KR101561232B1 - Patient specific surgical instrument with indicator - Google Patents

Abstract

[0001] The present invention relates to a patient-customized surgical instrument used for forming an implant on a bone of a femur or a tibia to enable implantation of the implant, and more particularly to a body- A cutting member insertion window formed at one side of the body portion to receive a cutting member inserted to form a cut surface of the bone, and a cutting member insertion window formed at one side of the body portion so that an index of a bone used when forming the treatment portion can be visually confirmed The present invention relates to a patient-customized surgical instrument equipped with a handler that can accurately and easily form a treatment part on a damaged bone,

Description

[0001] The present invention relates to a patient-

[0001] The present invention relates to a patient-customized surgical instrument used for forming an implant on a bone of a femur or a tibia to enable implantation of the implant, and more particularly to a body- A cutting member insertion window formed at one side of the body portion to receive a cutting member inserted to form a cut surface of the bone, and a cutting member insertion window formed at one side of the body portion so that an index of a bone used when forming the treatment portion can be visually confirmed The present invention relates to a patient-customized surgical instrument equipped with a handler that can accurately and easily form a treatment part on a damaged bone,

When knee joints lose their function due to arthritis or trauma, implants that can replace the fractured joints are implanted to perform artificial joint replacement to perform normal knee joint function.

FIGS. 1 to 3 are diagrams for explaining the artificial joint replacement for the knee joint. Hereinafter, referring to FIGS. 1 to 3 and the following patent documents, a method of performing conventional artificial joint replacement will be described.

<Patent Literature>

Patent No. 10-1190973 (registered on October 10, 2012) "Device and method for displaying knee joint cutting surface"

FIG. 1 shows a knee joint in which a femoral component 300 is coupled to a femur 100 and a tibial component 400 is coupled to a tibia 200 and a femoral component 300 and a tibial component 400, the bail ring 500 is positioned. 3, in order to implant the femoral component 300 and the tibia component 400 shown in FIGS. 1 and 2 in the femur 100 and the tibia 200, the femur 100 and the tibia 200 ), A stylized cutting block or the like described in the patent document is used to form the cut surfaces 120a and 220 of the treatment portion. The cutting block is placed on the femur 100 or the tibia 200 and the cutting tool is inserted into the slit to form the cut surfaces 120a and 220. [

However, since each patient has a certain degree of bone structure and shape, there is a problem that it is impossible to set the position of the precise cut surfaces 120a and 220 when using the cut block of a regular shape. Accordingly, the image of the femur 100 or the tibia 200 is acquired for each patient, and the obtained image is converted into a 3D image to form a 3D image of a cutting block matching the 3D image of the femur 100 or the tibia 200 And the patient-customized cutting block according to the 3D image of the cutting block is produced and used. However, even in the patient-customized cutting block, there is no configuration for assisting determination of cutting level and rotation angle, and it is difficult to form an accurate cut surface, so that an error of operation becomes large, There is an increasing problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

The present invention relates to a surgical instrument having a patient-customized surgical instrument constructed on the basis of 3D data of a bone, comprising a guide formed on one side of a body part to be bonded to a damaged bone, And it is an object of the present invention to provide a patient-customized surgical instrument equipped with a guide that can accurately position a bone to be treated, thereby enabling a patient to be accurately and easily formed.

It is another object of the present invention to provide a patient-customized surgical instrument equipped with a guide for guiding the position of a cutting member, which is formed on the basis of 3D data of bones, so that a cut surface can be accurately formed.

In addition, the present invention relates to a patient-customized surgical instrument equipped with a guide capable of positioning the body portion on the femur to match the white side line and the superficial trunk of the femur through a white side line guide and a superhard trunk guide formed based on 3D data of bone The purpose is to provide.

In addition, since the side guide formed on the basis of the 3D data of the bone guides the position of the cutting member, it is not necessary to separately set the formation position of the rear side, And to provide a customized surgical instrument.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to one embodiment of the present invention, a patient-customized surgical instrument equipped with a pointer according to the present invention includes a body portion that is coupled to a bone and surrounds a part of the bone, and a body portion formed through one side of the body portion, A cutting member insertion window for receiving a cutting member to be inserted into the body, and a guide member formed at one side of the body to allow the naked eye to check an index of a bone used in forming the treatment unit.

According to another embodiment of the present invention, in the patient-customized surgical instrument equipped with the handler according to the present invention, the handler may be provided at one side of the body so as to be able to confirm the position of a cut surface to be formed on the bone And a cut surface guide.

According to another embodiment of the present invention, in the patient-customized surgical instrument equipped with the handler according to the present invention, the handler is formed at one side of the body portion, and the hand side of the femur corresponds to the white side line of the femur, The white side line guide includes a white side line guide of the femur based on the 3D data of the individual femur of the patient, Reflection layer.

According to another embodiment of the present invention, in a patient-customized surgical instrument equipped with the handler according to the present invention, the handler is formed at one side of the body portion, and is configured to match the superficial trunk of the femur And a supragonal trunk guide for guiding the body part to be able to check whether the body part is correctly positioned on the femur.

According to another embodiment of the present invention, in a patient-customized surgical instrument equipped with a pointer according to the present invention, the pointer is formed on the lower end of the body so as to be formed on the femur, The femoral artery guide is formed to reflect the femoral artery of the femur based on the 3D data of the individual femur of the patient.

According to another embodiment of the present invention, in the patient-customized surgical instrument equipped with the handler according to the present invention, when the white side line guide is positioned parallel to the white side line of the femur, And the femur is positioned in the femur in conformity with the line.

According to another embodiment of the present invention, in the patient-customized surgical instrument equipped with the pointer according to the present invention, when the supraglottary trunk guide is positioned parallel to the superficial trunk of the femur, And the femur is determined to be correctly positioned on the femur.

According to another embodiment of the present invention, a patient-customized surgical instrument equipped with a pointer according to the present invention is inserted through the lower portion of the body portion, and a chamfering member used for forming a chamfered surface of the femur is coupled to the femur And a hole for inserting the hole forming member for forming the hole for forming the hole.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention relates to a surgical instrument having a patient-customized surgical instrument constructed on the basis of 3D data of a bone, comprising a guide formed on one side of a body part to be bonded to a damaged bone, So that it is possible to accurately and easily form the treatment section.

In addition, the present invention has an effect of accurately forming a cut surface because the cut surface guide formed based on the 3D data of the bone guides the position of the cutting member.

In addition, the present invention has the effect that the body part can be positioned on the femur so as to match the white side line and the superficial trunk of the femur through the white side line guide and the superficial artery guide formed based on the 3D data of the bone.

In addition, since the rear guide formed on the basis of the 3D data of the bone guides the position of the cutting member, it is not necessary to separately set the formation position of the rear side, thereby facilitating the formation of the operation part.

Figs. 1 to 3 are reference views for explaining artificial joint replacement for a knee joint.
Fig. 4 is a reference view showing an anatomical index of the femur in a bottom view of the femur.
5 is a perspective view of a knee joint coupled with a patient-customized surgical instrument according to the present invention.
FIG. 6 is a front view of the patient-customized surgical instrument for the femur of FIG. 5; FIG.
FIG. 7 is a perspective view of the patient-customized surgical instrument for femur of FIG. 5 as viewed from the back; FIG.
FIG. 8 is a perspective view of the patient-customized surgical instrument for tibia of FIG. 5 viewed from the front; FIG.
FIG. 9 is a perspective view of the patient-customized surgical instrument for tibia of FIG. 5 as viewed from the back; FIG.

Hereinafter, a patient-customized surgical instrument equipped with a pointer according to the present invention will be described in detail with reference to the accompanying drawings. Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and, if conflict with the meaning of the terms used herein, It follows the definition used in the specification. Further, the detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

FIGS. 1 to 3 are reference views for explaining artificial joint replacement for a knee joint, FIG. 4 is a reference view showing an anatomical index of the femur in a bottom view of the femur, FIG. 5 is a cross- FIG. 6 is a perspective view of the patient-customized surgical instrument for the femur of FIG. 5 viewed from the front, FIG. 7 is a perspective view of the patient-customized surgical instrument for the femur of FIG. 5 is a perspective view of the patient-customized surgical instrument for tibia of FIG. 5, and FIG. 9 is a perspective view of the patient-customized surgical instrument for tibia as viewed from the back.

The patient-customized surgical instrument equipped with the handler according to an embodiment of the present invention is used in forming a treatment part on the bone so that implants can be implanted into the bones of the femur or tibia. Hereinafter, A customized surgical instrument will be described. The patient-customized surgical instrument includes a patient-customized surgical instrument 1 for femur used for forming a treatment part for implanting the implant (femoral component 300) by being coupled to the distal end 110 of the femur 100, And a patient-customized surgical instrument 2 for use with a tibial bone used in forming a treatment portion for implanting an implant (tibia element 400) by being coupled to a proximal end 210 of the tibia 200. FIG. 3 shows the shape of the femur 100 and the tibia 200, in which the procedure is formed. The patient-customized surgical instrument refers to a surgical instrument manufactured in accordance with an individual patient. The patient-specific surgical instrument performs CT scanning on the damaged bone (femur, tibia, etc.) (E.g., a 3D design program is used) using the CT data, a factor (e.g., a white side line, a superficial trunk, a machine, etc.) used in forming a treatment part in the 3D image of the bone Axis and the like), and designing a 3D image of the surgical instrument attached to the bone using the 3D image of the bone and the extracted factor (hereinafter, referred to as "3D data of the bone") And a 3D image of the surgical instrument is printed with a 3D printer. The patient-customized surgical instrument is manufactured individually for the patient, so that the inner surface of the patient-specific surgical instrument that contacts the damaged bone has contact surfaces (111a, 112a, 112b) having a negative shape of the bone, 211a and 212a and the cutting face insertion guides 12 and 22, the positioning holes 14 and the cut surface guides 151 and 241 ), The white side line guide 152, the superficial artery guide 153, and the rear side guide 154 are formed on the basis of the 3D data of the bone and have the shape and the formation position optimized for the patient. In other words, when the patient-customized surgical instrument is positioned on the bone, the white side line guide 152 and the superficial artery line guide 153 are parallel to the white line and the hyperterminal line of the femur 100, The desired chamfer surface 120b, the cut surfaces 110a and 220 and the rear surface 110c can be accurately formed through the cut surface guides 151 and 241 and the rear surface guide 154, I will explain. In addition, the patient-customized surgical instrument is made of various materials, but is preferably made of synthetic resin such as polyethylene.

The patient-customized surgical instrument for femur 1 is configured to be used when forming a treatment part for implanting the femoral component 300 by being coupled to the distal end 110 of the femur 100, and includes a body part 11, An insertion window 12, a fixing hole 13, a positioning hole 14, a guide 15, and the like.

The body portion 11 includes a front portion 111 and a lower portion 112 and is configured to surround a part of the femur 100 by being coupled to a distal end portion 110 of the femur 100.

The front portion 111 is located on the front side of the distal end portion 110 of the femur 100 and surrounds a part of the femur 100 and includes a contact surface 111a and the like. The front portion 111 may have a cutting member insertion window 12, a fixing hole 13, a cut surface guide 151, and the like.

The contact surface 111a is formed on the inner surface of the front part 111 and has a negative configuration of the femur 100 surrounding or contacting the front side of the distal end 110 of the femur 100. [ And is formed based on 3D data of the individual femur 100 of the patient.

The lower portion 112 is bent at a lower end of the front portion 111 and is positioned below the distal end portion 110 of the femur 100 to surround a part of the femur 100. The contact portion 112a, And the like. The lower side portion 112 may be provided with a position forming hole 14, a white side line guide 152, a superhard trunk guide 152, a rear side guide 154, and the like.

The contact surface 112a is formed on the inner surface of the lower portion 112 and has a negative configuration of the femur 100 surrounding or contacting the distal end 110 of the femur 100 And is formed based on 3D data of the individual femur 100 of the patient.

The cutting member insertion window 12 is configured to penetrate the front portion 111 and accommodate a cutting member (not shown) inserted to form the cut surface 120a. Data, and has a predetermined shape, but preferably a rectangular shape. The cutting member may be, for example, a medical saw.

The fixing hole 13 is formed through the front portion 111 at a predetermined distance from the cutting member insertion window 12 and is fixed to a fixing member for coupling the femur 100 and the body portion 11 The distal end of the fixing member inserted into the fixing hole 13 penetrates the femur 100 and the femur 100 and the body 11 are firmly fixed. The fixing member may be, for example, a medical pin, a screw, or the like.

The positioning hole 14 is formed through the lower portion 112 and is formed with a chamfer forming member (not shown) used for forming the chamfered surface 120b of the femur 100 to be coupled to the femur 100 (Not shown) for forming a hole to be inserted into the femur 100 is inserted, and is formed based on the 3D data of the individual femur 100 of the patient. The distal end of the hole forming member inserted into the positioning hole 14 pierces the femur 100 to form the hole and the hole forming member and the patient-customized surgical instrument 1 are removed from the femur 100 It is possible to insert the chamfer forming member into the femur 100 by inserting the fixing portion of the chamfer forming member into the hole formed in the femur 100 and to accurately position the chamfering face 120b on the femur 100, . For example, a medical pin, a screw, or the like may be used as the hole-forming member, and a conventional mechanism may be used in which the chamfering member is coupled to the femur 100 to form a chamfered surface 120b.

The guide 15 is formed on one side of the body 11 so that the index of the femur 100 used for forming the treatment part can be visually confirmed. The guide 15 has a cut surface guide 151, A guide 152, a warp trunk guide 153, a rear side guide 154, and the like. The guide 15 is formed on the basis of 3D data of the individual femur 100 of the patient. Before describing the guide 15, an anatomical index of the femur 100, which can be confirmed through the guide 15, will be briefly described with reference to FIG. 4. A whiteside line 130, A transepicondylar line (140) refers to the line connecting the epicondyle of the femur and the deepest line of the femur trochlea (intercondylar notch). do. The anatomical indices are anatomical indices commonly used in the field of orthopedic surgery, and a detailed description thereof will be omitted.

The cutting surface guide 151 is provided on the side surface of the front portion 111 in a forward and backward direction to provide a guide so that the position of the cutting surface 120a to be formed on the femur 100 can be confirmed. And is formed based on the 3D data of the femur 100. The body portion 11 is fixed to the distal end portion 110 of the femur 100 by using the fixing member and the cutting member 151 is inserted into the cutting member insertion window 12, The cutting surface 120a of the femur 100 is accurately formed. Since the body portion 11 is generally made of synthetic resin such as polyethylene, the body portion 11 can be easily broken by the cutting member, so that when the cut surface 120a is formed by using the cutting member, The cutting member insertion window 12 is formed to be much larger than the cutting member so that the cut surface guide 151 guides the position of the cutting member so that the body portion 11 The cut surface 120a can be accurately formed without being broken.

The white line guide 152 is formed at a lower center portion of the lower portion 112 at a position complementary to the white side line 130 based on the 3D data of the femur 100, The guide is provided so as to be able to check whether the body part 11 is positioned in the femur 100 in conformity with the white side line 130 of the femur 100 in comparison with the side line 130, The white side line guide 152 is formed to reflect the white side line 130 of the femur 100 that is grasped based on the 3D data of the individual femur 100 of the patient. When the white side line guide 152 is positioned parallel to the white side line 130 of the femur 100, the body part 11 is aligned with the white side line 130 of the femur 100 It can be determined that the femur 100 is positioned. When the white side line 130 of the femur 100 and the white side line guide 152 are not parallel to each other, the joining position of the body part 11 with respect to the femur 100 is adjusted, The body portion 11 can be positioned in the femur 100 with the line 130 and the white side line guide 152 positioned in parallel.

The upper limb guide 153 is formed on the lower surface of the lower portion 112 at a position complementary to the upper trunk 140 based on the 3D data of the femur 100, The upper body guide 11 is provided in the femoral head 100 so that it can be seen whether the body part 11 is positioned in the femur 100 in conformity with the upper trunk 140 of the femur 100, Is formed by reflecting the superficial artery 140 of the femur 100 that is grasped based on the 3D data of the individual femur 100 of the patient. The body section 11 is formed in a shape corresponding to the femoral head 140 in conformity with the super trunk 140 of the femur 100 when the supraglottary trunk guide 153 is positioned in parallel with the superposed trunk 140 of the femur 100. [ 100). &Lt; / RTI &gt; When the upper trunk line 140 of the femur 100 and the upper trunk line guide 153 are not parallel to each other, the coupling position of the body part 11 with respect to the femur 100 is adjusted, And the upper guide 153 are positioned in parallel with each other so that the body 11 can be positioned in the femur 100. [ The patient-customized surgical instrument is configured such that the body part 11 is fitted to the white side line 130 and the superficial artery 140 of the femur 100 through the white side line guide 152 and the superficial artery guide 153, So that the femur 100 can be positioned correctly.

The rear side guide 154 is configured to be perpendicular to the distal end of the lower portion 112 and to provide a guide so that the position of the posterior side 120c to be formed on the femur 100 can be confirmed. Based on the 3D data of the femur 100 of FIG. When the femur 100 is cut along the rear side guide 154 by positioning the body portion 11 in the distal end portion 110 of the femur 100 using the fixing member, The back side surface 120c of the body 100 is accurately formed. Conventionally, in order to form the rear side 120c, a cut surface 120a is formed through a patient-customized surgical instrument, the position of the side surface 120c to be formed after removing the patient-customized surgical instrument is set, Since the rear side guide 154 guides the position of the cutting member, the patient-customized surgical instrument does not need to separately set the formation position of the back side 120c, have.

The patient-customized surgical instrument 2 for use in the tibia is configured to be used in forming a treatment portion for implanting the tibia element 400 by being coupled to the proximal end portion 210 of the tibia 200 and includes a body portion 21, An insertion window 22, a fixing hole 23, a guide 24, and the like.

The body 21 is configured to be coupled to the proximal end 210 of the tibia 200 to surround a portion of the tibia 200 and includes a front portion 211 and an upper portion 212.

The front portion 211 is located on the front side of the proximal end portion 210 of the tibia 200 and surrounds a portion of the tibia 200 and includes a contact surface 211a and the like. The front portion 211 may include a cutting member insertion window 22, a fixing hole 23, a cut surface guide 241, and the like.

The contact surface 211a is formed on the inner surface of the front portion 211 and has a negative configuration of the tibia 200 surrounding or contacting the front side of the proximal end 210 of the tibia 200. [ And is formed based on the 3D data of the individual tibia 200 of the patient.

The upper portion 212 is bent upward at the upper end of the front portion 211 and is positioned above the proximal end portion 210 of the tibia 200 to surround a portion of the tibia 200. The upper portion 212 has a contact surface 212a, And the like.

The contact surface 212a is formed on the inner surface of the upper portion 212 and has a negative configuration of the tibia 200 surrounding or in contact with the upper side of the proximal end 210 of the tibia 200. [ And is formed based on the 3D data of the individual tibia 200 of the patient.

The cutting member insertion window 22 is configured to receive a cutting member (not shown) formed through the front portion 211 and inserted to form a cut surface 220, Data, and has a predetermined shape, but preferably a rectangular shape. The cutting member may be, for example, a medical saw.

The fixing hole 23 is formed in the front part 111 at a predetermined distance from the cutting member insertion window 22 and is fixed to the fixing part for coupling the tibia 200 and the body part 21 The distal end of the fixing member inserted into the fixing hole 23 digs the tibia 200 and the tibia 200 and the body 21 are firmly fixed. The fixing hole 23 includes a first fixing hole 23a penetrating the front surface in the front-rear direction and a second fixing hole 23b formed obliquely through the side surface.

The guide 24 is formed on one side surface of the body 21 so that the index of the tibia 200 used when forming the treatment part can be visually confirmed and includes a cut surface guide 241 and the like . The guide 24 is formed based on the 3D data of the tibia 200 of the individual patient.

The cut surface guide 241 is formed on the side surface of the front portion 211 in the anteroposterior direction so that the position of the cut surface 220 to be formed on the tibia 200 can be confirmed. Based on the 3D data. The body part 21 is fixed to the proximal end 210 of the tibia 200 using the fixing member and the cutting member is inserted into the cutting member insertion window 22, The cut surface 220 of the tibia 200 is accurately formed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

1: Customized surgical instrument for femur 2: Customized surgical instrument for tibia
11: body part 12: cutting member insertion window 13: fixing hole
14: Positioning hole 15: Guide element 111: Front side
112: lower side 151: cut surface guide 152: white side guide
153: overhead trunk guide 154: rear side guide
21: body portion 22: cutting member insertion window 23: fixing hole
24: a guide 23a: a first fixing hole 23b: a second fixing hole
211: front side portion 212: upper side portion 241:

Claims (9)

A patient-customized surgical instrument for use in forming a treatment portion on a bone of a femur or a tibia to enable implantation of the implant,
A cutting member insertion window for receiving a cutting member formed to penetrate through one side of the body and inserted to form a cut surface of the bone; And a guide member formed on one side of the guide member and allowing the user to visually confirm the index of the bone used in forming the treatment unit,
Side guide line which is formed at one side of the body part and provides a guide so as to check whether the body part is correctly positioned on the femur in accordance with the white side line of the femur in contrast to the white side line of the femur ,
Wherein the white side line guide is formed reflecting the white side line of the femur based on the 3D data of the individual femur of the patient. A patient-customized surgical instrument for use in forming a treatment portion on a bone of a femur or a tibia to enable implantation of the implant,
A cutting member insertion window for receiving a cutting member formed to penetrate through one side of the body and inserted to form a cut surface of the bone; And a guide member formed on one side of the guide member and allowing the user to visually confirm the index of the bone used in forming the treatment unit,
Wherein the guide is formed at one side of the body and includes a supragonal trunk guide for providing a guide so that the body can be positively positioned on the femur in conformity with the superficial trunk of the femur compared to the superficial trunk of the femur,
Wherein the stratified trunk guide is formed to reflect the superficial femur of the femur based on the 3D data of the individual femur of the patient. A patient-customized surgical instrument for use in forming a treatment portion on a bone of a femur or a tibia to enable implantation of the implant,
A cutting member insertion window for receiving a cutting member formed to penetrate through one side of the body and inserted to form a cut surface of the bone; And a guide member formed on one side of the guide member and allowing the user to visually confirm the index of the bone used in forming the treatment unit,
Wherein the guide includes a rear side guide formed on a lower end of the body to provide a guide for confirming a position of a rear side of the femur when the guide is formed on the femur. The method according to claim 1,
Wherein when the white side line guide is positioned parallel to the white side line of the femur, the body portion is determined to be positioned in the femur in conformity with the white side line of the femur. device. 3. The method of claim 2,
Wherein the body section is positioned at the femur in conformity with the superficial trunk of the femur when the hypodermic trunk guide is positioned parallel to the superficial trunk of the femur. The method according to claim 2 or 3,
Side guide member is provided at one side of the body portion and is provided with a guide for providing a guide so as to be able to check whether the body portion is positioned in the femur relative to the white side line of the femur in contrast to the white side line of the femur &Lt; / RTI &
Wherein the white side line guide is formed reflecting the white side line of the femur based on the 3D data of the individual femur of the patient. The method according to claim 1,
The guide member being formed at one side of the body portion and providing a guide so as to check whether the body portion is positioned on the femur in conformity with a superficial trunk of the femur compared to a superficial trunk of the femur; And a rear side guide which is formed at the lower end and is formed on the femur so that the position of the rear side can be confirmed,
Wherein the stratified trunk guide is formed to reflect the superficial femur of the femur based on the 3D data of the individual femur of the patient. 3. The method of claim 2,
Wherein the guide member further comprises a rear side guide provided on a lower end of the body to provide a guide for confirming a position of a rear side of the femur when the guide is formed on the femur. The method according to any one of claims 1 to 5 and 7 to 8,
The patient-customized surgical instrument equipped with the handler is inserted through a lower portion of the body portion, and a hole forming member for forming a hole for coupling a chamfering member used for forming a chamfered surface of the femur to the femur is inserted And further comprising a forming hole. &Lt; Desc / Clms Page number 24 &gt;

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