| 摘要 |
A hand-held transmyocardial revascularization gun for ablatively creating channels in tissue, such as heart muscle. The gun is configured with a barrel having a chamber therein for enclosing a probing mechanism and a coring mechanism. The barrel has an opening to permit the surgeon to utilize a finger to slidably move the probing mechanism into the tissue to verify the position is suitable for channel formation. A trigger attached to the gun is used to extend the coring mechanism into the tissue to core out a section thereof for the channel. The opening allows the surgeon to finely control the movement of the probe mechanism to provide tactile feed back, while advancing the probe through the tissue, thus avoiding damage to the internal tissue structures. Stents with or without angiogenic agents thereon can be inserted into the channels to promote vascular or heart cell growth.
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