K081247 · Ito Co., Ltd. · ITH · Aug 25, 2008 · Physical Medicine
Device Facts
Record ID
K081247
Device Name
TM-400
Applicant
Ito Co., Ltd.
Product Code
ITH · Physical Medicine
Decision Date
Aug 25, 2008
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 890.5900
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The TM-400 device is intended to be used by medical professionals and facilities including in-patient and out-patient hospitals and clinics, chiropractors, physical therapists, sports rehabilitation clinics, occupational therapists, and other qualified users according to the detailed indications for use. Sale of the TM-400 is restricted to a licensed physician or licensed practitioner, or on the order or prescription of a physician or licensed practitioner.
Device Story
TM-400 is a software-controlled electro-mechanical powered traction unit used in clinical settings (hospitals, clinics, rehab centers) by medical professionals. Device applies static, intermittent, or cyclical traction forces to skeletal/muscular structures via a cable hook and harness system. Features include automatic force calibration, five selectable traction speeds, eight traction modes, and a remote patient-controlled shutoff switch. Internal memory stores up to 30 treatment patterns. High-visibility LCD screen displays treatment parameters. Clinicians use the device to relieve pressure on spinal/joint structures, reduce pain, and improve mobility. Benefits include non-invasive pain relief and controlled mobilization of skeletal structures.
Clinical Evidence
Bench testing only. Verification and validation testing conducted on final production units to confirm performance specifications and safety. Compliance with UL60601-1 (electrical safety) and IEC60601-1-2 (electromagnetic compatibility) verified by TUV.
Technological Characteristics
Powered electro-mechanical traction system. Features: LCD interface, remote patient shutoff, internal memory for 30 patterns, automatic force calibration. Connectivity: Standalone unit. Software: Embedded, software-controlled. Standards: UL60601-1, IEC60601-1-2.
Indications for Use
Indicated for patients requiring traction and mobilization of skeletal structures and muscles to relieve pain of skeletal or muscular origin (cervical, thoracic, lumbar, hip, wrist, shoulder). Treats conditions including disc herniation/degeneration, facet syndrome, muscle spasms, spinal root impingement, pinched nerves, compression fractures, and hypomobility. Provides static, intermittent, progressive, regressive, and cyclical distraction forces.
Regulatory Classification
Identification
Powered traction equipment consists of powered devices intended for medical purposes for use in conjunction with traction accessories, such as belts and harnesses, to exert therapeutic pulling forces on the patient's body.
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# K081247 (pg1/3)
MANUFACTURERS & EXPORTERS established in 1916 TOYOTAMA-MINAMI, NERIMA-KU, TOKYO, 176-0014 JAPAN
AUG 25 2008
# 510(k) Summary
# TM-400
# Summary of Safety and Effectiveness Information Supporting a Substantially Equivalent Determination
| Submitter Name: | ITO CO., LTD. |
|------------------------|---------------------------------------------------|
| | 3-3-3 TOYOTAMA-MINAMI, NERIMA-KU |
| | TOKYO, 176-0014 JAPAN |
| | TEL: (+81) 3-3994-4619 |
| | FAX: (+81) 3-3994-8384 |
| Contact Name: | KENNETH L. BLOCK, RAC |
| Date Prepared: | August 15, 2008 |
| Proprietary Name: | TM-400 |
| Common Name: | Powered Traction Device |
| Classification Number: | 21 CFR 890.5900 |
| Class: | II |
| Predicate Devices: | K992545 - TM-300 Traction System (ITO. CO., LTD.) |
| | K053223 - TX Traction (CHATTANOOGA GROUP) |
#### Device Description:
The TM-400 is a simple to use powered traction unit that offers static, intermittent, and cycle traction with user-definable hold, rest and treatment times. The unit consists of a software-controlled electro-mechanical traction system. The physical characteristics of the TM-400 are substantially equivalent to the predicate traction devices including size, weight, materials of construction, and user interface. In addition, the unit has incorporated similar features as the predicate devices such as:
- ア Automatic calibration of traction force
- > An internal memory that stores up to 30 treatment patterns
- A Traction speed selectable from five preset values
- 公 Eight traction modes
- A Remote patient-controlled treatment shutoff switch
- ﺮ Large and high-visibility LCD screen
Section 6
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The TM-400 traction device operates by attaching the cable hook to a harness accessory, which is in turn attached to the patient treatment area, for traction and mobilization of skeletal muscles according to the detailed indications of use. Detailed comparison of specific TM-400 features and characteristics to the predicate devices is contained in Section 8 of this submission.
#### Intended Use:
The TM-400 device is intended to be used by medical professionals and facilities including in-patient and out-patient hospitals and clinics, chiropractors, physical therapists, sports rehabilitation clinics, occupational therapists, and other qualified users according to the detailed indications for use. Sale of the TM-400 is restricted to a licensed physician or licensed practitioner, or on the order or prescription of a physician or licensed practitioner.
#### Indications for Use:
Use of the TM-400 powered traction device is indicated for the following:
- Providing standard therapeutic and custom user-defined treatments in static, intermittent, . progressive, regressive, cyclical and combination distraction forces to relieve pressures on structures that may be causing pain of skeletal or muscular origin (cervical, thoracic, lumbar, hip, wrist, shoulder).
- . Providing traction and mobilization of skeletal structures and skeletal muscles.
- Relieving peripheral radiation / sciatica and pain associated with: .
- Discs:
- > Protruding, bulging, herniated and prolapsed discs
- > Degenerative disc disease
- > Discogenic pain
Facets:
- > Facet syndrome
- > Posterior facet syndrome
- � Acute facet problem
#### Muscles & Joints:
- > Muscle pain and spasms
- > Degenerative joint disease
#### Spinal Structures:
- > Spinal root impingement
- > Pinched nerves
- > Compression fractures
Pain:
> Back, lower back, neck, joint, sciatic and radicular pain
Mobility & Flexibility:
- > Hypomobility
- > Limited spinal and joint flexibility
#### Cited Standards to Determine Substantially Equivalence:
Testing was carried out to assure compliance to FDA recognized electrical safety standards. ITO CO., LTD was issued a certificate of compliance to the UL60601-1 standards by TUV, which appears in Section 13 of this submission. In addition, ITO CO., I.TD was issued an Attestation of Conformity for the TM-400 in regard to the 11:C60601-1-2 standards for electromagnetic compatibility by 1'UV, which appears in Section 13 of this submission.
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#### Non-Clinical Testing:
Non-clinical verification and validation testing was conducted on final TM-400 production units, and the results of such testing appear in Section 12 and Section 14 of this submission.
#### Truthful and Accuracy Statement:
Signed by a corporate management representative of the required statement attesting to the truthfulness and accuracy of the information contained in Section 7 of this submission.
#### Further Information:
Please contact the following individual to request any further information regarding this submission:
Kenneth L. Block, RAC Official Correspondent (ITO CO., LTD.) Ken Block Consulting 1201 Richardson Dr. Suite 140 Richardson, TX 75080 TEL: 972-480-9554 FAX: 972-767-4325 EMAIL: ken@kenblockconsulting.com
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Image /page/3/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which features a staff with a snake winding around it, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular pattern around the symbol. The logo is presented in black and white.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
AUG 2 5 2008
ITO Co., Ltd. % Ken Block Consulting Mr. Kenneth L. Block, RAC 1201 Richardson Drive, Suite 140 Richardson, Texas 75080
Re: K081247
Trade/Device Name: TM-400 Regulation Number: 21 CFR 890.5900 Regulation Name: Power traction equipment Regulatory Class: II Product Code: ITH Dated: July 7, 2008 Received: July 8, 2008
Dear Mr. Block:
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. Iisting of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such 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); 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.
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### Page 2 - Mr. Kenneth L. Block, RAC
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Center for Devices and Radiological Health's (CDRH's) Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding postmarket surveillance, please contact CDRH's Office of Surveillance and Biometric's (OSB's) Division of Postmarket Surveillance at (240) 276-3474. For questions regarding the reporting of device adverse events (Medical Device Reporting (MDR)), please contact the Division of Surveillance Systems at (240) 276-3464. You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Arsistance at toll-free number (800) 638-2041 or (240) 276-3150 or the Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours.
Mark M. Millerson
- Mark N. Melkerson Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
# 510(k) Number (if known): K08 1247 (pg 1/ 1)
## Device Name: TM-400
## Indications for Use:
Use of the TM-400 powered traction device is indicated for the following:
- Providing standard therapeutic and custom user-defined treatments in static, intermittent, . progressive, regressive, cyclical and combination distraction forces to relieve pressures on structures that may be causing pain of skeletal or muscular origin (cervical, thoracic, lumbar, hip, wrist, shoulder).
- Providing traction and mobilization of skeletal structures and skeletal muscles. .
- . Relieving peripheral radiation / sciatica and pain associated with:
Discs:
- A Protruding, bulging, herniated and prolapsed discs
- A Degenerative disc disease
- A Discogenic pain
Facets:
- A Facet syndrome
- A Posterior facet syndrome
- Acute facet problem A
Muscles & Joints:
- Muscle pain and spasms A
- Degenerative joint disease A
Spinal Structures:
- Spinal root impingement A
- a Pinched nerves
- A Compression fractures
## Pain:
- Back, lower back, neck, joint, sciatic and radicular pain A
Mobility & Flexibility:
- > Hypomobility
- > Limited spinal and joint flexibility
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 IF NEEDED)
Concurrence of CDHR, Office of Device Evaluation (ODE)
Raubare Buchenu
(Division Sign Off)
Division of Gener Restorative. and Neurological Devices
510(k) Number K081247
TM-400
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.