End effector, device for controlling a robot end effector and medical telemanipulation system

Patent metadata

Field	Value
Publication number	US-12290941-B2
Application number	US-202217869849-A
Country	US
Kind code	B2
Filing date	Jul 21, 2022
Priority date	Jul 28, 2021
Publication date	May 6, 2025
Grant date	May 6, 2025

Abstract

An exemplary embodiment relates to an end effector ( 1 ), in particular a robot end effector, a device ( 20 ) with an operating element ( 25 ) for controlling an end effector ( 1 ), a robot with at least one end effector ( 1 ) and a medical telemanipulation system.

First claim

The invention claimed is:

1. An end effector, in particular a robot end effector comprising:
a first branch,
a second branch, and
a component at least partially accommodating the two branches,
wherein the first branch is displaceable relative to the second branch along a direction of longitudinal extension of the component, and the first branch is connected to a first rope configured for relative displacement, wherein a portion of the first rope is arranged in a rotationally fixed manner in a screw sleeve, and
wherein the second branch is rotatably mounted on the component and configured to clamp an object between the two branches, and the second branch is rotatably connected to a displacement element to twist the second branch or the second branch bears rotatably on the displacement element.

2. The end effector according to claim 1 , wherein, in order to displace the first branch relative to the second branch, the first branch has a section which is formed as a counterpart to a section of the displacement element.

3. The end effector according to claim 1 , wherein the displacement element is connected to a second rope.

4. The end effector according to claim 1 , wherein the end effector is configured to displace the displacement element in the direction of longitudinal extension of the component, when the second rope is displaced.

5. The end effector according to claim 1 , wherein the first rope is rotatably connected to a first end of the first branch, wherein the screw sleeve is rotatably arranged in the displacement element and wherein for displacement of the displacement element the displacement element has a counter-thread designed to complement the thread of the screw sleeve.

6. The end effector according to claim 5 , wherein the first rope is arranged in a rope sleeve having a collar and the first rope is rotationally fixed and connected to the rope sleeve.

7. The end effector according to claim 5 , wherein the screw sleeve has a collar and the screw sleeve is arranged rotatably in the component.

8. The end effector according to claim 3 , wherein the end effector is set up to displace the displacement element when the first rope rotates about a longitudinal axis of the first rope, in the direction of longitudinal extension of the component.

9. A device with an operating element configured to control an end effector according to claim 1 .

10. The device according to claim 9 , wherein the operating element has a housing and two limbs arranged at the housing and wherein at least one of the limbs has an actuator, wherein the actuator is configured to displace the first branch relative to the second branch.

11. The device according to claim 10 , wherein the actuator is a slider, wherein the slider is displaceable along the longitudinal extension of the limb.

12. The device according to claim 11 , wherein the limb comprises one or more of:
a corrugation,
at least one stop configured to limit a displacement of the slider,
a spring configured to return the slider to an initial position, and
a magnet is integrated into the slider and a displacement sensor is integrated into the limbs.

13. The device according to claim 10 , wherein the actuator is a friction wheel, wherein the friction wheel is arranged in or at the limb.

14. The device according to claim 13 , wherein one or more of:
the friction wheel is arranged in a recess of the limb,
the limb or the friction wheel comprises at least one stop configured to limit a rotation of the friction wheel,
a spring is configured to return the friction wheel to an initial position, and
an angle sensor is integrated into the limbs.

15. A robot with at least one end effector according to claim 1 .

16. A medical telemanipulation system comprising at least one device according to claim 9 .

17. A robot with at least one device according to claim 9 .

18. A medical telemanipulation system comprising a robot according to claim 15 .

19. The device according to claim 1 , wherein the end effector is a robot end effector.

Assignees

• Storz Karl Se & Co Kg

Inventors

• Stefan Jochen
• Grüner Sven Axel

Classifications

• A61B2090/034

  abutting on parts of the device itself · CPC title

• A61B2090/067

  for measuring angles · CPC title

• A61B2034/301

  for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes · CPC title

• A61B34/30

  Surgical robots · CPC title

• A61B34/74

  Manipulators with manual electric input means · CPC title