CN104225692A - Waste liquid negative pressure collection device - Google Patents
Waste liquid negative pressure collection device Download PDFInfo
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- CN104225692A CN104225692A CN201410494899.7A CN201410494899A CN104225692A CN 104225692 A CN104225692 A CN 104225692A CN 201410494899 A CN201410494899 A CN 201410494899A CN 104225692 A CN104225692 A CN 104225692A
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- waste liquid
- negative pressure
- drainage bottle
- drainage
- collecting device
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Abstract
The invention relates to a waste liquid negative pressure collection device, which comprises one or a plurality of drainage bottles, drainage bags and drainage caps, wherein each drainage bag is positioned in the corresponding drainage bottle, each drainage cover is used for sealing the corresponding drainage bottle, and is provided with a serial connecting opening, a stopper of the serial connecting opening, a suction opening, a stopper of the suction opening and a vacuum suction part, the top part of each vacuum suction part is sealed, the interior of each vacuum suction part is provided with an inclined hole and a vertical hole, the lower part of each vertical hole is connected with a mounting bucket, the interior of each mounting bucket is provided with a water stop filtering element which expands when touching water, the upper part of each drainage bottle is provided with a boss, each boss is provided with an angular joint jack and a horizontal hole, each horizontal hole is connected with the corresponding angular joint jack, and is aligned with the corresponding inclined hole, each angular joint jack is inserted into an angular joint, and is connected with a negative pressure gage, and the negative pressure gage is connected with a negative pressure source. The device has the advantages that the workload of medical staff is reduced, the frequent replacement of the drainage bottles is avoided, and the collection efficiency is improved; the reflux of waste liquid caused by false operation is prevented; the sample collection is safe and reliable, and the simplicity and high-efficiency effects are realized, and the convenience and rapidity in use are realized.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to the waste liquid negative pressure collecting device used in a kind of medical procedure, particularly relate to one and can prevent waste liquid from flowing backwards and not needing frequently to change waste liquid bottle, simultaneously easy to operate waste liquid negative pressure collecting device.
Background technology
A large amount of waste liquids, sputum and hydrops etc. can be produced in operation or other repair process.In order to prevent these waste liquids, sputum and hydrops etc. from causing secondary pollution, must collect these waste liquids, sputum and hydrops etc.At present, be all the negative pressure source utilizing operating room usually, connect the process of waste liquid negative pressure collecting device and collect these waste liquids, sputum and hydrops.
But, negative pressure collecting device of the prior art, in use there will be following problem: once connection tube wrong in 1, performing the operation, the waste liquid collected in waste liquid bottle just easily flows back to the places such as operation point, thus causes superinfection because of the effect of negative pressure.2, waste liquid collecting bag is collected and has been expired rear easily causing and stop collecting or the outer spill and leakage of waste liquid wall, therefore must change receiving flask, thus make operation be forced to stop.3, in operation, need often to change collecting bag, add the workload of medical personnel on the one hand, increase operating time on the other hand, extend the painful time of patient.When 4, waste liquid being chemically examined, need manually to topple over operation, easily make personnel infect.5. the pipeline of gathering-device is in use easily wound around, and makes operation very inconvenient.
Therefore, in medical industry, at present in the urgent need to a kind of new waste liquid negative pressure collecting device that can overcome above-mentioned shortcoming of the prior art.
Summary of the invention
The present invention is intended to the above-mentioned shortcoming overcoming prior art, provides a kind of waste liquid negative pressure collecting device, and it can prevent waste liquid from flowing backwards under suction function on the one hand, thus can prevent secondary pollution; Can avoid in use frequently changing receiving flask on the other hand, thus the workload of medical personnel can be reduced, increase work efficiency, reduce patient suffering's time; In addition, it can also avoid pipeline to be wound around, and operation is very easy.
To achieve these goals, the invention provides following technical scheme: a kind of waste liquid negative pressure collecting device, it comprises one or more drainage bottle, be arranged in the drain lid of drainage bottle described in the drainage bag of described drainage bottle and capping, described drain covers the series connection mouth blocking being provided with series connection mouth and can connecting mouth described in shutoff, suction inlet and can the suction inlet blocking of suction inlet described in shutoff, it is characterized in that, described drain covers and is also provided with vacuum sucting, the top of described vacuum sucting is shut, and the upright opening being provided with inclined hole in described vacuum sucting and communicating with described inclined hole, be communicated with below described upright opening and bucket is installed, water-swellable stop type water sealing filter element is installed in described installation bucket, the upper lateral part of described drainage bottle is provided with boss, the lateral aperture described boss being provided with angle-style connector receptacle and being communicated with described angle-style connector receptacle, and the inclined hole of the vacuum sucting of described lateral aperture and described drain lid aligns, angle-style joint is inserted in described angle-style connector receptacle, and described angle-style joint is connected with vacuum table, described vacuum table is connected with negative pressure source.
Wherein, described waste liquid negative pressure collecting device comprises stent car further, and described stent car is provided with multiple hanging groove, and the top of described stent car arranges described vacuum table, bottom is provided with universal wheel, the boss of described drainage bottle is also provided with the hook cooperatively interacted with described hanging groove.
Further, described drain covers and is also provided with two handles symmetrically, and the lower limb of described handle is provided with the groove with the mating shapes pointing tripe.
Further, the bottom of the internal cavities of described drainage bottle is oval bottom surface.
Again further, the sidewall of the internal cavities of described drainage bottle and bottom surface are provided with reinforcement.
Compared with waste liquid negative pressure collecting device of the prior art, waste liquid negative pressure collecting device of the present invention has following Advantageous Effects:
The waste liquid that 1, can effectively prevent from causing due to maloperation by arranging water-swellable stop type water sealing filter element flows backwards, thus can prevent waste reflux from arriving the ground such as operation point, and then thoroughly prevents the generation of secondary pollution.
2, can avoid frequently changing drainage bottle and drainage bag at operation process by the series connection of multiple drainage bottle, thus reduce the working strength of medical personnel, and not need to stop operation, thus increase work efficiency, reduce operating time, reduce the misery of patient.
3, by can personnel rotate stent car can prevent pipeline winding in use, thus do not worry in operation pipeline be wound around problem, contribute to medical personnel relieved, use easily.
4, contribute to preventing waste liquid from flowing out by various blocking, avoid the outflow of waste liquid in drainage bottle transport and transfer process, thus avoid polluting.
5, as required, the automatic discharge of waste liquid can be realized, not need manually to topple over waste liquid, thus prevent human contact's waste liquid, and then avoid infection.
Accompanying drawing explanation
Fig. 1 is the schematic schematic diagram of waste liquid negative pressure collecting device of the present invention.
Fig. 2 is the detailed maps of the drain lid of waste liquid negative pressure collecting device of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 2.
Fig. 5 is the longitudinal sectional view of the drainage bottle of waste liquid negative pressure collecting device of the present invention.
Fig. 6 is the top view of the drainage bottle of waste liquid negative pressure collecting device of the present invention.
Fig. 7 is the schematic diagram of the stent car of waste liquid negative pressure collecting device of the present invention.
Wherein, 1, drainage bottle; 2, drainage bag; 3, drain lid; 4, water-swellable formula sealing filter element; 5, series connection mouth; 6, suction inlet; 7, mouth of connecting blocks; 8, suction inlet blocking; 9, handle; 10, vacuum sucting; 11, inclined hole; 12, upright opening; 13, bucket is installed; 14, boss; 15, angle-style connector receptacle; 16, lateral aperture; 17, link up with; 18, stent car; 19, hanging groove; 20, vacuum table; 21, universal wheel.
Detailed description of the invention
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing, the content of detailed description of the invention is not as the restriction to protection scope of the present invention.
The present invention relates to a kind of waste liquid negative pressure collecting device, it can prevent waste liquid from flowing backwards under suction function, thus can prevent secondary pollution; And can avoid in use frequently changing collecting bag, thus the workload of medical personnel can be reduced, increase work efficiency, reduce patient suffering's time.In addition, it can also avoid pipeline to be wound around in operation, such that operation is very easy.
