CN113559340B - Circulating system capable of detecting nutrient solution components - Google Patents
Circulating system capable of detecting nutrient solution components Download PDFInfo
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- CN113559340B CN113559340B CN202110985486.9A CN202110985486A CN113559340B CN 113559340 B CN113559340 B CN 113559340B CN 202110985486 A CN202110985486 A CN 202110985486A CN 113559340 B CN113559340 B CN 113559340B
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Classifications
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/84—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving inorganic compounds or pH
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0026—Parts, details or accessories for feeding-tubes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0026—Parts, details or accessories for feeding-tubes
- A61J15/0076—Feeding pumps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/66—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood sugars, e.g. galactose
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J2200/00—General characteristics or adaptations
- A61J2200/40—Heating or cooling means; Combinations thereof
- A61J2200/42—Heating means
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Abstract
The present invention relates to a circulatory system capable of detecting the composition of a nutrient solution, capable of sucking residual contents in the stomach into an external container for storage and re-infusing the contents back into the stomach or remaining in the container based on the composition of the contents stored in the container. The device at least comprises a detection module arranged in the container, an analysis module for analyzing detection data, a control module for sending control signals based on the data analyzed by the analysis module, and a working module for receiving the control signals of the control module and changing the working state based on the control signals. The detection module is used for detecting indexes and parameters of the stomach and the contents of the patient, transmitting the detected information to the analysis module, and transmitting data to the control module after analyzing the indexes and the parameters by the analysis module, wherein the control module controls the working module to enter different working modes according to the analysis data of the stomach and the contents of the stomach so as to adapt to patients with different illness states and different nursing processes.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a circulating system capable of detecting nutrient solution components.
Background
For patients needing nutrition support for a long time, swallowing and cough reflex are mostly weakened, gastric fluid retention is caused by delayed gastric emptying, the probability of aspiration exceeding 200mL of gastric retention is increased, and because the resistance of the patients is reduced, the body regulating ability is reduced, aspiration pneumonia is caused by reflux or aspiration of gastric contents with high probability, the mortality rate of the aspiration pneumonia is extremely high, and the difficulty of curing the patients is greatly increased. In order to avoid aspiration, medical staff is required to regularly use a syringe to extract gastric residues from a gastric tube in the process of protecting a patient, and the extracted gastric residues can be directly abandoned, and a large amount of nutrients, digestive juice of the stomach of the patient and microorganisms beneficial to digestion can be contained in the gastric residues. The extracted part not only reduces the amount of the nutrient substances actually input by the patient, but also causes the loss of digestive juice in the stomach of the patient and microorganisms beneficial to digestion, so that the digestive function of the patient is reduced, the absorption of the nutrient substances by the patient is reduced again, the actual nutrient intake of the patient cannot be estimated, the medical staff is inconvenient to grasp the actual metabolic condition of the patient, and the nutrient substances are wasted.
The residual stomach contents are collected and the nutritional ingredients and PH in the stomach contents are detected, so that the amount of the nutritional ingredients actually absorbed by a user can be analyzed, whether the stomach contents are at normal physiological metabolism level or not can be judged, and guidance and reference can be provided for the subsequent nutrition support process. The collected contents can be re-infused to re-infuse digestive juice and microorganisms into the stomach, so that the digestive function in the stomach is restored to some extent, and nutrient substances which have not been previously absorbed can be re-digested and absorbed.
CN209092212U discloses a nasal feeding back suction and back feeding device, comprising a medical three-way valve, a liquid storage bag for storing gastric residual liquid and a suction device with a certain space for sucking the gastric residual liquid; the left side interface of the medical three-way valve is connected with a first catheter, the right side interface of the medical three-way valve is connected with a second catheter, and the upper interface of the medical three-way valve is connected with a third catheter; the medical three-way valve is communicated with the liquid storage bag through the second conduit, and the medical three-way valve is communicated with the suction device through the third conduit. The device is sucked by manually using the syringe, the first conduit is firstly controlled to be communicated with the third conduit so that gastric contents can be sucked into the syringe through the syringe, and then the third conduit is controlled to be communicated with the second conduit so that the contents in the syringe can be injected into the liquid storage bag for storage, and the steps are repeated for a plurality of times so as to suck the residual contents in the stomach into the liquid storage bag for storage. When the feedback is needed, the first conduit and the second conduit are communicated, so that the content is feedback again into the stomach from the liquid storage bag. In the using process, the capacity of the injector is limited, and the excessive injector is difficult to smoothly control the pumping speed and easily causes excessive pumping pressure, so that the injector needs to be used for pumping for a plurality of times. In the process of repeated extraction, the switch states on the first catheter, the second catheter and the third catheter need to be controlled for multiple times, so that the time and the labor are wasted, and the use is inconvenient. And the nutritional components in the retention substance cannot be known, and direct feedback can cause low nutritional component content and increase digestion burden on the stomach of a patient.
Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents while making the present invention, the text is not limited to details and contents of all but it is by no means the present invention does not have these prior art features, but the present invention has all the prior art features, and the applicant remains in the background art to which the right of the related prior art is added.
Disclosure of Invention
In response to the deficiencies of the prior art, the present invention provides a circulatory system capable of detecting the composition of a nutrient solution, drawing residual contents of the stomach into an external container for storage and re-infusing the contents back into the stomach or into a surviving container based on the composition of the contents stored in the container. The circulating system at least comprises a detection module arranged in the container, an analysis module for analyzing detection data, a control module for sending control signals based on the data analyzed by the analysis module, and a working module for receiving the control signals of the control module and changing the working state based on the control signals. The detection module is used for detecting indexes and parameters of the stomach and the contents of the patient, transmitting the detected information to the analysis module, and transmitting data to the control module after analyzing the indexes and the parameters by the analysis module, wherein the control module controls the working module to enter different working modes according to the analysis data of the stomach and the contents of the stomach so as to adapt to patients with different illness states and different nursing processes.
The way this is set up is advantageous: (1) The gastric residue can be automatically extracted at fixed time through an external program or according to a detection signal of the detection device without manual assistance, and a nurse is not required to independently care, so that the probability of aspiration of a patient is reduced; (2) The extracted nutrient solution can be stored in a container, the container is isolated from the outside air, the content in the container can be prevented from being polluted by microorganisms in the outside air, reinfusion is convenient, and the reinfusion content is ensured to meet the sanitary safety standard; (3) The contents stored in the container can be returned to the stomach of the patient at a controlled speed by controlling the work of the work module, so that microorganisms and digestive juice in the stomach of the patient can be supplemented and recovered, the digestion and absorption capacity of the patient can be conveniently improved, the pressure of the re-secreted digestive juice which is remained in the suction stomach and is increased for the stomach of the patient can be reduced, and the full utilization of nutrient substances can be realized; the feedback speed is controllable, so that the device can adapt to different patient conditions and set different feedback speeds; (4) The detection module and the analysis module can analyze the content and the PH of various nutritional ingredients in the extracted gastric contents, so that medical staff can judge whether the content is worth reinfusion or not according to the ingredients, and determine whether the extracted content needs to be reinfusion or not. When it is determined that the content does not have the feedback value, the input end of the reflux pump can be connected to the inside of the remaining nutrient solution, and the remaining nutrient substances can be fed through the reflux pump.
According to a preferred embodiment, the circulation system operates as follows: when the detection module detects that the concentration of the nutrient components in the content stored in the container is higher than a first threshold value, the control module controls the reflux pump actuator to work in a preset first program; the first program is to start the feedback at a first speed and to gradually accelerate in a first time to maintain the feedback at a second speed after the feedback at the second speed. When the detection module detects that the nutrient concentration of the content stored in the container is higher than a second threshold value, the control module controls the reflux pump actuator to work in a preset second program; the second program starts the feedback at the third speed and gradually increases in the first time to maintain the feedback at the fourth speed after the feedback at the fourth speed.
According to a preferred embodiment, the detection module comprises a component analyzer arranged at a first end of the container close to the ground, the component analyzer can detect the nutrition components and PH of the stomach contents in the container and send detection data to the analysis module, the analysis module analyzes and judges how much of each nutrition component and gastric acid content in the stomach contents generates an analysis result based on the detection data of the component analyzer, and the control module judges whether the stomach contents have feedback value and generates and sends a control signal to the working module based on the analysis result.
Such an arrangement is advantageous: the digestion ability of the patient is adapted according to the concentration of the nutrient in the extracted stomach contents, and the feedback is performed at a speed that can supply sufficient nutrient to the patient and does not burden the patient, so as to reduce the burden on the stomach of the patient. For example, when the protein content concentration in the extracted stomach contents is high and the patient's absorption capacity for proteins is weak, the input is made at a slower rate so that the patient has the ability to fully absorb the input proteins without remaining in the stomach again. When the content of saccharides in the extracted stomach content is low and the absorption capacity of the saccharides by the patient is strong, the input is made at a faster speed, so that the patient can obtain a sufficient supply of saccharides in a short time without worrying about the re-remaining of the content in the stomach. By setting the first threshold, no reinfusion is performed when the concentration of the stomach contents is below the first threshold.
According to a preferred embodiment, the device comprises at least a gastric tube for constructing a nutritional channel through the esophagus from the outside to the inside of the stomach of a user, a container for connecting the gastric tube and capable of generating negative pressure to draw out the gastric contents outside the stomach and storing the gastric contents in the container so as to prevent the gastric contents from being erroneously entered into the lung by a patient to cause pulmonary infection, and a reflux pump at least an input end of which is arranged in the container and capable of conveying the gastric contents in the container from the gastric tube to the stomach of the patient again.
The way this is set up is advantageous: the method comprises the steps of constructing a fluid channel for sucking out nutrient substances in the stomach of a patient from the stomach and re-infusing the sucked nutrient substances in the stomach from the outside, and performing the re-infusion and suction processes of the nutrient solution through equipment controlled by a control signal or manual operation, so that the suction and re-infusion speed can be accurately controlled through a machine, and the labor and the energy of medical staff are saved.
According to a preferred embodiment, in normal operation, the container has a first end remote from the ground and a second end close to the ground, the first end of the container being provided with a connection port for connection to an external negative pressure generating device and a first tube for connection to an end of the gastric tube not disposed in the stomach. In the case where the container internally generates a negative pressure based on the operation of the external negative pressure generating means connected thereto, the gastric contents are passed from inside the stomach into the container via the gastric tube and the first tube based on the negative pressure.
The way this is set up is advantageous: the device is vertically placed in a use state, so that gastric contents extracted based on negative pressure can be gathered towards the second end of the container, which is close to the ground, based on gravity after flowing out of the orifice of the first tube, and the gastric contents cannot be blocked at the outlet of the first tube; and the negative pressure generating device cannot be influenced to work normally by entering the negative pressure generating device through a connecting port on the first end of the container, which is used for being connected with the negative pressure generating device.
According to a preferred embodiment, the container is arranged in an inverted cone in such a way that it is possible to concentrate the content in case of a small amount of content inside.
Such an arrangement is advantageous: can be gathered to the bottom of the container based on the reverse taper with a small content.
According to a preferred embodiment, the return pump comprises an input for sucking in fluid and an output for outputting fluid, the input of the return pump being arranged at the second end of the container in such a way that a sufficient return of the content of the container is possible. This arrangement enables the return pump to maintain its return in the case of a low content of the contents of the container.
According to a preferred embodiment, the output end of the reflux pump is provided with a second tube arranged coaxially with the first tube near an end of the gastric tube and located in the first tube in such a way that the gastric content in the container can be re-infused back into the stomach through the gastric tube.
According to a preferred embodiment, the first tube and the second tube form a double lumen tube which is connected to the gastric tube by means of a first connection and a second connection in such a way that the connection of the device can be changed without changing the suction and delivery state of the circulation device.
The arrangement mode enables the first pipe and the second pipe to be connected and fixed with each other through the second connecting piece, the first pipe and the second pipe jointly form the double-cavity pipe with the volume of the internal flow channel kept unchanged, the double-cavity pipe is provided with the fluid inflow channel and the fluid outflow channel, the fluid inflow channel is a channel limited by the inner wall of the second pipe, and the fluid outflow channel is a channel limited by the outer wall of the second pipe and the inner wall of the first pipe, so that when the liquid suction and feedback process is changed, the fluid inflow channel and the fluid inflow channel can be switched to adapt to different processes without changing the connection mode, the use is convenient, and even the pipeline is polluted due to frequent replacement connection. The fixing of the first tube and the second tube can ensure that the flow passage in the double-cavity tube is kept smooth under the condition of moving the container or the reflux pump, and the flow passage in the double-cavity tube is not blocked due to the twisting of the inner or outer pipelines, so that the double-cavity tube is convenient to move.
According to a preferred embodiment, the first and second connection members are connected by means of annular suction cups provided at the end edges of the second connection members in a manner that is adapted to the frequently changing flow direction of the fluid in the pipe.
The sucking disc on the end edge can be closely contacted with the inner wall of the flaring when the end edge contacts with the flaring of the horn shape of the first connecting piece in such a way, and air is extruded into the sucking disc, so that the sucking disc can be pressed on the inner wall of the flaring based on atmospheric pressure, the end edge of the second connecting piece is closely connected with the inner wall of the flaring, the second connecting piece is not easy to separate, and the relative movement is not easy to generate, so that the connection of the first connecting piece and the second connecting piece is more stable. Different movement trends between the gastric tube and the double-cavity tube, which are caused by different flow directions of fluid in the feedback and suction processes, cannot cause the dislocation of the first connecting piece and the second connecting piece, so that the movement amount of the gastric tube relative to the nasal cavity of a patient is smaller, and the friction damage to the nasal cavity of the patient is less.
Drawings
FIG. 1 is a schematic view of the overall structure of a circulation device according to a preferred embodiment of the present invention during a conveying process;
FIG. 2 is a schematic view of the overall structure of a circulation device according to a preferred embodiment of the present invention under suction;
fig. 3 is a cross-sectional view showing the connection of the first connector and the second connector according to a preferred embodiment of the present invention.
List of reference numerals
100: a gastric tube; 110: a first connector; 200: a container; 210: a first end; 220: a second end; 300: a reflux pump; 310: an input end; 320: an output end; 230: a first tube; 330: a second tube; 400: a dual lumen tube; 331: an air bag; 411: a first section; 412: a second section; 410: a second connector; 413: a through hole; 240: a connection port; 414: a third section; 415: and a sucking disc.
Detailed Description
The following is a detailed description with reference to fig. 1-3.
Example 1
Most critical patients have impaired swallowing and cough reflex, gastric fluid retention caused by delayed gastric emptying, and aspiration pneumonia caused by reflux aspiration easily occurs. The mortality rate of aspiration pneumonia is 40% -60%, and serious illness is highly susceptible to improper care for critical patients. The high gastric residual quantity is an early manifestation of intestinal nutrient intolerance and is directly related to aspiration, and frequent aspiration can occur when the residual quantity in the stomach is more than 150ml at least twice or more than 250ml at least once, and aspiration pneumonia can be caused by frequent aspiration. Maintaining gastric residual volume in a safe range is important for critical patient monitoring. The existing timing operates as if the syringe were used to aspirate stomach contents every 4 hours: the injector is connected to the nasal feeding tube, and the injector is discarded after being sucked for a plurality of times to relieve stomach pressure, so that the stomach content is in a safe range, and the probability of aspiration is reduced; and the amount of gastric contents withdrawn is recorded to aid in assessing the patient's condition. However, the contents of the syringe after extraction are mixed with a large amount of digestive juice, and the operation of extracting the gastric contents reduces the content of digestive juice in the stomach of the patient and weakens the digestive function of the stomach. In addition, the extracted nutrient solution content not only contains a large amount of digestive juice but also contains a large amount of undigested nutrient substances, and the action of directly discarding the extracted nutrient solution content in the prior art can avoid the error inhalation of patients, but has a plurality of effects, such as: reduced digestion, slow recovery of the body, waste of nutrient solution, etc. Gastric content reinfusion is a viable and highly beneficial technique that can help replenish digestive fluids in the stomach to promote digestion by the patient, and can reabsorb undigested absorbed nutrients for full use. However, most of the stomach contents extracted by the prior art in the way of sucking and extracting the stomach contents by the syringe are exposed to the air, polluted, and cannot be returned again because of not conforming to the sanitary standard.
The present embodiment provides a circulation device including at least a gastric tube 100 for constructing a nutrition passage from the outside to the inside of a user's stomach through the esophagus, a container 200 for connecting the gastric tube 100 and capable of generating pressure to draw out the gastric contents to the outside of the stomach and storing them in the inside thereof so as to prevent the gastric contents from being erroneously entered into the lungs by a patient to cause pulmonary infection, and a reflux pump for providing at least an input end 310 in the container 200 and capable of re-transporting the gastric contents in the container 200 from the gastric tube 100 to the patient's stomach. The container 200 is capable of drawing gastric contents into the container 200 through the gastric tube 100 based on the principles of siphon or negative pressure suction and storing in the container 200. The container 200 is a closed container 200 connected to a negative pressure or siphon device, and the space inside the container 200 is kept isolated from the outside air. Preferably, the container 200 is provided as a rigid container, and the container 200 can be sterilized prior to use, so that the inside of the container 200 is maintained in a sterile state at the time of use, so that the stomach contents stored in the container 200 are not contaminated with outside air, and conform to the hygienic standard of reinfusion. The reflux pump 300 is disposed in the container 200, and the reflux pump 300 is used for conveying the gastric contents stored in the container 200 into the gastric tube 100 again at a certain speed, and finally reaching the stomach of the patient again through the gastric tube 100, so as to convey the extracted digestive juice, microorganisms in the stomach and nutrient solution back to the stomach of the patient again, thereby assisting in improving the digestion and absorption capacity of the patient. The substances in the extracted gastric contents can be digested into small molecular substances which can be directly absorbed by patients due to the previous gastric digestion process, and the substances can be directly absorbed by the patients after reinfusion without complex digestion process, so that the substances can be directly absorbed and applied to maintaining own life activities, and the digestion burden of the patients can be reduced.
According to a preferred embodiment, the container 200 has a receiving cavity for receiving the aspirated digestive juice, the receiving cavity being arranged to divide into a first end 210 remote from the ground and a second end 220 close to the ground at least in the direction of gravity in normal use of the container 200. A connection pipe for connecting an external suction device is provided on the second end 220 of the container 200, and the external suction device sucks air contained inside the container 200 through the connection pipe, so that a negative pressure is generated inside the container 200. The first end 210 of the container 200 is further provided with a first tube 230 for communicating with the gastric tube 100 and together with the gastric tube 100 forming a fluid outflow channel from the interior of the stomach into the container 200. When the container 200 is in communication with the gastric tube 100 through the first tube 230, the negative pressure is generated inside the container 200 by controlling the operation of the external suction device, and the stomach contents are flowed from the stomach into the container 200 through the fluid outflow channel based on the negative pressure to supplement the volume of air drawn by the suction device. After the stomach contents flow to the first end 210, they drop to the second end 220 of the container 200 at the first end 210 of the container 200 based on the weight of the contents and accumulate at the second end 220. Preferably, the interior of the container 200 may be implemented to be pre-filled with sterile air. Preferably, the inside of the container 200 is implemented to be previously set to a negative pressure state. The volume of the container 200 is set to be slightly larger than the stomach volume of a normal human body so that in extreme cases, for example, when the stomach content volume of a patient is abnormally increased, at least N mL of stomach content needs to be extracted to ensure that the stomach content is in a safe amount that is largely free of aspiration, the container 200 can completely contain the extracted N mL of content without the content entering the first tube 230 at the first end 210 of the container 200, and even entering the aspiration device through the first tube 230 causes the aspiration device to be contaminated or damaged. Preferably, the container 200 can be provided in a plurality of sizes to accommodate different user uses. For example, the volume of the container 200 may be set to multiple sizes of 2000mL, 1500mL, 1000mL, 500mL, etc., to accommodate different populations or use scenario applications, respectively. For example, a container 200 with a capacity of 1500mL is used for adults and a container 200 with a capacity of 500mL is used for infants, so that resources are saved and waste is reduced. Preferably, the container 200 is configured as an inverted cone with a gradually decreasing caliber from the first end 210 to the second end 220 so that gastric contents collected at the second end 220 can be collected together in small amounts and a liquid level is established at the second end 220 of the container 200 closer to the ground that can submerge the input end 310 of the reflux pump 300. Preferably, the container 200 is provided with colorless and transparent, and is provided with marked graduation marks at positions corresponding to the corresponding volumes, so as to facilitate measurement of the content in the container, and can facilitate medical staff to observe the color, property and quantity of the stomach content, so as to assist doctors in adjusting treatment means in time. For example, when the stomach contents are dark green in color, it is indicated that the contents are mixed with bile, and the stomach contents are normal in color; when the stomach contents are red in color, indicating that fresh bleeding points exist in the stomach, and considering whether the suction pressure is excessive to cause damage in the stomach, the suction pressure needs to be adjusted and further diagnosed; when the stomach contents are brown in color, the old bleeding points in the stomach are indicated, whether hidden lesions exist in the stomach or not needs to be considered, diagnosis and treatment in time are needed, and whether a nutrition support mode needs to be replaced or not needs to be replaced by enteral nutrition liquid supply.
According to a preferred embodiment, a return pump 300 is provided on the container 200, the return pump 300 having an inlet 310 for drawing in fluid and an outlet 320 for delivering fluid. Reflux pump 300 is used to return the contents of container 200 at a set rate through gastric tube 100 back into the stomach. The input end 310 of the return pump 300 is positioned within the second end 220 of the container 200 near the ground so that the input end 310 of the return pump 300 can be below the level of the contents accumulated at the second end 220 of the container 200, particularly where the second end 220 of the container 200 accumulates a small amount of contents, the return pump 300 can adequately return the remaining contents to the gastric tube 100. The output end 320 of the reflux pump 300 is provided with a second tube 330 connected to the gastric tube 100. Preferably, the second tube 330 of the reflux pump 300 is connected to the container 200 and coaxially disposed within the first tube 230 of the first end 210 of the container 200, together forming a dual lumen tube 400 connected to the container 200. Preferably, the second tube 330 penetrates into the inner cavity of the container 200 from the outside and is hermetically connected with the container 200. Preferably, the second tube 330 is connected to the inner wall of the container 200 from the inside of the container 200. The second tube 330 of the reflux pump 300 communicates with the gastric tube 100 to form a fluid inflow channel. The dual lumen tube 400 includes a fluid outflow channel and a fluid inflow channel. The fluid outflow channel consists of the lumen of the gastric tube 100 and the channel formed by the inner wall of the first tube 230 and the outer wall of the second tube 330. The fluid inflow channel is formed by the lumen of the gastric tube 100 and the lumen of the second tube 330. The contents of the container 200 are returned to the stomach again from the container 200 via the fluid inflow channel by the reflux pump 300. Preferably, the input of the return pump 300 comprises at least two branches provided with sealing valves. The first branch of the input is inserted into the second end 220 of the container 200, the second branch of the input being in communication with an external nutrient solution container. When the extracted stomach content needs to be returned, controlling the valve of the first branch to be opened and controlling the valve of the second branch to be closed; when fresh nutrient solution is required to be input, the valve of the second branch is controlled to be opened, and the valve of the first branch is controlled to be closed. The second branch can also be used for feeding some nutritional liquids with therapeutic effect for the indication. For example, a nutrient solution with a low lactose content or a nutrient solution containing antibiotics. Preferably, the second tube 330 for delivering the stomach contents based on the action of the reflux pump 300 is circumferentially provided with a first balloon 331 on the outer wall of the section of the first tube 230 inside, the first balloon 331 being expandable under inflation, the expanded first balloon 331 being capable of contacting the inside of the first tube 230 such that the fluid outflow channel constituted by the stomach tube 100 and the inner wall of the first tube 230 and the outer wall of the second tube 330 is blocked. When the patient's condition requires that the gastric contents be withdrawn into the container 200 for storage, the first balloon 331 is controlled to be contracted so as to clear the fluid outflow path, so that the gastric contents can sequentially enter the container 200 along the gastric tube 100 and the first tube 230 based on the negative pressure generated inside the container 200 by the suction means; when the patient's condition requires re-feeding the gastric contents stored in the container 200 into the stomach, the first balloon 331 is controlled to inflate such that the fluid outflow channel is closed, so that the gastric contents pumped from the first end 210 of the container 200 into the second tube 330 via the reflux pump 300 are not accidentally returned again into the container 200 via the fluid outflow channel when they enter the stomach via the fluid inflow channel. Preferably the inner walls of the first and second tubes are provided with flow rate detection means for detecting the flow rate of the liquid so as to detect flow rate data.
According to a preferred embodiment, the section part of the second tube 330 at the output end of the reflux pump 330, which is not arranged in the container, is wound into a spiral shape, a heating sleeve is arranged outside the spiral shape, a heating device is arranged in the heating sleeve, and the heating device is controlled to heat the spiral-shaped second tube 330, so that the temperature of the nutrient solution returned to the stomach of the patient can be regulated and controlled, the substance of the nutrient solution is more suitable for the temperature in the patient, and the stimulation of the input nutrient solution to the stomach of the patient is reduced.
According to a preferred embodiment, reflux pump 300 is disposed within container 200 and operates within container 200 to re-deliver the nutrient solution to the patient's stomach. Preferably, reflux pump 300 is disposed outside of container 200 and operates outside of container 200 to re-introduce the nutrient solution into the patient's stomach. Preferably, the return pump 300 is disposed outside the container 200, and the second tube 330 of the return pump 300 is disposed outside the container 200 and disposed at the first end 210 of the container 200 through the outer wall of the container 200. The second tube 330 is connected to the outer wall of the container 200 and is disposed within the first tube 230. Preferably, the return pump 300 is controlled by a pump actuator. The pump actuator is electrically connected to the return pump 300 for ease of control. Preferably, the pump actuator is connected or magnetically coupled to the return pump 300. Preferably, the return pump 300 includes at least an impeller. Preferably, when the pump actuator and the return pump 300 are magnetically connected, the pump actuator is provided with a first magnetic member, the return pump 300 is provided with a second magnetic member, the first magnetic member and the second magnetic member are coupled to each other, and when the first magnetic member rotates, the second magnetic member can rotate following the first magnetic member based on the magnetic coupling. Preferably, the second magnetic element is an impeller, so that when the second magnetic element rotates, the gastric contents in the container 200 are driven to move along the pump action direction, i.e., the gastric contents in the container 200 enter the reflux pump 300 along the input end 310 of the reflux pump 300 under the action of the impeller, and flow out of the output end 320 of the reflux pump 300 and into the fluid inflow channel to re-enter the stomach of the patient. The magnetic coupling manner makes it unnecessary for accessories such as electric wires to penetrate the outer wall of the container 200 to be connected with the reflux pump 300 provided in the container 200, so that the container 200 does not need to be subjected to a water leakage prevention operation, the cost is saved, and the leakage of the content can be prevented. By controlling the power and mode of operation of the pump actuator, the reflux flow rate of the fluid can be varied to accommodate different gastrointestinal care modes and different crowd needs.
According to a preferred embodiment, a dual lumen tube 400 having one end connected to the first end 210 of the container 200 is connected to the gastric tube 100 by a first connector 110 at the opposite end of the container 200. The gastric tube 100 is placed at one end in the stomach and enters the nasal cavity through the nasal vestibule, then is inserted into the lower nasal meatus, is guided to the nasopharynx through the lower nasal meatus, then reaches the epiglottis cartilage through the nasopharynx, and the patient performs swallowing action to control the epiglottis cartilage to guide the gastric tube 100 to descend into the upper esophagus and then into the lower esophagus, and then enters the stomach. The end of the gastric tube 100 not inserted into the stomach is connected with an external nutrient solution supply device or a suction device, so that when the nutrient solution supply device inputs nutrient solution to the end of the gastric tube 100 not inserted into the stomach, the nutrient solution can gradually enter the stomach of a patient through the nose and the mouth along the gastric tube 100 at a speed controlled by the nutrient solution supply device, and does not need to enter the stomach through the normal esophagus of the patient, so that the gastric tube is suitable for some patients with difficult feeding or poor digestion function to keep normal nutrient intake. The gastric tube 100 is provided with a second connector 410 for mating connection with the first connector 110. Preferably, the second connector 410 is provided as a flared end having a narrower end inserted into the interior of the conduit of uniform thickness, and a narrower end fixedly connected to the conduit by means of threads or welding, etc., so as to prevent leakage or even slippage at the connection location of the gastric tube 100 and the first connector 110 during the fluid delivery and aspiration, which affects nutrient delivery and aspiration. The flared, wider end of the "flare" of the first connector 110 is used to connect with the second connector 410. Preferably, the second connector 410 is configured as a stepped connector that is inserted into a "flare" of the first connector 110 to connect with the first connector 110.
The nutrient solution during delivery of the nutrient solution by means of the return pump 300 tends to push the gastric tube 100 away from the container 200 based on the flow of material within the gastric tube 100; in the process of extracting the gastric contents by the negative pressure device, the gastric tube 100 is moved towards the suction device by the flow of the substance in the gastric tube 100, and the frequent regular alternating movement of the direction can cause the connection between the first connecting member 110 and the second connecting member 410 to be loosened easily, so that the problem of air leakage or liquid leakage occurs, and therefore, the stable connection between the first connecting member 110 and the second connecting member 410 is required.
According to a preferred embodiment, the second connection comprises a plurality of coaxially stepped sections. Preferably, the number of segments is 3, decreasing in diameter in a direction from the distal end to the proximal end of the second connector, being a first segment, a second segment and a third segment, respectively. The proximal end is the end near the patient and the distal end is the end far away from the patient. The nutrient solution input runner is arranged at the central axis of the second connecting piece. Preferably, the length of the third section is about twice the sum of the lengths of the first section and the second section. Preferably, a rotary locking structure is provided on the third section, by means of which a tight and stable connection with the first connection piece is possible. When making things convenient for first connecting piece and second connecting piece to connect, avoid first connecting piece and second connecting piece to deviate from easily, prevent to a certain extent to pull. Preferably, a rotation engagement region which is in shape fit with the third section is provided in the first connecting member. Preferably, the first and second sections of the second connector are in contact connection with at least the "flare" flared inner wall of the first connector. Preferably, the rotating engagement structure of the second portion of the third section may be, for example, a thread, a clamping groove, or the like. Preferably, the force condensation and form fit connection may help the material resist aging, as fatigue and wear of the material occurs over a longer period of time.
According to a preferred embodiment, the end edges of the first section 411 and the second section 412 of the second connector 410, which are in contact with the inner wall of the flare, are provided with a ring of flexible material annular suction cups, the middle of the outer flange of which is connected to the end edges, and the openings of which are curved towards the inner wall of the "trumpet" flare of the first connector 110. When the ends of the first section 411 and the second section 412 are in contact with the inner wall of the connection port 240 of the "flare", the inner curved surface of the annular suction cup is in contact with the inner wall of the "flare" due to pressure, and gradually comes into full contact with the inner wall as the pressing force increases, at this time, the inner curved surface of the annular suction cup and the inner wall of the connection port 240 form a vacuum environment due to the air in the inner curved surface of the annular suction cup being pressed out by the pressing force, at this time, the inner walls of the suction cup and the connection port 240 are pressed tighter due to the presence of atmospheric pressure, so that the first section 411 and the second section 412 of the second connection member 410 are not easily disconnected from the "flare" of the first connection member 110, so that the first connection member 110 and the second connection member 410 are not displaced relative to each other under the influence of the tendency that the regular alternation and the opposite directions are present.
Preferably, the first and second connectors are connected by a screw thread, the first portion of the third section of the second connector is provided with an external screw thread, the portion of the first connector which mates with the first portion is provided with an internal screw thread, the internal screw thread and the external screw thread being matched with each other to connect the first and second connectors.
According to a preferred embodiment, a nutrient solution input flow path is provided at a central axis of the second coupling member 410, one end of the first tube 230 connected to the return pump 300 opposite to the return pump 300 is communicated with the nutrient solution input flow path, and an inner diameter of the first tube 230 is equal to an inner diameter of the nutrient solution input flow path but smaller than an inner diameter of the gastric tube 100. Preferably, the first tube 230 for drawing the diverted gastric content into the container 200 is connected to the outer wall of the third section 414 of the second connector 410 during the drawing of the gastric content, which may be integrally formed or fixedly connected in one piece. Preferably, a plurality of through holes 413 are formed in the first section 411 and the second section 412 parallel to the central axis, and when the gastric contents are sucked, the gastric contents enter the flow channel formed by the outer wall of the first tube 230 and the inner wall of the second tube 330 through the plurality of through holes 413, and then enter the container 200 again. Preferably, a one-way valve is provided in the second tube 330, the one-way valve being configured to allow flow from within the container 200 towards the stomach tube 100 and to prevent flow of the contents of the stomach tube 100 towards the container 200, to avoid that in case of aspiration of stomach contents, the stomach contents flow from the second tube 330 into the reflux pump 300, affecting the measurement of the amount of the contents and affecting the operation of the reflux pump 300. Preferably, a one-way valve is provided at the end of the second tube 330 adjacent to the gastric tube 100. Preferably, the inner diameter of the first tube 230 is equal to the inner diameter of the gastric tube 100 in order to create a sufficient negative pressure to draw the gastric contents.
In use, the gastric tube 100 is inserted into the patient's stomach through one end of the patient's esophagus and the other end is held within the patient's nasal cavity, the gastric tube 100 and dual lumen tube 400 can be connected outside the patient's body using the first connector 110 and the second connector 410, and the container 200 is hung on the bedside such that the container 200 remains upright and the second end 220 of the container 200 is near the ground while the first end 210 is away from the ground, and delivery and aspiration of stomach contents can be performed by controlling the reflux pump 300 actuator and a negative pressure device external to the container 200. The flow of nutrient solution within the tubing can be controlled by controlling the modes of operation of the return pump 300 and the negative pressure device.
Example 2
This example is a further addition and modification to example 1.
The embodiment provides a circulating system capable of detecting nutritional ingredients, and the system comprises a detection module, an analysis module, a control module and a working module. The detection module is used for detecting indexes and parameters of the stomach and the stomach contents of the patient, transmitting the detected information to the analysis module, and sending control signals to the working module through the control module after the analysis module analyzes the indexes and the parameters so as to control the working module to enter different working modes according to the analysis of the stomach and the stomach contents, so that the detection module is suitable for patients with different illness states and different nursing processes. The detection module includes a component analyzer provided in the container 200, and the component analyzer is provided at a first end 210 of the container 200 near the ground surface, and is capable of detecting a component in the content stored in the container 200. By detecting the nutrient content and PH of the gastric contents and transmitting the detected data to an analysis module, the analysis module determines whether the gastric contents in the container 200 need to be returned by analyzing and determining how much nutrient content and how much gastric acid content the gastric contents in the container 200 contain. And controlling the return transfusion at a flow rate according to the concentration of the gastric content and the concentration of the gastric acid. The working module includes a negative pressure generating device and a return pump 300. The control module controls the rate of return of the nutrient solution by controlling the negative pressure generating means and the actuator of the return pump 300. The detection range of the nutritional component analysis module may be, for example: saccharide concentration analysis, protein concentration analysis, PH detection analysis, inorganic salt concentration detection analysis to determine whether reinfusion and the speed of reinfusion and aspiration and the cumulative amount of reinfusion and aspiration are required according to the current state.
In the use process, the control module firstly controls the second branch of the opening input end of the reflux pump to carry out the transportation of the preset nutrient solution components according to the preset program, and controls the display module to display the type, the real-time flow rate, the average flow rate and the accumulated input quantity of the input nutrient solution according to the detection data of the flow rate detection device arranged in the second pipe. After the nutrient solution T1 is input, the negative pressure generating device is controlled to extract nutrient substances in the stomach through the stomach tube, and the suction is stopped when the flow rate detecting device detects that only intermittent fluid flow exists in the tube. The control module controls the display module to display the actual extraction flow rate, the average extraction flow rate and the accumulated extraction amount based on the detection data of the flow rate detection device, and the control module performs component analysis on the extracted gastric contents according to the component analyzer in the container and controls the display module to display the component analysis results such as protein content, PH, saccharide content, inorganic ion content and the like. The control module calculates the digestion condition of the patient on various nutrients based on the content analysis of the nutrients, and calculates the amount of the nutrients and the total energy accumulated and absorbed by the patient in combination with the total amount of the input nutrients so as to analyze the digestion capacity and the metabolism level of the patient. The control module adjusts the speed and total amount of the input nutrient solution in the preset program and even the formula of the nutrient solution according to the calculated digestion capacity and metabolic level changes to ensure nutrient absorption by the patient with minimal stress on the patient's digestive system.
According to a preferred embodiment, the control module determines the metabolic level of the patient in combination with the patient's physiological index detection, such as blood glucose level, etc., data characterizing the patient's vital activity status and the amount of nutrients the patient has ingested. When the metabolic level of the patient is calculated to be lower than the average metabolic level, the control module controls the reflux pump to input the amount of nutrient substances slightly greater than the metabolic level of the patient at the next feedback after a certain period, controls the negative pressure generating device again to suck back the gastric contents after the time of inputting T1, and calculates the absorbed energy according to the data analyzed by the component analyzer, and confirms the amount of the nutrient substances absorbed by the patient so as to calculate the metabolic level of the patient again. Based on the multiple repetitions, the average metabolic level of the patient and the average energy required daily are confirmed and displayed by the display device.
According to a preferred embodiment, the control module controls the withdrawal of gastric contents after a time T1 after the input of a quantitative nutrient solution based on a preset program, and confirms the average digestion capacity of the patient for each nutrient during the time T1 based on the amounts of the withdrawn gastric contents, and calculates the proportion of the patient's absorption, confirming the patient's nutrient absorption preference. In the case where there is a significant preference for nutrient absorption by the patient, for example, in the case where the absorption rate of a protein nutrient is high and the absorption rate of a nutrient such as lactose is low, the content of the protein nutrient in the nutrient solution is increased based on the scientific ratio, and lactose is replaced by the remaining nutrient, for example, galactose, so as to adapt to the digestion and absorption ability of the patient and improve the nutrient solution formula. And based on the respective average digestion capacities of the patient, the control module calculates the digestion capacity suitable for the patient based on the existing nutrient solution formula, does not cause a large amount of residual nutrient solution input flow rate of the stomach of the patient, and controls the reflux pump to reflux at the speed at the next feedback. By repeating the analysis of the composition of the incoming nutrient solution and the withdrawn stomach contents a number of times, the program is gradually modified to form a return regimen that is least burdensome to the patient.
Meanwhile, a large number of analysis results can be finally used for integrated analysis of digestion capacity of the whole patient, rules are found, and scientific research development is promoted.
According to a preferred embodiment, the control means confirms the content of each nutrient and digestive juice in the extracted contents based on an analysis of the composition of the extracted stomach contents, and determines whether to feedback the contents, at what flow rate, and the total amount of feedback required based on a preset threshold value. When a return is required, the first branch of the return pump connected to the interior of the container is controlled to be opened and the second branch is controlled to be closed, so that the content pumped out of the container is returned to the patient. Preferably, the feedback adjustment step in the present embodiment is set to:
when the detection module detects that the concentration of the essential nutrients in the contents stored in the container 200 is above a first threshold, the first threshold is one-half of the nutrients originally present in the recipe. And the amount of the original nutrient in the formula minus the first threshold is less than the amount of the nutrient that should be absorbed as specified in the daily nutrient intake standard. The control module controls the operation of the return pump 300 actuator in a preset first program. The first procedure is: the reinjection is initiated at a first speed and gradually increased over a first time period to maintain the second speed reinjection after reinjection at the second speed. Preferably, the first speed is 1/3-2/3 of the input speed in the preset program. The second speed is an increase in input speed of 20-30mL/h.
When the detection module detects that the nutrient concentration of the contents stored in the container 200 is above a second threshold, the second threshold is one third of the nutrient in the recipe. And is less than the amount of the nutrient that should be absorbed as specified in the daily nutrient intake standard, minus the first threshold value for the amount of the nutrient originally in the formula. The control module controls the operation of the return pump 300 actuator in a preset second program. The second procedure is: the reinfusion at the third rate is initiated and gradually increased over the first time to maintain the fourth rate after reinfusion at the fourth rate. Preferably, the third speed is 1/2-5/6 of the input speed in the preset program. The fourth speed is increased by 20-30mL/h for the third speed.
Preferably, the first threshold value may be, for example, an integrin (non-hydrolyzed protein) content of about 10g/1000mL, and the second threshold value may be, for example, an integrin (non-hydrolyzed protein) content of about 20g/1000mL. Preferably, the first speed may be, for example, 40-60mL/h, the first time may be, for example, 0.5-2h, and the second speed may be, for example, 100-150mL/h. The third speed may be, for example, 20-50mL/h and the fourth speed may be, for example, 60-80mL/h.
According to a preferred embodiment, the system further comprises a display module, which is in data connection with the analysis module. The display module is used for displaying the data sent by the analysis module in real time detection, such as PH, sugar content, protein content, inorganic salt content, back transfusion and suction tube flow rate and accumulated fluid quantity extracted and returned in the stomach content which is output currently. So that medical staff can know the current condition of the patient through the display module to carry out auxiliary diagnosis.
It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents. The description of the invention encompasses multiple inventive concepts, such as "preferably," "according to a preferred embodiment," or "optionally," all means that the corresponding paragraph discloses a separate concept, and that the applicant reserves the right to filed a divisional application according to each inventive concept. Also, throughout this document, the word "preferably" is used in a generic sense to mean only one alternative, and not to be construed as necessarily required, so that the applicant reserves the right to forego or delete the relevant preferred feature at any time.
Claims (10)
1. A circulatory system capable of detecting the composition of a nutrient solution, sucking the residual contents of the stomach into an external container (200) for storage and re-infusing the stomach contents into the stomach or retaining the stomach contents in the container (200) based on the composition of the stomach contents stored in the container (200),
At least comprises a detection module arranged in the container (200), an analysis module for analyzing detection data, a control module for sending control signals based on the data analyzed by the analysis module and a working module for receiving the control signals of the control module and changing working states based on the control signals,
the detection module is used for detecting indexes and parameters of the stomach and the stomach contents of the patient, transmitting the detected information to the analysis module, analyzing the indexes and the parameters by the analysis module, transmitting the data to the control module, controlling the working module to enter different working modes according to the analysis data of the stomach and the stomach contents,
the control module calculates the digestion condition of the patient on various nutrients based on the content analysis of the nutrients of the extracted gastric contents, and calculates the accumulated absorbed nutrition amount and total energy of the patient by combining the total input nutrition amount so as to analyze the digestion capacity and metabolism level of the patient;
the control module changes and adjusts the speed and total amount of the input nutrient solution in the preset program according to the calculated digestion capacity and metabolism level, and adjusts the formula of the nutrient solution,
the double-cavity tube (400) connected with the container (200) is connected with the stomach tube (100) through a first connecting piece (110) and a second connecting piece (410), wherein the first connecting piece (110) is in fit connection with the second connecting piece (410), the second connecting piece (410) is arranged to be a stepped connecting piece, the second connecting piece (410) comprises a plurality of coaxially and stepwisely distributed sections, at least the first section and the second section of the second connecting piece (410) are in contact connection with the inner wall of the flaring of the "horn shape" of the first connecting piece, an annular sucking disc made of a circle of flexible materials is arranged on the edge of the end, contacted with the inner wall of the flaring, of the first section (411) and the second section (412) of the second connecting piece (410), and the opening of the annular sucking disc is bent towards the inner wall of the flaring of the "horn shape" of the first connecting piece (110).
2. The circulation system of claim 1, wherein the circulation system operates as follows:
when the detection module detects that the nutrient concentration of the gastric content stored in the container (200) is higher than a first threshold value, the control module controls the reflux pump (300) actuator to work in a preset first program; the first procedure is: initiating a reinfusion at a first speed and gradually accelerating within a first time to maintain a second speed reinfusion after the reinfusion at the second speed;
when the detection module detects that the nutrient concentration of the gastric content stored in the container (200) is higher than a second threshold value, the control module controls the reflux pump (300) actuator to work in a preset second program; the second procedure is: the reinfusion at the third rate is initiated and gradually increased over the first time to maintain the fourth rate after reinfusion at the fourth rate.
3. The circulation system according to claim 1 or 2, wherein the detection module comprises a component analyzer provided at a first end (210) of the container (200) near the ground, the component analyzer being capable of detecting the nutritional components and PH of the stomach contents in the container (200) and transmitting detection data to the analysis module, the analysis module analyzing how much of each nutritional component and gastric acid content in the stomach contents generates an analysis result based on the detection data of the component analyzer, and the control module determining whether the stomach contents have a feedback value based on the analysis result and generating and transmitting a control signal to the operation module.
4. A nutrient solution circulating device is characterized by comprising at least a gastric tube (100) which constructs a nutrient channel reaching the stomach of a patient from the outside through esophagus, a container (200) which is connected with the gastric tube (100) and can generate negative pressure to pump gastric contents out of the stomach and store the gastric contents in the stomach so as to avoid lung infection caused by the gastric contents not entering the lung by patient control error, and a reflux pump (300) which is arranged in the container (200) and can convey the gastric contents in the container (200) to the stomach of the patient from the gastric tube (100),
the control module controls the operation modes of the reflux pump (300) and the negative pressure device,
the control module calculates the digestion condition of the patient on various nutrients based on the content analysis of the nutrients of the extracted gastric contents, and calculates the accumulated absorbed nutrition amount and total energy of the patient by combining the total input nutrition amount so as to analyze the digestion capacity and metabolism level of the patient;
the control module changes and adjusts the speed and total amount of the input nutrient solution in the preset program according to the calculated digestion capacity and metabolism level, and adjusts the formula of the nutrient solution,
the double-cavity tube (400) connected with the container (200) is connected with the stomach tube (100) through a first connecting piece (110) and a second connecting piece (410), wherein the first connecting piece (110) is in fit connection with the second connecting piece (410), the second connecting piece (410) is arranged to be a stepped connecting piece, the second connecting piece (410) comprises a plurality of coaxially and stepwisely distributed sections, at least the first section and the second section of the second connecting piece (410) are in contact connection with the inner wall of the flaring of the "horn shape" of the first connecting piece, an annular sucking disc made of a circle of flexible materials is arranged on the edge of the end, contacted with the inner wall of the flaring, of the first section (411) and the second section (412) of the second connecting piece (410), and the opening of the annular sucking disc is bent towards the inner wall of the flaring of the "horn shape" of the first connecting piece (110).
5. The circulation device according to claim 4, wherein in normal operation the container (200) has a first end (210) facing away from the ground and a second end (220) facing away from the ground, the first end (210) of the container (200) being provided with a connection port (240) for connection to an external negative pressure generating device and a first tube (230) for connection to an end of the gastric tube (100) not disposed in the stomach,
in case the container (200) internally generates a negative pressure based on the operation of the connected external negative pressure generating means, the gastric content falls from within the stomach through the gastric tube (100) and first tube (230) based on the negative pressure then into the second end (220) of the container (200) based on gravity.
6. The circulation device according to claim 5, wherein the first tube (230) inner diameter is set equal to the inner diameter of the gastric tube (100) in a manner that provides a negative pressure into the gastric tube of sufficient magnitude to facilitate aspiration of gastric contents.
7. The circulation device according to claim 4, wherein the reflux pump (300) comprises an input (310) for sucking in fluid and an output (320) for outputting fluid, the input (310) of the reflux pump (300) being arranged at the second end (220) of the container (200) in such a way that a sufficient reflux of the stomach contents in the container (200) is possible.
8. The circulation device according to claim 7, wherein the output end (320) of the reflux pump (300) is provided with a second tube (330) in such a way that gastric contents in the container (200) can be re-fed back into the stomach through the gastric tube (100), the second tube (330) being arranged coaxially with the first tube (230) near an end of the gastric tube (100) and being located in the first tube (230).
9. The circulation device according to claim 8, wherein the first tube (230) and the second tube (330) constitute a double lumen tube (400), the double lumen tube (400) being connected to the gastric tube (100) by means of a first connection (110) and a second connection (410) in such a way that the connection of the device can be changed without changing the suction and delivery state of the circulation device.
10. The circulation device according to claim 9, wherein the first connection member (110) and the second connection member (410) are connected by means of an annular suction cup provided at an end edge of the second connection member (410) in a manner that can accommodate a frequently varying flow direction of the fluid in the pipe.
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| CN202110985486.9A CN113559340B (en) | 2021-08-25 | 2021-08-25 | Circulating system capable of detecting nutrient solution components |
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| CN202110985486.9A CN113559340B (en) | 2021-08-25 | 2021-08-25 | Circulating system capable of detecting nutrient solution components |
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| US20080086076A1 (en) * | 2007-05-17 | 2008-04-10 | Allen Gerber | Anti-aspiration device with content monitoring functionality |
| WO2008107872A2 (en) * | 2007-03-02 | 2008-09-12 | Art Healthcare Ltd. | Interactive ngt system |
| US20120283627A1 (en) * | 2011-05-06 | 2012-11-08 | Gerald Moss | Method for combined gastrointestional feeding and aspiration |
| WO2018109757A1 (en) * | 2016-12-12 | 2018-06-21 | Art Healthcare Ltd. | Systems and methods for automatic management of reflux during enteral feeding |
| JP7301823B2 (en) * | 2017-10-09 | 2023-07-03 | ザ インサイズ カンパニー リミテッド | Nutrient recycling device |
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| US6482170B1 (en) * | 2000-09-18 | 2002-11-19 | Corpak, Inc. | Apparatus and method for relieving gastric pressure during enteral feeding |
| US6447472B1 (en) * | 2000-10-19 | 2002-09-10 | Gerald Moss | Method and pump apparatus for combined gastro-intestinal feeding and aspiration |
| KR20040104158A (en) * | 2003-06-03 | 2004-12-10 | 에이씨엠 메디컬 테크놀로지 엘엘씨 | Measuring Gastrointestinal Parameters |
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