15 results about "Pyloric orifice" patented technology

An occlusion device or plug having a proximal plug section and a distal plug section. The plug sections may each be shifted between an unexpanded configuration and an expanded configuration at the deployment site to occlude the deployment site. A tubular member such as a silicone tube may be used to form an occlusion device or plug shiftable or expandable into a desired configuration. An intermediate section between a proximal plug section and a distal plug section may be configured to be manipulated at least to shift at least one of the plug sections from an expanded configuration to an unexpanded configuration. A pair of stents may be coupled together via an intermediate section in such manner such that manipulation of the intermediate section causes at least one of the stents to shift from an expanded configuration to an unexpanded configuration.

In some examples, a gastroretentive system includes a dissolvable outer capsule, a body disposed within the outer capsule, at least one expandable and collapsible member coupled to the body and configured to be disposed within the outer capsule in a collapsed condition when the outer capsule is present and to transition to an expanded condition without the outer capsule, the expanded condition being too large to pass through a human pylorus, wherein at least one of the body and the at least one expandable and collapsible member includes a drug product.

The utility model discloses a kind of gastric cavity plugging catheters of gastrostomy in the medical instrument technical field, the device increases plugging balloon and sealing clamping piece, can be held by inside and outside, hold stomach wall and skin to position the device, while plugging balloon seals and isolates the puncture of stomach wall inside gastric cavity, effectively avoid gastric juice to flow out, avoid gastric juice to overflow along the puncture and cause skin burning;Positioning baffle is also increased, can be unfolded inside duodenum, positioning baffle can position nutrition tube, avoid nutrition tube to slide and separate, can also effectively block pylorus, effectively avoid enteric digestive juice to enter stomach, and do not hinder gastric juice to flow into intestine normally, and by pressure relief port and pressure relief pipe, stomach is conveniently decompressed, effectively avoid that pressure is too high and nutrition liquid is refluxed to esophagus.

A system for a bypass-like, transduodenal passage of stomach contents, comprising: a transduodenal bypass unit (BE), itself comprising a transduodenal assembly (TDG) having a tubular film (7) for the passage of stomach contents into the jejunum, and also comprising a transpyloric assembly (TPG) having a hose-like or tubular shaft component (2); a transesophageal positioning unit (PE) having a tubular shaft component (9), the outer diameter of said shaft component being smaller, at least in a distal region, than the inner diameter of the shaft component (2); and an extracorporeally controllable coupling device (KE) which selectively fixates the shaft component (2) to the shaft component (9) for coupling purposes or releases the same for decoupling purposes.

This invention relates to the field of pharmaceutical formulation technology, specifically to a sustained-release formulation of rifabutin, and more specifically, to a sustained-release rifabutin formulation composition for treating Helicobacter pylori infection. The key technical point of this invention is that it uses a novel antibiotic for treating Helicobacter pylori infection as the active ingredient, supplemented with specific inactive ingredients, including a hydrophilic gel-type matrix sustained-release material, a swelling agent, a buoyancy aid, and a lubricant. Through the synergistic effect of the hydrophilic gel-type matrix sustained-release material, the swelling agent, and the buoyancy aid, the composition can rapidly swell in gastric juice and maintain a floating state, thereby significantly prolonging the residence time of the formulation in the stomach and upper small intestine. This invention solves the technical problem of conventional formulations having a short residence time in the stomach and requiring frequent administration to maintain an effective antibacterial concentration, achieving the goal of effectively eradicating Helicobacter pylori by reducing the number of doses while maintaining an effective concentration at the site of infection for a longer period.

