K Number
K072171
Device Name
GATECT-RT
Manufacturer
Date Cleared
2007-10-01

(56 days)

Product Code
Regulation Number
892.5050
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The GateCT-RT system is used to obtain tracking of the subject's respiratory pattern for respiratory synchronized image acquisition, and radiation therapy treatment. It can be also used, either independently or in conjunction with Vision RT's AlignRT (K052682), to monitor the patient position during the image acquisition, simulation and treatment and to disable the radiation beam automatically.
Device Description
The GateCT-RT device is an attachment to radiation therapy treatment systems, simulators and image acquisition devices used for diagnostics and radiation therapy. The GateCT-RT system senses and records the respiratory motion and respiratory state of a patient using real time 3D surface tracking of the patient without the need of any externally positioned markers. Regions to be tracked are selected remotely in a location indicated by the physician on the GateCT-RT workstation. These may be automatically detected during subsequent sessions. GateCT tracks the patient's breathing CT acquisition in order to facilitate 4DCT reconstruction. GateRT tracks respiratory motion during treatment or imaging and automatically disables the beam when the breathing signal moves outside the user defined gating window. GateCT-RT may also be employed within the monitoring mode of AlignRT to disable the beam automatically if any patient movement is detected which exceeds a user defined tolerance. The Vision RT camera unit is connected to a PC workstation and is used for surface tracking of the patient.
More Information

No
The description focuses on real-time 3D surface tracking and user-defined parameters for gating, with no mention of AI, ML, or related concepts. The "automatically detected" regions in subsequent sessions could potentially involve some form of pattern recognition, but the description does not explicitly state or imply the use of AI/ML for this function.

No
The device is used to monitor and track respiratory patterns and patient position during image acquisition, simulation, and radiation therapy, and to disable the radiation beam automatically. It does not exert a therapeutic effect on the patient.

No

The device is described as "an attachment to radiation therapy treatment systems, simulators and image acquisition devices used for diagnostics and radiation therapy" and its primary functions are to "obtain tracking of the subject's respiratory pattern for respiratory synchronized image acquisition, and radiation therapy treatment" and "to monitor the patient position during the image acquisition, simulation and treatment and to disable the radiation beam automatically." While it mentions use with "diagnostics" devices, its function is for monitoring and controlling the radiation beam, not for diagnosing a medical condition.

No

The device description explicitly states that the GateCT-RT device is an "attachment to radiation therapy treatment systems, simulators and image acquisition devices" and that it uses a "Vision RT camera unit" connected to a PC workstation for surface tracking. This indicates the device includes hardware components (the camera unit and potentially other attachments) in addition to software.

Based on the provided information, the GateCT-RT system is not an In Vitro Diagnostic (IVD) device.

Here's why:

  • IVD Definition: In Vitro Diagnostics are devices intended for use in the collection, preparation, and examination of specimens taken from the human body (such as blood, urine, or tissue) to provide information for the diagnosis, treatment, or prevention of disease.
  • GateCT-RT Function: The GateCT-RT system operates by tracking the external surface of the patient's body (real time 3D surface tracking) to monitor respiratory patterns and patient position. It does not involve the collection or analysis of any biological specimens from the patient.
  • Intended Use: The intended use is for respiratory synchronized image acquisition and radiation therapy treatment, as well as patient position monitoring during these procedures. These are all external, non-invasive processes.

Therefore, the GateCT-RT system falls under the category of medical devices used for imaging and therapy guidance, not In Vitro Diagnostics.

N/A

Intended Use / Indications for Use

The GateCT-RT system is used to obtain tracking of the subject's respiratory pattern for respiratory synchronized image acquisition, and radiation therapy treatment. It can be also used, either independently or in conjunction with Vision RT's AlignRT (K052682), to monitor the patient position during the image acquisition, simulation and treatment and to disable the radiation beam automatically.

Product codes (comma separated list FDA assigned to the subject device)

IYE

Device Description

The GateCT-RT device is an attachment to radiation therapy treatment systems, simulators and image acquisition devices used for diagnostics and radiation therapy. The GateCT-RT system senses and records the respiratory motion and respiratory state of a patient using real time 3D surface tracking of the patient without the need of any externally positioned markers. Regions to be tracked are selected remotely in a location indicated by the physician on the GateCT-RT workstation. These may be automatically detected during subsequent sessions. GateCT tracks the patient's breathing CT acquisition in order to facilitate 4DCT reconstruction. GateRT tracks respiratory motion during treatment or imaging and automatically disables the beam when the breathing signal moves outside the user defined gating window. GateCT-RT may also be employed within the monitoring mode of AlignRT to disable the beam automatically if any patient movement is detected which exceeds a user defined tolerance. The Vision RT camera unit is connected to a PC workstation and is used for surface tracking of the patient.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Not Found

Indicated Patient Age Range

Not Found

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)

Not Found

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s): If the device was cleared using the 510(k) pathway, identify the Predicate Device(s) K/DEN number used to claim substantial equivalence and list them here in a comma separated list exactly as they appear in the text. List the primary predicate first in the list.

K063270, K052682

Reference Device(s): Identify the Reference Device(s) K/DEN number and list them here in a comma separated list exactly as they appear in the text.

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information for the subject device only (e.g. presence / absence, what scope was granted / cleared under the PCCP, any restrictions, etc).

Not Found

§ 892.5050 Medical charged-particle radiation therapy system.

(a)
Identification. A medical charged-particle radiation therapy system is a device that produces by acceleration high energy charged particles (e.g., electrons and protons) intended for use in radiation therapy. This generic type of device may include signal analysis and display equipment, patient and equipment supports, treatment planning computer programs, component parts, and accessories.(b)
Classification. Class II. When intended for use as a quality control system, the film dosimetry system (film scanning system) included as an accessory to the device described in paragraph (a) of this section, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.

0

510(k) Summary

The following information is provided following the format of 21 CFR §807.92 for the GateCT-RT Respiratory Gating System.

1. Submitter: Vision RT Ltd
Daws House
33-35 Daws Lane
London NW7 4SD
United Kingdom
Contact Name: Dr Norman Smith
Phone: +44 20 89066620
Fax: +44 20 89066621
Email: nsmith@visionrt.com
Date summary was prepared: 26th July 2007

OCT 1 2007

    1. Name of the Device: GateCT-RT GateCT, GateRT Trade/Proprietary Name: Common or Usual Name: Respiratory Gating System Classification Name: Medical Charged-particle radiation therapy system accessory.
  1. Predicate Devices: Varian RPM Respiratory Gating (K063270); Vision RT's AlignRT (K052682).

  2. Description of the Device: The GateCT-RT device is an attachment to radiation therapy treatment systems, simulators and image acquisition devices used for diagnostics and radiation therapy. The GateCT-RT system senses and records the respiratory motion and respiratory state of a patient using real time 3D surface tracking of the patient without the need of any externally positioned markers. Regions to be tracked are selected remotely in a location indicated by the physician on the GateCT-RT workstation. These may be automatically detected during subsequent sessions. GateCT tracks the patient's breathing CT acquisition in order to facilitate 4DCT reconstruction. GateRT tracks respiratory motion during treatment or imaging and automatically disables the beam when the breathing signal moves outside the user defined gating window. GateCT-RT may also be employed within the monitoring mode of AlignRT to disable the beam automatically if any patient movement is detected which exceeds a user defined tolerance. The Vision RT camera unit is connected to a PC workstation and is used for surface tracking of the patient.

  3. Intended Use Statement: The GateCT-RT system is used to obtain tracking of the subject's respiratory pattern for respiratory synchronized image acquisition, and radiation therapy treatment. It can be also used, either independently or in conjunction with Vision RT's AlignRT (K052682), to monitor the patient position during the image acquisition, simulation and treatment and to disable the radiation beam automatically.

  4. Summary of the Technological Characteristics: The Substantial Equivalence Comparison Chart provides a comparison of the technological characteristics to those of the predicate devices. The comparison chart demonstrates that the device is substantially equivalent to its predicate devices cited in the table. The chart is located in Tab 8 of the submission.

Vision RT Limited DAWS HOUSE 33-35 DAWS LANE LONDON NW7 4SD T +44 (0)20 8906 6620 F +44 (0)20 8906 6621 www.visionrt.com

1

Image /page/1/Picture/0 description: The image is a black and white circular logo. The logo contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter of the circle. In the center of the circle is a stylized image of three lines that resemble a person.

DEPARTMENT OF HEALTH & HUMAN SERVICES

Food and Drug Administration 9200 Corporate Blvd. Rockville MD 20850

Vision RT Ltd. % Mr. Robert J. Morton, M.S. Quality and Regulatory Services. Inc. 1244 Fairway Valley Court LINCOLN CA 95648

OCT 1 2007

Re: K072171

Trade/Device Name: GateCT-RT Regulation Number: 21 CFR 892.5050 Regulation Name: Medical charged-particle radiation therapy system Regulatory Class: II Product*Code: IYE Dated: August 1, 2007 Received: August 6, 2007

Dear Mr. Morton:

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.

If your device is classified (see above) into either class II (Special Controls) or 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 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

Image /page/1/Picture/10 description: The image shows a logo with the text "1906-2006" at the top and "Centennial" in the middle. Below the logo, the text "Proloting and Promoting Public Health" is written in a decorative font. The logo appears to be a commemorative emblem, possibly for an organization's 100th anniversary.

2

Page 2 -

Enclosure

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); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (2) CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

This letter will allow you to begin marketing your device as described in your Section 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), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter:

21 CFR 876.xxx(Gastroenterology/Renal/Urology)240-276-0115
21 CFR 884.xxx(Obstetrics/Gynecology)240-276-0115
21 CFR 894.xxx(Radiology)240-276-0120
Other240-276-0100

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (240) 276-3150

or at its Internet address http://www.fda.gov/cdrl/industry/support/index.html.

Sincerely vours.

Nancy C. Hogdon

Nancy C. Brogdon Director, Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health

3

Indications for Use

510(k) Number (if known): _

Device Name:

GateCT-RT

Indications for Use:

The GateCT-RT system is used to obtain tracking of the subject's respiratory pattern for respiratory synchronized image acquisition, and radiation therapy treatment. It can be also used, either independently or in conjunction with Vision RT's AlignRT (K052682), to monitor the patient position during the image acquisition, simulation and treatment and to disable the radiation beam automatically.

Prescription Use _____________________________________________________________________________________________________________________________________________________________ (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)

Arqui To Nhan

(Division Sian-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number