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Cartridge for a fluid sample analyser

A cassette and sample technology, which is applied in the analysis of materials, the analysis of fluids using sonic/ultrasonic/infrasonic waves, and the analysis of materials using sonic/ultrasonic/infrasonic waves, etc., can solve problems such as difficulty in obtaining a low-volume flow chamber, and improve transmission performance. , low cost, low volume effect

Inactive Publication Date: 2008-09-03
INVERNESS SWITZERLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

WO2128372 and WO0247246 disclose a relatively complex multi-part design for the manufacture of the sealing mechanism, and additionally as stated US6196059, this makes it difficult to obtain low volume flow chambers

Method used

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  • Cartridge for a fluid sample analyser
  • Cartridge for a fluid sample analyser
  • Cartridge for a fluid sample analyser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The cassette shown in the figures is used as part of a quartz crystal microbalance apparatus including a docking station for connecting each of the two flow chambers within the cassette to a fluid delivery / exhaust system , and a transducer in the form of a quartz crystal plate 92 is connected to an electrical circuit to vibrate the quartz and measure the vibration properties of the quartz. Such a device is described in the applicant's co-pending UK patent application number 0506711.1.

[0051] As mentioned above, the quartz crystal plate 92 forms part of the cassette shown in the figures. The plate, coated with gold on one surface, defines a pattern of a pair of drive electrodes 96 and 98, each electrode aligned with a respective one of the two separate flow chambers. The underside of the plate is also gold coated to form a common ground electrode. A conductive trace (not shown) extends from this electrode to the top surface of the board around the edge of the board t...

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PUM

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Abstract

The present invention provides a cartridge for apparatus for analysing a sample comprising a fluid as a flow cell for receiving the sample. The cell is formed from a substantially rigid support surface (102), a sensor comprising an electrical mechanical transducer (92), for example a wafer of quartz crystal and adhesive means, such as double sided adhesive tape (100) attaching the sensor to the support surface. The support surface and sensor are spaced from each other by a membrane, which may form part of the double sides adhesive tape so as to define the flow cell between the support surface and the sensor. The flow cell also has an opening (for example, 111) through which, in use, the sample passes. The sensor, forming part of the flow cell, comes into contact with the sample to enable the sample to be analysed.

Description

technical field [0001] The present invention relates generally to a cartridge for a device for analyzing a sample containing a fluid, and in particular to a cartridge having a sensor comprising an electro-mechanical transducer for said analysis. Background technique [0002] The invention is applicable to devices in which a transducer, in particular a piezoelectric transducer, adjusts an applied electrical signal, such as a quartz crystal microbalance system, where the transducer vibrates at or near its resonant frequency. [0003] The converter usually has an active surface to which the receiver set is fixed. This group has a chemical affinity or reactivity towards the substance to be detected or analyzed. The species to be analyzed is usually present in a fluid in contact with the active surface of the crystal. [0004] Physical, chemical and biochemical reactions between receptor groups and substances on the surface cause changes in the substances attached to the surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00G01N29/036G01N29/22G01N29/02
CPCG01N29/022G01N29/222G01N2291/0256G01N2291/0422G01N2291/0426
Inventor D·P·戈德弗里M·J·弗罗格利
Owner INVERNESS SWITZERLAND GMBH
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