CN102836474B - Intelligent automatic liquid-stopping blood return prevention Murphy pipe and transfusion device thereof - Google Patents
Intelligent automatic liquid-stopping blood return prevention Murphy pipe and transfusion device thereof Download PDFInfo
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- CN102836474B CN102836474B CN201210276373.2A CN201210276373A CN102836474B CN 102836474 B CN102836474 B CN 102836474B CN 201210276373 A CN201210276373 A CN 201210276373A CN 102836474 B CN102836474 B CN 102836474B
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Abstract
The invention discloses a kind of intelligent automatic liquid-stopping and delay blood back Murphy pipe, comprise body and be located at the dropper of body internal upper part, body has upper interface and lower interface, upper interface is the upper port of dropper, filter is provided with in the bottom of body, filter has enclosed cavity room, be provided with at described enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane of lower space, described chamber end face is vertically provided with the feed tube being communicated with described chamber upper space and body, the porch of feed tube is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of described closed chamber has the liquid outlet as described lower interface, described chamber end face is provided with the weepage holes being communicated with described chamber upper space and body, also disclose the transfusion device using above-mentioned automatic liquid-stopping to delay blood back Murphy pipe.The present invention is when flowing into without medicinal liquid in body, and the debris between chamber end face and feed tube entrance slowly flows across filter membrane by weepage holes, realizes automatic liquid-stopping and delays blood back function.
Description
Technical field
The present invention relates to a kind of Murphy pipe, particularly relate to a kind of intelligent automatic liquid-stopping blood return prevention Murphy pipe, also relate to the transfusion device using this automatic liquid-stopping blood return prevention Murphy pipe.
Background technology
Medical Transfusion device (namely referring to intravenous transfusion device) is a kind of common for the medical disposable material to human vein conveying medicinal liquid clinically, and it is generally made up of bottle plug puncture unit, tube for transfusion (comprising upper conduit and downcomer), air filter, Murphy pipe, filter, flow regulator, female Luer and vein scalp acupuncture.Wherein, the Main Function of Murphy pipe be judge in infusion process infuse flow velocity and produce siphonage to slow down infusion pressure.
Existing intravenous transfusion device is in infusion process, owing to storing air in tube for transfusion and Murphy pipe, add the existence of Murphy pipe siphonage, make the gas in necessary emptying above-mentioned tubular body before venipuncture, this operation sequence can increase the workload of nursing staff, cause awkward defect, thus reduce work efficiency.
In addition, after medicinal liquid stream in intravenous transfusion device is complete, if change medicinal liquid bottle or removal transfusion device not in time, medicinal liquid can flow always, until just can stop during the gravitational equilibrium of the venous pressure of human body and transfusion device herb liquid, due to the diffusion of medicinal liquid, make blood of human body be back in the tube for transfusion of transfusion device, this blood back phenomenon not only can cause the terrified of sufferer, and nursing staff will spend long duration aerofluxus again, what is more, be easy to form thrombosis and cause phlebitic generation etc.
In order to solve the problems of the technologies described above, these those skilled in the art have developed the multiple transfusion device with automatic liquid-stopping function both at home and abroad, and its operation principle is: after the medicinal liquid in Murphy pipe drips off, and self-closed downcomer water inlet is in case return blood, but it effectively cannot realize the object of blood return prevention.In addition; China authorizes patent of invention (patent No. 201020580924.0) to disclose a kind of bubble-free drainage blood backflow prevention infusion; it adopts drainage strip debris a small amount of in Murphy pipe to be introduced the front end of scalp acupuncture by the mode of syphon drainage to reach the effect of blood return prevention; but the structural design more complicated of drainage strip; processing technology is very loaded down with trivial details; production cost is higher, is difficult to accomplish scale production.
Summary of the invention
First object of the present invention be to provide a kind of one-shot forming, processing technology simple, easy to use, can greatly reduce production cost, can large-scale production, effectively realize the intelligent automatic liquid-stopping blood return prevention Murphy pipe of return blood.
Second object of the present invention is to provide a kind of transfusion device using above-mentioned automatic liquid-stopping blood return prevention Murphy pipe.
First object of the present invention is realized by following technical measures: a kind of intelligent automatic liquid-stopping blood return prevention Murphy pipe, comprise body and be located at the dropper of body internal upper part, described body has upper interface and lower interface, upper interface is the upper port of described dropper, filter is provided with in the bottom of described body, described filter has enclosed cavity room, be provided with at described enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane of lower space, described chamber end face is vertically provided with the feed tube being communicated with described chamber upper space and body, the porch of described feed tube is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of described closed chamber has the liquid outlet as described lower interface, it is characterized in that described chamber end face is provided with the weepage holes being communicated with described chamber upper space and body, during to make to flow into without medicinal liquid in body, debris between chamber end face and feed tube entrance slowly flows across filter membrane by described weepage holes, realize automatic liquid-stopping blood return prevention function.
The present invention is not when having medicinal liquid to flow into automatic liquid-stopping blood return prevention Murphy pipe, a certain amount of residual liquid can be left between chamber end face and inlet opening entrance, this residual liquid cannot flow into filter membrane at short notice, but slowly flow into filter membrane by weepage holes, and to enter in downcomer until vein scalp acupuncture thus discharge transfusion device, realize the function of automatic liquid-stopping blood return prevention; In addition, when in the body that medicinal liquid flows into automatic liquid-stopping blood return prevention Murphy pipe, surface tension effects due to the open-celled structure on feed tube makes medicinal liquid can not soak filter membrane at short notice, so that the air in body to enter in downcomer by filter membrane until vein scalp acupuncture thus discharge transfusion device, to realize self-bleeding function.The present invention can save the operation link of nursing staff's manual vent, reduces workload, easy to use, increases work efficiency; And one-shot forming of the present invention, processing technology simply, greatly can reduce costs, accomplish scale production.
As a modification of the present invention, described chamber end face is provided with vertical short metal pipe, and described weepage holes is opened on the tube wall of this short metal pipe, contacts and debris is discharged body completely bottom the peritreme of described weepage holes with described chamber end face.Make the short metal pipe with weepage holes easily to realize in technique.
As one embodiment of the present invention, the closed chamber of described filter is fastened up and down by upper cover and lower cover and forms, the bottom of described lower cover is provided with the connection tube communicated with described lower space, the lower end mouth of pipe of described connection tube is described liquid outlet, described short metal pipe and feed tube are all positioned on the upper surface of described upper cover, the top closure of described feed tube and its tube wall is provided with open-celled structure.
As a further improvement on the present invention, described short metal pipe stretches out to be formed to the lower surface of upper cover and is positioned at the upper pipeline section of upper cover upper surface and is positioned at the lower tube section of upper cover lower surface, described lower tube section is downwards in gradually-reducing shape, and the mouth of pipe of described lower tube section presses close to the upper surface of described filter membrane as the liquid outlet of debris.
The present invention can have following embodiment, described open-celled structure at least one inlet opening for offering along the tube wall top circumference of feed tube, and the upper hole of described inlet opening is along being positioned on the top end face of described feed tube.
Body of the present invention is made up of pipe shaft, the top connection being located at pipe shaft two ends and lower contact, described upper and lower interface lays respectively on described upper and lower joint, the upper surface periphery of described upper cover has annular boss, described feed tube and short metal pipe are all located in this annular boss, described boss is fastened in the bottom of described pipe shaft, the base circumference of described boss has flange, and the lower end of described body is tightly placed in described flange circumferentially.
The present invention can do following further improvement, described pipe shaft has for the air in body is discharged extraneous steam vent.In automatic liquid-stopping process, the residual air in body can be discharged from steam vent.
As optimal way of the present invention, described short metal pipe is made up of Steel material, and as other embodiment, the material of short metal pipe also can select the metal materials such as ferrum is gold-plated, ferrum is silver-plated.
Second object of the present invention is realized by following technical measures: a kind of transfusion device using above-mentioned automatic liquid-stopping blood return prevention Murphy pipe, comprise the female Luer connected by tube for transfusion, characterized by further comprising and be arranged on female Luer with the automatic liquid-stopping blood return prevention Murphy pipe of any position of upper pipeline, described automatic liquid-stopping blood return prevention Murphy pipe comprises body and is located at the dropper of body internal upper part, described body has upper interface and lower interface, upper interface is the upper port of described dropper, filter is provided with in the bottom of described body, described filter has enclosed cavity room, be provided with at described enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane of lower space, described chamber end face is vertically provided with the feed tube being communicated with described chamber upper space and body, the porch of described feed tube is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of described closed chamber has the liquid outlet as described lower interface, described chamber end face is provided with the weepage holes being communicated with described chamber upper space and body, during to make to flow into without medicinal liquid in body, debris between chamber end face and feed tube entrance slowly flows across filter membrane by described weepage holes, realize automatic liquid-stopping blood return prevention function.
As one embodiment of the present invention, described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described air filter and described Murphy pipe.
As another embodiment of the invention, described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described Murphy pipe and described flow regulator.
As other embodiment of the present invention, described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described flow regulator and described female Luer.
Compared with prior art, the present invention has following significant effect:
(1) when the medicinal liquid stream in medicinal liquid bottle is complete, namely medicinal liquid is not had to flow into automatic liquid-stopping blood return prevention Murphy pipe of the present invention, a certain amount of residual liquid can be left between filter end face and feed tube entrance, this residual liquid cannot flow into filter membrane at short notice, but slowly flow into filter membrane by weepage holes, and to enter in downcomer until vein scalp acupuncture thus discharge transfusion device, realize automatic liquid-stopping blood return prevention function within a certain period of time, avoid nursing staff and fail to change in time infusion bottle or removal transfusion device and the blood back phenomenon occurred, save the operation link of nursing staff's manual vent, reduce workload, easy to use, increase work efficiency.
(2) when medicinal liquid flows into automatic liquid-stopping blood return prevention Murphy pipe of the present invention, surface tension effects due to the open-celled structure on feed tube makes medicinal liquid can not soak filter membrane at short notice, so that the air in body to enter in downcomer by filter membrane until vein scalp acupuncture thus discharge transfusion device, realize self-bleeding function, save the operation link of nursing staff's manual vent, reduce workload, easy to use, increase work efficiency.
(3) when changing medicinal liquid bottle, after extruding automatic liquid-stopping blood return prevention Murphy pipe, because the suction function produced makes medicinal liquid enter in filter by feed tube, the air in filter can be discharged by steam vent, therefore avoids the phenomenon that the liquid when replacing second bottle liquid medicine bottle stops dripping.
(4) automatic liquid-stopping blood return prevention Murphy pipe of the present invention one-shot forming, processing technology is simple, greatly can reduce costs, can accomplish scale production.
(5) structure of the present invention is simple, and the suitability is strong, can be widely used in the medical institutions such as clinic, hospital.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the structural representation of transfusion device of the present invention;
Fig. 2 is the structural representation of automatic liquid-stopping blood return prevention Murphy pipe of the present invention;
Fig. 3 is the structural representation (height reduction of annular boss) of upper cover;
Fig. 4 is the perspective diagram of lower cover.
Detailed description of the invention
Embodiment 1
As shown in figs. 2 to 4, it is a kind of intelligent automatic liquid-stopping blood return prevention Murphy pipe 1 of the present invention, comprise body and be located at the dropper 5 of body internal upper part, body has upper interface and lower interface, upper interface is the upper port of dropper 5, filter 6 is provided with in the bottom of body, filter 6 has closed chamber, be provided with at enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane 9 of lower space, chamber end face is vertically provided with the feed tube 11 being communicated with chamber upper space and body, entrance 12 place of feed tube 11 is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of closed chamber has the liquid outlet 82 as lower interface, chamber end face is provided with the weepage holes 20 being communicated with chamber upper space and body, during to make to flow into without medicinal liquid in body, debris between chamber end face and feed tube entrance, filter membrane is slowly flowed across by weepage holes, realize the function of automatic liquid-stopping blood return prevention.
Chamber end face is provided with vertical short metal pipe 30, and short metal pipe 30 is made up of Steel material, and weepage holes 20 is opened on the tube wall of this short metal pipe 30, and in the present embodiment, weepage holes 20 forms circular peritreme downwards after the mouth of pipe of short metal pipe 30 is kept straight on.Contact with chamber end face bottom the peritreme of weepage holes 20 and debris discharged completely body; The closed chamber of filter 6 is fastened by upper cover 7 and lower cover about 8 and forms, the bottom of lower cover 8 is provided with the connection tube 81 communicated with the lower space of filter 6, the lower end mouth of pipe of connection tube 81 is liquid outlet 82, short metal pipe 30 and feed tube 11 are all positioned on the upper surface of upper cover 7, the top closure of feed tube 11 and its tube wall is provided with open-celled structure.In the present embodiment, the top closure of feed tube 11 and open-celled structure is positioned on its tube wall, three inlet openings (not shown in FIG.) of open-celled structure for offering along the tube wall top circumference of feed tube 11, the upper hole of inlet opening is along being positioned on the top end face of feed tube 11.
Short metal pipe 30 stretches out to be formed to the lower surface of upper cover 7 and is positioned at the upper pipeline section of upper cover 7 upper surface and is positioned at the lower tube section of upper cover lower surface, lower tube section is downwards in gradually-reducing shape, be similar to cone, the mouth of pipe of lower tube section presses close to the upper surface of filter membrane 9 as the liquid outlet 73 of debris.
Body is made up of pipe shaft, the top connection being located at pipe shaft two ends and lower contact, upper and lower interface lays respectively on upper and lower joint, as shown in Figure 3, the upper surface periphery of upper cover 7 has annular boss, feed tube 11 and short metal pipe 30 are all located in this annular boss, boss is fastened in the bottom of pipe shaft, and the base circumference of boss has flange 72, and the lower end of body is tightly placed in flange 72 circumferentially.Pipe shaft has for the air in body is discharged extraneous steam vent 50.In automatic vent process, the air in body is discharged extraneous by steam vent.
As shown in Figure 1, a kind of transfusion device using above-mentioned automatic liquid-stopping blood return prevention Murphy pipe, comprise the female Luer 16 connected by tube for transfusion, also comprise and be arranged on female Luer 16 with automatic liquid-stopping blood return prevention Murphy pipe 1 (there is filter) of any position of upper pipeline, in the present embodiment, transfusion device comprises and (comprises connecting duct 10 by tube for transfusion from top to bottom, upper conduit 2 and downcomer 15) bottle plug puncture unit 3 that connects successively, air filter 4, Murphy pipe 40 (the Murphy pipe without filter), flow regulator 14 and vein scalp acupuncture 17, female Luer 16 is between flow regulator 14 and vein scalp acupuncture 17, wherein, Murphy pipe 40 comprises body and is located at the dropper 51 of body internal upper part, medicine feeding hole 18 is had on the tube wall top of body, automatic liquid-stopping blood return prevention Murphy pipe 1 is between Murphy pipe 40 and flow regulator 14.Automatic liquid-stopping blood return prevention Murphy pipe 1 comprises body and is located at the dropper 5 of body internal upper part, body has upper interface and lower interface, upper interface is the upper port of dropper 5, filter 6 is provided with in the bottom of body, filter 6 has closed chamber, be provided with at enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane 9 of lower space, chamber end face is vertically provided with the feed tube 11 being communicated with chamber upper space and body, the porch of feed tube 11 is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of closed chamber has the liquid outlet as lower interface, chamber end face is provided with the weepage holes 20 being communicated with chamber upper space and body, during to make to flow into without medicinal liquid in body, debris between chamber end face and feed tube entrance, filter membrane is slowly flowed across by weepage holes, realize the function of automatic liquid-stopping blood return prevention.
Embodiment 2
In the present embodiment (not drawing in figure) and embodiment 1, transfusion device difference is: automatic liquid-stopping blood return prevention Murphy pipe (having filter) is positioned between air filter and Murphy pipe (the Murphy pipe without filter).
Embodiment 3
In the present embodiment (not drawing in figure) and embodiment 1, transfusion device difference is: automatic liquid-stopping blood return prevention Murphy pipe (having filter) is between flow regulator and female Luer.
Automatic liquid-stopping blood return prevention principle of the present invention is: the debris (between the entrance and the upper cover of filter of feed tube) in automatic liquid-stopping blood return prevention Murphy pipe is flow on filter membrane lentamente by weepage holes trace, thus plays only liquid and blood return prevention effect; When changing medicinal liquid bottle, after extruding automatic liquid-stopping blood return prevention Murphy pipe, because the suction function produced makes medicinal liquid enter in filter by feed tube, continue transfusion, air in filter can be discharged by steam vent, therefore avoids the phenomenon that the liquid when replacing second bottle liquid medicine bottle stops dripping; In addition, when medicinal liquid bottle can not be changed in time, due to remain in feed tube entrance below the gravity drainage effect of a small amount of medicinal liquid, namely this medicinal liquid is by weepage holes trace stream to filter membrane and until flow to vein scalp acupuncture, therefore can produce a malleation to the blood in human vas, thus realize blood return prevention effect effectively within a certain period of time.
Automatic liquid-stopping of the present invention and blood return prevention process are: when the medicinal liquid stream in medicinal liquid bottle complete to automatic liquid-stopping blood return prevention Murphy pipe after, if nursing staff fails to change bottle transfusion or removal transfusion device in time, surface tension due to filter membrane follows the gravity of medicinal liquid to reach balance, the medicinal liquid in downcomer is caused not flow, simultaneously, a small amount of debris remaining between the entrance of feed tube and the upper surface of filter cover still passes through weepage holes trace stream on filter membrane, and enter in human body through downcomer inflow vein scalp acupuncture again by filter membrane, thus the blood return prevention effect played in certain hour, until the surface tension of filter membrane reaches new balance with the gravity of medicinal liquid again, realize the effect of relative automatic liquid-stopping blood return prevention.
Embodiments of the present invention are not limited thereto, according to foregoing of the present invention, according to ordinary technical knowledge and the customary means of this area, do not departing under the present invention's above-mentioned basic fundamental thought prerequisite, the structure of the concrete form of open-celled structure of the present invention, the quantity of inlet opening, filter also has other embodiment, in addition, the setting position of automatic liquid-stopping blood return prevention Murphy pipe on transfusion device pipeline has numerous embodiments, and the pipeline that only need be arranged on more than female Luer all can realize the object of the invention; Therefore the present invention can also make the amendment of other various ways, replacement or change, all drops within rights protection scope of the present invention.
Claims (9)
1. an intelligent automatic liquid-stopping blood return prevention Murphy pipe, comprise body and be located at the dropper of body internal upper part, described body has upper interface and lower interface, upper interface is the upper port of described dropper, filter is provided with in the bottom of described body, described filter has enclosed cavity room, be provided with at described enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane of lower space, described chamber end face is vertically provided with the feed tube being communicated with described chamber upper space and body, the porch of described feed tube is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of described closed chamber has the liquid outlet as described lower interface, it is characterized in that: described chamber end face is provided with the weepage holes being communicated with described chamber upper space and body, described body is by pipe shaft, be located at top connection and the lower contact composition at pipe shaft two ends, on described, lower interface lay respectively at described on, in lower contact, the closed chamber of described filter is fastened up and down by upper cover and lower cover and forms, the upper surface periphery of described upper cover has annular boss, described chamber end face is provided with vertical short metal pipe, described feed tube and short metal pipe are all located in this annular boss, described boss is fastened in the bottom of described pipe shaft, the base circumference of described boss has flange, the lower end of described body is tightly placed in described flange circumferentially, described pipe shaft has for the air in body is discharged extraneous steam vent, in automatic vent process, the air in body is discharged extraneous by steam vent, in automatic liquid-stopping process, the residual air in body can be discharged from steam vent, during to make to flow into without medicinal liquid in body, the debris between chamber end face and feed tube entrance slowly flows across filter membrane by described weepage holes, realizes automatic liquid-stopping blood return prevention function.
2. intelligent automatic liquid-stopping blood return prevention Murphy pipe according to claim 1, it is characterized in that: described weepage holes is opened on the tube wall of this short metal pipe, contact with described chamber end face bottom the peritreme of described weepage holes and debris is discharged body completely.
3. intelligent automatic liquid-stopping blood return prevention Murphy pipe according to claim 2, it is characterized in that: the bottom of described lower cover is provided with the connection tube communicated with described lower space, the lower end mouth of pipe of described connection tube is described liquid outlet, described short metal pipe and feed tube are all positioned on the upper surface of described upper cover, the top closure of described feed tube and its tube wall is provided with open-celled structure.
4. intelligent automatic liquid-stopping blood return prevention Murphy pipe according to claim 3, it is characterized in that: described short metal pipe stretches out to be formed to the lower surface of upper cover and is positioned at the upper pipeline section of upper cover upper surface and is positioned at the lower tube section of upper cover lower surface, described lower tube section is downwards in gradually-reducing shape, and the mouth of pipe of described lower tube section presses close to the upper surface of described filter membrane as the liquid outlet of debris.
5. the intelligent automatic liquid-stopping blood return prevention Murphy pipe according to any one of Claims 1 to 4, it is characterized in that: described open-celled structure at least one inlet opening for offering along the tube wall top circumference of feed tube, the upper hole of described inlet opening is along being positioned on the top end face of described feed tube.
6. one kind uses the transfusion device of automatic liquid-stopping blood return prevention Murphy pipe described in claim 1, comprise the female Luer connected by tube for transfusion, it is characterized in that: also comprise and be arranged on female Luer with the automatic liquid-stopping blood return prevention Murphy pipe of any position of upper pipeline, described automatic liquid-stopping blood return prevention Murphy pipe comprises body and is located at the dropper of body internal upper part, described body has upper interface and lower interface, upper interface is the upper port of described dropper, filter is provided with in the bottom of described body, described filter has enclosed cavity room, be provided with at described enclosed cavity indoor horizontal and this chamber is divided into, the filter membrane of lower space, described chamber end face is vertically provided with the feed tube being communicated with described chamber upper space and body, the porch of described feed tube is provided with and utilizes surface tension of liquid to postpone to make medicinal liquid the open-celled structure flowed into, the bottom surface of described closed chamber has the liquid outlet as described lower interface, described chamber end face is provided with the weepage holes being communicated with described chamber upper space and body, described body is by pipe shaft, be located at top connection and the lower contact composition at pipe shaft two ends, on described, lower interface lay respectively at described on, in lower contact, the closed chamber of described filter is fastened up and down by upper cover and lower cover and forms, the upper surface periphery of described upper cover has annular boss, described chamber end face is provided with vertical short metal pipe, described feed tube and short metal pipe are all located in this annular boss, described boss is fastened in the bottom of described pipe shaft, the base circumference of described boss has flange, the lower end of described body is tightly placed in described flange circumferentially, described pipe shaft has for the air in body is discharged extraneous steam vent, in automatic vent process, the air in body is discharged extraneous by steam vent, in automatic liquid-stopping process, the residual air in body can be discharged from steam vent, during to make to flow into without medicinal liquid in body, the debris between chamber end face and feed tube entrance slowly flows across filter membrane by described weepage holes, realizes automatic liquid-stopping blood return prevention function.
7. transfusion device according to claim 6, it is characterized in that: described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described air filter and described Murphy pipe.
8. transfusion device according to claim 6, it is characterized in that: described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described Murphy pipe and described flow regulator.
9. transfusion device according to claim 6, it is characterized in that: described transfusion device comprises the bottle plug puncture unit, air filter, Murphy pipe, flow regulator and the vein scalp acupuncture that are connected successively by tube for transfusion from top to bottom, wherein, described female Luer is between flow regulator and vein scalp acupuncture, and described automatic liquid-stopping blood return prevention Murphy pipe is between described flow regulator and described female Luer.
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| CN201210276373.2A CN102836474B (en) | 2012-08-03 | 2012-08-03 | Intelligent automatic liquid-stopping blood return prevention Murphy pipe and transfusion device thereof |
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| CN201210276373.2A CN102836474B (en) | 2012-08-03 | 2012-08-03 | Intelligent automatic liquid-stopping blood return prevention Murphy pipe and transfusion device thereof |
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| CN102836474B true CN102836474B (en) | 2015-09-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103120811B (en) * | 2013-02-28 | 2014-09-17 | 黄陵娥 | Transfusion device capable of resisting blood return and medical infusion instrument thereof |
| CN104338216A (en) * | 2014-11-19 | 2015-02-11 | 何前国 | Sustained-release type blood return-preventing infusion apparatus |
| CN107970498B (en) * | 2016-10-21 | 2023-11-21 | 上海康德莱企业发展集团股份有限公司 | Eccentric self-exhaust dropping funnel |
| CN108888829A (en) * | 2018-05-14 | 2018-11-27 | 河南兴恒医疗用品有限公司 | The disposable accurate liquid that stops filters anti-puncture no-needle transfusion device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201814935U (en) * | 2010-10-16 | 2011-05-04 | 谢世庚 | Bubble-free drainage blood backflow prevention infusion set |
| CN202314681U (en) * | 2011-11-22 | 2012-07-11 | 肖芳 | Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube |
| CN202822283U (en) * | 2012-08-03 | 2013-03-27 | 肖芳 | Intelligent automatic liquid-stop blood return prevention Murphy's tube and infusion device using same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201814935U (en) * | 2010-10-16 | 2011-05-04 | 谢世庚 | Bubble-free drainage blood backflow prevention infusion set |
| CN202314681U (en) * | 2011-11-22 | 2012-07-11 | 肖芳 | Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube |
| CN202822283U (en) * | 2012-08-03 | 2013-03-27 | 肖芳 | Intelligent automatic liquid-stop blood return prevention Murphy's tube and infusion device using same |
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