CN103090050B - Liquid distributing valve and medical equipment with same - Google Patents
Liquid distributing valve and medical equipment with same Download PDFInfo
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- CN103090050B CN103090050B CN201110337561.7A CN201110337561A CN103090050B CN 103090050 B CN103090050 B CN 103090050B CN 201110337561 A CN201110337561 A CN 201110337561A CN 103090050 B CN103090050 B CN 103090050B
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Abstract
The invention is applicable to the technical field of medical equipment and discloses a liquid distributing valve and medical equipment with the same. The liquid distributing valve comprises a fixed plate and a movable plate which can rotate or move relative to the fixed plate. A sample quantifying passage is reserved on the movable plate. A sample collecting passage and a sample conveying passage which can be communicated with the sample quantifying passage respectively when the movable plate rotates to different positions are reserved on the fixed plate. A washing groove which is capable of feeding detergent is reserved on the fixed plate or the movable plate. The washing groove is arranged on an end face where the fixed plate is attached with the movable plate and located on the periphery of the sample conveying passage or/and the sample collecting passage. The medical equipment is provided with the liquid distributing valve. The liquid distributing valve is low in manufacturing cost and high in equipment reliability, has no washing dead angle, and avoids cross contamination.
Description
Technical field
The invention belongs to technical field of medical equipment, particularly relate to a kind of liquid separatnig valve and there are the medical equipment of this liquid separatnig valve.
Background technique
At present, liquid separatnig valve is as a kind of novel fluid measuring apparatus adopted in domestic and international Medical Instruments, and it can connect at one time and intercept multistage fluid sample, realizes the accurate quantification of sample and distributes efficiently.Current liquid separatnig valve is as a point blood valve, in measuring phase, blood valve is divided to need to be realized by continuous machinery action collection and the distribution of sample, action request divides blood valve must have excellent abrasive resistance, corrosion resistance and lower thermal expansion coefficient frequently, therefore divides blood valve usually to adopt stupalith to make.Existing point of blood valve has several form, but its principle is basically identical: valve block is divided into stator and moving plate, all adopt combined type runner, accurately intercept by the volume duct of determining on moving plate and measure fluid, having come sampling and sample distribution with the machinery action runner combination changed between stator and moving plate.And point blood valve change a position carry out runner switch time, the sample in stator and moving plate upper runner hole can be attached to valve block surface, and samples of these attachments are difficult to cleaning, and can pollute next sample.
The cleaning structure of existing point of blood valve mostly is duct formula.Duct formula structure main feature designs a large amount of duct on stator and moving plate, when moving plate rotates relative to stator, cleaning liquid in stator duct is cleaned inswept region, and when the duct on moving plate and stator turns to coincidence, the cleaning liquid in duct can be discharged.Cleaning structure is point blood valve of duct formula, and its drill way layout is complicated, and causes difficult processing, manufacture cost high; Drill way layout is unreasonable, can not clean the surface of valve block to greatest extent, there is cleaning dead angle, causes point blood valve to there is the cross-contamination issue of sample.In addition, of the prior art point of blood valve, also there is the defect of sealing effect difference in it, if improper use, can cause a point sepage between blood valve stator and moving plate, the normal use of impact point blood valve.Although there is scheme to avoid a point blood valve sepage by increasing seal ring, this solution increases a point blood valve arrangement complexity, the machinery action of stator and moving plate also can aggravate the wearing and tearing of seal ring, thus have impact on a point whole service life for blood valve.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of liquid separatnig valve and there are the medical equipment of this liquid separatnig valve, its liquid separatnig valve structure is simple, be convenient to processing, low cost of manufacture, cleaning tank design is ingenious, there is not cleaning dead angle, can clean the surface of valve block to greatest extent, avoid the problem producing cross pollution, equipment reliability is high.
Technological scheme of the present invention is: a kind of liquid separatnig valve, comprise stator and the moving plate that can rotate relative to described stator, described moving plate offers sample dosing channel, described stator offers the sample collection passage and sample transfer passage that can connect with described sample dosing channel respectively when moving plate turns to diverse location, on described stator or moving plate, offer the cleaning tank that can pass into cleaning solution, described cleaning tank is arranged on the end face that described stator and moving plate fit, and described cleaning tank is positioned at described sample transfer passage or/and the periphery of sample collection passage; When moving plate relative to stator rotate carry out passage bridge time, described cleaning tank can sweep the region at each passage place.
Preferably, described stator is provided with two, and described moving plate is provided with one, and described moving plate rotating clip is located between described two stators, and the bi-side that described two stators are relative fit with two end faces of moving plate respectively.
Particularly, described cleaning tank is opened on described stator, and described stator offers the feed pathway being communicated in described cleaning tank and liquid outlet channel.
More specifically, described two stators all offer feed pathway and the liquid outlet channel of the cleaning tank be communicated on this stator.
Or, described feed pathway is opened in wherein on a stator and the cleaning tank be communicated on this stator, described liquid outlet channel to be opened on another stator and the cleaning tank be communicated on this stator, described moving plate offers the series connection via hole for being communicated with the cleaning tank on described two stators.
Particularly, described cleaning tank surrounds or partly surrounds in described sample transfer passage and sample collection channels peripheral, and described cleaning tank is closed circular or is notched ring-type.
Preferably, described sample transfer passage offers at least two, described cleaning tank comprises and surrounds or partly surround in described sample transfer passage or/and the peripheral channel of sample collection passage and the region for peripheral channel being surrounded formation are divided at least two subregional divider passages, and described divider passages is positioned at described peripheral channel and surrounds the region of formation and be connected with described peripheral channel.
Particularly, described sample dosing channel is a corresponding sample collection passage and a sample transfer passage respectively, is positioned at samely is separated the zoning formed by divider passages corresponding to the sample collection passage of same sample dosing channel and sample transfer passage.
Particularly, the pressure in described cleaning tank is negative pressure.
Preferably, the distance between the edge of described cleaning tank and stator or moving plate is greater than 2mm; Distance between the edge of described cleaning tank and sample collection passage and sample transfer passage is greater than 2mm.
Particularly, described sample dosing channel offers at least two, described sample collection road is used for each sample dosing channel to connect to form passage chain, and the sample collection expanding channels being positioned at described passage chain one end, in sample, is positioned at the sample collection expanding channels of the described passage chain the other end in sample suction pump.
Present invention also offers a kind of medical equipment, there is above-mentioned liquid separatnig valve.
A kind of liquid separatnig valve provided by the invention and there are the medical equipment of this liquid separatnig valve, its liquid separatnig valve is positioned at described sample transfer passage or/and the cleaning tank of sample collection channels peripheral by offering, when moving plate relative to stator rotate carry out runner switch time, cleaning tank can the region at thorough inswept each passage place, with the surface that clean stator and moving plate are affixed, the surface of valve block can be cleaned to greatest extent, no matter sample toward which direction spreads, all can be intercepted by cleaning tank, thus control the contaminated area on liquid separatnig valve surface to greatest extent, avoid producing cleaning dead angle, stop the hidden danger of sample cross contamination, equipment reliability is high.And cleaning tank structure is simple, be convenient to processing, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is a kind of liquid separatnig valve that the embodiment of the present invention provides side-looking floor map when being in sampling work state;
Fig. 2 is a kind of liquid separatnig valve that the embodiment of the present invention provides side-looking floor map when being in sample presentation working state;
The side-looking floor map of Fig. 3 to be a kind of cleaning tank that the embodiment of the present invention provides be liquid separatnig valve of parallel-connection structure;
The side-looking floor map of Fig. 4 to be a kind of cleaning tank that the embodiment of the present invention provides be liquid separatnig valve of cascaded structure;
The floor map of Fig. 5 to be a kind of cleaning tank that the embodiment of the present invention provides be stator in the liquid separatnig valve of closed circular;
The floor map of Fig. 6 to be a kind of cleaning tank that the embodiment of the present invention provides be stator in the liquid separatnig valve of notched ring-type;
Fig. 7 is the floor map that a kind of cleaning tank that the embodiment of the present invention provides comprises stator in the liquid separatnig valve of divider passages;
Fig. 8 is the floor map of establishing stator in liquid separatnig valve jaggy in a kind of divider passages of providing of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As depicted in figs. 1 and 2, a kind of liquid separatnig valve that the embodiment of the present invention provides, can be used for the accurate quantification and the efficient allocation that realize fluid sample, and fluid sample can be blood sample etc., and correspondingly, above-mentioned liquid separatnig valve can be used as point blood valve etc.Above-mentioned liquid separatnig valve comprises stator 200 and can rotate or the moving plate 100 of movement relative to described stator 200, described moving plate 100 offers sample dosing channel 101, described stator 200 offers the sample collection passage 201 and sample transfer passage 202 that can connect with described sample dosing channel 101 respectively when moving plate 100 turns to diverse location.When stator 200 turns to suitable position to moving plate 100 relatively, as shown in Figure 1, liquid separatnig valve is in sampling work state, sample dosing channel 101 and sample collection passage 201 are connected, sample can suck sample dosing channel 101 by sample collection passage 201, sample dosing channel 101 can be offered multiple, interiorly at one time can intercept multistage fluid sample; When stator 200 turns to another suitable position to moving plate 100 relatively, as shown in Figure 2, liquid separatnig valve is in sample presentation working state, sample dosing channel 101 and sample transfer passage 202 conducting, sample now in sample dosing channel 101 can be transferred out by sample transfer passage 202, and particularly, the sample transfer passage 202 wherein on a stator 200 is connected with sample presentation pump 410, so that sample is exported from liquid separatnig valve, achieve the accurate quantification of sample and distribute efficiently.Additionally, also moving plate 100 can be slided and be attached on stator 200, also can be realized accurate quantification and the efficient allocation of fluid sample by mobile moving plate 100.
