AT200718B - Instrument to be inserted into body cavities, in particular indwelling catheter and method for its manufacture - Google Patents

Instrument to be inserted into body cavities, in particular indwelling catheter and method for its manufacture

Info

Publication number
AT200718B
AT200718B AT200718DA AT200718B AT 200718 B AT200718 B AT 200718B AT 200718D A AT200718D A AT 200718DA AT 200718 B AT200718 B AT 200718B
Authority
AT
Austria
Prior art keywords
instrument
manufacture
body cavities
heating
indwelling catheter
Prior art date
Application number
Other languages
German (de)
Inventor
Willy Ruesch
Original Assignee
Willy Ruesch
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 Willy Ruesch filed Critical Willy Ruesch
Application granted granted Critical
Publication of AT200718B publication Critical patent/AT200718B/en

Links

Landscapes

  • Media Introduction/Drainage Providing Device (AREA)
  • Materials For Medical Uses (AREA)

Description

  

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  In Körperhöhlungen einzuführendes Instrument, insbesondere Verweil- katheter und Verfahren zu seiner Herstellung 
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 gestimmt werden. 



   Gegenüber der Herstellung der Katheter aus mineralisierte Gummi ist also keine Vulkanisation erforderlich, ferner keine Blasform und kein innerer und   äusserer Überdruck ;   den bekannten Kunststoffkathetern ist der Katheter nach der Erfindung qualitativ und in bezug auf mechanische und chemische Beanspruchung weit überlegen. 



   Die zur Härtung der Katheter dienende Vorrichtung besteht aus bekannten Teilen, vorzugsweise einer Schneckenpresse   mitHebelapparat zur Bildung desKatheterkopfes,   einem Dorn zur Bildung der Spitze und einem kegelförmigen Teil zur Bildung des Trichters sowie aus einem Behälter, welcher eine drucklose Erhitzung bis auf 2500 gestattet. 



   Die Herstellung der Augen und   Löcher   erfolgt durch Stanzen oder Durchschlagen und Einschleifen in gleicher Art wie bei den bereits bekannten Kathetern. 



   Die Erfindung kann bei allen bekannten Formen von Kathetern, Bougies und ähnlichen Instrumenten mit gleichem Vorteil angewendet werden. 



   PATENTANSPRÜCHE : 
1. In Körperhöhlungen einzuführendes Instrument, insbesondere Verweilkatheter. dadurch gekennzeichnet, dass es aus Silicon-Kautschuk besteht. 
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  Instrument to be introduced into body cavities, in particular indwelling catheter and method for its manufacture
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   Compared to the manufacture of catheters from mineralized rubber, no vulcanization is necessary, furthermore no blow mold and no internal and external overpressure; The catheter according to the invention is far superior to the known plastic catheters in terms of quality and mechanical and chemical stress.



   The device used to harden the catheter consists of known parts, preferably a screw press with a lever mechanism to form the catheter head, a mandrel to form the tip and a conical part to form the funnel, as well as a container which allows pressureless heating up to 2500.



   The eyes and holes are produced by punching or punching and grinding in the same way as with the already known catheters.



   The invention can be used with equal advantage in all known forms of catheters, bougies and similar instruments.



   PATENT CLAIMS:
1. An instrument to be inserted into body cavities, especially an indwelling catheter. characterized in that it consists of silicone rubber.
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Claims (1)

t Verfahrenliche Länge abgeschnittenen Katheterrohres unter Erwärmung, dadurch gekennzeichnet, dass die Erhitzung in zwei Stufen erfolgt, derart, dass das knetbare Material zunächst nur so weit gehärtet wird, dass es sich nicht mehr deformiert, aber noch ausreichend biegsam ist, um in die gewünschte Form gebracht zu werden und dass anschliessend daran das geformte Erzeugnis mit etwas höherer Temperatur ausgehärtet wird.' 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Erhitzung je nach der Wandstärke bzw. dem Rohrdurchmesser während einer Anlaufzeit von etwa fünf Stunden innerhalb der Temperaturen zwischen 180-2Q0 und während einer Aushärtungszeit bei etwa gleicher oder je nach Härte auch geringerer oder grösserer Zeitdauer bei Temperaturen von etwa 200 - 2500 erfolgt. Process length of cut catheter tube under heating, characterized in that the heating takes place in two stages, such that the kneadable material is initially only hardened to the extent that it is no longer deformed, but is still sufficiently flexible to be given the desired shape to be brought and that then the shaped product is cured at a slightly higher temperature. ' 3. The method according to claim 2, characterized in that the heating depending on the wall thickness or the pipe diameter during a start-up time of about five hours within temperatures between 180-2Q0 and during a curing time at about the same or depending on the hardness also smaller or larger Duration takes place at temperatures of about 200-2500.
AT200718D 1956-03-12 1957-03-04 Instrument to be inserted into body cavities, in particular indwelling catheter and method for its manufacture AT200718B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200718T 1956-03-12

Publications (1)

Publication Number Publication Date
AT200718B true AT200718B (en) 1958-11-25

Family

ID=29556426

Family Applications (1)

Application Number Title Priority Date Filing Date
AT200718D AT200718B (en) 1956-03-12 1957-03-04 Instrument to be inserted into body cavities, in particular indwelling catheter and method for its manufacture

Country Status (1)

Country Link
AT (1) AT200718B (en)

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