FR2573302A2 - Hydraulic pin cutter for surgical use - Google Patents

Hydraulic pin cutter for surgical use Download PDF

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Publication number
FR2573302A2
FR2573302A2 FR8417705A FR8417705A FR2573302A2 FR 2573302 A2 FR2573302 A2 FR 2573302A2 FR 8417705 A FR8417705 A FR 8417705A FR 8417705 A FR8417705 A FR 8417705A FR 2573302 A2 FR2573302 A2 FR 2573302A2
Authority
FR
France
Prior art keywords
pins
orifice
surgical use
cutting
pin cutter
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.)
Pending
Application number
FR8417705A
Other languages
French (fr)
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.)
JDANOFF ALEXIS
Original Assignee
JDANOFF ALEXIS
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
Priority claimed from FR7540412A external-priority patent/FR2336910A1/en
Application filed by JDANOFF ALEXIS filed Critical JDANOFF ALEXIS
Priority to FR8417705A priority Critical patent/FR2573302A2/en
Publication of FR2573302A2 publication Critical patent/FR2573302A2/en
Pending 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/8863—Apparatus for shaping or cutting osteosynthesis equipment by medical personnel

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (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

The subject of the invention relates to a first certificate of addition to the main patent, for a hydraulic pin cutter for surgical use. It consists of the addition to the part of the cylinder 2 of a complete and symmetric opening 7 with a lower face 8 which is profiled with a chamfer and an upper face 9 with grooves 10 forming a guide for bending pins. It is intended for the progressive folding, with minimal effort, without jolting, of steel plates and pins used in human and animal surgery during osteosynthesis.

Description

L'objet de l'invention concerne un premier certificat d'addition au brevet français NO 2 336 910 déposé le 31 Décembre 1975, pour coupe-broche hydraulique à usage chirurgical. The subject of the invention relates to a first certificate of addition to French patent NO 2 336 910 filed on December 31, 1975, for hydraulic spindle cutter for surgical use.

Il est destiné au pliage progressif, au moindre effort, sans secousse des broches et des plaques en acier utilisées en chirurgie humaine et animale lors d'ostéosynthèses. It is intended for progressive folding, with the slightest effort, without shaking the pins and steel plates used in human and animal surgery during osteosyntheses.

L'expérience a démontré qu'avec l'appareillage décrit sur le brevet principal, il n'était pas possible de plier ou cintrer les broches et les plaques utilisées aux mêmes fins chirurgicales. Experience has shown that with the apparatus described in the main patent, it was not possible to bend or bend the pins and plates used for the same surgical purposes.

L'objet de. l'invention supprime ces inconvénients et permet d'abord le sectionnement des broches utilisées lors d'ostéosynthèses ou encore de former par coudage ou courbure les broches et les plaques suivant les applications envisagées. The object of. the invention eliminates these drawbacks and firstly makes it possible to cut the pins used during osteosyntheses or else to form the pins and the plates by bending or bending according to the applications envisaged.

L'appareil tel que le décrit le brevet principal comporte un élément moteur le vérin 1, un élément de cisaillement 3 coulissant dans le cylindre 2 qui comporte toutes les possibilités de diamètre de broches (jusqu'à 6 mm) 4, 5, et une vis de blocage 6 pour dégager le vérin en vue de la stérilisation de l ' appa- reil.  The device as described in the main patent comprises a motor element the cylinder 1, a shearing element 3 sliding in the cylinder 2 which includes all the possibilities of diameter of pins (up to 6 mm) 4, 5, and a locking screw 6 to release the jack for sterilization of the device.

Les particularités constructives de tous les éléments demeurant inchangées à part l'orifice 7, figure 1 et 2.. The constructive particularities of all the elements remaining unchanged apart from orifice 7, FIGS. 1 and 2.

Cet orifice à ouverture totale et symétrique sur les faces opposées du cylindre 2 a une largeur permettant l'intro- duction des broches et des plaques à former. This orifice with total and symmetrical opening on the opposite faces of the cylinder 2 has a width allowing the introduction of the pins and of the plates to be formed.

Sa face inférieure 8 est profilée avec chanfrein. Its lower face 8 is profiled with a chamfer.

La partie supérieure 9 comporte des rainures 10 formant guide pour courbure de broches. The upper part 9 has grooves 10 forming a guide for bending pins.

Cet orifice de pliage 7 constitue le moyen principal de l'addition étant précisé que l'ensemble des autres éléments comporte les mêmes particularités constructives que celles décrites dans le brevet principal.  This folding orifice 7 constitutes the main means of addition, it being specified that all of the other elements have the same constructive features as those described in the main patent.

Toutefois les formes, dimensions et dispositions de cet orifice à ouverture totale sur chaque paroi de la monture cylindrique pourront varier dans la limite des équivalents, comme d ' ailleurs les matières utilisées pour la fabrication des divers éléments, sans changer pour cela, la conception générale de 1 'invention qui vient d ' être décrite.  However, the shapes, dimensions and arrangements of this fully opening orifice on each wall of the cylindrical frame may vary within the limit of equivalents, as indeed the materials used for the manufacture of the various elements, without changing the general design for this. of the invention which has just been described.

Claims (2)

REVENDICATIONS 10 Dispositif de coupe-broche hydraulique à usage chirurgical suivant la revendication 1 du brevet français NO 2336910 du 31 Décembre 1975 permettant le coudage ou formage par courbures et des plaques en acier utilisées en chirurgie lors d'ostéosynthèses, se caractérisant par un orifice (7) pratiqué à la partie supérieure de l'élément cylindrique (2) dans lequel coulisse la tige sectionneuse (3) propulsée par le vérin de commande (1), cet orifice ayant une ouverture intégrale de part et d'autre de l'élément cylindrique (2) une partie inférieure (83 avec profil chanfreiné et une partie supérieure (9) avec rainures de guidage (10).CLAIMS 10 Hydraulic spindle cutter device for surgical use according to claim 1 of French patent NO 2336910 of December 31, 1975 allowing bending or forming by bends and steel plates used in surgery during osteosynthesis, characterized by an orifice ( 7) formed at the upper part of the cylindrical element (2) in which the sectioning rod (3) slides propelled by the control cylinder (1), this orifice having an integral opening on either side of the element cylindrical (2) a lower part (83 with a chamfered profile and an upper part (9) with guide grooves (10). 20 Dispositif suivant la revendication 1 se caractérisant- par la plus grande dimension en hauteur et longueur de l'orifice (7) par rapport aux orifices (4, 5) destinés au sectionnement des broches. 20 Device according to claim 1 characterized by the largest dimension in height and length of the orifice (7) relative to the orifices (4, 5) intended for the cutting of the pins. 30 Dispositif suivant la revendication 1 se caractérisant par le fait que l'orifice (7) est situé en fin de course de la tige sectionneuse (3) qui assure à la fois le sectionnement des broches et la courbure des broches et plaques.  30 Device according to claim 1 characterized in that the orifice (7) is located at the end of travel of the cutting rod (3) which ensures both the cutting of the pins and the curvature of the pins and plates.
FR8417705A 1975-12-31 1984-11-19 Hydraulic pin cutter for surgical use Pending FR2573302A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8417705A FR2573302A2 (en) 1975-12-31 1984-11-19 Hydraulic pin cutter for surgical use

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7540412A FR2336910A1 (en) 1975-12-31 1975-12-31 Surgical pin hydraulic cutter - has single acting ram with return spring and cylindrical steel tool slidable in body
FR8417705A FR2573302A2 (en) 1975-12-31 1984-11-19 Hydraulic pin cutter for surgical use

Publications (1)

Publication Number Publication Date
FR2573302A2 true FR2573302A2 (en) 1986-05-23

Family

ID=26219228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8417705A Pending FR2573302A2 (en) 1975-12-31 1984-11-19 Hydraulic pin cutter for surgical use

Country Status (1)

Country Link
FR (1) FR2573302A2 (en)

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