Thrombus removal system and process
AssigneeNexGen Medical Systems, Incorporated
InventorStephanos Finitsis
Life of this patent
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Abstract
A device captures and assists in the removal of a thrombus in arteries, even in small arteries. The device uses a soft coil mesh to engage the surface of a thrombus, and a guidewire is used to retract the soft coil mesh with the captured thrombus. The soft coil is formed by an elongated microcoil element that forms the helical elements of a macrocoil element. The microcoil element provides a relatively elastic effect to the helical element forming the macrocoil and allows for control of gripping forces on the thrombus while reducing non-rigid contact of the device with arterial walls.
Claims17
A medical device for removing a thrombus from a blood vessel, comprising:
- a macrocoil thrombus engaging component having a length with a proximal end and a distal end, the length of the macrocoil comprising microcoils that allow the length of the macrocoil to be extendable;
- a first wire capable of providing force on the distal end of the macrocoil;
- a second wire capable of providing force on the proximal end of the macrocoil;
- the macrocoil being capable of retracting to a maximum thickness of less than 0.001 mm when extended by the first wire and the second wire, and the microcoil being expandable to a width of at least 0.002 mm when distended by relative movement between the first wire and second wire.
Dependencies are inferred from the claim text.