# K904690: Temp Marq (TM) Convective Warming System

- Pathway: 510(k) (Traditional)
- Applicant: Marquest Medical Products, Inc.
- Decided: Feb 1, 1991 after 108 days
- Product code: DWJ (System, Thermal Regulating)
- Device class: 2
- Regulation: 21 CFR 870.5900
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
10 later devices descend from it; 2 cite it directly.
0 of 11 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
- K011907: Snuggle Warm 4000 Convective Warming System (2001), 8 descendants of its own
- K061513: Level 1 Snuggle Warm Pediatric and Large Pediatric Underbody Blanket (2006), 3 descendants of its own
- K101148: Warm Air Model 135 Hyperthermia System and Blankets (2010), 2 descendants of its own
- K083336: Level 1 Snuggle Warm Adult Underbody Convective Warming Blanket, Model SW-2013, Level 1 Snuggle Warm Left Lateral (2009), 2 descendants of its own
- K141686: Equator Convective Warmer, Snuggle Warm Adult Full Body Convective Warming Blanket, Snuggle Warm Pediatricfull Body (2014), 1 descendant of its own

Source page: https://510kreport.com/device/K904690
Methodology: https://510kreport.com/methodology