Apparatus and method for producing CO2 enriched medical foam

• US 10,155,093 B2
• Filed: 02/25/2016
• Issued: 12/18/2018
• Est. Priority Date: 11/27/2006
• Status: Active Grant

• Current Assignee: Frank Levy, Kimberley Levy
• Original Assignee: Frank Levy, Kimberley Levy
• Inventors: Levy, Frank, Levy, Kimberley
• Primary Examiner(s): Bosques, Edelmira
• Application Number:
  US15/053,530
• Publication Number:
  US 20160166782A1
• Time in Patent Office: 1,027 Days
• Field of Search: 604 24
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12186 liquid materials adapted to be injected
• CPC Class Codes: A61B 2017/00778 Operations on blood vessels A61B2017/22097, A61B2017/320741 take precedence
• CPC Class Codes: A61B 2017/00884 enhancing wound closure
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61B 2017/1205 Introduction devices
• CPC Class Codes: A61K 9/0019 Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner non-active ingredients are additionally classified in A61K47/00
• CPC Class Codes: A61K 9/122 Foams; Dry foams edible foams A61K9/0056
• CPC Class Codes: A61K 9/124 characterised by the propellant
• CPC Class Codes: A61L 2300/418 Agents promoting blood coagulation, blood-clotting agents, embolising agents
• CPC Class Codes: A61L 2430/36 for embolization or occlusion, e.g. vaso-occlusive compositions or devices artificial blood vessels A61L27/507
• CPC Class Codes: A61L 31/146 Porous materials, e.g. foams or sponges
• CPC Class Codes: A61L 31/16 Biologically active materials, e.g. therapeutic substances A61L31/047 takes precedence
• CPC Class Codes: A61M 13/003 Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing
• CPC Class Codes: A61M 2210/12 Blood circulatory system
• CPC Class Codes: A61M 35/003 Portable hand-held applicators having means for dispensing or spreading integral media hand-held massage devices with liquid delivery A61H7/003
• CPC Class Codes: A61M 37/00 Other apparatus for introducing media into the body for reproduction or fertilisation A61B17/425; apparatus for iontophoresis or cataphoresis A61N1/30; Percutany, i.e. introducing medicines into the body by diffusion through the skin salt baths A61H33/04
• CPC Class Codes: A61M 5/2053 Media being expelled from injector by pressurised fluid or vacuum for infusion A61M5/145, A61M5/155

Abstract

A gas enriched foam generating apparatus for performing medical procedures includes a foam generating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof. The apparatus also includes a compressed gas unit fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly and a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly. Compressed gas, from the compressed gas unit, and the medical solution are combined within the foam generating tip assembly in a manner generating a gas enriched foam that is ultimately dispensed from the foam generating apparatus.

Claims

1. A gas enriched foam generating apparatus for performing medical procedures, comprising:

a foam generating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof;

a compressed gas unit fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly; and

a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly;

wherein compressed gas, from the compressed gas unit, and the medical solution are combined within the foam generating tip assembly in a manner generating a gas enriched foam that is ultimately dispensed from the foam generating apparatus; and

further including a dual lumen catheter including a first end and a second end to which the foam generating tip assembly is secured.

2. The foam generating apparatus according to claim 1, wherein the compressed gas unit is fluidly connected to a first lumen of the dual lumen catheter.

3. The foam generating apparatus according to claim 2, wherein the medical solution is fluidly connected to a second lumen of the dual lumen catheter.

4. The foam generating apparatus according to claim 3, wherein the multi-channel arrangement of the foam generating tip assembly employs a Venturi arrangement with a mixing chamber.

5. The foam generating apparatus according to claim 4, wherein the tip is composed of a sintered material having a porous structure allowing for the passage of the pressurized gas and the medical solution.

6. A medical method, comprising:

treating arteries using the foam generating apparatus according to claim 2.

7. A medical method, comprising:

treating veins using the foam generating apparatus according to claim 2.

8. The medical method according to claim 7, wherein the vein is the great saphenous vein.

9. The foam generating apparatus according to claim 1, wherein the compressed gas is pressurized CO₂.

10. A gas enriched foam generating apparatus for performing medical procedures, comprising:

a foam generating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof;

a compressed gas unit fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly; and

a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly;

wherein compressed gas, from the compressed gas unit and the medical solution are combined within the foam generating tip assembly in a manner generating a gas enriched foam that is ultimately dispensed from the foam generating apparatus; and

wherein the foam generating tip assembly includes a tip member composed of a sintered material having a porous structure allowing for the passage of the pressurized gas and the medical solution.

11. The foam generating apparatus according to claim 10, wherein the compressed gas is pressurized CO₂.

12. A medical method, comprising:

treating arteries using the foam generating apparatus according to claim 10.

13. A medical method, comprising:

treating veins using the foam generating apparatus according to claim 10.

14. The medical method according to claim 13, wherein the vein is the great saphenous vein.

15. A gas enriched foam generating apparatus for performing medical procedures, comprising:

a foam generating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof;

a compressed gas unit fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly; and

a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly;

wherein compressed gas, from the compressed gas unit, and the medical solution are combined within the foam generating tip assembly in a manner generating a gas enriched foam that is ultimately dispensed from the foam generating apparatus; and

wherein the medical solution is a sclerosing agent.

16. The foam generating apparatus according to claim 15, further including a further including a dual lumen catheter including a first end and a second end to which the foam generating tip assembly is secured.

17. The foam generating apparatus according to claim 16, wherein the compressed gas unit is fluidly connected to a first lumen of the dual lumen catheter.

18. The foam generating apparatus according to claim 17, wherein the medical solution is fluidly connected to a second lumen of the dual lumen catheter.

19. The foam generating apparatus according to claim 18, wherein the foam generating tip assembly employs a Venturi arrangement with a mixing chamber.

20. The foam generating apparatus according to claim 15, wherein the compressed gas is pressurized CO₂.

21. A medical method, comprising:

treating arteries using the foam generating apparatus according to claim 15.

22. A medical method, comprising:

treating veins using the foam generating apparatus according to claim 15.

23. The medical method according to claim 22, wherein the vein is the great saphenous vein.

24. A gas enriched foam generating apparatus for performing medical procedures, comprising:

a foam generating tip assembly composed of a multi-channel arrangement at a proximal first end thereof and a tip at a distal second end thereof;

a compressed gas unit fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly; and

a medical solution fluidly connected to the multi-channel arrangement at a proximal first end of the foam generating tip assembly;

wherein compressed gas, from the compressed gas unit, and the medical solution are combined within the foam generating tip assembly in a manner generating a gas enriched foam that is ultimately dispensed from the foam generating apparatus; and

further including a needle body including the foam generating tip assembly wherein the compressed gas unit and the medical solution are fluidly connected to the multi-channel arrangement at a needle hub at a proximal end of the needle body.

25. The foam generating apparatus according to claim 24, wherein the multi-channel arrangement of the foam generating tip assembly employs a Venturi arrangement with a mixing chamber.

26. The foam generating apparatus according to claim 25, wherein the tip is composed of a material having a porous structure allowing for the passage of the pressurized gas and the medical solution.

27. The foam generating apparatus according to claim 24, wherein the compressed gas is pressurized CO₂.

28. A medical method, comprising:

treating arteries using the foam generating apparatus according to claim 24.

29. A medical method, comprising:

treating veins using the foam generating apparatus according to claim 24.

30. The medical method according to claim 29, wherein the vein is the great saphenous vein.