WO2021012901A1 - 定位头架 - Google Patents

定位头架 Download PDF

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Publication number
WO2021012901A1
WO2021012901A1 PCT/CN2020/099200 CN2020099200W WO2021012901A1 WO 2021012901 A1 WO2021012901 A1 WO 2021012901A1 CN 2020099200 W CN2020099200 W CN 2020099200W WO 2021012901 A1 WO2021012901 A1 WO 2021012901A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
hole
positioning
head nail
fastening
Prior art date
Application number
PCT/CN2020/099200
Other languages
English (en)
French (fr)
Inventor
李大梁
陈方正
Original Assignee
西安大医集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201921187420.XU external-priority patent/CN211383482U/zh
Priority claimed from CN201910675727.2A external-priority patent/CN112274782A/zh
Application filed by 西安大医集团股份有限公司 filed Critical 西安大医集团股份有限公司
Publication of WO2021012901A1 publication Critical patent/WO2021012901A1/zh
Priority to US17/504,152 priority Critical patent/US20220032085A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
    • 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

  • This application relates to the field of medical equipment, in particular to a positioning head frame.
  • a positioning head frame must be used to locate the lesion on the patient's head.
  • the components of the positioning head frame are made of conductive metal materials.
  • the positioning head frame will form a closed loop and generate a large induced electromotive force, which will eventually be dissipated in the form of heat energy, causing the head nail to heat up, and in severe cases, it will cause the patient's head to burn.
  • the positioning head frame breaks the closed loop formed by the positioning head frame by adding an insulating sleeve between the head nail and the pole.
  • the studs and the insulating sleeve made of insulating materials are easily worn out under frequent use, resulting in weak fixing of the studs.
  • the embodiment of the application provides a positioning headstock, including the following technical solutions:
  • a positioning head frame includes: a sleeve made of metal material; an insulating vertical rod including a head nail connection part made of insulating material; a head nail, which communicates with the Head nail connection part connection.
  • the stud connecting portion includes a connecting through hole, the sleeve is fixed in the connecting through hole, and the stud is connected to the sleeve.
  • the head nail connecting portion further includes a fastening through hole, the fastening through hole intersects the connecting through hole;
  • the positioning head frame further includes: a fastening pin, the fastening pin The fixed pin passes through the fastening through hole and abuts against the sleeve.
  • the sleeve includes a fastening blind hole, and the fastening pin fits into the fastening blind hole after passing through the fastening through hole.
  • the outer contour of at least one cross section of the sleeve in a direction perpendicular to the central axis is non-circular.
  • the positioning head frame further includes: a base ring; the insulating pole further includes: a base ring connection part connected to the head nail connection part, the base ring connection part and the base ring ⁇ Ring connection.
  • the base ring connecting portion is made of a metal material.
  • the metal material is a non-ferromagnetic metal material.
  • the non-ferromagnetic metal material includes at least one of the following materials:
  • Copper, copper alloy, titanium alloy, aluminum alloy and magnesium alloy Copper, copper alloy, copper alloy, titanium alloy, aluminum alloy and magnesium alloy.
  • the insulating material includes at least one of the following materials:
  • the head nail is connected to the head nail connection part of the insulating vertical rod through a sleeve, wherein the head nail connection part is made of insulating material, and the sleeve is made of metal material.
  • the head nail connection part made of insulating material has good insulation, which can break the closed loop formed by the positioning head frame to prevent the patient from burning;
  • the sleeve made of metal material has good insulation. Rigidity, even if it is frequently installed, adjusted or disassembled with the head nail, it is not prone to wear and tear. It is durable and ensures the stable connection of the head nail.
  • Figure 1 is a schematic structural diagram of a positioning headstock provided by an embodiment of the present application.
