JP6149105B2 - 椎体置換デバイスおよび挿入ツールを用いたそのデバイスの使用方法 - Google Patents
椎体置換デバイスおよび挿入ツールを用いたそのデバイスの使用方法 Download PDFInfo
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- JP6149105B2 JP6149105B2 JP2015512876A JP2015512876A JP6149105B2 JP 6149105 B2 JP6149105 B2 JP 6149105B2 JP 2015512876 A JP2015512876 A JP 2015512876A JP 2015512876 A JP2015512876 A JP 2015512876A JP 6149105 B2 JP6149105 B2 JP 6149105B2
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- replacement device
- end member
- vertebral body
- vertebral
- wall
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- A61F2002/4622—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof having the shape of a forceps or a clamp
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4627—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4628—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about an axis transverse to the instrument axis or to the implantation direction, e.g. clamping
-
- 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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4637—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for connecting or disconnecting two parts of a prosthesis
- A61F2002/4638—Tools for performing screwing, e.g. nut or screwdrivers, or particular adaptations therefor
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Neurology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Description
本発明は、概して、脊椎内への挿入のために使用される整形外科および脳神経外科用インプラントに関し、より具体的ではあるが非限定的には、切除された、骨折した、または疾患のある椎体を置換するため、および残された隣接する椎体の間で適切な空間を維持または再建するために、脊柱内に移植されるデバイスに関する。
個人の脊柱内の椎体の複合構造に影響を及ぼす損傷または疾患は、脊髄の潜在的な永久的損傷を伴う神経障害、および首と背中の不適切な整合を引き起こす可能性がある。脊髄および神経根の持続的な機能性、ならびに長期にわたる重度の神経障害の回避を確保するために、脊柱内に解剖学的空間を維持することが非常に重要である。
公知の椎体置換デバイスの短所は、本発明による椎体置換デバイスによって、多くの点で解決される。
本明細書は、例えば、以下の項目も提供する。
(項目1)
椎体置換デバイスであって、前記椎体置換デバイスは、
本体部材であって、前記本体部材は、前記本体部材の外壁に画定されたツール用ポートと、第1の方向に延在する第1の端受部と、前記第1の方向と反対の第2の方向に延在する第2の受部とを備える、本体部材と、
第1のねじ山付き部分と、第2のねじ山付き部分と、歯車部とを有する中心ロッド部材であって、前記中心ロッド部材は、前記本体部材内に延在し、前記歯車部は、歯状表面および支持表面を有する、中心ロッド部材と、
第1の端部材および第2の端部材であって、前記第1の端部材は、第1の端面であって、前記第1の端面は、そこに画定された開口を備え、前記第1の端受部を前記開口の中に摺動可能に受け取るように構成されている、第1の端面と、前記中心ロッド部材の前記第1のねじ山付き部分に係合するねじ山付き孔とを有し、前記第2の端部材は、第1の端面であって、前記第1の端面は、そこに画定された開口を備え、前記第2の端受部を前記開口の中に摺動可能に受け取るように構成されている、第1の端面と、前記中心ロッド部材の前記第2のねじ山付き部分に係合するねじ山付き孔とを有する、第1の端部材および第2の端部材と
を備え、前記第1の端部材は、前記本体部材の長手方向軸に対して半径方向に内外から前記第1の端受部を境界し、前記第2の端部材は、前記本体部材の長手方向軸に対して半径方向に内外から前記第2の端受部を境界し、
前記第1の端部材および第2の端部材が脊柱の対応する椎体に係合した状態で、前記椎体置換デバイスが前記脊柱内の空間内に配置されると、前記本体部材、前記第1の端部材、および前記第2の端部材は、前記本体部材に対する前記第1の端部材および第2の端部材の回転移動を抑制し、前記中心ロッド部材は、前記第1の端部材および前記第2の端部材を前記本体部材に対して軸方向に移動させるように回転作動させられ、前記第1の端部材および前記第2の端部材が、力を前記2つの椎体に適用して、前記椎体間に所望の空間を維持することを可能にする、椎体置換デバイス。
(項目2)
前記ツール用ポートは、一対のピン受取ポート間に位置決めされ、前記ツール用ポートは、前記歯車部に係合するツールを受け取るように構成され、前記ピン受取ポートは、その中に係合ピンを受け取るように構成されている、項目1に記載の椎体置換デバイス。
(項目3)
前記ツール用ポートならびに前記第1のピン受取ポートおよび第2のピン受取ポートは、前記ツールが前記ツール用ポートを通して挿入されて前記歯車部と適切に係合することを可能にする整合および割出機構を形成している、項目2に記載の椎体置換デバイス。
(項目4)
前記第1のピン受取ポートおよび第2のピン受取ポートはそれぞれ、伸長スロットを画定する、項目2に記載の椎体置換デバイス。
(項目5)
前記ツール用ポートならびに第1のピン受取ポートおよび第2のピン受取ポートは、前記第1の端部材および前記第2の端部材から等距離にある、項目2に記載の椎体置換デバイス。
(項目6)
前記第1のピン受取ポートおよび第2のピン受取ポートは、対応する係合ピンが前記第1のピン受取ポートおよび第2のピン受取ポートの対応するピン受取ポートに係合すると、前記ツール用ポートを通して挿入されているツールの位置を制御する、項目3に記載の椎体置換デバイス。
(項目7)
前記中心ロッド部材が前記本体部材内に動作可能に位置決めされると、前記中心ロッド部材の前記歯車部の前記支持表面に接触する軸受表面を有する支持リングをさらに備える、項目1に記載の椎体置換デバイス。
(項目8)
前記支持リングは、C形状である、項目7に記載の椎体置換デバイス。
(項目9)
前記第1の端受部および第2の端受部間に延在する、中央チャンバをさらに備え、前記ツール用ポートおよび前記一対のピン受取ポートは、前記本体部材の外壁を通って前記中央チャンバ内に延在する、項目2に記載の椎体置換デバイス。
(項目10)
少なくとも1つの底板部材をさらに備え、前記少なくとも1つの底板部材は、前記第1の端部材および前記第2の端部材のうちの少なくとも1つに連結する、項目1に記載の椎体置換デバイス。
(項目11)
前記第1の端部材および前記第2の端部材はそれぞれ、外壁および内壁をさらに備え、前記第1の端部材および前記第2の端部材のそれぞれは、少なくとも1つの進行制限機構を含み、前記少なくとも1つの進行制限機構は、前記本体部材に係合することにより、前記本体部材に対する前記第1の端部材および第2の端部材の移動を制限する、項目1に記載の椎体置換デバイス。
(項目12)
前記第1の端部材および前記第2の端部材はそれぞれ、そのそれぞれの第1の端面と反対の端壁を含み、少なくとも1つの突起が、前記端壁上に配置され、外向き方向に延在する、項目11に記載の椎体置換デバイス。
(項目13)
前記少なくとも1つの進行制限機構は、前記本体部材に摺動可能に係合するように構成されたピンを備える、項目11に記載の椎体置換デバイス。
(項目14)
前記第1の端受部および前記第2の端受部はそれぞれ、少なくとも1つの長手方向スロットを備え、前記少なくとも1つの長手方向スロットは、その中に前記ピンを受け取るように構成されている、項目13に記載の椎体置換デバイス。
(項目15)
前記本体部材は、前記外壁から離れる方へ前記半径方向に延在する突起をさらに備え、前記突起は、前記本体部材の前記長手方向軸に対して平行な、前記外壁に延在するチャネルによって画定されている、項目1に記載の椎体置換デバイス。
(項目16)
前記突起は、蟻継ぎ構成を有し、各チャネルは、V形状断面プロファイルを有する、項目15に記載の椎体置換デバイス。
(項目17)
前記少なくとも1つの長手方向スロットは、前記第1の端受部および前記第2の端受部が前記本体部材に対して移動されることができる拡張長を制限する終端を含む、項目14に記載の椎体置換デバイス。
(項目18)
前記第1の端部材および前記第2の端部材はそれぞれ、前記本体部材に対する前記第1の端部材および前記第2の端部材の位置を固定する係止機構を含む、項目1に記載の椎体置換デバイス。
(項目19)
前記係止機構は、係止要素を受け取るように構成された係止ピン開口を含む、項目18に記載の椎体置換デバイス。
概説すると、本明細書で開示されるのは、本体部材、中心ロッド部材、支持リング、2つの端部材、および少なくとも1つの底板部材を典型的に含む、椎体置換デバイスまたは脊椎スペーサである。本明細書で使用される場合、「椎体置換デバイス」および「脊椎スペーサ」という用語は、それらは本質的に同じ種類のインプラント用デバイスを表現しているため、交換可能に使用され得る。さらに、本明細書に記載されるのは、椎体置換デバイスを使用して、脊柱の疾患または損傷を患う患者の2つの椎体の間で空間を維持する外科的方法である。
Claims (20)
- 椎体置換デバイスであって、前記椎体置換デバイスは、
本体部材であって、前記本体部材は、前記本体部材の外壁に画定されたツール用ポートと、第1の方向に延在する第1の端受部と、前記第1の方向と反対の第2の方向に延在する第2の端受部とを備える、本体部材と、
第1のねじ山付き部分と、第2のねじ山付き部分と、歯車部とを有する中心ロッド部材であって、前記中心ロッド部材は、前記本体部材内に延在し、前記歯車部は、歯状表面および支持表面を有する、中心ロッド部材と、
第1の端部材および第2の端部材であって、前記第1の端部材は、第1の端面であって、前記第1の端面は、そこに画定された開口を備え、前記第1の端受部を前記開口の中に摺動可能に受け取るように構成されている、第1の端面と、前記中心ロッド部材の前記第1のねじ山付き部分に係合するねじ山付き孔とを有し、前記第2の端部材は、第1の端面であって、前記第1の端面は、そこに画定された開口を備え、前記第2の端受部を前記開口の中に摺動可能に受け取るように構成されている、第1の端面と、前記中心ロッド部材の前記第2のねじ山付き部分に係合するねじ山付き孔とを有する、第1の端部材および第2の端部材と
を備え、前記第1の端部材の内壁は、前記本体部材の長手方向軸に対して半径方向に内外から前記第1の端受部を境界し、前記第2の端部材は、前記本体部材の長手方向軸に対して半径方向に内外から前記第2の端受部を境界し、
前記第1の端部材および第2の端部材が脊柱の対応する椎体に係合した状態で、前記椎体置換デバイスが前記脊柱内の空間内に配置されると、前記本体部材、前記第1の端部材、および前記第2の端部材は、前記本体部材に対する前記第1の端部材および第2の端部材の回転移動を抑制し、前記中心ロッド部材は、前記第1の端部材および前記第2の端部材を前記本体部材に対して軸方向に移動させるように回転作動させられ、前記第1の端部材および前記第2の端部材が、力を前記2つの椎体に適用して、前記椎体間に所望の空間を維持することを可能にする、椎体置換デバイス。 - 前記ツール用ポートは、一対のピン受取ポート間に位置決めされ、前記ツール用ポートは、前記歯車部に係合するツールを受け取るように構成され、前記ピン受取ポートは、その中に係合ピンを受け取るように構成されている、請求項1に記載の椎体置換デバイス。
- 前記ツール用ポートならびに前記第1のピン受取ポートおよび第2のピン受取ポートは、前記ツールが前記ツール用ポートを通して挿入されて前記歯車部と適切に係合することを可能にする整合および割出機構を形成している、請求項2に記載の椎体置換デバイス。
- 前記第1のピン受取ポートおよび第2のピン受取ポートはそれぞれ、伸長スロットを画定する、請求項2に記載の椎体置換デバイス。
- 前記ツール用ポートならびに第1のピン受取ポートおよび第2のピン受取ポートは、前記第1の端部材および前記第2の端部材から等距離にある、請求項2に記載の椎体置換デバイス。
- 前記第1のピン受取ポートおよび第2のピン受取ポートは、対応する係合ピンが前記第1のピン受取ポートおよび第2のピン受取ポートの対応するピン受取ポートに係合すると、前記ツール用ポートを通して挿入されている前記ツールの位置を制御する、請求項3に記載の椎体置換デバイス。
- 前記中心ロッド部材が前記本体部材内に動作可能に位置決めされると、前記中心ロッド部材の前記歯車部の前記支持表面に接触する軸受表面を有する支持リングをさらに備える、請求項1に記載の椎体置換デバイス。
- 前記支持リングは、C形状である、請求項7に記載の椎体置換デバイス。
- 前記第1の端受部および第2の端受部間に延在する、中央チャンバをさらに備え、前記ツール用ポートおよび前記一対のピン受取ポートは、前記本体部材の外壁を通って前記中央チャンバ内に延在する、請求項2に記載の椎体置換デバイス。
- 少なくとも1つの底板部材をさらに備え、前記少なくとも1つの底板部材は、前記第1の端部材および前記第2の端部材のうちの少なくとも1つに連結する、請求項1に記載の椎体置換デバイス。
- 前記第1の端部材および前記第2の端部材はそれぞれ、外壁および内壁をさらに備え、前記第1の端部材および前記第2の端部材のそれぞれは、少なくとも1つの進行制限機構を含み、前記少なくとも1つの進行制限機構は、前記本体部材に係合することにより、前記本体部材に対する前記第1の端部材および第2の端部材の移動を制限する、請求項1に記載の椎体置換デバイス。
- 前記第1の端部材および前記第2の端部材はそれぞれ、そのそれぞれの第1の端面と反対の端壁を含み、少なくとも1つの突起が、前記端壁上に配置され、外向き方向に延在する、請求項11に記載の椎体置換デバイス。
- 前記少なくとも1つの進行制限機構は、前記本体部材に摺動可能に係合するように構成されたピンを備える、請求項11に記載の椎体置換デバイス。
- 前記第1の端受部および前記第2の端受部はそれぞれ、少なくとも1つの長手方向スロットを備え、前記少なくとも1つの長手方向スロットは、その中に前記ピンを受け取るように構成されている、請求項13に記載の椎体置換デバイス。
- 前記本体部材は、前記外壁から離れる方へ前記半径方向に延在する突起をさらに備え、前記突起は、前記本体部材の前記長手方向軸に対して平行な、前記外壁に延在するチャネルによって画定されている、請求項1に記載の椎体置換デバイス。
- 前記突起は、蟻継ぎ構成を有し、各チャネルは、V形状断面プロファイルを有する、請求項15に記載の椎体置換デバイス。
- 前記少なくとも1つの長手方向スロットは、前記第1の端受部および前記第2の端受部が前記本体部材に対して移動されることができる拡張長を制限する終端を有する、請求項14に記載の椎体置換デバイス。
- 前記第1の端部材および前記第2の端部材はそれぞれ、前記本体部材に対する前記第1の端部材および前記第2の端部材の位置を固定する係止機構を含む、請求項1に記載の椎体置換デバイス。
- 前記係止機構は、係止要素を受け取るように構成された係止ピン開口を含む、請求項18に記載の椎体置換デバイス。
- 前記第2の端部材の内壁は、前記本体部材の長手方向軸に対して半径方向に内外から前記第2の端受部を境界する、請求項1に記載の椎体置換デバイス。
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US13/475,279 US8591587B2 (en) | 2007-10-30 | 2012-05-18 | Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine |
US13/475,279 | 2012-05-18 | ||
PCT/US2013/041524 WO2013173682A1 (en) | 2012-05-18 | 2013-05-17 | Vertebral body replacement device and method for use of the device with the inserting tool |
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US9889018B2 (en) | 2015-03-23 | 2018-02-13 | Musc Foundation For Research Development | Expandable vertebral body replacement device and method |
US9775719B2 (en) | 2015-03-23 | 2017-10-03 | Musc Foundation For Research Development | Expandable vertebral body replacement device and method |
AU2017363425B2 (en) | 2016-11-28 | 2023-06-22 | Musc Foundation For Research Development | Expandable vertebral body replacement device and method |
CN112370221B (zh) * | 2020-10-26 | 2022-09-30 | 天衍医疗器材有限公司 | 腰椎椎体试模工具系统 |
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US7981157B2 (en) * | 2006-04-27 | 2011-07-19 | Warsaw Orthopedic, Inc. | Self-contained expandable implant and method |
US8182537B2 (en) * | 2007-10-30 | 2012-05-22 | Aesculap Implant Systems, Llc | Vertebral body replacement device and method for use to maintain a space between two vertebral bodies within a spine |
US8142441B2 (en) * | 2008-10-16 | 2012-03-27 | Aesculap Implant Systems, Llc | Surgical instrument and method of use for inserting an implant between two bones |
US20090112325A1 (en) * | 2007-10-30 | 2009-04-30 | Biospine, Llc | Footplate member and a method for use in a vertebral body replacement device |
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