Contrast agent for photoacoustic imaging
US-2015290345-A1 · Oct 15, 2015 · US
Contrast composition for photoacoustic imaging and method of photoacoustic imaging using the same
US10842889B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10842889-B2 |
| Application number | US-201615171746-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2016 |
| Priority date | Jun 2, 2015 |
| Publication date | Nov 24, 2020 |
| Grant date | Nov 24, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A contrast composition for photoacoustic imaging includes a photoacoustic contrast agent and a gelling agent.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of photoacoustic imaging, the method comprising: administering a contrast composition for photoacoustic imaging comprising a photoacoustic contrast agent and a gelling agent to a site of a subject, wherein the photoacoustic contrast agent is charcoal and wherein the gelling agent is pectin or amylo pectin; between one and four weeks after administering the contrast composition including charcoal, and pectin or amylo pectin, irradiating light to the site of the subject where the contrast composition for photoacoustic imaging is administered to cause the administered charcoal to generate acoustic waves; and when the light is irradiated between one and four weeks after administering the contrast composition including charcoal, and pectin or amylo pectin, detecting the acoustic waves in a range of 1 MHz to 40 MHz generated by the administered charcoal to form an image. 2. The method of claim 1 , wherein an amount of the photoacoustic contrast agent comprised in the contrast composition is in a range of about 0.5 (w/v) % to about 15 (w/v) %. 3. The method of claim 1 , wherein an amount of the gelling agent comprised in the contrast composition is in a range of about 0.5 (w/v) % to about 15 (w/v) %. 4. The method of claim 1 , wherein a wavelength of the irradiated light is in a range of about 500 nm to 1,300 nm. 5. The method of claim 1 , wherein a viscosity of the gelling agent is about 50 cP to 300 cP. 6. The method of claim 1 , wherein the site of the subject is at least one of a region where a lesion is present, an abdominal cavity, a heart, a gastrointestinal tract, a pancreas, a gall bladder, a spleen, lymph nodes, a liver, a kidney, or an eye. 7. The method of claim 1 , wherein the contrast composition is administered in tissue or blood vessels of the subject. 8. The method of claim 1 , the contrast composition having higher durability in the site of the subject compared to a contrast composition comprising charcoal alone.
Assignees
Inventors
Classifications
- A61K49/226Primary
Solutes, emulsions, suspensions, dispersions, semi-solid forms, e.g. hydrogels · CPC title
for contrast media · CPC title
by applying light and detecting acoustic waves, i.e. photoacoustic measurements · CPC title
- A61K49/22Primary
Echographic preparations; Ultrasonic imaging preparations · CPC title
for the heart · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10842889B2 cover?
- A contrast composition for photoacoustic imaging includes a photoacoustic contrast agent and a gelling agent.
- Who is the assignee on this patent?
- Samsung Medison Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A61K49/226. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 24 2020 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).