Sheathless Guide Catheter Assembly
First Claim
1. A guide catheter assembly comprising:
- a dilator including a proximal end, a distal end, a dilator lumen extending from a distal opening at the distal end to a proximal opening at the proximal end, and a side exit port proximal of the distal opening, wherein the side exit port is in communication with the dilator lumen; and
a guide catheter including a proximal end, a distal end, and a guide lumen extending between the proximal and distal ends of the guide catheter, wherein the dilator and the guide lumen are sized such that the dilator can pass through the guide lumen, and wherein the dilator and the guide catheter are sized such that with the proximal end of the dilator generally aligned along an axis along an axis with the proximal end of the guide catheter, the distal end of the dilator extends distally past the distal end of the guide catheter and the side exit port is disposed distal of the distal end of the guide catheter.
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Accused Products
Abstract
A guide catheter assembly includes a dilator and a guide catheter. The dilator includes a dilator lumen extending from a distal opening at a distal end to a proximal opening at a proximal end, and a side exit port proximal of the distal opening and in communication with the dilator lumen. The guide catheter includes a proximal end, a distal end, and a guide lumen extending therebetween. The dilator and the guide lumen are sized such that the dilator can pass through the guide lumen. The dilator and the guide catheter are sized such that with the proximal end of the dilator generally aligned along an axis with the proximal end of the guide catheter, the distal end of the dilator extends distally past the distal end of the guide catheter and the side exit port is disposed distal of the distal end of the guide catheter.
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Citations
20 Claims
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1. A guide catheter assembly comprising:
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a dilator including a proximal end, a distal end, a dilator lumen extending from a distal opening at the distal end to a proximal opening at the proximal end, and a side exit port proximal of the distal opening, wherein the side exit port is in communication with the dilator lumen; and a guide catheter including a proximal end, a distal end, and a guide lumen extending between the proximal and distal ends of the guide catheter, wherein the dilator and the guide lumen are sized such that the dilator can pass through the guide lumen, and wherein the dilator and the guide catheter are sized such that with the proximal end of the dilator generally aligned along an axis along an axis with the proximal end of the guide catheter, the distal end of the dilator extends distally past the distal end of the guide catheter and the side exit port is disposed distal of the distal end of the guide catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A guide catheter assembly comprising:
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a dilator including a proximal end, a distal end, a dilator lumen extending from a distal opening at the distal end to a side exit port proximal of the distal opening, wherein the dilator includes a tapered distal portion adjacent the distal end; and a guide catheter including a proximal end, a distal end, and a guide lumen extending between the proximal end and the distal end of the guide catheter, wherein the dilator and the guide lumen are sized such that the dilator can pass through the guide lumen, and wherein the dilator and guide catheter are sized such that with the proximal end of the dilator generally aligned along an axis along an axis with the proximal end of the guide catheter, the distal end of the dilator extends distally past the distal end of the guide catheter and the side exit port is disposed distal of the distal end of the guide catheter. - View Dependent Claims (10, 11, 12)
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13. A method for accessing a vessel and delivering a guide catheter to a desired location in the vasculature of a patient, the method comprising the steps of:
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inserting a needle through a wall of the vessel at an access site to create an access opening, wherein the needle includes a needle lumen; inserting a first wire through the needle lumen and into the vessel, wherein the first wire has a first diameter; removing the needle from the vessel over the first wire and leaving a distal end of the first wire in a lumen of the vessel with the first wire extending through the access opening; inserting a proximal end of the first wire into a distal opening of a dilator of a guide catheter assembly and into a dilator lumen of the dilator, wherein the guide catheter assembly includes the dilator and a guide catheter having a guide lumen sized to receive the dilator therein; guiding the proximal end of the first wire out of a side exit port of the dilator, wherein the side exit port is located proximal of the distal opening and distal of a distal end the guide catheter when a proximal end of the dilator and a proximal end of guide catheter are generally aligned along an axis; advancing the guide catheter assembly over the first wire until a distal portion of the dilator enters the vessel; removing the first wire from the vessel and the dilator by pulling the proximal end of the first wire such that the first wire retracts from the vessel, through the distal opening, and out of the side exit port; inserting a second guidewire into a proximal opening at a proximal end of the dilator, through the dilator lumen, and out of the distal opening into the vessel; and advancing the guide catheter assembly over the second guidewire until a distal portion of the guide catheter is disposed in the lumen of the vessel. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification