NanoFUSE® DBM 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. It is indicated to be placed into bony voids or gaps of the skeletal structure (e.g., the extremities and pelvis). These defects may be surgically created osseous defects or osseous defects created by traumatic injury to the bone. The product provides a bone graft substitute that remodels into the recipient's skeletal system.
Device Story
NanoFUSE® DBM is a malleable, putty-like bone void filler; composed of human demineralized bone matrix (DBM) and synthetic 45s5 bioactive glass particles, both coated with porcine-derived gelatin. Packaged dry in polypropylene syringes; reconstituted at point of use by surgeon with sterile saline or water. Rehydration occurs in <30 seconds; material extruded into bony defects. Device acts as a scaffold; progressively resorbed and replaced by host bone during osteo-remodeling. Used in clinical settings by surgeons to fill non-structural osseous defects. Osteoinductivity of DBM component verified via in vitro bioassay or in vivo athymic rat model.
Clinical Evidence
No clinical data provided. Evidence relies on bench testing, biocompatibility testing, and pre-clinical animal testing previously conducted for the predicate device. Osteoinductivity is verified via in vitro bioassay or in vivo athymic rat model.
Technological Characteristics
Materials: Human demineralized bone matrix (DBM), 45s5 bioactive glass, porcine-derived gelatin. Form: Dry powder in polypropylene syringe, reconstituted to putty. Sterilization: Radiation. Connectivity: None. Software: None.
Indications for Use
Indicated for patients with bony voids or gaps in the skeletal system (e.g., extremities, pelvis) not intrinsic to structural stability. Defects may be surgically created or traumatic in origin. No specific age or gender contraindications provided.
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.
Predicate Devices
Origen™ DBM with Bioactive Glass (NanoFUSE® DBM) (K062459, K110976)
Submission Summary (Full Text)
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## (120279 SE 1 OF 3
# anotherapeutics
- 6 2019
#### 510(k) SUMMARY OF SAFETY & EFFECTIVENESS
#### NanoFUSE® DBM
Date:
January 27, 2012
Submitted by:
Nanotherapeutics, Inc. 13859 Progress Blvd., Suite 300 Alachua, FL 32615
Representative:
Gregg Ritter, MS, RAC, CTBS Regulatory Affairs Manager Phone: (386) 462-9663 FAX: (386) 462-2087
NanoFUSE® DBM Proprietary Name: Common Name: Bone Void Filler, Bone Graft Substitute Classification Name: Filler, Calcium Sulfate Preformed Pellets, 21 CFR § 888.3045 Classification Codes: MQV, MBP - Class II
Predicate Devices:
| Trade/Proprietary Name | Manufacturer | 510(k) Number |
|----------------------------------|------------------|------------------|
| Origen™ DBM with Bioactive Glass | Nanotherapeutics | K062459, K110976 |
| (NanoFUSE® DBM) | | |
Description:
NanoFUSE® DBM is a malleable, putty-like, bone-void filler. The product is comprised of human demineralized bone matrix (DBM) and 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, polypropylene syringe (20 cc or 3 cc), double-wrapped in peel-back pouches, and final packaged in a dust cover paperboard carton. The 20 cc syringe will be filled with either of two different fill quantities of dry powder, identified as 10 cc or 5 cc final product volume. The 3 cc syringe will be filled with dry powder, identified as 2 cc final product volume. NanoFUSE® DBM is intended for single patient use only.
At point of use, the surgeon will reconstitute the product with an appropriate sterile solution of his/her choice (sterile saline, water for injection). 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 gently extruded by the surgeon into the appropriate bone voids. NanoFUSE® DBM is progressively resorbed and replaced by host bone during the osteo-remodeling process.
Indications for Use:
NanoFUSE® DBM 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. It is indicated to be placed into bony voids or gaps of
{1}------------------------------------------------
K120279
PAGE 2 OF 3
the skeletal structure (e.g., the extremities and pelvis). These defects may be surgically created osseous defects or osseous defects created by traumatic injury to the bone. The product provides a bone graft substitute that remodels into the recipient's skeletal svstem.
#### Technological Characteristics:
The applicant version of NanoFUSE® DBM is identical to the currently legally marketed medical device NanoFUSE® DBM, also manufactured by Nanotherapeutics, Inc. with respect to materials. design, and intended use. The applicant version is comprised of human demineralized bone matrix (DBM) and synthetic calcium phosphor-silicate particulate material particles (45s5 bioactive glass), both 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.
NanoFUSE® DBM is reconstituted by the addition of fluid and waiting 30 seconds before expelling the contents from the syringe. At 30 seconds, the product extrudes as a very fluid paste and, with time, the gelatin carrier absorbs the fluid, becomes progressively thicker, and eventually sets in a rubbery mass.
Currently, each lot of DBM used in manufacturing the predicate Origen DBM® with Bioactive Glass (NanoFUSE® DBM) is screened for osteoinductivity in an in vitro bioassay. Each lot of DBM used in manufacturing the applicant version of NanoFUSE® DBM will be screened for osteoinductivity with either the in vitro bioassay originally submitted or the in vivo athymic rat model herein submitted.
The scientific technology of NanoFUSE® DBM applicant product. using in vivo testing for osteoinductivity, is identical to the technology used in the FDA cleared predicates. (K062459, K110976)
| Comparison<br>Feature | NanoFUSE® DBM -<br>Predicate | NanoFUSE® DBM<br>- Applicant |
|------------------------------|----------------------------------|----------------------------------------------------|
| Form | Syringe | Same |
| Materials of<br>Construction | DBM, bioactive glass,<br>gelatin | Same |
| Comparable<br>Sizes | Yes | Yes |
| Osteoinductivity<br>Assay | Cell bioassay | in vivo athymic rat<br>implant or cell<br>bioassay |
| Sterility | Yes - Radiation | Same |
{2}------------------------------------------------
## K120279 PAGE 3 OF 3
#### Osteoinductivity Potential:
athymic rat model. Results from this bioassay were correlated to the athymic rat model. Testing each lot of DBM with this cell bioassay or athymic rat model assures that only DBM with osteoinductive potential is used in NanoFUSE® DBM. The combination of DBM. bioactive glass, and porcine gelatin has not been evaluated for osteoinductivity; therefore, it is unknown to what extent the formulation components may alter the osteoinductive character of the DBM. It is unknown how the OI of the DBM component, measured via the in vitro bioassay or athymic rat model, will correlate with human clinical performance of NanoFUSE® DBM.
The change in osteoinductivity potential testing for the DBM does not
alter the fundamental scientific technology of the device and it does not have an effect on the viral clearance and inactivation of the device. A panel of model potential human viruses representing various virus types, sizes, shapes and genomes has previously been evaluated. The viral inactivation testing demonstrated that suitable viral inactivation potential was obtained by the processing method for
a wide spectrum of potential human viruses.
according to ISO 10993.
(NanoFUSE® DBM).
Each lot of DBM incorporated into NanoFUSE® DBM is evaluated for osteoinductive (OI) potential using an in vitro bioassay or in vivo
Viral Clearance and Inactivation:
Safety and Effectiveness:
The change in osteoinductivity potential testing for the DBM does not alter the fundamental scientific technology of the device and it does not have an effect on the biocompatibility of the device. Biocompatibility testing, pre-clinical animal testing and in vitro bench testing has previously been conducted to evaluate the biological safety and performance characteristics of NanoFUSE® DBM
The change in osteoinductivity potential testing for the DBM does not alter the fundamental scientific technology of the device. Based on the testing provided, the submitted change does not have an effect on the safety or effectiveness of the device. Therefore, the applicant version of NanoFUSE® DBM is substantially equivalent to the currently cleared version of Origen DBM® with Bioactive Glass
Substantial Equivalence:
ર-3
{3}------------------------------------------------
### DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/3/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" arranged around the perimeter. Inside the circle is an emblem featuring a stylized depiction of an eagle or bird-like figure.
Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002
Nanotherapeutics, Incorporated % Mr. Gregg Ritter, MS, RAC, CTBS Regulatory Affairs Manager 13859 Progress Boulevard, Suite 300 Alachua, Florida 32615
APR - 6 2012
Re: K120279
Trade/Device Name: NanoFUSE® DBM Regulation Number: 21 CFR 888.3045 Regulation Name: Resorbable calcium salt bone void filler device Regulatory Class: Class II Product Code: MQV, MBP Dated: January 27, 2012 Received: January 30, 2012
Dear Mr. Ritter:
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 of any I cated butter and registements, 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 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.
{4}------------------------------------------------
### Page 2 - Mr. Gregg Ritter, MS, RAC, CTBS
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/AboutFDA/CentersOffices/CDRH/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. 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 Small Manufacturers, International and Consumer Assistance 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.
Sincerely yours,
Mark N. Melkerso Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{5}------------------------------------------------
# nanotherapeutics
#### INDICATIONS FOR USE
510(k) Number (if known): K120279
Device Name: NanoFUSE® DBM
Indications for Use:
NanoFUSE® DBM 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. It is indicated to be placed into bony voids or gaps of the skeletal structure (e.g., the extremities and pelvis). These defects may be surgically created osseous defects or osseous defects created by traumatic injury to the bone. 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)
Signature
(Division Sign-Off) Division of Surgical, Orthopedic, and Restorative Devices
510(k) Number K120279
4-1
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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.
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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.
4. Device detail page: chat and citations
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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.
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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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7. Product codes and the regulations tree
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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.
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.