# US 11,432,825 B2 · Nondestructive autograft extracting device for autologous osteochondral transplantation

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- Number: US 11,432,825 B2
- Document ID: US11432825B2
- Status: Granted
- Kind: B2
- Application number: 16/536,134
- Filed: 2019-08-08
- Published: 2020-02-13
- Granted: 2022-09-06
- Earliest claimed: 2018-08-08
- Assignees: University of Central Florida Research Foundation, Inc.
- Applicants: University of Central Florida Research Foundation, Inc.
- Inventors: Sang-Eun Song; Pradipta Biswas
- Web page: https://patentgrep.com/patent/US11432825B2

## CPC

- A61B 17/142: {with reciprocating saw blades, e.g. with cutting edges at the distal end of the saw blades}
- A61B 17/14: Surgical saws ({A61B17/1637 takes precedence;} dental saws for teeth A61C3/12)
- A61B 17/149: {Chain, wire or band saws}
- A61B 17/1635: {for grafts, harvesting or transplants}
- A61B 17/32002: {with continuously rotating, oscillating or reciprocating cutting instruments}
- A61B 34/30: Surgical robots
- A61F 2/28: Bones
- A61F 2/4601: {for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity}
- A61F 2/4644: {Preparation of bone graft, bone plugs or bone dowels, e.g. grinding or milling bone material (bone material A61F2/28; disintegrating or milling devices B02C)}
- A61B 2017/00969: {used for transplantation}
- A61B 2017/320032: {Details of the rotating or oscillating shaft, e.g. using a flexible shaft}
- A61F 2002/4619: {for extraction}
- A61F 2002/4645: {Devices for grinding or milling bone material}
- A61F 2002/4649: {Bone graft or bone dowel harvest sites}
- 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

Systems and methods for harvesting tissue from a donor site include first and second conduits through which a flexible saw component is guided. Certain embodiments include a mechanism which facilitates insertion of a flexible cutting member component parallel to a transverse plane and slicing a graft parallel to the coronal plane to extract the graft.

## Claims

### Claim 1

A cutting apparatus for cutting tissue, the apparatus comprising
a base comprising a first end and a second end,
a hinge disposed on said base between said first and second ends, the hinge allowing the base to pivot at the hinge to move the first and second ends nearer each other,
a first conduit and a second conduit associated with said first end and second end, respectively, the first and second conduits each having a distal end and proximal end; and
a cutting member disposed within the first and second conduits, wherein said cutting member spans between the distal end of the first conduit and the distal end of the second conduit.

### Claim 2 (depends on 1)

A cutting apparatus of claim 1, wherein the base comprises a first channel and a second channel disposed at said first end and second end, respectively, and wherein said first and second conduits are held within said first and second channels, respectively.

### Claim 3 (depends on 1)

The cutting apparatus of claim 1, wherein the cutting member comprises a first proximal end and a second proximal end extending from the proximal ends of the first and second conduits, respectively.

### Claim 4 (depends on 3)

The cutting apparatus of claim 3, wherein a motor is associated with the first and second proximal ends of the cutting member to provide a reciprocating motion of the cutting member.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the tissue comprises bone.

### Claim 6 (depends on 1)

A method for cutting tissue comprising
Obtaining an apparatus according to claim 1;
Inserting the apparatus into a groove in the tissue; and
Conducting a reciprocating motion of the cutting member to facilitate cutting the tissue in a coronal plane.

### Claim 7 (depends on 6)

The method of claim 6, wherein the coronal plane is transverse to the plane of the groove.