CN219136345U - Luer lock adapter for prefilled syringe - Google Patents

Abstract

The utility model discloses a luer lock adapter for a pre-filling and sealing injector, which relates to the technical field of adapters and comprises a communicating pipe, wherein a protective cover is arranged at one end of the communicating pipe, a first filling pipe is arranged at one side of the protective cover, which is far away from the communicating pipe, a second filling pipe is arranged at one side of the first filling pipe, a first injection pipe is arranged at one side below a flow distribution plate, a second injection pipe is arranged at one side of the first injection pipe, a second luer lock assembly is arranged at one end of the second injection pipe, which is far away from the flow distribution plate, a third injection pipe is arranged at one side of the second injection pipe, which is far away from the first injection pipe, and a fourth injection pipe is arranged at one side of the third injection pipe, which is far away from the second injection pipe. The utility model adopts the luer lock structure, so that the device can be suitable for four different specifications of needles at most when filling liquid medicine, is convenient for replacing the needles, and avoids leakage at the joint during filling, thereby avoiding pollution to the liquid medicine.

Description

Luer lock adapter for prefilled syringe

Technical Field

The utility model relates to the technical field of adapters, in particular to a luer lock adapter for a prefilled syringe.

Background

Most of the liquid medicine production uses glass bottles for filling and sealing, and different liquid medicine filling machines are needed for filling and sealing, so that the liquid medicine filling machine is a device suitable for vacuum negative pressure and self-priming liquid filling for containers such as glass, plastic and metal in the industries such as pharmacy, chemical industry, food, light industry and the like.

When the liquid medicine is filled, the adapter is needed to be used for filling with glass bottles of different specifications, the existing adapter has limited adjusting capacity when the specifications are adjusted, and the joint is easy to cause leakage of the liquid medicine amount, so that the liquid medicine is polluted.

Accordingly, in view of the above, research and improvement have been made to the conventional structure and the conventional drawbacks, and a luer lock adapter for a prefilled syringe has been proposed.

Disclosure of Invention

The utility model aims to provide a luer lock adapter for a prefilled syringe, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pre-filling is luer lock adapter for syringe, includes communicating pipe, the protection casing is installed to the one end of communicating pipe, and the shunt dish is installed to the other end of communicating pipe, first filling pipeline is installed to one side that the communicating pipe was kept away from to the protection casing, the second filling pipeline is installed to one side of first filling pipeline, and the second filling pipeline is kept away from one side of first filling pipeline and is installed the third filling pipeline, first injection pipeline is installed to one side below the shunt dish, and first injection pipeline, and first luer lock subassembly is installed to one end of keeping away from the shunt dish, the second luer lock subassembly is installed to one side of first injection pipeline, and the second luer lock subassembly is installed to one end of keeping away from the shunt dish to one side that the second injection pipeline was kept away from to the second injection pipeline, and the third luer lock subassembly is installed to one side that the shunt dish was kept away from to the third injection pipeline, the fourth injection pipeline is installed to one side that the second injection pipeline was kept away from to the fourth injection pipeline, and fourth luer lock subassembly is installed to one end that the shunt dish was kept away from to the fourth injection pipeline.

Further, first filling pipeline, second filling pipeline and third filling pipeline constitute "mountain" font structure, and control valve is all installed to the inside of first filling pipeline, second filling pipeline and third filling pipeline one end, coupling assembling is all installed to the other end of first filling pipeline, second filling pipeline and third filling pipeline.

Further, coupling assembling is including connecting cover, check valve, hinge, straight-bar, jump ring and extension spring, the internally mounted of connecting cover has the check valve, and the hinge is all installed to the both sides of check valve, install the straight-bar on the hinge, and the jump ring is installed to the one end that the hinge was kept away from to the straight-bar, the extension spring is installed to one side that the check valve was kept away from to the straight-bar.

Further, the first rotary valve is arranged in the protective cover, the protective cover is communicated with one end of the communicating pipe through the first rotary valve, and meanwhile, the protective cover and the communicating pipe form a rotatable structure through the first rotary valve.

Further, the second rotary valve is arranged in the flow distribution disc, the flow distribution disc is communicated with the other end of the communicating pipe through the second rotary valve, and meanwhile, the flow distribution disc and the communicating pipe form a rotatable structure through the second rotary valve.

Further, the sealing washer is installed to the top of first injection pipeline, and prevents installing under the first injection pipeline and change the dish, the injection connecting tube is installed to the below of changing the dish, and changes the internally mounted of dish and have sealed joint, first sealing ring is installed to sealed joint's both sides, and sealed joint's surface and the internal surface of first sealing ring are the helicitic texture, injection connecting tube goes deep into the inside of changing the dish and passes through sealed joint and first sealing ring and change a set threaded connection.

Further, the first injection pipeline, the second injection pipeline, the third injection pipeline and the fourth injection pipeline have the same internal structure.

Further, the first luer lock assembly comprises a luer lock pipeline, a limit ring, a luer lock shell, a clamping block and a needle head, wherein the luer lock pipeline is arranged in the luer lock shell, the limit ring is arranged on the outer side of the luer lock pipeline, the clamping blocks are arranged on two sides of the limit ring, the needle head is arranged at one end of the luer lock pipeline, the luer lock pipeline penetrates into the injection connecting pipeline, the pipeline side wall of the luer lock pipeline and the inside of the limit ring are of a threaded structure, and the luer lock pipeline is in threaded connection with the limit ring.

Further, the first luer lock assembly, the second luer lock assembly, the third luer lock assembly and the fourth luer lock assembly have the same structure.

The utility model provides a luer lock adapter for a prefilled syringe, which has the following beneficial effects: the luer lock structure is adopted, so that the device can be suitable for four different specifications of needles at most when the liquid medicine is filled, the needles are convenient to replace, and leakage at the joint during filling is avoided, so that pollution to the liquid medicine is avoided;

the liquid medicine enters the flow distribution disc from the prefilled syringe along the first filling pipeline, the second filling pipeline or the third filling pipeline through the communicating pipe for flow distribution, and the device is provided with a first luer lock assembly, a second luer lock assembly, a third luer lock assembly and a fourth luer lock assembly, so that the prefilled operation can be performed by using four different specifications of medicine bottles in actual use;

when components with different specifications are required to be replaced, the replacement disc rotates along with the rotation of the injection connecting pipeline, the injection connecting pipeline penetrates into the replacement disc and is in threaded connection with the replacement disc through the sealing joint and the first sealing ring, so that the injection connecting pipeline and the first luer lock component can be removed for replacement, and the leakage of liquid medicine can be prevented by the arrangement of the first sealing ring and the replacement disc;

the luer lock structure is adopted by the first luer lock assembly, the second luer lock assembly, the third luer lock assembly and the fourth luer lock assembly, so that the device can avoid leakage of liquid medicine when a needle is replaced, and a sealing structure is formed through threaded connection of the luer lock pipeline and the limit ring.

Drawings

FIG. 1 is a schematic diagram of the overall front view of a luer lock adapter for a prefilled syringe of the present utility model;

fig. 2 is a schematic diagram of the structure of a communicating tube, a protecting cover and a diverter disc of the luer lock adapter for the prefilled syringe of the present utility model;

FIG. 3 is a schematic view of a connection assembly of a luer lock adapter for a prefilled syringe according to the present utility model;

FIG. 4 is a schematic view of a first injection tubing configuration of a luer lock adapter for a prefilled syringe according to the present utility model;

fig. 5 is a schematic view of a luer lock tube structure of a luer lock adapter for a prefilled syringe according to the present utility model.

In the figure: 1. a communicating pipe; 2. a protective cover; 3. a diverter tray; 4. a first filling duct; 5. a second filling duct; 6. a third filling duct; 7. a control valve; 8. a connection assembly; 801. a connection cover; 802. a one-way valve; 803. a hinge; 804. a straight rod; 805. clamping springs; 806. a tension spring; 9. a first rotary valve; 10. a second rotary valve; 11. a first injection conduit; 1101. a seal ring; 1102. replacing the disc; 1103. injecting a connecting pipeline; 1104. sealing the joint; 1105. a first seal ring; 12. a first luer lock assembly; 1201. luer lock tubing; 1202. a limit ring; 1203. a luer lock housing; 1204. a clamping block; 1205. a needle; 13. a second injection conduit; 14. a second luer lock assembly; 15. a third injection conduit; 16. a third luer lock assembly; 17. a fourth injection conduit; 18. and a fourth luer lock assembly.

Detailed Description

Referring to fig. 1 to 5, the present utility model provides the following technical solutions: the utility model provides a luer lock adapter for prefilled syringe, includes communicating pipe 1, protection casing 2 is installed to the one end of communicating pipe 1, and the shunt dish 3 is installed to the other end of communicating pipe 1, first filling pipe 4 is installed to one side that communicating pipe 1 was kept away from to protection casing 2, second filling pipe 5 is installed to one side of first filling pipe 4, and the third filling pipe 6 is installed to one side that first filling pipe 4 was kept away from to second filling pipe 5, first injection pipe 11 is installed to one side below shunt dish 3, and first injection pipe 11, and first luer lock subassembly 12 is installed to one end that keeps away from shunt dish 3, second injection pipe 13 is installed to one side of first injection pipe 11, and second luer lock subassembly 14 is installed to one side that shunt dish 3 was kept away from to second injection pipe 13, third injection pipe 15 is installed to one side that first injection pipe 11 was kept away from to second injection pipe 13, and third luer lock subassembly 16 is installed to one side that shunt dish 3 was kept away from to third injection pipe 15, fourth injection pipe 17 is kept away from fourth injection pipe 17 is installed to one side that fourth injection pipe 17 is kept away from fourth injection pipe 17.

The first filling pipeline 4, the second filling pipeline 5 and the third filling pipeline 6 form a mountain-shaped structure, the control valve 7 is arranged in one end of the first filling pipeline 4, the second filling pipeline 5 and the third filling pipeline 6, and the connecting component 8 is arranged at the other end of the first filling pipeline 4, the second filling pipeline 5 and the third filling pipeline 6.

Referring to fig. 1 and 3, specifically, the connecting assembly 8 includes a connecting cover 801, a one-way valve 802, a hinge 803, a straight rod 804, a clamp spring 805 and a tension spring 806, wherein the one-way valve 802 is installed in the connecting cover 801, the hinges 803 are installed on both sides of the one-way valve 802, the straight rod 804 is installed on the hinge 803, the clamp spring 805 is installed at one end of the straight rod 804 far away from the hinge 803, the tension spring 806 is installed at one side of the straight rod 804 far away from the one-way valve 802, three pre-filling syringes are connected through the connecting assembly 8 for use, specifically, the tubes of the pre-filling syringes are inserted into the connecting cover 801 and are communicated with the one-way valve 802, the switch of the first filling tube 4, the second filling tube 5 and the third filling tube 6 is controlled through the one-way valve 802, and the tension spring 806 supports the clamp springs 805 to be mutually close at this time so that the two clamp springs 805 are pressed outwards and tightly attached to the outer surface of the pre-filling syringe tubes.

Referring to fig. 1 and 2, specifically, a first rotary valve 9 is installed in the protective cover 2, and the protective cover 2 is communicated with one end of the communicating pipe 1 through the first rotary valve 9, meanwhile, the protective cover 2 and the communicating pipe 1 form a rotatable structure through the first rotary valve 9, a second rotary valve 10 is installed in the diverter tray 3, and the diverter tray 3 is communicated with the other end of the communicating pipe 1 through the second rotary valve 10, and meanwhile, the diverter tray 3 and the communicating pipe 1 form a rotatable structure through the second rotary valve 10, so that the protective cover 2 can prevent the outflow of liquid medicine when rotating with the diverter tray 3 through the communicating pipe 1.

Referring to fig. 1 and 4, specifically, a sealing ring 1101 is installed above a first injection pipe 11, a replacement tray 1102 is installed under the first injection pipe 11, an injection connection pipe 1103 is installed under the replacement tray 1102, a sealing joint 1104 is installed inside the replacement tray 1102, first sealing rings 1105 are installed on two sides of the sealing joint 1104, the outer surface of the sealing joint 1104 and the inner surface of the first sealing ring 1105 are both in a threaded structure, and the injection connection pipe 1103 is connected with the replacement tray 1102 in a threaded manner through the sealing joint 1104 and the first sealing ring 1105.

The first injection pipe 11, the second injection pipe 13, the third injection pipe 15 and the fourth injection pipe 17 have the same internal structure.

Referring to fig. 1 and 5, specifically, the first luer lock assembly 12 includes a luer lock tube 1201, a stop collar 1202, a luer lock housing 1203, a clamping block 1204 and a needle 1205, wherein the luer lock tube 1201 is installed inside the luer lock housing 1203, the stop collar 1202 is disposed outside the luer lock tube 1201, the clamping blocks 1204 are installed on both sides of the stop collar 1202, the needle 1205 is installed at one end of the luer lock tube 1201, the luer lock tube 1201 extends into the injection connecting tube 1103, the tube side wall of the luer lock tube 1201 and the inside of the stop collar 1202 are both in a threaded structure, the luer lock tube 1201 and the stop collar 1202 are in threaded connection, and the structures of the first luer lock assembly 12, the second luer lock assembly 14, the third luer lock assembly 16 and the fourth luer lock assembly 18 are the same, so that the device avoids leakage of liquid medicine when the needle 1205 is replaced, and a sealing structure is formed by the threaded connection of the luer lock tube 1201 and the stop collar 1202.

In summary, when the luer lock adapter for the pre-filling and sealing syringe is used, the device can be used by connecting three pre-filling and sealing syringes through a first filling pipeline 4, a second filling pipeline 5 and a third filling pipeline 6 through a connecting component 8, specifically, the pipelines of the pre-filling and sealing syringes are inserted into a connecting cover 801 to be communicated with a one-way valve 802, the one-way valve 802 is used for controlling the opening and closing of the first filling pipeline 4, the second filling pipeline 5 and the third filling pipeline 6, and after the pipelines of the pre-filling and sealing syringes are inserted into the connecting cover 801, a tension spring 806 supports clamp springs 805 to be close to each other at the moment, so that the two clamp springs 805 are outwards extruded to be tightly attached to the outer surface of the pipelines of the pre-filling and sealing syringes;

when the liquid medicine spraying device is used, the protective cover 2 can rotate with the diverter tray 3 through the communicating pipe 1, and as the second rotary valve 10 is arranged in the diverter tray 3, the diverter tray 3 is communicated with the other end of the communicating pipe 1 through the second rotary valve 10, and meanwhile, the diverter tray 3 and the communicating pipe 1 form a rotatable structure through the second rotary valve 10, the protective cover 2 can rotate with the diverter tray 3 through the communicating pipe 1, and the outflow of liquid medicine is prevented;

the liquid medicine enters the flow distribution disc 3 from the prefilled syringe along the first filling pipeline 4, the second filling pipeline 5 or the third filling pipeline 6 through the communicating pipe 1 for flow distribution, and the device is provided with a first luer lock assembly 12, a second luer lock assembly 14, a third luer lock assembly 16 and a fourth luer lock assembly 18, so that four different specifications of medicine bottles can be used for prefilling operation in actual use;

when components with different specifications need to be replaced, the injection connecting pipeline 1103 is rotated to enable the replacement disc 1102 to rotate along with the replacement disc 1102, and the injection connecting pipeline 1103 and the first luer lock assembly 12 can be removed for replacement as the injection connecting pipeline 1103 penetrates into the replacement disc 1102 and is in threaded connection with the replacement disc 1102 through the sealing joint 1104 and the first sealing ring 1105, and the first sealing ring 1105 and the replacement disc 1102 can prevent leakage of liquid medicine;

the luer lock structure adopted by the first luer lock assembly 12, the second luer lock assembly 14, the third luer lock assembly 16 and the fourth luer lock assembly 18 can prevent leakage of liquid medicine when the needle 1205 is replaced, and a sealing structure is formed through threaded connection of the luer lock pipeline 1201 and the limit ring 1202.

The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (9)

1. The utility model provides a luer lock adapter for prefilled syringe, its characterized in that, including communicating pipe (1), protection casing (2) are installed to the one end of communicating pipe (1), and shunt dish (3) are installed to the other end of communicating pipe (1), first filling pipeline (4) are installed to one side that communicating pipe (1) was kept away from to protection casing (2), second filling pipeline (5) are installed to one side of first filling pipeline (4), and third filling pipeline (6) are installed to one side that first filling pipeline (4) was kept away from to second filling pipeline (5), first injection pipeline (11) are installed to one side below of shunt dish (3), and first luer lock subassembly (12) are installed to one end that is kept away from shunt dish (3), second injection pipeline (13) are installed to one side of first injection pipeline (11), and second luer lock subassembly (14) are installed to one side that shunt dish (3) was kept away from to one side of second injection pipeline (13), third injection pipeline (15) are installed to third injection pipeline (16) are kept away from to one side of second injection pipeline (13), a fourth injection pipeline (17) is arranged on one side, far away from the second injection pipeline (13), of the third injection pipeline (15), and a fourth luer lock assembly (18) is arranged on one end, far away from the flow distribution disc (3), of the fourth injection pipeline (17).

2. The luer lock adapter for the pre-filling and sealing syringe according to claim 1, wherein the first filling pipe (4), the second filling pipe (5) and the third filling pipe (6) form a 'mountain' -shaped structure, control valves (7) are installed in the first filling pipe (4), the second filling pipe (5) and the third filling pipe (6) at one end, and connecting components (8) are installed at the other ends of the first filling pipe (4), the second filling pipe (5) and the third filling pipe (6).

3. The luer lock adapter for pre-filled and sealed syringes according to claim 2, wherein the connecting assembly (8) comprises a connecting cover (801), a one-way valve (802), a hinge (803), a straight rod (804), a clamp spring (805) and a tension spring (806), wherein the one-way valve (802) is installed in the connecting cover (801), the hinges (803) are installed on two sides of the one-way valve (802), the straight rod (804) is installed on the hinge (803), the clamp spring (805) is installed at one end, far away from the hinge (803), of the straight rod (804), and the tension spring (806) is installed at one side, far away from the one-way valve (802), of the straight rod (804).

4. Luer lock adapter for pre-filled syringes according to claim 1, characterized in that the interior of the shield (2) is fitted with a first rotary valve (9), and the shield (2) communicates with one end of the communicating tube (1) through the first rotary valve (9), while the shield (2) constitutes a rotatable structure with the communicating tube (1) through the first rotary valve (9).

5. Luer lock adapter for pre-filled syringes according to claim 1, characterized in that the diverter disc (3) is internally mounted with a second rotary valve (10) and the diverter disc (3) communicates with the other end of the communicating tube (1) through the second rotary valve (10), while the diverter disc (3) forms a rotatable structure with the communicating tube (1) through the second rotary valve (10).

6. The luer lock adapter for pre-filled and sealed syringe according to claim 1, wherein a sealing ring (1101) is installed above the first injection pipe (11), a replacement tray (1102) is installed under the first injection pipe (11), an injection connecting pipe (1103) is installed under the replacement tray (1102), a sealing joint (1104) is installed inside the replacement tray (1102), first sealing rings (1105) are installed on two sides of the sealing joint (1104), the outer surface of the sealing joint (1104) and the inner surface of the first sealing ring (1105) are of a threaded structure, and the injection connecting pipe (1103) penetrates into the replacement tray (1102) and is connected with the replacement tray (1102) through the sealing joint (1104) and the first sealing ring (1105) in a threaded mode.

7. The luer lock adapter for pre-filled syringes according to claim 6, wherein the first (11), second (13), third (15) and fourth (17) injection lines are of identical internal construction.

8. The luer lock adapter for a pre-filled and sealed syringe according to claim 6, wherein the first luer lock assembly (12) comprises a luer lock pipe (1201), a limit ring (1202), a luer lock housing (1203), a clamping block (1204) and a needle (1205), the luer lock pipe (1201) is internally installed in the luer lock housing (1203), the outside of the luer lock pipe (1201) is provided with the limit ring (1202), the clamping blocks (1204) are installed on both sides of the limit ring (1202), the needle (1205) is installed at one end of the luer lock pipe (1201), the luer lock pipe (1201) penetrates into the injection connecting pipe (1103), the pipe side wall of the luer lock pipe (1201) and the inside of the limit ring (1202) are both in a threaded structure, and the luer lock pipe (1201) is in threaded connection with the limit ring (1202).

9. The luer lock adapter for pre-filled syringes according to claim 1, wherein the first luer lock assembly (12), the second luer lock assembly (14), the third luer lock assembly (16) and the fourth luer lock assembly (18) are identical in structure.

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