CN114343810A - Intelligent fixing system for occipital cervical posterior composite joint - Google Patents
Intelligent fixing system for occipital cervical posterior composite joint Download PDFInfo
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- CN114343810A CN114343810A CN202210047712.3A CN202210047712A CN114343810A CN 114343810 A CN114343810 A CN 114343810A CN 202210047712 A CN202210047712 A CN 202210047712A CN 114343810 A CN114343810 A CN 114343810A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7044—Screws or hooks combined with longitudinal elements which do not contact vertebrae also having plates, staples or washers bearing on the vertebrae
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- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
- A61B17/7052—Connectors, not bearing on the vertebrae, for linking longitudinal elements together of variable angle or length
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7055—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant connected to sacrum, pelvis or skull
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
Abstract
The invention relates to a occipital cervical posterior composite joint fixing system which comprises a skull component, a cervical vertebra component and a connecting component, wherein the skull component is used for connecting occipital bones, the cervical vertebra component is used for connecting cervical vertebrae, one end of the connecting component is rotatably connected with the skull component, and the other end of the connecting component is fixedly connected with the cervical vertebra component; or one end of the connecting part is fixedly connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part; or one end of the connecting part is rotatably connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part. Compared with the traditional occipital cervical fixing system, the cervical vertebra cervical fixing system has the advantages that the head and the neck of a patient can have a certain range of deviation function, the cervical vertebra flexion and extension function is realized, and convenience is brought to postoperative life and work of the patient. In the connecting component, a height-adjustable limiting component is further arranged, and the deviation degree of the skull component relative to the vertical state is limited by adjusting the height of the limiting component.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a occipital cervical posterior composite joint fixing system.
Background
In recent years, with the continuous development of internal fixation technology, the internal fixation system of the posterior cervical pillow is continuously improved, and the bone grafting fusion operation on the basis of correctly selecting the internal fixation has a plurality of benefits for postoperative recovery and allows MRI examination after the operation. The Cervifix system and the Summit system are commonly used clinically.
Neck pillow fusion internal fixation technique indications include:
1. unstable upper neck caused by atlanto-axial and epistaxis fracture and atlas transverse ligament injury, which can not be restored or is not ideal.
2. After the removal of the focus of tuberculosis of the atlas and the axis, the focus is stable, but the focus is accompanied with unstable cervical vertebra synostosis.
3. After the tumor resection of the upper cervical vertebra, or for benign lesions, stabilization is required.
4. Unstable or dislocated upper cervical vertebra due to rheumatoid cervical spondyloarthritis.
5. Occipital cervical developmental deformity with instability, with or without comorbidities with spinal cord compression.
It is emphasized that the cervical vertebra and the upper thoracic vertebra are extremely unstable due to the destruction of the front column of the spine caused by tumor, fracture, infection and the like, and the fixation by only Cervifix is not enough, so that the stable reconstruction of the anterior path must be carried out at the same time.
The utility model patent with patent publication number CN212234642 discloses a system for fixing and fusing the occipital neck: comprises an axis vertebral pedicle screw, an occipital plate, a posterior cervical transverse connection and a connecting rod; the occipital plate comprises a central line plate, a left wing plate and a right wing plate which are connected into a whole, the left wing plate and the right wing plate are stacked on two sides of the central line plate, sliding grooves and side wing fixing holes are formed in the left wing plate and the right wing plate, and occipital fixing holes are formed in the central line plate; when the vertebra dentata pedicle screw is used, the vertebra dentata pedicle screw is implanted into bone tissue of a dentata of a patient, the occipital bone plate is fixed on an occipital bone of the patient, the vertebra dentata pedicle screw is connected with the occipital bone plate through the connecting rod, and the connecting rods on the two sides are transversely connected through a posterior cervical path.
However, the existing neck-pillow fusion technology has the following defects:
1. after the occipital neck is fused, the neck deviation function of the patient is limited, and the patient is inconvenient to drive in daily life and work;
2. the cervical vertebra flexion and extension functions are limited, especially the head nodding and head burying actions, and the visual field of going downstairs is limited;
3. the fixed angle is single, the influence on the life is large, and some patients have complications such as dysphagia after operation.
Disclosure of Invention
The application provides a occipital posterior compound joint fixing system for solving the technical problems.
The application is realized by the following technical scheme:
a occipital cervical posterior composite joint fixing system comprises a skull component, a cervical vertebra component and a connecting component, wherein the skull component is used for connecting an occipital bone, the cervical vertebra component is used for connecting a cervical vertebra, one end of the connecting component is rotatably connected with the skull component, and the other end of the connecting component is fixedly connected with the cervical vertebra component;
or one end of the connecting part is fixedly connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part;
or one end of the connecting part is rotatably connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part. In the process of occipital cervical fusion, the head and the neck of a patient can have a certain range of deviation function through rotatable connection, the cervical vertebra flexion and extension function is realized, and convenience is brought to postoperative life and work of the patient.
Preferably, one end of the connecting component is in spherical hinge connection with the skull component, and the other end of the connecting component is fixedly connected with the cervical vertebra component;
or one end of the connecting part is fixedly connected with the skull part, and the other end of the connecting part is in spherical hinge connection with the cervical vertebra part;
or one end of the connecting part is connected with the skull part in a spherical hinge mode, and the other end of the connecting part is connected with the cervical vertebra part in a spherical hinge mode.
Furthermore, the connecting part comprises a connecting rod, a sphere and a hollow cylinder, the bottom of the skull part is provided with a groove matched with the sphere, the sphere is arranged in the groove, one end of the connecting rod is connected with the sphere so that the connecting rod, the sphere and the groove form a spherical hinge structure, the other end of the connecting rod is inserted into the cylinder and connected with the bottom surface of the cylinder, and the bottom of the cylinder is fixedly connected with the cervical vertebra part;
or the connecting part comprises a connecting rod, a sphere and a cylinder with a hollow upper part and a solid lower part, the middle part of the cylinder is provided with a groove matched with the sphere, one end of the connecting rod is connected to the bottom of the skull part through a screw, the other end of the connecting rod is inserted into the cylinder and connected with the sphere arranged in the groove, the connecting rod, the sphere and the groove form a spherical hinge structure, and the bottom of the cylinder is fixedly connected with the cervical vertebra part;
or, the connecting part comprises a connecting rod, a first sphere, a second sphere and a cylinder with a hollow upper part and a solid lower part, the middle of the cylinder is provided with a second groove matched with the second sphere, the bottom of the skull part is provided with a first groove matched with the first sphere, the first sphere is arranged in the first groove, one end of the connecting rod is connected with the first sphere so that the connecting rod, the first sphere and the first groove form a spherical hinge structure, the other end of the connecting rod is inserted into the cylinder and connected with the second sphere arranged in the second groove, the connecting rod, the second sphere and the second groove form a spherical hinge structure, and the bottom of the cylinder is fixedly connected with the cervical vertebra part.
Furthermore, the adjustable skull bone component further comprises an adjustable limiting component, the contact height of the skull bone component and the limiting component can be changed by adjusting the height of the limiting component, so that the deviation degree of the skull bone component in the relative vertical state is limited, the higher the limiting component moves towards the direction of the skull bone component, the earlier the skull bone component touches the limiting component in the process of deviation under the driving of the brain, and the deviation limiting of the skull bone component in different occipital neck fusion stages can be realized.
Preferably, the limiting assembly comprises a threaded sleeve, the threaded sleeve is sleeved outside the column body or is sleeved in the column body and extends into the column body, the threaded sleeve is in threaded connection with the column body, and the threaded sleeve can move up and down along the height direction of the column body to limit the deviation of the skull part.
Furthermore, the inner wall of the threaded sleeve is provided with internal threads, the outer surface of the cylinder is provided with an external thread section matched with the internal threads, and a gap is reserved between the top of the external thread section and the top of the cylinder;
or the outer surface of the threaded sleeve is provided with an external thread, the inner wall of the column body is provided with an internal thread section matched with the external thread, and a gap is reserved between the top of the internal thread section and the top of the column body. So that the threaded sleeve can not continuously screw up along the height direction of the column body at the top of the column body, and the threaded sleeve is prevented from slipping off the column body.
Furthermore, the bottom surface of the threaded sleeve is provided with an annular groove, one end of the spring is inserted into the annular groove and can slide along the annular groove, and the other end of the spring is fixedly connected to the column body. When the threaded sleeve spirally rises or descends along the height direction of the column body, the spring also extends or shortens along with the threaded sleeve, but the spring cannot rotate along with the threaded sleeve, and the downward pulling force can be given to the threaded sleeve to prevent the threaded sleeve from slipping off the column body.
Preferably, a small ball capable of sliding along the annular groove is arranged in the annular groove, one end of the spring is connected with the annular groove through the small ball, and when the threaded sleeve spirally rises or spirally falls along the height direction of the column body, the small ball slides in the annular groove, so that the spring is always kept in a vertical state and downward tension is applied to the threaded sleeve.
Furthermore, the adjustable screw column further comprises an external adjusting component, the adjusting component drives the screw sleeve to spirally rise or spirally fall along the height direction of the column body through an electromagnetic field, and the height of the screw sleeve can be prevented from being adjusted through a secondary operation.
Preferably, the adjusting part includes the magnet piece, and the magnet piece is the structure of four different magnet piece cross arrangements of magnetic pole, the threaded sleeve also is the structure of four different magnet piece cross arrangements of magnetic pole, and threaded sleeve is along cylinder direction of height spiral rising or spiral decline under the drive of magnet piece.
Furthermore, the skull bone connecting component comprises a soft attachment sleeve film, the outer side between the bottom of the skull bone component and the bottom of the connecting component is wrapped with a layer of soft attachment sleeve film, so that the attachment of the threaded sleeve in a human body by muscle fasciae growing around can be avoided, and secondary injuries such as muscle tearing and the like can be avoided when the threaded sleeve is spirally lifted or spirally descended.
Preferably, the ball bearing is further included, and the ball bearing is arranged between the ball body and the groove, so that the friction force on the surface of the groove can be increased.
Further, the cervical vertebra subassembly includes the barred body, first pressure sensor and the first wireless transmission module that two intervals set up, and two barred bodies are used for being connected with the pedicle of vertebral arch respectively, has laid three first pressure sensor along barred body length direction interval on the every barred body, and first pressure sensor all connects first wireless transmission module. By adopting the structure, the osseointegration and the loosening of the interface of the inner plant and the skull can be monitored, and the loosening of the connecting part of the rod body can also be monitored.
Furthermore, the skull component also comprises a bone plate, two second pressure sensors and a second wireless transmission module, wherein the middle part of the bone plate is provided with four second pressure sensors, the two second pressure sensors are arranged at the upper part and the lower part respectively, the two second pressure sensors at the upper part are arranged at intervals along the horizontal direction, and the two second pressure sensors at the lower part are arranged at intervals along the horizontal direction;
three third pressure sensors are arranged on the connecting rod at intervals along the length direction of the connecting rod, and the second pressure sensor and the third pressure sensors are connected with the second wireless transmission module. The structure can monitor the osseointegration and loosening of the interface of the inner plant and the skull and can also monitor the loosening of the connecting part of the bone plate and the connecting rod.
Compared with the prior art, the method has the following beneficial effects:
1. compared with the traditional occipital neck fixing system, the occipital neck fixing system has the advantages that the head and the neck of a patient can have a certain range of deviation function in the occipital neck fusion process and after fusion, limitation of the cervical vertebra flexion and extension function can be avoided, normal nodding and countersunk can be realized, and convenience is brought to postoperative life and work of the patient.
2. In the connecting part, the contact height of the skull part and the limiting assembly is further changed by adjusting the height of the limiting assembly to limit the deviation degree of the skull part in a relative vertical state, the higher the limiting assembly moves towards the skull part, the earlier the skull part can touch the limiting assembly in the process of deviation under the driving of the brain, and further the deviation limitation of the skull part in different occipital neck fusion stages can be realized.
3. The limiting component is prevented from slipping off the column body by not providing threads on the top of the column body and arranging a spring.
4. The external adjusting component drives the limiting component to rotate and move up and down through an electromagnetic field, and the height of the limiting component can be prevented from being adjusted through a secondary operation.
5. The first pressure sensor, the second pressure sensor and the third pressure sensor can monitor osseointegration and loosening conditions of an inner plant-skull interface, can also respectively detect loosening conditions of connecting parts such as the rod body, the bone plate and the connecting rod, and can respectively transmit data through the first wireless transmission module and the second wireless transmission module.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention.
FIG. 1 is a schematic view showing the structure of a film without a soft adhesive cover according to a first embodiment;
FIG. 2 is a schematic view of a soft cling film in accordance with one embodiment;
FIG. 3 is a first connection mode of the connection member in the first embodiment;
FIG. 4 is a second connection of the connecting members of the first embodiment;
FIG. 5 is an implementation manner of the third embodiment;
FIG. 6 is another implementation of example three;
FIG. 7 is a bottom view at A-A of FIG. 6;
FIG. 8 is an operational schematic diagram of a fourth embodiment;
FIG. 9 is a schematic structural view of the fifth embodiment;
FIG. 10 is a schematic structural view of the sixth embodiment.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example one
With reference to fig. 1-4, the occipital-cervical posterior composite joint fixing system comprises a skull component 1, a cervical vertebra component 2 and a connecting component 3, wherein the skull component 1 is used for connecting occipital bones, and the cervical vertebra component 2 is used for connecting cervical vertebrae.
The outer side from the bottom of the skull part 1 to the bottom of the connecting part 3 is wrapped with a layer of soft attachment mantle 4.
The connecting member 3 includes a connecting rod 5, a sphere 6 and a cylinder 8.
In order to realize the functions of head and neck deviation and cervical vertebra flexion and extension in the occipital-cervical fusion process and after fusion, three spherical hinge connection modes are arranged between the connecting component 3 and the skull component 1 and between the connecting component 3 and the cervical vertebra component 2:
the first connection mode is specifically as follows: as shown in figure 3, the column body 8 is of a hollow structure, the bottom of the skull part 1 is provided with a groove 10 matched with the sphere 6, the sphere 6 is arranged in the groove 10, one end of the connecting rod 5 is connected with the sphere 6 so that the connecting rod 5, the sphere 6 and the groove 10 form a spherical hinge structure, the other end of the connecting rod 5 is inserted into the column body 8 and is connected with the bottom surface of the column body 8, and the bottom of the column body 8 is fixedly connected with the cervical vertebra part 2. In this embodiment, the skull part 1 and the connecting part 3 are rotatably connected, and the cervical part 2 and the connecting part 3 are fixedly connected.
The second connection mode is specifically as follows: as shown in figure 4, the connecting part 3 comprises a connecting rod 5, a sphere 6 and a cylinder 8 with a hollow upper part and a solid lower part, wherein the middle part of the cylinder 8 is provided with a groove 10 matched with the sphere 6, one end of the connecting rod 5 is connected to the bottom of the skull part 1 through a screw 9, the other end of the connecting rod 5 is inserted into the cylinder 8 and connected with the sphere 6 arranged in the groove 10, the connecting rod 5, the sphere 6 and the groove 10 form a spherical hinge structure, and the bottom of the cylinder 8 is fixedly connected with the cervical vertebra part 2. In this embodiment, the skull part 1 is fixedly connected with the connecting part 3, and the cervical part 2 is rotatably connected with the connecting part 3.
In order to increase the friction on the surface of the groove 10, a ball 11 is arranged between the ball 6 and the groove 10.
