Delivery methods and devices for implantable bronchial isolation devices

• US 20060004305A1
• Filed: 06/29/2005
• Published: 01/05/2006
• Est. Priority Date: 11/27/2002
• Status: Active Grant

• Current Assignee: Pulmonx Corp.
• Original Assignee: Pulmonx Pulmonx
• Inventors: Hendricksen, Michael, Hundertmark, Ronald R., George, Robert M.
• Granted Patent: US 7,814,912 B2
• Time in Patent Office: Days
• US Class Current: 600/593
• 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 2017/1205 Introduction devices
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2017/242 for bronchial passages
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2002/043 Bronchi

Abstract

Disclosed is a sizing device for sizing an inside diameter of a lung passageway. The device includes an elongate shaft configured for positioning in the lung passageway and a sizing element at the distal end of the shaft. The sizing element defines a range of transverse dimensions that correspond to a range of transverse dimensions suitable for use with a predetermined set of bronchial isolation devices. The device is used to determine the suitability of a bronchial isolation device for use in the lung passageway prior to using a separate delivery catheter to deliver the bronchial isolation device into the lung passageway.

Claims

1. A device for sizing an inside diameter of a lung passageway, comprising:

an elongate shaft configured for positioning in the lung passageway;

a sizing element at the distal end of the shaft, the sizing element defining a range of transverse dimensions that correspond to a range of transverse dimensions suitable for use with a predetermined set of bronchial isolation devices, wherein the device is used to determine the suitability of a bronchial isolation device for use in the lung passageway prior to using a separate delivery catheter to deliver the bronchial isolation device into the lung passageway.

2. The device of claim 1, wherein the sizing element comprises a plurality of transverse extensions including a long extension, an intermediate extension, and a short extension extensions, the length of the long extension corresponding to the maximum diameter of the larger of two sizes of bronchial isolation devices, the length of the short extension corresponding to a minimum diameter of the smaller of two sizes of bronchial isolation devices, the length of the intermediate extension corresponding to a transition diameter between the two bronchial isolation devices.

3. The device of claim 1, wherein the sizing element comprises a first extension disposed on the housing, wherein the first extension defines a length substantially equal to a largest possible diameter for a bronchial passageway in which the bronchial isolation device can be used.

4. The device of claim 3, wherein the sizing element further comprises a second extension disposed on the housing, wherein the second extension defines a length substantially equal to a smallest possible diameter for a bronchial passageway in which the bronchial isolation device can be used.

5. The device of claim 4, wherein the sizing element further comprises a third extension disposed on the housing, wherein the third extension defines a length substantially equal to a transition diameter between a pair of differently-sized bronchial isolation devices.

6. The device of claim 1, wherein the sizing element comprises a depth measuring extension comprising an elongate post that extends axially from the distal end of the shaft, wherein the elongate post has a length that is substantially equal to the length of a portion of a bronchial isolation device that contacts the bronchial lumen wall when the bronchial isolation device is implanted in the lung passageway.

7. The device of claim 1, further comprising a handle on a proximal end of the shaft, the handle having a hole sized to receive the depth measuring to facilitate storage of the device.

8. The device of claim 2, wherein the extensions are flexible such that the extensions can be folded back against the shaft during insertion of the device through a lumen of a delivery device.

9. A device for sizing an inside diameter of a lung passageway, comprising:

an elongate shaft configured for positioning in the lung passageway;

a sizing element disposed on a distal end of the shaft, the sizing element providing an indication as to the size of the lung passageway for selection of a bronchial isolation device to be inserted into the lung passageway.

10. The device of claim 9, wherein the sizing element defines a range of transverse dimensions that correspond to a range of transverse dimensions suitable for use with a predetermined set of bronchial isolation devices, wherein the device is used to determine the suitability of a bronchial isolation device for use in the lung passageway prior to using a separate delivery catheter to deliver the bronchial isolation device into the lung passageway.

11. The device of claim 9, wherein the sizing element comprises a plurality of transverse extensions including a long extension, an intermediate extension, and a short extension extensions, the length of the long extension corresponding to the maximum diameter of the larger of two sizes of bronchial isolation devices, the length of the short extension corresponding to a minimum diameter of the smaller of two sizes of bronchial isolation devices, the length of the intermediate extension corresponding to a transition diameter between the two bronchial isolation devices.

12. The device of claim 9, wherein the sizing element comprises a first extension disposed on the housing, wherein the first extension defines a length substantially equal to a largest possible diameter for a bronchial passageway in which the bronchial isolation device can be used.

13. The device of claim 12, wherein the sizing element further comprises a second extension disposed on the housing, wherein the second extension defines a length substantially equal to a smallest possible diameter for a bronchial passageway in which the bronchial isolation device can be used.

14. The device of claim 13, wherein the sizing element further comprises a third extension disposed on the housing, wherein the third extension defines a length substantially equal to a transition diameter between a pair of differently-sized bronchial isolation devices.

15. The device of claim 9, wherein the sizing element comprises a depth measuring extension comprising an elongate post that extends axially from the distal end of the shaft, wherein the elongate post has a length that is substantially equal to the length of a portion of a bronchial isolation device that contacts the bronchial lumen wall when the bronchial isolation device is implanted in the lung passageway.

16. The device of claim 9, further comprising a handle on a proximal end of the shaft, the handle having a hole sized to receive the depth measuring to facilitate storage of the device.

17. The device of claim 10, wherein the extensions are flexible such that the extensions can be folded back against the shaft during insertion of the device through a lumen of a delivery device.