Nutrition support and digestive system auxiliary device for critical patient

Abstract

The invention belongs to the technical field of patient nursing, and discloses a critical patient nutrition support and digestive system auxiliary device which comprises a main pipe body, a negative pressure drainage pipe and a medicine infusion pipe are arranged in the main pipe body, the main pipe body comprises an extending end and an injection end, and a pressure sensor and a pH sensor are arranged outside the extending end of the main pipe body; the pressure sensor is used for detecting the pressure in the stomach and intestines, and the pH sensor is used for monitoring the pH value in the stomach and intestines; the control system is in signal connection with the pressure sensor, the optical sensor and the pH sensor, the control system comprises a data processing module and an execution module, and the data processing module is used for analyzing data of the pressure sensor and the pH sensor and generating a control instruction; the execution module controls drainage of the negative pressure drainage tube and medicine release of the medicine infusion tube according to the instruction. The problems that an existing device is provided with a single cavity, nutrition delivery and gastrointestinal decompression cannot be achieved synchronously, additional catheterization is needed, and the pain of a patient is increased are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of patient care, and particularly relates to a nutritional support and digestive system assistance device for critically ill patients. Background Art

[0002] Critically ill patients (such as ICU patients, severe trauma, sepsis, multiple organ failure, etc.) often suffer from problems such as metabolic disorders, gastrointestinal dysfunction, and hypercatabolism, leading to a significantly increased risk of malnutrition. Malnutrition can increase the mortality rate of critically ill patients by 2-3 times and prolong the mechanical ventilation time and hospital stay. Reasonable and effective nutritional support can not only provide the energy and nutrients required by the body, maintain the intestinal mucosal barrier function, but also reduce the occurrence of complications such as infections, and is a key means to improve the prognosis.

[0003] A common method for providing nutritional support to critically ill patients is to deliver enteral nutrients through a gastrointestinal tube to the patient's stomach or intestine to ensure that the patient can intake sufficient protein and calories. Existing gastrointestinal tubes have the following problems:

[0004] 1. The gastrointestinal tube is a single cavity and cannot simultaneously achieve nutritional delivery and gastrointestinal decompression, requiring an additional catheterization, which increases the patient's pain.

[0005] 2. Lack of real-time monitoring function, unable to dynamically evaluate gastric residual volume, pH value or nutritional absorption efficiency, relying on manual aspiration for detection, increasing the risk of infection.

[0006] 3. The catheter displacement rate is high, easily leading to feeding interruption.

[0007] Therefore, to solve the above problems, the present invention provides a nutritional support and digestive system assistance device for critically ill patients, which can provide effective nutritional support for critically ill patients. Summary of the Invention

[0008] The present invention aims to provide a nutritional support and digestive system assistance device for critically ill patients, and the present invention aims to solve the technical problems existing in the prior art.

[0009] To achieve the above object, the present invention provides the following technical solution. A nutritional support and digestive system assistance device for critically ill patients includes a main body. A negative pressure drainage tube and a drug perfusion tube are arranged inside the main body. The main body includes an insertion end and an injection end. A pressure sensor and a pH sensor are arranged outside the insertion end of the main body. The pressure sensor is used to detect the pressure in the stomach and intestine, and the pH sensor is used to monitor the acidity and alkalinity in the gastrointestinal tract.

[0010] It also includes a control system that is signal-connected to the pressure sensor and the pH sensor. The control system includes a data processing module and an execution module. The data processing module is used to analyze the data of the pressure sensor and the pH sensor and generate control instructions; the execution module controls the drainage of the negative pressure drainage tube and the release of drugs from the drug perfusion tube according to the instructions.

[0011] Nutrients are introduced through the main body, and digestive enzymes or other drugs are introduced through the drug perfusion tube according to actual needs. The negative pressure drainage tube is connected to an external negative pressure device to achieve decompression. The main body, the drug perfusion tube, and the negative pressure drainage tube are integrally arranged, synchronously realizing nutrient delivery and gastrointestinal decompression, which can reduce the use of the tube body and facilitate operation.

[0012] The settings of the pressure sensor, the pH sensor, and the control system can regulate the introduction of nutrients and drugs according to actual needs and achieve intelligent decompression.

[0013] In another preferred embodiment of the present invention, an anchoring balloon is provided on the outer periphery of the extending end of the main body. Impedance detection electrodes are provided on the surface of the anchoring balloon. The impedance detection electrodes are signal-connected to the control system. The data processing module is used to analyze the data of the impedance detection electrodes and generate control instructions. The execution module controls the inflation of the anchoring balloon according to the instructions.

[0014] The inflation of the anchoring balloon can closely adhere to the inner walls of the stomach and intestines to fix the main body and reduce the displacement of the main body. The setting of the impedance detection electrodes can achieve intelligent positioning of the main body.

[0015] In another preferred embodiment of the present invention, the anchoring balloon includes a plurality of capsules arranged circumferentially along the main body. The capsules are arranged circumferentially along the main body, and the inflation degree of different capsules can be adjusted according to actual needs, so as to better fit the inner walls of the stomach and intestines.

