CN214550498U

CN214550498U - Needleless three-way valve

Info

Publication number: CN214550498U
Application number: CN202022099440.0U
Authority: CN
Inventors: 陆军; 陆维炜; 赵丽杰; 倪琳
Original assignee: Jiangsu Caina Medical Technology Co ltd
Current assignee: Jiangsu Caina Medical Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-11-02
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a needleless three-way valve, which comprises a three-way valve body, a sealing plug and an end cover which are arranged from bottom to top in sequence, wherein the middle upper part of the inner cavity of the three-way valve body is provided with a sealing diaphragm plate, the sealing diaphragm plate is provided with an opening, and the upper part of the inner cavity of the three-way valve body is fixedly provided with a puncture thimble matched with the opening; the sealing plug is sleeved at the upper end of the three-way valve body, the end cover is sleeved on the sealing plug, and the end cover is also provided with a luer connector connected with other infusion tubes. The utility model discloses do not have the puncture syringe needle when adding the medicine, avoided medical personnel and patient to be stabbed when clinical puncture adds the medicine and uses to the mixing of its many liquid medicines of this needleless tee bend is effectual.

Description

Needleless three-way valve

Technical Field

The utility model relates to a needleless three-way valve.

Background

In medical treatment, two kinds of liquid medicines and a plurality of liquid medicines are required to be injected simultaneously, the liquid medicines are required to be fully mixed before injection, a single-channel infusion apparatus cannot meet the existing medical requirements, and therefore a tee joint for realizing multi-liquid medicine infusion is formed. The traditional tee joint with the latex cap or the latex injection piece has the defects that a syringe needle is needed for puncture medicine adding, and medical care personnel and patients are easily punctured when in clinical puncture medicine adding.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a needleless three-way valve, do not have the puncture syringe needle when adding the medicine, avoided medical personnel and patient to be stabbed when clinical puncture adds the medicine use to the mixing of its many liquid medicines of this needleless tee is effectual.

In order to achieve the purpose, the technical scheme of the utility model is to design a needleless three-way valve, which comprises a three-way valve body, a sealing plug and an end cover which are arranged from bottom to top in sequence, wherein the middle upper part of the inner cavity of the three-way valve body is provided with a sealing diaphragm plate, the sealing diaphragm plate is provided with an opening, and the upper part of the inner cavity of the three-way valve body is fixedly provided with a puncture thimble matched with the opening; the sealing plug is sleeved at the upper end of the three-way valve body, the end cover is sleeved on the sealing plug, and the end cover is also provided with a luer connector connected with other infusion tubes. When the infusion of mixed liquid medicine is required, the end cover is connected with the infusion tube above through the luer connector, the infusion tube on the side of the side is connected with the infusion tube on the side of the three-way valve, and then the opening on the sealing transverse partition plate is jacked open by the puncture thimble through pressing the end cover downwards (because the tee joint adopts the elastic material of silica gel), so that the mixing of two liquid medicines is realized (the puncture thimble can adopt hard silica gel for better ensuring the effect of jacking open of the puncture thimble). The material of tee bend valve body adopts antibiotic silica gel better.

The further technical proposal is that the three-way valve body comprises a mixing tube in a straight tube shape and a transfusion tube communicated with the mixing tube, and the transfusion tube and the mixing tube are arranged in an inclined way at a certain included angle.

The further technical scheme is that the infusion tube comprises a main tube and a plurality of liquid separating tubes communicated with the main tube, the tube diameter of each liquid separating tube is smaller than the tube diameter of the main tube, the tube openings of the liquid separating tubes are communicated with the mixing tube, and the tube openings of the liquid separating tubes are dispersed on the inner wall of the mixing tube. So that the liquid medicine entering the infusion tube can be more fully mixed with another liquid medicine after being shunted by the liquid dividing tube, thereby strengthening the mixing effect of the utility model.

The further technical scheme is that the sealing diaphragm plate is made of the same silica gel material as the three-way valve body and divides the branch-pipe-shaped mixing pipe into an upper half part and a lower half part.

The further technical scheme is that the puncturing thimble is made of hard silica gel and the maximum size of the puncturing thimble is smaller than the length of the opening. Therefore, the puncture thimble pushes the opening to facilitate the liquid medicine above to flow downwards.

The utility model has the advantages and the beneficial effects that: when in medicine adding, a puncture injection needle is not arranged, thereby preventing medical staff and patients from being punctured when in clinical puncture medicine adding, and the needleless tee has good mixing effect of a plurality of liquid medicines. When the infusion of mixed liquid medicine is required, the end cover is connected with the infusion tube above through the luer connector, the infusion tube on the side of the side is connected with the infusion tube on the side of the three-way valve, and then the opening on the sealing transverse partition plate is jacked open by the puncture thimble through pressing the end cover downwards (because the tee joint adopts the elastic material of silica gel), so that the mixing of two liquid medicines is realized (the puncture thimble can adopt hard silica gel for better ensuring the effect of jacking open of the puncture thimble). The liquid medicine that gets into the transfer line can more intensive mixing through dividing the liquid back of liquid pipe reposition of redundant personnel with another liquid medicine, has strengthened the utility model discloses a mix the effect.

Drawings

Fig. 1 is an exploded view of a needleless three-way valve of the present invention;

FIG. 2 is an installation view of FIG. 1;

FIG. 3 is a longitudinal section of FIG. 2;

figure 4 is a longitudinal section of the sealing plug of figure 1;

FIG. 5 is a schematic view of the upper end of the three-way valve body of FIG. 1;

FIG. 6 is a longitudinal sectional view of FIG. 5;

fig. 7 is a schematic view of the portion of the infusion tube and mixing tube of the present invention.

In the figure: 1. a three-way valve body; 2. a sealing plug; 3. an end cap; 4. sealing the diaphragm plate; 5. puncturing a thimble; 6. a luer fitting; 7. a mixing tube; 8. a transfusion tube; 9. a main pipe; 10. a liquid separating pipe.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 7 (for convenience of illustration, the main pipe and the liquid dividing pipe are not shown in fig. 1 to 6), the present invention relates to a needleless three-way valve, which comprises a three-way valve body 1, a sealing plug 2 and an end cover 3, which are sequentially arranged from bottom to top, wherein a sealing diaphragm plate 4 is arranged at the middle upper part of the inner cavity of the three-way valve body 1, an opening is arranged on the sealing diaphragm plate 4, and a puncturing thimble 5 adapted to the opening is fixedly arranged at the upper part of the inner cavity of the three-way valve body 1; the sealing plug 2 is sleeved on the upper end of the three-way valve body 1, the end cover 3 is sleeved on the sealing plug 2, and the end cover 3 is also provided with a luer connector 6 connected with other infusion tubes 8. The three-way valve body 1 comprises a mixing pipe 7 in a straight pipe shape and a transfusion pipe 8 communicated with the mixing pipe 7, and the transfusion pipe 8 and the mixing pipe 7 are obliquely arranged at a certain included angle. The liquid conveying pipe 8 comprises a main pipe 9 and a plurality of liquid separating pipes 10 communicated with the main pipe 9, the pipe diameters of the liquid separating pipes 10 are smaller than the pipe diameters of the main pipe 9, the pipe orifices of the liquid separating pipes 10 are communicated with the mixing pipe 7, and the pipe orifices of the liquid separating pipes 10 are dispersed on the inner wall of the mixing pipe 7. The sealing diaphragm plate 4 is made of the same silica gel material as the three-way valve body 1, and the branch tubular mixing pipe 7 is divided into an upper half part and a lower half part by the sealing diaphragm plate 4. The puncture thimble 5 is made of hard silica gel material and the maximum size of the puncture thimble 5 is smaller than the length of the opening.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A needleless three-way valve is characterized by comprising a three-way valve body, a sealing plug and an end cover which are sequentially arranged from bottom to top, wherein a sealing diaphragm plate is arranged at the middle upper part of an inner cavity of the three-way valve body, an opening is arranged on the sealing diaphragm plate, and a puncture thimble matched with the opening is fixedly arranged at the upper part of the inner cavity of the three-way valve body; the sealing plug is sleeved at the upper end of the three-way valve body, the end cover is sleeved on the sealing plug, and the end cover is also provided with a luer connector.

2. The needle-free three-way valve according to claim 1, wherein the three-way valve body comprises a mixing tube in a straight tube shape and a liquid transfer tube communicated with the mixing tube, and the liquid transfer tube and the mixing tube are obliquely arranged at a certain included angle.

3. The needle-free three-way valve according to claim 2, wherein the liquid transfer tube comprises a main tube and a plurality of liquid distribution tubes communicated with the main tube, the diameter of the liquid distribution tube is smaller than the diameter of the main tube, the openings of the liquid distribution tubes are communicated with the mixing tube, and the openings of the liquid distribution tubes are dispersed on the inner wall of the mixing tube.

4. The needleless three-way valve according to claim 2 or 3, wherein the sealing diaphragm is made of the same silica gel material as the three-way valve body, and the sealing diaphragm divides the branched mixing tube into an upper half and a lower half.

5. The needleless three-way valve according to claim 4, wherein the puncturing thimble is made of hard silica gel and the maximum size of the puncturing thimble is smaller than the length of the opening.