TW201325577A - Cage-shaped spinal frame - Google Patents

Abstract

A cage-shaped spinal frame including a base installs a plurality of grooves, with each groove having a plurality of curved sections. A deformation band is formed between two adjacent grooves. The each of the deformation band forms a first base end and a second base end, the first base end and the second base end is near the side of the base to support the deformation of the deformation band. The surface of the base forms plurality of impressions with each impressions locating on the deformation band and near the first base end or the second base end. Thus, any two adjacent deformation bands will keep away from each other to define a filling area when the base is squeezed by external force.

Description

Spine cage

The invention relates to a cage-type stent, in particular to a titanium-based spinal cage-type stent suitable for use in a human spinal lesion for post-operative enhancement of bone tissue healing and stability and for easy shaping.

In recent years, most people have long relied on computer work because of changes in their living habits. They have to sit at their desks for a long time, and with the evolution of an aging society, the current cases of spinal lesions are endless, which is related to subsequent spinal care. The problem is gradually being taken seriously.

The postoperative care of spinal surgery is an important part of the recovery of the spine. Usually, after the operation, the patient recovers slowly than other parts, and can not stand for a long time. Therefore, it is necessary to wear corrective clothes for a long time to avoid daily life. Obstruction.

For this reason, at this stage, spine implant-assisted orthopaedic clothing is often placed, and the spinal implant is placed between the transverse processes of the bone defect site after spinal surgery, and bone filling materials such as calcium phosphate, bone powder, autologous bone, etc. are simultaneously used. Filled in the open space of the spinal implant to accelerate healing of the bone tissue between the transverse processes. However, the soft tissue that grows faster between the transverse processes is often easily invaded from the pores due to the poor structure of the spinal implant, or the autologous bone or bone powder filled in the spinal implant is taken away under the circulation of the body's circulatory system. Traditional spinal implants, even if they have a bone filling that can be used to accelerate healing, are unable to exert the effect of accelerating bone healing after surgery due to the loss of frequent bone filling.

For example, the Patent Document No. M333884 of the Republic of China discloses a modular bone fusion cage 9 having a rounded head 91 in front of the cage 9 and a groove-like space 92 extending longitudinally behind the head 91. The two side walls of the cage 9 are provided with a plurality of bone fusion holes 93 communicating with the groove-shaped space 92, and a fixing seat 94 is further connected to the rear of the cage 9 for binding and fixing to a bone plate holder 95. . The trough space 92 can accommodate the ground autograft bone, allograft bone or other bone fillings such as bone cement and artificial bone. Thereby, the bone filling in the groove-like space 92 can be made to pass through the upper and lower openings of the groove-shaped space 92 to contact the adjacent vertebrae to facilitate the bone fusion.

However, when the conventional bone fusion cage 9 is used, it is necessary to use the bone screw 96 with the bone plate fixer 95 to limit the bone fusion cage 9 to the bone defect portion for support or fixation. Even the above-mentioned conventional bone fusion cage 9 can only be applied between the vertebral bodies, and due to the complicated structure, multiple joint interfaces are generated, and complicated three-dimensional tube laser engraving, electric discharge forming, etc. must be used. It can not only relatively increase the processing difficulty of the bone fusion cage 9 but also has a relative burden on the production cost. In addition, when the spinal surgery is performed, the complicated structure of the bone fusion cage 9 is necessary. The considerable amount of time the medical staff is operating, so that the risk of infection that may exist during the surgical procedure is relatively increased.

In addition, the poor design of the grooved space 92 and the bone fusion hole 93 of the conventional bone fusion cage 9 can not inhibit the rapid soft tissue invasion, and is more likely to exist in the groove space due to the flow of the internal circulation system. The bone filling system within 92 is easily lost from the bone fusion hole 93. Thus, the traditional bone fusion cage 1 can only be used as a support and fixation between the vertebral bodies, and it is completely unable to play the role of guiding tissue regeneration after surgery, so that the process of bone defect reconstruction still cannot achieve a substantial breakthrough. , seriously affect the efficiency of postoperative bone tissue healing.

In view of this, it is indeed necessary to develop a titanium-based spinal cage type stent for enhancing the healing and stability of bone tissue after surgery, so as to be applicable to any part of human spinal lesions, and solve various problems as described above.

The main object of the present invention is to improve the above disadvantages to provide a spinal cage type bracket which can avoid the occurrence of a joint interface in a simple configuration and easily guide the spine cage bracket from a plane to a predetermined three-dimensional shape to reduce Processing difficulties and manufacturing costs, and reduce the variability of each cage cage.

A second object of the present invention is to provide a spinal cage type bracket capable of effectively controlling the range of deformation stress concentration thereof to avoid deformation of the spinal cage type stent due to excessive concentration stress.

Still another object of the present invention is to provide a spinal cage type stent which is capable of inhibiting rapid soft tissue invasion and avoiding the flow of the body circulatory system to remove the bone filling, and ensuring that the bone filling is stabilized therein without loss.

Still another object of the present invention is to provide a spinal cage type stent which can be applied to any part of a human spinal lesion to guide bone tissue regeneration and accelerate bone tissue healing by a bone filler which is stabilized therein.

In order to achieve the foregoing object, the spinal cage type bracket of the present invention comprises a base body, wherein the base system is provided with a plurality of wire grooves, each of the wire grooves has a plurality of curved segments, wherein a deformed branch is formed between any two adjacent wire grooves. Each of the deformation ribs is formed with a first reference end and a second reference end. The first reference end and the second reference end are respectively located at opposite side edges of the adjacent base body for supporting the deformation of the deformation support strip, and The substrate further has a plurality of indentations formed on the surface of the deformation support and located adjacent to the first reference end or the second reference end of the deformation support.

Wherein, any two adjacent line slots divide the deformation support into a reduced diameter area and an expanded diameter area, and a plurality of micro holes are formed in the expanded diameter area of the deformation support strip. Moreover, the pore size of the plurality of micropores is 1 to 3 mm; and the thickness of the matrix is 20 to 200 μm.

Furthermore, the spine cage of the present invention may further comprise a terminating end located at an end of the plurality of wire grooves extending to the side edge of the base body, and the terminating end is a through-shaped geometric microhole. Wherein, the state of the terminating end is a hollow geometric shape of a circle, a rectangle or a square.

Wherein, the number of indentations are concave from the surface of the substrate, and the indentations formed by any two adjacent deformed strips are in the same straight line and parallel to the first reference end or the second reference end of the base body. Moreover, the width of the number of indentations is 0.1 to 0.3 mm. Wherein, the number of indentations are formed on the upper surface and the lower surface of the deformation support strips, and are located on opposite sides of the plurality of plurality of support strips, and the plurality of indentations are respectively staggered and formed on the reduction diameter of the deformation support strips District and expansion area.

The spine cage of the present invention may further comprise a biodegradable polymer film formed on a part of the surface or the entire surface of the substrate.

The spinal cage type of the present invention is characterized in that the curved section of the plurality of wire grooves is divided into a first curved section and a second curved section, and the first curved section and the second curved section are disposed at consecutive intervals, and the first bending is performed. The segments and the second curved segments are curved in a relative shape.

Wherein the reduced diameter zone is located between the first curved section of one of the linear grooves and the second curved section of the other adjacent linear groove, and the expanded diameter zone is located adjacent to the second curved section of one of the linear grooves Between the first curved segments of the wire trough.

Herein, any two adjacent wire grooves are formed in a circular pattern in a continuous pattern, and the expanded diameter region of the deformation branch correspondingly forms a plurality of micropores of concentric circles. Alternatively, any two adjacent line grooves are collectively circled to form a continuous pattern of the eye shape, and the expanded diameter region of the deformation branch corresponds to a plurality of micro holes forming an eye shape. Furthermore, any two adjacent line grooves are formed in a circular pattern in a continuous pattern, and the plurality of micropores corresponding to the concentric circles and the plurality of long strips are formed in the expanded diameter region of the deformed strip. Micropores, and the concentric circular micropores are spaced apart from the elongated micropores.

The spine cage bracket of the present invention may further select the first curved section and the second curved section in which the plurality of linear grooves are continuously spaced, the first curved section is in an S-shaped curved state, and the second curved section is Curved curved shape.

In the above, any two adjacent line groove systems form a circular and S-shaped continuous pattern pattern, and the S-shaped pattern forms the reduced diameter area of the deformation support strip, and the circular pattern is An enlarged diameter region of the deformation support strip is formed, and the expanded diameter region of the deformation support strip corresponds to a plurality of micropores forming a concentric circle.

In addition, the plurality of slots of the spine cage bracket of the present invention have a first curved section and a second curved section which are continuously spaced apart, and the first curved section and the second curved section are both a straight line segment and an arc line. The segments are connected in series, and any two adjacent line grooves are formed in a circle to form a continuous pattern of diamonds. Wherein, the expanded diameter zone of the deformed strip corresponds to a plurality of micropores forming an elliptical shape.

