ITRM930513A1 - Chiodo endomidollare e osteosintesi reticolati, componibili per l'applicazione in ortopedia senza l'esposizione a raggi ionizzanti. - Google Patents

Chiodo endomidollare e osteosintesi reticolati, componibili per l'applicazione in ortopedia senza l'esposizione a raggi ionizzanti. Download PDF

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Publication number
ITRM930513A1
ITRM930513A1 IT000513A ITRM930513A ITRM930513A1 IT RM930513 A1 ITRM930513 A1 IT RM930513A1 IT 000513 A IT000513 A IT 000513A IT RM930513 A ITRM930513 A IT RM930513A IT RM930513 A1 ITRM930513 A1 IT RM930513A1
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Italy
Prior art keywords
reticulated
linked
cross
intramedullary nail
nail
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IT000513A
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English (en)
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Gideon Raphael Tock
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Gideon Raphael Tock
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Publication date
Application filed by Gideon Raphael Tock filed Critical Gideon Raphael Tock
Publication of ITRM930513A0 publication Critical patent/ITRM930513A0/it
Priority to ITRM930513A priority Critical patent/IT1261494B/it
Priority to DE69415810T priority patent/DE69415810T2/de
Priority to PCT/IT1994/000021 priority patent/WO1995003746A1/en
Priority to US08/586,839 priority patent/US5713901A/en
Priority to AU62906/94A priority patent/AU6290694A/en
Priority to CA002168228A priority patent/CA2168228A1/en
Priority to AT94910515T priority patent/ATE175336T1/de
Priority to EP94910515A priority patent/EP0710091B1/en
Priority to ES94910515T priority patent/ES2129121T3/es
Publication of ITRM930513A1 publication Critical patent/ITRM930513A1/it
Application granted granted Critical
Publication of IT1261494B publication Critical patent/IT1261494B/it

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    • 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
    • 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
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    • 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
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    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
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    • 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
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    • 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
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    • 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
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    • 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
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    • A—HUMAN NECESSITIES
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    • 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
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    • 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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • 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
    • A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
    • A61F2002/30909—Nets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
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    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
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    • 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
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    • A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
    • A61F2002/3652—Connections of necks to shafts
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    • 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
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    • 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
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    • A—HUMAN NECESSITIES
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    • 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)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Neurology (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)

Description

DESCRIZIONE
a corredo di una domanda di brevetto per invenzione industriale avente per titolo Chiodo endomidollare reticolato componibile Osteosintesi reticolata ,per l'applicazione ortopedica senza l'esposizione a raggi ionizzanti".
La presente invenzione riguarda una protesi di osteosintesi con una tecnica concepita a stabilizzare le fratture ossei grazie al corretto
bloccato. La forma cannulata del chiodo permette l'inserimento semplice e preciso.La forma a maglia del chiodo endomidollare permette il fissaggio trasversale con le viti autofilettanti senza di esporre paziente&operatori ortopedici a raggi ionizzanti che recano danno al corpo umano-.
La facilit? con cui il chiodo endomidollare viene bloccato trasversalmente riduce la durata dell' intervento con la conseguenza riduzione della perdita' ematica e basso rischio di infezione.Le parti a forma reticolata che ? destinata ad essere rimossa ? guainata con materiale plastico liscio fine del trattamento. Nella osteosintesi del collo
del femore la parte dello stelo(che viene infisso nel canale midollare della diafisi)? costruito da una rete molto resistente di titanio che permette all'osso circostante ad inglobare lo stelo ed aumentare la superficie di contatto osso-sintesi. Tutta l'introduzione dei chiodo endomidoliare
zzare l'amplificatore di brillanza .Questo significa un notevole aumento di applicabilita 1 del chiodo endomidoliare anche nelle strutture sanitarie dove non ci sono queste apparecchiature costose. Con questo nuovo chiodo endomidolare reticolato,in seguito a fratture da incidenti stradali ,il ferito potr? ottenere un bloccaggio ottimale in tutti centri ortopedici ospedalieri. I chiodi in commercio sono di diametro da 6.0mm a 18 .Omm con la lunghezza variabile da 200mm a 580min ,? un numero elevato sotto l'aspetto economico & di magazzino .Tale fatto ha indotto cne il nuovo
chiodo endomidollare reticolato si presen ta costruito da parti standardizzati in estremit?' e la parte tubolare centrale ? di. lunghezza variabile adattabile per qualsiasi esigenza protesica traumatologica :l 'ortopedico compone direttamente il pezzo della protesi che ritiene opportuno da applicare ,sia vantaggi economici con la riduzione del magazzino.In estremit?' il chiodo reticolato ha un tappo intercambiabile per poter agganciarlo alla strumentazione d 'inserimento,misurszione e controllo .Nel fig.1 viene mostrato il chiodo ondomidollare con le due estremit? AD&AP e la parte
colleaano fra di loro mediante una filettatura e/o attacco standardizzato .Le estremit?' AP&AD sono reticolati per una lunghezza costatnte che permette il passaggio sicuro della fresa trasversale attraverso la parte reticolata con un c?lcolo matematico apprrosimativo . E' sufficiente che la punta della fresa centra qualsiasi punto del reticolato a maglia per poter dopo attraversare questo foro con la vite autofilettante tras? versale che blocca il chiodo nel lume tubolare dell'osso. Nel fig.2 viene mostrato il giunto fra il chiodo centrale(C) e la parte estrema reticolata(S)mediante il giunto filettato (J).La parte del reticolato di titanio o qualsiasi altro materiale biocompatibile ? proteta con una guaina plastica(P) che evita il diretto contatto ossoreticolato fatto che facilita' di rimozione della sintesi alla fine del trattamento. Le estremit? distali della parte reticolata finiscono con un
congiunzione per lo strumentario d'inserimento svittamento e vari strumenti di centraggio fresaggio,e di misurazione. Nella fig.3 viene dimostrata l'applicazione delle viti trasversali autofilettanti(N) che attraversando la parte retieoiata(S) bloccano il chiodo endomidollare.il "bloccaggio trasversale ad entrambe le estremit?'
torsione e di mantenere la lunghezza del segmento. Nella fig.1~ si nota la composizione globale del chiodo endomidollare (AD?C?AP)che viene posizionato nel lume midollare femorale fratturato, e fissato trasversalmente con le viti autofilet? tanti(f.3N).Il fissaggio trasversale avviene senza
maniera approsimativa il chirurgo sapendo la traiettoria del chiodo endomidollare, basta che con la fresa centra qualsiasi punto del reticolato,e questo diventa il posto idoneo per l'inserimento della vite trasversale(N). La presente invenzione 6 stata dasoritta a titolo illus trativo ma non limitativo con particolare riferimento a sue forme preferite di realizzazione,ma ? da intendersi che variazioni e/o modifiche potrano essere apportate da esperti nel ramo senza per questo uscire dal relativo ambito di protezione ,come definito nelle rivendicazioni allegate.

Claims (1)

  1. RIVENDICAZIONI caratterizzata da essere reticolata di titanio e/o altri materiali. 2)Il chiodo endomidollare ? caratterizzato da essere componibile per l'applicazione ortopedica 3)Il chiodo endomidollare ? reticolato almeno in parte alle sue estremit? cosicch? permette il bloccaggio trasversale senza di esporre il paziente & operatori ai raggi ionizzanti. 4)Il chiodo endomidollare ? reticolato guainato e protetto per evitare il contatto osso?trama reticolata per facilitare la rimozione al fine trattamento 5)Nella osteosintesi femorale reticolata ,il reticolo ? libero senza la guaina protettiva cosicch? avviene il massimo contatto di osteo? inglobazione, e maggior tenuta della sintesi. 6) il chiodo endomidollare reticolato si presenta costruito da tre parti(che concettualmente possono essere costituiti anche da una sola parte del tutto reticolato e/o parzialmente reticolato). Le due parti estremi di lunghezze standard sono reticolati e cannulati,essi presentano un attacco filettato maschio/femm.o attacco meccanico di qualsiasi tipo per il collegamento al tubo centrale che ? di lunghezza variabile adattabile a qualsiasi esigenza protesica. 7)Alle estremita' distali del reticolato possonoessere presenti o non degli attacchi meccanici a tappo sia a forma maschio che a forma femmina,sia di forma filettata per il collegamento fissaggio temporaneo dello strumentario, 8)Il tappo estremo ? un giunto variabile di collegamento adattabile per lo strumentario di inserimento che estrazione gi? esistente. 9)La geometria della trama e la forma reticolata{della sintesi endomidollare e/o sintesi d'anca e/o qualsiasi altra sintesi ortopedica e neurochirurgica) pu?' assumere qualsiasi forma geometrica. Questo perche qualsiasi reticolato facilita' la penetrazione ed il fresaggio della fresa ,e l'avvitamento delle viti trasversali senza l'uso di raggi ionizzanti. 10)Il chiodo endomidollare ? caratterizzato di essere componibile,? reticolato ,? guainato/ protetto con tappo adattabile allo strumentario di diversa natura merceologica e la Osteosintesi femorale il reticoio ? libero dalia guina. tutto secondo ognuna delle rivendicazioni precedenti sia separatamente che globalmente, sostanzialmente come illustrato e descritto.
ITRM930513A 1993-07-30 1993-07-30 Chiodo endomidollare e osteosintesi reticolati, componibili per l'applicazione in ortopedia senza l'esposizione a raggi ionizzanti. IT1261494B (it)

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Application Number Priority Date Filing Date Title
ITRM930513A IT1261494B (it) 1993-07-30 1993-07-30 Chiodo endomidollare e osteosintesi reticolati, componibili per l'applicazione in ortopedia senza l'esposizione a raggi ionizzanti.
AU62906/94A AU6290694A (en) 1993-07-30 1994-03-09 Reticulated orthopaedic element to exploit the medullary canal of the long bones
PCT/IT1994/000021 WO1995003746A1 (en) 1993-07-30 1994-03-09 Reticulated orthopaedic element to exploit the medullary canal of the long bones
US08/586,839 US5713901A (en) 1993-07-30 1994-03-09 Reticulated orthopaedic element to exploit the medullary canal of the long bones
DE69415810T DE69415810T2 (de) 1993-07-30 1994-03-09 Netzförmiges, orthopädisches element welches den medullarkanal langer knochen ausfüllt
CA002168228A CA2168228A1 (en) 1993-07-30 1994-03-09 Reticulated orthopaedic element to exploit the medullary canal of the long bones
AT94910515T ATE175336T1 (de) 1993-07-30 1994-03-09 Netzförmiges, orthopädisches element welches den medullarkanal langer knochen ausfüllt
EP94910515A EP0710091B1 (en) 1993-07-30 1994-03-09 Reticulated orthopaedic element to exploit the medullary canal of the long bones
ES94910515T ES2129121T3 (es) 1993-07-30 1994-03-09 Elemento ortopedico reticular que explota el canal medular de los huesos largos.

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ITRM930513A IT1261494B (it) 1993-07-30 1993-07-30 Chiodo endomidollare e osteosintesi reticolati, componibili per l'applicazione in ortopedia senza l'esposizione a raggi ionizzanti.

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ITRM930513A1 true ITRM930513A1 (it) 1995-01-30
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ES (1) ES2129121T3 (it)
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DE69415810D1 (de) 1999-02-18
ES2129121T3 (es) 1999-06-01
CA2168228A1 (en) 1995-02-09
US5713901A (en) 1998-02-03
DE69415810T2 (de) 1999-08-12
ATE175336T1 (de) 1999-01-15
AU6290694A (en) 1995-02-28
EP0710091A1 (en) 1996-05-08
WO1995003746A1 (en) 1995-02-09
ITRM930513A0 (it) 1993-07-30
EP0710091B1 (en) 1999-01-07
IT1261494B (it) 1996-05-23

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