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Drilling locator special for collum femoris

A femoral neck and locator technology, applied in bone drill guidance, medical science, surgery, etc., can solve problems such as affecting the quality of surgery, aggravating patient damage, and increasing the difficulty of surgery.

Active Publication Date: 2012-11-14
SHANDONG HANGWEI ORTHOPEDICS MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many existing femoral neck drilling positioning devices, such as the locator produced by Switzerland "AO", which is processed with a through hole for inserting a drill sleeve on the base body. When drilling, the head of the drill sleeve rests on the large thick On the carina, the drill bit protrudes from the guide hole of the drill sleeve and then drills into the greater trochanter and the femoral neck. The entire drilling process is basically carried out based on the experience of the surgeon. The drilling has a certain degree of blindness. The phenomenon of failure occurs from time to time, prolonging the operation time, increasing the difficulty of the operation, aggravating the injury of the patient, and affecting the quality of the operation

Method used

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  • Drilling locator special for collum femoris
  • Drilling locator special for collum femoris
  • Drilling locator special for collum femoris

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, the special drill locator for the femoral neck includes a base body 1, which is provided with a central through hole; a drill sleeve 2, which is slidably installed in the central through hole, and the drill sleeve 2 There is a through hole for the drill bit to drill in or out of the guide; the first positioning pin 3, the first positioning pin 3 is curved, the needle tip of the first positioning pin 3 is bent downward, and the first positioning pin 3 The needle point of a positioning pin 3 is located directly above the axis extension line of the central through hole, and the distance between the needle point of the first positioning pin 3 and the axis extension line of the central through hole is 1 / 2 of the anteroposterior diameter of the femoral neck. Half; the tail end of the first positioning pin 3 is fixed on the upper surface of the base 1; the second positioning pin 4, the plane where the second positioning pin 4 is located is parallel t...

Embodiment 2

[0026] The second embodiment is basically the same as the first embodiment, except that the plane where the second positioning pin 4 is located is perpendicular to the plane where the first positioning pin 3 is located.

Embodiment 3

[0028] The third embodiment is basically the same as the first embodiment, except that the installation part 6 is symmetrically arranged on both sides of the base 1 and fixed integrally with the base 1 in a non-detachable manner.

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PUM

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Abstract

The invention discloses a drilling locator special for collum femoris. The drilling locator comprises a base body, a drill sleeve slidably installed in a central through hole of the base body, a bent first locating pin and a second locating pin, wherein the pin point of the first locating pin is bent downward and is positioned over the axial extension line of the central through hole and the distance between the pin point of the first locating pin and the axial extension line of the central through hole is half of the anteroposterior diameter of collum femoris; and the second locating pin andthe first locating pin are in parallel arrangement or vertical arrangement, the second locating pin is longer than the first locating pin, the pin point of the second locating pin is lower than that of the first locating pin, and the distance between the pin point of the first locating pin and the second locating pin is half of the axial diameter of collum femoris. The drilling locator ensures accurate location and successful drilling at one time and avoids drilling deflection or failure.

Description

technical field [0001] The invention relates to the technical field of orthopedic medical instruments, in particular to a special drilling positioner for femoral neck. Background technique [0002] When the greater trochanter and other parts of the human femur are fractured due to various reasons, it is necessary to drill holes through the outer side of the upper end of the femur to the femoral neck with a drill through bone surgery, and then fix it. [0003] How to drive the drill bit into the femoral neck at one time is a worldwide problem. There are many existing femoral neck drilling positioning devices, such as the locator produced by Switzerland "AO", which is processed with a through hole for inserting a drill sleeve on the base body. When drilling, the head of the drill sleeve rests on the large thick On the carina, the drill bit protrudes from the guide hole of the drill sleeve and then drills into the greater trochanter and the femoral neck. The entire drilling pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/17
CPCA61B17/175A61B17/17
Inventor 孙德修桑锡光于树义王景彦
Owner SHANDONG HANGWEI ORTHOPEDICS MEDICAL INSTR