Encapsulation methods for fluid-communicating magnetoelastic sensors

A encapsulation package for use in a stent, the encapsulation package comprising:

• a package cover having a tubular shape, the package cover comprising a plurality of perforations extending between in an inner surface of the package cover and an outer surface of the package cover and extending along a longitudinal axis of the package cover, the package cover further comprising grooves at opposing ends of the package cover and a slot adjacent the plurality of perforations;
• a package base comprising a cavity and tongues at opposing ends, each tongue configured to engage a respective groove for mounting the package base to the package cover and positioning the cavity adjacent the plurality of perforations;
• a resonator positioned within the cavity and extending into the slot of the package cover such that the resonator is positioned adjacent the perforations for allowing particulate within the stent to collect and be measured by the resonator during deployment;
• and
• a magnetic cuff comprising magnetic struts and at least one magnetic mounting ring for mounting the magnetic cuff to the outer surface of package cover.

A stent with integrated encapsulation package, the stent having a casing with an outer sidewall and an inner sidewall, the stent comprising:

• a cavity integrally formed in the casing of the stent and extending longitudinally along an axis of the stent and extending from of outer sidewall to the inner sidewall;
• one or more channels formed in the outer sidewall extending longitudinally along the axis, wherein at least one of the one or more channels is adjacent the cavity, and wherein each channel contains a support wire extending longitudinally along the axis;
• a resonator positioned within the cavity such that the resonator is exposed to particulate within the stent for measurement during deployment;
• and
• a cover affixed to the outer sidewall and configured to seal the resonator within the cavity to prevent particulate from exiting the stent through the cavity during deployment.