CN203873854U - Horizontal connecting device - Google Patents
Horizontal connecting device Download PDFInfo
- Publication number
- CN203873854U CN203873854U CN201420149797.7U CN201420149797U CN203873854U CN 203873854 U CN203873854 U CN 203873854U CN 201420149797 U CN201420149797 U CN 201420149797U CN 203873854 U CN203873854 U CN 203873854U
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- China
- Prior art keywords
- connecting rod
- caliper
- rotating shaft
- tranverse connecting
- hook
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Abstract
The utility model discloses a horizontal connecting device which comprises a cross beam, a first horizontal connecting hook and a second horizontal connecting hook. The first horizontal connecting hook is connected to one end of the cross beam through a first rotating shaft, and the second horizontal connecting hook is connected to the other end of the cross beam through a second rotating shaft. The first horizontal connecting hook and the second horizontal connecting hook are connected to the cross beam through the rotating shafts respectively so that the first horizontal connecting hook and the second horizontal connecting hook can rotate (swing) relative to the cross beam so as to be adaptive to titanium bars with different inclination angles, interference of the horizontal connecting hooks and the titanium bars is avoided, and the titanium bars can be better fixed.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of cross-connecting apparatus.
Background technology
When intervertebral disc degeneration or the slippage of little joint or regression, cause intervertebral height to be lost, rear structure is unstable, thereby cause intervertebral foramina and vertebral foramen narrow, and this narrow spinal nerves or the nerve root of can oppressing causes the symptoms such as patient's lumbago and skelalgia, numbness, have a strong impact on patient's quality of life.
Fusion between interbody fusion or spinous process, can recover intervertebral height, reduces the pressure of neuromechanism.Can adopt fusion device, various tabular devices and pedicle screw system are fixed vertebra.First pedicle screw is implanted to lumbar vertebra vertebra both sides, generally on vertebra, implant 4 pedicle screws, both sides are respectively implanted two, two screws of homonymy are setting up and down, then between two pairs of two screws setting up and down, set up titanium rod respectively, for supporting lumbar vertebra, between two titanium rods, need a cross-connecting apparatus that two titanium rods are coupled together, to limit relatively moving between two titanium rods.In the art, cross-connecting apparatus is also referred to as horizontal connected device, as described in Chinese patent CN201320320410.5.
Cross-connecting apparatus of the prior art, its structure generally comprises two horizontal hooks that connect that are connected, and the horizontal hook that connects is for hook embedding titanium rod, and horizontal company on hook is provided with screwed hole, by support pin, be screwed in the screwed hole of horizontal even hook, cross-connecting apparatus be fixed on the connection titanium rod of spinal fusion device.Yet due in most of the cases, titanium rod to be connected is also not parallel, interfering appears in horizontal the company between hook and titanium rod that causes cross-connecting apparatus, by force the horizontal hook hook that connects is embedded on titanium rod, can produce the stress that changes the excellent desired location of titanium.Postoperative under the stressing conditions such as vibrations, may cause the horizontal skew that connects hook position, produce the situation of the solid failures such as horizontal connected device slippage, and then change the pressure that spinal column is subject to.
Therefore, those skilled in the art is devoted to develop and a kind ofly can effectively adapts to titanium rod angle of inclination and can carry out effectively fixing horizontal connected device to titanium rod.
Utility model content
Because the above-mentioned defect of prior art is effectively fixed this technical problem in order to solve to the titanium rod of differing tilt angles, this utility model provides a kind of fixing cross-connecting apparatus of titanium rod that is applicable to.
For achieving the above object, a kind of cross-connecting apparatus that this utility model provides, comprise crossbeam, the first horizontal hook and the second horizontal hook that connects of connecting, described the first horizontal hook that connects is connected to one end of described crossbeam by the first rotating shaft, and described the second horizontal hook that connects is connected to the other end of crossbeam by the second rotating shaft.The first horizontal even hook and the second horizontal hook that connects in this utility model are connected on crossbeam by rotating shaft respectively, make the first horizontal hook that connects can rotate relative to crossbeam (waving) with the second horizontal hook that connects, and then the titanium that can adapt to differing tilt angles is excellent, avoided the horizontal interference connecting between hook and titanium rod, realized titanium rod better fixing.
Further, described the first horizontal hook that connects comprises the first caliper and the second caliper, described the first caliper and described the second caliper link together by described the first rotating shaft, when described first horizontal when connecting hook and being connected with titanium is excellent, described titanium rod by clamping between described the first caliper and described the second caliper.By the first horizontal company in hook and titanium rod connection procedure, can, by the mode of hard extruding, titanium rod be entrenched between described the first caliper and described the second caliper.
Further, described the second horizontal hook that connects comprises the 3rd caliper and the 4th caliper, described the 3rd caliper and described the 4th caliper link together by described the second rotating shaft, when described second horizontal when connecting hook and being connected with titanium is excellent, described titanium rod by clamping between described the 3rd caliper and described the 4th caliper.By the second horizontal company in hook and titanium rod connection procedure, can, by the mode of hard extruding, titanium rod be entrenched between described the 3rd caliper and described the 4th caliper.
Further, described the first rotating shaft end has external screw thread, and described the second caliper is provided with the female thread matching with the external screw thread of described the first rotating shaft.The clamping of titanium rod after between the first caliper and the second caliper, can be screwed to rotating shaft, by female thread and externally threaded cooperation, make the fastening titanium rod of the first caliper and the second caliper.
Further, described the second rotating shaft end has external screw thread, and described the 4th caliper is provided with the female thread matching with the external screw thread of described the second rotating shaft.
Further, described crossbeam comprises the first tranverse connecting rod and the second tranverse connecting rod, described the first tranverse connecting rod is connected with described the first horizontal hook that connects by described the first rotating shaft, described the second tranverse connecting rod is connected with described the second horizontal hook that connects by described the second rotating shaft, can relative sliding between described the first tranverse connecting rod and described the second tranverse connecting rod, and described crossbeam also comprises the mechanism of described the first tranverse connecting rod of restriction and described the second tranverse connecting rod relative sliding.By the relative sliding of the first tranverse connecting rod and the second tranverse connecting rod, can regulate the length of crossbeam, to be suitable for different titanium interrod spacings, after adjusting crossbeam length, limit the relative sliding of the first tranverse connecting rod and the second tranverse connecting rod, make the first tranverse connecting rod relative fixing with the second tranverse connecting rod.Optionally, the set-up mode of the first tranverse connecting rod and the second tranverse connecting rod, can be with reference to the set-up mode in Chinese patent CN201320320410.5.
Further, described crossbeam is arc.The crossbeam of arc, can avoid the interference of crossbeam and spinal bone.
Further, on described the first tranverse connecting rod, offer slippage slot, described the second tranverse connecting rod is placed in described slippage slot, can in slippage slot, slide by relatively described the first tranverse connecting rod.
Further, described the second tranverse connecting rod both sides have convex shoulder, described slippage slot cross section on described the first tranverse connecting rod is " protruding " shape, described the second tranverse connecting rod joggle is in described the first tranverse connecting rod, described the second tranverse connecting rod is provided with locking screw holes, limits the slip of relatively described the first tranverse connecting rod of described the second tranverse connecting rod by lock-screw.
Further, described first horizontally connects hook and described the second horizontal hook that connects also comprises respectively pre-clamp mechanism, and described pre-clamp mechanism is set to the pre-titanium rod that clamps when the first rotating shaft and the second rotating shaft are not tightened.Described pre-clamp mechanism comprises curved spring washers, and when described the first rotating shaft and described the second rotating shaft are not tightened, under the elastic force effect of curved spring washers, the first caliper and the second caliper and the 3rd caliper and the 4th caliper can clamp titanium rod respectively in advance.Tighten after the first rotating shaft and the second rotating shaft, titanium rod is fastened to horizontal company on hook.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is the overall schematic of a preferred embodiment of the present utility model;
Fig. 2 is the cross-sectional view of a preferred embodiment of the present utility model;
Fig. 3 is the perspective view of a preferred embodiment of the present utility model;
Fig. 4 is the decomposition texture schematic diagram of a preferred embodiment of the present utility model;
Fig. 5 is A-A cross-section structure enlarged diagram in Fig. 1.
