Improved structure of silicone rubber detail injection head

Abstract

The utility model discloses an improved structure of a silicone rubber detail injection head. The improved structure comprises a connecting part connected with a conveyor joint, the needle head part is connected to the front end of the connecting part; the connecting part is made of a silicon rubber material, the needle head part is made of a metal material, the front end of the needle head part is provided with an obliquely extending deep body, and the length of the deep body is 10mm. The improved structure solves the problem that an existing conveyor connector cannot go deep into the bottom of a pile way, operation procedures are simplified, clinical operation is simple and convenient, and doctors can use and master the conveyor connector conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of tooth root canal treatment, in particular to an improved structure of a silicone rubber detail injection head. Background Art

[0002] After the tooth undergoes root canal treatment (root canal treatment is a treatment method for pulpitis, pulp necrosis or apical periodontitis, which has value but cannot preserve the pulp. The principle is to remove the infection in the root canal by mechanical and chemical methods, and to fill the root canal, seal the crown, prevent the occurrence of periapical lesions and promote the healing of the existing periapical lesions, so as to achieve the treatment method of preserving the tooth), some cases require a metal post and core crown (a post and core crown is a restoration made on the post and core, which consists of a post, core and a crown. Post and core crown is a commonly used restoration method for repairing large-area tooth defects. Large-area tooth defects refer to the loss of most of the hard tissue of the crown of the affected tooth, and even involve the root of the tooth. Due to the small amount of remaining tooth tissue, it is impossible to use a full crown alone. The crown obtains good retention. In order to increase retention, a part of the restoration is inserted into the root canal to obtain retention, and the part of the restoration inserted into the root canal is called a post. The early posts and crowns were integrated, and this type of crown restoration that uses a post to insert into the root canal to obtain retention is called a post-crown. The post crown currently used has improved the traditional post crown, and the post and the full crown on the outside are made separately, each independent, and is called a post and core crown. ) restoration, the metal post and core are made by cutting or casting, and a model is required to reproduce the true situation of the root canal. Because silicone rubber has good hydrophilicity, fluidity, excellent morphological stability, very little shrinkage or deformation, high precision, can be sterilized, has a long storage time, can be repeatedly re-molded and is easy to operate, it is used by most physicians.

[0003] Currently, silicone rubber detail joints are resin joints with large diameters at the tips, which cannot penetrate deep into the bottom of the pile channel. This results in the inability of the printing film material to enter the bottom of the pile channel in one go, requiring the use of a screw conveyor or other methods to introduce it, increasing the workload and placing higher demands on clinical fabrication.

[0004] See also Figure 1 Figure 1 shows the structure of the silicone rubber detail connector and the conveyor connector in the prior art. The tip of the conventional silicone rubber detail connector has a larger diameter, allowing for smooth material delivery and suitable for use in relatively confined oral spaces. However, the tip cannot penetrate deeply into the stump channel, preventing the printing material from reaching the bottom of the stump channel all at once. This requires the use of a screw conveyor or other method, otherwise air bubbles are likely to form.

[0005] Therefore, based on the above technical problems, technicians in this field urgently need to develop an improved structure of a silicone rubber detail injection head. Utility Model Content

[0006] The purpose of the utility model is to provide an improved structure of a silicone rubber detail injection head, which solves the problem that the existing conveyor joint cannot penetrate deep into the bottom of the pile channel, simplifies the operation process, and makes clinical operation simple and convenient.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] The utility model provides an improved structure of a silicone rubber detail injection head, the improved structure comprising:

[0009] A connection portion to be connected to a conveyor coupling; and

[0010] a needle head connected to the front end of the connecting portion;

[0011] The connecting portion is made of silicone rubber, the needle head is made of metal, and the front end of the needle head has a penetrating body extending obliquely, and the length of the penetrating body is 10 mm.

[0012] Furthermore, the needle head includes:

[0013] a needle connector connected to the connecting portion; and

[0014] The penetration body is formed at the front end of the needle connector;

[0015] The needle connector is coaxially arranged with the connecting portion, and the penetrating body extends downwardly at an inclined angle to the needle connector.

[0016] Furthermore, the included angle between the penetration body and the needle connector is 130°.

[0017] Furthermore, the needle connector is partially embedded in the connecting portion, and the length of the portion of the needle connector extending to the outside of the connecting portion is 4 mm.

[0018] Furthermore, the penetration body and the needle connector are integrally formed, and the penetration body is formed by bending to be formed at the front end of the needle connector.

[0019] Furthermore, the connecting portion includes:

[0020] a first connecting portion connected to the needle connector and disposed outside the needle connector; and

[0021] A second connecting part body is integrally formed on one end of the first connecting part body and the conveyor joint.

[0022] Furthermore, the first connecting portion is configured in a stepped shape, and the first connecting portion includes:

[0023] Ring;

[0024] a straight cylindrical portion connected to the ring portion; and

[0025] A tapered cylinder portion is formed at the front end of the straight cylinder portion, and the needle connector is embedded in the tapered cylinder portion.

[0026] Furthermore, the second body of the connecting portion is configured as a straight cylindrical structure connected to the ring portion.

[0027] Furthermore, the length of the first body of the connecting portion is 6 mm.

[0028] In the above technical solution, the improved structure of the silicone rubber detail injection head provided by the utility model has the following beneficial effects:

[0029] The improved structure of the utility model solves the problem that the existing conveyor joint cannot penetrate deep into the bottom of the pile channel, simplifies the operation process, makes clinical operation simple and convenient, and is easy for doctors to use and master.

[0030] The improved structure of the utility model utilizes the characteristics of the metal needle with thin side wall, high hardness and large cavity, and combines the metal needle with resin silicone rubber detail material to ensure that it can smoothly enter the narrow space and the bottom of the bolt channel. The bolt channel is filled with material using a step-by-step retreat method without the need for a conveyor. The printing film material is taken out after solidification, which can fully reflect the condition of the root canal bolt channel and achieve a better repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic diagram of the connection structure between the needle structure and the conveyor in the prior art;

[0033] Figure 2 This is a schematic structural diagram of an improved structure of a silicone rubber detail injection head disclosed in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Connecting part; 2. Needle head;

[0036] 101. Connecting part second body; 102. Ring part; 103. Straight tube part; 104. Conical tube part; 201. Needle connecting body; 202. Penetrating body. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] See also Figure 2 As shown;

[0039] This embodiment discloses an improved structure of a silicone rubber detail injection head, the improved structure comprising:

[0040] A connection portion 1 connected to a conveyor joint; and

[0041] A needle head 2 connected to the front end of the connecting part 1;

[0042] The connecting portion 1 is made of silicone rubber, the needle head 2 is made of metal, and the front end of the needle head 2 has a deep-penetrating body 202 extending obliquely, and the length of the deep-penetrating body 202 is 10 mm.

[0043] Specifically, this embodiment discloses an improved structure for a silicone rubber detail injection head, comprising a connecting portion 1 and a needle head 2. The needle head 2 is made of metal, primarily leveraging its advantages of high hardness, thin sidewalls, and large cavity. The connecting portion 1 is made of silicone rubber. Because most crowns are approximately 10 mm long, the clinical requirement is a maximum crown-to-root ratio of 1:1. Therefore, the crown-to-post length ratio is a maximum of 1:1, and the post channel depth is a minimum of 10 mm. The 10 mm tip of the post-core metal needle is curved 130 degrees, accommodating both posterior and anterior teeth and facilitating operation. This design also allows for direct observation of the silicone rubber detail injection process, preventing the formation of bubbles.

[0044] Secondly, during the improvement process of the structure of this embodiment, it was found that using a 0.7mm needle can penetrate deep into the bottom of the bolt channel, leaving an overflow channel at the edge, and at the same time, the push-out resistance is acceptable to clinical physicians and does not affect the injection of silicone rubber details. If the needle is too thin, the resistance to injection of silicone rubber details will be too great, and if it is too thick, it will affect the depth of entry into the pile channel and also affect the overflow of the impression material.

[0045] This embodiment further defines the structure of the needle head 1 and the connecting portion 2, wherein the needle head 1 of this embodiment includes a needle connecting body 201 connected to the connecting portion 2; and a deep body 202 formed at the front end of the needle connecting body 201;

[0046] The needle connector 201 is coaxially arranged with the connecting portion 1 , and the penetrating body 202 extends downwardly at an angle to the needle connector 201 .

[0047] In this embodiment, the included angle between the penetration body 202 and the needle connector 201 is 130°.

[0048] The needle connector 201 of this embodiment is partially embedded in the connecting portion 1 , and the length of the portion of the needle connector 201 extending to the outside of the connecting portion 1 is 4 mm.

[0049] During molding, the penetration body 202 of this embodiment is integrally formed with the needle connector 201 , and the penetration body 202 is formed at the front end of the needle connector 201 by bending.

[0050] Preferably, the connecting part 1 of this embodiment includes a connecting part first body connected to the needle connecting body 201 and arranged outside the needle connecting body 201; and a connecting part second body 101 integrally formed at one end of the connecting part first body and the conveyor connector.

[0051] Among them, the first body of the connecting part of this embodiment is configured in a stepped shape, and the first body of the connecting part includes a ring part 102, a straight tube part 103 connected to the ring part 102, and a conical tube part 104 formed at the front end of the straight tube part 103, and the needle connector 201 is embedded in the conical tube part 104.

[0052] The second connecting portion 101 of this embodiment is configured as a straight cylindrical structure connected to the ring portion 102. The length of the first connecting portion is 6 mm.

[0053] In the above technical solution, the improved structure of the silicone rubber detail injection head provided by the utility model has the following beneficial effects:

[0054] The improved structure of the utility model solves the problem that the existing conveyor joint cannot penetrate deep into the bottom of the pile channel, simplifies the operation process, makes clinical operation simple and convenient, and is easy for doctors to use and master.

[0055] The improved structure of the utility model utilizes the characteristics of the metal needle with thin side wall, high hardness and large cavity, and combines the metal needle with resin silicone rubber detail material to ensure that it can smoothly enter the narrow space and the bottom of the bolt channel. The bolt channel is filled with material using a step-by-step retreat method without the need for a conveyor. The printing film material is taken out after solidification, which can fully reflect the condition of the root canal bolt channel and achieve a better repair effect.

[0056] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An improved structure of a silicone rubber detail injection head, characterized in that: The improved structure includes: a connecting portion (1) connected to a conveyor joint; and A needle head (2) connected to the front end of the connecting portion (1); The connecting portion (1) is made of silicone rubber, the needle head (2) is made of metal, and the front end of the needle head (2) has a deep-penetrating body (202) extending obliquely, and the length of the deep-penetrating body (202) is 10 mm.

2. The improved structure of the silicone rubber detail injection head according to claim 1, characterized in that: The needle head (2) comprises: a needle connector (201) connected to the connecting portion (1); and The penetration body (202) is formed at the front end of the needle connector (201); The needle connector (201) is coaxially arranged with the connecting portion (1), and the penetrating body (202) extends downwardly at a certain angle to the needle connector (201).

3. The improved structure of the silicone rubber detail injection head according to claim 2, characterized in that: The angle between the penetrating body (202) and the needle connecting body (201) is 130°.

4. The improved structure of the silicone rubber detail injection head according to claim 2, characterized in that: The needle connector (201) is partially embedded in the connecting portion (1), and the length of the portion of the needle connector (201) extending to the outside of the connecting portion (1) is 4 mm.

5. The improved structure of a silicone rubber detail injection head according to any one of claims 2 to 4, characterized in that: The penetrating body (202) and the needle connector (201) are integrally formed, and the penetrating body (202) is formed at the front end of the needle connector (201) by bending.

6. The improved structure of the silicone rubber detail injection head according to claim 2, characterized in that: The connecting portion (1) comprises: a first connecting portion connected to the needle connector (201) and arranged outside the needle connector (201); and A second connecting part body (101) is integrally formed on one end of the first connecting part body and the conveyor joint.

7. The improved structure of the silicone rubber detail injection head according to claim 6, characterized in that: The first connecting portion is configured in a stepped shape, and includes: Ring (102); a straight tube portion (103) connected to the ring portion (102); and A tapered cylindrical portion (104) is formed at the front end of the straight cylindrical portion (103), and the needle connector (201) is embedded in the tapered cylindrical portion (104).

8. The improved structure of the silicone rubber detail injection head according to claim 7, characterized in that: The second connecting portion (101) is configured as a straight cylindrical structure connected to the ring portion (102).

9. The improved structure of the silicone rubber detail injection head according to claim 7, characterized in that: The length of the first body of the connecting portion is 6 mm.

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