WO2021103443A1 - 一种髋臼杯 - Google Patents

一种髋臼杯 Download PDF

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Publication number
WO2021103443A1
WO2021103443A1 PCT/CN2020/091773 CN2020091773W WO2021103443A1 WO 2021103443 A1 WO2021103443 A1 WO 2021103443A1 CN 2020091773 W CN2020091773 W CN 2020091773W WO 2021103443 A1 WO2021103443 A1 WO 2021103443A1
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Prior art keywords
acetabular cup
cover
hole
main structure
cavity
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PCT/CN2020/091773
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English (en)
French (fr)
Inventor
张春雨
高志威
季方秋
陈贤帅
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佛山市逸合生物科技有限公司
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Publication of WO2021103443A1 publication Critical patent/WO2021103443A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
    • A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
    • A61F2002/30024—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in coefficient of friction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30818—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves castellated or crenellated

Definitions

  • the invention relates to the technical field of medical devices, in particular to an acetabular cup.
  • Hip replacement surgery has become a reliable treatment method after many years of clinical practice.
  • total hip replacement requires the use of an acetabular cup and femoral stem to meet the patient's joint mobility requirements.
  • the joint matching method is to imitate the natural hip joint, that is, the acetabular cup and the sphere on the femoral stem move through sliding. Due to the existence of sliding friction during the sliding process, the contact surface of the cup and the ball is easily damaged, which affects the service life of the joint. At the same time, long-term sliding friction will cause the surface of the cup and the ball to fall off and produce debris. These debris can easily cause inflammation in the human body and cause the implanted joints to loosen. In addition, because the stability of the combination of the acetabular cup and the femur is not high, dislocation accidents are prone to occur due to loosening, and collision damage and abnormal noise are prone to occur.
  • the acetabular cup and the sphere use wear-resistant materials to increase the service life of the joint, which is costly and complex to process.
  • the present invention aims to solve at least one of the technical problems existing in the prior art.
  • the present invention proposes an acetabular cup.
  • the joints are moved in the form of rolling by designing rolling bearings in the acetabular cup, thereby turning sliding friction into rolling friction, greatly reducing frictional resistance, and increasing joints. Service life.
  • the acetabular cup of the present invention can be tightly connected with the femoral stem, which ensures the stability of the hip joint during exercise, thereby reducing the occurrence of dislocation accidents.
  • a main structure, the top surface of the main structure is provided with a cavity with an upward opening, and a plurality of balls are provided on the inner wall of the main structure;
  • a movable sphere, the movable sphere is arranged in the cavity
  • the cover is detachably connected to the top surface of the cavity, the cover is provided with a through hole at a position corresponding to the cavity, wherein the movable sphere leaks out of the through hole
  • a connecting hole is provided on a part of the movable sphere body that leaks out of the cover body.
  • the acetabular cup designed with a combined structure combines the main structure, cover, and movable sphere. After being applied to hip replacement surgery, the movable sphere and ball in the acetabular cup roll and interact with the main structure and cover. Under the cooperative work of the joints, the joints are moved. Because the process is rolling friction, the friction generated is greatly reduced compared with the sliding friction, thereby increasing the service life of the joints.
  • the distance d from the outer wall of the movable sphere to the inner wall of the cavity and the radius r of the ball satisfies:
  • the balls are evenly distributed and closely arranged, and are a single layer, avoiding stacking.
  • the main structure is hemispherical, a boss is provided around the opening of the cavity, and an external thread is provided on the outer side of the boss.
  • the bottom surface of the cover is provided with a groove
  • the top surface of the groove is provided with a through hole along the vertical direction
  • the inner side wall of the groove is provided with an internal thread, the The internal thread is matched with the external thread.
  • the outer wall of the main structure is a rough wall surface, so that the acetabular cup is easily attached to the bone.
  • the inner wall of the main structure is a smooth wall surface, which facilitates the rolling of the balls and reduces friction.
  • a mounting block is provided on the outer side of the cover body, and a mounting hole is provided on the mounting block for mounting and retaining the acetabular cup in the acetabular socket.
  • the through hole is circular, and there are more contact points between the circular through hole and the movable sphere, so that when the movable sphere leaks from the through hole out of the cover, it is in contact with the through hole.
  • the connection of the through hole is more stable, and the upper and lower edges of the through hole are provided with chamfers, which can reduce the friction between the movable sphere and the through hole when rolling.
  • the outer surface of the movable sphere is a smooth wall surface, which further reduces the friction between the movable sphere and the ball when rolling.
  • the inner wall of the connecting hole is provided with an internal gear, which is adapted to the external gear of the femoral stem in the hip replacement surgery for retention, which can make the acetabular cup and the femoral stem tightly connected, It ensures the stability of the hip joint during exercise, thereby reducing the occurrence of dislocation accidents.
  • Fig. 1 is a schematic structural diagram of a main structure of an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of the cover according to the embodiment of the present invention.
  • Figure 3 is a front view of a movable sphere according to an embodiment of the present invention.
  • Figure 4 is a top view of a movable sphere according to an embodiment of the present invention.
  • Figure 5 is a schematic cross-sectional structure diagram of the acetabular cup after assembly of the embodiment of the present invention.
  • Main structure 100 boss 110, ball 120,
  • the acetabular cup includes a main structure 100, a cover 200, and a movable sphere 300.
  • the top surface of the main structure 100 is provided with a cavity with an upward opening, and its inner wall is provided with a plurality of balls 120; the movable ball 300 is provided in the cavity; the cover 200 is detachably connected to the top surface of the cavity, and the cover 200 corresponds to the cavity.
  • the position of the body is provided with a through hole 210, wherein the movable sphere 300 leaks out of the cover 200 from the through hole 210, and the part where the movable sphere 300 leaks out of the cover 200 is provided with a connecting hole 310.
  • the acetabular cup designed with a combined structure combines the main structure 100, the cover 200 and the movable sphere 300. After being applied to the hip replacement surgery, the movable sphere 300 and the ball 120 in the acetabular cup roll and interact with each other. The main structure 100 and the cover 200 work together to make the joint move. Because the process is rolling friction, the generated friction is greatly reduced compared to sliding friction, thereby increasing the service life of the joint.
  • the distance d from the outer wall of the movable sphere 300 to the inner wall of the cavity and the radius r of the ball 120 satisfies:
  • the balls 120 are evenly distributed and closely arranged, and are a single layer without stacking.
  • the main structure 100 is hemispherical, a boss 110 is provided around the opening of the cavity, and an external thread is provided on the outer side of the boss 110.
  • the bottom surface of the cover 200 is provided with a groove
  • the top surface of the groove is provided with a through hole 210 along the vertical direction
  • the inner side wall of the groove is provided with internal threads, internal threads and external threads. Match.
  • the outer wall of the main structure 100 is a rough wall surface, so that the acetabular cup is easily attached to the bone.
  • the inner wall of the main structure 100 is a smooth wall surface, which facilitates the rolling of the balls 120 and reduces friction.
  • a mounting block 220 is provided on the outer side of the cover body 200, and a mounting hole 221 is provided on the mounting block 220 for mounting and retaining the acetabular cup in the acetabular socket.
  • the through hole 210 is circular, and the circular through hole 210 has more contact points with the movable sphere 300, so that the movable sphere 300 leaks from the through hole 210 when the cover 200 is contacted with the through hole 210.
  • the connection therebetween is more stable, and the upper and lower edges of the through hole 210 are both chamfered, which can reduce the friction between the movable ball 300 and the through hole 210 when rolling.
  • the outer surface of the movable sphere 300 is a smooth wall surface, which further reduces the friction between the movable sphere 300 and the ball 120 when rolling.
  • the inner wall of the connecting hole 310 is provided with an internal gear 311, which is adapted to the external gear of the femoral stem in hip replacement surgery for retention, which can make the acetabular cup and the femoral stem tightly connected , To ensure the stability of the hip joint during exercise, thereby reducing the occurrence of dislocation accidents.
  • the acetabular cup includes a main structure 100, a cover 200, and a movable sphere 300.
  • the main structure 100 is a hemisphere with an upward opening and a cavity inside.
  • the opening of the hemisphere is surrounded by a boss 110.
  • the outer side of the boss 110 is provided with an external thread.
  • the inner wall of the hemisphere is provided with a plurality of balls 120.
  • the balls 120 Evenly distributed and tightly arranged, it is a single layer to avoid stacking;
  • the bottom surface of the cover 200 is provided with a groove, the top surface of the groove is provided with a through hole 210 along the vertical direction, and the inner side wall of the groove is provided with internal threads.
  • the thread is compatible with the external thread; the movable sphere 300 is placed in the cavity of the hemisphere, and the cover 200 is provided with a through hole 210 at a position corresponding to the cavity of the hemisphere, wherein the movable sphere 300 leaks out of the cover from the through hole 210 200.
  • a connecting hole 310 is provided on the part of the movable sphere 300 that leaks out of the cover 200.
  • the outer side of the cover 200 is evenly provided with four mounting blocks 220, and the mounting blocks 220 are provided with mounting holes 221.
  • the main structure 100 is first placed with the opening upward, and the balls 120 are placed and evenly distributed on the inner wall of the main structure 100.
  • a single layer is sufficient, avoiding stacking, and moving
  • the ball 300 has the connecting hole 310 upwards and is placed on the balls 120 evenly distributed on the inner wall of the main structure 100, and then the balls 120 are evenly placed along the inner wall of the main structure 100, evenly distributed, to avoid stacking until it does not exceed the main structure
  • the operation can be arranged.
  • the movable sphere 300 and the ball 120 roll, and cooperate with the main structure 100 and the cover 200 to make the joint move. Because the process is rolling friction, the friction force generated is greatly reduced compared with sliding friction. Increase the service life of joints.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

一种髋臼杯，包括主体结构（100）、盖体（200）和活动球体（300）。主体结构（100）的顶面设有开口向上的腔体，其内壁设有多个滚珠（120）。活动球体（300）设在腔体内。盖体（200）与腔体的顶面可拆卸连接，盖体（200）上对应腔体的位置设有通孔（210）。活动球体（300）从通孔（210）外漏出盖体（200），活动球体（300）外漏出盖体（200）的部分上设置有连接孔（310）。该髋臼杯采用组合式结构设计，将主体结构（100）、盖体（200）及活动球体（300）进行组合，在应用于髋关节置换手术后，髋臼杯中的活动球体（300）与滚珠（120）发生滚动，并在主体结构（100）及盖体（200）的协同工作下，使得关节活动，由于该过程为滚动摩擦，所产生的摩擦力较滑动摩擦有所减小，从而增加了关节的使用寿命。

Description

一种髋臼杯 技术领域
本发明涉及医疗器械技术领域，特别涉及一种髋臼杯。
背景技术
髋关节置换术经过多年的临床实践已经成为可靠的治疗手段。其中，全髋关节置换术需要髋臼杯与股骨柄配合使用，以此来满足患者关节的活动要求。在现有技术中关节的配合方式均是模仿自然髋关节，即臼杯与股骨柄上的球体通过滑动进行活动。由于滑动过程中滑动摩擦的存在，臼杯与球体接触的面极易发生损坏，从而影响关节的使用寿命，同时，长时间的滑动摩擦会造成臼杯与球体表面发生材质脱落并产生碎屑，这些碎屑极易造成人体炎症从而导致植入的关节发生松动。此外，由于髋臼杯与股骨结合的稳定性不高，容易因松动而发生脱臼事故，且容易产生碰撞损伤与异响。
目前髋臼杯与球体通过采用耐磨性材料来提高关节的使用寿命，其成本较高且加工复杂。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种髋臼杯，通过在髋臼杯内设计滚动轴承的方式来使关节以滚动的形式进行活动，从而将滑动摩擦变成滚动摩擦，大大减少了摩擦阻力，进而增加关节的使用寿命。同时，本发明的髋臼杯能够与股骨柄紧密连接，保证了髋关节在运动过程中的稳定性，从而减少了脱臼事故的发生。
根据本发明的实施例的髋臼杯，包括：
主体结构，所述主体结构的顶面设有开口向上的腔体，其内壁设有多个滚珠；
活动球体，所述活动球体设在所述腔体内；
盖体，所述盖体与所述腔体的顶面可拆卸连接，所述盖体上对应所述腔体的位置设有通孔，其中，所述活动球体从所述通孔外漏出所述盖体，所述活动球体外漏出所述盖体的部分上设置有连接孔。
根据本发明实施例的髋臼杯，至少具有如下有益效果：
采用组合式结构设计的髋臼杯，将主体结构、盖体及活动球体进行组合，在应用于髋关节置换手术后，髋臼杯中的活动球体与滚珠发生滚动，并与主体结构及盖体的协同工作下，使得关节活动，由于该过程中为滚动摩擦，所产生的摩擦力较滑动摩擦大大减小，从而增加了关节的使用寿命。
根据本发明的一些实施例，所述活动球体的外壁到所述腔体内壁的距离d与滚珠的半径r之间满足：
Figure PCTCN2020091773-appb-000001
所述滚珠均匀分布且紧密排列，为单层，避免堆叠。
根据本发明的一些实施例，所述主体结构为半球形，所述腔体的开口环绕设置有凸台，所述凸台的外侧面设有外螺纹。
根据本发明的一些实施例，所述盖体的底面设置有凹槽，所述凹槽的顶面沿竖直方向设置有通孔，所述凹槽的内侧壁上设置有内螺纹，所述内螺纹与所述外螺纹相适配。
根据本发明的一些实施例，所述主体结构的外壁为粗糙壁面，使得髋臼杯便于附着在骨质上。
根据本发明的一些实施例，所述主体结构的内壁为光滑壁面，便于滚珠进行滚动，减少摩擦。
根据本发明的一些实施例，所述盖体的外侧设有安装块，所述安装块上设有安装孔，用于髋臼杯在髋臼窝中的安装固位。
根据本发明的一些实施例，所述通孔为圆形，圆形的通孔与活动球体的接触点更多，使得活动球体从所述通孔外漏出所述盖体时与通孔之间的连接更稳固，所述通孔的上边缘和下边缘均设有倒角，可减少活动球体在滚动时与通孔产生的摩擦。
根据本发明的一些实施例，所述活动球体的外表面为光滑壁面，进一步减少活动球体与滚珠发生滚动时的摩擦。
根据本发明的一些实施例，所述连接孔的内壁设有内齿轮，与髋关节置换手术中股骨柄的外齿轮相适配，用于固位，可使得髋臼杯与股骨柄紧密连接，保证了髋关节在运动过程中的稳定性，从而减少了脱臼事故的发生。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明实施例的主体结构的结构示意图；
图2为本发明实施例的盖体的结构示意图；
图3为本发明实施例的活动球体的正视图；
图4为本发明实施例的活动球体的俯视图
图5是本发明实施例装配完成后的髋臼杯的剖面结构示意图；
主体结构100、凸台110、滚珠120、
盖体200、通孔210、安装块220、安装孔221、
活动球体300、连接孔310、内齿轮311。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的 方位构造和操作，因此不能理解为对本发明的限制。
本发明的描述中，除非另有明确的限定，设有、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
下面参考图1、图2、图3、图4和图5描述根据本发明实施例的髋臼杯。
如图1-图5所示，根据本发明实施例的髋臼杯，包括主体结构100、盖体200和活动球体300。主体结构100的顶面设有开口向上的腔体，其内壁设有多个滚珠120；活动球体300设在腔体内；盖体200与腔体的顶面可拆卸连接，盖体200上对应腔体的位置设有通孔210，其中，活动球体300从通孔210外漏出盖体200，活动球体300外漏出盖体200的部分设有连接孔310。采用组合式结构设计的髋臼杯，将主体结构100、盖体200及活动球体300进行组合，在应用于髋关节置换手术后，髋臼杯中的活动球体300与滚珠120发生滚动，并与主体结构100及盖体200的协同工作下，使得关节活动，由于该过程中为滚动摩擦，所产生的摩擦力较滑动摩擦大大减小，从而增加了关节的使用寿命。
在本发明的一些实施例中，活动球体300的外壁到腔体内壁的距离d与滚珠120的半径r之间满足：
Figure PCTCN2020091773-appb-000002
滚珠120均匀分布且紧密排列，为单层，无堆叠。
在本发明的一些实施例中，主体结构100为半球形，腔体的开口环绕设置有凸台110，凸台110的外侧面设有外螺纹。
在本发明的一些实施例中，盖体200的底面设置有凹槽，凹槽的顶面沿竖直方向设置有通孔210，凹槽的内侧壁上设置有内螺纹，内螺纹与外螺纹相适配。
在本发明的一些实施例中，主体结构100的外壁为粗糙壁面，使得髋臼杯便于附着在骨质上。
在本发明的一些实施例中，主体结构100的内壁为光滑壁面，便于滚珠120进行滚动，减少摩擦。
在本发明的一些实施例中，盖体200的外侧设有安装块220，安装块220上 设有安装孔221，用于髋臼杯在髋臼窝中的安装固位。
在本发明的一些实施例中，通孔210为圆形，圆形的通孔210与活动球体300的接触点更多，使得活动球体300从通孔210外漏出盖体200时与通孔210之间的连接更稳固，通孔210的上边缘和下边缘均设有倒角，可减少活动球体300在滚动时与通孔210产生的摩擦。
在本发明的一些实施例中，活动球体300的外表面为光滑壁面，进一步减少活动球体300与滚珠120发生滚动时的摩擦。
在本发明的一些实施例中，连接孔310的内壁设有内齿轮311，与髋关节置换手术中股骨柄的外齿轮相适配，用于固位，可使得髋臼杯与股骨柄紧密连接，保证了髋关节在运动过程中的稳定性，从而减少了脱臼事故的发生。
根据本发明实施例的髋臼杯的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
下面参考图1-图5，以一个具体的实施例详细描述根据本发明实施例的髋臼杯。值得理解的是，下述描述仅是示例性说明，而不是对发明的具体限制。
如图1-图5所示，髋臼杯包括主体结构100、盖体200和活动球体300。主体结构100为开口向上的半球体，内有空腔，半球体的开口环绕设置有凸台110，凸台110的外侧面设有外螺纹，半球体的内壁放置有多个滚珠120，滚珠120均匀分布且紧密排列，为单层，避免堆叠；盖体200的底面设置有凹槽，凹槽的顶面沿竖直方向设置有通孔210，凹槽的内侧壁上设置有内螺纹，内螺纹与外螺纹相适配；活动球体300置于半球体的空腔内，盖体200上对应半球体空腔的位置设有通孔210，其中，活动球体300从通孔210外漏出盖体200，活动球体300外漏出盖体200的部分上设置有连接孔310。
盖体200的外侧均匀设有4个安装块220，安装块220上设有安装孔221。
具体地，当将该髋臼杯应用于髋关节置换手术时，首先将主体结构100开口向上放置，放入滚珠120并均匀分布在主体结构100的内壁，单层即可，避免堆叠，取活动球体300，连接孔310向上，并置于均匀分布在主体结构100内壁的 滚珠120上，再继续沿着主体结构100内壁的四周均匀放入滚珠120，均匀分布，避免堆叠，直至不超过主体结构100的外边缘即可，最后取盖体200，开口向下，将螺纹槽的内螺纹对准主体结构100中凸台110的外螺纹，同时保证连接孔310在活动球体300外漏出盖体200的部分上，再旋转盖体200，将其固位，完成组装。组装完成即可安排进行手术，首先打开患者的软组织露出患者的髋臼窝，通过髋臼锉在患者髋臼窝制造出安装位置，将本发明的主体结构100放入其中，保证主体结构100的外壁与髋臼窝紧密接触，调节安装块220的位置，使用固位钉穿过安装孔221将本发明的髋臼杯固位住。如此，活动球体300与滚珠120发生滚动，并与主体结构100及盖体200的协同工作下，使得关节活动，由于该过程中为滚动摩擦，所产生的摩擦力较滑动摩擦大大减小，从而增加了关节的使用寿命。
在本说明书的描述中，参考术语“一些实施例”或“示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种髋臼杯，其特征在于，包括：
    主体结构，所述主体结构的顶面设有开口向上的腔体，其内壁设有多个滚珠；
    活动球体，所述活动球体设在所述腔体内；
    盖体，所述盖体与所述腔体的顶面可拆卸连接，所述盖体上对应所述腔体的位置设有通孔，其中，所述活动球体从所述通孔外漏出所述盖体，所述活动球体外漏出所述盖体的部分上设置有连接孔。
  2. 根据权利要求1所述的髋臼杯，其特征在于，所述活动球体的外壁到所述腔体内壁的距离d与滚珠的半径r之间满足：
    Figure PCTCN2020091773-appb-100001
  3. 根据权利要求1所述的髋臼杯，其特征在于，所述主体结构为半球形，所述腔体的开口环绕设置有凸台，所述凸台的外侧面设有外螺纹。
  4. 根据权利要求3所述的髋臼杯，其特征在于，所述盖体的底面设置有凹槽，所述凹槽的顶面沿竖直方向设置有通孔，所述凹槽的内侧壁上设置有内螺纹，所述内螺纹与所述外螺纹相适配。
  5. 根据权利要求1所述的髋臼杯，其特征在于，所述主体结构的外壁为粗糙壁面。
  6. 根据权利要求1所述的髋臼杯，其特征在于，所述主体结构的内壁为光滑壁面。
  7. 根据权利要求1所述的髋臼杯，其特征在于，所述盖体的外侧设有安装块，所述安装块上设有安装孔。
  8. 根据权利要求1所述的髋臼杯，其特征在于，所述通孔为圆形，所述通孔的上边缘和下边缘均设有倒角。
  9. 根据权利要求1所述的髋臼杯，其特征在于，所述活动球体的外表面为光滑壁面。
  10. 根据权利要求1所述的髋臼杯，其特征在于，所述连接孔的内壁设有内齿轮。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092898A (en) * 1988-05-31 1992-03-03 Ngk Spark Plug Co., Ltd. Artificial joint
RU2207084C1 (ru) * 2001-12-10 2003-06-27 Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" Эндопротез тазобедренного сустава
US20060271200A1 (en) * 2005-05-27 2006-11-30 Greenlee Wilfred E Hip Prosthesis and the Use Thereof
CN103892941A (zh) * 2012-12-26 2014-07-02 北京爱康宜诚医疗器材股份有限公司 滚动型双极头
EP2801339A1 (en) * 2013-05-09 2014-11-12 Jose Florian Argüez Improved hip replacement
CN104783932A (zh) * 2015-05-08 2015-07-22 北京爱康宜诚医疗器材股份有限公司 髋臼假体
CN110876653A (zh) * 2019-11-28 2020-03-13 佛山市逸合生物科技有限公司 一种髋臼杯

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5092898A (en) * 1988-05-31 1992-03-03 Ngk Spark Plug Co., Ltd. Artificial joint
RU2207084C1 (ru) * 2001-12-10 2003-06-27 Научно-исследовательский центр Татарстана "Восстановительная травматология и ортопедия" Эндопротез тазобедренного сустава
US20060271200A1 (en) * 2005-05-27 2006-11-30 Greenlee Wilfred E Hip Prosthesis and the Use Thereof
CN103892941A (zh) * 2012-12-26 2014-07-02 北京爱康宜诚医疗器材股份有限公司 滚动型双极头
EP2801339A1 (en) * 2013-05-09 2014-11-12 Jose Florian Argüez Improved hip replacement
CN104783932A (zh) * 2015-05-08 2015-07-22 北京爱康宜诚医疗器材股份有限公司 髋臼假体
CN110876653A (zh) * 2019-11-28 2020-03-13 佛山市逸合生物科技有限公司 一种髋臼杯

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