CN214285238U

CN214285238U - Special fixture nail for alveolar bone augmentation

Info

Publication number: CN214285238U
Application number: CN202120019924.1U
Authority: CN
Inventors: 邹多宏; 刘小涵; 白果; 杨驰; 张志愿
Original assignee: Shanghai Renjie Industry Co ltd
Current assignee: Shanghai Renjie Industry Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-09-28
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to the technical field of retention nails, in particular to a retention nail special for alveolar bone augmentation, which comprises a retention rod, wherein a thread part is arranged at the contact side of the self-body alveolar bone of the retention rod; one side of the retaining rod, which is far away from the threaded part, is provided with a retaining piece; the diameter of the retention head is gradually reduced from one end far away from the retention rod to one end close to the retention rod; the fixing head is provided with a hollow groove body, and the extending direction of the groove body is consistent with the axial direction of the fixing rod; a partition board is arranged in the groove body and is perpendicular to the extending direction of the groove body, and the groove body is divided into a retention piece accommodating groove and a screwdriver accommodating groove by the partition board; the retention element cooperates with the retention element receiving slot. The retention head part in the retention nail is matched with the opening shape of the alveolar bone defect area, so that bone blocks can be effectively retained, bone powder can be stabilized, retention by using a biological membrane is not needed, the effect is excellent, and formation of new bones is facilitated.

Description

Special fixture nail for alveolar bone augmentation

Technical Field

The utility model relates to the technical field of retention nails, in particular to a retention nail special for alveolar bone augmentation.

Background

At present, dental implantation becomes the preferred repair mode for patients with dental loss, and sufficient bone mass plays an important role in the long-term prognosis effect of dental implantation surgery. However, the clinical results of the soft and hard tissues of the jaw bone are often damaged due to trauma, inflammation, tumor, congenital diseases and physiological factors, which results in insufficient bone mass of the alveolar bone and brings great challenges to dental implantation repair. How to effectively increase the alveolar bone mass, especially the vertical bone mass, is a major clinical problem to be solved urgently by the implanting doctors.

Alveolar bone augmentation has many ways, except for autologous bone transplantation, allogenic bone blocks, artificial bone powder and the like are commonly used clinically at present, and good clinical effects are obtained. Regardless of the bone grafting method chosen, stable retention of the bone mass or powder is required to facilitate new bone formation. However, there is currently a clinical lack of effective bone retention device.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned disadvantages of the prior art, it is an object of the present invention to provide a fixture for alveolar bone increment, which solves the problems of the prior art.

In order to achieve the above and other related objects, the present invention provides a fixture nail for alveolar bone augmentation, comprising a retaining rod, wherein a thread portion is provided on a contact side of the retaining rod with an autologous alveolar bone; a fixing piece is arranged on one side of the fixing rod, which is far away from the threaded part; the diameter of the retention head is gradually reduced from one end far away from the retention rod to one end close to the retention rod; the fixing head is provided with a hollow groove body, and the extending direction of the groove body is consistent with the axial direction of the fixing rod; a partition board is arranged in the groove body and is perpendicular to the extending direction of the groove body, and the groove body is divided into a retention piece accommodating groove and a screwdriver accommodating groove by the partition board; the retention element cooperates with the retention element receiving slot.

In some embodiments of the present invention, the retention element has an external thread, and the retention element receiving groove has an internal thread engaged with the retention element.

In some embodiments of the present invention, the cross-sectional shape of the trough body is square or circular; the retaining piece is square or round which is matched with the shape of the groove body.

In some embodiments of the present invention, the slot is disposed in the center of the cross section of the retention head and extends in the direction of the retention head axis.

In some embodiments of the invention, the baffle bisects the trough.

In some embodiments of the present invention, an angle between a working surface of the thread in the threaded portion and a radial direction of the retention rod is 10 ° to 30 °.

In some embodiments of the present invention, the pitch of the threaded portion is 0.1 to 0.3 mm.

In some embodiments of the present invention, the length of the threaded portion is 3 to 5 mm.

In some embodiments of the present invention, the retention bar has a length of 10-18 mm; the diameter of the retention rod is 1-2 mm.

In some embodiments of the present invention, the retention head has a diameter of 3-5 mm; the thickness of the retention head is 2-4 mm.

In some embodiments of the present invention, the side length of the trough body is 0.5-1 mm; the thickness of the groove body is 2-4 mm.

In some embodiments of the present invention, the thickness of the partition is 0.5-1 mm.

Drawings

FIG. 1 is a schematic view of the split structure of the fixture for alveolar bone augmentation of the present invention.

Fig. 2 is a front view of the fixture for alveolar bone augmentation according to the present invention.

Fig. 3 is a schematic view of a screwdriver receiving slot according to an embodiment of the fixture for alveolar bone augmentation of the present invention.

Element numbers in the figures:

1 Retention rod

11 screw part

12 Retention element

2 retention head

21 trough body

211 retention element receiving groove

212 screwdriver receiving slot

22 partition board

Detailed Description

In the description of the present invention, it should be noted that the structure, ratio, size, etc. shown in the attached drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by the people familiar with the technology, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the ratio relationship or the adjustment of the size should still fall within the range that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that can be achieved. While the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 and 2, the embodiment of the present invention provides an alveolar bone incremental fixture, which includes a fixture rod 1. The self-alveolar bone contact side of the retaining rod 1 is provided with a thread part 11, and the thread part 11 is screwed into the self-alveolar bone when in use. A fixing piece 12 is arranged on one side of the fixing rod 1 far away from the thread part 11; the dental implant fixture is characterized by further comprising a fixing head part 2, wherein the fixing head part 2 is matched with the opening shape of the alveolar bone defect area, and the opening of the alveolar bone defect area is usually gradually reduced towards the direction of the bottom of the alveolar bone, so that the diameter of the fixing head part 2 is gradually reduced from one end far away from the fixing rod 1 to one end close to the fixing rod 1, and thus, an extra biomembrane is not required to be covered. The fixing head 2 is provided with a hollow groove body 21, and the extending direction of the groove body 21 is consistent with the axial direction of the fixing rod 1; a partition plate 22 is arranged in the groove body 21 and perpendicular to the extending direction of the groove body, and divides the groove body 21 into two spaces, specifically, the partition plate 22 divides the groove body 21 into a retaining piece accommodating groove 211 and a screwdriver accommodating groove 212; the retaining piece 12 is matched with the retaining piece accommodating groove 211, when the fixing piece fixing device is used, the retaining piece 12 enters the retaining piece accommodating groove 211, under normal conditions, the outer diameter of the retaining piece 12 is equal to the inner diameter of the retaining piece accommodating groove 211, or the outer diameter of the retaining piece 12 is slightly larger than the inner diameter of the retaining piece accommodating groove 211, so that the retaining piece 12 and the retaining piece accommodating groove 211 can be well fixed when connected, in addition, the thickness of the retaining piece 12 is larger than that of the retaining piece accommodating groove 211, and thus the installation space of self bones or allogeneic bone blocks which are provided with holes can be reserved. Wherein the thickness direction coincides with the axial direction of the retention rod 1. The utility model discloses be convenient for with alveolar bone autologous bone piece and allogeneic bone piece maintenance, can stabilize artifical bone meal simultaneously.

The special device for the bone blocks is placed in a special tool box clinically and is used clinically after being sterilized. The utility model discloses a special retention nail of alveolar bone increase, when using clinically, earlier implant the position pole 1 into autologous alveolar bone with the nail holder earlier, after stabilizing, implant the bone meal or place autologous bone or allogeneic bone piece that has been equipped with the hole in alveolar bone increase bone department in advance, then installation retention head 2, arrange the screwdriver in screwdriver holding tank 212 for on the retention head 2 passes through the retention part 12 of retention part holding tank 211 screw in position pole 1, and then make retention head 2 be connected with position pole 1. After 8 months of operation, the special retention pins are removed.

The utility model provides an among the special fixture of alveolar bone increment, be equipped with the external screw thread on the maintenance piece 12, be equipped with in the maintenance piece holding tank 211 with maintenance piece 12 matched with internal thread, the cooperation of internal and external screw thread can make special nail holder with the maintenance head 2 through the maintenance piece 12 of maintenance piece holding tank 211 screw in maintenance pole 1 on, and then make maintenance head 2 fixed with maintenance pole 1. In one embodiment, the external threads of the retainer 12 have a length of 2-3 mm.

In the fixture for alveolar bone increment provided by the present invention, the shape of the groove body 21 is not limited in general, for example, the cross-sectional shape of the groove body 21 may be square or circular. The retaining element 12 is square or round and is matched with the groove body 21 in shape, namely when the groove body 21 is square, the retaining element 12 is also square.

In the fixture for alveolar bone increment provided by the present invention, the groove body 21 is disposed at the center of the cross section of the retention head 2 and extends along the axis of the retention head 2. Thus, the groove body 21 and the retaining rod 1 are more stable after being fixed by the retaining piece 12.

In the fixture nail special for alveolar bone increment provided by the utility model, the clapboard 22 equally divides the groove body 21.

In the fixture nail special for alveolar bone increment, as shown in fig. 1 and 2, the included angle between the working surface of the thread in the thread part 11 and the radial direction of the retaining rod 1 is 10-30 degrees. Such a design may facilitate the implantation of the retention pin and reduce frictional heat generation.

The utility model provides an among the special fixture of alveolar bone increment, pitch means the interval between the axial direction of adjacent 2 screw threads along maintenance pole 1, and each section pitch of screw thread portion 11 equals. The thread pitch of the thread part 11 is 0.1-0.3 mm. Such a design allows the threaded portion 11 to have a certain squeezing effect on the alveolar bone during screwing, and a desired initial stability is obtained.

In the fixture for alveolar bone increment provided by the present invention, the thread of the thread portion 11 is a self-tapping thread and can be fixed in the alveolar bone.

In the fixture nail special for alveolar bone increment provided by the utility model, the length of the thread part 11 is 3-5 mm. In some embodiments, the length of the threaded portion 11 may also be 3-4 mm; or 4-5 mm.

In the fixture nail special for alveolar bone increment provided by the utility model, the length of the fixing rod 1 can be 10-18 mm; in some embodiments, the length of the retention bar 1 may be, for example, 10-12 mm, 12-14 mm, 14-16 mm, or 16-18 mm. The diameter of the retaining rod 1 is 1-2 mm, 1-1.5 mm, or 1.5-2 mm, etc.

In the retention nail special for alveolar bone increment provided by the utility model, the retention rod 1 is of a smooth structure except the thread part 11 and is used for bone powder release. The length of the section is 3-8 mm.

In the fixture nail special for alveolar bone increment provided by the utility model, the diameter of the fixture head part 2 can be 3-5 mm. In some embodiments, the retention head 2 may also have a diameter of 3-4 mm, or 4-5 mm, etc.

In the fixture nail special for alveolar bone increment provided by the utility model, the thickness of the fixture head part 2 can be 2-4 mm. In some embodiments, the retention head 2 may also have a thickness of 2-3 mm; or 3-4 mm, etc.

In the fixture nail special for alveolar bone increment provided by the utility model, the side length of the groove body 21 can be 0.5-1.5 mm. In some embodiments, the side length of the trough body 21 can also be 0.5-1.0 mm; or 1.0 to 1.5 mm.

In the fixture nail special for alveolar bone increment provided by the utility model, the thickness of the groove body 21 can be 2-4 mm. In some embodiments, the thickness of the groove 21 may also be 2-3 mm; or 3-4 mm, etc.

In the fixture nail special for alveolar bone increment provided by the utility model, the thickness of the baffle plate 22 can be 0.5-1 mm. In some embodiments, the thickness of the partition 22 may also be 0.5 to 0.8 mm; or 0.8 to 1 mm.

In the fixture for alveolar bone increment provided by the present invention, as shown in fig. 3, the screwdriver receiving groove 212 is engaged with a screwdriver, and the screwdriver receiving groove 212 may be a cross-shaped opening corresponding to the cross of the screwdriver in the groove body 21. The size of the cross-shaped opening may be a cross-shaped universal opening with a width of 0.4 mm.

In the fixture nail special for alveolar bone increment provided by the utility model, the fixture nail special for alveolar bone increment is made of titanium alloy.

To sum up, the fixture pin special for alveolar bone increment provided by the embodiment of the utility model has the following advantages:

(1) the umbrella part is enlarged, and the supporting area is larger, thereby reducing the use number of the retention nails.

(2) The retention nail can maintain the space stability of the bone grafting area and improve the effective rate of bone increment.

(3) The diameter of the retention head part 2 in the retention nail is gradually reduced from one end far away from the retention rod 1 to one end close to the retention rod 1, and is matched with the opening shape of the alveolar bone defect area, so that bone blocks can be effectively retained, bone powder can be stabilized, the retention is free from extra use of biomembranes, the effect is excellent, and the formation of new bones is facilitated.

(4) The fixture retaining head opening is a universal cross opening, and can be implanted or removed by using an implanting system screwdriver or a spanner without a special screwdriver or spanner.

To sum up, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The fixture nail special for alveolar bone augmentation is characterized by comprising a fixing rod (1), wherein a thread part (11) is arranged on the contact side of the self-body alveolar bone of the fixing rod (1); a fixing piece (12) is arranged on one side, away from the threaded part (11), of the fixing rod (1); the diameter of the retention head (2) is gradually reduced from one end far away from the retention rod (1) to one end close to the retention rod (1); the retention head (2) is provided with a hollow groove body (21), and the extension direction of the groove body (21) is consistent with the axial direction of the retention rod (1); a partition plate (22) is arranged in the groove body (21) and perpendicular to the extending direction of the groove body, and the groove body (21) is divided into a fixing piece accommodating groove (211) and a screwdriver accommodating groove (212) by the partition plate (22); the retainer (12) is engaged with the retainer receiving groove (211).

2. The fixture for alveolar bone increment according to claim 1, wherein the fixture (12) is externally threaded, and the fixture receiving groove (211) is internally threaded to be engaged with the fixture (12).

3. The fixture for alveolar bone augmentation according to claim 1, wherein the cross-sectional shape of the channel (21) is square or circular; the retaining piece (12) is square or round and is matched with the groove body (21) in shape.

4. The fixture for alveolar bone increment according to claim 1, wherein the groove body (21) is formed at the center of the cross section of the retention head (2) and extends in the axial direction of the retention head (2);

the clapboard (22) equally divides the groove body (21).

5. The fixture for alveolar bone increment according to claim 1, wherein an included angle between a working surface of the thread of the threaded part (11) and a radial direction of the retaining rod (1) is 10 ° to 30 °.

6. The fixture for alveolar bone increment according to claim 1, wherein the thread pitch of the threaded part (11) is 0.1 to 0.3 mm.

7. The fixture for alveolar bone augmentation according to claim 1, wherein the length of the threaded part (11) is 3 to 5 mm.

8. The fixture for alveolar bone augmentation according to claim 1, wherein the length of the retaining rod (1) is 10 to 18 mm; the diameter of the retaining rod (1) is 1-2 mm.

9. The fixture for alveolar bone augmentation according to claim 1, wherein the diameter of the retention head (2) is 3 to 5 mm; the thickness of the retention head (2) is 2-4 mm.

10. The fixture nail special for alveolar bone increment according to claim 1, wherein the side length of the groove body (21) is 0.5-1 mm; the thickness of the groove body (21) is 2-4 mm; the thickness of the partition plate (22) is 0.5-1 mm.