WO2015041486A1 - Bone plate and bone plate system using same - Google Patents

Bone plate and bone plate system using same Download PDF

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Publication number
WO2015041486A1
WO2015041486A1 PCT/KR2014/008764 KR2014008764W WO2015041486A1 WO 2015041486 A1 WO2015041486 A1 WO 2015041486A1 KR 2014008764 W KR2014008764 W KR 2014008764W WO 2015041486 A1 WO2015041486 A1 WO 2015041486A1
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Prior art keywords
screw
female screw
female
bone
bone plate
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PCT/KR2014/008764
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French (fr)
Korean (ko)
Inventor
김찬봉
서장현
배현국
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주식회사 제일메디칼코퍼레이션
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Publication of WO2015041486A1 publication Critical patent/WO2015041486A1/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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
    • 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
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • 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
    • 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
    • A61B17/82—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for bone cerclage
    • 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

Definitions

  • the present invention relates to a bone plate, and more particularly to a bone plate and a bone plate system using the same, which can selectively use heterogeneous locking screws.
  • the bone plate system facilitates treatment by pressing bone fragments (bone fragments) for fracture treatment and pulling the bone fragments in close contact with each other.
  • the bone plate system includes a bone plate and a bone screw.
  • the plate may include a hole in which an internal thread is formed and a hole in which the internal thread is not formed.
  • the screw includes a locking screw in which an external thread is formed in the head and a non-locking screw in which the external thread is not formed in the head. Both the locking and non-locking screws have shafts with male threads formed to engage the bones.
  • the locking screw may be coupled to the female screw of the bone plate formed on the head to fix the angle at which the screw shaft is coupled to the bone.
  • the central axis of the locking screw is coupled to be coaxial with the central axis of the internal thread. It is also possible to prevent loosening or loosening of the screw coupled to the bone by the dynamic load acting on the bone fragments and the bone plate after the surgery.
  • the male thread of the non-locking screw can be coupled to the bone at various angles. However, the non-locking screw is not fixed to the bone plate because no male thread is formed in the head.
  • the conventional bone plate system as described above is configured to fasten only one type of locking screw to the female screw of the bone plate, the surgeon may use a different type of locking screw depending on the condition of the bone fragments, the coupling force of the locking screw, and the like. There is no problem. Therefore, there is a need for a bone plate system in which a surgeon can conveniently select and operate a type of screw according to the purpose of treatment.
  • the present invention is to solve various problems of the conventional bone plate system as described above. It is an object of the present invention to provide a new bone plate and a bone plate system using the same that can selectively combine heterogeneous locking screws in one locking hole as needed.
  • a bone plate system is provided.
  • the bone plate system according to the present invention has one or more locking holes, which are formed so as to penetrate the upper surface, the lower surface facing the bone, and the upper and lower surfaces, and the first and second female threads are formed on the upper and lower portions, respectively.
  • the inner diameter of the first female screw is larger than the inner diameter of the second female screw so as to selectively couple the heterogeneous locking screws to each of the first and second female screws.
  • the bone plate system is configured to penetrate the upper surface, the lower surface facing the bone, the upper surface and the lower surface, and at least one locking hole in which the first and second female threads are formed at the upper and lower portions, respectively.
  • an inner diameter of the first female screw is greater than an inner diameter of the second female screw;
  • a first locking screw having a first male screw fastened to the first female screw and a second male screw fastened to the bone through the second female screw;
  • a second locking screw having a third male screw fastened to the second female screw and a fourth male screw fastened to the bone through the second female screw.
  • the surgeon can efficiently perform the fracture treatment.
  • FIG. 1 is a perspective view showing the configuration of the bone plate system according to the present invention.
  • FIG. 2 is a plan view showing the configuration of the bone plate system according to the present invention.
  • FIG. 3 is a cross-sectional view showing the configuration of the bone plate system according to the present invention.
  • FIG. 4 is a cross-sectional view of the bone plate in the bone plate system according to the present invention.
  • FIG. 5 is a schematic view showing a step of processing the locking hole shown in FIG. 4.
  • FIG. 5 is a schematic view showing a step of processing the locking hole shown in FIG. 4.
  • FIG. 6 is a front view showing the configuration of the first and second locking screws in the bone plate system according to the present invention.
  • the bone plate system 10 includes a bone plate 20.
  • the bone plate 20 is a material having not only excellent mechanical properties but also biocompatibility and biofuntionability for maintaining a stable function in vivo for the treatment of fractures, for example, titanium. It is preferably prepared as, but is not limited thereto.
  • the bone plate 20 has an upper surface 22, a lower surface 24 disposed toward the bone 2 and a plurality of locking holes 30.
  • the locking holes 30 are first and second holes 32 and 34 which are formed to penetrate the upper surface 22 and the lower surface 24 along the center axis line C 1 , and the first and second holes.
  • the first and second female threads 40 and 42 are formed in the two holes 32 and 34, respectively.
  • the first hole 32 and the second hole 34 are aligned with the central axis C.
  • Each of the minor diameter (d 1 ) and the major diameter (d 2 ) of the first female thread 40 is larger than the inner diameter (d 3 ) and the rib diameter (d 4 ) of the second female thread 42. have.
  • Each of the first and second female threads 40 and 42 of the present embodiment is composed of two threads, but may be composed of one thread.
  • the bone plate 20 is shown in Figure 1 is configured in a straight form, this is exemplary, the bone plate 20 may be manufactured in various shapes and structures to be suitable for the treatment of fractures.
  • the bone plate 20 may be concave bent (Banding) the lower surface 24 with respect to the longitudinal axis to better adhere to the bone (2).
  • the edge of the plate 20 is formed in a curved shape whose thickness is gradually thinned to reduce the foreign body feeling of the surgical site, and to prevent secondary damage such as inflammation after the procedure.
  • the first hole 32 is formed in the upper portion of the bone plate 20 so as to penetrate the upper surface 22.
  • the diameter d 5 of the first hole 32 is equal to the inner diameter d 1 of the first female screw 40.
  • a first taper hole 36 is formed in the upper portion of the first hole 32.
  • the second hole 34 penetrates the lower surface 24 so as to communicate with the first hole 32.
  • the first hole 32 and the second hole 34 are connected by a second taper hole 38.
  • the diameter d 6 of the second hole 34 is equal to the inner diameter d 3 of the second female thread 42.
  • Each of the first and second taper holes 36 and 38 is formed by countersinking.
  • the first female screw 40 is formed on the inner circumferential surface of the first hole 32.
  • the second female screw 42 is formed on the inner circumferential surface of the second hole 34.
  • the pitches of the first and second female threads 40, 42 may be the same or different.
  • the bone plate system 10 has a first locking screw 50 coupled to the first female thread 40 of the bone plate 20.
  • the first locking screw 50 has a head 52 and a shaft 54 extending along the axial direction from the head 52.
  • the first locking screw 50 can be made of titanium as with the bone plate 20.
  • a tool for example a driver
  • the upper surface 56 of the head 52 may be configured as a round head formed in a round.
  • a first male thread 60 is formed in the head 52 for fastening with the first female thread 40.
  • Maximum major diameter (D 1 ) of the first male thread (60) that is, the diameter of the head 52 is smaller than the bone diameter (d 2 ) of the first female thread (40), the diameter of the second female thread (42) It is larger than the valley diameter d 4 .
  • the first male thread 60 is formed by two rows of screws for fastening with the first female thread 40.
  • the second male screw 62 is formed along the outer circumferential surface of the shaft 54 so as to be coupled to the bone 2.
  • the maximum outer diameter D 2 of the second male screw 62 is formed smaller than the inner diameter d 3 of the second female screw 42.
  • a flute 64 is formed at the tip of the shaft 54 to enable self-tapping or self-drilling.
  • the bone plate system 10 has a second locking screw 70 which is coupled to the second female screw 42 of the bone plate 20.
  • the second locking screw 70 has a recess 78 formed in the head 72, the shaft 74, and the upper surface 76 of the head 72, similarly to the first locking screw 50.
  • a third male thread 80 is formed in the head 72 for fastening with the second female thread 42.
  • Third maximum outer diameter of the male thread (80), (D 3), i.e. the diameter of the head 72 is bone diameter of the second female screw 42 bone diameter (d 3) smaller, the second female thread (42) of (d It is formed smaller than 4 ).
  • the third male screw 80 is formed with two rows of screws for fastening with the second female screw 42.
  • the second male screw 80 is formed along the outer circumferential surface of the shaft 72 so as to be coupled to the bone 2.
  • the maximum outer diameter D 4 of the fourth male screw 82 is formed smaller than the inner diameter d 3 of the second female screw 42.
  • Flute 222 is formed at the tip of shaft 704 to allow self tapping or self drilling.
  • the surgeon may use the first locking screw 50 or the first locking screw 50 in the locking hole 30 of the bone plate 20 according to the condition of the bone fragment during treatment of the fracture.
  • the two locking screws 70 can be selectively coupled. For example, when the bone fragment is large in size or requires a large coupling force, the surgeon may fasten the first male thread 60 of the first locking screw 50 to the first female thread 40 of the bone plate 20. At this time, the second male screw 62 is fastened to the bone 2 by passing through the first and second female screws 40 and 42. When the engagement of the first locking screw 50 is completed, the head 52 is immersed in the first taper hole 36.
  • the surgeon may fasten the third male thread 80 of the first locking screw 50 to the second female thread 42 of the bone plate 20.
  • the third male screw 80 is not fastened to the first female screw 40 but passes through the first female screw 40 and is fastened to the second female screw 42.
  • the fourth male screw 82 is fastened to the bone 2 through the first and second female threads 40 and 42.
  • the present invention may be configured such that three or more female screws having different diameters are formed in one locking hole so that any one of the three locking screws having different diameters can be selectively fastened to one locking hole. Therefore, the scope of the present invention should not be construed as limited to the embodiments, but should be interpreted by the claims.

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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)
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Abstract

Disclosed are a bone plate capable of selectively using different locking screws, and a bone plate system using the same. The bone plate system of the present invention comprises a bone plate, a first locking screw, and a second locking screw. The bone plate comprises: an upper side; a lower side facing the bone; and one or more locking holes which are formed so as to penetrate the upper side and the lower side, and which have a first female screw and a second female screw formed in each of the upper and lower parts thereof, wherein an inner diameter of the first female screw is larger than an inner diameter of the second female screw. The first locking screw comprises: a first male screw coupled to the first female screw; and a second male screw coupled to the bone by passing through the second female screw. The second locking screw comprises: a third male screw coupled to the second female screw; and a fourth male screw coupled to the bone by passing through the second female screw. According to the present invention, different locking screws are used by being simply and selectively coupled to one locking hole in accordance with circumstances such that a surgeon can efficiently carry out fracture surgery.

Description

본 플레이트 및 이것을 이용한 본 플레이트 시스템Bone Plates and Bone Plate Systems Using the Same
본 발명은 본 플레이트에 관한 것으로, 보다 상세하게는 이종의 로킹 스크루(Locking screw)들을 선택적으로 사용할 수 있는 본 플레이트 및 이것을 이용한 본 플레이트 시스템에 관한 것이다.The present invention relates to a bone plate, and more particularly to a bone plate and a bone plate system using the same, which can selectively use heterogeneous locking screws.
본 플레이트 시스템은 골절 치료를 위하여 골절되어 있는 골편(Bone fragment, 뼛조각)들을 압박하고, 골편들이 서로 밀착되도록 당겨서 치료를 촉진시킨다. 본 플레이트 시스템은 본 플레이트와 본 스크루(Bone screw)를 포함한다. 본 플레이트는 암나사(Internal thread)가 형성되어 있는 구멍과 암나사가 형성되어 있지 않은 구멍을 포함할 수 있다. 본 스크루는 헤드(Head)에 수나사(External thread)가 형성되어 있는 로킹 스크루와 헤드에 수나사가 형성되어 있지 않은 논로킹 스크루(Non-locking screw)가 있다. 로킹 및 논로킹 스크루는 모두 뼈에 결합할 수 있도록 수나사가 형성되어 있는 샤프트(Shaft)를 구비한다. The bone plate system facilitates treatment by pressing bone fragments (bone fragments) for fracture treatment and pulling the bone fragments in close contact with each other. The bone plate system includes a bone plate and a bone screw. The plate may include a hole in which an internal thread is formed and a hole in which the internal thread is not formed. The screw includes a locking screw in which an external thread is formed in the head and a non-locking screw in which the external thread is not formed in the head. Both the locking and non-locking screws have shafts with male threads formed to engage the bones.
로킹 스크루는 헤드에 형성되어 있는 수나사가 본 플레이트의 암나사에 결합되어 스크루의 샤프트가 뼈에 결합되는 각도를 고정할 수 있다. 로킹 스크루의 중심축선은 암나사의 중심축선과 동축이 되도록 결합된다. 또한의 수술 후에 골편들과 본 플레이트에 작용하는 동적하중에 의하여 뼈에 결합된 스크루가 풀리거나 느슨해지는 것을 방지할 수 있다. 논로킹 스크루의 수나사는 다양한 각도로 뼈에 결합될 수 있다. 그러나 논로킹 스크루는 헤드에 수나사가 형성되어 있지 않아서 본 플레이트에 고정되지 않는다. The locking screw may be coupled to the female screw of the bone plate formed on the head to fix the angle at which the screw shaft is coupled to the bone. The central axis of the locking screw is coupled to be coaxial with the central axis of the internal thread. It is also possible to prevent loosening or loosening of the screw coupled to the bone by the dynamic load acting on the bone fragments and the bone plate after the surgery. The male thread of the non-locking screw can be coupled to the bone at various angles. However, the non-locking screw is not fixed to the bone plate because no male thread is formed in the head.
이러한 본 플레이트 및 본 플레이트 시스템은 골절의 치료에 적합하도록 다양한 형태와 구조로 제조되어 있으며, 미국 특허 제6,669,701호, PCT 국제출원 국제공개번호 WO 2009/023666호 등 많은 특허 문헌들에서 쉽게 찾아볼 수 있다. 이 특허 문허들은 암나사가 형성되어 있는 로킹 구멍을 갖는 본 플레이트와, 암나사에 체결되는 로킹 스크루를 개시하고 있다.These bone plates and bone plate systems are manufactured in various shapes and structures to be suitable for the treatment of fractures, and are easily found in many patent documents such as US Patent No. 6,669,701 and PCT International Publication No. WO 2009/023666. have. These patents disclose bone plates having locking holes in which female threads are formed, and locking screws fastened to the female screws.
그러나 상기한 바와 같은 종래의 본 플레이트 시스템은 본 플레이트의 암나사에 한 종의 로킹 스크루만을 체결할 수 있도록 구성되어 있으므로, 외과의사가 골편의 상태, 로킹 스크루의 결합력 등에 따라 다른 종류의 로킹 스크루를 사용할 수 없는 문제가 있다. 따라서 외과의사가 치료의 목적에 따라 본 스크루의 종류를 편리하게 선택하여 수술할 수 있는 본 플레이트 시스템에 대한 요구가 있다. However, since the conventional bone plate system as described above is configured to fasten only one type of locking screw to the female screw of the bone plate, the surgeon may use a different type of locking screw depending on the condition of the bone fragments, the coupling force of the locking screw, and the like. There is no problem. Therefore, there is a need for a bone plate system in which a surgeon can conveniently select and operate a type of screw according to the purpose of treatment.
본 발명은 상기와 같은 종래 본 플레이트 시스템의 여러 가지 문제점들을 해결하기 위한 것이다. 본 발명의 목적은, 하나의 로킹 구멍에 이종의 로킹 스크루들를 필요에 따라 선택적으로 결합하여 사용할 수 있는 새로운 본 플레이트 및 이것을 이용한 본 플레이트 시스템을 제공하는 것이다.The present invention is to solve various problems of the conventional bone plate system as described above. It is an object of the present invention to provide a new bone plate and a bone plate system using the same that can selectively combine heterogeneous locking screws in one locking hole as needed.
본 발명의 일 측면에 따르면, 본 플레이트 시스템이 제공된다. 본 발명에 따른 본 플레이트 시스템은, 윗면과, 뼈를 향하는 아랫면과, 윗면과 아랫면을 관통하도록 형성되어 있으며 상부와 하부 각각에 제1 암나사와 제2 암나사가 형성되어 있는 하나 이상의 로킹 구멍을 구비하고, 제1 암나사와 제2 암나사 각각에 이종의 로킹 스크루들을 선택적으로 결합할 수 있도록 제1 암나사의 안지름은 제2 암나사의 안지름보다 크게 형성되어 있다. According to one aspect of the invention, a bone plate system is provided. The bone plate system according to the present invention has one or more locking holes, which are formed so as to penetrate the upper surface, the lower surface facing the bone, and the upper and lower surfaces, and the first and second female threads are formed on the upper and lower portions, respectively. The inner diameter of the first female screw is larger than the inner diameter of the second female screw so as to selectively couple the heterogeneous locking screws to each of the first and second female screws.
본 발명의 다른 측면에 따른 본 플레이트 시스템은, 윗면과, 뼈를 향하는 아랫면과, 윗면과 아랫면을 관통하도록 형성되어 있으며 상부와 하부 각각에 제1 암나사와 제2 암나사가 형성되어 있는 하나 이상의 로킹 구멍을 구비하고, 제1 암나사의 안지름은 제2 암나사의 안지름보다 크게 형성되어 있는 본 플레이트와; 제1 암나사에 체결되는 제1 수나사와, 제2 암나사를 통과하여 뼈에 체결되는 제2 수나사를 구비하는 제1 로킹 스크루와; 제2 암나사에 체결되는 제3 수나사와, 제2 암나사를 통과하여 뼈에 체결되는 제4 수나사를 구비하는 제2 로킹 스크루를 포함한다.According to another aspect of the present invention, the bone plate system is configured to penetrate the upper surface, the lower surface facing the bone, the upper surface and the lower surface, and at least one locking hole in which the first and second female threads are formed at the upper and lower portions, respectively. And an inner diameter of the first female screw is greater than an inner diameter of the second female screw; A first locking screw having a first male screw fastened to the first female screw and a second male screw fastened to the bone through the second female screw; And a second locking screw having a third male screw fastened to the second female screw and a fourth male screw fastened to the bone through the second female screw.
본 발명에 따른 본 플레이트 및 이것을 이용한 본 플레이트 시스템에 의하면, 하나의 로킹 구멍에 이종의 로킹 스크루들을 필요에 따라 간편하게 선택적으로 결합하여 사용할 수 있으므로, 외과의사는 골절 치료를 효율적으로 실시할 수 있다.According to the bone plate and the bone plate system using the same according to the present invention, since the heterogeneous locking screws can be conveniently combined with one locking hole as needed, the surgeon can efficiently perform the fracture treatment.
도 1은 본 발명에 따른 본 플레이트 시스템의 구성을 나타낸 사시도이다. 1 is a perspective view showing the configuration of the bone plate system according to the present invention.
도 2는 본 발명에 따른 본 플레이트 시스템의 구성을 나타낸 평면도이다.2 is a plan view showing the configuration of the bone plate system according to the present invention.
도 3은 본 발명에 따른 본 플레이트 시스템의 구성을 나타낸 단면도이다.3 is a cross-sectional view showing the configuration of the bone plate system according to the present invention.
도 4는 본 발명에 따른 본 플레이트 시스템에서 본 플레이트를 나타낸 단면도이다.4 is a cross-sectional view of the bone plate in the bone plate system according to the present invention.
도 5는 도 4에 보이는 로킹 구멍을 가공하는 공정을 나타내는 개략도이다.FIG. 5 is a schematic view showing a step of processing the locking hole shown in FIG. 4. FIG.
도 6은 본 발명에 따른 본 플레이트 시스템에서 제1 및 제2 로킹 스크루의 구성을 나타낸 정면도이다.6 is a front view showing the configuration of the first and second locking screws in the bone plate system according to the present invention.
본 발명의 그 밖의 목적, 특정한 장점들과 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예들로부터 더욱 분명해질 것이다.Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings.
이하, 본 발명에 따른 에 대한 바람직한 실시예들을 첨부된 도면들에 의거하여 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
먼저, 도 1을 참조하면, 본 발명에 따른 본 플레이트 시스템(10)은 본 플레이트(20)를 구비한다. 본 플레이트(20)는 골절의 치료를 위하여 생체 내에서 안정된 기능을 유지하기 위하여 기계적 특성이 우수할 뿐만 아니라, 생체적합성(Biocompatibility)과 생체기능성(Biofuntionability)을 갖는 재료, 예를 들면 티타늄(Titanium)으로 제조되는 것이 바람직하나, 이에 한정되는 것은 아니다. First, referring to FIG. 1, the bone plate system 10 according to the present invention includes a bone plate 20. The bone plate 20 is a material having not only excellent mechanical properties but also biocompatibility and biofuntionability for maintaining a stable function in vivo for the treatment of fractures, for example, titanium. It is preferably prepared as, but is not limited thereto.
본 플레이트(20)는 윗면(22), 뼈(2)를 향하여 배치되는 아랫면(24)과 복수의 로킹 구멍(30)들을 구비한다. 로킹 구멍(30)들은 중심축선(Center axis line: C1)을 따라 윗면(22)과 아랫면(24)을 관통하도록 형성되어 있는 제1 및 제2 구멍(32, 34)와, 제1 및 제2 구멍(32, 34) 각각에 형성되어 있는 제1 및 제2 암나사(40, 42)를 구비한다. 제1 구멍(32)과 제2 구멍(34)은 중심축선(C)에 정렬되어 있다. 제1 암나사(40)의 안지름(Minor diameter: d1)과 골지름(Major diameter: d2) 각각은 제2 암나사(42)의 안지름(d3)과 골지름(d4)보다 크게 구성되어 있다. 본 실시예의 제1 및 제2 암나사(40, 42) 각각은 두 줄 나사(Double thread)로 구성되어 있으나, 한 줄 나사로 구성될 수 있다. The bone plate 20 has an upper surface 22, a lower surface 24 disposed toward the bone 2 and a plurality of locking holes 30. The locking holes 30 are first and second holes 32 and 34 which are formed to penetrate the upper surface 22 and the lower surface 24 along the center axis line C 1 , and the first and second holes. The first and second female threads 40 and 42 are formed in the two holes 32 and 34, respectively. The first hole 32 and the second hole 34 are aligned with the central axis C. As shown in FIG. Each of the minor diameter (d 1 ) and the major diameter (d 2 ) of the first female thread 40 is larger than the inner diameter (d 3 ) and the rib diameter (d 4 ) of the second female thread 42. have. Each of the first and second female threads 40 and 42 of the present embodiment is composed of two threads, but may be composed of one thread.
도 1에 본 플레이트(20)는 직선 형태로 구성되어 있는 것이 도시되어 있으나, 이는 예시적인 것으로, 본 플레이트(20)는 골절의 치료에 적합하도록 다양한 형태와 구조로 제조될 수 있다. 또한, 본 플레이트(20)는 뼈(2)에 보다 잘 밀착되도록 길이 방향의 축선에 대하여 아랫면(24)이 오목하게 벤딩(Banding)될 수 있다. 본 플레이트(20)의 가장자리는 그 두께가 점진적으로 얇아지는 곡선 형상으로 형성되어 수술 부위의 이물감을 줄이고, 시술 후에 염증과 같은 이차 피해를 방지하도록 되어 있다. Although the bone plate 20 is shown in Figure 1 is configured in a straight form, this is exemplary, the bone plate 20 may be manufactured in various shapes and structures to be suitable for the treatment of fractures. In addition, the bone plate 20 may be concave bent (Banding) the lower surface 24 with respect to the longitudinal axis to better adhere to the bone (2). The edge of the plate 20 is formed in a curved shape whose thickness is gradually thinned to reduce the foreign body feeling of the surgical site, and to prevent secondary damage such as inflammation after the procedure.
도 5를 참조하여 로킹 구멍에서 구멍과 암나사에 대하여 보다 자세하게 설명한다. 도 5 (a)에 도시되어 있는 바와 같이, 제1 구멍(32)은 윗면(22)을 관통하도록 본 플레이트(20)의 상부에 형성되어 있다. 제1 구멍(32)의 직경(d5)은 제1 암나사(40)의 안지름(d1)과 동일하다. 제1 테이퍼 구멍(Taper hole: 36)이 제1 구멍(32)의 상부에 형성되어 있다. 제2 구멍(34)은 제1 구멍(32)과 연통되도록 아랫면(24)에 관통되어 있다. 제1 구멍(32)과 제2 구멍(34)은 제2 테이퍼 구멍(38)에 의하여 연결되어 있다. 제2 구멍(34)의 직경(d6)은 제2 암나사(42)의 안지름(d3)과 동일하다. 제1 및 제2 테이퍼 구멍(36, 38) 각각은 카운터싱킹(Countersinking)에 의하여 형성되어 있다. The hole and the female screw in the locking hole will be described in more detail with reference to FIG. 5. As shown in FIG. 5A, the first hole 32 is formed in the upper portion of the bone plate 20 so as to penetrate the upper surface 22. The diameter d 5 of the first hole 32 is equal to the inner diameter d 1 of the first female screw 40. A first taper hole 36 is formed in the upper portion of the first hole 32. The second hole 34 penetrates the lower surface 24 so as to communicate with the first hole 32. The first hole 32 and the second hole 34 are connected by a second taper hole 38. The diameter d 6 of the second hole 34 is equal to the inner diameter d 3 of the second female thread 42. Each of the first and second taper holes 36 and 38 is formed by countersinking.
도 5 (b)에 도시되어 있는 바와 같이, 제1 암나사(40)는 제1 구멍(32)의 내주면에 형성되어 있다. 도 5 (c)에 도시되어 있는 바와 같이, 제2 암나사(42)는 제2 구멍(34)의 내주면에 형성되어 있다. 몇몇 실시예에 있어서, 제1 및 제2 암나사(40, 42)의 피치(Pitch)는 동일하거나 서로 다르게 구성될 수 있다. As shown in FIG. 5B, the first female screw 40 is formed on the inner circumferential surface of the first hole 32. As shown in FIG. 5C, the second female screw 42 is formed on the inner circumferential surface of the second hole 34. In some embodiments, the pitches of the first and second female threads 40, 42 may be the same or different.
도 1과 도 2를 참조하면, 본 발명에 따른 본 플레이트 시스템(10)은 본 플레이트(20)의 제1 암나사(40)에 결합되는 제1 로킹 스크루(50)를 구비한다. 제1 로킹 스크루(50)는 헤드(52)와, 헤드(52)로부터 축선 방향을 따라 연장되어 있는 샤프트(54)를 구비한다. 제1 로킹 스크루(50)는 본 플레이트(20)와 마찬가지로 티타늄으로 제조될 수 있다. 1 and 2, the bone plate system 10 according to the present invention has a first locking screw 50 coupled to the first female thread 40 of the bone plate 20. The first locking screw 50 has a head 52 and a shaft 54 extending along the axial direction from the head 52. The first locking screw 50 can be made of titanium as with the bone plate 20.
헤드(52)의 윗면(56)에 제1 로킹 스크루(50)를 뼈(2)에 박아 넣거나 제1 암나사(40)에 체결하기 위한 공구(Tool), 예를 들면 드라이버를 수용하기 위한 리세스(Recess: 58)가 형성되어 있다. 헤드(52)의 윗면(56)은 라운드(Round)로 형성되어 있는 라운드 헤드(Round head)로 구성될 수 있다. 제1 암나사(40)와의 체결을 위하여 제1 수나사(60)가 헤드(52)에 형성되어 있다. 제1 수나사(60)의 최대바깥지름(Maximum major diameter: D1), 즉 헤드(52)의 지름은 제1 암나사(40)의 골지름(d2)보다 작고, 제2 암나사(42)의 골지름(d4)보다 크게 형성되어 있다. 본 실시예에 있어서, 제1 수나사(60)는 제1 암나사(40)와의 체결을 위하여 두 줄 나사로 형성되어 있다. 제2 수나사(62)가 뼈(2)에 결합할 수 있도록 샤프트(54)의 외주면을 따라 형성되어 있다. 제2 수나사(62)의 최대바깥지름(D2)은 제2 암나사(42)의 안지름(d3)보다 작게 형성되어 있다. 셀프 태핑(Self-tapping) 또는 셀프 드릴링(Self-drilling)이 가능하도록 플루트(Flute: 64)가 샤프트(54)의 선단부에 형성되어 있다. Recess for accommodating a tool, for example a driver, for driving the first locking screw 50 into the bone 2 or fastening to the first female screw 40 on the upper surface 56 of the head 52. (Recess: 58) is formed. The upper surface 56 of the head 52 may be configured as a round head formed in a round. A first male thread 60 is formed in the head 52 for fastening with the first female thread 40. Maximum major diameter (D 1 ) of the first male thread (60), that is, the diameter of the head 52 is smaller than the bone diameter (d 2 ) of the first female thread (40), the diameter of the second female thread (42) It is larger than the valley diameter d 4 . In the present embodiment, the first male thread 60 is formed by two rows of screws for fastening with the first female thread 40. The second male screw 62 is formed along the outer circumferential surface of the shaft 54 so as to be coupled to the bone 2. The maximum outer diameter D 2 of the second male screw 62 is formed smaller than the inner diameter d 3 of the second female screw 42. A flute 64 is formed at the tip of the shaft 54 to enable self-tapping or self-drilling.
본 발명에 따른 본 플레이트 시스템(10)은 본 플레이트(20)의 제2 암나사(42)에 결합되는 제2 로킹 스크루(70)를 구비한다. 제2 로킹 스크루(70)는 제1 로킹 스크루(50)와 마찬가지로 헤드(72), 샤프트(74), 헤드(72)의 윗면(76)에 형성되어 있는 리세스(78)를 구비한다. 제2 암나사(42)와의 체결을 위하여 제3 수나사(80)가 헤드(72)에 형성되어 있다. 제3 수나사(80)의 최대바깥지름(D3), 즉 헤드(72)의 지름은 제2 암나사(42)의 골지름(d3)보다 작고, 제2 암나사(42)의 골지름(d4)보다 작게 형성되어 있다. 본 실시예에 있어서, 제3 수나사(80)는 제2 암나사(42)와의 체결을 위하여 두 줄 나사로 형성되어 있다. 제2 수나사(80)가 뼈(2)에 결합할 수 있도록 샤프트(72)의 외주면을 따라 형성되어 있다. 제4 수나사(82)의 최대바깥지름(D4)은 제2 암나사(42)의 안지름(d3)보다 작게 형성되어 있다. 셀프 태핑 또는 셀프 드릴링이 가능하도록 플루트(222)가 샤프트(704)의 선단부에 형성되어 있다. The bone plate system 10 according to the invention has a second locking screw 70 which is coupled to the second female screw 42 of the bone plate 20. The second locking screw 70 has a recess 78 formed in the head 72, the shaft 74, and the upper surface 76 of the head 72, similarly to the first locking screw 50. A third male thread 80 is formed in the head 72 for fastening with the second female thread 42. Third maximum outer diameter of the male thread (80), (D 3), i.e. the diameter of the head 72 is bone diameter of the second female screw 42 bone diameter (d 3) smaller, the second female thread (42) of (d It is formed smaller than 4 ). In this embodiment, the third male screw 80 is formed with two rows of screws for fastening with the second female screw 42. The second male screw 80 is formed along the outer circumferential surface of the shaft 72 so as to be coupled to the bone 2. The maximum outer diameter D 4 of the fourth male screw 82 is formed smaller than the inner diameter d 3 of the second female screw 42. Flute 222 is formed at the tip of shaft 704 to allow self tapping or self drilling.
이와 같은 구성을 갖는 본 발명에 따른 본 플레이트 시스템(10)에 있어서, 외과의사는 골절의 치료 시 골편의 상태에 따라 본 플레이트(20)의 로킹 구멍(30)에 제1 로킹 스크루(50) 또는 제2 로킹 스크루(70)를 선택적으로 결합할 수 있다. 예컨대, 골편이 크기가 크거나 큰 결합력이 요구되는 경우, 외과의사는 제1 로킹 스크루(50)의 제1 수나사(60)를 본 플레이트(20)의 제1 암나사(40)에 체결할 수 있다. 이때, 제2 수나사(62)는 제1 및 제2 암나사(40, 42)를 통과하여 뼈(2)에 체결된다. 제1 로킹 스크루(50)의 결합이 완료되면, 헤드(52)는 제1 테이퍼 구멍(36) 안에 몰입되어 있게 된다.In the bone plate system 10 according to the present invention having such a configuration, the surgeon may use the first locking screw 50 or the first locking screw 50 in the locking hole 30 of the bone plate 20 according to the condition of the bone fragment during treatment of the fracture. The two locking screws 70 can be selectively coupled. For example, when the bone fragment is large in size or requires a large coupling force, the surgeon may fasten the first male thread 60 of the first locking screw 50 to the first female thread 40 of the bone plate 20. At this time, the second male screw 62 is fastened to the bone 2 by passing through the first and second female screws 40 and 42. When the engagement of the first locking screw 50 is completed, the head 52 is immersed in the first taper hole 36.
한편, 골편이 크기가 작거나 작은 결합력이 요구되는 경우, 외과의사는 제1 로킹 스크루(50)의 제3 수나사(80)를 본 플레이트(20)의 제2 암나사(42)에 체결할 수 있다. 이때, 제3 수나사(80)는 제1 암나사(40)에 체결되지 못하고 제1 암나사(40)를 통과하여 제2 암나사(42)에 체결된다. 제4 수나사(82)는 제1 및 제2 암나사(40, 42)를 통과하여 뼈(2)에 체결된다. 제2 로킹 스크루(70)의 결합이 완료되면, 헤드(72)는 제2 테이퍼 구멍(38) 안에 몰입되어 있게 된다. On the other hand, when the bone fragments are small in size or require a small coupling force, the surgeon may fasten the third male thread 80 of the first locking screw 50 to the second female thread 42 of the bone plate 20. At this time, the third male screw 80 is not fastened to the first female screw 40 but passes through the first female screw 40 and is fastened to the second female screw 42. The fourth male screw 82 is fastened to the bone 2 through the first and second female threads 40 and 42. When the engagement of the second locking screw 70 is completed, the head 72 is immersed in the second taper hole 38.
이상에서 설명된 실시예는 본 발명의 바람직한 실시예를 설명한 것에 불과하고, 본 발명의 권리범위는 설명된 실시예에 한정되는 것은 아니며, 본 발명의 기술적 사상과 특허청구범위 내에서 이 분야의 당업자에 의하여 다양한 변경, 변형 또는 치환이 가능할 것이며, 그와 같은 실시예들은 본 발명의 범위에 속하는 것으로 이해되어야 한다. 예컨대, 본 발명은 하나의 로킹 구멍에 직경이 서로 다른 세 개 이상의 암나사들이 형성되어 직경이 서로 다른 세 개의 로킹 스크루들 중 어느 하나가 하나의 로킹 구멍에 선택적으로 체결될 수 있도록 구성될 수도 있다. 따라서 본 발명의 권리범위는 실시예에 한정되어 해석되어서는 안 되며, 특허청구범위에 의해서 해석되어야 한다.The embodiments described above are merely illustrative of the preferred embodiments of the present invention, the scope of the present invention is not limited to the described embodiments, those skilled in the art within the spirit and claims of the present invention It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the invention. For example, the present invention may be configured such that three or more female screws having different diameters are formed in one locking hole so that any one of the three locking screws having different diameters can be selectively fastened to one locking hole. Therefore, the scope of the present invention should not be construed as limited to the embodiments, but should be interpreted by the claims.

Claims (5)

  1. 윗면과, 뼈를 향하는 아랫면과, 상기 윗면과 상기 아랫면을 관통하도록 형성되어 있으며 상부와 하부 각각에 제1 암나사와 제2 암나사가 형성되어 있는 하나 이상의 로킹 구멍을 구비하고, 상기 제1 암나사와 상기 제2 암나사 각각에 이종의 로킹 스크루들을 선택적으로 결합할 수 있도록 상기 제1 암나사의 안지름은 상기 제2 암나사의 안지름보다 크게 형성되어 있는 본 플레이트. An upper surface, a lower surface facing the bone, and one or more locking holes formed to penetrate the upper surface and the lower surface, the first and second female threads being formed on the upper and lower portions, respectively; The inner diameter of the first female screw is larger than the inner diameter of the second female screw to selectively couple different locking screws to each of the second female screws.
  2. 제1항에 있어서,The method of claim 1,
    상기 제1 암나사의 상부에 상기 윗면을 관통하는 제1 테이퍼 구멍이 형성되어 있고, 상기 제1 암나사와 상기 제2 암나사 사이에 상기 제1 암나사와 상기 제2 암나사를 연결하는 제2 테이퍼 구멍이 형성되어 있는 본 플레이트. A first taper hole penetrating the upper surface of the first female screw is formed, and a second taper hole connecting the first female screw and the second female screw is formed between the first female screw and the second female screw. Bone plate.
  3. 윗면과, 뼈를 향하는 아랫면과, 상기 윗면과 상기 아랫면을 관통하도록 형성되어 있으며 상부와 하부 각각에 제1 암나사와 제2 암나사가 형성되어 있는 하나 이상의 로킹 구멍을 구비하고, 상기 제1 암나사의 안지름은 상기 제2 암나사의 안지름보다 크게 형성되어 있는 본 플레이트와;An upper surface, a lower surface facing the bone, and one or more locking holes formed to penetrate the upper surface and the lower surface, the first and second female threads being formed on the upper and lower portions, respectively, and the inner diameter of the first female screw. The bone plate is formed larger than the inner diameter of the second female screw;
    상기 제1 암나사에 체결되는 제1 수나사와, 상기 제2 암나사를 통과하여 상기 뼈에 체결되는 제2 수나사를 구비하는 제1 로킹 스크루와; A first locking screw having a first male screw fastened to the first female screw and a second male screw fastened to the bone through the second female screw;
    상기 제2 암나사에 체결되는 제3 수나사와, 상기 제2 암나사를 통과하여 상기 뼈에 체결되는 제4 수나사를 구비하는 제2 로킹 스크루를 포함하는 본 스크루 시스템. And a second locking screw having a third male screw fastened to said second female screw and a fourth male screw fastened to said bone through said second female screw.
  4. 제3항에 있어서, The method of claim 3,
    상기 제1 수나사의 최대바깥지름은 상기 제2 암나사의 안지름보다 크고, 상기 제3 수나사의 최대바깥지름은 상기 제1 암나사의 안지름보다 작으며, 상기 제2 수나사와 상기 제4 수나사 각각의 최대 바깥지름은 상기 제2 암나사의 안지름보다 작게 구성되어 있는 본 스크루 시스템. The maximum outer diameter of the first male thread is larger than the inner diameter of the second female thread, and the maximum outer diameter of the third male thread is smaller than the inner diameter of the first female thread, and the maximum outer diameter of each of the second and fourth male threads. The diameter of this screw system is smaller than the inside diameter of the said 2nd female thread.
  5. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4,
    상기 제1 암나사의 상부에 상기 윗면을 관통하는 제1 테이퍼 구멍이 형성되어 있고, 상기 제1 암나사와 상기 제2 암나사 사이에 상기 제1 암나사와 상기 제2 암나사를 연결하는 제2 테이퍼 구멍이 형성되어 있는 본 플레이트 시스템.A first taper hole penetrating the upper surface of the first female screw is formed, and a second taper hole connecting the first female screw and the second female screw is formed between the first female screw and the second female screw. Bone plate system.
PCT/KR2014/008764 2013-09-23 2014-09-22 Bone plate and bone plate system using same WO2015041486A1 (en)

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JP2007151674A (en) * 2005-12-01 2007-06-21 Hidetoshi Onoe Bone plate
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KR20100077457A (en) * 2008-12-29 2010-07-08 주식회사 제일메디칼코퍼레이션 Bone plate and bone fixation assembly kit including the same
KR20100102778A (en) * 2009-03-12 2010-09-27 주식회사 솔고 바이오메디칼 Apparatus for bone fixation

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Publication number Priority date Publication date Assignee Title
JP2009513268A (en) * 2005-10-25 2009-04-02 アンセム オルソピーディックス リミテッド ライアビリティ カンパニー Bone fixation assembly and bushes and screws used therewith
JP2007151674A (en) * 2005-12-01 2007-06-21 Hidetoshi Onoe Bone plate
KR20100077457A (en) * 2008-12-29 2010-07-08 주식회사 제일메디칼코퍼레이션 Bone plate and bone fixation assembly kit including the same
KR20100102778A (en) * 2009-03-12 2010-09-27 주식회사 솔고 바이오메디칼 Apparatus for bone fixation

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