Samantree Medical Sa

Ecole Polytechnique Federale De Lausanne

Ecole Polytechnique Féderale De Lausanne (epfl)

Ecole Polytechnique Federale De Lausanne (epfl) Epfl-tto

Bastien Rachet

Etienne Shaffer

Jonathan Abel Pirolet

Diego Joss

Aurèle Timothée Horisberger

Frédéric Schmitt

Davor Kosanic

Andrey Naumenko

Juergen Brugger

Victor Cadarso

Fabrice Merenda

René Salathe

Andrew Logvinov

Disclosed herein are sample dishes for use with microscopes that are simple to mount on a microscope and facilitate easy manipulation of tissue samples disposed thereon during imaging as well as methods of their use. A sample dish comprises an optical interface and, optionally, a support member that holds the optical interface. The optical interface of a sample dish is suitably transparent and planar such that a focal plane of a microscope can reside uniformly at or within a surface of a sample during imaging. In certain embodiments, a support member comprises a dish for holding excess fluid. In certain embodiments, a sample dish comprises separation ribs. In certain embodiments, a sample dish comprises one or more manipulation members (e.g., tabs). In certain embodiments, a sample dish is used with an imaging artifact reducing fluid.

Sample dishes for use in microscopy and methods of their use

Systems for imaging of samples, for example, using an array of micro optical elements and methods of their use. In some embodiments, an optical chip including an array of micro optical elements moves relative to an imaging window and a detector in order to scan over a sample to produce an image. A focal plane can reside within a sample or on its surface during imaging. In some embodiments, detecting optics are used to detect back-emitted light collected by an array of micro optical elements that is generated by an illumination beam impinging on a sample. In some embodiments, an imaging system has a large field of view and a large optical chip such that an entire surface of a sample can be imaged quickly. In some embodiments, a sample is accessible by a user during imaging due to the sample being exposed.

Imaging systems with micro optical element arrays and methods of specimen imaging

Systems and methods to identify and/or reduce or eliminate sample motion artifacts are disclosed. Sample motion artifacts may be reduced or eliminated using scan patterns where an acquisition time difference between when perimeter pixels in adjacent tiles are acquired is reduced, as compared to a conventional raster scan to reduce or eliminate discontinuities that would otherwise appear at tile boundaries in an image. In some embodiments, test images acquired using relatively small test scan patterns or intensities of test points acquired at different times may be compared to determine whether sample motion has occurred. In some embodiments, intensity of adjacent pixels at a tile boundary are compared. In some embodiments, intensity of one or more single pixels is monitored over time to determine whether sample motion has occurred over a period of time. In some embodiments, a flattening or reshaping tool may be used to suppress sample motion during imaging.

Systems and methods for imaging samples with reduced sample motion artifacts

The disclosed technology brings histopathology into the operating theatre, to enable real-time intra-operative digital pathology. The disclosed technology utilizes confocal imaging devices image, in the operating theatre, 'optical slices' of fresh tissue&#x2014;without the need to physically slice and otherwise process the resected tissue as required by frozen section analysis (FSA). The disclosed technology, in certain embodiments, includes a simple, operating-table-side digital histology scanner, with the capability of rapidly scanning all outer margins of a tissue sample (e.g., resection lump, removed tissue mass). Using point-scanning microscopy technology, the disclosed technology, in certain embodiments, precisely scans a thin 'optical section' of the resected tissue, and sends the digital image to a pathologist rather than the real tissue, thereby providing the pathologist with the opportunity to analyze the tissue intra-operatively. Thus, the disclosed technology provides digital images with similar information content as FSA, but faster and without destroying the tissue sample itself.

Systems and methods for in-operating-theatre imaging of fresh tissue resected during surgery for pathology assessment

Exemplary systems are for imaging of samples, for example using an array of micro optical elements. In some embodiments, an optical chip including an array of micro optical elements moves relative to an imaging window and a detector in order to scan over a sample to produce an image. A focal plane can reside within a sample or on its surface during imaging. In some embodiments, detecting optics are used to detect back-emitted light collected by an array of micro optical elements that is generated by an illumination beam impinging on a sample. In some embodiments, an imaging system has a large field of view and a large optical chip such that an entire surface of a sample can be imaged quickly. In some embodiments, a sample is accessible by a user during imaging due to the sample being exposed.

Disclosed herein are systems for imaging of samples using an array of micro optical elements and methods of their use. In some embodiments, an optical chip comprising an array of micro optical elements moves relative to an imaging window and a detector in order to scan over a sample to produce an image. A focal plane can reside within a sample or on its surface during imaging. Detecting optics are used to detect back-emitted light collected by an array of micro optical elements that is generated by an illumination beam impinging on a sample. In some embodiments, an imaging system has a large field of view and a large optical chip such that an entire surface of a sample can be imaged quickly. In some embodiments, a sample is accessible by a user during imaging due to the sample being exposed while disposed on or over an imaging window.

The present invention relates to a reflective optical objective () comprising: &#x2014;a first reflecting element () including a front surface () and a hack surface (), the front surface () including a convex reflecting surface (); and &#x2014;a second reflecting element () including a concave reflecting surface () facing the convex reflecting surface () of the first reflecting element (), the second reflecting element () including a transmissive section () permitting electromagnetic radiation to pass through the concave reflecting surface () of the second reflecting element () to the first reflecting element (). The reflective optical objective () is characterized in that the reflective optical objective () includes a carrier material () embedding at least the front surface () of the first reflecting element () and defining the distance (d) between the first () and second () reflecting elements.

Reflective optical objective

The disclosed technology brings histopathology into the operating theater, to enable real-time intra-operative digital pathology. The disclosed technology utilizes confocal imaging devices image, in the operating theater, 'optical slices' of fresh tissue&#x2014;without the need to physically slice and otherwise process the resected tissue as required by frozen section analysis (FSA). The disclosed technology, in certain embodiments, includes a simple, operating-table-side digital histology scanner, with the capability of rapidly scanning all outer margins of a tissue sample (e.g., resection lump, removed tissue mass). Using point-scanning microscopy technology, the disclosed technology, in certain embodiments, precisely scans a thin 'optical section' of the resected tissue, and sends the digital image to a pathologist rather than the real tissue, thereby providing the pathologist with the opportunity to analyze the tissue intra-operatively. Thus, the disclosed technology provides digital images with similar information content as FSA, but faster and without destroying the tissue sample itself.

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Lausanne, Switzerland

Bastien Rachet