FDA-cleared profile

Accuro 3S

Rivanna Medical, Inc.

Authorized purpose: Accuro 3S is portable B-mode ultrasound with SpineNav-AI for lumbar-spine scouting and epidural-depth estimation during neuraxial-anesthesia and needle or catheter placement workflows.

Evidence status: each field states its source quality, applicability, and review date. Research pending, information not established, and vendor documentation pending remain distinct outcomes.

Product overview

Start with the essentials

Authorized purpose: Accuro 3S is portable B-mode ultrasound with SpineNav-AI for lumbar-spine scouting and epidural-depth estimation during neuraxial-anesthesia and needle or catheter placement workflows.

Overview status: Source-reviewed overview

Clinical takeaway

Clinical role: Accuro 3S is portable B-mode ultrasound with SpineNav-AI for lumbar-spine scouting and epidural-depth estimation during neuraxial-anesthesia and needle or catheter placement workflows.

Evidence takeaway

Evidence from the reviewed source record: K243937 reports software, segmentation, depth-estimation, image-quality, system, and usability validation for the lumbar-spine workflow.

Clinical details

What this tool is for

Start with the authorized purpose, then verify how it fits your service line and reading workflow.

Exact purpose
Accuro 3S is portable B-mode ultrasound with SpineNav-AI for lumbar-spine scouting and epidural-depth estimation during neuraxial-anesthesia and needle or catheter placement workflows.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Clinical-use display mirrors the exact FDA-supported purpose reconciled from the decision-summary packet.

Intended users
Qualified and trained healthcare professionals.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The indications statement gives this user class and does not identify the dossier's specific physician, sonographer, and other-professional list.

Care setting and population
Hospitals, clinics, offices, and point-of-care environments within the device's cleared applications.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Workflow role
Ultrasound acquisition, measurement, analysis, reporting, and release-specific AI assistance.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Required input
B-mode imaging from the Accuro 3S Dual-Array probe.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The packet states B-mode imaging and the Dual-Array probe; it does not state live or imported ultrasound data as the input wording.

Output and human action
The machine learning algorithm at the foundation of SpineNav-AI is a deep convolutional neural network approach to segmenting certain anatomical structures in the lumbar spine and conveying them by way of graphics to the user. A measurement to the epidural space is provided in an identical manner to SpineNav3D on the predicate Accuro (K171594) device.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

The packet's direct output is lumbar-spine graphics and an epidural-space measurement, not the dossier's generic calculations, overlays, and reports.

Limitations
Since the intended use is anatomical feature tracking during scouting rather than feature segmentation accuracy for diagnostic purposes, success criteria for each anatomical annotation produced with SpineNav-AI were derived via a preliminary survey with intended users.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

This is the packet's direct scouting-versus-diagnostic boundary; the later-product-family statement in the dossier is not FDA packet text.

Regulatory identity

FDA record and catalog context

The FDA listing establishes the regulatory identity. It does not by itself establish local workflow fit, pricing, security, or performance in your environment.

FDA submission
K243937
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Modality
Ultrasound
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Anatomy
Spine
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-19

Exact FDA decision-summary packet reviewed on 2026-09-19; existing wording is supported without expansion.

Clearance type
510(k)
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
Decision date
2025-05-23
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31
FDA status
FDA-cleared
  • FDA source
  • Exact FDA submission
  • Checked 2026-08-31

Implementation

Questions for IT, informatics, and operations

Use these fields to structure a vendor demo, security review, and implementation estimate.

Integration
Validate supported probes and host devices, patient matching, DICOM or local export, PACS measurements, worklist, report transfer, and offline or downtime behavior.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Deployment and data flow
Ultrasound hardware or software with supported probes, host devices, licensed options, and network configuration.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03
Security and privacy
Vendor documentation pending
  • Vendor confirmation
  • Exact FDA submission
  • Checked 2026-09-03

Public materials reviewed for this exact release do not establish the complete security posture. Request data-flow, identity, audit, encryption, retention, remote-access, vulnerability-management, backup, and incident-response evidence.

Training and support
Only qualified physicians, sonographers, and other trained ultrasound professionals. should operate or interpret the product. Local onboarding should cover the exact release, supported population, limitations, failure examples, escalation, downtime, and competency documentation.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Monitoring and change control
Monitor by exact hardware, software and model version, patient population, anatomy, protocol, operator, input quality, output edits or overrides, failed studies, repeat acquisition or rework, downstream impact, downtime, incidents, recalls, and updates. Track these product-specific limits: K243937 supports the cleared scouting and measurement workflow. Later product-family claims about real-time in-plane guidance are not attributed to this release without exact clearance evidence.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03

Release and scope verification

Map the installed model, build, options, population, anatomy, inputs, and outputs to K243937 before acceptance.

exact submission · checked 2026-09-03

Later product-family features are not evidence that this cleared release includes them.

Interoperability acceptance

Validate supported probes and host devices, patient matching, DICOM or local export, PACS measurements, worklist, report transfer, and offline or downtime behavior.

exact submission · checked 2026-09-03

Test representative identifiers, orientation, geometry, measurements, units, routing, failure handling, and round trips locally.

Clinical acceptance

Use a signed local test set for the supported population and workflow. Include common and difficult cases, exclusions, acquisition variation, failed or low-quality inputs, reviewer overrides, and downstream effects. K243937 supports the cleared scouting and measurement workflow. Later product-family claims about real-time in-plane guidance are not attributed to this release without exact clearance evidence.

exact submission · checked 2026-09-03

Define stop-use, escalation, rollback, and revalidation triggers before production use.

Economic evaluation

Model capital and recurring cost against net staff time after review, throughput, repeat imaging or rework, room time, consumables, infrastructure, training, service, downtime, upgrade, and replacement costs.

product family · checked 2026-09-03

Vendor productivity claims are scenario inputs, not guaranteed local savings.

Lifecycle monitoring

Monitor by exact hardware, software and model version, patient population, anatomy, protocol, operator, input quality, output edits or overrides, failed studies, repeat acquisition or rework, downstream impact, downtime, incidents, recalls, and updates. Track these product-specific limits: K243937 supports the cleared scouting and measurement workflow. Later product-family claims about real-time in-plane guidance are not attributed to this release without exact clearance evidence.

exact submission · checked 2026-09-03

Revalidate after material software, hardware, model, protocol, interface, or clinical-policy changes.

Evidence

Performance evidence

Metrics are shown only when they are tied to a source, endpoint, population, and tested product version. Candidate literature without exact product and version linkage is not shown as product evidence.

Evidence summary
K243937 reports software, segmentation, depth-estimation, image-quality, system, and usability validation for the lumbar-spine workflow.
  • FDA source
  • Exact FDA submission
  • Checked 2026-09-03
Reported sensitivity
Not applicable
  • Not applicable
  • Not applicable
  • Checked 2026-09-03

Sensitivity is not the primary endpoint for this acquisition, reconstruction, segmentation, guidance, or quantitative function. Use the task-specific evidence below.

Reported specificity
Not applicable
  • Not applicable
  • Not applicable
  • Checked 2026-09-03

Specificity is not the primary endpoint for this acquisition, reconstruction, segmentation, guidance, or quantitative function. Use the task-specific evidence below.

No contextualized exact-version metric has completed evidence review. Regulatory-document values, when available, are shown above with their limitations.

K243937 FDA performance package for Accuro 3S

  • DesignManufacturer ultrasound-system, AI segmentation, measurement, and usability validation
  • PopulationLumbar spine scouting and neuraxial-procedure preparation
  • Scopeexact submission
  • Tested versionAccuro 3S release cleared in K243937
  • IndependenceSponsor or vendor study

K243937

Manufacturer evidence submitted for clearance or approval; local clinical, technical, and workflow acceptance remains necessary.

Costs and setup

Budget and ongoing governance

These are common procurement questions; unknown values remain visible until a source supports them.

Pricing and total cost
Not established in reviewed sources
  • Reviewed sources checked
  • Exact FDA submission
  • Checked 2026-09-03

No public list price for the exact cleared configuration was found. Obtain a written quote separating hardware or license basis, enabled features, implementation, interfaces, infrastructure, training, service, upgrades, renewal, consumables, and exit costs.

Reimbursement and coding
No separate named-product Medicare payment was identified in the reviewed CMS coverage material. Evaluate the product within the applicable imaging, procedural, or surgical service line and verify payer, site-of-service, and coding assumptions independently.
  • Public source
  • Not applicable
  • Checked 2026-09-03

No product-specific code

No separate named-product payment identified in reviewed public material

Centers for Medicare & Medicaid Services · United States

Build a local total-cost and value model; do not infer reimbursement from FDA clearance or approval.

Safety and lifecycle

Postmarket record

Recall and adverse-event records are shown only after product matching. Adverse-event reports do not establish incidence or causality.

Postmarket safety review
The 2026-09-02 openFDA device-recall snapshot contained no record matched to K243937 by exact submission identifier. This does not exclude product-family or later safety information.
  • Public source
  • Exact FDA submission
  • Checked 2026-09-03

Exact-identifier review does not prove absence of all product-family safety signals.

Buyer worksheet

Open questions to take to the vendor

Open evaluation checklist

Research record

What has been checked

This audit distinguishes completed source review from fields that have not yet been researched.

Exact FDA record reviewedStatus
2026-09-20Last searched
27Fields reviewed
12Source classes checked
0Screened PubMed leads
2Screened trial leads
0Unreviewed FDA recall leads

The refreshed discovery snapshot contains 0 PubMed and 2 ClinicalTrials.gov candidate records. Discovery metadata alone does not establish exact tested-product, version, population, and endpoint applicability, so all candidates remain quarantined and none was promoted. The current discovery snapshot contains 0 PubMed and 2 ClinicalTrials.gov candidate records; its dated, count-matched human screening remains current. Unlinked candidates remain quarantined. Native FDA recall identifiers produced 0 postmarket candidate records; 0 have been reviewed (0 published, 0 rejected) and 0 remain unreviewed.

Candidate leads were screened against the exact product and tested version. Unlinked records remain quarantined.

Source classes: fda ai list, fda decision summary, fda decision material, vendor product page, reimbursement policy, fda device recall, fda decision summary packet, literature index, trial registry, pubmed, clinical trials, openfda device recall

Sources & history

How this profile was documented

Open the ledger for source dates, scope, and research-record updates.

View source ledger and history

Source ledger

  1. FDA K243937: Accuro 3S

    U.S. Food and Drug Administration - Published 2025-05-23 - Accessed 2026-09-19

    Scope: purpose, modality, anatomy, intendedUsers, input, output, limitations, evidenceSummary, clinicalUse

  2. Artificial Intelligence-Enabled Medical Devices

    U.S. Food and Drug Administration - Accessed 2026-08-31

    Scope: regulatoryIdentity, modalityContext

  3. PubMed biomedical literature index

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery

  4. ClinicalTrials.gov study registry

    U.S. National Library of Medicine - Accessed 2026-09-01

    Scope: evidenceDiscovery, studyStatus

  5. Medicare Coverage Database

    Centers for Medicare & Medicaid Services - Accessed 2026-09-01

    Scope: coverage, codingContext

  6. openFDA Device Recall API

    U.S. Food and Drug Administration - Accessed 2026-09-02

    Scope: recallDiscovery, nativeSubmissionMatching

  7. RIVANNA Accuro 3S

    RIVANNA Medical - Accessed 2026-09-03

    Scope: integration, deployment, monitoring, productFamilyContext

Research history

  1. K243937 FDA decision

    Regulatory record

    510(k)

  2. Source-review record updated

    Research record

    fda record reviewed

  3. Reader overview source-reviewed

    Editorial review

    Source-reviewed editorial overlay

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