← Product Code [FWN](/submissions/EN/subpart-d%E2%80%94prosthetic-devices/FWN) · K962693 # MONTGOMERY RADIOPAQUE LARYNGEAL KEEL (K962693) _Boston Medical Products, Inc. · FWN · Aug 9, 1996 · Ear, Nose, Throat · SESE_ **Canonical URL:** https://fda.innolitics.com/submissions/EN/subpart-d%E2%80%94prosthetic-devices/FWN/K962693 ## Device Facts - **Applicant:** Boston Medical Products, Inc. - **Product Code:** [FWN](/submissions/EN/subpart-d%E2%80%94prosthetic-devices/FWN.md) - **Decision Date:** Aug 9, 1996 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 874.3620 - **Device Class:** Class 2 - **Review Panel:** Ear, Nose, Throat - **Attributes:** Therapeutic ## Indications for Use 1. To repair simple anterior glottic stenosis due to anterior commissure web formation. 2. To prevent anterior glottic stenosis in situations where anterior commissure stenosis is likely to occur (eg, following extralaryngeal or endolaryngeal trauma with loss of anterior commissure). 3. To prevent the anterior glottic stenosis immediately following removal of the Montgomery Laryngeal Stent. ## Device Story Umbrella-shaped laryngeal keel; conforms to anterior commissure anatomy; available in 12mm, 14mm, 16mm sizes. Used by physicians to maintain airway patency and prevent stenosis post-trauma or post-stent removal. Radiopaque material allows visualization. Device provides mechanical support to prevent tissue adhesion during healing. ## Clinical Evidence Bench testing only. Finished device samples passed cytotoxicity testing (Elution Test, USP 23) and were determined to be non-reactive and non-cytotoxic. ## Technological Characteristics Umbrella-shaped laryngeal keel; radiopaque synthetic polymer material; available in 12mm, 14mm, and 16mm sizes. Mechanical device; no energy source or software. ## Regulatory Identification Ear, nose, and throat synthetic polymer material is a device material that is intended to be implanted for use as a space-occupying substance in the reconstructive surgery of the head and neck. The device is used, for example, in augmentation rhinoplasty and in tissue defect closures in the esophagus. The device is shaped and formed by the suregon to conform to the patient's needs. This generic type of device is made of material such as polyamide mesh or foil and porous polyethylene. ## Predicate Devices - Montgomery Laryngeal Keel ## 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} K962693 AUG - 9 1996 # SMDA Summary This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR 807.92. Product: Montgomery Radiopaque Laryngeal Keel Description: The Laryngeal Keel is an umbrella-shaped device designed to conform to the anatomy of the anterior commissure. The keel is available in sizes 12mm, 14mm, and 16mm. ## Indication For Use: 1. To repair simple anterior glottic stenosis due to anterior commissure web formation. 2. To prevent anterior glottic stenosis in situations where anterior commissure stenosis is likely to occur (eg, following extralaryngeal or endolaryngeal trauma with loss of anterior commissure). 3. To prevent the anterior glottic stenosis immediately following removal of the Montgomery Laryngeal Stent. ## Predicate Device: Montgomery Laryngeal Keel. Testing: Finished device samples passed cytotoxicity testing and were determined to be non-reactive and non-cytotoxic based on Elution Test, USP 23. Submitted by: Stuart K. Montgomery, President Date: 7/10/96 {1} DEPARTMENT OF HEALTH & HUMAN SERVICES Public Health Service Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WD66-G609 Silver Spring, MD 20993-0002 Boston Medical Products Mr. Stuart K. Montgomery President 117 Flanders Road Westborough, Massachusetts 01581 Re: K962693 Trade/Device Name: Montgomery Raiopaque Laryngeal Keel Regulation Number: 21 CFR 874.3620 Regulation Name: Ear, Nose, and Throat Synthetic Polymer Material Regulatory Class: Class II Product Code: FWN Dated: July 10, 1996 Received: July 11, 1996 Dear Mr. Montgomery: This letter corrects our substantially equivalent letter of August 9, 1996. 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. JAN 10 2017 {2} Page 2 – Mr. Stuart K. Montgomery 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 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. 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/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, “Misbranding by reference to premarket notification” (21CFR 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, Kesia Alexander for Malvina B. Eydelman, M.D. Director Division of Ophthalmic and Ear, Nose and Throat Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {3} RECEIVED K962693/A1 Boston Medical Products, Inc. 117 Flanders Road Westborough, MA 01581 ATT: Stuart K. Montgomery (508) 898-9300 ext. 240 510(k) Number (if known): K962693 FDA/CDRH/ODE/DMC 17 Jul 96 10 00 510(k) Number (if known): K962693 Device Name: Montgomery Radiopaque Laryngeal Keel Indications For Use: 1. To repair simple anterior glottic stenosis due to anterior commissure web formation. 2. To prevent anterior glottic stenosis in situations where anterior commissure stenosis is likely to occur (eg, following extralaryngeal or endolaryngeal trauma with loss of anterior commissure). 3. To prevent the anterior glottic stenosis immediately following removal of the Montgomery Laryngeal Stent. (PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRN, Office of Device Evaluation (ODE) (Division Sign-Off) Division of Reproductive, Abdominal, ENT, and Radiological Devices 510(k) Number K962693 Prescription Use ☑ (Per 21 CFR 801.109) OR Over-The-Counter Use ☐ (Optional Format 1-2-96) --- **Source:** [https://fda.innolitics.com/submissions/EN/subpart-d%E2%80%94prosthetic-devices/FWN/K962693](https://fda.innolitics.com/submissions/EN/subpart-d%E2%80%94prosthetic-devices/FWN/K962693) **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. 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