JP4315816B2 - 人工椎間板 - Google Patents
人工椎間板 Download PDFInfo
- Publication number
- JP4315816B2 JP4315816B2 JP2003587291A JP2003587291A JP4315816B2 JP 4315816 B2 JP4315816 B2 JP 4315816B2 JP 2003587291 A JP2003587291 A JP 2003587291A JP 2003587291 A JP2003587291 A JP 2003587291A JP 4315816 B2 JP4315816 B2 JP 4315816B2
- Authority
- JP
- Japan
- Prior art keywords
- fixing member
- column
- composite structure
- artificial
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 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
- A61F2002/30891—Plurality of protrusions
- A61F2002/30892—Plurality of protrusions parallel
-
- 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
- A61F2002/30932—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for retarding or preventing ingrowth of bone tissue
-
- 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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
- A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
-
- 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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0015—Kidney-shaped, e.g. bean-shaped
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
・本質的に、健康な椎間板(例えば腰椎間板)と同一の関節を実現できる。
・本質的に、健康な椎間板(例えば腰椎間板)と同一の運動学的動作を実現できる。
・本質的に、健康な椎間板(例えば腰椎間板)と同一の動作を実現できる。
・移植物質と健康な椎間板(例えば腰椎間板)の静的特性はほぼ同一である。
・移植物質は生体適合性を有する。
・本装置は、後方または前方アプローチによって移植できる。
・本装置は、比較的短時間(例えば90分間前後)で設置できる。
・本装置は、疲労検査において好ましい結果が得られた(つまり、本装置は10×106サイクル後にも使用可能である)。
・本装置は、静荷重、せん断荷重、また、排除を誘発する試験にも耐え得る。
・本装置は椎骨本体に対して迅速に定着可能である。
・本装置は、その接触面における椎骨本体との接触応力を最小化する。
・本装置は自動付着が可能である。
Claims (28)
- 人工椎間板であって、
第1定着部材と、
第2定着部材と、
前記第1及び第2定着部材間に配置した複合構造とを具備しており、前記複合構造はePTFEからなる柱と、エラストマからなる柱充填材とを備える人工椎間板。 - 前記複合構造が、少なくとも1本の軸について、実質的に健康な人間の椎間板の荷重対変位の挙動と実質的に類似した荷重対変位の挙動を備えるように構成されている請求項1に記載の人工椎間板。
- 前記荷重対変位の挙動が、(a)荷重の時間当たりの作用の関数である動的挙動、(b)運動的挙動、(c)静的挙動、からなるグループから選択される請求項2に記載の人工椎間板。
- 前記荷重対変位の挙動が、複合構造の圧縮に要する力の量と複合構造の変位との間の非線形関係を有する請求項2に記載の人工椎間板。
- 前記複合構造の剛性は、該複合構造が圧縮されるにつれて増加する請求項4に記載の人工椎間板。
- 前記柱が、これを貫通する穴を有する請求項2に記載の人工椎間板。
- 少なくとも1本の前記柱と、該柱に設けた前記穴の断面が実質的に円形である請求項6に記載の人工椎間板。
- 前記各柱及び柱に設けた穴の断面が実質的に円形である請求項7に記載の人工椎間板。
- 前記柱充填材が該柱に設けた穴内に配置されている請求項8に記載の人工椎間板。
- 前記エラストマが、(a)シリコン、(b)ウレタン、(c)熱可塑性エラストマ、を含むグループから選択される請求項9に記載の人工椎間板。
- 前記複合構造が、前記第1定着部材及び第2定着部材のうち少なくとも一方に取り付けられている請求項6に記載の人工椎間板。
- 前記複合構造が以下のグループから選択した機構によって取り付けられており、該グループは、
(a)前記柱に設けた穴内に取り付けた圧縮フェルールと、前記第1定着部材及び第2定着部材のうちの一方を貫通する穴の内径の間で、前記柱の一部分を半径方向に圧縮すること、及び
(b)前記柱の端部をフレア状に広げ、かつ、該柱のフレア状に広がった部分を、捕獲構成部分と、前記第1定着部材及び第2定着部材のうちの一方の外面との間で圧縮することと、からなる請求項11に記載の人工椎間板。 - 前記柱の端部をフレア状に広げる前に、前記柱が、前記第1定着部材及び第2定着部材のうちの一方に設けた穴を通って挿入される請求項12に記載の人工椎間板。
- 前記捕獲構成部分が、以下のグループから選択した機構によって、該第1定着部材及び第2定着部材のうちの一方に取り付けられており、該グループは、
(a)前記第1定着部材及び第2定着部材の一方に該捕獲構成部分をねじ切りする機構と、
(b)前記第1定着部材及び第2定着部材の一方に該捕獲構成部分を接着剤で接着する機構と、
(c)前記第1定着部材及び第2定着部材の一方に該捕獲構成部分を圧入させる機構と、
(d)少なくとも1個のねじ切りした締め具を介して、前記第1定着部材及び第2定着部材のうちの一方に該捕獲構成部分を固定する機構と、からなる請求項12に記載の人工椎間板。 - 前記柱が第1端部及び第2端部を備えており、少なくとも1本の前記柱が、(a)融接、(b)化学結合、(c)超音波溶接、からなるグループから選択した機構によって、フランジに取り付けられている請求項6に記載の人工椎間板。
- 前記柱が、フランジへの取り付けを補助する材料で処理されており、この処理が、(a)該柱を前記材料で充填すること、(b)該柱を前記材料でコーティングすること、からなるグループから選択される請求項15に記載の人工椎間板。
- (a)圧入捕獲リングの後部の捕獲、
(b)前記第1定着部材及び第2定着部材のうちの少なくとも一方に対して前記フランジをねじ切りすること、
(c)前記少なくとも1個のねじ切りした締め具を介して、前記フランジを、該第1定着部材及び第2定着部材のうちの少なくとも一方に取り付けること、
からなるグループから選択した機構によって、前記フランジが前記第1定着部材及び第2定着部材の内の少なくとも一方に取り付けられている請求項15に記載の人工椎間板。 - 前記柱が、(a)該柱内部への生体内部成長、(b)該柱への生体付着、のうちの少なくとも一方の回避を補助する材料で充填されている請求項1に記載の人工椎間板。
- 前記柱が、(a)該柱内部への生体内部成長、(b)該柱への生体取り付け、のうちの少なくとも一方の回避を補助する材料でコーティングされている請求項1に記載の人工椎間板。
- 前記人工椎間板が、(a)後方移植、(b)前方移植、からなるグループから選択した少なくとも1つの方法によって移植されるように構成されている請求項1に記載の人工椎間板。
- 人工椎間板であって、
第1定着部材と、
第2定着部材と、
前記第1定着部材と第2定着部材の間に配置した少なくとも2個の複合構造とを具備しており、第1の前記複合構造が、ePTFEから成る第1柱と、エラストマから成る第1柱充填材とを備え、また、第2の前記複合構造が、ePTFEから成る第2柱と、エラストマから成る第2柱充填材とを備えている人工椎間板。 - 前記第1複合構造及び第2複合構造は、該第1複合構造及び第2複合構造が、その組み合わせにより、少なくとも1本の軸について、実質的に健康な人間の椎間板の荷重対変位の挙動と実質的に類似する荷重対変位の挙動を有する請求項21に記載の人工椎間板。
- 前記荷重対変位の挙動が、(a)荷重の時間当たりの作用の関数である動的挙動、(b)運動学的挙動、(c)静的挙動、からなるグループから選択される請求項22に記載の人工椎間板。
- 前記荷重対変位の挙動が、前記第1複合構造及び第2複合構造の圧縮に要する力の量と、該第1複合構造及び第2複合構造の変位との間の非線形関係を有する請求項22に記載の人工椎間板。
- 前記第1複合構造及び第2複合構造の剛性は、該第1複合構造及び第2複合構造の各々が圧縮されるにつれて増加する請求項24に記載の人工椎間板。
- 前記人工椎間板が、(a)後方移植、(b)前方移植、からなるグループから選択した少なくとも1つの方法によって移植されるように構成されている請求項21に記載の人工椎間板。
- 人工椎間板であって、
第1定着部材と、
第2定着部材と、
前記第1定着部材と第2定着部材の間に配置したePTFEの実質的に堅いコードとを備えている人工椎間板。 - 第1組立品と第2組立品とからなる人工椎間板であって、
第1組立品が、
(a)第1定着部材と、
(b)第2定着部材と、
(c)前記第1組立品の第1定着部材と前記第1組立品の第2定着部材の間に配置した複合構造と、を備えており、前記第1組立品の複合構造が、ePTFEから成る柱と、エラストマから成る柱充填材とを含み、さらに、
第2組立品が、
(a)第1定着部材と、
(b)第2定着部材と、
(c)前記第2組立品の第1定着部材と第2組立品の第2定着部材との間に配置した複合構造と、を備えており、前記第2組立品の複合構造が、ePTFEから成る柱と、エラストマから成る柱充填材とを備えている人工椎間板。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37584202P | 2002-04-25 | 2002-04-25 | |
PCT/US2003/012872 WO2003090650A1 (en) | 2002-04-25 | 2003-04-25 | Artificial intervertebral disc |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005523110A JP2005523110A (ja) | 2005-08-04 |
JP4315816B2 true JP4315816B2 (ja) | 2009-08-19 |
Family
ID=29270704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003587291A Expired - Fee Related JP4315816B2 (ja) | 2002-04-25 | 2003-04-25 | 人工椎間板 |
Country Status (5)
Country | Link |
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US (1) | US6960232B2 (ja) |
EP (1) | EP1496819A4 (ja) |
JP (1) | JP4315816B2 (ja) |
AU (1) | AU2003228697B2 (ja) |
WO (1) | WO2003090650A1 (ja) |
Families Citing this family (80)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5836311A (en) * | 1995-09-20 | 1998-11-17 | Medtronic, Inc. | Method and apparatus for temporarily immobilizing a local area of tissue |
US6648916B1 (en) * | 1997-12-10 | 2003-11-18 | Sdgi Holdings, Inc. | Osteogenic fusion device |
US6899716B2 (en) * | 2000-02-16 | 2005-05-31 | Trans1, Inc. | Method and apparatus for spinal augmentation |
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- 2003-04-25 WO PCT/US2003/012872 patent/WO2003090650A1/en active Application Filing
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AU2003228697B2 (en) | 2009-04-02 |
EP1496819A4 (en) | 2007-02-14 |
JP2005523110A (ja) | 2005-08-04 |
AU2003228697A1 (en) | 2003-11-10 |
US6960232B2 (en) | 2005-11-01 |
EP1496819A1 (en) | 2005-01-19 |
WO2003090650A1 (en) | 2003-11-06 |
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