43 results about "Gastric lumen" patented technology

The invention discloses a gastric retention capsule robot and a gastric retention capsule device, and relates to the technical field of medical instruments, the gastric retention capsule robot comprises a capsule shell, a robot body, an unfolding arm, a driving mechanism and a restoring mechanism; the robot body is arranged in the capsule shell, and a carrying module used for carrying the functional module is arranged on the robot body; the unfolding arm is movably arranged on the robot body; the driving mechanism is arranged on the robot body, and after the capsule shell is dissolved, the driving mechanism can drive the unfolding arm to unfold towards the outside of the robot body so as to limit discharging of the robot body; the restoring mechanism is arranged on the robot body and can fold the unfolding arm to be attached to the robot body so that the robot body can be discharged. The device can be detained in the stomach and can be discharged from the gastral cavity through active folding, the timeliness is good, the risks of gastrointestinal tract blockage, mechanical injury and the like existing in a passive discharging mode are avoided, and the personal safety of a patient is guaranteed.

The invention provides a transgastric laparoscopic surgery puncture outfit with anti-slip and fixing functions, which overcomes the surgery difficulties that a traditional puncture outfit cannot puncture into a gastral cavity, the gastral cavity cannot be tightly attached to an abdominal wall after puncture, and contents in the stomach easily flow back into an abdominal cavity through the puncture outfit to cause pollution and the like, and the puncture outfit enables the new technical surgery process to be more simplified, safer and more effective. Comprising a cannula assembly and a puncture assembly, the cannula assembly comprises a cannula seat and a cannula arranged at one end of the cannula seat, the puncture assembly comprises a puncture handle and a puncture needle arranged at one end of the puncture handle, and the puncture needle penetrates through the cannula in a sliding mode. The phenomenon that the cannula slides out of the gastral cavity, and the stomach and other visceral organs and blood vessels of a patient are injured due to repeated puncture can be effectively avoided, the situation that the whole puncture outfit is taken out when the instrument is pulled outwards is avoided, it is guaranteed that the percutaneous laparoscopic surgery is conducted smoothly, and the pain of the patient is relieved; the structure is simple, operation is convenient, time and labor are saved, and the protective fixing effect and the operation efficiency of the cannula are improved; the skin incision can be pulled, and the fixing effect is improved.

The invention discloses a gastroscope auxiliary detection method and system based on artificial intelligence, and relates to the technical field of gastroscope detection. The method comprises the following steps: acquiring a real-time image after a gastroscope enters a gastral cavity of a patient, and constructing a stomach model of the patient; according to real-time image evaluation, obtaining stomach lesion points, and extracting the stomach lesion points observed at the path reference points in a non-shielding manner as observation lesion points; counting the number of observation lesion points corresponding to the path reference points, and screening to obtain path points; forming a plurality of path reference lines according to the path points, and selecting to-be-selected path lines without missing detection; analyzing the observation careful degree of the to-be-selected path line on the stomach lesion point, and screening to obtain a primary path line; acquiring a facial image of the patient, judging to obtain the gastric mucosa sensitivity of the patient, and evaluating the operation stimulation degree of the primary path line; and selecting an optimal gastroscopy path line and sending the optimal gastroscopy path line to a user side to prompt an operation doctor. According to the gastroscopy bed, the comfort of a patient in gastroscopy is improved.

The invention provides a device for testing the pressure of a Sengstaken-Blakemore stomach tube and a using method, the device comprises a conveying tube, a gastral cavity tube, a stomach pouch tube and an esophageal pouch tube, one end of the conveying tube is sleeved with the gastral cavity tube; a gastric sac tube and an esophageal sac tube are inserted into two sides of one end of the gastral cavity tube; a buckle assembly, a first anti-pulling assembly and a second anti-pulling assembly are arranged at one end of each conveying pipe. One end of the gastric pouch tube is sleeved with a first digital pressure gauge; and one end of the esophageal balloon tube is sleeved with a second digital pressure gauge. Through the arrangement of the first digital pressure gauge, the second digital pressure gauge and the clamping plate, it can be guaranteed that the tail end of the conveying pipe is prevented from leaking in the gas detection process, operation can be conducted easily and simply in the sealing process of the tail end of the conveying pipe, manual holding is not needed, and the work progress is accelerated.

The invention provides a three-cavity two-balloon stomach tube which comprises a conveying pipeline, a stomach cavity tube is arranged at the head end of the conveying pipeline, a stomach balloon inflation tube and an esophageal balloon inflation tube are inserted into the two sides of the outer surface of one end of the stomach cavity tube in a penetrating mode, and a dimension line is arranged on the outer side face of the other end of the conveying pipeline; a limiting assembly is arranged at the tail end of the conveying pipeline, a first supporting assembly and a second supporting assembly are arranged at the head end of the conveying pipeline, through limiting of a limiting sleeve shell, the phenomenon that the Sengstaken-Blakemore tube is inserted too long by practice medical staff can be avoided, the operation correctness is improved, and the phenomenon that after the Sengstaken-Blakemore tube is inserted, the medical staff cannot work normally is avoided. And the phenomenon of continuous insertion occurs, so that the patient can be protected.

The invention relates to the technical field of medical instruments, in particular to a nasal gastrointestinal tube with a tube diameter conversion function, which comprises an intestinal tube and a stomach tube, one end of the stomach tube is connected with a reducer tube, the diameter of one end of the reducer tube is the same as that of the intestinal tube, and the stomach tube is connected with the intestinal tube through the reducer tube; an enteric cavity is formed in each of the stomach tube and the reducer tube, a stomach cavity is formed in one side of each enteric cavity, an air inlet cavity is formed in one side of each stomach cavity, a stomach cavity closing wall is arranged between each enteric cavity and the corresponding stomach cavity, and an air inlet cavity closing wall is arranged between each enteric cavity and the corresponding air inlet cavity. According to the multi-cavity nasal gastrointestinal tube, conversion transition from a multi-cavity tube to a single-cavity tube is smoother, and damage of the outside of the tube body to a human body is greatly reduced; the gastrointestinal tube is welded into a whole, no additional adapter substitute is needed, the inner diameter of the intestinal tube body is effectively enlarged, and sufficient drainage, administration and nutrition delivery are achieved.

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 utility model relates to the field of medical instruments, and discloses a nasal gastrointestinal tube multifunctional connector which comprises a connector body, a one-way valve is arranged at the top end of the connector body, a nutrition catheter is fixedly connected to the bottom end of the connector body, a liquid extraction gastral cavity is fixedly connected to one side of the connector body, and the liquid extraction gastral cavity is fixedly connected to the other side of the connector body. The other side of the connector body is fixedly connected with a nutrition enteric cavity, the outer wall of the nutrition catheter is provided with an external thread, the outer wall of the external thread is in threaded connection with a threaded sleeve, the outer wall of the threaded sleeve is provided with an elastic band, and the outer wall of the elastic band is fixedly connected with a first fixing piece. According to the utility model, by arranging the structures such as the external thread, the threaded sleeve, the elastic band, the fixing piece I and the fixing piece II, the connector can be adjusted and fixed beside the body of a user according to the operation convenience of a worker, so that the stability of the connector main body when gastric juice is sucked and nutrient solution is conveyed to the intestinal tract is ensured, and the stability and the safety of a pipeline are ensured.

This invention relates to the field of gastric residual volume detection technology, specifically a Bluetooth transmission device for ultrasound monitoring of gastric residual volume during enteral nutrition for infants and young children. The device includes a main body structure and a transmission device-mounted control system. The control system includes an ultrasound signal acquisition module, a signal processing module, a Bluetooth transmission module, a residual volume calculation module, and a graded alarm module. This invention achieves this by selecting a target frequency band to match the acoustic impedance characteristics of gastric fluid, dynamically tuning the probe's transmission power based on abdominal wall thickness to reduce gas and tissue interference and improve signal accuracy. It corrects signal mapping deviations based on a three-dimensional gastric cavity model, compensates for postural shifts, generates a gastric fluid distribution model to enhance accuracy, dynamically segments data packets and embeds time-series tags to ensure complete transmission and anti-interference capabilities, combines intake rate and gastric emptying curve correction parameters to quantify volume and compensate for errors, improving calculation reliability, and generating graded alarm commands to link with clinical operations.

The present invention discloses an asymmetric anastomat with anti-reflux effect for esophagogastric anastomosis, the improvements lie in that the end face of a nail bin is formed by two arc-shaped plates that are bent towards the same direction and connected and closed in an end-to-end manner to form an arc-shaped cavity, nail outlet holes in the arc-shaped plates are provided around the arc-shaped cavity, and a cutter is consistent with the arc-shaped cavity in shape and is attached to the edge of the inner side wall of the arc-shaped cavity; a stapling anvil plate on the bottom face of the nail abutting base is formed by working out a cutting groove in a circular plate, the shape of the cutting groove is consistent with the shape of the arc-shaped cavity in the end face of the nail bin, and nail abutting grooves that match the nail outlet holes in position and shape are formed in the stapling anvil plate. After anastomosis with the asymmetric anastomat for esophagus and stomach in the present invention, redundant esophageal and gastric tissues on the anterior wall are deformed into the stomach to form a tongue piece by suturing to a seromuscular layer, and, in conjunction with manual folding and suturing at the posterior wall, valvula-like tongue pieces that are closed towards each other are formed in the stomach cavity, so that a valvula-like structure is formed together. The anastomotic stoma passage is in a valvula-like closed state when no food is eaten, and the anastomotic stoma is opened due to the peristalsis pressure of the esophagus and an expansion effect of a food mass during eating, so that a cardia-like effect of preventing stomach-esophageal reflux is achieved.

The ascites stomach drainage support comprises a drainage channel, and a one-way valve body structure used for draining ascites into a gastral cavity in a one-way mode is arranged in the drainage channel. The one-way valve body structure comprises a conical flow guide head, a flow guide opening is formed in the end of the conical flow guide head, a supporting rubber sleeve is arranged in a drainage channel on one side of the conical flow guide head, an integrally-formed sealing gasket is arranged in the supporting rubber sleeve, and the sealing gasket is attached to the outer surface of the conical flow guide head. Four tearing seams are formed in the center of the sealing gasket at equal intervals, the sealing gasket is divided into four sealing petals by the tearing seams, and the sealing petals are all connected with the flow guide opening through an automatic adjusting assembly; the two sides of the drainage channel are each provided with a gastral cavity tail hook structure and an abdominal cavity tail hook structure, the gastral cavity tail hook structures and the abdominal cavity tail hook structures are used for positioning the drainage channel, ascites in the abdominal cavity can be drained into the gastral cavity, multiple times of puncture or external drainage of a patient can be avoided, contained objects in the gastral cavity cannot reversely flow into the abdominal cavity, and drainage safety is guaranteed.

The utility model discloses a double-interface side hole type nutrition pusher which comprises a nutrition tube, a supporting tube and a path finding guide tube, the supporting tube is movably arranged in the nutrition tube in a penetrating mode, and the path finding guide tube is movably arranged in the supporting tube in a penetrating mode. The nutrient canal is of a two-way joint structure and comprises a first sleeve joint formed by the near end of the nutrient canal and a second sleeve joint located on one side of the first sleeve joint, and a plurality of first interlayer side holes are formed in the near end of a canal body of the nutrient canal. The nutrient canal adopts the structural design of double interfaces, double cavities and the near-end side hole, the far end of the nutrient canal is arranged in the jejunum and can be used as the nutrient canal, the farthest end of the side hole is provided with an MARK mark, and the MARK does not exceed the pylorus when the nutrient canal is arranged, so that the side hole is positioned in the gastral cavity and is used for gastrointestinal decompression, and the nutrient canal is particularly suitable for patients suffering from gastric paralysis and needing enteral nutrition.

The invention discloses digestive tract hemorrhage suction equipment which comprises a suction assembly fixedly arranged on the side edge of a gastroscope, and the suction assembly and the gastroscope are fixed through a fixing part. The outer surfaces of the gastroscope and the suction assembly are fixedly coated with a coating layer; a stirring assembly is arranged in the suction assembly; in order to solve the problems that in the prior art, a suction hole channel of a common gastroscope is too small, and the blood clot suction efficiency is low, the suction assembly is designed, the suction head end of the suction assembly can be fixed to the front end of the gastroscope through combination and fixation between the suction assembly and the gastroscope and arrangement of an external coating layer, and the suction efficiency of the gastroscope is improved. The gastral cavity aspirator is provided with the aspirating assembly, so that hematocele in the gastral cavity can be effectively aspirated, the stirring assembly is arranged, large blood clots can be stirred and broken, and therefore it is guaranteed that when massive blood clots are formed, effective aspiration can also be guaranteed.

The utility model belongs to the technical field of medical instruments, and particularly relates to a gastroscope diagnosis and treatment nursing operation model which comprises a lower model block, an upper model block and a stomach model, wrapping blocks used for wrapping the stomach model are installed on the inner wall of the lower model block and the inner wall of the upper model block, and water conveying pipes are installed in the wrapping blocks. The two ends of the water conveying pipe are fixedly connected with heating pieces used for controlling the water temperature, a plurality of polyp models are arranged on the inner wall of the gastric mucosa model, and the top of the upper model block is connected with a cover plate in a clamped mode. The stomach environment is simulated through the stomach model, the gastric mucosa model and the polyp model, the gastric mucosa model and the polyp model are detachably installed in a matched mode, adjustment can be conveniently conducted according to various environments of the stomach, the upper part is transparent, a nurse can still have the hand feeling of operation in the gastral cavity, the temperature of the stomach model can be increased under wrapping of the wrapping block, and the working efficiency of the nurse is improved. And the stomach environment temperature during training can be correspondingly simulated.

The invention belongs to stomach tubes, and particularly relates to a neonatal tube feeding and drainage integrated device which comprises a middle tube body composed of a first channel and a second channel which are independent from each other. The external joint comprises a first joint and a second joint; the far-end connector covers the ends of the first channel and the second channel, one end of the first channel is communicated with the interior of the far-end connector, the other end of the first channel is communicated with the first connector, one end of the second channel is communicated with the interior of the far-end connector, and the other end of the second channel is communicated with the second connector. The first channel and the second channel on one side of the external joint are not communicated with each other so as to avoid flow path interference; the far-end connector and the channel are provided with a first through hole and a second through hole which are used for being communicated with a gastral cavity. The state switching sealing assembly is arranged, so that the device closes the second channel in the first state so as to achieve stomach gas discharge during feeding, the first channel and the second channel are communicated in the second state so as to achieve gastric juice suction, the risks of abdominal distension, backflow and aspiration are reduced, and state switching is simple, rapid and effortless.

The three-cavity jejunum nutrient canal comprises a pressure reduction cavity, and a gastral cavity and an intestinal cavity are formed in the pressure reduction cavity; a micro pump is arranged on the inner wall of the decompression cavity; a pressure-sensitive element patch is arranged at the end of the pressure reduction cavity, a negative pressure suction device is arranged at the end, away from the pressure-sensitive element patch, of the pressure reduction cavity, and the pressure-sensitive element patch is electrically connected with the negative pressure suction device. The ends, close to the negative pressure suction device, of the gastral cavity and the enteric cavity penetrate through the outer wall of the decompression cavity; the end, close to the negative pressure suction device, of the gastral cavity is provided with a medicine conveying connector, and the end, close to the negative pressure suction device, of the enteric cavity is provided with a nutrient solution conveying port. The negative pressure suction device comprises a one-way connector connected with the end of the decompression cavity, a liquid collecting bag is arranged at the end, away from the decompression cavity, of the one-way connector, and a negative pressure pump is arranged at the end, away from the one-way connector, of the liquid collecting bag. According to the three-cavity jejunum nutrition tube, pressure reduction, medicine conveying and nutrient solution supply are synchronously carried out, and the treatment efficiency and the living quality of a patient are greatly improved.

The invention discloses a gastrostomy tube system and an operation method. The gastrostomy tube system comprises a stomach tube assembly and a puncture assembly, the stomach tube assembly comprises a stomach tube body, an anchoring structure and an outer fixing part, the anchoring structure is arranged at the first end of the stomach tube body and used for stretching into a gastral cavity along with the first end of the stomach tube body and being fixed in the gastral cavity, the anchoring structure is made of memory alloy, and the outer fixing part is arranged at the second end of the stomach tube body. The outer fixing piece can deform under the body temperature environment to increase the section size, is arranged on the stomach tube body in a position adjustable mode and is used for being tightly attached to the outer side of the abdominal wall; the puncture assembly comprises a puncture needle and a guide wire, the guide wire can penetrate into the puncture needle, and the guide wire is used for penetrating into the puncture needle and guiding the anchoring structure and the first end of the stomach tube body to penetrate into. According to the stomach tube, the anchoring structure is arranged at the first end of the stomach tube body and is made of the memory alloy, so that the stomach tube body can be automatically deformed and unfolded to anchor the stomach tube body when the stomach tube is placed in a gastral cavity, the fixation is more reliable, and effective fixation can be kept for a long time.

The invention relates to the technical field of stomach residual volume detection, in particular to ultrasonic stomach residual volume monitoring Bluetooth transmission equipment for infant enteral nutrition. The equipment comprises a body structure and a transmission equipment carrying control system, wherein the transmission equipment carrying control system comprises an ultrasonic signal acquisition module, a signal processing module, a Bluetooth transmission module, a residual volume calculation module and a grading alarm module. According to the method, the target frequency band is screened to be matched with the acoustic impedance characteristics of the liquid in the stomach, the transmitting power of the probe is dynamically tuned in combination with the abdominal wall thickness, gas and tissue interference is reduced, signal precision is improved, signal mapping deviation is corrected based on the gastral cavity three-dimensional model, body position deviation is compensated, the liquid distribution model in the stomach is generated, and accuracy is enhanced; data packets are dynamically segmented, time sequence labels are embedded, transmission completeness and interference resistance are ensured, parameters are corrected by combining the intake rate and a gastric emptying curve, the volume is quantified, errors are compensated, the calculation reliability is improved, and graded alarm instructions are generated to be linked with clinical operation.

This invention discloses a pediatric double-balloon catheter for esophageal and gastric pressure monitoring, comprising an outer sheath and an inner core tube. Both ends of the outer sheath are open. The inner core tube is slidably inserted into and passes through the outer sheath. One end of the outer sheath is provided with a dynamic locking component for fixing the inner core tube, and the inner circumferential wall of the other end of the outer sheath is in a sealed sliding fit with the outer circumferential wall of the inner core tube. An esophageal pressure inflation / measurement connector is located on the exterior of the outer sheath near the dynamic locking component, and an esophageal pressure balloon is circumferentially sealed on the exterior of the outer sheath away from the dynamic locking component. This invention solves the clinical problem of traditional fixed-spacing catheters, which cannot simultaneously ensure accurate placement of the esophageal balloon in the lower esophagus and complete placement of the gastric balloon within the gastric cavity, making the same catheter applicable to a wide age range from newborns to adolescents.

The invention discloses a gastric emptying parameter detection system for gastric ultrasonic examination, and belongs to the field of medical images. The gastric emptying parameter detection system for the gastric ultrasonic examination comprises an ultrasonic image acquisition module, an image processing module and a gastric emptying parameter calculation module. The problem that an existing gastric emptying function detection method has limitation is solved, standard section image acquisition can be accurately carried out on the antral sinus part before and after each drinking node through the image acquisition module, and the image processing module extracts and draws gastral cavity boundaries in a time sequence ultrasonic image through an image segmentation algorithm; the gastric emptying parameter calculation module calculates gastric emptying parameters including initial emptying time, emptying curve slope, semi-emptying time, emptying rate at a specific time point and the like based on gastral cavity area data of a time sequence, and the gastric emptying parameter calculation module calculates the gastric emptying parameters including the initial emptying time, the emptying curve slope, the semi-emptying time, the emptying rate at the specific time point and the like based on the gastric cavity area data of the time sequence, so that the accuracy and reliability of gastric emptying area measurement are improved. And objective evaluation of the gastric emptying function can be realized.

The present application relates to the field of medical devices, in particular to a guide wire, a guide device and a jejunostomy system, comprising the following components: a main guide wire, which is bendable; a release point, which is located on the main guide wire and can be disconnected to divide the main guide wire into two segments; a capture point, which is located on the main guide wire and is staggered with the release point. The present application can guide the jejunum feeding tube inserted into the stomach cavity to smoothly insert into the jejunum, without cutting the jejunum, greatly reducing the intubation difficulty of the jejunum feeding tube, without causing additional trauma to the patient, avoiding additional gastric stoma hole trauma caused by unsuccessful surgery, and achieving minimally invasive implantation with a simple implantation process.

The utility model provides a side-hole-free type enteral nutrition pusher. The side-hole-free type enteral nutrition pusher comprises a nutrition tube, a supporting tube and a pathfinding catheter which are sequentially arranged from inside to outside, the supporting tube is movably arranged in the nutrient tube in a penetrating manner so as to search the pylorus or the output loop after reaching the gastral cavity position; the pathfinding catheter is movably supported within the tube to enter the duodenum and advance to the jejunum position after reaching the pylorus position. According to the utility model, the pylorus or the output loop can be found, the operation difficulty of the nutrient canal and the discomfort of a patient caused by repeatedly rubbing the nasal cavity in the operation process are reduced, and the nutrient canal also plays a good auxiliary role in passing through the narrow section of the intestinal tract; the far end of the nutrition tube without the side hole structure design reaches the jejunum and can be directly used as a nutrition delivery tube, and the nutrition tube is particularly suitable for pancreatitis patients who are coma or cannot eat independently and need jejunum nutrition support.

The application discloses a gastrointestinal wall suture anchoring device, which comprises a suture anchor and a guide wire; the suture anchor comprises a puncture needle, a suture line and an anchor nail, the anchor nail is arranged at one end of the puncture needle, the suture line is arranged on one side of the puncture needle, and the suture line is connected with the anchor nail; as the gastrointestinal wall suture anchoring device, the suture anchor is used for fixing the stomach wall of a patient before fistulization surgery, which is beneficial to the smooth operation of the surgery and the postoperative recovery of the patient after recovery; a plurality of suture anchors are simultaneously used in cooperation, so that the fixing effect is better; the anchor nail is guided into the stomach cavity of the patient through the guide wire, and the stomach wall of the patient can be effectively fixed through the push and pull of the guide wire and the suture line, the operation is simple, and the damage to the patient is minimized.

The invention provides an auxiliary gastric emptying device. The auxiliary gastric emptying device comprises a main catheter, a cardia airbag and a pylorus airbag, wherein the main catheter comprises a pyloric airbag tube, one end of the pyloric airbag tube is provided with an inflation inlet, and the other end or the middle of the pyloric airbag tube is communicated with a pyloric airbag; the main catheter further comprises a cardia airbag tube, one end of the cardia airbag tube is provided with an inflation inlet, and the other end or the middle of the cardia airbag tube is communicated with the cardia airbag; the main catheter further comprises a gastral cavity inflation tube, an inflation inlet is formed in one end of the gastral cavity inflation tube, and an exhaust hole is formed in the other end or the middle of the gastral cavity inflation tube and used for being formed in the gastral cavity so that the gastral cavity can be inflated and pressurized. The cardia air bag is used for being arranged at the position of a cardia so that the cardia air bag can seal the cardia in an inflated state. The pyloric air bag is used for being arranged at the pyloric position and provided with a drainage channel, so that the pyloric air bag expands the pyloric position in the inflated state, and gastric juice in the gastral cavity can be discharged out of the gastral cavity through the drainage channel in the inflated and pressurized state; the device can assist the gastral cavity in discharging gastric juice, and is beneficial to shortening the rehabilitation time.

The present invention discloses an asymmetric anastomat with anti-reflux effect for esophagogastric anastomosis, the improvements lie in that the end face of a nail bin is formed by two arc-shaped plates that are bent towards the same direction and connected and closed in an end-to-end manner to form an arc-shaped cavity, nail outlet holes in the arc-shaped plates are provided around the arc-shaped cavity, and a cutter is consistent with the arc-shaped cavity in shape and is attached to the edge of the inner side wall of the arc-shaped cavity; a stapling anvil plate on the bottom face of the nail abutting base is formed by working out a cutting groove in a circular plate, the shape of the cutting groove is consistent with the shape of the arc-shaped cavity in the end face of the nail bin, and nail abutting grooves that match the nail outlet holes in position and shape are formed in the stapling anvil plate. After anastomosis with the asymmetric anastomat for esophagus and stomach in the present invention, redundant esophageal and gastric tissues on the anterior wall are deformed into the stomach to form a tongue piece by suturing to a seromuscular layer, and, in conjunction with manual folding and suturing at the posterior wall, valvula-like tongue pieces that are closed towards each other are formed in the stomach cavity, so that a valvula-like structure is formed together. The anastomotic stoma passage is in a valvula-like closed state when no food is eaten, and the anastomotic stoma is opened due to the peristalsis pressure of the esophagus and an expansion effect of a food mass during eating, so that a cardia-like effect of preventing stomach-esophageal reflux is achieved.

The utility model discloses an improved endoscopic outer sleeve catheter, which belongs to the technical field of endoscopic treatment, and comprises an outer sleeve catheter main body, four support chambers which are annularly and uniformly distributed are arranged in the sleeve wall of the outer sleeve catheter main body, penetrating openings are arranged on the inner walls of the support chambers, support steel wires are embedded in the support chambers, and the support steel wires are arranged in the penetrating openings. One end of each supporting steel wire penetrates through the penetrating opening and extends outwards, the four supporting steel wires can be firstly detached from the outer sleeve catheter body, the flexibility of the outer sleeve catheter body is improved, the intestinal canal is prevented from being damaged, the outer sleeve catheter body enters the esophagus stomach and the small intestine along with an endoscope, and then the supporting steel wires can be inserted into the supporting cavity from the penetrating opening one by one. Therefore, the supporting force of the outer sleeve catheter main body is improved, and the endoscope is prevented from bending and circling in the gastral cavity.

The invention discloses a stomach tumor model manufacturing method and a mold, and belongs to the field of tumor models.The stomach tumor model manufacturing method comprises the steps of mold assembling, local gastral cavity forming, stomach tumor simulation, second mold core manufacturing, overall gastral cavity forming, second mold core removing and the like. The shape and hardness of the manufactured stomach tumor model can be adjusted, and the lesion position can be preset.

Embodiments of the present application provide a gastric mucosa image positioning method, device, computer equipment and storage medium. The gastric mucosa image positioning method comprises: acquiring a gastroscope image to be positioned for gastric mucosa foreign matter; identifying a gastric cavity anatomical part and gastric mucosa foreign matter in the gastroscope image; calculating a distance value of the gastric cavity anatomical part and the gastric mucosa foreign matter; determining a reference gastric cavity anatomical part according to the distance value, the reference gastric cavity anatomical part being a reference for positioning the gastric mucosa foreign matter; and determining a relative position of the gastric mucosa foreign matter and the reference gastric cavity anatomical part. Embodiments of the present application can obtain the relative position and distance of the gastric mucosa foreign matter and the gastric cavity anatomical part, and provide an important basis for accurately judging the position of the gastric mucosa foreign matter.

The invention relates to the technical field of drainage tubes, in particular to a double-cavity tube for esophagus flushing, aspiration prevention and gastrointestinal decompression drainage. The technical scheme comprises a first inner pipe. Through the design of the first inner tube, the second outer tube, the first flushing hole, the second flushing hole, the scale marks, the air bag, the air bag tube, the esophagus flushing tube and other structures, when the esophagus flushing mistaken-suction-preventing and gastrointestinal decompression drainage double-cavity tube needs to be used, the esophagus flushing mistaken-suction-preventing and gastrointestinal decompression drainage double-cavity tube needs to be used; the double-cavity air bag tube is provided with a medical silicone tube which is placed into the esophagus and the gastral cavity from the oral cavity or the nasal cavity of a human body and has the length of 60-100 cm, and an inner cavity is connected with a negative pressure drainage device. In this way, the inner cavity is used for cleaning and decompression drainage of the stomach, and the outer cavity is used for flushing the esophagus. The double-cavity structure combining the inner cavity and the outer cavity is adopted, and flushing, pressure reduction and drainage of the esophagus and the stomach are effectively achieved. In addition, in the whole process of flushing the esophagus or the stomach, flushing objects can be effectively prevented from flowing back, and asphyxia is prevented.

The present application provides a kind of gastric laparoscopic surgery puncture device with anti-skid fixing function, overcome the traditional puncture device cannot be punctured into stomach cavity, stomach cavity cannot be close to abdominal wall after puncture, gastric contents easily reflux into abdominal cavity through puncture device and cause pollution etc. Surgical difficulties, this puncture device makes this new technology surgical procedure more simplified, safe and effective. Including sleeve assembly and puncture assembly, sleeve assembly includes sleeve seat and sleeve arranged at one end of sleeve seat, puncture assembly includes puncture handle and puncture needle arranged at one end of puncture handle, and puncture needle is slidably arranged in sleeve. The present application can effectively avoid the phenomenon that sleeve slides out from stomach cavity, repeatedly punctures and damages stomach and other organs and blood vessels of patient, avoid pulling out the whole puncture device when pulling out the equipment, ensure that gastric laparoscopic surgery is carried out smoothly, reduce the pain of patient;Simple structure, convenient operation, save time and effort, improve the protection and fixing effect of sleeve and surgical efficiency;Can pull the skin incision, improve the fixing effect.