CN214259511U - Special fixture assembly for alveolar bone augmentation - Google Patents

Abstract

The utility model relates to the technical field of medical devices, in particular to a fixture component special for alveolar bone augmentation, which comprises a fixing rod, wherein a thread part is arranged at the contact side of the self-body alveolar bone of the fixing rod; a first retaining piece is arranged on one side of the retaining rod, which is far away from the threaded part; the fixing rod further comprises an umbrella-shaped connecting part, a hollow groove body is arranged on the umbrella-shaped connecting part, 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 tank body and is vertical to the extending direction of the tank body, and the tank body is divided into a first groove and a second groove by the partition board; the first retaining piece is matched with the first groove; the matched nail comprises a cap body part and a second fixing part which are connected; the second retaining member is matched with the second groove. The utility model discloses be used for fixed autologous bone piece and allogeneic bone piece maintenance, also can stabilize artifical bone meal simultaneously to solve among the prior art and can't effectively maintain the problem of stabilizing the bone grafting space.

Description

Special fixture assembly for alveolar bone augmentation

Technical Field

The utility model relates to the technical field of medical devices, in particular to a fixture component special for alveolar bone augmentation.

Background

At present, dental implantation becomes the preferred repair mode for patients with loss, and sufficient bone mass plays an important role in the long-term prognosis effect of dental implantation surgery. However, clinical defects of soft and hard tissues of jawbone caused by trauma, inflammation, tumor resection, congenital diseases and physiological factors lead to serious deficiency of alveolar bone mass, which brings a challenge to dental implant repair. Therefore, how to effectively increase the alveolar bone mass, especially the vertical bone mass, is a major clinical problem to be solved by the implant 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 achieved. Regardless of the bone grafting method chosen, however, stable retention of the bone mass or bone powder is required to facilitate new bone formation. But currently there is a clinical lack of effective retention devices.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, an object of the present invention is to provide a fixture assembly for alveolar bone increment, which is used for fixing the fixture of autologous bone and allogeneic bone, and stabilizing the artificial bone powder, so as to solve the problem in the prior art that the bone grafting space cannot be maintained stably.

In order to achieve the above and other related objects, an aspect of the present invention provides a fixture assembly for alveolar bone augmentation, including a retention rod, a thread portion being provided on a self-alveolar bone contact side of the retention rod; a first retaining piece is arranged on one side, away from the threaded part, of the retaining rod; the fixing rod further comprises an umbrella-shaped connecting part, a hollow groove body is arranged on the umbrella-shaped connecting part, 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 tank body and is perpendicular to the extending direction of the tank body, and the tank body is divided into a first groove and a second groove by the partition board; the first retaining piece is matched with the first groove; the nail matching device further comprises a matching nail, wherein the matching nail comprises a connected cap body part and a second retaining part; the second retaining piece is matched with the second groove.

In some embodiments of the present invention, the first fixing member has an external thread, and the first groove has an internal thread matching with the first fixing member.

In some embodiments of the present invention, the second fixing member has an external thread, and the second groove has an internal thread matching with the second fixing member.

In some embodiments of the present invention, the umbrella-shaped connecting portion has a diameter that gradually increases from the end away from the retaining rod to the end near the retaining rod.

In some embodiments of the present invention, the cross-sectional shape of the trough body is square or circular; the first retaining piece and the second retaining piece are square or round, and the shapes of the first retaining piece and the second retaining piece are matched with those of the groove body.

In some embodiments of the present invention, the groove is formed at the center of the cross section of the umbrella-shaped connecting portion and extends in the axial direction of the umbrella-shaped connecting portion.

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 cap body portion is provided with a slot.

In some embodiments of the present invention, the retention bar has a length of 10-18 mm.

In some embodiments of the present invention, the retention rod has a diameter of 1-2 mm.

In some embodiments of the present invention, the umbrella-shaped connecting portion has a diameter of 3 to 5 mm.

In some embodiments of the present invention, the thickness of the umbrella-shaped connecting portion is 2 to 4 mm.

In some embodiments of the present invention, the side length of the groove body is 0.5-1.5 mm.

In some embodiments of the present invention, the thickness of the groove body is 2 to 4 mm.

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

In some embodiments of the present invention, the diameter of the cap body is 2-3 mm.

In some embodiments of the present invention, the thickness of the cap body is 1.5-2.5 mm.

In some embodiments of the present invention, the length of the fitting nail is 3 to 5 mm.

Drawings

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

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

FIG. 3 is a schematic view illustrating the structure of a groove of the fixture assembly for alveolar bone augmentation according to an embodiment of the present invention.

Element numbers in the figures:

1 Retention rod

11 screw part

12 first retention

2 umbrella-shaped connecting part

21 trough body

211 first recess

212 second recess

22 partition board

3 fitting nail

31 cap body part

311 open slot

32 second retention

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 a fixture assembly for alveolar bone increment, which comprises a retaining rod 1, wherein a thread portion 11 is disposed on an autogenous alveolar bone contact side of the retaining rod 1, and the thread portion 11 can be screwed into an autogenous alveolar bone during use. A first retaining piece 12 is arranged on one side, away from the threaded part 11, of the retaining rod 1; still include umbelliform connecting portion 2, be equipped with hollow cell body 21 on the umbelliform connecting portion 2, the extending direction of cell body 21 is unanimous with retention pole 1 axial direction, and under the normal condition, the extending direction of retention pole 1 is unanimous with the axial direction of retention pole 1. A partition plate 22 is arranged in the tank body 21 and perpendicular to the extending direction of the tank body 21, and divides the tank body 21 into two spaces, specifically, the partition plate 22 divides the tank body 21 into a first groove 211 and a second groove 212; the first retaining element 12 is matched with the first groove 211, when the fixing device is used, the first retaining element 12 enters the first groove 211, and generally, the outer diameter of the first retaining element 12 is equal to the inner diameter of the first groove 211, or the outer diameter of the first retaining element 12 is slightly larger than the inner diameter of the first groove 211, so that the first retaining element 12 and the first groove 211 can be well fixed when being connected. In addition, the thickness of the first retainer 12 is greater than that of the retainer-receiving groove 211, so that a space for installing autologous or allogeneic bone blocks, which have been prepared with holes, can be reserved. Wherein the thickness direction coincides with the axial direction of the retention rod 1. The nail fixing device further comprises a matching nail 3, wherein the matching nail 3 comprises a cap body part 31 and a second retaining piece 32 which are connected; the second retaining element 32 is matched with the second groove 212, when in use, the second retaining element 32 enters the second groove 212, and usually, the outer diameter of the second retaining element 32 is equal to the inner diameter of the second groove 212, or the outer diameter of the second retaining element 32 is slightly larger than the inner diameter of the second groove 212, so that the two elements can be well fixed when being connected.

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 fixture subassembly of alveolar bone increase, when using clinically, earlier implant the position fixing rod 1 into autologous alveolar bone with the nail holder, after stabilizing, implant the bone meal or place autologous bone or allogeneic bone piece that has been equipped with the hole in alveolar bone pre-augmentation bone department, then install umbelliform connecting portion 2, arrange special nail holder in second recess 212 for umbelliform connecting portion 2 is on first position fixing piece 12 through first recess 211 screw in position fixing rod 1, and then make umbelliform connecting portion 2 be connected with position fixing rod 1. Covering the membrane, and finally placing the retention membrane of the auxiliary nail 3, wherein the cap body part 31 of the auxiliary nail 3 is provided with a slot 311. The special nail holder is arranged in the groove, so that the umbrella-shaped connecting part 2 is screwed into the second fixing part 32 of the umbrella-shaped connecting part 2 through the second groove 212, the auxiliary nail 3 is connected with the umbrella-shaped connecting part 2 to fix the membrane, the membrane is usually thin, and the thickness of the second fixing part 22 only needs to be slightly larger than that of the fixing part accommodating groove 211. And after 8 months of operation, removing the special fixture assembly.

The utility model provides an among the special fixture subassembly of alveolar bone increment, as shown in figure 1, be equipped with the external screw thread on the first retaining member 12, be equipped with in the first recess 211 with first retaining member 12 matched with internal thread, the cooperation of internal and external screw thread can make special nail holder with umbelliform connecting portion 2 through first recess 211 screw in retaining rod 1 on first retaining member 12, and then make umbelliform connecting portion 2 fixed with retaining rod 1. In one embodiment, the external threads of the retainer 12 have a length of 2-3 mm.

In the fixture assembly for alveolar bone increment provided by the present invention, as shown in fig. 1, the second retaining member 32 is provided with an external thread, and the second groove 212 is provided with an internal thread matching with the second retaining member 32. The cooperation of internal and external screw thread can make and join in marriage nail 3 and can pass through second recess 212 screw in the second maintenance piece 32 of umbelliform connecting portion 2, and then make and join in marriage nail 3 and be connected with umbelliform connecting portion 2 to realize the fixed of membrane.

In the fixture assembly special for alveolar bone increment provided by the utility model, the diameter of the umbrella-shaped connecting part 2 is gradually increased from one end away from the retaining rod 1 to one end close to the retaining rod 1. The contact area with the pre-implanted autologous bone or allogeneic bone block is larger, and the supporting area is larger, thereby reducing the use number of the fixture components special for alveolar bone augmentation.

In the fixture assembly for alveolar bone increment according to the present invention, the shape of the channel 21 is not limited, for example, the cross-sectional shape of the channel 21 may be square or circular. The first retaining element 12 and the second retaining element 32 are square or round and are matched with the shape of the slot body 21, that is, when the slot body 21 is square, the first retaining element 12 and the second retaining element 32 are also square.

In the fixture assembly for alveolar bone increment provided by the utility model, the groove body 21 is arranged at the center of the cross section of the umbrella-shaped connecting part 2 and extends along the axis direction of the umbrella-shaped connecting part 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 assembly special for alveolar bone increment provided by the utility model, the partition plate 22 equally divides the groove body 21.

The utility model provides an among the special fixture subassembly of alveolar bone increment, contained angle between the working face of screw thread and the radial direction of retaining rod 1 is 10 ~ 30 in the screw thread portion 11. Such a design may facilitate implantation of the fixture assembly and reduce frictional heat generation.

The utility model provides an among the special fixture subassembly 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 assembly 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 assembly 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.

The utility model provides a special fixture subassembly of alveolar bone increment, the retaining rod 1 is a smooth structure except for the screw thread portion 11 for put the bone meal. The length of the section is 3-8 mm.

In the fixture assembly special for alveolar bone increment provided by the utility model, the diameter of the umbrella-shaped connecting part 2 can be 3-5 mm. In some embodiments, the diameter of the umbrella-shaped connecting portion 2 may also be 3-4 mm, or 4-5 mm, etc.

In the fixture assembly special for alveolar bone increment provided by the utility model, the thickness of the umbrella-shaped connecting part 2 can be 2-4 mm. In some embodiments, the thickness of the umbrella-shaped connecting part 2 can be 2-3 mm; or 3-4 mm, etc.

The utility model provides an among the special fixture subassembly of alveolar bone increment, the length of side of cell 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 assembly 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 assembly for alveolar bone increment provided by the present invention, the thickness of the partition 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 assembly for alveolar bone increment provided by the present invention, the diameter of the cap body 31 may be 2-3 mm. In some embodiments, the cap body 31 may also have a diameter of 2-2.5 mm; or 2.5 to 3 mm.

In the fixture assembly for alveolar bone increment provided by the present invention, the thickness of the cap body 31 may be 1.5-2.5 mm. In some embodiments, the thickness of the cap body 31 may also be 1.5-2.0 mm; or 2.0 to 2.5 mm.

The utility model provides an among the special fixture subassembly of alveolar bone increment, the length of joining in marriage nail 3 can be 3 ~ 5 mm. In some embodiments, the length of the fitting nail 3 can also be 3-4 mm; or 4-5 mm.

In the fixture assembly for alveolar bone increment provided by the present invention, as shown in fig. 3, the slot 311 of the cap body 31 is located at the end away from the umbrella-shaped connecting portion 2 and is matched with the special fixture.

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

The utility model discloses an among the special fixture subassembly of alveolar bone increment, implant autologous alveolar bone with the nail holder earlier 1 the position pole, after stable, implant the bone meal or place the autologous bone or the allogeneic bone piece that have been equipped with the hole, then install umbelliform connecting portion 2, on the position pole 1 is fixed to 2 screw ins of umbelliform connecting portion with special nail holder, the epiphragma is placed at last and is joined in marriage 3 position membranes of nail. The utility model discloses a special fixture subassembly of alveolar bone increase can be used for autologous bone piece and allogeneic bone piece maintenance, also can stabilize artifical bone meal simultaneously.

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

(1) the umbrella part is expanded, and the supporting area is larger, thereby reducing the use number of the fixture components.

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

(3) The fixture assembly can effectively retain bone block, stabilize bone powder and retain biomembrane, has excellent effect and is beneficial to the formation of new bone.

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 (10)

1. The fixture component special for alveolar bone augmentation is characterized by comprising a retaining rod (1), wherein a thread part (11) is arranged on the contact side of the self-body alveolar bone of the retaining rod (1); a first fixing piece (12) is arranged on one side, away from the threaded part (11), of the fixing rod (1); the fixing rod is characterized by further comprising an umbrella-shaped connecting part (2), wherein a hollow groove body (21) is arranged on the umbrella-shaped connecting part (2), 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 tank body (21) and perpendicular to the extending direction of the tank body, and the tank body (21) is divided into a first groove (211) and a second groove (212) by the partition plate (22); the first retaining piece (12) is matched with the first groove (211); the nail (3) comprises a cap body part (31) and a second retaining piece (32) which are connected; the second retention element (32) cooperates with the second groove (212).

2. The fixture assembly as claimed in claim 1, wherein the first fixture (12) is provided with an external thread, and the first recess (211) is provided with an internal thread for engaging with the first fixture (12).

3. The fixture assembly as claimed in claim 1, wherein the second fixture (32) has external threads, and the second recess (212) has internal threads for engaging with the second fixture (32).

4. The alveolar bone increment specific fixture assembly according to claim 1, wherein the umbrella-shaped coupling part (2) has a diameter gradually increasing from an end distant from the rod (1) to an end close to the rod (1).

5. The fixture assembly for alveolar bone augmentation according to claim 1, wherein the cross-sectional shape of the channel (21) is square or circular; the first retaining piece (12) and the second retaining piece (32) are square or round, and the shapes of the first retaining piece and the second retaining piece are matched with those of the groove body (21).

6. The fixture assembly for alveolar bone increment according to claim 1, wherein the groove body (21) is formed at the center of the cross section of the umbrella-shaped connecting part (2) and extends in the axial direction of the umbrella-shaped connecting part (2); the clapboard (22) equally divides the groove body (21).

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

8. The fixture assembly for alveolar bone increment according to claim 1, wherein the thread part (11) has a pitch of 0.1 to 0.3 mm; the length of the thread part (11) is 3-5 mm.

9. The alveolar bone incremental special fixture assembly according to claim 1, wherein the cap body (31) is provided with a slot (311).

10. The fixture assembly for alveolar bone augmentation according to claim 1, wherein the length of the retention rod (1) is 10 to 18 mm;

and/or the diameter of the retaining rod (1) is 1-2 mm;

and/or the diameter of the umbrella-shaped connecting part (2) is 3-5 mm;

and/or the thickness of the umbrella-shaped connecting part (2) is 2-4 mm;

and/or the side length of the groove body (21) is 0.5-1.5 mm;

and/or the thickness of the groove body (21) is 2-4 mm;

and/or the thickness of the clapboard (22) is 0.5-1 mm;

and/or the diameter of the cap body part (31) is 2-3 mm;

and/or the thickness of the cap body part (31) is 1.5-2.5 mm;

and/or the length of the fitting nail (3) is 3-5 mm.

Images