CN210020685U - Infusion device - Google Patents
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- CN210020685U CN210020685U CN201920687777.8U CN201920687777U CN210020685U CN 210020685 U CN210020685 U CN 210020685U CN 201920687777 U CN201920687777 U CN 201920687777U CN 210020685 U CN210020685 U CN 210020685U
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Abstract
The utility model discloses an infusion device, which comprises a needle cylinder, wherein the needle cylinder is provided with an accommodating groove, one end of the needle cylinder, which is far away from the opening of the accommodating groove, is provided with a gas outlet and a liquid outlet at intervals, and the vertical distance between the gas outlet and the opening of the accommodating groove is larger than the vertical distance between the liquid outlet and the opening of the accommodating groove; one end of the liquid inlet pipe is communicated with the gas outlet, and a first control valve is arranged on the liquid inlet pipe; one end of the exhaust pipe is communicated with the air outlet, and a second control valve is arranged on the exhaust pipe; and one end of the liquid outlet pipe is communicated with the liquid outlet, and a third control valve is arranged on the liquid outlet pipe. The technical scheme of the utility model reduces medical personnel's intensity of labour.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to an infusion device.
Background
Intravenous infusion is a common treatment modality in clinical practice. However, in the process of sucking the liquid medicine, bubbles are likely to be generated in the liquid medicine in the infusion tube due to the temperature difference of the liquid medicine, the characteristics of the medicine, the infusion operation technique by the nurse, and the like. And the bubbles can cause certain harm to the body of the patient when entering the body of the patient, so that the medical care personnel needs to exhaust the liquid medicine for many times during the injection process of the liquid medicine. Thus, the labor intensity of medical personnel is increased.
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 to provide an infusion device, aiming at reducing the labor intensity of medical staff.
In order to achieve the above object, the utility model provides an infusion device, include:
the needle cylinder is provided with an accommodating groove, one end of the needle cylinder, which is far away from an opening of the accommodating groove, is provided with an air outlet and a liquid outlet at intervals, and the vertical distance between the air outlet and the opening of the accommodating groove is greater than the vertical distance between the liquid outlet and the opening of the accommodating groove;
one end of the liquid inlet pipe is communicated with the gas outlet, and a first control valve is arranged on the liquid inlet pipe;
one end of the exhaust pipe is communicated with the air outlet, and a second control valve is arranged on the exhaust pipe; and
and one end of the liquid outlet pipe is communicated with the liquid outlet, and a third control valve is arranged on the liquid outlet pipe.
In an embodiment of the present application, a height difference between the gas outlet and the liquid outlet is defined as H, where H > 3 mm.
In an embodiment of the present application, the inner wall of the accommodating groove adjacent to the air outlet and the liquid outlet is an inclined surface, and the inclined surface is inclined from the liquid outlet to the air outlet.
In an embodiment of the present application, the first control valve, the second control valve, and the third control valve are all check valves.
In an embodiment of the present application, one end of the liquid inlet pipe is communicated with the exhaust pipe and is located between the gas outlet and the second control valve.
In an embodiment of the present application, the infusion apparatus further includes a first three-way joint disposed on the exhaust pipe, the first three-way joint is located between the air outlet and the second control valve, and one end of the liquid inlet pipe is communicated with the first three-way joint.
In an embodiment of the present application, two sets of the needle cylinder, the liquid inlet pipe, the exhaust pipe, and the liquid outlet pipe are provided, and the infusion device further includes a confluence exhaust pipe and a confluence liquid outlet pipe;
one end of one exhaust pipe, far away from the air outlet communicated with the exhaust pipe, is communicated with one end of the other exhaust pipe, far away from the air outlet communicated with the exhaust pipe, and is communicated with one end of the confluence exhaust pipe;
one the drain pipe is kept away from one end of the liquid outlet communicated with the drain pipe and the other end of the drain pipe is kept away from one end of the liquid outlet communicated with the drain pipe, and is communicated with one end of the confluence drain pipe.
In an embodiment of the present application, the infusion device further includes a second three-way joint, one end of the exhaust pipe, which is far away from the air outlet communicated with the exhaust pipe, is communicated with a first interface of the second three-way joint, one end of the other exhaust pipe, which is far away from the air outlet communicated with the exhaust pipe, is communicated with a second interface of the second three-way joint, and one end of the confluence exhaust pipe is communicated with a third interface of the second three-way joint;
and/or, the infusion device still includes third three way connection, one the drain pipe is kept away from rather than the intercommunication the one end of liquid outlet communicate in third three way connection's first interface, another the drain pipe is kept away from rather than the intercommunication the one end of liquid outlet communicate in third three way connection's second interface, the one end of the drain pipe that converges communicate in third three way connection's third interface.
In an embodiment of the present application, a first connection end is protruded at the air outlet of the needle cylinder, the first connection end is provided with an air passing port communicated with the air outlet, and one end of the exhaust pipe is detachably connected to the first connection end and is communicated with the air passing port; the needle cylinder is convexly provided with a second connecting end at the liquid outlet, the second connecting end is provided with a liquid passing hole communicated with the liquid outlet, and one end of the liquid outlet pipe is detachably connected with the second connecting end and is communicated with the liquid passing hole.
In an embodiment of the application, an external thread structure is arranged on the outer surface of the first connection end, an internal thread structure is arranged on the inner wall of the exhaust pipe, and the exhaust pipe and the first connection end are in threaded connection with the external thread structure through the internal thread structure;
and/or, the surface of second link is equipped with external screw thread structure, the inner wall of drain pipe is equipped with internal thread structure, the drain pipe with the second link passes through internal thread structure with external screw thread structure threaded connection.
The utility model discloses when technical scheme's infusion set absorbed the liquid medicine, opened the first control valve that sets up on the feed liquor pipe, closed the third control valve that sets up on the second control valve that sets up on the blast pipe and the drain pipe simultaneously, the liquid medicine is carried to the storage tank of cylinder in by the one end of feed liquor pipe. Because the vertical distance between the air outlet and the opening of the containing groove is larger than the vertical distance between the liquid outlet and the opening of the containing groove, the air bubbles generated in the needle cylinder in the process of absorbing the liquid medicine rise and gather at the air outlet. After the infusion device finishes the absorption of the liquid medicine, the second control valve arranged on the exhaust pipe is opened, the first control valve arranged on the liquid inlet pipe and the third control valve arranged on the liquid outlet pipe are closed at the same time, and the air bubbles gathered at the air outlet in the needle cylinder are discharged at one time through the exhaust pipe. After the infusion device finishes exhausting, the third control valve arranged on the liquid outlet pipe is opened, the first control valve arranged on the liquid inlet pipe and the second control valve arranged on the exhaust pipe are closed simultaneously, and liquid in the accommodating groove can be output by the liquid outlet pipe, so that the injection process of the liquid medicine is finished. Therefore, the air bubbles generated in the process of sucking the liquid medicine before the liquid medicine injection are removed at one time, so that the medical personnel do not need to exhaust the liquid medicine for many times in the liquid medicine injection process, and the labor intensity of the medical personnel is 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 structural view of an embodiment of the infusion device of the present invention.
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, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating 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 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 infusion device.
Referring to fig. 1, in an embodiment of the present invention, the infusion device includes a syringe 1, a liquid inlet pipe 2, an exhaust pipe 3 and a liquid outlet pipe 4; the needle cylinder 1 is provided with a containing groove 11, one end of the needle cylinder 1, which is far away from an opening of the containing groove 11, is provided with an air outlet 12 and a liquid outlet 13 at intervals, and the vertical distance between the air outlet 12 and the opening of the containing groove 11 is larger than the vertical distance between the liquid outlet 13 and the opening of the containing groove 11; one end of the liquid inlet pipe 2 is communicated with the gas outlet 12, and the liquid inlet pipe 2 is provided with a first control valve 21; one end of the exhaust pipe 3 is communicated with the air outlet 12, and a second control valve 31 is arranged on the exhaust pipe 3; one end of the liquid outlet pipe 4 is communicated with the liquid outlet 13, and a third control valve 41 is arranged on the liquid outlet pipe 4.
In this embodiment, the containing groove 11 is mainly used for containing the sucked liquid medicine, and both the containing groove and the syringe 1 are of a circular structure, so that the manufacturing and processing are convenient, and the appearance of the syringe 1 is more attractive. Of course, in other embodiments, the receiving groove 11 and the syringe 1 may have other shapes. In order to prolong the service life of the syringe 1, the syringe 1 is made of polypropylene materials. It can be understood that the polypropylene material has good mechanical property and rigidity, and has the advantage of corrosion resistance. Therefore, the syringe 1 is firm and durable, and the influence on the service life caused by corrosion due to chemical reaction with the liquid medicine in the accommodating groove 11 is avoided.
The utility model discloses when technical scheme's infusion set absorbed the liquid medicine, opened the first control valve 21 that sets up on feed liquor pipe 2, closed the third control valve 41 that sets up on the second control valve 31 that sets up on the blast pipe 3 and the drain pipe 4 simultaneously, the liquid medicine is carried to the storage tank 11 of cylinder 1 in by the one end of feed liquor pipe 2. Because the vertical distance between the air outlet 12 and the opening of the containing groove 11 is greater than the vertical distance between the liquid outlet 13 and the opening of the containing groove 11, the bubbles generated in the needle cylinder 1 in the process of sucking the liquid medicine rise and gather at the air outlet 12. After the infusion device finishes the absorption of the liquid medicine, the second control valve 31 arranged on the exhaust pipe 3 is opened, the first control valve 21 arranged on the liquid inlet pipe 2 and the third control valve 41 arranged on the liquid outlet pipe 4 are closed at the same time, and the air bubbles gathered at the air outlet 12 in the needle cylinder 1 are discharged at one time through the exhaust pipe 3. After the infusion device finishes exhausting, the third control valve 41 arranged on the liquid outlet pipe 4 is opened, the first control valve 21 arranged on the liquid inlet pipe 2 and the second control valve 31 arranged on the exhaust pipe 3 are closed at the same time, and the liquid in the accommodating groove 11 can be output by the liquid outlet pipe 4, so that the injection process of the liquid medicine is finished. Therefore, the air bubbles generated in the process of sucking the liquid medicine before the liquid medicine injection are removed at one time, so that the medical personnel do not need to exhaust the liquid medicine for many times in the liquid medicine injection process, and the labor intensity of the medical personnel is reduced.
In one embodiment of the present application, the height difference between the gas outlet 12 and the liquid outlet 13 is defined as H, where H > 3 mm.
It can be understood that, when the syringe 1 sucks more liquid medicine, more bubbles are generated in the containing groove 11, and if the height difference H between the air outlet 12 and the liquid outlet 13 is small, part of the bubbles are likely to be gathered at the liquid outlet 13 and enter the liquid outlet pipe 4 from the liquid outlet 13. So that the part of the air bubbles can not be removed in the process of exhausting the infusion set, and the part of the air bubbles can affect the body of the patient along with the injection of the liquid medicine into the body of the patient in the process of injecting the infusion set. Therefore, the height difference H between the gas outlet 12 and the liquid outlet 13 is set to be greater than 3mm to increase the amount of gas bubbles collected at the gas outlet 12 and prevent a part of the gas bubbles from collecting at the liquid outlet 13. Specifically, H may be 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or the like, or may be any value in the above range, and the application does not limit the specific value of H, and it is sufficient to ensure that the height difference H > 3 mm.
In an embodiment of the present application, the inner wall of the containing groove 11 adjacent to the air outlet 12 and the liquid outlet 13 is provided as an inclined surface 111, and the inclined surface 111 is inclined from the liquid outlet 13 to the air outlet 12.
It can be understood that the inclined surface 111 has a guiding function, and when bubbles generated in the accommodating groove 11 rise to a position adjacent to the liquid outlet 13, the bubbles can continue to rise along the inclined surface 111, so that the bubbles are prevented from entering the liquid outlet 13. Specifically, in the present embodiment, the included angle between the inclined surface 111 and the side wall of the accommodating groove 11 is 135 °, and of course, in other embodiments, the included angle may be 130 °, 140 °, 145 °, or any value in the above range, and the present application does not limit the specific value of the included angle between the inclined surface 111 and the side wall of the accommodating groove 11, and it is sufficient to ensure that the inclined surface 111 has a better guiding effect.
In an embodiment of the present application, the first control valve 21, the second control valve 31, and the third control valve 41 are all check valves.
It will be appreciated that the use of one-way valve control allows the first control valve 21, the second control valve 31, and the third control valve 41 to automatically open or close the respective lines during infusion, deflation, and injection of the infusion set without requiring the medical practitioner to manually activate or deactivate the first control valve 21, the second control valve 31, and the third control valve 41, further reducing the labor intensity of the medical practitioner.
In one embodiment of the present application, one end of the liquid inlet pipe 2 is connected to the gas outlet pipe 3 and is located between the gas outlet 12 and the second control valve 31.
It can be understood that, so set up, can reduce the setting of gas outlet 12, make simultaneously gas outlet 12 with exhaust pipe 3 intercommunication can, need not simultaneously with feed liquor pipe 2 and exhaust pipe 3 intercommunication, simplified the connection structure of gas outlet 12.
In an embodiment of the present application, the infusion apparatus further includes a first three-way joint 33 disposed on the exhaust pipe 3, the first three-way joint 33 is located between the air outlet 12 and the second control valve 31, and one end of the liquid inlet pipe 2 is communicated with the first three-way joint 33.
It can be understood that connect feed liquor pipe 2 and blast pipe 3 through first three way connection 33, can realize being connected with dismantling of feed liquor pipe 2 and blast pipe 3, so be convenient for wash feed liquor pipe 2 and 3 inside dirt of blast pipe, also can avoid simultaneously feed liquor pipe 2 and blast pipe 3's local damage and need change wholly, reduced the cost of maintenance and change.
In one embodiment of the application, two groups of needle cylinders 1, liquid inlet pipes 2, exhaust pipes 3 and liquid outlet pipes 4 are arranged, and the infusion device further comprises a confluence exhaust pipe 5 and a confluence liquid outlet pipe 6; one end of one exhaust pipe 3 far away from the air outlet 12 communicated with the exhaust pipe is communicated with one end of the other exhaust pipe 3 far away from the air outlet 12 communicated with the exhaust pipe and is communicated with one end of the confluence exhaust pipe 5; one end of one liquid outlet pipe 4 far away from the liquid outlet 13 communicated with the liquid outlet pipe 4 and one end of the other liquid outlet pipe 4 far away from the liquid outlet 13 communicated with the liquid outlet pipe are communicated, and are communicated with one end of the confluence liquid outlet pipe 6.
It can be understood that, so set up and make infusion set can absorb two kinds of different liquid medicines simultaneously, when avoiding carrying out the cooperation of liquid medicine, need absorb two kinds of different liquid medicines in batches with a set of cylinder 1, improved infusion set's infusion efficiency, also reduced medical personnel's intensity of labour. Of course, in other embodiments, three, four or more groups of the needle cylinder 1, the liquid inlet pipe 2, the gas outlet pipe 3 and the liquid outlet pipe 4 may be provided, so as to facilitate the simultaneous absorption of multiple kinds of liquid medicines and improve the working efficiency.
In an embodiment of the present application, the infusion apparatus further includes a second three-way joint 7, one end of one exhaust pipe 3 away from the air outlet 12 communicated therewith is communicated with the first interface of the second three-way joint 7, one end of the other exhaust pipe 3 away from the air outlet 12 communicated therewith is communicated with the second interface of the second three-way joint 7, and one end of the confluence exhaust pipe 5 is communicated with the third interface of the second three-way joint 7.
It can be understood that connect two trachea 3 and converge blast pipe 5 through second three way connection 7, can realize two trachea 3 and converge the dismantled connection between blast pipe 5, so be convenient for wash into two trachea 3 and converge the inside dirt of blast pipe 5, also can avoid two trachea 3 and the local damage of blast pipe 5 of converging and need change wholly simultaneously, reduced the cost of maintenance and change. In order to ensure the control effect of the second control valve 31, the second control valve 31 is located between the first three-way joint 33 and the second three-way 7 joint.
In an embodiment of the present application, the infusion apparatus further includes a third three-way joint 8, one end of one of the liquid outlet pipes 4 far away from the liquid outlet 13 communicated therewith is communicated with the first interface of the third three-way joint 8, one end of the other liquid outlet pipe 4 far away from the liquid outlet 13 communicated therewith is communicated with the second interface of the third three-way joint 8, and one end of the confluence liquid outlet pipe 6 is communicated with the third interface of the third three-way joint 8.
It can be understood that connect two drain pipes 4 and converge drain pipe 6 through third three way connection 8, can realize two drain pipes 4 and converge the connection of dismantling between the drain pipe 6, so be convenient for wash into two drain pipes 4 and converge the inside dirt of drain pipe 6, also can avoid two drain pipes 4 and converge the local damage of drain pipe 6 and need change wholly simultaneously, reduced the cost of maintenance and change. In order to ensure the control effect of the third control valve 41, the third control valve 41 is located between the liquid outlet 13 and the third three-way joint 8.
In one embodiment of the present application, the syringe 1 is provided with a first connecting end 14 protruding from the air outlet 12, the first connecting end 14 is provided with an air passing port communicated with the air outlet 12, and one end of the exhaust pipe 3 is detachably connected to the first connecting end 14 and is communicated with the air passing port; the needle cylinder 1 is convexly provided with a second connecting end 15 at the liquid outlet 13, the second connecting end 15 is provided with a liquid passing hole communicated with the liquid outlet 13, and one end of the liquid outlet pipe 4 is detachably connected to the second connecting end 15 and communicated with the liquid passing hole.
It can be understood that the detachable connection of the exhaust pipe 3 and the first connection end 14 and the liquid outlet pipe 4 and the second connection end 15 facilitates the later maintenance and replacement of the needle cylinder 1 and the exhaust pipe 3 or the liquid outlet pipe 4, and simultaneously, the needle cylinder 1 and the exhaust pipe 3 or the liquid outlet pipe 4 can be stored and transported independently, so that the occupied space is reduced.
In an embodiment of the present application, an external thread structure is disposed on an outer surface of the first connection end 14, an internal thread structure is disposed on an inner wall of the exhaust pipe 3, and the exhaust pipe 3 and the first connection end 14 are in threaded connection with the external thread structure through the internal thread structure.
It can be understood that the threaded connection is stable and reliable, and can ensure the stable connection between the exhaust pipe 3 and the first connection end 14. Meanwhile, the threaded connection mode is convenient to mount and dismount, and the mounting process of the exhaust pipe 3 and the first connecting end 14 is simplified, so that the labor intensity of medical staff is reduced. Of course, in other embodiments, the exhaust pipe 3 and the first connection end 14 may be fixed by snapping. Specifically, a clamping groove may be formed in the outer surface of the first connection end 14, a clamping block may be arranged on the inner wall of the exhaust pipe 3, and when the exhaust pipe 3 is installed at the first connection end 14, the clamping block is clamped into the clamping groove.
In this application embodiment, the surface of second link 15 is equipped with external screw thread structure, and the inner wall of drain pipe 4 is equipped with internal thread structure, drain pipe 4 with second link 15 passes through internal thread structure and external screw thread structure threaded connection.
It can be understood that the threaded connection is stable and reliable, and the stable connection between the liquid outlet pipe 4 and the second connecting end 15 can be ensured. Meanwhile, the threaded connection mode is convenient to install and disassemble, and the installation process of the liquid outlet pipe 4 and the second connecting end 15 is simplified, so that the labor intensity of medical staff is reduced. Of course, in other embodiments, the outlet pipe 4 and the second connecting end 15 may be fixed by clamping. Specifically, a clamping groove can be formed in the outer surface of the second connecting end 15, a clamping block is arranged on the inner wall of the liquid outlet pipe 4, and when the liquid outlet pipe 4 is installed on the second connecting end 15, the clamping block is clamped into the clamping groove.