The third connection mode is specifically as follows: adapting unit 3 includes connective bar 5, first spheroid, the solid cylinder 8 in second spheroid and the cavity lower part in upper portion, 8 middle parts of cylinder are equipped with the second recess with second spheroid adaptation, 1 bottom of skull part is equipped with the first recess with first spheroid adaptation, first spheroid is arranged in first recess, first spheroid is connected so that the connective bar 5 to 5 one end of connective bar, first spheroid and first recess form the ball hinge structure, 5 other ends of connective bar insert the cylinder 8 and connect the second spheroid of arranging in the second recess, connective bar 5, second spheroid and second recess form the ball hinge structure, 8 bottom fixed connection cervical vertebra parts 2 of cylinder. In this connection, the skull bone part 1 and the connecting part 3 are rotatably connected, and the cervical vertebra part 2 and the connecting part 3 are also rotatably connected.
Example two
As shown in fig. 1 to 4, in the first embodiment, in order to limit the deviation degree of the skull part 1 in a relatively vertical state, a threaded sleeve 7 is further provided, the threaded sleeve 7 is sleeved outside the column 8 or the threaded sleeve 7 is sleeved inside the column 8, and the threaded sleeve 7 is in threaded connection with the column 8.
The working principle of the embodiment is as follows: the threaded sleeve 7 can spirally rise or spirally fall along the height direction of the column body 8, so that the deviation of the skull part 1 can be limited by adjusting the height of the threaded sleeve 7, the higher the threaded sleeve 7 moves towards the skull part 1, the earlier the skull part 1 can touch the threaded sleeve 7 in the deviation process under the driving of the brain, and further the deviation limitation of the skull part 1 in different occipital neck fusion stages can be realized.
EXAMPLE III
On the basis of example two, in order to avoid the threaded sleeve 7 slipping off the column 8, there are two embodiments:
one embodiment is: as shown in fig. 5, the inner wall of the threaded sleeve 7 is provided with an internal thread 14, the outer surface of the column 8 is provided with an external thread section 13 matched with the internal thread 14, and a gap is formed between the top of the external thread section 13 and the top of the column 8;
or the outer surface of the threaded sleeve 7 is provided with an external thread, the inner wall of the column body 8 is provided with an internal thread section matched with the external thread, and a gap is reserved between the top of the internal thread section and the top of the column body 8.
The working principle is as follows: when the electromagnet block 12 attracts the screw sleeve 7 to screw up or screw down, the screw cannot be further screwed up when reaching the top of the column 8 because the top of the column 8 is not provided with a screw thread, thereby preventing the screw sleeve 7 from slipping off the top of the column 8.
Another embodiment is: referring to fig. 6 to 7, the bottom surface of the threaded sleeve 7 is provided with an annular groove 15, one end of a spring 16 is inserted into the annular groove 15 and can slide along the annular groove 15, and the other end of the spring 16 is fixedly connected to the column 8.
The working principle is as follows: when the threaded sleeve 7 is driven by the electromagnet block 12 to spirally rise or spirally fall, the small ball 17 slides in the annular groove 15, so that the spring 16 does not rotate along with the threaded sleeve 7, the spring 16 always keeps a vertical state and gives a downward pulling force to the threaded sleeve 7, and the threaded sleeve 7 cannot slip off the column body 8. The length from the position where the electromagnet block 12 drives the threaded sleeve 7 to rotate upwards is measured, the length from the position where the electromagnet block 12 drives the threaded sleeve 7 to the joint of the spring 16 at the lowest position is selected, and the corresponding spring 16 can be selected, so that the force of the spring 16 can be equal to the force driven by the electromagnet block 12 when the electromagnet block 12 drives the threaded sleeve 7 to reach the upper limit position, and the limiting function is achieved. In the specific operation process, a mechanical sensor is not needed, and only in-vitro test is needed, which is not described in detail herein.
Example four
As shown in fig. 8, in addition to the third embodiment, in order to avoid adjusting the height of the threaded sleeve 7 by a secondary operation at different neck pillow fusion stages, an electromagnet block 12 is added externally, the electromagnet block 12 is a structure in which four magnets with different magnetic poles are arranged in a crossed manner, the threaded sleeve 7 is also a structure in which four magnets with different magnetic poles are arranged in a crossed manner, and the threaded sleeve 7 is driven by the electromagnet block 12 to spirally rise or spirally fall along the height direction of the column 8.
The working principle of the invention is as follows: since the column 8 is fixed, the threaded sleeve 7 rotates clockwise or counterclockwise when the external electromagnet 12 is energized to generate a magnetic field, and spirally rises or descends along the height direction of the column 8, thereby limiting the displacement of the skull part 1.
Specifically, the electromagnet block 12 attracts the threaded sleeve 7 to rotate by utilizing the principle that like poles of magnets repel and unlike poles of magnets attract. When electromagnet 12 clockwise turning, the S utmost point of electromagnet 12 attracts the N utmost point of threaded sleeve 7 to make threaded sleeve 7 anticlockwise rotation, electromagnet 12 clockwise turning to 90 degrees after, the S utmost point of electromagnet 12 attracts the S utmost point of threaded sleeve 7 to continue to rotate, so rotate in succession, because cylinder 8 is fixed motionless, consequently it can produce upwards or decurrent removal at threaded sleeve 7 in-process that electromagnet 12 drove the rotation, thereby realize the purpose of threaded sleeve 7 spiral rising or spiral decline.
EXAMPLE five
As shown in fig. 9, on the basis of the first embodiment, the cervical vertebra assembly 2 includes two rods 18 arranged at intervals, first pressure sensors 19 and a first wireless transmission module 20, the two rods 18 are respectively used for connecting with the pedicle of a vertebra, three first pressure sensors 19 are arranged on each rod 18 at intervals along the length direction of the rod 18, and the first pressure sensors 19 are connected with the first wireless transmission module 20.
The first pressure sensor 19 employs a strain gauge pressure sensor membrane structure.
The working principle of the embodiment is as follows: when the first pressure sensor 19 is subjected to an external force, the length and the cross-sectional area of the first pressure sensor are changed, and the resistance value of the first pressure sensor is changed; when the first pressure sensor 19 is compressed by an external force, the length decreases and the cross section increases, and the resistance value decreases. The strain of the first pressure sensor 19 can be obtained by measuring the change in the voltage across the resistor.
The first pressure sensor 19 is connected with the first wireless transmission module 20, when the force changes, the first pressure sensor 19 outputs electric signals with different voltage magnitudes, and the electric signals are finally transmitted out through the first wireless transmission module 20.
EXAMPLE six
As shown in fig. 10, on the basis of the first embodiment, the skull component 1 further comprises a bone plate 21, two second pressure sensors 22 and a second wireless transmission module 23, wherein four second pressure sensors 22 are arranged in the middle of the bone plate 21, two second pressure sensors 22 are arranged above and below, two second pressure sensors 22 are arranged at intervals along the horizontal direction, and two second pressure sensors 22 are arranged below and arranged at intervals along the horizontal direction;
three third pressure sensors 24 are arranged on the connecting rod 5 along the length direction of the connecting rod 5 at intervals, and the second pressure sensor 22 and the third pressure sensors 24 are connected with the second wireless transmission module 23. The second pressure sensor 22 and the third pressure sensor 24 also adopt a strain gauge pressure sensor thin film structure.
The working principle of the embodiment is as follows: when the force is changed, the second pressure sensor 22 and the third pressure sensor 24 output electric signals with different voltage magnitudes, and the electric signals are finally transmitted out through the second wireless transmission module 23, so that the bone integration and loosening conditions of the inner plant-skull interface can be monitored through the structure, and the loosening conditions of the connection parts of the bone plate 21 and the connecting rod 5 can also be monitored.
The above embodiments are provided to explain the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (14)
1. The utility model provides a compound joint fixing system of way of occipital neck escape, includes skull part and cervical vertebra part, its characterized in that: the skull bone connecting device further comprises a connecting part, one end of the connecting part is rotatably connected with the skull bone part, and the other end of the connecting part is fixedly connected with the cervical vertebra part;
or one end of the connecting part is fixedly connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part;
or one end of the connecting part is rotatably connected with the skull part, and the other end of the connecting part is rotatably connected with the cervical vertebra part.
2. The occipital posterior composite joint fixation system of claim 1, wherein: one end of the connecting component is in spherical hinge connection with the skull component, and the other end of the connecting component is fixedly connected with the cervical vertebra component;
or one end of the connecting part is fixedly connected with the skull part, and the other end of the connecting part is in spherical hinge connection with the cervical vertebra part;
or one end of the connecting part is connected with the skull part in a spherical hinge mode, and the other end of the connecting part is connected with the cervical vertebra part in a spherical hinge mode.
3. The occipital posterior composite joint fixation system of claim 2, wherein: the connecting part comprises a connecting rod, a ball body and a hollow cylinder, the bottom of the skull part is provided with a groove matched with the ball body, the ball body is arranged in the groove, one end of the connecting rod is connected with the ball body so that the connecting rod, the ball body and the groove form a ball hinge structure, the other end of the connecting rod is inserted into the cylinder and connected with the bottom surface of the cylinder, and the bottom of the cylinder is fixedly connected with the cervical vertebra part;
or the connecting part comprises a connecting rod, a sphere and a cylinder with a hollow upper part and a solid lower part, the middle part of the cylinder is provided with a groove matched with the sphere, one end of the connecting rod is connected to the bottom of the skull part through a screw, the other end of the connecting rod is inserted into the cylinder and connected with the sphere arranged in the groove, the connecting rod, the sphere and the groove form a spherical hinge structure, and the bottom of the cylinder is fixedly connected with the cervical vertebra part;
or, the connecting part comprises a connecting rod, a first sphere, a second sphere and a cylinder with a hollow upper part and a solid lower part, the middle of the cylinder is provided with a second groove matched with the second sphere, the bottom of the skull part is provided with a first groove matched with the first sphere, the first sphere is arranged in the first groove, one end of the connecting rod is connected with the first sphere so that the connecting rod, the first sphere and the first groove form a spherical hinge structure, the other end of the connecting rod is inserted into the cylinder and connected with the second sphere arranged in the second groove, the connecting rod, the second sphere and the second groove form a spherical hinge structure, and the bottom of the cylinder is fixedly connected with the cervical vertebra part.
4. The occipital posterior composite joint fixation system of any of claims 1-3, wherein: the adjustable limiting component is further included, and the deviation degree in the relative vertical state can be limited by adjusting the height of the limiting component.
5. The occipital posterior composite joint fixation system of claim 4, wherein: the limiting assembly comprises a threaded sleeve, the threaded sleeve is sleeved outside the column body or the threaded sleeve is sleeved in the column body and extends into the column body, and the threaded sleeve is in threaded connection with the column body.
6. The occipital posterior composite joint fixation system of claim 5, wherein: the inner wall of the threaded sleeve is provided with internal threads, the outer surface of the cylinder is provided with an external thread section matched with the internal threads, and a gap is reserved between the top of the external thread section and the top of the cylinder;
or the outer surface of the threaded sleeve is provided with an external thread, the inner wall of the column body is provided with an internal thread section matched with the external thread, and a gap is reserved between the top of the internal thread section and the top of the column body.
7. The occipital posterior composite joint fixation system of claim 5, wherein: the bottom surface of the threaded sleeve is provided with an annular groove, one end of the spring is inserted into the annular groove and can slide along the annular groove, and the other end of the spring is fixedly connected to the column body.
8. The occipital posterior composite joint fixation system of claim 7, wherein: a small ball capable of sliding along the annular groove is arranged in the annular groove, and one end of the spring is connected with the annular groove through the small ball.
9. The occipital posterior composite articular fixation system of any one of claims 5-8 wherein: the electromagnetic field is used for driving the threaded sleeve to spirally ascend or spirally descend along the height direction of the column body.
10. The occipital posterior composite joint fixation system of claim 9, wherein: the adjusting part comprises an electromagnet block, the electromagnet block is a structure formed by four different magnetic pole magnet blocks in a crossed mode, the threaded sleeve is also a structure formed by four different magnetic pole magnet blocks in a crossed mode, and the threaded sleeve rises spirally or descends spirally along the height direction of the cylinder under the driving of the electromagnet block.
11. The occipital posterior composite articular fixation system of any one of claims 1-10 wherein: the skull bone connecting component is characterized by further comprising a soft attachment mantle, and a layer of soft attachment mantle wraps the outer side between the bottom of the skull bone component and the bottom of the connecting component.
12. The occipital posterior composite joint fixation system of claim 3, wherein: the ball bearing is arranged between the ball body and the groove.
13. The occipital posterior composite articulating system of any of claims 1-3, 5-8 or 10, wherein: the cervical vertebra subassembly includes two barred bodies, first pressure sensor and the first wireless transmission module that the interval set up, and two barred bodies are used for being connected with the pedicle of vertebral arch respectively, has laid three first pressure sensor along barred body length direction interval on the every barred body, and first pressure sensor all connects first wireless transmission module.
14. The occipital posterior composite articulating system of claims 1-3, 5-8 or 10, wherein: the skull component also comprises a bone plate, two second pressure sensors and a second wireless transmission module, wherein the middle part of the bone plate is provided with four second pressure sensors, the number of the second pressure sensors is two respectively from top to bottom, the two second pressure sensors at the top are arranged at intervals along the horizontal direction, and the two second pressure sensors at the bottom are arranged at intervals along the horizontal direction;
three third pressure sensors are arranged on the connecting rod at intervals along the length direction of the connecting rod, and the second pressure sensor and the third pressure sensors are connected with the second wireless transmission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047712.3A CN114343810A (en) | 2022-01-17 | 2022-01-17 | Intelligent fixing system for occipital cervical posterior composite joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210047712.3A CN114343810A (en) | 2022-01-17 | 2022-01-17 | Intelligent fixing system for occipital cervical posterior composite joint |
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| CN114343810A true CN114343810A (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210047712.3A Pending CN114343810A (en) | 2022-01-17 | 2022-01-17 | Intelligent fixing system for occipital cervical posterior composite joint |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07313539A (en) * | 1994-05-27 | 1995-12-05 | Toru Arimura | Cervical vertebrae installing tool |
| US20110190824A1 (en) * | 2010-01-26 | 2011-08-04 | Gephart Matthew P | Occipital Plate for Spinal Fusion |
| CN108750693A (en) * | 2018-08-13 | 2018-11-06 | 浙江环龙机器有限公司 | One kind moving up and down device |
| CN208426198U (en) * | 2017-08-03 | 2019-01-25 | 中国人民解放军第二军医大学第二附属医院 | Pedicle screw is placed in dynamic monitoring system |
| CN109464181A (en) * | 2018-12-20 | 2019-03-15 | 天衍医疗器材有限公司 | Rest the head on the fixed device of neck |
-
2022
- 2022-01-17 CN CN202210047712.3A patent/CN114343810A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07313539A (en) * | 1994-05-27 | 1995-12-05 | Toru Arimura | Cervical vertebrae installing tool |
| US20110190824A1 (en) * | 2010-01-26 | 2011-08-04 | Gephart Matthew P | Occipital Plate for Spinal Fusion |
| CN208426198U (en) * | 2017-08-03 | 2019-01-25 | 中国人民解放军第二军医大学第二附属医院 | Pedicle screw is placed in dynamic monitoring system |
| CN108750693A (en) * | 2018-08-13 | 2018-11-06 | 浙江环龙机器有限公司 | One kind moving up and down device |
| CN109464181A (en) * | 2018-12-20 | 2019-03-15 | 天衍医疗器材有限公司 | Rest the head on the fixed device of neck |
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