The present disclosure relates generally to apparatuses, devices, and methods for performing endoscopic tissue resectioning in the gastrointestinal tract. In some embodiments, a tissue resectioning device may include first and second scaffolds each arranged in a tubular configuration. The tissue resectioning device may further include a hook tool engageable with the first scaffold and/or the second scaffold to bias the scaffolds to engage a target section of tissue between the first scaffold and the second scaffold. The hook tool may also engage the section of tissue to pull the section of tissue into the path of a cutting edge of each of the first and second scaffolds. In some embodiments, the tissue resectioning device is provided over a scope, which extends within a lumen of an overtube.

A tissue clip includes an elongate body configured to be detachably coupled to a shaft of a surgical instrument, a pair of jaw members received in the elongate body, and a resilient member configured to bow outwardly from the elongate body upon deployment of the tissue clip at a surgical site.

Medical devices and methods of using medical devices are disclosed. An example tissue engagement device includes a first actuation member including a body coupled to a first jaw and a second jaw at a pivot point, wherein the body is designed to shift between a first configuration and a first compressed configuration and a second actuation member coupled to the first actuation member at the pivot point and at a fixation point, wherein the second actuation member is designed to shift between a second configuration and a second compressed configuration. Further, shifting the first actuation member from the first configuration to the first compressed configuration, shifting the second actuation member from the second configuration to the second compressed configuration, or both, shifts the first jaw and the second jaw between a closed configuration and an open configuration.

Embodiments of the present disclosure include a medical device including, among other things, an elongated member having a proximal end, a distal end, and at least one channel. A distal portion of the at least one channel may be displaced relative to a longitudinal axis of the elongated.

A medical device is disclosed which includes a delivery member having at least two lumens extending within. Each lumen may include a rotational element within. Each rotational element may be configured to convert linear motion into rotational motion. The medical device may also include a snare element including a distal snare loop and two proximally extending legs. Each leg of the snare element may be within one of the two lumens. Further, the rotational element in a first lumen may be configured to impart a clock-wise rotation to a first leg of the two proximally extending legs, while the rotational element in a second lumen of the at least two lumens may be configured to impart a counter clock-wise rotation to a second leg of the two proximally extending legs.

A towing device for endoscopy including a connecting portion connected to a wire of an endoscope to be moved, wherein a body of the connecting portion is broken when a set amount of tension or more is applied to the connecting portion; a guide portion including an inner path through which the connecting portion moves; a clip portion positioned at an opposite direction of the wire with respect to the guide portion and hooked by the connecting portion to be closed and grip body tissues; and an extension portion configured to move together with the guide portion and having a magnetic force.

The present invention relates to a composition, preferably an aqueous pharmaceutical solution, comprising a water-soluble polymer derived from cellulose and hyaluronic acid, preferably comprising carboxymethylcellulose and hyaluronic acid. More specifically, the invention relates to a composition, preferably an aqueous pharmaceutical solution, comprising 0.0001%-5% hyaluronic acid and 0.005%-2% carboxymethylcellulose. The invention also relates to the use of said composition, preferably an aqueous pharmaceutical solution, in the manufacturing of a medicament for the treatment of lesions in the mucosa by means of endoscopic resection, for example, the resection of polyps and/or tumors of the gastrointestinal mucosa.

A method for resecting a lesion in a wall of an organ of a patient includes injecting a fluid into the wall of the organ at a location proximate to the lesion, creating a wound in the wall of the organ by cutting the lesion from the wall of the luminal organ, removing at least a portion of the fluid injected into the wall of the organ, and closing the wound using a suture thread. The portion of fluid may be removed prior to or after partially threading the suture thread into the wall of the organ.

An endoscopic surgical device includes: a sheath; a forceps section protruding from a cover provided at a distal end of the sheath and including a pair of openable-closable forceps components; an operable member that is connected to a proximal end of the forceps section, that opens the forceps components when moved forward in a longitudinal direction, and that closes the forceps components when moved rearward; and a flow-path formation member having a through-hole through which the operable member extends and having a first liquid delivery hole constituted by a gap between the through-hole and the operable member and a second liquid delivery hole constituted by a gap between the flow-path formation member and an inner peripheral surface of the cover. The operable member is provided with a large-diameter section that abuts on the flow-path formation member when the operable member is moved forward to block the first liquid delivery hole.

An auxiliary apparatus for minimally invasive surgery is provided. The auxiliary apparatus includes an in vivo device, an in vitro device, a locating probe and a control system. The in vitro device includes an in vitro magnetic field generating element and a driving mechanism. The in vivo device includes a magnetic auxiliary member and an clip. The locating probe includes a magnetic field sensor. The auxiliary apparatus can achieve the effects of easy control of the mucosa curling angle, high repeatability of operation, fast speed, high safety and reliability for the mucosa to be dissected in any spatial orientation.