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DE4403794A1 - Sterilisation of surgical instruments - Google Patents

Sterilisation of surgical instruments

Info

Publication number
DE4403794A1
DE4403794A1 DE19944403794 DE4403794A DE4403794A1 DE 4403794 A1 DE4403794 A1 DE 4403794A1 DE 19944403794 DE19944403794 DE 19944403794 DE 4403794 A DE4403794 A DE 4403794A DE 4403794 A1 DE4403794 A1 DE 4403794A1
Authority
DE
Germany
Prior art keywords
tank
air
pressure
temp
closed system
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Withdrawn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
DE19944403794
Other languages
German (de)
Inventor
George Abdelmassih Zaki
Fouad Dipl Ing Khalil
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19944403794 priority Critical patent/DE4403794A1/en
Publication of DE4403794A1 publication Critical patent/DE4403794A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Sterilisation of surgical instruments, uses hot air at high pressure in a closed system, ambient air is drawn by suction into the high pressure air tank (D) and the air temp. in the sterilising tank (B) is raised by electrical or gas heating. The air in the air tank (D) is allowed to expand into the sterilising tank (B), and the heater raises the temp. to min. 200 deg C. When the air is sucked rapidly from one tank (B) to the other (D), the temp. in the first tank (B) changes abruptly from 300 deg C to 5-10 deg C, in a temp. change action which kills bacteria and viruses. The air in the pressure tank (D) can be used repeatedly in the closed system.

Description

Dieses System hängt von drei Bedingungen abThis system depends on three conditions

  • a) der Geschwindigkeit des Wechsels der Tempera­ tur von hoch bis tief,a) the rate of change of tempera door from high to low,
  • b) der Luft innerhalb des Tanks des Sterili­ sators, die sich unter hohem Druck befin­ det,b) the air inside the sterile tank sators that are under high pressure det,
  • c) der Wiederholung der heißen Luft unter ho­ hem Druck (im geschlossenen Kreis).c) the repetition of the hot air under ho hem pressure (in a closed circle).

Die einzelnen Schritte des Verfahrens:The individual steps of the process:

  • 1. Schritt: Wir benutzen die Außenluft, um diese in den Tank zu pressen, indem wir eine Vakuumpumpe (oder einen Kompressor) benutzen. Jetzt öffnen wir Hähne 1, 2, 7 und 6.Step 1: We use the outside air to force it into the tank using a vacuum pump (or compressor). Now we open taps 1 , 2 , 7 and 6 .
  • 2. Schritt: Wenn die Luft in Tank D den gewünschten Druck er­ reicht hat, stoppen wir den Kompressor.Step 2: When the air in tank D reaches the desired pressure is enough, we stop the compressor.
  • 3. Schritt: Wir legen die chirurgischen Instrumente in den Tank des Sterilisators (Tank B). Dann schließen wir den Deckel A des Sterilisators.3rd step: We put the surgical instruments in the Sterilizer tank (tank B). Then we close cover A of the sterilizer.
  • 4. Schritt: Wir öffnen Hähne 4 und 1, und die Luft (Druckluft) entweicht von Tank D (Tank des Luftdrucks) zu Tank B (Tank der Sterilisation).Step 4: We open taps 4 and 1 , and the air (compressed air) escapes from tank D (tank of air pressure) to tank B (tank of sterilization).
  • 5. Schritt: Wir benutzen einen elektrischen Heizer C (mit elektrischem Strom oder Gas).5th step: We use an electric heater C (with electrical current or gas).
  • 6. Schritt: Dadurch ist jetzt die Luft in Tank B (Sterilisator) für eine bestimmte Zeit (ca. 5-15 Minuten) sehr hoch.Step 6: The air is now in tank B (sterilizer) very high for a certain time (approx. 5-15 minutes).
  • 7. Schritt: Wir benutzen wieder den Kompressor, um die Luft von Tank B nach Tank D (Tank des hohen Luftdrucks) zu bringen. Jetzt ist die Temperatur in Tank B niedrig (plötzlich; diese Schockreaktion, Temperaturwechsel tötet Bakterien und Viren ab). In diesem Fall öff­ nen wir die Hähne Nummer 1, 3, 2 und 6. Hähne 5 und 7 sind dabei geschlossen.Step 7: We use the compressor again to bring the air from tank B to tank D (tank of high air pressure). Now the temperature in tank B is low (suddenly; this shock reaction, temperature change kills bacteria and viruses). In this case we open the taps number 1, 3, 2 and 6 . Taps 5 and 7 are closed.
  • 8. Schritt: Wir können den Lufttransport von Tank D nach Tank B je nach Bedarf mehrere Male verwenden.Step 8: We can do the air transportation from Tank D to Tank B Use several times as needed.

Claims (1)

Verfahren zur Sterilisation chirurgischer Instrumente durch Benutzung von Heißluft unter hohem Druck in einem geschlossenem System, gekennzeichnet durch folgende Merkmale:
  • 1. Wir saugen die Außenluft zu dem Tank des hohen Luftdrucks D.
  • 2. Wir benutzen eine elektrische Quelle oder Gasheizung als Heiz­ gerät, um die Lufttemperatur im Sterilisator-Tank (Tank B) zu erhöhen.
  • 3. Danach lassen wir die Luft, die sich unter Druck in Tank D befindet, nach Tank B entweichen. Danach setzen wir den Hei­ zer in Funktion. In Tank B muß die Temperatur mindestens 200°C betragen.
  • 4. Wenn wir die Luft schnell von Tank B (Sterilisator) nach Tank D absaugen, ändert sich die Temperatur in Tank B schlagartig von 300°C auf 5-10°C. Dieser Temperatur­ wechsel tötet Bakterien und Viren ab.
  • 5. Wir können die Luft unter hohem Luftdruck in Tank D mehrere Male nach Tank B verwenden, da es sich hierbei um ein ge­ schlossenes System handelt.
Method for sterilizing surgical instruments using hot air under high pressure in a closed system, characterized by the following features:
  • 1. We suck the outside air to the tank of high air pressure D.
  • 2. We use an electrical source or gas heating as a heater to raise the air temperature in the sterilizer tank (tank B).
  • 3. Then we let the air, which is under pressure in tank D, escape to tank B. Then we put the heater into operation. The temperature in tank B must be at least 200 ° C.
  • 4. If we quickly suck the air from tank B (sterilizer) to tank D, the temperature in tank B suddenly changes from 300 ° C to 5-10 ° C. This temperature change kills bacteria and viruses.
  • 5. We can use the air under high air pressure in tank D several times after tank B, since this is a closed system.
DE19944403794 1994-02-03 1994-02-03 Sterilisation of surgical instruments Withdrawn DE4403794A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944403794 DE4403794A1 (en) 1994-02-03 1994-02-03 Sterilisation of surgical instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944403794 DE4403794A1 (en) 1994-02-03 1994-02-03 Sterilisation of surgical instruments

Publications (1)

Publication Number Publication Date
DE4403794A1 true DE4403794A1 (en) 1995-08-10

Family

ID=6509691

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944403794 Withdrawn DE4403794A1 (en) 1994-02-03 1994-02-03 Sterilisation of surgical instruments

Country Status (1)

Country Link
DE (1) DE4403794A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29518880U1 (en) * 1994-11-15 1996-02-01 Gorbahn, Fritz, Dr.med., 58452 Witten Sterilization system for sterilizing medical devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29518880U1 (en) * 1994-11-15 1996-02-01 Gorbahn, Fritz, Dr.med., 58452 Witten Sterilization system for sterilizing medical devices

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Legal Events

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