KR101896443B1 - Modular apparatus for reconstructing bones - Google Patents

Abstract

The present invention relates to a modular restoring device of fracture/transformation, comprising a first frame (10) and a second frame (20) which cover arms or legs of a patient while being penetrated by the arms or legs of the patient and face each other at an interval; a third frame (30) which is placed on the first frame (10); a plurality of variable strut modules (40) of which one end is mounted on the first frame (10), the other end is mounted on the second frame (20), and the length is changed; a first driving module (100) which is mounted on the plurality of variable strut modules (40); a second driving module (200) which is mounted on the third frame (30); and fixing means (70) which are coupled to the third frame (30), extended from the third frame (30) in multiple numbers, coupled to the second frame (20), and extended from the second frame (20) in multiple numbers to fix the bone fragments of patient′s arms or legs. Relative locations and postures of the first frame (10) and the second frame (20) are changed according to motions of the variable strut modules (40) by the driving of the first driving module (100), and a location of the third frame (30) is changed by the driving of the second driving module (200), so that driving range expansion and reduction of an accurate location are executed when a fracture portion is rotated and bonded. The present invention can provide a compact/light-weight/high output electric driving module and a restoring device of fracture/transformation.

Description

[0001] MODULAR APPARATUS FOR RECONSTRUCTING BONES [0002]

The present invention relates to a modular restoration device used for reducing a fracture or deformity of an arm or leg of a patient, and more particularly, to a modular restoration device using a conventional stewart platform structure, It is possible to realize additional rotation driving operation by overcoming the limitation of the driving area, and it is possible to realize a compact / light weight / high output electric drive module for precise position reduction and a Stuart pole with excellent X- And more particularly to a fracture / deformation restoration device in which a driving range of a deformation restoration device is maximized.

Minimally invasive fracture reduction surgery is a minimally invasive minimally invasive procedure. In such a fracture reduction procedure, a real-time X-ray equipment such as a C-ARM is used to calibrate the displaced bone , And fixes the corrected bone fragments by inserting an intramedullary nail in the corrected state.

In such a fracture reduction procedure, a real-time X-ray image is acquired with the patient's fractured part between the X-ray source and the two-dimensional sensor of the C-ARM, and the physician views the real- .

Particularly, since the fractured portion of the bone is located deep inside the skin, it is difficult to visually confirm the fracture state of the bone, the reduction process and the occlusal state due to the reduction. Therefore, And to perform fracture reduction surgery.

However, since X-ray imaging equipment such as C-ARM requires continuous investigation of X-rays in order to obtain real-time images, the exposure dose to patients and medical staff is significantly higher than other X-ray equipment that obtain still images. In particular, the risk of radioactive exposure is a major problem for medical personnel who repeatedly perform fracture reduction surgery.

In addition, since various muscles are connected to the bones, a large force is required to conquer the fractured bones, and thus, it is common that several medical personnel cooperate to perform the operation. In order to perform the fracture reduction surgery, a large number of medical staff are needed, which increases the cost of surgery.

In addition, it is not easy to accurately maintain the calibration state until the calibration state is fixed by inserting a metal ball into the bone marrow after correction of the shifted bone is performed by the staff of the medical staff. For this reason, There is a possibility that there is a possibility of inaccurate fracture reduction.

Fracture / deformation restorers are used to stabilize the fragments and facilitate healing of the bones at the site of the healing. The bone restoration site may include a bone morphological position or a coronal buoyancy region. Distraction and reduction / compression devices can be integrated within the fracture / deformation restoration device and can be used to gradually adjust the relative orientation and spacing of portions of bone on opposite sides of the bone repair site .

