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US 2009/0222003 A1Published application
Vein closure and injection kits and methods
AssigneeMayo Foundation for Medical Education and Research
InventorClark C. Otley
Life of this patent
Estimating the term…
Abstract
Kits, apparatus, devices and methods for treating varicose veins caused by an incompetent venous junction (e.g., the saphenofemoral and/or saphenopopliteal junctions) are disclosed. The kits may include a sheath, a vein closure device, and an injection device. Alternatively, a vein closure device may include an integral injection channel and injection device. Methods may include injecting a vein with a sclerosing agent through a needle that extends in a direction that is not aligned with a longitudinal axis of a sheath or shaft.
Claims25
A vein closure and injection kit comprising:
- an elongated sheath comprising a proximal end and a distal end defining a longitudinal axis extending along the elongated sheath from the proximal end to the distal end, the elongated sheath comprising:
- a main channel extending along the longitudinal axis from the proximal end to the distal end of the elongated sheath, wherein the main channel comprises an entry port at the proximal end of the elongated sheath and an exit port at the distal end of the elongated sheath, wherein a device extending out of the main channel from the exit port is directed along the longitudinal axis;
- an injection channel extending from the proximal end of the elongated sheath towards the distal end of the elongated sheath, wherein a proximal portion of the injection channel extends along the longitudinal axis to a bend at which the injection channel defines an injection direction that is not aligned with the longitudinal axis, whereby an injection device extending out of the injection channel from an injection port is directed along the injection direction;
- a vein closure device operable through the main channel of the elongated sheath, wherein the vein closure device comprises an actuator that protrudes from the entry port of the main channel and a closure mechanism protruding from the exit port of the main channel during closure of a vein using the vein closure device;
- and
- an injection device operable through the injection channel of the elongated sheath, wherein the injection device comprises a needle protruding from the injection port of the injection channel during injection into a vein.
3 more elements
A vein closure apparatus comprising:
- a shaft comprising a proximal end and a distal end, wherein a longitudinal axis extends between the proximal end and the distal end of the shaft;
- movable jaws located at the distal end of the shaft;
- an actuator located at the proximal end of the shaft, the actuator operably connected to the move the movable jaws between an open configuration and a closed configuration in which a vein is secured between the jaws;
- an injection device comprising an injection needle extending out of an injection port formed in the shaft proximate the distal end of the shaft, wherein the injection needle enters the interior of the shaft proximate the proximal end of the shaft, and wherein the injection needle exits the shaft at an injection direction that is not aligned with the longitudinal axis.
1 more element
A method of treating saphenofemoral junction incompetence, the method comprising:
- advancing a distal end of an elongated sheath to a position proximate an incompetent saphenofemoral junction using a dissecting instrument located within a main channel of the elongated sheath;
- advancing a vein closure device through the main channel to the distal end of the elongated sheath;
- grasping the saphenous vein at a location distal to the saphenofemoral junction;
- advancing a needle out of an injection port of an injection channel of the elongated sheath, wherein the injection channel defines an injection direction that is not aligned with a longitudinal axis of the elongated sheath, whereby the needle extends out of the injection channel from the injection port along the injection direction;
- and
- injecting a sclerosing agent into the saphenous vein at an injection site that is distal of the location at which the saphenous vein is grasped, wherein the injecting is performed using the needle advanced out of the injection port.
3 more elements
Dependencies are inferred from the claim text.