Hepatopancreatic ampulla metabolism device

Abstract

The utility model provides a hepatopancreatic ampulla metabolism device which comprises a main drainage tube, a branch drainage tube is connected to the main drainage tube, a medicine release mechanism is arranged at the position, close to the inlet end, of the tube wall of the main drainage tube, and protrusions are arranged on the tube wall of the main drainage tube. The main drainage tube and the branch drainage tube are arranged to drain bile and pancreatic juice at the hepatopancreatic ampulla, discharge blocking of the bile and the pancreatic juice caused by abnormal metabolism at the hepatopancreatic ampulla is avoided, the medicine release mechanism is arranged to release medicine to the hepatopancreatic ampulla, inflammation caused by abnormal metabolism at the hepatopancreatic ampulla is solved, and the hepatopancreatic ampulla is prevented from being damaged by abnormal metabolism at the hepatopancreatic ampulla. And by arranging the bulges, bile and pancreatic juice excreted by drainage are uniformly mixed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a hepatopancreatic ampulla metabolic device. Background Technology

[0002] The hepatopancreatic ampulla, also known as Vater's ampulla, is a slightly enlarged common bile duct (the major duodenal papilla) formed by the common bile duct joining the pancreatic duct in the posteromedial wall of the middle part of the descending duodenum.

[0003] The hepatopancreatic ampulla, a unique structure formed by the confluence of the common bile duct and pancreatic duct on the posteromedial wall of the descending part of the duodenum, plays a crucial role in human digestion. Bile and pancreatic juice enter the duodenum through the hepatopancreatic ampulla to participate in the digestion of food.

[0004] However, various factors can lead to metabolic abnormalities in the hepatopancreatic ampulla, such as gallstones, inflammation, and tumors. These conditions can cause obstruction and uneven mixing of bile and pancreatic juice, resulting in serious digestive system diseases such as cholecystitis and pancreatitis, causing significant suffering and health risks to patients. Currently, clinical treatments for these problems have limitations, and there is a lack of specialized devices that can effectively regulate and improve the metabolic function of the hepatopancreatic ampulla. Utility Model Content

[0005] The purpose of this invention is to provide a hepatopancreatic ampulla metabolic device to solve the above-mentioned technical problems.

[0006] This utility model provides a hepatopancreatic ampulla metabolic device, including a main drainage tube, a branch drainage tube connected to the main drainage tube, a drug release mechanism provided on the wall of the main drainage tube near the inlet end, and a protrusion provided on the wall of the main drainage tube.

[0007] Furthermore, the inlet end of the main drainage tube is provided with a funnel-shaped drainage port.

[0008] Furthermore, the drug release mechanism includes a drug storage chamber and a release channel, the release channel being connected to the drug storage chamber, the drug storage chamber being disposed on the inner wall of the main drainage tube near the inlet end, and the release channel being disposed on the inner wall of the drainage port.

[0009] Furthermore, a porous support is provided at the release port of the release channel, and the release port of the release channel is filled with polyethylene glycol microgel covering the outside of the porous support.

[0010] Furthermore, the protrusion is wavy and is disposed on the pipe wall between the main drainage pipe and the branch drainage pipe.

[0011] Furthermore, a heating wire is provided inside the main drainage pipe near the inlet end, and the heating wire is covered with an insulating and heat-conducting layer.

[0012] Furthermore, a filter screen is provided at the inlet end of the branch drainage tube.

[0013] Furthermore, a one-way valve is provided on the wall of the branch drainage tube.

[0014] Furthermore, a first fixing arm is provided on the outer wall of the main drainage tube, and a second fixing arm is provided on the outer wall of the branch drainage tube. Both the first fixing arm and the second fixing arm are made of shape memory alloy material.

[0015] Furthermore, an annular airbag is provided on the side of the branch drainage tube away from the inlet end of the main drainage tube, and a gas channel is provided on the annular airbag.

