Anti-reflux and anti-aspiration 3, 3-dimethyl-4-pentenoic acid flow blocking device

Abstract

The invention relates to a 3, 3-dimethyl-4-pentenoid flow choking device capable of preventing reflux and aspiration, and belongs to the technical field of medical instruments, the 3, 3-dimethyl-4-pentenoid flow choking device is characterized in that a first flow choking structure and a second flow choking structure which are respectively arranged in the stomach and the esophagus are matched to prevent reflux of food residues and gastric juice, and the first flow choking structure and the second flow choking structure are respectively positioned on two sides of a 3, 3-dimethyl-4-pentenoid; two-stage plugging is achieved, so that even if the first flow blocking structure shifts, the second flow blocking structure can continue to prevent food residues and gastric juice from flowing back, the problem that after the first flow blocking structure shifts, the food residues and the gastric juice flow into the esophagus from a pentenoid opening continues to flow back is solved, and the plugging effect is improved; meanwhile, the micro differential pressure valve is arranged between the first flow choking structure and the second flow choking structure, so that the situation that the pentenoid opening is opened by the first flow choking structure and is damaged due to the fact that the force applied by food residues and gastric juice to the first flow choking structure is too large is avoided.

Description

Technical Field

[0001] The invention relates to a cardia flow blocking device for preventing backflow and misabsorption, belonging to the technical field of medical devices. Background Art

[0002] Reflux aspiration is a common serious adverse event during anesthesia and intubation in surgical patients. In order to reduce the incidence, routine fasting for 4-6 hours before surgery is often required. For emergency patients with a full stomach, priority should be given to gastric tube drainage, rapid programmed induction, cricoid cartilage compression and other operations, which are often complicated and still carry great risks. Even if the anesthesia and intubation process goes smoothly, the patient may still have reflux aspiration after the endotracheal tube is removed after surgery. Severe cases require re-intubation or even transfer to the ICU for treatment.

[0003] Therefore, most of the time, food residues and gastric juice are prevented from reflux by inserting an intragastric balloon to block the epigastric opening. However, the intragastric balloon is easily displaced, resulting in poor blocking effect on the epigastric opening, and food residues and gastric juice still reflux into the patient's mouth. Summary of the invention

[0004] The purpose of the present invention is to provide a cardia flow blocking device for preventing backflow and misaspiration to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solution: a cardia flow blocking device for preventing reflux and misabsorption, the cardia flow blocking device comprising:

[0006] A connecting tube body is used to extend into the stomach through the oral cavity;

[0007] The first flow-blocking structure includes a first balloon body arranged at the end of the connecting tube body extending into the stomach, the first balloon body being gathered at the end of the connecting tube body and configured to be expanded after being inflated to prevent food residues in the stomach from flowing back toward the esophagus through the cardia;

[0008] A second flow-blocking structure includes a second balloon body disposed on the connecting tube body, the second balloon body being gathered on the tube wall of the connecting tube body and configured to prevent gastric fluid flowing into the esophagus from flowing back toward the oral cavity at the esophagus near the cardia after being inflated;

[0009] A micro pressure differential valve is arranged between the first flow-blocking structure and the second flow-blocking structure, and the micro pressure differential valve is configured to be turned on when the pressure applied to the micro pressure differential valve by the first flow-blocking structure is greater than a set value, so that part of the gas in the first balloon is transported into the second balloon to completely block the esophagus.

[0010] Furthermore, the first flow-blocking structure also includes a memory metal umbrella frame connected to the connecting tube body at one end and a flow-blocking net arranged at the other end of the memory metal umbrella frame, the first capsule is connected to the inner side of the memory metal umbrella frame in the shape of an umbrella cloth, and the memory metal umbrella frame is configured to unfold after reaching the stomach.

[0011] Furthermore, the first flow-blocking structure also includes a memory metal umbrella frame connected to the connecting tube body at one end and a flow-blocking net arranged at the other end of the memory metal umbrella frame. The first capsule is spherical and is arranged at the connection between the memory metal umbrella frame and the connecting tube body. After the first capsule is inflated, a portion of it extends to the outside of the memory metal umbrella frame.

[0012] Furthermore, the first flow-blocking structure also includes a shrinking sleeve arranged on the outside of the memory metal umbrella frame and a driving member connected to the shrinking sleeve and located in the connecting tube body. Under the action of the driving member, the shrinking sleeve is configured to switch between a first state of shrinking the memory metal umbrella frame and a second state of unfolding the memory metal umbrella frame.

[0013] Furthermore, the driving member includes an elastic member connected between the connecting tube body and the tightening sleeve and a traction wire connected to the tightening sleeve and extending to the other end of the connecting tube body, the traction wire is used to drive the tightening sleeve to switch from the second state to the first state, and the elastic member is always in a compressed state.

[0014] Furthermore, the first balloon body is a plastic balloon contracted in the end of the connecting tube body, and the plastic balloon is configured to extend out of the end of the connecting tube body and expand after being inflated, and the plastic balloon is adapted to the shape of the cardia facing the stomach side after expansion.

[0015] Furthermore, a plurality of the second sacs are provided, and two adjacent second sacs are connected via the micro differential pressure valve.

[0016] Furthermore, the setting value of the micro differential pressure valve is arranged in a step-like manner from close to the first capsule toward away from the first capsule.

[0017] Furthermore, the set value is set in a decreasing trend from approaching the first capsule to moving away from the first capsule.

[0018] Furthermore, the cardia flow blocking device for preventing reflux and aspiration also includes a sleeve that is sleeved outside the connecting tube body, which is used to shrink the second balloon onto the outer wall of the connecting tube body and can be pulled out toward the oral cavity after the connecting tube body is extended into the stomach so that the second balloon can be inflated and expanded.

[0019] The beneficial effects of the present invention are as follows: the present application prevents the reflux of food residues and gastric juice by setting a first flow-blocking structure and a second flow-blocking structure which are respectively placed in the stomach and the esophagus; since the first flow-blocking structure and the second flow-blocking structure are respectively located on both sides of the cardia, a two-stage blocking is achieved, so that even if the first flow-blocking structure is displaced, the second flow-blocking structure can continue to prevent the reflux of food residues and gastric juice, thereby solving the problem of continued reflux of food residues and gastric juice flowing into the esophagus through the cardia after the first flow-blocking structure is displaced, thereby improving the blocking effect; at the same time, a micro pressure differential valve is set between the first flow-blocking structure and the second flow-blocking structure, thereby preventing the excessive force exerted on the first flow-blocking structure by the food residues and gastric juice, which causes the first flow-blocking structure to stretch the cardia and damage the cardia.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of a cardia flow blocking device for preventing backflow and misaspiration shown in an embodiment of the present application.

[0022] Figure 2 This is a schematic structural diagram of a cardiac orifice flow blocking device for preventing backflow and misaspiration shown in another embodiment of the present application.

[0023] Figure 3 This is a schematic structural diagram of a cardiac orifice flow blocking device for preventing backflow and misaspiration shown in another embodiment of the present application. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figure 1 , a cardia blocking device for preventing reflux and aspiration (hereinafter referred to as "cardia blocking device") shown in an embodiment of the present application, the cardia blocking device includes a connecting tube body 110, a first blocking structure 130 and a second blocking structure 120. After the cardia blocking device is placed in the patient's stomach, the first blocking structure 130 and the second blocking structure 120 are inflated to prevent food residues and gastric juice from refluxing during the treatment of emergency full stomach patients. Among them, the existing technology of traction instruments will not be described in detail here.

[0028] The connecting tube body 110 is used to extend into the stomach through the oral cavity; a 30-50cm scale mark is set at the end of the connecting tube body 110, and a positioning ring is set on it. After the cardia flow blocking device is inserted into the specified position, the positioning ring is slid to the scale close to the patient's mouth to locate the insertion depth to avoid displacement of the cardia flow blocking device during treatment, such as the second flow blocking structure 120 shifting into the gastric cavity, etc., which causes flow blocking failure.

[0029] In addition, the connecting tube body 110 is also provided with an air-filling pipeline (not shown) connected to the first flow-blocking structure 130, and the end of the air-filling pipeline is provided with a first vent hole and a first rubber for closing the first vent hole. In detail, the first vent hole is made according to the principle of reverse sealing of air pressure. When the air-filling device inflates the first flow-blocking structure 130 through the first vent hole, the first rubber pad will be opened by the gas pressure. When the inflation stops, the gas in the first flow-blocking structure 130 will exert outward pressure on the first rubber pad to close the first vent hole. It is a conventional structure and will not be elaborated in detail here.

[0030] The first flow-blocking structure 130 includes a first balloon 132 disposed at the end of the connecting tube 110 extending into the stomach. The first balloon 132 is gathered at the end of the connecting tube 110 and is configured to be expanded after inflation to prevent food residues in the stomach from refluxing toward the esophagus through the cardia.

[0031] The second flow-blocking structure 120 includes a second balloon 122 disposed on the connecting tube 110. The second balloon 122 is gathered on the tube wall of the connecting tube 110 and is configured to prevent gastric fluid flowing into the esophagus from flowing back toward the oral cavity near the cardia after inflation.

[0032] Among them, a micro pressure differential valve (not shown) is arranged between the first flow-blocking structure 130 and the second flow-blocking structure 120, and the micro pressure differential valve is configured to be turned on when the pressure applied to the micro pressure differential valve by the first flow-blocking structure 130 is greater than a set value, so that part of the gas in the first balloon 132 is transported to the second balloon 122 to completely block the esophagus.

[0033] In this embodiment, the first flow-blocking structure 130 also includes a memory metal umbrella frame connected to the connecting tube body 110 at one end and a flow-blocking net 136 arranged at the other end of the memory metal umbrella frame. The first capsule 132 is connected to the inner side of the memory metal umbrella frame in the shape of an umbrella cloth, and the memory metal umbrella frame is configured to unfold after reaching the stomach. During the process of the cardia flow-blocking device extending into the stomach, the memory metal umbrella frame is bound to the connecting tube body 110. After reaching the designated position and unbinding the memory metal umbrella frame, the memory metal umbrella frame will automatically unfold into an umbrella-opened state. The memory metal umbrella frame includes a plurality of umbrella ribs 134 arranged at intervals along the circumference of the connecting tube body 110. After being inflated, the first capsule 132 unfolds on both sides of the inner and outer sides of the umbrella ribs 134 to form an umbrella cloth-opened state. The part unfolded to the outside of the umbrella ribs 134 is flush with the outer surface of the umbrella ribs 134, ensuring that the first flow-blocking structure 130 fits the stomach wall to prevent gastric fluid reflux. The blocking net 136 is deployed at the end of the umbrella rib 134 to block the food residue. The number of the umbrella rib 134 can be set according to the demand and is not specifically limited here.

[0034] In this embodiment, the first flow-blocking structure 130 also includes a constricting sleeve 138 set on the outside of the memory metal umbrella frame and a driving member (not shown) connected to the constricting sleeve 138 and located in the connecting tube body 110. Under the action of the driving member, the constricting sleeve 138 is configured to switch between the first state of constricting the memory metal umbrella frame and the second state of unfolding the memory metal umbrella frame. Among them, the driving member includes an elastic member connected between the connecting tube body 110 and the constricting sleeve 138 and a traction wire connected to the constricting sleeve 138 and extending to the other end of the connecting tube body 110. The traction wire is used to drive the constricting sleeve 138 to switch from the second state to the first state, and the elastic member is always in a compressed state. The elastic member is a spring. The driving member is set to control the constricting sleeve 138 to apply a constricting force to the memory metal umbrella frame or release the constricting force applied to the memory metal umbrella frame to switch the first state and the second state of the memory metal umbrella frame. The driving member is a traction wire and a spring, which are all prior art and will not be described in detail here.

[0035] Please refer to Figure 2In another embodiment, the first flow-blocking structure 130 further includes a memory metal umbrella frame connected to the connecting tube body 110 at one end and a flow-blocking net 136 disposed at the other end of the memory metal umbrella frame. The first capsule 132 is spherical and disposed at the connection between the memory metal umbrella frame and the connecting tube body 110. After being inflated, the first capsule 132 partially extends to the outside of the memory metal umbrella frame. The spherical first capsule 132 is mainly distributed near the connection between the memory metal umbrella frame and the connecting tube body 110, and its end can be supported on the flow-blocking net 136. Such a configuration can reduce the volume of the first capsule 132 and save costs.

[0036] Please refer to Figure 3 In another embodiment, the first bladder 132 is a plastic airbag gathered in the end of the connecting tube 110. The plastic airbag is configured to extend out of the end of the connecting tube 110 after being inflated and unfold. After the plastic airbag is unfolded, it is adapted to the shape of the cardia facing the stomach. The plastic airbag is bowl-shaped after being inflated and can be accommodated in the connecting tube 110 before being inflated. This configuration simplifies the first flow-blocking structure 130 and facilitates mass production.

[0037] In one embodiment, a plurality of second bladders 122 are provided, and two adjacent second bladders 122 are connected by a micro differential pressure valve. The plurality of second bladders 122 are arranged at intervals on the connecting tube 110, and are sequentially connected by the micro differential pressure valves, thereby achieving multi-stage pressure relief, preventing the first bladder 132 from damaging the cardia, and preventing the second bladder 122 from expanding too much and damaging the esophagus. The number of second bladders 122 can be set according to demand, and is not specifically limited here.

[0038] In other embodiments, the second flow-blocking structure 120 is provided with a plurality of them, and two adjacent second flow-blocking structures 120 are connected and fixed by a detachable connection, so as to facilitate adjusting the number of the second capsules 122 according to the patient's physical condition. Generally speaking, ordinary patients can use one second capsule 122, and patients with high risk need to be provided with a plurality of second capsules 122. Specifically, the connecting tube body 110 can be provided as a connecting sub-tube with multiple sections of threaded connection, and a threaded connection structure, such as a threaded ring, is provided at the end of the connecting sub-tube, so that the connecting sub-tube is easy to disassemble and connect. The second capsule 122 is provided on the connecting sub-tube, and two inflatable hoses are provided inside it to facilitate communication with other second capsules 122. The ends of the inflatable hoses are provided with a threaded connection structure, and a micro pressure differential valve is provided on one of the inflatable hoses to ensure that the micro pressure differential valve is connected between the two second capsules 122. A micro pressure relief valve is connected to the threaded connection structure of the inflatable hose of the second capsule 122 at the end that is not connected to other second capsules 122, so as to prevent the second capsule 122 at the end from over-pressure and injuring the patient. In addition, a self-sounding device may be provided on the micro pressure relief valve, and when the micro pressure relief valve releases pressure, the self-sounding device emits a sound or signal to remind doctors to provide timely treatment.

[0039] The setting value of the micro differential pressure valve is set in a step-like manner from close to the first capsule 132 to away from the first capsule 132. Among them, the step-like setting includes two ways of increasing and decreasing. In the present embodiment, the setting value is set in a decreasing trend from close to the first capsule 132 to away from the first capsule 132. Among them, four second capsules 122 are set, and the setting value of the micro differential pressure valve set between the first capsule 132 and the second capsule 122 is 15cmh2o, and the setting values ​​of the remaining micro differential pressure valves are set in sequence according to 12cmh2o, 10cmh2o, and 8cmh2o, respectively. In this way, four levels of pressure relief can be achieved to prevent the first capsule 132 from damaging the cardia. The setting value of the micro differential pressure valve set between the first capsule 132 and the second capsule 122 is the maximum value, which can effectively improve the resistance of the first capsule 132. Of course, the setting value can also be set in an increasing trend from the first capsule 132 to the direction away from the first capsule 132. Such setting can reduce the force on the cardia. It is mainly selected according to the physical condition of the patient. Generally speaking, young people are not specifically limited here.

[0040] In one embodiment, the cardia flow blocking device for preventing reflux and aspiration further includes a sleeve (not shown) sleeved on the outside of the connecting tube body 110, which is used to gather the second balloon 122 on the outer wall of the connecting tube body 110, and after the connecting tube body 110 is inserted into the stomach, it can be pulled out toward the oral cavity so that the second balloon 122 can be inflated and expanded. After the end of the connecting tube body 110 is inserted into the stomach, the sleeve is pulled out by external force to inflate the first balloon 132 and the second balloon 122.

[0041] The present application sets a first flow-blocking structure 130 and a second flow-blocking structure 120 which are respectively placed in the stomach and the esophagus to cooperate in preventing the reflux of food residues and gastric juice. Since the first flow-blocking structure 130 and the second flow-blocking structure 120 are respectively located on both sides of the cardia, a two-level blocking is achieved, so that even if the first flow-blocking structure 130 is displaced, the second flow-blocking structure 120 can continue to prevent the reflux of food residues and gastric juice, thereby solving the problem of continued reflux of food residues and gastric juice flowing into the esophagus through the cardia after the first flow-blocking structure 130 is displaced, thereby improving the blocking effect. At the same time, a micro pressure differential valve is set between the first flow-blocking structure 130 and the second flow-blocking structure 120, thereby preventing the excessive force exerted on the first flow-blocking structure 130 by the food residues and gastric juice, which causes the first flow-blocking structure 130 to stretch the cardia and cause damage to the cardia.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cardia flow blocking device for preventing backflow and misabsorption, characterized in that: The cardia flow blocking device comprises: A connecting tube body is used to extend into the stomach through the oral cavity; The first flow-blocking structure includes a first balloon body arranged at the end of the connecting tube body extending into the stomach, the first balloon body being gathered at the end of the connecting tube body and configured to be expanded after being inflated to prevent food residues in the stomach from flowing back toward the esophagus through the cardia; A second flow-blocking structure includes a second balloon body disposed on the connecting tube body, the second balloon body being gathered on the tube wall of the connecting tube body and configured to prevent gastric fluid flowing into the esophagus from flowing back toward the oral cavity at the esophagus near the cardia after being inflated; A micro pressure differential valve is arranged between the first flow-blocking structure and the second flow-blocking structure, and the micro pressure differential valve is configured to be turned on when the pressure applied to the micro pressure differential valve by the first flow-blocking structure is greater than a set value, so that part of the gas in the first balloon is transported into the second balloon to completely block the esophagus.

2. The cardia flow blocking device for preventing reflux and misabsorption according to claim 1, characterized in that: The first flow-blocking structure also includes a memory metal umbrella frame with one end connected to the connecting tube body and a flow-blocking net arranged at the other end of the memory metal umbrella frame. The first capsule is connected to the inner side of the memory metal umbrella frame in the shape of an umbrella cloth, and the memory metal umbrella frame is configured to unfold after reaching the stomach.

3. The cardia flow blocking device for preventing reflux and misabsorption according to claim 1, characterized in that: The first flow-blocking structure also includes a memory metal umbrella frame with one end connected to the connecting tube body and a flow-blocking net arranged at the other end of the memory metal umbrella frame. The first capsule is spherical and is arranged at the connection between the memory metal umbrella frame and the connecting tube body. After the first capsule is inflated, a portion of it extends to the outside of the memory metal umbrella frame.

4. The cardia flow blocking device for preventing reflux and misabsorption according to claim 2 or 3, characterized in that: The first flow-blocking structure also includes a shrinking sleeve arranged on the outside of the memory metal umbrella frame and a driving member connected to the shrinking sleeve and located in the connecting tube body. Under the action of the driving member, the shrinking sleeve is configured to switch between a first state of shrinking the memory metal umbrella frame and a second state of unfolding the memory metal umbrella frame.

5. The cardia flow blocking device for preventing reflux and misabsorption as claimed in claim 4, characterized in that: The driving member includes an elastic member connected between the connecting tube body and the tightening sleeve and a traction wire connected to the tightening sleeve and extending to the other end of the connecting tube body, the traction wire is used to drive the tightening sleeve to switch from the second state to the first state, and the elastic member is always in a compressed state.

6. The cardia flow blocking device for preventing reflux and misabsorption according to claim 1, characterized in that: The first balloon is a plastic balloon contracted in the end of the connecting tube. The plastic balloon is configured to extend out of the end of the connecting tube and expand after being inflated. After expansion, the plastic balloon adapts to the shape of the cardiac opening facing the stomach.

7. The cardia flow blocking device for preventing reflux and misabsorption according to claim 1, characterized in that: A plurality of the second sacs are provided, and two adjacent second sacs are connected via the micro differential pressure valve.

8. The cardia flow blocking device for preventing reflux and misabsorption according to claim 7, characterized in that: The setting value of the micro differential pressure valve is arranged in a step-like manner from close to the first capsule toward away from the first capsule.

9. The cardia flow blocking device for preventing reflux and misabsorption according to claim 8, characterized in that: The set value is set in a decreasing trend from close to the first capsule to away from the first capsule.

10. The cardia flow blocking device for preventing reflux and misabsorption according to claim 1, characterized in that: The cardia flow blocking device for preventing reflux and aspiration also includes a sleeve sleeved outside the connecting tube body, which is used to shrink the second balloon onto the outer wall of the connecting tube body and can be pulled out toward the oral cavity after the connecting tube body is extended into the stomach so that the second balloon can be inflated and expanded.

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