Combined medullary needle for femoral fracture fixation

A technology of femoral fractures and medullary nails, which is applied in the field of combined medullary nails for femoral fracture fixation, can solve the problems of aggravated fracture damage, stress concentration at the end of intramedullary nails, and prolongation of fracture healing period, so as to reduce damage, The effect of simplifying the treatment and relieving the pain of the patient

Pending Publication Date: 2020-11-24
杨润松 +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, interlocking intramedullary nails generally adopt an integrated structure of locking nails for static fixation at the distal and proximal ends of the intramedullary nail, which limits the axial pressure and stimulation of the fracture segment, and there is a certain dynamic shielding, resulting in Prolonged fracture healing period
Moreover, the end of the intramedullary nail is prone to stress concentration, which is easy to cause damage to the bone and the medullary needle at the penetrating part
Moreover, when using lock

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined medullary needle for femoral fracture fixation
  • Combined medullary needle for femoral fracture fixation
  • Combined medullary needle for femoral fracture fixation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 It is a schematic diagram of a partial cross-sectional structure of the combined medullary nail of the present invention; figure 2 It is a structural schematic diagram of the assembled medullary needle of the present invention; image 3 It is a schematic diagram of the structure of the connecting rod of the medullary needle. As shown in the figure: the combined medullary nail for femoral fracture fixation of the present embodiment, the combined medullary nail for femoral fracture fixation of the present invention, includes penetrating along both ends of the femur and is fixedly connected to the femoral medulla in an axial detachable manner. Two medullary needle bodies 1; the two medullary needle bodies 1 penetrate into the femoral medulla along the two ends of the femur and connect the two medullary needle bodies 1 in a way that the puncture ends are connected together, and the two medullary needles form a medullary needle, Therefore, it is only necessary to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a combined medullary needle for femoral fracture fixation. The combined medullary needle for femoral fracture fixation is characterized by comprising two medullary needle bodies which can penetrate into the femoral marrow along two ends of the femur and are detachably and fixedly connected to the interior of the femoral marrow in the axial direction. In a using process, only the near end of the medullary needle needs to be fixed through a lock pin, and the far end of the medullary needle does not need to be fixed through a lock pin, so that the usage amount of the lockpins is reduced, the damage to the bone due to the installation of the medullary needle is reduced, and the influence of the lock pins on an area near a fracture section is avoided. The combined medullary needle can be used in a combined mode and can also be used independently, thereby being high in universality.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a combined medullary nail for femoral fracture fixation. Background technique [0002] Femoral fractures in traumatic fractures are common fracture conditions, and delayed union, nonunion or malunion of fractures are prone to occur if the treated part is treated. For a long time, interlocking intramedullary nails have been used in the clinical treatment of tubular bone fractures for positioning and healing. Although intramedullary fixation combines biomechanical theory, it has firm fixation, early functional exercise, early weight bearing, prevention of bone shortening, and avoidance of axial and rotational deformities of fractures. However, interlocking intramedullary nails generally adopt an integrated structure of locking nails for static fixation at the distal and proximal ends of the intramedullary nail, which limits the axial pressure and stimulation of the fracture segment,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B17/72A61B17/78
CPCA61B17/725A61B17/74A61B2017/564
Inventor 杨润松马秋野邓毅姜海东
Owner 杨润松
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap