Methods and devices for treating a hyper-inflated lung

Abstract

Methods and devices to improve lung function in a patient having restricted ventilation. The device may include an implantable airway bypass device that relieves trapped air. The method may include a treatment procedure that minimizes irritation of tissue to control healing processes. Systems, methods and devices have been conceived and are disclosed herein for improving the mechanics of a diseased lung of a patient by implanting one or more natural airway bypass ventilation devices in a lung. For example, the patient may suffer from COPD, emphysema, chronic bronchitis, or asthma. A natural airway bypass device may comprise a pressure relief device connecting lung parenchyma distal to abnormally high resistance airways to the atmosphere.

Description

[0001] related application [0002] This application claims U.S. Provisional Application Nos. 61 / 986,270, filed April 30, 2014, U.S. Provisional Application Nos. 62 / 088,881, filed December 8, 2014, and 62 / 108,040, filed January 26, 2015 priority of the US provisional applications, and the entire contents of each of these applications are hereby incorporated by reference. technical field [0003] none Background technique [0004] The present statement is generally directed to implantable medical devices that improve chest mechanics in a diseased patient by partially bypassing the natural gas passage. The methods and devices disclosed herein can be configured to create an alternative expiratory pathway for air trapped in an emphysematous lung by emptying the lung parenchyma, thereby separating the alveoli and / or other spaces from the trapped air and the external environment. connected. Improvements over the aforementioned devices may include less invasive treatment, avoid...

AI Technical Summary

Problems solved by technology

Destruction of the lung parenchyma results in the combined disadvantages of reduced mass of functional lung tissue, reduced gas exchange, and loss of elastic recoil, and thus inability to exhale equally or substantially completely the same amount as was inhaled in the previous breath air

However, previously attempted solutions have shown difficulties in maintaining device performance over time, caused by, for example, tissue ingrowth, by naturally occurring secretions such as mucus, or by pro-inflammatory intensification in COPD. Other secretions from the condition) blockage, heavy bleeding or body rejection of the implant

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