Stomach pylorus expansion balloon pipeline

Abstract

The invention discloses a stomach pylorus dilatation balloon pipeline, and relates to the technical field of medical instruments, the stomach pylorus dilatation balloon pipeline comprises a pylorus balloon and a small intestine balloon, a membrane tube is communicated between the pylorus balloon and the small intestine balloon, the pylorus balloon comprises a dilatation balloon and a functional layer, the functional layer covers the outer side of the dilatation balloon, and the membrane tube is communicated with the membrane tube. The two ends of the functional layer are fixed to the upper side and the lower side of the inner side of the dilation balloon, a medicine storage ring is arranged in the functional layer, an outer side film of the functional layer is folded inwards to form the medicine storage ring, the medicine storage ring is gradually opened along with dilation of the dilation balloon, the middle portion of the outer side of the dilation balloon is concaved inwards, and the medicine storage ring is arranged in the middle of the dilation balloon. And the upper part and the lower part of the outer side of the expansion balloon protrude outwards.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a gastric pyloric dilation balloon conduit. Background Technology

[0002] Various surgical techniques and implants have been proposed to treat obesity. Surgical techniques include creating a gastric pouch and gastric bypass surgery involving the stomach, duodenum, and part of the jejunum. It has been proposed to insert a bypass tube or liner into the gastrointestinal tract to bypass the duodenum and optionally part of the jejunum, thereby reducing duodenal absorption of food and thus treating obesity.

[0003] One current technique involves anchoring the tube near the pylorus, which connects directly to the jejunum, allowing food to bypass the duodenum. However, the stomach and intestines undergo significant movement during normal bodily function. Muscle contractions in the stomach, including those of the pylorus, complicate maintaining the tube's position. These contractions can be very intense, for example, during vomiting. Displacement into the duodenum or stomach may require medical intervention to correct the position or retrieve the bypass tube. Many existing proposals are hampered by the need for both secure anchoring and non-invasive integration with body tissues to avoid significant tissue damage from the device. Summary of the Invention

[0004] Purpose of the invention: The technical problem to be solved by the present invention is to provide a pyloric dilation balloon tube for the stomach, which solves the problem that existing pyloric tubes are prone to displacement and have a significant impact on body tissues.

[0005] Technical solution

[0006] To solve the above problems, the technical solution provided by the present invention is as follows:

[0007] A gastric pyloric dilation balloon conduit includes a pyloric balloon and a small intestinal balloon, with a membrane tube connecting the pyloric balloon and the small intestinal balloon. The pyloric balloon includes a dilation balloon and a functional layer. The functional layer covers the outside of the dilation balloon, and its two ends are fixed to the upper and lower sides of the inner side of the dilation balloon. A drug reservoir ring is provided inside the functional layer. The drug reservoir ring is formed by folding the outer membrane of the functional layer inward. The drug reservoir ring gradually opens as the dilation balloon expands. The middle part of the outer side of the dilation balloon is concave inward, and the upper and lower parts of the outer side of the dilation balloon protrude outward.

[0008] Furthermore, the inwardly recessed portion of the outer side of the dilating balloon is stuck at the pylorus.

[0009] Furthermore, the bent portions at both ends of the drug storage ring are connected to each other.

[0010] Furthermore, the functional layer is provided with several drug delivery components at the upper and lower ends of the bent portion of the drug storage ring, and the drug delivery components include a semi-circular shell and a sensor disposed inside the semi-circular shell.

[0011] Furthermore, the semi-circular shell is coated with a hydrogel, which is a drug-loaded hydrogel.

[0012] Furthermore, the hydrogel contains electrodes, which are electrically connected to the sensor.

[0013] Furthermore, the sensor is fixedly mounted on the outer end of the semi-circular shell.

[0014] Furthermore, the membrane tube is provided with nickel-titanium wires that are evenly distributed in a ring, extending from the pyloric balloon to the small intestinal balloon.

[0015] Furthermore, the small intestinal balloon is formed by connecting the head and tail of a corrugated tube and circling it around.

[0016] Furthermore, the membrane tube is disposed inside the dilating balloon and the small intestinal balloon.

[0017] Beneficial effects

[0018] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0019] The technical solution provided by this invention can secure a pyloric balloon to the pyloric sphincter. By designing the shape of the outer side of the balloon, it can be secured at the pylorus after inflation, preventing the balloon from moving. The pyloric balloon also contains a cavity for storing medication, which opens as the balloon expands, covering the stored medication onto the tissue and reducing irritation to the stomach tissue. Furthermore, the outer side of the pyloric balloon can release corresponding medications according to the condition of the stomach tissue, greatly improving irritation to the patient. Simultaneously, the small intestinal balloon, through full contact with the small intestine, can be well fixed within it. The membrane tube connecting the pyloric and small intestinal balloons contains nickel-titanium wires for support, preventing the membrane tube from collapsing and facilitating food passage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a cross-sectional view of the pyloric balloon dilation in Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the outer side of the functional layer during pyloric balloon dilation in Embodiment 1 of the present invention;

[0023] Figure 4This is a cross-sectional view of the pyloric balloon without dilation in Embodiment 1 of the present invention;

[0024] Figure 5 This is a schematic diagram of the outer side of the functional layer of the pyloric balloon when it is not dilated, according to Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the drug delivery component structure in Embodiment 1 of the present invention;

[0026] Figure 7 This is a top view schematic diagram of the small intestinal balloon structure in Embodiment 1 of the present invention;

[0027] Figure 8 This is a side view of the small intestinal balloon structure of Embodiment 1 of the present invention.

[0028] 1. Pyloric balloon; 11. Dilatation balloon; 12. Functional layer; 121. Drug reservoir ring;

[0029] 2. Small bowel balloon;

[0030] 3. Membrane tube;

[0031] 4. Dosing component; 41. Semi-circular shell; 42. Electrode; 43. Hydrogel;

[0032] 5. General Manager; Detailed Implementation

[0033] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] Combined with appendix Figure 1-8 A gastric pyloric dilation balloon conduit includes a pyloric balloon 1 and a small intestinal balloon 2, with a membrane tube 3 connecting the two. The pyloric balloon 1 is placed at the pylorus of the stomach and fixed therein, while the small intestinal balloon 2 is fixed at the junction of the duodenum and jejunum. The membrane tube 3 penetrates the entire duodenum through the fixation of the pyloric balloon 1 and the small intestinal balloon 2. By dilating the pyloric opening of the stomach, food can pass through the pyloric balloon 1 and enter the membrane tube 3. After entering the membrane tube 3, food passes through the entire membrane tube 3 and is finally discharged from the small intestinal balloon 2. The membrane tube 3 encapsulates the food, preventing it from contacting the duodenum and thus avoiding duodenal absorption.

[0036] The pyloric balloon 1 is fixed at the pyloric opening. By counteracting the contraction of the pyloric sphincter, it keeps the pyloric opening open. The pyloric balloon 1 has a double-layer structure. The inner layer is the dilating balloon 11, which is used to open the pyloric sphincter. The outer layer of the dilating balloon 11 is covered with a functional layer 12, which is used to store drugs, assist in fixing the balloon, and monitor the balloon's status and administer drugs.

[0037] The functional layer 12 covers the outside of the dilatation balloon 11. The direction of the pyloric sphincter relative to the balloon is defined as the lateral direction, and the opposite direction is defined as the medial direction. The functional layer 12 contacts the gastric tissue on the outside of the dilatation balloon 11. The functional layer 12 and the dilatation balloon 11 are a combined structure. After the dilatation balloon 11 is inflated, it can support and expand the functional layer 12, thereby realizing the various functions of the functional layer 12. The functional layer 12 covers the dilatation balloon 11, and the connection end between the functional layer 12 and the dilatation balloon 11 needs to be on the inside of the dilatation balloon 11. So that when the dilatation balloon 11 is inflated and expands, it can fully compress the functional layer 12 to realize its various functions.

[0038] The functional layer 12 is fixed to the expansion balloon 11. The cross-section of the functional layer 12 is a semi-circular arc shape with a notch on the inner side. Both ends of the functional layer 12 are fixed to the inner side of the expansion balloon 11. That is, the functional layer 12 wraps around the expansion balloon 11 from the outside to the inside, and fixes both ends of the functional layer 12 to the inner side of the expansion balloon 11. The two ends are respectively located on the upper and lower sides of the inner side of the expansion balloon 11. The functional layer 12 is only fixed to the expansion balloon 11 by its two ends; the rest of the functional layer 12 is not fixed to the expansion balloon 11. The inner part of the balloon is not wrapped by the functional layer 12, which not only facilitates the inflation of the expansion balloon 11, but also allows the membrane tube 3 to be directly fixed to the inner side of the expansion balloon 11. At the same time, the two ends of the functional layer 12 being fixed to the upper and lower sides of the inner side of the expansion balloon 11 allows the expansion balloon 11 to achieve a better compression effect when inflated.

[0039] The outer portion of the dilatation balloon 11 has an inward-curving structure. The upper and lower structures on the outer side of the dilatation balloon 11 protrude outward from the middle portion of the outer side of the dilatation balloon 11, thus forming an inward-curving middle portion on the outer side of the dilatation balloon 11. The concave portion of the middle portion of the outer side of the dilatation balloon 11 corresponds to the sphincter muscle at the pylorus of the stomach. Thus, the contraction of the sphincter muscle, in conjunction with the concave portion of the dilatation balloon 11, can achieve a holding and fixing effect on the dilatation balloon 11, making it difficult for the dilatation balloon 11 to slip out of the pylorus of the stomach due to stomach movement. At the same time, the fixation of the dilatation balloon 11 can further fix the functional layer 12. The distance between the innermost point of the middle portion of the outer side of the dilatation balloon 11 and the outermost points of the upper and lower sides of the middle portion should not exceed 2 mm, preferably 1-1.5 mm. This not only provides a good fixing effect but also prevents the diameter of the pylorus from becoming too small, thus preventing food from passing through.

[0040] A drug storage ring 121 is provided on the outer side of the functional layer 12. Both the functional layer 12 and the balloon are made of polymer membrane. The drug storage ring 121 is formed by folding the outer membrane layer of the functional layer 12 inward into the functional layer 12 at the middle part. That is, the functional layer 12 is folded to create a cavity inside the functional layer 12 and stores the drug in the cavity, so that the functional layer 12 can carry the drug. The opening of the drug storage ring 121 faces the outer side of the functional layer 12. When the balloon 11 is inflated, the drug can be discharged, thereby reducing the damage to the stomach caused by the balloon expansion.

[0041] The outer side of the functional layer 12 is folded inwards to a suitable membrane width. Through symmetrical folding on the upper and lower sides, the membrane folded into the functional layer 12 can form a storage space. The folded positions on the upper and lower sides of the functional layer 12 abut each other, and the membranes at the abutting folded positions are fixed to each other, so that the drug storage ring 121 folded into the functional layer 12 forms a closed drug storage space. The drug storage ring 121 is filled with drugs, so that when the functional layer 12 reaches the pylorus of the stomach, it can continuously supply drugs to the area around the pylorus. As the balloon inflates, it supports the functional layer 12, causing the drug reservoir ring 121 to open and move outward. With the continuous expansion of the balloon 11, the balloon supports the functional layer 12, pulling the drug reservoir ring 121 upwards and downwards. At this point, the folded ends of the drug reservoir ring 121, which were originally fixed together, will break, opening an outward-facing opening. Because the membrane inside the drug reservoir ring 121 and the functional layer 12... 2 are the same membrane layer. As the functional layer 12 expands along with the dilating balloon 11, the drug storage ring 121 tends to revert to a single membrane layer with the functional layer 12. During this process, the drug storage ring 121 moves outward continuously, and the opening on the outer side of the drug storage ring 121 becomes larger and larger. Eventually, the folded part of the drug storage ring 121 is fully unfolded, and the inner membrane of the drug storage ring 121 and the membrane of the functional layer 12 transition smoothly. At this time, the drug in the drug storage ring 121 is fully exposed at the pylorus.

[0042] When the balloon 11 is not inflated, the drug reservoir 121 is located inside the functional layer 12. After the balloon 11 restarts its expansion, it expands the functional layer 12. When the functional layer 12 is expanded by the balloon 11, the membrane on the outside of the functional layer 12 moves up and down, thus expanding the functional layer 12 and pulling open the drug reservoir 121, creating an outward opening. As the functional layer 12 continues to expand outward, the outer side of the functional layer 12 continuously pulls the folded portions at both ends of the drug reservoir 121 up and down, causing the drug reservoir 121 to move outward. This allows the drug filled in the drug reservoir 121 to cover the pylorus of the stomach. The drug in the drug reservoir 121 is preferably a drug that can relieve pyloric contraction or tissue damage, reducing the discomfort caused by balloon expansion.

[0043] The folded portions at both ends of the drug storage ring 121 can be fixed together by adhesive. A cutting line is set at the connection position, so that when the functional layer 12 expands outward, the folded portions at both ends can move to the sides, the cutting line breaks, and the folded portions at both ends can be separated. In other embodiments, the drug storage ring 121 can be directly fixed inside the functional layer 12, with both ends of the drug storage ring 121 fixedly connected to the functional layer 12. A cutting line is set on the membrane of the functional layer 12 located between the two ends of the drug storage ring 121. In this way, although the drug storage ring 121 is subsequently fixed inside the functional layer 12, since both ends of the drug storage ring 121 are fixed to the functional layer 12, when the functional layer 12 expands outward, the membrane of the functional layer 12 at the cutting line position will break. Then, as the functional layer 12 expands outward, the drug storage ring 121 is pulled open, thus achieving the same effect of the drug storage ring 121 opening as the functional layer 12 expands outward.

[0044] As the balloon 11 continues to inflate and expand, the balloon 11 will expand along with the functional layer 12. Since the two ends of the functional layer 12 are fixed to the upper and lower sides of the inner side of the balloon 11, and the inner side of the balloon 11 will also expand when it is inflated, the membrane of the functional layer 12 will move inward due to the expansion of the balloon 11. At this time, the functional layer 12 not only further opens the opening of the drug storage ring 121 towards the outside, but also assists the balloon 11 in squeezing the drug storage ring 121 located on the outside of the balloon 11, so that the drug stored in the drug storage ring 121 can come into closer contact with the stomach tissue.

[0045] Furthermore, because the outer side of the inflation balloon 11 is a concave structure with the middle inward and the upper and lower sides protruding outward, when the inflation balloon 11 inflates, the protruding structures on the upper and lower sides allow the functional layer 12 to be further pulled open at the folded portions at both ends of the drug reservoir ring 121, thus exposing the drug reservoir ring 121. It is worth noting that the main force for opening the drug reservoir ring 121 comes from the expansion of the functional layer 12 when it is supported by the inflation balloon. This expansion pulls the folded portions at both ends of the drug reservoir ring 121 to move upward and downward, thereby opening the drug reservoir ring 121 and causing it to move outward. During this process, the compression of the drug reservoir ring 121 by the inflation balloon 11 only plays an auxiliary role, while the functional layer 12 fully exerts its influence. When opened, the expansion balloon 11 completely compresses the functional layer 12. At this time, the concave structure on the outer side of the expansion balloon 11 not only allows the drug stored in the drug storage ring 121 to be closer to the stomach tissue, but also the concave structure in the middle of the outer side of the expansion balloon 11 can simultaneously make the functional layer 12 present a concave structure in the middle. The concave part in the middle of the functional layer 12 corresponds to the drug storage position of the drug storage ring 121. At this time, the concave part in the middle of the functional layer 12 can ensure that the drug stored in the drug storage ring 121 will not disperse, so that the drug can still gather in the middle position on the outer side of the functional layer 12, preventing the drug from dispersing and thus weakening the drug effect. At the same time, since the stomach tissue contains mucosa and secretions, the drug in the middle of the outer side of the functional layer 12 can continuously contact the stomach tissue, so that the drug can continue to exert its effect.

[0046] The functional layer 12 has randomly distributed drug delivery components 4 on the upper and lower sides of the folded positions at both ends of the drug storage ring 121. The drug delivery components 4 are not on the constituent membrane of the drug storage ring 121 to prevent interference between the drug delivery components 4 and the drug storage ring 121. The drug delivery component 4 includes a soft semi-circular shell 41. The semi-circular shell 41 is evenly placed on the upper and lower sides of the outer surface of the functional layer 12. A sensor is installed inside the semi-circular shell 41. The semi-circular shell 41 protrudes from the surface of the functional layer 12. When the sensor inside the semi-circular shell 41 is squeezed by the expansion balloon 11, the semi-circular shell 41 will be fully expanded, so that the semi-circular shell 41 protrudes outward from the surface of the functional layer 12. And due to the support of the expansion balloon 11, the semi-circular shell 41 will not sink. Since the sensor is installed inside the semi-circular shell 41, when the expansion balloon 11 expands, it squeezes the sensor, and the sensor further squeezes the semi-circular shell 41 outward, so that the semi-circular shell 41 protrudes from the surface of the functional layer 12.

[0047] Each semi-circular shell 41 is surrounded by a hydrogel 43, which is a drug-loaded hydrogel. The hydrogel 43 surrounds the semi-circular shell 41, and the drug release of the hydrogel 43 is controlled by a sensor inside the semi-circular shell 41. The drug carried by the hydrogel 43 can be selected as a specific drug. The drug carried by the hydrogel 43 works in conjunction with the sensor to release the drug in a specific way for a certain indicator or condition in the stomach. That is, when the drug carried in the hydrogel 43 is a drug to relieve stomach spasms, the sensor inside the semi-circular shell 41 is a pressure sensor; when it is necessary to detect the pH of the stomach environment, the sensor shell is selected as a pH detection sensor. A micro probe can be set on the sensor to penetrate the semi-circular shell 41. The hydrogel 43 carries a drug to regulate the pH of the stomach. That is, the preferred types of drug release by the hydrogel 43 in conjunction with the sensor are pH-responsive drug release, enzyme-responsive drug release, and pressure-triggered drug release, which triggers the release of the corresponding drug from the hydrogel 43 according to the stomach tissue environment and the situation.

[0048] Hydrogel 43 is coated around the semi-circular shell 41. Electrodes 42 are evenly arranged in a ring around the hydrogel 43 surrounding the semi-circular shell 41. Electrodes 42 are electrically connected to sensors. Electrodes 42 are controlled by sensors and can control the release of drugs from the hydrogel 43. Common drug release methods of electrodes 42 include temperature-induced drug release. For example, pressure-triggered drug release is achieved by using pressure sensors. When multiple pressure sensors distributed on the functional layer 12 detect abnormal pressure or gastric spasm, the sensors trigger the electrodes 42 to heat up. After the electrodes 42 are heated, the hydrogel 43 heats up and releases drugs, thereby relieving the gastric spasm.

[0049] The sensor is placed inside the semi-circular shell 41, and the sensor inside the semi-circular shell 41 is fixed to the outward-protruding end of the semi-circular shell 41. This prevents the sensor from shifting due to the expansion of the inner side of the sensor caused by the expansion of the balloon 11. The sensor is fixed to the outward-protruding end of the semi-circular shell 41. When the balloon 11 is inflated and expands outward, it not only prevents the sensor from moving, but also allows the sensor to further push the semi-circular shell 41 outward when it is squeezed by the balloon 11. Press down to maintain the convex structure of the semi-circular shell 41. At this time, the semi-circular shell 41 can fit tightly against the inner side of the gastric trachea, which not only facilitates the contact between the hydrogel 43 and the gastric tissue, but also allows the drug to act directly on the gastric tissue when the hydrogel 43 releases the drug. It also facilitates the sensor to detect changes in the condition of the gastric tissue in a timely manner. Furthermore, the convex structure of the semi-circular shell 41 can also play a role in fixation. The convex structure of the semi-circular shell 41 and the gastric tissue abut against each other, thereby increasing the friction of the functional layer 12, which can further prevent the expansion balloon 11 from moving and make it stably set at the pylorus.

[0050] A flexible circuit can be installed inside the sensor. This flexible circuit, combined with the sensor's detection structure, controls the electrode 42, thereby further controlling the drug release from the hydrogel 43. The motor is electrically connected to the sensor's flexible circuit. The connecting wires can be provided with a certain margin to cooperate with the outward expansion of the semi-circular shell 41 and prevent the sensor from losing connection with the electrode 42 inside the hydrogel 43.

[0051] The membrane tube 3 between the pyloric balloon 1 and the small intestinal balloon 2 is used to isolate the duodenum from food, thereby reducing the absorption of food by the duodenum. The side wall of the membrane tube 3 is provided with nickel-titanium wires extending from the pyloric balloon 1 to the small intestinal balloon 2. The nickel-titanium wires can support the membrane tube 3, prevent it from bending or curling, and ensure that the membrane tube 3 can completely penetrate the duodenum. The nickel-titanium wires are arranged around the side wall of the membrane tube 3. Multiple nickel-titanium wires can also prevent the side wall of the membrane tube 3 from collapsing, so that the membrane tube 3 can maintain a sufficient inner diameter to ensure that food can pass through. The two ends of the membrane tube 3 are respectively set at the inner ends of the pyloric balloon 1 and the small intestinal balloon 2 to prevent excessive friction at the outer ends of the pyloric balloon 1 and the dilation balloon 11, which could cause the membrane tube 3 to rupture.

[0052] The small intestinal balloon 2 is composed of a series of folded corrugated tube structures connected end to end. While its structure resembles a regular corrugated tube, it is not a conventional one. Because the inner diameter of the small intestine varies relatively little, a corrugated tube is used to ensure the balloon 2 can pass through the duodenum and remain stable. The balloon's expansion degree can be adjusted according to the inner diameter of the small intestine. The corrugated tube can be lengthened or shortened to accommodate the maximum outer diameter the balloon 2 can expand within the small intestine. When the intestinal balloon 2 is enlarged, continuous inflation can lengthen the outer diameter of the small intestinal balloon 2. Continuous inflation can also lengthen the corrugated tube. Due to the lengthening of the annular corrugated tube, the outer diameter of the small intestinal balloon 2 becomes larger. The outer diameter of the small intestinal balloon 2 is a process of increasing from small to large. Therefore, during inflation, it is only necessary to make the outer surface of the small intestinal balloon 2 fit tightly against the intestine. The shape of the corrugated tube can increase the friction between the small intestinal balloon 2 and the intestinal wall. Through the contact between the corrugated tube and the inner wall of the intestine, the small intestinal balloon 2 is fixed.

[0053] The membrane tube 3 is preferably fixed inside the small intestinal balloon 2. The connection point between the membrane tube 3 and the small intestinal balloon 2 is selected on the inwardly protruding structure inside the corrugated tube of the small intestinal balloon 2. Thus, when the corrugated tube of the small intestinal balloon 2 expands and contracts, the membrane tube 3 will not be affected. Moreover, since the corrugated tube expands and contracts as a whole, when the outer diameter of the small intestinal balloon 2 is small, the membrane tube 3 will be evenly stacked at one end of the small intestinal balloon 2, and there will be no uneven stacking distribution with one side being severely stacked and the other side being less stacked.

[0054] Both the small intestinal balloon 2 and the dilatation balloon 11 are equipped with ventilation channels. When the ventilation channels of the small intestinal balloon 2 and the dilatation balloon 11 are led out to the outside, they can be integrated into a main tube 5. The ventilation channels of the small intestinal balloon 2 and the dilatation balloon 11 are independently set inside the main tube 5. The ventilation channel of the dilatation balloon 11 is connected inside the dilatation balloon 11. The ventilation channel of the small intestinal balloon 2 can extend from the pyloric balloon 1 to the small intestinal balloon 2. The inflation channel of the small intestinal balloon 2 is preferably connected from the inside of the pyloric balloon 1 through the inside of the membrane tube 3 to the inside of the small intestinal balloon 2. When the ventilation channel of the small intestinal balloon 2 passes through the membrane tube 3, it is set close to any nickel-titanium wire to prevent the ventilation channel from deforming and to prevent poor ventilation effect.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A pyloric dilation balloon conduit for the stomach, characterized in that, The device includes a pyloric balloon and a small intestinal balloon, which are connected by a membrane tube. The pyloric balloon includes an expansion balloon and a functional layer. The functional layer covers the outside of the expansion balloon, and its two ends are fixed to the upper and lower sides of the inside of the expansion balloon. A drug storage ring is provided inside the functional layer. The drug storage ring is formed by folding the outer membrane of the functional layer inward. The drug storage ring gradually opens as the expansion balloon expands. The middle part of the outer side of the expansion balloon is concave inward, and the upper and lower parts of the outer side of the expansion balloon protrude outward.

2. The gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The inwardly recessed portion of the outer side of the dilating balloon gets stuck at the pylorus.

3. The gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The bent portions at both ends of the drug storage ring are connected to each other.

4. The gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The functional layer is provided with several drug delivery components at the upper and lower ends of the bent portion of the drug storage ring. Each drug delivery component includes a semi-circular shell and a sensor disposed inside the semi-circular shell.

5. A gastric pyloric dilation balloon conduit according to claim 4, characterized in that, The semi-circular shell is coated with a hydrogel, which is a drug-loaded hydrogel.

6. A gastric pyloric dilation balloon conduit according to claim 5, characterized in that, The hydrogel contains electrodes, which are electrically connected to the sensor.

7. A gastric pyloric dilation balloon conduit according to claim 4, characterized in that, The sensor is fixedly mounted on the outer end of the semi-circular shell.

8. A gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The membrane tube contains uniformly distributed nickel-titanium wires that extend from the pyloric balloon to the small intestinal balloon.

9. A gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The small intestinal balloon is formed by connecting the head and tail of a corrugated tube and circling it around.

10. A gastric pyloric dilation balloon conduit according to claim 1, characterized in that, The membrane tube is disposed inside the dilating balloon and the small intestinal balloon.

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