WO2022177191A2

WO2022177191A2 - Orthopedic readjustment system

Info

Publication number: WO2022177191A2
Application number: PCT/KR2022/001264
Authority: WO
Inventors: 이의석
Original assignee: 고려대학교 산학협력단
Priority date: 2021-02-17
Filing date: 2022-01-25
Publication date: 2022-08-25
Also published as: KR102535948B1; KR20220117749A; WO2022177191A3

Abstract

Disclosed in the present specification is a system capable of readjusting gaps between bones after orthopedic surgery. An orthopedic readjustment system according to the present specification is a system for readjustment after orthopedic surgery, wherein the system may comprise: an orthopedic device including a locking screw, wherein the locking screw includes a screw body having a locking sawtooth pattern formed on an upper outer surface thereof, and a screw head having an inner-surface sawtooth pattern and an outer-surface sawtooth pattern formed on a portion of the inner surface and on the inner surface, respectively, the inner-surface sawtooth pattern meshing with the locking sawtooth pattern; an adjustment device having a body portion and a drive unit, the body portion having a shape corresponding to a groove formed on the upper surface of the screw head and the screw body, and the drive unit rotating the body portion in a predetermined direction; and a control device outputting a control signal regarding a rotation direction and the number of turns to the drive unit of the adjustment device.

Description

Readjustment system for osteophytes

The present invention relates to a technique of osteotomy, and more particularly, to a system capable of readjustment after osteotomy surgery.

The content described in this section merely provides background information for the embodiments described herein and does not necessarily constitute prior art.

In general, the mandible fixation plate is used after removing or cutting a part of the jawbone or removing the part after removing or cutting a part of the jawbone when performing chin-face plastic surgery or oral cancer surgery to correct the chin. It is an auxiliary medical device used to maintain a bone or to implant and fix new bone.

Hereinafter, a conventional method of applying the mandible fixing plate to the mandible of the face will be described with reference to FIGS. 1 and 2 .

1 is a perspective view illustrating a conventional fixing plate for mandibular surgery, and FIG. 2 is a perspective view illustrating a state in which the fixing plate for mandibular surgery of FIG. 1 is attached to the mandible. 3 is a perspective view illustrating a state in which deformation occurs in the fixing plate.

1 and 2, a fixing plate for mandibular surgery is mounted on the front surface of the mandible in a state in which a part of the mandible is removed or incised. made of a material with The plate body (1) is formed with a plurality of fixing parts (2) in the shape of a ring in which the through parts (3) are formed at equal intervals. The screw 4 is inserted into the mandible through each of the penetrations 3 , through which the plate body 1 is fastened to the mandible. Each fixing part 2 is interconnected by a connection part 5, and a tapered surface 6 for seating the head of the screw 4 to be fastened is formed on the inner circumferential surface of the fixing part 2 .

The operator inserts the screws 4 into the through-holes 3 formed in the fixing part 2, respectively, and then fastens them to the mandible to complete the joint operation of the incised mandible.

On the other hand, in general, when the mandible is joined, the patient is under anesthesia, so there is no sense, consciousness, or muscle activity. plate is fixed.

However, in the conventional mandibular fixation plate as described above, the position of the fixation plate is slightly fluctuated in the up, down, left, and right directions due to different mandibular growth rates and growth directions after treatment for each patient, tooth structure and chewing habits, etc. As a result, it is necessary to finely adjust the position of the fixing plate, but in the case of adjusting the position of the conventional fixing plate, the screw ( After releasing the fastening state of 4), there was a problem in that it was very difficult to actually adjust the position of the fixing plate because the screw 4 had to be fixed to a new position again.

In addition, since the conventional mandible fixing plate cannot be fine-tuned in a fixed state, the incised mandible cannot be completely sutured. It caused a lot of pain and discomfort to the patient, and there were many problems such as the need to re-operate the fixing plate.

That is, when using the mandibular complete fixation plate that does not allow post-operative movement of the conventional mandibular bone fragments as described above, if the mandible is incorrectly positioned and fixed during surgery, the temporomandibular joint abnormality, deformation and fracture of the plate may be caused. There was a problem that required reoperation for new fixation of the mandible due to the position of the mandible and abnormal symptoms of osseointegration.

[Prior art literature]

[Patent Literature]

Republic of Korea Patent Publication No. 10-1210089

An object of the present specification is to provide a system capable of re-adjusting the gap between the bone and the bone after orthopedic surgery.

The present specification is not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The readjustment system for bone shape according to the present specification for solving the above-mentioned problems is a system for readjustment after orthopedic surgery, wherein the system includes a screw body having locking teeth formed on the upper outer circumferential surface, and a partial region of the inner circumferential surface and the inner circumferential surface, respectively. Bone type device having a locking screw comprising a screw head having teeth and outer peripheral serrations formed thereon and the inner peripheral serrations are coupled to engage the locking serrations; an adjustment device having a body portion having a shape corresponding to a groove formed in the upper surfaces of the screw body and the screw head, and a driving portion for rotating the body portion in a predetermined direction; and a control device for outputting control signals for the rotation direction and the number of rotations to the driving unit of the adjustment device.

According to an embodiment of the present specification, the body portion, the first body having a tip corresponding to the groove formed in the upper surface of the screw body; or a second body having a tip corresponding to a groove formed on an upper surface of the screw head.

According to an embodiment of the present specification, the second body may have a cylindrical shape with a space formed therein in the longitudinal direction, and the first body may be disposed in the inner space of the second body.

According to an embodiment of the present specification, the driving unit may include: a first driving motor configured to rotate the first body; and a second driving motor configured to rotate the second body.

According to an embodiment of the present specification, a vertical driving unit for moving the second body by a predetermined length in the longitudinal direction; may further include.

According to an embodiment of the present specification, the control device includes a first mode of controlling the vertical driving unit so that the tip of the first body is more exposed in the longitudinal direction than the tip of the second body, In the second mode of controlling the vertical driving unit, the tip is moved by a predetermined length in the tip direction of the first body by a predetermined length from the position in the first mode.

According to an embodiment of the present specification, the control device may control only the second driving motor to rotate in the second mode.

According to an embodiment of the present specification, the control device includes: a wireless communication unit for receiving a control signal from the control device; a power supply unit for supplying power to the driving unit; and a driving control unit configured to control supply of power to the driving unit according to the control signal.

According to an embodiment of the present specification, the adjusting device further includes a switch for receiving a user driving control input signal, and the driving control unit, when the driving control input signal is received through the switch in the second mode, Power may be supplied to the second driving motor.

According to an embodiment of the present specification, the adjusting device further includes a voltage sensor for detecting a voltage difference between the first body and the second body, and the driving control unit is configured to perform a function in the voltage sensor in the second mode. When the output voltage value is equal to or less than a preset reference voltage, power may be supplied to the second driving motor.

Other specific details of the invention are included in the detailed description and drawings.

According to one aspect of the present specification, it is possible to readjust the gap between the bone and the bone after osseous orthopedic surgery. Through simple procedure-level measures, patients can obtain higher satisfaction without reoperation.

According to another aspect of the present specification, precise fine adjustment is possible regardless of the skill level of the operator. Therefore, the success rate of surgery and procedures is improved and deviation is reduced.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a perspective view showing a conventional fixing plate for mandibular surgery.

2 is a perspective view illustrating a state in which the fixing plate for mandibular surgery of FIG. 1 is attached to the mandible.

Figure 3 is a schematic configuration diagram of the re-adjustment system for osteotomy according to the present specification.

Figure 4 is a perspective view showing a state in which the locking screw is mounted on the plate in the adjustable gap bone device according to the present invention.

Figure 5 is an exploded view of the adjustable interval osseous device of Figure 4;

6 is a perspective view illustrating a locking state in which the screw body is engaged with the screw head in the locking screw of FIG. 4 .

FIG. 7 is a perspective view illustrating the unlocking state in which the screw body engaged with the screw head in FIG. 6 is released.

Figure 8 is a plan view showing the operation process of the adjustable gap bone device according to the present invention.

9 is a perspective view showing an embodiment in which an elastic member for assisting the lifting force of the screw head is additionally mounted to the bone device for adjustable spacing of FIG. 4 .

Figure 10 is a perspective view showing an embodiment in which the ratchet method is applied to the adjustable gap bone device of Figure 4;

Figure 11 is a plan view showing an embodiment in which the adjustable gap bone device of Figure 4 includes two locking screws.

Figure 12 is a plan view showing an embodiment in which a separate screw fixing hole is formed in the bone device for adjustable spacing of Figure 4;

13 is a reference diagram for the configuration of the adjustment device according to the present specification.

14 is a reference diagram for the corresponding configuration of the first body and the second body.

15 is a reference diagram for the internal configuration of the adjustment device according to the present specification.

16 is a reference diagram for the first mode and the second mode according to the present specification.

17 is a reference diagram for determining whether a contact is made through a voltage sensor.

Advantages and features of the invention disclosed herein, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present specification to be complete, and those of ordinary skill in the art to which this specification belongs. It is provided to fully inform those skilled in the art (hereinafter 'those skilled in the art') the scope of the present specification, and the scope of the present specification is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the scope of the present specification. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components.

Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this specification belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between a component and other components. A spatially relative term should be understood as a term that includes different directions of components during use or operation in addition to the directions shown in the drawings. For example, when a component shown in the drawing is turned over, a component described as “beneath” or “beneath” of another component may be placed “above” of the other component. can Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

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

Referring to FIG. 3 , the osseous type readjustment system 1000 according to the present specification may include a osseous type device 10 , an adjustment device 20 and a control device 30 .

The bone orthopedic device 10 has a screw body 210 and a screw head 220 .

The screw body 210 is formed with locking teeth on the upper outer peripheral surface.

The screw head 220 has an inner peripheral surface tooth 223 is formed in a portion of the inner peripheral surface. The screw head 220 has an outer peripheral surface tooth 222 is formed on the outer surface. The screw head 220 is coupled to the inner peripheral surface teeth 223 and the locking teeth (212a) are engaged.

The adjusting device 20 may include a body part and a driving part.

The body portion may have a shape corresponding to the grooves formed on the upper surfaces of the screw body 210 and the screw head 220 .

The driving unit may rotate the body in a predetermined direction. The driving unit may be implemented through a DC motor, a step motor, or the like.

The control device 30 may output a control signal for the rotation direction and the number of rotations to the driving unit of the adjustment device 20 .

The control device 30 may correspond to a navigation system for so-called osteotomy surgery. The control device 30 may select a bone that needs to be moved by using image data related to the patient's bone shape, such as X-ray, CT, MRI, and PET-CT, and calculate the amount of movement. In particular, the control device 30 according to the present specification may calculate data on the readjustment target bone and readjustment movement amount for the patient in need of readjustment after surgery.

As an example, let's assume a patient who has undergone orthopedic surgery using the bone orthopedic device 10 according to the present specification. More specifically, after cutting both sides of the mandible, the bone is connected to the bone using the bone orthopedic device 10 . Two bone orthopedic devices are used on one side, and a total of four orthopedic devices are fixed to the patient's mandible. And after surgery, it is necessary to adjust the gap between the cut bones for left and right balance of the mandible.

The control device 30 may receive image data on the condition of the patient's mandible and calculate how much the distance between which cut bone parts should be moved. At this time, it is possible to designate one or two bone orthopedic devices corresponding to the selected bone region, and it is possible to calculate how many times the screw head should be rotated in which direction in relation to how much movement is required. The control device 30 may output information about the bone orthopedic device that requires adjustment, the rotation direction and the number of rotations of the screw head to the adjustment device 20 .

Hereinafter, the bone orthopedic device 10 will be described in more detail.

Figure 4 is a perspective view showing a state in which the locking screw is mounted to the plate in the adjustable gap bone device according to the present invention.

Figure 5 is an exploded view of the adjustable spacing of the bone orthopedic device of Figure 4.

Referring to Figures 4 and 5, the adjustable gap bone device according to the present invention includes a plate (100) and a locking screw (200).

The plate 100 includes a main body 110 , a penetrating portion 120 formed to pass through a central portion of the main body 110 to a predetermined length, and a sidewall 130 formed on one side of the main body 110 . The side wall 130 has a plurality of plate teeth 140 extending in the longitudinal direction of the side wall 130 toward the through portion 120 side.

The plate 100 is disposed over the first bone and the second bone, which are two adjacent bone pieces, and one side of the main body 110 of the plate 100 is supported on the upper surface of the first bone and the other side is the second bone. supported on the upper surface of Since the first bone and the second bone are spaced apart from each other, a predetermined region of the central portion of the main body 110 becomes a region that does not contact any of the first bone and the second bone.

The penetrating portion 120 has an elliptical shape extending in the longitudinal direction of the main body 110 . The through portion 120 is spaced apart from the sidewall 130 by a predetermined distance and is oriented parallel to the sidewall 130 . The penetrating portion 120 has one side disposed on the first bone, and the other side disposed on the second bone. The width of the through portion 120 is formed to be larger than the diameter of the body portion 211 of the screw body 210 , while being formed to be smaller than the diameter of the head portion 212 of the screw body 210 .

The sidewall 130 includes a first sidewall 131 formed with a plurality of plate teeth 140 , and a second sidewall 132 formed on the other side of the plate 100 opposite to the first sidewall 131 . The first sidewall 131 and the second sidewall 132 are formed to extend upward from one end and the other end of the plate, respectively. The distance between the second sidewall 132 and the longitudinal axis of the through portion 120 is formed to be larger than the distance between the first sidewall 131 and the longitudinal axis of the through portion 120 . The distance between the first side wall 131 and the longitudinal axis of the through portion 120 is formed to be approximately the radius of the screw head 220 of the locking screw 200 . The height of each of the first and

second sidewalls

131 and 132 may be the same as the height of the screw head 220 .

The plate teeth 140 are formed to extend along the longitudinal direction of the inner surface of the first sidewall 131 with a length greater than the length of the through portion 120 . The height at which the plate teeth 140 extend may be the same as the height at which the outer peripheral teeth 222 formed on the outer peripheral surface of the screw head 220 extend.

The locking screw 200 is inserted into the through part 120 . The locking screw 200 includes a screw body 210 and a screw head 220 that can be coupled to each other. The screw head 220 has a hollow larger than the diameter of the screw body 210 and the head portion 212, so that the screw body 210 can be inserted therein. In a state in which the screw head 220 is fixed on the main body 110 of the plate 100 from the upper side of the through portion 120 , the screw body 210 passes through the through portion 120 to allow the first or second It may be coupled to the hollow inside of the screw head 220 while being inserted into the bone.

The screw body 210 includes a body portion 211 having a screw thread 210a formed on the lower outer circumferential surface of the screw body 210, and a head portion 212 having a locking tooth 212a formed on the upper outer circumferential surface of the screw body 210. include As the body portion 211 of the screw body 210 penetrates the penetrating portion 120 and is inserted into the first or second bone, the screw thread 210a formed in the body portion 211 has a screw thread on the first or second bone. A screw groove corresponding to the (210a) is formed and is engaged with the screw thread (210a). An insertion groove 212b for inserting a driver or the like is formed on the upper surface of the head portion 212 of the screw body 210 . The user may insert the screw body 210 into the first or second bone by inserting a screwdriver or the like into the insertion groove 212b and rotating it.

The screw head 220 is supported on the upper surface of the main body 110 of the plate 100 on the upper side of the through part 120 . The screw head 220 is disposed between the first sidewall 131 and the second sidewall 132 , and may be formed at the same height as the first and second sidewalls 132 .

A locking jaw 221 protruding inwardly is formed in the lowermost adjacent portion of the screw head 220 inner circumferential surface. As the screw body 210 is inserted into the first or second bone, the lower surface of the head 212 of the screw body 210 is caught by the locking jaws 221 of the screw head 220 . The locking jaw 221 is extended by a length such that the head portion 212 of the screw body 210 is supported, while not in contact with the body portion 211 of the screw body 210 . The head portion 212 of the screw body 210 is caught by the locking jaw 221 and is no longer inserted downward.

The outer peripheral surface teeth 222 corresponding to the shape of the plate teeth 140 are formed on the outer peripheral surface of the screw head 220 . The outer circumferential teeth 222 are formed along the circumferential circumference of the screw head 220 . The outer peripheral tooth 222 is configured to move at a gear ratio set along the longitudinal direction of the through portion 120 when the screw head 220 rotates while meshing with the plate tooth 140 .

6 is a perspective view illustrating a locking state in which the screw body is engaged with the screw head in the locking screw of FIG. 4 . FIG. 7 is a perspective view illustrating the unlocking state in which the screw body engaged with the screw head in FIG. 6 is released.

6 and 7, a portion of the inner peripheral surface of the screw head 220 is formed with inner peripheral teeth 223 corresponding to the shape of the locking teeth 212a of the screw body 210 head portion 212. The inner peripheral surface teeth 223 are formed along the circumference of a part of the inner peripheral surface of the screw head 220 . The inner circumferential teeth 223 may be formed in the lower region of the screw head inner circumferential surface. The height at which the inner peripheral surface teeth 223 extend may be the same as the height at which the locking teeth 212a of the screw body 210 head part 212 extend. The inner peripheral surface teeth 223 are formed to engage the locking teeth 212a of the screw body 210 head portion 212 while the screw head 220 ascends or descends with respect to the screw body 210 .

On the inner circumferential surface of the screw head 220 , the area in which the inner circumferential saw teeth 223 are formed is referred to as a locking area s1 , and an area other than the locking area s1 is referred to as a unlocking area s2 . The inner peripheral surface teeth 223 are formed only in the locking area s1 of a portion of the inner peripheral surface of the screw head 220 . Accordingly, as the height of the screw body 210 is changed in the hollow of the screw head 220, a locking state in which the inner peripheral surface teeth 223 and the locking teeth 212a are engaged or the inner peripheral surface teeth 223 and the locking teeth 212a ) in which the unlocking state is not engaged can be selectively formed. On the other hand, on the inner circumferential surface of the unlocking region s2 of the screw head 220, a plurality of rotation grooves 225 into which an insertion mechanism (not shown) is inserted are formed in the longitudinal direction. By inserting the insertion mechanism into the rotation groove 225 and pressing, the screw head 220 can be lowered. In addition, by inserting the insertion mechanism into the rotation groove 225 and rotating, the screw head 220 can be rotated.

When the inner peripheral surface teeth 223 are formed on the lower inner peripheral surface of the screw head 220, the locking teeth 212a of the screw body 210 are on the inner peripheral surface teeth 223 of the screw head 220 as the screw head 220 rises. An engaging locking state is established. On the other hand, as the screw head 220 descends, a locking release state in which the locking tooth 212a of the screw body 210 is engaged with the inner circumferential tooth 223 of the screw head 220 is formed.

Referring to Figure 8, the procedure using the adjustable gap bone device according to the present invention includes a preparation step, a screw body insertion step, a screw head pressing step, a screw head rotation step, and a screw head raising step. A vertical motion and a rotational motion are selectively applied to the screw head 220 . In this case, the operator may directly press or rotate the screw head 220 through a tool or the like, or the vertical movement and rotational movement of the screw head 220 may be controlled by a driving unit including a motor.

In the preparation stage, the operator places the plate 100 over the first bone and the second bone, one side of the plate 100 is in contact with the surface of the first bone, and the plate 100 is placed on the upper surface of the second bone. Let the other side touch it. At this time, the screw head 220 is mounted on the plate 100 .

In the screw body insertion step, the operator inserts the screw body 210 through the hollow of the screw head 220 and the through portion 120 of the plate 100 to insert the body portion 211 of the screw body 210 into the first or Insertion and fixation into the second bone. At this time, the head portion 212 of the screw body is fixed to the locking projection (221).

When the inner circumferential teeth 223 are formed on the lower inner circumferential surface of the screw head 220, the screw body 210 descends from the inside of the screw head 220 hollow while the locking teeth 212a of the screw body 210 are screwed into the screw head 220 ) is formed in a locking state engaged with the inner circumferential teeth 223 (see FIG. 6).

In the screw head pressing step, as the screw head 220 descends, the head portion 212 of the screw body 210 is positioned in the hollow upper portion of the screw head 220 . Accordingly, a locking release state in which engagement between the locking teeth 212a of the screw body 210 and the inner peripheral teeth 223 of the screw head 220 is released is formed (see FIG. 7 ).

In the screw head rotation step, the screw head 220 is rotated in one direction or the other direction while moving to one side or the other side in the longitudinal direction of the penetrating part 120 . The screw body 210 inserted into the hollow of the screw head 220 is in a state in which engagement with the screw head 220 is released, but moves together with the movement of the screw head 220 . The distance between the first bone and the second bone is adjusted in such a way that the distance between the first bone and the second bone approaches or moves away from each other according to the rotation direction of the screw head 220 .

In the step of raising the screw head, the screw head 220 may naturally be raised due to the inherent elasticity of the bone itself. Accordingly, while the locking teeth 212a of the screw body 210 are engaged with the teeth 223 of the inner peripheral surface of the screw head 220, the locking state is returned from the unlocked state. In the locking state, since the screw body 210 is fixed to the first bone or the second bone, the screw head 220 engaged with the screw body 210 does not move easily along the plate teeth 140 of the plate 100. won't Due to the inherent elasticity of the bone, the screw head 220 may rise by approximately 0.5 mm to 3 mm.

9 is a perspective view showing an embodiment in which an elastic member for assisting the lifting force of the screw head is additionally mounted to the bone orthopedic device with adjustable spacing of FIG. 4 .

Referring to Figure 9, the adjustable gap bone device according to an embodiment of the present invention is disposed between the lower surface of the screw head 220 and the main body 110, one side toward the lower surface of the screw head 220. It may include an inclined elastic member 300 . The elastic member 300 is a washer, and may be a spring washer extending obliquely from one end to the other so that the height of one end and the other end is different from each other. Accordingly, the elastic member 300 may provide an additional lifting force with respect to the inherent elasticity of the bone itself.

Referring to Figure 10, the adjustable gap bone device according to an embodiment of the present invention is formed on the upper surface of the head ratchet teeth 224, and the main body 110 formed on the lower surface of the screw head 220, the head It may include a body ratchet teeth 111 corresponding to the shape of the ratchet teeth 224 . As the screw head 220 rotates, the head ratchet teeth 224 of the screw head 220 are engaged with the body ratchet teeth 111 of the main body 110 . Accordingly, whenever the screw head 220 rotates, a 'click' sound is generated, and a frictional force is applied to the screw head 220 to precisely control the rotation of the screw head 220, as well as when the screw head 220 is stopped. It is possible to prevent the screw head 220 from idling on the main body 110 .

Figure 11 is a plan view showing an embodiment including two locking screws in the bone device of Figure 4 adjustable spacing.

Referring to Figure 11, the adjustable gap bone device according to an embodiment of the present invention may include a first locking screw (200a) and a second locking screw (200b). The second locking screw 200b is disposed in the through portion 120 and is spaced apart from the first locking screw 200a in the longitudinal direction of the through portion 120 . The first locking screw 200a is disposed above the first bone, and the second locking screw 200b is disposed above the second bone. Through this, in a state in which the second locking screw 200b is fixed in position with respect to the second bone, the movement of the first bone can be controlled by operating the first locking screw 200a, and the first locking screw 200a is removed. In a state in which the position is fixed with respect to the first bone, the movement of the second bone may be controlled by operating the second locking screw 200b.

Figure 12 is a plan view showing an embodiment in which a separate screw fixing hole is formed in the adjustable interval bone device of Figure 4;

Referring to FIG. 12 , the plate 100 of the bone orthopedic device with adjustable spacing according to an embodiment of the present invention may have a through portion 120 and a spaced apart screw fixing hole 150 . The locking screw 200 may be operated in a state in which the plate 100 is fixed to the first or second bone by using the fixing screw 151 in the screw fixing hole 150 . Accordingly, the fixing force of the plate 100 is increased, so that a more stable operation is possible.

Hereinafter, the structure and operation of the adjustment value 20 will be described in more detail. Prior to this, the control device 30 assumes that the calculation of how many revolutions in which direction the screw head 220 included in the bone orthopedic device fixed to the patient's bone needs to be rotated is completed. If two or more bone orthopedic devices are fixed to the patient's bone, the selection of which screw head 220 of which bone orthopedic device is completed is also completed.

13 is a reference diagram for the configuration of the adjustment device according to the present specification. 14 is a reference diagram for the corresponding configuration of the first body and the second body. 15 is a reference diagram for the internal configuration of the adjustment device according to the present specification.

Referring to FIG. 13 , the body part according to the present specification may include a first body 21 or a second body 22 .

Referring to FIG. 14 , the first body 21 is configured to rotate the screw body 210 . To this end, the first body 21 may have a tip corresponding to a groove formed on the upper surface of the screw body 210 . The second body 22 is configured to rotate the screw head 220 . To this end, the second body 22 may have a tip corresponding to the groove formed on the upper surface of the screw head 220 .

According to one embodiment of the present specification, the first body 21 or the second body 22 may be coupled to any one of the body portion. That is, the first body 21 and the second body 22 may be used by combining only one as needed in a replacement form. In this case, since the driving unit can be implemented as a single motor, it is possible to reduce the size and cost of the device.

According to another embodiment of the present specification, the first body 21 and the second body 22 may be simultaneously coupled to the body portion. That is, the first body 21 and the second body 22 are integrally formed, and there is no need for the user to directly replace the first body 21 and the second body 22, so that convenience can be improved. In this case, the driving unit may include a first driving motor M1 for rotating the first body 21 and a second driving motor M2 for rotating the second body 22 (see FIG. 15 ). ).

When the first body 21 and the second body 22 are integrally formed, embodiments in which the first body 21 and the second body 22 are disposed may vary. For example, the first body 21 and the second body 22 may be arranged side by side with a predetermined interval. As another example, the first body 21 and the second body 22 may be disposed to face opposite ends of the adjusting device 20 . As another example, the second body 22 may have a cylindrical shape with a space formed therein in the longitudinal direction. In this case, the first body 21 may be disposed in the inner space of the second body 22 . That is, the first body 21 and the second body 22 may be disposed to have the same central rotation axis.

On the other hand, when the first body 21 and the second body 22 are arranged to have the same central axis of rotation, in accordance with the case of using the first body 21 and the case of using the second body 22 . The first body 21 or the second body 22 should be further exposed in the longitudinal direction. To this end, the adjusting device 20 may further include a vertical driving unit A for moving the second body 22 by a predetermined length in the longitudinal direction (see FIG. 15 ).

The control device 30 may output a control signal for controlling the operation of the vertical driving unit. In this specification, the case of using the first body 21 will be referred to as a 'first mode', and the case of using the second body 22 will be referred to as a 'second mode'.

Referring to FIG. 16 , the control device 30 may control the vertical driving unit so that the tip of the first body 21 is more exposed in the longitudinal direction than the tip of the second body 22 in the first mode. have. In the first mode, the control device 30 may control only the first driving motor M1 connected to the first body 21 to rotate.

The control device 30 is configured to move the tip of the second body 22 in the direction of the tip of the first body 21 by a predetermined length in the second mode by a predetermined length compared to the position in the first mode. The vertical driving unit may be controlled. In the second mode, the control device 30 may control only the second driving motor M2 connected to the second body 22 to rotate.

The adjusting device 20 according to the present specification should receive power for the operation of the driving unit and receive a control signal for controlling the operation of the driving unit. Such power and control signals may be directly supplied and received through a wire connected to the control device 30 . Meanwhile, the control device 20 according to the present specification may receive a control signal from the control device 30 using a wireless signal. To this end, the control device 20 includes a wireless communication unit (not shown) that receives a control signal from the control device 30, a power supply unit (not shown) that supplies power to the driving unit, and the control signal. It may include a driving control unit (not shown) for controlling the power supply to the driving unit. The wireless communication unit is Bluetooth (Bluetooth™), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity) , Wi-Fi Direct, and at least one of Wireless USB (Wireless Universal Serial Bus) technologies may be used to support wireless communication. The power supply unit includes a battery, and the battery may be a built-in battery as a primary battery or a rechargeable secondary battery, and in the case of a secondary battery, may be detachably coupled to the adjusting device body for charging or the like.

On the other hand, the control signal may be a signal for how many times to rotate the screw head 220 of the bone device 10 in which direction. At this time, an important premise is that the tip of the second body 22 of the adjusting device 20 must be in contact to rotate the screw head 220 . Whether the tip of the second body 22 and the screw head 220 are in contact may be determined directly by the user or may be determined through a sensor.

According to an embodiment of the present specification, the adjustment device 20 may further include a switch 23 for receiving a user driving control input signal. The user may press the switch 23 while the tip of the second body 22 and the screw head 220 are in contact. In this case, the driving controller may supply power to the second driving motor M2 when a driving control input signal is received through the switch in the second mode.

According to another embodiment of the present specification, the adjusting device 20 may further include a voltage sensor for detecting a voltage difference between the first body 21 and the second body 22 .

Referring to FIG. 17 , in the first mode, only the tip of the first body 21 contacts the screw body 210 and the tip of the second body 22 does not contact the screw head 220 . This state electrically corresponds to an open circuit, and the voltage sensor may output a measurement value corresponding to the open circuit. On the other hand, in the second mode, the tip of the first body 21 is in contact with the screw body 210 and the tip of the second body 22 is in contact with the screw head 220 . Since the screw body 210 and the screw head 220 are in physical contact, it corresponds to an electrically closed circuit. Accordingly, the voltage sensor may output a measured value corresponding to a closed circuit. When the voltage value output from the voltage sensor in the second mode is less than or equal to a preset reference voltage, the driving control unit is in contact with the tip of the second body 22 and the screw head 220, so that the second driving motor power can be supplied.

The control device and the driving control unit include a processor, an application-specific integrated circuit (ASIC), other chipsets, logic circuits, registers, communication modems, and data processing devices known in the art to perform calculations and various control logics. and the like. In addition, when the above-described control logic is implemented in software, the control unit may be implemented as a set of program modules. In this case, the program module may be stored in the memory device and executed by the processor.

The above-described computer program is C/C++, C#, JAVA that can be read by a processor (CPU) of the computer through a device interface of the computer in order for the computer to read the program and execute the methods implemented as a program , Python, may include code coded in a computer language such as machine language. Such code may include functional code related to a function defining functions necessary for executing the methods, etc., and includes an execution procedure related control code necessary for the processor of the computer to execute the functions according to a predetermined procedure can do. In addition, such code may further include additional information necessary for the processor of the computer to execute the functions or code related to memory reference for which location (address address) in the internal or external memory of the computer to be referenced. have. In addition, when the processor of the computer needs to communicate with any other computer or server located remotely in order to execute the above functions, the code uses the communication module of the computer to determine how to communicate with any other computer or server remotely. It may further include a communication-related code for whether to communicate and what information or media to transmit and receive during communication.

The storage medium is not a medium that stores data for a short moment, such as a register, a cache, a memory, etc., but a medium that stores data semi-permanently and can be read by a device. Specifically, examples of the storage medium include, but are not limited to, ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage device. That is, the program may be stored in various recording media on various servers accessible by the computer or in various recording media on the computer of the user. In addition, the medium may be distributed in a computer system connected by a network, and computer-readable codes may be stored in a distributed manner.

As mentioned above, although the embodiments of the present specification have been described with reference to the accompanying drawings, those skilled in the art to which this specification belongs can realize that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

[Explanation of code]

1000: readjustment system for bone type

10: osseous device

20: adjustment device

30: control device

Claims

A system for readjustment after orthopedic surgery, the system comprising:

A locking screw comprising: a screw body having locking teeth formed on the upper outer circumferential surface; and a screw head having inner and outer surface teeth formed on a portion of an inner peripheral surface and an outer surface, respectively, and wherein the inner peripheral surface teeth are engaged with the locking teeth; with bone orthopedic devices;

an adjustment device having a body portion having a shape corresponding to a groove formed in the upper surfaces of the screw body and the screw head, and a driving portion for rotating the body portion in a predetermined direction; and

A control device for outputting a control signal for the rotation direction and the number of rotations to the driving unit of the adjustment device;
The method according to claim 1,

The body part,

a first body having a tip corresponding to a groove formed in an upper surface of the screw body; or

A second body having a tip corresponding to a groove formed on the upper surface of the screw head;
3. The method according to claim 2,

The driving unit,

a first driving motor for rotating the first body; and a second driving motor for rotating the second body.
4. The method of claim 3,

The second body has a cylindrical shape with a space formed therein in the longitudinal direction,

The first body is readjustment system for the bone type, characterized in that disposed in the inner space of the second body.
5. The method according to claim 4,

The adjustment device, the vertical drive unit for moving the second body by a predetermined length in the longitudinal direction; Bone osteotomy readjustment system further comprising.
6. The method of claim 5,

The control device is

A first mode for controlling the vertical driving unit so that the tip of the first body is more exposed in the longitudinal direction than the tip of the second body;

Gol characterized in that the second mode for controlling the vertical drive unit so that the tip of the second body is moved by a predetermined length in the direction of the tip of the first body by a predetermined length than the position in the first mode Orthopedic readjustment system.
7. The method of claim 6,

The control device is

A re-adjustment system for bone type that controls to rotate only the second drive motor when in the second mode.
7. The method of claim 6,

The adjustment device is

a wireless communication unit for receiving a control signal from the control device;

a power supply unit for supplying power to the driving unit; and

Bone type readjustment system further comprising; a driving control unit for controlling the supply of power to the driving unit by the control signal.
9. The method of claim 8,

The adjustment device is

A switch for receiving a user drive control input signal; further comprising,

The drive control unit,

In the second mode, when a drive control input signal is received through the switch, the reconditioning system for bone type to supply power to the second drive motor.
9. The method of claim 8,

The adjustment device is

Further comprising; a voltage sensor for detecting a voltage difference between the first body and the second body;

The drive control unit,

When the voltage value output from the voltage sensor in the second mode is less than or equal to a preset reference voltage, the osseous type readjustment system for supplying power to the second driving motor.