Active drainage systems with dual-input pressure-driven values
First Claim
1. A pressure-driven valve, comprising:
- a housing comprising a fluid inlet and a fluid outlet;
a fluid flow channel extending between the fluid inlet and the fluid outlet; and
a deflectable portion disposed within the housing, the deflectable portion defining a portion of the fluid flow channel and being configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet, the deflectable portion comprising a first side subject to fluid flow pressure in the fluid flow channel, and having a second side facing away from the first side, the second side subject to an outlet pressure representative of pressure at the fluid outlet, the deflectable portion being disposed and arranged to deflect as a result of pressure differentials between a reference pressure, the fluid flow channel pressure, and the outlet pressure.
4 Assignments
0 Petitions
Accused Products
Abstract
A pressure-driven valve is disclosed. The valve includes a housing, a fluid flow channel, and a deflectable portion. The housing comprises a fluid inlet and a fluid outlet. The fluid flow channel extends between the fluid inlet and the fluid outlet. The deflectable portion is disposed within the housing, and defines a portion of the fluid flow channel. The deflectable portion is configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet. The deflectable portion is disposed and arranged to deflect as a result of pressure differentials between a reference pressure, a fluid flow channel pressure, and an outlet pressure representative of fluid pressure at the fluid outlet.
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Citations
20 Claims
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1. A pressure-driven valve, comprising:
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a housing comprising a fluid inlet and a fluid outlet; a fluid flow channel extending between the fluid inlet and the fluid outlet; and a deflectable portion disposed within the housing, the deflectable portion defining a portion of the fluid flow channel and being configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet, the deflectable portion comprising a first side subject to fluid flow pressure in the fluid flow channel, and having a second side facing away from the first side, the second side subject to an outlet pressure representative of pressure at the fluid outlet, the deflectable portion being disposed and arranged to deflect as a result of pressure differentials between a reference pressure, the fluid flow channel pressure, and the outlet pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A pressure-driven valve for implantation in a patient, comprising:
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a housing comprising a fluid inlet and a fluid outlet; and a flexible flow control membrane portion disposed within the housing, the membrane portion having a first side subject to fluid flow pressure in a fluid flow channel, and having a second side facing away from the first side, the second side subject to an outlet pressure representative of pressure at the fluid outlet, the membrane portion being deflectable to increase and decrease flow through the fluid flow channel based on pressure differentials between the fluid flow pressure and the outlet pressure. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A pressure-driven valve, comprising:
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a housing comprising a fluid inlet and a fluid outlet; a fluid flow channel extending between the fluid inlet and the fluid outlet; and a deflectable portion disposed within the housing, the deflectable portion defining a portion of the fluid flow channel and being configured to deflect to increase and decrease a size of the fluid flow channel to regulate fluid flow from the fluid inlet to the fluid outlet, the deflectable portion comprising a first flow control membrane to provide a pressure differential between a channel pressure representative of fluid pressure in the fluid flow channel and a reference pressure, the deflectable portion further comprising a second flow control membrane to provide a second pressure differential between the reference pressure and an outlet pressure representative of fluid pressure at the fluid outlet. - View Dependent Claims (19, 20)
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Specification