CN112155704B - Universal centrum repositor used in orthopedic spine operation - Google Patents
Universal centrum repositor used in orthopedic spine operation Download PDFInfo
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- CN112155704B CN112155704B CN202011169594.0A CN202011169594A CN112155704B CN 112155704 B CN112155704 B CN 112155704B CN 202011169594 A CN202011169594 A CN 202011169594A CN 112155704 B CN112155704 B CN 112155704B
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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
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
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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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- A61B2017/00526—Methods of manufacturing
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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
- A61B2017/564—Methods for bone or joint treatment
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Abstract
The invention relates to the technical field of vertebral body reduction structures, in particular to a vertebral body universal restorer used in orthopedic spinal surgeries, which comprises a plurality of positioning and locking mechanisms arranged at intervals along the length direction of a spinal column, wherein each positioning and locking mechanism comprises two locking components which are respectively and symmetrically arranged about the central line of the spinal column, the two locking components are fixedly arranged on the lumbar back transverse process of the corresponding vertebral body, two fixing rods are respectively arranged on two sides of the spinal column, and the two fixing rods are used for realizing orthopedic reduction and limiting of two sides of a deformed spinal column. The invention realizes the limit fixation of the deformed spine of the human body by adopting a lumbar posterior fixation mode, and can effectively ensure the correction and the restoration of the spine of the patient; can set for spacing fine setting interval according to current patient's the deformation condition when carrying out the operation installation, also can be simultaneously according to the fixed stick of different size models of patient's the different selection of condition to can realize the fastening location and rotatory spacing to different fixed sticks.
Description
Technical Field
The invention relates to the technical field of vertebral body reduction structures, in particular to a vertebral body universal restorer used in orthopedic spine surgery.
Background
The adult spine is formed by 26 vertebrae connected by ligaments, joints and intervertebral discs. The upper end of the spine supports the skull, the lower hip bone, the middle rib and the back wall of the thorax, the abdominal cavity and the pelvic cavity. The spine has functions of supporting the trunk, protecting the internal organs, protecting the spinal cord, and performing exercise. A longitudinal spinal canal is formed in the spine from top to bottom, a spinal cord is arranged in the spinal canal, the spinal cord is a support of a body and is positioned in the center of the back, the upper end of the spinal canal is connected with a skull, and the lower end of the spinal canal reaches the tip of a coccyx.
The spine has flexible motion functions in addition to support and protection functions. Although the range of motion between two adjacent vertebrae is small, the motion between most vertebrae is summed up to allow for a larger range of motion, including flexion, lateral flexion, rotation, and rotation. The degrees of motion of the various segments of the spine are different, which are related to the thickness of the intervertebral disc, the orientation of the intervertebral joints, and other constraints.
Pathological changes in the spine are mostly caused by spinal deformities including lateral curvature, kyphosis, and spondylolisthesis. Different treatments are required for different spinal deformities. Generally, when the deformity of the spine exceeds 50 degrees and the disease course is long, the operation should be performed as early as possible so as to avoid seriously affecting the cardiopulmonary function.
At present, the mode of internal fixation of the spine is frequently adopted in spinal surgeries, the fixation of the spine is generally realized by adopting a lumbar anterior fixation mode, but the mode of operation fixation hardly achieves a better fixation effect when the operation fixation is carried out on patients with multi-position spinal deformity, and the whole spinal postoperative rehabilitation is poor.
Therefore, the invention designs the multi-vertebral-body universal restorer specially used in the orthopedic spine surgery to solve the problems in the prior art.
Disclosure of Invention
In order to solve one of the technical problems, the invention adopts the technical scheme that: the utility model provides a universal restorer of centrum that uses among orthopedic spine surgery, includes that a plurality of follows the location locking mechanism that backbone length direction interval set up, location locking mechanism includes two locking components that respectively set up about backbone central line symmetry, each locking component all adopts multiaxis to move the structure, two equal fixed mounting of locking component is on the waist back transverse process of the centrum that corresponds, installs a fixed stick respectively in the both sides of backbone, two fixed stick is used for realizing the orthopedic restoration and spacing to deformation backbone both sides, each fixed stick respectively top-down passes in proper order each locking component that is located same side and realizes fixing, prevent changeing spacing through each locking component, each fixed stick adopts the low tangent orbit structure to realize orthopedic, restoration and spacing to deformation backbone.
The low-shear track structure specifically refers to the structural design requirements and the installation requirements of the fixing rods, the fixing rods are designed to be arc-shaped, the centers of the fixing rods are protruded downwards, and gaps are formed between the fixing rods and vertebral bodies of the spine.
The low-cut track structure can effectively reduce the interference to soft tissues after the fixing rod is installed and fixed, and can effectively play a role in limiting and fixing, thereby ensuring the effective orthopedic restoration of the whole deformed spine.
Preferably, the locking assembly comprises a horizontal U-shaped positioning clamping plate which is arranged at the outer side of the vertebral body and clamped at the upper side and the lower side of the transverse process of the corresponding vertebral body through a U-shaped cavity of the U-shaped positioning clamping plate, the upper part of the U-shaped positioning clamping plate is provided with a locking long nail which is obliquely arranged downwards, the inner end of the locking long nail is inserted and fixed in the transverse process of the corresponding vertebral body, a locking short nail which is vertically arranged is arranged at the bottom of the U-shaped positioning clamping plate, the inner end of the locking short nail is inserted and fixed in the transverse process of the corresponding vertebral body, a universal fine-tuning component is fixedly arranged at the top of the U-shaped positioning clamping plate and used for realizing the locking and limiting of the fixing rod at the corresponding position, the universal fine-tuning component can adjust the transverse offset of the fixed rod, and two ends of the fixed rod movably penetrate through the universal fine-tuning component.
The adjustable lateral offset can better accommodate the condition of spinal offset orthopedic spacing of different individual patients.
Preferably, the universal fine-tuning part comprises a short column fixed on the top of the U-shaped positioning clamping plate in an integrally formed manner, a segment body is formed on the top of the short column, a universal joint seat is clamped on the outer side wall of the top of the segment body in a matched manner, the universal joint seat is clamped on the outer surface of the segment body in a movably matched manner through a spherical groove arranged at the bottom of the universal joint seat, an inner threaded pipe with an internal thread is integrally formed on the top of the universal joint seat, a horizontally arranged U-shaped locking part is arranged on one side of the inner threaded pipe, coaxially arranged through holes are respectively arranged on an upper horizontal plate and a lower horizontal plate of the U-shaped locking part, the U-shaped locking part is movably sleeved on the outer side wall of the inner threaded pipe at a corresponding position through two through holes respectively, and the bottom of the U-shaped locking part is abutted against the top of the universal joint seat, the fixing rod is fixedly inserted into a U-shaped limiting cavity of the U-shaped locking piece, and a locking bolt is screwed in a threaded cavity of the internal threaded pipe; the universal joint seat and the internal thread pipe form a universal fine adjustment main part and are machined and formed by the same blank.
Preferably, the internal thread pipe orientation be provided with a displacement through-hole on the lateral wall of U type die cavity one side of U type retaining member displacement through-hole slidable mounting has one to tightly the stopper, the vertical section of supporting tightly the stopper is right trapezoid shape, support tightly the outer terminal surface of stopper be used for with correspond position department the lateral wall of fixed stick offsets tightly, the lateral wall of the inner screw rod of locking bolt with the inclined plane of supporting tightly the inner of stopper offsets tightly, the lateral wall of fixed stick with the inside wall in the spacing chamber of U type retaining member cooperatees.
Preferably, a compensation shaft sleeve is sleeved on the outer side wall of the internal threaded pipe on the upper portion of the U-shaped locking piece, and the top end face of the compensation shaft sleeve abuts against the bottom of the end of the locking bolt.
Preferably, the end face of the fixing rod is circular, and the section of the fixing rod in the U-shaped limiting cavity of the U-shaped locking member is in a spherical segment shape and faces the side wall on one side of the outer end face of the abutting limiting block, and the side wall is of a plane structure.
Preferably, a fine adjustment anti-drop limiting part is installed on the spherical groove.
Preferably, the fine adjustment anti-disengaging limiting part comprises two locking through holes which are respectively arranged on the side walls of the universal joint seat on the left side and the right side of the spherical groove and run through the universal joint seat, a communicating arc-shaped groove is respectively arranged on the side wall of the universal joint seat corresponding to the two end parts of each locking through hole, an arc-shaped limiting groove which is concentrically arranged with the communicating arc-shaped groove is arranged on the short column below the two communicating arc-shaped grooves on the same side and the U-shaped positioning clamping plate, a rigid connecting strip is respectively penetrated in each arc-shaped limiting groove, and the two ends of each rigid connecting strip are movably penetrated into the communicating arc-shaped grooves at the corresponding positions and are locked through threaded locking parts at the locking through holes at the corresponding positions.
A method for installing a vertebral body universal restorer used in an orthopedic spinal surgery comprises the following steps:
s1: respectively clamping the U-shaped positioning clamping plates on the locking assemblies on transverse processes of the vertebral bodies at corresponding positions, and then performing point positioning to mark drilling point positions;
s2: drilling transversely according to the drilling point positions to form locking screw holes;
s3: installing each locking assembly, and screwing each locking short nail and each locking short nail into the corresponding locking screw hole to realize the fixation of the whole locking assembly;
s4: the locking bolts on the locking assemblies are adjusted to adjust the corresponding abutting limiting blocks to move inwards so that the size of the corresponding U-shaped limiting cavity can be freely inserted by a fixing rod:
s5: mounting fixing rods, enabling the corresponding fixing rods to sequentially penetrate through the U-shaped limiting cavities of the locking assemblies from bottom to top, adjusting the fixing rotation to enable the fixing rods to be in a low-cut track structure state after the fixing rods are inserted, and enabling the central protruding sections of the fixing rods to be located at the lowest positions close to the back;
s6: screwing locking bolts on the two locking assemblies positioned at the two ends of the fixing rod to realize locking, wherein the locking degree is determined according to the spinal condition of a patient, and the locking degree is further used for realizing the transverse displacement degree of the fixing rod;
s7: and locking each locking bolt on the rest locking assembly, wherein the locking degree of each locking bolt is determined according to the spinal deformation condition of the patient.
The installation method of the vertebral universal reductor used in the orthopedic spinal surgery, the processing and manufacturing method of the universal fine adjustment main component on the locking component comprises the following steps:
1.1, preparing a blank with a cuboid structure;
1.2, getting on a lathe, and clamping a blank piece;
1.3, turning the profile of the universal fine-tuning main part;
1.4, boring a spherical groove:
clamping the blank piece of the profile of the universal fine-tuning main part on a boring mill through a clamping tool, and then machining a spherical groove;
1.5, boring an inner cavity blind hole of the inner solenoid;
1.6, drilling two locking through holes by a drilling machine;
1.7, connecting arc-shaped grooves at two end parts of each locking through hole at the milling position;
1.8, turning internal threads of an internal screw tube;
1.9, drilling a displacement through hole;
and 1.10, obtaining the universal fine adjustment main part.
The invention has the beneficial effects that:
1. the invention realizes the limit fixation of the deformed spine of the human body by adopting a lumbar posterior fixation mode, and can effectively ensure the correction and the restoration of the spine of the patient;
2. when the surgical installation is carried out, the limit fine adjustment distance can be set according to the deformation condition of the current patient, meanwhile, fixing rods with different sizes and models can be selected according to the condition of the patient, and the fastening, the positioning and the rotation limit of different fixing rods can be realized;
3. the fixed rod adopts the arc structural design and adopts the protruding undercut orbit structure downwards in center bottom, can reduce the interference to peripheral soft tissue effectively, excellent in use effect.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.
Fig. 1 is a structural diagram illustrating an overall installation state of the present invention.
Fig. 2 is a side view of the fixing rod of the present invention.
Fig. 3 is a schematic top view of the locking assembly of the present invention.
Fig. 4 is a partial sectional structural schematic view of the locking assembly of the present invention.
FIG. 5 is a schematic cross-sectional view of the fine tuning gimbal assembly of the present invention.
In the figure, 1, the spine; 101. a vertebral body; 102. transverse process; 2. a positioning locking mechanism; 3. a locking assembly; 301. a U-shaped positioning clamping plate; 302. a U-shaped cavity; 303. locking the long nail; 304. locking the short nail; 4. a fixing rod; 5. a universal fine adjustment component; 501. a short column; 502. a segment body; 503. a universal joint base; 504. a spherical groove; 505. an internally threaded tube; 506. a U-shaped locking member; 507. a U-shaped limiting cavity; 508. locking the bolt; 509. a displacement through hole; 510. tightly abutting against a limiting block; 511. a compensation shaft sleeve; 512. locking the through hole; 513. the arc-shaped grooves are communicated; 514. an arc-shaped limiting groove; 515. a rigid connecting strip; 516. and (4) a threaded locking piece.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-5, a vertebral universal repositor used in orthopedic spinal surgery comprises a plurality of positioning locking mechanisms 2 arranged at intervals along the length direction of a vertebral column 1, wherein each positioning locking mechanism 2 comprises two locking components 3 symmetrically arranged about the central line of the vertebral column 1, each locking component 3 adopts a multi-axial displacement structure, each locking component 3 is fixedly arranged on a transverse protrusion 102 behind the waist of a corresponding vertebral body 101, two fixing rods 4 are respectively arranged on two sides of the vertebral column 1, the two fixing rods 4 are used for realizing orthopedic reposition and limit on two sides of the deformed vertebral column 1, each fixing rod 4 sequentially penetrates through each locking component 3 on the same side from top to bottom and realizes fixation, anti-rotation and limit on the locking component 3, and each fixing rod 4 adopts a low-tangential track structure to realize orthopedic, anti-rotation and limit on the deformed vertebral column 1, Resetting and limiting.
The invention realizes the limit fixation of the deformed spine 1 of the human body by adopting a way of fixing the back of the waist, and can effectively ensure the correction and the restoration of the spine 1 of the patient.
The low-tangent track structure specifically refers to the structural design requirements and the installation requirements of each fixing rod 4, each fixing rod 4 adopts an arc-shaped structural design, the center of the whole fixing rod 4 protrudes downwards, and a gap is formed between the center of the whole fixing rod 4 and the vertebral body 101 of the vertebral column 1.
The low-cut track structure can ensure that the interference to soft tissues can be effectively reduced after the fixing rod 4 is installed and fixed, and can effectively play a role in limiting and fixing, thereby ensuring the effective orthopedic reduction of the whole deformed spine 1.
Can set for spacing fine setting interval according to current patient's deformation condition when carrying out the operation installation, also can select the fixed rod 4 of different size models simultaneously according to patient's the condition is different to can realize the tight fixed position and the rotation spacing to different fixed rods 4.
Preferably, the locking assembly 3 includes a horizontal U-shaped positioning clamping plate 301, the U-shaped positioning clamping plate 301 is disposed outside the vertebral body 101 and clamped to the upper and lower sides of the transverse protrusion 102 of the corresponding vertebral body 101 through its own U-shaped cavity 302, a locking long nail 303 disposed obliquely downward is installed on the upper portion of the U-shaped positioning clamping plate 301, the inner end of the locking long nail 303 is inserted and fixed in the transverse protrusion 102 of the corresponding vertebral body 101, a vertically disposed locking short nail 304 is installed at the bottom of the U-shaped positioning clamping plate 301, the inner end of the locking short nail 304 is inserted and fixed in the transverse protrusion 102 of the corresponding vertebral body 101, a universal fine-tuning component 5 is fixedly installed at the top of the U-shaped positioning clamping plate 301, the universal fine-tuning component 5 is used for realizing locking and limiting of the fixing rod 4 at the corresponding position, and the universal fine-tuning component 5 can adjust the transverse offset of the fixing rod 4, and two ends of the fixed rod 4 movably penetrate through the universal fine adjustment part 5.
The locking subassembly 3 can be fixed through the fixed of locking long nail 303, locking short nail 304 realization double-point position after the installation to guarantee that whole locking subassembly 3's fixed firm is fixed.
Can realize locking the position fixedly to fixed rod 4 through universal fine tuning part 5 after the installation of locking subassembly 3 is accomplished, finally each universal fine tuning part 5 mutually supports the fixed locking that realizes whole root fixed rod 4, can realize controlling the locking degree of fixed rod 4 and the control of the horizontal micro displacement of fixed rod 4 according to the operation demand simultaneously.
The adjustable lateral offset can better accommodate situations where the spine 1 of different individual patients deviates from the orthopedic spacing.
Preferably, the universal fine-adjustment component 5 comprises a short column 501 fixed on the top of the U-shaped positioning clamping plate 301 in an integrally formed manner, a segment body 502 is formed on the top of the short column 501, a universal joint seat 503 is clamped on the outer side wall of the top of the segment body 502 in a matching manner, the universal joint seat 503 is clamped on the outer surface of the segment body 502 in a movably matching manner through a spherical groove 504 arranged at the bottom of the universal joint seat, an internal threaded pipe 505 with an internal thread arranged in an inner cavity is integrally formed on the top of the universal joint seat 503, a horizontally arranged U-shaped locking member 506 is arranged on one side of the internal threaded pipe 505, coaxially arranged through holes are arranged on the upper and lower horizontal plates of the U-shaped locking member 506, the U-shaped locking member 506 is movably sleeved on the outer side wall of the internal threaded pipe 505 at the corresponding position through the two through holes, and the bottom of the U-shaped locking member 506 is abutted against the top of the universal joint seat 503, the fixing rod 4 is fixedly inserted into the U-shaped limiting cavity 507 of the U-shaped locking member 506, and a locking bolt 508 is screwed in the threaded cavity of the internal threaded pipe 505; the universal joint seat 503 and the internal threaded pipe 505 form a universal fine adjustment main part and are machined and formed by the same blank.
The universal joint seat 503 can be connected to the segment body 502 to realize the micro-inclined displacement in each direction, and the U-shaped locking member 506 provided at the same time can drive the abutting limiting block 510 in the displacement through hole 509 to realize the abutting degree to the fixed rod 4 by matching the movement of the locking bolt 508, and the inner end surface of the abutting limiting block 510 is an inclined surface, so that the outer end of the abutting limiting block 510 can be driven to be close to the corresponding position of the fixed rod 4 only by screwing the locking bolt 508 to the downward abutting degree during adjustment.
Preferably, the internal thread pipe 505 is faced be provided with a displacement through-hole 509 on the lateral wall of U type die cavity 302 one side of U type retaining member 506 displacement through-hole 509 slidable mounting has one to support tight stopper 510, the vertical section of supporting tight stopper 510 is right trapezoid shape, support tight stopper 510 outer terminal surface be used for with corresponding position department the lateral wall of fixed stick 4 supports tightly, the lateral wall of the inner screw rod of locking bolt 508 with the inclined plane of supporting tight stopper 510 inner supports tightly, the lateral wall of fixed stick 4 with the inside wall of the U type spacing chamber 507 of U type retaining member 506 cooperatees.
The height of the installed compensation bushing 511 can be selected according to the need during adjustment, and is specifically installed according to the need.
Preferably, a compensation shaft sleeve 511 is sleeved on the outer side wall of the internal threaded pipe 505 at the upper part of the U-shaped locking member 506, and the top end surface of the compensation shaft sleeve 511 abuts against the bottom of the end head of the locking bolt 508.
Preferably, the end surface of the fixing rod 4 is circular, and the section of the fixing rod 4 located in the U-shaped limiting cavity 507 of the U-shaped locking member 506 is in a segment shape and has a planar structure facing the side wall of the outer end surface of the abutting limiting block 510.
The main function of the plane structure is to realize abutting against the limit block 510 and abutting against the fixed rod 4, so as to play a role in limiting the rotation of the fixed rod 4, and the tight limit block 510 can be driven to move by controlling the screwing degree of the locking bolt 508, so that the abutting against the limit block 510 and the spacing distance of the fixed rod 4 are realized, and the angle range of the fixed rod 4 which can be screwed is controlled.
Preferably, a fine adjustment anti-disengagement limiting part is installed on the spherical groove 504, and is mainly used for protecting the universal joint seat 503 from being dislocated, so as to ensure the stability when the universal joint seat 503 drives the components thereon to be displaced.
Preferably, the fine adjustment anti-drop limiting part includes two locking through holes 512 respectively disposed on the side walls of the universal joint seat 503 on the left and right sides of the spherical groove 504 and penetrating through the universal joint seat 503, a communicating arc-shaped groove 513 is respectively disposed on the side wall of the universal joint seat 503 corresponding to the two end portions of each locking through hole 512, an arc-shaped limiting groove 514 concentrically disposed with the communicating arc-shaped groove 513 is disposed on the short column 501 and the U-shaped positioning clamping plate 301 below the two communicating arc-shaped grooves 513 on the same side, a rigid connecting bar 515 is respectively passed through each of the arc-shaped limiting grooves 514, and the two ends of each rigid connecting bar 515 are movably passed through the communicating arc-shaped groove 513 at the corresponding position and are locked by the threaded locking pieces 516 at the locking through holes 512 at the corresponding position.
Through fine setting anticreep locating part can effectual realization can play spacing drawknot's effect through rigid connection strip 515 when universal joint seat 503 carries out the rotation of inclining, play the reinforced effect of protection effectively.
A method for installing a vertebral body 101 universal restorer used in an orthopedic spine 1 operation is disclosed, wherein the vertebral body 101 universal restorer used in the orthopedic spine 1 operation is the vertebral body 101 universal restorer used in the orthopedic spine 1 operation, and the method comprises the following steps:
s1: respectively clamping the U-shaped positioning clamping plates 301 on the locking assemblies 3 on transverse processes 102 of the vertebral bodies 101 at corresponding positions, and then performing positioning to mark drilling point positions;
s2: drilling a transverse process 102 according to the drilling point position to form a locking screw hole;
s3: installing each locking component 3, and screwing each locking short nail 304 and each locking short nail 304 into the corresponding locking screw hole to realize the fixation of the whole locking component 3;
s4: the locking bolts 508 on the locking assemblies 3 are adjusted to adjust the corresponding tightening limiting blocks 510 to displace inwards, so that the size of the corresponding U-shaped limiting cavity 507 can be freely inserted by the fixing rod 4:
s5: installing fixing rods 4, enabling the corresponding fixing rods 4 to sequentially penetrate through the U-shaped limiting cavities 507 of the locking assemblies 3 from the bottom upwards, adjusting the fixed rotation to enable the fixing rods to be in a low-cut track structure state after the insertion is finished, and enabling the central convex section of each fixing rod 4 to be located at the lowest position close to the back;
the fixing rod 4 adopts a mode of fixing the two ends firstly and then fixing the middle part, so that the whole fixing position can be effectively controlled, and micro adjustment is realized through middle part positioning, thereby realizing accurate fixing control on the position of the fixing rod 4 more effectively and ensuring the orthopedic fixing effect.
S6: screwing locking bolts 508 on the two locking assemblies 3 positioned at the two ends of the fixing rod 4 to realize locking, wherein the locking degree is determined according to the condition of the spine 1 of the patient, and then the transverse displacement degree of the fixing rod 4 is realized;
in addition, the fixing rods 4 with different cross-sectional shapes can be replaced according to requirements, so that the orthopedic reduction of the vertebral body 101 under different patient conditions can be realized;
s7: and locking each locking bolt 508 on the rest locking assemblies 3, wherein the locking degree of each locking bolt 508 is determined according to the deformation condition of the spine 1 of the patient.
A method for installing a universal reductor of a vertebral body 101 used in an orthopedic spine 1 operation, wherein the method for processing and manufacturing the universal fine adjustment main part on the locking component 3 comprises the following steps:
1.1, preparing a blank with a cuboid structure;
1.2, getting on a lathe, and clamping a blank piece;
1.3, turning the profile of the universal fine-tuning main part;
1.4, boring a spherical groove 504:
clamping the blank piece of the profile of the universal fine-tuning main part on a boring mill through a clamping tool, and then processing a spherical groove 504;
1.5, boring an inner cavity blind hole of the inner solenoid;
1.6, drilling two locking through holes 512 by a drilling machine;
1.7, connecting arc-shaped grooves 513 at two end parts of each locking through hole 512 at the milling position;
1.8, turning internal threads of an internal screw tube;
1.9, drilling a displacement through hole 509;
and 1.10, obtaining the universal fine adjustment main part.
The universal fine adjustment main part is formed by machining a blank, so that the service life of the whole part in use can be effectively ensured, and the structural strength of the part is ensured; meanwhile, an innovative processing technology is adopted during the design of the processing steps, so that the purposes of improving the processing efficiency and the processing quality are effectively achieved.
The invention realizes the limit fixation of the deformed spine 1 of the human body by adopting a way of fixing the back of the waist, and can effectively ensure the correction and the restoration of the spine 1 of the patient; when in surgical installation, the limit fine adjustment distance can be set according to the deformation condition of the current patient, meanwhile, fixing rods 4 with different sizes and models can be selected according to different conditions of the patient, and the fastening position and the rotation limit of different fixing rods 4 can be realized; the fixed rod 4 adopts an arc structural design and adopts a low-cut track structure with the center bottom protruding downwards, so that the interference to peripheral soft tissues can be effectively reduced, and the using effect is good.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and the technical solutions are all covered in the scope of the claims and the specification of the present invention; it will be apparent to those skilled in the art that any alternative modifications or variations to the embodiments of the present invention may be made within the scope of the present invention.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (4)
1. The utility model provides a universal restorer of centrum that uses in orthopedics backbone operation which characterized in that: the positioning and locking mechanism comprises two locking components which are symmetrically arranged relative to the central line of the spine, the two locking components are fixedly arranged on the lumbar back transverse process of the corresponding vertebral body, two fixing rods are respectively arranged on two sides of the spine and used for realizing orthopedic restoration and limiting of two sides of the deformed spine, and each fixing rod sequentially penetrates through the locking components on the same side from top to bottom and realizes fixing, rotation prevention and limiting of the locking components;
the locking component comprises a horizontal U-shaped positioning clamping plate which is arranged at the outer side of the vertebral body and is clamped at the upper side and the lower side of the transverse process of the corresponding vertebral body through a U-shaped cavity of the U-shaped positioning clamping plate, the upper part of the U-shaped positioning clamping plate is provided with a locking long nail which is obliquely arranged downwards, the inner end of the locking long nail is inserted and fixed in the transverse process of the corresponding vertebral body, a locking short nail which is vertically arranged is arranged at the bottom of the U-shaped positioning clamping plate, the inner end of the locking short nail is inserted and fixed in the transverse process of the corresponding vertebral body, a universal fine-tuning component is fixedly arranged at the top of the U-shaped positioning clamping plate and used for realizing the locking and limiting of the fixing rod at the corresponding position, the universal fine-tuning component can adjust the transverse offset of the fixed rod, and both ends of the fixed rod movably penetrate through the universal fine-tuning component;
the universal fine adjustment part comprises a short column which is integrally fixed at the top of the U-shaped positioning clamping plate, a segment body is formed at the top of the short column, a universal joint seat is clamped on the outer side wall of the top of the segment body in a matched manner, the universal joint seat is clamped on the outer surface of the segment body in a movably matched manner through a spherical groove arranged at the bottom of the universal joint seat, an inner cavity is integrally formed at the top of the universal joint seat and is provided with an internal threaded pipe with internal threads, a horizontally arranged U-shaped locking part is arranged at one side of the internal threaded pipe, coaxially arranged through holes are respectively arranged on an upper horizontal plate and a lower horizontal plate of the U-shaped locking part, the U-shaped locking part is movably sleeved on the outer side wall of the internal threaded pipe at a corresponding position through two through holes respectively, and the bottom of the U-shaped locking part is abutted against the top of the universal joint seat, the fixing rod is fixedly inserted into a U-shaped limiting cavity of the U-shaped locking piece, and a locking bolt is screwed in a threaded cavity of the internal threaded pipe; the universal joint seat and the internal threaded pipe form a universal fine adjustment main part and are machined and formed by the same blank;
a displacement through hole is formed in the outer side wall of the inner threaded pipe, which faces one side of a U-shaped cavity of the U-shaped locking member, a tightening limiting block is slidably mounted in the displacement through hole, the vertical section of the tightening limiting block is in a right-angled trapezoid shape, the outer end face of the tightening limiting block is used for tightly abutting against the outer side wall of the fixing rod at a corresponding position, the outer side wall of a screw rod at the inner end of the locking bolt tightly abuts against the inclined surface at the inner end of the tightening limiting block, and the outer side wall of the fixing rod is matched with the inner side wall of a U-shaped limiting cavity of the U-shaped locking member;
the end face of the fixing rod is circular, the section of the fixing rod positioned in the U-shaped limiting cavity of the U-shaped locking part is in a spherical segment shape, and the side wall facing one side of the outer end face of the abutting limiting block is of a planar structure;
and a fine-adjustment anti-falling limiting part is arranged on the spherical groove.
2. A universal vertebral body repositor for use in orthopedic spinal surgery, according to claim 1, wherein: the outer side wall of the internal thread pipe on the upper portion of the U-shaped locking piece is sleeved with a compensation shaft sleeve, and the top end face of the compensation shaft sleeve is abutted to the bottom of the end of the locking bolt.
3. A universal vertebral body repositor for use in orthopedic spinal surgery, according to claim 2, wherein: the fine adjustment anti-falling limiting part comprises two locking through holes which are respectively arranged on the left side and the right side of the spherical groove and run through the universal joint seat, a communicating arc-shaped groove is respectively arranged on the side wall of the universal joint seat corresponding to the two end parts of each locking through hole, an arc-shaped limiting groove which is concentric with the communicating arc-shaped groove is arranged on the short column below the communicating arc-shaped groove and the U-shaped positioning clamping plate from two sides which are positioned on the same side, a rigid connecting strip is respectively penetrated in each arc-shaped limiting groove, and the two ends of each rigid connecting strip are movably penetrated to the corresponding positions in the communicating arc-shaped groove and are locked through the threaded locking parts at the corresponding positions in the locking through holes.
4. A universal vertebral body repositor for use in orthopedic spinal surgery according to claim 3, wherein: the processing and manufacturing method of the universal fine adjustment main part on the locking assembly comprises the following steps:
1.1, preparing a blank with a cuboid structure;
1.2, getting on a lathe, and clamping a blank piece;
1.3, turning the profile of the universal fine-tuning main part;
1.4, boring a spherical groove:
clamping the blank piece of the profile of the universal fine-tuning main part on a boring mill through a clamping tool, and then machining a spherical groove;
1.5, boring an inner cavity blind hole of the inner solenoid;
1.6, drilling two locking through holes by a drilling machine;
1.7, connecting arc-shaped grooves at two end parts of each locking through hole at the milling position;
1.8, turning internal threads of an internal screw tube;
1.9, drilling a displacement through hole;
and 1.10, obtaining the universal fine adjustment main part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011169594.0A CN112155704B (en) | 2020-10-28 | 2020-10-28 | Universal centrum repositor used in orthopedic spine operation |
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| CN202011169594.0A CN112155704B (en) | 2020-10-28 | 2020-10-28 | Universal centrum repositor used in orthopedic spine operation |
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| CN112155704B true CN112155704B (en) | 2022-02-01 |
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