医疗城 · 设备实验室 · 第 20 台，共 69 台
电生理标测系统
EP Mapping System
BMEssentia 医疗城设备实验室中的电生理标测系统。以可交互 3D 打开设备，逐个部件拆解，了解其工作原理，然后在 BMEssentia 平台上系统学习，并向 Essentia 提问。
本页的设备实验室内容为英文，与医疗城中的内容一致。
- 10 个部件
- 设备实验室中有 2 种配置
- 又称: Ep Mapping, Cardiac Mapping System, Electroanatomic Mapping
设备实验室
EP Mapping System
Ten sticky discs on the skin and the cable loom that runs from them to the cart. On a monitor they would be the whole story; here they are the reference everything else is measured against, and almost nobody looks at them until one falls off.
部件
逐个部件讲解。
Surface ECG electrodes and leads
Ten sticky discs on the skin and the cable loom that runs from them to the cart. On a monitor they would be the whole story; here they are the reference everything else is measured against, and almost nobody looks at them until one falls off.
Multielectrode mapping catheter
A steerable tube a little over two millimetres across and more than a metre long, carrying anywhere from ten to sixty-four small ring electrodes near its far end. It is the instrument that actually collects the map, one contact at a time or a thousand contacts a minute depending on its shape.
Irrigated ablation catheter
The instrument that does the treatment. Same shaft and steering as a mapping catheter, but ending in a single larger electrode with holes in it, through which saline runs continuously while energy is delivered.
Catheter connection cables
The reusable cables between the sterile catheters and the equipment. Each one is a bundle of dozens of individually screened conductors terminating in a multi-pin connector, and they are the part of this system that breaks.
Patient interface unit
The box on the cart with two rows of coloured sockets across its face. Everything that touches the patient plugs in here, and everything that plugs in here is on the wrong side of an electrical barrier from the rest of the room.
Multichannel recording amplifier
The module that turns signals of a few hundred microvolts into something a computer can work with, across sixty-four to two hundred and fifty-six channels at once, while a radiofrequency generator is running a metre away.
Programmed stimulator
The part of the system that makes the heart do something rather than watching it. It paces through the same catheters that are recording, in precisely timed sequences, to provoke the rhythm the case exists to treat.
Mapping workstation
A computer in the bottom of the cart, and the part of this device that does the most while being the least visible. It turns a few thousand located points into a chamber you can rotate on a screen.
Map and electrogram displays
Two large screens on a crossbar above the cart, and in a real laboratory several more on a boom over the table. One shows the chamber being built, the other shows the signals it is being built from.
Radiofrequency generator
A cabinet on castors beside the cart, with a large output control and a small screen. It makes the energy that does the treatment, and it is the only part of this system whose job is to destroy tissue rather than to measure it.