Recorded device evidence

HAL for Medical Use (Lower Limb Type) (K171909): indications, design and recorded evidence

The acquired K171909 file contains product-specific indications and users, recorded comparison and differences, non-clinical 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 9 selected decisions under primary code PHL. 9 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
K171909 ↗ · this pageHAL for Medical Use (Lower Limb Type)2017-06-26 → 2017-12-17174Traditional
K254198 ↗Trexo Theo2025-12-23 → 2026-09-02253Traditional
K260381 ↗Eve2026-02-05 → 2026-08-03179Traditional
K250904 ↗Atalante X2025-03-26 → 2025-10-24212Traditional
K241822 ↗ReWalk® 7 Personal Exoskeleton (50-20-0005)2024-06-24 → 2025-03-12261Traditional

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; 1 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

K171909 · PDF page 3 ↗ Source 2

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

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.

Recorded comparison and differences

K171909 · PDF page 13 ↗ Source 3

Device                      Subject Device                                Predicate Device
                            (HAL for Medical Use)                             (ReWalk K131798)
 Body                •  Worn over legs and around hips               Worn  over  legs  and  around  hips
 Coverage               and lower torso.

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

Compare with your product: The summary’s comparison is a manufacturer statement about that submission. Investigate the actual design differences and cited records before considering any comparator or predicate.

Non-clinical evidence actually described

K171909 · PDF page 6 ↗ Source 4

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

Compare with your product: Treat these as documented evidence themes in this case, including any limitations or negative statements. Ask which protocols, design inputs and acceptance rationale would be justified for your product; these excerpts are not a mandatory test panel.

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: {}.

Historical references beside dated FDA recognition metadata

Read each mention in the linked original summary, including statements that testing was not performed. Recognition metadata does not determine your testing needs, chosen edition or transition eligibility.

Reference in this historical summaryDesignation in the acquired FDA exportRecognition / entry dateRecorded transition-expiration dateSources
IEC 60601-1-2:2007
5.6 Non-Clinical Performance Data
IEC 60601-1-2 Edition 4.1 2020-09 CONSOLIDATED VERSION
Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and tests
19-36 · Partial
12/21/2020
Not recorded in this export rowSummary [4] · Metadata [5]
Read scope and recognition limits ↗
IEC 60601-1-2:2007
5.6 Non-Clinical Performance Data
ANSI AAMI IEC 60601-1-2:2014 [Including AMD 1:2021]
Medical electrical equipment - Part 1-2: General requirements for basic safety and essential performance - Collateral Standard: Electromagnetic disturbances - Requirements and tests [Including Amendment 1 (2021)]
19-36 · Partial
12/21/2020
Not recorded in this export rowSummary [4] · Metadata [6]
Read scope and recognition limits ↗
IEC 60601-1-6:2013
5.6 Non-Clinical Performance Data
IEC 60601-1-6 Edition 3.2 2020-07 CONSOLIDATED VERSION
Medical electrical equipment - Part 1-6: General requirements for basic safety and essential performance - Collateral standard: Usability
5-132 · Complete
12/21/2020
Not recorded in this export rowSummary [4] · Metadata [7]
Read scope and recognition limits ↗
IEC 62133:2012
5.6 Non-Clinical Performance Data
IEC 62133 Edition 2.0 2012-12
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary cells and for batteries made from them for use in portable applications [Including: Corrigendum 1 (2013)]
19-13 · Complete
12/23/2019
Not recorded in this export rowSummary [4] · Metadata [8]
Read scope and recognition limits ↗
IEC 62304:2006
5.6 Non-Clinical Performance Data
IEC 62304 Edition 1.1 2015-06 CONSOLIDATED VERSION
Medical device software - Software life cycle processes
13-79 · Complete
01/14/2019
Not recorded in this export rowSummary [4] · Metadata [9]
Read scope and recognition limits ↗
IEC 62304:2006
5.6 Non-Clinical Performance Data
ANSI AAMI IEC 62304:2006/A1:2016
Medical device software - Software life cycle processes [Including Amendment 1 (2016)]
13-79 · Complete
01/14/2019
Not recorded in this export rowSummary [4] · Metadata [10]
Read scope and recognition limits ↗
IEC 62304:2015
5.6 Non-Clinical Performance Data
IEC 62304 Edition 1.1 2015-06 CONSOLIDATED VERSION
Medical device software - Software life cycle processes
13-79 · Complete
01/14/2019
Not recorded in this export rowSummary [4] · Metadata [9]
Read scope and recognition limits ↗
IEC 62304:2015
5.6 Non-Clinical Performance Data
ANSI AAMI IEC 62304:2006/A1:2016
Medical device software - Software life cycle processes [Including Amendment 1 (2016)]
13-79 · Complete
01/14/2019
Not recorded in this export rowSummary [4] · Metadata [10]
Read scope and recognition limits ↗

Prepare for your provider: the proposed protocol/report edition, its justification for your device and the complete current FDA recognition sheet. In particular, inspect exclusions for partial recognition. An edition difference does not automatically make the historical evidence unusable.

