Information Notice 1999-24, Broad-Scope Licensees' Responsibilities for Reviewing and Approving Unregistered Sealed Sources and Devices: Difference between revisions

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| issue date = 07/12/1999
| issue date = 07/12/1999
| title = Broad-Scope Licensees' Responsibilities for Reviewing and Approving Unregistered Sealed Sources and Devices
| title = Broad-Scope Licensees' Responsibilities for Reviewing and Approving Unregistered Sealed Sources and Devices
| author name = Cool D A
| author name = Cool D
| author affiliation = NRC/NMSS/IMNS
| author affiliation = NRC/NMSS/IMNS
| addressee name =  
| addressee name =  
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| page count = 15
| page count = 15
}}
}}
{{#Wiki_filter:K>UNITED STATESNUCLEAR REGULATORY COMMISSIONOFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDSWASHINGTON, D.C. 20555July 12, 1999NRC INFORMATION NOTICE 99-24: BROAD-SCOPE LICENSEES' RESPONSIBILITIESFOR REVIEWING AND APPROVING UNREGISTEREDSEALED SOURCES AND DEVICES
{{#Wiki_filter:K>
                                          UNITED STATES
 
NUCLEAR    REGULATORY         COMMISSION
 
OFFICE OF NUCLEAR MATERIAL             SAFETY       AND SAFEGUARDS
 
WASHINGTON,       D.C.   20555 July 12, 1999 LICENSEES' RESPONSIBILITIES
 
NRC INFORMATION NOTICE 99-24: BROAD-SCOPE AND APPROVING UNREGISTERED
 
FOR REVIEWING
 
SEALED SOURCES AND DEVICES


==Addressees==
==Addressees==
:All medical licensees of broad-scope and master materials licensees.
:
                                                      materials licensees.
 
All medical licensees of broad-scope and master


==Purpose==
==Purpose==
:The U.S. Nuclear Regulatory Commission (NRC) is issuing this information notice to alertaddressees to NRC's expectations about their uses of either sealed sources or devices whichare not listed in the registry of radiation safety information on sealed sources and devices. It isexpected that recipients will review this information for applicability to their facilities andconsider actions, as appropriate, to address these issues. However, suggestions contained inthis information notice are not new NRC requirements; therefore no specific action nor writtenresponse is required.
:
                                                      is issuing this information notice to alert
 
The U.S. Nuclear Regulatory Commission (NRC)
                                                          of either sealed sources or devices which
 
addressees to NRC's expectations about their uses                   on sealed sources and devices. It is
 
are not listed in the registry of radiation safety information
 
for applicability to their facilities and
 
expected that recipients will review this information
 
issues. However, suggestions contained in
 
consider actions, as appropriate, to address these             therefore no specific action nor written
 
this information notice are not new NRC requirements;
response is required.


==Description of Circumstances==
==Description of Circumstances==
:With the advent of new investigational studies using intravascular brachytherapy radiationtreatments to prevent restenosis of coronary and peripheral arteries after balloon angioplasty,there has been a significant increase in the use of unregistered sealed sources and/or devices.There has also been a marked increase in reported patient misadministrations and other eventsrelating to device failures. After two reported patient misadministrations in early 1998,discussed in detail in NRC Information Notice 98-10, there have been additional patientmisadministrations, and events reported. NRC is concerned by the unexpectedly high rate ofreported events for a relatively small number of unregistered sources and/or devices beingused in these trials.A primary contributing factor in these events, was the failure of the broad-scope licensees toperform appropriate radiation safety reviews of the sources and/or devices, the treatmentprotocols, and the procedures to be used in the clinical trials. These reviews directly contributeto the safe use of material, and must be performed to provide your radiation safety committeewith the information necessary to properly evaluate your participation in the proposed humanresearch trial.NRC has granted broad scope licensees the authority to use sealed sources and/or devicesthat you have fabricated or obtained from vendors without prior NRC or Agreement State review(;907;?PDQ In (F 90T64 9q _Da qq 01111 I,W-'JIN 99-24July 12,1999 and registration. However, you also have the responsibility for conducting these activitiesresponsibly and safely. For example, 10 CFR 33.13(c)(3)(iii) requires the review and approvalof these safety evaluations by the radiation safety committee, for Type A specific licensees ofbroad-scope.If you fabricate and use source(s) and/or device(s) of your own design, then it is clearly yourresponsibility to review the source(s) and/or device(s) and determine if they can be safely usedfor their intended use(s). This includes developing and enforcing any procedures or restrictionsdeemed necessary for the safe use of the source/device. Equally important, but frequentlyoverlooked, are your responsibilities for performing these same essential radiation safetyreviews when using unregistered source(s)/device(s) obtained from external suppliers, such asthe sponsors of clinical trials.Discussion:What are the responsibilities of my Radiation Safety Committee (RSC) when reviewingan application for approval of a specific medical use of sealed source(s) and/ordevice(s)?The requirements for radiation safety evaluations, reviews and approvals are set forth in10 CFR 33.13(c)(3)(ii) and 10 CFR 33.13(c)(3)(iii) for Type A specific license of broadscope. Thus, your radiation safety committee is required to insure that a proper radiationsafety evaluation commensurate with the intended use of the source(s) and/or devices havebeen performed.How do I determine whether or not I need to perform a radiation safety evaluation of asource or device?Check if the source and/or device is presently listed in NRC's Registry of Sealed Sourcesand devices as approved for your intended use. The registry can be accessed onlinethrough the NRC web page or at the following URL address:http://www.hsrd.ornl.gov/nrc/ssdr/ssdrindx.htm.If it is registered by NRC or an Agreement State and is approved for the intended use,then no radiation safety evaluation by your institution is required.If either the source and/or device has not been registered or, the source and/or devicehas not been approved for your intended use, then, to use this source/device, you mustperform the appropriate radiation safety evaluation and submit it for approval to yourRSC.Caution: You must insure that both source and device are registered, approved for usetogether, and approved for your intended use. In at least one case a source is approved forintravascular brachytherapy use. However, the corresponding manual afterloading devicefor this source is not approved for intravascular brachytherapy. In such instances, you mustperform the necessary evaluation of the device, including any impact on the radiation safetyof using the source in the device, and submit your evaluation to your RSC for approval.
:
                                                            intravascular brachytherapy radiation
 
With the advent of new investigational studies using                 arteries after balloon angioplasty, treatments to prevent restenosis of coronary and peripheral
 
unregistered sealed sources and/or devices.
 
there has been a significant increase in the use of
 
patient misadministrations and other events
 
There has also been a marked increase in reported
 
misadministrations in early 1998, relating to device failures. After two reported patient
 
there have been additional patient
 
discussed in detail in NRC Information Notice 98-10,                 by the unexpectedly high rate of
 
misadministrations, and events reported. NRC is concerned sources and/or devices being
 
reported events for a relatively small number of unregistered
 
used in these trials.
 
the failure of the broad-scope licensees to
 
A primary contributing factor in these events, was
 
sources and/or devices, the treatment
 
perform appropriate radiation safety reviews of the           trials. These reviews directly contribute
 
protocols, and the procedures to be used in the clinical
 
to provide your radiation safety committee
 
to the safe use of material, and must be performed
 
your participation in the proposed human
 
with the information necessary to properly evaluate
 
research trial.
 
to use sealed sources and/or devices
 
NRC has granted broad scope licensees the authority
 
without prior NRC or Agreement State review
 
that you have fabricated or obtained from vendors
 
(;907;?PDQ             In (F 90T649q _Da                         qq 01111
 
I,                                     W-'J
 
IN 99-24 July 12,1999 these activities
 
and registration. However, you also have the responsibility for conductingreview and approval
 
requires  the
 
responsibly and safely. For example, 10 CFR 33.13(c)(3)(iii)
                                                                                A specific licensees of
 
of these safety evaluations by the radiation safety committee, for Type
 
broad-scope.
 
then it is clearly your
 
If you fabricate and use source(s) and/or device(s) of your own design, if they can be safely used
 
responsibility to review the source(s) and/or device(s) and determine
 
any  procedures or restrictions
 
for their intended use(s). This includes developing and enforcing                       but frequently
 
important, deemed necessary for the safe use of the source/device. Equally                                 safety
 
radiation
 
overlooked, are your responsibilities for performing these same essential
 
external suppliers, such as
 
reviews when using unregistered source(s)/device(s) obtained from
 
the sponsors of clinical trials.
 
Discussion:
                                                                            (RSC) when reviewing
 
What are the responsibilities of my Radiation Safety Committee
 
source(s) and/or
 
an application for approval of a specific medical use of sealed
 
device(s)?
 
are set forth in
 
The requirements for radiation safety evaluations, reviews and approvals
 
license of broad
 
10 CFR 33.13(c)(3)(ii) and 10 CFR 33.13(c)(3)(iii) for Type A specific
 
is required  to insure  that  a proper radiation
 
scope. Thus, your radiation safety committee
 
use of the source(s)     and/or devices have
 
safety evaluation commensurate with the intended
 
been performed.
 
safety evaluation of a
 
How do I determine whether or not I need to perform a radiation
 
source or device?
 
of Sealed Sources
 
Check if the source and/or device is presently listed in NRC's Registry
 
accessed online
 
and devices as approved for your intended use. The registry can be
 
through the NRC web page or at the following URL address:
      http://www.hsrd.ornl.gov/nrc/ssdr/ssdrindx.htm.
 
intended use, If it is registered by NRC or an Agreement State and is approved for the
 
then no radiation safety evaluation by your institution is required.
 
and/or device
 
If either the source and/or device has not been registered or, the source               you must
 
has not been approved for your intended use, then, to use this source/device, to your
 
perform the appropriate radiation safety evaluation and submit it for approval
 
RSC.
 
approved for use
 
Caution: You must insure that both source and device are registered, a source is approved for
 
together, and approved for your intended use. In at least one case
 
afterloading device
 
intravascular brachytherapy use. However, the corresponding manual
 
In  such    instances, you must
 
for this source is not approved for intravascular brachytherapy.
 
impact    on  the radiation safety
 
perform the necessary evaluation of the device, including any
 
RSC    for approval.
 
of using the source in the device, and submit your evaluation to your
 
.I    J
 
Y)
                                                                                              In 99-24 July 12, 1999 Is there guidance available on how to perform a review?
 
States are
 
The requirements for performing these evaluations by the NRC and Agreement
 
these  reviews  is  contained      in
 
set forth in 10 CFR 32.210. The guidance for performing                                                  for
 
NUREG-1556, Vol. 3, "Consolidated Guidance About Materials Licenses                -  Applications
 
is
 
Sealed Source and Device Evaluation and Registration." The applicable guidance
 
The full
 
summarized in the following questions and answers for both sources and devices.
 
content of the NUREG is on the NRC web site at the following URL address:
    http://www.nrc.gov/NRC/nucmat.html.
 
intended
 
We expect a review that determines if a source/device can be safely used for its
 
risk  that could
 
use at your institution. This review should be commensurate with the level of
 
accident
 
be reasonably anticipated from the source/device for your intended use and likely
 
of reviews,  you may  not  need    to  conform    to
 
conditions. Since the guidance covers all types
 
the same rigorous review process that is referenced.
 
It is your responsibility to perform this review, obtain any necessary design and test
 
discover
 
information from the vendor and, if needed, conduct operational or other tests to
 
and evaluate potential radiation safety    hazards.
 
should
 
The results of this review, along with any necessary conditions or limitations on use, safety  officer,  for  approval.
 
be submitted to your radiation safety committee or radiological
 
procedures for
 
We have found that it is useful to develop appropriate written administrative
 
your radiation
 
the conduct of reviews and the approval or disapproval of the intended use by
 
safety committee.
 
How do I perform the radiation safety review for sealed sources?
 
use and in
 
Evaluate the likely environments to which the source will be subjected in normal
 
use, likely accident conditions. Normal use and likely accident conditions should include
 
handling, storage, and transportation.    Particular  attention  should  be given    to  the  chemical
 
various
 
and physical environments to which the source is exposed, such as normal saline, and  mechanical      stresses    that
 
body fluids, sterilization procedures (temperature extremes),
                                                                            to contain    and    effect  source
 
may be placed on the source (particularly by any devices used
 
with any
 
exposures). Perform this radiation safety evaluation of the source, commensurate
 
perceived risks from the failure of, or damage to, the source encapsulation.
 
design
 
To properly conduct this source evaluation, you will almost certainly require detailed
 
test data,  if available,    could
 
and construction information from the source vendor. Vendor
 
significantly reduce the effort required to perform the necessary radiation safety evaluation.
 
between
 
However, if essential design or test data are unavailable, you may have to chose
 
your
 
more extensive testing or withholding approval of the proposed use. It is also
 
responsibility to verify the accuracy of the data  used  to achieve  the prescribed      treatment
 
dose values through either: (1) direct measurement with        an  appropriately    calibrated
 
A
 
measurement system; or, (2) a thorough review of the vendor's calibration procedures. it
 
within    which
 
thorough knowledge of the radiation profiles from the source and any device
 
personnel
 
is used is essential. Specific conditions of use should be developed to ensure
 
exposures do not exceed 10 CFR Part 20        limits.
 
IN 99-24 July 12, 1999 How do I perform the radiation safety review for devices?
 
shield, and control
 
A safety evaluation must also be performed for a device used to contain, be commensurate
 
should
 
exposures of the source. The scope and depth of this evaluation
 
must  also  consider any operational
 
with the risks from failure of the device. The evaluation
 
to  unintended    exposures to
 
limitations inherent in the device design that could lead
 
design    and construction
 
radiation. This would require, at a minimum, sufficiently detailed
 
of the device and its
 
data to allow a full understanding of the construction and operation
 
components and safety features.
 
mean the
 
Integrity of the source/device under normal conditions does not necessarily or unusual
 
to an  accident
 
product will perform its intended function after being subjected
 
still ensure that the
 
conditions. Under accident or unusual conditions, the design should
 
protective source
 
byproduct material is not dispersed, the source remains within the
 
to be considered in
 
housing, and the shielding integrity is not comprised. Items that need
 
this evaluation include:
                                                                                      corrosion (i.e.,
        a. Use of dissimilar materials that are incompatible and could cause
 
is avoided;
            aluminum and stainless steel in a marine or saline environment)
                                                                                            to radiation or
 
b. The materials used in the construction are not degraded by exposure
 
other conditions of use;
        c. Fixed shielding cannot be easily moved or become dislodged;
                                                                                      to ensure they will
 
d. All moving parts [including the source(s)] have adequate spacing                      of the
 
not bind during use. This would include use conditions, such as bending the device
 
to
 
source transport system, and any external forces that could be applied
 
and/or transport system during use;
                                                                                        but not in an
 
e. If applicable, the device can be locked in a closed (safe) condition, open (unsafe) condition;
                                                                                        exposed or in a
 
f. Indicators are present that clearly identify whether the source(s) is
 
safely shielded condition;
                                                                                        accidental
 
g. Safety interlocks, barriers, or guards are used sufficient to prevent
 
exposures in excess of those specified in the regulations;
                                                                                      filtration, relief
 
h. If pneumatic or hydraulic systems are used, there are appropriate
 
valves, and operating pressures;
                                                                                            in the system
 
I. The device is designed to be fail-safe (i.e., loss of power or a failure
 
and, would return the source to, or leave it in, the fully shielded position);
                                                                                            or moisture.
 
j. If applicable, the device is hermetically sealed from foreign materials
 
IN 99-24 July 12, 1999 or other risk
 
I completed my safety evaluation and discovered design weaknesses
 
conditions of use.
 
factors that could pose radiation safety hazards during the anticipated
 
What do I do?
 
One or more of the following options will usually be available to you:
          a. Withhold authorization for the requested use;
          b. Correct any discovered design limitations or defects; or, source to
 
c. Adopt mandatory written procedures and/or limitations on the use of the
 
compensate for, or avoid, any radiation safety hazards discovered.
 
Administration
 
I Intend to participate In a clinical trial under an approved Food and Drug
 
FDA's  IDE  review    and approval
 
(FDA) Investigative Device Exemption (IDE). Doesn't the
 
source device
 
process eliminate the need for me to perform a corresponding sealed
 
review?
 
safety reviews.
 
No, the FDA IDE review does not substitute for sealed source and/or device
 
10  CFR  Part  30 and, in
 
IDE or 510K device approvals do not satisfy the requirements in
 
turn, 10 CFR Part 32.
 
entire protocol, The FDA review process focuses on the medical safety and efficacy of the
 
to the patient.  The    NRC review
 
including any sources and/or devices used, with respect
 
radiation  safety  of the  device. In
 
and approval process takes a more broad review of the                                      as well
 
general    public
 
particular the NRC review focuses on the protection of workers and
 
such  devices.
 
as the protection of the patient from unintentional radiation exposures from
 
IDE process for
 
The FDA reviews devices under several different processes, such as the                    for routine
 
human research applications, the 510K, or pre-market    approval    (PMA)  processes
 
requirements    are  met.  Similarly, patient treatments, as appropriate, to ensure its regulatory
 
NRC and/or Agreement State reviews are performed to ensure        that the  Commission's
 
regulatory requirements are satisfied.
 
for routine
 
Dual FDA and NRC reviews are regularly performed for sources and devices
 
approved  under  the 510k,  or  similar  process by
 
medical use. After a device is reviewed and
 
or an  Agreement    State,  before
 
the FDA, it must then be reviewed and registered by NRC
 
their use  by  NRC  or a
 
medical licensees of limited specific scope can be authorized for
 
broad scope licensee is relieved of performing its own radiation safety evaluations.
 
IN 99-24 July 12, 1999 resources
 
What are my options If I either do not have or, do not wish to commit, the
 
necessary to perform these full radiation safety evaluations?
 
safety
 
If NRC broad-scope licensees do not wish to become involved in the radiation
 
applications,  then    they can
 
evaluation of unregistered sources and/or devices in medical
 
devices    to those
 
elect to restrict their use of sealed sources of byproduct materials and/or
 
as
 
that have been reviewed by NRC or an Agreement State and listed in the Registry
 
approved for the licensee's intended use.
 
not the
 
The use of either a registered source or a device for a use that is similar to, but
 
proposed  use    differs little
 
same as, an approved use, may be a feasible alternative. If your
 
fairly  simple.
 
from the approved use, then the necessary radiation safety review could be
 
sealed sources
 
Why this emphasis on performance of proper radiation safety reviews of
 
and devices by broad scope licensees at this time?
 
events
 
NRC has observed a considerable increase in patient misadministrations and other
 
related to the use of unregistered sealed sources    and  devices  in the new  intravascular
 
the
 
brachytherapy clinical trials. In nearly all of these events, a failure on the part of
 
of source/device      used
 
licensee's RSC to require an appropriate radiation safety evaluation
 
scope  licensees    seem
 
was at least a contributing factor. We have observed that our broad
 
information
 
to rely too heavily on the source/device vendor to provide most, if not all, of the
 
review of
 
necessary for the radiation safety committee to properly perform a radiation safety
 
the source/device.
 
98-10, if our
 
For example, in the patient misadministrations cited in NRC Information Notice
 
that  was
 
broad-scope licensee had, before the event, performed the device evaluation
 
its radiation
 
performed after the event, and presented the reported corrective actions to
 
this would


.I JY)In 99-24July 12, 1999 Is there guidance available on how to perform a review?The requirements for performing these evaluations by the NRC and Agreement States areset forth in 10 CFR 32.210. The guidance for performing these reviews is contained inNUREG-1556, Vol. 3, "Consolidated Guidance About Materials Licenses -Applications forSealed Source and Device Evaluation and Registration." The applicable guidance issummarized in the following questions and answers for both sources and devices. The fullcontent of the NUREG is on the NRC web site at the following URL address:http://www.nrc.gov/NRC/nucmat.html.We expect a review that determines if a source/device can be safely used for its intendeduse at your institution. This review should be commensurate with the level of risk that couldbe reasonably anticipated from the source/device for your intended use and likely accidentconditions. Since the guidance covers all types of reviews, you may not need to conform tothe same rigorous review process that is referenced.It is your responsibility to perform this review, obtain any necessary design and testinformation from the vendor and, if needed, conduct operational or other tests to discoverand evaluate potential radiation safety hazards.The results of this review, along with any necessary conditions or limitations on use, shouldbe submitted to your radiation safety committee or radiological safety officer, for approval.We have found that it is useful to develop appropriate written administrative procedures forthe conduct of reviews and the approval or disapproval of the intended use by your radiationsafety committee.How do I perform the radiation safety review for sealed sources?Evaluate the likely environments to which the source will be subjected in normal use and inlikely accident conditions. Normal use and likely accident conditions should include use,handling, storage, and transportation. Particular attention should be given to the chemicaland physical environments to which the source is exposed, such as normal saline, variousbody fluids, sterilization procedures (temperature extremes), and mechanical stresses thatmay be placed on the source (particularly by any devices used to contain and effect sourceexposures). Perform this radiation safety evaluation of the source, commensurate with anyperceived risks from the failure of, or damage to, the source encapsulation.To properly conduct this source evaluation, you will almost certainly require detailed designand construction information from the source vendor. Vendor test data, if available, couldsignificantly reduce the effort required to perform the necessary radiation safety evaluation.However, if essential design or test data are unavailable, you may have to chose betweenmore extensive testing or withholding approval of the proposed use. It is also yourresponsibility to verify the accuracy of the data used to achieve the prescribed treatmentdose values through either: (1) direct measurement with an appropriately calibratedmeasurement system; or, (2) a thorough review of the vendor's calibration procedures. Athorough knowledge of the radiation profiles from the source and any device within which itis used is essential. Specific conditions of use should be developed to ensure personnelexposures do not exceed 10 CFR Part 20 limits.
safety committee as recommended conditions for approval of the intended use, approval process  expected  of such    a licensee


IN 99-24July 12, 1999 How do I perform the radiation safety review for devices?A safety evaluation must also be performed for a device used to contain, shield, and controlexposures of the source. The scope and depth of this evaluation should be commensuratewith the risks from failure of the device. The evaluation must also consider any operationallimitations inherent in the device design that could lead to unintended exposures toradiation. This would require, at a minimum, sufficiently detailed design and constructiondata to allow a full understanding of the construction and operation of the device and itscomponents and safety features.Integrity of the source/device under normal conditions does not necessarily mean theproduct will perform its intended function after being subjected to an accident or unusualconditions. Under accident or unusual conditions, the design should still ensure that thebyproduct material is not dispersed, the source remains within the protective sourcehousing, and the shielding integrity is not comprised. Items that need to be considered inthis evaluation include:a. Use of dissimilar materials that are incompatible and could cause corrosion (i.e.,aluminum and stainless steel in a marine or saline environment) is avoided;b. The materials used in the construction are not degraded by exposure to radiation orother conditions of use;c. Fixed shielding cannot be easily moved or become dislodged;d. All moving parts [including the source(s)] have adequate spacing to ensure they willnot bind during use. This would include use conditions, such as bending of thesource transport system, and any external forces that could be applied to the deviceand/or transport system during use;e. If applicable, the device can be locked in a closed (safe) condition, but not in anopen (unsafe) condition;f. Indicators are present that clearly identify whether the source(s) is exposed or in asafely shielded condition;g. Safety interlocks, barriers, or guards are used sufficient to prevent accidentalexposures in excess of those specified in the regulations;h. If pneumatic or hydraulic systems are used, there are appropriate filtration, reliefvalves, and operating pressures;I. The device is designed to be fail-safe (i.e., loss of power or a failure in the systemwould return the source to, or leave it in, the fully shielded position); and,j. If applicable, the device is hermetically sealed from foreign materials or moisture.
have constituted the type of review and RSC


IN 99-24July 12, 1999 I completed my safety evaluation and discovered design weaknesses or other riskfactors that could pose radiation safety hazards during the anticipated conditions of use.What do I do?One or more of the following options will usually be available to you:a. Withhold authorization for the requested use;b. Correct any discovered design limitations or defects; or,c. Adopt mandatory written procedures and/or limitations on the use of the source tocompensate for, or avoid, any radiation safety hazards discovered.I Intend to participate In a clinical trial under an approved Food and Drug Administration(FDA) Investigative Device Exemption (IDE). Doesn't the FDA's IDE review and approvalprocess eliminate the need for me to perform a corresponding sealed source devicereview?No, the FDA IDE review does not substitute for sealed source and/or device safety reviews.IDE or 510K device approvals do not satisfy the requirements in 10 CFR Part 30 and, inturn, 10 CFR Part 32.The FDA review process focuses on the medical safety and efficacy of the entire protocol,including any sources and/or devices used, with respect to the patient. The NRC reviewand approval process takes a more broad review of the radiation safety of the device. Inparticular the NRC review focuses on the protection of workers and general public as wellas the protection of the patient from unintentional radiation exposures from such devices.The FDA reviews devices under several different processes, such as the IDE process forhuman research applications, the 510K, or pre-market approval (PMA) processes for routinepatient treatments, as appropriate, to ensure its regulatory requirements are met. Similarly,NRC and/or Agreement State reviews are performed to ensure that the Commission'sregulatory requirements are satisfied.Dual FDA and NRC reviews are regularly performed for sources and devices for routinemedical use. After a device is reviewed and approved under the 510k, or similar process bythe FDA, it must then be reviewed and registered by NRC or an Agreement State, beforemedical licensees of limited specific scope can be authorized for their use by NRC or abroad scope licensee is relieved of performing its own radiation safety evaluations.
and the event might well have been prevented.


IN 99-24July 12, 1999 What are my options If I either do not have or, do not wish to commit, the resourcesnecessary to perform these full radiation safety evaluations?If NRC broad-scope licensees do not wish to become involved in the radiation safetyevaluation of unregistered sources and/or devices in medical applications, then they canelect to restrict their use of sealed sources of byproduct materials and/or devices to thosethat have been reviewed by NRC or an Agreement State and listed in the Registry asapproved for the licensee's intended use.The use of either a registered source or a device for a use that is similar to, but not thesame as, an approved use, may be a feasible alternative. If your proposed use differs littlefrom the approved use, then the necessary radiation safety review could be fairly simple.Why this emphasis on performance of proper radiation safety reviews of sealed sourcesand devices by broad scope licensees at this time?NRC has observed a considerable increase in patient misadministrations and other eventsrelated to the use of unregistered sealed sources and devices in the new intravascularbrachytherapy clinical trials. In nearly all of these events, a failure on the part of thelicensee's RSC to require an appropriate radiation safety evaluation of source/device usedwas at least a contributing factor. We have observed that our broad scope licensees seemto rely too heavily on the source/device vendor to provide most, if not all, of the informationnecessary for the radiation safety committee to properly perform a radiation safety review ofthe source/device.For example, in the patient misadministrations cited in NRC Information Notice 98-10, if ourbroad-scope licensee had, before the event, performed the device evaluation that wasperformed after the event, and presented the reported corrective actions to its radiationsafety committee as recommended conditions for approval of the intended use, this wouldhave constituted the type of review and RSC approval process expected of such a licenseeand the event might well have been prevented.
,   J                                      J


, JJIN 99-24July 12, 1999 This Information Notice requires no specific action nor written response. If you have anyquestions about the information in this notice, please contact the technical contact listed belowor the appropriate NRC regional office.Donald A. Cool, DirectorDivision of Industrial andMedical Nuclear SafetyOffice of Nuclear Material Safetyand Safeguards
IN 99-24 July 12, 1999 any
 
This Information Notice requires no specific action nor written response. If you have
 
listed below
 
questions about the information in this notice, please contact the technical contact
 
or the appropriate NRC regional office.
 
Donald A. Cool, Director
 
Division of Industrial and
 
Medical Nuclear Safety
 
Office of Nuclear Material Safety
 
and Safeguards


===Technical Contact:===
===Technical Contact:===
Robert L. Ayres, NMSS301- 415-5746E-mail: rxal @nrc.govAttachments:1. List of Recently Issued NMSS Information Notices2. List of Recently Issued NRC Information Notices


Attachment 1IN 99-24July 12, 1999 LIST OF RECENTLY ISSUEDNMSS INFORMATION NOTICESInformation Date ofNotice No. Subject Issuance Issued to99-23 Safety Concerns Related To 7/6/99 All U.S. NRC medical licenseesautorze to use -rw riuiaRepeated Control Unit Failuresof the Nucletron Classic ModelHigh-Dose-Rate RemoteAferloading BrachytherapyDevicesautnorized to use~d lrcy LI VI Oysources in Nucletron ClassicModel high-dose-rate (HDR)remote afterloaders99-2299-2099-1899-16-99-1199-0999-0699-0510 CFR 34.43(a)(1): Effective 6/25/99Date for Radiographer Certificationand Plans for Enforcement DiscretionContingency Planning for the 6/25/99Year 2000 Computer ProblemUpdate on NRC's Year 2000 6/14/99Activities for Materials Licenseesand Fuel Cycle Licensees andCertificate HoldersFederal Bureau of Investigation's 5/28Nuclear Site Security ProgramIncident Involving the Use of 4/16/99Radioactive Iodine-131Problems Encountered When 3/24/99Manually Editing treatment Dataon the Nucletron Microselectron-HDR (New) Model 105-9991998 Enforcement Sanctions as 3/19/99a Result of Deliberate Violationsof NRC Employee ProtectionRequirementsInadvertent Discharge of Carbon 3/8/99Dioxide Fire Protection Systemand Gas MigrationIndustrial Radiography LicenseesAll material and fuel cyclelicensees and certificate holdersAll material and fuel cyclelicensees and certificateholdersAll U.S. Nuclear RegulatoryCommission fuel cycle, powerreactor, and non-power reactorlicenseesAll medical use licenseesAll medical licensees authorizedto conduct high-dose-rate (HDR)remote after loadingbrachytherapy treatmentsAll U. S. Nuclear RegulatoryCommission licenseesAll holders of licenses for nuclearpower, research, and test reactor,and fuel cycle facilities
===Robert L. Ayres, NMSS===
                      301- 415-5746 E-mail: rxal @nrc.gov
 
Attachments:
1. List of Recently Issued NMSS Information Notices
 
2. List of Recently Issued NRC Information Notices
 
Attachment 1 IN 99-24 July 12, 1999 LIST OF RECENTLY ISSUED
 
NMSS INFORMATION NOTICES
 
Information                                    Date of
 
Notice No.         Subject                     Issuance Issued to
 
licensees
 
99-23       Safety Concerns Related To         7/6/99   All U.S. NRC
 
autorze    to- medical


' -)Attachment 2IN 99-24July 12,1999 LIST OF RECENTLY ISSUEDNRC INFORMATION NOTICESInformation Date ofNotice No. Subject Issuance Issued to99-23 Safety Concerns Related To 7/6/99 All U.S. NRC medical licensees-- ~ 4 -kAk_.Repeated Control Unit Failuresof the Nucletron Classic ModelHigh-Dose-Rate RemoteAferloading BrachytherapyDevicesauxtoneUU to UZOV WI MA ly 1.1 I -Lysources in Nucletron ClassicModel high-dose-rate (HDR)remote afterloaders99-2299-2199-2099-1999-1899-1799-16-10 CFR 34.43(a)(1); Effective 7/6/99Date for Radiographer Certificationand Plans for Enforcement DiscretionRecent Plant Events Caused 6/25/99By Human Performance ErrorsContingency Planning for the 6/25/99Year 200 Computer ProblemRupture of the Shell Side of a 6/23/99Feedwater Heater at the PointBeach Nuclear PlantUpdate on NRC's Year 2000 6/14/99Activities for Materials Licenseesand Fuel Cycle Licensees andCertificate HoldersIndustrial Radiography LicenseesAll holders of licenses for nuclearpower, test, and research reactorsAll material and fuel cyclelicensees and certificate holdersAll holders of operating licensesor construction permits for nuclearpower reactorsAll material and fuel cyclelicensees and certificate holdersAll holders of OL for nuclearpower reactors, except those whohave permanently ceasedoperations and have certified thatthe fuel has been permanentlyremoved from the reactorAll U.S. Nuclear RegulatoryCommission fuel cycle, powerreactor, and non-power reactorlicenseesProblems Associated with Post-Fire 6/3/99Safe-Shutdown Circuit AnalysesFederal Bureau of Investigation's 5/28Nuclear Site Security ProgramOL = Operating LicenseCP = Construction Permit
use rw riuia


IN 99-24July 12, 1999 IJIN 99-XXJuly XX, 1999 DOCUMENT NAME: A & G\Ayres\IN99a-aa.WPD* See previous concurrence.OFC MSIB I TechED* I OGC I MSIB* I D/IMNS INAME RAyres/1 Age EKraus STreby LWCamperDATE 1 / o ( /99 03/31/99 04/21/99 04/ 27/99 07// /99OFFICIAL RECORD COPY
Repeated Control Unit Failures                autnorized to use~d lrcyLI VI Oy


IN 99-XXJune XX, 1999 
of the Nucletron Classic Model                sources in Nucletron Classic
..K-IN 99-XXJune XX, 1999 DOCUMENT NAME: A & G\Ayres\IN99a-XX.WPD* See previous concurrence a, ',, IOFC fi MSIB IE 45 TechED* I OGC* I MSIB* I D/IMNS INAME RAyres/l r EKraus STreby LWCamper DACoolDATE : /o 2 3/99 j 03/31/99 04/21/99 04/27/99 05/ /99OFFICIAL RECORD COPY


IN 99-XXMay XX, 1999 K>/IN 99-XXApril XX, 1999   
High-Dose-Rate Remote                        Model high-dose-rate (HDR)
}}
            Aferloading Brachytherapy                    remote afterloaders
 
Devices
 
10 CFR 34.43(a)(1): Effective      6/25/99  Industrial Radiography Licensees
 
99-22 Date for Radiographer Certification
 
and Plans for Enforcement Discretion
 
Contingency Planning for the        6/25/99  All material and fuel cycle
 
99-20
            Year 2000 Computer Problem                    licensees and certificate holders
 
Update on NRC's Year 2000          6/14/99  All material and fuel cycle
 
99-18 Activities for Materials Licensees            licensees and certificate
 
and Fuel Cycle Licensees and                  holders
 
Certificate Holders
 
Federal Bureau of Investigation's  5/28      All U.S. Nuclear Regulatory
 
99-16- Nuclear Site Security Program                  Commission fuel cycle, power
 
reactor, and non-power reactor
 
licensees
 
Incident Involving the Use of      4/16/99    All medical use licensees
 
99-11 Radioactive Iodine-131 Problems Encountered When          3/24/99  All medical licensees authorized
 
99-09 Manually Editing treatment Data              to conduct high-dose-rate (HDR)
            on the Nucletron Microselectron-              remote after loading
 
HDR (New) Model 105-999                        brachytherapy treatments
 
1998 Enforcement Sanctions as      3/19/99    All U. S. Nuclear Regulatory
 
99-06 a Result of Deliberate Violations              Commission licensees
 
of NRC Employee Protection
 
Requirements
 
Inadvertent Discharge of Carbon    3/8/99    All holders of licenses for nuclear
 
99-05 Dioxide Fire Protection System                power, research, and test reactor, and Gas Migration                              and fuel cycle facilities
 
' -)                                    Attachment 2 IN 99-24 July 12,1999 LIST OF RECENTLY ISSUED
 
NRC INFORMATION NOTICES
 
Information                                          Date of
 
Notice No.            Subject                        Issuance  Issued to
 
7/6/99    All U.S.~ NRC    medical  licensees
 
99-23            Safety Concerns Related To                          --      4  -        kAk_.
 
Repeated Control Unit Failures                auxtoneUU    to UZOV WI MA ly 1.1 I -Ly
 
of the Nucletron Classic Model                sources in Nucletron Classic
 
High-Dose-Rate Remote                          Model high-dose-rate (HDR)
                Aferloading Brachytherapy                      remote afterloaders
 
Devices
 
10 CFR 34.43(a)(1); Effective      7/6/99    Industrial Radiography Licensees
 
99-22 Date for Radiographer Certification
 
and Plans for Enforcement Discretion
 
Recent Plant Events Caused        6/25/99    All holders of licenses for nuclear
 
99-21 By Human Performance Errors                  power, test, and research reactors
 
Contingency Planning for the      6/25/99    All material and fuel cycle
 
99-20                                                            licensees and certificate holders
 
Year 200 Computer Problem
 
Rupture of the Shell Side of a    6/23/99    All holders of operating licenses
 
99-19 Feedwater Heater at the Point                  or construction permits for nuclear
 
Beach Nuclear Plant                            power reactors
 
Update on NRC's Year 2000          6/14/99    All material and fuel cycle
 
99-18 Activities for Materials Licensees              licensees and certificate holders
 
and Fuel Cycle Licensees and
 
Certificate Holders
 
Problems Associated with Post-Fire 6/3/99      All holders of OL for nuclear
 
99-17 Safe-Shutdown Circuit Analyses                power reactors, except those who
 
have permanently ceased
 
operations and have certified that
 
the fuel has been permanently
 
removed from the reactor
 
Federal Bureau of Investigation's  5/28        All U.S. Nuclear Regulatory
 
99-16- Nuclear Site Security Program                  Commission fuel cycle, power
 
reactor, and non-power reactor
 
licensees
 
OL = Operating License
 
CP = Construction Permit
 
IN 99-24 July 12, 1999 have any
 
This Information Notice requires no specific action nor written response. If you
 
listed below
 
questions about the information in this notice, please contact the technical contact
 
or the appropriate NRC regional office.
 
(Orig. signed by)
                                                        Donald A. Cool, Director
 
Division of Industrial and
 
Medical Nuclear Safety
 
Office of Nuclear Material Safety
 
and Safeguards
 
===Technical Contact:===
 
===Robert L. Ayres, NMSS===
                            301- 415-5746 E-mail: rxal @nrc.gov
 
Attachments:
    1. List of Recently Issued NMSS Information Notices
 
2. List of Recently Issued NRC Information Notices
 
97/4vtZ7P
 
DOCUMENT NAME: G:\Ayres\99-24.in
 
* Se    previous concurrence
 
MSIB                  TechED* I        OGC*I        MSIB* I      D/IMNS I
 
OFC
 
RAyres7/1              EKraus        STreby        LWCamper          DACool
 
NAME
 
7/1/99                031/99
                                          03DATE        04/21/99      04/27/99          7/1/99 OFFICIAL RECORD COPY
 
IJ
 
IN 99-XX
 
July XX, 1999 DOCUMENT NAME: A & G\Ayres\IN99a-aa.WPD
 
* See previous concurrence
 
I    TechED*    I OGC    I MSIB* I        D/IMNS I
 
.OFC            MSIB
 
RAyres/1 Age      EKraus    STreby  LWCamper
 
NAME
 
03/31/99  04/21/99  04/ 27/99      07//  /99 DATE    1      / o ( /99 OFFICIAL RECORD COPY
 
IN 99-XX
 
June XX, 1999 Donald A. Cool, Director
 
Division of Industrial and
 
Medical Nuclear Safety
 
Office of Nuclear Material Safety
 
and Safeguards
 
===Technical Contact:===
 
===Robert L. Ayres, NMSS===
                            (301) 415-5746 E-mail: rxal @nrc.gov
 
Attachments:
    1.      List of Recently Issued NMSS Information Notices
 
2.      List of Recently Issued NRC Information Notices
 
DOCUMENT NAME: A & G\Ayres\IN99a-aa.WPD
 
it 1 At      4A '
    - bee  previous  ponuurrena                          _ ____  _              A_
-OFC      I      MSIB        l v~    TechED-    I        0GC* I        MSIB* I          DAIMNS I
 
NAME              RAyresAll              EKraus              STreby    LWCamper            DACool
 
DATE          C I2      /99i            03131/99          04/21/99      04/27/99          05/  /99 OFFICIAL RECORD COPY
 
K-
                              ..
 
IN 99-XX
 
June XX, 1999 DOCUMENT NAME: A & G\Ayres\IN99a-XX.WPD
 
* See previous concurrence                                          a, ',, I
 
MSIB      IE45    TechED*    I OGC* I  MSIB* I      D/IMNS I
 
OFC      fi
 
RAyres/l r          EKraus    STreby  LWCamper        DACool
 
NAME
 
j  03/31/99  04/21/99  04/27/99      05/      /99
 
===DATE              2===
              : /o 3/99 OFFICIAL RECORD COPY
 
IN 99-XX
 
May XX, 1999
 
===Technical Contact:===
 
===Robert L. Ayres, NMSS===
                          (301) 415-5746 E-mail: rxal nrc.gov
 
Attachments:
    1.    List of Recently Issued NMSS Information Notices
 
2.    List of Recently Issued NRC Information Notices
 
DOCUMENT NAME: A & G\Ayres\IN99a-XX.WPD
 
* See previous concurrence                    _        _/__/__        _            d- OFC            MSIB        l        TechED    JI    OGC* I        MSIB3 I      D/IMNS I
 
NAME          RAyres/Ill              EKraus          STreby        LWCamper        DACool
 
DATE    I    /Sd /99                03/31/99    I 04/21/99        04/27/99      05/    /99 OFFICIAL RECORD COPY
 
K>                                       /
                                                                                IN 99-XX
 
April XX, 1999 Attachments:
        1.    List of Recently Issued NMSS Information Notices
 
2.    List of Recently Issued NRC Information Notices
 
DOCUMENT NAME: A & G(I:\):IN99a-XX.WPD
 
A0h      kg
 
OFC
 
NAME
 
___DATE    I  _9_
              _
                  MSIB
 
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                  l/  /99
                          _
                              4 f    TechED
 
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                                                  l    0 C l
 
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                                                                    1 0
                                                                      64)1 t.4 /99 ID/MNS I
 
DACool
 
04/  /99 OFFICIAL RECORD COPY}}


{{Information notice-Nav}}
{{Information notice-Nav}}

Latest revision as of 04:50, 24 November 2019

Broad-Scope Licensees' Responsibilities for Reviewing and Approving Unregistered Sealed Sources and Devices
ML031040396
Person / Time
Site: Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Three Mile Island, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, Humboldt Bay, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, 05005228, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant  Entergy icon.png
Issue date: 07/12/1999
From: Cool D
NRC/NMSS/IMNS
To:
References
IN-99-024, NUDOCS 9907070034
Download: ML031040396 (15)


K>

UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF NUCLEAR MATERIAL SAFETY AND SAFEGUARDS

WASHINGTON, D.C. 20555 July 12, 1999 LICENSEES' RESPONSIBILITIES

NRC INFORMATION NOTICE 99-24: BROAD-SCOPE AND APPROVING UNREGISTERED

FOR REVIEWING

SEALED SOURCES AND DEVICES

Addressees

materials licensees.

All medical licensees of broad-scope and master

Purpose

is issuing this information notice to alert

The U.S. Nuclear Regulatory Commission (NRC)

of either sealed sources or devices which

addressees to NRC's expectations about their uses on sealed sources and devices. It is

are not listed in the registry of radiation safety information

for applicability to their facilities and

expected that recipients will review this information

issues. However, suggestions contained in

consider actions, as appropriate, to address these therefore no specific action nor written

this information notice are not new NRC requirements;

response is required.

Description of Circumstances

intravascular brachytherapy radiation

With the advent of new investigational studies using arteries after balloon angioplasty, treatments to prevent restenosis of coronary and peripheral

unregistered sealed sources and/or devices.

there has been a significant increase in the use of

patient misadministrations and other events

There has also been a marked increase in reported

misadministrations in early 1998, relating to device failures. After two reported patient

there have been additional patient

discussed in detail in NRC Information Notice 98-10, by the unexpectedly high rate of

misadministrations, and events reported. NRC is concerned sources and/or devices being

reported events for a relatively small number of unregistered

used in these trials.

the failure of the broad-scope licensees to

A primary contributing factor in these events, was

sources and/or devices, the treatment

perform appropriate radiation safety reviews of the trials. These reviews directly contribute

protocols, and the procedures to be used in the clinical

to provide your radiation safety committee

to the safe use of material, and must be performed

your participation in the proposed human

with the information necessary to properly evaluate

research trial.

to use sealed sources and/or devices

NRC has granted broad scope licensees the authority

without prior NRC or Agreement State review

that you have fabricated or obtained from vendors

(;907;?PDQ In (F 90T649q _Da qq 01111

I, W-'J

IN 99-24 July 12,1999 these activities

and registration. However, you also have the responsibility for conductingreview and approval

requires the

responsibly and safely. For example, 10 CFR 33.13(c)(3)(iii)

A specific licensees of

of these safety evaluations by the radiation safety committee, for Type

broad-scope.

then it is clearly your

If you fabricate and use source(s) and/or device(s) of your own design, if they can be safely used

responsibility to review the source(s) and/or device(s) and determine

any procedures or restrictions

for their intended use(s). This includes developing and enforcing but frequently

important, deemed necessary for the safe use of the source/device. Equally safety

radiation

overlooked, are your responsibilities for performing these same essential

external suppliers, such as

reviews when using unregistered source(s)/device(s) obtained from

the sponsors of clinical trials.

