CN1266670A - 生物复合型中空人工关节假体 - Google Patents

生物复合型中空人工关节假体 Download PDF

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CN1266670A
CN1266670A CN 00107241 CN00107241A CN1266670A CN 1266670 A CN1266670 A CN 1266670A CN 00107241 CN00107241 CN 00107241 CN 00107241 A CN00107241 A CN 00107241A CN 1266670 A CN1266670 A CN 1266670A
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artificial joint
joint prosthesis
cavity body
bone
prosthese
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CN1150866C (zh
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蔡谞
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/36Femoral heads ; Femoral endoprostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof

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  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)

Abstract

本发明公开的生物复合型中空人工关节假体,假体或假体与骨质接触的部分为空腔体。空腔体内填充有骨形态发生蛋白-载体复合物,假体壁上设计有不规则或规则排列的洞孔,洞孔与空腔体相通,假体壁的侧壁为轴向柱状增厚。其植入骨腔后可实现假体生物性一体化,使骨质与假体结合牢固、稳定,不发生松动。可作为人体各大关节的置换物。

Description

生物复合型中空人工关节假体
本发明涉及一种人体关节置换物,属于医学技术领域。
在骨科伤、疾病中,骨坏死、骨性关节炎、风湿性和类风湿性关节炎晚期,以及创伤所致的关节毁损发生率占有很高的比例。采用人工关节置换术是迄今国内外治疗关节毁损的有效措施。其不仅可以减轻和消除病人的疼痛,而且还可以保留或恢复关节功能,达到生活自理甚至恢复正常活动和劳动工作能力。
当前,供临床应用的人工关节假体类型巨多,仅全髋、全膝人工关节就有数十种类型,它们均为实心体。这种结构类型的人工关节假体植入人体骨腔内,由于其表面的骨长入和与骨的结合范围及程度均有限,骨与假体之间的界面始终存在,再加上关节活动过程中产生的磨损颗粒可进入骨—假体界面引起骨溶解,所以植入骨腔内的人工关节假体松动发生率较高,因而需要进行手术翻新,给病人增加了痛苦和经济负担。
本发明的目的在于提供一种植入骨腔的人工关节假体与其周围骨质可实现假体生物性一体化,使骨质与假体的结合牢固、稳定,不发生松动。
本发明的目的是这样实现的:将人工关节假体或人工关节假体与骨质接触的部分制作成空腔体,空腔体内填充骨形态发生蛋白—载体复合物,假体壁上设计有不规则或规则排列的洞孔,洞孔与空腔体相通。为了使人工关节假体的强度不受影响而弹性模量降低,人工关节假体壁的侧壁制作成轴向柱状增厚。
按照上述技术方案,本发明将现行的实心人工关节假体设计为空心体,变人工关节假体与骨的全接触界面为有限界面,并通过骨形态发生蛋白等生物活性物质诱导周围骨质长入和加快长入多孔的人工关节假体表面及空腔内,生成骨小梁,使植入骨腔的人工关节假体与周围骨质融为一体,成为骨骼的永久部分。
本发明的优点:
1.在体内与骨质结合牢固,长期稳定;
2.可阻断关节活动过程中磨损颗粒的扩散途径,避免骨—假体界面骨溶解的发生;
3.减少制作人工关节假体的材料用量,减轻假体重量。
下面结合附图对本发明的具体结构作进一步介绍。
图1是本发明股骨假体总体结构侧视图;
图2是股骨假体截面图;
图3是髋臼假体侧视图;
图4是髋臼假体剖视图。
图中:1.空腔体    2.假体壁    3.洞孔
      4.骨形态发生蛋白—载体复合物    5.假体壁侧壁
参见附图1,假体壁(2)上制作有不规则排列的洞孔(3)。
参见附图2,假体为空腔体(1),空腔体(1)内填充有骨形态发生蛋白—载体复合物(4),假体壁上的洞孔(3)与空腔体(1)相通,假体壁侧壁(5)为轴向柱状增厚。
参见附图3,假体壁上制作有不规则排列的洞孔(3)。
参见附图4,假体为空腔体(1),空腔体(1)内填充有骨形态发生蛋白—载体复合物,假体壁上的洞孔(3)与空腔体(1)相通。
本发明可采用铸造工艺方法,将设计为空腔体的人工关节假体与假体壁上的洞孔一次铸造成型,然后通过假体壁上的洞孔向空腔体内注入或填充骨形态发生蛋白—载体复合物。也可以在手术前临时向假体空腔体内注入或填充骨形态发生蛋白—载体复合物。
本发明可作为人体各关节的置换物。

Claims (2)

1.生物复合型中空人工关节假体,由钛合金等高强度生物惰性材料制成,其特征在于:人工关节假体或人工关节假体与骨质接触的部分为空腔体(1),空腔体(1)内填充有骨形态发生蛋白—载体复合物(4),假体壁(2)上制作有不规则或规则排列的洞孔(3),洞孔(3)与空腔体(1)相通。
2.如权利要求1所述的生物复合型中空人工关节假体,其特征在于:人工关节假体壁侧壁(5)为轴向柱状增厚。
CNB001072412A 2000-04-29 2000-04-29 生物复合型中空人工关节假体 Expired - Fee Related CN1150866C (zh)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325124C (zh) * 2003-11-21 2007-07-11 王岩 人工关节假体及其制备方法
JP2007536948A (ja) * 2004-03-31 2007-12-20 サイオン オーソピディクス アクチェンゲゼルシャフト 人工関節のセメントレス固定のためのダブルシェルインプラント
WO2006097932A3 (en) * 2005-03-17 2009-04-30 Active Implants Corp Implant devices
CN101745146B (zh) * 2009-12-31 2013-04-03 东南大学 载铈纳米管阵列面功能化的人工关节制备方法
CN104323872A (zh) * 2014-11-19 2015-02-04 重庆德固科技有限公司 一种人造骨头
CN104411271A (zh) * 2012-06-29 2015-03-11 京瓷医疗株式会社 人工关节用柄、人工关节用柄的部件以及人工关节用柄的制造方法
WO2016127522A1 (zh) * 2015-02-09 2016-08-18 张英泽 促进骨折愈合的多孔仿生内固定装置
CN110507435A (zh) * 2018-05-22 2019-11-29 香港中文大学 诱导成骨假体装置及其制造方法

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1325124C (zh) * 2003-11-21 2007-07-11 王岩 人工关节假体及其制备方法
JP2007536948A (ja) * 2004-03-31 2007-12-20 サイオン オーソピディクス アクチェンゲゼルシャフト 人工関節のセメントレス固定のためのダブルシェルインプラント
US7776097B2 (en) * 2004-03-31 2010-08-17 Scyon Orthopaedics Ag Double shell implant for cementless anchorage of joint prostheses
CN1980615B (zh) * 2004-03-31 2013-02-06 赛昂整形外科股份公司 用于关节假体的无接合剂锚固的双壳体植入件
WO2006097932A3 (en) * 2005-03-17 2009-04-30 Active Implants Corp Implant devices
CN101745146B (zh) * 2009-12-31 2013-04-03 东南大学 载铈纳米管阵列面功能化的人工关节制备方法
CN104411271A (zh) * 2012-06-29 2015-03-11 京瓷医疗株式会社 人工关节用柄、人工关节用柄的部件以及人工关节用柄的制造方法
CN104411271B (zh) * 2012-06-29 2016-12-07 京瓷医疗株式会社 人工关节用柄、人工关节用柄的部件以及人工关节用柄的制造方法
CN104323872A (zh) * 2014-11-19 2015-02-04 重庆德固科技有限公司 一种人造骨头
WO2016127522A1 (zh) * 2015-02-09 2016-08-18 张英泽 促进骨折愈合的多孔仿生内固定装置
US10363075B2 (en) 2015-02-09 2019-07-30 Yingze Zhang Porous bionic internal fixation device for promoting healing of fractured bone
CN110507435A (zh) * 2018-05-22 2019-11-29 香港中文大学 诱导成骨假体装置及其制造方法

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