Glaucoma drainage device with pump
First Claim
1. A glaucoma drainage device comprising:
- a main drainage tube with a first end configured to be located in an anterior chamber of an eye and a second end configured to be located in a drainage location;
a bypass drainage tube fluidly coupled to and in parallel with the main drainage tube, the bypass drainage tube having a first end and a second end;
a pump in communication with the bypass drainage tube, the pump comprising a first driver and a first flexible membrane enclosing a first chamber;
a first check valve located upstream of the pump in the bypass drainage tube;
a second check valve located downstream of the pump in the bypass drainage tube;
an active valve located in the main drainage tube upstream of the first end of the bypass drainage tube, the active valve comprising a second driver and a second flexible membrane enclosing a second chamber; and
a third check valve located in the main drainage tube between the first end of the bypass drainage tube and the second end of the bypass drainage tube;
wherein a volume of the first chamber is changed to pump fluid from the anterior chamber to the drainage location; and
further wherein the first, second, and third check valves are arranged to allow fluid flow only from the anterior chamber to the drainage location.
4 Assignments
0 Petitions
Accused Products
Abstract
A glaucoma drainage device may comprise a main drainage tube with a first end configured to be located in an anterior chamber of an eye and a second end configured to be located in a drainage location. A bypass drainage tube is fluidly coupled to and in parallel with the main drainage tube. A pump is in communication with the bypass drainage tube. The pump comprises a first driver and a first flexible membrane enclosing a first chamber. A first check valve is located upstream of the pump, and a second check valve is located downstream of the pump. An active valve is located upstream of the first check valve. The active valve comprises a second driver and a second flexible membrane enclosing a second chamber. A third check valve is located between the active valve and the second end of the main drainage tube. A volume of the first chamber is changed to pump fluid from the anterior chamber to the drainage location.
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Citations
11 Claims
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1. A glaucoma drainage device comprising:
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a main drainage tube with a first end configured to be located in an anterior chamber of an eye and a second end configured to be located in a drainage location; a bypass drainage tube fluidly coupled to and in parallel with the main drainage tube, the bypass drainage tube having a first end and a second end; a pump in communication with the bypass drainage tube, the pump comprising a first driver and a first flexible membrane enclosing a first chamber; a first check valve located upstream of the pump in the bypass drainage tube; a second check valve located downstream of the pump in the bypass drainage tube; an active valve located in the main drainage tube upstream of the first end of the bypass drainage tube, the active valve comprising a second driver and a second flexible membrane enclosing a second chamber; and a third check valve located in the main drainage tube between the first end of the bypass drainage tube and the second end of the bypass drainage tube; wherein a volume of the first chamber is changed to pump fluid from the anterior chamber to the drainage location; and
further wherein the first, second, and third check valves are arranged to allow fluid flow only from the anterior chamber to the drainage location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification