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Knee joint approach intramedullary nail

An intramedullary nail and knee joint technology, applied in the fields of interlocking intramedullary nails, tibial fractures and supracondylar fractures of the femur, can solve the problems of patient pain and long time, and achieve the effect of reducing patient pain, compact structure and reasonable design

Inactive Publication Date: 2009-08-19
周志海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In tibial fracture surgery, tibial interlocking intramedullary nails are used, and another special surgical instrument is required for tibial locking, and a large incision needs to be made on the skin bone, which takes a long time during the operation and brings unnecessary inconvenience to the patient. pain

Method used

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  • Knee joint approach intramedullary nail
  • Knee joint approach intramedullary nail
  • Knee joint approach intramedullary nail

Examples

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Embodiment Construction

[0012] Refer to attached Figure 1~4 , the knee joint approach intramedullary nail has a screw rod 8, the screw rod 8 is provided with a through hole 7, the nail rod 8 is provided with a proximal end 4 and a distal end 9, and the proximal end 4 of the nail rod is provided with three multi-plane interlocking holes , are respectively the first multi-plane interlocking hole 1, the second multi-plane interlocking hole 2, the third multi-plane interlocking hole 3, the first multi-plane interlocking hole 1, the second multi-plane interlocking hole 2 and the third multi-plane interlocking hole The multi-plane interlocking holes 3 are respectively distributed on three planes with different angles, the intersecting angle b between the multi-plane interlocking holes is 23-27°, and the inclination angle between the central axis of the proximal end 4 of the nail shank and the central axis of the nail shank is a is 9-12°. Two groups of intersecting nail holes are arranged on the distal en...

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Abstract

The invention discloses a knee joint approach intramedullary nail, relates to an interlocking intramedullary nail of which the far end and the near end are provided with interlocking screw holes, and is suitable for tibial fracture and supracondylar fracture of femur. The knee joint approach intramedullary nail is provided with a nail shank which is provided with a through hole inside; the nail shank is provided with the far end and the near end; the near end of the nail shank is provided with three multi-plane interlocking holes which are distributed on three planes with different angles respectively and of which a crossing angle b is between 23 and 27 DEG; a tilt angle a between the near end of the nail shank and a central axis of the nail shank is between 9 and 12 DEG; the far end of the nail shank is provided with two groups of interlocking holes of which the crossing angle is 90 DEG; the interlocking holes are provided with oval pressurizing lockholes and circular lockholes; the near end of the nail shank is provided with an apparatus connection positioning rebate and an apparatus connecting screw hole.

Description

technical field [0001] The knee joint approach intramedullary nail of the present invention relates to an interlocking intramedullary nail with interlocking screw holes at the distal and proximal ends, which is suitable for tibial fractures and femoral supracondylar fractures. Background technique [0002] At present, the internal fixation implant for femoral shaft fracture surgery is the standard femoral interlocking intramedullary nail, and the standard femoral locking mode is performed with special surgical instruments. In tibial fracture surgery, tibial interlocking intramedullary nails are used, and another special surgical instrument is required for tibial locking, and a large incision needs to be made on the skin bone, which takes a long time during the operation and brings unnecessary inconvenience to the patient. pain. Contents of the invention [0003] The object of the present invention is to provide a kind of knee joint approach intramedullary nail in view of ...

Claims

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Application Information

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IPC IPC(8): A61B17/72
Inventor 高延征周志海周宏伟
Owner 周志海
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