# US 11,992,228 B2 · Reciprocating rasps for use in an orthopaedic surgical procedure

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,992,228 B2
- Document ID: US11992228B2
- Status: Granted
- Kind: B2
- Application number: 17/516,987
- Filed: 2021-11-02
- Published: 2022-02-24
- Granted: 2024-05-28
- Earliest claimed: 2009-12-31
- Assignees: DePuy Synthes Products, Inc.
- Applicants: Depuy Synthes Products, Inc.
- Inventors: Sarah M. Anthony; Conrad L. Klotz; Kyle E. Lappin; Van A. Flamion; Gabriel M. Surma; Joanna L. Surma; Joseph P. Iannotti
- Web page: https://patentgrep.com/patent/US11992228B2

## CPC

- A61B 17/1659: {Surgical rasps, files, planes, or scrapers}
- A61B 17/1666: {for the acetabulum}
- A61B 17/1684: {for the shoulder}
- A61B 17/1735: {for rasps or chisels}
- A61B 17/1746: {for the acetabulum}
- A61B 17/1778: {for the shoulder}
- A61F 2/34: Acetabular cups
- A61F 2/4081: {Glenoid components, e.g. cups}
- 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

Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed. Some of the methods include inserting a guide pin into the glenoid of the patient, advancing a reciprocating surgical rasp over the guide pin, reciprocating the surgical rasp so as to abrade bone tissue to form a cavity shaped to receive the glenoid component, and implanting the glenoid component in the cavity.

## Claims

### Claim 1

A surgical instrument system comprising:
a guide pin configured to be inserted into a glenoid of a patient,
a surgical rasp configured to be advanced along the guide pin, the surgical rasp having
a tapered shaft having an inner sidewall,
a cutting head secured to a first end of the tapered shaft, the cutting head being defined by a wedge-shaped body extending between a base and an end,
a V-shaped notch positioned in the end of the wedge-shaped body configured to receive the guide pin,
the inner sidewall of the tapered shaft forming a plurality of elongated openings such that the guide pin can be visualized from more than one vantage point as it is received in the end of the wedge-shaped body, and
a glenoid prosthesis having a body sized and shaped to receive a humeral head, a keel extending from the body of the glenoid prosthesis and having a wedge-shape that corresponds to the wedge-shaped body of the surgical rasp.

### Claim 2 (depends on 1)

The surgical instrument system of claim 1, further comprising a bore extending from the V-shaped notch to an opening in the base of the wedge-shaped body, the bore being sized to receive the guide pin.

### Claim 3 (depends on 1)

The surgical instrument system of claim 1 wherein the guide pin is a scored guide pin.

### Claim 4 (depends on 1)

The surgical instrument system of claim 1, wherein the plurality of elongated openings are positioned in a first section of the tapered shaft having a first diameter, the tapered shaft further including a second section having a second diameter, wherein the first diameter is greater than the second diameter.

### Claim 5 (depends on 1)

The surgical instrument system of claim 1, wherein the wedge-shaped body includes a cutting surface having a plurality of cutting teeth extending from the wedge-shaped body between the base and the end.

### Claim 6 (depends on 5)

The surgical instrument system of claim 5, wherein the plurality of cutting teeth includes a plurality of curved cutting teeth.

### Claim 7 (depends on 5)

The surgical instrument system of claim 5, further comprising a lead cutting surface at the end of the wedge-shaped body, the V-shaped notch extending into the lead cutting surface and through the plurality of cutting teeth.

### Claim 8 (depends on 1)

The surgical instrument system of claim 1, wherein the wedge-shaped body includes a plurality of curved cutting sections and a plurality of planar cutting sections.

### Claim 9 (depends on 8)

The surgical instrument system of claim 8, wherein the plurality of curved cutting sections and the plurality of planar cutting sections extend from the base of the wedge-shaped body to a lead cutting section positioned opposite the base of the wedge-shaped body.

### Claim 10 (depends on 1)

The surgical instrument system of claim 1, further comprising a depth stop secured to the cutting head.

### Claim 11

A surgical instrument system comprising:
a surgical rasp with a cutting head having a wedge-shaped body,
a shaft having a first section with a first diameter and a second section with a second diameter, the second section of the shaft being positioned between the first section of the shaft and a base portion of the wedge-shaped body, the shaft further including a proximal end configured to fit into a chuck of a reciprocating power tool,
a guide pin configured to extend through the wedge-shaped body and the shaft, the shaft configured to allow the wedge-shaped body to reciprocate along the guide pin, the wedge-shaped body including a V-shaped notch positioned in an end of the wedge-shaped body configured to receive the guide pin,
the second section of the shaft further including an inner side wall forming a plurality of elongated openings such that the guide pin can be visualized from more than one vantage point as it is received in the end of the wedge-shaped body, and
a glenoid prosthesis having a body sized and shaped to receive a humeral head, a keel extending from the body of the glenoid prosthesis and having a wedge-shape that corresponds to the wedge-shaped body of the surgical rasp.

### Claim 12 (depends on 11)

The surgical instrument system of claim 11, further comprising a bore extending from the V-shaped notch to an opening in the base portion of the wedge-shaped body, the bore being sized to receive the guide pin.

### Claim 13 (depends on 11)

The surgical instrument system of claim 11 wherein the guide pin is a scored guide pin.

### Claim 14 (depends on 11)

The surgical instrument system of claim 11, wherein the wedge-shaped body includes a cutting surface having a plurality of cutting teeth extending from the wedge-shaped body between the base portion and the end.

### Claim 15 (depends on 14)

The surgical instrument system of claim 14, wherein the plurality of cutting teeth includes a plurality of curved cutting teeth.

### Claim 16 (depends on 14)

The surgical instrument system of claim 14, further comprising a lead cutting surface at the end of the wedge-shaped body, the V-shaped notch extending into the lead cutting surface and through the plurality of cutting teeth.

### Claim 17 (depends on 11)

The surgical instrument system of claim 11, wherein the wedge-shaped body includes a plurality of curved cutting sections and a plurality of planar cutting sections.

### Claim 18 (depends on 17)

The surgical instrument system of claim 17, wherein the plurality of curved cutting sections and the plurality of planar cutting sections extend from the base portion of the wedge-shaped body to a lead cutting section positioned opposite the base portion of the wedge-shaped body.

### Claim 19 (depends on 11)

The surgical instrument system of claim 11, further comprising a depth stop secured to the cutting head.