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公开(公告)号：US5151100A
公开(公告)日：1992-09-29
申请号：US547931
申请日：1990-07-03
CPC分类号： A61B18/08 , A61B18/082 , A61F7/123 , A61B17/22 , A61B2017/00084 , A61B2017/00088 , A61B2017/00132 , A61B2017/00274 , A61B2017/22062 , A61B2018/0022 , A61B2018/00547 , A61B2018/00559 , A61B2018/00577 , A61B2018/00791 , A61B2018/044 , A61M2205/366 , A61M25/10
摘要： A catheter device and method for heating tissue, the device having a catheter shaft constructed for insertion into a patient's body, and at least one chamber mounted on the catheter shaft. The catheter shaft has at least one lumen for fluid flow through the shaft. The chambers are defined by walls that are at least in part expandable. Fluid flows, through the lumens, between the chambers and a fluid source outside the body. The chambers can be filled with the fluid after they have been placed within the body. A heating device heats liquid within at least one of the chambers, so that heat is transmitted from the liquid to surrounding tissue by thermal conduction through the wall of the chamber. Means are provided for selectively directing heat transmission toward a selected portion of surrounding tissue. The chambers are fillable with fluid separately from each other, so that the chambers can occupy any of a plurality of possible total volumes. By selecting the total volume of chambers, compression of the tissue can be controlled, and hence the effectiveness of transfer of heat to the tissue can be controlled. According to the method, the catheter device is used to heat tissue from within a duct in a patient's body. The chambers are inserted into the duct and filled with fluid. Liquid is heated within at least one of the chambers, and heat is selectively directed toward a selected portion of surrounding tissue.
摘要翻译： 一种用于加热组织的导管装置和方法，该装置具有构造成用于插入患者体内的导管轴以及安装在导管轴上的至少一个室。 导管轴具有至少一个流体，用于流过轴的流体。 这些室由至少部分可膨胀的壁限定。 流体在腔室之间流过腔室，在体外流过流体源。 在将腔体放置在体内之后，腔室可以填充流体。 加热装置加热至少一个室内的液体，使得热量通过室内壁的热传导从液体传递到周围组织。 提供了用于选择性地将热传递方向导向周围组织的选定部分的装置。 这些室可以彼此分开地填充流体，使得室可以占据多个可能的总体积中的任何一个。 通过选择室的总体积，可以控制组织的压缩，因此可以控制热传递到组织的有效性。 根据该方法，导管装置用于从患者体内的管道内加热组织。 这些室被插入管道并充满流体。 在至少一个室内加热液体，并且热量选择性地朝向周围组织的选定部分。
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公开(公告)号：US5103804A
公开(公告)日：1992-04-14
申请号：US547939
申请日：1990-07-03
申请人： John E. Abele , Charles E. Lennox
发明人： John E. Abele , Charles E. Lennox
IPC分类号： A61B1/00 , A61B1/012 , A61B17/00 , A61B18/00 , A61B18/08 , A61F7/12 , A61M3/02 , A61M13/00 , A61M25/00
CPC分类号： A61F7/123 , A61B18/08 , A61B18/082 , A61B2017/00084 , A61B2018/00982 , A61M13/003 , A61M3/0279
摘要： Device and method for treating tissue inside a patient's body, the device including an endoscopically introducible catheter shaft. The endoscope is constructed for insertion into the patient's body, and has a channel passing through it. The channel terminates at an opening in the distal end of the endoscope. The channel enables the catheter shaft to pass through the endoscope and beyond the distal end of the endoscope. A chamber is mounted on the catheter shaft. The chamber is defined by a flexible wall. The chamber is associated with a first lumen defined by the catheter for fluid flow between the chamber and a fluid source outside of the patient's body. The chamber is fillable with fluid after placement in the patient's body. When the chamber is filled with fluid it has a diameter greater than the diameter of the transverse cross-section of the endoscope channel. According to the method, the endoscope is inserted into a patient's body and is used to view the inside of the patient's body, to determine the location of tissue to be treated. The catheter is inserted into the channel that passes through the endoscope. The chamber is filled with fluid and is positioned at the location of tissue to be treated.
摘要翻译： 用于治疗患者体内组织的装置和方法，所述装置包括内窥镜导入导管轴。 内窥镜被构造成用于插入患者体内，并具有穿过其的通道。 通道在内窥镜的远端的开口处终止。 该通道使得导管轴能够穿过内窥镜并且超过内窥镜的远端。 腔室安装在导管轴上。 室由柔性壁限定。 腔室与由导管限定的第一腔相关联，用于腔室与患者身体外部的流体源之间的流体流动。 放置在患者身体后，腔室可以充满液体。 当腔室充满流体时，其直径大于内窥镜通道的横截面的直径。 根据该方法，将内窥镜插入患者身体，并且用于观察患者身体的内部，以确定待治疗组织的位置。 将导管插入穿过内窥镜的通道中。 腔室充满流体并且位于待治疗组织的位置。
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