CN209153940U - A kind of reset support construction for fracture of neck of femur - Google Patents
A kind of reset support construction for fracture of neck of femur Download PDFInfo
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- CN209153940U CN209153940U CN201820677142.5U CN201820677142U CN209153940U CN 209153940 U CN209153940 U CN 209153940U CN 201820677142 U CN201820677142 U CN 201820677142U CN 209153940 U CN209153940 U CN 209153940U
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Abstract
The utility model discloses a kind of reset support construction for fracture of neck of femur, the reset support construction includes: locking steel plate, sleeve and the first screw；The inner surface of the locking steel plate is in the bending to match with femoral greater trochanter；The locking steel plate includes: steel plate head, steel plate cadre and steel plate tail；It is arranged on the locking steel plate there are three the first screw hole in isosceles triangle arrangement, the bottom edge of the isosceles triangle extends along the side directions of the locking steel plate；The sleeve is set in first screw hole；The tail portion of first screw is set in the sleeve.The support construction provided by the utility model that resets can realize stable reset support to fracture of neck of femur；Easy to operate, better reduction, patient trauma are small.
Description
Technical field
The utility model relates to medical instruments fields, specifically, being related to a kind of reset support for fracture of neck of femur
Structure.
Background technique
Fracture of neck of femur refers to the fracture by femoral head between base of nebk ot femur.Fracture of neck of femur often betides always
Year people.As the service life of people extends, gradually aging especially with population structure, the disease incidence day of fracture of neck of femur is cumulative
It is high.
There are two main bugbears of nonunion and femoral head ischemic necrosis in the clinical treatment of fracture of neck of femur.Face
The modus operandi that fracture of neck of femur is treated on bed is more, and the most commonly used is reduction fixation operations.If patient is younger, do not need
Hip replacement surgery is taken, femoral head is retained, is often used reduction fixation operation.
Reduction fixation operation is broadly divided into two ways: the first is open reduction and Kirschner wire fixation, and this method can be to femur
Rear carries out bone grafting at fracture of cervical vertebra, and the surgical procedure visual field is big, resets and is easy；But the Posterior approach cut is big to angiolysis,
It is unfavorable for the healing of fracture, the risk of avascular necrosis of femoral head is increased.The second way is closed reduction, and this method is not
The blood vessel for destroying rear is conducive to the healing of fracture, can significantly reduce the risk of avascular necrosis of femoral head.For the age 65
Year shift-type patients with fracture of neck below, fixation is the therapeutic modality of first choice in closed reduction.But closed reduction bone grafting
Difficulty, fracture defect can not effectively make up, and increase the bed rest time of patient.
Currently used fracture of neck of femur resets pair that system DHS (the outer internal fixation system of marrow) has static(al) and Dynamic compression
Recast is used, and sliding nail board fixer is combined with Internal fixation Pressure device, is pressurizeed by pressurized screw fracture end,
Load reaches femoral shaft by nail-plate, to reduce the shearing of fracture, and then promotes union.But due to its side steel plate position
It will lead to screw cutting femoral head, interior fixed displacement or the abjection of steel plate side screw etc. in the defect of lateral side of femur, and inside cortex
Accident.Therefore the failure rate of tradition DHS fixed system is up to 24%~56%, and operating time is longer, and amount of bleeding is more.
Therefore, it is badly in need of a kind of fracture of neck of femur reset support construction at present, solves conventional femoral fracture of cervical vertebra resetting apparatus and deposit
The problem of.
Utility model content
In order to solve the problems, such as that existing fracture of neck of femur support device exists, that realizes fracture of neck of femur stablizes support, this
Utility model provides a kind of reset support construction of fracture of neck of femur.
One aspect according to the present utility model provides a kind of reset support construction for fracture of neck of femur, feature
It is, the reset support construction includes: locking steel plate, sleeve and the first screw；
The inner surface of the locking steel plate is in the bending to match with femoral greater trochanter；
The locking steel plate includes: steel plate head, steel plate cadre and steel plate tail；
In the first screw hole of isosceles triangle arrangement, the isosceles triangle there are three being arranged on the locking steel plate
Bottom edge along the locking steel plate side directions extend；
The sleeve is set in first screw hole；
The tail portion of first screw is set in the sleeve.
A specific embodiment according to the present utility model, the sleeve is by the middle part of sleeve head, sleeve and sleeve bottom
Portion's three parts composition；
The sleeve head matches setting with the first screw hole on the locking steel plate；
It is that double thread is arranged in the middle part of the sleeve；
The sleeve bottom be outside be hexagon, inner edge is round hollow prism structure.
Another embodiment according to the present utility model, first screw hole are oriented sliding locking and pressurizing spiral shell
Nail hole.
Another specific embodiment according to the present utility model, the screw-in direction of first screw and the locking steel
Angle between plate is between 118 °~122 °.
Another specific embodiment according to the present utility model, first screw are hollow screw, and internal diameter exists
Between 2.0mm~2.65mm.
Another specific embodiment according to the present utility model,
The locking steel plate with a thickness of 6.9mm~7.3mm；
Minister 10mm~45mm in the sleeve.
Another specific embodiment according to the present utility model, first screw hole are arranged in isosceles triangle, should
Isosceles triangle waist long 12mm~14mm, bottom side length 19.1mm~21.1mm.
Another specific embodiment according to the present utility model, first screw length are 60mm~110mm, diameter
For 7mm, reach is 20mm~70mm.
Another specific embodiment according to the present utility model,
The length of the sleeve head is 1mm~35mm；
The diameter of the sleeve head is 7mm~9mm；
The sleeve head with a thickness of 1.1mm~1.3mm.
Another specific embodiment according to the present utility model, the length of the sleeve bottom are 10mm~45mm；
The outer diameter of the sleeve bottom is 7mm；
The internal diameter of the sleeve bottom is 5.6mm；
The sleeve bottom with a thickness of 0.7mm.
The reset support construction of fracture of neck of femur provided by the utility model is made of locking steel plate, sleeve and screw.Its
In, the first screw hole being set on locking steel plate is oriented sliding locking and pressurizing screw hole, and it is a kind of immediately fixed to be capable of providing
To sliding pressor effect, general double screw systems " Z-shaped effect " are avoided, avoid single screw because resisting caused by anchor resultant force deficiency
The drawbacks such as rotatory power difference.Meanwhile by the restriction to three the first screw hole locations, can further promote the first screw and
Sleeve synchronous slide reaches the effect of best anti-rotation, finally improves the overall stability of the reset support construction.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the utility model
Other features, objects and advantages will become more apparent upon:
Fig. 1 show one of the locking steel plate of the reset support construction according to fracture of neck of femur provided by the utility model
The front view of specific embodiment；
Fig. 2 show one of the sleeve of the reset support construction according to fracture of neck of femur provided by the utility model specifically
The side view of embodiment；
Fig. 3 show one of the sleeve head of the reset support construction according to fracture of neck of femur provided by the utility model
The side view of specific embodiment；
Fig. 4 show the first lock screw of the reset support construction according to fracture of neck of femur provided by the utility model
The side view of one specific embodiment；
The same or similar appended drawing reference represents the same or similar component in attached drawing.
Specific embodiment
Following disclosure provides many different embodiments or example is used to realize the different structure of the utility model.For
The disclosure of simplified the utility model, is hereinafter described the component of specific examples and setting.In addition, the utility model can
With repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself does not refer to
Show the relationship between discussed various embodiments and/or setting.It should be noted that in the accompanying drawings illustrated component not necessarily press than
Example is drawn.The description to known assemblies and treatment technology and process is omitted to avoid this reality is unnecessarily limiting in the utility model
With novel.
Referring to attached drawing 1~4, the utility model provides a kind of reset support construction for fracture of neck of femur.It is described multiple
Position support construction includes: locking steel plate 10, sleeve 30 and the first screw 21.
The inner surface of the locking steel plate 10 is in the bending that matches with femoral greater trochanter, for being preferably bonded and femur
Greater trochanter part, to play good supporting role.
Referring to Fig. 1, the locking steel plate 10 includes: steel plate head 11, steel plate cadre 12 and steel plate tail 13.
In the first screw hole 20 of isosceles triangle arrangement, three the first screw holes there are three being arranged on the steel plate 10
20 are respectively arranged in steel plate head 11 and steel plate cadre 12, and arrange in isosceles triangle.Wherein, the two of the isosceles triangle
A base angle is respectively directed to the head end and tail end of locking steel plate 10, i.e., the bottom edge of the described isosceles triangle is along the locking steel plate 10
Side directions extend.
Preferably, first screw hole 20 is oriented sliding locking and pressurizing screw hole.In use, sleeve 30 is along first
Screw hole 20 accurately screws in.It provides a kind of instant oriented sliding pressor effect, avoids " the Z-shaped of general double screw systems
Effect ", can also to avoid single screw because anchor resultant force it is insufficient caused by the drawbacks such as anti-rotation performance difference.
Needing preferably to reach said effect, the position setting of the first screw hole 20 is particularly important, therefore more preferably,
First screw hole 20 in isosceles triangle arrange, the long 12mm~14mm of the isosceles triangle waist, such as: 12mm, 13mm or
Person 14mm；Bottom side length 19.1mm~29.1mm of the isosceles triangle, such as: 19.1mm, 25mm or 29.1mm.
When in use, the sleeve 30 is set in first screw hole 20.Referring to fig. 2, the sleeve 30 is by sleeve
First 31, sleeve middle part 32 and 33 three parts of sleeve bottom composition.
The sleeve head 31 matches setting with the first screw hole 20 on the locking steel plate 10.32 in the middle part of the sleeve
For double thread setting.The sleeve bottom 33 be outside be hexagon, inner edge is round hollow prism structure, as shown in Figure 3.
Since sleeve 30 and locking steel plate 10 match, the size of sleeve 30 and the size of locking steel plate 10 need
Matching setting.Preferably, the locking steel plate 10 with a thickness of 6.9mm~7.3mm；Such as: the locking steel plate with a thickness of
6.9mm, 7.1mm or 7.3mm.32 long 10mm~45mm in the middle part of the sleeve；Such as: 32 length is in the middle part of the sleeve
10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm or 45mm.
The length of the sleeve head 31 is 1mm~35mm.Preferably, the length of the sleeve head 31 be 1mm,
14mm, 23mm or 35mm.The diameter of the sleeve head 31 is 7mm~9mm.Preferably, the diameter of the sleeve head 31
For 7mm, 8mm or 9mm.The sleeve head 31 with a thickness of 1.1mm~1.3mm.Preferably, the thickness of the sleeve head 31
Degree is 1.1mm, 1.2mm or 1.3mm.
The length of the sleeve bottom 33 is 10mm~45mm.Preferably, the length of the sleeve bottom 33 be 10mm,
15mm, 20mm, 25mm, 30mm, 35mm, 40mm or 45mm.Preferably, the outer diameter of the sleeve bottom 33 is 7mm, internal diameter is
5.6mm.The sleeve bottom 33 with a thickness of 0.7mm.
First screw 21 is set in the sleeve 30.In order to make the folder between the first screw 21 and locking steel plate 10
Angle is more in line with human body collodiaphyseal angle on the basis of can be realized fracture of neck of femur active homing, it is therefore preferred that described first
Angle between the screw-in direction of screw 21 and the locking steel plate 10 is between 118 °~122 °.Preferably, first spiral shell
Angle between the screw-in direction and the locking steel plate 10 of nail 21 is 118 °, 120 ° or 122 °.More preferably, described first
Angle between screw 21 and the locking steel plate 10 is 120 °.
Referring to fig. 4, first screw 21 is hollow screw, and internal diameter is between 2.0mm~2.65mm.First spiral shell
The head of nail 21 is shape of threads, which can play self-locking to intertrochanteric fracture, and bending resistance is strong, can make to lock
Being bonded for steel plate 10 and femur more firm is not easy to disconnect.Preferably, the internal diameter of first screw 21 be 2.0mm, 2.4mm or
2.65mm.First screw, 21 length is 60mm~110mm.Preferably, 21 length of the first screw be 60mm, 65mm,
70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm or 110mm.Due in use, the first screw
21 need inside sleeve 30, therefore the diameter of the first screw 21 needs and the diameter of sleeve 30 matches, therefore, described the
The diameter of one screw 21 is 7mm.The reach of first screw 21 is 20mm~70mm.Preferably, first screw
21 reach is 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm or 70mm.
Several optional sizes of the first screw 21 are listed in the following table for reference, but those skilled in the art note, institute
The selection for stating the first screw 21 is not limited to this.
| Specification | Product code |
| φ7×60 | DZZR0555 |
| φ7×65 | DZZR0556 |
| φ7×70 | DZZR0557 |
| φ7×75 | DZZR0558 |
| φ7×80 | DZZR0559 |
| φ7×85 | DZZR0560 |
| φ7×90 | DZZR0561 |
| φ7×95 | DZZR0562 |
| φ7×100 | DZZR0563 |
| φ7×105 | DZZR0564 |
| φ7×110 | DZZR0565 |
Since the first screw hole 20 is sliding locking and pressurizing screw hole, the first hollow screw 21 is covered with independent locking
Cylinder 30 synchronous slides characteristic can achieve the effect that synchronize anti-rotation, finally further improve the stability of locking steel plate 10.
With reference to Fig. 1, fixed effect in order to further increase, reset support construction provided by the utility model further includes at least
Two the second screw holes 22 and the second screw (not shown) with 22 quantity Matching of the second screw hole.Second spiral shell
Nail hole 22 is set on the locking steel plate 10, and second screw passes through second screw hole 22, and by the locking steel
The steel plate cadre 12 of plate is fixed on the outside of femoral shaft.
Second screw hole 22 is combined with the first screw hole 20, and the reset support construction can be made to be better achieved to femur
The replacement and fixation of fracture of cervical vertebra.
The specifically used method provided by the utility model for resetting support construction can be found in following steps: firstly, will locking
Steel plate is attached at femoral greater trochanter lower outer, pierces 3 pieces of guide pins into neck of femur, femoral head using suitable angle；Secondly,
Guide pin is successively successfully placed in, i.e., perspective guide pin position it is good after, select 3 pieces of matched first screws 21, and by first spiral shell
21 installation of nail is into the first screw hole 20；And then it is injected from the tail portion of the first screw 21 and screws in matched sleeve 30；
Screw-in depth and position are checked by perspective in rotary course；Finally, being carried out in firm after perspective is shown in that fracture site resets well
It is fixed, entire reset is completed immediately supports operation.
The independent set stack structure of the utility model innovative design, has the advantage that firstly, provided by the utility model multiple
Position support construction has used relatively independent sleeve, the first screw and locking steel plate, and it is more flexible, accurate to make to operate, and drops simultaneously
Low production cost；Secondly, on biomethanics structure, by the oriented sliding structure of independent sleeve and the first screw, both
Dynamic pressurization effect is enhanced at double, and improves the effect of synchronous limitation rotation, and it is poor to overcome the anti-rotation ability of traditional DHS
Defect.Reduction of the fracture panelling can be effectively kept, disunion rate and complication is reduced, expands treatment model to a certain extent
It encloses；Finally, due to be absolute construction, therefore it can be put step by step in art, wound is small in patient's art, post-operative recovery is fast.
Although being described in detail about example embodiment and its advantage, it should be understood that in the essence for not departing from the utility model
In the case where protection scope refreshing and defined in the appended claims, these embodiments can be carried out with various change, replace and repair
Change.For other examples, those skilled in the art, which should be readily appreciated that, to be kept in scope of protection of the utility model
Meanwhile the order of processing step can change.
Claims (10)
1. a kind of reset support construction for fracture of neck of femur, which is characterized in that the reset support construction includes: locking steel
Plate, sleeve and the first screw；
The inner surface of the locking steel plate is in the bending to match with femoral greater trochanter；
The locking steel plate includes: steel plate head, steel plate cadre and steel plate tail；
In the first screw hole of isosceles triangle arrangement, the bottom of the isosceles triangle there are three being arranged on the locking steel plate
The side directions of locking steel plate described in edge extend；
The sleeve is set in first screw hole；
The tail portion of first screw is set in the sleeve.
2. reset support construction according to claim 1, which is characterized in that the sleeve is by sleeve head, sleeve middle part
It is formed with sleeve bottom three parts；
The sleeve head matches setting with the first screw hole on the locking steel plate；
It is that double thread is arranged in the middle part of the sleeve；
The sleeve bottom be outside be hexagon, inner edge is round hollow prism structure.
3. reset support construction according to claim 1, which is characterized in that first screw hole is oriented sliding pressurization
Screw hole.
4. reset support construction according to claim 1, which is characterized in that the screw-in direction of first screw with it is described
Angle between locking steel plate is between 118 °~122 °.
5. reset support construction according to claim 1, which is characterized in that first screw is hollow screw, in
Diameter is between 2.0mm~2.65mm.
6. reset support construction according to claim 2, which is characterized in that
The locking steel plate with a thickness of 6.9mm~7.3mm；
Minister 10mm~45mm in the sleeve.
7. reset support construction according to claim 1, which is characterized in that first screw hole is arranged in isosceles triangle
Column, the isosceles triangle waist long 12mm~14mm, bottom side length 19.1mm~29.1mm.
8. reset support construction according to claim 1, which is characterized in that first screw length be 60mm~
110mm, diameter 7mm, reach are 20mm~70mm.
9. reset support construction according to claim 1, which is characterized in that
The length of the sleeve head is 1mm~35mm；
The diameter of the sleeve head is 7mm~9mm；
The sleeve head with a thickness of 1.1mm~1.3mm.
10. reset support construction according to claim 1, which is characterized in that the length of the sleeve bottom be 10mm~
45mm；
The outer diameter of the sleeve bottom is 7mm；
The internal diameter of the sleeve bottom is 5.6mm；
The sleeve bottom with a thickness of 0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677142.5U CN209153940U (en) | 2018-05-08 | 2018-05-08 | A kind of reset support construction for fracture of neck of femur |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820677142.5U CN209153940U (en) | 2018-05-08 | 2018-05-08 | A kind of reset support construction for fracture of neck of femur |
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| Publication Number | Publication Date |
|---|---|
| CN209153940U true CN209153940U (en) | 2019-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820677142.5U Active CN209153940U (en) | 2018-05-08 | 2018-05-08 | A kind of reset support construction for fracture of neck of femur |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742812A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of reset support construction for fracture of neck of femur |
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2018
- 2018-05-08 CN CN201820677142.5U patent/CN209153940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742812A (en) * | 2018-05-08 | 2018-11-06 | 中国人民解放军总医院 | A kind of reset support construction for fracture of neck of femur |
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