The specific embodiment
As shown in the figure, a kind of cross-connecting apparatus that the present embodiment provides, comprise that the horizontal even hook 2 of crossbeam 1, first and the second horizontal horizontal hook 2 that connects of hook 3, the first that connects are connected to one end of crossbeam 1 by the first rotating shaft 4, the second horizontal hook 3 that connects is connected to the other end of crossbeam by the second rotating shaft 5.The first horizontal even hook 2 and the second horizontal hook 3 that connects in the present embodiment are connected on crossbeam 1 by the first rotating shaft 4 and the second rotating shaft 5 respectively, make the first horizontal hook 2 that connects can rotate (waving) relative to crossbeam 1 with the second horizontal hook 3 that connects, and then the titanium that can adapt to differing tilt angles is excellent, avoided the horizontal interference connecting between hook and titanium rod, realized titanium rod better fixing.
The first horizontal hook 2 that connects comprises that the first caliper 21 and the second caliper 22, the first calipers 21 and the second caliper 22 link together by the first rotating shaft 4, when first horizontal when connecting hook 2 and being connected with titanium is excellent, titanium rod by clamping between the first caliper 21 and the second caliper 22.By the first horizontal company in hook 2 and titanium rod connection procedure, can, by the mode of hard extruding, titanium rod be entrenched between the first caliper 21 and the second caliper 22.
The second horizontal hook 3 that connects comprises that the 3rd caliper 31 and the 4th caliper 32, the three calipers 31 and the 4th caliper 32 link together by the second rotating shaft 5, when second horizontal when connecting hook 3 and being connected with titanium is excellent, titanium rod by clamping between the 3rd caliper 31 and the 4th caliper 32.By the second horizontal company in hook 3 and titanium rod connection procedure, can, by the mode of hard extruding, titanium rod be entrenched between the 3rd caliper 31 and the 4th caliper 32.
The first rotating shaft 4 is bolt arrangement, has bolt head and tightening latch, and tightening latch end has external screw thread, and the second caliper 22 is provided with the female thread matching with the external screw thread of the first rotating shaft 4.The clamping of titanium rod after between the first caliper 21 and the second caliper 22, can be screwed to rotating shaft, by female thread and externally threaded cooperation, make the fastening titanium rod of the first caliper 21 and the second caliper 22.
The second rotating shaft 5 is bolt arrangement, has bolt head and tightening latch, and tightening latch end has external screw thread, and the 4th caliper 32 is provided with the female thread matching with the external screw thread of the second rotating shaft 5.The clamping of titanium rod after between the 3rd caliper 31 and the 4th caliper 32, can be screwed to rotating shaft, by female thread and externally threaded cooperation, make the fastening titanium rod of the 3rd caliper 31 and the 4th caliper 32.
