Auxiliary gastric emptying device

Abstract

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.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a device for assisting gastric emptying. Background Art

[0002] Functional delayed gastric emptying (FDGE), also known as gastroparesis syndrome, refers to the disorder of gastric nerve and muscle function, which makes it impossible to empty the stomach normally. FDGE is usually a functional disease, but if not properly treated, it will have a great impact on the patient's cardiopulmonary function, cause hypoproteinemia and electrolyte imbalance, lead to respiratory and circulatory physiological changes, and even cause death.

[0003] However, there is no corresponding treatment for gastric emptying disorder. In the early 1990s, some scholars applied self-expanding metal stents to the treatment of pyloric obstruction. This method has advantages in reducing trauma and shortening postoperative recovery time. However, due to the high risk of stent displacement and the easy growth of tumors along the stent, the re-obstruction rate of the stent remains high, and the complications caused include severe infection and anastomotic fistula. Patients need to endure great pain and even need a second operation. The effects of endoscopic stent implantation and surgical treatment for pyloric obstruction are comparable. The former has a more positive effect in shortening postoperative recovery time, but its late complication rate is high and is mainly stent blockage and displacement. There is still room for improvement.

[0004] Domestic clinical studies have confirmed that endoscopic placement of metal stents is safe and effective for palliative treatment of malignant gastric outlet obstruction. However, due to the high cost of metal stent treatment and the inability to remove it after placement, it is suitable for difficult-to-resectable malignant lesions and benign obstructive lesions, but not for the treatment of gastric emptying disorders. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a device for assisting gastric emptying to eliminate or improve one or more defects existing in the prior art.

[0006] The present invention provides an auxiliary gastric emptying device, which comprises: a main catheter, a cardiac airbag, and a pyloric airbag; wherein the main catheter comprises a pyloric airbag tube, one end of which has an inflation port, and the other end or the middle is connected to the pyloric airbag; the main catheter also comprises a cardiac airbag tube, one end of which has an inflation port, and the other end or the middle is connected to the cardiac airbag; the main catheter also comprises a gastric cavity inflation tube, one end of which has an inflation port, and the other end or the middle is connected to the gastric cavity.

[0007] The cardiac airbag is used to be set at the cardiac position so that it can close the cardiac position when inflated; the pyloric airbag is used to be set at the pylorus position and has a drainage channel so that it can open the pylorus when inflated, allowing the gastric fluid in the gastric cavity to be discharged from the gastric cavity through the drainage channel under the inflated and pressurized state.

[0008] In some embodiments of the present invention, the pyloric airbag tube and the cardiac airbag tube are configured as the same airbag inflation tube; one end of the airbag inflation tube has an inflation port, the middle portion is connected to the cardiac airbag, and the other end is connected to the pyloric airbag, so that the cardiac airbag and the pyloric airbag can be inflated or deflated at the same time.

[0009] In some embodiments of the present invention, the length of the tube section of the main duct from the pyloric airbag to the exhaust hole is d, the length of the tube section of the main duct from the pyloric airbag to the cardiac airbag is D, and the setting position of the exhaust hole is configured to satisfy: 0.5*D≤d≤0.9*D.

[0010] In some embodiments of the present invention, the exhaust hole is provided with a one-way valve so that the gas in the gastric cavity inflation tube can flow unidirectionally into the gastric cavity.

[0011] In some embodiments of the present invention, the exhaust hole is provided with a waterproof breathable membrane, so that the gas inside the gastric cavity inflation tube can pass through the waterproof breathable membrane into the gastric cavity and prevent the liquid inside the gastric cavity from entering the gastric cavity inflation tube.

[0012] In some embodiments of the present invention, the drainage channel has a flared portion, which is in the shape of an outwardly flared trumpet and is disposed at the entrance of the drainage channel.

[0013] In some embodiments of the present invention, the cardiac airbag and the pyloric airbag are configured as at least one of a cylindrical airbag and a spherical airbag.

[0014] In some embodiments of the present invention, the cardiac airbag is configured as an annular airbag, a portion of which is used to configure the main catheter.

[0015] In some embodiments of the present invention, the pyloric airbag is configured as an annular airbag, a portion of which is used to form the drainage channel to support the drainage channel to remain open.

[0016] In some embodiments of the present invention, the pyloric airbag and / or the cardiac airbag is sleeved on the outer surface of the main catheter and is fixedly connected to the annular tube wall of the main catheter.

[0017] In some embodiments of the present invention, the pyloric airbag and / or the cardiac airbag is arranged at a unilateral position of the main catheter, and is fixedly connected to the contacting outer wall of the main catheter.

[0018] In some embodiments of the present invention, the main conduit is provided with an airbag groove so that the airbag can be stored inside the airbag groove in a deflated state, thereby enabling the outer diameter of the tube wall at each position of the main conduit to remain consistent.

[0019] In some embodiments of the present invention, the airbag inflation tube is arranged inside the gastric cavity inflation tube, and the side wall of the gastric cavity inflation tube has an opening so that the airbag inflation tube is connected to the airbag outside the main catheter;

[0020] The inner cavity of the air bag inflation tube and the inner cavity of the gastric cavity inflation tube are separated from each other.

[0021] In some embodiments of the present invention, the length of the main catheter is configured to be 600mm~1200mm, and its outer diameter is configured to be 3mm~6mm; the outer diameter of the pyloric balloon is configured to be 8mm~15mm, the outer diameter of the cardiac balloon is configured to be 8mm~10mm, and the inner diameter of the drainage channel is configured to be 2mm~4mm.

[0022] In some embodiments of the present invention, the auxiliary gastric emptying device further comprises an air pump, and the air pump is used to connect with each inflation port to inflate and deflate the air bag or the gastric cavity.

[0023] According to the technical solution of the auxiliary gastric emptying device in the embodiment of the present invention, the beneficial effects that can be obtained include at least:

[0024] The overall structure of the auxiliary gastric emptying device of the present invention is that the main catheter connects the pyloric airbag and the cardiac airbag, which can assist the discharge of gastric juice inside the gastric cavity by inflating the airbag according to the patient's physical condition; the gastric cavity tube is provided with an exhaust hole, which can inflate and pressurize the gastric cavity, which is beneficial to accelerate the discharge rate of gastric juice; the cardiac airbag is arranged at the cardiac position and can close the cardia in an inflated state; the pyloric airbag is arranged at the pyloric position and can open the pylorus in an inflated state, and the pyloric airbag is provided with a drainage channel, which can make the gastric juice in the gastric cavity be discharged from the gastric cavity through the drainage channel in an inflated and pressurized state. The auxiliary gastric emptying device in the embodiment of the invention is beneficial to shorten the recovery time of postoperative gastroparesis syndrome, simplify the treatment procedure, and is of great significance to the recovery of patients.

[0025] Additional advantages, purposes, and features of the present invention will be described in part in the following description, and will become apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention may be achieved and obtained by the structures specifically indicated in the specification and the accompanying drawings.

[0026] Those skilled in the art will appreciate that the objectives and advantages that can be achieved with the present invention are not limited to the above specific description, and the above and other objectives that can be achieved by the present invention will be more clearly understood from the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention. In the drawings:

[0028] Figure 1 Schematic diagram of the working principle of a device for assisting gastric emptying in one embodiment of the present invention.

[0029] Figure 2 Schematic diagram of the structure of a device for assisting gastric emptying in one embodiment of the present invention.

[0030] Figure 3 FIG. 4 is a schematic diagram of the structure of a device for assisting gastric emptying in another embodiment of the present invention.

[0031] Figure 4 Schematic diagram of the location of the exhaust hole in one embodiment of the present invention.

[0032] Figure 5 It is a cross-sectional view of a pyloric balloon in one embodiment of the present invention.

[0033] Figure 6 It is a radial cross-sectional view of the inflated state of the auxiliary gastric emptying device according to one embodiment of the present invention.

[0034] Figure 7 It is a radial cross-sectional view of a deflated state of a device for assisting gastric emptying according to an embodiment of the present invention.

[0035] Figure 8 It is a schematic diagram of the technical effect of the device for assisting gastric emptying in one embodiment of the present invention.

[0036] Reference numerals:

[0037] 1. Main catheter; 11. Balloon inflation tube; 11-1. Pyloric balloon tube; 11-2. Cardiac balloon tube; 12. Gastric cavity inflation tube; 121. Exhaust hole; 2. Cardiac balloon; 3. Pyloric balloon; 31. Drainage channel; 311. Expanding part. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0039] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0040] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, elements, steps or components, but does not exclude the presence or addition of one or more other features, elements, steps or components.

