# US 2008/0188935 A1 · Drill pin for fixation of ligaments using button/loop construct

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- Number: US 2008/0188935 A1
- Document ID: US20080188935A1
- Status: Published application
- Kind: A1
- Application number: 12/010,537
- Filed: 2008-01-25
- Published: 2008-08-07
- Earliest claimed: 2006-08-16
- Assignees: Arthrex, Inc.
- Inventors: James Saylor; Jonathan Decker
- Web page: https://patentgrep.com/patent/US20080188935A1

## CPC

- A61B 17/1615: {Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material}
- 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 17/1675: {for the knee}
- A61B 17/1764: {for the knee}
- A61F 2/0805: {Implements for inserting tendons or ligaments}
- A61F 2/0811: {Fixation devices for tendons or ligaments}
- A61B 17/1714: {for applying tendons or ligaments (implements for applying tendons or ligaments A61F2/0805)}
- A61B 17/1796: {for holes for sutures or flexible wires}
- A61B 2017/0404: {Buttons}
- A61B 2017/0414: {having a suture-receiving opening, e.g. lateral opening}
- A61B 2090/062: {penetration depth}
- A61F 2002/0852: {Fixation of a loop or U-turn, e.g. eyelets, anchor having multiple holes}
- A61F 2002/0882: {Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- 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)

## Abstract

A technique and reconstruction system for ligament employing a button/loop construct with a drill pin. The drill pin has a shaft with a proximal and a distal end. A pin tip provided at the distal end of the shaft has a width greater than the shaft diameter. The pin tip helps cut a wider tunnel for fixation of ligaments/grafts in reconstructive surgeries. The shaft of the drill pin is provided with a laser marks for measurement of intraosseous length.

## Claims

### Claim 1

A drill pin comprising:
a shaft having a distal end and a proximal end,
wherein the proximal end has an eyelet, and wherein the distal end has a tip portion with cutting edges, the tip portion with cutting edges having an increased diameter relative to the rest of the shaft.

### Claim 2 (depends on 1)

The drill pin of claim 1, wherein the drill pin is made of a material comprising one of stainless steel and titanium alloy.

### Claim 3 (depends on 1)

The drill pin of claim 1, wherein the shaft is provided with a plurality of laser markings along its length for measuring distances during a surgical procedure.

### Claim 4 (depends on 4)

The drill pin of claim 4, wherein the plurality of laser markings are spaced at a predetermined length from the distal end.

### Claim 5 (depends on 1)

The drill pin of claim 1, wherein the cutting surfaces have a relief angle of 120° for all cutting surfaces which are 180° opposed.

### Claim 6 (depends on 1)

The drill pin of claim 1, wherein the diameter of the shaft cross-section is about 2.4 mm and the diameter of cutting edges of the tip portion is about 3 mm.

### Claim 7

A method of graft fixation, comprising:
(i) drilling a tunnel through bone using a drill pin, the drill pin having a shaft provided with laser marks, a proximal end provided with an eyelet, and a distal end provided with cutting edges, the distal end having an increased diameter relative to the rest of the shaft;
(ii) securing a button/loop construct with an attached graft to the drill pin by passing strands from the button/loop construct through the eyelet in the drill pin;
(iii) passing the drill pin and the suture/button construct with the attached graft through the tunnel; and
(iv) securing the button to the cortex of the bone once the button exits the tunnel.

### Claim 8 (depends on 7)

The method of claim 7, wherein laser marks on the drill pin are used to measure the intraosseous length of the tunnel.