A dual-purpose head and body multi-functional gamma knife treatment head

Abstract

The present invention provides a dual-purpose head and body multi-functional gamma knife treatment head. The dual-purpose head and body multi-functional gamma knife treatment head includes a shielding body, a radiation source body, a collimator body, and a shielding door from top to bottom. The shielding body, the radiation source body, and the collimator body are all in the shape of a hemispherical cover. The radiation source body is provided with a radiation source cavity, and at least one radiation source is arranged in the radiation source cavity. The radiation source body is provided with a radiation switch mechanism, and the radiation switch mechanism controls the opening and closing of the radiation source cavity; when the radiation switch mechanism controls the opening of the radiation source cavity, the radiation source corresponds to the collimation opening position of the collimator body, and when the radiation switch mechanism controls the closing of the radiation source cavity, the radiation source is arranged in a dislocation with the collimation opening of the collimator body.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device manufacturing, and particularly to a head-body dual-purpose multifunctional gamma knife treatment head. Background Art

[0002] In recent years, the gamma knife has been the main treatment means of stereotactic radiosurgery. According to the principle of stereometric orientation, the normal tissue or pathological tissue in the skull is selectively determined as the target, and the gamma rays generated by cobalt-60 are used for one-time large-dose focused irradiation, so as to cause focal necrosis or functional changes to achieve the purpose of treating diseases. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a head-body dual-purpose multifunctional gamma knife treatment head that can quickly control the on-off of the radiation source.

[0004] To solve the above technical problem, an embodiment of the present invention provides a head-body dual-purpose multifunctional gamma knife treatment head. The head-body dual-purpose multifunctional gamma knife treatment head includes a shielding body, a radiation source body, a collimator body, and a shielding door from top to bottom. The shielding body, the radiation source body, and the collimator body are all hemispherical covers. The radiation source body is provided with a radiation source cavity, at least one radiation source is arranged in the radiation source cavity, the radiation source body is provided with a radiation switch mechanism, and the radiation switch mechanism controls the on-off of the radiation source cavity.

[0005] When the radiation switch mechanism controls the opening of the radiation source cavity, the radiation source corresponds to the collimation opening position of the collimator body. When the radiation switch mechanism controls the closing of the radiation source cavity, the radiation source is arranged in a dislocation manner with the collimation opening of the collimator body.

[0006] Preferably, the radiation switch mechanism includes a driver, a driving link, and a rotating shaft switch component. The top of the driving link is connected to the driver, the bottom of the driving link is connected to the rotating shaft switch component, the rotating shaft switch component is arranged in the radiation source cavity, the radiation source is arranged on the rotating shaft switch component, and the driver drives the rotating shaft switch component to rotate through the driving link for on-off.

[0007] Preferably, the rotating shaft switch component includes a rotating gear and a rotating shaft, and the radiation source is arranged on the rotating shaft.

[0008] Preferably, a radiation opening is arranged at the position of the rotating shaft corresponding to the radiation source. When the radiation switch mechanism controls the opening of the radiation source cavity, the rotating shaft rotates, and the radiation opening corresponds to the collimation opening position of the collimator body. When the radiation switch mechanism controls the closing of the radiation source cavity, the rotating shaft rotates, and the radiation opening is arranged in a dislocation manner with the collimation opening of the collimator body.

[0009] Preferably, one end of the rotating shaft is connected to the driving link, and the other end of the rotating shaft is rotatably connected to the radiation source chamber.

[0010] Preferably, a bevel gear adapted to the rotating gear is provided at one end of the driving link where it is connected to the rotating shaft, and the driving link drives the rotating shaft to rotate through the cooperation of the bevel gear and the rotating gear.

[0011] Preferably, the driving link passes through the top of the shielding body, the driver is connected to one end of the driving link extending out of the shielding body, and a steering sensor is provided at the connection between the driver and the driving link.

[0012] Preferably, the radiation source is connected to the rotating shaft through a lateral elastic positioning pin.

[0013] Preferably, the radiation source body is provided with a plurality of radiation source chambers, the radiation source chambers are evenly arranged, a plurality of radiation sources are arranged in the radiation source chambers, and the radiation sources are distributed.

[0014] Preferably, the shielding door is provided with a manual shielding door switch.

[0015] The beneficial effects of the above technical solutions of the present invention are as follows:

[0016] In the above solution, by providing a radiation switch mechanism on the radiation source body, when the radiation switch mechanism controls the opening of the radiation source chamber, the radiation source corresponds to the collimation opening position of the collimator, and when the radiation switch mechanism controls the closing of the radiation source chamber, the radiation source is misaligned with the collimation opening of the collimator, which can realize the rapid switching of the radiation source, improve the treatment effect and reduce the treatment injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of a head-body dual-purpose multi-functional gamma knife treatment head according to an embodiment of the present invention.

[0018] Figure 2 It is a partially enlarged cross-sectional view of a head-body dual-purpose multi-functional gamma knife treatment head according to an embodiment of the present invention.

[0019] Figure 3 It is a schematic structural view of a head-body dual-purpose multi-functional gamma knife treatment head according to an embodiment of the present invention.

[0020] Figure 4 It is a schematic structural view of a head-body dual-purpose multi-functional gamma knife treatment head according to an embodiment of the present invention.

[0021] [Description of Main Element Symbols]

[0022] Shielding body 1;

[0023] Radiation source body 2;

[0024] Collimator 3;

[0025] Shielding door 4;

[0026] Radioactive source cavity 5;

[0027] Radioactive source 6;

[0028] Radioactive switch mechanism 7;

[0029] Collimation opening 8;

[0030] Driver 9;

[0031] Drive link 10;

[0032] Rotating shaft switch component 11;

[0033] Rotating gear 12;

[0034] Rotating shaft 13;

[0035] Radioactive opening 14;

[0036] Bevel gear 15. Detailed implementation manner

[0037] To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0038] As Figures 1 to 4 shown, an embodiment of the present invention is a head-body dual-purpose multi-functional gamma knife treatment head. The head-body dual-purpose multi-functional gamma knife treatment head includes a shielding body 1, a radioactive source body 2, a collimation body 3 and a shielding door 4 from top to bottom. The shielding body 1, the radioactive source body 2 and the collimation body 3 are all hemispherical covers. The radioactive source body 2 is provided with a radioactive source cavity 5. At least one radioactive source 6 is arranged in the radioactive source cavity 5. The radioactive source body 2 is provided with a radioactive switch mechanism 7. The radioactive switch mechanism 7 controls the opening and closing of the radioactive source cavity 5;

[0039] When the radioactive switch mechanism 7 controls the opening of the radioactive source cavity 5, the radioactive source 6 corresponds to the collimation opening 8 of the collimation body 3. When the radioactive switch mechanism 7 controls the closing of the radioactive source cavity 5, the radioactive source 6 is arranged in a dislocation manner with the collimation opening 8 of the collimation body 3.

[0040] The head-body dual-purpose multi-functional gamma knife treatment head according to the embodiment of the present invention is provided with a radiation switch mechanism in the radiation source body. When the radiation switch mechanism controls the opening of the radiation source cavity, the radiation source corresponds to the collimation opening position of the collimator body. When the radiation switch mechanism controls the closing of the radiation source cavity, the radiation source is arranged in a dislocation manner with the collimation opening of the collimator body, which can realize the rapid switching of the radiation source, improve the treatment effect, reduce the treatment injury, and a source loading plug can be arranged at the position corresponding to the radiation source body of the shielding body, so as to facilitate the loading, unloading and replacement of the radiation source.

[0041] Preferably, the radiation switch mechanism 7 includes a driver 9, a driving link 10 and a rotating shaft switch component 11. The top of the driving link 10 is connected to the driver 9, the bottom of the driving link 10 is connected to the rotating shaft switch component 11, the rotating shaft switch component 11 is arranged in the radiation source cavity 5, the radiation source 6 is arranged on the rotating shaft switch component 11, and the driver drives the rotating shaft switch component to rotate through the driving link for switching.

[0042] In this embodiment, the driver drives the driving link to drive the rotating shaft switch component to rotate for switching, which can quickly and accurately control the rapid opening and closing of multiple radiation sources, with accurate and timely response. Multiple groups of drivers, driving links and rotating shaft switch components can be arranged to adapt to different treatment requirements and realize the independent control of each group of rotating shaft switch components, making the treatment more accurate and effective.

[0043] Wherein, the sliding switch component 11 includes a rotating gear 12 and a rotating shaft 13, and the radiation source 6 is arranged on the rotating shaft 13. A radiation opening 14 is arranged at the position of the rotating shaft 13 corresponding to the radiation source 6. When the radiation switch mechanism 7 controls the opening of the radiation source cavity 5, the rotating shaft 13 rotates, and the radiation opening corresponds to the collimation opening position 8 of the collimator body 3. When the radiation switch mechanism 7 controls the closing of the radiation source cavity 5, the rotating shaft 13 rotates, and the radiation opening 14 is arranged in a dislocation manner with the collimation opening 8 of the collimator body 3. One end of the rotating shaft 13 is connected to the driving link 10, and the other end of the rotating shaft 13 is rotatably connected to the radiation source cavity 2. A bevel gear 15 matched with the rotating gear 12 is arranged at the end of the driving link 10 connected to the rotating shaft 13, and the driving link 10 drives the rotating shaft 13 to rotate through the cooperation of the bevel gear 15 and the rotating gear 12. The radiation source can be arranged along the length direction of the rotating shaft.

[0044] Specifically, when the radiation switch mechanism controls the opening of the radiation source chamber, the driver drives the driving link to rotate. The driving link drives the rotating shaft to rotate through the bevel gear and the rotating gear. The radiation opening corresponds to the collimation opening of the collimator. The radiation source emits rays through the radiation opening and the collimation opening. When the radiation switch mechanism controls the closing of the radiation source chamber, the driver drives the driving link to rotate. The driving link drives the rotating shaft to rotate through the bevel gear and the rotating gear. The radiation opening is arranged out of alignment with the collimation opening of the collimator.

[0045] In this embodiment, through the mutual cooperation of the rotating gear, the rotating shaft and the bevel gear, the rotation of the rotating shaft is realized, so as to open and close the radiation channel. The structure is simple and the failure rate is low. Moreover, the bevel gear and the rotating gear are closely matched, and the control precision is higher. The rotation angle of the rotating shaft can be 90 degrees.

[0046] Preferably, the driving link 10 passes through the top of the shielding body 1. The driver 9 is connected to one end of the driving link 10 extending out of the shielding body 1. A steering sensor is arranged at the connection between the driver 9 and the driving link 10.

[0047] In this embodiment, by arranging the steering sensor, the rotation angle can be accurately controlled, so as to improve the operation accuracy and avoid misoperation of the equipment.

[0048] Preferably, the radiation source 6 is connected to the rotating shaft 13 through a lateral elastic positioning pin.

[0049] Preferably, the radiation source body 2 is provided with a plurality of radiation source chambers 5. The radiation source chambers 5 are evenly arranged. A plurality of radiation sources 6 are arranged in the radiation source chamber 5. The radiation sources 6 are distributed.

[0050] In this embodiment, by arranging a plurality of radiation source chambers, the radiation source chambers are evenly arranged, a plurality of radiation sources are arranged in the radiation source chamber, and the radiation sources are distributed, so that all-round treatment can be realized, and the number of radiation sources and the switching of different positions are adjustable, improving the accuracy and flexibility of the equipment.

[0051] Preferably, the shielding door 4 is provided with a manual shielding door switch.

[0052] In this embodiment, by arranging the manual shielding door switch, it is possible to manually control the closing in the case where the equipment loses power.

[0053] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A multi-functional gamma knife treatment head that can be used for both the head and the body, characterized in that, The head-body dual-purpose multi-functional gamma knife treatment head includes a shielding body, a radiation source body, a collimator body, and a shielding door from top to bottom. The shielding body, the radiation source body, and the collimator body are all hemispherical covers. The radiation source body is provided with a radiation source cavity, and at least one radiation source is arranged in the radiation source cavity. The radiation source body is provided with a radiation switch mechanism, and the radiation switch mechanism controls the opening and closing of the radiation source cavity; When the radiation switch mechanism controls the opening of the radiation source cavity, the radiation source corresponds to the collimation opening position of the collimator body. When the radiation switch mechanism controls the closing of the radiation source cavity, the radiation source is arranged in a dislocation manner with the collimation opening of the collimator body; The radiation switch mechanism includes a driver, a driving link, and a rotating shaft switch component. The top of the driving link is connected to the driver, the bottom of the driving link is connected to the rotating shaft switch component, the rotating shaft switch component is arranged in the radiation source cavity, and the radiation source is arranged on the rotating shaft switch component. The driver drives the rotating shaft switch component to rotate through the driving link for switching; the rotating shaft switch component includes a rotating gear and a rotating shaft, and the radiation source is arranged on the rotating shaft; multiple groups of the driver, the driving link, and the rotating shaft switch component are provided, and each group of rotating shaft switch components is controlled independently.

2. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 1, characterized in that, A radiation opening is arranged at the position of the rotating shaft corresponding to the radiation source. When the radiation switch mechanism controls the opening of the radiation source cavity, the rotating shaft rotates, and the radiation opening corresponds to the collimation opening position of the collimator body. When the radiation switch mechanism controls the closing of the radiation source cavity, the rotating shaft rotates, and the radiation opening is arranged in a dislocation manner with the collimation opening of the collimator body.

3. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 2, characterized in that, One end of the rotating shaft is connected to the driving link, and the other end of the rotating shaft is rotatably connected to the radiation source cavity.

4. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 3, characterized in that, A bevel gear matched with the rotating gear is arranged at the end of the driving link connected to the rotating shaft, and the driving link drives the rotating shaft to rotate through the cooperation of the bevel gear and the rotating gear.

5. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 3, characterized in that, The driving link passes through the top of the shielding body, the driver is connected to the end of the driving link extending out of the shielding body, and a steering sensor is arranged at the connection between the driver and the driving link.

6. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 3, characterized in that, The radiation source is connected to the rotating shaft through a lateral elastic positioning pin.

7. The head-body dual-purpose multi-functional gamma knife treatment head according to any one of claims 1 to 6, characterized in that, The radiation source body is provided with a plurality of radiation source cavities, the radiation source cavities are evenly arranged, a plurality of radiation sources are arranged in the radiation source cavities, and the radiation sources are distributed.

8. The head-body dual-purpose multi-functional gamma knife treatment head according to claim 1, characterized in that The shielding door is provided with a manual shielding door switch.

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