Abrégé

Certain embodiments describe a system, method, and apparatus for multi-spectral photoacoustic imaging. A method, for example, can include receiving multi-spectral photoacoustic image data from a photoacoustic imaging system. The method can also include pre-processing the multi-spectral photoacoustic image data. The pre-processing can comprise determining a number of significant components above a noise floor of the multi-spectral photoacoustic image data. In addition, the method can include detecting tissue chromophores based on the number of significant components from the multi-spectral photoacoustic image data using an unsupervised spectral unmixing process. The unsupervised spectral unmixing process can include clustering and windowing of the multi-spectral photoacoustic image data. The method can further include displaying the detected tissue chromophores in an abundance map.

Classes IPC  ?

• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus
• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
• G16H 30/40 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le traitement d’images médicales, p. ex. l’édition

Abrégé

In one embodiment, a photoacoustic imaging system receives user input to specify one or more imaging wavelengths, and a target number of image frames to be taken of a target tissue region. The specified imaging wavelengths are set to capture at least two different photoabsorbing molecules in the target tissue. The photoacoustic imaging system takes image frames at the specified wavelengths, while the system also receives ECG and respiration data of the subject. Image frames are discarded based on the respiration data, and the other image frames are sorted into a plurality of slots corresponding to different points of the cardiac cycle from the ECG data. The system creates a composite image from the one or more wavelengths to show the target tissue of interest through the different points of the cardiac cycle.

Classes IPC  ?

• A61B 5/0205 - Évaluation simultanée de l'état cardio-vasculaire et de l'état d'autres parties du corps, p. ex. de l'état cardiaque et respiratoire
• A61B 5/053 - Mesure de l'impédance ou de la conductivité électrique d'une partie du corps
• A61B 5/113 - Mesure du mouvement du corps entier ou de parties de celui-ci, p. ex. tremblement de la tête ou des mains ou mobilité d'un membre se produisant au cours de la respiration
• A61B 5/145 - Mesure des caractéristiques du sang in vivo, p. ex. de la concentration des gaz dans le sang ou de la valeur du pH du sang
• A61B 8/08 - Applications cliniques

Abrégé

Apparatuses and associated methods for mounting PCBs and other electronics boards in portable medical equipment and/or other portable and non-portable electronic devices are disclosed herein. In some embodiments, the technology disclosed herein can provide PCB mounting systems that isolate the PCB from detrimental shock, vibration, and/or strain, while also providing electrical ground paths that greatly reduce EMI and other electrical disturbances. Some embodiments of the mounting systems described herein include both elastomeric (e.g., rubber) components and resilient metallic grounding members that, when assembled together, provide favorable shock mounting as well as robust electrical grounding without the inconvenience of using separate shock mounts, grounding straps, etc.

Classes IPC  ?

• G06F 1/16 - Détails ou dispositions de structure
• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques

Abrégé

An ultrasound imaging system is configured to interface with a dual frequency ultrasound transducer having one or more low frequency ultrasound arrays and one or more high frequency ultrasound arrays. The imaging system produces driving pulses for both the high frequency ultrasound array and the low frequency ultrasound imaging array. Analog echo signals are processed to produce a low frequency ultrasound image and a high frequency ultrasound image that are simultaneously displayed. Tissue shown in the high frequency ultrasound image is a portion of the tissue shown in the low frequency ultrasound image.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
• A61B 8/08 - Applications cliniques

Abrégé

An ultrasound imaging system includes a cine buffer in which image frames produced during an examination are stored. A processor is programmed to select one or more image frames from the cine buffer for presentation to an operator for approval and inclusion in a patient record or other report. The operator can accept the proposed image frames or can select one or more other image frames from the cine buffer. The processor may select image frames at spaced intervals in the cine buffer for presentation. Alternatively, the processor compares image frames in the cine buffer with one or more target image frames. Image frames that are similar to the target image frames are presented to the operator to confirm. Alternatively, image frames can be selected by the processor that contain a specific feature or that are similar to image frames that were previously selected by the operator when performing a particular type of examination.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores

Abrégé

Systems and methods for producing ultrasound images are disclosed herein. In one embodiment, ultrasound image data are acquired in discrete time increments at one or more positions relative to a subject. Control points are added by a user for two or more image frames and a processor interpolates the location of the control points for image frames obtained at in-between times.

Classes IPC  ?

• A61B 8/08 - Applications cliniques

Abrégé

Disclosed is a medical device that includes a phased array ultrasound transducer. The transducer includes a number of transducer elements that are electrically coupled to corresponding electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage corresponding transducer elements though a conductive surface formed on outwardly extending ribs of a frame that holds the ultrasound array. In one embodiment, the phased array is forward facing in the medical device and has an element pitch of 0.75 lambda or less and more preferably 0.6 lambda or less. In one embodiment, the transducer is rotatable over an angle of +/- 90 degrees to provide a 360 degree view of tissue surrounding the distal end of the device.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores

Abrégé

An ultrasound transducer has an array of transducer elements that are electrically coupled to electrical conductors. In one embodiment, the conductors are included in a flex circuit and engage a conductive surface formed on a number of outwardly extending ribs on a frame that holds the ultrasound array. In one embodiment, the flex circuit includes an alignment feature that engages a corresponding registration feature on the frame so that the traces on the flex circuit align with the ribs on the frame.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores

Abrégé

High frequency ultrasound transducers configured for use with high frequency ultrasound diagnostic imaging systems are disclosed herein. In one embodiment, an ultrasound transducer includes a concave lens having an average thickness in a center portion that that is substantially equal to an odd multiple a 1/4- wavelength of the center frequency of the ultrasound transducer.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores

Abrégé

Systems and methods which implement a plurality of different imaging signatures in generating an image frame are shown. A first imaging signature may be configured for providing relatively high quality images with respect to subsurface regions of living tissue, for example, whereas a second imaging signature may be configured for providing relatively high quality images with respect to interventional instruments inserted into living tissue at a steep angle. Image sub-frames generated using each such different imaging signature are blended to form a frame of the final image providing a relatively high quality image of various objects within the volume being imaged.

Classes IPC  ?

• A61B 8/00 - Diagnostic utilisant des ondes ultrasonores, sonores ou infrasonores
• A61B 8/08 - Applications cliniques