Distal Access torque devices are used to maneuver quide wires in the coronary and peripheral vasculature during interventional or diagnostic procedures. Distal Access torque devices are not intended for use in the neurovasculature.
Device Story
The Distal Access Torque Device (Predict or Spinr) is a single-use, hand-held, manually operated controller used to maneuver guidewires (0.014 - 0.039") during interventional or diagnostic procedures. The device features a collet mechanism; the user inserts the proximal end of a guidewire into the device cap and rotates the cap clockwise to lock the collet onto the wire. Once secured, the user manually rotates, advances, or retracts the device to manipulate the guidewire within the patient's vasculature. The device provides predictable rotation (3 to 5 times clockwise/counterclockwise) controlled by the user's fingers. It does not use electrical power or software. It is intended for use by clinicians in clinical settings. The device benefits the patient by providing enhanced control and maneuverability of guidewires during procedures.
Clinical Evidence
No clinical data. Bench testing only. Performance evaluated via axial wire retention, collet release, slip torque, rotational speed, and comparative torque testing. Biocompatibility testing included cytotoxicity, sensitization, acute systemic toxicity, pyrogenicity, and hemocompatibility. All tests met predetermined acceptance criteria.
Technological Characteristics
Materials: Medical grade polycarbonate (Makrolon), stainless steel spring. Collet-based locking mechanism. Manual operation; no electrical power. Dimensions accommodate 0.014"-0.039" guidewires. Sterilization: Ethylene oxide (ISO 11135-1). Compliant with ISO 10993-1 for biocompatibility.
Indications for Use
Indicated for maneuvering guidewires in coronary and peripheral vasculature during interventional or diagnostic procedures. Not for use in neurovasculature.
Regulatory Classification
Identification
A catheter guide wire is a coiled wire that is designed to fit inside a percutaneous catheter for the purpose of directing the catheter through a blood vessel.
Special Controls
*Classification.* Class II (special controls). The device, when it is a torque device that is manually operated, non-patient contacting, and intended to manipulate non-cerebral vascular guide wires, is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 870.9.
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Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
December 10, 2014
Distal Access. LLC c/o Mr. Mark Job Regulatory Technology Services LLC 1394 25th Street NW Buffalo, MN 55313
Re: K141054
Trade/Device Name: Distal Access Torque Device or Controller (Predict or Spinr) Regulation Number: 21 CFR 870.1330 Regulation Name: Catheter Guide Wire Regulatory Class: Class II Product Code: DQX Dated: November 24, 2014 Received: November 25, 2014
Dear Mr. Job:
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. 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
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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 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/Resourcesfor You/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.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,
# Melissa A. Torres -S
For Bram D. Zuckerman, M.D. Director Division of Cardiovascular Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Indications for Use
510(k) Number (if known)
K141054
Device Name
Distal Access Torque Device or Controller (Predict or Spinr)
#### Indications for Use (Describe)
Distal Access torque devices are used to maneuver quide wires in the coronary and peripheral vasculature during interventional or diagnostic procedures. Distal Access torque devices are not intended for use in the neurovasculature.
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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#### 5. 510(k) Summary
#### 510(k) Number K141054
| General<br>Provisions | Date of Preparation: | December 8, 2014 |
|-----------------------|-------------------------|------------------------------------------------------------------|
| | Submitter Name: | Shawn P. Fojtik |
| | Sponsor: | Distal Access, LLC |
| | Address: | 5010 Heuga Court, Park City, UT 84098-8514 |
| | Telephone/ | Phone (435) 602-9640 |
| | Fax No.: | (954) 457-8038 |
| | Email | fojtik@post.harvard.edu |
| | Contact Name: | Shawn P. Fojtik |
| | Contact Company: | Distal Access, LLC |
| | Address: | 5010 Heuga Court, Park City, UT 84098-8514 USA |
| | Telephone/ | (435) 602-9640 |
| | Fax No.: | (954) 457-8038 |
| | Email: | fojtik@post.harvard.edu |
| Subject<br>Device | Trade Name: | Distal Access Torque Device or Controller (Predict or Spinr) |
| | Common Name: | Torque device / controller |
| | Classification Name: | Catheter Guide Wire (accessory)<br>(74DQX; 21 CFR § 870.1330) |
| Predicate<br>Devices | Trade Name: | Pin Vise torque device |
| | Common Name: | Torque device / controller |
| | Classification Name: | Catheter, Percutaneous (accessory)<br>(74DQY; 21 CFR § 870.1250) |
| | Manufacturer: | Merit Medical Systems, Inc. |
| | Premarket Notification: | K936032 December 17, 1993 |
| | Trade Name: | VSI torque device |
| | Common Name: | Torque device / controller |
| | Classification Name: | Catheter Guide Wire (accessory)<br>(74DQX; 21 CFR § 870.1330) |
| | Manufacturer: | Vascular Solutions, Inc. |
| | Premarket Notification: | K100093 April 30,2010 |
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#### Predict Torque Device
#### Device Description
Manually rotating, spinning, and torqueing wires, guidewires, catheters, and other devices are common during interventional and diagnostic procedures. The Distal Access Torque Device (Predict / Spinr Controller) is a single-use hand-held manually operated high-performance torque device / controller used to maneuver difficult-to-grasp devices including quidewires during interventional or diagnostic procedures.
