Elastic push rod suitable for bracket-free invisible correction device

An invisible appliance and push rod technology, applied in the fields of medical science, dentistry, orthodontics, etc., can solve problems such as affecting the dentition closeness, detachment, affecting the treatment effect, etc., to achieve easy production, improve the degree of fit, Easy-to-use effects

Pending Publication Date: 2018-03-16
SICHUAN UNIV
View PDF13 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Intermaxillary traction through the prefabricated traction hook on the invisible aligner without brackets will exert a dislocation fo...

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
  • Elastic push rod suitable for bracket-free invisible correction device
  • Elastic push rod suitable for bracket-free invisible correction device
  • Elastic push rod suitable for bracket-free invisible correction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In this implementation, the common Angle Class II malocclusion correction is taken as an example for illustration. When treating Angle's Class II malocclusion, the upper teeth need a backward force and the lower teeth need a forward force. Therefore, collars matching the push rods were made at the first molars on both sides of the upper jaw (maxillary braces) without brackets and the canines of the lower jaw (mandibular braces) without brackets, respectively. After the upper and lower braces are in place, assuming that the distance between the collar at the upper first molar and the collar at the mandibular canine is 25 mm during occlusal, the length of the push rod of the elastic push rod is set to 30 mm. The specific structure and parameters are:

[0027] It consists of a push rod body 1 made of elastic material and a plug 2 of elastic material that is integrated with the push rod body at both ends of the push rod body. The plug is inflated from the far end to the ne...

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 provides an elastic push rod suitable for a bracket-free invisible correction device. The elastic push rod structurally comprises a push rod body made of an elastic material and inserting heads arranged at two ends of the push rod body, integrated with the push rod body and made of an elastic material, and each inserting head sequentially comprises an expanding head, a neck contracting relative to the head and a tail expanding relative to the neck from an end away from the push rod body to an end close to the same. It would be best if the head of each inserting head is designed to be in the shape of an expanding ball, each neck is in the shape of a column with diameter smaller than ball-shaped diameter of the corresponding head, and each tail is in the shape of a disc with diameter greater than that of the corresponding neck. When in use, two ends of the elastic push rod are respectively inserted into sleeve rings of the upper-lower jaw bracket-free invisible correction device, tension caused by traction of a conventional rubber band is changed into thrust through deformation resilience of the push rod, upper-lower jaw dentition relation can be adjusted, press-in force can be applied to teeth, retention force of the bracket-free invisible correction device can be increased, and correction effect is improved.

Description

technical field [0001] The invention relates to an auxiliary device in the process of orthodontic treatment, in particular to an auxiliary device which is suitable for invisible aligners without brackets and acts on the upper and lower dentition to apply thrust. Background technique [0002] During orthodontic treatment, elastic rubber band intermaxillary traction is a commonly used auxiliary means to improve the relative misalignment of upper and lower teeth. In the invisible orthodontic system without brackets, the common way to use intermaxillary traction is to reserve space on the appliance (transparent plastic braces) to bond metal tongue buttons on the tooth surface, or to pre-design traction hooks on the appliance. Adhesive metal buttons can only act on a single tooth, and the control force is weakened due to the reduction of the package of the appliance, and there is a risk of the buttons falling off during traction. Intermaxillary traction through the prefabricated...

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): A61C7/00
CPCA61C7/00
Inventor 李宇李涵识易俭如赵志河郑玮
Owner SICHUAN UNIV
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