Recorded device evidence

Optilite Freelite Mx Kappa Free Kit, Optilite Freelite Mx Lambda Free Kit (K173732): indications, design and recorded evidence

The acquired K173732 file contains product-specific indications and users, design and operating principle, performance evidence actually described sections. Compare these dated manufacturer statements with your own indication and design before commissioning evidence work. They describe this submission; they do not prescribe your testing, validate performance independently or establish a suitable predicate.

Evidence retrieved 2026-10-07. Source versions and topic-specific limits are listed below.

Computed exact-code research

This decision beside its recorded product-code cohort

The 2021–2025 complete-year cohort contains 10 selected decisions under primary code DFH. 10 have valid reported receipt/decision pairs; 0 pairs are missing or invalid.

No quartiles are displayed: this complete-year cohort has fewer than 20 valid pairs.

The table shows the named decision and up to four latest exact-code research records through 2026-09-27. It can include partial-year records outside the complete-year cohort. The quartiles above use the full stated cohort, not this displayed selection.

Research recordRecorded deviceReceipt → decisionCalendar elapsed daysRecorded submission type
K173732 ↗ · this pageOptilite Freelite Mx Kappa Free Kit, Optilite Freelite Mx Lambda Free Kit2017-12-06 → 2018-08-23260Traditional
K253358 ↗Diazyme Human Kappa (k) Free Light Chain Assay; Diazyme Human Lambda (¿) Free Light Chain Assay2025-09-30 → 2025-12-1980Traditional
K250549 ↗Optilite® Freelite Mx Kappa Free Kit; Optilite® Freelite Mx Lambda Free Kit2025-02-25 → 2025-05-2387Traditional
K231601 ↗FLC Kappa, FLC Lambda,FLC Control Level 1, FLC Control Level 22023-06-01 → 2024-02-23267Traditional
K231290 ↗Optilite® Freelite® Kappa Free Kit, Optilite® Freelite® Lambda Free Kit2023-05-04 → 2024-01-24265Traditional

Use this comparison: select a record to investigate, read its actual indications and design, and document differences. A shared code or elapsed period cannot establish its relevance to your device.

Calendar elapsed days are not active FDA review time, a promised schedule or a success probability. The selection includes only the stated recorded decisions, not all applications. Latest records can postdate the named historical decision and are contextual research, not its predicates. Shared codes, summaries and observed records do not prove equivalence, current market availability, buyer applicability or predicate suitability.

Calculation, selection and source versions

Reuse the complete-endpoint exact-primary-code, documented SE-decision cohort and its stated cutoff/window. Retain its type-7 quartiles only when at least 20 valid date pairs are present. Independently subtract the named official record’s receipt date from its decision date; missing or negative pairs remain unknown. Show up to four latest exact-code research records, excluding the named ID. Parent analysis hash, source snapshots and calculation versions are retained.

Calculation: fda-named-decision-cohort-context-1; cutoff 2026-09-27; 0 parent records excluded; units record counts; calendar elapsed days.

Source snapshots: 5a86994ba49a37e71e09be96803fd51981c6c43eaa96caab41aea2b188bfe002.

Read beyond the decision row

Recorded evidence and differences to investigate

The summary is manufacturer-submitted context hosted by FDA. Negative/no-study statements are preserved. Evidence themes are not binding legal requirements.

Short opening excerpts identify the source sections. Read the linked original for the full study context, negative statements, tables and limitations. Public quotations are limited to 120 words per acquired summary; the internal evidence packet retains exact section ranges for review.

Indications and users

K173732 · PDF page 3 ↗ Source 2

The Optilite Freelite Mx Kappa Free Kit is intended for the quantitative in vitro measurement of Kappa free light chains
in serum and urine using the Binding Site Optilite analyser.

The excerpt is shortened at a complete statement. Read the complete section in the original PDF before interpreting the evidence.

Compare with your product: Compare the recorded indication, population, body site and use environment with your proposed label. Record each change instead of assuming the primary code settles intended use.

Design and operating principle

K173732 · PDF page 6 ↗ Source 3

The Optilite Freelite Mx                                  Kappa Free Kit is comprised of the f ollowing reagents:

      Latex Reagent: Sheep anti           -Human Kappa (polyclonal monospecif ic) antibody            (F(ab’)2
      fragment) bound to 200nm polystyrene latex particles.

The excerpt is shortened at a complete statement. Read the complete section in the original PDF before interpreting the evidence.

Compare with your product: Compare physical design, materials, energy, accessories and operating principle with your design. Ask which documented differences change the evidence scope.

Performance evidence actually described

K173732 · PDF page 9 ↗ Source 4

Read this statement in the original PDF; no complete statement fits the short excerpt.

Compare with your product: The source labels this section as performance data. Determine which described evidence is bench, software, biological or clinical from the actual narrative and original tables; the section label alone does not settle that distinction or prescribe your testing.

Extraction selection and limits

Select observed whole-line section headings or explicit colon-delimited inline labels on readable PDF pages, including the explicitly documented heading-spacing variants in this parser version. Preserve the original heading, character ranges and layout; do not repair excerpt text. Exclude letter boilerplate and uncertain pages. Stop at observed table headings; do not infer table columns or scalar results from layout text. Multi-column or suspicious split-numeric excerpts are excluded until reviewed alternate extraction is available. Original layout records remain retained; any alternate text has its own extractor-version locator and requires original-page review. For each dimension, prefer usable versioned alternate text where available, selecting its longest usable excerpt; otherwise select the longest usable original-layout excerpt. Ties preserve source order. Bounded to 64 PDF pages and 3,500 characters per section. This is a selection, not a complete dossier analysis.

Excluded extraction items: {}.

Known facts and deciding inputs

Known context: US. Confirm the organisation’s role, relevant activities and markets against the cited criteria.

Source factRecorded valueWhat to check
510(k) identifierK173732 [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Generic device categoryOptilite Freelite Mx Kappa Free Kit, Optilite Freelite Mx Lambda Free Kit [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Recorded applicantThe Binding Site Group , Ltd. [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
FDA product codeDFH [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Decision date2018-08-23 [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Recorded decision codeSESE [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Submission typeTraditional [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Receipt date2017-12-06 [1]Dated official record fact; not proof of current commercial availability or applicability to another device.

Prepare a differences and evidence worksheet

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.

  1. Indications and users — what differs in our product?

    Compare the recorded indication, population, body site and use environment with your proposed label. Record each change instead of assuming the primary code settles intended use.

    Useful evidence: Our proposed indication, user/population and use environment beside this exact recorded indication.

  2. Design and operating principle — what differs in our product?

    Compare physical design, materials, energy, accessories and operating principle with your design. Ask which documented differences change the evidence scope.

    Useful evidence: Design description, materials/components, accessory list and a differences matrix.

  3. Performance evidence actually described — what differs in our product?

    The source labels this section as performance data. Determine which described evidence is bench, software, biological or clinical from the actual narrative and original tables; the section label alone does not settle that distinction or prescribe your testing.

    Useful evidence: The cited narrative and full tables, underlying protocols/results and a reviewed comparison with the proposed product.

Work packages and dependencies

Questions for providers

Sources and data dates

Read the official document in context. The audit details identify the precise locators and preserved versions used for this page.

FDA openFDA — 510(k) decision records ↗

2026-10-05 · retrieved 2026-10-06

Audit details: precise locators and snapshot identifiers

Source key D01 · snapshot 5a86994ba49a37e71e09be96803fd51981c6c43eaa96caab41aea2b188bfe002

  • [1] device-510k-0001-of-0001.json:results[114771] · record a49cb9451736f2a46a46e6db0a5a7c4332eb4a80a5eeaf70194deba5f62c3ead
  • [5] Complete results array / fda-decision-context:K173732 · record whole dataset partition

FDA 510(k) summary — K173732 ↗

Thu, 06 Sep 2018 21:36:01 GMT · retrieved 2026-10-07

Audit details: precise locators and snapshot identifiers

Source key D02 · snapshot eb4cacc24c1eef517f1f159cec2092005cae8256de963d314b7ce73deb38092d

  • [2] PDF page 3 · record c1533a7816012c5eccfeae434c3d284dc4129aa4e6ac86fd287b790e46286e9d
  • [3] PDF page 6 · record a412420bf41b76d2f8bb6a87c10b7d819ed615d69482bc5b2332588a6fa74313
  • [4] PDF page 9 · record b1d3ad283844c73283e662912b12a464e00ee8196e75ccf0e7513b2bc2a298ff

Prepare an editable project brief

Confirm the facts, scope and contact preference before sharing your project. Preparing this page sends no provider outreach.

Choose work packages to discuss

Compare FDA 510(k) Submission Services