FDA Medical Device Recalls (openFDA)
Varian Medical Systems, Inc. Oncology Systems: Varian brand Varian 52-leaf Standard MLC multileaf collimator; Reference/FSCA Identifier: CP-04792; Model Number(s): All models, including H52, H54, H56, HHM; Product is manufactured and distributed by Varian Medical Systems Inc., Palo Alto, CA. The Multileaf Collimator is intended to assist the Radiation Oncologist in the delivery of radiation to well defined target volumes while sparing surrounding normal tissue and critical organs from excess radiation.
- Recall number
- Z-1090-2012
- Recalling firm
- Varian Medical Systems, Inc. Oncology Systems
- Product
- Varian brand Varian 52-leaf Standard MLC multileaf collimator; Reference/FSCA Identifier: CP-04792; Model Number(s): All models, including H52, H54, H56, HHM; Product is manufactured and distributed by Varian Medical Systems Inc., Palo Alto, CA. The Multileaf Collimator is intended to assist the Radiation Oncologist in the delivery of radiation to well defined target volumes while sparing surrounding normal tissue and critical organs from excess radiation.
- Status
- Terminated
- Initiated
- 2012-01-16
- Posted
- 2012-02-23
- Terminated
- 2012-07-26
- Reason
- When using the Standard and Millennium 52-leaf MLC multi-leaf collimators for beam shaping, under specific treatment conditions, dose may be delivered outside of the intended treatment field that exceed the expected transmission dose.
- Root cause
- Device Design
- Action
- Varian Medical Systems sent an "URGENT MEDICAL DEVICE CORRECTION" letter dated January 16, 2012 to all affected customers. The letter describes the product, problem, and actions to be taken by the customers. The letter provides recommended actions when planning and treating dynamic fields on the 52 leaf MLCs. Contact the Help Desk at 1-888-827-4265 for questions regarding this recall.
- Quantity
- not on file
- Distribution
- Worldwide Distribution-USA (nationwide) including Puerto Rico and the countries of Canada, China, Austria, Belgium, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Spain, Sweden, Switzerland, United Kingdom, Singapore, Bahrain, Egypt, Hong Kong, India, Indonesia, Israel, Malaysia, Morocco, Nepal, South Africa, South Korea, Taiwan, Turkey, Ukraine, United Arab Emirates, Japan, Brazil, Chile, Colombia, Mexico, Panama, Venezuela, Saudi Arabia, and Australia.
- Lot, serial or model codes
- Serial Numbers/CODES: H520102 ,H520235 ,H520362 ,H520458 ,H520542 ,H520614 ,H520682 ,H520740 ,H520797 ,H520116 ,H520237 ,H520364 ,H520461 ,H520545 ,H520615 ,H520684 ,H520743 ,H520798 ,H520122 ,H520244 ,H520367 ,H520468 ,H520546 ,H520618 ,H520685 ,H520745 ,H520799 ,H520126 ,H520247 ,H520368 ,H520474 ,H520547 ,H520619 ,H520687 ,H520746 ,H520800 ,H520130 ,H520251 ,H520369 ,H520481 ,H520548 ,H520620 ,H520689 ,H520747 ,H520801 ,H520134 ,H520300 ,H520370 ,H520482 ,H520552 ,H520622 ,H520690 ,H520748 ,H520804 ,H520136 ,H520302 ,H520373 ,H520485 ,H520553 ,H520624 ,H520691 ,H520750 ,H520808 ,H520138 ,H520304 ,H520378 ,H520488 ,H520554 ,H520625 ,H520693 ,H520752 ,H520809 ,H520141 ,H520305 ,H520380 ,H520489 ,H520555 ,H520626 ,H520695 ,H520755 ,H520810 ,H520146 ,H520311 ,H520381 ,H520490 ,H520557 ,H520627 ,H520697 ,H520756 ,H520811 ,H520154 ,H520312 ,H520386 ,H520493 ,H520559 ,H520628 ,H520698 ,H520757 ,H520813 ,H520156 ,H520315 ,H520387 ,H520496 ,H520560 ,H520630 ,H520699 ,H520760 ,H520815 ,H520161 ,H520318 ,H520391 ,H520499 ,H520563 ,H520631 ,H520700 ,H520761 ,H520817 ,H520168 ,H520319 ,H520394 ,H520501 ,H520564 ,H520632 ,H520701 ,H520762 ,H520818 ,H520169 ,H520320 ,H520395 ,H520505 ,H520566 ,H520633 ,H520704 ,H520763 ,H520820 ,H520172 ,H520322 ,H520396 ,H520506 ,H520571 ,H520637 ,H520707 ,H520765 ,H520821 ,H520175 ,H520324 ,H520398 ,H520508 ,H520575 ,H520639 ,H520708 ,H520766 ,H520823 ,H520179 ,H520326 ,H520406 ,H520509 ,H520577 ,H520640 ,H520710 ,H520767 ,H520824 ,H520180 ,H520328 ,H520408 ,H520511 ,H520578 ,H520642 ,H520714 ,H520768 ,H520827 ,H520182 ,H520329 ,H520409 ,H520512 ,H520580 ,H520643 ,H520715 ,H520769 ,H520828 ,H520183 ,H520330 ,H520410 ,H520513 ,H520582 ,H520647 ,H520717 ,H520771 ,H520832 ,H520184 ,H520333 ,H520412 ,H520514 ,H520584 ,H520648 ,H520718 ,H520772 ,H520833 ,H520186 ,H520334 ,H520413 ,H520517 ,H520585 ,H520649 ,H520719 ,H520773 ,H520840 ,H520190 ,H520335 ,H520414 ,H520518 ,H520587 ,H520650 ,H520720 ,H520774 ,H520841 ,H520191 ,H520336 ,H520421 ,H520520 ,H520589 ,H520654 ,H520721 ,H520775 ,H520843 ,H520192 ,H520338 ,H520423 ,H520521 ,H520590 ,H520659 ,H520722 ,H520776 ,H520849 ,H520197 ,H520340 ,H520432 ,H520522 ,H520596 ,H520660 ,H520724 ,H520778 ,H520851 ,H520198 ,H520346 ,H520436 ,H520524 ,H520598 ,H520661 ,H520726 ,H520783 ,H520852 ,H520199 ,H520347 ,H520437 ,H520525 ,H520599 ,H520663 ,H520727 ,H520784 ,H520853 ,H520202 ,H520350 ,H520438 ,H520529 ,H520600 ,H520664 ,H520728 ,H520785 ,H520854 ,H520204 ,H520351 ,H520439 ,H520531 ,H520601 ,H520665 ,H520731 ,H520786 ,H520855 ,H520205 ,H520352 ,H520440 ,H520532 ,H520605 ,H520666 ,H520732 ,H520790 ,H520856 ,H520211 ,H520354 ,H520442 ,H520533 ,H520609 ,H520671 ,H520734 ,H520793 ,H520857 ,H520216 ,H520356 ,H520443 ,H520535 ,H520610 ,H520674 ,H520737 ,H520794 ,H520858 ,H520217 ,H520357 ,H520445 ,H520537 ,H520611 ,H520678 ,H520738 ,H520795 ,H520859 ,H520221 ,H520359 ,H520447 ,H520541 ,H520612 ,H520679 ,H520739 ,H520796 ,H520860 ,H541142 ,H561022 ,H561064 ,H561137 ,H561176 ,HHM0006 ,HHM0064 ,H541227 ,H561023 ,H561067 ,H561138 ,H561178 ,HHM0007 ,HHM0066 ,H541249 ,H561024 ,H561069 ,H561139 ,H561179 ,HHM0008 ,HHM0067 ,H541331 ,H561025 ,H561070 ,H561140 ,H561180 ,HHM0009 ,HHM0069 ,H541344 ,H561026 ,H561076 ,H561141 ,H561181 ,HHM0010 ,HHM0099 ,H541425 ,H561027 ,H561096 ,H561142 ,H561182 ,HHM0011 ,HHM1202 ,H541429 ,H561028 ,H561100 ,H561144 ,H561185 ,HHM0012 ,H541449 ,H561029 ,H561101 ,H561145 ,H561186 ,HHM0013 ,H541463 ,H561030 ,H561102 ,H561146 ,H561187 ,HHM0014 ,H541465 ,H561031 ,H561103 ,H561147 ,H561188 ,HHM0015 ,H541467 ,H561033 ,H561104 ,H561148 ,H561189 ,HHM0016 ,H541640 ,H561034 ,H561105 ,H561149 ,H561190 ,HHM0017 ,H542515 ,H561035 ,H561106 ,H561150 ,H561191 ,HHM0018 ,H542737 ,H561036 ,H561107 ,H561151 ,H561192 ,HHM0019 ,H542755 ,H561037 ,H561109 ,H561152 ,H561193 ,HHM0020 ,H542834 ,H561038 ,H561110 ,H561153 ,H561194 ,HHM0022 ,H543057 ,H561039 ,H561111 ,H561154 ,H561195 ,HHM0023 ,H543093 ,H561040 ,H561112 ,H561155 ,H561196 ,HHM0024 ,H543311 ,H561041 ,H561113 ,H561156 ,H561199 ,HHM0025 ,H544189 ,H561043 ,H561114 ,H561157 ,H561200 ,HHM0026 ,H545563 ,H561044 ,H561115 ,H561158 ,H561201 ,HHM0027 ,H545773 ,H561045 ,H561116 ,H561159 ,H561203 ,HHM0028 ,H561006 ,H561046 ,H561117 ,H561160 ,H561204 ,HHM0029 ,H561008 ,H561047 ,H561118 ,H561161 ,H561205 ,HHM0030 ,H561009 ,H561048 ,H561119 ,H561162 ,H561206 ,HHM0031 ,H561010 ,H561050 ,H561120 ,H561163 ,H561207 ,HHM0032 ,H561011 ,H561052 ,H561121 ,H561166 ,H561208 ,HHM0033 ,H561012 ,H561053 ,H561122 ,H561167 ,H561209 ,HHM0034 ,H561013 ,H561054 ,H561123 ,H561168 ,H561210 ,HHM0035 ,H561015 ,H561057 ,H561124 ,H561169 ,H561211 ,HHM0036 ,H561016 ,H561058 ,H561126 ,H561170 ,H561212 ,HHM0038 ,H561017 ,H561059 ,H561128 ,H561171 ,H561215 ,HHM0039 ,H561018 ,H561060 ,H561130 ,H561172 ,H563989 ,HHM0060 ,H561019 ,H561061 ,H561134 ,H561173 ,H564795 ,HHM0061 ,H561020 ,H561062 ,H561135 ,H561174 ,HHM0004 ,HHM0062 ,H561021 ,H561063 ,H561136 ,H561175 ,HHM0005 ,HHM0063
- 510(k) numbers
- ["K050442","K071992","K943224"]
- PMA numbers
- not on file
- Product code
- IYE
- Firm FEI
- 2916710
- Firm city
- Palo Alto
- Firm state
- CA
- Firm country
- not on file
Where this comes from
- Register
- FDA Medical Device Recalls (openFDA)
- Publisher
- U.S. Food and Drug Administration (openFDA)
- File
- device-recall-0001-of-0001.json.zip
- sha256
- b87518bfe2e8
- Size
- 288210821 bytes
- Published
- 2026-09-28
- Read
- 2026-09-29T08:25:23.626Z
- Source file
- Source file retained · verify
- Refresh due
- 2026-10-06
Unless otherwise noted, the content, data, documentation, code, and related materials on openFDA is public domain and made available with a Creative Commons CC0 1.0 Universal dedication.
Cite as
FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28