The Excia Hip System is intended to replace the hip joint. The device is intended for: Patients suffering from severe hip pain and disability due to rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral head and nonunion of previous fractures of the femur Patients with congenital hip dysplasia, protrusion acetabuli, or slipped capital femoral ephiphysis Patients suffering from disability due to previous fusion Patients with acute femoral neck fractures The Excia Hip System is available with two (2) femoral stems. One is manufactured from CoCr and intended for cemented fixation. The other femoral stem is for uncemented fixation and manufactured from Ti with Plasmapore with or without µCaP®
Device Story
Excia T femoral stem is a line extension of the Excia Total Hip System; designed for uncemented hip arthroplasty. Device consists of a titanium femoral stem with Plasmapore coating; features 12/14 taper; available in sizes 8-20; lacks trochanter wing; includes asymmetrical distal tip. Implanted by orthopedic surgeons in clinical/hospital settings to replace diseased or damaged hip joints. Provides structural support for prosthetic hip components; restores joint function; reduces patient pain/disability. Substantially equivalent to existing Excia and Synergy hip systems.
Clinical Evidence
No clinical data provided. Substantial equivalence supported by bench testing only. Endurance properties of the stem, head, and neck were evaluated per FDA guidance, ASTM F2068-09, ISO 7206-4, and ISO 7206-6.
Technological Characteristics
Material: Titanium (Ti) with Plasmapore coating. Design: 12/14 taper, sizes 8-20, asymmetrical distal tip, no trochanter wing. Intended for uncemented fixation. Standards: ASTM F2068-09, ISO 7206-4, ISO 7206-6.
Indications for Use
Indicated for patients requiring hip joint replacement due to severe pain/disability from rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis, femoral head nonunion, congenital hip dysplasia, protrusion acetabuli, slipped capital femoral epiphysis, previous fusion, or acute femoral neck fractures.
Regulatory Classification
Identification
A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.
Predicate Devices
Aesculap Implant Systems Excia Total Hip System (K092143)
Aesculap Implant Systems Excia Total Hip System (K060918)
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Aesculap Implant Systems Excia Total Hip System - Excia T
### JUL 2 1 2014
#### в. 510(k) SUMMARY (as required by 21 CFR 807.92)
#### Excia Total Hip System Excia T Femoral Stem
April 08, 2014
#### COMPANY:
Aesculap Implant Systems, LLC 3773 Corporate Parkway Center Valley, PA 18034
Establishment Registration Number: 3005673311
#### CONTACT:
Julie Tom Wing 610-984-9147 (phone) 610-791-6882 (fax) julie tomwing@aesculap.com
#### TRADE NAME:
Excia Total Hip System
#### COMMON NAME:
Femoral Hip Stem
#### CLASSIFICATION NAME(s):
Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis
Hip joint femoral (hemi-hip) metallic cemented or uncemented prosthesis
Hip joint femoral (hemi-hip) metal polymer cemented or uncemented prosthesis
REGULATION NUMBER(S): 888.3353; 888.3360; 888.3390
CLASSIFICATION PRODUCT CODE(S): LZO
SUBSEQUENT PRODUCT CODE(S): LWJ; KWY
#### SUBSTANTIAL EQUIVALENCE
Aesculap Implant Systems, LLC believes that the addition of Excia T femoral stems to Excia Total Hip System is substantially equivalent to Aesculap Implant Systems Excia Total Hip System (510(K)s K092143 and K060918) and Smith & Nephew Synergy Hip System.
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#### DEVICE DESCRIPTION
Excia T femoral stem is manufactured from Titanium (Ti) with a Plasmapore coating. The femoral stem will be offered in a 12/14 taper in stem sizes 8 to 20. The stems are designed without a trochanter wing and features a shorter stem length with an asymmetrical distal tip.
Excia T femoral stem is intended for uncemented use.
#### PURPOSE FOR PREMARKET NOTIFICATION
The purpose of this premarket notification is to gain clearance of Excia T 12/14 femoral stems, a line extension which complements the full product range of Aesculap Implant Systems Excia Hip System (510(K)s K042344, K060437, K060918, and K061344, and K092143).
#### INDICATIONS FOR USE
The Excia Hip System is intended to replace the hip joint.
The device is intended for:
- Patients suffering from severe hip pain and disability due to rheumatoid arthritis, . osteoarthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral head and nonunion of previous fractures of the femur
- Patients with congenital hip dysplasia, protrusion acetabuli, or slipped capital femoral . ephiphysis
- . Patients suffering from disability due to previous fusion
- . Patients with acute femoral neck fractures
The Excia Hip System is available with two (2) femoral stems. One is manufactured from CoCr and intended for cemented fixation. The other femoral stem is for uncemented fixation and manufactured from Ti with Plasmapore with or without µCaP®
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### TECHNOLOGICAL CHARACTERISTICS (compared to Predicate(s)}
The addition of 12/14 Excia T femoral hip stems to Aesculap Excia Hip System is substantially equivalent to the predicates, Excia Hip System and Smith & Nephew Synergy Hip System, all previously cleared by FDA. The subject device has the same technological characteristics through comparison of the predicate devices' indications for use, design, materials of construction, manufacturing process, and range of sizes offered.
#### PERFORMANCE DATA
Endurance properties of the Excia T stem, head and neck were evaluated in accordance to Guidance for Industry and FDA Staff Non-clinical Information for Femoral Prostheses, September 17, 2007; ASTM F2068-09; ISO 7206-4 and ISO 7206-6. Testing demonstrated that the subject device is substantially equivalent to the predicate devices.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Public Health Service
Food and Drug Administration 10903 New Hampshire Avenue Document Control Center - WO66-G609
July 21, 2014
Aesculap Implant Systems, LLC % Ms. Julie Tom Wing Regulatory Affairs Specialist 3773 Corporate Parkway Center Valley, Pennsylvania 18034
Re: K140915
Trade/Device Name: Excia Total Hip System Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis Regulatory Class: Class II Product Code: LZO, LWJ, KWY Dated: July 2, 2014 Received: July 3, 2014
Dear Ms. Wing:
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
Image /page/3/Picture/11 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo is circular and contains the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an abstract image of an eagle.
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Page 2 - Ms. Julie Tom Wing
(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.
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/ReportalProblem/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 yours.
# Lori A. Wiggins
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)
K140915
Device Name Excia Total Hip System
Indications for Use (Describe)
The Excia Hip System is intended to replace a hip joint.
The device is intended for:
· Patients suffering from severe hip pain and disability due to rheumatoid arthritis, traumatic arthritis, polyarthritis, collagen disorders, avascular necrosis of the femoral head and nonunion of previous fractures of the femur
· Paticats with congenital hip dysplasia, protrusion acctabuli, or slipped capital femoral ephiphysis
· Patients suffering from disability due to previous fusion
· Patients with acute femoral neck fractures
The Excia Hip System is available with two (2) femoral stems. One is manufactured for cemented fixation. The other femoral stem is for uncemented from Ti with Plasmapore with or with or without yCaP®.
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)
PLEASE DO NOT WRITE BELOW THIS LINE - CONTINUE ON A SEPARATE PAGE IF NEEDED.
#### FOR FDA USE ONLY
Concurrence of Center for Devices and Radiological Health (CDRH) (Signature)
## Elizabeth L. Frank -S
Division of Orthopedic Devices
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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.
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
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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.