Hypodermic manometer
First Claim
1. A hypodermic manometer comprising a fluid filled sleeve and piston assembly means for movement through said sleeve to force fluid outwardly therefrom for delivery to a hollow occlusion cuff to be implanted in engagement with the urethra of an incontinent patient for applying occlusive pressure thereto, said piston assembly means comprising a fluid channel and a fluid filled flexible bellows, said bellows and said channel communicating with one another,said piston assembly means further comprising pressure indicating means being movable with said piston assembly means through said sleeve to indicate the occlusive pressure being applied to the patient'"'"'s urethra by said cuff, said indicating means being responsive to the height of the bellows fluid within said fluid channel when said flexible bellows is compressed during the movement of said piston assembly means through said sleeve.
1 Assignment
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Accused Products
Abstract
A combination hypodermic syringe and manometer for simultaneously imparting fluid to an external device, such as a hollow occlusion cuff surrounding a patient'"'"'s urethra, while at the same time providing an accurate indication of both the internal pressure within the manometer as well as the external occlusive pressure being applied to the patient'"'"'s urethra by the occlusion cuff. The hypodermic manometer includes a piston assembly which is adapted for reciprocal movement through a fluid filled sleeve, whereby to force fluid from the sleeve into the occlusion cuff via a hypodermic syringe. Calibrated indicia marked on the manometer provides an indication of the internal pressure therewithin as well as the external occlusive pressure being applied to the patient'"'"'s urethra.
61 Citations
13 Claims
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1. A hypodermic manometer comprising a fluid filled sleeve and piston assembly means for movement through said sleeve to force fluid outwardly therefrom for delivery to a hollow occlusion cuff to be implanted in engagement with the urethra of an incontinent patient for applying occlusive pressure thereto, said piston assembly means comprising a fluid channel and a fluid filled flexible bellows, said bellows and said channel communicating with one another,
said piston assembly means further comprising pressure indicating means being movable with said piston assembly means through said sleeve to indicate the occlusive pressure being applied to the patient'"'"'s urethra by said cuff, said indicating means being responsive to the height of the bellows fluid within said fluid channel when said flexible bellows is compressed during the movement of said piston assembly means through said sleeve.
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2. A hypodermic manometer for delivering fluid to a utilization device, said manometer including a hollow outer sleeve containing a supply of the fluid to be delivered to the utilization device and piston assembly means located at the interior of said outer sleeve for movement therethrough to force fluid outwardly from said sleeve, said piston assembly means comprising:
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an inner core, an outer collar surrounding said inner core, resilient pressure responsive means filled with a fluid and located at one end of said piston assembly means for movement with said piston assembly means through said outer sleeve, the movement of said piston assembly means through said sleeve causing a compression of said pressure responsive means and a reduction in the volume of the fluid supply within said sleeve, fluid channel means extending longitudinally through said inner core and communicating with said pressure responsive means to receive the fluid thereof when said piston assembly means is moved through said outer sleeve and said pressure responsive means is compressed, and pressure indicating means for indicating the fluid pressure at which the fluid from said outer sleeve is delivered to the utilization device, said indicated fluid pressure being dependent upon the height of the fluid received in said fluid channel. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A hypodermic manometer comprising a sleeve filled with fluid to be delivered to a utilization device and a piston assembly for movement through said sleeve to force fluid outwardly therefrom, said piston assembly comprising:
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resilient pressure responsive means filled with fluid and movable with said piston assembly through said fluid filled sleeve; fluid channel means movable with said piston assembly and communicating with said pressure responsive means to receive the fluid thereof when said piston assembly is moved through said sleeve; and pressure indicating means movable with said piston assembly through said sleeve to indicate the pressure at which fluid is applied to said utilization device, the indicated pressure being dependent upon the location of the fluid in said fluid channel means when said piston assembly is moved through said sleeve; the movement of said piston assembly through said sleeve simultaneously expulsing fluid from said sleeve for delivery to said utilization device and compressing said resilient pressure responsive means to force fluid from said responsive means into said fluid channel means to thereby provide an indication of the pressure at which the fluid from said sleeve is delivered to the utilization device.
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Specification