CN209734663U

CN209734663U - Dental syringe

Info

Publication number: CN209734663U
Application number: CN201920099834.0U
Authority: CN
Inventors: 胡玲
Original assignee: Yangzhou Smell Medical Technology Co Ltd
Current assignee: Yangzhou Smell Medical Technology Co Ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2019-12-06
Anticipated expiration: 2029-01-18

Abstract

The embodiment of the utility model discloses a dental syringe, which comprises a cylinder body, a needle head, a push rod and a rubber plug; the push rod with the rubber plug fixed at the top is arranged in the barrel body and is in sliding connection with the barrel body; the inner diameter of the upper part of the cylinder body is smaller than that of the lower part of the cylinder body; the lower end of the inner side of the cylinder body is provided with a limiting device, and when the push rod slides, the limiting device is used for limiting the push rod to be separated from the cylinder body; the material of syringe needle is plastics, and set up in the barrel top the syringe needle with barrel integrated into one piece, the syringe needle with be provided with the radian between the barrel. The dental syringe that this embodiment provided, reasonable in design, simple structure, it is very convenient to use, its syringe needle and barrel be the fixed angle of an organic whole, and not only the leakproofness improves greatly, and this dental syringe need not the equipment moreover, and the operation is very simple, has also reduced dental syringe's pollution simultaneously.

Description

Dental syringe

Technical Field

The embodiment of the utility model provides a relate to medical equipment technical field, concretely relates to dental syringe.

Background

The prior dental syringe needs to assemble the metal needle and the barrel before use, so that the operation is complex, the accuracy of the angle between the needle and the barrel after assembly is poor, the pollution of the syringe is easily caused, and the problem of poor sealing performance between the metal needle and the barrel is easily caused.

In addition, the metal needle head has puncture feeling after contacting with the human body, so that people can generate panic feeling instantly, and subsequent medicine injection operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a dental syringe to solve among the prior art because the design of dental injection is unreasonable and the operation that leads to is inconvenient, the relatively poor problem of leakproofness.

in order to achieve the above object, an embodiment of the present invention provides a dental syringe, which includes a barrel, a needle, a push rod and a rubber plug;

The push rod with the rubber plug fixed at the top is arranged in the barrel body and is connected with the barrel body in a sliding manner;

The inner diameter of the upper part of the cylinder body is smaller than that of the lower part of the cylinder body;

The lower end of the inner side of the cylinder body is provided with a limiting device, and when the push rod slides, the limiting device is used for limiting the push rod to be separated from the cylinder body;

The material of syringe needle is plastics, and set up in the barrel top the syringe needle with barrel integrated into one piece, the syringe needle with be provided with the radian between the barrel.

Preferably, the dental syringe further comprises a protective cap, the protective cap covers the outer side of the needle, and the protective cap is detachably connected with the needle.

Preferably, the limiting device is a first annular protrusion arranged along the circumference of the inner wall of the cylinder.

Preferably, the upper end periphery of the push rod is provided with a second annular protrusion matched with the first annular protrusion.

Preferably, the dental syringe further comprises a barrel bead, the barrel bead is arranged at the bottom of the barrel, and the barrel bead are integrally formed.

Preferably, the arc between the needle and the barrel is 90-145 °.

The embodiment of the utility model provides a have following advantage:

The embodiment of the utility model provides a dental syringe, it includes barrel, syringe needle, push rod and plug. Wherein, the fixed angle of syringe needle and barrel for an organic whole formation, not only the leakproofness improves greatly, and this dental syringe need not the equipment moreover, and the operation is very simple, has also reduced dental syringe's pollution simultaneously.

In addition, the needle head is made of plastic, so that the psychological burden and the nervous mood of the patient are avoided in the treatment process, the patient can be more easily and comfortably matched with the treatment of a doctor, the treatment pressure of the doctor is greatly reduced, and the comfort and the safety of the treatment process are improved.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

fig. 1 is a schematic structural diagram of a barrel and a protective cap of a dental syringe according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a push rod of a dental injector according to an embodiment of the present invention.

In the figure: 1-barrel, 2-needle, 3-push rod, 4-rubber plug, 5-protective cap, 6-barrel edge, 7-first annular bulge and 8-second annular bulge.

