In-vitro aiming positioning device for distal interlocking nail of orthopedic intramedullary nail

Abstract

The invention discloses an in-vitro aiming positioning device for a distal interlocking nail of an orthopedic intramedullary nail. The device comprises a near-end fixing device, an adjusting device and an aiming device, wherein the near-end fixing device comprises a near-end fixing device and a first connecting plate arranged at one end of the near-end fixing device; the adjusting device comprisesan up-and-down adjustable connecting rod, a second connecting plate, an adjustable sphere sleeve fixing device and a distal device connecting plate, wherein the up-and-down adjustable connecting rodis in sliding connection with one end, far from the near-end fixing device, of the first connecting plate; the second connecting plate is fixedly connected with the up-and-down adjustable connecting rod; the adjustable sphere sleeve fixing device is arranged at one end, far away from the up-and-down adjustable connecting rod, of the second connecting plate; the distal device connecting plate is arranged at one end of the adjustable sphere sleeve fixing device; and the second connecting plate and the distal device connecting plate are provided with temporary fixing holes which are matched witheach other. According to the invention, accuracy of the distal interlocking nail can be improved, and damage caused by repeated drilling on the bone surface can be reduced, so that the radiation fluoroscopy time in an operation can be effectively shortened, health of a patient can be facilitated, damage to fracture by repeated drilling is avoided, and fixation strength of interlocking nails can bebetter met.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an in vitro targeting and positioning device for distal locking nails of orthopedic intramedullary nails. Background technique [0002] With the increase of high-violence injuries, the occurrence of fractures in the backbone of the human body increases accordingly. Strong and effective fixation can better improve the prognosis and effect of patients. Intramedullary fixation for human cadre fractures is due to its high fixation strength and fracture healing rate. More and more orthopedic surgeons praise its advantages, but for the intramedullary nail locking problem, because of the locking nail and fixation of the distal end of the intramedullary nail during the operation, and the shortage of fixing and aiming equipment, the problem is greatly increased. The operation time increases the difficulty of the operation. At present, most doctors lock with bare hands under fluor...

AI Technical Summary

Problems solved by technology

At present, most doctors lock with bare hands under fluoroscopy, but due to differences in personal skills, repeated drilling and other situations have caused bone damage, and at the same time reduced the firmness of the locking nails, and at the same time increased intraoperative fluoroscopy. and patient injury

At the same time, due to the increase in operation time, the physical damage to the patient increases, and the patient's surgical anesthesia and other related costs increase.

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