# K973231: The Corifix Dynamic Hip Screw System

- Pathway: 510(k) (Traditional)
- Applicant: Corin USA
- Decided: Nov 20, 1997 after 85 days
- Product code: KTT (Appliance, Fixation, Nail/Blade/Plate Combination, Multiple Component)
- Device class: 2
- Regulation: 21 CFR 888.3030
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
5 later devices descend from it; 1 cites it directly.
0 of 6 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Stratec (Synthes) DHS System: named in the summary without a submission number

## Most influential descendants
- K071852: Aap Aps System (2007), 4 descendants of its own
- K120360: Ortho Solutions Trauma Plates for Osteosysnthesis (2012), 2 descendants of its own
- K202764: Ortho Solutions Plating System (2020), 1 descendant of its own
- K221787: Auxein's DHS/DCS Plate System (2023), 0 descendants of its own
- K210658: Volition Plating System (2021), 0 descendants of its own

## Indications for use
The Dynamic Hip Screw System devices are used in the treatment of femoral neck fractures in the pertrochanteric, intertrochanteric and high subtrochanteric regions of the femur, or in the treatment of combinations of these fractures. Pertrochanteric fractures occur from the greater to lesser trochanter. Intertrochanteric fractures occur within the trochanteric area. High subtrochanteric fractures occur immediately below the trochanter. The devices provide support to the femur and femoral head during the natural process of bone regeneration to repair the femoral fracture. The devices are designed to withstand the in vivo loads experienced during normal activity throughout the life of the implant.

Source page: https://510kreport.com/device/K973231
Methodology: https://510kreport.com/methodology