CN208851615U - It is a kind of for treating the bone fixation plate of condylar fracture in femur - Google Patents
It is a kind of for treating the bone fixation plate of condylar fracture in femur Download PDFInfo
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- CN208851615U CN208851615U CN201721156482.5U CN201721156482U CN208851615U CN 208851615 U CN208851615 U CN 208851615U CN 201721156482 U CN201721156482 U CN 201721156482U CN 208851615 U CN208851615 U CN 208851615U
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- femur
- bone fixation
- fixation plate
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Abstract
The utility model relates to a kind of for treating the bone fixation plate of condylar fracture in femur, the bone fixation plate includes the tail portion for being fixedly connected with shaft of femur, the head for fixing with condyle in femur and the interconnecting piece for connecting head and tail portion, the main view shape of the tail portion and the shape of shaft of femur match, the shape of condyle matches in the shape and femur on head, and the bone fixation plate is equipped with screw hole.Compared with prior art, the bone fixation steel plate of the utility model more adapts to the anatomical form shape of condyle side in femur, and sticking nature is good, and fixed operation is convenient；And the side view of this bone fixation plate, the shape of distal part of femur can be effectively adapted to, protects collateral ligaments not receive compressing, abrasion, reduces the pain of patient.
Description
Technical field
The utility model relates to medical device appliances technical fields, and in particular to a kind of for treating condylar fracture in femur
Bone fixation plate.
Background technique
Femoral-posterior condyles fracture is also called HOFFA fracture, was put forward for the first time and was named in 1904 by Albert Hoffa.
Hoffa fracture belongs to intra-articular fracture, is the Coronal fracture at distal part of femur list condyle or double condyle rears, including condylar fracture in femur
It fractures with femoral lateral condyle, accumulative femoral-posterior condyles fracture (i.e. HOFFA fracture) accounts for about 2%.Type fracture is more common in traffic accident, height
Sky falls contour Energy Damage, and fracture end is unstable in the vertical and horizontal direction, seriously affects knee joint weight bearing and walking
Function, treatment are not good at, then disability rate is high.In addition to fissure fracture, internal fixation operation of cutting and resetting treatment is required, due to
HOFFA fracture lacks dedicated dissection locking steel plate, fixes frequently with the steel plate or hollow nail at other positions.
As Chinese patent CN103083072 discloses a kind of screw fractured applied to femoral-posterior condyles, including component A and group
Part B, component A are non-hollow structure, are made of screw thread 1, screw thread 2, and component B is inner hollow, and the front end component B is provided with screw thread 5,
Screw thread 5 and screw thread 2 are coaxial threaded, and the screw thread 2 of screw thread 5 and component A matches, and the tail portion of screw thread 2 is triangular prism, described group
The length of part B is the 1/2 to 1/4 of component A.But since the screw fixed bit is few, position is mismatched, and often results in fixed failure,
Sclerite displacement, leads to operative failure.In addition, as used existing locking steel plate, since steel plate edge is without pre-bending angle, for
The friction stimulation of lateral collateral ligament starting point is big, and easily generation lateral collateral ligament is because of Damage and Fracture caused by fixed friction.The above
The effect of HOFFA fracture fixation in factors influence, there are the complication such as anatomical shape mismatch, insufficient rigidity, ligament injury
The disadvantages of more.
Utility model content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide it is a kind of safely and effectively,
The easy to operate bone fixation plate for being used to treat condylar fracture in femur.
The purpose of this utility model can be achieved through the following technical solutions: a kind of for treating condylar fracture in femur
Bone fixation plate, the bone fixation plate include tail portion for being fixedly connected with shaft of femur, for the head fixed with condyle in femur with
And the interconnecting piece on connection head and tail portion, the main view shape of the tail portion and the shape of shaft of femur match, the shape on head with
The shape of condyle matches in femur, and the bone fixation plate is equipped with screw hole.By screw tail portion is fixedly connected with shaft of femur,
Head is fixedly connected with condyle in femur, increases fixed position, so as to effectively treat condylar fracture in femur.
The circular screwhole that diameter is 4.5mm is set in the tail portion and interconnecting piece, and the stomach discord interconnecting piece passes through screw
It is fixedly connected with the lower end of shaft of femur.
The circular screwhole that circular screwhole, diameter that diameter is 4.5mm are 3mm is set in the head, and in the head position
It is equipped with the circular screwhole that diameter is 4.5mm in the part of shaft of femur extension, head rest part is equipped with the circle that diameter is 3mm
Screw hole, and diameter is in 15 °~45 ° for the circular screwhole and bone fixation plate thickness direction of 3mm.In the circle of head setting minor diameter
Screw hole, and small diameter circular screw hole favours the thickness direction of bone fixation plate, so that being fixed conveniently, especially for by proximal edge
HOFFA fracture fixation is convenient, reliable.
The length on the head is 35~50mm, and the width on head is 40~55mm, and the length of interconnecting piece is 20~35mm,
The length of tail portion is 10~50mm, width 15mm, and it is different with the length of tail portion to migrate portion according to head length, width, connection
Be made into large, medium and small sequence and tail length variation can cut it is practical.
The side-glance shape of the bone fixation plate includes sequentially connected straight flange, curved surface side and bevel edge, and the straight flange corresponds to head
It is located at the part of shaft of femur extension in portion, the curved surface side is S-type, and the corresponding width of the bevel edge is 10mm.
The straight flange and bevel edge are in 10 °.The side view of bone fixation plate can effectively adapt to the shape of distal part of femur.?
In use, collateral ligaments is adhered in the outer surface due to condyle in femur, which is arranged on bevel edge on the outside of collateral ligaments
10 ° of tilting, avoids bone fixation plate from being completely covered on collateral ligaments, but there are certain gap between collateral ligaments,
It protects collateral ligaments not suffer oppression, wear, reduces the pain of patient.
The extended line of the tangent line and straight flange of the curved surface side and bevel edge contact point is in 150 °.
The bone fixation plate with a thickness of 2mm.
The material of the bone fixation plate is easy to pre-bending using the titanium alloy of 2mm for titanium alloy, to adapt to femur condyle solution
Cut open variation.
Compared with prior art, the beneficial effects of the utility model are embodied in following several respects:
1. the fixation steel plate more adapts to the anatomical form shape of condyle side in femur, sticking nature is good, and fixed operation is convenient；
2. the head lower part design aperture and inclined hole of fixed plate, convenient especially for the HOFFA fracture fixation by proximal edge,
Reliably；
3. side view can effectively adapt to the shape of distal part of femur, protects collateral ligaments not receive compressing, abrasion, reduce
The pain of patient；
4. interconnecting piece is in abnormal shape, to adapt to condylus medialis femoris to the profile variation of femur cadre, tail end length can basis
Fracture fixation needs to cut length；
5. fixed plate is bent thickness 2mm titanium alloy sheet, it is easy to pre-bending, to adapt to femur condyle anatomical variation.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the structural schematic diagram in the direction A-A in Fig. 1.
Wherein, 1 is head, and 2 be interconnecting piece, and 3 be tail portion, and 4 be screw hole.
Specific embodiment
It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model
It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited
In following embodiments.
Embodiment 1
As shown in Figs. 1-2, the fixed dedicated locking steel plate of a kind of distal femur entocondyle, the fixed plate are in " tadpole " moulding,
Match with distal femur entocondyle side dissection shape.Including head 1, interconnecting piece 2 and tail portion 3, it is equipped with screw hole 4.Tail portion 3
Length it is different according to the model of steel plate and length is different, length 40mm.Head 1 have 4.5mm large-diameter circular screw hole,
Wherein 3.0mm small-diameter screw-hole is designed to again with bone fixation plate thickness direction in 45 °, such as Fig. 1 institute the small diameter circular screw hole of 3mm
Show.In use, bone fixation plate is integrally inclined outwardly 25 °, the S-shaped curve in the middle part on head, head has 10mm to tilt C=below
15 ° of edges can according to need bending adjustment and adapt to condyle of femur edge contour, avoid the stimulation and abrasion to medial collateral ligament.
The bone fixation plate is bent thickness 2mm titanium alloy sheet, and intensity, histocompatbility are reliable, can arbitrarily shear,
Bending moulding according to the figure of sufferer and can be damaged the position length and position suitable according to actual needs shearing, fixed
The prefabricated arc of plate can be good at adapting to the form of distal femur external condyle, can effectively maintain the reduction of the fracture of condyle of femur,
It protects medial collateral ligament not suffer oppression simultaneously, stimulate, wearing.
Claims (5)
1. a kind of for treating the bone fixation plate of condylar fracture in femur, which is characterized in that the bone fixation plate includes being used for and femur
Tail portion, the head for being fixed with condyle in femur and the interconnecting piece for connecting head and tail portion that body is fixedly connected, the tail portion
Main view shape and the shape of shaft of femur match, the shape of condyle matches in the shape and femur on head, the bone fixation plate
It is equipped with screw hole；
The length on the head is 35~50mm, and the width on head is 40~55mm, and the length of interconnecting piece is 20~35mm, tail portion
Length be 10~50mm, width 15mm；
The side-glance shape of the bone fixation plate includes sequentially connected straight flange, curved surface side and bevel edge, and the straight flange corresponds in head
Positioned at the part of shaft of femur extension, the curved surface side is S-type, and the corresponding width of the bevel edge is 10mm；
The straight flange and bevel edge are in 10 °；
The extended line of the tangent line and straight flange of the curved surface side and bevel edge contact point is in 150 °.
2. according to claim 1 a kind of for treating the bone fixation plate of condylar fracture in femur, which is characterized in that the tail
The circular screwhole that diameter is 4.5mm is set in portion and interconnecting piece, and the tail portion and interconnecting piece pass through the lower end of screw and shaft of femur
It is fixedly connected.
3. according to claim 1 a kind of for treating the bone fixation plate of condylar fracture in femur, which is characterized in that the head
The circular screwhole that circular screwhole, diameter that diameter is 4.5mm are 3mm is set in portion, shaft of femur extension is located in the head
Part be equipped with the circular screwhole that diameter is 4.5mm, head rest part is equipped with the circular screwhole that diameter is 3mm, and diameter is
The circular screwhole and bone fixation plate thickness direction of 3mm is in 15 °~45 °.
4. according to claim 1 a kind of for treating the bone fixation plate of condylar fracture in femur, which is characterized in that the bone
Fixed plate with a thickness of 2mm.
5. according to claim 1 a kind of for treating the bone fixation plate of condylar fracture in femur, which is characterized in that the bone
The material of fixed plate is titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156482.5U CN208851615U (en) | 2017-09-11 | 2017-09-11 | It is a kind of for treating the bone fixation plate of condylar fracture in femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156482.5U CN208851615U (en) | 2017-09-11 | 2017-09-11 | It is a kind of for treating the bone fixation plate of condylar fracture in femur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208851615U true CN208851615U (en) | 2019-05-14 |
Family
ID=66409606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721156482.5U Expired - Fee Related CN208851615U (en) | 2017-09-11 | 2017-09-11 | It is a kind of for treating the bone fixation plate of condylar fracture in femur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208851615U (en) |
-
2017
- 2017-09-11 CN CN201721156482.5U patent/CN208851615U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190514 Termination date: 20190911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |