# K140740: Transonic Tissue Perfusion Monitor

- Pathway: 510(k) (Traditional)
- Applicant: Transonic Systems, Inc.
- Decided: Jul 23, 2015 after 485 days
- Product code: DPW (Flowmeter, Blood, Cardiovascular)
- Device class: 2
- Regulation: 21 CFR 870.2100
- 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 K903633 (1990). 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)
- K903633: Advance Laser Flowmeter, Alf 21, Transonic Systems, Inc. (1990) Summary page 4.

## Indications for use
Transonic Systems' BLF22 and BLF22A tissue perfusion monitors are intended for use in the measurement of microvascular perfusion.

Source page: https://510kreport.com/device/K140740
Methodology: https://510kreport.com/methodology