CN213432260U

CN213432260U - Y-shaped positive-pressure needleless connecting piece

Info

Publication number: CN213432260U
Application number: CN202021828449.4U
Authority: CN
Inventors: 张力峰; 沈哲君
Original assignee: Shenzhen Meijin Medical Equipment Co ltd
Current assignee: Shenzhen Meijin Medical Equipment Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-06-15
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to a medical infusion apparatus technical field discloses Y type malleation needleless connecting piece, which comprises an outer shell, the inside cavity form that is of shell, and inside with the medicine infusion mechanism that sets up on the shell outer wall is linked together, the inside of shell is provided with the plug, the upper portion of plug is equipped with the upper end of rubber stopper, the upper end of rubber stopper forms seal structure with the shell inner wall, the lower part of plug is equipped with tip under the plug, the tip cup joints on the end cover lateral wall under the plug, just be provided with the inner chamber in the plug, inner chamber upper portion is provided with the intercommunication groove, the exhaust hole of the inside both sides of inner chamber lower part intercommunication end cover, the terminal intercommunication outside of exhaust hole. The utility model discloses utilize medicine infusion mechanism can realize infusing multiple medicine simultaneously on a needleless connecting piece, save the use amount of consumptive material, save the cost, to the cytotoxic drug, reduced the possibility of revealing, protection medical personnel's health.

Description

Y-shaped positive-pressure needleless connecting piece

Technical Field

The utility model relates to the technical field of medical infusion apparatus, in particular to a Y-shaped positive pressure needleless connecting piece.

Background

The positive pressure joint is a needle-free closed infusion joint, has the advantages of simple operation, needle stick injury prevention, effective reduction of blood return blockage, prolonged tube placing time and the like because the positive pressure is generated instantly when the injector is pulled out, and is commonly used for connecting vein tubes.

When the syringe is pulled down, the positive pressure joint can produce a positive pressure, automatically makes the liquid in the plug impel forward to avoid blood to flow back and keep somewhere the needle and form the thrombus, thereby prevent to keep somewhere the jam of needle.

However, in practical application, if the transported liquid contains macromolecular tissue structures such as blood, the arrangement of the diversion trench easily scratches blood cells, thereby affecting the curative effect of transfusion. Meanwhile, the arrangement of the diversion trench can form dead corners on the inner wall of the upper cover, so that medicine residues are caused, and the accuracy of the medicine dosage is influenced. So the patent application provides a positive pressure needleless connecting piece, which solves the technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a Y type malleation needleless connecting piece, utilize medicine infusion mechanism can realize infusing multiple medicine simultaneously on a needleless connecting piece, save the use amount of consumptive material, the cost is saved, to the cytotoxic drug, the possibility of revealing has been reduced, protect medical personnel's healthy advantage, solved because needleless connecting piece need frequently change liquid when using, so also need follow the change to needleless connecting piece, thereby nurse's work load has been increased, and the pollution is revealed to the medicine when changing, and the toxic action of toxic medicine can threaten nurse's the healthy problem of the person.

According to the utility model discloses Y type malleation needleless connecting piece, which comprises an outer shell, the inside cavity form that is of shell, and inside with the medicine infusion mechanism that sets up on the shell outer wall is linked together, the inside of shell is provided with the plug, the upper portion of plug is equipped with the upper end of plug, the upper end of plug forms seal structure with the shell inner wall, the lower part of plug is equipped with the tip under the plug, cup joint on the end cover lateral wall under the plug, just be provided with the inner chamber in the plug, inner chamber upper portion is provided with the intercommunication groove, the exhaust hole of the inside both sides of inner chamber lower part intercommunication end cover, the terminal intercommunication outside of exhaust hole still be provided with the liquid outlet on the end cover of exhaust hole lower part, the bottom of shell extends to on the end cover, end cover and shell thread.

Further, the medicine infusion mechanism includes a plurality of branch pipes, the end of branch pipe outwards inclines and is 30 ~ 45 with the contained angle between the casing.

Further, the rubber plug side wall is arranged outside the rubber plug and is in a thread shape.

Further, seal structure is including setting up the slope profile on the shell inner wall, the upper portion of slope profile is contradicted with plug upper end and is formed upper portion sealedly.

Furthermore, the upper portion of plug still is provided with the plug shoulder, the plug shoulder is inconsistent with the lower part of slope profile and is formed middle part sealed.

Furthermore, a convex block is arranged on the outer wall of the upper part of the shell and is integrally formed with the shell.

Further, the communicating groove extends out of the inner wall of the shell to the upper end part of the shell, and the upper end of the communicating groove is flush with the upper end part of the shell.

Compared with the prior art, the utility model beneficial effect who has is:

1. the medicine infusion mechanism can be used for simultaneously infusing various medicines on one needleless connecting piece, so that the consumption of consumables is reduced, and the cost is saved; if vein spasm occurs during the infusion process, ordinary liquid can be injected at any time; the potential pollution caused by increasing the medicine access is avoided, the flushing is convenient, the working efficiency is improved, the possibility of leakage of cytotoxic medicines is reduced, and the health of medical care personnel is protected.

2. The plug lateral wall is for the screw thread shape, when bulldozing through external connection joint, and the plug upper end is in axial plane and removes until the shell middle part, and the separation just forms the runner of liquid medicine between shell inner wall and the plug tip promptly, can avoid too early formation runner to bring external bacterium dust etc. into the infusion liquid, has guaranteed the cleanness of infusion liquid, sanitary safety.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an exploded view of the structure of the Y-shaped positive-pressure needleless connector of the present invention;

fig. 2 is a cross-sectional view of the connection between the Y-shaped positive pressure needleless connection member and the connection joint of the present invention.

In the figure: 1-shell, 11-upper end of shell, 12-inner wall of shell, 13-lug, 14-branch pipe, 2-rubber plug, 21-upper end of rubber plug, 22-side wall of rubber plug, 23-lower end of rubber plug, 24-communicating groove, 25-shoulder of rubber plug, 26-inner cavity, 3-end cover, 31-vent hole, 32-side wall of end cover, 33-liquid outlet and 4-connecting joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-2, the preferred embodiment of the present invention is shown.

The Y-shaped positive-pressure needleless connector comprises a shell 1, wherein the shell 1 is hollow, the interior of the shell is communicated with a medicine infusion mechanism arranged on the outer wall of the shell 1, a rubber plug 2 is arranged in the shell 1, the upper part of the rubber plug 2 is provided with a rubber plug upper end part 21, the rubber plug upper end part 21 and the shell inner wall 12 form a sealing structure, the lower part of the rubber plug 2 is provided with a rubber plug lower end part 23, the rubber plug lower end part 23 is sleeved on the side wall of an end cover 3, an inner cavity 26 is arranged in the rubber plug 2, the upper part of the inner cavity 26 is provided with a communicating groove 24, the lower part of the inner cavity 26 is communicated with exhaust holes 31 on two sides in the end cover 3, the tail ends of the exhaust holes 31 are communicated with the outside, a liquid outlet 33 is further arranged on the end cover 3 at the lower part of the exhaust, sanitary safety, the bottom of shell 1 extends to on the end cover 3, and

end cover

3 and 1 threaded seal of shell are connected to it forms circulation channel to realize that 1 inside and 3 inside intercommunications of end cover of shell.

In this embodiment, the drug infusion mechanism includes a plurality of branch tubes 14, the ends of the branch tubes 14 are inclined outward, and the included angle between the branch tubes and the housing 1 is 30-45 °, in this embodiment, 1 branch tube 14 can be used for simultaneously infusing a plurality of drugs on one needleless connector, so that the consumption of consumables is reduced, and the cost is saved; if vein spasm occurs during the infusion process, ordinary liquid can be injected at any time; the potential pollution caused by increasing the medicine access is avoided, the flushing is convenient, the working efficiency is improved, the possibility of leakage of cytotoxic medicines is reduced, and the health of medical care personnel is protected.

In this embodiment, 2 outsides of plug are provided with plug lateral wall 22, and plug lateral wall 22 is the screw thread shape, and it is little to account for the space, is convenient for simultaneously compressed the emergence deformation, also is convenient for recover.

In this embodiment, the sealing structure includes the slope profile that sets up on the shell inner wall 12, the upper portion of slope profile and the upper end 21 of the rubber stopper are inconsistent and are formed upper portion sealed, the upper portion of rubber stopper 2 still is provided with rubber stopper shoulder 25, rubber stopper shoulder 25 and the lower part of slope profile are inconsistent and are formed middle part sealed, upper portion is sealed when bulldozing through external connection joint 4, the upper end 21 is in axial plane removal and until reaching shell 1 middle part, just separate the runner that just forms the liquid medicine between shell inner wall 12 and the upper end 21 of the rubber stopper, can avoid forming the runner prematurely and bring external bacterium dust etc. into the infusion liquid, guaranteed the cleanness of infusion liquid, sanitary safety.

In this embodiment, a protrusion 13 is disposed on an upper outer wall of the housing 1, and the protrusion 13 is integrally formed with the housing 1, so as to facilitate taking the housing 1.

In this embodiment, the communicating groove 24 extends from the inner wall 12 of the housing to the upper end portion 11 of the housing, and the upper end of the communicating groove 24 is flush with the upper end portion 11 of the housing, the upper end portion 21 of the rubber plug abuts against the external connecting joint 4, the internal diameter of the connecting joint 4 is communicated with the communicating groove 24, the connecting joint 4 pushes and presses downwards to make the upper end portion 21 of the rubber plug contact with the middle portion of the housing, the inner wall 12 of the housing forms a flow guide channel, the liquid medicine flows in from the communicating groove 24 and flows through a liquid outlet through the inner wall of the housing, after the external force of the connecting joint 4 is removed, the exhaust hole 31 sucks air from the outside into the inner cavity 26, the rubber plug 2 continuously recovers, finally, the upper portion of the slope profile abuts against the upper end portion.

According to the technical scheme, when various medicines are infused, the medicine infusion mechanism is utilized to realize that the medicines are infused onto the inner wall 12 of the shell from the branch pipe 14 to realize medicine mixing, so that the consumption of consumables is saved, and the cost is saved; if vein spasm occurs during the infusion process, ordinary liquid can be injected at any time; the potential pollution caused by increasing a medicine passage is avoided, the washing is convenient, the working efficiency is improved, the possibility of leakage is reduced for cytotoxic medicines, the health of medical care personnel is protected, the side wall 21 of the rubber plug inside the Y-shaped positive pressure needleless connecting piece is in a threaded shape, when the Y-shaped positive pressure needleless connecting piece is pushed and pressed through the external connecting joint 4, the upper end portion 21 of the rubber plug is in an axial plane and moves until the middle of the shell 1, namely, a flow channel of liquid medicine is formed by separating the inner wall 12 of the shell from the upper end portion 21 of the rubber plug, the phenomenon that the flow channel is formed too early to bring external bacteria, dust and the like into the infusion liquid can be avoided, the cleanness and the sanitation and the safety of the infusion liquid are ensured, the Y-shaped positive pressure.

The details of the present invention are well known to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

The Y-shaped positive-pressure needleless connector is characterized in that: the utility model discloses a medical infusion device, including the shell, the inside cavity form that is of shell, and inside with the medicine infusion mechanism that sets up on the shell outer wall is linked together, the inside of shell is provided with the plug, the upper portion of plug is equipped with the upper end portion of rubber plug, the upper end portion of rubber plug forms seal structure with the shell inner wall, the lower part of plug is equipped with the tip under the plug, cup joint on the end cover lateral wall under the plug, just be provided with the inner chamber in the plug, inner chamber upper portion is provided with the intercommunication groove, the exhaust hole of the inside both sides of inner chamber lower part intercommunication end cover, the terminal intercommunication outside in exhaust hole still be provided with the liquid outlet on the end cover of exhaust hole lower part, the bottom of shell extends to.
2. The Y-shaped positive pressure needleless connector of claim 1, wherein: the medicine infusion mechanism comprises a plurality of branch pipes, wherein the ends of the branch pipes incline outwards and form an included angle of 30-45 degrees with the shell.
3. The Y-shaped positive pressure needleless connector of claim 2, wherein: the rubber plug is characterized in that a rubber plug side wall is arranged outside the rubber plug, and the rubber plug side wall is in a threaded shape.
4. The Y-shaped positive pressure needleless connector of claim 3, wherein: the sealing structure comprises a slope profile arranged on the inner wall of the shell, and the upper part of the slope profile is abutted against the upper end of the rubber plug to form upper sealing.
5. The Y-shaped positive pressure needleless connector of claim 4, wherein: the upper portion of plug still is provided with the plug shoulder, the plug shoulder is inconsistent with the lower part of slope profile and is formed middle part sealed.
6. The Y-shaped positive pressure needleless connector of claim 5, wherein: the outer wall of the upper part of the shell is provided with a convex block, and the convex block and the shell are integrally formed.
7. The Y-shaped positive pressure needleless connector of claim 6, wherein: the communicating groove extends out of the inner wall of the shell to the upper end part of the shell, and the upper end of the communicating groove is flush with the upper end part of the shell.