[0016] In another preferred embodiment of the present invention, a plurality of grooves are provided on the surface of the capsule. The provision of the grooves can increase the friction force and thus improve the fixing effect.

[0017] In another preferred embodiment of the present invention, a piezoelectric driving unit is provided outside the extending end of the main body. The extending end of the main body is provided with a plurality of grooves. The piezoelectric driving unit includes a multi-layer piezoelectric composite material embedded in the grooves and a packaging layer covering the multi-layer piezoelectric composite material. The multi-layer piezoelectric composite material is an alternating arrangement of PZT-5H ceramic sheets and flexible copper electrode sheets; the control system further includes a signal generation module signal-connected to the piezoelectric driving unit for driving the operation of the piezoelectric driving unit.

[0018] The control system controls the periodic expansion and contraction of the PZT-5H ceramic sheets to simulate intestinal peristalsis and promote digestion.

[0019] In another preferred embodiment of the present invention, an optical sensor is further provided at the extending end of the main body. The optical sensor is signal-connected to the control system, and the execution module adjusts the addition of nutrients according to the instructions of the data processing module.

[0020] In another preferred embodiment of the present invention, nano antibacterial coatings are provided on the main body, the negative pressure drainage tube and the drug perfusion tube, which can reduce the risk of infection.

[0021] Advantages of the present invention:

[0022] 1. The present invention integrates nutrient delivery, gastrointestinal decompression, digestive enzyme release, and real-time monitoring into a single device.

[0023] 2. Automatically adjust the feeding strategy through sensor data (pressure, pH, optical signal).

[0024] 3. The setting of the piezoelectric drive unit can simulate intestinal peristaltic waves to promote emptying, and at the same time cooperate with the drug perfusion tube to introduce digestive enzymes, synergistically improving the digestion efficiency.

[0025] 4. The setting of the anchoring balloon can reduce the displacement of the main body, and according to the setting of the impedance detection electrode, the position of the main body can be automatically adjusted.

[0026] The additional aspects and advantages of the present invention will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of an embodiment of the present application.

[0029] Figure 2 is a longitudinal sectional view of the main body when the anchoring balloon expands in an embodiment of the present application.

[0030] Figure 3 is a schematic operating principle diagram of the anchoring balloon in an embodiment of the present application.

[0031] Figure 4 is a schematic operating principle diagram of the control system in an embodiment of the present application.

[0032] Reference numerals in the accompanying drawings of the specification include: main body 1, extending end 2, injection end 3, anchoring balloon 4, balloon body 5, PZT-5H ceramic sheet 6, flexible copper electrode sheet 7, encapsulation layer 8, negative pressure drainage tube 9, drug perfusion tube 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying 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 thus should not be construed as a limitation of the present invention.

[0035] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The present invention provides a nutritional support and digestive system assistance device for critically ill patients, as Figure 1 shown, which includes a main body 1. The main body 1 includes an insertion end 2 and an injection end 3. An anchoring balloon 4 is wrapped around the outer periphery of the insertion end 2 of the main body 1. Combining Figure 2 shown, the anchoring balloon 4 includes a plurality of capsules 5 arranged circumferentially along the outer periphery of the main body 1. In this embodiment, 6 capsules 5 are provided. Grooves are arranged on the outer surfaces of the capsules 5, which can increase the friction force and improve the fixing effect. Impedance detection electrodes are provided on the outer surfaces of the capsules 5 for real-time positioning of the catheter position.

[0037] A piezoelectric drive unit is provided on the left side of the insertion end 2 of the main body 1 where it is located inside the anchoring balloon 4. A plurality of grooves are arranged circumferentially on the insertion end 2 of the main body 1. The piezoelectric drive unit includes a multilayer piezoelectric composite material embedded in the groove and a packaging layer 8 covering the multilayer piezoelectric composite material. The multilayer piezoelectric composite material is a PZT-5H ceramic sheet 6 and a flexible copper electrode sheet 7 alternately arranged 3 times.

[0038] A pressure sensor, a pH sensor, and an optical sensor are provided on the right side of the insertion end 2 of the main body 1 where it is located inside the anchoring balloon 4. The pressure sensor is used to detect the pressure in the stomach and intestines, the pH sensor is used to monitor the acidity and alkalinity in the gastrointestinal tract, and the optical sensor is used to detect the residual amount of nutrients.

[0039] A negative pressure drainage tube 9 and a drug perfusion tube 10 are arranged in the main tube body 1. Therefore, a nutrient delivery cavity is formed in the middle of the main tube body 1, and negative pressure drainage cavities (inside the negative pressure drainage tube 9) and drug perfusion cavities (inside the drug perfusion tube 10) are formed on both sides of the nutrient delivery cavity. The nutrient delivery cavity is used to deliver nutrients to the gastrointestinal tract; the negative pressure drainage cavity is connected to an external negative pressure device for gastrointestinal decompression; the drug perfusion cavity is used to deliver digestive enzymes or drugs. Nano antibacterial coatings are provided on the main tube body 1, the negative pressure drainage tube 9 and the drug perfusion tube 10, which can reduce the risk of infection.

[0040] It also includes a control system. A pressure sensor, a pH sensor, an optical sensor, and impedance detection electrodes are all connected to the control system for signal transmission. The control system includes a data processing module and an execution module. The data processing module is used to analyze the data of the pressure sensor, the pH sensor, the optical sensor, and the impedance detection electrodes and generate control instructions; the execution module controls the drainage of the negative pressure drainage tube 9, the release of drugs from the drug perfusion tube 10, the introduction of nutrients into the main tube body 1, and the inflation of the anchoring balloon 4 according to the instructions.

[0041] The control system also includes a signal generation module that is connected to the piezoelectric drive unit for signal transmission, and is used to drive the piezoelectric drive unit to operate.

[0042] The specific implementation process is as follows:

[0043] Combined with Figure 3 、 Figure 4 As shown, insert the insertion end 2 of the main tube body 1 into the patient's stomach / intestine according to actual needs, and dynamically adjust the anchoring balloon 4 through the control system to fix the insertion end 2 of the main tube body 1. The balloon body 5 of the anchoring balloon 4 expands, and the impedance detection electrodes on its surface are in contact with the stomach / intestinal wall and transmit signals to the data processing module. After data analysis, the position offset of the main catheter is fed back, control instructions are generated, and then the execution module controls different inflation amounts of different balloon bodies 5 according to the instructions to adjust the position of the main tube body 1, and at the same time complete the fixation of the insertion end 2 of the main tube body 1.

[0044] Deliver nutrients from the nutrient delivery cavity of the main tube body 1 to the patient's stomach / intestine. The optical sensor detects the amount of nutrients and transmits data to the data processing module. The data processing module generates control instructions according to the transmitted data to adjust the delivery of nutrients. After the nutrients are delivered, the signal generation module generates a control signal to control the periodic contraction of the multi-layer piezoelectric composite material to simulate intestinal peristaltic waves to promote evacuation.

[0045] At the same time, the pressure sensor and the pH sensor transmit the pressure fluctuation and acidity in the stomach / intestine to the data processing module of the control system. When the pressure in the stomach / intestine reaches the threshold value, control instructions are generated to control the drainage of the negative pressure drainage tube 9 to achieve decompression; and at the same time, according to the acidity, control instructions are generated to release drugs using the drug perfusion tube 10 to control the drug release frequency.

[0046] In the description of this specification, the descriptions referring to terms such as "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A nutritional support and digestive system assistance device for critically ill patients, including a main tube body, characterized in that: A main tube body is provided with a negative pressure drainage tube and a drug perfusion tube. The main tube body includes an insertion end and an injection end. A pressure sensor and a pH sensor are arranged outside the insertion end of the main tube body. The pressure sensor is used to detect the pressure in the stomach and intestine, and the pH sensor is used to monitor the acidity and alkalinity in the gastrointestinal tract. It also includes a control system signal-connected to the pressure sensor and the pH sensor. The control system includes a data processing module and an execution module. The data processing module is used to analyze the data of the pressure sensor and the pH sensor and generate control instructions. The execution module controls the drainage of the negative pressure drainage tube and the release of drugs from the drug perfusion tube according to the instructions.

2. The nutritional support and digestive system assistance device for critically ill patients according to claim 1, wherein: An anchoring balloon is arranged on the outer periphery of the insertion end of the main tube body. An impedance detection electrode is arranged on the surface of the anchoring balloon. The impedance detection electrode is signal-connected to the control system. The data processing module is used to analyze the data of the impedance detection electrode and generate control instructions. The execution module controls the inflation of the anchoring balloon according to the instructions.

3. The nutritional support and digestive system assisting device for critically ill patients according to claim 2, wherein: The anchoring balloon includes a plurality of balloon bodies arranged circumferentially along the main tube body.

4. A nutritional support and digestive system assistance device for critically ill patients according to claim 3, characterized in that: A plurality of grooves are arranged on the surface of the balloon body.

5. The nutritional support and digestive system assistance device for critically ill patients according to claim 4, characterized in that: A piezoelectric driving unit is arranged outside the insertion end of the main tube body. A plurality of grooves are arranged at the insertion end of the main tube body. The piezoelectric driving unit includes a multi-layer piezoelectric composite material embedded in the groove and a packaging layer covering the multi-layer piezoelectric composite material. The multi-layer piezoelectric composite material is an alternately arranged PZT-5H ceramic sheet and a flexible copper electrode sheet. The control system also includes a signal generating module signal-connected to the piezoelectric driving unit for driving the piezoelectric driving unit to operate.

6. The nutritional support and digestive system assistance device for critically ill patients according to claim 5, wherein: An optical sensor is also arranged at the insertion end of the main tube body. The optical sensor is used to detect the residual amount of nutrients. The optical sensor is signal-connected to the control system. The execution module adjusts the addition of nutrients according to the instructions of the data processing module.

7. The nutritional support and digestive system assistance device for critically ill patients according to claim 6, wherein: Nano antibacterial coatings are provided on the main tube body, the negative pressure drainage tube and the drug perfusion tube.

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