초록 ▼

An isolation work station comprising an enclosure, and an air circulation system and high efficiency air filter for generating a downwardly directed laminar air flow through the enclosure. Periodic sterilization of the enclosure may be accomplished by adding a sterilant, such as vaporized hydrogen p

An isolation work station comprising an enclosure, and an air circulation system and high efficiency air filter for generating a downwardly directed laminar air flow through the enclosure. Periodic sterilization of the enclosure may be accomplished by adding a sterilant, such as vaporized hydrogen peroxide, to the airstream, and the filter is impregnated with a catalyst for degrading the vaporized hydrogen peroxide during the purge cycle and wherein the airstream is circulated at a relatively low speed so as to increase the residence time in the filter.

대표청구항 ▼

[ What is claimed is:] [1.] An isolation work station suitable for providing an ultra clean work environment for the production of sterile products, drug manufacturing operations, and the like, and comprising:a generally rectangular enclosure comprising upstanding front and rear side walls, and upst

[ What is claimed is:] [1.] An isolation work station suitable for providing an ultra clean work environment for the production of sterile products, drug manufacturing operations, and the like, and comprising:a generally rectangular enclosure comprising upstanding front and rear side walls, and upstanding opposite end walls, with said side walls and said end walls defining an open top and an open bottom of said enclosure, said frontside wall of said enclosure being transparent, and said enclosure further comprising at least one flexible glove sealably mounted in said front side wall of said enclosure so as to permit a technician to reach through said front side wall and into the enclosure to perform work tasks therein and while being isolated from the environment within the enclosure,upper and lower plenums communicating with the open top and open bottom of the enclosure respectively,filtering means comprising at least one high efficiency particulate air filter sealably mounted in said upper plenum and so as to be disposed horizontally across substantially the entire area of the top of said enclosure, and with said filtering means including a sterilant degrading catalyst, andan air circulation system for circulating air downwardly through said filtering means and said enclosure and comprising a main duct extending from said lower plenum to said upper plenum at a location above said filtering means, and a blower positioned in said main duct for causing air to flow through said main duct from said lower plenum to said upper plenum and then through said filtering means and said enclosure and back to said lower plenum,an air inlet duct communicating with the outside environment and with said main duct, and first valve means positioned in said air inlet duct for permitting selective flow therethrough,first port means communicating with said main duct for permitting the main duct to be selectively connected to the inlet of a vaporized sterilant generator, andsecond port means communicating with the main duct at a location downstream of said first port means for permitting the main duct to be selectively connected to the outlet of the vaporized sterilant generator.