The Arthrex PIP Dart is intended to fix small bony or apical chondral fragments in the foot, ankle, upper extremities, hand, and wrist, where such fragments are not under tension or load-bearing. These devices are used in cases of osteochondritis dissecans and osteochondral fragments, fixation of fractures, 1st metatarsal (bunionectomy osteotomies), cuneiform bones, inherently stable osteotomies, and fusions of the phalanges, metatarsals, metacarpals, carpal bones, tarsal bones, ankle, and wrist. The devices can be used for inherently stable intramedullary stabilization of joint arthroplasty (resection) or fusion for the treatment of digital deformities of the foot or hand. This device is also used in inherently stable long bone fractures such as the femur, fibula, tibia, radius and ulna, including the diaphyseal, epiphyseal, and metaphyseal areas.
Device Story
Arthrex PIP Dart is a PEEK OPTIMA bone fixation implant; barbed design; inserted between proximal and middle phalanges; fixates on phalangeal canal. Used by surgeons in clinical settings for orthopedic stabilization; fixation of small bony/chondral fragments; digital deformity correction; long bone fracture stabilization. Provides mechanical fixation for bone fragments/fusions; facilitates healing by maintaining stable alignment. No software or electronic components.
Clinical Evidence
Bench testing only. Mechanical shear and pull-out testing performed to compare mechanical strength against predicate device.
Indicated for fixation of small bony or apical chondral fragments in foot, ankle, upper extremities, hand, and wrist (non-tension/non-load-bearing); osteochondritis dissecans; osteochondral fragments; fracture fixation; bunionectomy osteotomies; cuneiform bones; inherently stable osteotomies; fusions of phalanges, metatarsals, metacarpals, carpal/tarsal bones, ankle, and wrist; intramedullary stabilization of joint arthroplasty or fusion for digital deformities; and inherently stable long bone fractures (femur, fibula, tibia, radius, ulna).
Regulatory Classification
Identification
A smooth or threaded metallic bone fixation fastener is a device intended to be implanted that consists of a stiff wire segment or rod made of alloys, such as cobalt-chromium-molybdenum and stainless steel, and that may be smooth on the outside, fully or partially threaded, straight or U-shaped; and may be either blunt pointed, sharp pointed, or have a formed, slotted head on the end. It may be used for fixation of bone fractures, for bone reconstructions, as a guide pin for insertion of other implants, or it may be implanted through the skin so that a pulling force (traction) may be applied to the skeletal system.
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# JUL 1 8 2014
| 2.6 510(K) SUMMARY OF SAFETY AND EFFECTIVENESS | |
|------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Date Summary Prepared | June 11, 2014 |
| Manufacturer/Distributor/Sponsor | Arthrex, Inc.<br>1370 Creekside Boulevard<br>Naples, FL 34108-1945 USA |
| 510(k) Contact | David L Rogers<br>Regulatory Affairs Associate<br>Arthrex, Inc.<br>1370 Creekside Boulevard<br>Naples, FL 34108-1945 USA<br>Telephone: 239/643.5553, ext. 71924<br>Fax: 239/598.5508<br>Email: david.rogers@Arthrex.com |
| Trade Name | Arthrex PIP Dart |
| Common Name | Pin |
| Product Code -Classification Name | HTY - Pin, Fixation, Smooth |
| CFR | 21 CFR 888.3040: Smooth or threaded metallic bone<br>fixation fastener |
| Predicate Device | K050259: Arthrex Bio-Pin |
| Purpose of Submission | This special 510(k) premarket notification is submitted to<br>obtain FDA clearance for the Arthrex PIP Dart. |
| Device Description | The Arthrex PIP Dart is an implant with a barbed design<br>that is inserted between the proximal and middle-<br>phalanges so the barbs fixate on the phalangeal canal of<br>the toe.<br>The PIP Darts are made of PEEK OPTIMA,<br>offered in straight and 10 degree variations, and range<br>from 2.5mm to 3.0mm in diameter and 25mm to 30mm<br>in length. |
| Intended Use | The Arthrex PIP Dart is intended to fix small bony or<br>apical chondral fragments in the foot, ankle, upper<br>extremities, hand, and wrist, where such fragments are<br>not under tension or load-bearing. These devices are<br>used in cases of osteochondritis dissecans and<br>osteochondral fragments, fixation of fractures, 1st<br>metatarsal (bunionectomy osteotomies), cuneiform<br>bones, inherently stable osteotomies, and fusions of the<br>phalanges, metatarsals, metacarpals, carpal bones, tarsal<br>bones, ankle, and wrist. The devices can be used for |
| | inherently stable intramedullary stabilization of joint<br>arthroplasty (resection) or fusion for the treatment of<br>digital deformities of the foot or hand. This device is also<br>used in inherently stable long bone fractures such as the<br>femur, fibula, tibia, radius and ulna, including the<br>diaphyseal, epiphyseal, and metaphyseal areas. |
| Substantial Equivalence Summary | The Arthrex PIP Dart is substantially equivalent to the<br>predicate devices in which the basic design features and<br>intended uses are the same. Any differences between<br>the Arthrex PIP Dart and the predicate are considered<br>minor and do not raise questions concerning safety and<br>effectiveness. |
| | The shear testing and pull-out testing data submitted<br>demonstrates that there is no significant difference in<br>mechanical strength between the Arthrex PIP Dart and<br>the predicate. |
| | Based on the indications for use, technological<br>characteristics, and the summary of data submitted,<br>Arthrex, Inc. has determined that the Arthrex PIP Dart is<br>substantially equivalent to the predicates. |
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Image /page/2/Picture/1 description: The image shows the logo for the Department of Health & Human Services - USA. The logo is a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged around the perimeter. Inside the circle is an abstract image of an eagle.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
July 18, 2014
Arthrex, Inc. Mr. David L. Rogers Regulatory Affairs Associate 1370 Creekside Boulevard Naples, Florida 34108-1945
Re: K141577
Trade/Device Name: Arthrex PIP Dart Regulation Number: 21 CFR 888.3040 Regulation Name: Smooth or threaded metallic bone fixation fastener Regulatory Class: Class II Product Code: HTY Dated: June 27, 2014 Received: July 3, 2014
Dear Mr. Rogers:
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 - Mr. David L. Rogers
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/ResourcesforYou/Industry/default.htm. 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
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, Lori A. Wigqins
for
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### K141577 page 1 of 1
## INDICATIONS FOR USE
DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use
Form Approved: OMB No. 0910-01 Expiration Date: December 31, 201 See PRA Statement on last page
510(k) Number (if known) K141577
Device Name
Arthrex PIP Dart
Indications for Use (Describe)
The Arthrex PIP Dart is intended to fix small bony or apical chondral fragments in the foot, ankle, upper extremities, hand, and wrist, where such fragments are not under tension or lood-bearing. These devices are used in coses of osteochondritis dissecans and asteochondral frogments, fixation of fractures, 1st metatarsal (bunionectomy osteotomies), cuneiform bones, inherently stable osteotomies, and fusions of the phalanges, metatarsals, metacarpals, carpal bones, tarsal bones, ankle, and wrist. The devices con be used for inherently stable intramedullary stabilization of joint arthroplasty (resection) or fusion for the treatment of the foot or hand. This device is also used in inherently stable long bone froctures such as the femur, fibulo, tibia, radius ond ulno, including the diaphyseal, epiphyseal, and metaphyseal areas.
Type of Use (Select one or both, as applicable)
2 Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
# Elizabethill@Frank -
Division of Orthopedic Devices
FORM FDA 3881 (9/13)
******************************************************************************************************************************************************************************
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.