(181 days)
No
The description focuses on the hardware and physical delivery of radiation, with no mention of AI/ML for planning, targeting, or other functions. The "Mentions AI, DNN, or ML" field is explicitly marked as "Not Found".
Yes
The device is described as a "teletherapy device intended for stereotactic irradiation" that delivers a "prescribed dose as one or more shots of ionizing radiation to the exact site of the target" to treat various medical conditions. This aligns with the definition of a therapeutic device designed to treat or alleviate disease.
No
The Leksell Gamma Knife Perfexion is a teletherapy device used for stereotactic irradiation, which is a treatment method, not a diagnostic one. It uses preoperative radiological examinations for planning but does not itself perform diagnosis.
No
The device description explicitly states it contains 192 sealed sources of Cobalt 60 and describes physical units on both the medical and office sides, indicating it is a hardware-based system for delivering radiation.
No, this device is not an IVD (In Vitro Diagnostic).
Here's why:
- IVD Definition: In Vitro Diagnostic devices are used to examine specimens taken from the human body (like blood, urine, tissue) to provide information for diagnosis, monitoring, or screening.
- Device Function: The Leksell Gamma Knife Perfexion is a teletherapy device that uses ionizing radiation to treat head structures. It directly interacts with the patient's body to deliver radiation, rather than analyzing samples taken from the body.
- Intended Use: The intended use clearly states "stereotactic irradiation of head structures," which is a therapeutic procedure, not a diagnostic one based on in vitro analysis.
The device description and intended use clearly indicate that this is a therapeutic device used for radiosurgery, not an in vitro diagnostic device.
N/A
Intended Use / Indications for Use
Leksell Gamma Knife® Perfexion™ is a teletherapy device intended for stereotactic irradiation of head structures ranging from very small target sizes of a few millimeters to several centimeters e.g., metastatic tumors, recurrent glioblastomas, trigeminal neuralgia, medically refractory essential tremor, ocular tumors, optic nerve tumors, benign diseases (such as meningiomas, vestibular schwannomas, post-surgical pituitary adenomas, craniopharyngioma, hemangioblastomas, schwannomas, arteriovenous malformations, cavernous malformations, chordomas, glomus tumors, hemangiomas). skull base tumors, head and neck tumors (such as unknown of the head and neck, oral cavity, hypopharynx, oropharynx, nasopharynx, sinonasal, salivary gland), and pediatric tumors (such as glioma, ependymoma, pituitary tumors, hemangioblastoma, craniopharyngioma, metastasis, medulloblastoma, nasopharyngeal tumors, arteriovenous malformations, cavernous malformations, skull base tumors).
Product codes
IWB
Device Description
Leksell Gamma Knife Perfexion is a radiosurgery system for use in the stereotactic irradiation of intra-cranial structures. Surgery is achieved by delivering a prescribed dose as one or more shots of ionizing radiation to the exact site of the target.
Based on preoperative radiological examinations, the Leksell Gamma Knife Perfexion unit provides highly accurate external irradiation of intra-cranial structures using collimated beams of ionizing radiation.
Each unit contains 192 sealed sources of Cobalt 60.
Leksell Gamma Knife Perfexion systems consists of several units, physically separated in an Office side in the control room and a Medical side in the treatment room.
- The medical side consists basically of the radiation unit with a patient positioning o system. The system control and power units are placed inside the cover of the radiation unit.
- The office side consists of the operator console with control panel and office computer. o
Mentions image processing
Not Found
Mentions AI, DNN, or ML
Not Found
Input Imaging Modality
Not Found
Anatomical Site
head, intra-cranial structures, oral cavity, hypopharynx, oropharynx, nasopharynx, sinonasal, salivary gland
Indicated Patient Age Range
adults and children from the age of 2 years and up.
Intended User / Care Setting
Not Found
Description of the training set, sample size, data source, and annotation protocol
Not Found
Description of the test set, sample size, data source, and annotation protocol
Not Found
Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)
Clinical testing was not required to support substantial equivalence with the predicate devices. A risk analysis review was performed to investigate the impact from the new intended use. The conclusion was that the Leksell Gamma Knife® Perfexion is as safe and as effective as its predicate for the new indications.
The technical characteristics of the device has not changed compared to the previously cleared Leksell Gamma Knife® Perfexion K133565 and no new performance testing has been made.
Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)
Not Found
Predicate Device(s)
TrueBeam, TrueBeam STx, Edge K140528, Leksell Gamma Knife® Perfexion™ K133565
Reference Device(s)
Leksell Stereotactic System K080355, Leksell GammaPlan® PFX K103093
Predetermined Change Control Plan (PCCP) - All Relevant Information
Not Found
§ 892.5750 Radionuclide radiation therapy system.
(a)
Identification. A radionuclide radiation therapy system is a device intended to permit an operator to administer gamma radiation therapy, with the radiation source located at a distance from the patient's body. This generic type of device may include signal analysis and display equipment, patient and equipment supports, treatment planning computer programs, component parts (including beam-limiting devices), and accessories.(b)
Classification. Class II.
0
Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which features a staff with a serpent entwined around it, topped by a stylized representation of three human figures. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" is arranged in a circular fashion around the caduceus symbol.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
October 29, 2015
Elekta Instrument AB % Ms. Matilda Forsberg Regulatory Affairs Engineer Kungstensgatan 18 SE-103 93 STOCKHOLM SWEDEN
Re: K151159
Trade/Device Name: Leksell Gamma Knife Perfexion Regulation Number: 21 CFR 892.5750 Regulation Name: Radionuclide radiation therapy system Regulatory Class: II Product Code: IWB Dated: September 25, 2015 Received: September 28, 2015
Dear Ms. Forsberg:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). 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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
1
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638 2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours.
For
Robert Ochs. Ph.D. Director Division of Radiological Health Office of In Vitro Diagnostics and Radiological Health Center for Devices and Radiological Health
Enclosure
2
Indications for Use
510(k) Number (if known)
Device Name
Leksell Gamma Knife Perfexion
Indications for Use (Describe)
Leksell Gamma Knife® Perfexion™ is a teletherapy device intended for stereotactic irradiation of head structures ranging from very small target sizes of a few millimeters to several centimeters e.g., metastatic tumors, recurrent glioblastomas, trigeminal neuralgia, medically refractory essential tremor, ocular tumors, optic nerve tumors, benign diseases (such as meningiomas, vestibular schwannomas, post-surgical pituitary adenomas, craniopharyngioma, hemangioblastomas, schwannomas, arteriovenous malformations, cavernous malformations, chordomas, glomus tumors, hemangiomas). skull base tumors, head and neck tumors (such as unknown of the head and neck, oral cavity, hypopharynx, oropharynx, nasopharynx, sinonasal, salivary gland), and pediatric tumors (such as glioma, ependymoma, pituitary tumors, hemangioblastoma, craniopharyngioma, metastasis, medulloblastoma, nasopharyngeal tumors, arteriovenous malformations, cavernous malformations, skull base tumors).
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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3
ELEKTA INSTRUMENT AB
Dokumentnamn/Name of document
Traditional 510(k)
| Utfärdare/Issuer | Matilda Forsberg |
|---|---|
| Avser/Regarding | Leksell Gamma Knife Perfexion |
| Ref nr/Dok nr/Ref no/Doc no | -- |
| Utgåva /Edition | -- |
| Directory | -- |
Section 4- 510(k) Summary
As Required by 21 CFR 807.92(c) 510 (k) Summary
1. Subscribers Name & Address
Elekta Instrument AB Kungstensgatan 18, P.O. Box 7593 SE-103 93 Stockholm, Sweden Tel: (011) 46 8 587 254 00 Fax: (011) 46 8 587 255 00 Official Correspondent: Ms Louise Wachtmeister
Date summary prepared: 2015-04-22
2. Trade Name
Leksell Gamma Knife® Perfexion™
Device Classification 3.
