摘要:
A process for the production of an implant and to an implant for surgical use in humans or vertebrates, in particular for the replacement, for the partial replacement or for the strengthening of a damaged intervertebral disk or for the replacement, for the partial replacement or for the strengthening of an anatomical joint. The implant includes at least one wire or at least one fiber. The wire or the fiber is present at least partially as a knitted fabric.
摘要:
A yarn feeding and guide device for knitting machines has at least one yarn feeder, which delivers the yarn arriving from a yarn package and being supplied as needed at a predetermined tension by a yarn delivery unit or fournisseur to the needles of a row of needles. The yarn feeder is disposed in a stationary manner on the machine such that it does not contact the needles of the needle row, and yarn guide elements located in the path of the yarn are associated with it. In order to obtain gentle handling of the yarn, in particular in the vicinity of the yarn feeder, and to attain easy manipulation of the yarn feeding and guide device, the arrangement is such that the yarn feeder has at least one open yarn guide groove formed on the circumference of a yarn feeder body provided with a securing device, and the bottom of this guide groove is curved in an arc--as viewed in the direction of yarn travel--and the yarn can be deflected in this guide groove into a direction extending obliquely with respect to the needles.
摘要:
A method of delivering a radioactive liquid includes, performing an initialization, including; extracting at least a first amount of a radioactive liquid from a source of radioactive liquid, measuring a radioactivity level for the first amount of radioactive liquid, and performing a calibration phase. The calibration phase includes, extracting a second amount of radioactive liquid from the source of radioactive liquid wherein the second amount is calculated based on the radioactivity level of the first amount to provide a total dose of radioactive liquid having a predetermined radioactivity level, and delivering the total dose and performing at least one more calibration and delivery phases.
摘要:
The present invention relates to an implant for surgical use in humans or vertebrate animals in the replacement, partial replacement or reinforcement of a joint or an intervertebral disk and to a method for the production of an implant. In a first embodiment, the implant comprises a composite structure of a first section, which is formed at least by one compression-molded component made of wire, and a second section, with the first section being at least in parts embedded in the second section. In a second embodiment, the implant also comprises a compression-molded component. This component is formed by a wire made of a first material, with parts of said wire of the molded component having a coating made of a second material.
摘要:
In order to increase the operating speed of the knitting machine and to attain a fine needle cut, sinkers (7), with their shaft (12), are guided on a needle carrier (1), and simultaneously forming guide ribs for adjacent needle shafts (3). A projection cam (16) which imparts to the sinkers (7) the movement transverse to the needles (2) is disposed directly on the needle carrier (1).
摘要:
A method of delivering a radioactive liquid includes, performing an initialization, including; extracting at least a first amount of a radioactive liquid from a source of radioactive liquid, measuring a radioactivity level for the first amount of radioactive liquid, and performing a calibration phase. The calibration phase includes, extracting a second amount of radioactive liquid from the source of radioactive liquid wherein the second amount is calculated based on the radioactivity level of the first amount to provide a total dose of radioactive liquid having a predetermined radioactivity level, and delivering the total dose and performing at least one more calibration and delivery phases.
摘要:
A device and a method for accurate dispensing of a radioactive liquid are disclosed. A source of a radioactive liquid and a source of a flushing liquid are selectively connected to a fluid delivery path by way of valve means. An activity metering unit is operable to determine a level of radioactivity in a metering section of the fluid delivery path downstream from the valve means. The device is operated by transporting a first amount of radioactive liquid to the metering section, using the activity metering unit to measure a reference level of radioactivity, calculating a second amount of the radioactive liquid still to be delivered such that the first and second amounts of radioactive liquid together have some predetermined level of radioactivity, and delivering the first and second amounts of radioactive liquid to the destination.
摘要:
The invention concerns a plate for fixing bone fragments, where the plate consists of a pressed molded body of wire, preferably a pressed knitted fabric.
摘要:
A device and a method for accurate and remote dispensing of a radioactive liquid are disclosed. A source of a radioactive liquid (1) and a source of a flushing liquid (5) are selectively connected to a fluid delivery path (7, 8, 10) by way of valve means (V1). An activity metering unit (9) is operable to determine a level of radioactivity in a metering section (8) of the fluid delivery path downstream from the valve means (V1). The device is operated by transporting a first amount of radioactive liquid (1) to the metering section (8), using the activity metering unit (9) to measure a reference level of radioactivity, calculating a second amount of the radioactive liquid still to be delivered such that the first and second amounts of radioactive liquid together have some predetermined level of radioactivity, and delivering the first and second amounts of radioactive liquid to the destination (11).
摘要:
To prevent damage to an electrical resistance heater (13-16) which, when energized by electrical energy, for example in the order of 100 A at 12-24 V, a heat reservoir substance is included in the filter, positioned in heat transfer relation to the electrical resistance heater (13-16) and located, with respect to the flow direction of the gas stream through the filter, upstream of the filter material (15). Preferably, the electrical resistance heater is a perforated, tubular sheet-metal structure, axial ends of which are electrically connectable by connecting bolts (21, 25) to an electrical energy supply. The heat reservoir substance (14) is either wrapped at the outside over the tubular resistance heater (13-16), applied as a layer (14a) at the inside of the tubular resistance heater, or filled into the hollow interior thereof in form of a wire wool (14b). This substantially increases the heat transfer or heat exchange surface between the resistance heater and gases flowing therethrough, thus decreasing required electrical heating energy and protecting the resistance heater (13-16) against overheating upon variations in gas flow when the heater is energized. A typical heater temperature is 1300.degree. C., and it is, for example, made of sheet metal of 22% chromium, 4.8% aluminum, the remainder iron; the filter material preferably includes mineral fibers and metal wire; the heat reservoir substance (14) can be Inconel (Reg. TM) wire, preferably knitted.