Orbital fracture treatment implant

Abstract

The present invention relates to an orbital fracture treatment implant that applies a fixing method of a locking member rather than of a screw so that, in comparison to a conventional implant, surgery time is reduced and the likelihood of complications is minimized, and thus safety is improved.

Description

Implants for orbital fracture treatment

[0001] The present invention relates to an implant for treating orbital fracture.

[0002] An orbital fracture is a break in the bone surrounding the orbit, the space surrounding the eyeball. It commonly occurs in the thin inferior or medial orbital wall. When an orbital fracture occurs, the orbital volume increases, causing the eye to sink. In severe cases, the muscles that move the eye may become trapped between the fractured bones, causing double vision. Therefore, treatment is necessary. Treatment involves restoring the tissues within the orbit to their original position and inserting an orbital implant into the fractured area. The implant can either permanently replace the bone at the site of the orbital fracture or serve as a replacement for the orbital wall until the fractured orbital wall is restored.

[0003] Traditionally, surgeons would visually assess the size and shape of the fracture, cut a flat orbital implant with scissors to a shape similar to the fracture, and then manually bend and insert it into the implant. However, this method is not easy to cut to exactly match the shape of the affected area, so the implant must be inserted and removed repeatedly. This not only causes damage to the orbital tissue but also prolongs the surgical time. In addition, the limitations of flat-shaped products make it difficult to achieve the three-dimensional shape and curvature of the orbital wall. Furthermore, if the orbital implant does not fit the actual affected area, it can detach from the orbital wall after surgery and cause incarceration of the orbital tissue, which can lead to the recurrence of diplopia or asymmetrical proptosis, causing complications such as the two eyes appearing different.

[0004] In order to improve these problems, Patent Document 1 adopted a method of fixing an orbital implant with a three-dimensional structure based on 3D printing technology with a screw. However, if an implant of the wrong shape is fixed, it is more dangerous, and the separate screw insertion process not only lengthens the surgical time, but also has the problem of the possibility of complications due to screw exposure.

[0005] The purpose of the present invention is to solve the above-described problem, and to provide an implant for treating orbital fractures that improves safety by minimizing the possibility of complications while shortening the surgical time compared to existing methods by applying a fixation method of a catch member instead of a screw.

[0006] In order to achieve the above object, an implant for treating an orbital fracture according to one embodiment of the present invention comprises a first member including a first connecting portion on one side and a second member including a second connecting portion connected to the first connecting portion, wherein at least one selected from the first member and the second member is provided with at least one catching member connected to an orbital wall.

[0007] According to one embodiment of the present invention, an implant for treating an orbital fracture is provided with a catch member in at least one selected from the first member and the second member, so that the implant can be tightly fixed to the affected area for a long time without being lifted off, and can be stably maintained by preventing detachment from the orbital wall after surgery.

[0008] In addition, by omitting the screw insertion process, the surgical time can be shortened, while the possibility of complications due to screw exposure can be minimized, thereby improving safety.

[0009] In addition, since it is composed of two parts divided into a first part and a second part, it is easy to insert a medical device during surgery, so surgery can be performed regardless of the location or shape of the fracture site.

[0010] FIG. 1a and FIG. 1b are schematic diagrams illustrating an example of 3D printing an implant for treating an orbital fracture according to the shape of the orbital wall and bonding it to the orbital wall, FIG. 1c is a photograph of an RP output, and FIG. 1d is a photograph of an implant output.

[0011] Figure 2 is a schematic diagram showing a state in which an implant for treating orbital fracture according to the present invention is connected to the orbital wall.

[0012] Figure 3 is a one-sided perspective view of an implant for treating orbital fracture according to the present invention.

[0013] Figure 4 is an exploded perspective view of an implant for treating orbital fracture according to the present invention.

[0014] Figure 5 is a perspective view of the other side of an implant for treating orbital fracture according to the present invention.

[0015] Figures 6a and 6b are photographs showing a structure in which the first member and the second member are formed integrally, and Figures 7a and 7b are schematic diagrams showing a state in which Figures 6a and 6b are coupled to the orbital wall.

[0016] Hereinafter, embodiments of the present invention are described in detail. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided solely to ensure complete disclosure of the present invention and to more fully inform those skilled in the art of the present invention.

[0017] When an element is referred to as being positioned "above" or "below" another element in this specification, this includes both the meaning that the element is positioned directly "above" or "below" the other element, or that additional elements may be interposed between them. In this specification, the terms "upper" and "lower" are relative concepts established from the viewpoint of the observer, and if the viewpoint of the observer changes, "upper" may mean "lower" and "lower" may mean "upper."

[0018] In multiple drawings, the same reference numerals denote substantially the same elements. In addition, terms such as "include" or "have" should be understood to indicate the presence of a described feature, number, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0019] In describing embodiments of the present invention, terms are defined in consideration of their functions in the embodiments of the present invention, and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the contents throughout this specification.

[0020]

[0021] Hereinafter, the implant for treating orbital fracture of the present invention will be described in detail with reference to drawings.

[0022] Referring to FIGS. 1A to 1D, the implant (100) for treating orbital fracture according to the present invention is a patient-customized implant. Specifically, it is manufactured by three-dimensionally modeling each patient's medical image (CT) and inserting and compressing a prosthetic material into a jig manufactured using a 3D printer according to the modeled shape, thereby enabling the implementation of a three-dimensional structure tailored to each patient. In addition, since it can be manufactured in two parts, not only is insertion simple, but positioning is effective and insertion of medical devices can be facilitated during surgery. In addition, since it is made of one or more selected from ceramic, biodegradable polymer, and metal, it is possible to implement an accurate curved shape corresponding to the orbital wall, so that it can be stably fixed to the orbital wall.

[0023] Referring to FIGS. 2 to 5, an implant (100) for treating an orbital fracture includes a first member (110) and a second member (120), and at least one selected from among the first member (110) and the second member (120) may be provided with at least one hooking member (125c) that is fastened to the orbital wall, and preferably, at least one lower surface selected from among the first member (110) and the second member (120) may be provided with at least one hooking member (125c) that is fastened to the orbital wall.

[0024] In addition, as shown in FIGS. 6a and 6b, the first member (110) and the second member (120) can be formed integrally, and as shown in FIGS. 7a and 7b, a catch member (125c) can be provided on the lower surface to be fastened to the orbital wall.

[0025] The first member (110) may include a first connecting portion (115) on one side, and the first connecting portion (115) may include a plurality of protrusions (115a) that are formed to be spaced apart from each other and a groove (115b) positioned between the protrusions (115a). Although the drawing discloses a structure in which one groove (115b) is provided between two protrusions (115a) that are formed to be spaced apart from each other, the structure is not limited to this structure, and the number of protrusions (115a) and grooves (115b) can be adjusted depending on the shape of the fracture site. Although not shown in the drawing, a catch member (125c) may be provided on the first member (110) depending on the location of the patient's lesion site or the remaining orbital bone.

[0026] For example, the first member (110) may include one or more first through holes (111). As shown in the drawing, the first through holes (111) may be arranged in three parallel lines, but are not limited thereto, and the number may be increased depending on the size or shape of the first member. As described above, the first through holes (111) allow smooth blood flow during or after orbital reconstruction surgery.

[0027] The second member (120) may include a second coupling portion (125) coupled with the first coupling portion (115), and the second coupling portion (125) may include a detachment prevention portion (125a) on which the protrusion (115a) is fixed and coupled, and a connection portion (125b) disposed between the detachment prevention portion (125a) and corresponding to the groove portion (115b).

[0028] The anti-separation member (125a) may include a fixing member (125a-1) on which the protrusion (115a) is fixed, and a catch (125a-2) that protrudes from one surface of the fixing member (125a-1). In the present embodiment, the height of the catch (125a-2) may be formed to be greater than the thickness of the protrusion (115a) so that the protrusion (115a) is more stably fixed and the detachment is prevented, and a step may be formed at the end of the catch (125a-2). In addition, the catch (125a-2) may be formed to be inclined toward the protrusion (115).

[0029] As shown in FIG. 5, one or more catch members (125c) that are fastened to the orbital wall can be formed in the connecting portion (125b). The catch members (125c) can be formed by bending from the connecting portion (125b) toward the orbital wall, and specifically, can be formed to extend perpendicularly to one end of the connecting portion (125b).

[0030] Meanwhile, the catch member (125c) may be placed at the ends of the first member (110) and the second member (120) depending on the location of the patient's lesion site, or may be placed on an imaginary line (C) that divides the length of the first member (110) and the second member (120) into two. For example, the catch member (125c) may be placed so that at least a portion thereof overlaps the imaginary line (C) that divides the length of the first member (110) and the second member (120) into two, but is not limited thereto, and may be placed at any location as long as it corresponds to the patient's lesion site.

[0031] By arranging the retaining member (125c) as described above, it is possible to securely fix the implant to the affected area for a long time without lifting, and to prevent the implant from slipping off the orbital wall after surgery, thereby ensuring stable maintenance. In addition, the weak strength can be reinforced depending on the material. In addition, by omitting the conventional screw insertion process through the retaining member (125c) of the present embodiment, the surgical time can be shortened, while minimizing the possibility of complications due to screw exposure, thereby improving safety.

[0032] In this embodiment, the virtual line (C) may be located at the center of the longitudinal direction of the implant (100) for treating orbital fractures, which may correspond to the midpoint between the inner and lower orbital walls. The longitudinal direction may refer to the direction in which the first member (110) and the second member (120) are joined.

[0033] For example, the second member (120) may include one or more second through holes (121) to ensure smooth blood flow during or after orbital reconstruction surgery. In the drawing, the number of second through holes (111) is shown as three, but this is not limited thereto, and the number may be increased depending on the size or shape of the second member.

[0034]

[0035] Although exemplary embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims also fall within the scope of the present invention.

[0036] All technical terms used in this invention, unless otherwise defined, have the same meaning as commonly understood by those skilled in the art. The contents of all publications cited herein as references are incorporated herein by reference.

[0037] Description of the symbol

[0038] 100: Implant for orbital fracture treatment

[0039] 110: First Absence

[0040] 111: First through hole

[0041] 115: First joint

[0042] 115a: Protrusion

[0043] 115b: Home

[0044] 120: Second Absence

[0045] 121: Second through hole

[0046] 125: Second joint

[0047] 125a: Anti-separation unit

[0048] 125a-1: Fixing member

[0049] 125a-2: Snag

[0050] 125b: Connection

[0051] 125c: Hook-and-loop

Claims

1. A first member including a first connecting portion on one side; and A second member including a second coupling portion coupled to the first coupling portion; An implant for treating an orbital fracture, wherein at least one selected from the first member and the second member is provided with at least one engaging member that is fastened to the orbital wall.

2. In paragraph 1, The above first connecting portion includes a plurality of protrusions formed spaced apart from each other on one side and a groove portion positioned between the protrusions, An implant for treating orbital fracture, wherein the second connecting portion is disposed between the detachment prevention portion on which the protrusion is fixed and connected and the detachment prevention portion, and includes a connecting portion corresponding to the groove portion.

3. In paragraph 2, An implant for treating an orbital fracture, wherein the above-mentioned retaining member is formed by bending from the above-mentioned connecting portion toward the orbital wall.

4. In paragraph 2, An implant for treating an orbital fracture, wherein the above-mentioned detachment prevention part includes a fixing member on which the protrusion part is fixed, and a catch formed by protruding from one surface of the fixing member.

5. In paragraph 1, An implant for treating an orbital fracture, wherein the first member comprises one or more first through holes, and the second member comprises one or more second through holes.

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