KR101675584B1 - Pin Insert Guide Module Having Alignment Rod For Total Knee Arthroplasty, and Manufacturing Method Thereof - Google Patents

Abstract

An artificial knee joint personalized surgical guide including an alignment rod and a method of making the same are published. The artificial knee joint personalized surgical guide 100 including an alignment rod according to an embodiment of the present invention is a guide for customized surgery for an artificial knee joint used for forming a tibia for an artificial knee replacement surgery, A body portion 110 having a curved surface which surrounds an upper portion of the tibia 3D model and has an inner surface having a structure corresponding to an outer surface shape of the tibia 3D model modeled on the basis of the tibia 3D data acquired through the scanning method, ); A body support 120 having an extension 125 extending in one direction from the body 110 and a first contact 121 formed at an end of the extension 125 and in contact with the tibial upper surface. A pin guide part 130 extending in one direction from the main body part 110 and having a through hole 131 into which a pin can be inserted; And an alignment rod 150 extending from the main body in a direction parallel to the mechanical axis M of the tibia.
According to the artificial knee joint personalized surgical guide of the present invention, it is possible to provide a knee joint according to the present invention, which comprises a body portion having an inner surface of a structure corresponding to an outer surface shape of a tibia 3D model, The tibia can be stably fixed to the tibia, so that the pin can be accurately and stably inserted into the tibia.

Description

 Technical Field [0001] The present invention relates to a surgical guide for a patient with artificial knee joint including an alignment rod,

The present invention relates to an artificial knee joint personalized surgical guide and a method of manufacturing the same, and more particularly, to an artificial knee joint personalized surgical guide including an aligning rod and a method of manufacturing the same.

 The total knee arthroplasty is an operation that started in earnest in the early 1970s. When the knee joint is no longer able to perform normal daily life due to various diseases or trauma, if it is severe, it does not respond to drug therapy or physical therapy. It is an operation that can relieve the pain by inserting the artificial joint made of special alloy and polymer material to the patients who can not be solved by the method, and the knee joint movement becomes possible, and at the same time the stability is obtained and the deformity is corrected.

 FIG. 1 is a view showing a femur and a tibia of a human body, and FIG. 2 is a view showing a knee joint where a femur and a tibia of a human body meet.

 Referring to these drawings, total knee arthroplasty is actively performed in patients who have difficulty in daily life due to wear of the knee joint. In the operation, the femur constituting the upper part of the knee forming the knee joint and the tibia constituting the lower part of the knee, Removing the damaged part of the patella, which is the bone covering the knee, and inserting and fixing the artificial joint enables the knee joint to move normally so that it can be walked, so that it can perform daily life without pain.

 At this time, the artificial joints are formed in various ways so as to come into contact with the upper end of the tibia, which is designed to support anatomically and mechanically weight. Therefore, in order to support the artificial joint, the upper part of the tibia should be precisely cut to support the body weight. In order to cut the artificial joint and the tibia accurately, various cutting guides and cutting blocks should be used.

 FIGS. 3 to 6 illustrate a tibia forming process during the artificial knee replacement surgery according to the prior art.

 1, the tibia forming process according to the related art is performed by (a) placing the cutting guide 30 at the upper end of the tibia, (b) using the direction alignment rod 31 to insert the cutting guide 30, (B, c), respectively. Thereafter, the pin 33 is inserted into the pin insertion port 32 formed in the cutting guide 30 to thereby stably fix the cutting guide 30 to the tibia. After the upper end of the tibia is cut using the cutting saw 40 according to the cutting guide 30 (e), it is checked whether or not the upper end of the tibia is correctly cut using the cutting surface confirmation means 50 (f, g) . Thereafter, a hole is formed in the upper end of the tibia using the drilling guide means 60, (h) the lower fixing portion 71 of the artificial knee joint is mounted (i), and the cartilage portion 72 of the artificial knee joint is mounted j, k).

 Since the mounting position and direction of the lower fixed portion 71 and the cartilage portion 72 of the artificial knee joint are determined according to the cutting tendency of the upper end of the tibia, the cutting direction of the upper end of the tibia is very important. If the cutting direction of the tibia upper end portion is incorrect and the mounting position and direction of the artificial knee joints 71 and 72 are erroneously set, a problem of walking may occur.

 Specifically, as shown in FIG. 1, the mechanical axis (M) of the femur and the tibia is positioned at an angle of 5 to 10 degrees with respect to the anatomical axis (A). The upper end of the tibia is anatomically It is necessary to cut in a direction perpendicular to the mechanical axis M because a problem arises in walking because the load can not withstand when cutting in the direction perpendicular to the axis A.

 However, as described above, the cutting guide for the knee joint surgery of the prior art has the pin 33 inserted to fix the cutting guide 30 to the upper end of the tibia so as to stably bind the tibia and the cutting guide, There is a problem that the cutting guide 30 may be twisted or deviated in the process of inserting the cutting insert 33. When the cutting guide 30 is fixed to the tibia in a state in which it is distorted or deviated, the upper end of the tibia can not be cut accurately.

Therefore, there is a need for a technique for inserting the pin into an accurate position so that the cutting guide for knee joint surgery can be stably fixed to the upper end of the tibia.

Korean Patent Laid-Open Publication No. 10-2014-0099545 (published on August 12, 2014)

An object of the present invention is to provide an artificial knee joint replacement method and an artificial knee joint replacement method which can accurately and stably insert a pin inserted at a specific position of a tibia to cut an upper end of a tibia, A patient-customized surgical guide and a method of manufacturing the same.

In order to achieve the above object, according to one aspect of the present invention, an artificial knee joint personalized surgical guide is a guide for customized operation of an artificial knee joint used for forming a tibia for an artificial knee replacement surgery, which is obtained through CT or MRI scanning A body portion having an inner surface of a structure corresponding to an outer surface shape of a tibia 3D model modeled on the basis of one tibia 3D data and having a curved surface in the form of wrapping a part of an upper portion of the tibia 3D model; A main body supporting portion having an extension extending in one direction from the main body portion and a first contact portion formed at an end of the extension portion and in contact with the tibial upper surface; A pin guide portion extending in one direction from the main body portion and having a through hole through which a pin can be inserted; And an alignment rod extending from the body portion in a direction parallel to the mechanical axis M of the tibia.

In one embodiment of the present invention, the curved surface of the body portion may be configured to simultaneously enclose the side surface and the upper surface of the upper portion of the tibia 3D model.

In one embodiment of the present invention, the first contact portion formed at the end of the extension portion of the main body support portion is protruded from the extension portion by a predetermined length, and the protruding direction of the first contact portion protruding from the extension portion is formed by a pin guide And may be a direction orthogonal to the direction of forming the through-hole.

In this case, the body support portion has another second contact portion connected to the first contact portion by a first bridge structure, and the first bridge structure includes: a first bridge portion provided at a predetermined distance from the upper surface of the tibia 3D model And a vertical connection portion connecting each of the second contact portions from both ends of the horizontal connection portion and the horizontal connection portion.

The body support portion may include a third contact portion that is connected to the vertical connection portion or the extension portion by a second bridge structure, and the second bridge structure includes: a horizontal bridge portion that is provided at a predetermined distance from the upper surface of the tibia 3D model, And a vertical connection portion connecting each of the third contact portions from both ends of the connection portion and the horizontal connection portion.

At this time, the vertical connection portion of the first bridge structure and the vertical connection portion of the second bridge structure may be formed in a direction perpendicular to the through-hole forming direction of the pin guide portion.

In one embodiment of the present invention, a slit-shaped through-hole formed in a direction orthogonal to the mechanical axis M of the tibia may be formed in the body portion.

The two or more pin guide portions may be disposed adjacent to each other, and a reinforcing member may be formed between the two or more pin guide portions to integrally connect the outer surfaces of the pin guide portions.

According to another aspect of the present invention, there is provided a method of manufacturing a guided tour guide for a patient with an artificial knee joint, comprising the steps of: a) A tibia 3D modeling step of acquiring tibia 3D data through a CT or MRI scanning method to form an image of a tibia 3D model; b) a pin and alignment load position setting step of setting the position of the pin and the alignment rod to be inserted into the tibia 3D model image; c) creating an artificial knee joint patient-specific surgical guide guide to create a pin guide, a body, a body support, and an alignment rod shape at a location corresponding to a pin location to create a shape of an artificial knee joint patient- And d) preparing a customized surgical guide for a patient with an artificial knee joint to manufacture an artificial knee joint personalized surgical guide using the generated shape data of the patient-operated surgical guide.

In one embodiment of the present invention, the step (c) of creating an artificial knee joint personalized surgical guide includes: setting a position where the main body part and the contact part are to be formed on the tibia 3D model image, setting the outer shape of the body part and the contact part step; Extracting surface data of the tibia 3D model image corresponding to the outer shape of the body portion and the contact portion; And generating a body portion and a contact portion shape having a thickness based on surface data of the tibia 3D model image corresponding to the outer shape of the body portion and the contact portion.

At this time, the thickness of the body portion and the contact portion may be 3 to 7 mm.

In one embodiment of the present invention, the step c) creating the patient-customized surgical guide includes: creating a bridge structure shape; Creating a slit-shaped through-hole shape; Or forming a reinforcing member shape that connects the outer surfaces of the pin guide portions integrally with each other.

The present invention can also provide a recording medium storing a program for causing a computer to execute the method of making the artificial knee joint personalized surgical guide.

In addition, the present invention provides a computer and a monitor for performing a program for causing a computer to execute the method of manufacturing the artificial knee joint personalized surgical guide. And a 3D printer controlled by shape data calculated according to a method of manufacturing an artificial knee joint personalized surgical guide in an arithmetic processing unit of the computer to produce an artificial knee joint personalized surgical guide. Device can be provided.

As described above, according to the artificial knee joint personalized surgical guide of the present invention, it is possible to provide a knee joint according to the present invention, which comprises a main body portion having an inner surface of a structure corresponding to an outer surface shape of a tibia 3D model, And the alignment rod formed extending in the direction parallel to the base plate (M), so that the pin can be stably fixed to the tibia and the pin can be accurately and stably inserted into the tibia.

In addition, according to the artificial knee joint personalized surgical guide of the present invention, by providing the slit-shaped through-hole formed in the direction orthogonal to the mechanical axis M of the tibia, the upper part of the tibia to be cut is orthogonal to the mechanical axis M And can be accurately and stably cut in the direction

In addition, according to the artificial knee joint personalized surgical guide of the present invention, since there is provided at least one contact portion formed in a direction orthogonal to the through-hole forming direction of the pin guide portion, the artificial knee joint can be stably fixed to the tibia, The position of the tibia can be prevented from being changed by an unintended external force. As a result, the pin can be stably inserted into the precise position of the tibia.

In addition, according to the artificial knee joint personalized surgical guide of the present invention, by providing at least one contact portion connected by a bridge structure, it is possible to provide an artificial knee joint personalized surgery guide without damaging many ligaments and muscles attached to the tibia Can be stably fixed to the tibia.

In addition, according to the artificial knee joint personalized surgical guide of the present invention, since the main body portion having the curved surface in the form of wrapping the upper part of the tibia 3D model, the main body support portion and the pin guide portion extending in one direction from the main body portion, It is possible to easily perform the operation without destroying the artificial knee joint personalized surgical guide and to easily perform the operation, and as a result, the time required for the operation can be shortened.

In addition, according to the present invention, the tibia 3D modeling step of obtaining the tibia 3D data through the CT or MRI scanning method to form the tibia 3D model image, By including a pin and an alignment load position setting step to set the position of the pin to be inserted into the model image and the position of the alignment rod, an artificial knee joint patient-specific surgical guide can be manufactured which can accurately set the position of the pin.

1 is a view showing the femur and tibia of a human body.
FIG. 2 is a view showing a knee joint part where a femur and a tibia of a human body meet.
FIGS. 3 to 6 illustrate a tibia forming process during the artificial knee replacement surgery according to the related art.
7 is a perspective view illustrating an artificial knee joint personalized surgical guide according to an embodiment of the present invention.
FIG. 8 is a front view of the artificial knee joint personalized surgical guide shown in FIG. 7; FIG.
FIG. 9 is a left side view showing the artificial knee joint patient-customized surgical guide shown in FIG.
10 is a rear view of the artificial knee joint personalized surgical guide shown in FIG.
11 is a plan view showing the artificial knee joint personalized surgical guide shown in FIG.
FIG. 12 is a schematic view showing a state in which the artificial knee joint patient-customized surgical guide shown in FIG. 7 is mounted on the tibia in an accurate direction using an alignment rod.
FIG. 13 is a schematic view showing a state in which the artificial knee joint patient-customized surgical guide according to another embodiment of FIG. 12 is mounted on the tibia.
14 is a front view showing a state in which a pin is inserted into the tibia using the artificial knee joint patient-customized surgical guide shown in FIG.
FIG. 15 is a front view showing a state in which a pin is inserted into a tibia using the artificial knee joint patient-customized surgical guide shown in FIG. 7, and the artificial knee joint personalized surgical guide is removed.
16 is a side view of another artificial knee joint personalized surgical guide according to another embodiment of the present invention.
17 is a schematic view showing a state in which the artificial knee joint patient-customized surgical guide shown in FIG. 16 is mounted on the tibia in an accurate direction using an alignment rod.
FIG. 18 is a flowchart illustrating a method of fabricating an artificial knee joint personalized surgical guide according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is "on " another member, it includes the case where there is another member between the two members as well as when the member is in contact with the other member.

Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

FIG. 7 is a perspective view illustrating an artificial knee joint patient-customized surgical guide according to an embodiment of the present invention, FIG. 8 is a front view illustrating an artificial knee joint patient-customized surgical guide shown in FIG. 9 shows a left side view showing the artificial knee joint personalized surgical guide shown in FIG. FIG. 10 is a rear view illustrating the artificial knee joint patient-customized surgical guide shown in FIG. 7, and FIG. 11 is a plan view showing the artificial knee joint personalized surgical guide shown in FIG.

Referring to these drawings, an artificial knee joint personalized surgical guide 100 according to the present embodiment includes a main body 110, a main body support 120, a pin guide 130, and an alignment rod 150 Lt; / RTI >

Specifically, the main body 110 has an inner surface having a structure corresponding to the outer surface shape of the tibia 3D model modeled on the basis of the tibia 3D data obtained through the CT or MRI scanning method, And a curved surface that surrounds the curved surface.

At this time, it is preferable that the curved surface of the main body 110 simultaneously surrounds the side surface and the top surface of the upper portion of the tibia 3D model. By simultaneously wrapping the side surface and the upper surface of the upper portion of the tibia 3D model, the artificial knee joint patient-operated surgical guide 100 according to the present embodiment can be more stably fixed to the tibia.

The main body supporting portion 120 includes an extension portion 125 extending in one direction from the main body portion 110 and a first contact portion 121 formed at an end portion of the extension portion 125 and contacting the upper surface of the tibia. Lt; / RTI > The pin guide unit 130 may have a through hole 131 extending in one direction from the main body 110 and having a pin inserted therein.

8, the first contact portion 121 formed at the end of the extension 125 of the body support 120 protrudes from the extension by a predetermined length, The protruding direction of the first contact portion 121 may be a direction orthogonal to the forming direction of the through-hole 131 of the pin guide portion 130.

7, a reinforcing member 160 may be formed between the pin guide portions 130 to integrally connect the outer surfaces of the pin guide portions 130 to each other. In this case, the strength of the pin guide portion 130 can be further reinforced, and the direction of the through hole 131 formed in the pin guide portion 130 can be more stably maintained.

Since the projecting direction of the first contact portion 121 and the forming direction of the through hole 131 are orthogonal to each other, the artificial knee joint personalized surgical guide 100 according to the present embodiment can be stably fixed to the tibia, It is possible to prevent the problem of the position of the articular patient-customized surgical guide being changed by an unintended external force, and as a result, the pin can be stably inserted into the precise position of the tibia.

7, the artificial knee joint personalized surgical guide 100 according to the present embodiment may further include a second contact portion 122 and a third contact portion 123 .

Specifically, the second contact portion 122 may be connected to the body support portion 120 by the first bridge structure 141. The first bridge structure 141 includes a horizontal connection portion 1411 provided at a predetermined distance from the top surface of the tibia 3D model and a vertical connection portion 1412 connecting the second contact portions 122 from both ends of the horizontal connection portion 1411 ). ≪ / RTI >

The third contact portion 123 may be connected to the vertical connection portion 1412 or the extension portion 125 by the second bridge structure 142. The second bridge structure 142 includes a horizontal connection portion 1421 that is spaced a predetermined distance from the top surface of the tibia 3D model and a vertical connection portion 1422 that connects each of the third contact portions 123 from both ends of the horizontal connection portion 1421. [ ). ≪ / RTI >

The vertical connection portion 1411 of the first bridge structure 141 and the vertical connection portion 1422 of the second bridge structure 142 may be formed in the same manner as the formation of the through hole 131 of the pin guide portion 130 Direction is orthogonal to the direction.

Such a structure allows the artificial knee joint patient-specific surgical guide 100 according to the present embodiment to be more stably fixed to the upper part of the tibia.

FIG. 12 is a schematic view showing a state in which the artificial knee joint patient-customized surgical guide shown in FIG. 7 is mounted on the tibia in an accurate direction using an aligning rod, and FIG. 13 is a schematic view showing an artificial knee joint according to another embodiment A schematic view showing a state in which a knee joint patient-customized surgical guide is mounted on the tibia is shown.

1 and 7, the artificial knee joint personalized surgical guide 100 according to the present embodiment includes an alignment guide (not shown) extending from the body portion in a direction parallel to the mechanical axis M of the tibia, (150).

 Specifically, as shown in FIG. 1, the mechanical axis (M) of the femur and the tibia is positioned at an angle of 5 to 10 degrees with respect to the anatomical axis (A). The upper end of the tibia is anatomically It is necessary to cut in a direction perpendicular to the mechanical axis M because a problem arises in walking because the load can not withstand when cutting in the direction perpendicular to the axis A. The artificial knee joint personalized surgical guide 100 according to the present embodiment includes an alignment rod 150 parallel to the mechanical axis M of the tibia 20 so that the artificial knee joint patient- Can be accurately positioned with respect to the mechanical axis M of the tibia 20. [ Accordingly, the artificial knee joint personalized surgical guide 100 can be fixed at the precise position of the tibia, and as a result, the pin can be inserted at the correct position.

In some cases, as shown in Fig. 13, the connecting rod 150 may be further attached with an annular rod 151 at the end of the aligning rod 150, thereby further extending the length of the aligning rod 150. Fig. In this case, it is possible to more easily adjust the direction of the alignment rod 150 to be parallel to the mechanical axis M of the tibia 20.

FIG. 14 is a front view illustrating insertion of pins into the tibia using the artificial knee joint patient-customized surgical guide shown in FIG. 7, and FIG. A pin is inserted into the tibia, and the artificial knee joint personalized surgical guide is removed.

Referring to these drawings, the artificial knee joint personalized surgical guide 100 according to the present embodiment can be stably fixed on the tibia 20, and then the pin 33 can be easily inserted into an accurate position. In addition, the artificial knee joint personalized surgical guide 100 according to the present embodiment can be easily detached from the tibia 20 after inserting the pin 33 on the tibia 20.

FIG. 16 is a side view showing another artificial knee joint patient-customized surgical guide according to another embodiment of the present invention. FIG. 17 shows the artificial knee joint personalized surgical guide shown in FIG. Is attached to the tibia.

Referring to these figures, a slit-shaped through-hole 170 formed in a direction orthogonal to the mechanical axis M of the tibia is provided in the main body 110 of the artificial knee joint personalized surgical guide 100 according to this embodiment .

17, the artificial knee joint patient-customized surgical guide 100 fixed at the correct position by the alignment rod 150 includes a slit-shaped through-hole (not shown) formed in a direction orthogonal to the mechanical axis M of the tibia 170) can be placed in the upper part of the tibia.

At this time, the upper part of the tibia can be accurately and stably cut using the slit-shaped through-hole (170).

Therefore, it is not necessary to remove the guide for the patient's artificial knee prosthesis 100 and to install a separate cutting guide, and as a result, the time required for the tibial plastic surgery can be shortened.

18 is a flowchart illustrating a method of manufacturing an artificial knee joint personalized surgical guide according to an embodiment of the present invention.

Referring to FIG. 18 together with FIG. 7, a method S100 for manufacturing an artificial knee joint patient-customized surgical guide according to this embodiment includes a tibia 3D modeling step S110, a pin and alignment rod positioning step S120, A joint-patient-customized surgical guide generation step (S130), and an artificial knee joint personalized surgical guide manufacturing step (S140).

Specifically, the tibia 3D modeling step (S110) is a step of forming a tibia 3D model image by acquiring tibia 3D data through the CT or MRI scanning method of the tibia of the subject.

The pin and alignment load position setting step S120 is a step of setting the position of the pin to be inserted into the tibia 3D model image and the position of the alignment rod.

The artificial knee joint patient customized surgical guide creation step S130 is a step of creating a shape of the pin guide portion 130, the main body portion 110, the main body supporting portion 120, and the alignment rod 150 at positions corresponding to the positions of the pins Thereby creating a shape of a surgical guide for a patient with an artificial knee joint.

A step S 130 of creating a customized surgical guide for an artificial knee joint patient sets a position where the main body 110 and the contact portions 121, 122 and 123 are to be formed in the tibia 3D model image, And setting the contour of the contact portions 121, 122, and 123, as shown in FIG. The step S 130 of creating a surgical guide for a patient with an artificial knee joint may further include a step of extracting surface data of a tibia 3D model image corresponding to an outer shape of the body 110 and the contact portions 121, Lt; / RTI >

In addition, the step S 130 of creating a surgical guide for a patient with an artificial knee joint is performed on the basis of the surface data of the tibia 3D model image corresponding to the outer shape of the body 110 and the contact portions 121, 122, And creating the shape of the portion 110 and the contacts 121, 122, and 123, respectively. At this time, the thicknesses of the main body 110 and the contact portions 121, 122, and 123 are preferably 3 to 7 mm.

In addition, the artificial knee joint personalized surgical guide generating step S130 may include: generating a shape of the bridge structures 141 and 142; creating a shape of the slit-shaped through-hole 170; The method may further include the step of creating a shape of the reinforcing member 160 connecting the outer surfaces integrally with each other.

Meanwhile, the step of manufacturing a surgical guide for a patient with an artificial knee joint (S140) is a step of manufacturing an artificial knee joint personalized surgical guide (100) using shape data of the generated artificial knee joint personalized surgical guide. At this time, the manufacturing step (S140) of the artificial knee joint personalized surgical guide can be manufactured using the rapid prototyping equipment based on the data using CAD / CAM technology.

Therefore, according to the manufacturing method (S100) of the artificial knee joint patient-customized surgical guide according to the present embodiment, the tibia 3D modeling for obtaining the tibia 3D data through the CT or MRI scanning method of the tibia of the subject, (S110), and a pin and an alignment load position setting step (S120) for setting the position of the pin to be inserted into the tibial 3D model image and the position of the alignment rod, A patient-customized surgical guide can be manufactured. According to the method S100 of manufacturing an artificial knee joint personalized surgical guide according to the present embodiment, the pin guide portion 130, the main body portion 110, the main body support portion 120, Creating a shape of a rod 150 to create a shape of an artificial knee joint patient-customized surgical guide (S130); (S140) of manufacturing an artificial knee joint personalized surgical guide (S140) that manufactures an artificial knee joint personalized surgical guide (100) using the generated shape data of the artificial knee joint patient customized surgical guide, It is easy to create customized surgical guide for an artificial knee joint that can be fixed.

The present invention can also provide a recording medium storing a program for causing a computer to execute a method (S100) of manufacturing a surgical guide for a patient with an artificial knee joint according to any one of the preceding claims.

In addition, the present invention provides a computer and a monitor for performing a program for causing a computer to execute a method (S100) of manufacturing a guide for customizing an artificial knee joint patient according to the present invention. And a 3D printer controlled by shape data calculated according to a method of manufacturing an artificial knee joint personalized surgical guide in an arithmetic processing unit of the computer to produce an artificial knee joint personalized surgical guide. Device can be provided.

According to the apparatus for manufacturing an artificial knee joint according to the present embodiment, after inserting a pin at a desired position of the tibia, the artificial knee joint personalized surgical guide can be easily removed without destroying it, And as a result, it is possible to easily produce a surgical guide for a patient with an artificial knee joint which can shorten the time required for the operation.

In the above description of the present invention, only specific embodiments thereof are described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

That is, the present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. And such variations are within the scope of protection of the present invention.

10: femur
20: tibia
30: Cutting guide
31: direction alignment load
32: Pin insertion hole
33: pin
40: Cutting saw
50: Means for cutting surface confirmation
60: Drilling guide means
70: artificial knee joint
71: lower fixing portion of the artificial knee joint
72: cartilage part of artificial knee joint
100: Customized Surgery Guide for Patients with Artificial Knee Joints
110:
120: Body support
121: first contact portion
122: second contact portion
123: third contact
125: extension part
130: pin guide portion
131: Through hole
141: First bridge structure
1411: Horizontal connection
1412: Vertical connection
142: second bridge structure
1421: Horizontal connection
1422:
150: Sort load
151: Extension rod
160: reinforcing member
170: Slit-shaped through-hole
S100: How to make a guided tour guide for artificial knee joint patients
S110: Tibia 3D modeling step
S120: Steps to Set Pin and Align Load Locations
S130: Creating a customized surgical guide for an artificial knee joint
S140: Customized Surgical Guide Manufacturing Step for Patients with Artificial Knee Joint

Claims (19)

A guide for customized surgery for an artificial knee joint used in tibia molding for an artificial knee replacement surgery,
A body having a curved surface in the form of wrapping an upper part of the tibia 3D model and having an inner surface of a structure corresponding to the outer surface shape of the tibia 3D model modeled on the basis of the tibia 3D data acquired through the CT or MRI scanning method, (110);
A body support 120 having an extension 125 extending in one direction from the body 110 and a first contact 121 formed at an end of the extension 125 and in contact with the tibial upper surface.
A pin guide part 130 extending in one direction from the main body part 110 and having a through hole 131 into which a pin can be inserted; And
An alignment rod 150 formed to extend from the body portion in a direction parallel to the mechanical axis M of the tibia;
Lt; / RTI >
The first contact portion 121 formed at the end of the extension portion 125 of the main body support portion 120 protrudes from the extension portion by a predetermined length,
Wherein the protruding direction of the first contact portion protruding from the extended portion is a direction orthogonal to the forming direction of the through hole of the pin guide portion.
The method according to claim 1,
Wherein the curved surface of the body part (110) is configured to simultaneously cover a side surface and an upper surface of an upper portion of the tibia 3D model.
delete The method according to claim 1,
The body support portion 120 has another second contact portion 122 connected to the first contact portion 121 by the first bridge structure 141,
The first bridge structure 141 includes a horizontal connection portion 1411 spaced from the top surface of the tibia 3D model by a predetermined distance and a vertical connection portion 1421 connecting the second contact portions 122 from both ends of the horizontal connection portion 1411 1412). ≪ RTI ID = 0.0 > 14. < / RTI >
5. The method of claim 4,
The body support 120 includes a third contact 123 connected by a second bridge structure 142 to the vertical connection 1412 or extension 125,
The second bridge structure 142 includes a horizontal connection portion 1421 spaced from the top surface of the tibia 3D model by a predetermined distance and a vertical connection portion 1421 connecting the third contact portions 123 from both ends of the horizontal connection portion 1421 1422). ≪ RTI ID = 0.0 > 14. < / RTI >
6. The method of claim 5,
The vertical connection portion 1411 of the first bridge structure 141 and the vertical connection portion 1422 of the second bridge structure 142 are formed so as to be perpendicular to the forming direction of the through hole 131 of the pin guide portion 130 Wherein the at least one of the at least two of the at least two of the at least one of the at least two of the at least two of the at least one of the at least two of the at least one of
The method according to claim 1,
And a slit-shaped through-hole (170) formed in a direction orthogonal to a mechanical axis (M) of the tibia is formed in the main body part (110).
The method according to claim 1,
The two or more pin guide portions 130 are disposed adjacent to each other,
Wherein a reinforcing member (160) for connecting the outer surfaces of the respective pin guide portions (130) integrally with each other is formed between the at least two pin guide portions (130).
A method (S100) for manufacturing an artificial knee joint patient-customized surgical guide according to any one of claims 1, 2, and 4 to 8,
a) a tibia 3D modeling step (S110) of acquiring tibia 3D data through a CT or MRI scanning method to form a tibia 3D model image;
b) a pin and alignment load position setting step (S120) for setting the position of the pin and the alignment rod to be inserted into the tibia 3D model image;
c) creating an artificial knee joint personalized surgical guide creation step (S130) that creates a pin guide, a body, a body support, and an alignment rod shape at a location corresponding to a pin location to create a shape of an artificial knee joint patient- ; And
d) preparing an artificial knee joint personalized surgical guide manufacturing step (S140) for manufacturing an artificial knee joint personalized surgical guide using shape data of the generated artificial knee joint patient customized surgical guide;
Wherein the method comprises the steps of:
10. The method of claim 9,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
Setting a position where the main body 110 and the contact portions 121, 122 and 123 are to be formed on the tibia 3D model image and setting an outer shape of the main body 110 and the contact portions 121, 122 and 123;
Wherein the method comprises the steps of:
11. The method of claim 10,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
Extracting surface data of a tibia 3D model image corresponding to an outer shape of the body part (110) and the contact parts (121, 122, 123);
Wherein the method comprises the steps of:
12. The method of claim 11,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
122 and 123 having the thickness based on the surface data of the tibia 3D model image corresponding to the outer shape of the body 110 and the contact portions 121, ;
Wherein the method comprises the steps of:
13. The method of claim 12,
Wherein the thickness of the body part (110) and the contact parts (121, 122, 123) is 3 to 7 mm.
10. The method of claim 9,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
Creating a bridge structure (141, 142) shape;
Wherein the method comprises the steps of:
10. The method of claim 9,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
Creating a slit-shaped through-hole (170) shape;
Wherein the method comprises the steps of:
10. The method of claim 9,
The step c) of generating the artificial knee joint personalized surgical guide (S130) comprises:
Creating a shape of a reinforcing member (160) connecting the outer surfaces of the pin guide portions (130) integrally with each other;
Wherein the method comprises the steps of:
10. The method of claim 9,
Wherein the manufacturing step of the artificial knee joint personalized surgical guide (S140) is fabricated using a rapid prototyping device based on data using CAD / CAM technology.
A recording medium storing a program for causing a computer to execute a method (S100) of making a surgical guide for a patient with an artificial knee joint according to claim 9.
A computer and a monitor for performing a program for causing a computer to execute a method (S100) of manufacturing a surgical guide for a patient with an artificial knee joint according to claim 9; And
A 3D printer which is controlled by shape data calculated according to a method of manufacturing an artificial knee joint personalized surgical guide in an arithmetic processing unit of the computer to produce a guide for tailoring an artificial knee joint patient;
Wherein the guide means comprises a guide member for guiding the knee joint.

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