Abstract:
A modular device for implanting radioactive seeds in an animal body through needles implanted in the body. Trains of radioactive seeds and non-radioactive spacers are assembled in an assembly unit. The assembly unit comprises a device for determining activity of the seeds with an accuracy that allows distinguishing between different activities within tolerance ranges of specified nominal activities for the seeds. After implantation of the seeds in the body a pre-plan may be recalculated taking into consideration actual activities of seeds implanted. Not correctly composed trains may be disposed of. A post-plan may be determined based upon actually measured activities of implanted seeds.
Abstract:
The invention relates to a method for determining the position of a surgical tool relative to a target volume inside an animal body according to a pre-plan comprising the steps of i) obtaining a plurality of two-dimensional images of said target volume using imaging means, each 2D-image being represented by an image data slice I(x,y,z); ii) reconstructing from said plurality of image data slices I(x,y,z) a three-dimensional image of said target volume using transformation means, said 3D-image being represented by a volumetric image data array V(x,y,z); iii) displaying said three-dimensional image of said target volume to an user using displaying means.
Abstract:
A method for determining the position of a surgical tool relative to a target volume inside an animal body according to a pre-plan. The method includes the steps of i) obtaining a plurality of two-dimensional images of said target volume using an imaging device, each 2D-image being represented by an image data slice I(x,y,z); ii) reconstructing from said plurality of image data slices I(x,y,z) a three-dimensional image of said target volume using a transformation device, said 3D-image being represented by a volumetric image data array V(x,y,z); iii) displaying said three-dimensional image of said target volume to an user using a display.
Abstract:
The invention is related to an apparatus for the representation of a geometrical figure on the surface of a patient's body that is situated on a support, comprising at least one projection device, by which a given geometrical figure can be projected onto the three-dimensional surface of the patient's body, at least one control device and at least one optical sensor device, by which the geometrical figure projected onto the surface of the patient's body can be acquired and the acquired data can be supplied to the control device, wherein the control device is realised to determine the three-dimensional coordinates of the geometrical figure projected onto the patient's body from the data acquired by the sensor device, and wherein the control device is realised to compare the determined three-dimensional coordinates of the geometrical figure projected onto the patient's body with desired three-dimensional coordinates.
Abstract:
A device for effecting radiation treatment of benign or malign prostate hyperplasia. The device includes a catheter probe having an elongated body with a circumferential surface which is inserted within the urethra towards the prostate. The elongated body has a longitudinal bore extending towards at least one outlet opening present in the circumferential surface near the proximal end. A catheter tube is inserted with a proximal sharp end through the longitudinal bore of the elongated body, with an outlet opening and through the urethral wall towards a desired location within the prostate. A pre-planned amount of radiation is delivered via the catheter tube at a location within the prostate for effecting the radiation treatment. The urethral insertion probe allows a quick and accurate positioning of the catheter probe and the catheter tube relative to the prostate without discomforting the patient. The catheter probe is movably accommodated within the urethral probe.
Abstract:
The invention relates to an apparatus for effecting radiation treatment on a pre-selected anatomical portion of an animal body comprising: a group of n hollow treatment channels being inserted at one or more pre-planned positions in said pre-selected anatomical portion; a group of m delivery channels to be connected to a corresponding number m from said group of n hollow treatment channels with m being 2 or more and n being 1 or more; identifying means for identifying which one of said m delivery channels is being connected with which one of said n hollow treatment channels, said identifying means comprising a tracking element accommodated in a tracking channel, said tracking element being intended to be displaced from said tracking channel through each of said interconnected m delivery channels and m treatment channels; storage means for storing k energy emitting sources in a corresponding source-channel, with k≦m; delivery means for temporarily inserting said k energy emitting sources from their source-channels through a corresponding one of said interconnected m delivery channels and m treatment channels towards one of said pre-planned positions in said anatomical portion; coupling means for coupling at least one of said m delivery channels with a corresponding treatment channel.
Abstract translation:本发明涉及一种用于对动物体的预先选择的解剖部分进行辐射治疗的装置,包括:一组n个中空治疗通道,其插入在所述预先选择的解剖部分中的一个或多个预先计划的位置; 一组m个传送通道,其与m个为2个以上且n为1以上的n个中空处理通道组相对应的m个连接; 用于识别所述m个输送通道中的哪一个正在与所述n个中空治疗通道中的一个连接的所述识别装置,所述识别装置包括容纳在跟踪通道中的跟踪元件,所述跟踪元件旨在从所述跟踪通道移位通过 每个所述相互连接的输送通道和m个治疗通道; 存储装置,用于将k个能量发射源存储在相应的源信道中,k <= m; 递送装置,用于将所述k个能量发射源从其源通道中通过所述互连的m个输送通道和m个治疗通道中的相应一个朝向所述解剖部分中的所述预先计划的位置之一插入; 用于将所述m个输送通道中的至少一个与相应的治疗通道联接的联接装置。
Abstract:
The invention relates to a miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy, said X-ray source device at least comprising a vacuum tube accommodated in said housing containing a cathode and an anode spaced apart at some distance from each other; electron freeing means for freeing electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said free electrons; said vacuum tube being at least partly transparent to X-ray radiation emitted by said anode, as well as cooling means for cooling at least said anode.It is an object to provide a miniature X-ray source device having further limited constructional dimensions and an improved control of the working temperature of at least the anode and hence the working conditions of the miniature X-ray source device.According to the invention the miniature X-ray source device is hereto characterised in that said cooling means are cryogenic cooling means. More in particular in a specific embodiment of said miniature X-ray source device said cooling means comprise at least one supply passageway for supplying pressurized gas towards said anode and at least one exhaust passageway for exhausting said pressurized gas from said anode, said supply passageway and said exhaust passageway being interconnected by means of an expansion chamber surrounding at least partly said anode.
Abstract:
The invention relates to a method for determining the position of a surgical tool relative to a target volume inside an animal body according to a pre-plan comprising the steps of i) obtaining a plurality of two-dimensional images of said target volume using imaging means, each 2D-image being represented by an image data slice I(x,y,z); ii) reconstructing from said plurality of image data slices I(x,y,z) a three-dimensional image of said target volume using transformation means, said 3D-image being represented by a volumetric image data array V(x,y,z); iii) displaying said three-dimensional image of said target volume to an user using displaying means.
Abstract:
The invention relates to a solid state brachytherapy applicator for performing radiation therapy treatment in an animal body, said applicator at least comprising an X-ray emitting surface composed of: a vacuum cavity containing a cathode and an anode spaced apart at some distance from each other; emitting means for emitting free electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said emitted free electrons towards said anode; wherein said vacuum cavity being at least partly transparent to X-ray radiation emitted by said anode. The invention furthermore relates to a radiation therapy treatment system for performing radiation therapy treatment in an animal body and to a method for performing radiation therapy treatment in an animal body using a solid state brachytherapy applicator according to the invention. According to the invention said vacuum cavity is bound by first and second plate-shaped elements spaced some distance from each other, said first plate-shaped element serving as cathode and said second plate-shaped element serving as anode.
Abstract:
The invention relates to a method for identifying the location at least one treatment channel from a group of a plurality of treatment channels as wells as a system for effecting radiation treatment on a pre-selected anatomical portion of an animal body.According to the invention the identifying method being characterized by the steps of A selecting at least one of said plurality of treatment channels; B reconstructing the actual location of said selected treatment channel relative to said animal body; and C comparing said reconstructed location said pre-planned plurality of locations. Furthermore the system according to the invention is characterized in that identifying means are present for identifying the location of at least one treatment channel from said group of said plurality of inserted treatment channels and comparing said identified location with one or more of said pre-planned locations present in said treatment plan.