CN103134645A - Device and method for detecting leakage, blocking, and damage of filtering membrane of infusion apparatus - Google Patents

Device and method for detecting leakage, blocking, and damage of filtering membrane of infusion apparatus Download PDF

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Publication number
CN103134645A
CN103134645A CN2013100821719A CN201310082171A CN103134645A CN 103134645 A CN103134645 A CN 103134645A CN 2013100821719 A CN2013100821719 A CN 2013100821719A CN 201310082171 A CN201310082171 A CN 201310082171A CN 103134645 A CN103134645 A CN 103134645A
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China
Prior art keywords
filtering membrane
pressure
survey
transfusion device
stifled
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CN2013100821719A
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CN103134645B (en
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邹小龙
王尚国
邹绍俊
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SHANGHAI BAODAO MEDICAL EQUIPMENT CO Ltd
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SHANGHAI BAODAO MEDICAL EQUIPMENT CO Ltd
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Abstract

The invention relates to a device and a method for detecting leakage, blocking, and damage of a filtering membrane of an infusion apparatus and belongs to the technical field of detecting the blocking and the leakage of medical apparatus and instruments. The method for detecting the leakage, the blocking, and the damage of the filtering membrane of the infusion apparatus is characterized by including the following steps: a) clamping one end, close to the filtering membrane, of the infusion apparatus by using a clamp device, covering a needle cap, enabling an aerating mouth of the infusion device to be directed at an air outlet and carrying out a first aerating, enabling pressure to be transmitted to an outer data collecting device by a pressure sensor, enabling operators to be prompted by blocking detecting data through a display screen and an alarm prompting light by the data collecting device, and finishing detecting the blocking; b) loosing the clamp device, and meanwhile carrying out a second aerating, after air pressure is stable, enabling the stable pressure to be transmitted to an outer data collecting device by the pressure sensor, comparing the the stable pressure with a set standard pressure range, enabling the operators to be prompted through the display screen and the alarm prompting light, and finishing detecting the leakage and the damage of the filtering membrane.

Description

That a kind of transfusion device leaks hunting, surveys is stifled, survey the apparatus and method of filtering membrane breakage
Technical field
The present invention relates to a kind of transfusion device and leak hunting, survey apparatus and method stifled, the breakage of survey filtering membrane, belong to the stifled technical field of leaking hunting of medicine equipment inspection.
Background technology
Transfusion device belongs to medicine equipment commonly used, its schematic diagram is seen Fig. 1, transfusion device is when manufacturing, need to detect its impermeability, test item comprises, whether whether liquid-transport pipe-line leaks, filters mould 3 is blocked, and filtering membrane 3 plays the air inlet effect, can prevent simultaneously that liquid from flowing out, and plays the effect of gas-liquid filteration.The mode for the water inspection that existing method of testing has namely pours pressurized air, then is immersed in the water, and detects by the mode of observing bubble, and this detection mode poor effect easily causes careless omission.Application number is 201110377352.5, date of publication is the detecting leakage block apparatus that the Chinese invention patent on June 13rd, 2012 discloses a kind of transfusion device, when this device leaks hunting, by transfusion device is inflated, be equipped with simultaneously tensimeter, by clamping woven hose near an end of filtering membrane 3, measure manometric indicating value, by digital-to-analog conversion, the pressure data that gathers be converted to digital signal and directly read by display screen again, judging whether to leak by force value; When whether this device to test filtering membrane stops up, decontrol the clamp device of woven hose, gas outwards spills from filtering membrane 3, and according to the drop-out value of internal gas pressure in a flash, namely whether pressure reduction is up to standard, judges whether filtering membrane or pipeline stop up.
One of drawback of this proving installation is: because being forms the pressure reduction of moment by unclamping clamp device, can't give upper limit of pressure setting, can only the set pressure lower limit, and namely,, namely be considered to filtering membrane and do not stop up during greater than certain pressure when pressure reduction, be certified products.Can't measure filtering membrane 3 and whether break, transfusion device plastics pin drowning lid also monitoring not out because filtering membrane is when damaged, pressure reduction one reaches the required value of setting surely, thereby is considered to certified products.And if filtering membrane is damaged, can cause the impurity such as bacterium and dust to enter transfusion device, thereby bring infringement for patient's life and health, simultaneously, breaking of filtering membrane also can cause the leakage of liquid medicine, affects normal infusion.
Second drawback of this proving installation is: filtering membrane is surveyed stifled precision too low.Existing transfusion device pick-up unit is only once inflated transfusion device, first infusion pipeline is leaked hunting, then unclamp the clamp device of woven hose, it is exitted naturally, only measure flashy pressure reduction, the large phenomenon of pressure surge scope can occur, especially when the volume of transfusion device inside is larger, pressure surge is more severe, causes testing result inaccurate.If spill airshed and use the flow sensor measurement instead, corresponding cost can increase by tens times than pressure transducer, is not obviously preferred option.Therefore should improve filtering membrane and survey stifled precision, avoid again cost significantly to improve, become a difficult problem of needing solution badly.
The 3rd drawback of this monitoring device is: source of the gas is by a reduction valve 2, connect a plurality of gas outlets 1 after decompression, cause a plurality of gas outlets 1 to give vent to anger simultaneously, even in the time of only need detecting a transfusion device, also must give vent to anger simultaneously in a plurality of gas outlets, on the one hand, wasted the energy, on the other hand, the operator has also been formed interference; Many during with transfusion device when measuring simultaneously, wherein one when large the leakage occurring, air-flow just lets out from this root, causes other several under-inflation, thereby causes testing result inaccurate; In addition, therefore the structure of this inflation generally only can arrange two gas outlets due to the steady air current degree that is difficult to guarantee a plurality of gas outlets, can't detect a plurality of transfusion devices simultaneously, has affected the efficient that detects.
Summary of the invention
The objective of the invention is to solve the problems of the technologies described above, provide a kind of filtering membrane that can detect to break, can significantly improve filtering membrane and survey stifled precision, provide simultaneously a kind of and can satisfy the Simultaneous Stabilization running of a plurality of gas outlets, and the transfusion device that cost does not obviously rise leaks hunting, surveys apparatus and method stifled, the breakage of survey filtering membrane.Technical scheme of the present invention is to be 201110377352.5 at number of patent application, and date of publication is to carry out improved technical scheme on the basis of Chinese invention patent on June 13rd, 2012.
The present invention takes following technical scheme:
That a kind of transfusion device leaks hunting, surveys is stifled, survey the device of filtering membrane breakage, comprise compressed gas source 6, described compressed gas source 6 is communicated with the one group of reduction valve 2 that is connected in parallel, described reduction valve 2 is communicated with each self-corresponding pressure transducer 4, described pressure transducer 4 is communicated with each self-corresponding gas outlet 1, and described pressure transducer 4 sends detected pressures to outside data acquisition equipment; Described compressed gas source also is communicated with solenoid valve 5, and described solenoid valve 5 is connected with clamp device 7, and described clamp device 7 can clamp transfusion device/unclamp.
Further, also comprise the alarm lamp of a pair of different colours, described a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations is warned: serious gas leakage; Small gas leakage; The transfusion device line clogging; Filtering membrane breakage/pin lid comes off.
A kind of use above-mentioned transfusion device leak hunting, survey stifled, as to survey filtering membrane breakage device leak hunting, survey stifled, survey the method for filtering membrane breakage, comprise following process:
A) use clamp device 7 that transfusion device is clamped near an end of moulding pin, the transfusion device inflation inlet is inserted gas outlet 1 to be inflated for the first time, pressure transducer 4 passes to outside data acquisition equipment with pressure, the data acquisition equipment data of leaking hunting are pointed out operating personnel by PLC and alarm lamp, complete and leak hunting;
B) unclamp clamp device 7, inflate for the second time simultaneously, after stable gas pressure, pressure transducer passes to outside data acquisition equipment with this steady pressure, data acquisition equipment compares the normal pressure scope of this steady pressure and setting, and by PLC and alarm lamp, operating personnel are pointed out, complete survey stifled, survey the filtering membrane breakage or the pin lid comes off.
The present invention is directed to existing application number and be the many disadvantages that 201110377352.5 Chinese patent exists, it is improved.Its characteristics are:
at first, on method of testing, in order to realize surveying the function of filtering membrane breakage and improve and survey stifled precision, carry out aeration twice, for the first time the inflation complete the test transfusion device whether leak, inflation is for lasting air pressure is provided for the second time, after clamp device unclamps, the part air-flow flows out from filtering membrane, and after inflating for the second time simultaneously, form in transfusion device and compare a lower stable air pressure of inflation for the first time, the air pressure range of this air pressure with the standard of presetting compared, if this stable air pressure is greater than the upper limit of standard pressure scope, illustrate that transfusion device has stopped up, if this stable air pressure is less than the lower limit of standard pressure scope, the filtering membrane breakage has been described.And prior art is only once inflated, and can only fall to survey by the air pressure that clamp device moment is unclamped in measurement stifled, and measuring accuracy is lower, and the duplicate measurements consistance is poor, when especially the transfusion device volume is larger, fluctuates very large, and can not measure the filtering membrane breakage.
Secondly, on measurement mechanism, because needs carry out defuelling, if according to mode of the prior art, a reduction valve 2 only is set, this reduction valve 2 is communicated with a plurality of gas outlets, give birth to leakage or stop up in case riches all the way, the air pressure fluctuation of all the other bypasses is very large, so air pressure can be stable not, and the present invention will not have gas outlet, road 1 that a reduction valve 2 is set respectively, the problems referred to above have so been overcome, simultaneously, make a plurality of gas outlets arranged side by side are set become possibility, also saved source of the gas.
Beneficial effect of the present invention is:
1) greatly improved and leak hunting, survey stifled precision, especially the consistance of repeated test improves greatly.
2) make measure whether filtering membrane damaged, whether the pin lid comes off becomes possibility.
3) cost is not significantly improved.
4) adopt digital-to-analog conversion automatically to control, automaticity is high.
5) avoid the use traffic meter, obviously do not increase cost when enhancing product performance.
Description of drawings
Fig. 1 is the schematic diagram of transfusion device.
The airing form schematic diagram of Fig. 2 prior art.
Fig. 3 is the schematic diagram of airing form of the present invention.
Fig. 4 is that transfusion device of the present invention leaks hunting, surveys, and air-flow stifled, that survey the device of filtering membrane breakage moves towards schematic diagram.
Wherein, 1, the gas outlet, 2, reduction valve, 3, filtering membrane, 4, pressure transducer, 5, solenoid valve, 6, compressed gas source, 7, clamp device.
Embodiment
The present invention is further described below in conjunction with specific embodiment.
Referring to Fig. 3, Fig. 4, that a kind of transfusion device leaks hunting, surveys is stifled, survey the device of filtering membrane breakage, comprise compressed gas source 6, compressed gas source 6 is communicated with the one group of reduction valve 2 that is connected in parallel, and reduction valve 2 is communicated with each self-corresponding pressure transducer 4, and pressure transducer 4 is communicated with each self-corresponding gas outlet 1, each gas outlet 1 is controlled by gas filling valve separately and is given vent to anger, and pressure transducer 4 sends detected pressures to outside data acquisition equipment; Compressed gas source also is communicated with solenoid valve 5, and solenoid valve 5 is connected with clamp device 7, and clamp device 7 can clamp transfusion device/unclamp.
The alarm lamp that also comprises a pair of different colours, a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations is warned: the serious gas leakage of green light flicker expression; The long bright small gas leakage of green light; The long bright expression transfusion device line clogging of red light; Blinking red lamp represents not lid of filtering membrane breakage or pin lid.
A kind of above-mentioned transfusion device leaks hunting, surveys, and device stifled, that survey the filtering membrane breakage leaks hunting, surveys method stifled, the breakage of survey filtering membrane, comprises following process:
A) use clamp device 7 that transfusion device is clamped near an end of moulding pin, the transfusion device inflation inlet is inserted gas outlet 1 to be inflated for the first time, pressure transducer 4 passes to outside data acquisition equipment with pressure, the data acquisition equipment data of leaking hunting are pointed out operating personnel by display screen and alarm lamp, complete and leak hunting;
b) unclamp clamp device 7, inflate for the second time simultaneously, after stable gas pressure, pressure transducer 4 passes to outside data acquisition equipment with this steady pressure, data acquisition equipment compares the normal pressure scope of this steady pressure and setting, if this steady pressure is greater than the higher limit of normal pressure scope, represent that woven hose or filtering membrane stop up, if this steady pressure is less than the lower limit of normal pressure scope, represent that filtering membrane is damaged, and by display screen and alarm lamp, operating personnel are pointed out, complete to survey and block up, surveying filtering membrane breakage or pin lid comes off.

Claims (3)

1. a transfusion device leaks hunting, surveys device stifled, the breakage of survey filtering membrane, comprises compressed gas source (6), it is characterized in that:
Described compressed gas source (6) is communicated with the one group of reduction valve (2) that is connected in parallel, described reduction valve (2) is communicated with each self-corresponding pressure transducer (4), described pressure transducer (4) is communicated with each self-corresponding gas outlet (1), and described pressure transducer (4) sends detected pressures to outside data acquisition equipment;
Described compressed gas source also is communicated with solenoid valve (5), and described solenoid valve (5) is connected with clamp device (7), and described clamp device (7) can clamp transfusion device/unclamp.
2. transfusion device as claimed in claim 1 leaks hunting, surveys device stifled, the breakage of survey filtering membrane, it is characterized in that: the alarm lamp that also comprises a pair of different colours, described a pair of alarm lamp is connected respectively with each pressure transducer, by flicker, the Chang Liang of a pair of alarm lamp, respectively following four kinds of situations are warned: serious gas leakage; Small gas leakage; The transfusion device line clogging; Filtering membrane breakage/pin lid comes off.
3. right to use requirement 1 a described transfusion device leaks hunting, surveys stifled, as to survey filtering membrane breakage device and leaks hunting, surveys method stifled, the breakage of survey filtering membrane, it is characterized in that, comprises following process:
A) use clamp device (7) that transfusion device is clamped near an end of moulding pin, the transfusion device inflation inlet is inserted gas outlet (1) to be inflated for the first time, pressure transducer (4) passes to outside data acquisition equipment with pressure, the data acquisition equipment data of leaking hunting are pointed out operating personnel by PLC and alarm lamp, complete and leak hunting;
B) unclamp clamp device (7), inflate for the second time simultaneously, after stable gas pressure, pressure transducer passes to outside data acquisition equipment with this steady pressure, data acquisition equipment compares the normal pressure scope of this steady pressure and setting, and by PLC and alarm lamp, operating personnel are pointed out, complete survey stifled, survey the filtering membrane breakage or the pin lid comes off.
CN201310082171.9A 2013-03-14 2013-03-14 A kind of transfusion device leaks hunting, it is stifled to survey, survey the apparatus and method of filtering membrane breakage Active CN103134645B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628308A (en) * 2015-12-16 2016-06-01 上海宝舜医疗器械有限公司 Airtightness detection device and detection method for multi-exhaust infusion apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03148031A (en) * 1989-11-02 1991-06-24 Chubu Electric Power Co Inc Fluid-leakage detecting method of fluid feeding system
JPH08201210A (en) * 1995-01-30 1996-08-09 Tokyo Gas Co Ltd Leakage detecting system of gas pipe arrangement
CN202119599U (en) * 2011-07-05 2012-01-18 成都市新津事丰医疗器械有限公司 Infusion apparatus leakage detection device
CN102494854A (en) * 2011-11-24 2012-06-13 温岭德光自动化设备有限公司 Leakage and plugging detection apparatus of infusion set
CN102636322A (en) * 2012-04-26 2012-08-15 杨礼康 Gas tightness/air permeability automatic detecting device for infusion apparatus and detecting method utilizing same
CN202757743U (en) * 2012-08-07 2013-02-27 江西科伦医疗器械制造有限公司 Infusion needle leak detection device
CN203148637U (en) * 2013-03-14 2013-08-21 上海宝舜医疗器械有限公司 Device detecting leakage, blockage and damaged filtering membrane of transfusion system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03148031A (en) * 1989-11-02 1991-06-24 Chubu Electric Power Co Inc Fluid-leakage detecting method of fluid feeding system
JPH08201210A (en) * 1995-01-30 1996-08-09 Tokyo Gas Co Ltd Leakage detecting system of gas pipe arrangement
CN202119599U (en) * 2011-07-05 2012-01-18 成都市新津事丰医疗器械有限公司 Infusion apparatus leakage detection device
CN102494854A (en) * 2011-11-24 2012-06-13 温岭德光自动化设备有限公司 Leakage and plugging detection apparatus of infusion set
CN102636322A (en) * 2012-04-26 2012-08-15 杨礼康 Gas tightness/air permeability automatic detecting device for infusion apparatus and detecting method utilizing same
CN202757743U (en) * 2012-08-07 2013-02-27 江西科伦医疗器械制造有限公司 Infusion needle leak detection device
CN203148637U (en) * 2013-03-14 2013-08-21 上海宝舜医疗器械有限公司 Device detecting leakage, blockage and damaged filtering membrane of transfusion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105628308A (en) * 2015-12-16 2016-06-01 上海宝舜医疗器械有限公司 Airtightness detection device and detection method for multi-exhaust infusion apparatus

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Denomination of invention: Device and method for detecting leakage, blockage and filter membrane damage of infusion set

Effective date of registration: 20220524

Granted publication date: 20150826

Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch

Pledgor: SHANGHAI BAOSHUN MEDICAL APPARATUS Co.,Ltd.

Registration number: Y2022980006189

PE01 Entry into force of the registration of the contract for pledge of patent right