Medical device
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A medical device is any device intended to be used for medical purposes. Significant potential for hazards are inherent when using a device for medical purposes and thus medical devices must be proved safe and effective with reasonable assurance before regulating governments allow marketing of the device in their country. As a general rule, as the associated risk of the device increases the amount of testing required to establish safety and efficacy also increases. Further, as associated risk increases the potential benefit to the patient must also increase.
Tongue depressor, a Class I medical device in the United States
Infusion pump, a Class II medical device in the United States
Artificial pacemaker, a Class III device in the United States
Medical devices were used for surgery in ancient Rome.
Surgical instrument
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A surgical instrument is a medical device for performing specific actions or carrying out desired effects during a surgery or operation, such as modifying biological tissue, or to provide access for viewing it. Over time, many different kinds of surgical instruments and tools have been invented. Some surgical instruments are designed for general use in all sorts of surgeries, while others are designed for only certain specialties or specific procedures.
Image: Surgical Instruments 01
Image: Surgical instruments 02
Image: Babcock
Image: Uterine Curette 03