Angiodynamics, Inc.

Boston Scientific Scimed, Inc.

Navilyst Medical, Inc.

Boston Scientific Corporation

Mark Girard

Raymond Lareau

Benjamin Bell

Damon Casiello

Todd R Beaupre

Mark L Adams

Christopher L Nardone

Nathan Murphy

Robert F Rioux

Lishan Aklog

Kimbolt Young

Michael J Glennon

Mark W Wolfson

Seth Cote

Kevin Swift

Lambertus Wilhelmus Johannes Elberse

Franciscus Ludovicus Maria Johannes Veldhuijzen

Richard Nisil

Jeffrey J Crowley

James P Delaney

Kenneth LeBlanc

K Michael O'Rielly

Marissa Kewley

Tom Casey

Thomas Fisk

Christopher Nardone

Todd Beaupre

The present invention relates generally to improved systems and methods for removing undesirable material residing in vessels. More specifically, the present invention relates to systems and methods for using at least one cannula to remove substantially en bloc, from a site of obstruction or interest, undesirable material without fragmentation and without excessive fluid loss.

Systems and methods for removing undesirable material within a circulatory system

A valve comprises a first housing including a first lumen extending therethrough and defining a first disk-facing surface and a second housing including a second lumen extending therethrough and defining a second disk-facing surface, the second housing being mated to the first housing so that the second disk-facing surface faces the first disk-facing surface in combination with a flexible disk gripped between gripping portions of the first and second disk-facing surfaces, the disk including a slit extending therethrough which, when acted upon by a fluid pressure of at least a predetermined threshold level opens to permit fluid flow between the first and second lumens and which, when acted upon by a fluid pressure less than the threshold level remains sealed preventing fluid flow between the first and second lumens and a relief well between opposing portions of the first and second housings radially outside the gripping portions, a width of the relief well exceeding a width of a radially outer portion of the flexible disk so that the radially outer portion of the disk is free to move therewithin.

Pressure activated valve for high flow rate and pressure venous access applications

The present invention relates to a multi-reservoir port, catheter, and non-coring needle system that supports high-flow applications such as hemodialysis and apheresis. In particular, the invention relates to improvements to provide optimal flow rates, septum life, and septum/needle stability when introducing fluid into the multi-reservoir port.

High-flow port and infusion needle systems

A catheter that comprises a hub, an elongated conduit, and at least one lumen therein. The lumen includes a proximal lumen section, a distal lumen section, and an intermediate lumen section extending between the proximal and distal lumen sections. The cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the distal lumen section. In one embodiment, the cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the proximal lumen section. In certain embodiments, the lumen tapers from the distal and/or proximal lumen sections to the intermediate lumen section.

High flow catheters

The present invention relates to a multi-reservoir port, catheter and non-coring needle systems that support high-flow applications such as hemodialysis and apheresis. In particular, the present invention relates to improvements to each of these systems to provide optimal flow rates and septum life with minimal intraluminal pressure; both individually and in combination.

A catheter that comprises a hub, an elongated conduit, and at least one lumen therein. The lumen includes a proximal lumen section, a distal lumen section, and an intermediate lumen section extending between the proximal and distal lumen sections. The cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the distal lumen section. In one embodiment, the cross-sectional dimension of the intermediate lumen section is less than the cross-sectional dimension of the proximal lumen section. In certain embodiments, the lumen tapers from the dial and/or proximal lumen sections to the intermediate lumen section.

A valve having a first housing including a first lumen extending therethrough and a first disk-facing surface, a second housing including a second lumen extending therethrough and a second disk-facing surface, where the second housing is coupled to the first housing so that the second disk-facing surface faces the first disk-facing surface. A flexible disk has at least a portion of an outer edge of the disk extending away from a plane of a central portion of the disk, the outer edge contacting the first disk-facing surface, the disk including a slit extending therethrough which, when acted upon by a fluid pressure of at least a threshold level opens to permit fluid flow between the first and second lumens and which, when acted upon by a fluid pressure less than the threshold level, prevents fluid flow between the first and second lumens.

A system and method for catheter placement using ECG is provided. In certain embodiments, the system and method can generate a patient specific window for tracking a characteristic of an ECG waveform, such as the amplitude of a P-wave. The patient specific window can be utilized in a system and method for assisting in the placement of a catheter within a patient. In other embodiments, a tip location algorithm can be used with an anti-thrombogenic catheter and an intravascular electrode assembly for maintaining a high resolution intravascular signal in an ECG based catheter tip placement system.

Systems and methods for catheter tip placement using ECG

A catheter shaft including a metallic tubular member including a plurality of apertures formed in the tubular wall of the metallic tubular member to provide a desired degree of flexibility to the metallic tubular member. The metallic tubular member includes a tapered region intermediate a region and a second, reduced diameter region relative to the first region.

Catheter shaft including a metallic tapered region

A system for resecting tissue includes a loop structure configured for cutting tissue, at least a portion of the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, wherein a first portion of the loop structure comprises a first electrode, and a second portion of the loop structure comprises a second electrode. A system for resecting tissue includes a loop structure configured for cutting tissue, the loop structure formed by an elongate structure having a first end and a second end, wherein a length of the loop structure is adjustable by positioning the first end relative to the second end, and a support structure coupled to a portion of the elongate structure and having a surface for contacting tissue.

Radio frequency lasso

Systems and methods for securing a catheter to an implantable port are disclosed. The system includes a collar having a catheter gripping protrusion and a port lock cavity. A port having an outlet stem with a constant cross-sectional profile is utilized. The collar is configured to mate with a port lock protrusion connected to the port.

Port catheter locking system and method

An access port comprises a housing with a first opening and a self sealing septum sealing the first opening, the septum including an attachment portion for securing the septum to the housing, the attachment portion including a chamfer which, when the septum is mounted within the housing is subject to a force oriented substantially perpendicularly with respect to a plane of the outer surface, the chamfered portion redirecting a portion of the force to compress the outer surface. A septum for an access port comprises an attachment portion for abutting a septum seat of the access port and an operative surface permitting penetration by a needle and resealing itself after removal of the needle in combination with a chamfered portion providing a transition between the attachment portion and the operative surface, the chamfered portion re-directing a component of a force applied to the chamfered portion to compress the operative surface.

Growing community of inventors

Medway, MA, United States of America

Mark Girard