CN205126396U - Ilium bone screw - Google Patents
Ilium bone screw Download PDFInfo
- Publication number
- CN205126396U CN205126396U CN201520840923.8U CN201520840923U CN205126396U CN 205126396 U CN205126396 U CN 205126396U CN 201520840923 U CN201520840923 U CN 201520840923U CN 205126396 U CN205126396 U CN 205126396U
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- screw
- nail tail
- tail apparatus
- button
- nail
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Abstract
The utility model relates to an ilium bone screw belongs to the medical instrument field, is applicable to backbone operations such as the retrogression pathological changes of waist sacrum section, slippage, deformity, tumour. Ilium bone screw, including bulb nail (1), plug screw (2) and screw tail device (3), bulb nail (1) have first hexagonal hole (4), the left end head be spherical, with the cooperation of screw tail device right -hand member, but the folk prescription to or many direction selectivity fix, inside be screw hole (6) of screw tail device (3) left end, middle part division U type groove (7), the tilting mobility of screw tail device (3) is big, is favorable to the connection of hold -down bars.
Description
Technical field
This utility model relates to a kind of iliac screw, belongs to medical instruments field, is applicable to the spinal operations such as adult degenerative lateral bending deformity, lumbosacral segment degeneration, the serious slippage of waist sacrum, tumor.
Background technology
Adult degenerative lateral bending deformity refers to because bone between vertebral body connects the abnormal and upper vertebral body that occurs and the part or all of slippage of the next conical surface.Adult degenerative lateral bending deformity sickness rate of the ordinary people masses more than 60 years old is 30%, part persistence axle lumbago, and the needs of patients of action obstacle is treated surgically.Operation method is orthopedic procedure+Iliac bone graft fusion and internal fixation.
In long segment orthopedic fusion art, because stress after fixing easily concentrates on lumbosacral region, easily cause lumbosacral region internal fixtion to rupture unsuccessfully, therefore internal fixtion usually needs to extend to ilium, and what need to carry out iliac screw at ilium puts nail.Traditional iliac screw is put nail and is positioned at the position of posterior superior iliac spine, and nail tail needs horizontal-associate joint to be connected with the main rod being positioned at sacrum 1 screw tail, realizes the connection that iliac screw and waist sacrum are fixed like this.But it is some posterior superior iliac spine that traditional iliac screw is inserted, and nail tail incisura is high, easily causes postoperative subcutaneous lesion even to follow closely tail and exposes; In addition, because nail tail needs horizontal-associate joint to be connected with the main rod being positioned at sacrum 1 screw tail, mechanics angle, a fixing non-entirety, intensity declines to some extent.Therefore send out out a kind of new iliac screw technique for fixing, have its necessity with the defect overcoming traditional iliac screw.New iliac screw puts the outside lower 1-2mm that nail point is positioned at sacrum 1 hole, ilium is fixed to through sacroiliac joint to outside lower, iliac screw nail tail and sacrum 1 pedicle nail are on a connecting line simultaneously, and avoid the connection conversion of traditional rumpbone and ilium, the entirety realizing ilium and rumpbone is fixed.Novel iliac screw nail tail syndeton is comparatively simple.
Summary of the invention
The purpose of this utility model is: for prior art Problems existing, provides a kind of novel iliac screw.
To achieve these goals, this utility model provides a kind of iliac screw, and comprise button, plug screw and movable nail tail apparatus, described button has hexagonal hole, left end head is spherical, can coordinate with nail tail apparatus right-hand member (bottom), can one direction or multi-direction selectivity fix, regular screw thread in rivet nut, rivet nut device right-hand member afterbody is taper, play the guiding role, button can design plurality of specifications, selects for during operation.Be hexagonal hole in the middle of described plug screw, outer bands screw thread, for being screwed into nail tail apparatus.Described nail tail apparatus left end inside is screwed hole, and U-type groove is opened in middle part, and have the aperture of two symmetries outside nail tail apparatus, lower end is spherical, is connected with button, and the plane at the U-type groove place of nail tail apparatus has circular hole, is convenient to apparatus clamping nail tail apparatus.
