Reduced size programmable drug pump
First Claim
1. An implantable infusate pump comprising:
- an array of flow restrictors disposed in a plurality of fluid flow paths; and
a plurality of controllable valves, wherein valves of said plurality of controllable valves are disposed in different ones of said fluid flow paths.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods provide a programmable or controllable infusate delivery with minimal power consumption using controllable valves and with safe and reliable operation of the delivery system. Embodiments provide programmable control without the need for implantable power sources using multi-stable valves and/or mono-stable valves which are powered externally when activated. Embodiments provide for very low power programmable control, such as by employing micro-electromechanical system valves and a flow restrictor array. An external program controller may be utilized to provide a user interface and which may communicate with the controllable infusate delivery system using wireless links. Internal controller circuitry may provide for flow control changes for different activities or times of day and/or in response to changes in pressure, temperature, etcetera. A safety valve configuration may be implemented which provides a safety flow valve configuration which responds in an opposite manner to particular events than does a corresponding primary flow valve.
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Citations
36 Claims
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1. An implantable infusate pump comprising:
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an array of flow restrictors disposed in a plurality of fluid flow paths; and
a plurality of controllable valves, wherein valves of said plurality of controllable valves are disposed in different ones of said fluid flow paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for delivering infusate, said method comprising:
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providing an array of flow restrictors disposed in a plurality of fluid flow paths of an infusate pump;
providing a plurality of controllable valves disposed in different ones of said fluid flow paths; and
controlling said controllable valves to provide a desired aggregate infusate flow through a predetermined combination of one or more flow restrictor of said array of flow restrictors. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An implantable infusate pump comprising:
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an infusate reservoir;
an infusate delivery fluid path coupled to said infusate reservoir; and
a remotely controllable bolus valve disposed in said infusate delivery fluid path at a point providing sufficient fluid flow to deliver a bolus. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification