Fluid dispenser

• US 20080027386A1
• Filed: 07/31/2007
• Published: 01/31/2008
• Est. Priority Date: 07/31/2006
• Status: Active Grant

• Current Assignee: BioQ Pharma Incorporated
• Original Assignee: Joshua W. Kriesel, Marshall S. Kriesel, Thomas N. Thompson
• Inventors: Kriesel, Joshua W., Thompson, Thomas N., Kriesel, Marshall S.
• Granted Patent: US 8,057,435 B2
• Time in Patent Office: Days
• US Class Current: 604/132
• CPC Class Codes: A61M 2005/14506 mechanically driven, e.g. spring or clockwork
• CPC Class Codes: A61M 5/141 with capillaries for restricting fluid flow
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence
• CPC Class Codes: A61M 5/16813 by controlling the degree of opening of the flow line
• CPC Class Codes: A61M 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28

Abstract

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.

Claims

1. A dispensing device for dispensing medicaments to a patient comprising:

(a) a supporting structure;

(b) a collapsible reservoir carried by said supporting structure, said collapsible reservoir containing fluid and having an outlet port;

(c) a stored energy means operably associated with said collapsible reservoir for collapsing said reservoir;

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

(e) fluid flow control means carried by 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 for controlling the rate of fluid flow from said collapsible reservoir toward said administration set; and

(ii) reservoir accessing means for controlling fluid flow between said collapsible reservoir and said rate control means.

2. The dispensing device as defined in claim 1 in which said stored energy means comprises a spring operably associated with said collapsible reservoir.

3. The dispensing device as defined in claim 1 in which said stored energy means comprises a collapsible-expandable cellular member.

4. The dispensing device as defined in claim 1 in which said collapsible reservoir comprises a bellows structure.

5. The dispensing device as defined in claim 1 in which said collapsible reservoir comprises a collapsible container.

6. The dispensing device as defined in claim 1 in which said rate control means comprises a rate control plate having at least one fluid flow channel interconnected with said outlet of said collapsible reservoir.

7. The dispensing device as defined in claim 1 in which said outlet port of said reservoir is closed by a pierceable septum and in which said reservoir accessing means comprises a penetrating member for penetrating said pierceable septum when said fluid flow control means is in said second position.

8. The apparatus as defined in claim 1, further including locking means carried by said supporting structure for releasably locking said fluid flow control means in said first position.

9. The apparatus as defined in claim 1, further including a carriage assembly interconnected with said supporting structure for movement between a first position and a second position, said collapsible reservoir being carried by said carriage assembly.

10. A dispensing device for dispensing medicaments to a patient comprising:

(a) a supporting structure comprising a base assembly and a 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;

(c) a semi-rigid collapsible reservoir carried by said carriage assembly, said collapsible reservoir containing fluid to be dispensed to the patient and having an outlet port;

(d) 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 guide member connected to said base assembly and a guide rib connected to said housing of said supporting structure;

(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 spring;

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

(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.

11. The dispensing device as defined in claim 10 in which said flow control means comprises:

(a) rate control means for controlling the rate of fluid flow from said collapsible reservoir toward said administration set; and

(b) reservoir accessing means for controlling fluid flow between said collapsible reservoir and said rate control means.

12. The dispensing device as defined in claim 10, further including latching means carried by said supporting structure for locking said carriage assembly in said first position.

13. The dispensing device as defined in claim 10 in which said collapsible reservoir comprises a semi-rigid bellows structure.

14. The dispensing device as defined in claim 10 in which said collapsible reservoir comprises a semi-rigid collapsible container.

15. The apparatus as defined in claim 10, further including locking means carried by said supporting structure for releasably locking said fluid flow control means in said first position.

16. The apparatus as defined in claim 10 in which said spring comprises a coil spring in compression.

17. The apparatus as defined in claim 10 in which said spring comprises a coil spring in tension.

18. The apparatus as defined in claim 10 in which said flow control means comprises a reservoir accessing means, including a penetrating member.

19. The apparatus as defined in claim 18 in which said penetrating member is coated.

20. The apparatus as defined in claim 18 in which said penetrating member is sharp ended.

21. The apparatus as defined in claim 18 in which said penetrating member is blunt ended.

22. The apparatus as defined in claim 21 in which said outlet of said part is closed by a slit septum.

23. 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) latching 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 comprising a blow-molded, collapsible container having a collapsible side wall, 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 rate 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-mold-seal, collapsible container.

24. The dispensing device as defined in claim 23, further including disabling means carried by said supporting structure for blocking fluid flow toward said administration set.

25. The dispensing device as defined in claim 23 in which said collapsible reservoir comprises a bellows structure.

26. The dispensing device as defined in claim 23 in which said collapsible reservoir comprises a collapsible container.

27. The dispensing device as defined in claim 23 in which said collapsible reservoir is semi-rigid.

28. The dispensing device as defined in claim 23 in which said collapsible reservoir is constructed from a plastic material.

29. The dispensing device as defined in claim 23 in which said collapsible reservoir is pre-filled with the fluid to be dispensed to the patient.

30. The dispensing device as defined in claim 23 in which said collapsible reservoir is pre-filled with an injectable medicament.

31. The dispensing device as defined in claim 23 in which said collapsible reservoir is pre-filled with a parental fluid.