Alternatively, the plurality of wire grooves have a first curved segment and a second curved segment which are continuously spaced apart, and the first curved segment and the second curved segment are formed by connecting two straight segments and two arc segments, and Two adjacent wire troughs form a continuous pattern of rectangles in a common circle. Wherein, the expanded diameter zone of the deformation support strip corresponds to a plurality of micropores forming an oblong shape.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIG. 2, which is a preferred embodiment of the present invention, the spine cage bracket is made of a base 1 made of pure titanium metal or titanium alloy, and the thickness of the base 1 is preferably 20~200 microns, in order to achieve the effect of shaping the spinal cage stent during the operation. The spine cage bracket described below is called the 〝 matrix.

The base body 1 is provided with a plurality of wire grooves 11 having a plurality of curved segments 111. Wherein, the curved section 111 of the plurality of troughs 11 can be selected as arcs of different curvatures or the same curvature, and are arranged at intervals in a relatively or adjacent manner to present a repeating or non-repetitive complex trough. The aspect of the curved section 111 of 11. Here, only the variation of the curved section 111 of the plurality of wire grooves 11 is roughly explained, and the shape of the curved section 111 of the plurality of wire grooves 11 of the preferred embodiment of the present invention is selected in a continuously arranged and relatively curved shape. For other descriptions of the variation of the curved section 111 of the plurality of trunkings 11, please refer to the fourth to sixth figures for further details.

In this embodiment, the curved section 111 of the plurality of linear grooves 11 is divided into a first curved section 111a and a second curved section 111b, and the first curved section 111a and the second curved section 111b are arranged at consecutive intervals. The first curved section 111a and the second curved section 111b are preferably formed in a curved shape [that is, the first curved section 111a and the second curved section 111b are connected to form a S shape as shown in FIG. 2] Moreover, the plurality of linear grooves 11 preferably extend from one side edge of the base body 1 to the other opposite side edge of the base body 1 [ie, as shown in FIG. 2, the left side edge of the base body 1 extends in the Y direction to the base body. The right edge of 1 is, and the end of the plurality of wire grooves 11 and the side edge of the base 1 have an appropriate spacing.

Referring to Figures 2 and 3, a deformed struts 12 are formed between any two adjacent slots 11 to allow any two adjacent deformations when the base 1 is pressed by a force in the Y direction. The struts 12 can be separated from each other in the Z direction and deformed into a three-dimensional shape to directly form the base body 1 into a hollow cage shape [as shown in FIG. 3], and the formed base body 1 is formed. There is no interface for any joints. In this embodiment, any two adjacent slots 11 divide the deformation support 12 into a reduced diameter area 121 and an expanded diameter area 122, and the reduced diameter area 121 is located at the first of the one of the linear slots 11 The curved section 111a is located between the second curved section 111b of the adjacent adjacent groove 11 [that is, the smaller side of the surface of the deformed strip 12 is surrounded by the surface of the base 1], and the expanded section 122 is located The second curved section 111b of one of the linear grooves 11 is opposite to the first curved section 111a of the other adjacent linear groove 11 [that is, the two sides of the deformed support 12 are surrounded by a larger section of the surface of the base 1]. The diameter reducing area 121 and the diameter expanding area 122 can be arranged in a continuous interval according to the curved section 111 of the plurality of line slots 11.

In addition, the deformation support 12 is further formed with a first reference end 123 and a second reference end 124. The first reference end 123 and the second reference end 124 are respectively located at opposite side edges of the adjacent base body 1 [ie, The left and right edges, as shown in Fig. 2, serve as a separation criterion for the deformation of the deformed strip 12 from the base 1. In other words, there is a proper spacing between the deformed struts 12 and the opposite side edges of the base 1 such that the deformable struts 12 are contiguous with the opposite side edges of the base 1 [ie, as shown in FIG. 2 The side edges of the base body 1 extending in the X direction are formed to form the first reference end 123 and the second reference end 124, respectively. Thereby, the deformation support 12 can be partially connected to the base body 1 , and even if the deformation support 12 and the base body 1 are incompletely divided, the deformation support 12 can be simultaneously from the first reference end 123 . The second reference end 124 is detached from the two-dimensional plane to a three-dimensional shape, so that the base body 1 exhibits a better hollow cage shape, and the bone filler can be filled therein.

Furthermore, the base body 1 is further provided with a plurality of indentations 13 formed on the surface of the deformation support strip 12 and located at a predetermined deformation of the deformation support strip 122. In this example, the number of indentations The 13 series is formed adjacent to the side edge of the base body 1, in particular, the first reference end 123 and the second reference end 124 formed adjacent to the number of deformation support strips 12. The number of indentations 13 can be selectively formed on the upper or lower surface of the deformation support 12 [meaning that it can be formed on one or both sides of the base 1], or can alternatively be formed adjacent to the deformation support 12 The opposite side edges of the base 1 [meaning that it can be formed on one or both sides of the plurality of struts 12]. Wherein, the number of indentations 13 are concavely formed by the surface of the substrate 1 , and the width of the plurality of indentations 13 is preferably 0.1 to 0.3 mm, so as to guide the deformation of the support strip 12 for easy up and down support. The better effect.

