WO2011136601A2 - Method for forming guide hole of surgical guide instrument, and surgical guide member therefor - Google Patents

Abstract

The present invention relates to a method for forming a guide hole of a surgical guide instrument which guides a surgical tool when a perforated hole is formed in a jawbone, and a surgical guide member therefor. The present invention provides a method for forming a guide hole of a surgical guide instrument, wherein a guide hole of a surgical tool is formed on a processing plate of the surgical guide instrument by using a laminagram obtained by laminagraphy. The laminagram comprises: a first sectional image which is a vertical section image in the buccolingual direction obtained vertically to the outer surface of the processing plate; and a second sectional image which is a cross-sectional image vertical to the first sectional image and the outer surface of the processing plate. According to the present invention, it is possible to rapidly derive a guide hole of a surgical tool in the surgical guide instrument with a precise location and angle by a simple method, thereby enabling an implant hole of an anchor or a surgical hole for dental surgery to be formed in the precise location of a jawbone with a precise angle.

Description

Guide Hole Formation Method of Surgical Induction Instrument and Surgical Guiding Member

The present invention relates to a method of forming a guide hole formed in a surgical guide device used for orthodontic orthodontic orthodontic surgery to guide a surgical tool to the jawbone, and more specifically, a surgical guide member using a tomographic image. The present invention relates to a method for forming the guide hole at the correct position and angle and to a surgical guide member therefor.

For modern people, appearance, especially impression, serves as a criterion for judging people during job interviews and admissions, and plays a very important role in social life, taking up a large proportion in interpersonal relationships. Accordingly, despite the age and sex, plastic surgery on the human body is becoming very popular. Among them, plastic surgery for the main organs of the face, such as eyes, nose, mouth, etc., is in the spotlight. On the other hand, teeth and orthodontics generally influence the impression, and in recent years, orthodontic treatment for evening the orthodontics (orthodontic treatment) is prevalent.

The orthodontics, that is, the orthodontic treatment is generally performed by the orthodontic device using a bracket and wire of metal or ceramic material, by providing a traction force is connected to the anchor traction member such as elastic or spring The dentition moves. The anchor is called an orthodontic anchor in the dental field, and the anchor is placed on the jawbone and serves as a support for providing traction for the tooth movement. In more detail, the brackets are fixed to the teeth one by one, and the wires align the teeth by connecting the brackets, and the orthodontic anchors are generally placed in the jawbone and used as anchors for movement of the teeth, ie traction. Works. The anchorage is anchored to the jaw bone in a manner that is placed in the maxillary or mandible, more specifically, the alveolar bone, so as to function as an anchor (ie, skeletal anchorage) for movement, insertion, and extraction of the tooth. do.

On the other hand, a surgical tool for drilling the implantation hole of the fixed source in the alveolar bone of the patient, for example, a guide for guiding the fixed source to the implantation hole formed in the jaw bone or the implantation hole or surgical It is called a stent. The surgical stent is seated in the oral cavity during the procedure of the fixed source to guide the dental drill to the jawbone, whereby an implantation hole for the placement of the fixed circle is formed in the jawbone (jawbone). The surgical stent, that is, the surgical induction mechanism has a guide hole for guiding the drill, and the operator identifies the state of the alveolar bone where the anchorage is to be placed through X-ray tomography and diagnoses the position of the anchorage. And set it. After the guide hole is processed in the surgical guide mechanism, the surgical guide mechanism is mounted in the oral cavity to guide the surgical tool.

As described above, the guide hole should be formed at the correct position and angle in the surgical guide mechanism in order for the fixed circle to be accurately positioned at the fixed position set by the X-ray tomography. However, in the related art, since the guide hole is processed at an approximate position by the eye mass of the operator based on the alveolar bone cross-sectional image obtained by X-ray tomography, the precision of the guide hole is lowered, which causes the implantation to be formed in the alveolar bone. There was a problem that the position or angle of the hole is out of the initial setting position diagnosed through the tomography image. In addition, the process of forming the guide hole in the correct position and angle in the surgical guide member for the production of the surgical guide mechanism is complicated, and for this, expensive processing equipment must be used, which is expensive for the production of the surgical stent. There was a costly problem.

Accordingly, the present inventors, a guide hole forming method that can accurately form the guide hole in the surgical guide member in a simple manner so that the implantation hole can be accurately formed at the position of the fixed source is set through the tomographic image and We developed a surgical guide member.

The present invention was devised to solve the problems caused by the above-described conventional surgical guide mechanism, and is located at the position of implantation of the fixed source or the position of implantation of the artificial tooth implant, that is, the position of setting the implant hole, diagnosed / determined through tomography. An object of the present invention is to provide a guide hole forming method of a surgical guide device that can accurately guide a surgical tool, and a surgical guide member therefor.

Another object of the present invention is to guide the surgical hole forming surgical tool to the setting position of the surgical hole for diagnosis / determination through tomography to accurately guide the surgical induction mechanism to form the surgical hole in the jawbone Its purpose is to provide a guide hole forming method and a surgical guide member for the same.

The present invention for achieving the above object: After the tomography in a state in which the surgical guide member having a flat outer surface plate is installed in the oral cavity, any one of the mounting hole of the orthodontic fixed source and the surgical hole for dental surgery Provided is a guide hole forming method of a surgical guide mechanism for forming a guide hole of a surgical tool for forming one drilling hole in the jawbone on the plate using a tomography image obtained by the tomography. Here, the tomographic image is a first cross-sectional image which is a longitudinal cross-sectional image obtained in the narrowing direction obtained perpendicular to the outer surface of the processed plate, and a second cross-sectional image perpendicular to the outer surface of the first cross-sectional image and the processed plate. It includes a cross-sectional image.

And the guide hole forming method; (A) determining the position and angle of formation of the perforation holes in the first and second cross-sectional images; (B) deriving the inlet position and the processing angle of the guide hole to be formed on the processing plate based on the formation position and angle of the drilling hole determined through the step (a); And (c) forming the guide hole on the plate of the surgical guide member based on the inlet position and the processing angle of the guide hole.

Step (b) is; A first intersecting point and a first crossing angle formed by a first axis line extending in the axial direction of the drilling hole and an outer surface of the processing plate at the formation position (set position) of the drilling hole determined in the first cross-sectional image. At the second intersection point and the second intersection angle formed by the second axis line extending in the axial direction of the drilling hole and the outer surface of the processing plate at the formation position of the drilling hole determined from the first processing data and the second cross-sectional image. And extracting second processing data.

Wherein the working plate has two corners perpendicular to each other; The first cross-sectional image is obtained perpendicular to one corner of the two corners, and the second cross-sectional image is obtained perpendicular to the other corner.

And step (b); The first line segment passing through the first cross point and perpendicular to the first cross section image, and the second line segment crossing the second cross point and perpendicular to the second cross section image, meet on the outer surface of the processed plate. The first cross-sectional image is performed at step (b1) and before or after the step (b1) or at the same time as the step (b1), which leads to the inlet of the guide hole, based on the first and second crossing angles. And (b2) deriving two machining angles formed by a line segment perpendicular to an outer surface of the processing plate and a processing tool for processing the guide hole on a two-dimensional plane of each of the second cross-sectional images.

Here, the two processing angles, the first processing angle formed by the line segment perpendicular to the outer surface of the processing plate and the first axis line on the two-dimensional plane of the first cross-sectional image and the two-dimensional plane of the second cross-sectional image And a second processing angle formed by the line segment perpendicular to the outer surface of the processed plate and the second axis.

Next, the step (c); By setting the first axis of rotation perpendicular to the first cross-sectional image and the second axis of rotation perpendicular to the second cross-sectional image as the coordinate reference axis of the fixed coordinate system, the outer surface of the processing plate is perpendicular to the axis of the machining tool. The surgical guide member is rotated by the first machining angle with respect to the first rotational axis about the first rotational axis and the surgical guide member is rotated by the second machining angle with respect to the second rotational axis as a reference. (C1) arranging at one side of the, and (c2) step of processing the guide hole on the working plate by advancing the processing tool.

In another aspect, the present invention provides a surgical guide member which is installed in the oral cavity through an impression material for forming a guide hole of a surgical guide device and is obtained as the first cross-sectional image and the second cross-sectional image together with the alveolar bone. Here, the surgical guide member is configured to include a base plate for covering the teeth in a state mounted in the oral cavity, and both side walls provided on both ends of the base plate to form an inner groove in which the impression material is placed; At least one of the side walls has three or more reference points marked on the outer surface thereof and applied to the processed plate.

The material of the surgical guide member; Aluminum and PFA (Perfluoroalkoxy), Teflon-PFA (Teflon-PFA) and POM plastics (Polyoxymethylene plastic) is characterized in that it is selected from the group consisting of. Here, both side walls of the surgical guide member are parallel to each other, the both side wall and the base plate is characterized in that the vertical integrally formed. The impression material is characterized in that it has a PVS (polyvinylsiloxane) material as the rubber impression material. And the surgical guide member; When the impression material is removed from the surgical guide member, the impression material is characterized in that it further comprises an alignment line formed in the shape of a protrusion or groove on the wall surface of the inner groove so that it can be recombined in the original position of the surgical guide member. .

The guide hole forming method and the surgical guide member of the surgical guide mechanism according to the present invention has the following effects.

First, according to the present invention, the narrowing direction of the cross-sectional image of the surgical guide member and the alveolar bone obtained by the tomography image, more specifically, the multi-faceted reconstruction image is mounted on the patient's jawbone equipped with the surgical guide member for manufacturing the surgical guide device By using the cross section and the near-central cross section, the specification (position, shape, angle, etc.) of the guide hole to be formed in the surgical guide member can be accurately derived in a simple manner.

Second, according to the present invention, after taking a tomography image using a surgical guide member prepared in advance in a predetermined shape and dimensions, the guide hole in the surgical guide member on the basis of two cross-section images orthogonal to each other; Because of the formation, it is possible to quickly produce a surgical guide mechanism in a simple and accurate manner and to reduce the production cost, the exact hole angle at the initial setting position of the drilling hole, such as the implantation hole or surgery hole that is diagnosed / determined in the tomography image It can be formed as.

Third, according to the present invention, the impression material may be assembled again in the same position by the alignment material formed by the alignment line formed on the inside of the surgical guide mechanism even if the impression material and the surgical guide mechanism of the teeth and gums are separated, When the surgical guide device is remounted in the oral cavity to form a puncture hole in the jawbone, the surgical guide device may be installed at the same position as that of tomography imaging.

1 is a perspective view showing a surgical guide mechanism manufactured by the guide hole forming method according to the present invention;

Figure 2 schematically shows the side structure of the oral cavity undergoing orthodontic treatment;

Figure 3 has a guide hole by the guide hole forming method of the surgical guide mechanism according to the present invention in order to form a surgical hole for the dental surgery, such as an implantation hole or root cutting for the placement of the orthodontic fixing circle A cross-sectional view showing a state where a surgical guide mechanism is installed in the oral cavity;

Figure 4 is a flow chart showing an embodiment of the guide hole forming method of the surgical guide mechanism according to the present invention;

5 is a view showing an example of a state in which the surgical guide member for surgical guide device according to the present invention is installed in the oral cavity for tomography;

6 (a) and 6 (b) are cross-sectional views illustrating first and second cross-sectional images (narrowing direction) and second cross-sectional images (myocentral direction) respectively acquired through tomographic images to set the processing angle and the entrance position of the guide hole. For example, cross-sectional views showing the formation position and angle of the guide hole according to the setting position of the drilling hole;

FIG. 7 is a view illustrating a process of setting a virtual entrance of a guide hole to a processing plate of a surgical guide member through cross-sectional images of FIGS. 6A and 6B;

8 is a view showing a process of determining the inlet position of the guide hole on the processed plate using three or more reference points formed on the processed plate of the surgical guide member;

9 is a perspective view showing an embodiment of a jig for manufacturing a surgical guide device for forming a guide hole in the surgical guide member according to the present invention;

10 is an exploded perspective view of a jig for manufacturing a surgical guide device shown in Figure 9; And

Figure 11 is a perspective view showing another embodiment of the surgical guide mechanism manufactured by the guide hole forming method according to the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the guide hole forming method of the surgical guide mechanism according to the present invention and the surgical guide member therefor will be described in more detail.

1 to 3, the surgical guide mechanism 100 manufactured by the surgical guide member 110 according to the present invention is mounted in the oral cavity through the impression material 200, the jaw bone of the patient, in particular the alveolar bone 310 The surgical tool, for example, a dental drill (not shown) for forming the drilling hole 311 is guided.

The perforation hole 311 includes an implantation hole of a fixed source (30, 70) acting as an anchor during orthodontics, a surgical hole for implantation or an implant implant hole for an artificial tooth. There is, by using the surgical induction mechanism to drill a hole, that is, a surgical hole in a predetermined depth and direction to the jawbone, it is possible to perform the surgery to treat the inflamed tooth root through the hole. Of course, when the surgical guide mechanism 100 is applied to guide the surgical tool for the formation of the implantation hole during orthodontics, the surgical guide mechanism 100 is the fixed source (30, 70) is the jaw bone, that is It may also perform a function of guiding the fixing circle (30, 70) to the insertion hole to be placed in the upper jaw (10) or the lower jaw (20).

The surgical induction mechanism 100 includes a guide hole 120 formed at a predetermined position of the aforementioned surgical guide member 110 and the surgical guide member 110 to guide the surgical tool to a predetermined position of the jawbone. It is composed. Accordingly, the guide hole 120 guides the surgical tool to the jaw bone, in particular the alveolar bone 310, to form a drilling hole 311 in the jaw bone such as the insertion hole or the surgical hole, and further, the alveolar bone 310. After the implantation hole is formed in the), the orthodontic anchoring sources 30 and 70 to be planted in the implantation hole may be guided to the implantation hole.

The surgical guide member 110 is mounted in the oral cavity of the patient to cover the implantation position or the dental surgery position of the fixed circle (30, 70) in detail, the oral cavity of the patient. And, through the tomography image of the surgical guide member 110 obtained with the jaw bone (alveolar bone) in the state where the surgical guide member 110 is mounted inside the oral cavity, it is possible to check the state of the alveolar bone of the patient, Positional relationship between the alveolar bone 310 and the surgical guide member 110 can be confirmed.

The surgical induction member 110 is installed on the gum via the impression material 200 imitating the shape of the gum, the impression material 200 is shaped variable material so that the shape of the gum can be applied to the shape of the gum. Consisting of, after a certain period of time is cured to maintain the shape of the gum as it is. After the tomography image is acquired, the surgical guide member 110 is separated from the oral cavity to the outside, and after the guide hole 120 is formed in the surgical guide member 110 based on the data of the tomography image, The surgical guide member 110 having the guide hole 120 formed therein, that is, the surgical guide device 100 is reinstalled at the same position in the oral cavity (a position at the time of tomography), thereby forming a surgical tool for forming the punched hole 311. The jawbone is guided to a predetermined position (set position in tomography image).

Here, the surgical guide mechanism 100 may be reinstalled at the same position in the oral cavity by the impression material 200, that is, at the same position where the surgical guide member 110 is installed when the tomography image is taken. The surgical guide member 110 is obtained as a tomography image along with the alveolar bone 310 in the state of being installed in a fixed source or dental surgery position in the oral cavity as described above, the material of the surgical guide member 110 is a human body In consideration of the degree of harmfulness to the degree of radiation loss, the degree of radiation attenuation, the quality of the tomographic image, the accurate anatomical shape of the alveolar bone and the degree of occurrence of image noise is preferable.

To evaluate the biocompatibility of various dental impression materials, resin-based composite resins, various metals used in the clinical to select the material suitable for the surgical guide member 110, CBCT (Cone beam computed tomography) imaging As a result of the experiment of measuring the density value of the image (bright and dark degree of the image) and noise (a bad effect on the image or a phenomenon that degrades the image) generated during the present invention, the present invention is a material of the surgical guide member 110 The present invention discloses a material selected from the group consisting of aluminum, perfluoroalkoxy (PFA), teflon-PFA and polyoxymethylene plastic (PFA), of which Teflon-PFA is most suitable for acquiring tomographic images. It was evaluated as appropriate. The impression material 200 may include, but is not limited to, a polyvinylsiloxane (PVS) material as a dental rubber impression material, and the impression material 200 may apply anatomical shapes of teeth and peripheral tissues (gingiva-alveolar mucosa, etc.). It can be possible if the material is low harm to human body or harmless to human body.

The tomography image may be obtained by X-ray tomography, and more specifically, by beam beam computed tomography (CBCT) imaging. An imaging apparatus for acquiring the CBCT image may include an Alphard-Vega Dental CT System (Ashai Roentgen Ind. Co.). , Ltd, Kyoto, Japan). The surgical guide member 110 has a processing plate 112a having a flat outer surface, and the guide hole 120 is processed in the processing plate 112a using the tomographic image.

The guide hole 120 is formed by integrally passing through the surgical guide member 110 and the impression material 200, the surgical guide member 110 described in this embodiment is the base plate 111 and both side walls And 112. Here, the base plate 111 of the surgical guide member 110 covers the teeth in a state where the surgical guide member is mounted in the oral cavity, and both side walls 112 are provided at both ends of the base plate 111. The impression material 200 forms the inner groove is placed.

At least one of the side walls 112 is applied to the processing plate 112a. Accordingly, the two side walls 112 are located at both sides of the gum (the buccal and lingual sides), and the surgical tool inserted through the guide hole 120 enters from the side of the gum and the side surface of the jawbone. The drilling hole 311 is formed.

Hereinafter, an example of forming an implantation hole for implantation of the fixed source as an example of the drilling hole in the jawbone using the surgical guide mechanism. More specifically, as shown in FIG. 2, the fixed circle 30, 70 is the outer side of the gum, that is, the buccal side, more specifically, the fixed circle 30 is the second premolar 11 of the maxillary 10. An example is provided between the root and the root of the first molar 12 and connected to an elastic traction member 40 such as a rubber band or a spring, thereby providing an example of providing traction to the teeth through the wire 50 and the bracket 60. do. Of course, a separate fixed source 70 may be implanted between the root of the second premolar 21 and the root of the first molar 22 of the mandible 20 depending on the purpose of treatment or procedure.

Here, the outer surface of the processing plate 112a forms a flat plane, and serves as a reference plane for determining the specification (entrance position, processing angle, etc.) of the guide hole 120. More specifically, both side walls 112 of the surgical guide member 110 are parallel to each other, both side walls 112 and the base plate 111 is formed vertically integral with each other. Accordingly, the surgical guide member 110 has a cross-section of a 'c' shape in which the bottom surface or the top surface and both sides are open and the inner groove is formed between the two side walls, and the outer surfaces of the side walls 112. And the outer surface of the base plate 111 are perpendicular to each other at right angles.

In addition, at least three reference points 130 are formed on the outer surface of the processing plate 112a. In the present embodiment, the reference points 130 have a groove shape, but are not limited thereto, and may have a protrusion shape. It may be formed by marking the surface of the processed plate using ink in the form of dots. The reference point 130 serves as a coordinate reference point in deriving the inlet position of the guide hole 120 in the processing plate 112a, the details of which in the guide hole forming method of the surgical guide mechanism according to the present invention It is explained in more detail.

Three or more reference points 130 are formed on an outer surface of at least one of the side walls, in particular, an outer surface of a wall to be applied to the processed plate, and the base plate 111 is applied to the processed plate. Can also be formed on the outer surface of the.

And at least one of the outer surface of the at least one of the side wall 112 is applied to the processing plate 112a is provided with at least one dividing line (141, 142) for dividing the outer surface of the both side wall 112, In the present embodiment, the dividing lines 141 and 142 are provided on the outer surface of the side wall 112 to be applied to the processing plate 112a in a straight groove shape in the horizontal direction and the vertical direction. The present invention is not limited thereto, but may have a form of protrusion rather than a groove.

In the present exemplary embodiment, the dividing lines 141 and 142 divide the outer surfaces of the both side walls into grids having the same size to form a plurality of rectangular regions, and are formed by the dividing lines 141 and 142. The reference point 130 is formed at the center of each of the blind spots. Of course, separate dividing lines 151 and 152 may be formed on the outer surface of the base plate 111, and vertical lines 142 of the dividing lines of the vertical lines 152 and both side walls of the dividing lines of the base plate 111. ) May be connected to each other. The dividing lines 141 and 142 may be used as indicator lines for diagnosing / determining and confirming the position of the fixed circle in the tomography image, and at the same time, the guide holes 120 may be used during the processing of the guide holes 120. It can also serve as a baseline for the positioning of.

In addition to the configuration described above, alignment lines 161 and 162 for recombination / reassembly of the impression material 200 and the surgical guide member 110 may be formed in the inner groove of the surgical guide member 110. In some embodiments, alignment lines 161 and 162 may be formed on the inner surface of both side walls 112 and / or the inner surface of the base plate 111. The alignment lines 161 and 162 may be grooves. It may have a groove or a protrusion, and the present embodiment discloses a groove shape.

4 and 6, after the surgical guide member 110 is seated in the oral cavity with the impression material 200 being placed in the inner groove of the surgical guide member 110, the position of the fixed source is placed. Tomography is performed, whereby a tomography image of the jawbone (especially the alveolar bone) and the surgical guide member 110 is obtained at the same time. After the tomography, the impression material 200 and the surgical guide member 110 that receive the shape of the gum and the tooth are separated to the outside of the oral cavity in an assembled state, and the surgical guide is based on the tomography image. The forming of the guide hole 120 penetrating the member 110 and the impression material 200 is performed.

In this process, when the impression material 200 is removed from the surgical guide member 110, the impression material 200 must be accurately recombined to the original position of the surgical guide member 110, that is, the position during tomography, the guide hole. The surgical guide mechanism 100 having the 120 can be accurately reinstalled at the same position (position at tomography) in the oral cavity. Therefore, when the alignment line 112b of the groove shape is formed in the surgical guide member 110 as in the present invention, an alignment protrusion corresponding to the alignment line 112b is formed on the surface of the impression material 200, When the impression material 200 is recombined to the surgical guide member 110 becomes an assembly standard for reassembly.

In addition, the guide hole 120 is provided with a tool guide tube 121 axially penetrated to form an entry path of the drill (surgical tool), and the tool guide tube 121 is replaceable with a different diameter. It is preferred and can be made of titanium.

Hereinafter, with reference to Figures 4 to 8 will be described an embodiment of the guide hole forming method of the surgical guide mechanism according to the present invention.

The guide hole forming method according to the present invention is a method of forming the guide hole 120 in the surgical guide member 110 by using the tomography image, in the present embodiment the insertion hole or at the buccal side of the maxillary (10) A case of forming a punched hole such as a surgical hole and the like will be described. Based on the example of forming the implantation hole, the surgical guide member 110 is installed in the oral cavity to cover the mounting position of the fixed circle 30 (S410), the surgical guide member 110 at this time As described above, the fixing member is covered with the impression material 200 as a medium.

Next, when tomography is performed while the surgical guide member 110 is installed in the oral cavity, the surgical guide member 110 is acquired as a tomography image along with the alveolar bone (S420). In more detail, the alveolar bone 310 and the surgical induction member 110 are simultaneously tomographically acquired and obtained as a tomography image. The tomography may be performed by the above-described cone beam computed tomography (CBCT) imaging. Here, the CBCT imaging is a photographing method for obtaining multiplanar recontruction images (MPR) using cone-shaped stereoscopic radiation, and in this embodiment, using On-demand software (CyberMed Inc., Korea) Tomographic images were obtained. And based on the data extracted by the tomography image, that is, the step of diagnosing / determining the position and angle of the formation of the perforation hole 311, in particular the implantation hole to be formed in the jawbone.

When the position and angle of the insertion hole 311 is set, the specification of the guide hole 120 to be formed in the surgical guide member 110 by using the formation position and the formation angle of the insertion hole (source; position, angle, Deriving the size, etc.) is performed (S430). The tomography image accurately shows the positional relationship between the surgical guide member 110 and the alveolar bone 310, so that the state of the alveolar bone 310 in which the fixed circle 30 is to be placed can be seen, and through the tomographic image. When the position and the formation angle of the insertion hole 311 is determined by the operator, the positional relationship between the insertion hole 311 and the surgical guide member 110 can be derived. In addition, the inlet position and the penetration angle of the guide hole 120 to be formed in the processing plate 112a may be derived based on the tomographic image.

Next, the processing according to the specification of the guide hole 120, that is, the inlet position and the processing angle of the guide hole 120 in the surgical guide member 110 separated to the outside of the oral cavity with the impression material 200. Guide hole processing step (S440) for forming the guide hole 120 in the plate (112a) is performed. In addition, the surgical guide member 110 in which the guide hole 120 is formed, that is, the surgical guide 100 is remounted together with the impression material 200 at a position at the time of tomography in the oral cavity, and the surgical tool is placed on the jawbone. It guides to a predetermined position of, ie, the formation position of the insertion hole 311 diagnosed / determined through the tomography image. Here, the tool guide tube 121 is inserted into the guide hole 120 to guide the surgical tool more accurately to a predetermined position of the mounting hole.

An embodiment of the method of forming the guide hole will be described in more detail with reference to FIGS. 6 to 8 as follows.

First, step (a) is performed by the operator to determine the position and angle of the insertion hole through the tomographic image. Next, the guide to be formed on the processing plate 112a based on the position and angle of the insertion hole. (B) deriving the entrance position and angle of the hole 120 and (c) forming the guide hole in the processing plate 112a based on the entrance position and angle of the guide hole 120 are performed. do.

At this time, the tomographic image used for determining the position and angle of the implantation hole, as shown in Figure 6 (a) of the narrow direction of the gums, that is, the narrowing direction in which the jaw is cut in the direction from the cheek to the tongue side. A longitudinal cross-sectional image (hereinafter referred to as a first cross-sectional image) and a cross-sectional image perpendicular to the first cross-sectional image (hereinafter referred to as a second cross-sectional image) as shown in FIG. 6 (b). The first cross-sectional image is obtained perpendicular to the outer surface of the processing plate 112a, and the second cross-sectional image is also obtained perpendicular to the outer surface of the processing plate 112a.

The second cross-sectional image may be a cross section parallel to the occlusal surface of the upper and lower teeth, and more particularly, the present invention uses only the first cross-sectional image and the second cross-sectional image of two cross-sectional images. It provides a method of simply and easily setting the position and angle of the guide hole 120 and processing the guide hole 120 in the processing plate (112a) based on this. And according to the present invention, when processing the guide hole 120 in the processing plate (112a) to easily form the guide hole 120 without using expensive precision processing equipment (for example, CNC equipment). Can be.

Referring to FIG. 6, the axis of the virtual implantation hole 311a according to the implantation hole formation position diagnosed / determined in the first cross-sectional image (see FIG. 6A), that is, the orientation of the anchoring circle (axis of the implantation hole) Direction (X) (hereinafter referred to as a first axis) and an intersection point (hereinafter referred to as a first intersection point) and an intersection angle (hereinafter referred to as a first axis line) and an outer surface of the processed plate 112a that are perpendicular to the outer surface of the processed plate. First processing data regarding an angle α formed by the line segment and the first axis (hereinafter referred to as a first intersection angle) may be extracted.

Then, the axis of the virtual implantation hole 311b according to the implantation hole formation position set in the second cross-sectional image (refer to (b) of FIG. 6), that is, the implantation direction of the fixed circle 30 (axial direction of the implantation hole). And an intersection point (hereinafter referred to as a second intersection point) and an angle of intersection (hereinafter referred to as a second axis line) and an outer surface of the processed plate 112a and an angle of intersection (the line segment perpendicular to the outer surface of the processed plate). The second processing data relating to the second crossing angle of the angle? Formed by the second axis or less) is extracted.

In the present embodiment, the processing plate (112a) has two corners perpendicular to each other, the first cross-sectional image is a longitudinal cross-sectional image obtained perpendicular to any one of the two corners, the second cross section The image is a cross-sectional image obtained perpendicular to the other one of the two corners. Therefore, the first cross-sectional image is obtained in parallel with one corner perpendicular to the second cross-sectional image, and is a cross section perpendicular to the second cross-sectional image.

In more detail, in the present embodiment, both side walls 112 applied to the processing plate 112a are rectangular or square, each of which is a rectangular plate or a square, and the base plate 111 is also a rectangular plate shape. The four angles are all rectangular or square. When the processing data for the formation of the guide hole is calculated using the two cross-sectional images as described above, the first line segment X1 perpendicular to the first cross-sectional image and passing through the first intersection point as shown in FIG. The point where the second line segment Y1 perpendicular to the second cross-sectional image meets the second intersection point may be derived on the outer surface of the processed plate 112a. The point where the first line segment X1 and the second line segment Y1 meet is a center of a position at which machining is started by the machining tool, and an entrance center of the guide hole 120 to be processed in the surgical guide member 110. Becomes

The surgical tool for forming the guide hole 120 on the basis of the first cross angle (α) and the second cross angle (β) simultaneously or sequentially with the derivation of the entrance center of the guide hole 120 and the Two machining angles alpha and beta formed by the outer surface of the working plate 112a are derived. As described above, the derivation of the two machining angles may be sequentially performed before or after the derivation of the inlet center position 121 of the guide hole.

 The two machining angles include a first machining angle α in the first cross-sectional image and a second machining angle β in the second cross-sectional image, wherein the first machining angle α is the first machining angle α. An angle formed by the line segment S1 perpendicular to the outer surface of the processing plate 112a and the first axis X on the two-dimensional plane of the first cross-sectional image, and the second machining angle α is the second angle. An angle between the line segment S2 perpendicular to the outer surface of the processing plate 112a and the second axis line Y is formed on a two-dimensional plane of the cross-sectional image.

In addition, in order to form the guide hole 120 in the processing plate 112a of the surgical guide member by one-axis rotational movement while the processing tool provided in the guide hole processing device moves along an axis line, The surgical guide member 110 should be rotated about two axes in accordance with the machining axis. In other words, as in a processing apparatus of a type in which the axis of the machining tool (for example, a drill) is fixed, the machining tool moves the guide hole 120 toward the surgical guide member and the machining plate 112a. In order to process the guide hole in the surgical guide member with a general-purpose drill machine of one axis rotation and forward and backward type formed in the state, the surgical guide member 110 is rotated in accordance with the axis of the machining tool Should be

In the present invention, by using only the first cross-sectional image and the second cross-sectional image by rotating the surgical guide member 110 based on only two coordinate reference axis, the guide hole of the surgical guide member 110 for the processing tool It provides a simple and easy method of setting the machining angle in three dimensions (three dimensions).

In more detail, the first axis of rotation perpendicular to the first cross-sectional image and the second axis of rotation perpendicular to the second cross-sectional image are set as coordinate reference axes of the fixed coordinate system, and the outer surface of the processed plate 112a is When the surgical guide member is rotated by the first machining angle α and the second machining angle β based on a state perpendicular to the axis of the machining tool, the three-dimensional machining angle of the guide hole may be set. Can be. In other words, a state in which the outer surface of the processing plate 112a is perpendicular to the axis of the machining tool is regarded as an initial reference state, and the surgical guide member 110 is moved about the first rotational axis based on this state. By rotating the first machining angle α and at the same time as the second machining angle β about the second rotational axis, the three-dimensional machining angle of the guide hole desired by the operator is set.

More specifically, when the first machining angle α is 30 ° and the second machining angle β is −25 °, the outer surface of the working plate 112a is perpendicular to the axis of the machining tool. In the initial state, the surgical guide member 110 is rotated 30 ° counterclockwise with respect to the first rotation axis, and is rotated 25 ° clockwise with respect to the second rotation axis perpendicular to the first rotation axis. After being disposed on one side of the machining tool, the machining tool advances along the axis to process the guide hole 120 in the workpiece plate 112a. Of course, the rotation of the surgical guide member about the second rotation axis may be performed first.

On the other hand, when the entrance position of the guide hole, that is, the entrance center 121 is determined by the first line segment X1 and the second line segment X2 on the computer, the point of the entrance position 121 and the outside of the processing plate Among the reference points 130 provided on the surface, a distance (l, m, n) of any three reference points 130a, 130b, and 130c, for example, the three reference points located closest to each other, is calculated on a computer. do.

As shown in FIG. 8, the distance between the three reference points 130a, 130b, 130c and the inlet position of the guide hole is set as a radius, respectively, to center the three reference points 130a, 130b, 130c. If three circles are drawn, one machining reference point at which the three circles intersect is inversely calculated, and the marking reference point is displayed on the outer surface of the processing plate 112a using a marking means such as a pen. .

The processing reference point becomes an initial entry position of the processing tool for forming the guide hole 120, which in turn becomes an inlet of the guide hole 120 formed in the surgical guide member 110. In addition, when the surgical guide member 110 is rotated in accordance with the axis of the machining tool, the machining tool sequentially penetrates through the machining plate 112a and the impression material 200 with the machining reference point as the starting point. The guide hole 120 according to the position and angle set in the image is formed at the same time on the surgical guide member 110 and the impression material 200.

Accordingly, the guide hole 120 can accurately guide the surgical tool forming the drilling hole 311, that is, the insertion hole in the jawbone, to the initial insertion hole setting position set through the tomography image. 30 can also be placed in the correct position. Of course, the surgical hole can be accurately placed at the set position in the tomography image even when the surgical hole for dental surgery is drilled in the predetermined position of the jawbone using the surgical induction mechanism manufactured in the same manner. In addition, when the surgical guide member separated from the oral cavity is difficult to be used, the impression material 200 may be separated from the surgical guide member 110 and then recombined with other surgical guide members of the same standard. Manufacturing costs can be reduced.

9 and 10 will be described an embodiment of a surgical guide manufacturing jig according to the present invention.

Guide hole manufacturing jig 500 of the surgical guide mechanism according to the present invention is installed in a guide hole processing apparatus, for example, drill equipment, the surgical induction based on the axis of the machining tool 400 in accordance with the guide hole processing angle It is a device which rotates and supports the member 110. The jig 500 includes rotation units 510 and 520 and a base unit 530 supporting the rotation unit. The rotary units 510 and 520 rotate the surgical guide member 110 to form an axis of the machining tool 400 and an upper surface of the surgical guide member 110, more specifically, the processing plate 112a. Adjust the angle of the outer surface.

That is, the jig 500 rotates the surgical guide member so that the processing plate 112a of the surgical guide member is processed according to the specification of the guide hole 120 by the tomography image, and when the tool is processed by the machining tool. The surgical guide member is fixed and supported so as not to move. The base unit 530 faces the machining tool 400 and forms a machining reference plane perpendicular to the axis of the machining tool 400. The rotating units 510 and 520 are mounted by the base unit 530 and are rotatably supported by the first rotating body 520 and the first rotating body 520. It is configured to include a body (510).

The first rotating body 520 and the second rotating body 510 are rotated in a staggered direction, more specifically in a staggered direction at an angle of 90 degrees. That is, the first rotation shaft and the second rotation shaft described above become rotation center axes of the first rotation body 520 and the second rotation body 510, respectively, and the rotation shafts are staggered by 90 degrees. Here, the base unit 530 has a first rotary support 531 for supporting the rotation of the first rotary body 520 and a base body 532 provided with the first rotary support, the first rotation The support part 531 includes a first guide rail 531a for guiding the rotation of the first rotating body 520.

The first rotating body 520 is slidably seated on the second rotating support part 521 and the first rotating support part 531 to support the rotation of the second rotating body 510 ( 522, and the second rotation support part 521 includes a second guide rail 521a for guiding rotation of the second rotation body 510. The first rotary support 531 is formed in the upper surface is curvature in the shape of an arc-shaped semi-circular plate or fan-shaped, the first guide rail 531a in the arc direction of the first rotary support 531 of the groove or protrusion It is formed into a shape. In addition, the second rotary support 521 is also formed in the upper surface is curvature in the form of an arc-shaped semi-circular plate or fan-shaped, the second guide rail 521a in the arc direction of the second rotary support 521 grooves or protrusions It is formed in the shape of. Here, the first guide rail 531a and the second guide rail 521a are formed in a staggered direction by 90 degrees.

In addition, the first sliding part 522 of the first rotating body 520 has a shape corresponding to the first rotating support part 531, and the first sliding part 522 is connected to the first guide rail 531a. The first guide member 522a has a protrusion or groove shape to correspond thereto. The second rotary body 510 has a second sliding part 512 that is slidably seated on the second rotary support 521, and the surgical guide member 110 is attached to the second rotary body 510. There is provided a member mounting portion 511 to be mounted. The second sliding part 512 of the second rotating body 510 has a shape corresponding to the second rotating support part 521, and the second sliding part 512 corresponds to the second guide rail 521a. The second guide member 512a having a protrusion or groove shape may be provided.

In the present embodiment, the processing member seating portion 511 includes a seating groove 511a into which the surgical guide member 110 is inserted, and the seating groove 511a of the surgical guide member 110. As a shape corresponding to the outer shape, in the present embodiment, it may be configured as a substantially rectangular groove. The first rotating body 520 and the second rotating body 510 may be provided with an angle display unit G2 for indicating a rotation angle of the first rotating body and the second rotating body, respectively. Of course, the angle display unit may be provided in the base unit 623 and the first rotating body 520.

Accordingly, when the first rotating body 520 is rotated by the first machining angle, and the second rotating body 510 is rotated by the second machining angle, the machining angle of the guide hole for the processing plate is set. do. Of course, the first rotary body 520 may be rotated by the second machining angle, and the second rotary body 510 may be rotated by the first machining angle, in which case the mounting direction of the surgical guide member is It must be different.

In addition, the jig 500 according to the present embodiment has a first fixing member 533 for restraining the rotation of the first rotating body 520, and a second for restraining the rotation of the second rotating body 510. It further includes a fixing member (523). In the present exemplary embodiment, the first rotating body 520 and the second rotating body 510 are screwed to the base unit 530 and the first rotating body by the fixing members 523 and 533. 520, respectively. Accordingly, the first rotating body 520 and the second rotating body 510 may be prevented from moving when the guide hole 120 is processed by the processing tool 400.

The surgical guide member 110 is processed in the same manner as described above, the surgical guide member 110 is seated in the oral cavity as a surgical induction mechanism, the operator using a dental drill perforating the insertion hole and the like in the alveolar bone 310 In the process, the guide hole 120 guides the dental drill to the correct position. Meanwhile, the above-described embodiments have been described based on the case in which the fixed circle 30 is operated on the maxilla, and when the fixed circle 70 is performed on the mandible, the surgical guide member is turned upside down. It is installed in the lower jaw. And the surgical guide member may be formed longer than the other one of the two side walls as shown in Figure 11 longer than the other, for example, drilled or drilled a drill hole toward a predetermined portion of the root or root root It can be applied in situations such as drilling holes in the bottom.

Having looked at the preferred embodiment according to the present invention as described above, in addition to the embodiment described above, the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

The present invention relates to a surgical guide device for guiding a dental drill at a precise angle to the precise processing position of the jaw bone, in particular, has the industrial applicability in the orthodontic appliance field and implant field, and is easy to manufacture, the operator It can improve the convenience and accuracy of correction / procedure.

Claims (4)

After performing tomography with a surgical guide member having a flat plate on its outer surface installed in the oral cavity, surgery to form one of the orthodontic orthodontic holes and the dental surgical hole in the jaw bone A guide hole forming method of a surgical guide mechanism for forming a guide hole of a tool in the plate using a tomographic image obtained by the tomography: The tomographic image may include a first cross-sectional image which is a longitudinal cross-sectional image obtained in a narrow direction perpendicular to the outer surface of the processed plate, and a second cross-sectional image which is a cross-sectional image perpendicular to the outer surface of the first cross-sectional image and the processed plate. It includes; (A) determining the position and angle of formation of the perforation holes in the first and second cross-sectional images; (B) deriving the inlet position and the processing angle of the guide hole to be formed on the processing plate based on the formation position and angle of the drilling hole determined through the step (a); And (c) forming the guide hole in the processed plate of the surgical guide member based on the inlet position and the processing angle of the guide hole. The method of claim 1, Step (b) is; First processing data about a first intersection point and a first intersection angle formed by a first axis line extending in the axial direction of the drilling hole and an outer surface of the processing plate formed at the formation position of the drilling hole determined in the first cross-sectional image. And a second machining point corresponding to a second intersection point and a second crossing angle formed by a second axis line extending in the axial direction of the drilling hole and an outer surface of the processing plate at a position where the drilling hole is determined in the second cross-sectional image. Guide hole forming method of the surgical guide device, characterized in that for extracting data. The method of claim 2, Step (b) is; The first line segment passing through the first cross point and perpendicular to the first cross section image, and the second line segment crossing the second cross point and perpendicular to the second cross section image, meet on the outer surface of the processed plate. (B1) deriving to the entrance position of the guide hole, Before or after the step (b1) or at the same time as the step (b1), the processing on the two-dimensional plane of each of the first cross-sectional image and the second cross-sectional image based on the first and second cross angles (B2) deriving two machining angles formed by a line segment perpendicular to the outer surface of the plate and a machining tool for machining the guide hole; The two processing angles may include a first processing angle formed by a line segment perpendicular to an outer surface of the processing plate on a two-dimensional plane of the first cross-sectional image, and a two-dimensional plane of the second cross-sectional image. A guide hole forming method of a surgical guide mechanism consisting of a line segment perpendicular to the outer surface of the processed plate and the second machining angle formed by the second axis. As a surgical guide member installed in the oral cavity through the impression material for forming the guide hole of the surgical guide mechanism according to claim 1 and obtained with the alveolar bone as the first cross-sectional image and the second cross-sectional image: A base plate covering the tooth in a state mounted in the oral cavity, and both side walls provided at both ends of the base plate to form an inner groove in which the impression material is placed; At least one of the two side walls are three or more reference points are displayed on the outer surface is applied to the surgical guide member.

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