A glass tube is positioned over a heater and stretched until drawn apart into two drawn portions. A controlled pulling force is applied to the tube by a powered driver such as a linear motor. After separation, one of the drawn glass portions is repositioned over the heater and reciprocated in a controlled fashion by the driver to refine the geometry of the fine tip formed on the resulting pipette.
Manual Drive For Positioning Precision Instruments
A carriage adapted for carrying a laboratory instrument such as a pipette, electrode, or syringe is driven by a drive shaft in the form of a lead screw. The lead screw is selectively driven by a high speed drive wheel or by a low speed drive wheel. The drive wheels are coaxially mounted around the drive shaft and concentrically and coaxially arranged with respect to one another. The drive shaft and the two drive wheels all rotate in unison in the same rotary direction.
A hollow dissection specimen holder has an internal chamber in open and direct communication with a series of dissection guide slots. The roof of the chamber is located above the floor of the slots to allow a razor to pass completely through the specimen and into the top of the chamber to deposit cut tissue and other debris into the chamber.
A slide is mounted on a slideway with a pair of tongue and groove interconnections. The slideway has a pair of engagement rails or tongues provided on a pair of cantilevered arms. The rails are spring biased within a pair of grooves formed in the slideway. An adjustment screw drives the arms apart to adjustably spring bias the rails into the grooves.
Imaging Machine / Mri Positioning Assembly For Magnet Coils And Specimens At The Sweet Spot Of An Imaging Field
A system is provided for facilitating the imaging of a specimen, such as a laboratory rat, within an imaging machine such as an MRI machine. A sliding, self-centering interconnection is provided between a magnetic positioning and spacing assembly and a specimen positioning and retention assembly. Support and abutment surfaces are provided for facilitating the proper mounting locations of a gradient coil and probe coil within the main magnet coil and for optimally locating a specimen with respect to the main magnet coil and with respect to the gradient and probe coils.
A releasable coupling includes a male coupling portion having a frustoconical male plug portion, and a female coupling portion having a frustoconical female socket portion. The male and female coupling portions are locked together and unlocked by a bidirectional rotatable cam ring which drives one or more balls between the male and female coupling portions.
A low cost specimen holder for accurately positioning an animal or other specimen in an imaging machine is constructed from two thin sheets of formed plastic. Each sheet can be formed with a half cavity corresponding to the size and shape of a rodent or other laboratory animal or specimen. To minimize diffraction of imaging beams, one of the sheets can be formed to accommodate the entire specimen, and the other sheet can be substantially planar. The two sheets may be snap-fit or press-fit together to closely hold or encapsulate a specimen with the resulting cavity.
An animal holder is provided with a specialized coupling that is releasably mountable to a number of different imaging machines such as X-ray, CAT, MRI and PET machines. Composite images created from combining images from such different machines are particularly clear due to the predetermined alignment of the animal holder within the center of the field of view of each machine.
Medical Devices Medical Imaging Biomedical Engineering Capital Equipment Digital Imaging R&D Hardware Diagnostics Biotechnology Lifesciences Product Development Image Processing Radiology
Down 2-0. Lush led off by reaching on an error, then eventually went to third when McEleney walked and Chris Chiodo dropped a perfect bunt single to load the bases. Lee's bloop single to right scored Lush and Tre Dowds fielders choice grounder scored McEleney to tie the score.McEleney walked, stole both second and third and scored on Chris Chiodos double to left. Lee then crushed a double, scoring Chris Chiodo to make it 5-2. With two outs, an error on a grounder by Jared Barreto scored Lee and Powers ripped another double to bring home Barreto for a 7-2 Tanner advantag
Date: Apr 15, 2024
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