Discussion:

(RSC) when reviewing

What are the responsibilities of my Radiation Safety Committee

source(s) and/or

an application for approval of a specific medical use of sealed

device(s)?

are set forth in

The requirements for radiation safety evaluations, reviews and approvals

license of broad

10 CFR 33.13(c)(3)(ii) and 10 CFR 33.13(c)(3)(iii) for Type A specific

is required to insure that a proper radiation

scope. Thus, your radiation safety committee

use of the source(s) and/or devices have

safety evaluation commensurate with the intended

been performed.

safety evaluation of a

How do I determine whether or not I need to perform a radiation

source or device?

of Sealed Sources

Check if the source and/or device is presently listed in NRC's Registry

accessed online

and devices as approved for your intended use. The registry can be

through the NRC web page or at the following URL address:

http://www.hsrd.ornl.gov/nrc/ssdr/ssdrindx.htm.

intended use, If it is registered by NRC or an Agreement State and is approved for the

then no radiation safety evaluation by your institution is required.

and/or device

If either the source and/or device has not been registered or, the source you must

has not been approved for your intended use, then, to use this source/device, to your

perform the appropriate radiation safety evaluation and submit it for approval

RSC.

approved for use

Caution: You must insure that both source and device are registered, a source is approved for

together, and approved for your intended use. In at least one case

afterloading device

intravascular brachytherapy use. However, the corresponding manual

In such instances, you must

for this source is not approved for intravascular brachytherapy.

impact on the radiation safety

perform the necessary evaluation of the device, including any

RSC for approval.

of using the source in the device, and submit your evaluation to your

.I J

Y)

In 99-24 July 12, 1999 Is there guidance available on how to perform a review?

States are

The requirements for performing these evaluations by the NRC and Agreement

these reviews is contained in

set forth in 10 CFR 32.210. The guidance for performing for

NUREG-1556, Vol. 3, "Consolidated Guidance About Materials Licenses - Applications

is

Sealed Source and Device Evaluation and Registration." The applicable guidance

The full

summarized in the following questions and answers for both sources and devices.

content of the NUREG is on the NRC web site at the following URL address:

http://www.nrc.gov/NRC/nucmat.html.

intended

We expect a review that determines if a source/device can be safely used for its

risk that could

use at your institution. This review should be commensurate with the level of

accident

be reasonably anticipated from the source/device for your intended use and likely

of reviews, you may not need to conform to

conditions. Since the guidance covers all types

the same rigorous review process that is referenced.

It is your responsibility to perform this review, obtain any necessary design and test

discover

information from the vendor and, if needed, conduct operational or other tests to

and evaluate potential radiation safety hazards.

should

The results of this review, along with any necessary conditions or limitations on use, safety officer, for approval.

be submitted to your radiation safety committee or radiological

procedures for

We have found that it is useful to develop appropriate written administrative

your radiation

the conduct of reviews and the approval or disapproval of the intended use by

safety committee.

How do I perform the radiation safety review for sealed sources?

use and in

Evaluate the likely environments to which the source will be subjected in normal

use, likely accident conditions. Normal use and likely accident conditions should include

handling, storage, and transportation. Particular attention should be given to the chemical

various

and physical environments to which the source is exposed, such as normal saline, and mechanical stresses that

body fluids, sterilization procedures (temperature extremes),

to contain and effect source

may be placed on the source (particularly by any devices used

with any

exposures). Perform this radiation safety evaluation of the source, commensurate

perceived risks from the failure of, or damage to, the source encapsulation.

design

To properly conduct this source evaluation, you will almost certainly require detailed

test data, if available, could

and construction information from the source vendor. Vendor

significantly reduce the effort required to perform the necessary radiation safety evaluation.

between

However, if essential design or test data are unavailable, you may have to chose

your

more extensive testing or withholding approval of the proposed use. It is also

responsibility to verify the accuracy of the data used to achieve the prescribed treatment

dose values through either: (1) direct measurement with an appropriately calibrated

A

measurement system; or, (2) a thorough review of the vendor's calibration procedures. it

within which

thorough knowledge of the radiation profiles from the source and any device

personnel

is used is essential. Specific conditions of use should be developed to ensure

exposures do not exceed 10 CFR Part 20 limits.

IN 99-24 July 12, 1999 How do I perform the radiation safety review for devices?

shield, and control

A safety evaluation must also be performed for a device used to contain, be commensurate

should

exposures of the source. The scope and depth of this evaluation

must also consider any operational

with the risks from failure of the device. The evaluation

to unintended exposures to

limitations inherent in the device design that could lead

design and construction

radiation. This would require, at a minimum, sufficiently detailed

of the device and its

data to allow a full understanding of the construction and operation

components and safety features.

mean the

Integrity of the source/device under normal conditions does not necessarily or unusual

to an accident

product will perform its intended function after being subjected

still ensure that the

conditions. Under accident or unusual conditions, the design should

protective source

byproduct material is not dispersed, the source remains within the

to be considered in

housing, and the shielding integrity is not comprised. Items that need

this evaluation include:

corrosion (i.e.,

a. Use of dissimilar materials that are incompatible and could cause

is avoided;

aluminum and stainless steel in a marine or saline environment)

to radiation or

b. The materials used in the construction are not degraded by exposure

other conditions of use;

c. Fixed shielding cannot be easily moved or become dislodged;

to ensure they will

d. All moving parts [including the source(s)] have adequate spacing of the

not bind during use. This would include use conditions, such as bending the device

to

source transport system, and any external forces that could be applied

and/or transport system during use;

but not in an

e. If applicable, the device can be locked in a closed (safe) condition, open (unsafe) condition;

exposed or in a

f. Indicators are present that clearly identify whether the source(s) is

safely shielded condition;

accidental

g. Safety interlocks, barriers, or guards are used sufficient to prevent

exposures in excess of those specified in the regulations;

filtration, relief

h. If pneumatic or hydraulic systems are used, there are appropriate

valves, and operating pressures;

in the system

I. The device is designed to be fail-safe (i.e., loss of power or a failure

and, would return the source to, or leave it in, the fully shielded position);

or moisture.

j. If applicable, the device is hermetically sealed from foreign materials

IN 99-24 July 12, 1999 or other risk

I completed my safety evaluation and discovered design weaknesses

conditions of use.

factors that could pose radiation safety hazards during the anticipated

What do I do?

One or more of the following options will usually be available to you:

a. Withhold authorization for the requested use;

b. Correct any discovered design limitations or defects; or, source to

c. Adopt mandatory written procedures and/or limitations on the use of the

compensate for, or avoid, any radiation safety hazards discovered.

Administration

I Intend to participate In a clinical trial under an approved Food and Drug

FDA's IDE review and approval

(FDA) Investigative Device Exemption (IDE). Doesn't the

source device

process eliminate the need for me to perform a corresponding sealed

review?

safety reviews.

No, the FDA IDE review does not substitute for sealed source and/or device

10 CFR Part 30 and, in

IDE or 510K device approvals do not satisfy the requirements in

turn, 10 CFR Part 32.

entire protocol, The FDA review process focuses on the medical safety and efficacy of the

to the patient. The NRC review

including any sources and/or devices used, with respect

radiation safety of the device. In

and approval process takes a more broad review of the as well

general public

particular the NRC review focuses on the protection of workers and

such devices.

as the protection of the patient from unintentional radiation exposures from

IDE process for

The FDA reviews devices under several different processes, such as the for routine

human research applications, the 510K, or pre-market approval (PMA) processes

requirements are met. Similarly, patient treatments, as appropriate, to ensure its regulatory

NRC and/or Agreement State reviews are performed to ensure that the Commission's

regulatory requirements are satisfied.

for routine

Dual FDA and NRC reviews are regularly performed for sources and devices

approved under the 510k, or similar process by

medical use. After a device is reviewed and

or an Agreement State, before

the FDA, it must then be reviewed and registered by NRC

their use by NRC or a

medical licensees of limited specific scope can be authorized for

broad scope licensee is relieved of performing its own radiation safety evaluations.

