CN208769964U - A kind of posterior wall of acetabulum bone plate - Google Patents
A kind of posterior wall of acetabulum bone plate Download PDFInfo
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- CN208769964U CN208769964U CN201820435326.0U CN201820435326U CN208769964U CN 208769964 U CN208769964 U CN 208769964U CN 201820435326 U CN201820435326 U CN 201820435326U CN 208769964 U CN208769964 U CN 208769964U
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Abstract
The utility model discloses a kind of posterior wall of acetabulum bones plate, the side of the bone plate main body is provided with several edge teeths, fixed jaw is formed in the end far from the bone plate main body of edge teeth simultaneously, the fixed jaw described in this way can drive it to be applied with grasping force to bone face while screw fixation bone fracture plate, make what bone plate was more easier to be fixed on acetabular bone outer wall, avoids the puzzlement of selection screw；Further, the edge teeth is formed with card slot, in this way, because the shape of acetabular bone outer wall, is stuck in a part of acetabular bone outer wall in card slot, makes the more fastening of plate fixation in this way；Further, the arc-shaped transition in trough rim junction of the card slot, reducing acute angle stimulates the transition of bone facial bone film, reduces the secondary pain of patient, improves the healing rate of patient.
Description
Technical field
The utility model relates to bone plate the field of medical instrument technology, and in particular to a kind of posterior wall of acetabulum bone plate.
Background technique
Hipbone is made of ilium, ischium and pubis three parts, and lateral surface has a big and deep nest, becomes acetabular bone, hip
Mortar and femoral head form hip joint.Acetabular bone is the important component of hip joint, and internal includes facies lunata and acetabular fossa.Due to
Hip joint weight bearing is big, and mobility is big, therefore is easy to damage, and fracture of acetabulum can by pubis when pelvic fracture, ischium or
Fracture of ilium and involve acetabular bone, can also be caused by hip joint central dislocation.After the fracture line of Acetabular posterior wall fracture involves acetabular bone
Edge or mortar top weight bearing area will affect the stability of hip joint when sclerite is more than the 40% of posterior wall of acetabulum, cause femoral head de-
Position.
Currently, because be not exclusively used in posterior wall of acetabulum comminuted fracture still in clinical application encloses joint elasticity bone plate,
Therefore other position miniplates are mostly applied to posterior wall of acetabulum comminuted fracture after the processing such as pruned, bending, moulding, it is this
Mode disadvantage is obvious, needs to carry out moulding repeatedly according to bone shape in art, causes operating time long, bleeding is more, and operation is concurrent
Disease is more, and surgical staff also determines bone plate to the attaching degree of bone to the moulding degree of steel plate, or even decides operation
Success or failure.
Chinese patent literature CN104224293A disclose it is a kind of for fixing the combined type fixator of Acetabular posterior wall fracture,
In the fixator use process, how to select the screw of appropriate length most important, still, due to the fixator shape with
And the special construction on posterior wall of acetabulum mortar top, too long or too short screw is all less suitable, after screw length is suitable, fixator
Fixed effect cannot achieve, and cause sclerite fixed, increases so as to cause operating difficulty, is postoperative fixed unstable
It is fixed.To solve the above-mentioned problems, Chinese patent literature CN206424136U discloses a kind of posterior wall of acetabulum and encloses joint elasticity synthetism
Plate and combined type internal fixation device are consolidated bone plate by the way that anchoring thorn is arranged on bone plate and increases combined type internal fixation device
It is scheduled on hipbone rear wall, but this structure greatly increases the secondary pain of patient, and needs to increase this knot of fixator
Structure increases additional burden on original injured hipbone rear wall on hipbone rear wall.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of posterior wall of acetabulum bone plate comprising: it is provided with number
The bone plate main body of a fixation hole has for being attached to the positive of bone surface and backwards to the positive back side, connects described
The side of plate body is provided with several edge teeths, is formed with fixation in the end far from the bone plate main body of edge teeth
Pawl.
Further, the edge teeth is formed with card slot.
Further, the arc-shaped transition in trough rim junction of the card slot.
Further, the angle [alpha] between the surface of the edge teeth and the back side of the bone plate main body is 15-20 degree.
Further, the back side of the bone plate main body is formed with two inclined surface, and inclination angle beta is 10-15 degree.
Further, the front of the bone plate main body is formed with arcwall face.
Further, the two sides of the bone plate main body are in concave arc transition connection design.
Further, the bone plate main body further includes the first extension and the second extension, first extension and
When two extensions are fixed, the bone that is fixed on except posterior wall of acetabulum.
Further, it is formed on the side of the bone plate main body between two adjacent edge uncinus and hole is auxiliarily fixed, it is described
Hole is auxiliarily fixed and is formed with opening.
The above-mentioned technical proposal of the utility model has the advantage that compared with prior art
(1) the posterior wall of acetabulum bone plate of the utility model is provided with several edge teeths in the side of the bone plate main body,
It is formed with fixed jaw in the end far from the bone plate main body of edge teeth simultaneously, the fixed jaw described in this way can be in screw
It drives it to be applied with grasping force to bone face while fixation bone fracture plate, makes what bone plate was more easier to be fixed on acetabular bone outer wall,
Avoid the puzzlement of selection screw；Further, the edge teeth is formed with card slot, in this way, because the shape of acetabular bone outer wall, makes hip
A part of mortar outer wall is stuck in card slot, makes the more fastening of plate fixation in this way；Further, the trough rim connection of the card slot
Locate arc-shaped transition, reducing acute angle stimulates the transition of bone facial bone film, reduces the secondary pain of patient, improves being cured for patient
Close speed.
(2) the posterior wall of acetabulum bone plate of the utility model, the back side on the surface of the edge teeth and the bone plate main body
Between angle [alpha] be 15-20 degree；The back side of the bone plate main body is formed with two inclined surface, and such gradient design can
Stimulation of the synthetism plate surface to musculature is reduced to greatest extent；The front of the bone plate main body is formed with arcwall face, arc
Shape face can be further reduced bone plate and stimulate the transition of bone facial bone film.
(3) two sides of the posterior wall of acetabulum bone plate of the utility model, the bone plate main body are designed in concave arc transition connection,
In this way, the substantially wavy setting in the two sides of the bone plate main body, not only facilitates moulding, but also protect nail hole, increases
The firmness of bone plate.
(4) the posterior wall of acetabulum bone plate of the utility model, the bone plate main body further include that the first extension and second prolong
When long section, first extension and the second extension are fixed, the bone being fixed on except posterior wall of acetabulum, this avoid synthetisms
Plate is only fixed on hipbone rear wall, because of the relatively thin needs of hipbone rear wall additional the phenomenon that increasing fixator and is difficult to select showing for screw
As.
Detailed description of the invention
It, below will be to specific embodiment party in order to illustrate more clearly of the technical solution in specific embodiment of the present invention
Attached drawing needed in formula does simple introduction, it should be apparent that, the accompanying drawings in the following description is the one of the utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the main view of bone plate described in the utility model；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A-A direction view in Fig. 2；
Fig. 4 is the B-B direction view in Fig. 2；
Fig. 5 is the perspective view of bone plate described in the utility model；
Fig. 6 is the structure chart that bone plate described in the utility model is attached on hipbone rear wall；
Fig. 7 is a kind of structure chart of bone plate described in the utility model；
Fig. 8 is C-C direction view in Fig. 7；
Appended drawing reference indicates in figure are as follows: 1- bone plate main body；2- edge teeth；3- fixed jaw；4- card slot；The inclined surface 5-；6-
Arcwall face；7- concave arc；The first extension of 8-；The second extension of 9-；Hole is auxiliarily fixed in 10-.
Specific embodiment
Clear, complete description is carried out to the content of the utility model with reference to the accompanying drawing, it is clear that described embodiment
It is a part of the embodiment of the utility model, instead of all the embodiments.Occupy the embodiments of the present invention, this field
Those of ordinary skill's other embodiments obtained without making creative work belong to the utility model protection
Range.
Embodiment 1
As Figure 1-Figure 5, the present embodiment provides a kind of posterior wall of acetabulum bones plate comprising: it is provided with several fixation holes
Bone plate main body 1, have for being attached to the positive of bone surface and backwards to the positive back side, in the bone plate main body
1 side is provided with several edge teeths 2, and the quantity of the edge teeth 2 is not done specific limitation, preferably 5, is uniformly spaced in
The side of bone plate main body 1, meanwhile, it is formed with fixed jaw 3 in the end far from the bone plate main body 1 of edge teeth 2, it is described
The shape and structure of fixed jaw 3 are not particularly limited, and can be protrusion, can be crozier, are can also be certainly on the side
The lower end surface grooving of uncinus 2, so that the edge of the edge teeth 2 forms fixed jaw 3, in the present embodiment, 2 shape of edge teeth
At card slot 3, the cross section structure of the card slot 3 is not particularly limited, it is preferred that its section is trapezoidal, and the trough rim of the card slot 3
Junction is arc-shaped transition.
Further, the global shape of the edge teeth 2 is not particularly limited, it is preferred that its global shape is trapezoidal, and remote
End from the bone plate main body 1 is microcephaly；Between the surface of the edge teeth 2 and the back side of the bone plate main body 1
Angle [alpha] be 15-20 degree, preferably 18 degree；1 back side of bone plate main body is formed with two inclined surface 5, inclination angle beta 10-15
Degree, preferably 13 degree, further, two inclined surface 5 along the fixation hole line of centres be symmetrical arranged, and with the remaining back side formation with
The vertical section of the fixation hole line of centres is trapezoidal；The front of the bone plate main body 1 is formed with arc face 6, which can
To be entire front, it is also possible to partial elevational, in the present embodiment, the length of the arcwall face 6 is entire bone plate main body 1
Length, and, as shown in figure 4, the line between the camber line two-end-point that the arcwall face 6 is formed is less than the width of bone plate main body 1；Institute
The two sides of bone plate main body 1 are stated in 7 transition of concave arc connection design, such design is more easier moulding, meanwhile, at two edges
The side of bone plate main body 1 between tooth 2 is also to design in concave arc, and further, hole 10 is auxiliarily fixed in concave arc formation, described auxiliary
Fixation hole 10 is helped to be formed with opening.
Further, the bone plate main body 1 further includes the first extension 8 and the second extension 9, as shown in fig. 6, described
When one extension 8 and the second extension 9 are fixed, the bone being fixed on except posterior wall of acetabulum, meanwhile, second extension 9 with
The fixation hole of the junction of the bone plate main body 1 is strip, the different shapes with remaining fixation hole, such strip
Deformation of the fixation hole in moulding does not influence the normal fastening of screw, meanwhile, it is capable to preferably fix bone plate；More into one
Step, on first extension 8 and the second extension 9, in addition to two sides concave arc design, far from edge teeth 2 end and
Its two sides is also inclined surface design, meanwhile, the inclination angle beta of two sides is 10-15 degree, the two sides of first extension 8
The chamfered design in the lower part of inclined surface makes the smooth of the edge, reduces the stimulation to soft tissue；Further, as the bone plate
The shape of main body 1 (including first extension 8 and the second extension 9), it is best for certainly meeting bone physiology shape, but
Be it is difficult to realize, can only go to approach, in the present embodiment, the part for the bone plate main body 1 being fixed on posterior wall of acetabulum is in substantially
Arc (close to the shape of posterior wall of acetabulum) design, the first extension 8 extend along above-mentioned curved cut line, the second extension 9 and fixation
The angled design in part of bone plate main body 1 on posterior wall of acetabulum, when specifically used, then is finely tuned, and certainly, can also be made into
Planar, when use, carries out moulding again.
It should be noted that due to the symmetrical structure of pelvis, so, edge 2 can also be in the another of the bone plate main body 1
Side；The fixation hole, strip fixation hole and be auxiliarily fixed hole shape can be it is in the prior art it is any be suitable for bone
Screw fixed hole on plate, such as straight hole are also possible to following shape: as shown in Fig. 3,4,7,8, being two layers of perforation, lean on
One layer of nearly bone face is straight hole, the side wall in one layer of the hole far from bone face be the spherical cambered surface of spherical cambered surface or several connections be connected and
At facilitating the fixation of spheric nut or hemispherical nut.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (9)
1. a kind of posterior wall of acetabulum bone plate characterized by comprising
It is provided with the bone plate main body of several fixation holes, is had for being attached to the positive of bone surface and backwards to positive back
Face is provided with several edge teeths in the side of the bone plate main body, in the end far from the bone plate main body of edge teeth
It is formed with fixed jaw.
2. bone plate according to claim 1, which is characterized in that the edge teeth is formed with card slot.
3. bone plate according to claim 2, which is characterized in that the arc-shaped transition in trough rim junction of the card slot.
4. bone plate according to claim 1 to 3, which is characterized in that the surface of the edge teeth and the bone plate
Angle [alpha] between the back side of main body is 15-20 degree.
5. bone plate according to claim 4, which is characterized in that the back side of the bone plate main body is formed with two inclinations
Face, inclination angle beta are 10-15 degree.
6. bone plate according to claim 5, which is characterized in that the front of the bone plate main body is formed with arcwall face.
7. bone plate according to claim 6, which is characterized in that the bone plate main body further includes the first extension and
Two extensions, when first extension and the second extension are fixed, the bone that is fixed on except posterior wall of acetabulum.
8. bone plate according to claim 7, which is characterized in that the two sides of the bone plate main body are connected in concave arc transition
Design.
9. bone plate according to claim 8, which is characterized in that the bone plate main body between two adjacent edge uncinus
Side on formed hole is auxiliarily fixed, the hole that is auxiliarily fixed is formed with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820435326.0U CN208769964U (en) | 2018-03-29 | 2018-03-29 | A kind of posterior wall of acetabulum bone plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820435326.0U CN208769964U (en) | 2018-03-29 | 2018-03-29 | A kind of posterior wall of acetabulum bone plate |
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| CN208769964U true CN208769964U (en) | 2019-04-23 |
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| CN201820435326.0U Active CN208769964U (en) | 2018-03-29 | 2018-03-29 | A kind of posterior wall of acetabulum bone plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403198A (en) * | 2018-03-29 | 2018-08-17 | 江苏百易得医疗科技有限公司 | A kind of posterior wall of acetabulum bone plate |
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2018
- 2018-03-29 CN CN201820435326.0U patent/CN208769964U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108403198A (en) * | 2018-03-29 | 2018-08-17 | 江苏百易得医疗科技有限公司 | A kind of posterior wall of acetabulum bone plate |
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