This invention provides a pyloric myotomy device capable of performing opening and cutting operations with a single instrument, comprising: an operating rod having a fixed jaw at one end and a fixed handle at the other end; a movable jaw hinged to the fixed jaw; a movable handle rotatably connected to the fixed handle and connected to the movable jaw via a connecting assembly for controlling the opening and closing of the movable jaw; and an operating sleeve fixedly fitted on the outer surface of the operating rod and positioned close to the fixed handle. The operating rod has a receiving groove extending along its length, and a blade is disposed within the receiving groove. The operating sleeve has an operating handle connected to the other end of the blade for controlling the blade to extend or retract from the opening. The operating handle has a limiting element that prevents the movable handle from rotating, so that the movable handle cannot rotate when the blade extends from the opening under the control of the operating handle, thereby limiting the opening of the movable jaw.

The utility model relates to the technical field of in-vitro digestive systems, and aims to solve the technical problem that a pylorus structure is not simulated. In order to solve the technical problem, the utility model provides a bionic pylorus structure, a pylorus contraction structure and a bionic system. The device comprises a flexible main body with a tubular structure, the plurality of pyloric sphincter bionic pieces are uniformly distributed on the inner wall of the flexible main body along the circumferential direction; the pyloric sphincter bionic part is formed by bulging from the inner wall of the flexible main body to the center; the hollow structure is enlarged and shrunk; in the axis direction of the flexible main body, the bulging size of the pyloric sphincter bionic piece is gradually increased and then reduced; a gap is formed between the free ends of every two adjacent pyloric sphincter bionic pieces, so that a multi-awn-star-shaped channel is formed in the center of the flexible main body to simulate the pyloric sphincter; the pylorus contraction structure drives the multiple pylorus sphincter bionic parts to relax and contract, and the diameter of the channel and the width and length of the gap are changed. The device can simulate the pylorus structure, and the test accuracy is improved.

The invention discloses a stomach wall peristalsis detection method, device and equipment based on ultrasonic waves and a storage medium, and relates to the technical field of ultrasonic imaging, the method comprises the following steps: continuously collecting dynamic echo signals of a gastric anterior wall cross section through a high-frame-rate ultrasonic probe, and ensuring high temporal-spatial resolution of original data; analyzing the difference between adjacent frames of images by adopting a phase tracking and cross-correlation algorithm, and converting the stomach wall movement into a quantifiable discrete displacement vector field; next, the discrete displacement field is fitted into a continuous propagation trajectory, and the propelling process of peristaltic waves from the stomach body to the pylorus is visually presented; secondly, key kinetic parameters such as propagation speed and creeping strength are extracted from the trajectory through a multi-scale feature fusion algorithm, and the crossing from qualitative observation to quantitative evaluation is realized; finally, through fusion visualization of vector arrows and color codes, three-dimensional information of the propagation direction, speed and intensity of the peristaltic waves is displayed at the same time, and the detection precision of gastric wall peristalsis is obviously improved.

A gastrointestinal implant comprising a stent adapted to be positioned distal to a pyloric sphincter, within a superior duodenum of a patient, and having non-point spring elements for contacting an inner surface of the superior duodenum. A lumen of a flexible sleeve coupled to the stent receives food from the stomach and allows it to pass through the sleeve lumen without contacting gastrointestinal tissue adjacent to the sleeve. The stent may be sized to fit securely in the superior duodenum without proximal or distal migration.

The utility model relates to medical instrument technical field discloses a long -acting gastric retention drug delivery device, can enter the stomach through the oral self -ingestion mode, further realizes size change through the unfolding of elastic component, and the mechanical strength of elastic component is strengthened through water -induced hard polymer, avoids being extruded deformation and is emptied through the stomach pylorus. The device includes drug loading component, elastic component and connecting component, and the drug loading component includes multiple drug loading pieces, and the drug loading piece all has the drug loading cavity. The elastic component includes multiple elastic pieces, and the first end of multiple elastic pieces is connected with each other to make the elastic component present star -like under the unfolded state. The outer layer of elastic component is covered with reinforcing film, and the reinforcing film is formed by water -induced hard polymer solidification and can gradually transform from flexible to rigid under the aqueous environment. The connecting component includes multiple connecting pieces, and the second end of an elastic piece is connected with a drug loading piece through a connecting piece, and the connecting piece is decomposed under the preset condition, so that the drug loading piece and elastic component are separated and are discharged outside non -invasively.

A visual intestinal obstruction catheter suite relates to the technical field of medical instruments and comprises a catheter, a flexible front guide portion is arranged at the far end of the catheter, and a visual lens is arranged at the front end of the front guide portion. A branch part is arranged at the near end of the catheter, and a decompression drainage tube is arranged on the branch part; a suction channel is arranged in the catheter, the near end of the suction channel is communicated with the decompression drainage tube, and the far end of the suction channel extends into the front guide part; the device further comprises an operation part, a guide assembly and a wire guide assembly, and the operation part is connected with the guide assembly through the wire guide assembly. During catheter indwelling operation, the operation part can be connected with a decompression drainage tube, the guide assembly and the guide wire assembly enter the catheter along the suction channel, and the guide assembly is located in the front guide part; the direction of the far end of the catheter can be flexibly operated through the operation part, so that in the catheter indwelling process, the catheter rapidly enters the duodenum through the pylorus of the stomach, and the catheter indwelling efficiency is improved.

This invention discloses a traditional Chinese medicine composition for the prevention and / or treatment of gastric ulcers and / or their complications. By weight, the composition comprises: 2-6 parts of Atractylodes lancea, 2-6 parts of Poria cocos, 1-4 parts of Magnolia officinalis, 2-6 parts of Aucklandia lappa, 1-4 parts of Lindera strychnifolia, 1-4 parts of Cyperus rotundus, 1-4 parts of Alpinia officinarum, 1-4 parts of Amomum villosum, 1-4 parts of Coix lacryma-jobi, 1-4 parts of Citrus reticulata peel, 1-4 parts of Citrus medica, 1-4 parts of Crataegus pinnatifida, 1-4 parts of Massa fermentata, 1-4 parts of Hordeum vulgare, 1-4 parts of Gallus gallus domesticus gizzard lining, 1-4 parts of Bletilla striata, 2-6 parts of Paeonia lactiflora, 2-6 parts of Corydalis yanhusuo, 1-4 parts of Cinnamomum cassia, and 1-4 parts of Piper longum. The complications are selected from one or more of the following: pain, inflammation, and delayed gastric emptying. This traditional Chinese medicine composition is safe, effective, and has a simple and efficient preparation method with controllable quality. It exhibits significant anti-inflammatory, analgesic, and gastric motility-promoting effects, and can reduce the colonization of Helicobacter pylori in the stomach. It also has significant therapeutic effects on gastric ulcers induced by different factors (Helicobacter pylori infection, pyloric ligation, and nonsteroidal anti-inflammatory drugs).

The invention discloses a ruminant stomach recovery two-way flushing device and method, and belongs to the technical field of animal organ dissecting instruments, the device comprises a workbench, and the bottom of the workbench is connected with supporting legs; a flushing cylinder is fixed to the upper surface of the workbench. The top of the flushing cylinder is connected with a cylinder cover; the cylinder cover is connected with a piston through an operating rod; two hard ear tubes are connected to the side face of the flushing cylinder, the ends of the two hard ear tubes are in butt joint with soft conveying tubes respectively, the ends of the two soft conveying tubes are in butt joint with hard intubation tube assemblies respectively, and the two hard intubation tube assemblies are inserted into the cardia and the pylorus of the compound stomach respectively. Flushing fluid is injected from the cardia and the pylorus at the same time, bidirectional flushing of the stomach is achieved, water pressure is increased through piston pressurization, and crude fibers in the rumen can be effectively removed; secondly, a hedging effect can be generated in the stomach recovery process through two-way flushing, chyme particles attached to the surface of the mucous membrane can be effectively cleaned, and the overall integrity of the gastric mucous membrane can be guaranteed while it is guaranteed that the gastric mucous membrane is thoroughly flushed clean.