[0016] This invention uses a main drainage tube and branch drainage tubes to drain bile and pancreatic juice from the ampulla of Vater, avoiding obstruction of bile and pancreatic juice excretion caused by metabolic abnormalities in the ampulla of Vater. A drug release mechanism is used to release drugs into the ampulla of Vater to resolve inflammation caused by metabolic abnormalities in the ampulla of Vater. A protrusion is used to evenly mix the drained bile and pancreatic juice. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a diagram of the internal structure of the present invention;

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1-Main drainage tube, 11-Drainage port, 12-Protrusion, 13-Heating wire, 2-Drug release mechanism, 21-Drug storage chamber, 22-Release channel, 3-Branch drainage tube, 31-Filter screen, 32-One-way valve, 4-Annular airbag, 41-Gas channel, 51-First fixing arm, 52-Second fixing arm; Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown:

[0027] A hepatopancreatic ampulla metabolic device includes a main drainage tube 1, a branch drainage tube 3 connected to the main drainage tube 1, a drug release mechanism provided on the wall of the main drainage tube 1 near the inlet end, and a protrusion 12 provided on the wall of the main drainage tube 1.

[0028] The main drainage tube 1 has a funnel-shaped drainage port 11 at its inlet end, with a diameter larger than the average diameter of the bile duct and pancreatic duct at the ampulla of Vater, which facilitates better collection of bile and pancreatic juice. The main drainage tube 1 and the branch drainage tubes 3 are made of medical-grade silicone material, which ensures both strength and flexibility within the body to adapt to internal physiological activities.

[0029] The drug release mechanism includes a drug storage chamber 21 and a release channel 22. The release channel 22 is connected to the drug storage chamber 21. The drug storage chamber 21 is located on the pipe wall inside the main drainage pipe 1 near the inlet end, and the release channel 22 is located on the inner wall of the drainage port 11.

[0030] The drug storage chamber 21 can be pre-filled with various drugs, such as anti-inflammatory drugs, stone-dissolving drugs, and drugs that promote bile and pancreatic juice secretion.

[0031] In this embodiment, the drug in the drug storage chamber 21 is pre-filled. During the production process, the drug is filled into the drug storage chamber 21 under strict aseptic conditions. This method ensures the purity and quality of the drug and allows for precise control of the drug dosage.

[0032] The drug storage chamber 21 can also be designed with a filling inlet on its side wall, which penetrates the wall of the main drainage tube 1. When medication needs to be added, a syringe or other medical device is used to inject the medication into the drug storage chamber 21 through the filling inlet. A sealing device, such as a screw-on cap or a medical rubber stopper, can be designed at the filling inlet to prevent medication leakage and the entry of external contaminants after medication is added.

[0033] A porous support is provided at the release port of the release channel 22, and the release port of the release channel 22 is filled with polyethylene glycol microgel that covers the outside of the porous support.

[0034] Polyethylene glycol microgels contain a large number of hydrophilic groups in their molecular structure, which have good compatibility with the aqueous components in bile and pancreatic juice, and can be dispersed or dissolved to a certain extent.

[0035] Under normal conditions, polyethylene glycol microgels are densely packed, blocking the release port and preventing drug flow. When the polyethylene glycol microgels come into contact with bile and pancreatic juice, they dissolve, thereby opening the release port of release channel 22 and allowing the drug to be released.

[0036] The protrusion 12 is wavy and is located on the wall between the main drainage tube 1 and the branch drainage tube 3. It can simulate the mixing process under normal physiological conditions and help improve the metabolic efficiency of digestive juice.

[0037] The wavy protrusions 12 are continuous, wave-like structures distributed on the inner wall of the main drainage tube 1. They allow bile and pancreatic juice to flow along the undulating path of the waves. This structure can generate periodic disturbances in the fluid, allowing bile and pancreatic juice to flow alternately between the crests and troughs, thereby promoting mixing.

[0038] When the liquid flows through the wavy protrusion 12, the flow velocity is relatively fast at the crests and slows down at the troughs. This causes convection and diffusion between bile and pancreatic juice in different velocity zones. Simultaneously, the wave shape causes some displacement of the liquid perpendicular to the flow direction, further enhancing the mixing between the two liquids.

[0039] The protrusion 12 can also be configured as a conical structure. Multiple conical protrusions 12 are arranged on the inner wall of the main drainage tube 1. The conical protrusions 12 can be arranged in a matrix or a spiral arrangement, and the tip of the conical protrusion 12 points towards the central axis of the main drainage tube 1.

[0040] The protrusion 12 can also be configured as a turbine blade type, with the turbine blade type protrusion 12 distributed on the inner wall of the main drainage pipe 1. The blades have a certain tilt angle and can be arranged in a single row or multiple rows.

[0041] By setting up protrusion 12 to mix bile and pancreatic juice within the main drainage tube 1, the physiological process can be simulated. To a certain extent, it can stimulate the secretion of gastrointestinal nerves and hormones, such as cholecystokinin and secretin. The appropriate secretion of these neurotransmitters and hormones helps maintain normal peristalsis and digestive juice secretion in the gastrointestinal tract, and may play a positive guiding role in the recovery of digestive system function, especially in the disease recovery stage.

[0042] A heating wire 13 is embedded in the inner wall of the main drainage pipe 1 near the inlet end, and the heating wire 13 is covered with an insulating and heat-conducting layer.

[0043] The heating wire 13 can be spirally distributed along the length of the main drainage tube 1 to ensure uniform heat transfer.

[0044] The heating wire 13 is wrapped with a layer of polyimide film or other insulating and thermally conductive material, which can prevent leakage and effectively transfer heat to the liquid inside the tube.

[0045] The heating wire 13 achieves precise temperature control through an external temperature controller and a temperature sensor installed on the wall of the main drainage tube 1. The temperature sensor monitors the temperature inside the drainage tube in real time and feeds the signal back to the temperature controller. When the temperature is lower than the set value, the temperature controller automatically turns on the heating wire 13 circuit to raise the temperature; when the temperature reaches or exceeds the set value, the heating wire 13 circuit is turned off to stop heating, thus keeping the temperature inside the main drainage tube 1 within a suitable range for digestive enzyme activity.

[0046] By setting an electrically controlled heating wire 13, the temperature of bile and pancreatic juice in the main drainage tube 1 is maintained within a suitable range close to physiological body temperature, ensuring the activity of digestive enzymes and facilitating subsequent metabolic processes.

[0047] The inlet end of the branch drainage tube 3 is equipped with a filter screen 31 to prevent large particles from clogging the drainage tube, while allowing inflammatory exudate, small stone fragments, etc. to pass through.

[0048] The branch drainage tube 3 is equipped with a one-way valve 32 on its wall to ensure that the liquid can only flow to the main drainage tube 1 and prevent backflow.

[0049] Small drainage holes can be made on the inlet end of branch drainage pipe 3 to increase the drainage area.

[0050] A first fixing arm 51 is provided on the outer wall of the main drainage tube 1, and a second fixing arm 52 is provided on the outer wall of the branch drainage tube 3. Both the first fixing arm 51 and the second fixing arm 52 are made of nickel-titanium shape memory alloy material.

[0051] The interior of the first fixed arm 51 and the second fixed arm 52 is a ring-shaped support made of nickel-titanium shape memory alloy. The outer side of the ring-shaped support is provided with an elastic protective layer made of polyurethane material. Multiple rubber feet can also be provided outside the elastic protective layer to increase cushioning.

[0052] The first fixation arm 51 and the second fixation arm 52 are pre-shaped for easy insertion, for example, in a straight position close to the outer wall of the main drainage tube 1 or the branch drainage tube 3. During insertion, the first fixation arm 51 and the second fixation arm 52 are subjected to external forces such as pressure and friction from surrounding tissues. The superelasticity of the nickel-titanium shape memory alloy material allows the fixation arms to adapt to these external forces to a certain extent. After entering the human body, because the body temperature is higher than the transition temperature of the nickel-titanium shape memory alloy (usually around 25-30°C), the first fixation arm 51 and the second fixation arm 52 will begin to return to the pre-set shape, such as bending or unfolding at a certain angle, thereby better conforming to the anatomical structure around the hepatopancreatic ampulla or fixing in a specific position.

