Apparatus and method for discharging urine from a urine collection bag using an electrically operated valve means connected to the drain tube of the urine collection bag and the electrically operated valve means mounted on a support means, such as a wheelchair, in a manner to be separated from the user's...http://www.google.sh/patents/US5397315?utm_source=gb-gplus-sharePatent US5397315 - Apparatus for electrically controlling the discharge of urine from a urine collection bag
