30 results about "Submucosal dissection" patented technology

Instruments, systems, implants, and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. Instruments include a safe access needle injection instrument, a submucosal tunneling instrument, a submucosal dissection instrument, and a mucosal resection device. A submucosal implant device for diagnosing and treating disorders of the body may be implanted. A passive submucosal implant device may take the form of a drug delivery depot in which a therapeutic agent within the depot elutes from the depot according to a predetermined elution profile. An active submucosal implant device may take the form of a drug delivery device that incorporates a self-contained diagnostic system to determine the appropriate delivery time and dosage of a therapeutic agent to be administered.

An overtube includes: an endoscope insertion portion passing hole through which an insertion portion of an endoscope is passed; and at least one manipulator passing hole through which a manipulator insertion portion of a manipulator apparatus is passed. The manipulator insertion portion includes a driving portion which has at least one first joint and one second joint rotating clockwise and counterclockwise. The endoscope insertion portion passing hole includes an endoscope protrusion amount determination portion which determines a length of a protrusion of the endoscope; and an observation optical system observation direction determination portion which determines an observation direction of the endoscope. The manipulator passing hole includes a manipulator protrusion amount determination portion which determines positions of the first joint of the manipulator within the observation optical system; and a joint driving direction determination portion which determines rotating directions of shafts of joints within the observation direction.

The present invention relates to a pharmaceutical composition in form of emulsion or microemulsion and the use thereof as aid during endoscopic procedures in which it is injected in a target tissue in order to form a cushion. More in details, the invention relates to a method for performing an endoscopic procedure, which comprises injecting said pharmaceutical composition in form of emulsion or microemulsion in a target tissue of a patient, in order to form a cushion, which cushion is then optionally subjected to an endoscopic surgical procedure, such as a resection.

Instruments, systems and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. Instruments include safe access needle injection instruments incorporating electrosurgical capability, a submucosal tunneling instrument, a submucosal dissection instrument, a mucosal resection device. Systems include a combination of one or more of such instruments with or without injectable agents. Embodiments of various methods for performing the procedures are also provided.

Instruments, systems and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. Instruments include a safe access needle injection instrument, a submucosal tunneling instrument, a submucosal dissection instrument, a mucosal resection device. Systems include a combination of one or more of such instruments with or without injectable agents. Embodiments of various methods for performing the procedures are also provided.

Instruments, systems and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. Instruments include a safe access needle injection instrument, a submucosal tunneling instrument, a submucosal dissection instrument, and a mucosal resection device. Systems include a combination of one or more of such instruments with or without injectable agents. Embodiments of various methods for performing the procedures are also provided. In accordance with one aspect there is provided a submucosal implant device for diagnosing and treating disorders of the body. The submucosal implant device may take the form of a gastric stimulator in which signals are supplied to the muscular wall of a mammal to treat motility disorders. In accordance with yet another aspect there is provided a method for performing a submucosal medical procedure to deploy a submucosal implant device in the digestive tract of a mammal.

The invention relates to the field of biomedical engineering, and discloses an injectable colored gel pad for gastrointestinal mucosa delamination and application thereof. A fibroin solution, a chitosan solution or a gelatin solution is firstly injected into the submucosa of the digestive tract; and then, a genipin solution containing disodium glycerophosphate is injected into the submucosa of thedigestive tract; and a gel pad is formed in the submucosa of the digestive tract after a cross-linking reaction occurs, and is used for separating a pathological mucosal layer from a muscle layer tofacilitate the dissection of the pathological mucosal layer. The forming time of the gel pad is controlled by controlling the dosage of the genipin and the disodium glycerophosphate in the genipin solution. The injectable colored gel pad for gastrointestinal mucosa delamination has the advantages that used materials are all liquid materials with low cytotoxicity and high biocompatibility; the formed gel pad is dark blue, so that pathological tissues can be clearly marked, and the submucosal dissection operation is more convenient and safer; a good clinical use effect is achieved; and the injectable colored gel pad is worthy of clinical popularization.

An overtube includes: an endoscope insertion portion passing hole through which an insertion portion of an endoscope is passed; and at least one manipulator passing hole through which a manipulator insertion portion of a manipulator apparatus is passed. The manipulator insertion portion includes a driving portion which has at least one first joint and one second joint rotating clockwise and counterclockwise. The endoscope insertion portion passing hole includes an endoscope protrusion amount determination portion which determines a length of a protrusion of the endoscope; and an observation optical system observation direction determination portion which determines an observation direction of the endoscope. The manipulator passing hole includes a manipulator protrusion amount determination portion which determines positions of the first joint of the manipulator within the observation optical system; and a joint driving direction determination portion which determines rotating directions of shafts of joints within the observation direction.

Systems, methods, and devices for assisting submucosal dissection include a shrink tape body. The shrink strap body is at least partially formed from a deformable material. The shrink strap body is selectively movable between a first state and a second state. In the first state, the constriction band body is capable of engaging target patient tissue. In the second state, the constriction band body is capable of constricting the target patient tissue. At least one tissue engaging member is located on the constriction band body.

The present invention discloses a task specific robot for the procedure of endoscopic submucosal dissection (ESD). This robot has two arms with nine degrees of freedom (DOF), and the capability of tissue elevation and dissection. An optimal design of these robot arms requires the use of shape memory alloy (SMA) wire and steel wire actuators to develop an improved actuation mechanism, which enables force to be transmitted to the distal tip of the robot arms for an efficient tissue elevation and dissection.

The invention provides a tunnel support for endoscopic submucosal dissection. The tunnel support comprises an air bag, a tubing, a negative pressure tube, a lead guide tube and an inflatable tube; the negative pressure tube, the lead guide tube and the inflatable tube are located in the tubing; the air bag is located at the front end of the tubing; the negative pressure sucking tubes are lengthways arranged on two sides of the upper wall and the lower all of the air bag; outward negative pressure sucking holes which pass through the air bag wall to communicate with the outside are uniformly formed in the negative pressure sucking tubes at the two sides of the upper wall and the lower wall of the air bag; the inflatable tube communicates with the air bag; the negative pressure tube is connected with a negative pressure generator. The tunnel support is simple in structure, convenient and reliable to operate, and effective to support a tunnel during the endoscopic submucosal dissection, so as to greatly reduce perforation and injury on muscularis propria and other complications; in addition, the difficulty at surgery can be greatly reduced, the cutting efficiency can be improved, and meanwhile, the safety of the surgery can be improved.

The invention discloses an endoscopic submucosal tunnel support which is characterized by comprising a head, a framework, an insulating layer, a tail, a recycling wire, an ejector rod, a sheath, a sheath handle and an ejector rod handle. A support body comprises the head, the framework, the insulating layer and the tail; the recycling wire penetrates thread gaps, which are close to the tail, of the framework; a conveyor comprises the ejector rod, the sheath, the sheath handle and the ejector rod handle; the ejector rod is positioned in the sheath and can axially move; the support body is preliminarily compressed and gripped in the sheath and can be completely pulled away from the sheath after being released, and the original spatial stereoscopic geometric shape of the support body can be restored; the recycling wire can be hooked, dragged and pulled, so that the support body can be withdrawn. The endoscopic submucosal tunnel support has the advantages that tunnels can be effectively supported by the endoscopic submucosal tunnel support when tunnel walls are excised during endoscopic submucosal dissection, accordingly, complications such as perforation and inherent muscular layer injury can be reduced, and the excision efficiency can be improved.

The present disclosure relates to the field of endoscopy. In particular, the present disclosure relates to systems and methods suitable for resecting or dissecting large areas of mucosal or submucosal tissue. The system can apply tension to and continuously manipulate the mucosal tissue such that large lesions can be resected or dissected by a cutting element disposed at the distal end of the endoscope.

Embodiments of the present invention provide an operation process recording method, device, medium and computing device. The method includes: obtaining a plurality of operation sub-videos from the collected operation video, and determining the operation type corresponding to each operation sub-video; marking the target contained in each frame image in each of the identified operation sub-videos, and obtaining the recognition labeling information of the target; storing each frame of image and the video time corresponding to each frame of image, the operation type and the labeling information together to obtain operation process record information. The present invention can obtain the operation process record based on the operation video. When watching the operation video of the operation process with the operation process record, you can know more clearly the surgical instruments that need to be used in each step of the operation, as well as the operating scenes and lesions that will appear. , improve the application rate of endoscopic submucosal dissection video, and improve the training efficiency of endoscopic submucosal dissection.

The invention provides a full-thickness resection model box for endoscopic submucosal dissection (ESD) of a stomach, which is composed of a simulated esophagus, a nylon buckle, an electrode pad, an elastic rubber band, three traction clips, a simulated abdominal cavity box, and a duodenum sealing buckle, wherein the simulated esophagus passes through the simulated abdominal cavity box; the nylon buckle is fixed at one end of the simulated esophagus; the three traction clips are fixed at two sides of the simulated abdominal cavity box through the elastic rubber band; and the electrode pad is attached to the outer wall of a sample for an experiment. The design is reasonable, the making material is easy to obtain, the making is simple, and the cost is low. The full-thickness resection model box for endoscopic submucosal dissection of the stomach is suitable for training a beginner to perform endoscopic submucosal dissection, a stomach full-thickness resection technique and gastric perforation emergency treatment, simulates a sealed abdominal cavity environment in the case of gastric wall full-thickness resection perforation and is a model for ESD training with the using effects close to the actual state of clinical operation. The relatively-sealed abdominal cavity environment in the case of full-thickness resection perforation can be simulated, and the three traction clips are used to simulate the supporting role of main zonules such as hepatogastric ligament, thereby being close to clinical practice.