TWI703954B - Spinal interbody implant device with integral spinal stress guidance and dispersion - Google Patents

Abstract

A spinal intervertebral implant device with integral spinal stress guidance and dispersion, which is characterized in that the device is implanted in a position of a human intervertebral disc, and the device is a shock-absorbing and buffering bracket of approximately square three-dimensional shape, with Each of the four sides has one side post, and the side posts are respectively connected by one end of one or more ribs, and the other end of the ribs is connected together with a force guide to form the side posts on the periphery. The ribs are connected, and the force guide is located in the middle of the whole. The force guide is not directly connected with the side columns, but indirectly connected by the ribs; the vertebral bodies are respectively or simultaneously connected to the sides The columns exert various forces, and the side columns are connected to the ribs, and the ribs are connected to the force guide together, so that the various forces of the vertebral bodies received by the side columns pass through the ribs. The column is evenly distributed and transmitted to the force guide, and the force guide transmits the various forces to the other side columns evenly through the other ribs, and the shock-absorbing and cushioning bracket is subjected to the aforementioned various forces. In order to generate the overall micro-deformation, the relative stress is buffered and dispersed and the aforementioned various forces are offset.

Description

A spinal interbody implant device with integral spinal stress guidance and dispersion Set

The present invention relates to a spinal interbody implant device with integral spinal stress guidance and dispersion. It is characterized in that it has various forces of the spinal vertebrae received by the side columns through the connected ribs. The column is evenly distributed and transmitted to the force guide, and the force guide is evenly distributed and transmitted to the other side columns through the other ribs, and the shock-absorbing and buffering bracket bears the aforementioned various forces, Due to the elasticity of the material and the design of the shape, an integral micro-deformation method is generated to buffer and disperse the relative stress and offset the aforementioned various forces.

Known spine diseases, except for spine injuries caused by car accidents and fractures, and complete resection of vertebral bodies caused by cancer cell erosion, the rest are mainly due to the age, wear and tear of the intervertebral discs between the vertebral body and the vertebral body. The cause is degeneration or aging, loss of elasticity, resulting in natural intervertebral separation distance changes and intervertebral disc herniation, which makes the spinal nerves compressed, resulting in limb numbness or pain, which is clinically called degenerative spinal neuropathy.

The traditional medical method for the treatment of degenerative spinal neuropathy described in the previous paragraph is to surgically remove the entire degenerated or aging human body’s natural intervertebral disc tissue. Place one or more artificial medical implants to support the intervertebral disc space, which is commonly known as artificial vertebral vertebral cage, or artificial vertebral intervertebral filling block, Spacer. A few have Artificial disc is implanted to fill the space created by the removal of the original intervertebral disc. It is a spinal surgery treatment method.

However, the various artificial spine implants known as Cage, Spacer or Artificial disc, etc., for the Cage implant used in the largest operation, are usually designed in a block shape with one or more hollows in the middle, and a peripheral edge. It is made of a structure surrounded by a whole piece. If the latest medical engineering computer technology is used for simulation in the laboratory, the traditional artificial implant Cage will lack the functional design that can uniformly distribute the guide buffer. When the spine or the upper and lower vertebral bodies contacted by the artificial implant are applied (produced) various forces such as downward pressure, torsion, extension or shear to the artificial implant, the conduction or distribution of the various forces The line will immediately and obviously produce the phenomenon of red concentration passing through the hot zone, or the concentration of power concentration hotspots, which will cause the upper and lower vertebral bodies contacted by the artificial implant, and even the entire spine spine. Stress concentration causes damage to the vertebral body and loses the original setting and function of the intervertebral artificial implant to support the intervertebral disc space.

For example, taking the artificial spine intervertebral implant shown in Figures 1a and 1b, its overall shape presents a "I" shape, with an upper and lower "receiving disc" that directly contacts the upper and lower vertebral bodies, and The upper and lower "receiving plate" is a hollow cylindrical body that directly connects the upper and lower receiving plates.

As mentioned in the previous paragraph, if such a receiving plate directly contacts the upper and lower vertebral bodies, a hollow column is used to directly connect the upper and lower receiving plates without any buffering design between the hollow columns. The current latest medical engineering computer simulation, the various The pressure, torsion, extension or shear force generated by the spine is very likely to pass through the hollow column obviously and concentratedly, and on the upper and lower bearing discs, a concentration point of stress concentration will be generated, and the bearing The disc does not have a design to buffer the stress of the spine. Instead, it will cause a strong and concentrated reaction force to be applied to the upper and lower vertebral bodies that it contacts, causing damage to the upper and lower vertebral bodies.

The invention is to design a spinal interbody implant device with integral spinal stress guidance and dispersion. In order to solve the problem of the traditional intervertebral implant spine stress concentration cannot disperse guidance and cushioning, the key lies in how to evenly and disperse the various vertebral stress forces that the artificial implant bears, and how to use the intermediate It has a design of force guides to guide the transmission and buffering of these forces evenly and dispersedly, and a shock-absorbing and buffering bracket to withstand the aforementioned various forces and produce overall slight deformation due to the elastic characteristics of the material used in the present invention This way, the relative stress is buffered and dispersed and offset the aforementioned various forces, and there is also a space that can be elastically supported, and it can be filled with autologous bone and artificial bone substitutes, which can stimulate the fusion and growth of bone cells and fusion in bone During this period, the original vertebral body will not sink or even cause damage to the vertebral bodies. Instead, a new adaptation "spine interbody implant device with integral spinal stress guidance and dispersion" is invented. To improve many of the aforementioned problems.

Therefore, a simple device for solving the aforementioned problems is a spinal interbody implant device with integral spinal stress guidance and dispersion. It is characterized in that the device is implanted in a human intervertebral disc position, and the device is an approximate square. A three-dimensional shock-absorbing and buffering bracket with four sides and each side column. The side columns are respectively connected by one end of one or more ribs, and the other ends of the ribs are connected together with a force guide to form The side posts are on the periphery and are connected by the ribs. The force guide is located in the middle of the whole. The force guide is not directly connected with the side posts, but is indirectly connected by the ribs; the spine The vertebral bodies apply various forces to the side posts separately or at the same time. The side posts are connected to the ribs, and the ribs are connected to the force guide, so that the spine accepted by the side posts The various forces of the vertebral body are evenly distributed and transmitted to the force guide through the ribs, and the force guide is evenly distributed and transmitted to the other side posts through the other ribs, and the The shock-absorbing and cushioning bracket bears the aforementioned various forces, and due to the elasticity of the material, it generates an overall micro-deformation method, which buffers and disperses the relative stress and offsets the aforementioned various forces.

Therefore, one object of the present invention is to provide a spinal interbody implant device with integral spinal stress guidance and dispersion.

Another object of the present invention is to provide a shock-absorbing and buffering support for the device which is approximately square and has four sides and each side column, and the side columns are respectively connected by one or more ribs at one end, and The other ends of the ribs are connected together with a force guide to form the side posts on the periphery and connected by the ribs. The force guide is located in the middle of the whole, and the force guide is not directly connected to the side posts. The connection is an intervertebral implant device with integral spinal stress guidance and dispersion through the indirect connection of the ribs.

Another object of the present invention is to provide a device that further has: an approximately square three-dimensionally formed shock-absorbing and buffering support, a plurality of side plates, a plurality of back plates and a plurality of perforated cover plates; the elasticity between each element The seams can be connected to form a full-circle buffer elastic seam, and an expansion margin is formed, which is the natural expansion and contraction direction when standing with the human body; each of the forces generated by the vertebral body in contact with the device can be The gap between the expansion and contraction margins of the buffer elastic seam is reduced or expanded, and the ribs are used to evenly distribute and transmit the force, and pass through the force guide to flatten All are dispersed to other ribs, and the relative stress is buffered, dispersed and counteracted by an integral micro-deformation method. An integral spinal stress guide and dispersion intervertebral implant device.

Another object of the present invention is to provide a side post on the periphery of the device, respectively located in front, back, left, right, up, and down of the intermediate force guide, and each side post is on the same horizontal plane or the same vertical plane. The other two side posts have a gap between them, and an elastic seam is formed with a margin of expansion and contraction, so that various forces that the device bears can be reduced or expanded by the gap between the expansion margins, and the ribs can reduce the various forces. Evenly disperse and conduct, and evenly disperse to other ribs and side columns through the force guide, to achieve cushioning, dispersion and offsetting, an integral spinal stress guide and dispersion intervertebral implant device.

Therefore, a spinal interbody implant device with integrated spinal stress guidance and dispersion of the present invention is characterized in that the device is implanted between a spinal body and another adjacent spinal body. A natural intervertebral disc position of the human body, which can respectively contact the adjacent upper vertebral body and lower vertebral body; the device is basically an approximately square three-dimensional forming a shock-absorbing and buffering bracket, with each side located on each side Columns, the side columns contact the upper vertebral body and the lower vertebral body, and the side columns are connected by one or more ribs, and the other ends of the ribs are connected together A force guide is connected to form the side posts on the periphery, connected by the ribs, and surround and connect the force guide, so that the force guide becomes a sandwich-like structure located in the middle of the overall structure. Directly connected with the side columns, but indirectly connected by the ribs; the upper vertebral body or the lower vertebral body, respectively or at the same time, exert a positive downward pressure or an oblique pressure on the side columns Or when a torsion pressure or an extension force or a shear force, The side columns are connected to the ribs, and the ribs are connected to the force guide together, so that the upper vertebral body or the lower vertebral body received by the side columns passes through The ribs are evenly distributed and transmitted to the force guide, and the force guides transmit the various forces evenly to the other side posts through the other ribs, and the shock-absorbing and buffering bracket is subjected to the aforementioned Various forces generate overall micro-deformation to buffer and disperse the relative stress and offset the aforementioned various forces.

The above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, wherein the force guide member can be a square, circular, triangular, spherical or other shape, and the preferred embodiment is a ring-shaped force The guide member, each of the ribs is an arc rib column, the ring-shaped force guide connects one end of the arc ribs, and the other end of the arc ribs, respectively connects the side posts .

Another aspect of the present invention is a spinal interbody implant device with integral spinal stress guidance and dispersion. The device is characterized in that the device is basically a square-shaped three-dimensional forming a shock-absorbing and cushioning support, with each of the four sides respectively located One side column, the side columns respectively contact an upper vertebral body and an adjacent lower vertebral body, and the side columns are respectively connected by one end of one or more ribs, and the other of the ribs One end is connected together with a force guide to form the side posts on the periphery, connected by the ribs, and surround and connect the force guide, so that the force guide becomes a sandwich structure in the middle of the overall structure. The guide is not directly connected with the side columns, but indirectly connected by the ribs; the upper side columns contacting the upper vertebral body and the lower side columns contacting the lower vertebral body are the same One end of the side, each two phases are connected to a forward oblique guide head, and the forward oblique An elastic seam is formed between the guide heads; and the upper side columns contacting the upper vertebral body and the lower side columns contacting the lower vertebral body, the other end of the two on the same side, are connected in pairs to a rear transverse An elastic seam is also formed between the posterior transverse column and the upper vertebral body; when the device is implanted in the original human intervertebral disc position of the upper vertebral body and the lower vertebral body, the elastic seam is formed between An expansion margin is the same expansion and contraction direction as the natural vertical direction of the spine when the human body is standing; the upper and lower vertebral bodies that the device touches and receives respectively or simultaneously generate a down pressure or a tilt When pressure or a torsion pressure or an extension force or a shear force can be reduced or expanded in the expansion gap of the elastic seam, the ribs distribute and transmit the force equally, and the force guide is averaged Disperse to other ribs, and because of the aforementioned various forces, the relative stress will be buffered, dispersed and offset by the overall micro-deformation.

The above-mentioned intervertebral implant device with integral spinal stress guidance and dispersion further has: a shock-absorbing and buffering support of approximately square three-dimensional shaping; a plurality of side plates; a plurality of back plates; and a plurality of A perforated cover plate; characterized in that: the left and right sides of the shock-absorbing buffer support have an open surface, respectively, which are combined with two pairs of the side plates, and the two pairs of side plates on each of the left and right open surfaces An elastic seam is formed between the upper and lower parts; the rear horizontal columns of the shock-absorbing and buffering bracket are combined with two pairs of the rear plates, and an elastic seam is formed between the upper and lower back plates; The upper and lower open surfaces of the shock-absorbing and buffering support are respectively combined with the porous cover plates; the aforementioned elastic seams can be connected to the elastic seams formed between the front inclined guide heads to completely surround the device A buffer elastic seam on the peripheral edge, so that when the device is implanted into the natural intervertebral disc position of the original human body between the upper vertebral body and the adjacent lower vertebral body, the porous cover plates contact the upper and The lower vertebral body, a stretch margin formed between the buffer elastic seams, is the same as the upper and lower directions of the natural spine when the human body is standing; the upper and lower vertebrae that the device touches and receives Each force generated by the body can be reduced or expanded in the expansion and contraction margin gap of the buffer elastic seam, and the ribs are evenly distributed and transmitted, and the force is evenly distributed to other ribs through the force guide. And with the overall micro-deformation method, the relative stress will be buffered, dispersed and offset.

The above-mentioned spine interbody implant device with integral spine stress guidance and dispersion, wherein the side plates can be made of a material similar to the natural elasticity of human bone tissue and medical X-ray penetration It can be made of a medical polyetheretherketone polymer or other medical polymers similar to the natural elastic coefficient of the human bone tissue and medical X-ray permeability.

In the above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, the porous cover plates can be combined with a plurality of screws and the shock-absorbing and buffering bracket, or combined with a tenon or welding method, Each of the porous cover plates is perforated with more than or equal to two or thirty or more than one hundred perforations, forming a net or gravel or gravel perforation.

In the above-mentioned intervertebral implant device with integral spinal stress guidance and dispersion, a tool hole can be provided on the back plates, and an implantation tool can be combined, and the implantation tool can be held and implanted. A primitive person who enters the device between the upper vertebral body and the adjacent lower vertebral body The natural position of the intervertebral disc.

In the above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, the rear plates can be gradually and relatively close to the rear transverse column with steps on two sides, and the rear plates of each The other end can be extended upwards or downwards with a fixed wing, the fixed wing is provided with one or more screw holes, each of the screw holes can be screwed with a bone nail, and screwed in the vertebral body.

The above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, wherein the shock-absorbing and buffering bracket can be filled with autologous bone or artificial bone substitute, the autologous bone or artificial bone substitute The perforations of the porous cover plates are in contact with the surface of the vertebral body to facilitate the growth and fusion of the device and the vertebral body.

And the present invention also designs another spinal interbody implant device with integral spinal stress guidance and dispersion, which is characterized in that the device is implanted into a spinal body and another adjacent spinal body It is a natural intervertebral disc position of the original human body, which can respectively contact the adjacent upper vertebral body and lower vertebral body; the device is basically an approximately square three-dimensional forming a shock-absorbing and buffering bracket, with respectively located on the periphery A plurality of peripheral side columns contact the upper vertebral body and the lower vertebral body respectively, and the side columns are connected by one end of a rib, and the other end of the rib A force guide is connected together to form the side posts on the periphery, connected by the rib column, and surround and connect the force guide, so that the force guide becomes a sandwich structure in the middle of the overall structure. It is directly connected with the side posts, but indirectly connected by the rib posts; the side posts on the periphery are respectively located at the upper left front, lower left front, upper right front, and lower right front of the force guide in the middle of the overall structure. Upper left rear, lower left rear, And the upper right rear and the lower right rear, each of the side pillars is on the same horizontal plane or the same vertical side adjacent to the other two side pillars. There is a gap in between, and the gap forms an elastic seam; and they are respectively located at the left front The upper, upper right front, upper left rear, and upper right rear side posts are formed by the elastic seams between the side posts at the lower left front, lower right front, lower left rear, and lower right rear. An expansion margin is the same expansion and contraction direction as the natural vertical direction of the spine when the human body is standing; this same expansion and contraction direction, when the device is placed horizontally, or placed upright in the original human body. In an intervertebral disc position, the elastic seams between the side columns form an expansion and contraction margin, which will still be the same as the up and down direction of the natural spine when the human body is standing.

When the upper and lower vertebral bodies contacted and received by the device generate a positive downward pressure or an oblique pressure or a torsion pressure or an extension force or a shear force, respectively or simultaneously, it can be used in the elastic seam The expansion margin gap shrinks or expands, and the ribs distribute the force evenly, and the force guides are evenly distributed to other ribs. Due to the aforementioned various forces, the overall micro-deformation will be generated. Relative stress buffer dispersion and offset.

The above-mentioned intervertebral body implant device with integral vertebral stress guidance and dispersion, wherein the side columns are each expanded into a supporting end, which can respectively contact the adjacent upper vertebral body and the lower vertebral body Vertebral body.

In the above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, the porous cover plates can be combined with a plurality of screws and the shock-absorbing and buffering bracket, or combined with a tenon or welding method, Each of the porous cover plates is perforated with more than or equal to two or thirty or more than one hundred perforations to form a net-like or gravel-like or gravel-like perforation. The mesh can be close to 300-600μ, such a contact surface , Is the best pore size for bone cell growth, which can make the original human body The full contact between the vertebral body and the device stimulates the growth and fusion of bone cells, and because it is supported by a complete flat wall surface, there is no bone sedimentation effect and stress can be dispersed. The side panels are also provided with multiple perforations to form a net-like perforation, so that the medical X-ray can see through the device, allowing the doctor to inspect the growth and fusion of the device and the human vertebral body bone tissue. Restore the situation and reduce the overall weight of the device, and it will not produce settlement.

The above-mentioned spine interbody implant device with integral vertebral stress guidance and dispersion, wherein the upper and lower walls are designed as a wall surface that approximates a complete plane, compared to a traditional artificial vertebral cage ( Cage) The middle of the cage is completely hollow, and there are only narrow sides around the frame. It is easy to concentrate stress on the vertebral body and cause this kind of traditional artificial vertebral cage to sink into the vertebral body.

The above-mentioned intervertebral body implant device with integral spinal stress guidance and dispersion, wherein the fixed wings are provided with one or more screw holes, and each of the screw holes can be screwed with a bone nail and screwed in In the vertebral body, the bone screw has a two-segment screw design, wherein the first segment is a self-locking screw, which allows the bone screw to be screwed into the screw hole and the cortical bone of the vertebral body, The second segment of the screw is a vertebral body screw, which can lock the bone screw in the cancellous bone of the vertebral body and prevent the bone screw from retreating and protruding. In addition, the fixed wings can be designed in an oblique shape or a Tai Chi shape, so that the fixed wings can be relatively combined with another fixed wing of the intervertebral implant device with integral spinal stress guiding and dispersion.

The above-mentioned spine interbody implant device with integral spine stress guidance and dispersion, wherein the main component of the device can be a material with fusion of human bone tissue and medical X-ray displayability, that is, it can It is a kind of medical titanium alloy or cobalt-chromium-molybdenum alloy or tantalum alloy or other human bone tissue fusion and medical X-ray displayable metal or alloy metal, etc. Made of quality materials.

The aforementioned intervertebral implant device with integrated spinal stress guidance and dispersion refers to front, back, left, and right, which means that the visual direction of the person performing the operation is forward, and vice versa; The left and right sides of the person performing the operation are left, right, left or right.

The above and below refer to the head of the standing patient when the patient is standing, if the natural direction of the patient’s human spine is approximately the vertical direction, and the spine cross-section is approximately parallel, horizontal or horizontal. It is up and up, otherwise it is down and down towards its feet; or it is defined by the object referred to as the center and the object above or below.

In addition, inside, outside, center, and middle are referred to as the position of a certain object, and each is determined by the average value of the position of the center point of the object, which is divided into the inside and outside of the object. The position, direction, or orientation of each object referred to are indicated by graphic illustrations and signs.

100‧‧‧Spine

110‧‧‧Spine cone

200‧‧‧ Artificial spinal intervertebral implant

210‧‧‧undertake plate

220‧‧‧undertake plate

230‧‧‧hollow cylinder

300‧‧‧A spinal interbody implant device with integral spinal stress guidance and dispersion

310‧‧‧Shock Absorbing Buffer Bracket

320‧‧‧Side Post

330‧‧‧ Ribs

340‧‧‧Force guide

350‧‧‧Force guide

400‧‧‧Upper spine

410‧‧‧Lower Spine Vertebrae

420‧‧‧Intervertebral disc

500‧‧‧A spinal interbody implant device with integral spinal stress guidance and dispersion

510‧‧‧Shock Absorbing Buffer Bracket

520‧‧‧Upper side pillar

521‧‧‧Lower side pillar

522‧‧‧rib column

523‧‧‧Force guide

524‧‧‧Front inclined head

525‧‧‧Elastic stitch

526‧‧‧ Rear Cross Column

527‧‧‧Elastic stitch

530‧‧‧Side panel

540‧‧‧Back plate

550‧‧‧Perforated cover

531‧‧‧Elastic stitch

541‧‧‧Elastic stitch

560‧‧‧Buffer elastic seam

551‧‧‧Screw

542‧‧‧Tool hole

570‧‧‧Implant Tool

543‧‧‧Two side steps

544‧‧‧Fixed Wing

545‧‧‧Screw hole

546‧‧‧Bone nail

571‧‧‧ Artificial bone substitute

600‧‧‧A spinal interbody implant device with integral spinal stress guidance and dispersion

610‧‧‧Shock Absorbing Buffer Bracket

620‧‧‧side pillar

630‧‧‧rib column

640‧‧‧Force guide

621‧‧‧Elastic stitch

622‧‧‧Support end

Figures 1a and 1b are an I-shaped, each with an upper and lower receiving plate, and a hollow columnar body is directly connected, so that various spine stresses are concentrated through the hollow column, and concentrated on the upper and lower receiving plates Schematic diagram of traditional spinal medical implants.

Fig. 2a is a schematic diagram of a three-dimensional configuration of a shock-absorbing and buffering bracket of a spinal interbody implant device with integrated spinal stress guidance and dispersion according to the present invention.

Fig. 2b is a perspective view of another configuration of a force guide member of the shock-absorbing and buffering bracket of the spine interbody implant device with integral spinal stress guiding and dispersion.

Fig. 3 is a schematic view showing the three-dimensional configuration of another shock-absorbing and buffering bracket of a spinal interbody implant device with integral spinal stress guidance and dispersion according to the present invention.

Fig. 4a is an exploded schematic diagram of the spine interbody implant device with integral spine stress guidance and dispersion. In addition to the shock-absorbing and buffering bracket, it further has a plurality of side plates, back plates and porous cover plates in a complete combination.

Fig. 4b is a three-dimensional schematic diagram of the combined spine interbody implant device with integrated spinal stress guidance and dispersion.

Figures 5a and 5b show the spine interbody implant device with integral spinal stress guidance and dispersion. It is filled with an artificial bone substitute and implanted into a vertebral body with an implant tool, and extends up and down. A three-dimensional schematic diagram of the fixed wings and each bone screw implanted and screwed on the vertebral body.

Fig. 6a and Fig. 6b are the three-dimensional schematic diagram of another shock-absorbing and buffering bracket of another vertebral interbody implant device with integrated spinal stress guidance and dispersion of the present invention, and each expands into a supporting end, which can A schematic diagram of the three-dimensional configuration of the adjacent upper and lower vertebral bodies in contact with each other.

With reference to Figures 1a and 1b, an artificial spinal intervertebral implant 200 has an "I" shape as a whole, with an upper and lower "receiving disc 210, which is in direct contact with the upper and lower vertebral bodies 100, 110" 220", and the upper and lower "receiving plates 210, 220" are a hollow cylindrical body 230 that directly connects the upper and lower receiving plates 210, 220 completely.

As mentioned in the previous paragraph, if the supporting plates 210, 220 directly contact the upper and lower vertebral bodies 100, 110, a hollow column 230 is used to directly contact the upper and lower supporting plates 210, 220. If there is no buffer design in the middle of the hollow column 230, it is very likely that the pressure, torsion, extension or shear generated by the various vertebrae described in the previous paragraph will be affected by the latest medical engineering computer simulation. Obviously and concentratedly through the hollow column 230, and on the upper and lower receiving discs 210, 220, there is a concentration point of stress concentration, and the receiving discs 210, 220 will not have a design to buffer the spine stress, but will cause The reaction force is strongly and concentratedly applied to the upper and lower vertebral vertebral bodies 100 and 110 that it contacts, causing damage to the upper and lower vertebral vertebral bodies 100 and 110.

2a and 2b, a spinal interbody implant device 300 with integral spinal stress guidance and dispersion of the present invention is characterized in that: the device 300 is implanted into a spinal body 400 and adjacent The position of the original human intervertebral disc 420 between the other vertebral body 410, which can respectively contact the adjacent upper vertebral body 400 and the lower vertebral body 410; (the upper and lower vertebral bodies are shown, please refer to the figure 5a and Figure 5b)

The device 300 is basically a shock-absorbing and cushioning support 310 that is approximately square-shaped, and has side posts 320 respectively located on four sides, and the side posts 320 respectively contact the upper vertebral body 400 and the lower vertebral body 410. And the side posts 320 are respectively connected by one end of one or more ribs 330, and the other end of the ribs 330 is connected together with a force guide 340 to form the side posts 320 on the periphery, The ribs 330 are connected, surround and connect the force guide 340, so that the force guide 340 becomes a sandwich structure located in the middle of the overall structure. The force guide 340 is not directly connected with the side posts 320, but Indirectly connected by the ribs 330; the upper vertebral body 400 or the lower vertebral body 410, respectively or at the same time, exert a positive downward pressure or an oblique pressure or a torsional pressure or a Under extension force or a shear force, the side posts 320 are connected to the ribs 330, and the ribs 330 are connected to the The force guide 340 enables the various forces applied by the upper vertebral body 400 or the lower vertebral body 410 received by the side columns 320 to be evenly distributed and transmitted to the force guide 340 through the ribs 330, and The force guide 340 then evenly distributes the various forces to the other side posts 320 through the other ribs 330, and the shock-absorbing support 310 is slightly deformed as a whole due to the aforementioned various forces. , To buffer and disperse the relative stress and offset the aforementioned various forces.

The spine interbody implant device 300 with integral spinal stress guidance and dispersion, wherein the force guide member can be a square 350, a circle, a triangle, a sphere, or other shapes. The preferred embodiment is a ring-shaped force The guide 340, each of the ribs 330 is an arc-shaped rib column, and the ring-shaped force guide 340 connects one end of the arc-shaped ribs 330 and the other end of the arc-shaped ribs 330, respectively Connect the side posts 320.

Referring to FIG. 3, a spinal interbody implant device 500 with integral spinal stress guidance and dispersion according to the present invention is characterized in that: the device 500 is basically an approximately square three-dimensional forming a shock-absorbing and buffering bracket 510 , Having a pair of upper side posts 520 and a pair of lower side posts 521 respectively located on the four sides, the upper and lower side posts 520, 521 respectively contact an upper spine vertebra 400 and an adjacent lower spine 410, and the upper and lower sides The pillars 520, 521 are respectively connected by one end of one or more ribs 522, and the other ends of the ribs 522 are connected together with a force guide 523 to form the upper and lower side pillars 520, 521 on the periphery. The ribs 522 are connected, and surround and connect the force guide 523, so that the force guide 523 becomes a sandwich structure in the middle of the overall structure. The force guide 523 is not directly connected to the upper and lower side posts 520, 521. Connected, but indirectly connected by the ribs 522; (The upper and lower vertebral body diagrams, see Figure 5a and Figure 5b)

Contact the upper side posts 520 of the upper vertebral body 400, and contact the lower spine The lower side posts 521 of the vertebral body 410 have one end on the same side and are connected to an anterior oblique guide 524, and an elastic seam 525 is formed between the anterior oblique guides 524; and contact the upper vertebra The upper side posts 520 of the body 400 and the lower side posts 521 contacting the lower vertebral body 410, the other end of the same side of the two, are connected in pairs to a rear transverse column 526 and the rear transverse columns 526 An elastic seam 527 is also formed between the upper vertebral body 400 and the lower vertebral body 410. When the device 500 is implanted in the original human intervertebral disc 420, the elastic seams 525 and 527 are formed An expansion margin is the same expansion and contraction direction as the natural vertical direction of the spine when the human body is standing; one of the upper and lower spine vertebrae 400, 410 that the device 500 contacts and receives, respectively or at the same time When pressure, an inclination pressure, a torsion pressure, an extension force or a shear force, the gap between the expansion and contraction margins of the elastic seams 525 and 527 can be reduced or expanded, and the ribs 522 can evenly distribute these forces. , And spread evenly to the other ribs 522 through the force guide 523, and the relative stress will be buffered, dispersed and offset by the overall micro-deformation due to the aforementioned various forces.

Referring to Figures 4a and 4b, the spine interbody implant device 500 with integral spinal stress guidance and dispersion further has: a shock-absorbing and cushioning bracket 510 of approximately square three-dimensional shaping; a plurality of side plates 530; A plurality of rear plates 540; and a plurality of perforated cover plates 550; It is characterized in that: the left and right sides of the shock-absorbing and buffering support 510 have an open surface respectively, and two pairs of the side plates 530 are respectively combined with each other. The two-by-two sides of the right open face An elastic seam 531 is formed between the upper and lower sides of the plate 530; the rear horizontal columns 526 of the shock-absorbing and buffering bracket 510 are combined with two pairs of the rear plates 540, and an elastic seam is formed between the upper and lower plates 540 541; the upper and lower open surfaces of the shock-absorbing and buffering support 510 are respectively combined with the porous cover plates 550; the aforementioned elastic slits 531, 541 can be connected to the front inclined guide head 524 formed between The elastic seam 525 becomes a buffer elastic seam 560 which completely surrounds the peripheral edge of the device, so that the device 500 is implanted into the natural human body between the upper vertebral body 400 and the adjacent lower vertebral body 410 When the intervertebral disc position 420, the porous cover plates 550 contact the upper 400 and the lower vertebral body 410, respectively, and a stretch margin formed between the cushion elastic slits 560 is in line with the natural vertical direction of the spine when the human body stands. The same direction of expansion and contraction; each of the forces generated by the upper 400 and lower vertebral bodies 410 contacted and received by the device 500 can be reduced or expanded in the expansion gap of the buffer elastic seam 560. The ribs 522 evenly disperse and conduct the force, and evenly distribute the force to other ribs 522 through the force guide 523, and will generate a slight overall deformation to buffer, disperse and offset the relative stress.

The spinal interbody implant device 500 with integral spinal stress guidance and dispersion, wherein the side plates 530 can be made of a material similar to the natural elasticity of human bone tissue and medical X-ray penetration It can be made of a medical polyetheretherketone polymer or other medical polymers similar to the natural elastic coefficient of the human bone tissue and medical X-ray permeability.

The spinal interbody implant device 500 with integral spinal stress guidance and dispersion, wherein the porous cover plates 550 can be combined with a plurality of screws 551 and the shock-absorbing support 510 Combined, or combined by a tenon or welding method, each of the perforated cover plates 550 is provided with more than or equal to two or thirty or more than one hundred perforations to form a net or gravel or gravel perforation.

Referring to Figures 4a, 4b, 5a and 5b, the spine interbody implant device 500 with integral spinal stress guidance and dispersion, wherein a tool hole 542 can be provided on the back plates 540, and can be combined An implantation tool 570, which can hold and implant the device 500 to the position of the original human intervertebral disc 420 between the upper vertebral body 400 and the adjacent lower vertebral body 410.

In the spine interbody implant device 500 with integral spine stress guidance and dispersion, the rear plates 540 with two-side steps 543 can gradually be relatively close to the rear transverse column 526, each of which The other end of the rear plate 540 can be extended upward or downward with a fixed wing 544. The fixed wings 544 are provided with one or more screw holes 545. Each screw hole 545 can be screwed with a bone nail 546 and screwed. Within the vertebral bodies 400 and 410 of the spine.

The spine interbody implant device 500 with integral spine stress guidance and dispersion, wherein the shock-absorbing and buffering bracket 510 can be filled with an artificial bone substitute 571, and the artificial bone substitute 571 passes through the porous covers The perforation of the plate 550 is in contact with the surface of the vertebral bodies 400 and 410 to facilitate the growth and fusion of the device 500 and the vertebral bodies 400 and 410.

6a and 6b, the present invention also designs another spinal interbody implant device 600 with integral spinal stress guidance and dispersion, characterized in that: the device 600 is implanted into a vertebral body 400 The position of a natural intervertebral disc 420 of the original human body between another adjacent vertebral body 410, which can respectively contact the adjacent upper vertebral body 400 and the lower vertebral body 410; (the upper and lower vertebral bodies are shown , Refer to Figure 5a and Figure 5b)

The device 600 is basically a shock-absorbing and cushioning support 610 that is approximately square-shaped and has a plurality of side posts 620 respectively located at the outer periphery. The side posts 620 contact the upper vertebral body 400 and the lower vertebral body respectively 410, and the side posts 620 are respectively connected by one end of a rib 630, and the other end of the rib 630 is connected together with a force guide 640, forming the side posts 620 on the periphery, with the rib The column 630 is connected, and surrounds and connects the force guide 640, so that the force guide 640 becomes a sandwich structure located in the middle of the overall structure. The force guide 640 is not directly connected with the side posts 620, but through the The equal rib posts 630 are indirectly connected; the peripheral side posts 620 are respectively located at the upper left front, lower left front, upper right front, lower right front, upper left rear, lower left rear, and lower right of the force guide 640 in the middle of the overall structure. On the upper rear and lower right rear, each of the side pillars 620 is adjacent to the same horizontal plane or the same vertical plane of the other two side pillars 620, with a gap between them, and the gap forms an elastic slit 621; The side posts 620 on the upper left front, upper right front, upper left rear, and upper right rear are the elastic seams between the side posts 620 located at the lower left front, lower right front, lower left rear, and lower right rear. 621. A stretch margin formed is the same stretch direction as the natural spine vertical direction when the human body is standing; this same stretch direction, when the device 600 is placed horizontally or placed upright When the original human body is at the position of a natural intervertebral disc 420, the elastic seam 621 between the side posts 620 forms a stretch margin, which will still be the same as the vertical direction of the natural spine when the body is standing. .

And when the upper 400 and lower vertebral bodies 410 contacted and received by the device 600 generate a positive downward pressure, an oblique pressure, a torsional pressure, or an extension force or a shear force, respectively or simultaneously The expansion and contraction margin gap of the elastic seam 621 shrinks or expands, and the rib column 630 evenly disperses and conducts these forces, and evenly distributes them to other ribs 630 through the force guide 640, and due to the foregoing various forces, the relative stress will be buffered, dispersed and offset by the overall micro-deformation.

In addition, the vertebral interbody implant device 600 with integral vertebral stress guidance and dispersion, wherein the side posts 620 are each expanded into a supporting end 622, which can respectively contact the adjacent upper vertebral body 400 and The lower vertebral body 410 can achieve a more complete and smooth supporting effect.

300‧‧‧A spinal interbody implant device with integral spinal stress guidance and dispersion

310‧‧‧Shock Absorbing Buffer Bracket

320‧‧‧Side Post

330‧‧‧ Ribs

340‧‧‧Force guide

Claims (9)

A spine intervertebral implant device with integral spinal stress guidance and dispersion, characterized in that: the device is a square-shaped three-dimensional forming a shock-absorbing and buffering support, with each side column located on the four sides, and the side columns Respectively contact an upper spine vertebral body and an adjacent lower spine vertebral body, and the side columns are respectively connected by one end of one or more ribs, and the other ends of the ribs are connected together with a force guide The side posts are formed on the periphery, connected by the rib posts, and surround and connect the force guide member, so that the force guide member becomes a sandwich structure located in the middle of the overall structure, and the force guide member is not connected to the sides The columns are directly connected, but indirectly connected by the ribs; the upper side columns contacting the upper vertebral body and the lower side columns contacting the lower vertebral body have one end on the same side, two each An anterior oblique guide head is connected, and an elastic seam is formed between the anterior oblique guide heads; and the upper side columns contacting the upper vertebral body are the same as the lower side columns contacting the lower vertebral body The other end of the side is connected to a posterior transverse column in pairs, and an elastic seam is also formed between the posterior transverse columns; the device is implanted into the original human body of the upper vertebral body and the lower vertebral body. In the position of an intervertebral disc, an expansion margin formed by the elastic seams is the same as the up and down direction of the natural spine when the human body is standing; When the upper and lower vertebral bodies contacted and received by the device generate a positive downward pressure or an oblique pressure or a torsion pressure or an extension force or a shear force, respectively or simultaneously, it can be used in the elastic seam The expansion and contraction margin gap is reduced or expanded, and the ribs distribute and transmit the force evenly, and the force guides are evenly distributed to other ribs, and due to the aforementioned various forces, the overall micro-deformation is relatively Stress buffering and dispersing and offsetting; wherein the force guide can be a square, circle, triangle, spherical, flat, disc, ring, etc., each of the ribs is an arc rib, and the force guides The parts are connected to one end of the arc-shaped ribs and the other end of the arc-shaped ribs are respectively connected to the side posts. According to item 1 of the scope of patent application, a spinal interbody implant device with integral spinal stress guidance and dispersion, which further has: a square-shaped three-dimensional shaping and a shock-absorbing cushioning bracket; a plurality of side plates; a plurality of back plates ; And a plurality of perforated cover plates; characterized in that: the left and right sides of the shock-absorbing cushioning support have an open surface, respectively, which are combined with two pairs of the side plates, each of the left and right open surfaces of the two An elastic seam is formed between the upper and lower sides of a pair of side plates; the rear horizontal columns of the shock-absorbing and buffering bracket are combined with two pairs of the rear plates, and an elastic seam is formed between the upper and lower back plates; The upper and lower open surfaces of the shock-absorbing and buffering support are respectively combined with the porous cover plates; the aforementioned elastic seams can be connected to the elastic seams formed between the front inclined guide heads to completely surround the device A buffer elastic seam on the peripheral edge, so that when the device is implanted into the natural intervertebral disc position of the original human body between the upper vertebral body and the adjacent lower vertebral body, the porous cover plates contact the upper and The lower vertebral body, a stretch margin formed between the buffer elastic seams, is the same as the upper and lower directions of the natural spine when the human body is standing; the upper and lower vertebrae that the device touches and receives Each force generated by the body can be reduced or expanded in the expansion and contraction margin gap of the buffer elastic seam, and the ribs are evenly distributed and transmitted, and the force is evenly distributed to other ribs through the force guide. In addition, the relative stress is buffered, dispersed and counteracted by the overall micro-deformation method. According to the second item of the scope of patent application, a spinal interbody implant device with integral spinal stress guidance and dispersion, wherein the side plates can have a natural elastic coefficient similar to human bone tissue and can be penetrated by medical X-rays It is made of a transparent material, which can be made of a medical polyetheretherketone polymer or other medical polymer that is similar to the natural elastic coefficient of the human bone tissue and medical X-ray permeability. According to item 2 of the scope of patent application, a spine interbody implant device with integral spine stress guidance and dispersion, wherein the porous cover plates can be restored A number of screws are combined with the shock-absorbing and buffering bracket, or combined with a tenon or welding method, and a plurality of perforations are penetrated on each of the porous cover plates to form a net-like or gravel-like or gravel-like perforation. According to the second item of the scope of patent application, a spinal interbody implant device with integral spinal stress guidance and dispersion, wherein a tool hole can be provided on the back plates, and an implant tool can be combined, the implant The tool can hold and implant the device to the natural intervertebral disc position of the original human body between the upper vertebral body and the adjacent lower vertebral body. According to item 2 of the scope of patent application, a spinal interbody implant device with integral spinal stress guidance and dispersion, in which the rear plates can be gradually and relatively close to the rear transverse column with steps on two sides , The other end of each rear plate can be provided with a fixed wing extending upward or downward. The fixed wings are provided with one or more screw holes, and each screw hole can be screwed with a bone nail and screwed to the spine Vertebral body. According to the second item of the scope of patent application, a spine interbody implant device with integral spine stress guidance and dispersion, wherein the shock-absorbing and cushioning bracket can be filled with an artificial bone substitute, and the artificial bone substitute penetrates The perforations of the porous cover plates are in contact with the surface of the vertebral body to facilitate the growth and fusion of the device and the vertebral body. A spinal interbody implant device with integral spinal stress guidance and dispersion, which is characterized in: The device is a natural intervertebral disc position of the original human body implanted between a vertebral body and another adjacent vertebral body, and it can contact the adjacent upper vertebral body and the lower vertebral body respectively; The device is a square-shaped three-dimensional forming a shock-absorbing and buffering support, with a plurality of side posts respectively located at the outer periphery, the side posts respectively contact the upper vertebral body and the lower vertebral body, and the side posts respectively One end of a rib column is connected, and the other end of the rib column is connected together with a force guide member to form the side columns at the periphery, connected by the rib column, and surround and connect the force guide member so that the force The guide becomes a sandwich structure located in the middle of the overall structure. The force guide is not directly connected with the side posts, but indirectly connected by the ribs; the side posts on the periphery are respectively located in the middle of the overall structure The upper left front, the lower left front, the upper right front, the lower right front, the upper left rear, the lower left rear, the upper right rear, and the lower right rear of the force guide, each of the side pillars is the same horizontal plane or the same vertical plane The other two side posts have a gap in the middle, and the gap is formed with an elastic seam; and the side posts respectively located at the upper left front, upper right front, upper left rear, and upper right rear, are respectively located on the left front The elastic seams between the lower, lower right front, lower left rear, and lower right rear side columns form a stretch margin, which is the same as the natural vertical direction of the spine when the human body is standing; When the upper and lower vertebral bodies contacted and received by the device generate a positive downward pressure or an oblique pressure or a torsion pressure or an extension force or a shear force, respectively or simultaneously, it can be used in the elastic seam The expansion and contraction margin gap is reduced or expanded, and the ribs distribute and transmit the force evenly, and the force guides are evenly distributed to other ribs, and due to the aforementioned various forces, the overall micro-deformation is relatively Stress buffering and dispersing and offsetting; wherein the force guide can be a square, circle, triangle, spherical, flat, disc, ring, etc., each of the ribs is an arc rib, and the force guides The parts are connected to one end of the arc-shaped ribs and the other end of the arc-shaped ribs are respectively connected to the side posts. According to item 8 of the scope of patent application, a spine interbody implant device with integral spinal stress guidance and dispersion, wherein the side columns are each expanded into a supporting end, which can respectively contact the adjacent upper vertebrae The vertebral body and the lower vertebral body.

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