WO2023070249A1 - 一种用于放射治疗的装置 - Google Patents

一种用于放射治疗的装置 Download PDF

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Publication number
WO2023070249A1
WO2023070249A1 PCT/CN2021/126017 CN2021126017W WO2023070249A1 WO 2023070249 A1 WO2023070249 A1 WO 2023070249A1 CN 2021126017 W CN2021126017 W CN 2021126017W WO 2023070249 A1 WO2023070249 A1 WO 2023070249A1
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Prior art keywords
bottom plate
mounting hole
radiotherapy according
positioning column
boss
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PCT/CN2021/126017
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English (en)
French (fr)
Inventor
王玮
曾志文
傅晓峰
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广州科莱瑞迪医疗器材股份有限公司
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Priority to PCT/CN2021/126017 priority Critical patent/WO2023070249A1/zh
Publication of WO2023070249A1 publication Critical patent/WO2023070249A1/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 invention relates to the field of medical equipment, in particular to a device for radiotherapy.
  • Radiation therapy is one of the main means of tumor treatment. It uses high-energy rays to damage the DNA of cancer cells, making cancer cells lose the ability to divide and replicate, so as to achieve the purpose of shrinking and eliminating tumors.
  • the fixation of the patient's head is often achieved by means of a mask, the mask is fixed on the mask fixing device, and then the mask fixing device is fixed in the radiation therapy system.
  • the fixing method of the mask fixing device and the radiation therapy system is not only cumbersome, but also not firm, and often falls off during the treatment process; at the same time, the fixing structure between the two accounts for a large proportion, which seriously affects the quality of radiation rays. penetration and path.
  • the invention provides a device for radiotherapy, which can reduce the influence of the frame and the bottom plate on the radiation while ensuring that the frame and the bottom plate are firmly fixed.
  • a device for radiotherapy includes a frame and a bottom plate with a low-temperature film, a plurality of positioning columns are arranged on the lower surface of the frame, and the outer wall of the positioning column has a radially outwardly protruding protrusion.
  • the bottom plate is provided with a mounting hole, the mounting hole from top to bottom, the inner diameter gradually decreases, the inner wall of the mounting hole is formed with a step surface at the change of the inner diameter, when the positioning column and the mounting When the holes are mated and connected, the protrusion abuts against the stepped surface.
  • the bottom plate has an upward protruding boss, the installation hole is located on the boss, and the inner wall of the installation hole is smoothly transitioned to the boss.
  • the boss and the bottom plate make a smooth transition.
  • the protruding thickness of the boss relative to the bottom plate is a
  • the thickness of the bottom plate is b
  • a and b satisfy: 0.5 ⁇ a/b ⁇ 1.5.
  • the bottom plate has an upper pillow part and a bed body part
  • the upper pillow part is an arc structure conforming to the shape of the head, neck and shoulders of the human body
  • the installation hole is located at the edge of the upper pillow part.
  • the side wall of the positioning post has an opening extending axially, and the opening forms an elastic claw at the end of the positioning post.
  • the openings are evenly distributed along the side wall, and the number of the openings is two or more.
  • the number of the bumps is at least two, and they are arranged on the side walls between the openings.
  • the positioning column is a hollow structure.
  • the height of the positioning column is c
  • the depth of the installation hole is d
  • c and d satisfy: 0.5 ⁇ c/d ⁇ 1.
  • the present invention has the following advantages:
  • An embodiment of the present invention provides a device for radiotherapy, which includes a frame and a bottom plate with a low-temperature film, a plurality of positioning columns are provided on the lower surface of the frame, and a radially outward
  • the protruding bump is provided with a mounting hole whose inner diameter gradually decreases from top to bottom on the bottom plate, wherein the inner side wall of the mounting hole is formed with a stepped surface.
  • the positioning column is inserted into the mounting hole, wherein the lower end of the positioning column is inserted into the smallest inner diameter part of the mounting hole, and the protrusion on the side wall of the positioning column is aligned with the mounting hole.
  • connection method between the positioning column and the mounting hole is simpler in structure and smaller in size than the traditional fixed connection device, which can reduce the impact on high-energy rays during radiation therapy and ensure the therapeutic effect.
  • FIG. 1 is a schematic diagram of a frame provided in an embodiment of the present invention
  • Fig. 2 is a schematic diagram of the bottom plate provided in the embodiment of the present invention.
  • Fig. 3 is a partial enlarged view of the bottom plate provided in the embodiment of the present invention.
  • An embodiment of the present invention provides a device for radiotherapy, which is used to solve the technical problem that the connection between the frame and the bottom plate is not reliable and affects the penetration of rays.
  • a device for radiotherapy provided by the embodiment of the present invention includes a frame 1 and a bottom plate 5 with a cryogenic film, and a plurality of hollow positioning holes are arranged on the lower surface of the frame 1 Column 2, in this embodiment, there are four radially outward protruding protrusions 3 on the side wall of positioning column 2, and the lower end surface of positioning column 2 is a smooth arc structure, which can not only avoid stress concentration phenomenon, it can also guide the positioning column 2 to be smoothly inserted into the installation hole of the base plate 5. Further, the side wall of the positioning column 2 has two axially extending openings 4, and the openings connect the inside and the outside of the hollow positioning column 2.
  • the space is connected, and the opening 4 extends to the lower end surface of the positioning column 2, so that the end of the positioning column forms a deformable elastic claw.
  • the number of openings 4 is 2
  • the number of bumps 3 is 4
  • the material of the bottom plate 5 is preferably made of carbon fiber or glass fiber or Kevlar material, which can also be used while ensuring the strength of the bottom plate 5 Reduce the weight of the bottom plate 5, increase the comfort of the patient when lying down, and also reduce the impact on the radiation; the positioning column 2 with a hollow structure ensures the strength of the column and can meet the density requirements of the radiation at the same time, avoiding the penetration of the radiation affect the itinerary.
  • the number of bumps 3 and openings 4 is not limited to the number listed in this embodiment, and the material of the bottom plate 5 is not limited to the above three materials, which can be determined according to specific requirements in actual production.
  • the bottom plate 5 has an upper pillow 6 and a bed body 7 , the upper pillow 6 is an arc structure conforming to the shape of the head, neck and shoulders of the human body, and the installation hole 9 is located at the edge of the upper pillow 6 .
  • the thickness of the upper pillow part 6 is greater than that of the bed body part 7 .
  • the bottom plate 5 is provided with a boss 10 protruding from the upper surface of the bottom plate 5 , the mounting hole 9 is located on the boss 10 .
  • the installation hole 9 of the present invention is a tapered hole whose inner diameter gradually decreases from top to bottom, and is a two-stage diameter reduction.
  • the inner wall of the installation hole 9 is formed with an annular stepped surface 11 at the place where the inner diameter changes.
  • the circular arc-shaped lower end surface of the positioning column 2 is in contact with the smooth arc surface formed between the boss 10 and the mounting hole 9, realizing the guiding effect on the positioning column 2. 2.
  • the positioning column 2 is pressed by the side wall of the mounting hole 9. At this time, the elastic claw at the end of the positioning column 2 makes the positioning column 2 elastically deformed to adapt to different sizes of mounting holes 9.
  • the projection 3 on the side wall of the positioning column 2 abuts against the step surface 11, and the arc-shaped lower end surface of the positioning column 2 is inserted into the smallest part of the inner diameter of the mounting hole 9, and the projection 3 and the positioning column 2
  • the arc-shaped lower end surface of the positioning column 2 and the mounting hole 9 jointly realize the two-stage fixed connection, ensuring the firmness of the connection between the two.
  • the connection structure is simple and the space is small, which greatly reduces the influence on the radiation .
  • the protruding thickness of the boss 10 relative to the bottom plate 5 is a
  • the thickness of the bottom plate 5 is b
  • a and b satisfy: 0.5 ⁇ a/b ⁇ 1.5. If a/b ⁇ 0.5, the protruding height of the boss 10 relative to the bottom plate 5 is small, the depth of the mounting hole 9 cannot be effectively increased, and the contact length between the positioning post 2 and the mounting hole 9 cannot be ensured, and the mounting hole cannot be increased. 9 and the stability of the connection between the positioning column 2; if a/b>1.5, then the height of the boss 10 protruding from the bottom plate 5 is too large at this time, which increases the weight of the bottom plate, and will also affect the penetration of rays.
  • Adverse effects can not meet the incidence of rays from multiple angles.
  • the relationship between the height c of the positioning column 2 and the depth d of the installation hole 9 satisfies: 0.5 ⁇ c/d ⁇ 1.
  • c/d ⁇ 0.5 that is, the contact length between the positioning column 2 and the mounting hole 9 is too small to ensure the firmness of the connection between the two, so that the frame 1 is easy to fall off from the bottom plate 5;
  • c/d ⁇ 1 the lower end of the positioning column 2 will protrude from the lower surface of the bottom plate 5, which increases the weight of the device and affects the incidence and penetration of rays; or the positioning column 2 cannot be completely inserted into the mounting hole due to the blocking of the bump 3 9, so that the frame 1 cannot be bonded to the bottom plate 5, and the requirement of uniform density change of the device cannot be met, and the incidence and penetration of rays will also be affected, thereby failing to achieve the purpose of precise radiotherapy.
  • the above four parameters cooperate with each other, not only can realize the stable connection
  • the mounting hole 9 is located on the upper pillow 6, and in order to reduce the influence on the radiation, the thickness of the upper pillow 6 is 2 mm, which is thinner than the thickness of the bed body 7, and the thickness of the boss is smaller than that of the upper pillow.
  • the protruding height of the portion 6 is also 2 mm.
  • the height of the positioning column 2 is 3.9 mm, and the depth of the mounting hole 9 is 4 mm.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

一种用于放射治疗的装置，包括附有低温膜的边框（1）和底板（5），在边框（1）的下表面设置有多个定位柱（2），定位柱（2）的外侧壁具有径向向外突出的凸块（3），而底板（5）上设置有自上而下、内径逐渐减小安装孔（9），安装孔（9）的内侧壁在内径变化处形成有台阶面（11），当定位柱（2）与安装孔（9）配合连接时，凸块（3）抵靠在台阶面（11）上。装置在保证边框（1）和底板（5）固定牢靠的同时，又能减小两者对射线的影响。

Description

一种用于放射治疗的装置 技术领域
本发明涉及医疗器械领域领域，尤其涉及一种用于放射治疗的装置。
背景技术
放射治疗是肿瘤治疗的主要手段之一，它是利用高能射线来破坏癌细胞的DNA，使癌细胞失去分裂与复制的能力，从而达到缩小、消除肿瘤的目的。
在头部肿瘤的治疗过程当中，通常需要对患者的头部进行固定以避免在放射治疗过程中因患者移动而影响治疗效果。对于患者头部的固定往往采用面膜的方式来实现，将面膜固定在面膜固定装置上，再将面膜固定装置固定至放射治疗系统中。但是在现有技术中，面膜固定装置与放射治疗系统的固定方式不仅繁琐，而且也不牢固，经常在治疗过程中脱落；与此同时两者之间的固定结构占比很大，严重影响射线的穿透和路径。
因此，在保证面膜固定装置与放射治疗系统两者之间固定牢靠的前提下，减小其占有空间很小，满足多个角度射线的入射和穿透，是本领域技术人员急需解决的。
发明内容
本发明提供了一种用于放射治疗的装置，在保证边框和底板固定牢靠的同时，又能减小两者对射线的影响。
本发明提供的一种用于放射治疗的装置，包括附有低温膜的边框和底板，所述边框的下表面设置有多个定位柱，所述定位柱的外壁具有径向向外突出的凸块，所述底板上设置有安装孔，所述安装孔自上而下、内径逐渐减小，所述安装孔的内侧壁在内径变化处形成有台阶面，当所述定位柱与所述安装孔配合连接时，所述凸块抵靠在所述台阶面上。
优选的，所述底板具有向上突出的凸台，所安装孔位于所述凸台上，所述安装孔的内壁与所述凸台圆滑过渡。
优选的，所述凸台与所述底板圆滑过渡。
优选的，所述凸台相对于所述底板突出的厚度为a，所述底板的厚度为b，a和b满足：0.5≤a/b≤1.5。
优选的，所述底板具有上枕部和床体部，所述上枕部为符合人体头颈肩形状的弧形结构，所述安装孔位于所述上枕部的边沿。
优选的，所述定位柱的侧壁具有轴向延伸的开口，所述的开口将所述定位柱的末端形成弹性爪。
优选的，所述开口沿侧壁均匀分布，所述开口的数量为两个及以上。
优选的，所述凸块的数量至少为两个，并设置于所述开口之间的侧壁上。
优选的，所述定位柱为中空结构。
优选的，所述定位柱的高度为c，所述安装孔的深度为d，c和d满足：0.5≤c/d＜1。
从以上技术方案可以看出，本发明具有以下优点：
本发明实施例提供了一种用于放射治疗的装置，包括附有低温膜的边框和底板，所述边框的下表面设置有多个定位柱，而在定位柱的外侧壁具有径向向外突出的凸块，在底板上设置有自上而下内径逐渐减小的安装孔，其中安装孔的内侧壁形成有台阶面。在本实施例中，当边框与底板需要固定连接在一起时，将定位柱插入到安装孔内，其中定位柱的下端插入到安装孔的最小内径部分，而定位柱侧壁上的凸块与安装孔的内壁牢固抵靠在一起，实现两级固定连接，保证了边框与底板的连接牢固性。同时，定位柱与安装孔的连接方式相较于传统的固定连接装置结构简单、体积小，在放射治疗过程中能够减少对高能射线的影响，保证治疗效果。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或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性的前提下，还可以根据这些附图获得其它的附图。
图1为本发明实施例中提供的边框示意图；
图2为本发明实施例中提供的底板示意图；
图3为本发明实施例中提供的底板局部放大图。
1-边框，2-定位柱，3-凸块，4-开口，5-底板，6-上枕部，7-床体部，9-安装孔，10-凸台，11-台阶面。
具体实施方式
本发明实施例提供了一种用于放射治疗的装置，用于解决边框与底板之间的连接方式不牢靠、且对射线的穿透产生影响的技术问题。
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，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，下面所描述的实施例仅仅是本发明一部分实施例，而非全部的实施例。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它实施例，都属于本发明保护的范围。
请参阅图1-图3所示，本发明实施例提供的一种用于放射治疗的装置，包括附有低温膜的边框1和底板5，在边框1的下表面设置有多个中空的定位柱2，在本实施例中，在定位柱2的侧壁具有四个径向向外突出的凸块3，而定位柱2的下端面为是光滑的圆弧结构，不仅能够避免出现应力集中现象，还能引导定位柱2顺利插入到底板5的安装孔内，进一步的，定位柱2的侧壁具有两个轴向延伸的开口4，所述开口将中空的定位柱2的内部与外部空间实现连通，且开口4延伸至定位柱2的下端面处，使得定位柱的末端形成可以形变的弹性爪。在本实施例中，开口4的数量为2个，凸块3的数量是4个，而底板5的材质优选碳纤维或玻璃纤维或凯夫拉材料制成，在保证底板5强度的同时也可以减轻底板5的重量、增加患者躺下的舒适度，而且还能减小对射线的影响；中空结构的定位柱2保证柱的强度同时又能满足射线对密度的需求，避免对射线的穿透和行程产生影响。本领域技术人员应当知道，凸块3和开口4的个数并不仅局限本实施例列举的数量，底板5的材质也并不局限上述三种材质，在实际生产中可以根据具体需求而定。
底板5具有上枕部6和床体部7，所述上枕部6为符合人体头颈肩形状的弧形结构，所述安装孔9位于所述上枕部6的边沿。在本发明中，为了尽可能减小对射线的影响，保证射线的穿透性，上枕部6的厚度较床体部7的厚度。与此同时，为了增加安装孔9与定位柱2之间的接触长度，进而保证底板与边框连接的牢固性，防止两者滑脱，在底板5上设置有突出于 底板5上表面的凸台10，安装孔9位于所述凸台10上。为了使得凸台10与底板5之间实现厚度均匀过渡，满足射线对密度梯度变化的需求，避免对射线的穿透和行程产生影响，凸台10与底板5以及凸台10与安装孔9之间均是通过弧形结构实现圆滑过渡的。本发明的安装孔9是自上而下内径逐渐减小的渐变孔，且为两级变径，安装孔9的内侧壁在内径变化处形成有环形的台阶面11。当边框1需要固定在底板5上时，定位柱2的圆弧形下端面与凸台10和安装孔9之间形成的光滑弧面相接触，实现了对定位柱2的引导作用，在定位柱2顺着安装孔9向下移动时，定位柱2受到安装孔9侧壁的挤压力，此时定位柱2末端的弹性爪使得定位柱2发生弹性形变，以适配不同尺寸的安装孔9。在安装结束后，定位柱2侧壁上的凸块3抵靠在台阶面11上，而定位柱2的圆弧形下端面插入到安装孔9内径最小部分内，凸块3与定位柱2的圆弧形下端面共同实现了定位柱2与安装孔9的两级固定连接，保证了两者的连接牢固性，同时该种连接结构简易、空间体积小，大大减小了对射线的影响。
本发明中，凸台10相对于底板5突出的厚度为a，而底板5的厚度为b，其中a和b满足：0.5≤a/b≤1.5。若a/b＜0.5，则凸台10相对于底板5突出的高度较小，无法有效增加安装孔9的深度，无法确保定位柱2与安装孔9之间的接触长度，进而无法增加安装孔9与定位柱2之间的连接的稳固性；若a/b＞1.5，则此时凸台10突出于底板5的高度过大，增加了底板的重量，而且也会对射线的穿透产生不利的影响，无法满足射线多个角度的入射。此时定位柱2的高度c，与安装孔9的深度d之间满足：0.5≤c/d＜1。而若c/d＜0.5，即定位柱2与安装孔9之间的接触长度过小，无法保证两者之间连接的牢固性，使得边框1易从底板5上脱落；若c/d≥1，则定位柱2的下端会凸出底板5的下表面，即增加了装置的重量，又会影响射线的入射和穿透；或者定位柱2由于凸块3的阻挡无法完全插入到安装孔9内，使得边框1无法与底板5贴合在一起，无法达到装置的密度均匀变化的要求，也会影响射线的入射和穿透，进而无法实现精确放疗的目的。上述四种参数相互配合，既能实现边框与底板5的稳定连接，又能使得其对射线的穿透和入射的影响降到最低，保证放射治疗的效果。
在本实施例中，安装孔9位于上枕部6，而为了减小对射线的影响，上枕 部6的厚度为2mm，较床体部7厚度薄，而凸台的相较于上枕部6突出的高度也为2mm。同样的，定位柱2的高度为3.9mm，而安装孔9的深度为4mm。
以上所述，以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种用于放射治疗的装置，其特征在于，包括附有低温膜的边框和底板；
    所述边框的下表面设置有多个定位柱，所述定位柱的外壁具有径向向外突出的凸块；
    所述底板上设置有安装孔，所述安装孔自上而下、内径逐渐减小，所述安装孔的内侧壁在内径变化处形成有台阶面，当所述定位柱与所述安装孔配合连接时，所述凸块抵靠在所述台阶面上。
  2. 根据权利要求1所述的用于放射治疗的装置，其特征在于，所述底板上设置有安装孔，所述底板的上表面具有环绕所述安装孔的凸台，所述安装孔的内壁与所述凸台圆滑过渡。
  3. 根据权利要求2所述的用于放射治疗的装置，其特征在于，所述凸台与所述底板圆滑过渡。
  4. 根据权利要求2所述的用于放射治疗的装置，其特征在于，所述凸台相对于所述底板突出的厚度为a，所述底板的厚度为b，a和b满足：0.5≤a/b≤1.5。
  5. 根据权利要求4所述的用于放射治疗的装置，其特征在于，所述底板具有上枕部和床体部，所述上枕部为符合人体头颈肩形状的弧形结构，所述安装孔位于所述上枕部的边沿。
  6. 根据权利要求1所述的用于放射治疗的装置，其特征在于，所述定位柱的侧壁具有轴向延伸的开口，所述的开口将所述定位柱的末端形成弹性爪。
  7. 根据权利要求6所述的用于放射治疗的装置，其特征在于，所述开口沿侧壁均匀分布，所述开口的数量为两个及以上。
  8. 根据权利要求7所述的用于放射治疗的装置，其特征在于，所述凸块的数量至少为两个，并设置于所述开口之间的侧壁上。
  9. 根据权利要求1所述的用于放射治疗的装置，其特征在于，所述定位柱为中空结构。
  10. 根据权利要求1所述的用于放射治疗的装置，其特征在于，所述定位柱的高度为c，所述安装孔的深度为d，c和d满足：0.5≤c/d＜1。
PCT/CN2021/126017 2021-10-25 2021-10-25 一种用于放射治疗的装置 WO2023070249A1 (zh)

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US5775337A (en) * 1997-03-21 1998-07-07 Biotek Immobilization device
US20050229936A1 (en) * 2002-10-04 2005-10-20 Med-Tec Iowa, Inc. Reinforced thermoplastic patient restraints for radiation therapy
WO2011004347A2 (fr) * 2009-07-10 2011-01-13 Raymond Naftule Élément décoratif tridimensionnel, objet décoré et leurs procédés de fabrication
US20120167898A1 (en) * 2010-12-29 2012-07-05 Indiana University Research And Technology Corporation Patient Immobilization Device For Radiotherapy Treatment System And Methods
US20150099916A1 (en) * 2013-10-08 2015-04-09 Lori Linn JUREK Head immobilization device with inhaler, method for making same and method of using same
CN109432615A (zh) * 2018-12-18 2019-03-08 济南市第四人民医院 一种用于放射治疗头颈肩定位的定位架及其使用方法
CN211461823U (zh) * 2019-11-07 2020-09-11 广州科莱瑞迪医疗器材股份有限公司 一种头部固定膜片的压边机构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775337A (en) * 1997-03-21 1998-07-07 Biotek Immobilization device
US20050229936A1 (en) * 2002-10-04 2005-10-20 Med-Tec Iowa, Inc. Reinforced thermoplastic patient restraints for radiation therapy
WO2011004347A2 (fr) * 2009-07-10 2011-01-13 Raymond Naftule Élément décoratif tridimensionnel, objet décoré et leurs procédés de fabrication
US20120167898A1 (en) * 2010-12-29 2012-07-05 Indiana University Research And Technology Corporation Patient Immobilization Device For Radiotherapy Treatment System And Methods
US20150099916A1 (en) * 2013-10-08 2015-04-09 Lori Linn JUREK Head immobilization device with inhaler, method for making same and method of using same
CN109432615A (zh) * 2018-12-18 2019-03-08 济南市第四人民医院 一种用于放射治疗头颈肩定位的定位架及其使用方法
CN211461823U (zh) * 2019-11-07 2020-09-11 广州科莱瑞迪医疗器材股份有限公司 一种头部固定膜片的压边机构

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