摘要:
A device for forming two triangular glass knives from a glass square, such as for ultramicrotomy, has a rotary table and a holding device for receiving, aligning, and fixing the glass square to be broken positioned on the rotary table. The holding device has two opposingly arranged clamping jaws of U-shaped profile for holding the glass square therebetween arranged on the rotary table. The rotary table's axis of rotation is aligned with the center of the glass square held between the clamping jaws. A scoring and breaking device is positioned above the table alignable with the glass square.
摘要:
The invention relates to a microtome having a blade oscillating transverse to the direction of advancing the cut, for sections on soft tissue samples. The oscillation frequency of the blade is controlled variably by the rotational speed of an electric motor. At the same time, the oscillation amplitude of the blade is also adjustable variably with the aid of an adjustable eccentric or a displacement device. This makes individual adjustment to the consistency of the tissue sample possible, which leads to improved quality of the microtome sections, in particular to a reduction in the waviness of the sections. This makes significantly thinner microtome sections possible, with corresponding advantages during microscopy.
摘要:
In an apparatus for microwave-assisted preparation of specimens with a microwave generator (1), a microwave chamber for receiving specimens (5) to be processed, and a container arrangement (11) for a number of containers (9) for liquids, the microwave chamber is realized as a waveguide (2) that includes a first opening (7a) for introduction of a specimen (5) and a second opening (8a), preferably arranged at the bottom, through which a liquid container (9) is reversibly introduced into the microwave chamber while the specimen (5) is held stationary, until the liquid container thus introduced into the microwave chamber, and the liquid contained therein, surround the specimen (5).
摘要:
A knife holder (1) for a microtome having a vibrating knife comprises a support element (2) and a clamping element (4) movable relative to the support element (2). The support element (2) is embodied with a support surface (2a) for the knife (3), and the clamping element (4) is embodied with a clamping surface (4a). For clamping the knife (3), the support surface (2a) and clamping surface (4a) are settable at a distance of 0.1 to 1.5 from one another.
摘要:
In an apparatus for microwave-assisted preparation of specimens with a microwave generator (1), a microwave chamber for receiving specimens (5) to be processed, and a container arrangement (11) for a number of containers (9) for liquids, the microwave chamber is realized as a waveguide (2) that comprises a first opening (7a) for introduction of a specimen (5) and a second opening (8a), preferably arranged at the bottom, through which a liquid container (9) is reversibly introduced into the microwave chamber while the specimen (5) is held stationary, until the liquid container thus introduced into the microwave chamber, and the liquid contained therein, surround the specimen (5).
摘要:
In microtomes or ultramicrotomes, it is necessary to preset the specimen (14) onto the knife (16). In order to facilitate and automate this presetting operation, which is intended to guarantee the fastest and most accurate possible positioning of the knife (16) relative to the specimen (14), the spacing (13) between the trimmed surface (15) of the specimen (14) and the specimen holder (22) is ascertained and is transferred to the microtome or ultramicrotome (10). The spacing (13) is preferably ascertained in the trimming device (12).
摘要:
An apparatus (1) for handling coverslips (20) for specimen slides (9) comprises a transport arm (8), a base block (3) mounted on the transport arm and having a having a notional center axis (3a), and at least two suction devices (4 and 5) carried by the base block (3), each suction device (4 and 5) having an end (4a and 5a) that comes into contact with a coverslip (2) and points away from the notional center axis (3a) of said base block (3). The base block (3) both removes a single coverslip (2) from a magazine (24), and deposits the removed coverslip (2) onto a specimen slide (9).
摘要:
A specimen holder (10) is proposed in order to create a capability for preparing, in a cutting device, in particular a microtome or ultramicrotome, a specimen that is to examined in an AFM. The specimen holder (10) is embodied in several parts. It comprises an insert (12) in which the specimen is secured. Also provided is a receiving ring (14) in which the insert (12) can be received. The insert together with the receiving ring (14) is mounted, in particular thread-joined, on a base element (16). As a result of the mounting of the receiving ring (14) on the base element (16), the insert together with the specimen is fixed in its position.
摘要:
A container (50) for an apparatus for automated cryosubstitution or low-temperature substitution is disclosed. The container is embodied as a cup (51) open at the top. The container (50) is subdivided into a first sector (52) and a second sector (53), at least one specimen holder (2) being arranged in the first sector (52) and at least one reservoir holder (20) in the second sector (53); and the container is arranged in the neck of a Dewar vessel (1).
摘要:
A coolant hose for the transport of coolant from a reservoir vessel to a cooling chamber is disclosed. The coolant hose is constructed from a transport hose and an insulating casing. The first and the second end of the coolant hose are respectively provided with a rotatable and thermally insulated connecting element that coacts with a corresponding connecting element on the cooling chamber and on the reservoir vessel.