Vascular access sheath with integrated return electrode
Described herein are vascular access sheaths having an integrated electrode therein. Also described are assemblies comprising the sheaths as well as methods of making and using the vascular access sheaths.
1 . A vascular access sheath comprising:
a tubular element having an inner and outer surface; and
an electrically conductive element on the inner and/or outer surface of the tubular element.
2 . The vascular access sheath of claim 1 , wherein the electrically conductive element is on the outer surface of the tubular element.
3 . The vascular access sheath of claim 1 , wherein the electrically conductive element comprises a layer of conductive material that at least partially covers the tubular element.
4 . The vascular access sheath of claim 1 , wherein the conductive layer comprises a metal.
5 . The vascular access sheath of claim 4 , wherein the metal is selected from the group of metals or alloys comprising at least one of gold, platinum, silver, tantalum, palladium, tungsten, titanium, iron, cobalt, chromium, nickel, aluminum, copper.
6 . The vascular access sheath of claim 1 , wherein the conductive layer comprises titanium-nitride, graphite.
7 . The vascular access sheath of claim 1 , wherein the conductive layer comprises a polymer.
8 . The vascular access sheath of claim 1 , wherein the electrically conductive element comprises one or more conductive elements selected from the group consisting of coatings, coils, braids, bands and wires.
9 . The vascular access sheath of claim 1 , further comprising a hydrophilic coating.
10 . An assembly comprising:
a vascular access sheath according to claim 1 ;
a delivery catheter; and
an electrolytically detachable implantable device.
11 . The assembly of claim 10 , wherein the electrolytically detachable implantable device comprises a vaso-occlusive device.
12 . The assembly of claim 11 , wherein the vaso-occlusive device comprises a vaso-occlusive coil.
13 . A method of delivering or receiving an electrical signal from a patient body, the method comprising:
introducing, into the vasculature of a subject, a vasculature access sheath according to claim 1 ; and
attaching the sheath to an electrical circuit.
14 . The method of claim 13 , where in the electrical circuit comprises an electrolytically detachable implant.
15 . The method of claim 14 , wherein the electrolytically detachable implant is deployed using a catheter that extends into the vasculature through the vasculature access sheath.
16 . The method of claim 14 , wherein the electrolytically detachable implantable device comprises a vaso-occlusive device.
17 . The assembly of claim 16 , wherein the vaso-occlusive device comprises a vaso-occlusive coil.
18 . A method of occluding a body, cavity comprising;
introducing, into the vasculature of a subject, a vasculature access sheath according to claim 1 ; and
deploying an electrolytically detachable vaso-occlusive device into the vasculature of the patient through the vascular access sheath.
19 . The method of claim 18 , wherein the body cavity is an aneurysm.