摘要:
Double ended wire guides are manufactured so that either end, or both ends sequentially, may be inserted into a patient. The ends are different, so that the inventory requirements of wire guides are minimized. For example, a wire guide may have a straight end and an angled end, either end suitable for use on the patient. The wire guides may also differ in other characteristics, such as the stiffness or the diameters of the distal and proximal portions. The wire guide may also be stored in a package, the package including a fitting so that wetting solution may be injected into the package to wet the wire guide and prepare it for use.
摘要:
A self-tensioning handle for use with endoscopic devices is disclosed. The handle may have mounting features for mounting a sheath and a control rod from an endoscopic device, such as a grasper or a retrieval basket. One mounting feature, such as a pin vise to hold a sheath, may be mounted in a distal portion of the handle, nearer a patient. Another mounting feature for a control rod or cannula of the endoscopic device is preferably mounted in a proximal portion of the handle. The handle is assembled with a tension or a pre-load so that a surgeon is not required to continually grip and compress the handle to retain a sample in the retrieval basket or other end-effector used with the handle.
摘要:
A multiple-lumen access sheath for use with an endoscopic or laparoscopic device. The sheath includes a flared funnel on a proximal end of the access sheath for ease of handling by a user. The sheath also includes an elongated portion extending from the funnel to a distal end of the sheath, the elongated portion comprising a first lumen and at least one additional lumen for substantially the length of the elongated portion. There is also an interface for the at least one additional lumen on the proximal end.
摘要:
A retrieval device for use in renal, biliary, vascular or other systems of a body includes a collapsible basket in a narrow sheath. A surgeon advances the device beyond an object to be removed from a body, such as a kidneystone, a gallstone, or a thrombus. The surgeon then retracts the sheath or advances the basket from the sheath. The basket deploys only to one side of the sheath. In some embodiments, the periphery of the basket has a flex point to enable the basket to easily collapse into the sheath. If the sheath is adjacent a body vessel, such as a blood vessel or a ureter, the sheath remains adjacent the wall, while the device deploys in such a manner as to seal against the walls of the vessel and block the flow of fragments, emboli, thrombi, or other undesirable objects.
摘要:
An irrigation catheter having at least two lumens for supplying irrigation fluid in minimally-invasive surgical procedures is revealed. The catheter works alongside but independently of an endoscope or other diagnostic or therapeutic instrument. The catheter may direct flow of the irrigation fluid in the same direction as the body's natural flow, thus enhancing visualization by the endoscope or other instrument.
摘要:
A simple and cost-effective manufacturing method for hybrid integrated components including at least one MEMS element, a cap for the micromechanical structure of the MEMS element, and at least one ASIC substrate, using which a high degree of miniaturization may be achieved. The micromechanical structure of the MEMS element and the cap are manufactured in a layered structure, proceeding from a shared semiconductor substrate, by applying at least one cap layer to a first surface of the semiconductor substrate, and by processing and structuring the semiconductor substrate proceeding from its other second surface, to produce and expose the micromechanical MEMS structure. The semiconductor substrate is then mounted with the MEMS-structured second surface on the ASIC substrate.
摘要:
A manufacturing method for a cap, for a hybrid vertically integrated component having a MEMS component a relatively large cavern volume having a low cavern internal pressure, and a reliable overload protection for the micromechanical structure of the MEMS component. A cap structure is produced in a flat cap substrate in a multistep anisotropic etching, and includes at least one mounting frame having at least one mounting surface and a stop structure, on the cap inner side, having at least one stop surface, the surface of the cap substrate being masked for the multistep anisotropic etching with at least two masking layers made of different materials, and the layouts of the masking layers and the number and duration of the etching steps being selected so that the mounting surface, the stop surface, and the cap inner side are situated at different surface levels of the cap structure.
摘要:
A component system includes at least one MEMS element, a cap for a micromechanical structure of the MEMS element, and at least one ASIC substrate. The micromechanical structure of the MEMS element is implemented in the functional layer of an SOI wafer. The MEMS element is mounted face down, with the structured functional layer on the ASIC substrate, and the cap is implemented in the substrate of the SOI wafer. The ASIC substrate includes a starting substrate provided with a layered structure on both sides. At least one circuit level is implemented in each case both in the MEMS-side layered structure and in the rear-side layered structure of the ASIC substrate. In the ASIC substrate, at least one ASIC through contact is implemented which electrically contacts at least one circuit level of the rear-side layered structure and/or at least one circuit level of the MEMS-side layered structure.
摘要:
A method and a device for locating tires mounted on a vehicle. High frequency signals are captured by way of a first transmit/receive device arranged on a vehicle, said high-frequency signals originating from a wheel electronic system arranged on the vehicle, said wheel electronic system interacting with tires of a first tire group that are mounted on the vehicle. A trigger signal having a frequency that is clearly lower than the frequency of the high frequency signal, is emitted by the first transmit/receive device. The first transmit/receive device is arranged on the vehicle in such a manner that the tires of the first tire group are mounted on the vehicle and the level of the first trigger signal is selected in such a manner that only one part of the wheel electronic system, which is associated with the tires of the first tire group, captures the first trigger signal and the high frequency signals which originate from the part of the wheel electronic system of the tires of the first wheel group that has captured the first trigger signal, contains information on the obtained first trigger signal.
摘要:
A micromechanical acoustic sensor element, which has at least one diaphragm and at least one fixed counter element, the diaphragm being situated in a cavity between a substrate and the counter element and acting as movable electrode of a capacitor system, the counter element acting as first fixed counter electrode of this capacitor system, and at least one through hole being formed in the substrate for the application of sound pressure to the diaphragm. For fixation and strengthening purposes, the counter element is connected to the substrate via at least one support element. The support element is situated in the region of the cavity, and an opening is formed in the diaphragm for the support element.