Surgical hand grip and a surgical tubular shaft instrument with a surgical hand grip

Patent metadata

Field	Value
Publication number	US-9561047-B2
Application number	US-201414287314-A
Country	US
Kind code	B2
Filing date	May 27, 2014
Priority date	Dec 2, 2011
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A surgical hand grip for a surgical tubular shaft instrument is provided. The hand grip includes a coupling device for coupling to a tubular shaft tool having a tubular shaft and a force transmission element movable back and forth relative thereto. The coupling device has a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft. A gripping device is connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing the mutual relative spacing between the coupling element and the connecting element. The hand grip has a guiding device with a guiding body for guiding the coupling element during the transfer from the non-actuating position into the at least one actuating position along a grip axis independently of the disposition of the gripping device during the transfer.

First claim

The invention claimed is:

1. A surgical hand grip for a surgical tubular shaft instrument, comprising:
a coupling device for coupling to a tubular shaft tool which has a tubular shaft and a force transmission element that is movable back and forth relative to the tubular shaft,
the coupling device comprising a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft,
a gripping device which is operatively connected to the coupling element and is transferable from a non-actuating disposition into at least one actuating disposition and vice versa thereby changing a mutual relative spacing between the coupling element and the connecting element due to a transferral of the coupling element from a non-actuating position into at least one actuating position,
a grip axis defined by the hand grip, and
a guiding device comprising a guiding body for guiding the coupling element along the grip axis during a transfer of the coupling element from the non-actuating position into the at least one actuating position independently of the disposition of the gripping device during the transfer from the non-actuating disposition into the at least one actuating disposition,
wherein:
the guiding body comprises an axial sleeve and defines the grip axis,
the coupling element is mounted in the sleeve in a displaceable manner and is guided by the sleeve during the transfer from the non-actuating position into the at least one actuating position,
the sleeve comprises an axial slit-like through opening along at least a section of a displacement path which is traversed by the coupling element relative to the sleeve during the transfer from the non-actuating position into the at least one actuating position, and vice versa,
the sleeve further comprises a window-like through opening which extends over a larger angular range in a circumferential direction of the grip axis than the slit-like through opening, and
the coupling element, in order to couple the force transmission element thereto or to decouple the force transmission element therefrom is configured to be disengaged relative to the guiding body transversely or at an angle with respect to the grip axis and thereby partially engages in or passes through the window-like through opening.

2. A hand grip in accordance with claim 1 , wherein the window-like through opening is arranged on a distal side of the slit-like through opening.

3. A hand grip in accordance with claim 1 , wherein the slit-like through opening and the window-like through opening are arranged on a same side of the sleeve in the circumferential direction of the grip axis.

4. A hand grip in accordance with claim 1 , wherein the slit-like through opening and the window-like through opening merge into one another.

5. A hand grip in accordance with claim 1 , wherein the gripping device comprises a first gripping element which is mounted on the guiding body or on a mounting body that is connected to the guiding body such as to be pivotal about a pivotal axis that is oriented transversely relative to the grip axis.

6. A hand grip in accordance with claim 5 , wherein a proximal end of the first gripping element is pivotally mounted on the guiding body or on the mounting body.

7. A hand grip in accordance with claim 5 , wherein the first gripping element is fixable in the at least one actuating disposition.

8. A hand grip in accordance with claim 5 , wherein the hand grip comprises a linking element which is connected to the first gripping element at a first articulated joint such that it is pivotal about a first joint axis that is oriented transversely relative to the grip axis and is connected to the coupling element at a second articulated joint such that it is pivotal about a second joint axis that is oriented transversely relative to the grip axis.

9. A hand grip in accordance with claim 5 , wherein the gripping device comprises a second gripping element which is fixed immovably to the guiding body or to the mounting body.

10. A hand grip in accordance with claim 9 , wherein at least one of the first gripping element and the second gripping element is shell-like and surrounds the guiding body in the circumferential direction of the grip axis at least in sections.

11. A hand grip in accordance with claim 1 , wherein:
the coupling element comprises a moving member which is guided by the guiding body in a moveable manner and a receptacle member which is coupled to the moving member and comprises a receptacle for the force transmission element, and
the coupling element is transferable from a coupling disposition into an uncoupling disposition and vice versa, wherein an entry opening of the receptacle for the force transmission element is axially blocked in the coupling disposition and the entry opening is axially freed in the uncoupling disposition.

12. A hand grip in accordance with claim 11 , wherein the receptacle comprises a blind hole which is formed in the receptacle member incorporating a side wall slit in the axial direction and which is oriented transversely relative to the grip axis.

13. A hand grip in accordance with claim 11 , wherein the moving member and the receptacle member are pivotal relative to each other about a disengaging axis which is oriented transversely relative to the grip axis for transferring the coupling element from the coupling disposition into the uncoupling disposition and vice versa.

14. A hand grip in accordance with claim 13 , wherein the disengaging axis and the grip axis define a plane.

15. A hand grip in accordance with claim 13 , wherein the receptacle member is pivotal away from the grip axis or towards the grip axis for transferring the coupling element from the coupling disposition into the uncoupling disposition and vice versa.

16. A hand grip in accordance with claim 11 , wherein the coupling element is moveable along the grip axis for the transferral from the coupling disposition into the uncoupling disposition.

17. A hand grip in accordance with claim 16 , wherein the guiding device comprises stop members for limiting a path of movement of the coupling element along the grip axis during the transferral from the coupling disposition into the uncoupling disposition.

18. A hand grip in accordance with claim 11 , wherein the guiding device comprises guidance members for guiding the coupling element when being transferred from at least one of the uncoupling disposition into the coupling disposition and from the coupling disposition into the uncoupling disposition.

19. A hand grip in accordance with claim 1 , wherein the coupling element is cylindrical or substantially cylindrical at least in sections thereof and is oriented coaxially with the grip axis.

20. A hand grip in accordance with claim 1 , wherein the coupling element is slit axially at least in sections thereof.

21. A surgical tubular shaft instrument, comprising:
a hand grip, and
at least one tubular shaft tool which cooperates with the hand grip,
wherein the hand grip comprises:
a coupling device for coupling to the tubular shaft tool which has a tubular shaft and a force transmission element that is movable back and forth relative to the tubular shaft,
the coupling device comprising a coupling element for coupling to the force transmission element and a connecting element for connecting to the tubular shaft,
a gripping device which is operatively connected to the coupling element and is transferable from a non-actuating disposition

Assignees

• Aesculap Ag

Inventors

• Huber Christian
• Morales Pedro

Classifications

• A61B17/2909 Primary

  Handles · CPC title

• A61B2017/292

  connection of actuating rod to handle, e.g. ball end in recess · CPC title

• A61B2017/305

  Tweezer like handles with tubular extensions, inner slidable actuating members and distal tools, e.g. microsurgical instruments · CPC title

• B25G3/00

  Attaching handles to the implements · CPC title

• A61B2017/2946

  Locking means · CPC title