Unlock instant, AI-driven research and patent intelligence for your innovation.

System for attaching a piece of osteosynthesis equipment

A technique of osteosynthesis and bone tissue, applied in mechanical equipment, surgery, application, etc., to ensure guidance and increase rigidity

Active Publication Date: 2015-07-22
TECHNI
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Absorbable or not, all of these polymers have one major disadvantage: they are radio transparent
One difficulty for the surgeon, then, is the fine-grained assessment of the insertion length sufficient for bicortical fixation without the screw (known as a bicortical screw) protruding excessively from the bone surface

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
  • System for attaching a piece of osteosynthesis equipment
  • System for attaching a piece of osteosynthesis equipment
  • System for attaching a piece of osteosynthesis equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] Description of the fixing system

[0050] Figure 1 and figure 2A screwdriver 1 and a screw 12 intended to be screwed into bone tissue 16 housing an osteosynthesis instrument (in this case a plate 15 ) are shown. The screwdriver 1 and the screw 12 form part of a system according to the invention for the fixation of osteosynthesis instruments. The screw 12 has a threaded shaft 13 intended to be inserted through an osteosynthesis plate 15 and bone tissue 16 by screwing. The threaded shaft is continued by a tail extension carrying the tail end 14a.

[0051] The screwdriver 1 comprises a cylindrical handle 3 extending the length of the screwdriver 1 . The handle 3 is equipped with a holding element 2, which can have various shapes, eg handle or T-shaped. The handle 3 comprises a shaft 9 extending at its end facing the holding element 2 and intended for engagement with the holding element 2 . It is possible to motorize the screwdriver 1 by adding to the screwdriver 1 a ...

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 concerns a system for attaching a piece of osteosynthesis equipment against a bone tissue (16), the system comprising at least i) a screw (12) comprising a threaded barrel (13) and a back end (14a), and ii) a screwdriver (1) comprising a handle (3) extended by a rod (5) of which the front end includes an end-piece (7) capable of engaging with the back end (14a) of the screw. The screw is made from a material comprising a polymer. The screwdriver is provided with a guide member (4) for guiding the screw linked to the rod (5), a portion of the guide member (4) protruding in front of the end-piece (7) of the screwdriver and extending along or around a portion of the screw so as to guide said screw in axial translation, said guide member having a front end (4a) forming an abutment of the screwdriver against the surface of said piece of osteosynthesis equipment on completion of a predefined depth of screwing of the screw into the bone tissue. The guide member can be set at a chosen length of extension, corresponding to a depth of insertion of the screw, previously defined, for example, using a depth gauge. After insertion, the screw can be severed, and optionally fused with the piece of equipment it is attaching, in order to reinforce the locking of same.

Description

technical field [0001] The present invention is in the field of surgical instruments, and more particularly, to fixation systems used in bone repair. It relates to a system for fixing an osteosynthesis instrument against bone tissue comprising at least a fastening screw and associated equipment comprising a screwdriver. Background technique [0002] Osteosynthesis includes all methods that make it possible to keep two bony structures in place after a fracture, arthrodesis, or osteotomy. For example, osteosynthesis is used when reduction (ie, reunion of bone ends) cannot be accomplished by external manipulation or when two fragments are unstable. It uses various instruments for holding two pieces of bone (or bone and implant) together, such as plates, rods, nails, screws, pins, staples, and the like. The goal is to achieve consolidation of the bone in an anatomical position. [0003] Osteosynthesis with the aid of instruments such as plates tightened by one or more screws ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88A61B19/00
CPCA61B17/8875A61B2019/306A61B19/30A61B17/8891A61B90/03A61B2090/036F04C2270/0421
Inventor 阿兰·莱纳德卡罗尔·莱纳德西里尔·森德奥利维尔·利尼翁戈蒂埃·哈利宾奴何迪妮·萨哈乌依
Owner TECHNI