Surgical instrument steering inputs
US11857284B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2021 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/031
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument includes: an adjustable end effector; an elongated instrument shaft defining an internal bore; and a drive assembly including a housing coupled to an end of the instrument shaft and an input device configured to facilitate controlled adjustment of the end effector via a drive cable extending along the bore of the instrument shaft. The input device includes: a drive shaft attached to a first portion of the drive cable, the drive shaft including an upstanding stem portion having a radially tapered outer surface; and a capstan attached to a second portion of the drive cable, the capstan defining an internal bore sized to receive the stem portion of the drive shaft, at least a lower portion of the internal bore having a radially tapered inner surface. The capstan and drive shaft are configured to transition from a disengaged state to an engaged state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.