WO2011145771A1 - Spinal fixation apparatus - Google Patents

Spinal fixation apparatus Download PDF

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Publication number
WO2011145771A1
WO2011145771A1 PCT/KR2010/003621 KR2010003621W WO2011145771A1 WO 2011145771 A1 WO2011145771 A1 WO 2011145771A1 KR 2010003621 W KR2010003621 W KR 2010003621W WO 2011145771 A1 WO2011145771 A1 WO 2011145771A1
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WO
WIPO (PCT)
Prior art keywords
washer
screw
spinal fixation
fixing
spinal
Prior art date
Application number
PCT/KR2010/003621
Other languages
French (fr)
Korean (ko)
Inventor
김동윤
장상범
Original Assignee
Kim Dong-Yun
Jang Sang Beom
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kim Dong-Yun, Jang Sang Beom filed Critical Kim Dong-Yun
Publication of WO2011145771A1 publication Critical patent/WO2011145771A1/en

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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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
    • A61B17/702—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other having a core or insert, and a sleeve, whereby a screw or hook can move along the core or in the sleeve
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7002—Longitudinal elements, e.g. rods
    • A61B17/7004—Longitudinal elements, e.g. rods with a cross-section which varies along its length
    • A61B17/7008—Longitudinal elements, e.g. rods with a cross-section which varies along its length with parts of, or attached to, the longitudinal elements, bearing against an outside of the screw or hook heads, e.g. nuts on threaded rods
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7044—Screws or hooks combined with longitudinal elements which do not contact vertebrae also having plates, staples or washers bearing on the vertebrae
    • 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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/809—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with bone-penetrating elements, e.g. blades or prongs

