METHODS FOR REMOVING A VALVE FROM A VESSEL

• US 20100168840A1
• Filed: 02/06/2010
• Published: 07/01/2010
• Est. Priority Date: 05/29/2007
• Status: Active Grant

• Current Assignee: CVDEVICES, LLC
• Original Assignee: CVDEVICES, LLC
• Inventors: Kassab, Ghassan S.
• Granted Patent: US 8,372,069 B2
• Time in Patent Office: Days
• US Class Current: 623/1.260
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 17/320725 with radially expandable cutting or abrading elements A61B17/32075 takes precedence
• CPC Class Codes: A61B 17/320758 with a rotating cutting instrument, e.g. motor driven A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/22097 Valve removal in veins
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2436 Deployment by retracting a sheath

Abstract

Methods for removing a valve from a bodily vessel. In at least one method for removing a valve from a bodily vessel, the method comprises the steps of introducing an umbrella device into a vessel, positioning the umbrella device within an aperture within the valve, deploying a first umbrella of the umbrella device on a first side of the valve to engage the valve at the first side of the valve, deploying a second umbrella of the umbrella device on a second side of the valve to engage the valve at the second side of the valve, operating a mechanical drill of the umbrella device to grind the valve, collapsing the first umbrella and the second umbrella to facilitate withdrawal of the umbrella device from the vessel, and withdrawing the umbrella device from the vessel.

Claims

1. A method for removing a valve from a bodily vessel, the method comprising the steps of:

introducing an umbrella device into a vessel, the umbrella device comprising;

a shaft catheter having a distal end and a proximal end;

a first umbrella comprising a first mesh, the first umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter;

a second umbrella comprising a second mesh, the second umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter, wherein the second umbrella is positioned along the shaft catheter proximally to the first umbrella; and

a mechanical drill comprising at least one blade, the mechanical drill rotatably coupled to the shaft catheter and positioned between the first umbrella and the second umbrella;

positioning the umbrella device within an aperture within the valve;

deploying the first umbrella on a first side of the valve, wherein the deployed first umbrella engages the valve at a first side of the valve;

deploying the second umbrella on a second side of the valve, wherein the deployed second umbrella engages the valve at a second side of the valve;

operating the mechanical drill to grind the valve;

collapsing the first umbrella and the second umbrella to facilitate withdrawal of the umbrella device from the vessel; and

withdrawing the umbrella device from the vessel.

2. The method of claim 1, wherein the first umbrella comprises a first cauterizing mechanism coupled to a circumferential edge of the first umbrella.

3. The method of claim 2, further comprising the step of

cauterizing the valve using the first cauterizing mechanism to excise the valve from the vessel prior to the step of operating the mechanical drill to grind the valve.

4. The method of claim 1, wherein the second umbrella comprises a second cauterizing mechanism coupled to a circumferential edge of the second umbrella.

5. The method of claim 4, further comprising the step of:

cauterizing the valve using the second cauterizing mechanism to excise the valve from the vessel prior to the step of operating the mechanical drill to grind the valve.

6. The method of claim 1, wherein the first umbrella comprises a first cauterizing mechanism coupled to a circumferential edge of the first umbrella, and wherein the second umbrella comprises a second cauterizing mechanism coupled to a circumferential edge of the second umbrella.

7. The method of claim 6, further comprising the step of:

cauterizing the valve using the first cauterizing mechanism and the second cauterizing mechanism simultaneously to excise the valve from the vessel prior to the step of operating the mechanical drill to grind the valve.

8. The method of claim 1, further comprising the step of:

positioning a temporary stent valve within the vessel using the umbrella device prior to the step of positioning the umbrella device within an aperture within the valve.

9. The method of claim 1, further comprising the step of:

positioning a permanent stent valve at or near the position of the excised valve.

10. The method of claim 9, further comprising the step of:

removing the temporary stent valve from the vessel.

11. A method for removing a valve from a bodily vessel, the method comprising the steps of:

introducing an first apparatus into a vessel to position a temporary stent valve;

positioning a temporary stent valve within the vessel using the first apparatus;

introducing an umbrella device within the vessel to excise a vessel valve;

positioning the umbrella device within an aperture within the valve;

excising the valve using the umbrella device;

withdrawing the umbrella device with the excised valve contained therein from the vessel;

introducing a second apparatus into a vessel to position a permanent stent valve;

positioning a permanent stent valve at or near the position of the excised valve using the second apparatus; and

withdrawing the second apparatus from the vessel.

12. The method of claim 11, wherein the first apparatus and the second apparatus comprise a catheter.

13. The method of claim 12, wherein the catheter comprises a wall defining a lumen therethrough.

14. The method of claim 13, wherein the catheter further comprises a wire positioned within at least part of the lumen of the catheter, wherein the wire is operable to position the temporary stent valve or the permanent stent valve within the vessel.

15. The method of claim 11, wherein the first apparatus and the second apparatus comprise the same apparatus.

16. The method of claim 11, wherein the first apparatus and the second apparatus comprise an umbrella device.

17. The method of claim 11, wherein the umbrella device comprises:

a shaft catheter having a distal end and a proximal end;

a first umbrella comprising a first mesh and a first cauterizing mechanism coupled to a circumferential edge of the first umbrella, the first umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter;

a second umbrella comprising a second mesh and a second cauterizing mechanism coupled to a circumferential edge of the second umbrella, the second umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter, wherein the second umbrella is positioned along the shaft catheter proximally to the first umbrella; and

a mechanical drill comprising at least one blade, the mechanical drill rotatably coupled to the shaft catheter and positioned between the first umbrella and the second umbrella.

18. The method of claim 17, wherein the step of positioning the umbrella device within an aperture within the valve comprises the step of deploying the first umbrella on a first side of the valve, wherein the deployed first umbrella engages the valve at the first side of the valve, and further comprises the step of deploying the second umbrella on a second side of the valve, wherein the deployed second umbrella engages the valve at the second side of the valve.

19. The method of claim 17, wherein the step of excising the valve using the umbrella device comprises the step of cauterizing the valve using the first cauterizing mechanism and the second cauterizing mechanism simultaneously to excise the valve, and further comprises the step of operating the mechanical drill to grind the valve.

20. The method of claim 11, further comprising the step of removing the temporary stent valve from the vessel.

21. The method of claim 20, wherein the step of removing the temporary stent valve is performed using the second apparatus.

22. The method of claim 20, wherein the step of removing the temporary stent valve is performed using the umbrella device.

23. A method for removing a valve from a bodily vessel, the method comprising the steps of:

introducing an umbrella device into a vessel, the umbrella device comprising;

a first umbrella comprising a first mesh and a first cauterizing mechanism coupled to a circumferential edge of the first umbrella, the first umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter;

a second umbrella comprising a second mesh and a second cauterizing mechanism coupled to a circumferential edge of the second umbrella, the second umbrella coupled to the shaft catheter at or near the distal end of the shaft catheter, wherein the second umbrella is positioned along the shaft catheter proximally to the first umbrella; and

a mechanical drill comprising at least one blade, the mechanical drill rotatably coupled to the shaft catheter and positioned between the first umbrella and the second umbrella;

positioning a temporary stent valve within the vessel;

positioning the umbrella device within an aperture within the valve;

deploying the first umbrella on a first side of the valve, wherein the deployed first umbrella engages the valve at the first side of the valve;

deploying the second umbrella on a second side of the valve, wherein the deployed second umbrella engages the valve at the second side of the valve;

cauterizing the valve using the first cauterizing mechanism and the second cauterizing mechanism to excise the valve from the vessel;

operating the mechanical drill to grind the excised valve;

collapsing the first umbrella and the second umbrella to facilitate withdrawal of the umbrella device containing the excised valve from the vessel;

withdrawing the umbrella device containing the excised valve from the vessel;

positioning a permanent stent valve at or near the position of the excised valve; and

removing the temporary stent valve from the vessel.

24. The method of claim 23, wherein the step of positioning a temporary stent valve within the vessel is performed using a catheter.

25. The method of claim 23, wherein the step of positioning a temporary stent valve within the vessel is performed using a using the umbrella device.

26. The method of claim 23, wherein the step of positioning a permanent stent valve at or near the position of the excised valve is performed using a catheter.

27. The method of claim 23, wherein the step of positioning a permanent stent valve at or near the position of the excised valve is performed using the umbrella device.

28. The method of claim 23, wherein the step of removing the temporary stent valve from the vessel is performed using a catheter.

29. The method of claim 23, wherein the step of removing the temporary stent valve from the vessel is performed using the umbrella device.