The Clinical Research of the Safety and Effectiveness Evaluation for Using Echocardiography-guided Liwen RF Radiofrequency Ablation System to Treat Hypertrophic Obstructive Cardiomyopathy

Inclusion Criteria

• •1. Subject has pressure gradient of left ventricular outflow tract (LVOT) ≥50 mmHg（with Systolic Anterior Motion）in the resting-state or after exercise stress test.
• •2. Subject with obvious clinical symptoms.
• •3. Subject with New York Heart Association (NYHA) cardiac function ≥ II grade.
• •4. Subject with adequate drug treatment is not effective or cannot tolerate side effects of the drug.
• •5. Subject was informed of the nature of the clinical study and agreed to participate in all the requirements of the clinical study, signed an informed consent form, and agreed to complete the following checks.