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Study identifier: NCT07071948 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

A Single-Center Clinical Study on the Efficacy and Safety of VISOR

Condition: Urolithiasis, Calcium Oxalate · Kidney Stone  ·  Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University

PhaseNA
Planned participants20
Who can joinAll sexes, 18 Years to 80 Years
Healthy volunteersNo

About this study

Goal of this trial: To test a new tool called VISOR in adults (aged 18-80) with 1-3 cm kidney or ureter stones. We want to see: 1. If it's safe and works well 2. If its built-in features (flushing/suction, pressure control, and stone-breaking/removal) help clear stones better while keeping surgery safe. Main questions: 1. Can the VISOR clear stones successfully (with fragments \<4 mm left) for at least 9 out of every 10 people within 24 hours after surgery? 2. Will serious problems (like severe infections or ureteral injuries) happen to no more than 1 in 20 people (5%)? 3. Can the device keep pressure inside the kidney below 30 mmHg (a safe level) during the entire surgery? What participants will do: Have stone removal surgery using VISOR (breaks and removes stones at the same time). Get a CT scan within 24 hours after surgery to check if stones are cleared. Return 4 weeks (±1 week) after surgery for: An imaging test (CT or ultrasound) A check for any health problems related to the surgery.

This description comes directly from the study's public registry record.

Talk to the study team

Bohan Wang, MD., Ph.D  ·  +86-13575799866  ·  wangbohan@zju.edu.cn

Wenjun Gao, MD., Ph.D  ·  +86-19817482099  ·  gaowenjun@zju.edu.cn

Always discuss trial participation with your own doctor first.

Locations (1)

2nd Affiliated Hospital, School of Medicine, Zhejiang UniversityHangzhou, Zhejiang, ChinaRecruiting

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Source record: clinicaltrials.gov/study/NCT07071948