An automated assembly system for biodegradable stent development sites

Abstract

The invention discloses an automatic assembling system for a biodegradable stent developing point, and belongs to the field of automatic micro assembly of biological medical treatment apparatuses. Themicro assembling system comprises five parts, namely, a material tray, a stent fine adjusting mechanism, a three-axis electric translation platform, an actuating element and feedback system and a monocular vision system. The system comprises the following assembling processes: determining whether a stent hole is vertically upward through the vision system; circumferentially adjusting the positionof the stent through the support fine adjusting mechanism; positioning the stent hole and a noble metal developing point; adsorbing the developing point through a vacuum adsorbing head; arranging thedeveloping point on the stent hole, and determining whether the developing point is successfully arranged on the stent hole through the vision system; pressing and riveting the developing point intothe stent hole through a pressing rod; and observing the pressing and riveting effect through the vision system. The system has the characteristics of man-machine coordination and modular design; an applicable space is expanded for flexible automatic assembly. The assembly method has the characteristics of being high in efficiency, high in precision, and low in degree from freedom.

Description

technical field [0001] The invention relates to an automatic assembly system for developing points of biodegradable brackets, which belongs to the field of automatic assembly of biomedical devices. Background technique [0002] Since the emergence of stent intervention, interventional stent implantation technology can expand narrowed or occluded blood vessels or lumens, and has the characteristics of less trauma, high curative effect, and low risk. At this stage, biodegradable stents have been regarded as the fourth major change in interventional therapy, and it is a research direction that has attracted much attention. Based on the clinical application requirements of the stent, the shaping of the stent should ensure its good mechanical properties and biocompatibility. Different from traditional metal stents, the body material of biodegradable stents is high molecular polymer, and when implanted, it should have good positioning in the lesion, so in order to facilitate doct...

AI Technical Summary

Problems solved by technology

Due to the particularity of the precious metal development point and the material and structure of the biodegradable stent, the size of which is several hundred microns, it is necessary to ensure that the body of the biodegradable stent is not damaged during the assembly operation. In mass production, the efficiency of manual operation is difficult to guarantee.

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