CN107049564A - A kind of vertebral fusion device through minimally invasive path approach - Google Patents
A kind of vertebral fusion device through minimally invasive path approach Download PDFInfo
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- CN107049564A CN107049564A CN201710298505.4A CN201710298505A CN107049564A CN 107049564 A CN107049564 A CN 107049564A CN 201710298505 A CN201710298505 A CN 201710298505A CN 107049564 A CN107049564 A CN 107049564A
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- bag
- fusion device
- minimally invasive
- vertebral fusion
- path approach
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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
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
-
- 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
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
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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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of vertebral fusion device through minimally invasive path approach, including bag and backing material, the bag can be folded or can shunk, in one end of the bag, injection port is set, the backing material injects the inside of the bag by the injection port, the face that the bag is contacted with upper hypocentrum is centrum contact surface, the restriction mechanism of preset shape is provided with the centrum contact surface, when in bag implantation interverbebral disc and when completing the backing material injection, the centrum contact surface of the bag is in preset shape；The contact area for solving fusion device and upper hypocentrum is uncontrollable so that bone grafting space it is too small and influence above and below vertebral fusion effect the problem of；It can realize and disc height is adapted to without rank and be controllable with the contact area of upper hypocentrum.
Description
Technical field
The present invention relates to spinal interbody fusion field, and in particular to a kind of vertebral fusion device through minimally invasive path approach.
Background technology
Backbone degenerative disease and its structural damage are to cause human necks, shoulders lumbocrural pain, sensation and motor function impaired very
To the major reason lost.The fifties in last century, Cloward proposes posterior lumbar fusion process (PLIF), the technology first
Develop into one of basic art formula of current spinal surgery.The intervertebral that Badgy and Kuslich in 1986 designs suitable for human body melts
Clutch (Cage), i.e. BAK systems.Hereafter, Intervertebral fusion technology has large development, as treatment backbone degeneration disease
A kind of basic operative mode of disease and structural damage.
The principle of Invasive lumbar fusion device is that centered on pathological interspinal gap, after implantation Invasive lumbar fusion device, distracting force makes fusion
Muscle, fibrous ring and the forward and backward longitudinal ligament of section are under continued tension state, reach Fusion levels and fusion device three-dimensional super
Statics is fixed.Secondly, Invasive lumbar fusion device is by recovering the height of intervertenral space, to recover before backbone, the stress of center pillar and stably,
Recover, maintain the intrinsic physiology of backbone raised, expand intervertebral foramen, alleviate dural sac, the compression of nerve root.Invasive lumbar fusion device it is hollow
Structure provides good mechanical environment for the fusion of the cancellous bone in it, so as to reach the purpose of interface permanent fusion.
Existing conventional fusion device is generally the case structure of solid shape, is adapted to by a series of highly different models
Different interbody space, it is impossible to the intervertenral space matching of complete and sufferer；And form cannot be converted, wound is larger during implantation,
Larger to patient trauma, post-operative recovery is slow.
For the defect of the said goods structure, the design of some expansive fusion devices is occurred in that.For example, Chinese patent
A kind of intervertebral filling fusing device is disclosed in the A of CN 105380735, the adjacent vertebra of any two for inserting human body lumbar vertebrae
Between body soleplate, by accommodating member and located at the accommodating member periphery reticulate body constitute, when using to the accommodating member with it is described
The first filler with self-solidifying solidity is packed between reticulate body.But it is not provided with limiting structure in reticulate body periphery, filling
During the first filler of self-solidifying solidity, the shape that netted volume expansion goes out is uncontrollable, and causing can not with the contact area of upper hypocentrum
Control so that bone grafting space it is too small and influence above and below vertebral fusion effect.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention, which are to provide one kind, to be realized without rank
Adapt to disc height and with the controllable vertebral fusion device through minimally invasive path approach of contact area of upper hypocentrum.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of vertebral fusion device through minimally invasive path approach, including bag and backing material, the bag can fold or
It can shrink, injection port is set in one end of the bag, the backing material is injected in the bag by the injection port
Portion, the face that the bag is contacted with upper hypocentrum is centrum contact surface, and preset shape is provided with the centrum contact surface
Mechanism is limited, when in bag implantation interverbebral disc and when completing the backing material injection, the centrum of the bag connects
Contacting surface is in preset shape.
The purpose of the present invention can also further be realized by following technical scheme：
It is preferred that, the restriction mechanism is retractable structure.
It is preferred that, the mechanism that limits is engraving or the mesh sheets woven or the annular being made up of elastomeric material
Frame.
It is preferred that, the restriction mechanism is folding structure, and the folding structure is connected to each other and opened up by plurality of sheets
It is preset shape after opening.
It is preferred that, described vertebral fusion device also includes contractile auxiliary limiting structure, the auxiliary limiting structure
The side of the bag is arranged on, its width is less than or equal to width during bag nature expanded state.
It is preferred that, the auxiliary limiting structure includes the connection of two laminated structures of two laminated structures and connection
Part.
It is preferred that, two laminated structures are made of to be made into integration or Split assembled with the connector.
It is preferred that, the connector is arcuate structure, two laminated structures of two ends connection of the arcuate structure
Adjacent end portion.
It is preferred that, the connector is plurality of rods or silk, and many bars or silk are arranged on two laminated structures
Between.
It is preferred that, the laminated structure is the mesh sheets of engraving or braiding.
It is preferred that, it is described auxiliary limiting structure with it is described restriction mechanism be made into integration or Split assembled caged knot
Structure.
It is preferred that, the bag sets through hole along the direction perpendicular to the centrum contact surface.
It is preferred that, the space that the through hole is limited is bone grafting storehouse, the bone grafting storehouse and the inner space phase of the bag
Isolation.
It is preferred that, the through hole has multiple, has communicating passage between multiple through holes.
It is preferred that, anti-skid structure is set on the centrum contact surface.
It is preferred that, the anti-skid structure is grid-shaped sheet material, lattice of the backing material stress from the grid-shaped sheet material
Sub- China and foreign countries convex into anti-skid bulge.
It is preferred that, the anti-skid structure is compressible sheet material, is set on the face that the compressible sheet material is contacted with centrum
Hangnail or projection.
It is preferred that, the anti-skid structure is integrally fixed at the hangnail or projection on the bag surface.
It is preferred that, it is provided with check-valves on the injection port.
It is preferred that, the backing material is spontaneous coagulation filling material of bone.
Compared with the existing technology, advantages of the present invention and progress are as follows：
1st, the vertebral fusion device through minimally invasive path approach of the invention is by foldable or collapsible bag intracapsular injection
The mode of backing material forms fusion device, it is possible to achieve nonrated rise is so as to adapt to different intervertenral spaces.
2nd, set on the centrum contact surface that the vertebral fusion device through minimally invasive path approach of the invention is contacted with upper hypocentrum
Restriction mechanism is equipped with, limitation centrum contact surface turns into preset shape, ensured that the contact surface size of the system and centrum is controllable.
3rd, the side of the vertebral fusion device through minimally invasive path approach of the invention is provided with auxiliary limiting structure, prevents bag
Arbitrarily heave the side of capsule, it is ensured that bone grafting volume is not occupied excessively by backing material, is conducive to the fusion of centrum.
4th, the vertebral fusion device through minimally invasive path approach of the invention, can be by way of compressing or folding by body
Product reduces, and enters intervertenral space by minimally invasive passage, is then expanded in intervertenral space so that the wound of patient is smaller during operation,
Be conducive to post-operative recovery.
5th, the vertebral fusion device through minimally invasive path approach of the invention, in bag along perpendicular to the centrum contact surface
Direction sets one or more through holes, and the space that the through hole is limited is bone grafting storehouse, and multiple bone grafting storehouses are conducive to rear symplectic bone to live
The injection of property material.
6th, the vertebral fusion device through minimally invasive path approach of the invention, sets on the surface that bag is contacted with upper hypocentrum
Putting anti-skid structure can effectively prevent vertebral fusion device from being moved after implanting.
7th, the injection-tube of the vertebral fusion device through minimally invasive path approach of the invention includes inner and outer tubes, outer tube it is remote
End sets the connector buckle-type of elastic bayonet lock and injection port to connect, and can both avoid using rotation is led by mistake caused by threaded connection
Cause to depart from and influence operation, can make it that the wall thickness of filler delivery pipe is thinner by the design substitution screw thread of elastic bayonet lock again.
8th, the injection port of the vertebral fusion device through minimally invasive path approach of the invention, which is provided with check-valves, can prevent from filling out
It is charged to the backing material leakage in bag.
Brief description of the drawings
Fig. 1 is the structural representation of the vertebral fusion device through minimally invasive path approach；
Fig. 2 a are the structural representations that the first limits mechanism；
Fig. 2 b are the structural representations of second of restriction mechanism；
Fig. 2 c are the structural representations that the third limits mechanism；
Fig. 3 is to limit the structural representation that mechanism is folding structure；
Fig. 4 a are the structural representations of the first auxiliary limiting structure；
Fig. 4 b are the structural representations of second of auxiliary limiting structure；
Fig. 4 c are the third profile of auxiliary limiting structure along short transverse；
Fig. 5 is to limit the structural representation that mechanism is combined into caged with auxiliary limiting structure；
Fig. 6 a are the structural representations of the first through hole；
Fig. 6 b are the structural representations of second of through hole；
Fig. 6 c are the structural representations of the third through hole；
Fig. 7 a are the structural representations of the first bone active material mode of movement of vertebral fusion device；
Fig. 7 b are the structural representations of second of bone active material mode of movement of vertebral fusion device；
Fig. 8 a are the structural representations of the injection-tube of vertebral fusion device；
Fig. 8 b are the partial enlarged drawings of the distal outer tube of the injection-tube of vertebral fusion device；
Fig. 9 a are the structural representations that anti-skid structure is grid-shaped sheet material；
Fig. 9 b are the structural representations that anti-skid structure is compressible sheet material；
Wherein, 1 is bag, and 2 be to limit mechanism, and 3 be injection-tube, and 11 be backing material, and 12 be injection port, and 13 be anti-Slipped Clove Hitch
Structure, 14 be connector, and 15 be bone grafting storehouse, and 16 be first through hole, and 17 be the second through hole, and 21 be mesh sheets, and 22 be ring frame, 23
It is the flexible wires or silk of no ductility, 24 be folding structure, and 31 be inner tube, and 32 be outer tube, and 321 be elastic bayonet lock, and 4 be auxiliary
Limiting structure, 41 be laminated structure, and 42 be connector.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, develop simultaneously embodiment referring to the drawings
The present invention is described in detail.
As shown in figure 1, a kind of vertebral fusion device through minimally invasive path approach, including bag 1 and backing material, the bag
Capsule 1 can be folded or can shunk, and injection port 12 is set in one end of the bag 1, and the backing material 11 passes through the injection port
The inside of the 12 injection bags 1, the face that the bag 1 is contacted with upper hypocentrum is centrum contact surface, in centrum contact
The restriction mechanism 2 of preset shape is provided with face, when the bag 1 is implanted into interverbebral disc and completes the backing material injection
When, the centrum contact surface of the bag 1 is in preset shape.
The bag 1 can be formed by implantable silk material braiding, for example, the braiding utricule of PET wire rods；Can also be
The film utricule that implantable material is made, the film utricule of for example, PTFE sintering.By injecting fid into bag 1
Material, may be such that the vertebral fusion device is nonrated and adapts to different interbody spaces.
As illustrated in fig. 4 c, the backing material 11 is spontaneous coagulation filling material of bone, such as bone cement.The backing material 11
It is fluid state in injection, the backing material 11 is injected to the bag 1, extremely after required shape, the backing material
Can voluntarily it solidify in 11 short time, so as to provide stable support between upper hypocentrum.
The restriction mechanism 2 of preset shape is provided with the centrum contact surface of the bag 1, described preset shape can be
The shape for being conducive to supporting hypocentrum such as square, circular.When the injection of backing material 11 enters bag 1, bag 1 is limited to
The limitation of mechanism 2, centrum contact surface turns into preset shape.
In one embodiment, the restriction mechanism 2 is retractable structure.As shown in Figure 2 a, the restriction mechanism 2 is
Engraving or the mesh sheets 21 of braiding, are made up of elastomeric material, and bag 1 is fixed on by the connected mode for being bonded or suturing
Centrum contact surface on, this connected mode can avoid the mechanical snapping of complexity so that overall after fusing device compression
Size is smaller.As shown in Figure 2 b, the mechanism 2 that limits can also be the ring frame 22 being made up of elastomeric material.As shown in Figure 2 c,
The restriction mechanism 2 can also be made up of many flexible wires or silk 23 without ductility, and the flexible wires or silk 23 are cross-woven,
Connect the periphery of the centrum contact surface of bag 1.The ring frame 22 and Duo Gen flexible wires or silk 23 without ductility pass through bonding
Or the connected mode of suture is fixed on that the mechanical snapping of complexity can be avoided on bag 1 so that after fusing device compression
Overall dimension is smaller.
In another embodiment, the restriction mechanism 2 is folding structure 24, as shown in figure 3, the foldable knot
Structure 24 is connected to each other by plurality of sheets to be formed, and is fixed on the centrum contact surface of bag 1, when bag 1 is filled by backing material 11
When, limit the nature of mechanism 2 turns into preset shape with the expansion of bag 1.
In the side of the bag 1, contractile auxiliary limiting structure 4 is additionally provided with, its width is less than or equal to described
Width during the nature expanded state of bag 1, so when bag 1 is filled by backing material 11, the side of bag 1 will not arbitrarily be roused
Rise, it is ensured that bone grafting volume is not occupied excessively by backing material, is conducive to the fusion of centrum.
In one embodiment, the auxiliary limiting structure 4 includes two laminated structures 41 and connected described two
The connector 42 of laminated structure 41, the laminated structure 41 can be integrated what is be made with the connector 42, can also pass through
The fixed form such as welding or bonding is combined.As shown in fig. 4 a, the laminated structure 41 is netted for what is carved or weave
Sheet material, is made up of elastomeric material, is fixed on by the connected mode for being bonded or suturing on the opposite face of bag 1 or so；The connection
Part 42 is arcuate structure, and two ends connect the adjacent end portion of two laminated structures 41, and mechanism 4 is limited as complete auxiliary,
And it can integrally be compressed.As shown in Figure 4 b, the connector 42 can also be plurality of rods or silk, and plurality of rods or silk are set
Between two laminated structures 21, the two ends of such as plurality of rods or silk connect the centre of two laminated structures 41 respectively
Part, forms complete auxiliary limiting structure 4, limits the full shape of bag.
In another embodiment, as illustrated in fig. 4 c, the auxiliary limiting structure 4 is many flexible wires without ductility
Or silk, two ends connect the left and right opposite face of the bag 1, width of its length of run less than or equal to the bag 1 respectively.It is logical
Flexible wires or silk without ductility carry out spacing to the width of the left and right opposite face of the bag 1 described in excessive root so that bag 1
Side will not arbitrarily heave when full.
The auxiliary limiting structure 4 can be made into integration or Split assembled with limiting mechanism 2, it is to avoid both interfere with each other,
Influence the diameter after the compression of vertebral fusion device.As shown in figure 5, the restriction mechanism 2 is network structure, the auxiliary limits knot
Two laminated structures 41 of structure 4 are also network structure, are connected into cage structure with the restriction mechanism 2, it is to avoid use company
Fitting 42, reduces the diameter after whole vertebral fusion device compression.
The bag 1 sets through hole along perpendicular to the direction of the centrum contact surface, and shape is filled when bag 1 is in nature
The through hole extends to hypocentrum contact surface during state, and bone grafting storehouse 15 is in the space that the through hole is limited, itself and the bag
Intracapsular packing space is mutually isolated, can be injected into bone grafting storehouse 15 bone active material make above and below vertebral fusion.The through hole
Can be square (as shown in Figure 6 a), or circular (as shown in Figure 6 b).As fig. 6 c, the through hole is alternatively many
It is individual, there is communicating passage between multiple through holes.Multiple bone grafting storehouses are conducive to the injection of follow-up bone active material.
As shown in Figure 7a, the first through hole 16 connected with bone grafting storehouse 15, the injection port 12 are provided with the side of bag 1
The side of first through hole 16 is arranged on, can be again to first through hole after backing material 11 are injected into bag 1 by injection-tube 3
Insertion filling pipe filling bone active material, completes the implantation of whole vertebral fusion device in 16.
As shown in Figure 7b, the second through hole 17 connected with bone grafting storehouse 15, the injection port 12 are provided with the side of bag 1
The side face for the through hole to form bone grafting storehouse is arranged on, and it is coaxial with the second through hole 17, so inject the injection-tube 3 of backing material 11
It can be nested together in prepackage with the filling pipe of filling bone active material, in use, after injection backing material 11, extracting injection
Pipe 3 can fill bone active material, simple to operate coherent.
In one embodiment, check-valves is provided with injection port 12, the support being filled into bag can be prevented
Material is revealed.The check-valves is check valve.
As shown in figs. 8 a and 8b, connector 14, shape between the connector 14 and injection-tube 3 are set in the injection port 12
Into being detachably connected.Described be detachably connected can be threaded connection or buckle-type connection.As shown in Figure 8 a, the injection-tube 3
Including inner tube 31 and outer tube 32, the outer tube 32 be sleeved in said inner tube 31 and relative said inner tube 31 axially movable, institute
The distal end for stating outer tube 32 sets elastic bayonet lock 321, and the distal end of said inner tube 31 passes through the elastic bayonet lock 321 and the connector
14 buckle-types are connected.When 31 elasticity of extension bayonet socket 321 of said inner tube, the stress of elastic bayonet lock 321 opens the cooperation of being adapted to property
Connector 14 achieves a fixed connection.As shown in Figure 8 b, when inner tube 31 contracts from elastic bayonet lock 321, the non-stress of elastic bayonet lock 321
Closure is replied, connector 14 is automatically disengaged so that injection-tube 3 can be unloaded integrally.The distal end of outer tube 32 sets elastic bayonet lock 321
Being connected with the buckle-type of connector 14 of injection port 12 can both avoid using rotation causes to depart from influence by mistake caused by threaded connection
Operation, can make it that the overall wall of injection-tube 3 is thinner by the design substitution screw thread of elastic bayonet lock again.
In order to prevent vertebral fusion device from being moved after implanting, set anti-on the centrum contact surface of the bag 1
Slipped Clove Hitch structure 13, as shown in Fig. 9 a and 9b, the anti-skid structure 13 is the hangnail or projection for being fixed on bag surface, with vertebra up and down
Body surface face is fitted together to, and prevents vertebral fusion system from shifting；As illustrated in fig. 9, the anti-skid structure 13 can also be grid-shaped sheet material,
When the bag 1 is filled, the stress of backing material 11 convexes into anti-skid bulge from the grid China and foreign countries of the grid-shaped sheet material；
As shown in figure 9b, the anti-skid structure 13 is compressible sheet material, the outside of bag 1 is arranged on, in the compressible sheet material and vertebra
Hangnail or projection are provided with the face of body contact.
Finally it should be noted that the foregoing is only the preferred embodiment of the present invention, this is not limited to
Invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it should be included in this hair
Within bright protection domain.
Claims (20)
1. a kind of vertebral fusion device through minimally invasive path approach, it is characterised in that：Including bag (1) and backing material (11),
The bag (1) can be folded or can shrink, and injection port (12), the backing material (11) are set in one end of the bag (1)
The inside of the bag (1) is injected by the injection port (12), the bag (1) connects with the face that upper hypocentrum is contacted for centrum
Contacting surface, is provided with the restriction mechanism (2) of preset shape on the centrum contact surface, when in the bag (1) implantation interverbebral disc
And when completing the backing material (11) injection, the centrum contact surface of the bag (1) is in preset shape.
2. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：The restriction mechanism
(2) it is retractable structure.
3. the vertebral fusion device according to claim 2 through minimally invasive path approach, it is characterised in that：The restriction mechanism
(2) it is engraving or the mesh sheets (21) woven or the ring frame (22) being made up of elastomeric material.
4. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：The restriction mechanism
(2) it is folding structure (24), the folding structure is connected to each other by plurality of sheets and is preset shape after deploying.
5. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：Described centrum is melted
Attach together to put and also include contractile auxiliary limiting structure (4), the auxiliary limiting structure (4) is arranged on the side of the bag (1)
Face, its width is less than or equal to the width during bag (1) nature expanded state.
6. the vertebral fusion device according to claim 5 through minimally invasive path approach, it is characterised in that：The auxiliary is limited
Structure (4) includes two laminated structures (41) and connects the connector (42) of two laminated structures (41).
7. the vertebral fusion device according to claim 6 through minimally invasive path approach, it is characterised in that：Two sheets
Structure (41) is made of to be made into integration or Split assembled with the connector (42).
8. the vertebral fusion device according to claim 6 through minimally invasive path approach, it is characterised in that：The connector
(42) it is arcuate structure, the two ends of the arcuate structure connect the adjacent end portion of two laminated structures (41).
9. the vertebral fusion device according to claim 6 through minimally invasive path approach, it is characterised in that：The connector
(42) it is plurality of rods or silk, many bars or silk are arranged between two laminated structures (41).
10. the vertebral fusion device according to claim 6 through minimally invasive path approach, it is characterised in that：The sheet knot
Structure (41) is the mesh sheets of engraving or braiding.
11. the vertebral fusion device according to claim 5 through minimally invasive path approach, it is characterised in that：The auxiliary limit
Determine structure (4) with it is described restriction mechanism (2) be made into integration or Split assembled cage structure.
12. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：The bag (1)
Along the direction perpendicular to the centrum contact surface, through hole is set.
13. the vertebral fusion device according to claim 12 through minimally invasive path approach, it is characterised in that：The through hole
The space of restriction is bone grafting storehouse (15), and the bone grafting storehouse (15) and the inner space of the bag (1) are isolated.
14. the vertebral fusion device according to claim 12 through minimally invasive path approach, it is characterised in that：The through hole
Have multiple, there is communicating passage between multiple through holes.
15. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：In the centrum
Anti-skid structure (13) is set on contact surface.
16. the vertebral fusion device according to claim 15 through minimally invasive path approach, it is characterised in that：The anti-Slipped Clove Hitch
Structure (13) is grid-shaped sheet material, and backing material (11) stress convexes into anti-skidding convex from the grid China and foreign countries of the grid-shaped sheet material
Rise.
17. the vertebral fusion device according to claim 15 through minimally invasive path approach, it is characterised in that：The anti-Slipped Clove Hitch
Structure (13) is compressible sheet material, and hangnail or projection are set on the face that the compressible sheet material is contacted with centrum.
18. the vertebral fusion device according to claim 15 through minimally invasive path approach, it is characterised in that：The anti-Slipped Clove Hitch
Structure (13) is integrally fixed at the hangnail or projection on the bag (1) surface.
19. the vertebral fusion device according to claim 1 through minimally invasive path approach, it is characterised in that：In the injection
Check-valves is provided with mouth (12).
20. the vertebral fusion device through minimally invasive path approach according to any one of claim 1-19, it is characterised in that：
The backing material (11) is spontaneous coagulation filling material of bone.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298505.4A CN107049564B (en) | 2017-04-28 | 2017-04-28 | Centrum fusion device that passes through path access of wicresoft |
| PCT/CN2018/084657 WO2018196820A1 (en) | 2017-04-28 | 2018-04-26 | Vertebral fusion device approached through minimally invasive pathway |
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| CN201710298505.4A CN107049564B (en) | 2017-04-28 | 2017-04-28 | Centrum fusion device that passes through path access of wicresoft |
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| CN107049564B CN107049564B (en) | 2020-02-07 |
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| WO (1) | WO2018196820A1 (en) |
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| CN107898538A (en) * | 2017-12-15 | 2018-04-13 | 苏州博习医疗科技有限公司 | A kind of swell-shrink minimally invasive intervertebral shaping fusing device |
| CN108210137A (en) * | 2018-02-27 | 2018-06-29 | 宁波胜杰康生物科技有限公司 | A kind of auxiliary constriction device |
| WO2018196820A1 (en) * | 2017-04-28 | 2018-11-01 | 宁波华科润生物科技有限公司 | Vertebral fusion device approached through minimally invasive pathway |
| CN109431660A (en) * | 2018-12-17 | 2019-03-08 | 北京爱康宜诚医疗器材有限公司 | Tibia support and single condyle prosthese with it |
| CN109528361A (en) * | 2018-12-17 | 2019-03-29 | 天衍医疗器材有限公司 | Femoral component and single condyle prosthese with it |
| CN109730813A (en) * | 2019-03-19 | 2019-05-10 | 卿培东 | A kind of Invasive lumbar fusion device |
| CN110236743A (en) * | 2019-04-24 | 2019-09-17 | 宁波华科润生物科技有限公司 | A kind of minimally invasive fusion device of spontaneous coagulation sealing |
| CN110236744A (en) * | 2019-04-24 | 2019-09-17 | 宁波华科润生物科技有限公司 | A kind of minimally invasive fusion device |
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| WO2018196820A1 (en) * | 2017-04-28 | 2018-11-01 | 宁波华科润生物科技有限公司 | Vertebral fusion device approached through minimally invasive pathway |
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| CN108210137A (en) * | 2018-02-27 | 2018-06-29 | 宁波胜杰康生物科技有限公司 | A kind of auxiliary constriction device |
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| CN109528361A (en) * | 2018-12-17 | 2019-03-29 | 天衍医疗器材有限公司 | Femoral component and single condyle prosthese with it |
| CN109730813A (en) * | 2019-03-19 | 2019-05-10 | 卿培东 | A kind of Invasive lumbar fusion device |
| CN110236743A (en) * | 2019-04-24 | 2019-09-17 | 宁波华科润生物科技有限公司 | A kind of minimally invasive fusion device of spontaneous coagulation sealing |
| CN110236744A (en) * | 2019-04-24 | 2019-09-17 | 宁波华科润生物科技有限公司 | A kind of minimally invasive fusion device |
| CN110236744B (en) * | 2019-04-24 | 2021-07-30 | 宁波华科润生物科技有限公司 | Minimally invasive fusion cage |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018196820A1 (en) | 2018-11-01 |
| CN107049564B (en) | 2020-02-07 |
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