Two-part intramedullary nail fracture internal fixation system

A fixation system and intramedullary nail technology, which is applied in the field of medical devices, can solve the problems of no corresponding disclosure, and achieve the effects of convenient operation, promotion of bone tissue healing, and definite fixation effect

Inactive Publication Date: 2018-05-25
SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no corresponding disclosure about a technical solution that promotes bone tissue healing by implanting through the broken end of the fracture, is convenient to operate during the operation, can effectively fix the fracture, and enables the patient to perform effective functional exercises earlier.
[0008] In summary, there is a need for a two-part intramedullary nail system that can be implanted through the broken end of the fracture, promote bone tissue healing, be easy to operate during the operation, can effectively fix the fracture, and enable the patient to perform effective functional exercises earlier. A two-part intramedullary nail system has not been reported

Method used

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  • Two-part intramedullary nail fracture internal fixation system
  • Two-part intramedullary nail fracture internal fixation system
  • Two-part intramedullary nail fracture internal fixation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Please refer to figure 1 , figure 1 It is a structural block diagram of a two-part intramedullary nail fracture internal fixation system of the present invention. A two-part intramedullary nail fracture internal fixation system, the intramedullary nail fracture internal fixation system includes an intramedullary nail A component 1, an intramedullary nail B component 2, an intramedullary nail A component installation system 6, and a fracture assisting device 7.

[0062] Please refer to figure 2 , figure 2 It is a schematic diagram of the assembly state of the intramedullary nail A part 1 and the intramedullary nail B part 2. The intramedullary nail part A 1 and the intramedullary nail part B 2 are detachably connected; the intramedullary nail part A 1 and the intramedullary nail part B 2 are both equipped with fixing screws 3 .

[0063] Please refer to image 3 , image 3 It is a structural schematic diagram of part A of the intramedullary nail. The intramedulla...

Embodiment 2

[0078] Please refer to Figure 7 , Figure 7 It is a schematic structural diagram of the detachable connection method in Embodiment 2. This embodiment is basically the same as Embodiment 1, the difference is that the intramedullary nail a connecting part 12 in this embodiment is provided with a bayonet 121, and the intramedullary nail a connecting part 12 is a nut structure; The b-connecting part 21 of the intramedullary nail is provided with a b bayonet 211, and the b-connecting part 21 of the intramedullary nail is a threaded structure.

[0079] In this embodiment, the intramedullary nail a connecting part 12 and the intramedullary nail b connecting part 21 are threadedly connected, and the threaded connection enables the intramedullary nail A part 1 and the intramedullary nail B part 2 to be effectively fixed and not easy to fall off; The a bayonet 121 and the b bayonet 211 are inserted into the locking part, which can further fix the intramedullary nail A part 1 and the ...

Embodiment 3

[0081] Please refer to Figure 8 , Figure 8 It is a schematic structural diagram of the detachable connection method in Embodiment 3. This embodiment 1 is basically the same as embodiment 1, the difference is that the intramedullary nail a connecting part 12 in this embodiment is provided with a bayonet 121, and the intramedullary nail a connecting part 12 is a fixed nut structure ; The b-connecting part 21 of the intramedullary nail is provided with a b bayonet 211, and the b-connecting part 21 of the intramedullary nail is a movable thread structure.

[0082] What needs to be explained in this embodiment is: the length of the threaded connection section on the connecting part 12 of the intramedullary nail a and the connecting part 21 of the intramedullary nail b is adjustable, and different connections produce different internal fixation forces, and Different types of fractures in different patients require different internal fixation forces. According to the method of th...

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PUM

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Abstract

The invention relates to a two-part intramedullary nail fracture internal fixation system. The intramedullary nail fracture internal fixation system comprises an intramedullary nail part A and an intramedullary nail part B, and the intramedullary nail part A and the intramedullary nail part B are detachably connected with each other and provided with fixing screws. The two-part intramedullary nailfracture internal fixation system has the advantages that the system is implanted through a fracture broken end, bone tissue healing is promoted, the structure is simple, the design is reasonable, the surgical operation is convenient, the fracture part can be effectively fixed, and a patient has effective functional exercise earlier.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an intramedullary nail fixation system for long bone shaft fractures. Background technique [0002] Fractures of the long bones of the extremities are relatively common. After the fracture occurs, the function of the limbs is greatly affected. Most of the unstable fractures need to be treated by surgery. The purpose of treatment is to restore the continuity of the fracture and achieve a strong fixation that allows early activities. Fixation systems include plate / screw systems and intramedullary nail systems. [0003] In clinical application, the existing internal fixation systems have the following limitations. [0004] During the installation of the plate / screw system, there is a high requirement for the exposure of the surgical area, and the damage to the surrounding structures of the fracture is relatively large. risk of non-healing etc. [0005] The invention of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72
CPCA61B17/72
Inventor 谢铮林浩东侯春林
Owner SECOND AFFILIATED HOSPITAL SECOND MILITARY MEDICAL UNIV
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