The fracture / strain restoration device includes a plurality of support members configured to be connected to portions of the bone on opposite sides of the bone repair site, and support members of the fracture / strain relief device attached to the bone sites on opposite sides of the bone repair site And may include a plurality of elongating and contracting / compressing devices configured to adjust the distance between them. The stretcher device is configured to move the support member progressively over a determined amount of time. This gradual separation allows new bone to form within the pore of the bone restoration site. In other cases, reduction or compression across the bone repair site to keep the bone fragments together is required to facilitate healing. Such accommodation typically follows a defined protocol, or treatment plan, whether distracted or conquered / oppressed. After each adjustment, the stretch and retract / compress device is typically held stationary for a period of time to allow new bone to grow and become strong. After the bone repair site is healed, the fracture / deformation restoration device is removed from the bone fragments.

Various embodiments and methods of fracture / deformation restoration devices (and components of fracture / deformation restoration devices) used to stabilize the fragments and facilitate healing of the bones at the restoration sites are disclosed.

Korean Patent Laid-Open Publication No. 10-2015-0129812 discloses a strut configured to be connected to a pair of outer bone-anchoring members along a strut axis, the strut body including a threaded rod and a sleeve, Wherein the sleeve body includes a sleeve body and a sleeve bore extending into at least the sleeve body, wherein the sleeve bore comprises an elongate rod body along a strut axis, the rod body defining an at least partially threaded outer surface, The strut body being configured to receive at least a portion of the threaded rod such that the threaded rod is translatable along the strut axis with respect to the sleeve; And an actuator threadably supported by the strut body and threadably attached to the threaded rod such that rotation of the actuator relative to the threaded rod about the strut axis results in rotation of at least one of the threaded rod and the sleeve, Said actuator being adapted to receive torque to rotate said actuator about a strut axis relative to said threaded rod, said actuator being configured to receive a torque to rotate said actuator about said strut axis relative to said threaded rod, An external bone fixation device is disclosed.

Korean Patent Registration No. 10-1576798 discloses a surgical instrument having a first frame 110 having a shape that surrounds an arm or leg of a patient while passing through a patient's arm or leg, Or a second frame (20) having a shape surrounding the legs and spaced apart from the first frame, and a second frame (20) having one end supported by the first frame and the other end supported by the second frame And an operation module 100 including a variable leg 130 of the variable leg 130. Each of the plurality of variable legs 130 includes an actuator for varying the length of the variable leg 130, System is disclosed.

However, the struts or variable legs in the above documents have a limited driving range as a Stuart platform (hexapod) structure with one driving mechanism, and actuators for driving struts or variable legs are integrally formed in a strut or variable leg As a configuration to be mounted, a patient wearing a bone anchoring / contracting device may feel heavy and may cause inconvenience in daily life.

In addition, since the struts or variable legs, which are existing external fixation devices, are heavy steel and have a structure of steel material, X-rays are not transmitted and it is difficult to confirm a fractured portion.

SUMMARY OF THE INVENTION The present invention has been made to overcome the above-described conventional problems, and it is an object of the present invention to overcome the limitations of the driving range of the existing Stewart platform to realize an additional rotation driving operation and to provide a compact, lightweight, And to provide a fracture / deformation restoration device that maximizes a driving range of a fracture / deformation restoration device through a drive module and a Stuart pole having excellent X-ray permeability and high rigidity.

In order to achieve the above object, according to one embodiment of the present invention, there is provided a fracture / deformation restoration device having a shape that surrounds a patient's arm or leg while the patient's arm or leg penetrates, A frame and a second frame; A third frame disposed on the first frame; A plurality of variable strut modules each having one end mounted on the first frame and the other end mounted on the second frame, the variable strut module having a variable length; A first drive module mounted on the plurality of variable strut modules; A second driving module mounted on the third frame; And securing means coupled to the third frame and extending to the plurality of third frames for securing a bone fragment of the patient's arm or leg and extending from the second frame to the plurality of second frames, , The relative position and posture of the first frame and the second frame are varied according to the operation of the variable strut module due to the start of the first driving module, and the position of the third frame So that the driving range is expanded and the precise position is reduced at the time of rotational bonding of the fractured portion.

According to an embodiment of the present invention, the first drive module includes a plurality of first motor modules including a motor and a speed reducer, and the second drive module includes a second motor module including a motor and a speed reducer, and a gear and a gear plate.

According to an embodiment of the present invention, each of the plurality of variable strut modules includes a lead screw, a sleeve, and a position fixing nut, and the lead screw has an angle of a thread for maintaining the self-standing state, The leadscrew having an outer surface that is at least partially threaded, the sleeve including a sleeve body and at least a sleeve bore extending into the sleeve body, Accommodates at least a portion of the leadscrew for movement along the axis of the variable strut module relative to the sleeve.

Preferably, the first frame, the second frame and the third frame are made of engineering plastics (EP).

Preferably, the lead screw of the variable strut module is made of engineering plastic (EP), and the sleeve is made of carbon fiber reinforced plastic (CFRP).

According to an embodiment of the present invention, the proximal end portions of the flexible strut module mounted on the first frame are provided with flanges respectively formed at both ends thereof and a flange formed with a fastening hole at one end thereof facing the inside of the first frame from the flange, And a first joint and a second joint universal joint, a ball joint, and a joint joint for mounting the plurality of variable strut modules to the first and second frames, respectively.

Preferably, the sleeve is provided with one of a magnet displacement sensor, a laser displacement sensor, an ultrasonic sensor, and a magnetic force detection sensor for detecting a displacement of the lead screw.

Preferably, the plurality of first motor modules are detachably mounted on the motor mounting portion.

Preferably, a ruler is formed on the at least partially threaded outer surface of the leadscrew.

According to the present invention, it is possible to provide a small-sized / light-weighted / high-output electric drive module and a fracture / deformation restoration device, and it is possible to provide an electric drive module having excellent X- A fracture / deformation restoration device can be provided.

In addition, according to the present invention, it is possible to remove the motor which interferes with the operation after the fracture reduction position by modularization of the respective components, in particular, the drive module, and the position of the drive module can be changed as needed, (Second drive module) is added, which is advantageous in widening the driving range and conquering a precise position.

In addition, the use of engineering plastics and carbon fiber reinforced plastics with excellent X-ray permeability allows sufficient observation of fracture / deformation parts using C-ARM during fracture reduction surgery or restoration, And the view of the fractured portion / deformed portion can be easily secured. In addition, by using engineering plastic and carbon fiber reinforced plastic material as main components, it is possible to reduce the burden on the patient to be continuously worn by attaining light weight of the restoration device.

In addition, it is possible to prevent a user from making a mistake or a radical displacement of the fracture / deformation restoration device due to disturbance from the outside, thereby preventing intense manipulation from being input.

1 is a perspective view showing a fracture / strain restoration device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing details of each configuration of the fracture / strain restoration device of FIG. 1; FIG.
3 is a perspective view illustrating a limitation of driving of a conventional Stewart platform and enlarging the operation area by adding a rotatable driving module.
4 is a perspective view showing a drive module and an operating state of the fracture / strain restoration device of FIG.
5 is a perspective view showing a coupled state of the driving module according to an embodiment of the present invention.
6 is a perspective view illustrating a variable strut module according to an embodiment of the present invention.
7 (a) and 7 (b) are perspective views showing a modified example of the variable strut module of FIG.
8 is a perspective view showing an X-ray image of the fracture / strain restoration device of FIG. 1;

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings and specification, there are shown in the drawings and will not be described in detail, and only the technical features related to the present invention are shown or described only briefly. Respectively. The specific configurations and functions described in detail herein are not intended to be limiting, but merely as the basis for the claims and as a basis for teaching the ordinary skill in the art to which the present invention pertains in various ways.

For convenience only, certain terms are used in the following description and are not limiting.

The words "right", "left", "lower", "upper", "lower", and "upper" refer to directions in the referenced drawings. The terms " forward ", "rearward "," upward ", " downward ", "inside "," outside ", and related words and / or phrases refer to the preferred position and orientation in the body of reference. For example, the words "inward" and "outward " refer to directions toward and away from the midline extending vertically through the body, respectively. The terms "proximal" and "distal direction " refer to a direction toward and away from where an accessory organ such as a leg, respectively, is connected to the rest of the body. Terms include words listed above, derivatives thereof, and words of similar meaning.

The term " plurality "means more than one, as used herein. When a range of values is expressed, other embodiments include from one particular value and / or to another specific value.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fracture / strain restoration device according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a fracture / strain restoration device according to an embodiment of the present invention, FIG. 2 is a perspective view showing details of each configuration of the fracture / FIG. 4 is a perspective view showing a driving module and an operating state of the fracture / strain restoration device of FIG. 1, FIG. 5 is a perspective view showing a combined state of the driving module according to an embodiment of the present invention, FIG. 6 is a perspective view showing a variable strut module according to an embodiment of the present invention, FIG. 7 is a perspective view showing a modified example of the variable strut module of FIG. 6, and FIG. 8 is a cross- 1 is a perspective view showing an X-ray photographed image of the device.

Referring to FIG. 1, a fracture / strain restoration device 1 according to an embodiment of the present invention is mounted on a fracture / deformed portion of an arm or a leg, and the fracture / And are joined with the fragments of the arms or legs. The fracture / strain restorative device 1 is used to move a calibrated position to a calibrated position by exerting a force on a skeleton displaced from the correct position.

As shown in FIG. 1, the fracture / strain restoration device of the present invention includes a first frame 10 and a second frame 10, which have a shape that surrounds a patient's arm or leg while passing through a patient's arm or leg, Two frames 20; A third frame 30 mounted on the first frame 10; A plurality of variable strut modules (40) whose one ends are supported on the first frame (10) and the other ends are respectively supported on the second frame (20) and whose lengths are variable; A plurality of securing means (70) extending from said third frame (30) and said second frame (20) for securing a bone fragment of a patient's arm or leg; A first drive module (100) detachably mounted on the first frame (10) and varying the length of each variable strut module (40); And a second driving module 200 mounted on the third frame 30. The operation of the variable strut module 40 due to the start of the first driving module 100 causes the first frame 10 and the second frame 20 are varied and the position of the third frame 30 is varied by the start of the second driving module 200. [

1, the fracture / strain restoration device 1 has a circular first frame 10 having a shape that surrounds a patient's arm or leg while the patient's arm or leg penetrates, And a second frame 20 (e.g., more than one pair).

The first frame 10 may be composed of first subframes 11 and 12 and the second frame 20 may be composed of second subframes 21 and 22. The first subframe 11 And 12 constitute the first frame 10 by being coupled with each other by using bolts and nuts and the second sub frames 21 and 22 are assembled by using bolts and nuts, can do. Thus, the first sub-frame 11, 12 and the second sub-frame 21, 22 are separated from each other without interposing the fracture / strain restoration device 1 from the leg or arm end of the patient, In a part of a leg or a fractured portion of an arm and to be combined with each other.

The first frame 10 and the second frame 20 may have a substantially circular, elliptical or polygonal shape surrounding the patient's arm or leg with sufficient space therethrough, 40, the shape is not limited.

According to an embodiment of the present invention, the apparatus further includes a third frame 30 mounted on the first frame 10.

The third frame 30 may have a shape such that the patient's arms or legs can pass therethrough like the first frame 10 and may have a shape conforming to the shape of the first frame 10, And has a semi-circular shape. A plurality of securing means 70, which will be described later, is mounted on the third frame 30.

The first frame 10, the second frame 20 and the third frame 30 constitute the framework of the fracture / strain restoration device 1, and a flexible strut module and a fixing means described later are combined.

According to an embodiment of the present invention, the first driving module 100 includes a plurality of first motor modules 50 including a motor 51 and a speed reducer 52, and the second driving module 200 includes a motor 61 A gear 64 and a gear plate 65. The second motor module 60 includes a speed reducer 62 and a gear 62,

The plurality of first motor modules 50 are detachably mounted on the motor mounting portion 49 and vary the lengths of the variable strut modules 40 by the start of the first motor module 50.

The first motor module 50 includes a motor 51 and a speed reducer 52. The first motor module 50 can be detachably attached to the motor mounting portion 49 by a quick clamp 53. [

The relative positions and attitudes of the first frame 10 and the second frame 20 are varied according to the operation of the variable strut module 40 by the start of the plurality of first motor modules 50. [

According to an embodiment of the present invention, the second motor module 60 constituting the second drive module 200 is mounted on a housing that houses the gear 64, and the housing in which the gear 64 is housed is mounted on the bolt And the gear plate 65 is installed at the lower portion of the third frame 30. The engagement of the gear 64 with the gear plate 65 causes the gear plate 65 The third frame 30 is also displaced in synchronization with the displacement of the gear plate 65 as the displacement occurs.

In the conventional parallel type structure, the forces applied to the respective actuators are dispersed so that it can be designed in a small size, and a six-member induction mechanism can be realized. However, a conventional Stuart platform (hexapod) structure has a limited driving range The driving range can not all be satisfied. Referring to FIG. 3, the conventional Stuart platform performs displacement, angle, and rotation by relative movement of struts. However, since the driving length is limited, when the operation limit position is reached, further driving is not generated, which is a great obstacle in the operation. In other words, you can not proceed with the rotational alignment. In order to solve this problem, the present invention combines the second driving module 200 to perform the additional rotation operation.

4 (a) and 4 (b), according to an embodiment of the present invention, the first driving module (first motor module 50) Move in the axial direction and adjust the angle. Thereafter, the Z-axis rotation (rotation mechanism addition function) is performed by the second drive module 200, and displacement is not generated in the X and Y axes when the Z-axis is rotated. That is, the third frame 30 and the plurality of variable strut modules 40 as shown in FIG. 4 (b) are simultaneously operated to have an operation range necessary for the operation, and precise position reduction can be achieved .

Hereinafter, a variable strut module 40 according to an embodiment of the present invention will be described.

The variable strut module 40 is one end supported by the first frame 10 and the other end supported by the second frame 20. The variable strut module 40 and the first frame 10 or the second frame 20 May be coupled to each other using a universal joint or a ball joint.

Therefore, each of the plurality of variable strut modules 40 is detachable from the fracture / deformation restoration device.

In addition, the angle at which the variable strut module 40 and the first frame 10 are engaged and the angle at which the variable strut module 40 and the second frame 20 are engaged can be varied.

Referring to FIG. 6, in one embodiment of the present invention, the variable strut module 40 includes a lead screw 41, a sleeve 42, and a position fixing nut 43. The lead screw 41 is set to the angle of the screw thread so that it can always be in a self-sustaining state by a constant load without being released by itself, and the engineering plastic is used so that it is light and has excellent X- It is not. The lead screw 41 and the sleeve 42 are configured to be movable relative to each other. The sleeve 42 is made by bonding carbon fiber-reinforced plastic to an engineering plastic nut so that it is lightweight and has excellent X-ray permeability and sufficient rigidity, or includes only carbon fiber-reinforced plastic. The variable strut module 40 also includes a first joint 44 configured to be connected to the leadscrew 41 and a second joint 45 configured to be coupled to the sleeve 42. One of the first and second joints 44 and 45, for example, the first joint 44 is a rotatable joint and the second joint 45 is a non-rotatable joint, And vice versa, and both joints 44 and 45 may be rotatable joints.

The variable strut module 40 moves the lead screw 41 up and down with respect to the sleeve 42 by the start of the first motor module 10 mounted on the first frame 10.

The variable strut module 40 includes a first end such as a proximal end 46 and a second end such as a distal end 47. The variable strut module 40 also includes an axis of the variable strut module extending from the proximal end 46 to the distal end 47. As shown in the illustrated embodiment, the axis of the variable strut module is the central axis. The length of the lead screw 41 is changed by moving the lead screw 41 up and down with respect to the sleeve 42 by the start of the first motor module 50 mounted on the motor mounting portion to be described later, The position fixing nut 43 is secured for safety so that it is no longer moved at the position, and is fixed at that position by tightening the position fixing nut 43.

A flange 80 is formed at both ends of the flange 80 to detach the first motor module 50 from the proximal ends 46 and 46 of the paired two variable strut modules 40, And a motor mounting portion 49 having two leg portions 81 with fastening holes formed at one end thereof toward the inside of the first frame 10 are formed. The plurality of motor mounting portions 49 are mounted such that the plurality of first motor modules 50 are mounted on the top and the proximal ends 46 and 46 of the plurality of variable strut modules 40 are mounted on the bottom Grooves 49a and 49a.

The shapes of the mounting grooves 49a and 49a correspond to the shapes of the engaging projections on the lower portion of the first motor module 50 and the engaging projections on the upper portion of the variable strut module 40. The key shapes, But may be any one of the shapes.

The two leg portions 81 of the motor mounting portion 40 are screwed to the lower outer surface of the first frame 10 so that two paired variable strut modules 40 are fastened to the first frame 10 10).

On the other hand, distal end portions 47, 47 of the variable strut module 40 are screwed to the outer side surfaces of the second frame 20, respectively. The proximal ends 46 and 46 of the two paired variable strut modules 40 are mounted integrally to the first frame 10 by the motor mounting portion 49 and the distal ends 47 and 47 And are separately mounted on the second frame 20, respectively.

A plurality of variable strut modules 40 are provided for each fracture / strain restoration device 1, and in particular, six variable strut modules 40 can be realized. Accordingly, the relative position and posture between the first frame 10 and the second frame 20 can have six degrees of freedom. For example, with respect to the second frame 20, the first frame 10 moves in the X-axis direction, the Y-axis direction, the Z-axis direction, the rotation around the X-axis, It is possible to freely perform the rotation about the axis and the complex movement and / or rotation thereof. Depending on the maneuvering of the user steering module (not shown), the start of the first motor module 50 mounted on the fracture / strain restoration device causes each variable strut module 40 to operate synchronously or asynchronously, And posture, and is moved with a physical force enough to turn the displaced fragments in place.

Preferably, according to an embodiment of the present invention, the lead screw 41 is provided with a displacement sensor for detecting the displacement of the lead screw. The displacement sensor can not accurately identify the strut position only by the encoder information of the motor when the motor is detached and reattached. To solve this problem, a displacement sensor is installed. You can always check the position by mounting a displacement sensor.

It is possible to measure an absolute position necessary for detachment and attachment of a drive module such as a motor by providing a magnet displacement sensor capable of measuring time and returning distance with respect to the running speed of the pulse in the sleeve 42 of the variable strut module 40.

In an embodiment of the present invention, the magnet displacement sensor is provided as a means for measuring the absolute position necessary for attaching and detaching the drive module, but the present invention is not limited thereto. Any one of the laser displacement sensor, the ultrasonic sensor, .

According to one embodiment of the present invention, a ruler 90 is formed on the at least partially threaded outer surface of the leadscrew 41, as shown in FIG.

It is possible to confirm the position of the lead screw 41 at present by forming a ruler 90 on the outer surface of the lead screw 41 and input it to the adjusting device so as to directly confirm the actual amount of deformation of the lead screw 41 . On the other hand, it is preferable that the setting of the lead screw 41 using the scale 90 is set after confirming directly by the doctor for the safety of the patient.

The anchoring means 70 can be supported on the outside of the skin surrounding the bone portion and can extend into the bone fragment through a soft tissue disposed between the skin and the skin and the bone portion.

As shown in Fig. 1, the fixing means 70 fixes the fragments of the patient's arms or legs to the second frame 20 and the third frame 30, respectively, and the fixing means 70 A plurality of pins extending in the direction of the second frame 20 and the third frame 30 in a state of being embedded and a jig for fixing the plurality of pins to the second frame 20 and the third frame 30 do. For example, one end of a pin is inserted into a bone fragment of a patient using a screw formed at the distal end of a plurality of pins, the pin is fixed to the bone fragment, and the other end of the pin is fixed to the second frame 20 and the third It can be fixed to the frame 30.

According to an embodiment of the present invention, the leadscrew 41 of the first frame 10, the second frame 20, the third frame 30 and the variable strut module 40 is made of Engineering Plastics (EP ).

In addition to strength and elasticity, engineering plastics (EP) are excellent in impact resistance, abrasion resistance, heat resistance, cold resistance, chemical resistance and electrical insulation. They are used for home appliances and general goods as well as cameras, watch parts, aircraft structural materials, electronics It can be used in various fields.

According to one embodiment of the present invention, the sleeve 42 of the variable strut module 40 is made of Carbon Fiber Reinforced Plastic (CFRP).

Carbon fiber reinforced plastic (CFRP) has excellent dimensional stability due to its small coefficient of thermal expansion and excellent performance such as electrical conductivity, corrosion resistance, vibration damping property and X-ray permeability.

In the structure of the fracture / strain restoration device 1 according to the embodiment of the present invention, the diameter of the strut module 40 is minimized and the number of parts is simplified in consideration of the rigidity required in the operation, so that the variable strut module 40, The module 40 has sufficient free space for the X-ray to pass therethrough. Accordingly, the fracture portion can be sufficiently observed using a C-ARM (not shown) during the procedure of reducing the fracture, The use of the engineering plastic and the carbon fiber reinforced plastic excellent in line permeability makes it easy to secure the visibility of the fractured portion / deformed portion, and the weight of the fractured / deformed restored device 1 can be reduced.

8 is a perspective view showing an X-ray image of the fracture / strain restoration device of FIG. 1;

8, in the structure of the fracture / strain restoration device 1, it is easy to secure the view of the fractured portion / deformed portion by using the engineering plastic and the carbon fiber-reinforced plastic excellent in X-ray transmittance, - Since the line image clearly appears, it is possible to sufficiently observe a fractured portion using a C-ARM (not shown) or the like during a fracture reduction procedure and significantly reduce the amount of exposure to patients and medical personnel.

The system for operating the fracture / deformation restoration apparatus according to an embodiment of the present invention is not described in detail, but a C-ARM or the like obtains a real-time X-ray image of a fractured portion of a patient's arm or leg, And the obtained real-time X-ray image can be displayed on a display screen such as an integrated operating device (not shown).

The user manipulation module (not shown) inputs a manipulation for manipulating the fracture / strain restoration device 1 from a user, for example, a medical staff, and outputs the manipulation limit of the restoration device during operation so that the user can sense the limitation , The fracture / deformation restoration device 1 operates in response to the operation input from the user manipulation module, and transmits the feedback according to the operation to the user.

A control module (not shown) performs the function of controlling the fracture / deformation restoration device between the user control module and the fracture / deformation restoration device according to the input from the user control module, And supply of a driving current.

As described above, according to the present invention, it is possible to remove the motor that interferes with the operation after the fracture reduction position by modularization of the respective components, in particular, the drive module, and the position of the drive module can be changed as needed, , And a rotating mechanism (second driving module) are added, so that the driving range can be widened and the precise position reduction can be facilitated.

In addition, the use of engineering plastics and carbon fiber reinforced plastics with excellent X-ray permeability allows sufficient observation of fracture / deformation parts using C-ARM during fracture reduction surgery or restoration, And the view of the fractured portion / deformed portion can be easily secured. In addition, since the struts or variable legs, which are known external fixation devices, are made of a steel material, they are heavy and do not transmit X-rays and thus it is difficult to confirm a fractured portion. However, in the main components of the fracture / And the carbon fiber reinforced plastic material, it is possible to achieve the rigidity and lightness required in the operation, and the X-ray permeability is excellent, so that it is easy to identify the fracture portion, and a plurality of motor modules and a plurality of variable strut modules can be individually It is possible to attach and detach the device to the fracture / deformation restoration device, thereby reducing the burden on the patient who needs to continuously wear the restoration device.

Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and alterations can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention described in claims and their equivalents.

1: fracture / deformation restoration device 10: first frame
20: second frame 30: third frame
40: variable strut module 41: lead screw
42: Sleeve 43: Position fixing nut
49: motor mounting part 50: first motor module
51, 61: motor motor 52, 62: speed reducer
64: gear 65: gear plate
70: Fixing means 90: Ruler
100: first driving module 200: second driving module

Claims (9)

A first frame (10) and a second frame (20) having a shape that surrounds a patient 's arm or leg when the patient' s arm or leg penetrates and are spaced apart from each other;
A third frame 30 mounted on the first frame 10;
A plurality of variable strut modules (40) having one end mounted on the first frame (10) and the other end mounted on the second frame (20) and having variable lengths;
A first drive module (100) mounted on the plurality of variable strut modules (40);
A second drive module (200) mounted on the third frame (30); And
The second frame 20 is fastened to the third frame 30 and extended from the third frame 30 to be fixed to the second frame 20 in order to fix the fragments of the patient's arms or legs, And a plurality of fastening means (70)
The relative position and attitude of the first frame 10 and the second frame 20 are varied according to the operation of the variable strut module 40 by the start of the first driving module 100, The position of the third frame 30 is varied by the start of the module 200, so that the driving range is expanded and the precise position is reduced at the time of rotational bonding of the fractured portion,
The first driving module 100 includes a plurality of first motor modules 50 including a motor 51 and a speed reducer 52,
The second drive module 200 includes a second motor module 60 composed of a motor 61 and a speed reducer 62, a gear 64 and a gear plate 65. . delete The method according to claim 1,
Each of the plurality of flexible strut modules 40 includes a lead screw 41, a sleeve 42, and a position fixing nut 43,
The lead screw 41 has an angle of a thread for maintaining the self-standing state,
The leadscrew (41) extends along the axis of the variable strut module, and the leadscrew (41) has a partially threaded outer surface,
The sleeve (42) includes a sleeve body and a sleeve bore extending into the sleeve body,
Wherein the sleeve bore accommodates a portion of the leadscrew (41) such that the leadscrew (41) moves along the axis of the variable strut module relative to the sleeve (42). The method according to claim 1,
Wherein the first frame (10), the second frame (20) and the third frame (30) are made of engineering plastic (EP) or carbon fiber reinforced plastic (CFRP). The method of claim 3,
The lead screw 41 of the variable strut module 40 is made of engineering plastic EP,
Wherein the sleeve (42) is made of engineering plastic (EP) and carbon fiber reinforced plastic (CFRP). The method according to claim 1,
A flange 80 formed at both ends of the flexible strut module 40 mounted on the first frame 10 and a flange 80 formed at both ends of the flexible strut module 40 are provided on the proximal ends 46 and 46 of the first frame 10, A motor mounting portion 49 having two leg portions 81 with a fastening hole formed at one end thereof facing the inside is formed,
The first joint 44 and the second joint 45 for mounting the plurality of variable strut modules 40 to the first and second frames 10 and 20 may be any one of a universal joint, a ball joint, Wherein the one or more fracture / The method of claim 3,
Wherein the sleeve (42) is provided with one of a magnet displacement sensor, a laser displacement sensor, an ultrasonic sensor, and a magnetic force detection sensor for detecting a displacement of the lead screw (41). The method according to claim 6,
Wherein the plurality of first motor modules (50) are detachably mounted on the motor mounting portion (49). The method of claim 3,
And a ruler (43) is formed on a partly threaded outer surface of the lead screw (41).

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