AKTINA MEDICAL PHYSICS CORPORATION EECTRON BEAM FIELD SHAPING SYSTEM

K973953 · Aktina Medical Physics Corp. · IXI · Jan 14, 1998 · Radiology

Device Facts

Record IDK973953
Device NameAKTINA MEDICAL PHYSICS CORPORATION EECTRON BEAM FIELD SHAPING SYSTEM
ApplicantAktina Medical Physics Corp.
Product CodeIXI · Radiology
Decision DateJan 14, 1998
DecisionSESE
Submission TypeTraditional
Regulation21 CFR 892.5710
Device ClassClass 2
AttributesTherapeutic

Indications for Use

This device is intended to be used in Radiation Therapy for creating irregularly shaped treatment fields in electron beam therapy.

Device Story

Electron Beam Field Shaping System creates custom-shaped radiation shielding for electron beam therapy. Process involves transferring patient skin outline to Styrofoam using optional polycarbonate inserts; cutting Styrofoam with hot wire cutter; pouring molten low-melting-point lead alloy into form. Resulting cerrobend mask is mounted in electron cone to block radiation. Device used in clinical radiation therapy settings by medical physicists or technicians. Blocks do not contact patient; polycarbonate inserts contact patient briefly (<2 minutes). System provides custom beam shaping to contour radiation to specific treatment areas, improving precision of electron beam delivery.

Clinical Evidence

No clinical data. Bench testing only. Biocompatibility assessment provided for optional polycarbonate inserts; lead alloy blocks do not contact patient.

Technological Characteristics

System components include low-melting-point lead alloy (cerrobend) for shielding, Styrofoam forms, and optional polycarbonate inserts. Manual fabrication process using hot wire cutter. Non-electronic, mechanical device. No software or energy source integral to the device function.

Indications for Use

Indicated for use in radiation therapy to create irregularly shaped treatment fields for electron beam therapy by supplementing the treatment machine's electron collimation system with tertiary beam blocks.

Regulatory Classification

Identification

A radiation therapy beam-shaping block is a device made of a highly attenuating material (such as lead) intended for medical purposes to modify the shape of a beam from a radiation therapy source.

Predicate Devices

Submission Summary (Full Text)

{0}------------------------------------------------ K973953 ﺮ # JAN 1 4 1998 ## Summary of Safety and Effectiveness Compliance with 513 (i) of the Federal Food, Drug and Cosmetic Act October 10, 1997 #### General Provisions 1. Trade Name: Electron Beam Field Shaping System Common Name: Blocks. Beam Shaping Applicant Name and Address: Aktina Medical Physics Corporation 360 North Route 9 W Congers, New York, 10920 Phone: 914-268-0101 FAX: 914-268-1700 Registration Number: 2436865 #### 2. Name of Predicate Devices Clark Research and Development, Clark Precision Block Cutter K8426151 #### Classification 3. This device is classified as a class II device according to 21 CFR 870.5710. #### Performance Standards 4. The FDA under Section 514 of the Food, Drug and Cosmetic Act has not established performance standards for Beam Shaping Blocks. #### Intended Use and Device Description ડ. This device is intended to be used in Radiation Therapy for creating irregularly shaped treatment fields in electron beam therapy. #### Biocompatibility 6. l Any statement made in conjunction with this submission regarding substantial equivalence to any other product only relates to whether the product can be lawfully marketed without pre-market approval or reclassification and is not to be interpreted as an admission or used as evidence in patent infringement litigation. As the Commissioner of the FDA has indicated, "... a determination of substantial equivalence under the Federal Food, Drug, and Cosmetic Act relates to the fact that the product can be lawfully marketed without pre-market approval or reclassification. This determination is not intended to have any bearing whatsoever on the resolution of patent infringement suits." 42 Fed. Reg. 42,520 et seg. (1977). {1}------------------------------------------------ The electron beam block is mounted in the end of an electron cone and is not in contact with the patient at any time when in use. Therefore, no biocompatibility studies were undertaken for the device. Only the optional accessory, the Polycarbonate Inserts, used to transfer an outline of the area that requires beam blocking from the patients skin to the Styrofoam that must be cut with the hot wire cutter to produce a cerrobend mask, come in contact with the patient. The extent of patient contact is very short in duration (less than 2 minutes per use). As clearly stated in section 11 of the Material Data Safety Sheet supplied by the manufacturer of the Polycarbonate material, there are no adverse eye, skin or inhalation effects observed in toxicological testing . #### 7. Summary of Substantial Equivalence This device is similar in design, construction, materials, intended use and performance characteristics to the predicate devices. No new issues of safety or effectiveness are introduced by using this device. {2}------------------------------------------------ ### DEPARTMENT OF HEALTH & HUMAN SERVICES Public Health Service Image /page/2/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the circle is a stylized image of an eagle with three wavy lines representing its feathers. Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 Joan Zacharopoulos Vice President Aktina Medical Physics Corporation 360 North Route 9W Congers, NY 10920 Re: K973953 Akinta Medical Physics Corporation Electron Beam Shaping System Dated: October 10, 1997 Received: October 16, 1997 Regulatory class: II 21 CFR 892.5710/Procode: 90 IXI 1 4 1998 Dear Ms. Zacharopoulos: We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent for the indications for use stated in the enclosure) to devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. If your device is classified (see above) into either class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic OS inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition. FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under Radiation Control provisions, or other Federal laws or regulations. . . . . . . . . . . . This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market ... ... ......................................................................................................................... If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4613. Additionally, for question and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsmamain.html": -------------------------------------------------------------------------------------------- Sincerely yours. h.T.Liau Yri Lillian Yin, Ph.D. Director, Division of Reproductive, Abdominal, Ear, Nose and Throat, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {3}------------------------------------------------ ### Indications for Use 510(k) Number: Device Name: Electron Beam Field Shaping System Indications for Use: In Radiation Therapy, it is often necessary to create irregularly shaped fields to contour to the desired treatment shape. Irregular shaped fields for electron beam cases can be achieved by supplementing the shaping ability of the treatment machine's electron collimation system with tertiary beam blocks. These Beam Blocks are inserted into the ends of the electron cones. The electron beam blocks are created from low melting point lead alloy that is poured in a molten state into a pre-cut Styrofoam form. When the molten lead alloy cools it creates a hard, lead shield custom shaped for the desired form. Concurrence of CDRH, Office of Device Evaluation (ODE) Prescription Use:_ 801.109) or Over-The Counter Use: __ (Per 21 CFR David C. Stegner (Division Sign-Off) Division of Reproductive, Abdominal, EN and Radiological Dev 510(k) Number
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