Pfo closing device

A technology of closing device and foramen ovale, which is applied in medical science, heating surgical instruments, surgical forceps, etc., can solve the problems of size limitation of medical instruments, and achieve reliable puncture operation or connection operation and accurate operation process
CN101389282AActive Publication Date: 2009-03-18TERUMO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TERUMO KK
Publication Date
2009-03-18

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Abstract

The present invention provides a PFO closing device for bringing septum primum and septum secundum into contact and joint with each other. The device includes clamping means and energy supplying means. The clamping means includes a needle part for puncturing the septum primum, and a clamping member for cooperating with the needle part in clamping therebetween the tissues having the septum primum and the septum secundum. The energy supplying means supplies energy for joining the tissues clamped by the needle part and the clamping member. The clamping means is mounted in a catheter so as to be protrudable from and retractable into the catheter.
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Description

technical field

[0001] The present invention relates to a PFO closure device for closing a patent foramen ovale (PFO) occurring in the heart. Background technique

[0002] Currently, a patent foramen ovale (hereinafter referred to as PFO) is considered to be a cardiac factor causing stroke and migraine. PFO is a condition in which the foramen ovale (second septal foramen) used to pass blood between the left and right sides of the heart during the fetal 30% of adults suffer from this disorder.

[0003] PFO is produced in the septum secundum (hereinafter referred to as SS) of the heart. In the heart, the blood pressure in the left atrium of the heart is normally higher than the blood pressure in the right atrium of the heart, which closes the septum primary (hereinafter referred to as SP) of the foramen ovale. However, when the blood pressure in the right atrium of the heart exceeds the blood pressure in the left atrium of the heart in emergency situations (for example, dur...

Claims

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