Fig. 1 shows the schematic schematic diagram of waste liquid negative pressure collecting device of the present invention.As shown in Figure 1, waste liquid negative pressure collecting device of the present invention comprises one or more drainage bottle 1.A drainage bag 2 is provided with in each described drainage bottle 1.Described drainage bag 2 can be the soft bag of unlike material or hard bag.When described drainage bag 2 is hard bags, guarantee that described drainage bag 2 is less than the internal cavities of described drainage bottle 1, thus guarantee that it can be contained in described drainage bottle 1.When described drainage bag 2 is soft bags, when filling waste liquid, it can expand, thus fills up the internal cavities of described drainage bottle 1.Described drainage bottle 1 is can be reusable, and it is mainly used to be fixed described drainage bag 2 and protect, and prevents described drainage bag 2 from toppling over, thus prevents leakage.By arranging drainage bag 2 in drainage bottle 1, the drainage bottle 1 making price more expensive does not directly contact waste liquid, and therefore it is can be reusable, thus reduces cost.After have collected waste liquid, only need low-cost disposable drainage bag 2 to take out.In addition, each described drainage bottle 1 is provided with a drain lid 3.By described drain lid 3 is covered on described drainage bottle 1, such as by screwed on the opening of described drainage bottle 1, make between described drainage bag 2 and described drain lid 3 formed an enclosed space.Like this, be convenient to by negative pressure, waste liquid is drawn in described drainage bag 2, thus realize the collection of waste liquid.
Fig. 2 shows the detailed maps of the drain lid of waste liquid negative pressure collecting device of the present invention.As shown in Figure 2, described drain lid 3 is provided with series connection mouth 5 and the series connection mouth blocking 7 of mouth 5 of can connecting described in shutoff, suction inlet 6 and can the suction inlet blocking 8 of suction inlet 6 described in shutoff.As shown in Figure 4, described series connection mouth 5 runs through described drain lid 3, and described suction inlet 6 also runs through described drain lid 3.In use, medical personnel pre-estimate the amount that can produce waste liquid according to surgery situation, thus determine to need several drainage bottle.If a drainage bottle just can meet the demand of collecting waste liquid, so block described series connection mouth 5 with described series connection mouth blocking 7, realize the sealing of described series connection mouth 5, prevent its leakage and gas leakage.If multiple drainage bottle can meet the demand of collecting waste liquid, so in the series connection mouth 5 of each described drainage bottle 1, insert series connection joint, and tandem tube is connected on described series connection joint, thus realize the series connection of multiple drainage bottle 1.Due to the series connection of multiple drainage bottle can be realized, like this, in operation process, when a drainage bottle can not meet the demand of collecting waste liquid, multiple drainage bottle can be cascaded, thus the continuous collection of waste liquid can be realized.Like this, do not need to change drainage bottle in operation process, carrying out continuously of operation can be realized.Reduce the workload that medical personnel change drainage bottle on the one hand, decrease labor intensity; On the other hand operation can be carried out continuously, reduce operating time, increase work efficiency, reduce the painful time of patient.Meanwhile, at collection waste liquid constantly, insert suction attachment in described suction inlet 6, and described suction attachment is connected with the inhaler connection tube of being come by patient end, thus the waste liquid of patient can be sucked.After operation terminates, or after waste collection terminates, pull out described suction attachment, and block described suction inlet 6 with described suction inlet blocking 8, realize the sealing of described suction inlet 6, prevent waste liquid from flowing out from described suction inlet 6, thus the outflow of waste liquid in transport or processing procedure can be avoided, and then avoid secondary pollution, or personnel are infected.
In addition, as an important inventive point place of waste liquid negative pressure collecting device of the present invention, described drain lid 3 is also provided with vacuum sucting 10.Different with suction inlet 6 from described series connection mouth 5, as shown in Figure 3, the top of described vacuum sucting 10 is shut, thus can prevent gas or waste liquid etc. from spilling from the top of described vacuum sucting 10.Meanwhile, inclined hole 11 is provided with in described vacuum sucting 10 and the upright opening 12 that communicates with described inclined hole 11.Be communicated with below described upright opening 12 and bucket 13 is installed.Water-swellable stop type water sealing filter element 4 is installed in described installation bucket 13.Under normal circumstances, described water-swellable stop type water sealing filter element 4 does not fill up described installation bucket 13, thus makes the gas in drainage bottle 1 can be drawn described drainage bottle 1 by described installation bucket 13, upright opening 12 and inclined hole 11 etc.Described water-swellable stop type water sealing filter element 4 is made up of water-swellable glue.Have much this water-swellable glue in the market, this water-swellable glue can expand after chance water, thus described installation bucket 12 can be filled full, and block described upright opening 12, anti-sealing passes therethrough, and then arrives the object of sealing.Due to the existence of sealing filter element 4, even if in use connected pipeline wrong, waste liquid also can not flow backwards.This is because: when the waste liquid in drainage bag prepares to flow backwards under suction function, first waste liquid contacts sealing filter element 4, described sealing filter element 4 undergoes rapid expansion after touching waste liquid, thus described upright opening 12 is shut, and then can prevent waste liquid from being flow backwards by upright opening 12, inclined hole 11 etc., thus ensure that the safety of operation point.
