CN201612662U - Cruciate ligament avulsion fracture reduction drill positioning guide - Google Patents

Abstract

The cruciate ligament avulsion fracture reset drilling positioning guide of the utility model comprises an arcuate reset arm, a guide sleeve and a ferrule hook, and is characterized in that the guide sleeve is provided with two guide holes, and the arcuate reset The rear end of the arm is provided with a sliding groove or sleeve tube, the guide sleeve is installed in the sleeve tube or sliding groove, the ferrule hook is set at the front end of the bow-shaped reset arm, and the ferrule on the ferrule hook is set on the guide sleeve The extension line of the two guide holes of the barrel. It has the advantages of simple and reasonable structure and convenient operation and use. When in use, it can easily reset the fracture piece, guide the Kirschner wire drilling and pull the wire, which can make the operation process simpler, more convenient and more reliable. , effectively reducing the operation time and making the operation effect more reliable.

Description

Cruciate ligament avulsion fracture reduction drill positioning guide

technical field

The utility model relates to a medical operation instrument, in particular to a guide device specially used for reset, drilling and positioning of the cruciate ligament avulsion fracture of the knee joint, and belongs to the field of medical instruments.

Background technique

The cruciate ligament is a special dense connective tissue that connects the tibia and femur in the knee joint. Its main function is to maintain joint stability and coordinate joint movement. Car accidents or sports injuries can easily lead to cruciate ligament damage. For fracture patients with cruciate ligament avulsion, timely surgical reduction and effective fixation are required to heal the avulsed fracture fragments and restore the cruciate ligament. The original function of stabilizing joints.

In units equipped with arthroscopy and other equipment, the treatment is basically performed by reducing and fixing the fracture fragments under arthroscopy. The treatment process needs to be divided into multiple steps: 1. Use the probe pry hook to reset the fracture fragment and press it on the tibial avulsion; 2. Under the guidance of the guide, drill two holes between the medial cortex of the tibial tuberosity and the fracture fragment. The bone hole needs to be positioned twice; 3. Thread the wire; 4. Pull out the wire with pliers; 5. Pull the strong wire through the wire to fix the fracture. Because the "anterior cruciate ligament reconstruction guide" used in the existing operation has only the guiding function of a single hole, one bone hole can only be drilled after one positioning, and to fix the fracture fragment on the original position of the tibia, it is necessary to There are two bone holes, so it is necessary to drill the second bone hole after repositioning the first bone hole. When the guide is moved, the fracture pieces will leave the tibia and need to be reset and repositioned, which is prone to inaccurate positioning While affecting the therapeutic effect, it is also obvious that the positioning drilling time is long and increases the pain of the patient.

Contents of the invention

The utility model aims to overcome the shortcomings of the above-mentioned existing anterior cruciate ligament reconstruction guide, and provides a simple and reasonable structure, easy to operate and use, which can not only press the fracture fragments on the tibial avulsion place for good reset, but also restore the tibia The cruciate ligament avulsion fracture reduction drilling positioning guide for guiding the Kirschner wire to drill two bone holes between the inner cortex of the tubercle and the fracture piece is completed at one time.

The structure of the cruciate ligament avulsion fracture reset drilling positioning guide of the present utility model mainly includes a bow-shaped reset arm, a guide sleeve and a ferrule hook. The guide sleeve is provided with two guide holes, and the bow-shaped reset arm The rear end is provided with a sliding groove or sleeve tube, and the guide sleeve is installed in the sleeve tube or sliding groove. On the extension line of the two guide holes.

In order to better match with the anatomical structure of the cruciate ligament bottom end, it is convenient to directly use the guide to reset and press the fracture fragment on the tibial avulsion, and the pressing surface of the loop on the loop hook is an arc surface.

In order to facilitate fixing the adjusted guide sleeve on the bow-shaped reset arm, a locking device, such as a bolt lock, can be provided between the sliding groove or the sleeve tube at the rear end of the bow-shaped reset arm and the guide sleeve.

The cruciate ligament avulsion fracture reset drilling positioning guide of the utility model, because the pressing surface of the ferrule on the ferrule hook head is an arc surface, and the guide sleeve is provided with two guide holes, so it can be hooked with the ferrule. After the head is directly reset and pressed on the tibial avulsion, the existing method can be used to guide the Kirschner wire between the medial cortex of the tibial tubercle and the fracture to drill two bone holes without moving the position. It can effectively avoid the deviation of fracture fragments, and the wires introduced into the two bone holes can be directly pulled out of the joint with a ferrule for fixation. It has the advantages of simple and reasonable structure and convenient operation and use, and can easily reset the fracture fragments , Guiding the Kirschner wire to drill holes and pulling the wire can make the operation process of the operation simpler, more convenient and reliable, effectively reduce the operation time and make the operation effect more reliable.

Description of drawings

Accompanying drawing 1 is a kind of structural representation in the embodiment of the utility model;

Accompanying drawing 2 is the structure diagram of the use state of accompanying drawing 1.

Detailed ways

The accompanying drawing discloses a specific embodiment of the utility model without limitation, which is further described as follows in conjunction with the accompanying drawing.

The number 1 in the accompanying drawings is the ferrule hook, 2 is the ferrule, 3 is the arc reset arm, 4 is the guide sleeve, 5 is two guide holes, 6 is the locking device, 7 is the Kirschner wire, 8 is the tear Fracture fragments that have been dislodged, 9 is the tibia.

Referring to accompanying drawing 1, the cruciate ligament avulsion fracture reduction drilling positioning guide of the present utility model is mainly made up of arch reset arm 3, guide sleeve 4 and ferrule hook 1, and described guide sleeve 4 is provided with two a guide hole 5, the rear end of the arcuate reset arm 3 is provided with a slide groove or a sleeve tube, the guide sleeve 4 is installed in the sleeve tube or the slide groove, and the ferrule hook 1 is arranged at the front end of the arcuate reset arm 3. The ferrule 2 on the ring hook head 1 is located on the extension line of the two guide holes 5 of the guide sleeve.

In order to facilitate directly using the guide to reset and press the avulsed fracture piece 8 on the avulsion of the tibia 9, its structure is shown in Figure 2, the pressing surface of the ferrule 2 on the ferrule hook 1 is arc-shaped noodle.

In order to fix the adjusted guide sleeve 4 on the bow-shaped reset arm 3, a locking device 6 can be provided between the sliding groove at the rear end of the bow-shaped reset arm 3 or between the sleeve tube and the guide sleeve 4, such as using a bolt to lock .

When in use, after probing the joint with an arthroscope, clean up the congestion in the joint, place the bow-shaped reset arm, and use the ferrule hook 1 at the front end of the bow-shaped reset arm to easily reset and compress the avulsed fracture fragments at the avulsion On the tibia, put the front end of the guide sleeve 4 against the medial cortex of the tibial tubercle 9, tighten the locking device 6, and then use the Kirschner wire 7 to penetrate through the guide hole 5 and connect the fracture to the medial cortex of the tibial tuberosity. Drill two bone holes at suitable positions between the fracture pieces, and then introduce two silk threads from the two bone holes of the tibia 9 to pass through the two bone holes of the fracture piece 8, and then rely on the ferrule 2 to pull out the silk threads for fixation . The operation process of the operation becomes simpler, more convenient and more reliable, and the operation time can be effectively reduced and the operation effect can be improved.

Claims (3)

1. A cruciate ligament avulsion fracture reduction drilling positioning guide, comprising an arcuate reset arm, a guide sleeve and a collar hook, is characterized in that said guide sleeve is provided with two guide holes, and the arcuate reset The rear end of the arm is provided with a sliding groove or sleeve tube, the guide sleeve is installed in the sleeve tube or sliding groove, the ferrule hook is set at the front end of the bow-shaped reset arm, and the ferrule on the ferrule hook is set on the guide sleeve The extension line of the two guide holes of the barrel. 2. The cruciate ligament avulsion fracture reduction drilling positioning guide according to claim 1, characterized in that the pressing surface of the ferrule on the ferrule hook head is an arc-shaped surface. 3. The cruciate ligament avulsion fracture reduction drilling positioning guide according to claim 1 or 2, characterized in that a locking device is provided between the sliding groove or the sleeve tube at the rear end of the arcuate reset arm and the guide sleeve.

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