CN217853391U - Oral implant repair screw and removal tool - Google Patents
Oral implant repair screw and removal tool Download PDFInfo
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- CN217853391U CN217853391U CN202221311116.3U CN202221311116U CN217853391U CN 217853391 U CN217853391 U CN 217853391U CN 202221311116 U CN202221311116 U CN 202221311116U CN 217853391 U CN217853391 U CN 217853391U
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Abstract
The utility model discloses an oral implantation restores screw, include: a head portion; the rod part is arranged at the bottom of the head part, the outer side wall of the rod part is provided with at least two first grooves, and the first grooves are distributed at intervals along the circumferential direction of the rod part. The utility model discloses an oral planting restores screw when taking out remaining pole portion, need not to carry out secondary operation to pole portion, avoids damaging planting body and base station, reduces the injury that causes the patient. The utility model also discloses an instrument of taking out, include: a connecting handle; the clamping head is connected to the bottom of the connecting handle, clamping blocks are arranged at the bottom of the clamping head and located on the outer edge of the clamping head, at least two clamping blocks are arranged, and the clamping blocks are distributed at intervals along the circumferential direction of the clamping head. The utility model discloses a take out instrument, a plurality of clamp splice drive remain pole portion and rotate, make remaining pole portion twist out from the screw of planting body. The utility model discloses can be applied to in the implant field.
Description
Technical Field
The utility model relates to a plant the tooth field, in particular to oral implantation restores screw and takes out instrument.
Background
The surgical procedure for implanting and repairing the oral cavity comprises the following steps: the implant is implanted into an alveolar bone of a tooth lacking part of a patient, after the implant is stabilized, the abutment is locked to the implant through a central screw, and finally, the prosthetic tooth is installed on the abutment. The central screw is screwed into the screw hole of the implant, and if the central screw is broken and fails, a doctor needs to take out the broken central screw from the screw hole of the implant. At present, the method for taking out the broken and failed central screw comprises the following steps: firstly, drilling a threaded hole in the residual central screw, then screwing a taking-out screw into the threaded hole of the central screw, and finally driving the central screw to rotate through the screw so as to take out the central screw. However, the existing method for removing the broken and failed central screw requires secondary processing of the central screw, which risks damaging the implant and the abutment and may cause injury to the patient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an oral implantation restores screw and takes out instrument to solve one or more technical problem that exist among the prior art, provide a profitable selection or creation condition at least.
The technical scheme adopted for solving the technical problems is as follows:
an oral implant restoration screw comprising:
a head portion;
the outer side wall of the rod part is provided with first grooves extending in the vertical direction, the first grooves penetrate the top of the rod part upwards, the number of the first grooves is at least two, the first grooves are distributed at intervals along the circumferential direction of the rod part, and the outer side wall of the rod part is further provided with external threads.
The utility model has the advantages that: if the screw is broken and failed in the implant, namely the head part is separated from the rod part or the rod part is broken, the head part can be taken out by unscrewing the head part, and the residual external threads of the rod part are in threaded connection with the screw hole of the implant; because remaining pole portion lateral wall is equipped with two at least first recesses, and first recess upwards link up, then the first recess of remaining pole portion upwards link up, utilize tools such as tweezers, make two clamping bars of clamping tool stretch into two first recesses from the top of pole portion, clamping tool presss from both sides tight pole portion and rotatory pole portion, make the external screw thread of pole portion unscrew from the screw of implant, and then take out remaining pole portion, need not to carry out secondary operation to pole portion, avoid damaging implant and base station, reduce the injury that causes the patient.
As a further improvement of the above technical solution, the outer side wall of the head portion is provided with second grooves extending in the up-down direction, the second grooves extend upward through the top of the head portion, the number of the second grooves is at least two, and the second grooves are distributed at intervals along the circumferential direction of the head portion.
If the head of the screw is broken or the inner hole of the head is worn, so that the screw cannot be screwed out, because the outer side wall of the head is provided with the plurality of second grooves, and the second grooves upwards penetrate through the head, two clamping rods of the clamping tool extend into the two second grooves from the upper part of the head by utilizing the clamping tool such as tweezers and the like, the head is clamped by the clamping tool and the head is rotated, the external thread of the rod part is unscrewed from the screw hole of the implant, so that the screw can be conveniently taken out, secondary processing is not needed to be carried out on the head, the implant and the base station are prevented from being damaged, and the injury to a patient is reduced.
As a further improvement of the above technical solution, the second groove penetrates downward through the bottom of the head.
The second groove penetrates through the bottom of the head part downwards, the length of the second groove is prolonged, the length of the clamping rod of the clamping tool extending into the second groove is increased, and the clamping rod is prevented from being separated from the second groove.
As a further improvement of the technical scheme, the bottom ends of the second grooves are communicated with the top ends of the first grooves in a one-to-one opposite mode.
The bottoms of the second grooves are communicated with the top ends of the first grooves one by one, and the clamping rod of the clamping tool can penetrate through the second grooves to extend into the first grooves, so that the clamping tool is more labor-saving in unscrewing the screws.
As a further improvement of the above technical solution, a plurality of the first grooves are disposed rotationally symmetrically around the axis of the rod portion.
A plurality of first recesses set up around the axis rotational symmetry of pole portion, when utilizing clamping tool to press from both sides tight pole portion, only need make a plurality of clamping bars aim at a plurality of first recesses and can insert, also can accurately insert behind the rotation angle rotational clamping tool according to rotational symmetry for clamping tool and the cooperation of pole portion are more convenient.
As a further improvement of the above technical solution, the first groove penetrates downward through the bottom of the rod portion.
The first groove penetrates through the bottom of the rod part, the length of the first groove is prolonged, the length of the clamping rod of the clamping tool extending into the first groove is increased, and the clamping rod is prevented from being separated from the first groove.
As a further improvement of the technical scheme, the oral implant restoration screw further comprises a locknut, and the locknut is in threaded connection with the rod part.
Before screwing the screw into the screw hole of the implant, the check nut is placed on the top of the screw hole of the implant, the bottom of the base station is abutted to the check nut, the rod part of the screw penetrates through the check nut and is screwed into the screw hole of the implant, and after the screw and the check nut are locked, a larger friction force is formed between the thread of the check nut and the external thread of the screw so as to achieve the anti-loosening effect.
An extraction tool, comprising:
a connecting handle;
the clamping head is connected to the bottom of the connecting handle, clamping blocks extending downwards are arranged at the bottom of the clamping head and located on the outer edge of the clamping head, the number of the clamping blocks is at least two, and the clamping blocks are distributed at intervals along the circumferential direction of the clamping head.
The connecting handle of the taking-out tool is used for connecting a rotating tool such as an electric drill, the chuck penetrates through the implant and the base station and abuts against the top of the screw residual rod portion, the clamping blocks are inserted into the first grooves in the outer side wall of the rod portion, the connecting handle is rotated to drive the chuck to rotate, the clamping blocks drive the residual rod portion to rotate, and the residual rod portion is screwed out of a screw hole of the implant.
Drawings
The present invention will be further explained with reference to the drawings and examples;
fig. 1 is a schematic structural view of an embodiment of an oral implant restoration screw provided by the present invention;
fig. 2 is a schematic cross-sectional view of an embodiment of the dental implant restoration screw according to the present invention;
fig. 3 is a schematic cross-sectional view of an implant according to an embodiment of the dental implant prosthetic screw provided by the present invention;
FIG. 4 is a schematic view of an embodiment of a removal tool provided by the present invention;
fig. 5 is a schematic cross-sectional view of an oral implant restoration screw and a removal tool according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of an embodiment of the dental implant restoration screw and removal tool of the present invention, showing a longer residual rod portion;
fig. 7 is a schematic cross-sectional view of a dental implant restoration screw and a removal tool according to an embodiment of the present invention, showing a short residual rod portion.
10. The fixture comprises an implant, 11, screw holes, 12, mounting holes, 20, a base table, 21, an assembly hole, 100, a head, 110, a second groove, 200, a rod, 210, a first groove, 220, external threads, 300, a locknut, 400, a connecting handle, 500, a clamping head, 510 and a clamping block.
Detailed Description
This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality of" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1 to 2, the dental implant restoration screw of the present invention comprises the following embodiments:
the dental implant restoration screw comprises a head 100 and a shaft 200.
The head 100 is a cylinder, a hexagon socket extending downward is disposed at the top of the head 100, two second grooves 110 are disposed on the outer side wall of the head 100, the two second grooves 110 are symmetrically distributed around the axis of the head 100, and each second groove 110 penetrates through the top and the bottom of the head 100 in the up-down direction.
The rod part 200 is arranged at the bottom of the head part 100, the rod part 200 is a cylinder, and the axis of the rod part 200 and the axis of the head part 100 are positioned on the same vertical line. The lateral wall of pole portion 200 is equipped with external screw thread 220, and the lateral wall of pole portion 200 still is equipped with two first recesses 210, and two first recesses 210 use the axis of pole portion 200 as central symmetry and distribute, and every first recess 210 link up the top and the bottom of pole portion 200 along upper and lower direction, and the bottom of two second recesses 110 is just to the intercommunication one by one with the top of two first recesses 210.
Referring to fig. 3, the following embodiments are made after the oral implant restoration screw, the implant 10 and the base station 20 of the present invention are installed:
the top of the implant 10 is provided with a mounting hole 12 extending downwards, the bottom wall of the mounting hole 12 is provided with a screw hole 11 extending downwards, and the screw hole 11 is matched with the external thread 220 of the rod part 200.
The dental implant restoration screw further comprises a locknut 300, the locknut 300 is provided with a 30-degree wedge surface at the top end of the traditional 60-degree tooth point, and the structure enables the external thread 220 of the rod part 200 to obtain larger friction force between threads compared with the traditional threads after being screwed with the locknut 300, so that the anti-loose effect is achieved.
In some embodiments, if the number of the first grooves 210 is greater than two, the plurality of first grooves 210 are distributed at intervals along the circumference of the rod portion 200, and the plurality of first grooves 210 are rotationally symmetrically arranged around the axis of the rod portion 200, and of course, if the number of the second grooves 110 is greater than two, the plurality of second grooves 110 are rotationally symmetrically arranged around the axis of the head portion 100.
In some embodiments, the first groove 210 is offset from the second groove 110. When the hexagon socket of the head 100 is worn and the hexagon socket cannot be screwed out, the clamping rods of the tweezers can be inserted into the two second grooves 110 on the outer side wall of the head 100, and the tweezers are used to drive the head 100 to rotate and screw out the screw. When the head 100 is disconnected from the shaft 200 or the shaft 200 is disconnected, the clamping rods of the forceps are inserted into the two second grooves 110 on the outer side wall of the head 100, the forceps rotate the head 100 and screw out the head 100, then the clamping rods of the forceps are inserted into the two first grooves 210 on the outer side wall of the shaft 200, and the forceps rotate the shaft 200 and screw out the shaft 200.
Referring to fig. 4, the present invention extraction tool makes the following embodiments:
the taking-out tool comprises a connecting handle 400 and a clamping head 500, wherein the connecting handle 400 is a cylindrical rod, a flat connector used for being connected with an electric drill mounting hole is arranged at the top of the connecting handle 400, and the outer diameter of the connecting handle 400 is smaller than or equal to that of the head 100. The collet 500 is coupled to the bottom end of the stem 400, and the cross-sectional shape of the collet 500 is matched with the shape of the fitting hole 21 of the base 20 so that the collet 500 can be inserted into the fitting hole 21. The bottom of the collet 500 is provided with two downwardly extending clamping blocks 510, the two clamping blocks 510 are symmetrically arranged around the axis of the collet 500, and the two clamping blocks 510 are located on the outer edge of the collet 500.
In some embodiments, the number of clamp blocks 510 is less than or equal to the number of first grooves 210 of the bar portion 200. The plurality of clamping blocks 510 are distributed at intervals along the circumferential direction of the clamping head 500, and the positions of the plurality of clamping blocks 510 correspond to the positions of the plurality of first grooves 210 one by one.
Referring to fig. 5 to 7, the following embodiments are made in the taking out process of the dental implant screw and the taking out tool of the present invention:
referring to fig. 5, the dental implant restoration screw, the abutment 20 and the implant 10 are connected together, the head 100 and the rod 200 are not disconnected, and the hexagonal socket of the head 100 is worn, so that the dental implant restoration screw cannot be screwed out of the screw hole 11 of the implant 10. The collet 500 of the extracting tool is inserted into the fitting hole 21 of the abutment 20, the two clamping blocks 510 of the collet 500 are aligned with the two second grooves 110 of the outer side wall of the head 100, the clamping blocks 510 are inserted into the second grooves 110, and then the connecting shank 400 is rotated to rotate the head 100 so that the rod portion 200 is screwed out of the screw hole 11.