  • Figure 2 is an exploded view of a set of sleeves, insulating poles, and head nails in the positioning headstock provided by an embodiment of the present application;
  • Figure 3 is a top view of the sleeve, insulating pole, and head nail provided by the embodiment of the present application when combined;
  • Figure 4 is a cross-sectional view along B-B of Figure 3;
  • Fig. 5 is a schematic diagram of the structure of the sleeve in different directions provided by the embodiment of the present application.
  • the head nail is connected to the vertical rod through an insulating sleeve, and the insulating sleeve is made of insulating material, and its rigidity is poor.
  • the head nail is frequently installed, adjusted or removed, it is prone to wear and tear.
  • the nail is not firmly connected to the pole.
  • the embodiment of the present application provides a positioning head frame, which can solve the problem that the insulating sleeve is easily worn and the head nail is not firmly fixed in the related art.
  • Fig. 1 is a schematic structural diagram of a positioning head frame provided by an embodiment of the present application
  • Fig. 2 is an exploded view of a set of sleeves, an insulating pole and a head nail in the positioning head frame provided by an embodiment of the present application.
  • the positioning head frame includes multiple sets of sleeves 1, an insulating pole 2 and a head nail 3.
  • the sleeve 1 is made of metal material
  • the insulating pole 2 includes a head nail connecting portion 21 made of insulating material
  • the head nail 3 passes through the sleeve 1. Connected to the head nail connecting portion 21.
  • the head nail can be connected to the head nail connecting part of the insulating vertical rod through the sleeve.
  • the head nail connection part is made of insulating material, which has good insulation
  • the sleeve is made of metal material, which has good rigidity and is not easy to wear.
  • the head nail is no longer connected to the vertical rod through an insulating sleeve, but a sleeve made of metal material is connected to the head nail connecting portion made of an insulating material.
  • the head nail connection part is made of insulating material, which can effectively break the closed loop formed by the positioning head frame to prevent burns to the patient;
  • the sleeve is made of metal material, which has good rigidity, even Frequent installation, adjustment or disassembly, it is not easy to wear, the head nail and the insulating pole can still maintain a stable connection.
  • the stud connecting portion 21 in the insulating pole 2 is made of insulating material, and the other parts of the insulating pole 2 can be made of insulating material or non-insulating material, for example It is made of a relatively rigid metal material. Of course, a part of it may also be made of an insulating material, and a part of it may be made of a non-insulating material, such as a relatively rigid metal material.
  • the metal material mentioned above may be a non-ferromagnetic metal material.
  • the non-ferromagnetic metal material includes one or more of copper, copper alloy, titanium alloy, aluminum alloy, and magnesium alloy.
  • the aforementioned insulating material can be ceramic, graphite reinforced fiber plastic, polyetheretherketone (PEEK) plastic, polyformaldehyde (POM) plastic, polyetherimide (PEI) resin One or more of.
  • the aforementioned insulating material can also be a mixture of the aforementioned materials and other materials, such as ceramic, graphite reinforced fiber plastic, PEEK plastic, POM plastic, or a mixture of PEI resin and other materials.
  • the sleeve 1, the insulating pole 2 and the head nail 3 can be four groups as shown in FIG. 1, of course, they can also be two, three, or five groups.
  • the positioning head frame may further include: a base ring 4, and the four insulating poles 2 are all connected to the base ring 4.
  • the insulating pole 2 may further include a base ring connecting portion 22 connected to the stud connecting portion 21, and the base ring connecting portion 22 is also connected to the base ring 4.
  • the base ring connecting portion 22 has a waist-shaped hole 221 that can cooperate with the adjusting bolt 5 and the adjusting block 6 to adjust the height of the insulating vertical rod 2.
  • the adjusting bolt 5 passes through the base ring 4 and is connected to the adjusting block 6 located in the waist hole 221.
  • the base ring connecting portion 22 may be made of metal material, and the metal material has good rigidity. Compared with the base ring connecting portion 22 made of insulating material, the overall rigidity of the insulating pole 2 is better than that of the base ring 4. The connection is more stable.
  • the insulating pole 2 of the positioning head frame is not limited to two parts including the head nail connecting portion 21 and the base ring connecting portion 22, and may also include other intermediate connecting portions, which are not limited in the embodiment of the present application.
  • the head nail connecting portion 21 of the insulating pole 2 includes a connecting through hole 211
  • the sleeve 1 can be fixed in the connecting through hole 211
  • the head nail 3 can be connected to the sleeve 1.
  • the head nail is not directly connected to the head nail connection part of the insulating vertical rod, but indirectly connected to the insulating vertical rod through the sleeve. Because the sleeve made of metal material has good rigidity, even if the head nail is frequently installed, adjusted or connected It is not easy to be worn when disassembled, and the head nail and the insulating pole can still be firmly connected.
  • the stud connecting portion 21 further includes a fastening through hole 212, which is connected to the fastening through hole 212.
  • the connecting through holes 211 intersect;
  • the positioning head frame further includes: a fastening pin 7 that passes through the fastening through hole 212 and abuts against the sleeve 1. In this way, the sleeve can be fixedly connected with the connecting through hole, and when the position of the head nail is adjusted, the sleeve cannot easily move with the adjustment of the position of the head nail.
  • the sleeve 1 includes: a blind fastening hole 11, which is arranged at a position where the sleeve 1 is opposite to the fastening through hole 212, and the fastening pin 7 can pass through the fastening through hole 212. It is compatible with the fastening blind hole 11. In this way, when adjusting the position of the head nail in the sleeve, since the fastening pin penetrates the fastening through hole of the head nail connection part and fits with the fastening blind hole on the sleeve, at least the adjustment of the sleeve with the head nail position can be blocked Move in the direction of the central axis of the connection through hole.
  • the head nail 3 can be connected with the sleeve 1 through threads, that is to say, an internal thread section is provided on the inner wall of the sleeve 1, and an external thread section is provided on the outer wall of the head nail 3, and The internal and external threads are engaged, so that the position of the head nail 3 can be adjusted by rotating the head nail 3 to move along the thread.
  • the fastening pin penetrates the fastening through hole of the head nail connection part and is matched with the fastening blind hole on the sleeve, it can also prevent the sleeve from rotating around the center of the connecting through hole with the rotation of the head nail The shaft turns.
  • the outer contour of the sleeve 1 along at least one cross-section perpendicular to the central axis of the sleeve 1 can be set to be non-circular.
  • the sleeve 1 includes a first sleeve 12 and a second sleeve 13, and the whole is in the shape of a hollow boss.
  • the table surface of the second sleeve 13 is smaller than the table surface of the second sleeve 12.
  • the hollow is used to connect with the head nail.
  • the outer contour of the first sleeve 12 along the section perpendicular to the central axis is waist-shaped, which can prevent the sleeve from rotating around the central axis of the connecting through hole (or the central axis of the sleeve, or the hollow
  • the central axis of the shaft) rotates;
  • the inner contour is circular, for the head nail to pass through;
  • the outer contour shape of the second sleeve 13 along the cross section perpendicular to the central axis direction is not limited, and can be the circular shape shown in FIG. 5, It can also be set in other shapes, the inner contour is round, for the head nail to pass through.
  • the outer contour of the first sleeve 12 along the cross section perpendicular to its central axis can also be other regular or irregular shapes, such as ellipse, square, rectangle, pentagon, hexagon, isosceles trapezoid or Direct trapezoid and so on.
  • the sleeve can also be connected to the connection through hole by a fixing method such as a buckle or a clamp.
  • a fixing method such as a buckle or a clamp.
  • at least one elastic clip can be provided on the sleeve 1, and a slot adapted to the elastic clip is provided in the connection through hole 211.
  • the sleeve 1 can be clamped in the connecting through hole 211 by using the clamp.

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  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Molecular Biology (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Surgical Instruments (AREA)

Abstract

一种定位头架，包括套筒(1)、绝缘立杆(2)和头钉(3)，套筒(1)由金属材料制成；绝缘立杆(2)包括头钉连接部(21)，头钉连接部(21)由绝缘材料制成；头钉(3)通过套筒(1)与头钉连接部(21)连接。由绝缘材料制成的头钉连接部(21)具有良好的绝缘性，可以断开定位头架形成的闭合回路，防止灼烧患者；由金属材料制成的套筒(1)具有良好的刚性，即使与头钉(3)频繁安装、调整或拆卸，也不容易发生磨损，经久耐用，确保了头钉(3)的稳固连接。

Description

定位头架
本申请要求于2019年7月25日提交的申请号为201910675727.2、申请名称为“定位头架”的中国专利申请，以及于2019年7月25日提交的申请号为201921187420.X、申请名称为“定位头架”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及医疗设备领域，特别涉及一种定位头架。
背景技术
在进行头部放射治疗时，须采用定位头架对患者头部的病灶进行定位。
通常，定位头架的各组件(例如，头钉、立杆和基环等)均采用导电的金属材料制成。在进行成像扫描或放射治疗时，该定位头架会形成闭合回路，并产生较大的感应电动势，最终以热能形式耗散，导致头钉发热，严重时会导致患者头部灼伤。
相关技术中，定位头架通过在头钉和立杆之间增加绝缘套筒来断开定位头架形成的闭合回路。然而，头钉与由绝缘材料制成的绝缘套筒在频繁使用的情况下，容易被磨损，导致头钉固定不牢固。
发明内容
本申请实施例提供了一种定位头架，包括以下技术方案：
一种定位头架，包括：套筒，由金属材料制成；绝缘立杆，包括头钉连接部，所述头钉连接部由绝缘材料制成；头钉，通过所述套筒与所述头钉连接部连接。
在一种实施例中，所述头钉连接部包括：连接通孔，所述套筒固定于所述连接通孔内，所述头钉与所述套筒连接。
在一种实施例中，所述头钉连接部还包括：紧固通孔，所述紧固通孔与所述连接通孔相交；所述定位头架还包括：紧固销，所述紧固销穿过所述紧固通 孔与所述套筒相抵。
在一种实施例中，所述套筒包括：紧固盲孔，所述紧固销穿过所述紧固通孔后与所述紧固盲孔相适配。
在一种实施例中，所述套筒沿垂直于中心轴方向至少一个截面的外轮廓为非圆形。
在一种实施例中，所述定位头架还包括：基环；所述绝缘立杆还包括：与所述头钉连接部连接的基环连接部，所述基环连接部与所述基环连接。
在一种实施例中，所述基环连接部由金属材料制成。
在一种实施例中，所述金属材料为非铁磁性的金属材料。
在一种实施例中，所述非铁磁性的金属材料包括以下材料中的至少一种：
铜、铜合金、钛合金、铝合金和镁合金。
在一种实施例中，所述绝缘材料包括以下材料中至少一种：
陶瓷、石墨增强纤维塑料、PEEK塑料、POM塑料和PEI树脂。
本申请实施例提供的技术方案带来的有益效果是：
本申请实施例提供的定位头架，头钉通过套筒与绝缘立杆的头钉连接部连接，其中，头钉连接部由绝缘材料制成，套筒由金属材料制成。一方面，由绝缘材料制成的头钉连接部具有良好的绝缘性，可以断开定位头架形成的闭合回路，防止灼烧患者；另一方面，由金属材料制成的套筒具有良好的刚性，即使与头钉频繁安装、调整或拆卸，也不容易发生磨损，经久耐用，确保了头钉的稳固连接。
