Device for measuring pressure in a fluid
AssigneeMedical Measurement Systems B.V.
InventorsMichael Gondy Jensen, Kristine Larsen, David Van Gorkom, Jens Witte
Life of this patent
Estimating the term…
Abstract
A measurement chamber that is essentially dome shaped and has a base area with a membrane and has at least two connection points fora fluid flow. The measurement chamber has two outer webs opposite each other, one of the webs engaging a clamping edge of a coupling element.
Claims12
A cassette having at least one measurement chamber that can be filled with fluid for use in a device for measuring pressure, comprising the measurement chamber that is dome-shaped and has a base area with a membrane to define a dome-shaped interior and at least two connection points for a fluid flow, each connection point defining an opening communicating with the interior, wherein the connection points are arranged at an angle (α) with regard to each other of 180° to 60° and the cassette has two opposing outer flanges which are designed to engage into at least one clamping edge of a holder, wherein the membrane is configured to contact a measurement surface of a pressure transducer when the two opposing outer flanges engage into the at least one clamping edge of the holder.
A method of using a cassette having at least one measurement chamber, comprising:
- selecting a cassette having at least one measurement chamber that can be filled with fluid for use in a device for measuring pressure, comprising the measurement chamber that is dome-shaped and has a base area with a membrane to define a dome-shaped interior and at least two connection points for a fluid flow, each connection point defining an opening communicating with the interior, wherein the connection points are arranged at an angle (α) with regard to each other of 180° to 60° and the cassette has two opposing outer flanges which are designed to engage into at least one clamping edge of a holder;
- selecting a device for measuring pressure in a fluid, the device including:
- a holder having a first clamping portion and a second clamping portion;
- at least one pressure transducer arranged between the first and second clamping portions and having a measurement surface;
- and
- a pressing roller with which the cassette is fixable to the holder;
- and
- mechanically coupling the cassette to the device to mechanically couple the membrane of the at least one measurement chamber to the measurement surface of the pressure transducer, wherein one of the opposing outer flanges of the cassette engages in a clamping edge of the first clamping portion of the holder and the other opposing outer flange engages in the pressing roller, and wherein the pressing roller is held in a rotatable manner at the second clamping portion of the holder.
Dependencies are inferred from the claim text.