Method for operating a device for treatment of a tissue and device for treatment of a tissue
AssigneeTheraclion SA
InventorFrancois LACOSTE
Life of this patent
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Abstract
A method of operating a device (1) for treatment of a tissue (6) of a living being and such a device (1) including a transducer (2) comprising at least two subtransducers (2′, 2″), each for emitting a sub-beam (8″) of ultrasound waves, preferably high intensity focused ultrasound waves, for irradiating the tissue (6). Each of the sub-beams (8″) is focused on or focusable onto a focal point (F). In order to reduce skin burns, the intersection Area (Asi) of a skin surface (7) for each sub-beam (8″) is evaluated and a power (Psi) and/or a duration (tsi) of the irradiation, for every sub-transducer (2′, 2″), is determined as a rate of the total power (Ptotal) or duration (ttotal) depending from the evaluated intersection area (Asi).
Claims17
1-16. (canceled)
A method of operating a device for treatment of a tissue of a living being, the device comprising:
- a transducer comprising at least two sub-transducers, each for emitting a sub-beam of ultrasound waves for irradiating the tissue, and each of the sub-beams being focused on or focusable onto a focal point;
- wherein the method includes the following steps:
- positioning the transducer such that at least one focal point of a sub-beam is located within the tissue to be treated;
- defining a total power and a duration of the irradiation to be delivered to the tissue;
- evaluating an intersection area of a skin surface with each sub-beam;
- and
- determining at least one of the power and the duration of the irradiation for every sub-transducer as a rate of the total power or duration depending from the evaluated intersection area.
A device for treatment of a tissue of a living being comprising:
- a transducer comprising at least two sub-transducers, each for emitting a sub-beam of ultrasound waves for irradiating the tissue, and each of the sub-beams being focused on or focusable onto a focal point,
- wherein the device further comprises:
- means for determining an intersection area of a skin surface with each sub-beam, and
- control means for controlling the device, and the control means being able to determine, based on a total power and a duration of the irradiation to be delivered to the tissue, at least one of a power and a duration of the irradiation for every sub-transducer as a rate of the total power or a duration, depending from the evaluated intersection area.
A method of operating a device for treatment of a tissue of a living being, the device comprising:
- at least one transducer for emitting a beam of ultrasound waves for irradiating the tissue, and the beam being focused on or focusable onto a focal point;
- and
- an imaging device having at least an imaging plane intersecting the focal point;
- wherein the method includes the following step:
- positioning the at least one transducer such that the focal point is located within the tissue to be treated;
- orienting the at least one transducer such that the distance between the focal point and the skin surface intersected by the beam is as constant as possible throughout the whole skin surface, whereby the focal point is not moved.
A device for treatment of a tissue of a living being, the device comprising:
- at least one transducer for emitting a beam of ultrasound waves for irradiating the tissue, and the beam being focused on or focusable onto a focal point;
- an imaging device having at least an imaging plane intersecting the focal point;
- wherein the device further comprises:
- means for positioning the at least one transducer such that the focal point is located within the tissue to be treated;
- means for orienting the at least one transducer such that a distance between the focal point and the skin surface intersected by the beam is as constant as possible throughout an entire skin surface, whereby the focal point is not moved.
Dependencies are inferred from the claim text.