Rapid infuser with vacuum release valve

• US 10,507,292 B2
• Filed: 11/30/2016
• Issued: 12/17/2019
• Est. Priority Date: 11/30/2016
• Status: Active Grant

• Current Assignee: Belmont Instrument, LLC
• Original Assignee: Belmont Instrument, LLC
• Inventors: Landy, III, John J., Brusard, George G., Dion, Tristan
• Primary Examiner(s): Van, Quang T
• Application Number:
  US15/364,532
• Publication Number:
  US 20180147369A1
• Time in Patent Office: 1,112 Days
• Field of Search: 219629, 219635, 219 50, 219630, 219667, 219676, 219607, 219628, 219670, 604 613, 604 608, 604 29, 604291, 604508, 607108, 607 13, 607114, 607103, 607104, 607105, 607 21, 606 24, 606 27, 606 28, 700299, 700300, 392470-490, 210252, 210258, 2103216, 21032165, 210645, 210646
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• 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 5/44 having means for cooling or heating the devices or media
• CPC Class Codes: H05B 6/108 for heating a fluid

Abstract

Presented herein is an infusate heating system with a vacuum release valve that obviates a system halt failure due to inaccurate detection of fluid level in an infusate reservoir.

Claims

1. A system for heating a fluid, the system comprising:

a conduit defining a central opening;

a primary inductor at least partially within the central opening;

one or more secondary inductors within the conduit;

an inflow tubing connected to the conduit; and

a vacuum release valve,

wherein each of the one or more secondary inductors is substantially parallel, the one or more secondary inductors being separated by gaps,

wherein the primary inductor comprises a coil,

wherein, when the primary inductor is energized, the coil generates magnetic flux passing through the central opening, and

wherein, when pressure in the inflow tubing is lower than atmospheric pressure, the vacuum release valve allows flow of air into the inflow tubing, thereby preventing deformation of the inflow tubing.

2. The system of claim 1, further comprising a reservoir for containing an infusate.

3. The system of claim 2, wherein the vacuum release valve is connected to the reservoir.

4. The system of claim 3, wherein the vacuum release valve is connected to the top of the reservoir.

5. The system of claim 3, wherein the vacuum release valve is connected to the bottom of the reservoir.

6. The system of claim 2, wherein the reservoir further comprises a tubing attached to the top of the reservoir, and the vacuum release valve is connected to the reservoir through the tubing.

7. The system of claim 1, wherein the vacuum release valve allows flow of air into the inflow tubing when pressure in the inflow tubing is 2 psi lower than atmospheric pressure.

8. The system of claim 1, wherein the conduit provides a single fluid flow path.

9. The system of claim 8, wherein the single fluid flow path has a conformation such that fluid is not in contact with the primary inductor.

10. The system of claim 1, further comprising a fluid separator comprising an inlet nozzle and an outlet nozzle, wherein the inlet nozzle directs an inlet flow to the conduit through the fluid separator and the outlet nozzle receives an outlet flow from the conduit through the fluid separator.

11. The system of claim 1, wherein the conduit comprises a plurality of spacers which provides the gaps between the one or more secondary inductors.

12. The system of claim 1, wherein the one or more secondary inductors transfers heat to fluid within the conduit.

13. The system of claim 1, further comprising a bubble trap for removing air bubbles from fluid flowing through the system.

14. A disposable unit of a system for heating a fluid, the disposable unit comprising:

a conduit, defining a central opening;

one or more secondary inductors within the conduit;

an inflow tubing connected to the conduit; and

a vacuum release valve;

wherein each of the one or more secondary inductors is substantially parallel,

wherein the one or more secondary inductors being separated by gaps,

wherein, when pressure in the inflow tubing is lower than atmospheric pressure, the vacuum release valve allows flow of air into the inflow tubing, thereby preventing deformation of the inflow tubing and

wherein the conduit provides a single fluid flow path.

15. The disposable unit of claim 14, further comprising a reservoir for containing an infusate.

16. The disposable unit of claim 15, wherein the vacuum release valve is connected to the reservoir.

17. The disposable unit of claim 16, wherein the vacuum release valve is connected to the top of the reservoir.

18. The disposable unit of claim 16, wherein the vacuum release valve is connected to the bottom of the reservoir.

19. The disposable unit of claim 15, wherein the reservoir further comprises a tubing attached to the top of the reservoir, and the vacuum release valve is connected to the reservoir through the tubing.

20. The disposable unit of claim 14, further comprising a fluid separator comprising an inlet nozzle and an outlet nozzle.

21. The disposable unit of claim 14, further comprising a bubble trap for removing air bubbles from fluid flowing through the system.