CN119424073A

CN119424073A - Arthroscopic reconstruction of the anterior and posterior cruciate ligaments and auxiliary stress device for patellar dislocation

Info

Publication number: CN119424073A
Application number: CN202411548772.9A
Authority: CN
Inventors: 刘雷; 赵士博
Original assignee: Second Peoples Hospital of Nanning
Current assignee: Second Peoples Hospital of Nanning
Priority date: 2024-11-01
Filing date: 2024-11-01
Publication date: 2025-02-14

Abstract

The invention belongs to the technical field of medical instruments, and discloses a knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under an arthroscope, which comprises 4 brackets, wherein the upper ends of the brackets are connected with a top steel needle through a buckle, and the lower ends of the brackets are connected with a bottom steel needle through a buckle; the lower part of the bottom steel needle is connected with a gear device, the gear is connected with 4 elastic devices in a buckled mode, and the tail ends of the elastic devices are locked at the femur end and the tibia end through specific steel nails. The device is convenient to wear through the support with the buckle, convenient to fix through the elastic device, convenient to adjust fixing force through the gear, simple in structure, convenient to wear, light in weight and labor-saving.

Description

Anterior and posterior cruciate ligament reconstruction and auxiliary stress device for knee patella dislocation under arthroscope

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under an arthroscope.

Background

Congenital patellar dysplasia is a skeletal problem caused by congenital dysplasia, mainly involving morphological, structural and functional abnormalities of the patella. Congenital patellar dysplasia refers to morphological, structural or functional abnormalities of the patella that occur during fetal or birth. Genetic factors when similar cases exist in the family, the risk of patellar dysplasia for children increases. The formation and growth of the patella requires sufficient nutrition supply, and the pregnancy malnutrition affects the development of the patella. Maternal endocrine dyscrasia, which affects the bone growth of the fetus, is caused by maternal pregnancy diseases such as diabetes, hypothyroidism and the like. However, the knee joint is stabilized by wearing the protective clothing, and the protective clothing is heavy and inconvenient to wear.

Through the above analysis, the problems and defects existing in the prior art are as follows:

The knee joint is stabilized through wearing the protective equipment in the prior art, and the protective equipment is heavy and inconvenient to wear.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a device for reconstructing anterior and posterior cruciate ligaments and assisting stress of knee patella dislocation under arthroscope.

The invention discloses a knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under an arthroscope, which comprises 4 brackets, wherein the upper ends of the brackets are connected with a top steel needle through a buckle, the lower ends of the brackets are connected with a bottom steel needle through a buckle, a gear device is connected below the bottom steel needle, 4 elastic devices are connected on the gear in a buckled manner, and the tail ends of the elastic devices are locked at a femur end and a tibia end through specific steel nails.

Further, the gear is provided with a groove catch, which locks the elastic means at various angles.

Further, the elastic means is a stretchable elastic means made of impermeable material.

Further, 2 adjacent elastic devices are screwed into the femur end by steel nails, and the other 2 elastic devices are screwed into the tibia end by steel nails.

In combination with the technical scheme and the technical problems to be solved, the technical scheme to be protected has the following advantages and positive effects:

the knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under the arthroscope is convenient to wear through the support with the buckle, is convenient to fix through the elastic device, and is convenient to adjust fixing force through the gear, and the knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device is simple in structure, convenient to wear, light and labor-saving.

The invention solves the technical problems in the prior art that:

1. The patella is unstable in fixation, and in the operation of congenital patella dysplasia, the traditional patella fixation method is generally difficult to maintain the stability of the patella, and particularly in the reconstruction process of anterior and posterior cruciate ligaments, the patella is easy to shift, so that the operation precision and effect are affected.

2. The prior patella fixing device lacks an effective force adjusting mechanism, is difficult to adjust in real time according to different conditions of patients, is difficult to control the tightness of the fixing belt, and is easy to cause over-tightening or over-loosening of the fixing, thereby influencing the recovery and stability of the patella.

3. The traditional patella fixing device has complex operation and low efficiency, is complicated in design, often needs a plurality of steps in the use process, increases operation time and operation burden of doctors, and particularly has limited fine operation in complex arthroscopic surgery.

4. The distribution of the postoperative stress is uneven, namely, after the patella is fixed, the traditional device is difficult to ensure that the distribution of the postoperative patella and surrounding tissues is even, and the postoperative stress concentration is easy to be initiated, thereby influencing the recovery of the ligament and the long-term recovery effect.

The invention achieves remarkable technical progress:

1. The patella fixing stability is greatly improved, the invention provides a multi-point fixing design through the synergistic effect of the protective clamp 1, the fixing belt 2 and the adhesive belt 3, ensures the stability of the patella in anterior and posterior cruciate ligament reconstruction operation, avoids the displacement problem of the patella in the operation process, and improves the operation precision and success rate.

2. The invention designs the combination of the gear 4, the rotary button 7 and the connecting rope 6, and realizes the real-time adjustment of the fixing force by adjusting the tightness of the fixing belt through the rotary button. The doctor can flexibly control the force of the fixing belt according to the actual condition of the operation, ensures that the patella is supported stably and is not unnecessarily pressed, and obviously improves the operation flexibility.

3. The invention simplifies the operation flow, the adhesive tape and the rotary adjusting mechanism make the fixing device easy to install and adjust, reduces the operation steps and time of the operation, improves the operation efficiency, reduces the workload of doctors, and is especially suitable for complex arthroscopic operation environment.

4. The invention can provide even stress distribution through the adjustable fixing belt and the protective clamp structure, is beneficial to even stress bearing of the patella and surrounding tissues after operation, reduces the phenomenon of postoperative stress concentration, promotes the recovery of the patella and anterior and posterior cruciate ligaments, and improves the long-term rehabilitation effect of patients.

Drawings

Fig. 1 is a block diagram of a device for reconstructing anterior and posterior cruciate ligaments and assisting stress of knee patella dislocation under arthroscope according to an embodiment of the present invention.

Fig. 2 is a schematic view of the bottom structure of the device according to the embodiment of the present invention.

In the figure, 1, a top steel needle, 2, a bracket, 3, a bottom steel needle, 4, a gear, 5, an elastic device and 6, a buckle.

Detailed Description

The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under the arthroscope is mainly applied to the knee patella dislocation operation process, and auxiliary fixation of the patella and the ligament is realized, so that postoperative recovery is more stable and efficient. The working principle of the device comprises a plurality of parts, and the device is as follows:

1. function of protective clip and fixing strap

The protective clip is used as a main body part of the device and has good supporting and fixing functions. The four corners of the protective clamp are connected with fixing belts, and the fixing belts provide stable external support by wrapping the knee joint. The length of the fixing belt is adjustable, and the fixing belt is connected with the fixing point outside the knee through the protecting clamp, so that the ligament of the knee joint and the patella are ensured to be kept at stable positions after operation. The protective clamp has the functions of limiting the displacement of the patella and providing additional stress support for the knee joint after ligament reconstruction, thereby helping patients recover quickly.

2. Application mode of adhesive tape

The right side of the clamp is provided with an adhesive tape designed to allow the device to be quickly secured to the patient's knee, providing a non-invasive external fixation. The adhesive tape ensures that the device is not easily slid or displaced after surgery by contacting the skin and forming a firm bond. The use of the adhesive tape enables the device to be suitable for knee joints of different sizes, and simultaneously is convenient to adjust and disassemble, and discomfort of patients is reduced.

3. Adjusting mechanism for gear and rotary knob

The back of the device is embedded with a gear, and the gear controls the tightness of the fixing belt through a rotating button. By rotating the knob, the user can adjust the position of the gear, thereby changing the tension of the securing strap. The design ensures that the device can flexibly adjust the compression force to the knee joint as required after operation, and is suitable for the rehabilitation requirements of different stages after operation. The accurate adjustment mechanism of rotation button makes the device can provide even stress distribution, avoids causing too big pressure to the knee joint, ensures recovered comfort level and the security of postoperative.

4. Stress conduction function of connecting rope

The gear is connected with the fixing belt through a connecting rope, and when the rotating angle of the gear is adjusted through the rotating button, the tensioning degree of the fixing belt is synchronously adjusted through the connecting rope. The connecting rope plays a role in transmitting the adjusting force from the gear to the fixing belt, so that the whole device can quickly adjust the stress. The design ensures that the device can accurately adjust the supporting force to the knee joint, and effectively reduces the risk of secondary injury or poor operation effect caused by improper tightness.

5. Fixing function of the fixing hole

The tail end of the fixing belt is provided with a fixing hole which is used for inserting a fixing bolt or other fixing devices, so that the fixing belt can be firmly fixed on an operating table or a supporting device. This design can ensure that the knee joint remains in a stable position during surgery and during post-operative rehabilitation, reducing the risk of patella displacement. The tight connection of the fixing holes and the external supporting structure ensures the stability of the device and avoids the interference of accidental displacement on the ligament reconstruction effect.

6. Stress control and auxiliary functions

Through the cooperation of the rotating button, the gear, the fixing belt, the connecting rope and other parts of the device, the stress state of the knee joint can be monitored and regulated in real time. For patients with patellar dysplasia, the recovery stage after ligament reconstruction is very critical, and the auxiliary stress function provided by the device is beneficial to reducing dislocation of the postoperative patella and re-injury of the ligament, ensuring correct growth and repair of the postoperative ligament and the patella, and finally improving the overall effect of the operation.

Through the cooperative work of the functions, the device can effectively improve the recovery quality of patients after congenital patella dysplasia surgery and ensure the stability of the knee joint after ligament reconstruction.

As shown in fig. 1 and 2, the device for reconstructing anterior and posterior cruciate ligaments and assisting stress of knee patella dislocation under arthroscope provided by the embodiment of the invention includes:

the protective clamp 1, the fixing belt 2, the adhesive belt 3, the gear 4, the fixing hole 5, the connecting rope 6 and the rotating button 7.

The four corners of the protective clamp 1 are provided with fixing belts 2, the right side of the protective clamp 1 is provided with an adhesive belt 3, the back of the protective clamp 1 is embedded with a gear 4, and the gear 4 is provided with a rotary button 7.

The gear 4 provided by the embodiment of the invention is connected with the fixing belt 2 through the connecting rope 6.

The tail end of the fixing belt 2 provided by the embodiment of the invention is provided with a fixing hole 5.

When the invention works, firstly, the protective clamp 1 is opened through the adhesive tape 3, the protective clamp 1 is placed at the position of the patella, the protective clamp 1 is fixed through the adhesive tape 3, the fixing tape 2 is fixed at the position of the patella, and the gear 4 is rotated through the rotary button 7to drag the fixing tape 2 by the connecting rope 6, so that the strength of the fixing tape is adjusted.

The knee patella dislocation anterior and posterior cruciate ligament reconstruction and auxiliary stress device under the arthroscope provides targeted patella fixation and stress adjustment through accurate mechanical design. Firstly, the protective clamp 1 of the device can be flexibly opened and attached to the patella part through the opening function of the adhesive tape 3. The structural design of the protective clip allows the protective clip to be tightly attached above the patella, ensures that the device cannot shift in the operation process, and provides a stable supporting effect.

During the fixation, the fixation strap 2 is fixed by the four corners of the clip 1 and is firmly fixed at the patella by the fixation holes 5 at its tail end. The fixation straps provide primary support and fixation to prevent unwanted movement or rotation of the patella during surgery, ensuring that the patella is in the correct position for reconstruction of the anterior and posterior cruciate ligaments.

Next, the surgeon can turn the gear by means of the rotation knob 7 through the gear 4 provided at the back of the clip 1. The gear 4 pulls the fixing belt 2 through the connecting rope 6, and the tightness of the fixing belt is further adjusted by utilizing the mechanical pulling principle. The design of the swivel knob allows the surgeon flexibility in adjusting the fixation force to ensure that the patella is adequately supported without undue stress depending on the procedure.

The design of the whole device ensures that the fixed force of the patella can be adjusted through simple mechanical operation in the anterior and posterior cruciate ligament reconstruction operation process, so that the position and pressure distribution of the patella can be accurately controlled, the position deviation of the patella is avoided, efficient operation assistance is provided, and the operation effect and the recovery quality are improved.

Example 1 auxiliary stress device for rehabilitation after knee surgery

After a patient with dislocation of the patella and injury of the anterior and posterior cruciate ligaments performs a knee arthroscopic surgery, the doctor selects the auxiliary stress device to help the patient recover. After the operation, the doctor fixes the device on the knee joint of the patient, and the protective clamp wraps the knee joint to ensure that the knee joint is in a stable state. The device is tightly attached to the skin of a patient through the adhesive tape, and the fixing tape is accurately adjusted through the gear and the rotary button, so that the moderate tension of the fixing tape is ensured, and moderate pressure is provided.

At this time, the fine adjustment function of the rotating knob helps doctors to gradually reduce the pressure of the fixing belt according to the recovery condition of patients, avoid overlarge stress on knee joints and prevent secondary damage caused by overlarge pressure. At the same time, the flexible material of the device is comfortable for the patient during use and does not cause discomfort to the skin. The doctor also firmly fixes the device on the operating table or rehabilitation equipment through the fixing hole, ensures that the device keeps stable when the patient moves or carries out physical therapy, and helps the patient to recover safely.

Example 2 Knee Joint fixing device in exercise rehabilitation

Another patient had a tear in the anterior and posterior cruciate ligaments of the knee joint while participating in the physical exercise, and needed ligament reconstruction surgery. After the operation, in order to ensure the stability of the patella and the ligament in the rehabilitation process, the doctor uses the auxiliary stress device of the invention for rehabilitation treatment of patients.

In the postoperative rehabilitation stage, a doctor controls the gear to operate by adjusting the rotating button, so that the pressure applied by the fixing belt is gradually reduced to adapt to the gradual recovery of the knee joint. The connecting rope ensures the linkage operation of the gear and the fixed belt and ensures the accurate control of the pressure. By adjustment of the adhesive tape, the device can closely conform to the knee area of the patient and provide the necessary support for early motor rehabilitation of the patient.

In order to ensure that the device does not slide during movement, the physician uses the fixation holes to firmly connect the fixation strap with the rehabilitation device. In the whole rehabilitation process, the device helps the patient maintain the stability of the knee joint, avoids unnecessary dislocation of the patella or ligament strain, and accelerates the rehabilitation process of the patient.

The foregoing is merely illustrative of specific embodiments of the present invention, and the scope of the invention is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present invention will be apparent to those skilled in the art within the scope of the present invention.

Claims

1. An arthroscopic anterior and posterior cruciate ligament reconstruction and auxiliary stress device for patellar dislocation of the knee, characterized in that it includes 4 brackets, the upper ends of the brackets are connected to the top steel needles by buckles, and the lower ends of the brackets are connected to the bottom steel needles by buckles; the bottom steel needles are connected to a gear device below, and the gears are buckled and connected to 4 elastic devices, and the ends of the elastic devices are locked at the femoral end and the tibial end by specific steel nails.

2. The arthroscopic anterior and posterior cruciate ligament reconstruction and auxiliary stress device for patellar dislocation as described in claim 1, characterized in that the gear has a groove buckle to lock the elastic device at various angles.

3. The arthroscopic anterior and posterior cruciate ligament reconstruction and auxiliary stress device for patellar dislocation as described in claim 1, characterized in that the elastic device is a retractable elastic device made of impermeable material.

4. The arthroscopic anterior and posterior cruciate ligament reconstruction and auxiliary stress device for patellar dislocation as described in claim 1 is characterized in that two adjacent elastic devices are screwed into and fixed at the femoral end by steel nails, and the other two elastic devices are screwed into and fixed at the tibial end by steel nails.