MRI guiding high intensity focusing ultrasonic therapeutic system

Abstract

A MRI guided high-intensity focused ultrasonic therapy system is composed of a MRI unit including the first therapeutic bed and a high-intensity focused ultrasonic therapy unit having an ultrasonic transducer and a moving-locating mechanism with a supporting rod able to be extended in the gap of said MRI unit during therapy and connected to said ultrasonic transducer.

Description

technical field

[0001] The invention belongs to the technical field of medical devices, and relates to an ultrasonic treatment system, in particular to an MRI-guided high-intensity focused ultrasonic treatment system. Background technique

[0002] Focused ultrasound treatment in the prior art mostly adopts B-ultrasound equipment for positioning and monitoring treatment, and adopts this B-ultrasound equipment for monitoring and treatment. Ultrasound system still has certain limitations in its visible area; 2. The observable depth of ultrasound images is limited, and bony substances have a particularly large impact on the images, and the tissue behind the bone can hardly be observed, and there are artifacts; 3. Ultrasound images The ability to identify tissue boundaries is poor, especially for small tumors and deep tumors.

[0003] In addition, an important application in biology and medicine is the MRI (Magnetic Resonance Imaging Magnetic Resonance Imaging) device, which can...

Examples

Embodiment 1

[0035] As shown in FIG. 1 , the system in this embodiment includes an MRI device 1 and a high-intensity focused ultrasound therapy device. Wherein, the high-intensity focused ultrasound treatment device includes an ultrasonic transducer 6 and a motion positioning mechanism, which is located at the rear of the MRI device, and a support rod 4 is connected to the motion positioning mechanism. One end of the support rod 4 is connected with the control device 9 in the motion positioning mechanism, and the other end is connected with the ultrasonic transducer 6 . The motion positioning mechanism includes a control device 9 , driven by the control device 9 , the support rod 4 can move in X, Y, Z directions and rotate around the X direction.

[0036] As shown in Figures 1 and 2, the structure of the control device 9 moving along the X, Y, and Z directions respectively includes a motor, a screw rod, a slider and a slide rail connected with the support rod, and the screw rod is connecte...

Embodiment 2

[0048] like image 3 As shown, in this embodiment, the motion positioning mechanism is located at the rear of the MRI apparatus 1 . The difference from Embodiment 1 is that in this embodiment, there is only the first treatment couch 2 in the aperture of the MRI apparatus 1 , and the ultrasonic transducer 6 is located above the first treatment couch 2 to apply ultrasound to the patient's lesion from top to bottom for treatment. In the MRI device 1, since the ultrasonic transducer 6 is located above the treatment bed body and applies ultrasonic waves to the patient's lesion from top to bottom for treatment, there may be no small holes in the first treatment bed 2, and the first treatment bed 2 can be selected. Treat normally.

[0049] The fluid container 5 adopts a water bag, and the water bag is filled with degassed water. In order to prevent the degassed water in the water bag from flowing out, the open end of the water bag is closed by a flexible sound-transmitting film 15. T...

Embodiment 3

[0052] like Figure 4 , 5 As shown, in this embodiment, the motion positioning mechanism is located at the front of the MRI apparatus 1 during treatment, and the MRI apparatus includes a first treatment couch 2 and a second treatment couch 13 . The motion positioning mechanism includes a bed motion device for moving the second treatment bed 13 and a control device 9 for controlling the ultrasonic transducer to rotate in X, Y, Z and X directions. The second treatment bed 13 is connected to the motion positioning mechanism through the bed motion device.

[0053] Among them, the structure of the control device 9 is the same as that in the first embodiment.

[0054] The bed moving device includes a pulley slide rail structure for making the second treatment bed 13 move left and right and a pulley structure for making the second treatment bed 13 move back and forth.

[0055] like Figure 4 As shown, the sliding rail 17 is fixed on the control device 9, the fluid device 5 is pla...

technical field

[0001] The invention belongs to the technical field of medical devices, and relates to an ultrasonic treatment system, in particular to an MRI-guided high-intensity focused ultrasonic treatment system. Background technique

[0002] Focused ultrasound treatment in the prior art mostly adopts B-ultrasound equipment for positioning and monitoring treatment, and adopts this B-ultrasound equipment for monitoring and treatment. Ultrasound system still has certain limitations in its visible area; 2. The observable depth of ultrasound images is limited, and bony substances have a particularly large impact on the images, and the tissue behind the bone can hardly be observed, and there are artifacts; 3. Ultrasound images The ability to identify tissue boundaries is poor, especially for small tumors and deep tumors.

[0003] In addition, an important application in biology and medicine is the MRI (Magnetic Resonance Imaging Magnetic Resonance Imaging) device, which can...

Examples

Embodiment 1

[0035] As shown in FIG. 1 , the system in this embodiment includes an MRI device 1 and a high-intensity focused ultrasound therapy device. Wherein, the high-intensity focused ultrasound treatment device includes an ultrasonic transducer 6 and a motion positioning mechanism, which is located at the rear of the MRI device, and a support rod 4 is connected to the motion positioning mechanism. One end of the support rod 4 is connected with the control device 9 in the motion positioning mechanism, and the other end is connected with the ultrasonic transducer 6 . The motion positioning mechanism includes a control device 9 , driven by the control device 9 , the support rod 4 can move in X, Y, Z directions and rotate around the X direction.

[0036] As shown in Figures 1 and 2, the structure of the control device 9 moving along the X, Y, and Z directions respectively includes a motor, a screw rod, a slider and a slide rail connected with the support rod, and the screw rod is connecte...

Embodiment 2

[0048] like image 3 As shown, in this embodiment, the motion positioning mechanism is located at the rear of the MRI apparatus 1 . The difference from Embodiment 1 is that in this embodiment, there is only the first treatment couch 2 in the aperture of the MRI apparatus 1 , and the ultrasonic transducer 6 is located above the first treatment couch 2 to apply ultrasound to the patient's lesion from top to bottom for treatment. In the MRI device 1, since the ultrasonic transducer 6 is located above the treatment bed body and applies ultrasonic waves to the patient's lesion from top to bottom for treatment, there may be no small holes in the first treatment bed 2, and the first treatment bed 2 can be selected. Treat normally.

[0049] The fluid container 5 adopts a water bag, and the water bag is filled with degassed water. In order to prevent the degassed water in the water bag from flowing out, the open end of the water bag is closed by a flexible sound-transmitting film 15. T...

Embodiment 3

[0052] like Figure 4 , 5 As shown, in this embodiment, the motion positioning mechanism is located at the front of the MRI apparatus 1 during treatment, and the MRI apparatus includes a first treatment couch 2 and a second treatment couch 13 . The motion positioning mechanism includes a bed motion device for moving the second treatment bed 13 and a control device 9 for controlling the ultrasonic transducer to rotate in X, Y, Z and X directions. The second treatment bed 13 is connected to the motion positioning mechanism through the bed motion device.

[0053] Among them, the structure of the control device 9 is the same as that in the first embodiment.

[0054] The bed moving device includes a pulley slide rail structure for making the second treatment bed 13 move left and right and a pulley structure for making the second treatment bed 13 move back and forth.

[0055] like Figure 4 As shown, the sliding rail 17 is fixed on the control device 9, the fluid device 5 is pla...

Images