Rapid exchange catheter with detachable hood
First Claim
1. A catheter having a proximal end and a distal end, the catheter comprising:
- a proximal portion including a first lumen extending therein;
a distal portion including a guidewire lumen sized to allow fluid flow therethrough even when a guidewire is disposed therein, the guidewire lumen being in fluid communication with the first lumen; and
a port adapted to allow a guidewire disposed outside the proximal portion to enter the guidewire lumen between the proximal portion and the distal portion, the port adapted to allow a guidewire to pass therethrough, the port also adapted to prevent a fluid from passing therethrough.
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Accused Products
Abstract
A single operator exchange biliary catheter having a common distal lumen. The biliary catheter includes an elongate shaft having a proximal portion defining an ancillary lumen and a distal portion defining a common guidewire and ancillary lumen. The common distal lumen reduces the profile of the distal portion of the shaft. The elongate shaft also includes a proximal guidewire port disposed between the proximal end of the shaft and the distal end of the shaft to facilitate single operator use. A seal may be disposed adjacent the proximal guidewire port to thereby seal the port. Preferably, the shaft includes a single lumen distal portion and a bi-lumen proximal portion. The single lumen distal portion of the shaft may be curved and may include a tapered or spherically shaped distal tip.
204 Citations
20 Claims
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1. A catheter having a proximal end and a distal end, the catheter comprising:
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a proximal portion including a first lumen extending therein; a distal portion including a guidewire lumen sized to allow fluid flow therethrough even when a guidewire is disposed therein, the guidewire lumen being in fluid communication with the first lumen; and a port adapted to allow a guidewire disposed outside the proximal portion to enter the guidewire lumen between the proximal portion and the distal portion, the port adapted to allow a guidewire to pass therethrough, the port also adapted to prevent a fluid from passing therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A catheter having a proximal end and a distal end, the catheter being a single operator exchange catheter adapted to receive a guidewire in a distal portion extending between a proximal guidewire port and the distal end, the proximal guidewire port being nearer the distal end than the proximal end, the catheter comprising:
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directing means for directing a guidewire into the distal portion, the directing means disposed about the catheter; and preventing means for preventing fluid flow through the proximal guidewire port. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A catheter having a proximal end and a distal end, the catheter being a single operator exchange catheter adapted to receive a guidewire in a distal portion extending between a proximal guidewire port and the distal end, the catheter being adapted for use as a biliary catheter by passage through a lumen of an endoscope, the proximal guidewire port being nearer the distal end than the proximal end, the catheter comprising:
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directing means for directing a guidewire into the distal portion, the directing means including a funnel shaped member, the funnel shaped member having a greater diameter at a proximal end and a lesser diameter at a distal end, the funnel shaped member distal end being disposed adjacent the proximal guidewire port, the funnel shaped member proximal end shaped to correspond to the shape of the endoscope lumen; and preventing means for preventing fluid flow through the proximal guidewire port; wherein the directing means includes a funnel shaped member, the funnel.
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Specification