KR102254406B1 - Impactor for practicing medical operation - Google Patents

Abstract

The present invention includes a housing having an inner space and extending along a longitudinal direction; A tip inserted and fixed into the inner space and extending to the outside of the housing; A triggering button disposed in the inner space so as to be operable to be pressed; An impact unit including a shaft disposed in the inner space, and an elastic oscillation member for oscillating the shaft to impact the tip while elastically extending along the longitudinal direction as the triggering button is pressed; And a force control unit that is operatively coupled to the housing and includes a compression operation unit configured to change the compression amount of the elastic oscillation member to adjust the force to oscillate the shaft.

Description

Impactor for medical treatment {IMPACTOR FOR PRACTICING MEDICAL OPERATION}

The present invention relates to an impactor used in a medical procedure.

In general, when there is no tooth, there are many cases where an implant is fixed in the bone inside the gum and an artificial tooth is applied on the upper portion thereof.

The implant is placed according to the environment in which the original tooth is located and its own state (eg, the state of the bone in the corresponding part, the relationship with other teeth, the orientation of the original tooth, the size of the original tooth, etc.).

Among the detailed configurations of these implants, it is common that the fixture is screwed to the alveolar bone. The abutment may be screwed into such a fixture, but depending on its shape, it may also be cemented. An artificial tooth is inserted on the upper part of this abutment.

The artificial tooth is forced into the abutment. For such force-fitting, a device for impacting an artificial tooth is used.

However, there is a problem with the apparatus in which the operator cannot control the degree of impact. In addition, there is a problem that it is inconvenient for the operator to reuse it several times.

An object of the present invention is to provide an impactor for a medical procedure, which enables a practitioner to adjust the amount of impact in a simple manner in consideration of the operating environment of the practitioner.

Another object of the present invention is to provide an impactor for medical treatment, which enables a surgeon to apply an impact to an object through a simple operation and restore it to a state in which the impact can be applied again.

An impactor for a medical procedure according to an aspect of the present invention for realizing the above object includes a housing having an inner space and extending along a length direction; A tip inserted and fixed into the inner space and extending to the outside of the housing; A triggering button disposed in the inner space so as to be operable to be pressed; An impact unit including a shaft disposed in the inner space, and an elastic oscillation member for oscillating the shaft to impact the tip while elastically extending along the longitudinal direction as the triggering button is pressed; And a force control unit that is operatively coupled to the housing and includes a compression operation unit configured to change a compression amount of the elastic oscillation member to adjust a force to oscillate the shaft.

Here, the shaft includes a rod disposed along the longitudinal direction so as to correspond to the tip; And a flange protruding from the rod in a radial direction, wherein the elastic oscillation member includes a coil spring accommodating the rod and supported at one end of the flange, and the compression operation unit is movable to the housing. It is coupled, and the degree to which the coil spring is pressed against the flange may be changed according to its movement.

Here, the compression control unit may be screwed to the housing and rotated about a central axis of the housing to move along the longitudinal direction.

Here, the housing includes: a coupling jaw formed on an end side of an inner circumferential surface defining the inner space; And a female thread formed on the inner circumferential surface of the region beyond the coupling jaw, wherein the compression control unit has a coupling hook coupled to the coupling jaw, and a control wheel that is rotatably disposed about a central axis of the housing. ; And a rotating member having a male thread screwed to the female thread and rotating according to the rotation of the operation wheel.

Here, the operation wheel may further include a receiving groove extending along the longitudinal direction, and the rotating member may further include a locking protrusion slidingly inserted into the receiving groove as it is inserted into the operation wheel. .

Here, the housing further includes a window that communicates the inner space with the outside and extends along the longitudinal direction, and the force control unit includes a display protrusion exposed to the outside through the window, and the coil It may further include a compression display unit supported by the compression operation unit while supporting the other end of the spring.

An impactor for a medical procedure according to another aspect of the present invention includes first to third internal spaces that are in communication with each other and are sequentially arranged along a length direction, and an insertion groove that is opened to the outside corresponding to the second internal space. A housing; A tip inserted into the first inner space and fixed to the housing, and an end facing the second inner space having a closed shape; A body disposed to be movable between a first position and a second position along a crossing direction crossing the longitudinal direction in the second inner space, and a limiting pin inserted into the insertion groove and extending into the second inner space, A triggering button concave on an outer surface of the body to receive the limit pin and having a limiting groove for restricting the body to the second inner space together with the limiting pin; And a shaft disposed in the third inner space along the longitudinal direction, and elastically compressed by moving the shaft away from the second inner space, and the triggering button is moved from the first position to the second position. It may include an impact unit having an elastic oscillation member for oscillating the shaft toward the first inner space so as to impact the tip while being elastically extended along the longitudinal direction as it is moved to.

Here, the body may include a through hole through which the shaft oscillates along the longitudinal direction at the second position.

Here, the shaft includes: a rod having a small diameter portion and a large diameter portion having a larger diameter than the small diameter portion; And a flange protruding in a radial direction from an end of the large-diameter portion connected to the small-diameter portion, wherein the elastic oscillation member includes a coil spring receiving the large-diameter portion and supported at one end of the flange, and the passage hole Silver may have a size that passes through the small diameter portion but does not pass through the large diameter portion.

Here, the third inner space, a large space in which the flange and the large diameter portion are located; And a small space located between the second inner space and the large space, blocking the flange and passing the small diameter portion.

Here, a force control unit may be further provided that is operatively coupled to the housing and includes a compression control unit for varying a compression amount of the elastic oscillation member in order to adjust the force to oscillate the shaft.

Here, the compression control unit is inserted into the third inner space and is movably coupled to the housing, so that the degree of pressing the coil spring against the flange may vary according to the movement along the longitudinal direction.

Here, the housing may further include a coupling member installed in the first inner space and configured to be coupled to the housing by inserting the tip into the first inner space.

Here, the coupling member may include an O-ring elastically compressing and fixing the tip so as to allow separation only when the tip is pulled with a force of a predetermined level or higher when the tip is replaced.

According to the impactor for medical treatment according to the present invention configured as described above, the tip installed in the housing is impacted by the shaft elastically oscillated by the elastic oscillation member of the impact unit to transmit the impact amount to the object. It can be adjusted by changing the compression amount of the elastic oscillation member by the compression control unit of the force control unit. Accordingly, the operator can adjust the amount of impact applied to the object, such as an artificial tooth, in consideration of the operator's operating environment.

In addition, the tip installed in the housing is impacted by the shaft elastically oscillated by the elastic oscillation member of the impact unit to transmit the amount of impact to the object, and the elastic oscillation member is operated by the operator's manipulation of the triggering button. Here, the triggering button is constrained to the second internal space by the limiting pin and the limiting groove, and can be easily restored to its original state after manipulation. Thereby, the operator can repeatedly operate the impactor and avoid the hassle of having to newly set the impactor each time.

1 is an assembled perspective view of an impactor 100 for medical treatment according to an embodiment of the present invention.
2 is an exploded perspective view of the impactor 100 for medical treatment of FIG. 1.
3 is an enlarged perspective view of the triggering button 150 of FIG. 2.
4 is an exploded perspective view illustrating a coupling relationship between the housing 110 and the force control unit 190 of FIG. 2.
5 is a cross-sectional view of the impactor 100 for medical treatment taken along the line (V-V) of FIG. 1.
6 is a cross-sectional view showing another state of the impactor 100 for medical treatment of FIG. 5.
7 is a cross-sectional view showing a medical treatment impactor 100 ′ according to a modified example of the medical treatment impactor 100 of FIG. 6.

Hereinafter, an impactor for medical treatment according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this specification, the same/similar reference numerals are assigned to the same/similar configurations even in different embodiments, and the description is replaced with the first description.

1 is an assembled perspective view of an impactor 100 for medical treatment according to an embodiment of the present invention.

Referring to the drawing, the medical treatment impactor 100 may include a housing 110, a tip 130, a triggering button 150, an impact unit 170, and a force control unit 190. .

The housing 110 is formed to extend along the length direction L. The housing 110 may be a hollow body having an inner space 111, 112, 113 (refer to FIG. 5).

The tip 130 is inserted and fixed in the inner space of the housing 110. The tip 130, in this drawing, is fixed to the left side of the housing 110 and extends to the outside of the housing 110. The tip 130 is a part that strikes the artificial tooth (object) while the artificial tooth is placed on the abutment.

The triggering button 150 may be disposed in an inner space of the housing 110 to be press-operable. To this end, the upper portion of the triggering button 150 may be positioned to protrude upward from the housing 110. In addition, the triggering button 150 may be located close to the tip 130.

The impact unit 170 is configured to oscillate along the length direction (L) to impact the tip 130. The impact unit 170 is disposed in the inner space of the housing 110 and is configured to oscillate when the triggering button 150 is pressed.

The force adjustment unit 190 is a component for adjusting the force that the impact unit 170 impacts the tip 130. To this end, the force adjustment unit 190 is operatively coupled to the housing 110. In this drawing, the force control unit 190 may be installed on the opposite side of the end of the housing 110 to which the tip 130 is installed. The force adjustment unit 190 may not be adopted in the impactor, if necessary.

According to this configuration, the operator can pull the impact unit 170 in a direction away from the tip 130 in the length direction L to make it ready for oscillation. In that state, when the operator presses the triggering button 150, the impact unit 170 oscillates toward the tip 130 along the longitudinal direction L. When the impact unit 170 impacts the tip 130, the end exposed to the tip 130 transmits the impact to the object.

During this process, the operator may control the force that the impact unit 170 strikes the object through the tip 130 by manipulating the force control unit 190 according to the conceived state of the person to be treated or the state of the implant. In addition, since the triggering button 150 is restored to its original position after the triggering button 150 is pressed, it becomes easy to continuously perform the operation of oscillating the impact unit 170.

The detailed configuration of the above medical treatment impactor 100 will be described with reference to FIGS. 2 to 4.

2 is an exploded perspective view of the medical treatment impactor 100 of FIG. 1, FIG. 3 is an enlarged perspective view of the triggering button 150 of FIG. 2, and FIG. 4 is a housing 110 and force control of FIG. It is an exploded perspective view for explaining the coupling relationship between the units 190.

Referring to the drawings, a second inner space 112, an insertion groove 114, and a coupling member 119 may be located on the left side of the housing 110. The triggering button 150 is inserted and installed in the second inner space 112. To this end, the second inner space 112 extends along the crossing direction V crossing the length direction L, and may have a shape in communication with the outside. The insertion groove 114 may be formed along a horizontal direction (H) approximately perpendicular to the crossing direction (V). The insertion groove 114 may be formed in a position corresponding to the second inner space 112 so as to face the triggering button 150. The coupling member 119 is installed in the first inner space 111 (FIG. 5), and the tip 130 is coupled to the housing 110 as it is inserted therein. The coupling member 119 may be a rubber O-ring having a hollow portion into which the tip 130 is forcibly fitted. Since the coupling member 119 is formed in a ring shape of an elastic material, a process of inserting or removing the tip 130 into the first inner space 111 can be performed simply in a one-touch manner. Thereby, in the process of inserting or removing the tip 130, a force of a certain level or more to which the O-ring is elastically deformed may be applied to the tip 130.

The right side of the housing 110 has a third inner space 113. On the side of the third inner space 113, the housing 110 may have a locking projection 115, a female thread 116, an insertion groove 117, and a window 118. When the locking projection 115 is formed at the right end of the housing 110, it may have a ring shape. The female thread 116 may be formed in a region beyond the locking protrusion 115 on the inner circumferential surface of the housing 110 defining the third internal space 113. The insertion groove 117 is formed to extend in the longitudinal direction L across the locking protrusion 115 and the female thread 116. The insertion groove 117 may be formed in a pair, one of which may be formed corresponding to the window 118. The window 118 is configured to be opened to communicate the third inner space 113 with the outside. The window 118 may be formed to extend along the length direction (L).

The tip 130 may be composed of an insertion part 131 and a contact part 135. The insertion portion 131 is a portion inserted into the first inner space 111 and coupled to the housing 110 by the coupling member 119. The insertion part 131, at least an end facing the second inner space 112, may have a closed shape. The contact part 135 is configured to be in contact with the object and transmit an impact to the object. The insertion part 131 and the contact part 135 may be disposed so that their central axes are spaced apart from each other. So, an inclined connection part 139 may be formed between them. By this inclined connection part 139, it becomes easy for the operator to operate the triggering button 150 outside the oral cavity while the tip 130 is inserted into the oral cavity of the person to be treated.

The triggering button 150 may include a body 151, a through hole 152, an elastic support member 153, a restriction groove 155, and a restriction pin 156. The body 151 may have a shape accommodated in the second inner space 112. The through hole 152 may be formed extending along the longitudinal direction L in the center of the body 151. The elastic support member 153 may be a spring that elastically supports the body 151 from the lower side. The spring may be supported on an inner circumferential surface defining the second inner space 112 of the housing 110. Thereby, the body 151 can be elastically moved between the highest first position and the lowest second position along the crossing direction (V). The restriction groove 155 is positioned corresponding to the insertion groove 114 on the outer surface of the body 151. The restriction pin 156 inserted into the restriction groove 155 extends into the restriction groove 155 while being inserted and installed in the insertion groove 114. Here, the limiting groove 155 has a width that can be moved relative to the limiting pin 156 in the crossing direction (V). The body 151 is constrained thereto so as not to deviate from the second inner space 112 by the limiting groove 155 and the limiting pin 156. Further, the body 151 is pushed from the first position to the second position by the elastic support member 153 and then returns to the first position.

The impact unit 170 may have a shaft 171 and an elastic oscillation member 176.

The shaft 171 is disposed along the length direction L in the third inner space 113 in a standby state for oscillation. The shaft 171 may specifically have a rod 172, a flange 173, a fastening screw 174, and a handle 175. The rod 172 is positioned at a height corresponding to the tip 130, specifically the insertion part 131. The rod 172 may have portions having different outer diameters as a whole, that is, a small-diameter portion 172a and a large-diameter portion 172b. The small-diameter portion 172a may be positioned on a side corresponding to the insertion portion 131 of the tip 130, and the large-diameter portion 172b may be positioned on the opposite side thereof. The flange 173 may be formed extending radially from an end facing the small-diameter portion 172a of the large-diameter portion 172b. The fastening screw thread 174 is formed on the free end side of the large diameter portion 172b, and may be screwed with the handle 175. The handle 175 is located outside the housing 110 and becomes a part that the operator pulls the impact unit 170 in a direction away from the tip 130 in the hand.

The elastic oscillation member 176 may be a coil spring accommodating the rod 172. The coil spring may specifically accommodate the large diameter portion 172b. One end of the coil spring is supported by a flange (173). The elastic oscillation member 176 is elastically compressed as the shaft 171 moves in a direction away from the second inner space 112, and the triggering button 150 is moved from the first position to the second position. It can be elastically stretched accordingly. In the latter case, the elastic oscillation member 176 causes the shaft 171 to oscillate along the longitudinal direction L so that the shaft 171 impacts the tip 130.

The force control unit 190 may have a compression operation unit 191 and a compression display unit 195.

The compression operation unit 191 is movably coupled to the housing 110, specifically the third inner space 113, so that the degree of pressing the coil spring against the flange 173 is different. In other words, the force control unit 190 controls the amount of compression of the elastic oscillation member 176. The compression operation unit 191 may have an operation wheel 192 and a rotation member 193. The operation wheel 192 has a configuration in which the inside is opened toward the rotating member 193. A coupling hook 192a and a receiving groove 192b may be formed on the inner circumferential surface of the operation wheel 192. The coupling hook 192a is caught by the coupling jaw 115 of the housing 110 so that the operation wheel 192 is connected to the housing 110. The receiving groove 192b may extend along the length direction L. The rotating member 193 may have a locking protrusion 193a and a male thread 193b. The locking protrusion 193a is slidingly inserted into the receiving groove 192b when the rotating member 193 is inserted into the operation wheel 192. When the operation wheel 192 is rotated about the central axis of the housing 110 by the engagement of the locking protrusion 193a and the receiving groove 192b, the rotating member 193 also rotates together. The male thread 193b is screwed to the female thread 116 of the housing 110.

The compression display unit 195 is configured to display the degree of compression of the elastic oscillation member 176 by the operation of the compression operation unit 191 to the outside. The compression display unit 195 may have a support body 195a and a display protrusion 195b for this purpose. The support 195a is disposed between the elastic oscillation member 176 and the rotation member 193 to support the end of the elastic oscillation member 176. The display protrusion 195b radially protrudes from the support 195a and is exposed to the outside through the window 118. While the compression display unit 195 is inserted into the third internal space 113, the display protrusion 195b may be moved along the insertion groove 117.

A more detailed configuration and operation of the medical treatment effector 100 will be described with reference to FIGS. 5 and 6.

5 is a cross-sectional view of the impactor 100 for medical treatment taken along the line (V-V) of FIG. 1.

Referring to this drawing, the third inner space 113 may be divided into a large space 113a and a small space 113b. The large space 113a has a size in which the large diameter portion 172b and the flange 173 of the shaft 171 can be located, and the small space 113b has a size in which only the small diameter portion 172a can pass. The flange 173 may collide with the wall 113c separating the large space 113a and the small space 113b when the shaft 171 starts.

