Device for Measuring Pressure in a Fluid

• US 20160029941A1
• Filed: 02/28/2014
• Published: 02/04/2016
• Est. Priority Date: 03/04/2013
• Status: Active Grant

• Current Assignee: Medical Measurement Systems BV (2941881 Canada, Inc.)
• Original Assignee: Andromeda Medizinische Systeme GmbH (2941881 Canada, Inc.)
• Inventors: Jensen, Michael Gondy, Larsen, Kristine, Witte, Jens, van Gorkom, David
• Granted Patent: US 10,390,750 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2560/0443 Modular apparatus
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 2562/043 in a linear array
• CPC Class Codes: A61B 5/205 Determining bladder or urethral pressure
• CPC Class Codes: A61B 5/4255 Intestines, colon or appendix
• CPC Class Codes: G01L 19/0023 for flowthrough systems having a flexible pressure transmitting element
• CPC Class Codes: G01L 19/003 using a detachable interface or adapter between the process medium and the pressure gauge
• CPC Class Codes: G01L 9/0001 Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means G01L9/0026, G01L9/0033, G01L9/0082, G01L9/0089, G01L9/0091 take precedence

Abstract

A measurement chamber, and a device for measuring pressure in a fluid, the device including a coupling element, at least one pressure transducer and at least one measuring chamber that can be filled with a fluid. The measurement chamber is mechanically coupled to the measurement surface of the pressure transducer by a membrane. The measurement chamber has at least two connection points for a fluid flow. The at least one pressure transducer is arranged in the coupling element, and the at least one measurement chamber has two outer webs opposite each other, one of the webs engaging a clamping edge of the coupling element and the other web engaging a pressing roller. The pressing roller is rotatably supported and can be connected to the coupling unit in a force-closed manner.

Claims

1. Device for measuring pressure in a fluid, comprising:

a coupling element;

at least one pressure transducer;

at least one measurement chamber which can be filled with a fluid, wherein the measurement chamber is mechanically coupled to the measurement surface of the pressure transducer by a membrane and the measurement chamber has at least two connection points for a fluid flow; and

a pressing roller with which the measurement chamber is stopped;

wherein the at least one pressure transducer is arranged in the coupling element and the at least one measurement chamber has two outer webs positioned opposite each other, wherein one of the webs engages in a clamping edge of the coupling element and the other web engages in the pressing roller, wherein the pressing roller is held in a rotatable manner and can be force-fitted with the coupling unit.

2. Device according to claim 1, wherein the connection points are arranged at an angle (α

) with regard to each other of 180°

to 60°

.

3. Device according to claim 1, wherein the connection points are arranged at an angle (β

) of 0°

to 60°

with regard to the base area of the measurement chamber.

4. Device according to claim 1, wherein at least one of the connection points has a positive Luer lock connection or a negative Luer lock connection.

5. Device according to claim 1, wherein the interior of the measurement chamber has an essentially circular base area.

6. Device according to claim 5, wherein at least one of (i) the base area is open (ii) the membrane covers the open base area and (iii) the membrane is made of a material selected from a group which contains silicone, latex, rubber, and combinations thereof.

7. Device according to claim 1, wherein the membrane is an integral part of the measurement chamber.

8. Device according to claim 1, wherein the pressure transducer is an electromechanical pressure transducer and preferably at least the measuring area of the pressure transducer is covered by the membrane in a form-fitted manner and/or the measuring range of the pressure transducer is arranged centrically in relation to the base area of the measurement chamber.

9. Device according to claim 1, wherein through turning the pressing roller the measurement chamber, the membrane and the pressure transducer are connected to each other in a fluid-tight manner.

10. Device according to claim 1, wherein the interior of the measurement chamber is essentially dome-shaped and/or the dome-shaped interior is flattened in the central area.

11. Device according to claim 1, wherein the measurement chamber has a volume of between 0.1 cm³ and 10 cm³ and/or a base area of between 0.1 cm² and 5 cm².

12. Device according to claim 1, wherein at least two measurement chambers are connected to each other at the web-free outer edge.

13. Device according to claim 1, wherein the coupling element and/or the measurement chamber are at least in sections of partially made of a material selected from a group that includes duroplastic or thermoplastic synthetic materials.

14. Device according to claim 1, wherein the pressing roller is capable of being moved by a motor.

25. A method of using a measurement chamber, comprising:

selecting a measurement chamber according to claim 15; and

utilizing the measurement chamber in a device according to claim 1.

26. The method Use according to claim 25 wherein the measurement chamber is utilized in medicine or medical technology.

15. Measurement chamber that can be filled with fluid for use in a device for measuring pressure, comprising the measurement chamber that is essentially dome-shaped and has a base area with a membrane and at least two connection points for a fluid flow, wherein the connection points are arranged at an angle (α

) with regard to each other of 180°

to 60° and

the measurement chamber has two opposing outer webs which are designed to engage into at least one clamping ed e of a coupling element.

16. Measurement chamber according to claim 15, wherein the connection points are arranged at an angle (β

) of 0°

to 60°

with regard to the base area of the measurement chamber.

17. Measurement chamber according to claim 16, wherein the connection points are arranged at a distance from the base area of 2 to 10 mm.

18. Measurement chamber according to claim 16, wherein at least one of the openings of the connection points in the interior of the measurement chamber has a least in sections a moulding facing the base area.

19. Measurement chamber according to claim 15, wherein at least one of the connection points has a positive Luer lock connection or a negative Luer lock connection.

20. Measurement chamber according to claim 15, wherein the interior of the measurement chamber has an essentially circular base area.

21. Measurement chamber according to claim 20, wherein the base area is open and/or the membrane covers the open base area and/or the membrane is made of a material selected from a group which contains silicone, latex, rubber, and combinations thereof.

22. Measurement chamber according to claim 15, wherein the interior is essentially dome-shaped and/or the dome-shaped interior is flattened in the central area.

23. Measurement chamber according to claim 15, wherein the measurement chamber has webs on at least two opposing outer edges.

24. Measurement chamber according to claim 23, wherein on at least one of the web-free edges at least one further measurement chamber is arranged.