INTERFACING A PREFILLED SYRINGE WITH AN INFUSION PUMP TO FILL THE INFUSION PUMP
First Claim
1. An infusion pump for interfacing with a prefilled syringe to fill the infusion pump with a therapeutic liquid, the infusion pump comprising:
- a pump housing comprising a base including a syringe coupling region, the syringe coupling region including a fill port and at least one recessed engaging portion, the recessed engaging portion being recessed into the pump housing and configured to removably engage a dispensing end of a prefilled syringe or a syringe cap at a dispensing end of a prefilled syringe;
a septum covering the fill port and positioned in the syringe coupling region such that the septum is pierced by a needle extending into the dispensing end as the syringe cap engages the recessed engaging portion; and
a reservoir located within the housing and fluidly coupled to the syringe coupling region such that the needle is fluidly coupled with the reservoir when the needle passes through the fill port and the septum.
2 Assignments
0 Petitions
Accused Products
Abstract
A prefilled syringe may be interfaced with and used to fill an infusion pump with therapeutic liquid. The dispensing end of the prefilled syringe may be coupled (either directly or indirectly using a syringe cap) to a syringe coupling region of the infusion pump, for example, using a threaded engagement or snap fit engagement. As the dispensing end of the prefilled syringe is coupled to the syringe coupling region of the pump housing, a needle passes through the pump housing and/or a needle passage region of the dispensing end such that the prefilled syringe is fluidly coupled to a reservoir in the pump. In various embodiments, the needle may be located in the syringe coupling region or in a syringe cap coupled to the dispensing end of the prefilled syringe.
56 Citations
24 Claims
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1. An infusion pump for interfacing with a prefilled syringe to fill the infusion pump with a therapeutic liquid, the infusion pump comprising:
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a pump housing comprising a base including a syringe coupling region, the syringe coupling region including a fill port and at least one recessed engaging portion, the recessed engaging portion being recessed into the pump housing and configured to removably engage a dispensing end of a prefilled syringe or a syringe cap at a dispensing end of a prefilled syringe; a septum covering the fill port and positioned in the syringe coupling region such that the septum is pierced by a needle extending into the dispensing end as the syringe cap engages the recessed engaging portion; and a reservoir located within the housing and fluidly coupled to the syringe coupling region such that the needle is fluidly coupled with the reservoir when the needle passes through the fill port and the septum. - View Dependent Claims (2, 3, 4)
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5. An infusion pump for interfacing with a prefilled syringe to fill the infusion pump with a therapeutic liquid, the infusion pump comprising:
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a pump housing comprising a base including a syringe coupling region, the syringe coupling region including a fill port and a recessed engaging portion recessed into the pump housing and configured to engage a dispensing end of a prefilled syringe; a needle located in the syringe coupling region and passing through the fill port, the needle being recessed beneath an outer surface of the base and positioned within the recessed engaging portion such that the needle passes through the dispensing end of the prefilled syringe as the dispensing end of the prefilled syringe engages the recessed engaging portion; and a reservoir located within the housing, the reservoir being fluidly coupled to the needle. - View Dependent Claims (6, 7, 8, 9)
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10. An infusion pump for interfacing with a prefilled syringe to fill the infusion pump with a therapeutic liquid, the infusion pump comprising:
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a pump housing comprising a base including a syringe coupling region, the syringe coupling region including a fill port and a recessed portion recessed into the pump housing; a needle carrier located in the recessed portion and configured to move axially within the recessed portion, the needle carrier including a body portion and a needle extending through the body portion, the needle carrier being configured to move axially from a first position to a second position in response to movement of an actuating member in the syringe coupling region, wherein the needle is recessed beneath an outer surface of the pump housing in the first position and the needle extends outside of the pump housing to pass through the dispensing end of the syringe in the second position; and a reservoir within the housing, the reservoir being fluidly coupled to the needle. - View Dependent Claims (11, 12, 13, 14)
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15. A syringe cap for coupling a prefilled syringe to an infusion pump, the syringe cap comprising:
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a body portion including first and second sides; a syringe coupling portion extending from the body portion on the first side and configured to engage a dispensing end of the prefilled syringe; at least one base engaging member extending from the body portion on the second side and configured to removably engage at least one recessed engaging portion in a base of an infusion pump; and a needle extending through the body portion with a first needle portion of the needle extending from the first side of the body portion and a second needle portion of the needle extending from the second side of the body portion, the first needle portion being configured to pass through the dispensing end of the syringe when the syringe coupling portion is coupled to the syringe, and the second needle portion being configured to pass through the base of the infusion pump when the base engaging member is engaged with the base of the infusion pump. - View Dependent Claims (16, 17)
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18. A method of filling an infusion pump with therapeutic liquid using a prefilled syringe, the method comprising:
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obtaining a prefilled syringe, the prefilled syringe comprising a prefilled vial containing a predetermined quantity of therapeutic liquid, the prefilled vial having a dispensing end; obtaining an infusion pump comprising a pump housing and a reservoir within the housing, the housing comprising a base including a syringe coupling region, the syringe coupling region including a fill port and a recessed portion recessed into the pump housing; coupling the dispensing end of the prefilled vial to the syringe coupling region of the infusion pump, wherein a needle passes through the base of the pump housing and/or the dispensing end of the prefilled vial when the dispensing end is coupled such that the prefilled vial is fluidly coupled to the reservoir via the fill port; dispensing a predetermined amount of therapeutic liquid from the prefilled vial into the reservoir; and removing the dispensing end of the prefilled vial from the syringe coupling region. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification