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Cup and liner integrated acetabulum component and preparation method thereof

An acetabular and integrated technology, which is applied in the field of cup liner integrated acetabular components and its preparation, can solve the problems of wear particles on the outer surface of the acetabular lining, the influence of other patient systems, and high processing precision requirements, so as to improve the early fixation effect and Long-term stability, firm and stable structure, and long service life

Inactive Publication Date: 2018-05-18
上海科太迈迪医疗器械有限公司
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AI Technical Summary

Problems solved by technology

[0004] At present, the acetabular lining is matched with the acetabular cup through a snap-fit ​​mechanism or interference, which requires high processing precision for the inner surface of the acetabular cup and the outer surface of the acetabular lining, and there is a certain degree of looseness. Possibility of increasing wear on the outer surface of the acetabular lining and producing particles that may induce osteolysis and affect other systems of the patient

Method used

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  • Cup and liner integrated acetabulum component and preparation method thereof
  • Cup and liner integrated acetabulum component and preparation method thereof
  • Cup and liner integrated acetabulum component and preparation method thereof

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Embodiment Construction

[0033] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0034] See Figure 1 ~ Figure 3 As shown, in a specific embodiment of the present invention, the cup-lined integrated acetabular assembly of the present invention includes an acetabular cup 1, an acetabular liner 2 and a trabecular bone structure 3, and the trabecular bone structure 3 is arranged on the On the outer surface 11 of the acetabular cup 1, the acetabular cup 1 and the trabecular bone structure 3 are integrally formed, and the acetabular lining 2 is welded on the inner surface 12 of the acetabular cup 1, so The inner surface 12 of the acetabular cup 1 described above is a rough surface with a microporous structure. The microporous structure has no special requirements, tetrahedrons and hexahedrons are acceptable, and the raw material 4 of the acetabular lining to be processed in a molten state (mentioned in step (2) of the prepara...

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Abstract

The invention provides a cup and liner integrated acetabulum component and a preparation method thereof. The cup and liner integrated acetabulum component comprises an acetabulum cup, an acetabulum liner and a bone trabecula structure. The bone trabecula structure is arranged on the outer surface of the acetabulum cup, the acetabulum cup and the bone trabecula structure are formed integrally, theacetabulum liner is in melt connection with the inner surface of the acetabulum cup, and the inner surface of the acetabulum cup is a rough surface with a microporous structure. Preferably, the porosity of the bone trabecula structure is 50%-65%, the pore diameter of the bone trabecula structure is 300-800micron, the acetabulum cup is a metal acetabulum cup, the bone trabecula structure is a metalbone trabecula structure, and the acetabulum liner is a nonmetal acetabulum liner. The cup and liner integrated acetabulum component is structurally firm and stable, capable of improving post-surgical early-stage fixing effects and long-term stability, safe, simple and convenient to use, long in service life, ingenious in design, simple in structure and convenient and simple in manufacturing.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical devices, in particular to the technical field of hip joint prosthesis replacement, in particular to a cup-lined integrated acetabular component and a preparation method thereof. Background technique [0002] The hip joint is one of the largest and most important joints in the human body, bearing the entire upper body weight of the body. Because the cartilage surface at both ends of the joint will be rough and degenerated with age, heredity, degeneration, overuse and injury, joint replacement surgery is required. Total hip replacement is currently one of the most effective surgical treatments for relieving pain and dysfunction in patients, and the acetabular component is an important application part in total hip replacement. [0003] Currently, common acetabular components are mainly composed of an acetabular cup and an acetabular liner. The outer surface of the acetabular cup is coat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/34
CPCA61F2/30771A61F2/34A61F2002/30451A61F2002/30769A61F2002/30772A61F2002/30968A61F2002/3097
Inventor 夏慎朱梁刘海波周彤
Owner 上海科太迈迪医疗器械有限公司
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