Implantable pump with adjustable flow rate
First Claim
1. An implantable drug-delivery pump, comprising:
- a pump housing having a reservoir adapted to retain a fluid therein;
a pump inlet port formed in the pump housing for delivering fluid to the reservoir;
a reservoir outlet port formed in the pump housing and adapted to receive fluid from the reservoir;
a driver mechanism effective to drive fluid from the reservoir to the reservoir outlet port; and
a valve adapted to receive fluid from the reservoir outlet port, the valve including a multi-lumen member that has a first end coupled to the reservoir outlet port for receiving fluid flow from the reservoir and a second opposed end coupled to an outlet port for delivering fluid, the multi-lumen member being disposed within a valve housing having a restrictor member extending there across between opposed sidewalls thereof, the restrictor member being adapted to prevent fluid flowing from the reservoir from flowing therethrough and to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing from the reservoir.
1 Assignment
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Accused Products
Abstract
A valve that is adapted to control the flow rate of fluid flow from an implantable pump or other fluid delivery device is provided. In general, the valve includes a multi-lumen member that is adapted to receive fluid-flow therethrough, and a restrictor member that is coupled to the multi-lumen member such that the restrictor member is effective to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing through the multi-lumen member. The valve can be built into an implantable drug pump to control fluid flow exiting the pump, or alternatively the valve can disposed within a catheter or otherwise coupled to an outlet port in an implantable drug pump to control the flow rate of fluid exiting the drug pump.
85 Citations
20 Claims
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1. An implantable drug-delivery pump, comprising:
- a pump housing having a reservoir adapted to retain a fluid therein;
a pump inlet port formed in the pump housing for delivering fluid to the reservoir;
a reservoir outlet port formed in the pump housing and adapted to receive fluid from the reservoir;
a driver mechanism effective to drive fluid from the reservoir to the reservoir outlet port; and
a valve adapted to receive fluid from the reservoir outlet port, the valve including a multi-lumen member that has a first end coupled to the reservoir outlet port for receiving fluid flow from the reservoir and a second opposed end coupled to an outlet port for delivering fluid, the multi-lumen member being disposed within a valve housing having a restrictor member extending there across between opposed sidewalls thereof, the restrictor member being adapted to prevent fluid flowing from the reservoir from flowing therethrough and to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing from the reservoir. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a pump housing having a reservoir adapted to retain a fluid therein;
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14. An implantable drug-delivery pump, comprising:
- a pump housing having a reservoir adapted to retain a fluid therein;
a pump inlet port formed in the pump housing for delivering fluid to the reservoir;
a reservoir outlet port formed in the pump housing and adapted to receive fluid from the reservoir;
a driver mechanism effective to drive fluid from the reservoir to the reservoir outlet port; and
a valve adapted to receive fluid from the reservoir outlet port, the valve including a multi-lumen member disposed within a valve housing and adapted to receive fluid flow in one direction therethrough, the valve housing having a restrictor member extending there across between opposed sidewalls thereof, the restrictor member being adapted to prevent fluid flowing from the reservoir from flowing therethrough and to selectively restrict at least a portion of one or more lumens in the multi-lumen member to thereby adjust the flow rate of fluid flowing from the reservoir. - View Dependent Claims (15, 16, 17, 18, 19, 20)
- a pump housing having a reservoir adapted to retain a fluid therein;
Specification