Techniques for power delivery of energy-based surgical instruments

By using a radio frequency energy control system with different frequencies and voltages in surgical instruments, combined with an insulating coating and a spring biasing component, the problem of inaccurate energy control in existing technologies is solved, achieving efficient and precise tissue transection and hemostasis while reducing tissue damage.

CN122297076APending Publication Date: 2026-06-30CILAG GMBH INTERNATIONAL
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Patent Information

Application Number
CN202511989602.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2025-09-30
Filing Date
2025-12-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing energy-based surgical instruments struggle to achieve efficient and precise energy control during tissue transection and hemostasis, leading to tissue damage and increased trauma.

Method used

A system comprising energy-based surgical instruments and a coupled generator is employed to achieve precise control of tissue coagulation and transverse cutting processes by supplying radio frequency energy of different frequencies and voltages to the first and second electrode sections, combined with an insulating coating and a spring-biased section.

Benefits of technology

It enables efficient and precise control of tissue transection and hemostasis, reducing tissue damage and trauma, and improving the precision and safety of surgical procedures.

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Abstract

A system includes an energy-based surgical instrument having an end effector, the end effector having two electrodes. One of the electrodes has a plurality of electrode portions. A generator coupled to the surgical instrument supplies radio frequency (RF) energy to the electrode portions for a tissue coagulation process, and further supplies RF energy at a higher voltage or current to another electrode portion for a tissue transection process. The control element may monitor tissue impedance or tissue temperature. Other embodiments are described and claimed.
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