K974345 · Mitek Products · MBI · Feb 13, 1998 · Orthopedic
Device Facts
Record ID
K974345
Device Name
MITEK KNOTLESS ANCHOR
Applicant
Mitek Products
Product Code
MBI · Orthopedic
Decision Date
Feb 13, 1998
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3040
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
To lock into bone and hold suture and tissue in apposition during the healing process
Device Story
Mitek Knotless Anchor is a bone fixation device designed to hold soft tissue in apposition to bone during healing. The device consists of a titanium body with nitinol arcs. It is implanted into bone to secure sutures, which in turn hold the tissue. Unlike the predicate Mitek GII, which requires manual knot-tying to secure tissue, the Knotless Anchor utilizes a looped suture mechanism to achieve apposition. The device is intended for use by surgeons in orthopedic procedures involving the shoulder, ankle, foot, elbow, and knee. By eliminating the need for manual knots, the device simplifies the tissue apposition process while maintaining equivalent pull-out strength to the predicate device.
Clinical Evidence
Bench testing only. Pull-out failure force testing in pig femora showed the Mitek GII had a mean force of 55.63 lbs (SD 17.12) and the Knotless Anchor had a mean force of 60.96 lbs (SD 14.29), demonstrating statistically equivalent strength.
Technological Characteristics
Titanium body and Nitinol arcs. Dimensions: 0.430" length by 0.109" width with two 0.026" by 85-degree arcs. Mechanical fixation device.
Indications for Use
Indicated for shoulder (Bankart repair, SLAP lesion repair, acromio-clavicular separation, rotator cuff repair, capsule shift/capsulo-labral reconstruction, biceps tenodesis, deltoid repair), ankle (lateral/medial instability, Achilles tendon repair/reconstruction, midfoot reconstruction), foot (Hallux Valgus reconstruction), elbow (Tennis Elbow repair, biceps tendon reattachment), and knee (extra capsular repairs, reattachment of medial/lateral collateral/posterior oblique ligaments or joint capsule to tibia, joint capsule closure to anterior proximal tibia, extra capsular reconstruction, ITB tenodesis, patellar ligament and tendon avulsions). Prescription use only.
Regulatory Classification
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
Mitek GII
Submission Summary (Full Text)
{0}
Mitek PRODUCTS
FEB 13 1998
ETHICON, INC.
a Johnson & Johnson company
60 GLACIER DRIVE • WESTWOOD • MA • 02090
PHONE (781) 251-2700 • TOLL-FREE (800) 356-4835 • FAX (781) 461-9166
510(k) SUMMARY FOR K974345
Page 1 of 2
SUBMITTER
NAME: Mitek Surgical Products, Inc.
ADDRESS: 60 Glacier Drive, Westwood, MA 02090
TEL#: 781-251-2700
CONTACT: Robert Zoletti, Manager, Regulatory Affairs
DATE: November 19, 1997
NAME OF DEVICE
CLASSIFICATION NAME: Staple, fixation, bone & soft tissue
COMMON NAME: Device for holding soft tissue in apposition
PROPRIETARY NAME: Mitek Knotless Anchor
PREDICATE DEVICE
Mitek GII
DESCRIPTION OF DEVICE
FUNCTION
Hold soft tissue in apposition during healing process
DEVICE DESIGN
The device is 0.430" lg by 0.109" wide with with two 0.026" by 85 degree arcs.
MATERIALS USED
Titanium body and Nitinol arcs
INTENDED USE
To lock into bone and hold suture and tissue in apposition during the healing process
COMPARISON TO PREDICATE DEVICE
Identical intended use with variance in suture handling and knotless function. Made from identical materials. Patient preparation is same with the exception of the tissue apposition process, i.e., the knotless anchor uses a looped version of suture to hold the tissue in place and the GII uses knots to perform the tissue apposition.
DESCRIPTION OF NON CLINICAL TESTS
Bench top tests showed statistically equivalent strength between the knotless and GII anchors. The pull out failure force from pig femora for : Mitek GII Anchor was 55.63lbs, SD 17.12, and for Knotless Anchor was 60.96lbs, SD 14.29.
003006
{1}
DESCRIPTION OF CLINICAL TESTS
Clinical tests for the Mitek anchors were done in accordance with IDE G880026.
CONCLUSIONS FROM TESTS
The Mitek Anchor was found safe and effective by FDA in K892126.
000007
{2}
DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration
9200 Corporate Boulevard
Rockville MD 20850
FEB 13 1998
Mr. Edward F. Kent
Vice President
Regulatory Affairs
Mitek Products
60 Glacier Drive
Westwood, Massachusetts 02090
Re: K974345
Trade Name: Mitek Knotless Anchor
Regulatory Class: II
Product Code: MBI
Dated: November 19, 1997
Received: November 19, 1997
Dear Mr. Kent:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). 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 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (QS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
{3}
Page 2 - Mr. Edward F. Kent
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 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4659. 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 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sincerely yours,

Celia M. Witten, Ph.D., M.D.
Director
Division of General and Restorative Devices
Office of Device Evaluation
Center for Devices and Radiological Health
Enclosure
{4}
Page 1 of 1
510(k) Number (if known): K974345
Device Name: Mitek Knotless Anchor
Indications For Use:
Shoulder: Bankart repairSLAP Lesion repair
acromio-clavicular separation, rotator cuff repair, capsule shift/capsulo-labral reconstruction, biceps tenodesis, deltoid repair.
Ankle: Lateral instability, medial instability, Achilles tendon repair/reconstruction, midfoot reconstruction.
Foot: Hallux Valgus reconstruction.
Elbow: Tennis Elbow repair, biceps tendon reattachment.
Knee: Extra capsular repairs, Reattachment of: medial collateral ligament, lateral collateral ligament, posterior oblique ligament, or joint capsule to tibia and joint capsult closure to anterior proximal tibia, extra capsular reconstruction, ITBtenodesis, patellar ligament and tendon avulsions
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use ☑
(Per 21 CFR 801.109)
OR
Over-The-Counter Use ☐

(Optional Format 1-2-96)
(Division Sign-Off)
Division of General Restorative Devices
510(k) Number K974345
000004
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