Newborn gastrointestinal decompression and exhaust device and operation method

Abstract

The embodiment of the invention provides a newborn gastrointestinal decompression and exhaust device and an operation method.The newborn gastrointestinal decompression and exhaust device comprises a stomach tube, a four-way joint, a first valve, an exhaust feeding assembly, a sixth tube body and a pressure monitoring assembly, the stomach tube is connected with the four-way joint, and the pressure monitoring assembly is used for monitoring the pressure in the stomach and intestine of the newborn; the exhausting and feeding assembly is used for reducing gastrointestinal pressure of the newborn and relates to the field of medical instruments for the newborn. The pressure monitoring assembly is directly arranged in the stomach tube, pressure data in the gastrointestinal cavity of the newborn can be obtained in real time, interference caused by factors such as esophageal contraction and respiratory movement in a traditional external monitoring method is avoided, and a more real and reliable intracavity pressure value is provided. Through pressure monitoring data, medical staff can quickly assess whether the newborn has early signs such as gastric motility disorder (such as gastroparesis) or intestinal obstruction and the like, and a scientific basis is provided for clinical diagnosis and treatment decision.

Description

Technical Field

[0001] The present invention relates to the field of neonatal medical equipment, and in particular to a neonatal gastrointestinal decompression and exhaust device and an operating method thereof. Background Art

[0002] Clinically, newborns are prone to gastric retention, intestinal flatulence and other problems due to their incompletely developed gastrointestinal tract, which may even lead to breathing difficulties or other complications in severe cases. Therefore, timely and effective gastrointestinal decompression is crucial for the treatment of newborns.

[0003] However, the gastrointestinal decompression devices in the prior art usually have the following problems: first, traditional gastrointestinal decompression devices often only have a single function, such as simple gas drainage or liquid feeding, and lack multi-functional integration, resulting in cumbersome clinical operations; second, existing devices usually lack real-time monitoring functions for gastrointestinal pressure and cannot provide accurate pressure data support for medical staff; in addition, in actual operation, due to the thin and sensitive gastrointestinal wall of newborns, traditional devices are prone to cause discomfort or injury to the children during use. Summary of the invention

[0004] According to an embodiment of the present invention, a neonatal gastrointestinal decompression and exhaust device and an operating method are provided to solve the technical problems existing in the above-mentioned background technology.

[0005] In a first aspect of the present invention, a neonatal gastrointestinal decompression and exhaust device is provided.

[0006] The neonatal gastrointestinal decompression and exhaust device comprises a gastric tube, a four-way valve, a first valve, an exhaust and feeding component, a sixth tube body and a pressure monitoring component. The gastric tube is connected to the four-way valve, the four-way valve is connected to the first valve, the first valve is connected to the sixth tube body, the sixth tube body is connected to the exhaust and feeding component, the pressure monitoring component is arranged inside the gastric tube, the pressure monitoring component is used to monitor the pressure in the neonatal gastrointestinal tract, and the exhaust and feeding component is used to decompress the neonatal gastrointestinal tract.

[0007] Preferably, the pressure monitoring assembly comprises an inspection cover, a pressure sensor, a sleeve and a hydrophobic membrane; The inspection cover is connected to the side wall of the gastric tube, the inner wall of the inspection cover is connected to the sleeve, the hydrophobic membrane is connected to an end of the sleeve away from the inspection cover, and the pressure sensor is arranged in the sleeve and on the side close to the hydrophobic membrane.

[0008] Preferably, it also includes a gastric lavage component and a second valve, wherein the gastric lavage component includes a bag body, a first liquid outlet pipe, a second liquid outlet pipe, a peristaltic pump, a first tube body, a fifth one-way valve, a three-way connection, a second tube body, a fourth one-way valve, a negative pressure pump and a waste liquid tank; The first liquid outlet pipe and the second liquid outlet pipe are connected to the bag body, the first liquid outlet pipe is connected to the input end of the peristaltic pump, the output end of the peristaltic pump is connected to the fifth one-way valve through the first tube body, the fifth one-way valve is connected to the three-way valve, the three-way valve is connected to the four-way valve through the second valve, the three-way valve is connected to the second tube body through the fourth one-way valve, the second tube body is connected to the input end of the negative pressure pump, and the output end of the negative pressure pump is connected to the waste liquid tank.

[0009] Preferably, the exhaust feeding assembly comprises a first syringe, a cover body, a first top cover, a second syringe, a second top cover, a first connecting rod, a second connecting rod, a third one-way valve, a first piston and a second piston; The first syringe is connected to the second syringe, the first piston and the second piston are slidably connected to the inner wall of the first syringe and the inner wall of the second syringe respectively, the first syringe is connected to the third one-way valve, the third one-way valve is connected to the sixth tube body, the cover body is connected to the side of the first syringe close to the sixth tube body, the first piston is connected to the first top cover through the second connecting rod, the second piston is connected to the first connecting rod, and the first connecting rod is slidably connected to the second top cover; It also includes a third tube body and a third valve. The third tube body is detachably connected to the second syringe. The third tube body is connected to a sixth one-way valve. The third tube body is connected to the third valve, and the third valve is connected to the four-way valve.

[0010] Preferably, it also includes an annular cylinder, an annular plate, a first one-way valve, a second one-way valve, a fourth tube body and an air bag; The annular cylinder is connected to the first syringe, the inner wall of the annular cylinder is slidably connected to the annular plate, the bottom of the annular cylinder is connected to a first one-way valve, the bottom of the annular cylinder is connected to the fourth tube body through a second one-way valve, the fourth tube body is connected to the airbag, and the airbag is connected to the top of the second syringe.

[0011] Preferably, it also includes an adjustment mechanism; The adjustment mechanism includes a positioning rod, a plurality of notches and a rotating plate; The positioning rod is connected to the first connecting rod, the positioning rod is slidably connected to the second top cover, a plurality of notches are processed on the positioning rod, the rotating plate is rotatably connected to the second top cover, and the rotating plate can be clamped in the notches.

[0012] Preferably, a pressure relief assembly is provided on the second piston; The pressure relief assembly includes a top plate, a rod body, a stopper and a spring; The top plate is connected to the second piston, the top plate is slidably connected to the rod body, the rod body is connected to the stopper, the stopper is slidably connected to the second piston, the spring is sleeved on the rod body, and the two ends of the spring are respectively connected to the bottom of the top plate and the top of the stopper.

[0013] Preferably, it also includes a connection mechanism; The engagement mechanism comprises an extension piece and a clamping plate; The extending member is connected to the first top cover, the clamping plate is rotatably connected to the extending member, and the clamping plate is clamped on the second top cover.

[0014] In a second aspect of the present invention, a method for operating a neonatal gastrointestinal decompression and exhaust device is provided.

[0015] The production method comprises: obtaining the gastrointestinal pressure value of the neonate in the non-feeding stage at each time period, and constructing a first neonate gastrointestinal pressure value curve according to the collected pressure value; Obtaining the gastrointestinal pressure value of the neonate during the feeding stage at each time period, and constructing a second neonate gastrointestinal pressure value curve based on the collected pressure values; According to the first neonatal gastrointestinal pressure value curve and the second neonatal gastrointestinal pressure value curve, the gas reduction amount of the stomach and intestine is adjusted during the feeding process.

[0016] Preferably, a gastric tube is inserted into the neonate's gastrointestinal tract through the nasal cavity according to the medical operation procedure. Ensure that the insertion depth is appropriate; Perform pressure monitoring and activate the pressure sensor in the pressure monitoring component to monitor the pressure in the newborn's gastrointestinal tract in real time. Medical staff view pressure data through external display and analysis equipment; Perform gastric lavage: Start the peristaltic pump: Adjust the flow rate of the peristaltic pump to an appropriate value so that the gastric lavage solution flows into the three-way valve. Open the second valve: Control the gastric lavage solution to enter the gastric tube through the four-way valve, and then flow into the gastrointestinal tract of the newborn to perform gastric lavage. Turn off the peristaltic pump: When the gastric lavage is completed, turn off the peristaltic pump and stop the input of the gastric lavage solution. Start the negative pressure pump: Turn on the negative pressure pump to extract the waste liquid in the gastrointestinal tract of the newborn and flow it into the waste liquid tank. Turn off the negative pressure pump and the second valve: After completing the waste liquid extraction, close the negative pressure pump and the second valve to ensure that the system is sealed; Perform feeding operation: close the second valve, remove the cover body, inject the soaked milk powder into the first syringe, the first piston, the second connecting rod and the first top cover in the first syringe move upward, and after completion, re-fix the cover body on the first syringe, push the first top cover during feeding, the milk powder in the first syringe is discharged from the third one-way valve, and enters the stomach tube through the second tube body, the first valve and the four-way to feed the newborn. The first top cover will drive the annular plate to move downward during the downward movement, and the annular plate will inject the air inside the annular tube into the airbag. The airbag will contact the second top cover during the vertical expansion process and drive the second top cover to move upward. The second top cover will indirectly drive the second piston to move upward. The second piston will draw the gas inside the gastrointestinal tract of the newborn from the stomach tube into the second syringe during the upward movement.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The present invention provides a neonatal gastrointestinal decompression and exhaust device and operating method. By directly setting the pressure monitoring component inside the gastric tube, the pressure data in the neonatal gastrointestinal cavity can be obtained in real time, avoiding the interference caused by factors such as esophageal contraction and respiratory movement in traditional external monitoring methods, and providing a more real and reliable intracavity pressure value. Through the pressure monitoring data, medical staff can quickly assess whether the neonate has early signs such as gastric motility disorders (such as gastroparesis) or intestinal obstruction, providing a scientific basis for clinical diagnosis and treatment decisions.

[0018] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 A schematic diagram of a three-dimensional connection structure of a neonatal gastrointestinal decompression and exhaust device and an operating method according to an embodiment of the present invention is shown; Figure 2 An exploded view of a neonatal gastrointestinal decompression and exhaust device and an operating method according to an embodiment of the present invention is shown; Figure 3 A schematic diagram showing the connection structure of the pressure monitoring assembly of the neonatal gastrointestinal decompression and exhaust device and operation method according to an embodiment of the present invention; Figure 4A schematic diagram showing the connection structure of the second one-way valve, the fourth tube body and the air bag of the neonatal gastrointestinal decompression and exhaust device and operation method according to an embodiment of the present invention; Figure 5 A schematic diagram showing the connection structure of the exhaust and feeding assembly of the neonatal gastrointestinal decompression and exhaust device and operation method according to an embodiment of the present invention is shown; Figure 6 A schematic diagram showing the connection structure of the pressure relief assembly of the neonatal gastrointestinal decompression and exhaust device and operation method according to an embodiment of the present invention is shown; Figure 7 A partial enlarged view of a pressure relief component of a neonatal gastrointestinal decompression and exhaust device and an operating method according to an embodiment of the present invention is shown; Figure 8 A schematic diagram showing the connection structure of the air bag and the fourth tube body of the neonatal gastrointestinal decompression and exhaust device and operation method according to an embodiment of the present invention; Fig. 9 A schematic diagram of the connection structure of a cleaning mechanism of a neonatal gastrointestinal decompression and exhaust device and an operating method according to an embodiment of the present invention is shown.

[0020] The reference numerals are as follows: 1-gastric tube, 2-cleaning mechanism, 201-guide plate, 202-pressing roller, 203-limiting frame, 204-limiting plate, 205-connecting shaft, 206-first guide groove, 207-second guide groove, 3-gastric lavage component, 301-bag body, 302-first liquid outlet pipe, 303-peristaltic pump, 304-second liquid outlet pipe, 305-first tube body, 306-fifth one-way valve, 307-three-way, 308-negative pressure pump, 309-waste liquid tank, 310-second tube body, 311-fourth one-way valve, 4-pressure monitoring component, 401-sleeve, 402-inspection cover, 403-pressure sensor, 404-hydrophobic membrane, 5-exhaust feeding component, 501-first syringe, 502-cover body, 503-first top cover, 504- The second syringe, 505-the second top cover, 506-the first connecting rod, 507-the third one-way valve, 508-the first piston, 509-the second piston, 510-the second connecting rod, 7-the connecting mechanism, 701-the extension piece, 702-the splint, 8-the adjusting mechanism, 801-the positioning rod, 802-the notch, 803-the rotating plate, 9-the pressure relief assembly, 901-the top plate, 902-the rod body, 903-the stopper, 904-the spring, 10-the annular cylinder, 11-the annular plate, 12-the second one-way valve, 13-the fourth tube body, 14-the airbag, 15-the first one-way valve, 16-the fifth tube body, 17-the third tube body, 18-the third valve, 19-the first valve, 20-the sixth tube body, 21-the second valve, 22-the four-way, 23-the sixth one-way valve. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0023] like Figures 1 to 9 As shown, the neonatal gastrointestinal decompression and exhaust device comprises a gastric tube 1, a four-way 22, a first valve 19, an exhaust feeding component 5, a sixth tube body 20 and a pressure monitoring component 4. One end of the gastric tube 1 is inserted into the gastrointestinal tract of the neonate through the nasal cavity, and the other end is connected to one of the interfaces of the four-way 22. The other interface of the four-way 22 is connected to the first valve 19, and this connection method also ensures the sealing performance. The first valve 19 is used to control the on-off of the liquid flow path. The first valve 19 is connected to the sixth tube body 20, and the sixth tube body 20 is further connected to the exhaust feeding component 5. The exhaust feeding component 5 is used to discharge the gas accumulated in the gastrointestinal tract of the neonate, thereby achieving the purpose of gastrointestinal decompression. The pressure monitoring component 4 is arranged inside the gastric tube 1, and the function of the pressure monitoring component 4 is to monitor the pressure condition in the gastrointestinal tract of the neonate in real time.

[0024] In actual use, the medical staff first gently inserts the gastric tube 1 into the gastrointestinal tract of the newborn according to the standard medical operation process. At this time, the pressure monitoring component 4 immediately starts to work, providing data support for gastrointestinal pressure monitoring. Since the pressure monitoring component 4 is set in the gastric tube, it can directly measure the gastrointestinal cavity pressure, reduce the interference caused by esophageal contraction or respiratory movement, and provide more realistic cavity pressure data. This has important diagnostic value for evaluating gastric motility disorders (such as gastroparesis) and early signs of intestinal obstruction.

[0025] In this embodiment, the pressure monitoring assembly 4 includes an inspection cover 402, a pressure sensor 403, a sleeve 401 and a hydrophobic membrane 404. The inspection cover 402 is connected to the side wall of the gastric tube 1 in a detachable manner such as threaded connection. The detachable design of the inspection cover 402 facilitates the inspection and maintenance of the pressure monitoring assembly 4 when necessary. The inner wall of the inspection cover 402 is connected to the sleeve 401, and the sleeve 401 plays a role in protecting the pressure sensor 403, which can avoid affecting the normal operation of the pressure sensor 403 when food is injected. The hydrophobic membrane 404 is arranged at one end of the sleeve 401 away from the inspection cover 402. The hydrophobic membrane 404 has good air permeability and can allow gas to pass through, while effectively blocking the liquid in the gastrointestinal tract from entering the sleeve 401, thereby preventing the liquid from damaging the pressure sensor 403. The monitoring end of the pressure sensor 403 is arranged inside the sleeve 401 and close to one side of the hydrophobic membrane 404. When the gas in the gastrointestinal tract enters the sleeve 401 through the hydrophobic membrane 404, the pressure sensor 403 can sense the change in gas pressure and convert the pressure signal into an electrical signal, which is transmitted to an external display and analysis device (not shown in the figure) through a wire connected to the pressure sensor 403, so that medical staff can grasp the pressure situation in the gastrointestinal tract of the newborn in real time.

[0026] In actual use, when the pressure in the neonatal gastrointestinal tract increases, the pressure sensor 403 senses the pressure change and transmits the signal to the external device. If the pressure exceeds the preset safety threshold, the medical staff can handle it in time. At the same time, the medical staff can regularly check the working status of the pressure sensor 403 through the inspection cover 402 to ensure that the pressure sensor 403 is operating normally, providing reliable pressure monitoring guarantee for the neonatal gastrointestinal decompression.

[0027] In this embodiment, a gastric lavage assembly 3 and a second valve 21 are also included. The gastric lavage assembly 3 includes a bag body 301, a first liquid outlet pipe 302, a second liquid outlet pipe 304, a peristaltic pump 303, a first tube body 305, a fifth one-way valve 306, a three-way 307, a second tube body 310, a fourth one-way valve 311, a negative pressure pump 308 and a waste liquid tank 309. The bag body 301 is used to store a gastric lavage solution, and the gastric lavage solution can be a physiological saline solution to ensure safety and no stimulation to the newborn. The first liquid outlet pipe 302 and the second liquid outlet pipe 304 are both connected to the bag body 301, and the connection part adopts a heat sealing or sealing sleeve connection process to ensure the sealing of the connection and prevent the solution from leaking.

[0028] The first liquid outlet pipe 302 is connected to the input end of the peristaltic pump 303. The peristaltic pump 303 is used as the power source for the delivery of the gastric lavage solution. The working principle of the peristaltic pump 303 is to squeeze the pump tube through the roller to make the liquid in the tube flow in one direction. This delivery method can control the flow rate and flow of the solution to ensure the safety and effectiveness of the gastric lavage process. The output end of the peristaltic pump 303 is connected to the fifth one-way valve 306 through the first tube body 305. The function of the fifth one-way valve 306 is to prevent the liquid from flowing back and ensure that the gastric lavage solution can only flow in one direction, from the bag body 301 through the peristaltic pump 303 and the first tube body 305 to the three-way 307. The fifth one-way valve 306 is connected to the three-way 307, and the three-way 307 is connected to the four-way 22 through the second valve 21. The second valve 21 is used to control whether the gastric lavage solution enters the gastric tube 1 and then enters the gastrointestinal tract of the newborn. By adjusting the switch of the second valve 21, the gastric lavage mode can be started as needed.

[0029] The three-way connection 307 is also connected to the second tube body 310 through the fourth one-way valve 311, which also prevents liquid backflow, ensuring that the waste liquid extracted from the gastrointestinal tract can only flow into the second tube body 310 in one direction. The second tube body 310 is connected to the input end of the negative pressure pump 308, which provides negative pressure suction to extract the waste liquid in the gastrointestinal tract of the newborn. The output end of the negative pressure pump 308 is connected to the waste liquid tank 309, which is used to collect the extracted waste liquid.

[0030] In actual use, when it is necessary to perform gastric lavage on a newborn, the medical staff first confirms that the components of the gastric lavage assembly 3 are correctly connected and in normal working condition, and also needs to close the third valve 18 and the first valve 19. Put an appropriate amount of gastric lavage solution with appropriate temperature and meeting the gastric lavage standards for newborns into the bag body 301. Start the peristaltic pump 303, adjust the flow rate of the peristaltic pump 303 to an appropriate value, and then the gastric lavage solution flows from the bag body 301 through the first liquid outlet pipe 302, the peristaltic pump 303, the first tube body 305, and the fifth one-way valve 306 into the three-way valve 307. Open the second valve 21, and the gastric lavage solution enters the gastric tube 1 through the four-way valve 22, and then flows into the gastrointestinal tract of the newborn to clean the gastrointestinal tract. After the cleaning is completed, the peristaltic pump 303 is turned off and the negative pressure pump 308 is turned on. At this time, the waste liquid in the gastrointestinal tract flows into the waste liquid tank 309 through the gastric tube 1, the four-way 22, the second valve 21, the three-way 307, the fourth one-way valve 311, and the second tube body 310 under the negative pressure generated by the negative pressure pump 308. During the entire gastric lavage process, the pressure monitoring component 4 continues to work and monitors the pressure changes in the gastrointestinal tract in real time. If the pressure fluctuates abnormally, the medical staff can adjust the gastric lavage operation in time to ensure that the gastric lavage process is safe and smooth. After the gastric lavage is completed, the negative pressure pump 308 and the second valve 21 are turned off, and the various components of the gastric lavage component 3 are cleaned and disinfected for next use.

[0031] In this embodiment, the exhaust feeding assembly 5 is mainly composed of a first syringe 501, a cover 502, a first top cover 503, a second syringe 504, a second top cover 505, a first connecting rod 506, a second connecting rod 510, a third one-way valve 507, a first piston 508 and a second piston 509. The first syringe 501 is connected to the second syringe 504. The first piston 508 and the inner wall of the first syringe 501, and the second piston 509 and the inner wall of the second syringe 504 are both slidably connected to ensure the sealing and smoothness of the piston during the reciprocating motion.

[0032] The first syringe 501 is connected to the third one-way valve 507 to prevent gas leakage. The third one-way valve 507 is further connected to the sixth tube body 20, and the cover body 502 is detachably connected to the side of the first syringe 501 close to the sixth tube body 20. The first piston 508 is connected to the first top cover 503 through the second connecting rod 510. The second piston 509 is connected to the first connecting rod 506, and the first connecting rod 506 and the second top cover 505 are connected in a sliding manner, which allows the second piston 509 to move flexibly in the second syringe 504.

[0033] In addition, the present embodiment further includes a third tube body 17 and a third valve 18. The third tube body 17 and the second syringe 504 are detachably connected, and can be connected by directly sleeved with the third tube body 17. A sixth one-way valve 23 is installed at a position of the third tube body 17 close to the second syringe 504. After a feeding and synchronous exhaust are completed, the second syringe 504 can be removed from the third tube body 17, and the second top cover 505 can be reset without affecting the next feeding. The third tube body 17 is connected to the third valve 18, and the third valve 18 is connected to the four-way 22.

[0034] In actual use, when feeding a newborn, the second valve 21 needs to be closed, and the medical staff removes the cover 502, injects the soaked milk powder into the first syringe 501 by means of a syringe, and the first piston 508, the second connecting rod 510 and the first top cover 503 in the first syringe 501 move upward. After completion, the cover 502 is re-fixed on the first syringe 501, and the first top cover 503 is pushed during the feeding process, and the milk powder in the first syringe 501 is discharged from the third one-way valve 507, and enters the stomach tube 1 through the sixth tube 20, the first valve 19, and the four-way 22 to feed the newborn. The device integrates the gastric lavage function and the feeding function in one device, which is convenient for medical staff to operate.

[0035] In this embodiment, an annular cylinder 10, an annular plate 11, a first one-way valve 15, a second one-way valve 12, a fourth tube 13 and an air bag 14 are also included. The annular cylinder 10 is connected to the first syringe 501. The inner wall of the annular cylinder 10 is slidably connected to the annular plate 11. The annular cylinder 10 and the annular plate 11 are slidably connected to ensure the sealing and flexibility of the annular plate 11 when moving in the annular cylinder 10. The bottom of the annular cylinder 10 is connected to the first one-way valve 15, and the first one-way valve 15 allows gas to enter the annular cylinder 10 only from the outside. The bottom of the annular cylinder 10 is connected to the fourth tube 13 through the second one-way valve 12, and the second one-way valve 12 restricts air from flowing from the bottom of the annular cylinder 10 to the fourth tube 13. The fourth tube 13 is connected to the air bag 14, and the air bag 14 is connected to the top of the second syringe 504. When the annular plate 11 compresses the air inside the annular cylinder 10, the air enters the air bag 14 from the second one-way valve 12. The airbag 14 is a bellows-type linear airbag, and the airbag 14 can only extend upward and deform after being inflated.

