# K961527: MX703 and MX730 Continuous Flush Devices

- Pathway: 510(k) (Traditional)
- Applicant: Medex, Inc.
- Decided: Jun 6, 1996 after 45 days
- Product code: KRA (Catheter, Continuous Flush)
- Device class: 2
- Regulation: 21 CFR 870.1210
- 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 K770432 (1977). 1 ancestor in all.
No later device cites it as a predicate yet.
0 of 2 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K770432: Microflush, Medex, Inc. (1977) Summary page 1.
- (no number) Sorenson Research Company, Inc. C.F.S. INTRAFLO®: named in the summary without a submission number

## Indications for use
The MX703/MX730 is an attachment to a catheter-transducer system that permits continuous intravascular flushing at a slow infusion rate for the purpose of eliminating clotting, back-leakage, and waveform damping

Source page: https://510kreport.com/device/K961527
Methodology: https://510kreport.com/methodology