Laser device for transmyocardial revascularization procedures in

Details Laser device for transmyocardial revascularization procedures in Laser device for transmyocardial revascularization procedures in

1996-04-05

1998-07-21

Smith, Ruth S.

Surgery

Instruments

Light application

606 11, 606 15, A61B 1736

Patent

active

057828237

ABSTRACT:
An apparatus for performing a laser myocardial revascularization of a human heart comprises a hand-held device with an elongated flexible lasing assembly including an axially movable fiber bundle which can be placed into the chest cavity of a patient. At the distal head end of the device laser energy from the distal end of the fiber bundle is initially reduced to form a relatively small opening in the epicardium of the heart. The fiber bundle is moved through the opening so that lasing with full laser power takes place beneath the epicardium to form a larger channel through the myocardium that extends into the left ventricular cavity. After the channel has been formed, the optical fiber bundle is retracted from the channel and back through the small epicardium opening so as to minimize operative bleeding and allow sealing of the epicardium after the apparatus is removed.

REFERENCES:
patent: 4658817 (1987-04-01), Hardy
patent: 4846171 (1989-07-01), Kauphusman et al.
patent: 5554152 (1996-09-01), Aita et al.

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