Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 5094241 | Apparatus for imaging the anatomy The present invention pertains to a fiducial implant for the human body that is detectable by an imaging system. The invention is comprised of a first portion and a second portion. The first portion is configured to be detected by an imaging system when p... | 03/10/1992 |
| 5070876 | Flow-independent magnetic resonance projection angiography The performance of current, flow-based sequences for imaging vasculature using MR is severely restricted in regions with inherently slow flow. We address this problem with a flow-independent imaging method. Specifically, we generate projection images of b... | 12/10/1991 |
| 5059197 | Lesion location device A lesion location device suitable for marking a lesion in breast tissue comprises a wire, of which the first portion which has been bent to form a second portion at an obtuse or acute angle to the first portion, a 180° bend and a third portion which exte... | 10/22/1991 |
| 5056524 | Image processing method and system for radiological diagnostics A digital mask image is obtained by emitting radiation onto a subject before a contrast medium is injected in a blood vessel, and digital mask image data corresponding to the mask image is stored in a first image memory. A digital contrast image is obtain... | 10/15/1991 |
| 5050605 | Magnetic resonance imaging antennas with spiral coils and imaging methods employing the same An antenna structure for magnetic resonance imaging includes a plurality of spiral wound, generally planar coils spaced axially from one another. The plural coils may be mounted on a rigid frame in the desired relative positions and the subject may be ins... | 09/24/1991 |
| 5046499 | Method for myocardial infarct risk assessment The invention pertains to a method quantitative localization of antimyosin uptake in the myocardium of a patient as an indication of myocardial infarction from a plurality of planar projections displayed simultaneously. The invention also pertains to a me... | 09/10/1991 |
| 5045051 | Leak detector A system for detecting leakage in a device having a fluid-driven membrane inserted in the body, for example, a balloon pump, includes a fluid drive circuit with a moisture remover having a capacity just sufficient to remove water vapor entering the circui... | 09/03/1991 |
| 5042503 | Process and apparatus for extended, non-invasive monitoring of uterine contractions A process and apparatus is disclosed for effective home monitoring of uterine contractions of a pregnant woman, in order to provide early warning signs of possible premature birth. Using a transducer of known type, uterine contractions are monitored conti... | 08/27/1991 |
| 5042485 | Cine mr imaging method and apparatus In order to image on a time axis a moving object such as a coronary artery which changes in position dynamically along with the heart, the position to which the object has moved is measured and then the position of the object to be excited by a radio freq... | 08/27/1991 |
| 5042484 | Air puff type tonometer An air puff type tonometer having a source for projecting a light beam toward the cornea of an eye to be tested, an alignment sensor for receiving the light beam after reflection from the cornea and providing a corresponding received light signal, a devic... | 08/27/1991 |
| 5040537 | Method and apparatus for the measurement and medical treatment using an ultrasonic wave An ultrasonic measuring apparatus and method operating as an ultrasonic echocardiograph and a doppler blood flow speed meter by creating numerous microbubbles as a contrast medium or reflector only in an intended blood vessel. The apparatus comprises an i... | 08/20/1991 |
| 5041121 | Shock wave generator A shock wave generator for the fragmentation of concrements, having a light-pulse-transmiting light guide and a converter arranged at the distal light guide end and having an ionization surface which, when a light pulse impinges, initiates a shock wave in... | 08/20/1991 |
| 5040539 | Pulse oximeter for diagnosis of dental pulp pathology A non-invasive device which determines the pulp oxygenation level of a tooth and the vitality of a tooth using multiple-wavelength optical plethysmography. A sensor is shaped to be mounted on a tooth and circuitry for processing a signal from the sensor a... | 08/20/1991 |
| 5038756 | Needle interface boot for ultrasonic surgical instrument A needle interface boot for use in an ultrasonic ophthalmic surgical instrument of the type incorporating coaxial irrigation and aspiration functions which comprises a conically-shaped hollow instrument. The boot is made from a compliant silicone or plast... | 08/13/1991 |
| 5036853 | Physiological probe A method of, and apparatus for, identifying human tissue which is suspected of being physiologically changed as a result of commencement of neoplastic activity or pre-activity, is disclosed. The tissue is preferably irradiated with light at wavelengths of... | 08/06/1991 |
| 5033456 | Acoustical lens assembly for focusing ultrasonic energy An acoustical lens for focusing ultrasonic energy having a transducer, a curved focussing lens and a voltage generator coupled with the transducer. The transducer is comprised of an array of piezoelectric crystal elements. The focussing lens has a concave... | 07/23/1991 |
| 5031620 | Image processing apparatus An image processing apparatus having an image output device for delivering a mask image signal and a contrast image signal corresponding to a mask image and contrast image, and having a subtraction processor for out-putting a subtraction image signal resu... | 07/16/1991 |
| 5030194 | Method and apparatus for effecting radioactive therapy in an animal body A first radioactive source assembly disposed in a first source channel and a guide tube connected to the source channel and having a second end which is disposable in the animal body. A first source assembly transport thread connects the first source asse... | 07/09/1991 |
| 5027817 | Statistical based display for positron emission tomography scans In a medical imaging system a patient is injected with a radiopharmaceutical spontaneously emitting positrons and a PET (Positron Emission Tomography) scan is taken along parallel planes of a portion of the subject's body to produce a slice image composed... | 07/02/1991 |
| 5025793 | Finger blood pressure measurement system A system for blood pressure measurement ascertains blood pressure indirectly by the oscillometric method at the user's index finger. Finger measurement allows the system to be smaller and easier to use than systems using conventional upper arm measurement... | 06/25/1991 |
| 5025789 | Shock wave source having a central ultrasound locating system A shock wave source for use in lithotripsy has an electromagnetic shock wave source with the ultrasound head of an ultrasound locating system centrally disposed within the source. During locating of a calculus to be disintegrated, at least one surface nor... | 06/25/1991 |
| 5024226 | Epidural oxygen sensor A sensor for measuring the oxygen availability of blood flow within the skull is described. In a first embodiment the sensor comprises a photodetector and a pair of light emitting diodes surface mounted near the end of a length of flexible printed wiring.... | 06/18/1991 |
| 5024229 | Resonators for magnetic resonance imaging Single-turn loop-gap solenoidal resonators for establishing RF fields (B1) transverse to the static B0 field of a magnetic resonance imaging system. Tubular forms of dielectric (plastic) material have conductive foil bands attached t... | 06/18/1991 |
| 5020541 | Apparatus for sensing lead and transthoracic impedances A method and apparatus for use with medical electrode systems that sense the integrity of lead connections and patient transthoracic impedance is provided. In an ECG electrode application, a carrier circuit (12) produces two carrier signals (SC1 | 06/04/1991 |
| 5018508 | System and method using chemicals and ultrasound or ultrasound alone to replace more conventional surgery A method for rendering a gallbladder dysfunctional without surgical removal comprises the steps of infusing the gallbladder with methyl-tert-butyl ether (MTBE), then, while the gallbladder is so infused, irradiating the gallbladder with an ultrasound beam... | 05/28/1991 |
| 5016639 | Method and apparatus for imaging the anatomy The present invention pertains to a fiducial implant for the human body that is detectable by an imaging system. The invention is comprised of a first portion and a second portion. The first portion is configured to be detected by an imaging system when p... | 05/21/1991 |
| 5016638 | Vibration control in NMR magnet structures A medical NMR scanner adapted to be supported on the floor of a building or other structure by vibration limiting supports is disclosed. The scanner includes a frame defining a patient-receiving space adapted to receive a human body. It also includes a pa... | 05/21/1991 |
| 5014686 | Phantom kidney stone system The phantom kidney stone system for use with a commercial lithotripsy system includes a phantom kidney stone which simulates a human kidney stone and is suspended into the field of operation of the commerical lithotripsy system. The system also includes a... | 05/14/1991 |
| 5007425 | Patient and coil support structure for magnetic resonance imagers A support stand (B) adjustably supports either (i) a localized coil assembly or (ii) a portion of a patient within an image region of a magnetic resonance imager (A). A vertical member (42) extends upward from a base (40). A follower (44) is selectively p... | 04/16/1991 |
| 5005579 | Apparatus for spatial location and destruction of objects inside the body by means of ultrasound Apparatus for spatial location and destruction of an object inside a patient's body by means of ultrasound transmitted to the patient's body via a coupling fluid, the apparatus comprises a focusing transducer for generating the ultrasound piezoelectricall... | 04/09/1991 |
| 5003965 | Medical device for ultrasonic treatment of living tissue and/or cells The invention contemplates an ultrasonic body treatment system wherein a body applicator is self-contained unit with its own radio-frequency oscillator/driver, factory-pretuned to its own transducer. A remote-control unit supplies control signals via opti... | 04/02/1991 |
| 5000182 | Cardiac synchronization magnetic resonance imaging A cardiac monitor (62, 64) monitors the cardiac cycles of a patient in an examination region (10). Each cardiac cycle includes an R-wave (40) at the beginning of the end-diastole. A conditioning pulse trigger (74) enables a preconditioning pulse control (... | 03/19/1991 |
| 4998976 | Permanent magnet arrangement A permanent magnet assembly used for creating a uniform magnetic field across a portion of an air gap has a permanent magnet grouping, including a first, principal magnet, a pole piece contacting said principal magnet,and a set of auxiliary magnets extend... | 03/12/1991 |
| 4996990 | Air-puff tonometer An air-puff tonometer, in which a puff of compressed air is blown out through a nozzle (N) toward the cornea of a subject eye (H), said compressed air being produced by energizing with an electric current a piston drive, which when thus driven compresses ... | 03/05/1991 |
| 4993425 | Adapter assembly for use with a cranial biosensor To enable conventional adapter assemblies used to accurately position a removable biosensor, to be used for measurements in the interior of the skull of small children, the disclosed is a support sleeve which ensures an axial length compensation, taking i... | 02/19/1991 |
| 4991579 | Method and apparatus for providing related images over time of a portion of the anatomy using fiducial implants The present invention pertains to a fiducial implant for the human body that is detectable by an imaging system. The invention is comprised of a first portion and a second portion. The first portion is configured to be detected by an imaging system when p... | 02/12/1991 |
| 4989608 | Device construction and method facilitating magnetic resonance imaging of foreign objects in a body Device construction facilitating the visibility of a device when inserted into a body being subjected to magnetic resonance imaging having a member adapted to be inserted into the body. The member carries material exhibiting a characteristic under magneti... | 02/05/1991 |
| 4986272 | NMR imaging with variable repetition An NMR system acquires data by performing a scan using a spin echo pulse sequence. An image is produced from the acquired data using a 2DFT reconstruction method. During the scan the echo time (TE) or the repetition time (TR) is altered as a function of p... | 01/22/1991 |
| 4986259 | Apparatus and method for disintegrating calculus This invention relates to an apparatus for disintegrating calculus having a main ultrasonic transducer for emitting a high power ultrasonic shock wave to disintegrate a kidney stone in a patient, and for emitting a weak ultrasonic shock wave, before emitt... | 01/22/1991 |
| 4984565 | Extracorporeal lithotriptor with x-ray locating system An extracorporeal lithotriptor has a shock wave head which includes a shock wave generator which generates shock waves to disintegrate calculi in situ, and components for coupling the generated shock wave to the patient. The lithotriptor also includes an ... | 01/15/1991 |
