Weft
Reference code, on the record.
Reference code for an endovascular research concept: a synthetic arousal and wake-state monitor, kept outside the product line.
A graphite clavicle or garment-supported clasp sits within an open carrier, beside its shallow dock and enlarged vascular interface. The clasp must align with the implanted receiver in the proposed power architecture.
Weft · Research concept — hardware unvalidated.
Reference code only. No clinical product or service is offered or planned.
Discuss the recordKeep the record whole; offer nothing from it.
Weft is the July 2026 endovascular research concept: a sparse vascular sensing ribbon with a tapered receiver and a discreet external clasp, drawn for durable computer and environment access by people whose usual movement is unreliable. Its registry status is reference. The integration tree, the design record and this page stay in the repository so the record is whole; no device, clinical product or service is offered or planned from it.
- Registry status
- Reference · outside the product line
- Concept
- Endovascular sensing ribbon · external clasp
- Implemented reference
- Synthetic arousal / wake-state monitor
- Offering
- None; no clinical product or service is planned
A vascular ribbon. An everyday clasp.
Weft pairs a sparse, segmented vascular interface with a tapered implanted receiver and a discreet curved external clasp. Each part has a separate role in a continuous power and derived-data path.
Future external clasp
55 × 19 × approx. 6–7 mm
A curved external form target. The enlarged implanted ribbon, lead and receiver are schematic and not to scale; power, alignment, heat and clinical suitability remain unresolved.
Interface
A light, segmented sensing study.
Passive sensing islands connect through compliant bridges and a slender lead to the internal receiver. The enlarged vascular ribbon explains the selected branch without prescribing anatomical fit or an access procedure.
Anatomy
Process before the boundary.
The internal receiver reserves acquisition, local feature extraction and power conditioning. The external clasp supplies the proposed coupling path; it cannot move to an arbitrary garment location and retain alignment.
Care & power
Keep the daily handling outside.
An open replaceable carrier leaves the coupling window unobstructed. A broad assist tab helps removal, and a shaped dock charges the removed relay. The depicted implant depends on continuous external power.
Why the record is kept.
A registry row, a devices tree and a catalog entry are one identity (ADR-0037), so a concept the company does not pursue is kept as reference code rather than deleted. Weft is not part of the company story: Cr4dle is a non-commercial research programme now; what Cr4dle plans to offer in a later phase, behind dated gates, is collections of consented, labelled episodes recorded on the capture kit on bought sensors, the kit licence and dataset licences, each collection with a dataset card; nothing is offered for sale today. Physiology such as the arousal and wake state this code simulates is a recorded research column, never a product, and an invasive interface would need its own evidence path, specialist clinical partners and design controls before anything is said about it.
Where we are.
What comes next.
Implemented reference: a synthetic arousal and wake-state monitor over the shared runtime, retained as is. Implantable hardware, a clinically supported interface and home use were always a future partner programme; none is pursued.
A clear boundary
Minimally invasive still means invasive. A research architecture is not evidence of safety, effectiveness or clinical readiness, and reference code establishes no capability; all Weft hardware and outcomes remain unvalidated.
Recorded direction, not pursued (reference code only)
- Designed forEveryday access, on the record.
- Choose a message, use a computer or control a room through dependable intentional input, while keeping a familiar personal workspace.
- Next proofStart with a person’s daily task.
- With clinical partners, establish useful control, setup burden and interruption behavior. Evaluate the selected vascular route against less invasive access options.
- Research horizonAccess that lasts beyond a session.
- Research years of stable control, minimal recalibration and independent home use. Core functions and portable personal context should survive a service outage or a hardware change.
See the wider picture.
The kit families, the research tiers and the reference designs each have their own evidence path.