Femoral nail guide pin positioning system and using method thereof

Abstract

The invention discloses a femoral nail guide pin positioning system and a using method thereof. The system comprises a positioning device and a guide pin device; the positioning device comprises a base and a first sliding rod perpendicularly fixed to the base, a first sliding block and a cross-shaped sliding lock are connected to the first sliding rod in a sliding mode separately, a second slidingrod perpendicular to the first sliding rod is connected to the cross-shaped sliding lock in a sliding mode, a second sliding block is connected to the second sliding rod in a sliding mode, and a first locking screw perpendicular to the first sliding rod and a second locking screw perpendicular to the second sliding rod are arranged on the cross-shaped sliding lock separately. In-vitro positioningof the thighbone axle wire can be achieved through the positioning device, and guide pins are guided into the thighbone ideal position at a time through the guide pin device after positioning is completed, so that accurate positioning of the guide pins is achieved, the phenomenon that the guide pins are repeatedly guided is avoided, the operation efficiency is improved, operation wounds of a patient and intraoperative blood loss are greatly reduced, and the operation infection risk is lowered.

Description

technical field [0001] The invention relates to a femoral intramedullary nail guide pin positioning system and a using method thereof, belonging to the technical field of medical devices. Background technique [0002] Femoral neck fractures and intertrochanteric fractures are clinically more common types of fractures, with the highest incidence in the elderly. Femoral neck fractures or intertrochanteric fractures often require surgery. The common operation method is to use a traction table to pull the lower limbs to reset, then penetrate a guide wire through the proximal femur, and then penetrate the intramedullary nail to fix the fractured end after reaming along the guide wire. The most critical step in this operation is to penetrate the guide wire, which can guide the penetration of the intramedullary nail. The position of the guide wire directly affects whether the intramedullary nail can be penetrated to a suitable position, thereby affecting the final surgical effect....

AI Technical Summary

Problems solved by technology

If the position of the guide needle is not suitable, it is often necessary to repeatedly penetrate the guide needle during the operation, which will inevitably increase the operation time, increase the surgical trauma and blood loss of the patient, and increase the risk of surgical infection

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