510(k) Report

510(k) · Cleared

Cleared

Cyware 4H and Cysart 4H

K221796510(k) TraditionalCleared Dec 30, 2022192-day reviewClass II21 CFR 892.2050

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

Abys Medical · LLZ System, Image Processing, Radiological

Cleared on Dec 30, 2022 as substantially equivalent to K203195 (Synopsys (Northern Europe), Ltd., 2021) and 4 other predicates after a 192-day review. Its family tree reaches back 14 generations to 1991. 1 later device descends from it.

Decided
Dec 30, 2022
Review
192 days
Class
Class II
Product code
LLZ
Recalls
None
Predicates
5

Its longest line of descent runs back 14 generations to K913770 (1991). 168 ancestors in all, the oldest K890348 (1989). 1 later device descends from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2021: 2 other ancestors2018: 1 other ancestor2014: 2 other ancestors2019: 1 other ancestor2017: 2 other ancestors2015: 2 other ancestors2011: 3 other ancestors2008: 3 other ancestors2009: 1 other ancestor2007: 3 other ancestors2006: 6 other ancestors2004: 15 other ancestors2013: 1 other ancestor2005: 4 other ancestors2003: 13 other ancestors2002: 11 other ancestors2001: 19 other ancestors2000: 11 other ancestors1999: 5 other ancestors1998: 9 other ancestors1997: 7 other ancestors1994: 6 other ancestors1993: 5 other ancestors2010: 1 other ancestor1996: 8 other ancestors1995: 6 other ancestors1991: 4 other ancestors1990: 1 other ancestor1989: 2 other ancestors2025: 1 descendant clearedK913770 · Advantage V.S. CT/MR Rad Diagnostic Workstation · General Electric Co. · 1991K960613 · GE Advantage Windows Review Workstation · GE Medical Systems · 1996K020483 · Advantage Workstation 4.1 · GE Medical Systems · 2002 · recalledK023003 · Imagechecker-CT Workstation · R2 Technology, Inc. · 2002×2: 2 generations cleared close together, K032748 (2003), K040305 (2004) K043333 · VITREA2, Version 3.7 Medical Image Processing System · Vital Images, Inc. · 2004 · recalledK052632 · VITREA2 Version 3.8 Medical Image Processing Software · Vital Images, Inc. · 2005 · recalledK061624 · Vitrea, Version 3.9 · Vital Images, Inc. · 2006 · recalledK071331 · Vitrea Version 4.0 · Vital Images, Inc. · 2007 · recalledK072821 · Vitrea 4DCT · Vital Images, Inc. · 2008 · recalledK132853 · Novapacs · Novarad Corp. · 2014 · recalledK160371 · NovaPACS · Novarad Corporation · 2016K171754 · NovaPACS · Novarad Corporation · 2017 · recalled1990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 4 other ancestors2 generations back: 7 other ancestors3 generations back: 7 other ancestors4 generations back: 17 other ancestors5 generations back: 24 other ancestors6 generations back: 29 other ancestors7 generations back: 26 other ancestors8 generations back: 21 other ancestors9 generations back: 12 other ancestors10 generations back: 4 other ancestors11 generations back: 2 other ancestors12 generations back: 1 other ancestor 1 generation forward: 1 descendant K171754 · NovaPACS · Novarad Corporation · 2017 · recalledK160371 · NovaPACS · Novarad Corporation · 2016K132853 · Novapacs · Novarad Corp. · 2014 · recalledK072821 · Vitrea 4DCT · Vital Images, Inc. · 2008 · recalledK071331 · Vitrea Version 4.0 · Vital Images, Inc. · 2007 · recalledK061624 · Vitrea, Version 3.9 · Vital Images, Inc. · 2006 · recalledK052632 · VITREA2 Version 3.8 Medical Image Processing Software · Vital Images, Inc. · 2005 · recalledK043333 · VITREA2, Version 3.7 Medical Image Processing System · Vital Images, Inc. · 2004 · recalledK040305 · VITREA2 Version 3.5 · Vital Images, Inc. · 2004K032748 · VITREA2, Version 3.4 Medical Image Processing Software · Vital Images, Inc. · 2003 · recalledK023003 · Imagechecker-CT Workstation · R2 Technology, Inc. · 2002K020483 · Advantage Workstation 4.1 · GE Medical Systems · 2002 · recalledK960613 · GE Advantage Windows Review Workstation · GE Medical Systems · 1996K913770 · Advantage V.S. CT/MR Rad Diagnostic Workstation · General Electric Co. · 1991−10−50
  1. Root · 14 generations backK913770 Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co. · 1991
  2. 10 generations between
  3. 3 generations backK132853 NovapacsNovarad Corp. · 2014 · Recalled
  4. 2 generations backK160371 NovaPACSNovarad Corporation · 2016
  5. 1 generation backK171754 NovaPACSNovarad Corporation · 2017 · Recalled
  6. This deviceK221796 Cyware 4H and Cysart 4HAbys Medical · 2022
  7. Descendant · cites it directly · 0 of its ownK243069 Lumys (V1)Intradys · 2025
Show all 14 generations
  1. Root · 14 generations backK913770 Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co. · 1991
  2. 13 generations backK960613 GE Advantage Windows Review WorkstationGE Medical Systems · 1996
  3. 12 generations backK020483 Advantage Workstation 4.1GE Medical Systems · 2002 · Recalled
  4. 11 generations backK023003 Imagechecker-CT WorkstationR2 Technology, Inc. · 2002
  5. 10 generations backK032748 VITREA2, Version 3.4 Medical Image Processing SoftwareVital Images, Inc. · 2003 · Recalled
  6. 9 generations backK040305 VITREA2 Version 3.5Vital Images, Inc. · 2004
  7. 8 generations backK043333 VITREA2, Version 3.7 Medical Image Processing SystemVital Images, Inc. · 2004 · Recalled
  8. 7 generations backK052632 VITREA2 Version 3.8 Medical Image Processing SoftwareVital Images, Inc. · 2005 · Recalled
  9. 6 generations backK061624 Vitrea, Version 3.9Vital Images, Inc. · 2006 · Recalled
  10. 5 generations backK071331 Vitrea Version 4.0Vital Images, Inc. · 2007 · Recalled
  11. 4 generations backK072821 Vitrea 4DCTVital Images, Inc. · 2008 · Recalled
  12. 3 generations backK132853 NovapacsNovarad Corp. · 2014 · Recalled
  13. 2 generations backK160371 NovaPACSNovarad Corporation · 2016
  14. 1 generation backK171754 NovaPACSNovarad Corporation · 2017 · Recalled
  15. This deviceK221796 Cyware 4H and Cysart 4HAbys Medical · 2022

Most influential descendants

Showing 1 of 1 · See all
  • K243069Lumys (V1)Intradys · 2025 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−14K913770Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co.1991—
−13K960613GE Advantage Windows Review WorkstationGE Medical Systems1996—
−12K020483Advantage Workstation 4.1GE Medical Systems20022
−11K023003Imagechecker-CT WorkstationR2 Technology, Inc.2002—
−10K032748VITREA2, Version 3.4 Medical Image Processing SoftwareVital Images, Inc.20032
−9K040305VITREA2 Version 3.5Vital Images, Inc.2004—
−8K043333VITREA2, Version 3.7 Medical Image Processing SystemVital Images, Inc.20041
−7K052632VITREA2 Version 3.8 Medical Image Processing SoftwareVital Images, Inc.20052
−6K061624Vitrea, Version 3.9Vital Images, Inc.20061
−5K071331Vitrea Version 4.0Vital Images, Inc.20071
−4K072821Vitrea 4DCTVital Images, Inc.20081
−3K132853NovapacsNovarad Corp.20142
−2K160371NovaPACSNovarad Corporation2016—
−1K171754NovaPACSNovarad Corporation20171
0 (this device)K221796Cyware 4H and Cysart 4HAbys Medical2022—
+1K243069Lumys (V1)Intradys2025—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198920
199010
199140
199350
199460
199560
199680
199770
199890
199950
2000110
2001190
2002110
2003130
2004150
200540
200660
200730
200830
200910
201010
201130
201310
201420
201520
201720
201810
201910
202120

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202510
FIG. 1 — Lineage of K221796, 1991–2025Source: 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 LLZ? 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 LLZ device

  1. #1 K230955 syngo Application Softwarescore 21.5 · 11 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (5)

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
*K203195Simpleware ScanIP Medical
Summary page 5
…Page 1 on 13 4. Legally Marketed Predicate Devices Primary predicate device: • Simpleware ScanIP Medical (Synopsys (Northern Europe) Ltd, K203195) Additional predicate devices: • Surgimap 2.0 (Nemaris, Inc, K141669) • NovaPACS (Novarad Corporation, K171754)…
Synopsys (Northern Europe), Ltd.2021—
*K141669Surgimap
Summary page 5
…ry predicate device: • Simpleware ScanIP Medical (Synopsys (Northern Europe) Ltd, K203195) Additional predicate devices: • Surgimap 2.0 (Nemaris, Inc, K141669) • NovaPACS (Novarad Corporation, K171754) • HOLOSCOPE-I (Real View Imaging Ltd, K210072) • OpenSight (Novar…
Nemaris, Inc.2014—
*K171754NovaPACS
Summary page 5
…Medical (Synopsys (Northern Europe) Ltd, K203195) Additional predicate devices: • Surgimap 2.0 (Nemaris, Inc, K141669) • NovaPACS (Novarad Corporation, K171754) • HOLOSCOPE-I (Real View Imaging Ltd, K210072) • OpenSight (Novarad Corporation, K172418) One Urgent Medical De…
Novarad Corporation20171
*K210072HOLOSCOPE-i
Summary page 5
…dditional predicate devices: • Surgimap 2.0 (Nemaris, Inc, K141669) • NovaPACS (Novarad Corporation, K171754) • HOLOSCOPE-I (Real View Imaging Ltd, K210072) • OpenSight (Novarad Corporation, K172418) One Urgent Medical Device Correction Notice has been published on 09/24/201…
Real View Imaging, Ltd.2021—
*K172418OpenSight
Summary page 5
…0 (Nemaris, Inc, K141669) • NovaPACS (Novarad Corporation, K171754) • HOLOSCOPE-I (Real View Imaging Ltd, K210072) • OpenSight (Novarad Corporation, K172418) One Urgent Medical Device Correction Notice has been published on 09/24/2019 for the NovaPACS (Novarad Corporation, K171754)…
Novarad Corporation2018—

Also cleared against K203195: 1 other device →

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K243069Lumys (V1)Intradys20250

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?

  • The line of descent spans 31 years and passes through 7 companies; a new generation was cleared every 11 months on median.
  • 46 of the 168 ancestors have a recall of any class.
  • Of its descendants, K243069 (Intradys, 2025) has gone furthest, with 0 descendants of its own.
  • 1 other device also cites its predicate K203195.

How does its category compare?

All LLZ devices

LLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2022, this device’s year, is highlighted.

FDA decisions per year · LLZ

58in 2025

2007: 762008: 942009: 702010: 512011: 1062012: 822013: 952014: 782015: 642016: 822017: 782018: 1042019: 742020: 812021: 832022: 652023: 872024: 622025: 582026 (partial year): 45
2007high 106 (2011) · low 51 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LLZ

173in 2025

2007: 36 days median2008: 52 days median2009: 62 days median2010: 98 days median2011: 79 days median2012: 87 days median2013: 84 days median2014: 89 days median2015: 90 days median2016: 90 days median2017: 107 days median2018: 105 days median2019: 107 days median2020: 115 days median2021: 116 days median2022: 137 days median2023: 157 days median2024: 131 days median2025: 173 days median2026 (partial year): 110 days median
2007high 173 (2025) · low 36 (2007)2026

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

Recalls per year · LLZ

11in 2025

2007: 202008: 322009: 212010: 172011: 302012: 122013: 642014: 62015: 162016: 122017: 52018: 72019: 22020: 62021: 32022: 42023: 82024: 62025: 112026 (partial year): 14
2007high 64 (2013) · low 2 (2019)2026

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

Adverse event reports per year · LLZ

116in 2025

2007: 1522008: 1542009: 1452010: 1452011: 4542012: 2662013: 1,1302014: 15,6312015: 2112016: 2902017: 1042018: 722019: 882020: 822021: 702022: 282023: 262024: 422025: 116
2007high 15,631 (2014) · low 26 (2023)2025

MAUDE reports naming product code LLZ, 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
2007763620152
2008945232154
2009706221145
2010519817145
20111067930454
2012828712266
20139584641,130
20147889615,631
2015649016211
2016829012290
2017781075104
2018104105772
201974107288
202081115682
202183116370
202265137428
202387157826
202462131642
20255817311116
20264511014—

What is it indicated for?

Abys® Medical Cysware® 4H is intended for use as a software interface and image segmentation system for the transfer of medical imaging information to an output file. Abys® Medical Cysware® 4H is also intended as pre-operative software for surgical planning assistance. Abys® Medical Cysware® 4H is intended to be used by clinician with appropriate clinical judgement. Abys® Medical Cysart® 4H is a medical display intended for 3D image visualization and…

Read the full statement (178 words)

Abys® Medical Cysware® 4H is intended for use as a software interface and image segmentation system for the transfer of medical imaging information to an output file. Abys® Medical Cysware® 4H is also intended as pre-operative software for surgical planning assistance. Abys® Medical Cysware® 4H is intended to be used by clinician with appropriate clinical judgement.

Abys® Medical Cysart® 4H is a medical display intended for 3D image visualization and image interaction. The stereoscopic 3D images are generated from 3D volumetric data acquired from CT scan source. The device is intended to provide visual information to be used by clinician with appropriate clinical judgement for analysis of surgical options, and the intraoperative display of the images. Abys® Medical Cysart® 4H is intended to be used as an adjunct to the interpretation of images performed using diagnostic imaging systems and is not intended for primary diagnosis. Abys® Medical Cysart® 4H is intended to be used as a reference display for consultation to assist the clinician with appropriate clinical judgement who is responsible for making all final patient management decisions.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K221796: Cyware 4H and Cysart 4H.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K221796

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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