CN208243616U - One kind can strut spinous process fusion Interal fixation system - Google Patents
One kind can strut spinous process fusion Interal fixation system Download PDFInfo
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- CN208243616U CN208243616U CN201721136445.8U CN201721136445U CN208243616U CN 208243616 U CN208243616 U CN 208243616U CN 201721136445 U CN201721136445 U CN 201721136445U CN 208243616 U CN208243616 U CN 208243616U
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- spinous process
- strut
- fixed plate
- block
- fagging
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Abstract
The utility model relates to medical instrument manufacture technology fields, specifically one kind can strut spinous process fusion Interal fixation system, it is characterized in that the system is by left spinous process fixed plate, right spinous process fixed plate and gradual change spreading mechanism composition, left guiding square hole is equipped in the middle part of left spinous process fixed plate, left spinous process fixed plate on the outside of left guiding square hole is equipped with positioning plate, the middle part of positioning plate is equipped with locking hole, the middle part of right spinous process fixed plate is equipped with right guiding square hole, the side of right spinous process fixed plate is equipped with locking screw holes, clamping screw is equipped in locking screw holes, the gradual change spreading mechanism is by upper fagging, lower fagging, a left side struts block, the right side struts block and rotary screw composition, under the action of rotary screw reverse thread by rotate be it is left strut block and it is right strut block and meanwhile move outward realize upper fagging and lower fagging strut realization spinous process gap it Between strut, have many advantages, such as between simple, easy to use, the continuous expansion intervertebral foramen spinous process of structure that distance, therapeutic effect are good, mitigate patient suffering.
Description
Technical field
The present invention relates to medical instrument manufacture technology field, specifically a kind of simple, easy to use, continuous expansion of structure
Distance, therapeutic effect are good between big intervertebral foramen spinous process, mitigate patient suffering strut spinous process fusion Interal fixation system.
Background technique
It is well known that the protrasion of the lumbar intervertebral disci is the common disease and frequently-occurring disease of orthopaedics, and clinically pain in waist and lower extremities is most common
One of the reason of.The protrasion of the lumbar intervertebral disci is mainly due to degeneration of intervertebral disc, and Anular disruption and nucleus pulposus are prominent, compressing
With a series of clinical symptoms and sign caused by stimulation nerve root, cauda equina nerve, less serious case can cause patient side limbs to radiate
Property pain, numbness and muscular strength change, severe one can lead to the limb motion of patient's irreversibility, sensory disturbance, or even cause big
Urine and sex dysfunction drastically influence quality of life and the existence service life of patient.
Currently, metal dilator between the spinous process of clinical application or test, design concept is all in order to solve the problems, such as backbone
It is required that a degree of mobility is kept between Interspinalis spring and upper and lower spinous process, although this design can increase lumbar vertebrae
Mobility, but not due to stress between lumbar spinous process and internal fixation device and metallic in-laid object and host bone elasticity modulus
Match, especially the patient to those aged osteoporosises, can lead to fracture of spinous process, or even cause rare fracture of articular process, cause
Make operative failure, internal fixation device need to perform the operation taking-up between spinous process, finally make it is non-fused be changed to fusion, especially by dilator
It is implanted into interspinal process, fusion device is the specific structure for strutting size, and fusion device implantation is greater than with regard to needing to strut distance and is melted
Fusion device is put by the structure of clutch size to be supported again, is possible to cause secondary injury to backbone in this way, in particular, installation
The distance between posterior spinous process just strut specific size, cannot be adjusted according to the actual situation.
Summary of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, provide a kind of structure simple, easy to use, continuous expansion
Distance, therapeutic effect are good between big intervertebral foramen spinous process, mitigate patient suffering strut spinous process fusion Interal fixation system.
