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公开(公告)号：EP0111386A3
公开(公告)日：1985-06-12
申请号：EP83306402
申请日：1983-10-21
IPC分类号： A61F07/00
CPC分类号： A61N7/02 , A61B2017/00084 , A61B2017/22028
摘要： An ultrasound unit for the clinical application of hyperthermia to tumour cells in soft tissues is provided. The ultrasound hyperthermic unit includes in one aspect an array of sonic transducers (1) radially disposed about an axis and angled to direct sonic energy (12) towards said axis at a point remote from said array, each transducer being adapted for angular movement relative to the other transducers thereby to allow adjustment of the shape of the acoustic focus. The array is computer controlled both with regard to acoustic focus and with regard to the energy imparted by each member of the array, said control being mediated by temperature sensing means (40) adjacent a tumour. This ultrasound unit may be associated with a heat treatment tank (51, 31) including a flexible membrane (32, 52) which may overlie a tumour, thereby to locally raise the temperature and reduce the amount of ultrasonic power required to achieve a desired temperature. Suitable adjustment of the focused energy raises the temperature of the tumour cells above viability, whereas the same energy density applied to healthy cells still allows viability by virtue of the relatively greater heat dissipation ability, and the geometric properties of a single focused transducer, or a multiply focused array.
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公开(公告)号：EP0198703A3
公开(公告)日：1988-10-26
申请号：EP86302765
申请日：1986-04-14
CPC分类号： A61F9/00745 , A61B17/22012 , A61B2217/005 , A61B2217/007
摘要： Apparatus for removing biological material from a body thereof comprising a hollow tubular elongate member, one end of which can engage biological material to be removed, a casing in which a portion of the tubular member is mounted for longitudinal sliding movement, a motor which is connected to the casing and has a rotatable drive shaft, means for coupling the rotation of the drive shaft to the tubular member so as longitudinally to vibrate the tubular member and means for withdrawing removed biological material up to the tubular member from the said end thereof.
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公开(公告)号：EP0111386B1
公开(公告)日：1987-11-19
申请号：EP83306402.5
申请日：1983-10-21
IPC分类号： A61F7/00
CPC分类号： A61N7/02 , A61B2017/00084 , A61B2017/22028
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公开(公告)号：EP0198703A2
公开(公告)日：1986-10-22
申请号：EP86302765.2
申请日：1986-04-14
CPC分类号： A61F9/00745 , A61B17/22012 , A61B2217/005 , A61B2217/007
摘要： Apparatus for removing biological material from a body thereof comprising a hollow tubular elongate member, one end of which can engage biological material to be removed, a casing in which a portion of the tubular member is mounted for longitudinal sliding movement, a motor which is connected to the casing and has a rotatable drive shaft, means for coupling the rotation of the drive shaft to the tubular member so as longitudinally to vibrate the tubular member and means for withdrawing removed biological material up to the tubular member from the said end thereof.
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公开(公告)号：EP0111386A2
公开(公告)日：1984-06-20
申请号：EP83306402.5
申请日：1983-10-21
IPC分类号： A61F7/00
CPC分类号： A61N7/02 , A61B2017/00084 , A61B2017/22028
摘要： An ultrasound unit for the clinical application of hyperthermia to tumour cells in soft tissues is provided. The ultrasound hyperthermic unit includes in one aspect an array of sonic transducers (1) radially disposed about an axis and angled to direct sonic energy (12) towards said axis at a point remote from said array, each transducer being adapted for angular movement relative to the other transducers thereby to allow adjustment of the shape of the acoustic focus. The array is computer controlled both with regard to acoustic focus and with regard to the energy imparted by each member of the array, said control being mediated by temperature sensing means (40) adjacent a tumour. This ultrasound unit may be associated with a heat treatment tank (51, 31) including a flexible membrane (32, 52) which may overlie a tumour, thereby to locally raise the temperature and reduce the amount of ultrasonic power required to achieve a desired temperature.
Suitable adjustment of the focused energy raises the temperature of the tumour cells above viability, whereas the same energy density applied to healthy cells still allows viability by virtue of the relatively greater heat dissipation ability, and the geometric properties of a single focused transducer, or a multiply focused array.
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