Patent ID: 9604485
Date: 2017-03-28
CPC Classifications: A61B,B41M,G01L

Claim:
1. A device, comprising: a first element comprising an elastomeric hydrophobic material and a colour-forming material dispersed in at least a portion of the elastomeric hydrophobic material; and a second element comprising a colour developing material; wherein the device is adapted to record one or more parameters selected from: duration of application of a pressure applied to the device or portion thereof, wherein the pressure level is above or below a predetermined threshold value, and wherein the duration of application is continuous or non-continuous; application of contact with the device; duration of contact, a predetermined level of pressure, or both, wherein the duration of contact is continuous or non-continuous; the distribution of application of a pressure to the device or portion thereof, wherein the pressure is above or below a predetermined threshold value; distribution of contact with the device or a portion thereof; and application of a shear force, wherein the parameter is selected from direction, the shear force, or both.