Endoscopic gastrointestinal polyp resection device

Abstract

The invention discloses an endoscopic gastrointestinal polyp excision device, and belongs to the technical field of medical equipment, the endoscopic gastrointestinal polyp excision device comprises an endoscopic tube, an excision assembly, a stamping air bag and a connecting rod, the excision assembly is mounted on the endoscopic tube, the air bag is connected with the excision assembly through the connecting rod, and the stamping air bag is inflated by designing the stamping air bag, so that the air bag is expanded; according to the gastrointestinal polyp excision device under the endoscope, the front end of the excision assembly is pressed downwards and tightly attached to the gastrointestinal polyp tissue wall, and therefore the excision angle and the excision position of the gastrointestinal polyp excision device under the endoscope are determined, the excision direction and the excision angle of gastrointestinal polyp excision under the endoscope are guaranteed, and the problems of deflection and incomplete excision in the excision process are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to an endoscopic gastrointestinal polyp removal device. Background Art

[0002] Gastrointestinal polyps refer to raised mutations protruding from the surface of the gastrointestinal mucosa, which can occur in the esophagus, stomach, small intestine and large intestine. Some polyps have the potential to become malignant, especially adenomatous polyps, which are considered to be precancerous lesions of malignant tumors such as colorectal cancer. Therefore, timely detection and removal of polyps are of great significance for preventing the occurrence of gastrointestinal malignancies. Polyps can also cause a series of clinical symptoms, such as abdominal pain, diarrhea, blood in the stool, intestinal obstruction, etc., affecting the patient's quality of life and health.

[0003] With the continuous development of endoscopic technology, people have begun to explore safer and more effective methods of polypectomy. At present, cold snare resection has been widely used in the treatment of gastrointestinal polyps in medical institutions at all levels. When doctors find small polyps during endoscopic examination, they can immediately use cold snare resection to remove them, avoiding the pain and risk of patients undergoing another surgery. Cold snare resection can also be combined with other endoscopic techniques, such as endoscopic staining and magnifying endoscopy, to improve the detection rate and diagnostic accuracy of polyps.

[0004] After research, the inventors found that the existing devices have the following problems: 1. The resection effect is difficult to control: for polyps with irregular shapes, lobed or flat, the cold snare may be difficult to accurately fit the contour of the polyp for resection, which may result in incomplete resection; 2. The resection angle is difficult to control: the cold snare requires a certain level of technical skills and operating experience to cut polyps. The doctor needs to accurately put the snare around the polyp and master the appropriate cutting force and angle to ensure complete resection of the polyp and avoid complications. For beginners, it may take a long time of learning and practice to master the cold snare technology, which to a certain extent limits the widespread application of this technology.

[0005] Therefore, there is a need for a gastrointestinal polypectomy device that can ensure the resection angle and efficiently remove the polyps. Summary of the invention

[0006] In response to the above-mentioned technical problems, the present invention aims to provide an endoscopic gastrointestinal polypectomy device that can efficiently remove polyps and avoid slipping and jamming during removal. After the device is in place, it can ensure the direction and angle of removal and avoid deviation during the removal process and incomplete removal.

[0007] The main idea of ​​the technical solution adopted by the present invention is: based on the technical problems that the resection effect and the resection angle of the existing devices are difficult to control, an endoscopic gastrointestinal polypectomy device is designed, which includes a stamping airbag. The stamping airbag is connected to the resection component through a connecting rod. When in use, the stamping airbag is inflated at the distal end, and the stamping airbag expands, so that the front end of the resection component is pressed down and tightly adheres to the gastrointestinal polyp tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polypectomy device of the present invention, ensuring the resection direction and resection angle of endoscopic gastrointestinal polypectomy, and avoiding the problems of deviation and incomplete resection during the resection process.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows: An endoscopic gastrointestinal polyp resection device comprises: an endoscope tube, a resection component, wherein the resection component is installed on the endoscope tube, and is characterized in that the device also comprises a stamping airbag and a connecting rod, wherein the airbag is connected to the resection component via the connecting rod, and the airbag is used to determine the resection angle and resection position of the endoscopic gastrointestinal polyp resection device.

