Vollmers
Hans-Gerd Vollmers, Koeln DE
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20130250607 | Light Device - The present invention provides in one aspect a light device having a light guide. The light guide ( | 09-26-2013 |
Heinz-Peter Vollmers, Wuerzburg DE
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20110027182 | SUBSTANCE FOR OBTAINING HIGHLY EFFECTIVE TUMOR MEDICATIONS AS WELL AS A PROCESS - The invention relates to a substance and a process for obtaining anti-tumor agents. | 02-03-2011 |
Karl Vollmers, Zurich CH
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20100264776 | WIRELESS RESONANT MAGNETIC ACUTATION FOR UNTETHERED MICROROBOTS - The invention concerns a novel magnetic actuator mechanism suitable for use on untethered microrobots. It relies on the interaction of magnetic bodies in an external magnetic field. By an oscillating field, the bodies are driven to oscillatory motion, and the energy stored in the oscillation is harnessed. The untethered wireless microactuator according to the invention comprises a mechanical system with at least two magnetic bodies resiliently connected to one another, wherein the mechanical system is capable of being oscillated, in particular driven to resonance, by an oscillating external magnetic field. The actuation system according to the invention comprises such a microrobot as well as a magnetic field generator with adjustable field direction and oscillation frequency. The actuation method comprises exciting two or more magnetic bodies with an oscillating magnetic field such that they perform mechanical oscillations, and harnessing this energy for propulsion of the device or to fulfill other tasks. | 10-21-2010 |
Karl Vollmers, Saint Paul, MN US
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20100022857 | MAGNETICALLY CONTROLLED WIRELESS OPTICAL OXYGEN SENSOR FOR INTRAOCULAR MEASUREMENTS - A sensor for intraocular measurements moveable within at least one of an vitreous humor of an eye, an aqueous humor of an eye and an intraocular replacement medium. The sensor includes a magnetic body susceptible to magnetic fields and at least one sensor film. | 01-28-2010 |
Karl Vollmers, Minneapolis, MN US
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20130079871 | VASCULAR ELASTANCE - A device includes a balloon and an interface. The balloon has an outer surface and a central lumen aligned on a longitudinal axis. The balloon is configured to receive a compressible fluid. The interface is coupled to the outer surface and has an external surface configured to bond with a tissue. | 03-28-2013 |
20130165964 | ACTIVE PRESSURE CONTROL FOR VASCULAR DISEASE STATES - A system includes a sensor, a controller and an actuator. The sensor is configured to provide a signal corresponding to pressure in a vascular system. The controller is configured to receive the signal and generate an output. The actuator is coupled to the controller and configured to modulate an element of the vascular system based on the pressure. | 06-27-2013 |
20130245665 | SYSTEM AND METHOD FOR REDUCING PULSATILE PRESSURE - A device for reducing pressure within a lumen includes a reservoir structured for holding a fluid therein, an injection port in fluid communication with the reservoir, a compliant body structured to expand and contract upon changes in pressure, and a conduit extending between and fluidly coupling the reservoir and the compliant body. The fluid may be a compressible or a noncom pressible fluid. | 09-19-2013 |
Mark B. Vollmers, W Des Moines, IA US
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20140059993 | MOISTENER COLUMN DOOR COMPRESSION STRUCTURE FOR COTTON HARVESTER ROW UNIT - A row unit for a cotton harvester is disclosed. The cotton harvester is adapted for forward movement through a field to harvest cotton planted in rows in the field. The row unit includes a unit housing defining a row receiving area and a cotton exiting area. A moistener column door is pivotally coupled to the unit housing. A compression structure is coupled to the unit housing and configured to exert a pre-load on the moistener column door, placing the moistener column door in a closed position. The compression structure is configured to yield to a cotton plug pressure that exceeds the pre-load, which pivots the moistener column door to an open position. When the pre-load exceeds the cotton plug pressure, the compression structure is configured to return the moistener column door to the closed position. | 03-06-2014 |