# K242744: Trinity EVO Acetabular Shell

- Pathway: 510(k) (Traditional)
- Applicant: Corin U.S.A. Limited
- Decided: Jun 5, 2025 after 267 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: 14 generations back to K810258 (1981). 214 ancestors in all.
No later device cites it as a predicate yet.
0 of 214 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K172551: Trinity PLUS Acetabular Shell, Corin U.S.A. Limited (2018) Summary page 5.
- K181366: REDAPT Porous Acetabular Shell, Smith & Nephew, Inc. (2018) Summary page 5.

## Indications for use
The indications for the Trinity™ EVO Acetabular Shell as a total hip arthroplasty include: Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis. Rheumatoid arthritis. Correction of functional deformity. Developmental dysplasia of the hip (DDH)/Congenital dislocation of the hip (CDH) The Trinity™ EVO acetabular shell is also indicated for use in revisions of a previously failed total hip arthroplasty. The Trinity™ EVO Acetabular Shell is indicated for cementless use only.

Source page: https://510kreport.com/device/K242744
Methodology: https://510kreport.com/methodology