Surgical device

• US 20070208375A1
• Filed: 02/23/2006
• Published: 09/06/2007
• Est. Priority Date: 02/23/2006
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Hoshino, Takeshi, Maruyama, Yukinobu, Nishizawa, Kouji
• Application Number:
  US11/359,375
• Publication Number:
  US 20070208375A1
• Time in Patent Office: Days
• US Class Current: 606/205
• CPC Class Codes: A61B 17/29 Forceps for use in minimally invasive surgery
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• CPC Class Codes: A61B 2017/00438 connectable to a finger
• CPC Class Codes: A61B 2017/291 the position of the handle being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2925 Pistol grips
• CPC Class Codes: A61B 2017/2927 the angular position of the head being adjustable with respect to the shaft
• CPC Class Codes: A61B 2017/2939 Details of linkages or pivot points
• CPC Class Codes: A61B 2034/715 Cable tensioning mechanisms for removing slack
• CPC Class Codes: A61B 34/70 Manipulators specially adapted for use in surgery
• CPC Class Codes: A61B 34/71 Manipulators operated by drive cable mechanisms

Abstract

The invention provides a surgical device which can control a position and an attitude of a multi degree of freedom type grip portion (forceps) in a dummy manner on the basis of an operation of an operator in an operating portion. In a surgical device provided with a leading end joint portion having a leading end grip portion, a near-side joint portion having an operation portion, a handle portion supporting the operation portion, and an arm portion storing a wire for linking motions of the leading end joint portion and the near-side joint portion, the leading end joint portion is moved downward and upward by operating the operation portion and the handle portion upward and downward around the near-side joint portion, and the leading end joint portion is moved rightward and leftward by operating the operation portion and the handle portion leftward and rightward, thereby making the leading end joint portion execute a swing motion, and the leading end grip portion is opened and closed by opening and closing finger rests of the operation portion.

Claims

1. A surgical device comprising:

a leading end joint portion having a leading end grip portion;

a near-side joint portion having an operation portion;

a handle portion supporting said operation portion; and

an arm portion storing a wire for linking motions of said leading end joint portion and said near-side joint portion,

wherein said leading end joint portion is moved downward and upward by operating said operation portion and said handle portion upward and downward around said near-side joint portion, and said leading end joint portion is moved rightward and leftward by operating said operation portion and said handle portion leftward and rightward, thereby making said leading end joint portion execute a swing motion, and

wherein said leading end grip portion is opened and closed by opening and closing said operation portion.

2. A surgical device as claimed in claim 1, wherein a pair of rolling contact means achieving a rolling contact are provided in said leading end joint portion and said near-side joint portion,

wherein a pulley is provided in one rolling contact means of said pair of rolling contact means in said leading end joint portion and said near-side joint portion, said leading end grip portion is attached to said pulley in said leading end joint portion and said operation portion is attache to said pulley in said near-side joint portion, and a wire is wound around said pulley of said leading end joint portion and said near-side joint portion,

wherein a wire is wound around the other rolling contact means in said pair of rolling contact means in said leading end joint portion and said near-side joint portion,

said leading end joint portion is swung on the basis of a rotational drive via the wire in the other rolling contact means in said pair of rolling contact means and a rotational drive via the wire in said pulley, by moving said operation portion and said handle portion upward and downward, and rightward and leftward, and

wherein said leading end grip portion is opened and closed on the basis of a rotational drive via the wire in said pulley, by opening and closing said operation portion.

3. A surgical device as claimed in claim 1, wherein said operating portion is provided with two opening and closing means which are energized with each other in a rotation releasing direction.

4. A surgical device as claimed in claim 2, wherein said operating portion is provided with two opening and closing means which are energized with each other in a rotation releasing direction.

5. A surgical device as claimed in claim 1, wherein said operating portion is constituted by a spring material having an approximately rhomboid shape with a cut line in one corner, and is provided with an opening and closing means pinching a bulge portion of said approximately rhomboid shape.

6. A surgical device as claimed in claim 2, wherein said operating portion is constituted by a spring material having an approximately rhomboid shape with a cut line in one corner, and is provided with an opening and closing means pinching a bulge portion of said approximately rhomboid shape.

8. A surgical device as claimed in claim 2, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

9. A surgical device as claimed in claim 3, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

10. A surgical device as claimed in claim 4, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

11. A surgical device as claimed in claim 5, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

12. A surgical device as claimed in claim 6, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

13. A surgical device as claimed in claim 1, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

14. A surgical device as claimed in claim 2, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

15. A surgical device as claimed in claim 3, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

16. A surgical device as claimed in claim 4, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

17. A surgical device as claimed in claim 5, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

18. A surgical device as claimed in claim 6, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

20. A surgical device as claimed in claim 8, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

21. A surgical device as claimed in claim 9, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

22. A surgical device as claimed in claim 10, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

23. A surgical device as claimed in claim 11, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

24. A surgical device as claimed in claim 12, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

7. A surgical device as claimed in claim l, wherein said arm portion includes a tension adjusting mechanism adjusting a tension of said wire operating said leading end joint portion and said near-side joint portion in an interlocking manner, and

wherein a stable position of said near-side joint portion is held by connecting an expanding and compressing elastic body to a portion between said tension adjusting mechanism and said near-side joint portion.

19. A surgical device as claimed in claim 7, wherein a grip portion held by a palm is provided in an extending manner in said handle portion.

25. A surgical device comprising:

a leading end joint portion having a leading end grip portion;

a near-side joint portion having an operation portion; and

an arm portion storing a wire for linking motions of said leading end joint portion and said near-side joint portion,

wherein said leading end joint portion is moved downward and upward by operating said operation portion upward and downward around said near-side joint portion, and said leading end joint portion is moved rightward and leftward by operating said operation portion leftward and rightward, thereby making said leading end joint portion execute a swing motion, and

wherein said leading end grip portion is opened and closed by opening and closing said operation portion.

26. A surgical device as claimed in claim 25, wherein said operating portion is constituted by a pair of members capable of rotationally opening and closing only by an operation of the inserted finger and capable of holding said surgical device.