CN210541942U - High-conformability bionic fixedly-connected tibia replacement part at lower end of tibia - Google Patents
High-conformability bionic fixedly-connected tibia replacement part at lower end of tibia Download PDFInfo
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- CN210541942U CN210541942U CN201920638349.6U CN201920638349U CN210541942U CN 210541942 U CN210541942 U CN 210541942U CN 201920638349 U CN201920638349 U CN 201920638349U CN 210541942 U CN210541942 U CN 210541942U
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Abstract
The utility model discloses a bionical resistant rigid coupling shin bone replacement of high conformability shin bone lower extreme, shin bone replacement (1) outer surface be shin bone articular surface (2), shin bone articular surface (2) be according to the arcwall face of human biomechanics design, the inboard shin bone faying face (3) that combine together with the shin bone osteotomy face of replacement (1), replacement (1) on still be provided with preceding pterygoid lamina (4). The utility model discloses based on human biomechanics principle for the whole of shin bone replacement and shin bone articular surface more accord with original bone structural feature, guarantee simultaneously that the shin bone replacement combines more firmly with disconnected incomplete bone, and initial stability is better, the bone growth of being more convenient for, the long-term stability and the firm of keeping part rigid coupling reduce the misery of receiving the art person. The utility model discloses simple structure, it is easy and simple to handle, low cost more does benefit to clinical using widely, and patient's postoperative function resumes well, and the period of safe probation greatly prolongs.
Description
Technical Field
The utility model belongs to the technical field of orthopedics apparatus, concretely relates to bionic rigid coupling shin bone replacement part of high conformal shin bone lower extreme of structure, easy and simple to handle.
Background
People are difficult to avoid accidental injury in the daily production and life process. For example, foot sprains, or fractures of the tibia and talus caused by foot sprains are common. Simple fracture is better treated and reduction and fixation are only needed. However, if the end face of the bone joint is damaged due to fracture of the joint region, it is difficult to achieve the defect by conventional means or instruments. The defects of the lower end surface of the tibia and the talar joint are repaired by using the replaceable prosthesis in the prior art, so that the initial stability is poor, the long-term bone growth is also poor, and the long-term stability is also poor. In particular, in the case of the joint replacement, the aforementioned drawbacks are more pronounced when replacing the artificial joint with the tibial end prosthesis according to the prior art. The reason for this is that the above-mentioned adverse effects occur due to poor conformity of the tibial articular surface of the prosthesis and an unreasonable connection structure of the tibial junction surface. The utility model discloses the people is for not enough to prior art, develops simple structure, and is easy and simple to handle, more accords with human biomechanics structure, and the nature of conformability is good and shin bone replacement spare of resistant rigid coupling replaces prior art's false body, is the best way of overcoming prior art defect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, easy and simple to handle, the bionical resistant rigid coupling shin bone replacement piece of low cost's high conformal shin bone lower extreme.
The utility model aims at realizing like this, shin bone replacement surface be the shin bone articular surface, shin bone articular surface according to the arcwall face of human biomechanics design, the inboard shin bone faying surface that combines together with the shin bone osteotomy face of replacement, the replacement on still be provided with preceding pterygoid lamina.
The utility model discloses human biomechanics principle, the shin bone lower extreme shin bone replacement of development is better with the adaptability of joint, combines more firmly with the broken bone face. The utility model discloses simple structure, it is easy and simple to handle, low cost more does benefit to clinical using widely, and patient's postoperative function resumes well, and the period of safe probation greatly prolongs.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
reference numbers in the figures: 1~ shin bone replacement, 2~ shin bone articular surface, 3~ shin bone faying surfaces, 4~ preceding pterygoid lamina, 5~ joint flange, 6~ apex angle main stick, 7~ base angle subsidiary stick, 8~ set screw hole.
Detailed Description
The following description of the present invention is provided with reference to the accompanying drawings, which are not intended to limit the present invention in any way, and any alterations or replacements made based on the teachings of the present invention are all within the protection scope of the present invention.
As shown in fig. 1-4, the utility model relates to a high conformability shin bone lower extreme bionical resistant rigid coupling shin bone replacement, shin bone replacement 1 the surface of outside be shin bone articular surface 2, shin bone articular surface 2 be according to the arcwall face of human biomechanics design, the inboard shin bone faying surface 3 that combines together with shin bone osteotomy face that is of replacement 1, replacement 1 on still be provided with preceding pterygoid lamina 4.
The tibia articular surface 2 is a convex spherical cambered surface.
The hyperbolic spherical cambered surface of the tibial articular surface 2 has a curvature radius of 20-70 cm; the lateral side of the tibia articular surface 2 is provided with an articular flange 5.
Oblique fixed rods arranged in a shape like a Chinese character 'pin' are arranged on the tibia joint surface 3, the three rods are distributed in an equilateral triangle or an isosceles triangle, the oblique fixed rods incline downwards by 30-60 degrees relative to the tibia joint surface, and the diameter of the main rod at the apex angle is 3-10 mm; the diameter of the auxiliary bottom corner rod 7 is 2-8 mm, and the length of the fixing rod is 10-30 mm.
The front wing plate 4 of the tibia replacement part 1 is of an asymmetric hyperbolic peak structure, and is different from structures of left and right feet of a human body, wherein the height of an outer peak is 10-25 mm, and the height of an inner peak is 0-8 mm lower than that of the outer peak; each peak plate is provided with a fixing screw hole 8.
The transverse section of the basal plate surface of the tibia replacement part 1 is trapezoidal, namely the width of the front part of the component is 25-35 mm, the width of the back part of the component is 20-30 mm, and the height of the trapezoid is 35-45 mm.
The height of the lateral peak of the front wing plate 4 of the tibia replacement part 1 is 13-20 mm, and the height of the medial peak is 3-5 mm lower than that of the lateral peak; each peak plate is provided with a fixing screw hole 8.
The cross section of the substrate surface of the replacement part 1 is trapezoidal, namely the width of the front part of the component is 28-33 mm, the width of the rear part of the component is 23-28 mm, and the height of the trapezoid is 38-42 mm.
The tibia replacement part 1 is of a trapezoidal structure, the end close to a front wing plate is wider than the end far from the front wing plate, and the inclination of the trapezoid is 0-10 degrees; the surface of the tibia combining surface 3 is provided with a convex-concave bone fixing and combining structure.
The front wing plate 4 is in a thin wedge-shaped structure, namely, the front wing plate becomes thinner gradually from the body to the outer edge, and a fixing screw hole 8 is arranged on the front wing plate.
The tibia joint surface, the tibia joint surface and the fixing rod of the replacement part 1 are provided with micropores, and pure titanium coatings are uniformly distributed.
The utility model discloses theory of operation and working process:
the utility model discloses based on human biomechanics principle for the whole of shin bone replacement and shin bone articular surface more accord with original bone structural feature, guarantee simultaneously that the shin bone replacement combines more firmly with disconnected incomplete bone, and initial stability is better, the bone growth of being more convenient for, the long-term stability and the firm of keeping part rigid coupling reduce the misery of receiving the art person.
To the defective patient of shin bone lower extreme fracture, use the utility model discloses during the shin bone replacement, at first the selection joins in marriage suitable model, especially join in marriage the type to left and right feet. Correcting the wound surface, repeatedly correcting and adapting to ensure that the wound surface is obliquely inserted into the fixing hole from the tibial articular surface after being tightly attached to the tibial junction surface of the tibial replacement part, and the fixing rod is screwed to be firmly fixed; then the fixing rods on the front wing plates are respectively screwed to complete the repair and fixation of the lower end defect of the tibia.
Claims (10)
1. A bionic fixedly-connected resistant tibia replacement part at the lower end of a high-conformability tibia is characterized in that the outer surface of the tibia replacement part (1) is a tibia joint surface (2), the tibia joint surface (2) is an arc-shaped surface designed according to human biomechanics, the inner side of the replacement part (1) is a tibia joint surface (3) combined with a tibia osteotomy surface, and an anterior wing plate (4) is further arranged on the replacement part (1).
2. The high-conformability tibia lower-end bionic rigid joint tibial replacement part according to claim 1, wherein the tibia articular surface (2) is a convex spherical cambered surface.
3. The high-conformability tibia lower-end bionic rigid joint tibial replacement part according to claim 1 or 2, wherein the hyperbolic spherical cambered surface of the tibia articular surface (2) has a curvature radius of 20-70 cm; the lateral side of the tibia articular surface (2) is provided with a joint blocking edge (5).
4. The high-conformability tibia lower end bionic fixedly-connected-resistant tibia replacement part as claimed in claim 1 or 2, wherein the tibia joint surface (3) is provided with diagonal fixing rods arranged in a delta shape, the three rods are distributed in an equilateral triangle or an isosceles triangle, the diagonal fixing rods are inclined downwards by 30-60 degrees relative to the tibia joint surface, and the diameter of the main vertex-angle rod (6) is 3-10 mm; the diameter of the bottom corner auxiliary rod (7) is 2-8 mm; the length of the fixing rod is 10-30 mm.
5. The high-conformability tibia lower end bionic and fixedly-connected-resistant tibia replacement part according to claim 1, wherein an anterior wing plate (4) of the tibia replacement part (1) is of an asymmetric hyperbolic peak structure, and is different from left and right foot structures of a human body in that a lateral peak is 10-25 mm high and a medial peak is 0-8 mm lower than the lateral peak; each peak plate is provided with a fixing screw hole (8).
6. The high-conformability tibia lower end bionic fixedly-connected resistant tibia replacement part according to claim 1 or 5, characterized in that the cross section of the basal plate surface of the tibia replacement part (1) is trapezoidal, namely the width of the front part of the component is 25-35 mm, the width of the back part of the component is 20-30 mm, and the height of the trapezoid is 35-45 mm.
7. The high-conformability tibia lower end bionic fixedly-connection-resistant tibia replacement part according to claim 1 or 5, characterized in that the height of the lateral peak of an anterior wing plate (4) of the tibia replacement part (1) is 13-20 mm, and the height of the medial peak is 3-5 mm lower than that of the lateral peak; each peak plate is provided with a fixing screw hole (8).
8. The high-conformability tibia lower end bionic fixedly-connection-resistant tibia replacement part according to claim 1 or 5, characterized in that the cross section of the basal plate surface of the tibia replacement part (1) is trapezoidal, namely the width of the front part of the component is 28-33 mm, the width of the rear part of the component is 23-28 mm, and the height of the trapezoid is 38-42 mm.
9. The high-conformability tibia lower end bionic fixedly-connected-resistant tibia replacement part according to claim 1 or 5, wherein the tibia replacement part (1) is of a trapezoidal structure, the proximal anterior wing plate end is wider than the distal anterior wing plate end, and the inclination of the trapezoid is 0-10 degrees; the surface of the tibia joint surface (3) is provided with a convex-concave bone fixing and combining structure.
10. The high-conformability tibia lower end bionic rigid connection resistant tibia replacement piece according to claim 1 or 5, wherein the front wing plate (4) is of a thin wedge-shaped structure, namely, the front wing plate becomes thinner gradually from the body to the outer edge, and a fixing screw hole (8) is arranged on the front wing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638349.6U CN210541942U (en) | 2019-04-26 | 2019-04-26 | High-conformability bionic fixedly-connected tibia replacement part at lower end of tibia |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920638349.6U CN210541942U (en) | 2019-04-26 | 2019-04-26 | High-conformability bionic fixedly-connected tibia replacement part at lower end of tibia |
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| CN210541942U true CN210541942U (en) | 2020-05-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013365A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical resistance to affixed shin bone refill-unit in high temporal shin bone lower end |
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2019
- 2019-04-26 CN CN201920638349.6U patent/CN210541942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013365A (en) * | 2019-04-26 | 2019-07-16 | 中国人民解放军联勤保障部队第九二〇医院 | A kind of bionical resistance to affixed shin bone refill-unit in high temporal shin bone lower end |
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