METHODS AND DEVICES TO MAINTAIN PATENCY OF A LUMEN IN PARENCHYMAL TISSUE OF THE LUNG

• US 20080283065A1
• Filed: 02/21/2008
• Published: 11/20/2008
• Est. Priority Date: 05/15/2007
• Status: Abandoned Application

• Current Assignee: Portaero, Inc
• Original Assignee: Portaero, Inc
• Inventors: Tanaka, Don, Chang, Asia, Russell, Scott M.
• Application Number:
  US12/034,788
• Publication Number:
  US 20080283065A1
• Time in Patent Office: Days
• US Class Current: 128/898
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 2017/00951 adhesive
• CPC Class Codes: A61B 2017/306 holding by means of suction
• CPC Class Codes: A61B 2017/3425 for internal organs, e.g. heart ports
• CPC Class Codes: A61B 2017/3486 Balloon
• CPC Class Codes: A61B 2017/3488 Fixation to inner organ or inner body tissue
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/00 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 as cosmetic articles, see the relevant subclasses, e.g. wigs, hair pieces, A41G3/00, A41G5/00; artificial nails A45D31/00; dental prostheses A61C13/00; materials for prostheses A61L27/00; artificial hearts A61M60/00; artificial kidneys A61M1/14
• CPC Class Codes: A61F 2/0063 Implantable repair or support meshes, e.g. hernia meshes
• CPC Class Codes: A61M 16/0406 implanted flow modifiers
• CPC Class Codes: A61M 16/0484 at the distal end
• CPC Class Codes: A61M 16/101 using an oxygen concentrator
• CPC Class Codes: A61M 16/106 in a path
• CPC Class Codes: A61M 2039/025 through bones or teeth, e.g. through the skull
• CPC Class Codes: A61M 2039/0252 for access to the lungs
• CPC Class Codes: A61M 2039/0261 Means for anchoring port to the body, or ports having a special shape or being made of a specific material to allow easy implantation/integration in the body
• CPC Class Codes: A61M 2039/0276 for introducing or removing fluids into or out of the body
• CPC Class Codes: A61M 2039/0279 : for introducing medical instruments into the body, e.g. endoscope, surgical tools
• CPC Class Codes: A61M 2039/0297 : at least part of it being inflatable, e.g. for anchoring, sealing or removing
• CPC Class Codes: A61M 2202/0007 : introduced into the body
• CPC Class Codes: A61M 2202/0208 : Oxygen
• CPC Class Codes: A61M 2202/03 : Gases in liquid phase, e.g. cryogenic liquids
• CPC Class Codes: A61M 2210/101 : Pleural cavity
• CPC Class Codes: A61M 2210/1039 : Lungs
• CPC Class Codes: A61M 25/0068 : Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/007 : Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
• CPC Class Codes: A61M 25/0074 : Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
• CPC Class Codes: A61M 25/008 : Strength or flexibility characteristics of the catheter tip
• CPC Class Codes: A61M 25/04 : in the body, e.g. expansible A61M25/10, A61M16/0488 take precedence
• CPC Class Codes: A61M 39/0247 : Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A mechanical device and/or chemical process is utilized to maintain luminal patency in conduits or other devices implanted in the lung or lungs of a patient. The mechanical device and/or chemical process ensures that air flows freely through a conduit implanted through an anastomosis into a lung. The device is suitable for use in conjunction with ventilation bypass treatments for chronic obstructive pulmonary disease.

Claims

1. A system to maintain luminal patency proximate to an opening in parenchymal tissue comprising:

an implant with a lumen and an opening communicating with the lumen, said implant is adapted to be implanted in parenchymal tissue;

a device to be used in combination with the implant, said device can interfere with at least one of tissue buildup and secretional buildup.

2. The system of claim 1 wherein said device includes a serrated tip that is one of formed with or attached to the opening of the lumen.

3. The system of claim 1 wherein said device is associated with the opening of said implant and said device can create new injury to the parenchymal tissue as the implant moves relative to the parenchymal tissue.

4. The system of claim 1 wherein said device includes a tip that is one of formed with or attached to the opening of the lumen and that can hinder tissue growth at the opening.

5. The system of claim 1 wherein said device includes a trocar with a sharp end.

6. The system of claim 1 wherein said device is a sharp tipped surgical instrument.

7. The system of claim 1 wherein said device is a sharp tipped surgical instrument that can fit into the lumen and create an opening in parenchymal tissue.

8. The system of claim 1 wherein said device is a sharp surgical instrument that can fit into said lumen and inhibit tissue growth at the opening of said lumen.

9. The system of claim 1 wherein said device is sized to fit into said lumen and inhibit tissue growth at the opening of said lumen.

10. The system of claim 1 wherein said device is a balloon catheter.

11. The system of claim 1 wherein said device is a balloon that can be positioned adjacent to the opening to inhibit tissue growth.

12. The system of claim 1 wherein said device is a balloon that can be repeatedly inflated and deflated adjacent to the opening of the implant to inhibit tissue growth.

13. The system of claim 1 wherein said device is a balloon that can be repeatedly inflated and deflated beyond the opening of the implant to inhibit tissue growth.

14. The system of claim 1 wherein said device is one of a drug and an agent, which can inhibit cell growth.

15. The system of claim 1 wherein said device is one of a drug and an agent, which can inhibit cell growth, which is coated onto said implant either on or adjacent the opening of said implant.

16. The system of claim 1 wherein said device is one of a drug and an agent, which can inhibit cell growth, and is incorporated directly into the implant.

17. The system of claim 1 wherein said device is one of a drug and an agent, which can inhibit cell growth, and is incorporated into a matrix that is associated with the implant.

18. The system of claim 1 wherein said device is one of a drug and an agent, which can inhibit cell growth, and is incorporated into a polymeric matrix that is associated with the implant.

19. The system of claim 1 wherein said device includes a cuff that can contain and release a one of a drug and an agent, which can inhibit cell growth.

20. The system of claim 1 wherein said device includes one of a drug and an agent that can inhibit cell growth and that can be released over time.

21. The system of claim 1 wherein said device is one of an injection catheter and an infusion balloon, which can deliver one of a drug and an agent that can inhibit cell growth.

22. A method of maintaining patency in parenchymal tissue comprising in any order:

deploying an implant to create patency in parenchymal tissue;

deploying a device to maintain patency in parenchymal tissue.

23. The method of claim 22 wherein:

said step of deploying an implant includes deploying a conduit with a lumen and an opening in parenchymal tissue; and

said step of deploying a device to maintain patency includes deploying a device before, after or simultaneously with the implant.

24. The method of claim 23 wherein said device deploying step includes deploying one of:

a. a serrated tip that is formed with or attached to the opening of the lumen;

b. a device that creates new injury to the parenchymal tissue;

c. a device that hinders tissue growth at the opening;

d. a device that is a trocar;

e. a device that is a sharp surgical instrument;

f. a balloon;

g. a balloon catheter;

h. a cuff;

i. a drug;

j. an agent;

k. a drug coated matrix;

l. an injection catheter;

m. an infusion balloon.