# US 2013/0158549 A1 · Monocoque jaw design

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- Number: US 2013/0158549 A1
- Document ID: US20130158549A1
- Status: Published application
- Kind: A1
- Application number: 13/768,140
- Filed: 2013-02-15
- Published: 2013-06-20
- Earliest claimed: 2008-02-22
- Assignees: Covidien LP
- Inventors: EDWARD M. CHOJIN
- Web page: https://patentgrep.com/patent/US20130158549A1

## CPC

- A61B 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod}
- A61B 2017/00526: {Methods of manufacturing}
- A61B 2018/00083: {low, i.e. electrically insulating}
- A61B 2018/00916: {with means for switching or controlling the main function of the instrument or device}
- A61B 2018/1412: {Blade}
- A61B 2018/1455: {having a moving blade for cutting tissue grasped by the jaws}
- Y10T 29/49227: Insulator making
- Y10T 29/4998: Combined manufacture including applying or shaping of fluent material
- Y10T 29/49982: Coating
- Y10T 29/53678: Compressing parts together face to face
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A jaw member for use with an electrosurgical forceps includes a support member having a first surface and a pair of depending sides which extend therefrom forming a generally U-shaped configuration. The free end of the sides each including a flange which extends outwardly therefrom which is designed to attach to an electrically conductive plate such that the plate bridge the two flanges to enclose the U-shaped support member to form a box-like skeleton having a cavity defined therein. An insulative material is disposed within the cavity and an insulative cover is disposed about a periphery of the box-like support skeleton to insulate surrounding tissue during activation of the conductive plate.

## Claims

### Claim 1

A jaw member for use with an electrosurgical forceps, the jaw member comprising:
a support member having a first surface and a pair of sides that depend therefrom, a free end of the sides each including a flange that extends outwardly therefrom;
a conductive plate adapted to connect to an electrosurgical energy source and attached to bridge the flanges to enclose the support member to form a box-like skeleton having a cavity defined therein;
a filler material disposed within the cavity; and
an insulative cover disposed about a periphery of the box-like support skeleton to insulate surrounding tissue during activation of the conductive plate.

### Claim 2 (depends on 1)

The jaw member according to claim 1, wherein at least one of the filler material and the insulative cover includes at least one of a plastic, epoxy, polymer-based materials, resin, gel and combinations thereof.

### Claim 3 (depends on 1)

The jaw member according to claim 1, wherein the filler material and the insulative cover are made from different insulative materials selected from the group consisting of plastic, epoxy, resin, polymer-based materials, and gel.

### Claim 4 (depends on 1)

The jaw member according to claim 1, wherein the conductive plate includes a knife slot defined therein.

### Claim 5 (depends on 1)

The jaw member according to claim 1, wherein the support member is stamped to form at least one of a substantially U-shaped configuration, a substantially O-shaped configuration, and a substantially V-shaped configuration.

### Claim 6 (depends on 1)

The jaw member according to claim 1, wherein the support member comprises at least one flange configured to extend therefrom.

### Claim 7 (depends on 1)

The jaw member according to claim 1, wherein the insulative cover is an overmold.

### Claim 8 (depends on 1)

The jaw member according to claim 1, wherein the insulative cover is a coating.

### Claim 9 (depends on 1)

The jaw member according to claim 1, wherein the conductive plate is attached to the support member to for the box-like support structure by at least one of welding, soldering, gluing, and mechanically engaging.