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Acid pickling device and acid pickling method for CoCr alloy intravascular stent

A vascular stent and pickling device technology, applied in chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of insignificant effect, complicated procedures, low efficiency, etc., and achieve good pickling effect, simple operation, and avoid the environment. The effect of pollution

Pending Publication Date: 2020-09-04
INNER MONGOLIA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The pickling method for vascular stents disclosed in the above-mentioned patents has improved the pickling step in the process of making stents and improved the pickling effect, but it has not fundamentally solved the low efficiency, low Problems such as complicated procedures and ineffective effects

Method used

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  • Acid pickling device and acid pickling method for CoCr alloy intravascular stent
  • Acid pickling device and acid pickling method for CoCr alloy intravascular stent
  • Acid pickling device and acid pickling method for CoCr alloy intravascular stent

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0033] Such as figure 1 As shown, a pickling device for a CoCr alloy vascular stent, a pickling device for a CoCr alloy vascular stent, its main structure includes: an integrated console, a control circuit 1, a pickling solution mixing pool 7, a pure water pool 9, a waste Liquid collection tank 10, pickling station 17;

[0034] A pickling cylinder and a pure water detergent cylinder 6 are arranged on the pickling table 17;

[0035] The pickling drums include three levels of pickling drums, which are respectively the primary pickling drum 3, the secondary pickling drum 15 and the tertiary pickling drum 11. The pickling drums of the three levels have the same structure; The upper parts of the pickling cylinders of each level are connected to the pickling solution mixing tank 7 through the liquid inlet channel, the liquid inlet valve, and the wate...

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Abstract

The invention provides an acid pickling device and an acid pickling method for a CoCr alloy intravascular stent. An acid pickling table is provided with an acid pickling cylinder and a purified waterlotion cylinder, wherein the acid pickling cylinder comprises three levels of acid pickling cylinder bodies, and the upper portions of the three levels of acid pickling cylinder bodies are all connected with an acid pickling solution blending pool; the purified water lotion cylinder is connected with a purified water pool; the purified water pool is connected with the acid pickling solution blending pool; the purified water lotion cylinder and the acid pickling cylinder are the same in structure and are cylinders composed of ceramic inner cylinder walls and stainless steel outer cylinder walls, cylinder covers are arranged at the tops of the cylinders, and overflow holes are formed in the side walls of the cylinders; ultrasonic transducers and temperature controllers are arranged in interlayers of the ceramic inner cylinder walls and the stainless steel outer cylinder walls; the bottoms of the cylinders are connected with a waste liquid collecting pool; the purified water lotion cylinder and the acid pickling cylinder are distributed around a full-automatic manipulator; and a comprehensive control table is connected with the full-automatic manipulator, the ultrasonic transducers, all water pumps, the temperature controllers, all liquid inlet valves and all liquid outlet valves. The acid pickling device is compact, full-automatic stent grabbing is achieved, and operation is convenient.

Description

technical field [0001] The invention belongs to the field of pickling of the surface of a vascular stent after forming, and relates to a pickling device and a pickling method for a CoCr alloy vascular stent. Background technique [0002] Interventional therapy is the main method for treating vascular occlusion diseases, and vascular stents, as a key component of interventional therapy, have gradually become the focus of research. CoCr alloy has good mechanical properties, has the characteristics of small specific gravity, light weight, stable chemical properties and strong corrosion resistance, and it is non-irritating to the body itself, so it can be used as a planting material. Therefore, CoCr alloy has gradually become a new material of choice for vascular stents. [0003] During the production and processing of CoCr alloy vascular stents, laser engraving of the tubes is required, which will generate a black oxide layer and molten debris on the surface, thereby affecting...

Claims

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Application Information

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IPC IPC(8): C23G3/00C23G1/10B08B7/02
CPCB08B7/028C23G1/10C23G3/00
Inventor 苏娟冯海全王天琪
Owner INNER MONGOLIA UNIV OF TECH
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