Definitions

  • the present invention relates to a spinal fixation device, and more particularly, after performing a pedicle screw insertion operation using a spinal fixation screw, the soft spinal fixation can be used semi-permanently while also increasing the degree of freedom of spine movement of the patient. Relates to a device.
  • spinal diseases include intervertebral disc herniation (vertebral disc), scoliosis, and degenerative disc disease.
  • Verebral disc intervertebral disc herniation
  • scoliosis spinal spondosis
  • degenerative disc disease Patients with a damaged part of the spine are unable to perform activities necessary for personal life in that condition, even if the degree of injury is not severe. The damaged part of the body may be pressed or touched by another adjacent part, causing pain.
  • Degenerative disc disease of the spinal disease is the narrowing of the disc, the gap narrows and escapes to compress the ganglion causing the low back pain (Leg Pain) and leg pain (Decompression) of patients
  • the procedure is performed to fix the unstable intervertebral body with a spinal fixation device.
  • Conventional spinal fixation device is to fix the spinal fixation screw to the vertebral bones, and between the fixed spinal fixation screws to connect the elastic body made of Poly Carbon Urethane (PCU) material with a steel wire, spine movement of the patient by the elastic body Allowing fixation between the vertebral bones while allowing for a certain degree of freedom for.
  • PCU Poly Carbon Urethane
  • the above-described conventional spinal fixation device has a disadvantage in that the freedom of spine movement of the patients is limited because the supporting elastic body connecting the spinal fixation screws is formed in one cylindrical shape.
  • An object of the present invention for solving the above problems, in particular, to provide a spinal fixation device that can further improve the degree of freedom of spine movement of the patient during vertebral fixation using pedicle screw insertion.
  • Spinal fixation device of the present invention for achieving the above object is a spinal fixation screw which is fixed to the spinal bone; A connection line inserted into and fixed to the spinal fixation screw and connecting the adjacent spinal fixation screws to each other; And a plurality of elastic plates which are sewn on the connection line and are compressed and fitted to each other between the spinal fixation screws.
  • the spinal fixing screw is a screw rod formed with a spherical head portion on the upper end of the screw portion fixed to the vertebral bone;
  • a fastening nut formed at a lower side of the head seating portion to which the head portion of the screw rod is inserted into surface contact;
  • a fixing washer inserted into and fixed to a washer fixing portion formed above the head seating portion of the fastening nut, the fixing washer restraining the head portion of the screw rod to the head seating portion of the fastening nut;
  • It may include a fastening bolt that is screwed into the female screw portion formed on the washer fixing portion of the fastening nut, and tightening the connection line inserted between the fixing washer through the openings formed on both sides of the fastening nut. have.
  • the fixing washer is preferably formed in the through hole so that the saddle portion protruding in the surface contact with the top of the head portion of the screw rod, and the penetrating hole groove formed in the top of the head portion of the screw rod vertically penetrating the center; .
  • the apparatus may further include a pressure plate interposed between the fixing washer of the fastening nut and the fastening bolt.
  • a first connecting line receiving groove is formed on the upper surface of the fixing washer, and a first connecting line receiving groove is formed on the lower surface of the pressure plate in contact with the upper surface of the fixing washer so as to correspond to the first connecting line insertion groove. It is desirable to be.
  • the elastic plate is made of a flat plate having a predetermined thickness, it is preferable that both edges are formed round.
  • the apparatus may further include a seat fixing washer for seating the vertebral fixation screw according to the surface shape of the vertebrae in which the vertebral fixation screw is embedded, and the lower surface is formed to correspond to the surface shape of the vertebrae.
  • the screw rod hole is formed in the center portion so that the screw rod of the spinal fixing screw penetrates, and the fastening nut seating groove is formed so that the lower portion of the fastening nut of the spinal screw is inserted into the surface contact around the washer hole in the upper surface.
  • the seating protrusion protrudes to be fixed to the vertebrae along the edge of the bottom washer.
  • the elastic plate may be made of Poly Carbon Urethane (PCU) material
  • the connection line may be made of Poly Ethylene (PE) material.
  • a plurality of elastic plates are fixed to the connection line between the vertebral fixation screws fixed to the vertebral bone to be compressed to each other, and the elastic plates have a predetermined thickness and the sides are rounded and chamfered. It is made of a donut shape, has the effect of further increasing the degree of freedom for spine movement of the patient after the procedure.
  • FIG. 1 is a perspective view showing a spinal fixation apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a longitudinal cross-sectional view of the spinal fixator viewed along the line II-II of FIG. 1.
  • FIG. 2 is a longitudinal cross-sectional view of the spinal fixator viewed along the line II-II of FIG. 1.
  • FIG. 3 is an exploded perspective view of the spinal fixation screw of FIG.
  • FIG. 4 is a longitudinal cross-sectional view of the spinal fixation screw taken along line IV-IV of FIG. 2.
  • Figure 5 is a side cross-sectional view showing a spinal fixation apparatus according to a second embodiment of the present invention.
  • FIG. 1 is a perspective view showing a spinal fixation apparatus according to an embodiment of the present invention
  • Figure 2 is a longitudinal cross-sectional view of the spinal fixation device seen along the line II-II of FIG.
  • the spinal fixation apparatus 1 includes a spinal fixation screw 100, a connection line 200, and a plurality of elastic plates 300.
  • the spinal fixation device 1 of the present embodiment is such that the plurality of elastic plates 300 separated from each other between the spinal fixation screws 100 fixed to the vertebral bone are stitched and fixed to the connection line 200. By doing so, the degree of freedom of spine movement of the patient after the procedure can be further increased.
  • FIG. 3 is an exploded perspective view of the spinal fixation screw of FIG. 1, and FIG. 4 is a longitudinal cross-sectional view of the spinal fixation screw taken along line IV-IV of FIG. 2.
  • the spinal fixation screw 100 is embedded in the vertebral bone to fix the device, as well as to bite one end of the connecting line 200 to sew and secure the elastic plate 300 To be able to, it comprises a screw rod 110, fastening nut 120, fixing washer 130, the pressure plate 140 and the fastening bolt 150.
  • the screw rod 110 is formed of a screw 111 formed with a screw thread on the outer circumferential surface to be fixed to the vertebral bone, and a head 115 formed in a spherical shape at the upper end of the screw 111.
  • the rod tool groove 116 is formed on the head 115 of the screw rod 110 so that the screw rod 110 can be fixed to the spinal bone using a tool.
  • the fastening nut 120 includes a head seating part 121, a washer fixing part 122, a female screw part 123, and a side opening part.
  • the head seating part 121 is formed at the lower side of the fastening nut 120 to allow the head part 115 of the screw rod 110 to be inserted through the fastening nut 120 to be seated in surface contact.
  • the washer fixing part 122 is formed above the head seating part 121 so that the fixing washer 130 is inserted and fixed.
  • the female threaded portion 123 has a thread formed on the inner circumferential surface of the fastening nut 120 on the upper side of the washer fixing portion 122 such that the fastening bolt 140 is inserted into the screw.
  • the side opening portion is formed so as to open both side wall surfaces facing each other in the upper female screw portion 123 of the washer fixing portion 122 to the connecting line between the fixing washer 130 and the pressing plate 150 fixed to the fastening nut 120. Make sure you insert it.
  • the fixing washer 130 is fitted to the washer fixing portion 122 of the fastening nut 120 to be fixed so as to restrain the head 115 of the screw rod 110 within the head seating portion 121 of the fastening nut 120.
  • the washer fastening groove 131 is formed on the outer circumferential surface.
  • a saddle portion 132 is formed on the bottom surface of the fixing washer 130 to be in surface contact with the top of the head portion 115 of the screw rod 110, and is formed on the top of the head portion 115 of the screw rod 110.
  • the through hole 133 is formed to expose the rod tool groove 116.
  • the fastening nut 120 to which the connection line 200 is fixed may move more freely in the upper part of the screw rod 110 fixed to the vertebral bone.
  • the fixing washer 130 has a first connection line receiving groove 135 formed on an upper surface thereof so that the connection line 200 may be fitted through the side opening of the fastening nut 120 on the upper surface in contact with the pressure plate 150.
  • the pressure plate 150 is interposed between the fixing washer 130 and the fastening bolt 140 of the fastening nut 120, and is formed to correspond to the first connection line insertion groove 135 on the lower surface of the fixing washer 130. 2 connecting line insertion groove 151 is formed.
  • the fastening bolt 140 is inserted into the female screw part 124 formed on the upper side of the fastening nut 120, and a male screw part 141 is formed on the outer circumferential surface to be screwed thereon, and an upper surface to tighten the fastening bolt 140 using a tool.
  • the bolt tool groove 142 is formed in the.
  • the fastening bolt 140 is inserted into the female threaded portion 124 of the fastening nut 120 and screwed to push the pressure plate 150 downward, and eventually, the connection line of the fixing washer 130 through the side opening of the fastening nut 140.
  • the connection line 200 inserted into the insertion groove 135 is fixed by pressing the connection line pressing protrusion 151 of the pressure plate 150.
  • connection line 200 is inserted into and fixed to the spinal fixation screw 100 and connects two adjacent spinal fixation screws 100 to each other.
  • connection line 200 is made of a polyethylene (PE: Poly Ethylene) material having a predetermined rigidity to be fixed by inserting the elastic plate 300 is inserted between and fixed between the spinal fixing screws 100 do.
  • PE Poly Ethylene
  • connection line 200 is to be connected between the two spinal fixing screws 100 that are fixed to the vertebral bone, but the present invention is not necessarily limited thereto and by the connection line 200 Naturally, two or more consecutive spinal fixation screws 100 may be connected to each other.
  • the elastic plates 300 are compressed and fixed to each other between the spinal fixation screws 100 by a connecting line 200 inserted through a connecting hole 320 passing through a central portion thereof, and thus, the spinal fixing device 1 of the present embodiment.
  • a connecting line 200 inserted through a connecting hole 320 passing through a central portion thereof, and thus, the spinal fixing device 1 of the present embodiment.
  • the elastic plate 300 in the present embodiment is made of a poly carbon urethane (PCU: Poly Carbon Urethane) material, it illustrates that the disk shape having a predetermined thickness, that is, made of a doughnut shape.
  • PCU Poly Carbon Urethane
  • the elastic plate 300 is divided into each other in a plate shape having a predetermined thickness, the spine bones of the patient can be moved more freely than the conventional elastic body made of one tubular shape between the conventional spinal fixation screws 100.
  • the present invention is not necessarily limited thereto, and the elastic plates 300 may be configured to have optimal degrees of freedom for spinal motion according to the weight of the patient by adjusting various sizes (diameters), materials, and elasticity. For example, by forming the diameter of the elastic plate 300 differently to 7mm, 8mm, or 9mm to configure the elasticity due to these diameters differently, so as to select and use a more suitable elastic plate according to the weight of the patient can do.
  • FIG. 5 a spinal fixation apparatus according to a second embodiment of the present invention will be described with reference to FIG. 5, and the same reference numerals are used for the same and similar configurations as compared with the first embodiment, and the descriptions thereof will be redundant. Omit.
  • Figure 5 is a side cross-sectional view showing a spinal fixation apparatus according to a second embodiment of the present invention.
  • the spinal fixation device compared with the first embodiment described above, the spinal fixation device, the spinal fixation according to the surface shape of the vertebral bone 500 in which the spinal fixation screw 100 is embedded and fixed There is a difference configured to further comprise a seating washer 400 for seating the screw 100.
  • the seat fixing washer 400 has a lower surface 401 is formed to correspond to the surface shape of the vertebra, the screw rod through hole 402 is formed in the center so that the screw rod of the spinal fixing screw 100, the upper surface ( At 403, a fastening nut seating groove 404 is formed to be fitted with the bottom of the fastening nut 120 of the spinal fixation screw 100 in surface contact with the washer through-hole.
  • the seating washer 400 is driven between the lower surface of the fastening nut 120 of the spinal fixation screw 100 and the surface of the spinal bone 500 when the fixation screw 100 is driven into the vertebral bone 500. To make it more secure.
  • a plurality of seating protrusions 405 are formed to protrude so as to be embedded in the vertebral bone 500 along the edge of the bottom surface 401 of the seating washer 400.
  • the seat fixing washer 400 is fixed to the vertebral bone 500 by the seating protrusion 405
  • the vertebral fixation screw 100 embedded in the vertebral bone 500 is fixed by the spine movement process of the patient. It can be prevented from loosening.
  • spinal fixation device 100 spinal fixation screw
  • washer fixing part 124 female thread part
  • first connecting line receiving groove 140 fastening bolt

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Abstract

The present invention relates to a spinal fixation apparatus, including: a spinal fixation screw to be fixed to a vertebra; a connection line inserted into and fixed to the spinal fixation screw so as to connect the spinal fixation screw to another adjacent spinal fixation screw; and a plurality of elastic plates mounted on the connection line and fixed between the spinal fixation screws. In spinal fixation based on spinal pedicle screw insertion, the elastic plates improve spinal motion in a patient.

Description

척추 고정 장치Spinal fixture
본 발명은 척추 고정 장치에 관한 것으로서, 좀더 상세하게는 척추 고정 나사를 이용한 척추경 나사 삽입술을 시술한 후, 환자의 척추 운동의 자유도를 높일 수 있도록 함과 아울러 반영구적으로 사용할 수 있도록 하는 연성 척추 고정 장치에 관한 것이다.The present invention relates to a spinal fixation device, and more particularly, after performing a pedicle screw insertion operation using a spinal fixation screw, the soft spinal fixation can be used semi-permanently while also increasing the degree of freedom of spine movement of the patient. Relates to a device.
일반적으로 척추질환에는 추간판탈출증(척추디스크), 척추측만증, 퇴행성 디스크 질환 등이 있으며, 척추의 일부가 손상된 환자는 그 상태에서 개인 생활에 필요한 활동을 할 수 없고, 손상 정도가 심하지 않은 경우에도 척추의 손상된 부분이 다른 인접한 부분에 눌려지거나 닿게 되어 통증을 유발하게 된다.In general, spinal diseases include intervertebral disc herniation (vertebral disc), scoliosis, and degenerative disc disease. Patients with a damaged part of the spine are unable to perform activities necessary for personal life in that condition, even if the degree of injury is not severe. The damaged part of the body may be pressed or touched by another adjacent part, causing pain.
따라서, 척추의 일부가 파손되거나 손상된 환자는 손상된 부분에 인공보조물로 지지하는 수술을 시행하여 교정해야만 개인 생활을 편안하게 영위할 수 있게 된다. Therefore, a part of the spine is damaged or injured, the patient will be able to lead a personal life comfortably only by performing surgery to support the damaged part with artificial prosthesis.
상기한 척추질환 중 퇴행성 디스크질환은 디스크의 수분이 빠져 간격이 좁아지고 탈출하여 신경절을 압박하여 환자들의 요통(Low Back Pain)과 다리 통증(Leg Pain) 등을 일으키는데, 이때 감압(Decompression)술을 시술하여 척추 고정 장치로 불안정한 척추추간체 사이를 고정하도록 한다.Degenerative disc disease of the spinal disease is the narrowing of the disc, the gap narrows and escapes to compress the ganglion causing the low back pain (Leg Pain) and leg pain (Decompression) of patients The procedure is performed to fix the unstable intervertebral body with a spinal fixation device.
종래 척추 고정 장치는 척추 고정 나사를 척추 뼈들에 각각 고정하고, 고정된 척추 고정 나사들 사이를 폴리 카본 우레탄(PCU: Poly Carbon Urethane) 재질의 탄성체를 강선으로 연결하여, 탄성체에 의해 환자의 척추 운동에 대한 소정의 자유도를 허용하면서 척추 뼈들 사이를 고정하도록 한다. Conventional spinal fixation device is to fix the spinal fixation screw to the vertebral bones, and between the fixed spinal fixation screws to connect the elastic body made of Poly Carbon Urethane (PCU) material with a steel wire, spine movement of the patient by the elastic body Allowing fixation between the vertebral bones while allowing for a certain degree of freedom for.
그러나, 상기한 종래 척추 고정 장치의 경우 척추 고정 나사들 사이를 연결하는 지지하는 탄성체가 하나의 통형상으로 이루어지기 때문에 환자들의 척추 운동에 대한 자유도가 제한되는 단점을 갖는다.However, the above-described conventional spinal fixation device has a disadvantage in that the freedom of spine movement of the patients is limited because the supporting elastic body connecting the spinal fixation screws is formed in one cylindrical shape.
또한, 종래 척추 고정 장치의 경우 탄성체가 폴리 카본 우레탄(PCU: Poly Carbon Urethane) 재질로 이루어지기 때문에 원래의 목적인 정상적인 관절운동 범위를 유지할 수 없어서 나사못의 해리의 원인으로 작용하여 반영구적으로 사용할 수 없게 되는 단점을 갖는다.In addition, in the case of the conventional spinal fixation device, since the elastic body is made of Poly Carbon Urethane (PCU) material, it is unable to maintain the normal range of joint movement, which is the original purpose, and thus becomes a cause of dissociation of the screw and thus cannot be used semi-permanently. Has disadvantages.
상기한 문제점을 해결하기 위한 본 발명의 목적은, 상세하게는 척추경 나사 삽입술을 이용해 척추 고정시 환자의 척추 운동의 자유도를 좀더 향상시킬 수 있는 척추 고정 장치를 제공하는 것이다.An object of the present invention for solving the above problems, in particular, to provide a spinal fixation device that can further improve the degree of freedom of spine movement of the patient during vertebral fixation using pedicle screw insertion.
상기의 목적을 달성하기 위한 본 발명의 척추 고정 장치는 척추 뼈에 고정되는 척추 고정 나사; 상기 척추 고정 나사에 끼워져 고정되며, 인접하는 상기 척추 고정 나사들을 서로 연결하는 연결선; 및 상기 연결선에 꿰어져 상기 척추 고정 나사들 사이에서 서로 압착되며 끼워져 고정되는 다수의 탄성판;들을 포함하도록 구성된다.Spinal fixation device of the present invention for achieving the above object is a spinal fixation screw which is fixed to the spinal bone; A connection line inserted into and fixed to the spinal fixation screw and connecting the adjacent spinal fixation screws to each other; And a plurality of elastic plates which are sewn on the connection line and are compressed and fitted to each other between the spinal fixation screws.
여기서, 상기 척추 고정 나사는 상기 척추 뼈에 고정되는 나사부의 상단에 구형상의 해드부가 형성되는 나사봉; 상기 나사봉의 해드부가 면접촉하도록 끼워져 안착되는 해드 안착부가 하측에 형성되는 체결 너트; 상기 체결 너트의 해드 안착부 상측에 형성되는 와셔 고정부에 끼워져 고정되며, 상기 나사봉의 해드부를 상기 체결 너트의 해드 안착부에 구속하는 고정 와셔; 상기 체결 너트의 와셔 고정부 상측에 형성되는 암나사부에 끼워져 나사 결합되며, 상기 체결 너트의 양측에 형성되는 개방부를 통해 상기 고정 와셔와의 사이로 삽입된 상기 연결선을 조여 고정하는 체결 볼트를 포함할 수 있다.Here, the spinal fixing screw is a screw rod formed with a spherical head portion on the upper end of the screw portion fixed to the vertebral bone; A fastening nut formed at a lower side of the head seating portion to which the head portion of the screw rod is inserted into surface contact; A fixing washer inserted into and fixed to a washer fixing portion formed above the head seating portion of the fastening nut, the fixing washer restraining the head portion of the screw rod to the head seating portion of the fastening nut; It may include a fastening bolt that is screwed into the female screw portion formed on the washer fixing portion of the fastening nut, and tightening the connection line inserted between the fixing washer through the openings formed on both sides of the fastening nut. have.
또한, 상기 고정 와셔는 상기 나사봉의 상기 해드부 상부에 면접촉하도록 돌출 형성되는 새들부와, 중심를 수직 관통하며 상기 나사봉의 해드부 상단에 형성되는 봉공구홈이 노출되게 관통공이 형성되는 것이 바람직하다. In addition, the fixing washer is preferably formed in the through hole so that the saddle portion protruding in the surface contact with the top of the head portion of the screw rod, and the penetrating hole groove formed in the top of the head portion of the screw rod vertically penetrating the center; .
또한, 상기 체결 너트의 상기 고정 와셔와 상기 체결 볼트 사이에 개재되는 가압판을 더 포함할 수 있다. The apparatus may further include a pressure plate interposed between the fixing washer of the fastening nut and the fastening bolt.
또한, 상기 고정 와셔의 상면에 상기 연결선이 끼워지는 제1 연결선 수용홈이 형성되고, 상기 고정 와셔의 상면과 접하는 상기 가압판의 하면에 상기 제1 연결선 삽입홈에 대응되게 제2 연결선 수용홈이 형성되는 것이 바람직하다.In addition, a first connecting line receiving groove is formed on the upper surface of the fixing washer, and a first connecting line receiving groove is formed on the lower surface of the pressure plate in contact with the upper surface of the fixing washer so as to correspond to the first connecting line insertion groove. It is desirable to be.
또한, 상기 탄성판은 소정의 두께를 가지는 평판형으로 이루어지며, 양측 가장자리가 라운드지게 형성되는 것이 바람직하다. In addition, the elastic plate is made of a flat plate having a predetermined thickness, it is preferable that both edges are formed round.
또한, 상기 척추 고정 나사가 박혀 고정되는 상기 척추 뼈의 표면 형상에 따라 상기 척추 고정 나사를 안착시키는 안착 고정 와셔를 더 포함하고, 상기 안착 고정 와서는 하면이 상기 척추뼈의 표면 형상에 대응되게 형성되고, 상기 척추 고정 나사의 나사봉이 관통하도록 중심부에 나사봉 통공이 형성되며, 상면에서 와셔 통공 주위로 상기 척추 고정 나사의 체결 너트 하부가 면접촉하며 끼워지도록 체결 너트 안착홈이 형성되는 것이 바람직하다. The apparatus may further include a seat fixing washer for seating the vertebral fixation screw according to the surface shape of the vertebrae in which the vertebral fixation screw is embedded, and the lower surface is formed to correspond to the surface shape of the vertebrae. The screw rod hole is formed in the center portion so that the screw rod of the spinal fixing screw penetrates, and the fastening nut seating groove is formed so that the lower portion of the fastening nut of the spinal screw is inserted into the surface contact around the washer hole in the upper surface. .
또한, 상기 완착 와셔의 하면 가장 자리를 따라 상기 척추뼈에 박혀 고정되도록 안착 돌기가 돌출 형성되는 것이 바람직하다. In addition, it is preferable that the seating protrusion protrudes to be fixed to the vertebrae along the edge of the bottom washer.
또한, 상기 탄성판은 폴리 카본 우레탄(PCU: Poly Carbon Urethane) 재질로 이루어지고, 상기 연결선은 폴리 에틸렌(PE: Poly Ethylene) 재질로 이루어질 수 있다.In addition, the elastic plate may be made of Poly Carbon Urethane (PCU) material, and the connection line may be made of Poly Ethylene (PE) material.
상기한 본 발명의 척추 고정 장치에 따르면, 척추 뼈에 고정되는 척추 고정 나사들 사이에 다수의 탄성판을 연결선에 꿰어 서로 압착되도록 고정하고, 탄성판들은 기설정 두께를 가지며 측면이 라운드지게 모따기된 도우넛 형상으로 이루어져, 시술후 환자의 척추 운동에 대한 자유도를 좀더 높일 수 있는 효과를 갖는다.According to the spinal fixation apparatus of the present invention described above, a plurality of elastic plates are fixed to the connection line between the vertebral fixation screws fixed to the vertebral bone to be compressed to each other, and the elastic plates have a predetermined thickness and the sides are rounded and chamfered. It is made of a donut shape, has the effect of further increasing the degree of freedom for spine movement of the patient after the procedure.
도 1은 본 발명의 제1 실시예에 따른 척추 고정 장치를 도시한 사시도이다.1 is a perspective view showing a spinal fixation apparatus according to a first embodiment of the present invention.
도 2는 도 1의 Ⅱ-Ⅱ선을 따라 잘라서 본 척추 고정 장치의 종단면도이다.FIG. 2 is a longitudinal cross-sectional view of the spinal fixator viewed along the line II-II of FIG. 1. FIG.
도 3은 도 1의 척추 고정 나사의 분해 시사도이다.3 is an exploded perspective view of the spinal fixation screw of FIG.
도 4는 도 2의 Ⅳ-Ⅳ선을 따라 잘라서 척추 고정 나사의 종단면도이다.4 is a longitudinal cross-sectional view of the spinal fixation screw taken along line IV-IV of FIG. 2.
도 5는 본 발명의 제2 실시예에 따른 척추 고정 장치를 도시한 측단면도이다. Figure 5 is a side cross-sectional view showing a spinal fixation apparatus according to a second embodiment of the present invention.
이하, 첨부한 도면을 참조하여 본 발명의 실시예에 대하여 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며 여기에서 설명하는 실시예에 한정되지 않는다. 도면에서 본 발명을 명확하게 설명하기 위해서 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 동일 또는 유사한 구성요소에 대해서는 동일한 참조부호를 붙였다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.
도 1은 본 발명의 일실시예에 따른 척추 고정 장치를 도시한 사시도이고, 도2는 도 1의 Ⅱ-Ⅱ선을 따라 잘라서 본 척추 고정 장치의 종단면도이다.1 is a perspective view showing a spinal fixation apparatus according to an embodiment of the present invention, Figure 2 is a longitudinal cross-sectional view of the spinal fixation device seen along the line II-II of FIG.
도 1 및 도 2를 참조하여 설명하면, 본 실시예에 따른 척추 고정 장치(1)는 척추 고정 나사(100), 연결선(200), 다수의 탄성판(300)를 포함하여 구성된다.Referring to FIGS. 1 and 2, the spinal fixation apparatus 1 according to the present exemplary embodiment includes a spinal fixation screw 100, a connection line 200, and a plurality of elastic plates 300.
따라서, 본 실시예의 척추 고정 장치(1)는 척추 뼈에 박혀 고정된 척추 고정 나사(100)들 사이에 서로 분리된 다수의 탄성판(300)들이 연결선(200)에 꿰어져 서로 압착되며 고정되도록 함으로써, 시술후 환자의 척추 운동에 대한 자유도를 좀더 높일 수 있도록 한다. Accordingly, the spinal fixation device 1 of the present embodiment is such that the plurality of elastic plates 300 separated from each other between the spinal fixation screws 100 fixed to the vertebral bone are stitched and fixed to the connection line 200. By doing so, the degree of freedom of spine movement of the patient after the procedure can be further increased.
도 3은 도 1의 척추 고정 나사의 분해 시사도이고, 도 4는 도 2의 Ⅳ-Ⅳ선을 따라 잘라서 척추 고정 나사의 종단면도이다. 3 is an exploded perspective view of the spinal fixation screw of FIG. 1, and FIG. 4 is a longitudinal cross-sectional view of the spinal fixation screw taken along line IV-IV of FIG. 2.
도 3 및 도 4를 참조하여 설명하면, 척추 고정 나사(100)는 척추 뼈에 박혀 고정되어 장치를 고정시킴과 아울러 탄성판(300)들을 꿰어 고정하는 연결선(200)의 일측 단부를 물어 고정할 수 있도록, 나사봉(110), 체결 너트(120), 고정 와셔(130), 가압판(140) 및 체결 볼트(150)를 포함하여 구성된다.Referring to Figures 3 and 4, the spinal fixation screw 100 is embedded in the vertebral bone to fix the device, as well as to bite one end of the connecting line 200 to sew and secure the elastic plate 300 To be able to, it comprises a screw rod 110, fastening nut 120, fixing washer 130, the pressure plate 140 and the fastening bolt 150.
나사봉(110)은 척추 뼈에 박혀 고정되도록 외주면에 나사산이 형성되는 나사부(111)와, 나사부(111)의 상단에서 구형상으로 형성되는 해드부(115)로 이루어진다.The screw rod 110 is formed of a screw 111 formed with a screw thread on the outer circumferential surface to be fixed to the vertebral bone, and a head 115 formed in a spherical shape at the upper end of the screw 111.
여기서, 나사봉(110)의 해드부(115) 상측에는 공구를 이용해 나사봉(110)을척추 뼈에 박아 고정시킬 수 있도록 봉공구홈(116)이 형성된다.Here, the rod tool groove 116 is formed on the head 115 of the screw rod 110 so that the screw rod 110 can be fixed to the spinal bone using a tool.
체결 너트(120)는 해드 안착부(121), 와셔 고정부(122), 암나사부(123) 및 측면 개방부를 포함하여 구성된다.The fastening nut 120 includes a head seating part 121, a washer fixing part 122, a female screw part 123, and a side opening part.
해드 안착부(121)는 체결 너트(120)의 하측에 형성되어 체결 너트(120)를 관통하며 끼워지는 나사봉(110)의 해드부(115)가 면접촉하며 안착되도록 한다. The head seating part 121 is formed at the lower side of the fastening nut 120 to allow the head part 115 of the screw rod 110 to be inserted through the fastening nut 120 to be seated in surface contact.
와셔 고정부(122)는 해드 안착부(121) 상측에 형성되어 고정 와셔(130)가 끼워져 고정되도록 한다. The washer fixing part 122 is formed above the head seating part 121 so that the fixing washer 130 is inserted and fixed.
암나사부(123)는 와셔 고정부(122) 상측의 체결 너트(120) 내주면 상에 나사산이 형성되어 체결 볼트(140)가 끼워져 나사 결합되도록 한다. The female threaded portion 123 has a thread formed on the inner circumferential surface of the fastening nut 120 on the upper side of the washer fixing portion 122 such that the fastening bolt 140 is inserted into the screw.
그리고, 측면 개방부는 와셔 고정부(122) 상측 암나사부(123)에서 서로 마주하는 양쪽 측벽면을 개방되게 형성하여 체결 너트(120)에 끼워져 고정되는 고정 와셔(130)와 가압판(150) 사이로 연결선을 끼울 수 있도록 한다. In addition, the side opening portion is formed so as to open both side wall surfaces facing each other in the upper female screw portion 123 of the washer fixing portion 122 to the connecting line between the fixing washer 130 and the pressing plate 150 fixed to the fastening nut 120. Make sure you insert it.
고정 와셔(130)는 나사봉(110)의 해드부(115)를 체결 너트(120)의 해드 안착부(121) 내에 구속하도록, 체결 너트(120)의 와셔 고정부(122)에 끼워져 고정되게 외주면 상에 와셔 체결홈(131)이 형성된다.The fixing washer 130 is fitted to the washer fixing portion 122 of the fastening nut 120 to be fixed so as to restrain the head 115 of the screw rod 110 within the head seating portion 121 of the fastening nut 120. The washer fastening groove 131 is formed on the outer circumferential surface.
그리고, 고정 와셔(130)의 하면에는 나사봉(110)의 해드부(115) 상부와 면접촉하도록 새들부(132)가 형성되고, 나사봉(110)의 해드부(115) 상단에 형성되는 봉공구홈(116)이 노출되게 관통공(133)이 형성된다. In addition, a saddle portion 132 is formed on the bottom surface of the fixing washer 130 to be in surface contact with the top of the head portion 115 of the screw rod 110, and is formed on the top of the head portion 115 of the screw rod 110. The through hole 133 is formed to expose the rod tool groove 116.
따라서, 나사봉(110)의 해드부(115)가 체결 너트(120)의 해드 안착부(121)와 고정 와셔(130)의 새들부(132) 사이에서 면접촉하며 슬라이딩 가능하게 고정됨에 따라, 결국 연결선(200)이 고정되는 체결 너트(120)가 척추 뼈에 박혀 고정되는 나사봉(110)의 상부에서 좀더 자유롭게 움직일 수 있도록 한다. Accordingly, as the head portion 115 of the screw rod 110 is fixed in surface contact and slidably between the head seating portion 121 of the fastening nut 120 and the saddle portion 132 of the fixing washer 130, As a result, the fastening nut 120 to which the connection line 200 is fixed may move more freely in the upper part of the screw rod 110 fixed to the vertebral bone.
또한, 고정 와셔(130)는 가압판(150)과 접하는 상면에 체결 너트(120)의 측면 개방부를 통해 연결선(200)이 끼워질 수 있도록 상면에 제1 연결선 수용홈(135)이 형성된다.In addition, the fixing washer 130 has a first connection line receiving groove 135 formed on an upper surface thereof so that the connection line 200 may be fitted through the side opening of the fastening nut 120 on the upper surface in contact with the pressure plate 150.
가압판(150)은 체결 너트(120)의 고정 와셔(130)와 체결 볼트(140) 사이에 개재되며, 고정 와셔(130)의 상면과 접하는 하면에 제1 연결선 삽입홈(135)과 대응되게 제2 연결선 삽입홈(151)이 형성된다. The pressure plate 150 is interposed between the fixing washer 130 and the fastening bolt 140 of the fastening nut 120, and is formed to correspond to the first connection line insertion groove 135 on the lower surface of the fixing washer 130. 2 connecting line insertion groove 151 is formed.
체결 볼트(140)는 체결 너트(120)의 상측에 형성된 암나사부(124)에 끼워져 나사 결합되게 외주면 상에 수나사부(141)가 형성되고, 공구를 이용해 체결 볼트(140)를 조일 수 있게 상면에 볼트 공구홈(142)이 형성된다. The fastening bolt 140 is inserted into the female screw part 124 formed on the upper side of the fastening nut 120, and a male screw part 141 is formed on the outer circumferential surface to be screwed thereon, and an upper surface to tighten the fastening bolt 140 using a tool. The bolt tool groove 142 is formed in the.
따라서 체결 볼트(140)가 체결 너트(120)의 암사나부(124)에 끼워져 나사 체결되면서 가압판(150)을 하측으로 밀어, 결국 체결 너트(140)의 측면 개방부를 통해 고정 와셔(130)의 연결선 삽입홈(135)에 끼워진 연결선(200)을 가압판(150)의 연결선 가압 돌기(151)로 눌러 고정하도록 한다. Therefore, the fastening bolt 140 is inserted into the female threaded portion 124 of the fastening nut 120 and screwed to push the pressure plate 150 downward, and eventually, the connection line of the fixing washer 130 through the side opening of the fastening nut 140. The connection line 200 inserted into the insertion groove 135 is fixed by pressing the connection line pressing protrusion 151 of the pressure plate 150.
다시 도 1 및 도 2를 참조하여 설명하면, 연결선(200)은 척추 고정 나사(100)에 끼워져 고정되며 인접하는 2개의 척추 고정 나사(100)들을 서로 연결하도록 한다.Referring to FIGS. 1 and 2 again, the connection line 200 is inserted into and fixed to the spinal fixation screw 100 and connects two adjacent spinal fixation screws 100 to each other.
본 실시예에서 연결선(200)은 척추 고정 나사(100)들 사이에 끼워져 고정되는 탄성판(300)들을 끼워 고정할 수 있도록 기설정된 강성을 가지는 폴리 에틸렌(PE: Poly Ethylene) 재질로 이루어지는 것을 예시한다. In this embodiment, the connection line 200 is made of a polyethylene (PE: Poly Ethylene) material having a predetermined rigidity to be fixed by inserting the elastic plate 300 is inserted between and fixed between the spinal fixing screws 100 do.
또한, 본 실시예에서는 연결선(200)이 척추 뼈에 고정되는 2개의 척추 고정 나사(100)들 사이를 연결하도록 하는 것을 예시하고 있으나, 본 발명이 이에 반드시 한정되는 것은 아니며 연결선(200)에 의해 연속하는 2개 이상의 척추 고정 나사(100)들을 서로 연결할 수 있음은 당연하다. In addition, the present embodiment illustrates that the connection line 200 is to be connected between the two spinal fixing screws 100 that are fixed to the vertebral bone, but the present invention is not necessarily limited thereto and by the connection line 200 Naturally, two or more consecutive spinal fixation screws 100 may be connected to each other.
탄성판(300)들은 중심부를 관통하는 연결 통공(320)을 통과해 끼워지는 연결선(200)에 의해 척추 고정 나사(100)들 사이에 서로 압착되며 고정되어, 본 실시예의 척추 고정 장치(1)에 의해 척추 뼈들이 기설정된 간격을 유지하며 바르게 고정될 수 있도록 척추 고정 나사(100)들을 서로 이격시키는 방향으로 탄성을 제공한다. The elastic plates 300 are compressed and fixed to each other between the spinal fixation screws 100 by a connecting line 200 inserted through a connecting hole 320 passing through a central portion thereof, and thus, the spinal fixing device 1 of the present embodiment. By providing the elasticity in the direction in which the vertebral fixation screws 100 are spaced from each other so that the vertebral bones can be properly fixed at a predetermined interval.
한편, 본 실시예에서 탄성판(300)은 폴리 카본 우레탄(PCU: Poly Carbon Urethane) 재질로 이루어지며, 기설정 두께를 가지는 원판 형상 즉, 도우넛 형상으로 이루어지는 것을 예시한다. On the other hand, the elastic plate 300 in the present embodiment is made of a poly carbon urethane (PCU: Poly Carbon Urethane) material, it illustrates that the disk shape having a predetermined thickness, that is, made of a doughnut shape.
여기서, 탄성판(300)들이 소정의 두께를 가지는 판상형으로 서로 분할되어 이루어짐에 따라, 종래 척추 고정 나사(100)들 사이에서 하나의 통형상으로 이루어지는 탄성체와 비교해 좀더 자유롭게 환자기 척추 뼈를 움직일 수 있도록 한다. Here, as the elastic plate 300 is divided into each other in a plate shape having a predetermined thickness, the spine bones of the patient can be moved more freely than the conventional elastic body made of one tubular shape between the conventional spinal fixation screws 100. Make sure
특히, 탄성판(100)들의 원판형상의 양측 가장자리를 부드러운 곡선 형태로 모따기시켜 라운드부(310)를 가지는 도우넛 형상으로 형성함으로써, 환자가 허리를 굽히는 등의 벤딩 과정에서 연결선(200)에 의해 척추 고정 나사(100)들 사이에 끼워져 고정된 탄성판(300)들의 벤딩이 좀더 자유롭게 이루어질 수 있게 된다.In particular, by chamfering both side edges of the disc-shaped elastic plate 100 in a smooth curved form to form a doughnut shape having a round portion 310, the spine by the connecting line 200 in the bending process, such as the patient bends back Bending of the elastic plates 300 fixed between the fixing screws 100 may be more freely performed.
그러나 본 발명이 이에 반드시 한정되는 것은 아니며 탄성판(300)들을 다양한 크기(직경), 재질 및 탄성도를 조절하여 환자의 체중에 따라 척추 운동에 대한 최적의 자유도를 갖도록 구성할 수도 있다. 일례로, 탄성판(300)의 직경을 7mm, 8mm, 또는 9mm로 서로 다르게 형성함으로써 이들 직경차에 의한 탄성도를 서로 다르게 구성하여, 환자의 체중에 따라 좀더 적합한 탄성판을 선택하여 사용할 수 있도록 할 수 있다. However, the present invention is not necessarily limited thereto, and the elastic plates 300 may be configured to have optimal degrees of freedom for spinal motion according to the weight of the patient by adjusting various sizes (diameters), materials, and elasticity. For example, by forming the diameter of the elastic plate 300 differently to 7mm, 8mm, or 9mm to configure the elasticity due to these diameters differently, so as to select and use a more suitable elastic plate according to the weight of the patient can do.
이하, 본 발명의 제2 실시예에 따른 척추 고정 장치를 도 5를 참조하여 설명하며, 상기한 제1 실시예와 비교하여 동일 및 유사한 구성에 대해서는 동일 참조부호를 사용하고 이에 대해 중복되는 설명은 생략한다. Hereinafter, a spinal fixation apparatus according to a second embodiment of the present invention will be described with reference to FIG. 5, and the same reference numerals are used for the same and similar configurations as compared with the first embodiment, and the descriptions thereof will be redundant. Omit.
도 5는 본 발명의 제2 실시예에 따른 척추 고정 장치를 도시한 측단면도이다. Figure 5 is a side cross-sectional view showing a spinal fixation apparatus according to a second embodiment of the present invention.
도 5를 참조하여 설명하면, 본 실시예에 따른 척추 고정 장치는, 상기한 제1 실시예와 비교하여, 척추 고정 나사(100)가 박혀 고정되는 척추 뼈(500)의 표면 형상에 따라 척추 고정 나사(100)를 안착시키기 위한 안착 고정 와셔(400)를 더 포함하여 구성되는 차이를 가진다. Referring to Figure 5, compared with the first embodiment described above, the spinal fixation device, the spinal fixation according to the surface shape of the vertebral bone 500 in which the spinal fixation screw 100 is embedded and fixed There is a difference configured to further comprise a seating washer 400 for seating the screw 100.
여기서, 안착 고정 와셔(400)는 하면(401)이 척추뼈의 표면 형상에 대응되게 형성되고, 척추 고정 나사(100)의 나사봉이 관통하도록 중심부에 나사봉 통공(402)이 형성되며, 상면(403)에서 와셔 통공 주위로 척추 고정 나사(100)의 체결 너트 (120) 하부가 면접촉하며 끼워지도록 체결 너트 안착홈(404)이 형성된다. Here, the seat fixing washer 400 has a lower surface 401 is formed to correspond to the surface shape of the vertebra, the screw rod through hole 402 is formed in the center so that the screw rod of the spinal fixing screw 100, the upper surface ( At 403, a fastening nut seating groove 404 is formed to be fitted with the bottom of the fastening nut 120 of the spinal fixation screw 100 in surface contact with the washer through-hole.
따라서, 안착 고정 와셔(400)는 척추 고정 나사(100)를 척추 뼈(500)에 박아 고정시 척추 고정 나사(100)의 체결 너트(120)의 하부면과 척추 뼈(500) 표면 사이가 들뜨지 않고 좀더 안전하게 안착될 수 있도록 한다.Accordingly, the seating washer 400 is driven between the lower surface of the fastening nut 120 of the spinal fixation screw 100 and the surface of the spinal bone 500 when the fixation screw 100 is driven into the vertebral bone 500. To make it more secure.
또한, 안착 고정 와셔(400)의 하면(401) 가장자리를 따라 척추 뼈(500)에 박혀 고정되도록 다수의 안착 돌기(405)가 돌출되어 형성되는 것이 바람직하다.In addition, it is preferable that a plurality of seating protrusions 405 are formed to protrude so as to be embedded in the vertebral bone 500 along the edge of the bottom surface 401 of the seating washer 400.
이처럼, 안착 고정 와셔(400)가 안착 돌기(405)에 의해 척추 뼈(500)에 박혀 고정됨에 따라, 환자의 척추 운동 과정에 의해 척추 뼈(500)에 박혀 고정된 척추 고정 나사(100)가 풀리는 것을 방지할 수 있다. As such, as the seat fixing washer 400 is fixed to the vertebral bone 500 by the seating protrusion 405, the vertebral fixation screw 100 embedded in the vertebral bone 500 is fixed by the spine movement process of the patient. It can be prevented from loosening.
이상을 통해 본 발명의 바람직한 실시예에 대하여 설명하였지만, 본 발명은 이에 한정되는 것이 아니고 특허청구범위와 발명의 상세한 설명 및 첨부한 도면의 범위 안에서 여러 가지로 변형 또는 변경하여 실시하는 것이 가능하고 이 또한 본 발명의 범위에 속하는 것은 당연하다. Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications or changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. In addition, it is natural that it belongs to the scope of the present invention.
<부호의 설명><Description of the code>
1: 척추 고정 장치 100: 척추 고정 나사1: spinal fixation device 100: spinal fixation screw
110: 나사봉 111: 나사부110: screw rod 111: screw portion
115: 해드부 116: 봉공구홈115: head 116: sewing tool groove
120: 체결 너트 121: 해드 안착부120: fastening nut 121: head seat
122: 와셔 고정부 124: 암나사부122: washer fixing part 124: female thread part
130: 고정 와셔 131: 와셔 체결홈130: fixing washer 131: washer fastening groove
132: 새들부 133: 관통공132: saddle 133: through hole
135: 제1 연결선 수용홈 140: 체결 볼트135: first connecting line receiving groove 140: fastening bolt
141: 수나사부 142: 볼트 공구홈141: male thread 142: bolt tool groove
150: 가압판 151: 제1 연결선 수용홈150: pressure plate 151: first connecting line receiving groove
200: 연결선 300: 탄성판200: connecting line 300: elastic plate
310: 라운딩부 320: 연결 통공310: rounding part 320: connection through hole
400: 안착 고정 와셔 401: 하면400: mounting fixing washer 401: lower surface
402: 나사봉 통공 403: 상면402: screw rod through hole 403: top surface
404: 체결 너트 안착홈 405: 안착 돌기404: fastening nut seating groove 405: seating projection

Claims (10)

  1. 척추 뼈에 고정되는 척추 고정 나사;Spinal fixation screws fixed to the vertebral bones;
    상기 척추 고정 나사에 끼워져 고정되며, 인접하는 상기 척추 고정 나사들을 서로 연결하는 연결선; 및A connection line inserted into and fixed to the spinal fixation screw and connecting the adjacent spinal fixation screws to each other; And
    상기 연결선에 꿰어져 상기 척추 고정 나사들 사이에서 서로 압착되며 끼워져 고정되는 다수의 탄성판;들을 포함하는 척추 고정 장치. And a plurality of elastic plates that are threaded by the connection line and are compressed and fitted to each other between the spinal fixation screws.
  2. 제1항에서, In claim 1,
    상기 척추 고정 나사는, The spinal fixation screw,
    상기 척추 뼈에 고정되는 나사부의 상단에 구형상의 해드부가 형성되는 나사봉; A screw rod having a spherical head portion formed on an upper end of the screw portion fixed to the vertebral bone;
    상기 나사봉의 해드부가 면접촉하도록 끼워져 안착되는 해드 안착부가 하측에 형성되는 체결 너트; A fastening nut formed at a lower side of the head seating portion to which the head portion of the screw rod is inserted into surface contact;
    상기 체결 너트의 해드 안착부 상측에 형성되는 와셔 고정부에 끼워져 고정되며, 상기 나사봉의 해드부를 상기 체결 너트의 해드 안착부 내에 구속하는 고정 와셔;A fixing washer inserted into and fixed to a washer fixing portion formed above the head seating portion of the fastening nut, the fixing washer restraining the head portion of the screw rod in the head seating portion of the fastening nut;
    상기 체결 너트의 와셔 고정부 상측에 형성되는 암나사부에 끼워져 나사 결합되며, 상기 체결 너트의 측면 개방부를 통해 상기 고정 와셔와의 사이로 삽입된 상기 연결선을 조여 고정하는 체결 볼트를 포함하는 척추 고정 장치.And a fastening bolt inserted into a female screw part formed on an upper side of a washer fixing part of the fastening nut, and a fastening bolt for tightening and fastening the connecting line inserted between the fastening washer and the fixing washer.
  3. 제2항에서, In claim 2,
    상기 고정 와셔는, The fixing washer,
    상기 나사봉의 해드부 상부에 면접촉하도록 돌출 형성되는 새들부와, 중심를 수직 관통하며 상기 나사봉의 해드부 상단에 형성되는 봉공구홈이 노출되게 관통공이 형성되는 척추 고정 장치. The through-hole is formed so that the through-hole is formed so that the saddle portion protruding in the surface contact with the top of the head portion of the screw rod, the through-hole is formed vertically through the center of the head portion of the screw rod.
  4. 제2항에서,In claim 2,
    상기 체결 너트의 상기 고정 와셔와 상기 체결 볼트 사이에 개재되는 가압판을 더 포함하는 척추 고정 장치. And a pressure plate interposed between the fixing washer of the fastening nut and the fastening bolt.
  5. 제4항에서,In claim 4,
    상기 고정 와셔의 상면에 상기 연결선이 끼워지는 제1 연결선 수용홈이 형성되고,A first connecting line receiving groove is formed on the top surface of the fixing washer to which the connecting line is fitted.
    상기 고정 와셔의 상면과 접하는 상기 가압판의 하면에 상기 제1 연결선 삽입홈에 대응되게 제2 연결선 수용홈이 형성되는 척추 고정 장치.And a second connection line receiving groove formed on a bottom surface of the pressure plate in contact with an upper surface of the fixing washer to correspond to the first connection line insertion groove.
  6. 제2항에서,In claim 2,
    상기 척추 고정 나사가 박혀 고정되는 상기 척추 뼈의 표면 형상에 따라 상기 척추 고정 나사를 안착시키는 안착 고정 와셔를 더 포함하고, And a seat fixing washer for seating the spinal fixation screw according to the surface shape of the vertebral bone to which the spinal fixation screw is embedded.
    상기 안착 고정 와서는, Come to rest the seating,
    하면이 상기 척추뼈의 표면 형상에 대응되게 형성되고, The lower surface is formed to correspond to the surface shape of the vertebrae,
    상기 척추 고정 나사의 나사봉이 관통하도록 중심부에 나사봉 통공이 형성되며, A screw rod through-hole is formed in the center so that the screw rod of the spinal screw is penetrated,
    상면에서 와셔 통공 주위로 상기 척추 고정 나사의 체결 너트 하부가 면접촉하며 끼워지도록 체결 너트 안착홈이 형성되는 척추 고정 장치.And a fastening nut seating groove is formed in such a manner that a bottom of the fastening nut of the spinal screw is inserted into a surface contact with the washer through the washer.
  7. 제6항에서,In claim 6,
    상기 완착 와셔의 하면 가장 자리를 따라 상기 척추뼈에 박혀 고정되도록 고정 돌기가 돌출 형성되는 척추 고정 장치. And a fixing protrusion protruding to be fixed to the vertebrae along the lower edge of the complete washer.
  8. 제1항에서,In claim 1,
    상기 탄성판은, The elastic plate,
    기설정된 두께를 가지는 원판형으로 이루어지고, 측면 가장자리가 라운드지게 형성되는 척추 고정 장치.Spinal fixation device is made of a disk having a predetermined thickness, the side edges are formed round.
  9. 제1항에서, In claim 1,
    상기 탄성판은 폴리 카본 우레탄(PCU: Poly Carbon Urethane) 재질로 이루어지는 척추 고정 장치.The elastic plate is a spinal fixing device made of Poly Carbon Urethane (PCU) material.
  10. 제1항에서, In claim 1,
    상기 연결선은 폴리 에틸렌(PE: Poly Ethylene) 재질로 이루어지는 척추 고정 장치.The connecting line is a spinal fixing device made of polyethylene (PE: Poly Ethylene) material.
PCT/KR2010/003621 2010-05-18 2010-06-07 Spinal fixation apparatus WO2011145771A1 (en)

Applications Claiming Priority (2)

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KR10-2010-0046443 2010-05-18
KR20100046443A KR101196776B1 (en) 2010-05-18 2010-05-18 Device for fixing vertebra

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WO2011145771A1 true WO2011145771A1 (en) 2011-11-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200395380Y1 (en) * 2005-06-30 2005-09-08 정연문 Screw fixation device for Operation of Spine disease
KR100704151B1 (en) * 2005-05-20 2007-04-06 주식회사 솔고 바이오메디칼 Spinal Fixation Flexible Rod And Spinal Fixation Method Using Thereof
KR100741293B1 (en) * 2005-08-30 2007-07-23 주식회사 솔고 바이오메디칼 Spinal Pedicle Screw
KR100915140B1 (en) * 2008-12-31 2009-09-03 주식회사 디오메디칼 Spinal fixation device reinforced breakaway prevention and binding effect

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100704151B1 (en) * 2005-05-20 2007-04-06 주식회사 솔고 바이오메디칼 Spinal Fixation Flexible Rod And Spinal Fixation Method Using Thereof
KR200395380Y1 (en) * 2005-06-30 2005-09-08 정연문 Screw fixation device for Operation of Spine disease
KR100741293B1 (en) * 2005-08-30 2007-07-23 주식회사 솔고 바이오메디칼 Spinal Pedicle Screw
KR100915140B1 (en) * 2008-12-31 2009-09-03 주식회사 디오메디칼 Spinal fixation device reinforced breakaway prevention and binding effect

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KR20110126916A (en) 2011-11-24

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