Leak point wetness sensor for urological investigation
First Claim
1. A leakpoint wetness sensor for urological investigations, comprising:
- an instrument body having a passage therethrough to pass a catheter intended for insertion into the bladder through the urethra;
a temperature sensitive reference sensor mounted to the body, exposed to and responsive to ambient temperature;
a receptacle in said body so disposed and arranged as to receive liquid which leaks from the urethra past the catheter;
a temperature sensitive detector sensor mounted to said body where it will be contacted by said leaked liquid, said detector sensor being responsive to the temperature of said liquid;
circuitry responsive to outputs from said sensors to provide a response reflective of a difference between the temperatures when said detector sensor is wetted by said leaked liquid; and
signal means responsive to said last-named response to indicate the presence of leaked liquid in the receptacle.
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Accused Products
Abstract
A leakpoint wetness sensor for urological investigations including an instrument having a passage therethrough to pass a catheter intended for insertion into the bladder through the urethra. A temperature sensitive reference sensor mounted to the body and exposed to and responsive to ambient temperature. A receptacle in the body so disposed and arranged to receive liquid which leaks from the urethra past the catheter. A temperature sensitive detector sensor mounted to the body where it will be contacted by the leaked liquid and detector sensor being responsive to the temperature of the liquid. A circuit device is responsive to outputs from the sensors to provide a response reflective of a difference between the temperatures when the detector sensor is wetted by leaked liquid.
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Citations
10 Claims
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1. A leakpoint wetness sensor for urological investigations, comprising:
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an instrument body having a passage therethrough to pass a catheter intended for insertion into the bladder through the urethra; a temperature sensitive reference sensor mounted to the body, exposed to and responsive to ambient temperature; a receptacle in said body so disposed and arranged as to receive liquid which leaks from the urethra past the catheter; a temperature sensitive detector sensor mounted to said body where it will be contacted by said leaked liquid, said detector sensor being responsive to the temperature of said liquid; circuitry responsive to outputs from said sensors to provide a response reflective of a difference between the temperatures when said detector sensor is wetted by said leaked liquid; and signal means responsive to said last-named response to indicate the presence of leaked liquid in the receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification