Device for creating openings in pressurized vessels with deformable walls
First Claim
Patent Images
1. A catheter for performing arteriotomies on intracorporal vessels comprising:
- (a) a tubular body having a proximal end and a distal end;
(b) a ring shaped cutting device positioned at the distal end of the tubular body for cutting a hole in a wall of a vessel to be treated;
(c) a bore inside the tubular body and the cutting device; and
(d) a fastener positioned in the bore at the distal end of the bore, the fastener adapted to firmly hold a portion of the wall of the vessel that forms the hole when a vacuum suction is applied through the bore and the hole is cut in the wall of the vessel by the cutting device.
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Accused Products
Abstract
The catheter (1) has a fastener (10) for firmly holding the wall (19) of vessel (18) when it is cut by optical fibers (3). The fastener (10) has an engaging element which can be a pin (20), roughened surface (23), spiral grooves (27), dendritic grooves (31), adhesive surface (34) or pointed pins (38).
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Citations
25 Claims
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1. A catheter for performing arteriotomies on intracorporal vessels comprising:
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(a) a tubular body having a proximal end and a distal end; (b) a ring shaped cutting device positioned at the distal end of the tubular body for cutting a hole in a wall of a vessel to be treated; (c) a bore inside the tubular body and the cutting device; and (d) a fastener positioned in the bore at the distal end of the bore, the fastener adapted to firmly hold a portion of the wall of the vessel that forms the hole when a vacuum suction is applied through the bore and the hole is cut in the wall of the vessel by the cutting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 25)
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22. A method for performing bypass surgery on intracorporal vessels comprising:
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providing a catheter having a tubular body having a proximal end, and a distal end, a ring shaped cutting device positioned at the distal end of tubular body, a bore inside the tubular body and the cutting device and a fastener positioned with the bore at the distal end of the bore; attaching a rigid spacer to an end of a bypass vessel; attaching the end of the bypass vessel to an outer surface of a wall of a vessel which is to be treated; inserting the catheter into the bypass vessel until the cutting device abuts the wall; applying a vacuum suction through the bore to firmly hold a portion of the outer surface of the wall of the vessel against the fastener; cutting a hole in the held portion of the wall; and removing the catheter with the cut portion of the wall held by the fastener. - View Dependent Claims (23, 24)
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Specification