CN218606876U - Minimally invasive tooth broken root taking-out device - Google Patents

Abstract

The utility model relates to a tooth instrument of extracing out in oral treatment, public a tooth root cutting wicresoft remove device belongs to a dental medical instrument, including self tapping screw cone, connecting rod, dislocation sleeve, tail end fixed part, wherein the head end of connecting rod is connected with the one end of keeping away from self tapping screw cone point-end, and the tail end fixed part has been furnished with to the tail end of connecting rod, and wherein the cover is equipped with along self length direction free activity's dislocation sleeve on the connecting rod, and should dislocate the sleeve and realize spacingly through the tail end fixed part. The utility model is used for pull out the broken root of tooth or remain the root of tooth, avoid too much destruction root of tooth bone around the root of tooth, the utility model discloses the structure is light and handy, and simple to use is effectual, can adopt the preparation of medical stainless steel, and convenient washing and disinfection are repeatedly usable.

Description

Minimally invasive tooth broken root taking-out device

Technical Field

The utility model relates to the field of oral medical instruments, in particular to a minimally invasive tooth root taking-out device.

Background

The tooth extraction is the most common operation in oral clinical treatment, and there are special tooth extraction appliances, such as tooth extraction forceps, root tip forceps, dental elevator, root tip elevator, and various auxiliary appliances. In the tooth extraction operation, the whole tooth can not be completely extracted under many conditions, the tooth root is easy to break in the alveolar bone, the extraction of the conventional instruments is difficult, the alveolar bone around the broken root needs to be removed and enlarged, and then the residual tooth root is extracted by using an apical elevator or a dental elevator.

Disclosure of Invention

Aiming at the problems of the existing conventional tooth extraction apparatus, the utility model designs a minimally invasive tooth root taking-out apparatus which is used for taking out the broken root or remaining the tooth root and reducing the wound to the alveolar bone as much as possible, thus being beneficial to healing recovery and subsequent treatment of the alveolar bone.

In order to achieve the above object, the utility model adopts the following technical scheme: the minimally invasive tooth root taking-out device comprises a self-tapping thread cone, a connecting rod, a dislocation sleeve and a tail end fixing part, wherein the head end of the connecting rod is connected with one end far away from the tip end of the self-tapping thread cone, the tail end of the connecting rod is provided with the tail end fixing part, the dislocation sleeve which freely moves along the self length direction is sleeved on the connecting rod, and the dislocation sleeve is limited by the self-tapping thread cone and the tail end fixing part.

Further, the self-tapping screw cone comprises a cone body, a first connecting portion and a second connecting sleeve which are connected in sequence, wherein a first external thread is arranged on the outer side wall of the cone body, a first internal thread is arranged on the inner wall of the second connecting sleeve, a second external thread is arranged on the outer wall of the head end of the connecting rod, and the head end of the connecting rod is assembled with the first internal thread of the second connecting sleeve through the second external thread to achieve threaded connection.

Furthermore, the outer side wall of the head end of the connecting rod is also convexly provided with a circle of limiting convex block, the limiting convex block is positioned on one side of the second external thread far away from the second connecting sleeve, and the dislocation sleeve is sleeved on the connecting rod and moves between the limiting convex block and the tail end fixing part.

Furthermore, the outer diameters of the limiting lug, the second connecting sleeve and the tail end fixing part are the same, and anti-skidding grid grains are arranged on the outer side walls of the limiting lug and the second connecting sleeve.

Furthermore, the internal diameter of the dislocation sleeve is larger than the external diameter of the connecting rod, and the internal diameter of the dislocation sleeve is smaller than the external diameter of the limiting bump.

Further, the taper of the cone body is 5 degrees.

Further, a third external thread is arranged on the outer side wall of the tail end of the connecting rod, a second internal thread is arranged on the inner wall of the tail end fixing part, and the tail end fixing part is assembled with the third external thread on the tail end of the connecting rod through the second internal thread.

Further, still including sled spanner, wherein sled spanner including integrative operation portion that sets up and connect the card of establishing at the operation portion end and establish the portion, wherein the card establishes a surface and has seted up the opening, and this first connecting portion card is established in the opening.

The beneficial effects of the utility model reside in that: the self-tapping thread cone can enter the inner root canal of the broken root through rotation, the broken root is embedded by the self-provided thread of the self-tapping thread cone, the broken root is dislocated and pulled out through outward dislocating force or prying force, and excessive damage to alveolar bone is avoided; the whole structure is very simple, the use is convenient, the tooth root can be taken out at one time, the speed is high, the operation wound is small, and the pain of a patient is small.

Drawings

Fig. 1 is a schematic overall structure diagram of a minimally invasive tooth broken root extraction device.

Fig. 2 is a schematic exploded structural view of a minimally invasive extraction device for a broken tooth root.

Fig. 3 is a schematic overall sectional structure diagram of the minimally invasive extracting device for the broken tooth roots.

Fig. 4 is a schematic structural view of the prying wrench.

Fig. 5 is a working schematic diagram of the impact dislocation method of the operation method 1.

