Tubular fiber-based artificial blood vessel coating/grafting device and using method thereof

Abstract

The invention provides a tubular fiber-based artificial blood vessel coating / grafting device which comprises a fixing platform. A large roller is arranged to the fixing platform, pressure adjusters are arranged on the upper portions of the two ends of the large roller, a pressurizing roller is arranged on each pressure adjustor, a micro injection module is arranged on the side face of the pressurizing roller and is arranged on the fixing platform, a transmission motor is connected with the large roller, and a motor adjustor is connected with a linear motor, the micro injection module and the transmission motor. The invention further provides a using method of the tubular fiber-based artificial blood vessel coating / grafting device, the pressurizing roller is sleeved with an artificial blood vessel, the pressure adjusters are adjusted, the motor adjustor is controlled, the operation speed of the linear motor, a stepping motor and the transmission motor is adjusted, and the coating / grafting work is conducted. The tubular fiber-based artificial blood vessel coating / grafting device can completely achieve mechanical operation, overcome the defects that coating is uneven because of manual factors, achieve efficient utilization of raw materials, save cost, and coat coating materials or grafting materials of different thicknesses to the artificial blood vessel according to needs.

Description

technical field [0001] The invention relates to a tubular fiber-based artificial blood vessel coating / grafting device and a using method, belonging to the technical field of textile biomedical materials. Background technique [0002] At present, the clinical application of artificial blood vessels is a relatively mature surgical technique with many types of products. The coated artificial blood vessels developed in the early stage mainly prevent blood leakage after the artificial blood vessels are implanted in the body. The recent drug-loaded artificial blood vessels use a layer of drugs grafted on the surface of artificial blood vessels to achieve functions such as antithrombotic and endothelialization. The realization of these functions is inseparable from coating technology. [0003] At present, the existing domestic patents on artificial blood vessel coatings are as follows: [0004] (1) Patent: artificial vascular silk fibroin, collagen blended pre-coagulated coating ...

AI Technical Summary

Problems solved by technology

This process adopts ordinary coating methods such as dipping and brushing, and has the following three disadvantages: (1) the coating process is done manually, with poor reproducibility and low efficiency; (2) artificial The influence factors are large, the uniformity of the coating is difficult to control, and the thickness of the coating cannot be adjusted; (3) The coating material has no external pressure, and it is difficult to penetrate into the gap and inner layer of the artificial blood vessel wall

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