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Amm, NY
Bruce C. Amm, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20080242974 | METHOD AND APPARATUS TO HYPERPOLARIZE MATERIALS FOR ENHANCED MR TECHNIQUES - A system for polarizing a material to be used in techniques employing magnetic resonance (MR) is provided. The polarizer system includes a cooling chamber having a cryogenic refrigerant therein for use in polarizing a substance. A sorption pump is connected to the cooling chamber to reduce a pressure therein to allow for hyperpolarizing of the sample. The sorption pump is cooled by a refrigeration system to promote molecular adsorption in the sorption pump. The cooling chamber, sorption pump, and refrigeration system are arranged in a closed system. | 10-02-2008 |
| 20110025329 | SYSTEM AND METHOD FOR THERMO-ELECTRIC COOLING OF RF COILS IN AN MR IMAGING SYSTEM - A cooling system for reducing the thermal energy transfer from the heated spots of an RF coil assembly to a patient bore of an MRI system is disclosed. The MRI system includes a plurality of gradient coils positioned about a bore of a magnet, an RF shield formed about an RF space, and an RF coil assembly positioned within the RF space and about the patient bore. The cooling system is positioned within the RF space and includes a plurality of cooling modules configured to reduce an operating temperature of the MRI system. Each of the plurality of cooling modules further includes a thermoelectric cooler thermally coupled to the RF coil and a heat sink thermally coupled to the thermoelectric cooler opposite from the RF coil. The thermoelectric cooler is configured to extract heat from the RF coil when a current is applied to the thermoelectric cooler. | 02-03-2011 |
Bruce Campbell Amm, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20100148779 | TRANSVERSE GRADIENT COIL FOR MRI SYSTEMS AND METHOD FOR MANUFACTURING THE SAME - A transverse gradient coil for an MRI system is provided. The transverse gradient coil comprises a first coil layer; and an insulation layer made of thermoplastic insulation resin which has a thermal conductivity greater than 1.5 W/m·K, the insulation layer having one side bonded to the first coil layer. A method for manufacturing the transverse gradient coil by injection molding or compression molding is also provided. | 06-17-2010 |
| 20100271026 | TRANSVERSELY FOLDED GRADIENT COIL - A gradient coil comprising: a pair of gradient coil units disposed so as to enclose a gradient axis, each gradient coil unit including: a gradient coil substrate with a primary coil section, a shield coil section, and first and second return path sections, the primary coil section disposed between the gradient axis and the shield coil section, the primary coil section configured to produce a magnetic gradient field at the gradient axis when conducting an electrical current; the first return path section foldably connected between the primary coil section and the shield coil section, and the second return path section foldably connected between the shield coil section and the primary coil section such that the gradient coil substrate forms a cylindrical surface having a longitudinal axis substantially aligned with the gradient axis; and a plurality of substantially parallel conductive paths disposed across the cylindrical surface in a direction transverse to the gradient axis. | 10-28-2010 |
Bruce Courtney Campbell Amm, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20090120615 | THERMAL MANAGEMENT SYSTEM FOR COOLING A HEAT GENERATING COMPONENT OF A MAGNETIC RESONANCE IMAGING APPARATUS - A thermal management system for cooling a heat generating component of a Magnetic Resonance Imaging (MRI) apparatus includes at least one heat pipe having a portion disposed proximate the heat generating component, such as a gradient coil and/or RF coil. When heat is removed from the component, a working fluid in a relatively hotter end of the heat pipe vaporizes and travels toward a relatively colder end of the heat pipe. The colder end may be operatively coupled to a heat sink for removing the heat from the colder end and increase the overall efficiency of the system. The heat pipe may be disposed along a horizontal, a vertical direction and/or along a diagonal of the heat generating component. | 05-14-2009 |
| 20090167306 | FOLDED GRADIENT TERMINAL BOARD END CONNECTOR - A folded gradient terminal board end connector includes a multi-layer terminal connection board having a plurality of connection paths and vias configured to provide intercrossing between a plurality of folded gradient coils and further to provide symmetry between the plurality of folded gradient coils without spatial interference between folded portions of the plurality of folded gradient coils to optimize the folded gradient coil efficiency. | 07-02-2009 |
| 20110140695 | FLATTENED GRADIENT COIL FOR MRI SYSTEMS - A gradient coil and an insert gradient coil for a magnetic resonance imaging system include a primary coil. The primary coil includes an upper primary coil portion and a lower primary coil portion, the lower primary coil portion being less curved in cross-section than the upper primary coil portion. The gradient coil also includes a shielding coil disposed outside of the primary coil. The shielding coil includes an upper shielding coil portion and a lower shielding coil portion, the lower shielding coil portion being less curved in cross-section than the upper shielding coil portion. | 06-16-2011 |
Kathleen M. Amm, Cliffton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20100277170 | HEAT PIPE COOLED SUERCONDUCTING MAGNETS WITH CERAMIC COIL FORMS - A system and method for a magnetic resonance (MR) imaging system includes a coil form, at least one magnet positioned about the coil form and configured to generate a magnetic field, at least one gradient coil for manipulating the magnetic field generated by the at least one magnet by way of a gradient field, and a heat pipe thermally connected to the coil form and having a cryogen therein. The MR imaging system also includes a cryocooler connected to the heat pipe to cool the heat pipe and the cryogen, wherein the coil form is comprised of a thermally conductive material in which eddy currents are substantially reduced during operation of the at least one gradient coil. The present invention has been described in terms of the preferred embodiment, and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims. | 11-04-2010 |
Kathleen M. Amm, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20100242500 | THERMAL SWITCH FOR SUPERCONDUCTING MAGNET COOLING SYSTEM - The present invention provides an apparatus and method for automatically disconnecting a cryocooler from a cold mass reservoir of a MR system. A cryocooler thermal link includes a first end plate configured to be thermally connected to a cryocooler and a second end plate configured to be thermally connected to a cold mass. A wall encloses a space between the first and the second end plates, the wall having a first end attached to the first end plate and a second end attached to the second end plate. A working fluid is positioned in the space. | 09-30-2010 |
Kathleen Melanie Amm, Clifton Park, NY US
| Patent application number | Description | Published |
|---|---|---|
| 20100148779 | TRANSVERSE GRADIENT COIL FOR MRI SYSTEMS AND METHOD FOR MANUFACTURING THE SAME - A transverse gradient coil for an MRI system is provided. The transverse gradient coil comprises a first coil layer; and an insulation layer made of thermoplastic insulation resin which has a thermal conductivity greater than 1.5 W/m·K, the insulation layer having one side bonded to the first coil layer. A method for manufacturing the transverse gradient coil by injection molding or compression molding is also provided. | 06-17-2010 |