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Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression

a technology of biological tissue and energy, applied in the field of method and apparatus for applying energy to shrink hollow anatomical structure, can solve problems such as long occlusion, and achieve the effect of preventing coagulum formation and further enhancing the ligation

Inactive Publication Date: 2008-10-09
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is about a method and apparatus for shrinking a hollow anatomical structure, such as a vein, using energy. The invention involves pre-compressing and exsanguinating the structure while providing anesthetic and insulation benefits during the procedure. The method involves injecting fluid into the tissue surrounding the structure to induce tumescence of the tissue and compress the structure. An electrode is then placed in contact with the inner wall of the structure and energy is applied until the structure reaches its desired size. The invention also includes the use of tumescent anesthesia fluid to compress the vein and the use of self-constriction to further enhance the treatment. The invention provides a safer and effective way to shrink hollow anatomical structures.

Problems solved by technology

The electrode is then moved along a site within the selected length while continuously applying energy to result in a lengthy occlusion.

Method used

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  • Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression
  • Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression
  • Method and apparatus for applying energy to biological tissue including the use of tumescent tissue compression

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Embodiment Construction

[0043]As shown in the exemplary drawings, the invention is directed toward the intravenous treatment of veins using a catheter to deliver at least one electrode to a venous treatment site. As used herein, like reference numerals will designate similar elements in the various embodiments of the present invention to be discussed. In addition, unless otherwise noted, the term “working end” will refer to the direction toward the treatment site in the patient, and the term “connecting end” will refer to the direction away from the treatment site in the patient. The invention will be described in relation to the treatment of the venous system of the lower limbs. It is to be understood, however, that the invention is not limited thereto and may be employed intraluminally to treat veins in other areas of the body such as hemorrhoids, esophageal varices, and venous-drainage-impotence of the penis. Furthermore, although the invention will be described as using RF energy from the electrode, it...

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PUM

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Abstract

An electrode catheter is introduced into a hollow anatomical structure, such as a vein, and is positioned at a treatment site within the structure. Tumescent fluid is injected into the tissue surrounding the treatment site to produce tumescence of the surrounding tissue which then compresses the vein. The solution may include an anesthetic, and may further include a vasoconstrictive drug that shrinks blood vessels. The tumescent swelling in the surrounding tissue causes the hollow anatomical structure to become compressed, thereby exsanguinating the treatment site. Energy is applied by an electrode catheter in apposition with the vein wall to create a heating effect. The heating effect causes the hollow anatomical structure to become molded and durably assume the compressed dimensions caused by the tumescent technique. The electrode catheter can be moved within the structure so as to apply energy to a large section of the hollow anatomic structure. In a further aspect, the location of the electrodes is determined by impedance monitoring. Also, temperature sensors at the treatment site are averaged to determine the site temperature.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of application Ser. No. 10 / 872,646 filed on Jun. 21, 2004, which is a continuation of application Ser. No. 09 / 899,885 (now U.S. Pat. No. 6,752,803) filed on Jul. 6, 2001, which is a continuation of Ser. No. 09 / 267,127 (now U.S. Pat. No. 6,258,084) filed on Mar. 10, 1999, which is a continuation-in-part of application Ser. No. 09 / 138,472 (now U.S. Pat. No. 6,179,832) filed on Aug. 21, 1998, which is a continuation-in-part of application Ser. No. 08 / 927,251 (now U.S. Pat. No. 6,200,312) filed on Sep. 11, 1997, the disclosures of which are all hereby incorporated by reference.BACKGROUND[0002]The invention relates generally to a method and apparatus for applying energy to shrink a hollow anatomical structure, such as a fallopian tube or a vein, including but not limited to, superficial and perforator veins, hemorrhoids, and esophageal varices. In some particular aspects, the invention relates to a method for...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B18/04A61M29/02A61B17/00A61B17/22A61B18/14
CPCA61B18/1492A61B2017/00084A61B2017/22038A61B2017/22051A61B2018/00214A61B2018/0022A61B2018/00404A61B2018/124A61B2018/1253A61B2018/126A61B2018/1475A61B2019/5278A61B2218/002A61B2090/3782A61B18/14
Inventor GOLDMAN, MITCHEL P.WEISS, ROBERT A.ZIKORUS, ARTHUR W.CHANDLER, JAMES G.
Owner TYCO HEALTHCARE GRP LP
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