Adjustable tibia probe

Abstract

The invention discloses an adjustable tibia probe. The adjustable tibia probe comprises a vertical rod, a rotating rod is arranged at the upper end of the vertical rod, a sleeve is arranged outside the rotating rod, a probe is arranged in the middle of the vertical rod, a guide rod is arranged at the lower end of the vertical rod, a height adjusting mechanism is arranged in the middle of the rotating rod, a prompting mechanism is arranged at the lower end of the rotating rod, and a connecting mechanism is arranged on one side of the guide rod; the height adjusting mechanism can accurately adjust the height of the probe, the prompting mechanism makes a sound every time when the probe is adjusted by 1 mm, a doctor can conveniently and accurately judge the adjusting height of the probe, the measuring precision is improved, the connecting mechanism can be very conveniently connected with a tibia osteotomy module, and the operation time is shortened.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an adjustable tibial probe. Background technique [0002] Knee replacement surgery is the process of removing the damaged bone at the end of the femur and tibia, and implanting a prosthesis on the surface of the end of the femur and tibia to replace the human knee joint. The specific process is to first resect the damaged cartilage surface of the femur and tibial end and part of the subchondral bone, then position the metal femoral implant and press it to the prepared femoral end surface, and then position the metal tibial implant , and crimp it to the prepared surface of the tibial end, and finally insert the patella assembly on the medial side of the patella. During this process, the amount of osteotomy at the end of the tibia needs to be determined. The current technology is that the doctor uses a tibial depth finder to determine the amount of osteotomy at the end of the ti...

AI Technical Summary

Problems solved by technology

[0003] 1. The adjustment method of the adjustable tibial depth finder in the prior art is not convenient, the adjustment accuracy is uncertain, and the adjustment height is difficult to judge. It requires the doctor to pay too much attention, which causes the adjustment and adjustment of the tibia to decrease, and the difficulty of the operation increases;

[0004] Two, in the prior art, the connection mode between the tibial depth finder and the tibial clamping assembly is not easy, and the operation time is wasted;

[0005] 3. The tibial plateau is not a complete plane, but an uneven surface with a certain slope, while the traditional probe only has a horizontal section and an inclined section. If the tip of the probe touches the slope of the tibial plateau, it is not easy to judge the probe Whether the position is placed properly will cause the probe to have a certain inclination, resulting in inaccurate osteotomy measured by the probe

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