CN220404099U - Bone folded plate around knee joint prosthesis - Google Patents
Bone folded plate around knee joint prosthesis Download PDFInfo
- Publication number
- CN220404099U CN220404099U CN202320636630.2U CN202320636630U CN220404099U CN 220404099 U CN220404099 U CN 220404099U CN 202320636630 U CN202320636630 U CN 202320636630U CN 220404099 U CN220404099 U CN 220404099U
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- section
- holes
- bending
- cable
- femur
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 39
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 47
- 210000000689 upper leg Anatomy 0.000 claims abstract description 20
- 230000007704 transition Effects 0.000 claims abstract description 4
- 210000003127 knee Anatomy 0.000 claims description 10
- 208000010392 Bone Fractures Diseases 0.000 abstract description 17
- 206010017076 Fracture Diseases 0.000 abstract description 17
- 230000035876 healing Effects 0.000 abstract description 5
- 230000001054 cortical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000006820 Arthralgia Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 208000024765 knee pain Diseases 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001694 thigh bone Anatomy 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a knee joint prosthesis surrounding bone folded plate, which comprises a bending section and a straight section, wherein the bending section is connected with the straight section and has deflection matched with the shape of femur, and a plurality of positioning holes are formed in the surface of the bending section; the flat section and the bending section are in arc transition, a plurality of locking combination holes are formed in the surface of the flat section, and a plurality of cable holes for a cable to pass through are formed in the side face of the flat section. According to the utility model, the cable hole is added on the straight section of the far-end bone folded plate of the femur, when fracture around the knee joint prosthesis occurs, the femur and the periphery of the prosthesis can be fixed through the cable, so that the replacement of the prosthesis is avoided, the operation difficulty is reduced, the operation time is shortened, the bone of a patient is protected, and the fracture healing can be accelerated.
Description
Technical Field
The utility model belongs to the technical field of medical appliances, and particularly relates to a surrounding bone folded plate of a knee joint prosthesis.
Background
Bone plates are commonly used devices for connecting fractured bones of a patient in bone surgery, and are mainly used for connecting fractured bones of the patient, so that the fractured bones are provided with favorable morphological support, and the fractured bones heal early. At present, after partial patients are subjected to knee joint prosthesis replacement, secondary fracture around the prosthesis is caused due to shielding of other external forces or stress. If the patient had an initial knee prosthesis replacement followed by a secondary fracture, it would be very difficult to handle. Because of the limitations of the prosthesis, if another prosthesis is required, a reaming is also required. The prosthesis needs to be replaced again when the marrow is expanded, so that the operation difficulty is greatly increased, more bone is removed when the marrow is expanded, the pain of a patient is aggravated, and the healing of fracture of the patient is not facilitated.
Disclosure of Invention
The object of the present utility model is to provide a peri-knee flap for a knee prosthesis which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the knee joint prosthesis surrounding bone folded plate comprises a bending section and a straight section, wherein the bending section is connected with the straight section, the bending section is provided with deflection matched with the femur shape, and a plurality of positioning holes are formed in the surface of the bending section; the flat section and the bending section are in arc transition, a plurality of locking combination holes are formed in the surface of the flat section, and a plurality of cable holes for cables to pass through are formed in the side face of the flat section.
As an optional implementation manner of the above technical scheme, the bending section comprises a first bending part and a second bending part, the first bending part, the second bending part and the flat section are sequentially connected, the first bending part is provided with an intrados matched with the outer surface of the distal end of the femur, and the second bending part is provided with an extrados matched with the outer surface of the femur.
As an optional implementation manner of the above technical solution, the positioning hole includes a plurality of threaded holes and no threaded holes.
As an alternative implementation manner of the above technical solution, the bending section is provided with seven threaded holes and three unthreaded holes.
As an optional implementation manner of the above technical solution, the bending section is provided with a plurality of k-pinholes.
As an alternative embodiment of the above technical solution, the locking engagement holes and the cable holes of the straight sections are alternately arranged.
As an optional implementation manner of the above technical scheme, four locking and combining holes are formed in the surface of the straight section, and the four locking and combining holes are arranged at equal intervals.
As an optional implementation manner of the above technical solution, the tail part of the straight section is of a gradually thinned structure, and the tail end surface is smooth.
The beneficial effects of the utility model are as follows:
the utility model provides a bone folded plate around a knee joint prosthesis, wherein a cable hole is added on a straight section of a bone folded plate at the far end of a femur, when fracture around the knee joint prosthesis occurs, the femur and the periphery of the prosthesis can be fixed through a cable, so that the replacement of the prosthesis is avoided, the operation difficulty is reduced, the operation time is shortened, the bone of a patient is protected, and the fracture healing can be accelerated.
Drawings
FIG. 1 is a schematic perspective view of a bone flap according to one embodiment of the present utility model;
fig. 2 is a schematic front view of a bone flap in accordance with one embodiment of the utility model.
In the figure: 1-bending sections; 2-straight sections; 3-locking the coupling hole; 4-a cable hole; 5-a threaded hole; 6-no threaded hole; 7-Ke shi pin hole; 8-tail.
Detailed Description
Examples
As shown in fig. 1 and 2, the present embodiment provides a bone flap around a knee prosthesis, which includes a bending section 1 and a straight section 2, the bending section 1 is connected with the straight section 2, the bending section 1 has flexibility adapted to the femur profile, foreign body sensation after operation of a patient is reduced, and knee pain is not generated due to shape problems of the bone flap. The surface of the bending section 1 is provided with a plurality of positioning holes so as to fix the fracture plate.
Through the circular arc transition between straight section 2 and the section of buckling 1, a plurality of locking combination holes 3 have been seted up on straight section 2 surface, and a plurality of cable holes 4 that supply the cable to pass have been seted up to straight section 2's side, and the cable can fix around thighbone and the prosthesis, promotes the patient and resumes. The number of the cable holes 4 can be set according to practical requirements, so that effective fixation of the femur and the periphery of the prosthesis is ensured.
The utility model relates to a bone folded plate around a knee joint prosthesis, which can be used for reducing fracture when fracture around the knee joint prosthesis occurs, thereby avoiding replacing the prosthesis to expand marrow. Because the cable hole 4 is added on the straight section 2 of the far-end bone folded plate of the femur, when fracture around the knee joint prosthesis occurs, the femur and the periphery of the prosthesis can be fixed through the cable, and the cable can be matched with the cortical bone plate for use, so that the cable can effectively fix the cortical bone plate, and has good promoting effect on fracture healing.
The utility model uses the fracture plate to fix the fracture around the knee joint prosthesis, avoids the replacement of the prosthesis again, reduces the operation difficulty, shortens the operation time, protects the bone of the patient and can accelerate the fracture healing.
In this embodiment, the bending section 1 includes a first bending portion and a second bending portion, where the first bending portion, the second bending portion, and the flat section 2 are sequentially connected, the first bending portion is provided with an intrados surface matched with the outer surface of the distal end of the femur, and the second bending portion is provided with an extrados surface matched with the outer surface of the femur. The design structure of the inner cambered surface and the outer cambered surface can increase the fitting degree between the bone folded plate and the periphery of the femur and the prosthesis and improve the fixing effect of the periphery of the femur and the prosthesis.
Wherein, the locating hole includes a plurality of screw holes 5 and no screw hole 6. As an alternative embodiment, the bending section 1 is provided with seven threaded holes 5 and three unthreaded holes 6. The bending section 1 is provided with a plurality of Kirschner wire holes 7, and the Kirschner wire holes 7 are used for prepositioning the bone folding plate, so that the smooth completion of the operation is facilitated.
In this embodiment, four locking and combining holes 3 are formed in the surface of the straight section 2, and the four locking and combining holes 3 are arranged at equal intervals, and the locking and combining holes 3 are used for compressing and fixing fracture ends in operation, so that the fixing effect is improved. The locking combination holes 3 and the cable holes 4 of the straight section 2 are alternately arranged, and the locking combination holes 3 and the cable holes 4 are not mutually influenced. The tail 8 of the straight section 2 is of a gradually-thinned structure, and the tail surface is smooth, so that the bone folded plate can be better inserted during operation.
The locking combination holes 3 and the positioning holes are respectively provided with locking screws, when in operation, a plurality of locking screws can be selected for locking or fixing according to the actual fracture condition of a patient and the bone condition of the patient, and the locking screws are fixed by cables, so that the locking combination holes can be matched with a cortical bone plate for use, the fixing effect on the femur and the periphery of the prosthesis can be further improved, and the recovery of the patient is promoted.
In the description of the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed; may be a mechanical or electrical connection; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with the inside of two elements or in interaction with the two elements, the specific meaning of the terms being understood by those skilled in the art. Furthermore, the particular features, structures, etc. described in the examples are included in at least one embodiment and those of skill in the art may combine features of different embodiments without contradiction. The scope of the present utility model is not limited to the above-described specific embodiments, and embodiments which can be suggested to those skilled in the art without inventive effort according to the basic technical concept of the present utility model are all within the scope of the present utility model.
Claims (8)
1. The knee joint prosthesis surrounding bone folded plate is characterized by comprising a bending section (1) and a straight section (2), wherein the bending section (1) is connected with the straight section (2), the bending section (1) has deflection matched with the femur shape, and a plurality of positioning holes are formed in the surface of the bending section (1); the cable bending device is characterized in that the straight section (2) and the bending section (1) are in arc transition, a plurality of locking combination holes (3) are formed in the surface of the straight section (2), and a plurality of cable holes (4) for cables to pass through are formed in the side face of the straight section (2).
2. The knee prosthesis surrounding bone flap according to claim 1, characterized in that the bending section (1) comprises a first bending part and a second bending part, the first bending part, the second bending part and the flat section (2) are connected in sequence, the first bending part is provided with an intrados matched with the outer surface of the distal femur, and the second bending part is provided with an extrados matched with the outer surface of the femur.
3. A knee prosthesis surrounding bone flap according to claim 1, characterized in that the positioning holes comprise threaded holes (5) and unthreaded holes (6).
4. A knee prosthesis surrounding bone flap according to claim 3, characterized in that the bending section (1) is provided with seven threaded holes (5) and three unthreaded holes (6).
5. A knee prosthesis surrounding bone flap according to claim 1, characterized in that the bending section (1) is provided with several k-wire holes (7).
6. A knee prosthesis surrounding bone flap according to claim 1, characterized in that the locking engagement holes (3) and cable holes (4) of the straight sections (2) are arranged alternately.
7. The knee prosthesis surrounding bone flap according to claim 1, characterized in that the surface of the straight section (2) is provided with four locking engagement holes (3), and the four locking engagement holes (3) are arranged at equal intervals.
8. A knee prosthesis surrounding bone flap according to claim 1, characterized in that the tail (8) of the straight section (2) is of tapering configuration and the tail surface is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320636630.2U CN220404099U (en) | 2023-03-27 | 2023-03-27 | Bone folded plate around knee joint prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320636630.2U CN220404099U (en) | 2023-03-27 | 2023-03-27 | Bone folded plate around knee joint prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220404099U true CN220404099U (en) | 2024-01-30 |
Family
ID=89657796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320636630.2U Active CN220404099U (en) | 2023-03-27 | 2023-03-27 | Bone folded plate around knee joint prosthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220404099U (en) |
-
2023
- 2023-03-27 CN CN202320636630.2U patent/CN220404099U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |