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US 7,235,088 B2Granted
Neuro thrombectomy catheter
Assigneeev3 Endovascular, Inc.
InventorsRafael Pintor, Bradley Steven Culbert, Harold Alexander Heitzmann, Bruce D. Stambaugh
Life of this patent
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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.
Claims66
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.
5 more elements
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.
5 more elements
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.
4 more elements
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.
5 more elements
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.
5 more elements
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.
5 more elements
Dependencies are inferred from the claim text.