EP1460944A1 - Method of producing a single-eyed suture needle - Google Patents

Method of producing a single-eyed suture needle

Info

Publication number
EP1460944A1
EP1460944A1 EP03709858A EP03709858A EP1460944A1 EP 1460944 A1 EP1460944 A1 EP 1460944A1 EP 03709858 A EP03709858 A EP 03709858A EP 03709858 A EP03709858 A EP 03709858A EP 1460944 A1 EP1460944 A1 EP 1460944A1
Authority
EP
European Patent Office
Prior art keywords
diameter
needle
eye
axial hole
heat treatment
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.)
Withdrawn
Application number
EP03709858A
Other languages
German (de)
French (fr)
Inventor
Jacques Chemel
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.)
Suturex and Renodex SAS
Original Assignee
Suturex and Renodex SAS
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 Suturex and Renodex SAS filed Critical Suturex and Renodex SAS
Publication of EP1460944A1 publication Critical patent/EP1460944A1/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Withdrawn legal-status Critical Current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
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06004—Means for attaching suture to needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06166—Sutures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06004—Means for attaching suture to needle
    • A61B2017/06028—Means for attaching suture to needle by means of a cylindrical longitudinal blind bore machined at the suture-receiving end of the needle, e.g. opposite to needle tip
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/06066—Needles, e.g. needle tip configurations
    • A61B2017/061—Needles, e.g. needle tip configurations hollow or tubular

Definitions

  • the invention relates to a new and original method for manufacturing a surgical needle intended for holding, by crimping, a suture thread; said needle being of the type comprising a point, a body and an eye provided with an axial hole of diameter and depth adapted to contain the end of the suture to be crimped.
  • the invention also relates to the needle obtained by the implementation of said method
  • Known surgical suturing needles are of two types linked to their shape which is either curved or straight: - curved needles represent more than 90% of sales and are more particularly intended for internal use;
  • - straight needles are more particularly intended for external use (skin).
  • - triangular needles are used in other cases (skin, muscles).
  • the diameter of the needles generally varies from 0.24 to 1.57 mm and their length varies respectively from 8.5 to 100 mm.
  • the diameter of the axial holes generally varies, depending on the diameters of the needles, from 0.10 to 1 mm and their depth varies respectively from 0.30 to 3 mm.
  • the type of suture for example single or multi-thread.
  • the needles in question are entirely made of martensitic type steel which is subjected to a heat treatment (soaking) after drilling the eye.
  • the invention therefore aims to produce a surgical needle, with a single eye for the full range of diameters of sutures intended to equip a surgical needle of well-defined diameter, the aims of which are pursued, the means used and the results obtained are totally different from those taught in the known state of the art.
  • the method according to the invention is essentially characterized in that it consists in carrying out, on a surgical needle, entirely made of steel of the austenitic type, in the area of the eye, a local heat treatment suitable for:
  • the needle obtained by the implementation of said method is essentially characterized in that it comprises an eye provided with an axial, cylindrical hole, the diameter and the depth of which are unique for the full range of diameters of the sutures intended to equip a needle with a well-defined diameter.
  • the characteristics and advantages of the invention will appear more clearly on reading the detailed description which follows of at least one preferred embodiment of the latter given by way of nonlimiting example and represented in the appended drawing (FIG. single) which is a side view of a needle and the suture intended to be crimped there.
  • the assembly shown comprises a surgical needle (1), of diameter (D1), intended to hold, by crimping, a suture thread (2) of diameter (D3). It comprises a point (1A), a body (1B) and an eye (1C) provided with an axial hole (3), of diameter (D2) and of depth (P), adapted to contain the end (2A) suture thread (2) to be crimped.
  • the method of manufacturing the surgical needle according to the invention consists in carrying out, on said needle (1), which is entirely made of steel of the austenitic type, only in the area of the eye (1C), a heat treatment suitable for: - on the one hand, allow the mechanical drilling of the axial hole (3) whose diameter (D2), unique, is determined as a function of the diameter (D1) of the needle (1) and the diameter (D3) of the wire suture (2) of larger diameter belonging to the full range of suture threads intended to equip a needle of given diameter (D1); - on the other hand, obtaining a ductility allowing a reduction, by crushing during crimping, of the initial diameter (D2) of the axial hole (3) of depth (P), at least equal to 50%.
  • This ductility is obtained for a "Vickers" hardness of the austenitic steel between 280 and 380 Hv and more restrictively between 300 and 340 Hv.
  • Said heat treatment consists in subjecting said zone (1C) to a temperature of between 850 and 1000 ° C for a period of between 0.3 and 1 second.
  • the heat source used to carry out said heat treatment of said zone (1C) is by laser radiation (precision, instantaneousness, molecular aspect).
  • the surgical needle to be sutured obtained by the implementation of said method comprises an eye (1 C) provided with an axial hole (3) whose diameter (D2) is unique for the full range of diameters (D3) of suture (2) intended to equip a needle of given diameter (D1).
  • Said axial hole (3) also has a depth (P) unique for said range of sutures (2).
  • the diameter (D1) of the needle can vary from 0.24 to 1.57 mm.
  • the diameter (D2) of the axial hole (3) of the eye (1C) can vary from 0.12 to 1.04 mm.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (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 invention relates to a method of producing a surgical needle (1), having diameter D1, which is intended to support a suture thread (2), having diameter D3, by means of crimping. According to the invention, the method consists in performing a heat treatment on the eye area (1C) of a surgical needle (1) which is made entirely from austenitic-type steel. Said heat treatment is designed to (i) enable the mechanical drilling of the single axial hole (3) having a diameter (D2) that is determined according to the diameter (D1) of the needle (1) and the diameter (D3) of the largest-diametered suture thread (2) from the full range of suture threads that are intended to be used with a needle of a given diameter (D1); and (ii) obtain a ductility which, by means of crushing during crimping, can be used to diminish the initial diameter (D2) of the axial hole (3) by at least 50 %.

Description

PROCEDE DE FABRICATION D'UNE AIGUILLE A SUTURER A CHAS UNIQUE METHOD FOR MANUFACTURING A SINGLE NEEDLE SUTURING NEEDLE
DESCRIPTIONDESCRIPTION
L'invention concerne un procédé nouveau et original pour la fabrication d'une aiguille chirurgicale destinée au maintien, par sertissage, d'un fil de suture ; ladite aiguille étant du genre comportant une pointe, un corps et un chas pourvu d'un trou axial de diamètre et de profondeur adaptés pour contenir l'extrémité du fil de suture à sertir.The invention relates to a new and original method for manufacturing a surgical needle intended for holding, by crimping, a suture thread; said needle being of the type comprising a point, a body and an eye provided with an axial hole of diameter and depth adapted to contain the end of the suture to be crimped.
L'invention concerne également l'aiguille obtenue par la mise en œuvre dudit procédéThe invention also relates to the needle obtained by the implementation of said method
Les aiguilles chirurgicales à suturer connues sont de deux types liés à leur forme qui est soit courbe, soit droite : - les aiguilles courbes représentent plus de 90% des ventes et sont plus particulièrement destinées à un usage interne ;Known surgical suturing needles are of two types linked to their shape which is either curved or straight: - curved needles represent more than 90% of sales and are more particularly intended for internal use;
- les aiguilles droites sont plus particulièrement destinées à un usage externe (peau).- straight needles are more particularly intended for external use (skin).
Elles appartiennent également à deux familles liées à leur section qui est soit ronde, soit triangulaire :They also belong to two families linked to their section which is either round or triangular:
- les aiguilles rondes sont utilisées lorsque l'étanchéité de la suture est exigée (artères, veines) ;- round needles are used when tightness of the suture is required (arteries, veins);
- les aiguilles triangulaires (tranchantes) sont utilisées dans les autres cas (peau, muscles). Le diamètre des aiguilles varie généralement de 0,24 à 1 ,57 mm et leur longueur varie respectivement de 8,5 à 100 mm.- triangular needles (sharp) are used in other cases (skin, muscles). The diameter of the needles generally varies from 0.24 to 1.57 mm and their length varies respectively from 8.5 to 100 mm.
Le diamètre des trous axiaux varie généralement, en fonction des diamètres des aiguilles, de 0,10 à 1 mm et leur profondeur varie respectivement de 0,30 à 3 mm.The diameter of the axial holes generally varies, depending on the diameters of the needles, from 0.10 to 1 mm and their depth varies respectively from 0.30 to 3 mm.
Pour une aiguille de diamètre donné, il existe plusieurs diamètres de trous axiaux en fonction :For a needle of given diameter, there are several diameters of axial holes according to:
- du diamètre et de la nature du fil de suture ;- the diameter and the nature of the suture;
- du type de fil de suture (par exemple mono ou multifilaire).- the type of suture (for example single or multi-thread).
On effectue en moyenne une dizaine de forages différents par diamètre d'aiguille avec pour conséquences un nombre important de références et un stock conséquent. Les aiguilles en question sont entièrement réalisées en acier du type martensitique à qui l'on fait subir un traitement thermique (trempage) après forage du chas.An average of ten different holes are drilled per needle diameter, resulting in a large number of references and a large stock. The needles in question are entirely made of martensitic type steel which is subjected to a heat treatment (soaking) after drilling the eye.
Leur capacité de sertissage (fonction de la ductilité) est réduite de par la nature même de l'acier utilisé (risques de fissuration). Il n'est donc pas possible de réaliser des aiguilles à chas unique pour l'ensemble des fils de suture destinés à être sertis sur une aiguille d'un diamètre donné.Their crimping capacity (function of ductility) is reduced by the very nature of the steel used (risk of cracking). It is therefore not possible to carry out single-eyed needles for all of the sutures intended to be crimped onto a needle of a given diameter.
L'état de la technique le plus proche est essentiellement décrit dans les documents suivants : - US-5403345 qui décrit une aiguille chirurgicale, à chas unique, à fil de suture serti, qui se caractérise essentiellement dans la forme conique de son chas qui peut permettre la fixation d'une gamme de fils de suture de diamètres différents avec une déformation du diamètre de la zone à sertir d'environ 10 à 20% ; le chas est obtenu par perçage mécanique ; US-3394704 qui décrit une aiguille chirurgicale, à fil de suture collé, qui se caractérise en ce que la zone du chas subit un traitement thermique de manière à éviter qu'elle ne se fissure en cours de sertissage ; le traitement thermique est réalisé dans le but d'obtenir un meilleur maintien mécanique du fil de suture, d'éviter de le détériorer et d'autoriser de plus grandes tolérances de fabrication. L'invention vise donc à réaliser une aiguille chirurgicale, à chas unique pour la gamme complète de diamètres de fils de suture destinés à équiper une aiguille chirurgicale de diamètre bien défini, dont les buts poursuivis, les moyens mis en œuvre et les résultats obtenus sont totalement différents de ceux enseignés dans l'état de la technique connu. Le procédé selon l'invention se caractérise essentiellement en ce qu'il consiste à effectuer, sur une aiguille chirurgicale, entièrement réalisée en acier du type austénitique, dans la zone du chas, un traitement thermique local adapté pour :The closest prior art is essentially described in the following documents: - US-5403345 which describes a surgical needle, with a single eye, with crimped suture, which is essentially characterized in the conical shape of its eye which can allow the fixation of a range of sutures of different diameters with a deformation of the diameter of the area to be crimped of about 10 to 20%; the eye is obtained by mechanical drilling; US-3394704 which describes a surgical needle, with glued suture, which is characterized in that the area of the eye undergoes heat treatment so as to prevent it from cracking during crimping; the heat treatment is carried out in order to obtain better mechanical retention of the suture, to avoid damaging it and to allow greater manufacturing tolerances. The invention therefore aims to produce a surgical needle, with a single eye for the full range of diameters of sutures intended to equip a surgical needle of well-defined diameter, the aims of which are pursued, the means used and the results obtained are totally different from those taught in the known state of the art. The method according to the invention is essentially characterized in that it consists in carrying out, on a surgical needle, entirely made of steel of the austenitic type, in the area of the eye, a local heat treatment suitable for:
- d'une part, permettre le forage mécanique du trou axial, cylindrique, dont le diamètre, unique, est déterminé en fonction du diamètre de l'aiguille et du diamètre du fil de suture de plus gros diamètre appartenant à la gamme complète de fils de suture destinés à équiper une aiguille de diamètre donné : le forage mécanique n'étant pas possible dans ce type d'acier sans un traitement thermique approprié ;- on the one hand, allow the mechanical drilling of the axial, cylindrical hole, the diameter of which, unique, is determined as a function of the diameter of the needle and the diameter of the suture of larger diameter belonging to the full range of threads sutures intended to equip a needle of given diameter: mechanical drilling is not possible in this type of steel without an appropriate heat treatment;
- d'autre part, obtenir une ductilité permettant une diminution, par écrasement lors du sertissage et ce sans fissuration, du diamètre initial du trou axial, au moins égale à 50% : avec les aciers du type martensitique on ne dépasse pas les 25%.- on the other hand, obtaining a ductility allowing a reduction, by crushing during crimping and this without cracking, of the initial diameter of the axial hole, at least equal to 50%: with steels of the martensitic type it does not exceed 25% .
L'aiguille obtenue par la mise en œuvre dudit procédé se caractérise essentiellement en ce qu'elle comporte un chas pourvu d'un trou axial, cylindrique, dont le diamètre et la profondeur sont uniques pour la gamme complète de diamètres des fils de suture destinés à équiper une aiguille de diamètre bien déterminé. Les caractéristiques et les avantages de l'invention vont apparaître plus clairement à la lecture de la description détaillée qui suit d'au moins un mode de réalisation préféré de celle-ci donné à titre d'exemple non limitatif et représenté au dessin annexé (figure unique) qui est une vue de profil d'une aiguille et du fil de suture destiné à y être serti.The needle obtained by the implementation of said method is essentially characterized in that it comprises an eye provided with an axial, cylindrical hole, the diameter and the depth of which are unique for the full range of diameters of the sutures intended to equip a needle with a well-defined diameter. The characteristics and advantages of the invention will appear more clearly on reading the detailed description which follows of at least one preferred embodiment of the latter given by way of nonlimiting example and represented in the appended drawing (FIG. single) which is a side view of a needle and the suture intended to be crimped there.
L'ensemble représenté comporte une aiguille chirurgicale (1), de diamètre (D1), destinée au maintien, par sertissage, d'un fil de suture (2) de diamètre (D3). Elle comporte une pointe (1A), un corps (1B) et un chas (1C) pourvu d'un trou axial (3), de diamètre (D2) et de profondeur (P), adapté pour contenir l'extrémité (2A) du fil de suture (2) à sertir.The assembly shown comprises a surgical needle (1), of diameter (D1), intended to hold, by crimping, a suture thread (2) of diameter (D3). It comprises a point (1A), a body (1B) and an eye (1C) provided with an axial hole (3), of diameter (D2) and of depth (P), adapted to contain the end (2A) suture thread (2) to be crimped.
Le procédé de fabrication de l'aiguille chirurgicale selon l'invention consiste à effectuer, sur ladite aiguille (1), qui est entièrement réalisée en acier du type austénitique, uniquement dans la zone du chas (1C), un traitement thermique adapté pour : - d'une part, permettre le forage mécanique du trou axial (3) dont le diamètre (D2), unique, est déterminé en fonction du diamètre (D1) de l'aiguille (1) et du diamètre (D3) du fil de suture (2) de plus gros diamètre appartenant à la gamme complète des fils de suture destinés à équiper une aiguille de diamètre (D1) donné ; - d'autre part, obtenir une ductilité permettant une diminution, par écrasement lors du sertissage, du diamètre initial (D2) du trou axial (3) de profondeur (P), au moins égale à 50%.The method of manufacturing the surgical needle according to the invention consists in carrying out, on said needle (1), which is entirely made of steel of the austenitic type, only in the area of the eye (1C), a heat treatment suitable for: - on the one hand, allow the mechanical drilling of the axial hole (3) whose diameter (D2), unique, is determined as a function of the diameter (D1) of the needle (1) and the diameter (D3) of the wire suture (2) of larger diameter belonging to the full range of suture threads intended to equip a needle of given diameter (D1); - on the other hand, obtaining a ductility allowing a reduction, by crushing during crimping, of the initial diameter (D2) of the axial hole (3) of depth (P), at least equal to 50%.
Cette ductilité est obtenue pour une dureté "Vickers" de l'acier austénitique comprise entre 280 et 380 Hv et plus restrictivement entre 300 et 340 Hv. Ledit traitement thermique consiste à soumettre ladite zone (1C) à une température comprise entre 850 et 1000°C durant une période comprise entre 0,3 et 1 seconde. La source de chaleur utilisée pour réaliser ledit traitement thermique de ladite zone (1C) est à rayonnement laser (précision, instantanéité, aspect moléculaire). L'aiguille chirurgicale à suturer obtenue par la mise en œuvre dudit procédé comporte un chas (1 C) pourvu d'un trou axial (3) dont le diamètre (D2) est unique pour la gamme complète de diamètres (D3) de fils de suture (2) destinés à équiper une aiguille de diamètre (D1) donné.This ductility is obtained for a "Vickers" hardness of the austenitic steel between 280 and 380 Hv and more restrictively between 300 and 340 Hv. Said heat treatment consists in subjecting said zone (1C) to a temperature of between 850 and 1000 ° C for a period of between 0.3 and 1 second. The heat source used to carry out said heat treatment of said zone (1C) is by laser radiation (precision, instantaneousness, molecular aspect). The surgical needle to be sutured obtained by the implementation of said method comprises an eye (1 C) provided with an axial hole (3) whose diameter (D2) is unique for the full range of diameters (D3) of suture (2) intended to equip a needle of given diameter (D1).
Ledit trou axial (3) possède également une profondeur (P) unique pour ladite gamme de fils de suture (2). Le diamètre (D1) de l'aiguille peur varier de 0,24 à 1 ,57 mm. Le diamètre (D2) du trou axial (3) du chas (1C) peut varier de 0,12 à 1,04 mm. Une expérience a été réalisée avec une aiguille de diamètre extérieur de 0,56 mm et de diamètre de forage de 0,36 mm. Après un traitement thermique adapté, on a pu constater, après sertissage, une réduction de 32% du diamètre extérieur et de 69% du diamètre de forage engendrant une augmentation de l'épaisseur et de la longueur du chas (principe de la conservation de la matière).Said axial hole (3) also has a depth (P) unique for said range of sutures (2). The diameter (D1) of the needle can vary from 0.24 to 1.57 mm. The diameter (D2) of the axial hole (3) of the eye (1C) can vary from 0.12 to 1.04 mm. An experiment was carried out with a needle with an outside diameter of 0.56 mm and a drilling diameter of 0.36 mm. After a suitable heat treatment, it was observed, after crimping, a reduction of 32% in the outside diameter and 69% in the drilling diameter, resulting in an increase in the thickness and length of the eye (principle of conservation of the material).
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes, en particulier dans :Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided, in particular in:
- la nature, les types et les diamètres d'aiguilles chirurgicales et de fils de suture associés ; - les diamètres et les profondeurs des trous axiaux des chas ;- the nature, types and diameters of surgical needles and associated sutures; - the diameters and depths of the axial holes of the eyes;
- la nature et les caractéristiques de la source de chaleur destinée au traitement thermique local de l'aiguille et plus particulièrement de la zone du chas. - the nature and characteristics of the heat source intended for the local heat treatment of the needle and more particularly of the eye area.