Identifier-matching method and selection limits

Match explicit ISO/IEC identifiers in selected preserved summary excerpts to the acquired, count-reconciled FDA metadata export. Preserve the historical edition mention, current snapshot designations, entry dates, recognition extent and any recorded transition-expiration date as separate facts. No title-similarity, edition-equivalence, test-mandate or transition-eligibility inference. At most twenty matched occurrences and thirty metadata rows per reference; wide matches are held for separate review.

5 of 5 matched reference occurrences shown.

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) identifierK171909 [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Generic device categoryHAL for Medical Use (Lower Limb Type) [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Recorded applicantCyberdyne, Inc. [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
FDA product codePHL [1]Dated official record fact; not proof of current commercial availability or applicability to another device.
Decision date2017-12-17 [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 date2017-06-26 [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. Recorded comparison and differences — what differs in our product?

    The summary’s comparison is a manufacturer statement about that submission. Investigate the actual design differences and cited records before considering any comparator or predicate.

    Useful evidence: Feature-by-feature differences and the underlying cited documents; no automated predicate selection.

  3. Non-clinical evidence actually described — what differs in our product?

    Treat these as documented evidence themes in this case, including any limitations or negative statements. Ask which protocols, design inputs and acceptance rationale would be justified for your product; these excerpts are not a mandatory test panel.

    Useful evidence: Existing protocols/results and design-specific evidence gaps, with standard editions and scope reviewed separately.

  4. Which edition and recognition limits would our provider rely on?

    Compare each historical reference below with the dated FDA metadata. Ask the specialist to justify the applicable scope and selected edition, read the complete supplementary sheet for partial-recognition exclusions, and investigate any recorded transition conditions. A difference in editions does not automatically make the earlier study unusable.

    Useful evidence: Proposed protocol/report edition, dated FDA recognition sheet with scope/exclusions, and a documented edition/transition rationale for the actual device.

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[103752] · record 4eff4bf7cbcd042e6584bfb01f1eb51eafde6fd17366982dfab94bcf1e17605a
  • [11] Complete results array / fda-decision-context:K171909 · record whole dataset partition

FDA 510(k) summary — K171909 ↗

Mon, 08 Jan 2018 17:21:20 GMT · retrieved 2026-10-07

Audit details: precise locators and snapshot identifiers

Source key D02 · snapshot 4fe27b804fa618ff4ff9f5f7c1c5911f0b0874ad251e5400289bb57224f26db2

  • [2] PDF page 3 · record 5dd3a170b4ec37c563b7c8f8b3ba1a33ede2e3295f95f409a433d0a68c7d957d
  • [3] PDF page 13 · record 2b4118f2412ed038ccb23adf86608df7582a4329feab6a17cccf2e359c3cbfc0
  • [4] PDF page 6 · record b316f989e8328e7dc947da10986dd737bbf60abc74775190f04ebd1604ce6d79

FDA — recognition metadata exported through the official search form ↗

Version not stated by the source · retrieved 2026-10-07

Audit details: precise locators and snapshot identifiers

Source key D02 · snapshot 94ccf56dc846c7f6d78d6ad77dc6e87d1803ac3612af01d6894949e34c4a78d8

  • [5] CSV row 876 · record a8f2c7aa5fa6c6ffe1d66d56377f30d7cbd9cdbc2078a3d67e8fdff024e2f0ca
  • [6] CSV row 877 · record 44ad0bacea9459dd513264be920199f91b017f973622203ca12b585f5bc35330
  • [7] CSV row 874 · record 71f87aec0fa1647a7281fcc86caf662d09b288c45d723e06b84f016bf65f4154
  • [8] CSV row 1013 · record f311b2eeae677be2804411b19a2cf4b76fcb796a93ce7d66236dc4a44e076aa5
  • [9] CSV row 1228 · record cb5d567e0c94ab972dba3963d8b738f40cec5fdee9610e671a60ec63d6bf4e86
  • [10] CSV row 1229 · record 3177eae036ed6aa78c37390da6cbc7c97c2347c1d13920bbe5c7316a282a51c4

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