摘要:
An endoscopic instrument with a hollow shank which on the proximal side is provided with a connection part with at least one suction connection and/or rinsing connection, with a coupling part for fixing a working insert. The coupling part is mounted rotatably with respect to the connection part. The endoscopic instrument furthermore includes means for the detachable connection of the coupling part and the connection part, as well as an annular axial seal which is arranged between the connection part and the coupling part.
摘要:
An endoscopic instrument, having a shank (2) envisaged for introduction into a body opening (8), has on its outer surface raised parts (10) lying at the corner points of a polygon, so that an essentially linear contact is formed between the shank (2) and the body.
摘要:
An endoscopic instrument with a hollow shank which on the proximal side is provided with a connection part with at least one suction connection and/or rinsing connection, with a coupling part for fixing a working insert. The coupling part is mounted rotatably with respect to the connection part and the coupling part is detachably connected to the connection part. The endoscopic instrument further includes an annular axial seal which is arranged between the connection part and the coupling part.
摘要:
A test strip having a small sample-receiving chamber on the order of less than 1 microliter. The inventive test strip includes a reagent layer that extends across the width of the test strip and also extends to the sample-receiving end, such that the edges of the reagent layer are aligned with the side and dose receiving edges of the test strip. The hydrophilic reagent extending to the dosing edge of the strip promotes wicking of the sample into the test strip. The end and side edges of the reagent layer are preferably formed as part of a cutting process that forms individual test strips from a larger web, which results in a smooth and thin reagent layer with a uniform thickness, substantially covering the entire floor of the sample-receiving chamber. The inventive mass production process helps improve the reproducibility of the quantity, location, thickness and other properties of the reagent layer, which in turn improves the accuracy of the test result.
摘要:
A vibration damper includes a damper tube filled with a damping medium; a piston rod which can move in an oscillating and reciprocal manner in the damper tube and one end of which protrudes into the damper tube and which comprises at this end a piston rod extension and a shoulder. A piston divides the interior of the damper tube into a working chamber remote from the piston rod and a piston rod-side working chamber and which is disposed coaxially with respect to the piston rod extension and comprises restrictor openings and at least one spring washer covering these restrictor openings in each working chamber. A buffer spring is disposed in the piston rod-side working chamber. Also a spring collar which is disposed in the piston rod-side working chamber and has a first support surface supporting the buffer spring and a second support surface for the at least one spring washer disposed in the piston rod-side working chamber. In order to ensure that forces and moments exerted by the buffer spring onto the spring collar are introduced directly into the piston rod, wherein simultaneously the smallest possible axial installation height for the arrangement consisting of the spring collar, the piston rod and the buffer spring is achieved, it is proposed that the spring collar comprises a stepped bore which has a first bore section having a small diameter and a second bore section having a larger diameter, wherein the first bore section is allocated to the piston rod extension and the second bore section is allocated to the end of the piston rod, and the spring collar is connected to the piston rod is a non-positive and/or positive locking manner so that a force exerted by buffer spring onto the spring collar is introduced directly into the piston rod.
摘要:
The invention relates to a soluble coffee beverage powder, which, upon the addition of water, is capable of forming a coffee beverage having a foamed upper surface. The soluble coffee beverage powder includes a soluble gas containing matrix comprising soluble coffee solids and a soluble filler, with the soluble filler constituting at least about 35% by weight of the dry matter of the matrix in order to increase the volume of the soluble coffee beverage powder incorporating gas. A particular preferred filler is an oligofructose that has a good solubility and which positively influences on the taste of the prepared coffee beverage. The invention also relates a soluble coffee beverage powder providing a black foamed coffee. The invention also provides a process for preparing such a soluble coffee beverage powder.
摘要:
Dispensing device for dispensing small quantities of fluid comprising a compressible balloon with an end-to-end capillary inserted within the walls of the balloon in such a way that the one end of the capillary communicates with the interior of the balloon and the other end of the capillary communicates with the exterior space. The balloon has at least one opening through which the interior space of the balloon communicates with the exterior space. The at least one opening has a flow resistance that is designed so that a fluid contained in the capillary is expelled when the balloon is compressed. The present invention also comprises a system and method for the metered dispensing of fluids.
摘要:
Device for the isolation of nucleic acids from a liquid sample by introducing the liquid into the device through an inlet opening and passage of the sample through a nucleic acid binding material and discharging of the resulting liquid through an outlet opening, wherein the nucleic acid binding material is inserted through the outlet opening during the manufacture of the device and the outlet opening is narrowed in order to hold the material. The device is particularly simple and reliable to manufacture but yet ensures that nucleic acids can be isolated without contamination.
摘要:
A test carrier for the determination of ions containing a test layer which has a liquid-resistant, organic phase which contains a hydrophobic polymer in a homogeneous mixture with a hydrophobic, organic liquid of low volatility and an ionophore, as well as a substance which changes its colour in the presence of the ion to be determined. The test carrier is characterized in that the test layer contains particles with an oil number of 80-200 and the ionophore is homogeneously dispersed in the hydrophobic, organic phase. A second test layer contains a buffer capable of maintaining the pH therein at a value of between 5-10.
摘要:
The invention concerns lancets with a lancet needle, the tip of the lancet needle being embedded in an elastic material. Furthermore the invention concerns lancets where the tip of the lancet needle is surrounded by a hollow body which partially consists of an elastic material that can be pierced by the tip of the lancet needle during the lancing process and which reseals the tip of the lancet needle in the hollow body when it is retracted. In addition the invention concerns a lancet magazine in which the lancets are accommodated in individual chambers, each chamber having an opening through which the tip of the lancet needle can pass, which is sealed by an elastic material. Finally the invention concerns the use of an elastic material as a component of a lancet or a lancet magazine to maintain the sterility of at least the tip of a lancet needle in the unused state and to hygienically protect at least the tip of a lancet needle in the used state.