[0009] Through the design of the stamping airbag, in actual implementation, the endoscopic gastrointestinal polyp resection device is loaded into the endoscope operation channel, and the endoscope is sent to the lesion area, such as the intestinal polyp or gastric polyp site; the device is pushed out of the endoscope tube by remote operation, and the resection component is sleeved on the periphery of the gastrointestinal polyp; after adjusting the angle of the endoscope and the device to meet the operation angle and position, the inflatable airbag is inflated from the remote end, and the airbag is inflated and expanded, so that the front end of the device is pressed down and tightly attached to the gastrointestinal polyp tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polyp resection device of the present invention.

[0010] Through the above technical solution, further: the cutting assembly includes: a cold snare, a cold cutting blade is provided on the inner side of the cold snare, and the cold snare is provided with an air inlet hole, and the air inlet hole is used to inflate and deflate the airbag.

[0011] The cold snare is provided with an air inlet hole, so that the stamping airbag can be inflated and deflated through the air inlet hole. After the stamping airbag is inflated, the front end of the cold snare is pressed down and tightly adheres to the gastrointestinal polyp tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polypectomy device of the present invention, and ensuring the resection direction and resection angle of the endoscopic gastrointestinal polypectomy.

[0012] Through the above technical solution, further: the cold ring sleeve is provided with a guide groove, the guide groove is provided with a guide pull wire, and the guide pull wire is provided with a rotary cutting blade.

[0013] The cold snare is designed with a guide groove inside, which cooperates with the guide pull wire of the rotary cutting blade. Under the action of the guide pull wire, the rotary cutting blade is controlled to rotate and slide back and forth, and the polyp is efficiently and fully removed by the rotary cutting blade, avoiding the problem of cutting not being able to stop and being stuck and difficult to control during cutting by the cold cutting blade, thereby ensuring the removal effect of the polyp.

[0014] Through the above technical solution, further: the rotary cutting blade is a double-sided rotary cutting blade.

[0015] Through the above technical solution, further: the cold ring sleeve is provided with a plurality of mesh cables, and the plurality of mesh cables together constitute a mesh cable sleeve.

[0016] Through the design of the mesh sleeve, during the process of endoscopic gastrointestinal polypectomy, after the polyp is removed, the mesh sleeve can be closed as the cold loop shrinks, and the removed polyp is wrapped and stored, and finally withdrawn together with the endoscope, which can effectively improve the use effect and safety of the polypectomy device, and can also reduce the patient's discomfort and surgical risks.

[0017] Through the above technical solution, further: the cold snare is also provided with a negative pressure suction hole, and the bottom of the cold snare is provided with a negative pressure hole, and the negative pressure suction hole is used for negative pressure adsorption to make the resection device close to the root of the polyp.

[0018] A negative pressure suction hole is designed on the cold snare, and a negative pressure hole is provided at the bottom of the cold snare. By using the punching airbag and the negative pressure hole in coordination, the punching airbag expands after being inflated, so that the front end of the resection component is pressed downward, and the negative pressure hole causes the cold snare to be adsorbed on the gastrointestinal polyp tissue wall due to the negative pressure adsorption effect, thereby fixing the resection position of the endoscopic gastrointestinal polypectomy device of the present invention and closely adhering to the root of the polyp, thereby meeting the clinical demand for resecting the polyp from the root.

[0019] Through the above technical solution, further: the length of the guide wire is smaller than the length of the cold snare.

[0020] Through the above technical solution, further: the rotary cutting blade is fixedly sleeved on the guide wire.

[0021] Through the above technical solution, further: the cold trap is made of a bendable and deformable material.

[0022] By designing the cold snare to use a bendable and deformable material, the device of the present application can be stored in the endoscope channel. After the endoscope is pushed out, the cold snare can be unfolded into a ring shape and put on the polyp.

[0023] The technical effects achieved by the present invention are as follows: 1. The present application proposes an endoscopic gastrointestinal polyp resection device, comprising: an endoscope tube, a resection component, a stamping airbag and a connecting rod. The resection component is installed on the endoscope tube, and the airbag is connected to the resection component through the connecting rod. By designing the stamping airbag, the stamping airbag is inflated to expand the airbag, so that the front end of the resection component is pressed down and closely attached to the gastrointestinal polyp tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polyp resection device of the present invention, ensuring the resection direction and resection angle of the endoscopic gastrointestinal polyp resection, and avoiding the problem of deflection and incomplete resection during the resection process. .

[0024] 2. A negative pressure suction hole is provided on the cold snare, and a negative pressure hole is provided at the bottom of the cold snare. By using the punching airbag and the negative pressure hole in coordination, the punching airbag expands after inflation, pressing the front end of the resection component downward, and the negative pressure hole fixes the resection position of the endoscopic gastrointestinal polypectomy device of the present invention due to the negative pressure adsorption effect, and adheres closely to the root of the polyp, meeting the clinical demand for resecting the polyp from the root.

[0025] 3. The guide groove, guide wire and rotary cutting blade structure designed in the device enhance the effectiveness of cutting, making polyps easier to cut and avoiding slipping and oblique cutting. The use of the network cable can wrap the removed polyps and remove them together with the endoscope. The device has broad application prospects in medical fields such as endoscopic cold cutting of gastrointestinal polyps. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a front view of an endoscopic gastrointestinal polyp removal device in an embodiment of the present application; Figure 2 is a top view of an endoscopic gastrointestinal polyp removal device in an embodiment of the present application; Figure 3 is a side view of an endoscopic gastrointestinal polyp removal device in an embodiment of the present application; Figure 4 It is a schematic diagram of the overall structure of a resection component of an endoscopic gastrointestinal polyp resection device in an embodiment of the present application; Figure 5 is a side view of a resection component of an endoscopic gastrointestinal polyp resection device in an embodiment of the present application; Figure 6 is a cross-sectional view of a schematic diagram of the internal structure of a ferrule of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Figure 7 It is a schematic cross-sectional view of a ring of a resection component of an endoscopic gastrointestinal polypectomy device according to an embodiment of the present application; Figure 8 It is a bottom view structural schematic diagram of a ferrule of a resection component of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Fig. 9is a cross-sectional view of a schematic diagram of the internal structure of a ferrule of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Fig.10 It is a top view of a connecting structure of a guide mechanism and double-sided rotary cutting blades of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Fig.11 It is a side view of the connection structure of the guide mechanism and the double-sided rotary cutting blades of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Fig.12 is a front view of an air bag of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application; Fig.13 It is a side view of an air bag of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application.

[0027] Fig.14 This is a specific installation diagram of an air bag of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application.

[0028] Fig.15 This is a cutting diagram of an air bag of an endoscopic gastrointestinal polypectomy device in an embodiment of the present application.

[0029] Markings in the figure: 1-endoscope tube, 2-resection component, 201-cold snare, 202-net cable, 203-rotary cutting blade, 204-guide pull wire, 205-cold cutting blade, 206-negative pressure suction hole, 207-guide slide groove, 208-inflation hole, 209-negative pressure hole, 3-air bag, 4-connecting device, 5-gastrointestinal polyp tissue wall, 6-polyp. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] The present invention and its embodiments are described below. This description is not restrictive and the actual embodiments are not limited to the following. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

[0032] Gastrointestinal polyps refer to raised lesions protruding from the surface of the gastrointestinal mucosa, which can occur in the esophagus, stomach, small intestine, and large intestine. Some polyps have the potential to become malignant, especially adenomatous polyps, which are considered to be precancerous lesions of malignant tumors such as colorectal cancer. Therefore, timely detection and removal of polyps are of great significance for preventing the occurrence of gastrointestinal malignancies. Polyps may also cause a series of clinical symptoms, such as abdominal pain, diarrhea, blood in the stool, intestinal obstruction, etc., affecting the patient's quality of life and health.

