Holding device for medical instruments

Patent metadata

Field	Value
Publication number	US-9429204-B2
Application number	US-96676210-A
Country	US
Kind code	B2
Filing date	Dec 13, 2010
Priority date	Dec 23, 2009
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A holding device for medical instruments, having a bracket on which at least one medical instrument can be affixed, at least one joint to position the bracket and a weight-relieving system to compensate the bracket load. The holding device is of compact and light structure and for cleaning purposes is completely autoclavable together with the bracket. The weight-relieving system is configured as a resetting element that is coupled with the bracket and is made of a material that essentially includes a plateau stress.

First claim

What is claimed is:

1. A holding device for medical instruments, the holding device comprising:
a bracket on which at least one medical instrument can be affixed,
at least one joint to position the bracket, and
a weight-relieving system to compensate a bracket load, the weight-relieving system being configured as a resetting element coupled with the bracket and made of a material that comprises a plateau stress, the resetting element being pre-tensed by the bracket load until the resetting element reaches the plateau stress, wherein the resetting element is mounted at one end in a non-movable configuration on a first bracket part and at an opposite end on a second bracket part that is displaceable with respect to the first bracket part by the at least one joint;
wherein the resetting element is disposed in a guide tube that provides guidance of said weight-relieving system, wherein the guide tube is slidable along an axis of a housing of the first bracket part; and
wherein the resetting element is mounted to the displaceable second bracket part by a flexible element, the flexible element coupled to both the resetting element and the displaceable second bracket part provides a uniform, non-jerking transmission of forces exerted by the displaceable second bracket part to the resetting element.

2. The holding device according to claim 1 , wherein the material of the resetting element, which comprises the plateau stress, is selected from a group comprising a CuZnAl, FeNiCoTi and NiTi alloy.

3. The holding device according to claim 2 , wherein the material that comprises the plateau stress is a shape-memory alloy.

4. The holding device according to claim 3 , wherein the shape-memory alloy that constitutes the resetting element is an NiTiNol alloy.

5. The holding device according to claim 1 , wherein the resetting element, bridging the at least one joint, is coupled with the bracket.

6. The holding device according to claim 1 , wherein the resetting element is configured as a cable winch.

7. The holding device according to claim 1 , wherein the resetting element is configured as a spring element.

8. The holding device according to claim 6 , wherein tensing of the cable winch by the slidable guide tube is adjustable.

9. The holding device according to claim 1 , wherein the flexible element is configured as a link chain.

10. The holding device according to claim 1 , wherein:
the first bracket part has an abutment to which is connected the one end of the resetting element that is mounted in the non-movable configuration; and
the guide tube is configured to be pressed away from the abutment to adjust a tensing of the resetting element.

11. A holding device for medical instruments, the holding device comprising:
a bracket on which at least one medical instrument can be affixed,
at least one joint to position the bracket, and
a weight-relieving system to compensate a bracket load, the weight-relieving system being configured as a resetting element coupled with the bracket and made of a material that comprises a plateau stress, the resetting element being pre-tensed by the bracket load until the resetting element reaches the plateau stress, wherein the resetting element is mounted at one end in a non-movable configuration on a first bracket part and at an opposite end on a second bracket part that is displaceable with respect to the first bracket part by the at least one joint;
wherein the resetting element is disposed in a guide tube that provides guidance of said weight-relieving system, wherein the guide tube is slidable along an axis of a housing of the first bracket part; and
wherein the resetting element within the guide tube is positioned on an outer contour of the first bracket part.

12. The holding device according to claim 11 , wherein the material that comprises the plateau stress is a shape-memory alloy.

13. The holding device according to claim 11 , wherein the resetting element, bridging the at least one joint, is coupled with the bracket.

14. The holding device according to claim 11 , wherein the resetting element is configured as a cable winch.

15. The holding device according to claim 14 , wherein tensing of the cable winch by the slidable guide tube is adjustable.

16. The holding device according to claim 11 , wherein the resetting element is configured as a spring element.

17. The holding device according to claim 11 , wherein the flexible element is configured as a link chain.

18. The holding device according to claim 11 , wherein:
the first bracket part has an abutment to which is connected the one end of the resetting element that is mounted in the non-movable configuration; and
the guide tube is configured to be pressed away from the abutment to adjust a tensing of the resetting element.

Assignees

• Stefan Jochen
• Bacher Uwe
• Storz Karl Gmbh & Co Kg

Inventors

• Stefan Jochen
• Bacher Uwe

Classifications

• F16M13/02

  for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle · CPC title

• F16M11/10

  around a horizontal axis {(F16M11/12 takes precedence)} · CPC title

• F16F1/021 Primary

  characterised by their composition, e.g. comprising materials providing for particular spring properties (composition and manufacture of clock or watch springs G04B1/145) · CPC title

• A61B2090/5025

  with a counter-balancing mechanism · CPC title

• A61B1/00149

  using articulated arms · CPC title