Negative pressure suction injector

Abstract

The invention discloses a negative pressure suction syringe, and relates to the technical field of medical instruments. The negative pressure suction syringe comprises a syringe barrel; a plunger is arranged in the syringe barrel; the lower side of the plunger is fixedly connected with a rubber plug; the rubber plug is slidably connected with the syringe barrel; a sealing plug is arranged at the upper end of the syringe barrel; the sealing plug is fixedly connected with the syringe barrel; a glass tube is arranged on the sealing plug; the glass tube is fixedly connected with the sealing plug;the plunger is slidably connected with the glass tube; the upper end of the glass tube is fixedly connected with an air pipe; the air pipe is fixedly connected with an air pump; an air hole is formedin the lower end of the plunger. An inner cavity of the syringe, the rubber plug arranged in the syringe and the sealing plug arranged at the upper end of the syringe jointly form a closed space, theair pump is started to work to exhaust air in the closed space, and an automatic suction function is achieved, so that working efficiency is improved, meanwhile, manual operation and automatic operation can be switched for use, operation is convenient, and applicability is wide.

Description

Technical field [0001] The invention belongs to the technical field of medical appliances, and specifically relates to a negative pressure suction syringe. Background technique [0002] Syringe is a common medical device. As early as the 15th century, Italian Catinel proposed the principle of syringe. It mainly uses needles to draw or inject gas or liquid. Syringes can also be used in medical equipment, containers, such as some chromatography. The scientific instruments in China are injected through the rubber diaphragm. Syringes are often used in daily medical treatment. They are usually used to inject drugs, mix syrups, and test blood for patients. [0003] In the infusion room or intravenous dispensing center, the dispensing nurse needs to prepare multiple bottles of medicine through the syringe every day. The existing syringe requires the nurse to hold the syringe and the medicine bottle with both hands to draw the medicine. Due to the high frequency of work, it is easy to caus...

AI Technical Summary

Problems solved by technology

[0003] In the infusion room or static dispensing center, the dosing nurse needs to prepare multiple bottles of liquid medicine through the syringe every day. The existing syringe requires the nurse to hold the syringe and the medicine bottle with both hands to extract the liquid medicine. Due to the high frequency of work, it is easy to cause muscle strain and Injured and swollen fingers seriously affect the efficiency of potion dispensing, therefore, we propose a negative pressure suction syringe

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