Devices for bone implants

A device with a guide member, reamer, and link member reshapes the cavity around the implant to fit reinforcing materials, addressing the gap issue in hip replacement surgery, ensuring stable support and preventing damage.

JP2026519294APending Publication Date: 2026-06-15メリル ヘルスケア プライベート リミテッド
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Patent Information

Application Number
JP2025570828
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-07
Filing Date
2024-06-07
Publication Date
2026-06-15

AI Technical Summary

Technical Problem

Conventional hip replacement devices often result in an undesirable gap between the stem prosthesis and the femur, leading to potential damage or fracture, due to inadequate support and complex mechanisms.

Method used

A device comprising a guide member, reamer, and link member is used to define and reshape the cavity around the implant, ensuring adequate support by reaming the gap to fit a reinforcing material, utilizing a rotatable coupling mechanism and biocompatible materials like titanium or stainless steel.

Benefits of technology

The device simplifies the process of reaming cavities to fit reinforcing materials, providing stable support for the stem prosthesis and preventing implant damage or bone fracture, while being easy to use and adaptable to individual anatomical variations.

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Abstract

This disclosure relates to a device for defining a bone cavity. The device includes a link member, a reamer, and a guide member. The link member includes at least one rotatable coupling mechanism that connects the guide member and the reamer. The reamer and the guide member are coupled to opposing ends of the link member. The reamer is configured to rotate around a pivot of the guide member. The guide member is configured as the center of rotation. The guide member includes a head portion and a tail portion. The tail portion of the guide member is coupled to an implant.
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