SYSTEMS AND METHODS OF CONTROLLING FLOW OF BODILY FLUIDS
First Claim
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1. A control system to regulate fluid flow in a patient, comprising:
- a fluid chamber having an inlet port to receive a bodily fluid and an outlet port to discharge the received bodily fluid;
a pressure element to sense a first pressure of the bodily fluid in the fluid chamber and a second pressure opposing the first pressure; and
a valve member to regulate the amount of fluid discharged from the outlet port based on a comparison of the first pressure to the second pressure.
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Abstract
Systems and methods to regulate flow of bodily fluids, such as cerebrospinal fluid (CSF), including a fluid chamber, an inlet port to receive the bodily fluid into the fluid chamber, an outlet port to remove the bodily fluid from the chamber, and a pressure element to regulate the amount of fluid flowing from the inlet port to the outlet port based on a pressure of the bodily fluid against an absolute pressure reference.
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Citations
20 Claims
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1. A control system to regulate fluid flow in a patient, comprising:
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a fluid chamber having an inlet port to receive a bodily fluid and an outlet port to discharge the received bodily fluid; a pressure element to sense a first pressure of the bodily fluid in the fluid chamber and a second pressure opposing the first pressure; and a valve member to regulate the amount of fluid discharged from the outlet port based on a comparison of the first pressure to the second pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A shunt control system to regulate flow of bodily fluid in a patient, comprising:
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a first catheter to receive the bodily fluid from a predetermined region of the patient; a second catheter to direct the bodily fluid to a fluid compatible region of the patient away from the predetermined region; a connection path to communicate the bodily fluid from the first catheter to the second catheter; a valve assembly interposed between the first and second catheter to regulate a flow rate and/or pressure of the bodily fluid communicated by the connection path, the valve assembly comprising; a fluid chamber having an inlet port to receive the bodily fluid from the first catheter, and an outlet port to discharge the received bodily fluid to the connection path; a pressure element to sense a first pressure of the bodily fluid in the fluid chamber and a second pressure opposing the first pressure; and a master control unit coupled to the connection path; and a valve member to regulate the amount of fluid discharged from the outlet port, under the control of the master control unit, based on a comparison of the first pressure to the second pressure. - View Dependent Claims (16, 17)
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18. A method of regulating fluid flow in a patient, comprising:
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providing a fluid chamber having an inlet port to receive a bodily fluid and an outlet port to discharge the received bodily fluid; sensing a first pressure of the bodily fluid in the fluid chamber; sensing a second pressure of the pressure element opposing the first pressure; and opening and closing the outlet port based on a comparison of the first pressure to the second pressure. - View Dependent Claims (19)
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20. A shunt control system to regulate flow of cerebrospinal fluid (CSF) in a patient, comprising:
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a fluid chamber having an inlet port to receive the CSF and an outlet port to remove the received CSF from the fluid chamber; a pressure element to sense a first pressure of the bodily fluid in the fluid chamber and a second pressure opposing the first pressure; and a valve member connected between the inlet port and outlet port to open and close the outlet port based on a comparison between the first and second pressure.
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Specification