Methods and devices for use in performing pulmonary procedures

• US 20040134487A1
• Filed: 11/06/2003
• Published: 07/15/2004
• Est. Priority Date: 03/04/2000
• Status: Abandoned Application

• Current Assignee: Emphasys Medical, Inc. (Pulmonx Corp.)
• Original Assignee: Emphasys Medical, Inc. (Pulmonx Corp.)
• Inventors: Sutton, Douglas S., Gifford, Hanson S. III, Andreas, Bernard H., Chew, Sunmi, Deem, Mark E., Fields, Antony J., Hundertmark, Ronald R., Rapacki, Alan R., French, Ronald, Wilson, Peter M.
• Application Number:
  US10/704,023
• Publication Number:
  US 20040134487A1
• Time in Patent Office: Days
• US Class Current: 128/200.19
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12104 in an air passage
• CPC Class Codes: A61B 17/12131 characterised by the type of occluding device
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/2215 having an open distal end
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2476 Valves implantable in the body not otherwise provided for
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/043 Bronchi
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61P 1/00 Drugs for disorders of the alimentary tract or the digestive system
• CPC Class Codes: A61P 11/00 Drugs for disorders of the respiratory system
• CPC Class Codes: F16K 15/147 : the closure elements having specially formed slits or being of an elongated easily collapsible form
• CPC Class Codes: Y10S 128/912 : Connections and closures for tubes delivering fluids to or from the body

Abstract

An implantable flow control element is provided which prevents air from entering an isolated portion of a patient'"'"'s lung. The element may permit air to escape from the isolated portion so that the element acts like a valve. Systems for implanting pulmonary devices are also provided.

Claims

1. A device for controlling air flow in a pulmonary passageway, comprising:

a body;

a one-way valve coupled to the body, the valve configured to prevent air from entering an isolated portion of the patient'"'"'s lung but permitting expiratory air to pass through the valve, wherein the valve opens upon a pressure differential of no more than 10 inch water.

2. A device as defined in claim 1, wherein the valve opens upon a pressure differential of no more than 5 inch water.

3. A device as defined in claim 1, wherein the valve opens upon a pressure differential of no more than 1 inch water.

4. A device as defined in claim 1, wherein the body has a sealing portion which seals against the wall of the pulmonary passageway.

5. A device as defined in claim 4, wherein the sealing portion is deflectable to permit the passage of air in an expiratory direction.

6. A device as defined in claim 4, wherein the sealing portion is a ring.

7. A device as defined in claim 4, wherein the sealing portion is made of a resilient material.

8. A device as defined in claim 1, wherein the body includes an expandable support structure.

9. A device as defined in claim 1, wherein the body is made of an elastomeric material.

10. A device as defined in claim 8, wherein the body covers only part of the expandable support structure.

11. A device as defined in claim 1, wherein the valve is integrally formed with the body.

12. A device as defined in claim 1, wherein the valve has a first lip and a second lip, the first and second lips engaging one another when the valve is in a closed position, and wherein the first and second lips form a duckbill valve.

13. A device for controlling air flow in a pulmonary passageway, comprising:

a body;

a one-way valve coupled to the body, the valve configured to prevent air from entering an isolated portion of the patient'"'"'s lung but permitting expiratory air to pass through the valve, wherein a pressure differential of 10 inch water or less opens the valve.

14. A device as defined in claim 13, wherein a pressure differential of 5 inch water or less opens the valve.

15. A device as defined in claim 13, wherein a pressure differential of 1 inch water or less opens the valve.

16. A device as defined in claim 13, wherein the body has a sealing portion which seals against the wall of the pulmonary passageway.

17. A device as defined in claim 16, wherein the sealing portion is deflectable to permit the passage of air in an expiratory direction.

18. A device as defined in claim 16, wherein the sealing portion is a ring.

19. A device as defined in claim 16, wherein the sealing portion is made of a resilient material.

20. A device as defined in claim 13, wherein the body includes an expandable support structure.

21. A device as defined in claim 13, wherein the body is made of an elastomeric material.

22. A device as defined in claim 20, wherein the body covers only part of the expandable support structure.

23. A device as defined in claim 13, wherein the valve is integrally formed with the body.

24. A device as defined in claim 13, wherein the valve has a first lip and a second lip, the first and second lips engaging one another when the valve is in a closed position, and wherein the first and second lips form a duckbill valve.