Patents by Inventor Lewis T. Cronis

Lewis T. Cronis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tissue sensing circuit for surgical instrument
    Patent number: 11896327
    Abstract: A surgical instrument includes an end effector having first and second jaws that cooperate to clamp in vivo material of a patient, and a first electrode that delivers an electrical signal to the in vivo material. The instrument further includes a second electrode that receives the electrical signal from the first electrode, and an electrical circuit housed within the end effector. The electrical circuit includes a microcontroller that controls delivery of the electrical signal to the first electrode, where the electrical signal passes through the in vivo material to the second electrode. The electrical circuit also determines an electrical impedance of the in vivo material and determines at least one of a presence or absence of tissue in the in vivo material, or a characteristic of tissue in the in vivo material.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: February 13, 2024
    Assignee: Cilag GmbH International
    Inventors: Eyal Aklivanh, Sean C. Eves Knudsen, Darshini Balamurugan, Lewis T. Cronis, Zhijun Liu