摘要:
Disclosed is an electromagnetic coil system for use during transcranial or transdermal stimulation procedures, in which an electrically conductive coil wraps around a magnetic core at an oblique wrapping angle to provide a more directed focal spot size at a given depth inside of, for example, a patient's body. In certain configurations, the electrically conductive coil may be adjustable with respect to the magnetic core, such that the wrapping angle of the electrically conductive coil may be modified to, in turn, adjust the focal spot size of the induced electric field generated by the system as may desired to concentrate the field at a particularly desired location.
摘要:
A hemostatic tissue sealant sponge and a spray for acute wounds are disclosed. The sponge comprises hydrophobically modified polymers that anchor themselves within the membrane of cells in the vicinity of the wound. The seal is strong enough to substantially prevent the loss of blood inside the boundaries of the sponge, yet weak enough to substantially prevent damage to newly formed tissue upon recovery and subsequent removal of the sponge. In examples, the polymers inherently prevent microbial infections and are suitable for oxygen transfer required during normal wound metabolism. The spray comprises hydrophobically modified polymers that form solid gel networks with blood cells to create a physical clotting mechanism to prevent loss of blood. In an example, the spray further comprises at least one reagent that increases the mechanical integrity of the clot. In another example, the reagent prevents microbial infection of the wound.
摘要:
Provided are compositions comprising linked diaryl compounds that possess anticancer properties. Methods of use are also disclosed herein. The method comprises administering an effective amount of a compound described herein to an individual in need thereof.
摘要:
Methods and systems to control magnetic fields and magnetic field induced currents, and to provide stimulations within a patient's body, e.g.: deep brain stimulation, in a non-invasive manner and with greater focus and control than has been afforded by prior known methods and systems. An array of magnetic coils is provided and positionable about a portion of a patient's body, and are configured to create a small region of a magnetic hole, or configured to create a small region of concentrated magnetic field strength, or their combination, and at depths within the patient's body in a focused region and sparing the surrounding tissues of the focused region, that have previously not been receptive to non-invasive TMS methods, which are either focused but can affect only the surface and shadow areas, or that can reach certain depths but by doing so only through affecting large surface areas and deep tissue areas.
摘要:
A method and apparatus are provided for enhancing a navigational efficiency of a virtual workstation. The method includes receiving a design space describing a desired arrangement of virtual monitors. The method further includes receiving data associated with head movement of a user wearing a virtual reality headset. The method further includes determining a movement of a view space over the design space where the view space encompasses only a portion of the design space. The view space movement is based on the head movement such that a ratio of the view space movement to the head movement is in a range comprising values other than unity. The method also includes moving the view space based on the determined movement of the view space and presenting on the virtual reality headset the portion of the design space within the view space.
摘要:
The present invention provides for monodispersed dendrimers having a core, branches and periphery ends, wherein the number of branches increases exponentially from the core to the periphery end and the length of the branches increases exponentially from the periphery end to the core, thereby providing for attachment of chemical species at the periphery ends without exhibiting steric hindrance.
摘要:
A hemostatic tissue sealant sponge and a spray for acute wounds are disclosed. The sponge comprises hydrophobically modified polymers that anchor themselves within the membrane of cells in the vicinity of the wound. The seal is strong enough to substantially prevent the loss of blood inside the boundaries of the sponge, yet weak enough to substantially prevent damage to newly formed tissue upon recovery and subsequent removal of the sponge. In examples, the polymers inherently prevent microbial infections and are suitable for oxygen transfer required during normal wound metabolism. The spray comprises hydrophobically modified polymers that form solid gel networks with blood cells to create a physical clotting mechanism to prevent loss of blood. In an example, the spray further comprises at least one reagent that increases the mechanical integrity of the clot. In another example, the reagent prevents microbial infection of the wound.
摘要:
A motion sensor applicable to medical procedures includes a source of light with a wavelength bandwidth and an optical detector. A first optical coupler terminates in a first probe tip and couples the light into the first probe tip. A second optical coupler terminates in a second probe tip and directs onto the detector scattered light returning through the second probe tip. A presentation device outputs a signal that indicates motion in a target volume of a sample in a vicinity of the probe tips based on a Doppler shift of the scattered light. The volume depends on coherence distance determined by the bandwidth. In variations, the first and second tips are the same tip, a multimode fiber is included, the bandwidth is between 0.1% and 5% of a center wavelength, or the presentation device is a speaker, or some combination.
摘要:
The present invention provides devices for treating functional mitral regurgitation and methods of use thereof. The devices translocate a subject's mitral valve in an apical direction. The devices thereby treat mitral regurgitation while preserving a subject's original mitral valve and chordae tendinae.
摘要:
The present invention provides devices for treating functional mitral regurgitation and methods of use thereof. The devices translocate a subject's mitral valve in an apical direction. The devices thereby treat mitral regurgitation while preserving a subject's original mitral valve and chordae tendinae.