Heart valve clamp

A heart valve clamp, comprising

• a fixed arm mechanism, comprising a fixed arm body and at least two fixed arms, extending outward from the fixed arm body, and integrally formed with the fixed arm body;
• a clamping arm mechanism, comprising a clamping arm body connected to a bottom of the fixed arm body to allow the clamping arm mechanism and the fixed arm mechanism to be fixedly connected to each other for clamping the leaflets of a heart valve, at least two clamping arms, extending outward from the clamping arm body, and integrally formed with the clamping arm body, a pulling arm base, and at least two pulling arms extending outward from the pulling arm base, wherein the pulling arm base is located at a bottom of the clamping arm body, and the at least two pulling arms are integrally formed with the at least two clamping arms;
• a driving mechanism, comprising a first driving assembly that drives the fixed arm to open or close in relation to the fixed arm body, and a second driving assembly that drives the clamping arm to open or close in relation to the clamping arm body, and
• a delivery sheath fixed on a top of the fixed arm body, wherein
• the fixed arm mechanism further comprises a sheath hanger on the top of the fixed arm body, and the sheath hanger is detachably and fixedly connected with the delivery sheath,
• the sheath hanger has at least one T-shaped hook protruding from the top of the fixed arm body and a fixing groove is arranged at a bottom of the delivery sheath for receiving the sheath hanger, and the fixing groove is engaged with the sheath hanger, is bendable, and is separable from the engagement, and
• the fixed arm mechanism and the clamping arm mechanism are both made of shape memory alloy.