Patent · US Active

Hand-held electromechanical surgical instruments

US11839376B2 · kind B2 · utility

0Cited by

11References

18Claims

0Family size

Assignee

Covidien LP · US

Inventors

Shouwei Li · Shanghai, CN
Yezhou Wu · Shanghai, CN
Fen Du · Shanghai, CN
Zhihua Zhang · Lo Wu, CN

Key dates

Filing date	Aug 30, 2019
Grant date	Dec 12, 2023
Priority date	—
Expiry date	Nov 4, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B2017/2929
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A handle assembly (12) of a hand-held surgical instrument (10) includes a handle housing (26), a motor (36), and a dual thread lead screw (46) operably coupled to the motor (36) and configured to move proximally and/or distally in response to an actuation of the motor (36). A first thread pitch of the lead screw (46) is suitable for effecting a closing of jaw members (20a, 20b) of an end effector (20), and a second thread pitch of the lead screw (46) is suitable for effecting a stapling function of the end effector (20).

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