CN102836474A - Intelligent automatic liquid-stopping blood-returning prevention Murphy tube and transfusion device including the same - Google Patents
Intelligent automatic liquid-stopping blood-returning prevention Murphy tube and transfusion device including the same Download PDFInfo
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- CN102836474A CN102836474A CN2012102763732A CN201210276373A CN102836474A CN 102836474 A CN102836474 A CN 102836474A CN 2012102763732 A CN2012102763732 A CN 2012102763732A CN 201210276373 A CN201210276373 A CN 201210276373A CN 102836474 A CN102836474 A CN 102836474A
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Abstract
The invention discloses an intelligent automatic liquid-stopping blood-returning prevention Murphy tube comprising a tube body and a dropper arranged on the lower portion in the tube body. The tube body is provided with an upper interface and a lower interface, wherein the upper interface is the upper end opening of the dropper, and the bottom of the tube body is provided with a filtering device provided with a sealed cavity chamber. A filtering film dividing the cavity chamber into upper portion space and lower portion space is horizontally arranged in the sealed cavity. The top of the cavity chamber is vertically provided with a liquid inlet pipe which communicates the upper portion space of the cavity chamber with the tube body. An entrance of the liquid inlet pipe is provided with an open hole structure which enables medicine liquid flows into the liquid inlet pipe by using surface tension of the liquid. The bottom of the sealed cavity chamber is provided with a liquid outlet serving as the lower interface. The top of the cavity chamber is provided with a leaking hole which communicates the upper portion space of the cavity chamber with the tube body. The invention further discloses a transfusion device including the automatic liquid-stopping blood-returning prevention Murphy tube. When no liquid flows into the tube body, remaining liquid between the top of the cavity chamber and the entrance of the liquid inlet pipe flows slowly through the filtering film through the leaking hole to achieve automatic liquid stopping and blood-returning prevention functions.
Description
Technical field
The present invention relates to a kind of black Fei Shi pipe, relate in particular to a kind of intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe, also relate to the transfusion device that uses this automatic solution stopping blood return prevention China ink Fei Shi pipe.
Background technology
Medical Transfusion device (promptly referring to intravenous transfusion device) is a kind of clinically common medical disposable material that is used for carrying to human vein medicinal liquid, and it generally is made up of bottle plug puncture unit, tube for transfusion (comprising upper conduit and downcomer), air filter, black Fei Shi pipe, filter, flow regulator, female luer and vein scalp acupuncture.Wherein, the main effect of black Fei Shi pipe is in infusion process, to judge the flow velocity of transfusion and produce siphonage to slow down infusion pressure.
Existing intravenous transfusion device is in infusion process; Owing to store air in tube for transfusion and the black Fei Shi pipe; Add the existence of black Fei Shi pipe siphonage, making before venipuncture must the intravital gas of emptying aforementioned tube, and this operation sequence can increase nursing staff's workload; Cause awkward defective, thereby reduce work efficiency.
In addition, after the medicinal liquid in the intravenous transfusion device has flowed, if untimely replacing medicinal liquid bottle or removal transfusion device; Medicinal liquid can flow always, when the gravitational equilibrium of the venous pressure of human body and transfusion device herb liquid, just can stop, because 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 the 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 researched and developed multiple transfusion device with automatic solution stopping function both at home and abroad, and its operation principle is: after the medicinal liquid in the black Fei Shi pipe drips off, seal the downcomer water inlet automatically in case non-return blood; Yet it can't effectively realize the purpose of blood return prevention.In addition; China authorizes patent of invention (patent No. 201020580924.0) to disclose a kind of no bubble drain blood return preventing infusion device; Its adopts drainage strip introduces a spot of debris in the black Fei Shi pipe scalp acupuncture through the mode of syphon drainage front end reaching the effect of blood return prevention, but the structural design more complicated of drainage strip, and processing technology is very loaded down with trivial details; Production cost is higher, is difficult to accomplish scale production.
Summary of the invention
First purpose of the present invention be to provide a kind of one-shot forming, processing technology simple, easy to use, can reduce production costs greatly, can large-scale production, effectively realize the intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe of non-return blood.
Second purpose of the present invention is to provide a kind of transfusion device that uses above-mentioned automatic solution stopping blood return prevention China ink Fei Shi pipe.
First purpose of the present invention realizes through following technical measures: a kind of intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe; Comprise body and be located at the dropper of body internal upper part; Said body has last interface and lower interface; Last interface is the port of said dropper, is provided with filter in the bottom of said body, and said filter has the enclosed cavity chamber; Be provided with at said enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane in upper and lower part; Vertically be provided with the feed tube that is communicated with said chamber upper space and body on the said chamber end face, the porch of said feed tube is provided with and utilizes surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow, and the bottom surface of said sealing chamber has the liquid outlet as said lower interface; It is characterized in that said chamber end face is provided with the weepage holes that is communicated with said chamber upper space and body; So that when no medicinal liquid flows in the body, the debris between chamber end face and feed tube enter the mouth slowly flows through filter membrane through said weepage holes, realizes automatic solution stopping blood return prevention function.
The present invention is not when having medicinal liquid to flow into automatic solution stopping blood return prevention China ink Fei Shi pipe; Between chamber end face and inlet opening inlet, can leave a certain amount of residual liquid; This residual liquid can't flow into filter membrane at short notice; But slowly flow into filter membrane through weepage holes, thereby and enter in the downcomer and discharge transfusion device until the vein scalp acupuncture, realize the function of automatic solution stopping blood return prevention; In addition; In medicinal liquid flows into the body of automatic solution stopping blood return prevention China ink Fei Shi pipe; Because the surface tension effects of the open-celled structure on the feed tube makes medicinal liquid can not soak filter membrane at short notice; Thereby can enter in the downcomer until vein scalp acupuncture discharge transfusion device, to realize self-bleeding function through filter membrane so that manage intravital air.The present invention can save the manual deflated operation link of nursing staff, reduces workload, and is easy to use, increases work efficiency; And one-shot forming of the present invention, processing technology are simple, can reduce cost greatly, accomplish scale production.
As a kind of improvement of the present invention, on said chamber end face, be provided with vertical metal short tube, said weepage holes is opened on the tube wall of this metal short tube, and the peritreme of said weepage holes bottom contacts with said chamber end face and debris is discharged body fully.Making has the metal short tube of weepage holes and on technology, realizes easily.
As one embodiment of the present invention; The sealing chamber of said filter is fastened up and down by loam cake and lower cover and forms; The bottom of said lower cover is provided with the connection tube that communicates with said lower space; The lower end mouth of pipe of said connection tube is said liquid outlet, and said metal short tube and feed tube all are positioned on the upper surface of said loam cake, and the top closure of said feed tube and its tube wall are provided with open-celled structure.
As further improvement of the present invention; Said metal short tube stretches out formation last pipeline section that is positioned at cover upper surface and the lower tube section that is positioned at the loam cake lower surface to the lower surface of loam cake; Said lower tube section is gradually-reducing shape downwards, and the mouth of pipe of said lower tube section is pressed close to the upper surface of said filter membrane as the liquid outlet of debris.
The present invention can have following embodiment, said open-celled structure at least one inlet opening for being offered along the tube wall top circumference of feed tube, and the last hole of said inlet opening is along being positioned on the top end face of said feed tube.
Body according to the invention is made up of pipe shaft, the top connection of being located at the pipe shaft two ends and lower contact; Said upper and lower interface lays respectively on the said upper and lower joint; The upper surface periphery of said loam cake has annular boss, and said feed tube and metal short tube all are located in this annular boss, and said boss is fastened in the bottom of said pipe shaft; The base circumference of said boss has flange, and the lower end of said body tightly is placed on the circumference of said flange.
The present invention can do following further improvement, has on the said pipe shaft to be used for the intravital air of pipe is discharged extraneous steam vent.In automatic solution stopping process, manage intravital residual air and can discharge from steam vent.
As optimal way of the present invention, said metal short tube is processed by steel, and as other embodiment, the material of metal short tube also can be selected metal materials such as ferrum is gold-plated, ferrum is silver-plated for use.
Second purpose of the present invention realizes through following technical measures: a kind of transfusion device that uses above-mentioned automatic solution stopping blood return prevention China ink Fei Shi pipe; Comprise the female luer that connects by tube for transfusion; It is characterized in that also comprising and be arranged on female luer with the black Fei Shi pipe of the automatic solution stopping blood return prevention of any position of upper pipeline; Said automatic solution stopping blood return prevention China ink Fei Shi manages the dropper that comprises body and be located at the body internal upper part, and said body has last interface and lower interface, and last interface is the port of said dropper; Bottom at said body is provided with filter; Said filter has the enclosed cavity chamber, is provided with at said enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane in upper and lower part, vertically is provided with the feed tube that is communicated with said chamber upper space and body on the said chamber end face; The porch of said feed tube is provided with and utilizes surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; The bottom surface of said sealing chamber has the liquid outlet as said lower interface, and said chamber end face is provided with the weepage holes that is communicated with said chamber upper space and body, so that in the body during no medicinal liquid inflow; Debris between chamber end face and feed tube inlet slowly flows through filter membrane through said weepage holes, realizes automatic solution stopping blood return prevention function.
As one embodiment of the present invention; Said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said air filter and said black Fei Shi pipe.
As another embodiment of the invention; Said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said black Fei Shi pipe and said flow regulator.
As other embodiment of the present invention; Said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said flow regulator and said female luer.
Compared with prior art, the present invention has following significant effect:
⑴ when flowed when the medicinal liquid in the medicinal liquid bottle, promptly do not have medicinal liquid to flow into the automatic solution stopping blood return prevention China ink of the present invention Fei Shi pipe, between filter end face and feed tube inlet, can leave a certain amount of residual liquid; This residual liquid can't flow into filter membrane at short notice, but slowly flows into filter membrane through weepage holes, thereby and enter in the downcomer and discharge transfusion device until the vein scalp acupuncture; Realize automatic within a certain period of time solution stopping blood return prevention function; The blood back phenomenon of having avoided the nursing staff to fail in time to change infusion bottle or removal transfusion device and having occurred is saved the manual deflated operation link of nursing staff, reduces workload; Easy to use, increase work efficiency.
⑵ manage when medicinal liquid flows into the automatic solution stopping blood return prevention China ink of the present invention Fei Shi; Because the surface tension effects of the open-celled structure on the feed tube makes medicinal liquid can not soak filter membrane at short notice, thereby, realize self-bleeding function so that managing intravital air can enter in the downcomer through filter membrane and discharge transfusion device until the vein scalp acupuncture; Save the manual deflated operation link of nursing staff; Reduce workload, easy to use, increase work efficiency.
⑶ when changing the medicinal liquid bottle; After pushing automatic solution stopping blood return prevention China ink Fei Shi pipe; Because the suction function that produces makes medicinal liquid pass through feed tube and get in the filter that the air in the filter can be discharged through steam vent, therefore avoided when changing second bottle liquid medicine bottle liquid to stop the phenomenon of dripping.
⑷ the one-shot forming of the automatic solution stopping blood return prevention China ink of the present invention Fei Shi pipe, processing technology is simple, can reduce cost greatly, can accomplish scale production.
⑸ of the present invention simple in structure, and the suitability is strong, can be adaptable across medical institutions such as clinic, hospitals.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed description.
Fig. 1 is the structural representation of transfusion device of the present invention;
Fig. 2 is the structural representation of the automatic solution stopping blood return prevention China ink of the present invention Fei Shi pipe;
Fig. 3 is the structural representation (height of annular boss reduces) of loam cake;
Fig. 4 is the perspective diagram of lower cover.
The specific embodiment
Embodiment 1
Shown in Fig. 2～4, be a kind of intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe 1 of the present invention, comprise body and be located at the dropper 5 of body internal upper part; Body has last interface and lower interface, and last interface is the port of dropper 5, is provided with filter 6 in the bottom of body; Filter 6 has the sealing chamber; Be provided with at the enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane 9 in upper and lower part, vertically be provided with the feed tube 11 that is communicated with chamber upper space and body on the chamber end face, inlet 12 places of feed tube 11 are provided with and utilize surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; The bottom surface of sealing chamber has the liquid outlet 82 as lower interface; The chamber end face is provided with the weepage holes 20 that is communicated with chamber upper space and body, so that in the body during no medicinal liquid inflow, and the debris between chamber end face and feed tube enter the mouth; Slowly flow through filter membrane through weepage holes, realize the function of automatic solution stopping blood return prevention.
On the chamber end face, be provided with vertical metal short tube 30, metal short tube 30 is processed by steel, and weepage holes 20 is opened on the tube wall of this metal short tube 30, and in the present embodiment, weepage holes 20 forms circular peritreme along the mouth of pipe of metal short tube 30 back of keeping straight on downwards.The peritreme bottom of weepage holes 20 contacts with the chamber end face and debris is discharged body fully; The sealing chamber of filter 6 is fastened up and down by loam cake 7 and lower cover 8 and forms; The bottom of lower cover 8 is provided with the connection tube 81 that communicates with the lower space of filter 6; The lower end mouth of pipe of connection tube 81 is liquid outlet 82; Metal short tube 30 all is positioned on the upper surface of loam cake 7 with feed tube 11, and the top closure of feed tube 11 and its tube wall are provided with open-celled structure.In the present embodiment, the top closure of feed tube 11 and open-celled structure are positioned on its tube wall, three inlet openings (in figure do not draw) of open-celled structure for being offered along the tube wall top circumference of feed tube 11, and the last hole of inlet opening is along being positioned on the top end face of feed tube 11.
Metal short tube 30 stretches out formation last pipeline section that is positioned at loam cake 7 upper surfaces and the lower tube section that is positioned at the loam cake lower surface to the lower surface of loam cake 7; Lower tube section is gradually-reducing shape downwards; Be similar to cone, the mouth of pipe of lower tube section is pressed 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 of being located at the pipe shaft two ends and lower contact; Upper and lower interface lays respectively on the upper and lower joint, and is as shown in Figure 3, and the upper surface periphery of loam cake 7 has annular boss; Feed tube 11 all is located in this annular boss with metal short tube 30; Boss is fastened in the bottom of pipe shaft, and the base circumference of boss has flange 72, and the lower end of body tightly is placed on the circumference of flange 72.Have on the pipe shaft and be used for the intravital air of pipe is discharged extraneous steam vent 50.In the automatic vent process, manage intravital air and discharge extraneous through steam vent.
As shown in Figure 1; A kind of transfusion device that uses above-mentioned automatic solution stopping blood return prevention China ink Fei Shi pipe; Comprise the female luer 16 that connects by tube for transfusion; Also comprise being arranged on automatic solution stopping blood return prevention China ink Fei Shi pipe 1 (have filter) of female luer 16 with any position of upper pipeline, in the present embodiment, transfusion device comprises bottle plug puncture unit 3, air filter 4, black Fei Shi pipe 40 (the black Fei Shi pipe of no filter), flow regulator 14 and the vein scalp acupuncture 17 that connects successively through tube for transfusion (comprising connecting duct 10, upper conduit 2 and downcomer 15) from top to bottom; Female luer 16 is between flow regulator 14 and vein scalp acupuncture 17; Wherein, black Fei Shi pipe 40 comprises body and is located at the dropper 51 of body internal upper part, has dosing hole 18 on the tube wall top of body; Automatically solution stopping blood return prevention China ink Fei Shi pipe 1 is between black Fei Shi pipe 40 and flow regulator 14.Automatic solution stopping blood return prevention China ink Fei Shi pipe 1 comprises body and is located at the dropper 5 of body internal upper part; Body has last interface and lower interface, and last interface is the port of dropper 5, is provided with filter 6 in the bottom of body; Filter 6 has the sealing chamber; Be provided with at the enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane 9 in upper and lower part, vertically be provided with the feed tube 11 that is communicated with chamber upper space and body on the chamber end face, the porch of feed tube 11 is provided with and utilizes surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; The bottom surface of sealing chamber has the liquid outlet as lower interface; The chamber end face is provided with the weepage holes 20 that is communicated with chamber upper space and body, so that in the body during no medicinal liquid inflow, and the debris between chamber end face and feed tube enter the mouth; Slowly flow through filter membrane through weepage holes, realize the function of automatic solution stopping blood return prevention.
Embodiment 2
The transfusion device difference is among present embodiment (not drawing among the figure) and the embodiment 1: solution stopping blood return prevention China ink Fei Shi pipe (having filter) is positioned between air filter and the black Fei Shi pipe (the black Fei Shi pipe of no filter) automatically.
Embodiment 3
The transfusion device difference is among present embodiment (not drawing among the figure) and the embodiment 1: solution stopping blood return prevention China ink Fei Shi pipe (having filter) is between flow regulator and female luer automatically.
Automatic solution stopping blood return prevention principle of the present invention is: automatically the debris in the solution stopping blood return prevention China ink Fei Shi pipe (between the loam cake of the inlet of feed tube and filter) flows on the filter membrane through the weepage holes trace lentamente, thereby plays solution stopping and blood return prevention effect; When changing the medicinal liquid bottle; After pushing automatic solution stopping blood return prevention China ink Fei Shi pipe; Because the suction function that produces makes medicinal liquid pass through feed tube and gets in the filter; Continue transfusion, the air in the filter can be discharged through steam vent, has therefore avoided when changing second bottle liquid medicine bottle liquid to stop the phenomenon of dripping; In addition; In the time can not in time changing the medicinal liquid bottle; Owing to remain in the gravity drainage effect of a small amount of medicinal liquid in inlet below of feed tube; Promptly this medicinal liquid to filter membrane and until flowing to the vein scalp acupuncture, therefore can produce a malleation to the blood in the human vas through the weepage holes trace stream, thereby realizes within a certain period of time blood return prevention effect effectively.
Automatic solution stopping of the present invention and blood return prevention process are: after the medicinal liquid in the medicinal liquid bottle has flowed to automatic solution stopping blood return prevention in the black Fei Shi pipe; If the nursing staff fails in time to change bottle transfusion or removal transfusion device; Because the surface tension of filter membrane reaches balance with the gravity of medicinal liquid; Cause the medicinal liquid in the downcomer not flow, simultaneously, remaining small amount of residual liquid still passes through the weepage holes trace stream to filter membrane between the inlet of feed tube and the upper surface of filter cover; And pass through filter membrane again through in the downcomer inflow vein scalp acupuncture entering human body; Thereby play the blood return prevention effect in the certain hour, reach new balance with the gravity of medicinal liquid once more, realize the effect of solution stopping blood return prevention relatively automatically until the surface tension of filter membrane.
Embodiment of the present invention is not limited thereto; According to foregoing of the present invention; Ordinary skill knowledge and customary means according to this area; Do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite, the concrete form of open-celled structure of the present invention, the quantity of inlet opening, structure of filter also have other embodiment, in addition; Automatically the be provided with position of solution stopping blood return prevention China ink Fei Shi pipe on the transfusion device pipeline has numerous embodiments, only need be arranged on the above pipeline of female luer and all can realize the object of the invention; Therefore the present invention can also make modification, replacement or the change of other various ways, all drops within the rights protection scope of the present invention.
Claims (10)
1. an intelligent automatic solution stopping blood return prevention China ink Fei Shi manages; Comprise body and be located at the dropper of body internal upper part, said body has last interface and lower interface, and last interface is the port of said dropper; Bottom at said body is provided with filter; Said filter has the enclosed cavity chamber, is provided with at said enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane in upper and lower part, vertically is provided with the feed tube that is communicated with said chamber upper space and body on the said chamber end face; The porch of said feed tube is provided with and utilizes surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; The bottom surface of said sealing chamber has the liquid outlet as said lower interface, it is characterized in that: said chamber end face is provided with the weepage holes that is communicated with said chamber upper space and body, so that in the body during no medicinal liquid inflow; Debris between chamber end face and feed tube inlet slowly flows through filter membrane through said weepage holes, realizes automatic solution stopping blood return prevention function.
2. intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe according to claim 1; It is characterized in that: on said chamber end face, be provided with vertical metal short tube; Said weepage holes is opened on the tube wall of this metal short tube, and the peritreme of said weepage holes bottom contacts with said chamber end face and debris is discharged body fully.
3. intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe according to claim 2; It is characterized in that: the sealing chamber of said filter is fastened up and down by loam cake and lower cover and forms; The bottom of said lower cover is provided with the connection tube that communicates with said lower space; The lower end mouth of pipe of said connection tube is said liquid outlet, and said metal short tube and feed tube all are positioned on the upper surface of said loam cake, and the top closure of said feed tube and its tube wall are provided with open-celled structure.
4. intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe according to claim 3; It is characterized in that: said metal short tube stretches out formation last pipeline section that is positioned at cover upper surface and the lower tube section that is positioned at the loam cake lower surface to the lower surface of loam cake; Said lower tube section is gradually-reducing shape downwards, and the mouth of pipe of said lower tube section is pressed close to the upper surface of said filter membrane as the liquid outlet of debris.
5. according to each described intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe of claim 1～4; It is characterized in that: said open-celled structure at least one inlet opening for being offered along the tube wall top circumference of feed tube, the last hole of said inlet opening is along being positioned on the top end face of said feed tube; Have on the said pipe shaft and be used for the intravital air of pipe is discharged extraneous steam vent.
6. intelligent automatic solution stopping blood return prevention China ink Fei Shi pipe according to claim 5; It is characterized in that: said body is made up of pipe shaft, the top connection of being located at the pipe shaft two ends and lower contact; Said upper and lower interface lays respectively on the said upper and lower joint; The upper surface periphery of said loam cake has annular boss, and said feed tube and metal short tube all are located in this annular boss, and said boss is fastened in the bottom of said pipe shaft; The base circumference of said boss has flange, and the lower end of said body tightly is placed on the circumference of said flange.
7. transfusion device that uses the said automatic solution stopping blood return prevention China ink of claim 1 Fei Shi pipe; Comprise the female luer that connects by tube for transfusion; It is characterized in that: also comprise being arranged on the automatic solution stopping blood return prevention China ink Fei Shi pipe of female luer with any position of upper pipeline; Said automatic solution stopping blood return prevention China ink Fei Shi manages the dropper that comprises body and be located at the body internal upper part, and said body has last interface and lower interface, and last interface is the port of said dropper; Bottom at said body is provided with filter; Said filter has the enclosed cavity chamber, is provided with at said enclosed cavity indoor horizontal this chamber is divided into the spatial filter membrane in upper and lower part, vertically is provided with the feed tube that is communicated with said chamber upper space and body on the said chamber end face; The porch of said feed tube is provided with and utilizes surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; The bottom surface of said sealing chamber has the liquid outlet as said lower interface, and said chamber end face is provided with the weepage holes that is communicated with said chamber upper space and body, so that in the body during no medicinal liquid inflow; Debris between chamber end face and feed tube inlet slowly flows through filter membrane through said weepage holes, realizes automatic solution stopping blood return prevention function.
8. transfusion device according to claim 7; It is characterized in that: said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said air filter and said black Fei Shi pipe.
9. transfusion device according to claim 7; It is characterized in that: said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said black Fei Shi pipe and said flow regulator.
10. transfusion device according to claim 7; It is characterized in that: said transfusion device comprises bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator and the vein scalp acupuncture that connects successively through tube for transfusion from top to bottom; Wherein, Said female luer is between flow regulator and vein scalp acupuncture, and said automatic solution stopping blood return prevention China ink Fei Shi pipe is between said flow regulator and said female luer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN102836474A true CN102836474A (en) | 2012-12-26 |
| CN102836474B CN102836474B (en) | 2015-09-23 |
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| CN201210276373.2A Expired - Fee Related 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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| CN103120811A (en) * | 2013-02-28 | 2013-05-29 | 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 |
| CN107970498A (en) * | 2016-10-21 | 2018-05-01 | 上海康德莱企业发展集团股份有限公司 | It is a kind of eccentric from 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 |
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| CN107970498A (en) * | 2016-10-21 | 2018-05-01 | 上海康德莱企业发展集团股份有限公司 | It is a kind of eccentric from exhaust dropping funnel |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102836474B (en) | 2015-09-23 |
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