Sternum transfusion needle

Abstract

The invention discloses a sternum transfusion needle. The sternum transfusion needle comprises a percussion assembly and a base assembly, wherein the percussion assembly comprises a sleeve, a percussion shaft, an energy storage mechanism and a trigger mechanism, one end of the percussion shaft penetrates through a closed end of the sleeve to stretch into an inner cavity of the sleeve, the energy storage mechanism is arranged between the percussion shaft and the sleeve, the trigger mechanism comprises a percussion catch and a trigger disc, the percussion catch is telescopically arranged on oneof the sleeve and the percussion shaft through a reset part and can extend to lock the percussion shaft under the action of the reset part to enable the energy storage mechanism to be in an energy storage state, and the trigger disc is in sliding fit with the sleeve and can retract the percussion catch to release the percussion shaft; and the base assembly comprises a base body, a main needle andan auxiliary needle assembly, the base body is in sliding fit with an opening end of the sleeve, the tip of the main needle is in sliding fit with the base body, the tail end of the main needle is matched with one end, extending to the inner cavity of the sleeve, of the percussion shaft, and the auxiliary needle assembly is arranged on the base body in a sliding manner and can be in contact fit with the trigger disc.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a sternal infusion needle. Background technique [0002] Intraosseous infusion is an advanced first aid measure. When venipuncture cannot be established, intraosseous puncture can quickly establish an intraosseous infusion channel and improve the rescue rate of emergency personnel at the emergency scene. The sternal infusion needles on the market require the operator to manipulate the firing shaft to apply force to puncture the sternum. The puncture force must reach more than 100kg, which requires high force from the operator. It is especially difficult to use when dealing with large-scale group injuries, and the existing The firing device of the sternal infusion needle is disposable, and the use cost is relatively high. Contents of the invention [0003] In view of this, the object of the present invention is to provide a sternal infusion needle, which can reduce the ...

AI Technical Summary

Problems solved by technology

The sternal infusion needles on the market require the operator to manipulate the firing shaft to apply force to puncture the sternum. The puncture force must reach more than 100kg, which requires high force from the operator. It is especially difficult to use when dealing with large-scale group injuries, and the existing The firing device of the sternal infusion needle is disposable, and the cost of use is relatively high

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