CLIENT ACCESS POINT - tcbi.org

© 2010-2011 Masimo Corporation

Probe Request

Probe Response

Authentication Request

Authentication Response

Association Request

Association Response

CLIENT ACCESS POINT

Let’s Get Associated!


Episodic vs Continuous Wireless Connectivity

Are devices ready for real time?

FDA 510(k) pending

Brian Long, CWNADirector, Field Systems Operations

[email protected]


Presentation Scope

> Wireless Demands & Challenges in Hospital Environments

> Real-time, continuous Patient Data

> Network Requirements

> Testing Approach

> Real World Results

> Recommendations & Conclusions


Hospital Wireless Business Case Demands

EPISODIC CONTINUOUS

Voice Waveforms

VideoReal-time, Continuous

Parametric Data

EMR Applications

PCA Drug Library Updates

Real-time Location Systems

Guest Network

Many more!


“Healthcare: The Most Challenging WiFi Environment?”Marcus Burton, CWNE #78


Masimo Patient SafetyNet™

Connect patients with caregivers quickly, easily, and accurately

Accurate, reliable

wireless

measurements at

the bedside

Actionable alarm

notification to

qualified

clinicians

Rapid response

initiated only

when needed

Earlier and more

appropriate clinical

intervention


IT Network Components

> Choice of bedside devices

> Low data rate streaming data

> Hardwired Ethernet (802.3)

> WLAN (802.11b/g/n or a/n)

> Encryption: WEP / WPA / WPA2

> Authentication: PSK / 802.1X

> HP Server

> HP TouchScreen

> Installed in Data Center

> Remote VPN Support

> Supports 80 Bedside Devices

> Supports 4 Separate Clinical

Assignment Stations

> Remote notification choices

> Emergin interface option

> Dedicated or shared

notification devices

> Support IP Phones, Pagers


Coverage

Latency

Packet Loss

Availability

Clinician Experience

Testing Approach

24h

r N

etw

ork

Perf

orm

an

ce T

est


Requirements

COVERAGE

• Primary -67dB

• Secondary -72dB

LATENCY

• Wired <30ms

• Wireless <100ms

PACKET LOSS

• < 2% for Total Testing Time

AVAILABILITY

• => 99.9% for Total Testing TimeS

CLINICIAN EXPERIENCE

• Network/Application Disconnect Report


Initial Wireless Site Survey – Primary Coverage


Initial Wireless Site Survey – Secondary Coverage


Network/Application Disconnect ReportIn

str

um

ents


Wireless Site Survey [Primary]

Network Remediation


Wireless Site Survey [Secondary] –

Network Remediation


Network/Application Disconnect ReportIn

str

um

ents


Dartmouth Study


Clinically Proven to Help

Clinicians Improve Outcomes

Taenzer A et al. Anesthesiology, 2010.


Patient SafetyNet Reliability, Patient Compliance,

and Alarm Frequency

Ten month study, covering 36 bed unit, 2,841 patients and

9,978 monitored days and over 1 billion data points

Wireless System Uptime Reliability 99.9995%

Patient Compliance 98.2%

Average Alarms per patient per day 4

Taenzer A et al. Anesthesiology, 2010.


Patient SafetyNet Paging Protocol

Page Initial

Primary

Esc. Primary

Secondary

Re-Esc.

Primary

Secondary

Supervisor


Identify Network Business Objectives


Mitigate Risks w/ ISO-80001 In Mind


Recommendation – Invest in Wireless Education

CLIENT ACCESS POINT - tcbi.org

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