Air pressure adjustment mechanism, detection catheter and detection device for detecting body cavity pressure

Abstract

Embodiments of the present disclosure provide an air pressure adjustment mechanism, a detection catheter and a detection device for detecting body cavity pressure. The air pressure adjustment mechanism includes: a shell body with an opening at the top and a first air vent at the bottom; an air pressure adjustment member, at least a part of which is located in the shell body, and one end protrudes from the opening as a free end for adjusting the in and out The gas volume of the first air vent; wherein, the air-tightness between the air pressure regulator and the shell body; the first valve body has a gas passage arranged through; one end of the gas passage is the second The air vent communicates with the first air vent; the other end of the gas channel is a free end that can be sealed, and is used to connect the test host, and when detecting body cavity pressure, it can communicate with the second air vent and The test host. The above technical solution realizes a convenient and fast pressure test without performing separation-conduction operation, which improves the detection efficiency.

Description

Technical field [0001] The present disclosure relates to the technical field of medical devices, specifically related to a barometric pressure regulation mechanism for measuring body cavity pressure, a detection catheter and a detection device. Background [0002] With the large-scale outbreak of the global epidemic, for a large number of severe and critically ill patients with severe and critical illness of new crown pneumonia who have respiratory failure or even progress to acute respiratory distress syndrome (ARDS), the main treatment method is to use ventilators and other equipment to help patients maintain breathing, ensure the body's oxygen supply, and buy time for the recovery of the immune system and the implementation of other treatment methods. [0003] In mechanical ventilation in patients with respiratory failure / acute respiratory distress syndrome, how to achieve a balance of interests between reducing alveoli collapse and preventing excessive lung expansion remains ...

AI Technical Summary

Problems solved by technology

[0004] At present, when detecting the patient's gastric pressure or esophageal pressure in the prior art, medical personnel need to connect the syringe to the interface of the detection catheter, inject gas into the balloon through the syringe to detect gastric pressure or esophageal pressure, and determine the injection pressure according to the scale of the syringe. However, the method of using the syringe scale to determine the volume of injected gas is often quantitatively inaccurate; in addition, after the syringe injects gas into the airbag, the detection catheter needs to be separated from it, and then connected to the external instrument, so that Only external instruments can collect the air pressure signal of the air bag to detect the patient's gastric pressure or esophageal pressure

In the face of a large number of detections, repeated separation-conduction operations increase the load on medical staff, resulting in a decrease in detection efficiency

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