[0041] It should also be noted that, unless otherwise specified, the term “connection” herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0042] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0043] In order to solve the problems that the metal stent of the gastric emptying device in the prior art is prone to blockage and displacement, causing complications, as well as high treatment costs and cannot be removed after implantation, the present invention provides an auxiliary gastric emptying device. Different from the metal stent implanted under endoscopy in the prior art, the overall structure of the auxiliary gastric emptying device in the embodiment of the present invention is a main catheter 1 connecting the pyloric airbag 3 and the cardiac airbag 2, which can assist the discharge of gastric juice in the gastric cavity by inflating the airbag according to the patient's physical condition. The pyloric airbag 3 is arranged at the pylorus position and can open the pylorus in an inflated state, and the pyloric airbag 3 is provided with a drainage channel 31, which can enable the gastric juice in the gastric cavity to be discharged from the gastric cavity through the drainage channel 31, which is beneficial to shorten the recovery time of postoperative gastroparesis syndrome and simplify the treatment procedure, and is of great significance to the patient's recovery.

[0044] An embodiment of the present invention provides a device for assisting gastric emptying, such as Figure 1 and Figure 2As shown, the auxiliary gastric emptying device includes: a main catheter 1, a cardiac airbag 2, and a pyloric airbag 3; wherein the main catheter 1 includes a pyloric airbag tube 11-1, one end of which has an inflation port, and the other end or the middle is connected to the pyloric airbag 3; the main catheter 1 also includes a cardiac airbag tube 11-2, one end of which has an inflation port, and the other end or the middle is connected to the cardiac airbag 2; the main catheter 1 also includes a gastric cavity inflation tube 12, The gastric cavity inflation tube 12 has an inflation port at one end and an exhaust hole 121 at the other end or in the middle. The exhaust hole 121 is used to be set in the gastric cavity so as to inflate and pressurize the gastric cavity; the cardiac airbag 2 is used to be set at the cardiac position so as to close the cardiac position when inflated; the pyloric airbag 3 is used to be set at the pylorus position and has a drainage channel 31 so as to open the pylorus when inflated, so that the gastric fluid in the gastric cavity can be discharged from the gastric cavity through the drainage channel 31 when inflated and pressurized.

[0045] The gastric emptying device realizes its different functions and effects by inflating or deflating different inflation ports respectively. For example, the pyloric airbag tube 11-1 is inflated or deflated to control the expansion or contraction of the pyloric airbag 3; the cardiac airbag tube 11-2 is inflated or deflated to control the expansion or contraction of the cardiac airbag 2; and the gastric cavity inflation tube 12 is inflated or deflated to adjust the air pressure inside the gastric cavity.

[0046] The device that assists gastric emptying is inserted into the patient through gastroscopy, such as Figure 8 As shown, the inflation port is reserved outside the patient's body, the main catheter 1 passes through the patient's nasal cavity and esophagus to reach the patient's stomach cavity, the pyloric airbag 3 is set at the pylorus position, and the cardiac airbag 2 is set at the cardiac position. According to the meridian circulation law of the patient's stomach, the auxiliary gastric emptying device starts the emptying operation at a fixed time; first, the pyloric airbag 3 is inflated to open the pylorus, so that the pyloric opening is enlarged to promote the discharge of gastric juice, and at the same time, the drainage channel 31 of the pyloric airbag 3 is opened to guide the outflow of gastric juice; then, the cardiac airbag 2 is inflated to close the cardia, which can prevent the gastric juice or gas inside the gastric cavity from flowing back to the esophagus, and can also provide a closed gastric cavity space for subsequent gastric cavity pressurization; then, the gastric cavity inflation tube 12 is inflated, and the gas enters the gastric cavity through the exhaust hole 121 to increase the gastric cavity air pressure, which is conducive to accelerating the speed of gastric juice discharge; after the gastric juice is discharged, the inflation port of the gastric cavity inflation tube 12 is deflated, so that the gastric cavity air pressure returns to the normal range; then, the pyloric airbag 3 is deflated and the pylorus is closed to prevent the gastric juice from flowing back into the duodenum; finally, the cardiac airbag 2 is deflated to open the cardia normally.

