Method and device for remotely measuring fracture rotation alignment by laser

Abstract

The invention belongs to the field of medical auxiliary equipment, wherein a medical bone needle, a cross laser digital display inclinometer and a cantilever type laser light path calibration device are applied. A space standard plane (cross section) needed during laser light path measurement is obtained through the cantilever type laser light path calibration device and the laser digital displayinclinometer borne by a controllable stepping motor set; respectively implanting a medical spicule at the relatively constant positions of the near end and the far end of the fracture; the absolute angle of each medical spicule relative to the ground is obtained in a standard plane through laser long-distance measurement. Calculating a relative rotation angle between the near end and the far end of the bone; the measuring system is simple in principle, easy to operate by a single person, low in manufacturing cost, suitable for narrow and small places, capable of automatically aligning measuring instruments through wireless control, free of large equipment and professional teams, capable of saving medical cost, free of X-ray fluoroscopy, free of extra body injuries, beneficial for medical units of all levels to carry out the technology and the like.

Description

technical field [0001] The disclosure of the invention belongs to the field of medical auxiliary equipment, in particular to a method and a device for measuring the rotational alignment of fractures in a long distance by laser. Background technique [0002] Limb fractures, especially backbone fractures, often seriously affect patients' daily life and work ability due to various reasons, and endanger their health. Due to the increasing progress of medical technology and level, hospitals with relevant qualifications at home and abroad can carry out this kind of fracture surgery. [0003] Closed reduction, intramedullary nailing and osteosynthesis is one of the commonly used and standard minimally invasive treatment methods for such injuries, because it can preserve the blood supply of the periosteum of the fracture site to the greatest extent and promote fracture healing. However, the use of open surgery will aggravate the destruction of local blood supply, which is not condu...

AI Technical Summary

Problems solved by technology

However, such methods often require specialized large-scale medical equipment and related software, as well as a well-coordinated assistive technology team.

Practice has proved that the use of the above methods will significantly prolong the operation time, which may increase the chance of intraoperative blood loss and infection; the extra X-ray fluoroscopy time will cause potential damage, increase medical costs, and increase the burden on patients or insurance

In addition, it needs to occupy a large surgical site, configure expensive software, hardware and auxiliary teams, and it may be difficult for grassroots hospitals to popularize

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