Drill bit guider for high tibial osteotomy

A guider and drill bit technology, which is applied in the direction of bone drill guidance, medical science, surgery, etc., can solve the problems of reducing operation efficiency, inaccurate drilling angle, affecting the shape of long groove, etc., so as to improve operation efficiency and reduce drilling Difficulty, the effect of ensuring drilling accuracy

Pending Publication Date: 2019-11-19
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual operation, the drilling angles are often inaccurate or inconsistent, and there are also multiple drilling holes that are not aligned up and down, which affects the final shape of the long groove and...

Method used

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  • Drill bit guider for high tibial osteotomy
  • Drill bit guider for high tibial osteotomy
  • Drill bit guider for high tibial osteotomy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] see Figure 1 ~ Figure 3 , the present invention includes a positioning rod 4, a positioning block 1, a sliding rod 2, a sliding rod locking bolt 3, a drilling module 9 and a universal adjustment mechanism, wherein the universal adjustment mechanism includes a rotating arm locking bolt 5, a guide sleeve 6, Drilling mold locking bolt 7, U-shaped arm 10, lifting block 11 and guide sleeve locking bolt 12.

[0020] Two positioning rods 4 are provided, and their front ends are inserted into the patient's knee joint cavity, that is, clamped between the patient's tibia and femur, and its effect is to position the whole device. The positioning block 1 is fixed on the middle part or the rear end of the positioning rod 4, two mutually parallel sliding rods 2 pass through the through holes on the positioning block 1 and are locked by the sliding rod locking bolt 3, and the sliding rod locking bolt 3 is screwed on The threaded hole on the positioning block 1 is pushed against the ...

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Abstract

The invention discloses a drill bit guider for high tibial osteotomy. The drill bit guider comprises positioning rods, a positioning block, sliding rods, sliding rod locking bolts, a drill module anda universal adjustment mechanism, the quantity of the positioning rods is two, the front ends of the positioning rods are inserted into the knee joint cavity of a patient, and the middle portions or the rear ends of the positioning rods are fixedly connected with the positioning block; the sliding rods are inserted into through holes at the positioning block, and the sliding rod locking bolts arescrewed into threaded holes at the positioning block, and prop against the sliding rods; and the drill module is close to a position, needing spacer implantation, of the proximal tibia of the patient,and is connected with the sliding rods through the universal adjustment mechanism, and the drill module is provided with a row of drill bit guiding holes corresponding to the tibia of patient. The position and the angle of tibia drilling are adjusted by the sidling rods and the universal adjustment mechanism by using a tibial platform as a positioning reference, so the drilling difficulty is greatly reduced, thereby the drilling accuracy in high tibial osteotomy is ensured, the smooth implantation of the spacer is guaranteed, the operation efficiency is effectively improved.

Description

technical field [0001] The invention relates to a drill guide used in the treatment of knee osteoarthritis by high tibial osteotomy, and belongs to the technical field of orthopedic medical devices. Background technique [0002] Knee osteoarthritis (Knee osteoarthritis, KOA) occurs in about 50% of people over the age of 50, and medial compartment KOA accounts for 74%. . Academician Zhang Yingze found through a series of studies that uneven subsidence of the tibial plateau is an important factor causing medial compartment KOA. In order to effectively treat medial compartment KOA, the latest research achievement is to implant a spacer in the proximal tibia during proximal fibular osteotomy combined with high tibial osteotomy, which can effectively correct the knee joint force line and at the same time The compression fracture or collapse of the tibial plateau can be supported and reset to realize the comprehensive treatment of knee osteoarthritis patients with excessive varu...

Claims

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Application Information

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IPC IPC(8): A61B17/16A61B17/17
CPCA61B17/1657A61B17/1732A61B17/1739
Inventor 崔蕴威王娟张迪陈伟张英泽
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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