发明名称 |
MEASURING METHOD AND PORTABLE MEASURE BENCH FOR LIQUID MICRO-FLOWS, AND APPLICATION FOR CHARACTERISING MICRO-PUMPS FOR MEDICAL USE |
摘要 |
The purpose of the invention is to provide reliable and precise values for liquid micro-flows supplied by a pump (30) using a customised follow-up for detecting operational irregularities in a quasi-instantaneous manner and under variable temperature and/or atmospheric pressure conditions. Accordingly, the invention provides (10) coupling two complementary measurement means, i.e. an average measurement and an instantaneous measurement of the flow. In one embodiment, the micro-pump (30) to be tested is arranged in a housing (20) and comprises temperature and pressure control means (22, 24) for making at least two complementary measurements of the flows, i.e. average and instant flows, following a gas micro-bubble (119) in a micro-pipette (120). The bubble is inserted into the liquid by an injection pad (110) provided with a pressure sensor (112) dedicated to the measurement of the counter-pressure of the pump (30). The flow measurements are respectively made by two optical sensors (124a, 124b) and a camera (126) that transmit the data to a data processing unit (129). The pump (30) is connected on a connection pad (100, 102, 104) of a specific sensor (106) for measuring the clogging pressure. The counter-pressure is adjusted at the outlet of the micro-pipette (120) by a variable opening (130) controlled by the processing unit (129). |
申请公布号 |
EP2382449(A1) |
申请公布日期 |
2011.11.02 |
申请号 |
EP20100704583 |
申请日期 |
2010.01.19 |
申请人 |
INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE TOULOUSE;UNIVERSITE PAUL SABATIER;SADIR ASSISTANCE;FEDERATION ANTADIR |
发明人 |
COLIN, STEPHANE;BARROT, CHRISTINE;LAURIEN, NICOLAS;BALDAS, LUCIEN;FORET, DIDIER;CASANOVA, FREDERIC;THUILLART, OLIVIER |
分类号 |
G01F1/66;A61M5/168;F04B19/00;G01F1/708 |
主分类号 |
G01F1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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