510(k) Report

510(k) · Cleared

Cleared

RTX3320PSTN Wireless Telehealth Gateway

K041816510(k) TraditionalCleared Jul 19, 200413-day reviewClass II21 CFR 870.2910

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

Rtx Healthcare A/S · DRG Transmitters And Receivers, Physiological Signal, Radiofrequency

Cleared on Jul 19, 2004 as substantially equivalent to K023749 (Philips Medical Systems, 2002) after a 13-day review. Its family tree reaches back 5 generations to 1987. 59 later devices descend from it.

Decided
Jul 19, 2004
Review
13 days
Class
Class II
Product code
DRG
Recalls
None
Predicates
1

Its longest line of descent runs back 5 generations to K864318 (1987). 12 ancestors in all, the oldest K790130 (1979). 59 later devices descend from it, 5 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1996: 1 other ancestor1979: 1 other ancestor1987: 2 other ancestors1995: 1 other ancestor1993: 1 other ancestor1988: 1 other ancestor2010: 7 descendants cleared2005: 2 descendants cleared2006: 3 descendants cleared2007: 3 descendants cleared2009: 11 descendants cleared2011: 9 descendants cleared2013: 11 descendants cleared2017: 3 descendants cleared2014: 4 descendants cleared2012: 2 descendants cleared2018: 2 descendants cleared2022: 1 descendant cleared2025: 1 descendant clearedReference device: K041156 · Avant Digital Pulse Oximetry System, Models 4000, 4001 · Nonin Medical, Inc. · 2004 · recalledK864318 · The Buddy System/Health Information System · The Buddy Systems, Inc. · 1987K952979 · Hanc Network · Healthtech Services Corp. · 1996K964408 · Poseidon Cardiac Monitoring System (PCMS) · Instromedix, Inc. · 1997K993169 · Modification of: Physiological Signal Transmitter and Receiver, Model 3810A · Hewlett-Packard Co. · 1999K023749 · The M3810A Philips Telemonitoring System with M3812B Telestation (M310A/12B) · Philips Medical Systems · 200219801990200020102020
Other ancestors, by generationDescendants, by generation 3 generations back: 2 other ancestors4 generations back: 1 other ancestor5 generations back: 4 other ancestors 1 generation forward: 5 descendants2 generations forward: 7 descendants3 generations forward: 13 descendants4 generations forward: 17 descendants5 generations forward: 10 descendants6 generations forward: 6 descendants7 generations forward: 1 descendant K023749 · The M3810A Philips Telemonitoring System with M3812B Telestation (M310A/12B) · Philips Medical Systems · 2002K993169 · Modification of: Physiological Signal Transmitter and Receiver, Model 3810A · Hewlett-Packard Co. · 1999K964408 · Poseidon Cardiac Monitoring System (PCMS) · Instromedix, Inc. · 1997K952979 · Hanc Network · Healthtech Services Corp. · 1996K864318 · The Buddy System/Health Information System · The Buddy Systems, Inc. · 1987−50+5
  1. Root · 5 generations backK864318 The Buddy System/Health Information SystemThe Buddy Systems, Inc. · 1987
  2. 4 generations backK952979 Hanc NetworkHealthtech Services Corp. · 1996
  3. 3 generations backK964408 Poseidon Cardiac Monitoring System (PCMS)Instromedix, Inc. · 1997
  4. 2 generations backK993169 Modification of: Physiological Signal Transmitter and Receiver…Hewlett-Packard Co. · 1999
  5. 1 generation backK023749 The M3810A Philips Telemonitoring System with M3812B Telestation…Philips Medical Systems · 2002
  6. This deviceK041816 RTX3320PSTN Wireless Telehealth GatewayRtx Healthcare A/S · 2004
  7. Descendant · cites it directly · 45 of its ownK050929 The Hermes SystemPalaistra Systems, Inc. · 2005
  8. Descendant · 2 generations on · 35 of its ownK062215 Confidant 2.0Confidant, Inc. · 2006
  9. Descendant · 3 generations on · 34 of its ownK072698 Confidant 2.5Confidant, Inc. · 2007
  10. Descendant · cites it directly · 25 of its ownK052343 E-San Bluetooth CradleE-San Limited · 2005
  11. Descendant · 2 generations on · 24 of its ownK061328 Think Positive Diabetes Management System (T+Diabetes System)E-San Limited · 2006

Showing 5 of 59 descendants. See all descendants

Descendants cleared per year

2005: 22006: 32007: 32009: 112010: 72011: 92012: 22013: 112014: 42017: 32018: 22022: 12025: 1
2005high 11 (2009) · low 0 (2008)2026

Most influential descendants

Showing 5 of 59 · See all
  • K050929The Hermes SystemPalaistra Systems, Inc. · 2005 · cites it directly45descendants
  • K062215Confidant 2.0Confidant, Inc. · 2006 · 2 generations on35descendants
  • K072698Confidant 2.5Confidant, Inc. · 2007 · 3 generations on34descendants
  • K052343E-San Bluetooth CradleE-San Limited · 2005 · cites it directly25descendants
  • K061328Think Positive Diabetes Management System (T+Diabetes System)E-San Limited · 2006 · 2 generations on24descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K864318The Buddy System/Health Information SystemThe Buddy Systems, Inc.1987—
−4K952979Hanc NetworkHealthtech Services Corp.1996—
−3K964408Poseidon Cardiac Monitoring System (PCMS)Instromedix, Inc.1997—
−2K993169Modification of: Physiological Signal Transmitter and Receiver, Model 3810AHewlett-Packard Co.1999—
−1K023749The M3810A Philips Telemonitoring System with M3812B Telestation (M310A/12B)Philips Medical Systems2002—
0 (this device)K041816RTX3320PSTN Wireless Telehealth GatewayRtx Healthcare A/S2004—
+1K050929The Hermes SystemPalaistra Systems, Inc.2005—
+2K062215Confidant 2.0Confidant, Inc.2006—
+3K072698Confidant 2.5Confidant, Inc.2007—
+1K052343E-San Bluetooth CradleE-San Limited2005—
+2K061328Think Positive Diabetes Management System (T+Diabetes System)E-San Limited2006—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197910
198720
198810
199310
199510
199610

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200520
200630
200730
2009110
201070
201190
201220
2013110
201440
201730
201820
202210
202510
FIG. 1 — Lineage of K041816, 1987–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

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 DRG? 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 DRG device

  1. #1 K223711 ANNE Onescore 20.8 · 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? (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
*K023749The M3810A Philips Telemonitoring System with M3812B Telestation (M310A/12B)
Summary page 1
…al Transmitter And Receiver. Classification no: DRG Predicate Device: The RTX3320 device is substantially equivalent to the following predicate device: 510(k) number: K023749 Device name: M3810A Philips Telemonitoring System with M3812B TeleStation. Applicant: Philips Medical Systems Submission Device…
Philips Medical Systems2002—
†K041156Avant Digital Pulse Oximetry System, Models 4000, 4001Nonin Medical, Inc.20041

Also cleared against K023749: 9 other devices →

What descends from it? (59)

See all 59

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

NumberDeviceApplicantDecidedDescendants
K050929The Hermes SystemPalaistra Systems, Inc.200545
K052343E-San Bluetooth CradleE-San Limited200525
K062304DLM112 Daylink MonitorRtx Healthcare A/S20068
K100427Fora GW 9014 Telehealth Gateway/TD-9014 Telehealth GatewayTaidoc Technology Corporation20101
K100524Polytel (R) Apt Model: Pwa-08-01Polymap Wireless, LLC20100

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 17 years and passes through 6 companies; a new generation was cleared every 2.4 years on median.
  • None of the 12 ancestors has a recall.
  • Of its descendants, K050929 (Palaistra Systems, Inc., 2005) has gone furthest, with 45 descendants of its own.
  • 9 other devices also cite its predicate K023749.

How does its category compare?

All DRG devices

DRG Transmitters And Receivers, Physiological Signal, Radiofrequency: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · DRG

3in 2025

2007: 62008: 52009: 132010: 102011: 92012: 122013: 132014: 102015: 22016: 22017: 72018: 62019: 52020: 62021: 22022: 62023: 42024: 32025: 32026 (partial year): 2
2007high 13 (2009) · low 2 (2015)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DRG

127in 2025

2007: 63 days median2008: 74 days median2009: 94 days median2010: 68 days median2011: 104 days median2012: 103 days median2013: 146 days median2014: 177 days median2017: 98 days median2018: 220 days median2019: 122 days median2020: 159 days median2022: 287 days median2023: 212 days median2024: 125 days median2025: 127 days median
2007high 287 (2022) · low 63 (2007)2026

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

Recalls per year · DRG

3in 2007

2007: 32026 (partial year): 1
2007high 3 (2007) · low 0 (2008)2026

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

Adverse event reports per year · DRG

52in 2025

2007: 142008: 92009: 52010: 132011: 122012: 92013: 132014: 972015: 1312016: 1822017: 4842018: 1662019: 702020: 822021: 1072022: 432023: 192024: 262025: 52
2007high 484 (2017) · low 5 (2009)2025

MAUDE reports naming product code DRG, 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
2007663314
200857409
2009139405
20101068013
20119104012
20121210309
201313146013
201410177097
20152—0131
20162—0182
20177980484
201862200166
20195122070
20206159082
20212—0107
20226287043
20234212019
20243125026
20253127052
20262—1—

What is it indicated for?

The RTX3320 device is for use by patients at home. It is intended to be used in combination with a variety of patient monitors upon the prescription of a licensed physician or other authorized healthcare provider. RTX3320 serves as the remote communication link between compatible patient monitors, and the compatible healthcare facility at another location. The healthcare facility could be at a disease management center, or with the healthcare/wellness…

Read the full statement (217 words)

The RTX3320 device is for use by patients at home. It is intended to be used in combination with a variety of patient monitors upon the prescription of a licensed physician or other authorized healthcare provider. RTX3320 serves as the remote communication link between compatible patient monitors, and the compatible healthcare facility at another location. The healthcare facility could be at a disease management center, or with the healthcare/wellness provider or other out-of-hospital caregivers.

The purpose is to transmit selected medical information (such as weight, blood pressure, blood glucose) over a normal residential telephone line.

RTX3320 is a "black box" device - it is not connected to the patient and not operated by the patient. The installation must be performed by or under supervision of an authorized professional healthcare company.

This device does not measure, interpret or make any decisions on the vital data that it conveys.

Contraindications, precautions and warnings

This device is not intended for emergency calls, and may not be used for transmission or indication of any real-time alarms or time-critical data.

Clinical judgement and experience are required to check and interpret the measurements collected and transmitted.

This device is not for use in systems which substitute for medical care.

This device is not intended for patients requiring direct medical supervision or emergency intervention.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K041816: RTX3320PSTN Wireless Telehealth Gateway.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K041816

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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