# US 11,076,845 B2 · Methods and procedures for ligament repair

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- Number: US 11,076,845 B2
- Document ID: US11076845B2
- Status: Granted
- Kind: B2
- Application number: 16/558,525
- Filed: 2019-09-03
- Published: 2019-12-26
- Granted: 2021-08-03
- Earliest claimed: 2006-01-25
- Assignees: Children's Medical Center Corporation
- Applicants: The Children's Medical Center Corporation
- Inventors: Martha M. Murray
- Web page: https://patentgrep.com/patent/US11076845B2

## CPC

- A61F 2/0811: {Fixation devices for tendons or ligaments}
- A61B 17/0401: {Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811)}
- A61B 17/1146: {of tendons}
- A61L 17/12: Homopolymers or copolymers of glycolic acid or lactic acid
- A61L 27/22: Polypeptides or derivatives thereof {, e.g. degradation products}
- A61L 27/24: Collagen
- A61L 27/52: Hydrogels or hydrocolloids
- A61L 27/56: Porous materials, {e.g. foams or sponges}
- A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery}
- A61B 2017/00004: {(bio)absorbable, (bio)resorbable or resorptive}
- A61B 2017/00893: {pharmaceutically effective}
- A61B 2017/0414: {having a suture-receiving opening, e.g. lateral opening}
- A61B 2017/044: {with a threaded shaft, e.g. screws}
- A61B 2017/0458: {Longitudinal through hole, e.g. suture blocked by a distal suture knot}
- A61F 2002/0888: {Anchor in or on a blind hole or on the bone surface without formation of a tunnel}
- A61L 2430/10: for reconstruction of tendons or ligaments
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

Methods and devices for the repair of a ruptured ligament using a scaffold device are provided. Aspects of the invention may include a scaffold attached by a suture to an anchor. In aspects of the invention, the anchor may be secured to a bone near or at the repair site.

## Claims

### Claim 1

A method for repairing a ligament exposed to synovial fluid, comprising:
threading a suture through an anchor, the anchor positioned on the first bone to resist load directed through the synovial fluid;
threading the suture through a scaffold; and
connecting the suture to a ruptured end of the ligament, the ruptured end of the ligament connected to a second bone.

### Claim 2 (depends on 1)

The method of claim 1, further comprising the steps of:
drilling a hole in the second bone, and
connecting a second suture to the second bone using a second anchor.

### Claim 3 (depends on 1)

The method of claim 1, further comprising attaching the anchor to the first bone.

### Claim 4 (depends on 1)

The method of claim 1, further comprising positioning the scaffold between the ruptured end of the ligament and the first bone.

### Claim 5 (depends on 1)

The method of claim 1, wherein the first bone is one of a femur or a tibia and the second bone is the other one of the femur or the tibia.

### Claim 6 (depends on 1)

The method of claim 1, wherein the scaffold comprises a porous collagen sponge.

### Claim 7 (depends on 1)

The method of claim 1, further comprising treating the scaffold with a repair material.

### Claim 8 (depends on 1)

The method of claim 1, wherein the repair material is a platelet or plasma.