510(k) Report

510(k) · Cleared

Recalled · Class I · 2019

Hamilton-G5

K131774510(k) TraditionalCleared Oct 9, 2013114-day reviewClass II21 CFR 868.5895Recalls 4 (2 Class I)

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

Hamilton Medical AG · CBK Ventilator, Continuous, Facility Use

Cleared on Oct 9, 2013 as substantially equivalent to K103803 (Hamilton Medical AG, 2011) and 1 other predicate after a 114-day review. Its family tree reaches back 12 generations to 1991. 13 of the 107 devices in its family, counting itself, have a Class I recall. 10 later devices descend from it. It has been recalled 4 times, including 2 Class I recalls.

Decided
Oct 9, 2013
Review
114 days
Class
Class II
Product code
CBK
Recalls
4 (2 Class I)
Predicates
2

Its longest line of descent runs back 12 generations to K902859 (1991). 96 ancestors in all, the oldest K791045 (1979). 10 later devices descend from it, 3 citing it directly. 13 of the 107 devices in this family, counting this one, have a Class I recall.

Other ancestors, by year clearedDescendants, by year cleared 2008: 4 other ancestors2010: 2 other ancestors2004: 7 other ancestors, 1 with a Class I recall12002: 4 other ancestors1998: 11 other ancestors, 3 with a Class I recall32006: 3 other ancestors2005: 3 other ancestors1995: 5 other ancestors1994: 5 other ancestors1991: 5 other ancestors1990: 6 other ancestors1979: 1 other ancestor2001: 5 other ancestors2000: 3 other ancestors, 1 with a Class I recall11999: 6 other ancestors1996: 3 other ancestors2003: 4 other ancestors, 1 with a Class I recall11997: 3 other ancestors1992: 2 other ancestors1993: 1 other ancestor1988: 1 other ancestor2019: 2 descendants cleared, 1 with a Class I recall12017: 1 descendant cleared2015: 1 descendant cleared2016: 1 descendant cleared, 1 with a Class I recall12021: 1 descendant cleared, 1 with a Class I recall12020: 2 descendants cleared, 1 with a Class I recall12024: 1 descendant cleared2026: 1 descendant clearedReference device: K100428 · Masimo Rainbow Set Radical 7R Pulse CO-Oximeter · Masimo Corporation · 2010Reference device: K974292 · Nihon Kohden TL-101T, TL-120T and TL-121T SPO2 Probes and Accessories · Nihon Kohden America, Inc. · 1998Reference device: K011918 · Nihon Kohden BSM-2300A Series Bedside Monitor and Accessories, Model BSM-2300A Series · Nihon Kohden America, Inc. · 2001Reference device: K032749 · Bedside Monitor, Model Opv-1500 · Nihon Kohden America, Inc. · 2003Reference device: K043517 · Transmitter, ZS-940PA Series · Nihon Kohden America, Inc. · 2005K902859 · Servo Ventilator 300 · Siemens Life Support Systems · 1991 · recalledK960010 · Servo Ventilator 300 Computer Interface · Siemens Elema AB · 1996K970839 · Servo Ventilator 300A · Siemens Elema AB · 1997 · recalledK992788 · Bear Cub 750 PSV · Bear Medical Systems, Inc. · 1999K013642 · AVEA · Bird Products Corp. · 2002 · Class I recallK032451 · Bird Tbird Vela Ventilator · Bird Products Corp. · 2004 · recalled×3: 3 generations cleared close together, K052554 (2005), K053270 (2006), K061627 (2006) K063404 · Servo-I Ventilator System, Models 64, 87 and 800 · Maquet Critical Care AB · 2007K081842 · Engstrom Carestation, Engstrom Pro · Datex-Ohmeda, Inc. · 2008K103803 · Hamilton-G5 · Hamilton Medical AG · 2011 · Class I recall19801990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor2 generations back: 7 other ancestors3 generations back: 13 other ancestors, 1 with a Class I recall14 generations back: 15 other ancestors, 1 with a Class I recall15 generations back: 20 other ancestors, 2 with a Class I recall26 generations back: 9 other ancestors, 2 with a Class I recall27 generations back: 11 other ancestors8 generations back: 5 other ancestors9 generations back: 2 other ancestors10 generations back: 1 other ancestor 1 generation forward: 3 descendants2 generations forward: 5 descendants, 4 with a Class I recall43 generations forward: 2 descendants K103803 · Hamilton-G5 · Hamilton Medical AG · 2011 · Class I recallK081842 · Engstrom Carestation, Engstrom Pro · Datex-Ohmeda, Inc. · 2008K063404 · Servo-I Ventilator System, Models 64, 87 and 800 · Maquet Critical Care AB · 2007K061627 · Modification to I Vent 201 · Versamed Medical Systems, Inc. · 2006K053270 · IVENT 201 · Versamed Medical Systems, Inc. · 2006K052554 · Modification to: Ivent 201 Portable Ventilator · Versamed Medical Systems, Inc. · 2005K032451 · Bird Tbird Vela Ventilator · Bird Products Corp. · 2004 · recalledK013642 · AVEA · Bird Products Corp. · 2002 · Class I recallK992788 · Bear Cub 750 PSV · Bear Medical Systems, Inc. · 1999K970839 · Servo Ventilator 300A · Siemens Elema AB · 1997 · recalledK960010 · Servo Ventilator 300 Computer Interface · Siemens Elema AB · 1996K902859 · Servo Ventilator 300 · Siemens Life Support Systems · 1991 · recalled−10−50
  1. Root · 12 generations backK902859 Servo Ventilator 300Siemens Life Support Systems · 1991 · Recalled
  2. 8 generations between
  3. 3 generations backK063404 Servo-I Ventilator System, Models 64, 87 and 800Maquet Critical Care AB · 2007
  4. 2 generations backK081842 Engstrom Carestation, Engstrom ProDatex-Ohmeda, Inc. · 2008
  5. 1 generation backK103803 Hamilton-G5Hamilton Medical AG · 2011 · Recalled (Class I)
  6. This deviceK131774 Hamilton-G5Hamilton Medical AG · 2013
  7. Descendant · cites it directly · 3 of its ownK161450 Hamilton-C3Hamilton Medical AG · 2017 · Recalled
  8. Descendant · cites it directly · 2 of its ownK180295 Hamilton-G5Hamiton Medical AG · 2019
  9. Descendant · cites it directly · 2 of its ownK140939 Hamilton-T1,Hamilton-C1Hamilton Medical AG · 2015 · Recalled
  10. Descendant · 2 generations on · 1 of its ownK201658 Hamilton-C6Hamilton Medical AG · 2020 · Recalled (Class I)
  11. Descendant · 2 generations on · 1 of its ownK193228 Hamilton-G5Hamilton Medical AG · 2020
Show all 12 generations
  1. Root · 12 generations backK902859 Servo Ventilator 300Siemens Life Support Systems · 1991 · Recalled
  2. 11 generations backK960010 Servo Ventilator 300 Computer InterfaceSiemens Elema AB · 1996
  3. 10 generations backK970839 Servo Ventilator 300ASiemens Elema AB · 1997 · Recalled
  4. 9 generations backK992788 Bear Cub 750 PSVBear Medical Systems, Inc. · 1999
  5. 8 generations backK013642 AVEABird Products Corp. · 2002 · Recalled (Class I)
  6. 7 generations backK032451 Bird Tbird Vela VentilatorBird Products Corp. · 2004 · Recalled
  7. 6 generations backK052554 Modification to: Ivent 201 Portable VentilatorVersamed Medical Systems, Inc. · 2005
  8. 5 generations backK053270 IVENT 201Versamed Medical Systems, Inc. · 2006
  9. 4 generations backK061627 Modification to I Vent 201Versamed Medical Systems, Inc. · 2006
  10. 3 generations backK063404 Servo-I Ventilator System, Models 64, 87 and 800Maquet Critical Care AB · 2007
  11. 2 generations backK081842 Engstrom Carestation, Engstrom ProDatex-Ohmeda, Inc. · 2008
  12. 1 generation backK103803 Hamilton-G5Hamilton Medical AG · 2011 · Recalled (Class I)
  13. This deviceK131774 Hamilton-G5Hamilton Medical AG · 2013

Showing 5 of 10 descendants. See all descendants

Descendants cleared per year

2015: 12016: 12017: 12019: 22020: 22021: 12024: 12026: 1
2015high 2 (2019) · low 0 (2018)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 10 · See all
  • K161450Hamilton-C3Hamilton Medical AG · 2017 · cites it directly3descendants
  • K180295Hamilton-G5Hamiton Medical AG · 2019 · cites it directly2descendants
  • K140939Hamilton-T1,Hamilton-C1Hamilton Medical AG · 2015 · cites it directly2descendants
  • K201658Hamilton-C6Hamilton Medical AG · 2020 · 2 generations on1descendant
  • K193228Hamilton-G5Hamilton Medical AG · 2020 · 2 generations on1descendant
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−12K902859Servo Ventilator 300Siemens Life Support Systems19913
−11K960010Servo Ventilator 300 Computer InterfaceSiemens Elema AB1996—
−10K970839Servo Ventilator 300ASiemens Elema AB19974
−9K992788Bear Cub 750 PSVBear Medical Systems, Inc.1999—
−8K013642AVEABird Products Corp.2002Class I
−7K032451Bird Tbird Vela VentilatorBird Products Corp.20041
−6K052554Modification to: Ivent 201 Portable VentilatorVersamed Medical Systems, Inc.2005—
−5K053270IVENT 201Versamed Medical Systems, Inc.2006—
−4K061627Modification to I Vent 201Versamed Medical Systems, Inc.2006—
−3K063404Servo-I Ventilator System, Models 64, 87 and 800Maquet Critical Care AB2007—
−2K081842Engstrom Carestation, Engstrom ProDatex-Ohmeda, Inc.2008—
−1K103803Hamilton-G5Hamilton Medical AG2011Class I
0 (this device)K131774Hamilton-G5Hamilton Medical AG2013—
+1K161450Hamilton-C3Hamilton Medical AG20172
+1K180295Hamilton-G5Hamiton Medical AG2019—
+1K140939Hamilton-T1,Hamilton-C1Hamilton Medical AG20151
+2K201658Hamilton-C6Hamilton Medical AG2020Class I
+2K193228Hamilton-G5Hamilton Medical AG2020—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197910
198810
199060
199150
199220
199310
199450
199550
199630
199730
1998113
199960
200031
200150
200240
200341
200471
200530
200630
200840
201020

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201510
201611
201710
201921
202021
202111
202410
202610
FIG. 1 — Lineage of K131774, 1991–2026Source: 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.

13 devices in this family have a Class I recall. 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 CBK device

  1. #1 K252663 Inbentus Versatilescore 16.0 · 17 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? (2)

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
*K103803Hamilton-G5
Summary page 1
…11Oximeter (DQA) REGULATION NUMBER & 21 CFR 868.5895 (C6K) PRODUCT CODE 21 CFR 870.2700 (DQA) PREDICATE DEVICE: HAMILTON-GS (K103803 (PRIMARY) PREDICATE DEVICE: MAQUET Servo-i (K073179) (SECONDARY) For the Volume-Support mo…
Hamilton Medical AG2011Class I
*K073179Servo-I Ventilator System Model 64 87 800 E4073, Heliox Option, Model 6675585
Summary page 1
…PRODUCT CODE 21 CFR 870.2700 (DQA) PREDICATE DEVICE: HAMILTON-GS (K103803 (PRIMARY) PREDICATE DEVICE: MAQUET Servo-i (K073179) (SECONDARY) For the Volume-Support mode MASIMO RAINBOW SET RADICAL…
Maquet Critical Care AB2008—
†K100428Masimo Rainbow Set Radical 7R Pulse CO-OximeterMasimo Corporation2010—
†K974292Nihon Kohden TL-101T, TL-120T and TL-121T SPO2 Probes and AccessoriesNihon Kohden America, Inc.1998—
†K011918Nihon Kohden BSM-2300A Series Bedside Monitor and Accessories, Model BSM-2300A SeriesNihon Kohden America, Inc.2001—
†K032749Bedside Monitor, Model Opv-1500Nihon Kohden America, Inc.2003—
†K043517Transmitter, ZS-940PA SeriesNihon Kohden America, Inc.2005—

Also cleared against K103803: 2 other devices →

What descends from it? (10)

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

NumberDeviceApplicantDecidedDescendants
K161450Hamilton-C3Hamilton Medical AG20173
K180295Hamilton-G5Hamiton Medical AG20192
K140939Hamilton-T1,Hamilton-C1Hamilton Medical AG20152

Has anything in its family been recalled? (13 Class I)

Recalls of this device

DateClassRecallRoot causeReason
Mar 25, 2019Class IZ-1874-2019Software designNew software version for affected ventilators reduces the probability of the ventilator entering an ambient state, in which the inspiratory channel and expiratory valves are opened, letting the patient breathe room air unassisted. When…
Mar 9, 2016Class IIZ-1624-2016Software designAfter performing the suctioning maneuver, including disconnecting the patient, suctioning , and reconnecting the patient, the preset pattern of ventilation many not continue as expected.
Mar 24, 2015Class IIZ-2057-2015Device DesignCustomer reports that the ventilator display can freeze. Ventilation continues but the information is no longer displayed on the screen and the user can no longer operate the device.
Apr 22, 2014Class IZ-0151-2016Device DesignVentilation and alarms of a HAMILTON-G5 ventilator can be suppressed unintentionally after the activation of a suctioning maneuver by the operator; this situation can occur regardless of the selected patient group (neonatal, pediatric and…

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K103803Hamilton-G5Hamilton Medical AG · 2011 · Direct predicate · ◆ on the line of descent in FIG. 11 Class I recall
  • K041223Modification to Servo-I Ventilator System, Model 64 87 800 E407EMaquet Critical Care AB · 2004 · 3 generations back · ◆ in the 2004 ancestors bar of FIG. 11 Class I recall
  • K013642AVEABird Products Corp. · 2002 · 3 generations back · ◆ on the line of descent in FIG. 113 Class I recalls
  • K970460Nellcor Puritan Bennett, 840 Ventilator System (Model 840)Puritan Bennett Corp. · 1998 · 4 generations back · ◆ in the 1998 ancestors bar of FIG. 11 Class I recall
  • K001646Puritan-Bennett 840 Ventilator System with Neomode OptionPuritan Bennett Corp. · 2000 · 5 generations back · ◆ in the 2000 ancestors bar of FIG. 11 Class I recall
  • K984535Puritan-Bennett 840 Ventilatory System with Bilevel OptionPuritan Bennett Corp. · 1998 · 5 generations back · ◆ in the 1998 ancestors bar of FIG. 11 Class I recall
  • K023366Datex-Ohmeda 7900 Ventilator EnhancementsDatex-Ohmeda, Inc. · 2003 · 6 generations back · ◆ in the 2003 ancestors bar of FIG. 11 Class I recall
  • K981072Esprit VentilatorRespironics, Inc. · 1998 · 6 generations back · ◆ in the 1998 ancestors bar of FIG. 11 Class I recall
  • K181216Hamilton-T1, Hamilton-C1Hamilton Medical AG · 2019 · 2 generations on · ◆ in the 2019 descendants bar of FIG. 15 Class I recalls
  • K153046Hamilton-MR1Hamilton Medical AG · 2016 · 2 generations on · ◆ in the 2016 descendants bar of FIG. 11 Class I recall
  • K201306Hamilton-C3Hamilton Medical AG · 2021 · 2 generations on · ◆ in the 2021 descendants bar of FIG. 11 Class I recall
  • K201658Hamilton-C6Hamilton Medical AG · 2020 · 2 generations on · ◆ in the 2020 descendants bar of FIG. 13 Class I recalls

What does this lineage say?

  • The line of descent spans 22 years and passes through 8 companies; a new generation was cleared every 1.8 years on median.
  • 28 of the 96 ancestors have a recall of any class; 8 have a Class I recall.
  • Of its descendants, K161450 (Hamilton Medical AG, 2017) has gone furthest, with 3 descendants of its own.
  • 2 other devices also cite its predicate K103803.

How does its category compare?

All CBK devices

CBK Ventilator, Continuous, Facility Use: FDA decisions, review times, recalls and adverse event reports over 20 years. 2013, this device’s year, is highlighted.

FDA decisions per year · CBK

4in 2025

2007: 112008: 182009: 122010: 142011: 132012: 172013: 52014: 52015: 72016: 42017: 62018: 42019: 82020: 52021: 62023: 52024: 92025: 42026 (partial year): 3
2007high 18 (2008) · low 0 (2022)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · CBK

163in 2025

2007: 142 days median2008: 115 days median2009: 122 days median2010: 150 days median2011: 192 days median2012: 207 days median2013: 277 days median2014: 439 days median2015: 266 days median2016: 323 days median2017: 280 days median2018: 183 days median2019: 435 days median2020: 176 days median2021: 267 days median2023: 309 days median2024: 203 days median2025: 163 days median2026 (partial year): 235 days median
2007high 439 (2014) · low 115 (2008)2026

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

Recalls per year · CBK

14in 2024

2007: 172008: 232009: 82010: 92011: 122012: 2, 1 Class I2013: 5, 2 Class I2014: 5, 4 Class I2015: 6, 4 Class I2016: 4, 1 Class I2017: 12018: 3, 3 Class I2019: 14, 13 Class I2020: 42021: 21, 19 Class I2022: 8, 4 Class I2023: 4, 3 Class I2024: 14, 14 Class I2026 (partial year): 15, 13 Class I
2007high 23 (2008) · low 0 (2025)2026

Class I (81 since 2007) Class II/III not classified

Adverse event reports per year · CBK

13,991in 2025

2007: 1,5312008: 1,9332009: 1,7662010: 1,7992011: 1,8772012: 5,5092013: 7,9212014: 7,6002015: 11,8762016: 16,0562017: 14,4512018: 9,8492019: 9,1002020: 11,0962021: 13,3222022: 15,9742023: 24,9282024: 20,3362025: 13,991
2007high 24,928 (2023) · low 1,531 (2007)2025

MAUDE reports naming product code CBK, 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
200711142171,531
200818115231,933
20091212281,766
20101415091,799
201113192121,877
2012172072 (1)5,509
201352775 (2)7,921
201454395 (4)7,600
201572666 (4)11,876
201643234 (1)16,056
20176280114,451
201841833 (3)9,849
2019843514 (13)9,100
20205176411,096
2021626721 (19)13,322
20220—8 (4)15,974
202353094 (3)24,928
2024920314 (14)20,336
20254163013,991
2026323515 (13)—

What is it indicated for?

The HAMILTON-G5 ventilator is designed for intensive care ventilation of adult and pediatric patients, and optionally infant and neonatal patients. The device is intended for use in the hospital and institutional environment where health care professionals provide patient care. The HAMILTON-G5 ventilator is intended for use by properly trained personnel under the direct supervision of a licensed physician. The HAMILTON-G5 ventilator may be used for…

Read the full statement (129 words)

The HAMILTON-G5 ventilator is designed for intensive care ventilation of adult and pediatric patients, and optionally infant and neonatal patients. The device is intended for use in the hospital and institutional environment where health care professionals provide patient care. The HAMILTON-G5 ventilator is intended for use by properly trained personnel under the direct supervision of a licensed physician. The HAMILTON-G5 ventilator may be used for transport within a hospital or hospital type facility provided compressed gas is supplied.

The device is not to be used in the presence of flammable anesthetic agents or other ignition sources. The ventilator is not to be used in an environment with magnetic resonance imaging (MRI) equipment. The device is not intended for transportation outside the hospital or for use in the home environment.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K131774: Hamilton-G5.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K131774

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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