Radial Artery Band Series Snap Type

Components

1. Wrist Strap: Made of medical-grade non-woven fabric and elastic synthetic material, with an adjustable Velcro fastener to accommodate different wrist sizes;

2. Rigid Support Plate + Medical-Grade Soft Pressure Pad: The flat pressure head aligns with the puncture site to provide even surface pressure rather than point pressure; some pressure pads are transparent, allowing for direct observation of bleeding or hematomas;

3. Single-use sterile packaging

Working principle

1. After the procedure, align the pressure pad with the radial artery puncture site and secure the wrist strap;

2. Apply vertical, uniform mechanical pressure to the puncture site to close the vascular puncture wound and promote platelet aggregation and coagulation;

3. Maintain pressure at a level that achieves hemostasis without obstructing the ulnar artery’s collateral circulation (assessed via the Allen test prior to surgery), thereby preventing hand ischemia and nerve damage;

4. Gradually reduce pressure in stages according to standard protocols and slowly remove the compression.

Standard Procedure and Precautions

1. Preoperative Assessment: The Allen test must be performed to confirm adequate collateral circulation in the ulnar artery;

2. Positioning and Placement: After successful puncture and sheath removal, precisely align the pressure pad with the puncture site and secure the wrist strap (leaving enough room to insert one finger);

3. Pressurization and Gradual Decompression: Tighten until no bleeding is observed. Postoperatively, follow the hospital protocol (e.g., gradual decompression every 2 hours) and complete removal within 8–10 hours;

4. Monitoring Guidelines: Continuously monitor finger color, temperature, sensation, and mobility throughout the procedure. If cyanosis, numbness, or severe pain occurs, immediately reduce pressure and report the incident. Strictly prohibit blood pressure measurement on the operative side, lifting heavy objects, or excessive wrist flexion;

5. Contraindications: Contraindicated or use with caution in patients with severe peripheral vascular disease, coagulation disorders, infection at the puncture site, or a negative Allen test.