Cruxi
FDA record research
The 2021–2025 analysis contains 3 selected substantially-equivalent FDA decisions under primary product code QUT. Use it to compare documented submissions and evidence with your product. A separate 2026 update contains 0 decisions through 2026-09-27. The latest selected decision across the acquired endpoint is dated 2025-11-19. Neither set establishes a suitable predicate or the route for your device. The complete-year window has 3 decisions; the separate all-observed-date count is 3. These denominators describe different date ranges.
Evidence retrieved 2026-10-07. Source versions and topic-specific limits are listed below.
An exact FDA-record regulation_number match to one acquired Title 21 section. Records with the same normalized scope definition, class, regulation and recorded submission/GMP flags are grouped. Sparse definitions and generic exemption boilerplate do not qualify. No text-similarity equivalence or legal applicability is inferred.
A semi-quantitative assay that measures cellular deformability and other physical properties of leukocytes in whole blood samples to aid the early detection of sepsis
Compare the proposed indication, user, anatomy, technology and operating principle with this actual scope; record differences and unresolved facts.
§ 866.3215 Device to detect and measure non-microbial analyte(s) in human clinical specimens to aid in assessment of patients with suspected sepsis. (a) Identification. A device to detect and measure non-microbial analyte(s) in human clinical specimens to aid in assessment of patients with suspected sepsis is identified as an in vitro device intended for the detection and qualitative and/or quantitative measurement of one or more non-microbial analytes in human clinical specimens to aid in the assessment of patients with suspected sepsis when used in conjunction with clinical signs and symptoms and other clinical and laboratory findings. (b) Classification. Class II (special controls). The special controls for this device are: (1) Premarket notification submissions must include the device's detailed Indications for Use statement describing what the device detects and measures, the results provided to the user, whether the measure is qualitative and/or quantitative, the clinical indications for which the test is to be used, and the specific population(s) for which the device use is intended. (2) Premarket notification submissions must include detailed documentation of the device description, including (as applicable), all device components, software, ancillary reagents required but not provided, explanation of the device principle and methodology, and for molecular devices include detailed documentation of the primer/probe sequence, design, and rationale for sequence selection. (3) Premarket notification submissions must include detailed documentation of applicable analytical studies, such as, analytical sensitivity (Limit of Detection, Limit of Blank, and Limit of Quantitation), precision, reproducibility, analytical measuring range, interference, cross-reactivity, and specimen stability. (4) Premarket notification submissions must include detailed documentation of a prospective clinical study or, if appropriate, results from an equivalent sample set. This detailed documentation must include the following information: (i) Results must demonstrate adequate device performance relative to a well-accepted comparator. (ii) Clinical sample results must demonstrate consistency of device output throughout the device measuring range likely to be encountered in the Intended Use population. (iii) Clinical study documentation must include the original study protocol (including predefined statistical analysis plan), study report documenting support for the Indications for Use(s), and results of all statistical analyses. (5) Premarket notification submissions must include evaluation of the level of the non-microbial analyte in asymptomatic patients with demographic characteristics ( e.g., age, racial, ethnic, and gender distribution) similar to the Intended Use population. (6) As part of the risk management activities performed under 21 CFR 820.10(c) design and development, you must document an appropriate end user device training program that will be offered as part of your efforts to mitigate the risk of failure to correctly operate the instrument. (7) A detailed explanation of the interpretation of results and acceptance criteria must be included in the device's 21 CFR 809.10(b)(9) compliant labeling, and a detailed explanation of the interpretation of the limitations of the samples ( e.g., collected on day of diagnosis) must be included in the device's 21 CFR 809.10(b)(10) compliant labeling. [82 FR 49099, Oct. 24, 2017, as amended at 90 FR 55982, Dec. 4, 2025]
Read the identification, classification, conditions and referenced limitations in the cited section. A numeric reference match is not a buyer classification or exemption determination.
Historical FDA comparison
All statistics in this section use decisions dated 2021-01-01 to 2025-12-31. The partial 2026 update below is excluded from these distributions.
There are 3 valid recent date pairs. Distribution summaries require at least 20; older records are not substituted for a current benchmark.
| Recorded type | Decisions | Valid date pairs | Median calendar days | Middle 50% |
|---|---|---|---|---|
| Special | 1 | 1 | Withheld: n < 20 | — |
| Traditional | 2 | 2 | Withheld: n < 20 | — |
Different submission types and evidence packages are not interchangeable. These selected records do not establish that a particular route is available for your product.
Statistical source: FDA openFDA 510(k) decision dataset. Partition 1 Download the identified records and dates (CSV).
Deduplicate by official submission ID across the complete current manifest partitions. Select exact primary product code, K-number format and the stated SE decision codes with valid dates. Recent distributions use the five complete calendar years preceding the latest valid endpoint decision year. Partial-year counts compare equal January-to-cutoff periods. Quartiles use linear interpolation at (n-1)*p and are withheld below 20 valid date pairs. The analysis n describes only its declared complete-year window; selected_se_n separately counts all selected recorded dates through the cutoff.
3 selected records across all observed dates; 0 other/invalid identifier or decision-date records excluded. 0 missing or invalid date pairs in the five-year window.
Date fields: date_received → decision_date. Quantiles: Hyndman–Fan type 7: linear interpolation at (n − 1) × p; displayed to one decimal; n ≥ 20 valid pairs.
Receipt-to-decision calendar elapsed time includes time outside active FDA review; it is not FDA review time, a promised project timeline or an estimate of future clearance. This selected recorded cohort does not include all applications or establish a success probability, predicate suitability, market size, current market availability or legal authorization for another product.
Calculation fda-buyer-research-3 · database cutoff 2026-09-27. CSV rows identify each official K-number, cohort, date pair, exclusion reason and source version.
Separate partial-year update
0 selected decisions from 2026-01-01 to 2026-09-27. The equivalent previous-year period contains 1 decisions through 2025-09-27. These counts describe the records; they are not market growth or submission success rates.
Named records to investigate
These dated records may come from 2026 or earlier years. They are a separate investigation list, not the five-year statistical cohort. Compare the actual indications and technology before considering a record as a comparator.
Supporting documents actually acquired
Read the source context, then compare the evidence with your design. Topic locations below are text matches, including possible limitations or negative statements; they are not a mandatory test list.
The documents are a bounded sample of acquired summaries, not complete evidence coverage of the cohort.
Known context: US. Match the intended use and design with the recorded category before treating it as applicable.
| Source fact | Recorded value |
|---|---|
| FDA product code | QUT [1] |
| Generic device category | Deformability Cytometry For Sepsis Risk Assessment [1] |
| Recorded scope | A semi-quantitative assay that measures cellular deformability and other physical properties of leukocytes in whole blood samples to aid the early detection of sepsis [1] |
| Recorded class | 2 [1] |
| Regulation | 866.3215 [1] |
| Medical specialty | Microbiology [1] |
Use this checklist to gather your business or product details before speaking with a specialist. The items below explain what to record and suggest useful supporting documents. You can add your own answers in the editable project brief.
Put your proposed label and design beside the quoted definition. Record matching facts, differences and missing facts separately; naming the category alone cannot resolve scope.
Useful evidence: Proposed indication/design and a definition-to-product comparison with source locators.
Record the applicable paragraph, conditions and cross-referenced limitations after specialist review. Keep a claimed exemption separate from actual establishment, listing and quality-system responsibilities.
Useful evidence: Dated classification/route rationale and the current provisions relied on, with unresolved conditions.
Choose a named record above. Put your proposed claim beside its actual indications-for-use statement. Record different patients, users, anatomy, settings and output claims; do not treat a shared code as proof of equivalence.
Useful evidence: Your draft indications for use + the selected official summary and its exact page.
For each comparison, record the different materials, hardware, software functions and operating conditions. Link each difference to existing evidence or an unresolved evaluation task.
Useful evidence: A three-column matrix: comparator fact / your design fact / evidence or unresolved gap.
This recent cohort has fewer than 20 valid date pairs, so it supplies no median or percentile benchmark. Ask for a schedule based on actual preparation, evidence gaps, interactions and response assumptions; keep any historical decision context separately dated.
Useful evidence: Document/test readiness, unresolved route/evidence tasks and the assumptions behind the specialist’s proposed sequence.
Read the official document in context. The audit details identify the precise locators and preserved versions used for this page.
2026-10-05 · retrieved 2026-10-06
Source key D01 · snapshot 936de5f5d47b9293b702fc32512a79173969fb788c74a63d9b91abe73f3b86a5
Fri, 05 Dec 2025 20:52:13 GMT · retrieved 2026-10-06
Source key D02 · snapshot a1b617c8bccffa2f6f811e60f281f146a80c209686e0176dbea7e7f53cb8cefd
2026-10-05 · retrieved 2026-10-06
Source key D01 · snapshot 5a86994ba49a37e71e09be96803fd51981c6c43eaa96caab41aea2b188bfe002
Mon, 07 Apr 2025 11:41:35 GMT · retrieved 2026-10-07
Source key D02 · snapshot b75c2679f17c406f8d941925c949a4559a9b8d1beb4aedf5d3d59cbd0bb1fce4
Wed, 21 Dec 2022 18:44:04 GMT · retrieved 2026-10-07
Source key D02 · snapshot f47ea2124a3106dfe6309beabe1f7b3f14774be4d7081a09fe9bd6cf01e0477c
Thu, 01 Oct 2026 22:01:48 GMT · retrieved 2026-10-06
Source key D04 · snapshot 2fb992918a3879de132b47a33c856da2b3234ee3d96cfd79fab03acf30512496
Confirm the facts, scope and contact preference before sharing your project. Preparing this page sends no provider outreach.
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