CN212016335U - Injection line and injection line assembly - Google Patents
Injection line and injection line assembly Download PDFInfo
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- CN212016335U CN212016335U CN202020069019.2U CN202020069019U CN212016335U CN 212016335 U CN212016335 U CN 212016335U CN 202020069019 U CN202020069019 U CN 202020069019U CN 212016335 U CN212016335 U CN 212016335U
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Abstract
The utility model discloses an injection pipeline and injection pipeline subassembly. Wherein, the injection pipeline comprises a liquid taking branch, a cleaning branch and a liquid conveying branch; the infusion branch road includes the transfer line, connects the connector of transfer line and connection the malleation of connector connects, get the liquid branch road with wash the branch road all connect in the transfer line, wash the branch road with it all is equipped with the three-way valve to get the liquid branch road, the three-way valve is connected with the syringe, in order to pass through the syringe carries the liquid medicine extremely the infusion branch road. The utility model discloses technical scheme's injection line can used repeatedly, reduces the production of medical waste.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to injection pipeline and injection pipeline subassembly.
Background
Generally, in the process of injecting a liquid medicine, the liquid medicine in a medicine bottle or a medicine bag is firstly sucked through a syringe and a liquid taking end, and then the liquid medicine sucked in the syringe is injected into a body of a subject (patient) to be infused by using the syringe and an infusion end. However, in such an injection tube, the liquid medicine remains after the liquid medicine is delivered from the infusion end, and the infusion tube is easily contaminated and cannot be reused, resulting in a large amount of medical waste.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an injection pipeline, aims at using repeatedly, reduces the production of medical waste.
In order to achieve the purpose, the injection pipeline provided by the utility model comprises a liquid taking branch, a cleaning branch and a transfusion branch;
the infusion branch road includes the transfer line, connects the connector of transfer line and connection the malleation of connector connects, get the liquid branch road with wash the branch road all connect in the transfer line, wash the branch road with it all is equipped with the three-way valve to get the liquid branch road, the three-way valve is connected with the syringe, in order to pass through the syringe carries the liquid medicine extremely the infusion branch road.
Optionally, the connector includes the connecting main body, the connecting main body sets up inlet and the liquid outlet of mutual intercommunication, the connecting main body is close to the outer wall of liquid outlet one end is equipped with the external screw thread, malleation articulate in the external screw thread, the one end of transfer line peg graft in the inlet, so that liquid medicine in the transfer line passes through the connector is carried extremely the malleation connects.
Optionally, the outer wall of the connecting body adjacent to one end of the liquid inlet is provided with an anti-slip plane.
Optionally, the connector further includes two lugs, and the two lugs are symmetrically disposed on the outer wall of the connecting body adjacent to one end of the liquid inlet.
Optionally, the two lugs are of unitary construction with the connecting body.
Optionally, the three-way valve comprises:
the valve body is provided with a first flow passage, a second flow passage and a third flow passage, the first flow passage is communicated with the third flow passage through a first communication port, the second flow passage is communicated with the third flow passage through a second communication port, and the injector is connected with the third flow passage;
the first blocking piece is movably arranged between the first flow passage and the third flow passage; and
the second blocking piece is movably arranged between the second flow passage and the third flow passage;
the injector drives the first blocking piece and the second blocking piece to move and has a first state and a second state, when the injector is in the first state, the first blocking piece blocks the first communication port, and the second blocking piece opens the second communication port; when the first blocking piece is in the second state, the first communication opening is opened by the first blocking piece, and the second communication opening is blocked by the second blocking piece.
Optionally, the valve body is provided with a first rib at an outer periphery of the first communication port, and the first blocking piece abuts against the first rib;
and/or the valve body is provided with a second convex rib at the outer periphery of the second communication port, and the second plugging piece is abutted to the second convex rib.
Optionally, the infusion branch further comprises a one-way valve, and the one-way valve is arranged on the infusion tube to guide the liquid medicine in the liquid taking branch or the cleaning branch to the positive pressure joint.
Optionally, the injection pipeline includes a U-shaped tee, and the liquid-taking branch and the cleaning branch are connected to the infusion tube through the U-shaped tee.
The utility model also provides an injection pipeline subassembly, include as above-mentioned injection pipeline and connection the syringe of injection pipeline.
The injection pipeline provided by the technical proposal of the utility model comprises a liquid taking branch, a cleaning branch and a transfusion branch; through will getting the liquid branch road and washing the branch road and connecting in the transfer line of infusion branch road for at the in-process of injection infusion, can be earlier through the three-way valve of getting the liquid branch road and the syringe of connecting this three-way valve, follow the liquid branch road and absorb the liquid medicine of medicine bottle or medicine bag, then inject through the connector and the malleation joint of infusion branch road again and push into the patient in vivo, thereby accomplish the liquid medicine injection process. Then, when the device needs to be repeatedly used, the liquid medicine can be sucked from the cleaning branch through the three-way valve of the cleaning branch and the injector connected with the three-way valve, and then the liquid medicine is ejected from the infusion tube, the connector and the positive pressure connector of the infusion branch, so that the cleaning process of the infusion branch is completed by using the liquid medicine of the cleaning branch, and finally the liquid medicine is sucked by using the liquid taking branch to inject other infusion objects. The design of the structure enables the infusion branch to be cleaned in time after injection is completed, so that the injection pipeline can be reused, and medical waste is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an embodiment of an injection line of the present invention;
FIG. 2 is a schematic structural view of a connector in an injection pipeline according to the present invention;
FIG. 3 is a schematic structural diagram of a three-way valve in an injection pipeline according to the present invention;
fig. 4 is an exploded cross-sectional view of the injection tubing of fig. 3.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an injection pipeline.
Referring to fig. 1 to 4, in the embodiment of the present invention, the injection pipeline includes a fluid-taking branch 100, a cleaning branch 200 and a fluid-delivering branch 300;
Specifically, the liquid taking branch 100 is mainly used for sucking a liquid medicine (such as a contrast medium) and delivering the liquid medicine to an infusion subject through the infusion branch 300, the liquid taking branch 100 includes a liquid taking PVC tube 120 and a liquid taking puncture outfit 110 connected to the liquid taking PVC tube 120, the liquid taking PVC tube 120 is connected to an infusion tube 310, and the PVC (Polyvinyl chloride) liquid taking puncture outfit 110 is used for puncturing a medicine bottle or a medicine bag and then delivering the liquid medicine to the infusion subject through the liquid taking PVC tube 120 and the infusion tube 310.
The cleaning branch 200 is used for sucking cleaning liquid medicine (such as normal saline) and conveying the liquid medicine to the infusion branch 300, so that the infusion branch 300 is cleaned by the normal saline, the liquid medicine remaining in the infusion branch 300 is prevented from being polluted, and the injection pipeline is repeatedly used. Specifically, the cleaning branch 200 includes a cleaning PVC pipe 220 and a cleaning puncture instrument 210 connected to the cleaning PVC pipe 220, and the infusion tube 310 is connected to the cleaning PVC pipe 220.
The three-way valve 400 is mainly used for connecting the injector, the liquid taking branch 100 or the cleaning branch 200, and the infusion branch 300, and in practical application, the injector pumps the liquid medicine into the syringe of the injector through the liquid taking branch 100 or the cleaning branch 200, and then pushes the liquid medicine in the syringe to the infusion branch 300, so as to inject the infusion object or clean the infusion branch 300.
In the application, the infusion tube 310 may also be made of PVC (polyvinyl chloride), which has stable performance, is not easily corroded by acid or alkali, and is relatively resistant to heat; and the mechanical strength and the electrical insulation are good, and the liquid is not easy to break and leak in the using process. The positive pressure connector 330 may have a structure commonly used in the prior art, and may be used in cooperation with an indwelling needle to inject medical fluid. In practical application, since the connecting end of the positive pressure joint 330 cannot be directly connected to the tube body, the positive pressure joint 330 and the infusion tube 310 are indirectly connected by disposing the connector 320 between the infusion tube 310 and the positive pressure joint 330, so that the medical fluid is guided from the infusion tube 310 to the positive pressure joint 330 for injection.
Therefore, the injection pipeline provided by the technical scheme of the utility model comprises a liquid taking branch 100, a cleaning branch 200 and a liquid infusion branch 300; by connecting the liquid taking branch 100 and the cleaning branch 200 to the infusion tube 310 of the infusion branch 300, in the process of infusion, the liquid medicine of the medicine bottle or the medicine bag can be sucked from the liquid taking branch 100 through the three-way valve 400 of the liquid taking branch 100 and the injector connected with the three-way valve 400, and then injected and pushed into the body of the patient through the connector 320 and the positive pressure connector 330 of the infusion branch 300, so that the liquid medicine injection process is completed. Then, when the infusion apparatus needs to be used repeatedly, the three-way valve 400 of the cleaning branch 200 and the injector connected with the three-way valve are firstly used for sucking the liquid medicine from the cleaning branch 200, and then the liquid medicine is pushed out from the infusion tube 310, the connector 320 and the positive pressure connector 330 of the infusion branch 300, so that the cleaning process of the infusion branch 300 is completed by the liquid medicine of the cleaning branch 200, and finally the liquid medicine is sucked by the liquid taking branch 100 to inject other infusion objects. The design of the structure enables the infusion branch 300 to be cleaned in time after the injection is finished, so that the injection pipeline can be reused, and the generation of medical wastes is greatly reduced.
In order to realize indirect connection between the positive pressure joint 330 and the infusion tube 310, referring to fig. 2, in an embodiment of the present application, the connector 320 includes a connecting main body 321, the connecting main body 321 is provided with a liquid inlet 3211 and a liquid outlet 3212 which are communicated with each other, an external thread 3213 is disposed on an outer wall of one end of the connecting main body 321 adjacent to the liquid outlet 3212, the positive pressure joint 330 is connected to the external thread 3213, one end of the infusion tube 310 is inserted into the liquid inlet 3211, so that the liquid medicine in the infusion tube 310 is conveyed to the positive pressure joint 330 through the connector 320.
In the above embodiments, the connecting body 321 may be made of plastic, which is light and light, the connecting body 321 may be cylindrical, and the liquid inlet 3211 and the liquid outlet 3212 are disposed along the length direction of the cylindrical connecting body 321. It can be understood that the positive pressure connector 330 is provided with an internal thread for matching with the external thread 3213 of the connecting body 321, so that the positive pressure connector 330 is fixed to one end of the connecting body 321 by a threaded connection, and the infusion tube 310 can be inserted into the other end of the connecting body 321, or the other end of the connecting body 321 and the infusion tube 310 are integrally formed, so that the liquid medicine in the infusion tube 310 can enter the positive pressure connector 330 through the connector 320. In this embodiment, the positive pressure connector 330 does not need to be directly connected to the infusion tube 310, but is screwed with the positive pressure connector 330 through the connector 320, so that the positive pressure connector 330 can be easily connected to the infusion branch 300, and the installation and connection structure is simple and convenient.
Further, in an embodiment of the present application, an anti-slip plane 3214 is disposed on an outer wall of the connecting body 321 adjacent to one end of the liquid inlet 3211. A plurality of anti-slip planes 3214 may be provided, and the anti-slip planes 3214 are sequentially connected to each other, so that the outer wall surface of the connecting body 321 forms a prism surface. Through the anti-slip plane 3214, medical personnel can not slip when holding the connecting body 321 in the process of connecting the infusion tube 310 and the connecting body 321, thereby facilitating the connecting operation.
Further, the connector 320 of the present application further includes two lugs 3215, and the two lugs 3215 are symmetrically disposed on an outer wall of the connecting body 321 adjacent to one end of the liquid inlet 3211. Specifically, the protrusion 3215 may be designed as a rectangular plate structure, and by providing the protrusion 3215, when the medical staff holds the connector 320, the medical staff has a large holding surface, so as to apply an acting force, and further save labor and facilitate the operation of connecting the infusion tube 310.
In the above embodiment, the two lugs 3215 are formed integrally with the connecting body 321. So set up for lug 3215 and connecting body 321 can be demolding shaping simultaneously, not only make things convenient for the production mould, can improve the production efficiency of connector 320 moreover by a wide margin, carry out the quantization production.
Referring to fig. 3 and 4, in the embodiment of the present application, the three-way valve 400 includes:
a valve body 410, wherein the valve body 410 is provided with a first flow passage 411, a second flow passage 412 and a third flow passage 413, the first flow passage 411 is communicated with the third flow passage 413 through a first communication port 4111, the second flow passage 412 is communicated with the third flow passage 413 through a second communication port 4121, and the injector is connected with the third flow passage 413;
a first blocking member 420, wherein the first blocking member 420 is movably disposed between the first flow passage 411 and the third flow passage 413; and
a second blocking member 430, the second blocking member 430 being movably disposed between the second flow passage 412 and the third flow passage 413;
wherein the syringe drives the first blocking piece 420 and the second blocking piece 430 to move and has a first state and a second state, when in the first state, the first blocking piece 420 blocks the first communicating port 4111, and the second blocking piece 430 opens the second communicating port 4121; when in the second state, the first blocking member 420 opens the first communication port 4111, and the second blocking member 430 blocks the second communication port 4121.
In the above embodiment, the valve body 410 is mainly used for arranging the first flow passage 411, the second flow passage 412 and the third flow passage 413, and installing the first blocking piece 420 and the second blocking piece 430. In order to ensure the strength of the valve body 410, the valve body 410 may be an integrally formed structure; of course, the valve body 410 may be formed by connecting a plurality of segments separately in order to simplify the complexity of processing the valve body 410. The first blocking member 420 is mainly used to open or block the first flow passage 411 and the third flow passage 413, and the second blocking member 430 is mainly used to open or block the second flow passage 412 and the third flow passage 413. For example, when a syringe connected to the third bypass passage 413 sucks the liquid medicine to the right, the inside of the valve body 410 is at a negative pressure. At this time, the first blocking member 420 moves rightward to block the first communicating port 4111, that is, the first blocking member 420 blocks the first flow passing passage 411 and the third flow passing passage 413; and the second blocking member 430 moves upward to open the second communication port 4121, that is, the second blocking member 430 connects the second passing channel 412 and the third passing channel 413, so that the syringe can suck the liquid medicine along the paths of the second passing channel 412 and the third passing channel 413. When the syringe communicated with the third bypass passage 413 is discharged to the left to inject the liquid medicine, the pressure inside the valve body 410 is positive. At this time, the second blocking member 430 moves downward to block the second communication port 4121, that is, the second blocking member 430 blocks the second flow passage 412 and the third flow passage 413; and the first blocking piece 420 moves to the left, and the first communication port 4111 can be opened, that is, the first blocking piece 420 conducts the first flow passing channel 411 and the third flow passing channel 413, so that the syringe completes injection of the liquid medicine along the paths of the first flow passing channel 411 and the third flow passing channel 413. Therefore, the three-way valve 400 can be reversed by the suction or exhaust action of the injector itself.
In this embodiment, the projection of the first and second plugs 420 and 430 may be a circular structure, but may also be a square structure. The material may be metal material, for example: steel, aluminum, copper, nickel or monel to increase the lifetime of the first and second plugs 420, 430; of course, non-metal materials may be used, such as: made of non-metals such as asbestos, rubber, synthetic resin, teflon, etc., to reduce the mass of the first and second plugging members 420 and 430, which is not limited in the present application.
Further, in an embodiment of the present application, the valve body 410 is provided with a first rib 440 at an outer periphery of the first communicating hole 4111, and the first blocking member 420 abuts against the first rib 440; and/or the valve body 410 is provided with a second rib 450 at the outer periphery of the second communication opening 4121, and the second blocking piece 430 abuts against the second rib 450.
In the above embodiment, the first protruding rib 440 and the second protruding rib 450 may be provided in a plurality of numbers, and the arrangement of the first protruding ribs 440 and the second protruding ribs 450 respectively has a limiting effect on the first blocking piece 420 and the second blocking piece 430, so that the first blocking piece 420 and the second blocking piece 430 are accurately located in the middle, and the first blocking piece 420 and the second blocking piece 430 are guaranteed to be stressed uniformly and move smoothly under the action of the changing pressure, so as to tightly open or block the first communicating hole 4111 and the second communicating hole 4121. Moreover, the provision of the plurality of first ribs 440 and the plurality of second ribs 450 also reduces the use of materials to reduce the manufacturing cost of the three-way valve 400. Furthermore, the edges of the first ribs 440 facing the first blocking member 420 and the edges of the second ribs 450 facing the second blocking member 430 are rounded, so that the abrasion on the surface of the first blocking member 420 and the surface of the second blocking member 430 can be reduced.
In an embodiment of the present application, the infusion branch 300 further includes a check valve 500, and the check valve 500 is disposed on the infusion tube 310 to guide the medical fluid in the fluid-taking branch 100 or the cleaning branch 200 to the positive pressure connector 330. It can be understood that the liquid in the body of the subject to be infused can be prevented from flowing back into the injection pipeline from the positive pressure connector 330 and the connector 320 by the one-way valve 500, so that the infusion branch 300, the liquid taking branch 100 and the cleaning branch 200 can be protected, the pollution in the injection pipeline can be prevented, and the injection pipeline can be used for a long time.
In an embodiment of the present application, the injection pipeline includes a U-shaped tee 600, and the liquid taking branch 100 and the cleaning branch 200 are connected to the infusion tube 310 through the U-shaped tee 600. Through the connection of the U-shaped tee 600, the connection positions of the liquid taking branch 100, the cleaning branch 200 and the infusion branch 300 are smooth, no dead angle is formed, and the liquid medicine can be prevented from being accumulated in an injection pipeline.
The utility model discloses still provide an injection pipeline subassembly, this injection pipeline subassembly includes the syringe and connects the injection pipeline of syringe, and the concrete structure of this injection pipeline refers to above-mentioned embodiment, because this injection pipeline subassembly has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. An injection pipeline is characterized by comprising a liquid taking branch, a cleaning branch and a liquid conveying branch;
the infusion branch road includes the transfer line, connects the connector of transfer line and connection the malleation of connector connects, get the liquid branch road with wash the branch road all connect in the transfer line, wash the branch road with it all is equipped with the three-way valve to get the liquid branch road, the three-way valve is connected with the syringe, in order to pass through the syringe carries the liquid medicine extremely the infusion branch road.
2. The injection pipeline according to claim 1, wherein the connector comprises a connecting body, the connecting body defines a liquid inlet and a liquid outlet that are communicated with each other, an external thread is disposed on an outer wall of the connecting body adjacent to one end of the liquid outlet, the positive pressure connector is connected to the external thread, and one end of the infusion tube is inserted into the liquid inlet, so that the liquid medicine in the infusion tube is delivered to the positive pressure connector through the connector.
3. The infusion line according to claim 2, wherein an outer wall of said connecting body adjacent to an end of said inlet port is provided with a non-slip surface.
4. The injection line of claim 2, wherein the connector further comprises two lugs symmetrically disposed on the outer wall of the connecting body at an end adjacent to the inlet.
5. Injection tubing according to claim 4, characterized in that the two lugs are of one piece construction with the connecting body.
6. Injection line according to any one of claims 1 to 5, characterized in that the three-way valve comprises:
the valve body is provided with a first flow passage, a second flow passage and a third flow passage, the first flow passage is communicated with the third flow passage through a first communication port, the second flow passage is communicated with the third flow passage through a second communication port, and the injector is connected with the third flow passage;
the first blocking piece is movably arranged between the first flow passage and the third flow passage; and
the second blocking piece is movably arranged between the second flow passage and the third flow passage;
the injector drives the first blocking piece and the second blocking piece to move and has a first state and a second state, when the injector is in the first state, the first blocking piece blocks the first communication port, and the second blocking piece opens the second communication port; when the first blocking piece is in the second state, the first communication opening is opened by the first blocking piece, and the second communication opening is blocked by the second blocking piece.
7. The injection pipeline according to claim 6, wherein the valve body is provided with a first rib at an outer periphery of the first communication port, and the first blocking member abuts against the first rib;
and/or the valve body is provided with a second convex rib at the outer periphery of the second communication port, and the second plugging piece is abutted to the second convex rib.
8. The infusion line according to any one of claims 1 to 5, wherein said infusion branch further comprises a one-way valve disposed in said infusion tube for directing fluid from said fluid-taking branch or said purging branch to said positive pressure connector.
9. The infusion line according to any one of claims 1 to 5, wherein said infusion line comprises a U-tee, said tapping branch and said purging branch being connected to said infusion line through said U-tee.
10. An injection tubing assembly comprising an injection tubing according to any one of claims 1 to 9 and an injector connected to the injection tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069019.2U CN212016335U (en) | 2020-01-13 | 2020-01-13 | Injection line and injection line assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069019.2U CN212016335U (en) | 2020-01-13 | 2020-01-13 | Injection line and injection line assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212016335U true CN212016335U (en) | 2020-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020069019.2U Active CN212016335U (en) | 2020-01-13 | 2020-01-13 | Injection line and injection line assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212016335U (en) |
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2020
- 2020-01-13 CN CN202020069019.2U patent/CN212016335U/en active Active
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