Electrosurgical instrument jaw structure with cutting tip

A technology of electrosurgical instruments and jaws, applied in the field of systems and medical instruments, can solve the problems of tissue dehydration, inadvisability, thermal damage, etc.

Inactive Publication Date: 2011-07-06
SURGRX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Local dehydration and charring of tissue occurs almost instantaneously when tissue impedance is elevated, which in turn can lead to uneven sealing within the tissue
Typical RF jaws currently available spread the RF density laterally from where they are clamped into the tissue, causing unwanted lateral thermal damage, further creating undesirable effects

Method used

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  • Electrosurgical instrument jaw structure with cutting tip
  • Electrosurgical instrument jaw structure with cutting tip
  • Electrosurgical instrument jaw structure with cutting tip

Examples

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Embodiment Construction

[0040] Before elaborating the present invention in detail, it should be pointed out that the application or use of the present invention is not limited to the construction and arrangement of the components shown in detail in the drawings and detailed description. The exemplary embodiments of the present invention can be implemented or incorporated in other embodiments, variations, and modifications, and can be implemented or carried out in various ways. Furthermore, the terms and expressions used herein are chosen for the purpose of conveniently describing the exemplary embodiments of the present invention to the reader and are not intended to limit the present invention unless otherwise specified.

[0041] Furthermore, it should be understood that any one or more of the embodiments, expressions of embodiment, examples, etc. described below may be combined with any one or more of the other embodiments, expressions of embodiment, examples, etc. described below.

[0042] figure...

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Abstract

An electrosurgical instrument for scoring, welding and transecting tissue is provided. The electrosurgical instrument comprises first and second openable-closeable jaws and at least one scoring electrode extending from a distal end of at least one of the first and second openable-closeable jaws. The first and second openable-closeable jaws comprises first and second conductive tissue engaging surfaces, respectively, and first and second insulating members, respectively. The scoring electrode is coupled with at least one of the first and second insulating members. The at least one scoring electrode can be activated independently from the first and second openable-closeable jaws so that the electrosurgical instrument can independent score tissue and weld tissue.

Description

[0001] Cross references to related patent applications [0002] This patent application claims priority to US Provisional Application No. 61 / 087,001, filed August 7, 2008, the contents of which are incorporated herein in their entirety. [0003] Statement Regarding Federally Funded Research and Development Programs [0004] Not applicable. technical field [0005] The present invention relates to medical devices, systems and methods. More particularly, embodiments of the present invention relate to surgical instruments, electrosurgical instruments, and surgical jaw structures for scoring, welding, sealing, and severing tissue. Background technique [0006] A variety of energy sources, such as radio frequency (RF) sources, ultrasound sources, and lasers, have been developed for coagulating, sealing, or joining together tissue masses during open and laparoscopic surgery. A preferred form of tissue sealing entails the application of electrical energy to the captured tissue t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14
CPCA61B2018/00404A61B2018/00083A61B2018/1497A61B2018/00601A61B2018/00619A61B18/1445A61B18/08A61B2018/144
Inventor A·米里尔R·J·莱尔德
Owner SURGRX
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