CN207286129U - A kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider - Google Patents
A kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider Download PDFInfo
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- CN207286129U CN207286129U CN201720171480.7U CN201720171480U CN207286129U CN 207286129 U CN207286129 U CN 207286129U CN 201720171480 U CN201720171480 U CN 201720171480U CN 207286129 U CN207286129 U CN 207286129U
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Abstract
The utility model discloses a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider, including pressing means, the pilot hole of Kirschner wire is equipped with the middle part of the pressing means；Further include straight-bar, connected between pressing means and the straight-bar by connecting portion, pressing means are the structure that can be moved along the axially opposing connecting portion of the pilot hole, one end of straight-bar, which is equipped with, to be used to coordinate the barb for jointly compressing the acetabular posterior column of fracture with pressing means, and limiting slot corresponding with Kirschner wire one end is equipped with being oriented to the corresponding position of extended line of axially bored line on the barb.The fracture of the posterior wall of the acetabulum replacement and fixation guider provided by the utility model, its is simple in structure, conveniently stretch on the inside of the basin bone of patient, fixation and pressure effect to the fracture of the posterior wall of the acetabulum position is good, it is accurate to the guiding of Kirschner wire, Kirschner wire can enter limiting slot from one end that acetabular posterior column is pierced by, and prevent Kirschner wire from deviating.
Description
Technical field
Clinical medicine Orthopeadic Surgery field is the utility model is related to, more particularly to a kind of the fracture of the posterior wall of the acetabulum replacement and fixation is oriented to
Device.
Background technology
The acetabular posterior column or transverse fracture of human pelvis, especially without the rear pillar fracture substantially shifted, rear pillar pulling force spiral shell
The part as Complex Acetabular operation is followed closely, often joint steel plate screw, which uses, fixes.The implantation of rear pillar screw usually may be used
Using direct motion, either Retrograde method Retrograde is more suitable for without the rear pillar or transverse fracture substantially shifted, originally grinding
Study carefully for the fracture of acetabulum for needing open Antegrade rear pillar screw operation.
Mainly passage is related in acetabular posterior column with screw for the implantation requirement of rear pillar screw and skill, and the passage of screw is main
It is in true pelvis upper limb iliac fossa, by acetabular posterior column, is passed through in acetabular posterior column between outer panel, goes directly ischial tuberosity.
Since acetabular posterior column is to belong to irregular sclerotin, the sclerotin thickness of outer panel, shape heterogeneity in ischial tuberosity, acetabular posterior column,
Determine its rear pillar screw conduits has certain limitation, and briefly, rear pillar screw conduits have certain safety zone,
It is required that screw must can not be pierced by cortex or enter in articular cavity completely within rear pillar sclerotin.Therefore, after this is just determined
Column screw placement must be paid close attention to and solve the problems, such as following：1st, entry point.Since Antegrade entry point depends on its end
Point must be by ischial tuberosity, therefore its entry point and extemporal index point can refer to；2nd, into nail angle.It is absolute into nail process
Cortex cannot be pierced by or into articular cavity, due to the limitation of safety zone, into nail angle completely by patient's experience or
Person has an X-rayed trial and completes repeatedly.Not for the apparatus that is directed specifically at of rear pillar screw among clinical, completely by patient individual's
Skill experience, Kirschner wire trial is used for multiple times in art, having an X-rayed repeatedly can just complete.
To the fixation of the fracture of the posterior wall of the acetabulum in clinic, due to unspecial instrument, point-type reset forceps are generally adopted by
It is fixed.It is arc-shaped yet with this kind of fixture body of rod, and the organ of human abdomen is located on the inside of basin bone, on the inside of acetabular posterior column
The only gap of about 5-7cm, conventional brace are inconvenient to stretch into the gap and the upper and lower side of acetabular posterior column compress admittedly
It is fixed, and on forcipate fixture the guide part of Kirschner wire and limiting section respectively on two calipers of fixture, and its be around
What fixing point rotated, since the basin bone shape of each patient is different, in actual use between the guide part and limiting section of fixture
Alignment is poor, and offset occurs in one end that Kirschner wire is pierced by from bone, can not be corresponding with limiting section, so as to influence Kirschner wire
Puncture precision, and the offset of Kirschner wire can make rear pillar screw shift therewith, since the thickness ratio of acetabular posterior column is relatively thin,
Rear pillar screw after offset has the risk exposed from acetabular posterior column side, reduces fixed effect.
This research is in view of the above problems, be intended to develop new the fracture of the posterior wall of the acetabulum replacement and fixation guider.
Utility model content
The purpose of this utility model is to provide a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider, its is simple in structure, convenient
To stretch on the inside of the basin bone of patient, the fixation and pressure effect to the fracture of the posterior wall of the acetabulum position are good, accurate to the guiding of Kirschner wire, gram
Family name's pin can enter limiting slot from one end that acetabular posterior column is pierced by, and prevent Kirschner wire from deviating.
To achieve the above object, the utility model provides a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider, including pressurization
Part, the pressing means middle part are equipped with the pilot hole of Kirschner wire；Straight-bar is further included, is connected between pressing means and the straight-bar by connecting portion
Connect, pressing means are the structure that can be moved along the axially opposing connecting portion of the pilot hole, one end of straight-bar be equipped be used for
Pressing means coordinate the barb for jointly compressing the acetabular posterior column of fracture, on the barb with to be oriented to the extended line of axially bored line corresponding
Position is equipped with limiting slot corresponding with Kirschner wire one end.
As further improvement of the utility model, the connecting portion includes the arc-shaped slide rail and sliding part that are adapted, and two
Locking mechanism is equipped between person, the arc-shaped slide rail is connected with the straight-bar, and the pressing means are flexibly connected with the sliding part,
The limiting slot is equipped with notch, and arc-shaped slide rail is using the notch center of limiting slot as the center of circle.
Further as the utility model is improved, and the sliding part is set on the arc-shaped slide rail, arc-shaped slide rail
The glide direction of middle part along sliding part be equipped with elongated slot, the pressing means pass through the elongated slot and sliding part.
Further as the utility model is improved, and the pressing means, to be threadedly coupled, are set with sliding part on pressing means
There is operation portion.
Further as the utility model is improved, and is tied between the arc-shaped slide rail and the straight-bar by connection by hand
Structure connects, and direction is extended along on straight-bar equipped with least two positions that can connect arc-shaped slide rail.
Further as the utility model is improved, and the straight-bar is equipped with the cushion block that can extend along direction movement.
Further as the utility model is improved, and towards one end of the limiting slot is taper knot on the pressing means
Structure.
Further as the utility model is improved, and the end face edge of the pyramidal structure is equipped with sawtooth portion.
Beneficial effect
Compared with prior art, the fracture of the posterior wall of the acetabulum replacement and fixation guider of the utility model has the following advantages：
1st, the straight-bar equipped with barb is convenient stretches on the inside of patient's basin bone and catches on the bottom of acetabular posterior column, and limiting slot is with adding
The guiding axially bored line of casting die corresponds to, and pressing means to ilium top close to during being pressed on ilium, being along being oriented to
The axis movement in hole, ensures the axis of pilot hole all the time against limiting slot, so that it is guaranteed that existing through Kirschner wire one end of pilot hole
Being passed through in ilium between outer panel, through ischial tuberosity simultaneously falls on the limiting slot of barb, improves the puncture precision of Kirschner wire,
Screw exposes from acetabular posterior column side when preventing from subsequently playing screw；
2nd, arc-shaped slide rail and sliding part coordinate, easy in surgical procedure according to the position tune of the shape of patient's basin bone and fracture
The position of pressing means is saved, and can guarantee that to fall on the limiting slot of barb through Kirschner wire one end of pressing means, no matter selection
Which enters pin mouth, can ensure that Kirschner wire will not shift after entering acetabular posterior column；
3rd, pressing means pass through the elongated slot and sliding part on arc-shaped slide rail, make the axis of straight-bar, barb, arc-shaped slide rail and pressing means
Line is located in approximately the same plane, makes the mechanical property of whole guider more stable, and acetabular bone is clamped jointly allowing pressing means and barb
It is less likely to occur torsional deformation during rear pillar；
4th, manual connection structure dismantles phase mutual energy between arc-shaped slide rail and straight-bar, after medical staff can be according to patient's acetabular bone
The actual conditions of spinous process of the seventh cervical vertebra folding, corresponding position on straight-bar is installed on by the arc-shaped slide rail of appropriate radian by manual connection structure,
Applicability is wider；
5th, cushion block can according to circumstances move on straight-bar and withstand on the inner side of acetabular posterior column, medical staff is selected pressing means
The efficiency of bit selecting will not be reduced when selecting pressing position because of often rocking；
6th, the pyramidal structure on pressing means makes the contact area of its end face and ilium top small, it is not easy to because of ilium surface
Out-of-flatness and influence contraposition accuracy；
7th, the sawtooth portion in pressing means pyramidal structure helps to prevent it in ilium slippery surface.
It will be become more fully apparent by following description and with reference to attached drawing, the utility model, these attached drawings are used to explain this
The embodiment of utility model.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of the fracture of the posterior wall of the acetabulum replacement and fixation guider；
Fig. 2 is a kind of usage state diagram of the fracture of the posterior wall of the acetabulum replacement and fixation guider；
Fig. 3 is the A direction views of Fig. 1；
Fig. 4 is the B direction views of Fig. 1；
Fig. 5 is the sawtooth portion structure diagram on pressing means.
In figure, straight-bar 1；Barb 2；Limiting slot 3；Sliding part 4；Pressing means 5；Arc-shaped slide rail 6；Limiting section 7；Cushion block 8；By hand
Connection structure 9；Kirschner wire 10；Sawtooth portion 11；Basin bone 12；Acetabular bone 13；Acetabular posterior column 14；Fracture 15.
Embodiment
The embodiment of the utility model is described referring now to attached drawing.
Embodiment
As shown in Figures 1 to 5, a kind of the fracture of the posterior wall of the acetabulum replacement and fixation is oriented to specific embodiment of the present utility model
Device, including pressing means 5, the middle part of pressing means 5 are equipped with the pilot hole 51 of Kirschner wire；Straight-bar 1 is further included, pressing means 5 are straight with this
Connected between bar 1 by connecting portion, pressing means 5 are the knot that can be moved along the axially opposing connecting portion of the pilot hole 51
Structure, one end of straight-bar 1, which is equipped with, to be used to coordinate the barb 2 for jointly compressing the acetabular posterior column 14 of fracture, acetabular posterior column with pressing means 5
After 14 are compacted, the bone section of 15 both sides of fracture is bonded to each other.It is corresponding with the extended line of 51 axis of pilot hole on barb 2
Position be equipped with limiting slot 3 corresponding with Kirschner wire one end.Straight-bar 1 equipped with barb 2 is convenient to be stretched into simultaneously on the inside of patient's basin bone
The bottom of acetabular posterior column 14 is caught on, limiting slot 3 is corresponding with 51 axis of pilot hole of pressing means 5, and pressing means 5 are to ilium top
During being pressed on ilium, moved along the axis of pilot hole 51, ensure that the axis of pilot hole 51 is opposite all the time
Limiting slot 3, so that it is guaranteed that being passed through through 10 one end of Kirschner wire of pilot hole 51 in ilium outer panel, go directly ischial tuberosity
And fall on the limiting slot 3 of barb 2, the puncture precision of Kirschner wire 10 is improved, screw is after acetabular bone when preventing from subsequently playing screw
Expose 14 side of column.
The connecting portion includes the arc-shaped slide rail 6 and sliding part 4 being adapted, between the two equipped with locking mechanism 41, this reality
Apply in example, locking mechanism 41 is the handwheel equipped with screw rod, which passes through the side wall of sliding part 4, both are threadedly coupled, screw rod
One end is pressed on arc-shaped slide rail 6.The arc-shaped slide rail 6 is connected with the straight-bar 1, the pressing means 5 and the activity of sliding part 4
Connection, the limiting slot 3 are equipped with notch, and arc-shaped slide rail 6 is using the notch center of limiting slot 3 as the center of circle.One end of arc-shaped slide rail 6
Equipped with the limiting section 7 for preventing that sliding part 4 from deviating from.
The sliding part 4 is set on the arc-shaped slide rail 6, and the middle part of arc-shaped slide rail 6 is set along the glide direction of sliding part 4
There is elongated slot 61, the pressing means 5 pass through the elongated slot 61 and sliding part 4.
To be threadedly coupled, pressing means 5 are equipped with operation portion 52 for the pressing means 5 and sliding part 4, in the present embodiment, operate
Portion 52 is the body of rod through 5 side wall of pressing means.
Connected between the arc-shaped slide rail 6 and the straight-bar 1 by manual connection structure 9, direction is extended along on straight-bar 1
Equipped with least two positions that can connect arc-shaped slide rail 6.In the present embodiment, manual connection structure 9 includes bolt and nut group, arc
Slide 6 and straight-bar 1 are equipped with corresponding through hole, by the way that bolt to be passed through to through hole and and nut on arc-shaped slide rail 6 and straight-bar 1
Connect to fix both relative positions.
The straight-bar 1 is equipped with the cushion block 8 that can extend along direction movement.
Towards one end of the limiting slot 3 it is pyramidal structure on the pressing means 5.
The end face edge of the pyramidal structure is equipped with sawtooth portion 11.
The utility model is described above in association with most preferred embodiment, but the utility model is not limited to the above and takes off
The embodiment shown, and modification, equivalent combinations that various essence according to the present utility model carry out should be covered.
Claims (8)
1. a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider, including pressing means (5), it is characterised in that in the pressing means (5)
Portion is equipped with the pilot hole (51) of Kirschner wire；Straight-bar (1) is further included, is connected between pressing means (5) and the straight-bar (1) by connecting portion
Connect, pressing means (5) are can be along the structure of the axially opposing connecting portion movement of the pilot hole (51), one end of straight-bar (1)
Equipped with for coordinating the barb (2) for jointly compressing the acetabular posterior column of fracture with pressing means (5), on the barb (2) and pilot hole
(51) the corresponding position of the extended line of axis is equipped with limiting slot (3) corresponding with Kirschner wire one end.
A kind of 2. the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 1, it is characterised in that the connecting portion
Including the arc-shaped slide rail (6) and sliding part (4) being adapted, between the two equipped with locking mechanism (41), the arc-shaped slide rail (6) with
Straight-bar (1) connection, the pressing means (5) are flexibly connected with the sliding part (4), and the limiting slot (3) is equipped with notch,
Arc-shaped slide rail (6) is using the notch center of limiting slot (3) as the center of circle.
A kind of 3. the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 2, it is characterised in that the sliding part
(4) it is set on the arc-shaped slide rail (6), the middle part of arc-shaped slide rail (6) is equipped with elongated slot along the glide direction of sliding part (4)
(61), the pressing means (5) pass through the elongated slot (61) and sliding part (4).
A kind of 4. the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 1, it is characterised in that the pressing means
(5) with sliding part (4) to be threadedly coupled, pressing means (5) are equipped with operation portion (52).
5. a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 2, it is characterised in that the arc is slided
It is connected between rail (6) and the straight-bar (1) by manual connection structure (9), direction is extended along on straight-bar (1) equipped with least two
A position that can connect arc-shaped slide rail (6).
6. a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 1 to 5 any one, its feature exist
In the straight-bar (1) is equipped with the cushion block (8) that can extend along direction movement.
7. a kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 1 to 5 any one, its feature exist
In towards one end of the limiting slot (3) being pyramidal structure on the pressing means (5).
A kind of 8. the fracture of the posterior wall of the acetabulum replacement and fixation guider according to claim 7, it is characterised in that the taper knot
The end face edge of structure is equipped with sawtooth portion (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171480.7U CN207286129U (en) | 2017-02-24 | 2017-02-24 | A kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171480.7U CN207286129U (en) | 2017-02-24 | 2017-02-24 | A kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider |
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| Publication Number | Publication Date |
|---|---|
| CN207286129U true CN207286129U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720171480.7U Active CN207286129U (en) | 2017-02-24 | 2017-02-24 | A kind of the fracture of the posterior wall of the acetabulum replacement and fixation guider |
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| CN (1) | CN207286129U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720913A (en) * | 2018-06-29 | 2018-11-02 | 宁波市第六医院 | A kind of pelvis front pillar marrow interior locating device |
| CN109820591A (en) * | 2019-03-13 | 2019-05-31 | 华中科技大学同济医学院附属协和医院 | A kind of reduction of the fracture guiding fixator based on pelvis Minimally Invasive Surgery |
| CN109893237A (en) * | 2019-04-16 | 2019-06-18 | 常州市第二人民医院 | A kind of outer fixation sets nail and aims at locator |
-
2017
- 2017-02-24 CN CN201720171480.7U patent/CN207286129U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720913A (en) * | 2018-06-29 | 2018-11-02 | 宁波市第六医院 | A kind of pelvis front pillar marrow interior locating device |
| CN109820591A (en) * | 2019-03-13 | 2019-05-31 | 华中科技大学同济医学院附属协和医院 | A kind of reduction of the fracture guiding fixator based on pelvis Minimally Invasive Surgery |
| CN109893237A (en) * | 2019-04-16 | 2019-06-18 | 常州市第二人民医院 | A kind of outer fixation sets nail and aims at locator |
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