Method for treating interstitial tissue associated with microwave
thermal therapy
    2.
    发明授权
    Method for treating interstitial tissue associated with microwave thermal therapy 失效
    治疗与微波热疗相关的间质组织的方法

    公开(公告)号:US5330518A

    公开(公告)日:1994-07-19

    申请号:US847894

    申请日:1992-03-06

    摘要: A method of selectively treating interstitial tissue following microwave thermal therapy includes an intraurethral Foley-type catheter shaft. The catheter shaft contains a microwave antenna which is capable of generating a cylindrically symmetrical thermal pattern in tissue, within which temperatures are capable of exceeding 45.degree. C. The antenna is surrounded by means within the shaft for asymmetrically absorbing electromagnetic energy emitted by the antenna so as to concentrate thermal energy on a first side of the shaft. This asymmetrical absorption alters the thermal pattern generated by the microwave antenna, making it possible to focus microwave thermal therapy toward undesirous tissue and away from healthy tissue. The absorption means is also capable of absorbing heat from adjacent tissue by thermal conduction. Operation of the absorption means upon the conclusion of microwave thermal therapy aids in reducing edema of the treated tissues caused by the elevated temperatures of those tissues.

    摘要翻译: 微波治疗后选择性治疗间质组织的方法包括尿道内Foley型导管轴。 导管轴包含能够在组织中产生圆柱对称热图案的微波天线,其中温度可以超过45℃。天线被轴内的装置包围,用于不对称地吸收由天线发射的电磁能量 以将热能集中在轴的第一侧上。 这种不对称吸收改变了由微波天线产生的热图,使得可以将微波热治疗聚焦到不想要的组织并远离健康组织。 吸收装置还能够通过热传导从相邻组织吸收热量。 在微波热疗结束时,吸收手段的操作有助于减少由这些组织升高的温度引起的治疗组织的水肿。

    Device and method for asymmetrical thermal therapy with helical dipole
microwave antenna
    4.
    发明授权
    Device and method for asymmetrical thermal therapy with helical dipole microwave antenna 失效
    用螺旋偶极微波天线进行非对称热疗的装置和方法

    公开(公告)号:US5916241A

    公开(公告)日:1999-06-29

    申请号:US903051

    申请日:1997-07-30

    摘要: An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45.degree. C. The antenna, which is positioned within the shaft, is surrounded by means within the shaft for absorbing thermal energy conducted by the tissue and asymmetrically absorbing electromagnetic energy emitted by the antenna--a greater amount of electromagnetic energy being absorbed on one side of the shafts. This asymmetrical absorption alters the thermal pattern generated by the microwave antenna, making it cylindrically asymmetrical, which effectively focuses microwave thermal therapy toward undesirous benign tumorous tissue growth of a prostate anterior and lateral to the urethra, and away from healthy tissue posterior to the urethra.

    摘要翻译: 尿道内的Foley型导管轴包含能够产生圆柱形对称热图案的微波天线,其中温度可以超过45℃。定位在轴内的天线由轴内的装置包围, 吸收由组织传导的热能并且不对称地吸收由天线发射的电磁能量 - 在轴的一侧上吸收更多量的电磁能。 这种不对称吸收改变了由微波天线产生的热图,使其成圆柱形不对称,这有效地将微波热治疗聚焦到尿道前列腺前列腺前列腺前列腺良性肿瘤组织生长,远离尿道后方的健康组织。

    Device and method for asymmetrical thermal therapy with helical dipole
microwave antenna
    5.
    发明授权
    Device and method for asymmetrical thermal therapy with helical dipole microwave antenna 失效
    用螺旋偶极微波天线进行非对称热疗的装置和方法

    公开(公告)号:US5464445A

    公开(公告)日:1995-11-07

    申请号:US208642

    申请日:1994-03-09

    摘要: An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45.degree. C. The antenna, which is positioned within the shaft, is surrounded by means within the shaft for absorbing thermal energy conducted by the tissue and asymmetrically absorbing electromagnetic energy emitted by the antenna--a greater amount of electromagnetic energy being absorbed on one side of the shaft. This asymmetrical absorption alters the thermal pattern generated by the microwave antenna, making it cylindrically asymmetrical, which effectively focuses microwave thermal therapy toward undesirous benign tumorous tissue growth of a prostate anterior and lateral to the urethra, and away from healthy tissue posterior to the urethra.

    摘要翻译: 尿道内的Foley型导管轴包含能够产生圆柱形对称热图案的微波天线,其中温度可以超过45℃。定位在轴内的天线由轴内的装置包围, 吸收由组织传导的热能并且不对称地吸收天线发射的电磁能量 - 在轴的一侧上吸收更大量的电磁能。 这种不对称吸收改变了由微波天线产生的热图,使其成圆柱形不对称,这有效地将微波热治疗聚焦到尿道前列腺前列腺前列腺前列腺良性肿瘤组织生长,远离尿道后方的健康组织。

    Device for asymmetrical thermal therapy with helical dipole microwave
antenna

    公开(公告)号:US5326343A

    公开(公告)日:1994-07-05

    申请号:US847718

    申请日:1992-03-06

    摘要: An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45.degree. C. The antenna, which is positioned within the shaft, is surrounded by means within the shaft for absorbing thermal energy conducted by the tissue and asymmetrically absorbing electromagnetic energy emitted by the antenna--a greater amount of electromagnetic energy being absorbed on one side of the shaft. This asymmetrical absorption alters the thermal pattern generated by the microwave antenna, making it cylindrically asymmetrical, which effectively focuses microwave thermal therapy toward undesirous benign tumorous tissue growth of a prostate anterior and lateral to the urethra, and away from healthy tissue posterior to the urethra.

    Device for asymmetrical thermal therapy with helical dipole microwave
antenna
    9.
    发明授权
    Device for asymmetrical thermal therapy with helical dipole microwave antenna 失效
    用螺旋偶极微波天线进行不对称热疗的装置

    公开(公告)号:US5545137A

    公开(公告)日:1996-08-13

    申请号:US413392

    申请日:1995-03-30

    摘要: An intraurethral, Foley-type catheter shaft contains a microwave antenna capable of generating a cylindrically symmetrical thermal pattern, within which temperatures are capable of exceeding 45.degree. C. The antenna, which is positioned within the shaft, is surrounded by means within the shaft for absorbing thermal energy conducted by the tissue and asymmetrically absorbing electromagnetic energy emitted by the antenna--a greater amount of electromagnetic energy being absorbed on one side of the shaft. This asymmetrical absorption alters the thermal pattern generated by the microwave antenna, making it cylindrically asymmetrical, which effectively focuses microwave thermal therapy toward undesirous benign tumorous tissue growth of a prostate anterior and lateral to the urethra, and away from healthy tissue posterior to the urethra.

    摘要翻译: 尿道内的Foley型导管轴包含能够产生圆柱形对称热图案的微波天线,其中温度可以超过45℃。定位在轴内的天线由轴内的装置包围, 吸收由组织传导的热能并且不对称地吸收天线发射的电磁能量 - 在轴的一侧上吸收更大量的电磁能。 这种不对称吸收改变了由微波天线产生的热图,使其成圆柱形不对称,这有效地将微波热治疗聚焦到尿道前列腺前列腺前列腺前列腺良性肿瘤组织生长,远离尿道后方的健康组织。