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Fine adjustment aiming device for far-end locking of femoral intramedullary nail

A technology of an aiming device and a distal lock, which is applied in the field of medical devices, can solve the problems of increasing the number of fluoroscopy times and the inability to complete two locking nails at the same time in the free-hand locking nail technology, so as to reduce the number of X-ray fluoroscopy, shorten the operation time, and reduce the operation time. effect of time

Pending Publication Date: 2021-01-01
LUOYANG ORTHOPEDIC TRAUMATOLOGICAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of perspectives of the freehand nail locking technique increases, and the locking nails can only be inserted sequentially, and two locking nails cannot be inserted at the same time.

Method used

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  • Fine adjustment aiming device for far-end locking of femoral intramedullary nail
  • Fine adjustment aiming device for far-end locking of femoral intramedullary nail
  • Fine adjustment aiming device for far-end locking of femoral intramedullary nail

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Experimental program
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Effect test

Embodiment Construction

[0026] Further detailed description will be made below in conjunction with the accompanying drawings and preferred embodiments.

[0027] see Figure 1 to Figure 4 , a fine-tuning aiming device for locking the distal end of the femoral intramedullary nail, including an aiming arm, the proximal end of the aiming arm is connected to one end of the intramedullary nail handle 2 through a detachable connection device, and the other end of the intramedullary nail handle is detachable to the intramedullary nail 3 connection, the aiming arm is provided with an adjusting assembly for aiming at the distal locking hole 4 on the intramedullary nail. In this embodiment, two distal locking holes 4 are arranged side by side along the length direction of the intramedullary nail. For the horizontal slider 5 on the top, the whole aiming arm is parallel to the intramedullary nail, and the sliding direction of the horizontal slider is consistent with the distribution direction of the locking holes...

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Abstract

A fine adjustment aiming device for far-end locking of femoral intramedullary nail comprises an aiming arm used for being detachably connected with an intramedullary nail handle, wherein an adjustingassembly is arranged on the aiming arm and comprises a transverse sliding block arranged on the aiming arm in a sliding mode, a longitudinal sliding block perpendicular to the sliding direction of thetransverse sliding block is arranged in the transverse sliding block, an aiming frame is arranged at the bottom of the longitudinal sliding block, a first adjusting block and a second adjusting blockwhich are opposite are arranged in the aiming frame in a sliding mode, a navigation hole is formed in each of the first adjusting block and the second adjusting block, a first adjusting screw is in threaded connection with a left end screw hole of the aiming frame and then rotationally connected with the first adjusting block, and a second adjusting screw is in threaded connection with a right end screw hole of the aiming frame and then is rotationally connected with the second adjusting block. The implantation position of far-end locking screws can be accurately determined through independent fine adjustment of the adjusting blocks, the operation time is shortened, the perspective frequency is reduced, medical staff and patients are protected, and the fine adjustment aiming device can beconnected and matched with various intramedullary nail handles on the market for use and has extremely high universality.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a fine-tuning and aiming device for locking nails at the distal end of a femoral intramedullary nail. Background technique [0002] Femoral shaft fracture is one of the most common fractures in orthopedic clinics, accounting for 10% of systemic fractures. There are various treatment methods for femoral shaft fractures, such as bone traction, external fixation, internal fixation with plates, and intramedullary nail internal fixation. Currently, intramedullary nailing is the preferred method for the treatment of femoral shaft fractures. The intramedullary nail is fixed in the center, which has less damage to the blood supply at both ends of the fracture and less trauma, and at the same time makes the stress distribution of the fracture segment even, and has strong anti-rotation and bending resistance. It increases the stability of the broken end of the fracture, and can promote the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72A61B17/90
CPCA61B17/725A61B17/88A61B17/90
Inventor 倘艳锋杨玉霞李红军岳晨
Owner LUOYANG ORTHOPEDIC TRAUMATOLOGICAL HOSPITAL
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