IN 99-24 July 12, 1999 resources

What are my options If I either do not have or, do not wish to commit, the

necessary to perform these full radiation safety evaluations?

safety

If NRC broad-scope licensees do not wish to become involved in the radiation

applications, then they can

evaluation of unregistered sources and/or devices in medical

devices to those

elect to restrict their use of sealed sources of byproduct materials and/or

as

that have been reviewed by NRC or an Agreement State and listed in the Registry

approved for the licensee's intended use.

not the

The use of either a registered source or a device for a use that is similar to, but

proposed use differs little

same as, an approved use, may be a feasible alternative. If your

fairly simple.

from the approved use, then the necessary radiation safety review could be

sealed sources

Why this emphasis on performance of proper radiation safety reviews of

and devices by broad scope licensees at this time?

events

NRC has observed a considerable increase in patient misadministrations and other

related to the use of unregistered sealed sources and devices in the new intravascular

the

brachytherapy clinical trials. In nearly all of these events, a failure on the part of

of source/device used

licensee's RSC to require an appropriate radiation safety evaluation

scope licensees seem

was at least a contributing factor. We have observed that our broad

information

to rely too heavily on the source/device vendor to provide most, if not all, of the

review of

necessary for the radiation safety committee to properly perform a radiation safety

the source/device.

98-10, if our

For example, in the patient misadministrations cited in NRC Information Notice

that was

broad-scope licensee had, before the event, performed the device evaluation

its radiation

performed after the event, and presented the reported corrective actions to

this would

safety committee as recommended conditions for approval of the intended use, approval process expected of such a licensee

have constituted the type of review and RSC

and the event might well have been prevented.

, J J

IN 99-24 July 12, 1999 any

This Information Notice requires no specific action nor written response. If you have

listed below

questions about the information in this notice, please contact the technical contact

or the appropriate NRC regional office.

Donald A. Cool, Director

Division of Industrial and

Medical Nuclear Safety

Office of Nuclear Material Safety

and Safeguards

Technical Contact:

Robert L. Ayres, NMSS

301- 415-5746 E-mail: rxal @nrc.gov

Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

Attachment 1 IN 99-24 July 12, 1999 LIST OF RECENTLY ISSUED

NMSS INFORMATION NOTICES

Information Date of

Notice No. Subject Issuance Issued to

licensees

99-23 Safety Concerns Related To 7/6/99 All U.S. NRC

autorze to- medical

use rw riuia

Repeated Control Unit Failures autnorized to use~d lrcyLI VI Oy

of the Nucletron Classic Model sources in Nucletron Classic

High-Dose-Rate Remote Model high-dose-rate (HDR)

Aferloading Brachytherapy remote afterloaders

Devices

10 CFR 34.43(a)(1): Effective 6/25/99 Industrial Radiography Licensees

99-22 Date for Radiographer Certification

and Plans for Enforcement Discretion

Contingency Planning for the 6/25/99 All material and fuel cycle

99-20

Year 2000 Computer Problem licensees and certificate holders

Update on NRC's Year 2000 6/14/99 All material and fuel cycle

99-18 Activities for Materials Licensees licensees and certificate

and Fuel Cycle Licensees and holders

Certificate Holders

Federal Bureau of Investigation's 5/28 All U.S. Nuclear Regulatory

99-16- Nuclear Site Security Program Commission fuel cycle, power

reactor, and non-power reactor

licensees

Incident Involving the Use of 4/16/99 All medical use licensees

99-11 Radioactive Iodine-131 Problems Encountered When 3/24/99 All medical licensees authorized

99-09 Manually Editing treatment Data to conduct high-dose-rate (HDR)

on the Nucletron Microselectron- remote after loading

HDR (New) Model 105-999 brachytherapy treatments

1998 Enforcement Sanctions as 3/19/99 All U. S. Nuclear Regulatory

99-06 a Result of Deliberate Violations Commission licensees

of NRC Employee Protection

Requirements

Inadvertent Discharge of Carbon 3/8/99 All holders of licenses for nuclear

99-05 Dioxide Fire Protection System power, research, and test reactor, and Gas Migration and fuel cycle facilities

' -) Attachment 2 IN 99-24 July 12,1999 LIST OF RECENTLY ISSUED

NRC INFORMATION NOTICES

Information Date of

Notice No. Subject Issuance Issued to

7/6/99 All U.S.~ NRC medical licensees

99-23 Safety Concerns Related To -- 4 - kAk_.

Repeated Control Unit Failures auxtoneUU to UZOV WI MA ly 1.1 I -Ly

of the Nucletron Classic Model sources in Nucletron Classic

High-Dose-Rate Remote Model high-dose-rate (HDR)

Aferloading Brachytherapy remote afterloaders

Devices

10 CFR 34.43(a)(1); Effective 7/6/99 Industrial Radiography Licensees

99-22 Date for Radiographer Certification

and Plans for Enforcement Discretion

Recent Plant Events Caused 6/25/99 All holders of licenses for nuclear

99-21 By Human Performance Errors power, test, and research reactors

Contingency Planning for the 6/25/99 All material and fuel cycle

99-20 licensees and certificate holders

Year 200 Computer Problem

Rupture of the Shell Side of a 6/23/99 All holders of operating licenses

99-19 Feedwater Heater at the Point or construction permits for nuclear

Beach Nuclear Plant power reactors

Update on NRC's Year 2000 6/14/99 All material and fuel cycle

99-18 Activities for Materials Licensees licensees and certificate holders

and Fuel Cycle Licensees and

Certificate Holders

Problems Associated with Post-Fire 6/3/99 All holders of OL for nuclear

99-17 Safe-Shutdown Circuit Analyses power reactors, except those who

have permanently ceased

operations and have certified that

the fuel has been permanently

removed from the reactor

Federal Bureau of Investigation's 5/28 All U.S. Nuclear Regulatory

99-16- Nuclear Site Security Program Commission fuel cycle, power

reactor, and non-power reactor

licensees

OL = Operating License

CP = Construction Permit

IN 99-24 July 12, 1999 have any

This Information Notice requires no specific action nor written response. If you

listed below

questions about the information in this notice, please contact the technical contact

or the appropriate NRC regional office.

(Orig. signed by)

Donald A. Cool, Director

Division of Industrial and

Medical Nuclear Safety

Office of Nuclear Material Safety

and Safeguards

Technical Contact:

Robert L. Ayres, NMSS

301- 415-5746 E-mail: rxal @nrc.gov

Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

97/4vtZ7P

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June XX, 1999 Donald A. Cool, Director

Division of Industrial and

Medical Nuclear Safety

Office of Nuclear Material Safety

and Safeguards

Technical Contact:

Robert L. Ayres, NMSS

(301) 415-5746 E-mail: rxal @nrc.gov

Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

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IN 99-XX

May XX, 1999

Technical Contact:

Robert L. Ayres, NMSS

(301) 415-5746 E-mail: rxal nrc.gov

Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

DOCUMENT NAME: A & G\Ayres\IN99a-XX.WPD

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IN 99-XX

April XX, 1999 Attachments:

1. List of Recently Issued NMSS Information Notices

2. List of Recently Issued NRC Information Notices

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