Devices, systems, and methods for valve removal

Patent metadata

Field	Value
Publication number	US-9504486-B2
Application number	US-201414196199-A
Country	US
Kind code	B2
Filing date	Mar 4, 2014
Priority date	Apr 19, 2010
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

Devices, systems, and methods for valve removal. In an embodiment of an umbrella device for removing a valve of the present disclosure, the umbrella device comprises an elongated shaft having a distal end, a first umbrella comprising a first mesh, the first umbrella coupled to the shaft at or near the distal end of the shaft, a second umbrella comprising a second mesh, the second umbrella coupled to the shaft proximal to the first umbrella, and a mechanical drill rotatably coupled to the shaft and positioned between the first umbrella and the second umbrella.

First claim

The invention claimed is:

1. An umbrella device for removing a valve the umbrella device comprising:
an elongated shaft having a distal end;
a first umbrella comprising a first mesh, the first umbrella coupled to the shaft at or near the distal end of the shaft;
a second umbrella comprising a second mesh, the second umbrella coupled to the shaft proximal to the first umbrella; and
a mechanical drill rotatably coupled to the shaft and positioned between the first umbrella and the second umbrella; and
at least one electrical coil positioned along portions of the shaft at or near the first umbrella and the second umbrella, wherein the at least one electrical coil is/are independently operable to generate a magnetic force upon introduction of a current to said at least one electrical coil.

2. The umbrella device of claim 1 , wherein the shaft further comprises a wall defining a lumen therethrough.

3. The umbrella device of claim 2 , further comprising a wire positioned within at least part of the lumen of the shaft, the wire operable to position a stent valve within a vessel.

4. The umbrella device of claim 1 , wherein the first umbrella and the second umbrella are capable of mechanical expansion and contraction.

5. The umbrella device of claim 1 , wherein the current is introduced from a current source, the current source operably coupled to each of the at least one electrical coil.

6. The umbrella device of claim 1 , wherein the first mesh and the second mesh define mesh apertures having an opening large enough to allow blood to pass therethrough but small enough to prevent ground valve from passing therethrough.

7. The umbrella device of claim 1 , wherein the first mesh and the second mesh define mesh apertures having their largest cross-dimension no larger than about 100 μm in diameter.

8. The umbrella device of claim 1 , wherein the first mesh and the second mesh comprise mesh material selected from the group consisting of stainless steel, microexpandable metal, polytetrafluoroethylene coated stainless steel, and polyethylene terephthalate coated stainless steel.

9. The umbrella device of claim 1 , wherein the second umbrella comprises a cauterizing mechanism coupled to a circumferential edge of the second umbrella, wherein the cauterizing mechanism comprises a cauterizing wire capable of increasing in temperature from the introduction of a current to said cauterizing wire.

10. The umbrella device of claim 1 , further comprising an electrical source coupled to the mechanical drill, the electrical source operable to start and stop operation of the mechanical drill.

11. The umbrella device of claim 1 , wherein the mechanical drill is operable via operation of a suction source coupled thereto, the suction source operable to start and stop the mechanical drill.

12. The umbrella device of claim 1 , wherein the umbrella device is operable to be introduced into a vessel, engage a valve, and remove said valve.

13. The umbrella device of claim 1 , forming part of a system for removing a valve from a vessel, the system further comprising:
at least one mechanism capable of expanding and contracting the first umbrella and the second umbrella.

14. The umbrella device of claim 13 , wherein the at least one mechanism comprises at least one rib slidingly coupled to the shaft, wherein the at least one rib may be moved along the shaft toward the distal end and toward the proximal end to mechanically expand and contract the first umbrella and the second umbrella.

15. The umbrella device of claim 13 , wherein the at least one mechanism comprises at least one electromechanical mechanism operable to electromechanically expand and contract the first umbrella and the second umbrella.

16. An umbrella device for removing a valve the umbrella device comprising:
an elongated shaft having a distal end;
a first umbrella comprising a first mesh, the first umbrella coupled to the shaft at or near the distal end of the shaft;
a second umbrella comprising a second mesh, the second umbrella coupled to the shaft proximal to the first umbrella; and
a mechanical drill rotatably coupled to the shaft and positioned between the first umbrella and the second umbrella;
wherein at least one of the first umbrella and/or the second umbrella comprises a cauterizing mechanism coupled to a circumferential edge of the first umbrella and/or the second umbrella, wherein the cauterizing mechanism comprises a cauterizing wire capable of increasing in temperature from the introduction of a current to said cauterizing wire.

17. The umbrella device of claim 16 , wherein the shaft further comprises a wall defining a lumen therethrough, and wherein the device further comprises a wire positioned within at least part of the lumen of the shaft, the wire operable to position a stent valve within a vessel.

18. A method for removing a valve from a vessel, the method comprising the step of:
operating an umbrella device to remove a valve within a vessel, the umbrella device comprising:
an elongated shaft having a distal end;
a first umbrella comprising a first mesh, the first umbrella coupled to the shaft at or near the distal end of the shaft;
a second umbrella comprising a second mesh, the second umbrella coupled to the shaft proximal to the first umbrella; and
a mechanical drill rotatably coupled to the shaft and positioned between the first umbrella and the second umbrella;
wherein at least one of the first umbrella and/or the second umbrella comprises a cauterizing mechanism coupled to a circumferential edge of the first umbrella and/or the second umbrella, wherein the cauterizing mechanism comprises a cauterizing wire capable of increasing in temperature from the introduction of a current to said cauterizing wire; and

operating the cauterizing mechanism to cauterize the valve.

19. The method of claim 18 , wherein the step of operating comprises the steps of:
deploying the first umbrella on a first side of the valve;
deploying the second umbrella on a second side of the valve; and
operating the mechanical drill to grind the valve.

20. The method of claim 19 , further comprising the steps of:
collapsing the first umbrella and the second umbrella; and
withdrawing the umbrella device from the vessel.

Assignees

• Cvdevices Llc

Inventors

• Kassab Ghassan S

Classifications

• A61B2017/320775

  Morcellators, impeller or propeller like means · CPC title

• A61B2017/22098

  Decalcification of valves · CPC title

• A61B17/320758 Primary

  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 title

• A61B2017/320716

  comprising means for preventing embolism by dislodged material · CPC title

• A61B2017/22097

  Valve removal in veins · CPC title