Airflow-guide-type directional in-situ electrostatic spraying device

Abstract

The invention discloses an airflow-guide-type directional in-situ electrostatic spraying device which comprises a spray gun, an injector and a high-voltage electrostatic generator. The spray gun comprises a spray gun handle and a spray gun pipe, a hollow metal capillary pipe coaxial with a spray gun sprayer is arranged in the spray gun pipe and communicated with the injector through a liquid incoming pipe, an annular passage formed between the spray gun pipe and the metal capillary pipe is an airflow passage, communicated with the spray gun handle and communicated with an airflow guide pipe through the spray gun handle, and a pipe cavity of the metal capillary pipe is connected with the high-voltage electrostatic generator through a guide line. Airflow of the airflow passage plays a role in orientation and constraining, ring wrapping effect and faraday cage effect are weakened, a spraying area is limited within a very small range, orientation and fixed-point spraying, of a drug solution, in a specific area are realized, and the drug solution is almost free of splashing, thereby being high in utilization rate and having better treatment effect.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an air-guided directional in-situ electrostatic spraying device that utilizes electrostatic spraying technology combined with air-flow guidance to achieve fixed-point, directional, and in-situ precise spraying of liquid medicine directly on a target. Background technique [0002] Electrostatic spraying equipment is mainly composed of a spray gun, a liquid reservoir, and a high-voltage electrostatic generator. There is a strong electrostatic field force between the solution nozzle and the sprayed object. Under the action of the action, a jet flow to the target object is formed to realize the coating of the solution on the surface of the object. [0003] According to the different properties of the solution, electrostatic spraying mainly has two forms: electrostatic spraying and electrostatic spinning. Among them, electrostatic spraying is mainly used for atomizing non-f...

AI Technical Summary

Problems solved by technology

[0004] During the electrostatic spraying process, due to the divergent distribution of electric field lines and the mutual repulsion of atomized particles or electrospun fibers with a large amount of electrostatic charge, the atomized particles or fibers will produce a large spray area on the target object, and even run away. When the electrostatic spraying technology is used in the medical field, the ring effect will lead to inaccurate coating, and the liquid medicine will be applied to unnecessary areas, resulting in waste of medicine; when the wound surface is located In the deep cavity, most of the charged drugs will be adsorbed to the cavity surface closer to the nozzle, resulting in a Faraday cage effect, which cannot effectively coat the wound surface

Images