CN109199560A - A kind of bracket strutting sustainable bone grafting - Google Patents
A kind of bracket strutting sustainable bone grafting Download PDFInfo
- Publication number
- CN109199560A CN109199560A CN201811343189.9A CN201811343189A CN109199560A CN 109199560 A CN109199560 A CN 109199560A CN 201811343189 A CN201811343189 A CN 201811343189A CN 109199560 A CN109199560 A CN 109199560A
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- rivet
- rocking bar
- sliding shoe
- bone grafting
- bracket
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 122
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 10
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 229910000771 Vitallium Inorganic materials 0.000 claims description 4
- 239000000602 vitallium Substances 0.000 claims description 4
- 102000007350 Bone Morphogenetic Proteins Human genes 0.000 claims description 3
- 108010007726 Bone Morphogenetic Proteins Proteins 0.000 claims description 3
- 229940112869 bone morphogenetic protein Drugs 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 210000000130 stem cell Anatomy 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002324 minimally invasive surgery Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 208000010392 Bone Fractures Diseases 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000001356 surgical procedure Methods 0.000 description 5
- 206010010214 Compression fracture Diseases 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 210000004446 longitudinal ligament Anatomy 0.000 description 4
- 230000035876 healing Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 206010041569 spinal fracture Diseases 0.000 description 3
- 238000012274 Preoperative evaluation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000002639 bone cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010023509 Kyphosis Diseases 0.000 description 1
- 208000001132 Osteoporosis Diseases 0.000 description 1
- 206010061363 Skeletal injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000002188 osteogenic effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
-
- 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
- A61B17/7061—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant for stabilising vertebrae or discs by improving the condition of their tissues, e.g. using implanted medication or fluid exchange
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
-
- 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
- A61B17/7094—Solid vertebral fillers; devices for inserting such fillers
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/025—Joint distractors
- A61B2017/0256—Joint distractors for the spine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (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)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses the brackets that one kind can strut sustainable bone grafting, it include center bolt, push plate, sliding shoe, nut and connection component, the screw thread to match with nut is equipped in one end of center bolt, the other end is equipped with end socket, the first rivet hole is equipped in the inside of end socket, sliding shoe is sheathed in center bolt, the second rivet hole is equipped in the inside of sliding shoe, the push plate is equipped with multiple, carriage is respectively equipped in multiple push plates, multiple push plates form the peripheral direction that symmetry status is distributed in center bolt, wherein connection component is by carriage respectively with first, the connection of second rivet hole, nut is bolted in center bolt, sliding shoe can move under the action of nut along center bolt, push plate is driven to strut centered on center bolt or inwardly close up outward by sliding shoe and connection component.It realizes the function of opening and collapse using lever principle using bone bracket of the present invention, the requirement in medical Minimally Invasive Surgery can be met.
Description
Technical field
The present invention relates to the field of medical instrument technology, are related to repairing for bone injury especially vertebral fracture and bone fusion
Apparatus for coating, specifically a kind of bracket that can strut sustainable bone grafting.
Background technique
For vertebral fracture, at present to the processing of vertebral fracture there are many mode: including first is that conservative therapy, to centrum
Compress the patient less than 1/3, absolute bed rest, the out-of-bed activity after union；Second is that Percutaneous kyplasty, main
It is used for centrum rear crack-free, the sufferers of osteoporosis face at advanced age；Third is that open reduction internal fixation by nail-stick system art.And use hand
Art is most commonly seen mode, surgical procedure are as follows: is respectively implanted pedicle screw in the tail end for hurting vertebra, is then connected using vertical
Bar respectively connects the screws of two sides, is strutted the screw cephalocanudad of sick vertebra two sides end to end using dilator, to restore centrum
Height, correct kyphosis deformity.Under normal circumstances, there are anterior longitudinal ligament and posterior longitudinal ligament attachment in centrum front and back respectively, and two tough
Band for continuous ligament and is attached to all centrum front and rear edges from head end to tail end.And there is fibre between two adjacent centrums
Dimension ring and disc tissue, fibrous ring are attached to the upper lower edge on centrum periphery.Strutting the mechanism for allowing vertebral height to restore is mainly:
Will be when side screw be strutted to both ends end to end, anterior longitudinal ligament, posterior longitudinal ligament and fibrous ring are also stretched, and utilize and squeeze and the power of traction
It measures the vertebral bone block reset of compression.In addition, due to being mainly cancellous bone in centrum, after vertebral compression fracture, cancellous bone also by
It squeezes, so being often hollow state inside centrum, with the progress of the state of an illness, by scar after strutting centrum recovery vertebral height
Trace tissue filling affects the intensity of centrum.After 1 year after patient takes out nail-stick system, since not enough having for intensity is sent out again
The risk of raw fracture.
