Energy based devices and methods for treatment of patent foramen ovale

US20050080406A1Inactive Publication Date: 2005-04-14TERUMO KK
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  • Energy based devices and methods for treatment of patent foramen ovale
  • Energy based devices and methods for treatment of patent foramen ovale
  • Energy based devices and methods for treatment of patent foramen ovale

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Embodiment Construction

[0045] Devices and methods of the present invention generally provide for patent foramen ovale (PFO) treatment through application or removal of energy. Methods involve advancing a catheter device to a position in the heart for treating the PFO and applying energy to (or removing energy from) tissues adjacent a PFO to substantially close the PFO acutely. Terms such as “substantially,”“acutely,” and “tissues adjacent the PFO” are defined above in the Brief Summary of the Invention. Devices of the invention generally include a catheter device having a proximal end and a distal end and at least one energy transmission member adjacent the distal end for applying energy to or removing energy from tissues adjacent the PFO.

[0046] As mentioned above in the background section, FIG. 1 is a diagram of the fetal circulation. The foramen ovale is shown, with an arrow demonstrating that blood passes from the right atrium to the left atrium in the fetus. After birth, if the foramen ovale fails to...

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Abstract

Methods and apparatus for treatment of patent foramen ovale (PFO) provide for applying energy to tissues adjacent the PFO with a catheter device to substantially close the PFO acutely. Apparatus generally includes a catheter device having at least one energy transmission member at or near its distal end configured to apply energy to PFO tissues to acutely, substantially close the PFO. Applied energy may be monoploar or bipolar radiofrequency energy or any other suitable energy, such as laser, microwave, ultrasound, resistive heating or the like. Some embodiments of a catheter device further include one or more tissue apposition members near the distal end for helping bring PFO tissues together, such as a PFO covering member, a vacuum applying member and / or the like. PFO closure via energy-based approaches of the invention may help prevent stroke, treat migraine headache, and possibly treat or prevent other medical conditions.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS [0001] This application is a division of U.S. patent application Ser. No. 10 / 679,245 (Attorney Docket No. 022128-000200US), which claims priority to U.S. Provisional Patent Application Nos.: 60 / 458,854 (Attorney Docket No. 022128-000100US (formerly 020979-002100US)), filed Mar. 27, 2003; 60 / 478,035 (Attorney Docket No. 022128-00011US (formerly 020979-0021 1US)), filed Jun. 11, 2003; and 60 / 490,082 (Attorney Docket No. 022128-000120US (formerly 020979-002120US)), filed Jul. 24, 2003, the full disclosures of which are incorporated herein by reference. This application is related to U.S. patent application Ser. No. 10 / 665,974 (Attorney Docket No. 022128-000300US (formerly 020979-002600US)), filed Sep. 18, 2003, the full disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION [0002] The invention generally relates to medical devices and methods. More specifically, the invention relates to energy based devices and metho...

Claims

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Application Information

Patent Timeline
14 Apr 2005
Publication
US20050080406A1
IPC
A61B17/00; A61B17/30; A61B17/34; A61B18/14; A61B19/00
CPC
A61B17/0057; C08L2201/12; A61B18/1445; A61B18/1492; A61B2017/00575; A61B2017/00867; A61B2017/306; A61B2017/3445
Inventors
MALECKI, WILLIAM; FRANCIS, DAN