CN108514466A - Invasive lumbar fusion device with buffer part - Google Patents
Invasive lumbar fusion device with buffer part Download PDFInfo
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- CN108514466A CN108514466A CN201810603747.4A CN201810603747A CN108514466A CN 108514466 A CN108514466 A CN 108514466A CN 201810603747 A CN201810603747 A CN 201810603747A CN 108514466 A CN108514466 A CN 108514466A
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- fusion device
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- main part
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30546—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting elasticity, flexibility, spring rate or mechanical tension
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30795—Blind bores, e.g. of circular cross-section
-
- 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
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2002/3093—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth for promoting ingrowth of bone tissue
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30985—Designing or manufacturing processes using three dimensional printing [3DP]
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Prostheses (AREA)
Abstract
Present disclose provides a kind of Invasive lumbar fusion devices with buffer part comprising：Main part, in flat；And support portion comprising be formed in the main part and be arranged in multiple buffer parts on the main part, the buffer part has the elastic portion being formed on main part and the flat part being connect with the elastic portion.In this case, after Invasive lumbar fusion device is implanted between human body such as vertebra, buffer part is in direct contact with vertebra and bears the pressure from vertebra, since buffer part has the elastic portion being formed on main part and the flat part being connect with elastic portion, therefore, buffer part is easy according to the surface that vertebra is contacted with Invasive lumbar fusion device and adaptively stress, so as to improve the clinical repair effect of Invasive lumbar fusion device.Further, since Invasive lumbar fusion device can more uniformly stimulate spinal fusion face, therefore, there is good osteoinductive, bone restoration ecosystem can be promoted.
Description
Technical field
This disclosure relates to a kind of Invasive lumbar fusion device with buffer part.
Background technology
It is prominent with cervical spondylosis, cervical intervertebral disk with the change of the aggravation and modern metropolitan cities people's lives custom of aging of population
Go out the work that the backbone degenerative disease that disease, the protrasion of the lumbar intervertebral disci, lumbar spinal stenosis etc. are representative is just seriously affecting people
And life.Currently, the above-mentioned state of an illness in the early stage the stage when, mostly use conservative therapy greatly such as drug therapy, physical therapy.So
And with the exacerbation of conditions of patients, it needs to be considered as more effective therapy such as spinal fusion art to inhibit disease
The exacerbation of feelings.By taking the protrasion of the lumbar intervertebral disci as an example, when disc herniation compressing canalis spinalis is more than 1/3 or numbness of lower limbs, work occurs
When dynamic difficult, stool and urine inability, the at this moment therapeutic effect of conservative therapy unobvious need to consider pair at this time
Patient implements spinal fusion art.
In spinal fusion art, by the way that disc removal outstanding between vertebra, intervertebral fusion is then implanted between vertebra
Device is to induce spinal fusion together, to achieve the purpose that eliminate lesion.In the clinical application of spinal fusion art, due to vertebra
Between fusion device be placed in human body for a long time after surgery, therefore the factors such as the structure of Invasive lumbar fusion device, manufacturing technology, quality are all right
The postoperative effect of spinal fusion art plays an important role.
Patent document 1 discloses a kind of shaping individuation spinal fusion device, including the upper plate of fusion device, lower roof plate,
Moulding spring, interior biogenic opal cushion rubber, outer biological silica gel ring, buckle A and buckle B.The upper plate and lower roof plate passes through reset
Spring links together, and interior biogenic opal cushion rubber and outer biological silica gel ring are distributed in the inner side and outer side of resetting spring, and pass through card
Button A and buckle B are connected on lower roof plate, and have a bone cement injection hole on outer biological silica gel ring.
However, in above patent document 1, although the fusion of the height of fusion device, angle, gradient etc. can be adjusted
Device, but the shape of the upper plate of fusion device and lower roof plate is fixed, and there are individual difference between each surgery individual, with
The face of human body bone contact cannot be completely bonded.Therefore, the fusion device of patent document 1 is unfavorable for intervertebral fusion effect
Fruit.
Existing technical literature
Patent document 1：Chinese patent application publication number CN104083235A.
Invention content
The disclosure is completed in view of the situation of the above-mentioned prior art, and its purpose is to provide one kind can adapt to different vertebras
Between bone shape, increase its osteoinductive, promote the Invasive lumbar fusion device of bone growth.
For this purpose, present disclose provides a kind of Invasive lumbar fusion devices with buffer part comprising：Main part, in flat；
And support portion comprising be formed in the main part and be arranged in multiple buffer parts on the main part, the buffer part
With the elastic portion being formed on main part and the flat part being connect with the elastic portion.
In this case, after between Invasive lumbar fusion device implantation human body such as vertebra, buffer part and vertebra be in direct contact and
The pressure from vertebra is born, there is the elastic portion being formed on main part due to buffer part and is connect with elastic portion flat
Portion, therefore, buffer part are easy according to the surface that vertebra is contacted with Invasive lumbar fusion device and adaptively stress, melt so as to improve intervertebral
The clinical repair effect of clutch.Further, since Invasive lumbar fusion device can more uniformly stimulate spinal fusion face therefore to have
Good osteoinductive can promote bone restoration ecosystem.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the elastic portion is formed as meander-shaped.
In this case, elastic portion is capable of providing good cushioning effect.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the elastic portion includes being formed slopely described
First shrapnel of main part and the second shrapnel being connect with first shrapnel, first shrapnel and the second shrapnel shape
At there is angle.In this case, support portion can bear the pressure from vertebra well, so as to improve the stress shape of vertebra
Condition avoids causing secondary injury to vertebra.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the main part has reticular structure.At this
In the case of kind, the main part with reticular structure is conducive to qi and blood exchange, promotes bone growth.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the main part and buffer part one at
Shape.Thereby, it is possible to increase the structural stability of Invasive lumbar fusion device.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, in the main part, it is also filled with artificial bone.
Thereby, it is possible to induce bone growth, promote to restore.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the flat part is arranged in the elastic portion
End, the flat part can be at least one of tabular, ellipticity, multilateral shape.Thereby, it is possible to make flat part according to
Vertebra situation is preferably bonded in vertebra face, is preferably played by force effect.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the Invasive lumbar fusion device can be by 3D printing system
Make.Thereby, it is possible to produce the Invasive lumbar fusion device with complicated buffer structure using 3D printing technique.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the main part also have it is multiple up and down
Through hole.Thereby, it is possible to form qi and blood access in Invasive lumbar fusion device, bone growth is promoted to restore.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the artificial bone include bioceramic particle and
Degradable poly ester material.In this case, artificial bone can degrade after promoting bone growth, in main part and support portion
Qi and blood access is formed, the growth recovery of bone is conducive to.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the artificial bone by way of hot pressing with
The main part combines.Thereby, it is possible to so that artificial bone is securely joined with Invasive lumbar fusion device.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the through hole is in regular hexagonal prism shape.By
This, as far as possible can increase through hole while with stability.
In addition, in Invasive lumbar fusion device involved by the disclosure, optionally, the flat part is parallel to the main part.
Thus, it is possible to which the stress stablized, is preferably bonded vertebra.
In accordance with the invention it is possible to provide a kind of shape can adapt to different intervertebral bones, increase its osteoinductive, promotes
The Invasive lumbar fusion device of bone growth.
Description of the drawings
Embodiment of the disclosure will be explained in further detail solely by reference to the example of attached drawing now, wherein：
Fig. 1 is the use state diagram for showing the Invasive lumbar fusion device involved by embodiment of the present disclosure.
Fig. 2 is the stereogram for showing the Invasive lumbar fusion device involved by embodiment of the present disclosure.
Fig. 3 is the diagrammatic cross-section for the Invasive lumbar fusion device for showing the directions hatching line A-A' along Fig. 2.
Fig. 4 is the net structure char for the main body for showing Invasive lumbar fusion device.
Fig. 5 is the side view for showing Invasive lumbar fusion device.
Fig. 6 is the stereogram for the buffer part for showing the Invasive lumbar fusion device involved by embodiment of the present disclosure.
Fig. 7 is the diagrammatic cross-section for the buffer part for showing the directions hatching line B-B' along Fig. 6.
