Insulating boot with mechanical reinforcement for electrosurgical forceps

• US 8,235,992 B2
• Filed: 09/23/2008
• Issued: 08/07/2012
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Guerra, Paul, Hammill, Curt D., Cunningham, James S., Hushka, Dylan, Townsend, Jeffrey R.
• Primary Examiner(s): Mehta, Bhisma
• Application Number:
  US12/235,804
• Publication Number:
  US 20090088740A1
• Time in Patent Office: 1,414 Days
• Field of Search: 606/46, 606/47, 606/48, 606/49, 606/50, 606/51, 606/206, 606/207, 606/52, 606/205
• US Class Current: 606/51
• CPC Class Codes: A61B 18/1233 with circuits for assuring patient safety
• CPC Class Codes: A61B 18/1445 at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
• CPC Class Codes: A61B 2018/00083 low, i.e. electrically insulating
• CPC Class Codes: A61B 2018/00589 Coagulation
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/0063 Sealing

Abstract

An electrosurgical forceps includes a shaft having a pair of jaw members at a distal end thereof that is movable about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for grasping tissue. A movable handle is included that actuates a drive assembly to move the jaw members relative to one another and at least one of the jaw members is adapted to connect to a source of electrical energy such that the jaw members are capable of conducting energy to tissue held therebetween. A flexible insulating boot is disposed on at least a portion of an exterior surface of one or both jaw members and about the pivot. The flexible boot includes one or more mechanically reinforcing elements operatively coupled thereto that is configured enhance the rigidity of the insulating boot.

Claims

1. An electrosurgical forceps, comprising:

a shaft having a pair of jaw members at a distal end thereof, the jaw members being movable about a pivot from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members are closer to one another for grasping tissue;

a movable handle that actuates a drive assembly to move the jaw members relative to one another;

at least one of the jaw members adapted to connect to a source of electrical energy such that the at least one jaw member is capable of conducting energy to tissue held therebetween; and

a flexible insulating boot disposed on at least a portion of an exterior surface of at least one jaw member and about the pivot, at least a portion of the flexible boot including at least one mechanically reinforcing element operatively coupled thereto that is configured to enhance the rigidity of the insulating boot,

wherein the at least one mechanically reinforcing element includes a wire-like support member disposed along a length thereof, wherein the wire-like support member is adhered to at least one of an outer and inner periphery of the flexible insulating boot.

2. An electrosurgical forceps according to claim 1 wherein the at least one mechanically reinforcing element includes a second wire-like support member opposing the wire-like support member disposed along a length of the flexible insulating boot.

3. An electrosurgical forceps according to claim 1 wherein the wire-like support member is at least one of co-extruded and insert molded within the flexible insulating boot.

4. An electrosurgical forceps according to claim 1 wherein the at least one mechanically reinforcing element is manufactured from at least one of flexible metal, surgical stainless steel, NiTi, thermoplastic, polymer, high durometer material and combinations thereof.

5. An electrosurgical forceps according to claim 1 wherein the at least one mechanically reinforcing element is non-conductive.