34 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

An obesity treatment device is provided, the device comprising: at least one operable stretching device implantable in an obese patient and adapted to stretch a portion of the patient's stomach wall and an operation device for operating the stretching device when implanted to stretch the stomach wall portion such that satiety is created.

The invention discloses an improved beef cattle breeding device and method for animal husbandry, and relates to the technical field of animal husbandry. The improved beef cattle breeding device comprises a feeding fence and a rotating door, and the rotating door is rotatably installed on the surface of the feeding fence; the rotating rod is rotationally mounted at the bottom of the feeding fence, and the rotating rod is driven by a motor; the partition plate is fixedly mounted on the surface of the rotating rod; the feed trough is fixedly mounted in the feeding fence; the water tank is fixedly mounted in the feeding fence; a water tank is fixedly mounted on the outer wall of the feeding fence, a fixed frame is fixedly mounted at the top of the feeding fence, a reciprocating screw rod is fixedly mounted at the top of a rotating rod, and a movable frame is mounted on the surface of the reciprocating screw rod in a threaded mode, so that the situation that stomach burdens are possibly increased and stomach walls expand when cattle eat feed and drink a large amount of water at the same time is prevented; the normal function of the stomach is influenced. Long-term use may lead to gastrointestinal motility disorder, even gastrointestinal diseases.

In illustrative embodiments, an anchor device comprising an anchor assembly and a locking device connected via a single flexible strand fixes a stomach wall to an organ wall so that a stent may be positioned between the stomach (or duodenum) and the organ, such as a small intestine, or a gallbladder. An anchor assembly is implanted through the stomach wall into a wall of an internal organ for fixation of the stomach wall to the internal organ wall. Fixing the two organs together with the anchor device at the correct location prior to puncturing an opening between the two organs increases the ease and accuracy of making the incision in each of the organ walls. Fixation of the two organ walls with of the anchor device also simplifies the placement and deployment of the stent by reducing the shifting and movement of the organ walls relative to each other.

An automated magnetic endoscopy machine has a stationary disk that a person stands on that is surrounded by a rotating ring that has two telescoping poles, each having an electromagnet assembly with an actuator to raise and lower the electromagnet. Magnet current drivers adjust currents to the electromagnet to allow increased attraction to horizontally pull a swallowed capsule in the person's stomach. One actuator can move to a higher Z position than the other to pitch the capsule up, allowing imaging out of the horizontal plane. The rotating ring allows the electromagnets to rotate around a vertical axis. A sequence of rotational, Z, and radial / horizontal movements are performed by a control program that moves the capsule along paths in the stomach to capture images from cameras inside the capsule. The control program uses a laser in the capsule to map stomach walls before plotting paths through the stomach for imaging.

A system for treating obesity in a patient, comprising an implantable vibration device (110) configured to vibrate and thereby stimulate an appetite controlling portion of the stomach and / or intestine wall of the of the patient, wherein the implantable vibration device is configured to be at least partially invaginated by the tissue of the stomach wall or the intestine wall.

An intraluminar method of treating obesity of a patient, having with a food cavity, is disclosed. The method comprises the steps of creating a pouch made of a stomach wall portion of the patient, closing the pouch by sutures, staples or a fixation device, and placing a volume filling device in the pouch before or after closing the pouch, and thus invaginating the volume filling device in the pouch such that an outer surface of the volume filling device rests against an outer surface of the stomach wall.

The invention discloses a degradable biological membrane, a preparation method thereof and application of the degradable biological membrane in gastric resection precut marking, the degradable biological membrane is obtained by entrapping thrombin microcapsules and dye nanoparticles into gelatin for crosslinking, and the biological membrane can be placed into the abdominal cavity of a patient through a laparoscope troca. The normal saline is directly attached to the surface of the stomach after activating the adhesion layer, body temperature triggers dopamine oxidation adhesion and thrombin release, the material is degraded within 5-8 minutes to avoid interference to subsequent operation steps, methylene blue falls off on the stomach wall to form a pre-cutting line for excision positioning, precise excision of the stomach is achieved, and the operation quality and efficiency are improved.

