CN220018862U - Air tightness batch detection system for leukocyte filter - Google Patents
Air tightness batch detection system for leukocyte filter Download PDFInfo
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- CN220018862U CN220018862U CN202321149462.0U CN202321149462U CN220018862U CN 220018862 U CN220018862 U CN 220018862U CN 202321149462 U CN202321149462 U CN 202321149462U CN 220018862 U CN220018862 U CN 220018862U
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- 238000001514 detection method Methods 0.000 title claims abstract description 95
- 210000000265 leukocyte Anatomy 0.000 title claims abstract description 75
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 11
- 230000002950 deficient Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a batch detection system for the air tightness of leukocyte filters, which comprises an external air source and a leak detector which are communicated by pipelines, wherein the leak detector can be communicated with a plurality of leukocyte filters to be detected, and a stop valve is arranged between the leak detector and each leukocyte filter. According to the utility model, the leak detector is used as a detection instrument, so that the air tightness detection of a plurality of leukocyte filters can be finished in batches, and the detection gas circuit can be controlled through the stop valve to detect a single leukocyte filter; therefore, the technology of batch detection, detection of leakage and single detection in sequence is realized, the high-efficiency detection efficiency is ensured, defective products can be accurately detected, and the method has the advantages of high overall detection speed and suitability for detection of mass products.
Description
Technical Field
The utility model relates to the technical field of manufacturing and detecting equipment of medical instruments, in particular to a leucocyte filter air tightness batch detecting system.
Background
The removal of leukocytes prior to transfusion has many benefits, and is now a common consensus, with the most effective approach being to use leukocyte filters. The most common leukocyte filter is a disc-shaped filter, and after the processing and manufacturing are finished, the air tightness of the leukocyte filter is required to be detected one by one so as to ensure the yield, avoid the blood leakage in the blood transfusion process and prevent the waste and pollution.
The traditional leukocyte filter air tightness detection method mainly adopts a water immersion visual bubble method, has the advantages of simple equipment, small operation difficulty and visual result, but can only detect a single leukocyte filter at a time, and has low efficiency; if the leukocyte filter is detected in batches by adopting the air tightness leak detector and other instruments, after the leakage phenomenon is detected, defective products are difficult to quickly determine, so that popularization and application are limited.
Disclosure of Invention
In order to improve the detection efficiency of the leukocyte filter, the utility model provides a leukocyte filter air tightness batch detection system.
The technical scheme adopted by the utility model is as follows: the utility model provides a leucocyte filter gas tightness batch detection system, includes by the outside air supply and the leak hunting appearance of pipeline intercommunication, leak hunting appearance can with a plurality of leucocyte filters that wait to detect, leak hunting appearance and every all be provided with the stop valve between the leucocyte filter.
Preferably, a pressure regulating valve is arranged between the external air source and the leak detector.
Preferably, the leakage detector further comprises an alarm device, and a pressure sensor of the leakage detector is used as a signal source of the alarm device.
Preferably, the leukocyte filter adopts a packet detection mode.
Preferably, the stop valves are divided into two groups, the two groups of the stop valves have detection states and material preparation states which are alternately switched, at least one of the stop valves in the detection states is opened, and the stop valves in the material preparation states are all closed.
Preferably, the shut-off valve in the detection state is fully opened or only one is opened.
Preferably, the number of the two sets of the stop valves is three.
Preferably, the external air source is connected with at least two leak detectors in parallel, and the stop valves corresponding to the leak detectors are divided into two groups of detection state and material preparation state; all the leukocyte filters are divided into two groups according to the states of the corresponding stop valves, and the two groups are respectively arranged at two operation stations.
Preferably, the stop valve adopts a solenoid valve.
Preferably, the device further comprises a workpiece fixture for placing the leukocyte filter; the detection pipe orifice is connected and matched with the first connecting pipe of the leukocyte filter and is communicated with the stop valve; and the plug is used for plugging the second connecting pipe of the leukocyte filter.
The utility model has the following beneficial effects: according to the utility model, the leak detector is used as a detection instrument, so that the air tightness detection of a plurality of leukocyte filters can be finished in batches, and the detection gas circuit can be controlled through the stop valve to detect a single leukocyte filter; therefore, the technology of batch detection, detection of leakage and single detection in sequence is realized, the high-efficiency detection efficiency is ensured, defective products can be accurately detected, and the method has the advantages of high overall detection speed and suitability for detection of mass products.
Drawings
Fig. 1 is a schematic diagram of a simple pipeline according to an embodiment of the utility model.
FIG. 2 is a schematic diagram of an overall piping system (single leak detector) according to an embodiment of the present utility model.
FIG. 3 is a schematic diagram of an overall piping system (dual leak detector) according to an embodiment of the present utility model.
Fig. 4 is a schematic flow chart of the detection of the operation station i in the embodiment of the utility model.
Fig. 5 is a schematic flow chart of the detection of the operation station ii in the embodiment of the utility model.
Fig. 6 is a schematic diagram of a detection tool for a leukocyte filter according to an embodiment of the utility model.
An external air source 1; a leak detector 2; a leukocyte-filter 3, a first adapter 301, a second adapter 302; a shutoff valve 4; a pressure regulating valve 5; an alarm device 6; a workpiece jig 7; detecting a pipe orifice 8; plug 9, drive jar 10.
Detailed Description
The utility model will be further described with reference to examples and drawings.
In an embodiment, as shown in fig. 1, a batch detection system for air tightness of a leukocyte filter is provided. The detection system of fig. 1 comprises an external air source 1 and a leak detector 2 which are communicated by pipelines, wherein the leak detector 2 can be communicated with a plurality of leukocyte filters 3 to be detected, and a stop valve 4 is arranged between the leak detector 2 and each leukocyte filter 3. The external air source 1 adopts compressed air, and the detection principle of the leak detector 2 is pressure maintaining detection: firstly, inflating and pressurizing the leukocyte filter 3, and cutting off an air source when the pressure reaches a set value (determined by the model of the leukocyte filter 3) so as to keep the internal pressure of the product stable; after the stable pressure maintaining time is entered, the internal pressure value of the leukocyte filter 3 is sensed by the pressure sensor of the leak detector 2, and when the pressure value continuously drops, the leakage phenomenon of the product is indicated, and when the pressure value is stable, the leakage of the product is indicated. In the embodiment, the leak detector 2 is used as a detection instrument, so that the air tightness detection of a plurality of leukocyte filters 3 can be finished in batches, and the detection gas circuit can be controlled by the stop valve 4 to detect a single leukocyte filter 3; therefore, the technology of batch detection, detection of leakage and single detection in sequence is realized, the high-efficiency detection efficiency is ensured, defective products can be accurately detected, and the method has the advantages of high overall detection speed and suitability for detection of mass products.
In the embodiment, as shown in fig. 1, a pressure regulating valve 5 is arranged between an external air source 1 and a leak detector 2. The pressure regulating valve 5 is used for regulating the pressure of the compressed air so as to ensure the stability of the detected air pressure, and is also convenient for selecting reasonable air pressure parameters according to the specification of the leukocyte filter 3.
In the embodiment, as shown in fig. 1, the pressure sensor of the leak detector 2 further comprises an alarm device 6, and the pressure sensor is used as a signal source of the alarm device 6. The alarm device 6 can be an alarm lamp or a buzzer, and can send out an alarm to remind workers to avoid missing detection and false detection when a leakage phenomenon occurs, namely, unqualified products are detected.
In the embodiment, as shown in fig. 2, the leukocyte filter 3 adopts the packet detection mode. Specifically, the stop valves 4 are divided into two groups, each group is three in number, V1, V2 and V3 are the first group, V4, V5 and V6 are the second group, the two groups of stop valves 4 have alternately switched detection states and stock preparation states, at least one of the stop valves 4 in the detection states is opened, and the stop valves 4 in the stock preparation states are all closed. For example, if the first group of V1, V2, V3 is in the detection state and the second group of V4, V5, V6 is in the stock state, then V1, V2, V3 are all on (for batch detection) or only one on (for single detection), and V4, V5, V6 are all off (at this time, leukocyte filter 3 is placed). According to the structure, by controlling the opening and closing of the stop valve 4, the leak detector 2 can continuously detect the two groups of white blood cell filters 3 alternately, so that the leak detector 2 is basically in a working state in the whole process, and the use efficiency of the instrument is greatly improved. In each batch detection, the leak detector 2 corresponds to three leukocyte filters 3, so that not only can the higher batch detection quantity be ensured, but also the detection times of the single leukocyte filter 3 which is possible later can be controlled to be 3 times, and the excessive circulation times can be avoided, thereby ensuring the best overall efficiency.
In the embodiment, as shown in fig. 3, at least two leak detectors 2 are connected in parallel with an external air source 1, and stop valves 4 corresponding to the leak detectors 2 are divided into two groups of detection states and material preparation states; all leukocyte filters 3 are divided into two groups according to the state of the corresponding stop valves 4, and are respectively arranged at two operation stations. The structure has two characteristics: firstly, a plurality of leak detectors 2 are connected in parallel, so that the overall detection capability of the system is improved; secondly, according to the state of the stop valve 4, the corresponding leukocyte filter 3 is arranged at two operation stations, one operation station prepares materials, and the other operation station detects, so that the operation of personnel is facilitated. In the embodiment, two leak detectors 2 are connected in parallel, namely, each operation station can detect 6 leukocyte filters 3 simultaneously; on the basis, a larger number of leak detectors 2 can be connected in parallel according to the production tact to improve the detection capability.
In the embodiment, the shutoff valve 4 is a solenoid valve. The electromagnetic valve is convenient to realize automatic control, and the control unit is used for automatically controlling the opening and closing of the electromagnetic valve, so that batch detection or single-piece detection of multiple workpieces is realized.
In the embodiment, as shown in fig. 6, the device further comprises a workpiece fixture 7 for placing the leukocyte filter 3; a detection pipe orifice 8 which is connected and matched with the first connecting pipe 301 of the leukocyte filter 3 and is communicated with the stop valve 4; a plug 9 for plugging the second connection tube 302 of the leukocyte-filter 3. The workpiece fixture 7, the detection pipe orifice 8 and the plug 9 together form a detection tool of the leukocyte filter, wherein the workpiece fixture 7 and the plug 9 are fixed parts, the detection pipe orifice 8 is a movable part, and the detection pipe orifice 8 is driven by the driving cylinder 10 to press the leukocyte filter 3, so that the detection pipe orifice 8 and the plug 9 are respectively kept in good contact with the first connecting pipe 301 and the second connecting pipe 302, and a sealing space is formed inside the leukocyte filter 3, so that the air pressure detection of the leak detector 2 is realized. In addition, the contact parts of the detection pipe orifice 8 and the plug 9 with the first connecting pipe 301 and the second connecting pipe 302 are made of flexible materials, so that the sealing performance of the contact parts is ensured, the detection accuracy is ensured, and the connecting pipe of the leukocyte filter is protected from being damaged.
In the example, as shown in FIG. 4, the procedure of the air tightness test of the 6 leukocyte filters 3 in the operation station I is shown. The method comprises the following steps:
step 1, placing a leukocyte filter 3 on an operation station I, and then matching a detection pipe orifice 8 and a plug 9 in place;
step 2, all the six stop valves 4 (V1/V2/V3, V7/V8/V9) are opened, and the two leak detectors 2 (#A, #B) synchronously operate to perform the actions of inflation, pressure stabilization, test and exhaust;
step 3, the leak detector 2 (#A) judges that the leukocyte filter 3 corresponding to V1/V2/V3 has no leakage if the pressure value is stable; if the pressure value continuously drops, the leak detector 2 (#A) circularly detects three times according to the sequence of (1) V1 on, V2/V3 off, (2) V2 on, V1/V3 off, (3) V3 on, V1/V2 off (the actions of inflating, stabilizing the pressure, testing and exhausting are performed), and the detection result of the leukocyte filter 3 corresponding to V1/V2/V3 is displayed;
step 4, simultaneously with step 3, the leak detector 2 (#B) judges that the leukocyte filter 3 corresponding to V7/V8/V9 has no leakage if the pressure value is stable; if the pressure value continuously drops, the leak detector 2 (#B) circularly detects three times (performing the actions of inflation, pressure stabilization, test and exhaust) according to the sequence of (1) V7 on, V8/V9 off, (2) V8 on, V7/V9 off, (3) V9 on, V7/V8 off, and displays the detection result of the leukocyte filter 3 corresponding to V7/V8/V9;
and 5, taking down the leukocyte filter 3 from the operation station I after detection is completed, and placing the leukocyte filter according to classification of good products and defective products.
In the embodiment, as shown in fig. 5, the procedure of detecting the air tightness of the 6 leukocyte filters 3 in the operation station ii is shown. The method comprises the following steps:
step 1, placing a leukocyte filter 3 on an operation station II, and then matching a detection pipe orifice 8 and a plug 9 in place;
step 2, all the six stop valves 4 (V4/V5/V6, V10/V11/V12) are opened, and the two leak detectors 2 (#A, #B) run synchronously to perform the steps of inflation, pressure stabilization, test and exhaust;
step 3, the leak detector 2 (#A) judges that the leukocyte filter 3 corresponding to V4/V5/V6 has no leakage if the pressure value is stable; if the pressure value continuously drops, the leak detector 2 (#A) circularly detects three times according to the sequence of (1) V4 on, V5/V6 off, (2) V5 on, V4/V6 off, (3) V6 on, V4/V5 off (the actions of inflating, stabilizing the pressure, testing and exhausting are performed), and displays the detection result of the leukocyte filter 3 corresponding to V4/V5/V6;
step 4, simultaneously with step 3, the leak detector 2 (#B) judges that the leukocyte filter 3 corresponding to V10/V11/V12 has no leakage if the pressure value is stable; if the pressure value continuously drops, the leak detector 2 (#B) circularly detects three times (performing the actions of inflation, pressure stabilization, test and exhaust) according to the sequence of (1) V10 on, V11/V12 off, (2) V11 on, V10/V12 off, (3) V12 on, V10/V11 off, and displays the detection result of the leukocyte filter 3 corresponding to V10/V11/V12;
and 5, taking down the leukocyte filter 3 from the operation station II after detection is completed, and placing the leukocyte filter according to classification of good products and defective products.
In the embodiment, as shown in fig. 3, the operation steps of the operation station i and the operation step ii are alternately performed, one operation station detects, the other operation station prepares materials, the two leak detectors 2 are basically in a working state in the whole process, and an operator can work at the two operation stations, so that the use efficiency of the instrument is improved, and the labor cost is reduced.
It is apparent that the above examples of the present utility model are merely illustrative of the present utility model and are not limiting of the embodiments of the present utility model. Other obvious variations or modifications which are extended by the spirit of the present utility model are within the scope of the present utility model.
Claims (10)
1. The utility model provides a leucocyte filter gas tightness batch detection system, its characterized in that includes by outside air supply (1) and the leak hunting appearance (2) of pipeline intercommunication, leak hunting appearance (2) can with a plurality of leucocyte filters (3) that wait to detect intercommunication, leak hunting appearance (2) and every all be provided with stop valve (4) between leucocyte filters (3).
2. The leukocyte filter air-tightness batch detection system according to claim 1, characterized in that a pressure regulating valve (5) is arranged between the external air source (1) and the leak detector (2).
3. The leukocyte filter air-tightness batch detection system according to claim 1, further comprising an alarm device (6), wherein a pressure sensor of the leak detector (2) is used as a signal source of the alarm device (6).
4. The leukocyte filter air-tightness batch detection system according to claim 1, characterized in that the leukocyte filter (3) adopts a group detection mode.
5. The batch detection system for the tightness of the leukocyte filters according to claim 4, wherein the stop valves (4) are divided into two groups, the two groups of the stop valves (4) have detection states and stock states which are alternately switched, at least one of the stop valves (4) in the detection states is opened, and the stop valves (4) in the stock states are all closed.
6. The system according to claim 5, characterized in that the shut-off valve (4) in the detection state is fully or only one open.
7. The system for batch detection of the tightness of leukocyte filters according to claim 5, characterized in that the number of two sets of said stop valves (4) is three each.
8. The batch detection system for the air tightness of the leukocyte filters according to any one of claims 5 to 7, wherein at least two leak detectors (2) are connected in parallel with the external air source (1), and the stop valves (4) corresponding to the leak detectors (2) are divided into two groups, namely a detection state and a stock state; all the leukocyte filters (3) are divided into two groups according to the states of the corresponding stop valves (4) and are respectively arranged at two operation stations.
9. The system for batch detection of the tightness of the leukocyte filters according to claim 1, characterized in that said shut-off valve (4) employs a solenoid valve.
10. The leukocyte filter air-tightness batch detection system according to claim 1, further comprising:
a workpiece jig (7) for placing the leukocyte filter (3);
a detection pipe orifice (8) which is connected and matched with the first connecting pipe (301) of the leukocyte filter (3) and is communicated with the stop valve (4);
-a plug (9) for plugging a second connection tube (302) of the leukocyte-filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149462.0U CN220018862U (en) | 2023-05-15 | 2023-05-15 | Air tightness batch detection system for leukocyte filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149462.0U CN220018862U (en) | 2023-05-15 | 2023-05-15 | Air tightness batch detection system for leukocyte filter |
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| Publication Number | Publication Date |
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| CN220018862U true CN220018862U (en) | 2023-11-14 |
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| CN202321149462.0U Active CN220018862U (en) | 2023-05-15 | 2023-05-15 | Air tightness batch detection system for leukocyte filter |
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- 2023-05-15 CN CN202321149462.0U patent/CN220018862U/en active Active
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