English 
Bronchoscopy plays a very important role in the diagnosis and treatment of respiratory diseases. It is a tool for direct visual inspection of the larynx and airways using an imaging tube (bronchoscope). The end of the bronchoscope is equipped with a camera, allowing doctors to observe the lungs through the larger airways (bronchi), conduct relevant examinations and treatments based on lesions, and collect tissue samples from the lungs or airways using small tools to help diagnose and treat certain lung diseases.
A portable bronchoscope plays a crucial role in critical emergency rescue, especially in situations that involve difficult emergency tracheal intubation, bronchial foreign bodies, and massive hemoptysis. Such emergency situations requiring urgent airway management heighten the need for mobility and ease of operation of the bronchoscope. The portable bronchoscope uses a portable power source, eliminating the need for a light guide, cold light source, and monitor, thus making it convenient to carry; the body of the scope is relatively thin while the working diameter is relatively large, making it especially suitable for emergency rescue. Additionally, the use of a portable bronchoscope in in-hospital respiratory consultations has shown excellent clinical results.
Application of Portable Bronchoscopy in Difficult Intubation and Adjusting Tracheal Intubation
Patients with severe traumatic brain injuries, severe maxillofacial injuries leading to difficulty in opening the mouth, and cervical spine injuries who develop respiratory failure and cannot tolerate orotracheal intubation guided by a laryngoscope should prioritize early nasotracheal intubation guided by a portable bronchoscope to open the airway, increasing the chances of successful rescue.
Application of Portable Bronchoscopy in Airway Management and Treatment of Atelectasis
Elderly, weak patients with multiple comorbidities and those with chronic obstructive pulmonary disease (COPD) may experience significant airway secretions following a lung infection, and often lack the ability to expel phlegm effectively, leading to poor drainage of secretions. This can severely obstruct the airways, causing atelectasis and even respiratory failure. In such cases, conventional back pats and airway humidification prove insufficient. A bronchoscope can enter the lower respiratory tract, and a portable bronchoscope can generally reach the subsegmental bronchial openings to suction the phlegm, remove mucus plugs, and even provide local saline or medication lavage treatment. Along with back patting, this can achieve lung re-expansion.
Application of Portable Bronchoscopy in the Etiological Diagnosis and Treatment of Severe Pulmonary Infections
For some patients in the emergency intensive care unit with severe pulmonary infections and ventilator-associated pneumonia, including those with immunodeficiency-related lung infections, empirical anti-infection treatment may offer suboptimal effects, with low sputum culture positivity rates and poor specificity, complicating precise and timely anti-infection treatment. Bronchoscopic sterile aspiration of secretions, protected brush sampling, and bronchoalveolar lavage fluid for bacteriological culture are highly sensitive and specific, providing strong guidance for the clinical application of anti-infective agents.
Application of Portable Bronchoscopy in the Diagnosis and Treatment of Hemoptysis
Hemoptysis is a common acute respiratory emergency that, if not addressed in time, can lead to asphyxiation, shock, or even death. Due to the flexibility, wide viewing angle, and ability to reach up to the tertiary bronchi of the portable bronchoscope, and the ability to observe all fourth-degree bronchi, it is extremely effective in diagnosing the bleeding site and elucidating the cause of bleeding, especially in patients with negative chest imaging studies. Bronchoscopic direct visual examination accurately determines the bleeding site and status, facilitating targeted therapeutic measures.
