Fast detaching electrically isolated implant
First Claim
1. An implant assembly for placement of an implant in the human body comprising:
- an implant, a wire having an electrolytically severable joint, the wire attached to a proximal end of the implant, the electrolytically severable joint being relatively more susceptible to electrolysis in an ionic solution than is the implant, and a wire anchoring member disposed distally of the joint and attached to the implant, wherein the implant is electrically isolated from the electrolytically severable joint.
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Accused Products
Abstract
This is an implant for placement in the human body and an assembly for so placing that implant. Most desirably, it is an implant for use in the vasculature of the human body and is used to occlude some space in that vasculature as a portion of a treatment regimen. The implant itself is preferably a component of a deployment device using an electrolytically severable joint. The implant is electrically isolated from the electrolytically severable joint by a highly resistive or insulative layer. Such isolation and minimization of the conductive pathway from the placement apparatus to the body'"'"'s fluids appears to enhance the susceptibility of the electrolytic joint to quick erosion and detachment of the implant from the deployment media. Although the implant itself is preferably a vaso-occlusive device, it may instead be a stent, a vena cava filter, or other implant which may be installed in this manner.
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Citations
24 Claims
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1. An implant assembly for placement of an implant in the human body comprising:
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an implant, a wire having an electrolytically severable joint, the wire attached to a proximal end of the implant, the electrolytically severable joint being relatively more susceptible to electrolysis in an ionic solution than is the implant, and a wire anchoring member disposed distally of the joint and attached to the implant, wherein the implant is electrically isolated from the electrolytically severable joint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An implant assembly for placement of an implant in the human body comprising:
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a vaso-occlusive implant, a wire having an electrolytically severable joint, the wire attached to a proximal end of the implant, the electrolytically severable joint being relatively more susceptible to electrolysis in an ionic solution than is the implant, an anchoring member disposed distally of the joint and attached to the implant via a stretch resistant member, wherein the implant is electrically isolated from the electrolytically severable joint. - View Dependent Claims (16, 17, 18, 19)
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20. An implant assembly for placement of an implant in the human body comprising:
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a vaso-occlusive coil, a wire having an electrolytically severable joint, the wire affixed to a proximal end of the coil, the electrolytically severable joint being relatively more susceptible to electrolysis in an ionic solution than is the coil, and an anchoring member disposed distally of the joint and affixed to the coil, the anchoring member comprising a loop affixed to a stretch resistant member, the stretch resistant member affixed to the coil, wherein the coil is electrically isolated from the electrolytically severable joint. - View Dependent Claims (21, 22, 23, 24)
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Specification