The indications for the Corin Trinity™ PLUS Acetabular Shell as a total hip arthroplasty include:
o Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis,
o Rheumatoid arthritis,
o Correction of functional deformity,
o Revision of previously failed total hip arthroplasty
o Developmental dysplasia of the hip (DDH),
The Trinity™ PLUS Acetabular Shell is indicated for cementless use only.

Device Description

The Trinity™ PLUS Acetabular Shell is a component of a modular cup system consisting of a hemispherical press fit, titanium alloy shell for use with cobalt chrome alloy (Dual Mobility articulations only) or polyethylene liners and a dedicated range of ceramic and cobalt chrome alloy modular 12/14 taper femoral heads providing ceramic on polyethylene and metal on polyethylene articulations for use in total hip replacement procedures using any Corin femoral stem with a 12/14 taper connection. The acetabular shell has an outer porous structure produced by additive manufacturing using titanium alloy powder (ASTM F3001). The shell is available with or without a layer of electrochemically deposited biomimetic calcium phosphate coating. The Trinity™ PLUS acetabular shell is available with or without screw holes which permit the use of dedicated titanium screws to provide additional fixation if required.

AI/ML Overview

The provided text describes a 510(k) premarket notification for a hip implant device, the Corin Trinity™ PLUS Acetabular Shell. The notification focuses on demonstrating substantial equivalence to existing legally marketed predicate devices, rather than proving that the device meets specific acceptance criteria based on a study of its performance in a clinical setting against defined metrics.

Therefore, many of the requested categories (acceptance criteria, reported device performance, sample size for test set, data provenance, number of experts for ground truth, adjudication method, MRMC study, standalone performance, ground truth type, training set size, how ground truth for training set was established) are not applicable to this type of submission.

Here's a breakdown based on the information available:

1. A table of acceptance criteria and the reported device performance:

This information is not provided in the document as this is a 510(k) submission for substantial equivalence, not a clinical trial report with performance metrics. The "acceptance criteria" here are essentially proving the device is as safe and effective as predicate devices. The document details non-clinical testing to demonstrate this.

Non-Clinical Testing Conducted to Demonstrate Substantial Equivalence:

Test Category	Specific Tests	Result/Conclusion
Mechanical Tests	Static (Shear, Tensile, Compression)	Performed to show the device is comparable to predicate, within acceptable limits for intended use.
	Dynamic (Deformation, Bending Fatigue, Shear Fatigue, Range of Motion, Impingement, Shell Fatigue)	Performed to show the device is comparable to predicate, within acceptable limits for intended use.
Material/Structure Characterization	Porous Structure Characterization	Performed to show the device's porous structure is similar to predicate.
Biocompatibility	Bacterial Endotoxin Testing (BET) using Limulus Amebocyte Lystate (LAL) kinetic chromogenic methodology	Conducted on finished, sterilized product, presumably to confirm endotoxin levels are within acceptable limits.
Biological Response	Animal Data	Used to support substantial equivalence. (Specifics not detailed)

Conclusion from Non-Clinical Testing: The culmination of the results of the mechanical testing, characterization, and animal data indicate that the devices perform within their intended use and are substantially equivalent to the predicate devices.

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective):

Not Applicable for this 510(k) submission, as it relies on non-clinical testing and comparison to predicates, not a clinical test set with human subjects. The non-clinical tests would have their own sample sizes for mechanical specimens, but these are not specified in the document.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

Not Applicable. Ground truth, in the context of clinical studies, is not established for this type of submission. The "ground truth" for a 510(k) is the performance and safety profile of the predicate devices.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:

Not Applicable. There is no clinical test set requiring adjudication in this 510(k) submission.

5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

Not Applicable. This is a medical device for total hip arthroplasty, not an AI-assisted diagnostic or imaging device for human readers. No MRMC study was conducted.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

Not Applicable. This is a physical implantable device, not a software algorithm.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc):

Not Applicable in the traditional sense of a clinical study. The "ground truth" for this 510(k) submission is the established safety and effectiveness of the legally marketed predicate devices, which the new device is being compared against.

8. The sample size for the training set:

Not Applicable. There is no "training set" in the context of a clinical study for this 510(k) submission. Non-clinical tests were performed on device samples.

9. How the ground truth for the training set was established:

Not Applicable. As there is no training set, there's no ground truth to establish for it in this context.

Summary

{0}------------------------------------------------

Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

Corin USA Limited Rachel King Regulatory Affairs Associate 12750 Citrus Park Lane Tampa, Florida 33625

Re: K172551

Trade/Device Name: Corin TrinityTM PLUS Acetabular Shell Regulation Number: 21 CFR 888.3358 Regulation Name: Hip Joint Metal/Polymer/Metal Semi-Constrained Porous-Coated Uncemented Prosthesis Regulatory Class: Class II Product Code: LPH, LZO, OQG, OOI, MBL Dated: May 16, 2018 Received: May 17, 2018

June 15, 2018

Dear Ms. King:

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 manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820);

{1}------------------------------------------------

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 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.

Mark N. Melkerson -S

Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

{2}------------------------------------------------

Indications for Use

510(k) Number (if known) K172551

Device Name Corin Trinity™ PLUS Acetabular Shell

Indications for Use (Describe)

The indications for the Corin Trinity™ PLUS Acetabular Shell as a total hip arthroplasty include:

o Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis,

o Rheumatoid arthritis,

o Correction of functional deformity,

o Revision of previously failed total hip arthroplasty

o Developmental dysplasia of the hip (DDH),

The Trinity™ PLUS Acetabular Shell is indicated for cementless use only.

Type of Use (Select one or both, as applicable)

X Prescription Use (Part 21 CFR 801 Subpart D)

_ Over-The-Counter Use (21 CFR 801 Subpart C)

CONTINUE ON A SEPARATE PAGE IF NEEDED.

This section applies only to requirements of the Paperwork Reduction Act of 1995.

DO NOT SEND YOUR COMPLETED FORM TO THE PRA STAFF EMAIL ADDRESS BELOW

The burden time for this collection of information is estimated to average 79 hours per response, including the time to review instructions, search existing data sources, gather and maintain the data needed and complete and review the collection of information. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden, to:

Department of Health and Human Services Food and Drug Administration Office of Chief Information Officer Paperwork Reduction Act (PRA) Staff PRAStaff@fda.hhs.gov

"An agency may not conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a currently valid OMB number."

{3}------------------------------------------------

510(K) SUMMARY 3.

1. Applicant/Sponsor:	Corin USA12750 Citrus Park LaneSuite 120TampaFlorida 33625Registration No.: 1056629
2. Contact Person:	Rachel King, BSc (Hons)Regulatory Affairs AssociateCorin Limited+44 1285 884733rachel.king@coringroup.comLucinda Gerber, BA (Hons)Global Regulatory Affairs ManagerCorin Limited / Corin USA1 (772) 321-2478lucinda.gerber@coringroup.com
3. Date:	June 13, 2018
4. Proprietary Name:	Corin Trinity™ PLUS Acetabular Shell
5. Common Name:	Hip Prosthesis
6. Product Codes:	LPH, LZO, OQG, OQI, MBL
7. Classification Name:	Hip joint metal/polymer/metal semi-constrained porous-coateduncemented prosthesis (21CFR 888.3358)

8. Legally Marketed Devices to which Substantial Equivalence is claimed:

Corin Trinity™ Acetabular System (K093472, K110087, K122305 and K130128) (Primary predicate)
Biomet G7 OsseoTi (K140669)

9. Device Description:

{4}------------------------------------------------

The Trinity™ PLUS Acetabular shell is intended for use in primary and revision total hip arthroplasty to provide increased stability and reduce pain by replacing the hip joint articulation where there is evidence of sufficient bone to seat and support the components.

10. Intended Use / Indications:

The indications for the Corin Trinity™ PLUS Acetabular Shell as a total hip arthroplasty include:

Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis, O
O Rheumatoid arthritis,
O Correction of functional deformity,
Revision of previously failed total hip arthroplasty O
Developmental dysplasia of the hip (DDH), O

The Trinity™ PLUS Acetabular Shell is indicated for cementless use only.

11. Summary of Technologies/Substantial Equivalence:

The Corin Trinity™ PLUS Acetabular Shell is similar in terms of intended use, indications and materials as the predicates (K093472, K110087, K122305, K130128 and K140669). The range of sizes available for the Corin Trinity™ PLUS Acetabular Shell is similar to the range cleared for the Corin Trinity™ Acetabular System predicate devices.

The outer porous structure, produced by an additive layer manufacture technique, of the Corin Trinity™ PLUS Acetabular Shell is similar to the predicate Biomet G7 OsseoTi (K140669).

The inner shell incorporates the Corin Trinity™ Acetabular Shell design, dimensions, and locking mechanisms. The electrochemically deposited calcium phosphate coating on the Corin Trinity™ PLUS Acetabular Shell is identical to that on the Corin Trinity™ Acetabular System (K093472, K110087, K122305 and K130128). Based on these similarities, Corin believes that the Trinity™ PLUS Acetabular Shell is substantially equivalent to the predicate devices.

12. Non-Clinical Testing:

Previous testing was completed on the Trinity™ Acetabular System (K093472, K110087, K122305 and K130128), to support substantial equivalence. This testing is applicable to the Trinity™ PLUS Acetabular Shells as the sizing is similar and the liner mating features are identical.

Non-clinical testing conducted to demonstrate substantial equivalence includes static tests (Shear, Tensile, compression), Dynamic Tests (Deformation, Bending Fatigue, Shear Fatigue, Range of Motion, Impingement, Shell Fatigue), Porous Structure Characterization and Animal Data.

Bacterial Endotoxin Testing (BET) has been conducted on finished, sterilised product, using Limulus Amebocyte Lystate (LAL) kinetic chromogenic methodology.

13. Clinical Testing

Clinical testing was not necessary to determine substantial equivalence between the Trinity™ PLUS Acetabular Shell and the predicate devices.

The culmination of the results of the mechanical testing, characterization and animal data indicate that the devices perform within their intended use and are substantially equivalent to the predicate devices.

Regulation Number and Section

§ 888.3358 Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis.

(a)
Identification. A hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis is a device intended to be implanted to replace a hip joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across the joint. This generic type of device has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy or a titanium-aluminum-vanadium (Ti-6Al-4V) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The femoral stem and acetabular shell have a porous coating made of, in the case of Co-Cr-Mo substrates, beads of the same alloy, and in the case of Ti-6Al-4V substrates, fibers of commercially pure titanium or Ti-6Al-4V alloy. The porous coating has a volume porosity between 30 and 70 percent, an average pore size between 100 and 1,000 microns, interconnecting porosity, and a porous coating thickness between 500 and 1,500 microns. The generic type of device has a design to achieve biological fixation to bone without the use of bone cement.(b)
Classification. Class II.