Konstantkraftfeder für Robotische Chirurgische Werkzeuge

Details

Veröffentlichungs-Nr.

EP3476359

Aktenzeichen

EP18202685

Anmeldetag

25. Oktober 2018

Veröffentlichung

17. April 2024

Erteilung

17. April 2024

Rechtsraum

EP

IPC

A61B34/30A61B34/00

Abstract

A surgical tool includes a drive housing having an input shaft and a drive cable capstan arranged within the drive housing. The input shaft includes a drive gear and the drive cable capstan includes a driven gear intermeshed with the drive gear such that rotation of the input shaft rotates the drive cable capstan. An elongate shaft extends from the drive housing, and an end effector is operatively coupled to a distal end of the elongate shaft. A drive cable is coupled to the drive cable capstan and extends to the end effector. A spring assembly includes a winder drum and a constant force spring extending between the winder drum and the input shaft. The constant force spring provides a constant torque force that resists rotation of the input shaft and thereby prevents the drive cable from slackening.

Anmelder

Firma

Ethicon LLC

Land

🇵🇷 PR

Fachgebiete