CN107928819B

CN107928819B - Tent nail

Info

Publication number: CN107928819B
Application number: CN201711164532.9A
Authority: CN
Inventors: 邹多宏; 黄伟; 吴轶群; 孙媛元
Original assignee: Shanghai Renjie Industry Co ltd
Current assignee: Shanghai Renjie Industry Co ltd
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2024-04-16
Anticipated expiration: 2037-11-21
Also published as: CN107928819A

Abstract

The invention belongs to the technical field of medical appliances, and discloses a tent nail which comprises a head, a body and a bottom, wherein the head is tent-shaped, the body is connected below the head, the connection part is an inverted round table with the upper size and the lower size, the bottom is arranged below the body, the bottom is of a threaded structure, a blind hole with a cuboid shape is formed in the head, the body is a smooth cylinder, and the bottom thread is a self-tapping thread. The invention is beneficial to supporting the form of the bone grafting area, preventing the collapse and deformation of the bone grafting area and maintaining the steady-state environment of the bone grafting area, thereby being beneficial to the formation of new bone.

Description

Tent nail

Technical Field

The invention belongs to the technical field of medical appliances, and particularly relates to a tent nail.

Background

With the increasing maturity of dental implant technology, the use of dental implants for the reconstruction of oral functions has become a conventional treatment scheme. But patients with alveolar bone defects, especially patients with severe bone loss, are often encountered clinically, which presents challenges for implant repair. The problem of insufficient alveolar bone mass can be effectively solved by a bone increment technology, and the conventional bone increment technology is as follows: guided bone regeneration techniques (guided bone regeneration, GBR), onlay bone grafting, distraction osteogenesis, and the like. Among them, GBR technology is most widely used and effects are expected, which has the following advantages: 1. the operation is simpler, and postoperative complications are fewer; 2. patient comfort is better than other bone augmentation techniques; 3. the application range is wide, and various types of bone defects can be used. However, the traditional GBR technology is not enough for the maintenance capability of the space due to the poor mechanical strength of the barrier membrane, and can be only used for patients with a small range of bone defects, and for patients with a large range of bone defects, the GBR technology needs to use titanium mesh and titanium membrane in a matching way to maintain the space morphology, but the application of the titanium mesh and the titanium membrane often causes the rupture of soft group wounds, the exposure (10% -70%) of the implantation membrane, and finally the failure of the GBR technology.

Disclosure of Invention

In order to solve the technical problems, the invention provides a tent nail which is beneficial to supporting a bone grafting area and fixing a barrier membrane.

The technical scheme adopted by the invention is as follows:

the utility model provides a tent nail, its characterized in that, includes head, body and bottom, the head is tent shape, the body is connected in the head below, and the junction is the inversion round platform of big-and-small down, the bottom sets up in the body below, and the bottom is the helicitic texture, it has the blind hole of cuboid shape to open on the head, the body is smooth cylinder, the bottom screw thread is self-tapping screw thread.

Further, the size of the blind hole is 1.2mm multiplied by 2mm, the tolerance range of the size is +/-0.1 mm, and a conical hole is arranged below the blind hole.

Further, the diameter of the upper end of the body is 0.1-0.2mm larger than that of the lower end.

Further, the head has a diameter of 5.5-6.5mm and a height of 2-3mm.

Further, the length of the bottom is 3-5mm, and the total length of the body and the bottom is 7-14mm.

The beneficial effects of the invention are as follows:

(1) The blind holes at the heads of the tent nails can firmly fix the barrier film on the tent nails through the film matching nails;

(2) The different length specifications are suitable for patients with bone defects of different degrees;

(3) The square blind hole at the top end of the tent nail is a universal opening, and can be implanted or removed by using a screwdriver or a spanner of an implantation system, and a specific screwdriver or spanner is not needed;

(4) The tent nail has good stability, can replace titanium and a net titanium film, and can perform horizontal or vertical bone increment technology;

(5) The tent nail is favorable for supporting the shape of the bone grafting area, preventing the bone grafting area from collapsing and deforming, and maintaining the steady-state environment of the bone grafting area, thereby being favorable for the formation of new bones.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic diagram of an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of tent pegs and membrane fitting pegs;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a schematic representation of the structure of tent pegs for use in horizontal bone loss disorders;

FIG. 7 is a schematic representation of the structure of tent pegs for use in a vertical bone loss disorder;

fig. 8 is a schematic representation of the structure of tent pegs for use in mixed bone loss disorders.

The reference numerals in the drawings are respectively:

1. a head; second, the body part;

3. a bottom; fourth, blind holes;

10. tent nails; fifthly, film matching and nailing;

30. alveolar bone; 40. bone supplement;

50. a collagen membrane; 60, membrane nailing.

Detailed Description

The following describes the tent peg in detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a tent nail 10 comprises a head 1, a body 2 and a bottom 3, wherein the head 1 is in a tent shape, the body 2 is connected below the head 1, the connection part is an inverted round table with the upper size down, the bottom 3 is arranged below the body, the bottom 3 is in a threaded structure, a blind hole 4 in a cuboid shape is formed in the head 1, the body 2 is a smooth cylinder, and threads of the bottom 3 are self-tapping threads.

Referring to fig. 3, one specific design of tent peg 10 is as follows:

(1) Head 1: is a hemispherical expansion part with the diameter of 6mm, the height is 2-3mm, the tent is similar to a tent, a blind hole 4 is arranged in the middle, the blind hole 4 is a column cuboid with the shape of 1.2mm multiplied by 2mm, and the opening at the lower part of the cuboid is gradually pointed to form a conical hole. The tolerance range of the dimension is + -0.1 mm.

(2) Body 2: the body is mainly a smooth cylinder with the diameter: 1.2mm, which can be divided into four types according to different lengths: 3.5mm,5.5mm,8.5mm,10.5mm, for patients with bone defects of different degrees. The upper end of the body part is an inverted truncated cone shape and gradually connected with the head part. The column may be slightly tapered with a lower diameter of 1.0mm.

(3) Bottom 3: tent nail bottom is the helicitic texture, length: 3.5mm, and can be modified to 3-5mm according to actual needs. The bottommost part is a thread tip, the thickness is gradually increased from bottom to top, and the diameter of the uppermost thread is 1.0mm. In use, the threaded portion is placed within a bone, which stabilizes and supports the function of the tent peg.

Referring to fig. 4 and 5, the blind hole 4 of the tent peg head can firmly fix the barrier membrane to the tent peg by the membrane adapter peg 20. The membrane-fitting stud 20 is a close fit with the blind hole 4.

Referring to fig. 6, 7 and 8, in the dental implant operation, tent nails 10 of different lengths are selected according to the size and shape of the bone supplement, and after the tent nails 10 fix the bone supplement 40 on the alveolar bone 30 of the patient, the collagen membrane 50 is fixed by the membrane adaptation nails 20. Realizing the repair of bone defect. For the horizontal bone deficiency symptoms, the tent nail 10 is arranged at the horizontal deficiency position, for the vertical bone deficiency symptoms, the tent nail is arranged at the vertical deficiency position, for the mixed bone deficiency symptoms, the tent nail 10 is arranged at the horizontal position and the vertical position, the artificial bone or the autologous bone type bone supplementing 40 is fixed, and after the artificial bone or the autologous bone is fixed, the collagen film 50 is fixed through the film adapting nail 20, so that the stability of the implant material and the completion of bone increment are facilitated. The collagen membrane 50 at the undesired site is fixed by the membrane nail 60.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A tent peg, characterized in that: comprises a head part, a body part and a bottom part, wherein the head part is tent-shaped, the head is a hemispherical expansion part with the diameter of 6mm and the height of 2-3 mm; the utility model discloses a self tapping type screw thread, including the body, the threaded structure is set up in the body below, the body is connected in the head below, and the junction is the inversion round platform of big-and-small down, the bottom sets up in body below, the bottom is the helicitic texture, it has the blind hole of cuboid shape just to open on the head the lower part opening of cuboid becomes the taper gradually and forms the bell mouth, the body is smooth cylinder, the bottom screw thread is the self tapping screw thread.

2. The tent peg of claim 1, wherein: the size of the blind hole is 1.2mm multiplied by 2mm, the tolerance range of the size is +/-0.1 mm, and a conical hole is arranged below the blind hole.

3. The tent peg of claim 1, wherein: the diameter of the upper end of the body part is 0.1-0.2mm longer than that of the lower end.

4. The tent peg of claim 1, wherein: the length of the bottom is 3-5mm, and the total length of the body and the bottom is 7-14mm.