Implantable cardiovascular sensor
AssigneeIP2Ipo Innovations Limited
InventorsMohammad Reza Bahmanyar, Christopher Neil McLeod
Life of this patent
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Abstract
An implantable cardiovascular pressure sensor comprising a rigid enclosure sealed by a flexible membrane; and an elongate compliant member comprising a piezoelectric material, the member having a width and a length greater than the width, and two ends separated by the length and two sides separated by the width; wherein the flexible membrane is coupled to the elongate compliant member to transfer external fluid pressure load to the elongate compliant member to cause deflection of the elongate compliant member in response to changes in the external fluid pressure; the pressure sensor further comprising a first acoustic wave device provided by the piezoelectric material of the elongate compliant member for sensing said deflection.
Claims20
An implantable cardiovascular pressure sensor comprising:
- a rigid enclosure sealed by a flexible membrane;
- and
- a compliant member comprising a piezoelectric material, the compliant member having a width, a length, two ends separated by the length, and two sides separated by the width;
- the pressure sensor further comprising:
- a first acoustic wave device provided by the piezoelectric material of the compliant member,
- wherein the two ends of the compliant member are supported on or rigidly fixed to the rigid enclosure and the two sides are not rigidly connected to the rigid enclosure, and
- wherein the first acoustic wave device is disposed on an internal face of the compliant member.
An implantable cardiovascular pressure sensor comprising:
- an enclosure, having a wall comprising a compliant region, integral with the wall;
- a deflectable piezoelectric member coupled to the compliant region;
- and
- an acoustic wave transducer,
- wherein the deflectable piezoelectric member provides the substrate of the acoustic wave transducer,
- wherein the deflectable piezoelectric member has a width and a length,
- wherein the two ends of the deflectable piezoelectric member are supported on or rigidly fixed to the enclosure and the two sides are not rigidly connected to the enclosure, and
- wherein the acoustic wave transducer is disposed on an internal face of the compliant region.
Dependencies are inferred from the claim text.