Summary of the invention
The present invention provides a kind of radiotherapy system; Rotate simultaneously and cause the problem of the imaging effect difference of CT imaging device with CT imaging device in the radiotherapy system that solves existing band CT imaging device and treatment head, and because the technical problem of CT forms images and the radiotherapy requisite space is not allowed to influence each other effect.
In order to solve above technical problem, the technical scheme that the present invention takes is:
A kind of radiotherapy system comprises treatment head, the treatment head support that is connected with the treatment head, drives treatment cephalomotor slew gear, therapeutic bed and CT imaging device, it is characterized in that:
Said CT imaging device comprises CT imaging ring, is connected and drives the CT driving mechanism that said CT imaging ring rotates and be used to support the CT bracing frame that CT forms images and encircles with said CT imaging ring;
Said therapy system also comprises shared support, and said treatment head support is connected with said shared support bearing, and said CT bracing frame is connected to guide rail to the X of guide rail and horizontal direction through the Z on the vertical direction with said shared support;
Said therapeutic bed comprises pedestal and body support plate, and said body support plate is connected to guide rail through the Y along the mesopore axis direction with said pedestal, and said pedestal is fixedly connected with said CT bracing frame;
Described shared support, treatment head support, CT bracing frame are provided with the space that allows therapeutic bed to walk, and communicate with the mesopore of CT imaging ring.
Said radiotherapy system also comprises nuclear medical imaging apparatus, and said nuclear medical imaging apparatus is installed on the treatment head support through slide block.
Said nuclear medical imaging apparatus is gamma camera, SPECT or PET.
Said treatment head support is an annular.
Said shared support is an annular.
Said shared support is the U type.
Said Y divides first guide rail and second guide rail to guide rail, connects first respectively and drives and second driving, and first guide rail is arranged on the said pedestal; And connect first and drive; Said second guide rail is slidingly connected on first guide rail, and connects second driving, and said second guide rail connects said body support plate.
Said CT imaging device is many row CT.
After having adopted technique scheme; Owing to increased shared support and treatment head support; The CT imaging device also comprises CT driving mechanism and CT bracing frame, and the mesopore of CT imaging ring and shared support, treatment head support, CT bracing frame communicate, and therapeutic bed comprises pedestal and body support plate; Treatment head support one side is connected with shared bracket bearing, and opposite side is connected with the treatment head; CT bracing frame one side is connected with CT imaging collar bearing; Opposite side is connected to guide rail to the X of guide rail and horizontal direction through the Z on the vertical direction with said shared support; Pedestal is fixedly connected with the CT bracing frame; The body support plate is connected to guide rail through the Y along the mesopore axis direction with said pedestal, and X ray tube and detector are oppositely arranged on the said CT imaging ring, and the CT driving mechanism encircles to be connected and to drive CT imaging ring with the CT imaging and rotates; A treatment driving mechanism is connected with the treatment head support and drives treats the head support rotation; Not only the CT imaging device has driving mechanism separately with the treatment head, and because of CT imaging ring is fixedly connected with the pedestal of therapeutic bed through the CT bracing frame, promptly when carrying out CT, has only human body to lie in body support plate upper edge Y to guide rail movement on the therapeutic bed.And when treating; Human body lie on the body support plate except that can along Y also can be to guide rail movement through pedestal and CT bracing frame along the Z of in the vertical direction to the X of guide rail and horizontal direction to guide rail movement; Space when promptly carrying out the CT image-forming diagnose is the space of CT imaging ring; And what utilize when treating is the treatment space on the treatment head support, and both have separately diagnosis and treatment space, do not influence each other; Therefore, having solved CT imaging device in the radiotherapy system of existing band CT imaging device rotates simultaneously with the treatment head and causes the imaging effect difference of CT imaging device and because of requisite space do not allow the to influence each other technical problem of effect.In addition; Because the mesopore of shared support, treatment head support and CT imaging ring communicates, therapeutic bed can be at shared support, moves horizontally in the mesopore of treatment head support and CT imaging ring; Really realized under same coordinate system, accomplishing treatment and imaging, improved the treatment precision greatly.
The specific embodiment
Shown in Fig. 1-2; A kind of radiotherapy system; Comprise treatment 1, a treatment driving mechanism, shared support 2, treatment head support 3, therapeutic bed and CT imaging device; The CT imaging device comprises X ray tube, CT imaging ring 6, detector, signal translating system, CT driving mechanism and CT bracing frame 7, is provided with the space that allows therapeutic bed to walk on shared support 2, treatment head support 3, the CT bracing frame 7, and communicates with the mesopore of CT imaging ring 6.Therapeutic bed comprises pedestal 4 and body support plate 5, and treatment head support 3 one sides are connected with shared support 2 bearings, opposite side with treat 1 and be connected; CT bracing frame 7 one sides are connected with CT imaging ring 6 bearings; Opposite side is connected to guide rail 8 to the X of guide rail 9 and horizontal direction through the Z on the vertical direction with shared support 2; Pedestal 4 is fixedly connected with CT bracing frame 7; Body support plate 5 is connected to guide rail through the Y along the mesopore axis direction with pedestal 4, and X ray tube and detector are oppositely arranged on the CT imaging ring 6, and the CT driving mechanism is connected with CT imaging ring 6 and drives CT and forms images and encircle 6 rotations; A treatment driving mechanism is connected with treatment head support 3 and drives treats head support 3 rotations; The side that treatment head support 3 is provided with treatment 1 also is provided with and treats 1 a relative counterweight, and treatment head support 3 is provided with on the side of treatment 1 also has the nuclear medical imaging apparatus 10 that is mounted thereon through slide block, like gamma camera, SPECT or PET; Treatment 1 is provided with a plurality of radioactive sources, and a plurality of radioactive sources focus on a public focus.Said Y divides first guide rail 13 and second guide rail 14 to guide rail; Connect first respectively and drive 11 and second driving 12; First guide rail 11 is arranged on the said pedestal 4, and connects first driving 11, and said second guide rail 14 and first guide rail 13 are slidingly connected; And connecting second driving 12, said second guide rail 14 connects said body support plate 5.
The CT imaging device is many row CT.
Shared support 2 can also can be semi-enclosed support etc. for annular or U type or other closed support with holes, if in the middle of mobilizable space that can hold therapeutic bed is arranged, the shape in hole can not limit; Treatment head support 3 is other sealing or semi-closed structures such as annular, C type, and concrete shape also can not limit, and in the middle of needing only the space that can hold couch motion is arranged.