Abstract: A flexible covered stent having a stent covered on a first surface by a first layer of biocompatible material and on a second surface by both a second and third layer of biocompatible material, the first and second layers and the first and third layers of biocompatible material being bonded to one another through openings in a wall in the stent. The first layer of biocompatible material is longer than both the second and third layers of biocompatible material such that at least a portion of the second surface of the stent is not covered by either second or third layer, imparting flexibility to the stent.

Abstract: A flexible covered stent includes a stent covered on a first surface by a first layer of biocompatible material and on a second surface by a second layer of biocompatible material, the first and second layers of biocompatible material being bonded to one another through a wall in the stent. The first layer of biocompatible material is longer than the second layer of biocompatible material such that at least a portion of the second surface of the stent is left uncovered, imparting flexibility to the stent. A mid portion of the second surface of the stent can be left uncovered to impart flexibility to the stent similar to that enjoyed by a bare stent.

Abstract: The invention relates to a system for supporting accessories on a patent resting surface of an operation or examination table (10) comprising an accessory adapter (24) that can be slipped on the profile of the patient resting surface (14). Support elements (32) for accessories are fastened to said accessory adapter. The adapter (14) comprises two claws (26) adapted to encompass the longitudinal edges of the patient resting surface. Said claws are interlinked via a bracket (28) that extends across a width of the patient resting surface.

Abstract: The invention relates to a process for the preparation of a substituted alkene of formula (I) wherein R1, R2 and R3 are independently of each other a protecting group for a hydroxy group or hydrogen and R4 is phenyl which is unsubstituted or mono- or disubstituted by alkoxy, which alkene constitutes an intermediate for the preparation of discodermolide and discodermolide analogues.

Abstract: The invention relates to an arrangement for detachably connecting two construction parts (10, 24) abutting against each other in a flush manner, the first construction part (10) comprising a dovetail groove and the second construction part (24) comprising at least one sliding block (36) for engaging in the dovetail groove (32). After being introduced into the dovetail groove (32), the sliding block can be adjusted by means of a tensioning device (46) to tighten the abutting surfaces (22, 30) of the two components (10, 24) against each other. The inner surfaces (62) and the outer surfaces (64) of groove legs (34) defining the dovetail groove (32) are parallel to each other. Abutment surfaces (68 or 70) for the groove legs (34) are formed in the abutting surface (30) of the construction part carrying the sliding block (36) and are parallel to the outer surfaces (64) and the end surfaces (66) of the groove legs (34).

Abstract: A flexible covered stent includes a stent covered on a first surface by a first layer of biocompatible material and on a second surface by a second layer of biocompatible material, the first and second layers of biocompatible material being bonded to one another through a wall in the stent. The first layer of biocompatible material is longer than the second layer of biocompatible material such that at least a portion of the second surface of the stent is left uncovered, imparting flexibility to the stent. A mid portion of the second surface of the stent can be left uncovered to impart flexibility to the stent similar to that enjoyed by a bare stent.

Abstract: A portion of a covered stent is encapsulated with ePTFE, so that the unencapsulated portion, which is covered by a single ePTFE covering, imparts an unimpaired flexibility to the stent. One surface of the stent, either the luminal or abluminal surface, is covered by a single continuous layer of ePTFE, while limited regions, preferably near the ends of the stent, of the other surface are also covered by ePTFE. The regions covered by ePTFE on both surfaces become encapsulated when the ePTFE of one layer becomes bonded to second layer. By leaving a middle region of the stent unencapsulated, the stent retains flexibility similar to a bare stent, thereby reducing the loading and deployment forces.

Abstract: With this device the fluid is located in a container which can be set under pressure, into which two cannulas of differing lengths may be inserted. A short cannula, via a gas conduit and a release valve, is connectable to a pressurised gas source in order to impinge the container above the fluid level with pressurised gas, whilst the other longer cannula is connectable to a fluid conduit leading to the instrument and protrudes into the fluid located in the container. The fluid flow to the instrument is interruptable with a blocking element and the pressurised gas supply to the container is interruptable with the release valve. Such a device may be simply constructed and used when, according to the invention, the cannulas, the blocking element and a control valve are grouped together into a constructional unit on which there is located one connection for the gas conduit and a further connection for the fluid conduit.

Abstract: The gear for twin-screw extruders having a first output shaft which is driven by a drive shaft and a second output shaft which is driven by the first output shaft via two side shafts which are arranged on both sides. The shafts are arranged parallel and inside a joint gearbox case which is divided along a vertical junction plane into two gearbox case halves. The junction plane extends between the axes of the two output shafts.

Abstract: A knee bending device for patients having stiff legs comprises a chair having a tubular metal frame supporting a seat, back support and arm rests. A U-shaped stirrup having two parallel limbs and a connecting central bar has its limbs pivotally mounted at respective arm rests so that the free ends of the limbs extend above the arm rests to form levers by which a patient seated in the chair can swing the stirrup back and forth with his hands. As the levers are pressed forward, the connecting bar moves rearwardly to contact the top of the patient's foot. Further forward movement of the levers will result in the patient's foot being pressed back to bend his leg at the knee.