The oblique locking compoboard in pelvis medial wall
Technical field
The present invention relates to technical field of medical instruments, especially relate to the oblique locking compoboard in a kind of pelvis medial wall.
Background technology
Compound fracture of acetabulum is comparatively serious and the intra-articular fracture of complexity, mainly betide between twenty and fifty high-energy damage, its curative effect and prognosis and replacement and fixation quality closely related, particularly relate to all kinds fracture comprising acetabular bone four limit body, require anatomical reduction as far as possible during operation, early functional exercise can reduce the generation of long term complication.But for the fracture of acetabulum of complexity, especially relate to the comminuted fracture of Jiu Ding district, acetabular bone four limit body, due to the thinner and proximal femur head of the mortar top of acetabular bone, inwall, strongly limit and use internal fixtion type in this region.The conventional screw placement being parallel to four limit bodies is comparatively difficult, is easily strayed into articular cavity or pelvic cavity, even if reach anatomical reduction, long term also likely loss of reposition.Therefore, design meets topography to be beneficial to again the inside-fixture operated in doctor's art very important.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome in prior art fracture of acetabulum use internal fixtion type time, screw placement is comparatively difficult, easily enter the problem of articular cavity or pelvic cavity, there is provided a kind of pelvis medial wall oblique locking compoboard, effective fixing after can ensureing reset, a kind of inside-fixture only need be adopted just can to take into account the many fracture area of possibility, nail can be put safely and reduce operating difficulty.
The technical solution adopted for the present invention to solve the technical problems is: the oblique locking compoboard in a kind of pelvis medial wall, is characterized in that comprising:
Ilium plate, one side of described ilium plate is surface of bone contact surface, the shape of surface of bone contact surface of described ilium plate and the mating shapes of iliopectineal line, described ilium plate is provided with at least one ilium plate locating hole, and articular cavity and pelvic cavity can be avoided in the position of described ilium plate locating hole after ilium plate locating hole loads screw;
And
Ischium plate, one side of described ischium plate is surface of bone contact surface, the shape of surface of bone contact surface of described ischium plate and the mating shapes of the body of ischium of hipbone, described ischium plate is provided with at least one ischium plate locating hole, and articular cavity and pelvic cavity can be avoided in the position of described ischium plate locating hole after ischium plate locating hole loads screw;
And
Several fixing heads, a side of described fixing head is surface of bone contact surface, and described fixing head surface of bone contact surface adapts with the hipbone shape being fixed plate, and described fixing head is provided with some fixing head locating holes;
Described ilium plate is fixedly connected with ischium plate, and described fixing head is fixedly connected with ilium plate.
As preferably, described ilium plate locating hole is between iliopectineal line and iliac fossa, screw can be realized successively through arcuate line and body of ilium, be fixed at body of ischium inside, particularly relate to the fracture aspect of four limit body regions, adopt and thisly put nail method, covering fracture area that can be large as far as possible.
As preferably, described ilium plate locating hole and ischium plate locating hole are equipped with three.
As preferably, described fixing head is provided with four, is followed successively by
Article 1, fixing head, described first fixing head one end is fixedly connected with ilium plate, and the other end is fixedly connected with crista iliaca trailing edge, and fitting with iliac fossa in the middle part of described first fixing head is fixedly connected with;
Second fixing head, described second fixing head one end is fixedly connected with ilium plate, and the other end is fixedly connected with crista iliaca, and fitting with iliac fossa in the middle part of described second fixing head is fixedly connected with;
3rd fixing head, described 3rd fixing head one end is fixedly connected with ilium plate, and the other end is fixedly connected with anterior superior iliac spine top, and fitting with iliac fossa in the middle part of described 3rd fixing head is fixedly connected with; With
4th fixing head, described 4th fixing head one end is fixedly connected with ilium plate, and the other end is combed with ilium and is fixedly connected with, and fitting with iliopubic eminence in the middle part of described 4th fixing head is fixedly connected with.
As preferably, described 4th fixing head is three folding shapes, described 4th fixing head first folding one end is fixedly connected with ilium plate, described first folding is fitted with iliopubic eminence and is fixedly connected with, described 4th fixing head the 3rd folding is fitted with superior ramus of pubis and is fixedly connected with, and described 4th fixing head second folding two ends are fixedly connected with the first folding and the 3rd folding respectively.
The invention has the beneficial effects as follows: the invention provides the oblique locking compoboard in a kind of pelvis medial wall, effective fixing after can ensureing reset, a kind of inside-fixture only need be adopted just can to take into account the many fracture area of possibility, nail can be put safely and reduce operating difficulty, in four limit body region fracture, operation adopt front side approach can fix simultaneously before and after post, and true pelvis need not be entered just can fix pulverizing four limit body and fracture by direct reduction.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the axonometric chart of the ilium plate of the oblique locking compoboard in a kind of pelvis medial wall of the present invention;
Fig. 2 is the axonometric chart of the ischium plate of the oblique locking compoboard in a kind of pelvis medial wall of the present invention;
Fig. 3 is the pelvis medial wall oblique locking compoboard axonometric chart of embodiments of the invention 1;
Fig. 4 is the pelvis medial wall oblique locking compoboard axonometric chart of embodiments of the invention 2.
In figure: 1. ilium plate, 11. ilium plate locating hole, 2. ischium plates, 21. ischium plate locating holes, 3. fixing head, 30. fixing head locating holes, 31. Article 1 fixing heads, 32. second fixing heads, 33. the 3rd fixing heads, 34. the 4th fixing heads, 341. first foldings, 342. second foldings, 343. the 3rd foldings.
Detailed description of the invention
Below in conjunction with specific embodiment, further the present invention is set forth, should be understood that and quote embodiment only for illustration of the present invention, and be not used in and limit the scope of the invention.
Embodiment 1
When pubis place fracture line is through the lateral surface of pubis, as shown in Figure 1 to Figure 3, the oblique locking compoboard in a kind of pelvis medial wall, comprises
Ilium plate 1, one side of ilium plate 1 is surface of bone contact surface, the shape of surface of bone contact surface of ilium plate 1 and the mating shapes of iliopectineal line, ilium plate 1 is provided with three ilium plate locating holes 11, ilium plate locating hole 11 is screwed hole, ilium plate locating hole 11 is between iliopectineal line and iliac fossa, and can realize screw successively through arcuate line and body of ilium, spiral shell is located at body of ischium inside; And
Ischium plate 2, one side of ischium plate 2 is surface of bone contact surface, the shape of surface of bone contact surface of ischium plate 2 and the mating shapes of the body of ischium of hipbone, ischium plate 2 is provided with three ischium plate locating holes 21, and articular cavity and pelvic cavity can be avoided in the position of ischium plate locating hole 21 after ischium plate locating hole 21 loads screw; And
Four fixing heads 3, fixing head 3 is provided with some fixing head locating holes 30 fixed for screw, and a side of fixing head 3 is surface of bone contact surface, and fixing head 3 surface of bone contact surface adapts with the hipbone shape being fixed plate 3,
Article 1, fixing head 31, first fixing head 31 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with crista iliaca trailing edge by screw, and fitting with iliac fossa in the middle part of the first fixing head 31 is fixedly connected with;
Second fixing head 32, second fixing head 32 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with crista iliaca by screw, and fitting with iliac fossa in the middle part of the second fixing head 32 is fixedly connected with;
3rd fixing head the 33, three fixing head 33 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with anterior superior iliac spine top, and fitting with iliac fossa in the middle part of the 3rd fixing head 33 is fixedly connected with; With
4th fixing head the 34, four fixing head 34 one end is fixedly connected with by screw with ilium plate 1, and the other end to be combed with ilium by screw and is fixedly connected with, and fitting with iliopubic eminence in the middle part of the 4th fixing head 34 is fixedly connected with;
Ilium plate 1 is fixedly connected with ischium plate 2 by screw, and fixing head 3 is fixedly connected with ilium plate 1 by screw.
Embodiment 2
When pubis place fracture line is through the medial surface of pubis, as shown in Figure 1, Figure 2 and Figure 4, the oblique locking compoboard in a kind of pelvis medial wall, comprises
Ilium plate 1, one side of ilium plate 1 is surface of bone contact surface, the shape of surface of bone contact surface of ilium plate 1 and the mating shapes of iliopectineal line, ilium plate 1 is provided with three ilium plate locating holes 11, ilium plate locating hole 11 is screwed hole, ilium plate locating hole 11 is between iliopectineal line and iliac fossa, and can realize screw successively through arcuate line and body of ilium, spiral shell is located at body of ischium inside; And
Ischium plate 2, one side of ischium plate 2 is surface of bone contact surface, the shape of surface of bone contact surface of ischium plate 2 and the mating shapes of the body of ischium of hipbone, ischium plate 2 is provided with three ischium plate locating holes 21, and articular cavity and pelvic cavity can be avoided in the position of ischium plate locating hole 21 after ischium plate locating hole 21 loads screw; And
Four fixing heads 3, fixing head 3 is provided with some fixing head locating holes 30 fixed for screw, and a side of fixing head 3 is surface of bone contact surface, and fixing head 3 surface of bone contact surface adapts with the hipbone shape being fixed plate 3,
Article 1, fixing head 31, first fixing head 31 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with crista iliaca trailing edge by screw, and fitting with iliac fossa in the middle part of the first fixing head 31 is fixedly connected with;
Second fixing head 32, second fixing head 32 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with crista iliaca by screw, and fitting with iliac fossa in the middle part of the second fixing head 32 is fixedly connected with;
3rd fixing head the 33, three fixing head 33 one end is fixedly connected with by screw with ilium plate 1, and the other end is fixedly connected with anterior superior iliac spine top, and fitting with iliac fossa in the middle part of the 3rd fixing head 33 is fixedly connected with; With
4th fixing head 34,4th fixing head 34 is three folding shapes, 4th fixing head 34 first folding 341 one end is fixedly connected with ilium plate 1, first folding 341 is fitted with iliopubic eminence and is fixedly connected with, 4th fixing head 34 the 3rd folding 343 is fitted with superior ramus of pubis and is fixedly connected with, and the 4th fixing head 34 second folding 342 two ends are fixedly connected with the first folding 341 and the 3rd folding 343 respectively;
Ilium plate 1 is fixedly connected with ischium plate 2 by screw, and fixing head 3 is fixedly connected with ilium plate 1 by screw.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content in description, must determine its technical scope according to right.