Fluid-connection mechanism and methods for patch-pumps
First Claim
1. A method of delivering a drug, the method comprising:
- removing a pin from a patch-pump assembly to automatically cause a penetrator to penetrate a seal of a prefilled drug-reservoir, the patch-pump assembly comprising the penetrator, the prefilled drug-reservoir, a fluid-passageway, a cannula-containing assembly, and a spring-based mechanism;
flowing the drug from the prefilled drug-reservoir to the fluid-passageway;
establishing fluid communication between the fluid-passageway and the cannula-containing assembly using the spring-based mechanism;
flowing the drug from the fluid-passageway to the cannula-containing assembly; and
delivering the drug subcutaneously to a subject using the cannula-containing assembly.
2 Assignments
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Accused Products
Abstract
Embodiments may include a method of delivering a drug. The method may include removing or releasing a structure from a patch-pump assembly. The patch-pump assembly may include a sealed prefilled drug-reservoir, a fluid passageway, a cannula-containing assembly, and a penetrator. The method may also include penetrating the sealed prefilled drug-reservoir containing the drug to establish fluid communication between the sealed prefilled drug-reservoir and a fluid passageway by removing or releasing the structure. The method may further include flowing the drug from the prefilled drug-reservoir to the fluid passageway. In addition, the method may include flowing the drug from the fluid passageway to a cannula-containing assembly. Furthermore, the method may include delivering the drug subcutaneously to a subject using the cannula-containing assembly.
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Citations
8 Claims
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1. A method of delivering a drug, the method comprising:
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removing a pin from a patch-pump assembly to automatically cause a penetrator to penetrate a seal of a prefilled drug-reservoir, the patch-pump assembly comprising the penetrator, the prefilled drug-reservoir, a fluid-passageway, a cannula-containing assembly, and a spring-based mechanism; flowing the drug from the prefilled drug-reservoir to the fluid-passageway; establishing fluid communication between the fluid-passageway and the cannula-containing assembly using the spring-based mechanism; flowing the drug from the fluid-passageway to the cannula-containing assembly; and delivering the drug subcutaneously to a subject using the cannula-containing assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of delivering a drug to a subject, the method comprising using a selectively activatable patch-pump assembly to deliver the drug to the subject, the selectively activatable patch-pump assembly comprising:
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a sealed prefilled drug-reservoir containing the drug; a fluid-passageway in connection therewith, wherein the fluid-passageway is free of the drug; a selectively activatable penetrator which penetrates said sealed prefilled drug-reservoir and facilitates drug access to said fluid-passageway; and a selectively activatable, associated, cannula-containing assembly for delivering a drug subcutaneously to a subject, in fluid connection with said fluid-passageway; a first spring-based mechanism, wherein a selective activation-step initiates penetration of said sealed prefilled drug-reservoir; a structure preventing the inadvertent activation of said selectively activatable patch-pump assembly, the structure configured such that; removing or releasing the structure from said selectively activatable patch-pump assembly is the selective activation-step, and removing or releasing the structure from said selectively activatable patch-pump assembly automatically causes the first spring-based mechanism to propel said selectively activatable penetrator through said fluid-passageway to penetrate said sealed prefilled drug-reservoir, establishing fluid communication between said sealed prefilled drug-reservoir and said fluid-passageway; wherein said sealed prefilled drug-reservoir is stationary relative to a central longitudinal axis defined by the cannula-containing assembly during initiation of penetration and during penetration of the sealed prefilled drug-reservoir by the selectively activatable penetrator.
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Specification