73 results about "Hydrogen Peroxide Sterilization" patented technology

A surgical instrument including a first portion and a second portion, wherein the second portion can be sterilized separately from the first portion. The first portion can comprise an anvil, a staple cartridge channel and / or staple cartridge, and a movable cutting member. The second portion can comprise electronic components configured to control the surgical instrument and / or record data collected during the use of the surgical instrument. The first portion can be sterilized using a gamma radiation sterilization process while the second portion can be sterilized using a different sterilization process, such as steam, ethylene oxide, ozone, and / or hydrogen peroxide sterilization processes, for example. As a result, the first and second portions can be sterilized separately and delivered in two separate containers. The second portion can be stored within a sealed bag and can include an electrical terminal which can penetrate the bag and communicate with the first portion.

The invention discloses a multi-purpose sterilization method. The multi-purpose sterilization method includes the following steps: (1) setting a sterilization room, (2) setting a vacuum supply device, (3) setting a temperature control device, (4) setting a hydrogen peroxide sterilization device, (5) setting a steam sterilizer, (6) setting an air cleaning device, (7) setting a control box, and (8) sterilizing. The invention further discloses a multifunctional sterilizer which is made with the multi-purpose sterilization method. The multi-purpose sterilization method is simple in steps, easy to achieve, high in efficiency and various in functions and the effects of low temperature type sterilization or high temperature type sterilization can be achieved. The multifunctional sterilizer is ingenious in design, reasonable in structure, the hydrogen peroxide sterilization device and the steam sterilizer are arranged, the low temperature type sterilization function and the high temperature type sterilization function are integrated, and the corresponding effect of low temperature type sterilization or high temperature type sterilization can be chosen according to required device types which need sterilization. The multifunctional sterilizer is convenient to use, wide in application, use costs of healthcare organizations are effectively reduced and the multifunctional sterilizer is beneficial for wide promotion and application.

A metering unit is provided for metering hydrogen peroxide into an evacuated vessel, for controlling the concentration of hydrogen peroxide in the vessel. The metering unit includes a body defining a metering passage having a fixed volume and upstream and downstream ends, an upstream connection for connecting the upstream end to a hydrogen peroxide supply, a downstream connection for connecting the downstream end to a hydrogen peroxide vaporizer, an upstream valve for selectively closing the upstream end and a downstream valve for selectively closing the downstream end, and a controller for operating the valves in a non-overlapping and opposite manner for selectively preventing opening of both valves at the same time. With the metering unit of this disclosure, expensive peroxide concentration measurement systems are replaced with an economical monitoring of the number of injection cycles using a passage of fixed volume.

A method of metering of hydrogen peroxide gas into an evacuated sterilization chamber is disclosed. The method includes the steps of continuously monitoring a pressure in the sterilization chamber; connecting a passage of known volume to the evacuated chamber for evacuating the passage; sealing the passage; connecting the evacuated passage to a supply of hydrogen peroxide solution for a time sufficient to draw the hydrogen peroxide solution into and fill the passage; sealing the passage; and repeating those steps until a preselected pressure increase in the sterilization chamber is detected. The pressure increase is preferably 19 Torr. The known volume of the metering passage is preferably between 75 μL and 15 μL to control unwanted condensation of hydrogen peroxide in the sterilization chamber. Expensive peroxide concentration measurement systems are replaced with an economical low cost pressure sensor for control of the hydrogen peroxide concentration.