The Predict's design allows for predictable and controllable rotation of a device clockwise with counterclockwise return to its original orientation. Clockwise and counterclockwise rotations are manually controlled so the Predict rotates the same number of rotations in one direction as the other. Similar to the predicates, the user manually advances and retracts the Predict torque device forward and backward to introduce or remove the connected device from the body. Also, identical to the predicates, the Predict may be connected to a device already in the body.
Same as the predicates, a device, including a guidewire, is loaded into the Predict 0.014 - 0.039" by inserting the proximal end of the device into the distal end of the Predict's cap. The Predict locks down on the device when the user rotates the collet cap clockwise, forcing the industry standard designed collet to grip onto the device is released when the user rotates the cap counterclockwise to loosen the collet's grip on the device.
Once a device is connected, the Predictably rotates devices between 3 and 5 times clockwise and counterclockwise as per the labeled number of rotation is manually controlled by the user's finger, thumb and hand. Also, identical to predicates, the Predict does not use electrical power or software.
Similar to predicate devices, industry standard components and materials are used:
- Medical grade polycarbonate (Makrolon) sleeve, grip, body, screw, slider, and cap components. -
- Stainless steel spring. -
- Industry standard collet design. -
- ISO 10993 compliant medical grade Loctite adhesive and NuSil Lubricant. -
Predicts do not add any new materials or manufacturing processes to molding or assembly.
#### Indication for Use
Distal Access torque devices are used to maneuver quide wires in the coronary and peripheral vasculature during interventional or diagnostic procedures. Distal Access torque devices are not intended for use in the neurovasculature.
#### Guidance Documents
Verification and validation tests have been performed in accordance with the FDA's Design Control requirements identified in 21 CFR §820.30. The following guidance documents and standards were used in conjunction with in-house protocols to determine that the new Predict device is substantially equivalent to the predicated device(s):
ISO 10993-1:2009, Biological Evaluation of Medical Devices Part-1: Evaluation and Testing ANSI/AAMI/ISO 11135-1:2007, Sterilization of health care products- Ethylene oxide- Part 1: Requirements for development, validation, and routine control of a sterilization process for medical devices
AAMI ISO TIR 11135-2:2008, Sterilization of health care products- Ethylene oxide - Part 2: Page 2 of 4 Section 5 510k Summary
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Guidance on the application of ANSI/AAMI/ISO 11135-1
ANSI/AAMI/ ISO 11607-1: (2006)/(R)2010. Packaging for terminally sterilized medical devices- Part 1: Requirements for materials, sterile barrier systems and packaging systems ANSI/AAMI/ ISO 11607-2: (2006)/(R)2010, Packaging for terminally sterilized medical devices- Part 2: Validation requirements for forming, sealing, and assembly processes ASTM F88, Standard Test Method for Seal Strength of Flexible Barrier Materials ASTM F 1980-07. Standard Guide for Accelerated Aging of Sterile Barrier Systems for Medical Devices (Sterility)
### Testing
In addition, the following attributes were evaluated in accordance with test protocols to determine the relative performance of the new Predict device with the predicate torque devices:
- Axial wire retention force;
- Collet release testing;
- Collet slip torque;
- Cap dimensions;
- . Collet insertion force;
- . Rotational speed;
- . Comparative torque testing:
- . Screw rotations;
- Wire pull tests;
- . Spring force and dimensions:
- Slider length and sleeve view port test;
- . Rotational speed test:
- Comparative torque tests;
- . Axial force and wire movement versus predicate;
- Collet slip torque comparison to predicate;
- . Evaluation of collet grip strength under simulated use;
- . Package seal strength and integrity.
- . Biocompatibility: Cytotoxicity, Sensitization, Acute Systemic Toxicity, Pyrogenicity, and Hemocompatibility.
The Predict subject device met all predetermined acceptance criteria identified in test protocols created to evaluate conformance with the relevant requirements of the above listed standards, guidance documents, and in-house protocols demonstrating that identified potential risks and hazards have been acceptably controlled and that the safety and/ or performance of the new device are equivalent to those of the cited predicate device(s).
### Clinical testing.
Not required for this device.
### Summary of Substantial Equivalence
Based on a comparison of labeling, including intended and indicated uses, of the new and predicate devices: results of performance and safety tests: and an acceptable biological and toxicological risk associated with the use of the Predict torque device; Distal Access concludes that its new torque devices perform as well as or better than, the identified predicate devices, and can therefore be considered substantially equivalent.
> Page 3 of 4 Section 5 510k Summary
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The conclusions drawn from the nonclinical tests demonstrate that the Predict device is substantial equivalent to the legally marketed Merit Pin Vice and VSI torque devices.
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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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Reading rule for every project: how many summaries do you read in full?
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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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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.
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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.