CN215228646U

CN215228646U - Implant tooth with getting mould post device of loosening soon

Info

Publication number: CN215228646U
Application number: CN202121902366.XU
Authority: CN
Inventors: 王国庆; 王献利; 郝志红; 王献刚; 李芳�
Original assignee: Anyang Sixth People's Hospital (anyang Stomatological Hospital)
Current assignee: Anyang Sixth People's Hospital (anyang Stomatological Hospital)
Priority date: 2021-08-15
Filing date: 2021-08-15
Publication date: 2021-12-21
Anticipated expiration: 2031-08-15

Abstract

The utility model discloses a device for unscrewing a mould taking column for dental implantation, which belongs to the technical field of medical instruments and comprises a first torsion bar and a second torsion bar, wherein the lower part of the front end of the second torsion bar is hinged with the lower part of the rear end of the first torsion bar, the upper part of the rear end of the first torsion bar is hinged with the front end of a connecting rod, the rear end of the connecting rod is hinged with the front end of a sliding rod, the second torsion bar is provided with a sliding groove, the sliding rod slides in the sliding groove, the rear end of the sliding rod is provided with an extended boss extending upwards, the extended boss outwards penetrates out of a guide groove of a threaded part, the rear end of the second torsion bar is fixed by a handle, the threaded part at the front part of the handle is screwed with an adjusting nut, the inner side of the adjusting nut is provided with an annular groove which extends outwards and is connected with the extended boss in a sliding way, not only can the screwing or unscrewing of the mould taking column near the outer side of an oral cavity be realized, when the mould taking column in the inner depth of the oral cavity is screwed or unscrewed, the included angle between the first torsion bar is adjusted, easily put a torsion bar front end into the end of the mould taking column.

Description

Implant tooth with getting mould post device of loosening soon

Technical Field

The utility model relates to a mold taking column unscrewing device for dental implantation, which belongs to the technical field of medical instruments.

Background

The artificial tooth implant is called as the third pair of teeth of human, the artificial tooth implant has good stability and high comfort level, the absorption of alveolar bones is reduced, the artificial tooth implant is more and more widely applied in various hospitals in China, the mold taking of the implant is a more critical step in the artificial tooth implant, two common mold taking methods are available, namely open mold taking and closed mold taking, the open mold taking is an ideal choice for the implant area with a complex anatomical structure due to high precision, when the open mold taking is carried out, a mold taking column needs to be fixed on an implant before the mold taking, after the impression is finished, the mold taking can be carried out only by unscrewing the mold taking column, the opening degrees of the oral cavities of different patients are different, the patient with smaller opening degree is difficult to lead the end part of the screwdriver for taking the mold column to be coaxial with the mold taking column or a part of the artificial tooth implanted by the patient to be positioned in the deep inside of the oral cavity, and is inconvenient for a doctor to operate, and even affect the quality of the modulus.

According to the mold taking column unscrewing device for the dental implant, the handle is adopted to fix the torsion bar II, the torsion bar II is hinged with the torsion bar I, the end part of the torsion bar is provided with a shape which is matched with the end part of the mold taking column, so that the mold taking column close to the outer side of the oral cavity can be screwed or unscrewed, and when the mold taking column in the inner depth of the oral cavity is screwed or unscrewed, the front end of the torsion bar I is easily placed into the end part of the mold taking column by adjusting the size of an included angle between the torsion bar II and the hinged torsion bar I, so that the mold taking column unscrewing device is suitable for patients with different oral cavity positions or different oral cavity openness; the torsion bar II is connected with the sliding bar through the connecting rod, the sliding bar is driven by the adjusting nut, the adjusted torsion bar II cannot automatically recover when being subjected to external force, an included angle formed by hinging the torsion bar II with the torsion bar I is not changed, and the stability is good; the outward extending lug boss arranged on the sliding rod is in sliding connection with the annular groove arranged on the adjusting nut screwed on the handle, and the sliding rod is pushed by a larger pushing force through the screw pair, so that the operation of a doctor is facilitated; the graduated scale is arranged on the handle, the rotating direction position of the screwing nut is convenient to observe and record, the position of the nut is adjusted once for a patient who possibly needs to take a secondary impression, and the secondary impression does not need to be adjusted for many times.

Disclosure of Invention

The utility model discloses aim at: the handle is screwed with the adjusting nut, and the adjusting nut drives the sliding rod and the connecting rod to adjust the included angle between the two hinged torsion bars of the torsion bar, so that the model taking column unscrewing device for the dental implant, which is suitable for different requirements of patients, is provided.

The technical scheme of the utility model is realized like this: a kind of implant uses the loose device of the mould column of taking, including the hand grip 1, adjusting nut 2, torsion bar two 3, torsion bar one 4, the front end of said torsion bar one 4 sets up the non-circular structure, in order to be suitable for the shape of end of mould column of taking, the lower part of front end of said torsion bar two 3 is hinged with the lower part of rear end of torsion bar one 4, the upper part of rear end of torsion bar one 4 is hinged with front end of tie rod 7, the rear end of tie rod 7 is hinged with front end of slide bar 9, the upside of said torsion bar two 3 has chutes 301 along the axial, the slide bar 9 slides in the chute 301, the rear end of the slide bar 9 has bosses 901 that are stretched out to the upside;

the handle 1 is of a hollow structure, the handle 1 is sleeved and fixed at the rear end of the torsion bar II 3, the front part of the handle 1 is provided with a threaded part 101 with a tapered diameter, the outer cylindrical surface of the threaded part 101 is provided with threads, the threaded part 101 is screwed with the adjusting nut 2, the middle part of the threaded part 101 is provided with a guide groove 103 along the axial direction, the guide groove 103 penetrates from the inner side to the outer side of the threaded part 101, the inner side of the adjusting nut 2 is provided with an annular groove 201, the outward-extending boss 901 penetrates through the threaded part 101 outwards and then extends into the groove 201, the outward-extending boss 901 slides in the annular groove 201, and the outward-extending boss 901 slides in the guide groove 103.

Preferably, an inner concave portion is arranged outside the threaded portion 101, and the inner concave portion is provided with a scale 102 for checking the axial position of the adjusting nut 2 after moving along the threaded portion 101.

Preferably, the structure that the second torsion bar 3 is hinged to the first torsion bar 4 is as follows: the front end of the second torsion bar 3 is provided with a through groove 302 which penetrates through the torsion bar up and down, and the lower part of the rear end of the first torsion bar 4 is hinged with two side edges of the through groove 302 through a first pin shaft 5.

Preferably, the structure that the torsion bar I4 is hinged with the connecting rod 7 is as follows: the upper side of the rear end of the first torsion bar 4 is provided with a rear extension boss 402 extending backwards, the rear extension boss 402 is positioned in the through groove 302, and the rear extension boss 402 is hinged with the front end of the connecting rod 7 through a second pin shaft 6.

Preferably, the sliding groove 301 is disposed to penetrate in the axial direction.

Preferably, the non-circular structure is one of an outer quadrangle, an outer pentagon, an outer hexagon and a quincunx.

Compared with the prior art, the utility model has the advantages of as follows:

Drawings

Fig. 1 is a general structure diagram of a mold taking column unscrewing device for a dental implant.

Fig. 2 is a general structural schematic diagram of the implant after the second torsion bar is cut by the model-taking column unscrewing device.

Fig. 3 is a schematic view of the overall structure with the adjusting nut removed.

Fig. 4 is a front view and a full sectional view of a mold extraction column unscrewing device for a dental implant.

Fig. 5 is a schematic structural view of the second torsion bar with a sliding groove.

Fig. 6 is a schematic structural view of the adjusting nut after being fully cut.

Fig. 7 is a schematic structural view of the second torsion bar.

Description of reference numerals: 1-handle, 2-adjusting nut, 3-torsion bar II, 4-torsion bar I, 5-pin shaft I, 6-pin shaft II, 7-connecting rod, 8-pin shaft III, 9-sliding rod, 101-thread part, 102-scale, 103-guide groove, 201-groove, 301-sliding groove, 302-through groove, 401-external hexagon, 402-rear extension boss and 901-external extension boss.

