Catheter exchange device
First Claim
1. A catheter system comprising:
- (a) a guidewire;
(b) a catheter having a lumen adapted to slidably receive the guidewire through the lumen; and
(c) a guidewire anchoring means to restrict movement between the guidewire and the anchoring means, the anchoring means comprising;
(i) a balloon;
(ii) a shaft having a distal end and a proximal end;
(iii) a longitudinal lumen throughout the shaft having the lumen being in fluid communication with the balloon, the balloon being disposed on the distal end of the shaft;
(iv) a tubular split housing with a distal end and a proximal end, the housing having an inside diameter, the housing surrounding the distal end of the shaft, the balloon being adhered to the inside diameter of the housing, the balloon being sized to expand to a larger size than the inside diameter of the split housing, the inside diameter of the split housing being sized to slidably receive a catheter.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention includes an exchange system, a guidewire anchoring means and a method of use for catheters exchangeable over a guidewire (55). The guidewire anchoring means restricts movement between the guidewire (55) and the anchoring means. The anchoring means comprises a shaft (35) with a longitudinal lumen (80) therethrough, the lumen (80) being in fluid communication with a balloon (25 or 30) disposed on the distal end of the shaft (35). A tubular split housing (5 or 10) surrounds the distal end of the shaft (35) and adheres to the balloon (25 or 30), the balloon (25 or 30) being sized to expand to a larger size than the inside diameter of the split housing (5 or 10). The inside diameter of the split housing (5 or 10) is sized to slidably receive a catheter, while the outside diameter of the split housing (5 or 10) is sized to slidably fit within a guide catheter (50 ).
34 Citations
21 Claims
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1. A catheter system comprising:
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(a) a guidewire; (b) a catheter having a lumen adapted to slidably receive the guidewire through the lumen; and (c) a guidewire anchoring means to restrict movement between the guidewire and the anchoring means, the anchoring means comprising; (i) a balloon; (ii) a shaft having a distal end and a proximal end; (iii) a longitudinal lumen throughout the shaft having the lumen being in fluid communication with the balloon, the balloon being disposed on the distal end of the shaft; (iv) a tubular split housing with a distal end and a proximal end, the housing having an inside diameter, the housing surrounding the distal end of the shaft, the balloon being adhered to the inside diameter of the housing, the balloon being sized to expand to a larger size than the inside diameter of the split housing, the inside diameter of the split housing being sized to slidably receive a catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of exchanging catheters over a guidewire comprising the steps of:
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(a) providing a guidewire, a first catheter, a second catheter, and a guidewire anchoring means, the guidewire anchoring means having a shaft, a housing and a balloon, the shaft having a lumen therethrough, the lumen being in fluid communication with the balloon, the housing having a split therethrough, the housing having an inside diameter and the balloon being disposed upon the inside diameter of the housing; (b) advancing the guidewire to the desired location; (c) advancing a first catheter over the proximal end of the guidewire to the desired location; (d) pressing the proximal end of the first catheter through the split in the housing; (e) advancing the guidewire anchoring means over the first catheter past the distal end of the first catheter and over the guidewire; (f) inflating the balloon to a size that inhibits movement of the guidewire within the split housing; (g) withdrawing the first catheter from the body while leaving the guidewire anchoring means in place; (h) advancing the second catheter over the guidewire to the housing; (i) deflating the balloon; (j) withdrawing the guidewire anchoring means over the second catheter.
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12. A guidewire anchoring means comprising:
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(a) a balloon; (b) a shaft having a distal end and a proximal end; (c) the shaft having a longitudinal lumen therethrough, the lumen being in fluid communication with the balloon, the balloon being disposed on the distal end of the shaft; (d) a tubular split housing with a distal end and a proximal end, the housing having an inside diameter, the housing surrounding the distal end of the shaft the balloon being adhered to the inside diameter of the housing, the balloon being sized to expand to a larger size than the inside diameter of the split housing, the inside diameter of the split housing being sized to slidably receive a catheter. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification