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

Device for implanting occlusion spirals comprising an interior securing element

A kind of screw, occlusion technology, applied in medical science, surgery, ligation, etc., can solve problems such as insufficient tensile strength

Active Publication Date: 2008-06-04
DENDRON
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The same is the case when selecting the dimensions of the safety device, wires with a large diameter, although ensuring a sufficiently high tensile strength, have disadvantages with regard to flexibility, while thinner wires are sufficiently flexible, but not sufficiently tensile of

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
  • Device for implanting occlusion spirals comprising an interior securing element
  • Device for implanting occlusion spirals comprising an interior securing element
  • Device for implanting occlusion spirals comprising an interior securing element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] FIG. 1 shows an occlusion coil 3 positioned in a berry aneurysm 12 . The occlusion coil 3 is advanced distally within the catheter 1 by means of the guide wire 4 . When correctly positioned, the occlusion coil 3 enters the cavity formed by the berry aneurysm from the distal end of the catheter 1 and fills it up. Inside the aneurysm 12, the occlusion coil 3 forms a secondary coil, which is in particular stress-induced and / or temperature-induced by the occlusion coil 3 and / or a safety device (not shown) inside the occlusion coil 3 A transformation from the martensite phase to the austenite phase can be induced. Due to the formation of the secondary loop, the aneurysm is packed particularly effectively.

[0053] As soon as the length of the closure coil 3 , which is adapted to the volume of the cavity to be filled, has been inserted into the aneurysm 12 , electrolytic separation can take place at the electrolytically erodible site 2 . To this end, a voltage is applied t...

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 relates to a device for the implantation of occlusion helixes (3) into body cavities or blood vessels, in particular aneurysms (12), with at least one occlusion helix (3) comprising a plurality of windings and being movably arranged in longitudinal direction within a catheter (1), and one securing means (9) passing at least partially through the lumen of the occlusion helix (3), with said securing means (9) being fixed in its end areas inside the occlusion helix (3) and consisting of at least two wires with each of the wires having a diameter of less than 0.02 mm. The use of a plurality of wires of relatively small diameter for the securing means (9) enables high flexibility and at the same time high tensile strength properties to be attained. In this way, two opposed characteristics can be achieved which at first glance appear to be mutually exclusive.

Description

technical field [0001] The invention relates to a device for implanting an occlusion helix in a body cavity or blood vessel, in particular an aneurysm, comprising at least one occlusion helix comprising a plurality of turns, advanceable in the longitudinal direction in a catheter and at least one A safety device that partially penetrates the inner diameter of the blocking coil, wherein the safety device is secured in the blocking coil at its respective end regions. Background technique [0002] The use of endovascular techniques for occlusion of body cavities or blood vessels such as arteries, veins, fallopian tubes or defect formation of blood vessels (eg aneurysms of blood vessels) is known in the prior art. In this case, the occlusion coil is generally inserted through the catheter by means of an intravascular guide wire and stored in the cavity to be occluded. [0003] In preparation for storage, the occlusion coil to be implanted is guided through the vasculature by me...

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): A61B17/12
CPCA61B17/12145A61B17/12113A61B17/12022A61B2017/1205A61B2017/12063
Inventor H·蒙斯塔特R·博登堡
Owner DENDRON