Medication delivery apparatus

• US 6,074,366 A
• Filed: 01/16/1998
• Issued: 06/13/2000
• Est. Priority Date: 01/16/1998
• Status: Expired due to Fees

• Current Assignee: Tandem Medical, Inc.
• Original Assignee: Tandem Medical, Inc.
• Inventors: Rogers, Bobby E., Lieberman, Marc S., Doyle, Marc C.
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US09/008,111
• Time in Patent Office: 879 Days
• Field of Search: 604/151, 604/131, 604/80, 604/82, 604/83, 604/403, 604/404, 604/407, 604/408, 604/409, 604/410, 604/415, 604/65.67, 141/100, 141/114, 141/9, 141/325, 141/326
• US Class Current: 604/151
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61M 5/1407 Infusion of two or more substances
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence

Abstract

It is a primary object of the present invention to provide an automated system based on an integral fluid bag for administering a variety of intravenous drug regimens and reducing the vagaries of existing manual systems. The fluid has multiple chambers configured to implement a prescribed intravenous medical therapy. Each chamber'"'"'s geometry (size, shape), sequence and position, alone and in combination with the other chambers, matches the prescribed intravenous therapy or drug regimen. The bag'"'"'s configuration assures that the intravenous therapy is administered in accordance with the prescribed drug regimen, thus automating the previous manual method. A choice of fluid bag configurations may be stocked so that a prescription for well known and widely accepted drug regimens may be filled by merely selecting a bag with the appropriate chamber configuration and filling it with the prescribed medications.

Claims

1. A fluid delivery apparatus for the automated sequential or concurrent infusion of a plurality of pharmacological agents, said apparatus comprising a plurality of chambers each configured with a respective geometry, wherein each chamber configuration controls the volume of each pharmacological agent administered, the rate at which each pharmacological agent is administered, and the regimen with which said pharmacological agent is administered.

2. A fluid delivery apparatus as defined in claim 1, further comprising:

a common passageway; and

a plurality of chamber passageways, each chamber passageway being coupled between the common passageway and a respective chamber.

3. A fluid delivery apparatus as defined in claim 2, further comprising a high pressure clip having at least first and second positions, wherein, in the first position, the clip closes the plurality of chamber passageways, and in the second position, the clip permits fluid flow through the plurality of chamber passageways.

4. A fluid delivery apparatus as defined in claim 3, wherein the high pressure clip comprises first and second bars, the first bar has two double notched prongs and the second bar has two sockets, each socket having a ledge for engaging a respective notched prong.

5. A fluid delivery apparatus as defined in claim 4, wherein the first and second bars are coupled by a small flexible plastic strip.

6. A fluid delivery apparatus as defined in claim 2, further comprising a pressure sensing dome in fluid communication with the common passageway.

7. A fluid delivery apparatus as defined in claim 2, wherein the common passageway is coupled to an outlet port.

8. A fluid delivery apparatus as defined in claim 2, wherein the common passageway is coupled to an integral connector.

9. A fluid delivery apparatus as defined in claim 2, further comprising a frangible rupture seal between at least one chamber and the corresponding chamber passageway.

10. A fluid delivery apparatus as defined in claim 1, wherein at least one chamber includes a sealable fill port and a sealable vent port.

11. A fluid delivery apparatus as defined in claim 1, wherein at least one chamber includes a resealable port.

12. A fluid delivery apparatus as defined in claim 1, further comprising an infusion pump with a spring driven roller for sequentially compressing the plurality of chambers.

13. A fluid delivery apparatus as defined in claim 12, wherein the pump includes hinged door having a release tab.

14. A fluid delivery apparatus as defined in claim 1, further comprising an infusion pump actuated by an electrically driven motor for applying pressure to the chambers.

15. A fluid delivery apparatus as defined in claim 14, wherein the pump includes a display having status indicator lights, dose buttons, control buttons, a keypad, and a clock for controlling and indicating the status of an agent administration.

16. A fluid delivery apparatus as defined in claim 1, further comprising an infusion pump having an inflatable bladder for applying pressure to the chambers.

17. A fluid delivery apparatus as defined in claim 16, wherein the pump includes a belt for sequentially releasing the bladder for applying pressure to the chambers.

18. A fluid delivery apparatus as defined in claim 16, wherein the pump bladder includes a series of sequentially inflatable bladders for sequentially applying pressure to the chambers.

19. A fluid delivery apparatus as defined in claim 18, further comprising a flexible bladder pad coupled to the series of bladders for transferring pressure from the series of bladders to the chambers and locally distributing the force applied by any one of the series of bladders.

20. A fluid delivery apparatus as defined in claim 16, further comprising valves that are controllably opened to determine the sequence by which the agents are administered.

21. A fluid delivery apparatus as defined in claim 1, wherein the chambers are configured to sequentially administer the agents.

22. A fluid delivery apparatus as defined in claim 1, wherein the chambers are configured to concurrently administer at least two of the agents.

23. A fluid delivery apparatus as defined in claim 1, wherein the, wherein each chamber'"'"'s size and shape controls the rate, volume, and time the agents are administered.

24. A fluid delivery apparatus as defined in claim 1 wherein each chamber'"'"'s position controls time the agents are administered.

25. An automated fluid delivery apparatus for sequentially or concurrently infusing a plurality of medications, comprising a fluid bag which is constructed from medical grade plastic sheets that are bonded together in a manner to define a plurality of separate chambers lying in a plane, each chamber being configured with a respective geometry position and sequence for controlling the rate, volume and time of medication administration.

26. An automated fluid delivery apparatus as defined in claim 25, wherein the rate of fluid flow from the chambers is controlled by an orifice.