Surgical instrument

• US 7,674,255 B2
• Filed: 04/01/2004
• Issued: 03/09/2010
• Est. Priority Date: 04/01/2003
• Status: Active Grant

• Current Assignee: Asensus Surgical Europe SARL (Asensus Surgical, Inc.)
• Original Assignee: Tuebingen Scientific Medical GmbH
• Inventors: Braun, Marcus
• Primary Examiner(s): PEFFLEY, MICHAEL F
• Assistant Examiner(s): Toy; Alex
• Application Number:
  US10/815,395
• Publication Number:
  US 20040260335A1
• Time in Patent Office: 2,168 Days
• Field of Search: 606/1, 606 51- 52, 606205-208
• US Class Current: 606/1
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/2902 characterized by features of the actuating rod
• CPC Class Codes: A61B 2017/2903 transferring rotary motion
• CPC Class Codes: A61B 2017/291 the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/292 connection of actuating rod to handle, e.g. ball end in recess
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2929 with a head rotatable about the longitudinal axis of the shaft
• CPC Class Codes: A61B 2017/293 with means preventing relative rotation between the shaft and the actuating rod
• CPC Class Codes: A61B 2017/2933 camming or guiding means
• CPC Class Codes: A61B 2017/294 Connection of actuating rod to jaw, e.g. releasable

Abstract

A surgical instrument comprising an instrument handle linked to a proximal end portion of a tube shaft to the distal end portion of which an instrument head is linked so as to be inclinable, in which instrument head, in turn, an effector including at least one pivotable engaging element is rotatably supported. The instrument handle comprises a number of manipulators and/or operating mechanisms designed for operating the instrument head and/or the effector. One of the manipulators consists of an operating element in the form of a rotary knob with respect to its function, the operating element being rotatably supported on the instrument handle.

Claims

1. A surgical instrument comprising:

an instrument handle having a front end and a rear end;

a tube shaft having a proximal end portion and a distal end portion, wherein the proximal end portion is linked to the rear end of the instrument handle; and

an instrument head, wherein the instrument head is linked to the distal end portion, so as to allow the instrument head to bend relative to the tube shaft, the instrument head further comprising a rotatably supported effector having at least one pivotable engaging element,

wherein the instrument handle includes a plurality of manipulators and/or operating mechanisms for operating the instrument head and/or the effector, wherein a first manipulator further comprises an operating element having the shape of a rotary knob and being rotatably supported at the front end of the instrument handle, and wherein the instrument handle is pivotally supported at the tube shaft via a pivot shaft, such that the instrument handle including the first manipulator are aligned so as to be laterally offset with respect to the tube shaft.

2. A surgical instrument according to claim 1, wherein the instrument handle forms an operating mechanism for bending the instrument head with respect to the tube shaft.

3. A surgical instrument according to claim 2, wherein the instrument handle is constructively pivotable past a parallel position with respect to the tube shaft.

4. A surgical instrument according to claim 1, wherein the first manipulator in the shape of a rotary knob is rotatably arranged at a distal end portion of a handle member of the instrument handle and wherein the first manipulator is inclined with respect to the longitudinal axis of the instrument handle.

5. A surgical instrument according to claim 4, wherein the inclination of the rotary knob relative to the instrument handle is at an angle of approximately 20°

to 25°

.

6. A surgical instrument according to claim 2, wherein the first manipulator in the shape of a rotary knob is rotatably arranged at a distal end portion of a handle member of the instrument handle and wherein the first manipulator is inclined with respect to the longitudinal axis of the instrument handle.

7. A surgical instrument according to claim 1, wherein the first manipulator forms the distal tip of the instrument handle.

8. A surgical instrument according to claim 7, wherein the first manipulator is adapted to be operated by the fingers of a human hand.

9. A surgical instrument according to claim 1, wherein the first manipulator is operatively connected, via a gear train, to the effector.

10. A surgical instrument according to claim 9, wherein rotation of the first manipulator rotates the gear train which rotates the effector relative to the instrument head.

11. A surgical instrument according to claim 1, wherein a lever-shaped manipulator is arranged at a longitudinal side of the instrument handle and is pivotable relative to the instrument handle and operatively connected, via a gear train, to the effector.

12. A surgical instrument according to claim 11, wherein the lever-shaped manipulator is adapted to operate the effector.

13. A surgical instrument according to claim 1, wherein the instrument handle has an ergonomically shaped handle member on which the manipulators and/or operating mechanisms of the instrument handle are supported.

15. A surgical instrument according to claim 1, wherein the first manipulator is adapted to be operated by the fingers of a human hand while the instrument handle is held fast in the hand.

16. A surgical instrument according to claim 1, wherein rotation of the instrument handle does not necessarily cause rotation of the first manipulator.

14. A surgical instrument comprising:

an instrument handle having a front end and a rear end;

a tube shaft having a proximal end portion and a distal end portion, wherein the proximal end portion is linked to the rear end of the instrument handle; and

an instrument head, wherein the instrument head is linked to the distal end portion, so as to allow the instrument head to bend relative to the tube shaft, the instrument head further comprising a rotatably supported effector having at least one pivotable engaging element,

wherein the instrument handle includes a plurality of manipulators and/or operating mechanisms for operating the instrument head and/or the effector, wherein a first manipulator configured to effect bending of the instrument head is formed between the front end of the instrument handle and the rear end of the instrument handle and further comprises a free end and a second manipulator further comprises an operating element having the shape of a rotary knob and being rotatably supported at the free end of the first manipulator of the instrument handle opposite to the linkage with the tube shaft, and wherein the instrument handle forms an operating mechanism for bending the instrument head with respect to the tube shaft.

17. A surgical instrument comprising:

a tube shaft having a first end and a second end;

an instrument head coupled to the first end of the tube shaft; and

an instrument handle coupled to the second end of the tub shaft, the instrument handle comprising;

a first manipulator comprising an actuator shaft having a longitudinal axis; and

a second manipulator coupled to the first manipulator along the longitudinal axis of the first manipulator, wherein the second manipulator comprises a rotary knob rotatable about the longitudinal axis of the first manipulator.