A method and apparatus for draining a liner-type medical suction apparatus. The method includes the acts of positioning the liner-type medical suction apparatus relative to a drainage device including a conduit, causing the conduit to communicate with the liner interior, and draining the fluid from the...http://www.google.co.uk/patents/US6626877?utm_source=gb-gplus-sharePatent US6626877 - Medical suction apparatus and methods for draining same
