Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Improved tension bone trabecula reconstruction type proximal femur intramedullary nail

A technique for proximal femur and trabecular bone, applied in the field of improved tension trabecular reconstruction proximal femoral intramedullary nails, to avoid mutual entanglement and entanglement and affect the operation and fixation effect, increase stability, and resist traction force-enhancing effect

Pending Publication Date: 2021-04-16
SHANGHAI TONGJI HOSPITAL
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant report about an improved tension trabecular bone reconstruction type proximal femoral intramedullary nail that can enhance the anti-rotation and varus stress of the head and neck bone and achieve good stability.

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
  • Improved tension bone trabecula reconstruction type proximal femur intramedullary nail
  • Improved tension bone trabecula reconstruction type proximal femur intramedullary nail
  • Improved tension bone trabecula reconstruction type proximal femur intramedullary nail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] An improved tension trabecular bone reconstruction type proximal femoral intramedullary nail of the present invention comprises a main nail body 1, a reconstruction device 2 and a locking device 3;

[0048] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings:

[0049] Please see attached Figure 1-4 , figure 1 It is a schematic diagram of the structure of the anterolateral side of the main nail of the modified tension trabecular bone reconstruction type proximal femoral intramedullary nail of the present invention, figure 2 It is a schematic diagram of the structure of the anteromedial side of the main nail of the modified tension trabecular bone reconstruction type proximal femoral intramedullary nail of the present invention, image 3 It is a schematic diagram of the internal structure of the through hole of the tension t...

Embodiment 2

[0058] Please see attached Figure 10 , Figure 10 It is a schematic diagram of the through-hole structure of another modified tension trabecular bone reconstruction type proximal femoral intramedullary nail of the present invention. This embodiment is basically the same as Embodiment 1, except that the opening at the end of the through hole 11 of the reconstruction device in this embodiment has an oblique internal thread structure, and the shape of the external thread structure 33 at the front end of the connecting part 32 in this embodiment (Fig. (not shown in ) is matched with the oblique internal thread structure at the end of the through hole 11 of the reconstruction device; the opening at the end of the through hole 11 of the reconstruction device is designed as an oblique internal thread structure. Since the through hole is vertebral, the anchor When the nail 21 is driven in, it can be operated universally (screwed in different angle directions), and the direction of d...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an improved tension bone trabecula reconstruction type proximal femur intramedullary nail. The improved tension bone trabecula reconstruction type proximal femur intramedullary nail comprises a main nail body, a reconstruction device and a locking device, a reconstruction device through hole is transversely formed in the near section of the main nail body; and the reconstruction device comprises an anchor and a titanium cable. The titanium cable is fixedly connected with the tail end of the anchor; the locking device comprises a locking head and a connecting part; and the two ends of the locking head are of a conical opening structure. The surface of the front end of the connecting part is provided with an external thread structure, and the tail end is of a hollow inner hexagonal structure. A conical hole structure matched with the tail end of the locking head is further arranged in the center of the connecting part. The improved tension bone trabecula reconstruction type proximal femur intramedullary nail has the advantages that the tension bone trabecula of the neck of the femur is reconstructed, and the elastic fixing effect is achieved; meanwhile, the anti-rotation and anti-introversion stress of the femoral head and neck bone block can be enhanced, and good stability can be achieved; and the driving direction of the anchor can be freely adjusted according to different femoral neck diameters of a patient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an improved tension trabecular bone reconstruction type proximal femoral intramedullary nail. Background technique [0002] Trabecular bone is the extension of cortical bone in cancellous bone, that is, trabecular bone is connected with cortical bone, and forms an irregular three-dimensional network structure in the bone marrow cavity. Trabecular bone is the main supporting structure of the proximal femur. According to its distribution, it can be divided into pressure trabecular and tension trabecular, which is the extension of the cortical bone of the proximal femur in the cancellous bone. Therefore, it plays an important role in the fixation of fractures. The internal fixation systems currently used in clinical practice are mostly of the type of support reconstruction, that is, the reconstruction of pressure trabeculae, but for unstable fractures, only restoration and r...

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): A61B17/72A61B17/76
Inventor 王欣程黎明袁锋
Owner SHANGHAI TONGJI HOSPITAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com