Specific implementation mode
All bibliography full texts of disclosure reference are incorporated herein by reference, as fully expounded.Unless otherwise
It defines, technical and scientific term used in the disclosure has is generally understood phase with disclosure those of ordinary skill in the art
Same meaning.The general guideline of many terms used in this application is provided for those skilled in the art.Art technology
Personnel will appreciate that in the practice for the disclosure with those similar or equivalent many methods described in the disclosure
And material.In fact, the disclosure is never limited to described method and material.
Fig. 1 is the use state diagram for showing the Invasive lumbar fusion device involved by embodiment of the present disclosure.Fig. 2 is to show
The stereogram of the Invasive lumbar fusion device involved by embodiment of the present disclosure is gone out.Fig. 3 is the hatching line side A-A' shown along Fig. 2
To Invasive lumbar fusion device diagrammatic cross-section.
As depicted in figs. 1 and 2, this disclosure relates to (sometimes referred to as " the Invasive lumbar fusion device of Invasive lumbar fusion device 1 with buffer part
1”).In the present embodiment, Invasive lumbar fusion device 1 includes main part 10 and support portion 20.Intervertebral involved by present embodiment
In fusion device 1, main part 10 is in flat, and support portion 20 includes being formed in main part 10 and being arranged in multiple on main part 10
Buffer part 21 (referring to Fig. 3).Each buffer part 200 has the elastic portion 210 being formed on main part 10 and connects with elastic portion 210
The flat part 23 connect.
As shown in Figure 1, after Invasive lumbar fusion device 1 is implanted between human body such as vertebra, the flat part 23 of support portion 20 and vertebra
It is in direct contact and bears the pressure from vertebra 2, since support portion 20 has the buffer part 200 being formed on main part,
Buffer part 200 is easy according to vertebra with surface that Invasive lumbar fusion device 1 contacts and adaptively stress, so as to improve Invasive lumbar fusion device
1 clinical repair effect.Further, since Invasive lumbar fusion device 1 can more uniformly stimulate spinal fusion face, therefore, have good
Good osteoinductive, can promote bone restoration ecosystem.
In some instances, support portion 20 can also be arranged (referring to Fig. 3) simultaneously in the upper and lower surface of main part 10.Example
Such as, support portion 20 can be symmetrically arranged with support portion 20a and support portion 20b about main part 10 (referring to the Fig. 5 being described later on).
In this case, can be melted according to vertebra and intervertebral positioned at the support portion 20a and support portion 20b of the upper and lower surface of main part 10
Surface that clutch 1 contacts and adaptively stress, to further improve the clinical repair effect of Invasive lumbar fusion device 1.
In some instances, Invasive lumbar fusion device 1 can be made by 3D printing.Thereby, it is possible to be made using 3D printing technique
Provide the Invasive lumbar fusion device 1 of multiple buffer structures.
In some instances, main part 10 can be with integrally formed with support portion 20.Thereby, it is possible to increase Invasive lumbar fusion device
1 structural stability.In other examples, main part 10 can also be detachably mounted together with support portion 20.At this
In the case of kind, such as support portion 20 can be targetedly used according to situation between different vertebra and vertebra, thus, it is possible to carry
The applicability of high Invasive lumbar fusion device 1.
Fig. 4 is the net structure char for the main body for showing Invasive lumbar fusion device.
As shown in figure 4, in some instances, main part 10 can also have reticular structure.In this case, can either
The structural stability for improving main part 10 can also be conducive to the qi and blood access of Invasive lumbar fusion device 1, promote bone growth.One
In a little examples, the main part 10 of Invasive lumbar fusion device 1A can have frame structure (referring to Fig. 4).Specifically, main part 10 can
To be laminated by the plane mesh structure of multilayer, there is connecting pole between plane mesh structure.In this case, due to net
The main part 10 of shape structure has more gap, therefore can improve intervertebral qi and blood access.
In other examples, main part 10 can be the reticular structure of plane.Thereby, it is possible to reduce Invasive lumbar fusion device 1
Integral thickness.In some instances, the reticular structure of main part 10 can by triangle, quadrangle, pentagon, hexagon or
The plane mesh structure of other polygons composition.
In some instances, the outer profile of main part 10 can be oval, rectangle, polygon or irregular component
Shape.For example, main part 10 can be in latticed round rectangle.
In some instances, in main part 10, the filler for promoting bone growth can be filled.For example, can be in master
Artificial bone (not shown) is filled in body portion 10.Thereby, it is possible to induce bone growth, promote to restore.
In some instances, artificial bone is combined by way of hot pressing with main part 10.Thereby, it is possible to make artificial bone with
Invasive lumbar fusion device 1 is securely joined with.
In some instances, artificial bone may include bioceramic particle and degradable poly ester material.In this case,
Artificial bone can degrade after promoting bone growth, and qi and blood access is formed in reticular structure, avoid hindering the qi and blood of intervertebral logical
Road is conducive to the growth recovery of bone.
In some instances, bioceramic particle may include such as hydroxyapatite, tricalcium phosphate.In some examples
In, degradable poly ester material may include such as polylactic acid, polycaprolactone and its copolymer.
In other examples, main part 10 can also be solid construction.In this case, the structure of main part 10 is more
Add firm.
In addition, in the present embodiment, the constituent material of main part 10 is not particularly limited, according to different application feelings
At least one of metal, ceramics, polymer may be used in shape.In some instances, for having both biocompatibility and hardness
The considerations of, main part 10 preferably uses the materials such as Titanium, polyether-ether-ketone (PEEK) to be made.
In some instances, main part 10 can also have multiple through holes (not shown) up and down.Thereby, it is possible to
Qi and blood access is formed, bone growth is promoted to restore.Wherein, the position of through hole is not particularly limited, in some instances, perforation
Hole can be evenly distributed in main part 10.
Main part 10 be reticular structure in the case of, through hole can be in polygon prism shape for example triangular prism, quadrangular,
The shapes such as regular hexagonal prism.Thereby, it is possible to increase the size of through hole while ensureing the structural stability of main part 10.Another
In some examples, through hole can be with rounded, triangle, quadrangle or other irregular shapes.
In some instances, main part 10 can also have blind hole (not shown).Specifically, in some instances, it is blind
Hole is arranged along the length direction of main part 10 in the solid construction part of main part 10.In some instances, blind hole can be in
The shapes such as rectangle, square, circle, ellipse, triangle, polygon or irregular figure.In this case, in intervertebral
Fusion device 1 is installed to after between vertebra, and with the growth of bone, bony segment can enter blind hole, be attached on Invasive lumbar fusion device 1,
To which the combination of sclerotin and Invasive lumbar fusion device 1 be better achieved.
In other examples, artificial bone (not shown) can also be filled in blind hole.Thus, it is possible to guide bone growth
Into blind hole, accelerate fusion.
Fig. 5 is the side view for showing Invasive lumbar fusion device.Fig. 6 is the intervertebral shown involved by embodiment of the present disclosure
The stereogram of the buffer part of fusion device.Fig. 7 is the diagrammatic cross-section for the buffer part for showing the directions hatching line B-B' along Fig. 6.
In the present embodiment, as described above, support portion 20 includes being formed in main part 10 and being arranged on main part 10
Multiple buffer parts 200.In some instances, multiple buffer parts 200 spaced apart can be formed on main part 20.
Such as multiple buffer parts 200 are contacted with vertebra face when stress, buffer part 200 can occur elastic deformation and better adapt to vertebra
The shape in bone face.
In some instances, buffer part 200 can have be formed in elastic portion 210 on main part and with elastic portion 210
The flat part 220 of connection.In this case, in 200 stress of buffer part, the generation elastic deformation of elastic portion 210, and flat part
220 form good be bonded with stress surface such as vertebra face.
In some instances, elastic portion 210 can be formed as meander-shaped, and in this case, elastic portion is capable of providing
Good cushioning effect.
In some instances, elastic portion 210 may include being formed slopely in the first shrapnel 211 of main part 10 and with first
The second shrapnel 212 that shrapnel 211 connects.Wherein, the first shrapnel 211 and the second shrapnel 212 could be formed with angle theta.At some
In example, the first shrapnel 211 and the second shrapnel 212 are formed by angle theta and can be spent for 0 to 45, such as angle theta can be 30
Degree, 45 degree or 60 degree etc..
In other examples, the angle theta of the first shrapnel 211 and the second shrapnel 212 is adjustable.In such case
Under, the flexibility of the buffer part 200 of support portion 20 can be improved, the applicability of Invasive lumbar fusion device 1 is enhanced.
Elastic portion 210 involved by present embodiment is not limited to the first shrapnel 211 and the second shrapnel 212.In some examples
In, elastic portion 210 can also be the meander-shaped being made of more shrapnels.For example, elastic portion 210 may include 3,4,
5 or more shrapnels.In some instances, multiple shrapnels form elastic portion 210 in overlapping manner.Thereby, it is possible to increase
The elastic deformation ability and stability of elastic portion 210.
In some instances, the first shrapnel 211 can also be with the second shrapnel 212 and be detachably mounted together.As a result,
The angle between the first shrapnel 211 and the second shrapnel 212 can be adjusted by replacing the first shrapnel 211 or the second shrapnel 212
θ。
As described above, in elastic portion 210, since the first shrapnel 211 and the second shrapnel 212 are formed with angle, it will
When Invasive lumbar fusion device 1 is implanted between vertebra, bear to ease up by the elastic deformation of the first shrapnel 211 and the second shrapnel 212
The pressure for rushing vertebra avoids causing two to vertebra so as to make more efficient pressure of the support from vertebra of Invasive lumbar fusion device 1
Secondary injury.
In some instances, flat part 220 can also be with elastic portion 210 and be detachably mounted together.Thus, it is possible to
The support effect of Invasive lumbar fusion device 1 is adjusted by replacing the flat part 220 of different materials.
In some instances, as described above, the first shrapnel 211 inclined can be arranged on main part 10 (referring to Fig. 4).
In some instances, the first shrapnel 211 is abreast arranged along the length direction of main part 10.Such as first shrapnel 2111,
One shrapnel 2112, the first shrapnel 2113..., the first shrapnel 211nIt is arranged side by side on main part 10.In this case,
Second shrapnel 2121, the second shrapnel 2122, the second shrapnel 2123..., the second shrapnel 212nWith the first shrapnel 2111, the first shrapnel
2112, the first shrapnel 2113..., the first shrapnel 211nIt is separately connected and is formed with angle theta.
In addition, in other examples, the setting direction of the first shrapnel 211 can be different, such as the first shrapnel
2111, the first shrapnel 2112, the first shrapnel 2113..., the first shrapnel 211nIt can be formed in main part with differently inclination angle
On 10.
In addition, in some instances, the setting direction of the second shrapnel 212 can be different, such as the second shrapnel 2121、
Second shrapnel 2122, the second shrapnel 2123..., the second shrapnel 212nCan main body be formed in with differently inclination angle respectively
First shrapnel 211 in portion 101, the first shrapnel 2112, the first shrapnel 2113..., the first shrapnel 211n.In this case, by
This, each buffer part 200 is capable of the force-bearing situation of more efficiently adaptive vertebra.
In addition, in some instances, stress collection can be reduced by increasing the quantity of buffer part 200 in support portion 20
In so that the structure stress distribution inside Invasive lumbar fusion device 1 is more uniform.
In addition, in other examples, elastic portion 210 can also be to be made of pillar, spring or bending structure.As a result,
Flexibility and the alternative of 210 structure of elastic portion can be increased.
In some instances, elastic portion 210 can be made of the material with certain elasticity.Specifically, elastic
Portion 210 can be made of one or more in metal, ceramics, polymer.Thus, it is possible to by select suitable material come
Make the elastic portion 210 with suitable elasticity.Such as：One or more in Titanium, polyether-ether-ketone (PEEK) etc. are made.
In some instances, the making material of the different parts of buffer part 200 can be different.Specifically, elastic
Portion 210, flat part 220 can be made from a variety of materials respectively.Thus, it is possible to select corresponding tilt degree according to corresponding situation
Pillar Invasive lumbar fusion device 1.
In some instances, flat part 220 can be at least one of tabular, ellipticity, multilateral shape.As a result,
Different 220 shapes of flat part can be selected according to different fusion devices.
In some instances, flat part 220 using the end of elastic portion 210 as fulcrum can also a degree of incline
Tiltedly.In this case, flat part 220 can correspondingly tilt when Invasive lumbar fusion device 1 is under pressure, to preferably with bone into
Row fitting.
As described above, support portion 20 can also be simultaneously arranged in the upper and lower surface of main part 10.In this case, intervertebral
Fusion device 1 can carry out induction stimulation to bone simultaneously by the support portion 20 of upper and lower surface, promote restoration ecosystem.
Describe the various embodiments of the disclosure in a specific embodiment above.Although these descriptions directly describe
State embodiment, it should be understood that, it may occur to persons skilled in the art that specific embodiment shown and described herein
Modification and/or deformation.Any such modification or deformation fallen within the scope of this specification is also intended to be included therein.Unless
It particularly points out, otherwise the word being intended that in specification and claims and phrase of inventor is endowed those of ordinary skill
It is common and custom meaning.
The above description of the applicant's various embodiments of the known disclosure when submitting the application is had been presented for, and
And it is intended for the purpose of illustration and description.This explanation is not intended to the limit present invention, does not also limit the invention to disclosed
Exact form, and many modification and variation can be carried out according to the above instruction.Described embodiment is for explaining this public affairs
The principle and its practical application opened, and enable others skilled in the art with various embodiments and be suitable for pre-
The various modifications of the special-purpose of phase utilize the disclosure.Accordingly, it is intended to which the present disclosure is not limited to disclosed for realizing the disclosure
Disclosed specific embodiment.
Although the specific embodiment of the disclosure has been shown and described, to those skilled in the art show and
It is clear to, the introduction based on the disclosure, deformation and modification can be made without departing from the disclosure and its broader aspect, because
This appended claims will cover all such changes and modifications in the true spirit and range of the disclosure within its scope.
It will be understood by those skilled in the art that in general, the term used in the disclosure is generally intended to as open to the outside world term (such as term
" comprising " should be interpreted " to include but not limited to ", and term " having " should be interpreted " at least having ", and term " comprising " should be by
It is construed to " include but not limited to ").
Claims (10)
1. a kind of Invasive lumbar fusion device with buffer part, which is characterized in that
Including：
Main part, in flat；And
Support portion comprising be formed in the main part and be arranged in multiple buffer parts on the main part, the buffer part
With the elastic portion being formed on main part and the flat part being connect with the elastic portion.
2. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The elastic portion is formed as meander-shaped.
3. Invasive lumbar fusion device according to claim 1 or 2, it is characterised in that：
The elastic portion include be formed slopely the main part the first shrapnel and connect with first shrapnel second
Shrapnel, first shrapnel are formed with angle with second shrapnel.
4. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The main part has reticular structure.
5. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The main part and the buffer part are integrally formed.
6. Invasive lumbar fusion device according to claim 1, it is characterised in that：
In the main part, it is also filled with artificial bone.
7. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The flat part is arranged in the end of the elastic portion, the flat part in tabular, ellipticity, multilateral shape extremely
Few one kind.
8. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The main part also has multiple through holes up and down.
9. Invasive lumbar fusion device according to claim 1, it is characterised in that：
The artificial bone includes bioceramic particle and degradable poly ester material.
10. Invasive lumbar fusion device according to claim 6, it is characterised in that：
The artificial bone is combined by way of hot pressing with the main part.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010390602.8A CN111529144B (en) | 2018-06-12 | 2018-06-12 | Self-adaptive intervertebral fusion device |
| CN201810603747.4A CN108514466B (en) | 2018-06-12 | 2018-06-12 | Intervertebral fusion device with buffer part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810603747.4A CN108514466B (en) | 2018-06-12 | 2018-06-12 | Intervertebral fusion device with buffer part |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010390602.8A Division CN111529144B (en) | 2018-06-12 | 2018-06-12 | Self-adaptive intervertebral fusion device |
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| Publication Number | Publication Date |
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| CN108514466A true CN108514466A (en) | 2018-09-11 |
| CN108514466B CN108514466B (en) | 2020-06-12 |
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| CN201810603747.4A Active CN108514466B (en) | 2018-06-12 | 2018-06-12 | Intervertebral fusion device with buffer part |
| CN202010390602.8A Active CN111529144B (en) | 2018-06-12 | 2018-06-12 | Self-adaptive intervertebral fusion device |
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| CN202010390602.8A Active CN111529144B (en) | 2018-06-12 | 2018-06-12 | Self-adaptive intervertebral fusion device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN111529144B (en) | 2022-11-15 |
| CN111529144A (en) | 2020-08-14 |
| CN108514466B (en) | 2020-06-12 |
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