TW201444522A - Spring wire type spine stabilization device with shift prevention - Google Patents

Abstract

A spring wire type spine stabilization device with shift prevention includes: a spring rod member spirally wound by a spring wire to form a lengthwise spring rod with a plurality of continuous spring circles; two linking members fixedly linked with two terminals of the spring rod member, wherein the terminal surfaces opposite to the two linking members are respectively arranged with sheath caves axially in a depressed manner; and at least one elastic stick axially inserted in the spring rod member, wherein the two terminals of the elastic stick are inserted into the sheath caves of the two linking members, respectively. Because the spring rod member is formed by winding the spring wire in a spiral manner, the two terminals thereof are naturally formed with screw threads for directly locking to the linking member or elastically buckling to the linking member via each spring circle without needing additional mechanical processing, so as to simplify the manufacturing process and reduce the manufacturing cost thereby presenting its novelty and inventive step.

Description

Spring-type spinal stabilization device with offset prevention

The invention relates to a reed type spinal stabilization device with anti-offset, in particular to a longitudinal reed rod formed by spirally winding a spring wire and forming a plurality of continuous coils, and the longitudinal reed rod The two ends are respectively locked or elastically fastened with the engaging members, and between the sleeves recessed by the two connecting members, the spinal stabilization device of the elastic rod is axially inserted.

When the intervertebral disc between the two vertebrae is damaged, when the nerve is pressed to the nerve, the human body will feel sore and discomfort. When the damage is more serious, most of the patients are currently undergoing fusion surgery to reduce the discomfort of the patient. The fusion surgery is performed by a metal rod, which is locked on the vertebral body of the lesion and the cones of the upper and lower sections, that is, the majority of the vertebral bodies are fixed and fused to avoid the vertebral body of the lesion and then subjected to compression. And to alleviate the pain and discomfort of the patient.

However, the metal rods used in the above-mentioned fusion surgery cannot flex and stretch elastically. Therefore, the multi-section vertebral body which is fixed and fused can no longer perform the swinging and bending motion. At this time, it is located above and below the fusion surgery range. Normal intervertebral discs must bear all the effects of human movement

In order to improve the above-mentioned problems, U.S. Patent No. 8,080,038 discloses a double-spring member that is fixed between a plurality of vertebrae, except that the lesion can be released to reduce the patient's pain, and can be stretched by a double spring member. The curved feature provides the vertebral body of the spine, which can oscillate or bend with the direction of motion; however, this compressible double-layer spring member, when the patient jumps or runs At the time of step, the sudden upper and lower forces will axially compress the double spring members in opposite directions, resulting in the possibility that the lesions are again subjected to compression and pain. In addition, as shown in the first figure attached to the present invention, the double spring member (60) formed by spiral winding of the wire is used, and the adjacent spring coils cannot bear a large radial relative relationship. Force (F, F'), which is easily caused by the relative radial force (F, F'), resulting in a relative offset state as shown in the first figure, that is, the spinal stabilization device disclosed in the case, The radial relative force does not have the function of protection. Therefore, when the human body is moved or subjected to an external force, it is easy to be on the multi-section vertebral bodies (P1, P2, P3) to which the double-layer spring member (50) is locked. Relative offsets and misalignments result in greater damage to the body at the lesion.

For this reason, as shown in the US Publication No. US2007/0049937A1, it is disclosed in the middle of a rod-shaped implant element (1), as in the example of fig. 6-13, which is formed with The spiral groove (10) is made into a flexible flexible section, and at both ends of the elongated rod-shaped implant component (1), the end plug (13, 14; closure member) is locked or riveted, and The longitudinal rod-shaped implant component (1) is provided with a core rod (12). In this embodiment, although the core rod (12) can achieve the purpose of preventing offset, the elongated rod shape The implant component (1) is manufactured by directly cutting the spiral groove (10) on the hollow pipe. Since the thickness of the pipe wall is thin, the machining force tends to cause deformation of the hollow pipe. Therefore, the usual manufacturing method is On the solid rod body, the spiral groove (12) is first cut, and then one end of the rod body is subjected to the milling hole processing, and the cut hole is passed through the spiral groove (12) to be applied to the rod-shaped implant component (1). Forming a spiral groove (12) therethrough, and then applying a machining to each end of the rod-shaped implant component (1) to form a screw hole for locking the end plug (13, 14) Thus, the conventional case disclosed in front of the rod-shaped implant element (1) must undergo machining process four times, except that the processing difficulties and complexity, but also increases the cost. In addition, due to the implantation of the human body, the burrs or sharp edges caused by the processing are not allowed, so that the rod-shaped implant component (1) is more manufactured and processed. Difficult.

Further, as shown in U.S. Patent No. 7,329,258, the first elastic member (2) of the structure is also the same as the above-mentioned prior art, and is formed by mechanical cutting using a solid rod body, and must also be subjected to multiple times. The machining process increases the difficulty and complexity of machining, and increases the cost, which shows that it is necessary for improvement.

In the foregoing two cases of US 2007/0049937 A1 and No. 7,329,258, since the formed rod-shaped implant element (1) or the first elastic element (2) is formed with a cutter with a spiral groove, since the spiral groove has a certain groove width Therefore, the rod-shaped implant element (1) or the first elastic element (2) can be axially compressed, which is not suitable for a spinal patient injured by compression, and the above two cases cannot effectively resist the relative role of the axial direction. Force, that is, unable to effectively support the injured spine, and there is a need for improvement.

In view of this, the inventors of the present invention have added research and innovation to reveal the reed-type reed stabilization device of the present invention.

It is an object of the present invention to provide a reed type spinal stabilization device with offset prevention that can be tightened for most pedicle screws and that is attached to one side of the spine with each of the pedicle screws, including: a spring member a longitudinal spring spring formed by a spiral of a plurality of continuous coils; the two engaging members are fixedly coupled to the two ends of the spring member and opposite end faces of the two connecting members And a plurality of elastic rods are axially recessed; and at least one elastic rod is axially inserted into the spring rod member, and the two ends of the elastic rod are respectively inserted into the sleeves of the two connecting members And when the spring member is axially stretched to a maximum allowable length or bent, the two ends of the elastic rod still extend into the sleeve of the two engaging members; since the spring member is spring-spring Spirally wound, the ends of the two are naturally formed with a spiral pattern, which can be directly locked with a corresponding spiral groove. The connecting member or the snap ring elastically snaps the engaging member with the ring groove. Therefore, the spring member disclosed in the present invention can be joined to the two ends without additional machining after molding. The components are stably connected to simplify the process and reduce the manufacturing cost, and the invention is novel and progressive.

The invention can not be pulled in a plurality of relative offset characteristics by the elastic rod axially inserted into the spring member, so as to avoid a relatively large amount of offset motion of the spring member due to the radial relative force.

The reed type screw stabilization device with anti-offset disclosed in the present invention has a pedicle screw, and a pedestal is protruded from the bottom of the pedestal to be nailed into the spine, and The pedestal is provided with a pinhole, and the pinhole protrudes from at least one protruding tooth to engage between two adjacent coils of the spring bar member, and a plug is locked in the pinhole to The spring member is clamped between the pin and the plug. However, the pedicle screw described above is not the subject of the present invention, and the present invention can be applied to other conventional pedicle screws without self-limiting.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the spring member is such that when the spring wire is spirally wound, the distance between adjacent reeds is extremely close to zero, that is, molding The spring rod member has a compressible distance approaching zero, so that the invention can effectively support and release the spinal vertebral body of the lesion, and can effectively avoid the injury of the injured vertebral body or intervertebral disc due to excessive compression.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the engaging member for socketing the side end of the reed member includes an engaging portion, and a rod is axially protruded from one end of the engaging portion. The body is considered to be a pedicle screw locking connection, and at least one set of holes is axially recessed on the end face of the engaging section. The above-mentioned rod body can be provided with a shaft hole for locking to a solid body The shaft is fixed to adjust the angle at which the engaging member engages the spring member for the purpose of installing a spinal stabilization device such as a cervical vertebra and a skull pillow.

The connecting member disclosed in the present invention can be modified to include a rod body, and an engaging portion is axially protruded from each end of the rod body to respectively engage a spring rod member, and the end faces of the connecting portions are respectively At least one set of holes is axially recessed to allow one end of the elastic rod to penetrate inside. The above-mentioned engaging member can make the sleeves of the engaging sections at both ends of the rod body penetrate each other, so that the elastic rod can penetrate the engaging member and axially pass through the majority of the spring rod members. In application, the pedicle screw can be locked to the shaft between the two engaging segments to be fastened to one side of the vertebral body with the pedicle screw.

The connecting member disclosed in the present invention, wherein the engaging section is a spiral groove section having a helix angle of the matching spring rod member to be fitted to the side end of the spring rod member in an engaging manner; or on the connecting section, the ring A ring groove is provided to elastically fasten a part of the coil of the spring member to the ring groove.

The connecting member disclosed in the present invention can be made of a metal material, an alloy material, a plastic or a composite material, and the present invention is not limited to the material thereof.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the elastic rod system can be made of metal, carbon fiber, plastic or a composite material such as PEEK, and the invention does not limit its material. The elastic rods described above may be in a straight line, a curved line or at an angle to conform to the human spine curve.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the outer end of the engaging member is provided with a linkage portion for the joint rotation of the wrench or the screwdriver, so that the engaging member can be a wrench or a screwdriver, and the rotating member can be rotated The engaging portion is tightly screwed to the side end of the spring body.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein a rubber sleeve can be further coated on the outer edge of the reed member to prevent the human body muscle tissue from invading and invading the spine stability disclosed in the present invention. In the device.

The present invention discloses a reed type spinal stabilization device for preventing offset, wherein a spring wire for forming a spring rod member in a tightly wound manner is formed on the opposite sides thereof to form a convex portion for mutual engagement or engagement And the concave portion, the formed spring member, the convex portion and the concave portion of the adjacent two coils are mutually engaged and stacked, so that the adjacent coils are not radially offset.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the reed member can be composed of a single-layer continuous coil or a plurality of layers of continuous coils, and the present invention is not limited.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the elastic rod is configured such that both ends thereof are movably inserted in the sleeve holes of the two engaging members respectively; or one end of the elastic rod is , is fastened in the sleeve hole of one of the engaging members, and the other end is in an active state and is placed in the sleeve hole of the other connecting member.

The present invention discloses a reed type spinal stabilization device for preventing migration. In application, each pedicle screw can be directly locked at any position of the spring member, because the spring member of the device on the side of the spine is Most of the continuous coils can be flexibly bent, stretched or twisted. In addition, the elastic rods axially inserted into the spring members can be elastically bent with the movement of the spine. Therefore, the device of the present invention is In the patient, when the spine is exercising, the present invention can be oscillated or stretched in conjunction with the vertebral bodies of the spine to simulate the movement of normal spinal tissue, soothing or reducing the discomfort of the installer.

The present invention discloses a reed type spinal stabilization device for preventing migration due to the spring The rod member is spirally wound by a spring wire, and after forming, a plurality of coils are naturally formed into a spiral inner hole or an external thread segment at both ends thereof, and the corresponding locking groove can be connected with the corresponding spiral groove. The component is directly elastically fastened to the connecting member having the ring groove by the coil spring, which is quicker and more convenient in the installation application. The spring rod member disclosed by the invention does not need to be subjected to other mechanical processing (such as cutting spiral groove, milling hole, twisted thread hole) after molding, so that the invention is extremely simple in manufacturing, and the manufacturing cost can be greatly increased. The novelty and advancement of the present invention are shown in the two cases, which are superior to those of US 2007/0049937 A1 and 7,329,258.

The desirable entities of the present invention can be clarified by the following description and the accompanying drawings.

(10)‧‧‧Spring rod components

(10a) (10b) ‧ ‧ both ends

(11)‧‧‧ rubber sleeve

(12a) ‧ ‧ convex

(12b) ‧ ‧ recess

(20) ‧‧‧Connecting members

(21) ‧‧‧Connecting segments

(211)‧‧‧Spiral slot

(212) ‧‧‧ Ring groove

(22)‧‧‧ rods

(221)‧‧‧Axis hole

(23) ‧‧‧ hole

(24) ‧‧‧ linkage department

(30)‧‧‧Flex rods

(30a) (30b) ‧ ‧ both ends

(40) ‧ ‧ pedicle screws

(41) ‧ ‧ pedestal

(411)‧‧‧nails

(412)‧‧‧ Sandwich

(413)‧‧‧ teeth

(42) ‧ ‧ embolization

(50) ‧ ‧ vertebrate

(51)‧‧‧ vertebral bodies

(52) ‧‧ ‧ intervertebral disc

(60)‧‧‧Double spring members

(F)(F’)‧‧‧radial relative forces

(P1, P2, P3) ‧ ‧ vertebral bodies

First: A state diagram in which the conventional spinal stabilization device is deflected by relative force.

Second Figure: A perspective exploded view of the present invention.

Third figure: is a perspective view of the invention after assembly.

The fourth picture is a schematic diagram of the cross-sectional structure of the third figure.

Fig. 5 is a schematic view showing the installation of the present invention and a conical root screw.

Fig. 6 is a view showing an application state of the present invention mounted on one side of the spine.

Fig. 7 is a schematic view showing the present invention in a state of bending elastic deformation.

Figure 8 is a schematic view of a spring member constructed by a multilayer coil.

Figure 9 is a schematic view showing a second embodiment of the engaging member shown in the present invention.

Fig. 10 is a schematic view showing a third embodiment of the engaging member shown in the present invention.

Figure 11 is a schematic view showing a fourth embodiment of the engaging member shown in the present invention.

Fig. 12 is a schematic view showing a fifth embodiment of the engaging member shown in the present invention.

Figure 13 is a schematic view showing a sixth embodiment of the engaging member shown in the present invention.

Figure 14 is a schematic view of the present invention with a plurality of connecting members engaging a plurality of spring members.

Fig. 15 is a schematic view showing the second sectional structure of the spring member shown in the present invention.

Figure 16 is a schematic view showing a third sectional structure of the spring member shown in the present invention.

Figure 17 is a schematic view showing the fourth sectional structure of the spring member shown in the present invention.

Referring to the second to seventh figures, the present invention relates to a reed type spinal stabilization device with offset prevention, which can be used for fastening most pedicle screws (40), and with the pedicle screws (40) fixed to one side of the spine (50), the spinal stabilization device comprising a spring member (10), at each of which is fastened with a connecting member (20) and respectively connected to the two connecting members (20) Between the two, an elastic rod (30) is placed so that the elastic rod (30) is axially inserted into the spring member (10).

The reed type spinal stabilization device for preventing migration is characterized by comprising: a spring member (10), which is spirally wound by a spring wire to form a longitudinal spring spring formed by a plurality of continuous coils; The member (20), each of the engaging members (20) includes an engaging portion (21) for fixedly engaging at both ends (10a, 10b) of the spring member (10), and between the two engaging members (20) And a pair of axially recessed sleeves (23); and at least one elastic rod (30) axially inserted into the spring member (10), and the elastic rod ( 30) The two ends (30a, 30b) respectively extend into the sleeve (23) of the two engaging members (20), and the spring member (10) is axially stretched to the maximum allowable length or curved At the maximum curvature, as shown by the dashed line in the seventh figure, the two ends (30a, 30b) of the elastic rod (30) still extend into the sleeve (23) of the two engaging members (20). Since the spring rod member (10) is spirally wound by a spring wire, a spiral pattern is naturally formed at both ends thereof, and the corresponding locking piece has a corresponding spiral groove section (221). The engaging member (20), or the engaging member (20) elastically latching the ring groove (212) by the coil as shown in the thirteenth and fourteenthth views, thus, the spring member disclosed in the present invention ( 10) After molding, no additional machining is required, and the joint members (20) at both ends can be stably connected to simplify the process and reduce the manufacturing cost.

In addition, the present invention can not be pulled in a plurality of relative offset characteristics by the elastic rods (30) axially inserted into the spring member (10), so as to avoid the radial relative action of the spring members (10). Force, resulting in a relatively large amount of offset motion; or by the helically tightly wound spring member (10), the inability to be compressed, to the axial relative compression force generated by the impedance of the spine, to obtain the vertebral body of the lesion Effective support and release.

The reed type spinal stabilization device for preventing migration is disclosed in the application, and the spring member (10) and the elastic rod (30) can be cut according to the use requirement, and the spring member (10) and the spring member (10) are The projectile rod (30) conforms to the required length and is straddlely mounted on the majority of the vertebral body (51) to protect the vertebral body (51) and the intervertebral disc (52) of the injured spine (50), so that the present invention It can be adjusted and installed according to the spine structure of different patients to meet the needs.

As shown in the sixth figure, the present invention discloses a reed type spinal stabilization device for preventing migration. In application, the pedicle screw (40) can be directly locked at any one of the reed members (10). The pedicle screw (40) includes a base (41), and a shank (411) is protruded from the bottom of the base (41) for nailing into the spine (50). And a pinch hole (412) is disposed on the base (41), and the pinhole (412) is provided with at least one protruding tooth (413) for respectively engaging the spring bar member (10). Between adjacent two coils, and in the clamping hole (412), a plug (42) is locked to clamp the spring member (10) between the clamping hole (412) and the plug (42). . However, the pedicle screw (40) described above is not the subject of the present invention, and other conventional pedicle screws (40) may be applied to the present invention without limitation.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the reed member (10) is such that the distance between adjacent two reeds approaches zero, that is, when the spine (50) When the relative axial force is applied, the compressible distance approaches zero, and in addition to obtaining effective support and pressure release of the vertebral body of the lesion, it is more effective to avoid damage to the injured spine due to excessive compression (50). Vertebral body (51) or intervertebral disc (52).

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein a reed line for forming the reed member (10) in a spiral tightly wound manner may have a circular, rectangular or other shape; or As shown in the fifteenth, sixteenth and seventeenth, on the opposite sides thereof, a convex portion (12a) and a concave portion (12b) are formed for mutual engagement, so that the formed spring member (10), the phase thereof The convex portion (12a) and the concave portion (12b) of the adjacent two coils are in meshing or oppositely stacked so that the adjacent coils are not radially offset. The convex portion (12a) and the concave portion (12b) may be corresponding rectangular convex portions and concave portions, tapered convex portions and concave portions or other convex portions and concave portions corresponding to each other, and the present invention does not limit its sectional shape.

The present invention discloses a reed type spinal stabilization device for preventing migration, as shown in the ninth figure, wherein the engaging member (20) for engaging the side end of the spring member (10) includes an engaging portion (21). And axially projecting a rod body (22) from one end of the engaging portion (21) to lock the pedicle screw (40), and axially on the end surface of the engaging portion (21) Those with at least one set of holes (23) are recessed.

As shown in the tenth figure, the above-mentioned rod body (22) can be threaded with a shaft hole (221) for locking on a fixed shaft to adjust the connecting member (20) when engaging the spring rod member (10). The angle is provided for the installation of a spinal stabilization device such as a cervical vertebra and a skull.

The connecting member (20) disclosed in the present invention, as shown in FIG. 11 , can be modified to include a rod body (22), and an engaging portion is axially protruded from each end of the rod body (22). 21), respectively, to connect the side ends of the spring member (10), and to make the end faces of the connecting portions (21) axially recessed At least one set of holes (23) to allow one end of the elastic rod (30) to penetrate therein; the present invention, when applied, allows the pedicle screw (40) to be locked at the engaging member (20) at two On the rod (22) between the connecting sections (21). The above-mentioned connecting member (20b), as shown in Fig. 12, allows the sleeves (23) of the engaging sections (21) at both ends to penetrate each other so that the elastic rods (30) can penetrate the engaging members ( 20b) and axially through the majority of the spring members (10).

The engaging member (20) disclosed in the present invention is as shown in the second, ninth, and twelfth drawings, wherein the engaging portion (21) is a spiral groove segment having a helix angle of the matching spring member (10) (211) The opposite ends of the engaging portion (21) of the connecting member (20) are as shown in the second and third figures, as shown in the second and third figures. There is a linkage portion (24) which can be rotated by a wrench or a screwdriver, such as a polygonal recess, a slot, a cross recess, a polygonal projection or an irregular projection, etc., so that the engaging member ( 20) A wrench or a screwdriver may be rotatably screwed to the side end of the spring body (10). Or a conical shape is formed at the opposite end of the engaging section (21) of the engaging member (20).

The connecting member (20) disclosed in the present invention, as shown in the thirteenth and fourteenth drawings, is provided with a ring groove (212) on the connecting portion (21) to make the spring member (10) The coil coil is elastically fastened in the ring groove (212) to firmly engage the spring member (10).

The connecting member (20) disclosed in the present invention can be made of a metal material, an alloy material, a plastic or a composite material, and the present invention is not limited to the material thereof.

The invention relates to a reed type spinal stabilization device for preventing migration, wherein the elastic rod (30) can be made of metal, carbon fiber, plastic... or a composite material such as PEEK, and the invention does not limit its material. . The elastic rods (30) described above may be in a straight line, a curved line or at an angle to conform to the human spine curve.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the outer edge of the reed member (10) can be further covered with a rubber sleeve (11, as shown in the eighth figure) to avoid human muscles. The tissue invades the spring member (10) during proliferation.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the reed member (10), as shown in the eighth figure, can be constituted by a plurality of layers of continuous coils, and the present invention is not limited.

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein the elastic rod (30) is configured such that both ends thereof are movably disposed in the sleeve holes (23) of the two engaging members (20), respectively. Or one end of the elastic rod (30) is fixed in the sleeve hole (23) of one of the engaging members (20), and the other end of the elastic rod (30) is in a movable state and is placed on the sleeve of the other connecting member (20). In the hole (23).

The present invention discloses a reed type spinal stabilization device for preventing migration, wherein a plurality of elastic rods (30) are interposed between the two engaging members (20), and the present invention does not limit the elastic rods (30). The number of people.

The reed type spinal stabilization device with anti-offset disclosed in the present invention, as shown in the sixth and seventh figures, is formed by a plurality of continuous coils due to the spring member (10) of the device on the side of the spine, which can be bent And stretching, in addition, the elastic rod (30) axially inserted in the spring member (10) can also be elastically bent with the movement of the spine (50), thus, the device of the present invention, when the spine (50) When the exercise is performed, the spring member (10) of the present invention can also be swung or stretched in conjunction with the vertebral bodies (51) of the spine (50) to simulate the movement of the normal spinal tissue to relieve or reduce the discomfort of the patient.

The reed type spinal stabilization device for preventing migration is characterized in that the reed member (10) is composed of a plurality of continuous coils, and the flexibility of stretching and bending is much better than that of cutting the groove with a rod. According to the spinal stabilization device disclosed in the present invention, when the patient moves, the force is transmitted to the entire spring member (10) and the elastic rod (30), and the vertebral body of the spine (50) ( 51) Twisting or swinging or stretching to achieve the distracting force, avoiding the concentration of the force on the vertebral body of the unconnected vertebrae, to avoid damage to the healthy vertebral body caused by excessive force or use, effectively reducing the medical device Use damage.

The present invention discloses a reed type spinal stabilization device for preventing migration. The reed member (10) can be tightly spirally wound by a spring wire, and the axial relative compression displacement is hardly allowed to be generated, and the vertebral body of the lesion can be effectively obtained. The support and release pressure causes the vertebral body (51) or the intervertebral disc (52) of the spine (50) to no longer be subjected to axial relative compression forces and is again injured.

According to the present invention, the reed type stabilizing device for preventing migration is characterized in that the reed member (10) is spirally wound by a spring wire, and after forming, a plurality of coils at both ends thereof are naturally formed. The inner hole or the external thread of the spiral groove can lock the connecting member (20) corresponding to the spiral groove (211); or directly elastically buckle the connecting member (20) having the ring groove (212) with the coil spring Therefore, the spring member (10) disclosed in the present invention does not need to be mechanically processed a plurality of times after molding (such as cutting a spiral groove, a milled hole, or a threaded hole), so the invention is extremely simple in manufacturing, The manufacturing cost can be greatly reduced, and the novelty and progress of the present invention are highlighted by the two cases of US 2007/0049937A1 and 7,329,258.

The structure and shape of the present invention can be modified and applied without departing from the spirit and scope of the present invention, and the present invention is not limited to the above embodiments.

(10)‧‧‧Spring rod components

(10a) (10b) ‧ ‧ both ends

(20) ‧‧‧Connecting members

(21) ‧‧‧Connecting segments

(211)‧‧‧Spiral slot

(23) ‧‧‧ hole

(30)‧‧‧Flex rods

(30a) (30b) ‧ ‧ both ends

(40) ‧ ‧ pedicle screws

(50) ‧ ‧ vertebrate

(51)‧‧‧ vertebral bodies

(52) ‧‧ ‧ intervertebral disc

Claims (15)

A reed type spinal stabilization device for preventing migration, which can be fastened by a plurality of pedicle screws, and is fixed to one side of the spine with each of the pedicle screws, the spinal stabilization device comprising: a spring member, a system The spring wire is spirally wound to form a longitudinal spring bar having a plurality of continuous coils; the two connecting members each have a connecting portion for fixedly engaging the two spring members And axially recessed on the opposite end faces of the two engaging members; and at least one elastic rod axially inserted into the spring member, and the two ends of the elastic rod , respectively, into the sleeve of the two connecting members. The reed type spinal stabilization device with anti-offset as described in claim 1, wherein the reed member is formed by spirally winding the spring wire so that the distance between adjacent two reeds approaches At zero. The reed-type spinal stabilization device with anti-offset according to the first aspect of the invention, wherein the reed wire for forming the reed member has opposite sides of the cross section, and forms a convex portion and a concave portion that can mesh with each other. The formed spring member is engaged with the convex portion and the concave portion of the adjacent two coils. The reed type spinal stabilization device according to claim 1, wherein the engaging member comprises an engaging portion, and a shaft body is axially protruded from one end of the engaging portion to be a vertebral arch The root screw locks the connector. The reed type spinal stabilization device with the anti-offset as described in claim 4, wherein the rod body of the engaging member is provided with a shaft hole for locking to a fixed shaft. A reed type spine stabilization device with offset prevention as described in claim 1 of the patent application, wherein the The connecting member comprises a rod body, and a connecting portion is axially protruded from each end of the rod body to respectively engage a spring rod member, and at least one of the end faces of the connecting portions is axially recessed Nester. The reed type spine stabilization device with anti-offset according to the sixth aspect of the invention, wherein the connecting member is such that the sleeves at the connecting ends of the two ends are interconnected. The reed type spinal stabilization device with the anti-offset as described in claim 1, wherein the engaging portion of the engaging member is a spiral groove segment having a helix angle of the reed spring member to be engaged with the same The side end of the spring member. The spring-type spinal stabilization device with the anti-offset as described in claim 1, wherein the connecting portion of the connecting member is provided with a ring groove, so that a part of the coil of the spring member is elastically fastened. In the ring groove. The reed type spinal stabilization device with anti-offset as described in claim 1, wherein the elastic rod is in a straight line, a curved line or an angle. The reed type spinal stabilization device with the anti-offset described in claim 1, wherein the outer edge of the reed member is further covered with a rubber sleeve. A reed type spinal stabilization device with a deviation prevention according to the first aspect of the invention, wherein the reed member is composed of a plurality of layers of continuous coils. The reed type spinal stabilization device according to claim 1, wherein the elastic rod has one end fixed to a sleeve hole of one of the engaging members. The reed type spinal stabilization device with the anti-offset described in claim 1, wherein a plurality of elastic rods are worn between the two connecting members. The reed type spinal stabilization device with the offset prevention according to the eighth aspect of the invention, wherein the opposite end of the engaging portion of the engaging member is provided with a linkage portion for the joint rotation of the wrench or the screwdriver.