Apparatus for urinary bladder treatment

Claim 1

A device for urinary bladder treatment for maintaining a constant flow of irrigating fluid through the bladder comprising, in combination: A. a hydraulic line for permitting flow of fluid from a fluid source to the bladder, a catheter adapted for insertion into said bladder, said catheter having an inlet in fluid communication with said hydraulic line and an outlet for permitting fluid into said bladder, and discharge outlet means on said catheter having a valve for permitting the controlled removal of fluid from said bladder; B. a bladder fluid flow detector connected to said hydraulic line which generates an output signal as a function of the rate of flow of fluid passing through the said detector; C. a rate meter, whose input is connected to the output of the flow detector which rate meter produces an electrical signal whose magnitude is proportional to the rate of flow of fluid passing through the fluid flow detector; D. a servomechanism apparAtus, whose input is connected to the output of the rate meter, and which servomechanism produces an output in accordance with the electrical signal at its input; E. a flow-regulating means connected in the hydraulic line supplying irrigating fluid to the fluid flow detector, which flow-regulating means is controlled by the output of the servomechanism apparatus; F. a volume and mode control unit comprising: G. an electrically actuated changeover switch which receives pulses at its input from the fluid flow detector; H. a counter for counting pulses whose input is connected to the output of the changeover switch when the bladder treatment device is operating in its irrigation mode; I. a second counter for counting pulses, whose input is connected to the output of the changeover switch when the bladder treatment device is operating in its inflation mode; J. a bistable circuit, having one of its inputs connected to the output of the irrigation counter, and the other of its inputs connected to the inflation counter, and the output of which bistable circuit is connected to said valve for controlling the flow of urinary fluid out of the bladder being treated such that in the inflation mode of operation the valve is closed, and in the irrigation mode of operation of the valve is opened.

Claim 2

A device for urinary bladder treatment for maintaining a constant flow of irrigating fluid through the bladder comprising, in combination: A. a hydraulic line for permitting flow of fluid from a fluid source to the bladder, a catheter adapted for insertion into said bladder, said catheter having an inlet in fluid communication with said hydraulic line and an outlet for permitting fluid into said bladder, and discharge outlet means on said catheter having a valve for permitting the controlled removal of fluid from said bladder; B. a bladder fluid flow detector connected to said hydraulic line which generates an output signal as a function of the rate of flow of fluid passing through the said detector; C. a rate meter, whose input is connected to the output of the flow detector which rate meter produces an electrical signal whose magnitude is proportional to the rate of flow of fluid passing through the fluid flow detector; D. a servomechanism apparAtus, whose input is connected to the output of the rate meter, and which servomechanism produces an output in accordance with the electrical signal at its input; E. a flow-regulating means connected in the hydraulic line supplying irrigating fluid to the fluid flow detector, which flow-regulating means is controlled by the output of the servomechanism apparatus; F. a volume and mode control unit comprising: G. an electrically actuated changeover switch which receives pulses at its input from the fluid flow detector; H. a counter for counting pulses whose input is connected to the output of the changeover switch when the bladder treatment device is operating in its irrigation mode; I. a second counter for counting pulses, whose input is connected to the output of the changeover switch when the bladder treatment device is operating in its inflation mode; J. a bistable circuit, having one of its inputs connected to the output of the irrigation counter, and the other of its inputs connected to the inflation counter, and the output of which bistable circuit is connected to said valve for controlling the flow of urinary fluid out of the bladder being treated such that in the inflation mode of operation the valve is closed, and in the irrigation mode of operation of the valve is opened.