# K172551: Trinity PLUS Acetabular Shell

- Pathway: 510(k) (Traditional)
- Applicant: Corin U.S.A. Limited
- Decided: Jun 15, 2018 after 296 days
- Product code: LPH (Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3358
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 13 generations back to K810258 (1981). 166 ancestors in all.
4 later devices descend from it; 2 cite it directly.
0 of 170 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K093472: Trinity Acetabular System, Corin USA (2010) Summary page 4.
- K110087: Corin Trinity Acetbular System with Hxlpe Liners, Corin USA (2011) Summary page 4.
- K122305: Corin Trinity-I Acetabular Shell, Corin USA (2012) Summary page 4.
- K130128: Trinity Acetabular System, Corin Medical (2013) Summary page 4.
- K140669: G7 Osseoti Acetublar Shells, Biomet, Inc. (2014) Summary page 4.

## Most influential descendants
- K201657: Corin Ltd. Hip Products: Trinity™ Acetabular System, Trinity™ PLUS Acetabular Shell, MetaFix™ Hip System, TriFit™ CF and TS Hip Systems, TaperFit™ Hip System, Revival™ Modular Hip System, MiniHip™, Trinity™ Dual Mobility, MobiliT, BiPolar-i, OMNI MOD™ Hip System, OMNI K1 and K2 Hip Systems, OMNI Bipolar Heads, Corin Biolox Delta Ceramic Heads, OMNI Delta Ceramic Heads (2021), 2 descendants of its own
- K241472: Icona Hip Stem (2024), 1 descendant of its own
- K261576: Icona Hip Stem (2026), 0 descendants of its own
- K242744: Trinity EVO Acetabular Shell (2025), 0 descendants of its own

## Indications for use
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, Rheumatoid arthritis, Correction of functional deformity, Revision of previously failed total hip arthroplasty Developmental dysplasia of the hip (DDH), The Trinity™ PLUS Acetabular Shell is indicated for cementless use only.

Source page: https://510kreport.com/device/K172551
Methodology: https://510kreport.com/methodology