WO2002071961A1 - Clou verrouille par interpenetration en osteosynthese - Google Patents

Clou verrouille par interpenetration en osteosynthese Download PDF

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Publication number
WO2002071961A1
WO2002071961A1 PCT/BR2002/000042 BR0200042W WO02071961A1 WO 2002071961 A1 WO2002071961 A1 WO 2002071961A1 BR 0200042 W BR0200042 W BR 0200042W WO 02071961 A1 WO02071961 A1 WO 02071961A1
Authority
WO
WIPO (PCT)
Prior art keywords
nail
semi
nails
tube
flexible
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.)
Ceased
Application number
PCT/BR2002/000042
Other languages
English (en)
Inventor
Ilton José CARRILHO DE CASTRO
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2002071961A1 publication Critical patent/WO2002071961A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • A61B17/7266—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone with fingers moving radially outwardly
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1717—Guides or aligning means for drills, mills, pins or wires for applying intramedullary nails or pins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins

Definitions

  • the present invention is a system for fixation of linear, axis and rotational fractures on long bones, (humeral, femoral and tibial).
  • these nails are nearly the length of the fractured bone.
  • the nail is implanted through an incision in the skin, muscle, and a perforation on the bone. This procedure promotes linear stability of bending movements on the site of the fracture.
  • only the tubular nail is incapable of allowing movements on the axis, and consequently it permits movements that cause shortening of the fractured bone and also rotational movements that cause serious deformities. This can prevent or delay healing of the fracture, and the instabilities also increase the probability of post-operation infection.
  • the hole is large in diameter and weakens the segment of the nail.
  • the high cost of the apparatus is due to the special kind of surgical intruments and screws.
  • the present model obtains stability of the upper and lower extremity, with just only one surgical incision.
  • the procedure is simple, cheap, and can be used on the humeral, femoral, and tibial.
  • the system for locking by intersection is formed by two metalic nails.
  • One is tubular and on the upper extremity it has a crevasse on the lateral side.
  • the nail also has two aligned longitudinal holes; one in the upper segment and the other in the lower segment.
  • the other metalic nail is massive and semi-flexible. It is inserted by a guide and enters across the upper extremity of the bone and reaches the nail hole. When introduced inside, the tubular nail is inserted until the lower hole, where it emerges.
  • FIGURE 1 shows a frontal view of the massive nail
  • FIGURE 2 shows a frontal view of the tube
  • FIGURE 3 shows a frontal view of the guide
  • FIGURE 4 shows the nail for connection
  • FIGURE 5 shows the guide and nail attached
  • FIGURE 6 shows the intersection between the nails
  • FIGURE 1 is a view of the frontal plane showing the first component of the system which is constituted by one massive metalic nail (1), semi-flexible, with a sharp lower tip (2).
  • FIGURE 2 shows the drawing of the metalic tube (3) which represents the upper extremity (5), a short longitudinal crevasse (4) and upper (6) and lower holes (7), longitudinal alignment on the same side.
  • FIGURE 3 shows the guide that introduces the semi-flexible nail.
  • the lateral tube (10) has the diameter of the semi-flexible nail (1) and the other tube (11) has the diameter of the tubular nail (3).
  • FIGURE 4 shows the adjoining nail (12) that unites the tube to the guide (11) and tubular nail (3).
  • FIGURE 5 is a complete view of the system's components where the guide is enclosed in the crevasse, (4) the adjoining nail (12) is enclosed inside the tube guide, (11) and in the upper extremity (5) of the tubular nail (3) and the massive nail (1) is enclosed in the guide
  • FIGURE 6 shows the intersection of the nails, with the semi-flexible nail (1) represented inside the tubular nail (3) by the dotted lines and the exterior extremities of the upper (6) and lower hole (7).

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne l'association de deux clous métalliques. Il s'agit d'un dispositif permettant de réduire les fractures d'os long (humérus, fémur et tibia) en diminuant le traumatisme chirurgical et les coûts, selon une technique simple, offrant une résistance supérieure à celle que procurent les techniques existantes. On assemble les deux clous par interpénétration: un clou métallique semi-flexible massif (1) à extrémité pointue (2) et un clou tubulaire métallique (3) doté d'une crevasse (4) à l'extrémité supérieure (5), avec deux trous, l'un sur le segment supérieur (6) et l'autre sur le segment inférieur (7). Un guide (8) permet d'introduire le clou semi-flexible (1) dans le clou tubulaire (3). Ledit guide est poussé dans le trou supérieur (6) jusqu'au trou inférieur (7), par lequel il ressort pour atteindre l'extrémité (2) de l'os, ce qui empêche tout mouvement axial et de rotation sur le site de fracture.
PCT/BR2002/000042 2001-02-15 2002-02-15 Clou verrouille par interpenetration en osteosynthese Ceased WO2002071961A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR8100599U BR8100599U (pt) 2001-02-15 2001-02-15 Hastes bloqueadas por interseção para osteossìntese
BRMU8100599-7 2001-02-15

Publications (1)

Publication Number Publication Date
WO2002071961A1 true WO2002071961A1 (fr) 2002-09-19

Family

ID=4025434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2002/000042 Ceased WO2002071961A1 (fr) 2001-02-15 2002-02-15 Clou verrouille par interpenetration en osteosynthese

Country Status (2)

Country Link
BR (1) BR8100599U (fr)
WO (1) WO2002071961A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10251684B2 (en) 2011-06-23 2019-04-09 DePuy Synthes Products, Inc. Monofix nail

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998007A (en) * 1955-02-19 1961-08-29 Herzog Kurt Internal tubular splint for the fixation of bone fractures and method of applying it
FR2668920A1 (fr) * 1990-11-14 1992-05-15 Medic Instr Implant pour os fracture et gabarit de pose.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998007A (en) * 1955-02-19 1961-08-29 Herzog Kurt Internal tubular splint for the fixation of bone fractures and method of applying it
FR2668920A1 (fr) * 1990-11-14 1992-05-15 Medic Instr Implant pour os fracture et gabarit de pose.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10251684B2 (en) 2011-06-23 2019-04-09 DePuy Synthes Products, Inc. Monofix nail

Also Published As

Publication number Publication date
BR8100599U (pt) 2002-12-17

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