US Patent 6952605 Pneumatic release mechanism for a patient contacting article

A patient contacting assembly comprising a patient contacting member that secures to the surface of a patient by means of an adhesive disposed between the patient contacting member and the patient. A channel is defined through the patient contacting member to enable a release fluid to be injected between the patient contacting member that the patient. Providing the release fluid between the patient contacting member and the patient at least partially reduces the bonding strength of the adhesive, making it easier to remove the patient contacting member from the patient and provides a pneumatic lift, urging the patient contacting member off of the surface of the patient.