Lumbar anesthesia pressure assistor

Abstract

The invention relates to the field of medical instruments, and in particular to a lumbar anesthesia pressure assistor. The lumbar anesthesia pressure assistor comprises a pressure controller; the pressure controller comprises a closed pipe; a catheter engagement end with a screw is arranged at the front end of the closed pipe; a through hole is formed in the tail end of the closed pipe; a push rod is arranged in the through hole; matched screw threads are arranged at the outer circumference of the push rod and the inner circumference of the through hole; a gasket and a snap spring are further arranged in sequence on the push rod; a piston is arranged at the front end of the push rod; a sealing ring is arranged in the periphery of the piston. The assistor comprises two chambers which are different in diameter, connected and communicated with each other; an opening is formed in the front end of the front chamber; a slot is formed in the opening; the catheter engagement end with a screw is arranged at the tail end of the rear chamber; assisting rods are arranged in the chambers; the outer diameter of the assisting rods is smaller than the inner diameter; each assisting rod is provided with scrapers at both front and rear ends. By the interconnected pressure controller and assistor, the lumbar anesthesia pressure assistor disclosed by the invention realizes effective control on pressure of injection speed so as to further realize the aim of constant injection speed, thereby preventing differences of individual habits of different anesthetists.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a device for assisting injection of spinal anesthesia during clinical anesthesia. Background technique [0002] Clinically, subarachnoid anesthesia, that is, spinal anesthesia, is widely used in clinical abdominal surgery and lower limb surgery anesthesia, with ideal results, such as cesarean section surgery, appendicitis surgery and so on. This technique is a necessary anesthesia technique in the anesthesiology department, and relevant medical personnel must master it. [0003] Clinically, subarachnoid anesthesia puncture must pass through the skin, supraspinous ligament, interspinous ligament, ligamentum flavum, epidural space, dura mater, subdural space, and arachnoid, and then reach the subarachnoid space. The subarachnoid space contains tissues such as the spinal cord, nerve roots, and cerebrospinal fluid. During clinical anesthesia, the anesthesiologist will inject anesthet...

AI Technical Summary

Problems solved by technology

[0015] For factor 3 injection speed, it is difficult to control because each anesthesiologist has different injection habits

[0016] Traditional boosters are all electronic devices, which have the advantage of being able to achieve uniform speed, but also have the following disadvantages: 1. The equipment is expensive; 2. The current electronic devices are basically for 10-50ml syringes, and the infusion speed is limited. Small syringes cannot be placed or identified, and the fastest bolus injection speed may not necessarily meet the actual clinical needs, and it is even more impossible to adjust the speed according to the habits of each doctor; 3. The target dose of infusion cannot be set

4. Due to the problem of sterility, more than two people are required to operate, which is not convenient enough

Images