Patent ID: 11937903
Assignee: MICROJET TECHNOLOGY CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 6:
7. The blood pressure device according to claim 1, wherein the piezoelectric actuator comprises:
a suspension plate in square shape and capable of bending and vibrating;
an outer frame disposed around a periphery of the suspension plate;
at least one supporting element connected between the suspension plate and the outer frame to provide a flexible support for the suspension plate, wherein a surface of the suspension plate and a surface of the outer frame are non-coplanar, so that a chamber space is formed between the surface of the suspension plate and the resonance sheet; and
a piezoelectric element having a side length, wherein the side length of the piezoelectric element is smaller than or equal to a side length of the suspension plate, and the piezoelectric element is attached to a first surface of the suspension plate so as to drive the suspension plate to bend and vibrate when the piezoelectric element is applied with a voltage.