Extract data from consent forms
Unstract reads consent to treatment, surgical and anesthesia consent forms signed on paper or tablet printouts and scanned into the chart, checks each one for its signatures, procedure, date and time, and sends the consent record to your EHR or release-of-information system.
signed in pre-op bay 4 - witness?
PERI-CON-04 (REV 2026/03) · PAGE 1 OF 2
{ "patient": "Lindqvist, Tomas", "date_of_birth": "04/17/1958", "mrn": "HCM-00562817", "procedure": "Total knee replacement", "side": "Left", "surgeon": "Dr. Naomi Ferrante", "anesthesia": "Spinal", "patient_signed": "11/03/2026 06:48", "witness_signed": false, "confidence": 0.92}
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Consents reach the chart from the pre-op bay, the clinic and the tablet
Patients sign in the surgeon's office, in pre-op, at the bedside or on a tablet that prints a copy. Each copy is scanned into the chart, often inside a packet with the history and physical.
A tablet printout, scanned after the case, with a thin signature
The surgeon struck out the side, rewrote it and initialed the change
The hospital's form, a surgery center's form and the anesthesia group's form
History and physical, surgical, anesthesia and blood consents in one scan
The quarter's audit sample, case by case, waiting for each consent
Records and compliance staff open each scanned chart to find the consent and look for every signature, date and time by eye, so a blank witness line surfaces at audit or in a records request, long after the case.
Unstract finds each consent in the scan, reads the procedure, side, signers and times, flags any blank line, and sends the consent record to your EHR or release-of-information system.
Read the consent, check every signature line, file the record
LLMWhisperer reads the signed form, Document Studio returns the consent record with its checks, and Flow files it against the chart. A records team can begin with one product and one quarter's audit sample.
Surgical consent form OCR that keeps each signature line with its label
On a consent, the weight sits in a few marks: which side is ticked, which anesthesia type, whether the blood products box says yes, and which of the three signature lines carries ink. LLMWhisperer keeps the layout, so the witness line stays separate from the patient's and the physician's, and an empty line comes back as empty. It reads the surgeon's handwritten procedure beside the printed labels, reports filled and unfilled checkboxes, and handles tablet printouts that were scanned at low contrast.
Pass the text to your own LLM, or make it the first step of a consent review run.
Learn more about LLMWhispererTurn each consent form into one record with its gaps marked
Describe the consent record once: patient and identifiers, procedure as written, side or site, surgeon, anesthesia type, risks discussed, blood products, interpreter, and each signer with a date and time. Informed consent form data extraction then fills that same JSON from the hospital's form, a surgery center's form or the anesthesia group's form. Your checks travel with the record: the patient, witness and physician lines each carry a signature, every signature has a date and time, and the procedure and side are filled in.
Deploy it as an API that your EHR integration calls for each scan, or as an ETL pipeline over the folder where scanned charts land.
Learn more about Document StudioRun consents through referral and patient intake into the chart
Describe your consent forms, and the pre-op packets they arrive in, in plain language, and Flow's agents build the workflow from that description. You approve it, and each scan then follows the same path: picked up from the scanning queue, the fax line or the tablet export, split into its forms, read, matched to the patient's chart, checked, and filed in your EHR or release-of-information system.
An uncertain patient match or a blank signature, date or time stops for a person, with the reason attached. Unstract checks that the form is complete. Your clinicians and your policy decide whether the consent is valid.
Learn more about FlowRead a quarter of consents today. Plan the chart run with us.
Start for free and extract a folder of scanned consents. A run that files consent records in your EHR or release-of-information system starts with a consultation.
Treatment, surgical and anesthesia consents, and the packets they ride in
Documents
- Consent to treatment forms
- Informed consent forms for procedures
- Surgical consent forms
- Anesthesia consent forms
- Blood transfusion consent forms
- Sedation consent forms
- Consents printed from signing tablets
- Interpreter attestations
- Consent revisions and addenda
- Refusal of treatment forms
- Pre-op packets with history and physical
- Surgery center consent forms
Fields captured
Built for the people who answer for the signed consent
Consents indexed in the chart by procedure and date, so a request that asks for them is filled without paging through a 40-page scan.
An audit sample checked in full, with each blank signature, date or time listed by unit and surgeon instead of found one chart at a time.
Consent copies that come with the procedure, signers and times already indexed, so a follow-up request for a missing page is rarer.
One consent record across hospitals, surgery centers and clinics, whichever form or tablet printout each unit uses.
Fewer charts opened by hand, fewer gaps found late
Signed consents stay legal records, under your control
A signed consent is a legal record that carries PHI. It names the patient, the procedure, the surgeon and the risks discussed, and it is the page a court, a payer or a patient asks for when a case goes wrong. A lost or altered copy weakens your defence and exposes the patient.
- Encrypted in transit and at rest.
- Consent forms and the charts they sit in are never used to train models.
- Access by role, facility and unit, with every correction to a consent record logged against the chart.
- Processed scans are deleted on the retention schedule your health system sets.
- Self-hosted deployment for health systems that keep PHI on their own network.
What records and compliance teams ask about consent forms
Point Unstract at the scans for your audit sample. Each consent comes back as a record showing whether the patient, witness and physician lines carry a signature with a date and time, and every blank line is listed by case. Your reviewers look only at the flagged charts.
Yes, when the tablet copy is printed or exported as a PDF. Consent to treatment form OCR with LLMWhisperer reads the printed fields and the signature block on the page, including faint scans of thermal or low-contrast printouts.
Yes. Flow splits a scanned chart or pre-op packet into its forms, names each consent by type, and indexes it by procedure and date. A records request for the consent then points at the right pages.
No. Unstract checks that the form is complete: the signatures, the procedure, the side and the dates and times are filled in. Your clinicians and your policy decide whether the consent is valid.
Yes. Anesthesia consent form data extraction uses its own schema, with the anesthesia type, the provider and the risks discussed, and runs in the same pass as the surgical consent from the same packet.
Yes. The procedure field returns the handwritten wording, abbreviations and side included, and a struck-out and initialed change comes back with the change noted. Nothing is rewritten into a code.
Yes. Each yes or no box comes back as its own field, ticked or not, so a consent where both blood products boxes are blank is flagged rather than read as a no.
The record waits in a review queue. A reviewer sees the field next to the spot on the scan it came from, confirms or corrects it, and the change is logged. Clear consents go straight through.
Yes. POST a scanned consent to the endpoint for that form type and the consent record comes back as JSON, with blank or unclear fields marked for review.
Unstract is SOC 2, ISO 27001, GDPR and HIPAA compliant. Consents are encrypted in transit and at rest, never used to train models, and deleted on your retention schedule. Hospitals that keep consents on their own network can self-host. The Trust Center lists the controls.
An HIM or compliance lead starts for free and uploads a few scanned consents the same day. For a full consent run into the chart, we build it with your HIM and IT teams in a consultation, around your forms and your EHR or release-of-information system.
Bring last quarter's consent audit sample to the consultation
Hospital forms, surgery center forms and tablet printouts. We read them in the session and list each consent with a blank signature, date or time.