510(k) Report

510(k) · Cleared

Cleared

Targetscn Transrectal Ultrasound System

K041639510(k) TraditionalCleared Sep 2, 200477-day reviewClass II21 CFR 892.1560

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Envisioneering, LLC · IYO System, Imaging, Pulsed Echo, Ultrasonic

Cleared on Sep 2, 2004 as substantially equivalent to K864807 (Teknar, Inc., 1987) after a 77-day review. Its family tree reaches back 1 generation to 1987. 5 later devices descend from it.

Decided
Sep 2, 2004
Review
77 days
Class
Class II
Product code
IYO
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to K864807 (1987). 5 later devices descend from it, 1 citing it directly.

Descendants, by year cleared 2011: 1 descendant cleared2013: 1 descendant cleared2021: 2 descendants cleared2023: 1 descendant clearedK864807 · Teknar Proscan (TM) · Teknar, Inc. · 19871990200020102020
Descendants, by generation 1 generation forward: 1 descendant2 generations forward: 1 descendant3 generations forward: 1 descendant4 generations forward: 1 descendant5 generations forward: 1 descendant K864807 · Teknar Proscan (TM) · Teknar, Inc. · 19870+5
  1. Root · 1 generation backK864807 Teknar Proscan (TM)Teknar, Inc. · 1987
  2. This deviceK041639 Targetscn Transrectal Ultrasound SystemEnvisioneering, LLC · 2004
  3. Descendant · cites it directly · 4 of its ownK111347 Isrobot Mona LisaBiobot Surgical Pte., Ltd. · 2011
  4. Descendant · 2 generations on · 3 of its ownK130944 Isr'obot Mona LisaBiobot Surgical Pte., Ltd. · 2013
  5. Descendant · 3 generations on · 2 of its ownK203659 iSR'obot Mona Lisa 1.0Biobot Surgical Pte., Ltd. · 2021
  6. Descendant · 4 generations on · 1 of its ownK213411 iSR’obot Mona Lisa 2.0Biobot Surgical Pte., Ltd. · 2021
  7. Descendant · 5 generations on · 0 of its ownK232320 iSR`obot Mona Lisa 2.0Biobot Surgical Pte., Ltd. · 2023

Most influential descendants

Showing 5 of 5 · See all
  • K111347Isrobot Mona LisaBiobot Surgical Pte., Ltd. · 2011 · cites it directly4descendants
  • K130944Isr'obot Mona LisaBiobot Surgical Pte., Ltd. · 2013 · 2 generations on3descendants
  • K203659iSR'obot Mona Lisa 1.0Biobot Surgical Pte., Ltd. · 2021 · 3 generations on2descendants
  • K213411iSR’obot Mona Lisa 2.0Biobot Surgical Pte., Ltd. · 2021 · 4 generations on1descendant
  • K232320iSR`obot Mona Lisa 2.0Biobot Surgical Pte., Ltd. · 2023 · 5 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K864807Teknar Proscan (TM)Teknar, Inc.1987—
0 (this device)K041639Targetscn Transrectal Ultrasound SystemEnvisioneering, LLC2004—
+1K111347Isrobot Mona LisaBiobot Surgical Pte., Ltd.2011—
+2K130944Isr'obot Mona LisaBiobot Surgical Pte., Ltd.2013—
+3K203659iSR'obot Mona Lisa 1.0Biobot Surgical Pte., Ltd.2021—
+4K213411iSR’obot Mona Lisa 2.0Biobot Surgical Pte., Ltd.2021—
+5K232320iSR`obot Mona Lisa 2.0Biobot Surgical Pte., Ltd.2023—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201110
201310
202120
202310
FIG. 1 — Lineage of K041639, 1987–2023Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 IYO? 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 IYO device

  1. #1 K243937 Accuro 3Sscore 20.5 · 18 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K864807Teknar Proscan (TM)
Summary page 1
…ce for the ultrasound probe and system is: Carolina Medical Proscan® and Proscarn® Plus Umrlogical Ultrasound Imaging systems (Teknar K(864807) 9. Device Description: The TargetScan Tm Transrectal Ultrasound system isintended for diagnostic prostate…
Teknar, Inc.1987—

Also cleared against K864807: 4 other devices →

What descends from it? (5)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K111347Isrobot Mona LisaBiobot Surgical Pte., Ltd.20114

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 no recall.
  • Of its descendants, K111347 (Biobot Surgical Pte., Ltd., 2011) has gone furthest, with 4 descendants of its own.
  • 4 other devices also cite its predicate K864807.

How does its category compare?

All IYO devices

IYO System, Imaging, Pulsed Echo, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · IYO

7in 2025

2007: 202008: 142009: 132010: 152011: 112012: 152013: 172014: 142015: 192016: 102017: 192018: 142019: 132020: 112021: 152022: 52023: 112024: 102025: 72026 (partial year): 10
2007high 20 (2007) · low 5 (2022)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · IYO

171in 2025

2007: 17 days median2008: 36 days median2009: 79 days median2010: 113 days median2011: 69 days median2012: 68 days median2013: 50 days median2014: 63 days median2015: 46 days median2016: 36 days median2017: 72 days median2018: 56 days median2019: 59 days median2020: 57 days median2021: 64 days median2022: 190 days median2023: 177 days median2024: 220 days median2025: 171 days median2026 (partial year): 139 days median
2007high 220 (2024) · low 17 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · IYO

1in 2022

2007: 42008: 52009: 92010: 82012: 22013: 32014: 22015: 12018: 12019: 12021: 112022: 12026 (partial year): 1
2007high 11 (2021) · low 0 (2011)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · IYO

485in 2025

2007: 392008: 202009: 272010: 202011: 582012: 782013: 4362014: 3042015: 2682016: 2542017: 2382018: 3682019: 5372020: 4982021: 6172022: 5112023: 5272024: 6402025: 485
2007high 640 (2024) · low 20 (2008)2025

MAUDE reports naming product code IYO, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20072017439
20081436520
20091379927
201015113820
20111169058
20121568278
201317503436
201414632304
201519461268
201610360254
201719720238
201814561368
201913591537
202011570498
2021156411617
202251901511
2023111770527
2024102200640
202571710485
2026101391—

What is it indicated for?

This Ultrasound imaging system is intended for transrectal diagnostic imaging of the prostate gland. This imaging can be used to guide other procedures such as biopsy of the prostate.

This system is intended to be used with adult patients.

This system is intended for use by medical professionals in a physician office or hospital environment.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K041639: Targetscn Transrectal Ultrasound System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K041639

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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