Calculus taking net basket

Abstract

The invention discloses a calculus taking net basket. The calculus taking net basket comprises a handle, a guide wire, a sheath tube and a net basket body. The guide wire penetrates through the sheath tube to be connected with the net basket body at one end of the sheath tube. The handle is arranged at the other end of the sheath tube. The net basket body is of a spiral structure formed by a single nickel-titanium memory alloy wire and is in a cone shape. Because the net basket body is designed to be spiral, calculi can be effectively intercepted when the end of the net basket body is retracted. Because the net basket body is of the spiral structure formed by the single nickel-titanium memory alloy wire, in the retracting process, the wire can be conveniently pushed to be straight and then retracted, and calculi wrapped in the net basket body are taken out; the wire can be released as well, and smooth retraction of the net basket body is not influenced.

Description

technical field [0001] The present invention relates to stone extraction baskets. Background technique [0002] At present, the stone extraction mesh baskets used clinically are generally spoon-shaped or olive-shaped. When the stones drift, it is easy to wrap the small particles of the stones and cause the mesh baskets to fail to be retracted smoothly. We designed this by designing the mesh basket into a spiral shape. The ends can be retracted to effectively block the stones. When retracting, due to the single wire-shaped spiral basket, the wire can be pushed straight and stowed, and the stones wrapped in the basket can be taken out, and can also be released without affecting the mesh. The basket was put away smoothly. Contents of the invention [0003] Aiming at the deficiencies of the above-mentioned prior art, the problem to be solved by the present invention is: the stone extraction mesh basket is generally spoon-shaped or olive-shaped, and when the stone drifts, it ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problem to be solved by the present invention is: the stone extraction mesh basket is generally spoon-shaped or olive-shaped, and when the stone drifts, it is easy to wrap the small stone particles, so that the mesh basket cannot be smoothly folded when it is folded up.

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