The invention relates to the technical field of
medical instruments, and particularly discloses a
catheter structure, an external chest
compression system and a pressure regulation and control method. The
catheter structure comprises a
catheter body, a positioning bag body, at least two esophageal bag bodies, a pressure adjusting
assembly, a
pressure monitoring assembly and a controller, the positioning bag body is connected to the far end of the catheter body, and the esophageal bag bodies are sequentially arranged in the direction of the side, close to the near end, of the positioning bag body; the pressure adjusting
assembly is communicated with the positioning bag body and each esophageal bag body through each independent pipeline; the
pressure monitoring assembly is used for collecting real-
time pressure data in each esophageal
capsule; the controller is used for controlling the pressure adjusting assembly to adjust the pressure in each esophageal
capsule in combination with a compression
signal fed back by external chest compression equipment and
pressure data collected by the
pressure monitoring assembly. The esophageal
capsule bodies are arranged in a sectional mode, the pressure in the esophageal capsule bodies can be flexibly controlled according to the external chest compression
rhythm, the
extrusion effect of the back wall of the heart is improved, and then the external chest compression effect and efficiency are improved.