Bronchial flow control devices and methods of use

• US 7,771,472 B2
• Filed: 11/18/2005
• Issued: 08/10/2010
• Est. Priority Date: 11/19/2004
• Status: Active Grant

• Current Assignee: Pulmonx Corp.
• Original Assignee: Pulmonx Corp.
• Inventors: Hendricksen, Michael J., Barrett, Michael
• Primary Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US11/282,940
• Publication Number:
  US 20060107956A1
• Time in Patent Office: 1,726 Days
• Field of Search: 623/9, 12810716-20719, 606/108
• US Class Current: 623/9
• CPC Class Codes: A61B 17/12104 in an air passage
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/12177 comprising additional materials, e.g. thrombogenic, having filaments, having fibers or being coated
• 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 2002/043 Bronchi
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Disclosed is an assembly for loading a bronchial flow control device into a container, such as into a delivery catheter. The assembly includes a funnel housing and a puller housing that mate with one another. The funnel housing defines a funnel-shaped loading cavity that receives a flow control device and that gradually reduces in size moving in a first direction. The puller housing is removably attached to the funnel housing and is also removably attachable to a bronchial flow control device that can be positioned in the loading cavity. The puller housing pulls the bronchial flow control device in the first direction through the funnel housing to gradually contract the bronchial flow control device into a compressed state of reduced size relative to the expanded state.

Claims

1. An assembly for loading a bronchial flow control device into a container, comprising:

a funnel housing defining an internal, funnel-shaped loading cavity that gradually reduces in size moving in a first direction, the loading cavity sized to receive a bronchial flow control device in an expanded state;

a puller housing removably attached to the funnel housing, wherein the puller housing is removably attachable to a bronchial flow control device that can be positioned in the loading cavity, wherein the puller housing pulls the bronchial flow control device in the first direction through the funnel housing to gradually contract the bronchial flow control device into a compressed state of reduced size relative to the expanded state; and

a pushing member configured to push the bronchial flow control device out of the funnel housing after the bronchial flow control device has been pulled through the loading cavity to be contracted into the compressed state.

2. An assembly as in claim 1, further comprising a suture attached to the puller housing for removably attaching the puller housing to the bronchial flow control device positioned in the loading cavity.

3. An assembly as in claim 2, further comprising a cutting mechanism that automatically cuts the suture when the puller housing has pulled the bronchial flow control device into the compressed state.

4. An assembly as in claim 1, wherein the funnel housing further defines an internal transfer cavity that communicates with the loading cavity, the transfer cavity sized to receive the bronchial flow control device from the loading cavity and retain the bronchial flow control device in the compressed state.

5. An assembly as in claim 4, wherein the funnel housing further defines a container cavity that communicates with the transfer cavity, the container cavity sized to receive a container that receives the bronchial flow control device in the compressed state.

6. An assembly for loading a bronchial flow control device into a container, comprising:

a funnel housing defining an internal, funnel-shaped loading cavity that gradually reduces in size moving in a first direction, the loading cavity sized to receive a bronchial flow control device in an expanded state;

a bronchial flow control device positioned in the loading cavity, the bronchial flow control device configured for placement in a bronchial passageway to regulate fluid flow through the bronchial passageway, and configured to form a seal with an interior wall of the bronchial passageway;

a puller housing removably attached to the funnel housing;

a pulling structure removably attaching the puller housing to the bronchial flow control device, wherein the puller housing and the pulling structure pull the bronchial flow control device in the first direction through the funnel housing to gradually contract the bronchial flow control device into a compressed state of reduced size relative to the expanded state; and

a detachment mechanism that automatically detaches the pulling structure from the bronchial flow control device after the bronchial flow control device has been pulled and contracted into the compressed state.

7. An assembly as in claim 6, wherein the pulling structure comprises at least one suture.

8. An assembly as in claim 6, wherein the bronchial flow control device includes a valve with a pair of lips that open and close relative to one another, and wherein the assembly further comprises a dilator positioned between the lips of the valve to prevent the lips from sticking to one another.

9. An assembly as in claim 6, wherein the funnel housing further defines an internal transfer cavity that communicates with the loading cavity, the transfer cavity sized to receive the bronchial flow control device from the loading cavity and retain the bronchial flow control device in the compressed state.

10. An assembly as in claim 6, wherein the puller housing and the funnel housing slidably attach to one another.

11. A bronchial flow control device assembly, comprising:

a funnel housing having an internal loading cavity and an internal transfer cavity, the loading cavity being funnel-shaped and having an outer dimension that gradually reduces from a large size to a small size, the transfer cavity communicating with a first end of the loading cavity and having an outer dimension that is substantially equal to the small size of the loading cavity;

a bronchial flow control device positioned in the loading cavity while in an expanded state, the bronchial flow control device configured for placement in a bronchial passageway to regulate fluid flow through the bronchial passageway; and

a puller housing removably connected to the funnel housing in a sliding fashion, the puller housing having a puller structure that connects the puller housing to at least a portion of the bronchial flow control device, wherein the puller housing slidably disconnects from the funnel housing such that the puller structure pulls the bronchial flow control device through the loading cavity and into the transfer cavity such that the bronchial flow control device is contracted into a compressed state when positioned in the transfer cavity wherein the puller housing and the funnel housing slidably are slidably attached to one another.

12. An assembly as in claim 11, wherein the pulling structure comprises at least one suture.

13. An assembly as in claim 11, further comprising a detachment mechanism that automatically detaches the pulling structure from the bronchial flow control device after the bronchial flow control device has been pulled into the compressed state.

14. An assembly as in claim 11, wherein the bronchial flow control device includes a valve with a pair of lips that open and close relative to one another, and wherein the assembly further comprises a dilator positioned between the lips of the valve to prevent the lips from sticking to one another.