Cornelis Petrus Hendriks,Rudolf Maria Jozef Voncken,Willem Potze,Nicolaas Petrus Willard,Joyce Van Zanten,Mareike Klee
申请号：
US14370982
公开号：
US09999739B2
申请日:
2013.01.10
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A patient interface device includes an elastomeric contacting portion that is structured to directly engage the skin of the user. The contacting portion has an engineered surface that includes a plurality of non-random, predesigned surface features designed to reduce friction and improve user comfort. In one implementation, the pitch between each immediately adjacent pair of the surface features is less than or equal to a predetermined maximum pitch value, and the height of each of the surface features is less than or equal to a predetermined maximum height value.
