Patent · US Active

Torque-limiting assembly for a surgical powertool

US9937009B2 · kind B2 · utility

3Cited by

9References

17Claims

0Family size

Assignee

Stryker European Holdings, LLC · US

Inventors

Stephan Schroeder · Munich, DE
Kevin Soldan · Solothurn, CH

Key dates

Filing date	Mar 30, 2012
Grant date	Apr 10, 2018
Priority date	—
Expiry date	May 6, 2033

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2090/037
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A torque-limiting assembly for a surgical powertool has an input shaft and an output shaft. Two relatively rotatable parts of the assembly are configured to be locked against relative rotation by at least one shearable piece for torque transfer between the input shaft and the output shaft up to a torque limit. The assembly further comprises at least one shear off structure rotationally fixed to one of the two relatively rotatable parts for shearing off a portion of the at least one shearable piece above the torque limit so as to unlock the two relatively rotatable parts for relative rotation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.