8 results about "Human stomach" patented technology

The invention relates to the technical field of gastric lavage devices, in particular to a catheter nursing assembly for gastric lavage of a critical food poisoning patient, which comprises a stomach tube with an input port at one end and an output port at the other end and can be inserted from an oral cavity or a nasal cavity to reach the stomach of a human body through an esophagus, an expansion film is arranged on at least part of the outer wall, corresponding to an esophageal area below the epiglottis of a human body, of the stomach tube, and after the stomach tube is placed in a proper position of the human body, the expansion film is tightly attached to the inner wall of the esophagus by inflating an expandable space between the expansion film and the outer wall of the stomach tube, so that the esophageal area is expanded. Therefore, sealing between the outer wall of the stomach tube and the inner wall of the esophagus is achieved, vomit of a human body is prevented from flowing back from a gap between the outer wall of the stomach tube and the inner wall of the esophagus during gastric lavage and is prevented from being sucked into the trachea by mistake, and the vomit can be prevented from flowing out from the gap between the inner wall of the esophagus and the outer wall of the stomach tube in the gastric lavage process. Therefore, the risk that vomitus is mistakenly inhaled by a human body when passing through the trachea is avoided.

The present disclosure is directed to a method of producing human gastric insulin-secreting (GINS) cells and human gastric insulin-secreting (GINS) organoids. The present disclosure provides a population of human gastric insulin-secreting (GINS) cells and a preparation of human gastric insulin-secreting (GINS) organoids, which are glucose-responsive and insulin-secreting. The present disclosure also provides methods of controlling glycemia in a human subject by transplanting to the human subject the population of human GINS cells or the preparation of human GINS organoids.

The present disclosure is directed to a method of producing human gastric insulin-secreting (GINS) cells and human gastric insulin-secreting (GINS) organoids. The present disclosure provides a population of human gastric insulin-secreting (GINS) cells and a preparation of human gastric insulin-secreting (GINS) organoids, which are glucose-responsive and insulin-secreting. The present disclosure also provides methods of controlling glycemia in a human subject by transplanting to the human subject the population of human GINS cells or the preparation of human GINS organoids.

The utility model relates to a model for simulating dynamic gastric peristalsis. The model comprises a supporting bottom plate; a first roller is arranged on the first driving assembly; a second roller is arranged on the second driving assembly; the stomach support is located between the first driving assembly and the second driving assembly, and a stomach model is arranged on the stomach support; wherein the structures of the first roller and the second roller are the same, the first roller and the second roller are cylinders, the sections of the cylinders of the first roller and the second roller are triangular, the first driving assembly drives the first roller, and the second driving assembly drives the second roller to synchronously contact with the stomach model and extrude the stomach model to simulate gastric peristalsis. According to the model capable of simulating dynamic gastric peristalsis, the roller structure of the cylinder with the triangular section is more suitable for analog simulation of the gastric peristalsis part of dynamic human gastrointestinal digestion equipment, when the chamfer of the triangular roller is in contact with the stomach model, the extrusion depth is deeper, the force for pushing chyme in the stomach is larger, and the chyme can be better discharged.

The invention relates to a swallowable radio frequency and terahertz hybrid transceiving system chip for human stomach medical detection. The swallowable radio frequency and terahertz hybrid transceiving system chip comprises a double-frequency WIFI module, a rectification power supply module, a transceiving selection module, a terahertz imaging module and a down-conversion module. Wherein the rectification power supply module, the transmit-receive selection module, the terahertz imaging module and the down-conversion module are integrated in a chip. When a gastroscope test is carried out, the chip and the double-frequency WIFI module are jointly loaded into a capsule with the diameter of 3mm and are orally taken by a user on an empty stomach to be swallowed. The chip is powered by an in-vitro low-frequency WIFI signal, a high-frequency WIFI signal provides required radio frequency input, a terahertz imaging module in the chip emits terahertz waves, scanning imaging is carried out in intestines and stomach, a scanning result is subjected to down-conversion through a down-conversion module to a high-frequency wifi frequency band, and the high-frequency wifi frequency band is emitted out of a body. And the in-vitro computer receives and performs 3D reconstruction to obtain stomach space information.

The invention relates to the crossing field of biomedical engineering and animal science, and particularly discloses a dynamic osmotic pressure bionic digestive system and a simulation method. An osmotic pressure adjusting mechanism is installed in the middle of one end of the main digestion cavity, and a human stomach simulation cavity, a monogastric animal simulation cavity, a ruminant simulation cavity and an aquatic product simulation cavity are installed in the main digestion cavity in a matched mode; through cooperative work of the multi-mode osmotic pressure adjusting liquid pool, the self-adaptive controller, the species database storage device, the liquid conveying pump, the liquid conveying pipe and the adjusting valve, the multi-mode osmotic pressure adjusting liquid pool has three osmotic pressure adjusting modes of a pulse type, a gradient type and a fluctuation type; the osmotic pressure characteristics of digestive tracts of different species such as human beings, monogastric animals, ruminants and aquatic products can be accurately simulated, and the dynamic regulation capability improves the simulation accuracy, so that the system can adapt to wider experimental requirements.

The utility model relates to an ESD (Electro-Static Discharge) operation training model for a digestive endoscopy, which adopts an adjustable box-net type training model, and compared with the prior art, the ESD operation training model for the digestive endoscopy has the advantages that: 1) a net bag is tensioned in a box body, a stomach module is placed in the net bag, the abdominal cavity of a human body is simulated through the box body, and a net film wrapping the stomach of the human body is simulated through the net bag; a human stomach is simulated through the pig stomach module, and the stomach module is provided with an esophagus section, so that an esophageal mucosa dissection operation under an endoscope can be simulated, and a beginner can quickly and conveniently master such operation skills; 2) by utilizing a rotating unit and a fixing clamp, not only can the position of the whole pig stomach module be flexibly adjusted, but also the position of the traction part after the length is adjusted can be fixed; traction force can be prevented from being concentrated on diagonal lines of the net bag through traction of the two traction lines; and 3) the manufacturing cost of the whole training model is lower.

The invention discloses a gastric antrum peristalsis image processing method and system based on a double-lens gastroscope capsule. The method comprises the following steps: acquiring a gastric antrum video sequence shot by the double-lens gastroscope capsule in the stomach of a human body; the double lenses are a first lens and a second lens which are arranged at two axial ends of the gastroscope capsule and are used for respectively acquiring images of a forward view angle and a backward view angle of the capsule; performing motion information processing on the video sequences from the first shot and the second shot to obtain motion features representing gastric wall deformation or image displacement; based on the motion features of the first lens and the second lens, consistency analysis is carried out on the motion directions, change trends and periodic features of the first lens and the second lens in the same time period, and when the motion features of the two lenses meet a preset consistency condition, it is judged that a gastric antrum wriggle event exists in the corresponding time period; and judging time sequence integrity and outputting a result. The accuracy and stability of gastric antrum peristalsis image recognition are improved.