Dummy syringe for teaching

Abstract

The invention provides a simulated syringe for teaching, which comprises an outer sleeve and a core arranged in the outer sleeve and dynamically fitted with the outer sleeve. The simulated syringe for teaching has the characteristics that the front cone hole of the outer sleeve or a syringe needle is closed, and the core is a cylindrical cavity; the cylindrical cavity is provided with a floating piston which is dynamically fitted with the cylindrical cavity, an overflow hole which is communicated with the cylindrical cavity is arranged at the front end of the core, and an air hole which is communicated with the cylindrical cavity (the cavity for short) is arranged at the rear end of the core. Simulation of inhaling medicinal liquid to the syringe and discharging the medicinal liquid for giving an injection is performed by pulling and pushing the core rod and the core rod baffle of the core. Then, the simulated medicinal liquid enters the outer sleeve and is discharged out of the outer sleeve to form a vivid process of medicinal liquid inhaling and injection. The closed cone hole and the syringe needle can effectively avoid short circuit caused by touching a sensor. Moreover, the real sense of medical scenes can be generated, and learning interest and learning efficiency can be improved.

Description

technical field [0001] The invention relates to a simulated syringe for teaching, in particular, the injection liquid of the syringe does not come in and out through the injection hole, and ensures that the injection liquid is discharged from the outer sleeve and injected into the simulated syringe along with the movement of the plunger. Background technique [0002] For a long time, in the process of medical teaching, students have to make judgments on the position and depth of the model to practice, so as to avoid damage to blood vessels or nerves by wrong parts and depths. In order to achieve the simulation level, intramuscular injections, local anesthesia, etc. Various sensors, conductive cloth and other equipment will be placed in the model used in the teaching operation process for right and wrong judgment to achieve the teaching purpose and increase the sense of reality. Because there is a circuit in the model, there should be no liquid, so as not to cause a short cir...

AI Technical Summary

Problems solved by technology

[0003] The invention can provide a teaching simulation syringe with reasonable structure and realistic form, which can not only produce a sense of reality in the medical field, improve learning interest and efficiency, but also avoid potential safety hazards such as short circuit easily caused when the injected liquid contacts the sensor or internal circuit , effectively address these deficiencies

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