CN212118267U - Patella tension band fixer - Google Patents
Patella tension band fixer Download PDFInfo
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- CN212118267U CN212118267U CN201922405033.5U CN201922405033U CN212118267U CN 212118267 U CN212118267 U CN 212118267U CN 201922405033 U CN201922405033 U CN 201922405033U CN 212118267 U CN212118267 U CN 212118267U
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- tension band
- fixing hole
- patella
- fixed orifices
- pressurizing
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Abstract
The utility model belongs to the technical field of internal fixation medical instruments for orthopedics department, in particular to a patella tension band fixator which comprises a first fixing hole, a pressurizing tension band and a second fixing hole, wherein the pressurizing tension band is positioned between the first fixing hole and the second fixing hole, and the first fixing hole, the pressurizing tension band and the second fixing hole are of an integral structure; the utility model discloses constitute by fixed orifices one, pressurization tension band and fixed orifices two, pressurization tension band is thinner moreover, nevertheless adopts great fillet transition between two fixed orificess and the pressurization tension band, and material intensity is high moreover, difficult fracture, simple structure, and is fixed reliable, small, light in weight.
Description
Technical Field
The utility model belongs to the technical field of orthopedics internal fixation medical instrument, concretely relates to patella tension band fixer.
Background
The patella is the largest seed bone of the human body and is located in the quadriceps femoris tendon in front of the knee joint. The cross section is similar to an inverted triangle, the upper part is wide and the lower part is narrow, the front of the patella is slightly spherical, the patella protrudes forwards, the joint surface is smooth, and the patella is jointed with the femur to participate in forming the knee joint. The traction force of the quadriceps femoris muscle in all directions is concentrated, and the knee joint is stopped at the tibial tubercle through the patellar ligament, so that the knee stretching action of the quadriceps femoris muscle is effectively completed. Patellar fracture is a common fracture type in clinic, the incidence rate of patellar fracture is high, and the patellar fracture mainly has obvious influence on knee extension movement after fracture due to direct violence, indirect violence and mixed violence.
The clinical treatment is frequently performed by: (1) the steel wire is used for cerclage the patella and gathering the fracture block to the center by utilizing the multi-directional cohesion generated by the steel wire and the titanium cable to perform internal fixation or patella claws, so that the fracture block is reset and fixed. The method is simple and easy to implement, but long-time plaster fixation is needed after the operation, complications such as joint adhesion, stiffness and the like are often caused, in addition, premature flexion and extension activity exercise is easy to cause separation and displacement in front of a fracture block, the fracture is unstable, and the later-period traumatic arthritis is caused. (2) The method for fixing the tension band comprises the steps of fixing the Kirschner wire in the tension band, fixing the steel wire by a steel wire ring-binding and 8-shaped steel wire tension band and fixing the screw steel wire tension band. The method has the advantages that the unequal distances between the two fixing kirschner wires deviated from the center of the patella easily cause the non-ideal stability of the steel wire to cause the failure of internal fixation, and in addition, the looseness of the kirschner wires stimulates skin soft tissues to cause local skin bursitis, skin infection caused by skin puncture and the like. (3) The memory alloy tension band fixes the coil. The method also uses a kirschner wire for fixing, and has the defects that two tension belts are needed for fixing the coil, the cost is high, and a plurality of small round corners are used for fixing stably, so that the risk of easy breakage is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art, and provides a patellar fracture tension band fixer with an integral structure.
In order to satisfy the above-mentioned purpose, the utility model discloses the technical scheme who takes does:
a patella tension belt fixator comprises a first fixing hole, a pressurizing tension belt and a second fixing hole, wherein the pressurizing tension belt is located between the first fixing hole and the second fixing hole, the first fixing hole, the pressurizing tension belt and the second fixing hole are of an integral structure, the first fixing hole and the second fixing hole are of a circular structure, the pressurizing tension belt is of a waist-shaped hole structure, the first fixing hole and the pressurizing tension belt keep the same curvature with a patella, and the second fixing hole is in contact with the side face of the bottom of the patella.
Preferably, the first fixing hole, the pressure tension band and the second fixing hole are made of titanium-nickel memory alloy plates.
The utility model has the advantages that:
(1) the utility model consists of two fixing holes and a pressurizing tension band, which are made of thin plates made of materials, and the fixing holes and the pressurizing tension band are narrow, but are transited by adopting larger fillets, and the material has high strength, is not easy to break, has simple structure, reliable fixation, small volume and light weight;
(2) the two fixing holes and the pressurizing tension band adopt an integral design, so that the stability is high, the width of the pressurizing tension band is larger, the fitting width with the patella is higher, the patella cannot rotate or loosen even if the patella is fixed by using one Kirschner wire, and a plurality of irregular fractures can be treated;
(3) the device is fixed on the patella by a doctor only by using one or more kirschner wires, so that the doctor is simple to operate, the operation time is short, the treatment time of a patient is short, and the healing effect is good;
(4) the utility model discloses use and have high strength, excellent shape memory effect, corrosion-resistant, the similar titanium nickel memory alloy material of elastic modulus and human skeleton to make, can bend and stretch the activity in advance and resume the exercise.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a state diagram of use of embodiment 1;
FIG. 4 is a state diagram of the use of embodiment 2.
In the figure: 1. the first fixing hole, 2, the pressure tension belt and 3, the second fixing hole.
Detailed Description
The invention will be further described with reference to the accompanying drawings and working principles:
the patella tension band fixator shown in fig. 1 and 2 comprises a first fixing hole 1, a pressurizing tension band 2 and a second fixing hole 3, wherein the pressurizing tension band 2 is located between the first fixing hole 1 and the second fixing hole 3, and the first fixing hole 1, the pressurizing tension band 2 and the second fixing hole 3 are of an integral structure. The first fixing hole 1 and the second fixing hole 3 are of circular structures, and the pressurizing tension belt 2 is of a waist-shaped hole structure. The first fixing hole 1 and the pressurizing tension band 2 keep the same curvature with the patella, and the second fixing hole 3 is contacted with the side face of the bottom of the patella. The first fixing hole 1, the pressurizing tension belt 2 and the second fixing hole 3 are made of titanium-nickel memory alloy plates.
Example 1
As shown in fig. 3, the proper specification of the patella tension band fixer is selected according to the size of the patella, the patella tension band fixer is soaked in ice water, the compression tension band 2 is stretched in a compression mode, the patella after reset is placed in the compression tension band 2, two kirschner wires penetrate through the upper end and the lower end of a fracture line, the compression tension band 2 is attached to fix the first fixing hole 1 and the compression tension band 2 at the fracture wound surface, the second fixing hole 3 is in contact with the side surface of the patella, the patella tension band fixer can shrink after recovering the elastic memory function by hot normal saline hot compress, namely, the axial height becomes low, the tension band principle is simulated, the bone is fixed in a compression mode along the direction of the kirschner wires, the fixation is firm, the looseness is not easy, the knee.
Example 2
As shown in fig. 4, the proper specification of the patella tension band fixer is selected according to the size of the patella, the patella tension band fixer is soaked in ice water, the compression and stretching compression tension band 2 is compressed and stretched, the restored patella is placed in the compression and stretching tension band 2, a kirschner pin penetrates through the upper end and the lower end of a fracture line, the fixing hole 1 and the compression tension band 2 are fixed at the fracture wound surface through the fixing hole 1 and the fixing hole two 3, the fixing hole two 3 is contacted with the side surface of the patella, the compression tension band 2 can shrink after the patella tension band fixer recovers the elastic memory function by hot normal saline hot compress, namely, the axial height becomes low, the tension band principle is simulated, the bone is fixed by compression along the direction of the kirschner pin, the fixation is firm, the knee joint is not easy to loosen, the.
Claims (2)
1. A patella tension band fixator is characterized in that: including fixed orifices one (1), pressurization tension area (2) and fixed orifices two (3), pressurization tension area (2) are located between fixed orifices one (1) and fixed orifices two (3), fixed orifices one (1), pressurization tension area (2) and fixed orifices two (3) are an overall structure, fixed orifices one (1) and fixed orifices two (3) are circular structure, pressurization tension area (2) are waist type pass structure, fixed orifices one (1) and pressurization tension area (2) keep the camber unanimous with the patella, fixed orifices two (3) and patella bottom side contact.
2. The patellar tension strap anchor according to claim 1, wherein: the first fixing hole (1), the pressurizing tension belt (2) and the second fixing hole (3) are made of titanium-nickel memory alloy plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405033.5U CN212118267U (en) | 2019-12-27 | 2019-12-27 | Patella tension band fixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922405033.5U CN212118267U (en) | 2019-12-27 | 2019-12-27 | Patella tension band fixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212118267U true CN212118267U (en) | 2020-12-11 |
Family
ID=73676271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922405033.5U Active CN212118267U (en) | 2019-12-27 | 2019-12-27 | Patella tension band fixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212118267U (en) |
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2019
- 2019-12-27 CN CN201922405033.5U patent/CN212118267U/en active Active
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