Infusion pump system, an infusion pump unit and an infusion pump
First Claim
1. An infusion pump system, comprising:
- at least one infusion pump unit, comprising;
a housing of a size allowing said infusion pump unit to be carried by a user as a portable infusion pump unit, said housing defining an exterior surface, a fluid inlet provided accessibly at said exterior surface for establishing fluid communication from an external infusion bag to said fluid inlet, a fluid outlet provided accessibly at said exterior surface for establishing fluid communication to an infusion site, a controllable pumping system included within said housing and having an inlet and an outlet, said inlet being connected to said fluid inlet and said outlet being connected to said fluid outlet for allowing transfer of fluid from said fluid inlet to said fluid outlet through activating said controllable pumping system, a first check valve provided at said inlet of said controllable pumping system, a second check valve provided at said outlet of said controllable pumping system, an electronic control means received within said housing for controlling the operation of said controllable pumping system, said electronic control means including at least two preset pumping programs for allowing said controllable pumping system to be controlled in at least two alternative infusion pumping operations, and a power supply unit housed within said housing for supplying power to said controllable pumping system and to said electronic control means and connectible through exterior terminals provided at said exterior surface of said housing to external electric energy supply means, a stationary receptor system including;
a receptor means for receiving and fixating said at least one infusion pump unit therein so as to maintain said at least one infusion pump unit in a stationary mode and exposing said fluid inlet and fluid outlet of said at least one infusion pump unit for allowing access thereto, and a mains supply unit for receiving electric energy from the mains supply and having terminals connectible to said exterior terminals for supplying said electric energy to said power supply unit of said at least one infusion pump unit, said mains supply unit constituting said external electric supply means, said pumping system including a pump and a shape memory alloy actuator for operating said pump.
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0 Petitions
Accused Products
Abstract
An infusion pump unit includes a housing sized to allow the pump unit to be carried as a portable unit. The housing has an inlet for establishing fluid communication from an external infusion bag to the inlet and an outlet for establishing fluid communication to an infusion site. The housing contains a controllable pumping system for pumping fluid from the inlet to the outlet and a shape memory alloy actuator for operating the pumping unit. The actuator has a pivotable body having a yoke for linearly displacing an actuator mechanism when the body pivots under the influence of two shape memory alloy wires and a tension spring, such that alternative heating and cooling of the shape memory wires, reinforced by the action of the spring, pivots the body to and fro.
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Citations
42 Claims
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1. An infusion pump system, comprising:
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at least one infusion pump unit, comprising;
a housing of a size allowing said infusion pump unit to be carried by a user as a portable infusion pump unit, said housing defining an exterior surface, a fluid inlet provided accessibly at said exterior surface for establishing fluid communication from an external infusion bag to said fluid inlet, a fluid outlet provided accessibly at said exterior surface for establishing fluid communication to an infusion site, a controllable pumping system included within said housing and having an inlet and an outlet, said inlet being connected to said fluid inlet and said outlet being connected to said fluid outlet for allowing transfer of fluid from said fluid inlet to said fluid outlet through activating said controllable pumping system, a first check valve provided at said inlet of said controllable pumping system, a second check valve provided at said outlet of said controllable pumping system, an electronic control means received within said housing for controlling the operation of said controllable pumping system, said electronic control means including at least two preset pumping programs for allowing said controllable pumping system to be controlled in at least two alternative infusion pumping operations, and a power supply unit housed within said housing for supplying power to said controllable pumping system and to said electronic control means and connectible through exterior terminals provided at said exterior surface of said housing to external electric energy supply means, a stationary receptor system including;
a receptor means for receiving and fixating said at least one infusion pump unit therein so as to maintain said at least one infusion pump unit in a stationary mode and exposing said fluid inlet and fluid outlet of said at least one infusion pump unit for allowing access thereto, and a mains supply unit for receiving electric energy from the mains supply and having terminals connectible to said exterior terminals for supplying said electric energy to said power supply unit of said at least one infusion pump unit, said mains supply unit constituting said external electric supply means, said pumping system including a pump and a shape memory alloy actuator for operating said pump. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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2. (canceled)
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3. (canceled)
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37. A fluid pump, comprising:
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a flexible tube connected to a fluid inlet at one end and connected to a fluid exit at the opposite end, at least three flattening bodies for flattening said tube against an abutment element and arranged along the length of said tube, said bodies being arranged so as to be displaceable between a first position, wherein said body is pressed against said abutment element with said tube flattened between said body and said abutment element, and a second position spaced so far from said abutment element that said tube at least partly has regained an open configuration, at least one first wire for each flattening body and made of a shape memory alloy, said first wire being at one end connected to said body such that shortening of the length of said first wire exerts a force on said body for moving said body from said first to said second position, and a biasing means, selected from the group consisting of at least one of a tension spring, a compression spring, a flat spring and a piston and cylinder mechanism, for each of said flattening bodies and connected to said flattening body such that a biasing force is exerted on said flattening body in a direction from said second position to said first position.
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38. An infusion pump for infusing a fluid or a paste in a patient, preferably a portable infusion pump and preferably for use in infusing insulin or a pain killer fluid in a patient, said infusion pump comprising:
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a housing, a container containing said fluid or paste and removably arranged in said housing and having an outlet aperture and a piston element slidably arranged inside said syringe container such that said piston is displaceable towards said outlet aperture, a spindle connected to said piston element and arranged such that rotation of said spindle in a first rotational direction displaces said piston towards said outlet aperture a shape memory alloy actuator incorporated in a shape memory alloy motor comprising;
said shape memory alloy actuator having;
a body arranged so as to be displaceable between a first and a second position, at least one first wire made of a shape memory alloy such as nitinol, said first wire being at one end connected to said body such that shortening of the length of said first wire exerts a first displacement force on said body for moving said body from said second to said first position, a biasing means selected from the group consisting of at least one of a tension spring, a compression spring, a flat spring and a piston and cylinder mechanism arranged and adapted for exerting a second displacement force on said body for moving said body from said first to said second position, and a gear having a first and second rotation direction, said body having a portion adapted to fit between two adjacent teeth of said gear, and said body and said gear being adapted and arranged such that in said first position said portion is located between a pair of teeth of said gear and in said second position said portion is located between the adjacent pair of teeth of said gear reckoned in said second rotation direction of said gear such that said second displacement force will cause said body to rotate said gear in said first direction, and said gear being connected to said spindle, preferably via at least one further gear such that rotation of said gear in said first direction causes said spindle to rotate in said first rotational direction. - View Dependent Claims (39)
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40. An infusion pump for infusing a fluid or a paste in a patient, preferably a portable infusion pump and preferably for use in infusing insulin or a pain killer fluid in a patient, said infusion pump comprising:
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a housing, a container containing said fluid or paste and removably arranged in said housing and having an outlet aperture and a piston element slidably arranged inside said container such that said piston is displaceable towards said outlet aperture, said shape memory alloy actuator, having a body arranged displaceable between a first and a second position, at least one first wire made of a shape memory alloy such as nitinol, said first wire being at one end connected to said body such that shortening of the length of said first wire exerts a first displacement force on said body for moving said body from said second to said first position, a biasing means selected from the group consisting of at least one of a tension spring, a compression spring, a flat spring and a piston and cylinder mechanism arranged and adapted for exerting a second displacement force on said body for moving said body from said first to said second position, and a rack having a first and second displacement direction and abutting said piston such that displacement of said rack in said second displacement direction displaces said piston towards said outlet aperture, said body having a portion adapted to fit between two adjacent teeth of said rack, and said body and said rack being adapted and arranged such that in said first position said portion is located between a pair of teeth of said rack and in said second position said portion is located between the adjacent pair of teeth of said gear reckoned in said second displacement direction of said rack such that said second displacement force will cause said body to displace said rack in said first direction.
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41. An infusion pump system, comprising:
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at least one infusion pump unit, comprising;
a housing of a size allowing said infusion pump unit to be carried by a user as a portable infusion pump unit, said housing defining an exterior surface, a fluid inlet provided accessibly at said exterior surface for establishing fluid communication from an external infusion bag to said fluid inlet, a fluid outlet provided accessibly at said exterior surface for establishing fluid communication to an infusion site, a controllable pumping system included within said housing and having an inlet and an outlet, said inlet being connected to said fluid inlet and said outlet being connected to said fluid outlet for allowing transfer of fluid from said fluid inlet to said fluid outlet through activating said controllable pumping system, an electronic control means received within said housing for controlling the operation of said controllable pumping system, said electronic control means including at least two preset pumping programs for allowing said controllable pumping system to be controlled in at least two alternative infusion pumping operations, and a power supply unit housed within said housing for supplying power to said controllable pumping system and to said electronic control means and connectible through exterior terminals provided at said exterior surface of said housing to external electric energy supply means, a stationary receptor system including;
at least one receptor means for receiving and fixating one of said infusion pump unit therein so as to maintain said infusion pump unit in a stationary mode and exposing said fluid inlet and fluid outlet of said infusion pump unit for allowing access thereto and having first terminals connectible to said exterior terminals for supplying said electric energy to said power supply unit of said at least one infusion pump unit and further having second terminals connectible to third terminals of a second receptor means for supplying power to said second receptor means, a mains supply unit for receiving electric energy from the mains supply and having second terminals connectible to said third terminals for supplying said electric energy to said receptor means and thereby to said power supply unit of said at least one infusion pump unit, said mains supply unit constituting said external electric supply means, and fastening means for fastening said receptor means adjacent one another and for fastening said mains supply unit adjacent one of said receptor means. - View Dependent Claims (42)
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Specification