Prosthetic socket having deformation adjusting and controlling function and 4D printing forming method of prosthetic socket

Abstract

The invention provides a prosthetic socket having a deformation adjusting and controlling function. The prosthetic socket comprises an inner cavity and an outer cavity, wherein the inner cavity is made from intelligent deformable materials; the outer cavity is made from polymer structure materials having better carrying capacity; and the thickness ratio of the inner cavity to the outer cavity is 1to (3-5). The inner cavity made from the intelligent deformable materials is introduced into a prosthetic socket through a 4D printing technique to form the prosthetic socket having a deformation adjusting and controlling function, a hard and soft coupled prosthetic socket having human body biological mechanical properties is printed layer by layer according to parameters of three-dimensional pattern data, biological mechanics characteristics of muscle and bone and the like of disabled limbs of a wearer, under the excitation of an outer field, the inner cavity produces intelligent chronologydeformation of expanding, distorting, folding and the like, the shape and the hardness of the inner part of the prosthetic socket are dynamically adjusted, the jointing degree of the prosthetic socketand the disabled limbs of the wearer is improved, the uniformity of pressure distribution between the prosthetic socket and the interface of the disabled limbs of the wearer is strengthened, and thedressing comfortability and the use safety of the wearer are improved.

Description

technical field [0001] The invention relates to a novel prosthetic socket and a manufacturing method thereof, in particular, the invention relates to a prosthetic socket with a deformation control function and a 4D printing forming method thereof. The invention belongs to the technical field of medical rehabilitation equipment. Background technique [0002] At present, the total number of physically disabled people in my country due to industrial injuries, diseases, natural disasters, traffic accidents, etc. is as many as millions. They generally need to restore their limb functions to the greatest extent by installing artificial limbs. Existing prosthetics for both upper and lower limbs typically include a prosthetic socket, an alignment system and functional parts such as a knee, foot or hand. No matter what kind of prosthesis is installed, it is necessary to dock and match the residual limb and the functional parts of the prosthesis through the prosthetic socket. As the...

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Problems solved by technology

[0004] Although the 3D printing method described in the above patent documents solves most of the personalized problems in the manufacture of prosthetic sockets, there is still a lack of a good solution for the data processing of the real 3D scanning of the wearer's limb stump under load. The main reason is that The shape of the prosthetic socket is closely related to the wearer's residual limb stress, muscle tightness, and sitting posture. However, the shape of the prosthetic socket formed by 3D printing based on 3D scanning data is fixed and cannot be adjusted according to the wearer's sitting posture. , muscle tightness and other appropriate dynamic adjustments

Furthermore, as the wearer grows older and the muscles gradually atrophy, the shape and condition of the end of the residual limb will change over time. Re-3D printing a new prosthetic socket will result in a lot of waste of manpower and material resources, and waste prosthetics will be accepted. The cavity will cause different degrees of pollution to the environment

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