Abstract: A flattened mesh ablation device for ablating tissue in a body lumen is disclosed. The flattened mesh ablation device includes a flattened mesh with at least one conductor on an edge of the flattened mesh. When the flattened mesh is compressed axially it expands radially to contact the inner surface of the body lumen in a helical pattern. Energy is applied to the conductor ablating tissue proximate the conductor.

Abstract: A flexible mesh ablation device for ablating tissue in a body lumen. The flexible mesh ablation device includes a flexible mesh with at least one conductor on an exterior surface of the flexible mesh. When the flexible mesh is compressed axially it expands radially to contact the inner surface of the body lumen and conform to the shape of the body lumen. Power is applied to the conductor ablating tissue proximate the conductor.

Abstract: An electrosurgical system may include a medical delivery device and an electrosurgical device to perform an electrosurgical procedure. The electrosurgical device may have a monopolar configuration. An outer surface of the medical delivery device may include a conductive portion that is part of a return path for a bipolar configuration. Current may be supplied through an active member of the electrosurgical device to perform the procedure. After passing through tissue, the current may be drawn to the electrode portion of the medical delivery device to complete the circuit.

Abstract: A bipolar sphincterotome may include an elongate tubular member, a cutting wire, and a return path. The return path may include a conductive ink portion disposed on an outer surface at a distal portion of the tubular member. The return path may also include a return wire disposed within the tubular member that is electrically coupled to the conductive ink portion. In some example embodiments, the return wire may be disposed within a lumen configured to have two or more functions, one of which being to house the return wire. Additionally, in some example embodiments, the conductive ink portion may be circumferentially disposed on the outer surface to provide visual access to a wire guide lumen. Also, for some example embodiments, the bipolar sphincterotome may include two electrically isolated return paths.

Abstract: A flexible lens is mounted to the end of an elongate medical device having a camera, such as an endoscope. The lens is generally solid and is made from a translucent, flexible, and resilient material. In a medical environment, the lens can be pressed against a vessel wall in a patient to enlarge the area viewed by the camera, and can further adapt to the shape of the wall to limit trauma on the patient. When pressed against the vessel wall, the lens can become longitudinally compressed, while becoming wider. The wider and compressed shape of the lens will push blood away from the viewing area to increase the clarity of the camera's field of view.

Abstract: Medical system and methods are provided for forming an Anastomosis, such as an intestinal bypass anastomosis for treatment of obesity or diabetes. The medical devices and methods are minimally invasive and reduce complications. One embodiment of the method includes forming a first opening in the first section and forming a second opening in the first section. A proximal portion of the second section is moved to a position adjacent the first opening, and a distal portion of the second section is moved to a position adjacent the second opening. In this manner, an intermediate portion of the second section extends along the first section and an anastomosis can then be formed between the first section and the second section.

Abstract: Medical devices and methods are disclosed for suturing tissue, that may be employed endoscopically and/or laparoscopically, and that offer simple, reliable and controllable placement of suture around a perforation for complete closure thereof. One embodiment of the medical system generally includes an endcap having first and second arms, a needle, a suture, and first and second control members. The first and second control members are used to pass the needle back-and-forth between the first and second arms.

Abstract: Multi-luminal endoscopic systems for sterilely delivering deployable devices or obtaining bodily tissues. The system comprise an outer catheter comprising a wall that encloses an outer lumen; an inner catheter movably disposed within the outer lumen and having an inner lumen; a balloon-tipped catheter movably disposed within the inner lumen and having a distal end and a proximal end, wherein the distal end of the balloon-tipped catheter comprises a balloon tip that can be expanded to contact the wall of the outer catheter to provide a seal to prevent bodily fluids from entering the outer lumen; and a push catheter having a lumen and is located within the outer lumen. The delivery systems can comprise concentric catheters. Systems used for tissue collecting can comprise catheters with different common center.

Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, first and second links attached to both the jaws and the housing, and a driver. The housing, first and second jaws, and first and second links form a linkage mechanism that allows the jaws to engage tissue and be left in vivo.

Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.

Abstract: Medical devices and methods are provided for rolling an endoscopic sheet into a tubular configuration.

Abstract: Medical systems, devices and methods are provided for engaging tissue, e.g. for clipping tissue, closing a perforation or performing hemostasis. Generally, the medical system including a housing, first and second jaws rotatable relative to the housing, a driver, and an elongate drive wire. The elongate drive wire may be disconnected from the driver, first and second jaws, and the housing, which are left in vivo engaged with the tissue.

Abstract: Devices and methods are provided for accessing a bodily opening that, among other things, are safe, reliable and repeatable. One embodiment of a device for anchoring to tissue includes an elongated tube and a magnet. The elongated tube has a proximal end opposite a distal end, and defines a central axis. The magnet is attached to the distal end of the elongated tube and has a magnetic field attractive to the magnetic material in the tissue. The magnet has an annular shape defining an aperture through which the elongated tube extends.

Abstract: Medical system and methods are provided for forming an Anastomosis, such as an intestinal bypass anastomosis for treatment of obesity or diabetes. The medical devices and methods are minimally invasive and reduce complications. One embodiment of the method includes forming a first opening in the first section and forming a second opening in the first section. A proximal portion of the second section is moved to a position adjacent the first opening, and a distal portion of the second section is moved to a position adjacent the second opening. In this manner, an intermediate portion of the second section extends along the first section and an anastomosis can then be formed between the first section and the second section.

Abstract: Multi-luminal endoscopic systems for sterilely delivering deployable devices. The system comprises an outer catheter comprising a distal portion and a wall that encloses an outer lumen; an inner catheter movably disposed within the outer lumen and having an inner lumen; a balloon-tipped catheter movably disposed within the inner lumen and having a distal portion and a proximal portion, wherein the distal portion of the balloon-tipped catheter comprises a balloon; a deployable device within the outer lumen; an invertible sleeve within the outer lumen with a first section attached to the distal portion of the outer catheter and a second section attached to a push mechanism that is proximal to the deployable device; and wherein the balloon is expandable to contact the invertible sleeve to provide a seal to prevent bodily fluids from entering the outer lumen.

Abstract: Medical devices and methods are disclosed for suturing tissue, that may be employed endoscopically and/or laparoscopically, and that offer simple, reliable and controllable placement of suture around a perforation for complete closure thereof. One embodiment of the medical system generally includes an endcap having first and second arms, a needle, a suture, and first and second control members. The first and second control members are used to pass the needle back-and-forth between the first and second arms.

Abstract: Medical devices, systems and methods are disclosed that serve to guide one or more medical devices through a port formed in bodily tissue to access a bodily cavity. One embodiment of the medical device includes a connection member, a rail, and a carrier. The connection member is structured for attachment to the port. The rail is attached to the connection member, and has a first portion extending distally through the port opening, and a second portion extending at an angle relative to the first portion. The carrier is structured to selectively connect to the first portion of the rail, and is slidable along the first and second portions of the rail.

Abstract: Medical systems and methods are provided for accessing a bodily cavity, such as the peritoneal cavity or the thoracic cavity, and for supporting diagnoses or procedures within or adjacent to such cavities. According to one embodiment, a method is provided for accessing an internal bodily cavity of patient, the bodily cavity defined by a cavity membrane, the patient having multiple tissue layers adjacent the bodily cavity including at least a skin layer and a fascia layer. An opening is formed through the skin layer and the fascia layer. An elongate medical device is inserted through the opening and between the fascia layer and the cavity membrane to form a tunnel communicating with the opening. Various medical instruments may then be used within the tunnel, and related medical kits and systems are described.

Abstract: Multi-luminal endoscopic systems for sterilely delivering deployable devices or obtaining bodily tissues. The system comprise an outer catheter comprising a wall that encloses an outer lumen; an inner catheter movably disposed within the outer lumen and having an inner lumen; a balloon-tipped catheter movably disposed within the inner lumen and having a distal end and a proximal end, wherein the distal end of the balloon-tipped catheter comprises a balloon tip that can be expanded to contact the wall of the outer catheter to provide a seal to prevent bodily fluids from entering the outer lumen; and a push catheter having a lumen and is located within the outer lumen. The delivery systems can comprise concentric catheters. Systems used for tissue collecting can comprise catheters with different common center.

Abstract: Medical devices and methods are provided for rolling an endoscopic sheet into a tubular configuration.