Propelling device for nerve block

Abstract

The invention discloses a propelling device for nerve block. The propelling device comprises a shell, a servo motor fixedly connected with the shell and an injector embedded in the shell, and further comprises a fixing assembly, an extrusion assembly, a collection assembly and a pricking assembly, wherein the fixing assembly is used for keeping the stable position between the shell and the skin; the extrusion assembly is used for extruding a small amount of anesthetic in the injector; the collection assembly is used for collecting the extruded small amount of anesthetic; the pricking assembly is used for stably pricking the injector into the skin of a patient, the servo motor rotates to extrude the small amount of anesthetic in the injector, the anesthetic is collected by an absorption block, after extrusion is completed, the absorption block automatically contracts, then a needle is stably pricked into the body of the patient, and injection is completed under the action of a second movable block. The mode is stable, the whole process is completed in a full-automatic mode, and time and labor are saved.

Description

technical field [0001] The invention relates to the technical field of nerve block injection devices, in particular to a propulsion device for nerve block. Background technique [0002] Inject local anesthetics around nerve trunks, plexuses, and nodes to block their impulse conduction and anesthetize the innervated area, which is called nerve block. Nerve blocks require only one injection to obtain a larger area of ​​anesthesia. [0003] The needles used in anesthesia syringes are generally thinner. This type of needle will cause less discomfort after piercing the mucous membrane. The positioning of the injection must be accurate and the needle should be inserted slowly. Due to the normal manual injection process, it is prone to shaking, which makes it difficult to penetrate the patient's skin. The needle in the needle shakes, and it is easy to break the needle under the action of the muscle. Before the injection, the anesthetic in the syringe needs to be squeezed out a lit...

AI Technical Summary

Problems solved by technology

[0003] The needles used in anesthesia syringes are generally thinner. This kind of needles will cause less discomfort after piercing the mucous membrane. The positioning of the injection must be accurate and the needle should be inserted slowly. Due to the vibration during the conventional manual injection process, it is easy to puncture the skin of the patient. The needle in the needle shakes, and it is easy to break the needle under the action of the muscle. Before the injection, the anesthetic in the syringe needs to be squeezed out a little to avoid air remaining in the needle, so that the air can be injected into the patient with the anesthetic, causing swelling, etc. However, it is difficult for medical staff to accurately grasp the amount of extrusion, and excessive extrusion often occurs, which affects the anesthesia dose in the injected patient. Therefore, we propose a propulsion device for nerve block

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