CN219021763U - Skull repairing net plate - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, in particular to a skull repairing screen plate, which comprises a plurality of rows of repeated units which are continuously arranged, wherein each repeated unit comprises a plurality of repeated units which are continuously arranged, each repeated unit comprises three fixing parts and first connecting ribs which are used for connecting the fixing parts, the three fixing parts are connected end to form an isosceles triangle, and the three first connecting ribs form drainage holes; in one repeated arrangement, adjacent repeated units share a first connecting rib positioned at the waist of the isosceles triangle and fixing parts at two ends of the first connecting rib; the adjacent repeated arrangement shares a plurality of repeated units with the first connecting ribs and the fixing parts which are positioned at the bottom edge of the isosceles triangle; wherein, the fixed parts of the repeated units which are adjacently and repeatedly arranged and positioned at the tail ends of the same side are connected in a smooth transition way through the second connecting ribs. The skull repairing mesh plate optimizes the structure, improves the structural strength of the whole and the edge, solves the problem of sharp edge of the mesh plate, and ensures the postoperative experience of patients.

Description

Skull repairing net plate

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a skull repairing screen plate.

Background

In the prior art, for patients with skull defects greater than 3cm x 3cm, intraoperative or delayed skull defect repair is often performed to correct the low-craniocerebral pressure syndrome caused by the large-area skull defect and protect brain tissues from further damage. Cranioplasty is an effective method of treating a skull defect. Specifically, medical staff can manufacture corresponding net plates according to the shape of the skull defect of the patient. In the operation, the mesh plate is fixed on the surface of the skull to close the bone window at the defect part of the skull, thereby achieving the purposes of repairing the defect, restoring the integrity of the skull and protecting brain tissues.

However, in clinical work, the use of the mesh plate to perform the skull defect repair operation finds that most of the existing mesh plates have poor structural strength, and in order to ensure the bonding tightness degree of the mesh plate and the skull, after the mesh plate is connected and fixed with the skull by using more screws, the mesh plate can be bonded with the skull well, but the mesh plate is also easy to be stressed to generate bending deformation and has poor stability. In addition, the edges of partial mesh plates are sharp and protruding, so that the soft tissues of the patient are stimulated obviously, and the postoperative experience of the patient is poor.

Disclosure of Invention

Based on the above, the utility model provides the skull repairing net plate, which optimizes and adjusts the structure of the net plate, improves the structural strength, realizes higher stability of the net plate structure, solves the problems of sharp and prominent edges of the net plate, and ensures the postoperative experience of patients.

The utility model discloses a skull repairing mesh plate, which comprises a plurality of rows of repeated arrangements which are continuously arranged, wherein each repeated arrangement comprises a plurality of repeated units which are continuously arranged, each repeated unit comprises three fixing parts and first connecting ribs which are used for connecting the fixing parts, the three fixing parts are connected end to form an isosceles triangle, and the three first connecting ribs enclose a drainage hole;

in one of the repeated arrangements, adjacent repeated units share the first connecting rib positioned at the waist of the isosceles triangle and the fixing parts at the two ends of the first connecting rib; the adjacent repeated arrangement shares a plurality of first connecting ribs and fixing parts, wherein the first connecting ribs are positioned at the bottom side of an isosceles triangle;

and the fixing parts of the repeated units which are positioned at the tail ends of the same sides in adjacent repeated arrangement are connected in a smooth transition manner through second connecting ribs.

In some of these embodiments, the second connecting rib is in a convex arc shape.

In some of these embodiments, the securing portions of the repeating units adjacent the same side ends of the repeating arrangement have a common tangent, and the second connecting rib has an inner edge and an outer edge, the outer edge extending at least partially beyond the common tangent, the inner edge being located at least partially within the common tangent.

In some of these embodiments, three of the fixing portions of the repeating unit are connected end to end in an equilateral triangle.

In some of these embodiments, the repeat units have a thickness of 0.3mm to 0.8mm.

In some of these embodiments, the drainage aperture has an area of 10mm ² -25mm ² 。

In some of these embodiments, the second connecting rib has the same thickness as the first connecting rib.

In some of these embodiments, the second connecting rib has a width that is the same as the width of the first connecting rib.

In some of these embodiments, the securing portion includes a through hole for disposing a securing member.

In some of these embodiments, the through-hole includes a double-sided counterbore.

