Far-end protective umbrella system
A protective umbrella and distal technology, applied in balloon-shaped catheters, catheters, etc., can solve problems such as deformation of the basket, affecting the recovery of the basket, affecting the interception effect of the basket, and achieving the effect of prolonging time, ensuring support, and increasing rigidity
Active Publication Date: 2021-04-30
BEIJING TAIJIE WEIYE TECH
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The invention relates to a far-end protective umbrella system. The far-end protective umbrella system comprises a conveying sheathing canal and a blood vessel far-end protector arranged in the conveying sheathing canal; the blood vessel far-end protector comprises a far-end spring, a far-end guide wire, a flexible corrugated pipe and a near-end guide wire which are connected in sequence, an anti-unwinding wire arranged in the length direction of the flexible corrugated pipe is arranged in the flexible corrugated pipe and fixed in the flexible corrugated pipe, and the hardness of the far-end guide wire is smaller than that of the near-end guide wire. A plurality of annular flexible unfolding elastic sheets are distributed on the outer wall of the flexible corrugated pipe; the flexible corrugated pipe is sleeved with a conical net basket with an opening in the bottom face, the conical end of the net basket is connected with the far-end guide wire, and any point on the circumference of the opening end of the net basket is connected with the near-end guide wire. The far-end protective umbrella system can solve the problems that in the prior art, thrombus with the too large size is gathered to the narrow position of the woven net basket, the mesh basket is prone to deformation, the interception effect of the net basket is affected, excessive large thrombus blocks are accumulated at the narrow position of the net basket, and recycling of the net basket is affected.
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Property | Measurement | Unit |
Diameter | 0.02 ~ 0.08 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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