As shown in Fig. 1 ~ Fig. 5, on described stator 200 or moving plate 100, offer the cleaning tank 210 that can pass into cleaning solution, with reference to figure 1 and Fig. 2, heavy line in figure is cleaning tank 210, described cleaning tank 210 is arranged on the end face that described stator 200 and moving plate 100 fit, and described cleaning tank 210 is positioned at described sample transfer passage 202 or/and the periphery of sample collection passage 201.By cleaning tank 210 is arranged at sample transfer passage 202 or/and the periphery of sample collection passage 201, when moving plate 100 relative to stator 200 rotate carry out passage bridge time, cleaning tank 210 can the region at thorough inswept each passage place, with the surface that clean stator 200 and moving plate 100 are affixed, the surface of valve block can be cleaned to greatest extent, no matter sample toward which direction spreads, all can be intercepted by cleaning tank 210, thus control the contaminated area on liquid separatnig valve surface to greatest extent, avoid producing cleaning dead angle, stop the hidden danger of sample cross contamination, equipment reliability is high.And cleaning tank 210 structure is simple, be convenient to processing, low cost of manufacture.Cleaning way in sample transfer passage 202, sample collection passage 201 and sample dosing channel 101 for inject cleaning solution in each corresponding pipeline.
Preferably, in the present embodiment, described stator 200 is provided with two, described moving plate 100 is provided with one, described moving plate 100 rotating clip is located between described two stators 200, the bi-side that described two stators 200 are relative fit with two end faces of moving plate 100 respectively, and good sealing effect, structural reliability is high.Additionally, also only can arrange a stator 200 and a moving plate 100, it also can realize the function of separatory.Or, the quantity of stator 200 and moving plate 100 also can be set according to actual conditions, such as, three stators 200 and two moving plates, 100, three stators 200 and two moving plates 100 be set and can be superimposed setting, all belong to protection scope of the present invention.
Or as an alternative, two stators 200 can be one-body molded, by offering the containing groove for accommodating moving plate 100 thereon, moving plate 100 rotates and is arranged in containing groove, also belongs to protection scope of the present invention.
Particularly, as shown in Figure 1, Figure 2 with shown in Fig. 5, described cleaning tank 210 to be opened on described stator 200 and to be positioned in one side that described stator 200 and moving plate 100 be affixed, described stator 200 offers the feed pathway 220 being communicated in described cleaning tank 210 and liquid outlet channel 230, and cleaning solution flows into cleaning tank 210 from feed pathway 220 and flows out from liquid outlet channel 230.Like this, in the process rotated relative to stator 200 at moving plate 100, cleaning liquid can, constantly at cleaning tank 210 Inner eycle, realize rinsing action, is conducive to the effect improving cleaning, has stopped the hidden danger of sample cross contamination further.
Particularly, as shown in FIG. 1 to 3, described two stators 200 all offer feed pathway 220 and the liquid outlet channel 230 of the cleaning tank 210 be communicated on this stator 200.As shown in Figure 3, the cleaning tank 210 that the cleaning tank 210 left side stator 200 offered and the right stator 200 are offered adopts separate parallel-connection structure; The feed pathway 220 that left side stator 200 is offered is connected with the cleaning tank 210 on this stator 200 with liquid outlet channel 230, and the feed pathway 220 that the right stator 200 is offered is connected with the cleaning tank 210 on this stator 200 with liquid outlet channel 230.In Fig. 3, heavy line position is cleaning tank 210 and feed pathway 220, liquid outlet channel 230.Cleaning tank 210 on left and right two stators 200 can independently work, and cleaning efficiency is higher, and cleaning performance is also better, has further stopped the hidden danger of sample cross contamination.
Or, as the replacement scheme of above-mentioned parallel-connection structure, as shown in Figure 1, Figure 2 and Figure 4, described feed pathway 220 is opened in wherein on a stator 200 and the cleaning tank 210 be communicated on this stator 200, described liquid outlet channel 230 to be opened on another stator 200 and the cleaning tank 210 be communicated on this stator 200, described moving plate 100 offers the series connection via hole 240 for being communicated with the cleaning tank 210 on described two stators 200.Cleaning tank 210 on left side stator 200 is connected by the series connection via hole 240 be opened on moving plate 100 with the cleaning tank 210 on the right stator 200, thus forms in-line structure, and such design simplifies pipeline structure.In Fig. 4, heavy line position is cleaning tank 210, series connection via hole 240 and feed pathway 220, liquid outlet channel 230.In the present embodiment, feed pathway 220 is opened on the stator 200 on the left side, liquid outlet channel 230 is opened on the stator 200 on the right, cleaning solution flows into the cleaning tank 210 on left side stator 200 from the feed pathway 220 left side stator 200, then to be flow to the cleaning tank 210 on the stator 200 of the right by series connection via hole 240 from the cleaning tank 210 left side stator 200, finally flow out from the liquid outlet channel 230 the right stator 200 again, also can clean stator 200 and moving plate 100.
Particularly, as shown in Figure 1, Figure 2 with shown in Fig. 5, Fig. 6, described cleaning tank 210 surrounds or partly surrounds in described sample transfer passage 202 and sample collection passage 201 periphery, and described cleaning tank 210 is in closed circular or in notched ring-type.As shown in Figure 5, cleaning tank 210 is in closed circular, and the sample transfer passage 202 on stator 200 and sample collection passage 201 are all positioned at the region that cleaning tank 210 surrounds; Feed pathway 220 is all directly communicated with cleaning tank 210 with liquid outlet channel 230, cleaning tank 210 can be divided into two sections by feed pathway 220 and liquid outlet channel 230, the resistance of its two sections of cleaning tanks 210 is suitable, cleaning solution can flow from two sections of cleaning tanks 210 to liquid outlet channel 230 equably, is conducive to improving cleaning performance.
When moving plate 100 rotates relative to stator 200, cleaning tank 210 just can rinse the surface that stator 200 and moving plate 100 are affixed comprehensively, and cleaning performance is good, does not clean dead angle.Or, as shown in Figure 6, cleaning tank 210 can be notched ring-type, feed pathway 220 and liquid outlet channel 230 lay respectively at two ends or the vicinity, two ends of cleaning tank 210, the size of breach can be set to less, feed pathway 220 can near the starting point of cleaning tank 210 or starting point, and liquid outlet channel 230 can near the terminal of cleaning tank 210 or terminal, and feed pathway 220 and the distance between liquid outlet channel 230 and liquid outlet channel 230 can arrange very near.In embody rule, the position offered of the shape of cleaning tank 210 and feed pathway 220 and liquid outlet channel 230 can be determined according to actual conditions, all belongs to protection scope of the present invention.Like this, all sample transfer passages 202 and sample collection logical all surround by cleaning tank 210, no matter the sample in sample transfer passage 202 and sample collection passage 201 to which direction spreads, and can be intercepted by cleaning tank 210, cleaning performance is good, avoids producing cleaning dead angle.
Particularly, as shown in Figure 1, Figure 2 and Figure 7, described sample transfer passage 202 offers at least two, described cleaning tank 210 comprises and surrounds or partly surround in described sample transfer passage 202 or/and the peripheral channel 211 of sample collection passage 201 and the region for peripheral channel 211 being surrounded formation are divided at least two subregional divider passages 212, described divider passages 212 is positioned at described peripheral channel 211 and surrounds the region of formation and be connected with described peripheral channel 211, is at least two zonings with the region separation formed by peripheral channel 211.Quantity and the layout of divider passages 212 can be determined according to actual conditions, all belong to protection scope of the present invention.In embody rule, one end of divider passages 212 can be communicated on peripheral channel 211, or the two ends of divider passages 212 are connected on peripheral channel 211.As shown in Figure 8, breach etc. can also be set in divider passages 212, all belong to protection scope of the present invention.The position of feed pathway 220 and liquid outlet channel 230 can be arranged in peripheral channel 211 or divider passages 212, also can be located at respectively in peripheral channel 211 and divider passages 212, all belong to protection scope of the present invention.As shown in Figure 8, the position of feed pathway 220 and liquid outlet channel 230 is arranged at the two ends place of breach in divider passages 212 respectively.The sample collection passage 201 of different sample dosing channel 101 correspondence and sample transfer passage 202 can separate by divider passages 212 one by one, and cleaning performance is better, has stopped the cross pollution between different sample channel further.
Particularly, as shown in Figure 1, Figure 2 and Figure 7, described sample dosing channel 101 is a corresponding sample collection passage 201 and a sample transfer passage 202 respectively, is positioned at samely is separated the zoning formed by divider passages 212 corresponding to the sample collection passage 201 of same sample dosing channel 101 and sample transfer passage 202.Like this, the sample collection passage 201 of different sample dosing channel 101 correspondence and sample transfer passage 202 separate by divider passages 212 one by one, and cleaning performance is better, have stopped the cross pollution between different sample channel further.
Particularly, as shown in Figure 1, Figure 2 and Figure 7, described sample dosing channel 101 offers at least two, described sample collection road is used for each sample dosing channel 101 to connect to form passage chain, the sample collection passage 201 being positioned at described passage chain one end is connected to sample, and the sample collection passage 201 being positioned at the described passage chain the other end is connected to sample suction pump 420.In the present embodiment, sample dosing channel 101 is provided with two, on left side stator 200, the corresponding sample collection passage 201 be provided with for being communicated with by these two sample dosing channel 101, the stator 200 on the right is provided with two sample collection passages 201 that can be connected with sample dosing channel 101.The stator 200 on left and right both sides is provided with two sample transfer passages 202 that can be communicated with sample dosing channel 101.Sample collection passage 201 on the stator 200 on left and right both sides is coaxially arranged, sample transfer passage 202 on the stator 200 on left and right both sides is coaxially arranged, when moving plate 100 rotates the position of setting, the sample dosing channel 101 on moving plate 100 can be communicated with sample collection passage 201, sample transfer passage 202 respectively.When stator 200 turns to correct position to moving plate 100 relatively, the two ends of sample dosing channel 101 are connected with the sample collection passage 201 on left side stator 200 and the sample collection passage 201 on the right stator 200 respectively.In the present embodiment, two sample collection passages 201 on left side stator 200 are connected, so that two sample dosing channel 101 are connected, one end of two sample collection passages 201 on the stator 200 of the right is connected to sample dosing channel 101, the other end is connected to sample and sample suction pump 420, thus sample can be sucked sample dosing channel 101 by sample collection passage 201, complete quantitative sampling, then moving plate 100 is rotated, sample dosing channel 101 and sample transfer passage 202 are connected, under the effect of sample presentation pump 410, sample in sample dosing channel 101 can export from liquid separatnig valve, achieve the accurate quantification of sample and distribute efficiently.
Particularly, as shown in Figure 1, Figure 2 with shown in Fig. 5, pressure in described cleaning tank 210 is negative pressure, effectively can prevent the bad phenomenon such as the generation sepage between stator 200 and moving plate 100, also can ensure that the cleaning solution in cleaning tank 210 can not ooze in sample collection passage 201, sample transfer passage 202 or sample dosing channel 101, reliability is high.In embody rule, can connect negative pressure generator on liquid outlet channel 230, negative pressure generator can be air pump etc., all belongs to protection scope of the present invention.If under cleaning tank 210 maintains barotropic state for a long time, cleaning tank 210 outwards sepage can be caused, thus affect sample collection passage 201, sample dosing channel 101 and sample transfer passage 202.
