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.
Patent No.:
Date of Patent:
Jan. 24, 2017
Filed:
Mar. 05, 2013
Ethicon Endo-surgery, Inc., Cincinnati, OH (US);
David C. Yates, West Chester, OH (US);
Frederick E. Shelton, IV, Hillsboro, OH (US);
Bret W. Smith, Kings Mills, OH (US);
Brett E. Swensgard, West Chester, OH (US);
Ryan J. Laurent, Liberty Township, OH (US);
Ethicon Endo-Surgery, LLC, Guaynabo, PR (US);
Abstract
In various embodiments, a surgical stapler is disclosed. The stapler comprises a handle, a shaft, and a surgical end effector extending from the shaft. The stapler further comprises a firing member configured to move through a plurality of positions during a firing stroke, an electric motor configured to drive the firing member during the firing stroke, and a control system for controlling the electric motor. The control system comprises a battery and a pulse frequency modulation circuit configured to control the frequency of pulses supplied from the battery to the electric motor, wherein the pulse frequency modulation circuit is configured to optimize the speed applied to the firing member.