Method and apparatus for ultrasonic medical treatment with optimum ultrasonic irradiation control
First Claim
1. An ultrasonic medical treatment apparatus, comprising:
- an applicator having an ultrasonic wave generation source for irradiating ultrasonic waves to a treatment target portion within a body to be examined;
energy obtaining means for obtaining an ultrasonic energy of the ultrasonic waves irradiated at a tissue boundary surface of the body to be examined; and
control means for controlling the applicator such that the ultrasonic energy at the tissue boundary surface obtained by the energy obtaining means becomes less than a prescribed threshold.
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Abstract
An ultrasonic medical treatment scheme for optimally controlling the irradiation energy of the intense ultrasonic waves. In this scheme, an ultrasonic energy of the ultrasonic waves irradiated at a tissue boundary surface such as a body surface is obtained, and at least one of the driving power and the irradiation time of the ultrasonic wave generation source in the applicator is controlled such that the ultrasonic energy at the tissue boundary surface becomes less than a prescribed threshold which is determined in view of an influence on the tissue boundary surface due to the ultrasonic waves. In addition, the ultrasonic energy of the ultrasonic waves irradiated at a focal point of the ultrasonic waves can also be obtained and the applicator can be controlled such that the ultrasonic energy at the focal point becomes greater than another prescribed threshold determined in view of a medical treatment effect at the focal point due to the ultrasonic waves at the same time.
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Citations
20 Claims
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1. An ultrasonic medical treatment apparatus, comprising:
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an applicator having an ultrasonic wave generation source for irradiating ultrasonic waves to a treatment target portion within a body to be examined; energy obtaining means for obtaining an ultrasonic energy of the ultrasonic waves irradiated at a tissue boundary surface of the body to be examined; and control means for controlling the applicator such that the ultrasonic energy at the tissue boundary surface obtained by the energy obtaining means becomes less than a prescribed threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of ultrasonic medical treatment, comprising the steps of:
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irradiating ultrasonic waves from an applicator having an ultrasonic wave generation source to a treatment target portion within a body to be examined; obtaining an ultrasonic energy of the ultrasonic waves irradiated at a tissue boundary surface of the body to be examined; and controlling the applicator such that the ultrasonic energy at the tissue boundary surface obtained at the obtaining step becomes less than a prescribed threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification