Title of Invention

METHOD AND APPARATUS FOR OZONE STERILIZATION

Abstract The sterilization method disclosed includes the steps of providing a sterilization chamber; placing the article into the sterilization chamber; sealing the sterilization chamber; applying a vacuum of a preselected vacuum pressure to the sterilization chamber; supplying water vapour to the sterilization chamber under vacuum; supplying ozone-containing gas to the sterilization chamber; maintaining the sterilization chamber sealed for a preselected treatment period; and releasing the vacuum in the sterilization chamber, whereby a vacuum pressure is used which lowers the boiling temperature of water in the sterilization chamber below the temperature in the sterilization chamber. One or more ventilating cycles can be added to the preferred method for removing the remaining ozone and humidity from the sterilization chamber. Single cycle sterilization with ozone is more efficient and provides for a shorter sterilization cycle than with ETO and requires few changes in user habits. Moreover, the ozone-based process in accordance with the invention is compatible for use with current packaging, such as sterile pouches and rigid containers. The sterilization process is simple and substantially avoids human errors caused by false interpretation and handling. The ozone sterilization method of the invention requires substantially no aeration or cooling down of sterilized instruments so that they can be used immediately following the sterilization cycle. This allows hospitals to reduce the cost of maintaining expensive medical device inventories.
Full Text

Documents:

IN-PCT-2001-01080-FORM-27.pdf

IN-PCT-2001-1080-KOL-CORRESPONDENCE.pdf

IN-PCT-2001-1080-KOL-FORM 27.pdf

IN-PCT-2001-1080-KOL-FORM-27.pdf

in-pct-2001-1080-kol-granted-abstract.pdf

in-pct-2001-1080-kol-granted-claims.pdf

in-pct-2001-1080-kol-granted-correspondence.pdf

in-pct-2001-1080-kol-granted-description (complete).pdf

in-pct-2001-1080-kol-granted-drawings.pdf

in-pct-2001-1080-kol-granted-examination report.pdf

in-pct-2001-1080-kol-granted-form 1.pdf

in-pct-2001-1080-kol-granted-form 18.pdf

in-pct-2001-1080-kol-granted-form 2.pdf

in-pct-2001-1080-kol-granted-form 3.pdf

in-pct-2001-1080-kol-granted-form 5.pdf

in-pct-2001-1080-kol-granted-gpa.pdf

in-pct-2001-1080-kol-granted-letter patent.pdf

in-pct-2001-1080-kol-granted-reply to examination report.pdf

in-pct-2001-1080-kol-granted-specification.pdf

in-pct-2001-1080-kol-granted-translated copy of priority document.pdf


Patent Number 220496
Indian Patent Application Number IN/PCT/2001/1080/KOL
PG Journal Number 22/2008
Publication Date 30-May-2008
Grant Date 28-May-2008
Date of Filing 15-Oct-2001
Name of Patentee TS03 INC
Applicant Address 2505, RUE DALTON, SAINTE-FOY, QUEBEC G1P 3S5
Inventors:
# Inventor's Name Inventor's Address
1 SIMARD MARIO 4855, 6TH AVENUE, #403, CHARLESBOURG, QUEBEC, G1H 6Y1
2 FOURNIER STEPHANE 113, RUE DES OEILLETS LEVIS, QUEBEC, G6V 7S9
3 DUFRESNE SYLVIE 1329 PLACE LIMOUSIN, CHALESBOURG, QUEBEC, G1G 4W3
4 TURCOT RICHARD 4504 PROMENADE-DES-SOEURS, CAP-ROUGE, QUEBEC G1Y 2V5
5 ROBITAILLE SIMON 7417, RUE DU COLIBRI, CHARNY, QUEBEC, G6X 3L1
PCT International Classification Number A61L 2/20,2/26
PCT International Application Number PCT/CA00/00059
PCT International Filing date 2000-01-24
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2,270,512 1999-04-30 Canada