[특허]Sterilizer test method and apparatus

Sterilizer test method and apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01N-030/54 A61L-002/24
출원번호	US-0263801 (1994-06-22)
발명자 / 주소	Colvin Richard R. (Orchard Hill Rd. Katonah NY 10536)
인용정보	피인용 횟수 : 33 인용 특허 : 0

초록 ▼

The operation of a steam sterilizer is monitored by a test unit and a controller which together comprise a system which can be operated in two principal method schemes: (1) the testing for completeness of air removal from a sterilizer chamber, and (2) the testing for effective sterilization conditions. These methods each have two principal modes of operation: (a) the performance of a Bowie and Dick type test, as is usually done on a once-a-day basis; and (b) monitoring the sterilizer during load conditions. In a preferred embodiment a test unit including temperature and pressure sensors, a moisture sensor and a heat sink are positioned within the chamber of a steam sterilizer and transmit by radio the conditions therein to an external controller. The test unit can employ a replaceable cartridge to assure effective operation even after a large number of cycles of operation.

대표청구항 ▼

A method for determining the effectiveness of air removal from the chamber of a steam sterilizer, for the detection of air leaks and for monitoring the sterilization conditions within the chamber comprising: placing within a chamber of a sterilizer a test device having a structure capable of concentrating and trapping small amounts of air critical to the sterilization process to the location of a temperature sensor and sensing a temperature by means of the temperature sensor and generating a signal (T1) indicative of the measured temperature, wherein said test device including wall members defining an elongated cavity with a predetermined length and cross section having an opening at one end of the cavity to permit the entrance of ambient gases, a temperature sensor capable of generating signal T1 indicative of the temperature at its location at the end of the test cavity opposite from said opening and a heat sink capable of condensing steam disposed within the cavity between the opening and the temperature sensor to thereby concentrate any air present in the chamber in the direct vicinity of the temperature sensor, said heat sink comprising a material of a density, porosity and thermal conductivity effective to condense a sufficient amount of steam to cause air, if present, to collect at the end of the test device where the temperature sensor is located; generating a signal T1; generating a signal (Tr) indicative of a reference temperature; comparing signal T1 to signal Tr; and generating a signal indicative of either a pass or fail condition based on the results of the comparison.

이 특허를 인용한 특허 (33)

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Potter, Gary J.; Braun, Marc; Kieffer, Jeffrey A., Heater and controls for extraction of moisture and biological organisms from structures.
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Pai Sanjeeth M. ; Zell Peter E., Method for real time monitoring and control of load sterilization and parametric release.
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Jacobs, Paul T.; Wang, Jenn-Han; Lin, Szu-Min, Monitoring of cleaning process.
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Hellman Michael Paul ; Washburn James F. ; Sajkowski Anthony ; Hume Donald J. ; Drenick Andrew F., Monitoring steam traps using RF signaling.
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Wang Jianjun ; Mondiek David A., Self-contained sterilant monitoring assembly and method of using same.
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Wang, Jianjun; Mondiek, David A., Self-contained sterilant monitoring assembly and method of using same.
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Karschnia, Robert J., Steam trap monitoring.
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Duthie ; Jr. Robert E. (9321 Warner Gulf Rd. Holland NY 14080), Sterilization method and apparatus.
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Matsunaga Katsutoshi,JPX ; Ono Kouji,JPX ; Nishimura Takashi,JPX, Sterilizer.
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Matsunaga Katsutoshi,JPX ; Ono Kouji,JPX ; Nishimura Takashi,JPX, Sterilizer.
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Kuepper Anton,DEX ; Kirk Brian,GBX, Sterilizer testing systems.
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Hedman, David E., System and process for removing or treating harmful biological and organic substances within an enclosure.
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Hedman, David, System and process for removing or treating harmful biological and organic substances within structures and enclosures.
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Martel, Paul, Test device for checking a pre-vacuum steam sterilization apparatus.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Sterilizer test method and apparatus 원문보기

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