Cook Medical Technologies LLC

Cook Incorporated

Other

David Christian Lentz

Dharmendra Pal

Jeffry Scott Melsheimer

Darin Gene Schaeffer

William L Howat

Christopher Michael Mobley

Thomas A Kay

Michael W Hardert

David A Drewes

William F Moore

Michael D Deckard

James Elsesser

Anders Bro

Peter A Polverini, Iii

Katrine Birch Rasmussen

A power saw system including a workstation having a table top surface, a saw arm coupled to the workstation at a first hinge member, the saw arm being configured to pivot toward and away from the table top surface about the first hinge member, a circular saw coupled to a distal end of the saw arm, and a second hinge member provided to the saw arm between the first hinge member and the circular saw, the second hinge member configured such that circular saw can be selectively rotated about the second hinge member in a direction lateral to an axis of the saw arm.

Multi-function power saw system

An introducer set includes an introducer and dilator along with an extension in a sealed sterile peal open package. The extension is available for use during procedures where the puncture access site to the patient is close enough to the site to be treated in the patient that the physician's hands and/or head may be positioned in the fluroscopic area while the physician is attempting to maneuver a wire guide to a desired location. When the extension is attached to the introducer, the physician may perform a procedure, such as an antigrade stick in the lower leg of a patient, while maintaining their hands and head outside of the fluroscopic area while direct radiation is being supplied and the wire guide is being maneuvered to a desired treatment location. After the wire guide has been properly positioned and the radiation has been terminated, the extension may be disconnected from the introducer and the remaining portions of the procedure (guide catheter insertion, balloon catheter insertion and dilation, etc.) may proceed in a known manner. The extension need only be in the range of ten to thirty centimeters to allow the physician to work a safe distance from the fluroscopic area undergoing direct radiation.

Introducer assembly extension and method of use

A supportive balloon catheter which may be used to assist a wire guide in advancing across a lesion which partially or totally occludes an intraluminal passage. The supportive balloon catheter is advanced over the wire guide, close to the location of the lesion. The supportive balloon catheter is then inflated, securing the position of the wire guide in the intraluminal passage. A braid on the catheter may provide additional structural support. The secured catheter restricts the movement of the wire guide advancing across the lesion, preventing kinking or deflection off the surface of the lesion. Once the wire guide has advanced across the lesion, the supportive balloon catheter or a different angioplasty may be used to clear the lesion from the intraluminal passage.

Supportive balloon catheter

A method of treating lower leg ischemia in a patient includes advancing a wire guide upstream through a vascular access sheath extending into an artery of the patient at a percutaneous entry point in the lower leg, and increasing a downstream flow of blood through the artery at least in part by dilating a constriction in the artery with a treatment mechanism guided into the constriction via the wire guide. A low profile balloon may be used as the treatment mechanism, and is advanced through the artery while the vascular access sheath protects the artery from irritation such that spasm of the artery is less likely to occur. Reduced risk of spasm advantageously enables retrograde access to chronic total occlusions such that multiple entry points into a patient's body are not necessary.

Catheter and treatment methods for lower leg ischemia

A catheter includes a catheter body defining first and second lumens, and a wire having first and second segments each with a greater stiffness, and a middle segment with a lesser stiffness. The wire is in an elastically deformed access state where the middle segment extends from an opening to the first lumen to an opening to the second lumen and forms a smaller loop. The wire is adjustable via sliding the first and second segments in opposed directions to an elastically deformed treatment state where the first segment extends from the opening to the first lumen to the opening to the second lumen and forms a larger loop.

Looped wire catheter and method

A balloon catheter device includes a multifilar tube shaft having a shaft lumen. A shaft lumen coating is provided on a surface of the multifilar tube shaft and extends from a proximal end of the multifilar tube shaft and terminates before a distal end of the multifilar tube shaft. An inflation balloon is disposed at the distal end of the multifilar tube shaft such that the shaft lumen coating and the inflation balloon form a continuously sealed length of the shaft lumen. The shaft lumen defines an inflation lumen that is in fluid communication with an interior space of the inflation balloon.

Multifilar cable catheter

A spring action medical device includes a spring that may propel a hammer component in a distal direction when the spring is released from a loaded state. When propelled forward by the spring, the hammer component makes contact with a distal tip of the medical device. The distal tip may then transfer a force to an external object, such as an occlusion in a body lumen.

Spring action medical device

A reinforced catheter or sheath includes an inner tube manufactured via an extrusion process from a mixture of thermoplastic and hollow glass beads. The resultant tube exhibits an inner goose bump surface that defines a central lumen. A reinforcement, such as a braid and/or coil is attached to at least a segment of the outer surface of the inner tube. A second tube of thermoplastic is extruded over at least a portion of the reinforcement. The inner goose bump surface exhibits a net low coefficient of friction comparable to that of polytetrafluoroethylene (PTFE).

Reinforced catheter or sheath with reduced friction surface

A balloon catheter is provided with three lumens. The first lumen may be used as a guide wire lumen. The second lumen may be used as an inflation lumen. The third lumen may be used to provide various treatments to a vessel. Methods of using the balloon catheter to treat a patient are also provided.

Balloon catheter with three lumens

Catheter balloon assemblies () for delivering a therapeutic agent to a body vessel are provided, as well as related methods of manufacturing and methods of treatment. The catheter balloon assemblies may include a concentrically disposed dual balloon assembly at the distal portion of the catheter having an inner balloon (), a porous outer balloon () concentrically arrayed around the inner balloon and a catheter shaft () adapted to deliver a therapeutic agent to the body vessel through the apertures in the outer balloon. Radial outward expansion of the inner balloon may urge the outer balloon into contact with the wall of a body vessel, where the therapeutic agent may be delivered from the catheter shaft through apertures in the outer balloon directly to the wall of the body vessel. Preferably, the catheter balloon assemblies include a stiffening' member () within the proximal portion and/or a plurality of lumens lined with a fluorinated hydrocarbon to independently inflate the inner balloon, deliver the therapeutic agent through the outer balloon and house a wire guide (). The catheter balloon assemblies may provide improved tractability and/or pushability characteristics.

Balloon catheter for delivering a therapeutic agent

A medical balloon catheter including a shaft comprised of a cross-wound coil tube and a sleeve surrounding the cross-wound coil tube. The cross-wound coil tube includes a monofilament inner coil disposed within a monofilament outer coil. The inner and outer coils are wound in opposite pitch directions. In at least one embodiment, at least one of the inner and outer coils includes a tapered distal section having a tapered diameter. In at least another embodiment, the inner coil extends distally beyond the distal end of the outer coil, providing increased flexibility in a distal portion of the shaft. An inflation balloon is attached to the distal end of the shaft. The shaft includes an inflation lumen formed through the inner coil and a wire guide lumen formed through the distal portion of the shaft and extending through the chamber of the balloon.

Reinforced rapid exchange catheter

A balloon catheter device of the present invention includes an elongate catheter shaft comprising multifilar cable tubing having a proximal portion and a distal portion. The proximal portion includes a coating that allows the shaft to provide a patent fluid passage, and a part of the distal portion inside a balloon may be uncoated or otherwise open to the balloon lumen, allowing for passage of fluid through the shaft into the balloon lumen.

An introducer sheath and a method for making the sheath. The sheath includes a fluoropolymer liner having a passageway extending longitudinally therethrough. An inner jacket is positioned longitudinally over the liner, and the inner surface of the inner jacket is bonded to the outer surface of the liner. An outer jacket is positioned longitudinally over the inner jacket, and the inner surface of the outer jacket is bonded to the outer surface of the inner jacket. A reinforcing coil is encapsulated within the inner jacket and the outer jacket.

Growing community of inventors

Bloomington, IN, United States of America

David Christian Lentz