LineMatrix® Biological Vascular Graft for the Creation of Arteriovenous Graft

The study is planned to be conducted at multiple centers, with an intended enrollment of 326 subjects. Protocol-eligible subjects will be randomized in a 1:1 ratio to either the investigational group or the control group. The investigational group will receive a Biological Vascular Graft(LineMatrix®) manufactured by Humatrix Medical Technology (Suzhou) Co., LTD, while the control group will receive an arteriovenous graft (GORE-INTERING®) manufactured by W.L. Gore \& Associates, Inc. The primary endpoints are the Primary patency rate at 6 months postoperatively and the Cumulative Patency Rate at 12 Months postoperatively. Subjects will undergo follow-up during the screening period, at the time of AVG procedure, and at 1 month, 3 months, 6 months, and 12 months post-operatively. Safety and efficacy parameters will be observed and recorded during and after the surgery to evaluate the safety and effectiveness of the LineMatrix® Biological Vascular Graft for the creation of arteriovenous graft in patients with end-stage renal disease (ESRD).

Inclusion Criteria: * (1) Age ≥18 years and ≤80 years, male or female; * (2) Diagnosed with end-stage renal disease (ESRD) requiring maintenance hemodialysis; * (3) Requiring establishment of a long-term hemodialysis vascular access but unable to have a autologous arteriovenous fistula (AVF) created; * (4) Assessed by the investigator as suitable for implantation of an arteriovenous graft (AVG) in the upper extremity; * (5) Able to understand the purpose of the study, voluntarily participating and providing signed informed consent(ICF), and willing to comply with all scheduled follow-up assessments. Exclusion Criteria: * (1) Known or suspected history of allergy to heparin, alcohol, or bovine-derived products; * (2) Planned to undergo renal transplantation or transition to peritoneal dialysis within 1 year; * (3) Hemoglobin concentration \15 × 10⁹/L); * (14) Baseline hypotension, or frequent hypotensive episodes within the past month (frequency ≥5 episodes/month, with hypotension defined as systolic blood pressure \