[0053] When it is necessary to remove this device, a cryogenic liquid such as liquid nitrogen or cooled saline solution can be sprayed or poured around the first fixing arm 51 and the second fixing arm 52 to lower the temperature of the first fixing arm 51 and the second fixing arm 52 below their transition temperature. At this time, the first fixing arm 51 and the second fixing arm 52 will lose their shape memory effect and become soft, and can be easily straightened or reshaped, thus facilitating removal from the body.

[0054] A ring-shaped airbag 4 is provided on the side of the branch drainage tube 3 away from the inlet end of the main drainage tube 1, and a gas channel 41 is provided on the ring-shaped airbag 4.

[0055] The annular airbag 4 is located on the outer side of the middle part of the main drainage tube 1. After it is inserted into place, it can be inflated through the air supply device and the gas channel 41 to make the main drainage tube 1 fit tightly against the bile duct or pancreatic duct wall around the ampulla of Vater, preventing displacement and fixing its position.

[0056] The device also includes a controller connected to a display screen, as well as a pressure sensor and a flow sensor. The pressure sensor is installed at the drainage port 11, and the flow sensor is installed inside the main drainage tube 1. The pressure sensor and the flow sensor are electrically connected to the controller. The pressure data at the ampulla of Vater and the flow rate data of the fluid drained from the main drainage tube 1 are displayed on the display screen.

[0057] An abnormal increase in pressure or flow rate may indicate a possible obstruction.

[0058] The temperature controller and temperature sensor are connected to the controller. The display screen has control buttons for setting and adjusting the heating temperature of the heating wire 13. The temperature data from the temperature sensor is displayed on the screen.

[0059] The outlet end of the main drainage pipe 1 can be connected to a collection device or a return device.

[0060] The collection device is equipped with a component analysis sensor, which analyzes components such as bile acids, pancreatic enzymes, and inflammatory factors in the drainage fluid to understand the metabolic state and degree of lesions in the hepatopancreatic ampulla. The component analysis sensor is connected to the controller, and the data detected by the sensor is displayed on the screen.

[0061] The main drainage tube 1 is also equipped with a micro positioning chip, which is connected to the controller. The micro positioning chip monitors the position of the metabolizer in real time to ensure that it is accurately placed in the predetermined position, so that the branch drainage tube 3 can effectively cover the area around the ampulla of Vater of Hepatopancreas.

[0062] The working process of this device is as follows:

[0063] 1. Preparation before use

[0064] (1) Based on the patient’s clinical diagnosis, including imaging examinations (such as CT, MRI, endoscopic ultrasound, etc.) and laboratory examinations (such as liver function, pancreatic enzyme levels, etc.), determine the type and extent of the lesion in the hepatopancreatic ampulla.

[0065] (2) Before the operation, the hepatopancreatic ampulla metabolizer is strictly disinfected. At the same time, according to the patient's condition, the appropriate medication is filled into the drug storage chamber 21, and the patency and control precision of the release channel 22 are checked.

[0066] 2. Implantation process

[0067] Through endoscopic retrograde cholangiopancreatography (ERCP) or other suitable minimally invasive surgical methods, the inlet end of the main drainage tube 1 is slowly guided to the inlet of the bile duct or pancreatic duct near the ampulla of Vater. The branch drainage tube 3 is placed at the small branches of the bile duct or pancreatic duct where inflammation is more severe or fluid retention is significant. This allows for more efficient collection of bile and pancreatic juice, and more targeted treatment of local lesions.

[0068] After the main drainage tube 1 and the branch drainage tube 3 are in place, the annular airbag 4 is inflated, causing it to expand and fit tightly against the wall of the bile duct or pancreatic duct. At the same time, the first fixing arm 51 and the second fixing arm 52 automatically adjust their shape under the action of body temperature, firmly grasping the surrounding tissues. The elastic protective layer isolates the arc-shaped support made of the internal nickel-titanium shape memory alloy material from contact with the surrounding tissues or organs, effectively protecting the surrounding tissues and ensuring the stable fixation of the metabolic device in the body.

[0069] 3. Work Process

[0070] Once the hepatopancreatic ampulla of Vater metabolizer is implanted in the designated location, the main drainage tube 1 and branch drainage tubes 3 begin to function. The branch drainage tubes 3, utilizing their porous structure and widespread distribution, collect bile and pancreatic juice from around the hepatopancreatic ampulla into the main drainage tube 1. During this process, a one-way valve 32 effectively prevents backflow of fluid. Simultaneously, the protrusions 12 within the main drainage tube 1 promote the uniform mixing of bile and pancreatic juice. When fluid from the branch drainage tubes 3 flows into the main drainage tube 1, the turbulence generated by the mixing of fluids within the main drainage tube 1 causes the fluid from the branch drainage tubes 3 to mix rapidly with the fluid in the main drainage tube 1.

[0071] The polyethylene glycol microgel at the release port of release channel 22 dissolves, and release channel 22 releases drugs as needed to treat lesions in the ampulla of Vater of the liver and pancreas and improve the local metabolic environment.

[0072] The drug is released at the drainage port 11, but during the drainage process, bile and pancreatic juice reflux. The bile and pancreatic juice at the drainage port 11, including the drug, reflux back into the hepatopancreatic ampulla. This reflux can carry the drug to the site of inflammation and exert a therapeutic effect.

[0073] When the branch drainage tube 3 collects the surrounding fluid, it will generate a slight negative pressure or change the direction of fluid flow locally, so that the drug in the main drainage tube 1 can be drawn into the branch drainage tube 3 along with the fluid, and then reach the inflammatory area around the ampulla of Vater.

[0074] During the drainage process, pressure and flow sensors monitor various indicators in the main drainage tube 1 in real time and feed them back to the display screen, enabling medical staff to adjust treatment parameters according to the patient's real-time condition, ensuring the effectiveness and safety of the treatment.

[0075] 4. Removal process

[0076] When the patient's condition improves and the use of the hepatopancreatic ampulla metabolizer is no longer necessary, the annular balloon 4 is first deflated via endoscopy or surgery, and then the entire metabolizer is carefully removed from the body. The removed metabolizer is then examined and evaluated to provide a basis for future improvements.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hepatopancreatic ampulla metabolic device, characterized in that... It includes a main drainage tube, to which branch drainage tubes are connected. A drug release mechanism is provided on the wall of the main drainage tube near the inlet end, and a protrusion is provided on the wall of the main drainage tube.

2. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, The inlet end of the main drainage tube is provided with a funnel-shaped drainage port.

3. The hepatopancreatic ampulla metabolic device according to claim 2, characterized in that, The drug release mechanism includes a drug storage chamber and a release channel. The release channel is connected to the drug storage chamber. The drug storage chamber is located on the inner wall of the main drainage tube near the inlet end. The release channel is located on the inner wall of the drainage port.

4. The hepatopancreatic ampulla metabolic device according to claim 3, characterized in that, The release channel has a porous support at its release port, and the release port is filled with polyethylene glycol microgel covering the outside of the porous support.

5. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, The protrusion is wavy and is located on the pipe wall between the main drainage pipe and the branch drainage pipe.

6. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, A heating wire is installed inside the main drainage pipe near the inlet end, and the heating wire is covered with an insulating and heat-conducting layer.

7. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, A filter screen is installed at the inlet end of the branch drainage tube.

8. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, The branch drainage tube is equipped with a one-way valve on its wall.

9. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, The main drainage tube is provided with a first fixing arm on its outer wall, and the branch drainage tube is provided with a second fixing arm on its outer wall. Both the first fixing arm and the second fixing arm are made of shape memory alloy material.

10. The hepatopancreatic ampulla metabolic device according to claim 1, characterized in that, An annular airbag is provided on the side of the branch drainage tube away from the inlet end of the main drainage tube, and a gas channel is provided on the annular airbag.

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