Compact intravenous fluid delivery system

• US 5,222,946 A
• Filed: 11/21/1991
• Issued: 06/29/1993
• Est. Priority Date: 03/04/1986
• Status: Expired due to Fees

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Kamen, Dean L.
• Primary Examiner(s): RIVELL, JOHN A
• Application Number:
  US07/795,880
• Time in Patent Office: 586 Days
• Field of Search: 604/411, 604/174, 604/251, 604/151, 248/121, 248/125, 248/318, 137/561 A, 137/565
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/1403 Flushing or purging
• CPC Class Codes: A61M 2005/1416 placed on the body of the patient
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/15 Detection of leaks
• CPC Class Codes: A61M 39/22 Valves or arrangement of valves A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405
• CPC Class Codes: A61M 39/24 Check- or non-return valves
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: A61M 39/28 Clamping means for squeezing flexible tubes, e.g. roller clamps tube strippers A61M1/83
• CPC Class Codes: A61M 5/152 pressurised by contraction of elastic reservoirs containers for dispensing contents by contraction of an elastic bag provided therein, in general B65D83/0061
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/16809 by repeated filling and emptying of an intermediate volume pressure infusion using positive displacement pumps A61M5/142
• CPC Class Codes: A61M 5/16813 by controlling the degree of opening of the flow line
• CPC Class Codes: A61M 5/16859 Evaluation of pressure response, e.g. to an applied pulse
• CPC Class Codes: A61M 5/36 with means for eliminating or preventing injection or infusion of air into body dialysis systems, blood oxygenators A61M1/14; haemofiltration equipment A61M1/34; automatic tube cut-off A61M39/281
• CPC Class Codes: A61M 5/365 Air detectors A61M5/1684 takes precedence; in extracorporeal blood circuits A61M1/3626
• CPC Class Codes: B67D 7/0255 squeezing collapsible or flexible storage containers for dispensing beverages on draught B67D1/0462
• CPC Class Codes: F04B 43/043 Micropumps
• CPC Class Codes: F16K 31/004 actuated by piezoelectric means
• CPC Class Codes: F16K 31/005 Piezoelectric benders
• CPC Class Codes: G01F 1/34 by measuring pressure or differential pressure
• CPC Class Codes: G01F 1/66 : by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
• CPC Class Codes: G01F 17/00 : Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies measuring linear dimensions to determine volume G01B
• CPC Class Codes: G01P 13/0066 : by using differences of pressure in the fluid

Abstract

A compact intravenous fluid delivery system for intravenous injection of fluid into a patient has in one embodiment a spike, for connection to a fluid supply reservoir whose top and bottom define a vertical interval; a fluid metering device for accepting fluid from the reservoir and for displaying the flow of fluid; a fluid cannula for conveying fluid from the spike to the fluid metering device: a fluid delivery tube for conveying the fluid from the metering device to the patient; and a reservoir mounting frame for mounting the fluid supply reservoir in relation to the metering device so that the metering device is substantially contained within the vertical interval defined by the top and bottom of the reservoir. In a preferred embodiment, an intravenous tube having a length greater than 20 cm provides a conduit for passage of fluid from the fluid reservoir to the metering device. The system may include a pump mounted so that the pump and the metering device are both substantially contained within the vertical interval defined by the top and bottom of the reservoir.

Claims

1. A compact intravenous fluid delivery system for intravenous injection of fluid into a patient comprising:

spike means, for connection to a fluid supply reservoir having a top and a bottom, the top and bottom of the reservoir defining a vertical interval;

metering means for accepting fluid from the reservoir and for displaying the flow of fluid;

fluid cannula means for conveying fluid from the spike means to the metering means;

fluid delivery means for accepting fluid from the metering means and for conveying the fluid to the patient; and

reservoir mounting means for mounting the fluid supply reservoir in relation to the metering means so that the metering means is substantially contained within the vertical interval defined by the top and bottom of the reservoir.

2. A system according to claim 1, wherein the fluid delivery means includes pump means for pumping the fluid to the patient;

and the mounting means includes means for mounting the pump means in relation to the reservoir mounting means and the metering means so that the pump means and the metering means are both substantially contained within the vertical interval defined by the top and bottom of the reservoir.

3. A system according to claim 1, wherein the mounting means includes means for mounting the system removably and rotatably on a hook.

4. A system according to claim 1, further including means for mounting the system removably and rotatably to a pole.

5. A system according to claim 1, further including carrying means for enabling the patient to carry the system.

6. A system according to claim 5, wherein the carrying means includes a handle.

7. A system according to claim 5, wherein the carrying means includes a strap.

8. A system according to claim 5, wherein the carrying means includes means for attachment to a shoulder harness.

9. A system according to claim 1, wherein the reservoir mounting means includes gripping means for gripping the metering means such that the metering means may be removably mounted.

10. A system according to claim 1, wherein the reservoir mounting means and the metering means have integral construction.

11. A system according to claim 1, wherein the pump means includes a removable wetted portion, wherein the removable wetted portion comprises a cassette formed integrally with a tube.

12. A system according to claim 1, wherein the mounting means includes a battery compartment.

13. A system according to claim 1, wherein the mounting means includes a locking mechanism such that the reservoir is constrained from falling off the mounting means when the patient moves.

14. A device for holding intravenous-fluid-delivery components in a compact manner, the device comprising:

a vertical member having a top end;

means, attached to the vertical member, for mounting a fluid supply reservoir having a top and a bottom, the top and bottom of the reservoir defining a vertical interval;

means, attached to the vertical member, for mounting a metering chamber for accepting fluid from the reservoir and for displaying the flow of fluid, the chamber mounting means so that the chamber is substantially contained within the vertical interval defined by the top and bottom of the reservoir, when both the reservoir and the chamber are mounted; and

an eye located at the top end of the vertical member so that the vertical member may be hung from a pole.

15. A device according to claim 14, wherein the vertical member, the reservoir mounting means and the chamber mounting means have integral construction.

16. A device according to claim 14, wherein the reservoir mounting means includes a locking mechanism such that the reservoir is constrained from falling off the reservoir means mounting means.

17. A device according to claim 14, further including means, attached to the vertical member, for mounting an intravenous-fluid pump.

18. A device according to claim 17, wherein the vertical member, the reservoir mounting means and the chamber mounting means have integral construction.

19. A device according to claim 17, wherein the reservoir mounting means includes a locking mechanism such that the reservoir is constrained from falling off the reservoir means mounting means.