Referring to fig. 6, the dental implant prosthetic screw, the abutment 20, and the implant 10 are connected together, the head 100 is disconnected from the shaft 200, and the length of the remaining shaft 200 is large, so that the dental implant prosthetic screw cannot be screwed out of the screw hole 11 of the implant 10. The collet 500 of the extracting tool is inserted into the fitting hole 21 of the base 20, the two blocks 510 of the collet 500 are aligned with the two second grooves 110 of the outer side wall of the head 100, the blocks 510 are inserted into the second grooves 110, and then the extracting tool is pulled up to extract the head 100 from the fitting hole 21. Then the head 100 is separated from the collet 500, the collet 500 is inserted into the mounting hole 21 of the abutment 20, the two clamping blocks 510 of the collet 500 are aligned with the two first grooves 210 of the outer sidewall of the rod portion 200, the clamping blocks 510 are inserted into the first grooves 210, and then the stem portion 200 is rotated by rotating the connecting handle 400 such that the rod portion 200 is unscrewed from the screw hole 11.
Referring to fig. 7, the dental implant restoration screw, the abutment 20 and the implant 10 are connected together, the head 100 is disconnected from the stem 200, and the length of the remaining stem 200 is small, so that the dental implant restoration screw cannot be screwed out of the screw hole 11 of the implant 10. The collet 500 of the extracting tool is inserted into the fitting hole 21 of the base 20, the two blocks 510 of the collet 500 are aligned with the two second grooves 110 of the outer side wall of the head 100, the blocks 510 are inserted into the second grooves 110, and then the extracting tool is pulled up to extract the head 100 from the fitting hole 21. Then, the abutment 20 is taken out of the mounting hole 12 of the implant 10, the head 100 is separated from the collet 500, the collet 500 is inserted into the mounting hole 12 of the implant 10, the two clamping blocks 510 of the collet 500 are aligned with the two first grooves 210 on the outer side wall of the rod portion 200, the clamping blocks 510 are inserted into the first grooves 210, and then the connecting handle 400 is rotated to rotate the rod portion 200 so that the rod portion 200 is screwed out of the screw hole 11.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.
Claims (8)
1. The utility model provides an oral implantation restores screw which characterized in that: the method comprises the following steps:
a head (100);
the outer side wall of the rod part (200) is provided with first grooves (210) extending in the vertical direction, the first grooves (210) penetrate upwards from the top of the rod part (200), the number of the first grooves (210) is at least two, the first grooves (210) are distributed at intervals along the circumferential direction of the rod part (200), and the outer side wall of the rod part (200) is further provided with external threads (220).
2. The dental implant restoration screw of claim 1, wherein: the outer side wall of the head part (100) is provided with second grooves (110) extending in the vertical direction, the second grooves (110) penetrate through the top of the head part (100) upwards, at least two second grooves (110) are formed, and the second grooves (110) are distributed at intervals along the circumferential direction of the head part (100).
3. The dental implant restoration screw of claim 2, wherein: the second groove (110) penetrates downward through the bottom of the head (100).
4. The dental implant restoration screw of claim 3, wherein: the bottom ends of the second grooves (110) are in one-to-one opposite communication with the top ends of the first grooves (210).
5. The dental implant restoration screw of claim 1, wherein: the first plurality of grooves (210) is arranged rotationally symmetrically about the axis of the shaft (200).
6. The dental implant restoration screw of claim 1, wherein: the first groove (210) penetrates through the bottom of the rod part (200) downwards.
7. The dental implant restoration screw of claim 1, wherein: the dental implant restoration screw further comprises a locknut (300), and the locknut (300) is in threaded connection with the rod part (200).
8. An extraction tool, comprising: the method comprises the following steps:
a connecting handle (400);
the clamping head (500) is connected to the bottom of the connecting handle (400), clamping blocks (510) extending downwards are arranged at the bottom of the clamping head (500), the clamping blocks (510) are located on the outer edge of the clamping head (500), at least two clamping blocks (510) are arranged, and the clamping blocks (510) are distributed at intervals along the circumferential direction of the clamping head (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221311116.3U CN217853391U (en) | 2022-05-27 | 2022-05-27 | Oral implant repair screw and removal tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221311116.3U CN217853391U (en) | 2022-05-27 | 2022-05-27 | Oral implant repair screw and removal tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217853391U true CN217853391U (en) | 2022-11-22 |
Family
ID=84091544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221311116.3U Active CN217853391U (en) | 2022-05-27 | 2022-05-27 | Oral implant repair screw and removal tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217853391U (en) |
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2022
- 2022-05-27 CN CN202221311116.3U patent/CN217853391U/en active Active
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