发明名称 |
Contiguous, branched transmyocardial revascularization (TMR) channel, method and device |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0815798(A2) |
申请公布日期 |
1998.01.07 |
申请号 |
EP19970304847 |
申请日期 |
1997.07.03 |
申请人 |
ECLIPSE SURGICAL TECHNOLOGIES, INC. |
发明人 |
MUELLER, RICHARD L.;HARMAN, STUART D.;LATHROP, ROBERT L., JR.;RICHARDSON, BRUCE J. |
分类号 |
A61B18/22;A61B17/00;A61B17/22;A61B17/34;(IPC1-7):A61B17/36 |
主分类号 |
A61B18/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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