JPS61122859A - 人工関節間板 - Google Patents

人工関節間板

Info

Publication number
JPS61122859A
JPS61122859A JP60194012A JP19401285A JPS61122859A JP S61122859 A JPS61122859 A JP S61122859A JP 60194012 A JP60194012 A JP 60194012A JP 19401285 A JP19401285 A JP 19401285A JP S61122859 A JPS61122859 A JP S61122859A
Authority
JP
Japan
Prior art keywords
plate
spacing member
disc according
artificial
closure plate
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.)
Granted
Application number
JP60194012A
Other languages
English (en)
Other versions
JPH0552218B2 (ja
Inventor
カリン、ビユツトナー―ヤンツ
ベルント、デア
クラウス‐ペーター、エルケル
ハンス―ヨアヒム、ヘリシユ
クルト、シエルナク
ローラント、シユーマン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FUNBORUTO UNIBERUJITEETO TSUU
FUNBORUTO UNIBERUJITEETO TSUU BERLIN
Original Assignee
FUNBORUTO UNIBERUJITEETO TSUU
FUNBORUTO UNIBERUJITEETO TSUU BERLIN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DD26695984A external-priority patent/DD248018A3/de
Priority claimed from DD27319285A external-priority patent/DD234609B1/de
Priority claimed from DD27879285A external-priority patent/DD239523B3/de
Priority claimed from DD27879385A external-priority patent/DD239524B3/de
Application filed by FUNBORUTO UNIBERUJITEETO TSUU, FUNBORUTO UNIBERUJITEETO TSUU BERLIN filed Critical FUNBORUTO UNIBERUJITEETO TSUU
Publication of JPS61122859A publication Critical patent/JPS61122859A/ja
Publication of JPH0552218B2 publication Critical patent/JPH0552218B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/3006—Properties of materials and coating materials
    • A61F2002/3008—Properties of materials and coating materials radio-opaque, e.g. radio-opaque markers
    • 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
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/3039—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove with possibility of relative movement of the rib within the groove
    • A61F2002/30398—Sliding
    • A61F2002/304—Sliding with additional means for limiting said sliding
    • 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
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • 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
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30639—Features concerning the anatomical functioning or articulation of the prosthetic joint having rolling elements between both articulating surfaces
    • A61F2002/30642—Features concerning the anatomical functioning or articulation of the prosthetic joint having rolling elements between both articulating surfaces having a single rolling (or sliding) ball articulating between two cups
    • 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
    • A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30649—Ball-and-socket joints
    • A61F2002/30663—Ball-and-socket joints multiaxial, e.g. biaxial; multipolar, e.g. bipolar or having an intermediate shell articulating between the ball and the socket
    • 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
    • A61F2002/30891—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
    • 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
    • A61F2002/30894—Plurality of protrusions inclined obliquely with respect to each other
    • 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
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
    • 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
    • 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
    • A61F2310/00179—Ceramics or ceramic-like structures

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Cardiology (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)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、隣接する２個のを椎体の基板と蓋板との間に
挿入されるパルプ質（ｐｕ　ｌρｏｓｕｓ）の槙の多分
割構造の人工禎装体に関する。
〔従来技術と問題点〕
退化、損傷あるいは破損した関節間板を交換するか少な
くとも補充しようとする二連の装置が知られている。米
国特許第４４０１１１２号明細書には圧力支持を保証す
るだけで、生理的な運動なしに治癒する装置が記載され
ている。病理的に変形した関節間板を、パルプ質の核を
手術で除去した後に生ずる中空室をその場所で重合され
るシリコンゴムで充填することによって代用すること巳
よ既に知られている。また米国特許第４３４９９２１号
明細書には木くぎ状の人工関節関板が記載されている。
上側部分と下側部分と両者の間の押しボタン状、円盤状
あるいは球状の中間部材から成っている金属製、金属−
合成樹脂製あるいは合成樹脂製の多分割構造の人工関節
関板も知られている（ドイツ連邦共和国特許第３０２３
３５３号明細書、同国公開特許第２２６３８４２号明Ｗ
Ｊｉ！Ｆ２スイス特許第６２４５７５号明細書、同第６
４０１３１号明細書参照）、特殊な構造が米国特許第４
３０９７７７号明細書およびソ連発明者証第８９５４３
３号で知られている。
これらの周知の装置は、パルプ質の核の機能が部分的に
しか代用されないか、十分に代用できないという欠点を
有している。を椎体のスポンジ質への軸受面の加工は、
一部で患者に長い処置を必要とするという欠点を有して
いる。更にスポンジ質に比べて非常に硬いを椎体の外側
層が破ｍされるか、孔があけられることは望ましくない
、太きな接触荷重、不均一な圧力分布およびないし材料
の不撓性により、情死や骨吸収の危険があるばかりでな
く、を椎体を機械的に破損する危険もある。
別の問題は実施する手術、および人工関節関板を使用す
る場合の位置変化に関する必要な保持が得られないこと
から生ずる。
〔発明の目的〕
本発明の目的は、対応するを柱における間隔保持ないし
間隔の回復および生理的な運動を保証するようなパルプ
質の核のできるだけ価値ある人工補装体を作ることにあ
る。更に長い採用時間にわたって、位置変位をできる限
り防止した状態で機能を保証しようとするものである。
本発明の課題は、生化学および生物機械的な許容誤差を
有し、圧力を受ける際に形状が安定し、隣接するを椎体
の大きな加工を必要とせずに採用でき、隣接するを椎体
の機械的な損傷を防止するようなパルプ質の核の人工補
装体を作ることにある。
〔発明の概要および効果〕
本発明によればこの課題は、人工関節関板が２個の閉鎖
板およびこれらの間にある間隔部材から構成されている
ことによって達成できる。閉鎖板と間隔部材はその協働
作用においてほぼ生理学的にを椎体に近づけることがで
きる。
第１の実施形態において間隔部材は部分的に球面を有し
、レンズ状に形成され、平らな案内縁を有し、閉鎖板か
らの滑り落ちや税落を防止するために外側に環状突起を
備えている０間隔部材の高さは椎間室の高さに応じて変
化される。
対称な閉鎖板はその中央が凹面に形成され、同様に平ら
な案内縁を有し、折り曲げ部に続いて歯を備えている。
閉鎖板の折り曲げは矢状のを柱湾曲に相応して行われる
ので、椎間室の腹側および背側の高さの違いを考慮でき
る。ＷＪ車な内部手術の方向づけのために、腹側のマー
クが用いられる。
凹面の曲率は間隔部材の球面部分の曲率に正確に対応し
ている。
閉鎖板の両側面に平面的な広がり部を設けることができ
、この広がり部は脊椎体基板ないし脊椎体蓋板のできる
だけ大きな面を受けるように決められる。それによって
電位面積当たりの圧力荷重が減少される。加えであるい
は別個に閉鎖板の支持面を、凹面中央部分の背面と折り
曲げられた案内縁との間の中空室を生物的に活性である
異形塑性（ａｌｌｏｐｌａｓｔｉｓｃｈｅｍ）材料から
成る板で充填することによって拡大することができる。
骨セメントの使用も同様に考えられる。閉鎖板の中央部
分を緻密に、即ち背面に中空室なしに作ることもできる
。
また閉鎖板全体に緻密な材料を使用することもできる。
そのために脊椎体基板ないし脊椎体蓋板が接するｗＩｖ
ＩＩな閉鎖板に、凹面中央部分および間隔部材の環状突
起を収容する環状１が加工される。
閉鎖板および間隔部材は移植技術で定評のある材料で作
られ、例えば閉鎖板は錆びない全屈で作られ、間隔部材
は引張りおよび圧縮に強い医療用ポリエチレンあるいは
ポリウレタンで作られる。その逆に材料を組み合わせる
ことも考えられる。生物的に活性である別の異形塑性材
料を使用することもできる。閉鎖板並びに間隔部材はく
低摩げによって）破片を最少にするために接触面が鳥Ｖ
ｒ磨されている。
椎間室における確実な移植係止に対して、閉鎖板の下側
面における縁部固定歯およびないし平面的な歯が用いら
れる。歯あるいは閉鎖板下側面全体を生物活性的に被覆
することができる。また閉鎖板を骨セメントで係止する
こともできる。
間隔部材の上側面と下側面および閉鎖板の隣接する面が
シリンダのピッチ面であり、これらの面は一方の関節結
合範囲から他方の関節結合範囲に対して９０”だけ回転
されている０、閉鎖板は円形あるいはほぼ楕円形をし、
間隔部材はそれに対して対称的で小さい。
低摩擦原理で作用する人工関節関板は、凹面あるいは凸
面状に湾曲された運動平面の位置に応して４つの異なっ
た実施形態で作られる。人工関節関板は椎間室の頭蓋側
から尾側および腹側から背側への伸びに応して高さが変
化できるように形成できる。中央部分の望ましくない位
置変化を補助的に防止するために、そこに頭蓋側および
尾側に延びる中央ピンを設けることができる。このピン
は閉鎖板に加工された凹所に係合する。その凹所は好ま
しくは円形あるいは溝状に形成される。逆に閉鎖板にピ
ンを設け、中央部分に凹所を設けることもできる。この
実施形態において荷重された際、２つの運動範囲のうち
の１つにおいて転がり運動が行われ、山の運動範囲にお
いて連行滑り運動が行われ、その場合間隔部材は運動過
程中にその位置が変化し、閉鎖板はを椎体において例え
ば歯を介して安定して係止されたままである。
なお２個の対称な閉鎖板がその中央部分が凸面１ｋに形
成され、間隔部材がシリンダ状に形成されその両端が凹
面状に形成されている人工関節関板も考えられる。その
場合凹面および凸面の曲率は同じである。ポリウレタン
で作られたシリンダ状の間隔部材には、大きな圧縮荷重
の影響で生ずるポリウレタンの冷凍（Ｋａｌｔｆｌｕｓ
ｓ）を避けるか制限するために、固いブツシュが設けら
れる。このプフ／ユの高さは、閉鎖板との直接接触を防
止するために、間隔部材より低く決められる。
閉鎖板の凸面中央部分に補助的に間隔部材の凹所に係合
するピンを没けることもできる。この凹所の直径はピン
の直径より大きく決められる。かかる構造は人工関節関
板の最大運動を制限し、間隔部材の無視できない位置変
化を確実に防止する。
Ｘ線で表示するためにさもなければ見えない合成樹脂部
品に相応したマークが付けられる。
本発明により初めてバルブ質の核のほぼ完全な代用品が
得られ、対応するを柱部分において生理的な運動を保証
できる。
〔実施例〕
以下図面に示す実施例に基づいて本発明の詳細な説明す
る。
実施例　１　（第１図〜第３図） 閉鎖板は錆びない金属で作られ、凹面状に形成された中
央部分ｌと環状の平らな案内縁２とを有している。閉鎖
板の折り曲げられた縁には、を椎体への確実な係止を保
証する歯３が設けられている。係止は緻密な実施例にお
ける縁由、平面的な歯あるいは骨セメントで行える。係
止は生物学的に活性である。を椎体のを柱前彎を保持す
るために折り曲げ部の前方縁は後方縁よりも高い。間隔
部材は凸面状の中央部分４を有し、その曲率は閉鎖板の
凹面中央部分１の曲率に正確に対応している０間隔部材
は同様に環状の平らな案内縁５を備え、滑り落ちを防止
するために環状突起６を有している０間隔部材の高さは
椎間空間の個々の条件に対応して形成される０間隔部材
は生理的に合っている材料で作られ、閉鎖板と同様に破
片を最少にするために高研磨されている。間隔部材はＸ
線で識別できるマークが付けられる。
実施例　２（第４図〜第５図） 閉鎖板は実施例１に記載したものと同様であるが、両側
に平面的な広がり部７を備えている。この平面的な広が
り部７は脊椎体基板ないし脊椎体蓋板の曲率に合わされ
る。
平らな案内縁２の下側の中空室は異形塑性材料から成る
板８で充填されている。この中空室は骨セメントで充填
したり、始めから緻密な中央部分を使用することもでき
る。閉鎖板は生理的に合っている材料で作られている。
実施例　３（第６図） 多分割構造の人工関節関板の閉鎖板はいわゆる緻密な閉
鎖板９として形成されている。この閉鎖板９には凹面中
央部分、ｌおよび環状溝１０が加工され、両者の間に案
内縁２が設けられている。同様に歯３が設けられている
。緻密な閉鎖板９の曲率は脊椎体基板ないし脊椎体蓋板
の曲率に対応される。
実施例　４（第７図〜第８図） 人工関節関板は円周が同じほぼ楕円形あるいは円形の閉
鎖板１１とこれと対称な小さな間隔部材１２とから成っ
ている０間隔部材１２の上側面と下側面および閉鎖板１
１の隣接面は、互いに関節結合する部分と同じ曲率をし
たシリンダのピッチ面に対応し、これらはその運動平面
において互いに９０°だけ回転されている。
この人工関節関板の機能において、一方の運動範囲にお
いて転がり運動が行われ、他方の運動範囲において連行
滑り運動が行われ、その場合運動工程中において間隔部
材はその位置が変化し、閉鎖板はを椎体に安定して係止
されたままである。
実施例　５（第９図〜第１Ｏ図） 人工関節関板は実施例４と同様に形成されているが、こ
れは円形凹所１４あるいは溝状凹所１５に係合する［Ｕ
Ｉｉ側および尾側に延びる中央ピン１３を有している。
ピン１３と凹所１４．１５を逆に配置することもできる
。
実施例　６　（第１１図および第１３図）人工関節関板
は凸面閉鎖板１６および凹面状端部１７を持ったシリン
ダ状間隔部材から成っている０間隔部材は固いブソソユ
１８で取り囲まれている。凸面および凹面の曲率は同じ
である。閉鎖板との接触を防止するために、ブッンユ１
８の高さは間隔部材より低くされている。
実施例　７（第１２図） 人工関節関板は実施例６と同様に形成されているが、凸
面閉鎖板１６は円形凹所２０に係合する頭蓋側ないし尾
（Ｉ’Ｊに向いたピン１９を有している。
凹所２０の直径はピン１９の直径より大きい。
実施例　８　（第１４図） 人工関節関板は実施例６あるいは実施例゛ＩとＩ１１様
に形成されているが、凸面閉鎖板１６は両側に横倒法が
り部２１を有している。
【図面の簡単な説明】
第１ａ図は閉鎖板の側面図、第１ｂ図は閉鎖板を１８０
°回転した状態の断面図、第２図は間隔部材の断面図、
第３図は閉鎖板の平面図、第４図は横の広がり部を持っ
た閉鎖板の断面図（第５図のＡ−Ａ線に沿う断面図）、
第４ａ図は第４図のＢ−Ｂに沿う断面図、第５図は４ｔ
Ｘ（個の広がり部を持った閉鎖板の平面図、第６図は緻
密な閉鎖板の平面図１．第６ａ図は第６図のＣ−Ｃ線に
沿う断面図、第７図は９０゛だけ回転された運動平面に
おける人工関節関板の側面図、第８図は９０°だけ回転
された運動平面における人工関節関板の側面図、第９図
は保持ピンと円形凹所を持った人工関節関板の側面図、
第９ａ図は第９図のＤ−Ｄ線に沿う部分断面図、＠１０
図は保持ピンと溝状凹所とを持った人工関節関板の側面
図、第ｔＯａ図は第１０図のＥ−Ｃ線に沿う部分断面図
、第１１図は凸面閉鎖板および両端が凹面のシリンダ状
間隔部材を持った人工関節関板の側面図、第１２図は保
持ピンを持９た第１１図に相応した人工関節関板の断面
図、第１３図はシリンダ状間隔部材の第１１図における
Ｆ−Ｆｉｌｌに沿う断面図、第１４図は横倒法がり部を
持った第１１図に相応した人工関節関板の平面図である
。 ｌ：閉鎖板の凹面中央部分、２：閉鎖板の案内縁、３：
歯、４：間隔部材の凸面中央部分、５：間隔部材の案内
縁、６：環状突起、７：債側広がり部、８：異形塑性材
料から成る板、９：緻密な閉鎖板、９：ｙＪ状状溝ｌｌ
ニジリンダ状運動面を持った閉鎖板、１２ニジリンダ状
運動面を持った間隔部材、１３−ピン、１４：円形凹所
、１５・１状凹所、１６；凸面閉鎖板、１７：シリンダ
状間隔部材、１８：ブフノニ、１９．ピン、２０・凹所
、２１−積側広がり部を持った凸面閉鎖扱６（、ｏ　　
　　　　　　　　　■ Ｏ。 Ｌ　　　　　　　　　　　　　Ｌ マー　　　〜　　　　で− ＼１　　　　τ１１　　　　　　　τ１５■ ｃカ ぐ　−のへ−ぐ　匡 で−で７　　で−〒１　　で−　　　　　　　　〒−マ
１１ Ｆｉｇ、１１ Ｆｉｇ、　１３ Ｆｉｇ、　１２ Ｆｉｇ、　１４ 手続　ネ甫　正　書　（方式） 昭和６０年１２月２６日 特許庁長官　宇　買　道　部　殿 １、事件の表示 昭和６０年　特許願　第１９４０１２号２、発明の名称 人工関節関板 ３、補正をする各 事件との関係　　特許出願人 フンボルトーウニベルジテート、ツー、ベルリン ４、代　理　人　（郵便番号１００） 昭和６０年１１月６白 く発送日　昭和６０年１１月２６日） ６、補正の対象 願書の看四十の４−一、特許出願人の欄、委任状及び図
面。 ７、？ＩＩｉ正の内容

Claims (1)

  1. 【特許請求の範囲】 １、２個の対称な閉鎖板と間隔部材とから成る人工関節
    間板において、閉鎖板が凹面状に形成された中央部分（
    １）を有し、その回りに環状の平らな案内縁（２）を備
    え、この案内縁（２）の外側縁が折り曲げられ歯（３）
    を有し、対応する間隔部材が凸面中央部分（４）を有し
    、その回りに平らな環状案内縁（５）および環状突起（
    ６）を備えていることを特徴とする人工関節間板。 ２、閉鎖板の凹面中央部分（１）の曲率が間隔部材の凸
    面中央部分（４）の曲率に相応していることを特徴とす
    る特許請求の範囲第１項記載の人工関節間板。 ３、前方縁における閉鎖板の外側縁の折り曲げが後方縁
    におけるより高いことを特徴とする特許請求の範囲第１
    項または第２項記載の人工関節間板。 ４、平らな案内縁（２）の下側の中空室を異形塑性材料
    から成る板（８）およびないし骨セメントで充填するか
    、緻密な中央部分を用いることを特徴とする特許請求の
    範囲第１項ないし第３項のいずれかに記載の人工関節間
    板。 ５、緻密な閉鎖板（９）に凹面中央部分（１）および環
    状溝（１０）が加工され、両者の間に案内縁（２）が設
    けられていることを特徴とする特許請求の範囲第１項な
    いし第３項のいずれかに記載の人工関節間板。 ６、２個の対称な閉鎖板と間隔部材とから成る人工関節
    間板において、間隔部材（１２）の上側面と下側面およ
    び閉鎖板（１１）の隣接面がシリンダのピッチ面であり
    、これらの面が一方の関節結合範囲から他方の関節結合
    範囲に対して互いに９０°回転された運動面を有してい
    ることを特徴とする人工関節間板。 ７、間隔部材（１２）が頭蓋側および尾側に延びるピン
    （１３）を備え、このピン（１３）がそれより大きな直
    径の円形凹所（１４）あるいは溝状凹所（１５）に係合
    することを特徴とする特許請求の範囲第６項記載の人工
    関節間板。 ８、閉鎖板（１１）がピン（１３）を備え、間隔部材（
    １２）が円形凹所（１４）あるいは溝状の凹所（１５）
    を有していることを特徴とする特許請求の範囲第６項ま
    たは第７項記載の人工関節間板。 ９、２個の対称な閉鎖板と間隔部材とから成る人工関節
    間板において、閉鎖板（１６）が凸面状をし歯（３）を
    備え、シリンダ状の間隔部材（１７）が凹面状に形成さ
    れた端部を有し、耐圧ブッシュ（１８）で取り囲まれて
    いることを特徴とする人工関節間板。 １０、凸面および凹面の曲率が同じであることを特徴と
    する特許請求の範囲第９項記載の人工関節間板。 １１、椎間室の頭蓋側から尾側および腹側から背側の膨
    張に相応して高さ変化するように形成されていることを
    特徴とする特許請求の範囲第１項ないし第１０項のいず
    れかに記載の人工関節間板。 １２、合成樹脂がＸ線で識別でいるマークを有している
    ことを特徴とする特許請求の範囲第１項ないし第１１項
    のいずれかに記載の人工関節関板。 １３、閉鎖板が好ましくは錆びない金属で作られ、間隔
    部材が好ましくは圧縮および引っ張りに強い医療ポリエ
    チレンで作られていることを特徴とする特許請求の範囲
    第１項ないし第１２項のいずれかに記載の人工関節間板
    。 １４、閉鎖板並びに間隔部材に対し異形塑性材料例えば
    生物学的に活性のセラミックあるいはポリウレタンが用
    いられることを特徴とする特許請求の範囲第１項ないし
    第１３項のいずれかに記載の人工関節間板。 １５、閉鎖板が両側面に平面状の広がり部（７、２１）
    を備えていることを特徴とする特許請求の範囲第１項な
    いし第９項のいずれかに記載の人工関節間板。 １６、歯（３）が縁固定歯であるか平面的な歯であるこ
    とを特徴とする特許請求の範囲第１項、第６項および第
    ９項のいずれかに記載の人工関節間板。 １７、歯（３）およびないし閉鎖板の脊椎体基板ないし
    脊椎体蓋板の側が生物学的に活性に被覆されていること
    を特徴とする特許請求の範囲第１６項記載の人工関節間
    板。
JP60194012A 1984-09-04 1985-09-04 人工関節間板 Granted JPS61122859A (ja)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DD61F/266959-0 1984-09-04
DD26695984A DD248018A3 (de) 1984-09-04 1984-09-04 Bandscheibenendoprothese
DD27319285A DD234609B1 (de) 1985-02-12 1985-02-12 Abschlussplatte fuer eine mehrteilige endoprothese des nucleus pulposus
DD61F/273192-6 1985-02-12
DD27879285A DD239523B3 (de) 1985-07-19 1985-07-19 Bandscheibenendoprothese
DD61F/278792-4 1985-07-19
DD61F/278793-2 1985-07-19
DD27879385A DD239524B3 (de) 1985-07-19 1985-07-19 Bandscheibenendoprothese

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP5005315A Division JPH0757229B2 (ja) 1984-09-04 1993-01-14 人工関節間板

Publications (2)

Publication Number Publication Date
JPS61122859A true JPS61122859A (ja) 1986-06-10
JPH0552218B2 JPH0552218B2 (ja) 1993-08-04

Family

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Family Applications (2)

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JP60194012A Granted JPS61122859A (ja) 1984-09-04 1985-09-04 人工関節間板
JP5005315A Expired - Lifetime JPH0757229B2 (ja) 1984-09-04 1993-01-14 人工関節間板

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JP5005315A Expired - Lifetime JPH0757229B2 (ja) 1984-09-04 1993-01-14 人工関節間板

Country Status (6)

Country Link
US (1) US4759766A (ja)
EP (1) EP0176728B1 (ja)
JP (2) JPS61122859A (ja)
AT (1) ATE44871T1 (ja)
CA (1) CA1263201A (ja)
DE (1) DE3529761C2 (ja)

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JPH0757229B2 (ja) 1995-06-21
JPH06105856A (ja) 1994-04-19
DE3529761C2 (de) 1994-06-16
EP0176728A1 (de) 1986-04-09
DE3529761A1 (de) 1986-07-03
JPH0552218B2 (ja) 1993-08-04
CA1263201A (en) 1989-11-28
ATE44871T1 (de) 1989-08-15
EP0176728B1 (de) 1989-07-26
US4759766A (en) 1988-07-26

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