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| Number | Title | Issue Date |
| 7835500 | Multi-phase registration of 2-D X-ray images to 3-D volume studies A method for registering 2-D radiographic images to 3-D volume studies includes generating digitally reconstructed radiographs (DRRs) from a 3-D volume study. The DRR's are used as reference images to register a patient's position during image-guided radiosurgery. S... | 11/16/2010 |
| 7190765 | Bearing temperature and focal spot position controlled anode for a CT system An anode assembly (50) includes a thermally conductive bearing encasement (52) covering a portion of a bearing (64). An anode (56) rotates on the bearing (64) and has a target (58) with an associated focal spot (60). ... | 03/13/2007 |
| 7127035 | Rotary anode type X-ray tube An anode target is roratably supported by a rotating mechanism having a rotary body and a staionary body. A fitted portion between the rotary body and the stationary body is formed of bearing areas having dynamic pressure type sliding bearings and a non-bearing area... | 10/24/2006 |
| 7050542 | Device for generating x-rays having a heat absorbing member The invention relates to a device for generating X-rays (41). The device comprises a source (5) for generating an electron beam (35), and a carrier (7) which is rotatable about an axis of rotation (15) and which is provided with a ... | 05/23/2006 |
| 7004635 | Lubricated ball bearings A lubricated ball bearing for use in ball bearing sets is disclosed. The lubricated ball bearing features a lubricating coating applied to its outer surface. The lubricating coating preferably comprises silver, and enables the ball bearing to be utilized in bearing ... | 02/28/2006 |
| 6973162 | MR/X-ray scanner having rotatable anode A hybrid MR/x-ray scanner is disclosed that allows for the acquisition of x-ray as well as MR data in a single exam without requiring patient repositioning. As an MR scanner, the hybrid system is capable of providing images with soft tissue contrast, excellent 3D vi... | 12/06/2005 |
| 6925152 | Target attachment assembly An x-ray tube target assembly 16 is provided. The assembly 16 includes a target disc element 18 having a target bore 22. A target shaft 20 transmits rotational drive to the target disc element 18. The target shaft 20 ... | 08/02/2005 |
| 6735281 | Rotating anode for X-ray tube using interference fit A method for assembling a rotating X-ray tube, the X-ray tube having a cathode for emitting electrons, and a rotor and a bearing assembly for facilitating rotation of an anode. The method includes using an interference fit assembly between the bearing assembly and t... | 05/11/2004 |
| 6445770 | Thermally isolated x-ray tube bearing A high energy x-ray tube includes an evacuated chamber (12) containing a rotor (34) which rotates an anode (10) in the path of a stream of electrons (A) to generate an x-rays (B) and heat. The rotor includes a bearing shaft (54, 80, 122) connected to the ... | 09/03/2002 |
| 6442316 | Stress sensor based on periodically inserted color-changing tactile films to detect mishandling of fiber optic cables The present invention is a fiber optic cable which uses pressure sensitive films or tactile films in order to detect areas on a fiber optic cable where excessive loads have been applied or experienced. In the present invention, a plurality of strips of ta... | 08/27/2002 |
| 6125169 | Target integral heat shield for x-ray tubes An x-ray tube includes an envelope defining an evacuated chamber in which an anode assembly is rotatably mounted to a bearing assembly and interacts with a cathode assembly for production of x-rays. The x-ray tube further includes a heat shield disposed i... | 09/26/2000 |
| 6002745 | X-ray tube target assembly with integral heat shields A graphite-backed metallic x-ray tube target assembly has a rotary shaft which passes through the central opening of the annular graphite substrate and is secured to the metallic disk-shaped target. In order to protect the shaft from heat radiated from th... | 12/14/1999 |
| 5652778 | Cooling X-ray tube An X-ray tube includes a housing containing an anode target having a target shaft supported in the housing by a bearing. The target is rotated, and a cathode emits an electron beam against the target to create X-rays which are discharged from the tube thr... | 07/29/1997 |
| 5553114 | Emissive coating for X-ray tube rotors An improved high performance x-ray system having a rotating anode therein which includes an improved coating for the x-ray tube rotor. The surface of the x-ray tube rotor is coated with a ductile, metal coating, preferably iron, having a thickness of abou... | 09/03/1996 |
| 5548628 | Target/rotor connection for use in x-ray tube rotating anode assemblies An improved high performance x-ray system having a rotating anode therein which includes an improved target/stem assembly comprising a metallic target and a large bore, thin-walled tubular metal stem which, when connected to a rotor body assembly, provide... | 08/20/1996 |
| 5500885 | Mounting assembly for an axle in a housing A mounting part for mounting an end of an axle on a projection of a housing, such as an axle in a vacuum-tight housing of a rotatable anode, is characterized by a sleeve section which can have radial play during assembly and engages a clamp arrangement to... | 03/19/1996 |
| 5224142 | Rotary-anode type X-ray tube A rotary-anode X-ray tube having a rotor, a stationary shaft, and a sliding bearing connecting the rotor and the stationary shaft, forming a gap filled with liquid metal lubricant. The rotor has a first rotary member supporting an anode target and a secon... | 06/29/1993 |
| 5222116 | Metallic alloy for X-ray target An X-ray tube anode which is composed of a refractory metal having a focal track thereon with the refractory metal including tantalum, hafnium, zirconium and carbon in a minor amount and molybdenum in a major amount. The anode has improved high temperatur... | 06/22/1993 |
| 4741011 | X-ray tube comprising an anode disc which is at least partly made of pyrolytic graphite A basic body for an anode disc is provided with laminations which are situated at a short distance from one another. Pyrolytic graphite is provided in the narrow intermediate spaces between the laminations by deposition of carbon from the gaseous state. B... | 04/26/1988 |
| 4715055 | Composite rotary anode for X-ray tube and process for preparing the composite A method for the diffusion bonding of a graphite member to a metallic surface of molybdenum, molybdenum alloy, tungsten or tungsten alloy as part of a composite rotary anode for an X-ray tube is set forth. In the completed structure a crack-free compound ... | 12/22/1987 |
| 4689810 | Composite rotary anode for X-ray tube and process for preparing the composite Methods for the diffusion bonding of a graphite member to a metallic surface as part of a composite rotary anode for an X-ray tube are set forth. The preferred joint for the composite is made by using a layer of palladium in combination with a layer of me... | 08/25/1987 |
| 4641334 | Composite rotary anode for X-ray tube and process for preparing the composite A method for the diffusion bonding of a graphite member to a metallic surface as part of a composite rotary anode for an X-ray tube is set forth. In the completed structure a compound laminate separating and metallurgically bonded to the graphite member a... | 02/03/1987 |
| 4520496 | Rotary-anode X-ray tube The invention relates to an anode disc for a rotary-anode X-ray tube which consists of a rotationally-symmetrical body of molybdenum and a corresponding body of graphite. The connection zone between the two bodies is smaller than the inner diameter of the... | 05/28/1985 |
| 4393511 | Outer rotation bearing for x-ray tube An improved rotating anode x-ray tube having front and rear bearings supporting a tubular member attached to the rotating anode for rotation about a stationary stem member. The front bearing is modified by providing clearance between its retainer and the ... | 07/12/1983 |
| 4188559 | Rotary anode X-ray tube A rotary anode X-ray tube capable of operating at very high voltages of several hundred thousand volts. The rotor and the stator of the motor for the rotary anode are electrically connected to the anode which is itself raised to a positive DC potential, w... | 02/12/1980 |
| 4187442 | Rotating anode X-ray tube with improved thermal capacity A low thermally conductive columbium metal stem has a heavy refractory metal x-ray target disk fastened to one end. A high thermal conductivity rotor hub comprising a cup-shaped element is fastened to the other end of the stem and the rotor hub is fastene... | 02/05/1980 |
| 4144471 | Rotating anode X-ray tube The invention relates to a rotating-anode X-ray tube with increased continuous loadability. The anode comprises a plurality of concentrically disposed hollow cylindrical bodies, which are connected to each other at their end faces in such a way that a mea... | 03/13/1979 |
| 4115718 | Rotary-anode X-ray tube In rotary anodes which are journalled on two sides a problem occurs, notably as regards the bearing which is arranged on the side of the anode disc which is remote from the rotor. The problem involves excessive discharge of heat via the shaft and the bear... | 09/19/1978 |
| 4097759 | X-ray tube An X-ray tube includes a rotor body having an outer sleeve of copper and an inner sleeve of steel, the two sleeves being joined by brazing. A black coating is applied to the outer surface of the copper sleeve and the inner surface of the steel sleeve, as ... | 06/27/1978 |
| 4063124 | Rotating anode for X-ray tubes A rotating anode assembly for an X-ray tube wherein the anode plate is connected with the shaft of the rotor by an axial projection disposed on the rear surface of such plate. The axial projection is shrink-fitted into the end of such shaft.... | 12/13/1977 |
| 3956653 | Rotating anode X-ray tube An X-ray tube is disclosed having a cathode and rotating anode located within a glass envelope. The rotating anode comprises an annular disc forming the target area. The disc is integrally connected to a stem which in turn is connected to a hollow cylindr... | 05/11/1976 |
| 3942059 | High power X-ray tube An X-ray tube with a rotating, motor-driven anode made up from a disc of graphite covered on a major portion of its convex surface which is turned away from its axis of rotation by a layer of an X-ray emissive refractory metal or alloy which has a much lo... | 03/02/1976 |
