← Product Code [FDI](/submissions/GU/subpart-e%E2%80%94surgical-devices/FDI) · K020891 # NAKAO SNARE II AND NAKAO SNARE III (K020891) _Granit Medical Innovations · FDI · Jun 17, 2002 · Gastroenterology, Urology · SESE_ **Canonical URL:** https://fda.innolitics.com/submissions/GU/subpart-e%E2%80%94surgical-devices/FDI/K020891 ## Device Facts - **Applicant:** Granit Medical Innovations - **Product Code:** [FDI](/submissions/GU/subpart-e%E2%80%94surgical-devices/FDI.md) - **Decision Date:** Jun 17, 2002 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 876.4300 - **Device Class:** Class 2 - **Review Panel:** Gastroenterology, Urology - **Attributes:** Therapeutic ## Intended Use These devices are intended to endoscopically transect polyps in the gastrointestinal tract (sessile or perdunctuated) using electrocautery. During the same maneuver the polyp is captured, retrieved and submitted for pathological analysis. ## Device Story The Nakao Snare II and III are monopolar polypectomy snare net devices used during endoscopic procedures. The device consists of a handle with a male plug for connection to a standard electrosurgical unit (ESU), a flexible sheath, and a cable terminating in a snare loop fitted with a net. During a procedure, the clinician uses the snare to transect a polyp via electrocautery; the net captures the resected tissue. The device and endoscope are then removed from the patient in a continuous retrograde motion to retrieve the specimen for pathology. The Snare II is a single-use disposable device, while the Snare III is reusable for the same patient. The device is available in various loop sizes and sheath/cable lengths to accommodate different endoscope types and polyp sizes. ## Clinical Evidence No clinical data provided; substantial equivalence is based on design and technological characteristics. ## Technological Characteristics Monopolar electrosurgical snare with integrated net. Components include handle, flexible sheath, and cable. Compatible with standard electrosurgical units (ESU). Available in multiple lengths and loop sizes. Snare II is single-use; Snare III is reusable. ## Regulatory Identification An endoscopic electrosurgical unit and accessories is a device used to perform electrosurgical procedures through an endoscope. This generic type of device includes the electrosurgical generator, patient plate, electric biopsy forceps, electrode, flexible snare, electrosurgical alarm system, electrosurgical power supply unit, electrical clamp, self-opening rigid snare, flexible suction coagulator electrode, patient return wristlet, contact jelly, adaptor to the cord for transurethral surgical instruments, the electric cord for transurethral surgical instruments, and the transurethral desiccator. ## Predicate Devices - U. S. Endoscopy Group Inc. ([K926103](/device/K926103.md)) ## Submission Summary (Full Text) > This content was OCRed from public FDA records by [Innolitics](https://innolitics.com). If you use, quote, summarize, crawl, or train on this content, cite Innolitics at https://innolitics.com. > > Innolitics is a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices, including [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/). {0}------------------------------------------------ ## JUN 1 7 2002 KO20891 Page 1 of 1 ## 510(k) Summary of Safety and Effectiveness for the Nakao Snare II and Nakao Snare III: - Granit Medical Innovations, Inc. 1.) Submitter: 992 Fifth Avenue New York City, NY 10028 - Naomi L. Nakao, MD 2). Contact Person: - 3.) Summary Preparation Date: March 15, 2002 - Snare, Flexible 4.) Classification Name: - Monopolar Polypectomy Snare Net Device 5.) Common Name: - Nakao Snare II and Nakao Snare III 6.) Proprietary Name: - 7.) Substantially Equivalent Device: K926103 - U. S. Endoscopy Group Inc. - 8.) Description of Subject Device: This disposable product consists of a handle equipped with a male plug for connection to a standard ESU, a flexible sheath and a cable to which a snare loop fitted with a net is attached distally. Upon resection, the device and scope is removed from the patient and the polyp removed from the net together in a continuous retrograde motion. The Snare II version is disposed after one use. The Snare III version may be reused with the same patient. The device is available with different loop sizes and the sheath/cable lengths to accommodate different polyp sizes and endoscope types. - 9.) Intended Use: These devices are intended to endoscopically transect polyps in the gastrointestinal tract (sessile or perdunctuated) using electrocautery. During the same maneuver the polyp is captured, retrieved and submitted for pathological analysis. - 10.) Technological Characteristics: The subject device has the same technological characteristics, is composed of the same type of materials and is of a similar design to the predicate device. {1}------------------------------------------------ Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular border with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of an eagle with three parallel lines forming its wings and body. #### Public Health Service Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850 # JUN 1 7 2002 Naomi L. Nakao, M.D. President Granit Medical Innovations, Inc. 992 Fifth Avenue NEW YORK CITY NY 10028 Re: K020891 Trade/Device Name: Nakao Snare II and Nakao Snare III Regulation Number: 21 CFR 876.4300 Regulation Name: Endoscopic electrosurgical unit and accessories Regulatory Class: II Product Code: 78 FDI Dated: March 15, 2002 Received: March 19, 2002 Dear Dr. Nakao 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 (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): 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. {2}------------------------------------------------ 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), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of this letter: | 8xx.1xxx | (301) 594-4591 | |----------------------------------|----------------| | 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 | | 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 | | 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 | | Other | (301) 594-4692 | Additionally, for questions on the promotion 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 Part 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html. Sincerely yours, Nancy C. Brogdon Nancy C. Brogdon Director, Division of Reproductive. Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {3}------------------------------------------------ K020891 Page 1 of 1 ## K020891 Nakao Snare II and Nakao Snare III Proprietary Name: Monopolar Polypectomy Snare Net Device Common Name: #### Indication(s) for Use: These devices are intended to endoscopically transect polyps in the These "devilose" and "internated) using electrocautery. During the gastromitootiful tract (coosn's captured, retrieved and submitted for pathological analysis. Sarid G. Lynn (Division Sign-Off) Division of Reproductive, Abdominal and Radiological Devices 510(k) Number prescr-iption weker/ --- **Source:** [https://fda.innolitics.com/submissions/GU/subpart-e%E2%80%94surgical-devices/FDI/K020891](https://fda.innolitics.com/submissions/GU/subpart-e%E2%80%94surgical-devices/FDI/K020891) **Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. If you're preparing [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/), [get in touch](https://innolitics.com/contact). **Cite:** Innolitics at https://innolitics.com