Four-axis femtosecond laser micromachining system for medical stent

Abstract

The invention provides a medical stent four-axis femtosecond laser micromachining system which comprises a femtosecond laser light path system, a fine laser cutting head, a motion control system, a linear axis X, a linear axis Y, a linear axis Z and a precision rotating shaft. The motion control system is used for controlling the linear axis X, the linear axis Y, the linear axis Z and the rotating shaft to move; the linear shaft X is located on one side of the fine laser cutting head, the precision rotating shaft is fixed to a moving part of the linear shaft X, the linear shaft Y is arranged under the linear shaft Z, the lower end face of the linear shaft Z is connected with a moving part of the linear shaft Y, and the linear shaft Z is connected with the fine laser cutting head. According to the four-axis femtosecond laser micromachining system for the medical stent, precise control over the laser machining technology of the medical stent is achieved; and laser cutting, slotting and drilling machining of centripetal opening, vertical opening characteristics and composite opening characteristics of equal-diameter circular pipes, elliptical pipes and reducer pipes can be achieved.

Description

technical field [0001] The invention belongs to the technical field of precision cutting of numerically controlled machine tools, and particularly relates to a four-axis femtosecond laser micromachining system for a medical stent. Background technique [0002] The traditional three-axis femtosecond laser micromachining system for medical stents can only process equal-diameter round tubes because the laser cutting head can only move up and down during the processing, and cannot be linked with the linear axis X and the rotating axis during the processing. Laser cutting, grooving, and drilling processing with centripetal opening features; due to the high price of this type of equipment, it is relatively limited for users to purchase this type of equipment to process medical equipment, such as variable-diameter intracranial hypotubes, elliptical tubes, and degradable materials. Flat instruments, etc., cannot be clamped and processed on the same machine; cannot simultaneously sat...

AI Technical Summary

Problems solved by technology

[0002] Traditional three-axis femtosecond laser micromachining system for medical stents, because the laser cutting head can only move up and down during the processing process, it cannot be linked with the linear axis X and the rotation axis during the processing process, so it can only process equal-diameter round tubes, and only Laser cutting, slotting, and drilling of centripetal opening features; due to the high price of this type of equipment, users are limited in purchasing such equipment to process medical devices, such as variable-diameter intracranial hypotubes, elliptical tubes, and degradable materials. Planar instruments, etc., cannot be clamped and processed on the same machine; cannot simultaneously satisfy the processing of centripetal opening features, vertical opening features, and compound opening features (the same instrument has centripetal and vertical opening features at the same time); due to the existence of the above However, the three-axis laser micromachining system for traditional medical stents has low cost performance, limited processing capacity, and limited application fields, which have caused great obstacles to the market promotion of this type of equipment in the field of medical devices.

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