Pressure and flow restricting type ventilation/ attraction machine for detecting fiberoptic bronchoscopy

Abstract

The invention discloses a pressure and flow restricting type ventilation / attraction machine for detecting a fiberoptic bronchoscopy, comprising a four way pipe arranged on an enclosure, wherein the four way pipe is respectively communicated with an intake tube, a fiberoptic bronchoscopy attraction hole, a negative pressure source and outside atmosphere; and the four way pipe comprises a valve body and an inner core sealed and connected with the inner wall of the valve body, wherein the inner core is provided with a path, a driving device is connected outside the inner core, and the path can ventilate or attract the bronchoscopy via the driving device. The invention solves the problem of hyoxemia commonly happening in the fiberoptic bronchoscopy examination; the ventilation / attraction machine can be directly used for pressure support ventilation without pulling out the fiberoptic bronchoscopy so as to maintain the normal arterial partial pressure of oxygen of patients; meanwhile, the invention avoids barotraumas, improves the safety and the success rate for the fiberoptic bronchoscopy examination, expands the application range of the fiberoptic bronchoscopy and does not affect the original function of the fiberoptic bronchoscopy. The invention has simple structure, stable performance and high safety, and is convenient in use. The invention is suitable for any patient to do the fiberoptic bronchoscopy examination, especially patients with intensive care. The invention is especially used for neonate patients of respiratory failure.

Description

technical field [0001] The invention relates to a medical device, in particular to a pressure-flow limiting ventilation / suction machine for fiberoptic bronchoscopy. Background technique [0002] Fiberoptic bronchoscope is more and more widely used clinically and plays an increasingly important role in clinical diagnosis and treatment. With the improvement of the structure and function of fiberoptic bronchoscope and the in-depth study of The scope of application of bronchoscopy is more and more extensive. In foreign countries, fiberoptic bronchoscopy has been widely used in neonatal patients. In China, there are few reports on the clinical application of fiberoptic bronchoscopy in neonates. The main reason is that the incidence of complications of neonatal fiberoptic bronchoscopy is higher than that of adult patients. , is more dangerous. The main complication of fiberoptic bronchoscopy is hypoxemia. In critically ill and pediatric patients, especially neonatal patients, th...

AI Technical Summary

Problems solved by technology

The three-way tube of this structure is set in the shell, the three-way tube is not easy to install and disassemble, and the oxygen flow cannot be adjusted. There are certain technical defects that need further improvement

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