Digestive tract stent of soft section and hard section structure
A digestive tract and hard segment technology, applied in the field of medical stents, can solve problems such as large end support force, large force on the digestive tract, and difficulty in recovery and removal, and achieve the effects of reducing displacement, reducing restenosis, and speeding up recovery.
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[0009] A digestive tract stent with soft and hard segment structures, such as figure 1 As shown, it includes a tubular stent body 1 and two ends 2, the wall of the stent body 1 and the walls of the two ends 2 are mesh belts, braided by memory alloy wire, and the two ends of the stent body 1 are respectively connected One end 2, the bracket body 1 is alternately connected by several soft support units 3 and rigid support units 4, the end 2 is composed of soft support units 3 and rigid support units 4, and the outermost end of the end 2 is a soft Support unit 3. The soft support unit 3 of the present invention can reduce the support force at the end, and the rigid support unit 4 corresponds to the stenosis or obstructive lesion that needs expansion treatment, so it has a larger support force and a good support effect, and can reduce restenosis at the same time. In addition, the structure of alternating connection of soft and hard segments can improve the compliance of the stent...
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