# US 11,298,181 B2 · Electrosurgical forceps

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- Number: US 11,298,181 B2
- Document ID: US11298181B2
- Status: Granted
- Kind: B2
- Application number: 16/454,844
- Filed: 2019-06-27
- Published: 2020-12-31
- Granted: 2022-04-12
- Earliest claimed: 2019-06-27
- Assignees: Covidien LP
- Applicants: Covidien LP
- Inventors: Grant T. Sims; Daniel W. Mercier; Craig V. Krastins; Jennifer L. Rich; Kelley D. Goodman
- Web page: https://patentgrep.com/patent/US11298181B2

## CPC

- A61B 18/1442: {Probes having pivoting end effectors, e.g. forceps}
- A61B 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod}
- A61B 18/085: {Forceps, scissors}
- A61B 18/1206: {Generators therefor}
- A61B 2018/00589: {Coagulation}
- A61B 2018/00595: {Cauterization}
- A61B 2018/00607: {Coagulation and cutting with the same instrument}
- A61B 2018/0063: {Sealing}
- A61B 2018/00922: {by switching or controlling the treatment energy directly within the hand-piece}
- A61B 2018/1455: {having a moving blade for cutting tissue grasped by the jaws}
- A61B 2018/146: {Scissors}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

An electrosurgical forceps includes first and second shaft members pivotably coupled to one another such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A handle of the first shaft member may be moved against a resilient bias of a spring element.

## Claims

### Claim 1

An electrosurgical forceps, comprising:
a first shaft member having a first jaw member secured to and extending distally from the first shaft member, the first shaft member having a proximal end portion supporting a handle;
a second shaft member pivotably coupled to the first shaft member and having a second jaw member secured to and extending distally from the second shaft member, the second shaft member having a proximal end portion supporting an activation switch; and
an elongated spring element supported in the proximal end portion of the first shaft member, wherein the handle is configured to flex the elongated spring element and urge the proximal end portion of the first shaft member into engagement with the activation switch, wherein the elongated spring element has a proximal end and a distal end, at least one of the proximal end or the distal end of the elongated spring element is fixed to the first shaft member;
a first capture member operably engaged to an inner wall of the proximal end portion of the first shaft member, the proximal end of the elongated spring element supported by the capture member; and
a second capture member operably engaged to the inner wall, the distal end of the elongated spring element supported by the second capture member.

### Claim 2 (depends on 1)

The electrosurgical forceps according to claim 1, wherein the second shaft member is rigid along its length.

### Claim 3 (depends on 1)

The electrosurgical forceps according to claim 1, wherein the first and second shaft members are configured to resist flexing during approximation of the proximal end portions thereof.

### Claim 4 (depends on 1)

The electrosurgical forceps according to claim 1, wherein the elongated spring element is a cantilever spring.