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Anterior cruciate ligament tibia end positioning device

An anterior cruciate ligament and positioning device technology, applied in the field of medical devices

Active Publication Date: 2016-08-03
HARBIN THE FIRST HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The blocking surface is with blocking teeth or without blocking teeth

Method used

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  • Anterior cruciate ligament tibia end positioning device
  • Anterior cruciate ligament tibia end positioning device
  • Anterior cruciate ligament tibia end positioning device

Examples

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Embodiment Construction

[0005] A positioning device for the tibial end of the anterior cruciate ligament of the knee joint, which includes a positioning arm 1, a handle support 3, a guide rod 4, and a lock nut 7, and is characterized in that: the front of the positioning arm 1 is provided with an arc protrusion 1- 1. Blocking tooth 1-2, arc raised arm 1-3, blocking surface 1-7; the front of the protrusion 1-1 is provided with a blocking surface 1-7, and the rear of the protrusion 1-1 is provided with an arc raised arm 1-3; the extension line of the through hole 4-3 on the guide rod 4 (direction of the guide needle) and the blocking surface 1-7 are at L, and the distance between L and the protrusion 1-1 is 6mm. There are blocking teeth 1-2 or no blocking teeth 1-2 on the blocking surface 1-7. A locking groove 1-4 and an arc-shaped slideway 1-5 are arranged behind the positioning arm 1 . One end of the handle support 3 is provided with a guide slideway 3-1, a slideway retaining groove 3-2, a locking t...

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Abstract

The invention relates to the field of medical equipment, in particular to an anterior cruciate ligament tibia end positioning device. The anterior cruciate ligament tibia end positioning device is characterized by comprising a positioning arm, a handle support seat, a guide rod and nut, wherein an arc bump, a stopping tooth, an arc bump arm and a stop surface are arranged in the front of the positioning arm; the stop surface is arranged in the front of the bump; the arc bump arm is arranged at the rear part of the bump; a contact point of an extension line of the through hole in the guide rod and the stop surface is L; the distance from the L to the bump is 6mm. The anterior cruciate ligament tibia end positioning device has the beneficial effects of being simple in structure, low in cost, convenient to operate and use and accurate to position, and is mechanically driven; the revision rate of a revision surgery is reduced; the pain of a patient is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a positioning device for the tibial end of the anterior cruciate ligament of the knee joint. Background technique [0002] In sports medicine diseases, the rupture of the anterior cruciate ligament of the knee joint is more common. The rupture of the anterior cruciate ligament will cause the instability of the knee joint. If the treatment is not timely, there will be damage to other tissues such as the articular cartilage and meniscus. The reconstruction of the anterior cruciate ligament of the knee joint It has always been an important research topic in the field of sports medicine. Arthroscopic minimally invasive reconstruction of the anterior cruciate ligament of the knee is a minimally invasive surgery. This method is difficult and delicate, and requires special instruments. However, compared with traditional open surgery, it can maintain the knee joint during ligament reconstr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B90/11A61B17/00
CPCA61B17/00
Inventor 孔庆波崔国庆孟庆刚赵建刚赵巍李卫曲志伟马立学李宝林高志国董艳如
Owner HARBIN THE FIRST HOSPITAL
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