Acid etching jig for implant end head protection

Abstract

The oral implant tip protection etching jig comprises a main body with a threaded blind hole, a sealing gasket with a central through hole, a fixing nut with a central through hole, a lower part of which is formed with an internal threaded hole, and an upper part of which receives the sealing gasket in an interference fit, and a multi-stage screw rod with an upper threaded rod part, a middle threaded rod part, and a lower threaded rod part. An intermediate light rod part is arranged between the upper threaded rod part and the middle threaded rod part, and the intermediate light rod part is formed with a small annular shoulder and a large annular shoulder. The lower threaded rod part is threadedly connected with the threaded blind hole of the main body, and the middle threaded rod part is threadedly connected with the internal threaded hole of the fixing nut. The upper threaded rod part is used for threadedly connecting the internal thread of the oral implant. The central through hole of the sealing gasket is used for interference fit receiving the open tip of the oral implant and abutting against the small annular shoulder of the intermediate light rod part. The sealing gasket abuts against the large annular shoulder of the intermediate light rod part. The etching jig can effectively protect the open tip of the oral implant from corrosion by acid liquid.

Description

Technical Field

[0001] This utility model relates to an acid etching fixture, which is particularly suitable for dental implants. Background Technology

[0002] Dental implants are also known as dental implants or artificial tooth roots. Figure 1 A schematic diagram of a single-piece dental implant (SPC) is shown, which has external threads 1, internal threads 2, and an open end with a smooth circumferential surface 3 and a smooth annular end face 4. Dental implants are surgically inserted into the maxilla or mandible at the site of tooth loss. After the surgical wound heals, the threads integrate with the maxilla or mandible. Before use, implants typically undergo acid etching to create a microporous structure at the threads, increasing surface roughness, thereby increasing the bone contact area, promoting osseointegration, and improving the initial stability of the dental implant.

[0003] During the acid etching process described above, the smooth open end (including the smooth circumferential surface 3, the smooth annular end surface 4, and the transitional conical surface between them) should not be etched. If these smooth surfaces connected to the denture are corroded, bone cells will overgrow in these areas after the dental implant is placed, thus affecting its subsequent fit with the denture. Utility Model Content

[0004] The purpose of this invention is to provide an acid etching fixture for dental implants, which can at least effectively protect the opening end of the dental implant during the acid etching process.

[0005] According to this utility model, a dental implant tip protection etching fixture is provided, comprising:

[0006] The main body has an upward-opening threaded blind hole;

[0007] The sealing gasket has a central through-hole;

[0008] A fixing nut has a central through hole, the lower part of which forms an internally threaded hole, and the upper part of which receives a sealing gasket with an interference fit; and

[0009] The multi-stage screw has an upper threaded shank, an intermediate threaded shank, and a lower threaded shank. An intermediate smooth shank is provided between the upper threaded shank and the intermediate threaded shank. The intermediate smooth shank has a small annular shoulder and a large annular shoulder.

[0010] The lower threaded rod is threaded to the threaded blind hole of the main body, the middle threaded rod is threaded to the internal threaded hole of the fixing nut, the upper threaded rod is used to thread the internal thread of the dental implant, the central through hole of the sealing pad is used to receive the opening end of the dental implant in an interference fit manner and make it abut against the smaller annular shoulder of the middle smooth rod, and the sealing pad abuts against the larger annular shoulder of the middle smooth rod.

[0011] According to the dental implant end protection etching fixture of this utility model, the upper part of the central through hole of the fixing nut preferably does not form a thread and tapers upward.

[0012] According to the dental implant tip protection etching fixture of this utility model, the central through hole of the sealing gasket is preferably at least partially tapered upwards.

[0013] According to the present invention, the dental implant tip protection etching fixture preferably has a stepped outer contour, comprising an upper platform and a lower fixing shaft. This shape of the outer contour facilitates quick fixation for operations such as sandblasting and etching.

[0014] According to the dental implant tip protection etching fixture of this utility model, the lower surface of the fixing nut is preferably flush with the upper surface of the upper platform of the main body. In this case, an inverted annular shoulder can be formed between the middle threaded part and the lower threaded part of the multi-stage screw, which abuts against the upper surface of the upper platform of the main body.

[0015] According to the dental implant end protection etching fixture of this utility model, the multi-stage screw preferably has the largest outer diameter at the middle threaded section.

[0016] According to the dental implant tip protection etching fixture of this utility model, the sealing gasket is preferably an elastic sealing gasket.

[0017] According to the dental implant tip protection acid etching fixture of this utility model, the fixing nut is preferably made of acid-resistant plastic.

[0018] According to the present invention, the dental implant tip protection acid etching fixture is preferably made of acid-resistant plastic.

[0019] The dental implant tip protection etching fixture of this utility model, including the sealing gasket, is preferably made of acid-resistant material.

[0020] This utility model has at least the following advantages:

[0021] (1) By connecting or disconnecting the internal thread of the dental implant from the upper thread of the screw, the acid etching fixture can be quickly disassembled and assembled.

[0022] (2) During the above threaded connection process, the sealing gasket effectively seals the open end of the oral implant, including the smooth circumferential surface and the smooth annular end face, thereby effectively protecting the open end from acid corrosion.

[0023] (3) The acid etching fixture is easy to fix due to its stepped outer contour, so as to carry out sandblasting and acid etching operations. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a commonly used dental implant;

[0025] Figure 2 This is a partial assembly structure diagram of the acid etching fixture according to the present invention;

[0026] Figure 3 This is a schematic diagram of the sealing gasket structure of the acid etching fixture according to the present invention;

[0027] Figure 4 This is a schematic diagram of the fixing nut of the acid etching fixture according to the present invention;

[0028] Figure 5 for Figure 2 A detailed schematic diagram of the main body of the acid etching fixture shown.

[0029] Figure 6 for Figure 2 A detailed schematic diagram of the multi-stage screw of the acid etching fixture shown.

[0030] Figure 7 for Figure 3 A detailed schematic diagram of the sealing gasket is shown;

[0031] Figure 8 for Figure 4 A detailed schematic diagram of the fixing nut is shown; and

[0032] Figure 9 for Figure 1 The diagram shows a dental implant combined with an etching fixture according to the present invention for use in an etching work tank. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] Figure 2 This is a partial assembly structure diagram of the acid etching fixture according to the present invention. Figure 3 This is a schematic diagram of the sealing gasket structure of the acid etching fixture according to this utility model. Figure 4 This is a schematic diagram of the fixing nut of the acid etching fixture according to this utility model. Figure 5 for Figure 2A detailed schematic diagram of the main body of the acid etching fixture shown. Figure 6 for Figure 2 A detailed schematic diagram of the multi-stage screw of the acid etching fixture shown. Figure 7 for Figure 3 A detailed schematic diagram of the sealing gasket is shown. Figure 8 for Figure 4 A detailed schematic diagram of the fixing nut is shown. (See attached diagram.) Figure 2-8 As shown, the acid etching fixture of this utility model generally includes a main body 5, a multi-stage screw 6, a sealing gasket 7, and a fixing nut 8.

[0035] like Figure 2 and Figure 5 As shown, the main body 5 has a three-tiered stepped outer profile, comprising an upper platform 9 and a lower fixed shaft 11. The lower fixed shaft can be inserted into the fixing holes of the sandblasting machine spindle and the acid etching tank to achieve precise positioning of the fixture. The main body 5 also has an upward-opening threaded blind hole 10. The main body 5 can be made of acid-resistant plastic.

[0036] like Figure 2 and Figure 6 As shown, the multi-stage screw 6 has an upper threaded shank 15, an intermediate threaded shank 13, and a lower threaded shank 12. An intermediate smooth shank 14 is provided between the upper threaded shank 15 and the intermediate threaded shank 13. The intermediate smooth shank 14 has a smaller annular shoulder 16 and a larger annular shoulder 17, both of which are planar shoulders. The multi-stage screw 6 has its maximum outer diameter at the intermediate threaded shank 13. Furthermore, an inverted annular shoulder 18 (also a planar shoulder, used to abut against the upper surface of the upper platform 9 of the main body 5, as described later) is formed between the intermediate threaded shank 13 and the lower threaded shank 12 of the multi-stage screw 6.

[0037] like Figure 3 and Figure 7 As shown, the sealing gasket 7, made of elastic material, has a longitudinal central through hole. The upper part of the central through hole forms a conical surface 21, and the lower part is a cylindrical surface 20. The sealing gasket 7 also has an upper outer circumferential wall 22. The bottom surface or lower surface 19 of the sealing gasket 7 is used to abut against the annular shoulder 17 of the intermediate smooth rod portion 14.

[0038] like Figure 4 and Figure 8 As shown, the fixing nut 8 has a longitudinal central through hole, the lower part of which forms an internal threaded hole 24, and the upper part forms a conical surface 25. The bottom surface or lower surface 23 of the fixing nut 8 is flush with the upper surface of the upper platform 9 of the main body 5. The fixing nut 8 can be made of acid-resistant plastic.

[0039] Figure 9 for Figure 1 The diagram shows a dental implant combined with an etching fixture according to the present invention for use in an etching work tank. (See diagram for reference.) Figure 2 and Figure 9 As shown, first screw the lower threaded portion 12 of the multi-stage screw 6 into the threaded blind hole 10 of the main body 5 until the inverted annular shoulder 18 abuts against the upper surface of the upper platform 9 of the main body 5. Then... Figure 1 The dental implant shown is inverted, with its open end fitted onto the upper threaded portion 15 of the multi-stage screw 6, and its internal thread 2 forming a threaded connection with the upper threaded portion 15, until the smooth annular end face 4 of the dental implant's open end abuts against the smaller annular shoulder 16 of the intermediate smooth portion 14. Next, the sealing pad 7 is fitted over the dental implant onto the intermediate smooth portion 14, with the cylindrical surface 20 forming an interference fit with the intermediate smooth portion 14, until the lower surface 19 of the sealing pad 7 abuts against the larger annular shoulder 17 of the intermediate smooth portion 14; simultaneously, the smooth circumferential surface 3 of the dental implant's open end forms an interference fit with the upper conical surface 21 of the central through hole of the sealing pad 7. Finally, the internal threaded hole 24 of the fixing nut 8 is threadedly connected to the intermediate threaded rod portion 13 until the lower surface 23 of the fixing nut 8 abuts against or is flush with the upper surface of the upper platform 9 of the main body 5. At the same time, the upper conical surface 25 of the fixing nut 8 forms an interference fit with the upper outer circumferential wall 22 of the sealing gasket 7. The entire assembly is symmetrical about the central axis 26. In this way, the open end with the smooth circumferential surface 3 and the smooth annular end face 4 is placed in the sealed space formed by the sealing gasket 7 and the smaller annular shoulder 16 of the intermediate smooth rod portion 14, thereby achieving effective isolation from the acid etching solution.

Claims

1. A dental implant tip protection etching fixture, characterized in that, include: The main body has an upward-opening threaded blind hole; The sealing gasket has a central through-hole; A fixing nut has a central through hole, the lower part of which forms an internally threaded hole, and the upper part of which receives a sealing gasket with an interference fit; and The multi-stage screw has an upper threaded shank, an intermediate threaded shank, and a lower threaded shank. An intermediate smooth shank is provided between the upper threaded shank and the intermediate threaded shank. The intermediate smooth shank has a small annular shoulder and a large annular shoulder. The lower threaded rod is threaded to the threaded blind hole of the main body, the middle threaded rod is threaded to the internal threaded hole of the fixing nut, the upper threaded rod is used to thread the internal thread of the dental implant, the central through hole of the sealing pad is used to receive the opening end of the dental implant in an interference fit manner and make it abut against the smaller annular shoulder of the middle smooth rod, and the sealing pad abuts against the larger annular shoulder of the middle smooth rod.

2. The dental implant tip protection etching fixture according to claim 1, characterized in that, The upper part of the central through hole of the fixing nut is not threaded and tapers upward.

3. The dental implant tip protection etching fixture according to claim 1, characterized in that, The central through-hole of the gasket tapers upwards at least partially.

4. The dental implant tip protection etching fixture according to claim 1, characterized in that, The main body consists of an upper platform and a lower fixed shaft.

5. The dental implant tip protection etching fixture according to claim 4, characterized in that, The lower surface of the fixing nut is flush with the upper surface of the upper platform of the main body.

6. The dental implant tip protection etching fixture according to claim 5, characterized in that, An inverted annular shoulder is formed between the intermediate threaded section and the lower threaded section of the multi-stage screw, which abuts against the upper surface of the upper platform of the main body.

7. The dental implant tip protection etching fixture according to claim 1, characterized in that, The multi-stage screw has its maximum outer diameter at the middle threaded section.

8. The dental implant tip protection etching fixture according to claim 1, characterized in that, The sealing gasket is an elastic sealing gasket.

9. The dental implant tip protection etching fixture according to claim 1, characterized in that, The retaining nut is made of acid-resistant plastic.

10. The dental implant tip protection etching fixture according to claim 1, characterized in that, The main body is made of acid-resistant plastic.

Images