Surgical operation instrument

• US 6,936,061 B2
• Filed: 12/21/2001
• Issued: 08/30/2005
• Est. Priority Date: 04/27/2000
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Sasaki, Katsumi
• Primary Examiner(s): BUI, VY Q
• Application Number:
  US10/029,627
• Publication Number:
  US 20020055758A1
• Time in Patent Office: 1,348 Days
• Field of Search: 606/205, 606/206, 606/207, 606/170, 606/174, 606/167, 606/138, 606/139, 606/140, 606/141, 606/142, 606/143, 606/144, 606/145
• US Class Current: 606/205
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/062 Needle manipulators
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 2017/291 the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft

Abstract

The present invention is provided with a treatment section provided at the distal end of an insertion section insertable into a body cavity, and being openable/closable and rotatable from side to side and up and down, an operation section provided at the proximal end of the insertion section and being openable/closable and rotatable from side to side and upward or downward, and first to third driving rods which connect the treatment section and the operation section together and which can be advanced or retracted. The present invention is characterized in that the opening/closing operation of the first and second handles causes the advancing/retracting movement of the driving rod, thereby opening or closing the jaws of the treatment section, and in that the rotation of the operation section causes the advancing/retracting movement of the driving rod, thereby rotating the treatment section relative to the axis of the insertion section.

Claims

1. A surgical operation instrument comprising:

an elongate insertion section insertable into a body cavity and including distal and proximal end portions, the insertion section having an elongate axis;

a first coupling member provided at the proximal end portion of the insertion section and being rotatable on a first pivot in a first direction;

a handle provided for the first coupling member and rotatable on a second pivot in a second direction perpendicular to the first direction;

a second coupling member provided for the handle;

first and second driving rods having first ends and second ends, the first ends being connected to the second coupling member at positions sandwiching the first pivot; and

a treatment section rotatably connected to the second ends of the first and second driving rods;

said handle being rotatable from side to side and also being rotatable upward or downward with the first and second pivots as support points,

said first and second driving rods moving in opposite directions along the elongate axis of the insertion section to rotate the treatment section from side to side when the handle is rotated from side to side about the first pivot, and moving in one direction along the elongate axis of the insertion section to rotate the treatment section up or down, when the handle is rotated up or down about the second pivot.

2. A surgical operation instrument according to claim 1, wherein said insertion section includes a small-diameter pipe, and said first and second driving rods are contained in the small-diameter pipe, extended along the elongate axis of the insertion section, and able to advance or retract along the elongate axis of the insertion section simultaneously or independently.

3. A surgical operation instrument according to claim 1, further comprising another handle which is rotatable upward or downward relative to said handle.

4. A surgical operation instrument according to claim 3, wherein the treatment section includes a pair of jaws which are openable/closable and rotatable from side to side and up and down.

5. A surgical operation instrument according to claim 4, further comprising a third driving rod, which connects one of the jaws to said another handle and allows the jaws of the treatment section to open or close.

6. A surgical operation instrument according to claim 5, wherein, when said another handle is rotated downward relative to said handle, about a third pivot, and becomes parallel to the handle, the third driving rod is retracted, allowing said pair of jaws to close and linearly extend, and allowing said handle and another handle and said pair of jaws to be on the elongate axis of the insertion section.

7. A surgical operation instrument according to claim 5, wherein, when said handle and another handle are rotated upward while maintaining a parallel state, said first and second driving rods are retracted simultaneously along the insertion section, directing said pair of jaws downward in a closed state.

8. A surgical operation instrument according to claim 5, wherein when said handle and another handle are rotated together from side to side, about the first pivot, one of said first and second driving rods is retracted, and another one is advanced, thereby rotating said pair of jaws from side to side.

9. A surgical operation instrument according to claim 5, wherein, when said handle and another handle are opened or closed by rotating said another handle up or down relative to the handle, the third driving rod is advanced or retracted, allowing said pair of jaws to open or close.

10. A surgical operation instrument comprising:

an insertion section insertable into a body cavity, the insertion section having a distal end, a proximal end and an axis;

a treatment section provided at the distal end of the insertion section and including a pair of jaws which are openable/closable and which are rotatable relative to the axis of the insertion section;

an operation section provided at the proximal end of the insertion section, rotatable relative to the axis of the insertion section and including first and second handles which are openable/closable; and

a driving rod assembly which connects the treatment section and the operation section together and which is advanced or retracted in an axial direction of the insertion section,

an opening/closing operation of the first and second handles causing an advancing/retracting movement of the driving rod assembly in such a manner as to open/close the jaws of the treatment section, and

a rotation of the operation section causing the advancing/retracting movement of the driving rod in such a manner as to rotate the treatment section relative to the axis of the insertion section;

wherein, said first handle is rotatable from side to side relative to a first coupling member, with a first pivot as a support point, and said second handle is rotatable upward or downward relative to the first handle.

11. A surgical operation instrument according to claim 10, wherein said driving rod assembly includes a pair of driving rods, and said first handle is coupled to the treatment section by said pair of driving rods and allows the jaws of the treatment section to rotate from side to side and up and down.

12. A surgical operation instrument according to claim 11, wherein, when the first and second handles are rotated upward while maintaining a parallel state, said pair of driving rods are retracted simultaneously along the insertion section, directing said pair of jaws downward in a closed state.

13. A surgical operation instrument according to claim 11, wherein, when the first and second handles are rotated together from side to side, with a pivot as a support point, one of said pair of driving rods is retracted, and another one is advanced, thereby rotating said pair of jaws from side to side.

14. A surgical operation instrument according to claim 10, wherein said driving rod assembly includes a driving rod, and said second handle is coupled to the treatment section by the driving rod and allows the jaws of the treatment section to open or close.

15. A surgical operation instrument according to claim 10, wherein said driving rod assembly includes a driving rod, and the second handle is rotated downward relative to the first handle, with the second pivot as a support point, and becomes parallel to the first handle, the driving rod is retracted, allowing said pair of jaws to close and linearly extend, and allowing the first and second handles and said pair of jaws to be on the axis of the insertion section.

16. A surgical operation instrument comprising:

an insertion section including first, second and third driving rods, each having distal and proximal end portions, the insertion section having an elongated axis along the driving rods,

a pair of jaws;

a coupling section for connecting the distal end portions of the first to third driving rods to the pair of jaws so that the jaws are open or close, and are rotated in a first plane including the elongated axis and a second plane normal to the first plane, and

two handles connected to the proximal end portions of the first to third driving rods to move the first driving rod to open or close the jaws, to simultaneously move the second and third driving rods to rotate the jaws in the first plane and to relatively move the second and third driving rods to rotate the jaws in the second plane.