CN103285432A - Backflow-prevention anti-blocking drainage device with large suction amount - Google Patents
Backflow-prevention anti-blocking drainage device with large suction amount Download PDFInfo
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- CN103285432A CN103285432A CN 201210042520 CN201210042520A CN103285432A CN 103285432 A CN103285432 A CN 103285432A CN 201210042520 CN201210042520 CN 201210042520 CN 201210042520 A CN201210042520 A CN 201210042520A CN 103285432 A CN103285432 A CN 103285432A
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Abstract
The invention relates to a backflow-prevention anti-blocking drainage device with a large suction amount. The drainage device comprises a liquid inlet valve body (1), a liquid inlet valve core (2), a liquid inlet valve spring (3), an upper valve cover and a lower valve cover (4 and 10), a needle cylinder piston (5), a piston rod (6), a liquid discharging valve body (7), a liquid discharging valve core (8) and a liquid discharging spring (9), wherein the liquid inlet valve core (2) only allowing a liquid to flow downwards is arranged in the liquid inlet valve body (1), and an insertion hole for a liquid inlet pipe (11) is formed in the upper left part of the liquid inlet valve body (1); the liquid discharging valve core (8) only allowing the liquid to flow leftwards is arranged in the liquid discharging valve body (7); and an insertion hole of a liquid discharging pipe (13) and a duct allowing the needle cylinder piston (5) to move leftwards and rightwards are formed in the left side and in the upper right part of the liquid discharging valve body (7) respectively. The needle cylinder piston (5) moves leftwards and rightwards continuously, so that the liquid can be drained and discharged to a container. The backflow-prevention anti-blocking drainage device with a large suction amount has the advantages as follows: smooth drainage is realized, the drainage amount is large, retrograde infection of the liquid is prevented, blocking is avoided, and continuous drainage can be realized.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically refer to a kind of anti-adverse current blockage resisting drainage system of big aspiration.
Background technology
Aspect upper gastrointestinal lesion examining, gastroscopy is used comparatively extensive.To judging the degree of chronic gastritis and having or not of intestinal epithelial metaplasia, differentiate the good, pernicious of ulcer pathological changes, aspects such as the cause of disease of judgement upper gastrointestinal hemorrhage and early discovery gastric cancer, gastroscopy has unique effect.In order clearly to see mucomembranous surface, the organization factors at positions such as digestive tract, stomach, it is clean and tidy to guarantee to be examined the position, and there do not have food also not have clot to be remaining.But the patient who is detained for the gastric chyme due to the pyloric obstruction etc. because the complete delivery ratio of gastric food residual difficulty needs the artificial negative pressure drainage technology of using to extract gastric food out, otherwise can influence doctor's observation, makes the gastroscope diagnosis mistake occur.For another example, a series of diseases such as tuberculous pleuritis and lung tissue tumor often cause hydrothorax, when hydrops surpasses that a certain amount of compressing lung tissue causes the lung tissue compression and when producing dyspnea, needs the suction hydrothorax alleviate pressure symptom.
The body fluid extraction mode of using clinically mainly contains two kinds now: a kind of is to adopt disposable spring depression drainage device, open " scavenge port " flap at drainage device top during use earlier, make it to be compressed to bottom line with palm concora crush drainage device, spring in the container is compressed simultaneously, close flap then immediately, this moment, negative pressure formed, and can realize negative pressure drainage; When complete concora crush drainage device, peak suction can reach 70mmHg.But if meet drain liquid thickness (as chyme, secretions, blood clot etc.), it is not enough that the negative pressure of this spring depression drainage device just seems, swimmingly the hydrops in the sucking-off patient body.Another kind is to realize by the syringe connection rubber tube of 20ml or 50ml, extracting a pipe back with syringe clamps rubber tube, takes off syringe drain liquid in the syringe is arranged in measuring cup or container, connecting rubber tube again aspirates, so the operation that separates repeatedly, connects has destroyed the seal of drainage system, has increased the chance of patient infection; Because the internal diameter of the nipple centre bore of syringe is very little, often blocked by gastric food debris or other various aggregates herein, need to remove obturator and just can continue to aspirate with syringe; The syringe capacity is little, extract often repeatedly, and it is aching and limp easily to cause operator's both hands, and each extraction amount is also limited; In cylinder piston pull process, the situation if finger skids etc. can make air or body fluid backflow to enter wound and causes retrograde infection, brings misery to the patient.
Summary of the invention
In order to overcome the problems referred to above that existing body fluid drainage way exists, the invention provides a kind of body fluid can reverse flow, the extraction amount greatly, can not stop up, the anti-adverse current blockage resisting drainage system of the big aspiration of sustainable continuous drain.
The technical solution adopted in the present invention is: the anti-adverse current blockage resisting drainage system that is made of a kind of big aspiration feed liquor spool, discharge opeing spool, feed liquor valve body, draining valve, feed liquor valve spring, tapping valve spring, last bottom flange, cylinder piston, piston rod, feed tube, discharging tube, bolt, it is characterized in that: be provided with the feed liquor spool that only allows body fluid to flow downward in the feed liquor valve body, the jack of feed tube is positioned at the upper left side of feed liquor valve body; Be provided with the discharge opeing spool that only allows body fluid to turn left mobile in the draining valve, the jack of discharging tube, the duct that supplies cylinder piston to move lay respectively at left side and the upper right side of draining valve.
Described feed liquor spool is provided with radial hole, and bonnet, is provided with centre bore.
Be inserted with feed tube in the upper left side jack of described feed liquor valve body, be inserted with discharging tube in the left side jack of described draining valve, be placed with the cylinder piston that is fixed on the piston rod in its top-right duct.
The diameter of described feed liquor valve body upper left side jack equates that with the external diameter of feed tube the diameter of described draining valve left side jack equates that with the external diameter of discharging tube its top-right channel diameter equates with the external diameter of cylinder piston.
In the such scheme, also comprise being used for connecting the following bolt of described draining valve and bottom flange for the last bolt that connects described feed liquor valve body, draining valve and bonnet.
Compared with prior art advantage of the present invention is:
(1) drain is unobstructed, can not stop up, and drainage effect is good, and body fluid extraction amount is big, can make body fluid rapidly drain to container, can realize constant drainage.
(2) situation if negative pressure deficiency or negative pressure suddenly disappear, body fluid can reverse inflow body in, effectively prevented the retrograde infection in the drain process.
(3) be easy to be grasped by medical personnel, simple to operate, can improve the medical treatment and nursing level of hospital.
(4) reduce because of drainage equipment function imperfection to the misery that the patient brings, alleviate the injury to patient.
Rapid increase along with China's population, the patient who causes internal organs aspect diseases such as stomach owing to reasons such as unhygienic diet, food-safety problems is more and more, the anti-adverse current blockage resisting drainage system of big aspiration of the present invention, obviously be better than existing similar medical apparatus and instruments in work efficiency with aspects such as cost performances, have higher added value and competitive advantage, application prospect is good.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Among the figure: 1. feed liquor valve body, 2. feed liquor spool, 3. feed liquor valve spring, 4. bonnet,, 5. cylinder piston, 6. piston rod, 7. draining valve, 8. discharge opeing spool, 9. tapping valve spring, 10. bottom flange, 11. feed tubes, bolt on 12., 13. discharging tubes, 14. times bolts.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is elaborated.
Accompanying drawing is an embodiment disclosed by the invention.The anti-adverse current blockage resisting drainage system of big aspiration of the present invention is made up of feed liquor valve body 1, feed liquor spool 2, feed liquor valve spring 3, bonnet, 4, cylinder piston 5, piston rod 6, draining valve 7, discharge opeing spool 8, tapping valve spring 9, bottom flange 10, feed tube 11, discharging tube 13 etc.Its structural feature is: be provided with the feed liquor spool 2 that only allows body fluid to flow downward in the feed liquor valve body 1, the jack of feed tube 11 is positioned at the upper left side of feed liquor valve body 1; Be provided with the discharge opeing spool 8 that only allows body fluid to turn left mobile in the draining valve 7, the jack of discharging tube 13 is positioned at the left side of draining valve 7, and the duct that supplies cylinder piston 5 to move is positioned at the upper right side of draining valve 7.
Bonnet, 4 is provided with centre bore c, and feed liquor spool 2 is provided with radial hole a and b, guarantees the smooth and easy feed liquor spool 2 that flows through of body fluid.
The feed tube 11 of near end inserts in the upper left side jack of feed liquor valve body 1, and the interior discharging tube 13 of left side jack that inserts draining valve 7 is positioned at body end far away, is used for giving off body fluid, and feed tube 11, discharging tube 13 can be continued to use the silica gel drainage tube that uses clinically at present.Cylinder piston 5 is fixed on the piston rod 6, and both put into draining valve 7 top-right ducts, and cylinder piston 5, piston rod 6 can be taken from the syringe of existing 20ml or 50ml.
