Spraying drug administration apparatus

Abstract

The invention provides a spray drug delivery device, which includes a body with a hollow inner cavity, the inner cavity of the body is provided with a mixing chamber, a drug storage device, and a nozzle, the front end of the mixing chamber has a drug outlet, and the rear end of the mixing chamber is connected to the nozzle A drug storage device is communicated with the side wall of the mixing chamber; the drug storage device includes a drug suction tube and a drug container, one end of the drug suction tube communicates with the mixing chamber, and the other end extends into the drug container through the mouth of the drug container. A spray drug delivery device of the present invention utilizes the principle of a jet pump, uses medium and low-pressure gas as a carrier, sucks the drug into the mixing chamber and mixes the two fully, then carries it again and sprays it to the wound surface to achieve stable and uniform drug delivery. , dispersed; and can replace or add any form of medicine as needed, which is convenient for the operator and improves the effect of surgical hemostasis.

Description

Technical field [0001] The invention belongs to a drug delivery device in the field of medical equipment, and particularly relates to a spray drug delivery device. Background technique [0002] Endoscopy has been born for more than 50 years, and has gone through the stage from disease diagnosis to disease treatment. The treatment of some diseases has been very effective and reliable and has even become the first choice for the treatment of some diseases, such as polyps in the digestive tract, early cancer, varicose veins, and mucous membranes. Widely used in the treatment of lower tumors. The existing endoscopic surgical treatment to hemostasis is mainly carried out by clamping the wound with hemostatic clips or electrocoagulation, but it is still insufficient in terms of diffuse venous bleeding and prevention of infection. If hemostatic and anti-infection drugs can be sprayed directly on the bleeding site, It will help the wound heal and prevent infection. At present, there ar...

AI Technical Summary

Problems solved by technology

The existing endoscopic surgical treatment of hemostasis is mainly carried out by clamping the wound with hemostatic clips or electrocoagulation, but there are still deficiencies in diffuse venous bleeding and infection prevention and treatment. If the hemostatic and infection prevention drugs can be directly sprayed on the bleeding site, Will help wounds heal and prevent infection

At present, there are few methods of drug administration under endoscopy in China. Among them, domestic patent ZL200510094124.0 provides a "portable manual endoscopic powder drug spray gun", and domestic patent ZL200820018083.7 provides a "powder drug sprayer". "The principles of the two are basically the same. They both adopt the method of manual air bag extrusion to blow the drug powder that moves downward due to the gravity above to the wound. Uneven administration; and there are shortcomings such as small dosage and short administration distance

Images