Vasculature obstruction capture device

Patent metadata

Field	Value
Publication number	US-10898216-B2
Application number	US-201816007168-A
Country	US
Kind code	B2
Filing date	Jun 13, 2018
Priority date	Jun 13, 2018
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

A device for capturing an obstruction in a vasculature can include a first elongated member, an expandable element, an invertible element, and a gap positioned between the expandable element and the invertible element sized to be placed across the obstruction. The expandable element and the invertible element can be positioned near the distal end of the first elongated member. The expandable element can expand from a collapsed delivery configuration to an expanded configuration. The invertible element can expand from a collapsed delivery configuration to an expanded configuration, and the invertible element can invert from the expanded configuration to an inverted configuration, thereby forming a pocket. The pocket can envelope at least a portion of the gap and can thereby capture an obstruction that is in the gap.

First claim

The invention claimed is:

1. A device for capturing a clot in a vasculature comprising:
a first elongated member comprising a proximal end and a distal end;
an expandable element positioned near the distal end of the first elongated member, the expandable element expandable between a collapsed delivery configuration and an expanded configuration;
an invertible element, the invertible element positioned near the distal end of the first elongated member, the invertible element expandable between a collapsed delivery configuration and an expanded configuration, the invertible element invertible between the expanded configuration and an inverted configuration; and
a clot engaging element positioned between the expandable element and the invertible element.

2. The device of claim 1 , wherein the clot engaging element is an expandable structure positioned on the first elongated member comprising a collapsed delivery configuration and an expanded configuration, wherein the clot engaging element self-expands from the collapsed delivery configuration to the expanded configuration.

3. The device of claim 2 , wherein at least a portion of the clot engaging element engages the clot in the expanded configuration and pinches the clot on movement from the expanded configuration to a clot pinching configuration.

4. The device of claim 3 , wherein at least a portion of the clot engaging element is enveloped by the invertible element when the invertible element is in the inverted configuration.

5. The device of claim 1 , further comprising a core wire and a second elongated member,
wherein a movement of the core wire in relation to the first elongated member expands the expandable element,
wherein a first movement of the first elongated member in relation to the second elongated member expands the invertible element, and
wherein a second movement of the first elongated member in relation to the second elongated member inverts the invertible element.

6. The device of claim 1 , wherein the expandable element is positioned distal the invertible element and the clot engaging element is positioned distal the invertible element and proximal the expandable element.

Assignees

• Depuy Synthes Products Inc

Inventors

• Lorenzo Juan
• Johnson Kirk

Classifications

• A61B2017/22094

  for crossing total occlusions, i.e. piercing · CPC title

• A61B2017/22051

  with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation (A61B2017/22048, A61B2017/3486 take precedence) · CPC title

• A61B2017/22038

  with a guide wire · CPC title

• A61B2017/22034

  for gripping the obstruction or the tissue part from inside · CPC title

• A61B17/221 Primary

  Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} · CPC title