CN204839709U - Way E type internal fixing device before cacroiliac joint - Google Patents
Way E type internal fixing device before cacroiliac joint Download PDFInfo
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- CN204839709U CN204839709U CN201520554198.8U CN201520554198U CN204839709U CN 204839709 U CN204839709 U CN 204839709U CN 201520554198 U CN201520554198 U CN 201520554198U CN 204839709 U CN204839709 U CN 204839709U
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- impeller
- sacroiliac joint
- mainboard
- type inner
- front road
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Abstract
The utility model discloses a way E type internal fixing device before cacroiliac joint belongs to bone surgery apparatus technical field. The utility model discloses a: the mainboard, even there is three acanthus leaf one side of mainboard, and is three the acanthus leaf be fan -shaped distribution, mainboard and acanthus leaf on all the preparation have a plurality of screw holes, still include the bone screw that connects with the screw hole adaptation. The utility model discloses the dislocation of mainly used treatment cacroiliac joint to and the cacroiliac joint fracture dislocation of the special type of part, reliable and stable and fixed mode is simple and convenient.
Description
Technical field
This utility model relates to a kind of sacroiliac joint Anterior fixation device, belongs to orthopedic medical device technical field.
Background technology
Sacroiliac joint is the rear major stable structure of pelvic ring, primarily of being positioned at the ala sacralis of central authorities and being positioned at the facies auricularis ossis ilii formation of both sides, surface of bone contact is large, between have the anterior sacroiliac ligaments in front, interosseous sacroiliac ligament, Di Qia rear, rear ligament connects, and be the main rear structure keeping pelvic stabilization, the load-bearing of human body bilateral hip joint is conducted to spinal column mainly through sacroiliac joint.Sacroiliac joint belongs to amphiarthrosis; subordinate synovial joints in structure; sacroiliac dislocation is often high-energy damage; how fracturing or dislocation with ring before pelvis, sacroiliac joint has decisive action to the stable of whole pelvic ring, and sacroiliac dislocation is not as treated; or in art, reset effect is not good often can remain waist and sacrum pain; local deformity, lower limb hip joint function obstacle, the problems such as walking step state is abnormal.
At present, the modes such as the method that treatment sacroiliac dislocation is conventional comprises anterior lateral cervical approach many pieces of shorts weight and builds Interal fixation, and Posterior approach fixed form comprises sacrum rod, sacroiliac joint posterior approach femoral neck cannulated screw, and bilateral sacroiliac joint bridge plate is fixing.
The major drawbacks of sacroiliac dislocation Posterior approach fixed form is to require that sacroiliac joint resets completely, in navigation or under repeatedly having an X-rayed, fixing requirement of femoral neck cannulated screw could ensure that screw is inserted safe and reliable, otherwise easily there is spinal dura mater and sacral nerves in damage front waist sacral nerves and canalis sacralis, the complication such as rumpbone front injury of iliac blood vessels.And posterior approach has damaged the rock-steady structures such as sacroiliac joint rear muscle ligament complex.
In the modus operandi of sacroiliac dislocation front, operative approach is easy to learn, anterior plate is fixing simple, do not disturb the rock-steady structures such as sacroiliac joint rear muscle ligament, the many employings of traditional front road fixation steel plate two pieces of reconstruction plates are fixed, and this two block plate is mutually 60 ° of angles.The natural fixing sclerotin provided because of ala sacralis limited, and on ala sacralis, every piece of steel plate only has one piece of screw to be fixed on ala sacralis, there will be when ala sacralis local exists fracture or osteoporosis problems such as fixing not easily, fixed biologically mechanical property is unstable.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, this utility model provides a kind of sacroiliac joint front road E type inner fixer, reliable and stable and fixed form is easy, is mainly used in treating sacroiliac dislocation, and the sacroiliac fracture-dislocation of part specific type.Need row sacroiliac joint fusion person for part inflammation of sacroiliac joint disease, this utility model also can be applied.
This utility model is achieved by the following technical solution: a kind of sacroiliac joint front road E type inner fixer, it comprises: mainboard, the side of mainboard is connected with three impeller, impeller described in three is fan-shaped distribution, described mainboard and impeller are all manufactured with some screwed holes, also comprise the bone screw with screwed hole adaptation.
In impeller described in three, middle impeller is fixed on the centre of described mother board side, and all the other two impeller are symmetrical arranged along the centrage of middle impeller.
In impeller described in three, the angle between the centrage of the impeller of both sides and the impeller of centre is 45 degree.
The both sides of each described impeller are all manufactured with the bending shrinkage pool arranged in pairs.
Each described impeller is divided into multistage bending joint by the bending shrinkage pool of described paired setting, and the middle part of every section of bending joint arranges described screwed hole.
Described mainboard is fan-shaped, and the impeller described in three is fixed on fan-shaped large arc side.
Described sacroiliac joint front road E type inner fixer is made up of titanium alloy.
Impeller described in three and bending in obtuse angle between mainboard plane.
Described obtuse angle bending is 135 degree.
Described mainboard and impeller all make the screwed hole described in three, the shape of screwed hole pressing board is uniformly distributed.
The beneficial effects of the utility model are:
This utility model structurally-fixed mode is flexible, can ensure that on ala sacralis, many pieces of screws are fixed in art, and fixing mechanics dependable performance is stablized.
This utility model is E type clover-pattern plate, and upper and lower impeller is fixed on the hardest place of ala of ilium sclerotin, and fixing usefulness is reliable and stable.Mechanical property is best.
What this utility model had a pelvic reconstructive steel plate can free bending characteristic, and be easy in art reinvent, make steel plate more meet concrete sacroiliac joint front anatomic form, Interal fixation is more docile, reduces surrounding soft tissue's card pressure and interference.
Accompanying drawing explanation
According to drawings and embodiments this utility model is further illustrated below.
Fig. 1 is this utility model structural representation;
Fig. 2 is the top view of the band radian bending of middle impeller;
Fig. 3 is impeller partial view;
Fig. 4 is the right view after the impeller bending of Fig. 3;
Fig. 5 is this utility model scheme of installation.
In figure, 1, mainboard, 2, screwed hole, 3, impeller, 4, bending shrinkage pool.
Detailed description of the invention
A kind of sacroiliac joint front road E type inner fixer as shown in Figure 1, Figure 2, Figure 3, Figure 4, it comprises mainboard 1, the side of mainboard 1 is connected with three impeller 3, impeller 3 described in three is in fan-shaped distribution, overall is " E " type in trifolium-shaped, and described mainboard 1 and impeller 3 are all manufactured with some screwed holes 2, shown in Fig. 1, mainboard 1 and the last making of impeller 3 three to five screwed holes 2, the shape of screwed hole 2 pressing board is uniformly distributed.Also comprise the bone screw with screwed hole 2 adaptation.Mainboard is fixed on ala sacralis front, and impeller is fixed on ilium.
E type inner fixer entirety in sacroiliac joint front road adopts plastic metal material, impeller 3 can as required relatively the plane of mainboard 1 carry out bending, to adapt to sacroiliac joint front anatomic form.The art personnel can carry out secondary bending to steel plate as the case may be again, suitably change impeller 3 length, or the radian of change plate is more to meet concrete individual instances, and these amendments all fall in protection domain of the present utility model.
As one optimization, in the impeller 3 described in three, middle impeller 3 is fixed on the centre of described mainboard 1 sidepiece, and all the other two impeller 3 are symmetrical arranged along the centrage of the impeller 3 of centre.
As one optimization, in the impeller 3 described in three, the angle between the centrage of the impeller 3 of both sides and the impeller 3 of centre is 45 degree, i.e. angle between the impeller 3 of both sides is 90 degree.This upper and lower impeller is made to be fixed on the strongest place of sclerotin on ala of ilium.
As one optimization, the both sides of each described impeller 3 are all manufactured with the bending shrinkage pool 4 arranged in pairs, are semicircle orifice or delthyrium.Be convenient to impeller 3 bending.
Each described impeller 3 is divided into multistage bending joint by the bending shrinkage pool 4 of described paired setting, and the middle part of every section of bending joint arranges described screwed hole 2.
Described mainboard 1 is fan-shaped, and the impeller 3 described in three is fixed on fan-shaped large arc side.
Described sacroiliac joint front road E type inner fixer is made up of titanium alloy.
Impeller 3 described in three and bending in obtuse angle between mainboard 1 plane, described obtuse angle bending is preferably about 135 degree, meets sacroiliac joint front anatomical structure most.
As shown in Figure 5, in operation detailed process, this utility model carries out front by sacroiliac joint anterior lateral cervical approach to sacroiliac joint to be fixed, and mainboard is screwed in ala sacralis front, and three pieces of impeller are fixed on ala of ilium front by screw.Its main advantage is overall fixing sacroiliac joint, overcomes the not enough defect of biomechanics on traditional sacroiliac joint many pieces dispersion Interal fixation.Especially on rumpbone, many pieces of screws are fixed, add this utility model mechanical property, fixing usefulness is firm, simultaneously because the angle between impeller 3 and mainboard exists, steel plate is made to meet sacroiliac joint front anatomic form, make impeller 3 be fixed on the most abundant on ala of ilium and hard part simultaneously, further increase the biomechanical property of Interal fixation.
This utility model is mainly used in sacroiliac dislocation anterior approach, is fixed on sacroiliac joint front.Methods of internal fixation is stablized firm, safe and practical, lays the lumbosacral trunk nerve injury that steel plate causes in can effectively avoiding performing the operation, and nerve injury in spinal dura mater and canalis sacralis, the patient avoiding repeatedly fluoroscopy during operation to cause and medical worker's radiation damage.It is convenient that art light plate is fixed, and biomechanical strength is high, and steel plate and screw biomechanics load diatibution are even, steel plate screw resistance to plucking go out and fracture energy strong.
Claims (10)
1. a sacroiliac joint front road E type inner fixer, it is characterized in that: it comprises: mainboard (1), the side of mainboard (1) is connected with three impeller (3), and the impeller (3) described in three, in fan-shaped distribution, described mainboard (1) and impeller (3) is all manufactured with some screwed holes (2); Also comprise the bone screw adaptive with screwed hole (2).
2. sacroiliac joint according to claim 1 front road E type inner fixer, it is characterized in that: in the impeller (3) described in three, middle impeller (3) is fixed on the centre of described mainboard (1) sidepiece, and all the other two impeller (3) are symmetrical arranged along the centrage of middle impeller (3).
3. sacroiliac joint according to claim 1 and 2 front road E type inner fixer, is characterized in that: in the impeller (3) described in three, and the angle between the impeller (3) of both sides and the centrage of middle impeller (3) is 45 degree.
4. sacroiliac joint according to claim 1 front road E type inner fixer, is characterized in that: the both sides of each described impeller (3) are all manufactured with the bending shrinkage pool (4) arranged in pairs.
5. sacroiliac joint according to claim 4 front road E type inner fixer, it is characterized in that: each described impeller (3) is divided into multistage bending joint by the bending shrinkage pool (4) of described paired setting, and the middle part of every section of bending joint arranges described screwed hole (2).
6. sacroiliac joint according to claim 1 front road E type inner fixer, is characterized in that: described mainboard (1) is for fan-shaped, and the impeller (3) described in three is fixed on fan-shaped large arc side.
7. sacroiliac joint according to claim 1 front road E type inner fixer, is characterized in that: described sacroiliac joint front road E type inner fixer is made up of titanium alloy.
8. sacroiliac joint according to claim 1 front road E type inner fixer, is characterized in that: the impeller (3) described in three and bending in obtuse angle between mainboard (1) plane.
9. sacroiliac joint according to claim 8 front road E type inner fixer, is characterized in that: described obtuse angle bending is 135 degree.
10. sacroiliac joint according to claim 1 front road E type inner fixer, is characterized in that: described mainboard (1) and impeller (3) all make the screwed hole (2) described in three, the shape of screwed hole (2) pressing board is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520554198.8U CN204839709U (en) | 2015-07-28 | 2015-07-28 | Way E type internal fixing device before cacroiliac joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520554198.8U CN204839709U (en) | 2015-07-28 | 2015-07-28 | Way E type internal fixing device before cacroiliac joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204839709U true CN204839709U (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520554198.8U Expired - Fee Related CN204839709U (en) | 2015-07-28 | 2015-07-28 | Way E type internal fixing device before cacroiliac joint |
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| CN (1) | CN204839709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223154A (en) * | 2018-10-22 | 2019-01-18 | 大泗医疗生物科技有限公司 | A kind of pelvis universal lock steel plate |
| CN112137765A (en) * | 2020-08-17 | 2020-12-29 | 上海市第六人民医院 | 3D printed universal ilium wing prosthesis |
| CN118845312A (en) * | 2024-09-25 | 2024-10-29 | 吉林大学 | A pelvic prosthesis with bionic axis joint function |
-
2015
- 2015-07-28 CN CN201520554198.8U patent/CN204839709U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109223154A (en) * | 2018-10-22 | 2019-01-18 | 大泗医疗生物科技有限公司 | A kind of pelvis universal lock steel plate |
| CN112137765A (en) * | 2020-08-17 | 2020-12-29 | 上海市第六人民医院 | 3D printed universal ilium wing prosthesis |
| CN118845312A (en) * | 2024-09-25 | 2024-10-29 | 吉林大学 | A pelvic prosthesis with bionic axis joint function |
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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: 20151209 Termination date: 20160728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |