阅读说明：本技术 一种牙种植体折断基台中央螺丝取出辅助装置 (Auxiliary device for taking out central screw of dental implant broken abutment ) 是由 张文涛 杨帆 于 2021-09-06 设计创作，主要内容包括：本发明公开了一种牙种植体折断基台中央螺丝取出辅助装置。包括：一对U型夹；第一圆筒和第二圆筒,其分别水平纵向设置在所述U型夹的上端,在所述第一圆筒和第二圆筒的中部均布设有多个径向设置的水平角度调节孔；第一水平支撑杆和第二水平支撑杆,其分别与所述第一圆筒和第二圆筒同轴设置,第一水平支撑杆和第二水平支撑杆的外周分别与第一圆筒和第二圆筒的内周相匹配,基部上设有弹簧销；纵梁两端与所述第一水平支撑杆和第二水平支撑杆可拆卸连接,在所述纵梁的中部设有筒状体。本发明的有益效果是：既能够实现多角度调节适用于不同位置和角度的种植体,又能够稳固和限定专用钻头的方向,使专用钻头在切割过程中与折断的基台中央螺丝保持同轴。(The invention discloses an auxiliary device for taking out a central screw of a dental implant fracture abutment. The method comprises the following steps: a pair of U-shaped clips; the first cylinder and the second cylinder are respectively horizontally and longitudinally arranged at the upper end of the U-shaped clamp, and a plurality of radially arranged horizontal angle adjusting holes are uniformly distributed in the middle of the first cylinder and the second cylinder; the first horizontal support rod and the second horizontal support rod are respectively and coaxially arranged with the first cylinder and the second cylinder, the outer peripheries of the first horizontal support rod and the second horizontal support rod are respectively matched with the inner peripheries of the first cylinder and the second cylinder, and the base parts are provided with spring pins; the two ends of the longitudinal beam are detachably connected with the first horizontal supporting rod and the second horizontal supporting rod, and a cylindrical body is arranged in the middle of the longitudinal beam. The invention has the beneficial effects that: the multi-angle adjustment of the special drill bit can be realized, the special drill bit is suitable for implants at different positions and angles, and the direction of the special drill bit can be stabilized and limited, so that the special drill bit and the broken central screw of the base table are coaxial in the cutting process.)

1. The utility model provides a tooth implant rupture base station central screw takes out auxiliary device which characterized in that includes:

a pair of U-shaped clamps for clamping the teeth on both sides of the implant respectively;

the first cylinder and the second cylinder are respectively horizontally and longitudinally arranged at the upper end of the U-shaped clamp, and a plurality of radially arranged horizontal angle adjusting holes are uniformly distributed in the middle of the first cylinder and the second cylinder;

the first horizontal support rod and the second horizontal support rod are respectively and coaxially arranged with the first cylinder and the second cylinder, the outer peripheries of the first horizontal support rod and the second horizontal support rod are respectively matched with the inner peripheries of the first cylinder and the second cylinder, spring pins are arranged on the base parts of the first horizontal support rod and the second horizontal support rod, and the spring pins can be selectively matched with the plurality of horizontal angle adjusting holes and are used for adjusting the horizontal deflection angle; and

the two ends of the longitudinal beam are respectively detachably connected with the first horizontal supporting rod and the second horizontal supporting rod, and a cylindrical body is arranged in the middle of the longitudinal beam;

wherein, the inner periphery of the cylindrical body is matched with the expansion part of the self-tapping screw of the base.

2. The dental implant fracture abutment central screw extraction aid of claim 1, further comprising:

the first cross beam and the second cross beam are respectively arranged in an orthogonal mode with the first horizontal supporting rod and the second horizontal supporting rod, the middle parts of the first cross beam and the second cross beam are respectively connected with the free ends of the first horizontal supporting rod and the second horizontal supporting rod, and the first cross beam and the second cross beam are provided with transverse grooves for adjusting the horizontal deviation position of the cylindrical body;

the mounting holes are respectively arranged at two ends of the longitudinal beam;

and the bolts sequentially penetrate through the mounting holes and the grooves and are used for detachably connecting the longitudinal beam with the first cross beam and the second cross beam respectively.

3. The dental implant fracture abutment central screw extraction aid of claim 1 or 2, wherein: the longitudinal beam is arc-shaped.

4. The device for assisting in removing a center screw of a dental implant fracture abutment according to claim 2, wherein: the mounting hole is a strip-shaped hole.

5. The dental implant fracture abutment central screw extraction aid of claim 1 or 2, further comprising:

the spherical annular joint seat is arranged in the middle of the longitudinal beam, a spherical annular groove is formed in the spherical annular joint seat, and a lateral hole is formed in the upper part of the spherical annular joint seat;

the spherical ring joint is arranged on the outer wall of the upper end of the cylindrical body, is clamped in the spherical ring groove, and is provided with a gap; and

and the locking screw passes through the lateral hole and is locked with the spherical annular joint, and is used for locking the relative position of the spherical annular joint and the spherical annular groove.

6. The dental implant fracture abutment central screw extraction aid of claim 1 or 2, wherein the U-clamp comprises:

the upper ends of the first clamping piece and the second clamping piece are provided with buckling parts which are matched with each other, and the lower ends of the first clamping piece and the second clamping piece are respectively provided with a clamping part;

the screw hole is arranged on the buckling part of the second clamping piece in a penetrating way;

and the bolt penetrates through the screw hole and is matched with the screw hole, the base part is rotatably arranged on the buckling part of the first clamping piece, and a square end block is arranged at the free end of the bolt.

7. The device for assisting in removing a central screw of a dental implant fracture abutment according to claim 6, wherein: impression materials are arranged inside the U-shaped clamp and used for bonding the U-shaped clamp with teeth.

8. The dental implant fracture abutment central screw extraction aid of claim 7, wherein: the clamping part is provided with a plurality of through overflow holes for overflowing redundant impression materials.

Technical Field

The invention relates to the field of medical instruments, in particular to an auxiliary device for taking out a central screw of a dental implant broken abutment.

Background

With the continuous improvement of implant surface treatment technology, the success rate of dental implants has gradually increased. At present, the retention rate in the mouth after 10 years of dental implant restoration can reach more than 95%. However, as the age of the dental implant increases, some mechanical complications also increase. The breakage of the implant abutment or the central screw of the abutment is one of the most common mechanical complications.

The oral implant in the prior art comprises an intraosseous implant body, an artificial tooth connected with an abutment and an oral cavity, wherein the artificial tooth needs to be connected with the implant body through the abutment, the abutment is connected and fixed with the implant body through a central screw, and once the central screw of the abutment is broken, the dental crown of the implant is loosened together with the abutment, so that the dental implant cannot perform functions. The broken central screw and the abutment should be taken out and repaired again. If the broken central screw of the abutment cannot be taken out successfully, the implant cannot be restored again, and the implant can only be taken out and re-implanted after the bone is healed.

The method for taking out the center screw of the abutment, which is commonly used clinically, comprises the steps of cutting the center screw of the broken abutment by using a high-speed mobile phone and a special drill, then cutting threads by using a tapping drill to connect the center screw of the broken abutment in the implant, and further removing the center screw of the broken abutment. In the process of cutting by using a high-speed mobile phone, a special drill bit needs to be kept coaxial with a broken central screw of an abutment, if the special drill bit is easy to be eccentric by simply depending on the hand feeling of a doctor, a device capable of limiting the direction of the special drill bit is needed, but because the implantation position and the implantation angle of a dental implant are different, a fixing device with a single angle cannot be suitable for implanting teeth with different angles.

Therefore, the auxiliary device for taking out the broken abutment of the dental implant, which can realize multi-angle adjustment and can keep the special drill coaxial with the broken central screw of the abutment in the cutting process, becomes the key for solving the problem.

Disclosure of Invention

The invention aims to provide an auxiliary device for taking out a central screw of a dental implant broken abutment, which is provided with a U-shaped clamp, a first cylinder, a second cylinder, a first horizontal supporting rod, a second horizontal supporting rod, a longitudinal beam and a cylindrical body, and can realize multi-angle adjustment and keep tapping coaxial with the abutment in the cutting process.

In order to achieve the purpose, the invention adopts the following technical scheme that:

a pair of U-shaped clamps for clamping the teeth on both sides of the dental implant, respectively;

the first cylinder and the second cylinder are respectively horizontally and longitudinally arranged at the upper end of the U-shaped clamp, and a plurality of radially arranged horizontal angle adjusting holes are uniformly distributed in the middle of the first cylinder and the second cylinder;

the first horizontal support rod and the second horizontal support rod are respectively and coaxially arranged with the first cylinder and the second cylinder, the outer peripheries of the first horizontal support rod and the second horizontal support rod are respectively matched with the inner peripheries of the first cylinder and the second cylinder, spring pins are arranged on the base parts of the first horizontal support rod and the second horizontal support rod, and the spring pins can be selectively matched with the plurality of horizontal angle adjusting holes and are used for adjusting the horizontal deflection angle;

the two ends of the longitudinal beam are respectively detachably connected with the first horizontal supporting rod and the second horizontal supporting rod, and a cylindrical body is arranged in the middle of the longitudinal beam;

wherein, the inner periphery of the cylindrical body is matched with the expansion part of the self-tapping screw of the base.

Preferably, the method further comprises the following steps:

the first cross beam and the second cross beam are respectively arranged in an orthogonal mode with the first horizontal supporting rod and the second horizontal supporting rod, the middle parts of the first cross beam and the second cross beam are respectively connected with the free ends of the first horizontal supporting rod and the second horizontal supporting rod, and the first cross beam and the second cross beam are provided with transverse grooves for adjusting the horizontal deviation position of the cylindrical body;

the mounting holes are respectively arranged at two ends of the longitudinal beam;

and the bolts sequentially penetrate through the mounting holes and the grooves and are used for detachably connecting the longitudinal beam with the first cross beam and the second cross beam respectively.

Preferably, the longitudinal beam is circular arc-shaped.

Preferably, the mounting hole is a strip-shaped hole.

Preferably, the method further comprises the following steps:

the spherical annular joint seat is arranged in the middle of the longitudinal beam, a spherical annular groove is formed in the spherical annular joint seat, and a lateral hole is formed in the upper part of the spherical annular joint seat;

the spherical ring joint is arranged on the outer wall of the upper end of the cylindrical body, is clamped in the spherical ring groove, and is provided with a gap; and

and the locking screw passes through the lateral hole and is locked with the spherical annular joint, and is used for locking the relative position of the spherical annular joint and the spherical annular groove.

Preferably, the U-shaped clip includes:

the upper ends of the first clamping piece and the second clamping piece are provided with buckling parts which are matched with each other, and the lower ends of the first clamping piece and the second clamping piece are respectively provided with a clamping part;

the screw hole is arranged on the buckling part of the second clamping piece in a penetrating way;

and the bolt penetrates through the screw hole and is matched with the screw hole, the base part is rotatably arranged on the buckling part of the first clamping piece, and a square end block is arranged at the free end of the bolt.

Preferably, an impression material is provided inside the clevis for fixing the clevis to the teeth.

Preferably, the holding portion is provided with a plurality of through-holes for allowing excess impression material to flow out.

The invention has the beneficial effects that: the multi-angle adjustment of the special drill bit can be realized, the special drill bit is suitable for implants at different positions and angles, and the direction of the special drill bit can be stabilized and limited, so that the special drill bit and the broken central screw of the base table are coaxial in the cutting process.

Drawings

FIG. 1 is a perspective view of the auxiliary device for removing the central screw of a dental implant fracture abutment of the present invention.

FIG. 2 is a top view of the device for assisting in removing a central screw from a fractured abutment of a dental implant according to the present invention.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a sectional view B-B of fig. 2.

Detailed Description

The invention is described in further detail below with reference to the drawings so that those skilled in the art can practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

As shown in fig. 1 to 4, in one implementation form of the present invention, to achieve the above object, the present invention adopts the following technical solutions, including:

a pair of U-shaped clamps 110 for clamping to teeth on both sides of the dental implant, respectively; preferably, the clevis 110 includes: the upper ends of the first clamping piece 111 and the second clamping piece 112 are respectively provided with a buckling part 111a and a buckling part 112a which are matched with each other, the lower ends of the first clamping piece 111 and the second clamping piece 112 are respectively provided with a clamping part 111b and a clamping part 112b, and the clamping parts 111b and 112b are matched with the radian of the outer contour of the dental arch; a screw hole 113 is arranged on the buckling part 112a of the second clamping piece 112 in a penetrating way; a bolt 114 is inserted into and fitted to the screw hole 113, a base portion of the bolt 114 is rotatably provided to the engaging portion 111a of the first clamping member 111, and a square end block 115 is provided at a free end of the bolt 114. More preferably, an impression material is provided inside the hairpin to fix the hairpin to the teeth, and the clamping portion is provided with a plurality of through-holes 116 through which excess impression material is allowed to flow out.

The first cylinder 121 and the second cylinder 122 are respectively horizontally and longitudinally arranged at the upper end of the U-shaped clamp 110, and a plurality of radially arranged horizontal angle adjusting holes 121a and horizontal angle adjusting holes 122a are uniformly distributed in the middle of the first cylinder 121 and the second cylinder 122. The first horizontal support rod 123 and the second horizontal support rod 124 are respectively arranged coaxially with the first cylinder 121 and the second cylinder 122, the outer peripheries of the first horizontal support rod 123 and the second horizontal support rod 124 are respectively matched with the inner peripheries of the first cylinder 121 and the second cylinder 122, a spring pin 123a and a spring pin 124a are arranged on the base parts of the first horizontal support rod 123 and the second horizontal support rod 124, and the spring pin 123a and the spring pin 124a can be selectively matched with the plurality of horizontal angle adjusting holes 121a and the horizontal angle adjusting holes 122a to adjust the horizontal deflection angle. Preferably, the number of the plurality of horizontal angle adjusting holes 121a and the number of the horizontal angle adjusting holes 122a are 16, respectively. More preferably, the angle formed by the hole axes of the adjacent horizontal angle adjusting holes 121a or 122a is 5 degrees.

The two ends of the longitudinal beam 130 are detachably connected with the first horizontal support rod 123 and the second horizontal support rod 124 respectively, and a cylindrical body 131 is arranged in the middle of the longitudinal beam. As a preference, further comprising: a first beam 125 and a second beam 126, which are respectively orthogonal to the first horizontal support rod 123 and the second horizontal support rod 124, the middle parts of the first beam 125 and the second beam 126 are respectively connected with the free ends of the first horizontal support rod 123 and the second horizontal support rod 124, and the first beam 125 and the second beam 126 are provided with a transverse slot 125a and a transverse slot 126a for adjusting the horizontal offset position of the cylindrical body 131; mounting holes 132 are respectively provided at both ends of the longitudinal beam 130; bolts 140, which in turn pass through the mounting holes 132 and slots 125 a/126 a, are used to detachably connect the longitudinal beam 130 with the first and second cross beams 125, 126, respectively. More preferably, the longitudinal beam 130 has a circular arc shape, and the mounting hole 132 is a strip-shaped hole. The inner periphery of the cylindrical body 131 is matched with an enlarged portion of a tapping screw of a base.

In the using process, the U-shaped clamp 110 is fixed on teeth on two sides of a dental implant, then the U-shaped clamp 123a can be matched with the horizontal angle adjusting hole 121a selectively, the spring pin 124a can be matched with the horizontal angle adjusting holes 122a selectively to adjust the horizontal deflection angle of the longitudinal beam 130, so that the cylindrical body 131 arranged in the middle of the longitudinal beam 130 is coaxial with the broken abutment central screw, then the special drill bit is inserted into the cylindrical body 131, the expanded part of the special drill bit is matched with the inner periphery of the cylindrical body 131, then the special drill bit is driven to rotate by a rapid mobile phone, a groove is drilled on the broken abutment central screw, then the tapping drill is inserted into the groove and is used for carrying out forced tapping in the anticlockwise direction by a torque wrench, and after being clamped, the tapping drill and the broken abutment central screw are rotated in the anticlockwise direction and taken out.

In another embodiment, the method further comprises: a first beam 125 and a second beam 126, which are respectively orthogonal to the first horizontal support rod 123 and the second horizontal support rod 124, the middle parts of the first beam 125 and the second beam 126 are respectively connected with the free ends of the first horizontal support rod 123 and the second horizontal support rod 124, and the first beam 125 and the second beam 126 are provided with a transverse slot 125a and a transverse slot 126a for adjusting the horizontal offset position of the cylindrical body 131; mounting holes 132 are respectively provided at both ends of the longitudinal beam 130; bolts 140, which in turn pass through the mounting holes 132 and slots 125 a/126 a, are used to detachably connect the longitudinal beam 130 with the first and second cross beams 125, 126, respectively.

In another embodiment, the stringers 130 are rounded.

In another embodiment, the mounting hole 132 is a strip-shaped hole.

In another embodiment, the method further comprises: a spherical annular joint seat 151 arranged in the middle of the longitudinal beam, wherein a spherical annular groove is arranged in the spherical joint seat, and a lateral hole is arranged at the upper part of the spherical annular joint seat 151; a spherical annular joint 152 provided on an outer wall of an upper end of the cylindrical body 131, the spherical annular joint being engaged with the spherical annular groove, a gap being provided between the spherical annular joint and the spherical annular groove; and a locking screw 153 which passes through the lateral hole and is locked with the spherical annular joint for locking the relative position of the spherical annular joint and the spherical annular groove. The angle of the cylindrical body 131 can be finely adjusted by the spherical annular joint seat 151 and the spherical annular joint 152.

In another embodiment, the clevis includes: the upper ends of the first clamping piece 111 and the second clamping piece 112 are respectively provided with a buckling part 111a and a buckling part 112a which are matched with each other, and the lower ends of the first clamping piece 111 and the second clamping piece 112 are respectively provided with a clamping part 111b and a clamping part 112 b; a screw hole 113 is arranged on the buckling part 112a of the second clamping piece 112 in a penetrating way; a bolt 114 is inserted into and fitted to the screw hole 113, a base portion of the bolt 114 is rotatably provided to the engaging portion 111a of the first clamping member 111, and a square end block 115 is provided at a free end of the bolt 114. Preferably, the base of the bolt 114 is inserted into an insertion hole of the engagement portion 111a, the base of the bolt 114 is rotatably provided in the insertion hole via a bearing 117, and a stopper 118 is provided at an opening end of the insertion hole. .

In another embodiment, an impression material is provided inside the clevis 110 for bonding the clevis to teeth.

In another embodiment, a plurality of through-holes 116 are provided in the clamping portion 111b and the clamping portion 112b for allowing excess impression material to overflow.

In conclusion, the auxiliary device 1 for taking out the central screw of the broken abutment of the dental implant can realize multi-angle adjustment and is suitable for implants at different positions and angles, and can stabilize and limit the direction of the special drill bit, so that the special drill bit and the central screw of the broken abutment are coaxial in the cutting process.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.