Disposable Ureteral (Negative Pressure) Access Sheath

Urinary stone are a common challenge in urology. Although traditional surgical methods can crush stones, the problem of residual stones after surgery has always been difficult to solve. The emergence of the disposable ureteral (negative pressure) access sheath has effectively addressed this dilemma. Equipped with a unique negative pressure suction device, it can synchronously aspirate stone debris out of the body while performing holmium laser lithotripsy, realizing "integrated stone crushing and clearance" treatment and significantly improving the stone clearance rate.

The combination of the disposable ureteral (negative pressure) access sheath and flexible ureteroscope laser lithotripsy has stood out in clinical applications due to multiple advantages. This technology completes the operation through the body's natural lumens (urethra → bladder → ureter → renal pelvis and calyces) without incision or drilling, truly achieving "non-invasive" treatment. Among them, the disposable ureteral (negative pressure) access sheath has excellent flexibility, which can perfectly match the flexible ureteroscope and jointly penetrate into the lesion, achieving a "soft plus soft" treatment effect. It not only greatly reduces postoperative pain for patients but also significantly shortens the recovery period.

Immediate stone clearance and reduced residual stones are one of the core advantages of this technology. Traditional lithotripsy can often only crush stones but cannot clear debris synchronously, which is prone to stone residue and triggers the risk of secondary surgery. In contrast, the negative pressure access sheath can effectively reduce the residual rate by real-time aspiration of stone debris during surgery, avoiding unnecessary secondary treatment.

In addition, this technology can significantly reduce complications and ensure surgical safety. The negative pressure suction device can maintain stable intrapelvic pressure, reducing the risk of urosepsis in patients with infected stones. At the same time, it can reduce intraoperative bleeding and ureteral injury, further improving the safety and efficiency of the surgery.

The successful clinical application of the disposable ureteral (negative pressure) access sheath provides a safer, more efficient, and minimally invasive new treatment option for patients with urinary stone, promoting the field of urinary stone treatment to a new height of precise minimally invasive therapy.