Airflow guiding type orientation in-situ flash melting electrostatic spraying device and application thereof

Abstract

An airflow guiding type orientation in-situ flash melting electrostatic spraying device comprises a control box, a liquid container, a temperature control system, a pressurization system, an electric stirring system, a liquid inlet pipe, a spray gun handle, a spray head, an airflow guiding pipe and a high-voltage wire, wherein the spray head is arranged at the front end of the spray gun handle, a metal needle connected with the liquid inlet pipe is arranged in the spray head, the high-voltage wire is connected to the pipe wall of the metal needle, an air channel formed between the outer wall of the metal needle and the inner wall of the spray head is communicated with the airflow guiding pipe through the spray gun handle, materials to be sprayed and solvent are added into the liquid container and form a constant-temperature solution under the action of the electric stirring system and the temperature control system, the solution is squeezed into the liquid inlet pipe through the pressurization system and enters the metal needle through the liquid inlet pipe, the voltage and current are controlled through the control box, and then airflow guiding type orientation in-situ electrostatic spraying is achieved. The device can be widely applied to the fields of medical hemostasis, war wound help, tissue engineering, cosmetics and industrial spraying.

Description

technical field [0001] The present invention relates to the technical field of medical equipment, in particular to an airflow-guided directional in-situ electrostatic spraying device that utilizes electrospinning technology combined with airflow guidance to realize fixed-point, directional, and in-situ precise spraying of liquid medicine and medical biological materials directly at the target. . Background technique [0002] Electrostatic spraying is a method of making the solution to be sprayed with a large amount of electrostatic charge move directionally under the action of a high-voltage electrostatic electric field force to form a charged jet, thereby realizing the method of coating the solution on the surface of the target object. Electrostatic spraying mainly has two forms: electrostatic spraying and electrostatic spinning. Among them, electrostatic spraying is mainly used for atomizing non-filamentous liquids such as water or aqueous solution or paint, and is mainly...

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Problems solved by technology

[0006] The object of the present invention is to provide an air-guided directional in-situ hot-melt electrostatic spraying device, which uses medical solvents such as water, ethanol or acetone to heat-melt the sprayed materials and complete the electrostatic spraying, which overcomes the disadvantages of the existing electrostatic spraying technology in the medical field. Disadvantages of application, to achieve fixed-point, directional, and in-situ precise spraying of soluble drugs and medical biomaterials directly on the target of human wounds

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