ES2184239T3 - Dispositivo de distraccion para separar dos partes de un hueso. - Google Patents

Dispositivo de distraccion para separar dos partes de un hueso.

Info

Publication number
ES2184239T3
ES2184239T3 ES98907929T ES98907929T ES2184239T3 ES 2184239 T3 ES2184239 T3 ES 2184239T3 ES 98907929 T ES98907929 T ES 98907929T ES 98907929 T ES98907929 T ES 98907929T ES 2184239 T3 ES2184239 T3 ES 2184239T3
Authority
ES
Spain
Prior art keywords
bone
drive
drive shaft
grooves
parts
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 - Lifetime
Application number
ES98907929T
Other languages
English (en)
Inventor
Augustin Dr Betz
Michael Butsch
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.)
Wittenstein Motion Control GmbH
Original Assignee
Wittenstein Motion Control GmbH
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
Application filed by Wittenstein Motion Control GmbH filed Critical Wittenstein Motion Control GmbH
Application granted granted Critical
Publication of ES2184239T3 publication Critical patent/ES2184239T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7216—Intramedullary pins, nails or other devices for bone lengthening or compression
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
    • F16H2025/228—Screw mechanisms having rollers being supported by the screw shaft and engaging the nut

Abstract

LA INVENCION SE REFIERE A UN DISPOSITIVO SEPARADOR QUE SIRVE PARA RETIRAR DOS SECCIONES DE UN HUESO, EN PARTICULAR, PARA EXTENDER HUESOS O CUBRIR UN ESPACIO HUECO EN UN HUESO, COMPRENDIENDO EL DISPOSITIVO UN CLAVO INTRAMEDULAR (1), QUE PUEDE INTRODUCIRSE EN EL ESPACIO MEDULAR DE UN HUESO, Y COMPRENDE DOS PARTES (2, 3) QUE PUEDEN SEPARARSE AXIALMENTE, Y CADA UNA DE ELLAS FIJARSE A UNA DE LAS DOS SECCIONES DEL HUESO. EL DISPOSITIVO DE SEPARACION COMPRENDE ADEMAS UNA UNIDAD DE ACCIONAMIENTO (4) QUE IMPULSA UN EJE DE ACCIONAMIENTO (16), Y UN DISPOSITIVO PARA CONVERTIR EL MOVIMIENTO ROTATIVO DEL EJE DE ACCIONAMIENTO (16) EN UN MOVIMIENTO AXIAL RELATIVO DE LAS DOS PARTES (2, 3) DEL CLAVO INTRAMEDULAR (1). CON EL FIN DE AUMENTAR LA FIABILIDAD OPERATIVA Y REDUCIR EL TAMAÑO TOTAL DEL DISPOSITIVO, SIN PERDER SU ELEVADO GRADO DE EFICIENCIA, EL EJE DE ACCIONAMIENTO (16) IMPULSA UNOS RODILLOS PLANETARIOS (19) QUE SE MANTIENEN EN ORBITAS EN LAS QUE SE PONEN EN CONTACTO POR MEDIO DE RANURAS DE ACCIONAMIENTO (21), DISPUESTAS EN SU PERIFERIA EXTERIOR EN RANURAS DE ACCIONAMIENTO CORRESPONDIENTES (8) DE UN CUERPO HUECO (7) QUE RODEA LOS RODILLOS PLANETARIOS (19), ESTANDO DISEÑADAS AL MENOS LAS RANURAS DE ACCIONAMIENTO (8) DEL CUERPO HUECO (7) O DE LOS RODILLOS PLANETARIOS (19) COMO RANURAS ROSCADAS, CON EL FIN DE DESPLAZAR AXIALMENTE EL CUERPO HUECO (7) EN RELACION CON EL EJE DE ACCIONAMIENTO (16), CUANDO SE HACE GIRAR ESTE ULTIMO.
ES98907929T 1997-01-07 1998-01-07 Dispositivo de distraccion para separar dos partes de un hueso. Expired - Lifetime ES2184239T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19700225A DE19700225A1 (de) 1997-01-07 1997-01-07 Distraktionsvorrichtung zum Auseinanderbewegen zweier Teile eines Knochens

Publications (1)

Publication Number Publication Date
ES2184239T3 true ES2184239T3 (es) 2003-04-01

Family

ID=7816874

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98907929T Expired - Lifetime ES2184239T3 (es) 1997-01-07 1998-01-07 Dispositivo de distraccion para separar dos partes de un hueso.

Country Status (8)

Country Link
US (1) US6245075B1 (es)
EP (1) EP0959793B1 (es)
JP (1) JP4005643B2 (es)
AT (1) ATE229304T1 (es)
AU (1) AU6613298A (es)
DE (2) DE19700225A1 (es)
ES (1) ES2184239T3 (es)
WO (1) WO1998030163A1 (es)

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Also Published As

Publication number Publication date
EP0959793A1 (de) 1999-12-01
ATE229304T1 (de) 2002-12-15
JP2001507608A (ja) 2001-06-12
JP4005643B2 (ja) 2007-11-07
EP0959793B1 (de) 2002-12-11
DE59806622D1 (de) 2003-01-23
DE19700225A1 (de) 1998-07-09
WO1998030163A1 (de) 1998-07-16
AU6613298A (en) 1998-08-03
US6245075B1 (en) 2001-06-12

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