KR20100127417A - Artifical radius head - Google Patents

Artifical radius head Download PDF

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Publication number
KR20100127417A
KR20100127417A KR1020090045855A KR20090045855A KR20100127417A KR 20100127417 A KR20100127417 A KR 20100127417A KR 1020090045855 A KR1020090045855 A KR 1020090045855A KR 20090045855 A KR20090045855 A KR 20090045855A KR 20100127417 A KR20100127417 A KR 20100127417A
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South Korea
Prior art keywords
head
screw member
radial
screw
artificial
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KR1020090045855A
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Korean (ko)
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김선미
박상수
임진용
김영대
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김선미
임진용
김영대
박상수
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Priority to KR1020090045855A priority Critical patent/KR20100127417A/en
Publication of KR20100127417A publication Critical patent/KR20100127417A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3804—Joints for elbows or knees for elbows
    • A61F2002/3809—Joints for elbows or knees for elbows for radio-humeral joints

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Abstract

PURPOSE: An artificial capitulum radii is provided to selectively replace the surgical operation facilitates and reduce the burden of the stock secure and ease for an operation thereby not giving the risk to the bedspread temper. CONSTITUTION: An artificial capitulum radii(100) includes a screw member(110) and a head member(120). The screw member is screwed in the resection region of the bedspread temper and sticks. The head member is fixed at the upper end of the screw member attachably. A flat plane head unit(113) which the first jaw(113a) is formed is formed on the upper end of the screw member. The bottom of the head member having the first trapping strip(121a) which hangs on the first jaw and slides to horizontal direction of the flat plane head unit and is fixed.

Description

인공 요골두{Artifical Radius Head}Artificial Radius Head

본 발명은 요골두가 손상되었을 경우에 보철하는 인공 요골두에 관한 것이다.The present invention relates to an artificial radial head that is prosthetic when the radial head is damaged.

팔의 전완은 도1에 도시한 바와 같이 손목쪽과 팔꿈치쪽에 각각 하나씩의 요척(요골과 척골) 관절로 연결되어 있고, 요골두(2a)의 중심을 축으로 회전 운동이 일어난다. 척골(1)은 직선에 가까우나 요골(2)은 6~9°의 각을 이루면서 휘어져 있다. As shown in FIG. 1, the forearm of the arm is connected to each of the vertebrae (radius and ulna) joints on the wrist side and the elbow side, and a rotational movement occurs about the center of the radial head 2a. The ulna (1) is close to a straight line, but the radius (2) is bent at an angle of 6 ~ 9 °.

주관절(상완골, 요골, 척골)은 구조적으로 척골의 반달모양 절흔과 함께 활차 관절을 통해 구부리거나 펴는 것이 가능하다. 상완의 회전운동 역시 요골두가 뼈의 무리없이 자유로이 소두(상완골소두:capitulum)의 방해를 받기 않기 때문에 가능하다.The elbow joint (a humerus, radius, ulna) is structurally able to bend or straighten through the trochlear joint with the half-moon-shaped cut of the ulna. The rotational motion of the brachial arm is also possible because the radial head is free from the obstruction of the small head (capitulum) without any group of bones.

전완의 골절은 척골(ulna)이나 요골(radius) 단독으로 부러지기도 하고, 동시에 부러지기도 하며, 골절과 탈구가 일어나기도 한다. 전완부 골절시 골절부의 위치에 따라 근육의 작용이 달라 골절부 정복과 유지가 어렵고, 이때 부정 유합, 과다 가골(골진이 많이 나오는 경우)등이 발생할 경우는 회전운동이 잘 안된다.Fractures of the forearm may be broken by the ulna or the radius alone, at the same time, or by fractures and dislocations. When the forearm fracture fractures the muscles depending on the location of the fracture, it is difficult to conquer and maintain the fracture. At this time, rotational movement is not good in case of irregular union, excessive bone (when a lot of bones come out).

척골 측부 인대는 앞쪽의 강한 밴드와 반대쪽과 중간의 약한 부분으로 구성되어 있다. 요골 측부 인대는 요골에 붙어 있지 않으며 따라서 회전이 자유롭다. 요골은 척골의 요골 절흔에서 회전하며 강한 윤상인대(annular ligament)에 의해 고정된다. 윤상인대는 요골 절흔의 앞과 뒤의 부분에 붙어 있으며, 요골두(radius head)(2a : 도1에 도시)와 요골경부(radius neck)(2b : 도1에 도시)를 둘러싸고 있다.The ulnar collateral ligament consists of a strong band at the front and a weak portion at the opposite and middle. Radial collateral ligaments are not attached to the radial bone and are therefore free to rotate. The radius rotates in the radial segment of the ulna and is fixed by a strong annular ligament. The lumbar ligament is attached to the front and rear portions of the radial fracture and surrounds the radial head (2a: Fig. 1) and the radial neck (2b: Fig. 1).

상기 요골두(2a)가 손상되면 심한 국소 통증과 압통, 운동장애의 발생, 신경과 혈관손상으로 인한 합병증이 발생하므로, 종래에는 요골두 부분을 절제하여 위치 및 운동을 제한하게 되었으나 요골두의 기능을 회복시키는 인공 요골두로 보철하는 시술이 널리 행해지고 있다.When the radial head 2a is damaged, complications due to severe local pain and tenderness, movement disorders, and nerve and vascular injuries occur in the related art. A prosthetic prosthesis with artificial radial head to restore the pain is widely performed.

종래 인공 요골두는 머리달린 핀형태의 일체형으로 되어 있으며, 요골두를 절제한 후 절제된 부위의 상단에 인용 요골두를 밀어 박아 고정하였다.Conventional artificial radial head has a one-headed pin-shaped unit, and after the radial head was excised, the quoted radial head was pushed and fixed to the top of the dissected site.

그런데, 종래 인공 요골두는 요골의 상부에 밀어 박는 핀 형태로 되어 있으므로 가압시의 압력으로 이해 요골에 무리가 가게 되고 머리부분이 일체로 되어 있으므로 환자에 따른 상이한 골두 크기에 따라 여러가지 크기의 인공 요골두를 준비하여야 할 뿐만 아니라 골두가 마모되면 새로운 인공 요골두로 교체하여야 하므로재고확보 등의 비용이 많이 든다는 문제점이 있었다.By the way, the conventional artificial radial head is in the form of a pin pushed on the upper part of the radial bone, so the pressure at the time of pressurization makes it difficult for the radial and the head part is integrated, so the artificial radial head of various sizes according to different head size according to the patient In addition to having to prepare a new head, when the head is worn, it must be replaced with a new artificial radial head, there was a problem in that the cost of securing a lot of inventory.

따라서, 본 발명은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 골두 마모시 골두를 선택적으로 교체가능하고 재고 확보의 부담이 줄어들며 시술시에 시술이 용이하고 요골에 무리가 가지 않게 하며 사용이 편리한 인공 요골두를 제공하는 데 있다. Therefore, the present invention has been made to solve the above problems, an object of the present invention is to selectively replace the head when the head is worn, the burden of securing the inventory is reduced, the procedure is easy to use during the procedure and do not overload the radius This is to provide a convenient artificial radial head.

본 발명에 의한 인공 요골두는, 요골의 절제부위에 나사결합되어 박히는 나사부재와, 상기 나사부재의 상단에 착탈가능케 고정되는 헤드부재를 포함한다.Artificial radial head according to the present invention includes a screw member that is screwed into the cutting portion of the radial and the head member detachably fixed to the upper end of the screw member.

상기 나사부재의 상단에는 제1걸림턱이 형성된 평탄면 머리부가 형성되고, 상기 헤드부재의 저부에는 상기 제1걸림턱에 걸리는 제1걸림띠를 구비하여 상기 평탄면 머리부에 수평방향으로 슬라이딩하여 고정되는 슬라이딩 홈부가 형성되어 있다. 상기 헤드부재는 스크류에 의해 상기 나사부재의 머리부에 고정된다.The top of the screw member is formed with a flat surface head having a first locking jaw is formed, the bottom of the head member is provided with a first locking belt that is caught on the first locking jaw to slide in the horizontal direction to the flat surface head; A fixed sliding groove portion is formed. The head member is fixed to the head of the screw member by a screw.

상기 나사부재의 상단에는 제2걸림턱이 형성된 곡면 머리부가 형성되고, 상기 헤드부재의 저부에는 상기 제2걸림턱에 걸리는 제2걸림띠를 구비하여 상기 곡면 머리부에 밀착하여 고정되는 수용홈부가 형성되는 구조로 되어 있을 수도 있다. 상기 헤드부재의 저부 가장자리에는 탄성변형하여 상기 곡면 머리부에 용이하게 착탈되도록 슬릿홈이 형성되어 있다.A curved head having a second locking jaw is formed at an upper end of the screw member, and an accommodating groove portion provided with a second locking belt that is caught by the second locking jaw is fixed to the curved head at the bottom of the head member. It may be a structure formed. The bottom edge of the head member is elastically deformed so that a slit groove is formed to be easily detached from the curved head.

본 발명에 의한 인공 요골두에 의하면, 골두 마모시 골두를 선택적으로 교체가능하고 재고확보의 부담이 줄어들며, 시술시에 시술이 용이하고 요골에 무리가 가지 않게 하며 사용이 편리하다는 효과가 있다.According to the artificial radial head according to the present invention, the head can be selectively replaced when the head is worn and the burden of securing the inventory is reduced, the procedure is easy at the time of the procedure, and there is no effect on the radius and the convenience of use.

이하, 본 발명의 실시예에 대해 첨부도면을 참조하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도2는 본 발명의 제1실시예에 의한 인공 요골두가 요골에 시술된 상태를 나타내는 사시도이며, 도3은 도2의 인공 요골두의 분리 사시도이다. 도시한 바와 같이 인공 요골두(100)는 요골(2)의 요골두를 절제한 부위에 나사결합되어 박히는 나나부재(110)와, 상기 나사부재(110)의 상단에 착탈가능케 고정되는 헤드부재(120)를 구비하며, 상기 헤드부재(120)는 스크류(130)에 의해 상기 나사부재(110)의 머리부(113)에 고정된다.Figure 2 is a perspective view showing a state in which the artificial radial head according to the first embodiment of the present invention to the radial, Figure 3 is an exploded perspective view of the artificial radial head of Figure 2; As shown, the artificial radial head 100 is a screw member 110 that is screwed into the cut portion of the radial head of the radial bone 2 and the head member detachably fixed to the upper end of the screw member 110 ( 120, the head member 120 is fixed to the head 113 of the screw member 110 by a screw 130.

상기 나사부재(110)는, 요골에 박히는 나사부(111)의 상측에 플랜지부(112)가 형성되어 요골(2)의 절제된 면에 걸리게 되며, 상기 플랜지부(112)의 상측으로 상기 헤드부재(120)가 결합되는 평탄면 머리부(113)가 형성된 구조이다.The screw member 110, the flange portion 112 is formed on the upper side of the screw portion 111 that is lodged in the radius is caught on the cut surface of the radius (2), the head member (on the upper side of the flange 112) ( The flat surface head 113 to which the 120 is coupled is formed.

상기 머리부(113)는 외면을 따라 제1걸림턱(113a)이 형성된 평탄면을 가진 사각돌출부 형태로 되어 있으며, 그 상면에는 렌치공구를 끼워 회동시키도록 육각 홈(113b)이 형성되어 있으며, 그 평탄면에는 상기 스크류(130)가 나사결합되는 나사구멍(113c)이 형성되어 있다.The head 113 is in the form of a square protrusion having a flat surface with a first locking jaw 113a is formed along the outer surface, a hexagonal groove 113b is formed on the upper surface to rotate the wrench tool, The flat surface is formed with a screw hole 113c to which the screw 130 is screwed.

상기 헤드부재(120)는 도4 내지 도6에 도시한 바와 같이, 상측의 직경이 큰 원뿔대 형태로 되어 있으며, 그 저부에는 상기 제1걸림턱(113a)에 걸리는 제1걸림띠(121a)를 구비하여 상기 평탄면 머리부(113)에 수평방향으로 슬라이딩하여 고정되는 슬라이딩 홈부(121)가 형성되어 있다. 상기 헤드부재(120)의 외면에는 스크류(130)가 나사결합되는 나사구멍(122)이 형성되어 있다. 상기 나사구멍(122)은 상기 스크류(130)의 머리부(131)를 수용하는 수용홈(122a)을 포함한다. 상기 슬라이딩 홈부(121)의 반대쪽에는 헤드부재(120)를 잡아서 결합하거나 이송하기 위한 드라이버를 결합하기 위한 나사홈(123)이 형성되어 있다. As shown in FIGS. 4 to 6, the head member 120 has a truncated cone shape having a large diameter at an upper side thereof, and has a first catching strap 121a that is caught by the first catching jaw 113a at the bottom thereof. It is provided with a sliding groove 121 is fixed to the flat surface head 113 by sliding in a horizontal direction. The outer surface of the head member 120 is formed with a screw hole 122 for screwing the screw 130. The screw hole 122 includes a receiving groove 122a for receiving the head 131 of the screw 130. On the opposite side of the sliding groove 121 is a screw groove 123 for coupling a driver for holding or coupling the head member 120 is formed.

이와 같이 구성된 본 발명의 제1실시예에 의한 인공 요골두(100)는, 요골두를 절제한 부위에 우선 나사부재(110)를 박은 다음, 상기 헤드부재(120)의 슬라이딩 홈부(121)를 상기 나사부재(110)의 머리부(113)에 슬라이딩하여 끼워 결합하는데, 이때 제1걸림띠(121a)가 머리부(113)의 제1걸림턱(113a)에 끼워져 걸리게 한다. 그리고, 상기 헤드부재(120)의 나사구멍(122) 및 나사부재 머리부(113)의 나사구멍(113c)에 스크류(130)를 결합하여 헤드부재(120)를 나사부재(110)에 고정하여, 인공 요골두(100)의 시술을 완료한다.In the artificial radial head 100 according to the first embodiment of the present invention configured as described above, the screw member 110 is first driven to the site where the radial head is removed, and then the sliding groove 121 of the head member 120 is closed. Sliding and coupling to the head 113 of the screw member 110, at this time, the first catching strap 121a is fitted to the first catching jaw 113a of the head 113. In addition, the screw 130 is coupled to the screw hole 122 of the head member 120 and the screw hole 113c of the screw member head 113 to fix the head member 120 to the screw member 110. , Complete the procedure of artificial radial head (100).

도7은 본 발명의 제2실시예에 의한 인공 요골두(200)의 분리 사시도이고, 도8은 도7에서 화살표 B-B선에 따른 단면도이다. 도시한 바와 같이 본 발명의 제2실시예는 별도의 스크류를 사용하지 않고 헤드부재(220)를 나사부재(210)에 착탈가능 케 결합하는 구조이다. 7 is an exploded perspective view of the artificial radial head 200 according to the second embodiment of the present invention, and FIG. 8 is a cross-sectional view taken along the line B-B in FIG. As shown, the second embodiment of the present invention has a structure in which the head member 220 is detachably connected to the screw member 210 without using a separate screw.

상기 나사부재(210)의 상단에는 제2걸림턱(213a)이 형성된 곡면 머리부(213)가 형성되고, 상기 헤드부재(220)의 저부에는 상기 제2걸림턱(213a)에 걸리는 제2걸림띠(221a)를 구비하여 상기 곡면 머리부(213)에 밀착하여 고정되는 수용홈부(221)가 형성되어 있다. A curved head 213 having a second locking jaw 213a is formed at an upper end of the screw member 210, and a second hook is caught at the second locking jaw 213a at a bottom of the head member 220. A receiving groove 221 is formed to have a belt 221a and is fixed in close contact with the curved head 213.

상기 곡면 머리부(213)의 상면에는 렌치공구를 끼워 회동시키도록 육각홈(213b)가 형성되어 있으며, 상기 헤드부재(220)의 저부 가장자리에는 탄성변형하여 상기 곡면 머리부(213)에 용이하게 착탈되도록 슬릿홈(222)이 형성되어 있다. 상기 제2걸림턱(213a)은 곡면 머리부(213)의 저부에 원주방향을 따라 형성된 단턱으로 되어 있다. 상기 헤드부재(220)는 상측의 직경이 큰 원뿔대 형태로 되어 있다.Hexagonal grooves 213b are formed on the upper surface of the curved head 213 to rotate by inserting a wrench tool, and the bottom edge of the head member 220 is elastically deformed to facilitate the curved head 213. The slit groove 222 is formed to be detached. The second catching jaw 213a is a stepped portion formed in the bottom of the curved head 213 along the circumferential direction. The head member 220 is in the shape of a truncated cone having a large diameter on the upper side.

이와 같이 구성된 본 발명의 제2실시예에 의한 인공 요골두(200)는, 요골두를 절제한 부위에 우선 나사부재(210)를 박은 다음, 상기 헤드부재(220)의 수용홈부(221)를 상기 나사부재(110)의 머리부(213)에 밀어 끼워 결합하는데, 이때 제2걸림띠(221a)가 머리부(213)의 제2걸림턱(213a)에 끼워져 걸리게 하면, 인공 요골두(200)의 시술이 완료된다.In the artificial radial head 200 according to the second embodiment of the present invention configured as described above, the screw member 210 is first driven to the site of the radial head resection, and then the receiving groove 221 of the head member 220 is closed. Push-fit to the head 213 of the screw member 110, when the second locking belt 221a is fitted to the second locking jaw (213a) of the head 213, artificial radial head 200 ) The procedure is completed.

도1은 인체의 척골 및 요골을 나타내는 사시도,1 is a perspective view showing the ulna and radius of the human body,

도2는 본 발명의 제1실시예에 의한 인공 요골두가 요골에 시술된 상태도,Figure 2 is a state in which the artificial radial head according to the first embodiment of the present invention is treated in the radial,

도3은 본 발명의 제1실시예에 의한 인공 요골두의 분리 사시도,Figure 3 is an exploded perspective view of the artificial radial head according to the first embodiment of the present invention,

도4는 도3의 헤드부재를 하측에서 바라본 사시도,4 is a perspective view of the head member of FIG. 3 seen from below;

도5는 도3의 헤드부재의 저면도,5 is a bottom view of the head member of FIG. 3;

도6은 도5에서 화살표 A-A선에 따른 단면도,6 is a cross-sectional view taken along the line A-A in FIG. 5;

도7은 본 발명의 제2실시예에 의한 인공 요골두의 분리 사시도,Figure 7 is an exploded perspective view of the artificial radial head according to a second embodiment of the present invention,

도8은 도7에서 화살표 B-B선에 따른 단면도이다.FIG. 8 is a cross-sectional view taken along the arrow line B-B in FIG.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100, 200 : 인공 요골두 110, 210 : 나사부재100, 200: artificial radial head 110, 210: screw member

113 : 평탄면 머리부 113a : 제1걸림턱 113: flat surface head 113a: first locking jaw

213 : 곡면 머리부 213a : 제2걸림턱213: curved head 213a: second locking jaw

120, 220 : 헤드부재 121 : 슬라이딩 홈부120, 220: head member 121: sliding groove

121a : 제1걸림띠 221 : 수용홈부121a: first locking belt 221: receiving groove

221a : 제2걸림띠 222 : 슬릿홈221a: second latch 222: slit groove

Claims (5)

요골의 절제부위에 나사결합되어 박히는 나사부재와, A screw member screwed into the ablation site of the radius, 상기 나사부재의 상단에 착탈가능케 고정되는 헤드부재를 포함하는 것을 특징으로 하는 인공 요골두.Artificial radial head comprising a head member detachably fixed to the upper end of the screw member. 청구항 1에 있어서,The method according to claim 1, 상기 나사부재의 상단에는 제1걸림턱이 형성된 평탄면 머리부가 형성되고,The upper end of the screw member is formed with a flat head head having a first locking jaw, 상기 헤드부재의 저부에는 상기 제1걸림턱에 걸리는 제1걸림띠를 구비하여 상기 평탄면 머리부에 수평방향으로 슬라이딩하여 고정되는 슬라이딩 홈부가 형성되어 있는 것을 특징으로 하는 인공 요골두. The bottom of the head member is provided with a first locking belt that is caught on the first locking jaw, the artificial radial head, characterized in that the sliding groove is fixed to the flat surface head by sliding in the horizontal direction. 청구항 2에 있어서,The method according to claim 2, 상기 헤드부재는 스크류에 의해 상기 나사부재의 머리부에 고정되는 것을 특징으로 하는 인공 요골두.The head member is artificial radial head, characterized in that fixed to the head of the screw member by a screw. 청구항 1에 있어서,The method according to claim 1, 상기 나사부재의 상단에는 제2걸림턱이 형성된 곡면 머리부가 형성되고, The upper end of the screw member is formed with a curved head portion is formed with a second locking jaw, 상기 헤드부재의 저부에는 상기 제2걸림턱에 걸리는 제2걸림띠를 구비하여 상기 곡면 머리부에 밀착하여 고정되는 수용홈부가 형성되어 있는 것을 특징으로 하는 인공 요골두. The bottom of the head member is provided with a second locking belt that is caught on the second locking jaw, the artificial radial head characterized in that the receiving groove is formed to be fixed in close contact with the curved head. 청구항 4에 있어서, The method according to claim 4, 상기 헤드부재의 저부 가장자리에는 탄성변형하여 상기 곡면 머리부에 용이하게 착탈되도록 슬릿홈이 형성되어 있는 것을 특징으로 하는 인공 요골두.An artificial radial head, characterized in that the bottom edge of the head member is elastically deformed and a slit groove is formed to be easily detached from the curved head.
KR1020090045855A 2009-05-26 2009-05-26 Artifical radius head KR20100127417A (en)

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