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Fluid dispensing device with additive

  • US 8,292,848 B2
  • Filed: 06/25/2007
  • Issued: 10/23/2012
  • Est. Priority Date: 07/31/2006
  • Status: Active Grant
First Claim
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1. A dispensing device for dispensing medicaments to a patient comprising:

  • (a) a supporting structure comprising a base assembly and an 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 reservoir defining assembly formed in accordance with an aseptic blow-fill-seal manufacturing technique and including a pre-filled, collapsible reservoir carried by said carriage assembly, said collapsible reservoir containing medicaments to be dispensed to the patient and having an outlet port, said reservoir defining assembly comprising a collapsible container having an integrally formed top, bottom and collapsible side wall, said top wall having an integrally formed neck portion sealably closed by a closure wall;

    (e) guide means connected to said supporting structure for guiding travel of said carriage assembly between said first position and said second position, said guide means comprising a plurality of circumferentially spaced guide members connected to said base assembly and a guide rib connected to said housing of said supporting structure, said spaced-apart guide members being slidably received within said openings provided in said carriage base;

    (f) 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;

    (g) an administration set, including an administration line interconnected with said outlet port of said collapsible reservoir;

    (h) 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 flow control means 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 plurality of fluid flow channels interconnected with said outlet of said collapsible reservoir; and

    (ii) operating means carried by said supporting structure for controlling fluid flow between said collapsible reservoir and said rate control means; and

    (j) adding means carried by said supporting structure for adding a medicament to said fluid contained within said fluid reservoir.

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