Three-cavity jejunum nutrient canal

Abstract

The three-cavity jejunum nutrient canal comprises a pressure reduction cavity, and a gastral cavity and an intestinal cavity are formed in the pressure reduction cavity; a micro pump is arranged on the inner wall of the decompression cavity; a pressure-sensitive element patch is arranged at the end of the pressure reduction cavity, a negative pressure suction device is arranged at the end, away from the pressure-sensitive element patch, of the pressure reduction cavity, and the pressure-sensitive element patch is electrically connected with the negative pressure suction device. The ends, close to the negative pressure suction device, of the gastral cavity and the enteric cavity penetrate through the outer wall of the decompression cavity; the end, close to the negative pressure suction device, of the gastral cavity is provided with a medicine conveying connector, and the end, close to the negative pressure suction device, of the enteric cavity is provided with a nutrient solution conveying port. The negative pressure suction device comprises a one-way connector connected with the end of the decompression cavity, a liquid collecting bag is arranged at the end, away from the decompression cavity, of the one-way connector, and a negative pressure pump is arranged at the end, away from the one-way connector, of the liquid collecting bag. According to the three-cavity jejunum nutrition tube, pressure reduction, medicine conveying and nutrient solution supply are synchronously carried out, and the treatment efficiency and the living quality of a patient are greatly improved.

Description

Technical Field

[0001] The invention relates to the field of medical instruments and in particular to a three-cavity jejunal nutrition tube. Background Art

[0002] The application range of jejunal feeding tubes is wide, mainly including the following aspects: postoperative nutritional support. After gastrointestinal surgery, patients often do not have normal food intake. At this time, nutritional support provided through jejunal feeding tubes can help promote wound healing and physical recovery; nutritional support for critically ill patients. For critically ill patients with impaired consciousness, coma or dysphagia, jejunal feeding tubes are an important means of providing nutritional support; nutritional management of chronic diseases. For patients with chronic wasting diseases, high metabolic status, etc., jejunal feeding tubes can provide continuous and stable nutritional support and improve patients' nutritional status; treatment of special diseases, such as acute pancreatitis, gastrointestinal fistula, etc., jejunal feeding tubes can bypass the damaged gastrointestinal tract and directly provide nutritional support to the small intestine, reducing the occurrence of complications.

[0003] Although jejunal feeding tube technology has made certain progress, there are still some unresolved technical problems. Jejunal feeding tubes in the prior art mainly focus on the delivery of nutrients, but lack effective delivery routes for some drugs that need to be passed into the stomach. This causes patients to use a gastric tube or other drug administration methods in addition to using a jejunal feeding tube, which increases the pain and inconvenience of the patients. Although jejunal feeding tube technology can bypass the digestion process of the stomach, for some patients with excessive stomach pressure, measures still need to be taken to reduce stomach pressure. At present, there is still a lack of pipes and devices specifically used to reduce stomach pressure, which makes some patients still face the problem of stomach discomfort when receiving jejunal feeding tube treatment. Residues are easily accumulated inside the feeding tube, which is difficult to clean and increases the risk of infection. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a three-chamber jejunal nutrition tube that solves the problems of inconvenient drug delivery, high stomach pressure, and difficulty in cleaning and maintaining the pipeline in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a three-chamber jejunal nutrition tube, including a decompression chamber, wherein a stomach cavity and an intestinal cavity are arranged inside the decompression chamber; a micro pump is arranged on the inner wall of the decompression chamber;

[0006] A pressure-sensitive element patch is arranged at the end of the decompression chamber, and a negative pressure suction device is arranged at one end of the decompression chamber away from the pressure-sensitive element patch, and the pressure-sensitive element patch and the negative pressure suction device are electrically connected;

[0007] The ends of the gastric cavity and the intestinal cavity close to the negative pressure suction device pass through the outer wall of the decompression cavity; a drug delivery interface is arranged at the end of the gastric cavity close to the negative pressure suction device, and a nutrient solution delivery port is arranged at the end of the intestinal cavity close to the negative pressure suction device.

[0008] The beneficial effects of the present invention are as follows: traditional gastrointestinal care usually requires multiple pipelines for decompression, drug administration and nutritional support, which not only increases the pain and discomfort of patients, but also increases the workload and operational difficulty of medical staff. The three-cavity design of the present invention can be used for multiple purposes, effectively reducing the number of pipelines, simplifying the operation process, and improving the overall nursing efficiency. The built-in micro pump provides the possibility of regular cleaning of the decompression cavity, ensuring the cleanliness and patency of the lumen, and reducing the risk of infection. The setting of the pressure-sensitive element patch can monitor the pressure changes in the stomach in real time, and transmit the pressure value to the negative pressure suction device, which adjusts the stomach pressure according to the built-in program. The drug delivery interface and nutrient solution delivery port respectively set in the gastric cavity and the intestinal cavity realize the precise delivery of drugs and the continuous supply of nutrient solution. The drug delivery interface can be directly connected to a syringe or an infusion pump to realize the quantitative and timed delivery of drugs to the stomach. The nutrient solution delivery port ensures that the nutrient solution can directly and quickly enter the intestine, providing patients with high-quality nutritional support, which helps to promote the recovery of the patient's body.

[0009] Furthermore, in the above-mentioned three-chamber jejunal nutrition tube, the negative pressure suction device includes a one-way joint connected to the end of the decompression chamber, a liquid collection bag is arranged at the end of the one-way joint away from the decompression chamber, and a negative pressure pump is arranged at the end of the liquid collection bag away from the one-way joint.

[0010] The beneficial effects of adopting the above further scheme are: the setting of the one-way joint ensures that the liquid or gas in the decompression chamber can only flow into the liquid collection bag in one direction, effectively preventing the occurrence of backflow. During gastrointestinal decompression, backflow will not only increase the patient's discomfort, but may also cause complications such as infection. As the core component of the negative pressure suction device, the negative pressure pump can accurately adjust the negative pressure intensity according to the gastric pressure value monitored in real time by the pressure-sensitive element patch. By setting an appropriate negative pressure value, medical staff can ensure that the decompression effect will neither be insufficient due to too small a negative pressure, nor damage the gastric mucosa due to excessive negative pressure.

[0011] Furthermore, the above-mentioned three-chamber jejunal nutrition tube, the one-way joint includes an outer shell, the two ends of the outer shell are respectively an outlet end and an inlet end, a valve is arranged inside the one-way joint, the valve includes a valve seat close to the inner wall of the outer shell, a flow limiting hole is arranged at one end of the valve seat, a ball with a diameter larger than the flow limiting hole is movably arranged inside the valve seat, a limiting ring is arranged at the end of the valve seat away from the flow limiting hole, and a hole is arranged between the limiting ring and the valve seat.

[0012] The beneficial effects of adopting the above further scheme are as follows: when the negative pressure pump starts working and sucks gas or gastric fluid from the stomach, the ball is brought to the limiting ring by the negative pressure, and the gas or gastric fluid flows through the inlet end, the flow limiting hole, the hole and the outlet end and enters the liquid collecting bag; when the negative pressure pump stops working, the ball falls downward by gravity, and the ball falls into the flow limiting hole, blocking the flow limiting hole, so that the gastric fluid and gas in the liquid collecting bag will not flow back into the stomach due to gravity.

[0013] Furthermore, in the above-mentioned three-chamber jejunal nutrition tube, the pressure-sensitive element patch is a piezoelectric ceramic sensor.

[0014] Furthermore, in the above-mentioned three-chamber jejunal nutrition tube, the outer walls of the decompression chamber, the stomach chamber and the intestinal chamber are all provided with a silicone layer.

[0015] The beneficial effects of adopting the above further scheme are: the silicone material has excellent biocompatibility, and a silicone layer is provided on the outer wall of the nutrition tube, which can reduce damage to the gastrointestinal mucosa, reduce the patient's discomfort and risk of complications. This is especially important for patients who need long-term catheterization, which can ensure that they maintain the integrity and health of the gastrointestinal mucosa while receiving nutritional support. The silicone layer has good lubricity and can reduce the friction between the nutrition tube and the gastrointestinal wall. During use, the nutrition tube will come into contact with various nutrients and drugs, which may cause corrosion to the pipeline material. The silicone material has strong corrosion resistance and can resist the erosion of a variety of chemicals.

[0016] The beneficial effects of the present invention are as follows: the combination of the negative pressure pump and the pressure-sensitive element patch (piezoelectric ceramic sensor) realizes accurate monitoring and dynamic regulation of the pressure in the gastrointestinal tract. The negative pressure pump can automatically adjust the decompression intensity according to the pressure signal fed back by the pressure-sensitive element patch, ensuring that the pressure in the gastrointestinal tract is maintained within a safe range, effectively preventing tissue damage or complications caused by excessive pressure.

[0017] The gastric cavity and intestinal cavity are respectively provided with a drug delivery interface and a nutrient solution delivery port, which realizes the precise delivery of drugs and nutrient solutions. The negative pressure suction effect of the decompression cavity can further promote the absorption of drugs and nutrient solutions. The design of the one-way joint ensures that the fluid can only flow in one direction, effectively preventing the backflow of gastrointestinal contents and reducing the risk of infection. At the same time, the setting of the liquid collection bag facilitates the collection and treatment of the sucked liquid, keeping the treatment environment clean and hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a three-chamber jejunal feeding tube;

[0019] Figure 2 It is a structural schematic diagram of a one-way joint;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of a three-lumen jejunal feeding tube;

[0021] Among them: 1. decompression chamber; 2. gastric cavity; 3. intestinal cavity; 4. micro pump; 5. pressure-sensitive element patch; 6. negative pressure suction device; 7. drug delivery interface; 8. nutrient solution delivery port; 9. one-way connector; 10. liquid collection bag; 11. negative pressure pump; 12. outer shell; 13. outlet end; 14. inlet end; 15. valve; 16. valve seat; 17. flow limiting hole; 18. sphere; 19. limit ring; 20. hole. DETAILED DESCRIPTION

[0022] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0023] like Figure 1 As shown, this embodiment provides a three-chamber jejunal nutrition tube, including a decompression chamber 1, wherein a stomach cavity 2 and an intestinal cavity 3 are arranged inside the decompression chamber 1, together forming an efficient decompression and nutrition delivery system. A micro pump 4 is arranged on the inner wall of the decompression chamber 1;

[0024] A pressure-sensitive element patch 5 is provided at the end of the decompression chamber 1. A negative pressure suction device 6 is provided at one end of the decompression chamber 1 away from the pressure-sensitive element patch 5, and the pressure-sensitive element patch 5 and the negative pressure suction device 6 are electrically connected; in this embodiment, the pressure-sensitive element patch 5 is a piezoelectric ceramic sensor, which has the characteristics of high sensitivity, rapid response and long-term stability, and can monitor the pressure changes in the gastrointestinal tract in real time, and transmit the signal to the negative pressure suction device 6 electrically connected thereto. When an abnormal increase in pressure is detected, the negative pressure suction device 6 will be immediately started, and negative pressure suction will be performed through the other end of the decompression chamber 1 to discharge excess gas or liquid from the body, thereby achieving the purpose of decompression.

[0025] The gastric cavity 2 and the intestinal cavity 3 are respectively located on both sides of the decompression cavity 1, and the end close to the negative pressure suction device 6 passes through the outer wall of the decompression cavity 1. The end of the gastric cavity 2 close to the negative pressure suction device 6 is designed with a drug delivery interface 7, which adopts a standard medical interface design, which is convenient for connection with an infusion set or a syringe to achieve accurate drug delivery. The intestinal cavity 3 is provided with a nutrient solution delivery port 8 at its corresponding position, which is used to infuse nutrient solution into the intestine to meet the nutritional needs of the patient.

[0026] The negative pressure suction device 6 includes a one-way joint 9 connected to the end of the decompression chamber 1, a liquid collecting bag 10 is provided at the end of the one-way joint 9 away from the decompression chamber 1, and a negative pressure pump 11 is provided at the end of the liquid collecting bag 10 away from the one-way joint 9. The one-way joint 9 is tightly connected to the end of the decompression chamber 1 to ensure the sealing during the negative pressure suction process. The liquid collecting bag 10 is used to collect the sucked liquid, and its material is medical grade transparent plastic, which is convenient for medical staff to observe the collection amount and the properties of the liquid. The negative pressure pump 11 is connected to the liquid collecting bag 10 through a pipeline to provide a stable negative pressure source to drive the entire suction process.

[0027] The one-way joint 9 includes a housing 12, and the two ends of the housing 12 are respectively an outlet end 13 and an inlet end 14. A valve 15 is arranged inside the one-way joint 9, and the valve 15 includes a valve seat 16 that is close to the inner wall of the housing 12, and a flow-limiting hole 17 is arranged at one end of the valve seat 16. A ball 18 with a diameter larger than the flow-limiting hole 17 is arranged inside the valve seat 16, and a limiting ring 19 is arranged at one end of the valve seat 16 away from the flow-limiting hole 17. A hole 20 is arranged between the limiting ring 19 and the valve seat 16. When the fluid flows in from the inlet end 14, the ball 18 is pushed away, and the fluid flows to the outlet end 13 through the flow-limiting hole 17; and when the fluid pressure decreases or the direction changes, the ball 18 is reset under the action of gravity, and the flow-limiting hole 17 is blocked, which effectively prevents the occurrence of backflow.

[0028] Considering that the nutrition tube needs to be implanted in the patient's body for a long time, the outer walls of the decompression chamber 1, the stomach cavity 2 and the intestinal cavity 3 in this embodiment are all made of medical grade silicone material. Silicone has good biocompatibility, softness and corrosion resistance, and can fit the shape and contour of the gastrointestinal wall to reduce the discomfort of the patient. At the same time, the silicone layer also has certain antibacterial properties, which helps to reduce the risk of infection.

[0029] The unique structural design of the three-lumen jejunal feeding tube enables it to simultaneously meet multiple needs such as decompression, drug delivery and nutrient solution supply, reducing the incidence of complications and the degree of pain of patients.

Claims

1. A three-chamber jejunal nutrition tube, characterized in that: It comprises a decompression chamber (1), wherein a stomach cavity (2) and an intestinal cavity (3) are arranged inside the decompression chamber (1); a micro pump (4) is arranged on the inner wall of the decompression chamber (1); A pressure-sensitive element patch (5) is arranged at the end of the decompression chamber (1), a negative pressure suction device (6) is arranged at one end of the decompression chamber (1) away from the pressure-sensitive element patch (5), and the pressure-sensitive element patch (5) and the negative pressure suction device (6) are electrically connected; The ends of the gastric cavity (2) and the intestinal cavity (3) close to the negative pressure suction device (6) pass through the outer wall of the decompression cavity (1); the end of the gastric cavity (2) close to the negative pressure suction device (6) is provided with a drug delivery interface (7), and the end of the intestinal cavity (3) close to the negative pressure suction device (6) is provided with a nutrient solution delivery port (8).

2. The three-chamber jejunal feeding tube according to claim 1, characterized in that: The negative pressure suction device (6) comprises a one-way joint (9) connected to the end of the decompression chamber (1); a liquid collection bag (10) is arranged at one end of the one-way joint (9) away from the decompression chamber (1); and a negative pressure pump (11) is arranged at one end of the liquid collection bag (10) away from the one-way joint (9).

3. The three-chamber jejunal feeding tube according to claim 2, characterized in that: The one-way joint (9) comprises an outer shell (12), the two ends of the outer shell (12) are an outlet end (13) and an inlet end (14), respectively; a valve (15) is arranged inside the one-way joint, the valve (15) comprises a valve seat (16) closely attached to the inner wall of the outer shell (12), a flow limiting hole (17) is arranged at one end of the valve seat (16), a spherical ball (18) with a diameter larger than the flow limiting hole (17) is movably arranged inside the valve seat (16), a limiting ring (19) is arranged at one end of the valve seat (16) away from the flow limiting hole (17), and a hole (20) is arranged between the limiting ring (19) and the valve seat (16).

4. The three-chamber jejunal feeding tube according to claim 1, characterized in that: The pressure-sensitive element patch (5) is a piezoelectric ceramic sensor.

5. The three-chamber jejunal feeding tube according to claim 1, characterized in that: The outer walls of the decompression cavity (1), the stomach cavity (2) and the intestinal cavity (3) are all provided with a silica gel layer.

Images