The Recove Rehabilitation System is software for use with the Microsoft Kinect motion tracking system that is indicated to support physical rehabilitation of adults in the clinic and at home via performance of therapist-assigned reach exercises for the upper extremities. Patient assessment, exercise guidance, and approval by the medical professional are required prior to use.
Device Story
Recovr Rehabilitation System (RRS) is a software platform utilizing Microsoft Kinect motion-tracking sensor to facilitate upper extremity rehabilitation. System includes computer, primary display, secondary monitor, and Kinect sensor. Users perform therapist-assigned reaching exercises presented as virtual reality games (e.g., carnival shooting gallery) to encourage repetitive movement. Therapist manages system via secondary monitor/keyboard/mouse. System captures kinematic data (velocity, joint angular changes) during sessions; provides audiovisual feedback to user; generates performance reports for therapist to track progress. Used in clinics or homes under professional guidance. Benefits include increased patient engagement and motivation through gamification, enabling objective tracking of rehabilitation progress.
Clinical Evidence
No clinical, animal, or biocompatibility testing performed. Substantial equivalence supported by software verification and validation testing conducted per FDA's 2005 guidance for software in medical devices.
Technological Characteristics
Software system utilizing Microsoft Kinect motion-tracking sensor. Operates on standard computer hardware with primary and secondary displays. Input: optical motion tracking. Output: audiovisual game-based feedback and kinematic performance reports. Software level of concern: minor. Non-sterile, non-single use.
Indications for Use
Indicated for physical rehabilitation of adults in clinic or home settings via therapist-assigned upper extremity reach exercises. Requires prior patient assessment, exercise guidance, and approval by a medical professional.
Regulatory Classification
Identification
Measuring exercise equipment consist of manual devices intended for medical purposes, such as to redevelop muscles or restore motion to joints or for use as an adjunct treatment for obesity. These devices also include instrumentation, such as the pulse rate monitor, that provide information used for physical evaluation and physical planning purposes., Examples include a therapeutic exercise bicycle with measuring instrumentation, a manually propelled treadmill with measuring instrumentation, and a rowing machine with measuring instrumentation.
Special Controls
*Classification.* Class II (special controls). The device, when it is a measuring exerciser or an interactive rehabilitation exercise device for prescription use only, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 890.9.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
September 18, 2015
Recovr, Inc % Kathryn Cole Principle Translational Science Solutions LLC 92 Hasell Street, Suite 401 Charleston, South Carolina 29401
Re: K151446
Trade/Device Name: Recovr Rehabilitation System Regulatory Class: Unclassified Product Code: LXJ Dated: August 4, 2015 Received: August 10, 2015
Dear Kathryn Cole:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration. listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting (reporting of medical devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (OS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to
http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.
You may obtain other general information on your responsibilities under the Act from the Division of Industry and Consumer Education at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address
http://www.fda.gov/MedicalDevices/ResourcesforYou/Industry/default.htm.
Sincerely yours,
Carlos L. Pena -5D/Δ
Carlos L. Peña, PhD, MS Director Division of Neurological and Physical Medicine Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K151446
Device Name Recovr Rehabilitation System
### Indications for Use (Describe)
The Recove Rehabilitation System is software for use with the Microsoft Kinect motion tracking system that is indicated to support physical rehabilitation of adults in the clinic and at home via performance of therapist-assigned reach exercises for the upper extremities. Patient assessment, exercise guidance, and approval by the medical professional are required prior to use.
| Type of Use (Select one or both, as applicable) | |
|-------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| <span style="font-family: Arial, sans-serif;"><input checked="true" type="checkbox"/></span> Prescription Use (Part 21 CFR 801 Subpart D) | <span style="font-family: Arial, sans-serif;"><input type="checkbox"/></span> Over-The-Counter Use (21 CFR 801 Subpart C) |
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#### 5.0 510(K) SUMMARY
| Submission Date: | September 17, 2015 |
|------------------|--------------------|
|------------------|--------------------|
# Submitter Information:
| Submitted By: | Recovr, Inc.<br>Post Office Box 772<br>Clemson, SC 29633 |
|---------------|----------------------------------------------------------|
|---------------|----------------------------------------------------------|
- Contact Person: Austen Hayes, MS Chief Executive Officer Tel: (843) 425-1606 Email: austen@recovrinc.com
# Device Information:
| Trade Name: | Recovr Rehabilitation System |
|----------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Common Name: | Software system utilizing optical position recording for<br>rehabilitation exercises |
| Classification Name: | System, Optical Position/Movement Recording (Product<br>Code LXJ) |
| Regulatory Class: | Unclassified |
| Predicate Device: | Jintronix Rehabilitation System (K130847)<br>Jintronix, Inc.<br>Unclassified (Product Code LXJ) |
| Device Description: | The Recovr Rehabilitation System (RRS) is a software<br>system that presents games to facilitate the completion<br>of therapist designed and prescribed upper extremity<br>repetitive reaching exercises and that collects data for<br>the therapist on the user's game play. The system was<br>designed in collaboration with an experienced<br>neurorehabilitation occupational therapist and<br>rehabilitation research team. The RRS is intended for<br>use in the clinic or at home. Patient assessment,<br>exercise guidance, and approval by the medical<br>professional are required prior to use.<br><br>The system consists of software, a computer, a primary<br>display monitor, a secondary monitor, and a Microsoft<br>Kinect motion-tracking sensor. Users sit on a bench or<br>stand 6-8 feet away from the primary display monitor.<br>The Kinect sensor is placed along the top or bottom<br>edge of the primary display monitor, and the therapist<br>controls the system from a secondary monitor, mouse,<br>and keyboard off to the side of the primary display<br>monitor. The games are based on a traditional carnival |
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shooting gallery, with targets that pop–up to present reaching tasks. The virtual reality environment incorporates video game principles to engage and motivate users to perform the amount of rehabilitation assigned by the rehabilitation therapist. The system collects data on participant movement and actions throughout each session that allows therapists to track participant performance and improvement across therapy sessions.
The device is not supplied sterile or intended to be sterilized by the operator prior to use, and is not intended for single use.
Indications for Use: The Recovr Rehabilitation System is software for use with the Microsoft Kinect motion tracking system that is indicated to support physical rehabilitation of adults in the clinic and at home via performance of therapistassigned reach exercises for the upper extremities. Patient assessment, exercise quidance, and approval by the medical professional are required prior to use.
> The Indications for Use statement for RRS is not identical to the predicate device in that the Indications for Use for the subject device do not include "remotely accessible patient performance metrics for the medical professional" at this time. That minor difference does not affect the intended use of the subject device as a software system utilizing optical position recording for physical rehabilitation exercises nor do they affect the safety and effectiveness of the device relative to the predicate when used as labeled.
Comparison to The RRS and the predicate Jintronix Rehabilitation Predicate Device: System (JRS) are substantially equivalent in terms of intended use and performance and technology. Both platforms are software systems utilizing optical position recording for physical rehabilitation exercises that use the Microsoft Kinect motion tracking system. Both systems require patient assessment and exercise quidance from a clinical or medical professional prior to any exercise prescription. Both devices track the movements assigned by the clinician, providing audiovisual feedback and graphic representations of the user movement, as well as reporting to the clinician on kinematic parameters like velocity and joint angular changes during movement. The devices are also identical in safety, as they are software platforms for use with the Microsoft Kinect motion tracking system. At this point in time, the subject device does not include remotely accessibly patient performance metrics for the
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medical professional, but that does not affect the safety or effectiveness of the device compared to the predicate.
Performance Testing: No mandatory performance standards have been established for this device (Section 514 of the Act). Software testing was conducted to verify performance in accordance with FDA's May 2005 quidance document entitled, "Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices." The software for this device was considered as a "minor" level of concern, as there is no risk of harm to the user or operator in the case of device failure or latent flaw.
> No biocompatibility, electrical safety and electromagnetic compatibility, animal, or clinical testing was deemed necessary to support the current finding of substantial equivalence to the predicate Jintronix device.
Conclusion: The RRS falls within the generic type of device regulated by the LXJ Product Code (System, Optical Position/Movement Recording). Differences in the design and presentation of the RRS from the predicate device do not affect the safety, effectiveness, or performance of the subject device for its intended use. Software verification and validation demonstrate that the subject device should perform as intended in the specified use conditions. Therefore, the RRS is substantially equivalent to the Jintronix Rehabilitation System.
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.