Claims

REVENDICATIONS 1- Procédé pour la fabrication d'une aiguille chirurgicale (1), de diamètre CLAIMS 1- Process for manufacturing a surgical needle (1), of diameter
(D1), destinée au maintien, par sertissage, d'un fil de suture (2) de diamètre (D3), du genre comportant une pointe (1A), un corps (1B) et un chas (1C) pourvu d'un trou axial (3), de diamètre (D2) et de profondeur (P), adapté pour contenir l'extrémité (2A) du fil de suture (2) à sertir ; caractérisé en ce qu'il consiste à effectuer, sur une aiguille chirurgicale (1), entièrement réalisée en acier du type austénitique, dans la zone du chas (1C), un traitement thermique adapté pour :(D1), intended for holding, by crimping, a suture thread (2) of diameter (D3), of the type comprising a point (1A), a body (1B) and an eye (1C) provided with a axial hole (3), of diameter (D2) and depth (P), adapted to contain the end (2A) of the suture thread (2) to be crimped; characterized in that it consists of carrying out, on a surgical needle (1), entirely made of austenitic type steel, in the area of the eye (1C), a heat treatment adapted for:
- d'une part, permettre le forage mécanique du trou axial (3) dont le diamètre - on the one hand, allow the mechanical drilling of the axial hole (3) whose diameter
(D2), unique, est déterminé en fonction du diamètre (D1) de l'aiguille (1) et du diamètre(D2), unique, is determined according to the diameter (D1) of the needle (1) and the diameter
(D3) du fil de suture (2) de plus gros diamètre appartenant à la gamme complète des fils de suture destinés à équiper une aiguille de diamètre (D1) donné ;(D3) suture thread (2) of larger diameter belonging to the complete range of suture threads intended to equip a needle of given diameter (D1);
- d'autre part, obtenir une ductilité permettant une diminution, par écrasement lors du sertissage, du diamètre initial (D2) du trou axial (3) de profondeur (P), au moins égale à 50%.- on the other hand, obtain a ductility allowing a reduction, by crushing during crimping, of the initial diameter (D2) of the axial hole (3) of depth (P), at least equal to 50%.
2- Procédé, selon la revendication 1 , caractérisé en ce que le traitement thermique est adapté pour obtenir, dans la zone du chas (1C), une dureté "Vickers" de l'acier austénitique comprise entre 280 et 380 Hv.2- Method according to claim 1, characterized in that the heat treatment is adapted to obtain, in the area of the eye (1C), a "Vickers" hardness of the austenitic steel of between 280 and 380 Hv.
3- Procédé, selon la revendication 1 , caractérisé en ce que le traitement thermique est adapté pour obtenir, dans la zone du chas (1C), une dureté "Vickers" de l'acier austénitique comprise entre 300 et 340 Hv.3- Method according to claim 1, characterized in that the heat treatment is adapted to obtain, in the area of the eye (1C), a "Vickers" hardness of the austenitic steel of between 300 and 340 Hv.
4- Procédé, selon l'une quelconque des revendications précédentes, caractérisé en ce que le traitement thermique de la zone du chas (1C) consiste à soumettre ladite zone à une température comprise entre 800 et 1000°C durant une période comprise entre 0,3 et 1 seconde.4- Method according to any one of the preceding claims, characterized in that the heat treatment of the eye zone (1C) consists of subjecting said zone to a temperature of between 800 and 1000°C for a period of between 0, 3 and 1 second.
5- Procédé, selon la revendication 4, caractérisé en ce que la source de chaleur utilisée pour réaliser le traitement thermique de la zone du chas (1C) est à rayonnement laser.5- Method according to claim 4, characterized in that the heat source used to carry out the heat treatment of the eye area (1C) is laser radiation.
6- Aiguille chirurgicale à suturer obtenue par la mise en œuvre du procédé selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comporte un chas (1C) pourvu d'un trou axial (3) dont le diamètre (D2) est unique pour la gamme complète de diamètres (D3) des fils de suture (2) destinés à équiper une aiguille de diamètre (D1) donné. 7- Aiguille, selon la revendication 6, caractérisée en ce que le trou axial (3) possède une profondeur (P) unique pour la gamme complète de diamètres (D3) des fils de suture (2) destinés à équiper une aiguille de diamètre (D1) donné.6- Surgical needle for suturing obtained by implementing the method according to any one of the preceding claims, characterized in that it comprises an eye (1C) provided with an axial hole (3) whose diameter (D2) is unique for the complete range of diameters (D3) of suture threads (2) intended to equip a needle of given diameter (D1). 7- Needle, according to claim 6, characterized in that the axial hole (3) has a unique depth (P) for the complete range of diameters (D3) of the suture threads (2) intended to equip a needle of diameter ( D1) given.
8- Aiguille, selon les revendications 6 et 7, caractérisée en ce que le diamètre (D1) de l'aiguille varie de 0,24 à 1,57 mm.8- Needle, according to claims 6 and 7, characterized in that the diameter (D1) of the needle varies from 0.24 to 1.57 mm.
9- Aiguille, selon les revendications 6 à 8, caractérisée en ce que le diamètre (D2) du trou axial (3) du chas (1C) varie de 0,12 à 1 ,04 mm. 9- Needle, according to claims 6 to 8, characterized in that the diameter (D2) of the axial hole (3) of the eye (1C) varies from 0.12 to 1.04 mm.
EP03709858A 2002-01-07 2003-01-07 Method of producing a single-eyed suture needle Withdrawn EP1460944A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0200142 2002-01-07
FR0200142A FR2834441B1 (en) 2002-01-07 2002-01-07 PROCESS FOR THE MANUFACTURE OF A SUTURED SURGICAL NEEDLE AND SINGLE CHAS NEEDLE OBTAINED
PCT/FR2003/000023 WO2003057047A1 (en) 2002-01-07 2003-01-07 Method of producing a single-eyed suture needle

Publications (1)

Publication Number Publication Date
EP1460944A1 true EP1460944A1 (en) 2004-09-29

Family

ID=8871186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03709858A Withdrawn EP1460944A1 (en) 2002-01-07 2003-01-07 Method of producing a single-eyed suture needle

Country Status (4)

Country Link
EP (1) EP1460944A1 (en)
AU (1) AU2003214293A1 (en)
FR (1) FR2834441B1 (en)
WO (1) WO2003057047A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394704A (en) * 1965-10-20 1968-07-30 Torrington Co Surgical needle with bonded suture
US4935029A (en) * 1987-06-22 1990-06-19 Matsutani Seisakusho Co., Ltd. Surgical needle
DE3841443C1 (en) * 1988-12-09 1990-01-04 Singer Spezialnadelfabrik Gmbh, 5102 Wuerselen, De Surgical needle
JPH03244445A (en) * 1990-02-22 1991-10-31 Matsutani Seisakusho Co Ltd Medical suture needle
US5403345A (en) * 1993-10-12 1995-04-04 United States Surgical Corporation Needle suture attachment
US5707391A (en) * 1995-06-07 1998-01-13 United States Surgical Corporation Apparatus and method for attaching surgical needle suture components

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO03057047A1 *

Also Published As

Publication number Publication date
AU2003214293A1 (en) 2003-07-24
FR2834441A1 (en) 2003-07-11
WO2003057047A1 (en) 2003-07-17
FR2834441B1 (en) 2004-10-22

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