BioSphere MIS Putty is indicated only for bony voids or gaps that are not intrinsic to the stability of the bony structure. BioSphere MIS Putty is indicated to be gently packed into bony voids or gaps of the skeletal system as a bone void filler in the extremities and pelvis, and as a bone graft extender in the posterolateral spine. These defects may be surgically created osseous defects created from traumatic injury to the bone. The product provides a bone void filler that resorbs and is replaced with bone during the healing process.
Device Story
BioSphere MIS Putty is an osteoconductive, bioactive bone void filler composed of 45S5 bioactive glass particles and an inert, moldable carrier. It is designed for implantation into bony voids or gaps. Upon implantation, the carrier is absorbed, and the spherical bioactive glass particles provide an osteoconductive surface; the natural packing of spheres creates 3D interconnected porosity to facilitate bone regeneration. The device is used by surgeons in clinical settings to fill defects in the extremities, pelvis, or posterolateral spine. The subject device modifies the predicate by supplying the putty in a prefilled cannula with a delivery gun to improve access to deep or minimally invasive surgical sites. The delivery mechanism does not alter the bone regeneration mechanism. The healthcare provider uses the delivery gun to extrude the putty into the target site; the device resorbs and is replaced by bone during healing.
Clinical Evidence
No clinical data. Bench testing only. Performance data included quantitative putty extrusion testing (reproducible amounts across temperatures and cannula conditions), 3-point bending tests for cannula structural integrity, qualitative delivery gun assembly assessment, and biocompatibility testing (non-cytotoxicity and endotoxin levels).
Technological Characteristics
Composition: 45S5 bioactive glass particles and inert moldable carrier. Form factor: Putty supplied in prefilled cannula with delivery gun. Principle: Osteoconductive bone void filler; 3D interconnected porosity via spherical particle packing. Sterilization: Not specified. Connectivity: None.
Indications for Use
Indicated for bony voids or gaps in the skeletal system (extremities and pelvis) not intrinsic to structural stability, and as a bone graft extender in the posterolateral spine. Applicable to surgically created or traumatic osseous defects.
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.
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January 19, 2018
Synergy Biomedical, LLC % Randy Prebula Partner Hogan Lovells U.S. LLP 555 Thirteenth Street, N.W. Washington, District of Columbia 20004
Re: K173301
Trade/Device Name: BioSphere MIS Putty (BioSphere MIS) Regulation Number: 21 CFR 888.3045 Regulation Name: Resorbable calcium salt bone void filler device Regulatory Class: Class II Product Code: MQV Dated: December 22, 2017 Received: December 22, 2017
Dear Mr. Prebula:
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 of medical device-related adverse events) (21 CFR 803); good
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manufacturing practice requirements as set forth in 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.
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.
For comprehensive regulatory information about medical devices and radiation-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.
# Katherine D. Kavlock -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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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: January 31, 2017 See PRA Statement on last page
510(k) Number (if known)
#### K173301
Device Name:
BioSphere MIS Putty (BioSphere MIS)
#### Indications for Use (Describe)
BioSphere MIS Putty is indicated only for bony voids or gaps that are not intrinsic to the stability of the bony structure. BioSphere MIS Putty is indicated to be gently packed into bony voids or gaps of the skeletal system as a bone void filler in the extremities and pelvis, and as a bone graft extender in the posterolateral spine. These defects may be surgically created osseous defects created from traumatic injury to the bone. The product provides a bone void filler that resorbs and is replaced with bone during the healing process.
Type of Use (Select one or both, as applicable)
区 Prescription Use (Part 21 CFR 801 Subpart D)
□ Over-The-Counter Use (21 CFR 801 Subpart C)
#### CONTINUE ON A SEPARATE PAGE IF NEEDED.
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FORM FDA 3881 (8/14)
Page 1 of 1 FDA
PSC Publishing Services (301) 443-6740 EP
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# 510(k) Summary BioSphere® MIS Putty
#### 1. Submitter Information:
Synergy Biomedical, LLC 100 Springhouse Dr Suite 108 Collegeville, PA 19426
Date Prepared: December 22, 2017
#### 2. Contact Information:
Randy Prebula Hogan Lovells US LLP 555 Thirteenth Street, NW Washington, DC 20004
#### 3. Device Name and Classification:
| Product Name: | BioSphere MIS Puttv |
|----------------------------|-------------------------------------------------|
| Common Name: | Bone Void Filler |
| Classification Regulation: | 21 CFR § 888.3045 |
| Classification Name: | Resorbable Calcium Salt Bone Void Filler Device |
| Classification Panel: | Orthopedic |
| Product Code: | MQV |
| Device Class: | Class II |
#### 4. Predicate Device:
BioSphere Putty (K140844, K122868)
#### 5. Device Description and Summary of Technological Characteristics:
BioSphere MIS Putty ("BioSphere MIS") is an osteoconductive, bioactive bone void filler that, like its predicate device, is composed primarily of medical-grade 4555 bioactive glass particles. The composition and formula of this material is unchanged and is identical to that used in the BioSphere Putty predicate. The bioactive glass is mixed with an inert, moldable carrier using the exact same composition and formula as used in the predicate device.
The only difference between the two devices is that BioSphere MIS Putty is supplied in a prefilled cannula with a delivery gun to aid with placement into certain types of bony voids that are otherwise difficult to reach. The manner in which the device is delivered to the target site does not play any role in the putty achieving its intended clinical purpose (i.e., supporting bone regeneration).
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Upon implantation of BioSphere MIS Putty into the target site, the carrier is absorbed by the site and the remaining bioactive glass particles provide an osteoconductive surface for bone formation. The bioactive glass particles are supplied in a spherical form, and the natural packing of the spheres creates 3-dimensional, interconnected porosity that allows for bone regeneration throughout the defect site. This is the same mechanism of action as with the predicate. In the posterolateral spine, BioSphere MIS Putty can be combined with autograff as a bone graft extender in the same manner as the predicate BioSphere Putty.
# 6. Intended Use / Indications for Use:
BioSphere MIS Putty is indicated only for bony voids or gaps that are not intrinsic to the stability of the bony structure. BioSphere MIS Putty is indicated to be gently packed into bony voids or gaps of the skeletal system as a bone void filler in the extremities and pelvis, and as a bone graft extender in the posterolateral spine. These defects may be surgically created osseous defects or osseous defects created from traumatic injury to the bone. The product provides a bone void filler that resorbs and is replaced with bone during the healing process.
# 7. Purpose of 510(k):
The purpose of this 510(k) is to modify the BioSphere Putty (K140844) by supplying the final putty formulation pre-filled in a cannula, with a delivery qun, instead of in an open bore syringe. This modification is being made to enhance access of the device to bony voids or gaps that are within the cleared predicate's indications for use, but were previously difficult to reach - namely, deep graft sites and graft sites resulting from minimally invasive surgery.
#### 8. Performance Data:
BioSphere MIS Putty was characterized by a variety of quantitative tests and qualitative assessments.
- . Putty extrusion was evaluated by measuring the dispensed putty amount following each pull of the delivery gun trigger. The results showed that the delivery gun was able to extrude a reproducible amount of putty for each trigger pull.
- o Assessments of putty extrusion were also conducted using room temperature and refrigerated samples to mimic colder operating room temperatures. Additionally, extrusion was evaluated with an open and partially blocked cannula end. The delivery gun was effective in extruding putty from the cannula regardless of putty temperature, and was able to extrude the putty through a partially blocked end.
- . A 3-point bending test was used to demonstrate that the cannulas did not critically fail resulting in fracture pieces or broken edges. All cannulas preferentially failed through plastic deformation, as seen by buckling and bending of the cannula.
- . A qualitative assessment of the delivery gun assembly showed that the cannula was easily attached and a stable attachment was maintained during putty extrusion.
- o Confirmatory testing of the BioSphere MIS Putty components showed the product was non-cytotoxic and had acceptable endotoxin levels.
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### 9. Conclusion:
BioSphere MIS Putty is as safe and effective as the predicate device. BioSphere MIS Putty has the same intended uses and similar indications, technological characteristics, and principles of operation as its predicate device. The only difference between the modified device and the cleared predicate (change in delivery mechanism from an open bore syringe to a cannula with delivery gun) does not impact its function as a bone void filler and raise no new issues of safety or effectiveness. Thus, BioSphere MIS Putty is substantially equivalent to the predicate.
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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.