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An articulating ablation and division device with blood flow sensing capability

A blood flow and sensor technology, applied in tourniquets, parts of surgical instruments, heating surgical instruments, etc., can solve problems such as high-damage internal blood vessels in the liver parenchyma, reduce exposure, prevent excessive ablation, and reduce the risk of bleeding. Effect

Inactive Publication Date: 2013-05-08
NAT UNIV OF SINGAPORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Removal of tumors located deep within the liver tissue carries a high risk of injury and uncontrolled bleeding from blood vessels within the liver parenchyma

Method used

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  • An articulating ablation and division device with blood flow sensing capability
  • An articulating ablation and division device with blood flow sensing capability
  • An articulating ablation and division device with blood flow sensing capability

Examples

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Embodiment Construction

[0016] The following is a description of exemplary embodiments of the present invention.

[0017] Embodiments of the present invention relate to medical devices that can be used to simultaneously coagulate and cut biological tissue. Embodiments of the invention can be used to perform a variety of medical procedures across multiple regions of the organism (eg, liver, abdominal cavity, and pelvic cavity). Although the terms "hepatectomy" and "laparoscopic resection" are used herein to describe exemplary embodiments of the invention, those skilled in the art recognize that embodiments of the invention are not limited to hepatectomy and / or laparoscopic surgery of the liver, And can be used in a wide range of operations / applications (typically medical procedures).

[0018] As used herein, the term "procedure" is a broad term used in its ordinary sense, which includes, but is not limited to, referring to examining and / or treating a condition (such as a disease or injury) or helping...

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PUM

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Abstract

A laparoscopic liver resection device is described. The device combines the Radiofrequency Ablation (RFA) technology with a cutting mechanism, a blood- flow sensor and a flexible actuation mechanism to simultaneously coagulate and cut the liver tissue and detect the presence of blood flow to confirm avascularity. The present invention eliminates the risk of excess bleeding due to cutting too deep and reduces recovery time and the time spent on re-coagulation of coagulated areas, thereby shortening duration of surgery. Also embodiments prevent excess ablation by stopping ablation activity on the target tissue as soon as insufficient or no blood flow in the target tissue is detected. Thus a closed loop control for a bloodless tissue / organ division method is provided.

Description

[0001] related application [0002] This application claims the benefit of US Provisional Application No. 61 / 344,283, filed June 23, 2010, the entire teachings of which are incorporated herein by reference. Background technique [0003] Laparoscopic surgery, also known as minimally invasive surgery, is a technique that provides access to the abdominal or pelvic cavity through small incisions. In typical laparoscopic surgery, a laparoscope is used. The laparoscope can be a telescoping rod-lens system or a charge-coupled device (CCD) coupled to a video camera. A nonflammable gas (eg, carbon dioxide) is injected into the abdominal or pelvic cavity and illuminated through a light source using a fiber optic cable system. Because the incisions are small, laparoscopic surgery minimizes post-operative pain and speeds up the recovery process. [0004] Laparoscopic surgical techniques may be used in resection to remove part of the liver. Typically, laparoscopic liver resection surge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/94A61B18/04A61B18/14
CPCA61B2018/00589A61B17/32A61B2017/00106A61B2017/00544A61B2018/143A61B18/082A61B18/1402A61B18/1815A61B2018/1455A61B2018/00958A61B2018/00642A61B2018/00708
Inventor 郑坚勇朱志光
Owner NAT UNIV OF SINGAPORE
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