Reinforced balloon dilatation catheter with slitted exchange sleeve and method
First Claim
1. A balloon dilatation catheter adapted to be utilized with a guidewire comprising:
- a flexible elongated catheter shaft which has a proximal end and a distal end, a relatively stiff proximal section and a relatively flexible distal section;
a first inner lumen which extends within the proximal and distal sections thereof;
an inflatable balloon at an intermediate location of the distal section of the catheter shaft proximal to the distal end thereof having an interior in fluid communication with the first inner lumen;
a distal guidewire opening in the distal end of the catheter shaft;
a proximal guidewire opening in the distal section of the catheter shaft which is at a location proximal to the inflatable balloon and spaced a substantial distance from the proximal end of the catheter shaft; and
a second inner lumen which extends at least from the proximal guidewire opening to the distal guidewire opening and which is configured to receive a guidewire therein.
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Accused Products
Abstract
Balloon dilatation catheter adapted to be utilized in connection with a guiding catheter and a guide wire. The catheter comprises a flexible elongate tubular member having proximal and distal extremities and having a lumen extending therethrough. An inflatable balloon is mounted on the distal extremity of the tubular member. The interior of the inflatable balloon is in communication with the lumen. A sleeve extends through the balloon and extends rearwardly from the balloon and alongside the lumen. The sleeve has a guidewire lumen extending therethrough. The guidewire lumen is adapted to receive a guide wire extending therethrough and extending rearwardly of the flexible elongate element into a region adjacent the proximal extremity of the proximal elongate element. The sleeve has a slit extending longitudinally of the same from the proximal extremity of the sleeve to a region adjacent the balloon permitting the guide wire to be removed therethrough.
693 Citations
18 Claims
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1. A balloon dilatation catheter adapted to be utilized with a guidewire comprising:
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a flexible elongated catheter shaft which has a proximal end and a distal end, a relatively stiff proximal section and a relatively flexible distal section; a first inner lumen which extends within the proximal and distal sections thereof; an inflatable balloon at an intermediate location of the distal section of the catheter shaft proximal to the distal end thereof having an interior in fluid communication with the first inner lumen; a distal guidewire opening in the distal end of the catheter shaft; a proximal guidewire opening in the distal section of the catheter shaft which is at a location proximal to the inflatable balloon and spaced a substantial distance from the proximal end of the catheter shaft; and a second inner lumen which extends at least from the proximal guidewire opening to the distal guidewire opening and which is configured to receive a guidewire therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A rapid exchange type balloon dilatation catheter adapted to be utilized with a guidewire comprising:
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an elongated catheter shaft which has a proximal end, a distal end, a long relatively stiff proximal section and a short relatively flexible distal section; a first inner lumen which extends within the proximal and distal sections of the catheter shaft; an inflatable balloon at an intermediate location of the distal section of the tubular shaft proximal to the distal end thereof having an interior in fluid communication with the first inner lumen; a distal guidewire port in the distal end of the catheter shaft; a proximal guidewire port in the catheter shaft which is at a location proximal to the inflatable balloon and distal to the relatively stiff proximal section; and a second inner lumen which is configured to receive a guidewire therein and which extends from the proximal guidewire port to the distal guidewire port and is in fluid communication therewith.
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14. A rapid exchange type intravascular catheter assembly adapted to be utilized with a guidewire, comprising:
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an elongated catheter shaft which has a proximal end, a distal end, a long relatively stiff proximal shaft section and a short relatively flexible distal shaft section; means to perform an intravascular procedure at an intermediate location on the distal shaft section proximal to the distal end of the catheter shaft; a distal guidewire port in the distal end of the catheter shaft; a proximal guidewire port in the catheter shaft which is at a location a short distance proximal to the distal end of the catheter shaft and distal to the relatively stiff proximal section; and an inner lumen which is configured to receive a guidewire therein and which extends from the proximal guidewire port to the distal guidewire port and which is in fluid communication therewith. - View Dependent Claims (15, 16, 17, 18)
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Specification