# K112240: Dyna Locking Cannulated Screw

- Pathway: 510(k) (Traditional)
- Applicant: U&I Corp.
- Decided: Jan 4, 2012 after 153 days
- Product code: HWC (Screw, Fixation, Bone)
- Device class: 2
- Regulation: 21 CFR 888.3040
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K951389 (1995). 6 ancestors in all.
14 later devices descend from it; 1 cites it directly.
0 of 21 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K951389: Reunion Bone Screw System, Smith & Nephew Richards, Inc. (1995) Summary page 1.
- K962823: Synthes Sterile 3.0 MM Cannulated Screw and Threaded Washer, Synthes (Usa) (1996) Summary page 1.
- K963192: Synthes Sterile 3.5 MM and 4.0 MM Cannulated Screws, Synthes (Usa) (1996) Summary page 1.
- K963172: Synthes Sterile 4.5 MM Cannulated Screws, Synthes (Usa) (1996) Summary page 1.
- K021932: Synthes 6.5 MM Cannulated Screw, Synthes (Usa) (2002) Summary page 1.
- K962011: Synthes 7.0/7.3 MM Cannulated Screws, Synthes (Usa) (1996) Summary page 1.

## Most influential descendants
- K153656: PathLoc-SI Joint Fusion System (2016), 13 descendants of its own
- K181600: PathLoc-SI Joint Fusion System (2018), 11 descendants of its own
- K210035: ZESPIN SI Joint Fusion System, MegaCerfix Posterior Cervical Fixation System, MegaCerfix Anterior Cervical Plate System, Spinema Lumbar Plate System (2021), 10 descendants of its own
- K221050: ZESPIN SI Joint Fusion System, Paeon Posterior Cervical Fixation System, Paeon Anterior Cervical Plate System, Spinema Lumbar Plate System (2022), 6 descendants of its own
- K223719: Paeon Anterior Cervical Plate System, Elatus Lumbar Plate System (2023), 3 descendants of its own

## Indications for use
Intracapsular fractures of the femoral neck Intertrochanteric fractures of the femur Tibial plateau fractures Fractures of the dorsal pelvic ring Pelvic sacroiliac joint disruption Ankle arthrodesis Other indications where canceilous screws are currently used and a guided system may be beneficial

Source page: https://510kreport.com/device/K112240
Methodology: https://510kreport.com/methodology