The technical solution adopted by the present invention to solve the technical problems is:
One kind can strut spinous process fusion Interal fixation system, it is characterised in that the system is by left spinous process fixed plate, right spinous process
Fixed plate and gradual change spreading mechanism composition, the left spinous process fixed plate middle part are equipped with left guiding square hole, left guiding square hole outside
Left spinous process fixed plate be equipped with positioning plate, the middle part of positioning plate is equipped with locking hole, and the both ends of left spinous process fixed plate are respectively equipped with
The middle part of steel needle, the right spinous process fixed plate is strutted equipped with corresponding with the left guiding square hole in left spinous process fixed plate for gradual change
The right guiding square hole that mechanism passes through, the side of right spinous process fixed plate are equipped with locking screw holes, locking gradual change are equipped in locking screw holes
The clamping screw of spreading mechanism, the both ends of the right spinous process fixed plate are respectively equipped with steel needle, the gradual change spreading mechanism by
Upper fagging, lower fagging, a left side struts block, the right side struts block and rotary screw composition, and the inside of the upper fagging and lower fagging is symmetrical
Equipped with slot is strutted, the both ends for strutting slot are respectively equipped with by the centroclinal guiding wedge surface in both ends, the upper fagging
It is respectively equipped with the inside both ends of the surface of lower fagging and struts rotary screw that slot is connected and pass through slot, the upper fagging and lower support
The both ends for strutting slot of intralamellar part are respectively equipped with that a left side struts block and the right side struts block, the left side strut block and the right upper end for strutting block and
Lower end is respectively equipped with and struts the sliding wedge surface that matches of slot both ends guiding wedge surface, and the left side struts block and the right side struts and sets in the middle part of block
There is the threaded hole passed through for rotary screw, rotary screw is equipped in threaded hole, one end of rotary screw passes through left spinous process fixed plate
On positioning plate in the middle part of locking hole and be connected with locking nut, the other end of rotary screw sequentially pass through left side rotation spiral shell
Bar passes through slot, a left side struts block, the right side struts block, the rotary screw on right side passes through slot and is equipped with swivel head, the rotary screw two
Side be equipped with make it is left strut block and it is right strut block while outward or the mutually opposing screw thread of medial movement, it is reversed in rotary screw
Passing through rotation under the action of screw thread is the left support for strutting block and strutting block with the right side while moving realization upper fagging and lower fagging outward
It drives into and realizes strutting between spinous process gap.
The front and back sides of upper fagging of the present invention are respectively equipped with guiding concave-board, and the one end for being oriented to concave-board is stretched out
Fagging, the other end is concordant with the end face of upper fagging, and the front and back sides on the lower fagging are equipped with to match with guiding concave-board
Lower fagging is stretched out in the guide plate of conjunction, one end of the guide plate, and the other end is connected with lower fagging, guide plate and guiding groove
It is distracted that guiding is played the role of in plate cooperation sliding.
The outside of guiding concave-board of the present invention is equipped with dovetail chute, and the inside of guide plate is equipped with matches with dovetail chute
The dovetail boss of conjunction, dovetail groove extend to the bottom of lower fagging inner support fluting, guarantee to make while guiding struts upper fagging and
Lower fagging realization is stably connected with.
Upper fagging of the present invention and lower fagging are equipped with plant hole, guarantee after the completion of operation struts out of plant hole
It is implanted into Bony union material, increases the stability of total.
Upper fagging of the present invention and the guiding wedge surface at lower fagging inner support fluting both ends are equipped with dovetail groove, described
A left side struts block and the right sliding wedge surface strutted on block is equipped with the dovetail boss matched with dovetail groove, while guaranteeing sliding
The stability of connection.
At least six steel nails are respectively equipped on the inside of the both ends of left spinous process fixed plate of the present invention and right spinous process fixed plate,
Every end of left spinous process fixed plate and right spinous process fixed plate does not arrange on the same line at least provided with three steel nails, three steel nails,
Guarantee the stability that left spinous process fixed plate and right spinous process fixed plate are connect with spinous process.
The present invention is due to using the above structure, having many advantages, such as.
Detailed description of the invention
Fig. 1 is the non-expanding structure schematic diagram of fixed system of the present invention.
Fig. 2 is fixed system expanding structure schematic diagram of the present invention.
