KR20220072407A - bone implanting unit and manufacturing method thereof - Google Patents

Abstract

In order to improve precision, the present invention obtains image information on a fractured bone and loads it into a simulation device, and based on the image information, a plurality of pieces including external and internal bone marrow cavity information for each fragment of the fractured bone A first step of generating a virtual three-dimensional virtual bone fragment image; A plurality of the three-dimensional virtual bone fragment images are virtually arranged based on standard bone information stored in the simulation device, so that the intramedullary canal information is continuously aligned, and a plurality of the three-dimensional virtual bone fragment images virtually aligned a second step of setting a virtual unit image that is design information of a bone implanting unit to match a virtual unit image corresponding to a preset restoration position; A temporary flagellum model corresponding to the type of fractured bone is 3D printed and manufactured, and a temporary unit is 3D printed and manufactured based on the virtual unit image, and the temporary unit is pre-assembled using the temporary bone flagellum. a third step to be corrected; And the bone implanting unit comprising a core part inserted into the bone marrow cavity of the fractured bone based on the corrected temporary unit and a fixing plate integrally formed with one end of the core part and fixed to cover the outer surface of the epiphyseal end is final It provides a method for manufacturing a bone implanting unit comprising a fourth step of being manufactured.

Description

Bone implanting unit and manufacturing method thereof

The present invention relates to a bone implanting unit and a manufacturing method thereof, and more particularly, to a bone implanting unit having improved precision and a manufacturing method thereof.

The human body is made up of various types of bones, and among them, the long bone has the tibia, fibula and femur as the long bones of the leg, and the radius, ulna, and humerus as the long bones of the arm.

On the other hand, Figure 1 is an exemplary view of the iliac bones of the human body.

In detail, the long bone 1 is the main part of the bone and is formed at both ends of the diaphysis 3 extending in the longitudinal direction and the epiphysis 2a formed wider than the diaphysis 3 . , 2b), and between the epiphyseal ends (2a, 2b) and the stem (3) is referred to as an epiphyseal end. The bone stem (3) is formed in a hollow shape in which the bone marrow cavity (3a) in which the bone marrow is filled in the central portion in the longitudinal direction is formed. And, the epiphyseal ends 2a and 2b are made of cancellous bone, and growth plates are formed on the epiphyseal ends 2a and 2b so that bone growth proceeds during the growth phase.

On the other hand, when a fracture occurs in the iliac bone due to illness, carelessness during exercise, a fall, or a traffic accident, reduction is achieved through non-surgical treatment methods and surgical treatment methods.

In detail, non-surgical treatment methods include manual correction to fit misaligned bones in place, and fixation using casts or functional braces or pins. And, the surgical treatment method includes internal fixation using an internal fixation device for the treatment of traumatic fractures in the human body and external fixation using an external fixation device fixed outside the body.

At this time, the internal fixation device is used more frequently than the external fixation device in actual clinical practice, and there are various types such as a fusion plate for fracture, a screw for fusion fracture, and an intramedullary metal nail (hereinafter referred to as endosseous correction) depending on the treatment site, purpose of the procedure, and the patient's condition. is initiated The surgical treatment method including such an internal fixation device is used to treat these iliac fractures in the case of the elderly or growing children whose damage is severe or the bones do not adhere well.

In detail, the bone marrow fusion plate and the bone marrow inner tablet are formed of a human-friendly metal material while having rigidity to support an external force, and are made of titanium or a titanium alloy material. At this time, the fracture fusion plate is fixed through a screw that is placed on the outside of the fractured bone to connect the fractured bones. And, the metal nail for intraosseous cavity is inserted into the bone marrow cavity formed along the center of the iliac bone, and is fixed through a screw fastened to the end.

On the other hand, in the conventional bone marrow cavity fixation, the bone marrow plate is fixed to the epiphyseal end of the long bone through a screw, and the metal nail for intraosseous cavity connected to one side of the bone fusion plate is inserted into the bone marrow cavity formed inside the fractured bone and is fractured. It is provided so that the bones are connected and joined.