The fracture that centrum has wedge shape change and vertebral height to have loss is treated through minimal invasive techniques means, to be restored and be tieed up in art
The form and height of centrum are held, vertebra sequence is rebuild.There are such as SpineJack, Expansible centrum support frame (EVS), centrum at present
The internal fixation devices such as interior inflatable column (I-VEP) are realized.SpineJack, that is, backbone jack is dilator in a kind of centrum,
Using being to strut inside pedicle channel to centrum by upper and lower two push plates, the centrum of compression is made to restore its form and height
Degree, then in perfusion bone cement with fixation.But when strutting, push plate and bone tissue contact surface are narrow for it, cannot provide more uniform
Distraction reduction strength；This support arm itself provides the gap of bone grafting without design, needs to fix by bone cement.And it can expand
Opening centrum support (EVS) is a kind of distracted centrum support of more valves made by memorial alloy performance, and biggest advantage exists
External force pushing effect is not needed after in implantation centrum makes stent-expansion, but bracket voluntarily complex, expansion and props up under body temperature
Support fractured vertebral body, thus its complex degree can because Temperature changing is to not easy to control, though the hollow design in addition used can support
Mutually block pressure with Intrapyramidal cancellous bone when opening to be engaged, has preferable contact surface, but cannot equally provide the support force compared with homogeneous
Amount.May expand column (I-VEP) in centrum is implanted into centrum by pedicle channel, by the opening up and down of head end to compression
Centrum be supported, and inject cement reaction.But its opening angle is vulnerable to depth limit in insertion centrum, reset effect
Dissatisfied, furthermore its head end can generate unevenness and biggish because bone tissue stress interface is smaller in centrum to upper and lower open
Stress, the support force provided are ineffective.
In addition, spinal surgery is normal since the stability of backbone is for maintaining the normal function of backbone to be also very important
The stablizing effect of medium-long term is obtained using bone graft fusion.Spinal fusion may be defined as between certain two or more spinal segments
Shape osteogenic connects after bone grafting operation.For interbody fusion, substantially operating procedure is divided into first is that intervertenral space appears；Two
It is the processing of cartilage endplate above and below the processing of intervertenral space, especially intervertenral space；Third is that bone grafting merges；Fourth is that intervertebral pressurizes.Wherein
The Invasive lumbar fusion device (Cage) for including broken bone block of bone grafting fusion multi-purpose hollow square light-permeable general at present.Interbody fusion can
To restore disc height and backbone sequence, while intervertebral longitudinal bracing is provided, improves interior fixed stability, it is often more important that
Higher fusion rate of bone graft can be obtained.
