Abstract: A hemofilter system. In one embodiment, the hemofilter system includes a container having a first surface, a second surface, and one or more wall surfaces, the first surface, the second surface and the one or more wall surfaces defining a volume; an input port in fluid communication with the first surface; an output port in fluid communication with the second surface; a filter bed comprising a plurality of planar magnetic meshes stacked in close juxtaposition and positioned within the container volume and coplanar with the first and second surfaces; a first magnet positioned on a first surface of the container; a second magnet positioned on the second surface of the container; a first input conduit in fluid communication with the input port; and a first output conduit in fluid communication with the output port. In another embodiment, the hemofilter system includes a pump in the input conduit.

Abstract: A magnetic marker for marking a site in tissue in the body. In one embodiment, the marker comprises a magnetic metallic glass. In another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 9. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 6. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 3.

Abstract: A magnetic marker for marking a site in tissue in the body. In one embodiment, the marker comprises a magnetic metallic glass. In another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 9. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 6. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 3.

Abstract: A hemofilter system. In one embodiment, the hemofilter system includes a container having a first surface, a second surface, and one or more wall surfaces, the first surface, the second surface and the one or more wall surfaces defining a volume; an input port in fluid communication with the first surface; an output port in fluid communication with the second surface; a filter bed comprising a plurality of planar magnetic meshes stacked in close juxtaposition and positioned within the container volume and coplanar with the first and second surfaces; a first magnet positioned on a first surface of the container; a second magnet positioned on the second surface of the container; a first input conduit in fluid communication with the input port; and a first output conduit in fluid communication with the output port. In another embodiment, the hemofilter system includes a pump in the input conduit.

Abstract: A molecular mixing system. In one embodiment, the molecular mixing system includes a motorized turntable; a speed controller to control the rotational speed of the motorized turntable; a plurality of magnets arranged in a first Halbach array, the first Halbach array located on the motorized turntable and concentric to the axis of the motorized turntable; and a sample conduit having an input port and an output port and having an outer wall defining a lumen, the sample conduit positioned within and concentric with the first Halbach array.

Abstract: A magnetic marker for marking a site in tissue in the body. In one embodiment, the marker comprises a magnetic metallic glass. In another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 9. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 6. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 3.

Abstract: A magnetic marker for marking a site in tissue in the body. In one embodiment, the marker comprises a magnetic metallic glass. In another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 9. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 6. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 3.

Abstract: A hemofilter system. In one embodiment, the hemofilter system includes a container having a first surface, a second surface, and one or more wall surfaces, the first surface, the second surface and the one or more wall surfaces defining a volume; an input port in fluid communication with the first surface; an output port in fluid communication with the second surface; a filter bed comprising a plurality of planar magnetic meshes stacked in close juxtaposition and positioned within the container volume and coplanar with the first and second surfaces; a first magnet positioned on a first surface of the container; a second magnet positioned on the second surface of the container; a first input conduit in fluid communication with the input port; and a first output conduit in fluid communication with the output port. In another embodiment, the hemofilter system includes a pump in the input conduit.

Abstract: A hemofilter system. In one embodiment, the hemofilter system includes a container having a first surface, a second surface, and one or more wall surfaces, the first surface, the second surface and the one or more wall surfaces defining a volume; an input port in fluid communication with the first surface; an output port in fluid communication with the second surface; a filter bed comprising a plurality of planar magnetic meshes stacked in close juxtaposition and positioned within the container volume and coplanar with the first and second surfaces; a first magnet positioned on a first surface of the container; a second magnet positioned on the second surface of the container; a first input conduit in fluid communication with the input port; and a first output conduit in fluid communication with the output port. In another embodiment, the hemofilter system includes a pump in the input conduit.

Abstract: A method and apparatus for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the method comprises the steps of: removing a biopsy sample from the tissue of interest; placing a magnetic marker at the biopsy site; performing a pathology analysis of the biopsy sample; and if the pathology analysis indicates that the tissue of interest should be removed, locating the tissue for surgery using a magnetic detection probe. In one embodiment, the marker comprises magnetic nanoparticles in a bioabsorbable matrix. A system for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the system includes a magnetic marker and magnetic detection probe system.

Abstract: A molecular mixing system. In one embodiment, the molecular mixing system includes a motorized turntable; a speed controller to control the rotational speed of the motorized turntable; a plurality of magnets arranged in a first Halbach array, the first Halbach array located on the motorized turntable and concentric to the axis of the motorized turntable; and a sample conduit having an input port and an output port and having an outer wall defining a lumen, the sample conduit positioned within and concentric with the first Halbach array.

Abstract: A hemofilter system. In one embodiment, the hemofilter system includes a container having a first surface, a second surface, and one or more wall surfaces, the first surface, the second surface and the one or more wall surfaces defining a volume; an input port in fluid communication with the first surface; an output port in fluid communication with the second surface; a filter bed comprising a plurality of planar magnetic meshes stacked in close juxtaposition and positioned within the container volume and coplanar with the first and second surfaces; a first magnet positioned on a first surface of the container; a second magnet positioned on the second surface of the container; a first input conduit in fluid communication with the input port; and a first output conduit in fluid communication with the output port. In another embodiment, the hemofilter system includes a pump in the input conduit.

Abstract: A magnetic marker for marking a site in tissue in the body. In one embodiment, the marker comprises a magnetic metallic glass. In another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 9. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 6. In yet another embodiment, the marker is in a non-spherical configuration having an anisotropy ratio less than 3.

Abstract: A system and method for locating magnetic material. In one embodiment the system includes a magnetic probe; a power module in electrical communication with the magnetic probe to supply current to the magnetic probe; a sense module in electrical communication with the magnetic probe to receive signals from the magnetic probe; and a processing module in electrical communication with the power module and the sense module. The processing module generates a waveform that controls the supply of current from the power module and receives a signal from the sense module that indicates the presence of magnetic material. The magnetic probe is constructed from a material having a coefficient of thermal expansion of substantially 10?6/° C. or less and a Young's modulus of substantially 50 GPa or greater. In one embodiment magnetic nanoparticles collect in the lymph nodes. In one embodiment the particles have a mean hydrodynamic diameter of between 5-200 nm.

Abstract: The invention provides a method of preparing a suspension of microbubbles for use in a carrier liquid, wherein the microbubbles have a gas core and a liquid shell, said liquid shell comprising magnetic nanoparticles, and wherein the microbubbles satisfy the following conditions: (i) the force due to buoyancy (FBW) of the microbubble in the carrier liquid is greater than the weight (W) of the microbubble; (ii) the magnetic force (FM) on the microbubble due to a magnetic field applied to the carrier liquid is greater than the combined weight (W) and force due to buoyancy (FBW) of the microbubble; (iii) said magnetic force (FM) on the microbubble is greater than the force due to viscous drag (FD) on the microbubble due to flow of the carrier liquid; and (iv) the scattering cross section (?scat) of the microbubble to ultrasound allows the microbubble to be detectable and rupturable on exposure to ultrasound.

Abstract: A method and apparatus for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the method comprises the steps of: removing a biopsy sample from the tissue of interest; placing a magnetic marker at the biopsy site; performing a pathology analysis of the biopsy sample; and if the pathology analysis indicates that the tissue of interest should be removed, locating the tissue for surgery using a magnetic detection probe. In one embodiment, the marker comprises magnetic nanoparticles in a bioabsorbable matrix. A system for preparing tissue of interest in a patient for possible excision by surgery. In one embodiment, the system includes a magnetic marker and magnetic detection probe system.

Abstract: Apparatus for determining magnetic properties of materials comprises a portable probe, an equipment trolley holding cryogenics and electronics and connecting cables. The probe comprises a drive coil and a correction coil, the drive coil being disposed symmetrically with respect to an inner second-order gradiometer sensor coil. Electrical connectors in the form of 2-metre long Belden (1192A) microphone cables are used to connect the apparatus on the equipment trolley to the drive coil, the correction coil and the sensor coil. The drive coil is driven so as to generate a sinusoidally varying magnetic field. The electronics comprise a flux-locked loop, a SQUID controller, a data acquisition module, which captures and processes the signals and computer. A liquid-nitrogen dewar is supported on the equipment trolley and houses a sensitive SQUID detector and a transfer coil made from copper.

Abstract: Apparatus for determining magnetic properties of materials comprises a portable probe (1), an equipment trolley (2) holding cryogenics and electronics and connecting cables (3). The probe (1) comprises a drive coil (4) and a correction coil (5), the drive coil (4) being disposed symmetrically with respect to an inner second-order gradiometer sensor coil (8). Electrical connectors in the form of 2-meter long Belden (1192A) microphone cables (3) are used to connect the apparatus on the equipment trolley (2) to the drive coil (4), the correction coil (5) and the sensor coil (8). The drive coil (4) is driven so as to generate a sinusoidally varying magnetic field. The electronics comprise a flux-locked loop (9), a SQUID controller (10), a data acquisition module (11), which captures and processes the signals and a computer (12). A liquid-nitrogen dewar (13) is supported on the equipment trolley (2) and houses a sensitive SQUID detector (14) and a transfer coil (15) made from copper.

Abstract: An apparatus for driving a resonant circuit is disclosed.

Abstract: The invention provides a method of preparing a suspension of microbubbles for use in a carrier liquid, wherein the microbubbles have a gas core and a liquid shell, said liquid shell comprising magnetic nanoparticles, and wherein the microbubbles satisfy the following conditions: (i) the force due to buoyancy (FBW) of the microbubble in the carrier liquid is greater than the weight (W) of the microbubble; (ii) the magnetic force (FM) on the microbubble due to a magnetic field applied to the carrier liquid is greater than the combined weight (W) and force due to buoyancy (FBW) of the microbubble; (iii) said magnetic force (FM) on the microbubble is greater than the force due to viscous drag (FD) on the microbubble due to flow of the carrier liquid; and (iv) the scattering cross section (?scat) of the microbubble to ultrasound allows the microbubble to be detectable and rupturable on exposure to ultrasound.