At this time, according to the conventional fracture type, the fusion plate or the metal nail for intraosseous cavity is selected and used for surgery. However, in the case of a patient with multiple complex and interosseous fractures at the same time, since the fracture fusion plate and the metal nail for endothenial cavity are separately provided and fixed to the human body, the number of screws fixed to the skin or bone increases. For this reason, the aesthetics is not good and the treatment period is increased, and in particular, in the case of growth stage patients such as children and adolescents, there was a problem that the growth plate was damaged due to a number of screws fixed to the osseous region, and thus the growth plate was not properly grown.

In addition, there was a problem in that the treatment of fractured bones could not proceed properly if the fusion plate for fracture and the metal nail for endoostomy were not prepared to fit the patient's body.

Korean Patent Publication No. 10-2005-0047679

In order to solve the above problems, an object of the present invention is to provide a bone implanting unit having improved precision and a manufacturing method thereof.

In order to solve the above problems, the present invention obtains image information on a fractured bone and is loaded into a simulation device, and based on the image information, the appearance and internal bone marrow cavity information for each fragment of the fractured bone are obtained based on the image information. A first step of generating a plurality of virtual three-dimensional virtual bone fragment images including; A plurality of the three-dimensional virtual bone fragment images are virtually arranged based on standard bone information stored in the simulation device, so that the intramedullary canal information is continuously aligned, and a plurality of the three-dimensional virtual bone fragment images virtually aligned a second step of setting a virtual unit image that is design information of a bone implanting unit to match a virtual unit image corresponding to a preset restoration position; A temporary flagellum model corresponding to the type of fractured bone is 3D printed and manufactured, and a temporary unit is 3D printed and manufactured based on the virtual unit image, and the temporary unit is pre-assembled using the temporary bone flagellum. a third step to be corrected; And the bone implanting unit comprising a core part inserted into the bone marrow cavity of the fractured bone based on the corrected temporary unit and a fixing plate integrally formed with one end of the core part and fixed to cover the outer surface of the epiphyseal end is final It provides a method for manufacturing a bone implanting unit comprising a fourth step of being manufactured.

On the other hand, the present invention is inserted into the intramedullary cavity formed inside the fractured bone, through the intramedullary cavity information arranged and displayed inside each of a plurality of three-dimensional virtual bone fragment images generated based on the image information on the fractured bone. a core part having a length and diameter set; and a rounded curved plate shape to face the outer surface of the epiphyseal end formed at one end of the fractured bone, and is fixed to the epiphyseal end through a fixing screw, passing through the metaphyseal end portion from the bone marrow cavity at one end connected to the core portion It provides a bone implanting unit including a fixing plate integrally provided at one end of the core portion through the connecting portion extending to be bent in multiple stages so as to pass through the inlet through the outer surface of the epiphyseal end.

Through the above solutions, the present invention provides the following effects.

First, through a form in which a general fusion plate for fracture treatment and a metal chisel for treatment of interosseous fractures of long bones are integrally fused, bone restoration means of different functions are fixed at the same time using a minimum number of screws, thereby reducing the area of the wound in the surgical area The period is shortened and the external scars are reduced, so the treatment satisfaction can be significantly improved.

Second, the design information of the core part inserted into the bone marrow cavity and the fixing plate facing the outer surface of the epiphyseal end is virtual unit image is placed on the 3D virtual bone fragment image generated based on the fractured bone, and then the image is processed to determine the fractured bone of each patient. Since it can be precisely designed in response to the bone condition, the precision of the finally manufactured bone implanting unit can be significantly improved.

Third, it is possible to practice in an environment similar to actual surgery by manufacturing and pre-assembling a temporary unit and a temporary skeletal model based on a virtual image. A high-precision reduction device can be provided for the treatment of patients with simultaneous interosseous fractures.

Fourth, as the bone penetration position of the multi-bent connection part is set to the metaphyseal end to integrally connect between the core part and the fixed plate of the virtual unit image, it is possible to prevent problems due to growth plate damage such as asymmetric growth of the human body in advance, so that the treatment prognosis can be significantly improved.

1 is an exemplary view of the iliac bones of the human body.
Figure 2 is a flowchart for a method of manufacturing a bone implanting unit according to an embodiment of the present invention.
Figure 3 is an exemplary view showing a three-dimensional virtual bone fragment image in the manufacturing method of the bone implanting unit according to an embodiment of the present invention.
4 and 5 are exemplary views illustrating a design process of a virtual unit image in a method of manufacturing a bone implanting unit according to an embodiment of the present invention.
Figure 6 is an exemplary view showing the correction process of the temporary unit through the temporary bone model in the manufacturing method of the bone implanting unit according to an embodiment of the present invention.
7 is a perspective view of a bone implanting unit manufactured according to an embodiment of the present invention.

Hereinafter, a bone implanting unit and a manufacturing method thereof according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a flowchart for a method of manufacturing a bone implanting unit according to an embodiment of the present invention. And, Figure 3 is an exemplary view showing a three-dimensional virtual bone fragment image in the manufacturing method of the bone implanting unit according to an embodiment of the present invention, Figures 4 and 5 are bone implants according to an embodiment of the present invention. It is an exemplary diagram showing the design process of the virtual unit image in the manufacturing method of the unit. And, Figure 6 is an exemplary view showing the correction process of the temporary unit through the temporary skeletal model in the manufacturing method of the bone implanting unit according to an embodiment of the present invention, 7 is manufactured according to an embodiment of the present invention It is a perspective view of a bone implanting unit.

2, the bone implanting unit according to the present invention generates a three-dimensional virtual bone fragment image (s10), virtual unit image virtual setting (s20), temporary unit correction (s30), bone implantation unit manufacturing (s40) ) includes a series of steps such as In this case, the bone implanting unit according to the present invention is preferably understood as an internal fixation device for reducing bone fractures of the human body, particularly when long bones such as the humerus are fractured into a plurality of pieces.

At this time, the bone implanting unit 10 according to the present invention is preferably understood as an internal fixation device for treating multiple complex and interosseous fractures at the same time in long bones such as the humerus. At this time, the bone implanting unit 10 is a conventional intramedullary nail (IM nail) and a fracture plate (plate) are integrally formed to suitably match the fractured bone of the patient, so that the bone The accuracy of the conquest was improved.

In detail, referring to FIGS. 3 to 5 , the three-dimensional virtual bone fragment images b1, b2, and b3 are preferably generated through the following process.

First, image information about the fractured bone is acquired and loaded into a simulation device. In this case, it is preferable to understand that the image information is a CT image obtained by performing a CT scan of the patient's human body including the fractured bone. And, the simulation device acquires/acquires design information of the bone implanting unit 10 for a fracture treatment plan and fracture treatment based on a CT image acquired with respect to the patient's human body and a design image pre-stored in the simulation device It is desirable to understand it as a computer device that generates it.

And, based on the image information, a plurality of three-dimensional virtual bone fragment images (b1, b2, b3) including the external and internal bone marrow cavity information (c1, c2, c3) for each fragment of the fractured bone are virtual It is desirable to create In detail, the image information may be generated as a virtual three-dimensional image by extracting the outer shape of each bone fragment and the inner surface profile of each bone marrow cavity displayed in each cross-sectional image of the CT image.

At this time, each of the three-dimensional virtual bone fragment images (b1, b2, b3) is preferably stored separately as an independent layer. In addition, each of the three-dimensional virtual bone fragment images (b1, b2, b3) is stored and managed as a file name for each layer to be distinguished from each other, it is preferable that the integrated storage as one planning information. Therefore, each of the three-dimensional virtual bone fragment images (b1, b2, b3) can be individually adjusted as a three-dimensional image included in each layer, can also be integrated as much as a selected layer can be adjusted integrally. At this time, when each image is adjusted, it is preferable to understand that the rotation angle, color, transparency, arrangement direction, etc. are manually or automatically changed.

That is, the plurality of three-dimensional virtual bone fragment images b1, b2, and b3 may be displayed on the display of the simulation device in a state in which they are spaced apart from each other or in a state of virtual alignment corresponding to the bone shape before fracture. And, the plurality of three-dimensional virtual bone fragment images (b1, b2, b3) at least one of the image may be adjusted to be displayed in a semi-transparent or projection processing to be hidden. Alternatively, a plurality of the three-dimensional bone fragment images (b1, b2, b3) may be processed to be displayed in different colors, respectively, and these colors may be displayed simultaneously in a table displaying each layer.

On the other hand, a plurality of the three-dimensional virtual bone fragment images (b1, b2, b3) are virtually matched based on the standard bone information (B) previously stored in the simulation device, so that the intramedullary canal information (c1, c2, c3) is It is preferable that they are virtually arranged so as to be continuously aligned.

In detail, the standard bone information (B) is preferably understood as a three-dimensional image of bones standardized by gender and age with respect to human bones. Alternatively, the standard bone information (B) may be provided as a symmetrically inverted 3D image of the same bone on the opposite side that is not fractured. Accordingly, each of the three-dimensional virtual bone fragment images (b1, b2, b3) and the standard bone information (B) are superimposed on each other, and each of the three-dimensional virtual fragment images (b1, b2, b3) can be virtually aligned. .

Alternatively, the longitudinal center of the bone marrow cavity information (c1, c2, c3) formed in each of the three-dimensional virtual bone fragment images (b1, b2, b3) is set, and each center is virtually aligned based on the same axis and continuously connected Each of the three-dimensional virtual bone fragment images b1, b2, b3 may be aligned. And, each of the three-dimensional virtual bone fragment images (b1, b2, b3) is to be virtually aligned by matching the corresponding parts of each fragmented end image of each of the three-dimensional virtual bone fragment images (b1, b2, b3) with each other can It can be determined whether the three-dimensional virtual bone fragment images b1, b2, and b3 virtually aligned in this way are virtually aligned to the state before fracture with reference to the standard bone information (B).

And, the virtual unit image (m10), which is design information of the bone implanting unit 10, corresponding to the restoration position preset in the plurality of three-dimensional virtual bone fragment images (b1, b2, b3) arranged in virtual alignment Virtually set to match.

In detail, the virtual unit image m10 includes a virtual core part m11 corresponding to the core part 11 included in the real bone implanting unit 10 and a fixed plate included in the real bone implanting unit 10 . It is preferable to be provided as a three-dimensional image including the virtual fixing plate m12 corresponding to (12). This virtual unit image m10 may be previously stored as a standardized 3D image according to the type of the fractured bone. For example, the virtual unit image m10 may be pre-stored corresponding to the standard shape and size of bones such as the humerus, radius, and ulna, and may be selected according to the fractured bone and loaded into the simulation device.

Here, the virtual core part (m11) is virtually arranged in correspondence with the intramedullary canal information (c1, c2, c3) inside the three-dimensional virtual bone fragment images (b1, b2, b3) arranged in virtual arrangement, the virtual The fixing plate m12 may be virtually disposed so that the external image thereof faces the external information of the epiphysis included in the three-dimensional virtual bone fragment images b1, b2, and b3.

In this case, it is preferable that the length and diameter of the virtual core part m11 are virtually corrected based on the overlapping interval between the bone marrow cavity information c1, c2, c3 and the virtual core part m11. And, the curvature (r1, r2) so that the virtual connection part (m13) integrally connecting the virtual fixed plate (m12) and the virtual core part (m11) passes through the metaphyseal end from the bone marrow and extends to the outer surface of the epiphyseal end. It is preferable to set

In detail, the virtual connection part m13 includes a first extension curvedly extending outwardly of the three-dimensional virtual bone fragment images b1, b2, and b3 from the end of the virtual core part m11, and the end of the first extension part From the virtual fixing plate (m12) may include a second extension extending to be curved to face the information on the outer surface of the epiphysis. At this time, the center of curvature r2 of the first extension portion and the center of curvature r1 of the second extension portion may be formed on opposite sides, and the virtual connection portion m13 will be formed in a waveform symbol shape ('~' shape). can

Through this, the virtual core unit (m11) may be arranged to extend virtual in the longitudinal direction along the bone marrow cavity information (c1, c2, c3), the virtual fixed plate (m12) is the epiphyseal end outer surface information and the minimum separation distance can be placed adjacent to That is, the virtual unit image (m10) precisely corresponds to the restoration position set in consideration of the bone marrow cavity information (c1, c2, c3) and external information of the three-dimensional virtual bone fragment image (b1, b2, b3). can be set.

Furthermore, the virtual connection part m13 is set at a position passing through the inside and outside of the metaphyseal end so that the inlet hole through which the core part 11 enters the bone marrow cavity is set at the metaphyseal end, through which the virtual connecting part ( The curvatures r1 and r2 of m13) can be precisely set.

Therefore, in order for the core part 11 of the bone implanting unit 10 to be finally manufactured to be introduced into the bone marrow cavity, the portion in which the inlet hole is actually formed in the bone is cancellous bone and growth plate directly related to bone growth. and may be formed spaced apart from each other. Through this, in particular, during the treatment of fractures in children and adolescents in the growth phase, the conventional problem of failure of bone growth due to damage to the growth plate can be fundamentally solved.

On the other hand, referring to Figure 5, at least one of the three-dimensional virtual bone fragment images (b1, b2, b3) of the plurality of bone fragment images (b1) is set to display the internal cross-section (s) corresponding to a preset cutting plane It is preferable to be

In detail, the cutting plane may be set to correspond to at least one of the X/Y/Z axes, and an internal cross-section (s) may be displayed based on the cutting plane set in the longitudinal direction as shown in the drawing. Through this, the arrangement relationship between the virtual unit image (m10) and the three-dimensional virtual bone fragment image (b1, b2, b3) can be more easily and intuitively determined. Here, the inner cross-section (s) may be displayed in a different color from the three-dimensional virtual bone fragment image (b1) in which the inner cross-section (s) is set. That is, each of the three-dimensional virtual bone fragment images (b1, b2, b3) and the internal cross-section (s) displayed therein, the virtual unit image (m10), etc. are displayed in different colors, so the management status such as image correction is displayed Design errors can be minimized and design precision can be remarkably improved as it can be checked intuitively on the screen.

In addition, the inner cross-section (s) may be continuously displayed as a slice surface according to the movement position of the cutting plane. At this time, it is preferable to understand that the continuous display means that the internal cross-section (s) at a position corresponding to the sequentially moved cutting plane is displayed like a continuous image frame according to the moving position.

Accordingly, the arrangement position between the virtual unit image m10 and the three-dimensional virtual bone fragment images b1, b2, and b3 can be easily confirmed by a simple method of moving the cutting plane. In addition, as described above, the angle, direction, transparency, color and brightness of the three-dimensional virtual bone fragment images (b1, b2, b3) as well as the virtual unit image (m10) may be individually adjusted. Therefore, it is possible to easily check the individual positional relationship and the overall positional relationship between each of the three-dimensional bone fragment images b1, b2, and b3 and the virtual unit image m10, so that design convenience can be significantly improved.

Moreover, this arrangement relationship may be numerically displayed on the display of the simulation device. That is, each of the three-dimensional virtual bone fragment images (b1, b2, b3) is arranged and spaced apart from each other, the virtual unit image (m10) and each of the three-dimensional virtual bone fragment images (b1, b2, b3) between the position and overlapping interval It can be displayed on this display, and through this, design convenience can be further improved.

In detail, in the simulation device, the planning information may be set and managed based on a simulation system. That is, it is preferable to understand that the simulation device is hardware for setting and managing planning information, and the simulation system is software.

In this case, the simulation system may include a file management unit, a 3D virtual image management unit and a chart management unit, and the 3D virtual image management unit may include a 3D virtual bone fragment image management unit and a virtual unit image management unit.

The file management unit performs a function of loading or closing the planning file connected to the simulation device through wired/wireless communication or stored in a data storage included in the simulation device. And, the three-dimensional virtual image management unit performs a function of setting and modifying the three-dimensional virtual bone fragment images (b1, b2, b3) and the virtual unit image (m10).

In detail, the three-dimensional virtual bone fragment image management unit may control to display or hide at least one of the three-dimensional virtual bone fragment images (b1, b2, b3), respectively. In addition, at least one of the three-dimensional virtual bone fragment images (b1, b2, b3) can be controlled to be moved or rotated on the basis of the X/Y/Z axis or displayed in correspondence to the front, back, left, right, and up and down planes. In addition, each of the three-dimensional virtual bone fragment images (b1, b2, b3) for at least one of the movement distance numerical value, the rotation angle numerical value, and whether to be displayed can be set. In addition, each of the three-dimensional virtual bone fragment images (b1, b2, b3) can be controlled to initialize or delete the settings for at least one of the images.

And, the virtual unit image management unit brightness, transparency, etc. of the virtual unit image (m10) with the function of controlling the image for at least one of the three-dimensional virtual bone fragment images (b1, b2, b3) described above are set can be controlled as much as possible.

In addition, an auxiliary display unit for setting and controlling the standard bone information (B) for reference during virtual alignment of the three-dimensional virtual bone fragment images (b1, b2, b3) may be further included. Through the auxiliary display unit, the standard bone information (B) may be displayed simultaneously with the three-dimensional virtual bone fragment images (b1, b2, b2) and the virtual unit image (m10) and controlled to be rotated along the same axis.

In addition, the chart management unit may control to store and modify the patient's name, date of birth, symptoms, and additional memos corresponding to the planning information.

At this time, it is preferable that the outline image (A) selectively highlighted so as to be distinguished from the three-dimensional virtual bone fragment images (b1, b2, b3) along the surface of the virtual unit image (m10) is set. Through this, since the three-dimensional virtual bone fragment image (b1, b2, b3) or the background color of the display and the virtual unit image (m10) are clearly distinguished, image manipulation convenience can be further improved.

On the other hand, it is preferable that the plurality of the three-dimensional virtual bone fragment images (b1, b2, b3) are integrated with the patient's treatment information and stored as one planning information.

In detail, the planning information includes a chart table in which the patient's treatment information is stored, a unit table in which setting information of the virtual unit image m10 is stored, and a plurality of the three-dimensional bone fragment images b1, b2, b3 stored as individual layers. It is desirable that the tables are integrated and stored. And, when one of the chart table, the unit table, and the entity table is selected, information corresponding thereto may be displayed on the display. Through this, the designer can easily set the three-dimensional bone fragment images (b1, b2, b3) or the virtual unit image (m10) by a simple method of selecting each table.

Furthermore, the planning information is stored in a preset server, and the design and manufacturing are performed on the manufacturer side and the operator who performs surgery using the manufactured bone implanting unit 10. can

That is, when the operator inputs or transmits the patient's information (eg, gender, age, disease name, treatment direction, CT image, etc.), the manufacturer loads it and then the three-dimensional virtual bone fragment images (b1, b2, b3) and the virtual unit image m10 may be set. In addition, the set three-dimensional virtual bone fragment images (b1, b2, b3) and the virtual unit image (m10) can be loaded from the operator's side and used as data to explain the treatment plan to the patient, and supplements during design are provided to the manufacturer can also be forwarded. Moreover, as this planning information is implemented to be confirmed on a mobile device as well as a PC, it is possible to check the overall checklist for surgery anywhere without time and space restrictions, so that fracture treatment efficiency can be further improved.

Meanwhile, referring to FIG. 6 , it is preferable that the temporary bone flagellum 5 corresponding to the type of fractured bone is 3D printed and manufactured. At this time, in the drawings, the temporary bone flagellum 5 is shown to correspond to the bone shape before fracture, that is, the standard bone information (B), but the temporary bone flagellum model is each of the three-dimensional virtual bone fragment images (b1, b2, b3). ) based on each of the three-dimensional printing, but may be provided in the form of mutually assembled.

In addition, it is preferable that the temporary unit 10A is manufactured by three-dimensional printing based on the virtual unit image m10. Here, it is preferable that the temporary unit 10A be understood as a model manufactured in real before the bone implanting unit 10 used for actual fracture treatment is manufactured.

In detail, the temporary bone fragment model 5 is manufactured by three-dimensional printing so that the external shape corresponds to the actual bone shape based on each of the three-dimensional virtual fragment images (b1, b2, b3) or the standard bone information (B). And, it is preferable that the temporary intramedullary cavity 5a corresponding to the intramedullary cavity information c1, c2, c3 is formed in a hollow shape. In addition, the temporary unit 10A includes a temporary core part 11a manufactured based on the virtual core part m11 and a temporary fixing plate 12a manufactured based on the virtual fixing plate m12 and the virtual connection part m13. ) is preferably formed integrally through the temporary connection portion (13a) manufactured on the basis of.

At this time, the temporary bone flagellum 5 is the length of the temporary bone marrow cavity 5a so that the insertion error of the temporary core part 11a inserted into the temporary bone marrow cavity formed inside the temporary skeletal flagellum 5 is determined. It is preferable to be prepared by dividing the species based on the direction center. In addition, the temporary skeletal model 5 may be manufactured to be selectively assembled while being separately manufactured in the longitudinal direction.

And, it is preferable that the temporary unit (10A) is corrected through preliminary assembly using the temporary bone model (5). Here, the preliminary assembly using the temporary skeletal flagellum 5 means that the temporary unit 10A corresponds to the actual restoration position in the temporary skeletal flagellum 5 manufactured in place of the fractured bone before the actual operation. It is preferable to understand that it is fixed.

In detail, in the temporary unit 10A, the temporary core part 11a is disposed in the temporary bone marrow cavity 5a and the temporary connection part 13a is formed in the temporary bone flagellum 5. The temporary inlet hole 5b It is disposed in the temporary fixing plate (12a) is arranged to face the outer surface of the diaphysis of the temporary bone model (5). At this time, interference between the temporary unit 10A and the temporary skeletal model 5 is determined, and the length and diameter of the temporary unit 10A can be corrected.

Through this, errors not confirmed in the design through the simulation device can be checked and corrected before surgery through the temporary skeletal model 5 and the temporary unit 10A. Therefore, it is possible to prevent in advance the problem of delayed surgery or poor treatment prognosis due to an error of the final bone implanting unit 10 during surgery. In addition, as the precision of the finally manufactured bone implanting unit 10 is maximized, surgery and treatment period may be shortened, and additional procedures such as reoperation may not occur, thereby reducing the psychological and economic burden of the patient.

On the other hand, based on the corrected temporary unit (10A), the core part 11 inserted into the bone marrow cavity of the fractured bone and formed integrally with one end of the core part 11, wrapped around the outer surface of the epiphyseal end and fixed It is preferable that the bone implanting unit 10 including the fixing plate 12 is finally manufactured.

In detail, the core part 11 extends in a bar shape to be inserted into the bone marrow cavity formed inside the fractured bone, and a plurality of three-dimensional virtual bone fragment images are generated based on image information on the fractured bone. The length and diameter are set through the intramedullary canal information (c1, c2, c3) arranged and displayed inside each of (b1, b2, b3).

In addition, the fixing plate 12 is formed in a rounded curved plate shape to face the outer surface of the epiphyseal end formed at one end of the fractured bone, and is fixed to the epiphyseal end through a fixing screw. At this time, the fixing plate 12 has one end connected to the core 11, and the connecting portion extending in multiple stages to pass through the inlet hole that passes through the metaphyseal end from the bone marrow cavity to the outer surface of the epiphyseal end ( 13) is formed. That is, the fixing plate 12 and the core part 11 are integrally formed through the connection part 13 .

The bone implanting unit 10 is preferably made of a titanium alloy. Therefore, while having the strength to support the fractured bone in its original shape, safety can be remarkably improved through human-friendly material properties.

That is, the present invention is provided in a form in which a fracture fusion plate used for general fracture treatment and an intramedullary metal tablet used for the treatment of intercostal fractures of long bones are integrally fused. Therefore, it can be simultaneously applied to multiple complex and interosseous fractures, and since the screw-fixed part to the bone is minimized, the wound at the surgical site is minimized, the treatment period is significantly shortened, and the external scars are reduced, and the satisfaction of the patient can be improved.

In particular, the inlet hole through which the connection part 13 is penetrated is set to be formed at the metaphyseal end portion, and the bone implanting unit 10 is bent in multiple stages to substantially correspond to the bone marrow cavity and the outer surface of the epiphyseal end formed inside the bone. is manufactured with Through this, the bone implanting unit 10 can stably support the reduction of each bone fragment in a state of being fixed to the bone even with a minimum of fixing screws, and the core part 11, the connection part 13 and the When the fixing plate 12 is set to substantially conform to the bone marrow cavity and the outer surface of the interosseous shaft, it may be fixed to support the fractured bone without a fixing screw. Through this, since damage to the growth plate is minimized, it is possible to prevent problems such as growth stop due to incorrect surgery or incorrect growth of the left and right body lengths, so that the prognosis for fracture treatment in children and adolescents can be significantly improved.

Moreover, the three-dimensional virtual bone fragment image (b1, b2, b3) in which the length, diameter, and curvature (r1, r2) of the virtual unit image (m10) are generated based on image information obtained by CT imaging of the patient's body ) is set appropriately for each patient based on In addition, by manufacturing the temporary unit 10A before manufacturing the final product based on the virtual unit image m10 set in this way and pre-assembling it with the temporary bone fragment model, it is possible to additionally check the fit for the patient, and the actual operation and Surgical planning and surgical rehearsals can take place in a similar environment. Through this, it is possible to receive a highly precise reduction device even for the treatment of patients with multiple complex and interosseous fractures simultaneously by compensating for errors that may occur in design and reflecting them in the actual manufacturing of the final product.

On the other hand, terms such as "comprises", "comprises", "provide" or "have" described above mean that the corresponding component may be inherent, unless otherwise stated. It should be construed as not excluding components, but may further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and variations can be implemented by those of ordinary skill in the art to which the present invention pertains without departing from the scope of the claims of the present invention. and such modifications are within the scope of the present invention.

b1,b2,b3: 3D virtual bone fragment image m10: Virtual unit image
5: Temporary skeletal model 10A: Temporary unit
10: bone implanting unit 11: core part
12: fixing plate 13: connection part

Claims (5)

Image information on the fractured bone is acquired and loaded into a simulation device, and based on the image information, a plurality of three-dimensional virtual bone fragment images including information about the external appearance and internal bone marrow cavity of each fragment of the fractured bone are virtual a first step to be generated;
A plurality of the three-dimensional virtual bone fragment images are virtually arranged based on standard bone information stored in the simulation device, so that the intramedullary canal information is continuously aligned, and a plurality of the three-dimensional virtual bone fragment images virtually aligned a second step of setting a virtual unit image that is design information of a bone implanting unit to match a virtual unit image corresponding to a predetermined restoration position;
A temporary skeletal model corresponding to the fractured bone type is 3D printed and manufactured, and a temporary unit is 3D printed based on the virtual unit image, and the temporary unit is corrected through preliminary assembly using the temporary skeletal model. the third step of becoming; and
The bone implanting unit comprising a core part inserted into the bone marrow cavity of the fractured bone based on the corrected temporary unit and a fixing plate integrally formed with one end of the core part and fixed to cover the outer surface of the epiphyseal end is finally manufactured A method of manufacturing a bone implanting unit comprising a fourth step of being. The method of claim 1,
The second step includes a step of operating and setting to display the internal cross-section of at least one bone fragment image among a plurality of the three-dimensional virtual fragment image in response to a preset cutting plane,
In the third step, the provisional flagellum is longitudinally based on the longitudinal center of the temporary bone marrow so that the insertion error of the temporary core formed in the temporary unit to be inserted into the temporary bone marrow cavity formed inside the temporary flagellum is determined. A method of manufacturing a bone implanting unit, characterized in that it is divided and manufactured. The method of claim 1,
The second step is
selecting the virtual unit image according to the type of the fractured bone;
The virtual core part included in the virtual unit image is aligned and superimposed on the bone marrow cavity information displayed inside the three-dimensional virtual bone fragment image, and the inner surface of the virtual fixed plate integrally connected to one side of the virtual core part is the three-dimensional virtual bone fragment image. A step of virtual arrangement to face the external information of the epiphysis included in the
The length and diameter of the virtual core part are virtual corrected based on the overlapping interval of the intramedullary cavity information and the virtual core part, and a virtual connection part connecting the virtual fixed plate and the virtual core part passes through the metaphyseal end from the bone marrow cavity to the epiphyseal end. Method of manufacturing a bone implanting unit, characterized in that it comprises the step of setting the curvature so as to extend to the bend. 4. The method of claim 3,
In the second step, the plurality of three-dimensional virtual bone fragment images are integrated with the patient's treatment information and stored as one planning information,
Each of the three-dimensional virtual bone fragment images is stored as an independent layer, the bone marrow cavity information of each of the three-dimensional virtual fragment images is virtually aligned with respect to the same axis, and the angle and direction of each of the three-dimensional virtual bone fragment image and the virtual unit image , opacity, color and brightness are set to be individually adjusted,
A method of manufacturing a bone implanting unit, characterized in that an outline image selectively highlighted to be distinguished from the three-dimensional virtual bone fragment image is set along the surface of the virtual unit image. Inserted into the bone marrow cavity formed inside the fractured bone, the length and diameter are set through the bone marrow cavity information that is aligned and displayed inside each of a plurality of three-dimensional virtual bone fragment images generated based on the image information on the fractured bone a core part; and
It is formed in a rounded curved plate shape to face the outer surface of the epiphyseal end formed at one end of the fractured bone, and is fixed to the epiphyseal end through a fixing screw. Bone implanting unit including a fixing plate integrally provided at one end of the core portion through the connecting portion extending to be bent in multiple stages to pass through the inlet through the outer surface of the bone implanting unit.

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