CN205586063U - Extensive region vertebra cantle fixing device - Google Patents
Extensive region vertebra cantle fixing device Download PDFInfo
- Publication number
- CN205586063U CN205586063U CN201620249717.4U CN201620249717U CN205586063U CN 205586063 U CN205586063 U CN 205586063U CN 201620249717 U CN201620249717 U CN 201620249717U CN 205586063 U CN205586063 U CN 205586063U
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- CN
- China
- Prior art keywords
- hole
- fixing device
- arch
- fixed plate
- hold
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an extensive region vertebra cantle fixing device, including a fixed plate, the fixed plate is arch -shaped, the fixed plate surface is equipped with a plurality of set screw's of packing into locating hole, has connect the fin at arch -shaped 's both ends, movably is provided with the hold assembly that is used for the centre gripping hold -down bars on the fin. The utility model discloses the utilization is fixed on the vertebra of extensive region with the arch -shaped 's of the crooked looks adaptation of extensive region vertebra physiology fixed plate, and hold assembly movably sets up on the pterygoid lamina at fixed plate both ends, can adjust the orientation and the position of hold assembly according to the set screw's on dentata, the centrum below the vertebra of extensive region position needs, has consequently made things convenient for the screw on hold -down bars this fixing device of connection and dentata, the centrum, constitutes strong nail stick and fixes. The utility model discloses the way of escape fixation treatment who can be used to extensive region dentata dislocation.
Description
Technical field
This utility model relates to medical apparatus and instruments articles for use field, particularly relates to a kind of arch of posterior atlas fixing device.
Background technology
Atlantoaxial dislocation many employings screw-rod technique for fixing, needs at atlas and dentata pedicle screw respectively.In these nail-stick systems, screw is beaten in the dentata below atlas and atlas or vertebral body, afterwards with hold-down bars along longitudinally connected screw.
But execute in art actual, it is sometimes difficult on atlas, complete lateral mass of atlas or Atlas vertebral pedicle screw is fixed, and it is fixing to form Atlantoaxial nail rod.
Utility model content
In order to solve the problems referred to above, the purpose of this utility model is to provide a kind of arch of posterior atlas fixing device, executes art and gets up convenient.
This utility model be the technical scheme is that
A kind of arch of posterior atlas fixing device, including a fixed plate, described fixed plate is dome-shaped, and described fixed plate surface is provided with some holes, location loading fixing screw, it is terminated with fin in the two of dome-shaped, described fin is provided with hold assembly for gripping rod movably.
As further improvement of the utility model, hole, described location is sequentially arranged along the circular arc direction of fixed plate.
As further improvement of the utility model, hole, described location includes circular hole and/or slotted hole.
As further improvement of the utility model, described fin is provided with through hole, described hold assembly includes being limited in the spacer of fin side, being limited in the clamping head of fin opposite side, connection spacer and the cervical region of clamping head, and described cervical region is rotatably received in interior and cervical region the outer wall of through hole and there is gap with through-hole wall.
As further improvement of the utility model, the end face of described clamping head is provided with internal thread hole, and the sidewall of described internal thread hole offers the U-type groove crossed for hold-down bars, and described internal thread hole female thread is connected to the locking nut being locked in U-type groove by hold-down bars.
As further improvement of the utility model, the outer wall of described clamping head is drum type, and the maximum outside diameter of clamping head is more than the aperture of through hole.
As further improvement of the utility model, the profile of described spacer cross section is circular, and the diameter of this circle is more than the aperture of through hole.
The beneficial effects of the utility model are: this utility model utilizes the fixed plate of the dome-shaped suitable with atlas physiological bending to be fixed on atlas, hold assembly is movably disposed on the wing plate at fixed plate two ends, can according to dentata below atlas, the position of epicentral fixing screw need to adjust hold assembly towards and position, therefore facilitate hold-down bars and connect this fixing device and dentata, epicentral screw.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is that master of the present utility model regards and partial sectional view；
Fig. 2 is vertical view of the present utility model and partial sectional view；
Fig. 3 is the schematic diagram that this utility model connects hold-down bars；
Fig. 4 is the fixing device schematic diagram after hold assembly rotates；
Fig. 5 is the fixing device schematic diagram after hold assembly displacement.
Detailed description of the invention
Arch of posterior atlas fixing device as shown in Figures 1 to 5, including a fixed plate 1, fixed plate 1 is the dome-shaped mated with atlas physiological bending, is used for being close to atlas surface and fixing.Fixed plate 1 surface is provided with hole, some location 2, and location can be inserted into fixing screw 21 in hole 2, and fixed plate 1, in atlas, is securely attached on atlas by these 21 dozens, fixing screws.It is connected to fin 3 at the two ends of dome-shaped respectively, described fin 3 is provided with hold assembly 5 for gripping rod 4 movably.Hold assembly 5 can be used for clamping the hold-down bars in nail-stick system, and grips excellent top, and middle part and the bottom of hold-down bars are fixed by the upper screw clamping beaten of the dentata below atlas or vertebral body.Owing to hold assembly 5 is mobilizable, even if screw is played in therefore different on dentata, vertebral body positions, hold assembly 5 can be adjusted to suitable position, make hold-down bars 4 all can be coupled together by screw everywhere.
Preferably, hole 2, location is sequentially arranged, in general with the symmetrical distribution in fixed plate 1 center along the circular arc direction of fixed plate 1.
It is further preferred that hole 2, location can be with all circular holes, or all slotted holes, can also be part be circular hole, part is slotted hole.Use slotted hole as hole, location, it is easier to adjust fixing screw squeezes into position.
Hold assembly 5 is below described.
Being equipped with through hole 6 on every fin 3, hold assembly 5 includes being limited in the spacer 51 of fin 3 side, being limited in the clamping head 52 of fin 3 opposite side, and connects the cervical region 53 of spacer 51 and clamping head 52.Spacer 51 cannot pass through hole 6, and equally, the entirety of clamping head 52 also cannot pass through hole 6.Described cervical region 53 is constriction in hold assembly 5, and it is rotatably received in through hole 6, and the outer wall of cervical region 53 exists gap with through hole 6 inwall.To this end, with reference to Fig. 1 and Fig. 5, hold assembly 5 can translate a bit of relative to through hole about 6, it is also possible to lifts a small distance relative to through hole 6；Equally, referring to figs. 2 to Fig. 4, hold assembly 5 can make the rotation of 360 degree relative to through hole 6, is clamped in interior hold-down bars 4 and is possible not only to be perpendicular to fixed plate 1, it is also possible to has a certain degree with fixed plate 1.Below be all conducive to accepting the screw squeezed in dentata, vertebral body.
Preferably, with reference to the cross sectional portion in Fig. 1 and Fig. 2, the end face of clamping head 52 is provided with internal thread hole 54, and the sidewall of internal thread hole 54 offers the U-type groove 55 crossed for hold-down bars 4, and internal thread hole 54 female thread is connected to the locking nut 56 being locked in U-type groove 55 by hold-down bars 4.The bottom of hold-down bars 4 is supported by the bottom face of U-type groove 55, and the top of hold-down bars 4 can be compressed by locking nut 56, is clamped in by hold-down bars 4 between locking nut 56 and U-type groove 55 bottom face.
Preferably, with reference to Fig. 1, the outer wall of clamping head 52 is drum type, and the maximum outside diameter of clamping head 52 is more than the aperture of through hole 6, and therefore clamping head 52 cannot pass through hole 6.Make it addition, clamping head 52 can use plastic cement etc. to have certain elastic material, then after it radially being extruded, external diameter reduction can be assembled and be penetrated through hole 6.
Preferably, the profile of spacer 51 cross section is circular, and the diameter of this circle is more than the aperture of through hole 6, and therefore spacer 51 cannot pass through hole 6.
Further, with reference to Fig. 1, the bottom face of clamping head 52 has a screw leading to internal thread hole 54, can load in screw from top to bottom from internal thread hole 54 with the screw 57 of screw assembling, thus is connected by clamping head 52 fixing with vertebrae.
The above be this utility model preferred embodiment, it is not intended that the restriction to this utility model protection domain.
Claims (7)
1. an arch of posterior atlas fixing device, including a fixed plate (1), it is characterized in that: described fixed plate (1) is dome-shaped, described fixed plate (1) surface is provided with some holes, location (2) loading fixing screw, it is terminated with fin (3) in the two of dome-shaped, described fin (3) is provided with hold assembly (5) for gripping rod (4) movably.
Arch of posterior atlas fixing device the most according to claim 1, it is characterised in that: hole, described location (2) is sequentially arranged along the circular arc direction of fixed plate (1).
Arch of posterior atlas fixing device the most according to claim 1, it is characterised in that: hole, described location (2) includes circular hole and/or slotted hole.
4. according to the arch of posterior atlas fixing device described in claim 1 or 2 or 3, it is characterized in that: described fin (3) is provided with through hole (6), described hold assembly (5) includes being limited in the spacer (51) of fin (3) side, being limited in the clamping head (52) of fin (3) opposite side, connection spacer (51) and the cervical region (53) of clamping head (52), and described cervical region (53) is rotatably received in interior and cervical region (53) the outer wall of through hole (6) and there is gap with through hole (6) inwall.
Arch of posterior atlas fixing device the most according to claim 4, it is characterized in that: the end face of described clamping head (52) is provided with internal thread hole (54), the sidewall of described internal thread hole (54) offers the U-type groove (55) crossed for hold-down bars (4), and described internal thread hole (54) female thread is connected to the locking nut (56) being locked in U-type groove (55) by hold-down bars (4).
Arch of posterior atlas fixing device the most according to claim 4, it is characterised in that: the outer wall of described clamping head (52) is drum type, and the maximum outside diameter of clamping head (52) is more than the aperture of through hole (6).
Arch of posterior atlas fixing device the most according to claim 4, it is characterised in that: the profile of described spacer (51) cross section is circular, and the diameter of this circle is more than the aperture of through hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249717.4U CN205586063U (en) | 2016-03-28 | 2016-03-28 | Extensive region vertebra cantle fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249717.4U CN205586063U (en) | 2016-03-28 | 2016-03-28 | Extensive region vertebra cantle fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205586063U true CN205586063U (en) | 2016-09-21 |
Family
ID=56922289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620249717.4U Expired - Fee Related CN205586063U (en) | 2016-03-28 | 2016-03-28 | Extensive region vertebra cantle fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205586063U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667565A (en) * | 2017-01-17 | 2017-05-17 | 倪斌 | Lateral mass fixing device of pedicle screw |
| CN106901819A (en) * | 2017-01-17 | 2017-06-30 | 倪斌 | A kind of vertebral plate bracing means |
-
2016
- 2016-03-28 CN CN201620249717.4U patent/CN205586063U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667565A (en) * | 2017-01-17 | 2017-05-17 | 倪斌 | Lateral mass fixing device of pedicle screw |
| CN106901819A (en) * | 2017-01-17 | 2017-06-30 | 倪斌 | A kind of vertebral plate bracing means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20180328 |