Recording dose data from drug injection devices using optical character recognition (OCR)
First Claim
1. A method of recording a medicament dose using a data collection device, comprising:
- capturing, by a video camera of the data collection device, a video showing a medicament dose indicator of an injector pen;
adjusting a scale of an image in said video;
adjusting, using a processing arrangement, said image for skew of one or more characters displayed on a component of the injector pen in said video;
determining a position of at least one of said one or more characters in the image;
identifying the at least one character using optical character recognition software; and
determining a medicament dose indicated by the medicament dose indicator based on a result of said optical character recognition software, wherein the injector pen comprises a movable component for selecting said medicament dose to be dispensed.
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Accused Products
Abstract
A method of recording a medicament dose using a data collection device comprises capturing, by a video camera of said data collection device, a video showing a medicament dose indicator of a medicament delivery device, adjusting a scale of an image of said medicament dose indicator in said video, adjusting said image for skew of one or more characters displayed on a component of the medicament delivery device in said video, determining the position of at least one of said one or more characters in the image, identifying the at least one character using optical character recognition and determining a medicament dose shown by the medicament dose indicator based on a result of said optical character recognition. The method may include determining whether more than one delivery of medicament is recorded in the video and, if so, whether said more than one delivery includes one or more prime shots, so that an overall dosage delivered to a user may be determined based on multiple determined medicament doses. A wearable electronic device comprising a video camera may be used to obtain and analyze the video, for example, using software provided in an “app”. The wearable electronic device may be configured to be worn on the head of a user, to capture the video from the user'"'"'s point of view.
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Citations
15 Claims
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1. A method of recording a medicament dose using a data collection device, comprising:
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capturing, by a video camera of the data collection device, a video showing a medicament dose indicator of an injector pen; adjusting a scale of an image in said video; adjusting, using a processing arrangement, said image for skew of one or more characters displayed on a component of the injector pen in said video; determining a position of at least one of said one or more characters in the image; identifying the at least one character using optical character recognition software; and determining a medicament dose indicated by the medicament dose indicator based on a result of said optical character recognition software, wherein the injector pen comprises a movable component for selecting said medicament dose to be dispensed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A data collection apparatus for recording a medicament dose, the data collection apparatus comprising:
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a video camera; and a processing arrangement configured to; capture a video using said video camera, said video including at least one image of a medicament dosage indicator of an injector pen; adjust a scale of said image; adjust said image for skew of one or more characters displayed on a component of the injector pen; determine a position of at least one of said one or more characters in the image; identify the at least one character using optical character recognition software; and determine a medicament dose indicated by said medicament dose indicator based on a result of said optical character recognition software, wherein the injector pen comprises a movable component for selecting said medicament dose to be dispensed. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification