Epidural puncture needle with negative pressure inner needle core

Abstract

The invention discloses an epidural puncture needle with a negative pressure inner needle core. The needle comprises a guide pipe, a guide pore channel is formed in the guide pipe in the axial direction of the guide pipe, and a main puncture needle body is movably installed on the guide pipe through the guide pore channel; guide rings are fixedly arranged at the two sides of one end of the guide pipe, a needle handle is arranged at one end of the main puncture needle body, and guide rods are fixedly and symmetrically connected to the two sides of the needle handle; the two guide rods are arranged in the length direction of the guide pipe, the ends, away from the needle handle, of the two guide rods penetrate through the two guide rings, first rotation mechanisms are symmetrically arrangedon the outer walls of the two sides of the guide pipe, and retractable supporting rods are rotatably connected to the two first rotation mechanisms. The epidural puncture needle is novel in design andconvenient to use, the stability of the puncture needle can be kept during operation of the puncture needle, the efficiency and safety of puncture are improved, the whole needle can be rotated and folded, the size can be reduced, and the needle is convenient to carry and store and suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of puncture needles, in particular to an epidural puncture needle with a negative pressure inner needle core. Background technique [0002] Epidural anesthesia refers to epidural space block anesthesia, that is, local anesthetics are injected into the epidural space to block the spinal nerve root and temporarily paralyze the innervated area, which is called epidural space block anesthesia, or dura mater for short external block. According to the way of administration, it can be divided into single method and continuous method. According to the puncture site, it can be divided into high, middle, low and caudal block. About 50% of patients need epidural anesthesia, the tool used in epidural anesthesia is epidural puncture needle, the pros and cons of epidural puncture needle have a great influence on anesthesia puncture technique So far, there are many inventions and improvements about anesthesia puncture n...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the traditional epidural anesthesia puncture needle lacks a fixed guide mechanism in the prior art, so that during the puncture process, the puncture needle shakes and shifts in the patient's body due to the shaking of the hand of the medical staff, causing the puncture needle to easily Puncture other tissues and nerves, resulting in the shortcomings of other diseases of the patient, and proposed an epidural puncture needle with a negative pressure inner needle core

Images