Abstract: The present invention belongs to the field of mechanical transmission technology, and proposes a non-orthogonal elliptical toroidal worm gear pair, including an involute cylindrical gear and an elliptical toroidal worm formed by a primary envelope of the involute cylindrical gear; both adopt spatial non-orthogonal transmission, and the shaft angle satisfies the self-locking condition and the restriction condition of minimum tooth top width; the toroidal generatrix of the elliptical toroidal worm is elliptical, which can increase the number of meshing teeth and the total length of instantaneous contact line. A non-orthogonal elliptical toroidal worm gear pair proposed in this invention has the characteristics of toroidal worm drive and can realize the whole facewidth of the gear to participate in the meshing drive.

Abstract: The present disclosure provides an ultrasound imaging method, comprising acquiring an ultrasound echo signal of a subject to be scanned, and generating an ultrasound image on the basis of the ultrasonic echo signal; identifying a section of the subject to be scanned that corresponds to the ultrasound image; determining a first anatomical feature in the ultrasound image; and determining a second anatomical feature in the ultrasound image, the determination of the second anatomical feature being at least partially based on the positional relationship between the first anatomical feature and the second anatomical feature in the section. The present disclosure also provides an ultrasound imaging system and a non-transitory computer-readable medium.

Abstract: Methods and systems are provided for performing automated measurements on medical images. In one example, a method includes acquiring a first ultrasound image and a second ultrasound image in accordance with a patient exam workflow, wherein the patient exam workflow calls for one or more measurements including a first measurement to be obtained on at least the first ultrasound image, automatically assessing whether the first ultrasound image is suitable for obtaining the first measurement during a time period where the second ultrasound image is being acquired, and if the first ultrasound image is automatically assessed as being unsuitable for obtaining the first measurement, automatically prompting the user, while the second ultrasound image is still being acquired, to reacquire the first ultrasound image.

Abstract: This application relates to a cover assembly of a secondary battery. The cover assembly includes a cover plate with an air hole; a blocker inserted into and blocking the air hole; a sealing member disposed between the blocker and the cover plate configured to seal a gap between the blocker and the cover plate; and a fastener disposed inside the air hole. The fastener is connected to the cover plate, the blocker is connected to the cover plate through the fastener. The fastener is configured to deform in response to a temperature rise, so that the blocker stops blocking the air hole. The blocker stops blocking the air hole as a temperature inside a housing rises, to discharge gas from the housing through the air hole. In this way, the secondary battery can be prevented from an explosion, while partial heat is taken away through gas discharge.

Abstract: Provided in the present invention are a medical imaging method, apparatus, and system according to various embodiments. According to an embodiment, the medical imaging method includes performing image segmentation of a medical image acquired from a current scan containing a heart region of an examined subject to determine a heart wall region in said medical image. The medical imaging method includes generating a local elastic image of said heart wall region. And the medical imaging method includes displaying said local elastic image at the position of said heart wall region in said medical image in an overlapping manner and in real-time.

Abstract: Methods and systems are provided for performing automated measurements on medical images. In one example, a method includes acquiring a first ultrasound image and a second ultrasound image in accordance with a patient exam workflow, wherein the patient exam workflow calls for one or more measurements including a first measurement to be obtained on at least the first ultrasound image, automatically assessing whether the first ultrasound image is suitable for obtaining the first measurement during a time period where the second ultrasound image is being acquired, and if the first ultrasound image is automatically assessed as being unsuitable for obtaining the first measurement, automatically prompting the user, while the second ultrasound image is still being acquired, to reacquire the first ultrasound image.