The Safety and Performence of ShockPulse-10 in Patients with Coronary Artery Calcification

Key Inclusion Criteria:

1. Patient is ≥ 18 years of age;
2. Patients with significant coronary artery disease (including stable or unstable angina and asymptomatic myocardial ischemia) who are suitable for PCI treatment;
3. A single newly developed stenosis of the target vessel, which is the left anterior descending artery, right coronary artery, or circumflex artery (or its branches), with stenosis degree ≥70% or ≥50% (Visually inspect ) and accompanied by evidence of ischemia;
4. The target lesion is a primary, in situ coronary artery lesion;
5. The reference vessel diameter for the target lesion is 2.0-4.0mm, and the length of the target lesion is ≤40mm (Visually inspect);
6. Visual assessment indicates that the lesion site can accommodate the passage of a pre-dilator or trial instrument through the lesion;

7. The target lesion site has moderate to severe calcification (meeting one of the following conditions)：

   ① Angiography: Moderate calcification :clearer and more easily visible high-density shadows during cardiac pulsation; Severe calcification :clear high-density shadows both during and at rest;

   ② IVUS calcium score ≥2 points for superficial intimal, deep medial, and mixed calcification;

8. TIMI grade 3 in target vessel before registration (pre-dilation is allowed);

Key exclusion Criteria:

1. Left ventricular ejection fraction \< 40%；
2. NYHA class III or IV heart failure；
3. Patients with single coronary artery supply;
4. Patients with evidence of dissection at the site of the lesion on imaging;
5. The imaging suggests that the vascular pathway is tortuous, making it difficult for the pre-dilatation device to reach the target location or to be retrieved;
6. Patients with active systemic infections;
7. Patients with uncontrollable severe hypertension (systolic pressure > 180 mmHg or diastolic pressure > 110 mmHg);
8. Patients with coagulopathy, hypercoagulable state or significant bleeding tendency (hemoglobin \<10g/dL or platelet count \<80×10\^9/L);