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| Number | Title | Issue Date |
| 5463906 | Interchangeable disposable acoustic for use with an ultrasonic flowmeter, particularly during extracorporeal measurement of blood flow An inexpensive disposable plastic flow body interchangeably flow connects in line a conduit flowing fluid, and also, concurrently, acoustically connects to one or more ultrasonic transducers, so as to serve as an acoustic chamber for use with an ultrasoni... | 11/07/1995 |
| 5440936 | Compact x-cross transducer array for a transit time flowmeter, particularly for use during in-vivo blood flow measurement Multiple, typically four, acoustic transducers of a time delay acoustic flowmeter are arrayed in a X-cross, crisscross, folded geometry so as to establish a lengthy multiple-leg, typically a two-leg, acoustic path within a compact volume. An ultrasonic si... | 08/15/1995 |
| 5438996 | Ambulatory, ultrasonic transit time, real-time, cervical effacement and dilatation monitor with disposable probes Preferred transducers in the substantial shapes of a three-dimensional bodies, normally spheres or cylinders, emit ultrasound omni-directionally. The transducers are secured to the wall of the cervix uteri of human female, preferably by a barb or corkscre... | 08/08/1995 |
| 5363848 | Variable illumination of a lumen for acoustic blood flow measurement In an acoustic flowmeter of the transit time or Doppler type the electro/acoustic, and/or acousto/electric, gain of one or more elongate acoustic transducers is varied spatially along the length of the transducer. When the transducer(s) are situated acros... | 11/15/1994 |
| 5253649 | Process for the measurement of blood circulation by means of non-radioactive microspheres An improved process for the measurement of blood circulation by means of colored microspheres is presented, which process replaces the previous counting procedure when using colored microspheres by a rapidly reproducible measurement method. This avoids th... | 10/19/1993 |
| 5230343 | Colored microspheres for measuring and tracing fluid mixing and flow Microspheres labeled with a dye for which the absorption spectra is known permit the measurement of blood flows, particularly regional myocardial blood flow (RMBF), without radiation safety concerns and radioactive waste disposal problems. Polystyrene sph... | 07/27/1993 |
