RITA SYSTEMS

K040989 · Rita Medical Systems · GEI · Apr 28, 2004 · General, Plastic Surgery

Device Facts

• Record ID: K040989
• Device Name: RITA SYSTEMS
• Applicant: Rita Medical Systems
• Product Code: GEI · General, Plastic Surgery
• Decision Date: Apr 28, 2004
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 878.4400
• Device Class: Class 2
• Attributes: Therapeutic, 3rd-Party Reviewed

Intended Use

The RITA® System (RF generator and electrosurgical devices) supplies energy for use in electrosurgery and is indicated for use in percutaneous, laparoscopic, or intraoperative coagulation and ablation of soft tissue, including the partial or complete ablation of non-resectable liver lesions and the palliation of pain associated with metastatic lesions involving bone in patients who have failed or are not candidates for standard pain therapy.

Device Story

RITA System provides RF energy for soft tissue ablation/coagulation. Components: RF generator, deployable electrode device (with/without thermocouples), optional infusion pump, tubing kit, main cable, dispersive electrode, foot pedal. Used in percutaneous, laparoscopic, or intraoperative settings by clinicians. Generator monitors parameters (temperature, power, time); user sets ablation mode (constant power, constant temperature, infusion, track ablation). Infusion mode coordinates saline delivery via pump. System automatically stops energy/fluid delivery if parameters exceed limits or ablation completes. Real-time monitoring via LCD display. Benefits include targeted tissue destruction and pain palliation.

Clinical Evidence

Bench testing only. Evidence includes design verification, software validation, ablation performance testing, and sterilization validation.

Technological Characteristics

RF electrosurgical generator; deployable electrodes with optional thermocouples; saline infusion pump integration; RS-232 connectivity; LCD interface; foot pedal control; dispersive electrode return path; medical grade power supply.

Indications for Use

Indicated for percutaneous, laparoscopic, or intraoperative coagulation and ablation of soft tissue, specifically non-resectable liver lesions and palliation of pain from metastatic bone lesions in patients failing or ineligible for standard pain therapy.

Regulatory Classification

Identification

An electrosurgical cutting and coagulation device and accessories is a device intended to remove tissue and control bleeding by use of high-frequency electrical current.

Predicate Devices

• RITA Medical Systems Inc. - RITA System

Submission Summary (Full Text)

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## APR 2 8 2004

## 510(K) SUMMARY OF SAFETY AND EFFECTIVENESS
COLL - ----------------------------------------------------------------------------------------------------------------------------

| Applicant | RITA Medical Systems, Inc.<br>967 N. Shoreline Blvd.<br>Mountain View, CA 94043 |
|--------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Contact Person | Darrin Uecker |
| Telephone Number: | [phone] |
| Fax Number: | [phone] |
| General<br>Provisions | Trade Name: RITA® System<br>Common/Classification Name: Electrosurgical cutting and coagulation device |
| Name of<br>Predicate | RITA Medical Systems Inc. - RITA System |
| Classification | Class II |
| Performance<br>Standards | Performance standards have not been established by the FDA under section 514 of<br>the Food, Drug and Cosmetic Act. |
| Intended Use | The RITA® System (RF generator and electrosurgical devices) supplies energy for<br>use in electrosurgery and is indicated for use in percutaneous, laparoscopic, or<br>intraoperative coagulation and ablation of soft tissue, including the partial or<br>complete ablation of non-resectable liver lesions and the palliation of pain<br>associated with metastatic lesions involving bone in patients who have failed or are<br>not candidates for standard pain therapy. |
| Device | The RITA System consists of the following components: |
| Description | RF Generator: Provides RF energy to the Device through the Main Cable. |
| | Disposable Electrode ("the Device"): Consists of a number of deployable<br>electrodes. Some or all are equipped with a thermocouple, depending on the<br>model of the Device. Some Devices are used with saline infusion ("Infusion<br>Devices") and require the use of a pump. |
| | Infusion Pump: When using the RF Generator with the Infusion Devices, an off-<br>the-shelf market-cleared infusion pump or a RITA Pump is used to deliver saline<br>through the Infusion Device during ablation. In the off-the-shelf pump, syringes<br>are connected to the Infusion Device and loaded into the Infusion Pump. In the<br>RITA Pump, a Tubing Kit is connected to the Infusion Device and loaded into the<br>RITA Pump. The RF Generator is connected to the Infusion Pump via an RS-232<br>cable. |
| | Tubing Kit: The tubing kit is designed to load into the pump head from the front<br>of the pump. On the proximal end of the tubing-set there is a PVC Bag Spike<br>fitting that allows the tubing to be attached to an IV bag. The Bag Spike fitting is<br>attached to a single length of tubing that is connected to a splitter fitting that splits<br>the single tubing into 5 separate tubes. The 5 tubes are held together with clips<br>that allow the tubes to be uniformly loaded into the pump head. The distal end on<br>the tubing-set has 5 female luers to attach to the Infusible devices. |
| | Main Cable: Connects the Device to the RF Generator. |

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Dispersive Electrode: Provides the return path for the RF energy applied by the Device. Depending on the model, the dispersive electrode may be equipped with thermocouples to measure skin temperature at the dispersive pad. Dispersive pads with temperature sensing capabilities are connected to the RF Generator at the dispersive electrode connection and at the Aux port.

Power Cord: A medical grade line cord that provides AC power to the RF Generator.

Foot Pedal: The Foot Pedal is connected to the front of the RF Generator. The Foot Pedal starts and stops the RF energy delivery when the RF Generator is in "READY" mode.

Device Description (cont.)

To use the system, the RF Generator is plugged into the wall outlet via the Power Cord. The electrosurgical device is connected to the RF Generator via the Main Cable. The Dispersive Electrode is placed on the appropriate location of the body and is connected to its port on the RF Generator. If a pump is used, it is connected to scrial port B of the RF Generator. Once the system is successfully powered up, the user can set the parameters of the ablation such as the mode of operation, the ablation time, the target temperature, and the power delivery level. One mode of operation, purge, is used to communicate with an infusion pump to prime the system. There are four modes of operation for RF energy delivery: constant power, constant temperature, infusion mode, and track ablation. In the infusion mode, the RF Generator communicates with the infusion pump to set and adjust the infusion With the electrosurgical device placed in the tissue to be ablated and its rate. electrodes deployed, RF power can be turned on. The system parameters are continuously monitored and displayed on the RF Generator. If the measured parameters arc outside the acceptable limits, the RF energy delivery and fluid delivery (if in infusion mode) automatically stops and a message appears on the liquid crystal display (LCD). The RF energy delivery and fluid delivery (if in infusion mode) also automatically ceases once the ablation is completed based on the initial user-defined parameters. RF energy can also be stopped at any point by pressing the RF on/off switch. Fluid delivery can also be stopped at any point by pressing the pump on/off switch.

Performance Data

The RITA System is subjected to design verification, software validation, ablation performance, and sterilization validation testing.

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DEPARTMENT OF HEALTH & HUMAN SERVICES

Image /page/2/Picture/1 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 an abstract image of an eagle or bird-like figure with three stylized wing or feather shapes.

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

'APR 2 8 2004

RITA Medical Systems, Inc. c/o Mr. Morten Christensen Underwriters Laboratories, Inc. 1655 Scott Boulevard Santa Clara, California 95050

Re: K040989

Trade/Device Name: RITA System Regulation Number: 21 CFR 878.4400 Regulation Name: Electrosurgical cutting and coagulation device and accessories Regulatory Class: II Product Codc: GEI Dated: April 14, 2004 Received: April 16, 2004

Dear Mr. Christensen:

We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your be determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate for two stated of to May 28, 1976, the enactment date of the Medical Device Amendments, or to conimered pror to they 20, 2011 11:47 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 r ou may a news 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 (PMA), 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.

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a dctermination 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); labcling (21 CFR Part 801); 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.

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Page 2 - Mr. Morten Christensen

This letter will allow you to begin marketing your device as described in your Section 510(k) I mis letter will anow you to organization of substantial equivalence of your device to a legally premaince noticate 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 if you desire specific at [phone]. 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 other general motimational and Consumer Assistance at its toll-free number [phone] or [phone] or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html

Sincerely yours,

Miriam C. Provost

Colia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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## Indications for Use

510(k) Number (if known): _ K 040989

Device Name:

Indications for Use:

The RITA® System (RF generator and electrosurgical devices) supplies energy for use in electrosurgery and is indicated for use in percutaneous, laparoscopic, or intraoperative coagulation and ablation of soft tissue, including:

- · the partial or complete ablation of non-resectable liver lesions and
- the palliation of pain associated with metastatic lesions involving bone in patients who have failed or are not candidates for standard pain therapy.

Prescription Use
(Part 21 CFR 801 Subpart D)

AND/OR

Over-The-Counter Use _ (21 CFR 807 Subpart C)

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

Concurrence of CDRH, Office of Device Evaluation (ODE)

Muriam C. Provost

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(Division Sign-Off) Division of General, Restorative, and Neurological Devices

510(k) Number_ Ko40989