Fig. 6 is a functional diagram of the prying dislocation method of the operation method 2.

The reference numbers illustrate: the self-tapping screw cone comprises a self-tapping screw cone body 1, a cone body 11, a first connecting part 12, a second connecting sleeve 13, a first internal thread 131, a connecting rod 2, a head end 21, a tail end 22, a limiting bump 23, an anti-skidding grid line 231, a tail end fixing part 3, a second internal thread 31, a dislocation sleeve 4, a prying wrench 5, a clamping part 51, an opening 511, an operating part 52 and a silica gel cushion 6.

Detailed Description

Please refer to fig. 1-3, the present invention relates to a minimally invasive tooth root taking-out device, which comprises a self-tapping cone 1, a connecting rod 2, a dislocation sleeve 4 and a tail end fixing part 3, wherein the head end 21 of the connecting rod 2 is connected with the end far away from the tip of the self-tapping cone 1, the tail end 22 of the connecting rod 2 is provided with the tail end fixing part 3, wherein the dislocation sleeve 4 freely moving along the length direction is sleeved on the connecting rod 2, and the dislocation sleeve 4 is limited by the self-tapping cone 1 and the tail end fixing part 3.

Further, self tapping screw cone 1 is including the cone body 11, first connecting portion 12, the second connecting sleeve 13 that connect gradually, and wherein the lateral wall of cone body 11 is provided with first external screw thread, and the inner wall of second connecting sleeve 13 is provided with first internal thread 131, and wherein the head end 21 outer wall of connecting rod 2 is provided with the second external screw thread, and wherein the head end 21 of connecting rod 2 joins in marriage through the first internal thread 131 of second external screw thread and second connecting sleeve 13 and joins in marriage the realization threaded connection.

Wherein in this particular embodiment, the self-tapping threaded cone 1 comprises three sections: cone body 11, first connecting portion 12, second connecting sleeve 13. The cone body 11 is a cone with threads, and the taper thereof is 5 degrees, i.e. (D1-D0)/L1 =0.05; the taper body 11 can have different lengths (the length L1 of the taper body 11 ranges from 12mm to 18 mm) and the tip diameters D0 (such as 0.3mm,0.4mm and 0.5mm) of the taper body 11 with different sizes. The self-tapping thread cone 1 can be made of medical stainless steel in different types, and can be reused after sterilization, and if the cone thread is damaged, a new one can be supplemented.

The first connecting part 12 is a connecting part for connecting the cone body 11 and the second connecting sleeve 13; the second coupling sleeve 13 has a first internal thread 131 on its inner wall, which is connected to a second external thread of the head end 21 of the coupling rod 2. Therefore, the connecting rod 2 can be detachably connected with the self-tapping cone 1, and the self-tapping cone 1 with a proper size can be replaced according to actual needs.

Further, a third external thread is formed on the outer side wall of the tail end 22 of the connecting rod 2, a second internal thread 31 is formed on the inner wall of the tail end fixing part 3, and the tail end fixing part 3 is assembled with the third external thread of the tail end 22 of the connecting rod 2 through the second internal thread 31.

Furthermore, the outer side wall of the head end 21 of the connecting rod 2 is further convexly provided with a circle of limiting convex block 23, the limiting convex block 23 is positioned on one side, away from the second connecting sleeve 13, of the second external thread, and the dislocation sleeve 4 is sleeved on the connecting rod 2 and moves between the limiting convex block 23 and the tail end fixing part 3. Wherein the effect of spacing lug 23 is the removal of restriction dislocation sleeve 4, and spacing lug 23 external diameter is the same with second connecting sleeve 13 external diameter, and the finger generally holds spacing lug 23 during the operation, spacing lug 23, second connecting sleeve 13, tail end fixed part 3 three's external diameter all is the same, and spacing lug 23 and second connecting sleeve 13's lateral wall has all seted up anti-skidding net check 231. The design of the anti-slip mesh 231 on the surfaces of the limiting convex block 23 and the second connecting sleeve 13 can greatly improve the anti-slip performance.

Further, the inner diameter of the dislocation sleeve 4 is larger than the outer diameter of the connecting rod 2, and the inner diameter of the dislocation sleeve 4 is smaller than the outer diameter of the limiting bump 23. Wherein the inner diameter of the dislocation sleeve 4 is slightly larger than the outer diameter of the connecting rod 2, and the dislocation sleeve can freely slide after the connecting rod 2 is sleeved; and cannot be detached from the tail end 22 after the tail end fixing portion 3 is fixed. And the dislocation sleeve 4 acts as a ram when sliding towards the tail end 22 of the connecting rod 2 to strike the tail end fixing part 3.

As shown in fig. 4, further, the wrench 5 further includes a prying wrench 5, wherein the prying wrench 5 includes an operation portion 52 and a clamping portion 51 connected to a distal end of the operation portion 52, wherein an opening 511 is formed on a surface of the clamping portion 51, and the first connecting portion 12 is clamped in the opening 511. The prying wrench 5 has an opening 511 matched with the self-tapping taper 1 in size, can clamp the first connection portion 12 and drive the self-tapping taper 1 to move upward, and can freely retract and release, and the prying wrench 5 can be designed to have different lengths by utilizing a lever principle.

Referring to fig. 5, the utility model can be operated in two ways, method 1 (percussion dislocation), according to the specific situation of the tooth extraction: 1 selecting proper self-tapping cone bodies 1 and 2 according to the position and size of a broken root and the thickness of a root canal inside the broken root, and connecting the selected self-tapping cone bodies 1 with a connecting rod 2, a dislocation sleeve 4 and a tail end fixing part 3. 3, the combined self-tapping thread cone 1 is inserted into the root canal of the broken root, and is rotated clockwise to go deep and fix the broken root by thread embedding, after the complete fixation, the tail part of the connecting rod 2 can be slightly shaken from left to right, so that the broken root is loosened, the resistance condition of the broken root and the dislocation direction can be sensed, the direction of the connecting rod 2 can be finely adjusted, and the broken root with smaller resistance can be pulled out by the dislocation rod. If the resistance is large, the dislocation sleeve 4 on the connecting rod 2 can be impacted with the tail end fixing part 3 backwards, and the dislocation sleeve can be impacted repeatedly until the broken root is loosened and then pulled out.

Referring to fig. 6, method 2 (prying dislocation method): the method only uses the self-tapping screw cone 1 and the prying wrench 5, and can be used for the condition that the resistance of the broken root is larger or the operation space is smaller, firstly, the proper self-tapping screw cone 1 is selected according to the thickness of the root canal inside the broken root, the tip end of the self-tapping screw cone reaches the root canal opening of the broken root, and the self-tapping screw cone is clockwise rotated by fingers to enter the root canal and fix the broken root, and the self-tapping screw cone can slightly shake after being completely fixed, so that the broken root is loosened, the dislocation direction is finely adjusted according to the resistance condition of the broken root, and if the resistance is smaller, the broken root can be directly taken out; if the sensed resistance is large, the silica gel soft pad 6 can be arranged on the adjacent teeth to protect the adjacent teeth, then the prying wrench 5 is used for clamping the first connecting part 12 of the self-tapping thread cone 1, the fulcrum of the adjacent teeth is pried upwards to realize dislocation, the method utilizes the lever principle, selects a proper fulcrum, and can achieve the purpose of root breaking and dislocation by small force.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims (8)

1. A minimally invasive tooth broken root taking-out device is characterized in that: including self tapping screw cone, connecting rod, dislocation sleeve, tail end fixed part, wherein the head end of connecting rod is connected with the tip's of keeping away from self tapping screw cone one end, and the tail end of connecting rod is furnished with the tail end fixed part, and wherein the cover is equipped with along self length direction free activity's dislocation sleeve on the connecting rod, and this dislocation sleeve passes through the tail end fixed part and realizes spacingly.

2. The minimally invasive extraction device for the broken tooth root according to claim 1, characterized in that: the self-tapping thread cone comprises a cone body, a first connecting part and a second connecting sleeve which are sequentially connected, wherein a first external thread is arranged on the outer side wall of the cone body, a first internal thread is arranged on the inner wall of the second connecting sleeve, a second external thread is arranged on the outer wall of the head end of the connecting rod, and the head end of the connecting rod is assembled with the first internal thread of the second connecting sleeve through the second external thread to realize threaded connection.

3. The minimally invasive extraction device for the broken tooth root according to claim 2, characterized in that: the outer side wall of the head end of the connecting rod is also convexly provided with a circle of limiting convex block, the limiting convex block is positioned on one side, away from the second connecting sleeve, of the second external thread, and the dislocation sleeve is sleeved on the connecting rod and moves between the limiting convex block and the tail end fixing part.

4. The minimally invasive extraction device for the broken tooth roots according to claim 3, characterized in that: the outer diameters of the limiting lug, the second connecting sleeve and the tail end fixing part are the same, and anti-skidding grid grains are arranged on the outer side walls of the limiting lug and the second connecting sleeve.

5. The minimally invasive extraction device for the broken tooth root according to claim 4, characterized in that: the inner diameter of the dislocation sleeve is larger than the outer diameter of the connecting rod, and the inner diameter of the dislocation sleeve is smaller than the outer diameter of the limiting bump.

6. The minimally invasive extraction device for the broken tooth root according to claim 5, characterized in that: the taper of the cone body is 5 degrees.

7. The minimally invasive extraction device for the broken tooth root according to claim 4, characterized in that: the outer side wall of the tail end of the connecting rod is provided with a third external thread, the inner wall of the tail end fixing part is provided with a second internal thread, and the tail end fixing part is assembled with the third external thread at the tail end of the connecting rod through the second internal thread.

8. The minimally invasive extraction device for the broken tooth root according to claim 2, characterized in that: still including prizing the spanner, wherein prizing the spanner and including integrative operation portion that sets up and connect the card of establishing at the operation portion end and establish the portion, wherein the card establishes a surface and has seted up the opening, and this first connecting portion card is established in the opening.

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