Micro-spiral implantation device
First Claim
1. A coil implant, comprising:
- a coil configured for implantation in a vascular structure and having a lumen; and
a securing member comprising a continuous thread that (a) is coupled to a first end portion of the coil, (b) has a straight portion extending in the lumen along a longitudinal length of the coil, a first undulating portion on a first side of the straight portion, and a second undulating portion on a second side of the straight portion, opposite the first side, (c) is longer than an entire longitudinal length of the coil along which the securing member extends, and (d) is entirely within the lumen.
6 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a device for the implantation of microcoils into body cavities and blood vessels, in particular aneurysms, with said microcoils comprising wires forming a plurality of windings, at least one microcoil serving as occlusion helix for the occlusion of the body cavity or blood vessel, and the device consisting of a catheter, one or several microcoils movably arranged in longitudinal direction within the catheter and at least one securing means passing at least partially through the lumen of the occlusion helix, with said securing means being fixed in its end areas inside the microcoils. Such a fixation of the securing means is achieved in at least one end area by providing a frictional connection with the microcoil in such a manner that this connection is detachable from the microcoil when a certain tensile force acting on the securing means is exceeded.
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Citations
6 Claims
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1. A coil implant, comprising:
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a coil configured for implantation in a vascular structure and having a lumen; and a securing member comprising a continuous thread that (a) is coupled to a first end portion of the coil, (b) has a straight portion extending in the lumen along a longitudinal length of the coil, a first undulating portion on a first side of the straight portion, and a second undulating portion on a second side of the straight portion, opposite the first side, (c) is longer than an entire longitudinal length of the coil along which the securing member extends, and (d) is entirely within the lumen. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification