CN202314681U - Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube - Google Patents
Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube Download PDFInfo
- Publication number
- CN202314681U CN202314681U CN2011204664910U CN201120466491U CN202314681U CN 202314681 U CN202314681 U CN 202314681U CN 2011204664910 U CN2011204664910 U CN 2011204664910U CN 201120466491 U CN201120466491 U CN 201120466491U CN 202314681 U CN202314681 U CN 202314681U
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- feed tube
- tube
- filter
- exhaustor
- loam cake
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Abstract
The utility model discloses an automatic exhausting and blood return preventing Murphy's tube, which comprises a tube body and a dropper arranged on the upper part in the tube body, wherein the tube body is provided with an upper interface and a lower interface, and the upper interface is the upper port of the dropper; a filter is arranged at the bottom of the tube body, the filter is provided with a closed chamber, and a transverse filter membrane is arranged in the chamber; a liquid inlet tube and an exhaust tube which are communicated with the closed chamber and the tube body are vertically arranged on the top of the chamber, and an open pore structure into which medicinal liquid slowly flows by using the surface tension of the liquid is arranged at the inlet of the liquid inlet tube; the bottom of the closed chamber is provided with a liquid outlet serving as the lower interface; and the orifice of the exhaust tube is higher than the inlet of the liquid inlet tube. The utility model also discloses an infusion apparatus using the Murphy's tube. Through the open pore structure, the medicinal liquid cannot moisten the filter membrane in short time, so that air in the tube body can be exhausted into a lower guide tube through the filter membrane to enter a venous scalp needle, and an automatic exhausting function is realized.
Description
Technical field
This utility model relates to medical instruments field, is specifically related to a kind of black Fei Shi pipe of automatic exhausting anti-blood backflow, also relates to the transfusion device that uses this 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.
The utility model content
First purpose of this utility model is to provide that a kind of one-shot forming, processing technology are simple, easy to use, the black Fei Shi pipe of the automatic exhausting anti-blood backflow that can reduce production costs, effectively realize non-return blood greatly.
First purpose of this utility model realizes through following technical measures: a kind of black Fei Shi pipe of automatic exhausting anti-blood backflow; 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, it is characterized in that being provided with filter in the bottom of said body; Said filter has the enclosed cavity chamber; In this chamber, be provided with horizontal filter membrane, said chamber end face vertically is provided with feed tube and the exhaustor that is communicated with said sealing chamber and body, and 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 the height of the said exhaustor mouth of pipe is higher than the height of said feed tube inlet.
This utility model is when work, and medicinal liquid flows in the body of black 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 through filter membrane so that manage intravital air; To realize self-bleeding function, save the manual deflated operation link of nursing staff, can reduce workload; Easy to use, increase work efficiency; And this utility model one-shot forming, processing technology are simple.
A kind of embodiment as this utility model; The sealing chamber of said filter is fastened up and down by loam cake and lower cover and forms; Said liquid outlet is positioned at the bottom of said lower cover; Said feed tube and exhaustor 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 a kind of improvement of this utility model, the upper surface of said loam cake is provided with weepage holes, and the orifice diameter of said weepage holes is dwindled by upper surface to the lower surface of loam cake gradually, and the upper surface of said filter membrane is pressed close in the aperture, lower end of said weepage holes.
As the preferred implementation of this utility model, said weepage holes is positioned at the centre of said loam cake, and said feed tube and exhaustor are oppositely arranged, and said weepage holes is between said feed tube and the exhaustor.
As the embodiment of this utility model, 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.
The said body of this utility model 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 exhaustor 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 is positioned on the said flange.
This utility model can be done following further improvement, has on the said pipe shaft to be used for the intravital air of pipe is discharged extraneous steam vent; Also be provided with the dosing hole that is used for increasing separately medicinal liquid on the said pipe shaft.In the automatic vent process, manage intravital air on one side in the exhaustor via downcomer etc. until discharging from the vein scalp acupuncture, on one side discharge through steam vent extraneous; And rescuing critical sufferer etc. in emergency circumstances, and can be directly from the dosing of dosing hole, thus gain time for rescuing sufferer.
Second purpose of this utility model is to provide a kind of transfusion device that uses above-mentioned black Fei Shi pipe.
Second purpose of this utility model realizes through following technical measures: a kind of transfusion device that uses above-mentioned black Fei Shi pipe; Comprise the bottle plug puncture unit, air filter, black Fei Shi pipe, flow regulator, female luer and the vein scalp acupuncture that connect successively through tube for transfusion from top to bottom; Wherein, said black Fei Shi pipe comprises body and is located at the dropper of body internal upper part that said body has last interface and lower interface; Last interface is the port of said dropper; It is characterized in that being provided with filter in the bottom of said body, said filter has the enclosed cavity chamber, in this chamber, is provided with horizontal filter membrane; Said chamber end face vertically is provided with feed tube and the exhaustor that is communicated with said sealing chamber and body; 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, and the height of the said exhaustor mouth of pipe is higher than the height of said feed tube inlet.
Embodiment as this utility model; The sealing chamber of said filter is fastened up and down by loam cake and lower cover and forms; Said liquid outlet is positioned at the bottom of said lower cover; Said feed tube and exhaustor 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; The upper surface of said loam cake is provided with weepage holes, and the orifice diameter of said weepage holes is dwindled by upper surface to the lower surface of loam cake gradually, and the upper surface of said filter membrane is pressed close in the aperture, lower end of said weepage holes.
The said open-celled structure of this utility model 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.
Compared with prior art, the utlity model has following significant effect:
(1) the body inside exhaust pipe and the feed tube of this utility model China ink Fei Shi pipe; On feed tube, be provided with and utilize surface tension of liquid so that medicinal liquid is postponed the open-celled structure of inflow; Can realize the automatic vent function, therefore save the manual deflated operation link of nursing staff, reduce workload; Easy to use, improved work efficiency greatly.
(2) this utility model covers on filter and is provided with weepage holes; When the nursing staff does not in time change medicinal liquid bottle or removal transfusion device; Remaining a small amount of medicinal liquid between the inlet opening of feed tube and the filter upper surface can slowly splash in the human body through this hole, reaches the effect of non-return blood within a certain period of time.
(3) steam vent of this utility model can be in the automatic vent process be discharged the air in the black Fei Shi pipe extraneous, and is rescuing critical sufferer etc. in emergency circumstances, can be directly from the dosing of dosing hole, and easy to use, gain time for the rescue sufferer simultaneously.
(4) the black Fei Shi pipe one-shot forming of this utility model, so processing technology is simple, can accomplish scale production.
(5) this utility model is 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 this utility model is done further to specify.
Fig. 1 is the structural representation of this utility model transfusion device;
Fig. 2 is the structural representation of this utility model China ink Fei Shi pipe;
Fig. 3 is the schematic top plan view of loam cake;
Fig. 4 is the perspective diagram of lower cover.
The specific embodiment
Shown in Fig. 2～4, be the black Fei Shi pipe 1 of a kind of automatic exhausting anti-blood backflow of this utility model, comprise body and be located at the dropper 5 of body internal upper part; Body has last interface and lower interface; Last interface is the port of dropper 5, is provided with filter 6 in the bottom of body, and filter 6 comprises loam cake 7, lower cover 8 and filter membrane 9 (referring to Fig. 4); Loam cake 7 and lower cover 8 fasten up and down and constitute the sealing chamber; It is indoor that filter membrane 9 is horizontally installed on enclosed cavity, and the bottom of lower cover 8 has the liquid outlet as lower interface, vertically is provided with the feed tube 11 and exhaustor 10 that are communicated with sealing chamber and body on the upper surface of loam cake 7; 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 height of exhaustor 10 mouths of pipe is higher than the height of feed tube 11 inlets, and in the present embodiment, the top closure of feed tube 11 and open-celled structure are positioned on its tube wall; Three inlet openings 12 of open-celled structure for being offered along the tube wall top circumference of feed tube 11, the last hole of inlet opening 12 is along being positioned on the top end face of feed tube 11.
Referring to Fig. 3, the centre of the upper surface of loam cake 7 is provided with weepage holes 13, and feed tube 11 is oppositely arranged with exhaustor 10, and weepage holes 13 is between feed tube 11 and the exhaustor 12.The orifice diameter of weepage holes 13 is dwindled by upper surface to the lower surface of loam cake 7 gradually, and the upper surface of filter membrane 9 is pressed close in the aperture, lower end of weepage holes 13.
In the present embodiment; Body is made up of pipe shaft, the top connection of being located at the pipe shaft two ends and lower contact, and upper and lower interface lays respectively on the upper and lower joint, and the upper surface periphery of loam cake 7 has annular boss; Feed tube 11 all is located in this annular boss with exhaustor 10; Boss is fastened in the bottom of pipe shaft, and the base circumference of boss has flange, and the lower end of body is positioned on the flange.
Have on the pipe shaft and be used for the intravital air of pipe is discharged extraneous steam vent 19; Also be provided with the dosing hole 18 that is used for increasing separately medicinal liquid on the pipe shaft.In the automatic vent process, manage intravital air on one side in the exhaustor via downcomer etc. until discharging from the vein scalp acupuncture, on one side discharge through steam vent extraneous; And rescuing critical sufferer etc. in emergency circumstances, and can be directly from the dosing of dosing hole, thus gain time for rescuing sufferer.
As shown in Figure 1; A kind of transfusion device that uses above-mentioned black Fei Shi pipe comprises the bottle plug puncture unit 3, air filter 4, black Fei Shi pipe 1, flow regulator 14, female luer 16 and the vein scalp acupuncture 17 that connect successively through tube for transfusion (comprising upper conduit 2 and downcomer 15) from top to bottom.
The operation principle of this utility model is:
(1) automatic vent principle: in the time of in medicinal liquid flows into black Fei Shi pipe; Because the capillary effect of inlet opening causes liquid not flow to immediately on the filter membrane, at this moment on the feed tube tube wall; When the medicinal liquid in the China ink Fei Shi pipe holds the inlet opening position of feed tube; Make air flow to the vein scalp acupuncture with the gas emptying through filter, exsiccant filter membrane, downcomer, reach self-bleeding effect, can begin transfusion this moment.
(2) non-return blood principle: when changing bottle; Behind the extruded ink Fei Shi pipe, because the suction function in the black Fei Shi pipe makes medicinal liquid get between the inlet opening of the mouth of pipe and feed tube of exhaustor, medicinal liquid gets in the filter through feed tube; Continue transfusion then; Because the mouth of pipe of exhaustor is higher than the inlet opening of feed tube, the air in the filter can get in the black Fei Shi pipe through exhaustor, and the phenomenon that can not cause second bottle of liquid to stop dripping like this takes place; In addition; When the nursing staff can not in time change bottle; Owing to remain in the gravity drainage effect of a small amount of medicinal liquid in inlet opening below of feed tube; This medicinal liquid is through crossing weepage holes and slowly flow on the filter membrane and until flowing to the vein scalp acupuncture, thereby the blood in the human vas is produced a malleation, reaches within a certain period of time effectively blood return prevention effect.
The use of this utility model is:
(1) automatic vent process: after bottle plug puncture unit inserted the medicinal liquid bottle; Air filter makes medicinal liquid communicate with ambient atmosphere; Medicinal liquid is flowing in the black Fei Shi pipe through upper conduit and dropper under the self gravitation effect, its capillary effect when flowing the inlet opening on the feed tube tube wall owing to medicinal liquid, and medicinal liquid can not soak filter membrane immediately; Air in so black Fei Shi pipe can be arranged into through exsiccant filter membrane and discharge until the vein scalp acupuncture in the downcomer; After the medicinal liquid face in the black Fei Shi pipe did not have the inlet opening of feed tube, the surface tension of medicinal liquid was inoperative, and medicinal liquid produces siphonage to be caused in its inflow filter; And through filter membrane and downcomer until flowing into the vein scalp acupuncture, whole automatic vent process completion; Then, the medicinal liquid bottle that begins to puncture of can sterilizing is infused, and regulates transfusion speed with flow regulator.
(2) automatic solution stopping and blood return prevention process: after in the medicinal liquid in the medicinal liquid bottle has flowed extremely black Fei Shi pipe; When the nursing staff fails in time to change bottle transfusion or removal transfusion device,, cause the medicinal liquid in the downcomer not flow because the surface tension of filter membrane follows the gravity of medicinal liquid to reach balance; Simultaneously; A small amount of medicinal liquid remaining between the upper surface of the inlet opening of feed tube to loam cake still drips on the filter membrane through weepage holes lentamente, and flows in the vein scalp acupuncture entering human body through downcomer, thereby reaches the blood return prevention effect in the certain hour; Surface tension until filter membrane is reached new balance with the gravity of medicinal liquid once more, realizes the effect of solution stopping relatively automatically.
The embodiment of this utility model is not limited thereto; Foregoing according to this utility model; According to the ordinary skill knowledge and the customary means of this area, do not breaking away under the above-mentioned basic fundamental thought of this utility model prerequisite, the concrete form of the open-celled structure of this utility model, the quantity of inlet opening and structure of filter also have other embodiment; Therefore the present invention can also make modification, replacement or the change of other various ways, all drops within this utility model rights protection scope.
Claims (10)
1. the black Fei Shi of an automatic exhausting anti-blood backflow manages (1); Comprise body and be located at the dropper (5) of body internal upper part; Said body has last interface and lower interface, and last interface is the port of said dropper (5), it is characterized in that: be provided with filter (6) in the bottom of said body; Said filter (6) has the sealing chamber; In this chamber, be provided with horizontal filter membrane (9), said chamber end face vertically is provided with the feed tube (11) and exhaustor (10) that is communicated with said sealing chamber and body, and the porch of said 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 said sealing chamber has the liquid outlet as said lower interface, and the height of said exhaustor (10) mouth of pipe is higher than the height of said feed tube (11) inlet.
2. the black Fei Shi of automatic exhausting anti-blood backflow according to claim 1 manages; It is characterized in that: the sealing chamber of said filter (6) is fastened up and down by loam cake (7) and lower cover (8) and forms; Said liquid outlet is positioned at the bottom of said lower cover (8); Said feed tube (11) all is positioned on the upper surface of said loam cake (7) with exhaustor (10), and top closure and its tube wall of said feed tube (11) are provided with open-celled structure.
3. the black Fei Shi of automatic exhausting anti-blood backflow according to claim 2 manages; It is characterized in that: the upper surface of said loam cake (7) is provided with weepage holes (13); The orifice diameter of said weepage holes (13) is dwindled by upper surface to the lower surface of loam cake (7) gradually, and the upper surface of said filter membrane (9) is pressed close in the aperture, lower end of said weepage holes (13).
4. the black Fei Shi of automatic exhausting anti-blood backflow according to claim 3 manages; It is characterized in that: said weepage holes (13) is positioned at the centre of said loam cake (7); Said feed tube (11) is oppositely arranged with exhaustor (10), and said weepage holes (13) is between said feed tube (11) and the exhaustor (10).
5. the black Fei Shi according to each described automatic exhausting anti-blood backflow of claim 1～4 manages; It is characterized in that: said open-celled structure at least one inlet opening (12) for being offered along the tube wall top circumference of feed tube (11), the last hole of said inlet opening (12) is along being positioned on the top end face of said feed tube (11).
6. the black Fei Shi of automatic exhausting anti-blood backflow according to claim 5 manages; 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 (7) has annular boss, and said feed tube (11) all is located in this annular boss with exhaustor (10), 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 is positioned on the said flange.
7. the black Fei Shi pipe of automatic exhausting anti-blood backflow according to claim 6 is characterized in that: have the steam vent (19) that is used for the intravital air of pipe is discharged the external world on the said pipe shaft; Also be provided with the dosing hole (18) that is used for increasing separately medicinal liquid on the said pipe shaft.
8. transfusion device that uses the said automatic exhausting anti-blood backflow of claim 1 China ink Fei Shi pipe; Comprise that the bottle plug puncture unit (3), air filter (4), the black Fei Shi that connect successively through tube for transfusion from top to bottom manage (1), flow regulator (14), female luer (16) and vein scalp acupuncture (17); Wherein, Said black Fei Shi pipe (1) comprises body and is located at the dropper (5) of body internal upper part; Said body has last interface and lower interface, and last interface is the port of said dropper (5), it is characterized in that: be provided with filter (6) in the bottom of said body; Said filter (6) has the sealing chamber; In this chamber, be provided with horizontal filter membrane (9), said chamber end face vertically is provided with the feed tube (11) and exhaustor (10) that is communicated with said sealing chamber and body, and the porch of said 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 said sealing chamber has the liquid outlet as said lower interface, and the height of said exhaustor (10) mouth of pipe is higher than the height of said feed tube (11) inlet.
9. transfusion device according to claim 8; It is characterized in that: the sealing chamber of said filter (6) is fastened up and down by loam cake (7) and lower cover (8) and forms; Said liquid outlet is positioned at the bottom of said lower cover (8); Said feed tube (11) all is positioned on the upper surface of said loam cake (7) with exhaustor (10), and top closure and its tube wall of said feed tube (11) are provided with open-celled structure; The upper surface of said loam cake (7) is provided with weepage holes (13), and the orifice diameter of said weepage holes (13) is dwindled by upper surface to the lower surface of loam cake (7) gradually, and the upper surface of said filter membrane (9) is pressed close in the aperture, lower end of said weepage holes (13).
10. transfusion device according to claim 9; It is characterized in that: said open-celled structure at least one inlet opening (12) for being offered along the tube wall top circumference of feed tube (11), the last hole of said inlet opening (12) is along being positioned on the top end face of said feed tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204664910U CN202314681U (en) | 2011-11-22 | 2011-11-22 | Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204664910U CN202314681U (en) | 2011-11-22 | 2011-11-22 | Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube |
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| Publication Number | Publication Date |
|---|---|
| CN202314681U true CN202314681U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204664910U Expired - Fee Related CN202314681U (en) | 2011-11-22 | 2011-11-22 | Automatic exhausting and blood return preventing Murphy's tube and infusion apparatus using Murphy's tube |
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| Country | Link |
|---|---|
| CN (1) | CN202314681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836474A (en) * | 2012-08-03 | 2012-12-26 | 肖芳 | Intelligent automatic liquid-stopping blood-returning prevention Murphy tube and transfusion device including the same |
-
2011
- 2011-11-22 CN CN2011204664910U patent/CN202314681U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836474A (en) * | 2012-08-03 | 2012-12-26 | 肖芳 | Intelligent automatic liquid-stopping blood-returning prevention Murphy tube and transfusion device including the same |
| CN102836474B (en) * | 2012-08-03 | 2015-09-23 | 肖芳 | Intelligent automatic liquid-stopping blood return prevention Murphy pipe and transfusion device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151122 |
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| EXPY | Termination of patent right or utility model |