Electrically Self-Powered Surgical Instrument With Cryptographic Identification of Interchangeable Part

Abstract

A surgical instrument includes a surgical end effector having a receiving portion for removably receiving therein an interchangeable part. The receiving portion has a communication connection. A handle connected to the end effector actuates the end effector. The handle has a controller electrically connected to the communication connection for authenticating the interchangeable part when placed at the end effector. An interchangeable part is removably connected to the receiving portion and has an encryption device electrically removably connected to the communication connection when placed at the receiving portion. The encryption device authenticates the interchangeable part when queried by the electric controller.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is:[0002]a continuation-in-part of U.S. patent application Ser. No. 13 / 889,931, filed May 8, 2013;[0003]a continuation-in-part of U.S. patent application Ser. No. 13 / 798,369, filed Mar. 13, 2013;[0004]a continuation-in-part of U.S. patent application Ser. No. 13 / 743,179, filed Jan. 16, 2013;[0005]a continuation-in-part of U.S. patent application Ser. No. 13 / 622,819, filed Sep. 19, 2012;[0006]a continuation-in-part of U.S. patent application Ser. No. 13 / 611,881, filed Sep. 12, 2012;[0007]a continuation-in-part of U.S. patent application Ser. No. 13 / 229,076, filed Sep. 9, 2012;[0008]a continuation-in-part of U.S. patent application Ser. No. 12 / 793,962, filed Jun. 4, 2010;[0009]a continuation of U.S. patent application Ser. No. 12 / 778,800, filed May 12, 2010;[0010]a continuation-in-part of U.S. patent application Ser. No. 12 / 102,464, filed Apr. 14, 2008;[0011]a continuation-in-part of U.S. patent application Ser. No. 12 / 102,...

AI Technical Summary

Benefits of technology

[0019]The invention overcomes the above-noted and other deficiencies of the prior art by providing a electrically self-powered surgical device that uses the self-power to effect a medical procedure. For example, in a linear endocutter, the electric on-board power can position an anvil and stapler cartridge with respect to one another about tissue to be stapled and / or cut, and, after closing the anvil and stapler cartridge with respect to one another, firing and securing the staples at the tissue (and / or cutting the tissue). Further, the electrically self-powered surgical device can indicate to the user a user-pre-defined level of compressive force being imparted upon the tissue prior to firing the staples. The present invention also provides methods for operating the electric surgical stapling device to staple when optimal tissue compression (OTC) exists. Also provided is a cryptographic identification of disposable parts, such as the staple cartridge. Further provided is a manual release device that allows recovery from a partial actuation or a jam.

[0020]An offset-axis configuration for the two anvil and staple firing sub-assemblies creates a device that can be sized to comfortably fit into a user's hand. It also decreases manufacturing difficulty by removing previously required nested (co-axial) hollow shafts. With the axis of the anvil sub-assembly being offset from the staple firing sub-assembly, the length of the threaded rod for extending and retracting the anvil can be decreased by approximately two inches, thereby saving in manufacturing cost and generating a shorter longitudinal profile.

Problems solved by technology

It also decreases manufacturing difficulty by removing previously required nested (co-axial) hollow shafts.

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