IP Library › Granted Patent US 7,235,088
Granted Patent B2
US 7,235,088 · App. 10/200,475 · Granted Jun 26, 2007

Neuro thrombectomy catheter

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Quick Facts
Patent No.
US 7,235,088
App. No.
10/200,475
Granted
Jun 26, 2007
Kind
B2
Abstract

An elongate tubular body extends between a rotatable cutter and a control. The cutter is connected to the control with a rotatable element. A vacuum is applied through an annular passage defined between the tubular body and the rotatable element. The tubular body has a sufficiently small outside diameter and sufficient kink resistance and pushability to navigate through arteries such as the internal carotid artery.

Claims (107)

1. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element;

a control on the proximal end of the body;

at least one radially inwardly extending stationary cutting member on the tubular body; and

at least one radially outwardly extending flange on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body;

wherein the rotatable tip has a diameter up to about 0.092 inches.

2. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M2 segment of the middle cerebral artery.

3. The rotational neuro thrombectomy catheter of claim 2 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M3 segment of the middle cerebral artery.

4. The rotational neuro thrombectomy catheter of claim 1 , comprising two radially outwardly extending flanges on the tip.

5. The rotational neuro thrombectomy catheter of claim 1 , comprising two stationary cutting members on the tubular body.

6. The rotational neuro thrombectomy catheter of claim 1 , further comprising an annular recess in the tubular body for rotatably receiving the radially outwardly extending flange.

7. The rotational neuro thrombectomy catheter of claim 1 , wherein the distal end of the rotatable tip is approximately axially aligned with the distal end of the tubular body.

8. The rotational neuro thrombectomy catheter of claim 1 , wherein the distal end of the rotatable tip extends beyond the distal end of the tubular body.

9. The rotational neuro thrombectomy catheter of claim 1 , wherein the rotatable tip is recessed within the tubular body.

10. The rotational neuro thrombectomy catheter of claim 1 , wherein the rotatable element comprises a torque tube.

11. The rotational neuro thrombectomy catheter of claim 10 , wherein the torque tube comprises a layer of braided wire.

12. The rotational neuro thrombectomy catheter of claim 10 , wherein the torque tube comprises a layer of coiled wire.

13. The rotational neuro thrombectomy catheter of claim 12 , wherein the coiled wire comprises metal.

14. The rotational neuro thrombectomy catheter of claim 12 , wherein the coiled wire comprises a polymer.

15. The rotational neuro thrombectomy catheter of claim 1 , comprising a central guidewire lumen extending throughout the length of the tubular body.

16. The rotational neuro thrombectomy catheter of claim 1 , comprising a monorail guidewire lumen extending throughout the length of the tubular body.

17. The rotational neuro thrombectomy catheter of claim 5 , wherein the rotatable tip further comprises a radially inwardly extending annular recess.

18. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M1 segment of the middle cerebral artery.

19. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left vertebral artery.

20. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the basilar artery.

21. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left posterior cerebral artery.

22. The rotational neuro thrombectomy catheter of claim 1 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left posterior communicating artery.

23. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element;

a control on the proximal end of the body;

at least one radially inwardly extending stationary cutting member on the tubular body; and

at least one radially outwardly extending flange on the rotatable up for cooperating with the stationary cutting member to cut material drawn into the tubular body;

wherein the rotatable tip has an axial length up to about 0.120 inches.

24. The rotational neuro thrombectomy catheter of claim 23 , wherein the rotatable tip has an axial length greater than about 0.04 inches.

25. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element, the rotatable tip having a diameter up to about 0.092 inches;

a control on the proximal end of the body;

at least one radially inwardly extending stationary cutting member on the tubular body; and

two radially outwardly extending flanges on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body.

26. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M2 segment of the middle cerebral artery.

27. The rotational neuro thrombectomy catheter of claim 26 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M3 segment of the middle cerebral artery.

28. The rotational neuro thrombectomy catheter of claim 25 , comprising two stationary cutting members on the tubular body.

29. The rotational neuro thrombectomy catheter of claim 25 , further comprising an annular recess in the tubular body for rotatably receiving the radially outwardly extending flange.

30. The rotational neuro thrombectomy catheter of claim 25 , wherein the distal end of the rotatable tip is approximately axially aligned with the distal end of the tubular body.

31. The rotational neuro thrombectomy catheter of claim 25 , wherein the distal end of the rotatable tip extends beyond the distal end of the tubular body.

32. The rotational neuro thrombectomy catheter of claim 25 , wherein the rotatable tip is recessed within the tubular body.

