Surgery – Instruments – Light application
Patent
1998-06-05
2000-05-23
Jaworski, Francis J.
Surgery
Instruments
Light application
606 7, 607 89, A61B 1736
Patent
active
060661313
ABSTRACT:
Improved methods and devices related to laser-assisted transmyocardial revascularization (TMR), and more particularly, to improved methods and devices for creating branched TMR channels through myocardium in which a single opening is made in an epicardial surface with a plurality of channel branches, having predetermined geometries extending into and through myocardium, depending therefrom. A method of creating branched TMR channels comprises piercing an epicardial surface mechanically or with laser energy, directing laser energy through the opening in a first predetermined angular orientation with respect to the epicardial surface to create a first channel and delivering laser energy in a second predetermined angular orientation to create a second branch. A plurality of branches can thus be created in a single channel structure. A guide block device allows an opening to be made in an epicardial surface mechanically or with laser energy and provides a structure for directing laser energy into myocardium in a plurality of channels depending from the opening. Rotating guide devices and finger held devices with rotating head means include a hand held device with an elongated wand-like handle portion, a rotating head portion and a hollow guide needle means. Preferred embodiments further comprise a laser delivery means advancing mechanism and guide needle rotating means.
REFERENCES:
patent: 4029084 (1977-06-01), Soldner
patent: 4658817 (1987-04-01), Hardy
patent: 4669465 (1987-06-01), Moore et al.
patent: 4846171 (1989-07-01), Kauphusman et al.
patent: 5125926 (1992-06-01), Rudko et al.
patent: 5380316 (1995-01-01), Aita et al.
patent: 5389096 (1995-02-01), Aita et al.
patent: 5591159 (1997-01-01), Taheri
patent: 5662124 (1997-09-01), Wilk
patent: 5713894 (1998-02-01), Murphy-Chutorian et al.
patent: 5725523 (1998-03-01), Mueller
patent: 5738680 (1998-04-01), Mueller et al.
patent: 5769843 (1998-06-01), Abela et al.
Deckelbaum, "Cardiovascular Apps. of Laser Tech.", Lasers in Surgery and Medicine, 15:315-341 (1994).
Frazier et al., "Myocard. Revasc. with Las.", Cullen Cardio. Res. Labs., Tx. Heart Inst., Supp. II C vol. 92, No. 9, II-58-65 (Nov. 1, 1995).
Harman Stuart D.
Lathrop, Jr. Robert L.
Mueller Richard L.
Richardson Bruce J.
Eclipse Surgical Technologies Inc.
Janofsky Ilene Lapidus
Jaworski Francis J.
Shahani Ray K.
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