[0033] The gastrointestinal polypectomy device is a medical device specially used for removing gastrointestinal polyps. After research, the inventor found that the existing devices have the following problems: 1. The removal effect is difficult to control: for polyps with irregular shapes, lobed or flat, the cold snare may be difficult to accurately fit the contour of the polyp for removal, which may easily result in incomplete removal; 2. The removal angle is difficult to control: the cold snare requires a certain level of technical skills and operating experience to cut polyps. The doctor needs to accurately put the snare around the polyp and master the appropriate cutting force and angle to ensure complete removal of the polyp and avoid complications. For beginners, it may take a long time of learning and practice to master the cold snare technology, which to a certain extent limits the widespread application of this technology.

[0034] Based on the above findings, the present application proposes an endoscopic gastrointestinal polypectomy device, comprising: an endoscope tube, a resection component, a stamping airbag and a connecting rod. The resection component is installed on the endoscope tube, and the airbag is connected to the resection component through the connecting rod. When in use, the device is sent to the lesion site, such as the intestinal polyp site, through the endoscopic operation channel. By designing the stamping airbag, the stamping airbag is inflated at the distal end so that the airbag is inflated and expanded, and the front end of the resection component is pressed down and pressed against the tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polypectomy device of the present invention, ensuring the resection direction and resection angle of endoscopic gastrointestinal polypectomy, and avoiding the problem of deviation in the resection process and incomplete resection.

[0035] The designed resection component includes a cold snare, which is provided with a negative pressure exhaust hole, and the bottom surface of the cold snare is provided with a negative pressure hole. Through the coordinated use of the punching airbag and the negative pressure hole, the punching airbag expands after inflation, so that the front end of the resection component is pressed down and pressed against the tissue wall. The negative pressure hole is adsorbed on the gastrointestinal polyp tissue wall where the gastrointestinal polyp grows due to the negative pressure adsorption effect, so that the resection position of the endoscopic gastrointestinal polyp resection device of the present invention is fixed and close to the root of the polyp, meeting the clinical demand for resecting the polyp from the root. At the same time, the guide chute, guide pull wire and rotary cutting blade structure designed in the device enhance the effectiveness of cutting, make the polyp easier to cut, and avoid the phenomenon of slipping and beveling. The use of the network cable can wrap the removed polyp and withdraw it together with the endoscope. The device has broad application prospects in medical fields such as endoscopic cold cutting of gastrointestinal polyps.

[0036] As attached Figure 1-13 As shown, the present application discloses an endoscopic gastrointestinal polypectomy device, comprising an endoscope tube 1, a resection component 2, a stamping airbag 3 and a connecting rod 4; wherein the resection component 2 is installed on the endoscope tube 1, the stamping airbag 3 is connected to the resection component 2 through the connecting rod 4, and the stamping airbag is used to determine the resection angle and resection position of an endoscopic gastrointestinal polypectomy device.

[0037] In an embodiment of the present application, an endoscopic gastrointestinal polyp resection device is designed to include a stamping airbag, which is connected to a resection component through a connecting rod. When in use, the device is sent to the lesion site, such as the intestinal polyp site, through the endoscopic operation channel, and the stamping airbag is inflated at the distal end. The stamping airbag is inflated and expanded, so that the inflated airbag at the front end of the resection component is pressed down and tightly against the tissue wall under the expansion action, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polyp resection device of the present invention, ensuring the resection direction and resection angle of the endoscopic gastrointestinal polyp resection, and avoiding the problems of deviation and incomplete resection during the resection process.

[0038] It should be noted that an endoscope tube is a medical device used for endoscopic examination and treatment. Endoscopy is a technology that observes and treats internal organs and tissues by inserting a soft, tubular instrument (endoscope) into the body. Endoscope tubes are usually used to insert an endoscope into the body and provide a channel so that doctors can observe and treat internal organs and tissues. Endoscope tubes are usually made of soft materials that can bend and stretch to adapt to complex structures in the body. There are usually one or more channels inside the endoscope tube for inserting the endoscope and other instruments, such as cameras, light sources, surgical instruments, etc. Through these channels, doctors can observe and treat internal organs and tissues.

[0039] It should be noted that in the embodiments of the present application, the inflatable airbag is used to achieve the determination of the resection angle and resection position of an endoscopic gastrointestinal polyp resection device of the present invention, and the inflation size of the inflatable airbag can be configured according to the growth position of the gastrointestinal polyp and the actual application requirements. For example, when resecting intestinal polyps, the device is sent to the lesion area, and the device is pushed out of the endoscope tube by remote operation, and the resection component is sleeved on the periphery of the intestinal polyp; after adjusting the angle of the endoscope and the device to meet the operating angle and position, the inflatable airbag is inflated from the remote end, and the inflation of the airbag causes the front end of the device to press down and cling to the intestinal tissue wall. At this time, the size of the inflatable airbag matches the intestinal diameter of the intestinal polyp growth site and clings to the intestinal tissue wall. For another example, when removing a gastric polyp, the device is delivered to the lesion area, and the device is pushed out of the endoscope tube by remote operation, and the removal component is sleeved on the periphery of the gastric polyp; after adjusting the angle of the endoscope and the device to match the operation angle and position, the inflatable balloon is inflated from the remote end. The inflated balloon causes the front end of the device to press down and adhere closely to the gastric tissue wall where it grows. At this time, the size of the inflatable balloon matches the stomach diameter at the growth site of the gastric polyp, and adheres closely to the intestinal tissue wall.

[0040] The present application discloses an endoscopic gastrointestinal polyp resection device. During actual implementation, the device is loaded into an endoscope operation channel, and the endoscope is sent to the lesion area, such as the intestinal polyp site; the device is pushed out of the endoscope tube by remote operation, and the resection component is sleeved on the periphery of the gastrointestinal polyp; the angle of the endoscope and the device is adjusted to meet the operation angle and position, and then the inflatable balloon is inflated from the remote end, and the balloon expands, so that the front end of the device is pressed down and tightly against the tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polyp resection device of the present invention.

[0041] The cutting assembly 2 is mounted on the endoscope tube 1, and a punching airbag 3 is connected to one side of the cutting assembly 2. The punching airbag 3 is connected to the cutting assembly 2 through a connecting rod 4. Figure 4-11 As shown, the resection assembly 2 includes a cold snare 201, which is arranged on the endoscope tube 1. A cold cutting blade 205 is arranged on the inner side of the cold snare 201. The cold snare 201 is provided with an air inlet 208, which is used to inflate and deflate the ram airbag 3.

[0042] In the embodiment of the present application, the resection component is designed to include a cold snare. Through the reasonable use of the cold snare, the risk of thermal injury can be effectively reduced, the resection rate can be improved, the operation time can be shortened, and the recurrence rate can be reduced; the cold snare is arranged on the endoscope tube, and a cold cutting blade is arranged on the inner side of the cold snare, so that the gastrointestinal polyps can be separated and removed from the intestinal wall by the mechanical force of the cold snare and the cold cutting blade, and the cold snare is provided with an air inlet hole, so that the stamping airbag can be inflated and deflated through the air inlet hole, so that after the stamping airbag is inflated, the front end of the cold snare is pressed down and tightly against the tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polypectomy device of the present invention, and ensuring the resection direction and resection angle of the endoscopic gastrointestinal polypectomy.

[0043] It should be noted that in some embodiments of the present application, a cold snare of an endoscopic gastrointestinal polypectomy device is made of a bendable and deformable material. The use of the bendable and deformable material allows the device of the present application to be stored in the endoscope channel. After the endoscope is pushed out, the cold snare can be unfolded into a ring shape and put on the polyp. For example, the cold snare can be made of a polymer material, such as polyamide or polyester fiber. The polymer material has good flexibility and strength and can provide better cutting performance. By reasonably selecting and using the material of the cold snare, the flexibility and comfort of the cold snare can be effectively improved, and at the same time, irritation or damage to the inner surface of the intestine can be avoided.

[0044] In some embodiments, the surface of the cold snare may also be coated with special coating materials, such as silicone or polyurethane, which may provide better lubricity and antibacterial properties.

[0045] In some embodiments, a plurality of mesh cables 202 are disposed on the cold trap 201, and the plurality of mesh cables together constitute a mesh cable sleeve.

[0046] By designing multiple network cables to form a network cable sleeve, during the process of endoscopic gastrointestinal polypectomy, after the polyp is removed, the network cable sleeve closes as the cold loop shrinks, wraps and stores the removed polyp, and finally withdraws it together with the endoscope, which can effectively improve the use effect and safety of the polypectomy device, while also reducing the patient's discomfort and surgical risks.

[0047] In some embodiments, a guide groove 207 is provided inside the cold snare 201 , a guide wire 204 is provided inside the guide groove 207 , and a rotary cutting blade 203 is provided on the guide wire 204 .

[0048] The cold snare is designed with a guide groove inside, which cooperates with the guide pull wire of the rotary cutting blade. Under the action of the guide pull wire, the rotary cutting blade is controlled to rotate and slide back and forth, and the polyp is efficiently and fully removed by the rotary cutting blade, avoiding the problem of cutting not being able to stop and being stuck and difficult to control during cutting by the cold cutting blade, thereby ensuring the removal effect of the polyp.

[0049] It should be noted that the rotary cutting blade and the cold cutting blade can be made of metal or harder materials to ensure the stability and effect of the removal during the polypectomy. For example, the rotary cutting blade and the cold cutting blade can be made of stainless steel, which has good hardness and strength and can ensure the rigidity and durability of the cold cutting blade and the cold cutting blade. In addition, stainless steel also has good corrosion resistance and can be used for a long time in the in vivo environment without being easily damaged.

[0050] In the present application, the rotary cutting blade and the cold cutting blade may also be made of nickel-titanium alloy, which is a shape memory alloy with good elasticity and flexibility. It can adapt to the curvature and peristalsis of the intestine to a certain extent, reducing discomfort during the examination. In addition, in order to improve the performance of the rotary cutting blade and the cold cutting blade of the endoscopic gastrointestinal polypectomy device of the present application, in some cases special coating materials such as silicone or polyurethane may be coated on their surfaces. These coating materials can provide better lubricity and antibacterial properties. In the present application, the materials, shapes, and performance of the rotary cutting blade and the cold cutting blade may also be specifically configured as needed to better meet the needs of endoscopic gastrointestinal polypectomy, which will not be explained one by one here.

[0051] In some embodiments, the length of the guide wire is smaller than the length of the cold snare. By designing the length of the guide wire to be smaller than the length of the cold snare, the pulling of the guide wire can be controlled under the action of the distal end, and the rotary cutting blade can be controlled to rotate and slide back and forth, so that the polyp can be efficiently and fully removed by the rotary cutting blade, avoiding the problem of cutting not being able to be cut, jamming and being difficult to control during cutting by the cold cutting blade, and ensuring the removal effect of the polyp.

[0052] In some embodiments, the rotary cutting blade 203 is fixedly mounted on the guide wire 204. By fixing the rotary cutting blade on the guide wire, the stability of the excision during polypectomy can be ensured, shaking or jamming of the rotary cutting blade can be avoided, and the rotary cutting blade can be ensured to efficiently and fully excise the polyp.

[0053] In some embodiments, the rotary cutting blade adopts a sawtooth-like structure. By designing the rotary cutting blade to have a sawtooth-like structure, the polyp can be efficiently and fully removed, avoiding the problem of cutting motionlessness and jamming that is difficult to control when the cold cutting blade is cutting. For example, the rotary cutting blade can adopt a bilateral rotary cutting blade. The advantage of using a bilateral rotary cutting blade is its efficiency and accuracy. Since rotary cutting can be performed in two directions at the same time, it can significantly improve production efficiency. In addition, due to the use of CNC technology, the bilateral rotary cutting knife can ensure the flatness and consistency of the incision, thereby ensuring the removal effect of the polyp and verifying the surgical quality of gastrointestinal polypectomy.

[0054] In some embodiments, the cold snare 201 is further provided with a negative pressure suction hole 206, and the bottom of the cold snare 201 is provided with a negative pressure hole 209, and the negative pressure suction hole 206 is used for negative pressure adsorption so that the negative pressure hole is adsorbed on the intestinal wall, thereby making the resection device close to the root of the polyp.

[0055] In the embodiment of the present application, a negative pressure suction hole is provided on the cold snare by design, and a negative pressure hole is provided on the bottom of the cold snare. By using the punching airbag and the negative pressure hole in coordination, the punching airbag expands after inflation, pressing the front end of the resection component downward, and the negative pressure hole causes the cold snare to be adsorbed on the intestinal wall due to the negative pressure adsorption effect, thereby fixing the resection position of the endoscopic gastrointestinal polypectomy device of the present invention and closely adhering to the root of the polyp, meeting the clinical demand for resecting the polyp from the root.

[0056] It should be noted that, in some embodiments, an endoscopic gastrointestinal polypectomy device in the present application, when actually implemented, is loaded into the endoscope operation channel, and the endoscope is sent to the lesion area, such as the intestinal polyp site; the device is pushed out of the endoscope tube by remote operation, and the resection component is sleeved on the periphery of the intestinal polyp; the angle of the endoscope and the device is adjusted to meet the operation angle and position, and the inflatable balloon is inflated from the remote end. The inflation of the balloon causes the front end of the device to be pressed down and tightly against the intestinal tissue wall, and then gas is extracted through the negative pressure suction holes on the cold snare, so that the negative pressure holes set at the lower end of the cold snare are adsorbed on the intestinal wall due to the negative pressure adsorption effect, and the resection position of the endoscopic gastrointestinal polypectomy device in the present application is fixed and tightly against the root of the polyp, and the cutting angle can be fixed and maintained, which meets the clinical demand for resecting polyps from the root, and avoids the technical problems of the existing devices that are difficult to control the resection effect and the resection angle.

[0057] In some embodiments, an endoscopic gastrointestinal polypectomy device in the present application, during actual implementation, is loaded into an endoscope operation channel, and the endoscope is sent to the lesion area, such as the site of a gastric polyp; the device is pushed out of the endoscope tube by remote operation, and the resection component is sleeved on the periphery of the gastric polyp; the angle of the endoscope and the device is adjusted to meet the operation angle and position, and the inflatable balloon is inflated from the remote end, so that the front end of the device is pressed down and closely adheres to the gastric tissue wall, and gas is extracted through the negative pressure suction holes on the cold snare, so that the negative pressure holes are adsorbed on the intestinal wall due to the negative pressure adsorption effect, and the resection position of the endoscopic gastrointestinal polypectomy device of the present application is fixed and closely adheres to the root of the gastric polyp. On the other hand, the position of the device can be fixed to maintain the cutting angle, thereby avoiding the technical problems of the existing devices that the resection effect is difficult to control and the resection angle is difficult to control.

[0058] As attached Figure 14-15 As shown, a method for using an endoscopic gastrointestinal polypectomy device in an embodiment of the present invention has the following working principle: First, according to the prior art, an endoscopic gastrointestinal polypectomy device of the present application is loaded into an endoscope operation channel, and the endoscope is sent to the lesion area; Next, the device is pushed out of the endoscope by distal operation, and the cold snare 201 is placed on the periphery of the polyp 6; Then, the angles of the endoscope and the device are adjusted to meet the operating angle and position, and the punching airbag 3 is inflated from the far end, and the punching airbag 3 is inflated to make the front end of the cold snare 201 press down and cling to the gastrointestinal polyp tissue wall 5; after confirming that the resection position and resection angle of the device are appropriate, the far end is vacuumed with negative pressure to further suck the bottom of the cold snare 201 and the gastrointestinal polyp tissue wall 5 tightly to ensure the resection angle and resection position; Finally, by gradually tightening the cold snare 201 and pulling the rotary cutting blade 203 to move back and forth along the guide groove 207, the force of negative pressure extraction is adjusted as needed, and the cold cutting blade 205 and the rotary cutting blade 203 are used to remove the polyp 6; as the cold snare 201 is retracted and the polyp 6 is removed, the polyp 6 is wrapped by the mesh cable sleeve formed by the mesh cable 202, and after complete removal and other medical operations, the removed polyp 6 is withdrawn together with the endoscope.

[0059] The embodiment of the present application is an endoscopic gastrointestinal polypectomy device. When in use, the stamping airbag is inflated at the distal end, and the stamping airbag expands, so that the front end of the resection component is pressed down and closely attached to the tissue wall, thereby realizing the determination of the resection angle and resection position of the endoscopic gastrointestinal polypectomy device of the present invention, ensuring the resection direction and resection angle of the endoscopic gastrointestinal polypectomy, and avoiding the problem of deflection and incomplete resection during the resection process. A negative pressure suction hole is provided on the cold snare, and a negative pressure hole is provided at the bottom of the cold snare. Through the coordinated use of the stamping airbag and the negative pressure hole, the stamping airbag expands after inflation, pressing the front end of the resection component downward. The negative pressure hole fixes the resection position of the endoscopic gastrointestinal polypectomy device of the present invention due to the negative pressure adsorption effect, and closely adheres to the root of the polyp, meeting the clinical demand for resecting polyps from the root. At the same time, the guide slide groove, guide pull wire and rotary cutting blade structure designed in the device enhance the effectiveness of cutting, making polyps easier to cut, and avoiding the phenomenon of slipping and beveling. The use of network cables can wrap the removed polyps and remove them together with the endoscope. This device has broad application prospects in medical fields such as endoscopic cold resection of gastrointestinal polyps.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An endoscopic gastrointestinal polyp removal device, comprising: An endoscope tube (1), a resection component (2), wherein the resection component (2) is mounted on the endoscope tube (1), and wherein the device further comprises a stamping airbag (3) and a connecting rod (4), wherein the airbag (3) is connected to the resection component (2) via the connecting rod (4), and wherein the airbag (3) is used to determine a resection angle and a resection position of an endoscopic gastrointestinal polypectomy device.

2. The endoscopic gastrointestinal polypectomy device according to claim 1, characterized in that: The cutting assembly comprises: a cold snare (201), a cold cutting blade (205) is provided on the inner side of the cold snare (201), and an air inlet (208) is provided on the cold snare (201), and the air inlet (208) is used to inflate and deflate the airbag (3).

3. The endoscopic gastrointestinal polypectomy device according to claim 2, characterized in that: The cold ring sleeve (201) is provided with a guide slot (207), the guide slot (207) is provided with a guide wire (204), and the guide wire (204) is provided with a rotary cutting blade (203).

4. The endoscopic gastrointestinal polypectomy device according to claim 3, characterized in that: The rotary cutting blade is a double rotary cutting blade.

5. The endoscopic gastrointestinal polypectomy device according to claim 2, characterized in that: The cold ring sleeve (201) is provided with a plurality of mesh cables (202), and the plurality of mesh cables together form a mesh cable sleeve (202).

6. The endoscopic gastrointestinal polypectomy device according to claim 3, characterized in that: The cold snare (201) is also provided with a negative pressure suction hole (206), and the bottom surface of the cold snare (201) is provided with a negative pressure hole (209). The negative pressure suction hole (206) is used for negative pressure adsorption to make the removal device close to the root of the polyp.

7. The endoscopic gastrointestinal polypectomy device according to claim 4, characterized in that: The length of the guide wire (204) is shorter than the length of the cold snare (201).

8. The endoscopic gastrointestinal polypectomy device according to claim 6, characterized in that: The rotary cutting blade (203) is fixedly sleeved on the guide pull wire (204).

9. The endoscopic gastrointestinal polypectomy device according to claim 2, characterized in that: The cold ring (201) is made of a bendable and deformable material.

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