Liquid meter assembly

• US 4,712,567 A
• Filed: 03/14/1985
• Issued: 12/15/1987
• Est. Priority Date: 03/14/1985
• Status: Expired due to Fees

• Current Assignee: Baxter International Inc.
• Original Assignee: American Hospital Supply Corp. (Baxter International Inc.)
• Inventors: Gille, Henrick K., Bloom, William G., Siegel, Bernard, Lobodzinski, Richard, Willing, Richard S., Gilroy, Keith, Cheung, Tsang
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/712,953
• Time in Patent Office: 1,006 Days
• Field of Search: 128/771, 128/760, 128/767, 128/768, 604/317, 604/318, 604/322, 73/426, 73/432 A, 171/1, 171/15, 171/244
• US Class Current: 600/584
• CPC Class Codes: A61B 5/14507 specially adapted for measuring characteristics of body fluids other than blood devices for taking samples of body liquids A61B10/0045
• CPC Class Codes: A61B 5/208 adapted to determine urine quantity, e.g. flow, volume
• CPC Class Codes: G01G 17/04 for weighing fluids, e.g. gases, pastes

Abstract

A liquid meter assembly for collecting, metering and monitoring liquid is disclosed. The assembly comprises a container for collecting the liquid, an electrically powered strain gauge suspension device for supporting the container and for determining the weight of the liquid collected in the container and a handle on the container for interconnecting with the strain gauge suspension device. A length of tubing is attached to the container and adapted for interconnecting with the source of the liquid. A tubing support system is included on the strain gauge suspension device for fixedly supporting the tubing to substantially inhibit influence on weight determination due to any movement thereon. A power supply is included in the assembly for supplying power to the strain gauge suspension device.

Claims

1. A liquid meter assembly comprising:

a container for collecting the liquid;

an electrical strain gauge suspension means for supporting the container and for determining the weight of liquid collected in the container;

a handle means on the container for interconnecting with the strain gauge suspension means;

a length of tubing attached to the container and adapted for interconnecting with the source of the liquid;

means to substantially inhibit influence on weight determination due to any movement of said tubing; and

a power supply means for providing power to the strain guage suspension means.

2. A liquid meter assembly according to claim 1 wherein said inhibiting means includes a tubing support on said strain gauge suspension means for fixedly supporting said tubing to said strain gauge suspension means.

3. A liquid meter assembly according to claim 2 wherein said tubing support includes means to releasably fasten said tubing to said suspension means.

4. A liquid meter assembly according to claim 3 further comprising means to lock said tubing to said suspension means.

5. A liquid meter assembly according to claim 1 wherein said liquid is from a living organism.

6. A urine meter assembly for collecting, metering and monitoring urine from a catheterized patient comprising:

a urinary drainage container for collecting the urine

a meter device including

(i) an electrical strain gauge suspension means for supporting the urinary drainage container and measuring the weight of the urine therein and

(ii) control means for converting the weight measurement to volume;

a handle means on the urinary drainage container for interconnecting with the strain gauge suspension means;

a length of tubing attached to the urinary drainage container and adapted for interconnecting with a urinary drainage catheter inserted into a patient;

a tubing support means on the meter device for fixedly supporting the tubing to substantially inhibit any influence on weight determination due to any movement of the patient; and

a power supply means for providing power to the meter device.

7. A urine meter assembly according to claim 6 further including a temperature sensor means for sensing the core temperature of said patient.

8. A urine meter assembly according to claim 7 wherein said temperature sensor means includes a temperature probe within said catheter, the probe being electrically coupled to said meter device.

9. A urine meter assembly according to claim 6 wherein said tubing support means includes three support points.

10. A urine meter assembly according to claim 6 wherein said tubing support means includes one support point located on said meter device wherein said tubing is releasably fastened to said device.

11. A urine meter assembly according to claim 10 wherein said support point on said meter device comprises an opening on said device and said tubing includes a projection thereon adapted to be inserted within the opening.

12. A urine meter assembly according to claim 10 wherein said tubing is fixed to said device through a connector on the meter device which firmly locks said tubing to said device.

13. A urine meter assembly according to claim 12 wherein said connector includes a rotatable knob and associated cam rotatably attached to the meter device.

14. A urine meter assembly according to claim 6 wherein said strain gauge suspension means includes two extending arm members.

15. A urine meter assembly according to claim 14 wherein said tubing support means includes said arm members and a support point on said meter device.

16. A urine meter assembly according to claim 15 wherein said support point on said meter device comprises an opening on said device and said tubing including a projection thereon is adapted to be inserted within the opening.

17. A urine meter assembly according to claim 14 wherein said handle means is freely supported on said arm members.

18. A urine meter assembly according to claim 6 wherein said tubing is formed of a material treated to avoid exerting substantially any influence on weight readings when said container is suported by said strain gauge suspension means.

19. A urine meter assembly according to claim 6 wherein said meter device includes indication means for displaying total urine output, the previous hours urine output or the current hour'"'"'s urine output.

20. A urine meter assembly according to claim 19 wherein said urine output is displayed in terms of volume measurement.

21. A urine meter assembly according to claim 6 wherein said meter device includes indicator means for displaying lapsed time and body core temperature.

22. A urine meter assembly according to claim 6 wherein said power supply means is battery operated.

23. A urine meter assembly for collecting, metering and monitoring urine from a catheterized patient comprising;

a urinary drainage container for collecting urine from said catheterized patient;

a meter device including a housing and an electrical strain guage suspension means for supporting the urinary drainage container and for determining the weight of urine collected in the urinary drainage container;

a handle means on the urinary drainage container for interconnecting with the strain gauge suspension means;

a length of tubing attached to the urinary drainage container and adapted for interconnecting with a urinary drainage catheter inserted into the patient;

a tubing support means on the meter device housing and on the strain gauge suspension means, for fixedly supporting the tubing to substantially inhibit influence on weight determination due to any movement by the patient; and

a power supply means for providing power to the meter device.

24. A urine meter assembly according to claim 23 further including a temperature sensor means within said catheter for sensing the core temperature of said patient, the sensor means being electrically coupled to said meter device.

25. A urine meter assembly according to claim 23 wherein said tubing support means comprises three support points.

26. A urine meter assembly according to claim 23 wherein said tubing support means includes locking means to firmly lock said tubing to said meter device.

27. A urine meter assembly according to claim 26 wherein said tubing includes a projection thereon adapted to be inserted within an opening in said housing and said locking means firmly locks the projection within said housing.

28. A urine meter assembly according to claim 27 wherein said locking means comprises a rotatable knob and associated cam rotatably attached to the meter device.

29. A urine meter assembly comprising:

a urinary drainage container for collecting urine from a catherized patient;

an electrical strain gauge suspension means for supporting the urinary drainage container and for determining the weight of urine collected in the urinary drainage container;

a handle means on the urinary drainage container for interconnecting with the strain gauge suspension means;

a length of tubing attached to the urinary drainage container and adapted for interconnecting with a urinary drainage catheter inserted into the patient;

means to substantially inhibit any influence on weight measurements due to any movement of the catheter or patient; and

a power supply for providing power to the strain gauge suspension means.

30. A urine meter assembly according to claim 29 wherein said inhibiting means comprises at least one point on said strain gauge suspension means at which said tubing is affixed.

31. A urine meter assembly according to claim 29 wherein said inhibiting means comprise three fixation means on the urine meter assembly for affixing the tubing at three points along the tubing to the urine meter assembly.

32. A urine meter assembly according to claim 29 wherein said tubing is fixed to said device by a means which firmly locks said tubing to said device.