Digital data design method of local joint surface implant

Abstract

The invention discloses a digital data design method of a local joint surface implant, which comprises the steps as follows: (a) obtaining digital data of joints to be implanted: the joints of patients to be implanted are digitally scanned, thus obtaining the digital data of the joints to be implanted; (b) defining a repairing area and a preserving area: the digital data of the joints to be implanted is divided into two areas which are respectively defined, a cut area required to be cut is defined as the repairing area, and an area left after the cutting is defined as the preserving area; and (c) creating digital data of the implant: characteristics of the repairing area are selected and / or guide characteristics are automatically constructed, and the characteristics are defined as reference data and coordinates with digital data of the preserving area, thus generating a curved surface shape which can cover the outline of the repairing area after the process of mathematical operation, and the curved surface shape is cut and adjusted so as to fit for the size of the repairing area, and further defined as the digital data of the implant.

Description

technical field [0001] The invention relates to the manufacturing technology of artificial joints, in particular to a digital data design method for local joint surface implants. Background technique [0002] Press, in the design field of medical engineering human implants, at present most of the whole joint is replaced, so the overall design direction is mostly designed towards the structure and function of the whole joint. However, most of the joint damage is only localized. Therefore, when a total joint replacement is performed on a partially damaged joint, some healthy joints will also be replaced at the same time. Total artificial joint surgery is complicated, the wound is large, and the recovery of the patient is slow. In addition, if the artificial joint needs to be replaced again due to wear or disease in the future, more complicated surgery and treatment are often required. [0003] Nowadays, when performing joint replacement, partial surface replacement technology...

AI Technical Summary

Problems solved by technology

As far as the surface of the implant used in partial surface replacement is concerned, it is designed by the designer himself using one or more sets of software, and most of the standardized implants are used for design. It does not refer to the patient's own digital bone data, that is, in terms of implant design, most of them are standard product designs, and therefore cannot meet the design requirements of customized implants

The possible disadvantage of this method is that after the partial surface implant is assembled in the human body, it does not match well with the unresected bone

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