Spine fixing device for orthopedics department

Abstract

The utility model relates to the technical field of spine fusion surgery, and discloses an orthopaedic spine fixing device which comprises a fusion cage body, the fusion cage body comprises a fusion plate and a fastener, the fusion plate comprises two spine fixing rings, two threaded holes are formed in the front of each spine fixing ring, and the fastener is arranged in the middle of each spine fixing ring. The fastening device comprises an intervertebral disc fixing ring, the intervertebral disc fixing ring is used for removing and filling the intervertebral disc and then stabilizing the connecting position of the two sections of the spine, the opening directions of the intervertebral disc fixing ring and the spine fixing ring are opposite, and the intervertebral disc fixing ring is tightly arranged at the connecting position of the two sections of the spine in a sleeving mode through the fusion plate and the fastening device. The device can reinforce the mechanical structure after the original intervertebral disc tissue is removed, meanwhile provides lateral supporting force for the fused spine, and further reinforces and connects the whole device through the threaded plate and the fixed threaded rod, so that the spine structure of a postoperative patient is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of spinal fusion operation technique, more particularly to a kind of orthopedics spinal fixation device. BACKGROUND

[0002] In the treatment of spinal fracture, lumbar disc herniation and spondylolisthesis in spinal surgery and neurosurgery, fusion surgery is a routine operation. After removing the intervertebral disc, an artificial steel plate is used as a backing plate. The steel nail is driven into the spinal bone, and the steel plate is used to fix multiple steel nails, which can complete the fusion operation of two sections of spine.

[0003] The traditional steel nail and metal plate structure is prone to loosening after long-term bearing of spinal stress, resulting in poor fixation and increasing the risk of secondary surgery. Since the spine is still subjected to stress during daily activities after surgery, the steel nail or metal plate may gradually loosen under slight vibration or pressure change, making it difficult to maintain the fixation effect of the fusion site. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an orthopedic spinal fixation device to solve the problems existing in the above background art.

[0005] The utility model provides the following technical scheme: an orthopedic spinal fixation device, comprising a fusion device main body, the fusion device comprises a fusion plate and a fastener, the fusion plate comprises a spinal fixation ring, the number of the spinal fixation ring is two, two threaded holes are formed in the front of the spinal fixation ring, fusion steel nails are arranged in the threaded holes, the fastener is arranged on the fusion plate, and the fastener comprises:

[0006] Intervertebral disc fixation ring, which is used to stabilize the connection between two sections of spine after removing and filling the intervertebral disc, and the opening direction of the intervertebral disc fixation ring and the spinal fixation ring is opposite;

[0007] Threaded plate, which is installed on both sides of the spinal fixation ring and the intervertebral disc fixation ring, and is used to rotate and install the fixed threaded rod;

[0008] Fixed threaded rod, the number of which is two, it penetrates and is installed on the threaded plates of two spinal fixation rings and intervertebral disc fixation rings, so that two intervertebral disc fixation rings and intervertebral disc fixation rings are connected into one body by the fixed threaded rod, and the whole device is fixed;

[0009] Bite threaded rod, the number of which is two, it is installed on one side of the front opening of the intervertebral disc fixation ring, and is used to tighten the intervertebral disc fixation ring, so that the intervertebral disc fixation ring is more firmly attached to the spinal connection.

[0010] By tightly sleeving the intervertebral disc fixing ring at the connecting position of the two sections of the spine, the mechanical structure after the original intervertebral disc tissue is removed can be reinforced, and lateral supporting force is provided to the fused spine.

[0011] Further, the penetration installation directions of the clamping threaded rods are opposite to each other, and the ends of the clamping threaded rods are tightly installed with fixed nuts, so that the two clamping threaded rods installed in opposite directions can generate greater torque under external force after being further fixed by the fixed nuts, thereby preventing the intervertebral disc fixing ring and the clamping threaded rods from loosening.

[0012] Further, the inner surfaces of the spine fixing rings are uniformly and fixedly installed with a plurality of fastening bone spurs, and the ends of the fastening bone spurs are in the form of spikes, so that the fastening bone spurs can slightly penetrate into the bone after the spine fixing ring is installed on the spine to be fused, thereby preventing the spine fixing ring from sliding under external force.

[0013] Further, the inner walls of the spine fixing ring and the intervertebral disc fixing ring are fixedly installed with biological coatings, and the biological coatings are biological ceramic coatings, so that the biological coatings can improve the biocompatibility of the implant, reduce the risk of foreign body sensation and infection, and improve the comfort of the patient after the operation.

[0014] Further, the interiors of the fusion steel nails are provided with hollow grooves, and the interiors of the hollow grooves are filled with bone growth materials, and the bone growth materials are calcium phosphate bone cement, so that the hollow grooves can be filled with the bone growth materials after the fusion steel nails are driven into the spine, so that the fusion steel nails and the bone are further filled and fixed.

[0015] Further, the inner walls of the spine fixing ring are provided with a plurality of bone growth grooves, so that the bone growth grooves can provide additional growth space for the spine bone, so that the spine fixing ring can be more firmly attached to the spine bone.

[0016] The technical effects and advantages of the present application are as follows:

[0017] 1. The present application is provided with a fusion plate and a fastener, and the intervertebral disc fixing ring is tightly sleeved at the connecting position of the two sections of the spine, so that the mechanical structure after the original intervertebral disc tissue is removed can be reinforced, and lateral supporting force is provided to the fused spine, the threaded plate and the fixed threaded rod further reinforce and connect the whole device, so that the spine structure of the patient after the operation is more stable.

[0018] 2. The present application is provided with a fastening bone spur, which can slightly penetrate into the bone after the spine fixing ring is installed on the spine to be fused, so as to prevent the spine fixing ring from sliding under external force. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the structure of the present application.

[0020] Figure 2 It is a three-dimensional schematic view of the intervertebral disc fixing ring structure of the utility model.

[0021] Figure 3 It is a three-dimensional schematic view of the structure rear view of the utility model.

[0022] Figure 4 It is a three-dimensional schematic view of the structure rear view of the utility model.

[0023] The reference signs are: 100, spinal column fixing ring;110, intervertebral disc fixing ring;111, fusion steel nail;112, threaded plate;113, fixed threaded rod;114, occlusal threaded rod;115, fixed nut;116, fastening bone spur;117, biological coating;118, hollow groove;119, bone growth groove. DETAILED DESCRIPTION

[0024] The technical solutions in the utility model will be clearly and completely described below with reference to the drawings in the utility model.

[0025] Example one:

[0026] Reference Figure 1 and Figure 2 The utility model provides a kind of orthopedics spinal column fixing device, including fusion ware main body, fusion ware includes fusion plate and fastener, and fusion plate includes spinal column fixing ring 100, the quantity of spinal column fixing ring 100 is two, two threaded holes are set in the front of spinal column fixing ring 100, fusion steel nail 111 is all arranged in threaded hole, and fastener is set on fusion plate, and fastener includes:

[0027] Intervertebral disc fixing ring 110, the intervertebral disc fixing ring 110 is used to be removed after filling, the connecting place of two sections of spinal column is stabilized, and the opening direction of intervertebral disc fixing ring 110 and spinal column fixing ring 100 is opposite;

[0028] Threaded plate 112, the threaded plate 112 is installed on the two sides of spinal column fixing ring 100 and intervertebral disc fixing ring 110, to be used to rotate installation fixed threaded rod 113;

[0029] Fixed threaded rod 113, the quantity of fixed threaded rod 113 is two, it is installed on the threaded plate 112 of two spinal column fixing ring 100 and intervertebral disc fixing ring 110, so that two intervertebral disc fixing ring 110 and intervertebral disc fixing ring 110 are connected into an organic whole by fixed threaded rod 113, to be used to fix entire device;

[0030] The number of the occluded threaded rods 114 is two, which are installed on one side of the front opening of the intervertebral disc fixing ring 110 to fasten the intervertebral disc fixing ring 110, so that the intervertebral disc fixing ring 110 is more firmly attached to the connection of the two sections of the spine.

[0031] By tightly fitting the intervertebral disc fixing ring 110 at the connection of the two sections of the spine, the mechanical structure after the original intervertebral disc tissue is removed can be reinforced, and lateral support force is provided to the fused spine.

[0032] The penetration installation direction of the occluded threaded rods 114 is opposite to each other, and the end of the occluded threaded rods 114 is tightly installed with a fixed nut 115. After being further fixed by the fixed nut 115, the two occluded threaded rods 114 installed in opposite directions can generate greater torque under external force, preventing the intervertebral disc fixing ring 110 and the occluded threaded rods 114 from loosening.

[0033] Working principle: After removing the intervertebral disc and filling the pad, first install the spinal fixation ring 100 on the two sections of the spine, then fit the intervertebral disc fixing ring 110 at the connection surface of the two sections of the spine, after the intervertebral disc fixing ring 110 is installed, rotate the intervertebral disc fixing ring 110 to make the opening face the knife edge, which is convenient for installing the occluded threaded rods 114 for fixation, then penetrate the two fixed threaded rods 113 on the threaded plate 112 to fix the two spinal fixation rings 100 and the intervertebral disc fixing ring 110, and finally, the fusion steel nails 111 are nailed into the spine to increase the overall structural strength and stability of the spine after fusion surgery

[0034] Example two:

[0035] Reference Figure 1 The difference between example two and example one is that a plurality of fastening spines 116 are uniformly and fixedly installed on the inner surface of the spinal fixation ring 100, and the end of the fastening spine 116 is in the form of a sharp spine. After the spinal fixation ring 100 is installed on the spine to be fused, the fastening spine 116 can slightly penetrate into the bone to prevent the spinal fixation ring 100 from sliding under external force.

[0036] The inner wall of the spinal fixation ring 100 and the intervertebral disc fixing ring 110 is fixedly installed with a biological coating 117, and the biological coating 117 is a biological ceramic coating. The biological coating 117 can improve the biocompatibility of the implant, reduce the risk of foreign body sensation and infection, and improve the comfort of the patient after the operation.

[0037] The inner part of the fusion steel nail 111 is provided with a hollow groove 118, the inner part of the hollow groove 118 is filled with bone growth material, the bone growth material is calcium phosphate bone cement, the hollow groove 118 can be filled with bone growth material after the fusion steel nail 111 is nailed into the spine, so that the fusion steel nail 111 and the bone are further filled and fixed.

[0038] The inner wall of the spinal column fixing ring 100 is provided with a plurality of bone growth grooves 119, which can provide additional growth space for the spinal column bone, so that the spinal column fixing ring 100 can be more firmly combined with the spinal column bone.

[0039] Working principle: the calcium phosphate bone cement used in the hollow groove 118 can further bond the gap between the fusion steel nail 111 and the spinal column bone after being filled into the hollow groove 118, so that the fusion steel nail 111 is less likely to fall off after the operation.

Claims

1. An orthopedic spinal fixation device comprising a cage body, characterized in that, The fusion device comprises a fusion plate and a fastener, the fusion plate comprises two spinal fixation rings (100), two threaded holes are formed in the front of each spinal fixation ring (100), and a fusion steel nail (111) is arranged in each threaded hole. An intervertebral disc fixation ring (110) is used to stabilize the connection between two spinal segments after the intervertebral disc is removed and filled, and the opening direction of the intervertebral disc fixation ring (110) is opposite to that of the spinal fixation ring (100). A threaded plate (112) is installed on both sides of the spinal fixation ring (100) and the intervertebral disc fixation ring (110) to rotate and install a fixed threaded rod (113). The fixed threaded rod (113) is installed through the threaded plates (112) of the two spinal fixation rings (100) and the intervertebral disc fixation ring (110), so that the two intervertebral disc fixation rings (110) and the intervertebral disc fixation ring (110) are connected into one body by the fixed threaded rod (113) to fix the entire device. Two occlusion threaded rods (114) are installed on one side of the front opening of the intervertebral disc fixation ring (110) to tighten the intervertebral disc fixation ring (110) and make it more firmly attached to the spinal connection. By tightly fitting the intervertebral disc fixation ring (110) around the connection between two spinal segments, the mechanical structure of the removed intervertebral disc tissue can be reinforced, and lateral support force can be provided to the fused spine.

2. The spinal fixation device of claim 1 wherein: The penetration installation direction of the occlusion threaded rods (114) is opposite to each other, and the end of the occlusion threaded rods (114) is tightly installed with a fixed nut (115). After being further fixed by the fixed nut (115), the two occlusion threaded rods (114) installed in opposite directions can generate greater torque under external force, preventing the intervertebral disc fixation ring (110) and the occlusion threaded rod (114) from loosening.

3. The spinal fixation device of claim 1 wherein: A plurality of fastening spines (116) are uniformly fixed and installed on the inner surface of the spinal fixation ring (100), and the end of the fastening spine (116) is in the form of a spike. After the spinal fixation ring (100) is installed on the spine to be fused, the fastening spine (116) can slightly penetrate into the bone to prevent the spinal fixation ring (100) from sliding under external force.

4. The spinal fixation device of claim 1 wherein: A biological coating (117) is fixed and installed on the inner wall of the spinal fixation ring (100) and the intervertebral disc fixation ring (110), and the biological coating (117) is a biological ceramic coating. The biological coating (117) can improve the biocompatibility of the implant, reduce the risk of foreign body sensation and infection, and improve the comfort of the patient after the operation.

5. The spinal fixation device of claim 1 wherein: The inside of the fusion steel nail (111) is provided with a hollow groove (118), the inside of the hollow groove (118) is filled with bone growth material, the bone growth material is calcium phosphate bone cement, the hollow groove (118) can be filled with bone growth material after the fusion steel nail (111) is nailed into the spine, so that the fusion steel nail (111) and the bone are further filled and fixed.

6. The spinal fixation device of claim 1 wherein: The inner wall of the spine fixing ring (100) is provided with a plurality of bone growth grooves (119), which can provide additional growth space for the spine, so that the spine fixing ring (100) can be more firmly combined with the spine.

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