Anchoring system and method for indwelling urethral catheter
First Claim
Patent Images
1. The indwelling urethral catheter for controlling urine flow through a urethra comprising:
- a catheter drainage shaft, defining an enclosed drainage canal through which urine can flow, for extending through and being anchored in, the urethra so that an upstream end is positioned in a patient'"'"'s bladder for allowing urine flow through the drainage canal from the bladder;
an anchoring system mounted on said drainage shaft for anchoring said drainage shaft in said urethra for preventing downstream and upstream migration of said drainage shaft, said anchoring system including;
a bladder anchoring member mounted at the upstream end of said catheter drainage shaft for engaging said bladder and thereby contacting a bladder wall for deterring downstream migration of said catheter drainage shaft in said urethra; and
,an urethral anchoring member mounted on said catheter drainage shaft at a position spaced downstream of said bladder anchoring member for distending in said urethra for preventing upstream migration of said catheter drainage shaft in said urethra;
wherein, an anchor-interval portion of said catheter drainage shaft, positioned between said bladder anchoring member and said urethral anchoring member, has an elastic resilience for allowing said bladder and urethral anchoring members to separate a substantial distance and for thereafter biasing the bladder and urethral anchoring members toward one another for impinging against opposite sides of prostatic tissue located between the bladder and urethral anchoring members.
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Accused Products
Abstract
An anchoring system for a urethral catheter (14, 36), and a method of its use, involve a resilient anchor-interval portion (40) of a catheter drainage shaft (42, 42'"'"'), positioned between a bladder balloon (26) and a urethral anchoring cuff balloon (44). The anchor-interval portion has a sinusoidal configuration lengthwise thereof which provide a proper linear elastic resilience for allowing the bladder balloon and the urethral anchoring cuff balloon to be separated a substantial distance for impinging against what remains of a prostate gland (20, 28, 32).
54 Citations
12 Claims
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1. The indwelling urethral catheter for controlling urine flow through a urethra comprising:
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a catheter drainage shaft, defining an enclosed drainage canal through which urine can flow, for extending through and being anchored in, the urethra so that an upstream end is positioned in a patient'"'"'s bladder for allowing urine flow through the drainage canal from the bladder; an anchoring system mounted on said drainage shaft for anchoring said drainage shaft in said urethra for preventing downstream and upstream migration of said drainage shaft, said anchoring system including; a bladder anchoring member mounted at the upstream end of said catheter drainage shaft for engaging said bladder and thereby contacting a bladder wall for deterring downstream migration of said catheter drainage shaft in said urethra; and
,an urethral anchoring member mounted on said catheter drainage shaft at a position spaced downstream of said bladder anchoring member for distending in said urethra for preventing upstream migration of said catheter drainage shaft in said urethra; wherein, an anchor-interval portion of said catheter drainage shaft, positioned between said bladder anchoring member and said urethral anchoring member, has an elastic resilience for allowing said bladder and urethral anchoring members to separate a substantial distance and for thereafter biasing the bladder and urethral anchoring members toward one another for impinging against opposite sides of prostatic tissue located between the bladder and urethral anchoring members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of anchoring a urethral catheter comprising the steps:
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providing a catheter drainage shaft having a bladder balloon at an upstream end portion thereof and a urethral anchoring cuff balloon mounted on said catheter drainage shaft downstream of said bladder balloon, wherein an anchoring interval portion of said catheter drainage shaft, between said bladder balloon and said urethral anchoring cuff balloon, is substantially resilient for allowing said bladder balloon and said urethral anchoring cuff balloon to be linearly distanced from one another and for thereafter applying a bias to said bladder balloon and said urethral anchoring cuff balloon for retracting said bladder balloon and said urethral anchoring cuff balloon linearly toward one another; mounting said indwelling urethral catheter in a urethra by inflating said bladder balloon in the patient'"'"'s bladder and the urethral anchoring cuff balloon in the patient'"'"'s bulbous urethra and thereby causing said bladder balloon and said urethral anchoring cuff balloon to separate from one another while stretching said anchoring interval portion so that said anchoring interval portion biases said bladder balloon and said urethral anchoring cuff balloon against opposite sides of tissue. - View Dependent Claims (11, 12)
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Specification