Bloodless weapon

This wasn't a just breaking news story. Baylor Medical Center and Dallas Methodist Hospital / WFAA tv.

Q: Shouldn't hospital equipment manufacturers completely shield their equipment from interference?

A: Improvements in shielding and filtering should be done, and they are, but perfect shielding would be a nearly impossible task. For example, many types of patient monitors must have several long dangling leads that can inadvertently act as antennas. The biomedical voltages being sensed by the monitors are very small compared to RF voltages that could be induced in the leads by nearby transmitters. Every patient's setup is different, because the leads hang in different geometries. The lead geometry changes from minute to minute as the patient moves around. Some geometries may facilitate interference from nearby transmissions, others not. No manufacturer could do sufficient testing to insure that interference could not take place regardless of how the monitors/leads are set up and used.

What is an artificial pacemaker?
A small battery-operated device that helps the heart beat in a regular rhythm. There are two parts: a generator and wires (leads). View an animation of a pacemaker.

• The generator is a small battery-powered unit.
• It produces the electrical impulses that stimulate your heart to beat.
• The generator may be implanted under your skin through a small incision.
• The generator is connected to your heart through tiny wires that are implanted at the same time.
• The impulses flow through these leads to your heart and are timed to flow at regular intervals just as impulses from your heart's natural pacemaker would.
• Some pacemakers are external and temporary, not surgically implanted.

It's good to question everything. I should do it more I suppose, mostly I don't care though.