The purchasing department is an important part of a hospital's management system, and is responsible for coordinating and managing the purchase of various supplies and equipment needed by the hospital. For single-use sterile medical supplies, the purchasing department will work with suppliers to select appropriate products based on the needs and specifications of the hospital and conduct the procurement process, including inquiry, comparison, negotiation and contract signing. The purchasing department is also responsible for ensuring that the purchased medical supplies comply with relevant quality standards and regulatory requirements, and establishing long-term relationships with suppliers to ensure that hospitals have timely access to high-quality single-use sterile medical supplies.