Surgical instrument

• US 6,358,268 B1
• Filed: 03/06/2000
• Issued: 03/19/2002
• Est. Priority Date: 03/06/2000
• Status: Expired due to Term

• Current Assignee: Aesculap AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: Robert B. Hunt
• Inventors: Melsky, Gerald S., Evans, Stephen C., Hunt, Robert B.
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US09/519,103
• Time in Patent Office: 743 Days
• Field of Search: 606/205-210, 606/170, 606/171, 606/174, 606/167, 606/138, 606/139, 606/151, 128/751, 128/752, 128/749
• US Class Current: 606/206
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take 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 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping channel for multiple instruments A61B2017/3445; instrument channel A61B2017/22072; replaceable heads A61B2017/2931; suction A61M1/00
• CPC Class Codes: A61B 2017/2902 characterized by features of the actuating rod
• CPC Class Codes: A61B 2017/291 the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2915 arcuate shaped guiding means
• CPC Class Codes: A61B 2017/2916 pins in guiding slots
• CPC Class Codes: A61B 2017/2919 details of linkages or pivot points
• CPC Class Codes: A61B 2017/292 connection of actuating rod to handle, e.g. ball end in recess
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/2938 Independently actuatable jaw members, e.g. two actuating rods
• CPC Class Codes: A61B 2017/2947 Pivots

Abstract

A surgical instrument including a handle assembly; a shaft connected on one end to the handle assembly; and an end assembly extending from the other end of the shaft. The end assembly is constructed to include a fixed member including on one portion thereof a fixed scissor blade and on another portion thereof a fixed forcep jaw. The end assembly also includes a pivotable scissor blade for cutting tissue between the fixed scissor blade and the pivotable scissor blade and a pivotable forcep jaw for grasping tissue between the fixed forcep jaw and the pivotable forcep jaw.

Claims

1. A surgical instrument comprising:

a handle assembly;

a shaft connected on one end to the handle assembly; and

an end assembly extending from the other end of the shaft, the end assembly including;

a fixed member including on a first surface thereof a fixed scissor blade and on a second surface thereof a fixed forcep jaw,

a pivotable scissor blade operatively disposed to cut tissue between the fixed scissor blade and the pivotable scissor blade, and

a pivotable forcep jaw operatively disposed to grasp tissue between the fixed forcep jaw and the pivotable forcep jaw.

2. The surgical instrument of claim 1 in which both the fixed forcep jaw and the pivotable forcep jaw includes serrations thereon.

3. The surgical instrument of claim 1 in which the fixed member is disposed between the pivotable scissor blade and the pivotable forcep jaw.

4. The surgical instrument of claim 3 in which the pivotable scissor blade is disposed above the fixed member and the pivotable forcep jaw is disposed below the fixed member.

5. The surgical instrument of claim 4 in which the fixed forcep jaw is on a lower surface of the fixed member and the fixed scissor blade is disposed on an upper surface of the fixed member.

6. The surgical instrument of claim 1 in which the handle assembly includes spaced scissor-like handles, at least one said handle being pivotably attached to the handle assembly and having an angular range of motion with respect to the handle assembly.

7. The surgical instrument of claim 6 in which the shaft includes a linkage assembly having means for opening and closing the scissor blades during one portion of the angular range of motion of the pivoting handle and for opening and closing the forcep jaws during a second portion of the angular range of motion of the pivoting handle.

8. The surgical instrument of claim 6 in which said means includes a scissor blade push rod slidably disposed in the shaft and a forceps jaw push rod slidably disposed in the shaft.

9. The surgical instrument of claim 8 in which the pivotable scissor blade is pivotably attached on one side of the fixed member and the pivotable forcep jaw is pivotably attached on another side of the fixed member.

10. The surgical instrument of claim 9 in which the scissor blade push rod is connected on one end to a scissor blade link which is connected to the pivotable scissor blade and in which the forcep jaw push rod is connected on one end to a forcep jaw link which is connected to the pivotable forcep jaw.

11. The surgical instrument of claim 8 in which the scissor blade push rod is connected on one end to a scissor block slidably disposed in the handle assembly, the scissor block including a projection extending into a first cam groove, and in which the jaw push rod is connected on one end to a jaw block slidably disposed in the handle assembly, the jaw block including a projection extending into a second cam groove.

12. The surgical instrument of claim 1 further including electrical conductors connected on one end to the pivotable scissor blade and the pivotable forcep jaw for coagulating tissue.

13. The surgical instrument of claim 1 further including means for rotating the shaft relative to the handle assembly.

14. A surgical device comprising:

a handle assembly;

a shaft connected on one end to the handle assembly; and

an end assembly extending from the other end of the shaft, the end assembly including;

a fixed member including on one surface thereof a fixed portion of a first surgical instrument and on another surface thereof a fixed portion of a second surgical instrument,

a pivotable portion of the first surgical instrument pivotably attached to the fixed member and disposed to cooperate with the fixed portion of the first surgical instrument to perform a first type of medical procedure, and

a pivotable portion of the second surgical instrument pivotably attached to the fixed member and disposed to cooperate with the fixed portion of the second surgical instrument to perform a second type of medical procedure.

15. The surgical device of claim 14 in which the fixed portion of the first surgical instrument is fixed scissor blade and the pivotable portion of the first surgical instrument is a pivotable scissor blade.

16. The surgical device of claim 14 in which the fixed portion of the second surgical instrument is a fixed forcep jaw and the pivotable portion of the second surgical instrument is a pivotable forcep jaw.

17. An end assembly for a surgical instrument, the end assembly comprising:

a fixed member including on one surface thereof a fixed scissor blade and on another surface thereof a fixed forcep jaw;

a pivotable scissor blade pivotably attached to the fixed member for cutting tissue between the fixed scissor blade and the pivotable scissor blade; and

a pivotable forcep jaw pivotably attached to the fixed member for grasping tissue between the fixed forcep jaw and the pivotable forcep jaw.