Some people would say that DCI began when the doors to the first clinic were opened. Some would also say that's starting in the middle. The true beginning lies in the heartbreaks and successes of early dialysis. In 1943, during the time of World War II, Willem Kolff invented the first practical dialysis machine, the rotating drum. Kolff's invention was revised and redeveloped and even inspired others to create new dialysis machines and tools. By 1948 the Kolff-Brigham Dialysis Machine and the Skeggs Leonards Plate Dialyzer were created.

Established in 1773, Johns Hopkins Bayview Medical Center has more than 700 beds. One of five member institutions in the Johns Hopkins Health System, Johns Hopkins Bayview Medical Center is a community teaching hospital. Its Baltimore-based operations include a neonatal intensive care unit, as well as centers devoted to trauma, geriatrics, sleep disorders, and weight management. It also features the state's only regional burn center. The facility includes a meditation labyrinth for patients, families, and staff to walk.

Davis Vision is a managed vision and eye care provider that serves about 55 million eye plan members through thousands of employer client groups. The company operates across the US through benefits contracts with companies, government agencies, unions, and insurance companies. In addition to covering eye exams and eyewear, Davis Vision offers discounted laser vision-correction surgery. Its centralized laboratories fill some 6,000 custom ophthalmic orders daily. Davis Vision also provides customers with a mail-order contact lens replacement service called Lens 123. The company was founded as a family optical business in 1917; today it is a subsidiary of Highmark.

Somanetics sells the INVOS System, a noninvasive device that monitors blood oxygen levels in the brain, primarily during surgery. Based on Somanetics' in vivo optical spectroscopy (INVOS) technology, the device's disposable SomaSensors and Oxyalert sensors attach to each side of the patient's forehead, and the firm's proprietary software displays oxygen levels on a computer screen. The company sells the INVOS System through a direct sales force in the US and through distributors abroad such as Covidien and Edwards Lifesciences. The company is a wholly owned subsidiary of Covidien.

The Children's Hospital to keep them rambunctious. The not-for-profit organization runs a network of health facilities in Colorado anchored by its nearly 50-acre main campus in Aurora. The campus includes a 285-bed inpatient hospital and numerous specialty outpatient clinics. The Children's Hospital also operates more than a dozen satellite locations in and around Denver where pint-sized patients can get emergency, after-hours, and specialty care. Affiliated with the University of Colorado Denver Health Sciences Center, The Children's Hospital -- led by CEO Jim Shmerling -- performs a wide range of research into pediatric illnesses, including cancer and HIV/AIDS.

PHP Companies, which does business as Cariten Healthcare, is caring for thousands of residents in eastern Tennessee. A managed care organization, Cariten provides group health plans, including HMO, PPO, and POS plans and Medicare Advantage plans for retirees. The firm provides its services on a fully-insured basis or as a third-party administration services for self-insured employers. Its Business Health Solutions unit provides managed workers' compensation care and vocational rehabilitation services. Covenant Health and Mountain State Health Alliance owned Cariten until it was acquired by Humana for $245 million in late 2008.

AIM Health Group, one of the largest health care providers in Canada, offers health and wellness services to patients, and health-related services to health care providers, employers, unions, pharmaceutical companies, and hospitals, among others. AIM operates about 65 medical facilities throughout Nova Scotia, Ontario, and Quebec, and provides services including family medicine, physiotherapy, nutrition counseling, and massage therapy. Its subsidiary -- Workplace Health & Cost Solutions (WHCS) -- provides occupational health services. Med-Emerg, which AIM acquired in early 2009, provides staffing services (primarily doctors and nurses), and infusion and chronic pain management services.

Maquet strives to ensure optimal surgeon performance. Maquet makes what could be some of the most crucial modern components of hospital operating theaters and post-op care facilities. The company is organized into three divisions: surgical workplaces (operating tables, surgical lights, ceiling service lights, and prefabricated operating and intensive care suites); cardiovascular (beating heart positioners, pumps, oxygenators, and grafts for open-heart and vascular surgeries); and critical care (anesthesia and ventilation systems for the operating theater and intensive care). Additionally the company provides software, disposables, and maintenance services. Maquet is a subsidiary of Getinge AB.

Rotech Healthcare Inc., together with its subsidiaries, provides home medical equipment and related products and services in the United States. It rents and sells oxygen and other respiratory therapy equipment and services, including oxygen concentrators, liquid oxygen systems, high pressure oxygen cylinders, homefill systems, portable oxygen concentrators, continuous positive airway pressure devices and supplies, bi-level positive airway pressure devices and supplies, non-invasive positive pressure ventilator devices and supplies, and nebulizer devices and medications. The company also sells and rents a line of durable medical equipment, such as hospital beds, wheelchairs, walkers, patient aids, and other ancillary supplies. Its patient service technicians or clinicians provide instruction and training to the patient and the patient’s family regarding equipment use and maintenance for the prescribed therapy. In addition, the company’s activities include reimbursement by third-party payors comprising Medicare, Medicaid, the Veterans Administration, and private insurers. Rotech Healthcare Inc. serves older patients with breathing disorders, such as chronic obstructive pulmonary diseases, which include chronic bronchitis, emphysema, obstructive sleep apnea, and other cardiopulmonary disorders. As of December 31, 2009, it had approximately 450 operating locations located primarily in non-urban markets in 48 states. Rotech Healthcare Inc. was founded in 1981 and is headquartered in Orlando, Florida.

International SOS heeds the call of foreign travelers in distress.International SOS company responds to traveler emergencies and calls for assistance through more than 30 International SOS medical care clinics and 25 alarm response centers staffed with doctors, security experts, translators, and air and ground transportation providers. These facilities are located across Africa, the Americas, Asia, Australia, Europe, and the Middle East. International SOS sells memberships to its global assistance network to individual travelers and small groups, as well as large multinational corporations, governments, not-for-profit agencies, and schools that have employees visiting or working abroad.

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