Preferably, as shown in Figure 1, Figure 2 with shown in Fig. 5, the distance between described cleaning tank 210 and the edge of stator 200 and moving plate 100 is greater than 2mm, and the distance between described cleaning tank 210 and the edge of sample collection passage 201 and sample transfer passage 202 is greater than 2mm.Like this, the requirement of minimum sealant band width can be met.The required distance that the edge demand fulfillment of cleaning tank 210 and stator 200 or moving plate 100 is certain, and cleaning tank 210 and also must meet certain required distance between all sample collection passages 201 and sample transfer passage 202, in the present embodiment, distance between the edge of cleaning tank 210 and stator 200 and moving plate 100, distance between cleaning tank 210 and the edge of sample collection passage 201 and sample transfer passage 202, these two distances are called sealant band width.Sealant band width is too small, can cause the outside sepage of liquid separatnig valve, also can have influence on sample collection passage 201 and sample transfer passage 202.By such design, liquid-impermeable between stator 200 and moving plate 100 can be ensured, and without the need to additional designs seal ring again, stator 200 and moving plate 100 are sealed, simplify the structure of liquid separatnig valve, can smoothly relatively rotate between stator 200 and moving plate 100, due between stator 200 and moving plate 100 without the need to arranging seal ring, therefore stopped the hidden danger of ring wear, be conducive to the working life extending product.In embody rule; distance between described cleaning tank 210 and the edge of stator 200 and moving plate 100 and the distance between the edge of cleaning tank 210 and sample collection passage 201 and sample transfer passage 202 all can set according to actual conditions, all belong to protection scope of the present invention.
The embodiment of the present invention additionally provides a kind of medical equipment, and described medical equipment have above-mentioned liquid separatnig valve.Medical equipment can be blood cell analyzers etc., above-mentioned liquid separatnig valve may be used for the accurate quantification and the efficient allocation that realize blood sample, by offering cleaning tank 210, described cleaning tank 210 is arranged on the end face that described stator 200 and moving plate 100 fit, and described cleaning tank 210 is positioned at described sample transfer passage 202 or/and the periphery of sample collection passage 201.By cleaning tank 210 is arranged at sample transfer passage 202 or/and the periphery of sample collection passage 201, when moving plate 100 relative to stator 200 rotate carry out runner switch time, cleaning tank 210 can the region at thorough inswept each passage place, with the surface that clean stator 200 and moving plate 100 are affixed, the surface of valve block can be cleaned to greatest extent, no matter sample toward which direction spreads, all can be intercepted by cleaning tank 210, thus control the contaminated area on liquid separatnig valve surface to greatest extent, avoid producing cleaning dead angle, stop the hidden danger of sample cross contamination, equipment reliability is high.And cleaning tank 210 structure is simple, be convenient to processing, low cost of manufacture.Cleaning way in sample transfer passage 202, sample collection passage 201 and sample dosing channel 101 for inject cleaning solution in each corresponding pipeline.
Further, described cleaning tank 210 comprises surrounding or partly surrounding and is divided at least two subregional divider passages 212 in described sample transfer passage 202 and the peripheral channel 211 of sample collection passage 201 and the region for peripheral channel 211 being surrounded formation, described divider passages 212 is positioned at described peripheral channel 211 and surrounds the region of formation and be connected with described peripheral channel 211, is at least two zonings with the region separation formed by peripheral channel 211.The sample collection passage 201 of different sample dosing channel 101 correspondence and sample transfer passage 202 can separate by divider passages 212 one by one, and cleaning performance is better, has stopped the cross pollution between different sample channel further.
Further, by the pressure in cleaning tank 210 is set to negative pressure state, and making the distance between described cleaning tank 210 and the edge of stator 200 and moving plate 100 be greater than 2mm, the distance between described cleaning tank 210 and the edge of sample collection passage 201 and sample transfer passage 202 is also greater than 2mm.By such design, liquid separatnig valve liquid-impermeable can be ensured, and without the need to additional designs seal ring again, stator 200 and moving plate 100 are sealed, simplify the structure of liquid separatnig valve, can smoothly relatively rotate between stator 200 and moving plate 100, due between stator 200 and moving plate 100 without the need to arranging seal ring, therefore stopped the hidden danger of ring wear, be conducive to the working life extending product.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a liquid separatnig valve, comprise stator and the moving plate that can rotate relative to described stator, described moving plate offers sample dosing channel, described stator offers the sample collection passage and sample transfer passage that can connect with described sample dosing channel respectively when moving plate turns to diverse location, it is characterized in that, on described stator or moving plate, offer the cleaning tank that can pass into cleaning solution, described cleaning tank is arranged on the end face that described stator and moving plate fit, and described cleaning tank is positioned at described sample transfer passage or/and the periphery of sample collection passage; When moving plate relative to stator rotate carry out passage bridge time, described cleaning tank can sweep the region at each passage place.
2. liquid separatnig valve as claimed in claim 1, it is characterized in that, described stator is provided with two, and described moving plate is provided with one, described moving plate rotating clip is located between described two stators, and the bi-side that described two stators are relative fit with two end faces of moving plate respectively.
3. liquid separatnig valve as claimed in claim 2, it is characterized in that, described cleaning tank is opened on described stator, and described stator offers the feed pathway being communicated in described cleaning tank and liquid outlet channel.
4. liquid separatnig valve as claimed in claim 3, is characterized in that, described two stators all offer feed pathway and the liquid outlet channel of the cleaning tank be communicated on this stator.
5. liquid separatnig valve as claimed in claim 3, it is characterized in that, described feed pathway is opened in wherein on a stator and the cleaning tank be communicated on this stator, described liquid outlet channel to be opened on another stator and the cleaning tank be communicated on this stator, described moving plate offers the series connection via hole for being communicated with the cleaning tank on described two stators.
6. the liquid separatnig valve according to any one of claim 1 to 5, is characterized in that, described cleaning tank surrounds or partly surround in described sample transfer passage and sample collection channels peripheral, and described cleaning tank is closed circular or is notched ring-type.
7. the liquid separatnig valve according to any one of claim 1 to 5, it is characterized in that, described sample transfer passage offers at least two, described cleaning tank comprises and surrounds or partly surround in described sample transfer passage or/and the peripheral channel of sample collection passage and the region for peripheral channel being surrounded formation are divided at least two subregional divider passages, and described divider passages is positioned at described peripheral channel and surrounds the region of formation and be connected with described peripheral channel.
8. liquid separatnig valve as claimed in claim 7, it is characterized in that, described sample dosing channel is a corresponding sample collection passage and a sample transfer passage respectively, is positioned at samely is separated the zoning formed by divider passages corresponding to the sample collection passage of same sample dosing channel and sample transfer passage.
9. the liquid separatnig valve according to any one of claim 1 to 5, is characterized in that, the pressure in described cleaning tank is negative pressure.
10. the liquid separatnig valve according to any one of claim 1 to 5, is characterized in that, the distance between the edge of described cleaning tank and stator or moving plate is greater than 2mm; Distance between the edge of described cleaning tank and sample collection passage and sample transfer passage is greater than 2mm.
11. liquid separatnig valves according to any one of claim 1 to 5, it is characterized in that, described sample dosing channel offers at least two, described sample collection road is used for each sample dosing channel to connect to form passage chain, the sample collection expanding channels being positioned at described passage chain one end, in sample, is positioned at the sample collection expanding channels of the described passage chain the other end in sample suction pump.
12. 1 kinds of medical equipment, is characterized in that, have the liquid separatnig valve according to any one of claim 1 to 11.
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| CN201110337561.7A CN103090050B (en) | 2011-10-31 | 2011-10-31 | Liquid distributing valve and medical equipment with same |
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| CN201110337561.7A CN103090050B (en) | 2011-10-31 | 2011-10-31 | Liquid distributing valve and medical equipment with same |
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| CN1052188A (en) * | 1989-11-30 | 1991-06-12 | 科特电子公司 | Liquid measure and transmission valve group |
| CN1094513A (en) * | 1993-02-17 | 1994-11-02 | 东亚医用电子株式会社 | Sampling valve |
| CN101529243A (en) * | 2006-10-26 | 2009-09-09 | 贝克曼考尔特公司 | Apparatus for aspirating and dispensing liquids in an automated analyzer |
| CN102171500A (en) * | 2008-10-02 | 2011-08-31 | 辉瑞大药厂 | Rotary supply joint, rotary timing valve and product handling apparatus |
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| CN103090050A (en) | 2013-05-08 |
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Application publication date: 20130508 Assignee: Shenzhen Mindray Animal Medical Technology Co.,Ltd. Assignor: SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS Co.,Ltd. Contract record no.: X2022440020009 Denomination of invention: Dispensing valve and medical equipment having the same Granted publication date: 20150617 License type: Common License Record date: 20220804 |