JP7234261B2 - 拡張可能なスペーサーを備えた足首癒合システム - Google Patents
拡張可能なスペーサーを備えた足首癒合システム Download PDFInfo
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- JP7234261B2 JP7234261B2 JP2020565301A JP2020565301A JP7234261B2 JP 7234261 B2 JP7234261 B2 JP 7234261B2 JP 2020565301 A JP2020565301 A JP 2020565301A JP 2020565301 A JP2020565301 A JP 2020565301A JP 7234261 B2 JP7234261 B2 JP 7234261B2
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- A61F2002/3069—Revision endoprostheses
-
- 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
- A61F2/30721—Accessories
- A61F2002/30754—Implants for interposition between two natural articular surfaces
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
-
- 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
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
- A61F2002/4205—Tibial components
-
- 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
- A61F2/4202—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for ankles
- A61F2002/4207—Talar components
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Dentistry (AREA)
- Neurology (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Description
この出願は、あらゆる目的のために、その全体がこの参照により本明細書中に組み込まれる、2018年5月26日に出願された米国特許出願第15/990,633号に基づいており、パリ条約の下で、その利益を主張する。
このセクションは、拡張可能なスペーサー92と、髄内釘84および釘のための締結具96(例えばネジ80)からなる定着デバイス94とを含む足首癒合システム90によって例示される、本開示の足首癒合システムの概要を提供する(図5~12参照)。
このセクションは、足首領域70の骨を癒合する方法において実行され得る例示的なステップを説明し、選択されたステップは、図5の拡張可能なスペーサー92および定着デバイス94としての骨プレート150を使用して示される(図13~18参照)。このセクションで説明されるステップは、本開示のシステムコンポーネントおよび特徴の任意の組み合わせを使用して、任意の適切な順序および組み合わせで実行することができる。
以下の実施例は、足首癒合システム、拡張可能なスペーサー、および当該システムおよびスペーサーを使用した足首癒合および/または固定の方法のさらなる例示的な態様および実施形態を説明する。これらの実施例は、例示のみを目的としており、本開示の全範囲を限定するものではない。
この実施例は、それぞれ丸みを帯びかつ平坦化された対向する端部を有する例示的なスペーサーを説明する(図19~21参照)。
このセクションは、軸方向の貫通開口130を欠く拡張可能なスペーサー92c,92dの例示的な実施形態を説明する(図10~12のスペーサー92と比較されたい)(図22および図23参照)。スペーサー92cおよび92dは、とりわけ骨プレートおよび/または骨ネジと共に使用することができる。
この実施例は、締結具172を受け入れるための少なくとも一つの孔170を有する例示的な拡張可能なスペーサー92e、およびスペーサーと共に使用するための例示的なガイドデバイス174を説明する(図24~26参照)。
この実施例は、スペーサーの高さを変更するために回転可能なカラー188を有する例示的な拡張可能なスペーサー92f,92g、およびカラーを回転させるための例示的なツール190を説明する(図27~30参照)。
この実施例は、本開示のスペーサー、足首癒合システムおよび足首癒合方法の選択された実施形態を一連の指標付き条項として説明する。
条項A2.スペーサーは、第1および第2の骨接触表面領域間の距離を調整するためのネジ機構を含む、条項A1に記載のデバイス。
