# Synchron **Domain:** Endovascular Brain-Computer Interfaces / Clinical Neurotechnology **Doc Type:** Company and Platform Node **Maturity:** Clinical-stage **Primary Sources:** [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]]; [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] ## Definition **Synchron** is a brain-computer-interface company developing the **Stentrode**, an electrode array delivered through the vascular system and deployed in a cerebral venous structure near motor cortex. It represents an endovascular access geometry: lower procedural burden and lower channel count than penetrating intracortical arrays, with the tradeoff of recording through vessel tissue. ## Platform role The Stentrode is paired with implanted and external components that relay recorded motor signals to decoding software. The cluster treats Synchron as a counter-geometry to [[wiki/Neuralink|Neuralink]]: it tests whether useful, stable neural control can be achieved without open-brain insertion of penetrating arrays. Synchron is also the first platform routed here through Apple's [[wiki/BCI Human Interface Device Protocol|BCI Human Interface Device protocol]]. That interface places neural control inside an operating-system accessibility layer, allowing supported devices to operate ordinary applications through the same abstraction used by other assistive inputs. ## Evidentiary boundary Trial enrollment counts and regulatory milestones in the two source articles describe different reporting snapshots and should not be silently merged into one current number. Endovascular access is not non-invasive, operating-system integration is not general commercial approval, and low-dimensional device control is not unconstrained thought decoding. ## Relationships **Related cluster nodes:** [[collections/Neurotech|Neurotech]] · [[wiki/Brain-Computer Interfaces|Brain-Computer Interfaces]] · [[wiki/Invasive BCI|Invasive BCI]] · [[wiki/Neuralink|Neuralink]] · [[wiki/Precision Neuroscience|Precision Neuroscience]] <!-- BEGIN NEUROTECH RELATIONSHIP GRAPH 2026-09-10 --> ### Master relationship graph patch — 2026-09-10 **Collection:** [[collections/Neurotech|Neurotech]] **Relationship source:** [[research/Neurotechnology Ecosystem Relationship Graph - 2026-09-10|Neurotechnology Ecosystem Relationship Graph — 2026-09-10]] **Related source articles:** [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]] · [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] · [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] #### Outgoing typed edges - **Edge 298 — `founded_and_led_by` → [[wiki/Tom Oxley|Tom Oxley]]** — **CORPUS**; evidence `CORPUS_BCI`, `SYNCHRON_HOME`. - **Edge 299 — `develops` → [[wiki/Stentrode|Stentrode]]** — **VERIFIED**; evidence `SYNCHRON_TECH`. Endovascular BCI via cerebral blood vessel. - **Edge 300 — `access_geometry` → interventional/endovascular** — **VERIFIED**; evidence `SYNCHRON_HOME`, `SYNCHRON_TECH`. Avoids open-brain surgery. - **Edge 301 — `integrates_with` → [[wiki/Apple|Apple device ecosystem]]** — **CORPUS**; evidence `CORPUS_BCI`. BCI HID/Switch Control lineage; source corpus documents 2025 native integration. - **Edge 302 — `research_domains` → sensing + models + interactions** — **VERIFIED**; evidence `SYNCHRON_RESEARCH`. Useful ontology for decoders and interaction pages. #### Incoming typed edges - **Edge 410 — [[wiki/Less-Invasive Brain-Computer Interface|less-invasive BCI]] `bridge_entities` → this entry** — **ANALYTIC**; evidence `SYNCHRON_TECH`, `SUB_TECH`, `MERGE_OPENAI`, `PRECISION_VISION`. Different access geometries solving common surgery/bandwidth trade-space. - **Edge 413 — [[wiki/BCI Operating-System Substrate|operating-system BCI integration]] `bridge_entities` → this entry** — **CORPUS**; evidence `CORPUS_BCI`, `CORPUS_ATLAS`. Treat OS/API layer as its own wiki entry, not a Synchron footnote. #### Epistemic boundary `VERIFIED`, `VERIFIED_SECONDARY`, `CORPUS`, `STRONG_TECHNICAL_LINEAGE`, `STRONG_TECHNICAL_CONVERGENCE`, `ANALYTIC`, and `UNRESOLVED` are retained as distinct relation states. An edge does not imply ownership, control, funding, licensing, technology transfer, or organizational identity unless its predicate and evidence state that relationship explicitly. <!-- END NEUROTECH RELATIONSHIP GRAPH 2026-09-10 --> <!-- BEGIN CONSCIOUSNESS MAPPING TRANSFER RELATIONSHIP GRAPH 2026-09-10 --> ### Consciousness mapping and transfer graph patch — 2026-09-10 **Collections:** [[collections/Neurotech|Neurotech]] · [[collections/Consciousness Continuity|Consciousness Continuity]] **Relationship source:** [[research/Consciousness Mapping and Transfer Ecosystem Relationship Graph - 2026-09-10|Consciousness Mapping and Transfer Ecosystem Relationship Graph — 2026-09-10]] **Related source articles:** [[articles/Technologies for Consciousness Mapping and Transfer|Technologies for Consciousness Mapping and Transfer]] · [[articles/The Architecture of Continuity and Emerging Neuroinformatics Standards|The Architecture of Continuity and Emerging Neuroinformatics Standards]] · [[articles/2026 Annual Report on Brain-Computer Interfaces|2026 Annual Report on Brain-Computer Interfaces]] · [[articles/The Organic-Synthetic Brain Atlas|The Organic-Synthetic Brain Atlas]] #### Outgoing typed edges - **Edge 298 — `founded_and_led_by` → [[wiki/Tom Oxley|Tom Oxley]]** — **PRIOR_NEUROTECH_CORPUS**; evidence `CORPUS_BCI`, `SYNCHRON_HOME`. - **Edge 299 — `develops` → [[wiki/Stentrode|Stentrode]]** — **PRIOR_NEUROTECH_VERIFIED**; evidence `SYNCHRON_TECH`. Endovascular BCI via cerebral blood vessel. - **Edge 300 — `access_geometry` → interventional/endovascular** — **PRIOR_NEUROTECH_VERIFIED**; evidence `SYNCHRON_HOME`, `SYNCHRON_TECH`. Avoids open-brain surgery. - **Edge 301 — `integrates_with` → [[wiki/Apple device ecosystem|Apple device ecosystem]]** — **PRIOR_NEUROTECH_CORPUS**; evidence `CORPUS_BCI`. BCI HID/Switch Control lineage; source corpus documents 2025 native integration. - **Edge 302 — `research_domains` → sensing + models + interactions** — **PRIOR_NEUROTECH_VERIFIED**; evidence `SYNCHRON_RESEARCH`. Useful ontology for decoders and interaction pages. #### Epistemic boundary Primary-source, peer-reviewed, company-claim, preprint, analytic, inherited-corpus, dynamic-metric, source-version-conflict, and unresolved states remain distinct. A current primary source supersedes a stale uncertainty label without erasing the correction history. No edge establishes ownership, funding, licensing, program lineage, technology transfer, operational integration, or institutional control unless its predicate and evidence explicitly do so. <!-- END CONSCIOUSNESS MAPPING TRANSFER RELATIONSHIP GRAPH 2026-09-10 -->