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US 12,551,314 B2Granted
Examination marker
AssigneeToppan Printing Co., Ltd.
InventorsJunya Tanabe, Ryohei Tode, Saeko Nomura, Tsukasa Yamazaki, Ryo Shoda, Hiroyoshi Nishiyama
Life of this patent
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Abstract
An examination marker is used in diagnostic imaging using microwaves, including a marker body to be adhered to a site to be examined. The marker body is configured to display an index used for scanning of the site to be examined and to deform in accordance with a shape of the site to be examined, and the marker body has a transmittance of 70% or higher to microwaves at a frequency of 2 GHz.
Claims2
An examination marker for use in diagnostic imaging using microwaves, comprising:
- a base film made of a polyurethane resin, the base film having a scan index, and
- a gel layer laminated on the base film, wherein
- the gel layer is made of an aliphatic hydrocarbon that has a higher transmissivity to microwaves than water does, and has shear viscosity at 30° C. of 5,000 mPa·s or more and 50,000 mPa·s or less,
- the base film has a tensile elongation at break of 130% or more, and a tensile strength at 100% elongation of 4 N/cm or less,
- the base film has a thickness of 5 μm or more and 15 μm or less;
- and
- the examination marker is configured to adhere to a human breast without wrinkles, while covering the breast entirely.
4 more elements
Dependencies are inferred from the claim text.