CN216934304U

CN216934304U - Safety protection needle seat for syringe

Info

Publication number: CN216934304U
Application number: CN202220161985.6U
Authority: CN
Inventors: 曹方连
Original assignee: Qingdao Hongxinlian Plastic Electronic Co ltd
Current assignee: Qingdao Hongxinlian Plastic Electronic Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-12
Anticipated expiration: 2032-01-21

Abstract

The utility model discloses a safety protection needle seat for a syringe, which comprises a barrel, wherein a piston shaft is arranged in the barrel, a piston is arranged at the front end of the piston shaft, a syringe is arranged on one side of the barrel, a needle seat is arranged on the syringe, a needle head is arranged at the upper end of the needle seat, a needle cover is arranged outside the needle head, a first fixing ring is rotatably arranged on the needle seat, a connecting rod is arranged on one side of the first fixing ring, a second fixing ring is arranged on one side of the connecting rod, a plug is arranged on one side of the connecting rod, which is far away from the first fixing ring, a fixing groove is arranged at the upper end of the plug, a baffle is arranged on the plug, and a sealing gasket is arranged on the baffle. The utility model discloses a safety protection needle seat for an injector, which is characterized in that a plug is arranged on a needle seat, after the use is finished, the bottom end of the needle seat can be sealed by the plug to prevent pollution, and meanwhile, the fastening effect between the needle seat and an injection tube can be enhanced by a screw, so that the needle seat is not easy to loosen.

Description

Safety protection needle seat for syringe

Technical Field

The utility model relates to the technical field of safety needle bases, in particular to a safety protection needle base for an injector.

Background

In the field of medical science and technology, a syringe is commonly used for injection, wherein liquid is contained in the syringe, a push rod is sleeved in a hollow outer rod, the push rod pushes the liquid contained in the syringe to flow out through a needle tube sleeved at the end of the syringe so as to achieve the injection effect, so that the syringe is commonly used in the medical field, is a common medical appliance, is proposed as early as 15 th century, and is mainly used for extracting or injecting gas or liquid through a needle head, and can also be used for medical equipment, containers and scientific instruments in chromatography through rubber diaphragms for injection.

The syringe needle is frequently used in the hospital, the syringe needle includes the needle file, needle body and protecting crust, common usage is connected through needle file and syringe and injects the liquid medicine to patient's health inside is treated, in order to avoid cross infection, the syringe needle is often abandoned useless with it after the use, avoid the secondary use, current needle file simple structure, can not guarantee that the protecting crust can not drop when wrapping up the needle body with the protecting crust cooperation, and the needle file bottom does not seal, the liquid medicine or blood flow from the needle file bottom after the use cause the pollution to the environment easily.

The prior patent (publication No. CN2588997Y) discloses a safety needle unit structure, which comprises a protective casing and a connecting seat, wherein the protective casing comprises a hollow accommodating part and a hollow space part, the accommodating part is communicated with the space part, a limit groove and a convex part are formed at the near opening end of the accommodating part, a shoulder part is formed at the joint between the other end of the accommodating part and the space part, so that the connecting seat and the needle unit can be respectively positioned in the accommodating part and the space part, a seat part, a guide hole and a rear frame part are respectively arranged at proper positions of the connecting seat, the guide hole penetrates through the seat part, the seat part is positioned in the rear frame part, and at least more than one stopping part is formed at proper positions of the rear frame part. But the device is not provided with sealing means for the bottom end of the hub.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a safety protection needle holder for a syringe.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a safety protection needle file for syringe, includes the barrel, the inside piston shaft that is provided with of barrel, the piston shaft front end is provided with the piston, barrel one side is provided with the syringe, be provided with the needle file on the syringe, the needle file upper end is provided with the syringe needle, it is provided with first solid fixed ring to rotate on the needle file, first solid fixed ring one side is provided with the connecting rod, connecting rod one side is provided with the solid fixed ring of second, one side that first solid fixed ring was kept away from to the connecting rod is provided with the end cap, the end cap upper end is provided with the fixed slot, be provided with the baffle on the end cap.

As a further description of the above technical solution:

and a press hand is arranged at one end of the piston shaft, which is far away from the piston.

As a further description of the above technical solution:

one side of the cylinder body, which is far away from the injection tube, is provided with a finger hook part.

As a further description of the above technical solution:

the second fixing ring is rotatably arranged between the fixing grooves.

As a further description of the above technical solution:

and a sealing gasket is arranged on the baffle.

As a further description of the above technical solution:

a threaded hole is formed in one side of the needle seat, and a screw rod is connected to the inner portion of the threaded hole in a threaded mode.

As a further description of the above technical solution:

and a needle shield is arranged outside the needle head.

As a further description of the above technical solution:

the sealing gasket, the connecting rod and the piston are all made of rubber materials.

The utility model has the following beneficial effects:

1. compared with the existing device, the safety protection needle seat for the injector is provided with the screw rod on the needle seat, the screw rod can be rotated to extrude the needle seat when the safety protection needle seat is used, so that the fastening effect between the needle seat and an injection tube is better, meanwhile, the screw penetrates through the needle cover, after the safety protection needle seat is used, when the needle head is treated, the screw can limit the position of the needle cover, the needle cover is prevented from falling off from the needle seat, the accidental injury to workers is avoided, and the injury condition of the workers is reduced.

2. Compared with the existing device, the safety protection needle seat for the injector provided by the utility model is provided with the plug, and after the use is finished, the bottom end of the needle seat is sealed through the plug, so that the situation that liquid medicine or blood easily flows out from the bottom of the needle seat to pollute the environment after the use can be avoided.

3. Compared with the existing device, the safety protection needle seat for the injector provided by the utility model has a simple structure, and realizes safety protection on the needle seat through a simple device.

Drawings

FIG. 1 is an isometric view of a safety shield hub for a syringe in accordance with the present invention;

FIG. 2 is a front view of a safety protection needle holder for a syringe according to the present invention;

fig. 3 is a front sectional view of a safety protection needle holder for a syringe according to the present invention;

fig. 4 is a schematic view of a needle stand structure of a safety protection needle stand for an injector according to the present invention;

fig. 5 is an enlarged view of a portion a in fig. 3.

Illustration of the drawings:

1. a barrel; 2. a piston shaft; 3. a piston; 4. pressing the hand; 5. a finger hook portion; 6. an injection tube; 7. a needle seat; 8. a needle head; 9. a needle shield; 10. a first retaining ring; 11. a connecting rod; 12. a second retaining ring; 13. a plug; 14. fixing grooves; 15. a baffle plate; 16. a gasket; 17. a threaded hole; 18. a screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, one embodiment of the present invention is provided: the utility model provides a safety protection needle file for syringe, including barrel 1, barrel 1 inside is provided with piston shaft 2, piston shaft 2 is drive arrangement when the injection of syringe, 2 front ends of piston shaft are provided with piston 3, barrel 1 one side is provided with syringe 6, be provided with needle file 7 on the syringe 6, needle file 7 is the device that is used for being connected with

syringe

6, 7 upper ends of needle file are provided with syringe needle 8, it is provided with first solid fixed ring 10 to rotate on the needle file 7, first solid fixed ring 10 is used for being connected with needle file 7, first solid fixed ring 10 one side is provided with connecting rod 11, connecting rod 11 one side is provided with the solid fixed ring 12 of second, one side that first solid fixed ring 10 was kept away from to connecting rod 11 is provided with end cap 13, end cap 13 is used for sealing the bottom cavity of needle file 7, end cap 13 upper end is provided with fixed slot 14, be provided with baffle 15 on the end cap 13, baffle 15 is used for restricting the position of end cap 13.

A press hand 4 is arranged at one end of the piston shaft 2, which is far away from the piston 3, a finger hook part 5 is arranged at one side of the barrel 1, which is far away from the injection tube 6, a second fixing ring 12 is rotatably arranged between fixing grooves 14, a sealing gasket 16 is arranged on a baffle 15, the sealing gasket 16 carries out secondary sealing on the joint of a plug 13 and a needle seat 7, a threaded hole 17 is arranged in one side of the needle seat 7, a screw 18 is in threaded connection with the inside of the threaded hole 17, the screw 18 is used for fastening the needle seat 7 and the injection tube 6 and limiting the needle cover 9, a needle 9 is arranged outside the needle 8, the needle cover 9 is used for sealing the needle cover 8 and playing a protection role at the same time, and the sealing gasket 16, the connecting rod 11 and the piston 3 are all made of rubber materials.

The working principle is as follows: the device is when using, with needle file 7 cover on injection tube 6, rotate the screw rod 18, take off needle cover 9, later rotate screw rod 18 extrusion needle file 7, strengthen the fastening condition between needle file 7 and the injection tube 6, after the use, rotate the screw rod 18, then sheathe in needle cover 9, pull out needle file 7, it is fixed with needle file 7 threaded connection with screw rod 18 passing needle cover 9, put end cap 13 inside needle file 7 bottom again, seal needle file 7, avoid using back liquid medicine or blood to cause the pollution to the environment from flowing out bottom needle file 7 easily.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a safety protection needle file for syringe, includes barrel (1), its characterized in that: barrel (1) inside is provided with piston shaft (2), piston shaft (2) front end is provided with piston (3), barrel (1) one side is provided with injection syringe (6), be provided with needle file (7) on injection syringe (6), needle file (7) upper end is provided with syringe needle (8), it is provided with first solid fixed ring (10) to rotate on needle file (7), first solid fixed ring (10) one side is provided with connecting rod (11), connecting rod (11) one side is provided with the solid fixed ring of second (12), one side that first solid fixed ring (10) was kept away from in connecting rod (11) is provided with end cap (13), end cap (13) upper end is provided with fixed slot (14), be provided with baffle (15) on end cap (13).

2. A safety shield needle holder for a syringe according to claim 1, wherein: and a press hand (4) is arranged at one end of the piston shaft (2) far away from the piston (3).

3. A safety shield needle holder for a syringe according to claim 1, wherein: one side of the barrel body (1) far away from the injection tube (6) is provided with a finger hook part (5).

4. A safety shield needle holder for a syringe according to claim 1, wherein: the second fixing ring (12) is rotatably arranged between the fixing grooves (14).

5. A safety protection needle holder for a syringe according to claim 1, wherein: and a sealing gasket (16) is arranged on the baffle (15).

6. A safety shield needle holder for a syringe according to claim 1, wherein: a threaded hole (17) is formed in one side of the needle seat (7), and a screw rod (18) is connected to the inner portion of the threaded hole (17) in a threaded mode.

7. A safety shield needle holder for a syringe according to claim 1, wherein: a needle shield (9) is arranged outside the needle (8).

8. A safety shield needle holder for a syringe according to claim 5, wherein: the sealing gasket (16), the connecting rod (11) and the piston (3) are all made of rubber materials.