초록 ▼

A compact fluid dispenser for use in controllably dispensing fluid medicaments, such as analgesics and like medicinal agents from the device reservoir which is provided in the form of a novel bellows-type assembly. The fluid dispenser includes a unique stored energy mechanism that provides the force

A compact fluid dispenser for use in controllably dispensing fluid medicaments, such as analgesics and like medicinal agents from the device reservoir which is provided in the form of a novel bellows-type assembly. The fluid dispenser includes a unique stored energy mechanism that provides the force necessary to continuously and substantially uniformly expel fluid from the device reservoir. The device also includes a novel adjustable flow rate control assembly that is disposed intermediate the fluid reservoir outlet and the outlet port of the device for precisely controlling the rate of fluid flow from the outlet port toward the patient.

대표청구항 ▼

We claim: 1. A dispensing device for dispensing medicaments to a patient comprising:(a) a supporting structure comprising a base assembly and a generally cylindrically shaped outer housing interconnected with said base assembly;(b) a carriage assembly interconnected with said supporting structure fo

We claim: 1. A dispensing device for dispensing medicaments to a patient comprising:(a) a supporting structure comprising a base assembly and a generally cylindrically shaped outer housing interconnected with said base assembly;(b) a carriage assembly interconnected with said supporting structure for movement between a first position and a second position, said carriage assembly comprising a carriage having a carriage base provided with a plurality of circumferentially spaced openings and a generally cylindrically shaped sidewall terminating in a radially outwardly extending flange;(c) locking means carried by said supporting structure for locking said carriage assembly in said first position;(d) a collapsible reservoir carried by said carriage assembly for containing fluid to be dispensed to the patient, said collapsible reservoir having an outlet port and comprising a blow-molded, collapsible container having a collapsible side wall, a bottom wall connected to said collapsible side wall, said bottom wall having an upstanding ullage portion, a top wall connected to said collapsible side wall and a reservoir septum assembly sealably connected to said top wall, said reservoir septum assembly including a pierceable septum;(e) a stored energy means operably associated with said carriage assembly for moving said carriage assembly between said first and second positions, said stored energy means comprising a coil spring having a first end in engagement with said supporting structure and a second end in engagement with said radially outwardly extending flange of said carriage;(f) an administration set, including an administration line interconnected with said outlet port of said collapsible reservoir; and(g) fluid flow control means carried by said base assembly of said supporting structure for controlling fluid flow from said collapsible reservoir toward said administration set, said fluid flow control means being movable from a first position to a second position and comprising:(i) rate control means carried by said supporting structure for controlling the rate of fluid flow from said collapsible reservoir toward said administration set, said rate control means comprising a rate control plate having a fluid flow micro-channel interconnected with said outlet of said collapsible reservoir; and(ii) reservoir accessing means for controlling fluid flow between said collapsible reservoir and said rate control means, said reservoir accessing means comprising a septum penetrating member for penetrating said pierceable septum of said reservoir septum assembly of said blow-molded, collapsible container.