CaseLink is a closed community where only credential-verified doctors share and discuss clinical cases — a SaaS platform for doctors with around 10,000 registered members covering every specialty.
A space of trusted doctors only, protection of patient information, structured clinical presentation and accumulated knowledge — a platform meeting all four axes a doctor community needs, built in-house from scratch in 6 months. This is the story of that launch.
They operate a platform for sharing and discussing clinical cases, open only to doctors whose credentials have been verified. Doctors post cases in structured, de-identified form and other specialists advise in threads, so everything from consulting on a difficult case to accumulating clinical knowledge happens in one trusted place.
Connecting knowledge that is limited within one hospital to specialists across the country is the core of the business. Unlike a general social network, invitation and review assure the trustworthiness of participants, read-tracking stops discussion being lost, and the system itself protects patient information — a closed professional network for clinicians.
None of these were questions of technology choice; they were business requirements tied directly to trust, compliance, expertise and the accumulation of knowledge. Building from scratch demanded a design that satisfies all of them at once.
If participants' credentials cannot be verified, the very trustworthiness of the discussion collapses. Where you cannot tell who is advising, no clinical decision can be entrusted.
Without anonymisation built into the system, case sharing becomes Personal-data and compliance risk. A design that relies on the goodwill of posters alone will fail.
Leaving chief complaint through examination to free text means cases cannot be compared or searchedDiscussion never deepens, and what accumulates never becomes an asset.
Get the design of threads and read-tracking wrong and Valuable knowledge washes away. You lose track of who has read what and where the discussion stalled.
Credential verification, structured cases, privacy protection and the discussion platform — the four areas essential to trustworthy case discussion, all built in-house from scratch. Together with the client we delivered a design where doctors can consult on difficult cases with confidence and accumulate clinical knowledge while protecting patient information.
Design a mechanism that reliably verifies medical credentials under an invitation-only model.
Invitation, identity check and review of credentials and affiliation earn the verification badge
A closed design assures the trustworthiness of everyone taking part.
Clinical presentations need to accumulate in a form that can be compared and searched.
Diagnosis, age, sex, chief complaint, history, examination and images stored in a structured form
Cases can be compared and searched, giving discussion a base to deepen on.
A mechanism that reliably strips identifying patient information is needed.
An anonymisation guide at posting time and automatic masking of attached images
Cases can be shared while the system protects patient information.
Specialist discussion needs to be tracked without anything being lost.
Threaded comments, read-tracking and asynchronous notification
Discussion made visible and turned into an asset, so knowledge is not washed away.
Ruby on Rails
Devise + OAuth + JWT
PPundit
SSidekiq
MySQL
AWS S3 (ActiveStorage)
KKaminari
This foundation continuously produces business outcomes — better diagnosis, a space where sharing feels safe and a growing body of knowledge — rather than technical metrics.
Because only verified doctors take part, the advice gathered can be trusted for clinical decisions.
Anonymisation and automatic masking make it possible to share cases while staying compliant.
Structure and read-tracking keep discussion from washing away, so it can be reused as an asset.
Specialists across the country reply in threads, so difficult cases move quickly.
Difficult cases tend to be carried alone on in-house knowledge.
Structured consultation with specialists nationwide.
Diagnosis and treatment decisions improve
On a general social network, neither credentials nor truth can be confirmed.
Professional discussion happens only with verified doctors.
Knowledge can be shared with confidence
Sharing cases easily becomes a personal-data risk.
Sharing with anonymisation guaranteed by the system.
Learning while staying compliant
Assuring the trustworthiness of participants and stopping knowledge from scattering are the usual problems.
Verification and read-tracking deliver trust and accumulation together.
The value of the community keeps rising
A case feed filtered by specialty → structured clinical fields in detail → threaded comments with verification badges, read counts and posting.
Launch demoA structured form from chief complaint to physical findings, attachments and publish/draft status, with live preview and a reminder to anonymise patient information.
Launch demoVerified profiles of credentials and career, with a verification badge, review status and a directory of verified doctors filterable by specialty.
Launch demo