
US Patent No: 5,713,894
Number of patents in Portfolio can not be more than 2000
Combined mechanical/optical system for transmyocardial revascularization
Stats
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Feb 3, 1998
Issued date -
Feb 27, 1996
filing date -
08/607,782
serial no -
Expired
status
Importance
Abstract
The method for combined mechanical/laser myocardial revascularization of a human heart includes: inserting a mechanical piercing device and an elongated flexible lasing apparatus into the chest cavity of a patient; mechanically piercing, micro-tearing or spreading the epicardium of the heart; and then lasing from beneath the epicardium through the myocardium. The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the optical fiber apparatus is placed internal to the exterior wall of the heart through an opening which has been created by mechanically piercing, micro-tearing or spreading the epicardium, so that the myocardium and not the epicardium is irradiated with laser energy to allow passage of said optical fiber distal end or said laser energy into the left ventricular cavity without causing a laser irradiation of the epicardium which might be a cause of operative bleeding and for better allowing the sealing of the epicardium after the apparatus is removed.
First Claim
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,503,559 Fiber-optic endodontic apparatus and method | 26 | 1993 | |
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| 4,846,171 Laser catheter adjustable control apparatus | 131 | 1988 | |