KR20190063077A - Bone joint plate with bushing able to adjust angle - Google Patents

Bone joint plate with bushing able to adjust angle Download PDF

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Publication number
KR20190063077A
KR20190063077A KR1020170161887A KR20170161887A KR20190063077A KR 20190063077 A KR20190063077 A KR 20190063077A KR 1020170161887 A KR1020170161887 A KR 1020170161887A KR 20170161887 A KR20170161887 A KR 20170161887A KR 20190063077 A KR20190063077 A KR 20190063077A
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KR
South Korea
Prior art keywords
plate
angle
bushing
screw
formed
Prior art date
Application number
KR1020170161887A
Other languages
Korean (ko)
Inventor
권오성
이민호
Original Assignee
에이블 주식회사
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Publication date
Application filed by 에이블 주식회사 filed Critical 에이블 주식회사
Priority to KR1020170161887A priority Critical patent/KR20190063077A/en
Publication of KR20190063077A publication Critical patent/KR20190063077A/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Threaded wires, pins or screws; Nuts therefor

Abstract

The present invention provides a bone grafting plate for surgery including an angle adjusting bushing formed so as to be capable of placing a screw corresponding to a fracture angle and an angle adjusting bushing having a protrusion capable of adjusting an azimuth angle of the bushing for angle adjustment during bone graft surgery .
The bone bonding plate according to the present invention comprises: a plate body having a plurality of plate holes; An angle adjusting bushing inserted into the plate hole and fixed by an angle fixing key formed at a predetermined position on the inner wall of the plate hole by a Kiem coupling; And a screw formed on the inner wall of the bushing for angle adjustment and a thread formed on the screw head and fixed by rotational coupling.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bone joining plate having an angle adjusting bushing,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bone grafting plate for surgical use, and more particularly, to a bone grafting plate for surgical bone grafting, which comprises a bushing for angle adjustment and a projection for bracing, Plate.

Generally, in osseointegration surgery for joining a fractured region, a surgical method of inserting a proper bone-joining plate according to the type and size of a fracture after the fracture is incised, and fixing the bone and the bone-joining plate with a screw is widely applied .

Meanwhile, in order to fix the bone fusion plate and the bone during surgery, the operator inserts a screw into the hole formed in the bone fusion plate and fixes the bone to the bone. In this process, the bone surface and the bone fusion plate are over- If a problem occurs, the blood flow of the microvessels on the surface of the bone is disturbed, which causes the problem of necrosis of the bones, thus providing the cause of the operation failure.

In order to solve such a problem and at the same time to secure a firm fixing force between the bone joining plate and the screw, the bone joining plate which is currently used has a hole in the tapping process and the screw head can also be tap- And the bone joint plate are spaced apart from each other by a pitch difference between the bones and the bone joint plate and are maintained for a treatment period.

However, since the commercially available techniques are generally tapped in a direction orthogonal to the surface of the bone joining plate, when the screws are fastened to the bone joining plate, they can be fixed only in a direction perpendicular to the bone, And the direction of fixation is limited.

In addition, even in the case of some products which can be adjusted in angle, since the tabs are forcibly locked to each other in order to adjust the angle of the bone joining plate and the screw, stable and strong fixation can not be secured at a predetermined angle to be performed, The holes of the screw may be excessively enlarged or the screw may be inserted in a direction different from the target direction.

Therefore, as a technique to overcome the above problem, there is a demand for the development of a new type of bone bonding plate having a stable and strong bonding force at an angle required according to the fracture mode and the procedure.

A bone joining device having a plate and a pin is disclosed in Japanese Patent Application Laid-open No. 10-2014-0037090. Flexible hinge fixation system based on the Japanese patent specification 2017-503545 plate

The present invention provides a surgical bone joining plate including an angle adjusting bushing formed for fitting a screw corresponding to a fracture angle and an angle adjusting bushing having a protrusion capable of adjusting an azimuth angle of the bushing for angle adjustment during bone joining surgery There is a purpose.

The bone bonding plate according to the present invention comprises: a plate body having a plurality of plate holes; An angle adjusting bushing inserted into the plate hole and fixed by an angle fixing key formed at a predetermined position on the inner wall of the plate hole by a Kiem coupling; And a screw formed on the inner wall of the bushing for angle adjustment and a thread formed on the screw head and fixed by rotational coupling.

The plate body may include a plate frame facing the fracture portion; A plurality of plate holes formed in the plate frame to insert the angle adjusting bushing; An annular stopper protruding in the center of the plate hole along an inner circumferential surface at the center of the inner circumferential surface of the plate hole; At least one angle fixing key protruding from a predetermined position of the plate hole inner wall in the plate hole center direction; And a connection portion connecting adjacent plate holes among the plurality of plate holes.

In addition, the stopper has a trapezoidal shape in which the thickness decreases from the inner circumferential surface of the plate frame toward the central portion.

Further, the stopper may have a circular shape or at least two arc-shaped shapes.

Further, the connecting portion has the smallest cross-sectional area of the plate body, and can be deformed in at least one of the up-and-down direction, the left-right direction, and the twist direction without deformation of the plate hole when an external force is applied.

The angle adjusting bushing may include a tab portion that is processed to rotate the screw head on an inner surface thereof; A bushing restricting portion formed to be received in the plate hole along the outer peripheral surface of the lower end portion; An angle regulating protrusion protruding radially from the bush restricting portion and having a plurality of recesses formed at predetermined intervals along the outer peripheral surface of the upper end portion; And a bushing buffer portion that is cut to give an elastic force in binding with the screw.

In addition, the plate body, the angle adjusting bushing, and the screw are made of medical metal.

According to the bone grafting plate for surgical use including the bushing for angle adjustment of the present invention, the inside of the angle adjusting bushing is tapped so as to be fixed at an angle of 0 to 20 degrees with respect to the vertical direction passing through the bone An angle adjusting protrusion is formed on the outer circumferential surface of the angle adjusting bushing at a predetermined interval to adjust the angle with respect to the bone in the horizontal rotation direction.

In other words, by using the surgical bone joining plate including the angle-adjusting bushing of the present invention, it is possible to insert and fix the screw at various angles required in the surgery, so that the optimal treatment method suitable for the fracture shape can be applied , Minimizing the parameters of the procedure, thus enabling a stable and successful procedure.

Further, the use of the surgical bone joining plate including the angular adjustment bushing of the present invention prevents the insertion of the target direction and the screw in different directions, and ensures secure fixation at an accurate angle, And the success rate of surgery can be increased.

In addition, the use of the surgical bone joining plate including the angle-adjusting bushing of the present invention can reduce the number of products required for various bone joining operations, thereby making it economical to provide various products having functions for each use. It is possible to insert and fix the screw at various angles under various conditions required for the operation of the plate body, thereby increasing the utilization of the bone joining plate.

1 is a perspective view showing a bone joining plate main body according to an embodiment of the present invention.
FIG. 2 is a perspective view and a cross-sectional view illustrating the combination of the bone-bonding plate body and the angle-adjusting bushing according to an embodiment of the present invention.
FIG. 3 is a perspective view showing a combination of a bone-joining plate, a bushing for angle adjustment, and a screw according to an embodiment of the present invention.
4 is a perspective view illustrating a 360 ° rotation in the horizontal direction and a 10 ° vertical direction fixing using the angle adjusting bushing according to the embodiment of the present invention.
5 is a schematic view showing a twist deformation and a vertical / horizontal deformation of the bone fusion plate according to an embodiment of the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, Software. ≪ / RTI >

In the following description with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and a duplicate description thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

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

2 is a perspective view and a cross-sectional view illustrating a combination of a bone-joining plate body and an angle-adjusting bushing according to an embodiment of the present invention, and FIG. FIG. 3 is a perspective view showing a combination of a bone-joining plate, a bushing for angle adjustment, and a screw according to an embodiment of the present invention, FIG. 4 is a perspective view FIG. 5 is a schematic view showing a twist deformation and a vertical / horizontal deformation of the bone fusion plate according to an embodiment of the present invention.

1 to 5, the bone bonding plate according to the present invention is roughly divided into a plate body 100 and a bushing 200 for angle adjustment.

The plate body 100 includes a plate frame 110 facing the fracture portion, a plate hole 120 formed to insert the bushing 200 for angle adjustment into the plate frame 110, An annular stopper 130 protruding in the direction of the center of the plate hole along the inner circumferential surface of the lower portion of the plate hole 120, At least one angle fixing key 140 protruding from the plate hole 120, and a connection part 150 connecting between the plate holes 120. Here, the plate hole 120 is to be understood not to be a perforated space in the plate body 100 but to an area where the angle-regulating bushing 200 is accommodated.

According to an embodiment of the present invention, the plate hole 120 has a shape in which eight holes are continuously connected. However, the present invention is not limited thereto, and 4 to 30 holes may be formed.

The bushing restricting protrusion 130 has an annular protrusion structure protruding a predetermined length toward the center of the plate hole 110 along the inner circumferential surface of the plate frame 110 so that the angle regulating bushing 200 is bound to the plate frame 110. The stopper 130 may have a trapezoidal shape whose thickness decreases from the inner circumferential surface of the plate frame 110 to the central portion thereof. Also, according to one embodiment of the present invention, the stopper 130 of the annular projection structure may have one circular shape or at least two arc-shaped shapes.

The angle fixing key 140 protrudes toward the center portion at a predetermined position on the inner circumferential surface of the plate frame 110 with a predetermined width.

The connecting portion 150 is designed to have the smallest cross-sectional area of the plate body 100 while maintaining a predetermined strength. Here, the cross-sectional area means the cross-sectional area (A) when viewed from the longitudinal direction of the plate. 5, when a force is applied to the plate body 100 in the up-and-down direction, the left-right direction, or the torsion direction, the deformation of the connection portion 150 is performed without deforming the plate hole 120, 100 can be adjusted.

The bushing 200 for adjusting the angle includes a tab portion 210 processed to fix the screw head 310 on the inner side thereof, a bushing restricting portion 220 formed to be accommodated in the plate hole 120 along the outer peripheral surface of the lower end portion, An angle regulating protrusion 230 protruding radially from the bushing restricting portion 220 and having a plurality of grooves formed at predetermined intervals along the outer circumferential surface of the upper end portion of the bushing restricting portion 220, (240).

When the angle adjusting bushing 200 is inserted into the plate hole 120, the angle fixing key 140 may be inserted into the groove formed in the outer circumferential surface of the angle adjusting protrusion 230 to maintain a fixed angle. For example, the angle regulating protrusion 230 may have 36 grooves to fix the angle regulating bushing 200 at intervals of 10 degrees.

The tab portion 210 is tapped on the inner side of the bushing portion 200 for angle adjustment so that the screw head 310 can be fixed at an angle of 0 ° to 20 ° with respect to the vertical direction passing through the plate hole 120, .

The bushing restricting portion 220 is formed in a shape having a depressed groove so that the angle adjusting bushing 200 is stably fixed to the plate hole 120 and is not separated by an external force.

The angle regulating protrusion 230 has 36 grooves formed at intervals of 10 DEG from 0 DEG to 360 DEG on the outer surface of the upper portion of the angle controlling bushing 200 so as to be adjustable in the direction of horizontal rotation with the bone.

The bushing cushion 240 is formed in such a shape that the angle-adjusting bushing 200 is cut so as to form an arc rather than a circle, and is capable of imparting an elastic force when expanded to the outside.

According to one embodiment of the present invention, the plate body 100 and the bushing 200 for angle adjustment are made of medical material such as stainless steel or titanium, and the screw 300 is made of medical material such as titanium.

According to an embodiment of the present invention, when the screw 300 is inserted into the plate 100 and the bone, the angle-adjusting bushing 200 is inserted into the plate hole 120 at an angle at which the screw 300 is expected to be inserted , It is possible to arrange the screw 300 at an accurate position and angle by appropriately disposing the plate body 100 on the fractured bone and placing the screw 300 in the inserted angle-adjustable bushing 200. [

That is, since it is possible to insert and fix the screw 300 at various angles under various conditions required for the surgery, it is possible to apply the optimal operation method according to the fracture type, The procedure is possible.

As a result, it is possible to prevent the screw 300 from being inserted in a direction different from the target direction, and at the same time to ensure secure fixation at an accurate angle, thereby reducing the risk of operation failure and increasing the success rate of operation.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: plate body
110: plate frame
120: Plate hole
130: Stopper
140: Fixed angle key
150:
200: Angle adjusting bushing
210:
220: plate restraining part
230: Angle adjustment projection
240: Bushing buffer
300: Screw
310: screw head

Claims (7)

  1. A plate body having a plurality of plate holes;
    An angle adjusting bushing inserted into the plate hole and fixed by an angle fixing key formed at a predetermined position on the inner wall of the plate hole by a Kiem coupling; And
    A screw formed on the inner wall of the bushing for angle adjustment and a screw formed on the screw head,
    . ≪ / RTI >
  2. [2] The apparatus according to claim 1,
    A plate frame facing the fracture portion;
    A plurality of plate holes formed in the plate frame to insert the angle adjusting bushing;
    An annular stopper protruding in the center of the plate hole along an inner circumferential surface at the center of the inner circumferential surface of the plate hole;
    At least one angle fixing key protruding from a predetermined position of the plate hole inner wall in the plate hole center direction; And
    And a plurality of plate holes,
    . ≪ / RTI >
  3. 3. The method of claim 2,
    Wherein the stopper has a trapezoidal shape in which the thickness decreases from the inner circumferential surface of the plate frame toward the center thereof.
  4. The method of claim 3,
    Wherein the stopper has a circular shape or at least two arc-shaped shapes.
  5. 3. The method of claim 2,
    Wherein the connecting portion has the smallest cross sectional area of the plate body and is deformable in at least one of a vertical direction, a lateral direction, and a twist direction without deforming the plate hole when an external force is applied.
  6. The bushing according to claim 2, wherein the angle-
    A tab portion that is processed so that the screw head is rotatably coupled to the inner surface;
    A bushing restricting portion formed to be received in the plate hole along the outer peripheral surface of the lower end portion;
    An angle regulating protrusion protruding radially from the bush restricting portion and having a plurality of recesses formed at predetermined intervals along the outer peripheral surface of the upper end portion; And
    A bushing cushioning portion that is cut so as to impart an elastic force to the screw,
    . ≪ / RTI >
  7. The method according to claim 6,
    Wherein the plate body, the angle adjusting bushing, and the screw are made of a medical metal material.
KR1020170161887A 2017-11-29 2017-11-29 Bone joint plate with bushing able to adjust angle KR20190063077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170161887A KR20190063077A (en) 2017-11-29 2017-11-29 Bone joint plate with bushing able to adjust angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170161887A KR20190063077A (en) 2017-11-29 2017-11-29 Bone joint plate with bushing able to adjust angle

Publications (1)

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KR20190063077A true KR20190063077A (en) 2019-06-07

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KR1020170161887A KR20190063077A (en) 2017-11-29 2017-11-29 Bone joint plate with bushing able to adjust angle

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140037090A (en) 2011-06-06 2014-03-26 알렉산드르 보르쎌 Osteosynthesis device with plate and pins
JP2017503545A (en) 2013-12-09 2017-02-02 アキュームド・エルエルシー Flexible hip joint fixation system based on plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140037090A (en) 2011-06-06 2014-03-26 알렉산드르 보르쎌 Osteosynthesis device with plate and pins
JP2017503545A (en) 2013-12-09 2017-02-02 アキュームド・エルエルシー Flexible hip joint fixation system based on plate

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