Parsys Cloud is a cloud-based solution allowing a secure and user-friendly exchange of medical data and video-communication between remote sites.
It allows an isolated crewmember on a ship to connect with a remote medical center for relief or a health professional to receive the support of an expert on a specific issue.
Example in remote clinic:
Parsys Medical Cloud
Parsys Cloud is a technical integration brick at the server level, in charge of insuring the integrity of data transmitted from clients’ workstations and technical interfaces with the Electronic Health Record (EHR). Opening a Cloud account is a necessary prerequisite for any entity wishing to acquire biomedical sensors.
Parsys Télémédecine is particularly vigilant to data flows transiting in both directions between the “Pivots” (institutions) and dozens of other institutions gravitating around it, each with their own security policy and network topology.
Based on open and modern standards such as Websocket and WebRTC, the secure transport layer is designed to switch seamlessly NAT routers, firewalls, and proxies from an HTTPS elevation. In nominal configuration, sending data requires no additional port opening for concerned institutions’ IT services.
Following the latest industry conventions, Parsys Cloud has a Web service communication layer allowing a perfect and modular integration thanks to an REST API (HTTPS / JSON).
Scalability & Flexibility
Parsys Cloud is conceptually agnostic to the type of medical data transiting through its mediation network. Compatible with biomedical sensors provided by Parsys Telemedicine, it is also designed to easily accommodate other sensors that may be integrated in future evolutions. The existence of a local software and a cloud server allows any potential interfacing. The interfacing can be done either through external “Clouds” – as required by many large public welfare manufacturers through Web services and the authentication OAuth2 directly from the hub – or on the client’s workstation in order to communicate with drivers and exclusively local addressable interfaces. Mobile solutions (SDK iOS / Android) allow remote monitoring such as home monitoring.
Medical Data Persistence
Parsys Cloud is hosted in compliance with HIPAA, European and French Medical hosting regulations with 24/7 managed services. When the persistent data is external to the middleware, data only transit through the Cloud and are automatically deleted once dispatch and final disposal are over.
- Full web solution for expert.
- Transfer of secured data (certified encryption AES 256 bit).
- Adaptive Compression depending on functional area, with or without loss as required.
- Optimized flow, based on our expertise acquired from the extreme mobility projects (maritime, medical deserts) requiring low bandwidth (satellite, GSM).
- Resolution adapted to the sensor: no visual artifacts or resolution changes that could hamper medical diagnosis.
- Respect of the instruments’ native frequency.
- Conformity to medical CE certification for each instrument.
- Perfect transition between synchronous and asynchronous modes.
- Extendibility towards other medical as well as standard sensors (Continua ISO/IEEE 11073 etc.).
- Respect for the UI (Man-Machine Interface) and for the existing charter.
ParsysRTC (for Real Time Communications) is the newest-generation of fully web-based videoconferencing solution for telemedicine.
Its main advantages over traditional systems are:
- Easy extension of the signaling stack with new real time events (subscribe to updates, alerts, etc.).
- Seamless integration with medical data (stethoscope, dermatoscope, otoscope, ultrasounds, etc.).
- Flexibility of deployment cloud or on-premise, according to end users environment.
- Proven technology platform due to the adherence to the WebRTC community (Google, Vydio, among other users).
- First-class video and audio quality with optimized bandwidth.
Integration & Ease of use
ParsysRTC is the only videoconferencing solution exclusively dedicated to telemedicine, which allows a much more appropriate ergonomics.
Unlike competing enterprise videoconference solutions, which are highly monolithic, ParsysRTC is built from the ground up to be modular, and easily integrated within an existing web platform.
RTC supports authentication and authorization of users through a simple web interface accessible to administrators to create and edit user accounts. Since RTC is not a phone platform such as old VoIP-derived products, the management interface can be extremely trivial to use. At a minimum, users only need an ID (we suggest using email addresses) and a password. Up to several million accounts can be created, using MongoDB built-in the signaling server as a persistent backend.
As the designer of the full stack solution, Parsys Télémédecine can provide unmatched extensive support. Customers can have direct access to the core development team of the RTC system. Special care is given to help client developers and IT staff integrate with the solution within their code case, as well as operating the system reliably and with confidence.
A solid technological base
ParsysRTC is largely based on an implementation of the WebRTC standard. Originally developed by Google since 2011, WebRTC is now included natively in Google Chrome and Mozilla Firefox (MS Edge and Apple Safari have announced support in the near future.
Consequently, the code is constantly tested, qualified and audited by a large community of experts that help our developers. This gives us a major technological advantage over traditional proprietary solutions, especially in terms of reliability and performance.
In addition, WebRTC is now ETF and W3C-compliant (telecom international standards), which guarantees a continuity and compatibility with international standards in the present and future. For example, the interconnection between WebRTC and SIP existing equipment (Cisco, Microsoft Lync, etc.) is possible.
Flow Security (TLS RSTP, AES, digital certificates) is also in line with the state of the art on the market.
An unmatched video & audio quality
The video codec used by ParsysRTC is VP9. Finalized in early 2013 by Google and Vydio, VP9 is the latest generation in optimizing the signal and thus uses up to 50% less bandwidth than competing products currently available (Cisco, Skype, VSee, Digigone, Lync, etc.) using H264 or VP8.
The audio quality is a topic that is rarely addressed by suppliers of conventional videoconferencing. We, however, believe that the quality of the audio, and the reduction of bandwidth caused by optimal compression, are key considerations for a medical consultation.
Opus allows a far superior voice input than possible on the phone and existing audio codecs (G722, G729, Speex) with an improved bandwidth consumption and shorter delay.
A bandwidth usage adapted to satellite
VP9 and Opus codecs are specially adapted to low bandwidths (500 kbps) and latency of around 600 ms as often found on a satellite. In addition to supporting medical instruments’ quality, its exceptional performance allows a drastic reduction in the cost of satellite communications.
Finally, ParsysRTC offers many options configurable by the customer in order to save on bandwidth:
- audio-only transmission;
- transmission at a different rate of each side: only the image of the patient is essential, the quality of the image transmitted by the physician may be lower or eliminated if necessary;
- definition of a maximum usable speed either by reducing the resolution or the refresh rate of the image (configurable on the server, rather than on the station for easier management).
Parsys MedCapture is a client interface running as a background task on equipped workstations.
In a transparent and intuitive matter, it allows:
- Local data acquisition
- Dialogue with the different physical drivers on the devices
- Configuration of the devices if necessary
- Orchestration of the application builders when inseparable from the sensors
- Full access control of the remote station
- Transmission to Parsys Cloud for integration with electronic health records
Consequently, the software installation is a necessary prerequisite for all workstations equipped with sensors.
Parsys MedCapture can be used in asynchronous mode. Once the software launched, a medical dedicated Man-Machine Interface (UI) shows up. The UI can be configured during the installation specifically for managing of devices connected to the workstation.
According to the requested sensor, Parsys normalizes the data in order to insure an adapted visualization experience. For example, when using a medical camera such as ophthalmoscope, otoscope, dermatoscope, general exam, a picture or a video is directly accessible in the expert doctor’s web browser. Similarly, when using an oximeter, an oximetry value is delivered in text and directly fills an EHR field. It works the same way with other medical sensors.
The expert doctor can remotely activate an UI in synchronous mode. In such mode, the solution is able to support real-time flows like streaming flow. Within a ParsysRTC video consultation, the user can also activate the medical UI in streaming mode. In order to respect the patient’s private life, the receiver must accept the video request to share his screen and to allow a remote access of his workstation. Once the authorization given, the expert doctor can take full control (remote start and stoppage of the instrument, real-time patient’s condition, use of calipers in capture of an ECG, change of visualization or traces resolutions, etc.).
Furthermore, at the end of a consultation, a Web service call allows the sending of secured data, at appropriate formats, which will be included into the EHR to insure traceability of the medical act.