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746results about How to "Prevent short-circuiting" patented technology

Multielectrode electrosurgical instrument

An improved electrosurgical instrument and method is disclosed for simplifying making incisions and other treatments using electrosurgery. The electrosurgical instrument comprises a body having more than two electrodes with at least two electrodes having alternating current power supplied to them such that they comprise a bipolar alternating current configuration and employ a means other than electrode spacing, composition, or geometry for reducing or preventing accumulation of eschar that would otherwise form a short circuit current path and interfere with obtaining a predetermined surgical effect. In one aspect, such means for reducing or preventing eschar accumulation consists of at least one other electrode having a direct current voltage between it and at least one of the two electrodes forming the alternating current bipolar configuration. In another aspect of the invention two or more pairs of alternating current electrodes comprising bipolar electrodes are powered with alternating current having a nonzero RMS voltage sufficient to at least reduce eschar accumulations on one electrode or induce electrolysis of at least one component of a medium surrounding at least one pair of bipolar electrodes. The electrodes are separated from each other using electrically insulating materials such that electric current does not flow between at least two of the bipolar alternating current electrodes unless they contact at least one other electrically conductive medium, such as patient tissue or a medium comprising at least in part a solid, liquid, gas, or ionized component that allows electric current to flow between electrodes. In the aspect where at least one electrode is powered by direct current the electrodes are configured such that electrical current does not flow between at least one of the bipolar alternating current electrodes and at least one of the direct current electrodes unless one or more media, such as patient tissue or a medium comprising at least in part a solid, liquid, gas, or ionized component that allows electric current to flow between electrodes, are contacting or adjacent to the electrodes having a direct current voltage difference between them. The assembly comprised of the electrodes and the separating insulating materials may also employ one or more means to reduce the current flowing between them that does not produce a desired predetermined surgical effect with one aspect of such means being using an outer insulating coating configured such that one or more portions of at least one of the bipolar alternating current electrodes are insulated while leaving exposed other portions of such insulated electrodes so that they are capable of being in electrical communication with tissue or at least one material in electrical communication with tissue.
Owner:COLORADO FUND I L P ON ITS OWN BEHALF & AS OF BOTH AGENT FOR AND COLLATERAL AGENT FOR SERIES A 1 STOCKHOLDERS & AWEIDA VENTURE PARTNERS

USB storage device including USB plug with top and bottom terminals

The present invention relates to a USB storage device having a USB plug with top and bottom terminals, connection terminals of the USB plug being provided at both top and bottom sides so that an information terminal apparatus such as a PC, a notebook, an MP3 player and a digital camera, can be inserted in face-down/face-up manners, comprising a main unit and a cover unit, the main unit comprising a USB plug having connection terminals at both sides to be connected to a USB port of the information terminal apparatus to communicate data, and slide rails provided in a longitudinal direction to define a sliding range for rail protrusions of the cover unit; and the cover unit comprising rail protrusions inserted into the slide rails and provided at both ends of the cover unit toward the main unit so that the cover unit can rotatably move along with the slide rail. Therefore, since the USB storage device according to the present invention includes the connection terminals of the USB plug at top and bottom sides, it can be inserted into the information terminal apparatus in a face-down or face-up manner. Further, in the USB storage device according to the present invention, the sliding range for the rail protrusions provided on the cover unit is defined into the slide rails extending the corresponding main unit, thereby preventing the cover unit from being separated and missing.
Owner:STS SEMICON & TELECOMM
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