CN110101447A - A kind of special fixing device meeting cervical spine chest section anatomy and biomethanics - Google Patents
A kind of special fixing device meeting cervical spine chest section anatomy and biomethanics Download PDFInfo
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- CN110101447A CN110101447A CN201910428689.0A CN201910428689A CN110101447A CN 110101447 A CN110101447 A CN 110101447A CN 201910428689 A CN201910428689 A CN 201910428689A CN 110101447 A CN110101447 A CN 110101447A
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- 210000003484 anatomy Anatomy 0.000 title claims abstract description 27
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 31
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims 1
- 210000000038 chest Anatomy 0.000 description 88
- 210000000115 thoracic cavity Anatomy 0.000 description 15
- 208000007623 Lordosis Diseases 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 241001448725 Endorchis Species 0.000 description 1
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 206010023509 Kyphosis Diseases 0.000 description 1
- 206010052211 Oesophageal rupture Diseases 0.000 description 1
- 206010058907 Spinal deformity Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 210000003238 esophagus Anatomy 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000009251 neurologic dysfunction Effects 0.000 description 1
- 208000015015 neurological dysfunction Diseases 0.000 description 1
- 230000000926 neurological effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 206010041569 spinal fracture Diseases 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 238000011477 surgical intervention Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 208000029761 vertebral disease Diseases 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The invention discloses a kind of special fixing devices for meeting cervical spine chest section anatomy and biomethanics, including titanium plate ontology, titanium plate ontology one end is neck end, the titanium plate ontology other end is chest end, chest end width is greater than neck end width, it is several linkage sections between chest end and neck end, chest end, neck end and linkage section are structure as a whole and chest end, linkage section and neck end constitute smooth S type, meet the anatomic form of neck chest section backbone, make titanium plate ontology that there is good adhesion, chest end, neck end is provided with a pair of screws hole, it is equipped with screw thread in screw hole and is combined with matching screw, a pair of screws is also provided with locking nail hole between hole, pinning is equipped in locking nail hole, locking nail hole is located in a straight line with a pair of screws hole, the head of a nail of pinning can block the screw head of a nail, it is bone grafting form between pinning.The present invention solves the problems, such as at home and abroad still to lack the anatomical form Special fixing plate at this position at present.
Description
Technical field
The invention belongs to internal fixation device of spine technical fields, and in particular to one kind meets cervical spine chest section anatomy and life
The special fixing device of material resources.
Background technique
Cervical spine chest section (Cervicothoracic Junction) is often referred to cervical vertebra to the region of thoracic vertebrae gradually transition, and one
As refer to neck 6 to 2 segment of chest.The segment is anatomically more special, and specifically the physiological camber of cervical vertebra is lordosis, the life of thoracic vertebrae
Manage curvature be it is rear convex, therefore, which is the region that shape is gradually moved from cervical lordosis to thoracic kyphosis.In biomethanics
On, cervical spine chest section is located between the maximum cervical vertebra of mobility and the smallest thoracic vertebrae of mobility, is the portion that backbone stress is most concentrated
One of position.The fracture dislocation of neck chest section is clinically much, accounts for about the 9% of fracture of cervical spine.According to statistics, China falls ill every year
Number is about 1,130,000 person-times.However, the particularity due to neck chest section in dissection and biomethanics, damage rear stability is very poor,
Prognosis is bad, and about 60%~80% patient can merge spinal cord or root compression simultaneously, corresponding irritation occurs.Neck chest section bone
Folding dislocation often results in serious neurological dysfunction and mechanical stability is lost, main reason is that: 1. neck chest section is located at human body
The stability of the region of stress concentration that cervical vertebra and thoracic vertebrae have a common boundary, fracture backfin necking chest section is severely impacted；2. neck chest section
Intraspinal tube has cervical enlargement (neck marrow Section 4 to chest marrow Section 1) to exist, the gap relative narrowness in front of endorchis, in addition such damage
Wound merges serious intervertebral disk injury or disc herniation mostly, easily causes serious compression in front of spinal cord, causes to paralyse；3. thoracic vertebrae
Since there is the influence such as thorax and nerve in front, no matter appearing from operation or performing the operation fixed all extremely difficult；4. at present not
By being international or at home still lack a kind of anatomical form Special fixing plate for fixing this privileged sites.
The Surgical treatment of surgical intervention is abundant decompression, correct deformity, recovery and rebuilds the anatomic morphological of canalis spinalis, promotes
The stability of neurological functional recovery and neck chest section.Clinic is frequently with preceding road, the way of escape and Anterior-posterior operation mode.So
And 95% or more neck chest section damage be front vertebral fracture or dislocation caused by, before backbone center pillar be maintain backbone
The main part of stability, this is just determined, and to be that neck thoracic fracture is optimal through neck chest section anterior decompression, interbody bone graft control
Treatment method.Therefore, most neck chest section injured patients need row result of anterior route.Anterior lateral cervical approach wound is small, can not only release
Spinal compression, and the stability of backbone can be rebuild.Decompression bone grafting is carried out from preceding road, fixed plate fixation can correct neck chest section
Deformity of spine, the physiological camber and canalis spinalis internal volume for restoring neck chest section backbone, prevent plant bone mass from falling off, poor healing and vacation
Joint is formed.The stability of neck chest section backbone at once can be improved in fixation in reliable, is conducive to patient exercise and rehabilitation, reduces and cuts
The related complication of paralysis.
When the preceding road of neck chest section progress is fixed, need to be fixed using fixed plate to rebuild the stability of neck chest section backbone.
However, a kind of anatomical form Special fixing plate of the current international and national still without this position, is by anterior cervical vertebrae both at home and abroad
Fixed plate is applied to this position.However vertebrae front fixing plate and not applicable neck chest section backbone is fixed, mainly have following
Reason: 1. neck chest section includes Cervical vertebra and Upper thoracic, and the physiological camber of Cervical vertebra is lordosis, after dot therein is located at backbone
Side.The physiological camber of thoracic vertebrae be it is rear convex, dot therein is located at the front of backbone.I.e. this position shows as cervical lordosis to chest
It is convex after vertebra to migrate region.We have found after the curvature by measurement normal adult neck chest section: 6~neck of neck, 7 segment (including neck
7 centrum of 6 centrums, 6.7 interverbebral disc of neck and neck) forward curvature is 13~15 °, 1~chest of chest, 2 segment (including 1 centrum of chest, chest 1.2
2 centrum of interverbebral disc and chest) curvature backward is 10~13 °.However, fixed plate applied by clinic is the list to lordosis at present
The cervical vertebra fixed plate of one curvature, this fixed plate are not particularly suited for this privileged sites of neck chest section, and therefore, it is necessary to by right in art
Fixed plate, which carries out bending, can just be fixed, and otherwise fixed plate cannot attach neck chest section backbone completely, lead to the screw of fixed plate
Hole and corresponding cone shape in an angle, do not have fixed function, are unfavorable for the reconstruction of neck chest section spinal stability；2. neck chest section
In neck 6,7 centrum transverse diameter of neck be 24~28mm, chest 1,2 centrum transverse diameter of chest be 30~34mm, the centrum of thoracic vertebrae is relative to cervical vertebra
The transverse diameter of centrum is wide, and vertebrae front fixing plate is a rectangular configuration at present, does not meet the anatomic morphological of neck chest section centrum,
And there are the unstable characteristic of parallelogram, the fastness after fixing is poor；3. dedicated due to lacking this regional anatomic type
Fixed plate, operative doctor usually select relatively long cervical vertebra fixed plate to carry out live bending, thus bring own shortcomings: the
One: fixed plate is too long, postoperative to accelerate the risk for closing on segment regression, and the upper end of fixed plate increases Cervical Disk Herniation, neck
The lower end of the risk of vertebra disease, fixed plate increases the risk of thoracic intervertebral disc protrution；Second: the screw hole in bending rear fixed plate becomes
Shape, fixing glue cannot tighten completely or cannot use fixing glue at all, cause fixed plate to be easy to appear loosening, fracture etc., draw
The severe complications such as esophageal rupture, thoracic cavity infection are played, so as to cause death.
Summary of the invention
The object of the present invention is to provide a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics, solutions
It has determined the problem of at home and abroad still lacking the anatomical form Special fixing plate at this position at present.
The technical scheme adopted by the invention is that a kind of dedicated fixation for meeting cervical spine chest section anatomy and biomethanics
Device, including titanium plate ontology, titanium plate ontology one end are neck end, and the titanium plate ontology other end is chest end, and the width at chest end is greater than neck end
Width, titanium plate ontology is gradually broadening from neck end to chest end, between chest end and neck end be several linkage sections, chest end, neck end with
And linkage section is structure as a whole and chest end, linkage section and neck end constitute smooth S type, meets the anatomy shape of neck chest section backbone
State makes titanium plate ontology have good adhesion；Chest end, neck end are provided with a pair of screws hole, and screw thread is equipped in screw hole and is matched
Conjunction has matching screw, and locking nail hole is also provided between a pair of screws hole, pinning, locking nail hole are equipped in locking nail hole
It is located in a straight line with a pair of screws hole, the head of a nail of pinning can block the head of a nail of screw by rotation.
The features of the present invention also characterized in that
Also it is provided with a pair of screws hole on linkage section, screw thread is equipped in screw hole and is combined with matching screw, it is a pair of
It is also provided with locking nail hole between screw hole, pinning is equipped in locking nail hole, locking nail hole and a pair of screws hole are located at one directly
On line, the head of a nail of pinning can block the screw head of a nail.
The head of a nail of pinning is similar round structure, and the head of a nail diameter of pinning is greater than the spacing between a pair of screws hole, pinning nail
The both ends of cap wherein central axes are symmetrically recessed notch, and notch radian is consistent with the screw hole radian of respective side, pinning
The head of a nail be rotated by 90 ° achieve the purpose that lock screw or unclamp screw.
Linkage section quantity is 0~2.
The ontology of titanium plate between adjacent pinning is the bone grafting form of engraved structure, and bone grafting form is used to observe the position of bone grafting
It sets and bone grafting situation.
The edge at chest end and neck end is rounding corner structure.
The width at chest end is 20~23mm, and the width at neck end is 16~18mm.
The length at neck end to chest end is 24~66mm.
Angle is 10~13 ° between chest end and circular arc section.
Angle is 12~15 ° between neck end and circular arc section.
Present invention has the advantages that a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics, titanium
Plate is non-wide trapezoidal design, such to design the physiology anatomical features for more meeting neck chest section backbone, firstly, because lower cervical part of esophagus
Centrum be significantly less than the centrum of upper thoracic section, trapezoidal form has better biomechanical stability compared with traditional rectangular form, increases
The stability and intensity for having added fixed plate prevent the loosening of fixed plate from deviating from；Secondly, compared with traditional titanium plate, titanium plate of the present invention
Surface neck end and circular arc section between angle be 12~15 °, " S " type that angle is 10~13 ° between chest end and circular arc section
Titanium plate meets the physiological camber of neck chest section backbone, have better adhesion, prevent the screw being fixed on spinal vertebral due to
Adhesion is poor, and the loosening of screw is caused to be extracted；Finally, can lock screw when pinning is locking state, prevent from exiting, when
It is then releasing orientation, pinning can exit when pinning is rotated by 90 ° counterclockwise.
Detailed description of the invention
Fig. 1 is that a kind of sagittal plain for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention is cutd open
Face structural schematic diagram (1 linkage section)；
Fig. 2 is a kind of top view for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention
(no pinning and screw)；
Fig. 3 is a kind of cut-away view for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention；
Fig. 4 is a kind of top view for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention
(having pinning)；
Fig. 5 is a kind of loxosis figure for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention；
Fig. 6 is a kind of top view for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention
(having pinning and screw)；
Fig. 7 is a kind of side bitmap for the special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention
(having pinning and screw).
In figure, 1. neck ends, 2. chest ends, 3. linkage sections, 4. screws, 5. pinnings, 6. screw holes, 7. locking nail holes, 8. bone graftings view
Window.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention, structure such as Fig. 1~7 institute
Show, including titanium plate ontology, titanium plate ontology one end is neck end 1, and the titanium plate ontology other end is chest end 2, and 2 width of chest end is greater than neck end 1
Width, between chest end 2 and neck end 1 be several linkage sections 3, chest end 2, neck end 1 and linkage section 3 are structure as a whole and chest end 2,
Linkage section 3 and neck end 1 constitute smooth " S " type, meet the anatomic form of neck chest section backbone, and titanium plate ontology is made to have good patch
Attached property, chest end 2, neck end 1 are provided with a pair of screws hole 6, are equipped with screw thread in screw hole 6 and are combined with matching screw 4, and one
To locking nail hole 7 is also provided between screw hole 6, pinning 5, locking nail hole 6 and 7, a pair of screws hole are equipped in locking nail hole 7
In on straight line, the head of a nail of pinning 5 can block 4 head of a nail of screw.Also a pair of screws hole 6, screw hole 6 are provided on linkage section 3
It is interior to be equipped with screw thread and be combined with matching screw 4, it is also provided with locking nail hole 7 between a pair of screws hole 6, matches in locking nail hole 7
Conjunction is provided with pinning 5, and locking nail hole 6 is located in a straight line with a pair of screws hole 7, and the head of a nail of pinning 5 can block the nail of screw 4
Cap.
The head of a nail of pinning 5 is similar round structure, and the head of a nail diameter of pinning 5 is greater than the spacing between a pair of screws hole, pinning 5
The both ends of the head of a nail wherein central axes are symmetrically recessed notch, and notch radian is consistent with the screw hole radian of respective side, lock
The head of a nail of nail 5, which is rotated by 90 °, achievees the purpose that lock screw 4 or release screw 4.
3 quantity of linkage section is 0~2.
Titanium plate ontology between adjacent pinning 5 is the bone grafting form 8 of engraved structure, can directly be seen by bone grafting form 8
Examine position and the bone grafting situation of bone grafting.
The edge at chest end 2 and neck end 1 is rounding corner structure.
The width at chest end 2 is 20~23mm.
The width at neck end 1 is 16~18mm.
The length at neck end 1 to chest end 2 is 24~66mm.
Angle is 10~13 ° between chest end 2 and circular arc section.
Angle is 12~15 ° between neck end 1 and circular arc section.
A kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics of the present invention, it is first when using fixing
The neck end 1 of titanium plate ontology is first placed on Cervical vertebra, the chest end 2 of titanium plate ontology is placed in Upper thoracic, the radian of the titanium plate ontology
It can be made sufficiently to be attached on the spinal vertebral of neck chest section；Screw 4 is passed through to the chest end 2 and neck end at titanium plate ontology both ends respectively
1 screw hole is vertically screwed into the centrum of Upper thoracic and Cervical vertebra, enhances the holding power of screw 4；Pinning 5 is finally rotated, makes to lock
The screw 4 that 5 two sides circular arc portions fix two sides respectively is followed closely, enhances the stability of titanium plate ontology, while preventing screw 4 from skidding off.When
When needing to dismantle, 90 degree of rotation pinnings 5, the part for making pinning 5 be recessed notch goes to ipsilateral 4 edge of screw just, in this way
Pinning 5 just loses locking function, at this point, screw 4 is back-outed.
In the present invention, the wide determination basis of fixed plate plate: neck 6,7 centrum transverse diameter of neck in Chinese compatriots' neck chest section be 24~
28mm, chest 1,2 centrum transverse diameter of chest are 30~34mm, wide with plate 2/3 or more centrum of wide covering according to clinical use safety needs
Degree is design principle, and the neck end width design of titanium plate is 16~18mm, and chest end is 20~23mm.Sagittal plain curvature: neck end 1 and circle
Angle is 12~15 ° between arc section, and angle is 10~13 ° between chest end 2 and circular arc section.Therefore, fixed plate is designed as
Angle is 12~15 ° between neck end 1 and circular arc section, and angle is 10~13 ° between chest end 2 and circular arc section.According to interverbebral disc
Highly 5~6mm is calculated.According to clinical use safety needs, the neck end of fixed plate covers upper vertebral height 1/2, fixed plate
To cover the next vertebral height 1/2 be design principle at chest end, according to compatriots' neck chest section vertebral height, single segmental titanium plate (includes 2
Centrum and 1 interverbebral disc) Design of length be 24~30mm, later every 2mm is the fixed plate that a system is made into different length,
Wherein the Design of length of two segment fixed plate (including 3 centrums and 2 interverbebral discs) is 40~46mm, three segment fixed plates (are wrapped
Containing 4 centrums and 3 interverbebral discs) Design of length be 60~66mm.It is shown in Table 1
The average value and standard value of 1 each measurement item of Chinese Adult centrum of table
Claims (10)
1. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics, which is characterized in that including titanium plate sheet
Body, titanium plate ontology one end are neck end (1), and the titanium plate ontology other end is chest end (2), and chest end (2) width is greater than neck end (1) width,
It is several linkage sections (3) between chest end (2) and neck end (1), chest end (2), neck end (1) and linkage section (3) are structure as a whole
And chest end (2), linkage section (3) and the smooth S type of neck end (1) composition, meet the anatomic form of neck chest section backbone, makes titanium plate ontology
With good adhesion, chest end (2), neck end (1) are provided with a pair of screws hole (6), and screw thread is equipped in screw hole (6) and is cooperated
Have matching screw (4), be also provided between a pair of screws hole (6) locking nail hole (7), is equipped in locking nail hole (7)
Pinning (5), locking nail hole (7) are located in a straight line with a pair of screws hole (6), and the head of a nail of pinning (5) can block screw (4) nail
Cap.
2. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 1,
It is characterized in that, is also provided with a pair of screws hole (6) on the linkage section (3), screw thread is equipped in screw hole (6) and is combined with therewith
The screw (4) matched is also provided with locking nail hole (7) between a pair of screws hole (6), is equipped with pinning (5) in locking nail hole (7),
Locking nail hole (7) is located in a straight line with a pair of screws hole (6), and the head of a nail of pinning (5) can block screw (4) head of a nail.
3. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 1,
It is characterized in that, the head of a nail of the pinning (5) is similar round structure, and the head of a nail diameter of pinning (5) is greater than between a pair of screws hole (6)
Spacing, the both ends of pinning (5) head of a nail wherein central axes are symmetrically recessed notch, the screw of notch radian and respective side
Hole (6) radian is consistent, and the head of a nail of pinning (5), which is rotated by 90 °, to be achieved the purpose that lock screw (4) or unclamp screw (4).
4. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 1,
It is characterized in that, linkage section (3) quantity is 0~2.
5. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 1,
It is characterized in that, the titanium plate ontology between adjacent pinning (5) is the bone grafting form (8) of engraved structure, and bone grafting form (8) is for observing
The position of bone grafting and bone grafting situation.
6. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 1,
It is characterized in that, the edge of the chest end (2) and neck end (1) is rounding corner structure.
7. described in any item according to claim 1~6 a kind of meet the dedicated solid of cervical spine chest section anatomy and biomethanics
Determine device, which is characterized in that the width of the chest end (2) is 20~23mm, and the width of the neck end (1) is 16~18mm.
8. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 7,
It is characterized in that, the length of the neck end (1) to chest end (2) is 24~66mm.
9. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 7,
It is characterized in that, angle is 10~13 ° between the chest end (2) and circular arc section.
10. a kind of special fixing device for meeting cervical spine chest section anatomy and biomethanics according to claim 7,
It is characterized in that, angle is 12~15 ° between the neck end (1) and circular arc section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428689.0A CN110101447B (en) | 2019-05-22 | 2019-05-22 | Special fixing device who accords with backbone cervicothorax section anatomy and biomechanics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428689.0A CN110101447B (en) | 2019-05-22 | 2019-05-22 | Special fixing device who accords with backbone cervicothorax section anatomy and biomechanics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110101447A true CN110101447A (en) | 2019-08-09 |
| CN110101447B CN110101447B (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910428689.0A Expired - Fee Related CN110101447B (en) | 2019-05-22 | 2019-05-22 | Special fixing device who accords with backbone cervicothorax section anatomy and biomechanics |
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| CN (1) | CN110101447B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110801272A (en) * | 2019-11-10 | 2020-02-18 | 迪恩医疗科技有限公司 | Internal fixing plate for anterior cervical and thoracic regions |
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|---|---|
| CN110101447B (en) | 2022-05-03 |
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