CN202505469U - Lower cervical spine anterior pedicle screw steel plate - Google Patents
Lower cervical spine anterior pedicle screw steel plate Download PDFInfo
- Publication number
- CN202505469U CN202505469U CN2012201181941U CN201220118194U CN202505469U CN 202505469 U CN202505469 U CN 202505469U CN 2012201181941 U CN2012201181941 U CN 2012201181941U CN 201220118194 U CN201220118194 U CN 201220118194U CN 202505469 U CN202505469 U CN 202505469U
- Authority
- CN
- China
- Prior art keywords
- nail hole
- sliding eye
- plate body
- pedicle screw
- lower cervical
- Prior art date
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
Abstract
The utility model discloses a lower cervical spine anterior pedicle screw steel plate. The upper part of a plate body (1) is provided with a main screw hole (2) and an auxiliary screw hole (3), wherein the auxiliary screw hole (3) is positioned beside the main screw hole (2); the lower part of the plate body (1) is provided with two first sliding holes (4); and the two first sliding holes (4) are strip-shaped. The lower cervical spine anterior pedicle screw steel plate is designed specific to a lower cervical spine anterior pedicle screw implantation technology, so that the blank of a professional assorted apparatus in a surgical method is filled. The lower cervical spine anterior pedicle screw steel plate is simple in structure, is reliable for self-locking, is very convenient for clinical operation, and is suitable for treating a patient who needs lower cervical anterior multi-section corpectomy and decompressed reconstruction clinically, in particular for an aged patient who suffers from combined centrum lesions or severe osteoporosis; and steel plates of different lengths and models can be adopted according to different fixed sections of the patient.
Description
Technical field
This utility model belongs to the medical apparatus technical field, specifically, and particularly lower cervical anterior pedicle screw steel plate.
Background technology
For the research of cervical vertebra internal fixation method, confirmed that the biomechanical stability of pedicle screw fixation is the highest.At present, following posterior cervical pedicle screw fixation technology has been accepted extensively and has been applied to clinical by Chinese scholars.
But clinically for the patient who needs the less important full excision decompression of lower cervical anterior multi-segmental vertebral body and rebuild, particularly with vertebral body pathological changes and osteoporotic gerontal patient, with traditional preceding road vertebral body screw steel plate internal fixation; Can't reach the biomechanical strength requirement; Often need add and do way of escape internal fixation operation, increasing its stability, thereby increase patient's wound and operation risk to a great extent; And the probability that causes more complication to take place is arranged, and patient's post-operative recovery is slowed down.
For this reason; The foreign scholar begins preceding road pedicle screw fixation technology is studied, but does not still have professional and complete steel plate screw internal fixation system, all uses common anterior plate fixation, reconstruction plate and common os integumentale screw; Make that operation technique is loaded down with trivial details and do not have locking device; Have potential safety hazard, that causes screw easily becomes flexible, withdraws from steel plate even broken nail.
The utility model content
This utility model technical problem to be solved is to provide a kind of lower cervical anterior pedicle screw steel plate, to simplify clinical manipulation.
The technical scheme of this utility model is following: a kind of lower cervical anterior pedicle screw steel plate; Has plate body (1); Its key is: have main nail hole (2) and auxilliary nail hole (3) on the top of said plate body (1); This master nail hole (2) and auxilliary nail hole (3) are screw, and the center in main nail hole (2) is near the centrage (L) of plate body (1) length direction, and said auxilliary nail hole (3) is positioned at the next door in main nail hole (2); Have two first sliding eyes (4) in the bottom of said plate body (1); These two first sliding eyes (4) are strip; And separation is in the both sides of plate body (1) length direction centrage (L); The length direction of first sliding eye (4) and plate body (1) length direction centrage (L) parallel, with the centrage (L) of the center of leading first sliding eye (4) of following closely hole (2) homonymy near plate body (1) length direction.
Adopt above technical scheme, the main nail hole on plate body top is used for hanging pedicle screw, and the auxilliary nail hole on plate body top is used to insert throat road vertebral body screw; The plate body bottom is used for hanging pedicle screw with first sliding eye of main nail hole homonymy, and another first sliding eye is used to insert throat road vertebral body screw.This utility model adopts unique hanging mounting means, and clinical manipulation is very simple and convenient, not only can guarantee the fastness and the reliability of installing, and can adopt the steel plate of different length and model according to the fixed different segment of patient.Because first sliding eye is a strip, can adjust the position of bottom pedicle screw and throat road vertebral body screw so as required very neatly, to satisfy the needs of different situations.
Said auxilliary nail hole (3) is positioned at the left side in main nail hole (2) and follows closely hole (2) a little less than the master; The hole wall in main nail hole (2) and auxilliary nail hole (3) has the gradient; Head with the corresponding screw in main nail hole or auxilliary nail hole can sink in the corresponding hole like this, fixes to prevent that screw from exposing and helping screw.
Next door in said main nail hole (2) and auxilliary nail hole (3) is equipped with first locating slot, and riveted joint has upper holder block (5) in this first locating slot.Upper holder block can rotate, and after being in place with the corresponding screw in main nail hole or auxilliary nail hole, the rotation briquetting makes the edge of briquetting push down the head of screw, unclamps or withdraws to prevent screw, has further guaranteed the fixing of installing.
The position of the screw of plate body bottom adjustment for ease; And help screw is located; First sliding eye (4) on plate body (1) left side, bottom is lower than first sliding eye (4) on the right; This first sliding eye (4) is made up of three circular holes that are communicated with successively up and down, and the hole wall of said first sliding eye (4) has the gradient.
Next door at three circular holes forming first sliding eye (4) is equipped with second locating slot, and riveted joint has lower lock block (6) in this second locating slot.The lower lock block role is identical with upper holder block, can effectively avoid the screw of plate body bottom to take place to become flexible or withdraw from.
Have second sliding eye (7) at the middle part of said plate body (1); The structure of this second sliding eye (7) is identical with first sliding eye (4); The centrage of second sliding eye (7) length direction overlaps with the centrage (L) of plate body (1) length direction, and the next door of second sliding eye (7) is provided with three middle briquettings (8).Second sliding eye can be inserted vertebral body screw fixation and grafting piece on the one hand, and on the other hand, second sliding eye can be used as bone grafting perspective window, so that observe.Briquetting in the middle of the next door of second sliding eye is provided with works to strengthen the vertebral body screw fixing is installed.
Beneficial effect: this utility model is to insert technology design for the lower cervical anterior pedicle screw specially, has filled up the blank that this art formula does not still have professional and complete apparatus.This utility model is simple in structure; Self-locking is reliable; Clinical manipulation is very convenient; Can adopt the steel plate of different length and model according to the fixed different segment of patient, being applicable to that treatment is clinical needs the lower cervical anterior multi-segmental vertebral body patient that time full excision decompression is rebuild, and particularly merges vertebral body pathological changes or serious osteoporotic gerontal patient.
Description of drawings
Fig. 1 is the structural representation of this utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is described further:
As shown in Figure 1, the plank frame of plate body 1 for having certain radian, the radian of this plate body 1, moulding and patient's lower cervical anterior need fixed sections to adapt.Have main nail hole 2 and auxilliary nail hole 3 on the top of said plate body 1, this master's nail hole 2 and auxilliary nail hole 3 are screw, and main nail hole 2 has certain gradient with the hole wall in auxilliary nail hole 3.The right side that is centered close to plate body 1 length direction centre line L in said main nail hole 2 and near this centre line L.Said auxilliary nail hole 3 is positioned at the left side in main nail hole 2 and a little less than main nail hole 2, main nail hole 2 is used for hanging pedicle screw, and auxilliary nail hole 3 is used to insert throat road vertebral body screw.Right side in main nail hole 2 is provided with first locating slot; This first locating slot is connected with main nail hole 2; And riveted joint has upper holder block 5 in first locating slot, and this upper holder block 5 is preferably " D " shape, and upper holder block 5 can rotate in first locating slot; Be used to oppress the head of pedicle screw, in main nail hole 2, unclamp or withdraw to prevent pedicle screw.Left side in auxilliary nail hole 3 also is provided with first locating slot, and a upper holder block 5 also is housed in this first locating slot in a manner described, is used for oppressing the auxilliary head of following closely the throat road vertebral body screw in hole 3.
As shown in Figure 1; Have two first sliding eyes 4 in the bottom of plate body 1; These two first sliding eyes 4 are strip, and separation is in the both sides of plate body 1 length direction centre line L, with the centre line L of the center of leading first sliding eye 4 of following closely hole 2 homonymies near plate body 1 length direction.One of them first sliding eye 4 is used for hanging pedicle screw, and another first sliding eye 4 is used to insert throat road vertebral body screw, and first sliding eye 4 on the left side is lower than first sliding eye 4 on the right.The length direction of said first sliding eye 4 and plate body 1 length direction centre line L parallel, and this first sliding eye 4 is made up of three circular holes that are communicated with successively up and down, and the hole wall of first sliding eye 4 has the gradient.Right side at three circular holes forming first sliding eye 4 is equipped with second locating slot, and this second locating slot communicates with the first corresponding sliding eye 4, and riveted joint has lower lock block 6 in second locating slot.The structure of lower lock block 6, working method and effect are identical with upper holder block 5, do not do at this and give unnecessary details.
As shown in Figure 1, have second sliding eye 7 at the middle part of plate body 1, the structure of this second sliding eye 7 is identical with first sliding eye 4, and the centrage of second sliding eye 7 length directions overlaps with the centre line L of plate body 1 length direction.Second sliding eye 7 both can have been inserted vertebral body screw fixation and grafting piece, can be used as bone grafting perspective window again.Be provided with three middle briquettings 8 on the right side of said second sliding eye 7, these centre briquetting 8 structures, working method and effect are identical with upper holder block 5, do not do at this and give unnecessary details.
In this utility model, pedicle screw and throat road vertebral body screw are prior art, and its structure is not done at this and given unnecessary details.
Claims (6)
1. lower cervical anterior pedicle screw steel plate; Has plate body (1); It is characterized in that: have main nail hole (2) and auxilliary nail hole (3) on the top of said plate body (1); This master nail hole (2) and auxilliary nail hole (3) are screw, and the center in main nail hole (2) is near the centrage (L) of plate body (1) length direction, and said auxilliary nail hole (3) is positioned at the next door in main nail hole (2); Have two first sliding eyes (4) in the bottom of said plate body (1); These two first sliding eyes (4) are strip; And separation is in the both sides of plate body (1) length direction centrage (L); The length direction of first sliding eye (4) and plate body (1) length direction centrage (L) parallel, with the centrage (L) of the center of leading first sliding eye (4) of following closely hole (2) homonymy near plate body (1) length direction.
2. lower cervical anterior pedicle screw steel plate according to claim 1 is characterized in that: said auxilliary nail hole (3) is positioned at the left side in main nail hole (2) and a little less than main nail hole (2), the hole wall in main nail hole (2) and auxilliary nail hole (3) has the gradient.
3. lower cervical anterior pedicle screw steel plate according to claim 2 is characterized in that: the next door in said main nail hole (2) and auxilliary nail hole (3) is equipped with first locating slot, and riveted joint has upper holder block (5) in this first locating slot.
4. according to claim 1 or 2 or 3 described lower cervical anterior pedicle screw steel plates; It is characterized in that: first sliding eye (4) on plate body (1) left side, bottom is lower than first sliding eye (4) on the right; This first sliding eye (4) is made up of three circular holes that are communicated with successively up and down, and the hole wall of said first sliding eye (4) has the gradient.
5. lower cervical anterior pedicle screw steel plate according to claim 4 is characterized in that: the next door at three circular holes forming first sliding eye (4) is equipped with second locating slot, and riveted joint has lower lock block (6) in this second locating slot.
6. lower cervical anterior pedicle screw steel plate according to claim 5; It is characterized in that: have second sliding eye (7) at the middle part of said plate body (1); The structure of this second sliding eye (7) is identical with first sliding eye (4); The centrage of second sliding eye (7) length direction overlaps with the centrage (L) of plate body (1) length direction, and the next door of second sliding eye (7) is provided with three middle briquettings (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201181941U CN202505469U (en) | 2012-03-27 | 2012-03-27 | Lower cervical spine anterior pedicle screw steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201181941U CN202505469U (en) | 2012-03-27 | 2012-03-27 | Lower cervical spine anterior pedicle screw steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505469U true CN202505469U (en) | 2012-10-31 |
Family
ID=47057984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201181941U Expired - Fee Related CN202505469U (en) | 2012-03-27 | 2012-03-27 | Lower cervical spine anterior pedicle screw steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
| CN108210049A (en) * | 2016-12-09 | 2018-06-29 | 上海市浦东医院 | New type auto locking and pressurizing steel plate |
-
2012
- 2012-03-27 CN CN2012201181941U patent/CN202505469U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
| CN108210049A (en) * | 2016-12-09 | 2018-06-29 | 上海市浦东医院 | New type auto locking and pressurizing steel plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102247207B (en) | Universal omni-posterior-double lateral mass bridging board for cervical vertebra | |
| CN207041573U (en) | Lower cervical anterior sliding extension formula Pedicle screw pating | |
| CN202505469U (en) | Lower cervical spine anterior pedicle screw steel plate | |
| CN105520777A (en) | Bone plate implanted from front inner side of distal femur | |
| CN203001092U (en) | Lower cervical vertebra anterior approach pedicle screw matched fixing and anti-falling device | |
| CN102525631B (en) | Tibial plateau posterolateral bone fracture plate for fracture at attachment of posterior cruciate ligament | |
| CN204121153U (en) | Band flank claw type greater trochanter locking bone fracture plate | |
| CN201675974U (en) | Single-door open-propping device for vertebral plate | |
| CN204708966U (en) | Skull repairs bracing frame | |
| CN203609490U (en) | Prying and pulling device for spine minimally invasive prying and pulling restitution external fixator | |
| CN208573808U (en) | A kind of titanium plate for laminoplasty | |
| CN103239279A (en) | Automatic distraction system for jugular anterior pyramid | |
| CN203388933U (en) | Distal radius palmar locking plate | |
| CN202526239U (en) | Vertebral body opening device used for spinal column posterior surgery | |
| CN207561972U (en) | The preceding road universal lock dissection armor plate of pelvic fracture | |
| CN203693729U (en) | Cervical vertebrae rear path arc single open-door steel plate | |
| CN203244449U (en) | Fixator for ilium groin admission passage acetabulum square area fracture treatment | |
| CN203591319U (en) | Supporting device used for expanding forming of vertebral plate | |
| CN205459223U (en) | Bone tumour cervical vertebra false body | |
| CN204600645U (en) | A kind of anterior cervical vertebrae internal fixation steel plate | |
| CN201692036U (en) | Lower cervical anterior vertebral pedicle bolt internal fixing steel plate | |
| CN201631364U (en) | Special-shaped anatomical locking plate for cotyle posterior column or posterior wall fracture fixation | |
| CN202051805U (en) | Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra | |
| CN209236471U (en) | A kind of bone slot fusion device for cervical vertebral body vancement | |
| CN201847761U (en) | Fixing device in upper thoracic spine anterior titanium plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140327 |