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Tibial intramedullary nail

A bone marrow and internal nail technology, applied in the field of orthopaedic internal fixation devices, can solve the problems affecting the quality of life of patients, stubborn prepatellar pain, adjacent soft tissue damage, etc., and achieve the effects of avoiding prepatellar pain, excellent performance and reasonable structure.

Active Publication Date: 2015-03-11
BEIJING NATON TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The tibial intramedullary nail is an internal fixation device used to treat tibial shaft fractures. Currently, the tibial intramedullary nails on the market are implanted via the upper border of the tibial tubercle of the patellar ligament, resulting in a fracture of the patellar ligament and adjacent soft tissues. Injuries, postoperative adhesions and other aseptic inflammation, the disadvantage of this surgical technique is that the patient has stubborn anterior patellar pain after the operation
In addition, if the operator does not operate properly, the tail screw will be higher than the cortical bone, which will also stimulate the soft tissue around the patellar tendon and cause pain, seriously affecting the patient's quality of life

Method used

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings. The specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Such as figure 1 As shown, the anteromedial approach tibial intramedullary nail of the present invention includes a proximal end 1 and a distal end 2 suitable for insertion into the medullary cavity. The proximal end 1 is a part of the length L1 shown in the figure, and the distal end 2 is a part of the length L2 shown in the figure. part. The angle a between the centerline of the proximal end 1 and the longitudinal axis of the intramedullary nail is 18°-22°. The longitudinal axis of the intramedullary nail is Figure 1 The vertical Z-axis passing through the distal end of the intramedullary nail, and the centerline refers to the line along t...

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Abstract

The invention relates to a novel tibial intramedullary nail. The tibial intramedullary nail comprises a near end L1 (1) and a far end L2 (2) applicable to insertion into a medullary cavity, wherein the included angle alpha between the central line of the near end (1) and the longitudinal axis of the intramedullary nail is 18-22 degrees. The intramedullary nail takes the inner edge of a patellar tendon and an upper edge of a tibial jaw foot toe point as needle inserting points, so that damage to a patellar ligament is avoided and thus the anterior patellar pain after an operation is avoided.

Description

technical field [0001] The invention relates to an orthopedic internal fixation device, in particular to an intramedullary nail. Background technique [0002] The tibial intramedullary nail is an internal fixation device used to treat tibial shaft fractures. Currently, the tibial intramedullary nails on the market are implanted via the upper border of the tibial tubercle of the patellar ligament, resulting in a fracture of the patellar ligament and adjacent soft tissues. Injuries, postoperative adhesions and other aseptic inflammation, the disadvantage of this surgical technique is that the patient has stubborn anterior patellar pain after the operation. In addition, if the operator does not operate properly, the tail screw will be higher than the cortical bone, which will also stimulate the soft tissue around the patellar tendon and cause pain, seriously affecting the patient's quality of life. Contents of the invention [0003] Aiming at the deficiency of existing intra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/72
Inventor 张强王岩郑诚功
Owner BEIJING NATON TECH GRP CO LTD
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