The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 31, 2023

Filed:

Aug. 24, 2018
Applicant:

Covidien Lp, Mansfield, MA (US);

Inventors:

Yanli Wan, Shanghai, CN;

Zhaokai Wang, Shanghai, CN;

Xiliang Zhang, Shanghai, CN;

Assignee:

Covidien LP, Mansfield, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 17/00 (2006.01); A61B 17/115 (2006.01);
U.S. Cl.
CPC ...
A61B 17/1155 (2013.01); A61B 2017/00398 (2013.01);
Abstract

A powered circular stapling device () includes a transfer switch assembly () for a transmission assembly () to selectively direct power between clamping and firing mechanisms of the stapling device (). The transfer switch assembly () includes a carriage (), a worm gear assembly (), and first and second biasing mechanisms (). The worm gear assembly () is supported on the carriage () and movable in relation to the carriage () to allow the worm gear assembly () to engage with a first or second gear () of the transmission assembly (). The biasing mechanisms () allow the worm gear assembly () to move in relation to the carriage () when the gear teeth of the worm gear () are misaligned with the gear teeth of one of the first and second gears () of the transmission assembly (), to allow the gear teeth of the worm gear () to move into alignment with the gear teeth of the other one of the first and second gears () of the transmission assembly ().


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