The Stryker PEEK TwinLoop Tac is intended to be used for suture or tissue fixation in the foot, ankle, knee, hip, hand, wrist, elbow, and shoulder. Specific indications are listed below and are size appropriate per patient needs: Elbow: Biceps Tendon Reattachment, Ulnar or Radial Collateral Ligament Reconstruction. Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction. Scaphulolunate Ligament Reconstruction, Carpal Ligament Reconstruction, Hand/Wrist: Repair/Reconstruction of collateral ligaments, Repair of Flexor and Extensor Tendons at the PIP, DIP and MCP joints for all digits, digital tendon transfers. Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Foot/Ankle: Ligament Repair, Hallux Valgus Reconstruction, digital tendon transfers, Mid-foot reconstruction. Knee: Medial Collateral Ligament Repair, Lateral Collateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Iliotibial Band Tenodesis. Pelvis: Bladder Neck Suspension for Female urinary incontinence due to urethral hypermobility or intrinsic sphincter deficiency. Hip: Capsular repair, acetabular labral repair. The Stryker PEEK TwinLoop Tac is intended for single-use only.
Device Story
Push-in type suture anchor; PEEK-OPTIMA LT3 polymer body; two USP#1 high-strength eyelets; pre-threaded with USP#2 non-absorbable braided UHMWPE sutures; pre-assembled on disposable inserter. Used by orthopedic surgeons in clinical/OR settings for soft tissue-to-bone fixation. Device provides mechanical anchor point for sutures to reattach tendons/ligaments to bone. Benefits include secure fixation during healing. Single-use, sterile, ethylene oxide sterilized.
Clinical Evidence
No clinical data. Bench testing only.
Technological Characteristics
Material: PEEK-OPTIMA LT3 (polyetheretherketone). Suture: Braided UHMWPE. Form factor: Push-in anchor with two eyelets, pre-assembled on disposable inserter. Sterilization: Ethylene oxide (SAL 10^-6). Standards: ISO 10993-1, ISO 10993-7, EN 550, EN 556-1, EN 11607, EN 980, EN 1041, EN ISO 14971.
Indications for Use
Indicated for suture or tissue fixation in foot, ankle, knee, hip, hand, wrist, elbow, and shoulder. Specific procedures include tendon reattachment, ligament reconstruction, rotator cuff repair, labral repair, and bladder neck suspension for female urinary incontinence. Single-use only.
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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K070882 page '92
5900 Optical Court San Jose, CA 95138 t: 408 754 2000 f: 408 754 2521
stryker®
Endoscopy
JUL 2 0 2007
# 510(k) SUMMARY OF SAFETY AND EFFECTIVENESS
Date: March 30, 2007
Contact Person: Erica A. Walters, RAC Sr. Regulatory Representative 408-754-2078(phone) 408-754-2521 (fax) erica.walters@stryker.com
### Device Name:
| Proprietary Name: | Stryker PEEK TwinLoop Tac |
|------------------------|------------------------------------------------------|
| Common and Usual Name: | PEEK Suture Anchor |
| Classification Name: | Screw, Fastener, Fixation, Nonabsorbable, Bone, Soft |
| | Tissue (Class II, 21 CFR 888.3040, Product Code MBI, |
| | Orthopedics Review Panel) |
### Predicate Device(s):
Arthrex PEEK SutureTak: K971723, K000506, K050749, K061863 Arthrex Bio-Corkscrew FT: K043337
## Device Description and Intended Use:
The Stryker PEEK TwinLoop Tac is intended to be used for suture or tissue fixation in the foot, ankle, knee hip, hand wrist, elbow, and shoulder. Specific indications are listed below and are size appropriate per patient needs:
Elbow: Biceps Tendon Reattachment, Ulnar or Radial Collateral Ligament Reconstruction.
Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction.
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page of
Scaphulolunate Ligament Reconstruction, Carpal Ligament Reconstruction, Hand/Wrist: Repair/Reconstruction of collateral ligaments, Repair of Flexor and Extensor Tendoros and PIP, DIP and MCP joints for all digits, digital tendon transfers.
Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Foot/Ankle: Ligament Repair, Hallux Valgus Reconstruction, digital tendon transfers, Mid-foot reconstruction.
Knee: Medial Collateral Ligament Repair, Lateral Collateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Iliotibial Band Tenodesis.
Pelvis: Bladder Neck Suspension for Female urinary incontinence due to urethral hypermobility or intrinsic sphincter deficiency.
Hip: Capsular repair, acetabular labral repair.
The Stryker PEEK TwinLoop Tac is intended for single-use only.
The Stryker PEEK TwinLoop Tac is a push-in type implant with two USP#1 high strength suture eyelets pre-threaded with USP#2 non-absorbable braided surgical sutures and pre-assembled on a disposable inserter. The Stryker PEEK TwinLoop Tac will be manufactured from PEEK-OPTIMA® LT3 (polyetheretherketone), a biocompatible polymer manufactured by Invibio Inc. The sutures will be USP braided ultra high molecular weight polyethylene (UHMWPE) suture (K033654, K040472 and K063778). The Stryker PEEK TwinLoop Tac will be validated to a SAL of 10th using ethylene oxide. The EtO residuals will be tested according to ISO 10993-7.1995.
Prior to introducing the Stryker PEEK TwinLoop Tac to market, the device will conform to the following voluntary safety and performance standards: ISO 10993-1, Blue Book Memorandum G95-1, EN 550, EN 556-1, EN 11607-1, EN 11607-2, EN 980, EN 1041, and EN ISO 14971.
The technological and material differences between the Stryker PEEK TwinLoop Tac, and the Arthrex PEEK SutureTak (K971723, k000506, k050749, K061863), do not affect the safety and efficacy of the product; therefore, the Stryker PEEK TwinLoop Tac is considered substantially equivalent in performance, intended use, safety, and efficacy to the Arthrex PEEK SutureTac.
The Stryker PEEK TwinLoop Tac is considered substantially equivalent in material composition, intended use, safety and efficacy to the Arthrex PEEK SutureTak (K971723, k000506, k050749, K061863).
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular arrangement of text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES (USA)". Inside the circle is a stylized symbol that resembles an abstract human figure or a bird in flight, composed of three curved lines.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
JUL 2 0 2007
Stryker Endoscopy % Mr. K. Jeffrev Semone Director, Regulatory Affairs 5900 Optical Ct. San Jose, CA 95138
Re: K070882
> Trade/Device Name: Stryker PEEK TwinLoop Tac Regulation Number: 21 CFR 888.3040 Regulation Name: Smooth or threaded metallic bone fixation fastener Regulatory Class: Class II Product Code: MBI, HWC, JDR Dated: July 6, 2007 Received: July 9, 2007
Dear Mr. Semone:
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.
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. K. Jeffrey Semone
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 Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 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 Assistance 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 vours.
Soubayo Spichum
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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page 1 of 1
#### INDICATIONS FOR USE
Device Name: Stryker PEEK TwinLoop Tac
510(k) Number if known: K070882
The Stryker PEEK TwinLoop Tac is intended to be used for suture or tissue fixation in the foot, ankle, knee, hip, hand, wrist, elbow, and shoulder. Specific indications are listed below and are size appropriate per patient needs:
Elbow: Biceps Tendon Reattachment, Ulnar or Radial Collateral Ligament Reconstruction.
Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction.
Scaphulolunate Ligament Reconstruction, Carpal Ligament Reconstruction, Hand/Wrist: Repair/Reconstruction of collateral ligaments, Repair of Flexor and Extensor Tendons at the PIP, DIP and MCP joints for all digits, digital tendon transfers.
Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Metatarsal Foot/Ankle: Ligament Repair, Hallux Valgus Reconstruction, digital tendon transfers, Mid-foot reconstruction.
Knee: Medial Collateral Ligament Repair, Lateral Collateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Iliotibial Band Tenodesis.
Pelvis: Bladder Neck Suspension for Female urinary incontinence due to urethral hypermobility or intrinsic sphincter deficiency.
Hip: Capsular repair, acetabular labral repair,
The Stryker PEEK TwinLoop Tac is intended for single-use only.
Prescription Use X Over-The-Counter Use AND/OR (Part 21 CFR 801 Subpart D) (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE
K070882
and Neurological Devices
STRYKER PEEK TWINLOOP TAC 510(K) SUBMISSION
**510(k) Number** k070882
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Learn the FDA Browser
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.