Dopplex Centrale (DCII) is a software package that collects and manages real-time data from a maximum of 48 individual fetal monitors which are connected to a central server by means communication links. Dopplex Centrale is indicated for use in healthcare facilities by healthcare professionals whenever there is a need for comprehensive and centralised obstetrical surveillance of those maternal patients who are being monitored by otherwise autonomous CTG devices. Fetal heart rate information can be concurrently viewed on up to 50 conveniently sited computers including a central station, patient bedsides, nurses' lounges and physicians' offices. Dopplex Centrale provides an easy to use means of patient surveillance within a perinatal environment within a hospital. A Dopplex Centrale system is specified, supplied, commissioned and maintained exclusively by the manufacturer, Huntleigh Healthcare, or its appointed agents. It provides storage and archiving of FHR traces together with the associated patient details. The specific medical indications for the use of this device is : - This device is a prescription device - This device is not intended to contact the patient - This device is used continuously in Obstetrical Departments - Basic fetal trace alerting for antepartum and intrapartum applications - The physiological purpose is indirect. The device is intended to gather and store fetal and maternal information provided by the attached fetal monitors which constitute the primary care sources.
Device Story
Dopplex Centrale (DCII) is a centralized perinatal monitoring software system. It collects real-time fetal and maternal vital-signs data from up to 48 fetal monitors (Huntleigh or third-party) via serial or network (IEEE802.11) links. The system stores data in a secure database for review, partogram charting, and reporting. Used in hospital obstetrical departments by clinicians; data is viewed on networked client workstations. The system provides audible and visual alerts for bradycardia, tachycardia, loss of contact, and cross-channel twins. It supports remote data retrieval via dial-up modem from portable monitors. The device acts as an electronic alternative to paper charts, facilitating patient management and clinical decision-making by providing a comprehensive overview of unit status and individual patient progress.
Clinical Evidence
Bench testing only. Safety and effectiveness demonstrated through compliance with standards (UL1950, IEC950, EN60950, EN 60601-1-1, BSEN60601-1-4) and extensive validation procedures. No clinical study data provided.
Technological Characteristics
Software-based central monitoring system; runs on off-the-shelf PC/server hardware. Connectivity via serial, wired/wireless LAN (IEEE802.11), and dial-up modem. Supports HL7 interface for HIS integration. Configurable via manufacturer-controlled software switches. Database-driven storage and archiving. No direct patient contact.
Indications for Use
Indicated for healthcare professionals in hospital obstetrical departments for centralized surveillance of maternal patients monitored by autonomous CTG devices. Used for antepartum and intrapartum fetal heart rate monitoring. Prescription only; no direct patient contact.
Regulatory Classification
Identification
A perinatal monitoring system is a device used to show graphically the relationship between maternal labor and the fetal heart rate by means of combining and coordinating uterine contraction and fetal heart monitors with appropriate displays of the well-being of the fetus during pregnancy, labor, and delivery. This generic type of device may include any of the devices subject to §§ 884.2600, 884.2640, 884.2660, 884.2675, 884.2700, and 884.2720. This generic type of device may include the following accessories: Central monitoring system and remote repeaters, signal analysis and display equipment, patient and equipment supports, and component parts.
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MAR 2 3 2006
## SECTION 5
510(k) Summary
K060230
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.
# DOPPLEX CENTRALE
| Submitter's Name | Huw Jones<br>Technical Manager |
|---------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|
| | Huntleigh Healthcare Ltd.<br>Diagnostic Products Division<br>35 Portmanmoor Road<br>Cardiff<br>CF24 5HN<br>United Kingdom |
| Telephone Nº | (+44 2920) 485885 ext 370 |
| Fax Nº | (+44 2920) 492520 |
| e-mail | huw.jones@huntleigh-diagnostics.co.uk |
| Name of Device | Dopplex Centrale |
| Manufactured by | Huntleigh Healthcare Ltd.<br>Diagnostics Products Division<br>35 Portmanmoor Road,<br>Cardiff<br>CF24 5HN<br>UK |
| Contact Person | Huw Jones |
| Date of summary | 5th December 2005 |
| Classification Name<br>Product code<br>CFR number | Perinatal monitoring system and accessories<br>HGM<br>884.2740 |
| Predicate Device | Philips OB TraceVue (K970456)<br>Formerly Hewlett Packard (Agilent) Series 500B Trace Vue |
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#### Device Description
The Dopplex Centrale (DCII) monitoring system provides a powerful flexible solution to satisfy current and future central monitoring requirements for perinatal care wards. Various makes of fetal monitor can be linked to Dopplex Centrale which collects data from up to 48 beds in real time. This data is displayed graphically to the user at conveniently sited client workstations. The CTG information is saved using a secure database for subsequent review and patient management. Dopplex Centrale is customisable at manufacturer to cater for disparate needs of particular antenatal clinic or labour ward sites. Dopplex Centrale can be configured to suit the operating protocols of individual customers.
#### Key Features of Dopplex Centrale
- Only one software release for all installations. Supplementary or custom features offered as . additional component modules to the core functionality. Unwanted options are disabled at supply via manufacturer configurable software switches.
- Capable of data exchange with an external HIS via HL7 interface or similar according to . customer supplied specifications and acceptance requirements.
- Collection of real-time fetal and vital-signs data from Huntleigh and other supported fetal . monitors by third party equipment manufacturers using industry standard data communication protocols.
- Fetal monitor CTG data transmitted over serial port via direct link to Dopplex Centrale or by . means of a local area network (wireless and wired IEEE802.11) using external access equipment such as bridges, routers and data concentrators.
- . Configurable trace rates and vertical scales
- The real-time data can be viewed anywhere on the DCII network. Single or multiple traces . can be viewed. Each trace offers smooth horizontal scrolling, on trace display and annotation of traces, date/time indication.
- Alerts (Bradycardia, Tachycardia, loss of contact, cross-channel twins monitoring . verification) are displayed on the CTG trace, in the bed column and as an audible alert. A user can customise the alert settings or the default settings can be used. Colour bands on the graticule indicate the alert settings. These are supplementary to the local alert thresholds on the individual fetal monitors.
- Key clinical indicators are displayed below the chart so that users can view important . information specific to a patient. These indicators are selected when the user enters a patient's data.
- . A 'chalkboard' option provides an overview of the current status of all beds on the unit. The format of the 'chalkboard' information table is customisable at manufacture or by the system administrator. The default 'chalkboard' fields are "Consultant", "Midwife" and "Comments". The 'chalkboard' display is a live overview of the current status of the unit and its data is not saved
- . A labour suite administrative ontion provides a customisable table which is primarily intended to provide an on-call duty rota with contact details, for key obstetric staff and other specialists who may need to be consulted in an emergency.
- A partogram option allows the progress of labour to be viewed as a clinical chart for . individual patients. Typically, data is entered into the partogram chart every 15, 30 or 60 minutes. Partogram layout and content varies widely. Dopplex Centrale is able to customise the chart style according to local requirements.
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- Beds can be grouped together under generic categories such as 'labour ward' or 'day centre' . to permit optimal flexibility in organising the layout of the system.
- All CTG traces and partogram charts can be retrieved from the database for reviewing. .
- Able to accept off line CTG files via a dial-up modem connection to a Fetal Assist portable . fetal monitor working remotely in the community. Dopplex Centrale only supports a modem connection with this Huntleigh product using a pre-defined and company confidential data format. Remotely downloaded Fetal Assist files are stored in the database and accessed for review as per on-line recordings.
- The patient details dataset is fully customisable at manufacture according to user requirement . specification.
- Each CTG can have a set of trace notes attached to it. These notes are fully customisable at . manufacture according to user requirement specification.
- Dopplex Centrale II can print patient reports, which can be configured by the user or system . administrator. The reports can contain any data available in the database.
- Dopplex Centrale II can limit the information displayed to the user so that if a client is . running in an insecure environment the data displayed can be set to be non-patient specific.
- Dopplex Centrale II provides on-line help and a reference library. .
- Dopplex Centrale II provides an audit log. .
. ............................................................................................................................................................................
ﺮ
- Dopplex Centrale II provides full patient backup by means of an automated database archive t and backup service. The data can be archived to removable media.
- . Dopplex Centrale II provides user authentication and authorisation for some or all of the actions within the system.
- If Centrale II loses contact with a Fetal Assist monitor for a length of time (user defined) and � then re-establishes contact with the assist or monitor, a command is sent out asking for any buffered data which may be held by the monitor concerned. If historical data is available it will be sent through in bulk form so that the gaps in the trace can be filled in. The amount of historical data sent will not affect the transmission of the real-time data.
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### Summary of Safety and Effectiveness
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Dopplex Centrale (DCII) replicates the essential functions of the Phillips OB TraceVue system for applications requiring centralised perinatal monitoring of CTG devices.
Dopplex Centrale permits easy-to-use patient surveillance within a hospital environment. It is modular in nature and can be tailored to the working practices of individual institutions through the use of various feature options that are configured by the manufacturer.
The modular nature of its implementation allows Dopplex Centrale complete flexibility in terms of deployment architecture. Again, under manufacturer control subjugate to agreement of customer requirements. It is possible to build a stand-alone solution consisting of a single computer or a fully networked system using a central server and up to 50 remote client machines. Dopplex Centrale provides Obstetric and Gynecology departments with an electronic alternative to conventional perinatal paper charts and records. Dopplex Centrale collects the real-time data from up to 48 fetal monitors and saves this information within a managed database.
The CTG data as received from multiple bed sources can be viewed on screen in an effective and comprehensible manner. Dopplex Centrale interchangeably supports data communication protocols for a variety of fetal monitor models including the Huntleigh BD4000 and the Phillips Series 50 range.
The hardware for this system is off the shelf PCs and servers which meet the required performance specification. The central server will always be supplied to the end user as a preconfigured computer by the manufacturer.
Substantial equivalence between Dopplex Centrale and the Phillps OB TraceVue product has been determined through a comprehensive review of the features of the latter as defined within its product labelling and marketing information. This indicated that Dopplex Centrale is substantially equivalent to the legally marketed predicate device with regards to safety effectiveness and intended use.
The safety of the computer platform host machines is shown by compliance with the relevant standards for ITE devices such as UL1950, IEC950 or EN60950. The electrical safety requirements for the holistic system have been established by review of EN 60601-1-1. Software safety is demonstrated by conformance with the Risk Assessment requirements BSEN60601-1-4 and extensive validation procedures prior to release to end users.
The intended use of this device is the same as the intended use for many other products which arc already placed on the market. These devices, as well as the predicate OB TraceVue, provide similar information as is furnished by Dopplex Centrale. This clinical information can be interpreted by medical professionals working within the Obstetric and Gynecology field. Therefore, all aspects of Dopplex Centrale have predicates in other devices which are already well accepted within the clinical community.
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Image /page/5/Picture/1 description: The image shows a circular logo with a stylized bird in the center. The bird is facing left and has three curved lines representing its wings or feathers. Encircling the bird is text that reads "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA". The text is arranged along the circumference of the circle, with "DEPARTMENT OF HEALTH & HUMAN SERVICES" at the top and "USA" at the bottom.
MAR 2 3 2006
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Huntleigh Healthcare % Mr. Stefan Preiss Responsible Third Party Official TÜV Product Service 1775 Old Highway 8 NEW BRIGHTON MN 55112-1891 Re: K060230
Trade/Device Name: Dopplex Centrale DCII Regulation Number: 21 CFR \$884.2740 Regulation Name: Perinatal monitoring system and accessories Regulatory Class: II Product Code: HGM Dated: March 6, 2006 Received: March 8, 2006
Dear Mr. Preiss:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits wour device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation prumber at the top of this letter:
| 21 CFR 876.xxxx | (Gastroenterology/Renal/Urology) | 240-276-0115 |
|-----------------|----------------------------------|--------------|
| 21 CFR 884.xxxx | (Obstetrics/Gynecology) | 240-276-0115 |
| 21 CFR 892.xxxx | (Radiology) | 240-276-0120 |
| Other | | 240-276-0100 |
Also, please note the regulation entitled, "Misbranding by reference to premarket noufication" (21 CFR 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/edrh/industry/support/index.html.
Sincerely vours.
Nancy C. Brigdon
Nancy C. Brogdon Director. Division of Reproductive, Abdominal, and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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### Indications for Use
510(k) Number (if known): K060230
Device Name:
Dopplex Centrale DC II
#### Indications for Use:
Dopplex Centrale (DCII) is a software package that collects and manages real-time data from a maximum of 48 individual fetal monitors which are connected to a central server by means communication links.
Dopplex Centrale is indicated for use in healthcare facilities by healthcare professionals whenever there is a need for comprehensive and centralised obstetrical surveillance of those maternal patients who are being monitored by otherwise autonomous CTG devices. Fetal heart rate information can be concurrently viewed on up to 50 conveniently sited computers including a central station, patient bedsides, nurses' lounges and physicians' offices.
Dopplex Centrale provides an easy to use means of patient surveillance within a perinatal environment within a hospital. A Dopplex Centrale system is specified, supplied, commissioned and maintained exclusively by the manufacturer, Huntleigh Healthcare, or its appointed agents. It provides storage and archiving of FHR traces together with the associated patient details.
The specific medical indications for the use of this device is :
- . This device is a prescription device
- 피 This device is not intended to contact the patient
- 대 This device is used continuously in Obstetrical Departments
- 내 Basic fetal trace alerting for antepartum and intrapartum applications
- The physiological purpose is indirect. The device is intended to gather and store l fetal and maternal information provided by the attached fetal monitors which constitute the primary care sources.
Prescription Use YES (Part 21 CFR 801 Subpart D)
Over-The-Counter Use NO AND/OR (21 CFR 801 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of Reproductive, Abdominal,
and Radiological Devices
| 510(k) Number | K060230 |
|---------------|---------|
|---------------|---------|
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1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
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Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
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Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
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Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
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Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
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Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
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Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
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A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
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The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.