Collateral flow channel sealant delivery methods and systems

Patent metadata

Field	Value
Publication number	US-11696763-B2
Application number	US-201916532820-A
Country	US
Kind code	B2
Filing date	Aug 6, 2019
Priority date	Jun 22, 2015
Publication date	Jul 11, 2023
Grant date	Jul 11, 2023

Abstract

Devices, methods, and systems are provided for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment. A video-assisted thoracoscopic device is inserted into a thoracic cavity of a patient and positioned at a fissure between a target lung compartment and an adjacent lung compartment. A collateral flow channel between the target lung compartment and the adjacent lung compartment is then identified using the video-assisted thoracoscopic device and an agent is injected into the collateral flow channel, thereby reducing the collateral flow channel.

First claim

What is claimed is:

1. A method for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment, said method comprising:
inserting a video-assisted thoracoscopic device into a thoracic cavity of a patient;
inserting a cutting device through an incision on the chest of the patient into the thoracic cavity; and
cutting tissue at a collateral flow channel between a target lung compartment and an adjacent lung compartment using the cutting device from the thoracic cavity thereby disrupting the collateral flow channel.

2. The method of claim 1 further comprising stapling, suturing, or gluing the cut tissue.

3. The method of claim 1 further comprising identifying the collateral flow channel using the video-assisted thoracoscopic device.

4. A method as in claim 1 , further comprising placing an endobronchial valve within an airway leading to the target lung compartment.

5. A method as in claim 4 , wherein the endobronchial valve is a one-way flow control valve configured to allow air to flow out of the target lung compartment and prevent air flow into the target lung compartment.

6. A method for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment, said method comprising:
inserting a video-assisted thoracoscopic device into a thoracic cavity of a patient;
inserting a needle through an incision on the chest of the patient into the thoracic cavity and through tissue forming a collateral flow channel between a target lung compartment and an adjacent lung compartment; and
injecting an agent through the needle and into the collateral flow channel, thereby reducing the collateral flow channel.

7. The method of claim 6 further comprising placing a clip on the collateral channel thereby pinching closed the collateral channel.

8. The method of claim 6 , further comprising cutting tissue at the collateral flow channel thereby disrupting the collateral flow channel.

9. The method of claim 6 , wherein the agent is a sealant.

10. The method of claim 6 , wherein the agent is a sclerosing agent.

11. The method of claim 6 , wherein the agent is autologous blood.

12. The method of claim 6 further comprising identifying the collateral flow channel using the video-assisted thoracoscopic device.

13. A method as in claim 6 , further comprising placing an endobronchial valve within an airway leading to the target lung compartment.

14. A method as in claim 13 , wherein the endobronchial valve is a one-way flow control valve configured to allow air to flow out of the target lung compartment and prevent air flow into the target lung compartment.

15. A method for occluding a collateral flow channel between a target lung compartment and an adjacent lung compartment, said method comprising:
inserting a video-assisted thoracoscopic device into a thoracic cavity of a patient;
inserting a closing device into the thoracic cavity of the patient; and
clipping, stapling, or suturing tissue at a collateral flow channel between a target lung compartment and an adjacent lung compartment using the closing device from the thoracic cavity thereby disrupting the collateral flow channel.

16. The method of claim 15 further comprising identifying the collateral flow channel using the video-assisted thoracoscopic device.

17. A method as in claim 15 , further comprising placing an endobronchial valve within an airway leading to the target lung compartment.

18. A method as in claim 17 , wherein the endobronchial valve is a one-way flow control valve configured to allow air to flow out of the target lung compartment and prevent air flow into the target lung compartment.

Assignees

• Pulmonx Corp

Inventors

• Radhakrishnan Sri
• Olivera Ryan

Classifications

• A61F2002/043

  Bronchi · CPC title

• A61B17/12104 Primary

  in an air passage · CPC title

• A61M16/0459

  one cuff behind another · CPC title

• A61B5/08

  Measuring devices for evaluating the respiratory organs · CPC title

• A61F2250/0067

  Means for introducing or releasing pharmaceutical products into the body · CPC title