DE2062178A1 - Process for the production of endoscope optics suitable for hot steam sterilization - Google Patents
Process for the production of endoscope optics suitable for hot steam sterilizationInfo
- Publication number
- DE2062178A1 DE2062178A1 DE19702062178 DE2062178A DE2062178A1 DE 2062178 A1 DE2062178 A1 DE 2062178A1 DE 19702062178 DE19702062178 DE 19702062178 DE 2062178 A DE2062178 A DE 2062178A DE 2062178 A1 DE2062178 A1 DE 2062178A1
- Authority
- DE
- Germany
- Prior art keywords
- endoscope optics
- system pipe
- noble gas
- filled
- inert gas
- 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
Links
Classifications
-
- 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
-
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
-
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
-
- 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
- A61B1/12—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 with cooling or rinsing arrangements
- A61B1/121—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 with cooling or rinsing arrangements provided with means for cleaning post-use
-
- 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
- A61B1/00163—Optical arrangements
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Endoscopes (AREA)
Description
DR. HUGO WILCKEN · DIPL.-ING. THOMAS WILCKEN ""· 6 · 12 .1970DR. HUGO WILCKEN DIPL.-ING. THOMAS WILCKEN "" · 6 · December 1970
Anmelder:Applicant:
Richard Wolf GmbH, 7134 Khittlingen, Pforzheimer Str. ZZ Richard Wolf GmbH, 7134 Khittlingen, Pforzheimer Str. ZZ
Verfahren zur Herstellung einer für die Heißdampfsterilisation geeigneten EndoskopoptikProcess for the production of endoscope optics suitable for hot steam sterilization
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer für die Heißdampfsterilisation geeigneten Endoskopoptik, bestehend aus optischen, mit Abstand angeordneten Linsen, einem Okular und einem Objektiv vor einem eingelöteten oder eingekitteten Fenster in einem optischen Systemrohr und auf eine Endoskopoptik, die insbesondere nach diesem Verfahren hergestellt ist.The invention relates to a method for producing endoscope optics suitable for hot steam sterilization, Consists of optical, spaced-apart lenses, an eyepiece and an objective in front of a soldered or cemented one Window in an optical system tube and on an endoscope optics, which are manufactured in particular according to this method is.
Zum Keimfreimachen werden in Kliniken oder Praxisräumen ärztliche Instrumente heute fast allgemein im trockenen Heißdampf bei Temperaturen von etwa 135° sterilisiert. Diese Sterilisierart kann auch für EndoskopSchäfte und endoskopische Instrumente angewendet werden, führt jedoch bei Endoskopoptiken der erwähnten Art zu Schwierigkeiten an Abdichtungsstellen bzw.» Lötstellen, so daß man für das Sterilisieren dieser Endoskopoptiken auf das übliche Abkochen oder Keimfreimachen mittels Alkohol od. dgl. zurückgreifen mußte»In order to clear germs in clinics or practice rooms, medical instruments are now almost generally used in dry superheated steam sterilized at temperatures of about 135 °. This type of sterilization can also be used for endoscope shafts and endoscopic instruments are used, but with endoscope optics of the type mentioned leads to difficulties at sealing points or » Soldering points, so that you can sterilize these endoscope optics had to fall back on the usual boiling or germ-freeing with alcohol or the like »
— 2 —
209827/0282 - 2 -
209827/0282
* Ufa.* (0451) 7 58 88, Privat. Dr. H- V.'Wcilrt, C U rilfc\ £ϊ>**"Α5#Λ> Th. Wllcken, Lübeck (0451) 2 51 5? Bank, Commenbank A. G., FiI. lOb.dc, Kto.-Nr. 39 0187 Pojtjcheck: Hamburg 1381 19* Ufa. * (0451) 7 58 88, private. Dr. H- V. 'Weilrt, CU rilfc \ £ ϊ> ** "Α5 # Λ> Th. Wllcken, Lübeck (0451) 2 51 5? Bank, Commenbank AG, FiI. LOb.dc, Account No. 39 0187 Pojtjcheck: Hamburg 1381 19
Um nun generell die Heißdampfsterilisation auch für Endoskopoptiken, also in Kliniken usw. eine einzige Sterilisierart durchführen zu können, ist schon vorgeschlagen worden (OS 15 16 431), das Systemrohr zu evakuieren und sodann luftdicht zu verschließen, so daß damit keinerlei Feuchtigkeitsreste im Systemrohr vorhanden sind, die nach der Sterilisation als Kondensate auf den Linsen niederschlagen und diese trübe werden lassen.In order to now generally also use superheated steam sterilization for endoscope optics, that is, to be able to carry out a single type of sterilization in clinics etc. has already been proposed (OS 15 16 431), to evacuate the system pipe and then to seal it airtight so that there is no residual moisture in the system pipe which precipitate as condensates on the lenses after sterilization and make them cloudy.
Es hat sich jedoch herausgestellt, daß durch dieses Evakuieren des Systemrohrs sich insbesondere die Lötstellen oder Kittstellen des Ausblickfensters vor dem Objektiv durch die sich bei der Heißdampfsterilisation ergebende hohe Druckdifferenz zwischen Außendruck und dem Innern des Systemrohres lösen oder porös werden, womit die gewollte Wirkung verlorengeht.It has been found, however, that this evacuation of the system pipe in particular causes the soldering points or cemented points to be removed of the viewing window in front of the lens due to the high pressure difference between External pressure and the inside of the system pipe loosen or become porous, with which the intended effect is lost.
Die Aufgabe der Erfindung besteht daher darin, die Heißdampf-Sterilisation ohne Zerstörung oder Beschädigung von Lötstellen oder Kittstellen, insbesondere am Ausblickfenster anwenden zu können.The object of the invention is therefore the hot steam sterilization without destroying or damaging soldered joints or cemented joints, especially on the viewing window can.
'Dies wird nach der Erfindung dadurch erreicht, daß bei dem eingangs erwähnten Verfahren das Systemrohr zunächst in bekannter'This is achieved according to the invention in that at the beginning mentioned method the system pipe first in known
jWeise evakuiert wird und daß sodann eine Füllung mit Edelgas oderjWise evacuated and that then a filling with noble gas or
!inertem Gas und darauf ein luftdichtes Verschließen erfolgt. Damit ist eine Endoskopoptik mit einem Systemrohr geschaffen, wel- :ches mit Edelgas oder inertem Gas gefüllt ist, dessen Druck dem äußeren Luftdruck entspricht oder etwas höher ist. Durch das Verfahren nach der Erfindung und das Systemrohr nach der Erfindung! inert gas and then an airtight seal takes place. In order to an endoscope optic is created with a system tube, which is filled with noble gas or inert gas, the pressure of which corresponds to the external air pressure corresponds to or is slightly higher. By the method according to the invention and the system pipe according to the invention
— 3 —- 3 -
209827/0282209827/0282
■wird jegliche größere Druckdifferenz zwischen Außendruck und Innendruck des Systemrohrs bei Anwendung der Heißdampfsterilisation ausgeschaltet, und es können sich keine Porositäten oder Undichtigkeiten, insbesondere an den Lötstellen oder Kittstellen des Ausblickfensters ergeben, welches im allgemeinen in üblicher Weise aus Fensterglas besteht und eine metallische Fassung auf weist, die mit dem metallischen Systemrohr verlötet wird. Die Metallfassung soll dabei möglichst aus einem Werkstoff bestehen, dessen Ausdehnungskoeffizient dem des Glases sehr naheliegt, wobei der Fassungsgrad auch aus einem aufgalvanisierten Metall bestehen kann. Durch die Erfindung ist es aber auch möglich, das Ausblickfenster durch einen Kitt luftdicht einzusetzen, wobei die Bindemittel jedoch den geringen auftretenden Druckdifferenzen und den auftretenden Temperaturen ohne Reißen standhalten müssen»■ becomes any major pressure difference between external pressure and internal pressure of the system pipe when using superheated steam sterilization switched off, and there can be no porosities or leaks, especially at the soldered points or cemented points result of the viewing window, which generally consists of window glass in the usual way and has a metallic frame, which is soldered to the metallic system pipe. The metal frame should, if possible, consist of a material the coefficient of expansion of which is very close to that of the glass, with the degree of framing also being made of a galvanized metal can. The invention also makes it possible to use the viewing window airtight through a putty, with the However, binders must be able to withstand the low pressure differences and temperatures that occur without cracking »
Etwaige Druckdifferenzen werden beim Heißdampfsterilisieren insbesondere dann auf ein Mindestmaß beschränkt, wenn der Innendruck des Edelgases oder inerten Gases im Systemrohr etwas höher ist als der Außendruck.Any pressure differences are particularly important during hot steam sterilization then limited to a minimum if the internal pressure of the noble gas or inert gas in the system pipe is slightly higher is than the external pressure.
Als Edelgas zur Füllung des Systemrohres ist Argon besonders gut geeignet, da Argon einen unbedenklichen kritischen Druck besitzt und das Gewicht von Argon höher ist als das der Luft.Argon is particularly suitable as a noble gas for filling the system pipe, since argon has a harmless critical pressure and the weight of argon is greater than that of air.
209827/0282209827/0282
Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702062178 DE2062178A1 (en) | 1970-12-17 | 1970-12-17 | Process for the production of endoscope optics suitable for hot steam sterilization |
IT31702/71A IT941790B (en) | 1970-12-17 | 1971-11-26 | PROCEDURE FOR MANUFACTURING AN OPTICAL ENDOSCOPE SYSTEM SUITABLE FOR STERILIZATION USING OVERHEATED STEAM |
FR7142558A FR2118469A5 (en) | 1970-12-17 | 1971-11-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702062178 DE2062178A1 (en) | 1970-12-17 | 1970-12-17 | Process for the production of endoscope optics suitable for hot steam sterilization |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2062178A1 true DE2062178A1 (en) | 1972-06-29 |
Family
ID=5791295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19702062178 Pending DE2062178A1 (en) | 1970-12-17 | 1970-12-17 | Process for the production of endoscope optics suitable for hot steam sterilization |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2062178A1 (en) |
FR (1) | FR2118469A5 (en) |
IT (1) | IT941790B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216767A (en) * | 1977-02-21 | 1980-08-12 | Machida Endoscope Co., Ltd. | Endoscope with closed pressurized inner cavity |
US4241729A (en) * | 1977-08-04 | 1980-12-30 | Machida Endoscope Co., Ltd. | Endoscope with gas-tight cap permitting pressurization |
US4341205A (en) * | 1980-01-17 | 1982-07-27 | Olympus Optical Co., Ltd. | Endoscope |
DE3708124A1 (en) * | 1986-03-13 | 1987-09-24 | Olympus Optical Co | ENDOSCOPE |
DE3740417A1 (en) * | 1987-11-28 | 1989-06-08 | Winter & Ibe Olympus | Endoscope optics with a distal window held by a bonding compound |
DE3740416A1 (en) * | 1987-11-28 | 1989-06-08 | Winter & Ibe Olympus | Endoscope optics with a distal window |
US5536244A (en) * | 1993-06-26 | 1996-07-16 | Richard Wolf Gmbh | Endoscopic instrument with improved closure window |
-
1970
- 1970-12-17 DE DE19702062178 patent/DE2062178A1/en active Pending
-
1971
- 1971-11-26 IT IT31702/71A patent/IT941790B/en active
- 1971-11-26 FR FR7142558A patent/FR2118469A5/fr not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216767A (en) * | 1977-02-21 | 1980-08-12 | Machida Endoscope Co., Ltd. | Endoscope with closed pressurized inner cavity |
US4241729A (en) * | 1977-08-04 | 1980-12-30 | Machida Endoscope Co., Ltd. | Endoscope with gas-tight cap permitting pressurization |
US4341205A (en) * | 1980-01-17 | 1982-07-27 | Olympus Optical Co., Ltd. | Endoscope |
DE3708124A1 (en) * | 1986-03-13 | 1987-09-24 | Olympus Optical Co | ENDOSCOPE |
US4779613A (en) * | 1986-03-13 | 1988-10-25 | Olympus Optical Co., Ltd. | Endoscope with means for preventing an observing optical system from being fogged |
DE3740417A1 (en) * | 1987-11-28 | 1989-06-08 | Winter & Ibe Olympus | Endoscope optics with a distal window held by a bonding compound |
DE3740416A1 (en) * | 1987-11-28 | 1989-06-08 | Winter & Ibe Olympus | Endoscope optics with a distal window |
US5536244A (en) * | 1993-06-26 | 1996-07-16 | Richard Wolf Gmbh | Endoscopic instrument with improved closure window |
Also Published As
Publication number | Publication date |
---|---|
FR2118469A5 (en) | 1972-07-28 |
IT941790B (en) | 1973-03-10 |
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