Fig. 3 is the structural schematic diagram of left spinous process fixed plate in the present invention.
Fig. 4 is the structural schematic diagram of right spinous process fixed plate in the present invention.
Fig. 5 is gradual change spreading mechanism minimum spacing structural schematic diagram in the present invention.
Fig. 6 is gradual change spreading mechanism maximum pitch structure schematic diagram in the present invention.
Fig. 7 is upper fagging structural schematic diagram in Fig. 6
Fig. 8 is the left structural schematic diagram for strutting block in Fig. 6.
Fig. 9 is the right structural schematic diagram for strutting block in Fig. 6.
Figure 10 is the structural schematic diagram of rotary screw in Fig. 6.
Figure 11 is lower fagging structural schematic diagram in Fig. 6.
Specific embodiment
The following further describes the present invention with reference to the drawings:
As shown in the picture, one kind can strut spinous process fusion Interal fixation system, it is characterised in that the system is consolidated by left spinous process
Fixed board 1, right spinous process fixed plate 2 and gradual change spreading mechanism form, and left guiding square hole 3 is equipped in the middle part of the left spinous process fixed plate 1,
The left spinous process fixed plate in left 3 outside of guiding square hole is equipped with positioning plate 4, and the middle part of positioning plate 4 is equipped with locking hole 5, and left spinous process is solid
The both ends of fixed board 1 are respectively equipped with steel needle 6, and the middle part of the right spinous process fixed plate 2 is equipped with leads with the left side in left spinous process fixed plate 1
To the corresponding right guiding square hole 7 passed through for gradual change spreading mechanism of square hole 3, the side of right spinous process fixed plate 2 is equipped with locking screw
Hole 8, the interior clamping screw 9 for being equipped with locking gradual change spreading mechanism of locking screw holes 8, the both ends difference of the right spinous process fixed plate 2
Equipped with steel needle 6, the gradual change spreading mechanism struts block 12 by upper fagging 10, lower fagging 11, a left side, the right side struts block 13 and rotation spiral shell
Bar 14 forms, and the inside of the upper fagging 10 and lower fagging 11, which is symmetrically arranged with, struts slot 15, the both ends for strutting slot 15
It is respectively equipped with by the centroclinal guiding wedge surface 16 in both ends, the inside both ends of the surface difference of the upper fagging 10 and lower fagging 11
Equipped with strut rotary screw that slot 15 is connected and pass through slot 17, strut slot 15 inside the upper fagging 10 and lower fagging 11
Both ends be respectively equipped with that a left side struts block 12 and the right side struts block 13, the left side struts block 12 and the right top and bottom for strutting block 13 point
It She You not be oriented to the sliding wedge surface 18 that wedge surface 16 matches with 15 both ends of slot are strutted, the left side struts block 12 and the right side struts in block 13
Portion is equipped with the threaded hole 19 passed through for rotary screw, is equipped with rotary screw 14 in threaded hole 19, one end of rotary screw 14 passes through
The locking hole 5 at 4 middle part of positioning plate in left spinous process fixed plate 1 is simultaneously connected with locking nut 24, the other end of rotary screw 14
The rotary screw for sequentially passing through left side passes through slot 17, a left side struts block 12, the right side struts block 13, the rotary screw on right side passes through slot 17 simultaneously
Equipped with swivel head 20,14 two sides of rotary screw, which are equipped with, makes that a left side struts block 12 and the right side struts block 13 while outward or inside
Mobile mutually opposing screw thread, passing through rotation under the action of 14 reverse thread of rotary screw is that a left side struts block 12 and the right side struts
Block 13 moves outward simultaneously realizes upper fagging 10 and strutting for lower fagging 11 and then strutting between realization spinous process gap, described
The front and back sides of upper fagging 10 be respectively equipped with guiding concave-board 21, upper fagging 10 is stretched out in one end of guiding concave-board 21, another
End is concordant with the end face of upper fagging 10, and the front and back sides on the lower fagging 11 are equipped with and are oriented to what concave-board 21 matched
Lower fagging 11 is stretched out in guide plate 22, one end of the guide plate 22, and the other end is connected with lower fagging 11, guide plate 22 with lead
The outside for playing the role of being oriented to distracted, described guiding concave-board 21 to the cooperation sliding of concave-board 21 is equipped with dovetail chute, leads
The dovetail boss cooperated with dovetail chute is equipped with to the inside of plate 22, dovetail groove extends to the bottom of lower 11 inner support of fagging fluting,
Guaranteeing, which realizes upper fagging 10 and lower fagging 11 while guiding struts, is stably connected with, the upper fagging 10 and lower fagging 11
It is equipped with plant hole 23, guarantees to be implanted into Bony union material from plant hole 23 after the completion of operation struts, increases total
Stability, the upper fagging 10 and lower 11 inner support of fagging fluting both ends guiding wedge surface 16 be equipped with dovetail groove, it is described
A left side strut block 12 and the right sliding wedge surface 18 strutted on block 13 is equipped with the dovetail boss matched with dovetail groove, guarantee cunning
It is respectively equipped at least on the inside of the both ends of the stability connected while dynamic, the left spinous process fixed plate 1 and right spinous process fixed plate 2
Every end of six steel nails 6, left spinous process fixed plate 1 and right spinous process fixed plate 2 is at least provided with three steel nails 6, and three steel nails 6 are not same
It is arranged on one straight line, guarantees the stability that left spinous process fixed plate 1 and right spinous process fixed plate 2 are connect with spinous process.
Distracted spinous process is needed in the use of the present invention, being first placed on left spinous process fixed plate 1 and gradual change spreading mechanism
Between gap, the locking nut 24 for then slightly rotating left 1 left end of spinous process fixed plate makes rotary screw in gradual change spreading mechanism
14 can rotate, and then rotate rotary screw 14, make that the left side in gradual change spreading mechanism struts block 12 and the right side struts the outside sidesway of block 13
It is dynamic to strut fagging 10 and lower fagging 11 in turn, and then two adjacent spinous process are strutted, after the completion of strutting, to locking screw
Mother 24 is locked, and then fixed gradual change spreading mechanism, and right spinous process fixed plate 2 is then packed into gradual change spreading mechanism by right side again
On, then pass through pressurization machinery and pressurization fixation is carried out to left spinous process fixed plate 1 and right spinous process fixed plate 2, passing through after the completion of fixed
Right spinous process fixed plate 2 is locked on gradual change spreading mechanism by the clamping screw 9 in right spinous process fixed plate 2 in locking screw holes 8, then is led to
It crosses plant hole 23 and is implanted into Bony union material inwardly, and then that completes entire spinous process struts process.
Spinous process posterior plate of the present invention point or so two parts, left spinous process fixed plate 1 and the gradual change in middle position are supportted
Opening mechanism is connected, convenient for the initial position in intervention operation, by positioning plate 4 in rotary screw 14 and left spinous process fixed plate 1
Locking hole 5 position cooperation guarantee gradual change spreading mechanism and the position of left spinous process fixed plate 1 it is opposite constant, it is ensured that rotate spiral shell
The middle line of bar 14 is the consecutive variations of center developed dimension；Gradual change spreading mechanism may be implemented continuously to adjust size and secure support
Interspinous space position, two sides spinous process fixed plate have sharp steel needle 6, by pressurization after can firmly hammer into spinous process bottom with
The displacement of its sagittal plane is fixed, intermediate gradual change spreading mechanism realizes the consecutive variations branch of height under the rotation of rotary screw 14
Support spinous process simultaneously merges, and right spinous process fixed plate 2 and left 1 almost symmetry of spinous process fixed plate strut machine with left spinous process fixed plate 1 and gradual change
The entirety of structure separated state passes through hole cooperation by gradual change spreading mechanism in surgical procedure and symmetrically puts with left spinous process fixed plate 1
It sets, rotates intermediate rotary screw 14, a left side engaged therewith struts block 12 and the right side struts block 13 and distinguishes under the action of left-hand thread
It is translated to two sides, a left side struts block 12 and the right side struts block 13 and contacts with slot 15 is strutted for wedge surface, and a left side struts block 12 and the right side struts block 13
Upper fagging 10 and lower fagging 11 is pushed to move up and down along the planar contact pair that it is worked in coordination by contact surface while movement,
So that the rotary motion of rotary screw 14 is converted to the up and down motion of plane, while the self-locking function of screw thread makes fagging 10
It can play the role of securely supporting with lower fagging 11, the steel plate pressurization of two sides is fixed on spinous process by stand-by tool, last right spine
Prominent fixed plate is tightened with clamping screw locks two sides spinous process fixed plate mutually, stablizes support spinous process.
This fixed system is a kind of interspinal non-fixed instrument of pedicle screw auxiliary fusion of invasive methods implantation, it is logical
The small notch for crossing posterial spinal fusion segment position, side is attached to Interal fixation is merged on spinous process between spinous process, right
The characteristic of stock institutional framework destruction of backbone is minimum, and bleeding is few, extremely low to spinal cord and neural tissue injury's danger, operating technology safety letter
It is single, it is easy to overhaul, the bone grafting between merge steel plate is merged in the usual art of this kind of device of steel plate between spinous process, it is general to merge steel plate between spinous process
It is served only for the backbone of the non-cervical vertebra section of single segmental, with the maturation and diffusion of technology, clinical indication is also constantly expanding, and has
Many multi-segmentals superposition installation clinical use cases, this usual fixed system and anterior lumbar spinal fusing art, lumbar vertebra posterior-path fusion art,
Intervertebral foramen of lumbar vertebra approach fusion and lumbar vertebrae dypass fusion are used in combination, it fully and partially replaces the pedicle screw of the way of escape
Interior fixation, for this fixed system in action principle other than playing the role of merging fixed spinous process, itself substantially can be in body
Inside play the role of one and persistently strut fixator, expands intervertebral foramen so as to reach, mitigates disc herniation and alleviate nerve root
The purpose of compressing, is used alone this fixed system to treat the report of degeneration spinal lesion, spinal canal stenosis, disc herniation,
The clinical effectiveness that fabulous pain relief and function improve is obtained, can also be tied in art depending on the needs of the state of an illness and the judgment of patient
It closes execution titanium rete and Minor articulus figure fusion, clinic is mainly used for intervertebral disk retrogression lesion, lumber spondylolisthesis, spinal canal stenosis
With wound etc..
Claims (6)
1. one kind can strut spinous process fusion Interal fixation system, it is characterised in that the system is consolidated by left spinous process fixed plate, right spinous process
Fixed board and gradual change spreading mechanism composition, are equipped with left guiding square hole in the middle part of the left spinous process fixed plate, on the outside of left guiding square hole
Left spinous process fixed plate is equipped with positioning plate, and the middle part of positioning plate is equipped with locking hole, and the both ends of left spinous process fixed plate are respectively equipped with steel
The middle part of needle, the right spinous process fixed plate struts machine for gradual change equipped with corresponding with the left guiding square hole in left spinous process fixed plate
The right guiding square hole that structure passes through, the side of right spinous process fixed plate are equipped with locking screw holes, and locking gradual change support is equipped in locking screw holes
The clamping screw of opening mechanism, the both ends of the right spinous process fixed plate are respectively equipped with steel needle, and the gradual change spreading mechanism is by upper
Fagging, lower fagging, a left side struts block, the right side struts block and rotary screw composition, and the inside of the upper fagging and lower fagging is symmetrically set
Strut slot, the both ends for strutting slot are respectively equipped with by the centroclinal guiding wedge surface in both ends, the upper fagging and
The inside both ends of the surface of lower fagging are respectively equipped with and strut rotary screw that slot is connected and pass through slot, the upper fagging and lower fagging
The internal both ends for strutting slot are respectively equipped with that a left side struts block and the right side struts block, the left side strut block and the right upper end for strutting block and under
End is respectively equipped with and struts the sliding wedge surface that matches of slot both ends guiding wedge surface, and the left side struts block and the right side struts and is equipped in the middle part of block
For the threaded hole that rotary screw passes through, rotary screw is equipped in threaded hole, one end of rotary screw passes through in left spinous process fixed plate
Positioning plate in the middle part of locking hole and be connected with locking nut, the other end of rotary screw sequentially pass through left side rotary screw
Across slot, a left side strut block, the right side struts block, the rotary screw on right side passes through slot and are equipped with swivel head, the rotary screw two sides
Equipped with make it is left strut block and it is right strut block while outward or the mutually opposing screw thread of medial movement, in the reversed spiral shell of rotary screw
Under the action of line by rotation be it is left strut block and it is right strut block while moving outward realize strutting for above fagging and lower fagging
And then realize strutting between spinous process gap.
2. one kind according to claim 1 can strut spinous process fusion Interal fixation system, it is characterised in that the upper support
The front and back sides of plate are respectively equipped with guiding concave-board, and upper fagging, the end of the other end and upper fagging are stretched out in the one end for being oriented to concave-board
Face is concordant, and the front and back sides on the lower fagging are equipped with the guide plate matched with guiding concave-board, the guide plate
One end stretch out lower fagging, the other end is connected with lower fagging, and guide plate and guiding concave-board, which cooperate to slide, to be played guiding and strut
Effect.
3. one kind according to claim 2 can strut spinous process fusion Interal fixation system, it is characterised in that the guiding
The outside of concave-board is equipped with dovetail chute, and the inside of guide plate is equipped with the dovetail boss cooperated with dovetail chute, and dovetail groove extends
The bottom slotted to lower fagging inner support, guaranteeing, which realizes upper fagging and lower fagging while guiding struts, is stably connected with.
4. one kind according to claim 1 can strut spinous process fusion Interal fixation system, it is characterised in that the upper support
Plate and lower fagging are equipped with plant hole, guarantee to be implanted into Bony union material from plant hole after the completion of operation struts, increase whole
The stability of a structure.
5. one kind according to claim 1 can strut spinous process fusion Interal fixation system, it is characterised in that the upper support
Plate and the guiding wedge surface at lower fagging inner support fluting both ends are equipped with dovetail groove, and the left side struts block and the right cunning strutted on block
Dynamic wedge surface is equipped with the dovetail boss matched with dovetail groove, guarantees the stability connected while sliding.
6. one kind according to claim 1 can strut spinous process fusion Interal fixation system, it is characterised in that the left spine
At least six steel nails are respectively equipped on the inside of the both ends of prominent fixed plate and right spinous process fixed plate, left spinous process fixed plate and right spinous process are fixed
Every end of plate does not arrange on the same line at least provided with three steel nails, three steel nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136445.8U CN208243616U (en) | 2017-09-06 | 2017-09-06 | One kind can strut spinous process fusion Interal fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136445.8U CN208243616U (en) | 2017-09-06 | 2017-09-06 | One kind can strut spinous process fusion Interal fixation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208243616U true CN208243616U (en) | 2018-12-18 |
Family
ID=64618817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721136445.8U Withdrawn - After Issue CN208243616U (en) | 2017-09-06 | 2017-09-06 | One kind can strut spinous process fusion Interal fixation system |
Country Status (1)
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| CN (1) | CN208243616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485436A (en) * | 2017-09-06 | 2017-12-19 | 博能华医疗器械（北京）有限公司 | One kind can strut spinous process fusion Interal fixation system |
-
2017
- 2017-09-06 CN CN201721136445.8U patent/CN208243616U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485436A (en) * | 2017-09-06 | 2017-12-19 | 博能华医疗器械（北京）有限公司 | One kind can strut spinous process fusion Interal fixation system |
| CN107485436B (en) * | 2017-09-06 | 2023-07-21 | 博能华医疗器械（北京）有限公司 | Spinous process fusion steel plate fixing system capable of being opened |
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