CN107669375A - Via Posterior Spinal Approach device - Google Patents
Via Posterior Spinal Approach device Download PDFInfo
- Publication number
- CN107669375A CN107669375A CN201711020503.5A CN201711020503A CN107669375A CN 107669375 A CN107669375 A CN 107669375A CN 201711020503 A CN201711020503 A CN 201711020503A CN 107669375 A CN107669375 A CN 107669375A
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- approach device
- posterior spinal
- via posterior
- spinal approach
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
Abstract
The invention provides a kind of Via Posterior Spinal Approach device, including：Connecting portion, connecting portion are used to be connected with screw-rod；Protection sleeve pipe, it is connected with connecting portion, the tube chamber for accommodating spinal cord is formed in protection sleeve pipe.The Via Posterior Spinal Approach device of the present invention is connected by connecting portion with screw-rod; so as to which Via Posterior Spinal Approach device is navigated into osteotomy site; protection sleeve pipe encases spinal cord; instead of being organized by vertebral arch of osteotomy etc.; canalis spinalis of the tube chamber equivalent to corpus vertebrae; so as to play the purpose of protection spinal cord, prevent its hetero-organization from growing into compressing spinal cord, reduce postoperative risk.
Description
Technical field
The present invention relates to medical instruments field, in particular to a kind of Via Posterior Spinal Approach device.
Background technology
The backbone of human body can be destroyed due to sufferer or external force influence, such as vertebral tumor, serious splintered fracture
And the infectious diseases such as tuberculosis, and may cause spinal cord, nervous lesion or occur vertebra section collapse and the angulation deformity of backbone,
Neurological dysfunction or the obvious person of angulation deformity often need row Vertebrae resection.
It is postoperative in vertebral resection, surrounding tissue meeting restoration ecosystem, and tumour and tuberculosis there is a possibility that to continue recurrence,
Surrounding tissue or pathological tissues are possible to grow into the position of protovertebra pipe, occupy the space of the tissues such as canalis spinalis nerve, cause postoperative
The symptom such as neurological dysfunction again, so as to result in the need for performing the operation again or revision procedure, or even exist and cause patient to paralyse
Risk.
The content of the invention
It is a primary object of the present invention to provide a kind of Via Posterior Spinal Approach device, to solve Vertebrae resection of the prior art
Spinal cord lacks the problem of protection afterwards.
To achieve these goals, the invention provides a kind of Via Posterior Spinal Approach device, including：Connecting portion, connecting portion are used for
It is connected with screw-rod；Protection sleeve pipe, it is connected with connecting portion, the tube chamber for accommodating spinal cord is formed in protection sleeve pipe.
Further, protection sleeve pipe includes：First set tube wall, one end are hinged with connecting portion；Second casing wall, one end and company
Socket part is hinged, one end of the remote connecting portion of first set tube wall and one end of the remote connecting portion of the second casing wall can separate with
The tube chamber of open tube chamber or docking to close.
Further, one end of the remote connecting portion of first set tube wall and one end point of the remote connecting portion of the second casing wall
During to extreme position, the angle of the opening of tube chamber is more than 90 degree.
Further, Via Posterior Spinal Approach device also includes connecting shaft, and the direction of connecting shaft and spinal cord be arranged in parallel, first sleeve
Wall and the second casing wall are by hinge with being connected axis connection.
Further, Via Posterior Spinal Approach device also includes lock pin, and lock pin is arranged in connecting shaft, for locking first set
Tube wall and the second casing wall.
Further, connecting shaft is located at the rear side of connecting portion, one end of the remote connecting portion of first set tube wall and second set
One end of the remote connecting portion of tube wall is docked in the front side of connecting portion, and resigning opening is offered on connecting portion, thinks first sleeve
Wall and the second casing wall are stepped down.
Further, one end of the remote connecting portion of one end of the remote connecting portion of first set tube wall and the second casing wall exists
The front side docking of connecting portion；Via Posterior Spinal Approach device also includes：The first in command, be arranged on connecting portion rear side and with first set tube wall
Connection；The second in command, it is arranged on the rear side of connecting portion and is connected with the second casing wall.
Further, connecting portion includes：Main body, plate-like, protection sleeve pipe is connected with main body；Multiple grapples, are set respectively
At the both sides of the edge of main body, for being connected with screw-rod.
Further, main body is curved, the bending of the rear side of the middle part direction of main body, the radian at the middle part of main body and tube chamber
Radian is adapted.
Further, at least a portion of at least a portion of connecting portion and/or protection sleeve pipe is in trabecular bone structure.
The Via Posterior Spinal Approach device of the present invention is connected by connecting portion with screw-rod, so as to which Via Posterior Spinal Approach device be navigated to
Osteotomy site, protection sleeve pipe encase spinal cord, instead of by vertebral arch of osteotomy etc. organize, tube chamber equivalent to corpus vertebrae canalis spinalis, from
And the purpose of protection spinal cord is played, prevent that its hetero-organization from growing into compressing spinal cord, reduce postoperative risk.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the schematic perspective view of the embodiment of the Via Posterior Spinal Approach device according to the present invention；
Fig. 2 shows the axial schematic diagram of the embodiment of the Via Posterior Spinal Approach device according to the present invention；
Fig. 3 shows the side schematic view of the spinal tissues of the Via Posterior Spinal Approach device with the present invention；And
Fig. 4 shows the positive schematic diagram of the spinal tissues of the Via Posterior Spinal Approach device with the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, main body；11st, grapple；12nd, step down and be open；21st, first set tube wall；22nd, the second casing wall；23rd, the first in command；
24th, the second in command；30th, connecting shaft；100th, screw-rod；200th, tube chamber.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
The invention provides a kind of Via Posterior Spinal Approach device, and as shown in Figures 1 to 4, the Via Posterior Spinal Approach device includes：Connection
Portion, connecting portion are used to be connected with screw-rod 100；Protection sleeve pipe, it is connected, is formed in protection sleeve pipe for accommodating ridge with connecting portion
The tube chamber 200 of marrow.
The Via Posterior Spinal Approach device of the present invention is connected by connecting portion with screw-rod 100, so as to which Via Posterior Spinal Approach device be determined
Osteotomy site is arrived in position, and protection sleeve pipe encases spinal cord, and instead of being organized by vertebral arch of osteotomy etc., tube chamber 200 is equivalent to corpus vertebrae
Canalis spinalis, so as to play the purpose of protection spinal cord, prevent its hetero-organization from growing into compressing spinal cord, reduce postoperative risk.
Preferably, the inwall of tube chamber 200 is smooth surface, that is, carries out high polishing processing, can form the protection to canalis spinalis,
And can reduces the adhesion of soft tissue.
Preferably, protection sleeve pipe includes：First set tube wall 21, one end is hinged with connecting portion；Second casing wall 22, one end with
Connecting portion is hinged, and one end of one end of the remote connecting portion of first set tube wall 21 and the remote connecting portion of the second casing wall 22 can
Separate to open the tube chamber 200 of tube chamber 200 or docking to close.
It is highly preferred that one end of the remote connecting portion of first set tube wall 21 and the one of the remote connecting portion of the second casing wall 22
When end separation is to extreme position, the angle of the opening of tube chamber 200 is more than 90 degree.
The angle of the opening of tube chamber 200 is preferably more than 120 degree, so as to be when installing Via Posterior Spinal Approach device
Spinal cord is stepped down so that spinal cord smoothly enters tube chamber 200.
Preferably, the axial cross section of first set tube wall 21 is in semicircular arc, and the axial cross section of the second casing wall 22 is in and the
A set of 21 symmetrical semicircular arc of tube wall.
Preferably, Via Posterior Spinal Approach device also includes connecting shaft 30, and connecting shaft 30 and the direction of spinal cord be arranged in parallel, first set
Tube wall 21 is connected with the second casing wall 22 by hinge with connecting shaft 30.
Embodiment as depicted in figs. 1 and 2, axis hole is provided with the casing wall 22 of first set tube wall 21 and second, connect
Axle 30, which is located in axis hole, forms hinge arrangement, so that the casing wall 22 of first set tube wall 21 and second can be around connecting shaft
30 rotate.
Preferably, Via Posterior Spinal Approach device also includes lock pin, and lock pin is arranged in connecting shaft 30, for locking first set
The casing wall 22 of tube wall 21 and second.Lock pin has lock-out state and released state, when the casing wall of first set tube wall 21 and second
After 22 closures are so as to close tube chamber 200, lock pin switches to lock-out state, to lock the casing wall of first set tube wall 21 and second
22。
Preferably, connecting shaft 30 is located at the rear side of connecting portion, one end and second of the remote connecting portion of first set tube wall 21
One end of the remote connecting portion of casing wall 22 is docked in the front side of connecting portion, and resigning opening 12 is offered on connecting portion, thinks the
A set of casing wall 22 of tube wall 21 and second is stepped down.
As shown in figure 1, opening 12 of stepping down is rectangular, and resigning first set is set respectively on the left side of connecting shaft 30 and right side
The resigning opening 12 of the casing wall 22 of tube wall 21 and second, when the casing wall 22 of first set tube wall 21 or second is in an open position,
A part for first set tube wall 21 or a part for the second casing wall 22 be located at or through step down opening 12.
Preferably, one end of the remote connecting portion of one end of the remote connecting portion of first set tube wall 21 and the second casing wall 22
Docked in the front side of connecting portion；Via Posterior Spinal Approach device also includes：The first in command 23, are arranged on the rear side and and first set of connecting portion
Tube wall 21 connects；The second in command 24, are arranged on the rear side of connecting portion and are connected with the second casing wall 22.
In the embodiment shown in Fig. 1 and Fig. 2, the first in command 23 is located at the two of connecting shaft 30 respectively with first set tube wall 21
Side, the casing wall 22 of the second in command 24 and second respectively be located at connecting shaft 30 both sides, and the first in command 23, first set tube wall 21,
The casing wall 22 of the second in command 24 and second collectively forms butterfly clamping structure.
It is highly preferred that the size of the second in command 24 is bigger than the size of the first in command 23, and also opened up on the second in command 24
There is the resigning hole of the resigning first in command 23, so as to increase the open angle of the casing wall 22 of first set tube wall 21 and second.
Preferably, connecting portion includes：Main body 10, plate-like, protection sleeve pipe is connected with main body 10；Multiple grapples 11, respectively
It is arranged at the both sides of the edge of main body 10, for being connected with screw-rod 100.
In the embodiment as shown in Fig. 1 and Fig. 2,4 grapples 11, grapple 11 and main body are symmetrically provided with main body 10
10 lateral end panel connection, and it is directed away from the direction extension of spinal cord.
It is highly preferred that main body 10 is curved, the rear side bending of the middle part direction of main body 10, the radian at the middle part of main body 10 with
The radian of tube chamber 200 is adapted.
As shown in Fig. 2 the axial cross section of main body 10 is arched, this natural torsion causes main body 10 to have and corpus vertebrae
The camber line being adapted, belong to dissection engineering design.
Preferably, at least a portion of at least a portion of connecting portion and/or protection sleeve pipe is in trabecular bone structure.
It is highly preferred that the back side of main body 10 is trabecular bone structure, so that main body 10 can promote as the bone bed of bone grafting
Enter Bone Ingrowth, to form stable fixed effect at a specified future date.
Trabecular bone structure be it is a kind of be easy to the microcellular structure that osteocyte is grown into, the microcellular structure is a kind of interconnected more
To micro hole structure, pore diameter is 500 μm to 1000 μm, it is therefore preferable to 800 μm.The hole is advantageous to osteocyte and creeped length
Enter so that with physiology bone structure bone fusion occurs for the faying face of the trabecular bone structure of postoperative centrum prosthese to reach steady in a long-term.
The centrum prosthese of the present invention is made of medical metal, and medical metal includes but is not limited to titanium or titanium alloy, cobalt
Alloy, stainless steel and tantalum metal, magnesium alloy etc., this metalloid material has regulation in ISO-5830 series international standards,
The practice that its biocompatibility has obtained both at home and abroad the application of orthopaedics implantation for many years confirms.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that embodiments of the present invention described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. Via Posterior Spinal Approach device, it is characterised in that including：Connecting portion, the connecting portion are used to be connected with screw-rod (100)；Protection sleeve pipe, it is connected with the connecting portion, the tube chamber (200) for accommodating spinal cord is formed in the protection sleeve pipe.
- 2. Via Posterior Spinal Approach device according to claim 1, it is characterised in that the protection sleeve pipe includes：First set tube wall (21), one end are hinged with the connecting portion；Second casing wall (22), one end are hinged with the connecting portion, the remote connecting portion of the first set tube wall (21) One end can be separated with the opening tube chamber (200) or right with one end of the remote connecting portion of second casing wall (22) Connect with the tube chamber of closure (200).
- 3. Via Posterior Spinal Approach device according to claim 2, it is characterised in that the first set tube wall (21) away from described When one end of connecting portion is separated to extreme position with one end of the remote connecting portion of second casing wall (22), the pipe The angle of the opening of chamber (200) is more than 90 degree.
- 4. Via Posterior Spinal Approach device according to claim 2, it is characterised in that the Via Posterior Spinal Approach device also includes connecting shaft (30), the connecting shaft (30) and the direction of the spinal cord be arranged in parallel, the first set tube wall (21) and second sleeve pipe Wall (22) is connected by hinge with the connecting shaft (30).
- 5. Via Posterior Spinal Approach device according to claim 4, it is characterised in that the Via Posterior Spinal Approach device also includes locking Pin, the lock pin is arranged in the connecting shaft (30), for locking the first set tube wall (21) and second sleeve pipe Wall (22).
- 6. Via Posterior Spinal Approach device according to claim 4, it is characterised in that the connecting shaft (30) is located at the connecting portion Rear side, one end of the remote connecting portion of the first set tube wall (21) and second casing wall (22) away from described One end of connecting portion is docked in the front side of the connecting portion, and resigning opening (12) is offered on the connecting portion, thinks described the A set of tube wall (21) and second casing wall (22) are stepped down.
- 7. Via Posterior Spinal Approach device according to claim 2, it is characterised in that the first set tube wall (21) away from described Docked in the front side of the connecting portion one end of the remote connecting portion of one end of connecting portion and second casing wall (22)； The Via Posterior Spinal Approach device also includes：The first in command (23), it is arranged on the rear side of the connecting portion and is connected with the first set tube wall (21)；The second in command (24), it is arranged on the rear side of the connecting portion and is connected with second casing wall (22).
- 8. Via Posterior Spinal Approach device according to claim 1, it is characterised in that the connecting portion includes：Main body (10), plate-like, the protection sleeve pipe is connected with the main body (10)；Multiple grapples (11), are separately positioned at the both sides of the edge of the main body (10), for connecting with the screw-rod (100) Connect.
- 9. Via Posterior Spinal Approach device according to claim 8, it is characterised in that the main body (10) is curved, the main body (10) the rear side bending of middle part direction, the radian at the middle part of the main body (10) are adapted with the radian of the tube chamber (200).
- 10. Via Posterior Spinal Approach device according to any one of claim 1 to 9, it is characterised in that the connecting portion is at least At least a portion of a part of and/or described protection sleeve pipe is in trabecular bone structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020503.5A CN107669375B (en) | 2017-10-26 | 2017-10-26 | Spinal posterior device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020503.5A CN107669375B (en) | 2017-10-26 | 2017-10-26 | Spinal posterior device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107669375A true CN107669375A (en) | 2018-02-09 |
| CN107669375B CN107669375B (en) | 2023-09-12 |
Family
ID=61142550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711020503.5A Active CN107669375B (en) | 2017-10-26 | 2017-10-26 | Spinal posterior device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107669375B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141405A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Upper cervical spine artificial vertebral body and upper cervical spine implanting device |
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| DE4434574A1 (en) * | 1994-09-28 | 1996-04-04 | Ulrich Heinrich | Implant for spinal correction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141405A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Upper cervical spine artificial vertebral body and upper cervical spine implanting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107669375B (en) | 2023-09-12 |
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