CN205107867U - Coaptation board that has effect of initiatively pressurizeing to fracture end - Google Patents
Coaptation board that has effect of initiatively pressurizeing to fracture end Download PDFInfo
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- CN205107867U CN205107867U CN201520890025.3U CN201520890025U CN205107867U CN 205107867 U CN205107867 U CN 205107867U CN 201520890025 U CN201520890025 U CN 201520890025U CN 205107867 U CN205107867 U CN 205107867U
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- sliding tray
- screw
- fracture
- plate face
- plate
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Abstract
The utility model provides a coaptation board that has effect of initiatively pressurizeing to fracture end, belongs to bone surgery apparatus technical field for promote the healing at fracture position. The utility model discloses a coaptation board face adopts the optimalarc design, and the stress that can effectual dispersed coaptation board receives prevents the fracture of coaptation board stress concentration nature, adopt the sliding tray to replace the screw hole, more be favorable to realizing the wicresoft, can not appear screw biasing problem when making the percutaneous implant the screw, make the screw put into the sliding tray more easily, simultaneously, under the effect of gravity and myotasis, the sliding tray design makes the screw vertically not have obvious resistance, can make the fracture broken ends of fractured bone fully pressurize, more is favorable to the union. In the rehabilitation process of postoperative, the locking screw can carry out the fine motion and slide along the sliding tray of coaptation board, and body weight can make the fracture both ends be close to each other, has realized the pressor effect of initiative, has promoted the healing at fracture position. The utility model discloses simple structure, convenient to use have the effect of good promotion union.
Description
Technical field
This utility model relates to the blade plate that a kind of acropathy long bone fractures uses, and belongs to bone surgery set technical field.
Background technology
Extremity fracture is modal classification of fracture in Orthopedic Clinical work.Explore extremity fracture optimal fixed form is focus in orthopaedics work and difficult point always.The situation of several blade plates of current use is as follows:
The blade plate being conventionally used to fixing limbs fracture mainly relies on the frictional force between blade plate and surface of bone to remain stable, need large area to peel off periosteum in art, heavy damage fracture Peripheral blood fortune, because not pressurizeing to fracture end in art, postoperatively easily there is nonunion, now substantially superseded.
Along with the universal of " AO " serial orthopedic fixation device tool and popularization, it uses limitation also day by day to manifest.
Dynamic Compression Plate (DCP), although can realize the passive pressure effect of fracture site in art, is still fixed against the frictional force produced with surface of bone and remains stable, heavy damage fracture surrounding biologic environment.During union of fracture, once sclerotin infiltration rate is greater than skeletonization healing rate around fracture, passive pressure effect can be lost, and is unfavorable for union of fracture.
" the angle stability " and " inner fixed support " of locking bone fracture plate uniqueness acts on and can provide stable fixed effect when protecting periosteum not to be destroyed; but due to the pressurization to fracture site can not be realized in art; postoperatively also affect union of fracture, be mainly used in extremity metaphysis section fracture or syntripsis.
Interlocking intramedullary nail and locked pressurized bone plate (LCP) are though a large amount of for clinical, and therapeutic effect is remarkable, and postoperative still do not possess fracture site initiatively pressurization, still likely occurs the nonunion caused because of fracture end bone absorption.
In sum, how realizing the postoperative active pressure effect to fracture end is the key issue reducing postoperative fracture disunion incidence rate, and several blade plates used at present all can not carry out active pressurization to fracture site effectively, be therefore necessary that a kind of new blade plate of development solves the problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of blade plate fracture end being had to initiatively pressure effect, this blade plate has initiatively pressure effect to fracture end after surgery, skeletonization healing rate around fracture is made to be greater than bone absorption speed, reduce postoperative fracture disunion incidence rate, accelerate the healing of fracture.
The technical scheme solved the problems of the technologies described above is:
A kind of blade plate fracture end being had to initiatively pressure effect, its plate face is rectangle, there is inside rectangular sliding tray at the two ends in rectangular slab face, sliding tray is along the length direction in plate face, sliding tray is positioned on the centrage of plate face length direction, there is step-like breach the upper end of sliding tray dual-side, sliding tray cross section is for falling convex shape, the diameter of the width of sliding tray and the screw rod of lock screw matches, the diameter of the width of step-like breach and the nut of lock screw matches, the upper surface in plate face is circular shape at length direction, the height at length direction two ends, plate face is lower than the height in the middle of plate face, the cross section in plate face is circular shape, the height of width both sides, plate face is lower than the height in the middle of plate face.
Above-mentioned blade plate fracture end being had to initiatively pressure effect, lock screw in described sliding tray is soket head cap screw, the nut of lock screw is embedded in the step-like breach on sliding tray top, and the nut height of lock screw is less than the degree of depth of sliding tray upper step breach.
Above-mentioned blade plate fracture end being had to initiatively pressure effect, the screw that on the plate face of described sliding tray rear end and plate body junction, oriented plate face center position tilts, the angle of inclination in screw and plate face is 30-45 degree, and the screw thread of screw and placement and the handle front end of taking out blade plate matches.
The beneficial effects of the utility model are:
Blade plate plate face of the present utility model adopts arc line shaped design, and around fracture end, blade plate thickens, thinning gradually to two ends, can stress effectively suffered by dispersion bone plate, prevents blade plate stress centrality from rupturing.This utility model adopts sliding tray to replace screw hole, is more conducive to realizing Wicresoft, makes to there will not be screw bias problem during percutaneous pedicle screw, make screw be more prone to insert sliding tray; Meanwhile, under the effect of gravity and myotasis, sliding tray design makes screw longitudinally not having obvious resistance, fracture site can be made fully to pressurize, meet union of fracture principle, be more conducive to union of fracture.The slightly flat blade plate configuration design in two ends of the present utility model can make blade plate insert periosteum outer tunnel to be more prone to.In this utility model rehabilitation course after surgery, lock screw can carry out fine motion slippage along the sliding tray of blade plate, and human body weight can make fracture two ends close to each other, achieves the effect of initiatively pressurization, facilitates the healing of fracture site.This utility model structure is simple, easy to use, and the problem of initiatively pressurizeing to fracture site after solving plate fixation, has the effect of good promotion union of fracture, be worthy of popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the side view of the amplification of Fig. 1.
In figure, labelling is as follows: blade plate 1, sliding tray 2, step-like breach 3, lock screw 4, screw.
Detailed description of the invention
Show in figure, the plate face of blade plate 1 of the present utility model is rectangle, and the upper surface in the plate face of blade plate 1 is circular shape at length direction, and the height at the length direction two ends, plate face of blade plate 1 is lower than the height in the middle of blade plate 1.Meanwhile, the upper surface in the plate face of blade plate 1 is circular shape at width, and the height of the width both sides, plate face of blade plate 1 is lower than the height in the middle of blade plate 1.Blade plate 1 plate face adopts arc line shaped design, can stress effectively suffered by dispersion bone plate 1, prevents blade plate 1 stress centrality from rupturing.Meanwhile, blade plate 1 configuration design can make blade plate 1 insert periosteum outer tunnel to be more prone to.
Show in figure, this utility model instead of the locking Screw hole structure of existing blade plate with sliding tray 2.Inside sliding tray 2 is had at the two ends, rectangular slab face of blade plate 1, sliding tray 2 is along the length direction in plate face, sliding tray 2 is positioned on the centrage of plate face length direction, the diameter of the width of sliding tray 2 and the screw rod of lock screw 4 matches, and lock screw 4 is connected with cortical bone through sliding tray 2.Sliding tray 2 replaces screw hole, is more conducive to realizing Wicresoft, makes to there will not be screw bias problem during percutaneous pedicle screw, makes screw be more prone to insert sliding tray 2.
Show in figure, there is step-like breach 3 upper end of sliding tray 2 dual-side, and the diameter of the width of step-like breach 3 and the nut of lock screw 4 matches, and the degree of depth of step-like breach 3 is greater than the height of the nut of lock screw 4.
Show in figure, lock screw 4 is soket head cap screw, and the nut of lock screw 4 is embedded in the step-like breach 3 on sliding tray 2 top, and the nut height of lock screw 4 is less than the degree of depth of sliding tray 2 upper step breach 3.
The nut thickness of the lock screw 4 of an embodiment of the present utility model is 1/3 of sliding tray 2 groove depth.
Show in figure, the screw 5 that on the plate face of sliding tray 2 rear end and plate body junction, oriented plate face center position tilts, screw 5 is 30-45 degree with the angle of inclination in plate face, and screw 5 matches with the screw thread of the handle front end of placing and taking out blade plate.In Minimally Invasive Surgery, screwed in screw 5 by the threaded portion of the front end of handle, blade plate is inserted or is taken out by hand-held handle.
The screw 5 of an embodiment of the present utility model is 30 degree with the angle of inclination in plate face, the diameter 5mm of screw 5, dark 3mm.
When reality uses, the lower surface of the nut of lock screw 4 and the plane of step-like breach 3 are that limited compression is fastenedly connected, the lower surface of the nut of lock screw 4 can along the slight slippage of plane of step-like breach 3, sliding tray 2 pairs of lock screw 4 play a part cross spacing, and lock screw 4 and the bone be connected can movements slightly on the length direction of blade plate 1, under human body weight effect, realize initiatively pressurization, promote the healing of fracture site.
The compression degree of lock screw and blade plate 1 is grasped by experienced doctor, make blade plate 1 can not compress cortical bone can not move, keep certain pressure again, make blade plate 1 play the effect of fixing fracture site, small movement can also be had at the length direction of blade plate 1 simultaneously.
Claims (3)
1. one kind has the blade plate of initiatively pressure effect to fracture end, it is characterized in that: its plate face is rectangle, there is inside sliding tray (2) at the two ends in rectangular slab face, sliding tray (2) is along the length direction in plate face, sliding tray (2) is positioned on the centrage of plate face length direction, there is step-like breach (3) upper end of sliding tray (2) dual-side, sliding tray (2) cross section is for falling convex shape, the diameter of the width of sliding tray (2) and the screw rod of lock screw (4) matches, the diameter of the width of step-like breach (3) and the nut of lock screw (4) matches, the upper surface in plate face is circular shape at length direction, the height at length direction two ends, plate face is lower than the height in the middle of plate face, the cross section in plate face is circular shape, the height of width both sides, plate face is lower than the height in the middle of plate face.
2. blade plate fracture end being had to initiatively pressure effect according to claim 1, it is characterized in that: the lock screw (4) in described sliding tray (2) is soket head cap screw, the nut of lock screw (4) is embedded in the step-like breach (3) on sliding tray (2) top, and the nut height of lock screw (4) is less than the degree of depth of sliding tray (2) upper step breach (3).
3. blade plate fracture end being had to initiatively pressure effect according to claim 2, it is characterized in that: the screw (5) that on the plate face of described sliding tray (2) rear end and plate body junction, oriented plate face center position tilts, screw (5) is 30-45 degree with the angle of inclination in plate face, and screw (5) matches with the screw thread of the handle front end of placing and taking out blade plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890025.3U CN205107867U (en) | 2015-11-10 | 2015-11-10 | Coaptation board that has effect of initiatively pressurizeing to fracture end |
| PCT/CN2016/105306 WO2017080482A1 (en) | 2015-11-10 | 2016-11-10 | Internal fixation plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520890025.3U CN205107867U (en) | 2015-11-10 | 2015-11-10 | Coaptation board that has effect of initiatively pressurizeing to fracture end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205107867U true CN205107867U (en) | 2016-03-30 |
Family
ID=55563524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520890025.3U Withdrawn - After Issue CN205107867U (en) | 2015-11-10 | 2015-11-10 | Coaptation board that has effect of initiatively pressurizeing to fracture end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205107867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213015A (en) * | 2015-11-10 | 2016-01-06 | 张英泽 | A kind of blade plate fracture end being had to initiatively pressure effect |
| WO2017080482A1 (en) * | 2015-11-10 | 2017-05-18 | 张英泽 | Internal fixation plate |
-
2015
- 2015-11-10 CN CN201520890025.3U patent/CN205107867U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105213015A (en) * | 2015-11-10 | 2016-01-06 | 张英泽 | A kind of blade plate fracture end being had to initiatively pressure effect |
| WO2017080482A1 (en) * | 2015-11-10 | 2017-05-18 | 张英泽 | Internal fixation plate |
| CN105213015B (en) * | 2015-11-10 | 2018-05-15 | 张英泽 | A kind of bone plate for having active pressure effect to fracture end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20180515 |
|
| AV01 | Patent right actively abandoned |