The invention relates to a device and a method for the gentle placement of a patient in a defined position. An aspect that the silanol bond is formed by reacting a silane coupling agent with the metal oxide, and an aspect that the silane coupling agent has a reactive terminal are preferred. The operating system is configured to use a first mobile device as a first type of inputoutput device and the operating system is configured to use a second mobile device as a second type of inputoutput device. A disposable diaper and a disposable diaper changing mat are received within the first pocket. Accordingly, the inserted memory card can be pushed to touch the resilient contact member to enable the resilient contact member of the card connector to certainly detect the write protection of the memory card.