Patent application number | Description | Published |
20080266440 | PREDICTIVE AUTOFOCUSING - A method of autofocusing includes capturing first, second and third images of a sample, at respective first, second and third sample distances and respective first, second and third lateral positions determined with respect to an objective; determining a quantitative characteristic for the first, second and third images; determining a primary sample distance based upon at least the quantitative characteristics for the first, second, and third images; and capturing a primary image of the sample at the primary sample distance and at a primary lateral position that is offset from the first, second and third lateral positions. | 10-30-2008 |
20080266652 | MICROSCOPE WITH DUAL IMAGE SENSORS FOR RAPID AUTOFOCUSING - A digital optical microscope includes a primary image sensor that generates a primary image of a sample at a primary frame rate, an auxiliary image sensor that generates an auxiliary image of the sample at an auxiliary frame rate that is faster than the primary frame rate, and a controller that adjusts a focal distance between an objective lens and the sample along an optical axis in response to the auxiliary image, thereby autofocusing the primary image on the sample. The primary image sensor generates the primary image in response to the autofocusing. | 10-30-2008 |
20090253163 | ITERATIVE STAINING OF BIOLOGICAL SAMPLES - Automated methods and devices that facilitate iterative staining of biological samples from imaging applications are provided. The methods include the steps of providing a small volume flow cell containing a biological sample, applying a stain to the biological sample, combining at least two precursor reagents to form an activated destaining agent and wherein the activated destaining agent decomposition rate is greater than or similar to the destaining reaction rate, and flowing the destaining agent over the biological sample at a flow rate that is greater than the decomposition rate of the activated destaining agent. The process of staining, combining and flowing may be iteratively repeated. Also disclosed herein are devices for iterative staining of biological samples comprising a flow cell, in fluid communication with a premixer, wherein the volume capacity of the premixer is smaller than about five times the volume capacity of the flow cell. | 10-08-2009 |
20100047925 | SEQUENTIAL ANALYSIS OF BIOLOGICAL SAMPLES - Methods for detecting multiple targets in a biological sample are provided. The methods includes contacting the sample with a first probe; physically binding the first probe to a first target; observing a first signal from the first probe; applying a chemical agent to modify the first signal; contacting the sample with a second probe; physically binding the second probe to a second target; and observing a second signal from the second probe. The methods disclosed herein also provide for multiple iterations of binding, observing, signal modification for deriving information about multiple targets in a single sample. An associated kit and device are also provided. | 02-25-2010 |
20100301230 | METHOD AND APPARATUS FOR ULTRAVIOLET SCAN PLANNING - The invention provides method for locating one or more substantially circular-shaped tissue sample positioned on a solid support. The method involves the steps of transmitting light of a preselected wavelength onto a tissue sample, wherein the light induces the tissue sample to autofluoresce, identifying the center location of the tissue sample using the autofluoresced light, correlating the coordinates of the center location of the tissue sample on the solid support using an x, y-coordinate system, and mapping the coordinates of the tissue sample on the solid support to differentiate tissue sample containing regions from blank regions on the solid support. In a second aspect, the invention provides an apparatus for locating one or more substantially circular-shaped tissue sample positioned on a solid support. | 12-02-2010 |
20110026803 | METHODS AND SYSTEMS FOR DIGITALLY ENHANCING AN IMAGE OF A STAINED MATERIAL - Methods and systems for digitally enhancing an initial image of a material to which a plurality of stains were previously applied, that generally comprise: unmixing the image into a plurality of individual reconstructed images, each individual image corresponding to one of the stains; estimating a residual image corresponding to the difference between the original image and the reconstructed images; adjusting one or more components of the individual images; mixing the adjusted components using one or more estimated mixing coefficients; and adding the residual image to the mixed adjusted components to generate an enhanced image. | 02-03-2011 |
20110075914 | SYSTEM AND METHOD FOR THE QUANTITATIVE ASSESSMENT OF DIGITAL HISTOLOGY IMAGES - The present disclosure concerns a method and system for assessing image quality of sub-images used to form a composite image using an algorithm developed by applying statistical correlation techniques to historical data on features of sub-images which were manually evaluated by experts and using those assessment to make decisions about the further processing of the sub-images which are being assessed. The method and system find particular value in the processing of sub-images generated while there is relative motion between the specimen under examination and the objective lens of a microscope such as when the microscope stage follows a planned traverse in the focal plane and a digital image is created at intervals correlated to the motion of the stage so that a region of interest in the specimen under examination is covered by the sub-images. The further processing decisions include manually examining the sub-images assessed to have unacceptable image quality, reimaging the entire region of interest and recreating specific sub-images. The method and system may also involve overlaying portions of a composite image with an indication that they were drawn from sub-images of unacceptable image quality. | 03-31-2011 |
20110235875 | METHODS AND APPARATUS FOR OPTICAL SEGMENTATION OF BIOLOGICAL SAMPLES - A method for the imaging of protein expression and location in biological samples using optical segmentation is provided. The steps comprise acquiring a fluorescent image of a biological sample, analyzing the image and generating a masking pattern corresponding to a specific structure within the biological sample, transforming the masking pattern into the spatial coordinates of a digital micro-mirror device (DMD) which may then be projected onto the biological sample and obtaining a masked fluorescent image. Also provided is an image analysis system for imaging of protein expression and location in biological samples using optical segmentation. | 09-29-2011 |
20120134603 | METHODS FOR SCALING IMAGES TO DIFFERING EXPOSURE TIMES - Methods for scaling an image taken an optimal exposure time to a selected exposure time, generally comprising, determining a dark pixel intensity of an imaging device; acquiring a first image at an optimal exposure time; and adjusting a pixel intensity of one or more pixels in the first image, based at least in part on the dark pixel intensity, for a second exposure time that is different from the optimal exposure time. | 05-31-2012 |
20120135449 | ITERATIVE STAINING OF BIOLOGICAL SAMPLES - Automated methods and devices that facilitate iterative staining of biological samples from imaging applications are provided. The methods include the steps of providing a small volume flow cell containing a biological sample, applying a stain to the biological sample, combining at least two precursor reagents to form an activated destaining agent and wherein the activated destaining agent decomposition rate is greater than or similar to the destaining reaction rate, flowing the destaining agent over the biological sample at a flow rate that is greater than the decomposition rate of the activated destaining agent, and releasing the sample from the flow cell wherein the integrity of the sample is intact. The process of staining, combining and flowing may be iteratively repeated. Also disclosed herein are devices for iterative staining of biological samples comprising a flow cell, in fluid communication with a premixer, wherein the volume capacity of the premixer is smaller than about five times the volume capacity of the flow cell. | 05-31-2012 |
20120135458 | CLOSED LOOP MONITORING OF AUTOMATED MOLECULAR PATHOLOGY SYSTEM - A closed loop automated method for staining of a biological sample is provided. The method comprises providing a biological sample, staining at least a portion of the biological sample by flowing in a reagent, monitoring one or more optical characteristics of the biological sample, and calculating a figure of merit based on at least one of the optical characteristics. An automated device for iterative staining of a biological sample is also provided. | 05-31-2012 |
20120231967 | SEQUENTIAL ANALYSIS OF BIOLOGICAL SAMPLES - Methods for detecting multiple targets in a biological sample are provided. The methods includes contacting the sample with a first probe; physically binding the first probe to a first target; observing a first signal from the first probe; applying a chemical agent to modify the first signal; contacting the sample with a second probe; physically binding the second probe to a second target; and observing a second signal from the second probe. The methods disclosed herein also provide for multiple iterations of binding, observing, signal modification for deriving information about multiple targets in a single sample. An associated kit and device are also provided. | 09-13-2012 |
20130163002 | Quantitative Phase Microscopy For Label-Free High-Contrast Cell Imaging - Systems and methods described herein employ multiple phase-contrast images with various relative phase shifts between light diffracted by a sample and light not diffracted by the sample to produce a quantitative phase image. The produced quantitative phase image may have sufficient contrast for label-free auto-segmentation of cell bodies and nuclei. | 06-27-2013 |
20130287645 | MICROFLUIDIC CHAMBER DEVICE AND FABRICATION - A microfluidic flow cell subassembly, which may be assembled into a flow cell having fluidic connections outside of the main substrate, is described for encapsulating a sample to allow for subsequent controlled delivery of reagents to the sample, such as multiplexed in situ biomarker staining and analysis. Methods for fabricating the subassembly and assembled flow cell are also provided. The method includes the steps of adhering a gasket layer to a substrate layer, wherein the gasket layer may contain enclosed features and adhering an adherent layer to the gasket layer. The subassembly may be sealed against a solid support to form a flow cell. | 10-31-2013 |
20130321814 | SYSTEMS AND METHODS FOR SCREENING OF BIOLOGICAL SAMPLES - A screening module configured to screen at least a portion of a biological sample disposed on an analysis surface is provided. The screening module comprises a laser source a scanning unit comprising one or more scanning devices, wherein the scanning devices are configured to rotate in an oscillatory scanning motion about an axis of rotation to scan the analysis surface in at least one direction, wherein the scanning unit is physically coupled to the laser source, and a detection unit comprising one or more detection devices. | 12-05-2013 |
20130335548 | QUANTITATIVE PHASE MICROSCOPY FOR HIGH-CONTRAST CELL IMAGING USING FREQUENCY DOMAIN PHASE SHIFT - Some systems described herein include a frequency dependent phase plate for generating multiple phase-contrast images of a sample, each from a different frequency range of light, each phase-contrast image for frequency range of light formed from light diffracted by the sample interfered with undiffracted light that has a frequency-dependent baseline relative phase shift from the phase plate. In some embodiments, the multiple phase-contrast images may be used to generate a quantitative phase image of a sample. The phase-contrast images or the produced quantitative phase image may have sufficient contrast for label-free auto-segmentation of cell bodies and nuclei. | 12-19-2013 |
20140001337 | SYSTEMS AND METHODS FOR PROCESSING AND IMAGING OF BIOLOGICAL SAMPLES | 01-02-2014 |
20140045251 | SEQUENTIAL ANALYSIS OF BIOLOGICAL SAMPLES - Methods for detecting multiple targets in a biological sample are provided. The methods includes contacting the sample with a first probe; physically binding the first probe to a first target; observing a first signal from the first probe; applying a chemical agent to modify the first signal; contacting the sample with a second probe; physically binding the second probe to a second target; and observing a second signal from the second probe. The methods disclosed herein also provide for multiple iterations of binding, observing, signal modification for deriving information about multiple targets in a single sample. An associated kit and device are also provided. | 02-13-2014 |
20140055853 | OPEN TOP MICROFLUIDIC DEVICE FOR MULTIPLEXING - An open top microfluidic device comprising a microfluidic slide carrier and one or more multiplexing stations is provided which allows sequential staining and imaging without the need for using or removing a coverslip on a mounted biological sample. | 02-27-2014 |