Intracranial pressure monitoring system
First Claim
1. A system for monitoring intracranial pressure and draining intracranial fluid comprising:
- a drainage collection means;
first valve means having an input port and first and second output ports, said first output port being connected to said drainage collection means;
tubing for connecting said input port of said first valve means to a patient, said tubing having a length sufficient to reduce the risk of infection;
second valve means having an input port connected to said second output port of said first valve means, and an output port;
a pressure transducer; and
a dome member having a first opening connected to said output port of said second valve means, a second opening connected to said pressure transducer, and a third opening through which the system can be balanced;
the system defining a fluid communication path between the patient and said pressure transducer wherein said pressure transducer and said dome member are in a downstream position along said path relative to said drainage collection means.
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Accused Products
Abstract
A first valve has a first input port and first and second output ports with the first output port adapted for connection to a drainage collection bag. A tube connects the input port of the first valve to a patient. A second valve has an input port connected to the second output port of the first valve. A dome member has a first opening for connection with an output port of the second valve, a second opening for receiving a pressure transducer, and a third opening for permitting balancing of the system. Through this configuration, the drainage collection bag is located before the pressure sensor, but at a maximum distance from the patient to reduce the risk of infection. An automatic relief valve may replace the second valve to provide for automatic venting of dangerously high levels of intracranial fluids.
79 Citations
9 Claims
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1. A system for monitoring intracranial pressure and draining intracranial fluid comprising:
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a drainage collection means; first valve means having an input port and first and second output ports, said first output port being connected to said drainage collection means; tubing for connecting said input port of said first valve means to a patient, said tubing having a length sufficient to reduce the risk of infection; second valve means having an input port connected to said second output port of said first valve means, and an output port; a pressure transducer; and a dome member having a first opening connected to said output port of said second valve means, a second opening connected to said pressure transducer, and a third opening through which the system can be balanced; the system defining a fluid communication path between the patient and said pressure transducer wherein said pressure transducer and said dome member are in a downstream position along said path relative to said drainage collection means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification