Elastography device and method
AssigneeEchosens
InventorsLaurent Sandrin, Hugo Lorée, Véronique Miette
Life of this patent
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Abstract
A device for measuring the stiffness of an organ of a subject, the measuring device including a measurement casing which includes a) a shear wave emitter adapted to generate a low-frequency elastic wave, and b) an ultrasound transducer adapted to acquire ultrasound signals to determine the stiffness of the organ based on the propagation of the generated low-frequency elastic wave, and an applicator extending from the measurement casing, the applicator being adapted to be placed against a part of a body of the subject, the applicator including a position maintenance device for maintaining the transducer perpendicular to the part of the body of the subject.
Claims16
A device for measuring a stiffness of an organ of a subject, the measuring device comprising:
- a measurement casing which comprises:
- a) a shear wave emitter adapted to generate a low-frequency elastic wave, and
- b) an ultrasound transducer adapted to acquire ultrasound signals to determine the stiffness of the organ based on a propagation of the generated low-frequency elastic wave, and
- an applicator extending from the measurement casing, the applicator being adapted to be placed against a part of a body of the subject and configured to maintain the ultrasound transducer perpendicular to the part of the body of the subject, the applicator comprising (a) a side surface comprising one or more wall portions extending away from the measurement casing about an ultrasound transducer axis and defining a compartment that comprises the ultrasound transducer, the one or more wall portions being inclined with respect to the ultrasound transducer axis such that a lateral extent of the compartment increases from the measurement casing toward the part of the body of the subject and (b) a supporting surface connected to the side surface and adapted to be placed against the part of the body of the subject during measurement of the stiffness.
A device for measuring a stiffness of an organ of a subject, the measuring device comprising:
- a measurement casing which comprises:
- a) a shear wave emitter adapted to generate a low-frequency elastic wave, and
- b) an ultrasound transducer adapted to acquire ultrasound signals to determine the stiffness of the organ based on a propagation of the generated low-frequency elastic wave, and
- an applicator extending from the measurement casing, the applicator being adapted to be placed against a part of a body of the subject and configured to maintain the ultrasound transducer perpendicular to the part of the body of the subject,
- wherein the applicator comprises a mounting system adapted to enable a rotation of the applicator around the ultrasound transducer in order to adjust the position of the applicator with respect to the ultrasound transducer.
A device for measuring a stiffness of an organ of a subject, the measuring device comprising:
- a measurement casing which comprises:
- a) a shear wave emitter adapted to generate a low-frequency elastic wave, and
- b) an ultrasound transducer adapted to acquire ultrasound signals to determine the stiffness of the organ based on a propagation of the generated low-frequency elastic wave, and
- an applicator extending from the measurement casing, the applicator being adapted to be placed against a part of a body of the subject and configured to maintain the ultrasound transducer perpendicular to the part of the body of the subject,
- wherein the applicator comprises a side surface extending from a surface of the measurement casing, the side surface defining a compartment which comprises the ultrasound transducer,
- the side surface comprising an end surface with at least a first surface portion and a second surface portion, the first surface portion presenting a concave curvature with respect to a plane orthogonal to an ultrasound transducer axis, the second surface portion presenting a convex curvature with respect to a plane orthogonal to the ultrasound transducer axis.
Dependencies are inferred from the claim text.