Mechanical Embolectomy Device and Method

• US 20100137899A1
• Filed: 12/02/2008
• Published: 06/03/2010
• Est. Priority Date: 12/02/2008
• Status: Abandoned Application

• Current Assignee: Nasser Razack
• Original Assignee: Nasser Razack
• Inventors: Razack, Nasser
• Application Number:
  US12/326,459
• Publication Number:
  US 20100137899A1
• Time in Patent Office: Days
• US Class Current: 606/200
• CPC Class Codes: A61M 2025/0042 Microcatheters, cannula or the like having outside diameters around 1 mm or less
• CPC Class Codes: A61M 2025/105 having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

An embolectomy device includes a proximal elongated shaft positionable and movable within a catheter, the proximal elongated shaft having a distal end. A distal elongated shaft positionable and movable with a catheter, the distal elongated shaft having a proximal end. An expander portion comprising a body having proximal and distal ends. The proximal end of the body extending from the distal end of the proximal elongated shaft and the proximal end of the distal elongated shaft extending from the distal end of the body of the expander portion. The body being biased to expand laterally outward from an axis of the embolectomy device. The body is shaped as an spheroid when expanded laterally outward.

Claims

1. An embolectomy device, comprising:

a proximal elongated shaft positionable and movable within a catheter, said proximal elongated shaft having a distal end;

a distal elongated shaft positionable and movable with a catheter, said distal elongated shaft having a proximal end;

an expander portion comprising a body having proximal and distal ends, said proximal end of said body extending from said distal end of said proximal elongated shaft and said proximal end of said distal elongated shaft extending from said distal end of said body of said expander portion;

wherein said body being biased to expand laterally outward from an axis of the embolectomy device; and

wherein said body is shaped as an spheroid when expanded laterally outward.

2. The embolectomy device of claim 1, wherein:

said proximal end of said body of said expander portion extends proximally along said proximal elongated shaft; and

said distal end of said body of said expander portion extends distally along said distal elongated shaft.

3. The embolectomy device of claim 2, further comprising:

a first band securing said proximal end of said body of said expander portion to said proximal elongated shaft; and

a second band securing said distal end of said body of said expander portion to said distal elongated shaft.

4. The embolectomy device of claim 3, wherein:

said first band and said second band are radio opaque.

5. The embolectomy device of claim 1, further comprising:

a pair of radio opaque markers, one located at each of said proximal end and said distal end of said expander portion.

7. The embolectomy device of claim 1, wherein said body of said expander portion is an elongated pointed prolate spheroid.

8. The embolectomy device of claim 1, wherein said body of said expander portion is a prolate spheroid.

9. An embolectomy device, comprising:

an elongated shaft positionable and movable within a catheter, said elongated shaft having a distal end;

an expander portion comprising a body having proximal and distal ends;

said elongated shaft extending through said body of said expander portion with said proximal end and said distal end of said body of said expander portion being attached to said elongated shaft at a spaced distance along said elongated shaft;

wherein said body being biased to expand laterally outward from an axis of the embolectomy device; and

wherein said body is shaped as an spheroid when expanded laterally outward.

10. The embolectomy device of claim 9, wherein:

said proximal end of said body of said expander portion extends proximally along said elongated shaft; and

said distal end of said body of said expander portion extends distally along said elongated shaft.

11. The embolectomy device of claim 10, further comprising:

a first band securing said proximal end of said body of said expander portion to said elongated shaft; and

a second band securing said distal end of said body of said expander portion to said elongated shaft.

12. The embolectomy device of claim 11, wherein:

said first band and said second band are radio opaque.

13. The embolectomy device of claim 9, further comprising:

a pair of radio opaque markers, one located at each of said proximal end and said distal end of said expander portion.

14. The embolectomy device of claim 9, wherein said body of said expander portion is an elongated pointed prolate spheroid.

15. The embolectomy device of claim 9, wherein said body of said expander portion is a prolate spheroid.

16. A method of performing an embolectomy, comprising the steps of:

providing an embolectomy device comprising a proximal elongated shaft positionable and movable within a catheter, said proximal elongated shaft having a distal end, a distal elongated shaft positionable and movable with a catheter, said distal elongated shaft having a proximal end, an expander portion comprising a body having proximal and distal ends, said proximal end of said body extending from said distal end of said proximal elongated shaft and said proximal end of said distal elongated shaft extending from said distal end of said body of said expander portion, wherein said body being biased to expand laterally outward from an axis of the embolectomy device, and wherein said body is shaped as an spheroid when expanded laterally outward manipulating the embolectomy device within a catheter to position the body across an occlusion in a body canal;

expanding the body to move the occlusion toward the body canal, thereby creating a lumen within the canal;

retracting the body; and

removing the catheter and expander portion from the body canal leaving the lumen open.