| Common Name | Product Code | Class | Regulation
Number |
|---------------------------------|--------------|-------|----------------------|
| Leksell Gamma Knife® Perfexion™ | IWB | II | 21 CFR 892.5750 |
4. Predicate Device Identification
| Legally marketed devices to which equivalence is being claimed | 510(k) # |
|---|---|
| TrueBeam, TrueBeam STx, Edge | K140528 |
| Leksell Gamma Knife® Perfexion™ | K133565 |
5. Other relevant submissions
| Devices | 510(k) # |
|---|---|
| Leksell Stereotactic System | K080355 |
| Leksell GammaPlan® PFX | K103093 |
4
ELEKTA INSTRUMENT AB
Dokumentnamn/Name of document
| Utfärdare/Issuer | Ref nr/Dok nr/Ref no/Doc no | Utgåva /Edition | Traditional 510(k) |
|---|---|---|---|
| Matilda Forsberg | -- | -- | |
| Avser/Regarding | Directory | ||
| Leksell Gamma Knife Perfexion | -- | -- |
Device Description 6.
Leksell Gamma Knife Perfexion is a radiosurgery system for use in the stereotactic irradiation of intra-cranial structures. Surgery is achieved by delivering a prescribed dose as one or more shots of ionizing radiation to the exact site of the target.
Based on preoperative radiological examinations, the Leksell Gamma Knife Perfexion unit provides highly accurate external irradiation of intra-cranial structures using collimated beams of ionizing radiation.
Each unit contains 192 sealed sources of Cobalt 60.
Leksell Gamma Knife Perfexion systems consists of several units, physically separated in an Office side in the control room and a Medical side in the treatment room.
- The medical side consists basically of the radiation unit with a patient positioning o system. The system control and power units are placed inside the cover of the radiation unit.
- The office side consists of the operator console with control panel and office computer. 0
Summary of Clinical and Non Clinical testing 7.
Clinical testing was not required to support substantial equivalence with the predicate devices. A risk analysis review was performed to investigate the impact from the new intended use. The conclusion was that the Leksell Gamma Knife® Perfexion is as safe and as effective as its predicate for the new indications.
8. Performance testing
The technical characteristics of the device has not changed compared to the previously cleared Leksell Gamma Knife® Perfexion K133565 and no new performance testing has been made.
9. Intended Use
Leksell Gamma Knife® Perfexion™ is a teletherapy device intended for stereotactic irradiation of head structures ranging from very small target sizes of a few millimeters to several centimeters e.g., metastatic tumors, recurrent glioblastomas, trigeminal neuralgia, medically refractory essential tremor, orbital tumors, ocular tumors, optic nerve tumors, benign diseases (such as meningiomas, vestibular schwannomas, post-surgical
5
ELEKTA INSTRUMENT AB
Dokumentnamn/Name of document
| Traditional 510(k) | ||
|---|---|---|
| Utfärdare/Issuer | Ref nr/Dok nr/Ref no/Doc no | Utgåva /Edition |
| Matilda Forsberg | -- | -- |
| Avser/Regarding | ||
| Leksell Gamma Knife Perfexion | Directory | |
| -- |
pituitary adenomas, craniopharyngioma, hemanqioblastomas, schwannomas, arteriovenous malformations, cavernous malformations, chordomas, glomus tumors, hemangiomas), skull base tumors, head and neck tumors (such as unknown primary of the head and neck, oral cavity, hypopharynx, oropharynx, nasopharynx, sinonasal, salivary gland), and pediatric tumors (such as glioma, ependymoma, pituitary tumors, hemanqioblastoma, craniopharynqioma, meninqioma, metastasis, medulloblastoma, nasopharyngeal tumors, arteriovenous malformations, cavernous malformations, skull base tumors).
The intended patients are adults and children from the age of 2 years and up.
10. Technological Characteristics
This submission does not introduce any modifications to the device. The technical characteristics of the device are the same as the previously cleared Leksell Gamma Knife Perfexion K133565.
11. Substantial Equivalence
The intended use statement for the Leksell Gamma Knife Perfexion is similar to its predicate devices K140258 and K133565. The change to the intended use includes added indications typical to conditions in the head and the neck region that may be treated with stereotactic irradiation of these indications does not affect the safety and effectiveness of the device and fall within the previously cleared indications for use. The functionality and technical characteristics of the device have not changed from the previous submission and are substantially equivalent to the previously cleared device K133565.
The conclusion is that the Leksell Gamma Knife® Perfexion is as safe and as effective as its predicate for the new indications.