WO2020199224A1 - 一种防碰撞装置及放射治疗设备 - Google Patents

一种防碰撞装置及放射治疗设备 Download PDF

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Publication number
WO2020199224A1
WO2020199224A1 PCT/CN2019/081614 CN2019081614W WO2020199224A1 WO 2020199224 A1 WO2020199224 A1 WO 2020199224A1 CN 2019081614 W CN2019081614 W CN 2019081614W WO 2020199224 A1 WO2020199224 A1 WO 2020199224A1
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WIPO (PCT)
Prior art keywords
protective cover
detection
collision device
radiotherapy
contact
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PCT/CN2019/081614
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English (en)
French (fr)
Inventor
何冰
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深圳市奥沃医学新技术发展有限公司
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Application filed by 深圳市奥沃医学新技术发展有限公司 filed Critical 深圳市奥沃医学新技术发展有限公司
Priority to PCT/CN2019/081614 priority Critical patent/WO2020199224A1/zh
Priority to CN201980000905.XA priority patent/CN112135666A/zh
Publication of WO2020199224A1 publication Critical patent/WO2020199224A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy

Definitions

  • the present invention relates to the technical field of medical equipment, in particular to an anti-collision device and radiotherapy equipment.
  • radiotherapy has become one of the main medical treatments for malignant tumors and other diseases.
  • Existing radiotherapy equipment is usually divided into two types: head tumor radiotherapy equipment and body tumor radiotherapy equipment.
  • FIG. 1 it is a radiotherapy equipment in the prior art.
  • the radiotherapy equipment includes a radiation device 01 and a treatment bed 02.
  • the treatment bed 02 can move the position of the patient to transport the patient's diseased part into the radiation treatment cavity 011 of the radiation device 01, and the radiation device 01 treats the patient's patient part (
  • the lesion tissue of the head is treated with radiotherapy.
  • the treatment bed can be moved in the three dimensions of X, Y, and Z, so that the focus of the patient’s tissue can be aligned with the focus of radiation, so as to perform fixed-point irradiation therapy on the focus of the tissue.
  • Embodiments of the present invention provide an anti-collision device and radiotherapy equipment, which can detect the relative position of an object and the cavity structure of a radiotherapy cavity, and can generate an alarm in time when the object approaches the cavity structure and is about to collide with the cavity structure Signal in order to take corresponding measures to avoid danger.
  • the embodiments of the present invention provide an anti-collision device, which is applied to radiotherapy equipment, and the radiotherapy equipment includes a radiotherapy chamber; it is characterized in that the anti-collision device includes: a protective cover, a support member, and a detection member; wherein: The contour of the protective cover matches the space in the radiotherapy cavity; the supporting part is installed on the radiotherapy equipment; the protective cover is arranged on the supporting part; the protective cover is supported by the supporting part in a preset position without external force And there is a gap with a preset width between it and the detection component; when subjected to an external force, the protective cover is displaced and contacts the detection component, so that the detection component generates an alarm signal.
  • the detection component is arranged on the supporting component.
  • the supporting member and the cavity structure of the radiotherapy equipment are detachably fixed.
  • a plurality of elastic spacers are distributed on the support member; the elastic spacers are used to support the protective cover at a preset position in the middle space of the support member under the condition that the protective cover is not affected by external force, and make the protection There is a gap with a preset width between the cover and the supporting part; when the protective cover is subjected to an external force, the elastic spacer at the corresponding position is deformed, so that the protective cover is displaced and contacts the detection part.
  • a plurality of isolation holes are provided on the inner side of the supporting member corresponding to the positions of the plurality of elastic isolation members, and the plurality of elastic isolation members are respectively embedded in the plurality of isolation holes.
  • each of the plurality of elastic spacers includes a resisting member, a fixing member, and a spring; wherein, in the elastic isolating member, the fixing member is fixed to the corresponding isolation hole; one end of the spring is connected to the resisting member, and the other One end is connected with a fixing piece; the abutting piece abuts against the protective cover.
  • the detection component includes a plurality of detection units; the plurality of detection units are distributed on the supporting component; when the protective cover is squeezed by an external force, the protective cover contacts the detection unit at the corresponding position, so that the detection component generates an alarm signal.
  • a plurality of through holes are provided on the supporting member at positions corresponding to the plurality of detection units, and the plurality of detection units are respectively embedded in the plurality of through holes.
  • the detection component further includes a detection circuit; the detection circuit is used to form a current loop through the protection cover and the detection unit at the corresponding position and generate an alarm signal when the protection cover is in contact with the detection unit at the corresponding position.
  • each of the multiple detection units includes a conductive contact and an insulating sleeve; the insulating sleeve is fixed to the corresponding through hole; the conductive contact is fixed on the insulating sleeve, and the protective cover is not affected by external force.
  • the lower part does not contact the protective cover, and contacts the protective cover when the protective cover is displaced under the action of external force.
  • the conductive contacts of any two adjacent detection units in the plurality of detection units are respectively connected to the first end and the second end of the detection circuit; wherein the detection circuit generates an alarm after the first end and the second end are turned on signal.
  • the conductive contact of each detection unit in the plurality of detection units is respectively connected to the first end of the detection circuit; the protective cover is connected to the second end of the detection circuit; wherein the detection circuit is conducted after the first end and the second end are turned on Generate an alarm signal.
  • a plurality of elastic spacers are distributed on the support member; the elastic spacers are used to support the protective cover at a preset position in the middle space of the support member under the condition that the protective cover is not affected by external force, and make the protection There is a gap with a preset width between the cover and the supporting part; when the protective cover is subjected to external force, the elastic spacer at the corresponding position is deformed, causing the protective cover to shift and contact the detection component; multiple elastic spacers include At least one elastic isolator is connected to the second end of the detection circuit and is in contact with the protective cover, so that the protective cover is connected to the second end of the detection circuit through the at least one elastic isolator.
  • the surface of the protective cover includes conductive materials connected with each other; the conductive materials connected with each other connect the positions on the surface of the protective cover corresponding to the conductive contacts of the multiple detection units; when the protective cover is connected through at least one elastic spacer, the detection At the second end of the circuit, the conductive material that is in communication with each other also includes a part on the surface of the protective cover that is in contact with at least one elastic spacer.
  • the detection component includes a micro switch; wherein, when the protective cover is squeezed by an external force, the protective cover contacts the micro switch in the corresponding position, so that the switch state of the micro switch is changed and an alarm signal is generated.
  • an embodiment of the present invention provides a radiotherapy equipment, which is characterized by comprising a radiation device, a treatment bed, and the anti-collision device provided in the first aspect.
  • the radiotherapy equipment further includes a treatment bed control system, which can receive the collision signal generated by the anti-collision device and drive the treatment bed to move.
  • a treatment bed control system which can receive the collision signal generated by the anti-collision device and drive the treatment bed to move.
  • the radiotherapy equipment further includes a radiation source device and a radiation source device controller.
  • the radiation source device can emit radiation beams for radiotherapy under the control of the radiation source device controller; the radiation source device controller can receive the anti-collision device Generate a collision signal and turn off the radiation source device to stop radiotherapy.
  • the anti-collision device and the radiotherapy equipment provided by the embodiments of the present invention firstly set a protective cover in the radiotherapy chamber to match the space in the radiotherapy chamber.
  • the protective cover is supported by a supporting member without external force. It is supported at a preset position and maintains a gap of a preset width with the detection component; under the condition of external force, the protective cover will take a position and contact the detection component to generate an alarm signal. Furthermore, when the treatment bed moves during treatment, if an object is too close to the radiotherapy cavity structure, it will contact the protective cover and cause the protective cover to shift, triggering an alarm signal, so that corresponding measures can be taken to avoid Dangerous occurrence.
  • the protective cover by arranging the protective cover on the supporting member and then installing the supporting member on the radiotherapy equipment, it is possible to adjust the support member and the radiotherapy equipment before installing the anti-collision device on the radiotherapy equipment.
  • the position of the protective cover, and then the adjusted anti-collision device is installed on the radiotherapy equipment, which improves the installation efficiency and avoids radiation damage during the installation and debugging process.
  • the protective cover since the protective cover is arranged on the supporting member, it is also convenient to disassemble and assemble the anti-collision device in the later maintenance process.
  • Fig. 1 is a schematic structural diagram of a radiotherapy equipment in the prior art
  • FIG. 2 is a schematic structural diagram of an anti-collision protection device in a radiotherapy equipment according to an embodiment of the present invention
  • FIG. 3 is a schematic side view of the structure of an anti-collision protection device in a radiotherapy equipment according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an anti-collision device provided by an embodiment of the present invention.
  • FIG. 5 is a schematic side view of the structure of an anti-collision device provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an enlarged structure of an elastic spacer in an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an enlarged structure of a detection unit in an embodiment of the present invention.
  • FIG. 8 is one of the structural schematic diagrams of the detection circuit of the embodiment of the present invention.
  • FIG. 9 is the second structural diagram of the detection circuit of the embodiment of the present invention.
  • 01 Radiation device; 02: Treatment bed; 011: Radiotherapy cavity; 012 The cavity structure of the radiotherapy cavity 011; 100: Anti-collision protection device; 10: Anti-collision detection device; 20: Anti-collision protection cover; 101 Anti-collision Device; 1: Protective cover; 2: Support member; 3: Detection component; 31: Detection unit; 31-1, 31-2, 31-3, 31-4: One detection unit among multiple detection units 31; 21 : Ring structure; 22: elastic spacer; 22-1, 22-2, 22-3, 22-4: one elastic spacer among a plurality of elastic spacers; 211: isolating hole; 212: through hole; 221: Steel ball; 222: threaded plug; 223: spring; 311: contact; 312: screw sleeve; 32: detection circuit.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, “plurality” means two or more.
  • Figures 2 and 3 are schematic diagrams of the structure of an anti-collision protection device in radiotherapy equipment.
  • the anti-collision protection device 100 includes an anti-collision detection device 10 and an anti-collision protection cover 20, wherein the contour shape of the anti-collision protection cover 20 matches the shape of the cover cavity of the collimating body, and a certain gap is left between the collimating body .
  • An anti-collision detection device 10 is provided at the matching gap between the anti-collision protective cover 20 and the collimator. When the anti-collision protective cover 20 touches the anti-collision detection device 10, an alarm is issued.
  • the anti-collision protection cover 20 and the anti-collision detection device 10 are directly installed on the cavity structure of the radiotherapy chamber, which makes it necessary to install or debug the anti-collision protection device 100 Complete the installation and commissioning work on the radiotherapy equipment. This is not only inconvenient to operate, but also may expose installation and debugging personnel to radiation hazards.
  • the embodiments of the present invention design a new type of anti-collision device, which can not only generate an alarm signal in time when an object approaches the cavity structure and is about to collide with the cavity structure, so as to take corresponding measures to avoid danger. It also facilitates the installation and debugging of the anti-collision device, improves the installation efficiency, and avoids radiation damage during the installation and debugging process.
  • an embodiment of the present invention provides an anti-collision device 101, which is applied to a radiotherapy apparatus 01 as shown in FIG. 1 or other similar to FIG. 1, and the radiotherapy apparatus 01 includes a radiotherapy chamber 011.
  • the anti-collision device 101 includes a protective cover 1, a supporting member 2 and a detecting member 3 (exemplarily, as shown in FIG. 4, the detecting member 3 specifically includes four detecting units 31, 31-1, 31). -2, 31-3, 31-4 are taken as examples for illustration, which are distributed around the protective cover 1).
  • the outer contour of the protective cover 1 matches the space in the radiotherapy chamber 011; the support member 2 is installed on the radiotherapy equipment 01 (for example, the support member 2 in FIG. 4 is installed on the cavity structure 012 of the radiotherapy chamber 011) .
  • the protective cover 1 is provided on the supporting member 2.
  • the protective cover 1 Under the condition of not being affected by external force, the protective cover 1 is supported by the supporting member 2 at a preset position and there is a gap of a preset width between the protective cover 1 and the detecting member 3. When subjected to an external force, the protective cover 1 is displaced and contacts the detection component 3, so that the detection component 3 generates an alarm signal.
  • the anti-collision device and the radiotherapy equipment provided by the embodiments of the present invention firstly set a protective cover in the radiotherapy chamber to match the space in the radiotherapy chamber.
  • the protective cover is supported by a supporting member without external force. It is supported at a preset position and maintains a gap of a preset width with the detection component; under the condition of external force, the protective cover will take a position and contact the detection component to generate an alarm signal. Furthermore, when the treatment bed moves during treatment, if an object is too close to the radiotherapy cavity structure, it will contact the protective cover and cause the protective cover to shift, triggering an alarm signal, so that corresponding measures can be taken to avoid Dangerous occurrence.
  • the protective cover by arranging the protective cover on the supporting member and then installing the supporting member on the radiotherapy equipment, it is possible to adjust the support member and the radiotherapy equipment before installing the anti-collision device on the radiotherapy equipment.
  • the position of the protective cover, and then the adjusted anti-collision device is installed on the radiotherapy equipment, which improves the installation efficiency and avoids radiation damage during the installation and debugging process.
  • the protective cover since the protective cover is arranged on the supporting member, it is also convenient to disassemble and assemble the anti-collision device in the later maintenance process.
  • the detection component 3 may be arranged on the supporting component 2. In this way, before installing the anti-collision device 101, the position between the protective cover 1, the supporting member 2 and the detecting member 3 can be adjusted, and the protective cover 1, the supporting member 2 and the detecting member 3 can be adjusted after the adjustment is completed. The whole installation on the radiotherapy equipment further improves the convenience of installation and the convenience of later debugging and maintenance.
  • FIG. 5 is a cross-sectional view of the anti-collision device 101. Since the current radiation treatment cavity space can be hemispherical, cylindrical or truncated cone-shaped, the present application takes the hemispherical space inside the radiation treatment cavity as an example, so FIGS. 4 and 5
  • the protective cover 1 also exemplarily adopts a hemispherical shape.
  • the protective cover 1 is provided on the supporting member 2.
  • the supporting member 2 is also provided with a detecting member 3, in the case of no external force, the gap between the detecting member 3 and the protective cover 1 and the preset width, when subjected to external force, the protective cover 1 is displaced and is The detection part 3 is in contact so that the detection part 3 generates an alarm signal.
  • the support member 2 and the cavity structure 012 of the radiotherapy equipment are detachably fixed in the embodiment of the present invention.
  • the supporting member 2 and the cavity structure 012 of the radiotherapy device can be connected by screws.
  • the supporting member 2 is connected to the cavity structure by means of a screw connection, thereby facilitating the installation and disassembly of the anti-collision device 101.
  • the position of the support member 2 can also be fine-tuned by adjusting the number of coupling turns of the screw to meet the detection requirements.
  • the protective cover 1 in order to enable the protective cover 1 to be supported at a preset position by the supporting member 2 without external force, the protective cover can be displaced under the external force.
  • a plurality of elastic spacers 22 are distributed on the supporting member 2.
  • the supporting member 2 has an annular structure 21.
  • a plurality of elastic spacers 22 (elastic spacers 22-1, 22-2, 22-3, 22-4) are distributed on the ring structure 21.
  • the elastic spacer 22 on the ring structure 21 As shown in FIG. 5 again, the elastic spacer 22 on the ring structure 21.
  • the elastic spacer 22 is used to support the protective cover 1 at a preset position in the middle space of the supporting member 2 when the protective cover 1 is not affected by external force, and make a preset position between the protective cover 1 and the supporting member 2 The width of the gap.
  • the elastic spacer 22 at the corresponding position is deformed, so that the protective cover 1 is in position and contacts the detection component 3.
  • a plurality of elastic spacers 22 may be evenly distributed on the ring structure 21. Or considering the influence of the gravity of the protective cover 1 itself, a denser elastic spacer 22 is distributed below the protective cover 1 to make the gap between the circumference of the protective cover 1 and the annular structure 21 more uniform.
  • a plurality of isolation holes 211 are provided on the inner side of the support member 2 corresponding to the positions of the plurality of elastic isolation members 22.
  • the plurality of elastic spacers 22 are respectively embedded in the plurality of isolation holes 211.
  • the plurality of elastic spacers 22 and the plurality of isolation holes 211 may be respectively fixed by screw coupling.
  • each of the above-mentioned plurality of elastic spacers 22 respectively includes a resisting member 221, a fixing member 222, and a spring 223;
  • the fixing member 222 is fixed to the corresponding isolating hole 211; one end of the spring 223 is connected to the contact member 221, and the other end is connected to the fixing member 222; the contact member 221 is in contact with the protective cover 1.
  • the resisting member 221 may include a steel ball
  • the fixing member 222 may include a threaded plug
  • FIG. 6 is a schematic structural diagram of a part of the elastic spacer 22 in FIG. 5 after being enlarged.
  • an isolation hole 211 is provided on the inner side of the ring structure 21.
  • the elastic spacer 22 includes a steel ball 221, a threaded plug 222 and a spring 223.
  • the outer wall of the threaded plug 222 and the side wall of the isolation hole 211 are respectively provided with corresponding threads, so that the threaded plug 222 and the corresponding isolation hole 211 can be fixed by the corresponding threads.
  • the isolation hole 211 may be provided as a hole penetrating the support member 2 so that the elastic isolation member 22 can be installed to a corresponding position from the outside of the support member 2. As shown in FIG. 6, the isolation hole 211 penetrates the ring structure 21.
  • the average width of the gap between the protective cover 1 and the supporting member 2 can be maintained at 1.5 mm.
  • the distance between the protective cover 1 and the ring structure 21 is 1.5 mm.
  • the detection component 3 specifically includes a plurality of detection units 31.
  • the detection component 3 includes 31-1, 31-2, 31-3, and 31-4.
  • the detection units 31 are distributed on the supporting member 2 (specifically, as shown in FIG. 4, the detection units 31 may be distributed on the ring structure 21). Wherein, in order to ensure the accuracy of the detection result, a plurality of detection units 31 may be evenly distributed on the supporting member 2.
  • the protective cover 1 When the protective cover 1 is squeezed by an external force, the protective cover 1 contacts the detection unit 31 at the corresponding position, so that the detection component 3 generates an alarm signal.
  • a plurality of through holes 212 are provided on the supporting member 2 at positions corresponding to the plurality of detection units 31, and the plurality of detection units 31 are respectively embedded in the plurality of through holes 212. As shown in FIG. 7, a through hole 212 is provided on the ring structure 21 for embedding the detection unit 31 in the through hole 212.
  • the plurality of detection units 31 and the plurality of through holes 212 are respectively fixed by screw coupling.
  • the detection unit 31 in FIG. 7 is composed of a contact 311 and a screw sleeve 312.
  • the plurality of detection units 31 and the plurality of through holes 212 are respectively fixed by screw coupling.
  • the contact 311 is fixed on the screw sleeve 312 for contact with the protective cover 1.
  • the part of the protective cover 1 in contact with the detection unit 31 at the corresponding position has a conductive function.
  • the protective cover may be made of a conductive metal material.
  • the detection part 3 also includes a detection circuit 32.
  • the detection circuit 32 is used to form a current loop and generate an alarm signal when the protective cover 1 is in contact with the detection unit 31 at the corresponding position.
  • each detection unit 31 of the multiple detection units 31 includes a conductive contact 311 and an insulating sleeve 312 respectively.
  • the insulating sleeve 312 and the corresponding through hole 212 can be fixed by screw coupling.
  • the conductive contact 311 is fixed on the insulating sleeve 312, and does not contact the protective cover 1 without external force, and contacts the protective cover 1 when the protective cover 1 is displaced under the external force.
  • the insulating sleeve 312 is made of insulating material, and the conductive contact 311 is made of conductive material.
  • the conductive contacts of any two adjacent detection units 31 in the plurality of detection units 31 are respectively connected to the first end and the second end of the detection circuit 32; wherein the detection circuit 32 is at the first end and the second end. An alarm signal is generated after the two ends are turned on.
  • any two adjacent detection units 31 among the eight detection units 31 are respectively connected to the positive electrode and the negative electrode of the detection circuit 32.
  • the dotted line in Fig. 8 shows the position of the protective cover 1 after receiving an external force. At this time, the protective cover 1 is in contact with the two detection units on the upper right. As a result, a current loop is generated in the detection circuit 32 to trigger an alarm signal.
  • the protective cover 1 has a conductive function.
  • the detection component includes a detection circuit 32.
  • Each detection unit 31 of the plurality of detection units 31 includes a conductive contact 311 and an insulating sleeve 312 respectively.
  • the insulating sleeve 312 and the corresponding through hole 212 are fixed by screw coupling.
  • the conductive contact 311 is fixed on the insulating sleeve 312, and does not contact the protective cover 1 without external force, and contacts the protective cover 1 when the protective cover 1 is displaced under the external force.
  • the conductive contact 311 of each detection unit 31 in the plurality of detection units 31 is respectively connected to the first end of the detection circuit 32; the protective cover 1 is connected to the second end of the detection circuit 32; wherein the detection circuit 32 An alarm signal is generated after the first end and the second end are turned on.
  • this implementation also includes:
  • the plurality of elastic spacers 22 includes at least one elastic spacer 22 connected to the second end of the detection circuit 32, so that the protective cover 1 is connected to the second end of the detection circuit 32 through the at least one elastic spacer 22.
  • each of the four detection units 31 is connected to the negative electrode of the detection circuit 32 respectively.
  • the positive electrode of the detection road 32 is connected to an elastic separator 22 so that the protective cover 1 is connected to the positive electrode of the detection circuit 32 through at least one elastic separator 22.
  • the dotted line in FIG. 9 shows the position of the protective cover 1 after receiving an external force. At this time, the protective cover 1 is in contact with the upper right detection unit. As a result, a current loop is generated in the detection circuit 32 to trigger an alarm signal.
  • each or several of the plurality of elastic spacers can be connected to one end of the detection circuit 32 to ensure the accuracy of the detection result, which is not limited by the present invention.
  • the embodiment of the present invention further includes:
  • the surface of the protective cover 1 includes conductive materials connected to each other; the conductive materials connected to each other connect positions on the surface of the protective cover 1 corresponding to the conductive contacts of the plurality of detection units 31;
  • the conductive material that communicates with each other also includes the part on the surface of the protective cover 1 that contacts the at least one elastic spacer 22 .
  • each detection unit 31 of the plurality of detection units further includes a micro switch.
  • the protective cover 1 when the protective cover 1 is squeezed by an external force, the protective cover 1 is in contact with the micro switch at the shadow position, so that the switch state of the micro switch is changed. So that the detection component produces an alarm signal.
  • the anti-collision device provided by the embodiment of the present invention further includes a control module.
  • the control module is connected with the detection component 3.
  • the control module is used to send out an alarm and stop radiotherapy after detecting the production alarm signal of the component.
  • control module is also used to control the treatment bed to move in a direction opposite to the previous movement direction after the detection component generates an alarm signal.
  • the treatment bed can also be controlled to move in the opposite direction through the control module, so that the safety of the patient and the equipment can be better protected.
  • the embodiment of the present invention also provides a radiotherapy equipment.
  • the radiotherapy equipment includes a radiation device, a treatment bed, and the anti-collision device provided in the first aspect.
  • the radiotherapy equipment provided by the embodiment of the present invention further includes a treatment bed control system, which can receive the collision signal generated by the anti-collision device and drive the treatment bed to move.
  • the radiotherapy equipment provided by the embodiment of the present invention further includes: a radiation source device and a radiation source device controller, and the radiation source device can emit radiation beams for radiation under the control of the radiation source device controller. treatment.
  • the radiation source device controller can receive the collision signal generated by the anti-collision device and turn off the radiation source device to stop radiotherapy.

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Abstract

一种防碰撞装置(101)及放射治疗设备，涉及医疗设备技术领域，当物体靠近腔体结构(012)并即将与腔体结构(012)发生碰撞时能够及时生成告警信号，以便采取相应措施、避免危险发生。防碰撞装置(101)包括：保护罩(1)、支撑部件(2)以及检测部件(3)；其中：放射治疗设备包括一个放射治疗腔(011)，保护罩(1)的外形轮廓与放射治疗腔(011)内空间相匹配；支撑部件(2)安装在放射治疗设备上；保护罩(1)设置在支撑部件(2)上；在不受外力作用的情况下，保护罩(1)由支撑部件(2)支撑在预设位置并与检测部件(3)之间有预设宽度的间隙；当受到外力作用的情况下，保护罩(1)发生位移并与检测部件(3)接触，以使得检测部件(3)生成告警信号。防碰撞装置(101)可用于放射治疗设备。

Description

一种防碰撞装置及放射治疗设备 技术领域
本发明涉及医疗设备技术领域，尤其涉及一种防碰撞装置及放射治疗设备。
背景技术
目前，放射治疗已经成为治疗恶性肿瘤等疾病的主要医疗手段之一。现有的放射治疗设备通常分为头部肿瘤放疗设备和体部肿瘤放疗设备两类。如图1所示，为现有技术的一种放射治疗设备，该放射治疗设备包括放射装置01和治疗床02。在治疗时，患者躺在治疗床02上，治疗床02可以通过移动位置，将患者的患病部位运送至放射装置01的放射治疗腔011内，并由放射装置01对患者的病患部位(例如头部)的病灶组织进行放射治疗。具体的，如图1中治疗床可以通过在X、Y、Z三个维度上进行移动，从而使患者的病灶组织能够对准辐射焦点，以执行对病灶组织的定点照射治疗。
在上述放射治疗的过程中存在一个问题：当患者的病灶处于较偏的位置时，此时治疗床就需要进行较大尺度的移动来将病灶对准辐射焦点。这就可能导致治疗床的实际运动距离超出放射治疗腔011的腔体空间范围，从而使患者身体等物体与放射装置01发生碰撞，造成严重的后果。
发明内容
本发明的实施例提供一种防碰撞装置及放射治疗设备，能够检测物体与放射治疗腔的腔体结构的相对位置，当物体靠近腔体结构并即将与腔体结构发生碰撞时能够及时生成告警信号，以便采取相应措施，避免危险发生。
为达到上述目的，本发明的实施例采用如下技术方案：
第一方面，本发明实施例提供一种防碰撞装置，应用于放射治疗设备，放射治疗设备包括一个放射治疗腔；其特征在于，防碰撞装置包括：保护罩、支撑部件以及检测部件；其中：保护罩的外形轮廓与 放射治疗腔内空间相匹配；支撑部件安装在放射治疗设备上；保护罩设置在支撑部件上；在不受外力作用的情况下，保护罩由支撑部件支撑在预设位置并与检测部件之间有预设宽度的间隙；当受到外力作用的情况下，保护罩发生位移并与检测部件接触，以使得检测部件生成告警信号。
可选的，检测部件设置在支撑部件上。
可选的，支撑部件与放射治疗设备的腔体结构可拆卸固定。
可选的，支撑部件上分布有多个弹性隔离件；弹性隔离件用于在保护罩不受外力作用的情况下，将保护罩支撑在支撑部件的中部空间内的预设位置，并使保护罩与支撑部件之间有预设宽度的间隙；当保护罩受到外力作用的情况下，相应位置的弹性隔离件发生形变，使保护罩发生位移并与检测部件接触。
可选的，支撑部件的内侧对应于多个弹性隔离件的位置设置有多个隔离孔，多个弹性隔离件分别嵌在多个隔离孔中。
可选的，多个弹性隔离件中每个弹性隔离件分别包括抵触件、固定件以及弹簧；其中，在弹性隔离件中，固定件与对应的隔离孔固定；弹簧的一端连接抵触件，另一端连接固定件；抵触件与保护罩相抵接。
可选的，检测部件包括多个检测单元；多个检测单元分布在支撑部件上；当保护罩受到外力挤压时，保护罩与相应位置的检测单元相接触，以使检测部件产生告警信号。
可选的，支撑部件上对应于多个检测单元的位置设置有多个通孔，多个检测单元分别嵌在多个通孔中。
可选的，检测部件还包括检测电路；检测电路用于当保护罩与相应位置的检测单元相接触时，通过保护罩与相应位置的检测单元形成电流回路并产生告警信号。
可选的，多个检测单元中每个检测单元分别包括导电触头和绝缘套；绝缘套与对应的通孔固定；导电触头固定在绝缘套上，并在保护罩不受外力作用的情况下与保护罩不接触，在保护罩受到外力作用下发生位移时与保护罩接触。
可选的，多个检测单元中任意相邻的两个检测单元的导电触头分别连接检测电路的第一端和第二端；其中检测电路在第一端和第二端导通后产生告警信号。
可选的，多个检测单元中每个检测单元的导电触头分别连接检测电路的第一端；保护罩连接检测电路的第二端；其中检测电路在第一端和第二端导通后产生告警信号。
可选的，支撑部件上分布有多个弹性隔离件；弹性隔离件用于在保护罩不受外力作用的情况下，将保护罩支撑在支撑部件的中部空间内的预设位置，并使保护罩与支撑部件之间有预设宽度的间隙；当保护罩受到外力作用的情况下，相应位置的弹性隔离件发生形变，使保护罩发生位移并与检测部件接触；多个弹性隔离件中包括至少一个弹性隔离件与检测电路的第二端连接并与保护罩接触，以使得保护罩通过至少一个弹性隔离件连接检测电路的第二端。
可选的，保护罩的表面包括相互连通的导电材料；相互连通的导电材料将保护罩表面上与多个检测单元的导电触头对应的位置连通；当保护罩通过至少一个弹性隔离件连接检测电路的第二端时，相互连通的导电材料还包括保护罩表面上与至少一个弹性隔离件接触的部分。
可选的，检测部件包括微动开关；其中，当保护罩受到外力挤压时，保护罩与相应位置的微动开关相接触，以使得微动开关的开关状态改变并产生告警信号。
第二方面，本发明实施例提供一种放射治疗设备，其特征在于，包括放射装置、治疗床以及上述第一方面提供的防碰撞装置。
可选的，该放射治疗设备还包括治疗床控制系统，可接收防碰撞装置生成的碰撞信号，并驱动治疗床移动。
可选的，放射治疗设备还包括射源装置及射源装置控制器，射源装置在射源装置控制器的控制下可发出放射束以进行放射治疗；射源装置控制器可接收防碰撞装置生成的碰撞信号，并关闭射源装置以停止放射治疗。
本发明实施例所提供的防碰撞装置以及放射治疗设备，首先通过在放射治疗腔内设置一个与放射治疗腔内空间相匹配的保护罩，该保护罩在不受外力的情况下，由支撑部件支撑在预设位置并与检测部件保持预设宽度的间隙；在受到外力作用的情况下，该保护罩会发生位置并与检测部件接触从而生成告警信号。进而在进行治疗的过程中治 疗床移动时，若有物体与放射治疗腔体结构距离过近时，就会与保护罩相接触并使保护罩发生位移从而触发告警信号，以便采取相应的措施避免危险的发生。另外，本发明实施例中，通过将保护罩设置在支撑部件上，再将支撑部件安装在放射治疗设备上，从而可以在将防碰撞装置安装在放射治疗设备上之前，先调试好支撑部件与保护罩的位置，再将调试好的防碰撞装置安装在放射治疗设备上，提高了安装效率，避免安装调试过程中的辐射伤害。并且，由于保护罩设置在支撑部件上，因此在后期维护过程中，也便于防碰撞装置的拆装工作。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例和现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术的一种放射治疗设备的结构示意图；
图2为本发明实施例提供的一种放射治疗设备中的防碰撞保护装置的结构示意图；
图3为本发明实施例提供的一种放射治疗设备中的防碰撞保护装置的侧视结构示意图；
图4为本发明实施例提供一种防碰撞装置的结构示意图；
图5为本发明实施例提供一种防碰撞装置的的侧视结构示意图；
图6为本发明实施例中弹性隔离件的放大结构示意图；
图7为本发明实施例中检测单元的放大结构示意图；
图8为本发明实施例的检测电路的结构示意图之一；
图9为本发明实施例的检测电路的结构示意图之二。
附图标记：
01：放射装置；02：治疗床；011：放射治疗腔；012放射治疗腔011的腔体结构；100：防碰撞保护装置；10：防碰撞检测装置；20：防碰撞保护罩；101防碰撞装置；1：保护罩；2：支撑部件；3：检测部件；31：检测单元；31-1、31-2、31-3、31-4：多个检测单元31中 的一个检测单元；21：环形结构；22：弹性隔离件；22-1、22-2、22-3、22-4：多个弹性隔离件中的一个弹性隔离件；211：隔离孔；212：通孔；221：钢球；222：螺纹塞；223：弹簧；311：触头；312：螺套；32：检测电路。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。另外，在对电路进行描述时，本发明中所用“相连”、“连接”则具有进行导通的意义。具体意义需结合上下文进行理解。
首先，对本发明的发明原理进行介绍：如图2和图3所示，为一种放射治疗设备中的防碰撞保护装置的结构示意图。其中，防碰撞保护装置100包括防碰撞检测装置10以及防碰撞保护罩20，其中防碰撞保护罩20的轮廓外形与准直体的罩腔形状吻合，并且与准直体之间留有一定间隙。在防碰撞保护罩20与准直体的配合间隙处设置防碰撞检测装置10，当防碰撞保护罩20触碰到防碰撞检测装置10之后，则发出告警。
在上述防碰撞保护装置中，通常防碰撞保护罩20以及防碰撞检测装置10都是直接安装在放射治疗腔的腔体结构上的，这就使得在安装或者调试防碰撞保护装置100时，需要在放射治疗设备上完成安装、调试的工作。这样不仅操作不便，同时还可能使安装调试人员受到辐 射的危害。
基于上述问题，本发明实施例设计一种新型的防碰撞装置，不仅能够当物体靠近腔体结构并即将与腔体结构发生碰撞时能够及时生成告警信号以便采取相应措施避免危险发生。还便于防碰撞装置的安装和调试，提高了安装效率，避免安装调试过程中的辐射伤害。
实施例一：
基于上述发明原理，本发明实施例提供一种防碰撞装置101，应用于如图1所示或者其他与图1类似的的放射治疗设备01上，该放射治疗设备01包括一个放射治疗腔011。如图4所示，该防碰撞装置101包括保护罩1、支撑部件2以及检测部件3(示例性的，如图4中，以检测部件3具体包括四个检测单元31，31-1、31-2、31-3、31-4为例进行示例说明，其分布在保护罩1的周围)。其中，保护罩1的外形轮廓与放射治疗腔011内空间相匹配；支撑部件2安装在放射治疗设备01上(例如，图4中支撑部件2安装在放射治疗腔011的腔体结构012上)。保护罩1设置在支撑部件2上。
在不受外力作用的情况下，保护罩1由支撑部件2支撑在预设位置并与检测部件3之间有预设宽度的间隙。当受到外力作用的情况下，保护罩1发生位移并与检测部件3接触，以使得检测部件3生成告警信号。
本发明实施例所提供的防碰撞装置以及放射治疗设备，首先通过在放射治疗腔内设置一个与放射治疗腔内空间相匹配的保护罩，该保护罩在不受外力的情况下，由支撑部件支撑在预设位置并与检测部件保持预设宽度的间隙；在受到外力作用的情况下，该保护罩会发生位置并与检测部件接触从而生成告警信号。进而在进行治疗的过程中治疗床移动时，若有物体与放射治疗腔体结构距离过近时，就会与保护罩相接触并使保护罩发生位移从而触发告警信号，以便采取相应的措施避免危险的发生。另外，本发明实施例中，通过将保护罩设置在支撑部件上，再将支撑部件安装在放射治疗设备上，从而可以在将防碰撞装置安装在放射治疗设备上之前，先调试好支撑部件与保护罩的位置，再将调试好的防碰撞装置安装在放射治疗设备上，提高了安装效率，避免安装调试过程中的辐射伤害。并且，由于保护罩设置在支撑 部件上，因此在后期维护过程中，也便于防碰撞装置的拆装工作。
在一种实现方式中，为了便于调试、拆卸等操作，可以将检测部件3设置在支撑部件2上。这样一来，可以在安装防碰撞装置101之前，先对保护罩1、支撑部件2以及检测部件3之间的位置进行调整，在调整完成后再将保护罩1、支撑部件2以及检测部件3整体安装至放射治疗设备上，进一步提高安装的便捷性以及后期调试、维修的便捷性。
图5为防碰撞装置101的剖面图，由于目前放射治疗腔内空间可以是半球形、圆柱形或圆台形，本申请以放射治疗腔内空间为半球形为例，因此图4和图5中的保护罩1也示例性的采用了半球形的形状。另外，在图5中，保护罩1设置在支撑部件2上。支撑部件2上还设置有检测部件3，在不受外力的情况下，检测部件3与保护罩1之间与预设宽度的间隙，当受到外力作用的情况下，保护罩1发生位移并与检测部件3接触，以使得检测部件3生成告警信号。
具体的，在一种实现方式中，考虑到防碰撞装置101在安装以及调试时的便捷性，本发明实施例中支撑部件2与放射治疗设备的腔体结构012之间进行可拆卸固定。
例如可以通过螺钉连接支撑部件2与放射治疗设备的腔体结构012。本发明实施例中，通过螺钉连接的方式将支撑部件2与腔体结构进行连接，从而便于防碰撞装置101的安装和拆卸。同时当需要对防碰撞装置101进行调试时，还可以通过调节螺钉的耦合圈数对支撑部件2的位置进行微调，以适应检测需要。
具体的，为了使保护罩1在不受外力作用的情况下能够由支撑部件2支撑在预设位置，在受到外力作用的情况下保护罩可以发生位移。本发明实施例中，支撑部件2上分布有多个弹性隔离件22。例如图4所示，支撑部件2具有一个环形结构21。环形结构21上分布有多个弹性隔离件22(弹性隔离件22-1、22-2、22-3、22-4)。再如图5所示，环形结构21上的弹性隔离件22。
弹性隔离件22用于在保护罩1不受外力作用的情况下，将保护罩1支撑在支撑部件2的中部空间内的预设位置，并使保护罩1与支撑部件2之间有预设宽度的间隙。当保护罩1受到外力作用的情况下，相 应位置的弹性隔离件22发生形变，使保护罩1发生位置并与检测部件3接触。
具体的，在一种实现方式中，多个弹性隔离件22可以均匀分布在环形结构21上。或者考虑到保护罩1自身的重力的影响，在保护罩1的下方分布密度更多的弹性隔离件22，以使保护罩1的四周与环形结构21的间隙更均匀。
进一步的，在一种实现方式中，支撑部件2的内侧对应于多个弹性隔离件22的位置设置有多个隔离孔211。多个弹性隔离件22分别嵌在多个隔离孔211中。
另外，多个弹性隔离件22与多个隔离孔211可以分别通过螺纹耦合的方式固定。
在一种实现方式中，本发明实施例中，上述多个弹性隔离件22中每个弹性隔离件22分别包括抵触件221、固定件222以及弹簧223；
其中，在弹性隔离件22中，固定件222与对应的隔离孔211固定；弹簧223的一端连接抵触件221，另一端连接固定件222；抵触件221与保护罩1相抵接。
具体的，本发明实施例中，抵触件221可以包括钢球、固定件222可以包括螺纹塞。
示例性的，图6为将图5中的弹性隔离件22部分放大后的结构示意图。其中，环形结构21的内侧设置有隔离孔211。弹性隔离件22包括钢球221、螺纹塞222以及弹簧223。其中螺纹塞222的外壁与隔离孔211的侧壁分别设置有对应的螺纹，以使得螺纹塞222与对应的隔离孔211能够通过对应的螺纹进行固定。
在一种实现方式中，隔离孔211可以设置为贯穿支撑部件2的孔洞，以便可以从支撑部件2的外侧将弹性隔离件22安装至相应位置。如图6所示，隔离孔211贯穿环形结构21。
另外，具体的，保护罩1与支撑部件2之间的间隙的平均宽度可保持在1.5mm。如图6所示，保护罩1与环形结构21之间的距离为1.5mm。
在另一种实现方式中，检测部件3具体包括多个检测单元31。检测部件3包括31-1、31-2、31-3、31-4。检测单元31分布在支撑部件 2上(具体的，如图4所示，检测单元31可以分布在环形结构21上)。其中，为了保证检测结果的准确性，多个检测单元31可均匀分布在支撑部件2上。当保护罩1受到外力挤压时，保护罩1与相应位置的检测单元31相接触，以使检测部件3产生告警信号。
支撑部件2上对应于多个检测单元31的位置设置有多个通孔212，多个检测单元31分别嵌在多个通孔212中。如图7所示，环形结构21上设置有通孔212，用于将检测单元31嵌在通孔212中。多个检测单元31与多个通孔212分别通过螺纹耦合的方式固定。
具体的，图7中检测单元31有触头311和螺套312组成。多个检测单元31与多个通孔212分别通过螺纹耦合的方式固定。触头311固定在螺套312上，用于与保护罩1接触。
在一种实现方式中，保护罩1与相应位置的检测单元31相接触的部分具有导电功能。例如，保护罩可以由导电的金属材料制成。
检测部件3还包括检测电路32。检测电路32用于当保护罩1与相应位置的检测单元31相接触时形成电流回路并产生告警信号。
其中，如图7所示，上述多个检测单元31中每个检测单元31分别包括导电触头311和绝缘套312。
其中，绝缘套312与对应的通孔212可以通过螺纹耦合的方式固定。
导电触头311固定在绝缘套312上，并在不受外力作用的情况下与保护罩1不接触，在保护罩1受到外力作用下发生位移时与保护罩1接触。
其中，绝缘套312为绝缘材料制成，导电触头311为导电材料制成。
在一种实现方式中，多个检测单元31中任意相邻的两个检测单元31的导电触头分别连接检测电路32的第一端和第二端；其中检测电路32在第一端和第二端导通后产生告警信号。
示例性的，如图8所示，环形结构21上设置有八个检测单元31。其中，八个检测单元31中任意相邻的两个检测单元31分别连接检测电路32的正极和负极。这样一来，当保护罩1受到外力产生位移时，会使相邻的两个检测单元与保护罩1发生接触。如图8中虚线所示为保护罩1受到外力后的位置，此时保护罩1与右上方的两个检测单元 发生接触。从而使检测电路32中产生电流回路，触发告警信号。
在另一种实现方式中，与上述实例类似，保护罩1具有导电功能。检测部件包括检测电路32。多个检测单元31中每个检测单元31分别包括导电触头311和绝缘套312。其中，绝缘套312与对应的通孔212通过螺纹耦合的方式固定。导电触头311固定在绝缘套312上，并在不受外力作用的情况下与保护罩1不接触，在保护罩1受到外力作用下发生位移时与保护罩1接触。以上内容可参照上述实施例的描述，重复之处不再赘述。
另外，在本实现方式中，多个检测单元31中每个检测单元31的导电触头311分别连接检测电路32的第一端；保护罩1连接检测电路32的第二端；其中检测电路32在第一端和第二端导通后产生告警信号。
具体的，为了使保护罩1与检测电路32的第二端连接，本实现方式中，考虑到可以利用上述用于支撑保护罩1的弹性隔离件22来作为导电媒介，从而使保护罩1与检测电路32的第二端连接。因此本实现方式中，还包括：
多个弹性隔离件22中包括至少一个弹性隔离件22与检测电路32的第二端连接，以使得保护罩1通过至少一个弹性隔离件22连接检测电路32的第二端。
示例性的，如图9所示，环形结构21上设置有四个检测单元31。其中，四个检测单元31中每个检测单元31分别连接检测电路32的负极。另外，检测道路32的正极与一个弹性隔离件22连接，从而使得保护罩1通过至少一个弹性隔离件22连接检测电路32的正极。这样一来，当保护罩1受到外力产生位移时，会使相应位置的检测单元31与保护罩1发生接触。如图9中虚线所示为保护罩1受到外力后的位置，此时保护罩1与右上方的检测单元发生接触。从而使检测电路32中产生电流回路，触发告警信号。
需要说明的是，本发明实施例中，仅示例性的使检测电路32的一端连接了一个弹性隔离件。在具体实施时，可以将多个弹性隔离件中的每个或者其中几个弹性隔离件与检测电路32的一端连接，从而保证检测结果的准确性，对此本发明不作限制。
在一种实现方式中，考虑到保护罩的质量不宜过重，因此为了减 轻保护罩的质量，本发明实施例中想到可以仅在保护罩的表面上与各个触点连接的位置采用导电材料，例如铜、铝等材料。在其他部位，则采用质量更轻的材料，例如塑料、树脂等。因此，本发明实施例中还包括：
保护罩1的表面包括相互连通的导电材料；相互连通的导电材料将保护罩1表面上与多个检测单元31的导电触头对应的位置连通；
当保护罩1通过至少一个弹性隔离件22连接检测电路32的第二端时(如图9所示)，相互连通的导电材料还包括保护罩1表面上与至少一个弹性隔离件22接触的部分。
需要说明的是，在另一种实现方式中，本发明实施例中除保护罩的表面上与各个触点连接的位置采用导电材料之外，保护罩的其他部分也可以采用金属材料，对此本发明可以不做限制。
在另一种实现方式中，本发明实施例中还可以利用微动开关来实现上述多个检测单元31的功能。因此，本发明实施例中，多个检测单元中每个检测单元31还包括微动开关。其中，当保护罩1受到外力挤压时，保护罩1与形影位置的微动开关相接触，以使得微动开关的开关状态改变。从而使的检测部件生产告警信号。
在一种实现方式中，本发明实施例所提供的防碰撞装置还包括控制模块。其中控制模块与检测部件3连接。控制模块用于在检测部件生产告警信号后，发出报警并停止放射治疗。
具体的，控制模块还用于在检测部件生成告警信号后，控制治疗床向之前运动方向相反的方向移动。本发明实施例中，当检测部件生成告警信号后，还可以通过控制模块控制治疗床向相反方向移动，从而能够更好的保护患者以及设备的安全。
实施例二：
本发明实施例还提供一种放射治疗设备。该放射治疗设备包括放射装置、治疗床以及上述第一方面提供的防碰撞装置。
具体的，在一种实现方式中，本发明实施例所提供的放射治疗设备还包括治疗床控制系统，可接收防碰撞装置生成的碰撞信号，并驱动治疗床移动。
在另一种实现方式中，本发明实施例所提供的放射治疗设备还包括：射源装置以及射源装置控制器，射源装置在射源装置控制器的控制下可发出放射束以进行放射治疗。
射源装置控制器可接收防碰撞装置生成的碰撞信号，并关闭射源装置以停止放射治疗。
另外，放射治疗设备中放射装置以及治疗床的具体描述，可参照上文中对附图1的描述内容以及现有放射治疗设备的相关资料，在此不再赘述。
以上仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求所述的保护范围为准。

Claims (18)

  1. 一种防碰撞装置，应用于放射治疗设备上，所述放射治疗设备包括一个放射治疗腔；其特征在于，所述防碰撞装置包括：保护罩、支撑部件以及检测部件；其中：
    所述保护罩的外形轮廓与所述放射治疗腔内空间相匹配；
    所述支撑部件安装在所述放射治疗设备上；所述保护罩设置在所述支撑部件上；
    在不受外力作用的情况下，所述保护罩由所述支撑部件支撑在预设位置并与所述检测部件之间有预设宽度的间隙；当受到外力作用的情况下，所述保护罩发生位移并与所述检测部件接触，以使得所述检测部件生成告警信号。
  2. 根据权利要求1所述防碰撞装置，其特征在于，所述检测部件设置在所述支撑部件上。
  3. 根据权利要求1所述防碰撞装置，其特征在于，所述支撑部件与所述放射治疗设备的腔体结构可拆卸固定。
  4. 根据权利要求1所述防碰撞装置，其特征在于，所述支撑部件上分布有多个弹性隔离件；
    所述弹性隔离件用于在所述保护罩不受外力作用的情况下，将所述保护罩支撑在所述支撑部件的中部空间内的预设位置，并使所述保护罩与所述支撑部件之间有预设宽度的间隙；当所述保护罩受到外力作用的情况下，相应位置的弹性隔离件发生形变，使所述保护罩发生位移并与所述检测部件接触。
  5. 根据权利要求4所述防碰撞装置，其特征在于，所述支撑部件的内侧对应于所述多个弹性隔离件的位置设置有多个隔离孔，所述多个弹性隔离件分别嵌在所述多个隔离孔中。
  6. 根据权利要求4所述防碰撞装置，其特征在于，所述多个弹性隔离件中每个弹性隔离件分别包括抵触件、固定件以及弹簧；
    其中，在弹性隔离件中，所述固定件与对应的隔离孔固定；所述弹簧的一端连接所述抵触件，另一端连接所述固定件；所述抵触件与所述保护罩相抵接。
  7. 根据权利要求1所述防碰撞装置，其特征在于，所述检测部件包括多个检测单元；所述多个检测单元分布在所述支撑部件上；
    当所述保护罩受到外力挤压时，所述保护罩与相应位置的检测单元相接触，以使所述检测部件产生告警信号。
  8. 根据权利要求7所述防碰撞装置，其特征在于，所述支撑部件上对应于所述多个检测单元的位置设置有多个通孔，所述多个检测单元分别嵌在所述多个通孔中。
  9. 根据权利要求7所述防碰撞装置，其特征在于，所述检测部件还包括检测电路；
    所述检测电路用于当所述保护罩与相应位置的检测单元相接触时，通过所述保护罩与相应位置的检测单元形成电流回路并产生所述告警信号。
  10. 根据权利要求9所述防碰撞装置，其特征在于，所述多个检测单元中每个检测单元分别包括导电触头和绝缘套；
    所述绝缘套与对应的通孔固定；所述导电触头固定在所述绝缘套上，并在所述保护罩不受外力作用的情况下与所述保护罩不接触，在所述保护罩受到外力作用下发生位移时与所述保护罩接触。
  11. 根据权利要求9所述防碰撞装置，其特征在于，
    所述多个检测单元中任意相邻的两个检测单元的导电触头分别连接所述检测电路的第一端和第二端；其中所述检测电路在所述第一端和所述第二端导通后产生所述告警信号。
  12. 根据权利要求9所述防碰撞装置，其特征在于，
    所述多个检测单元中每个检测单元的导电触头分别连接所述检测电路的第一端；所述保护罩连接所述检测电路的第二端；其中所述检测电路在所述第一端和所述第二端导通后产生所述告警信号。
  13. 根据权利要求12所述防碰撞装置，其特征在于，所述支撑部件上分布有多个弹性隔离件；所述弹性隔离件用于在所述保护罩不受外力作用的情况下，将所述保护罩支撑在所述支撑部件的中部空间内的预设位置，并使所述保护罩与所述支撑部件之间有预设宽度的间隙；当所述保护罩受到外力作用的情况下，相应位置的弹性隔离件发生形变，使所述保护罩发生位移并与所述检测部件接触；
    所述多个弹性隔离件中包括至少一个弹性隔离件与所述检测电路的第二端连接并与所述保护罩接触，以使得所述保护罩通过所述至少一个弹性隔离件连接所述检测电路的第二端。
  14. 根据权利要求9-13任一项所述防碰撞装置，其特征在于，所述保护罩的表面包括相互连通的导电材料；所述相互连通的导电材料将所述保护罩表面上与所述多个检测单元的导电触头对应的位置连通；
    当所述保护罩通过至少一个弹性隔离件连接所述检测电路的第二端时，所述相互连通的导电材料还包括所述保护罩表面上与所述至少一个弹性隔离件接触的部分。
  15. 根据权利要求1所述防碰撞装置，其特征在于，所述检测部件包括微动开关；其中，
    当所述保护罩受到外力挤压时，所述保护罩与相应位置的微动开关相接触，以使得所述微动开关的开关状态改变并产生所述告警信号。
  16. 一种放射治疗设备，其特征在于，包括放射装置、治疗床以及权利要求1-15任一项所述的防碰撞装置。
  17. 根据权利要求16所述的放射治疗设备，其特征在于，所述放射治疗设备还包括治疗床控制系统，可接收所述防碰撞装置生成的碰撞信号，并驱动所述治疗床移动。
  18. 根据权利要求16所述的放射治疗设备，其特征在于，所述放射治疗设备还包括射源装置及射源装置控制器，所述射源装置在射源装置控制器的控制下可发出放射束以进行放射治疗；
    所述射源装置控制器可接收所述防碰撞装置生成的碰撞信号，并关闭射源装置以停止放射治疗。
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CN108969908A (zh) * 2018-07-12 2018-12-11 北京慧仁海泰创新医疗技术服务有限公司 一种放疗设备及其防碰装置和防碰方法

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* Cited by examiner, † Cited by third party
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GB2624180A (en) * 2022-11-08 2024-05-15 Elekta ltd A bore for a radiotherapy device
EP4368248A1 (en) * 2022-11-08 2024-05-15 Elekta Limited An improved bore design for a radiotherapy device

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