CN213491511U

CN213491511U - Novel needleless infusion joint

Info

Publication number: CN213491511U
Application number: CN202021858537.9U
Authority: CN
Inventors: 王丽娜; 陈瑜; 黄贤伟
Original assignee: 8th Medical Center of PLA General Hospital
Current assignee: 8th Medical Center of PLA General Hospital
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-22
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to the technical field of medical equipment, specifically a novel needleless infusion connects, one side fixedly connected with tee bend device of shell, and the inside hydrops chamber that is provided with of shell, the upper end in hydrops chamber is provided with the feed liquor pipe, the feed liquor pipe is close to lower extreme position department and has evenly seted up first hole, the position department that the inner wall in hydrops chamber corresponds first hole is provided with the silica gel pad, and the bottom in hydrops chamber set up with the communicating second hole of drain pipe, the inside bottom mounting in hydrops chamber has the silica gel spring. The utility model relates to a novelty, easy operation, the toper design of feed liquor pipe makes syringe and infusion articulate time more simple and convenient accurate, and tee bend device's setting both can play the effect of jointly using medicine, also can play the effect of ventilating, makes the atmospheric pressure in the transfer line stable, prevents the blood backflow, has improved patient's use comfort, alleviates patient's pain, improves patient's quality of life.

Description

Novel needleless infusion joint

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel needleless infusion joint.

Background

Central venous catheterization (PICC) through peripheral venipuncture utilizes the pipe to puncture from the vein of peripheral arm, and the pipe directly reaches the great vein that is close to the heart, avoids the direct contact of chemotherapy medicine and arm vein, and the blood flow speed of great vein is very fast in addition, can wash the thinning treatment medicine rapidly, prevents that the medicine from to the stimulation of blood vessel.

The infusion connector is clinically needed to be used for connecting a catheter with an injector, the existing infusion connector is often prone to deviation when being connected with the injector, medicine pollution is caused, the infusion connector is too single and cannot be used jointly, negative pressure is easily generated in an infusion tube, in addition, in-vivo blood backflow is caused, discomfort is caused to a human body, thrombus is easily caused even by long-time blood backflow, and medical accidents are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel needleless infusion connects to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel needleless infusion connects, which comprises an outer shell, the upper surface of shell is provided with into a liquid section of thick bamboo, and the lower surface of shell is provided with out a liquid section of thick bamboo, one side fixedly connected with tee bend device of shell, the inside hydrops chamber that is provided with of shell, one side of advancing a liquid section of thick bamboo is connected with soft sticky tape, the protective cover is installed to the one end of soft sticky tape, the upper end in hydrops chamber is provided with the feed liquor pipe, the feed liquor pipe is close to lower extreme position department and has evenly seted up first hole, the position department that the inner wall in hydrops chamber corresponds first hole is provided with the silica gel pad, and the lower extreme in hydrops chamber is provided with the drain pipe, the bottom in hydrops chamber is seted up with the communicating second hole of drain pipe, and the inside bottom mounting in hydrops chamber has the silica gel.

As a further aspect of the present invention: the three-way device comprises a vent pipe connected with the shell, one end of the vent pipe penetrates through the shell and extends to the inside of the dropsy cavity, a three-way cylinder is arranged at the other end of the vent pipe, and one end of the three-way cylinder is connected with a communicating vessel through threads.

As a further aspect of the present invention: the breather pipe is characterized in that an included angle formed by the breather pipe and the dropsy cavity is an acute angle, and the communicating vessel is provided with a vent hole.

As a further aspect of the present invention: the upper end of the liquid inlet pipe is higher than the horizontal plane of the liquid inlet cylinder, and the whole liquid inlet pipe is in a conical shape.

As a further aspect of the present invention: the inner wall of protective cover is provided with the internal thread, the outer wall of liquid inlet tube is provided with the pipe thread with internal thread looks adaptation.

As a further aspect of the present invention: the lower end of the liquid outlet cylinder is connected with an antifouling cover through threads.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a novelty, easy operation, the toper design of feed liquor pipe upper end makes syringe and infusion articulate time more simple and convenient accurate, and the effect of jointly using medicine had both been played in the setting of tee bend device in addition, also can play the effect of ventilating, makes the atmospheric pressure in the transfer line stable, prevents the blood backflow, has improved patient's use comfort, alleviates patient's pain, improves patient's quality of life.

Drawings

FIG. 1 is a schematic structural view of a novel needleless infusion joint;

FIG. 2 is a schematic diagram of the internal structure of a novel needleless infusion connector;

fig. 3 is an enlarged schematic view of a novel needleless infusion connector at a point a in fig. 2.

In the figure: 1. a housing; 2. a liquid inlet cylinder; 3. a liquid outlet cylinder; 4. a protective cover; 5. a soft adhesive tape; 6. a liquid inlet pipe; 7. a liquid outlet pipe; 8. a silica gel pad; 9. a first hole; 10. a liquid accumulation cavity; 11. a second hole; 12. a silicone spring; 13. a communicating vessel; 14. a three-way cylinder; 15. a breather pipe; 16. and (4) an antifouling cover.

Detailed Description

Referring to fig. 1-3, in the embodiment of the present invention, a novel needleless infusion connector comprises a housing 1, a liquid inlet tube 2 is disposed on the upper surface of the housing 1, a liquid outlet tube 3 is disposed on the lower surface of the housing 1, an inner thread matching with an external infusion tube is disposed on the inner wall of the liquid outlet tube 3, a three-way device is fixedly connected to one side of the housing 1, a liquid accumulation chamber 10 is disposed inside the housing 1, a soft adhesive tape 5 is connected to one side of the liquid inlet tube 2, a protective cover 4 is mounted at one end of the soft adhesive tape 5, a liquid inlet tube 6 is disposed at the upper end of the liquid accumulation chamber 10, a needleless injector can be inserted into the upper end of the liquid inlet tube 6, first holes 9 are uniformly disposed at a position of the liquid inlet tube 6 close to the lower end, a silicone pad 8 is disposed at a position of the inner wall of the liquid accumulation chamber 10 corresponding to the first holes 9, the needleless injector is inserted into the, and make silica gel spring 12 shrink, expose first hole 9 then to make the liquid in feed liquor pipe 6 flow into in the hydrops chamber 10, and the lower extreme in hydrops chamber 10 is provided with drain pipe 7, pass through threaded connection to in going out liquid section of thick bamboo 3 with external transfer line, can make the liquid medicine flow into external transfer line along drain pipe 7, the communicating second hole 11 with drain pipe 7 is seted up to the bottom in hydrops chamber 10, and the inside bottom mounting in hydrops chamber 10 has silica gel spring 12, the other end of silica gel spring 12 is fixed continuous with the bottom of feed liquor pipe 6.

In fig. 2, the three-way device comprises a vent pipe 15 connected with the housing 1, one end of the vent pipe 15 penetrates through the housing 1 and extends to the inside of the hydrops chamber 10, a three-way cylinder 14 is arranged at the other end of the vent pipe 15, one end of the three-way cylinder 14 is connected with a communicating vessel 13 through threads, and the communicating vessel 13 can be detached to facilitate combined medication.

In fig. 2, the included angle formed by the vent tube 15 and the hydrops chamber 10 is an acute angle, and the communicating vessel 13 is provided with a vent hole to play a role in ventilation, so that the air pressure in the infusion tube is stable, and the blood backflow is prevented.

In fig. 2, the upper end of the liquid inlet pipe 6 is higher than the horizontal plane of the liquid inlet cylinder 2, and the whole liquid inlet pipe 6 is in a conical shape, so that the needleless injector is conveniently connected with the liquid inlet pipe 6.

In fig. 1, the inner wall of the protective cover 4 is provided with an internal thread, the outer wall of the liquid inlet cylinder 2 is provided with a pipe thread matched with the internal thread, and the protective cover 4 can effectively protect the liquid inlet pipe 6 through threaded connection to prevent the liquid inlet pipe 6 from being polluted.

In fig. 1, the lower end of the liquid outlet tube 3 is connected with an anti-fouling cover 16 through threads to prevent the liquid outlet tube 7 from being polluted.

The utility model discloses a theory of operation is: opening the protective cover 4 and the anti-pollution cover 16, inserting the needleless injector into the upper end of the liquid inlet pipe 6, connecting the external infusion tube to the liquid outlet cylinder 3 through screw threads, pressing the liquid inlet pipe 6 to enable the bottom of the liquid inlet pipe 6 to move downwards on the silica gel pad 8 and enable the silica gel spring 12 to contract, then exposing the first hole 9, enabling the liquid medicine in the liquid inlet pipe 6 to flow into the liquid accumulation cavity 10, enabling the liquid medicine in the liquid accumulation cavity 10 to flow into the liquid outlet pipe 7 through the second hole 11, enabling the liquid medicine to be left in the infusion tube from the liquid outlet pipe 7, removing the injector when the infusion is finished, covering the protective cover 4 on the liquid inlet cylinder 2 through screw threads, enabling the silica gel spring 12 to stretch to push the liquid inlet pipe 6 to move upwards to block the first hole 9 under the action of the silica gel pad 8, wherein the tee joint device can play a role of jointly using medicine and also play a role of ventilation and stabilize the air pressure in the infusion tube, preventing blood backflow.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel needleless infusion joint comprises a shell (1) and is characterized in that a liquid inlet cylinder (2) is arranged on the upper surface of the shell (1), a liquid outlet cylinder (3) is arranged on the lower surface of the shell (1), a three-way device is fixedly connected to one side of the shell (1), a liquid accumulation cavity (10) is arranged inside the shell (1), a soft adhesive tape (5) is connected to one side of the liquid inlet cylinder (2), a protective cover (4) is installed at one end of the soft adhesive tape (5), a liquid inlet pipe (6) is arranged at the upper end of the liquid accumulation cavity (10), a first hole (9) is uniformly formed in the position, close to the lower end, of the liquid inlet pipe (6), a silica gel pad (8) is arranged in the position, corresponding to the first hole (9), of the inner wall of the liquid accumulation cavity (10), a liquid outlet pipe (7) is arranged at the lower end of the liquid accumulation cavity (10), a second hole (11) communicated with the liquid outlet pipe (7) is formed in the, and the bottom end in the liquid accumulation cavity (10) is fixed with a silica gel spring (12), and the other end of the silica gel spring (12) is fixedly connected with the bottom of the liquid inlet pipe (6).

2. The novel needleless infusion connector of claim 1, wherein the three-way device comprises a vent pipe (15) connected with the housing (1), one end of the vent pipe (15) penetrates through the housing (1) and extends to the interior of the hydropneumatic chamber (10), and the other end of the vent pipe (15) is provided with a three-way cylinder (14), and one end of the three-way cylinder (14) is connected with a communicating vessel (13) through threads.

3. The novel needleless infusion joint according to claim 2, wherein the included angle formed by the vent pipe (15) and the hydropneumatic chamber (10) is an acute angle, and the communicating vessel (13) is provided with a vent hole.

4. The novel needleless infusion joint according to claim 1, wherein the upper end of the liquid inlet pipe (6) is higher than the horizontal plane of the liquid inlet cylinder (2), and the liquid inlet pipe (6) is in a conical shape as a whole.

5. The novel needleless infusion joint of claim 1, wherein the inner wall of the protective cover (4) is provided with an internal thread, and the outer wall of the liquid inlet barrel (2) is provided with a pipe thread matched with the internal thread.

6. The novel needleless infusion connector of claim 1, wherein the lower end of the liquid outlet cylinder (3) is connected with a pollution-proof cover (16) through a thread.