CN211561615U - Focusing head - Google Patents
Focusing head Download PDFInfo
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- CN211561615U CN211561615U CN201921929867.XU CN201921929867U CN211561615U CN 211561615 U CN211561615 U CN 211561615U CN 201921929867 U CN201921929867 U CN 201921929867U CN 211561615 U CN211561615 U CN 211561615U
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- focusing head
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- radiation source
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- source device
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Abstract
The embodiment of the application provides a focus head, includes: the device comprises a radiation source device, a driving structure and a manual control structure; the radiation source device is used for bearing a radiation source and controlling the radiation of the radiation source; the driving structure is connected with one end of the radiation source device and is used for driving the radiation source device to move and controlling the working state of the focusing head; the manual control structure is coupled with the driving structure and used for controlling the driving structure, and the focusing head is in a source-off working state through the driving structure. When the power is suddenly cut off and the focusing head is in the open source state, an operator can apply driving force to the manual control structure, the working state of the focusing head is changed from the open source state to the closed source state, irradiation to a patient is stopped, and the phenomenon that rays irradiate the body of the patient for a long time and damage to the body of the patient is avoided.
Description
Technical Field
The embodiment of the application relates to the technical field of medical equipment, in particular to a focusing head.
Background
The gamma knife is a large-scale medical device for treating craniocerebral diseases. The gamma knife selectively determines intracranial normal tissues or pathological tissues as target points according to the solid geometry orientation principle, and the gamma rays generated by cobalt-60 are used for focusing and irradiating the target points at one time with large dose, so that the irradiated parts generate focal necrosis or function change, thereby achieving the purpose of treating diseases.
Wherein the focusing head is one of the main components of the gamma knife. The focusing head has two working states of an open source state and a closed source state.
When the focusing head is in an open source state to treat a patient, if some sudden conditions occur at the moment to cause the power failure of the focusing head, the focusing head cannot be changed from the open source state to a closed source state, so that rays irradiate the body of the patient for a long time, and the body of the patient is injured.
SUMMERY OF THE UTILITY MODEL
In view of the above, one of the technical problems to be solved by the embodiments of the present application is to provide a focusing head to overcome the problems in the prior art.
The embodiment of the application provides a focus head, includes: the device comprises a radiation source device, a driving structure and a manual control structure; the radiation source device is used for bearing a radiation source and controlling the radiation of the radiation source; the driving structure is connected with one end of the radiation source device and is used for driving the radiation source device to move and controlling the working state of the focusing head; the manual control structure is coupled with the driving structure and used for controlling the driving structure, and the focusing head is in a source-off working state through the driving structure.
Optionally, the manual control structure includes an operation structure and a transmission structure, the operation structure is connected to the transmission structure, and the transmission structure is connected to the driving structure, and is configured to control the driving structure through the operation structure and the transmission structure.
Optionally, the operating structure is an operating shaft or an operating handle.
Optionally, the transmission structure is a transmission gear connected with the operating shaft or the operating handle, the driving structure is a driving gear, and the transmission gear is meshed with the driving gear or is in transmission with the driving gear through a synchronous belt.
Optionally, the operating shaft or the operating handle is disposed at an end face of the transmission gear or passes through an axial center of the transmission gear to transmit a control force to the transmission gear through the operating shaft or the operating handle.
Optionally, the manual control structure is arranged at a position 450mm-550mm away from the isocenter of the focusing head, and the length of the operating shaft or the operating handle is 80mm-90 mm.
Optionally, the manual control structure and the driving structure are arranged on the same side of the focusing head.
Optionally, at least one limiting structure is disposed at the other end of the source device, and is used for limiting the position of the source device when the focusing head is in the working state of closing the source.
Optionally, the focusing device further comprises a position indicating structure for indicating the working state of the focusing head according to the position of the source device.
Optionally, the source arrangement comprises a carrier source body and/or a collimator.
According to the technical scheme, the focusing head provided by the embodiment of the application comprises a radiation source device, a driving structure and a manual control structure; the radiation source device is used for bearing a radiation source and controlling the radiation of the radiation source; the driving structure is connected with one end of the radiation source device and is used for driving the radiation source device to move and controlling the working state of the focusing head; the manual control structure is coupled with the driving structure and used for controlling the driving structure, and the focusing head is in a source-off working state through the driving structure. If power is suddenly cut off and the focusing head is in an open source state, an operator can apply driving force through the manual control structure so as to drive the driving structure to drive the radiation source device, so that rays of a radiation source in the radiation source device cannot be emitted from the focusing head, the working state of the focusing head is changed from the open source state to a closed source state, irradiation on a patient is stopped, and the phenomenon that the rays irradiate the body of the patient for a long time and damage the body of the patient is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a focusing head in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a source carrier limiting structure in an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
The following further describes a specific implementation of the embodiments of the present application with reference to the embodiments of the present application and the accompanying drawings.
Fig. 1 is a schematic structural diagram of a focusing head in an embodiment of the present application. As shown in fig. 1, the present embodiment provides a focusing head, which includes a source device 1, a driving structure 2 and a manual control structure 3; the radiation source device 1 is used for carrying a radiation source (not shown in the figure) and controlling the radiation of the radiation source; the driving structure 2 is connected with one end of the radiation source device 1 and is used for driving the radiation source device 1 to move and controlling the working state of the focusing head; the manual control structure 3 is coupled to the driving structure 2, and is configured to control the driving structure 2, and enable the focusing head to be in a source-off working state through the driving structure.
In this embodiment, the coupling comprises a contact drive connection or a non-contact drive connection. For example, the manual control structure 3 is coupled to the driving structure 2 by means of a geared connection.
In this embodiment, the driving structure 2 drives the radiation source device 1 to move under the driving of the motor, so that the radiation emitted by the radiation source is emitted to irradiate the patient. When the irradiation to the patient needs to be stopped, the driving structure 2 continues to drive the radiation source device 1 to move, so that the rays emitted by the radiation source cannot emit out of the focusing head, and the irradiation to the patient is stopped. When the focusing head is powered off due to an emergency when the body of a patient is irradiated, an operator can apply a driving force to the manual control structure 3, the manual control structure 3 drives the driving structure 2 to further drive the radiation source device 1 to move, so that rays emitted by a radiation source in the radiation source device 1 cannot be emitted out of the focusing head, the irradiation on the body of the patient is stopped, and the damage to the body of the patient caused by the long-time irradiation of the rays on the body of the patient is avoided.
Optionally, in a specific implementation scenario, the manual control structure 3 includes an operation structure 31 and a transmission structure 32, the operation structure 31 is connected to the transmission structure 32, and the transmission structure 32 is connected to the driving structure 2, and is configured to drive the driving structure 2 through the operation structure 31 and the transmission structure 32. The operating structure 31 may be provided as an operating shaft or an operating handle or the like. The connection mode of the transmission structure 32 and the driving structure 2 is not limited here, when the transmission structure 32 is a transmission gear, the transmission structure 32 and the driving structure 2 may be connected by a synchronous belt, or when the transmission structure 32 is a transmission gear, in order to facilitate the transmission of the transmission structure 32 and the driving structure 2, the driving structure 2 may also be configured as a gear, and the transmission structure 32 and the driving structure 2 are driven by the engagement of two gears.
In this embodiment, the connection manner between the operating structure 31 and the transmission structure 32 is not limited as long as the driving force can be applied to the first transmission structure 32. For example, when the transmission structure 32 is a gear and the operation structure 31 is an operation shaft or an operation handle, the operation shaft or the operation handle may be disposed on an end surface of the gear or may pass through an axial center of the gear, and may be connected as a rotation shaft of the gear. The length of the operating shaft or the operating handle is not limited, and preferably, the length of the operating shaft or the operating handle is set to 80mm-90mm according to the installation and use environment of the focusing head, so that an operator can apply driving force to the operating shaft or the operating handle conveniently.
In this embodiment, when the first operating structure is configured as an operating shaft or an operating handle, and when an operator applies a driving force to the operating shaft or the operating handle, the driving force may be applied by a hand or a tool, which is not limited herein. When the driving force is applied to the operating shaft or the operating handle by the tool, the cross-sectional shape of the operating shaft or the operating handle is not limited, and may be, for example, a circle, a square, or another polygon. In order to avoid the situation of slipping when the operator applies the driving force to the operating shaft or the operating handle, the cross-sectional shape of the operating shaft or the operating handle is preferably set to a shape matching the shape of the interface of the force application tool, so that when the driving force is applied to the operating shaft or the operating handle, the force application tool is convenient to clamp and operate the operating shaft, and the phenomenon of slipping and the like does not occur. For example: the cross section of the operating shaft or the operating handle is in a regular hexagon shape, namely a ratchet wrench or a ratchet socket wrench can be used for applying driving force to the operating shaft.
Optionally, in a specific implementation scenario, in order to facilitate an operator to drive the driving structure 2 through the manual control structure 3, the manual control structure 3 and the driving structure 2 may be disposed on the same side of the focusing head, so that the manual control structure 3 can directly drive the driving structure 2 without using other transmission structures. In order to facilitate the operator to apply the driving force to the manual control structure 3, the manual control structure 3 may be disposed at a position 450mm-550mm away from the isocenter of the focusing head, so that the operator can stretch out the arm to easily operate no matter where the focusing head is located, and apply the driving force to the manual control structure 3. Wherein the isocenter of the focusing head is the focal point of the focusing head.
Optionally, in a specific implementation scenario, the other end of the source device 1 is provided with at least one limiting structure 11 for limiting the position of the source device 1 when the focusing head is in the source-off working state. Fig. 2 is a schematic structural diagram of a source carrier limiting structure in an embodiment of the present application. As shown in fig. 2, when the operator drives the driving mechanism 2 through the manual control mechanism 3 to drive the radiation source device 1 to rotate, the other end of the radiation source device 1 is blocked by the limiting mechanism 11 and cannot rotate, which indicates that the focusing head is in a source-off state, that is, the radiation emitted by the radiation source cannot exit the focusing head. Through setting up limit structure 11, can indicate operating personnel the focus head has been in the state of closing the source, need not to continue to exert drive power again. It should be noted that the number of the limiting structures 11 is not limited, as long as the position of the source device 1 when the focusing head is in the source-off state can be limited. The specific structure of the limit structure 11 is not limited, and may be, for example, a limit stop or an electromagnetic stop. When the limit structure is set as the electromagnetic stop block, the electromagnetic stop block is popped out when power is off, and the electromagnetic stop block is contracted inside the focusing head when the electromagnetic stop block is normally powered on, so that the normal rotation of the radiation source device 1 is not influenced.
Optionally, in a specific implementation scenario, the focusing head further includes a position indicating structure (not shown in the figure) for indicating an operation state of the focusing head according to the position of the source device. The position indicating structure 6 is not limited in the position of the manual control structure, and the working state of the focusing head can be indicated according to the position of the radiation source device 1. The index feature 6 may be provided on the tooth surface, for example, when the manual control 3 comprises a transmission gear. The position indicating structure 6 can display different numbers or colors according to the position of the source device 1 to indicate the working state of the focusing head. For example, when the focusing head is in the off-source state, the bit structure 6 only displays green, and when the focusing head is in the on-source state, the bit structure 6 displays yellow or red or yellow and green.
In this embodiment, in order to facilitate an operator to observe the position indicating structure 6 so as to obtain a working state of the focusing head, an observation window (not shown in the figure) is disposed on the focusing head, for example, on the focusing head casing, and is used for displaying the position indicating structure 6. The indication of the bit structure 6 is observed through the observation window. Through setting up show bit architecture 6 and observation window for operating personnel is right when manual control structure 3 applys drive power, according show bit architecture 6's instruction just can know whether will focus the head and convert to the state of being close to the source, make operating personnel use it is more convenient during manual control structure 3.
Optionally, in a specific implementation scenario, the source arrangement 1 comprises a carrier and/or a collimator.
Specifically, the manual control structure 3 is coupled with the driving structure 2 and drives the source device to move, so as to realize the focusing head source-off, including: the source carrier is driven to move (including rotating or moving), and/or the collimator is driven to move (including rotating or moving), so that a radioactive source in the source carrier is staggered with a collimating hole in the collimator, rays emitted by the radioactive source cannot be emitted through the collimating hole, and the focusing head is in a source-off working state.
When the source carrier and the collimator are cylindrically sleeved, the source carrier is driven to rotate and/or the collimator is driven to rotate; when the source carrier and the collimator are vertically overlapped, the source carrier is driven to move and/or the collimator is driven to move.
Of course, it is not necessary for any particular embodiment of the present application to achieve all of the above advantages at the same time.
The expressions "first", "second", "said first" or "said second" as used in various embodiments of the present application may modify various components irrespective of order and/or importance, but these expressions do not limit the respective components. The foregoing description is only for the purpose of distinguishing elements from other elements. For example, the first user equipment and the second user equipment represent different user equipment, although both are user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
While the preferred embodiments of the present application have been described, additional variations and modifications will occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A focusing head, comprising: the device comprises a radiation source device, a driving structure and a manual control structure;
the radiation source device is used for bearing a radiation source and controlling the radiation of the radiation source;
the driving structure is connected with one end of the radiation source device and is used for driving the radiation source device to move and controlling the working state of the focusing head;
the manual control structure is coupled with the driving structure and used for controlling the driving structure, and the focusing head is in a source-off working state through the driving structure.
2. Focusing head according to claim 1, characterized in that the manual control structure comprises an operating structure and a transmission structure, the operating structure being connected with the transmission structure, the transmission structure being connected with the driving structure for controlling the driving structure via the operating structure and the transmission structure.
3. Focusing head according to claim 2, characterized in that the operating structure is an operating shaft or an operating handle.
4. The focusing head according to claim 3, wherein the transmission structure is a transmission gear connected with the operating shaft or the operating handle, the driving structure is a driving gear, and the transmission gear is meshed with the driving gear or is in transmission with the driving gear through a synchronous belt.
5. The focusing head according to claim 4, characterized in that the operating shaft or the operating handle is provided at an end face of the transmission gear or passes through an axial center of the transmission gear to transmit a control force to the transmission gear through the operating shaft or the operating handle.
6. The focusing head according to claim 3, characterized in that the manual control structure is arranged 450-550 mm from the isocenter of the focusing head, and the length of the operating shaft or operating handle is arranged 80-90 mm.
7. Focusing head according to claim 1, characterized in that the manual control structure and the drive structure are arranged on the same side of the focusing head.
8. The focusing head of claim 1, wherein the other end of the source device is provided with at least one limiting structure for limiting the position of the source device when the focusing head is in the off-source working state.
9. The focusing head of claim 1, further comprising a position indicating structure for indicating an operating state of the focusing head according to a position of the source arrangement.
10. Focusing head according to claim 1, characterized in that the source arrangement comprises a source carrier and/or a collimator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929867.XU CN211561615U (en) | 2019-11-09 | 2019-11-09 | Focusing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929867.XU CN211561615U (en) | 2019-11-09 | 2019-11-09 | Focusing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211561615U true CN211561615U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921929867.XU Active CN211561615U (en) | 2019-11-09 | 2019-11-09 | Focusing head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121926A1 (en) * | 2020-12-09 | 2022-06-16 | 西安大医集团股份有限公司 | Source turn-off device and treatment head |
-
2019
- 2019-11-09 CN CN201921929867.XU patent/CN211561615U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022121926A1 (en) * | 2020-12-09 | 2022-06-16 | 西安大医集团股份有限公司 | Source turn-off device and treatment head |
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