KR20000012195A - Apparatus for fixing rachis - Google Patents
Apparatus for fixing rachis Download PDFInfo
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- KR20000012195A KR20000012195A KR1019990025051A KR19990025051A KR20000012195A KR 20000012195 A KR20000012195 A KR 20000012195A KR 1019990025051 A KR1019990025051 A KR 1019990025051A KR 19990025051 A KR19990025051 A KR 19990025051A KR 20000012195 A KR20000012195 A KR 20000012195A
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- rod
- extension
- connection
- connecting member
- screw
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/685—Elements to be fitted on the end of screws or wires, e.g. protective caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical 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
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
Description
본 발명은 척추내 고정장치에 관한 것으로, 좀더 상세하게는 척추의 골절 및 질병으로 인한 불안정한 척추를 적절히 고정할 수 있으며, 폭 조절이 간편하고 구조가 단순한 척추내 고정장치에 관한 것이다.The present invention relates to an intravertebral fixation device, and more particularly, to an intravertebral fixation device capable of properly fixing an unstable spine due to fracture and disease of the spine, and having a simple width control and a simple structure.
일반적으로 척추가 골절되거나 질병이 발생되면 척추를 고정시켜 주게 되는데, 이러한 척추를 적절한 관계로 고정하기 위한 장치로는 예컨대, 나사못을 이용하는 일체로 고정하는 방식이 널리 사용되고 있다.In general, when the spine is broken or a disease occurs, the spine is fixed. As a device for fixing the spine in an appropriate relationship, a method of integrally fixing a screw using a screw is widely used.
상기한 나사못을 이용하여 일체로 고정하는 방식은 척추에 일정한 간격으로 나사못이 결합되고, 상기한 나사못은 척추의 길이방향으로 배치되는 로드와 누름판에 의하여 눌러지면서 결합되고, 상기한 로드와 로드는 연결부에 의하여 서로 일체로 연결된다.The method of fixing integrally using the screw is a screw is coupled to the spine at regular intervals, the screw is coupled while being pressed by a rod and a pressing plate arranged in the longitudinal direction of the spine, the rod and the rod is connected It is connected to each other integrally by.
상기한 나사못은 척추에 결합되는 나사부와, 로드가 결합되는 헤드부와, 상기 헤드부와 나사부 사이에 형성된 네크부로 이루어진다.The screw comprises a screw portion coupled to the spine, a head portion to which the rod is coupled, and a neck portion formed between the head portion and the screw portion.
그러나 종래에는 척추에 결합되는 나사못이 로드와 일체로 고정 결합되고, 상기 로드와 로드는 연결부에 의하여 일체로 연결되게 되며, 또한 상기 로드를 나사못 방향으로 눌러주기 위한 누름판에 연결부와 별도로 이루어져 있으므로 연결부의 상하좌우 방향으로의 조정이 불가능하여 척추를 적절한 관계로 고정시켜주지 못하게 되는 문제점이 있었다.However, in the related art, the screw coupled to the spine is fixedly coupled to the rod integrally, and the rod and the rod are integrally connected by the connecting portion, and the connection part is formed separately from the connecting portion on the pressing plate for pressing the rod in the screw direction. There was a problem that can not be adjusted in the vertical, vertical, left and right directions to fix the spine in an appropriate relationship.
또한, 상기 연결부는 로드와 로드 사이의 거리에 따라 결정된 길이로 이루어지므로 로드 사이의 거리가 변경되어도 연결부의 길이를 조절할 수 없게 되는 문제점도 있었다.In addition, since the connecting portion is formed of a length determined according to the distance between the rod and the rod, there is a problem in that the length of the connecting portion cannot be adjusted even if the distance between the rods is changed.
따라서 본 발명은 상기 문제점을 해결하기 위하여 제안된 것으로서, 본 발명의 목적은 골절 및 질병으로 인한 불안정한 척추를 적절하게 고정시키면서도 폭 조절이 쉽고 구조가 단순한 척추내 고정장치를 제공하는 데 있다.Therefore, the present invention has been proposed to solve the above problems, and an object of the present invention is to provide an intravertebral fixation device having an easy width control and simple structure while properly fixing an unstable spine due to fracture and disease.
상기의 목적을 달성하기 위하여 본 발명은 척추에 일정한 간격으로 고정 결합되는 척추경나사부재와, 상기 척추경나사부재에 분리 가능하게 결합되고, 상기 척추경나사부재들을 서로 연결하면서 지지하기 위한 제 1 및 제 2로드와, 상기 척추경나사부재에 분리 가능하게 결합되고, 상기 제 1 및 제 2로드를 상기 척추경나사부재 쪽으로 각각 눌러주기 위한 누름부재와, 일측은 상기 제 1로드에 결합되고, 타측에는 연장부가 형성된 제 1연결부재와, 일측은 상기 제 2로드에 결합되고, 타측에는 상부 연장부와 하부 연장부가 형성되어, 상기 상부 연장부와 상기 하부 연장부 사이에 상기 제 1연결부재의 연장부가 삽입되도록 연결되며, 서로 연결폭이 조절 가능한 제 2연결부재를 포함하는 척추내 고정장치를 제공한다.In order to achieve the above object, the present invention provides a pedicle screw member that is fixedly coupled to the spine at regular intervals, and is detachably coupled to the pedicle screw member and supports the pedicle screw members while supporting each other. And a second rod and a pressing member detachably coupled to the pedicle screw member, each pressing member for pressing the first rod and the second rod toward the pedicle screw member, and one side of the rod is connected to the first rod. A first connection member having an extension portion formed on the other side thereof, one side of which is coupled to the second rod, and an upper extension portion and a lower extension portion formed on the other side thereof, and between the upper extension portion and the lower extension portion of the first connection member; Provided is an intravertebral fixation device including a second connection member connected to each other so that the extension part is inserted and the connection width of each other is adjustable.
또한, 상기 제 1 및 제 2연결부재는 조임나사를 구비하여, 상기 제 1연결부재의 상기 연장부에는 길이 방향으로 개구부가 형성되고 상기 제 2연결부재의 상기 상하부 연장부에는 소정의 크기를 가지는 관통구가 형성되어, 상기 조임나사는 상기 제 1연결부재의 개구부와 상기 제 2연결부재의 관통구를 통해서 상기 제 1 및 제 2연결부재의 연장부와 서로 결합되고, 상기 제 1연결부재의 개구부 내에서 이동 가능게 구성될 수 있다.In addition, the first and second connection members are provided with a fastening screw, the opening portion is formed in the longitudinal direction of the extension portion of the first connection member and has a predetermined size in the upper and lower extension portions of the second connection member. Through holes are formed, the tightening screw is coupled to each other and the extension of the first and second connecting member through the opening of the first connecting member and the through hole of the second connecting member, It can be configured to be movable within the opening.
또한, 상기 조임나사는 상기 제 2연결부재의 상기 상부 연장부의 관통구와는 나사결합을 하지 않고 상기 하부 연장부의 관통구와는 나사결합을 할 수 있다.In addition, the tightening screw may be screwed with the through hole of the lower extension without screwing the through hole of the upper extension of the second connecting member.
또한, 상기 제 1 및 제 2연결부재는 상기 로드와 결합되는 부위에 상기 로드를 눌러 고정시키기 위한 고정나사부를 포함하며, 상기 고정나사부는 상기 로드를 향해 일정 각도만큼 기울어질 수 있다.In addition, the first and the second connection member includes a fixing screw for fixing the rod by pressing the portion coupled to the rod, the fixing screw may be inclined by a predetermined angle toward the rod.
또한, 상기 고정나사부는 상기 로드와 접촉하는 단부가 곡면으로 형성되며, 상기 로드를 향하여 대략 5°정도 기울어는 것이 바람직하다.In addition, the end of the fixing screw is in contact with the rod is formed in a curved surface, it is preferable to incline about 5 ° toward the rod.
도 1은 본 발명에 따른 척추내 고정장치가 적용된 상태를 도시하는 정면도.1 is a front view showing a state in which the intravertebral fixation device according to the present invention is applied.
도 2는 도 1의 척추내 고정장치를 도시하는 사시도.Figure 2 is a perspective view of the intravertebral fixation device of Figure 1;
도 3은 본 발명에 따른 척추내 고정장치의 연결부를 도시하는 정면도.Figure 3 is a front view showing the connection of the intravertebral fixation device according to the present invention.
도 4는 본 발명의 연결부의 연결폭이 확장된 상태를 도시하는 정면도.Figure 4 is a front view showing a state in which the connection width of the connecting portion of the present invention is expanded.
도 5는 본 발명의 제 1연결부재를 도시하는 평면도.5 is a plan view showing a first connecting member of the present invention.
도 6은 본 발명의 제 2연결부재를 도시하는 평면도.Figure 6 is a plan view showing a second connecting member of the present invention.
도 7은 본 발명의 제 2연결부재를 도시하는 정면도.7 is a front view showing a second connecting member of the present invention.
<도면 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1: 척추 5: 로드1: spine 5: rod
33: 누름부재 100: 연결부33: pressing member 100: connecting portion
110: 제 1연결부재 112: 고정나사부110: first connecting member 112: fixing screw portion
116: 연장부 118: 개구부116: extension 118: opening
120: 제 2연결부재 122: 고정나사부120: second connecting member 122: fixing screw portion
126: 상부 연장부 128: 하부 연장부126: upper extension 128: lower extension
130, 132: 조임나사130, 132: Tightening screw
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
도 1은 본 발명에 따른 척추내 고정장치가 적용된 상태를 도시하는 정면도이고 도 2는 상기 척추내 고정장치를 도시하는 사시도이다. 일반적으로 골절이나 질병 등의 사유로 인해 척추(1)가 불안정하게 되면 척추(1)를 안정한 상태로 고정하기 위한 고정장치가 사용된다. 도면을 참고하면, 각 척추(1)의 일정 부위에 소정 간격으로 척추경나사부재(3)를 결합시킨다. 척추경나사부재(3)는 척추(1)를 따라서 2열로 연속적으로 형성된다. 각 척추(1)에 고정된 척추경나사부재(3)는 한 쌍의 로드(5)에 의해 분리 가능하게 연결되는데, 로드(5)는 척추경나사부재(3)를 통해 척추(1)를 길이 방향으로 지지하게 된다. 척추경나사부재(3) 위에는 누름부재(33)가 분리 가능하게 설치되어 로드(5)를 척추경나사부재(3) 쪽으로 눌러주는 역할을 한다. 척추(1)를 따라서 나란히 설치된 로드(5)는 또한 연결부(100)에 의해서 연결폭이 조절 가능하도록 서로 연결된다.1 is a front view showing a state in which the intravertebral fixation device is applied according to the present invention and FIG. 2 is a perspective view showing the intravertebral fixation device. In general, when the spine 1 becomes unstable due to fracture or disease, a fixing device is used to fix the spine 1 in a stable state. Referring to the drawings, the pedicle screw member 3 is coupled to a predetermined portion of each spine 1 at predetermined intervals. The pedicle screw member 3 is continuously formed in two rows along the vertebrae 1. The pedicle screw member 3 fixed to each vertebra 1 is detachably connected by a pair of rods 5, the rods 5 connecting the vertebrae 1 through the pedicle screw members 3. Support in the longitudinal direction. The pressing member 33 is detachably installed on the pedicle screw member 3 to serve to press the rod 5 toward the pedicle screw member 3. The rods 5 installed side by side along the vertebrae 1 are also connected to each other so that the connecting width is adjustable by the connecting portion 100.
도 3 내지 도 7은 본 발명에 따른 척추내 고정장치의 연결부(100)를 도시한다. 도면을 참조하면, 연결부(100)는 대략 제 1연결부재(110)와 제 2연결부재(120)로 구성된다. 제 1연결부재(110)의 일측은 내측으로 구부러지면서 로드(5)를 일부 감싸도록 형성되며, 타측은 다른 로드를 향하여 연장된다. 이 때, 제 1연결부재(110)의 일측은 로드(5)를 분리되지 않을 정도로 충분히 감싸는 것이 좋은데, 대략 180도 정도 감싸는 것이 바람직하다.3 to 7 show the connection part 100 of the intravertebral fixation device according to the invention. Referring to the drawings, the connecting portion 100 is composed of approximately the first connecting member 110 and the second connecting member 120. One side of the first connection member 110 is formed to partially wrap the rod 5 while being bent inward, and the other side extends toward the other rod. At this time, one side of the first connection member 110 is preferably wrapped enough to not separate the rod 5, it is preferable to wrap about 180 degrees.
또한, 제 1연결부재(110)는 로드(5)의 중심선보다 약간 내측 지점에 로드(5)를 눌러 고정시키기 위한 고정나사부(112)와, 고정나사부(112)가 삽입되어 나사결합 하기 위한 관통구(150)를 구비한다. 이 때 고정나사부(112)는 로드(5)를 향하여 약간 기울어지는 것이 바람직한데, 대략 5도 정도 기울어지는 것이 가장 바람직하다. 고정나사부(112)는 또한 로드(5)와 접촉하는 단부(114)가 곡면으로 형성되어 로드(5)와의 접촉면적을 넓혀서 보다 안정되게 결합하도록 하는 것이 바람직하다.In addition, the first connection member 110 has a fixing screw portion 112 and a fixing screw portion 112 for fixing the rod 5 by pressing the rod 5 slightly inside the center line of the rod 5 is inserted through the threaded connection. The sphere 150 is provided. At this time, the fixing screw 112 is preferably slightly inclined toward the rod 5, most preferably about 5 degrees. Fixing screw portion 112 is also preferably formed so that the end portion 114 in contact with the rod 5 is curved to expand the contact area with the rod 5 to be more stable coupling.
도 3을 참조하면, 제 1연결부재(110)는 로드(5) 위에서 두께가 가장 넓으며, 로드(5)를 감싸면서 점차적으로 얇아지도록 형성된다. 이때, 로드(5)를 감싼 제 1연결부재(110)의 끝부분은 둥글게 마무리되는 것이 로드(5)와 결합할 때 용이하기 때문에 구조적으로 바람직하다. 제 1연결부재(110)는 또한 로드(5) 위에서의 두께가 고정나사부(112)와의 결합부위까지 연장되며, 고정나사부(112)와의 결합부위를 지나면서 하단부의 높이가 상승하여 폭이 급감하게 된다. 이후 제 1연결부재(110)는 폭이 줄어든 상태로 다른 로드를 향하여 연장하는 연장부(116)를 가진다.Referring to FIG. 3, the first connection member 110 has the widest thickness on the rod 5, and is formed to gradually become thin while surrounding the rod 5. At this time, the end portion of the first connecting member 110 wrapped around the rod 5 is structurally preferable because it is easy to round the finish when combined with the rod (5). The first connecting member 110 also has a thickness on the rod 5 that extends to the engaging portion with the fixing screw portion 112, and the height of the lower portion rises as the width of the first connecting member 110 passes through the engaging portion with the fixing screw portion 112. do. Afterwards, the first connection member 110 has an extension portion 116 extending toward the other rod in a reduced width.
제 1연결부재(110)의 연장부(116)에는 길이방향으로 형성된 개구부(118)를 가지며, 이는 제 1연결부재(110)의 평면도를 도시하는 도 5에 잘 도시되어 있다. 제 1연결부재(110)의 개구부(118)는 폭이 연장부(116)의 대략 1/3정도가 바람직하며, 개구부(118)의 끝은 반원으로 형성되는 것이 바람직하다.The extension 116 of the first connecting member 110 has an opening 118 formed in the longitudinal direction, as shown in FIG. 5, which shows a plan view of the first connecting member 110. The opening 118 of the first connection member 110 is preferably about 1/3 of the extension portion 116, the end of the opening 118 is preferably formed in a semicircle.
제 2연결부재(120)는 제 1연결부재(110)와 대략 반대 방향으로 형성되며, 로드(5)와 연결되는 부분은 제 1연결부재(110)와 동일하며, 다만 상부는 제 1연결부재(110)보다 어느 정도 높게 형성된다. 제 2연결부재(120)에는 또한 제 1연결부재(110)에서와 유사한 고정나사부(122)가 설치되는데, 제 2연결부재(120)의 고정나사부(122)는 제 2연결부재(120)의 폭에 대응하도록 길이가 더 길게 형성된다. 제 2연결부재(120)의 고정나사부(122)는 또한 제 1연결부재(110)의 고정나사부(112)와 마찬가지로 로드와 접촉하는 단부(124)가 둥글게 형성되는 것이 바람직하다.The second connecting member 120 is formed in a direction substantially opposite to the first connecting member 110, the portion connected to the rod 5 is the same as the first connecting member 110, the upper portion of the first connecting member It is formed somewhat higher than (110). The second connecting member 120 is also provided with a fixing screw portion 122 similar to that of the first connecting member 110, the fixing screw portion 122 of the second connecting member 120 of the second connecting member 120 The length is formed longer to correspond to the width. The fixing screw portion 122 of the second connecting member 120 may also have a round end portion 124 contacting with the rod, similarly to the fixing screw portion 112 of the first connecting member 110.
제 2연결부재(120)는 또한 제 1연결부재(110)와 결합된 로드(5) 쪽으로 연장부를 가진다. 이 때, 제 2연결부재(120)의 연장부분은 상부 연장부(126)와 하부 연장부(128)로 구성되는데, 상부 연장부(126)와 하부 연장부(128)는 서로 수직으로 이격되고, 이 이격된 틈으로 제 1연결부재(110)의 연장부(116)가 삽입된다. 이 때, 제 1연결부재(110)의 연장부(116)와 제 2연결부재(120)의 상하부 연장부(126, 128)는 같은 두께로 형성되는 것이 바람직하다.The second connecting member 120 also has an extension towards the rod 5 coupled with the first connecting member 110. At this time, the extension portion of the second connection member 120 is composed of an upper extension 126 and a lower extension 128, the upper extension 126 and the lower extension 128 is spaced vertically apart from each other The extension part 116 of the first connection member 110 is inserted into the spaced gap. At this time, it is preferable that the extension part 116 of the first connection member 110 and the upper and lower extension parts 126 and 128 of the second connection member 120 have the same thickness.
제 2연결부재(120)의 상하부 연장부(126, 128)에는 동일 위치에 소정의 관통구(140, 142)가 형성되며, 이 관통구(140, 142)를 통하여 조절나사(130, 132)가 결합된다. 이 때, 상부 연장부(126)의 관통구(140)에는 나사산이 형성되지 않으며 하부 연장부(128)의 관통구(142)에는 나사산이 형성되어, 조절나사(130, 132)는 상부 연장부(126)와는 나사결합을 하지 않고 하부 연장부(128)와만 나사결합을 하게 된다. 따라서, 조임나사(130, 132)를 조일 때, 상부 연장부(126)는 제자리에 있지만 하부 연장부(128)가 조임나사(130, 132)에 의해 위로 상승하여 제 1연결부재(110)의 연장부(116)와 함께 상부 연장부(128)에 밀착 결합하게 된다. 여기서, 상부 연장부(116)의 관통구(140)는 하부 연장부(118)의 관통구(142)보다 직경이 약간 더 큰 것이 바람직하다.The upper and lower extension portions 126 and 128 of the second connection member 120 have predetermined through holes 140 and 142 formed at the same position, and the adjustment screws 130 and 132 are provided through the through holes 140 and 142. Is combined. At this time, the thread is not formed in the through hole 140 of the upper extension 126, the thread is formed in the through hole 142 of the lower extension 128, the adjustment screws 130, 132 is the upper extension The screw 126 is screwed only with the lower extension 128 without screwing. Therefore, when tightening the tightening screws (130, 132), the upper extension 126 is in place, but the lower extension 128 is raised by the tightening screws (130, 132) of the first connecting member 110 The extension part 116 is tightly coupled to the upper extension part 128. Here, the through hole 140 of the upper extension 116 is preferably slightly larger in diameter than the through hole 142 of the lower extension 118.
여기서, 조임나사(130, 132)는 제 1연결부재(110)의 개구부(118)를 통하여 제 2연결부재(120)의 관통구(140, 142)와 결합하게 된다. 따라서, 제 1연결부재(110)의 개구부(118)가 길게 형성되어 있기 때문에, 조임나사(130, 132)를 이용하여 연장부(116, 126, 128)를 서로 결합할 때, 사용자는 제 1연결부재(110)의 개구부(118)를 통해서 조임나사(130, 132)를 이동시킴으로서 연결폭을 조정할 수 있다. 이러한 연결폭 조정은 사용자는 조임나사(130, 132)를 제 1연결부재(110)의 개구부(118)를 통해서 제 2연결부재(120)의 하부 연장부(118)에 약간만 나사결합 한 상태에서, 연결폭을 조정한 다음 완전히 결합함으로써 손쉽게 이루어질 수 있다.Here, the tightening screws 130 and 132 are coupled to the through holes 140 and 142 of the second connecting member 120 through the opening 118 of the first connecting member 110. Therefore, since the opening 118 of the first connecting member 110 is formed long, when the extension parts 116, 126, 128 are coupled to each other using the tightening screws 130 and 132, the user may firstly make a first connection. The connecting width can be adjusted by moving the tightening screws 130 and 132 through the opening 118 of the connecting member 110. In this connection width adjustment, a user screwes the tightening screws 130 and 132 to the lower extension 118 of the second connecting member 120 through the opening 118 of the first connecting member 110. This can be done easily by adjusting the connection width and then fully mating.
여기서, 조절나사는 하나 또는 다수개가 사용될 수 있으나, 본 발명에서는 구조적 안정성과 제작의 편리성을 모두 고려하여 두 개를 사용하였다.Here, one or more adjustment screws may be used, but in the present invention, two are used in consideration of both structural stability and convenience of manufacture.
또한, 제 1 및 제 2연결부재(110, 120)는 연장부(116, 126, 128)에서 폭이 넓으며, 로드(5)와 결합되는 부위에서는 폭이 점차적으로 줄어들다가 로드(5)를 감싸면서 약간 넓어지도록 형성하는 것이 바람직하다. 이는 연장부(116, 126, 128) 간의 결합부위와 로드(5)와의 결합부위에서 접촉되는 면적을 넓혀줌으로써 구조적으로 튼튼하고 안정되게 하려는 것이며, 응력을 상대적으로 적게 받는 부분은 어느 정도 폭을 줄일 수 있기 때문이다.In addition, the first and second connection members 110 and 120 have a wide width at the extension portions 116, 126, and 128, and the width of the first and second connection members 110 and 120 gradually decreases at the portion where the first and second connection members 110 and 120 are coupled to the rod 5. It is preferable to form so that it may become slightly wider while wrapping. This is to increase the area of contact between the coupling portion between the extension portions 116, 126, and 128 and the coupling portion with the rod 5 to make it structurally strong and stable, and to reduce the width to a part where the stress is relatively low. Because it can.
이와 같이 구성된 본 발명에 따른 척추내 고정장치는 각 로드에 별도의 연결부재를 설치하고 연결부재를 이용하여 연결폭을 조절하기가 용이하다는 장점이 있다.The intravertebral fixation device according to the present invention configured as described above has an advantage in that a separate connection member is installed on each rod and the connection width can be easily adjusted using the connection member.
또한, 본 발명은 고정나사부를 이용하여 로드를 강하게 밀착 결합하고 조임나사를 이용하여 연결부재를 서로 단단히 조여줌으로써 구조적으로 매우 안정된다는 장점이 있다.In addition, the present invention has the advantage that it is structurally very stable by tightly coupling the rod by using a fixed screw portion and by tightening the connection members to each other using a tightening screw.
또한, 고정나사부를 이용하여 로드와 결합함으로써, 연결부재와 로드와의 결합이 용이하고, 구조를 단순화시킴으로서 제작 및 사용이 편리하다는 장점이 있다.In addition, by combining with the rod by using a fixing screw, there is an advantage that the coupling member and the rod is easily coupled, and the structure is simplified and convenient to manufacture and use.
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1019990025051A KR100307306B1 (en) | 1999-06-28 | 1999-06-28 | Apparatus for fixing rachis |
US09/347,836 US6264658B1 (en) | 1998-07-06 | 1999-07-02 | Spine fixing apparatus |
JP11192341A JP3086455B2 (en) | 1998-07-06 | 1999-07-06 | Spinal fixation device |
US09/878,329 US6592585B2 (en) | 1998-07-06 | 2001-06-12 | Spine fixing apparatus |
Applications Claiming Priority (1)
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KR1019990025051A KR100307306B1 (en) | 1999-06-28 | 1999-06-28 | Apparatus for fixing rachis |
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KR20000012195A true KR20000012195A (en) | 2000-03-06 |
KR100307306B1 KR100307306B1 (en) | 2001-09-24 |
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KR1019990025051A KR100307306B1 (en) | 1998-07-06 | 1999-06-28 | Apparatus for fixing rachis |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100811563B1 (en) * | 2006-06-07 | 2008-03-27 | 주식회사 솔고 바이오메디칼 | The minimally invasive instrument of spinal fixation device |
WO2022097802A1 (en) * | 2020-11-03 | 2022-05-12 | 주식회사 솔고 바이오메디칼 | Cervical spine cross link device |
CN115153794A (en) * | 2022-07-28 | 2022-10-11 | 中国人民解放军总医院第一医学中心 | Be used for backbone to strengthen pedicle of vertebral arch screw internal fixation device |
-
1999
- 1999-06-28 KR KR1019990025051A patent/KR100307306B1/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100811563B1 (en) * | 2006-06-07 | 2008-03-27 | 주식회사 솔고 바이오메디칼 | The minimally invasive instrument of spinal fixation device |
WO2022097802A1 (en) * | 2020-11-03 | 2022-05-12 | 주식회사 솔고 바이오메디칼 | Cervical spine cross link device |
CN115153794A (en) * | 2022-07-28 | 2022-10-11 | 中国人民解放军总医院第一医学中心 | Be used for backbone to strengthen pedicle of vertebral arch screw internal fixation device |
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