CN110478091A - A kind of lumbar intervertebral fusion device and its application - Google Patents
A kind of lumbar intervertebral fusion device and its application Download PDFInfo
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- CN110478091A CN110478091A CN201810926471.3A CN201810926471A CN110478091A CN 110478091 A CN110478091 A CN 110478091A CN 201810926471 A CN201810926471 A CN 201810926471A CN 110478091 A CN110478091 A CN 110478091A
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- fusion device
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- resistance
- device ontology
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Classifications
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- 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
Abstract
The invention discloses a kind of lumbar intervertebral fusion device and its applications, including fusion device ontology, the left end of fusion device ontology is that tapering type wedge shape is implanted into end, the right part of fusion device ontology is equipped with tailgate, the center bone grafting hole of perforation is provided at the top of fusion device ontology, the facade of fusion device is provided with the side opening of perforation, fusion device ontology is partitioned into four crossbeams by center bone grafting hole and side opening, resistance to compression energy-consuming device is fixed between crossbeam, the top and bottom of fusion device ontology are equipped with anti-skid bulge, the upper and lower ends of tailgate are provided with " 8 " font screw hole, the middle part of tailgate is equipped with the after-culture bone hole penetrated through with center bone grafting hole.The Invasive lumbar fusion device uses strong column and weak beam structure, and the interbody bone fusion device without using high-intensitive metal material is the elastic module that can reach high duty metal interbody bone fusion device；The performance of the antifatigue destruction of the Invasive lumbar fusion device is more preferable；The interbody bone fusion device combines spondylo screws, and limitation lumber ertebral disc axial torsion movement is to avoid Invasive lumbar fusion device fragmentation.
Description
Technical field
The present invention relates to a kind of field of medical technology, and in particular to a kind of lumbar intervertebral fusion device and its application.
Background technique
Nineteen forty-four, Briggs and Miligan have invented the interbody fusion of Posterior approach first.Its classical operation side
Formula is that broken bone block or autologous ilium are implanted between centrum to reach stable fusion after posterior decompression.Cloward uses this
Item technology achieves 85% long-term fusion rate in 321 patients.Although traditional operation method is available relatively high
Fusion rate, but there is also some problems: complication caused by infection, neurotrosis, blood loss and graft loosen.One at
The way of escape interbody fusion of function, which needs to provide front pillar powerful enough under the premise of avoiding implantation material from sinking and damage, axially to be propped up
Support.Traditional intervertebral implantation is self or homologous cancellus is obviously unable to reach above-mentioned requirements.Until Invasive lumbar fusion device (Cage)
Appearance effectively solves the problems, such as this.
The first Cage of FDA approval listing is BAK cage made of metal.It is while effectively support front pillar
Reduce bone grafting amount and achieves higher fusion rate.However, having many research shows that the elasticity modulus due to metal is much larger than
People's bone and its spiral shape causes stress to be concentrated, the sedimentation rate of BAK cage is higher.Hereafter, people's grinding for Cage
Study carefully and focuses primarily upon two aspects of material and shape.For material, metal material can be generated due to the physical characteristic of its own
Stress shielding is unfavorable for skeletonization.Then there is Carbon fiber cage, although the elasticity modulus of carbon fiber is closer to people
Bone, but it can generate small clast under alternate stress effect, lead to the inflammation of aseptic.
Homogeneous allogenic bone has self-bone grafting and osteoconductive nature as a kind of biomaterial, and theoretically elasticity modulus is closer
Soleplate and finally can by autologous bone creeping substitution, be make Invasive lumbar fusion device ideal material.Existing lot of documents report at present
The anterior intervertebral fusion device osteogenesis speed made using allogeneic femur ring and fibula ring is fast, and good biocompatibility achieves
More satisfied clinical effectiveness.But since the human Cortex's bone scale of construction limits, such as three face cortex bone intervertebrals that the current country uses
The ways of escape such as fusion device Invasive lumbar fusion device contains more spongiosa bone component, is difficult to meet the mechanical strength of support front pillar.
In conclusion the Invasive lumbar fusion device clinically used at present exists: 1, the intervertebral fusion of high-intensitive metal material
Device is easy to produce the problem of stress shielding, is unfavorable for skeletonization, and low intensive metal material Invasive lumbar fusion device support strength is insufficient,
And it is easy to happen fatigue rupture；2, Carbon fiber cage is easy to produce clast under the repeated action of power, leads to aseptic
The generation of inflammation；3, the spongiosa bone component that the autologous bone of Invasive lumbar fusion device filling contains is higher, leads to the mechanics of Invasive lumbar fusion device
Intensity is insufficient.
Summary of the invention
The present invention to solve the above-mentioned problems, proposes a kind of lumbar intervertebral fusion device and its application, content includes:
A kind of lumbar intervertebral fusion device, which is characterized in that including fusion device ontology, the left end of fusion device ontology is tapering type
Wedge shape implantation end, the right part of fusion device ontology are equipped with tailgate, the center bone grafting hole of perforation are provided at the top of fusion device ontology, is melted
The facade of clutch is provided with the side opening of perforation, center bone grafting hole and side opening and fusion device ontology is partitioned into four crossbeams, between crossbeam
It is fixed with resistance to compression energy-consuming device, the top and bottom of fusion device ontology are equipped with anti-skid bulge, and the upper and lower ends of tailgate are provided with " 8 "
Font screw hole, the middle part of tailgate are equipped with the after-culture bone hole penetrated through with center bone grafting hole.
Further, the resistance to compression energy-consuming device includes resistance to compression bolt and energy dissipation spring circle, and energy dissipation spring snare is anti-
It presses outside bolt, resistance to compression bolt is made of bolt cap and the body of rod, and the bolt cap that perforation is provided on the crossbeam of fusion device bodies top is sunk to
Hole is provided with the nut for sinking to the consistent perforation in hole site with bolt cap on the crossbeam of fusion device body bottom portion and is embedded to hole, resistance to compression bolt
Bolt cap insertion bolt cap sink in hole, the body of rod of resistance to compression bolt passes through side opening and is inserted into nut embedment hole, and the lower part of the body of rod is set
Have an external screw thread, nut driving in resistance to compression bolt lower part and resistance to compression bolt is fixed on fusion device ontology.
Further, described " 8 " the font screw hole by outside vertebra nail hole and inside extrusion screw hole mutually and and
Be symmetrically disposed on tailgate two sides up and down at, " 8 " font screw hole, the centerline axis parallel in vertebra nail hole and extrusion screw hole and with
Horizontal axis where fusion device bodies top plane is in 45 ° of angles.
Further, application of the fusion device ontology in the minimally invasive implant surgery of protrusion of lumber intervertebral disc.
The beneficial effects of the present invention are: the 1, Invasive lumbar fusion device uses strong column and weak beam structure, without using high intensity
The interbody bone fusion device of metal material is the elastic module that can reach high duty metal interbody bone fusion device, so that stress be avoided to hide
Gear problem；2, the performance of the antifatigue destruction of the Invasive lumbar fusion device is more preferable, prevents low intensive metal interbody bone fusion device from occurring tired
Labor is destroyed；3, Invasive lumbar fusion device joint vertebra nail, limitation lumber ertebral disc axial torsion movement is to avoid Invasive lumbar fusion device fragmentation.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of schematic perspective view of lumbar intervertebral fusion device；
Fig. 2 is a kind of schematic cross-sectional view of lumbar intervertebral fusion device；
Fig. 3 is a kind of overlooking structure diagram of lumbar intervertebral fusion device；
Fig. 4 is a kind of right side structural representation of lumbar intervertebral fusion device；
Fig. 5 is the assembling structure schematic diagram of the resistance to compression energy-consuming device；
Fig. 6 is the structural schematic diagram of extrusion screw as described in the examples；
Fig. 7 is the structural schematic diagram of vertebra nail as described in the examples.
In attached drawing, parts list represented by the reference numerals are as follows:
1- fusion device ontology, 2- resistance to compression bolt, 3- energy dissipation spring circle, 4- locking bolt, 5- vertebra nail, 11- crossbeam, 12-
Anti-skid bulge, 13- tailgate, 14- bolt cap sink to hole, 21- bolt cap, the 22- body of rod, 23- external screw thread, 24- nut, 41- nut, 42-
Locking screw, 51- screw cap, 52- screw rod, the center 101- bone grafting hole, 102- side opening, 131- after-culture bone hole, 132- " 8 " font spiral shell
Nail hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Refering to fig. 1 shown in -6, a kind of lumbar intervertebral fusion device, including fusion device ontology 1, the left end of fusion device ontology 1 be
Tapering type wedge shape implantation end, the right part of fusion device ontology 1 are equipped with tailgate 13, and the top of fusion device ontology 1 is provided in perforation
Heart bone grafting hole 101, the facade of fusion device are provided with the side opening of perforation, and center bone grafting hole 101 and side opening 102 divide fusion device ontology
Four crossbeams 11 out, resistance to compression energy-consuming device is fixed between crossbeam 11, and the top and bottom of fusion device ontology 1 are equipped with anti-skidding convex
12 are played, the upper and lower ends of tailgate 13 are provided with " 8 " font screw hole 132, and the middle part of tailgate 13 is equipped with to be penetrated through with center bone grafting hole
After-culture bone hole 131.
Therein, the resistance to compression energy-consuming device includes resistance to compression bolt 2 and energy dissipation spring circle 3, and 3 sets of energy dissipation spring circle anti-
It presses outside bolt 2, resistance to compression bolt 2 is made of bolt cap 21 and the body of rod 22, and the bolt of perforation is provided on the crossbeam at 1 top of fusion device ontology
Cap sinks to hole 14, and the nut for sinking to the consistent perforation in hole site with bolt cap is provided on the crossbeam of 1 bottom of fusion device ontology and is embedded to hole,
The bolt cap 21 of resistance to compression bolt 2 is inserted into bolt cap and sinks in hole 14, and the body of rod 22 of resistance to compression bolt 2 passes through side opening 102 and is inserted into nut and buries
Enter in hole, the lower part of the body of rod 22 is equipped with external screw thread 23, and nut 24 screws the lower part in resistance to compression bolt 2 and fixes resistance to compression bolt 2
In on fusion device ontology 2.During use, resistance to compression bolt 2 can support lower and upper cross-member 11 to fusion device ontology 1, enhance crossbeam
11 longitudinal compression strength, the outside of resistance to compression bolt 2 are cased with energy dissipation spring circle 3, and energy dissipation spring circle 3 not only can be to resistance to compression bolt 2
Hoop effect is formed, prevents resistance to compression bolt 2 from lateral shear occurs and destroys, what also absorbable 1 bending deformation of fusion device ontology generated
Potential energy is that thermal energy is discharged, so that fusion device ontology 1 be avoided to issue in the repeated action of the extruding force of upper and lower lumbar segment
Raw fatigue rupture.
It is therein, described " 8 " font screw hole 132 by outside vertebra nail hole and inside extrusion screw hole mutually and and
Be symmetrically disposed on about 13 two sides of tailgate at, " 8 " font screw hole, the centerline axis parallel in vertebra nail hole and extrusion screw hole and
It is in 45 ° of angles with the horizontal axis where 1 top planes of fusion device ontology, vertebra nail 5, which is connected through a screw thread, is fixed on vertebra nail
Kong Zhong is threaded with locking bolt 4 in extrusion screw hole, and locking bolt 4 is acted on vertebra nail 5 by lateral compression power,
It effectively prevent vertebra nail 5 to loosen, the top and bottom of fusion device ontology 1 are equipped with anti-skid bulge 12, and anti-skid bulge 12 is in cone
Shape can be pierced into vertebra up and down, prevent the sliding in intervertebral activity of fusion device ontology 1, be used in combination with vertebra nail 5, further
Prevent waist Invasive lumbar fusion device from shifting.
Concrete application of the fusion device ontology 1 in the minimally invasive implant surgery of protrusion of lumber intervertebral disc the following steps are included:
1, preoperative instrument prepares: including fixing special equipment, lumbar intervertebral fusion device, basic instrument packet, intervertebral in lumbar vertebrae
Pan Qixiebao, bone grafting apparatus, C-arm x-ray machine, electric knife, central suction conduit, spinal posture frame, each body position pad for surgery, C
Arm X-ray machine sterile sleeve, sterile shadowless lamp sleeve, bone wax, cotton piece, surgical adhesive membrane, gelfoam etc..
2, art area anaesthetizes: patient carries out operation safety verification after entering operating room, establishes venous transfusion channel, Cooperation Anaesthesia
Teacher carries out anesthesia.According to doctor's advice intravenous drip antibiotic, to keep active drug concentration in surgical procedure blood samples of patients, to reduce
Infection.
3, Postural immobilization: spinal posture frame is placed on spinal operation bed, according to patient's bodily form, regulates spinal posture
The height and width of frame, for patient's prostrate on spinal posture frame, the thorax abdomen of patient should be hanging, and thorax abdomen compression is avoided to cause abdomen
Cavity pressure increases and increases intraoperative hemorrhage；The double of patient pad lower limb pad at one's knees, and both hands natural torsion support avoids ruler on hand-rest plate
Radial nerve injury, the negative plate of electric knife be attached at leg muscle it is abundant place and with constrain belt restraining.
4, Cooperation in operation: in operating field, operation takes Posterior midline approach, passs operation for routine disinfection drape, lagging skin protective film
Knife cuts skin and subcutaneous tissue appears lumbodorsal fascia and spinous process, passs vertebral plate self-retractor and retracts to two sides, with the sharp skull film of width
Vierics are peeled off along spinous process two sides, at any time for dry gauze hemostasis with packs.
It passs grasping tongs and short dilator is inserted into interverbebral disc, get out nerve root retracto and nerve dissector to operator for hard ridge
Capsule and nerve root are retracted and are protected, by dilator along the rectangular slits of flat direction insertion interverbebral disc, to restore intervertebral
The height of disk, then it is fully inserted into interverbebral disc and is persisted down, pay attention to selecting (the 14/8 long support of (12/7 short dilator) reselection
Open device).To make interverbebral disc both sides parallel opening, another notch with method identical with short dilator is inserted into opposite side, which is inserted into, to be grown
Dilator.Protective case sleeve is inserted in long dilator, and the blade on sleeve will be protected to be inserted into interverbebral disc.Impact cap sleeve is existed
On protective case, with bone mallet tapping impact cap until long dilator is taken out with extractor.
With the cancellous bone cut off from the ilium ridge or surgical procedure that patient takes out self in advance from fusion device ontology 1
It is filled up in the internal cavities of fusion device ontology 1 at heart bone grafting hole 101, protects sleeve the broken insertion of fusion device ontology 1 of bone is filled up
Setting position is threaded under and.Convolution adjustment grasping tongs is vertical with backbone to its handle.On mark and protection sleeve on grasping tongs
Notch on the same line, is completely embedded between upper hypocentrum with the center bone grafting hole ensured on fusion device ontology 1；In C-arm X-ray
It is placed in interim pilot pin in the centrum segment treated under machine monitoring, two pieces of suitable vertebra nails are screwed into after accurate positioning
5, after vertebra nail 5 is fixed, locking bolt 4 is screwed into the extrusion screw hole of 132 inside of " 8 " font screw hole makes vertebra follow closely quilt
It is fixed on tailgate 13, prevents in postoperative patient motion process, vertebra nail 5 is loosened and slipped；After-culture bone hole 131 can be according to circumstances
Decide whether to replant into cancellous bone；The series connection effect for functioning as pedicle of vertebral arch pitman of tailgate 13, i.e., by upper and lower two vertebras
The series connection of bone nail 5 becomes an entirety, to realize limitation lumber ertebral disc axial torsion movement to avoid Invasive lumbar fusion device fragmentation
Purpose.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (4)
1. a kind of lumbar intervertebral fusion device, which is characterized in that including fusion device ontology, the left end of fusion device ontology is tapering type wedge
Shape is implanted into end, and the right part of fusion device ontology is equipped with tailgate, and the center bone grafting hole of perforation, fusion are provided at the top of fusion device ontology
The facade of device is provided with the side opening of perforation, center bone grafting hole and side opening and fusion device ontology is partitioned into four crossbeams, consolidates between crossbeam
Surely there is resistance to compression energy-consuming device, the top and bottom of fusion device ontology are equipped with anti-skid bulge, and the upper and lower ends of tailgate are provided with " 8 " word
Type screw hole, the middle part of tailgate are equipped with the after-culture bone hole penetrated through with center bone grafting hole.
2. a kind of lumbar intervertebral fusion device according to claim 1, which is characterized in that the resistance to compression energy-consuming device includes
Resistance to compression bolt and energy dissipation spring circle, outside resistance to compression bolt, resistance to compression bolt is made of energy dissipation spring snare bolt cap and the body of rod, fusion
The bolt cap that perforation is provided on the crossbeam of device bodies top sinks to hole, is provided on the crossbeam of fusion device body bottom portion and sinks to hole with bolt cap
The nut of the perforation of position consistency is embedded to hole, and the bolt cap insertion bolt cap of resistance to compression bolt is sunk in hole, and the body of rod of resistance to compression bolt passes through
Side opening is simultaneously inserted into nut embedment hole, and the lower part of the body of rod is equipped with external screw thread, nut driving in resistance to compression bolt lower part and by resistance to compression
Bolt is fixed on fusion device ontology.
3. a kind of lumbar intervertebral fusion device according to claim 1, which is characterized in that described " 8 " the font screw hole by
The vertebra nail hole in outside and the extrusion screw hole phase of inside simultaneously form, and " 8 " font screw hole is symmetrically disposed on tailgate two sides up and down,
The centerline axis parallel in vertebra nail hole and extrusion screw hole and with the horizontal axis where fusion device bodies top plane in 45 ° folder
Angle.
4. a kind of lumbar intervertebral fusion device described in claim 1, which is characterized in that the fusion device ontology is in lumber ertebral disc
Application in prominent minimally invasive implant surgery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926471.3A CN110478091A (en) | 2018-08-15 | 2018-08-15 | A kind of lumbar intervertebral fusion device and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810926471.3A CN110478091A (en) | 2018-08-15 | 2018-08-15 | A kind of lumbar intervertebral fusion device and its application |
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| Publication Number | Publication Date |
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| CN110478091A true CN110478091A (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810926471.3A Withdrawn CN110478091A (en) | 2018-08-15 | 2018-08-15 | A kind of lumbar intervertebral fusion device and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631844A (en) * | 2020-05-29 | 2020-09-08 | 四川大学华西医院 | Double-skin elastic fixation fusion cage |
-
2018
- 2018-08-15 CN CN201810926471.3A patent/CN110478091A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631844A (en) * | 2020-05-29 | 2020-09-08 | 四川大学华西医院 | Double-skin elastic fixation fusion cage |
| CN111631844B (en) * | 2020-05-29 | 2022-12-23 | 四川大学华西医院 | Double-skin elastic fixation fusion cage |
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Application publication date: 20191122 |