Mallinckrodt, a Tyco Healthcare company makes and distributes products for respiratory care; bulk and dosage pharmaceuticals, primarily for pain relief and addiction therapy; and imaging agents for magnetic resonance, ultrasound, X-ray, and nuclear medicine applications. With worldwide manufacturing and distribution facilities, as well as worldwide sales offices, Mallinckrodt sells its products worldwide.
GastroMARK® is marketed in the United States by Mallinckrodt, Inc.

In June 2007 Tyco International Ltd. completed the separation of its healthcare business, which is named Covidien. Mallinckrodt, Inc. is now part of Covidien Ltd.

MRI Contrast Agents:

The company is a leading manufacturer and developer of magnetic resonance imaging (MRI) scanners. The Patient Friendly MRI Company, formed in 1978, is engaged in the business of inventing, manufacturing, selling and servicing magnetic resonance imaging (MRI) scanners. FONAR is the oldest MRI company in the world. After receiving hundreds of millions in a windfall from protecting their MRI patents, they made a MRI scanner that no other MRI manufacturer has. One that the patient stands in and they call Indomitable, the Stand-Up MRI. Patients like it because it is the least claustrophobic, most comfortable MRI on the market. Doctors like it because of its superior image quality and for the first time, the patient can be scanned in the weight-bearing position, or the position of pain or symptom. In October of 2004, the company changed the product name of the Stand-Up MRI to the Upright MRI. Fonar introduced the first "open" MRI scanner in 1980 and is the originator of the iron-core nonsuperconductive and permanent magnet technology.

MRI Scanners:

- 0.6T:

The range of diagnostics and imaging systems of Siemens Medical Systems covers ultrasound, nuclear medicine, angiography, magnetic resonance, computer tomography and patient monitoring. Siemens is one of the three leading MRI manufacturers, which together account for approximately 80 percent of the MRI machines installed worldwide. Siemens currently offers the Allegra 3T MRI, which is for head scanning only, but the company will also be launching the Trio MRI, a 3T whole body scanner.
Siemens has formed partnerships with more than ten research institutions and private practitioners to define a comprehensive MRI examination and compare MR to currently established cardiovascular modalities, thereby defining optimal diagnosis and treatment.

MRI Scanners:

0.2T to 1.0T:
1.5T:
3.0T to 7.0T:
Hybrid Scanners:
Mobile Solutions:

MagneVu, located in Carlsbad, California produced the MagneVu 1000 (Applauseâ„¢), a portable in-office magnetic resonance imaging scanner. Founded and incorporated in 1991, the company has financed its operations through the sale of private equity and debt to accredited investors, corporate partners, and venture capital. MagneVu won a trophy in the life sciences category for developing the low-cost MagneVu 1000, a device with unique features that aids physicians in providing state of the art arthritis care.
In May 2008 MagneVu, Inc. went out of business (Chapter 7 liquidation filing under bankruptcy).

MRI Scanners:

0.2T:

Odin Medical Technologies, Ltd. was founded in Israel, in 1996. Odin Medical Technologies, Inc. was established in early 2000 in the United States as a wholly owned subsidiary.
Odin Medical Technologies develops and manufactures intraoperative magnetic resonance imaging (MRI) image guidance systems designed to improve neurosurgical interventions with a special focus on minimally invasive procedures.
As of July 25, 2006, Odin Medical Technologies, Ltd. was acquired by Medtronic, Inc.

MRI Scanners:

0.23T: