The Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a 'network of networks' that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked web pages and other resources of the World Wide Web (WWW).There are many medical internet service providers. For example Medicine Online Inc. is a World Wide Web directory of medical related sites. Medicine Online is a medical internet service provider for hospitals and the medical community. Medicine Online provides up-to-date medical resources, information, references, and connections for just about anyone in the medical field. It will allow medical organizations such as hospitals, pharmaceutical, and biotechnology companies to distribute information about their product and services not just locally, but globally via the World Wide Web through e-mail services, database programs, forms, and advertising

Intra corneal rings are polymethylmethacrylate segments that are surgically fitted into the core corneal stroma to even out the central cornea. It is suitable in optical application for the treatment of various eye conditions like keratoconus, forme frusta keratoconus with mild myopia, post-LASIK ectasia, pellucid marginal degeneration and cornea.

Intra-Aortic Balloon Pumps are used to facilitate arterioarterial pumping. Intra-aortic balloon pumps consist of an elastomeric balloon that is pneumatically driven and controlled to raise central aortic pressure soon after left ventricular ejection & aortic valve closure. This reduces the workload of the heart. These are inserted percutaneously into the aorta via a femoral artery. Intra-aortic balloon pumps are used in refractory cardiac failure as a bridge to surgery.