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An apparatus and method enabling the injection of fluid media into a plurality of patients is provided, including a fluid supply source providing multiple doses, a metering device for measuring the doses, a pressurizing device to effect injection, a contamination prevention device disposed between t

An apparatus and method enabling the injection of fluid media into a plurality of patients is provided, including a fluid supply source providing multiple doses, a metering device for measuring the doses, a pressurizing device to effect injection, a contamination prevention device disposed between the fluid source and the patient and, when desired, an electronic control device to integrate operation of the apparatus and process.

대표청구항 ▼

An apparatus and method enabling the injection of fluid media into a plurality of patients is provided, including a fluid supply source providing multiple doses, a metering device for measuring the doses, a pressurizing device to effect injection, a contamination prevention device disposed between t

An apparatus and method enabling the injection of fluid media into a plurality of patients is provided, including a fluid supply source providing multiple doses, a metering device for measuring the doses, a pressurizing device to effect injection, a contamination prevention device disposed between the fluid source and the patient and, when desired, an electronic control device to integrate operation of the apparatus and process. wherein the interior of the enclosure has a volume of at least about 500 cubic feet.14. The apparatus of claim 1, wherein the layer of magnetically permeable material comprises material with an initial magnetic permeability greater than 4000.15. An apparatus comprising: an enclosure having a wall defining an interior of the enclosure, the wall comprising a layer of a magnetically permeable material, andan innermost layer of an electrically conductive material disposed exteriorly of the layer of the magnetically permeable material; a background-field magnetometer within the enclosure and having a background-field magnetometer output signal; an electrical coil structure within the interior of the enclosure and having an electrical coil input; a controllable electrical current source having a current source output in communication with the electrical coil input, anda current source command signal input; a background-field-reducing feedback controller having a controller input responsive to the background-field magnetometer output signal, anda controller output in communication with the current source command signal input; and a signal magnetometer positioned to detect a magnetic field produced by a source within the enclosure. 16. The apparatus of claim 15, wherein the electrical coil structure includes at least three electrical coils each producing a magnetic field output responsive to a respective electrical coil input and arranged such that output magnetic field vectors of the respective electrical coils are noncollinear, and wherein the current source output includes a separate current source output connected with the electrical coil input of each of the respective electrical coils.17. The apparatus of claim 15, wherein the electrical coil structure includes at least eight electrical coils arranged such that each electrical coil produces a magnetic output field gradient responsive to a respective electrical coil input and arranged such that no two magnetic output field gradients produced are redundant with each other, and wherein the current source output includes a separate current source output connected with the electrical coil input of each of the respective electrical coils.18. The apparatus of claim 15, where in the electrical coil structure includes at least one electrical coil which produces a magnetic output field responsive to a respective electrical coil input and at least one electrical coil which produces a magnetic output field gradient responsive to a respective electrical coil input, and wherein the current source output includes a separate current source output connected with the electrical coil input of each of the respective electrical coils.19. The apparatus of claim 15, wherein the layer of magnetically permeable material comprises mu metal.20. The apparatus of claim 15, wherein the signal magnetometer is a biomagnetometer. 10; US-5928148, 19990700, Wang, 600/420; US-5944023, 19990800, Johnson et al., 128/899; US-6014580, 20000100, Blume et al., 600/424; US-6516213, 20030200, Nevo, 600/424; US-6529766, 20030300, Guendel, 600/427