# K103518: Trinity Acetabular System

- Pathway: 510(k) (Traditional)
- Applicant: Corin USA
- Decided: Mar 9, 2011 after 99 days
- Product code: LWJ (Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3360
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 9 generations back to K955033 (1996). 108 ancestors in all.
8 later devices descend from it; 1 cites it directly.
0 of 116 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 1.
- K082525: Corin Metafix Femoral Stem, Corin USA (2010) Summary page 1.
- K083312: Minihip Stem, Corin USA (2010) Summary page 1.

## Most influential descendants
- K122185: U-Motion II Acetabular System (2013), 7 descendants of its own
- K163441: Locking Cage, Full XPE Cup (2017), 3 descendants of its own
- K132455: U-Motion II PS+ Cup (2013), 3 descendants of its own
- K172833: E-XPE Acetabular Components and U-Motion II Acetabular Cup (2018), 2 descendants of its own
- K170089: U-Motion II Acetabular System— Additional sizes (2017), 2 descendants of its own

## Indications for use
The indications for the Trinity Acetabular System 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) or congenital dysplasia of the hip (CDH) The Trinity Acetabular System is intended for cementless use only.

Source page: https://510kreport.com/device/K103518
Methodology: https://510kreport.com/methodology