Stone Retrieval Basket-4 Helical
Product Features
● The basket is formed from four wires that are twisted into a helical (spiral) configuration.This creates a complex, "corkscrew-like" structure that is very effective at ensnaring stones, especially those that are irregularly shaped.
● Unlike the headless design of many parallel baskets, the helical basket typically has a tapered tip where the wires converge.This tip aids in navigating past the stone and through the ureter, and the helical design itself can help "screw" the basket past an impacted stone.
● The basket is fully visible under fluoroscopy, allowing for precise positioning and deployment under X-ray guidance.
● Standard ergonomic handle with a sliding mechanism for single-handed control of basket deployment and closure.
Application scenarios
● Small and Irregularly Shaped Stones: The tight, complex weave is ideal for capturing jagged or spiculated stones that a parallel basket might not grip as effectively.
● Impacted Stones: The tapered tip and rotational engagement can sometimes help dislodge and then capture a stone that is tightly stuck in the ureter.
● Multiple Small Fragments: Excellent for retrieving numerous small pieces after laser lithotripsy, as the helical design acts like a net.
● Lower-Pole Renal Stones: The ability to engage a stone with a rotational maneuver can be very useful in the challenging anatomy of the lower pole of the kidney.
Instruction for use
● Access & Visualization: A ureteroscope is advanced to the stone.
● Deployment: The closed basket is passed through the working channel of the scope and deployed just beyond the stone.
● Engagement ("The Corkscrew Maneuver"): The surgeon gently rotates the basket, using the helical wires to "screw" the basket around the stone, effectively ensnaring it within the coils. Pulling the basket back while open can also draw the stone into the spiral.
● Capture & Retrieval: Once the stone is securely within the helix, the sheath is advanced to close the basket. The entire unit is then withdrawn.
Specifications and Models
| Product No | Model | Sheath Outedr Diameter (F) | Working Length (cm) | Basket Width in Opened Condition(mm) | Material |
| 433001 | TN-2.5Fx90cm(15mm) | 2.5F | 90cm | 15mm | PI |
| 433002 | TN-2.5Fx120cm(15mm) | 2.5F | 120cm | 15mm | PI |
Product Details