Methods and apparatus for treatment of patent foramen ovale

A technology of elliptical holes and closing devices, which is applied in parts of surgical instruments, medical science, surgery, etc.

Active Publication Date: 2008-08-27
TERUMO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these basic techniques can be applied to close the PFO, none of the techniques demonstrate a method or device suitable for positioning the PFO tissue for welding or delivering energy to the site to be welded

Method used

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  • Methods and apparatus for treatment of patent foramen ovale
  • Methods and apparatus for treatment of patent foramen ovale
  • Methods and apparatus for treatment of patent foramen ovale

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Embodiment Construction

[0051] The methods and devices of the present invention are generally used to treat tissue adjacent to a patent foramen ovale (PFO) causing the hole to close. The methods and devices generally include a catheter device that is advanced through the vasculature of a patient to position the distal end of the catheter near the PFO for treatment. A treatment device disposed at or near the distal end of the catheter may then be used to treat at least a portion of the heart wall tissue surrounding the PFO, causing the PFO to close. In many embodiments, the treatment device is used to deliver energy to a closure device and to the tissue surrounding the PFO. The energy causes a connection between the tissue of the PFO and the closing device, which in turn may include a response within the tissue, causing the PFO to close. In one embodiment, a therapeutic device includes one or more conductive elements. Such conductive elements may retract into (and extend out of) the body of the cath...

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Abstract

Methods and apparatus for treatment of patent foramen ovale (PFO) generally involve use of a catheter having at least one closure device at its distal end. In some embodiments, the catheter also includes one or more energy transmission members for delivering energy to the closure device(s) and to the tissue adjacent the PFO to induce closure of the PFO. Closure devices may comprise, for example, a bioresorbable matrix or a non-resorbable matrix. In some embodiments, the closure device contains particles dispersed within the closure device to increase conductance and / or to reduce resistance and / or impedance. An exemplary method involves advancing a catheter to position its distal end into the tunnel of the PFO and fixing the closure device within the tunnel of the patent foramen PFO.

Description

[0001] related application [0002] This application claims priority to the following U.S. Provisional Patent Applications: Nos. 60 / 458,854 filed March 27, 2003 (Attorney Docket No. 022128-000100US); Nos. 60 / 478,035 (Attorney Docket No. 022128-000110US); Nos. 60 / 490082 filed July 24, 2003 (Attorney Docket No. 022128-000120US); incorporated herein by reference in their entireties. This application is related to the following U.S. patent applications: Nos. 10 / 665974 filed September 16, 2003 (Attorney Docket No. 022128-000300US); Nos. 10 / 679245 filed October 2, 2003 (Attorney No. 022128-000200US); Nos. 10 / 787532 filed February 25, 2004 (Attorney Document No. 022128-000130US); and Nos. 10 / ______ (Attorney Document No. 022128-000130US) filed concurrently with this application No. 022128-000400US), the entire contents of which are incorporated herein by reference. technical field [0003] The present invention generally relates to medical devices and methods. In particular, the...

Claims

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Application Information

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IPC IPC(8): A61B18/18
Inventor M·E·迪姆H·S·吉福德三世W·麦勒奇K·霍尼
Owner TERUMO KK
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