SUBCUTANEOUS AND INTRADERMAL PATCH INFUSERS
First Claim
1. A disposable infuser device for rapid subcutaneous or intradermal delivery of a drug or other medical compositions to a living being, said infuser device comprising:
- a housing comprising a prefilled syringe having a cannula coupled thereto, said prefilled syringe comprising the drug or other medical composition and including a displaceable stopper for driving the drug or other medical compositions from said syringe and through said cannula and wherein said prefilled syringe comprises a syringe axis that is parallel to the skin of the living being when said infuser device is coupled thereto;
an infuser base to which said housing is coupled, said infuser base configured to releasably secure to the skin of the living being;
a cannula bending mechanism associated with said housing that, when activated, bends said cannula to be substantially perpendicular to said syringe axis while penetrating the skin of the living being;
a cannula insertion mechanism associated with said lever, said housing and said base that when activated, inserts said cannula through the skin into the underlying tissue;
a drug delivery mechanism associated with said housing and said lever that drives said displaceable stopper to deliver the drug or other medical compositions through said cannula once said cannula has penetrated the skin of the living being; and
a lever that is manually displaceable by a user of said disposable infuser device, said lever activating said cannula bending mechanism, said cannula insertion mechanism, and said stopper driving mechanism via a single activation of said lever.
1 Assignment
0 Petitions
Accused Products
Abstract
The device infuses a compound subcutaneously or intradermally over an extended period of time. The delivery is from a conventional prefilled syringe with a staked cannula with the device adhered to the injection site and the syringe positioned substantially parallel to the injection site. The cannula is formed by a mechanism integral to the device to provide the cannula distal section substantially perpendicular to the syringe axis. The compound delivery is based on springs or other mechanisms. The approach offers a low cost mechanical system for the infusion of high volume, viscous compounds. The activation of the patch infuser required a few simple steps by the user. A single lever is used to trigger all device functions.
-
Citations
29 Claims
-
1. A disposable infuser device for rapid subcutaneous or intradermal delivery of a drug or other medical compositions to a living being, said infuser device comprising:
-
a housing comprising a prefilled syringe having a cannula coupled thereto, said prefilled syringe comprising the drug or other medical composition and including a displaceable stopper for driving the drug or other medical compositions from said syringe and through said cannula and wherein said prefilled syringe comprises a syringe axis that is parallel to the skin of the living being when said infuser device is coupled thereto; an infuser base to which said housing is coupled, said infuser base configured to releasably secure to the skin of the living being; a cannula bending mechanism associated with said housing that, when activated, bends said cannula to be substantially perpendicular to said syringe axis while penetrating the skin of the living being; a cannula insertion mechanism associated with said lever, said housing and said base that when activated, inserts said cannula through the skin into the underlying tissue; a drug delivery mechanism associated with said housing and said lever that drives said displaceable stopper to deliver the drug or other medical compositions through said cannula once said cannula has penetrated the skin of the living being; and a lever that is manually displaceable by a user of said disposable infuser device, said lever activating said cannula bending mechanism, said cannula insertion mechanism, and said stopper driving mechanism via a single activation of said lever. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of subcutaneously or intradermally infusing a drug or other medical compounds into the skin of a living being, said method comprising:
-
securing a syringe, prefilled with the drug or other medical compounds, within a housing of a device that includes a base which can be releasably secured to the skin of the living being and wherein the syringe comprises a cannula and wherein the syringe and cannula are oriented parallel to the skin; manipulating a lever associated with said housing that bends the cannula perpendicular to the skin, causes the cannula to penetrate the skin therethrough and triggers the infusion of the drug or other medical compounds from the prefilled syringe, through the cannula and the skin of the living being by continued motion of said lever. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
Specification