Baylis Medical Company Inc.

Boston Scientific Medical Device Limited

John Paul Urbanski

Gareth Davies

Rund Abou-Marie

Mahmood Mirza

Bogdan Beca

Yun Uhm

Ellen Harfield

Ferryl Alley

Brock Miller

Jeffery D Arnett

Krishan Shah

Amanda April Hartley

Naheed Visram

Moussa Chehade

Linus Leung

James Dylan Klein

Matthew DiCicco

Maria Luk

Linus Hoi Che Leung

Glenn Arnold

Neil Godara

Youssef Biadillah

Taras Juzkiw

Frank Headley Baylis

Christian Balkovec

Eduardo Moriyama

Hans Christian Fischer

Lyndsay Stephenson

Matthew Gravett

Kai-Lon Fok

David Jonathan Rees

Marina Spyridis

Mahban Samiee-Zafarghandy

Chevis Delano Dilbert

Thomas Barrett

Matthew Paul Joseph DiCicco

Bahe Hachem

David Rees

Ahmad Kamal

Mahban Samiee Zafarghandy

Matthew Dicicco

Hans Fischer

James Klein

Novel and unique medical devices and associated methods are disclosed, for a medical device for puncturing tissue at a tissue site. The medical device includes an elongate member having a distal section defining a distal section curved portion and a distal section straight portion. The distal section straight portion is distal to the distal section curved portion. An active tip is located at a distal end of the distal section. The active tip is operable to deliver energy to create a puncture through the tissue. The medical device includes a constant diameter layer. The distal section straight portion includes a minimum diameter portion located proximal to a constant diameter portion, and the constant diameter layer surrounds the minimum diameter portion.

Methods and devices for puncturing tissue

Apparatus and systems are disclosed that incorporate coupling mechanisms to enable coupling of two mating member such as medical devices such as introducers, sheaths, dilators. More specifically, the disclosure relates to releasable coupling mechanisms, to allow for releasable coupling of two medical devices such as a dilator and a sheath so the devices can be maneuvered and/or manipulated together for example during a part of a medical procedure.

Coupling mechanisms for medical devices

A method and apparatus are disclosed for a needle for gaining access to the pericardial cavity of a heart. The needle includes an elongate member (e.g. a main shaft) defining a lumen and a side-port in fluid communication with the lumen; a blunt atraumatic tip for delivering energy for puncturing tissue; and a guiding surface (e.g. a ramp) for directing a device (e.g. a guidewire) through the side-port. The method includes using the needle for tenting a pericardium and delivering energy for puncturing the pericardium, and advancing a guidewire or other device through the needle and into the pericardial cavity.

Epicardial access system and methods

An electrosurgical device comprises an electrically conductive elongate member for traversing body vasculature defining a hollow lumen with one or more apertures at or near its distal end, wherein electrical energy can flow through the wall of the elongate member; and an energy delivery device in electrical communication with the elongate member is located distal to the end of the elongate member. The energy delivery device includes an electrode for delivering energy. Methods of using the electrosurgical device include cutting through occlusions and creating transseptal punctures.

Electrosurgical device having a lumen

Embodiments of medical devices and methods are disclosed. The medical devices typically comprise a flexible elongate member defining a lumen, and a support spine affixed to the distal end and extending proximally therefrom within the elongate member lumen. In some embodiments, the support spine is pre-shaped such that the support spine biases the distal region of the elongate member to adopt a straight configuration, or the support spine biases at least a portion of the distal region of the elongate member to adopt a curved shape to form a curved portion. Some embodiments include apertures at or near the distal end for enabling fluid communication between the lumen and the outside environment. In some embodiments, the support wire extends proximally from the distal end within a distal portion of the lumen such that a proximal portion of the lumen is substantially unobstructed.

Medical device having a support structure

A method and system are disclosed for puncturing tissue, comprising a puncture device for puncturing tissue and a supporting member for supporting the puncture device. The puncture device is capable of being insertable within the supporting member and being selectively usable in co-operation therewith during a portion of a procedure for puncturing tissue and wherein the puncture device is usable independently therefrom during another portion of the procedure.

A method of puncturing from an aorta into a left atrium using a puncturing device. The method involves a step of accessing a carotid artery and advancing a puncturing device through the carotid artery into an aorta. Advancing a sheath and a dilator over the puncturing device through the carotid artery and into the aorta such that a puncturing tip of the puncturing device is aligned with a distal tip of the sheath and a distal tip of the dilator, forming a puncturing assembly. Positioning the puncturing assembly at a target site within the aorta to gain access to a left atrium of a heart. Tenting a tissue between the aorta and the left atrium using the puncturing assembly. Creating a puncture through the tissue by advancing the puncturing device such that a channel between the aorta and the left atrium is formed.

Systems and methods for creating a puncture between aorta and the left atrium

A method and apparatus are disclosed for providing forward fluid delivery through an electrosurgical device, while avoiding coring when energy is delivered to the electrosurgical device. The device has a distal face defining an opening, with the distal face including at least one cutting portion and at least one non-cutting portion. An embodiment of the electrosurgical device for puncturing tissue includes an elongate member defining a lumen for fluid; a distal portion including an electrode and the distal face which defines at least one aperture. The portion of the at least one cutting portion defines a leading portion partially surrounding a circumference of the at least one aperture wherein the outer diameter of the at least one of the distal portion of the electrosurgical device or the electrode decreases towards a distal tip of the electrosurgical device.

Electrosurgical device having a distal aperture

An elongated catheter includes a tissue-engaging device configured to be urged to move and contact a first surface of the first biological wall. The tissue-engaging device extends from the distal catheter section. The tissue-engaging device is configured to be urged to puncture through the first biological wall. The tissue-engaging device is also configured to be urged to contact the first biological wall without impinging the second biological wall, after the tissue-engaging device has punctured through the first biological wall.

Catheter having tissue-engaging device

Novel and unique medical devices and associated methods are disclosed, for a medical device for puncturing tissue at a tissue site. The medical device is an elongate member having a proximal section, a distal section, and a rail section therebetween. The medical device includes an active tip at a distal end of the distal section and is operable to deliver energy to create a puncture through the tissue. The rail section is configured to both act as a rail for supporting installation of one or more tubular members thereupon, as well as be maneuverable for enabling access to the tissue site.

Methods and devices are disclosed for the formation of a communication between the aorta and left atrium. The method includes introducing a puncturing device, positioning the device at a location along the aorta, and advancing the puncturing device to create a pathway. The method may include: a. via an inferior artery, advancing a perforating tip of the puncturing device towards the aorta; b. positioning the perforating tip adjacent a wall of the aorta, proximate the left atrium; and c. advancing the perforating tip to perforate through the wall of the aorta and then through a wall of the left atrium, to create a pathway between the aorta and the left atrium, wherein the creation of the pathway can be confirmed with at least one of fluoroscopy, electro-anatomical mapping, pressure measurement, contrast injection, and echocardiograph.

Methods and devices for creation of communication between aorta and left atrium

Methods and apparatus are disclosed for puncturing tissue, including a surgical introducer with a stiff main body and a flexible tip which can be used with a puncture device to gain epicardial access. The surgical introducer comprises an introducer shaft having a rigid portion and a flexible tip portion. The rigid portion has a metal tube extending to the rigid portion distal end. The flexible tip portion is distal of the metal tube distal end. The flexible tip portion includes a first polymer and a second polymer, wherein the second polymer is more flexible than the first polymer. The second polymer extends distally from the metal tube distal end to define a second polymer flexible tip segment. The first polymer extends distally from the second polymer flexible tip segment end to define a flexible tip portion cap.

Apparatus and methods for puncturing tissue

A releasable coupling mechanism for coupling a delivery catheter and a dilator. The delivery catheter comprising a delivery catheter hub at the proximal end and the dilator comprising a dilator hub at the proximal end. The proximal end of the delivery catheter hub comprises a coupling member for releasably receiving a raised portion which is positioned at a distal end of the dilator hub. The coupling member has a pair of engagement members positioned on opposing sides of the coupling member and configured to releasably engage the raised portion. The delivery catheter hub further comprising at least one indicia on the housing. The indicia indicate an orientation of the delivery catheter hub such that the dilator hub disengages from the coupling member by simultaneously deflecting the pair of engagement members.

Coupling mechanism for medical devices

Growing community of inventors

Toronto, Canada

John Paul Urbanski