Baylis Medical Company Inc.

Boston Scientific Medical Device Limited

Other

Stereotaxis, Inc.

Gareth Davies

John Paul Urbanski

Mahmood Mirza

Bogdan Beca

Amanda April Hartley

Rund Abou-Marie

Naheed Visram

Ellen Harfield

Krishan Shah

Melanie Thompson Smith

Steve Arthur Copeland

Taras Juzkiw

Yun Uhm

Amy Lefler

Eduardo Moriyama

Deepthi Gorapalli

Ferryl Alley

Kaylie Lau

Youssef Biadillah

Robert G Dickie

Jason Woo

Maria Luk

Linus Hoi Che Leung

Linus Leung

Kelly Albert

Frank Headley Baylis

Christian Balkovec

Andrew Herbert-Copley

Dmitry Gerber

Kishan Shah

Ramunas Wierzbicki

Ramsey Leung

Noah Yang

Mark Mosley

Christine Wong

Yasir Al-Saffar

Amanda Centazzo-Colella

Steven Kinio

Prateek Mathur

Laurentiu Murtescu

Melanie Thompson

Jackie Leung

Jeffery D Arnett

Raju R Viswanathan

Steve A Copeland

George J Klein

Thomas C Waram

Gareth T Munger

Natalia Burachynsky

Lyndsay Stephenson

Bradley H Strauss

Moussa Chehade

Daniel Wing Fai Mok

Ashwini K Pandey

Jonathan Liberty

Matthew DiCicco

Mahban Samiee-Zafarghandy

Jan-Hung Chen

Audrey Chan

Frank Baylls

Hamed Avari

Trevor James Dell

Biadillah Youssef

Andrew Pequegnat

Hartley Amanda

Melanie Thomspon Smith

Matthew Paul Joseph DiCicco

Bahe Hachem

Ahmed Alnabelseya

Anna Strachan

David Wells

A system, apparatus, and method of using the same are disclosed for carrying out a transvascular procedure such as a Transjugular Intrahepatic Portosystemic Shunt (TIPS) procedure using energy to create a tract between the hepatic vein and the portal vein. The present invention provides a method using a flexible radiofrequency (RF) catheter having a lumen therethrough. The method involves the steps of advancing the flexible RF catheter into a first vessel; advancing a guiding sheath overtop of the flexible RF catheter; steering the guiding sheath to direct a distal tip of the RF catheter towards a second vessel; and, delivering RF energy via the flexible RF catheter, forming a tract from the first vessel and entering the second vessel.

Transvascular electrosurgical devices and systems and methods of using the same

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

A method and apparatus are disclosed for regulating a temperature of an esophagus when heat or cold is delivered to a left atrium, the method including altering a heat exchange device from an insertable configuration to a heat exchanging configuration which conforms and corresponds with a cross-section of an inside of the esophagus such that the esophagus is maintained in its natural shape and location. In some embodiments the heat exchange device has a heating/cooling balloon which is inflated to be in the heat exchanging configuration. Some alternative embodiments includes altering the configuration of the balloon to conform to or correspond with the cross section of an esophagus by means other than inflation.

Heat exchange and temperature sensing device and method of use

Apparatus and systems are disclosed that incorporate a steerable catheter control handle for bi-directional control of a steerable catheter. The steerable catheter control handle includes a slide assembly positioned within the inner housing and operable to translate linearly therein. The control handle further includes a proximal portion of at least two control wires being positioned through the slide assembly wherein one of the at least two control wires is indirectly coupled to the slide assembly via a direction reversing element. The steerable catheter control handle has a control knob rotatably coupled to the housing for linearly translating the slide assembly, thereby enabling the slide assembly to manipulate each of the at least two control wires, effecting a change in deflection of said catheter. The slide assembly further comprises a slide limiting mechanism to restrict linear translation of the slide assembly.

Steerable medical device handle

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

A steerable catheter control handle and method are provided for bi-directional control of a steerable catheter, the catheter including at least two control wires, a distal end of each of the control wires being coupled to the catheter at a distal region thereof. The control system comprises a housing. A wire actuation mechanism is disposed within the housing and is operably coupled to at least two control wires for enabling actuation of the at least two control wires. The steerable catheter control handle additionally comprises a proximal control knob that is operably coupled to the wire actuation mechanism to enable actuation of the at least two control wires for causing a distal end deflection of the steerable catheter.

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 system of medical devices includes a first medical device, a second medical device, an RLC circuit, a processor, and an output device. The first medical device includes an elongate member having a lumen. The second medical device includes a needle advanceable through the lumen. The RLC circuit includes an excitation voltage source, a resistor, a capacitor, an inductor, and an output voltage sensor. The inductor includes a coil that is supported by the first medical device and wound around the lumen. As the needle is advanced through the lumen, an output voltage of the RLC circuit is an indicator of a longitudinal position of the needle with respect to the elongate member. The voltage sensor is configured to sense the output voltage, and the processor and output device are configured to generate an output that is an indicator of the longitudinal position of the needle.

Methods for determining a position of a first medical device with respect to a second medical device, and related systems and medical devices

An electrosurgical device for puncturing tissue comprises an electrically conductive elongate member which is capable of force transmission from a distal portion of the electrosurgical device to a proximal portion of the electrosurgical device to thereby provide tactile feedback to a user. The proximal portion comprises a connector system for connecting a source of energy and a source of fluid to an electrosurgical device. The connector system includes a hub which includes an electrically conductive lengthwise member having a lengthwise member distal region and a lengthwise member proximal region. The lengthwise member defines a hub lumen therebetween and is configured to be operatively coupled to an electrosurgical device.

Connector system for electrosurgical device

An apparatus is disclosed for an optimized transseptal procedure that reduces the number of devices that are used in order to minimize procedural time, complexity and cost. The apparatus comprises a hybrid dilator that comprises the combined functionality of a transseptal sheath and dilator assembly. The hybrid dilator comprises: a dilator shaft defining a lumen for receiving a crossing device therethrough, a distal tip having an outer diameter which tapers down to an outer diameter of the crossing device for providing a smooth transition and a hub coupled with a side arm coupled to the dilator shaft.

Hybrid transseptal dilator and methods of using the same

Devices and methods for providing access to the pericardial cavity while reducing risk of myocardial damage. One method comprises the steps of: (a) advancing a puncture device towards a heart, the puncture device including an energy delivery device at a distal end of the puncture device; (b) delivering a single pulse of a pulsed energy through the energy delivery device to a parietal pericardium of the heart to create a void relatively close to the energy delivery device while maintaining the distal end of the puncture device in a substantially stationary position relative to the parietal pericardium; (c) advancing the puncture device a short distance into the void; (d) checking if the puncture device has accessed the pericardial cavity by measuring pressure on the distal end of the puncture device; and (e) repeating steps (b), (c), and (d), if necessary, until the energy delivery device is located at least partially within the pericardial cavity. The methods may include a step of confirming that the puncture device is at least partially within the parietal cavity by injecting or aspirating fluid through a lumen in the puncture device or measuring the pressure or electrical impedance at the distal end of the puncture device.

Electrosurgical pericardial puncture

An electro-anatomic mapping system is configured, in accordance with a preferred embodiment (and not limited thereto) to: (A) receive a first reference response signal from a first medical device, in which the first reference response signal is configured to be utilized by the electro-anatomic mapping system for formation of a first medical image; and (B) receive a second reference response signal from the first medical device, in which the second reference response signal is configured to be utilized by the electro-anatomic mapping system for forming a second medical image, and in which the second medical image, in use, depicts image noise interference resulting from activation of a second medical device.

Electro-anatomic mapping system

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

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.

Growing community of inventors

Toronto, Canada

Gareth Davies