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KR-20260062229-A - Shear Deformation-Inducing Scaffold for Bone Fracture Treatment

KR20260062229AKR 20260062229 AKR20260062229 AKR 20260062229AKR-20260062229-A

Abstract

A scaffold for fracture treatment using a shear deformation induction method according to the present invention is a scaffold that assists in fracture treatment by being provided between a first fracture end and a second fracture end of a fractured bone, and comprises a first support member that supports the first fracture end, a second support member that supports the second fracture end while spaced apart from the first support member, and a shear deformation member provided between the first support member and the second support member, wherein a void is formed in which a biomaterial is introduced, and as the shear deformation member is shear deformed by a compressive force applied between the first fracture end and the second fracture end, the activity of the biomaterial introduced into the void can be promoted.

Inventors

  • 장승환

Assignees

  • 중앙대학교 산학협력단

Dates

Publication Date
20260507
Application Date
20241028

Claims (7)

  1. A scaffold for fracture treatment provided between the first fracture end and the second fracture end of a fractured bone to assist in fracture treatment, A first support member supporting the first fracture end; A second support member supporting the second fracture end while spaced apart from the first support member; and A shear deformation portion provided between the first support portion and the second support portion; Includes, A void is formed inside through which biomaterials are introduced, and The above shear deformation portion promotes the activity of biomaterial introduced into the void as it is shear-deformed by a compressive force applied between the first fracture end and the second fracture end. Scaffold for fracture treatment.
  2. In paragraph 1, The above shear deformation part is, Shear deformation is induced as the first support member and the second support member are moved parallel to each other by a compressive force applied between the first fracture end and the second fracture end. Scaffold for fracture treatment.
  3. In paragraph 1, The above shear deformation part is, Shear deformation is induced as the first support member and the second support member are rotated relative to each other by a compressive force applied between the first fracture end and the second fracture end. Scaffold for fracture treatment.
  4. In paragraph 3, The above shear deformation part is, A plurality of struts connecting the first support member and the second support member at an angle with respect to the axial direction, Scaffold for fracture treatment.
  5. In paragraph 3, The above shear deformation part is, It includes an axial shaft that forms a rotation axis between the first support member and the second support member, At least one of the first support member and the second support member induces shear deformation of the shear deformation member by rotating about the axial shaft and moving in the axial direction simultaneously due to a compressive force applied between the first fracture end and the second fracture end. Scaffold for fracture treatment.
  6. In paragraph 1, The above shear deformation part is, Shear deformation is induced as the first support member and the second support member tilt relative to each other due to a compressive force applied between the first fracture end and the second fracture end. Scaffold for fracture treatment.
  7. In paragraph 6, The above shear deformation part is, Formed to have different structural stiffness in different parts, so that shear deformation is induced by a compressive force applied between the first fracture end and the second fracture end, Scaffold for fracture treatment.

Description

Shear Deformation-Inducing Scaffold for Bone Fracture Treatment The present invention relates to a scaffold for treating fractures, and more specifically, to a scaffold for treating fractures in which shear deformation is induced by a compressive force applied to the fracture site to promote the activity of biomaterials embedded within the void. Fracture treatment is a critical challenge in the field of orthopedics, and there is a continuous demand for the development of effective treatment methods. Conventional fracture treatment methods have primarily focused on fixing and stabilizing the fracture site, aiming to promote bone union by restricting movement of the fracture area. And fracture treatment can be broadly divided into conservative treatment and surgical treatment. Conservative treatment primarily involves stabilizing the fracture site through external fixation, using plaster casts or splints to stabilize the fractured bone. This method is mainly used for relatively minor fractures or when surgery is difficult. On the other hand, surgical treatment is performed when the fracture is severe or rapid recovery is required. This is divided into internal fixation and external fixation; internal fixation involves making an incision at the fracture site and directly attaching fixation devices, such as metal plates, screws, or pins, to the bone. External fixation is a method of fixing the fracture site from the outside using pins or wires. Recently, along with these traditional methods, research is being conducted on methods to aid bone regeneration by implanting scaffolds made of biodegradable materials into the fracture site. Such scaffolds serve as a support structure for bone cells to grow and are gradually replaced by new bone tissue as they decompose. However, existing scaffolds for fracture treatment mainly focus on supporting the load on the fracture site and providing space for new bone tissue to grow. In addition, most existing scaffolds have a uniform structure, which tends to evenly distribute the compressive force applied to the fracture site. As a result, the mechanical stimulation received by the cells at the fracture site was limited, leading to a problem of reduced efficiency in the bone regeneration process. Therefore, a method to resolve these problems is required. Figure 1 is a drawing showing the application of the shear deformation-inducing fracture treatment scaffold of the present invention to a fractured area. FIG. 2 is a conceptual diagram showing a shear deformation pattern applicable to a scaffold for fracture treatment using a shear deformation induction method according to the present invention. FIGS. 3 and 4 are drawings showing a scaffold for fracture treatment using a shear deformation induction method according to the first embodiment of the present invention. FIG. 5 is a drawing showing a scaffold for fracture treatment using a shear deformation induction method according to a second embodiment of the present invention. FIG. 6 is a drawing showing a scaffold for fracture treatment using a shear deformation induction method according to the third embodiment of the present invention. FIG. 7 is a drawing showing a scaffold for fracture treatment using a shear deformation induction method according to the fourth embodiment of the present invention. FIG. 8 is a drawing showing a scaffold for fracture treatment using a shear deformation induction method according to the fifth embodiment of the present invention. In this specification, where a component (or region, layer, part, etc.) is described as being "on," "connected," or "combined" with another component, it means that it may be directly placed/connected/combined with the other component, or that a third component may be placed between them. Identical reference numerals denote identical components. Additionally, in the drawings, the thicknesses, proportions, and dimensions of the components are exaggerated for the effective illustration of the technical content. "And/or" includes all one or more combinations that the associated configurations can define. Terms such as "first," "second," etc., may be used to describe various components, but said components should not be limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. A singular expression includes a plural expression unless the context clearly indicates otherwise. Additionally, terms such as "below," "lower side," "above," and "upper side" are used to describe the relationships between the components depicted in the drawings. These terms are relative concepts and are described based on the directions indicated in the drawings. Unless otherwise defined, all terms used herein (including technical and scientific terms)