The SternalPlate system is indicated for use in stabilization and fixation of fractures of the anterior chest wall including sternal fixation following sternotomy, sternal fracture(s), and sternal reconstructive surgical procedures to promote bony fusion.
Device Story
Stryker SternalPlate System consists of metallic bone plates and screws for sternal fixation; used in surgical procedures to stabilize anterior chest wall fractures or following sternotomy. Plates feature various shapes for intraoperative contouring/cutting; accommodate 2.3mm and 2.7mm diameter screws. System includes self-drilling and self-tapping locking screws. Provided non-sterile for single use. Operated by surgeons in clinical/OR settings. Fixation promotes bony fusion. Device provides mechanical stability to chest wall; benefits patient by facilitating healing of sternal fractures or surgical incisions.
Clinical Evidence
No clinical data. Substantial equivalence supported by bench testing, including cleaning validation, sterilization validation, biocompatibility assessment (per ISO 10993-1), MR compatibility, and mechanical performance testing (screw and plate performance).
Technological Characteristics
Metallic bone fixation system; titanium construction (ASTM F67 / ASTM F136). Includes plates with screw holes and locking screws (2.3mm/2.7mm). Principle: mechanical fixation via screw-plate construct. Non-sterile, single-use. No electronic components or software.
Indications for Use
Indicated for patients requiring stabilization and fixation of anterior chest wall fractures, including post-sternotomy fixation, sternal fractures, and sternal reconstructive procedures to promote bony fusion.
Regulatory Classification
Identification
Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.
Predicate Devices
Biomet Microfixation Sternal Closure System (K121302)
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March 5, 2019
Stryker Hans Geiger Senior Regulatory Affairs Specialist 750 Trade Centre Way, Suite 200 Portage, Michigan 49002
Re: K183172
Trade/Device Name: Stryker SternalPlate System Regulation Number: 21 CFR 888.3030 Regulation Name: Single/multiple component metallic bone fixation appliances and accessories Regulatory Class: Class II Product Code: HRS Dated: January 17, 2019 Received: January 22, 2019
Dear Mr. Geiger:
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, 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
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requirements, including, but not limited to: registration and listing (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/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.html; good manufacturing practice requirements as set forth in the quality systems (OS) 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 http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). 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 (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
Laurence D. Coyne -S
For Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2020 See PRA Statement below.
510(k) Number (if known) K183172
Device Name Stryker SternalPlate System
Indications for Use (Describe)
The SternalPlate system is indicated for use in stabilization and fixation of fractures of the anterior chest wall including sternal fixation following sternotomy, sternal fracture(s), and sternal reconstructive surgical procedures to promote bony fusion.
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)
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# 510(k) Summary
This section provides a summary of 510(k) information in accordance with the requirements of 21 CFR 807.92.
- SUBMITTER [§807.92(a)(1)] I.
| 510(k) Owner: | Stryker Leibinger GmbH & Co. KG<br>Boetzinger Strasse 41<br>79111 Freiburg, Germany |
|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Submitter/ Contact<br>Person: | Hans M. Geiger<br>Sr. Regulatory Affairs Specialist<br>Stryker Craniomaxillofacial<br>750 Trade Centre Way<br>Suite 200<br>Portage, MI 49002<br>Phone: 269-389-2323<br>Fax: 877-648-7114 |
| Date prepared: | February 28, 2019 |
- II. DEVICE [§807.92(a)(2)]
| Trade Name: | Stryker SternalPlate System |
|---------------------------------------|--------------------------------------------------------------------------------|
| Common or Usual<br>name: | Bone Plate and Screws |
| Classification<br>name: | Single/Multiple Component Metallic Bone Fixation Appliances and<br>Accessories |
| Regulation<br>Number: | 21 CFR § 888.3030 |
| Regulatory Class: | Class II |
| Product Code: | HRS |
| III. PREDICATE DEVICE [§807.92(a)(3)] | |
Biomet Microfixation Sternal Closure System – K121302 This predicate has not been subject to a design-related recall.
Traditional 510(k)
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# IV. DEVICE DESCRIPTION [§807.92(a)(4)]
The Subject Device System contains various plates with different shapes which allow for intraoperative contouring and cutting of the plates as well as for postoperative emergent cutting. The plates accept screws with a diameter of 2.3mm and 2.7mm. The Subject Device System consists of self-drilling locking screws and self-tapping locking screws. The selfdrilling locking screws are designed to allow for screw fixation with no pre-drilling. The self-tapping locking screws require pre-drilling before insertion.
The Subject Device plates and screws are provided non-sterile and are for single use only.
#### V. INDICATIONS FOR USE [§807.92(a)(5 )]
#### Subject Device Predicate - K121302 The SternalPlate System is The Biomet Microfixation Sternal indicated for use in stabilization Closure System is indicated for use and fixation of fractures of the in the stabilization and fixation of anterior chest wall including sternal fractures of the anterior chest wall Indications fixation following sternotomy, including sternal fixation following for Use sternal fracture(s), and sternal sternotomy and sternal reconstructive surgical procedures reconstructive surgical procedures, to promote bony fusion. to promote fusion.
#### TABLE 1: COMPARISON OF INDICATIONS FOR USE
The Indications for Use statement of the Subject Device falls within the scope of the broader Indications statement of the Predicate Device. The differences in the Indications statement for the proposed device in comparison to the predicate does not constitute a new indications for use.
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#### COMPARISON OF TECHNOLOGICAL CHARACTERISTICS WITH THE VI. PREDICATE DEVICE [§807.92(a)(6)]
The Subject Device is compared to its predicate devices for substantial equivalence based on the following criteria:
- A. Principle of Operation
- B. Technological and Operational Characteristics
# A. Principle of Operation
The basic operational principle of the Subject Device, as well as the Predicate Device is for sternal fixation following sternotomy and sternal reconstructive surgical procedures to promote bony fusion. The method of site preparation and fixation is the same for both the Subject and Predicate Device.
#### B. Technological and Operational Characteristics
At a high level, the Subject Device and Predicate Device are based on the following technological elements:
- Material: Both the Subject Device and Predicate Device are made of biocompatible ● titanium according to standards.
- Mode of fixation: Implant fixation with screws of the Subject Device is the same as ● the Predicate Device.
- Equivalent plate design: The Subject Device has equivalent plate designs compared ● to the Predicate Device consisting of screw holes connected via bars.
- Similar Dimension: The Subject Device System contains various plates and screws o of different shapes which are in the same range as the screws and plates of the Predicate Device.
Overall these changes do not alter the Subject Device significantly and do not represent a new worst case in design.
Traditional 510(k)
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#### VII. PERFORMANCE DATA [§807.92(b)(1)]
The following performance data were provided in support of the substantial equivalence determination.
#### Biocompatibility Assessment
For assessment of biocompatibility for the Subject Device System, the following documents
were used for guidance:
· ISO 10993-1 Biological evaluation of medical devices - Part 1: Evaluation and testing within a risk management process.
· FDA guidance "Use of International Standard ISO-10993, "Biological Evaluation of Medical Devices Part 1: Evaluation and Testing within a risk management process," issued June 16, 2016.
Based on the guidance stated above, the plates and screws of the Subject Device System are categorized as implants, with permanent (>30d) contact in a bone region. The instruments of the Subject Device are categorized as instruments with limited contact (<24h) and instruments without contact.
The Subject Device implants are made of titanium according to international standards ASTM F67 / ASTM F136 and have a long history of use in the same indications (ISO 10993-1, Section 4.1). Furthermore, the ASTM standards establish that biological reactivity is acceptable in the clinical conditions of use.
During the biocompatibility assessment of the implants, reference devices K151387 (screws) and K014263 (plates) have been identified which are equivalent to the subject device in terms of biocompatibility. Therefore, no further biocompatibility testing was necessary.
Traditional 510(k)
Stryker SternalPlate System
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#### Performance Bench Testing
The following performance tests were performed in support of the substantial equivalence determination:
- Cleaning Validation ●
- Sterilization Validation ●
- Biocompatibility ●
- Product Design Validation ●
- MR Compatibility ●
- Screw Performance ●
- Plate Performance ●
The Subject Device met all pre-defined acceptance criteria and standards and was found to not represent a new worst case. Overall, the results of the performance bench tests support the substantial equivalence of the Subject device.
# Animal Testing
Animal testing was not required as a basis for substantial equivalence.
# Clinical Testing [§807.92(b)(2)]
Clinical testing was not required as a basis for substantial equivalence.
# VIII. CONCLUSIONS [§807.92(b)(3)]
The results of the non-clinical data demonstrate the Subject Device will perform as intended in the specified use conditions. According to the comparison based on the requirements of 21 CFR 807.92 and the information provided herein, it is concluded that the information included in this submission supports substantial equivalence.
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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.
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.
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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.
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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.
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.