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Wellead ClearPetra: Revolutionizing Urinary Stone Treatment

Wellead, a leading medical device company in China that specializes in endourology products, launching their latest innovation ClearPetra system that uses negative pressure aspiration to remove stone fragments and debris from the urinary tract during ureteroscopy. The ClearPetra System for Continuous Flow Lithotripsy of Well Lead Medical is designed for the effective and efficient treatment of urinary stones using negative pressure aspiration through an oblique side port on the ClearPetra sheath. ClearPetra is designed to improve the efficiency and safety of ureteroscopy and to reduce the risk of complications such as infection, bleeding, and ureteral injury. Here are some features and benefits of ClearPetra that make it a new generation of ureteral access sheath.

The Innovative Technology Behind ClearPetra

ClearPetra is a groundbreaking system developed by Wellead Medical that has revolutionized the treatment of urinary stones. This innovative technology utilizes Negative Pressure Aspiration through an oblique side port on the ClearPetra sheath to provide effective and efficient stone removal. Let’s delve into how ClearPetra works and why it has become a game-changer in urinary stone treatment.

Negative Pressure Aspiration is a key component of the ClearPetra system. By creating a vortex through continuous irrigation and suction, ClearPetra reduces intra-luminal pressure within the urinary tract. This not only lowers the risk associated with surgery but also prevents stone retropulsion – the backward movement of stone fragments during lithotripsy. With ClearPetra, stone fragments are removed promptly, improving the efficiency and effectiveness of the procedure.

Benefits of ClearPetra

ClearPetra offers a wide range of benefits for both patients and surgeons involved in urinary stone treatment. Let’s explore how this advanced technology can positively impact their experience.

For patients, ClearPetra ensures a high stone clearance rate, reducing the need for multiple procedures. The system aggregates stone fragments at the distal end of the ClearPetra sheath, which are then easily removed through continuous suction via the oblique side port. This streamlined approach saves operating time and minimizes patient discomfort.

Surgeons also benefit from using ClearPetra. The continuous irrigation and suction provided by the system significantly improve the visual field during the procedure. Bleeding and dust storms caused by stone pulverization are minimized, offering surgeons a clear view of the surgical site. Additionally, ClearPetra eliminates the need for accessory devices like stone baskets, forceps, or anti-retropulsion devices, simplifying the procedure and reducing reliance on additional tools.


In conclusion, ClearPetra’s innovative technology has transformed urinary stone treatment. With its Negative Pressure Aspiration system, the high stone clearance rate, reduced intra-luminal pressure, prevention of stone retropulsion, improved visual field, and simplified procedure make it a remarkable advancement in the field of urology.

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