Multifunctional tibia pad test mold holder

The design of the multifunctional tibial liner mold holder solves the problem of assessing the height of the liner mold and the soft tissue balance in the existing technology, enabling precise adjustment and simplified operation, thus improving surgical efficiency and safety.

CN224056147UActive Publication Date: 2026-03-31SHANDONG XINHUA UNITED ORTHOPEDIC EQUIP CO LTD
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Patent Information

Application Number
CN202520277400.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-03-31
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Existing tibial liner mold holders lack fine adjustment capabilities, making it impossible to precisely adjust the height of the liner mold. This results in inaccurate size selection, complex structural design, inconvenient operation, and difficulty in assessing soft tissue balance, increasing surgical time and complexity.

Method used

A multifunctional tibial liner mold holder was designed, comprising a main handle, a slider, a connecting column, a connector, a thickness adjustment knob, a base mold, and a liner mold. The height and angle of the liner mold can be precisely adjusted through the thickness adjustment knob and the conversion knob, providing intuitive thickness and angle indications, simplifying the operation steps, and assessing soft tissue balance.

Benefits of technology

It enables precise adjustment of the liner mold, reduces the number of molds required, saves instrument costs, simplifies the operation steps, and allows for rapid assessment of the appropriateness of the extension/flexion gap and soft tissue balance, thus reducing surgical time.

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Abstract

The utility model discloses a multifunctional tibia pad test mold holder, and belongs to the technical field of medical instruments. The defect that in the prior art, during traditional total knee joint replacement, a tibia liner prosthesis test mold is high in cost is overcome. A main body structure of the device comprises a main body handle, a sliding block, a connecting column, a connecting piece, a thickness adjusting knob, a base test mold and a liner test mold, the sliding block is installed on the main body handle in a sliding mode, and the thickness adjusting knob penetrates through the main body handle and then is connected with the bottom of the sliding block; the lower end of the connecting column is installed in an installation hole in the sliding block, and the upper end of the connecting column penetrates through the conversion knob and then is connected with the connecting piece. The base test mold is installed at the end of the main body handle, the liner test mold is connected with the connecting piece, and the height H between the liner test mold and the base test mold is the thickness of the tibia liner test mold. The total knee joint replacement device is mainly used for total knee joint replacement.
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