510(k) · Cleared
ClearedPresto 1000 System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Physiosonics, Inc. · IYN System, Imaging, Pulsed Doppler, Ultrasonic
Cleared on Dec 13, 2012 as substantially equivalent to K002533 (Spencer Technologies, 2000) after a 23-day review. Its family tree reaches back 1 generation to 2000.
- Decided
- Dec 13, 2012
- Review
- 23 days
- Class
- Class II
- Product code
- IYN
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K002533 (2000). No later device cites it as a predicate yet.
- Root · 1 generation backK002533 TCD 100M, PWD13 TransducerSpencer Technologies · 2000 · Recalled
- This deviceK123565 Presto 1000 SystemPhysiosonics, Inc. · 2012
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K002533 | TCD 100M, PWD13 Transducer | Spencer Technologies | 2000 | 1 |
| 0 (this device) | K123565 | Presto 1000 System | Physiosonics, Inc. | 2012 | — |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in IYN? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new IYN device
- #1 K240850 EPIQ Series Diagnostic Ultrasound Systems…score 32.1 · 24 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K002533 | TCD 100M, PWD13 TransducerSummary page 1…IYN, [TX Class Regulatory Class 11 Predicate Device: Spencer Technologies, Inc., K002533 TCD 100 M, Transcranial Doppler Ultrasound System, CFR… | 2000 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Its one ancestor has a recall.
- 6 other devices also cite its predicate K002533.
How does its category compare?
All IYN devicesIYN System, Imaging, Pulsed Doppler, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · IYN
57in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · IYN
124in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · IYN
10in 2025
Class I (1 since 2007) Class II/III not classified
Adverse event reports per year · IYN
610in 2025
MAUDE reports naming product code IYN, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 13 | 26 | 16 | 3 |
| 2008 | 25 | 18 | 12 | 2 |
| 2009 | 18 | 29 | 8 | 9 |
| 2010 | 29 | 67 | 10 | 17 |
| 2011 | 39 | 46 | 8 | 18 |
| 2012 | 43 | 37 | 3 | 20 |
| 2013 | 51 | 60 | 8 | 18 |
| 2014 | 56 | 39 | 2 | 48 |
| 2015 | 54 | 55 | 3 | 116 |
| 2016 | 60 | 56 | 2 | 145 |
| 2017 | 64 | 83 | 0 | 146 |
| 2018 | 59 | 85 | 7 | 85 |
| 2019 | 47 | 79 | 0 | 59 |
| 2020 | 57 | 72 | 4 | 67 |
| 2021 | 46 | 105 | 8 | 213 |
| 2022 | 53 | 105 | 10 | 186 |
| 2023 | 44 | 115 | 4 | 229 |
| 2024 | 50 | 119 | 1 | 266 |
| 2025 | 57 | 124 | 10 | 610 |
| 2026 | 44 | 107 | 2 (1) | — |
What is it indicated for?
The Presto 1000 transcranial Doppler ultrasound system is intended for use in the ICU and surgical suite as an ultrasound fluid flow analysis system for the monitoring of middle cerebral artery blood velocities. Vessels intended for monitoring are solely the MlI segments of the middle cerebral arteries via the temporal windows on the left and right sides of the head. The Presto 1000 calculates cerebrovascular flow index values to identify the presence of…
Read the full statement (157 words)
The Presto 1000 transcranial Doppler ultrasound system is intended for use in the ICU and surgical suite as an ultrasound fluid flow analysis system for the monitoring of middle cerebral artery blood velocities. Vessels intended for monitoring are solely the MlI segments of the middle cerebral arteries via the temporal windows on the left and right sides of the head.
The Presto 1000 calculates cerebrovascular flow index values to identify the presence of hemodynamically significant deviations from normal values. It records changes in these indices over time for later review, displays trends in user selected flow indices, and generates alerts when user selected indices exceed user defined levels, based on physician requirements and patient needs.
The device is not intended to replace other means of evaluating vital patient physiological processes, such as pulse oximetry, electroencephalography or electrocardiography, is not intended to be used in fetal applications, and is not intended to be used in the sterile field.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K123565 · printed Nov 4, 2026
Cite this page
510(k) Report. “K123565: Presto 1000 System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K123565
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026