Crossbeam 1 comprises the first tranverse connecting rod 11 and the second tranverse connecting rod 12, the end of the first tranverse connecting rod 11 is provided with through hole 111, the end of the second tranverse connecting rod 12 is provided with through hole 121, the first tranverse connecting rod 11 is connected with the first horizontal hook 2 that connects by the first rotating shaft 4, the second tranverse connecting rod 12 is connected with the second horizontal hook 3 that connects by the second rotating shaft 5, can relative sliding between the first tranverse connecting rod 11 and the second tranverse connecting rod 12.On the first tranverse connecting rod 11, offer slippage slot 112, slippage slot 112 cross sections are " protruding " shape, the second tranverse connecting rod 12 both sides have convex shoulder, convex shoulder matches with slippage slot 112 and makes the second tranverse connecting rod 12 joggles in the first tranverse connecting rod 11, and the second tranverse connecting rod 12 can slide at interior relative the first tranverse connecting rod 11 of slippage slot 112.The second tranverse connecting rod 12 is provided with locking screw holes 122, by lock-screw 6, matches with locking screw holes 122, can limit the slip of relative the first tranverse connecting rod 11 of the second tranverse connecting rod 12 by tightening lock-screw 6.In the present embodiment, the first rotating shaft 4 is connected in the first caliper 21 and the second caliper 22 through the through hole 111 of the first tranverse connecting rod 11, and three is linked together.The second rotating shaft 5 is connected in the 3rd caliper 31 and the 4th caliper 32 through the through hole 121 of the second tranverse connecting rod 12, and three is linked together.In the present embodiment, the end of the end of the first tranverse connecting rod 11 and the second tranverse connecting rod 12 is arcwall face, on the first caliper 21 and the 3rd caliper 31, be respectively equipped with the arc groove matching with the arcwall face end of the first tranverse connecting rod 11 and the arcwall face end of the second tranverse connecting rod 12, the end of the end of the first tranverse connecting rod 11 and the second tranverse connecting rod 12 lays respectively in groove, facilitates the first horizontal hook 2 that connects can rotate relative to crossbeam 1 with the second horizontal hook 3 that connects.
The first horizontal hook 2 that connects also comprises the upper cover 23 that is provided with through hole, the second horizontal hook 3 that connects also comprises the upper cover 33 that is provided with through hole, when the end of the first tranverse connecting rod 11 and the end of the second tranverse connecting rod 12 lay respectively in groove, with upper cover 23 and upper cover 33, cover respectively above the end of the first tranverse connecting rod 11 and the end of the second tranverse connecting rod 12.The first horizontal hook 2 that connects also comprises that the horizontal hook 3 that connects of curved spring washers 24, the second also comprises curved spring washers 34.Curved spring washers 24 and curved spring washers 34 are socketed in respectively in the first rotating shaft 4 and the second rotating shaft 5, are positioned at upper cover 23 and upper cover 33 tops.This design, can well clamp titanium rod in advance, is convenient to use and adjust in operation.Before the first rotating shaft 4 and the second rotating shaft 5 are not tightened, under the elastic force effect of curved spring washers, first horizontally connects hook 2 and the second horizontal hook 3 that connects can clamp titanium rod in advance, then tightens the first rotating shaft 4 and 5 titanium rods of the second rotating shaft and is fastened to horizontal company on hook.
By the relative sliding of the first tranverse connecting rod 11 and the second tranverse connecting rod 12, can regulate the length of crossbeam 1, to be suitable for different titanium interrod spacings, after adjusting crossbeam length, the relative sliding of tightening lock-screw 6 restriction the first tranverse connecting rods 11 and the second tranverse connecting rod 12, makes the first tranverse connecting rod 11 relative fixing with the second tranverse connecting rod 12.Crossbeam 1 is arc.The crossbeam 1 of arc, can avoid the interference of crossbeam and spinal bone.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (10)
1. a cross-connecting apparatus, it is characterized in that, described cross-connecting apparatus comprises crossbeam, the first horizontal hook and the second horizontal hook that connects of connecting, and described the first horizontal hook that connects is connected to one end of described crossbeam by the first rotating shaft, and described the second horizontal hook that connects is connected to the other end of crossbeam by the second rotating shaft.
2. cross-connecting apparatus as claimed in claim 1, it is characterized in that, described the first horizontal hook that connects comprises the first caliper and the second caliper, described the first caliper and described the second caliper link together by described the first rotating shaft, when described first horizontal when connecting hook and being connected with titanium is excellent, described titanium rod by clamping between described the first caliper and described the second caliper.
3. cross-connecting apparatus as claimed in claim 2, it is characterized in that, described the second horizontal hook that connects comprises the 3rd caliper and the 4th caliper, described the 3rd caliper and described the 4th caliper link together by described the second rotating shaft, when described second horizontal when connecting hook and being connected with titanium is excellent, described titanium rod by clamping between described the 3rd caliper and described the 4th caliper.
4. cross-connecting apparatus as claimed in claim 2, is characterized in that, described the first rotating shaft end has external screw thread, and described the second caliper is provided with the female thread matching with the external screw thread of described the first rotating shaft.
5. cross-connecting apparatus as claimed in claim 3, is characterized in that, described the second rotating shaft end has external screw thread, and described the 4th caliper is provided with the female thread matching with the external screw thread of described the second rotating shaft.
6. cross-connecting apparatus as claimed in claim 5, it is characterized in that, described crossbeam comprises the first tranverse connecting rod and the second tranverse connecting rod, described the first tranverse connecting rod is connected with described the first horizontal hook that connects by described the first rotating shaft, described the second tranverse connecting rod is connected with described the second horizontal hook that connects by described the second rotating shaft, can relative sliding between described the first tranverse connecting rod and described the second tranverse connecting rod, and described crossbeam also comprises the mechanism of described the first tranverse connecting rod of restriction and described the second tranverse connecting rod relative sliding.
7. cross-connecting apparatus as claimed in claim 6, is characterized in that, on described the first tranverse connecting rod, offers slippage slot, and described the second tranverse connecting rod is placed in described slippage slot, can in slippage slot, slide by relatively described the first tranverse connecting rod.
8. cross-connecting apparatus as claimed in claim 7, it is characterized in that, described the second tranverse connecting rod both sides have convex shoulder, described slippage slot cross section on described the first tranverse connecting rod is " protruding " shape, described the second tranverse connecting rod joggle is in described the first tranverse connecting rod, described the second tranverse connecting rod is provided with locking screw holes, limits the slip of relatively described the first tranverse connecting rod of described the second tranverse connecting rod by lock-screw.
9. cross-connecting apparatus as claimed in claim 1, is characterized in that, described crossbeam is arc.
10. cross-connecting apparatus as claimed in claim 5, is characterized in that, described first horizontally connects hook and described the second horizontal hook that connects also comprises respectively pre-clamp mechanism, and described pre-clamp mechanism is set to the pre-titanium rod that clamps when the first rotating shaft and the second rotating shaft are not tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149797.7U CN203873854U (en) | 2014-03-30 | 2014-03-30 | Horizontal connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149797.7U CN203873854U (en) | 2014-03-30 | 2014-03-30 | Horizontal connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873854U true CN203873854U (en) | 2014-10-15 |
Family
ID=51674414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420149797.7U Expired - Fee Related CN203873854U (en) | 2014-03-30 | 2014-03-30 | Horizontal connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203873854U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106361424A (en) * | 2015-12-29 | 2017-02-01 | 闻泰医疗科技（上海）有限公司 | Pivot tool |
| CN108601610A (en) * | 2015-10-01 | 2018-09-28 | 钜旺生技股份有限公司 | Vertebral column protection device |
| CN113456202A (en) * | 2021-03-23 | 2021-10-01 | 上海长征医院 | Accurate measurement matching device before spinal titanium rod is implanted |
-
2014
- 2014-03-30 CN CN201420149797.7U patent/CN203873854U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601610A (en) * | 2015-10-01 | 2018-09-28 | 钜旺生技股份有限公司 | Vertebral column protection device |
| CN106361424A (en) * | 2015-12-29 | 2017-02-01 | 闻泰医疗科技（上海）有限公司 | Pivot tool |
| CN113456202A (en) * | 2021-03-23 | 2021-10-01 | 上海长征医院 | Accurate measurement matching device before spinal titanium rod is implanted |
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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 |
Granted publication date: 20141015 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |