OCR for hospital paperwork — and where it stops
OCR gets scans into text. Discharge still needs structure, coding, and a doctor’s signature. How Patient Lens uses extraction without treating OCR accuracy as the product.
Reading the page is not finishing the pack.
Most Indian discharges still start on paper or PDFs
Case sheets, referral letters, and outside films arrive as scans. OCR and document models turn those pages into text a system can file. That matters. It is also the first mile, not the last.
Extraction is not a summary
A raw dump of every lab value is not a discharge summary. The attending still has to decide course, advice, and what the TPA file should emphasise. Patient Lens drafts those sections from the file and leaves sign-off with the doctor. We do not publish a universal “≥95% OCR” claim as the product story. If a pilot needs an extraction score, measure it on that hospital’s scans.
Start with the files you already have
The 7-day pilot is built for the messy inbox: upload or scan, then a draft. Clean HIS text is a bonus, not a gate.
Frequently Asked Questions
Answers to operational, clinical, and billing questions about this topic.
QHow does Patient Lens handle low-resolution scans and multi-page case files?
Patient Lens utilizes multi-modal document vision models designed to handle rotated pages, low-contrast photocopies, and noisy mobile scans typical of Indian ward records.
QWhat happens if a handwritten clinical note is ambiguous or illegible?
When handwriting confidence falls below clinical thresholds, the model highlights the corresponding section in the review editor, prompting the human reviewer to verify the entry rather than guessing.
QWhy is basic OCR insufficient for creating hospital discharge summaries?
Basic OCR only converts image pixels into unstructured text blobs. A discharge summary requires clinical understanding: extracting relevant lab milestones, summarizing surgical procedures, and organizing diagnosis codes into NABH sections.
QHow are lab trends and diagnostic attachments extracted?
Patient Lens extracts chronological lab results (admission baseline, peak markers, discharge values) and formats them into clean comparison tables rather than copying raw tabular noise.
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