Detailed Description

the present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

in the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

example 1

As shown in fig. 1 and 2, the present embodiment provides a dental injector, which includes a barrel 1, a needle 2, a push rod 3 and a rubber plug 4, wherein the push rod 3 with the rubber plug 4 fixed on the top is installed inside the barrel 1, and the push rod 3 is slidably connected to the barrel 1; the inner diameter of the upper part of the cylinder 1 is smaller than that of the lower part of the cylinder 1. It should be noted that the position of the reducing between the upper part and the lower part of the cylinder 1 is the pre-filling access point, so that the filled medicine is directly injected from the smaller pipe diameter part of the cylinder 1, and the medicine is adhered to the inner wall of the lower part of the cylinder 1 when the push rod 3 is pushed into the cylinder 1 for injection.

In a particular embodiment, the length of the upper part of the cartridge 1 is two thirds of the total length of the cartridge 1.

Preferably, the dental syringe further comprises a protective cap 5, the protective cap 5 covers the outside of the needle 2, and the protective cap 5 is detachably connected with the needle 2. The protective cap 5 can protect the needle 2 well.

Specifically, the lower end of the inner side of the barrel 1 is provided with a limiting device, and when the push rod 3 slides downwards, the limiting device is used for limiting the push rod 3 to be separated from the barrel 1, so that the push rod 3 is effectively limited to be separated from the barrel 1 when sliding.

Preferably, the limiting means is a first annular protrusion 7 arranged along the circumference of the inner wall of the barrel 1. The first annular bulge 7 greatly simplifies the structure of the limiting device, and the limiting operation is simpler and more convenient.

Further preferably, the upper end outer periphery of the push rod 3 is provided with a second annular projection 8 which is identical to the first annular projection 7. The cooperation of the second annular protrusion 8 and the first annular protrusion 7 can prevent the push rod 3 from falling off when sliding downward.

Further specifically, the material of syringe needle 2 is plastics, and sets up in syringe needle 2 and the barrel 1 integrated into one piece at barrel 1 top, is provided with the radian between syringe needle 2 and the barrel 1.

Preferably, the arc between the needle 2 and the barrel 1 is 90-145 °, which enables the arc of the dental syringe to be adjusted according to the position of the teeth in the oral cavity, thereby facilitating the injection of the medicine.

Further preferably, the dental syringe further comprises a barrel bead 6, the barrel bead 6 is arranged at the bottom of the barrel 1, and the barrel 1 and the barrel bead 6 are integrally formed. The barrel bead 6 makes the dental injector easier to handle during injection.

in the embodiment, the needle 2 and the barrel 1 are integrally formed to be fixed at an angle, so that the sealing performance is greatly improved, the dental syringe does not need to be assembled, the operation is very simple, and the pollution of the dental syringe is reduced.

In addition, the needle head 2 is made of plastic, so that the psychological burden and the nervous mood of the patient are avoided in the treatment process, the patient can be more easily and comfortably matched with the treatment of a doctor, the treatment pressure of the doctor is greatly reduced, and the comfort and the safety of the treatment process are improved.

In the present embodiment, the needle 2 and the barrel 1 are integrally formed to have a fixed angle, which greatly improves the stability of the product, and the two are not required to be assembled, so that the user can easily form the habit of using. Meanwhile, the needle head 2 is made of high polymer materials, so that after a human body contacts with the needle head, the needle head is free of pain, relatively soft and easy to accept by a patient.

although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A dental syringe is characterized by comprising a barrel (1), a needle head (2), a push rod (3) and a rubber plug (4);

the push rod (3) with the rubber plug (4) fixed at the top is arranged in the barrel body (1), and the push rod (3) is connected with the barrel body (1) in a sliding manner;

The inner diameter of the upper part of the cylinder body (1) is smaller than that of the lower part of the cylinder body (1);

The lower end of the inner side of the cylinder body (1) is provided with a limiting device, and when the push rod (3) slides, the limiting device is used for limiting the push rod (3) to be separated from the cylinder body (1);

The material of syringe needle (2) is plastics, and set up in barrel (1) top syringe needle (2) with barrel (1) integrated into one piece, syringe needle (2) with be provided with the radian between barrel (1).

2. Dental syringe according to claim 1, further comprising a cap (5), wherein the cap (5) covers the outside of the needle (2), and wherein the cap (5) is detachably connected to the needle (2).

3. Dental syringe according to claim 1, characterized in that the stop means is a first annular protrusion (7) arranged circumferentially along the inner wall of the barrel (1).

4. A dental injector according to claim 3, characterized in that the upper end periphery of the push rod (3) is provided with a second annular projection (8) cooperating with the first annular projection (7).

5. Dental syringe according to claim 1, further comprising a barrel bead (6), wherein the barrel bead (6) is provided at the bottom of the barrel (1) and the barrel (1) is integrally formed with the barrel bead (6).

6. A dental syringe as in claim 1, wherein the arc between the needle (2) and the barrel (1) is 90 ° -145 °.