Other

Cook Incorporated

E-z-em, Inc.

Sos, Thomas, A.

Thomas A Sos

Mitchell Tatum

Thomas A Osborne

Michael P DeBruyne

Eamonn P Hobbs

Catheters with at least two curved portions near their distal ends are provided. The lengths and/or curvatures of the curved portions are selected so that a catheter can be advanced through a brachiocephalic or left subclavian artery (BCA or LSC) to access the ascending or descending aorta (AA or DA), withdrawn therefrom, and simply rotated to access the AA or DA. Hence, the catheters provide access to both the AA and DA through the BCA or LSC without any need to withdraw the catheter from the BCA or LSC, e.g., so a second catheter can be exchanged for it. The catheter can further be advanced through the DA into the abdominal aorta and rotated to access branch arteries including the vessels of the lower extremities. The catheters are usable for flush aortography, arteriography, and intravascular pressure measurements, and can be introduced to the BCA or LSC via radial artery access.

Upper extremity access angiographic catheter

A guidewire introducible into a bodily lumen having an obstruction therein is provided. An introducer needle is advanced through tissue and into the bodily lumen. A guidewire is advanced through the introducer and into the lumen. The guidewire is advanced further through the lumen until an atraumatic distal tip of the guidewire encounters an obstruction the distal tip cannot pass in a straight forward manner. The distal tip is pressed against the obstruction such that a flexible segment proximal of the distal tip forms a loop distal of the distal tip. The guidewire is advanced further through the lumen such that the loop of the flexible segment is pushed past the obstruction and the distal tip is pulled distally past the obstruction. A greater diameter guidewire extension can be coupled to the back end of the guidewire, providing function as a larger diameter guidewire.

Atraumatic micropuncture guidewire and guidewire extension

A guidewire for medical procedures can be maintained in a coiled configuration with a clamp. Multiple clamped and coiled guidewires may be stored in a fluid-filled, storage bowl concurrently. Different clamps may have different colors to differentiate the clamps and clamped guidewires. The clamps may be markable to provide additional differentiation. The clamps can further comprise a guidewire introduction funnel and/or a guidewire torquer.

Guidewire clamp and introducer

A clot extraction catheter comprises a tubular mesh, a rim attached to the tubular mesh proximal end, control wires, an inner sheath, a clot macerator advancable from the inner sheath, and an outer sheath advancable over the guidewire channel and inner sheath. To extract a clot, the catheter is advanced through the clot. The inner sheath is retracted, allowing the rim and the tubular mesh to expand as well as exposing the clot macerator. The tubular mesh is retracted to capture the clot, constrained proximally by the distal portion of the inner sheath, and retracted with the inner sheath into the outer sheath. The clot macerator breaks apart large clots as the clot is captured, and the tubular mesh is retracted over the clot macerator. The control wires may be manipulated to control the angle of the rim, thereby facilitating clot capture and retraction of the tubular mesh.

Thrombus removal and intravascular distal embolic protection device

A guidewire introducable into a bodily lumen having an obstruction therein is provided. An introducer needle is advanced through tissue and into the bodily lumen. A guidewire is advanced through the introducer and into the lumen. The guidewire is advanced further through the lumen until an atraumatic distal tip of the guidewire encounters an obstruction the distal tip cannot pass in a straight forward manner. The distal tip is pressed against the obstruction such that a flexible segment proximal of the distal tip forms a loop distal of the distal tip. The guidewire is advanced further through the lumen such that the loop of the flexible segment is pushed past the obstruction and the distal tip is pulled distally past the obstruction. A greater diameter guidewire extension can be coupled to the back end of the guidewire, providing function as a larger diameter guidewire.

A clot extraction catheter comprises a tubular mesh, a tapered tip fixed to the tubular mesh distal end, a rim attached to the tubular mesh proximal end, control wires, a guidewire channel, an inner sheath, and an outer sheath advancable over the guidewire channel and inner sheath. To extract a clot, the catheter is advanced through the clot over a guidewire. The inner sheath is retracted relative to the control wires and the tubular mesh, allowing the rim and the tubular mesh to expand. The tubular mesh is retracted to capture the clot, constrained proximally by the distal portion of the inner sheath, and retracted with the inner sheath into the outer sheath. The control wires may be manipulated to control the angle of the rim relative to the longitudinal axis of the sheaths, facilitating clot capture and retraction of the tubular mesh into the sheaths thereafter.

A clot extraction catheter comprises an expandable tubular mesh, a tapered tip fixed to the tubular mesh distal end, a self-expanding rim attached to the tubular mesh proximal end, at least three control wires, an inner sheath, and an outer sheath advancable over the inner sheath. To extract a clot, the catheter is advanced through the clot. The inner sheath is retracted relative to the control wires and the tubular mesh, allowing the rim and the tubular mesh to expand. The tubular mesh is retracted to capture the clot, closed once the clot is captured, constrained proximally by the distal portion of the inner sheath, and retracted with the inner sheath into the outer sheath. The control wires may be manipulated to control the angle of the rim relative to the longitudinal axis of the sheaths, facilitating clot capture and retraction of the tubular mesh into the sheaths thereafter.

A safety needle for use in the vascular system. The needle has a first end adapted to be placed in the vascular system and a second end with a stopper and adapted to pass a guide wire. The needle has a port positioned between the first and second needle ends. The port is adapted to be connected to a blood collection device. The blood which enters the first end of the needle is diverted through the port to the blood collection device which avoids having the blood reach the second end of the needle.

Safety needle assembly

A balloon guide is disclosed which includes a single lumen useful alternately for fluid communication through the distal tip or for inflation of a balloon when the distal end is closed. The guide includes a body formed from coiled wire having a proximal portion in which the coils are held together and a distal portion in which the coils are separable. The balloon is located about the separable coils. A restriction adjacent the distal tip of the guide body is closable by a plug mandril extending through the central lumen of the guide. With the distal tip open, fluid communication is available through the central lumen for pressure measurements, fluid infusion or the like. In an alternate condition, a plug is positioned to close off the distal opening of the guide and also to stretch the coiled wire to separate the coils in the region underlying the balloon, preventing fluid communication through the distal tip, but permitting inflation or deflation of the balloon through the separated wire coils.

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New York, NY, United States of America

Thomas A Sos