CN213722343U - Proximal femur fixing plate - Google Patents
Proximal femur fixing plate Download PDFInfo
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- CN213722343U CN213722343U CN202021523086.3U CN202021523086U CN213722343U CN 213722343 U CN213722343 U CN 213722343U CN 202021523086 U CN202021523086 U CN 202021523086U CN 213722343 U CN213722343 U CN 213722343U
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- locking
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- femur
- tube
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Abstract
The utility model provides a thighbone near-end fixed plate belongs to the medical instrument field. A proximal femur fixing plate comprises a plate body and a mounting tube. The plate body has a locking end. The installation pipe is arranged on the inner side of the locking end and is provided with a locking threaded hole, and the locking threaded hole is used for installing a locking screw for fixing the femoral head. The plate body is provided with an embedding hole communicated with the mounting pipe, and the embedding hole is used for embedding a locking nail into the mounting pipe and mounting the locking nail in the locking threaded hole. The inner side of the locking end of the thighbone near-end fixing plate of the utility model is provided with the installation tube, and the locking screw hole on the installation tube is provided with the locking screw; after the plate body is fixed with the femur, the mounting tube can be inserted into the femur, so that the shorter locking screw can be used for locking the femoral head, the angle of the locking screw is more stable, and the treatment effect is ensured.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, more specifically say, relate to a thighbone near-end fixed plate.
Background
The proximal femur fixing plate is an implant used for femoral neck fracture operation. When the femur neck fixing device is used, the femur near-end fixing plate is attached and fixed on the outer side of the femur near-end, then the locking screw is installed, the locking screw penetrates through the femur neck and is inserted into the femur head, and therefore the femur head is fixed.
In the conventional proximal femur fixing plate, a locking screw is installed by providing a locking threaded hole, so that the angle of the locking screw is fixed. However, since the locking screw is long and the thread of the locking threaded hole is shallow, it is impossible to provide sufficient support for the locking screw, and when the locking screw is stressed by a large force, the angle of the locking screw is easily changed, which affects the therapeutic effect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thighbone near-end fixed plate to solve and exist among the prior art, thighbone near-end fixed plate installs locking screw through the locking screw hole, and locking screw angle takes place the technical problem who changes easily.
In order to achieve the above object, the utility model adopts the technical scheme that a thighbone near-end fixing plate is provided, include:
a plate body having a locking end; and
the installation tube is arranged on the inner side of the locking end and is provided with a locking threaded hole, and the locking threaded hole is used for installing a locking screw for fixing the femoral head;
the plate body is provided with an embedding hole communicated with the mounting pipe, and the embedding hole is used for embedding a locking nail into the mounting pipe and mounting the locking nail in the locking threaded hole.
As another embodiment of this application, the installation pipe with the contained angle of locking end makes, after the plate body is fixed with the thighbone, the installation pipe orientation the femoral neck of thighbone.
As another embodiment of the present application, the length of the mounting tube is configured such that after the plate body is fixed to the femur, the mounting tube extends into the femoral neck of the femur.
As another embodiment of the present application, the number of the locking threaded holes is one or more, and at least one of the locking threaded holes is provided on an end surface of the mounting tube away from the locking end.
As another embodiment of the present application, the number of the locking screw holes is one or more, and at least one of the locking screw holes is provided on the side wall of the mounting pipe.
As another embodiment of the present application, the locking threaded hole on the side wall of the mounting tube and one end of the mounting tube far away from the locking end form an acute angle.
As another embodiment of the present application, the number of the locking screw holes is plural, and the plural locking screw holes are distributed in the circumferential direction of the mounting pipe.
As another embodiment of the present application, the number of the locking screw holes is plural, and the plural locking screw holes are distributed in the axial direction of the mounting tube.
As another embodiment of the present application, the inner diameter of the installation tube is tapered in a direction away from the locking end.
As another embodiment of the present application, the outer diameter of the mounting tube is tapered in a direction away from the locking end.
The embodiment of the utility model provides a thighbone near-end fixed plate's beneficial effect lies in: compared with the prior art, the fixing plate for the proximal femur end of the embodiment of the utility model has the advantages that the inner side of the locking end is provided with the installation tube, and the locking screw hole on the installation tube is provided with the locking screw; after the plate body is fixed with the femur, the mounting tube can be inserted into the femur, so that the shorter locking screw can be used for locking the femoral head, the angle of the locking screw is more stable, and the treatment effect is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a front view of a proximal femur fixing plate according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a view showing a state of use of the proximal femur fixing plate of fig. 1.
Wherein, in the figures, the respective reference numerals:
1-a plate body; 11-a locking end; 12-a fixed end; 13-placing in the hole; 14-a locking hole; 2-installing a pipe; 21-locking threaded holes; 3-locking screws; 4-femoral neck; 5-femoral head.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3 together, a proximal femur fixing plate according to an embodiment of the present invention will now be described. A proximal femur fixing plate comprises a plate body 1 and a mounting tube 2.
The plate body 1 has a locking end 11. The mounting tube 2 is arranged on the inner side of the locking end 11 and is provided with a locking threaded hole 21, and the locking threaded hole 21 is used for mounting a locking screw 3 for fixing the femoral head 5. The plate body 1 is provided with an insertion hole 13 communicating with the mounting tube 2, and the insertion hole 13 is used for inserting a locking nail into the mounting tube 2 and mounting in the locking screw hole 21.
Compared with the prior art, the proximal femur fixing plate of the embodiment of the utility model has the advantages that the inner side of the locking end 11 is provided with the installation tube 2, and the locking screw hole 21 on the installation tube 2 is provided with the locking screw 3; after the plate body 1 is fixed with the femur, the mounting tube 2 can be inserted into the femur, so that the shorter locking screw 3 can be used for locking the femoral head 5, the angle of the locking screw 3 is more stable, and the treatment effect is ensured.
In this embodiment, the plate body 1 is adapted to be fixed to the outer side of the proximal end of the femur with the locking end 11 being located close to the greater trochanter of the femur. The lateral surface of the plate body 1 facing to the proximal end of the femur is the inner side, and the lateral surface back to the proximal end of the femur is the outer side. The insertion hole 13 is provided in the locking end 11, and the mounting pipe 2 is provided inside the locking end 11 and communicates with the locking screw hole 21. When the plate body 1 is attached and fixed on the outer side of the proximal femur, the mounting tube 2 is inserted into the proximal femur. In use, the proximal femur may be pre-perforated to allow insertion of the mounting tube 2 into the proximal femur.
In a specific implementation, the plate body 1 may be constructed by using an existing proximal femur fixing plate. Illustratively, the plate body 1 may be a strip shape extending along the axial direction of the femoral shaft, one end of the plate body 1 attached to the outer side of the greater trochanter of the femur is a locking end 11, and the other end is a fixed end; the fixed end is provided with a plurality of locking holes 14 along the axial direction of the plate body 1 and is used for being fixed with the femoral shaft; the locking end 11 may be provided with one or more locking threaded holes 21 for mounting locking screws 3 for fixing the femoral neck 4 and the femoral head 5; the locking end 11 can be provided with no locking threaded hole 21, and the femoral head 5 can be fixed by mounting the locking screw 3 completely through the locking threaded hole 21 of the mounting tube 2. The insertion hole 13 is communicated with the inner cavity of the mounting tube 2 through the locking end 11, and an operator can insert the locking screw 3 into the mounting tube 2 from the insertion hole 13 and install the locking screw 3 in the locking threaded hole 21 of the mounting tube 2, so that the installed locking screw 3 can be inserted into the femoral head 5 through the femoral neck 4 to fix the femoral head 5.
The number of the mounting tubes 2 may be one and communicate with one insertion hole 13 of the locking end 11; the number of the mounting tubes 2 may be plural and respectively communicate with the plural insertion holes 13 of the locking end 11. The mounting tube 2 may be integrated with the plate body 1. The mounting tube 2 may be a round tube. The length of the mounting tube 2 can be set as required, and can be inserted into the proximal end of the femur shallowly or can be inserted deep into the femoral neck 4. The inner diameter of the mounting tube 2 may be set as required for mounting the locking screw 3, so that the locking screw 3 can be mounted on the locking screw hole 21 of the mounting tube 2.
The mounting tube 2 can be preset with the plate body 1 to form a certain angle, so that the mounting tube 2 is inserted into the proximal end of the femur and faces the femoral head 5, and the locking screw 3 on the mounting tube 2 is conveniently inserted into the femoral head 5. Illustratively, the mounting tube 2 may be configured such that after the plate body 1 is secured to the proximal femur end, the mounting tube 2 is aligned with the femoral neck 4 such that the locking screw 3, which is mounted in the locking threaded hole 21, can be inserted through the femoral neck 4 into the femoral head 5 to secure the femoral head 5.
Referring to fig. 1 and 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the angle between the mounting tube 2 and the locking end 11 is such that, after the plate body 1 is fixed to the femur, the mounting tube 2 faces the femoral neck 4 of the femur.
In this embodiment, after the plate body 1 is fixed to the femur, the mounting tube 2 faces the femoral neck 4 of the femur, so that the locking screw 3 can be more easily inserted into the femoral neck 4 and the femoral head 5 after the locking screw 3 is mounted in the locking threaded hole 21 of the mounting tube 2.
In concrete implementation, the plate body 1 may be a strip shape extending along the axial direction of the femoral shaft, one end of the plate body 1 attached to the outer side of the femoral greater trochanter is a locking end 11, and the other end is a fixed end. The mounting tube 2 is at a predetermined angle to the fixed end of the plate body 1 so that after the plate body 1 is fixed to the femur, the mounting tube 2 is directed toward the femoral neck 4 of the femur so that the mounted locking screw 3 can be inserted into the femoral neck 4. Illustratively, the mounting tube 2 and the locking end 11 may be of an integral structure, and the mounting tube 2 and the fixed end of the plate body 1 form an obtuse angle and the locking end 11 of the plate body 1 form an acute angle.
Referring to fig. 1 and 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the length of the mounting tube 2 is set such that, after the plate body 1 is fixed to the femur, the mounting tube 2 extends into the femoral neck 4 of the femur.
In this embodiment, after the plate body 1 is fixed to the femur, the locking screw 3 inserted through the mounting tube 2 can be inserted into the femoral neck 4 to support the femoral neck 4.
In concrete implementation, the length of the installation tube 2 can be set as required, and after the plate body 1 is fixed with the proximal end of the femur, the installation tube 2 can be inserted into the femoral neck 4 shallowly or can penetrate through the femoral neck 4 to go deep into the femoral head 5 of the femoral neck 4. Illustratively, the mounting pipe 2 is at a predetermined angle to the fixed end of the plate body 1, and the length of the mounting pipe 2 is set long. In use, after the plate body 1 is fixed with the femur, the mounting tube 2 is inserted into the femoral neck 4 of the femur, and the locking screw 3 passes through the mounting tube 2, passes through the femoral neck 4 and penetrates into the femoral head 5.
Referring to fig. 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the number of the locking threaded holes 21 is one or more, and at least one locking threaded hole 21 is disposed on the end surface of the mounting tube 2 away from the locking end 11.
In this embodiment, the locking screw hole 21 is formed in the end surface of the mounting tube 2 away from the locking end 11, so that the locking screw 3 can be mounted more conveniently.
In a particular implementation, the mounting tube 2 is closed at the end remote from the locking end 11, so that one or more locking threaded holes 21 can be provided. Illustratively, the mounting tube 2 is at a predetermined angle with the fixed end of the plate body 1, and in use, after the plate body 1 is fixed with the femur, the mounting tube 2 is inserted into the femoral neck 4 of the femur, and the locking screw 3 is inserted into the femoral head 5 through the locking threaded hole 21 on the end surface of the mounting tube 2 far away from the locking end 11.
Referring to fig. 1 and 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the number of the locking threaded holes 21 is one or more, and at least one locking threaded hole 21 is disposed on the side wall of the mounting tube 2.
In this embodiment, the side wall area of the installation tube 2 is larger, more locking threaded holes 21 can be arranged, and the direction of the locking threaded holes 21 can be flexibly arranged as required to better fix the femoral head 5.
In a particular implementation, the locking threaded holes 21 extend through the side wall of the mounting tube 2. The locking screw hole 21 is angled so that a user can insert the locking screw 3 from the insertion hole 13 into the mounting tube 2 and directly mount it on the locking screw hole 21. Illustratively, the locking threaded bore 21 is angled at about 5 ° from the end of the mounting tube 2 remote from the locking end 11. The locking screw holes 21 may be plural, and the plural locking screw holes 21 may be regularly distributed on the side wall of the mounting tube 2, or irregularly distributed on the side wall of the mounting tube 2.
Referring to fig. 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the locking threaded hole 21 on the side wall of the mounting tube 2 and the end of the mounting tube 2 far away from the locking end 11 form an acute angle.
In this embodiment, the locking screw 3 mounted on the locking threaded hole 21 of the side wall of the mounting tube 2 is allowed to be dispersed in the femoral head 5.
In specific implementation, the locking threaded hole 21 and one end of the mounting tube 2 far away from the locking end 11 form an included angle of about 3 degrees to 10 degrees.
Referring to fig. 1 and 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the number of the locking threaded holes 21 is plural, and the plural locking threaded holes 21 are distributed in the circumferential direction of the mounting tube 2.
In this embodiment, after the locking screws 3 are installed in the locking threaded holes 21 of the installation tube 2, the locking screws 3 are distributed around the installation tube 2 and inserted into the femoral head 5, so as to fix the femoral head 5 better.
In a specific implementation, a plurality of locking threaded holes 21 may be distributed in the circumferential direction of the mounting tube 2, and the positions of the locking threaded holes 21 in the axial direction of the mounting tube 2 are the same; also, a plurality of locking screw holes 21 are distributed in the circumferential direction of the mounting pipe 2, and meanwhile, each locking screw hole 21 has a certain dislocation in the axial direction of the mounting pipe 2, so that the larger locking screw holes 21 are conveniently arranged, and mutual interference in mounting the locking screws 3 in each locking screw hole 21 can be avoided.
Referring to fig. 1 and 3, as a specific embodiment of the proximal femur fixing plate of the present invention, the number of the locking threaded holes 21 is plural, and the plural locking threaded holes 21 are distributed in the axial direction of the mounting tube 2.
In this embodiment, after the locking screw 3 is installed in the locking threaded hole 21 of the installation tube 2, the locking screw 3 is dislocated in the axial direction of the installation tube 2, so that the locking screw 3 is prevented from being too concentrated, and the femoral head 5 can be better fixed.
In a specific implementation, a plurality of locking threaded holes 21 may be disposed on the side wall of the same side of the mounting tube 2, and the plurality of locking threaded holes 21 are distributed along the axial direction of the mounting tube 2; also, a plurality of locking screw holes 21 are distributed in the axial direction of the mounting pipe 2, and a certain dislocation exists in the circumferential direction of the mounting pipe 2, so that larger locking screw holes 21 are conveniently arranged, and mutual interference can be avoided when the locking screws 3 are mounted in the locking screw holes 21.
Referring to fig. 3, as an embodiment of the proximal femur fixing plate of the present invention, the inner diameter of the mounting tube 2 gradually decreases in the direction away from the locking end 11.
In this embodiment, the inner wall of the mounting tube 2 is tapered to facilitate mounting the locking screw 3 on the locking threaded hole 21 on the side wall of the mounting tube 2 through the insertion opening.
In concrete implementation, the inner wall of the installation pipe 2 can be conical or pyramid-shaped, and the large-end opening is communicated with the placing opening, so that the inner wall of the installation pipe 2 is inclined to a certain degree, and the locking threaded hole 21 is conveniently arranged to be aligned with the placing opening.
Referring to fig. 1 and 3, as an embodiment of the proximal femur fixing plate of the present invention, the outer diameter of the mounting tube 2 gradually decreases in the direction away from the locking end 11.
In this embodiment, the end of the mounting tube 2 remote from the locking end 11 is thinner, making it easier to insert into the thinner femoral neck 4.
In a particular implementation, the mounting tube 2 has a constant inner diameter and a decreasing outer diameter in a direction away from the locking end 11. Alternatively, the wall thickness of the mounting tube 2 is constant, and the inner and outer diameters of the mounting tube 2 are simultaneously tapered in a direction away from the locking end 11.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A proximal femoral fixation plate comprising:
a plate body having a locking end; and
the installation tube is arranged on the inner side of the locking end and is provided with a locking threaded hole, and the locking threaded hole is used for installing a locking screw for fixing the femoral head;
the plate body is provided with an embedding hole communicated with the mounting pipe, and the embedding hole is used for embedding a locking nail into the mounting pipe and mounting the locking nail in the locking threaded hole.
2. The proximal femoral fixation plate of claim 1, wherein the mounting tube is angled relative to the locking end such that the mounting tube faces a femoral neck of the femur after the plate is secured to the femur.
3. The proximal femoral fixation plate of claim 1, wherein the mounting tube is of a length such that, after the plate is secured to the femur, the mounting tube extends into a femoral neck of the femur.
4. The proximal femoral fixation plate of any one of claims 1 to 3, wherein the number of the locking threaded holes is one or more, and at least one locking threaded hole is provided on an end surface of the mounting tube away from the locking end.
5. The proximal femoral fixation plate of any one of claims 1 to 3, wherein the number of the locking threaded holes is one or more, and at least one of the locking threaded holes is provided on a side wall of the mounting tube.
6. The proximal femoral fixation plate of claim 5, wherein the threaded locking hole in the side wall of the mounting tube is at an acute angle to an end of the mounting tube distal from the locking end.
7. The proximal femoral fixation plate of claim 5, wherein the number of locking threaded holes is a plurality, and the plurality of locking threaded holes are distributed in the circumferential direction of the mounting tube.
8. The proximal femoral fixation plate of claim 5, wherein the number of the locking threaded holes is plural, and the plural locking threaded holes are distributed in an axial direction of the mounting tube.
9. A proximal femoral fixation plate as in any of claims 1 to 3, wherein the mounting tube has a tapered inner diameter in a direction away from the locking end.
10. A proximal femoral fixation plate as in any of claims 1 to 3, wherein the mounting tube has a tapered outer diameter in a direction away from the locking end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523086.3U CN213722343U (en) | 2020-07-28 | 2020-07-28 | Proximal femur fixing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523086.3U CN213722343U (en) | 2020-07-28 | 2020-07-28 | Proximal femur fixing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213722343U true CN213722343U (en) | 2021-07-20 |
Family
ID=76839032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021523086.3U Active CN213722343U (en) | 2020-07-28 | 2020-07-28 | Proximal femur fixing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213722343U (en) |
-
2020
- 2020-07-28 CN CN202021523086.3U patent/CN213722343U/en active Active
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