Control of liquid flow into or out of a human or animal body
First Claim
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1. Apparatus for controlling the flow of fluid to or from a human or animal body, the apparatus including:
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a flow passage having an inlet and an outlet, respective spaced flow control means disposed between the inlet and the outlet for controlling the flow of liquid through the apparatus and defining between them at least one chamber region, at least one sensing means for sensing one or more properties of the liquid in or adjacent the apparatus in use, and control means for controlling operation of the flow control means in response to at least one of;
(i) a sensed property of the liquid, and (ii) elapse of a predetermined time interval.
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Abstract
Apparatus for controlling the operation of a catheter, the apparatus including an inlet for receiving the output end of a catheter and an outlet for discharging liquid received from the catheter, valve means between the inlet and the outlet for controlling the flow of liquid through the apparatus, sensing means for sensing one or more properties of the liquid in the apparatus, and control means for controlling operation of the valve means in response to a sensed property of the liquid, such as pressure, and/or in response to a predetermined criteria, such as a time interval having elapsed.
126 Citations
54 Claims
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1. Apparatus for controlling the flow of fluid to or from a human or animal body, the apparatus including:
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a flow passage having an inlet and an outlet, respective spaced flow control means disposed between the inlet and the outlet for controlling the flow of liquid through the apparatus and defining between them at least one chamber region, at least one sensing means for sensing one or more properties of the liquid in or adjacent the apparatus in use, and control means for controlling operation of the flow control means in response to at least one of;
(i) a sensed property of the liquid, and (ii) elapse of a predetermined time interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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- 52. A method of controlling the flow of fluid along a catheter, which comprises sensing at least one parameter of fluid in a test section of the flow passage and adjusting the flow therealong in response to said sensed parameter or parameters.
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54-55. -55. (canceled)
Specification