Slit valve medical catheter
First Claim
Patent Images
1. A medical catheter comprising a flexible tube made of medical grade material, said tube having a proximal end, a distal end and a cylindrical wall extending between said ends;
- a length of resilient tubing mounted to said tube and extending along a relatively short distal end segment thereof;
means defining at least one normally closed lengthwise slit in said tubing intermediate the ends thereof;
means defining an aperture in said tube wall directly opposite and surrounding each said slit, each said aperture being wider than its corresponding slit so that tubing wall portions on opposite sides of the slit overhang the opposite edges of the associated aperture, and closure means for closing the distal end of said tube.
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Accused Products
Abstract
A slit valve medical catheter includes a flexible tube the distal end of which is closed. A length of resilient tubing is mounted coaxially to the distal end segment of the tube so that the tubing extends along the inside or outside surface of the tube. The tubing is slitted lengthwise and an aperture is formed in the tube wall directly opposite each slit with the aperture being wider than the slit so that portions of the tubing wall on opposite sides of each slit overhang the sides of the corresponding aperture.
150 Citations
13 Claims
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1. A medical catheter comprising a flexible tube made of medical grade material, said tube having a proximal end, a distal end and a cylindrical wall extending between said ends;
- a length of resilient tubing mounted to said tube and extending along a relatively short distal end segment thereof;
means defining at least one normally closed lengthwise slit in said tubing intermediate the ends thereof;
means defining an aperture in said tube wall directly opposite and surrounding each said slit, each said aperture being wider than its corresponding slit so that tubing wall portions on opposite sides of the slit overhang the opposite edges of the associated aperture, and closure means for closing the distal end of said tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a length of resilient tubing mounted to said tube and extending along a relatively short distal end segment thereof;
Specification