The diameter of feed liquor valve body 1 upper left side jack equals the external diameter of feed tube 11, the diameter of draining valve 7 left side jacks equals the external diameter of discharging tube 13, its top-right channel diameter equates that with the external diameter of cylinder piston 5 concrete size is decided by to adopt 20ml or the syringe piston of 50ml.
Feed liquor valve body 1, draining valve 7 and bonnet, 4 are used bolt 12 and are tightened up and be connected, and draining valve 7 and bottom flange 10 usefulness bolt 14 down tighten up and are connected.
Feed liquor valve spring 3, the tapping valve spring 9 of the anti-adverse current blockage resisting drainage system of big aspiration of the present invention is to make feed liquor spool 2 and discharge opeing spool 8 proper resets, guarantee the body fluid folk prescription to flowing and element that can not reverse flow, they are installed in respectively in the groove of feed liquor spool 2, discharge opeing spool 8, and do not contact with body fluid, can avoid polluting.In order to make reliable, the energy loss when reducing body fluid and flowing of feed liquor spool 2,8 flexible movements of discharge opeing spool, the rigidity of feed liquor valve spring 3, tapping valve spring 9 should be as much as possible little, as long as overcome frictional resistance, gravity and the inertia force of spool.
The work process of the anti-adverse current blockage resisting drainage system of big aspiration of the present invention is: when making that with manpower pulling piston rod 6 cylinder piston 5 moves right, because it is big that the seal cavity volume becomes, make the B chamber in the feed liquor spool 2, the pressure at the place, D chambeies in the draining valve 7 reduce, be negative pressure state; Discharge opeing spool 8 is closed under the spring force effect of negative pressure and tapping valve spring 9, and the spring force of feed liquor spool 2 overcome frictions and feed liquor valve spring 3 moves down, and A, B two chambeies are connected; Body fluid flows into the B chamber through the radial hole a on the feed liquor spool 2 and b, and enters the D chamber by the centre bore c of bonnet, 4 by centre bore, the A chamber of feed tube 11, and seal cavity is full of, and finishes the imbibition process.When manpower promotion piston rod 6 makes cylinder piston 5 past moving left, because the seal cavity volume reduces, make the pressure at B chamber, place, D chamber become greatly; Feed liquor spool 2 moves under the spring force effect of body fluid pressure and feed liquor valve spring 3 and closes, and A, B two chambeies are obstructed; Discharge opeing spool 8 spring force of overcome friction and tapping valve spring 9 under the effect of body fluid pressure moves down, and D, E two chambeies are connected; The body fluid that is stored in B, place, D chamber flows into the E chamber of draining valve 7, is expelled to external plastic bag or vial by discharging tube 13, finishes the body fluid discharge process.Cylinder piston 5 constantly during move left and right, repeats said process in the duct.
The anti-adverse current blockage resisting drainage system of big aspiration of the present invention is when negative pressure occurring and suddenly disappear, as finger in the cylinder piston 5 pull processes skid, cylinder piston 5 is extracted in the duct, discharging tube 13 slippage in the jack, external plastic bag breakage or vial fragmentation etc., the feed liquor valve spring 3 of feed liquor spool 2 is upspring rapidly, make to move on the feed liquor spool 2 and seal valve port, can prevent that gas or body fluid from backflowing enters wound, reduce the probability of retrograde infection, can continue drain after the trouble shooting.Through-hole diameter on feed liquor spool 2, the bonnet, 4 is designed to the centre bore internal diameter greater than existing drainage tube, and it is unobstructed that body fluid is flowed, and improved the efficient of body fluid extraction.The present invention can graft in the constant drainage that realizes big extraction amount on the existing drainage system, has good popularization value.
Claims (5)
1. the anti-adverse current blockage resisting drainage system of a big aspiration, comprise feed liquor valve body (1), feed liquor spool (2), feed liquor valve spring (3), bonnet, (4), cylinder piston (5), piston rod (6), draining valve (7), discharge opeing spool (8), tapping valve spring (9), bottom flange (10), feed tube (11), discharging tube (13), it is characterized in that: be provided with the feed liquor spool (2) that only allows body fluid to flow downward in the described feed liquor valve body (1), the jack of feed tube (11) is positioned at the upper left side of feed liquor valve body (1); Be provided with the discharge opeing spool (8) that only allows body fluid to turn left mobile in the described draining valve (7), the jack of discharging tube (13) is positioned at the left side of draining valve (7), is positioned at the upper right side of draining valve (7) for the mobile duct of cylinder piston (5).
2. the anti-adverse current blockage resisting drainage system of big aspiration according to claim 1 is characterized in that: described feed liquor spool (2) is provided with radial hole (a) and (b), and described bonnet, (4) is provided with centre bore (c).
3. the anti-adverse current blockage resisting drainage system of big aspiration according to claim 1, it is characterized in that: be inserted with feed tube (11) in the upper left side jack of described feed liquor valve body (1), be inserted with discharging tube (13) in the left side jack of described draining valve (7), be placed with the cylinder piston (5) that is fixed on the piston rod (6) in its top-right duct.
4. the anti-adverse current blockage resisting drainage system of big aspiration according to claim 1, it is characterized in that: the diameter of described feed liquor valve body (1) upper left side jack equates with the external diameter of feed tube (11), the diameter of described draining valve (7) left side jack equates that with the external diameter of discharging tube (13) its top-right channel diameter equates with the external diameter of cylinder piston (5).
5. according to the anti-adverse current blockage resisting drainage system of the described big aspiration of the arbitrary claim of claim 1 to 4, its feature also comprises for the last bolt (12) that connects described feed liquor valve body (1), draining valve (7) and bonnet, (4), for connecting the following bolt (14) of described draining valve (7) with bottom flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042520.XA CN103285432B (en) | 2012-02-24 | 2012-02-24 | The counterflow-preventing blockage resisting drainage system of large aspiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210042520.XA CN103285432B (en) | 2012-02-24 | 2012-02-24 | The counterflow-preventing blockage resisting drainage system of large aspiration |
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| CN103285432A true CN103285432A (en) | 2013-09-11 |
| CN103285432B CN103285432B (en) | 2016-01-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310403A (en) * | 2016-08-19 | 2017-01-11 | 上海应用技术学院 | Pipe joint anti-blocking device for vacuum sealing drainage |
| CN107049339A (en) * | 2017-03-27 | 2017-08-18 | 防城港市中医医院 | A kind of accurate urine volume counter |
| CN109498860A (en) * | 2019-01-15 | 2019-03-22 | 王颖颖 | A kind of medical negative treatment flow diverter anti-backflow device |
| CN111714711A (en) * | 2020-06-15 | 2020-09-29 | 杭州市第三人民医院 | Bladder emptier |
| CN112545899A (en) * | 2020-12-26 | 2021-03-26 | 黑龙江省医院 | Quick nursing lung-heat-clearing sputum discharging device for respiratory medicine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2318962A (en) * | 1940-08-03 | 1943-05-11 | Arthur L Parker | Valve assembly |
| CN2436157Y (en) * | 2000-07-04 | 2001-06-27 | 吴宏 | Thoracic cavity sucker |
-
2012
- 2012-02-24 CN CN201210042520.XA patent/CN103285432B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310403A (en) * | 2016-08-19 | 2017-01-11 | 上海应用技术学院 | Pipe joint anti-blocking device for vacuum sealing drainage |
| CN107049339A (en) * | 2017-03-27 | 2017-08-18 | 防城港市中医医院 | A kind of accurate urine volume counter |
| CN107049339B (en) * | 2017-03-27 | 2023-05-26 | 防城港市中医医院 | Precise urine volume meter |
| CN109498860A (en) * | 2019-01-15 | 2019-03-22 | 王颖颖 | A kind of medical negative treatment flow diverter anti-backflow device |
| CN109498860B (en) * | 2019-01-15 | 2021-05-28 | 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） | Backflow preventing device for medical negative therapy drainage device |
| CN111714711A (en) * | 2020-06-15 | 2020-09-29 | 杭州市第三人民医院 | Bladder emptier |
| CN112545899A (en) * | 2020-12-26 | 2021-03-26 | 黑龙江省医院 | Quick nursing lung-heat-clearing sputum discharging device for respiratory medicine |
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| CN103285432B (en) | 2016-01-20 |
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Effective date of registration: 20210309 Address after: Room 407-2-6, building C, Tian'an Digital City, 588 Changwu South Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province 213000 Patentee after: CHANGZHOU XIAOGUO INFORMATION SERVICES Co.,Ltd. Address before: 213016 Changzhou University (Baiyun campus), Baiyun Road, Zhonglou District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU University |
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