CN201832284U - Safety valve and infusion and blood transfusion device provided with same - Google Patents
Safety valve and infusion and blood transfusion device provided with same Download PDFInfo
- Publication number
- CN201832284U CN201832284U CN2010201460423U CN201020146042U CN201832284U CN 201832284 U CN201832284 U CN 201832284U CN 2010201460423 U CN2010201460423 U CN 2010201460423U CN 201020146042 U CN201020146042 U CN 201020146042U CN 201832284 U CN201832284 U CN 201832284U
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- cup
- dropping funnel
- relief valve
- hole
- come
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Abstract
The utility model discloses a safety valve. The safety valve comprises an upper floating cup and a lower floating cup which are connected through a sliding column; a downward cavity is formed on the upper floating cup; an upward cavity is formed on the lower floating cup; a flexible glue base is also formed at the bottom of the lower floating cup; the safety valve further comprises a fixing support; a liquid leakage channel is arranged on the fixing support, or the liquid leakage channel is formed when the fixing support is matched with a dripping bucket; a through hole is formed in the center of the fixing support; the sliding column passing through the through hole is in sliding fit with the through hole; and the maximum scale of the upper floating cup and the lower floating cup is larger than the maximum scale of the through hole. The utility model further discloses a drip infusion and blood transfusion device. Through the arrangement of the safety valve, the problem in the prior art that the flexible glue base cannot accurately seal a low infusion hole is effectively solved; and meanwhile, rapid and automatic start of the drip infusion and blood transfusion device is achieved by fully utilizing the arranged upper floating cup, so as to save labor force.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, specifically a kind of drop liquid/blood transfusion apparatus and relief valve thereof.
Background technology
Transfusion device is mainly used in to patient and carries medicinal liquid or blood, and its structure mainly comprises contact pin, upper tubing, dropping funnel, following tube for transfusion, by-pass cock and entry needle.When the transfusion device of employing said structure is infused to patient, need medical personnel to check the transfusion situation at any time, especially giving some old men or child transfusion, not for a long time at the residue medicinal liquid, medical personnel then can not leave usually, finish until patient's transfusion infusion needle is extracted.If liquid exhausts, but infusion needle also in human body, so can be owing to the effect of negative pressure in the tube for transfusion, the blood that causes the patient refluxes or air enters in the patient body by transfusion device to tube for transfusion, thereby the patient is damaged or even dead.
In order to solve the problems of the technologies described above, in the prior art, Chinese patent literature CN201061645Y discloses a kind of disposable use automatic-diversion closure transfusion device, this transfusion device is compared with general infusion set, it is exactly that dropping funnel with common disposable infusion set has changed the automatic-diversion closure dropping funnel into, and the bottom that the medical plastic spare of floating member and the automatic-diversion closure dropping funnel that aseptic medical silica-gel driving fit part constitutes are housed in the top of the automatic-diversion closure dropping funnel that described automatic-diversion closure dropping funnel is made of after the floating back-up ring of limit is bonding cover on the dropping funnel and the dropping funnel drain pan bonds and forms.Above-mentioned automatic-diversion closure transfusion device is pressed onto on the dropper of dropping funnel bottom at the medical silica-gel driving fit part that will be arranged at described medical plastic spare bottom behind the liquid of being totally lost by the gravity that utilizes medical plastic spare, thereby realize sealing to the transfusion device bottom, occur the appearance that blood refluxes or causes dangerous situations such as air embolism, thrombosis to human body when being intended to prevent to use transfusion device to infuse, reduce the generation of malpractice to greatest extent.
Though spell out this transfusion device in the prior art is to utilize the gravity of medical plastic spare to realize medical silica-gel driving fit part is pressed onto on the dropper of dropping funnel bottom, but, because its medical plastic spare that is used for automatic-diversion closure need be after fluid drips falls behind the arrival certain depth, thereby floating the following tube for transfusion that will seal automatically, it opens, so described medical plastic spare can be selected the lighter material of weight, but select medical plastic spare after this kind material when liquid is about to drip off, because its weight is lighter, so can't realize eventually fast and accurately medical silica-gel driving fit part being pressed onto on the dropper of dropping funnel bottom.
The utility model content
For this reason, technical problem to be solved in the utility model is a relief valve light weight of the prior art, can't utilize gravity that relief valve is sealed following tube for transfusion accurately and rapidly, thereby a kind of buoyancy and gravity of having concurrently is provided, can be accurately, the relief valve to descending tube for transfusion to seal fast.
For solving the problems of the technologies described above, this utility model provides a kind of relief valve, described relief valve places in the dropping funnel, described relief valve comprises the come-up cup and the cup of floating downward that connect by traveller, described come-up cup formation has downward cavity, the described cup formation of floating downward has cavity upwards, also forms the flexible glue base in described bottom of floating downward cup; Described relief valve also comprises a fixed support, described fixed support is provided with and is formed with the leakage passage when leakage passage or described fixed support cooperate with described dropping funnel, described fixed support central authorities are formed with a through hole, described traveller runs through described through hole, be slidingly matched with described through hole, the out to out of the described cup of floating downward is greater than the out to out of described through hole; The out to out of described come-up cup is less than the out to out of described leakage outside diameter of passage and greater than the out to out of described through hole.The lifting rate of described come-up cup at least 1/2 volume and the lifting rate of the described cup of floating downward are greater than the gross weight of described come-up cup, described float downward cup, described flexible glue base and described traveller.
Wherein, described leakage passage is a liquid-leaking nozzle.
Described fixed support is polygon cylinder or cylinder.
Described come-up cup is a truncated cone, and the described cup of floating downward is the rounding taper type.
Described traveller two ends form shrinkage pool respectively, form boss at described come-up cup and the described cavity inside of floating downward cup, and described boss matches with described shrinkage pool and is connected.
This utility model is also on the basis that discloses above-mentioned relief valve, fluid and blood transfusion apparatus with this relief valve is further disclosed, it comprises contact pin, upper tubing, dropping funnel, following tube for transfusion, by-pass cock, entry needle, described dropping funnel is pegged graft by last dropping funnel and following dropping funnel and is formed, described relief valve places close tube for transfusion place down in the dropping funnel, and the described fixed support of described relief valve is connected to described dropping funnel down or goes up the inner and close described splicing position of dropping funnel; The centrage of the described traveller of described relief valve and the described centrage of tube for transfusion down coincide, and described flexible glue base seals described infusion hole down.
Wherein, described dropping funnel down and the described splicing position of going up dropping funnel are double-decker, form the scrobicular ring that matches and peg graft with described upward dropping funnel between described double-deck internal layer and the skin.
The fixed support of described relief valve is connected in the described internal layer.
The height sum of described traveller and the described cup of floating downward is greater than the described height of dropping funnel down.
The described dropping funnel of going up is plugged in the described inside of dropping funnel down.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) relief valve described in the utility model is provided with the come-up cup and a cup of floating downward that connects by traveller, also form the flexible glue base in described bottom of floating downward cup, described relief valve also comprises a fixed support, described fixed support is provided with and is formed with the leakage passage when leakage passage or described fixed support cooperate with described dropping funnel, described fixed support central authorities are formed with a through hole, described traveller runs through described through hole, is slidingly matched with described through hole.This is provided with on the one hand and has guaranteed that traveller can fluctuate freely along with transfusion liquid in through hole, on the other hand owing to the restriction of through hole to traveller, float about having avoided upper and lower floating cup and flexible glue base owing to the continuous drippage of transfusion liquid, thereby make upper and lower floating cup to move up and down, after just can exhausting at the liquid of dropping funnel inside, the flexible glue base directly drop to down tube for transfusion mouth of pipe place, following infusion hole is sealed, its sealing accuracy height, security performance is good.
In addition, relief valve described in the utility model also forms downward cavity in described come-up cup, because the come-up cup of this hollow structure is in light weight, thereby the come-up cup that has effectively utilized hollow structure can increase the overall buoyancy of relief valve when the liquid drippage is arranged, and the lifting rate of lifting rate by described come-up cup at least 1/2 volume of further qualification and the described cup of floating downward is greater than described come-up glass, the described cup of floating downward, the gross weight of described flexible glue base and described traveller, thereby realized in very short time in liquid when beginning drippage, utilizing come-up cup and the described buoyancy of floating downward glass overcome described on, the cup of floating downward, the gross weight of flexible glue base and traveller, drive described come-up cup, traveller, float downward the cup and the flexible glue base float voluntarily fast, do not need medical personnel's manual squeezing dropper, saved the labour force.
Of paramount importancely be, it is that liquid level drop to when being lower than on the cup of floating downward rim of a cup that relief valve described in the utility model is about to finish in infusion program, under the common action of gravity of the liquid that the flexible glue base can be contained in come-up cup, the float downward cup and the cup of floating downward, described flexible glue base is pressed into down the infusion hole place it is sealed, its sealing accuracy height and efficient are also high.
In addition, relief valve described in the utility model is provided with the out to out of the out to out of the described come-up cup and the cup of floating downward greater than described through hole, guaranteed like this described relief valve float or the process of landing in, the come-up cup or the cup of floating downward can not break away from the support bracket fastened restriction of relief valve.Further limit the out to out of the out to out of described come-up cup, guarantee that like this liquid can directly enter the described cup place of floating downward by described leakage passage when drippage less than described leakage outside diameter of passage.
(2) in the relief valve described in the utility model, form shrinkage pool respectively at described traveller two ends, form boss at described come-up cup and the described cavity inside of floating downward cup, described boss matches with described shrinkage pool and is connected, this is provided with has realized removably connecting of described traveller, come-up cup and the cup of floating downward, and is convenient to very much assembling and manufacturing.
(3) fluid and blood transfusion apparatus that is provided with above-mentioned relief valve described in the utility model, wherein said dropping funnel are pegged graft by last dropping funnel and following dropping funnel and are formed, and are convenient to described relief valve and put into wherein; Described relief valve places close tube for transfusion place down in the dropping funnel, and the described fixed support of described relief valve is connected to described dropping funnel down or goes up the inner and close described splicing position of dropping funnel, and the centrage of the described traveller of described relief valve and the described centrage of tube for transfusion down coincide; The above-mentioned setting guaranteed that described relief valve can stable sliding up and down under support bracket fastened fixation, thereby guarantees that further the flexible glue base can accurately seal the tube for transfusion mouth of pipe down.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, this utility model is described in further detail, wherein below
Fig. 1 is the sketch map of each assembly of relief valve described in the utility model;
Fig. 2 is the sketch map of relief valve assembled state described in the utility model;
Fig. 3 is a fluid and blood transfusion apparatus sketch map described in the utility model;
Fig. 3 (1) is the enlarged diagram of splicing position shown in Fig. 3;
Fig. 4 is the vertical view of relief valve fixed support described in the utility model when cooperating with dropping funnel when being octagonal cylinder;
Fig. 5 is the vertical view of relief valve fixed support described in the utility model when cooperating with dropping funnel when being the pentagon cylinder;
Fig. 6 is the vertical view of relief valve fixed support described in the utility model when cooperating with dropping funnel when being cylinder;
Fig. 7 is the connected mode sketch map of come-up cup and traveller in the relief valve described in the utility model;
Fig. 8 is the double-deck vertical view of dropping funnel down for being provided with support bracket fastened splicing position in the fluid and blood transfusion apparatus described in the utility model.
Reference numeral is expressed as among the figure: 1-relief valve, the 2-cup that floats, the 3-cup of floating downward, 4-cavity, 5-flexible glue base, 6-traveller, 7-fixed support, 8-leakage passage, the 9-through hole, 10-shrinkage pool, 11-boss, 12-contact pin, the 13-upper tubing, 14-dropping funnel, the last dropping funnel of 141-, dropping funnel under the 142-, tube for transfusion under the 15-, 16-by-pass cock, 17-entry needle, infusion hole under the 18-, the 19-splicing position, 20-internal layer, 21-skin, 22-scrobicular ring.
The specific embodiment
Be illustrated in figure 1 as the sketch map of each assembly of relief valve 1 described in the utility model, can see that from this figure described relief valve 1 comprises the come-up cup 2 and the cup 3 of floating downward; Wherein, described come-up cup 2 is truncated cone, and portion forms downward cavity 4 within it; Described 3 in the cup of floating downward is the rounding taper type, its inside forms cavity 4 upwards, its bottom forms the flexible glue base 5 that following infusion hole 18 is sealed, described come-up cup 2 is realized being connected of the two with the described cup 3 of floating downward by traveller 6, as can see from Figure 1, the two ends of described traveller 6 are arranged at cavity 4 interior the realizations being connected upper and lower floating cup of described come-up cup 2 and the described cup 3 of floating downward respectively.In this embodiment, described traveller 6 is that molding is fixedlyed connected with described come-up cup 2 and the described connected mode of floating downward cup 3.
In addition, can also see that in Fig. 1 relief valve 1 described in the utility model also comprises a fixed support 7, the shape of fixed support 7 can be set to polygon cylinder or cylinder, and the polygon cylinder can be referring to Fig. 4 or shown in Figure 5, and cylindrical the setting seen Fig. 1 and Fig. 6; On described fixed support 7, also be provided with leakage passage 8 (seeing shown in Figure 6), or described fixed support 7 is formed with leakage passage 8 (seeing Fig. 4 or shown in Figure 5) when cooperating with described dropping funnel 14, and the purpose that leakage passage 8 is set is to realize the smooth and easy drippage of liquid or blood; Described leakage passage 8 can select to be set to liquid-leaking nozzle, also can be set to the leakage annulus, can certainly be arranged to any regular or irregular shape all can.Wherein, the setting of described leakage passage will adapt with the out to out of described come-up cup, just in order to realize purpose described in the utility model, need to guarantee the out to out of the out to out of come-up cup in the described relief valve less than described leakage outside diameter of passage, liquid just can at first enter the described cup place of floating downward when drippage like this.
Central authorities at described fixed support 7 also form a through hole 9, the described traveller 6 that is used to connect the described come-up cup 2 and the cup 3 of floating downward runs through described through hole 9 and is provided with, and realize being slidingly matched of described through hole 9, can guarantee that like this traveller 6 can freely fluctuate in the dropping liquid process in through hole 9, without any frictional resistance.
In the dropping liquid process, traveller 6 can drive upper and lower floating cup and fluctuate freely, can drive the landing from the through hole 9 of described fixed support 7 of upper and lower floating cup for fear of traveller in the process that fluctuates 6, so the out to out of relief valve described in the utility model 1 its upper and lower floating cup is greater than the out to out of described through hole 9.
In addition, relief valve 1 described in the utility model is for after can being implemented in described relief valve 1 and putting into described dropping funnel 14, described upper and lower floating cup and described traveller 6 and described flexible glue base 5 can float gradually automatically along with the drippage of liquid, and the gross weight of the lifting rate of the lifting rate of described come-up cup 2 at least 1/2 volumes and the described cup 3 of floating downward greater than described come-up cup 2, described float downward cup 3, described flexible glue base 5 and described traveller 6 also is set.
As embodiment that can conversion, traveller 6 described in the described relief valve 1 of present embodiment is connected with described come-up cup 2 and the described cup 3 of floating downward, select following implementation: at described traveller 6 two ends difference molding shrinkage pool 10, form boss 11 at described come-up cup 2 and described cavity 4 inside of floating downward cup 3, described boss 11 matches with described shrinkage pool 10 and is connected (seeing shown in Figure 7).So correspondingly, also can at the cavity 4 inner molding shrinkage pools of described come-up cup 2 and the described cup 3 of floating downward, so also can realize being connected of described traveller 6 and upper and lower floating cup 3 at described traveller 6 two ends difference molding boss.
In addition, upper and lower floating cup described in the utility model is not limited only to the shape described in the embodiment 1, and it can select to be set to the arbitrary shape that other can realize this utility model purpose.
Be illustrated in figure 3 as the fluid and blood transfusion apparatus with relief valve described in the foregoing description 1 described in the utility model, it comprises contact pin 12, upper tubing 13, dropping funnel 14, following tube for transfusion 15, by-pass cock 16, entry needle 17, described dropping funnel 14 is divided into two parts up and down, be respectively dropping funnel 141 and following dropping funnel 142, described upward dropping funnel 141 and described dropping funnel down 142 are pegged graft and are formed, tube for transfusion 15 places are provided with the relief valve 1 described in previous embodiment 1 or 2 in described dropping funnel 142 down and under close, guarantee that the flexible glue base 5 that has dripped back relief valve 1 at liquid can descend infusion hole 18 sealings; The fixed support 7 of described in this embodiment relief valve 1 is connected to the described 142 inner and close described splicing positions 19 of dropping funnel down, and the centrage of traveller 6 and the described centrage of tube for transfusion 15 down coincide, and 5 pairs of described infusion holes 18 down of described flexible glue base seal.
Can see that from local amplification view Fig. 3 (1) of Fig. 3 the described dropping funnel 141 of going up is plugged in the described inside of dropping funnel 142 down, has avoided like this owing to the two not tight situation that causes occurring liquid leakage in the process of liquid drippage of pegging graft.In fluid and blood transfusion apparatus described in the utility model, the fixed support 7 of described relief valve 1 also can be arranged on described inside and the close described splicing position 19 of going up dropping funnel 141, equally also can realize above-mentioned purpose.
In this embodiment, described upward dropping funnel 141 and described dropping funnel 142 down all only are single layer structures, grafting between the two is exactly simple the insertion, in order to realize the stability of above-mentioned grafting better, as embodiment that can conversion, in the fluid and blood transfusion apparatus described in the utility model, described dropping funnel 142 down and the described splicing position 19 of going up dropping funnel 141 can be set to double-decker, see shown in Figure 8, formed a scrobicular ring 22 between the internal layer 20 and outer 21 in this double-decker, graftings that match of described scrobicular ring 22 and the described lower limb of going up dropping funnel 141 realized described go up dropping funnel 141 and the described firm grafting of descending between the dropping funnel 142.For above-mentioned setting, can select the fixed support 7 of described relief valve is connected in the inside of described internal layer 20 simultaneously.
Can after finishing, can realize dropping liquid to descending the sealing of infusion hole 18, so the height of the height sum of described traveller 6 and the described cup 3 of floating downward greater than dropping funnel 142 under described preferably is set in the fluid and blood transfusion apparatus of the present invention in order to guarantee flexible glue base 5.
Fluid and blood transfusion apparatus described in the foregoing description in use, do not open earlier by-pass cock 16, blood in medicinal liquid in the medicine bottle or the blood bag enters dropping funnel 14 by contact pin 12 through upper tubing 13, at this moment medicinal liquid or blood enter down dropping funnel 142 through leakage passage 8, continuous drippage along with medicinal liquid or blood, medicinal liquid or blood can cover the described cup 3 and up at least 1/2 place of described come-up cup 2 volumes floated downward gradually, like this under the common buoyancy function of the come-up cup 2 with hollow structure and the cup 3 of floating downward, drive described come-up cup 2, traveller 6, described float downward the cup 3 and flexible glue base 5 float together, at this moment open by-pass cock 16, medicinal liquid or blood are realized normal infusion or blood transfusion by described leakage passage 8, medicinal liquid in the dropping funnel 14 or blood process infusion hole 18 down enter down tube for transfusion 15, and by by-pass cock 16 control down tube for transfusions 15 enter the flow of entry needle 17, medicinal liquid or blood enter in the human body by entry needle 17; In said process along with the drippage of medicinal liquid or blood, the come-up cup 2 and the cup 3 of floating downward that are connected by described traveller 6 also fluctuate, but because described traveller 6 and the spacing of described through hole 9 are slidingly matched the situation of floating about can not occurred by described traveller 6 the come-up cup 2 that connects and the cup 3 of floating downward.Like this along with blood in medicine bottle herb liquid or the blood bag reduces at leisure when not having medicinal liquid or blood, dropping funnel 14 still contains a certain amount of medicinal liquid or blood, along with medicinal liquid in the dropping funnel 14 or blood continue to reduce, the described come-up cup 2 that is connected by described traveller 6 and the cup 3 of floating downward also descend along with the decline of the horizontal plane of medicinal liquid or blood, instantly after the liquid level of dropping funnel 142 herb liquids or blood is lower than the last rim of a cup of described come-up cup 2, flexible glue base 5 is just at come-up cup 2, float downward cup 3 and described common action of gravity of floating downward cup 3 inner institute's medicinal liquids of containing or blood contact down under dropping funnel 142 bottoms, and then seal by the described infusion holes 18 down of 5 pairs of flexible glue bases that are arranged on described cup 3 bottoms of floating downward, therefore the air in the dropping funnel 14 just can not enter down tube for transfusion 15 by following infusion hole 18, then enter in the human body, so avoided the appearance of blood back phenomenon, ensured patient's life security.
The come-up cup 2 described in the utility model and the cup 3 of floating downward all adopt medical hard plastics to make.
In addition, " the leakage outside diameter of passage " described in this utility model, wherein said external diameter is meant with support bracket fastened center and is the center of circle and is 2 times of distances of radius apart from the distance between the edge of this center leakage passage farthest.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of this utility model creation.
Claims (10)
1. relief valve, described relief valve places in the dropping funnel, it is characterized in that: described relief valve comprises the come-up cup and the cup of floating downward that connect by traveller, described come-up cup formation has downward cavity, the described cup formation of floating downward has cavity upwards, also forms the flexible glue base in described bottom of floating downward cup;
Described relief valve also comprises a fixed support, described fixed support is provided with and is formed with the leakage passage when leakage passage or described fixed support cooperate with described dropping funnel, described fixed support central authorities are formed with a through hole, described traveller runs through described through hole, be slidingly matched with described through hole, the out to out of the described cup of floating downward is greater than the out to out of described through hole;
The out to out of described come-up cup is less than the out to out of described leakage outside diameter of passage and greater than the out to out of described through hole;
The lifting rate of described come-up cup at least 1/2 volume and the lifting rate of the described cup of floating downward are greater than the gross weight of described come-up cup, described float downward cup, described flexible glue base and described traveller.
2. relief valve according to claim 1 is characterized in that: described leakage passage is a liquid-leaking nozzle.
3. relief valve according to claim 1 is characterized in that: described fixed support is polygon cylinder or cylinder.
4. relief valve according to claim 1 is characterized in that: described come-up cup is truncated cone, and the described cup of floating downward is the rounding taper type.
5. relief valve according to claim 1 is characterized in that: described traveller two ends form shrinkage pool respectively, form boss at described come-up cup and the described cavity inside of floating downward cup, and described boss matches with described shrinkage pool and is connected.
6. the fluid and blood transfusion apparatus with the arbitrary described relief valve of claim 1～5 comprises contact pin, upper tubing, dropping funnel, following tube for transfusion, by-pass cock, entry needle, it is characterized in that:
Described dropping funnel is pegged graft by last dropping funnel and following dropping funnel and is formed, and described relief valve places close tube for transfusion place down in the dropping funnel, and the described fixed support of described relief valve is connected to described dropping funnel down or goes up the inner and close described splicing position of dropping funnel;
The centrage of the described traveller of described relief valve and the described centrage of tube for transfusion down coincide, and described flexible glue base seals described infusion hole down.
7. fluid and blood transfusion apparatus according to claim 6 is characterized in that: described dropping funnel down and the described splicing position of going up dropping funnel are double-decker, form the scrobicular ring that matches and peg graft with described upward dropping funnel between described double-deck internal layer and the skin.
8. fluid and blood transfusion apparatus according to claim 6 is characterized in that: the fixed support of described relief valve is connected in the described internal layer.
9. fluid and blood transfusion apparatus according to claim 7 is characterized in that: the height sum of described traveller and the described cup of floating downward is greater than the described height of dropping funnel down.
10. fluid and blood transfusion apparatus according to claim 6 is characterized in that: the described dropping funnel of going up is plugged in the described inside of dropping funnel down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201460423U CN201832284U (en) | 2010-03-31 | 2010-03-31 | Safety valve and infusion and blood transfusion device provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201460423U CN201832284U (en) | 2010-03-31 | 2010-03-31 | Safety valve and infusion and blood transfusion device provided with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201832284U true CN201832284U (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201460423U Expired - Fee Related CN201832284U (en) | 2010-03-31 | 2010-03-31 | Safety valve and infusion and blood transfusion device provided with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201832284U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357083A (en) * | 2012-04-10 | 2013-10-23 | 上海金塔医用器材有限公司 | Disposable liquor-stopping and flow-slowing infusion device |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
-
2010
- 2010-03-31 CN CN2010201460423U patent/CN201832284U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357083A (en) * | 2012-04-10 | 2013-10-23 | 上海金塔医用器材有限公司 | Disposable liquor-stopping and flow-slowing infusion device |
| CN105126191A (en) * | 2015-08-19 | 2015-12-09 | 四川普瑞斯生物科技有限公司 | Automatic exhausting, liquid-stopping and blood return-preventing drip chamber |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20140331 |