CN218501095U

CN218501095U - Syringe structure

Info

Publication number: CN218501095U
Application number: CN202221573271.2U
Authority: CN
Inventors: 董慧; 张玉丽; 何正坤; 张海浩
Original assignee: First Affiliated Hospital of Xiamen University
Current assignee: First Affiliated Hospital of Xiamen University
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-02-21
Anticipated expiration: 2032-06-22

Abstract

A syringe structure comprises a syringe body and a syringe needle, wherein a nipple of the syringe body is convexly arranged on the top wall of an empty cylinder, the syringe needle comprises a needle seat, and the needle seat is sleeved and fixed at the nipple of the syringe body; the push head structure is also included; the push head structure comprises an arc push rod and a push head; the fixed end of the arc push rod is connected to the side wall of the hollow cylinder, the movable end of the arc push rod bends and extends to the top wall of the hollow cylinder to form an arc, and a pushing gap is formed between the arc push rod and the syringe body; the shuttle-shaped structure of the pushing head comprises an upper top surface and a lower bottom surface, one end of the upper top surface and one end of the lower bottom surface are connected with the movable end of the arc-shaped push rod, and the other ends are converged to form a pushing tip; the pushing tip extends towards the nipple of the empty cylinder; the maximum distance between the upper top surface and the lower bottom surface is larger than the height of the nipple extending out of the top wall of the hollow cylinder. Can push gradually the pushing head between the needle seat of the injection needle and the nipple of the empty cylinder by pressing the arc-shaped push rod, and the separation operation is finished without contacting the injection needle.

Description

Syringe structure

Technical Field

The utility model relates to the field of medical equipment, especially a syringe structure.

Background

Currently, the syringe on the market consists of a syringe barrel and a syringe needle. After the injection needle is used, the needle point part is sharper, so that if the needle is placed randomly, the contaminated needle point can accidentally stab other people, and the risk of disease infection is caused; and because the injection needle of the syringe and the injection syringe belong to different medical wastes, the injection needle belongs to a sharp device and needs special treatment, the used injection needle needs to be separated from the injection syringe by medical personnel and then discarded. Generally, medical personnel directly pull out the injection needle from the injection needle cylinder by using fingers, the fingers directly contact the injection needle, the risk of accidental puncture injury of the contaminated needle point exists, and further the medical personnel can be possibly infected with related diseases.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injector structure, it can contactless syringe needle and separate it, avoids medical personnel to be stabbed, infected, has simple structure, convenient to use, safe and reliable's advantage.

In order to achieve the above purpose, the solution of the utility model is:

a syringe structure comprises a syringe body and a syringe needle, wherein the syringe body comprises an empty cylinder and a nipple, the nipple is convexly arranged on the top wall of the empty cylinder, the syringe needle comprises a needle seat, a needle point and a needle tube which is connected and communicated with the needle seat and the needle point, and the needle seat is sleeved and fixed at the nipple of the syringe body; the push head structure is also included; the push head structure comprises an arc-shaped push rod and a push head;

the fixed end of the arc push rod is connected to the side wall of the hollow cylinder, the movable end of the arc push rod bends and extends towards the top wall of the hollow cylinder to form an arc, and a pushing gap is formed between the arc push rod and the syringe body;

the shuttle-shaped structure of the pushing head comprises an upper top surface and a lower bottom surface, one end of the upper top surface and one end of the lower bottom surface are connected with the movable end of the arc-shaped push rod, and the other ends are converged to form a pushing tip; the pushing tip extends towards the nipple of the empty cylinder; the maximum distance between the upper top surface and the lower bottom surface is larger than the height of the nipple extending out of the top wall of the hollow cylinder. Further, the arc push rod is C-shaped.

Furthermore, the fixed end of the arc push rod is connected to the upper part of the side wall of the hollow cylinder.

Furthermore, the upper top surface is an upward convex curved surface, and the lower bottom surface is a downward convex curved surface.

Furthermore, the lower bottom surface is abutted against the top wall of the hollow cylinder.

Furthermore, the pushing head is provided with a long groove which is communicated with the pushing tip and penetrates through the upper top surface and the lower bottom surface, and the width of the long groove is larger than the diameter of the nipple and smaller than the diameter of the needle seat of the injection needle.

Furthermore, the syringe body still includes piston and piston handle, the nipple protruding locates the empty section of thick bamboo roof to inside the intercommunication empty section of thick bamboo, piston connection piston handle to inside getting into the empty section of thick bamboo from empty section of thick bamboo bottom opening, borrowing by the piston handle promotion, make the piston promote the inside liquid of empty section of thick bamboo and flow out from the nipple.

