技术领域Technical field
本发明涉及医疗器械技术领域，尤其涉及一种关节面修复假体。The present invention relates to the technical field of medical devices, and in particular to an articular surface repair prosthesis.
背景技术Background technique
全关节置换术（total joint arthroplasty，TJA）是近50年最伟大的外科手术之一，可有效的治疗关节疾病，消除患者疼痛，矫正关节畸形，恢复患者活动功能，但这种治疗手段主要适用于中重度关节疾病患者。然而在临床上，有些患者病情的病况未达到进行TJA术的损伤程度，但也给患者带来严重疼痛，极大降低患者的生活质量。Total joint arthroplasty (TJA) is one of the greatest surgical operations in the past 50 years. It can effectively treat joint diseases, eliminate patients' pain, correct joint deformities, and restore patients' mobility. However, this treatment method is mainly suitable for For patients with moderate to severe joint diseases. However, clinically, some patients' conditions do not reach the level of damage required for TJA surgery, but they also cause severe pain to the patients and greatly reduce the patient's quality of life.
相关技术中，一般采用TJA术的过度治疗形式解决轻度关节疾病患者关节疼痛的问题，将翻修TJA术的时间点提前。若采用TJA术，手术创伤大，需要将受损的骨头整个更换，骨量丢失多，造成过度治疗，这样不仅增加患者痛苦，也提高治疗费用，对社会产生较大的经济负担和社会负担。In related technologies, over-treatment of TJA is generally used to solve the problem of joint pain in patients with mild joint diseases and advance the time of revision TJA. If TJA is used, the surgical trauma is large and the entire damaged bone needs to be replaced, resulting in large bone loss and excessive treatment. This not only increases the patient's pain, but also increases the cost of treatment and creates a greater economic and social burden on society.
发明内容Contents of the invention
本发明旨在至少解决相关技术中存在的技术问题之一。为此，本发明提供一种关节面修复假体，主要针对关节副损伤单侧、局灶病变或病变的轻症患者，手术治疗时可针对地去除病灶，在修复关节面、消除患者疼痛的同时，极大保留骨量，避免对关节副对侧进行过度治疗，是一种保留关节型的产品和手术技术，减少适用患者痛苦，降低治疗费用。The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention provides an articular surface repair prosthesis, which is mainly aimed at patients with unilateral joint damage, focal lesions or mild disease. During surgical treatment, the lesions can be removed specifically, repairing the joint surface and eliminating the patient's pain. At the same time, it greatly preserves bone mass and avoids over-treatment of the contralateral side of the joint. It is a joint-preserving product and surgical technique that reduces the pain of applicable patients and reduces treatment costs.
根据本发明实施例的关节面修复假体，包括：实体部和骨接触层，实体部一侧设置有与目标关节适配的关节接触面；骨接触层位于实体部的另一侧，用于连接目标骨结构，包括设置在实体部外侧的多孔接触层，多孔接触层与实体部之间形成第一空腔，多孔接触层设置有连通孔，第一空腔通过连通孔与外部连通。An articular surface repair prosthesis according to an embodiment of the present invention includes: a solid part and a bone contact layer. One side of the solid part is provided with a joint contact surface adapted to the target joint; the bone contact layer is located on the other side of the solid part for Connecting the target bone structure includes a porous contact layer disposed outside the solid part, a first cavity is formed between the porous contact layer and the solid part, the porous contact layer is provided with a communication hole, and the first cavity is connected to the outside through the communication hole.
根据本发明的一个实施例，所述实体部连接有多孔层，所述多孔层与所述多孔接触层之间设置所述第一空腔。According to an embodiment of the present invention, the solid part is connected to a porous layer, and the first cavity is provided between the porous layer and the porous contact layer.
根据本发明的一个实施例，所述连通孔和所述多孔层的孔中的至少一个的孔径在600μm到1000μm之间，孔隙率在50%到80%之间。According to an embodiment of the present invention, at least one of the connecting holes and the pores of the porous layer has a pore diameter between 600 μm and 1000 μm, and a porosity between 50% and 80%.
根据本发明的一个实施例，所述实体部包括接触部和延长柄，所述接触部的一侧设置有所述关节接触面，所述接触部的另一侧设置有连接面并连接所述延长柄。According to an embodiment of the present invention, the solid part includes a contact part and an extended handle. One side of the contact part is provided with the joint contact surface, and the other side of the contact part is provided with a connecting surface and connects the Extended handle.
根据本发明的一个实施例，所述延长柄设置至少两个，所述延长柄的长度不同。According to an embodiment of the present invention, at least two extension handles are provided, and the lengths of the extension handles are different.
根据本发明的一个实施例，所述接触部内部形成有第二空腔。According to an embodiment of the present invention, a second cavity is formed inside the contact portion.
根据本发明的一个实施例，所述连接面设置有通孔，所述连接面的外侧设置所述多孔接触层，所述连通孔与所述通孔连通。According to an embodiment of the present invention, the connection surface is provided with a through hole, the porous contact layer is provided outside the connection surface, and the communication hole is connected with the through hole.
根据本发明的一个实施例，所述关节接触面外凸，所述连接面向远离所述关节接触面的方向外凸。According to an embodiment of the present invention, the joint contact surface is convex, and the connecting surface is convex in a direction away from the joint contact surface.
根据本发明的一个实施例，所述实体部的延长柄与所述骨接触层中的至少一个设置若干个内凹的防旋槽。According to an embodiment of the present invention, at least one of the extended handle of the solid part and the bone contact layer is provided with a plurality of concave anti-rotation grooves.
根据本发明的一个实施例，所述实体部和所述骨接触层之间设置若干个加强柱。According to an embodiment of the present invention, several reinforcing pillars are provided between the solid part and the bone contact layer.
本发明实施例中的上述一个或多个技术方案，至少具有如下技术效果之一：The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:
根据本发明实施例的关节面修复假体，接触层设置连通孔，连通孔为骨长入假体提供条件，人骨可长入接触层，与接触层的多孔结构形成嵌合，提高假体与目标骨结构的结合强度，有助于目标骨结构与假体的融合，提高假体的长期稳定性。其中，通过接触层与实体部之间形成第一空腔，不仅可以减重，降低对关节和周围骨骼的负担，同时，还可以为骨骼提供充分的骨长入空间，提高骨长入稳定性，从而提高假体与目标骨结构的结合的可靠性。According to the articular surface repair prosthesis according to the embodiment of the present invention, the contact layer is provided with connecting holes, which provide conditions for bone to grow into the prosthesis. Human bones can grow into the contact layer and form a fit with the porous structure of the contact layer, thereby improving the connection between the prosthesis and the prosthesis. The bonding strength of the target bone structure helps the fusion of the target bone structure and the prosthesis and improves the long-term stability of the prosthesis. Among them, the first cavity formed between the contact layer and the solid part can not only reduce weight and reduce the burden on the joints and surrounding bones, but also provide sufficient space for bone ingrowth and improve the stability of bone ingrowth. , thereby improving the reliability of the combination of the prosthesis and the target bone structure.
除了上述所描述的本发明解决的技术问题、构成的技术方案的技术特征以及有这些技术特征的技术方案所带来的优点之外，本发明的其他技术特征及这些技术特征带来的优点，将结合附图作出进一步的说明。In addition to the technical problems solved by the present invention, the technical features of the technical solutions and the advantages brought by the technical solutions having these technical features described above, other technical features of the present invention and the advantages brought by these technical features, Further explanation will be given with reference to the accompanying drawings.
附图说明Description of drawings
为了更清楚地说明本发明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一简单地介绍，显而易见地，下面描述中的附图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。In order to explain the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are of the present invention. For some embodiments of the invention, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.
图1是本发明实施例提供的关节面修复假体的剖视图；Figure 1 is a cross-sectional view of an articular surface repair prosthesis provided by an embodiment of the present invention;
图2是本发明实施例提供的关节面修复假体的结构示意图；Figure 2 is a schematic structural diagram of an articular surface repair prosthesis provided by an embodiment of the present invention;
图3是本发明实施例提供的关节面修复假体的侧视图；Figure 3 is a side view of an articular surface repair prosthesis provided by an embodiment of the present invention;
图4是本发明实施例提供的关节面修复假体的结构示意图，其中，未示意骨接触层的结构，示意骨接触层内侧结构；Figure 4 is a schematic structural diagram of an articular surface repair prosthesis provided by an embodiment of the present invention, in which the structure of the bone contact layer is not shown, but the inner structure of the bone contact layer is shown;
图5是本发明实施例提供的关节面修复假体的仰视结构示意图，其中，未示意骨接触层的结构，示意骨接触层内侧结构；Figure 5 is a schematic bottom view of the structure of the articular surface repair prosthesis provided by the embodiment of the present invention, in which the structure of the bone contact layer is not shown, but the inner structure of the bone contact layer is shown;
图6是本发明实施例提供的关节面修复假体的结构示意图，其中，其中，未示意顶部的关节接触面；Figure 6 is a schematic structural diagram of an articular surface repair prosthesis provided by an embodiment of the present invention, in which the joint contact surface at the top is not shown;
图7是本发明实施例提供的关节面修复假体的侧视图，其中，未示意顶部的关节接触面；Figure 7 is a side view of an articular surface repair prosthesis provided by an embodiment of the present invention, in which the joint contact surface at the top is not shown;
图8是本发明实施例提供的关节面修复假体的仰视透视图，其中，未示意延长柄，其中，通孔1121被骨接触层200遮蔽，通过虚线显示。8 is a bottom perspective view of the articular surface repair prosthesis provided by the embodiment of the present invention, in which the extended handle is not shown, and the through hole 1121 is blocked by the bone contact layer 200 and is shown by a dotted line.
附图标记：Reference signs:
100、实体部；110、接触部；111、关节接触面；112、连接面；1121、通孔；113、第二空腔；120、延长柄；121、防旋槽；130、多孔层；100. Solid part; 110. Contact part; 111. Joint contact surface; 112. Connection surface; 1121. Through hole; 113. Second cavity; 120. Extended handle; 121. Anti-rotation groove; 130. Porous layer;
200、骨接触层；210、多孔接触层；200. Bone contact layer; 210. Porous contact layer;
300、第一空腔；400、加强柱。300. First cavity; 400. Reinforcement column.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明中的附图，对本发明中的技术方案进行清楚、完整地描述，显然，所描述的实施例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作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。In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.
在本发明实施例的描述中，需要说明的是，术语“中心”、“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”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实施例和简化描述，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实施例的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "back", "left" and "right" The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this document. The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as limiting the embodiments of the invention. Furthermore, the terms “first”, “second” and “third” are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
在本发明实施例的描述中，需要说明的是，除非另有明确的规定和限定，术语“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，或一体连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。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实施例中的具体含义。In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stated and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Or integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood in specific situations.
在本发明实施例中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。In the embodiment of the present invention, unless otherwise expressly provided and limited, the first feature "on" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in intermediate contact. Indirect media contact. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”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实施例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必须针对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一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of embodiments of the present invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.
下面结合图1-图8描述本发明实施例的关节面修复假体。The articular surface repair prosthesis according to the embodiment of the present invention will be described below with reference to Figures 1-8.
参考图1所示，本发明实施例提供的关节面修复假体，包括：实体部100和骨接触层200，实体部100一侧设置有与目标关节适配的关节接触面111；骨接触层200位于实体部100的另一侧，用于连接目标骨结构，包括设置在实体部100外侧的多孔接触层210，多孔接触层210与实体部100之间形成第一空腔300，多孔接触层210设置有连通孔（图中未示意），第一空腔300通过连通孔与外部连通。Referring to Figure 1, the articular surface repair prosthesis provided by the embodiment of the present invention includes: a solid part 100 and a bone contact layer 200. One side of the solid part 100 is provided with a joint contact surface 111 adapted to the target joint; the bone contact layer 200 is located on the other side of the solid part 100 and is used to connect the target bone structure, including a porous contact layer 210 disposed outside the solid part 100. A first cavity 300 is formed between the porous contact layer 210 and the solid part 100. The porous contact layer 210 is provided with a communication hole (not shown in the figure), and the first cavity 300 is connected to the outside through the communication hole.
根据本发明实施例的关节面修复假体，实体部100能够为假体提供稳定的结构支持，保证假体能够承受关节运动的负荷。实体部100形成有关节接触面111，关节接触面111与目标关节适配，使假体能够更好地重现关节运动方位和稳定性，从而保证患者的关节功能，有助于恢复患者关节的正常功能。骨接触层200用于连接目标骨结构，与目标骨结构稳定结合，减少假体松动或脱落的风险，增强骨结合。其中，多孔接触层210设置连通孔，连通孔为骨长入假体提供条件，人骨可长入多孔接触层210，与多孔接触层210的多孔结构形成嵌合，提高假体与目标骨结构的结合强度，有助于目标骨结构与假体的融合，提高假体的长期稳定性。其中，通过多孔接触层210与实体部100之间形成第一空腔300，不仅可以减重，降低对关节和周围骨骼的负担，同时，还可以为骨骼提供充分的骨长入空间，提高骨长入稳定性，从而提高假体与目标骨结构的结合的可靠性。According to the articular surface repair prosthesis according to the embodiment of the present invention, the solid part 100 can provide stable structural support for the prosthesis to ensure that the prosthesis can withstand the load of joint motion. The solid part 100 is formed with a joint contact surface 111. The joint contact surface 111 is adapted to the target joint so that the prosthesis can better reproduce the joint movement direction and stability, thereby ensuring the patient's joint function and helping to restore the patient's joint function. normal function. The bone contact layer 200 is used to connect the target bone structure, stably combine with the target bone structure, reduce the risk of loosening or falling off of the prosthesis, and enhance osseointegration. Among them, the porous contact layer 210 is provided with connecting holes, which provide conditions for bone to grow into the prosthesis. Human bones can grow into the porous contact layer 210 and form a fit with the porous structure of the porous contact layer 210, thereby improving the connection between the prosthesis and the target bone structure. The bonding strength helps the fusion of the target bone structure and the prosthesis and improves the long-term stability of the prosthesis. Among them, the first cavity 300 is formed between the porous contact layer 210 and the solid part 100, which can not only reduce the weight and reduce the burden on the joints and surrounding bones, but also provide sufficient bone growth space for the bones, improving the bone structure. Ingrowth stability, thereby improving the reliability of the combination of the prosthesis and the target bone structure.
当然，还可以在第一空腔300中补充生长因子，可刺激目标骨结构中的骨细胞增值和分化，促进骨骼愈合和再生过程。也可以是在第一空腔300中注入药物或治疗性物质，有助于减轻患者的症状和促进康复，如：可注入抗炎、止痛或抑制感染的药物。Of course, growth factors can also be supplemented in the first cavity 300, which can stimulate the proliferation and differentiation of bone cells in the target bone structure and promote the bone healing and regeneration process. Drugs or therapeutic substances may also be injected into the first cavity 300 to help alleviate the patient's symptoms and promote recovery, such as anti-inflammatory, analgesic or infection-inhibiting drugs.
其中，关节接触面111为实体抛光设计，粗糙度Ra≤0.1，关节接触面111能够与关节活动副对侧形成杵臼关节，有助于实现杵臼关节的万向活动；多孔接触层210为多孔结构设计，可与去除坏死病灶后内凹形的健康骨质配合，可通过骨水泥或解剖压配形式实现术后即刻稳定，实现术后远期骨长入。Among them, the joint contact surface 111 is a solid polished design with a roughness Ra ≤ 0.1. The joint contact surface 111 can form a club-and-socket joint with the opposite side of the joint movable pair, helping to realize the universal movement of the club-and-socket joint; the porous contact layer 210 has a porous structure. Designed to cooperate with the concave healthy bone after removal of necrotic lesions, it can achieve immediate postoperative stability through bone cement or anatomical press-fitting, and achieve long-term bone ingrowth after surgery.
本发明实施例的关节面修复假体，主要针对关节副损伤单侧、局灶病变或病变的轻症患者，手术治疗时可针对地去除病灶，将关节面修复假体插设于去除病灶后内凹的健康骨质，在修复关节面、消除患者疼痛的同时，极大保留骨量，避免对关节副对侧进行过度治疗，是一种保留关节型的产品和手术技术，减少适用患者痛苦，降低治疗费用。The articular surface repair prosthesis of the embodiment of the present invention is mainly used for patients with unilateral joint damage, focal lesions or mild disease. During surgical treatment, the lesions can be specifically removed, and the articular surface repair prosthesis is inserted after the lesions are removed. The concave healthy bone not only repairs the joint surface and eliminates the patient's pain, but also greatly preserves the bone mass and avoids over-treatment of the contralateral side of the joint. It is a joint-preserving product and surgical technique that reduces the pain of the patient. , reduce treatment costs.
关于“一侧”与“另一侧”需要说明的是，实体部的一侧形成形成关节接触面111，实体部的另一侧连接骨接触层200，其中“一侧”与“另一侧”为相对位置的关系，其在关节面修复假体中不交叉，也就是，关节接触面111与骨接触层200没有交叉重叠或互相穿插，可以理解为，它们各自在不同的位置和角度上实现假体的不同功能，如：关节接触面111实现与目标关节适配的功能，骨接触层200实现与目标骨结构连接的功能。其中，关节接触面111和骨接触层200的形状可根据具体的关节修复需求进行优化设计，不受特定形状的限制，灵活性好，可根据患者的状况和需求来定制和选择合适的关节面修复假体，以实现更好的治疗效果和适应性。Regarding "one side" and "the other side", it should be noted that one side of the solid part forms the joint contact surface 111, and the other side of the solid part is connected to the bone contact layer 200, where "one side" and "the other side" " is a relative position relationship, which does not intersect in the articular surface repair prosthesis. That is, the joint contact surface 111 and the bone contact layer 200 do not overlap or intersect with each other. It can be understood that they are at different positions and angles. Realize different functions of the prosthesis, for example: the joint contact surface 111 realizes the function of adapting to the target joint, and the bone contact layer 200 realizes the function of connecting with the target bone structure. Among them, the shapes of the joint contact surface 111 and the bone contact layer 200 can be optimized and designed according to specific joint repair needs. They are not restricted by specific shapes and have good flexibility. The appropriate joint surface can be customized and selected according to the patient's condition and needs. Repair prostheses for better treatment results and adaptability.
当然，骨接触层200还可以是实体结构，提高假体的结构强度；结合图1，骨接触层200还可以包括多孔接触层210和实体结构，骨接触层200的实体结构与目标骨结构接触，实体结构连接实体部100，从而增强多孔接触层210与实体部100的连接强度，提高假体的结构强度。Of course, the bone contact layer 200 can also be a solid structure to improve the structural strength of the prosthesis; with reference to Figure 1, the bone contact layer 200 can also include a porous contact layer 210 and a solid structure, and the solid structure of the bone contact layer 200 is in contact with the target bone structure. , the solid structure connects the solid part 100, thereby enhancing the connection strength between the porous contact layer 210 and the solid part 100, and improving the structural strength of the prosthesis.
结合图1，实体部100连接有多孔层130，多孔层130与多孔接触层210之间设置第一空腔300。在多孔接触层210设置连通孔的基础上，实体部100设置多孔层130，关节面修复假体形成双层多孔结构，不仅增加骨细胞生长的空间，增加架体与目标骨结构的接触面积，提高假体与目标骨结构的结合强度，从而增强假体植入的稳定性，而且双层多孔结构的设计还有助于假体的轻量化设计，使假体能够降低对关节和目标骨结构的负荷，减少潜在的架体磨损和松动的风险。Referring to FIG. 1 , the solid part 100 is connected to the porous layer 130 , and the first cavity 300 is provided between the porous layer 130 and the porous contact layer 210 . On the basis that the porous contact layer 210 is provided with connecting holes, the solid part 100 is provided with a porous layer 130, and the joint surface repair prosthesis forms a double-layer porous structure, which not only increases the space for the growth of bone cells, but also increases the contact area between the frame and the target bone structure. Improve the bonding strength between the prosthesis and the target bone structure, thereby enhancing the stability of the prosthesis implantation, and the design of the double-layer porous structure also contributes to the lightweight design of the prosthesis, so that the prosthesis can reduce the impact on the joint and the target bone structure load, reducing the potential risk of frame wear and looseness.
连通孔和多孔层130的孔中的至少一个的孔径在600μm到1000μm之间，孔隙率在50%到80%之间。600μm到1000μm的孔径可以促进骨细胞的长入和增殖，使骨细胞能够有效地渗透到连通孔和多孔层130内，促进架体与目标骨结构的愈合。同时，50%到80%的孔隙率有助于新的骨组织的形成和骨愈合过程，可以提供足够的空间用于血管渗透，使血液和养分可以向假体和周围组织供应，从而保持假体的健康和稳定。其中，孔径包括600μm和1000μm这两个端点值，孔隙率包括50%和80%这两个端点值。At least one of the connecting holes and the pores of the porous layer 130 has a pore diameter between 600 μm and 1000 μm, and a porosity between 50% and 80%. Pore diameters of 600 μm to 1000 μm can promote the ingrowth and proliferation of bone cells, allowing bone cells to effectively penetrate into the connected pores and porous layer 130 , thereby promoting the healing of the frame and the target bone structure. At the same time, the porosity of 50% to 80% contributes to the formation of new bone tissue and the bone healing process, and can provide enough space for blood vessel penetration so that blood and nutrients can be supplied to the prosthesis and surrounding tissues, thereby maintaining the prosthesis. body health and stability. Among them, the pore diameter includes the two endpoint values of 600μm and 1000μm, and the porosity includes the two endpoint values of 50% and 80%.
在一些实施例中，多孔接触层210和多孔层130为类骨小梁型多孔结构，丝径为550±200μm ，孔径为800±200μm，孔隙率为50%~80%，为骨长入提供适宜的三维空间结构。通过类骨小梁型结构，使多孔接触层210和多孔层130模仿自然骨骼的结构，为骨细胞提供类似自然骨骼的生长环境，有助于提高假体与目标骨结构的相容性，促进骨细胞在类骨小梁型多孔结构的侵入和增殖，从而加速新骨组织的形成和骨愈合过程。In some embodiments, the porous contact layer 210 and the porous layer 130 are bone-like trabecular porous structures, with a wire diameter of 550±200 μm, a pore diameter of 800±200 μm, and a porosity of 50% to 80%, which provides for bone ingrowth. Suitable three-dimensional space structure. Through the bone-like trabecular structure, the porous contact layer 210 and the porous layer 130 imitate the structure of natural bone, providing a growth environment similar to natural bone for bone cells, which helps to improve the compatibility between the prosthesis and the target bone structure and promote Osteocytes invade and proliferate in the trabecular-like porous structure of bone, thereby accelerating the formation of new bone tissue and the bone healing process.
多孔接触层210与实体部100之间形成第一空腔300，第一空腔300可以理解为外层多孔结构（多孔接触层210）与内部实体结构（实体部100）之间设计有中空层（第一空腔300）。外层多孔结构厚度为0.5mm~2mm，骨质可长入外层多孔结构并且通过中空层与内层多孔结构（多孔层130）形成嵌合。中空层设计，不仅可以为骨质提供充分的骨长入空间，提高骨长入稳定性，采用生物固定，可提高远期骨长入能力，还可以在中空层植入诱导骨长入的活性因子，提高骨长入效果。其中，“生物固定”可以理解为骨细胞在假体周围、表面和内部的生长和渗透，形成生物骨愈合的过程来实现假体与目标骨结构的固定。“远期”可以理解为术后的较长的时间段内。The first cavity 300 is formed between the porous contact layer 210 and the solid part 100 . The first cavity 300 can be understood as a hollow layer designed between the outer porous structure (porous contact layer 210 ) and the internal solid structure (the solid part 100 ). (First cavity 300). The thickness of the outer porous structure is 0.5mm~2mm, and bone can grow into the outer porous structure and form a fit with the inner porous structure (porous layer 130) through the hollow layer. The hollow layer design not only provides sufficient space for bone ingrowth and improves the stability of bone ingrowth, but also uses biological fixation to improve long-term bone ingrowth capacity. It can also be implanted in the hollow layer to induce bone ingrowth activity. factors to improve bone ingrowth effect. Among them, "biological fixation" can be understood as the growth and penetration of bone cells around, on the surface and inside the prosthesis, forming a process of biological bone healing to achieve fixation of the prosthesis and the target bone structure. "Long-term" can be understood as the longer period of time after surgery.
在其他一些实施例中，多孔层130与实体部100之间设置有过渡层，也就是，内层多孔结构与实体部分设计有交叉部分，交叉部分的厚度为0.2mm~0.5mm，交叉部分也设置有孔结构，能够提高内层多孔结构与实体部分的结合强度，也就是，提高多孔层130与实体部100的结合强度，进而提高假体的强度。In some other embodiments, a transition layer is provided between the porous layer 130 and the solid part 100. That is, the inner porous structure and the solid part are designed to have an intersection. The thickness of the intersection is 0.2mm~0.5mm, and the intersection is also Providing a porous structure can improve the bonding strength between the inner porous structure and the solid part, that is, the bonding strength between the porous layer 130 and the solid part 100 can be improved, thereby improving the strength of the prosthesis.
结合图4和图5，实体部100包括接触部110和延长柄120，接触部110的一侧设置有关节接触面111，接触部110的另一侧设置有连接面112并连接延长柄120。通过在接触部110的一侧设置关节接触面111，可以确保假体与目标关节的表面接触紧密，并模拟自然关节的形状和运动范围，有助于提高假体和关节的适配程度，从而使假体能够满足关节的运动功能。在接触部110的另一侧设置连接面112，并连接延长柄120，可以使假体与目标骨结构的结合牢固，其中，连接面112和延长柄120作为连接部分，延长柄120插入目标骨结构内，连接面112和延长柄120与目标骨结构接触，有助于提高假体与目标骨结构的接触面积，提供额外的支持和稳固性，减少假体松动或脱落的风险，进而使假体满足人体正常或极限运动过程中所需的力学强度。4 and 5 , the solid part 100 includes a contact part 110 and an extended handle 120. One side of the contact part 110 is provided with a joint contact surface 111, and the other side of the contact part 110 is provided with a connecting surface 112 and is connected to the extended handle 120. By arranging the joint contact surface 111 on one side of the contact part 110, it is possible to ensure that the prosthesis is in close contact with the surface of the target joint, and to simulate the shape and range of motion of the natural joint, which helps to improve the degree of fit between the prosthesis and the joint. So that the prosthesis can meet the movement function of the joint. Providing a connection surface 112 on the other side of the contact part 110 and connecting the extension handle 120 can make the prosthesis firmly combined with the target bone structure. The connection surface 112 and the extension handle 120 serve as the connection part, and the extension handle 120 is inserted into the target bone. Within the structure, the connecting surface 112 and the extension handle 120 are in contact with the target bone structure, which helps to increase the contact area between the prosthesis and the target bone structure, provides additional support and stability, and reduces the risk of loosening or falling off of the prosthesis, thereby making the prosthesis more durable. The body meets the mechanical strength required by the human body during normal or extreme movements.
在一些实施例中，延长柄120设置至少两个，延长柄120的长度不同。通过设置不同长度的延长柄120，可以实现对假体插入目标骨结构的长度的调节，使假体可以根据患者的具体情况和需要，选择合适长度的延长柄120，从而实现个性化的治疗。可以理解的是，不同患者可能有不同的骨骼解剖结构，也就是，不同患者的骨结构受损程度可能不同，则去除病灶后的骨结构不同，延长柄120的长度不同，可以更好地适应不同患者的需求，从而提高假体的适应性和与个体差异的匹配性。进而，使专业医疗人员在手术中可以根据实际情况选择具有合适长度延长柄120的假体，从而节省时间和减少手术的风险。In some embodiments, at least two extension handles 120 are provided, and the lengths of the extension handles 120 are different. By providing extension handles 120 of different lengths, the length of the prosthesis inserted into the target bone structure can be adjusted, so that the prosthesis can select an extension handle 120 of appropriate length according to the patient's specific conditions and needs, thereby achieving personalized treatment. It is understood that different patients may have different skeletal anatomy, that is, the degree of damage to the bone structure of different patients may be different, and the bone structure after the lesion is removed is different, and the length of the extension handle 120 is different, which can better adapt to The needs of different patients are improved to improve the adaptability of the prosthesis and its matching with individual differences. Furthermore, professional medical personnel can select a prosthesis with an appropriate length of the extended handle 120 according to actual conditions during surgery, thereby saving time and reducing surgical risks.
其中，关节面修复假体的实体部100可设计有多个柱状结构的延长柄120，连接面112和延长柄120的表面也为类骨小梁型多孔结构，也就是，实体部100设置有多孔层130，多孔层130的结构参数与多孔接触层210的连通孔结构参数相同，既可防止假体旋转，也可实现远期生物固定，也就是，可实现术后较长时间内假体与目标骨结构之间能够形成稳固的生物力学连接。Among them, the solid part 100 of the articular surface repair prosthesis can be designed with a plurality of extended handles 120 with a columnar structure. The connecting surface 112 and the surface of the extended handle 120 are also bone-like trabecular porous structures. That is, the solid part 100 is provided with The porous layer 130 has the same structural parameters as the connected pores of the porous contact layer 210, which can prevent the rotation of the prosthesis and achieve long-term biological fixation, that is, the prosthesis can be maintained for a long time after surgery. A stable biomechanical connection can be formed with the target bone structure.
需要说明的是，在实体部100设置连接面112和延长柄120时，骨接触层200设置在实体部100的外侧，也就是，结合图1，多孔接触层210设置在连接面112和延长柄120的外侧。It should be noted that when the connecting surface 112 and the extended handle 120 are provided on the solid part 100, the bone contact layer 200 is provided on the outside of the solid part 100. That is, with reference to Figure 1, the porous contact layer 210 is provided on the connecting surface 112 and the extended handle. 120 outside.
参考图1所示，接触部110内部形成有第二空腔113，也就是，关节接触面111对应的实体部分内部设计有空心结构（第二空腔113），在保证假体力学强度的情况下，降低假体重量，从而降低因假体自身重力对目标骨结构产生的压应力和剪切应力。同时，第二空腔113的设计可以增加关节接触面111的弹性和柔韧性，有助于提高假体的耐久性和抗压能力，减少对周围组织的应力，更好地适应人的运动需求。Referring to Figure 1, a second cavity 113 is formed inside the contact portion 110. That is, a hollow structure (second cavity 113) is designed inside the solid part corresponding to the joint contact surface 111, while ensuring the mechanical strength of the prosthesis. This reduces the weight of the prosthesis, thereby reducing the compressive stress and shear stress on the target bone structure caused by the prosthesis's own gravity. At the same time, the design of the second cavity 113 can increase the elasticity and flexibility of the joint contact surface 111, which helps to improve the durability and pressure resistance of the prosthesis, reduce the stress on surrounding tissues, and better adapt to human movement needs. .
结合图1和图8，连接面112设置有通孔1121，连接面112的外侧设置多孔接触层210，连通孔与通孔1121连通。1 and 8 , the connecting surface 112 is provided with a through hole 1121 , a porous contact layer 210 is provided outside the connecting surface 112 , and the connecting hole is connected to the through hole 1121 .
参考图1所示，在接触部110内部形成有第二空腔113时，通孔1121设置在第二空腔113的底部，也就是，通孔1121设置在第二空腔113的下方，第二空腔113通过通孔1121与多孔接触层210连通，多孔接触层210设置有连通孔，进而，第二空腔113通过通孔1121与连通孔连通，进而与外界连通。第二空腔113通过通孔1121与外界连通，能够方便在假体加工制造过程中，第二空腔113内部的粉末等杂质通过通孔1121排出第二空腔113，进而杂质通过连通孔排出假体，可以保证第二空腔113内部的杂质充分排出，使假体满足临床植入要求。同时，连接面112外侧设置多孔接触层210，也就是，通孔1121设置在多孔接触层210的内侧，从通孔1121出来的杂质可直接通过连通孔排出，从而无需在多孔接触层210额外设置用于排出粉末等杂质的通孔，能够提高骨长入的界面面积，也就是，提高假体与目标骨结构的接触面积，保证骨长入的效果。Referring to FIG. 1 , when the second cavity 113 is formed inside the contact portion 110 , the through hole 1121 is provided at the bottom of the second cavity 113 , that is, the through hole 1121 is provided below the second cavity 113 . The second cavity 113 is connected to the porous contact layer 210 through the through hole 1121, and the porous contact layer 210 is provided with a communication hole. Furthermore, the second cavity 113 is connected to the communication hole through the through hole 1121, and is further connected to the outside world. The second cavity 113 is connected to the outside world through the through hole 1121, which can facilitate the discharge of impurities such as powder inside the second cavity 113 from the second cavity 113 through the through hole 1121 during the prosthesis manufacturing process, and then the impurities are discharged through the communication hole. The prosthesis can ensure that impurities inside the second cavity 113 are fully discharged, so that the prosthesis meets clinical implantation requirements. At the same time, a porous contact layer 210 is provided outside the connection surface 112, that is, the through hole 1121 is provided inside the porous contact layer 210, and the impurities coming out of the through hole 1121 can be directly discharged through the connecting hole, thereby eliminating the need for an additional porous contact layer 210. The through hole used to discharge impurities such as powder can increase the interface area for bone ingrowth, that is, increase the contact area between the prosthesis and the target bone structure to ensure the effect of bone ingrowth.
以关节面修复假体采用金属3D打印一体成型为例，第二空腔113通过通孔1121连通外界，在3D打印过程中使用支撑材料填充第二空腔113内部，以确保实体部100在打印过程中保持稳定。打印完成后，去除不需要的实体部分和支撑材料，从而形成第二空腔113结构。去除后的实体部分和支撑材料变成粉末状的杂质，第二空腔113通过通孔1121连通多孔接触层210的连通孔，通孔1121可以理解为清除粉末孔，清除粉末孔可设置多个，可保证第二空腔113内的粉末杂质通过通孔1121排出，并通过连通孔排出假体。也就是，可保证空心结构中金属粉末清理干净，满足临床植入要求。清除粉末孔设计在实体部100，外层多孔结构（多孔接触层210）多孔设计，也就是，多孔接触层210无需设置用于排出粉末的通孔，能够提高骨长入的界面面积，粉末可通过贯通的外层多孔结构（多孔接触层210）排出。Taking an articular surface repair prosthesis that is integrated with metal 3D printing as an example, the second cavity 113 is connected to the outside world through the through hole 1121. During the 3D printing process, support material is used to fill the interior of the second cavity 113 to ensure that the solid part 100 is printed. remain stable during the process. After printing is completed, unnecessary solid parts and supporting materials are removed, thereby forming the second cavity 113 structure. The removed solid part and supporting material become powdery impurities, and the second cavity 113 is connected to the communication hole of the porous contact layer 210 through the through hole 1121. The through hole 1121 can be understood as a powder removal hole, and multiple powder removal holes can be provided. , which can ensure that the powder impurities in the second cavity 113 are discharged through the through hole 1121 and the prosthesis is discharged through the communication hole. That is to say, the metal powder in the hollow structure can be ensured to be clean and meet clinical implantation requirements. The powder removal hole is designed in the solid part 100, and the outer porous structure (porous contact layer 210) is designed to be porous. That is, the porous contact layer 210 does not need to be provided with through holes for discharging powder, which can increase the interface area for bone ingrowth, and the powder can It is discharged through the penetrating outer porous structure (porous contact layer 210).
关节面修复假体可采用金属3D打印一体成型，假体关节面（关节接触面111）、假体骨界面（骨接触层200）以及延长柄120均可定制设计，满足不同患者的需求。The joint surface repair prosthesis can be integrally formed using metal 3D printing. The prosthetic joint surface (joint contact surface 111), prosthetic bone interface (bone contact layer 200) and extension handle 120 can all be customized to meet the needs of different patients.
结合图2，关节接触面111外凸，关节接触面111外凸的设计可以增加关节的活动范围，使假体能够与关节副对侧形成万向转动，使假体与关节副对侧的配合更接近自然关节的活动度。With reference to Figure 2, the joint contact surface 111 is convex. The design of the convex joint contact surface 111 can increase the range of motion of the joint, enable the prosthesis to form a universal rotation with the opposite side of the joint pair, and ensure the coordination between the prosthesis and the opposite side of the joint pair. Closer to natural joint mobility.
连接面112向远离关节接触面111的方向外凸。由于连接面112向远离关节接触面111的方向外凸，也就是，连接面112向目标骨结构凸出，可以增加假体与目标骨结构的接触面积和贴合程度，从而提高假体的稳固性和固定性。同时，外凸的设计有助于分散关节运动过程中产生的应力和压力，在关节运动时，假体上的压力会均匀地分布到周围的骨骼和软组织上，减少应力集中，有助于降低假体和周围组织的损伤风险。The connecting surface 112 is outwardly convex in a direction away from the joint contact surface 111 . Since the connection surface 112 protrudes away from the joint contact surface 111, that is, the connection surface 112 protrudes toward the target bone structure, the contact area and degree of fit between the prosthesis and the target bone structure can be increased, thereby improving the stability of the prosthesis. sex and fixity. At the same time, the convex design helps to disperse the stress and pressure generated during joint movement. During joint movement, the pressure on the prosthesis will be evenly distributed to the surrounding bones and soft tissues, reducing stress concentration and helping to reduce Risk of damage to the prosthesis and surrounding tissue.
需要说明的是，结合图6，连接面112向远离关节接触面111的方向外凸，也就是，连接面112是球面，相较于连接面112设计成平面结构，连接面112外凸设计能够更好地适配去除坏死病灶区域后的健康骨结构（目标骨结构）。如：骨骼坏死区域一般呈现团状结构，对应去除坏死区域后的健康骨结构表面是内凹的，相较于平面，连接面112外凸能够更好地适应骨骼的不规则形状，以提高假体与骨结构的贴合度，使压力更均匀地分布，从而降低压力的集中，从而减轻目标骨结构的压力，降低患者的痛苦。同时，外凸的连接面112设计还可以更大程度地保留骨量，有助于保留更多的健康骨骼，从而提高关节面修复假体的长期稳定性和耐久性。It should be noted that, with reference to Figure 6, the connecting surface 112 is convex in the direction away from the joint contact surface 111. That is, the connecting surface 112 is a spherical surface. Compared with the connecting surface 112 designed as a planar structure, the convex design of the connecting surface 112 can Better adaptation to the healthy bone structure (target bone structure) after removal of necrotic disease areas. For example, bone necrosis areas generally present a group-like structure, and the surface of the healthy bone structure after removing the necrosis areas is concave. Compared with the flat surface, the convex connection surface 112 can better adapt to the irregular shape of the bone to improve the accuracy of the bone structure. The fit between the body and the bone structure distributes the pressure more evenly, thereby reducing pressure concentration, thus reducing the pressure on the target bone structure and reducing the patient's pain. At the same time, the convex connection surface 112 design can also retain bone mass to a greater extent, helping to retain more healthy bones, thereby improving the long-term stability and durability of the articular surface repair prosthesis.
下面对防旋槽121进行说明。The anti-rotation groove 121 will be described below.
参考图4和图5，实体部100的延长柄120中设置若干个内凹的防旋槽121。内凹的防旋槽121能够增加延长柄120与目标骨结构的接触面积，目标骨结构的骨细胞长入内凹的防旋槽121中，能够避免假体在植入后发生不必要的旋转或移位，有助于保持假体的正确定位和稳固性。Referring to FIGS. 4 and 5 , a plurality of recessed anti-rotation grooves 121 are provided in the extended handle 120 of the solid part 100 . The concave anti-rotation groove 121 can increase the contact area between the extension handle 120 and the target bone structure. The bone cells of the target bone structure grow into the concave anti-rotation groove 121, which can prevent unnecessary rotation or rotation of the prosthesis after implantation. Displacement helps maintain the correct positioning and stability of the prosthesis.
在一些实施例中，参考图6和图7，多孔接触层210设置在实体部100的外侧，骨接触层位于延长柄120外侧的区域设置有内凹的防旋槽121，能够增加骨接触层与目标骨结构的接触面积，有助于保持假体的正确定位和稳固性。In some embodiments, referring to FIGS. 6 and 7 , the porous contact layer 210 is provided on the outside of the solid part 100 , and the bone contact layer is provided with an inward anti-rotation groove 121 in the area outside the extension handle 120 , which can increase the bone contact layer. The contact area with the target bone structure helps maintain the correct positioning and stability of the prosthesis.
当然，还可以是在实体部100和骨接触层均设置有防旋槽121，也就是，在假体的表面和内部均设置有防旋槽121，能够进一步提高假体与目标骨结构结合的稳定性，进一步提高假体与目标骨结构的紧密程度，从而能够有效保证假体的固定可靠。Of course, anti-rotation grooves 121 can also be provided on both the solid part 100 and the bone contact layer, that is, anti-rotation grooves 121 are provided on both the surface and the inside of the prosthesis, which can further improve the combination of the prosthesis and the target bone structure. Stability, further improves the closeness between the prosthesis and the target bone structure, thus effectively ensuring reliable fixation of the prosthesis.
其中，防旋槽121可以是设置在延长柄120（结合图3），可以设置在骨接触层，还可以是设置在延长柄120和骨接触层，在实体部100的延长柄120与骨接触层中的至少一个设置若干内凹的防旋槽121，防旋槽121能够提高假体与目标骨结构的结合程度，防旋槽121的设置可根据实际情况进行选择。其中，防旋槽121可设置一个，也可以设置多个，防旋槽121的数量和尺寸可根据不同患者的骨骼状况进行设置，此处不作限定。Among them, the anti-rotation groove 121 can be provided on the extended handle 120 (see Figure 3 ), can be provided on the bone contact layer, or can be provided on the extended handle 120 and the bone contact layer, and the extended handle 120 of the solid part 100 is in contact with the bone. At least one of the layers is provided with a number of concave anti-rotation grooves 121. The anti-rotation grooves 121 can improve the degree of integration between the prosthesis and the target bone structure. The settings of the anti-rotation grooves 121 can be selected according to actual conditions. Among them, one or more anti-rotation grooves 121 can be provided. The number and size of the anti-rotation grooves 121 can be set according to the skeletal conditions of different patients, and are not limited here.
需要说明的是，当关节面修复假体植入目标骨结构时，需要通过骨水泥或解剖压配的方式保证假体的植入。其中，解剖压配的方式是将特殊形状的压配物（如定制的金属架体或塑料架体）与假体配合，保证假体能够精准植入到对应区域，此时，内凹的防旋槽121可与目标骨结构接触，保证假体植入效果。骨水泥可以理解为一种特殊的医用胶水，用于将假体与目标骨结构黏合在一起，当假体与骨水泥配合植入时，内凹的放旋槽可有效的增加假体与骨水泥形成微内铰锁的面积，从而提高假体的稳定性和可靠性。其中，微内铰锁可以理解为骨水泥与内凹放旋槽之间形成的微小内部锁定黏合结构的面积，有助于增强骨水泥与骨骼之间的黏结力和固定效果。It should be noted that when the articular surface repair prosthesis is implanted into the target bone structure, bone cement or anatomical press-fitting must be used to ensure implantation of the prosthesis. Among them, the anatomical press-fitting method is to match a special-shaped press-fitting object (such as a customized metal frame or plastic frame) with the prosthesis to ensure that the prosthesis can be accurately implanted in the corresponding area. The rotation groove 121 can contact the target bone structure to ensure the implantation effect of the prosthesis. Bone cement can be understood as a special medical glue used to bond the prosthesis to the target bone structure. When the prosthesis and bone cement are implanted together, the concave rotation groove can effectively increase the number of joints between the prosthesis and the bone. The cement forms an area for micro-inward hinge locking, thereby improving the stability and reliability of the prosthesis. Among them, micro internal hinge lock can be understood as the area of the tiny internal locking adhesive structure formed between the bone cement and the internal concave rotation groove, which helps to enhance the bonding force and fixation effect between the bone cement and the bone.
参考图4和图5所示，实体部100和骨接触层200之间设置若干个加强柱400，加强柱400可以在实体部100和骨接触层200之间提供额外的连接和支撑，提高外层多孔结构的力学性能，增加关节面修复假体的结构稳定性。同时，加强柱400的存在可以有效地分散应力，减轻关节面修复假体在负载下产生的应力集中，从而降低假体和骨骼之间的应力，减少可能出现的松动或移位的风险。Referring to Figures 4 and 5, several reinforcing columns 400 are provided between the solid part 100 and the bone contact layer 200. The reinforcing columns 400 can provide additional connection and support between the solid part 100 and the bone contact layer 200, improving the external appearance. The mechanical properties of the layered porous structure increase the structural stability of the joint surface repair prosthesis. At the same time, the presence of the reinforcing column 400 can effectively disperse stress and reduce the stress concentration generated by the joint surface repair prosthesis under load, thereby reducing the stress between the prosthesis and the bone and reducing the risk of possible loosening or displacement.
本发明实施例的关节面修复假体，该假体包括关节面部分（关节接触面111）、骨界面部分（骨接触层200）以及延长柄120部分。其中，关节面部分为实体抛光设计，降低关节副的摩擦系数，避免对关节副对侧造成损伤，关节面部分与关节活动副对侧形成杵臼关节，实现万向活动。骨界面部分为多孔结构设计，与去除坏死灶后内凹形健康骨质配合，可通过骨水泥或解剖压配形式实现术后即刻稳定，实现术后远期骨长入，有利于初始稳定性和远期稳定性。延长柄120埋入到内凹形健康骨质中，也为多孔结构设计，有助于术后长期骨长入稳定，同时防止假体轴向旋转，优化假体力学传导，提高假体在位使用寿命。An articular surface repair prosthesis according to an embodiment of the present invention includes an articular surface part (articular contact surface 111), a bone interface part (bone contact layer 200), and an extended handle 120 part. Among them, the joint surface has a solid polished design to reduce the friction coefficient of the joint pair and avoid damage to the opposite side of the joint pair. The joint surface part forms a pestle-socket joint with the opposite side of the joint movable pair to achieve universal movement. The bone interface part is designed with a porous structure, which cooperates with the concave healthy bone after the removal of necrosis. It can achieve immediate postoperative stability through bone cement or anatomical press-fitting, and achieve long-term postoperative bone ingrowth, which is conducive to initial stability. and long-term stability. The extension stem 120 is embedded in the concave healthy bone and is also designed with a porous structure, which helps to stabilize long-term bone ingrowth after surgery, while preventing axial rotation of the prosthesis, optimizing mechanical conduction of the prosthesis, and improving prosthesis in place. service life.
其中，“初始”、“远期”和“长期”可以理解为关节修复手术后不同的时间节点。Among them, "initial", "long-term" and "long-term" can be understood as different time points after joint repair surgery.
最后应说明的是：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。Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be used Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent substitutions are made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030430.3ACN116725747B (en) | 2023-08-16 | 2023-08-16 | Prosthetic joint surface |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030430.3ACN116725747B (en) | 2023-08-16 | 2023-08-16 | Prosthetic joint surface |
| Publication Number | Publication Date |
|---|---|
| CN116725747A CN116725747A (en) | 2023-09-12 |
| CN116725747Btrue CN116725747B (en) | 2023-12-05 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311030430.3AActiveCN116725747B (en) | 2023-08-16 | 2023-08-16 | Prosthetic joint surface |
| Country | Link |
|---|---|
| CN (1) | CN116725747B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0224890A2 (en)* | 1985-12-05 | 1987-06-10 | AHC-Oberflächentechnik Friebe & Reininghaus GmbH | Active implant |
| US9132018B1 (en)* | 2013-08-27 | 2015-09-15 | Mohammed A. Hajianpour | Total ankle replacement |
| CN204814286U (en)* | 2015-07-28 | 2015-12-02 | 张英泽 | Combine inseparabler bionical joint replacement false body with long bone |
| CN113208780A (en)* | 2021-06-10 | 2021-08-06 | 北京爱康宜诚医疗器材有限公司 | Joint replacement prosthesis |
| CN213963774U (en)* | 2020-08-21 | 2021-08-17 | 上海交通大学医学院附属第九人民医院 | Temporomandibular joint and mandible joint prosthesis |
| CN215019750U (en)* | 2021-01-14 | 2021-12-07 | 上海交通大学医学院附属第九人民医院 | Promote joint prosthesis and implant stable gasket |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0224890A2 (en)* | 1985-12-05 | 1987-06-10 | AHC-Oberflächentechnik Friebe & Reininghaus GmbH | Active implant |
| US9132018B1 (en)* | 2013-08-27 | 2015-09-15 | Mohammed A. Hajianpour | Total ankle replacement |
| CN204814286U (en)* | 2015-07-28 | 2015-12-02 | 张英泽 | Combine inseparabler bionical joint replacement false body with long bone |
| CN213963774U (en)* | 2020-08-21 | 2021-08-17 | 上海交通大学医学院附属第九人民医院 | Temporomandibular joint and mandible joint prosthesis |
| CN215019750U (en)* | 2021-01-14 | 2021-12-07 | 上海交通大学医学院附属第九人民医院 | Promote joint prosthesis and implant stable gasket |
| CN113208780A (en)* | 2021-06-10 | 2021-08-06 | 北京爱康宜诚医疗器材有限公司 | Joint replacement prosthesis |
| Publication number | Publication date |
|---|---|
| CN116725747A (en) | 2023-09-12 |
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