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 infusion device, comprising:
the needle cylinder is provided with an accommodating groove, one end of the needle cylinder, which is far away from an opening of the accommodating groove, is provided with an air outlet and a liquid outlet at intervals, and the vertical distance between the air outlet and the opening of the accommodating groove is greater than the vertical distance between the liquid outlet and the opening of the accommodating groove;
one end of the liquid inlet pipe is communicated with the gas outlet, and a first control valve is arranged on the liquid inlet pipe;
one end of the exhaust pipe is communicated with the air outlet, and a second control valve is arranged on the exhaust pipe; and
and one end of the liquid outlet pipe is communicated with the liquid outlet, and a third control valve is arranged on the liquid outlet pipe.
2. The infusion device as claimed in claim 1, wherein the height difference between said air outlet and said liquid outlet is defined as H, H > 3 mm.
3. The infusion set as claimed in claim 1, wherein the receiving groove is formed with an inclined surface adjacent to the air outlet and the inner wall of the liquid outlet, and the inclined surface is inclined from the liquid outlet toward the air outlet.
4. The infusion device as claimed in claim 1, wherein said first control valve, said second control valve and said third control valve are all one-way valves.
5. The infusion device as claimed in claim 1, wherein one end of the fluid inlet tube is connected to the air outlet tube and is located between the air outlet and the second control valve.
6. The infusion device as claimed in claim 5, further comprising a first three-way connection provided at said vent line, said first three-way connection being located between said vent port and said second control valve, one end of said fluid inlet line being connected to said first three-way connection.
7. The infusion device as claimed in claim 1, wherein there are two sets of said syringe, said inlet tube, said exhaust tube and said outlet tube, said infusion device further comprising a confluent exhaust tube and a confluent outlet tube;
one end of one exhaust pipe, far away from the air outlet communicated with the exhaust pipe, is communicated with one end of the other exhaust pipe, far away from the air outlet communicated with the exhaust pipe, and is communicated with one end of the confluence exhaust pipe;
one the drain pipe is kept away from one end of the liquid outlet communicated with the drain pipe and the other end of the drain pipe is kept away from one end of the liquid outlet communicated with the drain pipe, and is communicated with one end of the confluence drain pipe.
8. The infusion device as claimed in claim 7, further comprising a second three-way joint, wherein one end of one of the exhaust pipes, which is far away from the air outlet communicated therewith, is communicated with the first interface of the second three-way joint, one end of the other exhaust pipe, which is far away from the air outlet communicated therewith, is communicated with the second interface of the second three-way joint, and one end of the confluence exhaust pipe is communicated with the third interface of the second three-way joint;
and/or, the infusion device still includes third three way connection, one the drain pipe is kept away from rather than the intercommunication the one end of liquid outlet communicate in third three way connection's first interface, another the drain pipe is kept away from rather than the intercommunication the one end of liquid outlet communicate in third three way connection's second interface, the one end of the drain pipe that converges communicate in third three way connection's third interface.
9. The infusion device according to any one of claims 1 to 8, wherein the syringe is provided with a first connecting end protruding from the air outlet, the first connecting end is provided with an air vent communicated with the air outlet, and one end of the exhaust tube is detachably connected to the first connecting end and communicated with the air vent; the needle cylinder is convexly provided with a second connecting end at the liquid outlet, the second connecting end is provided with a liquid passing hole communicated with the liquid outlet, and one end of the liquid outlet pipe is detachably connected with the second connecting end and is communicated with the liquid passing hole.
10. The infusion set as claimed in claim 9, wherein the outer surface of the first connection end is provided with an external thread structure, the inner wall of the exhaust tube is provided with an internal thread structure, and the exhaust tube and the first connection end are in threaded connection with the external thread structure through the internal thread structure;
and/or, the surface of second link is equipped with external screw thread structure, the inner wall of drain pipe is equipped with internal thread structure, the drain pipe with the second link passes through internal thread structure with external screw thread structure threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920687777.8U CN210020685U (en) | 2019-05-14 | 2019-05-14 | Infusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920687777.8U CN210020685U (en) | 2019-05-14 | 2019-05-14 | Infusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210020685U true CN210020685U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920687777.8U Active CN210020685U (en) | 2019-05-14 | 2019-05-14 | Infusion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210020685U (en) |
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2019
- 2019-05-14 CN CN201920687777.8U patent/CN210020685U/en active Active
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