33. The rotational neuro thrombectomy catheter of claim 25 , wherein the rotatable element comprises a torque tube.

34. The rotational neuro thrombectomy catheter of claim 33 , wherein the torque tube comprises a layer of braided wire.

35. The rotational neuro thrombectomy catheter of claim 33 , wherein the torque tube comprises a layer of coiled wire.

36. The rotational neuro thrombectomy catheter of claim 35 , wherein the coiled wire comprises metal.

37. The rotational neuro thrombectomy catheter of claim 35 , wherein the coiled wire comprises a polymer.

38. The rotational neuro thrombectomy catheter of claim 25 , comprising a central guidewire lumen extending throughout the length of the tubular body.

39. The rotational neuro thrombectomy catheter of claim 25 , comprising a monorail guidewire lumen extending throughout the length of the tubular body.

40. The rotational neuro thrombectomy catheter of claim 28 , wherein the rotatable tip further comprises a radially inwardly extending annular recess.

41. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M1 segment of the middle cerebral artery.

42. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left vertebral artery.

43. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the basilar artery.

44. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left posterior cerebral artery.

45. The rotational neuro thrombectomy catheter of claim 25 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the right or left posterior communicating artery.

46. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element;

a control on the proximal end of the body;

at least one radially inwardly extending stationary cutting member on the tubular body; and

two radially outwardly extending flanges on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body;

wherein the rotatable tip has an axial length up to about 0.120 inches.

47. The rotational neuro thrombectomy catheter of claim 46 , wherein the rotatable tip has an axial length greater than about 0.04 inches.

48. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element;

a control on the proximal end of the body;

two radially inwardly extending stationary cutting members on the tubular body; and

at least one radially outwardly extending flange on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body;

wherein the rotatable tip has a diameter up to about 0.092 inches.

49. The rotational neuro thrombectomy catheter of claim 48 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M2 segment of the middle cerebral artery.

50. The rotational neuro thrombectomy catheter of claim 49 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M3 segment of the middle cerebral artery.

51. The rotational neuro thrombectomy catheter of claim 48 , comprising two radially outwardly extending flanges on the tip.

52. The rotational neuro thrombectomy catheter of claim 48 , further comprising an annular recess in the tubular body for rotatably receiving the radially outwardly extending flange.

53. The rotational neuro thrombectomy catheter of claim 48 , wherein the distal end of the rotatable tip is approximately axially aligned with the distal end of the tubular body.

54. The rotational neuro thrombectomy catheter of claim 48 , wherein the distal end of the rotatable tip extends beyond the distal end of the tubular body.

55. The rotational neuro thrombectomy catheter of claim 48 , wherein the rotatable tip is recessed within the tubular body.

56. The rotational neuro thrombectomy catheter of claim 48 , wherein the rotatable element comprises a torque tube.

57. The rotational neuro thrombectomy catheter of claim 56 , wherein the torque tube comprises a layer of braided wire.

58. The rotational neuro thrombectomy catheter of claim 56 , wherein the torque tube comprises a layer of coiled wire.

59. The rotational neuro thrombectomy catheter of claim 58 , wherein the coiled wire comprises metal.

60. The rotational neuro thrombectomy catheter of claim 58 , wherein the coiled wire comprises a polymer.

61. The rotational neuro thrombectomy catheter of claim 48 , comprising a central guidewire lumen extending throughout the length of the tubular body.

62. The rotational neuro thrombectomy catheter of claim 48 , comprising a monorail guidewire lumen extending throughout the length of the tubular body.

63. The rotational neuro thrombectomy catheter of claim 48 , wherein the rotatable tip further comprises a radially inwardly extending annular recess.

64. The rotational neuro thrombectomy catheter of claim 48 , wherein the outside diameter of the distal segment of the tubular body is small enough to access the M1 segment of the middle cerebral artery.

65. A rotational neuro thrombectomy catheter, comprising:

an elongate flexible tubular body, having a proximal end and a distal end, the tubular body having a distal segment with an outside diameter small enough to access vessels having a lumen diameter of less than about 3 mm;

a rotatable element extending through the body;

a rotatable tip at the distal end of the body and connected to the rotatable element;

a control on the proximal end of the body;

two radially inwardly extending stationary cutting members on the tubular body; and

at least one radially outwardly extending flange on the rotatable tip for cooperating with the stationary cutting member to cut material drawn into the tubular body;

wherein the rotatable tip has an axial length up to about 0.120 inches.

66. The rotational neuro thrombectomy catheter of claim 65 , wherein the rotatable tip has an axial length greater than about 0.04 inches.

Assignments (1)
CHANGE OF NAME Recorded Dec 5, 2012
From: TYCO HEALTHCARE GROUP LP
To: COVIDIEN LP
Reel/Frame 029414/0550 →