[0047] The overall structure of the auxiliary gastric emptying device in the above embodiment is that the main catheter 1 connects the pyloric airbag 3 and the cardiac airbag 2, which can assist the discharge of gastric fluid in the gastric cavity by inflating the airbag according to the patient's physical condition; the gastric cavity tube is provided with an exhaust hole 121, which can inflate and pressurize the gastric cavity, which is conducive to accelerating the discharge speed of gastric fluid; the cardiac airbag 2 is arranged at the cardiac position and can close the cardiac in an inflated state; the pyloric airbag 3 is arranged at the pyloric position and can open the pylorus in an inflated state, and the pyloric airbag 3 is provided with a drainage channel 31, which can make the gastric fluid in the gastric cavity discharge the gastric cavity through the drainage channel 31 in an inflated and pressurized state. The gastric emptying assisting device is beneficial to shortening the recovery time of postoperative gastroparesis syndrome and simplifying the treatment procedure, which is of great significance to the patient's recovery, including but not limited to this. The gastric emptying assisting device also has a certain improvement effect on other diseases. For example, by supporting and expanding the cardia or esophagus after the cardia airbag 2 is inflated, the symptoms of benign esophageal stenosis and cardia obstruction can be improved. By setting the pyloric airbag 3 in the duodenum, the inflated pyloric airbag 3 can improve the symptoms of benign duodenal contraction and intestinal obstruction. Therefore, the structural state and setting position of the gastric emptying assisting device can be flexibly adjusted according to the actual usage scenario to achieve different treatment effects.

[0048] In addition, if Figure 8 As shown, based on the setting position of the assisted gastric emptying device and the structural characteristics of the device itself, after the patient's gastric emptying disorder is cured, the assisted gastric emptying device is deflated and the assisted gastric emptying device can be directly pulled out of the patient's body through the main catheter 1. There is no need for surgery or use of a gastroscope to remove it, which is conducive to simplifying the treatment steps and saving medical resources.

[0049] In some embodiments of the present invention, Figure 3 As shown, the pyloric airbag tube 11-1 and the cardiac airbag tube 11-2 are configured as the same airbag inflation tube 11; one end of the airbag inflation tube 11 has an inflation port, the middle portion is connected to the cardiac airbag 2, and the other end is connected to the pyloric airbag 3, so that the cardiac airbag 2 and the pyloric airbag 3 can be inflated or deflated at the same time, and the expansion or contraction of the pyloric airbag 3 and the cardiac airbag 2 can be controlled simultaneously through one inflation port, which can reduce the operating steps of the auxiliary gastric emptying device, and can also simplify the structure of the main catheter 1, thereby reducing the outer diameter of the main catheter 1, which is beneficial to reducing the patient's discomfort with the main catheter 1 inserted into the body and improving the treatment experience.

[0050] In some embodiments of the present invention, Figure 4As shown, the length of the tube section of the main catheter 1 corresponding to the pyloric airbag 3 to the exhaust hole 121 is d, and the length of the tube section of the main catheter 1 corresponding to the pyloric airbag 3 to the cardiac airbag 2 is D. The setting position of the exhaust hole 121 is configured to satisfy: 0.5*D≤d≤0.9*D, so that the exhaust hole 121 is set at the upper position of the gastric cavity, which can prevent gastric juice or food from entering the gastric cavity inflation tube 12 through the exhaust hole 121, and can also make the pressurized gas gather in the upper part of the gastric cavity, and then press the gastric juice downward from the pylorus position, avoiding the gastric juice or food in the lower part of the gastric cavity from violent movement due to the gas flow, so that the gastric juice and food in the gastric cavity can be quietly and smoothly discharged from the pylorus in the lower part of the gastric cavity, which is beneficial to reduce stomach discomfort during gastric emptying.

[0051] As a feasible method, the exhaust hole 121 is provided with a one-way valve so that the gas in the gastric cavity inflation tube 12 can be unidirectionally conducted to the inside of the gastric cavity. Since the exhaust hole 121 is provided with a one-way valve, the gastric cavity inflation tube 12 can only inflate the gastric cavity but cannot deflate. Therefore, the decompression of the gastric cavity needs to be achieved by the deflation and contraction of the cardiac airbag 2. After the cardiac airbag 2 is deflated, the gastric cavity is connected with the esophagus, and the gas inside the gastric cavity is directly discharged along the esophagus, so that the gastric cavity returns to a normal air pressure range.

[0052] As another possible implementation method, the exhaust hole 121 is provided with a waterproof breathable membrane so that the gas inside the gastric cavity inflation tube 12 can pass through the waterproof breathable membrane into the gastric cavity and block the liquid inside the gastric cavity from entering the gastric cavity inflation tube 12. Since gastric juice has a certain corrosiveness, the waterproof breathable membrane used also needs to have corrosion resistance to prevent it from being corroded and damaged during use.

[0053] In some embodiments of the present invention, Figure 5 As shown, the drainage channel 31 has a flared portion 311, which is in the shape of an outwardly flared trumpet and is arranged at the entrance of the drainage channel 31. The flared portion 311 can improve the drainage effect of the drainage channel 31 on gastric juice and prevent gastric juice or food from being blocked around the entrance of the drainage channel 31. At the same time, the flared portion 311 can also increase the fluid flow rate inside the drainage channel, which is conducive to accelerating the discharge of gastric juice.

[0054] In some embodiments of the present invention, the cardiac airbag 2 and the pyloric airbag 3 are configured as at least one of a cylindrical airbag or a spherical airbag. The cardiac airbag 2 and the pyloric airbag 3 are made of elastic soft material. In a contracted state, they are a thin sheet structure with inner and outer layers bonded to each other. After the inner cavity is inflated, they expand into a corresponding cylindrical shape or spherical shape. The shape of the airbag does not have any sharp parts, and the edges of the structure are configured as arc-shaped or curved structures, which is beneficial to reduce the impact and stimulation on the inner wall of the stomach and intestine after the airbag is inflated, so as to alleviate the patient's discomfort.

[0055] In some embodiments of the present invention, the cardiac airbag 2 is configured as an annular airbag, the middle part of which is used to set the main catheter 1. The cardiac airbag 2 is configured as an annular airbag. After inflation, the cardiac airbag 2 contacts the inner wall of the cardia. Due to the elasticity and variability of the airbag, the cardiac airbag 2 can fully fit with the irregular inner wall structure of the cardia, which is beneficial to improve the sealing effect of the cardiac airbag 2. At the same time, it can avoid direct contact between the main catheter 1 and the cardia, reducing irritation to the inner wall of the patient's gastrointestinal tract.

[0056] In some embodiments of the present invention, the pyloric airbag 3 is configured as an annular airbag, the middle part of which is used to form the drainage channel 31 to support the drainage channel 31 to remain open. The annular structure has better structural stability than the flat structure. The annular structure of the pyloric airbag 3 balances the radial force of the drainage channel 31 and can provide a stable support structure for the drainage channel 31 in the middle, so that the drainage channel is not easily closed after being squeezed. At the same time, the drainage channel 31 in the middle of the annular airbag can have a larger opening area, which is conducive to increasing the flow of gastric juice.

[0057] In some embodiments of the present invention, the pyloric airbag 3 and / or the cardiac airbag 2 are sleeved on the outer surface of the main catheter 1, and are fixedly connected to the annular tube wall of the main catheter 1. The airbags are evenly arranged on the annular circumferential surface of the main catheter 1. When inflated, the airbags around the main catheter 1 expand evenly, wrapping the main catheter 1 in the middle of the airbag. The main catheter 1 and the inner wall of the patient's stomach and intestine are in contact with each other through the inflated soft airbag, which can reduce the stimulation of the main catheter 1 to the internal gastrointestinal mucosa and prevent the patient from having a rejection reaction to the main catheter 1 inserted into the body.

[0058] In some embodiments of the present invention, the pyloric airbag 3 and / or the cardiac airbag 2 are arranged on a single side of the main catheter 1, and are fixedly connected to the outer wall in contact with the main catheter 1. The airbags are arranged on the side wall of the main catheter 1, so that the structure of the main catheter 1 is simple, and no additional processing of the catheter structure is required during production, which is conducive to reducing production costs.

[0059] In some embodiments of the present invention, the main catheter 1 is provided with an airbag groove, so that the airbag is stored inside the airbag groove in the deflated state, and the outer diameter of the tube wall at each position of the main catheter 1 can be kept consistent. Setting the outer diameter of the main catheter 1 to be consistent avoids the appearance of a convex structure on the outer wall of the main catheter 1, and will not irritate or damage the inner wall of the stomach during use. The airbag groove is a groove structure with a smooth arc, which can prevent gastric juice or food residues from remaining inside the airbag groove during use, and avoid bacterial growth.

[0060] In some embodiments of the present invention, Figure 6 and Figure 7As shown, the airbag inflation tube 11 is arranged inside the gastric cavity inflation tube 12, and the side wall of the gastric cavity inflation tube 12 has an opening so that the airbag inflation tube 11 is connected with the airbag outside the main catheter 1. The airbag inflation tube 11 is arranged on the inner wall of the gastric cavity inflation tube 12, which can effectively utilize the internal space of the gastric tube cavity. At this time, the outer diameter of the gastric tube cavity is the outer diameter of the main catheter 1, and the corresponding function of the auxiliary gastric emptying device can be achieved by setting a thinner main catheter 1, which is beneficial to improving the patient's treatment comfort and reducing the difficulty of inserting the auxiliary gastric emptying device with a gastroscope.

[0061] The internal cavity of the airbag inflation tube 11 and the internal cavity of the gastric cavity inflation tube 12 are separated from each other, so that the airbag inflation operation and the gastric cavity pressurization operation can not affect each other, and the life safety of the patient can be guaranteed. Since the airbag inflation tube 11 is mainly used to inflate the airbag to expand the pyloric airbag 3 and the cardiac airbag 2, the gas flow rate inside it is faster and the air pressure is higher, while the gastric cavity inflation tube 12 is mainly used to inflate the inner wall of the gastric cavity, so the gas flow rate of its inner wall is slower and the air pressure is lower. The airbag inflation tube 11 and the gastric cavity inflation tube 12 are separated from each other, which can prevent the high-pressure gas on the inner wall of the airbag inflation tube 11 from entering the gastric cavity through the gastric cavity inflation tube 12, resulting in excessive air pressure inside the gastric cavity, thereby affecting the life safety of the patient.

[0062] In some embodiments of the present invention, the length of the main catheter 1 is configured to be 600mm~1200mm, and its outer diameter is configured to be 3mm~6mm; the outer diameter of the pyloric balloon 3 is configured to be 8mm~15mm, the outer diameter of the cardiac balloon 2 is configured to be 8mm~10mm, and the inner diameter of the drainage channel 31 is configured to be 2mm~4mm, including but not limited to the above. For patients with special physical conditions, the length and size of the auxiliary gastric emptying device can be tailored according to actual conditions.

[0063] In some embodiments of the present invention, the auxiliary gastric emptying device further includes an air pump, which is used to connect to each inflation port to inflate and deflate the air bag or the stomach cavity. The air pump should be able to output gas with different pressures and flow rates to correspond to the different working requirements of the air bag inflation tube 11 and the stomach cavity inflation tube 12. The air pump is also provided with a timer, which can automatically start to perform the set work at a predetermined time after the timing.

[0064] According to the technical solution of the auxiliary gastric emptying device in the embodiment of the present invention, the beneficial effects that can be achieved include at least:

[0065] (1) The auxiliary gastric emptying device in the embodiment of the present invention can assist the patient's gastric cavity in emptying gastric juice, which is beneficial to shorten the recovery time of postoperative gastroparesis syndrome, simplify the treatment procedure, and is of great significance to the patient's recovery.

[0066] (2) The gastric cavity tube in the embodiment of the present invention is provided with an exhaust hole, which can inflate and pressurize the gastric cavity, thereby accelerating the discharge speed of gastric juice.

[0067] (3) The cardia airbag in the embodiment of the present invention is arranged at the cardia position and can close the cardia in the inflated state to prevent gastric juice from flowing back into the esophagus.

[0068] (4) The pyloric balloon in the embodiment of the present invention is disposed at the pylorus and can expand the pylorus when inflated, so that gastric juice can be discharged from the stomach cavity through the pylorus.

[0069] (5) The pyloric balloon in the embodiment of the present invention is provided with a drainage channel, which enables the gastric fluid in the gastric cavity to be discharged from the gastric cavity through the drainage channel under an inflated and pressurized state.

[0070] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0071] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with features of other embodiments or replace features of other embodiments.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for assisting gastric emptying, characterized in that: The auxiliary gastric emptying device comprises: a main catheter (1), a cardiac air bag (2), and a pyloric air bag (3); Wherein, the main catheter (1) comprises a pyloric airbag tube (11-1), one end of the pyloric airbag tube (11-1) has an inflation port, and the other end or the middle is connected to the pyloric airbag (3); The main catheter (1) also includes a cardia airbag tube (11-2), one end of the cardia airbag tube (11-2) has an inflation port, and the other end or the middle is connected to the cardia airbag (2); The main catheter (1) also includes a gastric cavity inflation tube (12), one end of the gastric cavity inflation tube (12) has an inflation port, and the other end or the middle has an exhaust hole (121), the exhaust hole (121) is used to be arranged in the gastric cavity so as to inflate and pressurize the gastric cavity; The cardia airbag (2) is used to be arranged at the cardia position so as to close the cardia in an inflated state; The pyloric airbag (3) is used to be arranged at the pylorus position and has a drainage channel (31) so that the pylorus can be opened when inflated, and gastric fluid in the gastric cavity can be discharged from the gastric cavity through the drainage channel (31) when inflated and pressurized.

2. The device for assisting gastric emptying according to claim 1, characterized in that: The pyloric airbag tube (11-1) and the cardiac airbag tube (11-2) are configured as the same airbag inflation tube (11); One end of the airbag inflation tube (11) has an inflation port, the middle portion of which is connected to the cardiac airbag (2), and the other end of which is connected to the pyloric airbag (3), so that the cardiac airbag (2) and the pyloric airbag (3) can be inflated or deflated at the same time.

3. The device for assisting gastric emptying according to claim 1, characterized in that: The length of the tube section of the main catheter (1) from the pyloric airbag (3) to the exhaust hole (121) is d, the length of the tube section of the main catheter (1) from the pyloric airbag (3) to the cardiac airbag (2) is D, and the setting position of the exhaust hole (121) is configured to satisfy: 0.5*D≤d≤0.9*D.

4. The device for assisting gastric emptying according to claim 1, characterized in that: The exhaust hole (121) is provided with a one-way valve so that the gas in the gastric cavity inflation tube (12) can be unidirectionally passed into the gastric cavity; or, The exhaust hole (121) is provided with a waterproof breathable membrane, so that the gas inside the gastric cavity inflation tube (12) can pass through the waterproof breathable membrane into the gastric cavity, and prevent the liquid inside the gastric cavity from entering the gastric cavity inflation tube (12).

5. The device for assisting gastric emptying according to claim 1, characterized in that: The drainage channel (31) has a flared portion (311), and the flared portion (311) is in the shape of an outwardly flared trumpet mouth and is arranged at the entrance position of the drainage channel (31).

6. The device for assisting gastric emptying according to claim 1, characterized in that: The cardia airbag (2) and the pyloric airbag (3) are configured as at least one of a cylindrical airbag and a spherical airbag; or, The cardia airbag (2) is configured as a ring-shaped airbag, the center of which is used to arrange the main catheter (1); and / or, The pyloric airbag (3) is configured as an annular airbag, the middle portion of which is used to form the drainage channel (31) to support the drainage channel (31) to remain open.

7. The device for assisting gastric emptying according to claim 1, characterized in that: The pyloric airbag (3) and / or the cardiac airbag (2) are sleeved on the outer surface of the main catheter (1) and are fixedly connected to the annular tube wall of the main catheter (1); or, The pyloric airbag (3) and / or the cardiac airbag (2) are arranged at a single side of the main catheter (1) and are fixedly connected to the outer wall of the main catheter (1) in contact therewith; or, The main conduit (1) is provided with an airbag groove so that the airbag can be stored inside the airbag groove in a deflated state, thereby enabling the outer diameter of the tube wall at each position of the main conduit (1) to remain consistent.

8. The device for assisting gastric emptying according to claim 1, characterized in that: The airbag inflation tube (11) is arranged inside the gastric cavity inflation tube (12), and the side wall of the gastric cavity inflation tube (12) has an opening so that the airbag inflation tube (11) and the airbag outside the main catheter (1) are connected to each other; The inner cavity of the air bag inflation tube (11) and the inner cavity of the gastric cavity inflation tube (12) are separated from each other.

9. The device for assisting gastric emptying according to claim 1, characterized in that: The main conduit (1) has a length of 600 mm to 1200 mm and an outer diameter of 3 mm to 6 mm; The outer diameter of the pyloric airbag (3) is configured to be 8 mm to 15 mm, the outer diameter of the cardiac airbag (2) is configured to be 8 mm to 10 mm, and the inner diameter of the drainage channel (31) is configured to be 2 mm to 4 mm.

10. The device for assisting gastric emptying according to claim 1, characterized in that: The auxiliary gastric emptying device also includes an air pump, which is used to connect with each inflation port to inflate and deflate the air bag or the stomach cavity.

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