Implantable infusion device with multiple controllable fluid outlets
First Claim
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1. An infusion device configured for implantation in a patient'"'"'s body, the infusion device comprising:
- a housing;
a reservoir mounted in the housing and configured to contain at least one fluid medication;
a first fluid transfer device mounted in the housing actuatable to transfer a first fluid flow from a first fluid inlet coupled to the reservoir to a first fluid outlet;
a second fluid transfer device mounted in the housing actuatable to transfer a second fluid flow from a second fluid inlet coupled to the reservoir to a second fluid outlet;
a common electrically powered actuator, including a rod formed from magnetic material that is driven in a first direction in a first actuation mode and is driven in a second direction that is different than the first direction in a second actuation mode, positioned relative to the first and second fluid transfer devices such that the rod formed from magnetic material actuates the first fluid transfer device when in the first actuation mode, actuates the second fluid transfer device when in the second actuation mode, and does not actuate the first and second fluid transfer devices when in a neutral mode; and
a controller mounted in the housing that controls the common actuator.
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Abstract
An implantable infusion system includes at least two controllable fluid transfer devices that may be used to transfer different fluid flows to the same or different body sites.
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Citations
31 Claims
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1. An infusion device configured for implantation in a patient'"'"'s body, the infusion device comprising:
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a housing; a reservoir mounted in the housing and configured to contain at least one fluid medication; a first fluid transfer device mounted in the housing actuatable to transfer a first fluid flow from a first fluid inlet coupled to the reservoir to a first fluid outlet; a second fluid transfer device mounted in the housing actuatable to transfer a second fluid flow from a second fluid inlet coupled to the reservoir to a second fluid outlet; a common electrically powered actuator, including a rod formed from magnetic material that is driven in a first direction in a first actuation mode and is driven in a second direction that is different than the first direction in a second actuation mode, positioned relative to the first and second fluid transfer devices such that the rod formed from magnetic material actuates the first fluid transfer device when in the first actuation mode, actuates the second fluid transfer device when in the second actuation mode, and does not actuate the first and second fluid transfer devices when in a neutral mode; and a controller mounted in the housing that controls the common actuator. - View Dependent Claims (2, 3, 4, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 25, 26)
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5. An infusion device configured for implantation in a patient'"'"'s body, the infusion device comprising:
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a housing; a reservoir mounted in the housing and configured to contain at least one fluid medication; a first fluid transfer device in the housing including a first fluid chamber and a first piston mounted for reciprocal linear movement between an intake position and a discharge position and actuatable to transfer a first fluid flow from a first fluid inlet coupled to the reservoir to a first fluid outlet; a second fluid transfer device in the housing including a second fluid chamber and a second piston mounted for reciprocal linear movement between an intake position and a discharge position and actuatable to transfer a second fluid flow from a second fluid inlet coupled to the reservoir to a second fluid outlet; a common actuator including a single movable actuation structure that moves in a first direction and strikes the first piston with sufficient force to move the first piston to its discharge position when in a first actuation mode, moves in a second direction that is different than the first direction and strikes the second piston with sufficient force to move the second piston to its discharge position when in a second actuation mode, and does not strike the first and second pistons when in a neutral mode; and
a controller mounted in the housing that controls the common actuator. - View Dependent Claims (6, 7, 23, 24, 27, 28, 29, 30, 31)
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Specification