Furthermore, the pushing head structure and the empty cylinder of the injector body are of an integral structure.

After adopting above-mentioned technical scheme, so through setting up the push head, can push away between syringe needle file and the empty section of thick bamboo nipple through pressing the arc push rod gradually of push head, borrow by the increase of the distance between push head messenger needle file and the empty section of thick bamboo roof to gradually shift out the nipple of empty section of thick bamboo with syringe needle file, finally make the complete syringe body that drops of syringe needle, accomplish the separation operation. Therefore, the injection needle and the injector body can be separated without contact, the risk that fingers are easily polluted by the injection needle when the injection needle is separated manually in the prior art can be avoided, and the risk that the fingers are partially punctured by the needle tip to cause infection can be avoided.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

fig. 3 is a side view of an embodiment of the present invention;

fig. 4 is a top view of an embodiment of the present invention;

fig. 5 is a usage state diagram of the embodiment of the present invention.

Description of the symbols:

100. an injector; 1. syringe body, 11, empty cylinder, 111, empty cylinder side wall, 112, empty cylinder top wall, 12, nipple, 13, piston, 14, piston handle; 2. an injection needle 21, a needle base 22, a needle tip 23 and a needle tube; 3. the pushing head structure comprises a pushing head structure 31, a pushing head 301, an upper top surface 302, a lower bottom surface 311, a pushing tip, H, the maximum distance between the upper top surface and the lower bottom surface, 312, an elongated slot, D1, the width of the elongated slot, D2, the diameter of a nipple, D3, the diameter of a needle seat, 32, an arc-shaped pushing rod 321, a fixed end 322, a movable end 323, a pushing gap 324 and an arc-shaped middle part.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.

As shown in fig. 1 to 5, the syringe structure of the present invention comprises a syringe body 1, an injection needle 2 and a pushing head structure 3, wherein the syringe body 1 comprises an empty cylinder 11, a nipple 12, a piston 13 and a piston handle 14, the nipple 12 is convexly disposed on the top wall of the empty cylinder 11 and communicated with the inside of the empty cylinder 11, the piston 13 is connected with the piston handle 14 and enters the inside of the empty cylinder 11 from the bottom opening of the empty cylinder 11, and the piston 13 pushes the liquid in the empty cylinder 11 to flow out from the nipple 12 by means of the pushing of the piston handle 14; the injection needle 2 comprises a needle seat 21, a needle point 22 and a needle tube 23 connecting and communicating the needle seat 21 and the needle point 22, wherein the needle seat 21 is sleeved and fixed at the nipple 12 of the syringe body 1.

The pushing head structure 3 comprises a pushing head 31 and an arc-shaped pushing rod 32, the arc-shaped pushing rod 32 is in a C shape, a fixed end 321 of the arc-shaped pushing rod 32 is connected to the upper part of the side wall 111 of the hollow cylinder, a movable end 322 of the arc-shaped pushing rod 32 bends and extends to the top wall 112 of the hollow cylinder to form an arc shape, and a pushing gap 323 is formed between the arc-shaped pushing rod 32 and the injector body 1; the pushing head 31 is connected to the movable end 322 of the arc-shaped push rod 32, the pushing head 31 in this embodiment is roughly in a shuttle-shaped structure, one shuttle-shaped tip of the pushing head 31 extends towards the nipple 12 of the hollow cylinder 11, specifically, the shuttle-shaped structure of the pushing head 31 includes an upper top surface 301 and a lower bottom surface 302, one end of the upper top surface 301 and one end of the lower bottom surface 302 are connected to the movable end 322 of the arc-shaped push rod 32, the other ends are converged to form a pushing tip 311, the pushing tip 311 extends towards the space between the needle seat 21 and the nipple 12, and the maximum distance H between the upper top surface and the

lower bottom surfaces

301, 302, that is, the maximum width of the shuttle-shaped structure is greater than the height of the nipple extending out of the top wall 112 of the hollow cylinder.

Referring to fig. 5, due to the pushing gap 323, the middle portion 324 of the arc-shaped push rod 32 can be pushed to displace the movable end 322 of the arc-shaped push rod 32, so as to drive the pushing head 31 to extend between the needle seat 21 of the needle 2 and the nipple 12 of the empty barrel top wall 112 of the syringe body 1, thereby pushing the needle 2 out of the nipple 12.

The upper top surface 301 is a convex curved surface, the lower bottom surface 302 is a convex curved surface, and the lower bottom surface 302 abuts against the hollow cylinder top wall 112. Thereby, the use of the curved upper and

lower surfaces

301, 302 facilitates the extension of the pushing head 31 between the needle seat 21 and the nipple 12 without restriction.

The middle part of the pushing head 31 is provided with an elongated slot 312, the elongated slot 312 is communicated with the pushing tip 311 and penetrates through the upper top surface and the

lower bottom surface

301 and 302, the width D1 of the elongated slot 312 is slightly larger than the diameter D2 of the nipple 12 and smaller than the diameter D3 of the needle seat 21 of the injection needle 2, therefore, when the pushing head 31 pushes, the elongated slot 312 can be embedded in the nipple 12 for limiting, the pushing accuracy is improved, and the pushing head 31 is prevented from deviating.

And the push head structure 3 can be integrated with the empty barrel 11 of the injector body 1.

Since the injection needle 2 of the syringe 100 is different from the syringe body 1 in medical waste, the injection needle 2 needs to be separated from the syringe body 1 after the syringe 100 is used, and the injection needle 2 belonging to a sharp instrument needs to be separately disposed. Therefore, by arranging the pushing head 31, the pushing tip 311 of the pushing head 31 can be gradually pushed into the space between the needle seat 21 of the injection needle 2 and the nipple 12 of the empty barrel 11 by pressing the middle part of the arc-shaped pushing rod 32, the distance between the needle seat 21 and the top wall 112 of the empty barrel is increased by means of the fusiform pushing head 31, so as to gradually push the needle seat 21 of the injection needle 2 out of the nipple 12 of the empty barrel 11, and finally the injection needle 2 completely falls off the injector body 1, thereby completing the separation operation. Therefore, by providing the pushing head 31, the needle 2 and the syringe body 1 can be separated without contact, so that the risk that the finger is easily contaminated by the needle 2 when the needle 2 is separated manually in the prior art can be avoided, and the risk that the finger is partially pricked by the needlepoint 22 to cause infection can be avoided.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that equivalent changes and modifications without departing from the principles of the present invention shall still fall within the protection scope of the present invention for those skilled in the art.

Claims

1. A syringe structure comprises a syringe body and a syringe needle, wherein the syringe body comprises an empty cylinder and a nipple, the nipple is convexly arranged on the top wall of the empty cylinder, and the syringe needle is sleeved and fixed at the nipple of the syringe body by using a needle seat; the method is characterized in that:

the push head structure is also included; the push head structure comprises an arc-shaped push rod and a push head;

the shuttle-shaped structure of the pushing head comprises an upper top surface and a lower bottom surface, one end of the upper top surface and one end of the lower bottom surface are connected with the movable end of the arc-shaped push rod, and the other ends are converged to form a pushing tip; the pushing tip extends towards the nipple of the empty cylinder; the maximum distance between the upper top surface and the lower bottom surface is larger than the height of the nipple extending out of the top wall of the hollow cylinder.

2. A syringe arrangement according to claim 1, characterized in that: the arc push rod is C-shaped.

3. A syringe arrangement according to claim 1, wherein: the fixed end of the arc push rod is connected to the upper part of the side wall of the hollow cylinder.

4. A syringe arrangement according to claim 1, wherein: the upper top surface is an upward convex curved surface, and the lower bottom surface is a downward convex curved surface.

5. A syringe arrangement according to claim 1, characterized in that: the lower bottom surface is abutted against the top wall of the hollow cylinder.

6. A syringe arrangement according to claim 1, wherein: the pushing head is provided with an elongated slot which is communicated with the pushing tip and penetrates through the upper top surface and the lower bottom surface, and the width of the elongated slot is larger than the diameter of the nipple and smaller than the diameter of the needle seat of the injection needle.

7. A syringe arrangement according to claim 1, characterized in that: the injector body also comprises a piston and a piston handle, the nipple is convexly arranged on the top wall of the hollow cylinder and communicated with the inside of the hollow cylinder, the piston is connected with the piston handle and enters the inside of the hollow cylinder from an opening at the bottom of the hollow cylinder, and the piston is pushed by the piston handle to push the liquid in the hollow cylinder to flow out from the nipple; the injection needle also comprises a needle point and a needle tube which is connected and communicated with the needle base and the needle point.

8. A syringe arrangement according to any one of claims 1 to 7, wherein: the push head structure and the hollow cylinder of the injector body are of an integrated structure.