Air flow assisting handheld portable electrostatic spinning device and application thereof

Abstract

The invention relates to the technical field of electrostatic spinning, in particular to an air flow assisting handheld portable electrostatic spinning device and application thereof. The electrostatic spinning device comprises an insulating shell, a large-capacity secondary battery, a charging slot, a high-voltage wire, a high-voltage static electricity generating unit, a high-voltage static electricity generating switch, an air flow guide pipe connector, an air flow guide pipe, an injector fixing support, a disposable injector, a needle fixing support, a stainless steel needle and an air flow oriented cover. The large-capacity secondary battery is adopted as the power supply, and high-voltage static electricity is generated through the high-voltage static electricity generating unit; theelectrostatic spinning device is externally connected with an air flow generator through the air flow guide pipe connector, the stainless steel needle and the air flow guide pipe are fixedly locatedon the same axis, and electrostatic spinning is conducted with the aid of air flow. The electrostatic spinning device is high in integration degree, convenient to carry and capable of being held by one hand, and the orientation, uniformity and high-efficiency deposition of electrostatic spinning fibers are realized with the aid of air flow.

Description

technical field [0001] The invention relates to an electrostatic spinning device and its application, in particular to a hand-held and portable electrostatic spinning device assisted by an air flow. Background technique [0002] Electrospinning technology is one of the methods for preparing micro-nano fibers and fiber membranes. Its principle is to use a high-voltage electric field to make the polymer solution form a charged jet and eject it from the nozzle. The jet will split and stretch when it flies to the substrate. At the same time, the solvent evaporates, dries, and solidifies, and finally falls to the substrate to form micro-nano fibers. Electrospinning technology has simple process, low cost and high efficiency. Micro-nano fibers and fiber membranes prepared by this technology have the characteristics of high specific surface area, large length / diameter ratio, and high porosity. Therefore, electrospinning technology has shown great application potential in the field...

AI Technical Summary

Problems solved by technology

However, the spinning process of this equipment needs to be carried out in a relatively closed environment, and its use and product size and shape will be limited by the equipment

The Chinese patent "An Electrospinning Device" (CN104695031A) discloses a classic spinning device with a compact structure, a high degree of integration, and an adjustable voltage flow rate. The device consists of a drive unit, a propulsion unit, an electrospinning unit and The heat dissipation unit is composed of a miniaturized adjustable high-voltage electrostatic generator module to replace the traditional high-voltage power supply, and it is modularly integrated with other functional units to design and integrate it; however, the device is also equipped with a heat dissipation module and a control module, which increases the The size and weight of the device are not convenient for handheld use

When electrospinning technology is applied in the medical field, this problem will lead to inaccurate coating and loss of drugs

The Chinese patent "A Airflow-guided Directional In-Situ Thermostatic Electrostatic Spraying Device and Its Application" (CN104225738A) discloses an airflow-guided directional in-situ thermolytic electrostatic spraying device. Liquid and medical biomaterials are directly sprayed at the target point, orientation, and in situ, but the device has a low structural integration and a large volume, which is not conducive to portable use

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