Shanghai Inertia

cardiopulmonary resuscitation — Life Science & Health exhibit for science museums

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Category	Life Science & Health
Standard size	Custom size
Supply	Single unit or batch · OEM to your drawing
Lead time	Standard 4–8 weeks after deposit (confirmed per contract)
Warranty	1 year, structure and control
Documents	Specification sheet · control diagram · spare-part list

A standard catalogue model: the dimensions, control package and finish are fixed, which is what keeps the price and the lead time predictable. Size, colour and interface language can be adapted without a new design cycle.

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01 / Overview

CPR, also known as cardiopulmonary resuscitation, refers to the use of chest compressions and artificial respiration to maintain the function of the cardiovascular system and supply oxygen to the patient's heart and brain. CPR is a simple and effective first aid technique that can be used in emergency situations of cardiac arrest or respiratory arrest, with the aim of restoring the patient's spontaneous breathing and circulation until professional medical services arrive. This includes three techniques: chest compressions (C), open airway (A), and artificial respiration (B), which are referred to as "C-A-B" or "A-B-C" in sequence.

02 / How visitors use it

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

03 / The science behind it

The principle of cardiopulmonary resuscitation: ① Establishing artificial circulation: forming a temporary artificial circulation through chest compressions and restoring spontaneous pulsation. External chest compression can increase the pressure inside the chest cavity, causing blood to flow from the chest cavity to the surrounding area, while veins cannot transmit pressure to veins outside the chest cavity due to collapse and obstruction by one-way venous valves. When the pressure is relaxed, the chest pressure decreases. When the chest pressure is lower than the venous pressure, venous blood flows back to the heart, filling the ventricles and establishing an effective artificial circulation. ② Alternative to artificial respiration: Artificial respiration replaces spontaneous breathing for gas exchange, achieved through mouth to mouth blowing or the use of a simple ventilator, with a compression to blowing ratio of 30:2, meaning that after every 30 chest compressions, 2 artificial breaths are performed. This alternating operation helps maintain the patient's oxygenation status and prevent tissue damage caused by hypoxia.

04 / Built for a public floor

Every unit leaves the factory after a running test: mechanisms cycled, electronics burned in, edges dressed, fixings torqued and marked. Wear parts — bearings, sliders, lamps, belts, touch panels — are modular and listed on the spare-part sheet, so a venue technician can replace them without returning the exhibit. Crating is plywood with foam blocking; the loading plan and packing list travel with the shipment.