CN103845107B - Posterior cervical opens the door and supports fixing head - Google Patents

Posterior cervical opens the door and supports fixing head Download PDF

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Publication number
CN103845107B
CN103845107B CN201410013741.3A CN201410013741A CN103845107B CN 103845107 B CN103845107 B CN 103845107B CN 201410013741 A CN201410013741 A CN 201410013741A CN 103845107 B CN103845107 B CN 103845107B
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Prior art keywords
door
fixing head
nail
brace table
face
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CN201410013741.3A
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CN103845107A (en
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侯勇
郭鲁闽
侯欣然
聂林
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Qilu Hospital of Shandong University
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侯勇
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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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant

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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)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
  • Surgical Instruments (AREA)

Abstract

Posterior cervical of the present invention opens the door and supports fixing head, it is characterized in that: the bar shaped titanium plate comprising the complications of a shaping, bar shaped titanium plate comprises the fixing head of the left and right sides and is connected to middle brace table, brace table has the end face keeping the side, two, left and right of door opening state for supporting cervical vertebra and be connected to centre, brace table end face is the arc surface to lower recess, two angles between side and end face are acute angle, the canned paragraph of both sides is provided with nail, and in nail, mounting screw is to be fixed on cervical vertebra upward-acting door place.The invention has the beneficial effects as follows, structure is simple, convenient fixing is firm, support effect is good, effectively can prevent the vertebral plate resilience after opening the door and close the door, can not charge into canalis spinalis, lay easy, titanium alloy sheet is convenient to moulding as required.

Description

Posterior cervical opens the door and supports fixing head
Technical field
The invention belongs to operational tool, relate to the enabling of a kind of posterior cervical and support fixing head.
Background technology
Along with aged tendency of population, the sickness rate of stenosis increases gradually, and has a strong impact on quality of life and the life-span of people.The modus operandi of spinal canal stenosis comprises anterior approach, the way of escape and facet locking Spinal canal decompression.For long segment spinal canal stenosis, neck posterior approach has obvious advantage.Cervical vertebra open-door laminoplasty Plastic operation becomes the effective ways for the treatment of Multilevel cervical spondylotic myelopathy, long segment cervical ossified posterior longitudinal ligament and Development cervical canal stenosis.Tradition single open-door vertebral plate fixed form is suture suspension method, but cutting out, rupture or extending of silk thread, can cause vertebral plate resilience, easily occur phenomenon of closing the door, causing open the door inefficacy and canalis spinalis again narrow.Way of escape titanium plate relies on the supporting role of titanium plate design itself, and attachment screw is fixed, and reaches the object of the early stage vertebral plate supported and fixedly raise, and prevents the vertebral plate over-activity after opening the door, is conducive to axle side seam matter immediate union; Stable support can be provided for the canalis spinalis expanded in conjunction with the support force of titanium plate after the sclerotin healing of axle side, prevent from closing the door.
Current clinical gripper shoe used has following shortcoming: 1. opening part can charge into canalis spinalis, causes compression of spinal cord; 2. lay difficulty; 3. screw is tiny, fixing not firm; 4. moulding difficulty.
Summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the posterior cervical enabling that a kind of structure is simple, convenient fixing is firm, support effect is good and supports fixing head.
The present invention is achieved through the following technical solutions:
Posterior cervical of the present invention opens the door and supports fixing head, it is characterized in that: the bar shaped titanium plate comprising the complications of a shaping, bar shaped titanium plate comprises the fixing head of the left and right sides and is connected to middle brace table, brace table has the end face keeping the side, two, left and right of door opening state for supporting cervical vertebra and be connected to centre, brace table end face is the arc surface to lower recess, two angles between side and end face are acute angle, the canned paragraph of both sides is provided with nail, and in nail, mounting screw is to be fixed on cervical vertebra upward-acting door place.
Preferred version is, every side has one or two nail, and the nail number of both sides is identical or different.
When performing the operation for single open-door, the fixing head being fixed on vertebral plate side has two nail, and the fixing head being fixed on lateral mass side has a nail.
When performing the operation for double door, the fixing head of both sides is all have two nail.
The side, two, left and right of brace table is outward-dipping, forms the structure that top width is greater than root width.
Bar shaped titanium plate thickness 1mm, width 6mm, brace table end face recess length 12mm-14mm, brace table side length 3mm, screw diameter 3.5mm, length 4mm, 6mm or 8mm are self tapping cancellous bone screw.
The invention has the beneficial effects as follows, structure is simple, convenient fixing is firm, support effect is good, effectively can prevent the vertebral plate resilience after opening the door and close the door, can not charge into canalis spinalis, lay easy, titanium alloy sheet is convenient to moulding as required.
Accompanying drawing explanation
Fig. 1,2 is followed successively by front view and the top view that the enabling of single open-door posterior cervical supports fixing head.Fig. 3,4 is followed successively by front view and the top view that the enabling of double door posterior cervical supports fixing head.Fig. 5 is single open-door using state schematic diagram, and Fig. 6 is double door using state schematic diagram.
In figure, 1 fixing head, 2 sides, 3 end faces, 4 nail, 5 vertebral plate sides, 6 lateral mass sides, 7 screws, 8 posterior cervicals open the door and support fixing head.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.
Posterior cervical of the present invention opens the door and supports fixing head 8, comprise the bar shaped titanium plate of the complications of a shaping, bar shaped titanium plate comprises the fixing head 1 of the left and right sides and is connected to middle brace table, brace table has the side, two, left and right 2 for supporting cervical vertebra maintenance door opening state and is connected to middle end face 3, brace table end face is the arc surface to lower recess, two angles between side and end face are acute angle, and the canned paragraph of both sides is provided with nail 4, and in nail, mounting screw 7 is to be fixed on cervical vertebra upward-acting door place.
Preferred version is, every side has one or two nail, and the nail number of both sides is identical or different.
When performing the operation for single open-door, the fixing head being fixed on vertebral plate side 5 has two nail, and the fixing head being fixed on lateral mass side 6 has a nail.
When performing the operation for double door, the fixing head of both sides is all have two nail.
The side, two, left and right of brace table is outward-dipping, forms the structure that top width is greater than root width.
The invention belongs to the support fixing head that orthopaedics posterior cervical opens the door postoperative.Be made up of the bar shaped titanium plate of complications and screw, be divided into two kinds: single open-door (I type) and double door (II type).
Supporting plate material is titanium alloy, in the bar shaped of complications, and thickness 1mm, width 6mm.Tortuous recess is curved, long 12mm, 14mm.Turnover director 3mm, in acute angle.I template vertebral plate side nail two, lateral mass side nail 1, respectively there are two nail II template both sides, diameter 3.5mm.Screw diameter 3.5mm, length 4mm, 6mm, 8mm are self tapping cancellous bone screw.
Single open-door operation method: ventricumbent position after patient's general anesthesia; get standard neck way of escape otch; appear C3-C7 vertebral plate, spinous process, lateral mass; according to narrow segment, C3-C7(or C6) as decompression sections, at lateral mass and vertebral plate intersection; pot mill is drilled in axle side and thoroughly removes dorsal part cortex and wear down veutro cortex but keep it continuous; form " U " shape groove, slotting and grind holostrome vertebral plate in enabling side, slowly starts C3-C7(or C6 to door-hinge side is complete) vertebral plate to be to expand narrow canalis spinalis.The adhesion of careful separation spinal dura mater and ligamenta flava or vertebral plate, carefully stops blooding.Appropriate length titanium plate (I type) is laid in enabling place, titanium plate can carry out moulding according to vertebral plate form, after preliminarily stabilised, with diameter 2.5mm abrasive drilling in lateral mass and vertebral plate sidetracking hole, 1 piece, the length 8mm screw in lateral mass side, length 6mm screw 1-2 piece of row titanium plate in vertebral plate side is fixed.
Double door operation method: ventricumbent position after patient's general anesthesia; get standard neck way of escape otch; appear C3-C7 vertebral plate, spinous process, lateral mass; according to narrow segment; C3-C7(or C6) as decompression sections; the lateral mass in the left and right sides and vertebral plate intersection; spherical abrasive drilling thoroughly removes dorsal part cortex and wear down veutro cortex but keep it continuous; form " U " shape groove, sting except spinous process, grind holostrome vertebral plate in vertebral plate central slot, both sides slowly strut C3-C7(or C6 to the left and right) vertebral plate to be expanding narrow canalis spinalis.The adhesion of careful separation spinal dura mater and ligamenta flava or vertebral plate, carefully stops blooding.Lay appropriate length titanium plate (II type) in enabling place, titanium plate can carry out moulding according to vertebral plate form, after preliminarily stabilised, holes in two vertebral plates with diameter 2.5mm abrasive drilling, fixes with length 4mm or 6mm screw 1-2 piece of row titanium plate.
Advantage of the present invention: simplicity of design, easy to use, fixed.
1. gripper shoe is titanium alloy, has good biocompatibility, is convenient to moulding as required.Shape is indentation, can ensure that titanium plate can not be absorbed in canalis spinalis.
2. tortuous depression director 12mm, 14mm, can determine the width of enabling, makes it can not be too small, also can not be excessive.Curved, canalis spinalis can be expanded to greatest extent, can not spinal cord be oppressed.
3. transfer director 3mm, can ensure that titanium plate can not charge into canalis spinalis, compressing spinal cord.Because lamina of cervical vertebra (except C1) C4, C5 are the thinnest, be 3.0mm.
4. turning point is acute angle, and wedge angle can insert the spongy bone at vertebral plate and lateral mass place, reaches at once stable.And it is very easy to be firm to lay titanium plate, can not charge into canalis spinalis,
5. screw diameter 3.5mm is self tapping cancellous bone screw, fixed.

Claims (3)

1. a posterior cervical opens the door and supports fixing head, it is characterized in that: the bar shaped titanium plate comprising the complications of a shaping, bar shaped titanium plate comprises the fixing head of the left and right sides and is connected to middle brace table, brace table has the end face keeping the side, two, left and right of door opening state for supporting cervical vertebra and be connected to centre, brace table end face is the arc surface to lower recess, two angles between side and end face are acute angle, the fixing head of both sides is provided with nail, and in nail, mounting screw is to be fixed on cervical vertebra upward-acting door place;
The fixing head of every side has one or two nail, and the nail number of both sides is identical or different;
When performing the operation for single open-door, the fixing head being fixed on vertebral plate side has two nail, and the fixing head being fixed on lateral mass side has a nail;
When performing the operation for double door, the fixing head of both sides is all have two nail.
2. posterior cervical according to claim 1 opens the door and supports fixing head, it is characterized in that: the side, two, left and right of brace table is outward-dipping, forms the structure that top width is greater than root width.
3. posterior cervical according to claim 1 opens the door and supports fixing head, it is characterized in that: bar shaped titanium plate thickness 1mm, width 6mm, brace table end face recess length 12mm-14mm, brace table side length 3mm, screw diameter 3.5mm, length 4mm, 6mm or 8mm are self tapping cancellous bone screw.
CN201410013741.3A 2014-01-13 2014-01-13 Posterior cervical opens the door and supports fixing head Active CN103845107B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107280753A (en) * 2017-07-28 2017-10-24 兰州西脉记忆合金股份有限公司 A kind of calcaneum ladder steel plate

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105769310A (en) * 2016-03-30 2016-07-20 山东省立医院 Vertebral plate fixing clamp for posterior bilateral expansive laminoplasty of cervical vertebra
CN106963467A (en) * 2017-03-27 2017-07-21 遵义医学院附属医院 It is a kind of partly to be opened the door adjustable titanium plate inner fixing device for cervical vertebra
CN107550555A (en) * 2017-09-29 2018-01-09 赵斌 A kind of minimally invasive Laminoplasty fixing device of double door
CN112545822B (en) * 2019-06-25 2022-06-10 河南省洛阳正骨医院（河南省骨科医院） Auxiliary instrument for stretching shoulders to expand operation visual field
CN110338895A (en) * 2019-08-20 2019-10-18 北京大学第三医院（北京大学第三临床医学院） Support, fixed, fusing device between a kind of vertebral plate

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CN101584601A (en) * 2009-06-11 2009-11-25 陈哲 Bone fracture plate formed by a vertebral plate
CN102247207A (en) * 2011-04-07 2011-11-23 雷伟 Universal omni-posterior-double lateral mass bridging board for cervical vertebra
CN202313687U (en) * 2011-11-21 2012-07-11 王欢 Support body for posterior spinal open door laminoplasty
CN203169287U (en) * 2013-04-08 2013-09-04 戴维享 Cervical spinal canal forming support steel plate

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US7645294B2 (en) * 2004-03-31 2010-01-12 Depuy Spine, Inc. Head-to-head connector spinal fixation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101584601A (en) * 2009-06-11 2009-11-25 陈哲 Bone fracture plate formed by a vertebral plate
CN102247207A (en) * 2011-04-07 2011-11-23 雷伟 Universal omni-posterior-double lateral mass bridging board for cervical vertebra
CN202313687U (en) * 2011-11-21 2012-07-11 王欢 Support body for posterior spinal open door laminoplasty
CN203169287U (en) * 2013-04-08 2013-09-04 戴维享 Cervical spinal canal forming support steel plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107280753A (en) * 2017-07-28 2017-10-24 兰州西脉记忆合金股份有限公司 A kind of calcaneum ladder steel plate
CN107280753B (en) * 2017-07-28 2020-12-08 兰州西脉记忆合金股份有限公司 Calcaneus ladder steel plate

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Effective date of registration: 20170109

Address after: 250000 Shandong, Lixia District, Ji''nan Province Cultural Road West, No. 107

Patentee after: Qilu Hospital, Shandong Univ.

Address before: Lixia District, Shandong city of Ji''nan Province Cultural Road 250014 No. 44 Building No. 11 West Village

Patentee before: Hou Yong