Disclosed are various embodiments for improved surgical devices and methods of using the same in connection with bariatric and gastroesophageal surgery. The present disclosure includes a lighted bougie device that can include an elongate member and a light source. The light source can be configured to emit near-infrared light. The light source can also be positioned about the bougie such that light emitted from the light source illuminates along a portion of the bougie.

One or more medical devices may be provided that may be used, for example, in bariatric surgery including a vertical sleeve gastrectomy. Occlusion devices can be integrated with a catheter or tube to occlude one or more proximal or distal landmarks of a stomach and a stapling guide may be used to occlude a lateral boundary of the stomach to define a cavity. A volume of the potential resultant sleeve may be determined by inserting fluid or gas into the catheter or tube, measuring pressure, and calculating the volume of the cavity.

A bariatric clamp may include substrate members overmolded in polymer forming first and second elongated portions with insert portions, and a bight portion having a flexible hinge wherein the inserts are engaged via a magnetic force to retain the clamp in a closed position to partition the stomach. In another embodiment, the bariatric clamp may include substrate members overmolded in polymer forming first and second elongated portions and a bight portion having a flexible hinge, wherein the first and second elongated portions are curved to conform to a curvature of a patient's stomach. In another embodiment, the bariatric clamp may include substrate members overmolded in polymer forming first and second elongated portions each having one or more suture portions formed via one or more recesses formed in the substrate members.

An volume filling device for treatment of obesity is placed outside the stomach wall of the patient to reduce the inner volume of the stomach, thereby affecting the patient's appetite. By providing the volume filling device outside the stomach wall, contact with stomach acids is avoided, thereby increasing the life of the device.

A method for performing a sleeve gastrectomy includes providing a first medical device including a tube for insertion into an interior of a stomach, the tube having a proximal end and a distal end, and a shaping portion positioned at the distal end of the tube, providing an inflation lumen, and providing a second medical device, the second medical device being a stapler or clamp positioned externally on the stomach laterally adjacent to the first medical device. The method also includes introducing positive pressure into the stomach via the inflation lumen, defining a resection line for the sleeve gastrectomy, and clamping the stomach using the second medical device. The resection line is defined at least partially by the position of the second medical device relative to the first medical device when a predetermined positive pressure range is provided via the inflation lumen.

An apparatus for the treatment of acid reflux disease comprising two or more movement restriction device segments adapted to be movement restriction device of a controlled size. The movement restriction device can at least partly be invaginated by a patient's stomach fundus wall. A substantial part of the outer surface of the movement restriction device is adapted to rest against the stomach wall without injuring the latter in a position between the patient's diaphragm and at least a portion of the lower part of the invaginated stomach fundus wall, such that movement of the cardiac notch of the patient's stomach towards the patient's diaphragm is restricted, to thereby prevent the cardia from sliding through the patient's diaphragm opening into the patient's thorax, so as to maintain the supporting pressure against the patient's cardia sphincter muscle exerted from the patient's abdomen.

A method is used to reduce a volume of a stomach of a patient. The method includes inverting a portion of a stomach wall to thereby create an inverted portion. An expandable member is positioned adjacent to the outer surface of the inverted portion. The expandable member is expanded to thereby expand the inverted portion. The expanded expandable member has a first outer diameter. A base region of the inverted portion is cinched to thereby capture the expanded expandable member in the expanded inverted portion. The expanded expandable member has a first outer diameter. Expanding and cinching provide a cinch diameter to first outer diameter ratio from approximately 0.5:1 to approximately 0.9:1.

A bariatric clamp may include a plurality of recessed suture portions that are recessed from at least one of an inner surface and an outer surface of a first elongated portion of the clamp, each recessed suture portion including one or more suture passageways through a substrate member such that the one or more suture passageways have a perimeter at least partially defined by the substrate. A bariatric clamp may also include a passage-forming section provided at least in part by a bight portion of the clamp and a partition-forming section provided by an elongated portion of the clamp, wherein the elongated portion may include a curve thereby defining a curved separation in the partition-forming section of the bariatric clamp.

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.

A biocompatible implant for a method of treating a reflux disease in a patient by preventing the cardia sphincter from sliding through the patient's diaphragm hiatus opening into the patient's thorax, so as to maintain a pressure support from the patient's abdomen that supports the patient's cardia sphincter. The biocompatible implant has a rigid shape, a circumference of at least 15 mm and is configured to be introduced into the patent's abdomen through a trocar, be fully invaginatable in the patient's fundus wall, and function as an implantable movement restricting device preventing the cardia sphincter from sliding through the patient's diaphragm, when implanted.