Provided herein are catheter assemblies with detachment means for delivering implants. A method for coil embolization using a catheter includes: inserting a catheter into a patient intravenously or intraarterially; navigating the catheter to an aneurysm, the catheter defining an outer wall; placing a tip of the catheter at an opening of the aneurysm; delivering into the aneurysm, via pusher wire, through a lumen of the catheter, a coil; determining a user defined detachment point at which a distal coil segment of the coil should be detached from the coil; aligning the user defined detachment point of the coil with a designated detachment zone at the tip of the catheter; and toggling a laser source connected to the embedded optical fiber, thereby detaching the distal coil segment from the coil via an embedded laser beam emitted from the optical fiber at the designated detachment zone at the tip of the catheter.

An embodiment includes a system comprising: a catheter; an optic fiber having a long axis and a short axis that is orthogonal to the long axis; first and second radiopaque elements coupled to the optic fiber; a first wire coupled to the optic fiber and extending from the first radiopaque element to the second radiopaque element; a fluid; wherein (a)(i) the first wire wraps at least partially around an exterior surface of the optic fiber; (a)(ii) an outer diameter of the first wire and an outer diameter of the optic fiber are collectively less than an inner diameter of the catheter, and (a)(iii) the first wire is configured to center the optic fiber within the catheter within a plane orthogonal to the long axis.

The introducer sheath can be loaded onto a vasoocclusive device after removal of the vasoocclusive device from a microcatheter, to permit the vasoocclusive embolic coil assembly to be used again during a clinical procedure. The sheath includes a hollow, elongated tubular member with a longitudinal slot formed in the upper wall of the elongated tubular member and extending along the length of elongated tubular member. The upper wall of the elongated tubular member adjacent to the slot has an angled configuration to accept the vasoocclusive device. The sheath may include wing members extending outwardly from the angled configuration on the outside surface of the hollow, elongated tubular member to facilitate insertion of the vasoocclusive device into the sheath. The elongated tubular member may also consist of a segment with no slot attached to a flexible pusher member to facilitate initiation of loading of the vasoocclusive device into the sheath.

Provided herein are catheter assemblies with detachment means for delivering implants. A method for coil embolization using a catheter includes: inserting a catheter into a patient intravenously or intraarterially; navigating the catheter to an aneurysm, the catheter defining an outer wall; placing a tip of the catheter at an opening of the aneurysm; delivering into the aneurysm, via pusher wire, through a lumen of the catheter, a coil; determining a user defined detachment point at which a distal coil segment of the coil should be detached from the coil; aligning the user defined detachment point of the coil with a designated detachment zone at the tip of the catheter; and toggling a laser source connected to the embedded optical fiber, thereby detaching the distal coil segment from the coil via an embedded laser beam emitted from the optical fiber at the designated detachment zone at the tip of the catheter.

A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.

A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.

A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.

A system for delivering an implant within a patient is disclosed. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact each other, thereby resulting a notable change in resistance in the circuit supplying the heater coil with electricity. A core wire terminates prior to the distal end of the device, allowing for greater flexibility.