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 biological medicines, and particularly relates to a chitosan-embedded probiotic gel microcapsule, a preparation method and application of the chitosan-embedded probiotic gel microcapsule in preparation of a helicobacter pylori infection resisting medicine. According to the invention, the superfine chitosan powder is used as a coating of the probiotic gel microcapsule, so that the interior of the microcapsule can be kept at a high pH value for a long time, and a good living environment is provided for probiotics; moreover, after the microcapsule enters a body, the chitosan powder on the periphery of the microcapsule is firstly in contact with a strong acid environment in gastric juice, and a certain buffer barrier is provided for the probiotics and the strong acid environment, so that the probiotics are prevented from being inactivated under the action of the strong acid gastric acid; meanwhile, the protonated chitosan shell plays a bridging role, so that the microcapsule is adsorbed on the stomach wall, and the residence time of the microcapsule in the stomach is prolonged, so that the ecological effect playing time of probiotics such as bacillus natto and the like in gastric juice is prolonged, and finally, a good helicobacter pylori inhibiting effect is achieved.

In illustrative embodiments, an anchor device comprising an anchor assembly and a locking device connected via a single flexible strand fixes a stomach wall to an organ wall so that a stent may be positioned between the stomach (or duodenum) and the organ, such as a small intestine, or a gallbladder. An anchor assembly is implanted through the stomach wall into a wall of an internal organ for fixation of the stomach wall to the internal organ wall. Fixing the two organs together with the anchor device at the correct location prior to puncturing an opening between the two organs increases the ease and accuracy of making the incision in each of the organ walls. Fixation of the two organ walls with of the anchor device also simplifies the placement and deployment of the stent by reducing the shifting and movement of the organ walls relative to each other.

A gastroscopic method and instrument for treating obesity of a patient, using a device adapted to stretch a part of the stomach wall of said patient. The method comprises the steps of: inserting the device into the stomach through the esophagus, placing the device in contact with the stomach wall, and fixating the device to the stomach wall such that the device can stretch a part of the stomach wall.

The invention relates to the technical field of health-care products, and discloses a hawthorn chewable tablet with an appetizing effect and a preparation method thereof.The hawthorn chewable tablet is formed by taking hawthorn powder as a main component and taking litsea cubeba essential oil coated freeze-dried powder, vitamin C, a flavoring agent and the like as auxiliary components through mixing, the Litsea cubeba essential oil can be adhered to the stomach wall to achieve the effect of continuously releasing the Litsea cubeba essential oil at a gastric ulcer target site, the antibacterial and anti-inflammatory effects of the Litsea cubeba essential oil can facilitate the repair of gastric tissues, and the Litsea cubeba essential oil can also regulate gastric acid secretion, so that further damage of excessive gastric acid to gastric mucosa is avoided; therefore, a good treatment effect on gastric ulcer is achieved.

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.

An automated magnetic endoscopy machine has a stationary disk that a person stands on that is surrounded by a rotating ring that has two telescoping poles, each having an electromagnet assembly with an actuator to raise and lower the electromagnet. Magnet current drivers adjust currents to the electromagnet to allow increased attraction to horizontally pull a swallowed capsule in the person's stomach. One actuator can move to a higher Z position than the other to pitch the capsule up, allowing imaging out of the horizontal plane. The rotating ring allows the electromagnets to rotate around a vertical axis. A sequence of rotational, Z, and radial / horizontal movements are performed by a control program that moves the capsule along paths in the stomach to capture images from cameras inside the capsule. The control program uses a laser in the capsule to map stomach walls before plotting paths through the stomach for imaging.

The utility model relates to the technical field of medical instruments, in particular to a telescopic puncture outfit which comprises a main body tube, a puncture tube, a rotating tube, a telescopic tube and a fixing mechanism, the puncture tube can extend out of or retract into the main body tube in the axis direction of the main body tube, and the rotating tube drives the puncture tube to move axially through self rotation. The puncture tube is sleeved with the telescopic tube, the telescopic tube and the puncture tube can stretch out and draw back synchronously, and the fixing mechanism is fixed to the bottom end of the puncture tube and used for fixing the puncture outfit and a puncture part when the telescopic tube is in a smooth state. According to the utility model, the puncture tube is extended or retracted by utilizing the relative rotation of the rotating tube and the puncture tube, so that the puncture outfit has two working states to respectively puncture an abdominal wall and a stomach wall, and the puncture outfit in the first working state and the puncture outfit in the second working state are respectively fixed through the telescopic tube and the fixing mechanism; the condition that both the abdominal cavity and the stomach need to be operated is met, and the stability of the puncture outfit is improved.

