CN204181703U - Miniature isthmus bursts apart fixing head - Google Patents
Miniature isthmus bursts apart fixing head Download PDFInfo
- Publication number
- CN204181703U CN204181703U CN201420663987.0U CN201420663987U CN204181703U CN 204181703 U CN204181703 U CN 204181703U CN 201420663987 U CN201420663987 U CN 201420663987U CN 204181703 U CN204181703 U CN 204181703U
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- China
- Prior art keywords
- isthmus
- miniature
- nail
- fixing head
- plate body
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a kind of miniature isthmus to burst apart fixing head, relate to pedicle of vertebral arch to burst apart healing technical field of surgical instruments, for the isthmus bone fixedly burst apart, comprise the thin plate can fitted completely with pedicle of vertebral arch bone of plastic type, described plate body is provided with multiple nail of passing for nail, and each described nail is single-row being arranged on described plate body.The miniature isthmus of this utility model bursts apart, and to solve Spondyloschisis operation wound in prior art large for fixing head, the technical problem that complication probability is high, the miniature isthmus of this utility model bursts apart fixing head compact, operation wound face is little, can be fitted in completely on vertebral plate bone, do not invade and hinder canalis spinalis, little to muscle injury, postoperative complication is low.
Description
Technical field
This utility model relates to Spondyloschisis and cures technical field of surgical instruments, and a kind of miniature isthmus bursts apart fixing head specifically.
Background technology
Pedicle isthmus means the narrow between upper and lower articular process, arise from vertebral body upper back, short and thick, with Vertical dimension rear, vertebral body direction projection, its profile is curved, merges with vertebral body, articular process and vertebral arch, has a more shallow incisura to form the lower wall of intervertebral foramina above it, have a darker pedicle of vertebral arch inferior thyroid notch to form the upper wall of intervertebral foramina below pedicle of vertebral arch, bony structures is relatively weak herein.Normal lumbar vertebra has physiology lordosis, and sacral is convex after physiology, and waist, sacral intersection become turning point.Top lumbar vertebra turns forward, and the rumpbone of below then tilts backwards.Therefore, the negative G self-assembling formation component forward of lumbosacral spine, makes the tendency of the oriented front slippage of waist, but is normally subject to the restriction of waist inferior articular process and periarticular capsule, ligament, and pedicle isthmus is in the intersection point of two kinds of strength.Therefore, pedicle isthmus is easily burst apart.
The cure method of Spondyloschisis is mainly nail hook fixation, namely by nail hook fixation that the pedicle screw of upper joint basilar part is connected with vertebral arch hook, utilize pedicle of vertebral arch fixture of bursting apart that the isthmus burst apart is fixed, the position bone heals until burst apart, method is: in superior articular process's basilar part location, implant pedicle screw, vertebral arch hook hook is in the lower edge of same sections vertebral arch, be connected by connecting rod between the two, regulate the screw on connecting rod to realize supercharging, fixation.
This vertebral arch hook has the following disadvantages: vertebral arch coupler body is long-pending large, and operation wound face is large, large to the damage of muscle when performing an operation; Screw is excessive, easily invades canalis spinalis when hammering into, and the head of a nail is oversize, causes wound to muscle, and postoperative complication is many simultaneously.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of miniature isthmus to burst apart fixing head, this fixing head compact, operation wound face is little, and can be fitted in completely on vertebral plate bone, not invade and hinder canalis spinalis, little to muscle injury, postoperative complication is low.
For solving the problems of the technologies described above, the technical solution of the utility model is: miniature isthmus bursts apart fixing head, and comprise plastic type thin plate, described plate body is provided with some nail, and described nail inner surface is fixedly connected with the uniform clamping plate of circumference.
Improve as one, described plate body is made by titanium alloy.
Owing to adopting said structure, the beneficial effects of the utility model are:
Because the miniature isthmus of this utility model bursts apart fixing head, comprise the thin plate can fitted completely with vertebral plate bone of plastic type, plate body is provided with multiple nail of passing for nail.Plate body can be fitted completely with vertebral plate bone, and plate body thickness is little, and volume is little, and on the vertebral plate bone that plate body can be fitted in isthmus by Minimally Invasive Surgery and superior articular process's basilar part, the wound caused health is little.Existing hook screw fixing operation opening at least wants 10cm long, and this utility model operation opening only needs 3 ~ 5cm can complete operation, and can not invade and hinder canalis spinalis, and little to the damage of muscle, postoperative rehabilitation is fast, and complication probability is low.
Because nail is counter sink, after nail hammers into, the upper surface of the head of a nail is concordant with plate body surface, further reduces the damage to patient muscle.
In sum, the miniature isthmus of this utility model bursts apart, and to solve Spondyloschisis operation wound in prior art large for fixing head, the technical problem that complication probability is high, the miniature isthmus of this utility model bursts apart fixing head compact, operation wound face is little, can be fitted in completely on pedicle of vertebral arch bone, not invade and hinder canalis spinalis, little to muscle injury, postoperative complication is low.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is that the miniature isthmus of this utility model bursts apart the structural representation of fixing head;
Fig. 2 is the A-A line sectional view of Fig. 1;
Fig. 3 is that the miniature isthmus of this utility model bursts apart the using state schematic diagram of fixing head;
In figure: 1-isthmus bursts apart fixing head; 11-plate body; 12-nail; 13-arc surface; 2-vertebral plate bone; 3-superior articular process basilar part.
Detailed description of the invention
Below by embodiment and accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of miniature isthmus bursts apart fixing head 1, and for the isthmus fixedly burst apart, comprise plastic type thin plate 11, plate body 11 is provided with multiple nail 12, and each nail 12 is arranged on plate body 11 in single-row.Described plate body 11 is made by titanium alloy.
As shown in Figure 2, nail 12 is counter sink, and its aperture being positioned at plate body 11 upper surface one end is comparatively large, and the aperture being positioned at plate body 11 lower surface one end is less, and the medial wall of less one end, nail 12 aperture is surrounded by the arc surface 13 of multiple uniform projection.Because nail 12 is counter sink, after nail hammers into, the upper surface of the head of a nail flushes with plate body 11 surface, can reduce the damage to patient muscle.
As shown in Figure 1, the width of the plate body 11 between two adjacent nail 12 is less than the diameter of larger one end, aperture of nail 12.This kind of structure is conducive to the plasticity increasing plate body 11, can make its better and surface of bone fit, reduce the damage to patient muscle.
As shown in Figure 3, when doing Spondyloschisis fixing operation, plate body 11 is fitted on vertebral plate bone 2 and superior articular process's basilar part 3, after adjusting position, hole on vertebral plate bone 2 and superior articular process's basilar part 3 according to nail 12, hammered into by nail in nail 12, the part drawing of Spondyloschisis is fixed by plate body 11.The plate body 11 of plastic type can be fitted completely with vertebral plate bone 2, and plate body 11 thickness is little, and volume is little, on the vertebral plate bone 2 that plate body 11 can be fitted in isthmus by Minimally Invasive Surgery and superior articular process's basilar part 3, nail drift bolt hole 12 is fixed in sclerotin, can not invade and hinder canalis spinalis, and the wound that mistake causes health is little.Existing hook screw fixing operation opening at least wants 10cm long, and this utility model operation opening only needs 3 ~ 5cm can complete operation, and can not invade and hinder canalis spinalis, and little to the damage of muscle, postoperative rehabilitation is fast, and complication probability is low.
This utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion made, all drop within protection domain of the present utility model.
Claims (5)
1. miniature isthmus bursts apart fixing head, for the isthmus fixedly burst apart, it is characterized in that, the thin plate of fitting completely with vertebral plate bone comprising plastic type, described plate body is provided with multiple nail of passing for nail, and each described nail is single-row being arranged on described plate body.
2. miniature isthmus according to claim 1 bursts apart fixing head, and it is characterized in that, described nail is counter sink.
3. miniature isthmus according to claim 2 bursts apart fixing head, and it is characterized in that, the sidewall of less one end, described nail aperture is surrounded by the circular arc of multiple uniform projection.
4. the miniature isthmus according to Claims 2 or 3 bursts apart fixing head, and it is characterized in that, the width of the described plate body between two adjacent described nail is less than the diameter of larger one end, aperture of described nail.
5. miniature isthmus according to claim 4 bursts apart fixing head, and it is characterized in that, described plate body is made by titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420663987.0U CN204181703U (en) | 2014-11-07 | 2014-11-07 | Miniature isthmus bursts apart fixing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420663987.0U CN204181703U (en) | 2014-11-07 | 2014-11-07 | Miniature isthmus bursts apart fixing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204181703U true CN204181703U (en) | 2015-03-04 |
Family
ID=52613740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420663987.0U Expired - Fee Related CN204181703U (en) | 2014-11-07 | 2014-11-07 | Miniature isthmus bursts apart fixing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204181703U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725788A (en) * | 2016-12-27 | 2017-05-31 | 中国人民解放军第二军医大学第二附属医院 | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine |
| CN109223153A (en) * | 2018-10-22 | 2019-01-18 | 大泗医疗生物科技有限公司 | A kind of locking fixation steel plate for fracture of scaphoid |
-
2014
- 2014-11-07 CN CN201420663987.0U patent/CN204181703U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725788A (en) * | 2016-12-27 | 2017-05-31 | 中国人民解放军第二军医大学第二附属医院 | A kind of wing plate with curved surface internal fixation system for spondylolysis and spondylolithesis of the lumbar spine |
| CN109223153A (en) * | 2018-10-22 | 2019-01-18 | 大泗医疗生物科技有限公司 | A kind of locking fixation steel plate for fracture of scaphoid |
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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: 20150304 Termination date: 20171107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |