WO1999045850A1 - Procede de nettoyage et de traitement thermique d'aiguilles chirurgicales - Google Patents

Procede de nettoyage et de traitement thermique d'aiguilles chirurgicales Download PDF

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Publication number
WO1999045850A1
WO1999045850A1 PCT/EP1999/001382 EP9901382W WO9945850A1 WO 1999045850 A1 WO1999045850 A1 WO 1999045850A1 EP 9901382 W EP9901382 W EP 9901382W WO 9945850 A1 WO9945850 A1 WO 9945850A1
Authority
WO
WIPO (PCT)
Prior art keywords
basin
surgical needles
frame
heat treatment
cleaning
Prior art date
Application number
PCT/EP1999/001382
Other languages
English (en)
Inventor
Stephan Gelahr
Wilfried Steiner
Original Assignee
Ethicon Gmbh & Co. Kg
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 Ethicon Gmbh & Co. Kg filed Critical Ethicon Gmbh & Co. Kg
Priority to EP99910323A priority Critical patent/EP1071373A1/fr
Publication of WO1999045850A1 publication Critical patent/WO1999045850A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/26—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for needles; for teeth for card-clothing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/70—Cleaning devices specially adapted for surgical instruments
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • 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

Definitions

  • the invention relates to a process for the cleaning and heat treatment of surgical needles .
  • the object of the invention is to improve the previously mentioned process for the cleaning and heat treatment of surgical needles in such a way that the surgical needles to be treated are not damaged during the heat treatment by the basin in which they are placed.
  • the surgical needles to be treated are placed in a basin with an upright edge.
  • the edge is covered on its inside at least in its lower region by a frame inserted into the basin.
  • the surgical needles are then cleaned in the basin, with the frame inserted, by means of a washing or cleaning liquid.
  • the frame is removed from the basin. This results in the needles lying at an adequate distance from the edge of the basin during the heat treatment. This distance is at least as great as the thickness of the frame.
  • the frame is preferably dimensioned in such a way that the gap between the edge of the basin and the frame is relatively narrow when the frame is inserted into the basin, with the result that, when the surgical needles are poured into the basin, the needles cannot directly enter the gap and then rest against the edge of the basin in an undesirable manner.
  • the surgical needles are dried in the basin in a separate step prior to the heat treatment, preferably prior to the removal of the frame from the basin. This results in the frame also preventing a contact between the needles and the edge of the basin during the step for drying of the surgical needles .
  • a basin is preferably used which is fitted with run-off openings for the washing or cleaning liquid.
  • Such a basin can be made from a sheet with an upwardly bent edge, at least one of the border regions between adjacent edge parts not being closed.
  • Such a basin with a rectangular bottom surface can easily be produced by bending four edge parts upwards and also has the advantage that it does not buckle during the heat treatment.
  • Figure 1 a plan view of a basin in which the surgical needles to be treated are placed, a frame being inserted into the basin,
  • Figure 2 a longitudinal section through the basin with inserted frame along the line A-A in Figure 1 and
  • Figure 3 a side view of the basin with inserted frame.
  • a basin 1 is represented in which the surgical needles to be treated are placed when carrying out the process according to the invention.
  • the basin 1 has a bottom 2 and an upright edge which consists of four edge parts 4, 5, 6 and 7 which form the side walls of the basin 1.
  • the basin 1 is made in one piece from a heat-resistant metal sheet, the edge parts 4, 5, 6 and 7 being bent upwards at the periphery of the bottom 2.
  • the border regions 8 between any two neighbouring edge parts 4 , 5 , 6 or 7 are not closed. This results in the basin 1 not warping, or warping only slightly, at high temperature.
  • the washing or cleaning liquid used for cleaning the surgical needles placed in the basin 1 can run off from the basin 1 via the border regions 8.
  • a frame 10 is inserted into the basin 1 from above.
  • the frame is rectangular and made from a plastic material which is resistant to the washing or cleaning liquid used for cleaning.
  • the frame is dimensioned in such a way that its upper region 11 protrudes above the edge parts 4, 5, 6 and 7, see Figure 2 and Figure 3. This makes it possible to remove the frame 10 without problems from the basin 1.
  • the gap 12 between the insides of the edge parts 4, 5, 6 and 7 and the outside of the frame 10 is relatively narrow in the embodiment, see Figure 1 and Figure 2 .
  • the gap 12 is large enough to guarantee an easy insertion of the - 5 -
  • the needles are first shaped so that they each receive a needle tip and an end-side lying opposite the needle tip. A hole, in which the front end of a surgical thread is later secured, is drilled into the end- side of a given needle.
  • a plurality of surgical needles prepared in this way are then placed in a basin 1 fitted with a frame 10.
  • the frame 10 prevents the needles from touching the edge parts 4, 5, 6 and 7 of the basin 1.
  • the basin 1, with the frame 10 and the surgical needles located in the basin 1, is then immersed in a bath which contains a washing or cleaning liquid. It is possible to move the basin 1 in the bath, as the washing or cleaning liquid can flow into the basin 1 or leave the basin 1 via the border regions 8 between the edge parts 4, 5, 6 or 7. Alternatively, washing or cleaning liquid can be poured into the basin 1 from above, in which case used liquid flows away via the open border regions 8.
  • a washing or cleaning liquid can be poured into the basin 1 from above, in which case used liquid flows away via the open border regions 8.
  • the basin 1 with the surgical needles located in it can be moved or shaken in order to support the process; the frame 10 reliably prevents the needles from touching the edge parts 4, 5, 6 and 7 of the basin 1.
  • the surgical needles are dried in the basin 1.
  • the frame 10 remains in the basin 1, with the result that the needles cannot come into contact with the edge parts 4, 5, 6 and 7 even if they are shifted in the basin 1 during drying .
  • the frame 10 is pulled up out of the basin 1.
  • the basin 1 should no longer be exposed to strong vibrations thereafter, so that the needles 1 do not move to the edge parts 4, 5, 6 and 7.
  • the heat treatment of the surgical needles is then carried out in an oven, at ca . 1000°C in the embodiment, in order to achieve a hardening of the surgical needles.
  • the needles are located in the basin 1 which is made from heat- resistant material.
  • the surgical needles can be removed from the basin 1.
  • Other processes e.g. for the treatment of the needle surfaces or for the securing of surgical threads, can be added.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Molecular Biology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Dans un procédé de nettoyage et de traitement thermique d'aiguilles chirurgicales, les aiguilles chirurgicales à traiter sont placées dans une bassine (1) possédant un bord vertical (5, 7) et recouverte de l'intérieur et au moins dans sa partie inférieure par un cadre (10) inséré dans la bassine (1). Une fois le cadre (10) inséré, on traite les aiguilles chirurgicales dans la bassine (1) au moyen d'un liquide de lavage ou de nettoyage. Avant de soumettre les aiguilles chirurgicales se trouvant dans la bassine (1) à un traitement thermique, on retire le cadre (10) de la bassine (1).
PCT/EP1999/001382 1998-03-10 1999-03-05 Procede de nettoyage et de traitement thermique d'aiguilles chirurgicales WO1999045850A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99910323A EP1071373A1 (fr) 1998-03-10 1999-03-05 Procede de nettoyage et de traitement thermique d'aiguilles chirurgicales

