Pressure-limiting syringe with pressure-regulating function and method of use thereof

Abstract

The invention discloses a pressure-limiting injector having a pressure regulating function and a using method thereof. The pressure-limiting injector comprises an injection barrel, an injection piston and a nipple located at the front end of the injection barrel, wherein the injection barrel and an injection piston are matched mutually, and a pressure regulator identical to the injection barrel in arrangement direction is arranged on the side wall of the injection barrel. The using method of the pressure-limiting injector comprises the steps of 1 pulling the injection piston from the 1 / 2 position of the length of the injection barrel to the tail portion of the injection barrel; 2 debugging the pressure regulator to be a set value; 3 connecting the nipple with a pressure sleeve bag air inflation head of a tracheal catheter; 4 propelling the injection piston till the injection piston abuts against the front end of the injection barrel. The pressure-limiting injector has the advantages of being convenient and quick to use, avoiding potential safety hazard caused by subjective factors and decreasing the potential safety hazard and can be widely applied to the field of medical treatment.

Description

Technical field [0001] The invention relates to a medical device, in particular to a pressure-limiting syringe with a pressure regulating function and a method of use thereof. Background technique [0002] At present, anesthesiologists generally use ordinary disposable syringes to inflate the pressure cuff of the tracheal tube after tracheal intubation. The amount and pressure of inflation are basically based on the subjective feeling of the anesthesiologist. Every anesthesiologist has a basic grasp of the pressure of the balloon. Relying on personal experience, lack of quantitative indicators. [0003] For the pressure range of the tracheal tube pressure cuff, two factors should be considered: 1. After the cuff is inflated, the anesthesia machine will not leak from the mechanical ventilation; second, try to make the tracheal tube pressure cuff to the tracheal mucosa when the first element is satisfied. The pressure is minimal to prevent ischemia and necrosis. [0004] At present, ...

AI Technical Summary

Problems solved by technology

[0004] At present, the use of ordinary disposable syringes to inflate the pressure cuff of the endotracheal catheter has the following disadvantages: when inflating the pressure cuff of the endotracheal catheter, the anesthetist needs to constantly feel the pressure of the cuff with his fingers, and repeat the operation of inflating and deflated continuously, which is time-consuming Laborious; personal experience varies greatly, which may block the blood supply of the tracheal mucosa, resulting in serious consequences such as ischemia and necrosis; due to the tight time and heavy tasks in the anesthesia process, using ordinary disposable syringes is time-consuming and laborious, which is likely to cause safety hazards

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