FR2831421A1 - Medullar nail for infant limb has telescopic sections which lock in place and can be adjusted for length as child grows - Google Patents

Medullar nail for infant limb has telescopic sections which lock in place and can be adjusted for length as child grows Download PDF

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Publication number
FR2831421A1
FR2831421A1 FR0113846A FR0113846A FR2831421A1 FR 2831421 A1 FR2831421 A1 FR 2831421A1 FR 0113846 A FR0113846 A FR 0113846A FR 0113846 A FR0113846 A FR 0113846A FR 2831421 A1 FR2831421 A1 FR 2831421A1
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France
Prior art keywords
place
lock
adjusted
length
telescopic sections
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Granted
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FR0113846A
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French (fr)
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FR2831421B3 (en
Inventor
Jean Pierre Huitema
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Individual
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Individual
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Priority to FR0113846A priority Critical patent/FR2831421B3/en
Publication of FR2831421A1 publication Critical patent/FR2831421A1/en
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Publication of FR2831421B3 publication Critical patent/FR2831421B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical 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
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72Intramedullary pins, nails or other devices
    • A61B17/7216Intramedullary pins, nails or other devices for bone lengthening or compression

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  • 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)
  • Prostheses (AREA)

Abstract

The Medullar nail for an infant limb has two sections (1,2) which slide together and have a locking screw (3). The ends of the installed nail have end plates (3,4) with impact recesses (6). The locking screw can have a plate (8) with the threaded shank fitting into a threaded bore (7) at the end of the implant.

Description

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La présente, invention est utilisée exceptionnellement comme moyen d'ostéosynthèse chez l'enfant. Les indications sont réservées aux patients porteurs d'une pathologie osseuse, le plus souvent constitutionnelle, entraînant des déformations et une fragilisation pour lesquelles il est souhaitable de mettre en place, de façon permanente un tuteur métallique palliant aux défauts mécaniques du squelette. The present invention is used exceptionally as a means of osteosynthesis in children. The indications are reserved for patients with a bone pathology, most often constitutional, resulting in deformations and embrittlement for which it is desirable to permanently install a metal support compensating for the mechanical defects of the skeleton.

La présente invention peut également être utilisée pour le traitement des pseudarthroses congénitales du tibia, dans l'ostéopétrose, pour les atteintes de la dysplasie fibreuse et également chez certains patients atteints de troubles moteurs sévères, de raideurs articulaires, victimes parfois de fractures à répétition avec des déformations squelettiques. The present invention can also be used for the treatment of congenital non-union of the tibia, in osteopetrosis, for attacks of fibrous dysplasia and also in certain patients suffering from severe motor disorders, joint stiffness, victims sometimes of repeated fractures with skeletal deformities.

On connaît l'installation de broches classiques introduites dans le canal médullaire de tous les os longs, avec l'inconvénient d'avoir une broche fixe ne tenant pas compte de la croissance de l'enfant. We know the installation of conventional pins introduced into the spinal canal of all long bones, with the disadvantage of having a fixed pin that does not take into account the growth of the child.

Le système d'enclouage centro médullaire télescopique, objet de l'invention, permet, après avoir procédé à un certain nombre d'ostéotomies, de traverser et de composer une brochette osseuse avec la partie femelle impactée d'un côté venant rejoindre de l'autre côté la partie mâle. Visiblement l'os est redressé, il se solidifiera avec le temps et l'implant étant télescopique, il grandira avec la croissance de l'enfant. The telescopic centro-medullary nailing system, object of the invention, allows, after having carried out a certain number of osteotomies, to cross and compose a bone skewer with the female part impacted on one side coming to join the on the other side the male part. Obviously the bone is straightened, it will solidify over time and the implant being telescopic, it will grow with the growth of the child.

L'invention est décrite ci-après selon un mode de réalisation particulier non limitatif en regard des dessins annexés sur lesquels : - La figure 1 représente une vue en coupe du matériel installé dans un os long signalé en pointillés. The invention is described below according to a particular non-limiting embodiment with regard to the accompanying drawings in which: - Figure 1 shows a sectional view of the equipment installed in a long bone indicated by dotted lines.

- La figure 2 représente le boulon de verrouillage de la partie femelle. - Figure 2 shows the locking bolt of the female part.

- La figure 3 représente l'une et l'autre extrémités du matériel avec son logement central.  - Figure 3 shows both ends of the equipment with its central housing.

Selon un mode de réalisation particulier de l'invention, les deux pièces principales (1,2) coulissent l'une dans l'autre. Il sera nécessaire, afin de s'adapter à la morphologie de chaque patient, de faire différents diamètres et différentes longueurs. According to a particular embodiment of the invention, the two main parts (1,2) slide one inside the other. In order to adapt to the morphology of each patient, it will be necessary to make different diameters and different lengths.

L'implant télescopique sera préférentiellement composé de trois pièces : deux pièces coulissant l'une dans l'autre (1,2) et un boulon de verrouillage. The telescopic implant will preferably be composed of three parts: two parts sliding one inside the other (1,2) and a locking bolt.

<Desc/Clms Page number 2> <Desc / Clms Page number 2>

Selon un mode de réalisation particulier de l'invention, la partie mâle (2) possède à son extrémité une plaquette rectangulaire (4) soudée à celle-ci, servant d'appui sur l'extrémité osseuse (5) en pointillé (fig. 1). Cette partie mâle est impactée avec un instrument à choc se mettant dans le logement usiné au centre de la plaquette (6). According to a particular embodiment of the invention, the male part (2) has at its end a rectangular plate (4) welded to the latter, serving as support on the bone end (5) in dotted lines (fig. 1). This male part is impacted with an impact instrument placed in the machined housing in the center of the plate (6).

Selon un mode de réalisation particulier de l'invention, la partie femelle (1) possède à son extrémité une partie taraudée intérieure (7) dans laquelle s'installe un boulon métallique fileté (3), possédant sur un côté un méplat (8) représenté de profil (fig. 2) et possédant également un logement central d'impaction (6). Lorsque la partie femelle est installée dans l'os, le boulon (fig. 2) est mis en place et, afin de le rendre prisonnier, il suffit d'écraser légèrement le tube à l'endroit du méplat. According to a particular embodiment of the invention, the female part (1) has at its end an internal threaded part (7) in which a threaded metal bolt (3) is installed, having on one side a flat (8) shown in profile (fig. 2) and also having a central impaction housing (6). When the female part is installed in the bone, the bolt (fig. 2) is put in place and, in order to make it captive, it is enough to slightly crush the tube at the place of the flat.

On constate qu'après l'installation du matériel, l'os est parfaitement redressé et offre au patient l'asurance de conserver un os droit pendant toute sa croissance puisque celui-ci est télescopique.It is noted that after the installation of the material, the bone is perfectly straightened and offers the patient the assurance of keeping a straight bone throughout its growth since it is telescopic.

Claims (3)

REVENDICATIONS 1) Dispositif d'enclouage centro médullaire d'un système télescopique concernant le redressement de tous les os longs déformés chez l'enfant, caractérisé en ce qu'il comprend trois pièces (1,2, 3) assemblées par un effet coulissant (1,2) et un boulon de verrouillage (3). CLAIMS 1) Device for centro-medullary nailing of a telescopic system relating to the straightening of all long bones deformed in children, characterized in that it comprises three parts (1,2, 3) assembled by a sliding effect ( 1,2) and a locking bolt (3). 2) Dispositif d'enclouage centro médullaire selon la revendication. 1 caractérisé en'ce que les extrémités de l'implant installé (fig. 1) possèdent et se terminent par une plaquette (3,4) possédant au centre un logement d'impaction (6). 2) Central medullary nailing device according to claim. 1 characterized in that the ends of the installed implant (fig. 1) have and end with a plate (3,4) having in the center an impaction housing (6). 3) Dispositif d'enclouage centro médullaire selon l'une quelconque des revendications précédentes, caractérisé en ce que le boulon de verrouillage (3) possède un méplat (8) sur la partie filetée venant se visser dans la partie taraudée (7) à l'extrémité de l'implant femelle.3) centro-medullary nailing device according to any one of the preceding claims, characterized in that the locking bolt (3) has a flat (8) on the threaded part which is screwed into the tapped part (7) to the end of the female implant.
FR0113846A 2001-10-26 2001-10-26 DEVICE FOR CENTRAL MEDULAR TELESCOPING IN CHILDREN Expired - Fee Related FR2831421B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0113846A FR2831421B3 (en) 2001-10-26 2001-10-26 DEVICE FOR CENTRAL MEDULAR TELESCOPING IN CHILDREN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0113846A FR2831421B3 (en) 2001-10-26 2001-10-26 DEVICE FOR CENTRAL MEDULAR TELESCOPING IN CHILDREN

Publications (2)

Publication Number Publication Date
FR2831421A1 true FR2831421A1 (en) 2003-05-02
FR2831421B3 FR2831421B3 (en) 2004-01-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR0113846A Expired - Fee Related FR2831421B3 (en) 2001-10-26 2001-10-26 DEVICE FOR CENTRAL MEDULAR TELESCOPING IN CHILDREN

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FR (1) FR2831421B3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016175729A1 (en) 2015-04-29 2016-11-03 Tst Rakor Ve Tibbi̇ Aletler Sanayi̇ Ve Ti̇caret Ltd. Şti̇. Telescopic nail
CN113974809A (en) * 2021-12-15 2022-01-28 河北医科大学第三医院 Tibia intramedullary nail

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016175729A1 (en) 2015-04-29 2016-11-03 Tst Rakor Ve Tibbi̇ Aletler Sanayi̇ Ve Ti̇caret Ltd. Şti̇. Telescopic nail
US10433886B2 (en) 2015-04-29 2019-10-08 Tst Rakor Ve Tibbi Aletler Sanayi Ve Ticaret Limit Telescopic nail
CN113974809A (en) * 2021-12-15 2022-01-28 河北医科大学第三医院 Tibia intramedullary nail
CN113974809B (en) * 2021-12-15 2023-07-18 河北医科大学第三医院 Tibia intramedullary nail

Also Published As

Publication number Publication date
FR2831421B3 (en) 2004-01-16

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Effective date: 20070629