Guidewire delivery of implantable bronchial isolation devices in accordance with lung treatment

• US 20040039250A1
• Filed: 05/28/2003
• Published: 02/26/2004
• Est. Priority Date: 05/28/2002
• Status: Abandoned Application

• Current Assignee: Pulmonx Pulmonx
• Original Assignee: Pulmonx Pulmonx
• Inventors: Hendricksen, Michael, Hundertmark, Ronald, Sutton, Douglas, Tholfsen, David, Fields, Antony
• Application Number:
  US10/448,154
• Publication Number:
  US 20040039250A1
• Time in Patent Office: Days
• US Class Current: 600/104
• 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 2/06 Blood vessels
• 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 2/2427 Devices for manipulating or deploying heart valves during implantation
• 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

Abstract

Disclosed are method and devices for deploying a guidewire in a lung of a patient. The method comprises removably coupling a distal end of the guidewire to a distal end of a delivery device having an elongated shaft and a lumen extending therethrough. The distal end of the delivery device is delivered through the patient'"'"'s trachea into a bronchial passageway of the lung so that the distal end of the guidewire is disposed in the bronchial passageway. The delivery device is then removed from the a bronchial passageway while the distal end of the guidewire remains in the bronchial passageway.

Claims

1. A method of deploying a guidewire in a lung of a patient, comprising:

removably coupling a distal end of the guidewire to a distal end of a delivery device having an elongated shaft and a lumen extending therethrough;

positioning the distal end of the delivery device through the patient'"'"'s trachea into a bronchial passageway of the lung so that the distal end of the guidewire is disposed in the bronchial passageway;

removing the delivery device from bronchial passageway while the distal end of the guidewire remains in the bronchial passageway.

2. A method as defined in claim 1, additionally comprising inserting an elongated grasping tool into the lumen of the delivery device so that a grasping member on a distal end of the grasping tool protrudes outwardly of the distal end of the delivery device, and wherein the step of removably securing comprises grasping the distal end of the guidewire with the grasping member.

3. A method as defined in claim 2, wherein the grasping member comprises a loop, and wherein grasping the distal end of the guidewire with the grasping member comprises positioning the guidewire through the loop.

4. A method as defined in claim 2, wherein the grasping member comprises forceps that include two or more fingers, and wherein grasping the distal end of the guidewire with the grasping member comprises positioning the fingers around the guidewire.

5. A method as defined in claim 4, wherein the fingers are oriented transverse to a longitudinal axis of the elongated flexible shaft.

6. A method as defined in claim 2, wherein the grasping member comprises opposed jaws, and wherein grasping the distal end of the guidewire with the grasping member comprises positioning the jaws around the guidewire.

7. A method as defined in claim 1, wherein at least one clip is located on the distal exterior end of the delivery device, and wherein the step of removably securing comprises coupling the guidewire to the clip.

8. A method as defined in claim 7, wherein the clip defines a guidewire lumen sized to receive the guidewire, and wherein attaching the guidewire to the clip comprises inserting the distal end of the guidewire into the guidewire lumen.

9. A method as defined in claim 8, wherein the distal end of the guidewire fits tightly within the guidewire lumen.

10. A method as defined in claim 8, wherein the guidewire is slidable within the lumen.

11. A method as defined in claim 1, wherein two or more clips are located on the distal end of the delivery device, each clip having a guidewire lumen into which the guidewire can be positioned.

12. A method as defined in claim 11, wherein the two or more clips support a guidewire tube that can receive the distal end of the guidewire, and wherein attaching the distal end of the guidewire to the clip comprises inserting the distal end of the guidewire into the guidewire lumen.

13. A method as defined in claim 1, additionally comprising releasing the guidewire from the distal end of the delivery device.

14. A method as defined in claim 1, wherein the delivery device is a bronchoscope.

15. A guidewire grasping tool for coupling a guidewire to a bronchoscope positionable in the lung of a patient, comprising:

an elongate shaft having a proximal end and a distal end;

a grasping member at the distal end of the elongate shaft, wherein the elongate shaft is sized to be positioned within a lumen of a bronchoscope so that the grasping member protrudes outwardly from a distal end of the bronchoscope and the proximal end is located near a proximal end of the bronchoscope, and wherein the grasping member can grasp a guidewire to couple the guidewire to the bronchoscope and release the guidewire from the bronchoscope.

16. A guidewire grasping tool as defined in claim 15, wherein the grasping member comprises a loop sized to receive the distal end of the guidewire.

17. A guidewire grasping tool as defined in claim 16, further comprising a handle at the proximal end of the elongate shaft, wherein the handle is coupled to the loop, and wherein the handle can be manipulated to cause the loop to tighten.

18. A guidewire grasping tool as defined in claim 15, wherein the grasping member comprises forceps having two or more fingers that can grasp the guidewire, and wherein the fingers can be moved toward one another.

19. A guidewire grasping tool as defined in claim 17, wherein the fingers are oriented transverse to the axis of the bronchoscope when the grasping tool is positioned in the bronchoscope.

20. A guidewire grasping tool as defined in claim 17, wherein the fingers are movable toward and away from one another by manipulating the handle.

21. A guidewire grasping tool as defined in claim 15, wherein the grasping member comprises a two or more opposed jaws that can close to secure the guidewire between the jaws, and wherein the jaws can be opened and closed.

22. A guidewire grasping tool as defined in claim 21, further comprising a handle, wherein the jaws are openable and closeable by manipulating the handle.

23. A system for use in a lung of a patient, comprising:

a bronchoscope having a proximal end and a distal end, the bronchoscope having an elongated flexible shaft and a least one internal lumen;

a grasping tool coupled to the bronchoscope, wherein the grasping tool can be used to slidably couple the guidewire to the bronchoscope exterior to the flexible shaft.

24. A system as defined in claim 23, wherein the grasping tool comprises:

an elongate shaft having a proximal end and a distal end;

a grasping member at the distal end of the elongate shaft, wherein the elongate shaft is sized to be positioned within a lumen of a bronchoscope so that the grasping member protrudes outwardly from a distal end of the bronchoscope and the proximal end is located near a proximal end of the bronchoscope, and wherein the grasping member can grasp a guidewire to couple the guidewire to the bronchoscope and release the guidewire from the bronchoscope.

25. A system as defined in claim 23, wherein the grasping tool comprises at least one clip located on the distal end of the bronchoscope, and wherein the clip defines a guidewire passage sized to receive the distal end of the guidewire.

26. A system as defined in claim 25, wherein the guidewire is slidable within the guidewire passage.

27. A system as defined in claim 25, wherein the distal end of the guidewire fits tightly within the guidewire lumen.

28. A system as defined in claim 23, wherein the grasping tool comprises two or more clips are located on the distal end of the bronchoscope, the two or more clips supporting a guidewire tube that can receive the distal end of the guidewire.

29. A system as defined in claim 25, wherein the at least one clip is removable from the bronchoscope.