CN219185286U

CN219185286U - Infusion connecting pipe

Info

Publication number: CN219185286U
Application number: CN202222237891.5U
Authority: CN
Inventors: 曾勇; 杨林; 韩素琴; 陈晓英; 苟文彬; 吴新艳
Original assignee: SICHUAN GUANGYUAN KANGKANG MEDICAL EQUIPMENT CO LTD
Current assignee: SICHUAN GUANGYUAN KANGKANG MEDICAL EQUIPMENT CO LTD
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-06-16
Anticipated expiration: 2032-08-25

Abstract

The utility model provides an infusion connecting pipe, and aims to solve the technical problems that when the traditional infusion liquid medicine is infused, multiple operations are needed, the operation is inconvenient, and the pollution risk exists in the operation process. The connecting pipe includes: the connecting pipe fitting is in a T-shaped structure and is provided with a first interface, a second interface and a third interface; one end of the first pipeline is connected with the first interface, and the other end of the first pipeline is provided with a syringe connector; one end of the second pipeline is connected with the second interface, and the other end of the second pipeline is connected with a puncture outfit through a filter; one end of the third pipeline is connected with the third interface, and the other end of the third pipeline is connected with a transfusion tube; the second pipeline and the third pipeline are respectively provided with a first one-way valve and a second one-way valve, and the flow directions of fluid of the two one-way valves are opposite; when liquid suction is performed, the first one-way valve is conducted, the second one-way valve is closed, and when liquid medicine is injected, the first one-way valve is closed, and the second one-way valve is conducted. The utility model simplifies transfusion operation, saves time and labor, and avoids pollution risk caused by operation process.

Description

Infusion connecting pipe

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an infusion connecting pipe.

Background

The traditional injection mode of the liquid medicine is as follows: firstly, the liquid medicine in the liquid medicine bottle is sucked through the injector, then the injector is pulled out of the liquid medicine bottle, and then the injector is connected with the infusion tube, so that the liquid medicine is injected into a patient. In the whole operation process, a plurality of operations are needed, so that the operation is very inconvenient, and the medicament is exposed to the air when the connection between the liquid medicine bottle and the syringe is disconnected, so that the pollution risk is brought.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the utility model aims to provide the infusion connecting pipe, which solves the technical problems that the operation is inconvenient for a plurality of times and the pollution risk exists in the operation process when the liquid medicine is infused in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

an infusion connection tube comprising: the connecting pipe fitting is in a T-shaped structure and is provided with a first interface, a second interface and a third interface, wherein the first interface and the third interface are symmetrically arranged; one end of the first pipeline is connected with the first interface, and the other end of the first pipeline is provided with an injector connector; one end of the second pipeline is connected with the second interface, and the other end of the second pipeline is connected with a puncture outfit through a filter; one end of the third pipeline is connected with the third interface, and the other end of the third pipeline is connected with a transfusion tube; the second pipeline and the third pipeline are respectively provided with a first one-way valve and a second one-way valve, and the flowing directions of the fluid of the first one-way valve and the fluid of the second one-way valve are opposite; when liquid suction is carried out, the first one-way valve is conducted, the second one-way valve is closed, and when liquid medicine is injected, the first one-way valve is closed, and the second one-way valve is conducted.

According to the utility model, the first one-way valve and the second one-way valve are adopted, and the flowing directions of the fluid are opposite, so that the first one-way valve is opened and the second one-way valve is closed when the syringe is used for sucking medicine, and a patient is not influenced; when the medicine needs to be injected into a patient, under the action of pressure, the first one-way valve is closed, the second one-way valve is communicated, the medicine liquid flows into the body of the patient through the first pipeline, the second pipeline and the second one-way valve, the medicine suction and injection can be alternately and continuously carried out, the syringe and the medicine liquid bottle are not required to be connected, the medicine liquid of the syringe is input into the body of the patient after the syringe is pulled out, the transfusion operation is effectively simplified, the time and the labor are saved, and the pollution risk caused by the operation process is avoided.

Optionally, the second pipeline is a normal pressure pipeline, and the third pipeline is a high pressure pipeline.

Optionally, the second tube is made of PVC material, and the third tube is made of TPU/PA material.

Optionally, the second pipeline includes first linkage segment and second linkage segment, first linkage segment one end with the second interface links to each other, and the other end is provided with first joint, first check valve one end with first joint is connected, the other end with the one end of second linkage segment is connected, the other end of second linkage segment with the filter is connected.

Optionally, the length of the first pipeline is H, and the length of the first connection section of the second pipeline is H, where H satisfies: h is more than or equal to H and less than or equal to 2H; the lengths of the second connecting section and the third pipeline are more than ten times that of the first connecting section or the first pipeline respectively.

Optionally, be provided with the support net in the filter, the one end that the support net is close to the puncture ware is provided with the peak, the parcel of support net outer wall has filtration membrane, have the reposition of redundant personnel clearance between filtration membrane and the filter shells inner wall. Through the setting of filter for the filter filters the liquid medicine from the liquid medicine bottle, not only can filter the physical granule that gets into from the puncture ware and can also filter the bacterium, and the filtration membrane in the filter carries out special setting through the support net in addition, not only can effectively avoid fluid to directly cause the impact to the filtration membrane, has still increased filtration area

Optionally, one end of the puncture outfit far away from the filter is pointed, and a protective cover is movably arranged on the puncture outfit.

Optionally, the puncture outfit is provided with a first channel and a second channel, the first channel is communicated with the filter, and the second channel is communicated with the outside through the ventilation plug.

Optionally, the second check valve is disposed at one end of the third pipeline far away from the third connector, and the second check valve is detachably and hermetically connected with the infusion tube through the second connector.

Optionally, the second one-way valve is disposed at the third interface.

The utility model has the beneficial effects that:

1. according to the utility model, the first one-way valve and the second one-way valve are adopted, and the flowing directions of the fluid are opposite, so that the first one-way valve is opened and the second one-way valve is closed when the syringe is used for sucking medicine, and a patient is not influenced; when the medicine needs to be injected into a patient, under the action of pressure, the first one-way valve is closed, the second one-way valve is communicated, the medicine liquid flows into the body of the patient through the first pipeline, the second pipeline and the second one-way valve, the medicine suction and injection can be alternately and continuously carried out, the syringe and the medicine liquid bottle are not required to be connected, the medicine liquid of the syringe is input into the body of the patient after the syringe is pulled out, the transfusion operation is effectively simplified, the time and the labor are saved, and the pollution risk caused by the operation process is avoided.

2. Through the setting of filter for the filter filters the liquid medicine that comes from the liquid medicine bottle, not only can filter the physical granule that gets into from the puncture ware and can also filter the bacterium, and the filtration membrane in the filter carries out special setting through the support net in addition, not only can effectively avoid fluid to directly cause the impact to filtration membrane, has still increased filtration area. By additionally arranging the second channel on the puncture outfit, after the contrast agent in the liquid medicine bottle is used, the liquid medicine bottle can not form a vacuum state, and the smoothness of the using process is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of a filter according to the present utility model.

Fig. 3 is a schematic structural view of the puncture outfit according to the present utility model.

Reference numerals: 1. connecting the pipe fittings; 10. a first interface; 11. a second interface; 12. a third interface; 2. a first pipeline; 20. a syringe connector; 3. a second pipeline; 3a, a first connection section; 3b, a second connecting section; 30. a first one-way valve; 31. a first joint; 4. a filter; 40. a stent mesh; 41. a sharp top; 42. a filtering membrane; 5. a puncture outfit; 50. a protective cover; 51. a first channel; 52. a second channel; 53. a ventilation plug; 54. a gland; 6. a third pipeline; 60. a second one-way valve; 61. a second joint; 7. an infusion tube.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the embodiments of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "end," "side," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of describing the embodiments of the present application and for simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

In the examples of the present application, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the present utility model. In order to simplify the disclosure of embodiments of the present application, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the embodiments of the present application. Furthermore, the present application embodiments may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 3, an embodiment of the present utility model provides an infusion connection tube to solve the above-mentioned problems. The connecting pipe comprises a connecting pipe fitting 1, a first pipeline 2, a second pipeline 3, a filter 4, a puncture outfit 5, a third pipeline 6 and a transfusion pipe 7.

The connecting pipe fitting 1 is of a T-shaped structure and is provided with a first interface 10, a second interface 11 and a third interface 12, wherein the first interface 10 and the third interface 12 are symmetrically arranged; one end of the first pipeline 2 is connected with the first connector 10, and the other end is provided with a syringe connector 20; one end of the second pipeline 3 is connected with a second connector 11, and the other end is connected with a puncture outfit 5 through a filter 4; one end of the third pipeline 6 is connected with a third connector 12, and the other end is connected with a transfusion tube 7; the second pipeline 3 and the third pipeline 6 are respectively provided with a first check valve 30 and a second check valve 60, the first check valve 30 and the second check valve 60 play a role in resisting reverse, and the flow directions of the fluid of the first check valve 30 and the second check valve 60 are opposite. When in use, the puncture outfit 5 can be connected with a liquid medicine bottle, the injector connector 20 is connected with the injector, the first one-way valve 30 on the second pipeline 3 is conducted, and the second one-way valve 60 on the third pipeline 6 is closed when in liquid suction; when the liquid medicine is injected, the first check valve 30 is closed and the second check valve 60 is opened.

One end of the third pipeline 6 is connected to the third port 12, and in this embodiment, the second check valve 60 is disposed at an end of the third pipeline 6 away from the third port 12. One end of the second one-way valve 60 is connected with one end of the third pipeline 6, and the other end of the second one-way valve is detachably and hermetically connected with the infusion tube 7 through the second connector 61. In another embodiment, the second check valve 60 is disposed at the third port 12 (not shown).

The second pipeline 3 is provided with a first one-way valve 30 and a first joint 31. Specifically, the second pipeline 3 includes a first connecting section 3a and a second connecting section 3b, one end of the first connecting section 3a is connected with the second connector 11, the other end is provided with a first connector 31, one end of the first check valve 30 is connected with the first connector 31, the other end is connected with one end of the second connecting section 3b, and the other end of the second connecting section 3b is connected with the filter 4.

The filter 4 filters the chemical solution from the chemical solution bottle.

Optionally, a support net 40 is arranged in the filter 4, the open end of the support net 40 is fixed at the joint with the second connecting section 3b, a tip 42 is arranged at one end of the support net 40 close to the puncture outfit 5, and the outer wall of the support net 40 is wrapped with a filtering membrane 42. The filter 4 can filter not only physical particles entering from the piercer 5 but also bacteria. The filter membrane 42 is arranged through the support net 40, so that a diversion gap is formed between the filter membrane 42 and the inner wall of the shell of the filter 4, the impact of fluid on the filter membrane 42 can be effectively avoided, and compared with the prior art, the filtering area is increased.

Optionally, the second pipeline 3 is a normal pressure pipeline, and the third pipeline 6 is a high pressure pipeline.

Optionally, the second pipe 3 is made of PVC. PVC has stable performance, is not easy to be corroded by acid and alkali, and is relatively resistant to heat. The third pipe 6 is made of TPU/PA material.

Optionally, the thickness of the first pipeline 2, the second pipeline 3 and the third pipeline 6 is 1-2mm.

Optionally, the length of the first pipeline 2 is H, and the length of the first connecting section 3a of the second pipeline 3 is H, where H satisfies: h is more than or equal to H and less than or equal to 2H. I.e. the length H of the first conduit 2 is greater than or equal to the length of the first connecting section 3a, and the length of the first conduit 2 is not greater than twice the length H of the first connecting section 3 a.

Optionally, the length of the second connecting section 3b is more than ten times that of the first connecting section 3a or the first pipeline 2; the length of the third pipe 6 is ten times or more than that of the first connecting section 3a or the first pipe 2.

Alternatively, the length of the first connecting section 3a and the first pipeline 2 is 5cm to 10cm.

In one embodiment, the end of the puncture outfit 5 remote from the filter 4 is pointed for connection with a medical fluid bottle. The puncture outfit 5 is movably provided with a protective cover 50. Further, the puncture outfit 5 is provided with a first channel 51 and a second channel 52, the first channel 51 is communicated with the filter 4, and the contrast medium or physiological saline in the liquid medicine bottle connected with the tip of the puncture outfit flows to the filter 4 through the first channel 51 and then flows to the second pipeline 3 after being filtered by the filter 4; the second channel 52 communicates with the outside through the air-permeable plug 53, so that after the contrast medium in the liquid medicine bottle is used, a vacuum state is not formed in the liquid medicine bottle, and the smooth use process is ensured. Optionally, the outer wall of the ventilation plug 53 is further provided with a gland 54, and when the protection cover 50 is covered on the puncture outfit 5, the inner wall of the protection cover 50 is attached to the outer wall of the gland 54.

When in use, firstly, the liquid medicine bottle filled with contrast agent is connected with the puncture outfit 5, namely the puncture outfit 5 can directly puncture the liquid medicine bottle, thereby conducting the liquid medicine bottle with the filter 4; next, the syringe is disposed at one end of the first pipeline 2 through the syringe connector 20, and then when the push rod of the syringe is pulled to retreat (when the syringe is used for sucking medicine), the first check valve 30 on the second pipeline 3 is turned on, the second check valve 60 on the third pipeline 6 is closed, the contrast medium of the liquid medicine bottle connected to the puncture outfit 5 is sucked into the syringe, and the blood of the patient cannot be sucked into the syringe, namely, the contrast medium sequentially passes through the filter 4, the second connecting section 3b, the first check valve 30, the first connector 31, the first connecting section 3a, the connecting pipe fitting 1 and the first pipeline 2 to enter the syringe. When the pull rod of the injection liquid is pushed (when the liquid medicine is injected), the first one-way valve 30 is closed, the second one-way valve 60 is conducted, the injector injects contrast medium into the patient and can not inhale the contrast medium from the liquid medicine bottle, namely, the contrast medium flows into the patient through the first pipeline 2, the connecting pipe fitting 1, the third pipeline 6, the second one-way valve 60, the second connector 61 and the infusion tube 7 in sequence. In use, the syringe may also be used to aspirate saline to flush the contrast agent. The medicine sucking and injection can be alternately and continuously carried out, the process does not need to plug a pipeline, time and labor are saved, and pollution risks caused by the operation process are avoided.

The positions and sizes of the components in the drawings are schematic, and the shapes of the connectors and the check valves are also schematic, and are only used for expressing the technical scheme idea, and the specific positions and sizes in the practical embodiment are not limited.

The details of this embodiment are not described in detail, and are known in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An infusion connection tube, comprising:

the connecting pipe fitting (1) is of a T-shaped structure and is provided with a first interface (10), a second interface (11) and a third interface (12), wherein the first interface (10) and the third interface (12) are symmetrically arranged;

one end of the first pipeline (2) is connected with the first connector (10), and the other end of the first pipeline is provided with an injector connector (20);

one end of the second pipeline (3) is connected with the second interface (11), and the other end of the second pipeline is connected with the puncture outfit (5) through the filter (4);

a support net (40) is arranged in the filter (4), a sharp top (41) is arranged at one end, close to the puncture outfit (5), of the support net (40), a filtering membrane (42) is wrapped on the outer wall of the support net (40), and a diversion gap is formed between the filtering membrane (42) and the inner wall of the shell of the filter (4);

one end of a third pipeline (6) is connected with the third interface (12), and the other end of the third pipeline is connected with a transfusion tube (7);

the second pipeline (3) and the third pipeline (6) are respectively provided with a first one-way valve (30) and a second one-way valve (60), and the flow directions of the fluid of the first one-way valve (30) and the fluid of the second one-way valve (60) are opposite; when liquid suction is performed, the first one-way valve (30) is conducted, the second one-way valve (60) is closed, and when liquid medicine is injected, the first one-way valve (30) is closed, and the second one-way valve (60) is conducted.

2. Connecting pipe according to claim 1, characterized in that the second pipeline (3) is a normal pressure pipeline and the third pipeline (6) is a high pressure pipeline.

3. Connecting tube according to claim 1, characterized in that the second pipe (3) is made of PVC material and the third pipe (6) is made of TPU/PA material.

4. Connecting pipe according to claim 1, characterized in that the second pipeline (3) comprises a first connecting section (3 a) and a second connecting section (3 b), one end of the first connecting section (3 a) is connected with the second interface (11), the other end is provided with a first joint (31), one end of the first one-way valve (30) is connected with the first joint (31), the other end is connected with one end of the second connecting section (3 b), and the other end of the second connecting section (3 b) is connected with the filter (4).

5. Connecting pipe according to claim 4, characterized in that the first pipe (2) has a length H and the first connecting section (3 a) of the second pipe (3) has a length H, H satisfying: h is more than or equal to H and less than or equal to 2H; the lengths of the second connecting section (3 b) and the third pipeline (6) are more than ten times the length of the first connecting section (3 a) or the first pipeline (2) respectively.

6. Connecting pipe according to claim 1, characterized in that the end of the puncture outfit (5) far away from the filter (4) is pointed, and a protective cover (50) is movably arranged on the puncture outfit (5).

7. Connecting tube according to claim 1 or 6, characterized in that the puncture device (5) has a first channel (51) and a second channel (52), the first channel (51) being in communication with the filter (4) and the second channel (52) being in communication with the outside through a venting plug (53).

8. The connecting tube according to claim 1, characterized in that the second one-way valve (60) is arranged at an end of the third tubing (6) remote from the third port (12), the second one-way valve (60) being in detachable sealing connection with the infusion tube (7) via a second joint (61).

9. The connecting tube according to claim 1, characterized in that the second one-way valve (60) is arranged at the third interface (12).