CN113520678A - Titanium mesh bone graft fixation device - Google Patents
Titanium mesh bone graft fixation device Download PDFInfo
- Publication number
- CN113520678A CN113520678A CN202110734183.XA CN202110734183A CN113520678A CN 113520678 A CN113520678 A CN 113520678A CN 202110734183 A CN202110734183 A CN 202110734183A CN 113520678 A CN113520678 A CN 113520678A
- Authority
- CN
- China
- Prior art keywords
- hole
- titanium mesh
- screw
- locking
- ball head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/446—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or elliptical cross-section substantially parallel to the axis of the spine, e.g. cylinders or frustocones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- 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, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30507—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a threaded locking member, e.g. a locking screw or a set screw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
本发明公开一种钛网植骨固定装置，其包括：钛网融合器，其设有植骨仓和位于钛网融合器外周面的连接螺孔；连接座，其设有内球头孔和连通于内球头孔的内螺纹孔；球头螺钉，其一端能与连接螺孔连接，另一端能与内球头孔适配连接；锁紧螺塞，其能与内螺纹孔连接且能与球头螺钉的另一端相抵接；固定件，其设有能与连接座连接的第一连接端和能与脊柱连接的第二连接端。本发明不仅能防止钛网融合器相对连接座发生移动，能有效避免出现术后钛网融合器发生沉陷、移位的问题，更好的促进手术的植骨融合，加快患者术后愈合恢复，而且能调整球头螺钉相对连接座的角度，实现连接座相对钛网融合器的角度可调，降低钛网植骨固定装置的安装难度。
The invention discloses a titanium mesh bone grafting fixing device, which comprises: a titanium mesh cage, which is provided with a bone grafting bin and a connecting screw hole located on the outer peripheral surface of the titanium mesh cage; a connecting seat, which is provided with an inner ball head hole and The inner threaded hole connected to the inner ball head hole; the ball head screw, one end of which can be connected with the connecting screw hole, and the other end can be connected with the inner ball head hole; the locking screw plug, which can be connected with the inner threaded hole and can Abutting with the other end of the ball head screw; the fixing piece is provided with a first connecting end which can be connected with the connecting seat and a second connecting end which can be connected with the spine. The invention can not only prevent the titanium mesh cage from moving relative to the connecting seat, but also effectively avoid the problems of subsidence and displacement of the titanium mesh cage after surgery, better promote the bone graft fusion in surgery, and accelerate the postoperative healing and recovery of patients. Moreover, the angle of the ball head screw relative to the connecting seat can be adjusted, so that the angle of the connecting seat relative to the titanium mesh cage can be adjusted, and the installation difficulty of the titanium mesh bone grafting fixation device can be reduced.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a titanium mesh bone grafting fixing device.
Background
When treating diseases related to spine explosive fracture, spine tumor, spine infection and the like, the three problems of focus removal, bone grafting fusion and spine stabilization are mainly required to be solved. Therefore, when treating such patients, the anterior approach of the titanium mesh bone grafting fixation operation is often considered. The anterior surgery is selected, the focus is convenient to remove and the decompression of anterior is carried out, the inner space of titanium net is big, is convenient for plant the bone, promotes patient's centrum and fuses, and titanium net itself has very strong supporting role moreover, can make patient's postoperative obtain stable backbone immediately and support the effect, accomplishes the fusion until patient's injured vertebra.
With the continuous development of medical technology level, the progress of surgical treatment technology and the development of related medical concepts, the clinical application of a titanium mesh fusion cage for bone grafting fusion to treat related diseases such as spinal burst fracture, spinal tumor, spinal infection and the like becomes a normal state. The traditional titanium mesh fusion cage product is generally in a hollow cylindrical shape or a hollow elliptic cylindrical shape, broken bones are filled in an internal through hole in the process of clinical operation, and then the broken bones are implanted into the injured vertebral position of a patient to complete bone implantation and promote the fusion between the vertebral bodies of the postoperative patient.
When the existing titanium mesh fusion cage product is used clinically, many postoperative complications are caused by poor fixation, which include: the titanium mesh sinks after operation, resulting in the loss of the height of the vertebral body of the patient; migration occurred after the titanium mesh surgery, resulting in fusion failure. The occurrence of the complications brings great hidden troubles to the postoperative recovery and the life quality of patients, and also seriously hinders the clinical popularization and application of the titanium mesh fusion device product.
Disclosure of Invention
The present invention is directed to a titanium mesh bone grafting fixture, which solves one or more of the problems of the prior art and provides at least one of the advantages of the present invention.
The technical scheme adopted for solving the technical problems is as follows:
the invention provides a titanium mesh bone grafting fixing device, which comprises:
the titanium mesh fusion cage is provided with a bone grafting bin and a connecting screw hole, and the connecting screw hole is formed in the outer peripheral surface of the titanium mesh fusion cage;
the connecting seat is provided with an inner ball head hole and an inner threaded hole, and the inner threaded hole is communicated with the inner ball head hole;
one end of the ball head screw can be connected with the connecting screw hole, and the other end of the ball head screw can be in adaptive connection with the inner ball head hole;
the locking screw plug can be connected with the internal thread hole, and the locking screw plug can be abutted against the other end of the ball screw;
the fixing piece is provided with a first connecting end and a second connecting end, the first connecting end can be connected with the connecting seat, and the second connecting end can be connected with a spine.
The invention has at least the following beneficial effects: the titanium mesh fusion device is provided with a bone grafting bin and a connecting screw hole, the connecting screw hole is formed in the outer peripheral surface of the titanium mesh fusion device, and broken bones are filled in the bone grafting bin, so that a bone grafting fusion operation is facilitated; and, set up connecting seat, bulb screw, locking plug screw and mounting, the one end of bulb screw can precession the connection screw of titanium net fuses the ware, makes bulb screw and titanium net fuse the ware mutually fixed, and the other end of bulb screw is established in the interior bulb hole of connecting seat, so can adjust the angle of the relative connecting seat of bulb screw to realize that the angle of the relative titanium net of connecting seat fuses the ware is adjustable, greatly reduced installs this titanium net bone grafting fixing device in the degree of difficulty of backbone. Then, use the internal thread hole of locking plug screw precession connecting seat, until the other end looks butt of locking plug screw and ball screw, make ball screw and connecting seat fixed mutually to prevent that ball screw from taking place the displacement relative to the connecting seat, thereby prevent that the relative connecting seat of titanium mesh fusion ware from taking place to remove, can effectively avoid appearing postoperative titanium mesh fusion ware and take place the problem of subsidence, aversion, the bone grafting that promotes the operation that can be better fuses for patient's postoperative healing resumes. Through the setting of mounting, realize that connecting seat and backbone are fixed mutually, guarantee that this titanium net bone grafting fixing device can stably implant patient's injured vertebra department.
As a further improvement of the above technical solution, the connecting seat includes a connecting plate, a locking seat and a nut; the connecting plate is provided with a first waist-shaped hole, the locking seat is provided with the inner ball head hole and an inner threaded hole, the locking seat is provided with a cylindrical connecting part, the outer peripheral surface of the connecting part is provided with a first external thread, and the connecting part can be inserted into the first waist-shaped hole and is connected with the nut; the inner thread hole penetrates through the end face of the connecting portion, and the inner ball head hole penetrates through the end face of the locking seat.
The locking seat is provided with a connecting part which is cylindrical, an internal thread hole penetrates through the end surface of the connecting part, an internal ball head hole penetrates through the end surface of the locking seat, one end of a ball head screw can sequentially penetrate through the internal thread hole and the internal ball head hole, then the internal thread hole is screwed by using a locking screw plug until the locking screw plug is abutted against the ball head screw, and the ball head screw is fixed with the locking seat; the connecting plate sets up first waist type hole, and the outer peripheral face of connecting portion sets up first external screw thread, and connecting portion can be connected with the nut after inserting first waist type hole, make locking seat and connecting plate fixed mutually, and the position that can realize the relative connecting plate of locking seat is adjustable in the setting in first waist type hole moreover to reduce titanium net bone grafting fixing device's the installation degree of difficulty.
As a further improvement of the technical scheme, the locking seat faces to the surface of the connecting part and protrudes to form a limiting block, and the limiting block can be clamped with the connecting plate. After connecting portion inserted the first waist type hole of connecting plate, the locking seat contacted with the connecting plate, and the locking seat set up the stopper in the department of contact with the connecting plate, and the stopper can laminate mutually with the side of connecting plate, can prevent effectively that the locking seat is relative connecting plate when connecting portion are connected with the nut rotatory to reduce the degree of difficulty that locking seat and connecting plate are firm to be connected.
As a further improvement of the technical scheme, the two limiting blocks are arranged at two ends of the locking seat and are respectively positioned at two ends of the locking seat, and the two limiting blocks can be clamped with the connecting plate. The two ends of the locking seat are respectively provided with a limiting block, when the locking seat is contacted with the connecting plate, the connecting plate can be clamped in a limiting area between the two limiting blocks, and the positioning of the locking seat before the locking seat is fixedly connected with the connecting plate is completed.
As a further improvement of the above technical solution, the diameter of the internal threaded hole is consistent with the diameter of the internal ball hole; and the other end of the ball head screw is provided with a second external thread which is matched with the internal thread hole. The diameter of the internal threaded hole is set to be the same as that of the internal ball head hole, and the other end of the ball head screw is provided with a second external thread, so that the other end of the ball head screw can be screwed into the internal threaded hole and then reaches the internal ball head hole.
As a further improvement of the above technical solution, the fixing member includes a connecting rod, a locking hook, a pedicle screw, and a locking plug screw; two ends of the connecting plate are provided with connecting holes, two lock hooks are arranged, one end of each lock hook is provided with a third external thread, the other end of each lock hook can be connected with the connecting rod, and one end of each lock hook can be inserted into the connecting hole and connected with a nut; the two ends of the connecting rod are provided with the pedicle screws, the end part of the connecting rod can be inserted into one end of the pedicle screw in the direction perpendicular to the axis of the pedicle screw, and the locking screw plug can be in adaptive connection with one end of the pedicle screw and is abutted against the connecting rod.
The both ends of connecting plate set up the connecting hole, make things convenient for the one end of taking the third external screw thread of latch hook to insert the connecting hole and be connected with the nut, make latch hook and connecting plate fixed mutually, and the other end and the connective bar of latch hook are connected, make the connective bar fixed mutually with the latch hook, the one end of pedicle of vertebral arch screw is inserted to two tip of connective bar, the length direction of connective bar and the length direction of pedicle of vertebral arch screw are mutually perpendicular this moment, and utilize the one end of locking plug screw in pedicle of vertebral arch screw, make pedicle of vertebral arch screw fixed mutually with the connective bar. The two ends of the connecting plate are respectively provided with the connecting rod, and the upper end and the lower end of the connecting rod are provided with the pedicle screws, so that the connecting rod is connected with the upper vertebral body and the lower vertebral body, and the stability of the titanium mesh bone grafting fixing device is enhanced.
As a further improvement of the above technical solution, the connecting hole is a second waist-shaped hole, and a length direction of the second waist-shaped hole is identical to a length direction of the first waist-shaped hole. Set up the connecting hole into second waist type hole, the length direction in second waist type hole is the same with first waist type hole, when adjusting the position of locking seat relative connecting plate in the left right direction, can adjust the relative connecting plate's of connective bar in the left right direction position, further reduces titanium net bone grafting fixing device's the installation degree of difficulty.
As a further improvement of the technical scheme, the locking screw plug is provided with an inner angle hole. The locking plug screw sets up the internal corner hole, and accessible internal wrench is screwed the locking plug screw into the internal thread hole of locking seat like plum blossom shape or hexagon socket spanner, and in addition, the nut on locking plug screw and the locking seat is independent each other, and each other does not influence, can carry out the dismouting to the nut on locking plug screw or the locking seat respectively.
As a further improvement of the technical scheme, a plurality of connecting screw holes are arranged at intervals along the circumferential direction of the titanium mesh fusion cage. The outer peripheral surface of the titanium mesh fusion device is provided with the plurality of connecting screw holes, so that the angle of the titanium mesh fusion device does not need to be adjusted too much when the ball head screw is connected with the titanium mesh fusion device, the connecting screw holes correspond to the ball head screw, and the difficulty of connecting the ball head screw and the titanium mesh fusion device is reduced.
As a further improvement of the technical scheme, the peripheral surface of the titanium mesh fusion cage is provided with a plurality of through holes, and the through holes are communicated with the bone grafting bin. The titanium mesh fusion cage is provided with a plurality of through holes communicated with the bone grafting bin, and the whole titanium mesh fusion cage is of a porous structure, so that the growth of bone tissues in the porous structure is facilitated, and the effective integration of the bone tissues and the titanium mesh fusion cage is realized.
Drawings
The invention is further described with reference to the accompanying drawings and examples;
fig. 1 is a perspective view of a titanium mesh bone grafting fixture according to an embodiment of the present invention;
FIG. 2 is a right side view of an embodiment of the present invention showing a titanium mesh bone graft fixation device;
FIG. 3 is a right side view of an embodiment of the titanium mesh bone graft fixing device in another state according to the present invention;
FIG. 4 is a perspective view of the titanium mesh bone graft fixture in a state where the titanium mesh fusion cage is omitted;
FIG. 5 is a perspective view of the titanium mesh fusion cage in the bone grafting and fixing device of the titanium mesh according to the present invention;
FIG. 6 is a perspective view of a connecting plate of the bone-grafting titanium mesh fixing device according to the present invention;
FIG. 7 is a perspective view of the locking hook of the titanium mesh bone grafting fixture according to the present invention;
FIG. 8 is a schematic structural view of a locking seat in the bone grafting titanium fixture according to the present invention;
FIG. 9 is a schematic view of the internal structure of a locking seat in the bone grafting fixture of titanium mesh according to the present invention;
FIG. 10 is a perspective view of a ball screw in the titanium mesh bone grafting fixture according to the present invention;
fig. 11 is a perspective view of a locking screw plug in the titanium mesh bone grafting fixture provided by the invention.
The drawings are numbered as follows: 100. a titanium mesh fusion device; 110. a bone grafting bin; 120. a connecting screw hole; 130. a through hole; 210. pedicle screws; 220. a locking plug screw; 300. a connecting rod; 400. a latch hook; 410. a third external thread; 420. a hook portion; 500. a locking seat; 510. a first external thread; 520. a limiting block; 530. an internally threaded bore; 540. an inner ball hole; 600. a ball head screw; 610. a threaded portion; 620. a ball head portion; 630. an inner hexagonal hole; 640. a second external thread; 700. a nut; 800. locking a screw plug; 810. an inner corner hole; 900. a connecting plate; 910. a first kidney-shaped hole; 920. a second kidney shaped aperture.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, it means one or more, a plurality is two or more, more than, less than, more than, etc. are understood as not including the present number, and more than, less than, etc. are understood as including the present number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
It should be noted that, in the drawings, the X direction is from the back side of the titanium mesh bone grafting fixture to the front side; the Y direction is from the left side of the titanium mesh bone grafting fixing device to the right side; the Z direction is from the lower side of the titanium mesh bone graft fixture to the upper side.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 11, several examples of the titanium mesh bone graft fixation device of the present invention will be described.
As shown in fig. 1 to 11, an embodiment of the present invention provides a titanium mesh bone graft fixing device, including: the titanium mesh fusion cage comprises a titanium mesh fusion cage 100, a connecting seat, a ball head screw 600, a locking screw plug 800 and a fixing piece.
As shown in fig. 1 to 3 and 5, the titanium mesh fusion device 100 is provided with a bone grafting bin 110 and a connecting screw hole 120, and the connecting screw hole 120 is located on the outer circumferential surface of the titanium mesh fusion device 100. In the operation, the broken bone is filled in the bone grafting bin 110 of the titanium mesh fusion device 100, and the titanium mesh fusion device 100 is placed in the injured vertebra of the patient to complete the bone grafting fusion, and the titanium mesh fusion device 100 can play a certain role in supporting the vertebra after the operation.
Further, a plurality of the connection screw holes 120 are provided at regular intervals or non-regular intervals along the circumferential direction of the titanium mesh fusion device 100. The connection screw hole 120 may be communicated with the bone grafting bin 110 or not. In some other embodiments, one connection screw hole 120 is provided.
In addition, the peripheral surface of the titanium mesh fusion cage 100 is provided with a plurality of through holes 130, the through holes 130 are communicated with the bone grafting bin 110, namely, the titanium mesh fusion cage 100 is in a porous structure, and by the design, the bone tissue can be promoted to grow in the porous structure, and the effective integration of the bone tissue and the titanium mesh fusion cage 100 is realized. In this embodiment, the titanium mesh cage 100 is a cylinder.
As shown in fig. 1 to 4, 6, 8 and 9, the connecting holder is provided with an inner ball hole 540 and an inner threaded hole 530, and the inner threaded hole 530 communicates with the inner ball hole 540.
Specifically, the connection seat includes a connection plate 900, a locking seat 500, and a nut 700.
The connecting plate 900 is provided with a first kidney-shaped hole 910, and after the connecting plate 900 is fixedly connected with the titanium mesh fusion device 100, two ends of the first kidney-shaped hole 910 extend along the left-right direction. In this embodiment, both ends of the connection plate 900 may be rounded.
The locking seat 500 is provided with an inner ball hole 540 and an inner thread hole 530, and the locking seat 500 is provided with a connecting portion in a cylindrical shape, which is integrally formed with the locking seat 500. The locking seat 500 is mainly integrally composed of a base plate and a connecting portion. The outer circumferential surface of the connecting portion is provided with a first external thread 510, and the diameter of the connecting portion is matched with that of the first kidney-shaped hole, so that the connecting portion can be inserted into the first kidney-shaped hole 910 and connected with a nut 700, such as a hexagon nut, to fixedly connect the locking seat 500 with the connecting plate 900.
The connecting plate 900 is provided with the first waist-shaped hole 910, so that the position of the locking seat 500 relative to the connecting plate 900 in the left-right direction can be adjusted, and the installation difficulty of the titanium mesh bone grafting fixing device is reduced.
In some embodiments, the surface of the locking seat 500 facing the connecting portion (i.e., the rear side of the locking seat 500) is protruded to form a stopper 520, and the stopper 520 is integrally formed with the locking seat 500. After connecting portion insert first waist type hole 910, make stopper 520 and connecting plate 900 joint, the trailing flank of locking seat 500 and the leading flank of connecting plate 900 laminate mutually this moment, then use the instrument to screw in nut 700 connecting portion, in operation process, because stopper 520 card is in the side of connecting plate 900, make locking seat 500 can not be rotatory relative to connecting plate 900 to be favorable to convenient nut 700 of screwing up.
In this embodiment, the stopper 520 is equipped with two and is located the both ends of locking seat 500 respectively (the upper end and the lower extreme of locking seat 500 promptly), and two stoppers 520 homoenergetic and connecting plate 900 joint, and at this moment, the distance between two stoppers 520 is unanimous with the width of connecting plate 900. When the locking seat 500 is in contact with the connecting plate 900, the connecting plate 900 can be clamped in the limited area between the two limit blocks 520, and the locking seat 500 is positioned before being fixedly connected with the connecting plate 900.
The female screw hole 530 penetrates an end surface of the connecting portion, and the inner ball hole 540 penetrates an end surface of the lock holder 500, so that the screw portion 610, which is one end of the ball screw 600, is conveniently screwed with the connecting screw hole 120 of the titanium mesh fusion cage 100 after sequentially passing through the female screw hole 530 and the inner ball hole 540. The other end of the ball screw 600, i.e., the ball head 620, passes through the internal threaded hole 530 to reach the internal ball hole 540 and is fittingly coupled to the internal ball hole 540, i.e., the ball head 620 is in contact with the wall surface of the internal ball hole 540, as shown in fig. 9 and 10.
Due to the fact that the ball head 620 and the inner ball hole 540 are appropriate in size, the ball head screw 600 is enabled to rotate for a certain angle, and therefore the angle between the connecting plate 900 and the titanium mesh fusion device 100 is adjusted in the installation process.
After the angle between the connecting plate 900 and the titanium mesh fusion device 100 is adjusted, the locking plug 800 can be connected with the internal thread hole 530, the locking plug 800 can be abutted against the other end of the ball screw 600, and the ball screw 600 is extruded by the locking plug 800, so that the ball screw 600 cannot rotate at the moment, and the titanium mesh fusion device 100 is fixed relative to the connecting plate 900.
In this embodiment, the locking plug 800 is provided with an inner angle hole 810, and the inner angle hole 810 may be an inner hexagonal hole, an inner quincuncial hole, an inner quadrangular hole or others, so that a clinician can conveniently apply a force to the locking plug 800 by using a tool such as an inner hexagonal wrench to screw the locking plug 800 into the inner threaded hole 530. By the design, the nuts 700 on the locking plug 800 and the locking seat 500 are independent from each other and do not affect each other, and the nuts 700 on the locking plug 800 or the locking seat 500 can be disassembled and assembled respectively.
In some embodiments, as shown in fig. 9 and 10, the internally threaded bore 530 has a diameter that corresponds to the diameter of the internally threaded bore 540, and the other end of the ball screw 600, i.e., the ball head 620, is provided with a second external thread 640 that is compatible with the internally threaded bore 530, to facilitate threading the other end of the ball screw 600 into the internally threaded bore 530 and into the internally threaded bore 540. Further, the ball head 620 is provided with an internal hexagonal hole 630, and the other end of the ball screw 600 can be screwed into the internal threaded hole 530 using an internal hexagonal wrench.
In addition, in other embodiments, the locking seat 500 and the connecting plate 900 may be integrally formed.
The fixing piece is provided with a first connecting end and a second connecting end, the first connecting end can be connected with the connecting seat, and the second connecting end can be connected with the spine. For example, the fixing member may be a screw, and correspondingly, the connection plate 900 is provided with a screw hole, so that the screw can stably fix the connection plate 900 on the vertebral body.
As shown in fig. 1 to 4, 6 and 7, in particular, the fixing member includes a connection rod 300, a locking hook 400, a pedicle screw 210 and a locking plug screw 220.
Both ends of the connection plate 900 are provided with connection holes. The wall surface of the connecting hole can be smooth or provided with threads.
The connecting rod 300 may be a round rod, a square rod, or others. In the present embodiment, it is preferable that the connecting rod 300 is a round rod.
The locking hook 400 is provided in two, and one end of the locking hook 400 is provided with a third external thread 410, and one end of the locking hook 400 can be inserted into the coupling hole and coupled with the nut 700, thereby fixing the locking hook 400 to the coupling plate 900. The other end of the locking hook 400, namely the hook part 420, can be connected with the connecting rod 300, specifically, the hook part 420 is provided with a mounting hole matched with the connecting rod 300, the mounting hole can be a waist-shaped hole or a round hole, after the connecting rod 300 passes through the mounting hole, the nut 700 is tightly connected with the third external thread 410 of the locking hook 400, so that the front side surface of the connecting plate 900 can apply pressure to the connecting rod 300, and the connecting rod 300 is fixed relative to the connecting plate 900.
In this embodiment, the mounting hole is a kidney-shaped hole, and the hook 420 has a notch at the mounting hole, so that the connecting rod 300 can move into the mounting hole through the notch.
The upper and lower ends of the connecting rod 300 are provided with pedicle screws 210, and the end of the connecting rod 300 can be inserted into one end of the pedicle screws 210 (i.e. the head of the pedicle screws 210) in a direction perpendicular to the axis of the pedicle screws 210, in this embodiment, the two ends of the connecting rod 300 extend in the up-down direction, and the two ends of the pedicle screws 210 extend in the front-back direction.
Then, the locking screw plug 220 is screwed into the head of the pedicle screw 210, so that the locking screw plug 220 is in fit connection with one end of the pedicle screw 210 and abuts against the connecting rod 300, and finally the fixed connection between the connecting rod 300 and the pedicle screw 210 is completed.
In some embodiments, as shown in fig. 6, the connection hole on the connection plate 900 is a second waist-shaped hole 920, and the length direction of the second waist-shaped hole 920 is the same as the length direction of the first waist-shaped hole 910, and both are the same as the Y direction. With such a structure, the position of the locking seat 500 relative to the connecting plate 900 in the left-right direction can be adjusted, and the position of the connecting rod 300 relative to the connecting plate 900 in the left-right direction can be adjusted, so that the installation difficulty of the titanium mesh bone grafting fixing device is further reduced.
The titanium mesh bone grafting fixing device provided by the invention can promote the ball head screw 600 to be respectively fixed with the titanium mesh fusion device 100 and the connecting seat so as to prevent the ball head screw 600 from displacing relative to the connecting seat, thereby preventing the titanium mesh fusion device 100 from moving relative to the connecting seat, effectively avoiding the problems of subsidence and displacement of the post-operation titanium mesh fusion device 100, better promoting the bone grafting fusion of the operation and accelerating the healing and recovery of the post-operation of a patient.
Moreover, through the setting of mounting, realize that connecting seat and centrum outer fringe are fixed mutually, guarantee that this titanium net bone grafting fixing device can stably implant patient's injured vertebra department.
And, the other end of ball screw 600 is established in the interior bulb hole 540 of connecting seat, and so design, the angle of the relative connecting seat of ball screw 600 can be adjusted to realize that the relative titanium net of connecting seat fuses 100's angularly adjustable, greatly reduced with this titanium net bone grafting fixing device install in the degree of difficulty of backbone, effectively reduce operating time, reduce surgeon's the operation degree of difficulty, the practicality is strong.
During clinical operation, an operation space is opened from the anterior approach or the lateral anterior approach of the vertebral column, focus removal of the injured vertebral column is completed according to an operation mode, and then the titanium mesh bone grafting fixing device is implanted into the vertebral body of a patient according to the following steps.
The first step is as follows: the method comprises the steps of selecting a titanium mesh fusion cage 100 with a proper specification, cutting the titanium mesh fusion cage 100 into a proper height and a proper angle, implanting crushed bone of autologous crushed bone or allogeneic bone into an internal bone grafting bin 110 of the titanium mesh fusion cage 100 by using surgical instruments, and compacting.
The second step is that: the ball screw 600 is passed through the locking seat 500, and then the ball screw 600 is screwed into the connecting screw hole 120 of the titanium mesh fusion device 100, so that the ball screw 600 is fixed with the titanium mesh fusion device 100. The titanium mesh fusion device 100 is then stabilized with the associated surgical instruments and loaded into the desired surgical placement location.
The third step: the pedicle screws 210 with proper specifications are selected, proper positions are selected to drive the pedicle screws 210 into the vertebral bodies of the patients, then the connecting rod 300 is pre-bent to a proper radian, and the connecting rod 300 is locked on the pedicle screws 210 by matching with the locking screw plugs 220.
The fourth step: the two locking hooks 400 respectively and correspondingly penetrate through the left and right connecting holes of the connecting plate 900, and the locking hooks 400 are pre-locked by using nuts 700; placing the connecting rod 300 in the mounting hole of the locking hook 400; next, the lock holder 500 is attached to the connection plate 900, and the lock holder 500 is preliminarily locked by the nut 700.
The fifth step: the locking hook 400 is locked by a tool, the distance between the locking seat 500 and the connecting plate 900 is adjusted by adjusting the ball screw 600, then the locking screw 600 is locked by the locking plug screw 800, and the locking seat 500 is locked by the nut 700.
And finally, cleaning and suturing the wound to finish the operation.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. A titanium mesh bone grafting fixation device, comprising:
the titanium mesh fusion cage (100) is provided with a bone grafting bin (110) and a connecting screw hole (120), and the connecting screw hole (120) is formed in the outer peripheral surface of the titanium mesh fusion cage (100);
the connecting seat is provided with an inner ball head hole (540) and an inner threaded hole (530), and the inner threaded hole (530) is communicated with the inner ball head hole (540);
one end of the ball head screw (600) can be connected with the connecting screw hole (120), and the other end of the ball head screw can be in adaptive connection with the inner ball head hole (540);
a locking plug screw (800) which can be connected to the internal thread hole (530), and the locking plug screw (800) can abut against the other end of the ball screw (600);
the fixing piece is provided with a first connecting end and a second connecting end, the first connecting end can be connected with the connecting seat, and the second connecting end can be connected with a spine.
