An occlusion balloon device

Abstract

This invention relates to an occlusion balloon device for applying pressure to stop bleeding from blood vessels in the gastric fundus. The occlusion balloon device includes a balloon catheter and a wearing device. The balloon catheter includes a balloon and a conduit, with the balloon positioned at the distal end of the conduit. The wearing device includes a wearing component and a fixing component. The fixing component is connected to the wearing component, and the conduit is fixed to the wearing component via the fixing component. This invention employs a wearable wearing device to fix the balloon catheter to the patient, providing continuous and stable traction and ensuring the hemostatic effect of the balloon. Furthermore, because the balloon catheter is worn on the patient through the wearing device, the patient is not restricted by the bed, allowing for some mobility, greatly reducing patient discomfort, and facilitating operation by the doctor.

Description

Technical Field

[0001] This invention relates to the field of interventional medicine, specifically to an occlusion balloon device. Background Technology

[0002] Esophageal and gastric variceal bleeding (EGVB) mainly refers to the rupture and bleeding of variceal veins in the stomach or esophagus caused by portal hypertension due to diseases such as cirrhosis. When the variceal walls are damaged or pressure increases, the variceal veins rupture. In patients with cirrhosis, esophageal and gastric variceal bleeding is a common complication, with an incidence rate of approximately 20% to 50%, a very high frequency. The mortality rate after the first hemorrhage is as high as 20%, potentially leading to death in cirrhosis patients. Esophageal and gastric variceal bleeding is characterized by a rapid and profuse onset, often accompanied by vomiting. If not treated promptly, it is often life-threatening; approximately half of patients die from the first major hemorrhage.

[0003] The currently used three-lumen two-balloon traction tube is complex, requiring one end to be fixed to the bed and using a traditional rope to suspend a heavy object to tighten the balloon, which is inconvenient for doctors. Furthermore, the traction force used not only causes significant patient discomfort, but prolonged compression can also lead to esophageal and gastric cardia erosion. The existing three-lumen two-balloon tube has a large overall diameter, making it difficult to insert into the patient's esophagus. Because it cannot provide stable traction force, the balloon needs to be placed in the esophagus to prevent displacement and loss of esophageal closure. The balloon placed in the esophagus is very uncomfortable for the patient, resulting in a poor patient experience. During treatment, the patient's limited mobility causes considerable inconvenience and pain, posing a challenge for both doctors and patients. Summary of the Invention

[0004] To overcome the problems existing in the prior art, the present invention provides a occlusion balloon device.

[0005] The present invention provides a balloon occlusion device for compressing and stopping bleeding from blood vessels in the gastric fundus. The balloon occlusion device comprises a balloon catheter and a wearing device. The balloon catheter includes a balloon and a catheter, with the balloon positioned at the distal end of the catheter. The wearing device includes a wearing component and a fixing component, with the fixing component connected to the wearing component. The catheter is fixed to the wearing component via the fixing component.

[0006] In some embodiments of the present invention, a bend is provided on the catheter on the proximal side of the balloon, the bend being bendable such that there is an angle between the proximal and distal ends of the catheter; the bend includes multiple tubular structures and inclined structures, the tubular structures and the inclined structures being alternately connected, and the balloon catheter also includes a support member, the support member being sleeved on the bend.

[0007] In some embodiments of the present invention, the catheter is provided with a first cavity and a second cavity arranged side by side along the axial direction of the catheter, the first cavity and the second cavity being spaced apart, the catheter in the balloon being provided with an filling hole penetrating the inner and outer surfaces of the catheter, the first cavity extending from the proximal end of the catheter to the filling hole, and the second cavity extending from the proximal end of the catheter to the distal end of the catheter.

[0008] In some embodiments of the present invention, the balloon catheter further includes a catheter seat, which is connected to the proximal end of the catheter. The catheter seat includes an filling chamber and an aspiration chamber. The filling chamber is connected to the first cavity, and the aspiration chamber is connected to the second cavity. The cross-sectional area of ​​the second cavity in the circumferential direction is greater than the cross-sectional area of ​​the first cavity in the circumferential direction.

[0009] In some embodiments of the present invention, the wearing component includes a wearing body and a wearing part, one end of the wearing part is connected to one end of the wearing body, the other end of the wearing part is connected to the other end of the wearing body, and the fixing component is disposed on the wearing body.

[0010] In some embodiments of the present invention, the fixing component includes a fixing body, a locking member, and an end cap. The fixing body is disposed on the wearing body, and the fixing body protrudes in a direction away from the wearing body to form a support portion. The side of the support portion is provided with a mating portion having a hollow cavity. The support portion is provided with a through hole, and the through hole communicates with the mating portion. The conduit passes through the through hole, such that the proximal end and the distal end of the conduit are located on both sides of the support portion. One end of the locking member enters into the mating portion and abuts against the outer surface of the conduit. The end cap is connected to the mating portion so that the locking member can be housed in the mating portion.

[0011] In some embodiments of the present invention, the locking member includes an elastic part and an abutting part. One end of the abutting part is used to abut against the conduit, and the other end of the abutting part is connected to one end of the elastic part. The other end of the elastic part abuts against the end cap. A friction section is provided at the proximal end of the conduit. The friction section is disposed in the support part. One end of the abutting part abuts against the friction section, and a resistance-increasing structure is provided on the end face of the end of the abutting part that contacts the friction section.

[0012] In some embodiments of the present invention, the wearing body includes a protective cover and a connecting cover. The proximal end of the protective cover is connected to the connecting cover. The cross-sectional structure of the wearing body along the center line of the length direction is L-shaped. One end of the wearing part is connected to one side of the protective cover, and the other end of the wearing part is connected to the other side of the protective cover. The distal end of the conduit passes through the connecting cover and then through the protective cover.

[0013] In some embodiments of the present invention, the fixing component includes a fixing body, a locking member, and an end cap. The connecting cover is provided with a through portion penetrating the inner and outer surfaces of the connecting cover. The fixing body is located on the side of the connecting cover away from the protective cover. The locking member is located at the end of the fixing body away from the connecting cover. The end cap is located at the end of the locking member away from the fixing body. The distal end of the conduit can pass through the end cap, the locking member, the fixing body, and the through portion in sequence.

[0014] In some embodiments of the present invention, the wearing assembly further includes a stabilizing part, one end of which is connected to the end of the wearing body and the wearing part, and the other end of which is connected to the other end of the wearing body and the wearing part. The stabilizing part, the wearing assembly, and the wearing part are rotatable relative to each other.

