# K913233: Codman Lhalo Split Ring Retractor System

- Pathway: 510(k) (Traditional)
- Applicant: Codman & Shurtleff, Inc.
- Decided: Jul 31, 1991 after 9 days
- Product code: GZT (Retractor, Self-Retaining, For Neurosurgery)
- Device class: 2
- Regulation: 21 CFR 882.4800
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
13 later devices descend from it; 2 cite it directly.
1 of 14 devices in its family (counting itself) has a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K032331: Doro Radiolucent Headrest System and Horseshoe Headrests,and Non-Radiolucent J-Arm Retractor System (Aluminum Alloy) (2003), 10 descendants of its own
- K063494: Doro Radiolucent Headrest System ( Also Mri-Compatible) and Components (2007), 7 descendants of its own
- K072208: Mayfield Disposable and Reusable Titanium Skull Pins (2007), 4 descendants of its own
- K103493: Head Fiation Device (HFD 100) (2011), 2 descendants of its own
- K191740: DORO LUCENT® iXI and iMRI Headrest System (2020), 1 descendant of its own

Source page: https://510kreport.com/device/K913233
Methodology: https://510kreport.com/methodology