Balloon atherectomy catheters with imaging
US-2015208922-A1 · Jul 30, 2015 · US
Occlusion-crossing devices, atherectomy devices, and imaging
US9345406B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9345406-B2 |
| Application number | US-201213675867-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 13, 2012 |
| Priority date | Nov 11, 2011 |
| Publication date | May 24, 2016 |
| Grant date | May 24, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
Described herein are methods for producing and identifying characteristic (“crescent shaped”) regions indicative of an atherectomy plaque within a vessel, and systems and devices adapted to take advantage of this characteristic region.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of identifying a plaque mass within a vessel, the method comprising: inserting a device into the vessel, the device applying a force on the vessel to cause the vessel wall to stretch away from the device; imaging the vessel to create an image; identifying a location and orientation of a plurality of pointed crescent-shaped structures extending radially from a substantially semi-circular central portion in the image, the substantially semi-circular central portion having a substantially rounded portion and a substantially linear portion, each pointed crescent-shaped structure extending from a junction of the substantially rounded portion and the substantially linear portion; and determining a position of the plaque mass within the vessel relative to the device based upon the identified location and orientation of the pointed crescent-shaped structures in the image. 2. The method of claim 1 , wherein imaging the vessel comprises imaging the vessel with optical coherence tomography. 3. The method of claim 1 , wherein imaging the vessel comprises imaging with an imaging sensor attached to the device. 4. The method of claim 3 , further comprising orienting the device within the vessel based on the location and orientation of the crescent-shaped structures. 5. The method of claim 4 , wherein orienting the device comprises pointing a directional cutter of the device at the position of the plaque mass. 6. The method of claim 4 , wherein orienting the device comprises directing the device based upon the relationship between markers in the image created by a portion of the device and the location and orientation of the crescent-shaped structures. 7. The method of claim 3 , further comprising rotating the imaging sensor to obtain the image. 8. The method of claim 1 , wherein identifying a location and orientation of a plurality of pointed crescent-shaped structures comprises determining which direction a tip of each crescent-shaped structure points. 9. The method of claim 8 , wherein determining a position of the plaque mass comprises identifying a location between two pointed crescent-shaped structures in which the tips of the two pointed crescent-shaped structures point towards one another.
Assignees
Inventors
Classifications
- A61B5/0066Primary
Optical coherence imaging · CPC title
with irrigation system · CPC title
Human Necessities · mapped topic
for introduction into the body, e.g. by catheters (A61B5/1459 takes precedence) · CPC title
Centering · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9345406B2 cover?
- Described herein are methods for producing and identifying characteristic (“crescent shaped”) regions indicative of an atherectomy plaque within a vessel, and systems and devices adapted to take advantage of this characteristic region.
- Who is the assignee on this patent?
- Avinger Inc
- What technology area does this patent fall under?
- Primary CPC classification A61B5/0066. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue May 24 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).