CN201223436Y - Nail and pole device for dynamically fixing vertebra - Google Patents
Nail and pole device for dynamically fixing vertebra Download PDFInfo
- Publication number
- CN201223436Y CN201223436Y CNU2008201169591U CN200820116959U CN201223436Y CN 201223436 Y CN201223436 Y CN 201223436Y CN U2008201169591 U CNU2008201169591 U CN U2008201169591U CN 200820116959 U CN200820116959 U CN 200820116959U CN 201223436 Y CN201223436 Y CN 201223436Y
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- connecting rod
- screw
- elastomer
- lever apparatus
- packing ring
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Abstract
The utility model discloses a dynamic fixing vertebral screw rod device, which comprises a vertebral screw assembly and a connection rod, wherein the vertebral screw assembly includes a screw including a U-shaped groove connection end capable of allowing a screw fixing member to be screwed therein. The connection rod is accommodated in and connected with the U-shaped groove of the screw assembly under the compression of a screw fixing member. A shape for accommodating an elastic body is concavely formed in the surrounding walls on both sides and the bottom of the U-shaped groove. The connection rod keeps contact with the elastic body, and the screw fixing member is screwed in to achieve elastic buffer of the elastic body between the connection rod and the screw assembly.
Description
Technical field
This utility model relates to a kind of dynamic fixing spine nails lever apparatus, particularly relate to a kind of vertebra pedicle locations that is implanted to, with a plurality of nail groups this as movably fixedly connected, this vertebra is maintained a dynamic fixing, is not merged the dynamic fixing spine nails lever apparatus of state.
Background technology
Traditional spinal cord injury, if fix with pedicle of vertebral arch nail and connecting rod, all be with a titanium alloy or stainless stationary links, be connected in conjunction with the vertebra nail in the plural number implantation vertebra joint, and firmly hard mode is linked the fixing impaired vertebral segments that need be fixed by force.But it is fixing by force to hard mode so firmly, except that suitable stress relieving can't be provided, also can't produce fine motion to impaired vertebral segments stimulates, help damaged part stable to quicken the hypertrophy sclerotin, allow sufferer be in a kind of state that can only lie in bed or support with back of the body frame, restore intravertebral part original function that can't be suitable as quickly as possible for a long time.
And for example fruit is simple only links between each nail with the cable type connecting rod, two kinds of subject matters are then arranged, the firstth, the cable type connecting rod is too firm, then be as good as with aforementioned conventional titanium or rustless steel vertical bar shaped connecting rod, second if this cable type connecting rod is too soft, then be that suitable support force can't be provided, and this cable easy deformation.Moreover, if in online overcoat one stay pipe of this cable, then have the characteristic that this cable of forfeiture can provide flexibility, elasticity or flexibility again, so then be as good as with using general connecting rod again.
Therefore how effectively solve above-mentioned rigid fixing, stress relieving, connecting rod is really up to the mark, the cable connecting rod is crossed problems such as soft, sets about just having the dynamic fixing spine nails lever apparatus of this case to invent so that thinking such as effectively address the above problem then change design by the pedicle of vertebral arch nail.
The utility model content
This utility model provides a kind of dynamic fixing spine nails lever apparatus, and it is existing rigid fixing that it has overcome background technology spine nails lever apparatus, stress relieving, and connecting rod is really up to the mark, the cable connecting rod is crossed problems such as soft.
A purpose of the present invention is providing a kind of dynamic fixing spine nails lever apparatus.
Another object of the present invention is providing an a kind of spine nails group and connecting rod of comprising, and is equipped with one or more elastomer in the nail part of this nail group, can make the dynamic fixing spine nails lever apparatus that has elastic buffer between this nail group and this connecting rod.
Another purpose of the present invention is providing a kind of this elastomer further to can be the relative shell fragment of an arc, or coil spring, or hollow, the elastomeric dynamic fixing spine nails of non-hollow plastic lever apparatus.
A further object of the present invention, an a kind of movable fit spine nails group and connecting rod that comprise is being provided, one screw of this nail group is half bulb-type screw, and a packing ring of this nail group does not directly contact this screw hemisphere capitiform end, this nail group and the timing of this connecting rod institute, it is movable banded dynamic fixing spine nails lever apparatus that inside still has a space.
One of technical scheme that its technical problem that solves this utility model adopts is:
A kind of dynamic fixing spine nails lever apparatus, it comprises a spine nails group and a connecting rod, and this spine nails group comprises a nail part and a screw tightening, and this nail spare has a socket end, and this socket end is established a U-lag, can be screwed into by ccontaining this screw tightening.This connecting rod is placed in this U-lag, be linked on this nail spare by this screw tightening packing.Reach bottom land in these U-lag two side enclosure wall, all be arranged with an accommodation space, an interior ccontaining elastomer, this connecting rod place this U-lag and these elastomers of contact, this screw tightening is screwed into this nail spare of packing and this connecting rod, and these elastomers make tool elastic buffer between this connecting rod and nail part.
In the preferred embodiment of the present utility model, this elastomer further is the relative shell fragment of an arc, and this arc spring lamination contact both sides should be followed closely part socket end and this connecting rod, can provide elastic force to keep the binding balance when suffering oppression distortion.
In the preferred embodiment of the present utility model, this elastomer further is a coil spring, and this both ends of the spring contacts this nail spare socket end and this connecting rod, can provide elastic force to keep the binding balance when suffering oppression distortion.
In the preferred embodiment of the present utility model, this elastomer further is a plastics elastic body, and this plastics elastic body contact both sides should be followed closely part socket end and this connecting rod, can provide elastic force to keep the binding balance when suffering oppression distortion.
In the preferred embodiment of the present utility model, this plastics elastic body is a hollow plastic elastomer, and having a hollow space when suffering oppression can be for distortion.
Two of the technical scheme that its technical problem that solves this utility model adopts is:
A kind of dynamic fixing spine nails lever apparatus, it comprises a spine nails group and a connecting rod.This spine nails group comprises a U-lag stacker and a screw that movably wears, and a packing ring and a screw tightening, and this stacker can be inserted for this packing ring, and this screw tightening is screwed into combination.This connecting rod is inserted in this U-lag, linked by this screw tightening packing and fixes this packing ring and this stacker.This screw is half bulb-type screw, and this packing ring does not directly contact this screw hemisphere capitiform end, and this screw tightening packing still has space-movable binding when fixing this stacker, connecting rod and this packing ring between this packing ring, stacker and this screw hemisphere capitiform end.
In the preferred embodiment of the present utility model, on the two side enclosure wall faces of this stacker U-lag, all be arranged with an arc accommodation space, these packing ring two ends can be placed in this arc space, this screw tightening is oppressed this connecting rod and this packing ring, reach this packing ring and then be sticked in this arc space, and this stacker of packing.
In the preferred embodiment of the present utility model, in the space between this packing ring, stacker and this screw hemisphere capitiform end, the elastomer of further can packing into makes the stable binding of these inter-modules.
In the preferred embodiment of the present utility model, this soft elastomer further is the soft elastomer of plastics, can insert stable binding the in this space.
In the preferred embodiment of the present utility model, the soft elastomer of these plastics further is the soft elastomer of a hollow plastic, can insert stable binding the in this space.
In the preferred embodiment of the present utility model, this soft elastomer further is a sponge block, can insert stable binding the in this space.
The relative position that is defined in this utility model as upper and lower, side etc., refers to hand-held this dynamic fixing spine nails lever apparatus entire combination, with reference to the user cephalad direction is last, otherwise the foot direction is for down, and with respect to the periphery of these upper and lower two ends, then is the side.
The technical program is compared with background technology: the technical program can effectively solve the rigid fixing of background technology spine nails lever apparatus, stress relieving, and connecting rod is really up to the mark, the cable connecting rod is crossed problems such as soft.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further specified.
Fig. 1 a has illustrated the schematic perspective view of the dynamic fixing spine nails lever apparatus of a preferred embodiment.
The master that Fig. 1 b has illustrated the dynamic fixing spine nails lever apparatus of a preferred embodiment looks sketch map.
Fig. 1 c has illustrated the partial cutaway schematic of the socket end of a preferred embodiment.
Fig. 2 a has illustrated the partial cutaway schematic of the socket end of a preferred embodiment, and the elastomer of being put in it is the relative shell fragment of arc arc.
Fig. 2 b has illustrated the partial cutaway schematic of the socket end of a preferred embodiment, and the elastomer of being put in it is a coil spring.
Fig. 2 c has illustrated the partial cutaway schematic of the socket end of a preferred embodiment, and the elastomer of being put in it is a plastics elastic body.
Fig. 3 a has illustrated one of the three-dimensional exploded view of the dynamic fixing spine nails lever apparatus of a preferred embodiment.
Fig. 3 b illustrated a preferred embodiment dynamic fixing spine nails lever apparatus three-dimensional exploded view two.
Fig. 4 a has illustrated the generalized section of the dynamic fixing spine nails lever apparatus of another preferred embodiment, and its half bulb-type screw and other inter-module have a space.
Fig. 4 b has illustrated the generalized section of the dynamic fixing spine nails lever apparatus of another preferred embodiment, and its half bulb-type screw and other inter-module have a space, can insert an elastomer in this space.
Fig. 4 c has illustrated the local enlarged diagram of Fig. 4 a.
What Fig. 5 had illustrated these dynamic fixing spine nails lever apparatus respectively is implanted to preferred embodiment sketch map between a vertebra vertebral body.
The primary clustering symbol description
10 dynamic fixing spine nails lever apparatus
20 spine nails groups, 21 nail parts
22 screw tightenings, 211 socket ends
213 liang of side enclosure wall of 212 U-lags
214 bottom lands, 30 connecting rods
The relative shell fragment of 40 elastomers, 41 arcs
42 coil springs, 43 plastics elastic bodies
44 hollow plastic elastomers, 441 hollow spaces
50 another dynamic fixing spine nails lever apparatus
60 spine nails groups, 61 stackers
62 screws, 63 packing rings
64 screw tightenings, 611 U-lags
612 liang of side enclosure wall 621 hemisphere capitiform ends
70 spaces, 631 packing ring two ends
71 elastomers, 80 vertebra vertebral bodys
81 vertebra vertebral bodys
The specific embodiment
Please refer to Fig. 1 a, Fig. 1 b and Fig. 1 c, this dynamic fixing spine nails lever apparatus 10, it comprises a spine nails group 20 and a connecting rod 30.
This spine nails group 20 comprises a nail part 21 and a screw tightening 22, and a socket end 211 of this nail spare 21 is established a U-lag 212, can be screwed into by ccontaining this screw tightening 22.This connecting rod 30 can be placed in earlier in this U-lag 212, and the top is subjected to this screw tightening 22 to be screwed into packing again, and fixedly connected on this nail part 21.
U-lag two side enclosure wall of this socket end 211 interior 213 and bottom land 214 all are arranged with an accommodation space more again, and an interior ccontaining rubber-like elastomer 40 (being regardless of the elastomer form).
So, after this connecting rod 30 is inserted this U-lag 212, just can be in both sides and the bottom surface contact these elastomers 40, and this screw tightening 22 is when being screwed into this nail spare of packing 21 with this connecting rod 30, these elastomers 40 can make this connecting rod 30 and 21 tool elastic buffers of nail part, and can be used as the banded spine nails bar of dynamic fixing composite set.
Please refer to Fig. 2 a, this dynamic fixing spine nails lever apparatus 10, wherein this elastomer 40 further can be the relative shell fragment 41 of an arc, this arc spring lamination 41 contacts relatively with cambered surface in twos, form the elastomer of an approximate ellipsoidal, its contact both sides should be followed closely part socket end 211 and this connecting rod 30, can provide elastic force to keep this nail spare 21 when suffering oppression distortion and link balances with this connecting rod 30.
Please refer to Fig. 2 b, or this elastomer further can be a coil spring 42, this spring contacts this nail spare socket end 211 and this connecting rod 30 respectively in two ends about in the of 42, also can provide elastic force to keep this nail spare 21 and this connecting rod 30 binding balances when suffering oppression distortion.
Please refer to Fig. 2 c, again this elastomer or may further be a plastics elastic body 43 (cylindricality, sphere, or other is multi-form; Sponge, TPU, PE, or other different elasticity of plastics materials), these plastics elastic body 43 contact both sides should be followed closely part socket end 211 and this connecting rod 30, also can provide elastic force to keep this nail spare 21 when suffering oppression distortion and link balances with this connecting rod 30.
Or this plastics elastic body is a hollow plastic elastomer 44, and having a hollow space 441 when suffering oppression can provide elasticity for distortion.
Please refer to Fig. 3 a, Fig. 3 b, this another kind dynamic fixing spine nails lever apparatus 50, it comprises a spine nails group 60, comprise the stacker 61 and the screw 62 that movably wear, and a packing ring 63 and a screw tightening 64, in one U-lag 611 of this stacker 61, can insert for this screw 62 and this packing ring 63, and this screw tightening 64 is screwed into combination;
And also comprise a connecting rod 30 identical with previous embodiment, can insert in this U-lag 611, and be subjected to this screw tightening 64 packings binding to fix this packing ring 63 and this stacker 61.
Please refer to Fig. 4 a, Fig. 4 c, this screw 62 is half bulb-type 621 screw, and this packing ring 63 does not directly contact and oppress the hemisphere capitiform end 621 of this screw, and therefore the movable property of appropriateness can be provided.And these screw tightening 64 packings are when fixing this stacker 61, connecting rod 30 and this packing ring 63, and this packing ring 63, stacker 61 and this screw 62 621 at hemisphere capitiform ends still have a space 70 as movable binding.
