CN204600657U - The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants plate - Google Patents
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants plate Download PDFInfo
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- CN204600657U CN204600657U CN201520189883.5U CN201520189883U CN204600657U CN 204600657 U CN204600657 U CN 204600657U CN 201520189883 U CN201520189883 U CN 201520189883U CN 204600657 U CN204600657 U CN 204600657U
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Abstract
This utility model is that Pedicle Screw Placement in Lower Cervical (the neck 2-neck 7) guiding that a kind of 3D prints implants plate, this implantation plate is printed by 3D printing technique, comprising one or a few blocks guide plate, being arranged at one on guide plate or several Pedicle Screw Placement in Lower Cervical guide pin road and one or several spinous process hole for inserting spinous process; Described guide plate top is a plane, and bottom is curved surface and oppositely consistent with vertebral plate; Guide plate upper plane extends to and after the outlet of upper plane, extends 2-5mm into Ding Ding road again.When guide plate number is polylith, between guide plate, be provided with connecting elements.Another for ensureing the locking pin that stability that guiding implants plate arranges number and do not wait on guide plate, other in spinous process hole fixation clamp is set.This utility model is simple and reasonable, easy to use, effectively for Pedicle Screw Placement in Lower Cervical provides individuation to enter nail guiding duct, can ensure the accuracy into nail, reduce the difficulty of operation and the risk of operation.
Description
Technical field
This utility model belongs to cervical posterior approach introductory medical apparatus and instruments, is particularly related to the Pedicle Screw Placement in Lower Cervical guiding implantation plate that 3D prints.
Background technology
The biomechanical stability that Pedicle Screw Placement in Lower Cervical is fixed is better than other various technique for fixing of cervical vertebra, even exceed the stability that front road titanium plate+way of escape lateral mass is fixing, it is the desirable fixing means corrected cervical kyphosis, carry out the cervical spondylosis such as the fixing fusion of cervical vertebra and treatment fracture-dislocation of cervical spine.But pedicle for cervical vertebra arch is not only tiny but also be in the narrow space that surrounding formed by vertebral artery, spinal cord and upper and lower nerve root, what make pedicle screw inserts difficulty increase all corresponding to danger.Free-hand nail method of putting conventional at present puts nail method according to the free-hand of anatomic landmark.The free-hand key inserting Pedicle Screw Placement in Lower Cervical is to enter to follow closely point accurately, enters to follow closely feel and position, side perspective in direction, art exactly, but the irreversibilities such as spinal cord and nerve roots damage and vertebral artery injuries may be caused after error to damage even threat to life, high to the technical requirement of doctor.The auxiliary method for posting of research Pedicle Screw Placement in Lower Cervical has important clinical meaning.
Along with the progress of 3D printing technique, at medical domain, people attempt mode reverse engineering combined with 3D printing technique, the equipment such as CT or nuclear magnetic resonance, NMR (MRI) is utilized to gather the shape data at the positions such as human organ, skeleton, joint, reconstruction of three-dimensional digital model, then with 3D printing type manufacture teaching and referential model of performing the operation, be usually used in helping manufacture artificial limb or carry out surgical repair.Utilize this kind of mode to prepare pedicle screw guiding die plate also not very universal, the guiding die plate for Pedicle Screw Placement in Lower Cervical does not have and relates to.And prior art exists and is used for pedicle screw to enter the device of nail guiding irregular and wall is thin, without fixture after placing, easily rock, and only carry out leading into nail for one piece of vertebral body, needs to continuous polylith vertebral body enter nail fix time, also there is irrational place.
This utility model does not have Pedicle Screw Placement in Lower Cervical accurately to enter the problem of the guider of nail guiding for prior art, there is provided a kind of rational in infrastructure, use simple, can very well for pedicle screw leads, and effectively can enter nail guiding to 1 piece to polylith vertebral body, and the guiding die plate entering nail guiding to bilateral or pleurocentrum can be realized.
Utility model content
Well nail guiding can not be entered to Pedicle Screw Placement in Lower Cervical in order to overcome existing technology, the problem that can not lead to polylith cervical vertebral body, the purpose of this utility model is to provide cervical vertebra (neck 2-neck 7) the pedicle screw guiding implantation plate that a kind of 3D that can solve the problem prints.
The purpose of this utility model is achieved through the following technical solutions:
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants a plate, comprises one or a few blocks guide plate, one or several pedicle screw guide pin road be arranged on guide plate, described guide plate is also arranged one or several spinous process hole; Described guide plate top is a plane, and bottom guide plate, curved surface and vertebral plate are oppositely consistent; Guide plate upper plane extends to pedicle screw guide pin road and extend several millimeter again behind the exit of upper plane; It is oppositely consistent that direction, pedicle screw guide pin road and pedicle screw enter direction, Ding Ding road, and axis, pedicle screw guide pin road is through entering the entry point in Ding Ding road; Between polylith guide plate, connecting elements is set.Spinous process hole is used for the insertion of spinous process.Pedicle screw guide pin road provides into nail guide channel for pedicle screw, pedicle screw can be made accurately to enter pedicle of vertebral arch, prevent the fracture of pedicle of vertebral arch; The plane on guide plate top can make operation technique be more prone to.
Further, the guide plate number described in such scheme is set to one or more mode,
Guide plate number is the technical scheme of a piece:
Further, described guide plate can cover the continuous cervical vertebra plate of 1-6 block (neck 2-neck 7), can realize the object of simultaneously performing the operation to continuous multiple cervical vertebra.
Further, described guide plate is arranged the pedicle screw guide pin road corresponding with covering vertebral plate number and spinous process hole.Described spinous process hole is arranged on guide plate central authorities, arranges 1-6 spinous process hole; Described pedicle screw guide pin road is arranged on guide plate both sides, arranges 1-6 to pedicle screw guide pin road, can realize the object led to the multiple Pedicle Screw Placement in Lower Cervical of bilateral.
Or described spinous process hole is arranged on guide plate side, 1-6 spinous process hole is set; Described pedicle screw guide pin road is arranged at the opposite side of guide plate, arranges 1-6 pedicle screw guide pin road, can realize the object that one-sided boil on the nape opposite the mouth vertebral body pedicle screw carries out leading.
Technical scheme when guide plate number is polylith is:
Further, described guide plate number arranges 1-6 block, and each guide plate can cover one piece of vertebral body, each guide plate is arranged one or a pair pedicle screw guide pin road and a spinous process hole, has been provided with the connecting elements of interconnect function between two guide plates.
Further, described spinous process hole is positioned at each guide plate central authorities, and each guide plate is arranged 1 to described pedicle screw guide pin road, described pedicle screw guide pin road is arranged on guide plate both sides; Or described spinous process hole is positioned at each guide plate side, each guide plate is arranged 1 described pedicle screw guide pin road, described pedicle screw guide pin road is arranged at the opposite side of guide plate.
Further, described connecting elements for connecting two adjacent guide plates, connecting elements scalable, the position of each vertebral plate that more easily coincide when making operation.
Further, connecting elements comprises and is arranged at the connecting hole on guide plate and the syndeton between guide plate, syndeton is to play arbitrarily the material of interconnect function, wherein be preferably soft steel bar or nylon rope, this arranges the distance that can regulate between guide plate, angle also between adjustable guide plate, applies convenient during operation.
On the plan of establishment basis of above-mentioned one piece of guide plate and several piece guide plate, optimize utility model scheme further:
Further, described bottom curved surface is oppositely consistent with cervical vertebra plate, and curved surface is oppositely unanimously outside side plate.
Further, described spinous process hole shape and spinous process form fit, the internal diameter in spinous process hole is consistent with the external diameter of spinous process, and spinous process hole is effectively enclosed within spinous process.
Further, the distance of described guide plate upper plane and bottom curved surface peak is 3-5mm.