Fig. 5 shows the longitudinal sectional view of the drainage bottle of waste liquid negative pressure collecting device of the present invention.Fig. 6 shows the top view of the drainage bottle of waste liquid negative pressure collecting device of the present invention.As illustrated in Figures 5 and 6, the upper lateral part of described drainage bottle 1 is provided with boss 14.The lateral aperture 16 described boss 14 being provided with angle-style connector receptacle 15 and being communicated with described angle-style connector receptacle 15.When covering on described drainage bottle 1 by described drain lid 3, such as, by when screwed is on the bottleneck of described drainage bottle 1, described lateral aperture 16 aligns with the inclined hole 11 of the vacuum sucting 10 of described drain lid 3.In use, in described angle-style connector receptacle 15, insert angle-style joint, and described angle-style joint is connected with vacuum table 20 by pipeline etc.Described vacuum table 20 is connected with negative pressure source by pipeline.Like this, when needs carry out waste collection, open described vacuum table 20, negative pressure can be formed by described angle-style joint, lateral aperture 16, inclined hole 11, upright opening 12 and sealing filter element 4 in described drainage bottle 1 under the effect of described negative pressure source, thus waste liquid is drawn into by described suction inlet 6 grade in the drainage bag 2 described drainage bottle 1 from patient there, realize the collection of waste liquid.
In the present invention, described drainage bottle 1 can have various shape.Preferably, the bottom of the internal cavities of described drainage bottle 1 is oval bottom surface, thus makes it be convenient to support soft bag.In addition, as illustrated in Figures 5 and 6, the sidewall of the internal cavities of described drainage bottle and bottom surface are provided with multiple reinforcement.By arranging described reinforcement, the intensity of described drainage bottle can be improved on the one hand, can provide support for described drainage bag and protect further on the other hand.
In addition, in order to prevent the various pipelines of described waste liquid negative pressure collecting device to be mutually wound around in operation, being convenient to medical personnel and operating, in the present invention, described waste liquid negative pressure collecting device comprises stent car 18 further.Fig. 7 shows the schematic diagram of the stent car of waste liquid negative pressure collecting device of the present invention.As shown in Figure 7, described stent car 18 is provided with multiple hanging groove 19.Meanwhile, the boss 14 of described drainage bottle 1 is also provided with the hook 17 cooperatively interacted with described hanging groove 19.In use, by described hook 17, the described drainage bottle 1 of requirement is suspended on described stent car 18 in advance.Described vacuum table 20 is arranged on the top of described stent car 18.Meanwhile, the bottom of described stent car 18 is provided with universal wheel 21, such as three universal wheels 21.By arranging described universal wheel 21, making to be convenient in operation process, freely move described stent car 18, and then the entanglement of various pipeline can be prevented, making medical personnel can carry out various operation relievedly.
In addition, in the present invention, preferably, described drain lid 3 is also provided with two handles 9 symmetrically.By described handle 9, be convenient to described drain lid 3 to be sealed on described drainage bottle 1; Further, after described drain lid 3 is sealed on described drainage bottle 1, be convenient to by described handle 9, drainage bottle 1 is suspended on described stent car 18, or be convenient to carrying, mobile described drainage bottle 1.In addition, in the present invention, more preferably, the lower limb of described handle 9 is provided with the groove with the mating shapes pointing tripe, thus is convenient to medical personnel and holds described handle 9.
When using waste liquid negative pressure collecting device of the present invention to carry out waste collection, medical personnel estimate issuable waste liquid amount in advance, and determine the number of the drainage bottle needing to use according to issuable waste liquid amount.In each drainage bottle, be respectively charged into drainage bag, and drain cap seal got lodged on the opening of each drainage bottle.Then, series connection joint is inserted in the series connection mouth of the drain lid of each drainage bottle, and by described series connection joint and pipeline, required each drainage bottle is together in series.Then, suction attachment is inserted in the suction inlet of the drain lid of first drainage bottle in the drainage bottle of multiple series connection, and described suction attachment is connected with the inhaler connection tube of patient by pipeline, the blocking of the suction inlet suction inlet of the drain lid of other drainage bottle is blocked simultaneously.Then, in the angle-style connector receptacle of each drainage bottle, insert angle-style joint, described angle-style joint is connected with vacuum table by pipeline, and vacuum table is connected with negative pressure source by pipeline.After everything in readiness, each described drainage bottle is suspended on described stent car by hook, and open the switch of negative pressure source, regulate negative pressure value by described vacuum table, thus in each described drainage bottle, form negative pressure, in the drainage bag that waste liquid is entered in first drainage bottle under suction function, after the drainage bag in first drainage bottle is filled, enter in the drainage bag in second drainage bottle by series connection mouth, by that analogy, until operation terminates or waste collection terminates.
Adopt waste liquid negative pressure collecting device of the present invention, owing to being provided with water-swellable stop type water sealing filter element in the hole be communicated with negative pressure source, therefore can effectively prevent the waste liquid caused due to maloperation from flowing backwards, thus can prevent waste reflux from arriving the ground such as operation point, and then thoroughly prevent the generation of secondary pollution.In addition, drain due to drainage bottle covers and is provided with series connection mouth, therefore the series connection of multiple drainage bottle can be realized, can avoid frequently changing drainage bottle and drainage bag at operation process by the series connection of multiple drainage bottle, thus reduce the working strength of medical personnel, and do not need to stop operation, thus increase work efficiency, reduce operating time, reduce the misery of patient.Moreover, because drainage bottle to be all arranged on stent car and stent car is free to rotate and mobile, when operating, personnel just can prevent pipeline winding in use by rotating and moving described stent car, thus do not worry in operation pipeline be wound around problem, contribute to medical personnel relieved, use easily.Such as, and by various blocking, mouth blocking of connecting, suction inlet blocking, contribute to preventing waste liquid from flowing out, avoid the outflow of waste liquid in transportation, thus avoid polluting.Finally, because drainage bottle only plays support to drainage bag and protective effect, itself does not contact waste liquid, and therefore drainage bottle is reusable, and more cheap drainage bag is then disposable, thus can reduce costs; Further, if necessary, sealing filter element can be removed from described installation bucket, thus the automatic discharge of waste liquid can be realized under the effect of negative pressure, not need manually to topple over waste liquid, thus avoid human contact's waste liquid, and then avoid infection.
The content of detailed description of the invention is understood for the ease of those skilled in the art and uses the present invention and describe, and does not form restriction the present invention being protected to content.Those skilled in the art, after having read content of the present invention, can carry out suitable amendment to the present invention.Protection content of the present invention is as the criterion with the content of claim.When not departing from flesh and blood and the protection domain of claim, the various amendments carried out the present invention, change and replacement etc. are all within protection scope of the present invention.
Claims (5)
1. a waste liquid negative pressure collecting device, it comprises one or more drainage bottle (1), be arranged in the drain lid (3) of drainage bottle (1) described in the drainage bag (2) of described drainage bottle (1) and capping, described drain lid (3) is provided with series connection mouth (5) and series connection mouth blocking (7) of mouth (5) of can connecting described in shutoff, suction inlet (6) and can suction inlet blocking (8) of suction inlet (6) described in shutoff, it is characterized in that, described drain lid (3) is also provided with vacuum sucting (10), the top of described vacuum sucting (10) is shut, and the upright opening (12) being provided with inclined hole (11) in described vacuum sucting (10) and communicating with described inclined hole (11), be communicated with below described upright opening (12) and bucket (13) is installed, in described installation bucket (13), water-swellable stop type water sealing filter element (4) is installed, the upper lateral part of described drainage bottle (1) is provided with boss (14), the lateral aperture (16) described boss (14) being provided with angle-style connector receptacle (15) and being communicated with described angle-style connector receptacle (15), and described lateral aperture (16) aligns with the inclined hole (11) of the vacuum sucting (10) of described drain lid (3), angle-style joint is inserted in described angle-style connector receptacle (15), and described angle-style joint is connected with vacuum table (20), described vacuum table (20) is connected with negative pressure source.
