Clot removal device

• US 7,344,550 B2
• Filed: 10/21/2003
• Issued: 03/18/2008
• Est. Priority Date: 10/21/2003
• Status: Expired due to Fees

• Current Assignee: Stryker European Operations Holdings, LLC (Stryker Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Carrison, Harold F., Farnholtz, Roger
• Primary Examiner(s): TRUONG, KEVIN THAO
• Application Number:
  US10/689,893
• Publication Number:
  US 20050085846A1
• Time in Patent Office: 1,610 Days
• Field of Search: 606/113, 606/114, 606/127, 606/159, 606/170, 606/200
• US Class Current: 606/200
• 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 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61B 2017/2215 having an open distal end

Abstract

A device for removing blood clots and methods of making and using the same. The clot pulling device may include a shaft and one or more strut members that each may include a loop region. The proximal ends of the strut members may be attached to the shaft and the distal ends of the strut members may be coupled to the shaft.

Claims

1. A medical device for removing clots from a blood vessel, comprising:

an elongate shaft having a distal end;

a first strut having a first end attached to the shaft, a first loop region, and a second end coupled to the shaft;

a second strut having a first end attached to the shaft, a second loop region, and a second end coupled to the shaft; and

wherein the first and second loop regions overlap with one another and are disposed about the shaft,

wherein the first end of the first strut is the proximal end of the first strut and the first end of the second strut is the proximal end of the second strut, wherein the proximal end of the first strut and the proximal end of the second strut are fixedly attached to the shaft.

2. The medical device of claim 1, wherein the proximal end of the first strut and the proximal end of the second strut are fixedly attached to the shaft by winding the proximal ends about the shaft.

3. The medical device of claim 1, wherein the second end of the first strut is the distal end of the first strut, wherein the distal end of the first strut is slidably disposed along the shaft.

4. The medical device of claim 3, wherein the distal end of the first strut is attached to a tubular member disposed over the shaft.

5. The medical device of claim 4, wherein the distal end of the second strut is attached to the tubular member.

6. The medical device of claim 1, further comprising a third strut having a proximal end attached to the shaft, a third loop region, and a distal end coupled to the shaft.

7. The medical device of claim 6, wherein the third loop region overlaps with the first loop region, the second loop region, or both.

8. The medical device of claim 6, wherein the distal end of the third strut is slidably disposed along the shaft.

9. The medical device of claim 1, wherein the first and second loop versions are circumferentially disposed abut the shaft.

10. A medical device for removing clots from a blood vessel, comprising:

an elongate shaft;

one or more strut members each having a first end fixedly attached to the shaft and a second end slidably attached the shaft; and

wherein each of the one or more strut members have a loop region extending circumferentially around at least a portion of the shaft and a distally-extending region adjacent the loop region and extending distally therefrom,

wherein the proximal ends of the one or more strut members are fixedly attached to the shaft by winding the proximal ends about the shaft.

11. The medical device of claim 10, wherein the loop regions of the one or more strut members circumferentially overlap.

12. The medical device of claim 10, wherein the distal ends of the one or more strut members are attached to a tubular member disposed over the shaft.