Further, guide plate is also arranged one or several staple, staple arranges different numbers because guide plate varies in size, guide plate arranges 2-4 root staple when can cover one piece of vertebral plate, guide plate arranges 4-8 root staple when can cover 2 pieces or 3 pieces of vertebral plate sizes, staple is arranged on the position in pedicle screw guide pin road, and guide plate middle edge position.Arranging of staple effectively can ensure that guide plate coincide and stability on vertebral body.
Further, described spinous process hole site is provided with spinous process fixation clamp, and fixation clamp is elastic fixing clip, can in use tightly clamp spinous process, guide plate and vertebral plate are fitted more, stable.
Further, position, described pedicle screw guide pin road is provided with nail road buckle, and buckle controls the center that screw is in nail road, and the screw of scalable different size is accurately by pedicle screw guide pin road.
The preparation method that the invention also discloses the Pedicle Screw Placement in Lower Cervical guiding implantation plate that described 3D prints is,
Step 1: the initial data being obtained cervical vertebra motion segment (neck 2-neck 7) by the scanning technique such as thin-layer CT or nuclear magnetic resonance, NMR;
Step 2: utilize three-dimensional reconstruction software, set up the threedimensional model of cervical vertebral body and adnexa, and pedicle screw is entered to the entry point (C2: lateral mass mid point in Ding Ding road, C3-6: near the mid point of the outside upper quadrant of lateral mass, C7: 2mm above lateral mass mid point, partially outside about 1mm), enter to follow closely direction and spinous process external diameter carries out three dimensional analysis;
Step 3: to the threedimensional model of vertebral body, enter Ding Ding road entry point and enter to follow closely direction and carry out reverse matching, form a fitting surface coincide with vertebral body, it have pedicle screw guide pin road junction and spinous process aperture;
Step 4: curved surface is oppositely thickened, each point is made to thicken in a plane, pedicle screw guide pin road junction oppositely extends along entering to follow closely direction, another opening is formed in the plane, spinous process aperture extends along spinous process size, form another spinous process aperture in the plane, set up the threedimensional model that pedicle screw guiding implants plate;
Step 5: three-dimensional modeling data guiding being implanted plate imports 3D printer, loads printed material, prints guiding and implants plate.
Further, the setting selected different entry points and enter to follow closely direction is accustomed in the described Ding Ding of entering road according to operation needs or doctor at the entry point of cervical posterior approach, wherein be preferably entry point---C2: lateral mass mid point, C3-6: near the mid point of the outside upper quadrant of lateral mass, C7: 2mm, partially outside about 1mm above lateral mass mid point; Inserting needle direction---with the angle (C2:25 °, C3-7:0 ° ±) of the upper soleplate of vertebral body, in the angle (leaning angle-C2:25 °, C3-6:45 °, C7:40 °) of horizontal plane.
Further, the fitting surface described in described method step 3 is bottom spinous process place matching to spinous process.
Further, the plan range curved surface peak that each point described in described method step 4 thickens is 2-5mm.
During use, after decompression or sham operated time, implantation plate is placed on corresponding vertebral plate, is holed on lateral mass by pedicle screw guide pin road, boring terminate after taking off guiding implant plate, the use of complete twin installation.
Compared with prior art, the beneficial effects of the utility model are: it is better, more stable with vertebral plate fitness that the arranging of spinous process hole can make guiding implant when plate uses, and during matching without matching to spinous process top, minimizing matching difficulty; Implant the setting of plate and reach guiding to different number and not homonymy pedicle screw; The setting of guide plate upper plane, makes operation more easily simple; The setting of staple and spinous process fixation clamp can make device use more stable; Pedicle screw guide pin road buckle the accuracy that can effectively ensure into nail direction is set; Convenient adjustment when the setting of syndeton makes operation, can give the matching of every block vertebral plate faster.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 1 structural representation;
Fig. 2 this utility model embodiment 2 structural representation;
Fig. 3 this utility model embodiment 3 structural representation;
Fig. 4 this utility model embodiment 4 structural representation;
Fig. 5 this utility model embodiment 5 structural representation;
Fig. 6 this utility model embodiment 6 structural representation;
In figure, 1, guide plate; 11, guide plate upper plane; 12, curved surface bottom guide plate; 2, pedicle screw guide pin road; 3, spinous process hole; 31, fixation clamp; 4, staple; 51, connecting hole; 52, soft metal bar.
Detailed description of the invention
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 1 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants a plate, comprises an entity guide plate 1, and the large I of guide plate 1 covers 1 cervical vertebra plate; 1 is arranged at the pedicle screw guide pin road 2 on guide plate 1, guide plate 1 is also arranged 1 spinous process hole 3; Spinous process hole 3 is positioned at guide plate 1 side, pedicle screw guide pin road 2 is arranged at the opposite side of guide plate 1, it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate 1 top is a plane 11, and bottom guide plate 1, curved surface 12 is oppositely consistent with operation vertebral plate.After guide plate 1 upper plane 11 side extends to exit, pedicle screw guide pin road 2, then the 5mm that stretches out.Side is to the opposite side of spinous process, and guide plate upper plane 11 is corresponding with bottom curved surface 12 position.Spinous process hole 3 shape is consistent with spinous process shape, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 can effectively be enclosed within spinous process.Guide plate 1 upper plane 11 is 3mm with the distance of bottom curved surface 12 peak.The material of guide plate 1 is medical resin.
During use, after decompression or sham operated time, guide plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 2 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants a plate, comprises an entity guide plate 1, and the large I of guide plate 1 covers 1 cervical vertebra cervical vertebra plate; 2 are arranged at the pedicle screw guide pin road 2 on guide plate 1, guide plate 1 are also arranged 1 spinous process hole 3; Spinous process hole 3 is positioned at guide plate 1 central authorities, and 2 pedicle screw guide pin roads 2 are arranged on guide plate 1 both sides, and it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate 1 top is a plane 11, and bottom guide plate 1, curved surface 12 can be oppositely consistent with operation vertebral plate; Bottom guide plate 1 outside the lateral mass of curved surface 12 to both sides, pedicle screw guide pin road, guide plate 1 upper plane 11 to both sides 2 is behind upper plane 11 exit, then the 4mm that stretches out.Spinous process hole 3 shape is consistent with spinous process shape, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 is effectively enclosed within spinous process.Guide plate 1 upper plane 11 is 4mm with the distance of bottom curved surface 12 peak.Guide plate 1 also being arranged 4 staples 4,2 is arranged on the position in pedicle screw guide pin road 2,2 guide plate 1 middle edge positions.Arranging of staple 4 effectively can ensure that guide plate 1 coincide and stability on cervical vertebra plate.The material of guide plate 1 is medical resin.
During use, after decompression or sham operated time, implantation plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 3 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants a plate, comprises an entity guide plate 1, and the large I of guide plate 1 covers three cervical vertebra plates; 3 are arranged at the pedicle screw guide pin road 2 on guide plate 1, guide plate 1 are also arranged 3 spinous process holes 3; Spinous process hole 3 is positioned at guide plate 1 side, pedicle screw guide pin road 2 is arranged at the opposite side of guide plate 1, it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate 1 top is a plane 11, and bottom guide plate 1, curved surface 12 is oppositely consistent with operation vertebral plate; Bottom guide plate 1 outside curved surface 12 side to lateral mass, side is to the opposite side of spinous process.Guide plate 1 upper plane 11 side then extends to nail road behind the exit, pedicle screw guide pin road 2 of upper plane 11, then the 5mm that stretches out, and side is to the opposite side of spinous process.Spinous process hole 3 shape is consistent with corresponding spinous process shape respectively, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 can effectively be enclosed within spinous process.Guide plate 1 upper plane 11 is 3mm with the distance of bottom curved surface 12 peak.The material of guide plate 1 is medical resin.Guide plate 1 also being arranged 6 staples 4,3 is arranged on the position in corresponding pedicle screw guide pin road 2, and 3 are arranged on side, corresponding spinous process hole 3.Arranging of staple 4 effectively can ensure that guide plate 1 coincide and stability on cervical vertebra plate.Position, each spinous process hole 3 is provided with spinous process fixation clamp 31, and fixation clamp 31 is elastic fixing clip 31, can in use tightly clamp spinous process, guide plate 1 and cervical vertebra plate are fitted more, stable.
During use, after decompression or sham operated time, implantation plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 4 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants a plate, comprises an entity guide plate 1, and the large I of guide plate 1 covers 3 cervical vertebra plates; 6 are arranged at the pedicle screw guide pin road 2 on guide plate 1, guide plate 1 are also arranged 3 spinous process holes 3; Spinous process hole 3 is positioned at guide plate 1 central authorities, and 6 pedicle screw guide pin roads 2 are arranged on guide plate 1 both sides, and it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate 1 top is a plane 11, bottom guide plate 1 curved surface 12 can with operation vertebral plate reverse matching; Bottom guide plate 1 outside the lateral mass of curved surface 12 to both sides, pedicle screw guide pin road, guide plate 1 upper plane 11 to both sides 2 is behind upper plane 11 exit, then the 4mm that stretches out.Spinous process hole 3 shape is consistent with spinous process shape, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 is effectively enclosed within spinous process.Guide plate 1 upper plane 11 is 4mm with the distance of bottom curved surface 12 peak.Guide plate 1 also being arranged 8 staples 4,6 is arranged on the position in corresponding pedicle screw guide pin road 2,2 guide plate 1 middle edge positions.Arranging of staple 4 effectively can ensure that guide plate 1 coincide and stability on cervical vertebra plate.Position, spinous process hole 3 is provided with spinous process fixation clamp 31, and fixation clamp 31 is elastic fixing clip 31, can in use tightly clamp spinous process, guide plate 1 and cervical vertebra plate are fitted more, stable.Position, pedicle screw guide pin road 2 is provided with pedicle screw guide pin road 2 buckle, and buckle controls the center that screw is in nail road, and the screw of scalable different size is accurately by pedicle screw guide pin road 2.The material of guide plate 1 is medical resin.
During use, after decompression or sham operated time, implantation plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 5 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that a kind of 3D prints implants plate, comprise 6 pieces of guide plates 1, each guide plate 1 is arranged a spinous process hole 3 and a pedicle screw guide pin road 2, spinous process hole 3 is positioned at guide plate 1 side, pedicle screw guide pin road 2 is arranged at the opposite side of guide plate 1, it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate side is provided with connecting hole, arranges and connect soft metal bar in connecting hole; Guide plate 1 top is a plane 11, bottom guide plate 1 curved surface 12 can with operation vertebral plate reverse matching; Bottom guide plate 1, curved surface 12 side extends to outside lateral mass, and side extends to by spinous process, and guide plate 1 upper plane 11 side extends to pedicle screw guide pin road 2 behind upper plane 11 exit, then the 4mm that stretches out, and opposite side extends to by spinous process.Spinous process hole 3 shape is consistent with spinous process shape, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 is effectively enclosed within spinous process.Guide plate 1 upper plane 11 is 4mm with the distance of bottom curved surface 12 peak.Each guide plate 1 being arranged 2 staples 4, is arranged on the position in corresponding pedicle screw guide pin road 2, and one is arranged on side, spinous process hole.Arranging of staple 4 effectively can ensure that guide plate 1 coincide and stability on cervical vertebra plate.Position, spinous process hole 3 is provided with spinous process fixation clamp 31, and fixation clamp 31 is elastic fixing clip 31, can in use tightly clamp spinous process, guide plate 1 and cervical vertebra plate are fitted more, stable.Position, pedicle screw guide pin road 2 is provided with pedicle screw guide pin road 2 buckle, and buckle controls the center that screw is in nail road, and the screw of scalable different size is accurately by pedicle screw guide pin road 2.The material of guide plate 1 is medical resin.
During use, after decompression or sham operated time, implantation plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 6 3D prints implants plate structure
The Pedicle Screw Placement in Lower Cervical guiding that a kind of 3D prints implants plate, comprise 6 pieces of guide plates 1, each guide plate 1 is arranged a spinous process hole 3 and a pair pedicle screw guide pin road 2, spinous process hole 3 is positioned at guide plate 1 central authorities, pedicle screw guide pin road 2 is arranged on guide plate 1 both sides, it is consistent that direction, pedicle screw guide pin road 2 and pedicle screw enter direction, Ding Ding road, and by pedicle screw guide pin road 2, screw accurately can enter pedicle of vertebral arch.Guide plate side is provided with connecting hole, arranges and connect soft metal bar in connecting hole; Guide plate 1 top is a plane 11, bottom guide plate 1 curved surface 12 can with operation vertebral plate reverse matching; Bottom guide plate 1, curved surface 12 extends to outside the lateral mass of both sides, and guide plate 1 upper plane 11 extends to pedicle screw guide pin road, both sides 2 behind upper plane 11 exit, then the 4mm that stretches out.Spinous process hole 3 shape is consistent with spinous process shape, and the internal diameter in spinous process hole 3 moves consistent with the external diameter of spinous process, and spinous process hole 3 is effectively enclosed within spinous process.Guide plate 1 upper plane 11 is 4mm with the distance of bottom curved surface 12 peak.Guide plate 1 also being arranged 8 staples 4,6 is arranged on the position in corresponding pedicle screw guide pin road 2,2 guide plate 1 middle edge positions.Arranging of staple 4 effectively can ensure that guide plate 1 coincide and stability on cervical vertebra plate.Position, spinous process hole 3 is provided with spinous process fixation clamp 31, and fixation clamp 31 is elastic fixing clip 31, can in use tightly clamp spinous process, guide plate 1 and cervical vertebra plate are fitted more, stable.Position, pedicle screw guide pin road 2 is provided with pedicle screw guide pin road 2 buckle, and buckle controls the center that screw is in nail road, and the screw of scalable different size is accurately by pedicle screw guide pin road 2.The material of guide plate 1 is medical resin.
During use, after decompression or sham operated time, implantation plate is placed on corresponding cervical vertebra plate, is holed on cervical lateral mass by pedicle screw guide pin road 2, boring terminate after taking off guiding implant plate, the use of complete twin installation.
The Pedicle Screw Placement in Lower Cervical guiding that embodiment 7 3D prints implants the preparation method of plate
The preparation method that the Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants plate is,
Step 1: the initial data being obtained patients with cervical motion segment (neck 2-neck 7) by the scanning technique such as CT or nuclear magnetic resonance, NMR;
Step 2: utilize three-dimensional reconstruction software, sets up the threedimensional model of Cervical 2-neck 7 vertebral body and adnexa, and to pedicle screw enter Ding Ding road entry point, enter to follow closely direction and spinous process external diameter carries out three dimensional analysis;
Step 3: to the threedimensional model of vertebral body, enter Ding Ding road entry point and enter to follow closely direction and carry out reverse matching, form a fitting surface 12 coincide with Cervical 2-neck 7 vertebral plate, it have 2 mouthfuls, pedicle screw guide pin road and 3 mouthfuls, spinous process hole; Fitting surface 12 is bottom spinous process place matching to spinous process.
Step 4: pedicle screw guide pin road junction oppositely extends along entering to follow closely direction, and another opening is formed in plane 11, spinous process aperture extends along spinous process size, forms another spinous process aperture in the plane, sets up the threedimensional model that pedicle screw guiding implants plate; Plane 11 Distance surface 12 peak that each point thickens is 2-5mm.
Step 5: three-dimensional modeling data guiding being implanted plate imports 3D printer, loads medical resin printed material, prints guiding and implants plate.
Print pedicle screw guiding implant plate perform the operation altogether or sham operated time use.
The explanation of above-described embodiment is just for understanding this utility model.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from this utility model principle, can also carry out some improvement to this utility model, these improvement also will fall in the protection domain of this utility model claim.
Claims (10)
1. the Pedicle Screw Placement in Lower Cervical guiding of a 3D printing implants plate, comprise one or a few blocks guide plate (1), one or several is arranged at the Pedicle Screw Placement in Lower Cervical guide pin road (2) on guide plate (1), guide plate (1) is also arranged one or several spinous process hole (3) for inserting spinous process; Described guide plate (1) top is a plane (11), and bottom guide plate, curved surface and vertebral plate are oppositely consistent; Guide plate (1) upper plane (11) side extends to pedicle screw guide pin road and extend several millimeter again after the outlet of upper plane (11); It is oppositely consistent that pedicle screw guide pin road (2) direction and pedicle screw enter direction, Ding Ding road, and pedicle screw guide pin road (2) axis is through entering the entry point in Ding Ding road; Polylith guide plate arranges connecting elements between (1).
2. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 1 prints implants plate, it is characterized in that, described guide plate (1) number is one piece, guide plate (1) can cover the continuous vertebral plate of 1-6 block, guide plate is arranged the pedicle screw guide pin road (2) corresponding with covering vertebral plate number and spinous process hole (3).
3. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 2 prints implants plate, it is characterized in that, described spinous process hole (3) is positioned at guide plate (1) side, 1-6 spinous process hole (3) is set, described pedicle screw guide pin road (2) is arranged at the opposite side of guide plate (1), arranges 1-6 guide pin road (2).
4. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 2 prints implants plate, it is characterized in that, described spinous process hole (3) is positioned at guide plate (1) central authorities, 1-6 spinous process hole (3) is set, described pedicle screw guide pin road (2) is arranged on guide plate (1) both sides, arranges 1-6 to guide pin road (2).
5. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 1 prints implants plate, it is characterized in that, described guide plate (1) number arranges 1-6, each guide plate (1) covers one piece of vertebral plate, each guide plate is arranged one or a pair pedicle screw guide pin road (2) and a spinous process hole (3), between two guide plates (1), be provided with the connecting elements (5) of interconnect function.
6. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 5 prints implants plate, it is characterized in that, described spinous process hole (3) is positioned at each guide plate (1) side, each guide plate (1) is arranged 1 described pedicle screw guide pin road (2), described pedicle screw guide pin road (2) is arranged at the opposite side of guide plate (1).
7. the Pedicle Screw Placement in Lower Cervical guiding that 3D according to claim 5 prints implants plate, it is characterized in that, described spinous process hole (3) is positioned at each guide plate (1) central authorities, each guide plate (1) is arranged 1 to described pedicle screw guide pin road (2), described pedicle screw guide pin road (2) is arranged on guide plate (1) both sides.
8. the Pedicle Screw Placement in Lower Cervical guiding that the 3D according to claim 1-7 any one prints implants plate, it is characterized in that, guide plate (1) is also arranged one or several staple (4).
9. the Pedicle Screw Placement in Lower Cervical guiding that the 3D according to claim 1-7 any one prints implants plate, and it is characterized in that, described spinous process hole (3) position is provided with spinous process fixation clamp (31).
10. the Pedicle Screw Placement in Lower Cervical guiding that the 3D according to claim 1-7 any one prints implants plate, and it is characterized in that, the plane (11) on described guide plate top and the distance of bottom curved surface (12) peak are 3-5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520189883.5U CN204600657U (en) | 2015-03-31 | 2015-03-31 | The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520189883.5U CN204600657U (en) | 2015-03-31 | 2015-03-31 | The Pedicle Screw Placement in Lower Cervical guiding that 3D prints implants plate |
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| CN204600657U true CN204600657U (en) | 2015-09-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739501A (en) * | 2015-03-31 | 2015-07-01 | 首都医科大学附属北京友谊医院 | 3D-printed cervical vertebra pedicle screw guide and implantation plate and preparation method thereof |
-
2015
- 2015-03-31 CN CN201520189883.5U patent/CN204600657U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739501A (en) * | 2015-03-31 | 2015-07-01 | 首都医科大学附属北京友谊医院 | 3D-printed cervical vertebra pedicle screw guide and implantation plate and preparation method thereof |
| CN104739501B (en) * | 2015-03-31 | 2017-02-01 | 首都医科大学附属北京友谊医院 | 3D-printed cervical vertebra pedicle screw guide and implantation plate and preparation method thereof |
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