Endobronchial Closure for Peripheral Pulmonary Air Leakage

Area of Science:

• Medical Devices
• Pulmonology
• Minimally Invasive Surgery

Background:

• Pneumothorax, or collapsed lung, traditionally requires surgical intervention.
• Existing treatments carry risks and may not be suitable for all patients.
• A minimally invasive alternative is needed to improve patient outcomes and reduce complications.

Purpose of the Study:

• To evaluate the efficacy and safety of a novel super-thin catheter system for treating pneumothorax.
• To assess the potential of this device as a minimally invasive alternative to traditional surgery.
• To investigate the use of fibrin glue delivered via catheter for sealing air leaks in the lungs.

Main Methods:

• Experiments were conducted on ex vivo and in vivo pig lung models.
• Artificial fistulas were created to simulate pneumothorax.
• A super-thin, double-lumen catheter guided by bronchoscope was used to deliver fibrin glue to the air leak site.
• Efficacy was assessed through air leak tests and observation for recurrence in live animal models.

Main Results:

• A 90.5% cure rate was achieved in ex vivo pig lungs, with 19 out of 21 cases showing cessation of air leaks.
• No major adverse events were reported with the treatment device.
• Successful treatment of pneumothorax was observed in live pigs, with no recurrence up to seven days post-procedure.

Conclusions:

• The super-thin catheter system provides a minimally invasive and highly effective treatment for pneumothorax.
• The device demonstrates significant potential for clinical application in humans.
• Further development and clinical trials are warranted to establish this technique as a revolutionary treatment option.