CN203647453U - Transverse connecting device of spine screw-rod system - Google Patents
Transverse connecting device of spine screw-rod system Download PDFInfo
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- CN203647453U CN203647453U CN201320806598.4U CN201320806598U CN203647453U CN 203647453 U CN203647453 U CN 203647453U CN 201320806598 U CN201320806598 U CN 201320806598U CN 203647453 U CN203647453 U CN 203647453U
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- screw
- hook
- lock
- curved bar
- handle curved
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- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 description 1
- 235000004224 Typha angustifolia Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
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Abstract
The utility model relates to a transverse connecting device of a spine screw-rod system. The transverse connecting device comprises a first hook, a second hook, a locking screw and a locking nut, the first hook and the second hook are connected with a first long-handle curved bar and a second long-handle curved bar respectively, matched sawtooth-shaped teeth are arranged on the lower portion of the first long-handle curved bar and one segment of the upper surface of the tail of the second long-handle curved bar, a step-shaped through groove matched with a screw rod of the locking screw is formed in the upper surface of the first long-handle curved rod in the longitudinal direction, a step hole which penetrates through the locking screw and limits the rotation of the locking screw is formed in the middle of the second sawtooth-shaped teeth, the first hook and the second hook are in contact cooperation through the first sawtooth-shaped teeth and the second sawtooth-shaped teeth and are fixedly connected through the locking screw and the locking nut. The transverse connecting device has the advantages that the hooks are connected through the sawtooth-shaped teeth, movement is not prone to happening, the distance between two screw rods are kept constant always, meanwhile, an included angle is not prone to being generated between the hooks, and the stability of the screw-rod system is facilitated.
Description
Technical field
This utility model relates to a kind of spine nail bar system Transverse and connects device.
Background technology
At present, along with the development of internal fixation of spine technology, adopt spine nail rod fixed system to reset, correct and obtain applying more and more widely pathologic regressions such as thoracic vertebra, lumbar vertebra bending, deformities.Its superiority be rigidity stable, keep the line of force, recover physiological camber, increase fusion rate.But due to human spine's special physiological structure and frequent activity, this just requires spine nail bar system to have good stability, require Transverse between two nail rods to connect device reliable and stable simultaneously, be difficult for play occurs, otherwise may occur vertebral body unstability, fix unsuccessfully.Now have Transverse in technology to connect apparatus structure and generally comprise two hooks, described hook respectively carries segment length's handle curved bar, between two long handle curved bars, fixes the distance between the two hook hook hearts by the locking mode of pressing friction, i.e. distances between two nail rods.Because the mode of friction lock has certain limitation, if locking device is loosening to some extent, will cause vertebral body unstability, affect surgical effect.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, reliable and stable spine nail bar system Transverse and connects device, to overcome the shortcoming and defect of prior art.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of spine nail bar system Transverse connects device, comprise hook one, hook two, lock-screw and locking nut, described hook one and hook two are connected with respectively long handle curved bar one and long handle curved bar two, long handle curved bar one below is evenly distributed with serrated teeth one, long handle curved bar one upper surface is longitudinally provided with the notch cuttype groove matching with the screw rod of described lock-screw, described long handle curved bar two afterbody upper surfaces are provided with one section of serrated teeth two matching with serrated teeth one, in the middle of serrated teeth two, be provided with the stepped hole for lock screw turns by described lock-screw and restriction, the projection that described lock-screw head is set for the eccentric, described stepped hole comprises the through hole one matching with the screw rod of described lock-screw and the eccentric through-hole two matching with described lock-screw nose shape, described hook one and hook two contact with serrated teeth two by described serrated teeth one joins lock-screw described in merga pass and is fixedly connected with locking nut.
Further, described locking nut has one for leading and the boss of the centre of location.
Further, the projection of described lock-screw head is keyway shape.
Further, between described lock-screw head and stepped hole, be interference fit.
The beneficial effects of the utility model are: between hook, be connected by serrated teeth, be difficult for occurring play, guarantee that the distance between two nail rods is constant all the time, also guaranteed to be difficult for producing angle between hook, be conducive to the stable of nail-stick system simultaneously.
Accompanying drawing explanation
With reference to the accompanying drawings this utility model is described in further detail below.
Fig. 1 is the structural representation that spine nail bar system Transverse connects device described in this utility model embodiment;
Fig. 2 is the structural representation that spine nail bar system Transverse connects device hook one described in this utility model embodiment;
Fig. 3 is the structural representation that spine nail bar system Transverse connects device hook two described in this utility model embodiment;
Fig. 4 is the front view that spine nail bar system Transverse connects device lock-screw described in this utility model embodiment;
Fig. 5 is the left view that spine nail bar system Transverse connects device lock-screw described in this utility model embodiment;
Fig. 6 is the front view that spine nail bar system Transverse connects device locking nut described in this utility model embodiment;
Fig. 7 is the left view that spine nail bar system Transverse connects device locking nut described in this utility model embodiment.
In figure:
1, hook one; 2, hook two; 3, lock-screw; 4, locking nut; 5, long handle curved bar one; 6, long handle curved bar two; 7, serrated teeth one; 8, notch cuttype groove; 9, serrated teeth two; 10, stepped hole; 11, projection; 12, through hole one; 13, eccentric through-hole two; 14, boss.
The specific embodiment
As shown in Fig. 1-7, spine nail bar system Transverse described in this utility model embodiment connects device, comprise hook 1, link up with 22, lock-screw 3 and locking nut 4, it is characterized in that: described hook 1 and hook 22 are connected with respectively long handle curved bar 1 and long handle curved bar 26, long handle curved bar one 5 belows are evenly distributed with serrated teeth 1, long handle curved bar one 5 upper surfaces are longitudinally provided with the notch cuttype groove 8 matching with the screw rod of described lock-screw 3, described long handle curved bar 26 afterbody upper surfaces are provided with one section of serrated teeth 29 matching with serrated teeth 1, in the middle of serrated teeth 29, be provided with the stepped hole 10 for rotating by described lock-screw 3 and restriction lock-screw 3, the projection 11 that described lock-screw 3 heads are set for the eccentric, described stepped hole 10 comprises the through hole 1 matching with the screw rod of described lock-screw 3 and the eccentric through-hole 2 13 matching with described lock-screw 3 nose shapes, described hook 1 and hook 22 contact with serrated teeth 29 by described serrated teeth 1 joins lock-screw 3 described in merga pass and is fixedly connected with locking nut 4, described locking nut 4 has one for leading and the boss 14 of the centre of location, the projection 11 of described lock-screw 3 heads is keyway shape, between described lock-screw 3 heads and stepped hole 10, it is interference fit.
When concrete use, lock-screw 3 is pressed in hook 22 corresponding stepped holes 10, link up with the screw rod of one 1 notch cuttype groove 8 through lock-screw 3, make the serrated teeth between hook be in contact with one another cooperation, locking nut 4 is spun on lock-screw 3, guarantees that nut does not drop, two hook hook heart distances can regulate.In operation process, two hooks hook the hold-down bars on both sides separately, after the distance of adjusting between two hold-down bars, with corresponding spanner locking nut 4.
Link up with 1 and hook be connected by serrated teeth between 22, be difficult for generation play, and to make the distance between two nail rods be the value that can calculate; Screw thread between lock-screw 3 and locking nut 4 has self-lock ability, can guarantee that the distance between two nail rods is relatively stable.
This utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. the Transverse of a spine nail bar system connects device, comprise hook one (1), hook two (2), lock-screw (3) and locking nut (4), it is characterized in that: described hook one (1) and hook two (2) are connected with respectively long handle curved bar one (5) and long handle curved bar two (6), long handle curved bar one (5) below is evenly distributed with serrated teeth one (7), long handle curved bar one (5) upper surface is longitudinally provided with the notch cuttype groove (8) matching with the screw rod of described lock-screw (3), described long handle curved bar two (6) afterbody upper surfaces are provided with one section of serrated teeth two (9) matching with serrated teeth one (7), in the middle of serrated teeth two (9), be provided with stepped hole (10), the projection (11) that described lock-screw (3) head is set for the eccentric, described stepped hole (10) comprises the through hole one (12) matching with the screw rod of described lock-screw (3) and the eccentric through-hole two (13) matching with described lock-screw (3) nose shape, described hook one (1) and hook two (2) contact with serrated teeth two (9) by described serrated teeth one (7) joins lock-screw (3) described in merga pass and is fixedly connected with locking nut (4).
2. spine nail bar system Transverse according to claim 1 connects device, it is characterized in that: described locking nut (4) has boss (14).
3. spine nail bar system Transverse according to claim 2 connects device, it is characterized in that: described projection (11) is keyway shape.
4. spine nail bar system Transverse according to claim 3 connects device, it is characterized in that: between described lock-screw (3) head and stepped hole (10), be interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806598.4U CN203647453U (en) | 2013-12-09 | 2013-12-09 | Transverse connecting device of spine screw-rod system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320806598.4U CN203647453U (en) | 2013-12-09 | 2013-12-09 | Transverse connecting device of spine screw-rod system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203647453U true CN203647453U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320806598.4U Expired - Lifetime CN203647453U (en) | 2013-12-09 | 2013-12-09 | Transverse connecting device of spine screw-rod system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203647453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496526A (en) * | 2016-01-12 | 2016-04-20 | 浙江保尔曼生物科技有限公司 | One-key locking fixator for orthopedic external fixation support |
| CN106176018A (en) * | 2016-07-15 | 2016-12-07 | 杭州市富阳区第人民医院 | The small-sized connecting plate of the fixing self-locking of fracture of mandible |
| CN109259876A (en) * | 2018-11-03 | 2019-01-25 | 上海迈诺仕医疗器械有限公司 | A kind of built-in thoracocyllosis orthotics |
-
2013
- 2013-12-09 CN CN201320806598.4U patent/CN203647453U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496526A (en) * | 2016-01-12 | 2016-04-20 | 浙江保尔曼生物科技有限公司 | One-key locking fixator for orthopedic external fixation support |
| CN105496526B (en) * | 2016-01-12 | 2018-07-13 | 浙江保尔曼生物科技有限公司 | Orthopaedic external fixator a-key-lock formula fixator |
| CN106176018A (en) * | 2016-07-15 | 2016-12-07 | 杭州市富阳区第人民医院 | The small-sized connecting plate of the fixing self-locking of fracture of mandible |
| CN109259876A (en) * | 2018-11-03 | 2019-01-25 | 上海迈诺仕医疗器械有限公司 | A kind of built-in thoracocyllosis orthotics |
| CN109259876B (en) * | 2018-11-03 | 2024-01-30 | 江苏泰应生物科技有限公司 | Built-in chest deformity correcting instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 314003, No. 1-2, building 8, Shanghai Jiaotong University (Jiaxing) Science Park, No. 321, Chong Chong Road, Xiuzhou District, Zhejiang, Jiaxing Patentee after: ZHEJIANG DECANS MEDICAL INSTRUMENT CO.,LTD. Address before: 314031, building 8, Shanghai Jiao Tong Science Park, Jiaxing Road, Xiuzhou Road, Zhejiang, China Patentee before: JIAXING DEKANG MEDICAL DEVICES Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Transverse connecting device of spine screw-rod system Effective date of registration: 20161101 Granted publication date: 20140618 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: ZHEJIANG DECANS MEDICAL INSTRUMENT CO.,LTD. Registration number: 2016330000084 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211011 Granted publication date: 20140618 Pledgee: Agricultural Bank of China Limited by Share Ltd. Jiaxing science and Technology Branch Pledgor: ZHEJIANG DECANS MEDICAL INSTRUMENT Co.,Ltd. Registration number: 2016330000084 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |