Abstract: Various methods and devices are provided for penetrating tissue. In one embodiment, a tissue-penetrating device is provided and includes a flexible hollow elongate shaft having a tissue-penetrating tip at a distal end thereof, and a plunger disposed within the tissue-penetrating tip. The plunger can be movable relative to the tissue-penetrating tip between a distal position in which the plunger is distal of the tissue-penetrating tip to prevent tissue penetration, and a proximal position in which the plunger is proximal of the tissue-penetrating tip to allow the tip to penetrate tissue. The plunger can be adapted to move from the distal position to the proximal position when the plunger is advanced into a tissue surface. The device can also include a biasing element coupled to the plunger that can be adapted to bias the plunger to the distal position. The biasing element can be coupled between a distal end of a stylet that extends through the hollow elongate shaft, and a proximal end of the plunger.

Abstract: Various devices and methods for dissecting and/or coagulating tissue are provided. In one embodiment, a surgical device is provided that includes an elongate member having proximal and distal ends, an energy emitter coupled to the distal end of the elongate member, and an insulating element that is disposed around the energy emitter. The insulating element can have an opening for receiving energy from the energy emitter, and the opening can be shaped to control a direction of energy emitted from the energy emitter.

Abstract: Disclosed herein are devices and methods for forming multidirectional cuts in tissue. The tissue cutting devices disclosed herein generally include a flexible elongate member with at least first, second, and third wires that are at least partially constrained within or along a portion of the member. A distal portion of the wires is anchored on or within a portion of the elongate member. When tension is applied to at least one of the wires, such as by an actuator at a proximal end of the device, the elongate member bows while an unconstrained portion of the wire becomes exposed relative to the adjacent portion of the elongate member, assuming a tissue-cutting configuration.

Abstract: An intubation system is provided for use with an endoscope. The intubation system includes a guide apparatus having a track that is adapted to be associated with the endoscope such that bending of the track is substantially decoupled from bending of the endoscope. The intubation system also includes a positioning device having a first coupling member on the distal end and an intubation device having a second coupling member on the proximal end. The intubation device and the positioning device each include a mating member that is adapted to slidingly engage the track external of the endoscope, whereby the first and second coupling members may be releasably attached together.

Abstract: An intubation device is provided for use with a guide apparatus having a track that is adapted to be associated with an endoscope such that bending of the track is substantially decoupled from bending of the endoscope. The intubation device includes an elongated, flexible tube and a mating member attached to the tube and adapted to slidingly engage the track external of the endoscope. The intubation device further includes a tissue bolster disposed on the proximal portion of the tube and changeable between a collapsed and an expanded configuration. The tube is positionable inside the upper gastrointestinal tract of a patient such that the proximal end of the tube is externalized through the gastric and abdominal walls of the patient, and wherein the tissue bolster is securable against the inner gastric wall when the tissue bolster is in the expanded configuration.

Abstract: A medical instrument handle includes a medical-instrument-handle body, manually-slidable first and second slides, and medical-instrument-member first and second articulation cables. The handle body has a longitudinal axis, a proximal body portion, and a distal body portion. The first slide is slidably attached to the handle body. The first articulation cable includes a first proximal cable portion which has a first centerline and which is connected to the first slide. The second slide is slidably attached to the handle body. The second articulation cable includes a second proximal cable portion which is connected to the second slide. A medical instrument also includes a flexible shaft and a medical end effector.

Abstract: A surgical system including a source of electrical energy, the source including a first electrical connection and a second electrical connection, a first jaw member including a first electrode connected thereto and electrically isolated therefrom, the first electrode being electrically connected to the first electrical connection, a second jaw member pivotally connected to the first jaw member and including a second electrode connected thereto and electrically isolated therefrom, the second electrode being electrically connected to the second electrical connection and electrically isolated from the first electrode, and an elongated shaft having a distal end and a proximal end, wherein the first jaw member and the second jaw member are connected to the distal end of the shaft.

Abstract: Devices and methods for ligating and coagulating tissue are provided. In one embodiment, a device is provided having an end effector that is adapted to access tissue to be treated at a surgical site and has the capability to both ligate and coagulate the targeted tissue. The end effector can include at least one ligation band that is removably disposed in a delivery configuration on a portion of the end effector and is adapted to be configured in a tissue-engaging configuration upon release from the end effector. The end effector can also include a pair of spaced electrodes disposed adjacent to each other on a tissue contacting portion of the end effector.

Abstract: A surgical device including a shaft defining an axis and having a distal end and a proximal end, a first elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the first electrode is generally coaxially aligned with the axis, to a second configuration, wherein the first electrode is generally perpendicular relative to the axis, and a second elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the second electrode is generally coaxially aligned with the axis, to a second configuration, wherein the second electrode is generally perpendicular relative to the axis, wherein the first elongated electrode is adapted to extend radially relative to the second elongated electrode.

Abstract: Disclosed herein are devices and methods for forming multidirectional cuts in tissue. The tissue cutting devices disclosed herein generally include a flexible elongate member with at least first, second, and third wires that are at least partially constrained within or along a portion of the member. A distal portion of the wires is anchored on or within a portion of the elongate member. When tension is applied to at least one of the wires, such as by an actuator at a proximal end of the device, the elongate member bows while an unconstrained portion of the wire becomes exposed relative to the adjacent portion of the elongate member, assuming a tissue-cutting configuration.

Abstract: Various devices and methods for dissecting and/or coagulating tissue are provided. In one embodiment, a surgical device is provided that includes an elongate member having proximal and distal ends, an energy emitter coupled to the distal end of the elongate member, and an insulating element that is disposed around the energy emitter. The insulating element can have an opening for receiving energy from the energy emitter, and the opening can be shaped to control a direction of energy emitted from the energy emitter.

Abstract: Devices and methods for ligating and coagulating tissue are provided. In one embodiment, a device is provided having an end effector that is adapted to access tissue to be treated at a surgical site and has the capability to both ligate and coagulate the targeted tissue. The end effector can include at least one ligation band that is removably disposed in a delivery configuration on a portion of the end effector and is adapted to be configured in a tissue-engaging configuration upon release from the end effector. The end effector can also include a pair of spaced electrodes disposed adjacent to each other on a tissue contacting portion of the end effector.

Abstract: A surgical device including a shaft defining an axis and having a distal end and a proximal end, a first elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the first electrode is generally coaxially aligned with the axis, to a second configuration, wherein the first electrode is generally perpendicular relative to the axis, and a second elongated electrode pivotally connected to the distal end of the shaft and deployable from a first configuration, wherein the second electrode is generally coaxially aligned with the axis, to a second configuration, wherein the second electrode is generally perpendicular relative to the axis, wherein the first elongated electrode is adapted to extend radially relative to the second elongated electrode.

Abstract: A surgical system including a source of electrical energy, the source including a first electrical connection and a second electrical connection, a first jaw member including a first electrode connected thereto and electrically isolated therefrom, the first electrode being electrically connected to the first electrical connection, a second jaw member pivotally connected to the first jaw member and including a second electrode connected thereto and electrically isolated therefrom, the second electrode being electrically connected to the second electrical connection and electrically isolated from the first electrode, and an elongated shaft having a distal end and a proximal end, wherein the first jaw member and the second jaw member are connected to the distal end of the shaft.

Abstract: A medical instrument handle includes a medical-instrument-handle body, manually-slidable first and second slides, and medical-instrument-member first and second articulation cables. The handle body has a longitudinal axis, a proximal body portion, and a distal body portion. The first slide is slidably attached to the handle body. The first articulation cable includes a first proximal cable portion which has a first centerline and which is connected to the first slide. The second slide is slidably attached to the handle body. The second articulation cable includes a second proximal cable portion which is connected to the second slide. A medical instrument also includes a flexible shaft and a medical end effector.

Abstract: A medical instrument includes a medical-end-effector-associated member and resiliently flexible first, second and third elongate members. The medical-end-effector-associated member has a rigid portion positionable within a patient. The first, second and third elongate members each have a proximal end portion and a distal end portion. The distal end portions of the first, second and third elongate members are attached to the rigid portion of the medical-end-effector-associated member. Relative lengthwise translation of the proximal end portions of the first, second and third elongate members articulates the rigid portion of the medical-end-effector-associated member.

Abstract: Various methods and devices are provided for penetrating tissue. In one embodiment, a tissue-penetrating device is provided and includes a flexible hollow elongate shaft having a tissue-penetrating tip at a distal end thereof, and a plunger disposed within the tissue-penetrating tip. The plunger can be movable relative to the tissue-penetrating tip between a distal position in which the plunger is distal of the tissue-penetrating tip to prevent tissue penetration, and a proximal position in which the plunger is proximal of the tissue-penetrating tip to allow the tip to penetrate tissue. The plunger can be adapted to move from the distal position to the proximal position when the plunger is advanced into a tissue surface. The device can also include a biasing element coupled to the plunger that can be adapted to bias the plunger to the distal position. The biasing element can be coupled between a distal end of a stylet that extends through the hollow elongate shaft, and a proximal end of the plunger.

Abstract: An intubation system is provided for use with an endoscope. The intubation system includes a guide apparatus having a track that is adapted to be associated with the endoscope such that bending of the track is substantially decoupled from bending of the endoscope. The intubation system also includes a positioning device having a first coupling member on the distal end and an intubation device having a second coupling member on the proximal end. The intubation device and the positioning device each include a mating member that is adapted to slidingly engage the track external of the endoscope, whereby the first and second coupling members may be releasably attached together.

Abstract: An intubation device is provided for use with a guide apparatus having a track that is adapted to be associated with an endoscope such that bending of the track is substantially decoupled from bending of the endoscope. The intubation device includes an elongated, flexible tube and a mating member attached to the tube and adapted to slidingly engage the track external of the endoscope. The intubation device further includes a tissue bolster disposed on the proximal portion of the tube and changeable between a collapsed and an expanded configuration. The tube is positionable inside the upper gastrointestinal tract of a patient such that the proximal end of the tube is externalized through the gastric and abdominal walls of the patient, and wherein the tissue bolster is securable against the inner gastric wall when the tissue bolster is in the expanded configuration.