Table 4 Devices and their data streams acquired during the surgery.

From: Analysing multi-perspective patient-related data during laparoscopic gynaecology procedures

Device

Parameters

Data Type

Sampling rate

Anaesthesia machine

Current values of device settings and ventilation settings (e.g., ventilation mode, pre-set values of inspirational tidal volume, positive end expiratory pressure (PEEP), etc.)

Numerical and String

60 s

 

Current values of device state and current ventilation (e.g., actual tidal volume)

Numerical

10 s

 

Active alarms

String

When available

 

Real-time data streams of airway pressure, flow, volume, CO2, O2, N2O and anaesthetic agent

Wave

20 ms

Patient monitor

Current technical and patient alarms

String

When available

 

heart rate, body temperature, blood pressures, oxygen saturation, perfusion indicator

Numerical

1024 ms

 

ECG, SPO2

Wave

ECG: 2 ms; SPO2: 8 ms

Laparoscopic camera

Laparoscopic video

Video

40 ms (25 fps)

Electrosurgical unit

Cutting and coagulation signals (active/inactive)

Wave/ binary

40 ms

Insufflator

Target and actual intra-abdominal pressures, target and actual gas flows, supply pressure, utilised gas volume

Wave

40 ms

Irrigation/suction pump

Target and actual irrigation flows, target and actual irrigation pressures, target and actual suction pressures, irrigation volume

Wave

40 ms

Laparoscopic light source

Status (on/off), actual light intensity

Wave

40 ms

Surgical motor

Actual motor speed, maximum motor speed, upper motor speed

Wave

40 ms