2. The titanium mesh bone graft fixation device of claim 1, wherein the connection seat comprises a connection plate (900), a locking seat (500) and a nut (700); the connecting plate (900) is provided with a first waist-shaped hole (910), the locking seat (500) is provided with the inner ball head hole (540) and an inner threaded hole (530), the locking seat (500) is provided with a cylindrical connecting part, the outer peripheral surface of the connecting part is provided with a first external thread (510), and the connecting part can be inserted into the first waist-shaped hole (910) and connected with the nut (700); the internal thread hole (530) penetrates an end surface of the connecting portion, and the internal ball hole (540) penetrates an end surface of the lock base (500).
3. The titanium mesh bone grafting fixing device according to claim 2, wherein the locking seat (500) protrudes towards the surface of the connecting part to form a limiting block (520), and the limiting block (520) can be clamped with the connecting plate (900).
4. The titanium mesh bone grafting fixing device according to claim 3, wherein the two limiting blocks (520) are respectively arranged at two ends of the locking seat (500), and the two limiting blocks (520) can be clamped with the connecting plate (900).
5. The titanium mesh bone graft fixation device of claim 4, wherein the diameter of the internally threaded hole (530) coincides with the diameter of the internal ball hole (540); the other end of the ball head screw (600) is provided with a second external thread (640) which can be matched with the internal thread hole (530).
6. The titanium mesh bone graft fixation device according to any one of claims 2 to 5, wherein the fixture comprises a connection rod (300), a locking hook (400), a pedicle screw (210), and a locking plug screw (220); two ends of the connecting plate (900) are respectively provided with a connecting hole, two locking hooks (400) are arranged, one end of each locking hook (400) is provided with a third external thread (410), the other end of each locking hook (400) can be connected with the connecting rod (300), and one end of each locking hook (400) can be inserted into the connecting hole and connected with a nut (700); both ends of the connecting rod (300) are provided with the pedicle screws (210), the end part of the connecting rod (300) can be inserted into one end of the pedicle screws (210) in the direction perpendicular to the axis of the pedicle screws (210), and the locking screw plug (220) can be in adaptive connection with one end of the pedicle screws (210) and is abutted against the connecting rod (300).
7. The titanium mesh bone grafting fixture according to claim 6, wherein the connecting hole is a second kidney-shaped hole (920), and the length direction of the second kidney-shaped hole (920) is consistent with the length direction of the first kidney-shaped hole (910).
8. The titanium mesh bone graft fixation device of claim 7, wherein the locking screw plug (800) is provided with an inner corner hole (810).
9. The titanium mesh bone graft fixation device according to claim 8, wherein the connection screw holes (120) are provided in plurality at intervals along a circumferential direction of the titanium mesh cage (100).
10. The titanium mesh bone grafting fixture according to claim 9, wherein the outer peripheral surface of the titanium mesh fusion cage (100) is provided with a plurality of through holes (130), and the through holes (130) are communicated with the bone grafting bin (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734183.XA CN113520678B (en) | 2021-06-30 | 2021-06-30 | Titanium mesh bone graft fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110734183.XA CN113520678B (en) | 2021-06-30 | 2021-06-30 | Titanium mesh bone graft fixation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113520678A true CN113520678A (en) | 2021-10-22 |
| CN113520678B CN113520678B (en) | 2024-03-26 |
Family
ID=78097302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110734183.XA Active CN113520678B (en) | 2021-06-30 | 2021-06-30 | Titanium mesh bone graft fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113520678B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115445A (en) * | 2005-02-08 | 2008-01-30 | 汉宁·卡路仕 | Vertebra fixer |
| CN201040010Y (en) * | 2007-06-06 | 2008-03-26 | 中国人民解放军第二军医大学 | A Full Contact Spinal Titanium Mesh Bone Graft Fusion Device |
| US20090210009A1 (en) * | 2008-01-17 | 2009-08-20 | Ching-Kong Chao | Vertebral Fixation Plate Assembly |
| CN201537127U (en) * | 2009-09-22 | 2010-08-04 | 郭谦 | Dissection gasket with double holes and double feet and anterior thoracolumbar screw rod system |
| CN202446235U (en) * | 2012-02-23 | 2012-09-26 | 北京市富乐科技开发有限公司 | Spinal anterior inside holder system in an all built-in expandable type |
| US20140316472A1 (en) * | 2013-04-17 | 2014-10-23 | Leroy Rise | Low-Profile, High Tension Mesh Plate for Subcutaneous Fracture Fixation |
| CN203988504U (en) * | 2014-07-02 | 2014-12-10 | 南方医科大学 | A kind of elasticity artificial vertebral body |
| CN105055055A (en) * | 2015-08-12 | 2015-11-18 | 陈伟 | Bionic artificial vertebra with capacity of motion and capable of being implanted conveniently |
| CN205569049U (en) * | 2016-03-21 | 2016-09-14 | 钟兵 | A internal fixation device for anterior cervical spine fuses |
| CN107693169A (en) * | 2017-09-16 | 2018-02-16 | 武汉光谷北宸医疗器械有限公司 | Wedged accommodating intraocular centrum |
| CN215228874U (en) * | 2021-06-07 | 2021-12-21 | 右江民族医学院附属医院 | Anterior spinal titanium mesh fixing nail plate device |
-
2021
- 2021-06-30 CN CN202110734183.XA patent/CN113520678B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101115445A (en) * | 2005-02-08 | 2008-01-30 | 汉宁·卡路仕 | Vertebra fixer |
| CN201040010Y (en) * | 2007-06-06 | 2008-03-26 | 中国人民解放军第二军医大学 | A Full Contact Spinal Titanium Mesh Bone Graft Fusion Device |
| US20090210009A1 (en) * | 2008-01-17 | 2009-08-20 | Ching-Kong Chao | Vertebral Fixation Plate Assembly |
| CN201537127U (en) * | 2009-09-22 | 2010-08-04 | 郭谦 | Dissection gasket with double holes and double feet and anterior thoracolumbar screw rod system |
| CN202446235U (en) * | 2012-02-23 | 2012-09-26 | 北京市富乐科技开发有限公司 | Spinal anterior inside holder system in an all built-in expandable type |
| US20140316472A1 (en) * | 2013-04-17 | 2014-10-23 | Leroy Rise | Low-Profile, High Tension Mesh Plate for Subcutaneous Fracture Fixation |
| CN203988504U (en) * | 2014-07-02 | 2014-12-10 | 南方医科大学 | A kind of elasticity artificial vertebral body |
| CN105055055A (en) * | 2015-08-12 | 2015-11-18 | 陈伟 | Bionic artificial vertebra with capacity of motion and capable of being implanted conveniently |
| CN205569049U (en) * | 2016-03-21 | 2016-09-14 | 钟兵 | A internal fixation device for anterior cervical spine fuses |
| CN107693169A (en) * | 2017-09-16 | 2018-02-16 | 武汉光谷北宸医疗器械有限公司 | Wedged accommodating intraocular centrum |
| CN215228874U (en) * | 2021-06-07 | 2021-12-21 | 右江民族医学院附属医院 | Anterior spinal titanium mesh fixing nail plate device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113520678B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8486072B2 (en) | Implant for treating a proximal fracture of the humerus | |
| US11058468B2 (en) | Bone fixation device and method of use | |
| AU2014248622B2 (en) | Pedicle screw with reverse spiral cut and methods thereof | |
| CA2840128C (en) | Bone screw, and bone fixation system and method | |
| US6887275B2 (en) | Maxillofacial anchoring system for alveolar and small bone skeletal distraction | |
| US20060241591A1 (en) | Vertebral pars interarticularis clamp a new spine fixation device, instrumentation, and methodology | |
| JP2002520117A (en) | Bone fixation device | |
| JPH08506502A (en) | Anterior cervical implant device | |
| JP7412508B2 (en) | Bone fixation implants and transplantation methods | |
| KR20050123111A (en) | Hybrid interlocking proximal femoral fracture fixation | |
| US12336738B2 (en) | Internal fixation system for anatomical reduction of fractured vertebral body of spine and intravertebral bone grafting | |
| CN113520678A (en) | Titanium mesh bone graft fixation device | |
| CN215228874U (en) | Anterior spinal titanium mesh fixing nail plate device | |
| CN205107855U (en) | Lateral Shift Tail, Lateral Adjustable Spinal Screws | |
| US7833247B2 (en) | Orthopedic clamps | |
| CN120267443B (en) | An artificial mid-femoral prosthesis implanted through holes at both ends | |
| WO2001097744A2 (en) | Expandable vertebral replacement prosthesis | |
| CN119606503B (en) | An anterior spinal structural bone grafting internal fixation device | |
| CN215228866U (en) | an intervertebral fusion device | |
| CN215129883U (en) | Thoracolumbar internal fixation system | |
| CN219782704U (en) | Dynamic hybrid intramedullary fixation device for treating ankle fusion | |
| CN115770127B (en) | An internal support repair system for proximal humeral fractures | |
| CN220370051U (en) | Artificial pedicle and intramedullary nail for vertebral arch | |
| CN114176747B (en) | Atlantoaxial joint fusion device | |
| CN118121285A (en) | A spinal spondylolysis fusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |