Katana VentraIP

Medical device

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.

Discovery of what would be considered a medical device by modern standards dates as far back as c. 7000 BC in Baluchistan where Neolithic dentists used flint-tipped drills and bowstrings.[1] Study of archeology and Roman medical literature also indicate that many types of medical devices were in widespread use during the time of ancient Rome.[2] In the United States it was not until the Federal Food, Drug, and Cosmetic Act (FD&C Act) in 1938 that medical devices were regulated. Later in 1976, the Medical Device Amendments to the FD&C Act established medical device regulation and oversight as we know it today in the United States.[3] Medical device regulation in Europe as we know it today came into effect in 1993 by what is collectively known as the Medical Device Directive (MDD). On May 26, 2017, the Medical Device Regulation (MDR) replaced the MDD.


Medical devices vary in both their intended use and indications for use. Examples range from simple, low-risk devices such as tongue depressors, medical thermometers, disposable gloves, and bedpans to complex, high-risk devices that are implanted and sustain life. One example of high-risk devices are those with embedded software such as pacemakers, and which assist in the conduct of medical testing, implants, and prostheses. The design of medical devices constitutes a major segment of the field of biomedical engineering.


The global medical device market was estimated to be between $220 and US$250 billion in 2013.[4] The United States controls ≈40% of the global market followed by Europe (25%), Japan (15%), and the rest of the world (20%). Although collectively Europe has a larger share, Japan has the second largest country market share. The largest market shares in Europe (in order of market share size) belong to Germany, Italy, France, and the United Kingdom. The rest of the world comprises regions like (in no particular order) Australia, Canada, China, India, and Iran. This article discusses what constitutes a medical device in these different regions and throughout the article these regions will be discussed in order of their global market share.

Definitions by region[edit]

United States (Food and Drug Administration)[edit]

Section 201(h) of the Federal Food Drug & Cosmetic (FD&C) Act[5] defines a device as an "instrument, apparatus, implement, machine, contrivance, implant, in vitro reagent, or other similar or related article, including a component part, or accessory which is:

Class I

Class II

Class III

equipment includes medical imaging machines, used to aid in diagnosis. Examples are ultrasound and MRI machines, PET and CT scanners, and x-ray machines.

Diagnostic

Treatment equipment includes , medical lasers and LASIK surgical machines.

infusion pumps

equipment is used to maintain a patient's bodily function. This includes medical ventilators, incubators, anaesthetic machines, heart-lung machines, ECMO, and dialysis machines.

Life support

allow medical staff to measure a patient's medical state. Monitors may measure patient vital signs and other parameters including ECG, EEG, and blood pressure.

Medical monitors

Medical laboratory equipment automates or helps analyze , urine, genes, and dissolved gases in the blood.

blood

Diagnostic medical equipment may also be used in the home for certain purposes, e.g. for the control of mellitus, such as in the case of continuous glucose monitoring.

diabetes

Therapeutic: physical therapy machines like

continuous passive range of motion (CPM) machines

Air purifying equipment may be used in the periphery of the operating room or at point sources including near the surgical site for the removal of surgical plume.[94]

[93]

Medical & Biological Engineering & Computing journal

Expert Review of Medical Devices journal

Assistive technology

Clinical engineer

Design history file

Durable medical equipment

Electromagnetic compatibility

Electronic health record

Federal Institute for Drugs and Medical Devices

GHTF

Health Level 7

Home medical equipment

Instruments used in general medicine

Instruments used in obstetrics and gynecology

List of common EMC test standards

Medical grade silicone

Medical logistics

Medical technology

Pharmacopoeia

Safety engineer

Telemedicine

Lenzer J (2017). The Danger Within Us: America's Untested, Unregulated Medical Device Industry and One Man's Battle to Survive It. Little, Brown and Company.  978-0316343763.

ISBN

Media related to Medical devices at Wikimedia Commons