CN109820626A - A kind of Invasive lumbar fusion device of four-way expansion - Google Patents
A kind of Invasive lumbar fusion device of four-way expansion Download PDFInfo
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- CN109820626A CN109820626A CN201910198515.XA CN201910198515A CN109820626A CN 109820626 A CN109820626 A CN 109820626A CN 201910198515 A CN201910198515 A CN 201910198515A CN 109820626 A CN109820626 A CN 109820626A
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- 230000004927 fusion Effects 0.000 title claims abstract description 80
- 239000011324 bead Substances 0.000 claims description 21
- 230000014759 maintenance of location Effects 0.000 claims description 21
- 238000002513 implantation Methods 0.000 claims description 12
- 230000013011 mating Effects 0.000 claims description 7
- 241000397426 Centroberyx lineatus Species 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract description 6
- 238000011105 stabilization Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 10
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 206010058907 Spinal deformity Diseases 0.000 description 1
- 208000020307 Spinal disease Diseases 0.000 description 1
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 210000000273 spinal nerve root Anatomy 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
Abstract
The present invention relates to Invasive lumbar fusion device the field of medical instrument technology, specifically a kind of Invasive lumbar fusion device of four-way expansion, it is characterized in that fusion mechanism is unfolded by four-way for the Invasive lumbar fusion device and driving spreading mechanism forms, the four-way expansion fusion mechanism is by preceding upper distraction plate, front lower distraction plate, upper distraction plate and afterwards lower distraction plate composition afterwards, the preceding upper distraction plate is made of front side board and epipleural, the front lower distraction plate is made of front slide and lower skateboard, the rear upper distraction plate is made of tail skid and upper slide, the rear lower distraction plate is made of back side panel and lower side panel, with the distracting force using Invasive lumbar fusion device, restore vertebra section height and tension, it realizes and releases compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, the advantages that ensureing the four-way expansion of spinal stabilization.
Description
Technical field
The present invention relates to Invasive lumbar fusion device the field of medical instrument technology, specifically a kind of support using Invasive lumbar fusion device
Opening force, restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union,
Ensure the Invasive lumbar fusion device of the four-way expansion of spinal stabilization.
Background technique
It is well known that backbone retrogression is common on Orthopedic Clinical, degeneration of intervertebral disc common are, spinal canal stenosis,
Spondylolisthesis, oppressing spinal cord or nerve root person often needs operative treatment, thoroughly releases compressing, restores vertebra physiological camber, ensures ridge
Column is stablized.Another part deformity of spine, wound, tumour, reprocess operation and infected patient sometimes and also need row interbody fusion with
Stablize lumbar motion segment.Invasive lumbar fusion device has a better effect for the above spinal disease, easy to operate, easy to use, fusion
Rate is high, the complication of no bone grafting fusion, through it is commonly used with it is clinical, but existing Invasive lumbar fusion device still has stabilization
The defects of property is not high.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide a kind of distracting force using Invasive lumbar fusion device,
Restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, ensure
The Invasive lumbar fusion device of the four-way expansion of spinal stabilization.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of Invasive lumbar fusion device of four-way expansion, it is characterised in that fusion mechanism is unfolded by four-way for the Invasive lumbar fusion device and driving is supportted
Opening mechanism composition,
The four-way expansion fusion mechanism is made of preceding upper distraction plate, front lower distraction plate, afterwards upper distraction plate and rear lower distraction plate,
The preceding upper distraction plate is made of front side board and epipleural, and the front lower distraction plate is made of front slide and lower skateboard, institute
The rear upper distraction plate stated is made of tail skid and upper slide, and the rear lower distraction plate is made of back side panel and lower side panel,
The upper end of front side board in the preceding upper distraction plate is connected to form L-type plate with the front end of epipleural, the front side
Plate is respectively arranged on the left side and the right side the end sliding groove slided up and down for front slide in front lower distraction plate, the end sliding groove
The front side board of side is equipped with sliding boss, and the middle part of the epipleural is equipped with after confession in above distraction plate in upper slide sliding
The epipleural of portion's sliding groove, the left and right sides of the middle part sliding groove is equipped with sliding recess,
The upper end of tail skid in the rear upper distraction plate is connected to form L-type plate with the rear end of upper slide, the upper cunning
Plate left and right ends are respectively equipped with the end sliding groove slid back and forth for epipleural, on the upper slide of the end sliding groove side
Equipped with sliding boss, the sliding boss of upper slide are matched with the sliding recess of sliding groove side in the middle part of epipleural to be slidably connected,
And then realize sliding back and forth between upper slide and epipleural, the middle part of the tail skid is equipped with rear side in distraction plate lower after supplying
The tail skid of the middle part sliding groove that plate slides up and down, the left and right sides of the middle part sliding groove is equipped with sliding recess,
The lower end of back side panel in the rear lower distraction plate is connected to form L-type plate with the rear end of lower side panel, the rear side
The left and right ends of plate are respectively equipped with the end sliding groove slided up and down for tail skid, the back side panel of the end sliding groove side
Sliding boss are equipped with, the sliding boss on back side panel are matched with the sliding recess on tail skid to be slidably connected, and then realizes
Sliding up and down between tail skid and back side panel, the middle part of the lower side panel is equipped with to slide back and forth for lower skateboard in preceding lower side panel
Middle part sliding groove, the lower side panel of the left and right sides of the middle part sliding groove is equipped with sliding recess,
The front end of lower skateboard in the front lower distraction plate is connected to form L-type plate with the lower end of front slide, the downslide
The left and right ends of plate are respectively equipped with the end sliding groove slid back and forth for lower side panel, the lower skateboard of the end sliding groove side
Sliding boss are equipped with, the sliding boss on lower skateboard are matched with the sliding recess on lower side panel to be slidably connected, and then realizes
Sliding back and forth between lower skateboard and lower side panel, the middle part of the front slide are equipped with for gliding on front side board in preceding upper distraction plate
Dynamic middle part sliding groove, the front slide of the left and right sides of the middle part sliding groove are equipped with sliding recess, and sliding recess is with before
Sliding boss cooperation in side plate slides up and down connection,
Epipleural in the preceding upper distraction plate is matched with the upper slide in rear upper distraction plate by sliding boss and sliding recess
Conjunction slides back and forth connection, and the tail skid in rear upper distraction plate and the back side panel in rear lower distraction plate are recessed by sliding boss and sliding
Slot cooperation slides up and down connection, and the lower side panel in the rear lower distraction plate is convex by sliding with the lower skateboard in front lower distraction plate
Platform slides back and forth with sliding recess cooperation and connect, the front slide in the front lower distraction plate and the front side board in preceding upper distraction plate
It is slided up and down and is connect with sliding recess cooperation by sliding boss, realize encircling type connection,
The described four-way expansion fusion mechanism is respectively arranged on the left side and the right side driving spreading mechanism, the driving spreading mechanism by
Left drawing block and right pushing block composition, the left drawing block and right pushing block upper distraction plate before being respectively provided at, front lower distraction plate,
Upper distraction plate and rear lower distraction plate are mutually slidably connected the left side and right side of the circumferential type structure of composition afterwards, and the left side is led
Pulling block is made of left tractive unit and left enlarged portion, and the left tractive unit is located at the left side of left enlarged portion, the left enlarged portion
It is set as frustum type, the middle part of left enlarged portion and left tractive unit is equipped with the traction screw hole of coaxial line, the left expansion of frustum type of left drawing block
The portion of opening puts in the left part of four-way expansion fusion mechanism, and the right pushing block is made of right enlarged portion and right promotion part, described
Right enlarged portion be located at the left side of right promotion part, the right enlarged portion is set as frustum type, in right enlarged portion and right promotion part
Portion is equipped with and draws the propulsion through-hole of screw hole coaxial line, and the traction spiral shell promoted in through-hole and left drawing block is passed through by implantation holder
Hole is connected, by left drawing block and right pushing block inside contract realize in four-way expansion fusion mechanism before upper distraction plate, front lower
Distraction plate, afterwards upper distraction plate and afterwards lower distraction plate four-way opening.
Invasive lumbar fusion device of the present invention by implantation holder driving four-way strut, the implantation holder by handle, lead
Pull rod, pushing ram promote knob composition, and pushing ram is set as tubulose, and the right end of the handle is connected with stayed pole, stayed pole
Left part be set to the left drawing screw thread that matches of drawing block, the right part of the front tension bar, which is equipped with, promotes screw thread, described
The outer sheath of propulsion screw thread be equipped with propulsion knob, promote knob to be connected through a screw thread with stayed pole, the propulsion knob
Left end be connected with the pushing ram being socketed on the outside of stayed pole, pass through rotation promote knob reduce pushing ram left part and drawing
The distance of bar left part realizes the distance between left drawing block and right pushing block.
The diameter of pushing ram of the present invention be greater than right pushing block propulsion through-hole diameter, make pushing ram contradict by
Pushing block side is promoted.
The right end of pushing ram of the present invention and the left end of propulsion knob pass through rotating mechanism and are rotatablely connected, and described turns
Motivation structure is set as bearing or annular groove and is attached with annular convex platform fit structure.
Two end faces up and down of the left tractive unit of left drawing block of the present invention are respectively equipped with anticreep retention bead, institute
It is respectively equipped with anticreep limiting groove on epipleural corresponding with left drawing block, upper slide, lower side panel and the lower skateboard stated, by anti-
The mating connection of de- retention bead and anticreep limiting groove realizes that left drawing block is connected to the distracted four-way expansion fusion machine of four-way
In structure, two end faces up and down of the right promotion part in the right pushing block are respectively equipped with anticreep retention bead, described with the right side
It is respectively equipped with anticreep limiting groove on the corresponding epipleural of pushing block, upper slide, lower side panel and lower skateboard, passes through anticreep limit convex
It rises and the mating connection of anticreep limiting groove is realized and is connected in the distracted four-way expansion fusion mechanism of four-way by pushing block.
The right side of two anticreep retention beads up and down of right promotion part in right pushing block of the present invention is equipped with resistance and moves
Boss, the resistance above the right promotion part move the front end that boss is located at the right promotion part of right pushing block, the right promotion part
The resistance of lower section moves the rear end that boss is located at right pushing block, is respectively equipped on the epipleural and lower side panel and matches with resistance shifting boss
The resistance of conjunction moves sliding slot, and moving boss by resistance prevents the right pushing block fixed from moving left and right.
Front side board, epipleural, front slide, lower skateboard, tail skid, upper slide, back side panel and lower side panel of the present invention
On be respectively equipped with for Bony union material enter plant hole, facilitate the fusion device and intervertebral Bony union.
Epipleural, lower skateboard, upper slide and lower side panel of the present invention are respectively equipped with zigzag boss, guarantee upside
Fixed stability, prevents from slipping between plate, lower skateboard, upper slide and lower side panel and intervertebral.
Sliding boss of the present invention and sliding recess, resistance move boss and resistance moves sliding slot and can be set as mutually matched respectively
I-shaped, cylindricality, trapezoidal, swallow-tail form, rectangle, arc-shaped, polygon, the opposite sex or other various shapes for being able to achieve sliding.
Anticreep retention bead of the present invention and anticreep limiting groove can be set as respectively pawl or arc convex or other
It is able to achieve the shape of sliding clamping.
The present invention is since fusion mechanism is unfolded by four-way in the Invasive lumbar fusion device and spreading mechanism is driven to form, the four-way
Expansion fusion mechanism is made of preceding upper distraction plate, front lower distraction plate, afterwards upper distraction plate and rear lower distraction plate, the preceding upper support
Plate is opened to be made of front side board and epipleural, the front lower distraction plate is made of front slide and lower skateboard, it is described it is rear on strut
Plate is made of tail skid and upper slide, and the rear lower distraction plate is made of back side panel and lower side panel, is pulled by implantation holder
The left drawing block and right pushing block in spreading mechanism are driven, and then drives front side board, epipleural, front slide, lower skateboard, slide afterwards
Plate, upper slide, back side panel and lower side panel are respectively along sliding boss and sliding recess mutually front and back and move up and down realization armful contracting
And expansion, have using Invasive lumbar fusion device distracting force, restore vertebra section height and tension, realize release compressing, restore ridge
Vertebra physiological camber, Invasive lumbar fusion device Bony union ensure the advantages that four-way of spinal stabilization is unfolded.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram after the present invention struts.
Fig. 3 is the schematic diagram of internal structure after Fig. 2 is strutted.
Fig. 4 is the structural schematic diagram of front lower distraction plate in the present invention, rear upper distraction plate, wherein 4-1 is perspective view, and 4-2 is
Other direction perspective view.
Fig. 5 is the structural schematic diagram of preceding upper distraction plate in the present invention, rear lower distraction plate, wherein 5-1 is perspective view, and 5-2 is
Other direction perspective view.
Fig. 6 is the structural schematic diagram of left drawing block in the present invention, wherein 6-1 is perspective view, and 6-2 is main view.
Fig. 7 is the structural schematic diagram of right pushing block in the present invention, wherein 7-1 is perspective view, and 7-2 is main view, and 7-3 is
The perspective view of other direction.
Fig. 8 is usage state diagram of the invention, wherein 8-1 is to strut preceding usage state diagram, and 8-2 is that shape is used after strutting
State figure.
Fig. 9 is the structural schematic diagram that holder is implanted into the present invention.
Specific embodiment
The following further describes the present invention with reference to the drawings:
As shown in the picture, a kind of Invasive lumbar fusion device of four-way expansion, it is characterised in that the Invasive lumbar fusion device is unfolded to merge by four-way
Mechanism and driving spreading mechanism composition, the four-way expansion fusion mechanism is by preceding upper distraction plate 1, front lower distraction plate 2, rear upper support
It opens plate 3 and lower distraction plate 4 forms afterwards, the preceding upper distraction plate 1 is made of front side board and epipleural, described front lower to strut
Plate 2 is made of front slide and lower skateboard, and the rear upper distraction plate 3 is made of tail skid and upper slide, it is described it is rear under strut
Plate 4 is made of back side panel and lower side panel, and the upper end of front side board in the preceding upper distraction plate 1 is connected with the front end of epipleural
L-type plate is formed, the end slided up and down for front slide in front lower distraction plate 2 that is respectively arranged on the left side and the right side of the front side board is slided
Dynamic slot 7, the front side board of 7 side of end sliding groove is equipped with sliding boss 5, after the middle part of the epipleural is equipped with confession
The middle part sliding groove 8 that upper slide slides in upper distraction plate 3, the epipleural of the left and right sides of the middle part sliding groove 8 are equipped with
Sliding recess 6, the upper end of tail skid in the rear upper distraction plate 3 is connected to form L-type plate with the rear end of upper slide, described
Upper slide left and right ends be respectively equipped with the end sliding groove 7 slid back and forth for epipleural, 7 side of end sliding groove
Upper slide is equipped with sliding boss 5, and the sliding recess 6 of 8 side of sliding groove matches in the middle part of the sliding boss 5 and epipleural of upper slide
Conjunction is slidably connected, and then realizes sliding back and forth between upper slide and epipleural, under the middle part of the tail skid is equipped with after confession
The middle part sliding groove 8 that back side panel slides up and down in distraction plate 4 is set on the tail skid of the left and right sides of the middle part sliding groove 8
There is sliding recess 6, the lower end of back side panel in the rear lower distraction plate 4 is connected to form L-type plate with the rear end of lower side panel, institute
The left and right ends for the back side panel stated are respectively equipped with the end sliding groove 7 slided up and down for tail skid, 7 side of end sliding groove
The back side panel in face is equipped with sliding boss 5, and the sliding boss 5 on back side panel match sliding with the sliding recess 6 on tail skid
Connection, and then realize sliding up and down between tail skid and back side panel, the middle part of the lower side panel is equipped in preceding lower side panel
The lower side panel of the middle part sliding groove 8 that lower skateboard slides back and forth, the left and right sides of the middle part sliding groove 8 is equipped with sliding recess
6, the front end of lower skateboard in the front lower distraction plate 2 is connected to form L-type plate with the lower end of front slide, the lower skateboard
Left and right ends be respectively equipped with the end sliding groove 7 slid back and forth for lower side panel, the lower skateboard of 7 side of end sliding groove
Sliding boss 5 are equipped with, the sliding boss 5 on lower skateboard are matched with the sliding recess 6 on lower side panel to be slidably connected, Jin Ershi
The middle part of now sliding back and forth between slide plate and lower side panel, the front slide is equipped on front side board in preceding upper distraction plate 1
The front slide of the middle part sliding groove 8 of lower slider, the left and right sides of the middle part sliding groove 8 is equipped with sliding recess 6, slides recessed
Slot 6 is slided up and down with the cooperation of sliding boss 5 in front side board and is connect, the epipleural in the preceding upper distraction plate 1 and rear upper support
It opens upper slide in plate 3 and is slid back and forth by sliding boss 5 with the cooperation of sliding recess 6 and connect, go up the tail skid in distraction plate 3 afterwards
It is slided up and down and is connect with the cooperation of sliding recess 6 by sliding boss 5 with the back side panel in rear lower distraction plate 4, the rear lower support
The lower skateboard opened in lower side panel and front lower distraction plate 2 in plate 4 cooperates the company of sliding back and forth by sliding boss 5 and sliding recess 6
It connects, the front slide in the front lower distraction plate 2 and the front side board in preceding upper distraction plate 1 pass through sliding boss 5 and sliding recess 6
Cooperation slides up and down connection, realizes encircling type connection, the four-way expansion fusion mechanism is respectively arranged on the left side and the right side driving
Spreading mechanism, the driving spreading mechanism are made of left drawing block 9 and right pushing block 10, and the left drawing block 9 and the right side push away
Upper distraction plate 1 before being respectively provided at into block 10, front lower distraction plate 2, afterwards upper distraction plate 3 and lower distraction plate 4 is mutually slidably connected group afterwards
At circumferential type structure left side and right side, the left drawing block 9 is made of left tractive unit 11 and left enlarged portion 12, institute
The left tractive unit 11 stated is located at the left side of left enlarged portion 12, and the left enlarged portion 12 is set as frustum type, left enlarged portion 12 and a left side
The middle part of tractive unit 11 is equipped with the traction screw hole 15 of coaxial line, and the left enlarged portion 12 of frustum type of left drawing block 9 puts in four-way expansion
The left part of mechanism is merged, the right pushing block 10 is made of right enlarged portion 13 and right promotion part 14, the right enlarged portion
13 are located at the left side of right promotion part 14, and the right enlarged portion 13 is set as frustum type, in right enlarged portion 13 and right promotion part 14
Portion is equipped with and draws the propulsion through-hole 16 of 15 coaxial line of screw hole, is passed through and is promoted in through-hole 16 and left drawing block 9 by implantation holder
Traction screw hole 15 be connected, by it is left drawing block 9 and right pushing block 10 inside contract realize four-way expansion fusion mechanism in front of
Upper distraction plate 1, front lower distraction plate 2, afterwards upper distraction plate 3 and rear lower 4 four-way of distraction plate are opened, Invasive lumbar fusion device of the present invention
It is strutted by implantation holder driving four-way, the implantation holder is by handle 23, stayed pole 24, pushing ram 25,26 groups of knob of propulsion
At, pushing ram 25 is set as tubulose, and the right end of the handle 23 is connected with stayed pole 24, the left part of stayed pole 24 be set to
The drawing screw thread that left drawing block matches, the right part of the front tension bar, which is equipped with, promotes screw thread, outside the propulsion screw thread
Side set, which is equipped with, promotes knob 26, and knob 26 is promoted to be connected through a screw thread with stayed pole 24, the left end of the propulsion knob 26
It is connected with the pushing ram 25 for being socketed in 24 outside of stayed pole, promotes knob 26 to reduce 25 left part of pushing ram and lead by rotation
The distance of 24 left part of pull rod realizes that the distance between left drawing block and right pushing block, the diameter of the pushing ram 25 are greater than the right side
The diameter of the propulsion through-hole of pushing block, promotes the conflict of pushing ram 25 by pushing block side, the pushing ram 25
The left end of right end and propulsion knob 26 is rotatablely connected by rotating mechanism, and the rotating mechanism is set as bearing or annular groove and ring
Shape boss fit structure is attached, and two end faces up and down of the left tractive unit 11 of the left drawing block 9 are respectively equipped with anti-
Retention bead 17 is taken off, is respectively equipped on the epipleural corresponding with left drawing block 9, upper slide, lower side panel and lower skateboard anti-
De- limiting groove 18 realizes that left drawing block 9 is connected to by the mating connection of anticreep retention bead 17 and anticreep limiting groove 18
In the distracted four-way expansion fusion mechanism of four-way, two end face difference up and down of the right promotion part 14 in the right pushing block 10
Equipped with anticreep retention bead 17, on the epipleural corresponding with right pushing block 10, upper slide, lower side panel and lower skateboard respectively
Equipped with anticreep limiting groove 18, realized by the mating connection of anticreep retention bead 17 and anticreep limiting groove 18 by pushing block card
It connects in the distracted four-way expansion fusion mechanism of four-way, two anticreeps up and down of the right promotion part 14 in the right pushing block 10
The right side of retention bead 17 is equipped with resistance and moves boss 19, and the resistance of 14 top of right promotion part moves boss 19 and is located at right pushing block 10
Right promotion part 14 front end, the resistance of 14 lower section of the right promotion part moves the rear end that boss 19 is located at right pushing block 10, described
Epipleural and lower side panel on be respectively equipped with and hinder and move the resistance that matches of boss 19 and move sliding slot 20, by resistance move boss 19 prevent it is solid
The right pushing block 10 set moves left and right, the front side board, epipleural, front slide, lower skateboard, tail skid, upper slide, rear side
It is respectively equipped with the plant hole 21 entered for Bony union material on plate and lower side panel, facilitates the fusion device and intervertebral Bony union,
Epipleural, lower skateboard, upper slide and the lower side panel is respectively equipped with zigzag boss 22, guarantees epipleural, lower skateboard, upper cunning
Fixed stability, prevents from slipping between plate and lower side panel and intervertebral, and the sliding boss 5 and sliding recess 6, resistance move boss
19 and resistance move sliding slot 20 can be set as respectively mutually matched I-shaped, cylindricality, trapezoidal, swallow-tail form, rectangle, arc-shaped, polygon,
Anisotropic or other various shapes for being able to achieve sliding.Anticreep retention bead 17 of the present invention and anticreep limiting groove 18 are distinguished
It can be set as pawl or arc convex or other are able to achieve the shape of sliding clamping.
In the use of the present invention, when being implanted into holder by pulling left drawing block 9 and promoting right pushing block 10, left drawing block
9 and right pushing block 10 apart from can reduce shortening, left drawing block 9 and right pushing block 10 can continuous merging four-way expansion fusion mechanism,
And constantly prop up four-way expansion fusion mechanism, thus realize the four-way expansion of Invasive lumbar fusion device, the left drawing block 9
Two end faces up and down of left tractive unit 11 are respectively equipped with anticreep retention bead 17, the epipleural corresponding with left drawing block 9,
It is respectively equipped with anticreep limiting groove 18 on upper slide, lower side panel and lower skateboard, is limited by anticreep retention bead 17 and anticreep recessed
The mating connection of slot 18 realizes that left drawing block 9 is connected in the distracted four-way expansion fusion mechanism of four-way, the right pushing block
Two end faces up and down of right promotion part 14 in 10 are respectively equipped with anticreep retention bead 17, described corresponding with right pushing block 10
It is respectively equipped with anticreep limiting groove 18 on epipleural, upper slide, lower side panel and lower skateboard, passes through anticreep retention bead 17 and anticreep
The mating connection of limiting groove 18 is realized to be connected in the distracted four-way expansion fusion mechanism of four-way by pushing block, when driving struts
When mechanism is pushed into four-way expansion fusion mechanism, it can be limited by the cooperation of anticreep retention bead 17 and anticreep limiting groove 18
Position, to prevent front and back abjection and driving spreading mechanism merging four-way exhibition after driving spreading mechanism merging four-way expansion fusion mechanism
Left and right displacement after opening fusion mechanism realizes that the driving expanding structure is pulled by implantation holder and promotes merging four-way expansion fusion
Mechanism, so that mechanism is merged in four-way expansion realizes that four sides is unfolded, the present invention is since the Invasive lumbar fusion device is by four-way expansion fusion
Mechanism and driving spreading mechanism composition, the four-way expansion fusion mechanism is by preceding upper distraction plate 1, front lower distraction plate 2, rear upper support
It opens plate 3 and lower distraction plate 4 forms afterwards, the preceding upper distraction plate 1 is made of front side board and epipleural, described front lower to strut
Plate 2 is made of front slide and lower skateboard, and the rear upper distraction plate 3 is made of tail skid and upper slide, it is described it is rear under strut
Plate 4 is made of back side panel and lower side panel, pulls the left drawing block 9 and right pushing block in driving spreading mechanism by implantation holder
10, and then drive front side board, epipleural, front slide, lower skateboard, tail skid, upper slide, back side panel and lower side panel respectively along cunning
It moves boss 5 and sliding recess 6 mutually front and back and moves up and down realization armful contracting and expansion, there is strutting using Invasive lumbar fusion device
Power, restore vertebra section height and tension, realize release compressing, restore vertebra physiological camber, Invasive lumbar fusion device Bony union, protect
The advantages that hindering the four-way expansion of spinal stabilization.
Claims (10)
1. a kind of Invasive lumbar fusion device of four-way expansion, it is characterised in that fusion mechanism and driving is unfolded by four-way in the Invasive lumbar fusion device
Spreading mechanism composition,
The four-way expansion fusion mechanism is made of preceding upper distraction plate, front lower distraction plate, afterwards upper distraction plate and rear lower distraction plate,
The preceding upper distraction plate is made of front side board and epipleural, and the front lower distraction plate is made of front slide and lower skateboard, institute
The rear upper distraction plate stated is made of tail skid and upper slide, and the rear lower distraction plate is made of back side panel and lower side panel,
The upper end of front side board in the preceding upper distraction plate is connected to form L-type plate with the front end of epipleural, the front side
Plate is respectively arranged on the left side and the right side the end sliding groove slided up and down for front slide in front lower distraction plate, the end sliding groove
The front side board of side is equipped with sliding boss, and the middle part of the epipleural is equipped with after confession in above distraction plate in upper slide sliding
The epipleural of portion's sliding groove, the left and right sides of the middle part sliding groove is equipped with sliding recess,
The upper end of tail skid in the rear upper distraction plate is connected to form L-type plate with the rear end of upper slide, the upper cunning
Plate left and right ends are respectively equipped with the end sliding groove slid back and forth for epipleural, on the upper slide of the end sliding groove side
Equipped with sliding boss, the sliding boss of upper slide are matched with the sliding recess of sliding groove side in the middle part of epipleural to be slidably connected,
And then realize sliding back and forth between upper slide and epipleural, the middle part of the tail skid is equipped with rear side in distraction plate lower after supplying
The tail skid of the middle part sliding groove that plate slides up and down, the left and right sides of the middle part sliding groove is equipped with sliding recess,
The lower end of back side panel in the rear lower distraction plate is connected to form L-type plate with the rear end of lower side panel, the rear side
The left and right ends of plate are respectively equipped with the end sliding groove slided up and down for tail skid, the back side panel of the end sliding groove side
Sliding boss are equipped with, the sliding boss on back side panel are matched with the sliding recess on tail skid to be slidably connected, and then realizes
Sliding up and down between tail skid and back side panel, the middle part of the lower side panel is equipped with to slide back and forth for lower skateboard in preceding lower side panel
Middle part sliding groove, the lower side panel of the left and right sides of the middle part sliding groove is equipped with sliding recess,
The front end of lower skateboard in the front lower distraction plate is connected to form L-type plate with the lower end of front slide, the downslide
The left and right ends of plate are respectively equipped with the end sliding groove slid back and forth for lower side panel, the lower skateboard of the end sliding groove side
Sliding boss are equipped with, the sliding boss on lower skateboard are matched with the sliding recess on lower side panel to be slidably connected, and then realizes
Sliding back and forth between lower skateboard and lower side panel, the middle part of the front slide are equipped with for gliding on front side board in preceding upper distraction plate
Dynamic middle part sliding groove, the front slide of the left and right sides of the middle part sliding groove are equipped with sliding recess, and sliding recess is with before
Sliding boss cooperation in side plate slides up and down connection,
Epipleural in the preceding upper distraction plate is matched with the upper slide in rear upper distraction plate by sliding boss and sliding recess
Conjunction slides back and forth connection, and the back side panel in tail skid and rear lower distraction plate in rear upper distraction plate is by passing through sliding boss and cunning
Dynamic groove cooperation slides up and down connection, and the lower side panel in the rear lower distraction plate and the lower skateboard in front lower distraction plate pass through cunning
Dynamic boss slides back and forth with sliding recess cooperation and connect, the front slide in the front lower distraction plate in preceding upper distraction plate before
Side plate is slided up and down with sliding recess cooperation by sliding boss and is connect, and realizes encircling type connection,
The described four-way expansion fusion mechanism is respectively arranged on the left side and the right side driving spreading mechanism, the driving spreading mechanism by
Left drawing block and right pushing block composition, the left drawing block and right pushing block upper distraction plate before being respectively provided at, front lower distraction plate,
Upper distraction plate and rear lower distraction plate are mutually slidably connected the left side and right side of the circumferential type structure of composition afterwards, and the left side is led
Pulling block is made of left tractive unit and left enlarged portion, and the left tractive unit is located at the left side of left enlarged portion, the left enlarged portion
It is set as frustum type, the middle part of left enlarged portion and left tractive unit is equipped with the traction screw hole of coaxial line, the left expansion of frustum type of left drawing block
The portion of opening puts in the left part of four-way expansion fusion mechanism, and the right pushing block is made of right enlarged portion and right promotion part, described
Right enlarged portion be located at the left side of right promotion part, the right enlarged portion is set as frustum type, in right enlarged portion and right promotion part
Portion is equipped with and draws the propulsion through-hole of screw hole coaxial line, and the traction spiral shell promoted in through-hole and left drawing block is passed through by implantation holder
Hole is connected, by left drawing block and right pushing block inside contract realize in four-way expansion fusion mechanism before upper distraction plate, front lower
Distraction plate, afterwards upper distraction plate and afterwards lower distraction plate four-way opening.
2. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the Invasive lumbar fusion device
It is strutted by implantation holder driving four-way, the implantation holder is made of handle, stayed pole, pushing ram, propulsion knob, pushing ram
It is set as tubulose, the right end of the handle is connected with stayed pole, and the left part of stayed pole, which is set to, pulls what block matched with left
Screw thread is pulled, the right part of the front tension bar, which is equipped with, promotes screw thread, and the outer sheath of the propulsion screw thread is equipped with propulsion rotation
Button promotes knob to be connected through a screw thread with stayed pole, the left end of the propulsion knob and the propulsion being socketed on the outside of stayed pole
Bar is connected, and promotes knob to reduce pushing ram left part by rotation and realizes left drawing block and the right side at a distance from stayed pole left part
The distance between pushing block.
3. a kind of Invasive lumbar fusion device of four-way expansion according to claim 2, it is characterised in that the pushing ram it is straight
Diameter is greater than the diameter of the propulsion through-hole of right pushing block, promotes pushing ram conflict by pushing block side.
4. a kind of Invasive lumbar fusion device of four-way expansion according to claim 2, it is characterised in that the right side of the pushing ram
End is rotatablely connected with the left end of knob is promoted by rotating mechanism, and the rotating mechanism is set as bearing or annular groove and convex annular
Platform fit structure is attached.
5. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the left drawing block
Two end faces up and down of left tractive unit be respectively equipped with anticreep retention bead, the epipleural corresponding with left drawing block, on
It is respectively equipped with anticreep limiting groove on slide plate, lower side panel and lower skateboard, passes through matching for anticreep retention bead and anticreep limiting groove
It closes connection and realizes that left drawing block is connected in the distracted four-way expansion fusion mechanism of four-way, the right propulsion in the right pushing block
Two end faces up and down in portion are respectively equipped with anticreep retention bead, the epipleural corresponding with right pushing block, upper slide, downside
It is respectively equipped with anticreep limiting groove on plate and lower skateboard, is realized by the mating connection of anticreep retention bead and anticreep limiting groove
It is connected in the distracted four-way expansion fusion mechanism of four-way by pushing block.
6. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that in the right pushing block
The right side of two anticreep retention beads up and down of right promotion part be equipped with resistance and move boss, the resistance above the right promotion part moves convex
Platform is located at the front end of the right promotion part of right pushing block, after the resistance shifting boss below the right promotion part is located at right pushing block
It holds, is respectively equipped on the epipleural and lower side panel and resistance moves the resistance that boss matches and moves sliding slot, prevented by resistance shifting boss
The right pushing block fixed moves left and right.
7. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the front side board, upside
The plant entered for Bony union material is respectively equipped on plate, front slide, lower skateboard, tail skid, upper slide, back side panel and lower side panel
Object hole facilitates the fusion device and intervertebral Bony union.
8. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the epipleural glides
Plate, upper slide and lower side panel are respectively equipped with zigzag boss, guarantee epipleural, lower skateboard, upper slide and lower side panel and intervertebral it
Between fixed stability, prevent from slipping.
9. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the sliding boss and
Sliding recess, resistance move boss and resistance move sliding slot can be set as respectively mutually matched I-shaped, cylindricality, trapezoidal, swallow-tail form, rectangle,
Arc-shaped, polygon, the opposite sex or other various shapes for being able to achieve sliding.
10. a kind of Invasive lumbar fusion device of four-way expansion according to claim 1, it is characterised in that the anticreep limit convex
It rises and anticreep limiting groove can be set as pawl or arc convex respectively or other are able to achieve the shape of sliding clamping.
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| CN109820626B CN109820626B (en) | 2023-11-14 |
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| CN109820626B (en) | 2023-11-14 |
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