条項A3.ネジ機構は、第1および第2の骨接触表面領域間の距離を調整するために、そうした領域に対して回転可能であるネジ付き部材を含む、条項A2のデバイス。
条項A4.ネジ付き部材は雌ネジ付きカラーを含む、条項A3に記載のデバイス。
条項A5.スペーサーは、それぞれ第1および第2の骨接触表面領域を提供する第1のコンポーネントおよび第2のコンポーネントを含み、第1および第2のコンポーネントの一つはカラーとネジ係合状態で配置された雄ネジ付きシャフトを有する、条項A4に記載のデバイス。
条項A6.条項A4または条項A5に記載のデバイスを含み、カラーは円形に配置された一連の歯を有し、ツールが回転させられるとき、ツールを越えて一連の歯の個々の歯を連続的に前進させるように構成されたツールをさらに含むシステム。
条項A7.条項A1ないしA5のいずれかに記載のデバイスと、スペーサーが骨の間に配置されている間に第1および第2の骨を互いに対して定着させるために第1および第2の骨のそれぞれに固定されるように構成された定着デバイスとを含む足首癒合システム。
条項A8.取り付けデバイスが、釘、プレートまたは締結具を含む、条項A7に記載のシステム。
条項A9.第1の骨接触表面領域が略半球までの領域に対応する、条項A1ないしA5のいずれかに記載のデバイス。
条項A10.第1の骨接触表面領域が球の錐台に対応する、条項A1ないしA5およびA9のいずれかに記載のデバイス。
条項A11.スペーサーは中心軸線に沿ってデバイスを貫通する軸方向の開口を画定する、条項A1ないしA5,A9およびA10のいずれかに記載のデバイス。
条項A12.距離は中心軸線に対して平行に調整可能であり、骨接触表面領域のそれぞれが中心軸線上に中心が置かれる、条項A11に記載のデバイス。
条項A13.条項A11またはA12に記載のデバイスと、軸方向の開口を介してスペーサーを通って延びるように構成された釘とを含む足首癒合システム。
条項A14.第1の骨接触表面領域が、骨の内方成長および/または骨の上方成長を促進するように構成される、条項A1ないしA5およびA9ないしA12のいずれかに記載のデバイス。
条項A15.第1の骨接触表面領域が開放セル構造体によって形成される、条項A14に記載のデバイス。
条項A16.開放セル構造体がメッシュ、格子またはフォームを含む、条項A15に記載のデバイス。
条項A17.スペーサーが、第1の骨接触表面領域および内面領域を形成する第1のセクションを含み、第1のセクションは第1の骨接触表面領域から内面領域まで延びる複数の開口および/または複数の細孔を画定する、条項A14ないしA16のいずれかに記載のデバイス。
条項A18.第2の骨接触表面領域が平面である、条項A1ないしA5,A9ないしA12およびA14ないしA17のいずれかに記載のデバイス。
条項A19.第1および第2の骨接触表面領域間の距離は軸線に沿って調整可能であり、第2の骨接触表面領域は軸線に直交する、条項A18に記載のデバイス。
条項A20.スペーサーが、第1の骨接触表面領域を提供する第1のコンポーネントと、第2の骨接触表面領域を提供する第2のコンポーネントとを含み、第2のコンポーネントは、チューブと、このチューブから突出する複数の耳部とを含み、各耳部は、この耳部を第2の骨に固定する締結具を受け入れるように構成された孔を有する、条項A1ないしA5,A9ないしA12およびA14ないしA19のいずれかに記載のデバイス。
条項A21.各耳部は第2の骨接触表面領域と同一平面にある、条項A20に記載のデバイス。
条項A22.第1および第2の骨接触表面領域間の距離は、いずれかの骨接触表面領域の形状を変化させることなく調整可能である。条項A1ないしA5,A9ないしA12およびA14ないしA21のいずれかに記載のデバイス。
条項A23.第1の骨接触表面領域は骨の上方成長を促進する窪みおよび/または突起を含む、条項A1ないしA5,A9ないしA12およびA14ないしA22のいずれかに記載のデバイス。
条項A24.第2の骨接触表面領域は球の一部に対応する、条項A1ないしA5,A9ないしA12およびA14ないしA23のいずれかに記載のデバイス。
条項A25.第2の骨接触表面領域は、略半球までの領域に対応する、条項A24に記載のデバイス。
条項A26.第2の骨接触表面領域は球の錐台に対応する、条項A24またはA25に記載のデバイス。
条項A27.スペーサーは、第1の骨接触表面領域と交差すると共に雌ネジを有する孔を画定する。条項A1ないしA5,A9ないしA12およびA14ないしA26のいずれかに記載のデバイス。
条項A28.条項A27に記載のデバイスと、孔とネジ係合状態で配置されるように構成された締結具とを含む足首癒合システム。
条項A29.スペーサーに接続されるように構成され、かつ、孔と同軸であるガイド軸を規定するガイドデバイスをさらに含む、条項A28に記載のシステム。
条項A30.ガイドデバイスはガイド軸線を規定するチューブを含む、条項A29に記載のシステム。
条項A31.第1および第2の骨の一方が脛骨であり、第1および第2の骨の他方が距骨または踵骨である、条項A1ないしA5,A9ないしA12およびA14ないしA27のいずれかに記載のデバイス.
条項A32.第1の骨接触表面領域は付加製造によって形成される。条項A1ないしA5,A9ないしA12,A14ないしA28およびA31のいずれかに記載のデバイス。
条項A33.第1の骨接触表面領域は、局所的な高さのランダムな変化によって生み出される表面特徴を有する、条項A1ないしA5,A9ないしA12,A14ないしA28,A31およびA32のいずれかに記載のデバイス。
条項A34.第1および第2の骨接触表面領域は、そうした表面領域間の距離を変更するために互いに対して並進的に移動するように構成される、条項A1ないしA5,A9ないしA12,A14ないしA28およびA31ないしA33のいずれかに記載のデバイス。
条項B2.凹面を形成するステップは、球形リーマーを使用して第1の骨の一部を除去するステップを含む、条項B1に記載の方法。
条項B3.第1および第2の骨の一方が脛骨であり、第1および第2の骨の他方が距骨または踵骨である、条項B1またはB2に記載の方法。
条項B4.第2の骨接触表面領域が球の一部に対応し、第2の骨接触表面領域を受け入れるサイズとされた凹面を第2の骨に形成するステップをさらに含む、条項B1ないしB3のいずれかに記載の方法。
条項B5.第2の骨に平坦な表面領域を形成するステップをさらに含み、配置するステップは、第2の骨接触表面領域と平坦な表面領域とを互いに当接させるステップを含む、条項B1ないしB3のいずれかに記載の方法。
条項B6.スペーサーが第1の骨と第2の骨との間に留まっている間に、第1および第2の骨の相互配向を調整するステップをさらに含む、条項B1ないしB5のいずれかに記載の方法。
条項B7.定着させるステップは、釘、プレートまたは締結具を第1および第2の骨のそれぞれに固定するステップを含む、条項B1ないしB6のいずれかに記載の方法。
条項B8.固定するステップは、第1および第2の骨のそれぞれに釘を固定するステップを含み、釘はスペーサーを通って延びる、条項B7に記載の方法。
条項B9.固定するステップは、複数の締結具を使用して、第1および第2の骨のそれぞれにプレートを固定するステップを含む、条項B8に記載の方法。
条項B10.定着させるステップは、締結具をスペーサーに直接取り付けるステップを含む、条項B1に記載の方法。
条項B11.締結具を取り付けるステップは、スペーサーによって画定された孔とネジ係合状態で締結具を配置するステップを含む、条項B10に記載の方法。
条項B12.第1の骨と第2の骨との間の離隔距離を変更するために、第1および第2の骨接触表面領域間の距離を調整するステップをさらに含む、条項B1ないしB11のいずれかに記載の方法。
条項B13.対象の足首領域において実行され、距離を調整するステップは、対象の下肢の長さの差を低減する、条項B12に記載の方法。
条項B14.距離を調整するステップは、第1および第2の骨接触表面領域に対してスペーサーのネジ付き部材を回転させるステップを含む、条項B12またはB13に記載の方法。
条項B15.骨移植片をスペーサー内にかつ/またはスペーサー上に配置するステップをさらに含む、条項B1ないしB14のいずれかに記載の方法。
52 下腿
54 骨格足
56 脛骨
58 腓骨
60 足根骨
62 中足骨
64 指骨
66 距骨
68 踵骨
70 足首領域
72 距骨関節
74 距骨下関節
76 脛骨線維関節(下脛骨関節)
78 骨プレート
80 骨ネジ
80a ネジ
84 髄内釘
90 足首癒合システム
92 スペーサー
92a~g スペーサー
94 定着デバイス
96 締結具
100 上側セクション
102 下側セクション
104 上端部
106 下端部
108 調整機構
112 スペーサー軸線
114 距離
116 骨接触表面領域
116a 骨接触表面領域
118 相補的凹面
120 相補的凹面
122 球形インターフェース
124 球形インターフェース
130 軸方向貫通開口
132 表面特徴部
134 第1のコンポーネント
136 第2のコンポーネント
138 シャフト
140 雄ネジ
142 雌ネジ
150 骨プレート
152 球形リーマー
154 骨移植片
156 ギャップ
162 プロング
164 耳部
166 孔
168 表面領域
170 孔
172 締結具
174 ガイドデバイス
176 雌ネジ
178 端部
180 反対側端部
182 内側端部
184 ガイド軸線
186 チャネル
188 カラー
190 ツール
192 内側チューブ
194 外側チューブ
196 軸方向フランジ
198 軸方向スロット
200 貫通開口
202 雌ネジ
204 並進運動
206 矢印
208 ノーズ
210 孔
212 回転軸線
214 ハンドル部分
216 放射状突起
218 歯
220 接続部
222 環状溝
224 フランジ
226 口
227 内面領域
228 スロット
Claims (12)
- 足首領域(70)の第1の骨と第2の骨とを分離させるための移植可能なデバイスであって、前記第1の骨および前記第2の骨の一方は脛骨(56)であり、かつ、前記第1の骨および前記第2の骨の他方は距骨(66)または踵骨(68)であり、前記デバイスは、
前記第1の骨と前記第2の骨との相互分離を生じさせるための、前記第1の骨に当接させられるように構成された第1の骨接触表面領域(116)と、前記第2の骨に当接させられるように構成された第2の骨接触表面領域(116)と、を含む拡張可能なスペーサー(92)であって、前記第1および第2の骨接触表面領域(116,116)は互いに逆方向を向き、前記第1および第2の骨接触表面領域(116,116)間の距離は前記第1および第2の骨の離隔距離を変更するために調整可能であり、前記第1の骨接触表面領域(116)は球の一部に対応し、前記第1の骨に外科的に形成された凹面(118,120)内に少なくとも部分的に配置されるように構成される、拡張可能なスペーサー
を具備する移植可能なデバイス。 - 前記スペーサー(92)は、前記第1および第2の骨接触表面領域(116,116)間の距離を調整するために、前記第1および第2の骨接触表面領域(116,116)に対して回転可能であるネジ付き部材(138)を含む、請求項1に記載のデバイス。
- 前記ネジ付き部材(138)は円形に配置された一連の歯(218)を有し、ツール(190)が回転させられるときに前記ツール(190)を越えて前記一連の歯(218)の個々の歯を連続的に前進させるように構成された前記ツール(190)をさらに備え、前記ツール(190)は、前記ツール(190)のシャフト上に形成された放射状突起(216)を含み、前記放射状突起(216)は前記ネジ付き部材(138)の前記一連の歯(218)と係合する、請求項2に記載のデバイスを含むシステム(90)。
- 足首癒合システム(90)であって、
請求項1に記載のデバイスと、
前記スペーサー(92)が前記骨間に配置されている間に、第1および第2の骨を互いに対して定着させるために、前記第1および第2の骨のそれぞれに対して固定されるように構成された定着デバイス(94)と
を含む足首癒合システム。 - 前記定着デバイス(94)は、釘、プレートまたは締結具を含む、請求項4に記載のシステム(90)。
- 前記第1の骨接触表面領域(116)は略半球までの領域に対応する、請求項1に記載のデバイス。
- 前記スペーサー(92)は、中心軸線(112)に沿って前記デバイスを通って延在する軸方向開口(130)を画定する、請求項1に記載のデバイス。
- 前記第1の骨接触表面領域(116)は、骨の内方成長および/または骨の上方成長を促進するように構成される、請求項1に記載のデバイス。
- 前記第2の骨接触表面領域(116)が平面である、請求項1に記載のデバイス。
- 前記第1の骨接触表面領域(116)と前記第2の骨接触表面領域(116)との間の距離は、高さ調整機構(108)によって調整可能である、請求項1に記載のデバイス。
- 前記スペーサー(92)は、前記第1の骨接触表面領域(116)と交差すると共に雌ネジ(176)を有する孔(170)を画定する、請求項1に記載のデバイス。
- 請求項11に記載されたデバイスを備えたシステム(90)であって、前記スペーサー(92)に接続されるように構成されると共に、前記孔(170)と同軸であるガイド軸線(184)を規定するガイドデバイス(174)をさらに備え、前記ガイドデバイス(174)は、前記ガイド軸線(184)に沿って前記スペーサー(92)の前記雌ネジ(176)と係合する締結具(172)を案内するように構成される、システム。
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