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811203.3 1998-03-10
DE19811203A DE19811203C1 (de) 1998-03-10 1998-03-10 Verfahren zum Säubern und Wärmebehandeln chirurgischer Nadeln

Publications (1)

Publication Number Publication Date
WO1999045850A1 true WO1999045850A1 (fr) 1999-09-16

Family

ID=7860966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001382 WO1999045850A1 (fr) 1998-03-10 1999-03-05 Procede de nettoyage et de traitement thermique d'aiguilles chirurgicales

Country Status (3)

Country Link
EP (1) EP1071373A1 (fr)
DE (1) DE19811203C1 (fr)
WO (1) WO1999045850A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494648A2 (fr) * 1991-01-07 1992-07-15 United States Surgical Corporation Aiguille chirurgicale siliconisée
US5533982A (en) * 1993-10-05 1996-07-09 United States Surgical Corporation Heat treated stainless steel needles
EP0798397A2 (fr) * 1996-03-27 1997-10-01 Ethicon, Inc. Procédé pour nettoyer des aiguilles chirurgicales
US5701656A (en) * 1993-11-01 1997-12-30 Ethicon, Inc. Process for manufacturing taper point surgical needles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534897A (en) * 1968-01-17 1970-10-20 Gulf & Western Ind Prod Co Electronic control circuit for automatically fed machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0494648A2 (fr) * 1991-01-07 1992-07-15 United States Surgical Corporation Aiguille chirurgicale siliconisée
US5533982A (en) * 1993-10-05 1996-07-09 United States Surgical Corporation Heat treated stainless steel needles
US5701656A (en) * 1993-11-01 1997-12-30 Ethicon, Inc. Process for manufacturing taper point surgical needles
EP0798397A2 (fr) * 1996-03-27 1997-10-01 Ethicon, Inc. Procédé pour nettoyer des aiguilles chirurgicales

Also Published As

Publication number Publication date
EP1071373A1 (fr) 2001-01-31
DE19811203C1 (de) 1999-10-07

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