CA2459702A1 - Removable lung reduction devices, systems, and methods - Google Patents

Removable lung reduction devices, systems, and methods Download PDF

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Publication number
CA2459702A1
CA2459702A1 CA002459702A CA2459702A CA2459702A1 CA 2459702 A1 CA2459702 A1 CA 2459702A1 CA 002459702 A CA002459702 A CA 002459702A CA 2459702 A CA2459702 A CA 2459702A CA 2459702 A1 CA2459702 A1 CA 2459702A1
Authority
CA
Canada
Prior art keywords
air passageway
air
catheter
anchor
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002459702A
Other languages
French (fr)
Other versions
CA2459702C (en
Inventor
Clifton A. Alferness
Hugo X. Gonzalez
David H. Dillard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spiration Inc
Original Assignee
Spiration, Inc.
Clifton A. Alferness
Hugo X. Gonzalez
David H. Dillard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spiration, Inc., Clifton A. Alferness, Hugo X. Gonzalez, David H. Dillard filed Critical Spiration, Inc.
Publication of CA2459702A1 publication Critical patent/CA2459702A1/en
Application granted granted Critical
Publication of CA2459702C publication Critical patent/CA2459702C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12104—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in an air passage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12027—Type of occlusion
    • A61B17/12036—Type of occlusion partial occlusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12131—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device
    • A61B17/12168—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure
    • A61B17/12172—Occluding by internal devices, e.g. balloons or releasable wires characterised by the type of occluding device having a mesh structure having a pre-set deployed three-dimensional shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0402—Special features for tracheal tubes not otherwise provided for
    • A61M16/0404—Special features for tracheal tubes not otherwise provided for with means for selective or partial lung respiration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205—Introduction devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B2017/1205—Introduction devices
    • A61B2017/12054—Details concerning the detachment of the occluding device from the introduction device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2002/043—Bronchi

Abstract

An air passageway obstruction device (80) includes a frame structure (86) and a flexible membrane (112) overlying the frame structure (86). The frame structure (86) is collapsible upon advancement of the device (80) into the air passageway, expandable into a rigid structure upon deploying in the air passageway and recollapsible upon removal from the air passageway. The flexible membrane (112) obstructs inhaled air flow into a lung portion communicating with the air passageway. The device(80) may be removed after deployment in an air passageway by recollapsing the device (80) and pulling the device (80) proximally through a catheter.

Claims (32)

1. A device for reducing the size of a lung comprising an obstructing structure dimensioned for insertion into an air passageway communicating with a portion of the lung to be reduced in size, the obstructing structure having an outer dimension which is so dimensioned when deployed in the air passageway to preclude air from flowing into the lung portion to collapse the portion of the lung for reducing the size of the lung, the obstructing structure being collapsible to permit removal of the obstruction device from the air passageway.
2. The device of claim 1 wherein the obstructing structure forms a one-way valve.
3. The device of claim 1 further including at least one anchor that anchors the device within the air passageway when the device is deployed and wherein the at least one anchor is releasable during collapse of the obstructing structure and removal of the device from the air passageway.
4. The device of claim 1 wherein the obstructing structure includes a collapsible frame and a flexible membrane overlying the collapsible frame.
5. The device of claim 4 wherein the flexible membrane has an opened proximal end and a closed distal end.
6. The device of claim 5 wherein the flexible membrane inflates to inhaled air to preclude air from flowing into the lung portion and at least partially deflates to exhaled air to permit air to flow from the lung portion.
7. The device of claim 4 wherein the collapsible frame includes at least one anchor that anchors the device within the air passageway when deployed and wherein the at least one anchor is releasable during collapse of the collapsible frame and removal of the device from the air passageway.
8. An assembly comprising:
a device for reducing the size of a lung, the device being dimensioned for insertion into an air passageway communicating with a portion of the lung to be reduced in size, the device having an outer dimension which is so dimensioned when deployed in the air passageway to preclude air from flowing into the lung portion to collapse the portion of the lung for reducing the size of the lung;
a catheter having an internal lumen and being configured to be passed down a trachea, into the air passageway; and a retractor dimensioned to be passed down the internal lumen of the catheter, seizing the device, and pulling the obstruction device proximally into the internal lumen to remove the device from the air passageway, the device being collapsible after having been deployed to permit the device to be pulled proximally into the internal lumen of the catheter by the retractor.
9. The assembly of claim 8 wherein the device is collapsible by the catheter as the device is pulled into the internal lumen of the catheter by the retractor.
10. The assembly of claim 8 wherein the retractor includes collapsing means for collapsing the device before pulling the device into the internal lumen of the catheter.
11. The assembly of claim 8 wherein the device is a one-way valve.
12. The assembly of claim 8 wherein the device further includes at least one anchor that anchors the device within the air passageway when the device is deployed and wherein the at least one anchor is releasable as the device is pulled proximally into the internal lumen of the catheter and collapsed for removal from the air passageway.
13. The assembly of claim 8 wherein the device includes a collapsible frame and a flexible membrane overlying the collapsible frame.
14. The assembly of claim 13 wherein the flexible membrane has an opened proximal end and a closed distal end.
15. The assembly of claim 14 wherein the flexible membrane inflates to inhaled air to preclude air from flowing into the lung portion and at least partially deflates to exhaled air to permit air to flow from the lung portion.
16. The assembly of claim 13 wherein the collapsible frame includes at least one anchor that anchors the device within the air passageway when deployed and wherein the at least one anchor is releasable during collapse of the collapsible frame and removal of the device from the air passageway.
17. A method of removing a deployed air passageway obstruction device from an air passageway in which the device is deployed, the method including the steps of:
passing a catheter, having an internal lumen, down a trachea and into the air passageway;
advancing a retractor down the internal lumen of the catheter to the device;
seizing the device with the retractor;
collapsing the device to free the device from deployment in the air passageway; and pulling the device with the retractor proximally into the internal lumen of the catheter.
18. The method of claim 17 wherein the collapsing step is performed as the device is pulled into the internal lumen of the catheter.
19. The method of claim 18 wherein the device is collapsed by the catheter.
20. The method of claim 19 wherein the device is collapsed by the internal lumen of the catheter.
21. The method of claim 17 wherein the device is collapsed prior to being pulled into the internal lumen of the catheter.
22. The method of claim 21 wherein the device is collapsed by the retractor.
23. The method of claim 17 wherein the device includes at least one anchor for fixing the device in the air passageway when deployed and wherein the collapsing step includes the step of releasing the at least one anchor from the air passageway.
24. An air passageway obstruction device comprising:
a frame structure; and a flexible membrane overlying the frame structure, the frame structure being collapsible upon advancement of the device into the air passageway, expandable into a rigid structure upon deployment in the air passageway whereby the flexible membrane obstructs inhaled air flow into a lung portion communicating with the air passageway, and recollapsible upon removal from the air passageway.
25. The device of claim 24 wherein the frame structure and flexible membrane form a one-way valve.
26. The device of claim 25 wherein the flexible membrane inflates to inhaled air to obstruct the air passageway and at least partially deflates to exhaled air to at least partially unobstruct the air passageway.
27. The device of claim 24 wherein the frame structure includes at least one anchor that engages and fixes the device in the air passageway upon deployment.
28. The device of claim 27 wherein the at least one anchor is releasable from engagement with the air passageway upon recollapse of the frame structure.
29. An air passageway obstruction device comprising:

frame means for forming a support structure; and flexible membrane means overlying the support structure, the frame means being expandable to an expanded state within an air passageway to position the membrane means for obstructing air flow within the air passageway and being collapsible for removal of the device from the air passageway.
30. The device of claim 29 wherein the frame means and flexible membrane means form a one-way valve when the frame means is in the expanded state.
31. The device of claim 29 wherein the frame means further includes anchor means for fixing the device in the air passageway when the frame means is in the expanded state.
32. The device of claim 31 wherein the anchor means releases the device from the air passageway when the frame means collapses for removal of the device from the air passageway.
CA2459702A 2001-09-11 2002-08-09 Removable lung reduction devices, systems, and methods Expired - Fee Related CA2459702C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/951,105 US20030050648A1 (en) 2001-09-11 2001-09-11 Removable lung reduction devices, systems, and methods
US09/951,105 2001-09-11
PCT/US2002/025555 WO2003022124A2 (en) 2001-09-11 2002-08-09 Removable lung reduction devices, systems, and methods

Publications (2)

Publication Number Publication Date
CA2459702A1 true CA2459702A1 (en) 2003-03-20
CA2459702C CA2459702C (en) 2012-05-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2459702A Expired - Fee Related CA2459702C (en) 2001-09-11 2002-08-09 Removable lung reduction devices, systems, and methods

Country Status (9)

Country Link
US (9) US20030050648A1 (en)
EP (2) EP2078502A3 (en)
JP (1) JP4291144B2 (en)
AT (1) ATE418920T1 (en)
AU (2) AU2002324677C1 (en)
CA (1) CA2459702C (en)
DE (1) DE60230638D1 (en)
ES (1) ES2318034T3 (en)
WO (1) WO2003022124A2 (en)

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