DE2543727A1 - Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes - Google Patents

Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes

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Publication number
DE2543727A1
DE2543727A1 DE19752543727 DE2543727A DE2543727A1 DE 2543727 A1 DE2543727 A1 DE 2543727A1 DE 19752543727 DE19752543727 DE 19752543727 DE 2543727 A DE2543727 A DE 2543727A DE 2543727 A1 DE2543727 A1 DE 2543727A1
Authority
DE
Germany
Prior art keywords
endoscopes
conductors
light conductors
robust
highly flexible
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
DE19752543727
Other languages
German (de)
Inventor
Hans-Dieter Dipl In Reidenbach
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.)
REIDENBACH HANS DIETER DIPL IN
Original Assignee
REIDENBACH HANS DIETER DIPL IN
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 REIDENBACH HANS DIETER DIPL IN filed Critical REIDENBACH HANS DIETER DIPL IN
Priority to DE19752543727 priority Critical patent/DE2543727A1/en
Publication of DE2543727A1 publication Critical patent/DE2543727A1/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G02B23/2469—Illumination using optical fibres

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Astronomy & Astrophysics (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Abstract

Light conductors composed of suitable synthetic materials are able to carry sufficient light power for use with endoscopes in such processes as photo-coagulation in human medicine whilst retaining high-flexibility and mechanical robustness to ensure no limitations in the use of the endoscope. Fibre optic light conductors, on the other hand, have high optical boss factors and quartz conductors are relatively fragile. The synthetic conductors may be used in the system described in P2517954.8 and are capable of carrying 20 watts of power from an Argon Ion laser with a 5 watt loss over 3 metres of conductor.

Description

Übertragung hoher Lichtleistungen durch den InstrumentierkanalTransmission of high light output through the instrument channel

von Endoskopen mittels hochflexibler Kunststofflichtleiter.of endoscopes using highly flexible plastic fiber optics.

Die Möglichkeit, hohe optische Strahlungsleistungsdichten mit Hilfe von Lichtleitern durch den Instrumentierkanal von Endoskopen zu übertragen5 um z.B. Photokoagulationen in Korperhbhlen durchzuführen, wird seit einiger Zeit experimentell untersucht.The possibility of using high optical radiation power densities of light guides through the instrumentation channel of endoscopes5 in order to e.g. Performing photocoagulation in body cavities has been experimental for some time examined.

Als Lichtleiter wurden bisher Glasfaserbündel und Quarzlichtleiter eingesetzt.Up to now, glass fiber bundles and quartz light guides have been used as light guides used.

Glasfaserbündel haben den Nachteil der hohen optischen Einkoppelverluste als Folge des geometrischen Packungsfaktors und der ungenügenden optischen Leistungsfestigkeit der verwendeten Kittsubstanz.Glass fiber bundles have the disadvantage of high optical coupling losses as a result of the geometric packing factor and the insufficient optical performance stability the cement substance used.

Quarzlichtleiter mit ausreichender Krümmbarkeit sind sehr empfindlich gegen Zug-, Druck-, Torsions- und Scherbeanspruchung, wie sie beim endoskopischen Einsatz in der Praxis unvermeidbar sind.Quartz light guides with sufficient bendability are very sensitive against tensile, compressive, torsional and shear stress, as in the endoscopic Use in practice are unavoidable.

Mit dem erfindungsgemäßen Verfahren können diese Nachteile vollständig vermieden werden. Das Verfahren besteht darin, daß durch Verwendung von aus geeigneten Kunststoffkomponenten aufgebauten hochflexiblen und gleichzeitig mechanisch hochrobusten Lichtleitern, die z.ß. für eine Photokoagulation erforderlichen hohen Lichtleistungen durch den Instrumentierkanal von Endoskopen übertragen werden.With the method according to the invention, these disadvantages can be completely eliminated be avoided. The method consists in that by using suitable Plastic components made up of highly flexible and at the same time mechanically highly robust Light guides that z.ß. high light powers required for photocoagulation transmitted through the instrumentation channel of endoscopes.

Kunststofflichtieiter können außerdem vorteilhaft in das in der Erfindung ~Ein flexibles Lichtleiter-Gleitschlauch-System für die Obertragung hoher optischer Leistungen durch den Instrumentierkanal von Endoskopen" (Deutsches Patentamt, Aktenzeichen P 25 17 954.8 vom 23.04.1975) beschriebene Gleitschlauch-System integriert werden.Plastic light conductors can also be used advantageously in the invention ~ A flexible fiber optic sliding tube system for the transmission of high optical Services through the instrumentation channel of endoscopes "(German Patent Office, file number P 25 17 954.8 of 04/23/1975) described sliding hose system can be integrated.

Beispiel: Mit einem Kunststofflichtleiter wurde die optische Ausgangsleistung von 20 Watt eines Argon-Ionen-Lasers durch den Instrumentierkanal von Endoskopen übertragen, wobei bei einer Lichtleiterlänge von 3 m die am Lichtleiterende noch verfügbare Leistung ca. 15 Watt betrug.Example: With a plastic fiber optic cable, the optical output power of 20 watts of an argon-ion laser through the instrument channel of endoscopes transmitted, whereby with a fiber optic length of 3 m the one at the fiber optic end is still available power was approx. 15 watts.

Dieser Kunststofflichtleiter wurde von uns erstmals in der Humanmedizin erfolgreich zur endoskopischen photokoagulativen Blutstillung und Verodung von Gefäßmißbildungen im Magen-Darm-Trakt des Menschen eingesetzt.We used this plastic light guide for the first time in human medicine successful for endoscopic photocoagulative hemostasis and erosion of vascular malformations used in the gastrointestinal tract of humans.

Claims (1)

Zusatzpatentanspruch Verfahren zur Übertragung hoher Lichtleistungen durch den Instrumentierkanal von Endoskopen, dadurch gekennzeichnet, daß ein aus Kunststoffkomponenten hergestellter dampfungsarmer und optisch leistungsfester Lichtleiter verwendet wird, der durch seine hohe Flexibilität bei gleichzeitig vorhandener großer mechanischer Robustheit die Handhabung und Kriimmbarkeit des Endoskops nicht einschränkt.Additional patent claim method for the transmission of high light outputs through the instrumentation channel of endoscopes, characterized in that one from Plastic components made of low-vapor and optically powerful light guides is used, which is due to its high flexibility and at the same time large mechanical robustness does not restrict the handling and flexibility of the endoscope.
DE19752543727 1975-10-01 1975-10-01 Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes Pending DE2543727A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752543727 DE2543727A1 (en) 1975-10-01 1975-10-01 Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752543727 DE2543727A1 (en) 1975-10-01 1975-10-01 Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes

Publications (1)

Publication Number Publication Date
DE2543727A1 true DE2543727A1 (en) 1977-04-14

Family

ID=5957911

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752543727 Pending DE2543727A1 (en) 1975-10-01 1975-10-01 Synthetic high power light conductors - are highly flexible yet robust and suitable for endoscopes

Country Status (1)

Country Link
DE (1) DE2543727A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836043A1 (en) * 1977-08-26 1979-03-01 Hughes Aircraft Co SURGICAL INSTRUMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2836043A1 (en) * 1977-08-26 1979-03-01 Hughes Aircraft Co SURGICAL INSTRUMENT

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