# K953564: Medtronic Overpressure/Vacuum Relief Valve

- Pathway: 510(k) (Traditional)
- Applicant: Medtronic Cardiac Surgery, Medtronic, Inc.
- Decided: Feb 2, 1996 after 186 days
- Product code: DTL (Adaptor, Stopcock, Manifold, Fitting, Cardiopulmonary Bypass)
- Device class: 2
- Regulation: 21 CFR 870.4290
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
14 later devices descend from it; 1 cites it directly.
2 of 15 devices in its family (counting itself) have a Class I recall.

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

## Most influential descendants
- K031700: Medtronic Resting Heart System, Model AAR1000 and 711 (2003), 13 descendants of its own
- K111972: Affinity CP Centrifugal Pump, Resting Heart Sys.,Myotherm Cardioplegia Deliv.,Affinity Hollow Fiber Oxygenator,Aaf (2011), 5 descendants of its own
- K090006: Lifebridge B2T, Model 7001 (2009), 5 descendants of its own
- K120988: DLP Single Stage Venous Cannula, DLP Right Angle Single Stage Venous Cannula, DLP Single Stage Venous Cannula with Right (2012), 4 descendants of its own
- K140165: MC2 Two-Stage Venous Cannula, Oval MC2 Two-Stage Venous Cannula, Thin Wall Two-Stage Venous Cannula, MC2X Three-Stage VE (2014), 2 descendants of its own

Source page: https://510kreport.com/device/K953564
Methodology: https://510kreport.com/methodology