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Device and method for establishing an anchorage in tissue

A tissue and anchoring technique used in the medical field

Active Publication Date: 2015-07-08
WOODWELDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, liquefaction occurs exactly where the anchor is intended, thereby limiting the amount of thermoplastic material to a minimum

Method used

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  • Device and method for establishing an anchorage in tissue
  • Device and method for establishing an anchorage in tissue
  • Device and method for establishing an anchorage in tissue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] figure 1 A device according to a preferred embodiment of the present invention is shown in five successive stages (a) to (e) of an anchoring method for establishing an anchor within tissue using the device. The device comprises a tool 1 and a sheath 2 with holes.

[0050] Typically, the perforated sheath 2 is tubular and the sheath perforation 2.1 may be a separate channel through the sheath wall (as shown), but may also be an area of ​​the sheath wall made of a porous material that Materials such as sintered or foamed materials. The perforation is to provide a passage through the sheath wall, at least part of which is preferably no less than a few tenths of a millimeter in diameter, more preferably no less than 0.3mm. The sheath is open at its proximal end 2.2 and is placed within the tissue opening for the anchoring procedure. For this arrangement, the sheath may include a sharpened or protruding distal end (not shown) and / or a radially projecting and axially exten...

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PUM

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Abstract

A perforated sheath is anchored in a tissue opening with the aid of a tool, wherein the anchorage is achieved with the aid of mechanical vibration and a material which is liquefiable by the vibration. The tool includes a vibrating element and a counter element. Distal portions of both elements are introduced into the sheath to be in contact with each other at an interface. The vibrating element is connected to a vibration source and the vibrating element and the counter element are held against each other for effecting liquefaction of the liquefiable material at the interface. Under the effect of the force applied to the vibrating and counter element for holding them against each other, the liquefied material flows from the interface through the sheath perforation and penetrates the tissue.

Description

technical field [0001] The present invention relates to the field of medical technology and relates to a device and a method for establishing anchorage in tissue, especially in hard tissue such as bone tissue. Background technique [0002] Devices that require anchoring into bone tissue can range from fasteners to endoprostheses. Fasteners can be used, for example, to secure sutures or wires in bone to reattach tendons, ligaments, or bone fragments to bones that have been torn or severed from them, thereby preventing possible rupture, dislocation Either dissected bone or to fix the plate and rod relative to the bone that needs to be stabilized to each other, or to attach the drug delivery component to the bone. Endoprostheses replace local tissues, such as joint prostheses, resurfacing implants or dental implants. [0003] There are many known methods for anchoring a given device into bone tissue, some of the most common methods are: installing a wire in the device and anc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/68A61B17/04
CPCA61B2017/0422A61B17/809A61B17/864A61B2017/042A61F2210/0071A61B2017/0409A61B2017/00411A61B2017/0424A61B2017/044A61B17/686A61B17/0401A61B2017/00955A61F2002/30065A61B17/90A61B17/00491A61B17/8811A61B17/8819A61B17/8836A61B2017/005A61B2017/8813A61B2017/883
Inventor M·莱曼A·米勒U·韦伯P·塞勒
Owner WOODWELDING