CN108261272A - A kind of artificial canalis spinalis for preventing spinal nerve from oppressing - Google Patents
A kind of artificial canalis spinalis for preventing spinal nerve from oppressing Download PDFInfo
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- CN108261272A CN108261272A CN201810077583.6A CN201810077583A CN108261272A CN 108261272 A CN108261272 A CN 108261272A CN 201810077583 A CN201810077583 A CN 201810077583A CN 108261272 A CN108261272 A CN 108261272A
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B2017/7073—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with intervertebral connecting element crossing an imaginary spinal median surface
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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
- A61F2/30721—Accessories
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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
- A61F2/30721—Accessories
- A61F2/30749—Fixation appliances for connecting prostheses to the body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The present invention relates to a kind of artificial canalis spinalis for preventing spinal nerve from oppressing, the artificial canalis spinalis includes artificial canalis spinalis ontology, lateral connector, fixing device；The artificial canalis spinalis ontology is established by lateral connector and fixing device and connected.Its advantage is shown：A kind of artificial canalis spinalis for preventing spinal nerve from oppressing of the present invention, the artificial canalis spinalis of suitable different segment is designed according to the form of human spine different segment canalis spinalis and size, the tumor tissues latter phase around posterior spinal operation excision dural sac is placed in around corresponding segment dural sac, it is finally fixed together using lateral connector with fixing device and reaches stable, its supporting role can be oppressed with 360 ° of effective prevention tumor recurrences and scar proliferation etc. caused by dural sac, spinal nerve, also can effectively avoid the adhesion around between cicatricial tissue and dural sac and nerve root.
Description
Technical field
The present invention relates to the field of medical instrument technology, specifically, being a kind of artificial canalis spinalis for preventing spinal nerve from oppressing.
Background technology
Due to the special region of anatomy of backbone so that surgery of spinal tumors risk is big, difficulty height, particularly malignant tumour,
The problem of metastatic tumor recurs annoyings spinal surgeons all the time, and spinal nerve caused by tumor recurrence is oppressed so that paraplegia
Incidence remain high.To find out its cause, it is since tumor destruction or operation have cut off and be used for protecting dural sac, spinal cord originally
Anatomical structure --- canalis spinalis.
There are full Vertebrae resection, part vertebral tumor resection currently for the operation method of tumor of spine, for can not
The full vertebral resection of radical-ability needs to depressurize the patient of spinal cord in time again, has scholar to attempt " separating operation ", postoperative after centrum
Caused by stopping tumor recurrence with the method for Cement fixation between side and dural sac compressing, but bone cement displacement ask
Topic, dural sac side and the compressing problem at rear can not still solve, and bone cement is still can bypass after tumor recurrence and causes spinal nerve
Compressing.There is no at present effective method solve the problems, such as tumor recurrence caused by spinal nerve oppress.
Chinese patent literature CN201510558076.0, the applying date 20150902, patent name is：Artificial neural plate and canalis spinalis
Expansion tool, discloses a kind of artificial neural plate and canalis spinalis expands tool, and artificial neural plate includes：Upper support and lower support and positioned at upper
Ontology between support and lower support, at least part of ontology is the bone trabecula with multidirectional micropore grown into for osteocyte
Structure.
The artificial neural plate and canalis spinalis of above patent document expand tool, and artificial neural plate has trabecular bone structure body, bone trabecula
The rough surface of similar cancellous bone structure that structure has, the rough surface and the upper and lower bonding surfaces of the centrum embedded by artificial neural plate
Embedded combination provides incipient stability function to the artificial neural plate after implantation to form the support to centrum, maintains widened
Canal space, and in human recovery process osteocyte and fine vascular creep length along the micropore of trabecular bone structure body
Enter, trabecular bone structure body can finally form the Embedded structure of active fusion so that artificial neural plate and centrum
Self vertebral plate combines together, and no longer permanently relies on nail and fixes, and can realize more firm self-retaining at a specified future date.But about
It is a kind of can effectively solve the problem that tumor recurrence caused by spinal nerve the problem of oppressing technical solution then without it is corresponding openly.
In conclusion one kind phase in operation is needed to be placed in, it surround around dural sac and is fixed on bilateral nail-stick system
On, play the role of a support protection, be unlikely to oppress spinal nerve tumor recurrence, avoid the generation of paraplegia,
The life quality of tumor of spine patient is improved, strives for the artificial canalis spinalis of valuable time for further treatment, and about this people
Work canalis spinalis yet there are no report.
Invention content
The purpose of the present invention is being directed to deficiency of the prior art, one kind phase merging in operation is provided, around dura mater
It around capsule and is fixed on bilateral nail-stick system, plays the role of a support protection, be unlikely to oppress tumor recurrence
Spinal nerve, avoids the generation of paraplegia, improves the life quality of tumor of spine patient, when striving for valuable for further treatment
Between artificial canalis spinalis.
To achieve the above object, the technical solution adopted by the present invention is that：
A kind of artificial canalis spinalis for preventing spinal nerve from oppressing, the artificial canalis spinalis include artificial canalis spinalis ontology, laterally connect
Connect device, fixing device；The artificial canalis spinalis ontology is established by lateral connector and fixing device and connected；
The artificial canalis spinalis ontology includes micropore thin-walled layer and resilient support layer；The micropore thin-walled layer is arranged on outer
Layer, resilient support layer are arranged on internal layer；The surface of the micropore thin-walled layer is used covered with microcellular structure, the resilient support layer
Elastic material is made；
The fixing device includes Universal screw nail, longitudinally connected stick；The Universal screw nail is equipped with connector, connection
Head is the structure type of counterbore, which is equipped with notch, and counterbore inner wall is equipped with internal thread；Longitudinal direction is equipped in the notch to connect
It takes over the baton；The top of the longitudinally connected stick is equipped with locked joints, and locked joints are equipped with external screw thread, the external screw thread and counterbore it is interior
Screw thread matches；
The lateral connector includes connecting plate, and one end of connecting plate is equipped with protrusion, which is equipped with arc-shaped cavity, should
Arc-shaped cavity matches with pitman；Locking screw is additionally provided in the protrusion, which is extruded in the one of longitudinally connected stick
Side.
As a kind of perferred technical scheme, there are two the longitudinally connected stick is total to, it is distributed in artificial canalis spinalis ontology two
Side, and at least two Universal screw nails are equipped on pitman longitudinally in each.
As a kind of perferred technical scheme, the lateral connector is distributed in the both sides of artificial canalis spinalis ontology, and horizontal
It is fixed on artificial canalis spinalis ontology to connector one end, the other end of lateral connector is connected to the longitudinally connected stick of fixing device
On.
As a kind of perferred technical scheme, the canalis spinalis chamber that the artificial canalis spinalis body interior is formed is round, radius vector
Normal range (NR) is 14-15mm.
As a kind of perferred technical scheme, the artificial canalis spinalis ontology forms canalis spinalis chamber as triangle, and radius vector is just
Normal ranging from 12-21mm.
As a kind of perferred technical scheme, the canalis spinalis chamber that the artificial canalis spinalis body interior is formed is oval, is sweared
Diameter normal range (NR) is 15-25mm, average 16-17mm.
As a kind of perferred technical scheme, the canalis spinalis chamber that the artificial canalis spinalis body interior is formed is triangle, horizontal
Diameter normal range (NR) is 20-30mm, average 20-21mm.
As a kind of perferred technical scheme, the canalis spinalis chamber that the artificial canalis spinalis body interior is formed is round, radius vector
Normal range (NR) is 14-15mm.
The invention has the advantages that：
1st, the artificial canalis spinalis of a kind of spinal nerve of the invention compressing, according to the form of human spine different segment canalis spinalis and
Size designs the artificial canalis spinalis of suitable different segment, and the tumor tissues latter phase that posterior spinal operation is cut off around dural sac puts
Enter around corresponding segment dural sac, be finally fixed together using lateral connector with fixing device and reach stable, support is made
With can be oppressed caused by dural sac, spinal nerve with 360 ° of effective prevention tumor recurrences and scar proliferation etc., can also avoid
Adhesion between surrounding cicatricial tissue and dural sac and nerve root.
2nd, artificial canalis spinalis ontology is the form of laminate structure, and laminate structure can effectively save space, be as far as possible dura mater
Capsule and spinal nerve reserve enough spaces.
3rd, the microcellular structure of the micropore thin-walled layer of artificial canalis spinalis ontology can effectively prevent tumour cell and capilary from growing into
Artificial intraspinal tube causes local compression, while can meet freely coming in and going out for water and electrolyte, guarantee dural sac and nerve root again
Nutritional support.
4th, artificial canalis spinalis ontology resilient support layer elastic construction during merging can interim plastotype, conveniently put
Enter, reduce the harassing and wrecking to dural sac and spinal nerve as far as possible, and can ensure its effective mechanical support effect.
5th, the Universal screw nail of fixing device is placed in one by one, and fixed road is established between different Universal screw nails
Diameter, operation is flexible, and fixed route is established in the position that the tumor tissues around dural sac can be cut off according to posterior spinal operation.
6th, the longitudinally connected stick of fixing device has both sides effect, and withered and fallen Universal screw nail on the one hand is fixed on one
It rises, fixed mode transition lines fixed form will be put, fixed effect is definite；On the other hand, connection is provided for lateral connector
Point is fixed on so as to fulfill by artificial canalis spinalis ontology on longitudinally connected stick.
7th, equipped with lateral connector, lateral connector is for longitudinally connected stick and artificial canalis spinalis ontology to be connected, energy
Enough avoid artificial canalis spinalis ontology transverse shifting.
Description of the drawings
Attached drawing 1 is a kind of structure diagram of artificial canalis spinalis for preventing spinal nerve from oppressing of the present invention.
Attached drawing 2 is the schematic diagram of artificial canalis spinalis ontology.
Attached drawing 3 is the structure diagram of fixing device.
Attached drawing 4 is the structure diagram of lateral connector.
Attached drawing 5 is the interface opening state schematic diagram of artificial canalis spinalis ontology.
Attached drawing 6 is the artificial canalis spinalis structure diagram of embodiment 2.
Attached drawing 7 is the artificial canalis spinalis structure diagram of embodiment 3.
Attached drawing 8 is the artificial canalis spinalis structure diagram of embodiment 4.
Attached drawing 9 is the artificial canalis spinalis structure diagram of embodiment 5.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to specific embodiment provided by the invention.
Reference numeral and component part involved in attached drawing is as follows：
1. artificial 11. micropore thin-walled layer of canalis spinalis ontology
12. flexibly support 2. fixing device of layer
21. 211. connector of Universal screw nail
212. locked joints, 22. longitudinally connected stick
3. 31. connecting plate of lateral connector
32. raised 33. arc-shaped cavities
34. 4. interface of locking screw
Embodiment 1
Fig. 1 is please referred to, Fig. 1 is a kind of structure diagram of artificial canalis spinalis for preventing spinal nerve from oppressing of the present invention.One
Kind prevents the artificial canalis spinalis that spinal nerve is oppressed, and the artificial canalis spinalis includes artificial canalis spinalis ontology 1, lateral connector 3, fixes
Device 2；The artificial canalis spinalis ontology 1 is established by lateral connector 3 and fixing device 2 and connected.
Fig. 2 is please referred to, Fig. 2 is the schematic diagram of artificial canalis spinalis ontology 1.The artificial canalis spinalis ontology 1 includes micropore thin-walled
Layer 11 and resilient support layer 12；The micropore thin-walled layer 11 is arranged on outer layer, and resilient support layer 12 is arranged on internal layer；It is described micro-
The surface of hole thin-walled layer 11 is made covered with microcellular structure, the resilient support layer 12 using elastic material.
Fig. 3 is please referred to, Fig. 3 is the structure diagram of fixing device 2.The fixing device 2 includes Universal screw nail 21, indulges
To pitman 212；The Universal screw nail 21 is equipped with connector 211, structure type of the connector 211 for counterbore, the counterbore
Equipped with notch, and counterbore inner wall is equipped with internal thread；Longitudinally connected stick 212 is equipped in the notch；The longitudinally connected stick 212
Top be equipped with locked joints 212, locked joints 212 are equipped with external screw thread, which matches with the internal thread of counterbore；Institute
The longitudinally connected stick 212 stated is distributed in artificial 1 both sides of canalis spinalis ontology, and be equipped on pitman 22 longitudinally in each there are two being total to
At least two Universal screw nails 21.
Fig. 4 is please referred to, Fig. 4 is the structure diagram of lateral connector 3.The lateral connector 3 includes connecting plate 3,
One end of connecting plate 3 is equipped with protrusion 32, which is equipped with arc-shaped cavity 33, which matches with pitman；It is described
Locking screw 34 is additionally provided in protrusion 32, which is extruded in the side of longitudinally connected stick；The lateral connector 3
The both sides of artificial canalis spinalis ontology 1 are distributed in, and 3 one end of lateral connector is fixed on artificial canalis spinalis ontology 1, lateral connector 3
The other end be connected on the longitudinally connected stick 212 of fixing device 2.
The embodiment it should be noted that：In the embodiment, the canalis spinalis chamber that artificial 1 inside of canalis spinalis ontology is formed is circle,
Radius vector normal range (NR) is 14-15mm.Artificial canalis spinalis ontology 1 spinal cord in thoracic vertebrae section suitable for applying in the embodiment.
The artificial canalis spinalis ontology 1 is the form of laminate structure, and laminate structure can effectively save space, as far as possible for
Dural sac and spinal nerve reserve enough spaces；The artificial canalis spinalis ontology 1 includes micropore thin-walled layer 11 and resilient support
Layer 12, the microcellular structure of micropore thin-walled layer 11 can effectively prevent tumour cell and capilary from growing into artificial intraspinal tube and cause part
Compressing, while freely coming in and going out for water and electrolyte can be met again, the nutritional support of guarantee dural sac and nerve root；Resilient support
Layer 12 elastic construction during merging can interim plasticity, facilitate merging, reduced as far as possible to dural sac and spinal nerve
Harassing and wrecking, and can ensure its effective mechanical support effect.
The fixing device 2 includes Universal screw nail 21, and longitudinally connected stick 212, Universal screw nail 21 is to be placed in one by one
, fixed route is established between different Universal screw nails 21, operation is flexible, can cut off dura mater according to posterior spinal operation
Fixed route is established in the position of tumor tissues around capsule.Longitudinally connected stick 212 has both sides effect, on the one hand will be withered and fallen
Universal screw nail 21 be fixed together, fixed mode transition lines fixed form will be put, fixed effect is definite；On the other hand,
Tie point is provided for lateral connector 3, is fixed on longitudinally connected stick 212 so as to fulfill by artificial canalis spinalis ontology 1.
The connector 211 of the Universal screw nail 21 is the structure type of counterbore, and sets internal thread in counterbore inner wall, is somebody's turn to do
Internal thread matches convenient for the external screw thread on locked joints 212 so that locked joints 212 can be fixed on by way of spiral
Longitudinally connected stick 212, longitudinally connected stick 212 will not upper and lower plays.
The artificial canalis spinalis is fixed on by lateral connector 3 on longitudinally connected stick 212 in both sides, is achieved people
Work canalis spinalis ontology 1 is fixed, and can effectively resist the compressing of tumour, so as to which dural sac and spinal cord be protected not to be pressed by tumour
Compel, it is possible to effectively avoid adverse consequences caused by tumor recurrence.
The lateral connector 3 can avoid for longitudinally connected stick 212 and artificial canalis spinalis ontology 1 to be connected
Artificial 1 transverse shifting of canalis spinalis ontology.Lateral connector 3 is equipped with arc-shaped cavity 33, which is used for and longitudinally connected stick 212
Lateral surface mutually agree with, meanwhile, on lateral connector 3 be equipped with locking screw 34,34 side of locking screw be extruded in longitudinal direction connects
It takes over the baton on 212, so as to which lateral connector 3 and longitudinally connected stick 212 be locked, when locking screw 34 is extracted, with regard to energy
It unlocks, facilitates adjusting.
A kind of application method of artificial canalis spinalis for preventing spinal nerve from oppressing of the present invention is：During the phase of operation,
First, on the vertebra of cut-away area, 21 groups of two row Universal screw nail is squeezed into, establishes fixed route；By two longitudinally connected sticks 212
It is passed through from the notch of jointing, and by 212 precession of locked joints in jointing, so as to fixed longitudinally connected stick 212；
Then, between artificial canalis spinalis ontology 1 being placed in two longitudinally connected sticks 212, and the arc-shaped cavity 33 of lateral connector 3 is overlapped on
On longitudinally connected stick 212, after good position is determined, it is fixed by screwing in locking screw 34, wherein, artificial canalis spinalis sheet
Body 1 is set there are one openable interface 4 (as shown in Figure 5), can be placed in operation from the side of dural sac, around dural sac
Veutro finally connects fixed in rear side after wearing to dural sac other side.
Embodiment 2
Fig. 6 is please referred to, Fig. 4 is the artificial canalis spinalis structure diagram of embodiment 2.The present embodiment is substantially the same manner as Example 1,
The difference is that the artificial canalis spinalis ontology 1 in the present embodiment forms canalis spinalis chamber as triangle, radius vector normal range (NR) is
12-21mm.Artificial canalis spinalis ontology 1 spinal cord in cervical vertebra section suitable for applying in the present embodiment.
Embodiment 3
Fig. 7 is please referred to, Fig. 7 is the artificial canalis spinalis structure diagram of embodiment 3.It is basic with embodiment 1 in the present embodiment
It is identical, the difference is that, the canalis spinalis chamber that 1 inside of artificial canalis spinalis ontology in the present embodiment is formed is oval, and radius vector is just
Normal ranging from 15-25mm, average 16-17mm.Artificial lumbar segment of the canalis spinalis sheet suitable for spinal cord in the present embodiment, and in lumbar vertebrae
L1-2 positions at apply.
Embodiment 4
Fig. 8 is please referred to, Fig. 8 is the artificial canalis spinalis structure diagram of embodiment 4.The present embodiment is substantially the same manner as Example 1,
The difference is that the canalis spinalis chamber that 1 inside of artificial canalis spinalis ontology in the present embodiment is formed is triangle, transverse diameter normal range (NR)
For 20-30mm, average 20-21mm.Artificial lumbar segment of the canalis spinalis sheet suitable for spinal cord in the present embodiment, and in the L3-4 of lumbar vertebrae
It is applied at position.
Embodiment 5
Fig. 9 is please referred to, Fig. 9 is the artificial canalis spinalis structure diagram of embodiment 5.The present embodiment is substantially the same manner as Example 1,
The difference is that the canalis spinalis chamber that 1 inside of artificial canalis spinalis ontology in the present embodiment is formed is trilobal, transverse diameter ＜ 16mm.
Artificial lumbar segment of the canalis spinalis sheet suitable for spinal cord in the present embodiment, and applied at the L5 positions of lumbar vertebrae.
The artificial canalis spinalis of a kind of spinal nerve compressing of the present invention, according to the form of human spine different segment canalis spinalis and greatly
The small artificial canalis spinalis for designing suitable different segment, posterior spinal operation cut off the latter phase merging of tumor tissues around dural sac
It around the dural sac of corresponding segment, is finally fixed together using lateral connector 3 with fixing device 2 and reaches stable, support is made
With can be oppressed caused by dural sac, spinal nerve with 360 ° of effective prevention tumor recurrences and scar proliferation etc., can also avoid
Adhesion between surrounding cicatricial tissue and dural sac and nerve root；1 form for laminate structure of artificial canalis spinalis ontology, laminate structure
Space can be effectively saved, reserves enough spaces for dural sac and spinal nerve as far as possible；The micropore of artificial canalis spinalis ontology 1 is thin
The microcellular structure of parietal layer 11 can effectively prevent tumour cell and capilary from growing into artificial intraspinal tube and cause local compression, while again
Freely coming in and going out for water and electrolyte can be met, ensure the nutritional support of dural sac and nerve root；The elasticity of artificial canalis spinalis ontology 1
The elastic construction of supporting layer 12 during merging can interim plasticity, facilitate merging, reduced as far as possible to dural sac and spinal cord
The harassing and wrecking of nerve, and can ensure its effective mechanical support effect；The Universal screw nail 21 of fixing device 2 is to be placed in one by one
, fixed route is established between different Universal screw nails 21, operation is flexible, can cut off dura mater according to posterior spinal operation
Fixed route is established in the position of tumor tissues around capsule；The longitudinally connected stick 212 of fixing device 2 has both sides effect,
On the one hand withered and fallen Universal screw nail 21 is fixed together, fixed mode transition lines fixed form will be put, fixed effect is true
It cuts；On the other hand, tie point is provided for lateral connector 3, longitudinally connected stick is fixed on so as to fulfill by artificial canalis spinalis ontology 1
On 212；Equipped with lateral connector 3, lateral connector 3 is used to connect longitudinally connected stick 212 and artificial canalis spinalis ontology 1,
It can avoid artificial 1 transverse shifting of canalis spinalis ontology.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise of the method for the present invention is not departed from, can also make several improvement and supplement, these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (8)
1. a kind of artificial canalis spinalis for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis includes artificial canalis spinalis sheet
Body, lateral connector, fixing device；The artificial canalis spinalis ontology is established by lateral connector and fixing device and connected；
The artificial canalis spinalis ontology includes micropore thin-walled layer and resilient support layer；The micropore thin-walled layer is arranged on outer layer,
Resilient support layer is arranged on internal layer；The surface of the micropore thin-walled layer uses bullet covered with microcellular structure, the resilient support layer
Property material is made；
The fixing device includes Universal screw nail, longitudinally connected stick；The Universal screw nail is equipped with connector, and connector is
The structure type of counterbore, which is equipped with notch, and counterbore inner wall is equipped with internal thread；It is equipped in the notch longitudinally connected
Stick；The top of the longitudinally connected stick is equipped with locked joints, and locked joints are equipped with the interior spiral shell of external screw thread, the external screw thread and counterbore
Line matches；
The lateral connector includes connecting plate, and one end of connecting plate is equipped with protrusion, which is equipped with arc-shaped cavity, the arc
Chamber matches with pitman；Locking screw is additionally provided in the protrusion, which is extruded in the side of longitudinally connected stick.
2. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that described is longitudinally connected
There are two stick is common, artificial canalis spinalis ontology both sides are distributed in, and be equipped at least two Universal screw nails on pitman longitudinally in each.
3. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the lateral connection
Device is distributed in the both sides of artificial canalis spinalis ontology, and lateral connector one end is fixed on artificial canalis spinalis ontology, lateral connector
The other end is connected on the longitudinally connected stick of fixing device.
4. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis
The canalis spinalis chamber that body interior is formed is circle, and radius vector normal range (NR) is 14-15mm.
5. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis
Ontology forms canalis spinalis chamber as triangle, and radius vector normal range (NR) is 12-21mm.
6. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis
The canalis spinalis chamber that body interior is formed is oval, and radius vector normal range (NR) is 15-25mm, average 16-17mm.
7. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis
The canalis spinalis chamber that body interior is formed is triangle, and transverse diameter normal range (NR) is 20-30mm, average 20-21mm.
8. the artificial canalis spinalis according to claim 1 for preventing spinal nerve from oppressing, which is characterized in that the artificial canalis spinalis
The canalis spinalis chamber that body interior is formed is circle, and radius vector normal range (NR) is 14-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108992216A (en) * | 2018-07-18 | 2018-12-14 | 中国医学科学院北京协和医院 | Artificial neural plate and internal fixation device of spine |
| CN111297459A (en) * | 2020-03-18 | 2020-06-19 | 北京爱康宜诚医疗器材有限公司 | Vertebral plate assembly |
| CN112164027A (en) * | 2020-09-01 | 2021-01-01 | 联影智能医疗科技(北京)有限公司 | Spinal dural sac compression detection method, device and storage medium |
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| CN108261272B (en) | 2023-08-11 |
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