[0015] In some embodiments of the present invention, the outer surface of the wearing body protrudes outward to form a mounting portion, and the fixing component includes a fixing body, a locking member, and a buffer member. The fixing body is fixed on the mounting portion, and the locking member and the buffer member are housed within the fixing body. The distal end of the conduit enters the fixing body from one end of the fixing body, passes through the locking member and the buffer member, and exits from the other end of the fixing body.

[0016] Compared with existing technologies, the occlusion balloon device of the present invention has the following advantages: The embodiments of the present invention employ a wearable device to fix the balloon catheter to the patient through wearing, providing continuous and stable traction force to the balloon catheter, eliminating concerns about balloon displacement and ensuring the hemostatic effect of the balloon. Therefore, only one balloon catheter needs to be installed in the gastric fundus, meaning no balloon is needed in the esophagus, thus reducing patient discomfort. Simultaneously, since the balloon catheter is worn on the patient through the wearable device, the patient is not restricted by the bed, allowing for some mobility, such as moving limbs, adjusting body posture, and even getting out of bed to perform a series of activities. This greatly reduces patient suffering and also facilitates operation by doctors. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the occlusion balloon device provided in the first embodiment of the present invention.

[0018] Figure 2 A schematic diagram of the balloon catheter structure of the occlusion balloon device provided in the first embodiment of the present invention.

[0019] Figure 3 yes Figure 2A schematic diagram of the cross-sectional structure along the AA direction.

[0020] Figure 4 This is a schematic diagram of the exploded structure of the occlusion balloon device provided in the first embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the occlusion balloon device with a bent portion provided in the first embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the occlusion balloon device with a support member provided in the first embodiment of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the occlusion balloon device provided in the second embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the exploded structure of the occlusion balloon device provided in the second embodiment of the present invention.

[0025] Figure 9 yes Figure 7 A schematic diagram of the cross-sectional structure along the BB direction.

[0026] Figure 10 yes Figure 8 Enlarged view of point C in the middle.

[0027] Figure 11 This is a three-dimensional structural diagram of the occlusion balloon device provided in the third embodiment of the present invention.

[0028] Figure 12 This is a schematic diagram of the exploded structure of the fixing component of the occlusion balloon device provided in the third embodiment of the present invention.

[0029] Figure 13 This is a three-dimensional structural schematic diagram of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0030] Figure 14 This is a schematic diagram of the explosive structure of the tensioning component of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0031] Figure 15 This is a three-dimensional structural diagram of the torsion spring of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0032] Figure 16 This is a three-dimensional structural diagram of the pin of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0033] Figure 17 This is a schematic diagram of the engagement structure of the first and second locking teeth of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0034] Figure 18This is a schematic diagram of the engagement structure of the first and third locking teeth of the occlusion balloon device provided in the fourth embodiment of the present invention.

[0035] Explanation of reference numerals in the attached diagram: 1. Occlusion balloon device; 11. Balloon catheter; 111. Balloon; 112. Catheter; 1121. First cavity; 1122. Second cavity; 1123. Inflation port; 1124. Friction section; 1125. Bend; 1126. Tubular structure; 1127. Angled structure; 113. Tip head; 114. Main body section; 12. Wearing device; 121. Wearing assembly; 1211. Wearing body; 1212. Wearing part; 122. Fixing assembly; 1221. Fixing body; 1222. Locking element; 1223. End cap; 1224. 1. **Setup Section;** 1225. **Matching Section;** 1226. **Elastic Section;** 1227. **Abutment Section;** 115. **Catheter Seat;** 1151. **Inflation Chamber;** 1152. **Aspiration Chamber;** 116. **Support Component;** 2. **Occlusion Balloon Device;** 21. **Balloon Catheter;** 22. **Wearing Device;** 221. **Wearing Assembly;** 2211. **Wearing Body;** 2212. **Wearing Part;** 2213. **Protective Cover;** 2214. **Connecting Cover;** 2215. **Passage Section;** 2216. **Ventilation Hole;** 222. **Fixing Assembly;** 2221. **Fixing Body;** 2222. **Locking Component;** 2223. **End Cap;** 3. **Occlusion Balloon Device 31. Balloon catheter; 32. Wearing device; 321. Wearing assembly; 3211. Wearing body; 3212. Wearing part; 3213. Stabilizing part; 3214. Frame part; 322. Fixing assembly; 3221. Fixing body; 3222. Locking element; 3223. Buffer element; 4. Occlusion balloon device; 41. Balloon catheter; 42. Wearing device; 421. Wearing assembly; 4211. Wearing body; 4212. Wearing part; 4213. Fixing element; 4214. Fixing strap; 4215. Support part; 422. Tightening assembly; 4221. Coiling element ; 4222, Connector; 4223, Groove; 4224, Pin; 4225, Housing; 4226, Rotating Shaft; 4227, Fitting Part; 4228, Rotating Component; 4229, First Clamping Tooth; 4230, Control Component; 4231, Control Component Body; 4232, Connecting Rod; 4233, Toggle Block; 4234, Second Clamping Tooth; 4235, Third Clamping Tooth; 4236, Inclined Structure; 4241, Elastic Component; 4242, Abutting Component; 4251, Receiving Slot; 4220, Torsion Spring; 4261, Free End; 4262, Center End; 4240, Through Slot. Detailed Implementation

[0036] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0040] To more clearly describe the structure of this application, the terms "proximal" and "distal" are used herein as conventional terms in the field of interventional medicine. Specifically, "distal" refers to the end furthest from the operator during the surgical procedure, "proximal" refers to the end closest to the operator during the surgical procedure, "axial" refers to its length direction, and "radial" refers to the direction perpendicular to the "axial".

[0041] Please see Figure 1The first embodiment of the present invention provides a balloon occlusion device 1 for applying pressure to stop bleeding from blood vessels in the gastric fundus. The balloon occlusion device 1 includes a balloon catheter 11 and a wearing device 12. The balloon catheter 11 includes a balloon 111 and a catheter 112. The balloon 111 is disposed at the distal end of the catheter 112 and is used for hemostasis and aspiration of gastric fluid, blood, etc. The wearing device 12 includes a wearing component 121 and a fixing component 122. The fixing component 122 is connected to the wearing component 121, and the catheter 112 is fixed to the wearing component 121 via the fixing component 122. The wearing device 12 is worn on the human body. Specifically, the catheter 112 includes a tip 113 and a main body segment 114. The tip 113 is disposed at the distal end of the main body segment 114, and the balloon 111 is disposed at the distal end of the main body segment 114. In the first embodiment of the present invention, the tip 113 is made of Pebax material with a hardness of 35D, and the main body 114 is made of Pebax material with a hardness of 63D, thereby ensuring that the distal end of the catheter 112 has good flexibility and that the catheter 112 as a whole has good support and pushing performance. The tip 113 enters through the nasal cavity, passes through the esophagus, and enters the stomach. The tip 113 has good flexibility, thereby avoiding damage to the nasal cavity, esophagus, etc., by the catheter 112 and reducing irritation to the patient. After the distal end of the catheter 112 enters the stomach, the balloon 111 can be inflated. The doctor then pulls the balloon catheter 111 according to actual needs, so that the balloon 111 is held against the gastric fundus and cardia, thereby compressing and stopping the bleeding blood vessels in the gastric fundus. The proximal end of the balloon catheter 11 is then connected to the fixation component 122, fixing the balloon catheter 11 to the fixation component 122, thereby connecting the balloon catheter 11 to the wearing component 121. Further, the balloon 111 is made of transparent TPU 80A material, manufactured using a blow molding process. The wall thickness of the balloon 111 is 0.03-0.08 mm, and the diameter of the catheter 112 is 2-4 mm. The overall size of the balloon catheter 11 is small, and the balloon catheter 11 is thin and lightweight, resulting in less pressure on the patient's nasal cavity and esophagus during use, thus reducing patient discomfort and lowering the probability of complications. The balloon 111 is made of ultra-thin, soft, and transparent TPU 80A material, resulting in a small diameter when deflated, facilitating smoother insertion into the patient's body. Meanwhile, the transparent balloon 111, when used with an endoscope, can prevent the balloon 111 from obstructing the endoscope's view, and the effect of compression hemostasis can be observed through the endoscope during the use of the balloon catheter 11.This invention employs a wearable device 12 to secure the balloon catheter 11 to the patient, providing continuous and stable traction and eliminating concerns about balloon displacement, thus ensuring the hemostatic effect of the balloon 111. Therefore, only one balloon 111 needs to be placed in the gastric fundus, eliminating the need for a balloon 111 in the esophagus, thereby reducing patient discomfort. Furthermore, since the balloon catheter 11 is worn on the patient via the device 12, the patient is not restricted by the bed, allowing for some mobility, such as moving limbs, adjusting body posture, and even getting out of bed to perform various activities. This significantly reduces patient suffering and facilitates operation for doctors.

[0042] Please see Figure 2 and Figure 3 The catheter 112 has a first cavity 1121 and a second cavity 1122 arranged side-by-side along the axial direction of the catheter 112, with the first cavity 1121 and the second cavity 1122 spaced apart. The catheter 112 within the balloon 111 has an inflation port 1123 penetrating the inner and outer surfaces of the catheter 112. The first cavity 1121 extends from the proximal end of the catheter 112 to the inflation port 1123, and the second cavity 1122 extends from the proximal end of the catheter 112 to the distal end of the catheter 112. The balloon catheter 11 also includes a catheter seat 115, which is connected to the proximal end of the catheter 112. The catheter seat 115 includes an inflation cavity 1151 and an aspiration cavity 1152. The inflation cavity 1151 communicates with the first cavity 1121, and the aspiration cavity 1152 communicates with the second cavity 1122. The filling cavity 1151 and the first cavity 1121 are used to inflate the balloon 111. This is achieved by injecting liquid into the filling cavity 1151, allowing the liquid to flow through the first cavity 1121 and out through the filling hole 1123 into the balloon 111, thereby inflating the balloon 111. The suction cavity 1152 and the second cavity 1122 are used to aspirate gastric juice, blood, etc., from the stomach. For example, a suction pump can be installed near the proximal end of the suction cavity 1152, and then the pump can be turned on, allowing gastric juice, blood, etc., to pass through the second cavity 1122 and the suction cavity 1152 before being drawn out of the body. In the first embodiment of the present invention, the cross-sectional area of ​​the second cavity 1122 in the circumferential direction is larger than the cross-sectional area of ​​the first cavity 1121 in the circumferential direction. That is, the space of the second cavity 1122 used for suction is larger than the space of the first cavity 1121 used for filling, to ensure effective suction.

[0043] Please see Figure 1 and Figure 4The wearing component 121 includes a wearing body 1211 and a wearing part 1212. One end of the wearing part 1212 is connected to one end of the wearing body 1211, and the other end of the wearing part 1212 is connected to the other end of the wearing body 1211. The fixing component 122 is disposed on the wearing body 1211. In the first embodiment of the present invention, the wearing body 1211 is worn on the forehead, and the wearing part 1212 can be an elastic strap. In use, the wearing component 121 is completely slipped over the head.

[0044] The fixing component 122 includes a fixing body 1221, a locking member 1222, and an end cap 1223. The fixing body 1221 is disposed on the wearing body 1211, and the fixing body 1221 and the wearing body 1211 can be integrally formed. Alternatively, the fixing body 1221 and the wearing body 1211 can be manufactured separately and then connected by means of adhesive, snap-fit, magnetic attraction, sewing, etc. The fixing body 1221 protrudes in a direction away from the wearing body 1211 to form a support portion 1224. The side of the support portion 1224 is provided with a mating portion 1225 having a hollow cavity. The support portion 1224 is provided with a through hole, and the through hole communicates with the support portion 1224. The proximal end of the catheter 112 passes through the through hole, and one end of the locking member 1222 enters the mating part 1225 and abuts against the outer surface of the proximal end of the catheter 112. The end cap 1223 is connected to the mating part 1225 to house the locking member 1222. In the first embodiment of the present invention, the connection between the end cap 1223 and the mating part 1225 is a threaded connection. Rotating the end cap 1223 moves one end of the locking member 1222 towards the proximal end of the catheter 112 until one end of the locking member 1222 abuts against the proximal end of the catheter 112, thereby fixing the catheter 112 relative to the wearing device 12. In use, the distal end of the catheter 112 can be passed through the through hole, and the balloon catheter 11 can be further advanced so that the distal end of the catheter 112 advances towards the nasal cavity until the catheter 112 passes through the nasal cavity and esophagus to reach the stomach. After the balloon 111 completes the closure of the gastric bleeding, the end cap 1223 is rotated so that one end of the locking member 1222 abuts against the proximal end of the catheter 112. At this time, the catheter 112 is fixed relative to the wearing device 12, so that the balloon catheter 11 can stably have traction force to achieve the closure of the gastric bleeding. In the first embodiment of the present invention, the wearing device 12 is worn on the forehead, close to the nasal cavity, which is convenient for doctors to operate. Moreover, after the wearing device 12 is worn on the forehead, when the patient makes a certain range of head movements, the relative position of the wearing device 12 and the balloon catheter 11 can be kept unchanged as much as possible, that is, the patient is allowed to make a certain range of head movements without affecting the closure effect of the gastric bleeding. This improves the patient's user experience and reduces discomfort during treatment.

[0045] Please continue reading. Figure 4The locking member 1222 includes an elastic part 1226 and an abutting part 1227. One end of the abutting part 1227 abuts against the catheter 112, and the other end of the abutting part 1227 is connected to one end of the elastic part 1226. The other end of the elastic part 1226 abuts against the end cap 1223. In the first embodiment of the present invention, the elastic part 1226 is a spring. When the end cap 1223 is connected to the mating part 1225, the elastic part 1226 is compressed under force. The elastic part 1226 can play a buffering role, preventing the force from directly acting on the abutting part 1227 and damaging the catheter 112. At the same time, after the elastic part 1226 is compressed, it can also provide a continuous force to the abutting part 1227, thereby ensuring the traction force of the balloon catheter 11 relative to the stomach and ensuring the occlusion effect. Furthermore, a friction section 1124 is provided at the proximal end of the conduit 112, and the friction section 1124 is disposed within the support portion 1224. One end of the abutment portion 1227 abuts against the friction section 1124, and a resistance-increasing structure (not shown) is provided on the end face of the abutment portion 1227 that contacts the friction section 1124. In the first embodiment of the present invention, the friction section 1124 is a tubular structure 1126, and the friction section 1124 is sleeved on the proximal end of the conduit 112, thereby protecting the portion of the conduit 112 that contacts the abutment portion 1227, and preventing the abutment portion 1227 from directly contacting the conduit 112 and causing damage to the conduit 112. Meanwhile, the friction section 1124 has a rough outer surface, and the resistance-enhancing structure also has a rough outer surface, resulting in a large frictional force when the abutment portion 1227 contacts the friction section 1124, ensuring that the conduit 112 can be securely fixed to the fixing assembly 122. In other specific embodiments of the present invention, the friction section 1124 can be formed directly by grinding the outer surface of the conduit 112. The friction section 1124 can also be made of silicone material, and the resistance-enhancing structure can also be made of silicone material.

[0046] Please see Figure 5In the first embodiment of the present invention, since the distal end of the balloon catheter 11 extends from the forehead to the nasal cavity, it needs to bend before entering the nasal cavity. To facilitate the doctor's operation and improve the patient's comfort, a bend 1125 is provided on the catheter 112 in the proximal direction of the balloon 111. The bend 1125 makes it easier to bend, so that the proximal and distal ends of the catheter 112 form the required angle. The bend 1125 reduces the rebound force generated after the catheter 112 bends and deforms, avoiding damage to the nasal cavity caused by the rebound force. Specifically, the bend 1125 includes multiple tubular structures 1126 and inclined structures 1127. The tubular structure 1126 and the inclined structure 1127 are alternately arranged, that is, one tubular structure 1126 is connected to one inclined structure 1127, and this inclined structure 1127 is connected to another tubular structure 1126, and so on. The arrangement of the tubular structure 1126 and the inclined structure 1127 allows the bending portion 1125 to bend at a large angle. Simultaneously, the bending portion 1125 not only has an axial compression function but also a shaping function. The bending portion 1125 can be manually bent and shaped. Doctors can adapt the bending portion 1125 by stretching, compressing, or bending it according to the angle required by different patients. The bending portion 1125 can be maintained at a bending angle to further reduce the rebound force generated after the catheter 112 is bent and deformed. In other specific embodiments of the present invention, the tubular structure 1126 may be omitted, and multiple inclined structures 1127 are interconnected to form the bending portion 1125.

[0047] Please combine Figure 5 and Figure 6 To ensure the delivery performance of the catheter 112 and prevent the bend 1125 from being too soft to push the catheter 112 to the lesion site, the balloon catheter 11 further includes a support member 116, which is fitted onto the bend 1125. In the first embodiment of the present invention, the support member is a PET heat-shrink film, which is heat-shrinked and fitted onto the bend 1125. In use, when the catheter 112 is roughly pushed to the target position, the doctor can tear open the support member 116, remove the support member 116 from the bend 1125, and then bend the bend 1125 again. In other specific embodiments of the present invention, the support member 116 can be a tearable film made of other polymer materials, such as polypropylene.

[0048] Please see Figure 7 and Figure 8The second embodiment of the present invention provides an occlusion balloon device 2, which includes the balloon catheter 11 of the first embodiment. The parts identical to those of the occlusion balloon device 2 of the second embodiment are not described again here. The main difference between the occlusion balloon device 2 and the occlusion balloon device 2 of the first embodiment lies in the wearing device 22. The occlusion balloon device includes a wearing device 22, which includes a wearing component 221 and a fixing component 222. The wearing component 221 includes a wearing body 2211 and a wearing part 2212. One end of the wearing part 2212 is connected to one end of the wearing body 2211, and the other end of the wearing part 2212 is connected to the other end of the wearing body 2211. The fixing component 222 is disposed on the wearing body 2211. Specifically, the wearing body 2211 includes a protective cover 2213 and a connecting cover 2214. The proximal end of the protective cover 2213 is connected to the connecting cover 2214. That is, the connecting cover 2214 can be considered as extending from the proximal end face of the protective cover 2213 in a direction away from the protective cover and at approximately a 90-degree angle to it. The cross-sectional structure of the wearing body 2211 along its length centerline is approximately L-shaped. Figure 9 As shown in the diagram, specifically in the cross-sectional view along direction B-B, the wearing body 2211 is approximately L-shaped. One end of the wearing part 2212 is connected to one side of the protective cover 2213, and the other end of the wearing part 2212 is connected to the other side of the protective cover 2213. The distal end of the catheter passes through the connecting cover 2214 and then through the protective cover 2213. In the second embodiment of the invention, the protective cover 2213 is worn on the bridge of the nose, and therefore is arc-shaped to fit the shape of the bridge of the nose. The connecting cover 2214 is located below the nose when worn, and is L-shaped with the protective cover 2213 to fit the shape of the nose. The distal end of the balloon catheter 21 passes through the connecting cover 2214 from the side away from the protective cover 2213, and then directly enters the nasal cavity. Therefore, the balloon catheter 21 in the second embodiment of the present invention can omit the bending portion of the first embodiment, reducing the manufacturing cost and difficulty of the balloon catheter 21. Simultaneously, the wearing component 221 is worn on the nose, preventing the occlusion balloon device 2 from obstructing the patient's vision, thus providing a better experience. The wearing component 221, worn on the nose, ensures that the relative position of the wearing device 22 and the balloon catheter 21 remains unchanged when the patient makes a certain range of head movements, maximizing the patient's head movement and even allowing for some physical activity, without affecting the occlusion effect on gastric bleeding. This improves the patient's user experience, reduces discomfort during treatment, and facilitates doctor's operation.

[0049] Please see Figure 7 , Figure 8 and Figure 10 The fixing component 222 includes a fixing body 2221, a locking member 2222, and an end cap 2223. The connecting cover 2214 has a through portion 2215 penetrating its inner and outer surfaces. The fixing body 2221 is located on the side of the connecting cover 2214 away from the protective cover 2213. The locking member 2222 is located at the end of the fixing body 2221 away from the connecting cover 2214, and the end cap 2223 is located at the end of the locking member 2222 away from the fixing body 2221. The distal end of the balloon catheter 21 passes sequentially through the end cap 2223, the locking member 2222, the fixing body 2221, and the through portion 2215. In the second embodiment of the present invention, the size of the fixing body 2221 is larger than the size of the through portion 2215, so that the fixing body 2221 will not pass through the through portion 2215. The fixing body 2221 can play a limiting role, ensuring that the fixing component 222 is located on the same side of the connecting cover 2214, ensuring that the fixing component 222 is convenient to use and has a good fixing effect on the catheter. Further, the locking member 2222 is made of silicone material, and the end cap 2223 is threaded to the proximal end of the fixing body 2221. After the end cap 2223 is connected to the fixing body 2221, the end cap 2223 and the fixing body 2221 jointly compress the locking member 2222. After the locking member 2222 deforms, the inner wall of the locking member 2222 is in close contact with the outer surface of the catheter, thereby fixing the catheter. In use, after the balloon reaches the predetermined position, the end cap 2223 can be rotated to lock the catheter with the locking member 2222, thereby fixing the balloon catheter 21 onto the wearing assembly 221. At least one ventilation hole 2216 is also provided on the connecting cover 2214 to ensure that the patient can breathe smoothly after wearing the wearing assembly 221.

[0050] Please see Figure 11 and Figure 12The third embodiment of the present invention provides an occlusion balloon device 3. The balloon catheter 31 of the occlusion balloon device 3 is the same as the balloon catheter 21 of the second embodiment, and will not be described again here. The main difference between the occlusion balloon device 3 and the occlusion balloon device 2 of the second embodiment of the present invention is the wearing device 32. Specifically, the wearing assembly 321 further includes a stabilizing part 3213. One end of the stabilizing part 3213 is connected to the end of the wearing body 3211 and the wearing part 3212 that are connected together, and the other end of the stabilizing part 3213 is connected to the other end of the wearing body 3211 and the wearing part 3212 that are connected together. That is, one end of the stabilizing part 3213, the wearing body 3211, and the wearing part 3212 are connected to each other, and the other end is also connected to each other. The stabilizing part 3213, the wearing assembly 321, and the wearing part 3212 can rotate relative to each other around the part that can be connected to each other. In the third embodiment of the present invention, the wearing device 32 is worn on the head. During use, the stabilizing part 3213, the wearing component 321, and the wearing part 3212 can rotate relative to each other. The side of the wearing body 3211 away from the stabilizing part 3213 is worn on the chin, the side of the wearing part 3212 away from the wearing body 3211 is worn on the top of the head, and the side of the stabilizing part 3213 away from the wearing body 3211 is worn on the back of the head. This wearing method ensures that the wearing device 32 is securely worn on the head, avoiding the risk of the wearing device 32 falling off.

[0051] Furthermore, the outer surface of the wearing body 3211 protrudes outward to form a mounting portion 3214. The fixing component 322 includes a fixing body 3221, a locking member 3222, and a buffer member 3223. The fixing body 3221 is fixed to the mounting portion 3214, thereby connecting the fixing component 322 and the wearing component 321. The locking member 3222 and the buffer member 3223 are housed within the fixing body 3221. The distal end of the conduit enters the fixing body 3221 from one end, passes through the locking member 3222 and the buffer member 3223, and exits from the other end of the fixing body 3221. In the third embodiment of the present invention, there are two buffer members 3223, and the locking member 3222 is disposed between the two buffer members 3223. The buffer 3223 is a spring structure, and the locking member 3222 is made of silicone material. The locking member 3222 has a large frictional force with the outer surface of the catheter. In use, after the balloon reaches the predetermined position, a force can be applied to the fixing body 3221, making the force applied to the fixing body 3221 greater than the frictional force between the locking member 3222 and the catheter, thereby causing the fixing component 322 to slide on the catheter. When the fixing component 322 slides to a position corresponding to the mounting part 3214, the fixing body 3221 can be connected to the mounting part 3214, thereby fixing the fixing component 322 to the wearing component 321. At this time, because the locking member 3222 has a large frictional force with the catheter, and this frictional force is greater than the traction force required for balloon occlusion. Therefore, the catheter will be locked by the locking member 3222 to prevent the balloon catheter 31 from moving distally due to the reaction force of the traction force during occlusion, thereby ensuring the occlusion effect of the balloon. It should be noted that the two buffer members 3223 are installed inside the fixing body 3221 after being compressed to a certain extent, and the buffer members 3223 are positioned between the two compressed buffer members 3223. Since the locking member 3222 is positioned between the two buffer members 3223, when the patient performs a certain range of motion, the balloon catheter 31 and the locking member 3222 will compress one of the buffer members 3223, while the other buffer member 3223 will return to its original state. This allows the displacement of the balloon catheter 31 to be buffered by the buffer member 3223, preventing the force from directly acting on the balloon catheter 31 and causing strong stimulation to the patient.Meanwhile, the two buffers 3223 are installed inside the fixed body 3221 after being compressed to a certain extent, which can also ensure that the balloon catheter 31 can be automatically reset. After a certain range of movement, the balloon catheter 31 will automatically reset to its initial position, always ensuring that the balloon is in close contact with the target position, and avoiding the situation where the balloon catheter 31 is displaced after the patient performs certain activities, and the balloon no longer acts on the target position and cannot be blocked.

[0052] Please see Figure 13 The fourth embodiment of the present invention provides an occlusion balloon device 4. The balloon catheter 41 of the occlusion balloon device 4 is the same as that of the balloon catheters in embodiments two and three, and will not be described again here. The main difference between the occlusion balloon device 4 and the occlusion balloon device 4 provided in the above embodiments is that the structure of the wearing device 42 is different, and the wearing device 42 also includes a tightening component 422. In the fourth embodiment of the present invention, the wearing device 42 is worn on the shoulder. Specifically, the wearing component 421 includes a wearing body 4211 and two wearing parts 4212. The wearing body 4211 has a ring structure, so that the wearing body 4211 can be put on the patient. The wearing parts 4212 have a band structure. One end of the two wearing parts 4212 is connected to one side of the wearing body 4211, and the other end is connected to the other side of the wearing body 4211. The two wearing parts 4212 are evenly spaced on the wearing body 4211. The two wearing parts 4212 are respectively worn on the patient's left and right shoulders, thereby wearing the entire wearing device 42 on the patient's body. In other specific embodiments of the present invention, the number of wearing parts 4212 can also be four, with two wearing parts 4212 disposed on one side of the wearing body 4211 and two wearing parts 4212 disposed on the other side of the wearing body 4211. The number of wearing parts 4212 can be adaptively set according to actual needs. The wearing body 4211 can also be other shapes, such as a semi-ring shape. Further, the wearing assembly 421 also includes a fixing member 4213, which includes a fixing strap 4214 and a support part 4215. One end of the fixing strap 4214 is connected to one wearing part 4212, and the other end is connected to another wearing part 4212. The support part 4215 is disposed on the fixing strap 4214, and the elastic component 422 is fixed to the support part 4215. In the fourth embodiment of the present invention, the support portion 4215 is located at the middle position in the length direction of the fixing strap 4214, thereby fixing the elastic component 422 at the middle position of the wearing component 421, so that after the wearing device 42 is worn on the patient, the balloon catheter 41 is aligned as much as possible with the patient's nose.

[0053] Please see Figure 13 - Figure 15The tensioning assembly 422 includes a coiled component 4221 and a connecting component 4222. The coiled component 4221 has a disc structure, and its side surface is recessed inward to form a groove 4223. One end of the connecting component 4222, away from the balloon catheter 41, is coiled around the groove 4223, and the other end of the connecting component 4222 is connected to the proximal end of the balloon catheter 41, thereby achieving the connection between the tensioning assembly 422 and the balloon catheter 41. The groove 4223 ensures that the proximal end of the connecting component 4222 is always coiled along the side surface of the coiled component 4221, preventing the proximal end of the connecting component 4222 from coiling around the end face of the coiled component 4221. The tensioning assembly 422 also includes a pin 4224, a torsion spring 4220, and a housing 4225. The coiled member 4221, the pin 4224, the torsion spring 4220, and the end of the connector 4222 away from the balloon catheter 41 are all housed within the housing 4225. After being wound, the torsion spring 4220 has one end at its center and the other end at its outermost edge. That is, the torsion spring 4220 is a strip-shaped structure, and it is wound from one end as the center point to the other end, thus forming a structure in which one end is a free end 4261 and the other end is a center end 4262. The pin 4224 has a through groove 4240 extending through it. The through groove 4240 is formed by a portion of one end of the pin 4224 recessed towards the other end. The pin 4224 is located at the center of the coiled member 4221. One end of the pin 4224 with the through groove 4240 protrudes outside the coiled member 4221. The center end 4262 of the torsion spring 4220 is inserted into the through groove 4240, and the free end 4261 of the torsion spring 4220 is connected to the coiled member 4221. The coiled member 4221 can rotate around the pin 4224. The rotation of the coiled member 4221 can cause the proximal end of the connector 4222 to gradually coil around the groove 4223, or move the proximal end of the connector 4222 coiled in the groove 4223 towards the balloon catheter 41. Meanwhile, the movement of the coiled member 4221 will cause the torsion spring 4220 to deform. The movement of the connector 4222 will then drive the balloon catheter 41 to move. In use, when the balloon catheter 41 is in the ideal position, the distal end of the connector 4222 is connected to the proximal end of the balloon catheter 41. The connector 4222 can tighten the balloon catheter 41, providing a stable traction force to the balloon catheter 41.If the patient's movement causes the balloon catheter 41 to move distally, the connector 4222 can also move distally under the influence of the balloon catheter 41. The movement of the connector 4222 causes the coiled component 4221 to rotate, thereby moving the connector 4222 coiled on the coiled component 4221 distally, ensuring that the connector 4222 can move with the balloon catheter 41. The rotation of the coiled component 4221 will cause the torsion spring 4220 to deform, at which point the torsion spring 4220 has a force to return to its original shape. The force of the torsion spring 4220 returning to its original shape will cause the coiled component 4221 to tend to return to its original position. This tendency of the coiled component 4221 to return to its original position will provide a traction force for the connector 4222 to move proximally, and this traction force will be transmitted to the balloon catheter 41 through the connector 4222, so that the balloon catheter 41 has a continuous traction force towards proximity. This ensures that the balloon catheter 41 remains taut throughout the patient's activity, guaranteeing its occlusion effect. As the patient's activity ends and the balloon catheter 41 returns to its initial position, the torsion spring 4220 returns to its original shape, causing the coiled component 4221 to move. The rotation of the coiled component 4221 causes the proximal end of the connector 4222 to coil within the groove 4223. The connector 4222 moves proximally to reset, further moving the balloon catheter 41 proximally, ensuring that the balloon catheter 41 remains in contact with and occludes the gastric fundus throughout the entire repositioning process. Therefore, the fourth embodiment of the present invention, by providing the tensioning component 422, allows the patient to perform a certain range of movements. Simultaneously, the tensioning device can adaptively adjust its tightness during the patient's activity, ensuring the occlusion effect of the balloon catheter 41.

[0054] Please see Figure 14 - Figure 16The pin 4224 includes a cylindrical pivot portion 4226 and a mating portion 4227. A through hole penetrating the inner and outer surfaces of the coiled member 4221 is provided on its central shaft. The pivot portion 4226 is inserted into the through hole, allowing the coiled member 4221 to rotate around the pivot portion 4226. The mating portion 4227 is exposed outside the coiled member 4221. A through groove 4240 is provided on the mating portion 4227. After the central end 4262 of the torsion spring 4220 engages with the through groove 4240, the end of the mating portion 4227 away from the pivot portion 4226 can be fixed to the inner wall of the housing 4225. The diameter of the pivot portion 4226 is smaller than the size of the through hole to ensure that the pivot portion 4226 can enter the through hole, and that the coiled member 4221 can rotate around the pivot portion 4226 as an axis. The diameter of the mating part 4227 is larger than the diameter of the rotating shaft part 4226 and the through hole, so as to ensure that the mating part 4227 will not enter the through hole, thereby preventing the torsion spring 4220 from getting caught between the rotating shaft part 4226 and the through hole during deformation.

[0055] Please see Figure 15 - Figure 17 In the fourth embodiment of the present invention, the pressure exerted by the balloon catheter 41 on the gastric fundus can be manually adjusted by setting a rotating component 4228, a first locking tooth 4229, and a control component 4230. For example, when the patient feels too much pressure, the tensioning component 422 can be manually adjusted to relax the balloon catheter 41 and reduce the pressure of the balloon on the gastric fundus, thereby relieving the patient's discomfort. Specifically, the rotating component 4228 is located on the side of the coiled component 4221 away from the pin 4224, that is, the pin 4224 and the torsion spring 4220 are located on one side of the coiled component 4221, and the rotating component 4228 is located on the other side of the coiled component 4221. One end of the rotating component 4228 is connected to the coiled component 4221, and the other end passes through the housing 4225 and protrudes outside the housing 4225. The doctor can rotate the rotating component 4228 exposed outside the housing 4225, causing the rotating component 4228 to rotate, which in turn drives the coiled component 4221 to rotate. Further, the coiled component 4221 has first locking teeth 4229 evenly arranged circumferentially on its side. The tensioning assembly 422 also includes a control component 4230, which includes a control component body 4231, a connecting rod 4232, and a lever 4233. Please refer to... Figure 15 and Figure 16The control component body 4231 has a second locking tooth 4234 and a third locking tooth 4235 on one side, with the second locking tooth 4234 and the third locking tooth 4235 spaced apart. The control component body 4231 is disposed inside the housing 4225. One end of the connecting rod 4232 is connected to the control component body 4231, and the other end passes through the housing 4225 and is connected to the lever 4233. Rotating the lever 4233 causes the second locking tooth 4234 or the third locking tooth 4235 to engage with the first locking tooth 4229. The control component body 4231 has an inclined structure 4236 on the side away from the second locking tooth 4234 and the third locking tooth 4235. The tensioning component 422 also includes an elastic element 4241 and an abutment element 4242. The housing 4225 has a receiving groove 4251. One end of the elastic element 4241 abuts against the inner wall of the receiving groove 4251, and the other end is connected to the abutment element 4242. The inclined structure 4236 extends into the receiving groove 4251, and the abutment element 4242 abuts against the inclined structure 4236.

[0056] Please combine Figure 17 and Figure 18The abutment 4242 has a spherical structure, and the elastic element 4241 is pre-compressed during installation before being placed in the receiving groove 4251. When the first locking tooth 4229 engages with the second locking tooth 4234, the elastic element 4241, due to its pre-compression, continuously provides force to the abutment 4242. At this time, the abutment 4242 abuts against the side of the inclined structure 4236 near the third locking tooth 4235, thereby ensuring a stable engagement between the first locking tooth 4229 and the second locking tooth 4234. Simultaneously, the side of the inclined structure 4236 near the second locking tooth 4234 abuts against the inner wall of the receiving groove 4251. Therefore, the control body 4231 can no longer rotate towards the second locking tooth 4234. Therefore, the coiled member 4221 cannot rotate in the direction of the third locking tooth 4235, i.e., clockwise as shown in the figure. At this time, the connecting member 4222 cannot move in the distal direction, i.e., it cannot relax the pressure of the balloon catheter 41 on the gastric fundus. However, the coiled member 4221 can still rotate counterclockwise as shown in the figure. When the coiled member 4221 rotates counterclockwise, the counterclockwise rotation of the first locking tooth 4229 will drive the control member body 4231 to rotate clockwise, and the first locking tooth 4229 will gradually lose engagement with the second locking tooth 4234. At this time, due to the rotation of the control member body 4231, the abutment member 4242 slides on the inclined structure 4236, i.e., the inclined structure 4236 will push the abutment member 4242 towards the elastic member 4241. The abutment 4242 moves toward the elastic member 4241, thereby compressing the elastic member 4241 to accommodate the rotation of the control body 4231. After the first locking tooth 4229 loses engagement with the second locking tooth 4234, the coiled member 4221 continues to rotate counterclockwise as shown in the figure. The first locking tooth 4229 will re-engage with the second locking tooth 4234. At this time, the elastic member 4241 returns to its original state, thereby driving the abutment 4242 to move toward the inclined structure 4236. The movement of the abutment 4242 toward the inclined structure 4236 will push the inclined structure 4236 to swing counterclockwise as shown in the figure, thereby causing the second locking tooth 4234 to move toward the first locking tooth 4229, thus re-engaging the first locking tooth 4229 with the second locking tooth 4234. Therefore, when the first locking tooth 4229 engages with the second locking tooth 4234, the coiled member 4221 cannot rotate clockwise as shown in the figure, but can only rotate counterclockwise as shown in the figure. That is, at this time, it can only drive the connecting member 4222 to move proximally, thereby tightening the balloon catheter 41 and increasing the pressure of the balloon catheter 41 on the gastric fundus.

[0057] During use, if the doctor observes that the balloon catheter 41 does not provide sufficient pressure on the gastric fundus and its occlusion effect is poor, the balloon catheter 41 needs to be moved proximally to increase pressure on the gastric fundus. The doctor can then move the lever 4233, thereby engaging the second locking tooth 4234 with the first locking tooth 4229 (e.g., Figure 17 (As shown). Then, rotate the rotating component 4228 counterclockwise as shown in the diagram. The rotation of the rotating component 4228 will drive the rotation of the coiling component 4221. The rotation of the coiling component 4221 causes the torsion spring 4220 to deform, and drives the proximal side and near-proximal side of the connecting component 4222 to coil around the coiling component 4221, thereby driving the balloon catheter 41 to move proximally. Once the balloon catheter 41 is in the correct position, stop rotating the rotating component 4228 and begin treatment (it should be noted that after the rotating component 4228 stops rotating, the balloon catheter 41 maintains continuous pressure on the gastric fundus, thereby blocking the bleeding site of the gastric fundus blood vessels and achieving a therapeutic effect. Treatment is completed after a certain period of occlusion). After treatment, move the lever 4233 to disengage the first locking tooth 4229 from the second locking tooth 4234 (e.g., Figure 18 As shown in the figure, at this time, the torsion spring 4220 returns to its original state, causing the coiled part 4221 to rotate clockwise to reset, thereby causing the connector 4222 and the balloon catheter 41 to reset.

[0058] Similarly, such as Figure 18 As shown, when the coiling member 4221 needs to rotate only clockwise and cannot rotate counterclockwise, and the balloon catheter 41 needs to move distally, the lever 4233 can be moved to engage the third locking tooth 4235 with the first locking tooth 4229. At this time, the balloon catheter 41 can only move distally, meaning only the balloon catheter 41 can be relaxed, reducing pressure on the gastric fundus. During use, if the patient feels severe discomfort, the lever 4233 can be moved to engage the third locking tooth 4235 with the first locking tooth 4229, and then the rotating member 4228 can be rotated clockwise as shown in the figure. This will cause the coiling member 4221 to rotate clockwise as shown in the figure, allowing the balloon catheter 41 to move distally, relaxing the balloon catheter 41, and reducing pressure on the gastric fundus.

[0059] Compared with existing technologies, the occlusion balloon device of the present invention has the following advantages: The embodiments of the present invention employ a wearable device to fix the balloon catheter to the patient through wearing, providing continuous and stable traction force to the balloon catheter, eliminating concerns about balloon displacement and ensuring the hemostatic effect of the balloon. Therefore, only one balloon catheter needs to be installed in the gastric fundus, meaning no balloon is needed in the esophagus, thus reducing patient discomfort. Simultaneously, since the balloon catheter is worn on the patient through the wearable device, the patient is not restricted by the bed, allowing for some mobility, such as moving limbs, adjusting body posture, and even getting out of bed to perform a series of activities. This greatly reduces patient suffering and also facilitates operation by doctors.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A balloon occlusion device for applying pressure to stop bleeding from blood vessels in the gastric fundus, characterized in that: The occlusion balloon device includes a balloon catheter and a wearing device. The balloon catheter includes a balloon and a catheter. The balloon is disposed on the distal end of the catheter. The wearing device includes a wearing component and a fixing component. The fixing component is connected to the wearing component, and the catheter is fixed to the wearing component through the fixing component.

2. The occlusion balloon device as described in claim 1, characterized in that: The catheter on the proximal side of the balloon is provided with a bend, which is flexible enough to create an angle between the proximal and distal ends of the catheter. The bend includes multiple tubular structures and inclined structures, which are alternately connected. The balloon catheter also includes a support member, which is sleeved on the bend.

3. The occlusion balloon device as described in claim 1, characterized in that: The catheter is provided with a first cavity and a second cavity arranged side by side along the axial direction of the catheter, with the first cavity and the second cavity spaced apart. The catheter inside the balloon is provided with an filling hole penetrating the inner and outer surfaces of the catheter. The first cavity extends from the proximal end of the catheter to the filling hole, and the second cavity extends from the proximal end of the catheter to the distal end of the catheter.

4. The occlusion balloon device as described in claim 3, characterized in that: The balloon catheter also includes a catheter seat, which is connected to the proximal end of the catheter. The catheter seat includes an filling chamber and an aspiration chamber. The filling chamber is connected to the first cavity, and the aspiration chamber is connected to the second cavity. The cross-sectional area of ​​the second cavity in the circumferential direction is larger than that of the first cavity in the circumferential direction.

5. The occlusion balloon device as described in claim 1, characterized in that: The wearing component includes a wearing body and a wearing part. One end of the wearing part is connected to one end of the wearing body, and the other end of the wearing part is connected to the other end of the wearing body. The fixing component is disposed on the wearing body.

6. The occlusion balloon device as described in claim 5, characterized in that: The fixing component includes a fixing body, a locking member, and an end cap. The fixing body is disposed on the wearing body and protrudes in a direction away from the wearing body to form a support portion. The side of the support portion is provided with a mating portion having a hollow cavity. The support portion is provided with a through hole, which communicates with the mating portion. The conduit passes through the through hole, such that the proximal end and distal end of the conduit are located on both sides of the support portion. One end of the locking member enters into the mating portion and abuts against the outer surface of the conduit. The end cap is connected to the mating portion, thereby allowing the locking member to be housed within the mating portion.

7. The occlusion balloon device as described in claim 6, characterized in that: The locking member includes an elastic part and an abutting part. One end of the abutting part is used to abut against the conduit, and the other end of the abutting part is connected to one end of the elastic part. The other end of the elastic part abuts against the end cap. A friction section is provided at the proximal end of the conduit. The friction section is located in the support part. One end of the abutting part abuts against the friction section, and a resistance-increasing structure is provided on the end face of the abutting part that contacts the friction section.

8. The occlusion balloon device as described in claim 5, characterized in that: The wearing body includes a protective cover and a connecting cover. The proximal end of the protective cover is connected to the connecting cover. The cross-sectional structure of the wearing body along the center line of the length direction is L-shaped. One end of the wearing part is connected to one side of the protective cover, and the other end of the wearing part is connected to the other side of the protective cover. The distal end of the conduit passes through the connecting cover and then through the protective cover.

9. The occlusion balloon device as described in claim 8, characterized in that: The fixing assembly includes a fixing body, a locking member, and an end cap. The connecting cover is provided with a through portion that penetrates the inner and outer surfaces of the connecting cover. The fixing body is located on the side of the connecting cover away from the protective cover. The locking member is located at the end of the fixing body away from the connecting cover. The end cap is located at the end of the locking member away from the fixing body. The distal end of the conduit can pass through the end cap, the locking member, the fixing body, and the through portion in sequence.

10. The occlusion balloon device as described in claim 5, characterized in that: The wearing assembly further includes a stabilizing part, one end of which is connected to the end of the wearing body and the wearing part, and the other end of which is connected to the other end of the wearing body and the wearing part. The stabilizing part, the wearing assembly, and the wearing part are rotatable relative to each other.

11. The occlusion balloon device as described in claim 10, characterized in that: The outer surface of the wearable body protrudes outward to form a support portion. The fixing component includes a fixing body, a locking member, and a buffer member. The fixing body is fixed to the support portion. The locking member and the buffer member are housed within the fixing body. The distal end of the conduit enters the fixing body from one end, passes through the locking member and the buffer member, and exits from the other end of the fixing body.

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