CN219148775U

CN219148775U - Multi-channel positive pressure infusion connector and infusion tube

Info

Publication number: CN219148775U
Application number: CN202222101363.7U
Authority: CN
Inventors: 张慧丽; 崔伟霞; 张红超; 陈霞; 高宏文; 李畅
Original assignee: Air Force Specialty Medical Center of PLA
Current assignee: Air Force Specialty Medical Center of PLA
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-06-09
Anticipated expiration: 2032-08-10

Abstract

The utility model provides a multi-channel positive pressure infusion connector and an infusion tube, which relate to the technical field of medical equipment and are used for solving the problems of inconvenient operation and heavy weight caused by multi-channel drug delivery realized by connecting a plurality of three-way connectors in the prior art. The multi-channel positive pressure infusion connector has the advantages of small volume, light weight, no need of assembly, no need of a switch, simple and convenient operation and assembly time saving.

Description

Multi-channel positive pressure infusion connector and infusion tube

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a multi-channel positive pressure infusion connector and an infusion tube.

Background

Critical patients or major surgery patients often require the simultaneous infusion of vasoactive drugs, analgesic sedatives, etc. using multiple microinjection pumps, and therefore are typically administered by connecting a central venous catheter or picc catheter to multiple micropump tubes and infusers.

The existing transfusion connector and the three-way connector are generally single passages, multiple passages can be used only by connecting and combining the three-way connectors, nuts are arranged at the positions of the connectors, when the transfusion connector and the three-way connector are used, the three-way connector can be used only by unscrewing the nuts to open the three-way switch, the three-way connector is used in a connecting way, the pollution opportunity is increased, the transfusion connector is easy to loose and fall off, the liquid leakage and the blood leakage are easy to occur, the three-way connector is connected to form a longer section, the transfusion connector is large in weight and easy to fold, the pump pipe is easy to wind, the transfusion connector is inconvenient to fix, and the contact surface of the skin of a patient and the three-way connector is easy to be crushed, so that obvious indentations and even pressure sores are generated. The medicine can be administered only by opening a plurality of three-way valves, and medical staff operation or patient position change easily causes the three-way valve switch to shift, so that the three-way valve switch is not communicated, the condition change of a patient is affected due to unsmooth medicine infusion, potential safety hazards exist, and the work load is increased.

Disclosure of Invention

The utility model aims to provide a multi-channel positive pressure infusion connector and an infusion tube, which are used for solving the problems of inconvenient operation and heavy weight caused by multi-channel drug delivery realized by connecting a plurality of three-way connectors in the prior art.

The utility model provides a multi-channel positive pressure transfusion joint which comprises a joint main body, wherein the joint main body comprises a main pipe and a plurality of branch pipes, the plurality of branch pipes are connected to the main pipe and are communicated with the inside of the main pipe, an inlet end of the main pipe and an inlet end of the branch pipe are respectively provided with an elastic plug for sealing an inlet, and an outlet end of the main pipe is provided with a connecting piece for connecting with a transfusion pipe.

As a preferable mode of the present utility model, the plurality of branch pipes are provided on both sides of the main pipe and distributed along the longitudinal direction of the main pipe, and the branch pipes on both sides of the main pipe are provided symmetrically with respect to the axis of the main pipe.

In a preferred embodiment of the present utility model, the branch pipe is connected to the main pipe from the inlet end of the main pipe to the outlet end of the main pipe in an inclined manner, and the branch pipe is disposed at an acute angle to the inlet end of the main pipe.

As a preferable scheme of the utility model, the elastic plug comprises a connector and a silicone valve or a separation membrane, wherein the connector is of a hollow structure, and the silicone valve or the separation membrane is respectively connected in the connector.

As a preferred scheme of the utility model, the connector comprises an upper cover and a lower cover, the silica gel valve is arranged in a cavity formed by connecting the upper cover and the lower cover, an inner cavity is arranged in the silica gel valve, the diameter of the upper end of the silica gel valve is smaller than that of the lower end of the silica gel valve, a notch is arranged on the side surface of the upper end of the silica gel valve, the upper end of the silica gel valve is attached to the inner wall of the upper cover, a medicine liquid flow channel is formed between the lower end of the upper cover and the lower end of the silica gel valve, a boss extending upwards is arranged on the lower cover, the lower end of the silica gel valve is in sealing connection with the boss, a through hole which enables the inner cavity of the silica gel valve to be communicated with the outside air is formed in the boss inner side of the lower cover, an outlet groove which is communicated with a liquid outlet end is formed in the upper end of the lower cover, an external thread is arranged on the outer side of the upper end of the upper cover, and a luer cone connector is arranged at the lower end of the lower cover.

As a preferred scheme of the utility model, the separation membrane comprises a backflow prevention valve and a backflow prevention duckbill valve, the backflow prevention valve is arranged at the inlet of the connector, the backflow prevention duckbill valve is arranged at the inner side of the inlet of the connector, an external thread is arranged at the outer side of the inlet end of the connector, a connector part is arranged at the outlet end of the connector in a downward extending way, and the outer diameter of the connector part is smaller than that of the upper end of the connector.

As a preferable scheme of the utility model, the connecting piece is a threaded cap, a limiting ring is arranged at the outlet end of the main pipe, the limiting ring is arranged along the circumference of the main pipe, the threaded cap is provided with a through hole and sleeved on the main pipe through the through hole, and the limiting ring is clamped in the threaded cap.

As a preferable mode of the utility model, a transparent silica gel pad is arranged on the outer side of the main pipe, and the silica gel pad is arranged along the length direction of the main pipe.

As a preferable mode of the present utility model, the main pipe and the plurality of branch pipes are integrally formed, and the joint body is formed in a transparent structure.

The utility model also provides an infusion tube, which comprises the multi-channel positive pressure infusion connector.

Compared with the prior art, the utility model has the following positive effects:

1. the multi-channel positive pressure transfusion joint provided by the utility model comprises a joint main body, wherein the joint main body comprises a main pipe and a plurality of branch pipes, the plurality of branch pipes are connected to the main pipe and are communicated with the inside of the main pipe, the inlet end of the main pipe and the inlet end of the branch pipe are respectively provided with an elastic plug for sealing the inlet, and the outlet end of the main pipe is provided with a connecting piece for connecting with a transfusion pipe. When the multichannel positive pressure infusion connector is used, the multichannel simultaneous administration can be realized by administering at the inlet end of the branch pipe or the main pipe, and the multichannel positive pressure infusion connector is small in size, light in weight, free of assembly and switch, simple and convenient to operate, time-saving in assembly, and time-saving and labor-saving; in addition, the sealing performance is good, the phenomenon of liquid leakage and blood leakage is avoided, the pipe blocking rate is reduced, and the infection risk of patients is reduced; furthermore, no redundant parts exist, the reasons are easy to be checked when the administration is not smooth, and the phenomenon that the parts are left on a sickbed to cause the patient to be injured by pressure is reduced.

2. The infusion tube provided by the utility model can realize multi-channel administration by arranging the multi-channel positive pressure infusion connector, and has the advantages of simple structure, convenience in use, low manufacturing cost, strong practicability and easiness in popularization and use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, 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 view of the structure of a multi-channel positive pressure infusion connector in example 1;

fig. 2 is a schematic view showing the internal structure of the elastic plug in embodiment 1;

fig. 3 is a schematic view showing the internal structure of the elastic plug in embodiment 2.

In the figure: 1. a main pipe; 11. a limiting ring; 2. a branch pipe; 3. an elastic plug; 31. a connector; 311. an upper cover; 312. a lower cover; 313. a clamping block; 314. an external thread; 315. luer taper; 316. an outlet slot; 317. a through hole; 318. a boss; 319. an interface part; 32. a silicone valve; 322. a notch; 321. a drug flow channel; 33. a separation membrane; 331. an anti-reflux valve; 332. an anti-reflux duckbill valve; 4. a threaded cap; 5. and a silica gel pad.

Detailed Description

In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the utility model based on the orientation or positional relationship shown in the drawings 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 utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Example 1:

the multi-channel positive pressure infusion connector provided by the embodiment, as shown in fig. 1-2, comprises a connector main body, wherein the connector main body comprises a main pipe 1 and a plurality of branch pipes 2, the plurality of branch pipes 2 are connected to the main pipe 1 and are communicated with the inside of the main pipe 1, an elastic plug 3 for sealing an inlet is respectively arranged at an inlet end of the main pipe 1 and an inlet end of the branch pipe 2, and a connecting piece for connecting with an infusion tube is arranged at an outlet end of the main pipe 1.

When the multi-channel positive pressure infusion connector is used, multi-channel simultaneous administration can be realized by administering at the inlet end of the branch pipe 2 or the main pipe 1, the volume is small, the weight is light, the traction on the central venous catheter or the picc catheter is reduced, the risk of tube removal is reduced, the operation is simple and convenient, the assembly time is saved, and the time and the labor are saved; in addition, the sealing performance is good, the phenomenon of liquid leakage and blood leakage is avoided, the pipe blocking rate is reduced, and the infection risk of patients is reduced; furthermore, no redundant parts are needed, assembly is not needed, a switch is not arranged, the reasons are easy to check when the medicine is not smooth, and the phenomenon that the parts are left on a sickbed to cause the patient to be injured by pressure is reduced.

Preferably, the plurality of branch pipes 2 are respectively disposed at both sides of the main pipe 1 and distributed along the length direction of the main pipe 1, and the branch pipes 2 at both sides of the main pipe 1 are symmetrically disposed about the axis of the main pipe 1. A Y-shaped structure is formed between the branch pipe 2 and the main pipe 1, so that the folding and winding probability of the pipeline is reduced, and the smoothness of the joint main body is maintained.

Preferably, the branch pipe 2 is connected to the main pipe 1 from the inlet end of the main pipe 1 to the outlet end of the main pipe 1 in an inclined manner, and the branch pipe 2 and the inlet end of the main pipe 1 are arranged at an acute angle, so that the liquid medicine fed during the administration of the branch pipe 2 can flow along the branch pipe 2 to the outlet end of the main pipe 1 and flow into the infusion tube

Preferably, the elastic plug 3 comprises a connector 31 and a silicone valve 32, the connector 31 is of a hollow structure, and the silicone valve 32 is connected in the connector 31. The elastic plug 3 can ensure the tightness of the joint main body and avoid the phenomenon of liquid leakage and blood leakage.

Preferably, the connection head 31 includes an upper cover 311 and a lower cover 312. The silicone valve 32 is disposed in a cavity formed by connecting the upper cover 311 and the lower cover 312, and an inner cavity is disposed in the silicone valve 32, and the diameter of the upper end of the inner cavity is smaller than that of the lower end of the inner cavity. A notch 322 is arranged on the side surface of the upper end of the silica gel valve 32, and the upper end of the silica gel valve 32 is attached to the inner wall of the upper cover 311. A liquid medicine flow passage 321 is formed between the lower end of the upper cover 311 and the lower end of the silicone valve 32. The lower cover 312 is provided with an upward extending boss 318, the lower end of the silica gel valve 32 is in sealing connection with the boss 318, the inner side of the boss 318 of the lower cover is provided with a through hole 317 which enables the inner cavity of the silica gel valve to be communicated with the outside atmosphere, the upper end of the lower cover 312 is provided with an outlet groove 316 which is communicated with a liquid outlet end, the outer side of the upper end of the upper cover 311 is provided with an external thread 314, and the lower end of the lower cover 312 is provided with a luer cone joint 315. Wherein, upper cover 311 is welded with lower cover 312, or upper cover 311 and lower cover 312 are integrated.

When the elastic plug 3 of this embodiment is used, in a natural state, the upper end of the silica gel valve 32 is tightly attached to the upper end of the upper cover 311, the shoulder of the silica gel valve 32 is tightly attached to the upper cover, when the administration connector extrudes the upper end of the silica gel valve 32, the silica gel valve 32 deforms, so that the opening 322, the liquid medicine flow channel 321 and the outlet groove 316 of the lower cover communicated with the liquid outlet end are communicated to form an administration channel, and meanwhile, the lower end of the silica gel valve 32 is tightly embedded with the boss 318 of the lower cover, so that the silica gel valve 32 is not easy to displace under the condition of deformation, and the smoothness of the administration channel is not affected.

When the administration is finished, the administration connector is pulled out, and the inner cavity of the silica gel valve 32 is communicated with the atmosphere due to the ventilation through hole of the lower cover, so that the silica gel valve 32 can be easily restored, and meanwhile, the eccentric notch 322 can squeeze air to generate negative pressure, so that liquid in the administration channel can be automatically pushed forward, thereby avoiding blood backflow, saving liquid medicine and reducing the residual of the liquid medicine in the connector.

Preferably, the connecting piece is screw cap 4, is provided with spacing ring 11 at the exit end of being responsible for 1, and spacing ring 11 sets up along the circumference of being responsible for 1, is provided with the perforation on the screw cap 4 and overlaps on being responsible for 1 through the perforation, and spacing ring 11 card is in screw cap 4. The outlet end of the main pipe 1 is connected with the infusion tube through the screw cap 4, and the connection is simple and convenient and firm.

Preferably, the outside of being responsible for 1 is provided with transparent silica gel pad 5, and silica gel pad 5 sets up along the length direction who is responsible for 1, prevents that patient's skin from being damaged by, and transparent silica gel pad 5 can be convenient for observe the condition of dosing in being responsible for 1, is convenient for control flow or easily investigation reason when dosing is unsmooth. In addition, the surface of the joint main body is smooth, and has better touch feeling.

In addition, the silica gel pad 5 can also extend to the branch pipe 2 to fully protect the skin of a patient and prevent the skin from being hurt easily.

Preferably, the main pipe 1 and the plurality of branch pipes 2 are of an integrated structure, and the manufacturing is simple and the cost is low. The joint main body is of a transparent structure, so that the internal condition of the joint main body can be observed conveniently.

Example 2

The difference between this embodiment and embodiment 1 is that, as shown in fig. 3, the elastic plug 3 in this embodiment includes a connector 31 and a separating membrane 33, the connector 31 is of a hollow structure, and the separating membrane 33 is connected in the connector 31. The elastic plug 3 can ensure the tightness of the joint main body and avoid the phenomenon of liquid leakage and blood leakage. The separation membrane 33 has a good sealing property.

Preferably, the separation membrane 33 includes a backflow prevention valve 331 and a backflow prevention duckbill valve 332, the backflow prevention valve 331 is disposed at an inlet of the connection head 31, and the backflow prevention duckbill valve 332 is disposed inside the inlet of the connection head 31. The anti-countercurrent valve 331 is in a pointed cone structure, the lower end of the anti-countercurrent duckbill valve 332 is in a flat mouth structure, the anti-countercurrent valve 331 and the anti-countercurrent duckbill valve 332 enable the elastic plug 3 to have good square backflow performance, liquid medicine can only flow from the inlet end to the outlet end of the connector 31, and the sealing performance and the backflow prevention performance of the double-layer membrane are enhanced, so that the inlet end of the connector 31 is protected in a double-layer manner.

The connector 31 is provided with external threads 314 on the outside of the inlet end and is connected to the administration connector by external threads 314.

The outlet end of connector 31 is provided with downwardly extending and is provided with interface portion 319, and the external diameter of interface portion 319 is less than the external diameter of connector 31 upper end, and connector 31 is connected with be responsible for 1 or lateral pipe 2, can cup joint and be responsible for 1 or lateral pipe 2 and connect on interface portion 319.

The connector 31 of the elastic plug 3 in this embodiment includes a layer of anti-backflow valve 331 and a layer of anti-backflow duckbill valve 332, so that the valve is automatically closed after the pressure is finished after the administration is finished, liquid cannot leak, the indwelling venous line is guaranteed to be in a positive pressure state, and the blockage of the connector main body and the generation of thrombus are avoided.

Example 3

This embodiment provides an infusion tube comprising the multi-channel positive pressure infusion connector of embodiment 1 or embodiment 2.

The infusion tube of the embodiment can realize multi-channel drug delivery, has the advantages of simple structure, convenient use, low manufacturing cost, strong practicability and easy popularization and application.

The above description is only of the preferred embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present utility model.

Claims

1. The utility model provides a multichannel malleation infusion connects, its characterized in that, includes the joint main part, the joint main part is including being responsible for (1) and a plurality of bleeder (2), a plurality of bleeder (2) connect in on being responsible for (1) and with be responsible for (1) inside intercommunication be responsible for the entry end of (1) with the entry end of bleeder (2) is provided with respectively and is used for sealed entry elasticity end cap (3) be responsible for the exit end of (1) and be provided with the connecting piece that is used for being connected with the transfer line.

2. The multi-channel positive pressure infusion connector according to claim 1, wherein the plurality of branch pipes (2) are respectively arranged at two sides of the main pipe (1) and distributed along the length direction of the main pipe (1), and the branch pipes (2) at two sides of the main pipe (1) are symmetrically arranged about the axis of the main pipe (1).

3. The multi-channel positive pressure infusion connector according to claim 2, wherein the branch pipe (2) is obliquely connected to the main pipe (1) from the inlet end of the main pipe (1) to the outlet end of the main pipe (1), and an acute angle is formed between the branch pipe (2) and the inlet end of the main pipe (1).

4. The multi-channel positive pressure infusion connector according to claim 1, wherein the elastic plug (3) comprises a connector (31) and a silicone valve (32) or a separation membrane (33), the connector (31) is of a hollow structure, and the silicone valve (32) or the separation membrane (33) are respectively connected in the connector (31).

5. The multi-channel positive pressure infusion connector according to claim 4, wherein the connector (31) comprises an upper cover (311) and a lower cover (312), the silica gel valve (32) is arranged in a cavity formed by connecting the upper cover (311) with the lower cover (312), an inner cavity is formed in the silica gel valve (32), the diameter of the upper end of the silica gel valve is smaller than that of the lower end of the silica gel valve, a notch (322) is formed in the side face of the upper end of the silica gel valve (32), the upper end of the silica gel valve (32) is attached to the inner wall of the upper cover (311), a liquid medicine flow channel (321) is formed between the lower end of the upper cover (311) and the lower end of the silica gel valve (32), a boss (318) extending upwards is arranged on the lower cover (312), the lower end of the silica gel valve (32) is in sealing connection with the boss (318), a through hole (317) which enables the inner cavity of the silica gel valve to be communicated with the outside atmosphere is formed in the boss (318), a conical nipple (316) is arranged at the upper end of the lower cover (312), and a luer (315) is arranged at the outer side of the outlet end of the lower cover (312).

6. The multi-channel positive pressure infusion connector according to claim 4, wherein the separation membrane (33) comprises an anti-reflux valve (331) and an anti-reflux duckbill valve (332), the anti-reflux valve (331) is arranged at the inlet of the connector (31), the anti-reflux duckbill valve (332) is arranged at the inner side of the inlet of the connector (31), an external thread (314) is arranged at the outer side of the inlet end of the connector (31), an interface part (319) is arranged at the outlet end of the connector (31) in a downward extending manner, and the outer diameter of the interface part (319) is smaller than the outer diameter of the upper end of the connector (31).

7. The multi-channel positive pressure infusion connector according to claim 1, wherein the connecting piece is a threaded cap (4), a limiting ring (11) is arranged at the outlet end of the main tube (1), the limiting ring (11) is arranged along the circumference of the main tube (1), a through hole is formed in the threaded cap (4) and sleeved on the main tube (1) through the through hole, and the limiting ring (11) is clamped in the threaded cap (4).

8. The multi-channel positive pressure infusion connector according to claim 1, wherein a transparent silica gel pad (5) is arranged on the outer side of the main tube (1), and the silica gel pad (5) is arranged along the length direction of the main tube (1).

9. The multi-channel positive pressure infusion connector according to claim 1, wherein the main tube (1) and the plurality of branch tubes (2) are of an integral structure, and the connector body is of a transparent structure.

10. An infusion tube comprising the multi-channel positive pressure infusion connector of any one of claims 1-9.