Device delivery system
First Claim
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1. An embolic coil delivery system comprising:
- a catheter including a first contact and a second contact;
an embolic coil including two segments separated by a link;
the link including a proximal conductive sleeve, a distal conductive sleeve, and a monofilament between the proximal and the distal conductive sleeves;
wherein a circuit is completed when the catheter'"'"'s first and second contacts are aligned in electrical communication with the link'"'"'s proximal and distal conductive sleeves, and wherein the monofilament is degradable in response to the circuit being completed such that the two segments of the embolic coil detach from each other in response to the monofilament degrading.
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Accused Products
Abstract
A catheter system utilizing one or more sensors is described. The catheter can be used as part of an embolic coil system, guidewire system, or combined embolic coil/guidewire system where the devices interact with the catheter system. A variable detachment embolic coil system and guidewire system are also described.
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Citations
18 Claims
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1. An embolic coil delivery system comprising:
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a catheter including a first contact and a second contact; an embolic coil including two segments separated by a link;
the link including a proximal conductive sleeve, a distal conductive sleeve, and a monofilament between the proximal and the distal conductive sleeves;wherein a circuit is completed when the catheter'"'"'s first and second contacts are aligned in electrical communication with the link'"'"'s proximal and distal conductive sleeves, and wherein the monofilament is degradable in response to the circuit being completed such that the two segments of the embolic coil detach from each other in response to the monofilament degrading. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An embolic coil delivery system comprising:
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a catheter comprising an interior passage; a distal electrical contact and a proximal electrical contact that are both located within the interior passage of the catheter and near a distal end of the catheter;
the distal electrical contact and the proximal electrical contact being in electrical communication with a proximal end of the catheter;an embolic coil comprising a first coil segment and a second coil segment; a coil link connected between the first coil segment and the second coil segment;
the coil link comprising;a first coil electrical contact exposed on an outer surface of the coil link; a second coil electrical contact exposed on an outer surface of the coil link; a heater connected to the first coil electrical contact and the second coil electrical contact; and
,a filament fixed to a distal portion of the coil link and to a proximal portion of said coil link; wherein the first coil electrical contact and the second coil electrical contact are spaced apart so as to contact the distal electrical contact and the proximal electrical contact, respectively, simultaneously; and wherein applying current through the first coil electrical contact, the distal electrical contact, the second coil electrical contact, and the proximal electrical contact increases the temperature of the heater to break the filament and thereby sever the coil link. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification