← Product Code [HTY](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/HTY) · K152627 # IFS Fixation Scaffold System (K152627) _Metric Medical Devices, Inc. · HTY · Jan 13, 2016 · Orthopedic · SESE_ **Canonical URL:** https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/HTY/K152627 ## Device Facts - **Applicant:** Metric Medical Devices, Inc. - **Product Code:** [HTY](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/HTY.md) - **Decision Date:** Jan 13, 2016 - **Decision:** SESE - **Submission Type:** Traditional - **Regulation:** 21 CFR 888.3040 - **Device Class:** Class 2 - **Review Panel:** Orthopedic - **Attributes:** Therapeutic ## Intended Use The IFS Fixation Scaffold is indicated for small bone fixation, reconstruction and fusion such as inter-digital fusion of fingers and toes. ## Device Story IFS Fixation Scaffold System is a nitinol-based intramedullary implant for small bone fixation; used for inter-digital fusion of fingers and toes. Device consists of a hollow fenestrated cylinder with surface bulges and prongs; utilizes nitinol shape-memory properties to lock into medullary canal and provide compression. Implant is pre-loaded on an insertion instrument; released via knob rotation; instrument acts as depth stop. Upon release at room temperature, device transitions to austenitic state, shortening length and expanding diameter to engage bone. Provides mechanical fixation to facilitate bone healing. Used by surgeons in clinical settings. ## Clinical Evidence Bench testing only. Evaluated corrosion susceptibility (ASTM F2129), contraction/expansion forces, ultimate bending strength, and bone fixation strength. Results showed IFS performance equivalent or superior to predicate devices (K133520, K863734, K123363). ## Technological Characteristics Material: Nitinol. Form factor: Hollow fenestrated cylinder (2.5-4.5 mm diameter, 21-27 mm length). Principle: Shape-memory alloy transition to austenitic state at room temperature for bone fixation/compression. Features: Surface bulges and prongs for bone locking. Connectivity: None. Sterilization: Not specified. Standards: ASTM F2129 for corrosion testing. ## Regulatory Identification A smooth or threaded metallic bone fixation fastener is a device intended to be implanted that consists of a stiff wire segment or rod made of alloys, such as cobalt-chromium-molybdenum and stainless steel, and that may be smooth on the outside, fully or partially threaded, straight or U-shaped; and may be either blunt pointed, sharp pointed, or have a formed, slotted head on the end. It may be used for fixation of bone fractures, for bone reconstructions, as a guide pin for insertion of other implants, or it may be implanted through the skin so that a pulling force (traction) may be applied to the skeletal system. ## Predicate Devices - Intramedullary implants ([K133520](/device/K133520.md)) - K-wires ([K863734](/device/K863734.md)) - Bone staple ([K123363](/device/K123363.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}------------------------------------------------ Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is a stylized image of three human profiles facing to the right, stacked one behind the other. January 13, 2016 Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002 Metric Medical Devices, Incorporated W.Casey Fox, Ph.D., P.E. President 846 Silver Springs Helotes, Texas 78023 Re: K152627 Trade/Device Name: IFS Fixation Scaffold System Regulation Number: 21 CFR 888.3040 Regulation Name: Smooth or threaded metallic bone fixation fastener Regulatory Class: Class II Product Code: HTY Dated: December 8, 2015 Received: December 14, 2015 Dear Dr. Fox: 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 Parts 801); medical device reporting (reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set {1}------------------------------------------------ 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, # Mark N. Melkerson -S Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health Enclosure {2}------------------------------------------------ ### Indications For Use ### Indications For Use ______________________________________________________________________________________________________________________________________________________________________________ K152627 510(k) Number (if Known): Device Name: Intramedullary Fixation Scaffold (IFS) System Indications for use: The IFS Fixation Scaffold is indicated for small bone fixation, reconstruction and fusion such as inter-digital fusion of fingers and toes. Prescription Use X Over-The-Counter AND/OR Use (Per 21 CFR 801 Subpart D) (21 CFR 801 Subpart C) (PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED) Concurrence of CDRH, Office of Device Evaluation (ODE) {3}------------------------------------------------ ## Appendix I: 510(k) Summary of Safety and Effectiveness 510(k) Summary As required by 21 CFR 807.92: Name of Sponsor: Metric Medical Devices, Inc., 846 Silver Springs, Helotes, TX, 78023 Contact: W. Casey Fox, Ph.D., P.E., President 12/3/2015 Date Prepared: Proprietary Name: IFS Fixation Scaffold System Classification Name: Pin, Fixation, Bone Device classification: Class II per 21 CFR 888.3040 Product Device Code: HTY Substantial Equivalence: The IFS is substantially equivalent to legally marketed intramedullary implants (K133520), k-wires (K863734) and bone staple (K123363) in indications for use, material, design and function. Any minor differences between these devices or their performance do not raise any questions of safety and effectiveness. The IFS Fixation Scaffold is indicated for small bone fixation, Indications for use: reconstruction and fusion such as inter-digital fusion of fingers and toes. Performance Data: Corrosion susceptibility, implant contraction and expansion forces, ultimate strength, amount of shape change and bone fixation strength was measured and compared between the IFS and three predicate devices. Corrosion testing per ASTM F2129 "Standard Test Method for Conducting Cyclic Potentiodynamic Polarization Measurements to Determine the Corrosion Susceptibility of Small Implant Devices" was performed. The corrosion behavior of the IFS was equivalent or better than the predicate device to which it was compared and presented high corrosion breakdown potentials for all IFS devices tested. IFS contraction and expansion forces, ultimate strength and bone fixation strength were measured for the IFS and predicate devices. Contraction tests showed that the IFS contraction force causing bone segments to be put into compression was equivalent to or less than the 9x9 mm and 11x10 mm bone staple implants of K123363 and the expansion force causing retention in the medullary canal was equivalent or superior to the K133520 predicate device. Ultimate strength in bending was measured for the IFS. K133520 and K863734 and the IFS was found equivalent or superior in strength to the predicate devices tested. Bone fixation strength was measured for the IFS, K 133520 and K863734 and the IFS was found equivalent or superior to the predicate device. Device Description: The IFS is a hollow fenestrated cylinder fabricated from nitinol with a section that increases the implants diameter to lock into the medullary compartment of bone while shortening its length. The nitinol's transition temperatures are set so that the material is in the austenitic state when released at room temperature. Features on the cylinder's surface, such as bulges and prongs, lock into bone. {4}------------------------------------------------ The IFS is pre-loaded onto an insertion instrument and held elongated in position by a lock plate. During insertion, the IFS is released by turning a knob on its instrument while the lock plate both releases the IFS and limits the depth of implant insertion. The IFS implants range in diameter from 2.5 to 4.5 mm and up to 9.3 mm when expanded and range in length from 21 to 27 mm depending on size and extent of contraction. ### Comparison of Technical Characteristics with the Predicate Device: The IFS and predicates K123363 and K133520 are fabricated from nitinol. The IFS and K123363 change shape at room temperature and K133420 changes at body temperature. The IFS and predicate K123363 have essentially the same manufacturing thermal history and surface treatment. The K863734 predicate is fabricated from stainless steel. The IFS and K123363 both change shape to pull bone together. The IFS shortens its cylindrical length and the K123363 brings its legs together and shortens its bridge to pull bone segments together and apply fixation forces to bone during healing. The fixation force of the IFS is in the same range as a small K123363 implant. The IFS and K133520 both have sections that expand to lock into the medullary canal of bone. Features on the surface of these devices include barbs or prongs for locking into bone. The expansion force of the IFS is within the range of expansion forces of the predicate K133520. The IFS and predicate K123363 and K133520 implants are held with an instrument during insertion. The IFS and K123363 instruments are fabricated from the same material. The instruments hold these implants from changing shape. When released from the instrument the shape changing features of the implants are enabled and the bone locking features engage bone. The IFS and K133520 instruments also act as a depth stop. The K863734 predicate device is implanted with a drill motor, locks due to surface friction and interference, is round in cross section, solid, and has a trocar tip for cutting bone. The IFS, K133520, K123363 and K863734 are small devices and similar in size: the IFS is 2.5 to 4.5 mm in diameter and up to 9.3 mm when expanded and its length ranges from 21 to 27 mm; the K 133520 device ranges in width from 4 mm to 7 mm when expanded and its length ranges12 to 25 mm; the K123363 device ranges in bridge and leg length from 9 mm to 20 mm; and the K863734 ranges in diameters of 1 mm to 2 mm and lengths exceeding several inches. --- **Source:** [https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/HTY/K152627](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/HTY/K152627) **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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