Dental needle structure

Abstract

The utility model discloses a dental needle structure which comprises a needle tube, the needle tube is arranged in a hollow mode to form a liquid outlet flow channel, one end of the needle tube is used for being matched with an external liquid supply component, the other end of the needle tube is configured to be a free end portion, and liquid outlet side holes communicated with the liquid outlet flow channel are formed in one side and / or two sides of the free end portion. And the injection in the liquid outlet flow channel is sprayed out from the liquid outlet side hole. According to the dental needle capable of discharging liquid from the side, compared with the structural design that water is discharged from a straight hole in the end portion, the side liquid discharging structure cannot cause liquid to block the hole position, the liquid discharging side hole is arranged to be provided with a liquid guiding inclined face expanding outwards to guide the liquid to be sprayed forwards, the liquid spraying flow speed is increased, the liquid discharging hole is prevented from being blocked, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of dental needles, in particular to a dental needle structure. Background Art

[0002] With the improvement of people's living standards, people have moved from primary dental awareness to health care, restoration, and dental beauty, and have more demands for oral medical care. In the treatment of dental problems, it is often necessary to inject liquid medicine or drip water into the oral cavity, gums, or around the teeth through a dental needle. The structure of the dental needle is very small and slender, and injection molding is difficult. Traditional dental needles generally have holes at the liquid outlet end to achieve liquid outlet, but such a structural design has a slow liquid flow rate and a very small hole, which is easy to cause hole blockage, so it is necessary to improve it. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a dental needle structure.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a dental needle structure, which includes a needle tube, the needle tube is hollowly arranged to form a liquid outlet channel, one end of the needle tube is used to cooperate with an external liquid supply component, and the other end of the needle tube is configured as a free end, and one side and / or both sides of the free end are provided with liquid outlet side holes connected to the liquid outlet channel, and the injection liquid in the liquid outlet channel is ejected from the liquid outlet side holes.

[0005] In a further technical solution, at least one liquid outlet side hole is provided on both sides of the free end.

[0006] In a further technical solution, the liquid outlet side hole is a non-circular hole.

[0007] In a further technical solution, the liquid outlet side hole has a first liquid guiding slope that expands laterally outward on the front side and / or rear side along the length direction of the needle tube, and the injection liquid flowing out of the liquid outlet channel is sprayed toward the oblique front under the guidance of the first liquid guiding slope.

[0008] In a further technical solution, the liquid outlet side hole has a second liquid guiding slope that expands longitudinally outward on the upper side and / or lower side along the radial direction of the needle tube, and the aperture of the liquid outlet side hole gradually increases from the liquid inlet end to the liquid outlet end of the liquid outlet side hole.

[0009] In a further technical solution, the aperture of each of the liquid outlet side holes is set to 0.01-0.03 mm.

[0010] In a further technical solution, an assembly portion is formed at one end of the needle tube, and the assembly portion is used to be installed to an external liquid supply component, and the liquid outlet side hole is located between the assembly portion and the free end.

[0011] In a further technical solution, the needle tube includes the guide part connected to the assembly part, and a main pipe part connecting the guide part and the free end. The guide part and / or the main pipe part are conical, and the liquid outlet side hole is located at one end of the main pipe part close to the free end.

[0012] In a further technical solution, the needle tube is formed with a marking ring, which is protruding from the outer surface of the needle tube.

[0013] In a further technical solution, the needle tube is an integrally formed structure, and the needle tube is made of plastic or metal material.

[0014] After adopting the above structure, the utility model has the following advantages compared with the prior art:

[0015] The utility model provides a dental needle with side liquid outlet. Compared with the structural design of water outlet through a straight hole at the end, the side liquid outlet structure will not cause liquid to block the hole, and the liquid outlet side hole is arranged to have an outwardly expanded liquid guiding inclined surface to guide the liquid to spray forward, thereby increasing the liquid injection flow rate and avoiding blockage of the liquid outlet hole, and the utility model is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of another viewing angle of the utility model;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure enlargement at the center A;

[0020] Figure 4 It is a longitudinal sectional schematic diagram of the utility model;

[0021] Figure 5 yes Figure 4 A schematic diagram of the structure enlarged at B in the middle;

[0022] Figure 6 It is a transverse sectional schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0024] like Figures 1 to 6As shown, the utility model provides a dental needle structure, which includes a needle tube 1, the needle tube 1 is hollow to form a liquid outlet channel 100, one end of the needle tube 1 is used to cooperate with an external liquid supply component, and the other end of the needle tube 1 is configured as a free end 11, and one side and / or both sides of the free end 11 are provided with a liquid outlet side hole 110 connected to the liquid outlet channel 100, and the injection liquid in the liquid outlet channel 100 is ejected from the liquid outlet side hole 110.

[0025] During specific operation, the injection liquid enters the liquid outlet channel 100 and then sprays out from the side of the liquid outlet measuring hole 110. Compared with the structural design of the end straight hole water outlet, this structural design will not cause liquid blockage due to the side water outlet.

[0026] In a preferred embodiment, the liquid outlet side holes 110 are opened on both sides of the free end 11. In an optional embodiment, the number of the liquid outlet side holes 110 opened on each side can be one, two or more.

[0027] In this embodiment, the liquid outlet side hole 110 is a non-circular hole.