Therefore, it is necessary to using a kind of structure it is simple, it is easy for operation, can by minimally invasive channel be implanted into centrum in or vertebra
Uniform mechanical support is provided for symphysis and bone fusion between body, and bone grafting can be carried out, reduces wound, vertebra healing is hurt in raising
Or the mechanical strength of intervertebral fusion, improve the bracket of operative effect.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to background technique, it is simple to provide a kind of structure, behaviour
Facilitate, the implantation of minimal invasion channel can strut uniformly, can bone grafting, highly-safe bone bracket, to meet in the minimally invasive hand of medical treatment
Requirement in art can simplify surgical procedure and improve operative effect, specifically a kind of bracket that can strut sustainable bone grafting.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows: one kind can strut the branch of sustainable bone grafting
Frame includes center bolt, push plate, sliding shoe, nut and connection component, is equipped with and the spiral shell in one end of the center bolt
The matched screw thread of parent phase, the other end are equipped with end socket, are equipped with multiple groups in the inside of the end socket and are mutually perpendicular to the first rivet hole, in institute
It states and is equipped with circular hole in sliding shoe, the sliding shoe is sheathed in the center bolt by circular hole, in the inside of the sliding shoe
Equipped with the second rivet hole to match with the first rivet hole, the push plate be equipped with it is multiple, sliding is respectively equipped in multiple push plates
Device, multiple push plates form the peripheral direction that symmetry status is distributed in the center bolt, wherein the connection component passes through cunning
Dynamic device is connect with the first rivet hole and the second rivet hole respectively, and the nut is bolted in center bolt by screw thread, described
Sliding shoe can axially be moved along the center bolt, be moved axially by the sliding shoe, by connection group under the action of nut
Part drives the push plate to strut centered on center bolt or inwardly close up outward.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein first rivet hole is set
There are two groups, is equipped with two groups of second rivet holes to match with the first rivet hole in the inside of the sliding shoe, the push plate is equipped with
Four, carriage is respectively equipped in four push plates, four push plates form symmetry status and are distributed in the outer of the center bolt
It places down and left and right four direction.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the carriage is point
The multiple support slippers composition not being set in each push plate medial surface, and be equipped with and the connection group in the support slipper
The chute hole that part matches, the chute hole can be free to slide for the connection component.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the support slipper is equipped with
Four, four support slippers are divided into two groups and are arranged in parallel along the length direction of the push plate, the quantity of the chute hole and institute
The quantity for stating support slipper is identical, and four chute holes are along longitudinal direction through in the support slipper.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the connection component includes
There are left rivet, left rocking bar, left rocking bar rivet, left rocker rivet, right rocking bar rivet, right rocking bar and sliding shoe rivet, the left side
There are four rivet, left rocking bar, left rocking bar rivet, left rocker rivet, right rocking bar rivet, right rocking bar and sliding shoe rivet are all provided with；
Wherein the left rocking bar and right rocking bar are that structure is identical, and is distributed in the push plate medial surface in symmetry status, and described
The middle-end of left rocking bar and right rocking bar is equipped with positioning groove, and is equipped with a rivet hole in one end, and the other end sets that there are two rivetings
Nail hole；Four left rivets and four sliding shoe rivets are divided into two groups, and be respectively arranged at corresponding first rivet hole and
In second rivet hole, the left rocking bar passes through band by the one end and left rivet interlacement, the right rocking bar for having a rivet hole
There are one end and the sliding shoe rivet interlacement of a rivet hole；The left rocking bar and the right rocking bar other end pass through a corresponding left side respectively and shake
Riveting pin and right rocking bar rivet pass through one of rivet hole and intersect connection；Another rivet hole of same side passes through left and right
Rocking bar rivet passes through the positioning groove and is connected to a fixed and forms rotation fulcrum；The wherein left rocking bar rivet and right rocking bar riveting
Nail is inserted in respectively in the chute hole in corresponding push plate medial surface, and can be free to slide in the sliding slot；The center bolt pushes away
Arm is constituted by the corresponding rocking bar of rivet interlacement between plate and connection component, forms centered on center bolt vertically and horizontally four
Three layers of linkage structure that a direction struts or closes up.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein in the outer of the sliding shoe
Side is set sets that there are two the limit card block extended to sliding Block direction, the limiting cards there are two baltimore groove in the nut
Block matches with baltimore groove, and the nut is inserted into or is detached from the baltimore groove by the limit card block, realizes the spiral shell
It is female with being fixedly connected between sliding shoe or discrete state.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein being equipped in the push plate
Multiple hollow bone grafting slots increase contact area by the bone grafting slot so that bone-grafting material filling is grown into bone tissue,
Promote symphysis.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the bone grafting slot is set as
Three, three bone grafting slots are distributed in the middle part and both ends of the push plate respectively, wherein the bone grafting slot for being located at middle part is set as bar shaped
Through-hole structure, the bone grafting slot positioned at both ends is distributed in symmetry status, and is set as special-shaped pore structure.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the center bolt, pushing away
Medical titanium alloy or vitallium material can be selected in plate, sliding shoe, nut and connection component or other materials constitutes the bone
Bracket, the bone bracket using when can impregnate or inject bone morphogenetic protein, stem cell or promote bone grafting grow cell
The factor.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, in the inside of the center bolt
Along its end socket direction be equipped with axially extending bore, by the axially extending bore into center bolt bone grafting, in the side of the center bolt
Face is additionally provided with multiple increasing hoppers communicated with the axially extending bore.
The bracket of sustainable bone grafting, compared with prior art, its advantages can be strutted using one kind of the present invention
It is: first by abundant preoperative evaluation, excludes surgical contraindication, determine bracket model needed for patient；In the course of surgery, it builds
It stands percutaneous pedicle channel and reaches fractured vertebral body central interior, be implanted into not distracted bone bracket through channel, be allowed to reach centrum
Behind interior appropriate location, then by rotating nuts bone bracket is strutted, and the centrum of compression fracture is made to restore height and form, support
Bone grafting can be carried out after opening in bracket and realizes the bone bracket and the permanent bone fusion of centrum.It is embodied in following side
Face:
1, it is implanted by minimal invasion channel, can be realized microtrauma to solve patient's illness, bone bracket is by minimally invasive logical
It can uniformly be strutted at four sides vertically and horizontally after in road implantation centrum, increase the contact surface of rack surface and osseous tissue interface, solve
Existing internal fixation device in the application it is existing cannot provide uniformly strut, rack surface and osseous tissue interface's stress is excessive asks
Topic；
2, the eventual stabilities fractured essentially consist in realization bony union, can be in center bolt and between push plate in implantation centrum
Bone grafting is carried out, is created conditions to hurt vertebra healing, is realized hurt the healing of vertebra normal morphology to greatest extent；
3, the bone bracket uses screw thread Principles of Regulation, realizes that four direction push plate struts in spiral course, can be to compression vertebra
Body realizes the reduction of the fracture and provides uniform support force, and adjusting is easy to operate, and tool is simple；
4, the bone bracket selects medical titanium alloy or vitallium material is made, it can be achieved that centrum inner support, bone grafting, provide
Immediate postoperative stability forms permanent bone fusion with centrum and takes into account long-time stability.
In conclusion the bracket of sustainable bone grafting can be strutted using one kind of the present invention, it is ingenious to utilize lever principle,
In very small space realize open and collapse function, the bone bracket have it is compact-sized, can satisfy medical treatment it is minimally invasive
Working efficiency can be greatly improved in requirement in operation, be suitable for promoting and applying.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the center bolt structural schematic diagram in Fig. 1；
Fig. 3 is the plate pushing structure schematic diagram in Fig. 1；
Fig. 4 is the left rocking bar and right rocker structure schematic diagram in Fig. 1；
Fig. 5 is the sliding shoe structural schematic diagram in Fig. 1；
Fig. 6 is the nut structure diagram in Fig. 1；
Fig. 7 is structural schematic diagram when closing up in bracket use process of the present invention；
Fig. 8 is structural schematic diagram when strutting in bracket use process of the present invention；
Fig. 9 is flow diagram of the bracket of the present invention in application.
As shown in the figure: 1- center bolt, 101- screw thread, 102- end socket, the first rivet hole of 103-, 104- increase hopper, the left side 2-
The left rocking bar rivet of the left rocking bar of rivet, 3-, 4-, 5- left rocker rivet, 6- push plate, 601- support slipper, 602- chute hole, 603-
The right rocking bar rivet of bone grafting slot, 7-, the right rocking bar of 8-, 9- sliding shoe, 901- circular hole, the second rivet hole of 902-, 903- baltimore groove, 10-
Sliding shoe rivet, 11- nut, 1101- limit card block, 12- rivet hole, 13- positioning groove.
Specific embodiment
As shown in Figures 1 to 6, one kind of the present invention can strut the bracket of sustainable bone grafting, include center bolt
1, push plate 6, sliding shoe 9, nut 11 and connection component are equipped in one end of the center bolt 1 and match with the nut 11
Screw thread 101, the other end be equipped with end socket 102, the inside of the end socket 102 be equipped with multiple groups be mutually perpendicular to the first rivet hole 103,
Circular hole 901 is equipped in the sliding shoe 9, the sliding shoe 9 is sheathed in the center bolt 1 by circular hole 901, described
The inside of sliding shoe 9 is equipped with the second rivet hole 902 for matching with the first rivet hole 103, the push plate 6 be equipped with it is multiple, more
Carriage is respectively equipped in a push plate 6, multiple push plates 6 form the peripheral direction that symmetry status is distributed in the center bolt 1,
Wherein the connection component is connect with the first rivet hole 103 and the second rivet hole 902 respectively by carriage, the nut 11
It is bolted in center bolt 1 by screw thread 101, the sliding shoe 9, can be along 1 axis of center bolt under the action of nut 11
To movement, is moved axially by the sliding shoe 9, drive the push plate 6 to support outward centered on center bolt 1 by connection component
It opens or inwardly closes up.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein first rivet hole 103
Equipped with two groups, two groups of second rivet holes 902 to match with the first rivet hole 103 are equipped in the inside of the sliding shoe 9, it is described
There are four push plate 6 is set, carriage is respectively equipped in four push plates 6, four push plates 6 form symmetry status and are distributed in described
The peripheral upper and lower and left and right four direction of heart screw rod 1.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the carriage is point
The multiple support slippers 601 not being set in each 6 medial surface of push plate form, and are equipped with and institute in the support slipper 601
The chute hole 602 that connection component matches is stated, the chute hole 602 can be free to slide for the connection component.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the support slipper 601 is set
There are four, four support slippers 601 are divided to for two groups and are arranged in parallel along the length direction of the push plate 6, the chute hole 602
Quantity is identical as the quantity of the support slipper 601, and four chute holes 602 are along longitudinal direction through in the support slipper 601.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the connection component includes
There are left rivet 2, left rocking bar 3, left rocking bar rivet 4, left rocker rivet 5, right rocking bar rivet 7, right rocking bar 8 and sliding shoe rivet
10, the left rivet 2, left rocking bar 3, left rocking bar rivet 4, left rocker rivet 5, right rocking bar rivet 7, right rocking bar 8 and sliding shoe
There are four rivet 10 is all provided with；Wherein the left rocking bar 3 and right rocking bar 8 are that structure is identical, and is distributed in described push away in symmetry status
In 6 medial surface of plate, and it is equipped with positioning groove 13 in the middle-end of the left rocking bar 3 and right rocking bar 8, and be equipped with one in one end
Rivet hole 12, the other end are set there are two rivet hole 12；Four left rivets 2 and four sliding shoe rivets 10 are divided into two groups,
And be respectively arranged in corresponding first rivet hole 103 and the second rivet hole 902, the left rocking bar 3 is by having a rivet
The one end in hole 12 is connect with left rivet 2, and the right rocking bar 8 is connected by one end with a rivet hole 12 with sliding shoe rivet 10
It connects；The left rocking bar 3 and 8 other end of right rocking bar pass through corresponding left rocking bar rivet 4 respectively and right rocking bar rivet 7 passes through one
A rivet hole 12 intersects connection；Another rivet hole 12 of same side is recessed across the positioning by left rocker rivet 5
Slot 13 is connected to a fixed and forms rotation fulcrum；Wherein the left rocking bar rivet 4 and right rocking bar rivet 7 are inserted in corresponding push plate respectively
In chute hole 602 in 6 medial surfaces, and can be free to slide in the sliding slot 602；The center bolt 1, push plate 6 and connection
Arm is constituted by the corresponding rocking bar of rivet interlacement between component, forms centered on center bolt 1 four direction vertically and horizontally
The three layers of linkage structure for strutting or closing up.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein in the outer of the sliding shoe 9
Side, which is set, to be set there are two baltimore groove 903 in the nut 11 there are two the limit card block 1101 extended to 9 direction of sliding shoe,
The limit card block 1101 matches with baltimore groove 903, and the nut 11 is inserted into or is detached from by the limit card block 1101
In the baltimore groove 903, being fixedly connected between the nut 11 and sliding shoe 9 or discrete state are realized.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein being equipped in the push plate 6
Multiple hollow bone grafting slots 603, by the bone grafting slot 603 so that bone-grafting material filling is grown into bone tissue, increase is connect
Contacting surface product, promotes symphysis.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the bone grafting slot 603 is arranged
It is three, three bone grafting slots 603 are distributed in the middle part and both ends of the push plate 6 respectively, wherein the bone grafting slot 603 for being located at middle part is set
It is set to strip through-hole structure, the bone grafting slot 603 positioned at both ends is distributed in symmetry status, and is set as special-shaped pore structure.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, wherein the center bolt 1, pushing away
Medical titanium alloy or vitallium material can be selected in plate 6, sliding shoe 9, nut 11 and connection component or other materials constitutes institute
State bone bracket, the bone bracket using when can impregnate or inject bone morphogenetic protein, stem cell or bone grafting is promoted to grow
Cell factor.
Further, one kind of the present invention can strut the bracket of sustainable bone grafting, in the inside of the center bolt 1
Along its 102 direction of end socket be equipped with axially extending bore, by the axially extending bore into center bolt 1 bone grafting, in the center bolt 1
Side be additionally provided with multiple increasing hoppers 104 communicated with the axially extending bore.
As shown in Figure 7 to 9, in actual application, sustainable bone grafting can be strutted using one kind of the present invention
Bracket, due to the inside of the center bolt 1 along its 102 direction of end socket be equipped with axially extending bore (not marked in figure), lead to
Axially extending bore bone grafting into center bolt 1 is crossed, is additionally provided with the multiple and axially extending bore in the side of the center bolt 1
The increasing hopper 104 communicated, by the axially extending bore into center bolt 1 bone grafting, due to the increasing hopper 104 and the push plate
Bone grafting slot 603 in 6 communicates, and the bone grafting injected can pass through set plant to surrounding exudation by bone grafting slot 603
Bone slot 603 can increase surface area, contact area, and bone tissue can be grown into bracket, to realize the bone bracket and centrum
Permanent bone fusion.Its concrete operating principle are as follows: in opening procedure, as shown in arrow direction in Fig. 7, first pass through rotating nut
11, so that the opposite center bolt 1 of the nut 11 is made rotating motion, matches due to being equipped in center bolt 1 with nut 11
Screw thread 101, in the effect of screw thread 101, nut 11 drives sliding shoe 9 to slide on center bolt 1, due to having four on sliding shoe 9
A right rocking bar 8 is fixed on sliding shoe 9, and when sliding shoe 9 axially moves on center bolt 1, sliding shoe 9 drives the right side to shake
Bar 8 moves downward together, and due to the left rocking bar 3 and 8 other end of right rocking bar passes through corresponding left rocking bar rivet 4 respectively and the right side is shaken
Riveting pin 7 passes through one of rivet hole 12 and intersects connection；Another rivet hole 12 of same side passes through left rocker riveting
Nail 5 passes through the positioning groove 13 and is connected to a fixed and forms rotation fulcrum；The wherein left rocking bar rivet 4 and right rocking bar rivet
7 are inserted in respectively in the chute hole 602 in corresponding 6 medial surface of push plate, and can be free to slide in the sliding slot 602；The center
Arm is constituted by the corresponding rocking bar of rivet interlacement between screw rod 1, push plate 6 and connection component, formed centered on center bolt 1 to
Three layers of linkage structure that four direction struts or closes up up and down.In this way under the action of right rocking bar 8 and left rocking bar 3, the right side is shaken
Bar 8 can do similar scissor motion with left rocking bar 3, due to secured respectively on left rocking bar 3 and right rocking bar 8 left rocking bar rivet 4 and
Right rocking bar rivet 7 is held corresponding push plate 6 by the left rocking bar rivet 4 and right rocking bar rivet 7 and is moved out, thus pushing away
Plate 6 opens, and finally reaches four sides and opens purpose.And movement is recycled with open movement on the contrary, by reversion nut 11, in Fig. 8
Shown in arrow direction, due to being set on nut 11 there are two matching limit card block 1101 with baltimore groove 903, it can pass through in this way
Limit card block 1101 pulls back sliding shoe 9, so that reaching makes 8 return of left rocking bar 3 and right rocking bar.
Specific operation process for compression fracture is as shown in figure 9, first have to exclude hand by sufficient preoperative evaluation
Art contraindication determines bracket model needed for patient；Then in the course of surgery, establish percutaneous pedicle channel and reach fracture vertebra
Body central interior is implanted into not distracted bone bracket through channel, is allowed to reach in centrum behind appropriate location, then make by rotating nuts
Bone bracket struts, and the centrum of compression fracture is made to restore height and form, bone grafting pipe is finally imported, by bone grafting pipe to strutting
After can be implanted into particulate cancellous bone in bracket, bone grafting operation is carried out, to realize bracket and the permanent bone fusion of centrum.
In conclusion using bone bracket of the present invention, it is ingenious to utilize lever principle, it is realized in very small space
Open and collapse function, the bone bracket have it is compact-sized, can satisfy the requirement in medical Minimally Invasive Surgery, can greatly mention
High working efficiency is suitable for promoting and applying.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all include within protection scope of the present invention.
Claims (10)
1. the bracket that one kind can strut sustainable bone grafting, it is characterised in that: include center bolt (1), push plate (6), sliding shoe
(9), nut (11) and connection component are equipped with the screw thread to match with the nut (11) in one end of the center bolt (1)
(101), the other end is equipped with end socket (102), is equipped with multiple groups in the inside of the end socket (102) and is mutually perpendicular to the first rivet hole
(103), circular hole (901) are equipped in the sliding shoe (9), the sliding shoe (9) is sheathed on the center by circular hole (901)
In screw rod (1), the second rivet hole (902) to match with the first rivet hole (103) is equipped in the inside of the sliding shoe (9),
The push plate (6) is equipped with multiple, is respectively equipped with carriage in multiple push plates (6), multiple push plates (6) form symmetry status point
Be distributed in the peripheral direction of the center bolt (1), wherein the connection component by carriage respectively with the first rivet hole
(103) it is connected with the second rivet hole (902), the nut (11) is bolted in center bolt (1) by screw thread (101), described
Sliding shoe (9) can move axially under the action of nut (11) along the center bolt (1), axial by the sliding shoe (9)
It is mobile, drive the push plate (6) to strut centered on center bolt (1) or inwardly close up outward by connection component.
2. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: first rivet hole
(103) two groups are equipped with, is equipped with two groups of second rivets to match with the first rivet hole (103) in the inside of the sliding shoe (9)
Hole (902) there are four the push plate (6) sets, is respectively equipped with carriage in four push plates (6), and four push plates (6) are formed pair
Title state is distributed in the periphery of the center bolt (1) or more and left and right four direction.
3. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: the carriage is
Multiple support slippers (601) composition being respectively arranged in each push plate (6) medial surface, and in the support slipper (601)
Equipped with the chute hole (602) to match with the connection component, the chute hole (602) can supply the connection component free skating
It is dynamic.
4. the bracket that one kind according to claim 3 can strut sustainable bone grafting, it is characterised in that: the support slipper
(601) there are four setting, four support slippers (601) are divided into two groups and are arranged in parallel along the length direction of the push plate (6), described
The quantity of chute hole (602) is identical as the quantity of the support slipper (601), and four chute holes (602) are along longitudinal direction through institute
It states in support slipper (601).
5. the bracket that one kind according to claim 3 can strut sustainable bone grafting, it is characterised in that: the connection component packet
Left rivet (2), left rocking bar (3), left rocking bar rivet (4), left rocker rivet (5), right rocking bar rivet (7), right rocking bar (8) are included
With sliding shoe rivet (10), the left rivet (2), left rocking bar (3), left rocking bar rivet (4), left rocker rivet (5), right rocking bar
There are four rivet (7), right rocking bar (8) and sliding shoe rivet (10) are all provided with；Wherein the left rocking bar (3) and right rocking bar (8) are knot
Structure is identical, and is distributed in the push plate (6) medial surface in symmetry status, and in the left rocking bar (3) and right rocking bar (8)
End is equipped with positioning groove (13), and is equipped with a rivet hole (12) in one end, and the other end is set there are two rivet hole (12)；Institute
It states four left rivets (2) and four sliding shoe rivets (10) is divided into two groups, and be respectively arranged at corresponding first rivet hole
(103) and in the second rivet hole (902), the left rocking bar (3) passes through one end and left rivet (2) with a rivet hole (12)
Connection, the right rocking bar (8) are connect by one end with a rivet hole (12) with sliding shoe rivet (10)；The left rocking bar
(3) and right rocking bar (8) other end passes through corresponding left rocking bar rivet (4) respectively and right rocking bar rivet (7) passes through one of riveting
Nail hole (12) intersects connection；Another rivet hole (12) of same side passes through the positioning by left rocker rivet (5)
Groove (13) is connected to a fixed and forms rotation fulcrum；Wherein the left rocking bar rivet (4) and right rocking bar rivet (7) are inserted in respectively
In chute hole (602) in corresponding push plate (6) medial surface, and can be free to slide in the sliding slot (602)；The center bolt
(1), arm is constituted by the corresponding rocking bar of rivet interlacement between push plate (6) and connection component, is formed centered on center bolt (1)
Three layers of linkage structure that four direction struts or closes up vertically and horizontally.
6. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: in the sliding shoe
(9) lateral surface is set there are two baltimore groove (903), sets that there are two extend to sliding shoe (9) direction in the nut (11)
Limit card block (1101), the limit card block (1101) match with baltimore groove (903), and the nut (11) passes through the limit
Fixture block (1101) is inserted into or is detached from the baltimore groove (903), realizes the fixation between the nut (11) and sliding shoe (9)
Connection or discrete state.
7. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: in the push plate (6)
In be equipped with multiple hollow bone grafting slots (603), by the bone grafting slot (603) for bone-grafting material fill it is long with bone tissue
Enter, increase contact area, promotes symphysis.
8. the bracket that one kind according to claim 7 can strut sustainable bone grafting, it is characterised in that: the bone grafting slot
(603) three are set as, three bone grafting slots (603) are distributed in the middle part and both ends of the push plate (6) respectively, wherein being located at middle part
Bone grafting slot (603) be set as strip through-hole structure, the bone grafting slot (603) positioned at both ends is distributed in symmetry status, and is set as
Special-shaped pore structure.
9. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: the center bolt
(1), push plate (6), sliding shoe (9), nut (11) and connection component can be selected medical titanium alloy or vitallium material or its
His material constitutes the bone bracket, the bone bracket using when can impregnate or inject bone morphogenetic protein, stem cell or rush
The cell factor grown into bone grafting.
10. the bracket that one kind according to claim 1 can strut sustainable bone grafting, it is characterised in that: in the center spiral shell
The inside of bar (1) is equipped with axially extending bore along its end socket (102) direction, by the axially extending bore to center bolt (1) interior bone grafting,
Multiple increasing hoppers (104) communicated with the axially extending bore are additionally provided in the side of the center bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343189.9A CN109199560B (en) | 2018-11-13 | 2018-11-13 | Support capable of being spread and supporting bone grafting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343189.9A CN109199560B (en) | 2018-11-13 | 2018-11-13 | Support capable of being spread and supporting bone grafting |
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| CN109199560A true CN109199560A (en) | 2019-01-15 |
| CN109199560B CN109199560B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811343189.9A Active CN109199560B (en) | 2018-11-13 | 2018-11-13 | Support capable of being spread and supporting bone grafting |
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| CN111839830A (en) * | 2020-07-23 | 2020-10-30 | 山东第一医科大学附属省立医院(山东省立医院) | Fixable intervertebral fusion cage under self-guiding distraction mirror |
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