Medical Patient Transfer Coordination

Mechanism

The mechanism treats patient transfer not as a sequence of bilateral handoffs documented in disjoint records, but as a cross-domain coordination handoff under the N-party coordination settlement primitive, in which clinical lineage transfers across authority-domain boundaries without loss of governance continuity, lineage continuity, or coordination-state continuity. The authorities recognized for the medical patient-transfer instance are the emergency-medical-services authority, the hospital authority, the surgical authority, the post-operative-care authority, and the post-discharge-primary-care authority. Each holds governance-credentialed control of the operation within its respective domain, and the handoff transfers that control across the boundary between one authority and the next.

Each participating authority contributes a role-differentiated attestation under the coordination-pattern selector, which applies a governance-policy-defined coordination pattern specifying the roles of each party and the rules for producing the coordinated outcome. The role-differentiated attestation schema specifies per-role observation content for each participating authority. A relinquishing-domain authority and a receiving-domain authority each produce observations at the boundary: a handoff-eligibility evaluator produces a handoff-eligibility observation indicating operation suitability for handoff, and a handoff-acceptance interface produces a receiving-authority acknowledgment observation.

The handoff is recorded as a lineage-linked pair through matched-pair handoff settlement per the matched-pair settlement primitive. A cross-authority taxonomy translator reconciles authority context, observation schemas, and applicable policies across the taxonomies of the relinquishing and receiving authorities. A lineage-continuity preserver ensures complete provenance remains accessible across the handoff, and a handoff-lineage recorder records each handoff event in the governance chain lineage field. Downstream review of the transfer traverses the lineage rather than reconstructing the transfer from disjoint records held by each authority in isolation.

Lineage binding is structural. The handoff references, through the governance chain lineage field, the authority credential of each participating authority and the contributing clinical observations. Because the handoff is governance-credentialed authority transfer rather than implicit ownership transfer, and because lineage continuity is preserved across the boundary rather than isolated per domain, the complete provenance of the transfer remains accessible to any authority admitted to it.

Operating Parameters

The cross-domain coordination handoff is grounded in physical spatiotemporal proximity. A spatial-proximity evaluator verifies participant spatial proximity and a temporal-proximity evaluator verifies participant temporal proximity, grounding the coordination in physical reality rather than in an abstract messaging relationship. A per-participant admissibility evaluator applies the composite admissibility evaluator to each contributed observation.

Acceptance by the receiving authority is graduated rather than binary. A graduated handoff-confidence governor modulates receiving-authority acceptance by cross-authority evidential weight, so that a higher-confidence handoff and a lower-confidence handoff are admitted under correspondingly differentiated governance rather than completing on a binary handoff acknowledgment. The graduated confidence governance distinguishes the primitive from prior handoff mechanisms that complete on binary handoff completion.

Privacy governance applies to the disclosure surface of each attestation through the biological identity primitive, subject to consent and to privacy-tier filtering. Each authority's view of the contributed observations is filtered under governance-policy-defined privacy-tier governance rather than achieved by post-hoc redaction. Participant identity is carried under the continuity-preserving participant identity of the biological identity primitive.

Partial-quorum and abandonment handling, Byzantine-robust coordination tolerating a governance-policy-defined fraction of adversarial or failed participants, dynamic membership supporting member replacement during ceremonies, and multi-round coordination converging to a terminal outcome are available to the medical patient-transfer handoff through the N-party coordination settlement primitive, which integrates these mechanisms through a unified mechanism. The specific composition is set per deployment by governance policy.

Alternative Embodiments

In one embodiment, the handoff proceeds across the full chain of recited authorities, from emergency-medical-services authority through hospital, surgical, and post-operative-care authorities to the post-discharge-primary-care authority, with each boundary recorded as a matched-pair handoff settlement and each authority contributing its role-differentiated attestation.

In a further embodiment, a subset of the recited authorities participates as the transfer class requires, with the coordination pattern selecting the roles present for that transfer and the cross-authority taxonomy translator reconciling authority context across only the boundaries traversed.

In a further embodiment, the handoff crosses a jurisdictional boundary, composing the medical patient-transfer handoff with the jurisdiction-to-jurisdiction handoff instance so that operations cross national, state, or municipal borders with authority-context update.

In a further embodiment, a participant becomes unavailable during the handoff and the dynamic-membership mechanism supports member replacement during the ceremony, while the partial-quorum and abandonment handler manages an incomplete ceremony under declared governance policy.

Composition

The medical patient-transfer handoff composes with the matched-pair settlement primitive, which records each authority-boundary handoff as a lineage-linked pair and supplies the settlement substrate for the cross-domain coordination handoff. It composes with the broader N-party coordination settlement primitive, which extends the bilateral matched-pair settlement to arbitrary N-party ceremonies and supplies the Byzantine-robust coordination, partial-quorum handling, dynamic membership, and cross-pattern composition mechanisms.

The handoff composes with the dispute-resolution mechanism for adverse-outcome review, in which the evidentiary-lineage assembler assembles the complete governance-chain lineage of the disputed settlement as evidence and the dispute is routed to the governance-policy-defined dispute-resolution authority. Because the contributing attestations are structurally bound, a dispute can be directed against the specific role and attestation alleged to be defective.

Composition with the biological identity primitive supports patient identification across the transfer through continuity-preserving participant identity, with privacy-tier view filtering governing the disclosure surface at each authority boundary.

Failure Modes and Recovery

A handoff that is not accepted by the receiving authority is handled through the graduated handoff-confidence governor rather than as an exception. Where cross-authority evidential weight is insufficient, receiving-authority acceptance is modulated downward under governance policy rather than the handoff completing on a binary acknowledgment, and the determination is recorded in the governance chain lineage field.

Inconsistent or failed participation by one or more authorities is handled through the Byzantine-robust coordination mechanism, which tolerates a governance-policy-defined fraction of adversarial or failed participants. An incomplete ceremony is managed by the partial-quorum and abandonment handler. A participant that becomes unavailable during the handoff is handled through the dynamic-membership mechanism supporting member replacement during the ceremony.

A dispute over the transfer is handled through the dispute-resolution mechanism. The dispute-initiation interface accepts a governance-credentialed dispute claim, the dispute-admissibility evaluator applies governance-policy-defined admissibility rules including time limits, authority appropriateness, and standing requirements, and the settlement-reversal-or-amendment executor applies the resolution outcome to the disputed handoff, with each dispute event recorded in the governance chain lineage field.

Because lineage continuity is preserved across each boundary, the architecture does not produce unbound or undocumented intermediate states between authorities. The complete provenance of the transfer, including each handoff-eligibility observation, each receiving-authority acknowledgment, and each matched-pair settlement, remains accessible to any authority admitted to the lineage.

Prior-Art Distinction

The cross-domain coordination handoff is structurally distinguished from prior handoff mechanisms by the simultaneous presence of governance-credentialed authority transfer rather than implicit ownership transfer; lineage continuity preservation across the boundary rather than per-domain isolation; cross-authority taxonomy translation rather than authority-equivalence assumption; graduated handoff-confidence governance rather than binary handoff completion; matched-pair settlement of the handoff producing a lineage-recorded transfer artifact rather than ephemeral handoff acknowledgment; and cross-domain applicability through a single architectural primitive rather than domain-specific handoff mechanisms.

The broader N-party coordination settlement primitive is further distinguished from prior multi-party architectures. Prior blockchain consensus protocols require global agreement about shared state across all network participants, whereas the present primitive requires coordination among specific named parties only. Prior multi-signature cryptographic schemes aggregate signatures without attaching authority-chain semantics, whereas the present primitive produces governance-credentialed settlements with per-participant authority attribution. Prior architectures do not ground coordination in physical spatiotemporal proximity, whereas the present primitive requires participant spatial-temporal proximity grounding coordination in physical reality.

Implementation Considerations

The cross-domain coordination handoff supplies the binding layer that point-to-point exchange between the participating authorities lacks. Each authority contributes its role-differentiated attestation, and the handoff between authorities is recorded as a matched-pair settlement, without requiring the participating authorities to operate a shared platform or to assume authority equivalence across their taxonomies. The cross-authority taxonomy translator reconciles authority context, observation schemas, and applicable policies across the relinquishing and receiving authorities.

Identity across authorities is supported by the continuity-preserving participant identity of the biological identity primitive, with privacy-tier view filtering at each boundary. Resolution of identity within a receiving authority is performed under that authority's credentialing, and the lineage-continuity preserver ensures the complete provenance remains accessible across the handoff.

Downstream review, whether for clinical, regulatory, or other purposes, traverses the governance chain lineage field of the bound handoff rather than reconstructing the transfer from disjoint source systems. The responding authority demonstrates the transfer by exhibiting the lineage-recorded transfer artifact and its contributing attestations, assembled by the evidentiary-lineage assembler where a dispute arises.

Disclosure Scope

This article describes subject matter disclosed in U.S. Provisional Application No. 64/049,409. The disclosure encompasses the N-party coordination settlement primitive and its cross-domain coordination handoff mechanism as instantiated for medical patient transfer; the transfer of clinical lineage across emergency-medical-services, hospital, surgical, post-operative-care, and post-discharge-primary-care authorities; the role-differentiated attestation schema and coordination-pattern selector; the handoff-eligibility evaluator, handoff-acceptance interface, cross-authority taxonomy translator, lineage-continuity preserver, graduated handoff-confidence governor, and handoff-lineage recorder; the matched-pair settlement of the handoff; the spatial-proximity and temporal-proximity grounding; the Byzantine-robust coordination, partial-quorum and abandonment handling, dynamic membership, and cross-pattern composition mechanisms; and the composition of the handoff with the matched-pair settlement primitive, the dispute-resolution mechanism, and the biological identity primitive for continuity-preserving participant identity.