KR20210151517A - Removing apparatus of implant abutment - Google Patents

Abstract

The present invention relates to a device for removing an implant abutment, and more specifically relates to a device for removing an implant abutment which separates and removes an implant abutment from a fixture. Provided is a device for removing an implant abutment which comprises a rod-shaped cylinder having a penetration hole formed therein, wherein the cylinder comprises: an introduction part which is disposed at one end of the cylinder and formed in a divided manner in a longitudinal direction; a protrusion part which protrudes to be formed at the external side of the introduction part; a body part which is formed by extending from the introduction part; and a combining part which is disposed at the other end of the cylinder and has a female screw on at least a part of an inner side wall. According to the present invention, an abutment can be stably removed.

Description

Abutment removal device for implants {Removing apparatus of implant abutment}

The present invention relates to an abutment removal device for an implant, and more particularly, to an apparatus for separating and removing an abutment for an implant from a fixture.

A dental implant is an artificial tooth root made of screw-shaped titanium, that is, a fixture in the area where teeth have been partially or completely lost, and adhered to the alveolar bone, and a dental prosthesis or crown is placed in the fixture. It refers to an artificial tooth structure formed by fixing or such a dental treatment method. Implants can be operated only on the lost part without damaging the adjacent teeth or surrounding tissue around the lost tooth. It is widely used as a dental treatment method for restoring damaged or lost teeth because it can form an aesthetic feeling almost identical to that of natural teeth in appearance.

These implants are generally placed in the alveolar bone to become an artificial root of a fixture (fixture), an abutment fixed on the fixture, an abutment screw (abutment screw) and abutment for fixing the abutment to the fixture It consists of a prosthesis as an artificial tooth fixed to the

These implants are a fastening type in which the fixture is adhered to the alveolar bone during the procedure, and then, the abutment is fixed using a screw or the like to fix the fixture to the fixture. There are locking types that are combined using

Among them, the locking type is a method that does not use a screw, and a tapered coupling can maintain a very high coupling force. This method has an advantage in that there is no concern about screw loosening, breakage, etc., and since the fixture and the abutment are precisely combined, it is possible to prevent bacteria from being caught or propagated between the abutment and the fixture. However, in this locking type, when the abutment sinks down to the fixture as the user uses it after coupling and it is necessary to separate the abutment from the fixture due to damage to the abutment, the abutment is separated from the fixture There is a problem that is very difficult to do, and thus, various methods and devices for solving the problem have been researched and developed.

In this related prior art, in the Republic of Korea Utility Model Publication No. 20-2019-0000469, a bar-shaped body and; a pressing unit capable of applying a force capable of applying a force to the upper side of the main body in a vertical direction; An abutment separation device including a locking part provided on the lower side of the main body to pass through the small-diameter member penetrating the abutment with a small diameter and to be hooked on one end of the small-diameter member has been disclosed.

However, this conventional abutment separation device is difficult to separate because the user has to apply a significant force to separate the abutment from the fixture, or the fixture shakes left and right in the process of separating the abutment, Since there is a risk of damage to the surrounding alveolar bone of the fixture, there is a need for an apparatus or method capable of more stably separating the abutment.

Republic of Korea Public Utility Model No. 20-2019-0000469

It is an object of the present invention to provide an abutment removal device for an implant.

to achieve the above purpose

In one aspect of the present invention

An abutment removal device for separating and removing an abutment for an implant from a fixture,

It includes a rod-shaped cylinder having a through-hole formed therein,

the cylinder is

an introduction part disposed at one end of the cylinder and divided in the longitudinal direction;

a protrusion formed to protrude outside the introduction part;

a body part extending from the introduction part; and

An abutment removal device for implant is provided, comprising a; a coupling portion disposed at the other end of the cylinder and having a female screw formed on at least a portion of the inner wall.

In this case, the protrusion may be formed to protrude in a ring shape on the outside of the introduction part.

In addition, the protrusion may be fastened to one end of the abutment.

In addition, the outer diameter of the protrusion may be greater than the inner diameter of one end of the abutment.

Also, the introduction part may have elasticity in a direction of a central axis of the cylinder.

In addition, the introduction part may include a plurality of blocks divided in the longitudinal direction, and the plurality of blocks may be spaced apart from each other.

In addition, the introduction part may be divided into a first area from one end of the cylinder to an area in which the protrusion is formed and a second area from the area in which the protrusion is formed to an area connected to the body.

Also, inner diameters of the first region and the second region may be the same.

Also, the first region may have a taper shape inclined at a first angle with respect to the central axis.

In addition, the outer diameter of the second region may be the same as the outer diameter of the body portion.

In addition, the outer diameter of the introduction portion and the body portion of the cylinder may be smaller than the abutment through-hole.

In addition, the shaft of the insertion pin may prevent the introduction part from being elastically deformed in the central axis direction.

In addition, the coupling portion may include a holder seating portion on at least a portion of the outer wall.

In addition, the holder seating portion may have a shape in which an outer wall of the coupling portion is cut inward.

In addition, the abutment removal device for the implant may separate and remove the abutment from the fixture in a state in which the prosthesis and the abutment are adhered.

In addition, the abutment removal device for the implant may further include a mouth pin inserted into the through hole of the cylinder.

At this time, the insertion pin is

a contact portion formed at one end of the insertion pin;

a shaft extending from the contact portion and having an outer diameter greater than that of the contact portion; and

It may include a; is formed on one surface of the shaft and is screw-coupled to the female screw of the coupling part.

In addition, the shaft of the insertion pin may prevent the introduction part from being elastically deformed in the central axis direction.

In addition, the abutment removal device for implant may remove the abutment from the fixture by inserting the insertion pin into the through hole of the cylinder and then applying a rotational force to the insertion pin.

In addition, the insertion pin may further include a handle portion disposed on one surface of the male screw portion.

In addition, the abutment removal device for implant may be removed by separating the abutment for implant from the fixture by rotating the handle portion in the first direction.

In addition, the abutment removal device for the implant may further include a cylinder holder disposed on the holder seating portion of the cylinder to suppress rotation of the cylinder.

In the abutment removal apparatus for an implant of the present invention, in separating and removing the abutment from the fixture, no force is applied other than tension, so that the abutment can be stably separated and removed.

In addition, since it is possible to stably apply an adjustable force in the long axis direction, the abutment can be easily separated from the fixture without applying excessive force such as a pulling force or a torsion force.

In addition, the damaged abutment can be separated from the fixture and the undamaged abutment can be separated from the fixture without damage, so that the abutment separated from the fixture can be reused.

In addition, since the prosthesis and the abutment can be separated from the fixture without removing the prosthesis, the operation of separating the abutment from the fixture can be performed more easily, and thus the prosthesis and the abutment can be separated from the fixture. It can be used to detach the abutment from the fixture as needed for maintenance.

1 is a cross-sectional view of the cylinder of the abutment removal device for implants of the present invention,
Figure 2 is a side view of the cylinder of the abutment removal device for implants of the present invention,
3 is a schematic view showing a part of the introduction part of the cylinder of the abutment removal device for implants of the present invention,
Figure 4 is a schematic view showing the holder seating portion of the abutment removal device for implants of the present invention,
Figure 5 is a schematic view showing the insertion pin of the abutment removal device for implants of the present invention,
6 is a schematic view showing a cylinder and an insertion pin of the abutment removal device for implants of the present invention,
7 is a schematic view showing the cylinder holder of the abutment removal device for implants of the present invention,
8 is a schematic diagram showing a method of applying the abutment removal device for implants of the present invention to the abutment coupled to the fixture,
9 is a schematic view showing a state in which the cylinder of the abutment removal device for implants of the present invention is fastened to the abutment coupled to the fixture;
10 is a schematic view showing a state in which the insertion pin is inserted into the cylinder of the abutment removal device for implants of the present invention,
11 is a schematic diagram showing an enlarged portion A of FIG. 10,
12 is a schematic view showing a state in which the contact part is moved by rotating the insertion pin of the abutment removal device for implants of the present invention;
13 is a schematic view showing an enlarged portion B of FIG. 12,
14 is a schematic view showing a state in which the abutment is separated from the fixture by the abutment removal device for implants of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer description, and elements indicated by the same reference numerals in the drawings are the same elements. In addition, the same reference numerals are used throughout the drawings for parts having similar functions and functions. In addition, "including" a certain element throughout the specification means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

The abutment removal device for implant provided in one aspect of the present invention may be a device used to separate the abutment 10 coupled to the fixture 20 from the fixture 20 as shown in FIG. 8 . have.

In this case, the abutment 10 may include an upper portion to which the prosthesis is coupled, a lower portion to be coupled to the fixture, and an abutment hole 13 extending inside the upper and lower portions.

For example, as in FIG. 8 , the abutment 10 has a rhombus shape, a rhombus-shaped lower part including one end 12 , a rhombus-shaped upper part including the other end 11 , and the other end at one end 12 . It may include an abutment hole 13 extending up to (11). In addition, the diameter of the abutment hole 13 formed inside the abutment may be smaller at one end 12 than at the other end 11 of the abutment.

The fixture 20 has a hollow hole 23 for accommodating the abutment 10 therein, and the abutment 10 is inserted into the hollow hole of the fixture 20 to be coupled. Preferably, at least a portion of the lower portion of the abutment 10 may be inserted into and coupled to the hollow hole of the fixture 20, and at this time, one end 12 of the abutment 10 is It is coupled to be spaced apart from the bottom surface 21 of the fixture 20, and may be in a coupled state such that an inner hole 22 is formed between one end 12 of the abutment and the bottom surface 21 of the fixture. . In this case, the shape of the inner hole 22 may be a taper shape inclined in the direction of the central axis.

In addition, the abutment 10 is frictionally coupled to the hollow ball 23 of the fixture 20 due to the shape of the lower part of the abutment, that is, the tapered shape inclined at an angle of a certain range. can

Hereinafter, an abutment removal device for an implant provided in one aspect of the present invention will be described in detail with reference to the drawings.

Abutment removal device for implant provided in one aspect of the present invention

Including a cylinder 100 in the form of a rod having a through hole 150 formed therein,

The cylinder 100 is

an introduction part 110 disposed on one end 101 of the cylinder 100 and divided in the longitudinal direction;

a protrusion 120 protruding from the outside of the introduction part 110;

a body portion 130 extending from the introduction portion 110; and

It may include a; is disposed at the other end of the cylinder 100, the coupling portion 140 having a female screw 141 formed on at least a portion of the inner wall.

1 is a cross-sectional view of the cylinder 100, FIG. 2 is a side view of the cylinder 100, FIG. 3 is a schematic view showing a part of the introduction part 110 of the cylinder 100, and FIG. 4 is the cylinder ( 100) is a schematic diagram showing the coupling portion 140 and the holder seating portion 142.

1, the cylinder 100 includes an introduction part 110, a protrusion 120 protruding from the outside of the introduction part, and a body part 130 extending from the introduction part 110, and one end ( 101 ) and a through hole 150 extending from the other end 102 .

External diameters of the introduction part 110 , the protrusion part 120 , and the body part 130 are smaller than the diameter of the abutment hole 13 of the abutment, and thus may be inserted into the abutment hole 13 . .

The outer diameters of the introduction part 110 , the protrusion part 120 , and the body part 130 may be preferably 1.4 to 3.7 mm.

The cylinder 100 includes an introduction part 110 in the form of being divided in the longitudinal direction at one end 101 .

The introduction part 110 may have elasticity.

The introduction part 110 may be divided in the longitudinal direction, and may include a plurality of blocks 113 , and the plurality of blocks 113 may be spaced apart from each other. Accordingly, the introduction part 110 may include a hole 114 formed between the plurality of blocks 113 , and the introduction part 110 is formed by the divided shape and the hole 114 formed between the blocks. It may be elastically deformed in the central axis direction.

In this case, the plurality of blocks 113 may have the same length, but is not limited thereto.

In addition, the introduction part 110 is connected to the body part 120 from the first area 111 from the end 101 of the cylinder to the area where the protrusion 120 is formed and the area where the protrusion 120 is formed. It may be divided into a second area 112 up to the area to be used.

The size of the through hole 150 formed inside the first region 111 and the second region 112 of the introduction part 110 may be the same, and preferably, the first region ( 111), the second region 112, and the through-hole 150 formed in the body 130 may have the same diameter.

The diameter of the through hole 150 formed in the first region 111 , the second region 112 , and the body 130 may be preferably 0.5 to 3.0 mm.

For example, the diameter of the through hole 150 formed in the first region 111 , the second region 112 , and the body part 130 of the introduction part 110 may be 1.5 mm.

The first region 111 of the introduction part 110 may have a tapered shape inclined at a first angle in the central axis direction, and the cylinder 100 may attach the protrusion part 120 to one end of the abutment. The first area 111 of the introduction part 110 inclined at a first angle after fastening to the outside of the can be arranged in the inner hole 22 of the fixture 20 inclined at a second angle. In this case, the first angle may be the same as or greater than the second angle, and may preferably be an angle of 10 to 45°.

The protrusion 120 is a configuration for fastening the cylinder 100 to the abutment 10 , and is configured to protrude outside the introduction part 110 .

The shape of the protrusion may be a ring shape, but the shape is not limited thereto, and various shapes such as a divided band shape and an uneven shape may be applied.

The outer diameter of the protrusion 120 may be greater than the inner diameter of the one end 12 of the abutment, that is, the diameter of the abutment hole 13 formed in the one end 12 of the abutment, preferably It may be 1.4 mm to 3.7 mm.

After the introduction part 110 of the cylinder 100 is inserted into the through hole 13 of the other end 11 of the abutment, the abutment penetrates from the other end 11 to the one end 12 of the abutment. As the size of the hole 13 decreases, it may be contracted and deformed by elasticity.

Accordingly, after the user inserts the cylinder 100 into the abutment hole 13 formed in the other end 11 of the abutment, the introduction part 110 is contracted and deformed by applying a force of at least a certain amount, and the abutment It can pass through one end 12 of the treatment.

In addition, the elastic deformation of the introduction part 110 passing through the abutment end 12 may be restored.

The outer diameter of the second region 112 of the body portion and the introduction portion 110 of the cylinder 100 is smaller than the abutment hole 13 , and the second portion of the body portion and the introduction portion 110 of the cylinder 100 is smaller than that of the abutment hole 13 . The region 112 is freely movable through the abutment hole 13 , while the outer diameter of the protrusion 120 is larger than the abutment hole 13 formed in the abutment end 12 , so that the abutment hole 13 is formed in the abutment hole 13 . The first region of the introduction part 110 and the protrusion 120 passing through the end end 12 of the abutment are not reintroduced into the through hole 13 of the abutment, but are outside the one end 13 of the abutment. is concluded

In this case, the outer diameter of the second region 112 and the body portion 130 of the introduction part 110 may be 1.0 mm to 3.0 mm, and the outer diameter of the protrusion part 120 may be 1.4 mm to 3.7 mm. For example, an outer diameter of the second region 112 and the body 130 of the introduction part 110 may be 1.95 mm, and the outer diameter of the protrusion 120 may be 2.27 mm.

The cylinder 100 includes a coupling portion 140 disposed at the other end.

The coupling portion 140 may have an outer diameter greater than that of the body portion 130 , and preferably have an outer diameter of 3 to 6 mm. For example, the coupling portion may have an outer diameter of 4.5 mm.

The diameter of the through hole 150 formed inside the coupling part 140 may be larger than the diameter of the through hole 150 formed inside the body part 130 and the introduction part 110 . This is that the through hole 150 formed on the inside of the coupling part 140 accommodates the male screw part 230 of the insertion pin 200 , and the male screw part 230 of the insertion pin 200 is formed on at least a part of the inner wall of the inner wall. A female screw 141 that is screwed with may be formed.

Accordingly, the inner wall of the coupling portion 140 may include a first inner wall in which the female screw 141 is formed and a second inner wall in which the female screw 141 is not formed, preferably as shown in FIG. 2 , The female screw 141 may be formed on the second inner wall in contact with the other end 102 of the cylinder 100 .

The coupling part 140 may include a holder seating part on at least a portion of an outer wall of the coupling part 140 . The holder seating part 142 may have a shape in which an outer wall of the coupling part is cut inward. The holder seating part 120 may be configured to seat a means for preventing rotation of the cylinder 100 , for example, a clamp or the like.

4 is a schematic view showing the shape of the cylinder 100 of FIG. 2 as viewed in the direction of the other end 102 side, as shown in FIG. In a shape, for example, the coupling part 140 may be cylindrical, and the holder seating part 142 may be cut to form two smooth surfaces facing some of the cylindrical side surfaces. . The cylinder holder 300 may be seated on the holder mounting part 142 .

The abutment removal device for implants of the present invention may further include an insertion pin 200 inserted into the through hole of the cylinder.

5 is an embodiment of the insertion pin 200, the insertion pin 200 is

a contact portion 210 formed at one end of the insertion pin 200;

a shaft 220 extending from the contact portion 210 and having an outer diameter greater than that of the contact portion 210; and

It may include a; is formed on one surface of the shaft 220 and is screw-coupled to the female screw 141 of the coupling unit 140 .

The abutment removal device for implants of the present invention may rotate the insertion pin 200 in a first direction to screw the male screw portion 230 of the insertion pin to the female screw 141, and the male screw portion ( 230 ) may be inserted into the through hole formed inside the coupling part 140 . In this case, the first direction may be a clockwise direction for screwing the male screw part 230 to the female screw 141 .

5 is a schematic diagram illustrating an embodiment of the insertion pin 200 , and FIG. 6 is a schematic diagram illustrating the cylinder 100 and the insertion pin 200 .

Meanwhile, the insertion pin 200 may include a contact part 210 , a shaft 220 , and a male screw part 230 , and the insertion pin 200 is a handle part disposed on one surface of the male screw part 230 . (240) may be further included.

In this case, the contact portion 210 may have an outer diameter of 0.5 mm to 3.0 mm and a length of 1 mm to 4 mm, and the shaft 220 may have an outer diameter of 0.5 to 3.0 mm and a length of 4 to 50 mm, and the number The threaded portion 230 may have an outer diameter of 1.4 mm to 4.5 mm and a length of 2 mm to 10 mm.

For example, the contact portion 120 may have an outer diameter of 1.0 mm and a length of 3.5 mm, the shaft 220 may have an outer diameter of 1.4 mm and a length of 39.35 mm, and the male threaded portion 230 may have a length of 39.35 mm. It may have an outer diameter of 1.9 mm and a length of 4.65 mm.

The insertion pin 200 is a means for applying tension between the abutment 10 and the fixture 20 , and the contact portion 210 may be in contact with the hollow bottom surface 21 of the fixture 210 .

For example, after the cylinder 100 is fastened with the abutment 10 , the insertion pin 200 may be inserted into the through hole 150 of the cylinder 100 , and in this case, the insertion pin ( By rotating 200) in the first direction, the male threaded part 230 of the insertion pin 200 can be screwed with the female threaded part 141 of the cylinder 100, and the contact part 210 can be connected to the fixture ( It can be moved so as to be in contact with the bottom surface 21 of the hollow tool 210).

In the abutment removal device for implants of the present invention, by rotating the insertion pin 200 in the first direction in a state in which the contact portion 210 is in contact with the bottom surface 21 of the fixture 210, the abutment ( 10) and the fixture 20 can be made to generate a tension, and as the tension increases, the insertion pin 200, the cylinder 100 screwed with the pin 200, and the cylinder ( The abutment 10 fastened to the protrusion 120 of the 100 may be separated from the fixture 20 .

In addition, in a state in which the contact portion 210 is in contact with the bottom surface 21 of the fixture 210 , the shaft 220 of the insertion pin 200 extended from the contact portion 210 is the introduction portion of the cylinder 100 . (110) is located inside, and through this, it is possible to prevent the introduction part 110 and the protrusion part 120 of the cylinder 100 from being contracted in the central axis direction by the tension, so that the cylinder 100 and the abutment It can be prevented that the fastening of the ment is not released.

Accordingly, the abutment removal device for implant provided in one aspect of the present invention can stably apply a force in the long axis direction by applying a rotational force to the insertion pin 200, so that the abutment can be easily separated from the fixture can be removed

The abutment removal device for implants of the present invention may further include a cylinder holder (300).

7 is a schematic view showing an example of the cylinder holder 300, in which the cylinder holder 300 rotates the insertion pin 200 in a first direction so that the male screw part 230 of the insertion pin is connected to the female screw 141 ) may be a means for suppressing rotation of the cylinder 100 including the female screw 141 when screwed to the rotation direction of the insertion pin 200 , that is, in the first direction.

The cylinder holder 300 may include a head part 301 , and when the insertion pin 200 rotates by sandwiching the head part 301 with the outer wall of the coupling part 140 , the coupling part It is possible to suppress the cylinder 100 including 140 from rotating in the same direction as the insertion pin 200, that is, in the first direction, and through this, the male screw part 230 of the insertion pin 200 can be It may be screwed to the female screw 141 .

The insertion pin 200 of the abutment removal device for implants of the present invention may further include a handle portion 240 disposed on one surface of the male screw portion 230, and the handle portion rotates in a first direction. In this way, the abutment 10 can be easily separated and removed from the fixture 20 .

In addition, the abutment removal device for implants provided in one aspect of the present invention may separate and remove the abutment to which the prosthesis is coupled from the fixture.

As an example, the cylinder 100 can be inserted into the through-hole of the abutment through the through-hole of the screw-cement retained prosthesis (SCRP), so that the prosthesis and the abutment can be inserted in the same manner as described above. , More specifically, the screw-cement retained prosthesis (SCRP) and the abutment may be separated and removed from the fixture while the abutment is adhered.

One embodiment of a method for removing an abutment from a fixture using the abutment removal device for implants of the present invention is,

Insert the cylinder 100 into the through hole of the abutment 2 fixed to the fixture 1 and pressurize the protrusion 120 of the cylinder 100 to the outside of one end of the abutment 2 . fastening to;

inserting the insertion pin 200 into the through hole 150 of the cylinder 100; and

Separating and removing the abutment from the fixture by rotating the insertion pin 200 in the first direction; may be performed.

Hereinafter, an embodiment of a method of removing an abutment from a fixture using the abutment removal apparatus for an implant of the present invention will be described in detail step by step with reference to the drawings.

First, as shown in FIG. 9 , the cylinder 100 is inserted into the abutment hole 13 of the abutment 10 fixed to the fixture 20 and pressurized to the protrusion of the cylinder 100 . (120) may be fastened to the outside of the one end (12) of the abutment (10).

In this case, the abutment 10 may be in a state in which the prosthesis 30 is adhesively coupled as shown in FIG. 9 .

The prosthesis 30 is preferably a screw-cement retained prosthesis (SCRP), and the cylinder 100 may be inserted through a through hole formed inside the prosthesis and the abutment. .

Accordingly, the abutment removal device for implants of the present invention removes the prosthesis and the abutment, more specifically, the screw-cement retained prosthesis (SCRP) and the abutment in a state in which the abutment is attached. It can be separated and removed from the fixture.

The outer diameters of the introduction part 110 and the body part 130 of the cylinder 100 are smaller than the diameter of the abutment hole 13 formed inside the abutment 20, so that the abutment hole 13 can be inserted through

The introduction part 110 of the cylinder has elasticity, and the outer diameter of the protrusion part 120 of the cylinder 100 is larger than the diameter of the abutment hole 13, and is inserted through the abutment hole 13. As the diameter of the abutment hole 13 decreases, the introduction part 110 of the cylinder may be elastically deformed and contracted in the direction of the central axis of the cylinder. 110 may pass through one end 12 of the abutment.

In addition, the elastic deformation of the introduction part 110 passing through the one end 12 of the abutment is restored, and the outer diameter of the protrusion part 120 of the introduction part 110 is larger than the diameter of the abutment hole 13 . Therefore, the protrusion 120 may not be reintroduced into the through hole of the cylinder 100 and may be fastened to the outside of the one end 12 of the abutment.

The introduction part 110 includes a first area 111 from one end 101 of the cylinder to the area where the protrusion 120 is formed, and an area connected to the body 120 from the area where the protrusion 120 is formed. It can be divided into a second region 112 up to, and thus, after the fastening, the first region 111 of the protrusion 120 and the introduction part 110 is the one end 12 of the abutment and the fixture. It may be disposed in the inner hole 22 formed between the bottom surfaces 21 of the hollow tool, and the second region 112 may be located inside the abutment.

Next, as shown in FIGS. 10 and 11 , the insertion pin 200 may be inserted into the through hole 150 of the cylinder 100 .

The insertion pin 200 may include a contact part 210 , a shaft 220 , and a male screw part 230 , and the insertion pin 200 is a handle part 240 disposed on one surface of the male screw part 230 . ) may be further included.

The outer diameter of the contact portion 210 and the shaft 220 of the insertion pin 200 is smaller than the through hole 150 of the cylinder 100 so that the insertion pin 200 can be inserted through the through hole 150 . and the contact part 210 may be located inside the introduction part 110 of the cylinder 100 , and the shaft 220 is located inside the body part 130 and the coupling part of the cylinder 100 . can be

Next, the abutment may be separated and removed from the fixture by rotating the insertion pin 200 in the first direction.

The step may be a step of separating and removing the abutment from the fixture by applying tension between the fixture and the abutment with a rotational force for rotating the insertion pin 200 .

The step is

rotating the insertion pin 200 in a first direction to bring the contact portion 210 into contact with the hollow bottom surface 21 of the fixture 20;

applying tension between the abutment and the fixture by rotating the insertion pin 200 in a first direction while the contact portion 210 is in contact with the hollow bottom surface 21; and

Separating and removing the abutment from the fixture 20 by the tension; may include.

That is, as in FIGS. 12 and 13 , by rotating the insertion pin 200 in the first direction, the male screw part 230 of the insertion pin 200 is the female screw 141 of the cylinder coupling part 140 . and may be screwed, and the contact portion 210 of the insertion pin 200 may be moved to contact the bottom surface 21 of the fixture 20 .

14, by further rotating the insertion pin 200 in the first direction in a state where the contact portion 210 of the insertion pin 200 is in contact with the hollow bottom surface 21 of the fixture. The contact portion 210 of the insertion pin 200 pushes the hollow bottom surface 21 of the fixture, thereby generating tension between the fixture and the insertion pin 200 .

At this time, the insertion pin 200 is screwed to the cylinder 100, and the cylinder 100 is coupled to the abutment, so that the tension is generated between the fixture and the abutment, The abutment 10 may be separated and removed from the fixture 20 .

In addition, at this time, at least a portion of the shaft 220 of the insertion pin 200 is disposed inside the introduction part 110 of the cylinder, so that the introduction part 110 is elastically deformed in the direction of the central axis of the cylinder by the tension. can be prevented

Accordingly, the tension may be used to separate and remove the abutment 10 frictionally coupled to the fixture 20 from the fixture 20 .

As described above, the abutment removal device of the present invention rotates the insertion pin 200 to generate tension between the abutment 10 and the fixture 20, thereby removing the abutment 10. It can be stably separated and removed from the fixture 20 .

At this time, the insertion pin 200 may further include a handle portion 240 disposed on one surface of the male screw portion 230, and the insertion pin 200 in a direction to rotate the handle portion in the first direction. It can be rotated in the first direction.

In addition, the rotation may be performed by the user's hand, but may be performed using other tools such as a spanner or a wrench.

In addition, during the rotation, by using a mechanism for fixing the cylinder, such as the cylinder holder 300 or a clamp, the cylinder 100 may assist not to rotate in the same direction along the insertion pin 200 . have.

For example, by rotating the insertion pin 200 in the first direction after placing the cylinder holder 300 or a clamp on the holder seating part 160 of the cylinder 100, the rotational force caused by the rotation is increased. It can be converted into tension between the abutment 10 and the fixture 20 .

Through the above method, the abutment removal device of the present invention can easily separate and remove the abutment from the fixture, and can stably apply an adjustable force in the long axis direction, so that excessive force such as pulling force, torsion force, etc. The abutment can be easily separated from the fixture without applying

In addition, in the state where the abutment and the prosthesis are attached, the abutment combined with the prosthesis can be separated from the fixture without removing the prosthesis, so that not only the damaged abutment can be separated from the fixture but also the undamaged abutment can be removed. It can be removed from fixtures without damage and can be used to maintain prostheses and abutments.

The abutment removal device of the present invention can be used when separating the abutment from the fixture in order to apply an adhesive between the prosthesis and the abutment, and when trying to separate the prosthesis from the oral cavity for maintenance of the prosthesis The abutment and the prosthesis may be separated from the fixture without separating the adhesion between the prosthesis and the abutment.

10: abutment
11: The other end of the abutment
12: One end of the abutment
13: abutment through hole
20: fixture
21: the bottom surface of the hollow tool of the fixture
22: fixture inner hole
23: fixture hollow tool
30: prosthesis
100: cylinder
101: one end of the cylinder
102: the other end of the cylinder
110: Introduction
111: first area
112: second area
113: block
114: Hall
120: protrusion
130: body part
140: coupling part
141: female thread
142: holder seating portion
150: through hole
200: insert pin
210: contact
220: shaft
230: male thread part
240: handle part
300: cylinder holder
301: head of the cylinder holder

Claims (20)

An abutment removal device for separating and removing an abutment for an implant from a fixture,
Includes; rod-shaped cylinder having a through-hole formed therein;
the cylinder is
an introduction part disposed at one end of the cylinder and divided in the longitudinal direction;
a protrusion formed to protrude outside the introduction part;
a body part extending from the introduction part; and
Abutment removal device for implant, comprising a; is disposed at the other end of the cylinder, the coupling portion is formed with a female screw on at least a portion of the inner wall.
The method of claim 1,
The abutment removal device for implant, characterized in that the protrusion is formed to protrude in the form of a ring on the outside of the introduction part.
The method of claim 1,
The abutment removal device for implant, characterized in that the protrusion is fastened to one end of the abutment.
The method of claim 1,
The abutment removal device for implants, characterized in that the outer diameter of the protrusion is greater than the inner diameter of one end of the abutment.
The method of claim 1,
The abutment removal device for implant, characterized in that the introduction part has elasticity in the central axis direction of the cylinder.
The method of claim 1,
The introduction portion includes a plurality of blocks divided in the longitudinal direction, the abutment removal device for implants, characterized in that the plurality of blocks are spaced apart from each other.
The method of claim 1,
The abutment removal for implant, characterized in that the introduction portion is divided into a first area from one end of the cylinder to the area where the protrusion is formed and a second area from the area where the protrusion is formed to the area connected to the body part. Device.
8. The method of claim 7,
The abutment removal device for implant, characterized in that the first region is in the form of a taper inclined at a first angle to the central axis.
8. The method of claim 7,
The abutment removal device for implant, characterized in that the inner diameter of the first region and the second region are the same.
The method of claim 1,
The abutment removal device for implant, characterized in that the outer diameter of the introduction portion and the body portion of the cylinder is smaller than the abutment through hole.
The method of claim 1,
The abutment removal device for implant, characterized in that it comprises a; the coupling portion;
12. The method of claim 11,
The abutment removal device for implant, characterized in that the holder seating portion is in the form of an outer wall of the coupling portion cut inward.
The method of claim 1,
The abutment removal device for implant is an abutment removal device for implant, characterized in that for separating and removing the abutment from the fixture in a state in which the prosthesis and the abutment are combined.
The method of claim 1,
The abutment removal device for an implant further comprises a mouth pin inserted into the through hole of the cylinder.
15. The method of claim 14,
The insertion pin is
a contact portion formed at one end of the insertion pin;
a shaft extending from the contact portion and having an outer diameter greater than that of the contact portion; and
An abutment removal device for implant comprising a; male screw portion formed on one surface of the shaft and screw-coupled to the female screw of the coupling portion.
16. The method of claim 15,
The abutment removal device for implant, characterized in that the shaft of the insertion pin prevents the introduction part from being elastically deformed in the central axis direction.
16. The method of claim 15,
The abutment removal device for implant is an abutment removal device for implant, characterized in that after inserting the insertion pin into the through hole of the cylinder, applying a rotational force to the insertion pin to separate and remove the abutment from the fixture.
16. The method of claim 15,
The insertion pin is an abutment removal device for implant, characterized in that it further comprises;
16. The method of claim 15,
The abutment removal device for implants is an abutment removal device for implants, characterized in that for separating and removing the abutment for implants from the fixture by rotating the handle portion in the first direction.
The method of claim 1,
The abutment removal device for implant is disposed in the holder seating portion of the cylinder, the abutment removal device for implant, characterized in that it further comprises a cylinder holder to suppress the rotation of the cylinder.

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