Embolic basket

• US 20060100663A1
• Filed: 12/22/2005
• Published: 05/11/2006
• Est. Priority Date: 12/23/1999
• Status: Abandoned Application

• Current Assignee: Christopher T. Shen, Olin Palmer
• Original Assignee: Christopher T. Shen, Olin Palmer
• Inventors: Shen, Christopher T., Palmer, Olin
• Application Number:
  US11/317,930
• Publication Number:
  US 20060100663A1
• Time in Patent Office: Days
• 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 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61F 2/013 Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
• CPC Class Codes: A61F 2002/016 made from wire-like elements
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0097 Harpoon-shaped
• CPC Class Codes: A61M 29/00 Dilators with or without means for introducing media, e.g. remedies instruments for performing visual medical inspections of cavities or tubes of the body A61B1/00

Abstract

An intravascular basket device for use in capturing either naturally occurring or foreign debris found in blood vessels or other regions of the body. The basket device is fabricated from a tube and includes a mid-section having at least one ring configured in an alternating V-pattern. The basket device specifically embodies structure that provides enhanced radial opening and angular resistance to collapse.

Claims

1-37. -37. (canceled)

38. A medical device for treating vasculature of a patient, comprising:

an elongate member, the elongate member having a first end portion and a second end portion and including a portion which tapers from a first transverse dimension to a second transverse dimension; and

a filter body, the filter body attached to the second end portion of the elongate member.

39. The device of claim 38, wherein the elongate member tapers in a direction from the first end portion to the second end portion.

40. The device of claim 38, wherein the elongate member includes a tapered portion, the tapered portion characterized by a gradual taper.

41. The device of claim 38, wherein the elongate member includes a tapered portion, the tapered portion characterized by a step-taper.

42. The device of claim 38, wherein the elongate member includes a tapered portion, the tapered portion characterized by a non-linear taper.

43. The device of claim 38, wherein the elongate member includes a tapered portion, the tapered portion characterized by a parabolic taper.

44. The device of claim 38, wherein the filter body includes a tab.

45. The device of claim 44, further comprising a coil attaching the tab to the elongate member.

46. The device of claim 44, further comprising a first coil and a second coil each attaching the tab to the elongate member.

47. The device of claim 46, wherein the first coil is formed from 304V stainless steel.

48. The device of claim 47, when the second coil is formed from a platinum alloy.

49. The device of claim 48, wherein the first and second coils are positioned longitudinally adjacent each other.

50. The device of claim 38, wherein the filter body includes a distal tip portion.

51. The device of claim 50, wherein the distal tip portion includes an inner coil and an outer coil.

52. The device of claim 51, wherein the inner and outer coils are coaxially arranged.

53. The device of claim 52, wherein the inner coil is formed from nitinol and the outer coil is formed from a platinum alloy.

54. The device of claim 53, wherein the inner and outer coils have different longitudinal dimensions.

55. The device of claim 52, wherein the distal tip portion includes a rounded terminal end formed from a soldered joint.