2. waste liquid negative pressure collecting device as claimed in claim 1, it is characterized in that, this waste liquid negative pressure collecting device comprises stent car (18) further, described stent car (18) is provided with multiple hanging groove (19), and the top of described stent car (18) arranges described vacuum table (20), bottom is provided with universal wheel (21), the boss (14) of described drainage bottle (1) is also provided with the hook (17) cooperatively interacted with described hanging groove (19).
3. waste liquid negative pressure collecting device as claimed in claim 1, it is characterized in that, described drain lid (3) is also provided with two handles (9) symmetrically, and the lower limb of described handle (9) is provided with the groove with the mating shapes pointing tripe.
4. waste liquid negative pressure collecting device as claimed in claim 1, it is characterized in that, the bottom of the internal cavities of described drainage bottle (1) is oval bottom surface.
5. waste liquid negative pressure collecting device as claimed in claim 4, is characterized in that, the sidewall of the internal cavities of described drainage bottle (1) and bottom surface are provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494899.7A CN104225692A (en) | 2014-09-25 | 2014-09-25 | Waste liquid negative pressure collection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410494899.7A CN104225692A (en) | 2014-09-25 | 2014-09-25 | Waste liquid negative pressure collection device |
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| CN104225692A true CN104225692A (en) | 2014-12-24 |
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| CN201410494899.7A Pending CN104225692A (en) | 2014-09-25 | 2014-09-25 | Waste liquid negative pressure collection device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581790A (en) * | 2016-12-30 | 2017-04-26 | 域鑫科技（惠州）有限公司 | Medical waste liquid collection apparatus with alarm function |
| CN107651346A (en) * | 2017-11-08 | 2018-02-02 | 张慎勇 | Medical vacuum waste liquid collection vessel plug-in headkerchief |
| CN107714188A (en) * | 2017-09-26 | 2018-02-23 | 中国人民解放军总医院 | A kind of operation waste collecting device |
| CN108853616A (en) * | 2018-06-25 | 2018-11-23 | 河南驼人贝斯特医疗器械有限公司 | The negative pressure drainage device that achievable waste liquid solidifies at any time |
| CN110432974A (en) * | 2019-07-04 | 2019-11-12 | 中国人民解放军总医院 | Waste collecting device is used in a kind of operation |
| CN110680968A (en) * | 2019-10-28 | 2020-01-14 | 温州市中西医结合医院 | Novel negative pressure drainage bottle that is convenient for change prevents suck-back device |
| CN111921023A (en) * | 2020-08-14 | 2020-11-13 | 辽宁省肿瘤医院 | Suction device for abdominal surgery |
| CN112618046A (en) * | 2021-01-06 | 2021-04-09 | 王桂玲 | Anti-reflux medical waste liquid recovery device based on negative pressure suction structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106581790A (en) * | 2016-12-30 | 2017-04-26 | 域鑫科技（惠州）有限公司 | Medical waste liquid collection apparatus with alarm function |
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| CN110432974A (en) * | 2019-07-04 | 2019-11-12 | 中国人民解放军总医院 | Waste collecting device is used in a kind of operation |
| CN110680968A (en) * | 2019-10-28 | 2020-01-14 | 温州市中西医结合医院 | Novel negative pressure drainage bottle that is convenient for change prevents suck-back device |
| CN111921023A (en) * | 2020-08-14 | 2020-11-13 | 辽宁省肿瘤医院 | Suction device for abdominal surgery |
| CN112618046A (en) * | 2021-01-06 | 2021-04-09 | 王桂玲 | Anti-reflux medical waste liquid recovery device based on negative pressure suction structure |
| CN112618046B (en) * | 2021-01-06 | 2022-05-10 | 山东熙诺医疗科技有限公司 | Anti-reflux medical waste liquid recovery device based on negative pressure suction structure |
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Application publication date: 20141224 |