本申请实施例的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本申请实施例而了解。本申请实施例的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例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申请的一些实施例，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是本申请实施例提供的定位头架的结构示意图；
图2是本申请实施例提供的定位头架中一组套筒、绝缘立杆、头钉的爆炸图；
图3是本申请实施例提供的套筒、绝缘立杆、头钉组合时的俯视图；
图4是图3沿B-B的剖面图；
图5是本申请实施例提供的套筒在不同方向的结构示意图。
附图标记分别表示：
1-套筒，11-紧固盲孔，12-第二套筒，13-第二套筒；2-绝缘立杆，21-头钉连接部，211-连接通孔，22-基环连接部，221-腰型孔，3-头钉，4-基环，5-调节螺栓，6-调节块，7-紧固销。
具体实施方式
除非另有定义，本申请实施例所用的所有技术术语均具有与本领域技术人员通常理解的相同的含义。下面将结合附图对本申请实施方式作进一步地描述。
相关技术中，头钉通过绝缘套筒与立杆连接，而绝缘套筒由绝缘材料制成，其刚性较差，在与头钉频繁安装、调整或拆除的情况下，容易发生磨损，导致头钉与立杆连接不牢固。为此，本申请实施例提供了一种定位头架，可以解决相关技术中绝缘套筒容易磨损导致头钉固定不牢固的问题。
图1是本申请实施例提供的定位头架的结构示意图，图2是本申请实施例提供的定位头架中一组套筒、绝缘立杆和头钉的爆炸图。
如图1和图2所示，定位头架包括：多组套筒1、绝缘立杆2和头钉3。对于每一组套筒1、绝缘立杆2和头钉3，套筒1由金属材料制成，绝缘立杆2包括由绝缘材料制成的头钉连接部21，头钉3通过套筒1与头钉连接部21连接。
综上所述，本申请实施例提供的定位头架，头钉可以通过套筒与绝缘立杆中头钉连接部连接。其中，头钉连接部由绝缘材料制成，其绝缘性良好，而套筒由金属材料制成，其刚性良好，不易磨损。与相关技术相比，头钉不再通过 绝缘套筒与立杆连接，而通过金属材料制成的套筒与由绝缘材料制成的头钉连接部连接。一方面，头钉连接部由绝缘材料制成，可以有效的断开定位头架形成的闭合回路，防止灼伤患者；另一方面，套筒由金属材料制成，其刚性好，即使与头钉频繁的安装、调整或拆卸，也不容易发生磨损，头钉与绝缘立杆仍可以保持稳固连接。
这里需要说明的是，上述绝缘立杆2中的头钉连接部21由绝缘材料制成，而绝缘立杆2中的其他部分可以由绝缘材料制成，也可以由非绝缘材料制成，例如刚性较好的金属材料制成，当然，也可以其中一部分由绝缘材料制成，其中一部分由非绝缘材料制成，例如刚性较好的金属材料制成。
可选的，上述提及的金属材料可以为非铁磁性的金属材料。示例性的，非铁磁性的金属材料包括铜、铜合金、钛合金、铝合金和镁合金中的一种或多种。
可选的，上述提及的绝缘材料可以为陶瓷、石墨增强纤维塑料、聚醚醚酮(polyetheretherketone，PEEK)塑料，聚甲醛(polyformaldehyde，POM)塑料、聚醚酰亚胺(polyetherimide，PEI)树脂中的一种或多种。当然，上述绝缘材料还可以为上述列举材料与其他材料的混合物，例如陶瓷、石墨增强纤维塑料、PEEK塑料，POM塑料或PEI树脂与其他材料的混合物。
这里还需要说明的是，套筒1、绝缘立杆2和头钉3可以为图1所示的四组，当然，也可以为两组、三组或五组等。
在一种实施例中，如图1所示，定位头架还可以包括：基环4，四个绝缘立杆2均与基环4连接。
可选的，结合如图2所示，绝缘立杆2还可以包括：与头钉连接部21连接的基环连接部22，该基环连接部22还与基环4连接。
基环连接部22具有腰型孔221，可与调节螺栓5和调节块6相互配合，调节绝缘立杆2的高度。其中，调节螺栓5穿过基环4与位于腰型孔221内的调节块6连接。当需要调节绝缘立杆的高度时，拧松调节螺栓，调整绝缘立杆的高度到期望高度，再拧紧调节螺栓即完成调节过程。
这里，基环连接部22可以由金属材料制成，而金属材料具有良好的刚性，相比基环连接部22由绝缘材料制成，绝缘立杆2整体的刚性较好，与基环4 的连接更为稳固。
这里需要说明的是，定位头架的绝缘立杆2不限于包括头钉连接部21和基环连接部22两个部分，还可以包含其他中间连接部，本申请实施例对此不作限定。
可选的，如图2所示，绝缘立杆2的头钉连接部21包括：连接通孔211，套筒1可以固定于连接通孔211内，头钉3可以与套筒1连接。这样，头钉不直接与绝缘立杆的头钉连接部连接，而是通过套筒间接与绝缘立杆连接，由于金属材料制成的套筒刚性好，即使与头钉频繁的安装、调整或拆卸，也不容易发生磨损，头钉与绝缘立杆仍可以保持稳固连接。
对于套筒与连接通孔的固定方式，作为一种可选的实现方式，如图2至图4所示，头钉连接部21还包括：紧固通孔212，该紧固通孔212与连接通孔211相交；定位头架还包括：紧固销7，紧固销7穿过紧固通孔212与套筒1相抵。这样，可以使套筒与连接通孔固定连接，在调节头钉位置时，套筒不易随头钉位置的调节而移动。
可选的，如图2和图4，套筒1包括：紧固盲孔11，设置于套筒1与紧固通孔212相对的位置，紧固销7可以穿过紧固通孔212后与紧固盲孔11相适配。这样，在调节套筒中头钉的位置时，由于紧固销穿头钉连接部的紧固通孔并与套筒上的紧固盲孔相适配，至少可以阻挡套筒随头钉位置的调节在连接通孔的中心轴方向上移动。
这里需要说明的是，当套筒1、绝缘立杆2和头钉3组合在一起时，绝缘立杆2的头钉连接部21的连接通孔211的中心轴与套筒1的中心轴、头钉3的中心轴同轴。
为了便于对头钉位置的粗调或微调，头钉3可以与套筒1通过螺纹连接，也就是说，在套筒1的内壁上设置内螺纹段，在头钉3外壁设置外螺纹段，并且内、外螺纹啮合，由此可通过旋动头钉3沿螺纹运动来调节头钉3的位置。在旋动头钉时，由于紧固销穿头钉连接部的紧固通孔并与套筒上的紧固盲孔相适配，还可以阻挡套筒随头钉的旋动绕连接通孔的中心轴转动。
为了进一步阻挡绝缘套筒随头钉的旋动绕连接通孔的中心轴转动，套筒1沿垂直于自身中心轴方向的至少一个截面的外轮廓可以设置为非圆形。
示例性的，如图5所示，套筒1包括第一套筒12和第二套筒13，整体呈内部中空的凸台状，第二套筒13的台面小于第二套筒12的台面，其中空用以与头钉连接。第一套筒12沿垂直于中心轴方向的截面的外轮廓呈腰型，可以避免套筒随头钉的旋动绕连接通孔的中心轴(或套筒的中心轴、或套筒中中空的中心轴)转动；内轮廓呈圆形，用于头钉穿过；而第二套筒13沿垂直于中心轴方向的截面的外轮廓形状不限，可以为图5所示的圆形，也可设置为其他形状，内轮廓呈圆形，用于头钉穿过。
当然，第一套筒12沿垂直于自身中心轴方向的截面的外轮廓还可以为其他规则或不规则的形状，例如椭圆形、正方形、长方形、五边形、六边形、等腰梯形或直接梯形等等。
作为另一些可选的实现方式，套筒还可以通过卡扣、卡箍等固定方式与连接通孔连接。当通过卡扣连接方式固定时，可在套筒1上设置至少一个弹性卡子，在连接通孔211内设置有与弹性卡子相适配的卡槽。当通过卡箍方式固定时，可在连接通孔211内卡箍，通过利用卡箍抱紧套筒1。
本领域技术人员可以理解的是，上述仅列举了套筒与连接通孔的部分固定方式，而非全部，对于其他固定方式，本申请实施例不再一一列举。
以上仅为本申请的说明性示例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种定位头架，其特征在于，所述定位头架包括：
    套筒，由金属材料制成；
    绝缘立杆，包括头钉连接部，所述头钉连接部由绝缘材料制成；
    头钉，通过所述套筒与所述头钉连接部连接。
  2. 根据权利要求1所述的定位头架，其特征在于，所述头钉连接部包括：连接通孔，所述套筒固定于所述连接通孔内，所述头钉与所述套筒连接。
  3. 根据权利要求2所述的定位头架，其特征在于，所述头钉连接部还包括：紧固通孔，所述紧固通孔与所述连接通孔相交；所述定位头架还包括：紧固销，所述紧固销穿过所述紧固通孔与所述套筒相抵。
  4. 根据权利要求3所述的定位头架，其特征在于，所述套筒包括：紧固盲孔，所述紧固销穿过所述紧固通孔后与所述紧固盲孔相适配。
  5. 根据权利要求1所述的定位头架，其特征在于，所述套筒沿垂直于中心轴方向至少一个截面的外轮廓为非圆形。
  6. 根据权利要求1所述的定位头架，其特征在于，所述定位头架还包括：基环；所述绝缘立杆还包括：与所述头钉连接部连接的基环连接部，所述基环连接部与所述基环连接。
  7. 根据权利要求6所述的定位头架，其特征在于，所述基环连接部由金属材料制成。
  8. 根据权利要求1所述的定位头架，其特征在于，所述金属材料为非铁磁性的金属材料。
  9. 根据权利要求8所述的定位头架，其特征在于，所述非铁磁性的金属材料包括以下材料中的至少一种：
    铜、铜合金、钛合金、铝合金和镁合金。
  10. 根据权利要求1所述的定位头架，其特征在于，所述绝缘材料包括以下材料中至少一种：
    陶瓷、石墨增强纤维塑料、PEEK塑料、POM塑料和PEI树脂。
PCT/CN2020/099200 2019-04-18 2020-06-30 定位头架 WO2021012901A1 (zh)

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Publication number Priority date Publication date Assignee Title
US4612930A (en) * 1985-03-19 1986-09-23 Bremer Paul W Head fixation apparatus including crown and skull pin
CN2759508Y (zh) * 2004-12-16 2006-02-22 陈群 伽玛刀治疗定位头架
CN203122502U (zh) * 2013-03-04 2013-08-14 普瑞斯星（常州）医疗器械有限公司 吻合器调节螺母总成
CN106621074A (zh) * 2016-11-08 2017-05-10 武汉瑞祥安精密制造有限责任公司 一种绝缘绝热伽马刀立体定位框架头钉
CN207306995U (zh) * 2017-02-15 2018-05-04 武汉数码刀医疗有限公司 一种定位头钉及定位装置
WO2019075607A1 (zh) * 2017-10-16 2019-04-25 深圳市奥沃医学新技术发展有限公司 一种伽玛刀定位头架

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612930A (en) * 1985-03-19 1986-09-23 Bremer Paul W Head fixation apparatus including crown and skull pin
CN2759508Y (zh) * 2004-12-16 2006-02-22 陈群 伽玛刀治疗定位头架
CN203122502U (zh) * 2013-03-04 2013-08-14 普瑞斯星（常州）医疗器械有限公司 吻合器调节螺母总成
CN106621074A (zh) * 2016-11-08 2017-05-10 武汉瑞祥安精密制造有限责任公司 一种绝缘绝热伽马刀立体定位框架头钉
CN207306995U (zh) * 2017-02-15 2018-05-04 武汉数码刀医疗有限公司 一种定位头钉及定位装置
WO2019075607A1 (zh) * 2017-10-16 2019-04-25 深圳市奥沃医学新技术发展有限公司 一种伽玛刀定位头架

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