Collapsible reservoir for use with a delivery device
First Claim
1. An ambulatory portable dispensing device for delivering a therapeutic fluid to a patients body, the dispensing device comprising:
- at least one housing accommodating a pump and at least a portion of a reservoir for retaining a therapeutic fluid, the reservoir being collapsible as the therapeutic fluid is removed from the reservoir, anda fluid channel operationally coupled to the pump to allow the therapeutic fluid to be removed from the reservoir without direct force of the pump on the reservoir;
wherein the reservoir comprises a pliable shell comprising at least;
an inner low temperature resistant polymer layer;
a middle thermoplastic elastomer (TPE) layer coupled to the inner layer; and
an outer high temperature resistant polymer layer coupled the middle layer.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed is a therapeutic fluid reservoir to be used with an ambulatory portable infusion device. The reservoir includes a pliable shell defining a varying inner volume that varies based on the volume of therapeutic fluid held inside the reservoir, the varying inner volume having a predetermined maximum volume for containing a corresponding volume of therapeutic fluid and an outlet port for communicating fluid from the reservoir to a patient, the varying inner volume decreasing upon therapeutic fluid being communicated through the outlet port. Upon the reservoir reaching the predetermined maximum volume when being filled with therapeutic fluid, any therapeutic fluid in excess of the predetermined maximum volume driven into the reservoir causes a substantially corresponding amount of therapeutic fluid to exit out of the reservoir via the outlet port and/or at least one other port provided in the pliable shell.
26 Citations
28 Claims
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1. An ambulatory portable dispensing device for delivering a therapeutic fluid to a patients body, the dispensing device comprising:
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at least one housing accommodating a pump and at least a portion of a reservoir for retaining a therapeutic fluid, the reservoir being collapsible as the therapeutic fluid is removed from the reservoir, and a fluid channel operationally coupled to the pump to allow the therapeutic fluid to be removed from the reservoir without direct force of the pump on the reservoir; wherein the reservoir comprises a pliable shell comprising at least; an inner low temperature resistant polymer layer; a middle thermoplastic elastomer (TPE) layer coupled to the inner layer; and an outer high temperature resistant polymer layer coupled the middle layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An ambulatory portable dispensing device for delivering a therapeutic fluid to a patient'"'"'s body, the dispensing device comprising:
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at least one housing accommodating a pump and at least a portion of a reservoir for retaining a therapeutic fluid for delivery to a patient'"'"'s body, the reservoir being configured to collapse as the therapeutic fluid is removed from the reservoir, wherein; the reservoir comprises a pliable multi-layered shell defining a varying inner volume that varies based on the volume of the therapeutic fluid retained inside the reservoir, the multi-layered shell comprising at least; an inner low temperature resistant polymer layer; a middle thermoplastic elastomer (TPE) layer coupled to the inner layer; and an outer high temperature resistant polymer layer coupled the middle layer; the shell is configured to resist further outward expansion when the inner volume reaches a predetermined maximum volume and to contract inwardly when the fluid exits the inner volume; an outlet port for communicating fluid from the reservoir to the patient, wherein any therapeutic fluid in excess of the predetermined maximum volume driven into the reservoir causes a substantially corresponding amount of therapeutic fluid to exit out of the reservoir via the outlet port and/or at least one other port associated with the pliable shell; a vent port for air pressure equalization between an interior of the at least one housing and ambient air; and a fluid channel operationally coupled to the pump to allow the therapeutic fluid to be removed from the reservoir without direct force of the pump on the reservoir.
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28. A method for communicating therapeutic fluid into a patients body, the method comprising:
providing an ambulatory portable dispensing device for delivering the therapeutic fluid to the patients body, the dispensing device comprising; at least one housing accommodating a pump and at least a portion of a reservoir for retaining the therapeutic fluid, the reservoir being configured to collapse as the therapeutic fluid is removed from the reservoir, and a fluid channel operationally coupled to the pump to allow the therapeutic fluid to be removed from the reservoir without direct force of the pump on the reservoir; wherein the reservoir comprises a pliable shell comprising at least; an inner low temperature resistant polymer layer; a middle thermoplastic elastomer (TPE) layer coupled to the inner layer; and an outer high temperature resistant polymer layer coupled the middle layer.
Specification