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Knee joint anterior and posterior cruciate ligament femoral tunnel positioner

A cruciate ligament and knee joint technology, applied in the field of medical devices, can solve problems such as reducing operation time, and achieve the effects of high ease of operation, reduced interface stress, and high repeatability

Inactive Publication Date: 2013-01-09
FUZHOU GENERAL HOSPITAL OF NANJING MILITARY COMMAND P L A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The object of the present invention is to provide a knee joint anterior and posterior cruciate ligament femoral side tunnel locator, which not only solves the problem of visual blind spots that can only be observed from the lateral approach of arthroscopy in the past; Reconstructing the femoral tunnel at a physiological angle makes clinical reconstruction of the femoral tunnel more reproducible and easy to operate, greatly improving the accuracy of the operation, reducing the operation time, and having great use value and broad market space

Method used

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  • Knee joint anterior and posterior cruciate ligament femoral tunnel positioner
  • Knee joint anterior and posterior cruciate ligament femoral tunnel positioner
  • Knee joint anterior and posterior cruciate ligament femoral tunnel positioner

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Reference attached image 3 , with image 3 Shown is a schematic diagram of the positioner of the present invention applied to the posterior cruciate ligament of the left knee joint. The present invention is an anterior and posterior cruciate ligament femoral side tunnel locator of the knee joint, comprising a hook body 1, the hook head 2 of the hook body 1 is pointing to the femoral side insertion point of the anterior and posterior cruciate ligament, and the hook The long handle 3 of the head 2 faces upwards and is located above the front side of the femur 12. The long handle 3 is connected to a transversely arranged arc-shaped chute 4, and the arc-shaped chute 4 is inlaid with a relatively arc-shaped slide. The arc rod 5 that slides in the groove 4, the drill pipe guide sleeve 7 pointing to the gib end 6 is installed at the movable end of the arc rod 5 .

[0048] A scale mark 8 is arranged on the arc rod 5 .

[0049] A positioning bolt 9 is arranged on one end of ...

Embodiment 2

[0053] Reference attached Figure 4 , with Figure 4Shown is a schematic diagram of the application of the positioner of the present invention to the anterior cruciate ligament of the left knee joint. The present invention is an anterior and posterior cruciate ligament femoral side tunnel locator of the knee joint, comprising a hook body 1, the hook head 2 of the hook body 1 is pointing to the femoral side insertion point of the anterior and posterior cruciate ligament, and the hook The long handle 3 of the head 2 faces upwards and is located above the front side of the femur 12. The long handle 3 is connected to a transversely arranged arc-shaped chute 4, and the arc-shaped chute 4 is inlaid with a relatively arc-shaped slide. The arc rod 5 that slides in the groove 4, the drill pipe guide sleeve 7 pointing to the gib end 6 is installed at the movable end of the arc rod 5 .

[0054] A scale mark 8 is arranged on the arc rod 5 .

[0055] A positioning bolt 9 is arranged on ...

Embodiment 3

[0059] Reference attached Figure 5 , with Figure 5 Shown is a schematic diagram of the application of the positioner of the present invention to the anterior cruciate ligament of the right knee joint. The present invention is an anterior and posterior cruciate ligament femoral side tunnel locator of the knee joint, comprising a hook body 1, the hook head 2 of the hook body 1 stretches into the knee joint cavity and points to the femoral side insertion of the anterior and posterior cruciate ligaments, so The long handle 3 of the hook head 2 faces upward and is located above the front side of the femur 12. The long handle 3 is connected with a transversely arranged arc-shaped chute 4, and the arc-shaped chute 4 is inlaid with an arc that can be opposite to each other. The arc rod 5 that slides in the shape chute 4, the movable end of the arc rod 5 is equipped with a drill pipe guide sleeve 7 pointing at the end 6 of the hook head.

[0060] A scale mark 8 is arranged on the a...

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Abstract

The invention relates to a knee joint anterior and posterior cruciate ligament femoral tunnel positioner. The positioner comprises a hook body, wherein the hook head of the hook body extends in the knee joint cavity and points to the anterior and posterior cruciate ligament femoral insertion; the long stem of the hook head is upward and above the front of the femur of knee joint and is connected with an arc chute which is arranged laterally; a curved lever which can slide relatively to the arc chute is embedded in the arc chute; and the movable end of the curved lever is provided with a drillstem guide sleeve which directly points to the tip of the ligament hook head. By adopting the positioner of the invention, the problem that the previous arthroscope can perform observation only through the lateral approach and the visual blind area is caused, can be solved; and the reconstruction of femoral tunnel can be better performed from the physical point of the ligament, thus the reconstruction of femoral tunnel in clinic has higher repeatability and operability, the accuracy degree of operations is greatly increased, the operating time is reduced, and the positioner has great use value and wide market space.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a positioner for the femoral side tunnel of the anterior and posterior cruciate ligaments of the knee joint. Background technique [0002] 1. Physiological functions of the anterior cross and posterior cruciate ligaments [0003] 1. The anterior cruciate ligament and the posterior cruciate ligament are important structures that maintain the stability of the knee joint and guide the knee joint to complete its functions. [0004] 2. There are many patients with knee anterior and posterior cruciate ligament injuries every year. [0005] 3. The damage seriously damages the stability of the knee joint, and may cause damage to other important structures of the knee joint. [0006] 4. After the cruciate ligament is injured, it cannot repair itself, and it must be reconstructed through surgery to restore the stability of the knee joint. [0007] 2. At present, the medium and long-te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00
Inventor 王万明韩雪松张志宏李蓓
Owner FUZHOU GENERAL HOSPITAL OF NANJING MILITARY COMMAND P L A
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