Abstract: A method for performing a domain transformation of a digital signal from the time domain into the frequency domain and vice versa, the method including performing the transformation by a transforming element, the transformation element comprising a plurality of lifting stages, wherein the transformation corresponds to a transformation matrix and wherein at least one lifting stage of the plurality of lifting stages comprises at least one auxiliary transformation matrix and a rounding unit, the auxiliary transformation matrix comprising the transformation matrix itself or the corresponding transformation matrix of lower dimension. The method further comprising performing a rounding operation of the signal by the rounding unit after the transformation by the auxiliary transformation matrix.

Abstract: An anti-extravasation sheath includes a tube sized and dimensioned to permit fluid flow between the inner surface of the tube and an outer surface of an arthroscopic instrument when the arthroscopic instrument is disposed within the tube. A plurality of ribs extending inwardly from the inner surface of the tube and running longitudinally along the tube form a seal between the outer surface of the arthroscopic instrument, thus defining outer lumens between the outer surface of the arthroscopic instrument and the inner surface of the tube. At least one drainage lumen extending longitudinally along the tube and disposed within the ribs is in fluid communication with at least one drainage aperture disposed on the central portion of the tube.

Abstract: Devices and methods for attaching a belt cartridge to a belt drive platform. A clip attached to the belt is inserted into a slot in the drive spool of the belt drive platform. The cover plate of the belt cartridge fits into a channel beam in the housing of the belt drive platform, thereby securing the cartridge to the housing. Belt guards, for protecting the cartridge, belt drive platform, patient and rescuer, are rotatably attached to the cover plate and are secured around spindles disposed on the sides of the housing.

Abstract: A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.

Abstract: A liquid cryogen fluid system for providing cryogenic liquid to a cryoprobe in a cryosurgical system for treating fibroadenomas and other lesions in the body. The system includes a cryoprobe to cryoablate a fibroademona with a treatment regimen that takes less time and consumes less cryogen than currently accepted regimens.

Abstract: A cantilever plate connection element (1) for connecting a floor/ceiling plate.

Abstract: An edible bird's nests production facility comprising of: a wholly man made artificial caves system and/or converted natural relief such as caves, valleys, cliffs forming the nesting habitat and associated supporting facilities configured to breed swiftlets for their nests by means of a captive breeding program for swiftlets; commercialized-scientific farming methods; specialized apparatus, mechanisms and techniques; managed sustainable harvesting of nests; provision of a safe and secure nesting habitat and a conducive environment to maximize avian population by minimizing mortality rates; safe collection of nests by means of mechanized lifting systems and specialist mountaineering equipment.

Abstract: A universal metal stud clip is a support mechanism for securing one or more electrical boxes or other construction components to metal construction elements such as metal studs. The opposed spring arm design permits the clip to be oriented in any useful way and frictionally secured to metal studs of varying dimensions. Metal stud clips include one or more pair of resilient arms to frictionally engage metal studs. Using two or more pair of resilient arms provides a very stable attachment to the metal stud.

Abstract: A video test tool for diagnosing video processing for interlacing is disclosed along with a video test tool for quantifying “jaggies” in a video display.

Abstract: A system for performing chest compression for Cardiopulmonary Resuscitation. The system includes a motor, drive spool and associated couplings which allow for controlling and limiting the movement of the compressing mechanism and includes a control system for controlling the operation and interaction of the various components to provide for optimal automatic operation of the system.

Abstract: A practical treatment apparatus for ship ballast water, which can kill aquatic organisms contained in the ballast water, is provided by being easily incorporated in an existing ballast-water system piping in a ship.

Abstract: The devices and methods shown provide for the minimization of extravasation during arthroscopic surgery. The extravasation minimization device allows a surgeon to drain excess fluids from the soft tissue surrounding the surgical field during arthroscopic surgical procedures.

Abstract: A drug delivery catheter suited for cardiac procedures. The catheter includes a distal helical coil or other fixation and penetrating element which can be operated from the proximal end of the catheter to engage and penetrate the myocardium. Once delivered to the inside of the heart, the catheter can be used to inject small doses of therapeutic agents to the myocardium. The drug delivery system of the catheter allows for precise control of the dose injected into the heart wall.

Abstract: A wireless communication system for providing a radio frequency (RF) link between an enclosed environment that is at least substantially shielded from RF signals, and the outside of the enclosed environment is disclosed. The wireless communication system includes at least one gateway antenna arranged at an entrance point of the enclosed environment. The gateway antenna radiates downlink RF signals into and receives uplink RF signals from, the enclosed environment, respectively. The system also includes at least one auxiliary repeater arranged within the enclosed environment, a donor antenna and a server antenna. Both the donor and the server antenna are coupled to the auxiliary repeater. The auxiliary repeater relays the downlink and the uplink RF signals using the donor antenna and the server antenna. A lift system including the wireless communication system is also disclosed.

Abstract: A removable, resilient atraumatic sheath for arthroscopic instruments. The sheath covers sharp edges on the arthroscopic instrument, particularly the distal tip of the rigid cannula, and thereby protects tissue and objects near a surgical site from accidental trauma. The sheath may be provided in the form of an inflow/outflow sheath that allows a surgeon to irrigate and drain a surgical field without the use of a separate irrigation instrument. The distal tip of the sheath may comprise a dissimilar material of a higher modulus of elasticity than the material comprising the remainder of the tube.

Abstract: The effective focal length of an optical system can be electronically controlled using switchable wave plates in conjunction with polarized light.

Abstract: The invention relates to a data carrier into which, by a laser beam, identifiers (20, 22) are introduced in the form of patterns, letters, numbers and/or images that are visible due to local changes in the optical properties of the data carrier, effected by the laser beam and resulting from material transformations. According to the present invention, the data carrier comprises a laser-sensitive recording layer (26) that is transparent in the visible spectral range and that is provided with a surface relief in the form of a lens grid (28). The identifiers are introduced with the laser beam from different directions through the lens grid (28) into the recording layer (26) and are perceptible when later viewed from those same directions. The data carrier is transparent at least in the area of the introduced identifiers (20, 22).

Abstract: The process for producing gaskets includes the steps of: forming a metal core material (2) using a stainless steel plate; treating the resulting metal core material (2) with an alkali treating solution; preparing an unvulcanized rubber molded product (1); mounting the metal core material (2) treated in the treating step to the unvulcanized rubber molded product (1); and vulcanizing the rubber-molded product to thereby anchor the elastic material to the metal core material (2) without using an adhesive; characterized in that the alkali treating solution used in the step of alkali treatment includes the following components (A), (B), and (C): (A) an alkali metal hydroxide or an alkaline earth metal hydroxide; (B) an alkali metal silicate or an alkaline earth metal silicate; and (C) a carboxylate salt.

Abstract: A method of treating the intraluminal disease in a coronary artery by injecting therapeutic agents perivascularly into the myocardium near the site of disease.

Abstract: A removable, resilient atraumatic sheath for arthroscopic instruments. The sheath covers sharp edges on the arthroscopic instrument, particularly the distal tip of the rigid cannula, and thereby protects tissue and objects near a surgical site from accidental trauma. The sheath may be provided in the form of an inflow/outflow sheath that allows a surgeon to irrigate and drain a surgical field without the use of a separate irrigation instrument.