Lung reduction system

• US 7,252,086 B2
• Filed: 05/24/2004
• Issued: 08/07/2007
• Est. Priority Date: 06/03/2003
• Status: Expired due to Fees

• Current Assignee: Portaero, Inc
• Original Assignee: Cordis Corporation (Cardinal Health, Inc.)
• Inventors: Tanaka, Don
• Primary Examiner(s): MITCHELL, TEENA KAY
• Application Number:
  US10/852,271
• Publication Number:
  US 20040244802A1
• Time in Patent Office: 1,170 Days
• Field of Search: 128/200.26, 128/207.14, 128/207.15, 128/207.16, 128/898, 604/509, 604/516, 604/102.01, 604/102.02, 604/328, 606/46, 623/9
• US Class Current: 128/200.26
• CPC Class Codes: A61F 2002/043 Bronchi
• CPC Class Codes: A61M 16/04 Tracheal tubes catheters in general A61M25/00
• CPC Class Codes: A61M 16/0406 implanted flow modifiers
• CPC Class Codes: A61M 16/101 using an oxygen concentrator
• CPC Class Codes: A61M 16/106 in a path
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2202/03 Gases in liquid phase, e.g. cryogenic liquids
• CPC Class Codes: A61M 2205/0244 Micromachined materials, e.g. made from silicon wafers, microelectromechanical systems [MEMS] or comprising nanotechnology
• CPC Class Codes: A61M 2210/1039 Lungs
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A pulmonary decompression device may be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. A lung reduction device may passively decompress the lung or lungs. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal.

Claims

1. An implantable lung reduction device comprising:

at least one first implantable member in fluid communication, at a predetermined site, within a lung of a patient, the at least one implantable member passing through a lung via a passage created therethrough;

a sealing device for establishing an airtight seal between the at least one first implantable member and the lung; and

a second member connected to the at least one first implantable member, the second member comprising an apparatus configured for actively drawing air directly from the lung of the patient to vent to an area external of the lung and preventing air from an area external of the lung from re-entering the lung through the implantable lung reduction device, the second member being secured external of the lung.

2. An implantable lung reduction device comprising:

at least one first implantable member in fluid communication, at a predetermined site, within a lung of a patient, the at least one implantable member passing through a lung via a passage created therethrough;

a first sealing device for establishing an airtight seal between the at least one first member and the lung;

a second member connected to and in fluid communication with the at least one first implantable member, the second member comprising an apparatus configured for allowing air directly from the lung of the patient to vent to the ambient environment, and preventing air from the ambient environment from re-entering the lung through the device, the second member including a section positioned external of the body of the patient; and

a second sealing device for sealing the section positioned external of the body of the patient to the body.