Detailed Description

Referring to fig. 1-7, the device for unscrewing a mold-taking post for dental implantation of the present invention comprises a handle 1, an adjusting nut 2, a torsion bar two 3, a torsion bar one 4, a pin shaft one 5, a pin shaft two 6, a connecting rod 7, a pin shaft three 8, and a sliding rod 9, wherein the rear side of the device is defined towards the handle direction, and the outer hexagon direction towards the outer torsion bar one is the front side, so as to describe the device, the front end of the torsion bar one 4 is provided with an outer hexagon 401, or can be a non-circular structure such as an outer quadrangle, an outer pentagon, a quincunx, etc., which is consistent with the inner polygon or quincunx shape of the end of the mold-taking post for dental implantation, the front end of the torsion bar two 3 is provided with a through groove 302 which penetrates up and down, the lower portion of the rear end of the torsion bar one 4 is hinged with both sides of the through groove 302 by the pin shaft one 5, the upper side of the rear end of the torsion bar one 4 is provided with a rear extending boss 402 which extends backwards, the rear extension boss 402 is positioned in the through groove 302, the rear extension boss 402 is hinged with the front end of the connecting rod 7 through a second pin shaft 6, the rear end of the connecting rod 7 is hinged with the front end of the sliding rod 9 through a third pin shaft 8, a sliding groove 301 is formed in the upper side of the second torsion bar 3 along the axial direction, the sliding groove 301 is arranged in the axial direction in a penetrating mode, the sliding rod 9 slides in the sliding groove 301, the connecting rod 7 is positioned in the sliding groove 301, and an extension boss 901 extending towards the upper side is arranged at the rear end of the sliding rod 9.

The handle 1 is of a hollow structure, the handle 1 is sleeved and fixed at the rear end of the torsion bar II 3, the front part of the handle 1 is provided with a threaded part 101 with a tapered diameter, the outer cylindrical surface of the threaded part 101 is provided with threads, the threaded part 101 is screwed with the adjusting nut 2 through a screw pair, the middle part of the threaded part 101 is provided with a guide groove 103 along the axial direction, the guide groove 103 penetrates from the inner side to the outer side of the threaded part 101, the guide groove 103 penetrates through the inner side and the outer side of the guide groove 103, the inner side of the adjusting nut 2 is provided with an annular groove 201, the outward extending boss 901 penetrates through the threaded part 101 outwards and then extends into the groove 201, the outward extending boss 901 slides in the annular groove 201, and the outward extending boss 901 slides in the guide groove 103.

The outer side of the threaded portion 101 is provided with an inner concave portion, and the inner concave portion is provided with a graduated scale 102 and used for checking the axial position of the adjusting nut 2 after moving along the threaded portion 101.

When the artificial tooth taking device is used, the model taking column of a patient is fixed and screwed down or the impression is unscrewed and taken down after the impression is finished, if the artificial tooth planted by the patient is a tooth close to the outer side of the oral cavity, such as a middle incisor, a side incisor, canine teeth and a first premolar position, the oral cavity opening degree of the patient can accommodate the model taking column unscrewing device for the dental implant, the handle 1 and the torsion bar I4 are coaxially arranged, the torsion bar I4 is coaxial with the model taking column, the model taking column is rotated, and the model taking column is screwed down and fixed or unscrewed and taken out.

If the false tooth planted by the patient is the tooth deep inside the oral cavity, such as the second molar and the first molar, the opening of the oral cavity of the patient cannot realize the coaxiality of the mold taking column unscrewing device and the mold taking column for the dental implant due to the limitation of the physiological structure of the oral cavity of the patient, even if the coaxiality of the mold taking column unscrewing device and the mold taking column for the dental implant can be realized, the patient feels nausea, the hand operation space of an operator is small, the mold taking column cannot be smoothly rotated, at the moment, the operator rotates the adjusting nut 2 according to the opening of the oral cavity of the patient, the adjusting nut 2 moves forwards, the sliding rod 9 is driven to move forwards through the extending boss 901 to push the connecting rod 7 to move forwards, the connecting rod 7 is pushed to move forwards, the front end of the first torsion rod 4 is hinged with the upper part of the first torsion rod 4, the lower part of the first torsion rod 4 is hinged with the front end of the second torsion rod 3, the first torsion rod 4 rotates around the first pin 5 under the forward pushing action of the connecting rod 7 to adjust the included angle between the first torsion rod 4 and the second torsion rod 3, the proper included angle between the first torsion bar 4 and the second torsion bar 3 is set according to the dental implant position of the patient, the visual angle of an operator, the light irradiation position and the like, the outer hexagon at the front end of the first torsion bar 4 is inserted into the corresponding groove of the model taking column for screwing or unscrewing, if the patient's dental implant position is complicated by anatomical issues, such as the denture may need to be implanted at an angle, after the impression is possibly inverted and the dental crown is manufactured for a while, the trial wearing effect is not ideal, and when a secondary impression is needed, for a patient with a complicated physiological anatomical structure of the position of the dental implant denture, the scale numerical value of the adjusting nut 2 of the mold taking column unscrewing device for the dental implant is recorded when the first impression is taken, and during secondary impression, the adjusting nut 2 is directly adjusted to the recording position during primary impression, and the adjusting process of the included angle between the first torsion bar 4 and the second torsion bar 3 is reduced.

Claims

1. The utility model provides a mold taking column unscrewing device for dental implantation which characterized in that: the mold taking device comprises a handle (1), an adjusting nut (2), a second torsion bar (3) and a first torsion bar (4), wherein the front end of the first torsion bar (4) is provided with a non-circular structure and is used for adapting to the shape of the end part of a mold taking column, the lower part of the front end of the second torsion bar (3) is hinged with the lower part of the rear end of the first torsion bar (4), the upper part of the rear end of the first torsion bar (4) is hinged with the front end of a connecting rod (7), the rear end of the connecting rod (7) is hinged with the front end of a sliding rod (9), the upper side of the second torsion bar (3) is provided with a sliding groove (301) along the axial direction, the sliding rod (9) slides in the sliding groove (301), and the rear end of the sliding rod (9) is provided with an outward extending boss (901) extending towards the upper side;

the handle (1) is of a hollow structure, the rear end of the torsion bar II (3) is sleeved and fixed on the handle (1), a threaded portion (101) with a reduced diameter is arranged at the front portion of the handle (1), threads are arranged on the outer cylindrical surface of the threaded portion (101), the threaded portion (101) is screwed with the adjusting nut (2), a guide groove (103) along the axial direction is arranged in the middle of the threaded portion (101), the guide groove (103) penetrates from the inner side to the outer side of the threaded portion (101), an annular groove (201) is arranged on the inner side of the adjusting nut (2), the outward extending boss (901) penetrates through the threaded portion (101) outwards and then extends into the groove (201), the outward extending boss (901) slides in the annular groove (201), and the outward extending boss (901) slides in the guide groove (103).

2. The mold extraction column unscrewing device for the dental implant according to claim 1, wherein: the outer side of the threaded portion (101) is provided with an inner concave portion, and the inner concave portion is provided with a graduated scale (102) and used for checking the axial position of the adjusting nut (2) after moving along the threaded portion (101).

3. The mold extraction column unscrewing device for the dental implant according to claim 1, wherein: the structure that the second torsion bar (3) is hinged with the first torsion bar (4) is as follows: the front end of the second torsion bar (3) is provided with a through groove (302) which penetrates through the torsion bar up and down, and the lower part of the rear end of the first torsion bar (4) is hinged with two side edges of the through groove (302) through a first pin shaft (5).

4. The mold extraction column unscrewing device for the dental implant according to claim 1, wherein: the structure that the torsion bar I (4) is hinged with the connecting rod (7) is as follows: the upper side of the rear end of the first torsion bar (4) is provided with a rear extension boss (402) extending backwards, the rear extension boss (402) is positioned in the through groove (302), and the rear extension boss (402) is hinged with the front end of the connecting rod (7) through a second pin shaft (6).

5. The device for unscrewing the model extraction column for the dental implant according to any one of claims 1 to 4, wherein: the sliding groove (301) is arranged in a penetrating way along the axial direction.

6. The device for unscrewing the model extraction column for the dental implant according to any one of claims 1 to 4, wherein: the non-circular structure is one of an outer quadrangle, an outer pentagon, an outer hexagon and a quincunx.