K053189 · Zimmer, Inc. · JDC · Dec 9, 2005 · Orthopedic
Device Facts
Record ID
K053189
Device Name
COONRAD/MORREY TOTAL ELBOW, MODEL 8105 SERIES
Applicant
Zimmer, Inc.
Product Code
JDC · Orthopedic
Decision Date
Dec 9, 2005
Decision
SESE
Submission Type
Special
Regulation
21 CFR 888.3150
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
Indications include: post-traumatic lesions or bone loss contributing to elbow instability; ankylosed joints, especially in cases of bilateral ankylosis from causes other than sepsis; advanced rheumatoid or degenerative arthritis with incapacitating pain; revision arthroplasty, and instability or loss of motion when the degree of joint damage precludes less radical procedures. The candidate for total elbow arthroplasty should exhibit joint destruction which significantly compromises the activities of daily living. Patient with single joint involvement (generally those with traumatic or degenerative arthritis) or significant lower extremity disability which require walking aids are less amenable to treatment than patients with advanced and predominantly upper extremity involvement. If possible, elbow replacement should be done after hip or knee surgery to avoid excessive stress to the prosthesis required by crutch walking during total hip or knee rchabilitation.
Device Story
Coonrad/Morrey Total Elbow is a constrained metal/polymer cemented prosthesis; designed to replace damaged elbow joints. Available in regular, small, and extra small sizes; left and right configurations. Modified ulnar stem lengths added to accommodate varying patient anatomy. Used by surgeons in clinical settings to restore motion and reduce pain in patients with severe joint destruction. Device requires bone cement for fixation. Benefits include improved joint stability and function for patients where less radical procedures are insufficient.
Clinical Evidence
Bench testing only.
Technological Characteristics
Constrained metal/polymer cemented elbow prosthesis. Available in multiple sizes (regular, small, extra small) and configurations (left/right). Features modified ulnar stem lengths. Designed for use with bone cement.
Indications for Use
Indicated for patients with elbow joint destruction significantly compromising activities of daily living, including post-traumatic lesions, bone loss, ankylosed joints, advanced rheumatoid or degenerative arthritis, and revision arthroplasty. Less suitable for patients with single joint involvement or significant lower extremity disability requiring walking aids.
Regulatory Classification
Identification
An elbow joint metal/polymer constrained cemented prosthesis is a device intended to be implanted to replace an elbow joint. It is made of alloys, such as cobalt-chromium-molybdenum, or of these alloys and of an ultra-high molecular weight polyethylene bushing. The device prevents dislocation in more than one anatomic plane and consists of two components that are linked together. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).
Special Controls
*Classification.* Class II. The special controls for this device are:(1) FDA's:
(i) “Use of International Standard ISO 10993 ‘Biological Evaluation of Medical Devices—Part I: Evaluation and Testing,’ ”
(ii) “510(k) Sterility Review Guidance of 2/12/90 (K90-1),”
(iii) “Guidance Document for Testing Orthopedic Implants with Modified Metallic Surfaces Apposing Bone or Bone Cement,”
(iv) “Guidance Document for the Preparation of Premarket Notification (510(k)) Application for Orthopedic Devices,”
(v) “Guidance Document for Testing Non-articulating, ‘Mechanically Locked’ Modular Implant Components,”
(2) International Organization for Standardization's (ISO):
(i) ISO 5832-3:1996 “Implants for Surgery—Metallic Materials—Part 3: Wrought Titanium 6-Aluminum 4-Vandium Alloy,”
(ii) ISO 5832-4:1996 “Implants for Surgery—Metallic Materials—Part 4: Cobalt-Chromium-Molybdenum Casting Alloy,”
(iii) ISO 5832-12:1996 “Implants for Surgery—Metallic Materials—Part 12: Wrought Cobalt-Chromium-Molybdenum Alloy,”
(iv) ISO 5833:1992 “Implants for Surgery—Acrylic Resin Cements,”
(v) ISO 5834-2:1998 “Implants for Surgery—Ultra High Molecular Weight Polyethylene—Part 2: Moulded Forms,”
(vi) ISO 6018:1987 “Orthopaedic Implants—General Requirements for Marking, Packaging, and Labeling,”
(vii) ISO 9001:1994 “Quality Systems—Model for Quality Assurance in Design/Development, Production, Installation, and Servicing,” and
(viii) ISO 14630:1997 “Non-active Surgical Implants—General Requirements,”
(3) American Society for Testing and Materials':
(i) F 75-92 “Specification for Cast Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implant Material,”
(ii) F 648-98 “Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants,”
(iii) F 799-96 “Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Forgings for Surgical Implants,”
(iv) F 981-93 “Practice for Assessment of Compatibility of Biomaterials (Nonporous) for Surgical Implant with Respect to Effect of Material on Muscle and Bone,”
(v) F 1044-95 “Test Method for Shear Testing of Porous Metal Coatings,”
(vi) F 1108-97 “Specification for Titanium-6 Aluminum-4 Vanadium Alloy Castings for Surgical Implants,”
(vii) F 1147-95 “Test Method for Tension Testing of Porous Metal Coatings, ” and
(viii) F 1537-94 “Specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implants.”
{0}------------------------------------------------
Image /page/0/Picture/0 description: The image shows the logo for Zimmer. The logo consists of a large, stylized "Z" inside of a circle, followed by the word "zimmer" in a sans-serif font. The logo is black and white and appears to be a company logo.
# KOS 3189
#### DEC 9 2005
Summary of Safety and Effectiveness
| Submitter: | Zimmer, Inc.<br>P.O. Box 708<br>Warsaw, IN 46581-0708 |
|--------------------------------------|---------------------------------------------------------------------------------------------------------------------|
| Contact Person: | Laura D. Williams, RAC<br>Manager, Corporate Regulatory Affairs<br>Telephone: (574) 372-4523<br>Fax: (574) 372-4605 |
| Date: | November 11, 2005 |
| Trade Name: | Coonrad/Morrey Total Elbow |
| Common Name: | Total Elbow Prosthesis |
| Classification Name<br>and Reference | Elbow joint metal/polymer constrained elbow<br>prosthesis - 21 CFR § 888.3150 |
| Predicate Device: | Coonrad/Morrey Total Elbow,<br>manufactured by Zimmer, Inc.,<br>K001989, cleared July 25, 2000 |
Device Description: The Coonrad Morrey Total Elbow is a total elbow prosthesis designed for use with bone cement. It is available in regular, small and extra small sizes, in right and left configurations.
#### Intended Use:
Indications include: post-traumatic lesions or bone loss contributing to elbow instability; ankylosed joints, especially in cases of bilateral ankylosis from causes other than sepsis; advanced rheumatoid or degenerative arthritis with incapacitating pain; revision arthroplasty, and instability or loss of motion when the degree of joint damage precludes less radical procedures.
The candidate for total elbow arthroplasty should exhibit joint destruction which significantly compromises the activities of daily living. Patient with single joint involvement (generally those with traumatic or degenerative arthritis) or significant lower extremity disability which require walking aids are less amenable to treatment than patients with advanced and predominantly upper extremity involvement. If possible, elbow replacement should be done after hip or knee surgery to avoid excessive stress to the prosthesis required by crutch walking during total hip or knee rchabilitation.
{1}------------------------------------------------
KCS3189 (pg 2 of 2)
Image /page/1/Picture/1 description: The image contains the logo for Zimmer. The logo consists of a large, stylized letter "Z" inside of a circle. To the right of the circle is the word "zimmer" in a smaller, sans-serif font.
## Comparison to Predicate Device:
Ulnar Assemblies of modified stem length are being added to accommodate varying anatomy. All other dimensions will remain unchanged compared to the predicate devices.
#### Performance Data (Nonclinical and/or Clinical):
Results of nonclinical analysis indicate that the modified device is substantially equivalent to the predicate.
{2}------------------------------------------------
Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health and Human Services. The logo features a stylized caduceus, which is a symbol often associated with medicine and healthcare. The words "DEPARTMENT OF HEALTH AND HUMAN SERVICES . USA" are arranged in a circular pattern around the caduceus.
DEC 9 2005 Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Laura D. Williams, RAC Manager, Corporate Regulatory Affairs Zimmer. Inc. P.O. Box 708 Warsaw, Indiana 46581-0708
Re: K053189
Trade/Device Name: Coonrad/Morrey Total Elbow Regulation Number: 21 CFR 888.3150 Regulation Name: Elbow joint metal/polymer constrained cemented prosthesis Regulatory Class: II Product Code: JDC Dated: November 11, 2005 Received: November 15, 2005
Dear Ms. Williams:
We have reviewed your Section 510(k) premarket notification of intent to market the device we nave reviewed your bectorn 310(t) presidentially equivalent (for the indications felerenced above and nave determined in the enclicate devices marketed in interstate for use stated in the cherosure) to regally manetteent date of the Medical Device American be of Drya commerce prior to May 20, 1976, the encordance with the provisions of the Federal Food, Drug.
devices that have been reclassified in accordance with the provisions of the Fed devices that have been recuire approval of a premarket approval application (PMA). and Cosment Act (Act) that do not requent appen to the general controls provisions of the Act. The r ou may, therefore, market the act include requirements for annual registration, listing of general controls provisions of use tice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it If your device is classified (see above) into existing major regulations affecting your device can
may be subject to such additional controls. Existing major regulations on may be subject to such additional controller Entroller Controller.
be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may be found in the Code of Peachartergarine your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean Please be advised that I DA s issualled of a succession in other requirements of the Act that I'DA has made a decemination administered by other Federal agencies. You must or any Federal statutes and regulations annualing, but not limited to: registration and listing (21 comply with an the Ace 31equirements, and manufacturing practice requirements as set CTN in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic form in the quality systems (Sections 531-542 of the Act); 21 CFR 1000-1050.
{3}------------------------------------------------
Page 2 - Laura D. Williams, RAC
This letter will allow you to begin marketing your device as described in your Section 510(k) I mis lotter will and myour he FDA finding of substantial equivalence of your device to a legally promation notineation: "The PDF and elessification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please If you dosire of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small other Ectorers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/industry/support/index.html.
Sincerely yours,
Mark N. Melkerson
Acting Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
{4}------------------------------------------------
K053189
### Indications for Use
510(k) Number (if known):
Device Name:
Coonrad/Morrey Total Elbow
#### Indications for Use:
Indications include: post-traumatic lesions or bone loss contributing to elbow instability; ankylosed joints, especially in cases of bilateral ankylosis from causes other than sepsis; advanced rheumatoid or degenerative arthritis with incapacitating pain; revision arthroplasty, and instability or loss of motion when the degree of joint damage precludes less radical procedures.
The candidate for total elbow arthroplasty should exhibit joint destruction which significantly compromises the activities of daily living. Patient with single joint involvement (generally those with traumatic or degenerative arthritis) or significant lower extremity disability which require walking aids are less amenable to treatment than patients with advanced and predominantly upper extremity involvement. If possible, elbow replacement should be done after hip or knee surgery to avoid excessive stress to the prosthesis required by crutch walking during total hip or knee rehabilitation.
Prescription Use _ X (Part 21 CFR 801 Subpart D) AND/OR
Over-The-Counter Use __ (21 CFR 807 Subpart C)
(Please do not write below this line - Continue on another page if needed)
Concurrence of CDRH, Office of Device Evaluation (ODE)
ZS
(Division Sign-Off) Division of General, Restorative, and Neurological Devices
Page 1 of 1
510(k) Number_ K053189
Predicate graph will load when search results are available.
Embedding visualization will load when search results are available.
PDF viewer will load when search results are available.
Loading panels...
Select an item from Submissions
Click any panel, subpart, regulation, product code, or device to see details here.
Section Matches
Results will appear here.
Product Code Matches
Results will appear here.
Special Control Matches
Results will appear here.
Loading collections...
Loading
My Alerts
You will receive email notifications based on the filters and frequency you set for each alert.
Sort by:
Create Alert
Search Filters
Agent Token
Create a read-only bearer token for Claude, ChatGPT, or other agents that can call HTTP APIs.
Copy this now. It will not be shown again.
Connected apps
Apps you authorized through browser sign-in. Disconnecting revokes their access immediately.
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.