US Patent

US8406860 — Method for evaluating blush in myocardial tissue

Method of Use · Assigned to Novadaq Technologies ULC · Expires 2029-04-09 · 3y remaining

Vulnerability score 75/100 Vulnerable — likely target for IPR or design-around

What this patent protects

This patent protects a method for evaluating the amount of blood flow in heart tissue by analyzing fluorescence signals from images.

USPTO Abstract

Vessel perfusion and myocardial blush are determined by analyzing fluorescence signals obtained in a static region-of-interest (ROI) in a collection of fluorescence images of myocardial tissue. The blush value is determined from the total intensity of the intensity values of image elements located within the smallest contiguous range of image intensity values containing a predefined fraction of a total measured image intensity of all image elements within the ROI. Vessel (arterial) peak intensity is determined from image elements located within the ROI that have the smallest contiguous range of highest measured image intensity values and contain a predefined fraction of a total measured image intensity of all image elements within the ROI. Cardiac function can be established by comparing the time differential between the time of peak intensity in a blood vessel and that in a region of neighboring myocardial tissue both pre and post procedure.

Drugs covered by this patent

FDA Patent Use Codes

When a patent is method-of-use, FDA lists it once per applicable indication ("U-code"). Each U-code carves out a specific therapeutic use that generic filers must either license or design around.

CodeDescriptionDrug
U-2463 — Spy Agent Green Kit

Patent Metadata

Patent number
US8406860
Jurisdiction
US
Classification
Method of Use
Expires
2029-04-09
Drug substance claim
No
Drug product claim
No
Assignee
Novadaq Technologies ULC
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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