And on the two side enclosure wall faces of this stacker U-lag 611, all be arranged with an arc accommodation space 612 (for cooperating the outer marginal circumference radian of this packing ring 63), this packing ring 63 (two ends 631) can be placed in this arc space 612, therefore, when these screw tightening 64 these connecting rods 30 of compressing and this packing ring 63, and this packing ring 63 (two ends 631) then is sticked in this arc space 612, and combining of packing and this stacker 61 indirectly.
Among Fig. 4 b, wherein in the space 70 of 621 at this packing ring 63, stacker 61 and this screw hemisphere capitiform end, the elastomer 71 of further can packing into makes that these inter-modules are stable to be linked.
And this elastomer 71 further can be the soft elastomer of a hollow or non-hollow, plastics or non-plastics, can insert stable binding the in this space 70, and the soft elastomer 71 of these plastics further can be a sponge block, TPU plastics, PE plastics etc., can insert in this space 70 elasticity is provided, keep this screw tightening 64, packing ring 63, stacker 61, connecting rod 30 and 62 on this screw and stablize banded elastomer.
Among Fig. 5, the dynamic fixing spine nails lever apparatus 10,50 of these two kinds of forms, but all single form uses in groups, or different, or mix in the dynamic fixing binding that is used in a vertebra spinal vertebral 80,81 in groups.
When this kind dynamic fixing spine nails lever apparatus 10 is fixed on this vertebra vertebral body 80,30 of this spine nails group 20 and this connecting rods, though screw tight fixedly connected by this screw tightening 22, but in the socket end 211 because of this nail group nail part 21, have a plurality of elastomers 40, with this connecting rod 30 fixedly the time, has elastic buffer, and make this nail group 20 have fine motion with this connecting rod 30, even be able to 80 of these connecting rod 30 placed in-line respectively these vertebra vertebral bodys indirectly, have fine motion, be unlikely to be completely fixed deadlock, form the phenomenon that merges between vertebral body.
And this another kind dynamic fixing spine nails lever apparatus 50, when being fixed on this vertebra vertebral body 81, the space 70 that this hemisphere capitiform screw 62 and this nail group stacker 61,63 on packing ring are reserved forms a relief area.Therefore, though this spine nails group 60 and this connecting rod 30 all because of this screw tightening 64 is locked, should be implanted fixed vertebra vertebral body 81 by screw 62, and between the vertebral body of other sections, but still have movable property to a certain degree, can not be completely fixed motionlessly, cause the vertebral fusion phenomenon.
The above, it only is this utility model preferred embodiment, so can not limit the scope that this utility model is implemented with this, i.e. the equivalence of doing according to this utility model claim and description changes and modifies, and all should still belong in the scope that this utility model patent contains.
Claims (10)
1. dynamic fixing spine nails lever apparatus, it is characterized in that: it comprises:
One spine nails group, it comprises nail part and a screw tightening, and this nail spare has a socket end, and this socket end is provided with a U-lag that can ccontaining this screw tightening be screwed into; And
One connecting rod, it is placed in this U-lag, and this screw tightening is screwed into this U-lag and this connecting rod of packing is linked on this nail spare; Reach bottom land in these U-lag two side enclosure wall, all be arranged with an accommodation space, an interior ccontaining elastomer, this connecting rod place this U-lag and this elastomer of contact, this screw tightening is screwed into and this nail spare of packing and this connecting rod, and this elastomer is located between this connecting rod and nail part and the tool elastic buffer.
2. a kind of dynamic fixing spine nails lever apparatus according to claim 1, it is characterized in that: this elastomer the time can provide elastic force to link the relative shell fragment of equilibrated arc to keep for the distortion that suffers oppression, and this arc spring lamination contact both sides should nail part socket end and this connecting rod.
3. a kind of dynamic fixing spine nails lever apparatus according to claim 1 is characterized in that: this elastomer the time can provide elastic force to link equilibrated coil spring to keep for the distortion that suffers oppression, and this both ends of the spring contacts this nail spare socket end and this connecting rod.
4. a kind of dynamic fixing spine nails lever apparatus according to claim 1, it is characterized in that: this elastomer the time can provide elastic force to link equilibrated plastics elastic body to keep for the distortion that suffers oppression, and this plastics elastic body contact both sides should nail part socket end and this connecting rod.
5. a kind of dynamic fixing spine nails lever apparatus according to claim 4 is characterized in that: this plastics elastic body be one have a hollow space when suffering oppression can be for the hollow plastic elastomer of distortion.
6. dynamic fixing spine nails lever apparatus, it is characterized in that: it comprises:
One spine nails group, it comprises a U-lag stacker and a screw that movably wears, and a packing ring and a screw tightening, and this stacker is inserted for this packing ring, and this screw tightening is screwed into combination;
One connecting rod, it is inserted in this U-lag, and this screw tightening is screwed into this U-lag and this packing ring and this stacker are fixed in this connecting rod binding of packing; This screw is half bulb-type screw, and this packing ring does not directly contact this screw hemisphere capitiform end, and this screw tightening packing still has space-movable binding when fixing this stacker, connecting rod and this packing ring between this packing ring, stacker and this screw hemisphere capitiform end.
7. a kind of dynamic fixing spine nails lever apparatus according to claim 6, it is characterized in that: on the two side enclosure wall faces of this stacker U-lag, all be arranged with an arc accommodation space, these packing ring two ends are placed in this arc space, this screw tightening is oppressed this connecting rod and this packing ring, reach this packing ring and then be sticked in this arc space, and this stacker of packing.
8. a kind of dynamic fixing spine nails lever apparatus according to claim 6 is characterized in that: in the space between this packing ring, stacker and this screw hemisphere capitiform end, and pack into and one make these inter-modules stablize banded elastomer.
9. a kind of dynamic fixing spine nails lever apparatus according to claim 8 is characterized in that: this soft elastomer is the soft elastomer of plastics of stablizing banded hollow or non-hollow, and it is inserted in this space.
10. a kind of dynamic fixing spine nails lever apparatus according to claim 8 is characterized in that: this soft elastomer is to stablize banded sponge block, and it is inserted in this space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201169591U CN201223436Y (en) | 2008-05-22 | 2008-05-22 | Nail and pole device for dynamically fixing vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201169591U CN201223436Y (en) | 2008-05-22 | 2008-05-22 | Nail and pole device for dynamically fixing vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201223436Y true CN201223436Y (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201169591U Expired - Lifetime CN201223436Y (en) | 2008-05-22 | 2008-05-22 | Nail and pole device for dynamically fixing vertebra |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201223436Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836001A (en) * | 2012-09-14 | 2012-12-26 | 苏州艾迪尔医疗器械有限公司 | Universal coaptation nail for minimally invasive surgery |
| CN103431903A (en) * | 2013-09-03 | 2013-12-11 | 北京飞渡朗颐医疗器械有限公司 | Anti-loose screw plug, spine screw rod fixation device and spine screw rod fixation system |
| CN105434087A (en) * | 2016-01-13 | 2016-03-30 | 吴同申 | Dynamic pre-stressed clamping device for spine implant and mounting method thereof |
| CN105455927A (en) * | 2016-01-13 | 2016-04-06 | 吴同申 | Two-way pre-stress clamping device used for spine implant and installing method thereof |
| CN110141344A (en) * | 2019-06-08 | 2019-08-20 | 何静 | A kind of flexible constraint formula pedicle nail of anti-explosion filaments |
-
2008
- 2008-05-22 CN CNU2008201169591U patent/CN201223436Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836001A (en) * | 2012-09-14 | 2012-12-26 | 苏州艾迪尔医疗器械有限公司 | Universal coaptation nail for minimally invasive surgery |
| CN103431903A (en) * | 2013-09-03 | 2013-12-11 | 北京飞渡朗颐医疗器械有限公司 | Anti-loose screw plug, spine screw rod fixation device and spine screw rod fixation system |
| CN103431903B (en) * | 2013-09-03 | 2016-01-20 | 北京飞渡朗颐医疗器械有限公司 | A kind of locking plug screw, spine nail bar fixing device and spine nail rod fixed system |
| CN105434087A (en) * | 2016-01-13 | 2016-03-30 | 吴同申 | Dynamic pre-stressed clamping device for spine implant and mounting method thereof |
| CN105455927A (en) * | 2016-01-13 | 2016-04-06 | 吴同申 | Two-way pre-stress clamping device used for spine implant and installing method thereof |
| CN105434087B (en) * | 2016-01-13 | 2017-09-29 | 贵州省黔南布依族苗族自治州中医医院 | A kind of spinal implant dynamic prestressing force clamping device and its installation method |
| CN110141344A (en) * | 2019-06-08 | 2019-08-20 | 何静 | A kind of flexible constraint formula pedicle nail of anti-explosion filaments |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |
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| CX01 | Expiry of patent term |