Patent ID: 8535771

Claim:
A patient interface comprised of at least a first material and a second material, wherein the first and second materials are connected at least partially to each other permanently, wherein the first material has a greater hardness than the second material, wherein a movable functional element made of the first material is movable so as to deform the second material so that restoring forces of the second material at least partially return the functional element, wherein the function of a locking connection and/or a snap-in connection is effected by the element of the first material, wherein the second material at least partially forms a grip surface for gripping by a user to operate the locking and/or snap-in connection, wherein the first material defines free spaces and the second material completely fills at least some of the free spaces of the first material and at least partially surrounds the first material, wherein the free spaces are movement spaces into which the functional element can deflect, wherein the second material is a compressible and/or elastic material and is unloaded in a first state and is compressed and/or expanded and/or torsioned in another state when the functional element is activated, and a restoring force is directed by the second material to the functional element of the first material.