Methods for transluminally performing surgery
First Claim
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1. A method of performing surgery on an interior wall of a hollow-body organ or vessel comprising steps of:
- providing a catheter having a distal region, a guide disposed for translation along the catheter, the guide including an end effector disposed in an end region movable from a transit position aligned with a longitudinal axis of the catheter to a working position at an angle relative to the longitudinal axis, means for stabilizing the distal region within a hollow-body organ;
inserting the catheter within a cavity of a hollow-body organ;
moving the end region to the working position;
deploying the means for stabilizing the distal region within the cavity;
actuating the end effector to perform surgery by removing tissue from the interior wall of the hollow-body organ or vessel; and
aspirating tissue removed from the interior wall of the hollow-body organ or vessel.
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Abstract
Apparatus and methods for performing surgery within a hollow-body organ are provided. A catheter is provided having a longitudinal axis and an end region carrying an end effector. The end region is movable to a series of positions along the longitudinal axis with a selectable orientation relative to the longitudinal axis. The catheter includes elements for stabilizing the end region of the apparatus within a hollow-body organ, and for counteracting reaction forces developed during actuation of the end effector. The end effector provides for tissue cutting and aspiration of severed tissue from a treatment site.
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Citations
18 Claims
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1. A method of performing surgery on an interior wall of a hollow-body organ or vessel comprising steps of:
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providing a catheter having a distal region, a guide disposed for translation along the catheter, the guide including an end effector disposed in an end region movable from a transit position aligned with a longitudinal axis of the catheter to a working position at an angle relative to the longitudinal axis, means for stabilizing the distal region within a hollow-body organ; inserting the catheter within a cavity of a hollow-body organ; moving the end region to the working position; deploying the means for stabilizing the distal region within the cavity; actuating the end effector to perform surgery by removing tissue from the interior wall of the hollow-body organ or vessel; and aspirating tissue removed from the interior wall of the hollow-body organ or vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of performing transmyocardial revascularization comprising steps of:
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providing a catheter having a distal region, a guide disposed for translation along the catheter, the guide including an end effector disposed in an end region movable from a transit position aligned with a longitudinal axis of the catheter to a working position at an angle relative to the longitudinal axis, means for stabilizing the distal region within a left ventricle; inserting the catheter within a left ventricular cavity; moving the end region to the working position; deploying the means for stabilizing the distal region within the left ventricular cavity; actuating the end effector to bore a channel extending from the endocardium into the myocardium in the wall of the left ventricle; and aspirating tissue removed from the wall of the left ventricle. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification