Patent ID: 7648470

Claim:
An elasticity measuring device for being inserted into a canal part of a human body and for measuring elasticity of the inner side of the canal part of the human body, said device comprising: a probe base for being inserted into the canal part of the human body; a probe arranged around said probe base, which is located near the inner side of the canal part of the human body when the device is inserted into the canal part and is driven to press onto and return from the biological tissue; a resilient arm member having one end and an other end, said one end supporting said probe thereon and said other end being firmly fixed to said probe base, said resilient arm member comprising a plurality of spring members, said probe comprising a plurality of probes being symmetrically arranged around said probe base through corresponding spring members; a stress detection sensor provided on at least one of the plurality of probes, for detecting hysteresis of the stress applied to the biological tissue based on the repulsion from the biological tissue when said at least one of the plurality of probes is driven to press onto and return from the biological tissue; and a deviation detection sensor for detecting the hysteresis of changes in distance of said stress detection sensor with respect to said probe base; wherein the elasticity of the biological tissue is measured based on the stress and deviation magnitude characteristics when the at least one of the plurality of probes is driven to press onto and return from the biological tissue.