Internal urinary catheter
First Claim
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1. An internal urinary catheter, comprising:
- a cannula having an external diameter, a urine passage, a urine inlet and a urine outlet; and
valve means positioned along said urine passage between said inlet and said outlet and comprising a compressible tube, and means for releasably compressing said tube, said valve means having an external diameter substantially the same as said external diameter of said cannula, said means for releasably compressing being biased toward a compressing position wherein said tube is compressed and flow through said tube is substantially blocked, and said means for releasably compressing being positionable to a released position at least partially releasing compression of said tube wherein flow through said tube is allowed.
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Abstract
A urinary catheter includes a cannula having a urine passage, a urine inlet and a urine outlet and a valve positioned in the urine passage between the inlet and the outlet and including a compressible tube, and a member for releasably compressing the tube, the member for releasably compressing being biased toward a compressing position wherein the tube is compressed and flow through the tube is substantially blocked, and the member for releasably compressing being positionable to a released position at least partially releasing compression of the tube wherein flow through the tube is allowed.
65 Citations
24 Claims
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1. An internal urinary catheter, comprising:
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a cannula having an external diameter, a urine passage, a urine inlet and a urine outlet; and valve means positioned along said urine passage between said inlet and said outlet and comprising a compressible tube, and means for releasably compressing said tube, said valve means having an external diameter substantially the same as said external diameter of said cannula, said means for releasably compressing being biased toward a compressing position wherein said tube is compressed and flow through said tube is substantially blocked, and said means for releasably compressing being positionable to a released position at least partially releasing compression of said tube wherein flow through said tube is allowed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A urinary catheter, comprising:
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a cannula having a urine passage, a urine inlet and a urine outlet; and valve means positioned along said urine passage between said inlet and said outlet and comprising a housing positioned along said cannula, a sleeve positioned within said housing and having a cutout portion, a compressible tube positioned within said sleeve, and means contacting said compressible tube through said cutout portion for releasably compressing said tube, said means for releasably compressing being biased toward a compressing position wherein said tube is compressed and flow through said tube is substantially blocked, and said means for releasably compressing being positionable to a released position at least partially releasing compression of said tube wherein flow through said tube is allowed.
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24. A urinary catheter, comprising:
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a cannula having a urine passage, a urine inlet and a urine outlet; valve means positioned along said urine passage between said inlet and said outlet and comprising a compressible tube, and means for releasably compressing said tube, said means for releasably compressing being biased toward a compressing position wherein said tube is compressed and flow through said tube is substantially blocked, and said means for releasably compressing being positionable to a released position at least partially releasing compression of said tube wherein flow through said tube is allowed; retention means for retaining said inlet end of said cannula with respect to a bladder of a patient; said retention means comprising inflatable retention means, a fluid channel disposed along said cannula and communicating with said inflatable retention means, and fluid introduction means associated with said fluid channel for introducing fluid into said fluid channel whereby said inflatable retention means can be inflated for securing said cannula in position; and insertion means for inserting said cannula in the urethra of a patient and for inflating said inflatable retention means when said outlet end of said cannula is within the urethra.
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Specification