KR102588060B1 - Auxiliary device of surgical guide for implant surgery - Google Patents

Abstract

The present invention relates to an auxiliary device for a surgical guide for implants. The present invention relates to an auxiliary device for a surgical guide for implants. A surgical guide is formed with a guide hole for guiding an implant drill to form a groove on the implant installation area based on data obtained from inside the patient's mouth and perform the procedure. ; and an anti-shrinkage holder inserted into the guide hole to maintain the inner diameter of the guide hole to prevent shrinkage and deformation of the guide hole of the surgical guide.

Description

Auxiliary device for surgical guide for implants {AUXILIARY DEVICE OF SURGICAL GUIDE FOR IMPLANT SURGERY}

The present invention relates to an auxiliary device for a surgical guide for implants, and more specifically, to a surgical guide for implants that can keep the inner diameter of the guide hole of a shrinkable surgical guide constant to ensure convenience and accuracy of the drilling process. It relates to auxiliary devices.

In general, an implant refers to a substitute that can replace human tissue when the original human tissue is lost, but in dentistry, it refers to the transplantation of artificially made teeth. In other words, it is a procedure in which a fixture made of titanium, which is not rejected by the human body, is planted in the alveolar bone where the tooth has been lost to replace the lost tooth root, and then an artificial tooth is fixed to restore the function of the tooth.

In detail, in the case of general prosthetics or dentures, the surrounding teeth and bones are damaged over time, but implants can prevent damage to surrounding tooth tissue and can be used stably because they do not cause secondary cavities. In addition, since implants have substantially the same structure as natural teeth, there is no pain in the gums or foreign body sensation, and they have the advantage of being able to be used semi-permanently if properly maintained.

Meanwhile, the implant procedure involves drilling an installation hole in the alveolar bone using a drill and installing a fixture in the installation hole. The procedures for drilling the installation hole and installing the fixture are different for each patient. This is because the placement location, depth, and direction of the implant must be determined by considering various factors such as the condition of the patient's teeth, the position of the tooth requiring implant surgery, and the condition of the patient's alveolar bone.

The appropriate placement location, direction, and depth of these implants are the most important factors in the success of the implant procedure.

To achieve this, considerations for the implant procedure must be planned from a prosthodontic perspective through oral data and CT data before the procedure, and an assistant called a surgical guide is used to guide the position and direction of the implant in the planned position and direction during the procedure. Use equipment.

This surgical guide is mounted in the patient's oral cavity, and a guide hole is formed to guide the drill so that the procedure can be performed by forming a groove on the implant installation area.

In addition, a sleeve was fastened to improve the accuracy of the direction and angle of the guide hole by stably supporting the drill on the inner peripheral surface of the guide hole and to increase the overall completeness of the implant procedure. However, when the width of the alveolar bone or the gap between teeth was narrow, Due to the problem of not being able to drill accurately when using a sleeve, recently, it is often used without a sleeve installed.

In this way, a non-sleeve type surgical guide that is not equipped with a sleeve is manufactured from a resin-based synthetic resin material using the oral data and CT data of the patient being treated. Therefore, as it took some time to perform the implant procedure after 3D printing based on oral data and CT data, the surgical guide was deformed, and the guide hole was contracted, making it impossible to stably support the drill.

To solve this problem, the inner diameter of the guide hole of a non-sleeve type surgical guide was enlarged and used before implant placement. Work was performed to enlarge the inner diameter of the guide hole, but due to the characteristics of the material, the surface of the guide hole was used. There was a problem that posed a serious threat to the health and safety of patients undergoing the procedure when using the surgical guide as it was not smooth or left residue.

Republic of Korea Patent Publication No. 1854734 (2018.04.27)

The purpose of the present invention is to provide an auxiliary device for a surgical guide for dental implants that can maintain the inner diameter of the guide hole of the surgical guide for dental implants, which is deformable due to shrinkage, constant in its initial form before deformation.

Another object of the present invention is to enable the anti-shrinkage holder to prevent shrinkage of the guide hole of the surgical guide to be easily separated from the guide hole before implant surgery.

In order to achieve the above object, the present invention provides a surgical guide with a guide hole for guiding an implant drill to form a groove on the implant installation area based on data acquired from inside the patient's oral cavity and perform the procedure; An anti-shrinkage holder inserted into the guide hole to maintain the inner diameter of the guide hole to prevent shrinkage and deformation of the guide hole of the surgical guide; and a holder separation mechanism for separating the anti-contraction holder by linearly moving it from the guide hole by applying a rotational torque in the axial direction of the anti-contraction holder.

According to an embodiment of the present invention, the anti-shrink holder includes a cylindrical holder body having an outer diameter corresponding to the inner diameter of the guide hole so that it can be inserted into the inner peripheral surface of the guide hole.

According to an embodiment of the present invention, the anti-shrinkage holder includes a cylindrical portion having a hollow fastening hole; and a flange portion provided on an upper side of the cylinder portion and supported on at least a portion of the upper side of the guide hole.

According to an embodiment of the present invention, the cylinder part is a sliding part inserted into the inner peripheral surface of the guide hole and includes a contact surface that contacts the inner peripheral surface of the guide hole before and after contraction of the guide hole.

According to an embodiment of the present invention, the flange portion includes a protruding protrusion protruding in the radial direction to be supported on the upper surface of the guide hole; and an inclined surface extending obliquely upward and outward from the protruding jaw.

According to an embodiment of the present invention, the holder separation mechanism includes a gripper for transmitting rotational torque to the anti-shrinkage holder; A cylindrical body having a cylindrical shape including a wall that is long in one direction and whose lower part is open to accommodate the anti-shrinkage holder that moves in a straight line with respect to the guide hole; and a fastening portion extending from the center of the bottom surface of the cylindrical body, having threads formed on the outer peripheral surface, and fastened by threads formed in the fastening hole of the anti-shrinkage holder.

According to an embodiment of the present invention, the holder separation mechanism extends upward from the lower end that first enters the fastening hole of the anti-shrinkage holder, and includes a guide surface having a smooth outer peripheral surface, and a threaded thread of the holder separation mechanism. may be formed above the guide surface to be inserted after inserting the fastening hole of the guide surface.

According to an embodiment of the present invention, the vertical height of the screw thread may be greater than the vertical height of the guide surface.

According to an embodiment of the present invention, the holder separation mechanism includes a cylindrical body having an internal space; and a fastening part that protrudes from the cylindrical body and crosses the internal space, wherein the fastening part may have a screw thread formed on an outer peripheral surface.

According to an embodiment of the present invention, the end of the cylindrical body forms a support surface supported on the outer surface of the surgical guide, and in a state where the support surface is supported on the outer surface of the surgical guide, the holder separation mechanism The anti-shrinkage holder can be rotated to be straightly drawn out from the guide hole of the surgical guide.

According to an embodiment of the present invention, the fastening portion is formed to extend longer outward from the boundary of the wall of the cylindrical body.

According to an embodiment of the present invention, a slip prevention groove formed of a plurality of grooves formed elongated in the vertical direction may be formed on the outer peripheral surface of the gripper.

According to an embodiment of the present invention, the wall of the cylindrical body is formed to have an inner diameter corresponding to the outer diameter of the flange portion of the anti-shrinkage holder, and the fastening portion is fastened to the fastening hole of the anti-shrinkage holder to When the wall accommodates the flange portion, the wall is supported on the outer diameter of the protruding protrusion of the corresponding flange portion.

According to the auxiliary device for the surgical guide for implants according to the present invention configured as described above, there is an effect of maintaining the inner diameter of the guide hole of the surgical guide, which is deformable due to shrinkage before the dental implant procedure, in its original form before deformation.

The anti-shrinkage holder, which maintains the inner diameter of the guide hole of the surgical guide in its pre-deformed form, can be easily separated from the guide hole before implant surgery.

With the fastening part fastened to the fastening hole passing through the center of the anti-shrinkage holder, the anti-shrinkage holder can be easily separated from the guide hole of the surgical guide through a simple process of converting rotational movement into linear movement. .

Figure 1 is a perspective view showing a surgical guide for dental implants according to an embodiment of the present invention.
Figure 2 is a diagram showing an anti-shrink holder that can be inserted into the guide hole of a surgical guide according to an embodiment of the present invention.
Figure 3 is a perspective view showing an anti-shrinkage holder according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing an anti-shrinkage holder according to an embodiment of the present invention.
Figure 5 is a perspective view showing a holder separation mechanism according to an embodiment of the present invention.
Figure 6 is a cross-sectional view showing a holder separation mechanism according to an embodiment of the present invention.
7 to 9 are diagrams showing the process of separating the anti-shrinkage holder from the guide hole using the holder separation mechanism according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention can easily implement other embodiments within the scope of the same spirit by adding, deleting, changing, and adding components, etc. It may be proposed, but it will also be said to be included within the scope of the present invention.

When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing embodiments of the present invention, if detailed descriptions of related known configurations or functions are judged to impede understanding of the embodiments of the present invention, the detailed descriptions will be omitted.

Additionally, when describing the components of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. When a component is described as being "connected," "coupled," or "connected" to another component, that component may be directly connected or connected to that other component, but there is no need for another component between each component. It should be understood that may be “connected,” “combined,” or “connected.”

Figure 1 is a perspective view showing a surgical guide for dental implants according to an embodiment of the present invention, and Figure 2 is a view showing an anti-shrinkage holder that can be inserted into the guide hole of the surgical guide according to an embodiment of the present invention.

As shown in FIG. 1, the surgical guide 100 for dental implants according to an embodiment of the present invention includes a guide body 110 having a shape corresponding to at least a portion of the inside of the patient's mouth, and an implant among the guide bodies 110. A plurality of guide holes 120 are formed at the position where the is to be installed.

Here, the surgical guide 100 for dental implants is provided to surround and secure the installation target portion where the fixture is installed based on three-dimensional data obtained from the inside of the patient's oral cavity.

The implantation target area refers to the location inside the patient's mouth where an artificial implant such as a fixture, abutment, or crown (prosthesis) will be installed. At this time, processes such as forming a guide hole 120 for installing an artificial implant through the surgical guide 100, installing a fixture, combining an abutment, etc. may be performed.

Additionally, 3D data consisting of oral data and CT data consists of CT images, scanned images, and integrated images.

A CT image is obtained by taking a CT scan of the inside of the patient's oral cavity, and includes information about the patient's teeth, including the crown and tooth root, and bone tissue such as alveolar bone.

The scan image is obtained by scanning the inside of the patient's mouth, and includes the upper side of the tooth appearing outside the gum and external shape information about the gum.

The integrated image can be obtained by matching the CT image and the scan image based on a common part of the tooth crown or a reference marker already installed inside the oral cavity.

Accordingly, based on 3D data, the patient's alveolar bone amount, bone density, distribution, gum thickness for each part of the alveolar bone, shape of surrounding teeth, chewing surface between upper and lower jaw remaining teeth, etc. can be analyzed. At this time, artificial implants such as fixtures, abutments, crowns, etc. may be selected or designed according to the analyzed results.

The guide body 110 of the surgical guide 100 for dental implants according to an embodiment of the present invention is a part for fixing inside the patient's oral cavity and is provided in a dental arch shape such as a 'U' shape, and has an oral cavity on one side. An oral groove (not shown) into which the inside is inserted is formed.

The guide body 110 includes a fixing part 111 and a guide part 112. Of course, the fixing part 111 and the guide part 112 may be manufactured integrally, or they may be manufactured separately and coupled to each other for convenience of manufacturing.

The fixing part 111 is a part for fixing the guide body 110 inside the patient's oral cavity. It can also be provided in a shape corresponding to one entire dental arch where the installation target part of the upper and lower jaw is located. It is also possible to have a shape corresponding to a portion adjacent to the implantation target portion. At this time, the oral groove is provided to have an inner profile corresponding to the outer profile of the oral cavity adjacent to the implantation target area based on 3D data, and as the patient's gums/crowns, etc. are inserted and combined into the inside of the oral groove, the fixing part (111) can be fixed inside the oral cavity.

Of course, it is also possible for the fixing part 111 to be provided with an anchor hole (not shown). At this time, as the anchor pin inserted into the anchor hole is inserted and fixed into the patient's alveolar bone, flow due to flexible tissues such as the gums can be minimized.

The guide unit 112 is a part that substantially guides the implantation process of the artificial implant and may be provided with a circular tube member (sleeve) that is inserted into and fastened to the guide hole 120. However, in the embodiment of the present invention, the circular crown member is not used in consideration of the width of the alveolar bone or the gap between teeth.

The guide hole 120 can be cut by rotating an implant drill along the inner peripheral surface. Here, the implant drill can be understood as a concept encompassing a tissue punch used to perforate the gums, a bone plating drill and perforation drill used to cut the alveolar bone, and a driver used to install a fixture. In other words, as the implant drill is rotated and aligned with the guide hole 120 for cutting, the direction, position, and angle are formed during processes such as gum perforation, alveolar bone cutting, and fixture installation using the implant drill. It can be guided to correspond to direction and location.

The guide body 110 is made of a resin-based synthetic resin material that has a certain amount of elasticity and a soft touch to reduce manufacturing costs through easy processing and minimize foreign body sensation when installed inside the oral cavity.

The guide hole 120 of the guide body 110 of the surgical guide 100 is deformed as some time passes from 3D printing using 3D data to the time of implant surgery. In particular, as shrinkage deformation occurs in the guide hole 120, stable support of the implant drill becomes impossible.

Figure 3 is a perspective view showing an anti-shrinkage holder according to an embodiment of the present invention, and Figure 4 is a cross-sectional view showing an anti-shrinkage holder according to an embodiment of the present invention.

As shown in FIGS. 3 and 4, in the embodiment of the present invention, the guide hole 120 is installed so that the inner diameter of the guide hole 120 of the non-sleeve type surgical guide 100 can be kept constant in its initial form before deformation. ) is applied to the anti-shrinkage holder 200.

The anti-shrinkage holder 200 is preferably made of a metal material that has high strength and low coefficient of friction and thermal deformation.

Referring to the drawing, the anti-shrinkage holder 200 has a cylindrical shape so that it can be inserted into the inner peripheral surface of the guide hole 120, and includes a holder body 210 having an outer diameter corresponding to the inner diameter of the guide hole 120. .

The holder body 210 includes a cylindrical cylinder portion 220 having a substantially hollow fastening hole 221, and a flange portion provided on the upper side of the cylinder portion 220 and supported on at least a portion of the upper portion of the guide hole 120 ( 230).

The cylinder portion 220 is a part that is inserted into the inner peripheral surface of the guide hole 120 and is capable of sliding movement, and includes a contact surface 222 that contacts the inner peripheral surface of the guide hole 120 before or after contraction of the surgical guide 100. do.

The cylinder portion 220 can maintain the inner diameter of the guide hole 120 of the surgical guide 100, which is deformable due to contraction of the surgical guide 100, in its original form before deformation. In other words, the inner diameter of the guide hole 120 is maintained in contact with the outer diameter of the cylinder portion 220, so even if some time elapses from 3D printing using 3D data to the time of implant surgery, the guide hole 120 The occurrence of shrinkage deformation can be suppressed.

As a result, the accuracy and convenience of the drilling process of the implant drill can be improved as the implant drill is stably supported in the guide hole 120.

The flange portion 230 is formed to have a larger diameter than the cylinder portion 220.

In the flange portion 230, a protruding protrusion 231 that protrudes in the radial direction to be supported on the upper surface of the guide hole 120 and an inclined surface 232 that extends obliquely outward and upward from the protruding protrusion 231 are formed.

The protruding jaw 231 extends outward from the outer peripheral surface of the cylinder portion 220 and can be stably supported in the guide hole 120. And the inclined surface 232 defines a predetermined space into which the flange portion 230 supported on the upper surface of the guide hole 120 of the surgical guide 100 can be easily inserted into the holder separation mechanism 300. That is, since the inclined surface 232 is formed on the holder body 210, the holder body 210 can be easily slid upward. At this time, the holder separation mechanism 300 can easily accommodate the holder body 210 in the internal space of the cylindrical body 320 of the holder separation mechanism 300.

Figure 5 is a perspective view showing a holder separation mechanism according to an embodiment of the present invention, and Figure 6 is a cross-sectional view showing the holder separation mechanism according to an embodiment of the present invention.

Meanwhile, according to an embodiment of the present invention, the anti-shrinkage holder 200 is inserted into the guide hole 120 of the surgical guide 100 to prevent shrinkage deformation of the guide hole 120. The cylinder portion 220 may be press-fitted to the inner peripheral surface of the guide hole 120 by shrinkage and deformation. Therefore, a holder separation mechanism 300 for easily separating the anti-shrinkage holder 200, which maintains the inner diameter of the guide hole 120 of the surgical guide 100 in its pre-deformed form, from the guide hole 120 before implant surgery. can be applied.

As shown in Figures 5 and 6, the holder separation mechanism 300 includes a grip part 310, a cylindrical body 320, a rod part 330, and a fastening part 340.

The gripper 310 can hold the holder separation mechanism 300 by hand and apply torque in a clockwise or counterclockwise direction, thereby transmitting rotational torque to the anti-shrinkage holder 200.

The gripping portion 310 has a cylindrical shape with excellent grip, and an anti-slip groove 311 is formed on the outer peripheral surface to prevent slipping.

The slip prevention groove 311 of the gripper 310 may be formed as a plurality of grooves formed long in the longitudinal direction of the gripper 310.

The anti-slip groove 311 is a tool that allows the anti-shrinkage holder 200 to be separated using a tool such as a torque wrench when the anti-shrinkage holder 200 is strongly fixed to the guide hole 120 and cannot be easily separated. It may be a coupling groove where is joined.

The cylindrical body 320 is integrally connected to the end of the rod portion 330 and includes a receiving space 322 in which the anti-shrinkage holder 200, which moves in a straight line with respect to the guide hole 120, is accommodated. Additionally, the cylindrical body 320 has an open inner space at the bottom and is formed in a cylindrical shape including a wall 321 that is long in one direction. That is, when the anti-shrinkage holder 200 is separated from the guide hole 120 of the surgical guide 100 by the holder separation mechanism 300, the anti-shrinkage holder 200 moves straight upward and the cylindrical body 320 It can be accommodated in the accommodation space 322.

The wall 321 of the cylindrical body 320 is formed to have an inner diameter corresponding to the outer diameter of the flange portion 230 of the anti-shrinkage holder 200. The fastening portion 340 of the holder separation mechanism 300 is fastened to the fastening hole 221 of the anti-shrinkage holder 200, so that the wall 321 of the cylindrical body 320 is connected to the flange portion 230 of the anti-shrinkage holder 200. ), the inner diameter of the wall 321 may be supported by the outer diameter of the protruding protrusion 231 of the corresponding flange portion 230. This means that when the holder separation mechanism 300 enters the anti-shrinkage holder 200 into the internal space of the cylindrical body 320, the fastening portion 340 of the holder separation mechanism 300 normally fastens the anti-shrinkage holder 200. This is to recognize that it is located at the correct position in the center of the hole 221.

In addition, a support surface 323 supported by the outer surface of the surgical guide 100 is formed at the end of the wall 321 of the cylindrical body 320. The support surface 323 is supported on the outer surface of the surgical guide 100 so that the holder separation mechanism 300 pulls the anti-shrinkage holder 200 straight out from the guide hole 120 of the surgical guide 100. It rotates.

The rod part 330 is a part that connects the grip part 310 and the cylindrical body 320, and the diameter of the rod part 330 can be formed regardless of the diameters of the grip part 310 and the cylindrical body 320. However, it is preferable that the diameter of the grip portion 310 and the cylindrical body 320 are relatively smaller.

The fastening portion 340 extends from the center of the bottom surface of the cylindrical body 320 to cross the internal space and consists of a screw shaft with threads formed on the outer peripheral surface.

The fastening portion 340 extends upward from the lower end that first enters the fastening hole 221 of the anti-shrinkage holder 200, and includes a guide surface 341 having a smooth outer peripheral surface.

The thread formed on the outer peripheral surface of the fastening part 340 is formed above the guide surface 341 to be inserted after insertion into the fastening hole 221 of the guide surface 341. At this time, the vertical height of the screw thread is formed to be larger than the vertical height of the guide surface 341.

Additionally, the screw thread may be fastened by a screw thread formed in the fastening hole 221 of the anti-shrinkage holder 200.

The fastening portion 340 may be formed to extend longer outward from the boundary of the wall 321 of the cylindrical body 320.

Therefore, when the fastening part 340 of the holder separation mechanism 300 configured as described above is fastened to the fastening hole 221 of the anti-shrinkage holder 200, when the gripping part 310 is rotated in the fastening direction, shrinkage is prevented. The fastening hole 221 of the holder 200 is fastened to the fastening part 340 and is driven straight upward. At this time, the protruding protrusion 231 of the anti-shrinkage holder 200 is supported by the wall 321 of the cylindrical body 320 and moves by friction into the receiving space 322.

Figures 7 to 9 are diagrams showing the process of separating the anti-shrinkage holder 200 from the guide hole 120 by the holder separation mechanism 300 according to an embodiment of the present invention. The holder is separated with reference to Figures 7 to 9. The process for separating the anti-shrinkage holder 200 from the guide hole 120 of the surgical guide 100 through the mechanism 300 will be described.

First, the anti-shrink holder 200 corresponding to the inner diameter of the guide hole 120 formed in the surgical guide 100 is inserted. At this time, the cylinder part 220 of the anti-shrinkage holder 200 is slidably inserted while contacting the inner peripheral surface of the guide hole 120, so that the outer diameter of the cylinder part 220 of the anti-shrinkage holder 200 is the inner diameter of the guide hole 120. It can be press-fitted.

The guide hole 120 formed in the guide body 110 of the surgical guide 100 is deformed as some time passes from 3D printing using 3D data to the time of implant surgery. In particular, the guide hole 120 is subject to shrinkage and deformation, but the anti-shrinkage holder 200 press-fitted into the guide hole 120 prevents the guide hole 120 from shrinking and deforming and maintains its original shape.

In this way, the anti-shrinkage holder 200, which prevents shrinkage and deformation from occurring on the inner peripheral surface of the guide hole 120 and maintains its shape before deformation, can be separated from the guide hole 120 of the surgical guide 100 before implant surgery. You can.

The holder separation mechanism 300 of FIGS. 5 and 6 is used to separate the anti-shrink holder 200 from the guide hole 120 of the surgical guide 100.

The fastening portion 340 of the holder separation mechanism 300 is fastened to the fastening hole 221 of the anti-shrinkage holder 200 that is press-fitted into the guide hole 120 of the surgical guide 100.

The grip portion 310 of the holder separation mechanism 300 is grasped by hand and then torque is applied in the fastening direction to transmit rotational torque to the anti-shrinkage holder 200.

When the gripper 310 is continuously rotated, the thread of the fastening portion 340 is fastened to the thread of the fastening hole 221, causing the wall 321 of the cylindrical body 320 of the holder separation mechanism 300 to contract. While supported by the flange portion 230 of the prevention holder 200, the support surface 323 of the wall 321 is supported by contacting the outer surface of the guide body 110 of the surgical guide 100.

Next, when continuous rotational torque is applied to the gripping portion 310 of the holder separation mechanism 300, the support surface 323 is supported on the outer surface of the surgical guide 100, and the holder separation mechanism 300 ) The anti-shrinkage holder 200 fastened to the fastening part 340 is pulled out by moving straight upward along the screw axis direction of the fastening part 340. At this time, the holder separation mechanism 300 rotates so that the anti-shrinkage holder 200 is pulled out straight from the guide hole 120 of the surgical guide 100.

Ultimately, the anti-shrinkage holder 200 can be separated from the guide hole 120 of the surgical guide 100.

Before implant surgery, an installation hole is drilled in the alveolar bone using an implant drill and a fixture is installed in the installation hole. At this time, the implant drill is stably supported and the accuracy of the direction and angle of the guide hole 120 is maintained. Based on this, the implant drill can be stably supported and guided along the guide hole 120 of the surgical guide 100.

According to the present invention, the inner diameter of the guide hole 120 of the surgical guide 100, which is deformable due to shrinkage before dental implant surgery, can be maintained in its original form before deformation. To this end, the drill is stably supported on the inner peripheral surface of the guide hole 120 to improve the accuracy of the direction and angle of the guide hole 120 and a surgical guide (100) capable of shrinking and deforming to improve the overall completeness of the implant procedure. ) The anti-shrinkage holder 200 can be inserted into the guide hole 120.

In addition, the present invention is to continuously apply rotational torque while the fastening portion 340 of the holder separation mechanism 300 is fastened to the anti-shrink holder 200 to separate the fastening portion 340 of the holder separation mechanism 300 from the guide hole 120 of the surgical guide 100. The anti-shrink holder 200 can be separated.

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the patent claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

100: Surgical guide 110: Guide body
111: fixing part 112: guide part
120: Guide hole 200: Anti-shrinkage holder
210: Holder body 220: Cylinder part
221: fastening hole 222: contact surface
230: flange portion 232: inclined plane
300: Holder separation mechanism 310: Holding part
311: Slip prevention groove 320: Cylindrical body
321: wall 322: accommodation space
323: support surface 330: load part
340: fastening part 341: guide surface

Claims (13)

A surgical guide formed with a guide hole for guiding an implant drill to form a groove on the implant installation area based on data acquired from inside the patient's mouth and perform the procedure;
An anti-shrinkage holder inserted into the guide hole to maintain the inner diameter of the guide hole to prevent shrinkage and deformation of the guide hole of the surgical guide; and
An auxiliary device for a surgical guide for implants, including a holder separation mechanism for separating the anti-contraction holder by linearly moving it from the guide hole by applying a rotational torque in the axial direction of the anti-contraction holder.
According to paragraph 1,
The anti-shrink holder is,
An auxiliary device for a surgical guide for implants, comprising a cylindrical holder body having an outer diameter corresponding to an inner diameter of the guide hole so that it can be inserted into the inner peripheral surface of the guide hole.
According to paragraph 2,
The anti-shrink holder is,
A cylindrical cylinder portion having a hollow fastening hole; and
An auxiliary device for a surgical guide for an implant comprising a flange portion provided on an upper side of the cylinder portion and supported on at least an upper portion of the guide hole.
According to paragraph 3,
The cylinder part is a sliding part inserted into the inner peripheral surface of the guide hole and includes a contact surface that contacts the inner peripheral surface of the guide hole before and after contraction of the guide hole.
According to paragraph 4,
The flange portion includes a protruding protrusion protruding in the radial direction to be supported on the upper surface of the guide hole; and
An auxiliary device for a surgical guide for an implant comprising: an inclined surface extending obliquely upward and outward from the protruding jaw.
According to clause 5,
The holder separation mechanism is,
A gripper for transmitting rotational torque to the anti-shrinkage holder;
A cylindrical body having a cylindrical shape including a wall that is long in one direction and whose lower part is open to accommodate the anti-shrinkage holder that moves in a straight line with respect to the guide hole; and
An auxiliary device for a surgical guide for an implant comprising a fastening part that extends from the center of the bottom surface of the cylindrical body, has threads formed on the outer peripheral surface, and is fastened by the threads formed in the fastening hole of the anti-shrinkage holder.
According to clause 6,
The holder separation mechanism is,
It extends upward from the lower end that first enters the fastening hole of the anti-shrinkage holder and includes a guide surface having a smooth outer peripheral surface,
An auxiliary device for a surgical guide for implants in which the thread of the holder separation mechanism is formed above the guide surface to be inserted after insertion of the fastening hole of the guide surface.
In clause 7,
An auxiliary device for a surgical guide for implants in which the vertical height of the screw thread is greater than the vertical height of the guide surface.
According to clause 5,
The holder separation mechanism is,
a cylindrical body having an internal space; and
It includes a fastening part that protrudes from the cylindrical body and crosses the internal space,
The fastening part is an auxiliary device for a surgical guide for implants with threads formed on the outer peripheral surface.
According to clause 6 or 9,
The wall of the cylindrical body is formed to have an inner diameter corresponding to the outer diameter of the flange portion of the anti-shrinkage holder,
When the fastening part is fastened to the fastening hole of the anti-shrinkage holder and the wall accommodates the flange part, the wall is supported on the outer diameter of the protruding jaw of the corresponding flange part.
According to clause 6 or 9,
An end of the cylindrical body forms a support surface supported on the outer surface of the surgical guide,
An auxiliary device for a surgical guide for implants in which the support surface is supported on the outer surface of the surgical guide, and the holder separation mechanism rotates to straightly extract the anti-contraction holder from the guide hole of the surgical guide.
According to clause 6 or 9,
The fastening part is an auxiliary device for a surgical guide for an implant formed by extending longer outward from the boundary of the wall of the cylindrical body.
According to clause 6,
An auxiliary device for a surgical guide for implants in which a slip prevention groove is formed on the outer peripheral surface of the gripper and is formed of a plurality of longitudinal grooves.

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