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Antibacterial filter and turbine flowmeter for tests on respiratory functionality

A filter and flow meter technology, which can be used in the evaluation of respiratory organs, dispersed particle filtration, diagnostic recording/measurement, etc., and can solve problems such as increasing the dead angle of the measurement system.

Active Publication Date: 2014-08-13
COSMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0031] - It sometimes happens that antimicrobial filters are connected to flowmeters with inconsistent diameters using adapters, which often introduce undesirable loss and increases the deadspace of the measurement system (i.e., the volume of air that the patient has to breathe again)

Method used

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  • Antibacterial filter and turbine flowmeter for tests on respiratory functionality
  • Antibacterial filter and turbine flowmeter for tests on respiratory functionality
  • Antibacterial filter and turbine flowmeter for tests on respiratory functionality

Examples

Experimental program
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Embodiment Construction

[0051] attached drawings figure 1 (which shows a flow meter used by a patient) also applies in the case of the assembly according to the invention. Also in this case, the assembly comprises a flow meter B accommodated in the grip D and provided with an antibacterial filter C for use by the patient.

[0052] see Figure 7 to Figure 11 , also in the case of the preferred embodiment of the invention shown here, the filter C has a hollow body C1, for example, made of plastic material, substantially in the form of a disk, with The opposite faces protrude and are arranged coaxially relative to the tubular inlet portion C2 and the tubular outlet portion C3.

[0053] It should be noted that the general configuration of the antibacterial filter C can also be quite different from that shown here by way of example only, the only essential condition for the purpose of the invention being that the outlet part C3 of the antibacterial filter incorporates An air delivery device DC configur...

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PUM

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Abstract

A flowmeter and filter assembly for spirometry comprises a flowmeter (B) with a turbine rotor (R) and sensor means for detecting the speed of rotation of the rotor, and a filter (C) upstream of the flowmeter (B). An air-conveying device (DC) modifies the direction of the flow of air at outlet from the filter (C) to set the rotor (R) in rotation within the flowmeter (B). Said air-conveying device (DC) is integrated in the filter (C) instead of in the flowmeter (B).

Description

technical field [0001] Fields of application of the invention are, for example, spirometry in the clinical field (pulmonology) or in the sports field (e.g. in the assessment of fitness to engage in physical activity) or in the legal field (e.g. in the field of occupational medicine), i.e. in the human assessment of respiratory function. Background technique [0002] The assessment test consisted of measuring exhaled / inhaled air flow via a flow meter attached to the subject's mouth during specific maneuvers instructed by the technical operator. [0003] There are different types of flow meters. The most common flow meters are so-called Fleisch pneumotachometers, Lilly pneumotachometers, Pitot pneumotachometers, mass flow meters, turbine flow meters, ultrasonic flow meters and variable orifice flow meters. [0004] In particular, the invention relates to turbine flow meters. attached drawings figure 1 A patient is shown wearing a nose clip A for closing the nostrils in suc...

Claims

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Application Information

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IPC IPC(8): A61B5/097A61B5/09
CPCA61B5/097A61B5/09B01D46/0015
Inventor P.布鲁格诺里
Owner COSMED
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