DE949253C - Process for the sterilization of liquids by treatment with ultrasound - Google Patents

Process for the sterilization of liquids by treatment with ultrasound

Info

Publication number
DE949253C
DE949253C DESCH16751A DESC016751A DE949253C DE 949253 C DE949253 C DE 949253C DE SCH16751 A DESCH16751 A DE SCH16751A DE SC016751 A DESC016751 A DE SC016751A DE 949253 C DE949253 C DE 949253C
Authority
DE
Germany
Prior art keywords
liquid
ultrasound
liquids
sterilization
treatment
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.)
Expired
Application number
DESCH16751A
Other languages
German (de)
Inventor
Kurt Tesser
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.)
Schoeller and Co Elektrotecnische Fabrik GmbH and Co
Original Assignee
Schoeller and Co Elektrotecnische Fabrik GmbH and Co
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 Schoeller and Co Elektrotecnische Fabrik GmbH and Co filed Critical Schoeller and Co Elektrotecnische Fabrik GmbH and Co
Priority to DESCH16751A priority Critical patent/DE949253C/en
Application granted granted Critical
Publication of DE949253C publication Critical patent/DE949253C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/025Ultrasonics

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Special Spraying Apparatus (AREA)
  • Physical Water Treatments (AREA)

Description

Verfahren von Sterilisieren von Flüssigkeiten durch Behandeln mit Ultraschall Es ist bereits bekannt, Flüssigkeiten durch Behandlung mit Ultraschallwellen keimfrei zu machen, weil man beobachtet hat, daß Bakterien im Ultraschallfeld bei ausreichender Schallstärke mechanisch zerschlagen werden. So ist z. B. bekannt, die zu entkeimende Flüssigkeit nach dem Prinzip der Ultraschallpfeifen mit hoher Geschwindigkeit gegen eine Kante strömen zu lassen, wobei Ultraschallschwingungen in der Flüssigkeit entstehen. Bei der großen Strömungsgeschwindigkeit der Flüssigkeit ist die Schalleinwirkung jedoch von so kurzer Dauer, daß weder mit einer zur Entkeimung ausreichenden noch mit einer gleichmäßigen Beschallung aller Teile der Flüssigkeit gerechnet werden kann. Der genannte Vorschlag ist daher auch nicht in die Praxis eingeführt worden.Method of sterilizing liquids by treating with Ultrasound It is already known to treat liquids with ultrasound waves to make germ-free, because it has been observed that bacteria in the ultrasonic field be mechanically smashed with sufficient sound strength. So is z. B. known the liquid to be sterilized according to the principle of ultrasonic whistling with high Let velocity flow against an edge, with ultrasonic vibrations arise in the liquid. With the high flow velocity of the liquid However, the sound effect is so short that it is not necessary for sterilization sufficient with a uniform sonication of all parts of the liquid can be expected. The suggestion mentioned is therefore also not in practice has been introduced.

Nach einem anderen bekannten Vorschlag soll die Flüssigkeit durch eine Zentrifuge getrieben werden, wobei beim Aufprall auf eine feste Wand ebenfalls Ultraschallschwingungen entstehen können. According to another known suggestion, the liquid should pass through a centrifuge are driven, with the impact on a solid wall also Ultrasonic vibrations can arise.

Aber auch hierbei ist keine Gewähr dafür gegeben, daß die Beschallung ausreicht, um sämtliche Bakterien zu zerschlagen. Vor allem aber ist die Trennung der entkeimten Teile der Flüssigkeit von den nicht entkeimten in den beiden genannten Fällen nicht möglich.But even here there is no guarantee that the sound reinforcement enough to break up all bacteria. But above all is the separation the sterilized parts of the liquid from the non-sterilized in the two mentioned Cases not possible.

Die Erfindung betrifft ein Verfahren zum Entkeimen von Flüssigkeiten mittels Ultraschall, bei welchem diejenigen Teile der Flüssigkeit, die einer intensiven Beschallung ausgesetzt waren, vollständig von der übrigen Flüssigkeit getrennt werden. Dabei läßt sich laufend genau kontrollieren, ob die Schallintensität ausreichend war, alle Bakterien zu zerschlagen. The invention relates to a method for disinfecting liquids by means of ultrasound, in which those parts of the liquid that have an intense Exposed to sonication can be completely separated from the rest of the liquid. You can continuously check whether the sound intensity was sufficient to crush all bacteria.

Die Erfindung macht von der bekannten Erscheinung Gebrauch, daß Flüssigkeiten, die einer starken Ultraschalleinwirkung ausgesetzt werden, weit unterhalb ihres Siedepungtes in Nebel übergeben, der aus der Flüssigkeit entweicht. The invention makes use of the known phenomenon that liquids, that are exposed to strong ultrasound, well below theirs Transfer boiled pungents in mist, which escapes from the liquid.

Die Erfindung besteht daher darin, die zu entkeimende8Flüssigkeit mittels einesUltraschallfeldeszu vernebeln, den Nebel abzuleiten und wieder zu kondensieren. Nur diejenigen Flüssigkeitsteilchen vernebeln, welche einer maximalen Schallintensität ausgesetzt waren. Bei genügender Größe der Schallintensität gehen in den Nebel nur noch Bakterientrümmer, aber keine lebenden und vermehrungsfähigen Bakterien über. Der Schwellenwert der Intensität für die Vernebelung der Flüssigkeit im Ultraschallfeld ist vom spezifischen Gewicht der Flüssigkeit, ihrer Viskosität und ihrem Dampfdruck abhängig. Man kann daher den Schwellenwert der Vernebelung dadurch steigern, daß man über dem Flüssigkeitsspiegel Überdruck erzeugt. The invention therefore consists in the liquid to be sterilized to nebulize by means of an ultrasonic field, to divert the mist and to condense it again. Only nebulize those liquid particles which have a maximum sound intensity were exposed. If the sound intensity is sufficient, only go into the fog still debris, but no living bacteria capable of reproduction. The threshold value of the intensity for the nebulization of the liquid in the ultrasonic field is of the specific weight of the liquid, its viscosity and its vapor pressure addicted. You can therefore increase the nebulization threshold by that overpressure is generated above the liquid level.

Das Verfahren nach der Erfindung hat insbesondere für die keimfreie Herstellung von Flüssigkeiten für therapeutische Zwecke Bedeutung. The method according to the invention has in particular for the aseptic Production of fluids for therapeutic purposes.

PATENTANSPROCHE: I. Verfahren zum Sterilisieren von Flüssigkeiten durch Behandeln mit Ultraschall, dadurch gekennzeichnet, daß die Flüssigkeit durch Ultraschallwirkung vernebelt, der Nebel abgeleitet und kondensiert wird. PATENT CLAIM: I. Methods of Sterilizing Liquids by treating with ultrasound, characterized in that the liquid by Ultrasound effect nebulises, the mist is diverted and condensed.

Claims (1)

2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß der Druck über dem Flüssigkeitsspiegel über den Atmosphärendruck erhöht wird. 2. The method according to claim I, characterized in that the pressure is increased above atmospheric pressure above the liquid level.
DESCH16751A 1954-11-20 1954-11-20 Process for the sterilization of liquids by treatment with ultrasound Expired DE949253C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH16751A DE949253C (en) 1954-11-20 1954-11-20 Process for the sterilization of liquids by treatment with ultrasound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH16751A DE949253C (en) 1954-11-20 1954-11-20 Process for the sterilization of liquids by treatment with ultrasound

Publications (1)

Publication Number Publication Date
DE949253C true DE949253C (en) 1956-09-13

Family

ID=7427769

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH16751A Expired DE949253C (en) 1954-11-20 1954-11-20 Process for the sterilization of liquids by treatment with ultrasound

Country Status (1)

Country Link
DE (1) DE949253C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037830B (en) * 1957-02-20 1958-08-28 Fruengel Frank Dr Ing Process for the cold sterilization of milk and other beverages in the food industry
DE3440014A1 (en) * 1984-04-14 1986-05-07 Kolbus Gmbh & Co Kg METHOD AND DEVICE FOR BACTERIZING FOOD CONTAINERS
DE3739979A1 (en) * 1987-11-25 1989-06-08 Katadyn Produkte Ag Appliance for disinfecting water by UV irradiation
WO1989010761A1 (en) * 1988-05-03 1989-11-16 Bertwin Langenecker Process and device for inactivating viruses contained in a carrier medium
DE4206978A1 (en) * 1992-01-14 1993-07-29 Roiner Franz Destruction of microorganisms in gaseous, liq. or pasty medium
DE3943590C2 (en) * 1989-02-08 1995-05-24 Bran & Luebbe Virus inactivation in liquids

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037830B (en) * 1957-02-20 1958-08-28 Fruengel Frank Dr Ing Process for the cold sterilization of milk and other beverages in the food industry
DE3440014A1 (en) * 1984-04-14 1986-05-07 Kolbus Gmbh & Co Kg METHOD AND DEVICE FOR BACTERIZING FOOD CONTAINERS
US4680163A (en) * 1984-04-14 1987-07-14 Kolbus Gmbh & Co. Kg Process and apparatus for sterilizing containers
DE3739979A1 (en) * 1987-11-25 1989-06-08 Katadyn Produkte Ag Appliance for disinfecting water by UV irradiation
WO1989010761A1 (en) * 1988-05-03 1989-11-16 Bertwin Langenecker Process and device for inactivating viruses contained in a carrier medium
DE3943590C2 (en) * 1989-02-08 1995-05-24 Bran & Luebbe Virus inactivation in liquids
DE4206978A1 (en) * 1992-01-14 1993-07-29 Roiner Franz Destruction of microorganisms in gaseous, liq. or pasty medium

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