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 animal model for veterinary and medical practice (10), comprising: a set of internal organs (20) and a body frame (40), wherein the set of internal organs (20) is arranged within the body frame (40), wherein the set of internal organs (20) comprises internal organs comprising a lung (200), a stomach (220) and a set of urinary and reproductive organs (230), each organ being attached to one another and covered with para rubber (700), the body frame (40) comprises a head and neck part (400), a body part (440) and a leg part (460) which are connected to one another, wherein the head and neck part (400) comprises ears (402), a nose (404) with a nasal cavity (406), a mouth (408) with an oral cavity (409), a pharyngeal structure (470), a trachea (480) and an esophagus (490), wherein the nasal cavity (406) and the oral cavity (409) are connected to the pharyngeal structure (470), the trachea (480) and the esophagus (490), another end of the trachea (480) is connected to the lungs (200) and another end of the esophagus (490) is connected to the stomach (220), the body part (440) comprises an interior space comprising a chest cavity (444), an abdominal cavity (445) and a pelvic cavity (446) for supporting internal organs, the leg part (460) carries the head and neck part (400) and the body part (440), wherein the leg part (460) comprises at least two legs (462), the lung (200) comprises two sides of lung walls (201) which are connected to each other, wherein between the two sides of the lung walls (201) there is a cavity and a lung opening (202) for carrying an endotracheal tube (204), one end of the endotracheal tube (204) is attached to the lung opening (202) and another end of the endotracheal tube (204) is connected to the trachea (480), the stomach (220) comprises two sides of stomach walls (221) which are connected to each other, wherein there is a cavity between the two sides of the stomach walls (221) and an opening of the stomach (222) for carrying the esophageal catheter (224), wherein one end of the endotracheal tube (224) is attached to the opening of the stomach (222) and another end of the esophageal catheter (224) is connected to the esophagus (490), the set of urinary and reproductive organs (230) comprises a urinary bladder (240) connected to a male urinary organ (250), wherein the urinary bladder (240) has a bag-like shape resembling a sphere which is hollow inside and has an opening of the urinary bladder (242) to be connected to the male urinary organ (250), wherein the male urinary organ (250) has the shape of a long rod which is hollow inside, has two sides of open ends, the first side of the open end (252) is connected to the opening of the urinary bladder (242) and the second side of the open end (254) serves to carry the urinary catheter when practicing clinical skills, wherein inside the male urinary organ (250) rubber tubes (256) are arranged along the line, wherein one end of a rubber tube (257) is inserted into the urinary bladder (240) and another end of the rubber tube (258) protrudes from the body frame (40),for wearing the urinary catheter while practicing clinical skills.

The utility model relates to the technical field of medical instruments, in particular to an electric resection dilator for drainage of a lower biliary tract, a pancreatic duct and a pseudocyst under the guidance of an ultrasonic endoscope, and solves the technical problems that when interventional ultrasonic endoscope treatment is carried out, the instruments need to be transferred to corresponding parts, however, most electric resection dilators are often large in pipe diameter, and in the treatment process, the dilator cannot be transferred to the corresponding parts. The risks of biliary fistula and pancreatic fistula are easily increased, and the situations that the stomach wall cannot be penetrated and the distance between the stomach wall and an endoscope is increased easily occur; according to the technical scheme, the stomach wall-biliopancreatic duct electric excision dilator under the disposable endoscope comprises a power source assembly, a control assembly, an injection assembly, a guide wire assembly, a supporting assembly and an electric excision assembly. Compared with a traditional electric resection dilator which is inconvenient to use and prone to causing operation risks, the electric resection dilator has the advantages that by means of the mode of integrating electric resection and physical dilation, instrument exchange can be quicker and smoother, operation time is effectively shortened, postoperative complications are reduced, and practical value of the dilator is enhanced.