[0028] Specifically, the liquid outlet side hole 110 has a first liquid guiding slope 111 that expands laterally outward on the front side and / or the rear side along the length direction of the needle tube 1. Such a structural design allows the injection liquid flowing out of the liquid outlet channel 100 to be ejected obliquely forward under the guidance of the first liquid guiding slope 111. Specifically, Figure 3 The arrows shown indicate the action of the injection liquid spraying forward obliquely, and the fluid has a similar effect as forward rushing, which increases the flow rate of the fluid during injection and avoids clogging of the liquid outlet measurement and control 110.

[0029] More specifically, the liquid outlet side hole 110 has a second liquid guiding slope 112 that expands longitudinally outward on the upper side or / and lower side along the radial direction of the needle tube 1. From the liquid inlet end of the liquid outlet side hole 110 to the liquid outlet end of the liquid outlet side hole 110, the aperture of the liquid outlet side hole 110 gradually increases. Such a structural design can increase the liquid outlet volume and liquid outlet flow rate.

[0030] Generally, the aperture of each of the liquid outlet side holes 110 is set to 0.01-0.003 mm.

[0031] Specifically, the needle tube 1 is an integrally formed structure, and the needle tube 1 includes a mounting portion 12, a free end portion 11, the guide portion 10 connected to the mounting portion 12, and a main pipe portion 13 connecting the guide portion 10 and the free end portion 11, wherein the first end of the needle tube 1 forms the mounting portion 12, and the second section of the needle tube 1 forms the free end portion 11, and the mounting portion 12 is used to be installed to an external liquid supply component, such as generally connected to a liquid storage structure, such as Figure 1As shown, the connecting assembly part 12 is arranged as a columnar structure, which can increase the connection area and facilitate the installation of the needle tube 1, and the guide part 10 and / or the main pipe part 13 are arranged as a cone. Since the overall structure of the needle tube 1 is very slender and the injection molding difficulty is high, the guide part 10 is arranged with a conical structure, which can improve the injection molding, one-time molding, and improve the yield of the product. The liquid outlet side hole 110 is located at one end of the main pipe part 13 close to the free end 11.

[0032] The needle tube 1 is formed with a plurality of identification rings 101, which are protruding from the outer surface of the needle tube 1. The number of identification rings 101 is set as an identification feature. Specifically, according to the number of identification rings 101, it can be determined whether the needle tube 1 is style A or style B, or a customized style for customer A or customer B, so as to distinguish different batches of needle tubes 1.

[0033] In a preferred embodiment, the needle tube 1 is made of plastic material. In a feasible embodiment, the needle tube 1 can also be made of metal material.

[0034] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A dental needle structure, characterized in that: The invention comprises a needle tube (1), wherein the needle tube (1) is hollow and forms a liquid outlet channel (100), one end of the needle tube (1) is used to cooperate with an external liquid supply component, and the other end of the needle tube (1) is configured as a free end portion (11), and one side and / or both sides of the free end portion (11) are provided with a liquid outlet side hole (110) connected to the liquid outlet channel (100), and the injection liquid in the liquid outlet channel (100) is ejected from the liquid outlet side hole (110).

2. A dental needle structure according to claim 1, characterized in that: At least one liquid outlet side hole (110) is formed on both sides of the free end portion (11).

3. A dental needle structure according to claim 1, characterized in that: The liquid outlet side hole (110) is a non-circular hole.

4. A dental needle structure according to claim 1, characterized in that: The liquid outlet side hole (110) has a first liquid guiding inclined surface (111) that expands laterally outward on the front side and / or the rear side along the length direction of the needle tube (1), and the injection liquid flowing out of the liquid outlet channel (100) is sprayed obliquely forward under the guidance of the first liquid guiding inclined surface (111).

5. A dental needle structure according to claim 1, characterized in that: The liquid outlet side hole (110) has a second liquid guiding inclined surface (112) which expands longitudinally outward on the upper side and / or the lower side along the radial direction of the needle tube (1), and the aperture of the liquid outlet side hole (110) gradually increases from the liquid inlet end of the liquid outlet side hole (110) to the liquid outlet end of the liquid outlet side hole (110).

6. A dental needle structure according to claim 1, characterized in that: The aperture of each of the liquid outlet side holes (110) is set to 0.01-0.03 mm.

7. A dental needle structure according to claim 1, characterized in that: One end of the needle tube (1) forms an assembly portion (12), the assembly portion (12) being used to be mounted to an external liquid supply component, and the liquid outlet side hole (110) is located between the assembly portion (12) and the free end portion (11).

8. A dental needle structure according to claim 7, characterized in that: The needle tube (1) comprises a flow guide portion (10) connected to the assembly portion (12), and a main pipe portion (13) connected to the flow guide portion (10) and a free end portion (11); the flow guide portion (10) and / or the main pipe portion (13) are in the form of a cone, and the liquid outlet side hole (110) is located at one end of the main pipe portion (13) close to the free end portion (11).

9. A dental needle structure according to claim 1, characterized in that: The needle tube (1) is formed with a marking ring (101), and the marking ring (101) is protruding from the outer surface of the needle tube (1).

10. The dental needle structure according to claim 1, characterized in that: The needle tube (1) is of an integrally formed structure, and the needle tube (1) is made of plastic or metal material.

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