[0036] In actual use, the first top cover 503 will drive the annular plate 11 to move downward during the downward movement, and the annular plate 11 will inject the air inside the annular cylinder 10 into the airbag 14. The airbag 14 will contact the second top cover 505 during the vertical expansion process, and gradually drive the second top cover 505 to move upward. The second top cover 505 will indirectly drive the second piston 509 to move upward during the upward movement. The second piston 509 will draw the gas inside the newborn from the gastric tube 1 during the upward movement, so as to achieve synchronous exhaust of the newborn during the feeding process. During the feeding process, the newborn is prone to stomach bloating or discomfort, which is mainly due to swallowing air or the digestive system is not fully developed. Through the synchronous exhaust function, the excess gas in the stomach can be discharged in time, effectively relieving the stomach pressure, reducing the discomfort of the newborn, and improving the comfort of the feeding process. At the same time, the accumulation of gas in the stomach may cause vomiting or reflux in the newborn after feeding, which not only affects the absorption of nutrients, but also may cause risks such as choking or aspiration. The synchronous exhaust function can reduce gas accumulation in the stomach, reduce the incidence of vomiting and regurgitation, and ensure the safety of feeding. In the traditional feeding process, medical staff may need to perform additional exhaust operations, which not only increases the workload but also may affect the continuity of feeding. With the synchronous exhaust function, feeding and exhaust can be performed at the same time, which improves feeding efficiency and reduces the burden on medical staff.

[0037] In this embodiment, an adjustment mechanism 8 is also included. The adjustment mechanism 8 includes a positioning rod 801, a plurality of notches 802 and a rotating plate 803. The positioning rod 801 is connected to the first connecting rod 506 to ensure that the positioning rod 801 can move with the movement of the first connecting rod 506. The positioning rod 801 is slidably connected to the second top cover 505. A plurality of notches 802 are processed on the positioning rod 801, and these notches 802 are spaced apart along the length direction of the positioning rod 801, providing different clamping positions for the rotating plate 803. The rotating plate 803 is rotatably connected to the second top cover 505, and the rotating plate 803 can rotate within a certain angle range and can be clamped or disengaged from the notches 802.

[0038] In actual use, when it is necessary to adjust the exhaust amplitude during the feeding process, the user can rotate the rotating plate 803. When the rotating plate 803 is separated from the notch 802, the medical staff can pull the second top cover 505 up and down to adjust the position. When the designated position is reached, the rotating plate 803 is rotated so that the rotating plate 803 is snapped into the corresponding notch 802 for positioning. The medical staff can reasonably adjust the position of the second top cover 505 according to the pressure of different newborns during feeding and non-feeding. After adjusting the position of the second top cover 505, the airbag 14 drives the second top cover 505 to move at different strokes after expanding in the vertical direction, thereby realizing the adjustment of the exhaust volume during the feeding process. The medical staff can make adjustments as needed, so as to adjust according to different newborns and the physical health conditions of newborns at different stages, thereby improving the scope of application of the device.

[0039] In this embodiment, a pressure relief assembly 9 is provided on the second piston 509. The pressure relief assembly 9 includes a top plate 901, a rod body 902, a stopper 903 and a spring 904. The top plate 901 is connected to the second piston 509 to ensure that the top plate 901 and the second piston 509 can move in coordination. The top plate 901 is slidably connected to the rod body 902 so that the rod body 902 can move up and down in the top plate 901. The rod body 902 is connected to the stopper 903, and the stopper 903 is slidably connected to the second piston 509 to provide a guide for the movement of the stopper 903. The spring 904 is sleeved on the rod body 902, and the two ends of the spring 904 are respectively connected to the bottom of the top plate 901 and the top of the stopper 903, and the elastic characteristics of the spring 904 are used to realize the pressure relief function.

[0040] In actual use, when the device is worn on a newborn on a daily basis, if the pressure in the newborn's stomach exceeds the threshold, the block 903 overcomes the elastic force of the spring 904 and moves upward. When the block 903 is separated from the second piston 509, the pressure relief of the newborn's stomach is achieved. The elastic force of the spring 904 is not limited and can be selected according to needs. The elastic force of the spring 904 represents the threshold of passive pressure relief of the newborn's stomach and intestines. By closing the second piston 509 with the block 903 on a daily basis, external bacteria can be prevented from entering the newborn's stomach. At the same time, the device uses active exhaust during feeding and passive exhaust when the threshold is exceeded, which can control the pressure fluctuation within the physiological safety range of the newborn and reduce the risk of choking related to bloating.

[0041] In this embodiment, the cleaning mechanism 2 includes two guide plates 201, two pressure rollers 202, two limit plates 204, a limit frame 203, two connecting shafts 205, two first guide grooves 206 and two second guide grooves 207. The two guide plates 201 are connected to the first syringe 501. The two first guide grooves 206 and the two second guide grooves 207 are respectively processed on the two guide plates 201. The two first guide grooves 206 and the second guide grooves 207 are respectively slidably connected to the two connecting shafts 205, so that the connecting shafts 205 can move within the path defined by the first guide grooves 206 and the second guide grooves 207. Both connecting shafts 205 are slidably connected to the limit frame 203. The limit frame 203 is connected to the annular plate 11. The two connecting shafts 205 are connected to the two limiting plates 204 respectively, and the two limiting plates 204 are fitted with the front of the limiting frame 203. The cooperation between the limiting plates 204 and the limiting frame 203 further limits the range of motion of the connecting shaft 205. The two connecting shafts 205 are connected to the two pressing rollers 202 respectively, so that the pressing rollers 202 can move with the movement of the connecting shafts 205. The two pressing rollers 202 are pressed tightly against the fifth tube body 16, the fifth tube body 16 is connected to the second liquid outlet pipe 304, and the fifth tube body 16 is connected to the first syringe 501, so as to construct a liquid circulation channel from the second liquid outlet pipe 304 to the first syringe 501 through the fifth tube body 16. Among them, the position where the fifth tube body 16 is connected to the first syringe 501 can adopt multiple connection ports, so that when the fifth tube body 16 discharges physiological saline, the multiple connection ports can ensure that the inside of the first syringe 501 is cleaned evenly.

[0042] In actual use, during feeding, the highest point of the upward movement of the limit frame 203 will not reach the lowest point of the first guide groove 206, that is, at this time, the two pressing rollers 202 always press the fifth tube 16, and the physiological saline in the fifth tube 16 will not flow into the first syringe 501 for cleaning. When the feeding is completed, only the first valve 19 and the second valve 21 are opened, and the first top cover 503 is lifted upward again, so that the limit frame 203 drives the pressing roller 202 and the limit plate 204 to move upward. And the connecting shaft 205 moves upward. When the connecting shaft 205 moves into the first guide groove 206, the fifth tube 16 is no longer compressed. The physiological saline flows along the first syringe 501, the sixth tube 20, the first valve 19, the four-way valve 22, the second valve 21, the three-way valve 307, the fourth one-way valve 311, and the negative pressure pump 308 into the waste liquid tank 309 for collection. The device realizes the cleaning of the feeding position. The whole process is convenient for medical staff to operate, and there is no need to disassemble the components in the device for cleaning.

[0043] In this embodiment, the connection mechanism 7 includes an extension member 701 and a clamping plate 702. The extension member 701 is connected to the first top cover 503, and the clamping plate 702 is rotatably connected to the extension member 701. The clamping plate 702 is clamped on the second top cover 505, and the upper and lower sides of the inner part of the clamping plate 702 are respectively in contact with the upper and lower sides of the second top cover 505.

[0044] In actual use, after finishing feeding, the medical staff can reset the second top cover 505. At this time, the splint 702 can be fixed on the second top cover 505 by rotating. At this time, it will not affect the pressure relief of the pressure relief component 9, and the second top cover 505 can be prevented from moving randomly. The device abandons the structure of multiple electronic devices to achieve exhaust during feeding, saving the production cost of the device and reducing the failure rate.

[0045] In addition, another embodiment of the present invention further provides a method for operating a neonatal gastrointestinal decompression and exhaust device, comprising: The gastrointestinal pressure values ​​of the neonates in the non-feeding stage at each time period are obtained, and a first neonatal gastrointestinal pressure value curve is constructed based on the collected pressure values.

[0046] The gastrointestinal pressure values ​​of the neonate during the feeding stage in each period are obtained, and a second neonatal gastrointestinal pressure value curve is constructed based on the collected pressure values.

[0047] According to the first neonatal gastrointestinal pressure value curve and the second neonatal gastrointestinal pressure value curve, the gas reduction amount of the stomach and intestine is adjusted during the feeding process.

[0048] After the feeding is completed, the control exhaust feeding assembly 5 performs a self-cleaning action. During the feeding operation, the highest point of the upward movement of the limit frame 203 will not reach the lowest point of the first guide groove 206. That is to say, at this time, the two pressure rollers 202 always press the fifth tube body 16 tightly, and the physiological saline in the fifth tube body 16 will not flow into the first syringe 501 for cleaning. When the feeding operation is completed, only the first valve 19 and the second valve 21 are opened, and the first top cover 503 is lifted upward again, so that the limit frame 203 drives the pressure roller 202, the limit plate 204 and the connecting shaft 205 to move upward. When the connecting shaft 205 moves into the first guide groove 206, the fifth tube body 16 is no longer pressed tightly at this time, and the physiological saline enters the waste liquid tank 309 along the first syringe 501, the sixth tube body 20, the first valve 19, the four-way joint 22, the second valve 21, the three-way joint 307, the fourth one-way valve 311, and the negative pressure pump 308 for collection. This device realizes the cleaning of the feeding position, and the whole process is convenient for medical staff to operate, and there is no need to disassemble the components in the device for cleaning.

[0049] In this embodiment, for the gastrointestinal treatment operation of newborns. First, the key step is to insert the gastric tube. Medical staff need to strictly follow the established medical operation procedures. Select a suitable type of gastric tube 1 and slowly insert it through the nasal cavity of the newborn until the gastric tube 1 reaches the gastrointestinal tract of the newborn smoothly.

[0050] It also includes a pressure monitoring link, and the pressure sensor 403 in the pressure monitoring assembly 4 is started. The pressure sensor 403 is a MEMS pressure sensor, which senses the pressure change through the deformation of the micro-mechanical diaphragm and converts the deformation into an electrical signal output. The gastrointestinal tract of newborns is narrow, and traditional large sensors are difficult to apply. The MEMS sensor can accurately measure the pressure change in the gastrointestinal tract without affecting the normal physiological activities of newborns through its micron-level design.

[0051] It also includes a gastric lavage operation, and the first step of the gastric lavage operation is to start the peristaltic pump 303. Medical staff adjust the flow rate of the peristaltic pump 303 to a suitable value according to the specific condition and physical condition of the newborn. The peristaltic pump 303 adopts advanced peristaltic control technology, which can adjust the flow rate and ensure that the gastric lavage solution flows into the three-way 307 at an appropriate speed. Then open the second valve 21, and the gastric lavage solution smoothly enters the gastric tube 1 through the four-way 22 under the action of the pressure difference, and then flows into the gastrointestinal tract of the newborn, and the gastric lavage operation begins. During the gastric lavage process, it is necessary to closely observe the inflow of the gastric lavage solution and the reaction of the newborn to ensure the effectiveness and safety of the gastric lavage operation. When the gastric lavage is completed, turn off the peristaltic pump 303 to stop the continued input of the gastric lavage solution. Then start the negative pressure pump 308, which generates a strong negative pressure suction to extract the waste liquid in the gastrointestinal tract of the newborn, and the waste liquid flows into the waste liquid tank 309 along a specific pipeline. After the waste liquid is extracted, the negative pressure pump 308 and the second valve 21 are closed to ensure that the entire system is in a sealed state, to prevent external pollutants from entering the system, and to prevent the waste liquid remaining in the system from polluting the environment.

[0052] Finally, the feeding operation is performed. Before feeding, the second valve 21 is closed first, and the cover 502 is carefully removed. The milk powder that has been soaked in advance and is at a suitable temperature is injected into the first syringe 501. During the injection process, the first piston 508, the second connecting rod 510 and the first top cover 503 in the first syringe 501 will move upward due to the injection of milk powder. After the milk powder injection is completed, the cover 502 is refixed on the first syringe 501. During feeding, the medical staff pushes the first top cover 503. At this time, the milk powder in the first syringe 501 is discharged from the third one-way valve 507 under pressure, and enters the stomach tube 1 through the sixth tube body 20, the first valve 19, and the four-way 22 in sequence, thereby achieving feeding of the newborn. It is worth noting that during the downward movement of the first top cover 503, the annular plate 11 will be driven to move downward synchronously. The downward movement of the annular plate 11 causes the air inside the annular cylinder 10 to be compressed and injected into the air bag 14. After air is injected into the airbag 14, it will gradually expand in the vertical direction. When the airbag 14 expands to a certain extent, it will contact the second top cover 505, and drive the second top cover 505 to move upward by virtue of the thrust generated by the expansion. The upward movement of the second top cover 505 will indirectly drive the second piston 509 to move upward. In this process, the second piston 509 will generate negative pressure when moving upward, and the gas inside the gastrointestinal tract of the newborn will be extracted from the gastric tube 1 into the second syringe 504. This design cleverly realizes the simultaneous feeding and exhaust, effectively avoids the discomfort that may be caused by the accumulation of gas in the gastrointestinal tract of the newborn, and improves the safety and comfort of the feeding operation.

[0053] The position algorithm of the second top cover 505 is: Pressure feature extraction: Adjustment height calculation formula: Security constraints: Gap positioning method: The distance between adjacent notches 802 is d=2 mm.

[0054] Parameter comparison table: It should be added that the default adjustment coefficient is applicable to newborns weighing 2.5-4.0 kg, and premature infants need to Down by 20%.

[0055] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gastrointestinal decompression and exhaust device for neonates, characterized in that: The invention comprises a gastric tube (1), a four-way tube (22), a first valve (19), an exhaust feeding assembly (5), a sixth tube body (20) and a pressure monitoring assembly (4), wherein the gastric tube (1) is connected to the four-way tube (22), the four-way tube (22) is connected to the first valve (19), the first valve (19) is connected to the sixth tube body (20), the sixth tube body (20) is connected to the exhaust feeding assembly (5), the pressure monitoring assembly (4) is arranged inside the gastric tube (1), the pressure monitoring assembly (4) is used to monitor the pressure in the gastrointestinal tract of the neonate, and the exhaust feeding assembly (5) is used to reduce the gastrointestinal tract pressure of the neonate.

2. The neonatal gastrointestinal decompression and exhaust device according to claim 1, characterized in that: The pressure monitoring assembly (4) comprises an inspection cover (402), a pressure sensor (403), a sleeve (401) and a hydrophobic membrane (404); The inspection cover (402) is connected to the side wall of the gastric tube (1), the inner wall of the inspection cover (402) is connected to the sleeve (401), the hydrophobic membrane (404) is connected to an end of the sleeve (401) away from the inspection cover (402), and the pressure sensor (403) is arranged in the sleeve (401) and the pressure sensor (403) is arranged on a side close to the hydrophobic membrane (404).

3. The neonatal gastrointestinal decompression and exhaust device according to claim 1, characterized in that: It also includes a gastric lavage assembly (3) and a second valve (21), wherein the gastric lavage assembly (3) includes a bag body (301), a first liquid outlet pipe (302), a second liquid outlet pipe (304), a peristaltic pump (303), a first tube body (305), a fifth one-way valve (306), a three-way valve (307), a second tube body (310), a fourth one-way valve (311), a negative pressure pump (308) and a waste liquid tank (309); The first liquid outlet pipe (302) and the second liquid outlet pipe (304) are connected to the bag body (301); the first liquid outlet pipe (302) is connected to the input end of the peristaltic pump (303); the output end of the peristaltic pump (303) is connected to the fifth one-way valve (306) through the first tube body (305); the fifth one-way valve (306) is connected to the three-way valve (307); the three-way valve (307) is connected to the four-way valve (22) through the second valve (21); the three-way valve (307) is connected to the second tube body (310) through the fourth one-way valve (311); the second tube body (310) is connected to the input end of the negative pressure pump (308); and the output end of the negative pressure pump (308) is connected to the waste liquid tank (309).

4. The neonatal gastrointestinal decompression and exhaust device according to claim 3, characterized in that: The exhaust feeding assembly (5) comprises a first syringe (501), a cover body (502), a first top cover (503), a second syringe (504), a second top cover (505), a first connecting rod (506), a second connecting rod (510), a third one-way valve (507), a first piston (508) and a second piston (509); The first syringe (501) is connected to the second syringe (504), the first piston (508) and the second piston (509) are slidably connected to the inner wall of the first syringe (501) and the inner wall of the second syringe (504) respectively, the first syringe (501) is connected to the third one-way valve (507), the third one-way valve (507) is connected to the sixth tube (20), the cover (502) is connected to the side of the first syringe (501) close to the sixth tube (20), the first piston (508) is connected to the first top cover (503) through the second connecting rod (510), the second piston (509) is connected to the first connecting rod (506), and the first connecting rod (506) is slidably connected to the second top cover (505); The invention also comprises a third tube body (17) and a third valve (18), wherein the third tube body (17) is detachably connected to the second syringe (504), the third tube body (17) is connected to a sixth one-way valve (23), the third tube body (17) is connected to the third valve (18), and the third valve (18) is connected to the four-way valve (22).

5. The neonatal gastrointestinal decompression and exhaust device according to claim 4, characterized in that: It also includes an annular cylinder (10), an annular plate (11), a first one-way valve (15), a second one-way valve (12), a fourth tube body (13) and an air bag (14); The annular cylinder (10) is connected to the first syringe (501), the inner wall of the annular cylinder (10) is slidably connected to the annular plate (11), the bottom of the annular cylinder (10) is connected to a first one-way valve (15), the bottom of the annular cylinder (10) is connected to the fourth tube body (13) via a second one-way valve (12), the fourth tube body (13) is connected to the airbag (14), and the airbag (14) is connected to the top of the second syringe (504).

6. The neonatal gastrointestinal decompression and exhaust device according to claim 5, characterized in that: Also includes an adjustment mechanism (8); The adjustment mechanism (8) comprises a positioning rod (801), a plurality of notches (802) and a rotating plate (803); The positioning rod (801) is connected to the first connecting rod (506), the positioning rod (801) is slidably connected to the second top cover (505), a plurality of notches (802) are machined on the positioning rod (801), the rotating plate (803) is rotatably connected to the second top cover (505), and the rotating plate (803) can be snapped into the notches (802).

7. The neonatal gastrointestinal decompression and exhaust device according to claim 4, characterized in that: The second piston (509) is provided with a pressure relief assembly (9); The pressure relief assembly (9) comprises a top plate (901), a rod body (902), a stopper (903) and a spring (904); The top plate (901) is connected to the second piston (509), the top plate (901) is slidably connected to the rod body (902), the rod body (902) is connected to the stopper (903), the stopper (903) is slidably connected to the second piston (509), the spring (904) is sleeved on the rod body (902), and two ends of the spring (904) are respectively connected to the bottom of the top plate (901) and the top of the stopper (903).

8. The neonatal gastrointestinal decompression and exhaust device according to claim 6, characterized in that: It also includes bridging institutions (7); The connection mechanism (7) comprises an extension piece (701) and a clamping plate (702); The extension piece (701) is connected to the first top cover (503), the clamping plate (702) is rotatably connected to the extension piece (701), and the clamping plate (702) is clamped on the second top cover (505).

9. A method for operating a neonatal gastrointestinal decompression and exhaust device, characterized in that: The method is applied to the neonatal gastrointestinal decompression and exhaust device according to any one of claims 1 to 8, comprising the following steps: Obtaining the gastrointestinal pressure value of the neonate in the non-feeding stage at each time period, and constructing a first neonate gastrointestinal pressure value curve based on the collected pressure values; Obtaining the gastrointestinal pressure value of the neonate during the feeding stage at each time period, and constructing a second neonate gastrointestinal pressure value curve based on the collected pressure values; According to the first neonatal gastrointestinal pressure value curve and the second neonatal gastrointestinal pressure value curve, the gas reduction amount of the stomach and intestine is adjusted during the feeding process.

10. The method for operating the neonatal gastrointestinal decompression and exhaust device according to claim 9, characterized in that: Also includes: Insert the gastric tube. According to the medical operation procedures, insert the gastric tube (1) into the gastrointestinal tract of the newborn through the nasal cavity, ensuring that the insertion depth is appropriate; Performing pressure monitoring, activating the pressure sensor (403) in the pressure monitoring component (4), monitoring the pressure condition in the gastrointestinal tract of the newborn in real time, and the medical staff viewing the pressure data through an external display and analysis device; Perform gastric lavage: start the peristaltic pump: adjust the flow rate of the peristaltic pump (303) to an appropriate value so that the gastric lavage solution flows into the three-way valve (307), open the second valve: control the gastric lavage solution to enter the gastric tube (1) through the four-way valve (22), and then flow into the gastrointestinal tract of the newborn, perform gastric lavage, turn off the peristaltic pump: when the gastric lavage is completed, turn off the peristaltic pump (303) and stop the input of the gastric lavage solution, start the negative pressure pump: turn on the negative pressure pump (308) to extract the waste liquid in the gastrointestinal tract of the newborn and flow it into the waste liquid tank (309), turn off the negative pressure pump and the second valve: after the waste liquid extraction is completed, turn off the negative pressure pump (308) and the second valve (21) to ensure that the system is sealed; Perform feeding operation: close the second valve (21), remove the cover body (502), inject the soaked milk powder into the first syringe (501), and move the first piston (508), the second connecting rod (510) and the first top cover (503) in the first syringe (501) upward. After completion, fix the cover body (502) on the first syringe (501) again. During feeding, push the first top cover (503), and the milk powder in the first syringe (501) is discharged from the third one-way valve (507), and enters the stomach tube (1) through the sixth tube body (20), the first valve (19) and the four-way (22). During feeding of a newborn, the first top cover (503) drives the annular plate (11) to move downward during the downward movement, and the annular plate (11) injects air inside the annular cylinder (10) into the air bag (14). During the vertical expansion of the air bag (14), the air bag (14) contacts the second top cover (505) and drives the second top cover (505) to move upward. The second top cover (505) indirectly drives the second piston (509) to move upward. During the upward movement of the second piston (509), the gas inside the gastrointestinal tract of the newborn is extracted from the gastric tube (1) into the second syringe (504).

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