510(k) Report

510(k) · Cleared

Cleared

Fore-Sight, Model MC-2000 Series (MC 2000, MC2010, MC-2020,MC2030)

K091452510(k) TraditionalCleared Aug 21, 200995-day reviewClass II21 CFR 870.2700

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

Cas Medical Systems, Inc. · MUD Oximeter, Tissue Saturation

Cleared on Aug 21, 2009 as substantially equivalent to K061960 (Cas Medical Systems, Inc., 2006) and 8 other predicates after a 95-day review. Its family tree reaches back 9 generations to 1993. 57 later devices descend from it.

Decided
Aug 21, 2009
Review
95 days
Class
Class II
Product code
MUD
Recalls
None
Predicates
9

Its longest line of descent runs back 9 generations to K931154 (1993). 38 ancestors in all, the oldest K850978 (1985). 57 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2009: 1 other ancestor2008: 2 other ancestors2005: 1 other ancestor2000: 2 other ancestors1996: 2 other ancestors2003: 1 other ancestor2002: 3 other ancestors1999: 2 other ancestors1994: 1 other ancestor1988: 1 other ancestor1986: 1 other ancestor2004: 1 other ancestor2001: 1 other ancestor1998: 3 other ancestors1995: 2 other ancestors1992: 1 other ancestor1990: 1 other ancestor1993: 1 other ancestor1985: 1 other ancestor1997: 1 other ancestor2010: 2 descendants cleared2012: 2 descendants cleared2019: 4 descendants cleared2015: 3 descendants cleared2014: 2 descendants cleared2013: 1 descendant cleared2016: 2 descendants cleared2020: 3 descendants cleared2022: 6 descendants cleared2018: 1 descendant cleared2021: 7 descendants cleared2017: 1 descendant cleared2024: 6 descendants cleared2023: 8 descendants cleared2025: 6 descendants cleared2026: 3 descendants clearedK931154 · Evis 200 System · Olympus Corp. · 1993K963033 · BF 240/P240/IT240 Bronchovideoscope & Accessories · Olympus America, Inc. · 1996 · recalledK981543 · Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories and Ancillary Equipment · The Olympus Optical Co. · 1998 · recalledK002231 · LF-DP Gastrointestinal and Sigmoid Fiberscope, Accessories and Ancillary Equipment · Olympus Optical Co., Ltd. · 2001K011869 · Xenf-DP Rhino-Laryngofiberscope, Its Accessories and Ancillary Equipment · The Olympus Optical Co. · 2001K040684 · T-Stat Microvascular Tissue Oximeter, Model 303 · Spectros Corporation · 2004K051257 · Adult Cerebral Oximeter, Model 2040 · Cas Medical Systems, Inc. · 2005K061960 · Fore-Sight Cerebral Oximeter Monitor, Model 2040 · Cas Medical Systems, Inc. · 2006K083892 · Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030) · Cas Medical Systems, Inc. · 20091990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 6 other ancestors2 generations back: 7 other ancestors3 generations back: 10 other ancestors4 generations back: 5 other ancestors5 generations back: 1 other ancestor 1 generation forward: 2 descendants2 generations forward: 7 descendants3 generations forward: 5 descendants4 generations forward: 7 descendants5 generations forward: 6 descendants6 generations forward: 11 descendants7 generations forward: 13 descendants8 generations forward: 6 descendants K083892 · Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030) · Cas Medical Systems, Inc. · 2009K061960 · Fore-Sight Cerebral Oximeter Monitor, Model 2040 · Cas Medical Systems, Inc. · 2006K051257 · Adult Cerebral Oximeter, Model 2040 · Cas Medical Systems, Inc. · 2005K040684 · T-Stat Microvascular Tissue Oximeter, Model 303 · Spectros Corporation · 2004K011869 · Xenf-DP Rhino-Laryngofiberscope, Its Accessories and Ancillary Equipment · The Olympus Optical Co. · 2001K002231 · LF-DP Gastrointestinal and Sigmoid Fiberscope, Accessories and Ancillary Equipment · Olympus Optical Co., Ltd. · 2001K981543 · Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories and Ancillary Equipment · The Olympus Optical Co. · 1998 · recalledK963033 · BF 240/P240/IT240 Bronchovideoscope & Accessories · Olympus America, Inc. · 1996 · recalledK931154 · Evis 200 System · Olympus Corp. · 1993−50+5
  1. Root · 9 generations backK931154 Evis 200 SystemOlympus Corp. · 1993
  2. 5 generations between
  3. 3 generations backK051257 Adult Cerebral Oximeter, Model 2040Cas Medical Systems, Inc. · 2005
  4. 2 generations backK061960 Fore-Sight Cerebral Oximeter Monitor, Model 2040Cas Medical Systems, Inc. · 2006
  5. 1 generation backK083892 Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030)Cas Medical Systems, Inc. · 2009
  6. This deviceK091452 Fore-Sight, Model MC-2000 Series (MC 2000, MC2010, MC-2020,MC2030)Cas Medical Systems, Inc. · 2009
  7. Descendant · cites it directly · 53 of its ownK094030 Fore-Sight Absolute Cerebral and Somatic Oximeter, MC 2000 Series…Cas Medical Systems, Inc. · 2010
  8. Descendant · cites it directly · 53 of its ownK102715 Regional OximeterNonin Medical, Inc. · 2010
  9. Descendant · 2 generations on · 47 of its ownK112820 Fore-Sight Absolute Tissue OximeterCas Medical Systems, Inc. · 2012
  10. Descendant · 2 generations on · 44 of its ownK133879 Fore-Sight Elite Absolute Tissue OximeterCas Medical Systems, Inc. · 2014
  11. Descendant · 2 generations on · 42 of its ownK113215 Model 7600 Regional Oximeter System with Equanox TechnologyNonin Medical, Inc. · 2012
Show all 9 generations
  1. Root · 9 generations backK931154 Evis 200 SystemOlympus Corp. · 1993
  2. 8 generations backK963033 BF 240/P240/IT240 Bronchovideoscope & AccessoriesOlympus America, Inc. · 1996 · Recalled
  3. 7 generations backK981543 Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories…The Olympus Optical Co. · 1998 · Recalled
  4. 6 generations backK002231 LF-DP Gastrointestinal and Sigmoid Fiberscope, Accessories and…Olympus Optical Co., Ltd. · 2001
  5. 5 generations backK011869 Xenf-DP Rhino-Laryngofiberscope, Its Accessories and Ancillary…The Olympus Optical Co. · 2001
  6. 4 generations backK040684 T-Stat Microvascular Tissue Oximeter, Model 303Spectros Corporation · 2004
  7. 3 generations backK051257 Adult Cerebral Oximeter, Model 2040Cas Medical Systems, Inc. · 2005
  8. 2 generations backK061960 Fore-Sight Cerebral Oximeter Monitor, Model 2040Cas Medical Systems, Inc. · 2006
  9. 1 generation backK083892 Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030)Cas Medical Systems, Inc. · 2009
  10. This deviceK091452 Fore-Sight, Model MC-2000 Series (MC 2000, MC2010, MC-2020,MC2030)Cas Medical Systems, Inc. · 2009

Showing 5 of 57 descendants. See all descendants

Descendants cleared per year

2010: 22012: 22013: 12014: 22015: 32016: 22017: 12018: 12019: 42020: 32021: 72022: 62023: 82024: 62025: 62026: 3
2010high 8 (2023) · low 0 (2011)2026

Most influential descendants

Showing 5 of 57 · See all
  • K094030Fore-Sight Absolute Cerebral and Somatic Oximeter, MC 2000 Series, Models MC2000…Cas Medical Systems, Inc. · 2010 · cites it directly53descendants
  • K102715Regional OximeterNonin Medical, Inc. · 2010 · cites it directly53descendants
  • K112820Fore-Sight Absolute Tissue OximeterCas Medical Systems, Inc. · 2012 · 2 generations on47descendants
  • K133879Fore-Sight Elite Absolute Tissue OximeterCas Medical Systems, Inc. · 2014 · 2 generations on44descendants
  • K113215Model 7600 Regional Oximeter System with Equanox TechnologyNonin Medical, Inc. · 2012 · 2 generations on42descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−9K931154Evis 200 SystemOlympus Corp.1993—
−8K963033BF 240/P240/IT240 Bronchovideoscope & AccessoriesOlympus America, Inc.19966
−7K981543Olympus LF-TP and LF-DP Tracheal Intubation Fiberscopes, Accessories and…The Olympus Optical Co.19985
−6K002231LF-DP Gastrointestinal and Sigmoid Fiberscope, Accessories and Ancillary…Olympus Optical Co., Ltd.2001—
−5K011869Xenf-DP Rhino-Laryngofiberscope, Its Accessories and Ancillary EquipmentThe Olympus Optical Co.2001—
−4K040684T-Stat Microvascular Tissue Oximeter, Model 303Spectros Corporation2004—
−3K051257Adult Cerebral Oximeter, Model 2040Cas Medical Systems, Inc.2005—
−2K061960Fore-Sight Cerebral Oximeter Monitor, Model 2040Cas Medical Systems, Inc.2006—
−1K083892Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030)Cas Medical Systems, Inc.2009—
0 (this device)K091452Fore-Sight, Model MC-2000 Series (MC 2000, MC2010, MC-2020,MC2030)Cas Medical Systems, Inc.2009—
+1K094030Fore-Sight Absolute Cerebral and Somatic Oximeter, MC 2000 Series, Models…Cas Medical Systems, Inc.2010—
+1K102715Regional OximeterNonin Medical, Inc.2010—
+2K112820Fore-Sight Absolute Tissue OximeterCas Medical Systems, Inc.2012—
+2K133879Fore-Sight Elite Absolute Tissue OximeterCas Medical Systems, Inc.2014—
+2K113215Model 7600 Regional Oximeter System with Equanox TechnologyNonin Medical, Inc.2012—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198510
198610
198810
199010
199210
199310
199410
199520
199620
199710
199830
199920
200020
200110
200230
200310
200410
200510
200820
200910

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201020
201220
201310
201420
201530
201620
201710
201810
201940
202030
202170
202260
202380
202460
202560
202630
FIG. 1 — Lineage of K091452, 1993–2026Source: 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 MUD? 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 MUD device

  1. #1 K223651 Cerebral Adaptive Index (CAI) Algorithmscore 19.8 · 29 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? (9)

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
*K061960Fore-Sight Cerebral Oximeter Monitor, Model 2040
Summary page 2
…-SIGHT® Cerebral Oximeter Monitor, Model MC-2000 is equivalent to the following devices: C GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274…
Cas Medical Systems, Inc.2006—
*K073036Fore-Sight, MC-2000 Series
Summary page 2
…rebral Oximeter Monitor, Model MC-2000 is equivalent to the following devices: C GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769…
Cas Medical Systems, Inc.2008—
*K083892Fore-Sight, Model MC-2000 Series (MC-2000, MC-2010, MC2020, MC2030)
Summary page 2
…meter Monitor, Model MC-2000 is equivalent to the following devices: C GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327…
Cas Medical Systems, Inc.2009—
*K001842Adult/Pediatric Cerebral Oximeter, Model Invos 5100
Summary page 2
…: C GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040…
Somanetics Corp.2000—
*K960614Somanetics Invos 3100A Cerebral Oximeter (Invos)
Summary page 2
…C GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040684); DE…
Somanetics Corp.1996—
*K051274Invos System
Summary page 2
…GAS Adult Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040684); DESCRIPTION The Cerebral O…
Somanetics Corp.2005—
*K080769Invos Cerebral/Somatic Oximeter System, Model 5100C
Summary page 2
…Cerebral Oximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040684); DESCRIPTION The Cerebral Oximeter Mo…
Somanetics Corp.2008—
*K082327Invos Cerebral/Somatic Oximeter System, Model: 5100C
Summary page 2
…ximeter Model 2000 (K061960 / K073036 / K083892) * Somanetics INVOS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040684); DESCRIPTION The Cerebral Oximeter Monitor meas…
Somanetics Corp.2009—
*K040684T-Stat Microvascular Tissue Oximeter, Model 303
Summary page 2
…OS® 5100C / 3100A Cerebral Oximeter (K001842 / K960614 / K051274 / K080769 / K082327); *° Spectros T-StatTM 303 Microvascular Tissue Oximeter (K040684); DESCRIPTION The Cerebral Oximeter Monitor measures cerebral tissue oxygen saturation allowing the clinician to accurately de…
Spectros Corporation2004—

Also cleared against K061960: 1 other device →

What descends from it? (57)

See all 57

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K094030Fore-Sight Absolute Cerebral and Somatic Oximeter, MC 2000 Series, Models MC2000…Cas Medical Systems, Inc.201053
K102715Regional OximeterNonin Medical, Inc.201053

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 16 years and passes through 6 companies; a new generation was cleared every 1.7 years on median.
  • 7 of the 38 ancestors have a recall of any class.
  • Of its descendants, K094030 (Cas Medical Systems, Inc., 2010) has gone furthest, with 53 descendants of its own.
  • 1 other device also cites its predicate K061960.

How does its category compare?

All MUD devices

MUD Oximeter, Tissue Saturation: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.

FDA decisions per year · MUD

2in 2025

2008: 42009: 42010: 42011: 22012: 62013: 22014: 52015: 32016: 42017: 32018: 32019: 72020: 22021: 22022: 22023: 22024: 52025: 22026 (partial year): 1
2007high 7 (2019) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · MUD

124in 2024

2008: 72 days median2009: 96 days median2010: 59 days median2012: 211 days median2014: 109 days median2015: 107 days median2016: 167 days median2017: 249 days median2018: 128 days median2019: 88 days median2024: 124 days median
2007high 249 (2017) · low 59 (2010)2026

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

Recalls per year · MUD

1in 2023

2009: 12022: 22023: 12026 (partial year): 1
2007high 2 (2022) · low 0 (2007)2026

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

Adverse event reports per year · MUD

131in 2025

2008: 22009: 72010: 12011: 22012: 32013: 82014: 42016: 92017: 242018: 382019: 1072020: 502021: 272022: 522023: 732024: 1402025: 131
2007high 140 (2024) · low 0 (2007)2025

MAUDE reports naming product code MUD, 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
20070—00
200847202
200949617
201045901
20112—02
2012621103
20132—08
2014510904
2015310700
2016416709
20173249024
20183128038
20197880107
20202—050
20212—027
20222—252
20232—173
202451240140
20252—0131
20261—1—

What is it indicated for?

The FORE-SIGHT® Cerebral Oximeter, Model MC-2000 Series is indicated for the continuous noninvasive monitoring of regional hemoglobin oxygen saturation of blood in the brain (SctO2). It is intended for use in any individual at risk for reduced-flow or no-flow ischemic states. When used with FORE-SIGHT large sensors, the FORE-SIGHT MC-2000 Cerebral Oximeter Monitor is indicated for use with adults and children over 40Kg. When used with the FORE-SIGHT…

Read the full statement (111 words)

The FORE-SIGHT® Cerebral Oximeter, Model MC-2000 Series is indicated for the continuous noninvasive monitoring of regional hemoglobin oxygen saturation of blood in the brain (SctO2). It is intended for use in any individual at risk for reduced-flow or no-flow ischemic states.

When used with FORE-SIGHT large sensors, the FORE-SIGHT MC-2000 Cerebral Oximeter Monitor is indicated for use with adults and children over 40Kg. When used with the FORE-SIGHT medium sensors, the FORE-SIGHT MC-2000 Cerebral Oximeter is indicated for use with small adults and children between 4 kg and 80 kg. When used with FORE-SIGHT small sensors the FORE-SIGHT MC-2000 Series Cerebral Oximeter Monitor is indicated for infants and neonates < 8Kg.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K091452: Fore-Sight, Model MC-2000 Series (MC 2000, MC2010, MC-2020,MC2030).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K091452

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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