Combination bipolar scissors and forceps instrument

• US 5,342,381 A
• Filed: 02/11/1993
• Issued: 08/30/1994
• Est. Priority Date: 02/11/1993
• Status: Expired due to Fees

• Current Assignee: Gyrus Medical Incorporated (Olympus Corporation)
• Original Assignee: Everest Medical Corp. (Olympus Corporation)
• Inventors: Tidemand, Kevin K.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): LEWIS, WILLIAM W
• Application Number:
  US08/016,327
• Time in Patent Office: 565 Days
• Field of Search: 606/51, 606/52, 606/174, 606/175, 606/205-211, 128/750-755
• US Class Current: 606/174
• CPC Class Codes: A61B 17/2812 with a single pivotal connection A61B17/29 takes precedence
• CPC Class Codes: A61B 17/3201 Scissors for biopsy A61B10/02
• 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 18/1815 using microwaves
• CPC Class Codes: A61B 2017/2948 Sealing means, e.g. for sealing the interior from fluid entry
• CPC Class Codes: A61B 2018/00107 Coatings on the energy applicator
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/1415 multiple blades
• CPC Class Codes: A61B 2018/1417 Ball
• CPC Class Codes: A61B 2018/1457 having opposing blades cutting tissue grasped by the jaws, i.e. combined scissors and pliers
• CPC Class Codes: A61B 2018/146 Scissors

Abstract

A hand operable bipolar combination scissors and forceps instrument. The instrument comprises two interfacing blade members wherein at least one blade member is pivotable in relation to the other blade member and wherein each blade member is an electrode to which current can flow. Each blade member is shaped to cooperate with the other blade member to thereby form a distal forceps portion and a proximal scissors portion wherein the respective scissors portions are electrically insulated from each other along their interfacing surfaces. Preferably, each blade member is individually pivotable in relation to the other blade member, and the instrument is dimensioned to have utility in endoscopic or other similar procedures.

Claims

1. A hand operable, bipolar, combination scissors and forceps instrument comprising two interfacing blade members wherein at least one blade member is pivotable in relation to the other blade member, and further wherein each blade member is shaped to cooperate with the other blade member to thereby form a distal forceps portion and a proximal scissors portion, each blade member being a metal electrode to which current can flow and having a ceramic insulator layer secured to the scissors portion thereof, whereby the ceramic insulator layer of one blade member interfaces with the ceramic insulator layer of the other blade member for electrically insulating one another along their entire lengths and wherein the interfacing ceramic layers each have a beveled cutting edge.

2. The instrument as claimed in claim 1 wherein each blade member is individually pivotable in relation to the other blade member.

3. The instrument as claimed in claim 1 wherein the metal is stainless steel.

4. A hand operable bipolar combination scissors and forceps instrument comprising:

(a) an elongated tubular member having a proximal end, a distal end and a lumen extending therebetween;

(b) two interfacing blade members disposed at the distal end of the tubular member and wherein at least one blade member is pivotable in relation to the other blade member, and further wherein each blade member is shaped to cooperate with the other blade member to thereby form a distal forceps portion and a proximal scissors portion, each blade member being a metal electrode to which current can flow and having a ceramic insulator layer secured to the scissors portion thereof whereby the ceramic insulator layer of one blade interfaces with the ceramic insulator layer of the other blade and wherein the interfacing ceramic layers each have a beveled cutting edge; and

(c) a handle disposed at the proximal end of the tubular member, said handle being in communication with the blade members and being hand operable to thereby produce pivotal action of the blade members.

5. The instrument as claimed in claim 4 wherein each blade member is individually pivotable in relation to the other blade member.

6. The instrument as claimed in claim 4 wherein the metal is stainless steel.