Gi Dynamics, Inc.

Conformal Medical, Inc.

Other

Cervos Medical LLC

Seedling Enterprises, LLC

Endocellutions, Inc.

Ethicon Endo-surgery, Inc.

Scimed Life Systems, Inc.

Hydrocision, Inc.

Omnisonics Medical Technologies, Inc.

Lumerx, Inc.

Boston Scientific Scimed, Inc.

Harvard College

The Brigham and Women's Hospital, Inc.

Microsurge, Inc.

Andy H Levine

David A Melanson

John C Meade

John F Cvinar

Ronald B Lamport

Aaron V Kaplan

Carol A Devellian

James H Loper

Michael T Radford

Andrew McGillicuddy

Eric E May

Philip R Lichtman

Neil Francis Duffy

Andres Chamorro, Iii

Barry Maxwell

Richard A Gambale

Dave Melanson

Anthony R Tremaglio

Andres Chamorro

J Donald Hill

Jeffrey Raymond Chabot

Michael A Sims

David J Sugarbaker

Ian K Parker

Neil Tischler

Stuart A Randle

Geoffrey Briggs

Robert A Rabiner

Lawrence Crainich

Kevin Patrick Staid

Timothy E Moutafis

Nicholas F Warner

Marc Joshua Tolkoff

Donald C Freeman, Jr

David M Fischer

Donald Elliot Ingber

Peter J Shank

Ducksoo Kim

Philip Stephen Levin

Bradley A Hare

Jay Pasricha

Robert M Arcangeli

Michael J Partsch

Premananda Pai Indic

Brad A Hare

James Niemi

John Paul Osborne

Olivier F Henry

Christoph Matthias Kanzler

Ezra S Fishman

Daniel Leo Miranda

Joseph Mooney

Thomas G Chasteen

Huy Lam

Michael Nissenbaum

Mustafa Karabas

Alan Dunne

Benjamin Matthews

Jiande Chen

Sean K Holmes

John L Meade

Devices and methods are described for occluding the left atrial appendage (LAA) to exclude the LAA from blood flow to prevent blood from clotting within the LAA and subsequently embolizing, particularly in patients with atrial fibrillation. An implant is delivered via transcatheter delivery into the LAA. The implant includes a conformable structure comprising a foam body and internal support. The support includes anchors that penetrate the foam body and anchor the implant to the walls of the LAA. The implant provides compliance such that it conforms to the native configuration of the LAA.

Devices and methods for excluding the left atrial appendage

Systems, devices and methods for occluding the left atrial appendage (LAA). The device excludes the LAA from blood flow. The implantable device is delivered via transcatheter delivery into the LAA and secured within the LAA. The implant comprises an expandable and compliant frame and an expandable and conformable tubular foam body. A delivery and tether retraction system includes a handle for controlling a pusher and tether. The pusher may be moved a distance away from the implant without changing the orientation of the implant, while the tether is still attached to the implant. Severing the tether and proximally retracting a control on the hand piece by a distance causes the severed end to advance distally by at least about twice that distance. A loader includes a conical portion with guides and a reservoir for submerging the foam prior to loading and delivery.

Devices and methods are described for occluding the left atrial appendage (LAA). The device excludes the LAA from blood flow to prevent blood from clotting within the LAA and subsequently embolizing, particularly in patients with atrial fibrillation. The implantable device is delivered via transcatheter delivery into the LAA and secured within the LAA. The implant comprises an expandable and compliant frame and an expandable and conformable tubular foam body carried by the frame. The device may have a thromboresistant cover at a proximal end and a thromboresistant coating on the foam body. The frame may have recapture struts inclining radially outwardly in the distal direction from a central hub. The frame may have axially extending side wall struts, with adjacent pairs of side wall struts joined at one or more apexes. Anchors extend from the frame to engage tissue. The anchors can also be reversible to allow retraction of the anchors and repositioning or retrieval of the device.

Devices and methods are described for occluding the left atrial appendage (LAA). The device excludes the LAA from blood flow to prevent blood from clotting within the LAA and subsequently embolizing, particularly in patients with atrial fibrillation. The implantable device is delivered via transcatheter delivery into the LAA and secured within the LAA. The implant comprises an expandable and compliant frame and an expandable and conformable tubular foam body. The device may have a thromboresistant cover at a proximal end. The frame may have recapture struts inclining radially outwardly from a central hub. The frame may have axially extending side wall struts, with adjacent pairs of side wall struts joined at one or more apexes. Anchors extend from the frame and into the foam to engage tissue.

Systems, devices and methods for occluding the left atrial appendage (LAA). The device excludes the LAA from blood flow. The implantable device is delivered via transcatheter delivery into the LAA and secured within the LAA. The implant comprises an expandable and compliant frame having anchors and an expandable and conformable tubular foam body. A delivery and tether retraction system includes a handle for controlling a pusher and tether. The pusher may be moved a distance away from the implant without changing the orientation of the implant, while the tether is still attached to the implant. A loader includes a conical portion with guides and a reservoir for submerging the foam implant prior to loading and delivery.

A system and associated method for concentrating and separating components of different densities from fluid containing cells using a centrifuge includes a container defining a cavity for receiving the fluid. The container has a top, a sidewall extending from the top, and a bottom disposed opposite the top and in sealing engagement with the sidewall. An insert is slidably disposed in the cavity of the container and defines a lumen through the insert. The lumen, which includes a hole and a funnel-shaped upper portion in fluid communication with the hole, forms an open fluid path between opposite ends of the insert. The insert has a density such that upon centrifugation a selected component of the fluid resides within the lumen. A container port is disposed in the top of the container to transfer the fluid into the container and to withdraw a fluid component other than the selected component from the container. The system includes a manifold that includes a manifold port, a vent to vent the container, and a connector to couple to the container port. A cannula is receivable in the manifold port and extendable through the container port into the container and into the lumen of the insert to withdraw the selected component from the lumen.

Cell concentration devices and methods including a syringe and a syringe holder

A bone marrow aspiration device and associated method includes an introducer needle assembly and an aspiration needle assembly. The introducer needle assembly includes an introducer cannula having proximal and distal ends, each end including an opening, and a screw assembly coupled to the introducer handle. The screw assembly includes a threaded tube and a lead screw receivable in the threaded tube. An outer cover is disposed around and in sealing engagement with the threaded tube and the lead screw. The aspiration needle assembly is receivable in the introducer cannula and includes an aspiration cannula forming a channel for aspirating bone marrow and including a flexible portion that extends from a distal end along a length of the aspiration cannula. A length of the aspiration cannula that extends beyond the distal end of the introducer cannula is adjustable by advancing the lead screw into or reversing the lead screw out of the threaded tube.

Bone marrow harvesting needle improvements

Devices and methods for occluding the left atrial appendage (LAA) to prevent blood from clotting within the LAA and subsequently embolizing, particularly in patients with atrial fibrillation. A foam implant encapsulated with a tough thromboresistent membrane is placed via transvascular means into the LAA and anchored with adhesives and/or mechanical anchors. Tissue over- and in-growth are optimized to anchor the implant in place and provide a permanent occlusion.

A system and associated method for concentrating and separating components of different densities from fluid containing cells using a centrifuge includes a syringe and a syringe holder, the syringe having a proximal top with a luer port, a sidewall extending from the top forming a syringe tube, and a plunger slidably disposed inside the syringe tube, the plunger forming a sealing engagement with the sidewall, the syringe holder defining a cavity for receiving the syringe, wherein a distal end of the syringe tube is at least partially closed by the syringe holder after the plunger is placed inside the syringe tube. The method includes receiving a fluid containing cells in the syringe; placing the syringe and syringe holder into a centrifuge;

A bone marrow aspiration device and associated method includes an introducer needle and an aspiration needle. The introducer needle includes an introducer cannula and a removable introducer stylet that includes a sharp tip to penetrate bone. The aspiration needle includes an optionally flexible aspiration cannula and a blunt stylet. The aspiration needle is receivable in the introducer cannula when the introducer stylet is removed from the introducer needle. The aspiration cannula forms a channel for aspirating bone marrow when the stylet is removed. The aspiration device also includes a locking mechanism to lock the aspiration cannula to the introducer cannula when the aspiration cannula is received in the introducer cannula, whereby the aspiration cannula can be advanced distally relative to the introducer cannula in a controlled manner, and whereby pulling the aspiration cannula proximally causes the introducer cannula to move proximally with the aspiration cannula.

Apparatus and methods for aspirating tissue

Growing community of inventors

Newton, MA, United States of America

Andy H Levine