18 results about "Stomach walls" patented technology

Provided is a use of a biological material in preparing a product for limiting gastric volume. The biological material is selected from a decellularized matrix, an artificial extracellular matrix and a high molecule compound. The wrapping of a remaining stomach after gastric volume reduction surgery by the biological material can effectively reduce the expansion of the gastric volume after the surgery for a long time. The gastric volume of the remaining stomach can be effectively maintained, avoiding the occurrence of weight regain caused by the expansion of the remaining stomach. The decellularized matrix and a biological material remolded tissue have the viscoelasticity equivalent to or close to natural tissue, avoiding gastric wall stiffness, and thus not affecting gastric wall peristalsis.

An apparatus for treating obesity of a patient having a stomach with a food cavity. The apparatus comprising a volume filling device adapted to be at least substantially invaginated by a stomach wall portion of the patient with the outer surface of the volume filling device resting against the stomach wall, such that the volume of the food cavity is reduced in size by a volume substantially exceeding the volume of the volume filling device. The apparatus further comprises at least one adjustable stretching device adapted to be at least substantially invaginated by a stomach wall portion of the patient with the outer surface of the stretching device resting against the stomach wall and adapted to stretch a portion of stomach wall, and a fluid connection device interconnecting the volume filling device and the stretching device.

The invention discloses stomach wall tissue biopsy forceps under a laparoscope, and belongs to the technical field of medical instruments. The biopsy forceps aim at solving the problems that existing biopsy forceps are low in sampling efficiency and inconvenient in angle adjustment. The device comprises a fixed pipe and a rotating pipe, a first pull rod is slidably connected into the fixed pipe, a second pull rod is slidably connected into the rotating pipe, an extension column is integrally formed at one end of the second pull rod, a limiting ball is integrally formed at one end of the extension column, and a limiting groove matched with the extension column and the limiting ball is formed in one end of the first pull rod; a connecting part is arranged between the fixed pipe and the rotating pipe and is used for connecting the fixed pipe and the rotating pipe; biopsy forceps are installed at the end, away from the fixed tube, of the rotating tube, and the biopsy forceps and the rotating tube rotate through a connecting part. The driving part is arranged at one end of the fixing tube and used for driving the first pull rod to move, a plurality of samples can be taken through one-time insertion, angle adjustment is flexible, operation is labor-saving, and the device is used for stomach wall tissue sampling under a laparoscope.

The invention provides a positioning device for an alimentary canal lesion endoscope, and relates to the technical field of alimentary canal endoscopes, the positioning device comprises an endoscope pipeline, an adjusting mechanism facilitating adjustment is arranged on the endoscope pipeline, a supporting mechanism facilitating positioning is arranged on the endoscope pipeline, and the adjusting mechanism comprises a protective hollow column and a mounting column; the supporting mechanism comprises an endoscope probe, a first adjusting pipe and a suction cup, the protective hollow column is slidably mounted at the circumferential end of the endoscope pipeline, and the mounting column is fixedly mounted at the circumferential end of the endoscope pipeline. By arranging the umbrella type supporting structure composed of the first adjusting tube, the second adjusting tube and the universal joint, the actual interior of the digestive tract is not a flat environment, natural wrinkles exist on the stomach wall, the intestinal mucosa fluctuates in a concave-convex mode, and individual differences exist in the forms of the digestive tracts of different patients; the multi-point supporting design of the umbrella type structure enables a plurality of supporting point positions to be respectively attached to mucous membranes at different positions around the focus.

The invention belongs to the technical field of medical instruments, and discloses a gastrointestinal tract magnetic clipping fistulization assembly and application thereof. The assembly comprises at least two magnetic bodies, each magnetic body is provided with a clamping end face, the effective length of each clamping end face is 3-5 cm, the width of each clamping end face is not smaller than 0.2 cm, and a clamping gap of 2-4 mm is formed between the stomach wall and the intestinal wall when the two magnetic bodies are attracted. The assembly can adopt an integral structure, a split structure, a bendable structure or a concave-convex clamping structure, and the magnetic body is provided with a fixing structure and a guide assembly. Laparotomy and minimally invasive implantation are not needed, permanent foreign matter residues are avoided, a stable permanent anastomosis channel can be formed, the risk of complications such as adhesion and leakage is reduced, the device is suitable for patients with refractory digestive tract obstruction, and fistulization safety and success rate are improved.

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.

The invention discloses a gastrointestinal ultrasound contrast agent without scattering echoes as well as a preparation method and application thereof, and relates to the technical field of biomedical ultrasound. The gastrointestinal ultrasound contrast agent comprises a thickening agent, a sound velocity regulator and water, the thickening agent comprises an edible gum thickening agent, and the edible gum thickening agent is selected from one or more of xanthan gum, guar gum, konjac gum, gellan gum, sodium carboxymethyl cellulose, Arabic gum, modified starch and natural starch; the sound velocity regulator is selected from one or more of skim milk powder, polyethylene glycol and mannitol. The gastrointestinal ultrasound contrast agent disclosed by the invention has the characteristics of no scattering echo and relatively low sound attenuation, and is suitable for clinical requirements of ultrasound examination and screening of gastrointestinal digestive tracts. For focuses, with high echoes, of all layers of the stomach wall or gaps of the stomach wall in the stomach wall, the gastrointestinal ultrasound contrast agent without scattering echoes has a very good contrast imaging effect.

Abstract The present invention relates to a reflux disease treatment apparatus, comprising two or more movement restriction device segments adapted to form an implantable movement restriction device with an elongated shape that maintains cardia in the correct position. The movement restriction device has proximal and a distal end, wherein the distal end is adapted to stabilize and hold the proximal end. The invention further comprises a control device for controlling the stimulation device to stimulate the cardia sphincter. The distal end can be further adapted to treat obesity, for example by stretching the wall of the stomach or filling out a volume of the stomach. Abstract The present invention relates to a reflux disease treatment apparatus, comprising two or more movement restriction device segments adapted to form an implantable movement restriction device Mar with an elongated shape that maintains cardia in the correct position. The movement restriction device has proximal and a distal end, wherein the distal end is adapted to stabilize and hold the proximal end. The invention further comprises a control device for controlling the stimulation device to stimulate the cardia sphincter. The distal end can be further adapted to treat obesity, for example by stretching the wall of the stomach or filling out a volume of the stomach. 20 24 21 64 87 30 A ug 2 02 4 A b s t r a c t

A surgical method of treating reflux disease by implanting a movement restriction device. The method comprises the steps of: dissecting in an area of an abdomen comprising a fundus of a stomach, inserting the movement restriction device into the abdomen of the patient, placing the movement restriction device in contact with the fundus of the stomach using an instrument holding the movement restriction device, invaginating the movement restriction device in the fundus of the stomach by: placing at least one suture in a wall of the stomach above the instrument holding the movement restriction device, and placing at least one suture in the wall of the stomach below the instrument holding the movement restriction device.

The invention belongs to the technical field of endoscopes, particularly relates to an intragastric double-endoscope collaborative visual diagnosis device, and aims to solve the problem that due to the fact that part of gastric diseases can be clearly diagnosed only by depending on long-time continuous observation, an existing gastroscope is difficult to meet the dynamic monitoring requirement. The capsule gastroscope comprises a capsule gastroscope body, a flexible gastroscope body and a magnetic attraction mechanism. The capsule gastroscope is internally provided with a liquid storage cavity used for containing adhesive liquid and has an auxiliary observation mode and a continuous observation mode. And the front end part of the flexible gastroscope is detachably connected to the capsule gastroscope. When the intragastric double-endoscope collaborative visual diagnosis device is used, after the flexible gastroscope conveys the capsule gastroscope to an observation position, the magnetic attraction mechanism applies magnetic attraction force to fix the capsule gastroscope to the stomach wall and trigger release of the adhesive liquid, the adhesive liquid adheres and fixes the capsule gastroscope to the stomach wall, the capsule gastroscope independently and continuously collects intragastric images, and the capsule gastroscope is used for detecting the intragastric images. And the capsule gastroscope falls off from the stomach wall until the bonding liquid loses efficacy due to the effect of gastric juice.

The utility model relates to a bionic stomach mechanism with a pressure feedback function and a bionic digestive system, the bionic stomach mechanism comprises a flexible bionic stomach, a flexible sensor and a driving mechanism, the flexible sensor is arranged in the stomach wall of the flexible bionic stomach; the two sets of driving mechanisms are symmetrically arranged on the two sides of the flexible bionic stomach, each driving mechanism comprises a rotary driving source, the output end of each rotary driving source is provided with a telescopic driving source, the output end of each telescopic driving source is connected with a mounting base, a connecting shaft is arranged on each mounting base, and a plurality of rolling wheels are rotationally arranged on each connecting shaft. According to the bionic stomach mechanism, the magnitude of the acting force of the flexible bionic stomach can be adjusted under the condition that the driving mechanism does not need to be shifted, assembled and disassembled, the flexible sensor is integrated in the stomach wall, and the magnitude and distribution of the stress of the stomach wall can be monitored in real time through the flexible sensor; meanwhile, the acting force of the driving mechanism on the stomach wall can be adjusted according to feedback pressure data, so that an experiment closer to the real stomach digestion process of a human body is simulated.

The utility model discloses a special built-in tube with accurate stomach filling and jejunum nutrition functions for esophageal cancer radiotherapy, which comprises a support tube, an extension tube is fixedly mounted in the support tube, an inflation component and an expansion component are respectively arranged inside and outside the extension tube, and the expansion component is communicated with the inflation component; the inflation assembly comprises an inflation tube, an inflation port and a first sealing plug, the inflation tube is fixedly installed in the supporting tube, and the inflation port is fixedly installed at the top end of the inflation tube. Then an inflation instrument inflates the inflation tube through the inflation port, after gas enters the annular inflation bag through the inflation tube, the annular inflation bag expands in the stomach of the patient, the annular inflation bag is tightly attached to the stomach wall of the patient by means of the size of the annular inflation bag, and therefore infusion is more stable when the first catheter and the second catheter are subsequently used for infusion; and subsequent multi-time adjustment by workers is not needed.

A device creates a sterile passage to perform natural orifice transluminal endoscopic surgery (NOTES). A balloon tube is connected with a fluid-impervious shroud to define an interior passage that is continuous and that can exclude pathogens. Two torus-shape balloons are arranged axially along the outside surface of the balloon tube and define a circumferential gap. In an exemplary use, an endoscope / laparoscope is inserted through the shroud and through the balloon tube. The endoscope / laparoscope, surrounded by the shroud, is inserted through a patient's mouth and advanced to a position in the stomach adjacent where a procedure will be performed in the peritoneum. The ballon tube is positioned through an incision in the stomach wall so that the wall is positioned in the gap between the balloons. The balloons are inflated to seal the balloon tube with the stomach wall to create a sterile pathway for surgical instruments.

The application relates to the technical field of medical image processing, in particular to a stomach CT image intelligent analysis system, which comprises a region segmentation module, a boundary line adjustment module, a boundary line determination module and an image analysis module; the region segmentation module is used for segmenting a CT image to obtain an initial boundary line; the boundary line adjustment module is used for adjusting the initial boundary line based on the feature similarity on both sides of the initial boundary line; the boundary line determination module is used for determining the initial boundary line as a target boundary line in the case that the initial boundary line meets a preset condition; and the image analysis module is used for performing image analysis on the CT image based on the target boundary line. The stomach CT image intelligent analysis system can improve the accuracy of distinguishing the lymphatic region and the stomach wall region.

The gastrostomy tube capable of measuring the stomach wall comprises a catheter, one end of the catheter is fixedly connected with a feeding cavity, the other end of the catheter is fixedly connected with a positioning balloon, the end, close to the positioning balloon, of the catheter is provided with scale marks used for measuring the thickness of the stomach wall, and the scale marks are fixedly arranged on the outer wall of the catheter. The catheter is in sliding connection with a measuring plate used for being matched with the scale marks to measure the thickness of the stomach wall. According to the gastrostomy tube, the scale marks and the measuring plate are arranged to measure the thickness of the stomach wall, in the operation process, the end, provided with the positioning balloon, of the catheter is inserted into the stomach of a patient, the positioning balloon is inflated through the inflation cavity and the air inlet pipe, the catheter is limited in the stomach of the patient, and then the measuring plate is moved to the scale marks to observe the position of the measuring plate on the scale marks; the thickness of the stomach wall can be measured through the gastrostomy tube inserted into the stomach of the patient, the process is simple, and consumed time is short.

An apparatus for treating obesity of an obese patient having a stomach with a food cavity, the apparatus comprising at least one volume filling device adapted to be at least substantially invaginated by a stomach wall portion of the patient. The volume filling device is adapted to be placed inside the stomach wall with the outer surface of the volume filling device resting against the inside of the stomach wall, such that the volume of the food cavity is reduced in size by a volume substantially exceeding the volume of the volume filling device, the volume filling device having a maximum circumference of at least 30 millimeters.

An implantable medical device for treating reflux disease, the implantable medical device comprising a movement restriction device (110) configured to be fixated to the stomach wall for hindering movement of the lower esophageal sphincter relative to the thoracic diaphragm. The movement restriction device comprises central part (111e), and at least two outer parts (111a-d) configured to be connected to each other along a vertical plane. The at least two outer parts are configured to be connected to the central part for forming at least a portion of a functional movement restriction device. The central part comprises at least one horizontally extending rim (151h1-4) and the central part has a contacting surface configured to contact at least one surface of the at least two outer parts, and wherein a portion of the horizontally extending rim is wedge-shaped with an angle in the range 20° - 60°.

The present invention relates to a system for simulating endoscopic ultrasound techniques, comprising an upper element (2) adapted to simulate a stomach wall and comprising a base (20), a first opening (21 ) for inserting an echoendoscope and a second opening (20') arranged on said base (20), a lower element (3) adapted to contain at least one element simulating a target intra-abdominal organ, said lower element (3) comprising a covering (30) and a third opening (30') arranged on said covering (30), said third opening (30') being connected to said second opening (20'), said upper element (2) and said lower element (3) being coupled to each other to form a simulating device (1 ).