CN204016450U - A kind of calcaneus reset dilator - Google Patents
A kind of calcaneus reset dilator Download PDFInfo
- Publication number
- CN204016450U CN204016450U CN201420397268.9U CN201420397268U CN204016450U CN 204016450 U CN204016450 U CN 204016450U CN 201420397268 U CN201420397268 U CN 201420397268U CN 204016450 U CN204016450 U CN 204016450U
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- CN
- China
- Prior art keywords
- mobile jib
- strut
- calcaneus
- sleeve pipe
- reset
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Abstract
The utility model discloses a kind of calcaneus reset dilator, comprise mobile jib, the fixing strut be fixedly connected with mobile jib and to be slidably connected with mobile jib and can along the slip strut of mobile jib length direction movement, slip strut and fixing strut are provided with to match and strut screw for what strut fracture of calcaneus end, slip strut are also provided with for making slip strut be fixed on lockable mechanism on mobile jib.Calcaneus reset dilator of the present utility model, by arranging fixing strut and slip strut on mobile jib, slip strut can slide to regulate the distance between fixing strut along mobile jib, thus can reach the object strutting fracture of calcaneus end, simple, convenient; And by lockable mechanism, slip strut locking being fixed on mobile jib, fixing strut and slip strut are all fixed, and the position after calcaneus is resetted is easy to keep, and can improve the reset effect of fracture of calcaneus.
Description
Technical field
This utility model belongs to technical field of medical instruments, and specifically, this utility model relates to a kind of calcaneus reset dilator.
Background technology
Fracture of calcaneus is one of classification of fracture common in wounded patient, and serious fracture of calcaneus because of the malunion of traumatic arthritis and calcaneus, can cause intractable pain and the dysfunction of foot, have a strong impact on patient's walking and quality of life.
The calcaneus positor of current use is mainly two groups and extends loop bar, often group is two, two ends are screw rod, middle is sleeve pipe composition, but it easily stops the operation of Plate internal fixiation, and it is comparatively required great effort when strutting, complicated operation, so limited to the reset effect of fracture of calcaneus, especially to the non-constant of the reset effect of posterior joints talocalcanean, even also there is impact to apart from middle joint, all fixed by Coase pin on traditional reset basis, cause the wound of astragalus articular surface, easily cause the fusion of talocalcaneal articulation.And current dilator is fixing with Kirschner wire, be spongy bone because calcaneus is bulk irregular bone and sclerotin, Kirschner wire hold when it struts is not strong.
Because current calcaneus positor exists many defects, so be badly in need of clinically wanting the auxiliary reset of related equipment and the apparatus reducing relevant Iatrogenic injury.
Utility model content
This utility model provides a kind of calcaneus reset dilator, and object improves the reset effect of fracture of calcaneus.
To achieve these goals, the technical scheme that this utility model is taked is: a kind of calcaneus reset dilator, comprise mobile jib, the fixing strut be fixedly connected with mobile jib and to be slidably connected with mobile jib and can along the slip strut of mobile jib length direction movement, slip strut and fixing strut are provided with to match and strut screw for what strut fracture of calcaneus end, slip strut are also provided with for making slip strut be fixed on lockable mechanism on mobile jib.
Described fixing strut is connected with the end of described mobile jib.
Described fixing strut comprises the head rod be fixedly connected with described mobile jib and the first sleeve pipe be connected with head rod, described in strut screw and insert in the first sleeve pipe.
Described first sleeve pipe and described head rod are rotationally connected, and the rotation centerline of the first sleeve pipe is parallel with the length direction of described mobile jib.
Described head rod and described mobile jib perpendicular.
Described slip strut comprises the second connecting rod be set on described mobile jib and the second sleeve pipe be connected with the second connecting rod, and the second connecting rod parallels with described head rod, described in strut screw and insert in the second sleeve pipe.
Described second sleeve pipe and described second connecting rod are rotationally connected, and the rotation centerline of the second sleeve pipe is parallel with the length direction of described mobile jib.
Described slip strut also comprises and being set on described mobile jib and the slide be connected with described second connecting rod, and described retaining mechanism is located on slide.
Described mobile jib is provided with a toothrow tooth, and described lockable mechanism is comprised and to be rotationally connected by bearing pin and described slide and the latch that can embed on mobile jib between adjacent two teeth and the torsion spring be located at for making latch reset on bearing pin.
Described slide is provided with and the teeth meshed gears on described mobile jib, and gear is connected with the handle for driving it to rotate.
Calcaneus reset dilator of the present utility model, by arranging fixing strut and slip strut on mobile jib, slip strut can slide to regulate the distance between fixing strut along mobile jib, thus can reach the object strutting fracture of calcaneus end, simple, convenient; And by lockable mechanism, slip strut locking being fixed on mobile jib, fixing strut and slip strut are all fixed, and the position after calcaneus is resetted is easy to keep, and can improve the reset effect of fracture of calcaneus.
Accompanying drawing explanation
This description comprises the following drawings, shown content respectively:
Fig. 1 is the structural representation of this utility model calcaneus reset dilator;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is B-B sectional view in Fig. 2;
Fig. 5 is the structural representation of handle;
Fig. 6 is C-C sectional view in Fig. 5;
Fig. 7 is the sectional view of connecting axle;
Fig. 8 is the sectional view of gear and rotating shaft molectron;
Fig. 9 is the sectional view of sleeve pipe;
Figure 10 is the structural representation strutting screw;
Figure 11 is the sectional view of slide and the second connecting rod molectron;
Be labeled as in figure:
1, screw is strutted; 2, mobile jib; 21, teeth;
3, fixing strut; 31, head rod; 32, the first sleeve pipe; 33, the first bolt; 34, the first locking nut;
4, slip strut; 41, the second connecting rod; 42, the second sleeve pipe; 43, the second bolt; 44, the second locking nut; 45, slide; 46, installing hole; 47, jack; 48, bearing;
5, lockable mechanism; 51, latch; 52, torsion spring; 53, the first bearing pin; 54, dead bolt;
6, hands handle; 61, holding tank; 62, lockhole;
7, connecting axle; 71, pilot hole; 72, diameter holes; 73, large hole, footpath;
8, gear; 9, rotating shaft; 10, stop screw; 11, the second bearing pin; 12, locking spring; 13, locking ball.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, be described in further detail detailed description of the invention of the present utility model, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technical scheme, and contribute to its enforcement.
As shown in Figure 1 to 11, a kind of calcaneus reset of this utility model dilator, comprise mobile jib 2, the fixing strut 3 be fixedly connected with mobile jib 2 and to be slidably connected with mobile jib 2 and can along the slip strut 4 of mobile jib 2 length direction movement, slip strut 4 and fixing strut 3 are respectively provided with one and strut screw 1, two strut screw 1 and match for strutting fracture of calcaneus end, slip strut 4 are also provided with for making slip strut 4 be fixed on lockable mechanism 5 on mobile jib 2.After the work of strutting is completed to fracture of calcaneus end, slip strut 4 is fixed on mobile jib 2 by lockable mechanism 5, fixing strut 3 and slip strut 4 are all fixed on mobile jib 2, thus make calcaneus maintenance position after the reset, are conducive to the reset effect improving fracture of calcaneus.
Specifically, mobile jib 2 is long straight-bar, and its transverse section is square, and its upper surface is provided with a toothrow tooth 21, and teeth 21 are unanimously disposed to the other end along its length from one end of mobile jib 2, forms rack structure.These teeth 21 are for matching with lockable mechanism 5, are fixed on mobile jib 2 by slip strut 4 locking.
Fixing strut 3 is the ends being arranged on mobile jib 2, and fixing strut 3 comprises the head rod 31 be fixedly connected with mobile jib 2 and the first sleeve pipe 32 be connected with head rod 31, struts screw 1 and inserts in the first sleeve pipe 32.
As preferably, as shown in Figure 2, head rod 31 is long straight-bar, and itself and mobile jib 2 are perpendicular, and extend towards the side of mobile jib 2.One end of head rod 31 is fixedly connected with mobile jib 2, and one end of the other end and the first sleeve pipe 32 is rotationally connected, and the rotation centerline of the first sleeve pipe 32 is parallel with the length direction of mobile jib 2.As shown in Fig. 1 and Fig. 9, one end of first sleeve pipe 32 is provided with an axis hole for being connected with head rod 31, the other end struts screw 1 insert fixing for allowing, the inwardly recessed circular shrinkage hole formed is provided with at this end end face, the linkage section strutting screw 1 inserts in this shrinkage pool, and is fixedly connected with the first sleeve pipe 32.
First sleeve pipe 32 is spatially perpendicular with mobile jib 2, thus the screw 1 that struts be connected on the first sleeve pipe 32 is also spatially perpendicular with mobile jib 2.And the first sleeve pipe 32 is arranged to the structure that is rotationally connected with head rod 31, by regulating the angle between the first sleeve pipe 32 and head rod 31, reach the object strutting screw 1 position on adjustment first sleeve pipe 32, when performing the operation, the position strutting screw 1 and mobile jib 2 can be regulated as required, avoid hindering operation technique.
As shown in Figure 2, the first sleeve pipe 32 is rotationally connected with head rod 31 by the first bolt 33, and the first sleeve pipe 32 and head rod 31, through the axis hole that the first sleeve pipe 32 and head rod 31 are arranged, link together by the first bolt 33.In order to the first sleeve pipe 32 can be fixed, first bolt 33 is also provided with first locking nut 34, first locking nut 34 and the first bolt 33 are for being threaded, first locking nut 34 is positioned at the side of head rod 31, by tightening the first locking nut 34, can the first sleeve pipe 32 be fixed on head rod 31, when needs rotation the first sleeve pipe 32, unscrew the first locking nut 34, simply easy to operate.
As depicted in figs. 1 and 2, slip strut 4 comprises the second connecting rod 41 be set on mobile jib 2 and parallels with head rod 31 the second sleeve pipe 42, second connecting rod 41 be connected with the second connecting rod 41, and another struts screw 1 and inserts in the second sleeve pipe 42.
As preferably, the second connecting rod 41 is long straight-bar, and itself and mobile jib 2 are perpendicular, and extend with head rod 31 the same side towards mobile jib 2, the length of the second connecting rod 41 and the length of head rod 31 roughly equal.One end of second connecting rod 41 is provided with the square opening passed for mobile jib 2, one end of the other end and the second sleeve pipe 42 is rotationally connected, the rotation centerline of the second sleeve pipe 42 is parallel with the length direction of mobile jib 2, and the rotation centerline of the rotation centerline of the second sleeve pipe 42 and the first sleeve pipe 32 is on same straight line.As shown in Fig. 1 and Fig. 9, the structure of the second sleeve pipe 42 is identical with the structure of the first sleeve pipe 32, one end of second sleeve pipe 42 is provided with an axis hole for being connected with the second connecting rod 41, another two ends strut screw 1 insert fixing for allowing, the inwardly recessed circular shrinkage hole formed is provided with at this end end face, the linkage section strutting screw 1 inserts in this shrinkage pool, and is fixedly connected with the second sleeve pipe 42.
Second sleeve pipe 42 is spatially perpendicular with mobile jib 2, thus the screw 1 that struts be connected on the second sleeve pipe 42 is also spatially perpendicular with mobile jib 2.And the second sleeve pipe 42 is arranged to the structure that is rotationally connected with the second connecting rod 41, by regulating the angle between the second sleeve pipe 42 and the second connecting rod 41, reach the object strutting screw 1 position on adjustment second sleeve pipe 42, when performing the operation, the position strutting screw 1 and mobile jib 2 can be regulated as required, avoid hindering operation technique.
As shown in Figure 2, the second sleeve pipe 42 is rotationally connected by the second bolt 43 and the second connecting rod 41, and the second sleeve pipe 42 and the second connecting rod 41, through the axis hole that the second sleeve pipe 42 and the second connecting rod 41 are arranged, link together by the second bolt 43.In order to the second sleeve pipe 42 can be fixed, second bolt 43 is also provided with second locking nut 44, second locking nut 44 and the second bolt 43 are for being threaded, second locking nut 44 is positioned at the side of the second connecting rod 41, by tightening the second locking nut 44, can the second sleeve pipe 42 be fixed on head rod 31, when needs rotation the second sleeve pipe 42, unscrew the second locking nut 44, simply easy to operate.
Shown in Fig. 1 and Fig. 2 during state, the first sleeve pipe 32 is perpendicular with head rod 31, the second sleeve pipe 42 and the second connecting rod 41 perpendicular.
As shown in Figure 1, slip strut 4 also comprises and being set on mobile jib 2 and the slide 45 be connected with the second connecting rod 41, one end of slide 45 is fixedly connected with the side of the second connecting rod 41, the inside of slide 45 is provided with the square opening allowing mobile jib 2 pass, and the square opening in slide 45 is communicated with the square opening in the second connecting rod 41.Slide 45 also extends certain distance for the one end not arranging fixing strut 3 on mobile jib 2, and its length is greater than the thickness of the second connecting rod 41, and retaining mechanism is mounted on slide 45.
As preferably, as shown in figures 1 and 3, lockable mechanism 5 is comprised and being rotationally connected and the latch 51 that can embed on mobile jib 2 between adjacent two teeth 21 and the torsion spring 52 for making latch 51 reset be located on the first bearing pin 53 by the first bearing pin 53 and slide 45.The upper surface paralleled with the surface that mobile jib 2 is provided with teeth 21 on slide 45 is provided with bearing 48, first bearing pin 53 is arranged on this bearing 48, the axis of the first bearing pin 53 and the length direction of mobile jib 2 perpendicular, latch 51 is rotating to be arranged on the first bearing pin 53, thus latch 51 is rotating on slide 45.Torsion spring 52 is enclosed within the first bearing pin 53, and torsion spring 52 is also positioned at the below of latch 51, and one end of torsion spring 52 props up latch 51, and the other end props up the upper surface of slide 45.Position adjacent with the second connecting rod 41 on the upper surface of slide 45 is provided with a jack 47, and this jack 47 is for running through the circular hole of slide 45 sidewall, and the below of jack 47 is the teeth 21 on mobile jib 2.One end of latch 51 is provided with the dead bolt 54 in a teeth groove that can embed between adjacent two teeth 21 through jack 47, the other end is that staff presses the end that latch 51 is rotated, first bearing pin 53 is between the two ends of latch 51, torsion spring 52 on first bearing pin 53 is for promoting latch 51 rotation after staff releasing pressing, dead bolt 54 is embedded in the teeth groove on mobile jib 2 surface, and can keep the state of embedding.
As shown in Figure 3, slide 45 is also provided with and teeth 21 meshed gears 8 on mobile jib 2, and gear 8 is connected with the handle 6 for driving it to rotate.The axis of this gear 8 and the axis being parallel of the first bearing pin 53, and parallel with head rod 31 and the second connecting rod 41.
As preferably, gear 8 is rotating on slide 45, as shown in Figure 8, the side of gear 8 is provided with and is fixedly connected with and coaxial rotating shaft 9 with it, the center of gear 8 is provided with a screwed hole, this screwed hole is formed from the opposite side side of gear 8 towards gear 8 internal recess, and this screwed hole inserts for stop screw 10 to be connected with gear 8.As shown in figure 11, slide 45 is provided with one for holding the installing hole 46 of the circle of gear 8, the axis of this installing hole 46 parallels with the axis of the first bearing pin 53, and both axis are positioned at the same side of mobile jib 2, this installing hole 46 is through to relative opposite side from the side of slide 45, and installing hole 46 is communicated with the square opening of slide 45 inside, thus the gear 8 in insertion installing hole 46 can be engaged with the teeth 21 on mobile jib 2 surface.Rotating shaft 9 is the sides being positioned at slide 45, stop screw 10 inserts in the screwed hole in gear 8 at slide 45 opposite side and is fastenedly connected with gear 8, the diameter of stop screw 10 head nut is greater than the diameter of installing hole 46 on slide 45, the head nut of stop screw 10 is positioned at outside slide 45, plays position-limiting action.
As shown in Figure 4, rotating shaft 9 is connected with handle 6 by a connecting axle 7, and rotating shaft 9, connecting axle 7 and handle 6 are linked into an integrated entity by second bearing pin 11, correspondingly on rotating shaft 9, connecting axle 7 and handle 6, is provided with the axis hole allowing the second bearing pin 11 pass.This connecting axle 7 is columniform component, and as shown in Figure 7, from being provided with hole, a large footpath 73, diameter holes 72 and pilot hole 71 vertically successively in connecting axle 7, the diameter of hole, large footpath 73, diameter holes 72 and pilot hole 71 reduces successively.Rotating shaft 9 is inserted in hole, large footpath 73, a locking ball 13 is provided with in pilot hole 71, a locking spring 12 is provided with in diameter holes 72, one end of locking spring 12 can be inserted in pilot hole 71 and be contacted with locking ball 13, the other end is against on the end face of rotating shaft 9, and locking spring 12 moves towards lockhole 62 place in handle 6 for promoting locking ball 13, finally makes locking ball 13 part embed in lockhole 62, another part embeds in pilot hole 71, is fixed on connecting axle 7 by handle 6 locking.
As shown in Figure 5 and Figure 6, handle 6 is flat component, which is provided with one for holding the holding tank 61 of connecting axle 7, this holding tank 61 is through to opposite side from handle 6 side, and connecting axle 7 to insert in holding tank 61 and realizes rotating connection by the second bearing pin 11 with handle 6.Lockhole 62 is circular holes that the internal face at holding tank 61 place is formed towards handle 6 internal recess, coaxial with the pilot hole 71 in connecting axle 7.
When pulling handle 6, locking ball 13 being embedded after in the lockhole 62 of handle 6, handle 6 locking can be made to fix.After latch 51 unlocks, and handle 6 is in lockup state, by turning handle 6, handle 6 is by connecting axle 7 and rotation driven gear 8 synchronous axial system, because the teeth 21 of gear 8 with mobile jib 2 surface engage, the gear 8 of rotation can drive slide 45 and slip strut 4 to move on mobile jib 2, to regulate the position of slip strut 4, this regulative mode is simple, convenient, and more laborsaving.
As preferably, as shown in Figure 2, connecting axle 7 is hemispherical away from the end of slide 45, and this end is inserted in the holding tank 61 of handle 6, have the arch section matched with the ball-shaped end of connecting axle 7 in corresponding holding tank 61, lockhole 62 is positioned at the center of this arch section.Spherical structure is arranged in the end of connecting axle 7, can facilitate the rotation of handle 6, with the position of regulating handle 6, avoids hindering operation technique.
The calcaneus reset dilator of said structure is adopted in calcaneus reattachment surgery, fracture of calcaneus position is by effectively reducing compression and the upset of fracture after strutting, also reduce the intrinsic pressure of fracture site simultaneously, also than being easier to by other assistive devices or manual reduction after fracture of calcaneus end is softened, comparatively conventional open resets more easily, accurately, the position after reset is easy to keep.
Below by reference to the accompanying drawings this utility model is exemplarily described.Obviously, this utility model specific implementation is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model.
Claims (10)
1. a calcaneus reset dilator, it is characterized in that: comprise mobile jib, the fixing strut be fixedly connected with mobile jib and to be slidably connected with mobile jib and can along the slip strut of mobile jib length direction movement, slip strut and fixing strut are provided with to match and strut screw for what strut fracture of calcaneus end, slip strut are also provided with for making slip strut be fixed on lockable mechanism on mobile jib.
2. calcaneus reset dilator according to claim 1, is characterized in that: described fixing strut is connected with the end of described mobile jib.
3. calcaneus reset dilator according to claim 1 and 2, is characterized in that: described fixing strut comprises the head rod be fixedly connected with described mobile jib and the first sleeve pipe be connected with head rod, described in strut screw and insert in the first sleeve pipe.
4. calcaneus reset dilator according to claim 3, is characterized in that: described first sleeve pipe and described head rod are rotationally connected, and the rotation centerline of the first sleeve pipe is parallel with the length direction of described mobile jib.
5. calcaneus reset dilator according to claim 4, is characterized in that: described head rod and described mobile jib perpendicular.
6. calcaneus reset dilator according to claim 5, it is characterized in that: described slip strut comprises the second connecting rod be set on described mobile jib and the second sleeve pipe be connected with the second connecting rod, second connecting rod parallels with described head rod, described in strut screw and insert in the second sleeve pipe.
7. calcaneus reset dilator according to claim 6, is characterized in that: described second sleeve pipe and described second connecting rod are rotationally connected, and the rotation centerline of the second sleeve pipe is parallel with the length direction of described mobile jib.
8. calcaneus reset dilator according to claim 7, is characterized in that: described slip strut also comprises and being set on described mobile jib and the slide be connected with described second connecting rod, and described lockable mechanism is located on slide.
9. calcaneus reset dilator according to claim 8, it is characterized in that: described mobile jib is provided with a toothrow tooth, described lockable mechanism is comprised and to be rotationally connected by bearing pin and described slide and the latch that can embed on mobile jib between adjacent two teeth and the torsion spring be located at for making latch reset on bearing pin.
10. calcaneus reset dilator according to claim 9, is characterized in that: described slide is provided with and the teeth meshed gears on described mobile jib, and gear is connected with the handle for driving it to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397268.9U CN204016450U (en) | 2014-07-17 | 2014-07-17 | A kind of calcaneus reset dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397268.9U CN204016450U (en) | 2014-07-17 | 2014-07-17 | A kind of calcaneus reset dilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204016450U true CN204016450U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397268.9U Expired - Fee Related CN204016450U (en) | 2014-07-17 | 2014-07-17 | A kind of calcaneus reset dilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204016450U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955146A (en) * | 2017-05-09 | 2017-07-18 | 上海市奉贤区中心医院 | The miniature fixator of fracture of calcaneus |
| CN107582112A (en) * | 2017-09-08 | 2018-01-16 | 山东威高骨科材料股份有限公司 | Device for spreading between a kind of centrum |
| CN109077788A (en) * | 2018-10-22 | 2018-12-25 | 宁波市第六医院 | A kind of minimally invasive reset screw of calcaneum |
-
2014
- 2014-07-17 CN CN201420397268.9U patent/CN204016450U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106955146A (en) * | 2017-05-09 | 2017-07-18 | 上海市奉贤区中心医院 | The miniature fixator of fracture of calcaneus |
| CN106955146B (en) * | 2017-05-09 | 2023-05-26 | 上海市奉贤区中心医院 | Miniature fixer for calcaneus fracture |
| CN107582112A (en) * | 2017-09-08 | 2018-01-16 | 山东威高骨科材料股份有限公司 | Device for spreading between a kind of centrum |
| CN109077788A (en) * | 2018-10-22 | 2018-12-25 | 宁波市第六医院 | A kind of minimally invasive reset screw of calcaneum |
| CN109077788B (en) * | 2018-10-22 | 2024-04-26 | 宁波市第六医院 | Calcaneus minimally invasive reset screw |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170717 |