Dual-channel acoustic-guided epidural puncture needle

Abstract

A dual-channel acoustic-guided epidural puncture needle is composed of a pressure-taking device, an epidural puncture needle tube, a spinal needle assembly, a needle seat, and a syringe pump connector. An anesthetic catheter channel is arranged inside a needle wall of the epidural puncture needle tube, the end of the anesthetic catheter channel is provided with a bend needle end, the top of the needle wall is provided with a spinal needle tube channel, the needle seat has a double-channel structure, a spinal needle inlet and an anesthetic catheter inlet at one end of the needle seat respectively communicate with the spinal needle tube channel and the anesthetic catheter channel of the epidural puncture needle tube, the spinal needle assembly is composed of a spinal needle, a positioning sleeve and a needle handle, the spinal needle comprises a spinal needle tube wall and a spinal needle tube cavity, and a connecting tube at an outlet end of the pressure-taking device is connected to the needle seat through a connecting pipe connector. According to the puncture needle, a double-channel entry structure of the anesthetic catheter and the spinal needle is adopted, the operation mode of combined spinal-epidural anesthesia is changed, and the success of the puncture and anesthesia is guaranteed; and the structure of the spinal needle with the positioning sleeve and the structure of the epidural needle tube with a back hole are provided so that a guarantee is provided for correct implementation of spinal anesthesia.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a dual-channel sound wave-guided epidural puncture needle. Background technique [0002] Spinal anesthesia is widely used clinically, and is often used for intraoperative and postoperative analgesia in limbs, abdomen or thoracic surgery. Pain, etc., and sometimes used in emergency trauma patients. Another well-known use is the application in painless childbirth, providing appropriate analgesic effect without affecting the consciousness of pregnant women. [0003] Spinal anesthesia generally includes: one is epidural anesthesia, and the other is subarachnoid anesthesia (also known as spinal anesthesia generally). Both belong to spinal anesthesia, but the route of administration and the site of drug action are different. In terms of anesthesia effect, the latter has a fast onset and definite effect, but it is rarely administered continuously and is not suitable for long-...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that once there is an obstacle in front of the spinal anesthesia needle or the needle body of the spinal anesthesia needle bends irregularly, the spinal anesthesia needle will break away from the shallow groove and point to an uncertain direction, resulting in puncture failure

Images