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Lung reduction device, system, and method

  • US 6,293,951 B1
  • Filed: 08/24/1999
  • Issued: 09/25/2001
  • Est. Priority Date: 08/24/1999
  • Status: Expired due to Term
First Claim
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1. A bronchial sub-branch obstruction device for reducing the size of a lung comprising an obstructing member dimensioned for insertion into a bronchial sub-branch communicating with a portion of the lung to be reduced in size, the obstructing member having an outer dimension which is so dimensioned as to make continuous contact with an inner dimension of the bronchial sub-branch to seal the bronchial sub-branch upon placement in the bronchial sub-branch, to preclude normal function of the lung portion, and to collapse the portion of the lung for reducing the size of the lung, wherein the obstructing member is a one-way valve to permit exhaled air to flow from the lung portion while precluding inhaled air from flowing into the lung portion.

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