KR101045407B1 - 대퇴골 내로 삽입되는 샤프트를 갖는 고관절 보철물 - Google Patents
대퇴골 내로 삽입되는 샤프트를 갖는 고관절 보철물 Download PDFInfo
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- KR101045407B1 KR101045407B1 KR1020057014605A KR20057014605A KR101045407B1 KR 101045407 B1 KR101045407 B1 KR 101045407B1 KR 1020057014605 A KR1020057014605 A KR 1020057014605A KR 20057014605 A KR20057014605 A KR 20057014605A KR 101045407 B1 KR101045407 B1 KR 101045407B1
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- bone
- prosthesis
- electronic
- hip prosthesis
- shaft
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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
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- A61F2/30—Joints
- A61F2/30721—Accessories
- A61F2/30739—Devices connected to the proximal part of an endoprosthetic femoral shaft for reinforcing or replacing the trochanters, e.g. the greater trochanter
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- A—HUMAN NECESSITIES
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- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00976—Coating or prosthesis-covering structure made of proteins or of polypeptides, e.g. of bone morphogenic proteins BMP or of transforming growth factors TGF
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Abstract
Description
따라서, 보철물의 전자 표면의 적어도 일부가 골유도성 물질을 포함한다. 골유도성 물질은 골전도성 물질과 대조적으로, 미분화된 다능성 줄기 세포를 골세포로 변환하도록 자극하는 물질로서 이해된다 (알브레히트손, 요한손: 골유도, 골전도 및 골유착; 군쯔버그(Gunzburg) 출판사: 척추 수술에서의 골질의 사용; 슈프링어. - 데니센, 에이치. 등: 비스포스포네이트의 방출을 위한 세라믹 수산화인회석 임플란트; 뼈와 무기질(Bone and Mineral) 1994년 p. 123-124. - 요시나리, 엠. 등: 인산칼슘 코팅 및 비스포스포네이트 고정식 티타늄 임플란트의 골반응; 생체 재료(Biomaterials) 2002년 p. 2879-2885. - 요시나리, 엠. 등: 표면 변형 티타늄 상에서의 비스포스포네이트 고정; 생체 재료 2002년, p. 709-715). 이러한 물질은 비스포스포네이트 및 뼈 모르포겐 단백질(BMP)을 포함한다. 둔부 보철물(미국 특허출원 제2002/0049497 및 미국 특허출원 제2002/0127261)을 포함하는 뼈 보철물의 표면을 마감하는데 사용할 수도 있다. 이는 뼈와 보철물 표면을 매우 친밀하게 연결시켜, 후속 수술 시에 뼈로부터 보철물을 제거하기 어렵기 때문에 바람직하지 않을 수 있다.
본 발명의 목적은 후속 수술을 수행하는 능력을 포함하지 않고 뼈 내의 대퇴부 보철물의 고정을 향상시키는 것이다. 본 발명에 따른 해결책은 특허청구범위의 구성에 있다.
따라서, 대퇴골 내에 삽입될 샤프트를 갖는 고관절 보철물에서, 골형성 물질은 전자 영역 내에, 또는 이러한 표면 상에 놓이기 위한 보철물의 표면 상에만 제공된다.
보철물의 전자 표면이 샤프트로부터 전자 영역으로 연장하는 돌출부를 갖는다면, 골형성 물질은 이러한 돌출부 또는 이러한 부분 상에만 적절하게 제공된다.
물질이 외부가 다공성인 코팅 내로 유착되는 것이 특히 적절하다. 코팅은 임의의 원하는 유형일 수 있다. 예를 들어, 이는 다공성 금속 층일 수 있다. 특히 유리하게는 그러한 코팅은 그러한 원래 골전도성이며 예를 들어 인산칼슘 또는 수산화인회석으로 구성된 것이다.
본 발명의 효과는 수술 후에 매우 빨리 골세포가 보철물 표면에 바로 근접하여 그와 연결되어 생기는 것이다. 이에 의해, 골표면과 뼈 사이의 상대 운동이 후에 이후의 밀접한 연결을 훼손하거나 불가능하게 만드는 갭 또는 연결 조직 중간 층이 초기에 형성되지 않는다. 본 발명은 보철물 표면과 골질 사이의 최적의 압입 밀착 연결이 이미 달성된 경우에도, 실제로 미세하게 얇지만 분리하는 중간 층이 존재한다는 인식에 기초한다. 본 발명에 의하면, 보철물의 전자 표면 상에서의 뼈의 더욱 신속한 축적, 및 상기 전자 표면의 세공 및 리세스 내로의 뼈의 더욱 신속한 유착이 있어서, 뼈의 전자 부위가 보철물과 빨리 영구적으로 연결되고, 이 결과 힘 전달에 관여한다.
본 발명에 따른 특징은 보통 보철물의 전자 부위에 대해서만 제공된다. 본 발명의 범주가 다른 보철물 부위에서도 사용되는 골유도성이 변형된 표면의 가능성을 배제하지는 않지만, 이는 결과적인 밀접한 연결 때문에 후속 수술의 경우에 뼈로부터 보철물을 제거하기 어렵게 만들 수 있으므로, 통상 바람직하지 않다.
전자 보철물 부분의 표면의 골유도성 물질을 함유하는 부분은 적절하게는 측방향과 관련하여 세공 또는 언더컷을 포함하여, 골유도의 결과 형성된 골질이 표면에 부착될 뿐만 아니라 끼워 맞춤식으로 그 위에 고정될 수 있다.
보철물의 전자 표면은 정상적인 이식 후에, 대퇴골의 전자 부위 내에 놓이도록 결정된 표면으로서 간주된다. 뼈의 전자 부분은 도1의 해칭 부분이다. 대퇴골경의 중심선과 골간의 근위 단부의 중심선 사이의 교차 지점으로부터 시작하여, 전자 부위는 이러한 교차 지점으로부터 둔부의 헤드의 상부 모서리까지 그려진 접선으로부터 측방향으로, 그리고 이러한 접선에 연속적인 대퇴골경의 중심선의 그러한 부분으로부터 측방향으로 놓인다. 보철물의 전자 표면은 뼈의 전자 부분 내에 놓이도록 결정된 그의 표면의 그러한 부분이다. 이러한 표면 부분은 어떻게 이식되어야 하는 지 그리고 뼈 안에서 보통 어떠한 위치를 취할 것인 지를 알기 때문에, 이식되지 않은 보철물 상에서 쉽게 결정될 수 있다.
뼈의 전자 부분의 중심에서, 해면질은 때때로 피질에 가까운 곳에서보다 덜 조밀하다. 따라서, 등배 방향으로 향하는 보철물의 전자 골유도성 표면 부분은 양호하게는 뼈의 중심면으로부터 일정 거리에 위치된다. 그러므로, 이러한 표면 부분을 형성하는 보철물의 부분은 AP 방향으로 너무 얇으면 안 된다. 그의 두께, 즉 상기 표면 부분들의 거리는 적절하게는 6 mm 이상, 더욱 양호하게는 9 mm 이상에서 약 15 mm까지이다.
보철물 표면 상으로의 새로운 골세포의 성장은 해당 표면 부분의 억지 끼워 맞춤에 의해 촉진될 수 있다. 그러므로, 해당 표면 및 그의 결합 표면이 보철물이 뼈 속으로 삽입되는 방향에서 쐐기형으로 만들어지고, 보철물 샤프트에 대한 수납 영역을 형성하도록 사용되는 보철물에 속하는 줄(rasp)이 보철물 샤프트가 줄에 의해 형성된 공간 내로 삽입될 때 해당 표면 부분이 골질을 대체하는 것이 적절하다.
본 발명은 도면을 참조하여 아래에서 더욱 상세하게 설명된다.
Claims (9)
- 대퇴골의 골간 내에 고정되고 상기 대퇴골의 골질과 직접 접촉하는 샤프트(12) 및 상기 대퇴골의 전자 부위(4) 내에 놓이고 뼈의 성장을 촉진시키는 코팅을 갖는 전자 표면 부분을 포함하는 고관절 보철물에 있어서,상기 전자 표면 부분 또는 그 일부만이 골유도성 물질을 포함하고,상기 샤프트(12)의 표면은 골유도성 물질이 배제된 것을 특징으로 하는 고관절 보철물.
- 제1항에 있어서, 상기 골유도성 물질은 전자 부위(4) 내의 샤프트(12)로부터 돌출하는 전자 돌출부(13) 상에만 제공되는 것을 특징으로 하는 고관절 보철물.
- 제1항 또는 제2항에 있어서, 골유도성 물질은 코팅에 의해 형성되거나 코팅의 일부인 것을 특징으로 하는 고관절 보철물.
- 제1항 또는 제2항에 있어서, 골유도성 물질은 비스포스포네이트 또는 BMP을 포함하는 것을 특징으로 하는 고관절 보철물.
- 제1항 또는 제2항에 있어서, 골유도성 물질을 함유하는 전자 보철물 표면의 전체 또는 그 일부는 다공성인 것을 특징으로 하는 고관절 보철물.
- 제1항 또는 제2항에 있어서, 골유도성 물질은 측방향(17)에 대해 언더컷된 전자 보철물 표면의 면 부분 상에 인가되는 것을 특징으로 하는 고관절 보철물.
- 제1항 또는 제2항에 있어서, 전자 보철물 표면은 골유도성 코팅(16)을 구비하고 전후 방향으로 서로 6 mm 이상의 거리만큼 떨어진 배쪽 면 및 등쪽 면을 포함하는 것을 특징으로 하는 고관절 보철물.
- 제2항에 있어서, 돌출부(13)는 이식 방향에서 쐐기형이고, 보철물에 속하는 줄은 상기 돌출부의 영역 내에서 더 작은 체적을 포함하는 것을 특징으로 하는 고관절 보철물.
- 제2항 또는 제8항에 있어서, 돌출부(13)는 샤프트로부터 해제 가능한 것을 특징으로 하는 고관절 보철물.
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US10/361,007 | 2003-02-10 | ||
US10/361,007 US20040158329A1 (en) | 2003-02-10 | 2003-02-10 | Hip joint prosthesis with shaft inserted into femur |
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US6749639B2 (en) * | 2001-08-27 | 2004-06-15 | Mayo Foundation For Medical Education And Research | Coated prosthetic implant |
US20030088315A1 (en) * | 2001-11-08 | 2003-05-08 | Supinski Robert S | Patella replacement apparatus |
US7166130B2 (en) * | 2002-06-27 | 2007-01-23 | Ferree Bret A | Artificial disc replacements with deployable fixation components |
US6974482B2 (en) * | 2002-11-22 | 2005-12-13 | Zimmer Austin, Inc. | Implantable orthopedic prosthesis with textured polymeric surfaces |
-
2003
- 2003-02-10 US US10/361,007 patent/US20040158329A1/en not_active Abandoned
- 2003-05-20 CA CA2515065A patent/CA2515065C/en not_active Expired - Lifetime
- 2003-05-20 JP JP2004567744A patent/JP4347813B2/ja not_active Expired - Fee Related
- 2003-05-20 CN CNB038259583A patent/CN100571656C/zh not_active Expired - Lifetime
- 2003-05-20 EP EP03815690A patent/EP1592369B1/de not_active Expired - Lifetime
- 2003-05-20 KR KR1020057014605A patent/KR101045407B1/ko active IP Right Grant
- 2003-05-20 AU AU2003232803A patent/AU2003232803B2/en not_active Ceased
- 2003-05-20 BR BR0318096-4A patent/BR0318096A/pt not_active Application Discontinuation
- 2003-05-20 DE DE50311696T patent/DE50311696D1/de not_active Expired - Lifetime
- 2003-05-20 WO PCT/EP2003/005292 patent/WO2004069102A1/de active Application Filing
- 2003-05-20 AT AT03815690T patent/ATE435627T1/de active
- 2003-05-20 ES ES03815690T patent/ES2328808T3/es not_active Expired - Lifetime
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2005
- 2005-07-01 US US11/171,305 patent/US20050246033A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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WO1993008771A1 (en) * | 1991-10-30 | 1993-05-13 | Depuy International Limited | A femoral prosthesis |
US20020127261A1 (en) * | 2001-03-12 | 2002-09-12 | Risbud Subhash H. | Method to improve hydroxyapatite implantation and stimulate bone regeneration |
Also Published As
Publication number | Publication date |
---|---|
CA2515065A1 (en) | 2004-08-19 |
CA2515065C (en) | 2011-07-12 |
AU2003232803B2 (en) | 2010-02-25 |
DE50311696D1 (de) | 2009-08-20 |
ES2328808T3 (es) | 2009-11-18 |
AU2003232803A1 (en) | 2004-08-30 |
EP1592369A1 (de) | 2005-11-09 |
ATE435627T1 (de) | 2009-07-15 |
US20050246033A1 (en) | 2005-11-03 |
US20040158329A1 (en) | 2004-08-12 |
KR20050095647A (ko) | 2005-09-29 |
CN100571656C (zh) | 2009-12-23 |
BR0318096A (pt) | 2005-12-20 |
JP4347813B2 (ja) | 2009-10-21 |
WO2004069102A1 (de) | 2004-08-19 |
EP1592369B1 (de) | 2009-07-08 |
JP2006513753A (ja) | 2006-04-27 |
CN1741774A (zh) | 2006-03-01 |
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