Baylis Medical Company Inc.

Boston Scientific Medical Device Limited

Mahmood Mirza

Gareth Davies

John Paul Urbanski

Ellen Harfield

Bogdan Beca

Yun Uhm

Linus Leung

Krishan Shah

Amanda April Hartley

Naheed Visram

Ferryl Alley

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

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

Electrosurgical device

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 handle or hub which includes an electrical connector configured to receive, in a releasable manner, an electrically conductive component operable to be electrically coupled to an energy source.

Embodiments of medical devices and methods are disclosed. The medical devices typically comprises a needle with a rigid proximal shaft, a flexible distal shaft and a distal tip. The distal tip includes an electrode for delivering energy to puncture a tissue. In some embodiments, the distal shaft comprises a superelastic material. In other embodiments, the distal shaft is comprised of both a superelastic material and a non-superelastic material.

Transseptal needle

A method and apparatus are disclosed for providing forward fluid delivery through an energy delivery device that avoids coring when it delivers energy to a tissue. The device has a distal face defining an opening, with the distal face including at least one electrically exposed portion and at least one electrically insulated portion. An embodiment of the energy delivery device includes an elongate member defining a lumen structured to receive a fluid, and a distal face defining an aperture in communication with the lumen. The distal face includes an electrically exposed conductive portion and an electrically insulated portion. The electrically exposed conductive portion is configured such that the energy it delivers while the energy delivery device is advanced into a tissue punctures the tissue without the tissue substantially occluding the lumen and without creating embolic particles.

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 receiving a fluid; a distal face defining at least one aperture; and the distal face including at least one cutting portion and at least one non-cutting portion cooperating to produce an elongated cut in a tissue when electrical energy is delivered to the distal face while avoiding coring of the tissue.

Methods and apparatus are disclosed for a needle comprising a distal shaft and a proximal shaft joined at a junction, the needle having a distal tip which includes an electrode for delivering energy to puncture a tissue, wherein the distal shaft is comprised of a superelastic material. In typical embodiments, the needle includes a lumen for delivering and withdrawing fluids from a treatment site. In some embodiments the junction is comprised of a superelastic material.

This disclosure describes embodiments of a kit and its constituent components which together form an apparatus in which fluid communication between a medical device's lumen and the surrounding environment is provided by a conduit cooperatively defined by the medical device and a tubular member into which the device is inserted. The medical device and tubular member are configured to fit together such that an outer surface of the distal region of the medical device cooperates with an inner surface of the tubular member to define the conduit between the side-port of the medical device and a distal end of the tubular member. The conduit is operable to be used for injecting fluid, withdrawing fluid, and measuring pressure, for example. Methods of assembling and using the apparatus are described as well.

Medical apparatus for fluid communication

A radiofrequency perforation apparatus for creating a channel at a target location in a body of a patient, the radiofrequency perforation apparatus comprising: a substantially tubular member defining a tubular member lumen; an end member partially positioned within the tubular member lumen at a distal end of the tubular member, the end member including an electrode; and an electrical insulator extending along the substantially tubular member.

Growing community of inventors

Toronto, Canada

Mahmood Mirza