K113275 · Wonjin Mulsan Co., Ltd. · IRP · Feb 27, 2012 · Physical Medicine
Device Facts
Record ID
K113275
Device Name
COMPRESSIBLE LIMB THERAPY SYSTEM
Applicant
Wonjin Mulsan Co., Ltd.
Product Code
IRP · Physical Medicine
Decision Date
Feb 27, 2012
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5650
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The device is indicated for use by medical professionals and patients at home, who are under medical supervision, in treating many conditions, such as: Primary lymphedema, edema following trauma and sport injures, Postimmobilization edema, Venous insufficiencies, Lymphedema.
Device Story
Power-Q1000 Premium is a pneumatic pressure treatment system using four-chamber nylon garments for sequential limb compression. It aims to improve blood circulation and prevent blood clots. The device features a power unit with visual status and fault indicators, allowing variable pressure (0-240 mmHg), cycle time, and gradient settings. It is intended for use by medical professionals or patients at home under medical supervision. The system operates by repeatedly inflating sleeves to provide sequential compression therapy. The healthcare provider or patient sets the mode (A, B, C, D, E), interval, and duration (5-99 minutes) to manage edema and venous conditions. The device provides therapeutic benefit by facilitating lymphatic and venous return.
Clinical Evidence
Bench testing only. The device was tested for compliance with EN60601-1 (General safety), EN60601-2-10 (Nerve and muscle stimulators), and EN60601-1-2 (Electromagnetic compatibility). No clinical data provided.
Technological Characteristics
Pneumatic sequential compression system; 4-chamber nylon applicator garments; pressure range 0-240 mmHg; variable cycle time and gradient settings. Complies with EN ISO14971, EN60601-1, EN60601-2-10, and EN60601-1-2. Power source 220-240V 50/60Hz.
Indications for Use
Indicated for medical professionals and patients under medical supervision for treatment of primary lymphedema, edema following trauma/sports injuries, postimmobilization edema, venous insufficiencies, and lymphedema. Contraindicated for acute pulmonary edema, acute thrombophlebitis, acute congestive cardiac failure, acute infections, deep vein thrombosis, pulmonary embolism, wounds/lesions/tumors at application site, conditions where increased venous/lymphatic return is undesirable, and bone fractures/dislocations at application site.
Regulatory Classification
Identification
A powered inflatable tube massager is a powered device intended for medical purposes, such as to relieve minor muscle aches and pains and to increase circulation. It simulates kneading and stroking of tissues with the hands by use of an inflatable pressure cuff.
Predicate Devices
Compressible Limb Therapy system (WHF-324 POWER-Q1000 PLUS) (K100656)
Submission Summary (Full Text)
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FEB 2 7 2012
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# 510(k) Summary [As required by 807.92(c)]
Date of issue: Jan 25, 2012
## A. 510k Number
- B. Applicant/Applicant Company Name: BSR KOREA Corp. Company Name: DSR ROREA Corp:
Address: Migun Techno World 2 C-dong, 524, #533-1 Yongsan-dong, Yuseong-gu, Daejeon, KOREA. Tel: 82-42-476-2977 Fax:82-42-476-2978 Contact person: Eileen Yang
- C. Proprietary and Established Names: WONJIN MULSAN Co., Ltd. Address: 10B-7L 623-6 Namchon-dong, Namdong-gu Incheon, Korea
- D. Regulatory information
- 1. Classification Name: Massager, Powered Inflatable Tube
- 2. Common/Usual Name: Powered inflatable Tube Massager
- 3. Proprietary Name: Compressible Limb Therapy System (Power-Q1000 Premium)
- 4. Classification /Product Code: Class 2, IRP(21 CFR 890.5650)
- E. Intended Use
Power-Q1000 Premium is intended for use by medical professionals and patients at home, Fower-Q1000 Trennant is meeting many conditions, such as: Primary lymphedema, Edema following trauma and sport injuries, Postimmobilization edema, Venous insufficiencies, Lymphedema.
#### F. Device Description
Device Deseription
Power Q1000 Premium is used with four chamber garments for full leg, and period has its own variable duration pressure, cycle time and gradient setting. Power unit features visual operation statusand fault indicators.
| Name | Power-Q1000 Premium |
|-----------------|--------------------------------------------------------------------------------------------------------------------------|
| Pressure (mmHg) | 0~240mmHg |
| Mode | A, B, C, D(D1, D2, D3, D4), E selection. (The initial set : Mode A) |
| Interval | Interval : 0, 5, 10, 15, 20, 25, 30 sec, selection. (The initial set :<br>0sec) |
| Time(min) | Time(min) : 5~99min, selection. (The initial set : 15min) |
| Pressure Time | Pressure : 0~240mmHg, selection (The initial set : 200mmHg)<br>0~240 : A, B, D(D1, D2, D3, D4) Mode<br>0~130 : C, E Mode |
Technological characteristics
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K113275
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- H. Substantial Equivalence Information
- l. Predicate Device
- -510(k) Number: 100656
-510(R) Namber: 100050
-Name: Compressible Limb Therapy system(WHF-324 POWER-Q1000 PLUS) -Classification: 2
- 2. Comparison with predicate _________________________________________________________________________________________________________________________________________________
| Model Name | Power Q1000 Premium | WHF-324 (POWER-Q1000) (predicate device) |
|------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 510(k) number | None yet | k100656 |
| Classification | Class II Device/ IRP (21 CFR 890. 5650) | Class II Device/ IRP (21 CFR 890. 5650) |
| Intended use | The device is indicated for use by medical professionals and patients at home, who are under medical supervision, in treating many conditions, such as: Primary lymphedema, edema following trauma and sport injures, Postimmobilization edema, Venous insufficiencies, Lymphedema. | The device is indicated for use by medical professionals and patients at home, who are under medical supervision, in treating many conditions, such as: Primary lymphedema, edema following trauma and sport injures, Postimmobilization edema, Venous insufficiencies, Lymphedema. |
| Description | Power Q1000 Premium is a pneumatic pressure treatment system that repeats expansion of sleeves to help blood circulation and prevent blood clots or clogs. | Power Q1000 PLUS is a pneumatic pressure treatment system that repeats expansion of sleeves to help blood circulation and prevent blood clots or clogs |
| Standard | EN ISO14971<br>EN60601-1<br>EN60601-2-10<br>EN60601-1-2 | EN ISO14971<br>EN60601-1<br>EN60601-2-10<br>EN60601-1-2 |
| Indications | Primary lymphedema, Edema following trauma and sport injuires, postimmobilization edema, Venous insufficiencies, Lymphedema. | Primary lymphedema, Edema following trauma and sport injuires, postimmobilization edema, Venous insufficiencies, Lymphedema. |
| Contraindications | Acute pulmonary edema<br>Acute throubophlebitis<br>Acute congestive cardiac failure<br>Acute infections, Deep vein thrombosis<br>Episodes of pulmonary embolism Wounds, lesions, or turmors at or in the vicinity of application | Acute pulmonary edema<br>Acute throubophlebitis<br>Acute congestive cardiac failure<br>Acute infections, Deep vein thrombosis<br>Episodes of pulmonary embolism Wounds, lesions, or turmors at or in the vicinity of application |
| | Where increased venous and<br>lymphatic return is undesirable,<br>Bone fractures or dislocation at<br>or in the vicinity of application | Where increased venous and<br>lymphatic return is undesirable,<br>Bone fractures or dislocation at<br>or in the vicinity of application |
| Mode of Compression | Sequential | Sequential |
| Power source | | Electricity Supply: 220-240V<br>50/60HZ |
| Therapy Time | 0~99 minutes | 0-30 minutes |
| Maximum and<br>Minimum Pressure | 0-240mm Hg | 0-300mm Hg |
| Number of Chambers | 4 Chambers for each unit | 4 Chambers for each unit |
| Compression<br>Applicator Garments | Nylon | Nylon |
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### J. Performance characteristics
The Model Power-Q1000 Premium has tested and meets the requirements of the following standard.
-EN60601-1, Medical electrical equipment - Part 1: General requirements for safety (IEC 60601-1:1988/A1:91/A2:9s)
-EN60601-2-10, Medical electrical equipment - Part 2-10: Particular requirements for the safety of nerve and muscle stimulators
-EN60601-1-2, Medical electrical equipment - Part 1: General requirements for safety -Collateral standard: Electromagnetic compatibility
#### K. Conclusion
Compressible Limb Therapy System WHF-324 (POWER-Q1000 PLUS)) has substantial equivalent intended use as the-market-cleared WHF-314(POWER-Q1000) and has substantial equivalent technological and performance characteristics. After analyzing Substantial equivately "connerogen" it is the conclusion of WONJIN MULSAN Co., Idol that Compressible Limb Therapy System (WHF-324 (POWER-Q10 PLUS)) is as safe and effective as the predicate devices, has few technological differences, but there are no new and chective as the productions any new safety and/or effectiveness concerns. mentations for about that it substantially equivalent to the predicate devices
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# DEPARTMENT OF HEALTH & HUMAN SERVICES
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### Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
FEB 2 7 2012
Wonjinmulsan Co., Ltd. % BSR Korea Ms. Eileen Yang D-524 Migun Techno World 2 533-1 Yongsan-Dongyuseong-Gu Daejeon Republic of Korea KS
Re: K113275
Trade/Device Name: Compressible Limb Therapy System Regulation Number: 21 CFR 890.5650 Regulation Name: Powered Inflatable Tube Massager Regulatory Class: Class II Product Code: IRP Dated: February 14, 2012 Received: February 14, 2012
Dear Ms. Yang:
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 I ou may , arons 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.
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# Page 2 - Ms. Eileen Yang
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 device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) 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 go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR 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 Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 796-7100 or at its Internet address http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.
Sincerely yours.
Mark N. Melkerson Director Division of Surgical, Orthopedic' and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
all
Enclosure
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K113275
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# INDICATIONS FOR USE
510(k) Number (if known):
Model No. POWER-Q1000 Premium Device Name: Compressible Limb Therapy System
Indications for Use:
The device is indicated for use by medical professionals and patients at home, who are under medical supervision, in treating many conditions, such as: Primary lymphedema, edema following trauma and sport injures, Postimmobilization edema, Venous insufficiencies, Lymphedema.
Prescription Use _ x (Part 21 CFR 801 Subpart D)
. AND/OR
Over-The-Counter Use _ (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Surgical, Orthopedic,
and Restorative Devices
Page 1 of 1
510(k) Number. K113275
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.