Vessel sealing instrument

Patent metadata

Field	Value
Publication number	US-2020323578-A1
Application number	US-202016912807-A
Country	US
Kind code	A1
Filing date	Jun 26, 2020
Priority date	Oct 4, 2010
Publication date	Oct 15, 2020
Grant date	—

Abstract

A bipolar electrosurgical instrument includes first and second shafts each having a jaw member extending from its distal end. Each jaw member is adapted to connect to a source of electrosurgical energy such that the jaw members are capable of selectively conducting energy through tissue held therebetween. A knife channel is configured to reciprocate a cutting mechanism therealong. An actuator selectively advances the cutting mechanism. A switch is disposed on the first shaft and is configured to be depressed between a first position and at least one subsequent position upon biasing engagement with a mechanical interface disposed on the second shaft. The first position of the switch relays information to the user corresponding to a desired pressure on tissue and the at least one subsequent position is configured to activate the source of electrosurgical energy to supply electrosurgical energy to the jaw members.

First claim

1 - 16 . (canceled)

17 . A surgical forceps for treating tissue, comprising:
a pair of shafts each having a jaw member disposed at a distal end thereof, each shaft of the pair of shafts configured to rotate about a pivot to move the jaw members relative to each other; a knife configured to cut tissue disposed between the jaw members; a trigger extending from one of the shafts, the trigger operably coupled to the knife and rotatable to actuate the knife to cut tissue disposed between the jaw members; and an anti-deployment link disposed adjacent to the trigger and configured to engage the trigger to prevent rotation of the trigger.

18 . The surgical forceps according to claim 17 , further comprising a stop member disposed on at least one of the jaw members and configured to control a distance between the jaw members.

19 . The surgical forceps according to claim 17 , further comprising an actuating mechanism housed within one of the shafts and operably coupled to the trigger, the trigger rotatable to cause the actuating mechanism to actuate the knife.

20 . The surgical forceps according to claim 17 , wherein approximation of the pair of shafts moves the anti-deployment link out of engagement with the trigger to permit rotation of the trigger.

21 . The surgical forceps according to claim 17 , wherein the trigger includes a pair of handle members extending from opposing sides of one of the shafts.

22 . A surgical forceps for treating tissue, comprising:
a pair of shafts each having a jaw member disposed at a distal end thereof and a handle at a proximal end thereof, each handle defining a fingerhole configured to receive a finger of a user for rotating each shaft of the pair of shafts about a pivot to move the jaw members relative to each other; a knife configured to cut tissue disposed between the jaw members; a trigger extending from one of the shafts at a location distal to the handles, the trigger operably coupled to the knife and rotatable to actuate the knife to cut tissue disposed between the jaw members; and an anti-deployment link disposed adjacent to the trigger and configured to engage the trigger at a location distal to the handles to prevent rotation of the trigger.

23 . The surgical forceps according to claim 22 , further comprising a stop member disposed on at least one of the jaw members and configured to control a distance between the jaw members.

24 . The surgical forceps according to claim 22 , further comprising an actuating mechanism housed within one of the shafts and operably coupled to the trigger, the trigger rotatable to cause the actuating mechanism to actuate the knife.

25 . The surgical forceps according to claim 22 , wherein approximation of the pair of shafts moves the anti-deployment link out of engagement with the trigger to permit rotation of the trigger.

26 . The surgical forceps according to claim 22 , wherein the trigger includes a pair of handle members extending from opposing sides of one of the shafts.

27 . A surgical forceps for treating tissue, comprising:
a pair of shafts each having a jaw member disposed at a distal end thereof and a handle at a proximal end thereof, each handle defining a fingerhole configured to receive a finger of a user for rotating each shaft of the pair of shafts about a pivot to move the jaw members relative to each other; a knife configured to cut tissue disposed between the jaw members; a trigger extending from one of the shafts at a location distal to the handles, the trigger operably coupled to the knife and rotatable to actuate the knife to cut tissue disposed between the jaw members; and an anti-deployment link disposed at a location distal to the handles and configured to engage the trigger at a location distal to the handles to prevent actuation of the knife.

28 . The surgical forceps according to claim 27 , further comprising a stop member disposed on at least one of the jaw members and configured to control a distance between the jaw members.

29 . The surgical forceps according to claim 27 , wherein approximation of the pair of shaft moves the anti-deployment link out of engagement with the trigger to permit actuation of the knife.

30 . The surgical forceps according to claim 27 , wherein the trigger includes a pair of handle members extending from opposing sides of one of the shafts.

31 . The surgical forceps according to claim 27 , further comprising an actuating mechanism housed within one of the shafts and operably coupled to the trigger, the trigger rotatable to cause the actuating mechanism to actuate the knife.

Assignees

• Covidien Lp

Inventors

• Artale Ryan C
• Roy Jeffrey M
• Moua Tony
• Butcher Dennis W
• Dickhans William J
• Joseph Daniel A
• Waaler Luke
• Perry Cynthia M
• Collins Long Meghan

Classifications

• A61B17/28

  Surgical forceps (biopsy forceps A61B10/06; {for holding suture needles or materials A61B17/0483; for removing or smashing calculi A61B17/221; surgical scissors A61B17/3201;} obstetrical forceps A61B17/44) · CPC title

• A61N1/18

  Applying electric currents by contact electrodes · CPC title

• A61B18/12 Primary

  by passing a current through the tissue to be heated, e.g. high-frequency current · CPC title

• A61B90/03

  Automatic limiting or abutting means, e.g. for safety · CPC title

• A61B34/76

  Manipulators having means for providing feel, e.g. force or tactile feedback · CPC title