Corresponding to the small space 113b, the through hole 152 of the triggering button 150 may also have a size corresponding thereto. Thereby, the through hole 152 has a size in which the small-diameter portion 172a passes but the large-diameter portion 172b does not. As a result, the size of the through hole 152 is minimized, so that the size of the body 151 of the triggering button 150 may also be reduced. As the body 151 becomes smaller, the size of the housing 110 and further the impactor 100 for medical treatment may be reduced.

In this configuration, the impact unit 170 is ready for oscillation by the operator grasping the handle 175 and pulling it away from the tip 130 along the longitudinal direction L. In this state, the shaft 171 is maximally moved to the right in the drawing, and the elastic oscillation member 176 is maximally compressed. The body 151 of the triggering button 150 is positioned at the first position in a state in which the elastic support member 153 is elastically elongated to block the tip of the shaft 171 from oscillating toward the tip 130 .

6 is a cross-sectional view showing another state of the impactor 100 for medical treatment of FIG. 5.

Referring to this drawing, the triggering button 150 is pressed and operated by the operator, so that the body 151 may be lowered from the first position to the second position. In this case, the elastic support member 153 is compressed. In addition, the through hole 152 is located at a height through which the shaft 171 can pass. As a result, when the block by the body 151 is released, the shaft 171 is oscillated by the force by which the elastic oscillation member 176 is elastically elongated. The oscillated shaft 171 passes through the through hole 152 and impacts the tip 130 into the insertion part 131. The impact applied to the tip 130 may be transmitted to the object through the contact part 135.

To switch the shock unit 170 back to the oscillation standby state, the operator can pull the handle 175 in a direction away from the tip 130, as in the beginning. In this case, the body 151 of the triggering button 150 rises back to the first position by the elastic support member 153 to block the oscillation of the shaft 171. Here, the body 151 maintains a state accommodated in the second inner space 112 by the limiting groove 155 and the limiting pin 156.

In addition, the operator may rotate the operation wheel 192 when it is necessary to adjust the compression amount of the elastic oscillation member 176. When the operation wheel 192 is rotated, the rotating member 193 engaged therewith is rotated. When the rotation member 193 rotates, the compression operation unit 191 may be moved along the length direction L as the male thread 193b is screwed with the female thread 116. Accordingly, the degree to which the elastic oscillation member 176 is compressed may be changed, and thus its elastic modulus may be adjusted. In addition, the adjusted degree can be perceived from the outside by a change in the position of the display protrusion 195b through the window 118.

In the impactor 100 for medical treatment, the tip 130 may be replaced according to a use, so that the impactor can be used for other purposes. In this regard, FIG. 7 is a cross-sectional view illustrating a medical treatment impactor 100 ′ according to a modified example of the medical treatment impactor 100 of FIG. 6.

Regarding this drawing, when a part of the alveolar bone is defective in the implant surgery and it is difficult to support the fixture sufficiently with only the remaining alveolar bone, the bone graft material must be filled in the defective area. This is called Guidded Bone Regeneration (GBR).

In bone-guided regeneration, a fixture is inserted into the alveolar bone, a bone graft is filled in the defective area, and a dental membrane is covered in order to maintain the required shape of the bone graft material. The fixing pin for fixing the membrane is impacted by the medical impactor 100 ′, and is stuck in a bone graft material or alveolar bone.

In this case, unlike the previous embodiment, the tip 130 ′ should be such that a portion of the fixing pin is received and an impact is applied thereto so that the fixing pin is stuck in the alveolar bone. To this end, a hollow receiving portion 135' is formed at the free end of the tip 130'. In addition, the insertion portion 131 ′ of the tip 130 ′ is only pushed toward the hollow of the O-ring, which is the coupling member 119, and, as in the previous embodiment, is forcibly fitted to the O-ring and follows the circumferential direction thereof. It is compressed and fixed in the direction of the central axis in all sections. As a result, the process of removing the existing tip 130 from the O-ring and inserting it into a new tip 130 ′ and fixing it can be performed simply by a one-touch method.

The impactor for medical treatment as described above is not limited to the configuration and operation method of the embodiments described above. The above embodiments may be configured so that all or a part of each of the embodiments may be selectively combined so that various modifications may be made.

For example, the impactor for medical procedures can be used not only in implant-related procedures, but also in orthopedic procedures.

100,100': medical treatment impactor 110: housing
130,130': Tip 150: Triggering button
170: impact unit 190: force control unit

Claims (14)

A housing having an inner space and extending along a longitudinal direction;
A tip inserted and fixed into the inner space and extending to the outside of the housing;
A triggering button disposed in the inner space to be press-operable;
An impact unit including a shaft disposed in the inner space, and an elastic oscillation member for oscillating the shaft to impact the tip while elastically extending along the longitudinal direction as the triggering button is pressed; And
And a force control unit that is operatively coupled to the housing and has a compression operation unit configured to change a compression amount of the elastic oscillation member to adjust a force to oscillate the shaft,
The housing may include a coupling jaw formed on an end side of an inner circumferential surface defining the inner space; And a female thread formed in a region beyond the coupling jaw on the inner circumferential surface,
The compression control unit includes a control wheel provided with a coupling hook coupled to the coupling jaw and rotatably disposed about a central axis of the housing; And a rotating member that has a male thread screwed to the female thread and is rotated according to the rotation of the operation wheel.
The method of claim 1,
The shaft,
A rod disposed along the longitudinal direction to correspond to the tip; And
And a flange protruding from the rod in a radial direction,
The elastic oscillation member,
An impactor for medical treatment comprising a coil spring receiving the rod and having one end supported on the flange.
delete delete The method of claim 1,
The operation wheel,
Further comprising a receiving groove extending along the longitudinal direction,
The rotating member,
As it is inserted into the operation wheel, the impactor for medical treatment further comprising a locking protrusion slidingly inserted into the receiving groove.
The method of claim 2,
The housing,
Further comprising a window communicating the inner space with the outside and extending along the longitudinal direction,
The force control unit,
The impactor for medical treatment, further comprising a compression display unit having a display protrusion exposed to the outside through the window, and supported by the compression operation unit while supporting the other end of the coil spring.
A housing having first to third internal spaces communicating with each other and sequentially arranged along a longitudinal direction, and an insertion groove opening to the outside corresponding to the second internal space;
A tip inserted into the first inner space and fixed to the housing, and an end facing the second inner space having a closed shape;
A body disposed to be movable between a first position and a second position along a crossing direction crossing the longitudinal direction in the second inner space, and a limiting pin inserted into the insertion groove and extending into the second inner space, A triggering button concave on an outer surface of the body to receive the limit pin and having a limiting groove for restricting the body to the second inner space together with the limiting pin; And
A shaft disposed in the third inner space along the longitudinal direction, and elastically compressed by moving the shaft away from the second inner space, and the triggering button is moved from the first position to the second position. An impact unit including an elastic oscillation member for oscillating the shaft toward the first inner space so as to impact the tip while being elastically extended along the longitudinal direction as it is moved; And
It includes a force control unit that is operatively coupled to the housing and has a compression operation unit for varying the compression amount of the elastic oscillation member to adjust the force to oscillate the shaft,
The housing may include a coupling jaw formed on an end side of an inner circumferential surface defining the third inner space; And a female thread formed in a region beyond the coupling jaw on the inner circumferential surface,
The compression control unit includes a control wheel provided with a coupling hook coupled to the coupling jaw and rotatably disposed about a central axis of the housing; And a rotating member that has a male thread screwed to the female thread and is rotated according to the rotation of the operation wheel.
The method of claim 7,
The body,
In the second position, the shaft oscillates along the longitudinal direction and comprises a through hole through which the impactor for medical treatment.
The method of claim 8,
The shaft,
A rod having a small-diameter portion and a large-diameter portion having a larger diameter than the small-diameter portion; And
And a flange protruding in a radial direction from an end of the large-diameter portion connected to the small-diameter portion,
The elastic oscillation member,
Comprising a coil spring receiving the large diameter portion and supported at one end of the flange,
The through hole,
An impactor for medical treatment having a size that passes through the small-diameter portion but does not pass through the large-diameter portion.
The method of claim 9,
The third internal space,
A large space in which the flange and the large diameter part are located; And
It is located between the second inner space and the large space, including a small space for blocking the flange and passing the small diameter, impactor for medical treatment.
delete delete The method of claim 7,
The housing,
It is installed in the first inner space, the impactor for medical treatment further comprising a coupling member configured to be coupled to the housing by being inserted into the first inner space.

The method of claim 13,
The coupling member,
When the tip is replaced, the impactor for medical treatment comprising an O-ring elastically compressing and fixing the tip so as to allow separation only when the tip is pulled with a certain level of force or more.

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