Systems for analyzing target biological molecules via sample imaging and delivery of probes to substrate wells

What is this patent about?

’917 is related to the field of spatially encoded biological assays and high-resolution mapping of biological molecules within a tissue sample. The technology addresses the challenge of simultaneously measuring the abundance and distribution of numerous genes or proteins across a solid sample while maintaining the precise spatial context of those molecules. Traditional methods like laser capture microdissection or in situ hybridization often struggle with scalability or the ability to perform high-level multiplexing, creating a need for systems that combine the spatial resolution of imaging with the data density of modern sequencing.

The underlying idea behind ’917 is the use of spatially-defined reagent delivery and digital decoding to link molecular assay results back to their original physical coordinates in a sample. By applying probes—such as antibodies or oligonucleotides—conjugated to unique coding tags in specific spatial patterns, the system effectively “stamps” location information onto the biological targets. This allows the sample to be processed or pooled for high-throughput analysis without losing the map of where each molecule originated, essentially converting spatial orientation into a digital sequence that can be read by a computer.

The claims of ’917 focus on a specialized system for analyzing target biological molecules in a tissue sample using an integrated imaging and reagent delivery architecture. The system utilizes an imager, such as a CCD or CMOS array, to capture a visual representation of the tissue, which is then processed by software to identify specific regions of interest. The hardware is configured to physically interact with these identified regions, specifically by removing a portion of the tissue from a targeted area and transferring it to an external location, such as a well in a substrate, for further analysis.

In practice, the system operates by aligning the visual data of the tissue with a precise reagent delivery system that can be positioned relative to the sample. The software allows a user or an automated process to select a region of interest that is smaller than the entire sample. The system then executes a controlled removal of that specific tissue portion, which contains probes consisting of a capture agent conjugated to an oligonucleotide. By moving this material to a dedicated well associated with that specific region, the system ensures that the molecular data extracted later is tied to a known physical origin.

This approach differs from prior solutions by integrating the selection of a region of interest directly with the physical recovery of tagged probes through a dedicated reagent channel. Unlike bulk extraction methods that lose all spatial nuance, or manual microdissection which is labor-intensive, this system automates the bridge between digital imaging and physical sample handling. It enables a high-throughput workflow where the spatial identity of a biological target is preserved through the physical routing of the sample material to a structured substrate for downstream digital sequencing.