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Lateral Entry Tibial Intramedullary Nail

A tibial bone marrow and entry technology, applied in the field of lateral entry tibial intramedullary needle, can solve the problems of damage to the patellar ligament, difficulty in fracture reduction, inconvenient body placement, etc., and achieve the effects of convenient operation and high reduction success rate.

Active Publication Date: 2021-05-07
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing intramedullary nails can only be inserted through an incision directly in front of the tibial plateau. The knee joint needs to be opened, which will damage the patellar ligament, and the knee joint must be flexed up to 100° when the nail is inserted. It is inconvenient to place the body and difficult to reduce the fracture.

Method used

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  • Lateral Entry Tibial Intramedullary Nail
  • Lateral Entry Tibial Intramedullary Nail
  • Lateral Entry Tibial Intramedullary Nail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 , 2 As shown in , 3, the lateral entry tibial intramedullary needle disclosed in this embodiment includes a main body 1 with a tail cap 2 on the upper end of the main body, the main body 1 includes a vertical section and a lateral curved section, the upper end of the vertical section and the lower end of the lateral curved section Smooth transition connection, the vertical section is parallel to the Z direction, the side bending section is sideways bending to the Y direction, and the side bending section is provided with a first nail path 5 and a second nail path 6, and a first nail path 5 and a second nail path 6 All parallel to the YZ plane, the bottom of the vertical section has a third nail path 10 and a fourth nail path 11, the fourth nail path 11 is located below the third nail path 10, and the axis of the third nail path 10 is aligned with the fourth nail path 11. The axis is vertical, and the third nail path 10 or the fourth nail path 11 is par...

Embodiment 2

[0032] The difference between this embodiment and embodiment 1 is: as Figure 4 , 5 As shown in , 6, the fifth nail road 3 and the sixth nail road 4 are arranged on the side bending section, the fifth nail road 3 and the sixth nail road 4 are vertically intersected, and the fifth nail road 3 and the sixth nail road 4 are all connected to The side bending section is vertical, and the fifth nail path 3 and the sixth nail path 4 are at an angle of 45° with the YZ plane; above.

[0033] There is also a seventh nail path 7 between the first nail path 5 and the second nail path 6, the seventh nail path 7 is perpendicular to the lateral bending section, and the seventh nail path 7 is parallel to the XZ plane.

[0034] Such as Figure 4 , 5 , 7, the bottom of the vertical section has the eighth nail track 8 and the ninth nail track 9, the eighth nail track 8 and the ninth nail track 9 perpendicular intersection, the eighth nail track 8 and the ninth nail track 9 Both are perpendi...

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PUM

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Abstract

The invention relates to a lateral entry tibial intramedullary nail, comprising a main body, the main body includes a vertical section and a lateral curved section, the upper end of the vertical section is smoothly transitioned to the lower end of the lateral curved section, and the lateral curved section bends laterally in the Y direction , the first nail track and the second nail track are provided on the side bending section, the first nail track and the second nail track are parallel to the YZ plane, and the third nail track and the fourth nail track are arranged at the lower part of the vertical section The fourth nail track is located below the third nail track, the axis of the third nail track is perpendicular to the axis of the fourth nail track, and the third or fourth nail track is parallel to the XZ plane. The axes of the third nail track and the fourth nail track are both perpendicular to the axis of the vertical section, and the third nail track is parallel to the XZ plane. The present invention can be incised and entered from the outer side of the tibial plateau without opening the knee joint and bone ligament, thus protecting the joint and ligament. Fracture reduction is not restricted by the position of the body, the operation is convenient, and the success rate of reduction is high; the removal of the second operation is also not limited by the position of the body.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tibial intramedullary needle with a lateral entrance. Background technique [0002] Existing intramedullary nails can only be inserted through an incision directly in front of the tibial plateau. The knee joint needs to be opened, which will damage the patellar ligament, and the knee joint must be bent up to 100° when the nail is inserted. Contents of the invention [0003] The present invention aims to provide a lateral access tibial intramedullary nail, which can be incised and entered from the lower side of the tibial plateau, without opening the knee joint, without cutting the bone ligament, and protecting the joint and ligament. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is as follows: [0005] The lateral entry tibial intramedullary nail includes a main body, the main body includes a vertical section...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/72
CPCA61B17/72A61B17/725
Inventor 段宏郎志刚熊燕余泽平刘宏远方向
Owner WEST CHINA HOSPITAL SICHUAN UNIV