By preoperative imaging examination, the diagnosis such as row x-ray, CT examination patient condition, determines the surgery location of patient and implements operation, first choosing entry point, prepare nail road, carry out tapping, insert screw with special equipment, upper rod is locked.This utility model novel in structural design, practicality, safety, operation technique simply, can maintain enough mechanical strengths, be suitable for spinal surgery clinical application in human body.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Fig. 2 is the structure chart of this utility model button.
Fig. 3 is the structure chart of this utility model plug screw.
Fig. 4 is the structure chart of this utility model nail tail apparatus.
In figure
1 button, 2 plug screws, 3 nail tail apparatus, 4 first hexagonal holes, 5 second hexagonal holes, 6 screwed holes, 7U type groove, 8 apertures, 9 sphericals, 10 circular holes.
Detailed description of the invention
For making the purpose of this utility model, technical scheme clearly, below in conjunction with accompanying drawing, this utility model is described in further detail.
Shown in Fig. 4, a kind of iliac screw of this utility model, comprise button 1, plug screw 2 and nail tail apparatus 3, described button 1 has the first hexagonal hole 4, left end head is spherical, coordinate with nail tail apparatus right-hand member, can one direction or multi-direction selectivity fix, regular screw thread in rivet nut, rivet nut right-hand member afterbody is taper, play the guiding role, button 1 can design plurality of specifications, selects for during operation.Be the second hexagonal hole 5 in the middle of described plug screw 2, outer bands screw thread, for being screwed into nail tail apparatus 3.Described nail tail apparatus left end inside is screwed hole 6, U-type groove 7 is opened in middle part, nail tail apparatus 3 tiltable mobility is large, there is the aperture 8 of two symmetries in outside, lower end is spherical 9, with button 1 with the use of, can one direction or multi-direction selectivity fix, the plane at U-type groove 7 place of adapter 3 there is circular hole 10, is convenient to apparatus clip nail tail apparatus.
Claims (2)
1. iliac screw, it is characterized in that: comprise button (1), plug screw (2) and nail tail apparatus (3), described button (1) has the first hexagonal hole (4), left end head is spherical, coordinates, regular screw thread in rivet nut with nail tail apparatus right-hand member, rivet nut right-hand member afterbody is taper, play the guiding role, button (1) can design plurality of specifications, selects for during operation; Be the second hexagonal hole (5) in the middle of described plug screw (2), outer bands screw thread, for being screwed into nail tail apparatus (3); Described inside, nail tail apparatus (3) upper end is screwed hole (6), U-type groove (7) is opened in middle part, there is the aperture (8) of two symmetries in outside, and the plane at U-type groove (7) place of nail tail apparatus (3) has circular hole (10), is convenient to apparatus clamping nail tail apparatus (3).
2. iliac screw according to claim 1, is characterized in that: described nail tail apparatus (3), and right-hand member is spherical (9), with button (1) with the use of, can one direction or multi-direction selectivity fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840923.8U CN205126396U (en) | 2015-10-28 | 2015-10-28 | Ilium bone screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840923.8U CN205126396U (en) | 2015-10-28 | 2015-10-28 | Ilium bone screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205126396U true CN205126396U (en) | 2016-04-06 |
Family
ID=55612224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520840923.8U Active CN205126396U (en) | 2015-10-28 | 2015-10-28 | Ilium bone screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205126396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
| CN109505582A (en) * | 2018-11-30 | 2019-03-22 | 四川圣诺油气工程技术服务有限公司 | A kind of idler wheel flexible nipple |
-
2015
- 2015-10-28 CN CN201520840923.8U patent/CN205126396U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105943143A (en) * | 2016-06-30 | 2016-09-21 | 山东威高骨科材料股份有限公司 | Reduction and internal fixation device for injury of lumbar vertebra, sacrum and ilium pelvis |
| CN109505582A (en) * | 2018-11-30 | 2019-03-22 | 四川圣诺油气工程技术服务有限公司 | A kind of idler wheel flexible nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |