Methods for collapsing a tubular organ, such as the esophagus, involve inserting a device into the tubular organ, at least partially sealing off a section of the tubular organ, and drawing in the wall of the tubular organ by application of suction. The devices may be used to move the wall of the tubular organ away from an area undergoing treatment or therapy, such as to minimize damage to the tubular organ by application of radiofrequency energy or to limit temperature increase of the tubular organ.

A medical securing device for securing an object with a securing member into a tissue comprises an elongated sheath with proximal and distal ends, and a securing member introduction device having proximal and distal ends. The securing member comprises first and second ends. The distal end of the securing member introduction device is configured to extend the second end of the securing member from the sheath and introduce it to or through the tissue via an introduction movement so to secure the portion of the securing member to the object and/or to the tissue. This is advantageously configured to happen without extending the securing member introduction device through the tissue whereupon no extra hole is made to the tissue by the securing member introduction device.

Devices and methods to stabilize an eye and suture with wound visibility are shown. In selected examples, a forceps is shown that includes one or more transparent projections. In use, the one or more transparent projections can be concurrently pressed against the wound while holding an eye stable with gripping surfaces of the forceps. The one or more transparent projections and the gipping of the forceps work together to aid in a suture placement.

Devices and methods to stabilize an eye and suture with wound visibility are shown. In selected examples, a forceps is shown that includes one or more transparent projections. In use, the one or more transparent projections can be concurrently pressed against the wound while holding an eye stable with gripping surfaces of the forceps. The one or more transparent projections and the gipping of the forceps work together to aid in a suture placement.

A forceps device includes first and second grasping portions, a base member that holds the grasping portions, first and second wires that transmit driving forces to move the grasping portions, and a first guide pulley and a second guide pulley. The base member includes a partition part having holes including a first hole through which the first wire passes and a second hole that is closest to the first hole among the holes and through which the second wire passes, first and second arms extending from the partition part toward the grasping portions, respective ends of a support shaft being fixed to the first and second arms, and the first guide pulley being provided on the support shaft adjacent to the first arm and the second guide pulley being provided on the support shaft adjacent to the second arm and spaced apart from the first guide pulley.

A surgical tissue grasper includes a handle assembly having a trigger, an endoscopic assembly, and a jaw assembly. The endoscopic assembly includes an outer tube and a driver. The driver is movable within the outer tube and operatively coupled to the trigger. The jaw assembly includes a stem detachably coupled to the driver, and a pair of jaws extending distally from the stem such that actuation of the trigger transitions the pair of jaws between spaced apart and approximated configurations to enable clamping of tissue. Each jaw of the pair of jaws includes a gripping portion and an outer support. The gripping portion is configured to engage tissue. The outer support is disposed outward of the gripping portion and coupled to an end portion of the gripping portion to enable flexing of the gripping portion or the outer support when a clamping force applied to tissue exceeds a predetermined threshold.

A surgical tissue grasper includes a handle assembly having a trigger, an endoscopic assembly, and a jaw assembly. The endoscopic assembly includes an outer tube and a driver. The driver is movable within the outer tube and operatively coupled to the trigger. The jaw assembly includes a stem detachably coupled to the driver, and a pair of jaws extending distally from the stem such that actuation of the trigger transitions the pair of jaws between spaced apart and approximated configurations to enable clamping of tissue. Each jaw of the pair of jaws includes a gripping portion and an outer support. The gripping portion is configured to engage tissue. The outer support is disposed outward of the gripping portion and coupled to an end portion of the gripping portion to enable flexing of the gripping portion or the outer support when a clamping force applied to tissue exceeds a predetermined threshold.

A gastroscopic method and instrument for treating obesity of a patient, using a device adapted to stretch a part of the stomach wall of said patient. The method comprises the steps of: inserting the device into the stomach through the esophagus, placing the device in contact with the stomach wall, and fixating the device to the stomach wall such that the device can stretch a part of the stomach wall.

An endoscopic tool for facilitating injection of fluid into a submucosal layer of tissue includes a first cannula, a second cannula, and means for attaching the first cannula to a mucosal layer of tissue. The first cannula has a distal end and a proximal end opposite the distal end. The second cannula is adapted to be coupled to a source of fluid and carries a needle at a distal end thereof. The means for attaching the first cannula to the mucosal layer draws the mucosal layer, which enlarges the submucosal layer. Fluid is then injected into the enlarged portion of the submucosal layer via the needle, thereby creating a raised portion of tissue around the injection site.

An endoscopic tool for facilitating injection of fluid into a submucosal layer of tissue includes a first cannula, a second cannula, and means for attaching the first cannula to a mucosal layer of tissue. The first cannula has a distal end and a proximal end opposite the distal end. The second cannula is adapted to be coupled to a source of fluid and carries a needle at a distal end thereof. The means for attaching the first cannula to the mucosal layer draws the mucosal layer, which enlarges the submucosal layer. Fluid is then injected into the enlarged portion of the submucosal layer via the needle, thereby creating a raised portion of tissue around the injection site.