K123553 · Zimmer, Inc. · KCY · Aug 9, 2013 · General, Plastic Surgery
Device Facts
Record ID
K123553
Device Name
ZIMMER A.T.S. 4000TS AUTOMATIC TOURNIQUET SYSTEM
Applicant
Zimmer, Inc.
Product Code
KCY · General, Plastic Surgery
Decision Date
Aug 9, 2013
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 878.5910
Device Class
Class 1
Attributes
Therapeutic
Indications for Use
The A.T.S. 4000TS Automatic Tourniquet System is intended to be used by qualified medical professionals to temporarily occlude blood flow in a patient's extremities during surgical procedures on those extremities. Tourniquets have been found useful in producing a bloodless operation field in surgical procedures involving the extremities including: Reduction of certain fractures, Kirschner wire removal, Tumor and cyst excisions, Subcutaneous fasciotomy, Nerve injuries, Tendon repair, Bone grafts, Total wrist joint replacement, Replacement of joints in the fingers, Knee joint replacements, Amputations, Replantations
Device Story
The Zimmer A.T.S. 4000TS is a pneumatic tourniquet system used by medical professionals in surgical settings to create a bloodless field. The system comprises a control unit connected via tubing to an inflatable pneumatic cuff applied to a patient's limb. The device regulates pneumatic pressure to temporarily occlude blood flow. It includes an LOP (Limb Occlusion Pressure) feature to manage pressure settings. The system is operated by qualified medical professionals; output is a pressurized cuff state. Clinical benefit is the facilitation of surgical procedures by minimizing bleeding in the operative field.
Clinical Evidence
No clinical data was required or provided for this device. Substantial equivalence was established through non-clinical performance testing, including electrical safety (IEC 60601-1, 60601-1-2, 60601-1-8), software validation (IEC 62304), and usability testing (IEC 60601-1-6, IEC 62366).
Technological Characteristics
Pneumatic tourniquet system; consists of control unit and inflatable cuff. Complies with IEC 60601-1, 60601-1-2, 60601-1-8 for electrical safety and environmental conditions. Software developed per IEC 62304:2006 and AAMI/ANSI HE-75:2009. Usability testing per IEC 60601-1-6 and IEC 62366:2007.
Indications for Use
Indicated for patients undergoing surgical procedures on extremities requiring temporary blood flow occlusion to create a bloodless field. Applicable for fracture reduction, K-wire removal, tumor/cyst excision, fasciotomy, nerve/tendon repair, bone grafts, and joint replacements/amputations. For use by qualified medical professionals.
Regulatory Classification
Identification
A pneumatic tourniquet is an air-powered device consisting of a pressure-regulating unit, connecting tubing, and an inflatable cuff. The cuff is intended to be wrapped around a patient's limb and inflated to reduce or totally occlude circulation during surgery.
Predicate Devices
Zimmer® A.T.S.® 3000 Automatic Tourniquet System (K050411)
Submission Summary (Full Text)
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K123553
Page 1 of 2
200 West Ohio Avenue Dover, OH 44622 (330) 364-0981
9 2013
AUG
Image /page/0/Picture/4 description: The image shows the logo for Zimmer. The logo consists of a large, bold letter "Z" enclosed in a circle. Below the circle, the word "zimmer" is written in a bold, sans-serif font, with all letters in lowercase.
### Summary of Safety and Effectiveness
Sponsor:
Contact Person:
Date:
Trade Name:
Product Code / Device:
Regulation Number / Description:
Predicate Device:
Device Description:
Zimmer Surgical, Inc. 200 West Ohio Avenue Dover, OH 44622
Allison Scott, RAC Regulatory Affairs Consultant Telephone: (317) 569-9500 x106 (317) 569-9520 Fax:
November 16, 2012
Zimmer® A.T.S. ® 4000TS Tourniquet System
KCY - Pneumatic tourniquet
21 CFR § 878.5910 - Pneumatic tourniquet
Zimmer® A.T.S.® 3000 Automatic Tourniquet System, K050411, cleared 09/02/2005
The Zimmer A.T.S. 4000TS Tourniquet System is a non-sterile device intended to be used by qualified medical professionals to temporarily occlude blood flow in a patient's extremities during surgical procedures on those extremities.
The system consists of the A.T.S. 4000TS control unit that is coupled to the patient with the applied part (inflatable pneumatic tourniquet cuff) via the connecting tubing. The tourniquet cuff is applied to the patient prior to the procedure beginning. The connecting tubing is attached to the inflatable tourniquet cuff and plugged into the A. T.S. 4000TS's connector ports.
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## Intended Use:
The A.T.S. 4000TS Automatic Tourniquet System is intended to be used by qualified medical professionals to temporarily occlude blood flow in a patient's extremities during surgical procedures on those extremities. Tourniquets have been found useful in producing a bloodless operation field in surgical procedures involving the extremities including:
Reduction of certain fractures, Kirschner wire removal, Tumor and cyst excisions, Subcutaneous fasciotomy, Nerve injuries, Tendon repair, Bone grafts, Total wrist joint replacement, Replacement of joints in the fingers, Knee joint replacements, Amputations, Replantations
The Zimmer A.T.S. 4000TS Automatic Tourniquet System is substantially equivalent to other legally marketed tourniquet systems, specifically the Zimmer A.T.S. 3000 Tourniquet System in that the devices are similar in design, materials, and indications for use. Additionally, the LOP feature of the Zimmer A.T.S. 4000TS Automatic Tourniquet System is substantially equivalent to the Zimmer A.T.S. 3000 Tourniquet System.
Non-Clinical Performance and Conclusions:
During the development process of the AT.S. 4000TS, the following testing was completed: Electrical safety and Environmental testing in accordance with IEC 60601-1, 60601-1-2, 60601-1-8: Software and device development was conducted in accordance with requirements of IEC 62304:2006 and AAMI/ANSI HE-75:2009; Device Usability testing was conducted in accordance with requirements of IEC 60601-1-6 and IEC 62366:2007, and Hardware and Software testing, including validation. All tests passed according to predetermined acceptance criteria.
Clinical Performance and Conclusions:
Clinical data and conclusions were not needed for this device.
# Comparison to Predicate Device:
Performance Data (Nonclinical and/or Clinical):
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Image /page/2/Picture/0 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo features a stylized depiction of an abstract symbol, resembling a person embracing or supporting another figure. The words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" are arranged in a circular pattern around the symbol.
### DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hompshire Avenue Document Control Center - WO66-G60 Silver Spring, MD 20993-0002
August 9, 2013
Allison Scott, RAC Regulatory, Affairs Consultant Zimmer Incorporated 9001 Wesleyan Road, Suite 200 Indianapolis, Indiana 46268
Re: K123553
Trade Device Name: Zimmer® A.T.S.® 4000TS Automatic Tourniquet System Regulation Number: 21 CFR 878.5910 Regulation Name: Pneumatic tourniquet Regulation Class: Class I Product Code: KCY Dated: June 27, 2013 Received: July 3, 2012
Dear Ms. Scott:
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 device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set
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Page 2 - Allison Scott, RAC
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 contact the Division of Small Manufacturers, International and Consumer Assistance at its tollfree 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" (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.html 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/ResourcesforYou/Industry/default.htm.
Sincerely yours,
# Mark N. Melkerson -S
Mark N. Melkerson Acting Director Division of Surgical Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
## 510(k) Number (if known):
### Device Name:
Zimmer® A.T.S. ® 4000TS Tourniquet System
### Indications for Use:
The A.T.S. 4000TS Tourniquet System is intended to be used by qualified medical professionals to temporarily occlude blood flow in a patient's extremities during surgical procedures on those extremities. Tourniquets have been found useful in producing a bloodless operation field in surgical procedures involving the extremities including;
Reduction of certain fractures Kirschner wire removal Tumor and cyst excisions Subcutaneous fasciotomy Nerve injuries Tendon repair Bone grafts Total wrist joint replacement Replacement of joints in the fingers Knee joint replacements Amputations Replantations AND/OR Prescription Use _X_ (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 807 Subpart C)
(Please do not write below this line - Continue on another page if needed)
Concurrence of CDRH, Office of Device Evaluation (ODE)
| DSD-DIVISION SIGN-OFF | Joshua C. Nipper | Page 15 of 3780 |
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| Division of Surgical Devices | -S | |
| 510(k) Number: | K123553 | |
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.