Compact counter balanced arms
AssigneeIntuitive Surgical Operations, Inc.
InventorThomas G. Cooper
Life of this patent
Estimating the term…
Abstract
In one embodiment of the invention, a counter balanced arm is disclosed including, a first link having a first rotating transmission device, a second link having a first rotating transmission device and a compression spring, a third rotating transmission device coupled between the first and second links, and a cable routed over the rotating transmission devices coupled between the second link and the compression spring. The compression spring forms a tension in the cable to counter balance a load applied to an end of the second link of the counter balanced arm.
Claims9
1-6. (canceled)
A counter-balanced arm comprising:
- a first link having a first rotating transmission device rotatably coupled thereto, the first link to couple to a support mechanism at a first end;
- a second link having a second rotating transmission device rotatably coupled thereto and a first compression spring having a first end coupled thereto, the second link pivotally coupled to the first link at a first pivot point;
- a third rotating transmission device coupled between the second link and the first link at the first pivot point;
- and
- a cable coupled to the second link, routed over the third rotating transmission device, the first rotating transmission device, and the second rotating transmission device, and coupled to a second end of the first compression spring to form a tension in the cable to counter balance a load applied to an end of the second link.
13-37. (canceled)
38-44. (canceled)
Dependencies are inferred from the claim text.