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Abnormal electrical conduction blocking apparatus using photodynamic therapy (PDT)
US8961580B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961580-B2 |
| Application number | US-51676507-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 30, 2007 |
| Priority date | Nov 30, 2006 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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There are provided an apparatus and a method for blocking abnormal conduction in the cardiac muscle using a photodynamic therapy or for treating arrhythmia. There is provided a catheter ablation apparatus for the treatment of arrhythmia using a photodynamic therapy, comprising a catheter leading a photoradiation unit to an abnormal electrical conduction site or a hyperexcitability occurring site in the cardiac muscle of a test subject in which a photosensitizer is present by administering the photosensitizer beforehand and which causes arrhythmia, means for generating a light ray with which the abnormal electrical conduction site or the hyperexcitability occurring site is irradiated, and means for transmitting the light ray to the abnormal electrical conduction site or the hyperexcitability occurring site, wherein the photosensitizer used is a water-soluble chlorine-based photosensitizer and the light ray used is a light ray having an excitation wavelength equal to that of the photosensitizer.
First claim
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The invention claimed is: 1. A method of treating atrial fibrillation using a photodynamic therapy by means of catheter ablation apparatus for the treatment of atrial fibrillation using a photodynamic therapy, comprising a catheter having a structure whose end is freely bent for leading a photoradiation unit to an abnormal electrical conduction site between the left atrium and the pulmonary vein in a test subject, means for generating a light ray with which the abnormal electrical…
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- What does patent US8961580B2 cover?
- There are provided an apparatus and a method for blocking abnormal conduction in the cardiac muscle using a photodynamic therapy or for treating arrhythmia. There is provided a catheter ablation apparatus for the treatment of arrhythmia using a photodynamic therapy, comprising a catheter leading a photoradiation unit to an abnormal electrical conduction site or a hyperexcitability occurring sit…
- Who is the assignee on this patent?
- Arai Tsunenori, Hosokawa Shuntaro, Univ Keio
- What technology area does this patent fall under?
- Primary CPC classification A61B18/24. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).