US Patent 10441155 Medical devices with battery removal

A battery-powered medical device comprising: an outer housing having an opening formed therein; a power source housed within the outer housing, the outer housing being configured to at least partially enclose the power source so as to prevent contamination of the power source with biohazardous materials, the power source being removable from the outer housing via the opening; and a cover configured to cover the opening in the outer housing and to retain the power source within the outer housing, wherein the cover is configured to be operated by a user to expose the opening in the outer housing, when the cover is operated to expose the opening, the outer housing is configured to release the power source via the opening without requiring physical contact between the user and the power source, and when the cover is operated to expose the opening, the outer housing is configured to provide a direct path for release of the power source via the opening, such path providing no contact with contaminated surfaces of the medical device.