CN107411829B

CN107411829B - Crown extractor

Info

Publication number: CN107411829B
Application number: CN201710301331.2A
Authority: CN
Inventors: 卢俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-02
Filing date: 2017-05-02
Publication date: 2020-05-12
Anticipated expiration: 2037-05-02
Also published as: CN107411829A

Abstract

The invention provides a crown extractor, relates to dental medical equipment, and aims to provide a crown extractor which can apply force to teeth in a balanced manner and reduce safety accidents in the process of crown extraction as much as possible. The invention relates to a crown extractor, which comprises: the device comprises a first crown taking hook, a second crown taking hook, a first flexible rope, a second flexible rope, a locking buckle and a vibration device; one end of the first flexible rope is fixed with the first crown taking hook; one end of the second flexible rope is fixed with the second crown taking hook; the locking buckle is matched with the first flexible rope and the second flexible rope simultaneously and can lock and buckle the first flexible rope and the second flexible rope into a whole at the lowest position of teeth; the vibration device is fixedly connected with the other end of the first flexible rope, and/or the vibration device is fixedly connected with the other end of the second flexible rope.

Description

Crown extractor

Technical Field

The invention relates to dental medical equipment, in particular to a crown extractor.

Background

The utility model discloses a take out the tooth that takes out the hat hook, take out the hat ware and be one of the equipment of taking the hat in the operation of tearing open the hat, the hat ware of taking that is used commonly in the existing market includes takes the hat hook and with take the vibrator that the hat hook links to each other, wherein takes the hat hook and be used for catching up the tooth that waits to pull out, vibrator is used for exerting vibrations to taking the hat hook, and the tooth is just pulled out along with the vibrations of taking the hat hook. However, in the actual crown removing process, the existing crown removing device only has a single crown removing hook, so that the crown removing hook can be arranged on one side of the tooth when the crown is removed, the tooth is easy to incline, break or even damage the gum due to the force applied to the single side of the tooth, and the medical safety of a patient cannot be guaranteed.

Disclosure of Invention

The invention aims to solve the technical problem of providing a tooth crown remover which can apply force to teeth in a balanced manner and reduce safety accidents in the process of crown removal as much as possible.

The invention relates to a crown extractor, which comprises: the device comprises a first crown taking hook, a second crown taking hook, a first flexible rope, a second flexible rope, a locking buckle and a vibration device;

one end of the first flexible rope is fixed with the first crown taking hook; one end of the second flexible rope is fixed with the second crown taking hook;

the locking buckle is matched with the first flexible rope and the second flexible rope simultaneously and can lock and buckle the first flexible rope and the second flexible rope into a whole at the lowest position of teeth;

the vibration device is fixedly connected with the other end of the first flexible rope, and/or the vibration device is fixedly connected with the other end of the second flexible rope.

Preferably, the method further comprises the following steps: an anti-slip flexible cord; wherein the one end of flexible rope of antiskid can with first get and hat the hook fixed connection, the other end can with the second gets and hat hook fixed connection.

Preferably, the first coping hook has: the first adjusting bolt is provided with a crack; the first fixing hole is formed in the first crown taking hook, the threaded end of the first adjusting bolt penetrates through the first fixing hole and then can be matched with the first adjusting nut in a rotating mode, and in the process that the first adjusting nut is matched with the first adjusting bolt in a rotating mode, the crack can be reduced to enable one end of the anti-skidding flexible rope to be clamped and fixed. Preferably, the first fixing hole is a strip-shaped hole, and the first adjusting bolt can move in the length direction of the first fixing hole; the first adjusting nut can lock and fix any position of the first adjusting bolt relative to the first fixing hole.

Preferably, the crack extends in the axial direction of the first adjusting bolt, and the crack narrows from its end close to the threaded end of the first adjusting bolt to its end away from the threaded end of the first adjusting bolt;

before the first adjusting bolt is locked and fixed relative to the first fixing hole by the first adjusting nut, the crack is reduced to be capable of clamping and fixing one end of the anti-skid flexible rope.

Preferably, the head of the first adjusting bolt is provided with a limiting notch, and a limiting sliding groove adapted to the limiting notch is arranged on the first crown taking hook; when the threaded end of the first adjusting bolt penetrates through the first fixing hole and the plane of the limiting notch falls into the limiting sliding groove, the first adjusting bolt can only move in the length direction of the first fixing hole and cannot rotate around the axis of the first adjusting bolt.

Preferably, the first crown taking hook is a hollow structure, and one end of the hollow structure is a first opening; one end of the anti-skid flexible rope can enter the hollow structure through the first opening and is clamped and fixed in the crack.

Preferably, the other end of the hollow structure is a second opening; the first flexible rope enters the hollow structure through the second opening and then is fixedly connected with one end, fixedly connected with the first crown taking hook, of the anti-skidding flexible rope.

Compared with the prior art, the flexible tooth crown taking device comprises the first crown taking hook and the second crown taking hook, when the flexible tooth crown taking device is used for taking out a crown, the two crown taking hooks are respectively arranged on opposite sides of teeth, and then the first flexible rope and the second flexible rope are locked and buckled into a whole at the lowest position of the teeth by the locking buckle; then the vibration device is started and transmits vibration moment to the teeth sequentially through the flexible rope and the crown taking hook, so that the effect of pulling out the teeth is achieved. Because two are got and are covered the hook and set up the opposition side at the tooth, and first flexible rope and the flexible rope of second are as an organic whole by the hasp in the extreme lower position department of tooth, consequently get the vibrations moment that covers the hook and apply to both sides through flexible rope unanimous, and the power of applying to the tooth is balanced promptly to tear open the hat in-process, greatly reduced the tooth and pulled out the risk oblique, that pull out, more ensured the safety of gum, ensured patient's safety of seeking medical advice.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a crown extractor of the present invention;

FIG. 2 is a view showing the fitting relationship between the crown extractor and teeth during the crown removing process according to the present invention;

FIG. 3 is a semi-sectional view of a first crown hook of the crown extractor of the present invention;

FIG. 4 is an exploded view of a first crown extractor hook of the crown extractor of the present invention;

FIG. 5 is a front view of a first crown hook of the crown extractor of the present invention;

FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a schematic perspective view of a first adjusting bolt included in a first crown extractor of the present invention.

Reference numerals:

1-first taking crown hook

11-first fixing hole

111-limit sliding chute

12-first adjusting bolt

121-crack

122-limit notch

13-first adjusting nut

2-second taking crown hook

3-first Flexible rope

4-second Flexible rope

5-vibration device

6-locking fastener

7-antiskid flexible rope

A-teeth

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-2, the crown extractor provided by the present invention comprises: the device comprises a first crown taking hook 1, a second crown taking hook 2, a first flexible rope 3, a second flexible rope 4, a vibration device 5 (a manual vibration device or an automatic vibration device) and a locking buckle 6; one end of the first flexible rope 3 is fixed with the first crown taking hook 1; one end of the second flexible rope 4 is fixed with the second crown taking hook 2; the locking buckle 6 is matched with the first flexible rope 3 and the second flexible rope 4 at the same time, and can lock and buckle the first flexible rope 3 and the second flexible rope 4 into a whole at the lowest position of the teeth A; the vibration device 5 is fixedly connected with the other end of the first flexible rope 3, and/or the vibration device 5 is fixedly connected with the other end of the second flexible rope 4.

As shown in fig. 2, when the present invention is used to perform crown removal, the two crown-removing

hooks

1 and 2 are respectively disposed on opposite sides of a tooth a, and then the first flexible string 3 and the second flexible string 4 are locked together at the lowest position of the tooth a by using the locking buckle 6; then the vibration device 5 is started, the vibration device 5 sequentially passes through the first flexible rope 3 and/or the second flexible rope 4 and the

crown taking hook

1 and 2 to transmit vibration moment to the tooth A, and therefore the effect of pulling out the tooth A is achieved. Because two

take hat hook

1, 2 to set up in tooth A's opposition side, and first flexible rope 3 and the flexible rope 4 of second are as an organic whole by the hasp in tooth A's extreme lower position department, consequently, it is unanimous to take the vibrations moment that

hat hook

1, 2 were applyed to both sides through first flexible rope 3 and/or the flexible rope 4 of second, it is balanced to tooth A's power of applying promptly, thereby in the process of tearing open the hat, tooth A has greatly been reduced and has been pulled out to one side, the risk of pulling out, the safety of gum has more been ensured, patient's safety of seeking medical advice has been ensured.

In order to prevent the first crown taking hook 1 or the second crown taking hook 2 from falling off from the tooth in the crown taking process, the invention also comprises the following steps: an anti-slip flexible cord 7; wherein the one end of the flexible rope 7 of antiskid can with first get and hat hook 1 fixed connection, the other end can get with the second and hat hook 2 fixed connection.

In order to realize the fixed connection of the anti-skid flexible rope 7 and the first crown taking hook 1, as shown in fig. 3-7, the utility model provides a first crown taking hook has: a first fixing hole 11 (having a slit 121 thereon), a first adjusting bolt 12 and a first adjusting nut 13; wherein first fixed orifices 11 set up on first taking hat hook 1, and the screw thread end of first adjusting bolt 12 can join in marriage soon with first adjusting nut 13 after running through first fixed orifices 11, and at the in-process that first adjusting nut 13 joins in marriage soon relative to first adjusting bolt 12, and crack 121 can reduce to the one end centre gripping of the flexible rope 7 of antiskid fixedly.

Considering that the anti-skid flexible rope 7 is deformed and lengthened due to the influence of tensile force in the crown removing process, and once the anti-skid flexible rope 7 is lengthened, the limiting effect on the first crown taking hook 1 and the second crown taking hook 2 is lost, so that the first crown taking hook 1 or the second crown taking hook 2 still possibly falls off from the tooth a, and in order to avoid the problem, as shown in fig. 2 and fig. 3-5, the first fixing hole 11 included in the first crown taking hook 1 is a strip-shaped hole, and the first adjusting bolt 12 can move in the length direction of the first fixing hole 11; the first adjusting nut 13 can lock and fix any position of the first adjusting bolt 12 relative to the first fixing hole 11. Once the anti-skid flexible rope 7 is deformed and lengthened, the anti-skid flexible rope 7 can be restored to a tightened state by adjusting the first adjusting bolt 12 to be positioned in the length direction of the first fixing hole 11, so that the first crown taking hook 1 and the second crown taking hook 2 are continuously limited to fall off from the tooth A.

In order to avoid this problem, the first adjusting bolt 12 of the present invention includes the slit 121 extending in the axial direction of the first adjusting bolt 12, and the slit 121 is gradually narrowed from its end close to the threaded end of the first adjusting bolt to its end away from the threaded end of the first adjusting bolt, considering that the anti-slip flexible cord 7 is likely to fall out of the slit 121 of the first adjusting bolt 12 when the position of the first adjusting bolt 12 relative to the first fixing hole 11 is adjusted, and because the first adjusting bolt 12, particularly the slit 121, has a small volume, the anti-slip flexible cord 7 is difficult to be inserted into the slit 121 again once it falls out; before the first adjusting screw 12 is locked and fixed relative to the first fixing hole 11 by the first adjusting nut 13, the gap 121 is narrowed to clamp and fix one end of the anti-slip flexible rope 7. Correspondingly, when the position of the first adjusting bolt 12 needs to be adjusted so that the anti-skid flexible rope 7 is in a tensioning state, only the first adjusting nut 13 needs to be adjusted to a state that the first adjusting bolt 12 can slide along the length of the first fixing hole and the crack 121 continuously clamps and fixes the anti-skid flexible rope 7, so that the problem that the anti-skid flexible rope 7 falls off from the crack 121 is avoided, and the efficiency of crown tooth dismounting is improved.

Considering that one end of the anti-skid flexible rope 7 is fixed in the crack 121 of the first adjusting bolt 12, if the first adjusting bolt 12 rotates during the process of rotationally matching the first adjusting nut 13 with respect to the first adjusting bolt 12, the anti-skid flexible rope 7 will wind on the first adjusting bolt 12, since the surface of the first adjusting bolt 12 is provided with a thread, and the thread is likely to form abrasive cutting on the anti-skid flexible rope 7 wound thereon, which will cause the anti-skid flexible rope 7 to break over time, in order to avoid the problem that the head of the first adjusting bolt 12 has a limit notch 122, the first crown taking hook 1 is provided with a limit chute 111 corresponding to the limit notch 122; when the threaded end of the first adjusting bolt 12 runs through the first fixing hole 11 and the plane of the limiting notch 122 falls into the limiting sliding groove 111, the first adjusting bolt 12 can only move in the length direction of the first fixing hole 11 and cannot rotate around the axis of the first adjusting bolt, so that the problem that the anti-skid flexible rope 7 is wound on the first adjusting bolt 12 is avoided, and the risk that the anti-skid flexible rope 7 is broken by abrasive cutting is avoided.

In order to reduce the occupied space of the anti-skid flexible rope 7 and the overall complexity of the anti-skid flexible rope during crown removal by using the anti-skid flexible rope, the first crown taking hook 1 is of a hollow structure, and one end of the hollow structure is provided with a first opening; one end of the anti-slip flexible rope 7 can enter the hollow structure through the first opening and is clamped and fixed in the crack 121.

In addition, when the position of the first adjusting bolt 12 in the first fixing hole 11 is adjusted, the force application point for applying force to the first adjusting bolt 12 is not easy to find out in consideration of the small size of the first adjusting bolt 12, in other words, the technical difficulty in adjusting the position of the first adjusting bolt 12 relative to the first fixing hole 11 is high, and in order to overcome the defect, the other end of the hollow structure 14 is a second opening; first flexible rope 3 gets into behind the hollow structure 14 through the second is uncovered and is used for getting in the flexible rope 7 with first one end of taking hat hook 1 fixed connection and link up fixedly. Therefore, when the position of the first adjusting bolt 12 in the first fixing hole 11 needs to be adjusted, the first adjusting nut 13 is adjusted to a state that the first adjusting bolt 12 can slide along the length of the first fixing hole 11 and the crack 121 continuously clamps and fixes the anti-skid flexible rope 7, then the first flexible rope 3 is pulled, because one end of the first flexible rope 3 is still fixed relative to the first adjusting bolt 12 at the moment, in the process of pulling the first flexible rope 3, the first adjusting bolt 12 can be correspondingly pulled, and when the first adjusting bolt 12 is pulled to a state that the anti-skid flexible rope 7 is in a tightening state, the first adjusting nut 13 is adjusted to a state that the first adjusting bolt 12 cannot slide along the length of the first fixing hole 11.

It should be noted that, the above embodiment only describes the structure of the first crown taking hook and the connection relationship between the first crown taking hook and the anti-skid flexible rope, and the connection relationship between the first crown taking hook and the first flexible rope; the structure of the second crown taking hook, the connection relationship between the second crown taking hook and the anti-skid flexible rope, and the connection relationship between the second crown taking hook and the second flexible rope can be consistent with the description of the first crown taking hook, and are not described herein again.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A crown extractor, comprising: the device comprises a first crown taking hook, a second crown taking hook, a first flexible rope, a second flexible rope, a locking buckle and a vibration device;

2. The crown extractor of claim 1, further comprising: an anti-slip flexible cord; wherein the one end of flexible rope of antiskid can with first get and hat the hook fixed connection, the other end can with the second gets and hat hook fixed connection.

3. A crown extractor according to claim 2, characterized in that said first crown extractor hook has: the first fixing hole, the first adjusting bolt and the first adjusting nut; the first adjusting bolt is provided with a crack, the first fixing hole is formed in the first crown taking hook, the threaded end of the first adjusting bolt penetrates through the first fixing hole and then can be matched with the first adjusting nut in a rotating mode, the first adjusting nut is opposite to the first adjusting bolt in the rotating matching process, and the crack can be reduced to fix one end of the anti-skidding flexible rope in a clamping mode.

4. The crown extractor according to claim 3, wherein the first fixing hole is a strip-shaped hole, and the first adjusting bolt can move in the length direction of the first fixing hole; the first adjusting nut can lock and fix any position of the first adjusting bolt relative to the first fixing hole.

5. The crown extractor according to claim 4, wherein the crack extends in the axial direction of the first adjusting bolt, and the crack is gradually narrowed from the end close to the threaded end of the first adjusting bolt to the end far away from the threaded end of the first adjusting bolt;

6. The crown extractor according to claim 5, wherein the head of the first adjusting bolt is provided with a limiting notch, and the first crown extractor hook is provided with a limiting chute adapted to the limiting notch; when the threaded end of the first adjusting bolt penetrates through the first fixing hole and the plane of the limiting notch falls into the limiting sliding groove, the first adjusting bolt can only move in the length direction of the first fixing hole and cannot rotate around the axis of the first adjusting bolt.

7. The crown extractor according to claim 6, wherein the first crown extracting hook is a hollow structure, and one end of the hollow structure is a first opening; one end of the anti-skid flexible rope can enter the hollow structure through the first opening and is clamped and fixed in the crack.

8. The crown extractor according to claim 7, wherein the other end of the hollow structure is a second opening; the first flexible rope enters the hollow structure through the second opening and then is fixedly connected with one end, fixedly connected with the first crown taking hook, of the anti-skidding flexible rope.