K200722 · QT Medical, Inc. · DSA · Jun 3, 2021 · Cardiovascular
Device Facts
Record ID
K200722
Device Name
PCA-C1 series Patient Cable
Applicant
QT Medical, Inc.
Product Code
DSA · Cardiovascular
Decision Date
Jun 3, 2021
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 870.2900
Device Class
Class 2
Indications for Use
PCA-C100 Patient Cable is intended to be used with QT ECG device. The Patient Cable is used to connect electrodes placed at appropriate sites on the patient to an ECG device for general diagnostic evaluation by healthcare professionals.
Device Story
The PCA-C100 Patient Cable is a reusable ECG accessory used to transmit cardiac electrical signals from electrodes on the patient's body to the QT ECG device (K180157). The cable consists of three integrated parts: snaps for electrode connection, leadwires, and a trunk cable that interfaces with the ECG device. It is used in clinical settings by healthcare professionals to facilitate diagnostic ECG evaluation. By providing a secure, safe electrical connection between the patient and the ECG monitor, the cable enables the acquisition of cardiac signals necessary for clinical decision-making. The device is non-sterile and designed for repeated use.
Clinical Evidence
No clinical data was performed. Safety and effectiveness were demonstrated through bench testing, including biocompatibility (ISO 10993-5, ISO 10993-10), electrical safety (IEC 60601-1), and performance testing per ANSI/AAMI EC53:2013.
Technological Characteristics
Reusable ECG patient cable; materials include shielded/unshielded copper with TPU jacket. Components: snaps, leadwires, and trunk cable. Connectivity: proprietary interface to QT ECG device. Standards: ANSI/AAMI EC53:2013, IEC 60601-1:2005/(R)2012. Non-sterile.
Indications for Use
Indicated for use by healthcare professionals to connect electrodes placed on a patient to a QT ECG device for general diagnostic evaluation.
Regulatory Classification
Identification
A patient transducer and electrode cable (including connector) is an electrical conductor used to transmit signals from, or power or excitation signals to, patient-connected electrodes or transducers.
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June 3, 2021
QT Medical, Inc. Ruey-Kang Chang CEO 1360 Valley Vista Dr., Suite 203 Diamond Bar, California 91765
Re: K200722
Trade/Device Name: PCA-C1 series Patient Cable Regulation Number: 21 CFR 870.2900 Regulation Name: Patient Transducer And Electrode Cable (Including Connector) Regulatory Class: Class II Product Code: DSA Dated: May 19, 2021 Received: June 1, 2021
Dear Ruey-Kang Chang:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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
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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 of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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 https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Jennifer Shih Kozen Assistant Director Division of Cardiac Electrophysiology, Diagnostics and Monitoring Devices Office of Cardiovascular Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K200722
Device Name
PCA-C100 Patient Cable
Indications for Use (Describe)
PCA-C100 Patient Cable is intended to be used with QT ECG device. The Patient Cable is used to connect electrodes placed at appropriate sites on the patient to an ECG device for general diagnostic evaluation by healthcare professionals.
| Type of Use (Select one or both, as applicable) | <span> <span style="padding-right: 20px;"> <input checked="true" type="checkbox"/> Prescription Use (Part 21 CFR 801 Subpart D) </span> <span> <input type="checkbox"/> Over-The-Counter Use (21 CFR 801 Subpart C) </span> </span> |
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QT Medical, Inc. PCA-C100 Patient Cable Traditional 510(k) 510(k) Summary
510(k) Summary
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## 510(k) SUMMARY
| 5.1 | Type of Submission: | Traditional 510(k) |
|-----|---------------------|--------------------------------------------------------------|
| 5.2 | Date of Summary: | 02/20/2020 |
| 5.3 | Submitter: | QT Medical, Inc. |
| | Address: | 1360 Valley Vista Dr., Suite 203, Diamond Bar, CA 91765, USA |
| | Phone: | +1 909 323 0007 |
| | Fax: | +1 310 755 3108 |
| | Contact: | Ruey-Kang Chang |
| | | (rk.chang@qtmedical.com) |
#### 5.4 Identification of the Device:
| Proprietary/Trade name: | PCA-C100 Patient Cable |
|------------------------------|------------------------------------------------------------------|
| Classification Product Code: | DSA |
| Regulation Number: | 870.2900 |
| Regulation Description: | Patient transducer and electrode cable<br>(including connector). |
| Review Panel: | Cardiovascular |
| Device Class: | II |
#### ર્સ્ડ Identification of the Predicate Device:
| Predicate Device Name: | Cable / lead-wire |
|------------------------------|----------------------------------------------|
| Manufacturer: | Shenzhen Med-link Electronics Tech Co., Ltd. |
| Classification Product Code: | DSA |
| Regulation number: | 870.2900 |
| Device Class: | II |
| 510(k) Number: | k120010 |
#### 5.6 Indications for Use of the Device
### Indication for Use:
PCA-C100 Patient Cable is intended to be used with QT ECG device. The Patient Cable is used to connect electrodes placed at appropriate sites on the patient to an ECG device for general diagnostic evaluation by healthcare professionals.
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#### 5.7 Device Description
The PCA-C100 Patient Cable is a reusable ECG patient cable that is used to transmit cardiac electrical signals (ECG) from electrodes, which are affixed to the patient's body for both diagnostic purposes.
The PCA-C100 Patient Cable is a crucial part of the system used diagnose the cardiac electrical signal (ECG). It allows a safe connection between the electrodes on the patient and QT ECG (K180157).
The PCA-C100 Patient Cable is composed of three components:
- . Snap - Connected with Leadwire and commercial ECG electrode.
- . Leadwire - fitted with Trunk, and connected with ten Snaps.
- . Trunk - Fitted with two ends:
- ם one of them connects the QT ECG (K180157); and
- ם the other end connects the Leadwires.
#### 5.8 Non-clinical Testing
A series of safety and performance tests were conducted on the subject device, PCA-C100 Patient Cable.
#### ● Biocompatibility
- In Vitro Cytotoxicity Test
- White Rabbit Skin Irritation Test
- Skin Sensitization Study (Maximization Test) i
#### . Electromagnetic compatibility and electrical safety tests
- Electrical Safty Test
- ANSI AAMI EC53:2013
ECG Trunk Cables And Patient Leadwires
- ANSI AAMI 60601-1: ES60601-1:2005/(R)2012 And A1:2012
C1:2009/(R)2012 And A2:2010/(R)2012 (Consolidated Text) Medical Electrical Equipment - Part 1 : General Requirements For Basic Safety And Essential Performance (IEC 60601-1:2005, MOD)
- Safety and Essential Performance of Electrocardiographs
- . Leadwires to trunk cable interconnection
- ANSI AAMI EC53:2013, ECG Trunk Cables And Patient Leadwires
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OT Medical, Inc. PCA-C100 Patient Cable
e,
#### ● Performance & Shelf life
- Shelf life testing is not applicable since the PCA-C100 Patient Cable is reusable.
- Performance testing - Bench was conducted on the PCA-C100 Patient Cable according with established protocols and test results confirm that the final product met the requirements for the safety and performance standards and it's intended use.
- Performance testing - Clinical is not required and was not performed to demonstrate safty and effectiveness of PCA-C100 Patient Cable.
- Performance testing - Animal is not required and was not performed to demonstrate safty and effectiveness of PCA-C100 Patient Cable.
All the test results demonstrate PCA-C100 Patient Cable meets the requirements of its predefined acceptance criteria and intended use, and is substantially equivalent to the predicate device.
#### 5.9 Substantial Equivalence Determination
The PCA-C100 Patient Cable submitted in this 510(k) file is substantially equivalent in intended use, technology/mechanism of action, safety and performance to the cleared device, Cable / lead-wire (K120010). Differences between the devices cited in this section do not raise any new issue of substantial equivalence.
| Item | Subject device | Predicate device | |
|--------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer | QT Medical, Inc. | Shenzhen Med-link<br>Electronics Tech Co., Ltd. | |
| Trade Name | QT ECG | Cable / lead-wire | Substantial equivalence<br>determination |
| Common Name | Cable / lead-wire | Cable / lead-wire | |
| Device Model | PCA-C100 | VA018BCA | |
| 510(k) No. | (to be assigned) | K120010 | |
| Product Code | DSA | DSA | Identical |
| Regulation Number | 870.2900 | 870.2900 | Identical |
| Item | Subject Device | Predicate device | Substantial<br>equivalence<br>determination |
| Indications for<br>Use | PCA-C100 Patient Cable<br>is intended to be used<br>with QT ECG device. The<br>Patient Cable is used to<br>connect electrodes<br>placed at appropriate<br>sites on the patient to<br>an ECG device for<br>general diagnostic<br>evaluation by healthcare<br>professionals. | The Shenzhen Med-link<br>Cable / lead-wire are<br>intended to be used with<br>ECG, EKG, Sp02 and<br>Invasive Blood Pressure<br>monitoring devices. The<br>Cable / lead-wire are used<br>to connect electrodes,<br>catheters, and/or sensors<br>placed at appropriate sites<br>on the patient to a<br>monitoring device for<br>general monitoring and/or<br>diagnostic evaluation by<br>healthcare professional. | Equivalent<br>PCA-C100 Patient Cable<br>is used with a specified<br>ECG device (QT ECG) and<br>can not be used with a<br>defibrillator. The<br>predicate has various<br>types connect to various<br>devices, like ECG, EKG,<br>and Spo2 and invasive<br>blood pressure<br>monitoring devices.<br>The differences in<br>indications for use do<br>not change the device's<br>intended use to connect<br>electrodes placed at<br>appropriate sites on the<br>patient to a general<br>diagnostic evaluation<br>device by healthcare<br>professionals. |
| Patent Usage | Reusable | Reusable | Identical |
| Anatomical Site | The ECG cable attached<br>to sensors places at<br>standard specified<br>locations on the chest<br>wall. | The ECG and EKG cable<br>attached to sensors places<br>at standard specified<br>locations on the chest wall. | Identical |
| Design /<br>Appearance | ECG and EKG Cable<br>with connector (lead<br>wire, electrode snapper) | ECG and EKG Cables with<br>various connectors<br>(monitor, truck / lead wire,<br>electrode grabber &<br>snapper) | Equivalent<br>PCA-C100 Patient Cable<br>differs in that it has only<br>one type to connect a<br>specified device (QT<br>ECG), and only one type<br>(snapper) to connect<br>with electrodes. |
| Item | Subject Device | Predicate device | Substantial<br>equivalence<br>determination |
| Cable Length | 550mm (limb lead)<br>350mm (chest lead) | Various specified<br>3060mm<br>(model:VA008BBA) | Equivalent<br>Since the main device<br>(QT ECG) is closer to<br>the patient, the cable<br>length is shorter than<br>the predicate device.<br>Both devices provide<br>adequate length to<br>connect with the main<br>device and electrode. |
| Wire Material | Shielded & Unshielded<br>Copper with TPU Jacket | Shielded & Unshielded<br>Copper with PVC or TPU<br>Jacket | Identical |
| Sterility | Non sterile | Non sterile | Identical |
| Biocompatibility<br>Evaluation | All the patient contracting<br>materials are evaluated by<br>the biocompatibility<br>standard ISO 10993-5,<br>ISO 10993-10 | All the patient contracting<br>materials are evaluated by<br>the biocompatibility<br>standard ISO 10993-5, ISO<br>10993-10 | Identical |
| Connector<br>Retention Force | ANSI/AAMI EC 53:2013 | ANSI/AAMI EC 53:1995 /<br>(R) 2001 | Identical |
| Performance<br>and Safety | ANSI/AAMI EC 53:2013<br>and IEC 60601-1:2005 +<br>A1:2012 | ANSI/AAMI EC 53:1995 /<br>(R) 2001 and IEC 60601-<br>1:1998; AM1; A2:1995 | Identical |
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# QT Medical, Inc. PCA-C100 Patient Cable
Traditional 510(k) 510(k) Summary
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Traditional 510(k) 510(k) Summary
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#### 5.10 Similarity and Difference
The PCA-C100 Patient Cable has been compared with "Cable/Lead-Wire ". The subject device has the same intended use, technology/mechanism of action, safety and performance as the predicate device. Although there are some specifications that are different between two devices, the performance test and usability test have been completed to demonstrate that the differences between these parameters would not impact the safety and effectiveness of the subject device. The subject device has undergone safety and performance tests, and the results complied with the test requests. Therefore, the difference between the subject device and the predicate device did not raise any problem of substantial equivalence. The subject device is substantially equivalent to the predicate device in intended use, safety and performance claims.
#### 5.11 Conclusion
In conclusion, QT Medical, Inc. believes that PCA-C100 Patient Cable is as safe and as effective as the predicate, and thus, is substantially equivalent to the predicate device.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.