# K921418: Ultra-Core Biopsy Needles

- Pathway: 510(k) (Traditional)
- Applicant: Medical Device Technologies, Inc.
- Decided: Jun 19, 1992 after 87 days
- Product code: DWO (Needle, Biopsy, Cardiovascular)
- Device class: 1
- Regulation: 21 CFR 878.4800
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
23 later devices descend from it; 1 cites it directly.
0 of 24 devices in its family (counting itself) have 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
- K980226: Manan Pro-Mag Automatic Biopsy System (1998), 22 descendants of its own
- K051506: Mielo-Can, Best-Lisas, Ben - Bone Biopsy.  Fast-Cut, Colt, Spring-Cut, Bio-Cut - Soft Tissue Biopsy (2005), 18 descendants of its own
- K131157: Ranfac Bone Marrow Aspiration Needle (2013), 12 descendants of its own
- K140991: Ranfac Aspiration Needle with Adjustable Guide (2014), 5 descendants of its own
- K150563: Marrow Cellution Bone Marrow Aspiration Needle (2015), 4 descendants of its own

Source page: https://510kreport.com/device/K921418
Methodology: https://510kreport.com/methodology