KR102022452B1 - Simulation plate for manufacturing born plates and method for manufacturing born plates using the same - Google Patents

Abstract

According to one embodiment of the present invention, since the bone plate is manufactured based on the pre-simulation of the position, the insertion depth, and the insertion angle of the screw using the test plate before the bone plate is coupled to the bone, the operation time of the operator is reduced, Provide a test plate that can increase the convenience and efficiency of the operator. Test plate according to an embodiment of the present invention, the body portion formed of a synthetic resin material; And a processing hole provided in at least one main body and penetrating from an upper surface of the main body to a lower surface of the main body.

Description

Test plate for bone plate production and bone plate manufacturing method using same {SIMULATION PLATE FOR MANUFACTURING BORN PLATES AND METHOD FOR MANUFACTURING BORN PLATES USING THE SAME}

The present invention relates to a test plate for producing a bone plate and a bone plate manufacturing method using the same, and more specifically, the position of the screw, insertion depth, insertion angle using a test plate before coupling the bone plate to the bone in advance Since the plate is produced based on the simulation after the simulation, and to reduce the operating time of the operator, relates to a test plate that can increase the convenience and surgical efficiency of the operator.

3D printing is a process of manufacturing a three-dimensional solid object by stacking a specific material in the form of powder, liquid, solid (thread, wire, pellet), and digitizing it into a virtual object through a three-dimensional design. , By stacking very thin sections (about 0.015 to 0.10 mm) one by one to produce the result.

 Also called additive manufacturing (AM), this concept is contrary to the subtractive manufacturing method of cutting or cutting three-dimensional objects through machining. 3D printing has been used for the production of prototypes and prototypes since it was first developed. In recent years, however, the scope of use has been expanded due to technological progress and economic feasibility, which has widespread influence.

In general, when a bone fracture occurs due to an accident, various treatments are considered to prevent the bone from recovering or functioning as it is, for example, a simple fracture such as cracks in the bone, Surgical operation in which a fractured bone cannot be moved in a fractured state, such as a fractured state and a broken bone is displaced from each other. The bone can be supported by using a bone plate of metal so as to align the fractured bone directly.

However, when using the present plate of the prior art, the operator proceeds the operation by judging the insertion position of the screw, the insertion angle of the screw, the insertion depth of the screw and the like by the operator's self-determination according to the damaged part of each patient, the operation time There is an increasing problem. In addition, there is a problem that bone loss may occur due to unexpected drilling.

Korean Patent No. 10-1603789 (name of the present invention: the bone plate system) includes: a bone plate having at least one locking hole in which a first female thread is formed; A head tapered to reduce the diameter along a central axis by being fastened to the at least one locking hole, a shaft extending from the head, and a first male screw formed on the head to be fastened to the first female screw; A bone plate system is disclosed that includes a locking screw having a second male thread that is formed in the shaft to engage a bone.

Republic of Korea Patent No. 10-1603789

An object of the present invention for solving the above problems is to reduce the operating time of the operator during surgery using the bone plate.

It is also an object of the present invention to prevent unexpected surgical procedures, thereby minimizing bone loss.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

The configuration of the present invention for achieving the above object, the main body portion formed of a synthetic resin material; And at least one processing hole provided in the main body and penetrating from an upper surface of the main body to a lower surface of the main body, wherein the main body is formed by a laminated manufacturing method. The bone plate formed with a screw hole along the shape is characterized by being formed by a laminated manufacturing method.

In an embodiment of the present disclosure, the screw hole may be formed by applying a shape change value of changing a shape value of the processing hole formed in the main body.

In an embodiment of the present invention, the body portion at least one selected from the group consisting of acrylic resin, polyethylene resin, polyvinyl chloride resin, polypropylene resin, nylon, phenol resin, melamine resin, silicone resin, urea resin and epoxy resin It may be formed of a synthetic resin.

In an embodiment of the present invention, the bone plate may be formed of metal or ceramic.

In an embodiment of the present invention, the screw hole may be formed to be inclined with respect to the upper surface of the bone plate.

In an embodiment of the present invention, the upper portion of the screw hole and the lower portion of the screw hole may have a diameter of different sizes.

In an embodiment of the present invention, the lower surface of the body portion may be formed in a shape in close contact with the bone.

The configuration of the present invention for achieving the above object, the main body portion formed of a synthetic resin material; And a guide hole provided in at least one main body part and penetrating from an upper surface of the main body part to a lower surface of the main body part, wherein the main body part is formed by a laminated manufacturing method and separated from each other. An upper portion and a lower portion of the main body portion are formed to be coupled, and the upper portion of the main body portion is positioned on an upper surface of the existing bone plate prepared in advance, and a temporary screw hole is formed in the existing bone plate using a guide hole formed in the upper portion of the main body portion. can do.

In an embodiment of the present invention, the female screw thread and the screw head coupling portion may be formed in the temporary screw hole.

Configuration of the present invention for achieving the above object, i) obtaining a bone image which is a three-dimensional image of the bone; ii) forming the main body part in a laminated manufacturing method using the bone image, and forming a processing hole in the main body part; iii) bringing the body portion into close contact with the bone and obtaining a shape change value for the processing hole; iv) applying a shape change value to obtain a plate image which is a three-dimensional image of the bone plate on which the screw hole is formed; v) forming the bone plate in a laminate manufacturing manner using the plate image; And vi) coupling the bone plate to the bone.

In an embodiment of the present disclosure, in the step iii), the shape change value may be transferred to the 3D image generating unit using a mobile communication device.

The effect of the present invention according to the configuration as described above, before the coupling of the bone plate to the bone using a test plate in advance to simulate the position of the screw, the insertion depth, the insertion angle after the bone plate is produced based on this, the operator's surgery By reducing the time, the operator's convenience and surgical efficiency is increased.

In addition, the effect of the present invention is that the bone plate is prepared after the arrangement of the screw arrangement by the simulation, thereby preventing the unexpected surgical procedure in advance minimizes bone loss, and shortens the postoperative recovery time.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a schematic diagram of the bone plate is bonded to the bone according to an embodiment of the present invention.
2 is a perspective view of a main body part having a processing hole according to an exemplary embodiment of the present invention.
3 is a cross-sectional view of a main body portion having a processing hole according to an embodiment of the present invention.
4 is a perspective view of the bone plate is formed with a screw hole according to an embodiment of the present invention.
5 is a cross-sectional view of the bone plate according to an embodiment of the present invention.
Figure 6 is a perspective view of the main body portion formed according to an embodiment of the present invention separated into the upper and lower.
FIG. 7 is a cross-sectional view of a main body part separated into upper and lower parts according to an embodiment of the present invention. FIG.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. "Includes the case. In addition, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of the bone plate 300 is coupled to the bone according to an embodiment of the present invention, Figure 2 is a main body portion 100 is formed with a processing hole 200 according to an embodiment of the present invention 3 is a cross-sectional view of a main body 100 in which a processing hole 200 is formed according to an exemplary embodiment.

And, Figure 4 is a perspective view of the bone plate 300 is formed with a screw hole 310 according to an embodiment of the present invention, Figure 5 is a cross-sectional view of the bone plate 300 according to an embodiment of the present invention. .

In FIG. 4, in order to facilitate understanding through comparison with FIG. 2, the female thread 311 and the screw head coupling portion 312 may be omitted.

3 is a cross-sectional view taken along the line AA ′ of FIG. 2, and FIG. 5 is a cross-sectional view taken along the line BB ′ of FIG. 4.

In FIGS. 2 and 4, since the main body 100 and the bone plate 300 are bent, the bottom surface of the main body 100 and the bottom surface of the bone plate 300 should be displayed in FIGS. 3 and 5. In order to understand the formation of the hole 200 and the screw hole 310, the expression of the bottom surface of the body portion 100 and the bottom surface of the bone plate 300 may be omitted.

As shown in Figure 1 to Figure 5, the test plate of the present invention, the main body portion 100 formed of a synthetic resin material; And a processing hole 200 provided in at least one main body 100 and penetrating from an upper surface of the main body 100 to a lower surface of the main body 100.

In addition, the body part 100 is formed by a lamination manufacturing method, and the plate 300 is laminated along the shape of applying a shape change value of the shape value of the processing hole 200 formed in the body part 100. It can be formed by a manufacturing method.

Here, the additive manufacturing (AM) method may mean a 3D printing method using a 3D printer.

The lower surface of the body portion 100 may be formed in a shape that is in close contact with the bone.

The processing hole 200 is formed in the main body 100 to manufacture the test plate of the present invention, and the main body 100 in which the processing hole 200 is formed is combined with the bone 10 of the subject and fractured surgery The bone 10 of the ruler can be fixed.

At this time, the body portion 100 and the processing hole 200 may be formed by inputting a bone image, which is a three-dimensional image obtained by using an MRI image or a CT image of the bone 10 of the subject, to a 3D printer. Accordingly, the bottom surface of the body portion 100 may be formed such that the bottom surface of the body portion 100 in contact with the bone 10 of the subject is stably in close contact with the surface of the bone 10 of the subject.

The test plate of the present invention is not directly coupled to the bone, but may be used for the purpose of performing a simulation in advance for the production of the bone plate 300 to combine with the bone.

In addition, the screw hole 310 formed in the bone plate 300 may be formed by applying a shape change value of changing the shape value of the processing hole 200 formed in the main body part 100.

Specifically, before manufacturing the bone plate 300 to be bonded to the fracture site of the subject, the test plate of the present invention is prepared, and the test plate of the present invention is placed on the fracture site of the subject, and then the processing hole 200 ) Determine the position of the screw hole 310 suitable for surgery, the depth of the screw hole 310, the shape of the screw hole 310, and by changing the shape value of the machining hole 200, the screw hole 310 It is possible to obtain a shape change value that can derive the shape of.

2 and 3, the main body 100 in which the processing hole 200 is formed may have a shape that is not suitable for surgery, and the main body 100 in which the processing hole 200 is formed is operated on. Located at the fracture site of the ruler to derive the shape change value, in Figure 3, the left machining hole 200 is changed in the insertion angle of the screw is derived a shape change value such as a dotted line overlapping the left machining hole 200, the center The processing hole 200 of the screw is changed in the insertion depth of the shape change value, such as a dotted line overlapping the center processing hole 200 is derived, the right processing hole 200 is the size of the screw is changed to the right processing hole ( A shape change value such as a dotted line adjacent to 200 may be derived. The plate 300 may be manufactured to form the shape of the screw hole 310 as shown in FIGS. 4 and 5 by applying the respective shape change values.

The shape change value, as indicated by the dotted line in FIG. 3, is derived by the display operation of the main body 100 or the acquisition of a numerical value, or by the partial drilling operation of the machining hole 200 of the main body 100. Can be derived.

After deriving the shape change value suitable for surgery through the simulation, the test plate of the present invention can be removed from the fracture site of the subject, and the shape change value for the processing hole 200 is applied to the fracture site of the subject. The bone plate 300 to be directly bonded may be formed by a laminate manufacturing method.

Here, by analyzing the shape change value for the processing hole 200 to obtain a plate image, which is a three-dimensional image, and input such a plate image to the 3D printer, and performs the laminate manufacturing according to the plate image plate 300 Can be formed.

As shown in FIG. 5, the screw hole 310 may be formed to be inclined with respect to the upper surface of the bone plate 300. Alternatively, the upper portion 310a of the screw hole and the lower portion 310b of the screw hole may have diameters of different sizes.

As shown in the left screw hole 310 in FIG. 5, when the bone 10 of the operator and the bone plate 300 are coupled, the screw may be inclinedly coupled to the upper surface of the bone plate 300. For this purpose, the screw hole 310 may be inclined with respect to the upper surface of the plate 300. That is, by forming the screw hole 310 inclined, it is possible to adjust the insertion angle of the screw.

In addition, as shown in the center screw hole 310 in Figure 5, when the bone 10 of the operator and the bone plate 300, the insertion depth of the screw can be arbitrarily set, the upper portion 310a of the screw hole ), The screw head is positioned and the upper portion 310a of the screw hole and the lower portion 310b of the screw hole may have different diameters so that the screw body is coupled to the lower portion 310b of the screw hole. That is, by adjusting the diameter ratio of the upper portion 310a of the screw hole and the lower portion 310b of the screw hole, the insertion depth of the screw can be adjusted.

5, the screw hole 310 is formed to be inclined with respect to the upper surface of the plate 300 as shown in FIG. 5, and the upper part 310a of the screw hole and the lower part 310b of the screw hole are formed. You can also adjust the ratio of the diameter.

3 and 5, the processing hole 200 formed in the test plate of the present invention and the screw hole 310 formed in the bone plate 300 may be formed in a different shape.

The processing hole 200 formed in the main body 100 is formed to guide the insertion position, the insertion angle, the insertion depth, and the like of the screw used to connect the bone plate 300 and the bone. ) And the screw head coupling portion 312 may not be formed.

Specifically, as shown in Figure 5, the screw hole 310 formed in the bone plate 300, the screw head is introduced into the bone plate 300 so that the screw head does not protrude on the surface of the bone plate 300 A screw head coupling portion 312 may be provided, and a female thread 311 may be provided to allow the male thread of the screw to be coupled thereto, and the screw head coupling portion 312 may be provided in the main body 100 in which the processing hole 200 is formed. ) Or the shape of the female thread 311 may not be formed.

When the bone plate 300 is formed by the additive manufacturing method, the screw head coupling portion 312 and the female thread 311 may be formed in the screw hole 310.

The main body 100 may be formed of one or more synthetic resins selected from the group consisting of acrylic resins, polyethylene resins, polyvinyl chloride resins, polypropylene resins, nylons, phenol resins, melamine resins, silicone resins, urea resins, and epoxy resins. have.

In the embodiment of the present invention, the main body 100 is described as being formed of the above materials, but is not limited thereto, and the main body 100 may be formed of a material having a predetermined strength and easily drilling. Can be.

The plate 300 may be formed of metal or ceramic.

In detail, the bone plate 300 may be formed of a titanium alloy, an aluminum alloy, stainless steel, a shape memory alloy, or a ceramic.

In an embodiment of the present invention, the plate 300 is described as being formed of the above materials, but is not limited thereto, and the plate 300 may include carbon fiber, carbon polymer or other polymers, various metals, bones, Bio-resorbable, composites, and combinations thereof.

6 is a perspective view of the main body 100 according to an embodiment of the present invention separated into the upper and lower, Figure 7 is a main body 100 according to an embodiment of the present invention to the upper and lower It is sectional drawing about separated matter.

FIG. 7 is a cross-sectional view taken along the line CC ′ of FIG. 6.

6 and 7, the test plate of the present invention, the main body portion 100 formed of a synthetic resin material; And at least one guide hole 111 provided in the main body part 100 and penetrating from an upper surface of the main body part 100 to a lower surface of the main body part 100. The main body part 100 includes: Formed by a laminated manufacturing method, the upper portion 110 and the lower portion 120 of the main body portion separated from each other is formed by combining, the upper portion 110 of the main body portion is placed on the upper surface of the existing bone plate prepared in advance, the main body A temporary screw hole may be formed in the existing bone plate by using the guide hole 111 formed in the upper part 110 of the part.

In addition, the female thread 311 and the screw head engaging portion 312 may be formed in the temporary screw hole.

As seen above, the existing plate may be processed to perform the same function as the plate 300.

Specifically, first, the lower portion 120 of the main body portion may be formed in the same shape as the existing bone plate. In addition, the upper portion 110 of the main body portion may be formed in a shape that can be coupled to the upper surface of the lower portion 120 of the main body portion.

The main body 100 (hereinafter referred to as a main body assembly) where the upper part 110 of the main body part and the lower part 120 of the main body part are coupled is positioned at the fracture site of the subject, and the main body assembly is drilled to perform screws The guide hole 111 may be formed in the upper portion 110 of the main body according to the insertion angle of the screw or the insertion position of the screw. Thereafter, the upper part 110 of the main body part and the lower part 120 of the main body part may be separated.

During surgery on the fracture site of the subject, after placing the existing bone plate on the fracture site of the subject, the upper portion 110 of the main body portion may be coupled to the upper surface of the existing bone plate. In addition, the drilling is performed by being guided by the guide hole 111 formed in the upper part 110 of the main body part. Accordingly, the existing bone plate is formed in the same manner as the lower part 120 of the main body part in which the processing hole 200 is formed. Temporary screw holes may be formed.

Since the temporary screw hole of the existing bone plate is not formed with the female thread 311 or the screw head coupling portion 312, when the temporary screw hole of the existing bone plate is formed as described above, the temporary screw hole of the existing bone plate After the female thread 311 and the screw head coupling portion 312 are formed, the bone plate 10 of the existing bone plate and the subject may be coupled by screws.

Hereinafter, a method of manufacturing the bone plate 300 using the test plate of the present invention will be described.

In the first step, a bone image, which is a three-dimensional image of the bone, may be acquired.

Here, the bone may be the bone 10 of the subject.

In the second step, the body portion 100 may be formed using the bone image, and the processing hole 200 may be formed in the body portion 100.

In the third step, the main body 100 can be brought into close contact with the bone, and a shape change value can be obtained with respect to the processing hole 200.

Here, the shape change value may be transmitted to the 3D image generating unit using the mobile communication device. The 3D image generating unit may mean a computer in which a program for generating a 3D image is embedded, and the mobile communication device may mean a smartphone, a touch pad, or the like. By simply transmitting the shape change value to the 3D image generating unit using a mobile communication device during surgery, the shape change value is automatically input to the 3D image generating unit to obtain a plate image.

In a fourth step, by applying a shape change value, it is possible to obtain a plate image that is a three-dimensional image of the bone plate 300, the screw hole 310 is formed.

In a fifth step, the plate 300 may be formed by using a plate image in a laminate manufacturing method.

In a sixth step, bone plate 300 may be coupled to the bone.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

10: bone of the subject 100: main body
110: upper part of the main body 111: guide hole
120: lower part of the main body 200: processing hole
300: bone plate 310: screw hole
310a: upper part of the screw hole 310b: lower part of the screw hole
311: female thread 312: screw head coupling portion

Claims (11)

A main body formed of a synthetic resin material; And
And at least one guide hole provided in the main body and penetrating from an upper surface of the main body to a lower surface of the main body.
The main body portion is formed by a laminated manufacturing method, the upper portion and the lower portion of the main body portion separated from each other is formed by combining,
Position the upper portion of the main body portion on the upper surface of the existing bone plate prepared in advance,
Test plate for producing a bone plate, characterized in that to form a temporary screw hole in the existing bone plate using a guide hole formed in the upper portion of the main body.
delete The method according to claim 1,
The body portion is formed of at least one synthetic resin selected from the group consisting of acrylic resin, polyethylene resin, polyvinyl chloride resin, polypropylene resin, nylon, phenol resin, melamine resin, silicone resin, urea resin and epoxy resin Test plate for the production of bone plates.
delete delete delete The method according to claim 1,
The upper plate of the main body portion is formed in a shape that can be coupled to the upper surface of the lower portion of the main body test plate for the plate production.
delete The method according to claim 1,
Test plate for the production of bone plate, characterized in that to form a female screw thread and screw head coupling portion in the temporary screw hole. delete delete

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