System for detaching an occlusive device within a body using a solderless, electrolytically severable joint
AssigneeTarget Therapeutics, Inc.
InventorsSon Gia, Hong Doan, Pete Phong Pham, Ivan Sepetka, U. Hiram Chee, Michael Mariant, David Kupiecki
Life of this patent
Estimating the term…
Abstract
A solderless sacrificial link between a detachable member which is placed at and is intended to remain at a desired site within the mammalian body and the core wire used to introduce the detachable member. The detachable member device may be one used to create emboli in the vascular system or may be of any other type deliverable into the human body and detached into an ionic aqueous environment, either for later removal or permanent placement.
Claims27
A system for use in the formation of an occlusion in a mammalian body comprising:
- a.) a sacrificial link system made up of:
- i. a core wire having a proximal end and a distal end, said core wire with an axis having a distal, discrete, sacrificial link susceptible to electrolytic disintegration in blood, said core wire not being susceptible to electrolytic disintegration proximally of said link, and
- ii. an elongate tip portion joined to and extending beyond said core wire and adapted to form said occlusion in a selected site within a mammal vasculature and coupled to the distal end of the core wire for endovascular insertion to the selected site, said elongate tip portion not being susceptible to electrolytic disintegration in blood and joined to said core wire without solder,
- b.) a power supply for providing electrical current to the core wire, and
- c.) a catheter sheath for surrounding the core wire and elongate tip portion during introduction to the selected site.
A system for use in detaching a member within a mammalian body comprising:
- a.) a sacrificial link system made up of:
- i. a core wire having a proximal end and a distal end, said core wire with an axis having a distal, discrete, sacrificial link susceptible to electrolytic disintegration in an ionic medium, said core wire not being susceptible to electrolytic disintegration proximally of said link, and
- ii. an elongate tip portion joined to and extending beyond said core wire and coupled to the distal end portion of the core wire for placement at a selected site, said elongate tip portion not being susceptible to electrolytic disintegration in ionic medium and joined to said core wire without solder,
- b.) a power supply for providing electrical current to the core wire, and
- c.) a catheter sheath for surrounding the core wire and elongate tip portion during introduction to the selected site.
Dependencies are inferred from the claim text.