Intragastric weight losing device for releasing balloon by using transparent cap of endoscope

Abstract

The invention discloses an intragastric weight losing device for releasing a balloon by using an endoscope transparent cap. The intragastric weight losing device comprises the endoscope transparent cap and a balloon component, the endoscope transparent cap comprises an endoscope joint, a sliding sleeve, a guide pipe and a driving part; the endoscope connector is used for being connected with the far end of an endoscope in a sleeved mode, a sliding ring in the sliding sleeve is arranged on the endoscope connector in a sleeved mode, and the balloon component is compressed outside the endoscope connector and inside the sliding sleeve. The guide tube is arranged on the outer wall of the endoscope; the driving part is arranged at the near end of the endoscope; a self-closed medium interface in the balloon component is communicated with a medium interface of the driving component through a guide tube; the sliding ring is connected with the driving part through the first driving tendon; the driving component can drive the sliding ring to move towards the near end by pulling the first driving tendon so as to expose the balloon component, and can drive the sliding ring to move towards the far end by pushing the first driving tendon so as to push away from the balloon component; and the balloon part can expand after a medium is introduced into the balloon part. When the device is applied, esophageal mucosa is not prone to being damaged, and the safety of balloon implantation operation can be improved to a large extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a gastric weight loss device for releasing a balloon by using an endoscope transparent cap. BACKGROUND

[0002] In the field of digestion, gastric balloon implantation is often used for obesity treatment. As a minimally invasive method, the balloon is introduced into the stomach cavity, and the balloon is filled to occupy part of the space in the stomach, so as to reduce the food intake of the patient and achieve the purpose of weight loss.

[0003] At present, the mainstream way of gastric balloon implantation is endoscopic implantation, that is, balloon implantation based on endoscopic operation. Specifically, an endoscope transparent cap is used for auxiliary positioning, a guide wire is sent into a preset position through an endoscope, the endoscope is then withdrawn, the guide wire and the balloon are connected, and the catheter of the balloon is installed outside the endoscope and extends to the outside of the patient's body. Then, the balloon is sent into the preset position by using the endoscope under the guidance of the guide wire. Then, physiological saline or other medium is injected into the balloon through the catheter to make the balloon expand. Finally, the balloon is released by pulling the catheter. In this way, the balloon is in a loose state during transportation, has a large volume, and needs to be repeatedly operated on the endoscope, which is easy to damage the esophageal mucosa and has low operation safety.

[0004] Therefore, how to provide a scheme to overcome or alleviate the above-mentioned defects is still a technical problem to be solved by those skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide a gastric weight loss device for releasing a balloon by using an endoscope transparent cap, which is not easy to damage the esophageal mucosa and can greatly improve the safety of balloon implantation operation.

[0006] To solve the above technical problems, the present application provides a gastric weight loss device for releasing a balloon by using an endoscope transparent cap, which comprises an endoscope transparent cap and a balloon component; the endoscope transparent cap comprises an endoscope joint, a sliding sleeve, a guide tube and a driving component;

[0007] The sliding sleeve comprises a sliding ring, the endoscope joint is used for sleeving the distal end of the endoscope, the sliding ring is sleeved on the endoscope joint, and the balloon component is compressed on the outside of the endoscope joint and the inside of the sliding sleeve;

[0008] The guide tube is arranged on the peripheral wall of the endoscope, and the driving component is arranged on the proximal end of the endoscope; the balloon component has a self-sealing first medium interface, the guide tube has a first medium channel, and the driving component has a second medium interface; the first medium interface is in communication with the second medium interface through the first medium channel;

[0009] The sliding ring is in transmission connection with the driving component through the first driving tendon; the driving component is configured to drive the sliding ring to move proximally to expose the balloon component by pulling the first driving tendon, and to drive the sliding ring to move distally to push away the balloon component by pushing the first driving tendon; the balloon component is configured to be inflatable after being inserted into a medium.

[0010] Optionally, the sliding sleeve further comprises a fixing ring and a connecting ring;

[0011] The fixing ring and the connecting ring are both sleeved on the inner mirror joint, the proximal end of the sliding ring is connected with the connecting ring and the fixing ring, and the fixing ring is fixed on the inner mirror joint;

[0012] The distal end of the first driving tendon is connected with the proximal end of the sliding ring and located outside the connecting ring, and the connecting ring and the sliding ring are both made of flexible material; a containing cavity is formed between the inner side of the sliding ring, the inner side of at least part of the connecting ring and the outer side of the inner mirror joint, and the compressed balloon component is located in the containing cavity;

[0013] When the sliding ring moves proximally, the connecting ring can be driven to move proximally and be sleeved on the outer peripheral wall of the fixing ring with the sliding ring, so as to expose the balloon component.

[0014] Optionally, the gastric weight loss device for releasing a balloon by using an endoscope transparent cap further comprises a transmission ring and two or more second driving tendons;

[0015] The transmission ring and the sliding ring are coaxially arranged, the two or more second driving tendons are uniformly and spacedly distributed along the circumference of the sliding ring, the proximal end of the sliding ring is connected with the distal end of the transmission ring through the two or more second driving tendons, and the distal end of the first driving tendon is fixed to the proximal end of the transmission ring;

[0016] The outer side wall of the guide pipe is provided with a limiting groove penetrating in the width direction, and the transmission ring is at least partially located in the limiting groove;

[0017] During the movement of the first driving tendon proximally or distally, the transmission ring can abut against the two side wall surfaces of the limiting groove, respectively.

[0018] Optionally, the inner mirror joint comprises a joint body; the outer peripheral wall of the joint body is provided with a second annular step, the second annular step has a second step surface facing the distal end; the fixing ring is sleeved on the outer peripheral wall corresponding to the second annular step and abuts against the second step surface at the proximal end face, and the sliding ring can abut against the second step surface at the proximal end face during the proximal movement of the sliding ring; and / or,

[0019] The inner mirror joint comprises a joint body; an outer peripheral wall of the joint body is provided with a second annular step, the second annular step has a second step surface facing the distal end; an outer lateral wall of the guide pipe is provided with a first path groove penetrating in the length direction, the outer peripheral wall of the joint body is provided with two or more second path grooves penetrating in the axial direction on the side of the second step surface close to the proximal end, the distal end surface of the guide pipe abuts against the proximal end surface of the joint body, one of the second path grooves and the first path groove are in communication; the distal end of the second driving tendon is fixed to the proximal end surface of the sliding ring, each second driving tendon is respectively clamped in each second path groove, the first driving tendon and one of the second driving tendons are respectively clamped in the first path groove; and / or,

[0020] The driving component comprises a driving handle and a push-pull rod; the push-pull rod is slidingly arranged in the driving handle, the proximal end of the first driving tendon is connected with the push-pull rod, and pulling or pushing the push-pull rod can pull or push the first driving tendon.

[0021] Optionally, the sliding sleeve further comprises a stop portion;

[0022] The stop portion is arranged at the distal end of the sliding ring, the proximal end surface of the stop portion abuts against the distal end surface of the inner mirror joint, and the stop portion is made of flexible material;

[0023] When the sliding ring moves towards the proximal end, the stop portion can be driven to move away from the distal end surface of the inner mirror joint.

[0024] Optionally, the stop portion comprises a plurality of stop pieces; the stop pieces are fan ring-shaped, the plurality of stop pieces are distributed in the circumferential direction of the sliding ring and share a common center; and / or,

[0025] The proximal end surface of the stop portion and the distal end surface of the inner mirror joint are connected through a plurality of fixed points; the fixed points are configured to be broken when the pulling force borne by the stop portion exceeds a preset pulling force threshold, so that the stop portion moves away from the distal end surface of the inner mirror joint.

[0026] Optionally, the balloon component comprises a balloon, a liquid balloon and a stent connected in sequence along a first direction;

[0027] The balloon and the liquid balloon both have the first medium interface, the first medium channel and the second medium interface are both two, the two first medium interfaces are connected through the two first medium channels and the two second medium interfaces; the stent is made of memory alloy material and has a food channel extending along the first direction.

[0028] Optionally, the inner mirror joint comprises a joint body and two third medium interfaces;

[0029] The outer peripheral wall of the joint body is provided with a first annular step having a first step surface facing the distal end, two third medium interfaces are arranged on the first step surface, and the joint body is provided with two second medium channels on the side of the first step surface close to the proximal end;

[0030] The compressed balloon component is located on the side of the first step surface close to the distal end, the inlet ends of the two third medium interfaces respectively communicate with the two second medium channels, and the outlet ends respectively communicate with the two first medium interfaces, the distal end face of the guide tube abuts against the proximal end face of the joint body, and the two second medium channels respectively communicate with the two first medium channels.

[0031] Optionally, the balloon component further comprises a connecting member, and the inner mirror joint further comprises a constraint column;

[0032] The gas bag and the liquid bag are connected through the connecting member, the constraint column is arranged on the first step surface and extends along the axial direction of the joint body, and the connecting member is made of a flexible material;

[0033] The compressed balloon component is arranged around the circumference of the joint body, the connecting member is constrained on the inner side of the constraint column, and the two third medium interfaces are respectively located on the two sides of the constraint column in the circumferential direction of the joint body.

[0034] Optionally, the outer peripheral wall of the stent is provided with a plurality of fixed spines, and the plurality of fixed spines are arranged in the first direction at intervals; and / or,

[0035] An end of the liquid bag close to the stent is provided with a plurality of openings, the plurality of openings are distributed at intervals in the circumferential direction of the liquid bag, and the openings communicate with the food channel; and / or,

[0036] The outer wall of at least one of the gas bag and the liquid bag is provided with a plurality of placement grooves, and the placement grooves store slow-release drugs.

[0037] The gastric weight loss device provided by the application is provided with an endoscope transparent cap and a balloon component. The endoscope transparent cap comprises an endoscope joint, a sliding sleeve, a guide tube and a driving component. The endoscope joint is sleeved on the distal end of the endoscope. The sliding ring in the sliding sleeve is sleeved on the endoscope joint. The balloon component is compressed on the outside of the endoscope joint and the inside of the sliding sleeve, so that the balloon component is stored in the endoscope transparent cap in a compressed state and has a small volume during transportation. Meanwhile, the guide tube is arranged on the peripheral wall of the endoscope, and the driving component is arranged on the proximal end of the endoscope. The self-sealing first medium interface in the balloon component is communicated with the first medium channel of the guide tube and the second medium interface of the driving component. The sliding ring is drivingly connected with the first driving tendon and the driving component. The driving component is operated to pull the first driving tendon, so as to drive the sliding ring to move towards the proximal end to expose the balloon component. The second medium interface of the driving component is operated to inject medium into the balloon component, so as to make the balloon component expand. The driving component is operated to push the first driving tendon, so as to drive the sliding ring to move towards the distal end to push away the balloon component and place the balloon component in the stomach for weight loss treatment.

[0038] In this way, the balloon component is stored in a compressed state, filled with medium and released by using the endoscope transparent cap. During the whole process of transporting the balloon component by using the endoscope, the volume of the balloon component is small. Subsequently, the driving component on the proximal end of the endoscope is only needed to be operated to expose, expand and release the balloon component, without repeatedly operating the endoscope. These operations do not easily damage the esophageal mucosa, and can greatly improve the safety of the balloon placement operation. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 The schematic diagram of the installation structure of the gastric weight loss device provided by the embodiment of the application on the endoscope is shown in the figure.

[0040] Figure 2 The schematic diagram of the structure of the distal end of the gastric weight loss device in the initial state is shown in the figure.

[0041] Figure 3 The schematic diagram of the structure of the driving component of the gastric weight loss device is shown in the figure.

[0042] Figure 4 The schematic diagram of the structure of the gastric weight loss device when the balloon component is exposed by using the endoscope transparent cap is shown in the figure.

[0043] Figure 5 The schematic diagram of the structure of the gastric weight loss device when the balloon component is filled with medium by using the endoscope transparent cap is shown in the figure.

[0044] Figure 6 The schematic diagram of the structure of the gastric weight loss device after the balloon component is released by using the endoscope transparent cap is shown in the figure.

[0045] Figure 7 This is a schematic diagram of the sliding sleeve in the initial state of the gastric weight loss device provided in the embodiments of this application;

[0046] Figure 8 This is a schematic diagram of the structure of the gastric weight loss device provided in this application when the sliding sleeve moves proximally;

[0047] Figure 9 for Figure 8 Side view;

[0048] Figure 10 for Figure 9 Sectional view along axis AA;

[0049] Figure 11 for Figure 10 A magnified view of the area at point B;

[0050] Figure 12 This is a schematic diagram of the connection structure of the endoscope connector and guide tube in the gastric weight loss device provided in this application from one perspective.

[0051] Figure 13 This is a schematic diagram of the connection structure of the endoscope connector and guide tube in the gastric weight loss device provided in this application from another perspective;

[0052] Figure 14 for Figure 2 Side view of the intragastric weight loss device shown;

[0053] Figure 15 for Figure 14 CC-direction sectional view;

[0054] Figure 16 for Figure 15 A magnified view of the area at point D;

[0055] Figure 17 for Figure 6 The diagram shows the structure of the balloon component from another perspective.

[0056] The reference numerals in the above figures are explained as follows:

[0057] 1-Endoscope connector, 11-Connector body, 11a-First annular step, 11a1-First step surface, 11b-Second medium channel, 11c-Second annular step, 11c1-Second step surface, 11d-Second path groove, 11e-Inner hole, 11f-Step hole, 11f1-Third step surface, 12-Third medium interface, 13-Constraint post;

[0058] 2-Sliding sleeve, 21-Fixing ring, 22-Connecting ring, 23-Sliding ring, 24-Stop part, 241-Stop piece;

[0059] 3-balloon component, 3a-aperture, 3b-putting slot, 3c-food passage, 31-balloon, 32-liquid balloon, 33-stent, 331-fixing thorn, 34-connector, 35-first medium interface;

[0060] 4-guide tube, 4a-first medium passage, 4b-first path slot, 4c-limiting slot;

[0061] 51-first driving tendon, 52-second driving tendon, 53-transmission ring;

[0062] 6-driving component, 61-driving handle, 62-pushing and pulling rod, 63-second medium interface;

[0063] 7-endoscope;

[0064] 8-operating handle;

[0065] a-holding compartment. DETAILED DESCRIPTION

[0066] In order to make the person skilled in the art better understand the scheme of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0067] It should be particularly pointed out that: in the present application, the terms "first", "second", and the like, are only for the convenience of describing the same or similar structures and / or functions of two or more structures or components, and do not represent any special limitation on the order and / or importance.

[0068] In the present application, "and / or" only describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone.

[0069] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements; it can be mechanically connected, or communicatively connected. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0070] Please refer to Figures 1 to 6 , Figure 1 The schematic diagram of the mounting structure of the intragastric weight loss device provided by the embodiments of the present application on the endoscope is shown in FIG. 1, Figure 2 The schematic diagram of the structure of the distal end of the intragastric weight loss device provided by the embodiments of the present application in the initial state is shown in FIG. 2, Figure 3Structure diagram of driving component in gastric weight loss device provided by embodiments of the present application, Figure 4 Structure diagram of gastric weight loss device provided by embodiments of the present application when exposing balloon component by endoscope transparent cap, Figure 5 Structure diagram of gastric weight loss device provided by embodiments of the present application when filling medium into balloon component through endoscope transparent cap, Figure 6 Structure diagram of gastric weight loss device provided by embodiments of the present application when releasing balloon component by endoscope transparent cap. Wherein, Figure 2 and Figure 5 The dashed line in the figure represents the structure or component marked by the dashed line that cannot be observed under the current perspective, and is only used to assist in understanding the relative position of the corresponding structure or component.

[0071] In the embodiments provided by the present application, as shown in Figure 1 and Figure 2 , the gastric weight loss device for releasing balloon by endoscope transparent cap includes endoscope transparent cap and balloon component 3, the endoscope transparent cap includes endoscope connector 1, sliding sleeve 2, guide tube 4 and driving component 6. Wherein, the sliding sleeve 2 includes sliding ring 23, the endoscope connector 1 is used to sleeve the distal end of endoscope 7, the sliding ring 23 is sleeved on the endoscope connector 1, and the balloon component 3 is compressed on the outside of the endoscope connector 1 and the inside of the sliding sleeve 2. The guide tube 4 is arranged on the peripheral wall of the endoscope 7, the driving component 6 is arranged on the proximal end of the endoscope 7, and the endoscope connector 1 can be connected through the guide tube 4 and the driving component 6. The balloon component 3 has a self-sealing first medium interface 35, the guide tube 4 has a first medium passage 4a, and the driving component 6 has a second medium interface 63 as shown in Figure 3 , the first medium interface 35 is communicated through the first medium passage 4a and the second medium interface 63. The sliding ring 23 is drivingly connected through the first driving tendon 51 and the driving component 6, in use, the driving component 6 is configured to drive the sliding ring 23 to move towards the proximal end by pulling the first driving tendon 51, so as to expose the balloon component 3 as shown in Figure 4 , and drive the sliding ring 23 to move towards the distal end by pushing the first driving tendon 51, so as to push away the balloon component 3 as shown in Figure 6 . The balloon component 3 is configured to be inflated as shown in Figure 5 after being filled with medium.

[0072] It can be understood that the balloon component 3 is compressed and stored in the endoscope transparent cap. The endoscope transparent cap is delivered by using the endoscope 7, so that the delivery of the balloon component 3 can be realized. Based on the operation of the endoscope transparent cap, the exposure, inflation and release of the balloon component 3 can be realized.

[0073] The inner mirror joint 1 has an inner mirror channel for sleeving the inner mirror 7 and for the inner mirror 7 to carry surgical instruments in and out. The inner mirror joint 1 is sleeved on the distal end of the inner mirror 7, so that the installation of the inner mirror transparent cap and the balloon component 3 on the inner mirror 7 is realized.

[0074] The proximal end of the inner mirror 7 is provided with an operation handle 8. The driving component 6 can be arranged near the operation handle 8, so that the doctor can operate the driving component 6.

[0075] In the initial installation state as shown in Figure 2 , the balloon component 3 is compressed between the inner mirror joint 1 and the sliding sleeve 2. When the first driving tendon 51 is pulled to the proximal end by the driving component 6 as shown in Figure 4 , the sliding ring 23 moves to the proximal end, so that the balloon component 3 is exposed, and the exposure of the balloon component 3 is realized. When the medium is introduced through the second medium interface 63 on the driving component 6, the medium is transported through the first medium channel 4a of the inner mirror 7 outer wall guide pipe 4 and enters the balloon component 3 through the first medium interface 35, so that the volume of the balloon component 3 gradually increases as shown in Figure 5 , and the inflation of the balloon component 3 is realized. When the first driving tendon 51 is pushed to the distal end by the driving component 6, the sliding ring 23 moves to the distal end, so that the inflated balloon component 3 is pushed away as shown in Figure 6 , that is, the balloon component 3 is pushed to the distal end, so that the balloon component 3 leaves the inner mirror transparent cap and is disconnected from the first medium channel 4a, and the release of the balloon component 3 is realized, and the balloon component 3 is placed in the stomach.

[0076] After the inflated balloon component 3 is placed in the stomach, it can occupy part of the space in the stomach, that is, it can limit the effective volume in the stomach, so as to reduce the food intake of the patient, and then achieve the purpose of weight loss.

[0077] In this way, the compression storage, medium filling and release of the balloon component 3 by the inner mirror transparent cap can make the volume of the balloon component 3 smaller during the whole process of transporting the balloon component 3 by the inner mirror 7, and can realize the exposure, inflation and release of the balloon component 3 by only operating the driving component 6 at the proximal end of the inner mirror 7 after the balloon component 3 is transported to the position, without repeatedly operating the inner mirror 7. These are not easy to damage the esophageal mucosa, can greatly improve the safety of the balloon placement operation, and make the balloon placement operation simple and convenient, and can greatly improve the efficiency of the balloon placement operation.

[0078] Moreover, in order to avoid repeated operation of the endoscope, another way of placing the gastric balloon in the related art has appeared, that is, the swallowing placement method. This method is to swallow the compressed balloon with a catheter by the patient, and the catheter is left in the oral cavity to fill the medium into the balloon from the outside of the body. This method belongs to the line-keeping method, which will continuously stimulate the pharynx and cause significant nausea, vomiting and other reactions, so that a considerable proportion of patients cannot tolerate it and terminate the treatment in advance. At the same time, the catheter is easy to cause the balloon to be mis-expanded in the esophagus during the pulling process, which has the risk of perforation, and the success rate of balloon placement is also low, which is not conducive to the smooth progress of weight loss treatment. The gastric weight loss device provided by the embodiments of the present application not only does not need to repeatedly operate the endoscope 7 as described above, but also discards the line-keeping catheter of the traditional swallowing balloon, avoids the nausea, vomiting and other reactions caused by the long-term foreign body sensation in the oral cavity, improves the treatment compliance, and further cooperates with the endoscope transparent cap and the endoscope 7 to accurately control the exposure, inflation and release of the balloon component 3, which can prevent the mis-expansion of the balloon component 3 through the esophagus, further improve the safety of the balloon placement operation, and improve the success rate of the balloon placement, so as to achieve the purpose of rapid weight loss of obese patients.

[0079] The sliding sleeve 2 is a key component for compressing, exposing and releasing the balloon component 3, and the structure and performance thereof directly affect the safety and efficiency of the balloon component 3 placement operation.

[0080] Please refer to Figures 7 to 11 , Figure 7 for the structure schematic view of the gastric weight loss device provided by the embodiments of the present application in the initial state of the sliding sleeve, Figure 8 for the structure schematic view of the gastric weight loss device provided by the embodiments of the present application when the sliding sleeve moves towards the proximal end, Figure 9 for Figure 8 the side view, Figure 10 for Figure 9 the A-A cross-sectional view of, Figure 11 for Figure 10 the local enlarged view at B.

[0081] In actual arrangement, the specific structure of the sliding sleeve 2 is not limited.

[0082] As shown in Figure 7 , the sliding sleeve 2 further comprises a fixing ring 21 and a connecting ring 22. Among them, as Figure 2As shown, the fixed ring 21 and the connecting ring 22 are both sleeved on the inner mirror joint 1, the proximal end of the sliding ring 23 is connected through the connecting ring 22 and the fixed ring 21, and the fixed ring 21 is fixed on the inner mirror joint 1. The distal end of the first driving tendon 51 is connected with the proximal end of the sliding ring 23 and located outside the connecting ring 22, of course, also outside the fixed ring 21. The connecting ring 22 and the sliding ring 23 are both made of flexible material. The inner side of the sliding ring 23, part of the inner side of the connecting ring 22 and the outer side of the inner mirror joint 1 form a containing bin a, and the compressed balloon component 3 is located in the containing bin a. In use, as shown in Figure 4 and Figure 8 As shown, when the sliding ring 23 moves to the proximal end, it can drive the connecting ring 22 to move to the proximal end and be nested on the outer peripheral wall of the fixed ring 21 to expose the balloon component 3.

[0083] It is not difficult to understand that pulling the first driving tendon 51 to the proximal end can drive the sliding ring 23 to move to the proximal end, and the sliding ring 23 drives the connecting ring 22 to move to the proximal end. Since the fixed ring 21 is fixed on the inner mirror joint 1, the flexible connecting ring 22 will be turned and deformed and gradually nested on the fixed ring 21, the sliding ring 23 is nested on the connecting ring 22, and the sliding ring 23 and the connecting ring 22 are nested on the fixed ring 21 from the outside to the inside, and at the same time, the balloon component 3 is exposed. After the balloon component 3 is filled with medium and is fully inflated, the first driving tendon 51 is pushed to the distal end, the first driving tendon 51 applies a pushing force to the sliding ring 23, drives the sliding ring 23 to move to the distal end, and pushes the inflated balloon component 3 to the distal end. In this process, the restoring force of the connecting ring 22 can also assist the sliding ring 23 to push the balloon component 3, so that the process of pushing the sliding ring 23 away from the balloon component 3 is more smooth.

[0084] In this way, the structure of the sliding sleeve 2 is designed skillfully, the movement of the sliding ring 23 to the proximal end is more stable and controllable by using the connecting ring 22, and the sliding ring 23 can be smoothly nested on the fixed ring 21 to smoothly expose the balloon component 3, so that the process of pushing the sliding ring 23 to the distal end to push the balloon component 3 is more smooth to smoothly release the balloon component 3.

[0085] It is worth mentioning that in the above-mentioned embodiments of the present application, the containing bin a is formed between the inner side of the sliding ring 23, part of the inner side of the connecting ring 22 and the outer side of the inner mirror joint 1. In fact, the containing bin a can also be formed between the inner side of the sliding ring 23, the entire inner side of the connecting ring 22 and the outer side of the inner mirror joint 1, which is not limited in the present application.

[0086] In addition, the connecting ring 22 can be relatively thin relative to the sliding ring 23, the connecting ring 22 can be connected with part of the sliding ring 23 close to the inner side, and the first driving tendon 51 can be connected with another part of the sliding ring 23 close to the outer side, so that the sliding ring 23 can be more smoothly nested on the fixed ring 21.

[0087] In specific configurations, the connection method between the first driving tendon 51 and the sliding ring 23 is not limited.

[0088] Please combine Figure 8 Understood, in this embodiment of the application, the intragastric weight loss device further includes a transmission ring 53 and two or more second drive tendons 52. The transmission ring 53 and the sliding ring 23 are coaxially arranged, and the two or more second drive tendons 52 are evenly spaced along the circumference of the sliding ring 23. The proximal end of the sliding ring 23 is connected to the distal end of the transmission ring 53 through the two or more second drive tendons 52, and the distal end of the first drive tendon 51 is fixed to the proximal end of the transmission ring 53. Figure 2 As shown, the outer wall of the guide tube 4 is provided with a limiting groove 4c that extends through the width direction, and the transmission ring 53 is at least partially located within the limiting groove 4c. During the movement of the first drive tendon 51 towards the proximal or distal end, the transmission ring 53 can respectively abut against the two side walls of the limiting groove 4c.

[0089] In this way, not only can the tension or thrust of the first drive tendon 51 be relatively evenly distributed to each of the second drive tendons 52 through the transmission ring 53 to achieve uniform transmission of tension or thrust to the sliding ring 23, making the movement of the sliding ring 23 towards the proximal or distal end more stable, thus making the exposure and release of the balloon component 3 more smooth and successful, but the transmission ring 53 can also cooperate with the limiting groove 4c of the guide tube 4 to limit the movement of the sliding ring 23, so as to more conveniently and accurately control the movement stroke of the sliding ring 23, thereby making it more convenient and accurate to control the exposure and release of the balloon component 3, making the compressed balloon component 3 less likely to be accidentally expanded when passing through the esophagus during the delivery process, and also enabling the inflated balloon component 3 to be released in time, improving the placement safety, placement accuracy and placement efficiency of the balloon component 3.

[0090] Furthermore, the arrangement of the transmission ring 53 and the second drive tendon 52 allows for the use of only one first drive tendon 51, facilitating the pulling or pushing operation control of the first drive tendon 51 by the proximal drive component 6. Of course, more than two first drive tendons 51 can also be used; this application does not impose any restrictions on this.

[0091] Furthermore, the number of second driving tendons 52 is not limited; there can be two or more. In the embodiments of this application, the second driving tendons 52 can be configured as follows: Figure 4 The four second drive tendons 52 shown are evenly spaced along the circumference of the sliding ring 23, which allows for more stable control of the movement of the sliding ring 23.

[0092] In fact, the transmission ring 53 and the second drive tendon 52 can be omitted, and the first drive tendon 51 and the sliding ring 23 can be directly connected to achieve the direct transmission of tension or thrust to the sliding ring 23. This application does not limit this.

[0093] It is worth mentioning that both the first driving tendon 51 and the second driving tendon 52 can be made of materials such as nickel-titanium wire, and this application does not impose any restrictions on this.

[0094] Please refer to this as well. Figures 12 to 16 , Figure 12 This is a schematic diagram of the connection structure of the endoscope connector and guide tube in the gastric weight loss device provided in this application, viewed from one angle. Figure 13 This is a schematic diagram of the connection structure of the endoscope connector and guide tube in the gastric weight loss device provided in this application from another perspective. Figure 14 for Figure 2 The side view of the intragastric weight loss device shown is shown. Figure 15 for Figure 14 CC-direction sectional view, Figure 16 for Figure 15 A magnified view of a section at point D.

[0095] Endoscope connector 1 is a component for installing endoscope 7 and cooperating with sliding sleeve 2 to operate balloon component 3. In actual installation, its specific structure is not limited.

[0096] In the embodiments provided in this application, please refer to Figure 12 and Figure 13 Understandably, the endoscope connector 1 includes a connector body 11; the outer peripheral wall of the connector body 11 is provided with a second annular step 11c, the second annular step 11c having a second step surface 11c1 facing the distal end. For example... Figures 14 to 16 As shown, the fixed ring 21 is sleeved on the outer peripheral wall corresponding to the second annular step 11c and abuts against the second step surface 11c1 at its proximal end face. During the movement of the sliding ring 23 towards the proximal end, it can abut against the second step surface 11c1 at its proximal end face.

[0097] When the first driving tendon 51 is pulled proximally, the sliding ring 23 and the connecting ring 22 move proximally along the outer peripheral wall of the fixed ring 21 until the sliding ring 23 and the connecting ring 22 are as follows: Figure 11 As shown, the rings are stacked sequentially from the outside to the inside on the fixed ring 21. The proximal end face of the sliding ring 23 abuts against the second step surface 11c1 of the second annular step 11c. The proximal end face of the transmission ring 53 abuts against the side wall of the limiting groove 4c at the proximal end. The balloon component 3 is fully exposed.

[0098] Thus, not only can the second annular step 11c position the fixed ring 21 on the endoscope connector 1, improving installation accuracy and reliability, but the outer peripheral wall of the fixed ring 21 can also provide constraint and guidance for the movement of the sliding ring 23, making the movement of the sliding ring 23 more stable and reliable. The second annular step 11c can also provide a limit for the movement of the sliding ring 23, making the movement of the sliding ring 23 more precise and controllable, thereby making the exposure operation of the balloon component 3 more precise and controllable.

[0099] It is worth mentioning that the inner wall of the endoscope channel in the endoscope joint 1 can be provided with a stop, specifically, the endoscope channel can be in the form of a stepped hole as shown in Figure 16 , which can include an inner hole 11e and a stepped hole 11f from the distal end to the proximal end, and the stepped hole 11f has a third stepped surface 11f1 facing the proxal end to provide positioning for the installation of the endoscope 7 to improve installation accuracy.

[0100] Further, as shown in Figure 12 , in the embodiments of the present application, the outer side wall of the guide tube 4 is provided with a first path groove 4b penetrating in the length direction, the outer peripheral wall of the joint body 11 is provided with two or more second path grooves 11d penetrating in the axial direction on the side of the second stepped surface 11c1 close to the proximal end, the distal end surface of the guide tube 4 abuts against the proximal end surface of the joint body 11, and one of the second path grooves 11d and the first path groove 4b are in communication. As shown in Figure 16 , the distal end of the second drive tendon 52 is fixed to the proximal end surface of the sliding ring 23, and as shown in Figure 2 , each second drive tendon 52 is clamped in each second path groove 11d, and the first drive tendon 51 and one of the second drive tendons 52 are clamped in the first path groove 4b.

[0101] In this way, during the movement of the first drive tendon 51 towards the proximal end or the distal end, the first drive tendon 51 and one of the second drive tendons 52 are always clamped in the first path groove 4b, and each second drive tendon 52 is always clamped in the corresponding second path groove 11d, and the two path grooves provide constraint and guidance for the corresponding drive tendons, making the movement of each drive tendon more stable and reliable, thereby making the process of exposing and releasing the balloon component 3 by the sliding sleeve 2 more stable and reliable. Moreover, these structural designs also make the entire gastric weight loss device more compact and more suitable for the human body cavity environment.

[0102] The driving component 6 is a component for manipulating the sliding sleeve 2 and the balloon component 3 at the proximal end of the endoscope 7, and its specific structure is not limited in actual arrangement.

[0103] In the embodiments provided in the present application, it is understood in combination with Figure 3 that the driving component 6 includes a driving handle 61 and a push-pull rod 62. The push-pull rod 62 is slidingly arranged in the driving handle 61, the proximal end of the first drive tendon 51 is connected with the push-pull rod 62, and pulling or pushing the push-pull rod 62 can pull or push the first drive tendon 51.

[0104] In use, the operator holds the drive handle 61 and pulls the push-pull rod 62 proximally to activate the first drive tendon 51, controlling the exposure of the balloon component 3; pushing the push-pull rod 62 distally activates the first drive tendon 51, controlling the release of the balloon component 3. This allows for quick and precise control of the exposure and release of the balloon component 3, and the operation is relatively simple and convenient. Furthermore, the second media interface 63 can be located on the drive handle 61 for easy media delivery.

[0105] Please combine Figure 16 As previously described, a receiving chamber a is formed between the outer wall of the endoscope connector 1 and the inner wall of the sliding sleeve 2 to accommodate the compressed balloon component 3. Specifically, the receiving chamber a can be annular. The connector body 11 can have a first annular step 11a on the outer peripheral wall of the distal end and on the side of the second annular step 11c near the distal end. The first annular step 11a has a first step surface 11a1 facing the distal end. The outer peripheral wall surface corresponding to the first annular step 11a forms the inner annular wall surface of the receiving chamber a, and the first step surface 11a1 forms the proximal end face of the receiving chamber a. The fixing ring 21, connecting ring 22, and sliding ring 23 are hollow cylindrical structures, which can be arranged as follows: Figure 16 As shown, the fixing ring 21 and the connecting ring 22 are partially fitted and fixed to the outer peripheral wall corresponding to the second annular step 11c. The inner peripheral wall surface of the remaining part of the connecting ring 22 and the inner peripheral wall surface of the sliding ring 23 form the outer annular wall surface of the receiving chamber a, so as to compress and constrain the balloon component 3 from the side, so that the balloon component 3 will not be exposed from the side.

[0106] Furthermore, in the embodiments provided in this application, such as Figure 7 As shown, the sliding sleeve 2 also includes a stop portion 24. The stop portion 24 is located at the distal end of the sliding ring 23, as shown... Figure 16 As shown, the proximal end face of the stop portion 24 abuts against the distal end face of the endoscope connector 1. The stop portion 24 is made of a flexible material, and when the sliding ring 23 moves proximally, it can... Figure 4 The stop portion 24 is shown to move away from the distal end face of the endoscope connector 1.

[0107] As can be appreciated, the containment cavity a is formed between the stop portion 24 and the sliding ring 23, the connecting ring 22 and the joint body 11. The sliding ring 23 and the connecting ring 22 can be used to laterally compress and constrain the balloon member 3 so that the balloon member 3 cannot be exposed laterally. The stop portion 24 can be used to constrain the balloon member 3 from the distal side in the axial direction so that the balloon member 3 cannot be exposed distally in the axial direction. In this way, during the delivery of the balloon member 3, the sliding sleeve 2 can over-compress and store the balloon member 3 in the containment cavity a, which can improve the passability of the distal part of the intragastric weight loss device in the esophagus and ensure the smooth delivery of the balloon member 3. When the balloon member 3 needs to be exposed, the driving member 6 is controlled to pull the first driving tendon 51 proximally, which can pull the sliding ring 23 proximally so that the sliding ring 23 moves in the axial direction of the endoscope joint 1 to apply a pulling force to the stop portion 24. Since the stop portion 24 is made of a flexible material, it can deform when subjected to a pulling force, so that the distal end of the sliding sleeve 2 is opened away from the distal end face of the endoscope joint 1, which corresponds to the opening of the distal end of the sliding sleeve 2, and the balloon member 3 can be exposed smoothly. Figure 8

[0108] In this way, the structure of the sliding sleeve 2 is simple and compact, which can effectively constrain the balloon member 3 during the delivery of the balloon member 3 and open the distal end to expose the balloon member 3 smoothly when the balloon member 3 needs to be exposed.

[0109] Specifically, the structure of the stop portion 24 is not limited.

[0110] In the embodiment of the present application, as shown in Figure 7 , the stop portion 24 includes a plurality of stop pieces 241. The stop pieces 241 can be fan ring-shaped, and the plurality of stop pieces 241 can be distributed along the circumference of the sliding ring 23 and share a common center, that is, there are gaps between adjacent stop pieces 241, and each gap passes through the same center. In this way, when the sliding sleeve 2 moves proximally, each stop piece 241 opens outward, so that the entire stop portion 24 can be opened more smoothly and uniformly, and finally fits outside the connecting ring 22 as shown in Figure 4 , so that the balloon member 3 can be exposed more smoothly and stably; when the sliding sleeve 2 moves distally, each stop piece 241 can push the balloon member 3 distally, so that the entire stop portion 24 can be closed more smoothly and uniformly, and finally folds to the outside of the distal end face of the endoscope joint 1 as shown in Figure 6 , so that the balloon member 3 can be released more smoothly and stably.

[0111] Further, in the embodiment of the present application, the proximal end face of the stop portion 24 and the distal end face of the endoscope joint 1 can be connected by a plurality of fixed points. The fixed points are configured to break when the pulling force on the stop portion 24 exceeds a predetermined pulling force threshold, so that the stop portion 24 leaves the distal end face of the endoscope joint 1.

[0112] ​In use, the stop portion 24 and the inner mirror joint 1 are connected through the above-mentioned point connection mode, so that the connection is more stable, the balloon component 3 can be more effectively constrained on the inner side of the stop portion 24, and a weak stress area can be formed at the fixed point. When the pulling force applied to the stop portion 24 by the sliding ring 23 exceeds the preset pulling force threshold value by pulling the first driving tendon 51 to the proximal end, the fixed point can be smoothly broken, so that the stop portion 24 smoothly leaves the distal end face of the inner mirror joint 1 and moves to the proximal end with the sliding ring 23, and the balloon component 3 can be more smoothly and stably exposed.

[0113] Notably, the fixed points between the stop portion 24 and the distal end face of the inner mirror joint 1 can be uniformly distributed on the connection surface to make the connection more stable. In addition, the fixed points can be welding points formed by laser welding or can be adhesive points formed by adhesion, which are not limited in the present application.

[0114] In particular, the flexible material used by the stop portion 24 is not limited, for example, it can be silicone, which has high flexibility and is more easily deformed to more easily leave the abutting distal end face. Of course, the flexible material used by the connection ring 22 and the sliding ring 23 is also not limited and can also be silicone to more smoothly move and be nested. In addition, the material of the fixed ring 21 is also not limited, for example, it can be made of hard plastic.

[0115] In particular, the stop portion 24, the sliding ring 23 and the connection ring 22 form the distal flexible part of the sliding sleeve 2, and the connection mode between the distal flexible part and the fixed ring 21 is not limited. For example, the connection can be achieved by adhesion, which is not only stable but also convenient to operate. For another example, the connection can also be achieved by secondary injection molding, specifically, the fixed ring 21 can be first injection molded using hard plastic, and then the connection ring 22, the sliding ring 23 and the stop portion 24 can be sequentially injection molded on the distal end face of the fixed ring 21 using silicone material, which not only has high molding efficiency but also has higher dimensional accuracy and surface quality of the molded sliding sleeve 2, which is more conducive to working in the human body cavity environment.

[0116] The balloon component 3 is an execution component placed in the stomach for weight loss, and its structural performance determines the safety and efficiency of the delivery and release process and the weight loss effect.

[0117] Please refer to Figure 17 , Figure 17 for Figure 6 the structure schematic view of the balloon component in another perspective.

[0118] In actual setting, the specific structure of the balloon component 3 is not limited.

[0119] In the embodiments provided in the present application, as Figure 17As shown, the balloon component 3 comprises, in sequence along the first direction, a gas balloon 31, a liquid balloon 32 and a stent 33. Among them, as shown in Figure 16 As shown, the gas balloon 31 and the liquid balloon 32 each have a first medium interface 35; as shown in Figure 3 and Figure 13 As shown, the first medium channel 4a and the second medium interface 63 each have two, and the two first medium interfaces 35 are connected through the two first medium channels 4a and the two second medium interfaces 63. The stent 33 is made of a memory alloy material and has a food channel 3c extending along the first direction.

[0120] As can be understood, the two second medium interfaces 63 are respectively used to connect a gas source and a liquid source to supply gaseous medium and liquid medium to the gas balloon 31 and the liquid balloon 32 respectively. In use, after the balloon component 3 is exposed, gaseous medium and liquid medium can be filled into the gas balloon 31 and the liquid balloon 32 through the two second medium interfaces 63 and the two first medium interfaces 35 respectively, so that the gas balloon 31 and the liquid balloon 32 expand as shown in Figure 5 At the same time, the compressed stent 33 made of a memory alloy material gradually recovers deformation and unfolds as shown in Figures 5 to 6

[0121] After the balloon component 3 is released as shown in Figure 6 , the stent 33 can be supported in the duodenal bulb to fix the balloon component 3; the gas balloon 31, due to its relatively light weight, floats on the surface of gastric acid and can touch and stimulate the fundus of the stomach, increasing the feeling of satiety; the liquid balloon 32, due to its relatively heavy weight, stays in the antrum of the stomach, not only occupying the effective gastric volume to reduce the patient's food intake, but also blocking food to some extent, prolonging the time of food passing through the antrum of the stomach to prolong the feeling of satiety, and also assisting in fixing the balloon component 3; food ultimately flows into the duodenum through the food channel 3c.

[0122] In this way, the dual effects of stimulating the fundus of the stomach by the gas balloon 31 and blocking gastric emptying by the liquid balloon 32 can be utilized simultaneously to improve the weight loss effect of the balloon component 3, and the active fixation of the balloon component 3 by the stent 33, combined with the auxiliary fixation effect of the liquid balloon 32, can improve the stability of the fixation of the balloon component 3 and ensure the smooth exertion of the weight loss effect of the balloon component 3.

[0123] The first medium interface 35 of the gas balloon 31 and the liquid balloon 32 is a self-closing interface, and its specific structure is not limited, for example, a self-closing valve can be provided, and after the balloon component 3 is pushed away from the endoscope transparent cap, the first medium interface 35 is disconnected from the corresponding first medium channel 4a and self-closes to prevent the medium filled in the gas balloon 31 and the liquid balloon 32 from flowing out.

[0124] Please refer to Figure 12 and Figure 16 ​It is understood that in the embodiments of the present application, the inner mirror joint 1 further comprises two third medium interfaces 12. Specifically, the two third medium interfaces 12 are arranged on the first step surface 11a1, and the joint body 11 is provided with two second medium channels 11b on the side of the first step surface 11a1 close to the proximal end. The compressed balloon component 3 is located on the side of the first step surface 11a1 close to the distal end, and the inlet ends of the two third medium interfaces 12 are respectively communicated with the two second medium channels 11b, and the outlet ends are respectively communicated with the two first medium interfaces 35, as shown in Figure 13 the distal end face of the guide tube 4 abuts against the proximal end face of the joint body 11, and the two second medium channels 11b are respectively communicated with the two first medium channels 4a.

[0125] In this way, the balloon component 3 is compressed on the outside of the inner mirror joint 1, on the side of the first step surface 11a1 close to the distal end, and its two first medium interfaces 35 are respectively communicated through the two third medium interfaces 12 arranged on the first step surface 11a1 and the two second medium channels 11b of the inner mirror joint 1, and the two second medium channels 11b are respectively communicated to the two first medium channels 4a of the guide tube 4. In use, the gaseous medium and the liquid medium are respectively sent into the corresponding first medium channels 4a through the corresponding second medium interfaces 63 on the driving handle 61, and then sent into the balloon 31 and the liquid balloon 32 through the corresponding second medium channels 11b, third medium interfaces 12 and first medium interfaces 35.

[0126] In this way, not only can the stable and smooth delivery of the medium be ensured, but also the structure of the distal end part of the intragastric weight loss device is more compact.

[0127] It is worth noting that when the balloon component 3 is installed into the accommodation bin a, the compression direction is not limited. Exemplarily, the balloon component 3 can be compressed in a direction perpendicular to the first direction, and the compressed balloon component 3 is arranged around the outer peripheral wall of the joint body 11, which not only makes the first medium interface 35 of the balloon component 3 and the third medium interface 12 of the joint body 11 more convenient to connect, but also makes the release of the balloon component 3 more easily operated, and also makes the structure of the distal end part of the intragastric weight loss device more compact.

[0128] Specifically, the connection mode between the balloon 31 and the liquid balloon 32 is not limited.

[0129] Please refer to Figure 12 and Figure 17It is understood that the balloon component 3 also comprises a connecting piece 34, the inner mirror joint 1 also comprises a constraint column 13, the gas balloon 31 and the liquid balloon 32 are connected through the connecting piece 34, the constraint column 13 is arranged on the first step surface 11a1 and extends along the axial direction of the joint body 11, and the connecting piece 34 is made of a flexible material. Among them, the compressed balloon component 3 is arranged around the circumference of the joint body 11, the connecting piece 34 is constrained on the inner side of the constraint column 13, and the two third medium interfaces 12 are respectively located on the two sides of the constraint column 13 in the circumferential direction of the joint body 11.

[0130] In this way, the connecting piece 34 connected between the gas balloon 31 and the liquid balloon 32 is cleverly constrained by the constraint column 13 on the first step surface 11a1, and the constraint effect of the sliding sleeve 2 is matched, so as to realize double locking of the balloon component 3. Not only can the installation of the compressed balloon component 3 in the containing bin a be more stable, but also it is easier, and the balloon component 3 can be constrained at the distal end of the inner mirror transparent cap during the inflation process, so that the inflation and release of the balloon component 3 are more controllable, and the structure of the distal end of the intragastric weight loss device is more compact.

[0131] In addition, please refer to Figure 17 It is understood that the gas balloon 31 and the liquid balloon 32 can be partially spherical after inflation, and the two can be connected through the connecting piece 34 at opposite end faces, and the two first medium interfaces 35 can be respectively arranged at the opposite two end faces. The connecting piece 34 can extend in the first direction, and the axis of the food passage 3c of the stent 33 can be parallel to the first direction. In this way, the balloon component 3 is easier to install, and can better play the weight loss effect.

[0132] In addition, the two third medium interfaces 12 on the first step surface 11a1 can be arranged obliquely relative to the axis of the joint body 11, and the extension line of the constraint column 13 can intersect the axis of the two third medium interfaces 12. In this way, the installation of the balloon component 3 is more reliable, and the structure of the intragastric weight loss device is more compact.

[0133] When specifically arranged, the structure of the stent 33 is not limited.

[0134] In the embodiments of the present application, as Figure 17 shown, the stent 33 can be a hollow circular tubular structure, and a plurality of fixed spines 331 can be arranged on the outer peripheral wall of the stent 33. The plurality of fixed spines 331 can be arranged at intervals in the first direction. Among them, the fixed spine 331 can be a tiny spine, which can not only provide reliable anchoring force, but also has controllable penetration depth.

[0135] Compared with the traditional intragastric balloon weight loss device which is anchored to the gastric wall by a rigid stent, it is easy to cause tissue erosion. The stent 33 made of memory alloy material is fixed to the inner wall of the duodenal bulb by multiple small spikes, which not only makes the placement of the balloon component 3 in the stomach more stable, but also is not easy to damage the inner wall of the cavity, ensures the continuous play of the weight loss effect after the placement of the balloon component 3, and also ensures the personal safety of the patient.

[0136] Further, as shown in Figure 17 The end of the liquid bag 32 close to the stent 33 is provided with a plurality of openings 3a; the plurality of openings 3a are distributed along the circumference of the liquid bag 32, and the openings 3a and the food channel 3c are communicated. In this way, the food blocked by the liquid bag 32 can enter the food channel 3c through each opening 3a, and enter the duodenum through the food channel 3c, which can avoid the food being retained in the stomach for too long by the liquid bag 32 on the basis of ensuring the effect of the liquid bag 32 blocking the gastric emptying, and cleverly realize the dual effect of weight loss and smooth food flow.

[0137] Further, as shown in Figure 17 The outer wall of at least one of the gas bag 31 and the liquid bag 32 is provided with a plurality of placing grooves 3b; the placing grooves 3b store sustained-release drugs. In use, the sustained-release drugs for treating chronic diseases such as diabetes can be placed in each placing groove 3b in advance, and after the release of the balloon component 3, the sustained-release drugs in each placing groove 3b will be released in the stomach to play a disease treatment role. In this way, compared with the traditional intragastric balloon weight loss device which can only provide physical occupation and lacks a synergistic treatment mechanism, and the traditional endoscope transparent cap which can only be used as an observation tool and cannot carry a drug sustained-release unit, the above-mentioned embodiments of the intragastric weight loss device cleverly integrate the sustained-release drug sites on the surfaces of the gas bag 31 and the liquid bag 32, which can realize the synergistic intervention of obesity and metabolic diseases such as diabetes, and can break through the limitation of single physical occupation.

[0138] The working principle of the intragastric weight loss device provided by the embodiments of the present application will be described below in conjunction with the drawings:

[0139] In the initial state, the balloon component 3 is compressed in the containing bin a of the endoscope transparent cap, at this time, the sustained-release drugs for treating metabolic diseases have been placed in the placing grooves 3b of the balloon component 3.

[0140] When installing, the endoscope connector 1 can be sleeved on the distal end of the endoscope 7, and the guide tube 4 and the endoscope 7 are fixed and bonded by medical tape, and the driving component 6 is arranged at the position of the proximal end operation handle 8 of the endoscope 7, so as to complete the installation of the intragastric weight loss device on the endoscope 7.

[0141] When in use, the main part of the intragastric weight loss device, i.e. the part composed of the endoscope joint 1, the sliding sleeve 2 and the balloon component 3, together with the driving tendons, the transmission ring 53 and the guide tube 4, enters the human body cavity along with the endoscope 7 when the endoscope examination or treatment is performed or when the treatment for weight loss is performed. When the doctor observes that the main part of the intragastric weight loss device reaches the appropriate position, the balloon component 3 is inserted:

[0142] The balloon component 3 is exposed: the doctor holds the driving handle 61 and pulls the push-pull rod 62 towards the proximal end, so that the first driving tendon 51 drives the sliding ring 23 to move towards the proximal end through the transmission ring 53 and the second driving tendons 52, and then drives the connecting ring 22 to move towards the proximal end, the fixed point between each stop piece 241 and the joint body 11 is broken, the stop portion 24 moves towards the proximal end, the balloon component 3 gradually emerges, and finally the transmission ring 53 abuts against the side wall surface of the limiting groove 4c near the proximal end in the guide tube 4, and the sliding ring 23 and the connecting ring 22 are nested on the outer peripheral wall of the fixed ring 21 as shown in Figure 4 , and the balloon component 3 is completely exposed;

[0143] The medium is filled: after the balloon component 3 is exposed, the doctor fills the gaseous medium and the liquid medium into the air bag 31 and the liquid bag 32 through the two second medium interfaces 63 on the driving handle 61, so that the air bag 31 and the liquid bag 32 gradually expand as shown in Figure 5 , the bracket 33 at the end of the liquid bag 32 made of memory alloy material gradually recovers the deformation in the duodenal bulb, the slow-release medicine in the placing groove 3b is gradually released, and the balloon component 3 as a whole is still at the distal end of the endoscope transparent cap under the constraint of the constraint column 13;

[0144] The balloon component 3 is released: after the balloon component 3 is fully inflated, the bracket 33 is fixed in the duodenal bulb through the small fixed thorns 331 on the surface, the doctor pushes the push-pull rod 62 towards the distal end, so that the first driving tendon 51 drives the sliding ring 23 to move towards the distal end through the transmission ring 53 and the second driving tendons 52, and then drives the stop portion 24 to move towards the distal end, gradually pushes the inflated balloon component 3 towards the distal end, and finally the transmission ring 53 abuts against the side wall surface of the limiting groove 4c near the distal end in the guide tube 4, and each stop piece 241 gradually folds to the outside of the distal end of the endoscope joint 1 as shown in Figure 6 , the balloon component 3 is pushed away from the endoscope transparent cap, the first medium interface 35 of the balloon component 3 is self-sealed, the release of the balloon component 3 is realized, and the insertion of the balloon component 3 is completed.

[0145] After the balloon component 3 is released, the air bag 31 floats on the surface of the gastric acid and touches and stimulates the fundus part of the stomach, increasing the feeling of satiety; the liquid bag 32 stays in the antrum part of the stomach, occupies the effective volume in the stomach, reduces the food intake of the patient, and at the same time, to a certain extent, blocks the gastric emptying, prolongs the feeling of satiety, and assists the stent 33 in fixing the balloon component 3; the food blocked by the liquid bag 32 finally enters the food channel 3c of the stent 33 through each aperture 3a at the end of the liquid bag 32, and enters the duodenum through the food channel 3c.

[0146] During the above-mentioned delivery process of the balloon component 3, the balloon component 3 is stored in the distal end of the endoscope transparent cap by overpressure, has a small volume, and after the balloon component 3 is delivered in place, only the driving part 6 of the endoscope transparent cap at the proximal end of the endoscope 7 needs to be operated to realize the exposure, inflation and release of the balloon component 3, without repeated operation of the endoscope 7, and the balloon component 3 can be conveniently and accurately exposed and released by the cooperation of the endoscope transparent cap and the endoscope 7 and the cooperation of the transmission ring 53 and the limiting groove 4c in the guide tube 4, which is not easy to damage the esophageal mucosa, and the balloon component 3 is not easy to misexpand when passing through the throat, which can greatly improve the safety and accuracy of the balloon implantation operation, and the delivery and implantation operation of the balloon component 3 is also very convenient, which can greatly improve the efficiency of the balloon implantation operation.

[0147] After the balloon component 3 is implanted, the double action of stimulating the fundus part of the stomach by the air bag 31 and blocking the gastric emptying by the liquid bag 32 can greatly improve the weight loss effect of the balloon component 3, and the active fixation of the small fixation thorns 331 on the surface of the stent 33 made of shape memory alloy material in the duodenal bulb can make the fixation of the balloon component 3 more reliable and not easy to damage the inner wall of the cavity, and can ensure the smooth play of the weight loss effect of the balloon component 3 and the safety of the weight loss treatment process, and after the slow-release drugs on the surfaces of the air bag 31 and the liquid bag 32 are released, the synergistic intervention of obesity and diabetes and other metabolic diseases can be realized.

[0148] The principles and implementation modes of the present application are described by using specific examples in the present text, and the above-mentioned examples are only used to help understand the device and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A gastric weight-loss device that utilizes an endoscopic transparent cap to release a balloon, characterized in that, It includes an endoscope transparent cap and a balloon component (3); the endoscope transparent cap includes an endoscope connector (1), a sliding sleeve (2), a guide tube (4) and a drive component (6); The sliding sleeve (2) includes a sliding ring (23), the endoscope connector (1) is used to fit the distal end of the endoscope (7), the sliding ring (23) is fitted on the endoscope connector (1), and the balloon component (3) is compressed on the outside of the endoscope connector (1) and the inside of the sliding sleeve (2). The guide tube (4) is disposed on the outer peripheral wall of the endoscope (7), and the driving component (6) is disposed at the proximal end of the endoscope (7); the balloon component (3) has a self-sealing first media interface (35), the guide tube (4) has a first media channel (4a), and the driving component (6) has a second media interface (63). The first media interface (35) is connected to the second media interface (63) through the first media channel (4a). The sliding ring (23) is connected to the driving component (6) via a first driving tendon (51); the driving component (6) is configured to drive the sliding ring (23) to move proximally by pulling the first driving tendon (51) to expose the balloon component (3), and to drive the sliding ring (23) to move distally by pushing the first driving tendon (51) to push away the balloon component (3); the balloon component (3) is configured to inflate after a medium is introduced.

2. The intragastric weight loss device utilizing an endoscopic transparent cap to release a balloon according to claim 1, characterized in that, The sliding sleeve (2) also includes a fixing ring (21) and a connecting ring (22); The fixing ring (21) and the connecting ring (22) are both sleeved on the endoscope connector (1). The proximal end of the sliding ring (23) is connected to the fixing ring (21) through the connecting ring (22). The fixing ring (21) is fixed to the endoscope connector (1). The distal end of the first driving tendon (51) is connected to the proximal end of the sliding ring (23) and is located outside the connecting ring (22). Both the connecting ring (22) and the sliding ring (23) are made of flexible material. A receiving chamber (a) is formed between the inner side of the sliding ring (23), at least part of the inner side of the connecting ring (22), and the outer side of the endoscope connector (1). The compressed balloon component (3) is located in the receiving chamber (a). When the sliding ring (23) moves proximally, it can drive the connecting ring (22) to move proximally and overlap with the connecting ring (22) on the outer peripheral wall of the fixing ring (21) to expose the balloon component (3).

3. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 2, characterized in that, The gastric weight loss device that uses an endoscopic transparent cap to release a balloon also includes a drive ring (53) and two or more second drive tendons (52). The transmission ring (53) and the sliding ring (23) are coaxially arranged, and two or more second driving tendons (52) are evenly spaced along the circumference of the sliding ring (23). The proximal end of the sliding ring (23) is connected to the distal end of the transmission ring (53) through two or more second driving tendons (52), and the distal end of the first driving tendon (51) is fixed to the proximal end of the transmission ring (53). The outer wall of the guide tube (4) is provided with a limiting groove (4c) that extends through the width direction, and the transmission ring (53) is at least partially located in the limiting groove (4c). During the movement of the first drive tendon (51) towards the proximal or distal end, the transmission ring (53) can abut against the two side walls of the limiting groove (4c) respectively.

4. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 3, characterized in that, The endoscope connector (1) includes a connector body (11); the outer peripheral wall of the connector body (11) is provided with a second annular step (11c), the second annular step (11c) having a second step surface (11c1) facing the distal end; the fixing ring (21) is sleeved on the outer peripheral wall corresponding to the second annular step (11c) and abuts against the second step surface (11c1) at the proximal end face; the sliding ring (23) can abut against the second step surface (11c1) at the proximal end face during the movement towards the proximal end; and / or, The endoscope connector (1) includes a connector body (11); the outer peripheral wall of the connector body (11) is provided with a second annular step (11c), the second annular step (11c) having a second step surface (11c1) facing the distal end; the outer side wall of the guide tube (4) is provided with a first path groove (4b) extending along the length direction, the outer peripheral wall of the connector body (11) is provided with two or more second path grooves (11d) extending along the axial direction on the side of the second step surface (11c1) near the proximal end, the distal end face of the guide tube (4) abuts against the proximal end face of the connector body (11), one of the second path grooves (11d) and the first path groove (4b) are connected; the distal end of the second driving tendon (52) is fixed to the proximal end face of the sliding ring (23), each of the second driving tendons (52) is respectively engaged in each of the second path grooves (11d), the first driving tendon (51) and one of the second driving tendons (52) are respectively engaged in the first path groove (4b); and / or, The driving component (6) includes a driving handle (61) and a push-pull rod (62); the push-pull rod (62) is slidably disposed on the driving handle (61), and the proximal end of the first driving tendon (51) is connected to the push-pull rod (62). Pulling or pushing the push-pull rod (62) can pull or push the first driving tendon (51).

5. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to any one of claims 1 to 4, characterized in that, The sliding sleeve (2) also includes a stop (24); The stop (24) is located at the distal end of the sliding ring (23), and the proximal end face of the stop (24) abuts against the distal end face of the endoscope connector (1). The stop (24) is made of flexible material. When the sliding ring (23) moves proximally, it can drive the stop (24) away from the distal end face of the endoscope connector (1).

6. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 5, characterized in that, The stop portion (24) includes a plurality of stop pieces (241); the stop pieces (241) are fan-shaped, and the plurality of stop pieces (241) are distributed at intervals along the circumference of the sliding ring (23) and share a common center; and / or, The proximal end face of the stop (24) and the distal end face of the endoscope connector (1) are connected by a plurality of fixing points; the fixing points are configured to break when the tension on the stop (24) exceeds a preset tension threshold, so that the stop (24) leaves the distal end face of the endoscope connector (1).

7. The intragastric weight-loss device utilizing an endoscopic transparent cap to release a balloon according to any one of claims 1 to 4, characterized in that, The balloon component (3) includes an air balloon (31), a liquid balloon (32), and a stent (33) connected sequentially in a generally first direction. Both the airbag (31) and the liquid bag (32) have the first medium interface (35), and there are two first medium channels (4a) and two second medium interfaces (63). The two first medium interfaces (35) are connected through the two first medium channels (4a) and the two second medium interfaces (63). The support (33) is made of shape memory alloy material and has a food channel (3c) that extends approximately along the first direction.

8. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 7, characterized in that, The endoscope connector (1) includes a connector body (11) and two third media interfaces (12). The outer peripheral wall of the connector body (11) is provided with a first annular step (11a), the first annular step (11a) has a first step surface (11a1) facing the far end, the two third media interfaces (12) are provided on the first step surface (11a1), and the connector body (11) is provided with two second media channels (11b) on the side of the first step surface (11a1) near the proximal end. The compressed balloon component (3) is located on the side of the first stepped surface (11a1) near the distal end. The inlet ends of the two third media interfaces (12) are respectively connected to the two second media channels (11b) and the outlet ends are respectively connected to the two first media interfaces (35). The distal end face of the guide tube (4) abuts against the proximal end face of the connector body (11). The two second media channels (11b) are respectively connected to the two first media channels (4a).

9. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 8, characterized in that, The balloon component (3) also includes a connector (34), and the endoscope connector (1) also includes a restraint post (13). The airbag (31) and the liquid bag (32) are connected by the connector (34), the constraint post (13) is provided on the first step surface (11a1) and extends along the axial direction of the connector body (11), and the connector (34) is made of flexible material. The compressed balloon component (3) is arranged circumferentially around the connector body (11), the connector (34) is constrained to the inside of the constraining post (13), and the two third media interfaces (12) are respectively located on both sides of the constraining post (13) circumferentially around the connector body (11).

10. The intragastric weight loss device using an endoscopic transparent cap to release a balloon according to claim 7, characterized in that, The outer peripheral wall of the bracket (33) is provided with multiple rings of fixing spikes (331); the multiple rings of fixing spikes (331) are arranged at intervals along the first direction; and / or, The liquid sac (32) has a plurality of notches (3a) at one end near the support (33); the plurality of notches (3a) are spaced apart circumferentially along the liquid sac (32), and the notches (3a) communicate with the food channel (3c); and / or, At least one of the air bladder (31) and the liquid bladder (32) has a plurality of placement slots (3b) on its outer wall; the placement slots (3b) store sustained-release drugs.

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