Advantageous effects

The skull repairing net plate provided by the utility model has the advantages that the repeated units in the isosceles triangle shape are arranged, so that the repeated units are in a square continuous close-packed form in the whole, the structure is quite regular, and the force transmission is concise and clear. The high stability characteristics of the triangles are utilized, so that the whole skull repairing net plate obtained by densely arranging a plurality of triangles has higher structural strength and extremely strong stability, is not easy to deform, can well maintain the original shape, ensures the skull repairing effect, and can also have better postoperative appearance. The fixing parts of the adjacent repeated units at the tail ends of the same sides are connected through the second connecting ribs in a smooth transition mode, so that the stimulation of the skull repairing net plate to a patient is reduced, the structural stability of the edge of the skull repairing net plate is improved, and the supporting strength of the edge is improved.

Drawings

FIG. 1 is a schematic view of a cranial repair mesh plate according to the present utility model in some embodiments;

FIG. 2 is a schematic view of a second attachment rib of the cranial repair mesh plate according to the present utility model in some embodiments;

FIG. 3 is a schematic view of a fixation portion of a cranial repair mesh plate according to the present utility model in some embodiments;

FIG. 4 is a schematic view of a fixation portion of a prosthetic mesh plate of the present utility model in another embodiment;

wherein, 1 is a skull repairing net plate, 10 is repeated arrangement, 100 is repeated units, 101 is a fixing part, 102 is a first connecting rib, 103 is a drainage hole, 200 is a second connecting rib, 201 is an outer edge, 202 is an inner edge, 1010 is a common tangent line, 1021 is a through hole, and 1022 is a fixing part body.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, fig. 1 shows a schematic view of a skull repairing mesh plate 1 according to an embodiment of the present utility model, and an embodiment of the present utility model provides a skull repairing mesh plate 1, which comprises a plurality of rows of repeated arrangements 10 arranged consecutively, wherein in the embodiment shown in fig. 1, the repeated arrangements 10 are arranged consecutively in the height direction of the paper surface. With continued reference to FIG. 1, each repeating arrangement 10 includes a plurality of repeating units 100 arranged in series. For ease of illustration, in the embodiment shown in FIG. 1, the number of repeat units 100 is the same for each repeat array 10, and the resulting skull repair screen 1 arranged by these repeat arrays 10 is generally rectangular in overall shape. It will be appreciated by those skilled in the art that the number of repeating units 100 per repeating array 10 is not required to be the same for the prosthetic mesh plate 1 of the present application, and that the number of repeating units 100 per repeating array 10 may be adjusted by those skilled in the art to form a prosthetic mesh plate 1 having a particular profile in order to allow the shape of the prosthetic mesh plate 1 to conform to the actual bone window shape of a patient.

As shown in fig. 1, the repeating unit 100 includes three fixing portions 101 and first connecting ribs 102 connecting the fixing portions 101, the three fixing portions 101 are connected end to form an isosceles triangle, and the three first connecting ribs 102 enclose a drainage hole 103. In one repeating arrangement 10, adjacent repeating units 100 share a first connecting rib 102 located at the waist of an isosceles triangle and fixing portions 101 at both ends thereof. The adjacent repeated arrangements 10 share the first connecting rib 102 and the fixing portion 101 where the repeated units 100 are located at the base of the isosceles triangle, and the repeated arrangements 10 at both sides share the first connecting rib 102 and the fixing portion 101. In other words, the repeating units 100 are repeatedly arranged along the extending direction of the base of the isosceles triangle, and the repeating arrangement 10 is repeatedly arranged along the height of the isosceles triangle.

The skull repairing net plate 1 of the utility model is preferably provided with the fixing parts 101 of the repeating units 100 which are positioned at the same side ends of the adjacent repeating arrays 10 and are connected in a smooth transition manner through the second connecting ribs 200.

According to the skull repairing net plate 1 disclosed by the utility model, the repeating units 100 are arranged to form the isosceles triangle, the adjacent repeating units 100 share the first connecting ribs 102 and the fixing parts 101 where the isosceles triangle waist is located, and the adjacent repeating units 10 share the first connecting ribs 102 and the fixing parts 101 where the plurality of repeating units 100 are located at the bottom edge of the isosceles triangle, so that the repeating units 100 are in a square continuous close-packed form in the whole, and the skull repairing net plate 1 disclosed by the utility model is quite regular in structure and concise and clear in force transmission. The triangle repeating units 100 utilize the characteristic of high stability of triangles in the structure, so that the whole skull repairing net plate 1 obtained by closely arranging a plurality of triangles has higher structural strength and extremely strong stability, and when the skull repairing net plate 1 is subjected to fixed external force, the skull repairing net plate 1 is not easy to deform, can well maintain the original shape, ensures the skull repairing effect, and can also have better postoperative appearance for patients.

In particular, the skull repairing net plate 1 of the present utility model emphasizes that the fixing portions 101 of the repeating units 100 located at the same side ends of the adjacent repeating arrangement 10 are smoothly transitionally connected by the second connecting ribs 200. The fixing part 101 of the repeating units 100 at the tail end of the repeating arrangement 10 is not protruded any more due to the arrangement of the second connecting ribs 200, so that the problem that the sharp protruding part of the skull repairing net plate 1 possibly stimulates a patient in the prior art is solved, and the use experience of the patient is fully ensured. And, the second connection rib 200 connects the repeating units 100 at the same side ends of the adjacent repeating arrangement 10, so that the two repeating units 100 have direct force transmission, the structural stability at the edge of the skull repairing net plate 1 of the present utility model is improved, and the supporting strength at the edge is improved.

It is understood that, in order for the second connection rib 200 to smoothly connect the fixing portions 101, the second connection rib 200 may be a straight line or a smooth curve. Preferably, in the embodiment shown in fig. 1, the second connection rib 200 is provided in a convex arc shape. The convex arc-shaped second connecting rib 200 is smooth as much as possible when contacting with soft tissues of a patient, so that foreign body sensation of the patient can be reduced, and on the other hand, the convex arc-shaped structural design enables the second connecting rib 200 to have better capability of resisting soft tissue pressure, so that the edge position of the skull repairing net plate 1 has higher structural strength, and the overall structural stability is ensured.

In some embodiments, the skull repairing mesh plate 1 of the present utility model is further preferably provided with the convex arc-shaped second connecting ribs 200. As shown in fig. 2, the two fixing portions 101 of the repeating units 100 at the same side ends of the adjacent repeating arrangement 10 have a common tangent 1010, and the second connecting rib 200 of the convex arc shape has an outer edge 201 facing away from the repeating unit 100 and an inner edge 202 facing toward the repeating unit 100, and in this portion of the implementation, the outer edge 201 is disposed to extend at least partially beyond the common tangent 1010.

By arranging the outer rim 201 to extend at least partially beyond the common tangent 1010, the soft tissue will first contact the outer rim 201 of the second connecting rib 200 instead of the fixing portion 101 of the repeating unit 100 when contacting the edge of the skull-repairing mesh plate 1 of the present utility model, and the irritation of the soft tissue by the skull-repairing mesh plate 1 of the present utility model can be reduced because the smoothness of the outer rim 201 exceeds the fixing portion 101. The outer edge 201 extending out of the common tangent line can ensure that after the second connecting rib 200 is contacted with soft tissues, the second connecting rib 200 can not drive the two fixing parts 101 at the tail ends of the same side of the adjacent repeated arrangement 10 to collapse inwards before the outer edge 201 is pushed into the common tangent line 1010, so that the edge position of the skull repairing net plate 1 has higher structural strength.

Preferably, in addition to the above arrangement, as shown in fig. 1, the second connecting rib 200 is configured such that its inner edge 202 is at least partially within the common tangent 1010. As can be seen from the figure, the second connecting rib 200 thus arranged can substantially cover the common tangent 1010 in the width range thereof, and the second connecting rib 200 can significantly strengthen the structural strength of the edge of the skull repairing net plate 1 of the present utility model.

In some embodiments, as shown in fig. 1, the skull repairing mesh plate 1 of the present utility model is preferably an isosceles triangle formed by connecting three fixing portions 101 of the repeating units 100 end to end. When the three fixing parts 101 of the repeating units 100 are in an equilateral triangle shape, the distances between the fixing parts 101 of each repeating unit 100 are equal, and when the skull repairing net plate 1 is subjected to external force or a large amount of distributed screw fixing force, the design of the equilateral triangle shape ensures that the whole skull repairing net plate 1 is uniformly stressed, is not easy to deform and has good structural stability.

It is to be understood that the skull repairing net plate 1 of the present utility model is not strictly limited to the specific size, material, etc. of the repeating unit 100 of the minimum constituent unit, and those skilled in the art can adjust the specific form of the repeating unit 100 in accordance with actual needs.

For example, the material of the repeating unit 100 should have high biocompatibility because the skull repairing mesh plate 1 needs to be suitable for a human body. At the same time, the repeat unit 100 requires some flexibility to conform to the skull surface. In addition, the repeating unit 100 is required to have a strong material strength so that the skull repairing net plate 1 composed thereof has a capability of resisting deformation. As a specific example, the repeating unit 100 may alternatively be made of titanium and titanium alloys.

As for the specific size selection of the repeating unit 100, the skull repairing net plate 1 of the present utility model is preferably provided with the repeating unit 100 having a thickness of 0.3mm to 0.8mm. Under the selection of the thickness, the skull repairing mesh plate 1 has better bending and shaping in the thickness direction, and the skull repairing mesh plate 1 can be shaped according to different skull shapes of different patients to obtain an integral shape basically consistent with the outline of the skull, so that the skull repairing mesh plate 1 can be used for repairing the defect part of the skull well.

Similarly, the skull repairing mesh plate 1 of the present utility model is not limited to the specific form of the drainage hole 103 surrounded by the three first connecting ribs 102 in the repeating unit 100. For example, the drainage holes 103 may be triangular, circular, rounded triangular, etc., and the shape of the drainage holes 103 of the plurality of repeating units 100 may be the same or different, and may be specifically adjusted according to actual needs by those skilled in the art. The area of the drainage aperture 103 may be set to be generally 10mm ² -25mm ² At this size, the drainage hole 103 can also ensure that the skull repairing net plate 1 of the utility model maintains good structural strength while having good drainage function.

In some embodiments, as shown in fig. 1, the skull repairing mesh plate 1 of the present utility model does not limit the specific dimensions of the first connecting rib 102 and the second connecting rib 200, but the thickness and width of the second connecting rib 200 are preferably the same as those of the first connecting rib 102.

It will be appreciated that the skull repair screen 1 will have a greatly reduced therapeutic effect as a medical product even if it is partially damaged, and therefore the skull repair screen 1 should have integrity. The first connecting ribs 102 and the second connecting ribs 200 are the structural main bodies of the skull repairing net plate 1, the size of the skull repairing net plate determines the integral deformation resistance capability of the skull repairing net plate 1, the thickness of the second connecting ribs 200 is equal to that of the first connecting ribs 102, and the width of the second connecting ribs 200 is equal to that of the first connecting ribs 102, so that the structural strength of the skull repairing net plate 1 is consistent regardless of the middle or the edge, and the integrity of the skull repairing net plate 1 is ensured.

It is obvious that the skull repairing mesh plate 1 of the present utility model is not strictly required as to the form in which the fixing portion 101 is specifically provided. In some embodiments, as shown in fig. 3, the fixing portion 101 includes a fixing portion body 1022 connecting the first connection rib 102/the second connection rib 200, a through hole 1021 penetrating the thickness of the fixing portion body 1022 is provided in the fixing portion body 1022, and a fixing member, such as a screw, may be provided in the through hole 1021.

In some embodiments, as shown in fig. 3, the through hole 1021 is a single-sided counter bore, and the wall of the counter bore may be, for example, a conical surface or an arc surface.

In yet other embodiments, as shown in fig. 4, the through-hole 1021 includes a double-sided counterbore, i.e., the through-hole 1021 is provided with counterbores on both sides in the thickness direction. The arrangement of the double-sided counter bores enables the skull repairing mesh plate 1 of the utility model to be free from distinguishing the directions when in use, and operators can be directly arranged on the skull of a patient no matter which side of the skull repairing mesh plate 1 faces the thickness direction when using the skull repairing mesh plate 1 of the utility model, without distinguishing the front side and the back side of the skull repairing mesh plate 1, thereby further improving the operation efficiency.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The skull repairing mesh plate is characterized by comprising a plurality of rows of repeated units which are continuously arranged, wherein each repeated unit comprises three fixing parts and first connecting ribs which are used for connecting the fixing parts, the three fixing parts are connected end to form an isosceles triangle, and the three first connecting ribs enclose a drainage hole;

in one of the repeated arrangements, adjacent repeated units share the first connecting rib positioned at the waist of the isosceles triangle and the fixing parts at the two ends of the first connecting rib; the adjacent repeated arrangement shares the first connecting ribs and the fixing parts at the bottom edges of a plurality of repeated units;

and the fixing parts of the repeated units which are positioned at the tail ends of the same sides in adjacent repeated arrangement are connected in a smooth transition manner through second connecting ribs.

2. The mesh plate for cranium restoration according to claim 1, wherein the second connection rib is in a convex arc shape away from the fixing part.

3. A mesh plate for cranium repair according to claim 2 wherein said anchoring portions of said repeating units at adjacent ipsilateral ends of said repeating array have a common tangent, said second connecting rib having an inner edge and an outer edge, said outer edge extending at least partially beyond said common tangent, said inner edge being at least partially within said common tangent.

4. A skull repair mesh plate according to claim 1, wherein three of said fixation portions of said repeating units are connected end to end in an equilateral triangle.

5. A skull repair screen according to claim 1 wherein the repeat units have a thickness of 0.3mm to 0.8mm.

6. A skull repair screen according to claim 1 wherein the drainage holes have an area of 10mm ² -25mm ² 。

7. The mesh plate of claim 1, wherein the thickness of the second attachment rib is the same as the thickness of the first attachment rib.

8. The mesh plate of claim 1, wherein the second attachment rib has a width that is the same as the width of the first attachment rib.

9. A skull repair screen according to claim 1 wherein the fixation portion comprises through holes for placement of fasteners.

10. A skull repair screen according to claim 9 wherein the through holes comprise double sided counterbores.

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