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Flexible, anti-resorptive implants

A technology for orthopedic implants and shells, which is applied in the direction of bone implants, joint implants, joint implants, etc., and can solve problems such as implant failure

Active Publication Date: 2017-05-24
SMITH & NEPHEW PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, bone resorption caused by stress shielding can even lead to complete failure of the implant, necessitating a second revision knee replacement

Method used

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  • Flexible, anti-resorptive implants
  • Flexible, anti-resorptive implants
  • Flexible, anti-resorptive implants

Examples

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Embodiment Construction

[0023] In order to provide an overall understanding of the systems, devices, and methods described herein, certain exemplary embodiments will now be described. For clarity in the illustration, the system and method will be described in conjunction with orthopedic knee implants. Those of ordinary skill in the art should understand that the systems, devices, and methods described herein can be appropriately adapted and modified, and that the systems, devices, and methods described herein can be used in other suitable applications, such as other types of joints and orthopedics. Implants, and other such additions and modifications will not depart from the scope of the present invention.

[0024] figure 1 The femoral component 100 of a knee replacement implant is shown. Compared to a conventional implant made of a solid metal block, the femoral component 100 is composed of two parts: a shell 102 and a middle part 104. These two parts together form a single implant component with an ...

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Abstract

Systems, devices, and methods are described for providing orthopedic implants that reduce the negative effects of stress shielding on surrounding bony structures. The orthopedic implant consists of two parts: a shell part forming the articulation interface and a middle part forming the bone interface. The shell sections are designed to reduce the absorption of articulating forces and distribute prone forces evenly to the midsection. The mid-section is designed to form a strong interface with natural bone and transfer forces from the outer shell to the bone.

Description

[0001] Cross references to related applications [0002] This application claims priority to U.S. Provisional Application No. 61 / 587,854 filed on January 18, 2012, which is incorporated herein by reference in its entirety. Background technique [0003] Orthopedic implants are used to strengthen or replace joints that usually experience high stress levels and wear. In the primary replacement surgery, joints that have undergone trauma or worn to the extent that they inhibit the normal function of the joint are replaced or reinforced with stronger wear-resistant implants. In the revision operation, the primary implant that was either unsuccessful or worn to the extent that its function was inhibited was replaced or replaced with a revision implant. The constant daily stress and wear at the replacement joint (especially for weight-bearing knee replacements) requires that both the primary implant and the revision implant be strong enough to withstand significant abuse. [0004] Conventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/38A61F2/30A61F2/28
CPCA61F2002/30011A61F2002/30014A61F2002/3082A61F2002/30879A61F2002/30971A61F2002/30985A61F2/3859A61F2/3094A61F2002/30006
Inventor R.L.兰东
Owner SMITH & NEPHEW PLC