Multiple Drug Injection Apparatus

• US 20080171996A1
• Filed: 06/17/2007
• Published: 07/17/2008
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: L M M Global Innovations, Inc.
• Original Assignee: Dragon Drug Gun, Inc.
• Inventors: Lafferty, John Peter
• Granted Patent: US 7,753,890 B2
• Time in Patent Office: Days
• US Class Current: 604/187
• CPC Class Codes: A61M 2005/3125 specific display means, e.g. to indicate dose setting
• CPC Class Codes: A61M 2005/3139 Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
• CPC Class Codes: A61M 2005/31508 provided on the piston-rod
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/6045 having complementary physical shapes for indexing or registration purposes
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 5/001 Apparatus specially adapted for cleaning or sterilising syringes or needles
• CPC Class Codes: A61M 5/14526 the piston being actuated by fluid pressure
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/19 having more than one chamber , e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly surgical glue applicators A61B17/00491
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155
• CPC Class Codes: A61M 5/2455 with sealing means to be broken or opened
• CPC Class Codes: A61M 5/315 Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
• CPC Class Codes: A61M 5/31591 Single dose, i.e. individually set dose administered only once from the same medicament reservoir, e.g. including single stroke limiting means
• CPC Class Codes: A61M 5/46 having means for controlling depth of insertion

Abstract

A fluid dispensing device, particularly suited to medicine but also having many other applications. The device selectively dispenses any of one or more fluids contained within the device. Adapters on the dispensing end of the unit permit the device to be effectively used for intra-venous, intra-dermal or intramuscular injections, gasses, colloids, gels, liquids or other fluids. Adapters on the head of the unit permit the device to be used with or without electrical power and to varying degrees of automatic control for timing, sequence, volume of fluid dispensed and other features. A preferred embodiment utilizes a pre-formatted, disposable or re-useable cartridge of several drugs suited for a particular medical purpose.

Claims

1. A fluid dispensing device comprising:

a) a head assembly comprising one or more shafts that controllably extend and retract and a means to power and control said shafts;

b) a case assembly that comprises one or more vessels that contain fluid where said shaft can selectively exert force onto a vessel thereby expelling said fluid from the vessel;

c) a manifold assembly that channels the dispensed fluid from each of said vessels through a common output.

2. A fluid dispensing device set forth in claim 1 further characterized in that said means to power said head assembly is springs, pneumatic cylinders or electronic lineal actuators.

3. A fluid dispensing device set forth in claim 1 further characterized in that said vessels are unified into a cartridge removable from said case assembly.

4. A fluid dispensing device set forth in claim 1 further characterized in that the fluid dispensation is computer controlled.

5. A fluid dispensing device set forth in claim 1 further characterized in that said manifold assembly has a port for an external fluid source to flush through said manifold assembly.

6. A fluid dispensing device set forth in claim 1 further characterized in that one way valves are between each of said vessels and said manifold assembly.

7. A fluid dispensing device set forth in claim 1 further characterized in that a mechanical means to stop fluid dispensation at a selectable volume is present.

8. A method of using the fluid dispensing device as set forth in claim 1 further characterized in that the fluids dispensed are drugs pre-selected for a specific medical procedure.

9. A method of using the fluid dispensing device as in claim 1 where the fluids dispensed are lubricants, food products, gasses, liquids, chemical reagents, tints, colorants, stains, paints or gels.

10. A fluid dispensing device set forth in claim 1 further characterized in that said manifold assembly includes a bubble trap.

11. A fluid dispensing device comprising:

a) a head assembly comprising a means to select a fluid to be dispensed and a means to dispense a fluid;

b) a case assembly that contains one or more vessels containing fluid to be dispensed;

c) a manifold assembly that channels the fluids to be dispensed through a common output port.

12. A fluid dispensing device set forth in claim 11 further characterized in that said means to power said head assembly is a spring, pneumatic cylinder or electronic lineal actuator.

13. A fluid dispensing device set forth in claim 11 further characterized in that said vessels are unified into a cartridge removable from said case assembly.

14. A fluid dispensing device set forth in claim 11 further characterized in that the fluid dispensation is computer controlled.

15. A fluid dispensing device set forth in claim 11 further characterized in that said manifold assembly has a port for an external fluid source to flush through said manifold assembly.

16. A fluid dispensing device set forth in claim 11 further characterized in that one way valves are between each of said vessels and said manifold assembly.

17. A fluid dispensing device set forth in claim 11 further characterized in that a mechanical means to stop fluid dispensation at a selectable volume is present.

18. A fluid dispensing device comprising a case that contains multiple fluids each in a vessel, a means to select a fluid to be dispensed and a manifold assembly to direct each fluid from said vessel through a common output port.

19. A fluid dispensing device set forth in claim 18 further characterized in that said means to power said head assembly is a spring, pneumatic cylinder or electronic lineal actuator.

20. A fluid dispensing device set forth in claim 18 further characterized in that said vessels are unified into a cartridge removable from said case assembly.

21. A fluid dispensing device set forth in claim 18 further characterized in that one way valves are between each of said vessels and said manifold assembly.