FR2633345A1 - Assembly pin which is self-locking by means of expansion, and adjustable pulling-together loads, for surgical or other consolidation - Google Patents

Assembly pin which is self-locking by means of expansion, and adjustable pulling-together loads, for surgical or other consolidation Download PDF

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Publication number
FR2633345A1
FR2633345A1 FR8808466A FR8808466A FR2633345A1 FR 2633345 A1 FR2633345 A1 FR 2633345A1 FR 8808466 A FR8808466 A FR 8808466A FR 8808466 A FR8808466 A FR 8808466A FR 2633345 A1 FR2633345 A1 FR 2633345A1
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FR
France
Prior art keywords
petals
screw
pulling
expansion
locking
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Withdrawn
Application number
FR8808466A
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French (fr)
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8808466A priority Critical patent/FR2633345A1/en
Publication of FR2633345A1 publication Critical patent/FR2633345A1/en
Withdrawn legal-status Critical Current

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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
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7258—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with laterally expanding parts, e.g. for gripping the bone
    • A61B17/7266—Intramedullary pins, nails or other devices 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, 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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/08—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
    • F16B13/0866—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with prongs penetrating into the wall of the hole by a retractile movement of a threaded member
    • 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
    • A61B17/7225—Intramedullary pins, nails or other devices for bone lengthening or compression for bone compression

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)

Abstract

Assembly pin which is self-locking by means of expansion and adjustable pulling-together load, amongst other things for human and animal bone surgery, and any other joint or assembly using a blind hole or a channel which is plugged at one end. One feature of this pin lies in the fact that it is used alone without anchoring components such as brads, pegs, dowels or other components passed through the bone or the object to be repaired. Figure 3 is the isometric projection with the petals 3 deployed for surgical use, the dispensing with appended components is a considerable advantage to installing and removal in terms of trauma, ease and speed. The expanding e device of the petals 3 with anchorage of the ends 7 which have been cut into a chisel or claw shape under the action of the screw 8 gives rise, as soon as they are anchored, to a pulling-together movement c which brings the fracture into compression. The curved shape of the petals 3 gives an elastic pulling-together load which can be adjusted in pressure by the screw 8 which is forced to a greater or lesser extent. The invention may be produced from stainless steel but also from any material which is compatible with the desired function.

Description

L'invention ci dessous décrite a pour objet une broche auto bloquante par dispositif expansif A rapprochement axial élastique à puissance réglable, déstiné à la chirurgie osseuse humaine ou animale, à la réparation d' oeuvres d'art et en général à toute restauration par trou borgne, le passage à travers étant proscrit. The invention described below relates to a self-locking pin by expansive device With elastic axial approximation with adjustable power, intended for human or animal bone surgery, for the repair of works of art and in general for any restoration by hole blind, passage through being prohibited.

Une particularité de cette broche réside en ce qu'elle est utilisée seule sans aucun complément tel que écrous, rondelles goupilles, clous, chevilles ou autres. Pour l'usage chirurgical notamment il n'y a pas lieu de passer de clous en travers ce qui simplifie l'intervention et diminue le traumatisme. A special feature of this pin is that it is used alone without any complement such as nuts, pin washers, nails, dowels or others. For surgical use in particular there is no need to pass nails across which simplifies the intervention and reduces trauma.

La mise en place comme 1' extraction nécessitent l'usage d'outils du commerce: clé à tube hexagonale, clé à tube carrée, extracteur taraudé en bout de dimensions convenables,ces outils étant cités ici pour information et meilleur compréhension du principe de l'invention. The implementation as 1 extraction require the use of commercial tools: hexagonal tube wrench, square tube wrench, tapped extractor at the end of suitable dimensions, these tools being cited here for information and better understanding of the principle of l 'invention.

L'invention peut être réalisée en tout matériau compatible avec l'usage prévu, entr'autre en acier inoxydable pour usage chirurgical par exemple. The invention can be made of any material compatible with the intended use, inter alia stainless steel for surgical use for example.

Dans certains cas, restaurations architecturales par exem ple,ia broche expansible objet de l'invention peut être après récupération,réutilisée autant de fois que son usure le permet. In certain cases, architectural restorations for example, the expandable pin object of the invention can be after recovery, reused as many times as its wear allows.

La planche unique 1/1 montre en figure 1 l'invention vue en coupe longitudinale avant mise en place; en figure 2 la vue en élévation mise en place dans une pièce tubulaire t quelconque, fracturée en travers selon f , obturée à une extrémité. The single plate 1/1 shows in Figure 1 the invention viewed in longitudinal section before installation; in Figure 2 the elevational view implemented in any tubular part t, fractured crosswise according to f, closed at one end.

L'invention comporte une gaine tubulaire rigide (1) de section circulaire, elliptique ou autre, faisant office de broche. La gaine (i) présente disposées face à face à distance convenable deux ou plusieurs séries de deux, trois ou plus ouvertures en sifflet (2) qui donnent passage aux pétales expansibles (3) qui forment les corolles (4) coulissantes dans la gaine (1). La corolle (4) est, dans notre exemple fixée par points de soudure (5) à un écrou (6)
Les corolles (4) poussées face à face par la vis (8) les pétales (3) sortent en biais et stencrent par les pointes (7) affûtées en burin ou en griffes, dans la surface interne des deux tronçons du tube (t).Les bords de la fracture (r) sont poussés l'un vers l'autre avec une force (c) fonction de la solidité de l'encrage par (7) en (e) et de l'effort réglable fourni par la vis (8)
La vis (8) comporte à une extrémité un carré de manoeuvre (9) puis un filetage à droite (10) suivi d'un cylindre de butée (12) et terminé par une longueur filetée à gauche (11).The invention comprises a rigid tubular sheath (1) of circular, elliptical or other cross section, serving as a pin. The sheath (i) has, arranged face to face at a suitable distance, two or more series of two, three or more whistle openings (2) which give way to the expanding petals (3) which form the corollas (4) sliding in the sheath ( 1). The corolla (4) is, in our example fixed by welding points (5) to a nut (6)
The corollas (4) pushed face to face by the screw (8) the petals (3) come out at an angle and stencher by the points (7) sharpened in chisel or claws, in the internal surface of the two sections of the tube (t) .The edges of the fracture (r) are pushed towards each other with a force (c) depending on the solidity of the inking by (7) in (e) and the adjustable force provided by the screw (8)
The screw (8) has at one end an operating square (9) then a right-hand thread (10) followed by a stop cylinder (12) and terminated by a left-hand threaded length (11).

Les écrous (6) des corolles (4) sont taraudés selon les filetages (10) et (11) de la vis (8). En tournant la vis (8) par son carré (9) dans le sens de la flèche (a) la corolle (4) immobilisée par une clé à tube tenant l'écrou (6) les deux corolles se rapprochent et font sortir les pétales (3) qui s'écartent de la gaine (1) jusque à la mise en contact des pointes (7) avec le tube (t) à rassembler. The nuts (6) of the corollas (4) are tapped according to the threads (10) and (11) of the screw (8). By turning the screw (8) by its square (9) in the direction of the arrow (a) the corolla (4) immobilized by a tube wrench holding the nut (6) the two corollas come together and bring out the petals (3) which deviate from the sheath (1) until the points (7) come into contact with the tube (t) to be assembled.

La gaine (1) peut être légèrement courbe, la vis (8) portant à ses extrémités dans les écrous (6) et à son centre sur l'épaulement (12) peut admettre une flèche fonction de son élasticité. The sheath (1) can be slightly curved, the screw (8) carrying at its ends in the nuts (6) and at its center on the shoulder (12) can admit an arrow depending on its elasticity.

La vis (8) est située londigitudinalement dans la gaine (1) par l'épaulement (12) buté entre les crevés (13)
Pour la pose, le trou ou canal à fixer est nettoyé ou foré à une dimension supérieure à celle de la gaine (1). L'ensemble tenu par une clé à tube de longueur convenable serrant l'écrou (6) coté carré (9) est poussé en place, l'opérateur après avoir mis la clé carrée sur (9) tourne celle ci en tenant la clé six pans immobile, jusqu'à ancrage des pointes (7) puis règle la pression en continuant à tourner. L'ensemble est posé.The screw (8) is located longitudinally in the sheath (1) by the shoulder (12) abutted between the punctures (13)
For installation, the hole or channel to be fixed is cleaned or drilled to a dimension greater than that of the sheath (1). The assembly held by a tube wrench of suitable length tightening the nut (6) on the square side (9) is pushed into place, the operator after having put the square key on (9) turns it by holding the key six sides stationary, until the points are anchored (7) then regulates the pressure while continuing to rotate. The whole is posed.

La dépose se fait en plaçant l'extracteur qui se visse sur la vis (10) puis la clé hexagonale sur l'écrou (6). Tourner alors 1' extracteur en vissant, les corolles coulissent vers ltextérieur, les pétales (3) et les pointes (7) rentrent dans la gaine (i) il reste à tirer sur l'extracteur et l'ensemble sort de son logement. The removal is done by placing the extractor which is screwed on the screw (10) then the hexagonal key on the nut (6). Then turn the extractor by screwing, the corollas slide inward, the petals (3) and the tips (7) enter the sheath (i) there remains to pull on the extractor and the assembly comes out of its housing.

Dans le cas de restauration d' oeuvres d'art, habiller la broche d'une feuille isolanteplastiqueipapier parafiné ou au tre, qui empèchera le pîttre, la colle de la maculer, sans empècher l'ancrage, et permettra ainsi la récupération de l'appareil en vue d'une réutilisation éventuelle.  In the case of the restoration of works of art, cover the brooch with an insulating sheet of plastic or paraffin paper or another, which will prevent the penetration, the glue from smearing it, without preventing the anchoring, and thus allow the recovery of the device for possible reuse.

Claims (3)

REVENDICBIIONS tCLAIMS t 1/ Broche d'assemblage par ancrage, caractérisée en ce qu' elle est constituée par une gaine (î) munie de deux ou plusieurs corolles expansibles {4) convergentes, coulissantes, comportant deux ou plusieurs pétales (3) terminés en griffes ou burins (7), ces corolles expansibles (4) qui en butée par leur ancrage (7) dans la paroi intérieure d'un canal (t) agissent en rapprochement puia en compression sous l'effet d'une vis (8) 1 / Anchoring assembly pin, characterized in that it is constituted by a sheath (î) provided with two or more expanding corollas (4) converging, sliding, comprising two or more petals (3) terminated in claws or chisels (7), these expandable corollas (4) which abut by their anchoring (7) in the interior wall of a channel (t) act in approximation puia in compression under the effect of a screw (8) 2/ Broche selon la revendication 1/, caractérisée en ce que dans la gaine (1) sont pratiquées des ouvertures (2) en sifflet qui:guident, vers l'extérieur, en expansion, les pétales (3) des corolles coulissantes (4). 2 / Spindle according to claim 1 /, characterized in that in the sheath (1) are made openings (2) in whistle which: guide, outward, expanding, the petals (3) of the sliding corollas (4 ). 3/ Selon la revendication 1/, broche caractérisée en ce eue la vis de réglage (8) est à filets contrariés (îî) et comporte, à une seule extrémité, une tête de manoeuvre (9) pour la mise en rotation ou l'extraction de la vis (8).  3 / According to claim 1 /, spindle characterized in that eue the adjusting screw (8) is with opposed threads (îî) and comprises, at one end, an operating head (9) for the rotation or extraction of the screw (8).
FR8808466A 1988-06-23 1988-06-23 Assembly pin which is self-locking by means of expansion, and adjustable pulling-together loads, for surgical or other consolidation Withdrawn FR2633345A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8808466A FR2633345A1 (en) 1988-06-23 1988-06-23 Assembly pin which is self-locking by means of expansion, and adjustable pulling-together loads, for surgical or other consolidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8808466A FR2633345A1 (en) 1988-06-23 1988-06-23 Assembly pin which is self-locking by means of expansion, and adjustable pulling-together loads, for surgical or other consolidation

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FR2633345A1 true FR2633345A1 (en) 1989-12-29

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437674A (en) * 1992-08-25 1995-08-01 Alexandre Worcel Osteosynthesis device
US6176860B1 (en) * 1995-07-24 2001-01-23 Hadasit Medical Research Services & Development Company, Ltd. Orthopaedic fixator
WO2001034045A1 (en) * 1999-11-11 2001-05-17 Synthes Ag Chur Radially expandable intramedullary nail
WO2006058367A1 (en) * 2004-11-30 2006-06-08 Cochlear Acoustics Ltd. Implantable fixation assembly for removably securing a medical device
CN109481082A (en) * 2018-12-19 2019-03-19 云南省阜外心血管病医院 The aorta ascendens overlay film frame discharged through apical approach
CN110905896A (en) * 2019-12-05 2020-03-24 嘉兴市奥科五金科技有限公司 Multifunctional fish eye gecko
CN117481722A (en) * 2023-12-29 2024-02-02 泓欣科创生物科技(北京)有限公司 Combined self-locking interface screw and implantation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055295A (en) * 1979-06-27 1981-03-04 Roalstad W L Intramedullary compression device
DE3413690A1 (en) * 1984-04-11 1985-10-17 Gerhard 8170 Bad Tölz Dawidowski Depression/retraction tool for a compression nail for bone fractures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2055295A (en) * 1979-06-27 1981-03-04 Roalstad W L Intramedullary compression device
DE3413690A1 (en) * 1984-04-11 1985-10-17 Gerhard 8170 Bad Tölz Dawidowski Depression/retraction tool for a compression nail for bone fractures

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5437674A (en) * 1992-08-25 1995-08-01 Alexandre Worcel Osteosynthesis device
US6176860B1 (en) * 1995-07-24 2001-01-23 Hadasit Medical Research Services & Development Company, Ltd. Orthopaedic fixator
WO2001034045A1 (en) * 1999-11-11 2001-05-17 Synthes Ag Chur Radially expandable intramedullary nail
AU774717B2 (en) * 1999-11-11 2004-07-08 Synthes Gmbh Radially expandable intramedullary nail
WO2006058367A1 (en) * 2004-11-30 2006-06-08 Cochlear Acoustics Ltd. Implantable fixation assembly for removably securing a medical device
US8235886B2 (en) 2004-11-30 2012-08-07 Advanced Bionics Ag Implantable fixation assembly for removably securing medical device
CN109481082A (en) * 2018-12-19 2019-03-19 云南省阜外心血管病医院 The aorta ascendens overlay film frame discharged through apical approach
CN109481082B (en) * 2018-12-19 2023-12-19 云南省阜外心血管病医院 Ascending aorta covered stent released by apex of heart way
CN110905896A (en) * 2019-12-05 2020-03-24 嘉兴市奥科五金科技有限公司 Multifunctional fish eye gecko
CN117481722A (en) * 2023-12-29 2024-02-02 泓欣科创生物科技(北京)有限公司 Combined self-locking interface screw and implantation method thereof

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