Vascular device for emboli, thrombus and foreign body removal and methods of use

• US 9,283,066 B2
• Filed: 12/16/2013
• Issued: 03/15/2016
• Est. Priority Date: 07/30/1999
• Status: Expired due to Fees

• Current Assignee: Incept LLC
• Original Assignee: Incept LLC
• Inventors: Hopkins, Leo N., Khosravi, Farhad, Salahieh, Amr, Demond, Jackson F., Lepak, Jonah, Ramee, Stephen, Krolik, Jeff A., Renati, Richard
• Primary Examiner(s): FISHBACK, ASHLEY LAUREN
• Application Number:
  US14/108,005
• Publication Number:
  US 20140100598A1
• Time in Patent Office: 820 Days
• Field of Search: 606/108, 606/110, 606/113, 606/114, 606/127, 606/194, 606/198, 606/200
• US Class Current: 1/1
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/2212 having a closed distal end, e.g. a loop
• CPC Class Codes: A61F 2/01 Filters implantable into blood vessels
• CPC Class Codes: A61F 2/0105 Open ended, i.e. legs gathered only at one side
• CPC Class Codes: A61F 2/011 Instruments for their placement or removal
• CPC Class Codes: A61F 2/012 Multiple filtering units
• CPC Class Codes: A61F 2002/018 made from tubes or sheets of material, e.g. by etching or laser-cutting
• CPC Class Codes: A61F 2230/0008 elliptical or oval
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61M 2025/09183 having tools at the distal tip
• CPC Class Codes: A61M 2025/1052 for temporarily occluding a vessel for isolating a sector
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0069 Tip not integral with tube

Abstract

Apparatus and methods are provided for use in filtering emboli from a vessel and/or performing thrombectomy and embolectomy, wherein a vascular device comprises one or more support hoops connected near a distal end of a guide wire, each support hoop having an articulation region, and a blood permeable sac affixed to the support hoop or hoops to form a mouth of the blood permeable sac. The mouth of the sac closes when the apparatus is collapsed for removal to prevent material from escaping from the sac.

Claims

1. An embolic protection filtering device, comprising:

an elongate shaft having a proximal region, a distal region, and a longitudinal axis;

a first filter affixed to the shaft adjacent the distal region, the first filter movable between a collapsed position and an expanded position;

a second filter coupled to the shaft, the second filter movable between a collapsed position and an expanded position,

wherein the first filter and the second filter in their respective expanded positions are disposed asymmetrically with respect to the longitudinal axis of the elongate shaft;

a nose assembly having a proximal end and a distal end, the nose assembly affixed to the shaft adjacent to and distal of the distal-most filter;

a delivery sheath slidably disposed over the elongate shaft, the delivery sheath having a first outer diameter, and

wherein the nose assembly has a diameter which tapers distally from a first diameter substantially equal to the first outer diameter of the delivery sheath to a second lesser diameter.

2. The embolic protection filter device of claim 1, configured such that the first filter is movable between the collapsed and expanded positions independently of the movement of the second filter between the collapsed and expanded positions.

3. The embolic protection filter device of claim 2, wherein the first filter has a proximally disposed major opening.

4. The embolic protection filter device of claim 2, wherein the second filter has a proximally disposed major opening.

5. The embolic protection filter device of claim 1, wherein the first filter is substantially disposed to one side of the elongate shaft.

6. The embolic protection filter device of claim 1, wherein the second filter is substantially disposed to one side of the elongate shaft.

7. The embolic protection filter device of claim 1, wherein the first filter and the second filter are substantially disposed to one side of the elongate shaft.

8. An embolic protection filtering device, comprising:

an elongate shaft having a proximal region and a distal region;

a first filter affixed to the shaft adjacent the distal region, the first filter movable between a collapsed position and an expanded position;

a second filter movable relative to the elongate shaft and movable between a collapsed position and an expanded position, the second filter including a fixedly attached ring slidably disposed over the elongate shaft;

a nose assembly having a proximal end and a distal end, the nose assembly affixed to the shaft proximate to and distal of the distal-most filter;

a delivery sheath slidably disposed over the elongate shaft and sized and adapted to contain the first filter and the second filter in their respective collapsed positions; and

an element adapted to displace the ring longitudinally along the elongate shaft.

9. The embolic protection filter device of claim 8, configured such that the first filter is movable between the collapsed and expanded positions independently of the movement of the second filter between the collapsed and expanded positions.

10. The embolic protection filter device of claim 9, wherein the first filter has a proximally disposed major opening.

11. The embolic protection filter device of claim 9, wherein the second filter has a proximally disposed major opening.

12. The embolic protection filter device of claim 9, wherein the first filter is substantially disposed to one side of the elongate shaft.

13. The embolic protection filter device of claim 8, wherein the second filter is substantially disposed to one side of the elongate shaft.