In this embodiment, the number of indentations 13 are selectively formed on the upper and lower surfaces of the deformation support 12, and are located at the opposite side edges of the plurality of bases 12 adjacent to the base 1 [meaning the plurality of branches The left and right sides of the strip 12], and the number of indentations 13 are preferably alternately formed in the reduced diameter region 121 and the expanded diameter region 122 of the deformed strip 12, respectively. In particular, as shown in Fig. 2, the indentation 13 [i.e., the indentation 13a formed on the upper surface of the substrate 1] is preferably formed in the enlarged diameter region 122 of one of the deformed branches 12, and the other indentation 13 [ That is, the indentation 13b formed on the lower surface of the substrate 1 is formed on the reduced diameter region 121 of the other adjacent deformation support 12, and the indentations 13a, 13b are parallel to the first reference end 123 and the second reference end. 124. In short, the concave opening direction of the number of indentations 13 is opposite to the deformation deformation direction of the deformation support 12, as shown in FIG. 3, the three deformation branches 12a, 12b and 12 are formed as an example. The deformation support strips 12a, 12c are deformed toward the Z direction of the base body 1, and the indentation 13a is formed on the upper surface of the deformation support strips 12a, 12c (as shown in the plurality of support strips 12) The expanded diameter region 122], and the concave opening direction of the indentation 13a is also disposed in the Z direction of the base body 1; otherwise, the deformed support strip 12b is deformed to be deformed in the Z' direction of the base body 1, and the indentation is 13b is formed on the lower surface of the deformation support 12b [as shown in the reduced diameter section 121 of the plurality of strips 12], and the concave opening direction of the indentation 13b is also disposed in the Z' direction of the base 1 . Thereby, the enthalpy can concentrate the deformation stress on the indentation 13 and separate the deformation struts 12 in a predetermined direction, so that the deformation struts 12 can be in a better expanded state.

It is to be noted that the above description only discloses an embodiment thereof, and the concave opening direction of the indentation 13 should be fixed when the indentation 13 is formed on the reduced diameter region 121 or the enlarged diameter region 122 of the deformation support 12 . Towards the base 1 above or below [ie, the Z direction or the Z' direction], those skilled in the art can easily understand and apply them according to the above principles, and will not be described one by one.

Furthermore, the spine cage of the present invention may further be provided with a plurality of micropores 2, and the plurality of micropores 2 are formed in a penetrating manner on the surface of the substrate 1 such that the upper and lower surfaces of the substrate 1 are in communication. In detail, the plurality of micropores 2 are formed in the enlarged diameter region 122 of the deformed support strip 12, preferably in the form of the curved section 111 of any two adjacent linear slots 11, and the adjacent two adjacent slots The curved segments 111 of 11 assume a mutually corresponding pattern. For example, when any two adjacent trunkings 11 are formed in a circular pattern, a plurality of micropores 2 like a circular circle can be formed in the expanded diameter region 122 of the deformed strip 12 . In this embodiment, the pore size of the plurality of micropores 2 can be selected from 0.5 to 3.5 mm, in particular, a plurality of micropores 2 selected from 1 to 3 mm to reduce the weight of the substrate 1 and increase the thickness of the substrate 1. Flexibility and reduced interference caused by X-ray exposure. The shape of the plurality of micropores 2 can be matched with the curved segments 111 of any two adjacent troughs 11, and the variation of the plurality of micropores 2 will be described later together with the fourth to eighth figures.

In addition, the spine cage of the present invention may further form a biodegradable polymer film 3 on the surface of the substrate 1 (see FIG. 7 for details), and the biodegradable polymer film 3 may be formed on the substrate. Part 1 or full surface. In the present embodiment, the biodegradable polymer film 3 is preferably formed only on a part of the surface of the substrate 1 that is not in contact with the bone wound [that is, the surface of the deformed support 12 on the same side]. The biodegradable polymer film 3 blocks the soft tissue intrusion, and at the same time, the part of the biodegradable polymer film 3 is not formed to contact the bone wound to induce the growth of the bone tissue through the bone filler, thereby accelerating the regeneration of the bone tissue. efficacy. Among them, the biodegradable polymer film 3 can be selected from materials such as collagen, chitosan, animal gum or hyaluronic acid.

In view of the above, the vertebral cage type stent of the present invention can be produced in any manner under the above-mentioned principles. Here, only the preferred embodiment of the present invention is exemplified, and the forming process of the vertebral cage type stent is briefly described as follows:

Referring to Figures 2 and 3, a titanium foil having a thickness of 50 μm is selected as the substrate 1 to form a plurality of wire grooves 11 on the surface of the titanium foil, and the curved portion 111 of the plurality of wire grooves 11 is formed. The design is relatively curved, and any two adjacent slots 11 can be circled to form a pattern such as a circle or a diamond, and at the same time, a hole diameter of 2 mm is formed in the enlarged diameter region 122 of the deformation strip 12 The plurality of micropores 2 are arranged together as an array of titanium meshes by the deformed struts 12 formed between any two adjacent troughs 11 [as in the two-dimensional planar view shown in FIG. 2, the preferred embodiment is only Taking the three deformation support strips as an example, the following are referred to as 〝12a, 12b, and 12c〞 respectively, and at the same time, the indentation 13 having a diameter of 0.2 mm is formed at the end of the deformation support strip 12 by laser processing, in particular, forming On the left and right corresponding sides of the deformation support 12, and the concave openings 13 formed on the upper and lower surfaces of the base body 1 are in different directions; finally, the formed array titanium mesh is immersed in 37%. The hydrochloric acid is continued for 30 minutes to make the surface roughness of the titanium foil less than 1.5 micrometers, and the preparation of the spinal cage type stent of the present invention is completed. .

When it is required to be used, an external force is applied along the direction of the arrow shown in FIG. 3 [that is, the Y direction of the base body 1) so as to be pressed inwardly from the opposite side edges of the base body 1 so that the two-dimensional plane The array of titanium meshes (i.e., the deformed struts 12a, 12b, and 12c shown in Fig. 2) can be easily separated and immediately converted into a three-dimensional hollow cage. The deformation support strips 12a and 12c are supported by the first reference end 123 and the second reference end 124, and the deformation stress is concentrated on the indentation 13a to support the concave opening of the indentation 13a. Starting to push the deformation in the Z direction of the base body 1 (ie, above the drawing); on the other hand, the deformation support 12b is supported by the first reference end 123 and the second reference end 124, and the same The deformation stress is concentrated on the indentation 13b to be propped up along the concave opening direction of the indentation 13b, and is deformed toward the Z' direction of the base 1 [ie, below the drawing], thereby being The deformation support strips 12a, 12b and 12c are deformed and expanded to enclose a filling space S [detailed in the three-dimensional three-dimensional aspect shown in FIG. 3] to complete the spine cage bracket of the present invention in practical use. Implementation.

It should be noted that the above description is only in the simplest form, so the length of the spinal cage bracket [meaning the number of arrays of the deformation support 12 on the base 1] can be determined according to requirements under the same principle. In particular, it is preferable to be able to conform to the thickness of 2 to 3 vertebral vertebrae, and also under the external force extrusion, the two adjacent deformational branches 12 as shown in Fig. 3 are in the form of upper and lower interlaced deformations. That is, those who are familiar with the art can easily think about and apply according to the above principles, and will not be described one by one.

Since any two adjacent deformed struts 12 of the base body 1 are separated from each other in different directions to enclose the filling space S, the plurality of deformed struts 12 located on the same side of the filling space S are arranged at intervals to form at least one The gap G, the shape of the gap G is equivalent to the shape of a deformed strip 12. When in use, the bone filling material accommodated in the filling space S is in contact with the bone tissue by the gap G. Therefore, the diameter of the enlarged diameter region 122 should be smaller than the size of the bone filling material, and the diameter expanding region 122 is appropriate. The diameter is selected to be 1.5-4.5 mm, preferably 2-4 mm, so that the bone filling does not escape through the gap G, so as to achieve a better effect of limiting the movement space of the bone filling, and The bone filling material can contact the bone tissue from the gap G, thereby accelerating the efficiency of bone tissue regeneration healing.

In addition to the above, the spine cage bracket of the present invention may also select a plurality of wire grooves 11 formed with different curved segments 111 to transmit the curved portion 111 of the plurality of wire grooves 11 to increase the deformation after deformation. The smoothness of the struts 12, thereby avoiding torsional breakage and damage caused by the angular design, at the same time, to enhance the support strength of the deformed struts 12 after deformation.

Please refer to the figures 4 to 6 for a schematic diagram of a plurality of linear grooves 11 having different curved segments 111 and a plurality of micropores 2 of different states, which are briefly described as follows:

As shown in FIG. 4, the plurality of wire grooves 11 have a first curved segment 111a and a second curved segment 111b which are disposed at intervals and are relatively curved, and any two adjacent wire grooves 11 are formed in a circle such as an eye. a continuous pattern of a shape [corresponding to an ellipse], and corresponding to the expanded portion 122 formed by the second curved portion 111b of the first groove 11 and the first curved portion 111a of the adjacent adjacent groove 11 a plurality of micropores 2 similar to an eye shape; or, as shown in FIG. 5, the plurality of linear grooves 11 have a first curved section 111a and a second curved section 111b which are disposed at intervals and are relatively curved, and wherein Any two adjacent wire grooves 11 are formed in a continuous pattern such as a circular circle, and formed in the second curved portion 111b of one of the linear grooves 11 and the first curved portion 111a of the other adjacent wire groove 11. In the expanded diameter region 122, a plurality of micropores 2 similar to a circle, and a plurality of micropores 2 having a long strip shape, and the circular micropores are arranged in a spaced relationship with the elongated micropores; In addition, as shown in FIG. 6, the plurality of wire grooves 11 have a first curved segment 111a and a second curved segment 111b which are continuously spaced apart, The first curved section 111a is in an S-shaped curved state, and the second curved section 111b is in an arc-shaped curved state, and any two adjacent linear grooves 11 are collectively circled to form a continuous figure such as a circle and an S-shape. The pattern 11 is formed in the enlarged diameter region 122 formed by any two adjacent slots 11 correspondingly with a plurality of micropores 2 similar to a circle, wherein the S-shaped pattern forms the deformation branch 12 The diameter reducing area 121 is formed, and the enlarged area 122 of the deformation branch 12 is formed at the circular pattern. In addition to the above, as shown in FIG. 7, the plurality of wire grooves 11 have a first curved segment 111a and a second curved segment 111b which are continuously spaced apart, and the first curved segment 111a and the second curved segment 111b are particularly The line segment is connected with an arc segment, and any two adjacent wire grooves 11 are formed in a continuous pattern such as a diamond shape, and the second curved portion 111b of the one groove 11 and the other An enlarged diameter region 122 formed by the first curved portion 111a of an adjacent wire groove 11 is correspondingly matched with a plurality of micropores 2 similar to an elliptical shape; and further, as shown in FIG. 11 is also provided with a first curved section 111a and a second curved section 111b which are arranged at intervals. The first curved section 111a and the second curved section 111b are formed by connecting two straight segments and two arc segments, and any of them Two adjacent troughs 11 are formed in a continuous pattern such as a rectangular pattern, and are formed by the second curved section 111b of one of the linear grooves 11 and the first curved section 111a of the other adjacent linear groove 11. In the radial region 122, a plurality of micropores 2 similar to an oblong shape are associated with each other.

The above is a description of the various embodiments of the present invention, and the principles of the present invention are similar to those of the preferred embodiments of the present invention, and those skilled in the art can readily appreciate the above detailed description. And apply it, and will not be described in detail here.

Referring to FIG. 9 , when the spinal cage stent of the present invention is actually used and surgically placed on the bone wound, the bone filling material is first placed in the filling space S formed by the deformation of the spinal cage stent. [meaning a hollow cage-type substrate 1 that is converted from a two-dimensional plane into a three-dimensional plane, hereinafter referred to as a vertebral cage-type stent 〞], and then sutures the spinal cage-type stent of the present invention with a surgical thread and is fixed to the bone wound. The part, especially as shown in the figure, is directly placed between the spinous process 41 and the transverse process 42 connected to the vertebral body 4, and the operation of the spinal cage type stent of the present invention can be completed without the strong locking of the bone nail. .

In addition to the above, please refer to the 10th and 11th drawings, which is another preferred embodiment of the present invention. In this embodiment, the spinal cage type bracket may further be provided with a terminating end 14, which is terminated. The end 14 is located at the end of the wire groove 11 extending to the side edge of the base body 1 [that is, at the end of the wire groove 11], and the terminating end 14 is a through-shaped geometric micro hole. Therefore, when the deformation support 12 is subjected to the extrusion deformation, the deformation stress of the deformation support 12 easily extends along the end of the groove 11 endlessly, and the groove 11 is cracked at the end. Even extending to the side edge of the base 1 causes the deformation of the deformation support 12 to break. Wherein, the terminating end 14 is integrally formed on the end of the wire groove 11, preferably formed at two corresponding ends of the plurality of wire grooves 11 respectively [ie, the wire groove 11 as shown in FIG. 7 left and right two The end state, and the state of the terminating end 14 can be selected as a circular, rectangular, square, etc., any of the geometric shapes.

The main feature of the vertebral cage type bracket of the present invention is that a plurality of wire grooves 11 are provided on the surface of the base body 1, and a deformed struts 12 are formed between any two adjacent wire grooves 11 and the deformation struts 12 are formed. It can be easily deformed from the two-dimensional plane shape to the three-dimensional shape along the two adjacent line grooves 11 under appropriate external force extrusion, and at the same time, the deformation stress generated by the external force of the deformation support strip 12 can be concentrated. The indentation 13 is further guided through the indentation 13 to guide the deformation of the deformation support 12 in an up-and-down manner, so as to directly form the base body 1 into a hollow cage shape, ensuring each cage. The stents have the same unfolded shape, and the effect of reducing the variation of each of the spinal cages is achieved; even, the formed matrix 1 does not have any joint interface, and the joint interface is not generated for a long time. The base body 1 is loosened, and the hollow cage shape is broken, and can be further disposed through the terminating end 14 of the plurality of wire grooves 11 to exert a buffering action at the terminating end 14 to disperse the deformation of the deformed support bar 12 Stress, to avoid this The shape of the strip 12 is damaged and broken at the end; in addition, the curvature of the curved section 111 of the plurality of slots 11 can be designed to increase the smoothness of the deformed strip 12 after deformation, thereby avoiding other angles. The design causes the torsional fracture and damage, and simultaneously increases the support strength of the deformation of the deformation support 12, and increases the stability of the overall spinal cage.

In this way, not only the processing difficulty of the spine cage stent manufacturing process can be reduced, but also the spine cage bracket can be easily guided from a plane to a predetermined three-dimensional state, and the range of deformation stress concentration can be effectively controlled to avoid deformation of the spinal cage bracket. In the process, a fracture occurs due to excessive concentration of deformation stress. Even the aperture design of the plurality of micropores 2 reduces the weight of the substrate 1, increases the flexibility of the substrate 1, and reduces interference caused by X-ray irradiation, and is supplemented by the biodegradable polymer film 3, At the same time, the invasion of the external soft tissue is blocked, and the bone tissue has a good regeneration space; at the same time, the bone filling filled in the spinal cage can contact the bone tissue from the gap G to penetrate the bone filler. Induces the growth of bone tissue, thereby accelerating the efficiency of bone tissue regeneration and healing.

In summary, the spine cage bracket of the present invention can avoid the occurrence of the joint interface in a simple configuration, can reduce the processing difficulty and the manufacturing cost of the spinal cage bracket, and easily guide the spine cage bracket from the plane deformation to The established stereotype is used to reduce the variability of each spinal cage stent. Furthermore, the spine cage stent of the present invention can more effectively control the range of deformation stress concentration, and at the same time, in the deformation process of the spine cage stent, the effect of avoiding excessive stress concentration and fracture is achieved. In addition, the spine cage stent of the present invention is more capable of inhibiting the rapid growth of soft tissue invasion, and avoids the flow of the circulation system in the body to take the bone filler, thereby achieving the effect of ensuring that the bone filler is stabilized therein without loss. In addition, the vertebral cage type stent of the present invention can also be applied to any part of the human spinal lesion to achieve the effect of guiding bone tissue regeneration and accelerating bone tissue healing by the bone filling material stabilized therein.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . Matrix

11. . . Trunking

111. . . Curved section

111a. . . First curved section

111b. . . Second curved section

12, 12a, 12b, 12c. . . Deformation support

121. . . Reduced area

122. . . Expansion zone

123. . . First reference

124. . . Second reference

13, 13a, 13b. . . Indentation

14. . . Termination end

2. . . Microporous

S. . . Fill the space

3. . . Biodegradable polymer film

4. . . Vertebral body

41. . . Spinous process

42. . . Transverse process

G. . . Void

[知知]

9. . . Vertebral cage

91. . . head

92. . . Trough space

93. . . Bone fusion hole

94. . . Fixed seat

95. . . Bone plate holder

Figure 1: A schematic view of a conventional bone fusion cage.

Fig. 2 is a two-dimensional plan view of the spinal cage type stent of the present invention.

Fig. 3 is a three-dimensional perspective view of the spinal cage type stent of the present invention.

Fig. 4 is a schematic view showing the different patterns of the ridge cage type of the present invention.

Figure 5: Schematic diagram of different patterns of the cage cage of the present invention.

Figure 6: Schematic diagram 3 of different patterns of the cage cage of the present invention.

Figure 7: Schematic diagram 4 of different patterns of the cage cage of the present invention.

Figure 8: Schematic diagram 5 of different patterns of the cage cage of the present invention.

Figure 9 is a schematic view showing the use of the spinal cage type stent of the present invention.

Figure 10 is a schematic illustration of another two dimensional plane of the spinal cage of the present invention.

Figure 11 is another three dimensional perspective view of the spinal cage of the present invention.

1. . . Matrix

11. . . Trunking

111. . . Curved section

111a. . . First curved section

111b. . . Second curved section

12, 12a, 12b, 12c. . . Deformation support

121. . . Reduced area

122. . . Expansion zone

123. . . First reference

124. . . Second reference

13, 13a, 13b. . . Indentation

2. . . Microporous

Claims (18)

A spinal cage type stent comprises a base body, wherein the base body is provided with a plurality of wire grooves, each wire groove has a plurality of curved segments, wherein a deformed support bar is formed between any two adjacent wire grooves, and each deformation support bar is formed with a first shape a reference end and a second reference end, the first reference end and the second reference end are respectively located at opposite side edges of the adjacent base body for supporting deformation of the deformation support strip, and the base body further has a plurality of indentations, each An indentation is formed on the surface of the deformation support and is located at a predetermined deformation of the deformation support. The spine cage bracket according to claim 1, wherein any two adjacent trunkings divide the deformation branch into a reduced diameter zone and an expanded diameter zone, and the expanded zone of the deformation support zone The system is provided with a plurality of micropores. The spinal cage type bracket according to claim 1, wherein a termination end is disposed at an end portion of the plurality of wire grooves extending to a side edge of the base body, and the termination end is a penetrating geometry. Micropores. The spinal cage type bracket of claim 2, wherein a termination end is further disposed at an end of the plurality of wire grooves extending to a side edge of the base body, and the termination end is a penetrating geometry Micropores. The spinal cage stent of claim 1, wherein the number of indentations are concave from the surface of the substrate, and the plurality of indentations are parallel to the deformation support A reference or second reference. The spine cage bracket according to claim 2 or 4, wherein the number of indentations is formed on the upper surface and the lower surface of the deformed support strip, and is located on opposite sides of the plurality of plurality of strips, and the number is The indentations are respectively staggered in the reduced diameter zone and the expanded diameter zone of the deformed support strips. The spinal cage type stent of claim 1, wherein the thickness of the matrix is 20 to 200 micrometers, and the width of the number of indentations is 0.1 to 0.3 mm. The spinal cage stent of claim 2, wherein the plurality of micropores have a pore size of 1 to 3 mm. The spinal cage type stent according to claim 1, 2, 3 or 4, wherein a biodegradable polymer film is formed on a part of the surface or the entire surface of the substrate. The spinal cage bracket of claim 2, wherein the curved section of the plurality of trunking is divided into a first curved section and a second curved section, the first curved section and the second curved section. The first curved segment and the second curved segment are arranged in a continuous arc shape. The spinal cage type bracket of claim 10, wherein the reduced diameter zone is located between a first curved section of one of the linear grooves and a second curved section of another adjacent linear groove, and the expanded diameter zone is The second curved section of one of the slots is between the first curved section of the other adjacent slot. The spine cage type bracket according to claim 11, wherein any two adjacent line groove systems form a circular continuous pattern pattern, and the expanded diameter region of the deformation support strip is correspondingly formed into a concentric shape. A circular number of micropores. The vertebral cage type bracket according to claim 11, wherein any two adjacent line groove systems form a continuous pattern of the eye shape, and the expanded diameter zone of the deformation support branch forms an eye. A plurality of micropores. The spine cage type bracket according to claim 11, wherein any two adjacent line groove systems form a circular continuous pattern pattern, and the expanded diameter region of the deformation support strip is correspondingly formed into a concentric shape. The plurality of circular micropores and the plurality of micropores of the long strip shape are formed, and the concentric circular micropores are spaced apart from the elongated micropores. The spinal cage type bracket of claim 2, wherein the plurality of wire grooves have a first curved section and a second curved section which are continuously spaced apart, and the first curved section has an S-shaped curved shape. The second curved section has an arcuate curved shape. The spine cage bracket according to claim 15 , wherein any two adjacent trunking systems form a circular and S-shaped continuous pattern, and the S-shaped pattern forms the deformation support. The diameter-reducing area, and the circular pattern is formed at the enlarged diameter area of the deformation support strip, and the expanded diameter area of the deformation support strip corresponds to a plurality of micro-holes forming a concentric circle. The spinal cage type bracket of claim 2, wherein the plurality of wire grooves have a first curved section and a second curved section which are continuously spaced apart, and the first curved section and the second curved section are both The line segment is connected with an arc segment, and any two adjacent wire grooves are formed in a circle to form a continuous pattern of diamonds, and the expanded diameter region of the deformation branch corresponds to a plurality of micro-shapes. hole. The spinal cage type bracket of claim 2, wherein the plurality of wire grooves have a first curved section and a second curved section which are continuously spaced apart, and the first curved section and the second curved section are both The two straight line segments are connected with the two arc segments, and any two adjacent wire grooves are formed in a circle to form a continuous pattern of rectangles, and the expanded diameter region of the deformed strips is formed into an oblong shape. Multiple micropores.