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

Internal fixing device for treating femoral neck fracture

A femoral neck fracture and fixation device technology, applied in the field of medical devices, can solve problems such as slow healing, slow wound recovery, and large trauma, and achieve good biomechanical strength, small bone destruction, and small surgical injuries

Pending Publication Date: 2022-03-11
THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main internal fixation method is the DHS dynamic hip screw system, which has good mechanical stability, but the operation is complicated, the trauma is large, and the operation time is long; the other internal fixation with three hollow screws is a minimally invasive surgery, but Poor mechanical stability, unable to go to the ground as soon as possible after operation, and longer recovery time; FNS femoral neck dynamic cross nail system is also used for internal fixation. Compared with DHS, FNS is easier to operate, with smaller incisions and less trauma to bone , internal fixation occupies a small space, and is more suitable for patients with small femoral neck diameters; compared with three hollow nails, it has higher biomechanical strength; but when using FNS for internal fixation, an incision is still required, and the medical staff need to make an incision Specify the small opening to expose the bone first and then fix it on the bone
Once there is an incision, it is easy to cause wound infection, slow wound recovery and other problems, which will affect the satisfaction of patients after surgery. If the patient is older, the incision healing speed will be slower, which will significantly increase the risk of the wound.

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
  • Internal fixing device for treating femoral neck fracture
  • Internal fixing device for treating femoral neck fracture
  • Internal fixing device for treating femoral neck fracture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Please refer to figure 1 , an internal fixation device for treating femoral neck fractures in this embodiment, which includes a main fixture 1 and an auxiliary fixture; A first through hole 11 for accommodating the first fixer, a second through hole 12 for accommodating the second fixer and a second through hole 12 for accommodating the third fixer are set at the proximal end of the main fixer 1 The third through hole 13; the vertical centerline of the first through hole 11 coincides with the axis of the main fixture 1; the second through hole 12 and the third through hole 13 are arranged symmetrically with respect to the axis of the main fixture 1; in the front view state , the projections of the second fixture and the third fixture are coincident, but the projections of the second fixture and the third fixture are not coincident with the projections of the first fixture; The projections of the first fixture and the third fixture do not coincide with each other, and t...

Embodiment 2

[0044] Please refer to Figure 1-Figure 8 with Figure 10 , on the basis of Embodiment 1, this embodiment performs the following specific settings on the first fixing member, the second fixing member and the third fixing member: the second fixing member and the third fixing member are arranged symmetrically with respect to the first fixing member; This centrosymmetric setting effectively realizes central fixation and ensures fixation stability.

[0045] In the front view state, the projections of the second through hole 12 and the third through hole 13 coincide, and the axis 111 of the first through hole 11 and the axis 2 121 of the second through hole 12 are parallel to each other, forming a multi-plane fixation and ensuring the fixation Effect. In the front view state, the axis 111 of the first through hole 11 forms an angle with the axis 3 14 of the main fixture 1, the axis 111 is parallel to the femoral neck, and the angle range between the axis 111 and the axis 3 14 is ...

Embodiment 3

[0052] Please refer to Figure 5 , Figure 11-13 , on the basis of Embodiment 1 or 2, the present embodiment performs the following specific settings on the main fixture 1: the main fixture 1 includes a first section 15 and a second section 16, the first section 15 is the proximal end, and the second section 16 is the distal end; the first section 15 is provided with a first fixing piece, a second fixing piece and a third fixing piece. The diameter of the second section 16 is smaller than that of the first section 15, which is more compact, easy to fix, and less damaging to bone.

[0053] There is no transition between the first segment 15 and the second segment 16, as in Figure 12 or, between the first section 15 and the second section 16, there is a partial tapered transition, such as Figure 11 shown; or, the first segment 15 and the second segment 16 between the overall tapered transition, such as Figure 13 As shown; the upper end of the main fixture 1 is provided wi...

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
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an internal fixing device for treating femoral neck fracture. The internal fixing device comprises a main fixing object and an auxiliary fixing object. The auxiliary fixture comprises a first fixing piece, a second fixing piece and a third fixing piece which are positioned at the near end of the main fixture; a first through hole, a second through hole and a third through hole which are used for accommodating the first fixing piece, the second fixing piece and the third fixing piece are formed in the near end of the main fixing object; the vertical center line of the first through hole coincides with the axis of the main fixing object. The second through hole and the third through hole are symmetrically arranged relative to the axis of the main fixture; in the foresight state, the projection of the second fixing piece coincides with the projection of the third fixing piece, but the projection of the second fixing piece and the projection of the third fixing piece do not coincide with the projection of the first fixing piece. In the top view state, the projections of the first fixing piece, the second fixing piece and the third fixing piece do not coincide with one another, and the second fixing piece and the third fixing piece are located on the two sides of the first fixing piece respectively.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an internal fixation device for treating femoral neck fractures. Background technique [0002] Femoral neck fracture is a common type of fracture in clinic. It is mainly caused by low-energy injuries in middle-aged and elderly patients and high-energy injuries in young patients. social problems. [0003] At present, the main internal fixation method is the DHS dynamic hip screw system, which has good mechanical stability, but the operation is complicated, the trauma is large, and the operation time is long; the other internal fixation with three hollow screws is a minimally invasive surgery, but Poor mechanical stability, unable to go to the ground as soon as possible after operation, and longer recovery time; FNS femoral neck dynamic cross nail system is also used for internal fixation. Compared with DHS, FNS is easier to operate, with smaller incisions and ...

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): A61B17/74A61B17/68A61B17/88A61B17/90
CPCA61B17/742A61B17/686A61B17/88A61B17/8897
Inventor 耿林丹陈宇峰王鹏程任栋光亮康博洋
Owner THE THIRD HOSPITAL OF HEBEI MEDICAL UNIV
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