Femoral nail two-point multi-dimensional positioning device and method

A multi-dimensional positioning and intramedullary nailing technology, which is applied in the field of intramedullary nailing medical devices, can solve problems such as difficult technical operations and deformation of intramedullary nails, and achieve the effects of reducing bone damage, reducing the number of nails, and reducing the difficulty of operation

Pending Publication Date: 2018-02-09
陈聚伍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems that the current intramedullary nail is difficult to operate in the treatment of femoral fractures, and the unsatisfactory nailing state will cause deformation of the intramedullary nail. A two-point multi-dimensional positioning device and positioning method for the femoral intramedullary nail are designed to achieve fast and accurate operation. Purpose

Method used

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  • Femoral nail two-point multi-dimensional positioning device and method
  • Femoral nail two-point multi-dimensional positioning device and method
  • Femoral nail two-point multi-dimensional positioning device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 The shown two-point multi-dimensional positioning device for femoral intramedullary nail 1 includes a fixing part fixedly connected with a carrier, and the carrier can be a bed frame or an instrument fixing clip or other fixing frame. Fixing parts can be used as figure 1 or Figure 5 Fixture 3 shown.

[0025] Two-dimensional adjustment mechanisms that can move vertically and longitudinally and be locked in the front and rear groups are installed on the fixed part. Two front and rear universal joints are respectively arranged at the ends of the front and rear two-dimensional adjustment mechanisms, and the free swinging parts of each universal joint are respectively provided with adjustment shaft holes, and the front and rear adjustment shaft holes are fixed and installed. There is an adjusting shaft sleeve 215. The intramedullary nail 1 is set and adjusted in the sleeve 215.

[0026] Specifically, in figure 1 Among them, the two-dimensiona...

Embodiment 2

[0029] Embodiment 2: On the basis of Embodiment 1, the two-dimensional adjustment mechanism includes a front fixed column 201 and a rear fixed column 202 respectively installed on the upper side of the front and rear two fixed parts, see figure 2 As shown, the front lifting sliding sleeve 203 and the rear lifting sliding sleeve 204 are respectively sleeved on the outer sides of the front fixing column 201 and the rear fixing column 202, and the front lifting sliding sleeve 203 and the rear lifting sliding sleeve 204 are respectively provided with longitudinal holes and installed longitudinal adjustment Rod 207, front lifting sliding sleeve 203 and rear lifting sliding sleeve 204 are provided with front lifting locking pin 205 and rear lifting locking pin, front vertical adjustment locking pin and rear vertical adjustment locking pin respectively; The rear universal joints are installed on the ends of the front and rear longitudinal adjustment rods 207 respectively.

Embodiment 3

[0030] Embodiment 3: see image 3 As shown, on the basis of Embodiment 1, the two-dimensional adjustment mechanism includes a fixed vertical sleeve arranged on the fixed part, and a movable column is set inside the fixed vertical sleeve and a lifting locking pin is set; the upper end of the movable column is connected with a longitudinal adjustment sleeve. The longitudinal adjustment sleeve is covered with a longitudinal adjustment rod and provided with a longitudinal adjustment locking pin; the universal joint is installed at the end of the corresponding longitudinal adjustment rod.

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Abstract

The invention discloses a femoral nail two-point multi-dimensional positioning device and method. A front universal joint and a rear universal joint are arranged at the adjusting tail end of a front multi-dimensional adjusting mechanism and the adjusting tail end of a rear multi-dimensional adjusting mechanism. The free swing part of each universal joint is provided with an adjusting shaft hole. The front adjusting shaft hole and the rear adjusting shaft hole are each internally fixedly provided with an adjusting shaft sleeve. A femoral nail is sleeved with the adjusting shaft sleeves. By vertically or longitudinally adjusting the front multi-dimensional adjusting mechanism and the rear multi-dimensional adjusting mechanism, the femoral nail can be adjusted at any angle and can be correctly nailed in by two times of operation at most, the nailing accuracy is improved, the number of nailing times is reduced, and the device has the advantages of being rapid and accurate. Thus, the operation difficulty of a doctor is reduced, and the degree of damage to bones of a patient is reduced.

Description

Technical field: [0001] The invention belongs to the technical field of orthopedics and involves intramedullary nail medical appliances, and in particular relates to a two-point multi-dimensional positioning device and a positioning method for a femoral intramedullary nail. Background technique: [0002] Intramedullary nailing is a minimally invasive treatment for femoral fractures. At present, intramedullary nails, steel plates, and external fixators are usually used for surgical treatment of long tubular bone shaft fractures. In intramedullary nailing, the common The inner nail is equipped with distal and proximal locking nail holes, so that the locking nail can pass through the long tube cortex and the distal and proximal locking nail holes on the intramedullary nail to achieve the effect of locking and align the fracture fragments. , fixation, and support a certain gravity function to facilitate bone callus growth and fracture healing. To use this type of intramedullary...

Claims

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Application Information

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IPC IPC(8): A61B17/72A61B17/92
CPCA61B17/7241A61B17/92
Inventor 陈聚伍
Owner 陈聚伍
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