NanoFUSE® is indicated to be gently placed into bony voids or gaps of the skeletal system that are not intrinsic to the stability of the bony structure (i.e. the posterolateral spine and pelvis). These defects may be surgically created osseous defects or osseous defects created from traumatic injury to the bone. NanoFUSE® must be used with autograft as a bone graft extender in the posterolateral spine and pelvis. The product provides a bone graft substitute that remodels into the recipient's skeletal system.
Device Story
NanoFUSE is a malleable, putty-like bone void filler consisting of 45S5 bioactive glass particles coated with porcine gelatin. Supplied dry in a sterile syringe; reconstituted at point of use by surgeon with sterile saline, water for injection, or autologous whole blood. Rehydrated material forms a uniform paste/putty; mixed with autograft; extruded into bony voids. Used in clinical settings (e.g., OR) by surgeons. Acts as an osteoconductive scaffold; progressively resorbed and replaced by host bone during remodeling. Benefits patient by providing a bone graft substitute to fill non-structural skeletal gaps.
Clinical Evidence
No human clinical data. Evidence based on in vivo rabbit model studies (24 and 52 weeks) evaluating performance in the posterolateral spine. Results demonstrate substantial equivalence to the primary predicate (NanoFUSE DBM, K142104) in terms of bone remodeling and biocompatibility.
Technological Characteristics
Synthetic 45S5 bioactive glass particles coated with porcine skin-derived gelatin. Provided dry in sterile polymer syringe; reconstituted to malleable paste. Osteoconductive scaffold. Non-pyrogenic. Single-use. No electronic components or software.
Indications for Use
Indicated for patients requiring bone graft extension in surgically created or traumatic osseous defects of the posterolateral spine and pelvis. Must be used with autograft. Not for use in defects intrinsic to skeletal stability.
Regulatory Classification
Identification
A resorbable calcium salt bone void filler device is a resorbable implant intended to fill bony voids or gaps of the extremities, spine, and pelvis that are caused by trauma or surgery and are not intrinsic to the stability of the bony structure.
Special Controls
*Classification.* Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance: Resorbable Calcium Salt Bone Void Filler Device; Guidance for Industry and FDA.” See § 888.1(e) of this chapter for the availability of this guidance.
NovaBone Putty – Bioactive Synthetic Bone Graft (K110368)
Submission Summary (Full Text)
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Image /page/0/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is a stylized symbol of three human profiles facing to the right, stacked on top of each other.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609 Silver Spring, MD 20993-0002
February 16, 2017
Amend Surgical, Inc. % Lisa Simpson Regulatory Consultant Simpson Regulatory Solutions, LLC 4401 NW 18 Place Gainesville, Florida 32605
Re: K161996
Trade/Device Name: 0.5cc NanoFUSE®, 1.0cc NanoFUSE®, 2cc NanoFUSE®, 5cc NanoFUSE®, 10cc NanoFUSE® Regulation Number: 21 CFR 888.3045 Regulation Name: Resorbable Calcium Salt Bone Void Filler Device Regulatory Class: Class II Product Code: MQV Dated: January 13, 2017 Received: January 17, 2017
Dear Ms. Simpson:
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 devicerelated adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in
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the quality systems (OS) 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,
# Mark N. Melkerson -S
Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### SECTION 4
### INDICATIONS FOR USE
510(k) Number (if known): _K161996
Device Name: NanoFUSE®
Indications for Use:
NanoFUSE® is indicated to be gently placed into bony voids or gaps of the skeletal system that are not intrinsic to the stability of the bony structure (i.e. the posterolateral spine and pelvis). These defects may be surgically created osseous defects or osseous defects created from traumatic injury to the bone. NanoFUSE® must be used with autograft as a bone graft extender in the posterolateral spine and pelvis. The product provides a bone graft substitute that remodels into the recipient's skeletal system.
Prescription Use _ × (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (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)
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Image /page/3/Picture/0 description: The image shows the logo for Amend Surgical. The logo features a stylized letter "A" in gold and silver, with the word "AMEND" in bold, black letters to the left of the "A". Below "AMEND" is the word "SURGICAL" in a smaller, gray font.
| Device: | NanoFUSE® |
|-------------------------------|-------------------------------------------------------------------------------------------------------------------|
| Date: | January 13, 2017 |
| Submitted by: | Amend Surgical, Inc.<br>13859 Progress Blvd., Suite 600<br>Alachua, FL 32615<br>Ph: (844) 281-3169<br>Fax: n/a |
| Regulatory<br>Representative: | Lisa C. Simpson<br>(consultant)<br>Simpson Regulatory Solutions, LLC<br>4401 NW 18 Place<br>Gainesville, FL 32605 |
| Proprietary Name: | NanoFUSE® |
| Common Name: | Bone Void Filler, Bone Graft Substitute |
| Classification Name: | Resorbable calcium salt bone void filler device |
| Regulation: | 21 CFR § 888.3045 |
| Classification Code: | MQV - Class II |
### Predicate Devices:
| Trade/Proprietary Name | Manufacturer | 510(k)<br>Number |
|------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------|------------------|
| NanoFUSE® DBM<br>(primary predicate) | Amend Surgical, Inc. /<br>Nanotherapeutics, Inc.* | K142104 |
| NovaBone Putty – Bioactive<br>Synthetic Bone Graft<br>(reference predicate) | NovaBone Products, LLC | K110368 |
| *Device was cleared by NanoTherapeutics, Inc. Subsequently, 510(k) ownership was<br>transferred to Amend Surgical, Inc. per a contractual agreement. | | |
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Image /page/4/Picture/0 description: The image contains the logo for Amend Surgical. The logo features a stylized "A" shape in gold and gray, positioned above the word "AMEND" in bold, black letters. Below "AMEND" is the word "SURGICAL" in a smaller, gray font.
#### Description:
NanoFUSE® is a malleable, putty-like, bone-void filler. The product is comprised of a synthetic calcium phosphor-silicate particulate material particles (45S5 bioactive glass), both coated with gelatin derived from porcine skin. These coated particles are packaged dry in a single use, medical grade polymer syringe, double-wrapped in peel-back pouches, in a dust cover paperboard carton. An empty sterile syringe for addition of the hydration fluid of choice is also included in the sterile barrier packaging. NanoFUSE® is intended for single patient use only and is non-pyrogenic. Instructions for use are provided by way of a package insert in the paperboard carton.
At point of use, the surgeon reconstitutes the product with an appropriate sterile solution of choice (sterile saline, water for injection, or autologous whole blood). The coated particles rehydrate in less than 30 seconds and do not require mixing to form a uniform paste or putty. The material is then mixed with autograft and gently extruded by the surgeon into the bone void. NanoFUSE® is progressively resorbed and replaced by host bone during the osteo-remodeling process.
#### Indications for Use:
NanoFUSE® is indicated to be gently placed into bony voids or gaps of the skeletal system that are not intrinsic to the stability of the bony structure (i.e. the posterolateral spine and pelvis). These defects may be surgically created osseous defects or osseous defects created from traumatic injury to the bone. NanoFUSE® must be used with autograft as a bone graft extender in the posterolateral spine and pelvis. The product provides a bone graft substitute that remodels into the recipient's skeletal system.
#### Technological Characteristics:
NanoFUSE® is comprised of synthetic calcium phosphor-silicate material particles (45S5 bioactive glass) coated with gelatin derived from porcine skin. It is provided dry and is reconstituted at the point of use into a paste-like, malleable form that can be molded or manipulated into bony defects.
The bioactive glass and gelatin binder in NanoFUSE® is identical to that utilized for the legally marketed primary predicate device (K142104, NanoFUSE® DBM). However, NanoFUSE® DBM incorporates demineralized bone matrix (DBM) whereas the NanoFUSE 510(k) subject device does not.
Both NanoFUSE® and NanoFUSE DBM contain 45S5 bioactive glass and an inert carrier. NanoFUSE DBM is designated as the primary predicate device and was used as a comparative control for in vivo studies in the rabbit.
NanoFUSE® is reconstituted by the addition of fluid of choice (sterile saline, water for injection or autologous whole blood). The product extrudes as a very fluid paste and, with
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Image /page/5/Picture/0 description: The image shows the logo for Amend Surgical. The logo features the word "AMEND" in bold, black letters, with the word "SURGICAL" in a smaller, lighter font underneath. Above the word "AMEND" is a stylized, triangular shape in gold and silver, resembling the letter "A".
time, the gelatin carrier absorbs the fluid, becomes progressively thicker, and eventually sets in a rubbery mass.
| Comparison<br>Feature | NanoFUSE® DBM<br>Primary<br>Predicate<br>K142104 | NanoFUSE®<br>510(k)<br>Subject<br>Device | NovaBone Putty<br>Reference<br>Predicate<br>K110368 |
|----------------------------------------|---------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------|------------------------------------------------------|
| Materials of<br>Construction | 45S5 bioactive glass<br>Porcine Gelatin<br>Demineralized Bone<br>Matrix (DBM) | 45S5 bioactive glass<br>Porcine Gelatin | 45S5 bioactive glass<br>Synthetic Binder |
| Sizes | 2cc to 10cc | 0.5cc to 10cc | 1cc to 10cc |
| Packaging<br>Forms | Syringe | Syringe | Clamshell Tray<br>Syringe<br>Jar |
| How Provided | Sterile | Sterile | Sterile |
| | Single Use | Single Use | Single Use |
| Preparation | Hydrate with<br>sterile saline,<br>water for injection<br>(WFI), or<br>autologous whole<br>blood. | Hydrate with<br>sterile saline,<br>water for injection<br>(WFI), or<br>autologous whole<br>blood. | Ready to Use<br>(no hydration needed) |
| Anatomic<br>Sites | Posterolateral Spine | Posterolateral Spine | Posterolateral Spine |
| | Pelvis<br>Extremities | Pelvis | Pelvis<br>Extremities |
| Intended for<br>use with<br>autograft? | Yes | Yes | Optional |
| Mode of<br>Action | Mode of Action: | Mode of Action: | Mode of Action: |
| | 45S5 Bioactive Glass:<br>Osteoconductive<br>Scaffold<br><br>DBM:<br>Osteoinductive Potential | 45S5 Bioactive Glass:<br>Osteoconductive<br>Scaffold | 45S5 Bioactive Glass:<br>Osteoconductive<br>Scaffold |
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Image /page/6/Picture/0 description: The image shows the logo for Amend Surgical. The logo features a stylized "A" in gold and silver above the word "AMEND" in bold, black letters. Below "AMEND" is the word "SURGICAL" in a smaller, lighter font.
#### Safetv and Effectiveness:
The device is provided sterile, for single use only and has a one-vear shelf life, Biocompatibility data from the NanoFUSE® DBM primary predicate device (K142104) was adopted for the NanoFUSE® 510(k) subject device as the NanoFUSE® DBM includes the same 45S5 bioactive glass and porcine gelatin. Also, the packaging for NanoFUSE® DBM is the same as the proposed NanoFUSE device. The use of NanoFUSE® in the posterolateral spine was evaluated in vivo in the rabbit model. Two studies (24 weeks and 52 weeks) demonstrate the device performance is substantially equivalent to the comparative control, NanoFUSE DBM (K142104). These studies further support the biocompatibility of the NanoFUSE® device.
#### Substantial Equivalence:
The bioglass and porcine gelatin in NanoFUSE® are identical to those utilized for the primary predicate device, NanoFUSE® DBM (K142104). NanoFUSE® and NanoFUSE® DBM (K142104) have the same packaging and both devices are labeled as nonpyrogenic. NanoFUSE® is not indicated for use in the extremities as are the predicate devices; therefore, the indications for use relative to NanoFUSE® DBM (K142104) were modified accordingly.
NanoFUSE® is similar in formulation to NovaBone Putty (K110368) as both include 45S5 bioactive glass and an inert carrier to facilitate handling; neither device contains DBM. The proposed NanoFUSE device, NanoFUSE® DBM predicate (142104) and NovaBone Putty predicate (K110368) are all provided sterile, for single use only and are intended for use in the posterolateral spine and pelvis.
NanoFUSE DBM (K142104) was chosen as the comparative control for posterolateral spine studies in the rabbit because the formulation contains the same bioglass and gelatin constituents. Both the 24-week study and 52-week rabbit spine study results demonstrate NanoFUSE® in vivo performance to be substantially equivalent to NanoFUSE DBM (K142104), in consideration that the predicate device includes DBM, which provides an osteoinductive advantage.
Based on the composite of descriptive information and supporting animal data, NanoFUSE® is deemed substantially equivalent to NanoFUSE DBM (K142104), the primary predicate device, when used as a bone graft extender, in accordance with the indications for use and instructional information provided in the device labeling.
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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.