Pressure measuring and detecting device for stomach tube indwelling

Abstract

The invention discloses a pressure measuring and detecting device for stomach tube indwelling, and belongs to the field of stomach tube indwelling, the pressure measuring and detecting device comprises a stomach tube, a detecting device, a central control device, a detecting tube and a remote controller, the detecting device comprises a pressure gauge, the pressure gauge is used for directly reflecting the pressure in the stomach tube; and the detection tube is used for connecting the stomach tube and the pressure gauge and transmitting the pressure in the stomach tube to the pressure gauge. By detecting the pressure in the stomach tube, utilizing the positive pressure characteristic in the lung and the characteristic that the pressure in the lung changes positively and negatively, if it is monitored that the negative pressure possibly proves that the stomach tube enters the airway by mistake, the placement position of the stomach tube is accurately judged, then the mistakes during stomach tube placement can be reduced, and meanwhile, by means of the characteristic that the content in the airway is usually high, the accuracy of stomach tube placement is improved. And whether the stomach tube enters the airway mistakenly or not is judged, the problem of stomach tube position judgment is solved clinically, and adverse events and harm to a patient are reduced.

Description

Technical Field

[0001] The invention relates to the field of gastric tube placement, in particular to a pressure measuring and detecting device for gastric tube placement. Background Art

[0002] Gastric tube placement is a routine nursing method for enteral nutrition support. Nurses can complete gastric tube placement after training. After completing the gastric tube placement, the nurses conduct routine assessments (listening to the sound of air passing through water, taking bedside chest radiographs, and aspirating gastric fluid) to determine whether the gastric tube has been successfully placed in the stomach. X-rays are considered the gold standard for positioning gastric tube placement, but they have the disadvantages of high cost, inconvenient operation, increased risk of critically ill patients leaving the room for examination, and most hospitals' intensive care units and emergency departments do not have supporting equipment for bedside X-ray filming, as well as accumulated radiation. Therefore, they have not become a widely used positioning method in the clinical frontline, but their use is gradually increasing in difficult positioning. Due to patient factors or nursing staff experience, clinical studies have shown that the position error of gastric tubes in high-risk patients is as high as 13%-20%. Correct judgment of gastric tube position is of great importance. Attention should be paid to the situation of gastric tubes mistakenly entering the airway in patients without typical symptoms. This is more easily ignored in clinical practice, and the consequences are serious. Literature reports that gastric tubes mistakenly entering the trachea can cause dyspnea and cyanosis, decreased blood oxygen saturation, etc.

[0003] Therefore, in order to facilitate the determination of the insertion position of a gastric tube, improve the accuracy of the insertion position of the gastric tube, and reduce the nursing cost and difficulty, a pressure measuring detection device for gastric tube insertion is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a pressure measuring and detecting device for gastric tube placement, so as to solve the problem mentioned in the above background technology that the traditional gastric tube placement position judgment is inconvenient, resulting in a high error rate during gastric tube placement, and high expenses and nursing costs.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a pressure measuring and detecting device for gastric tube placement, comprising a gastric tube, a detecting device, a central control device, a detecting tube and a remote controller;

[0006] The detection device comprises:

[0007] A pressure gauge, which is used to directly reflect the pressure in the gastric tube;

[0008] A detection tube, which is used to connect the gastric tube and the pressure gauge and transmit the pressure in the gastric tube to the pressure gauge;

[0009] An annular cylindrical airbag, which can fit the inner wall of the stomach tube after being inflated;

[0010] The central control device is used to process the air pressure signal and carbon dioxide content in the gastric tube, and the central control device is connected to the remote controller by wireless communication;

[0011] As a further preferred embodiment of the present technical solution: said 13 includes:

[0012] The central control device comprises:

[0013] A power supply, which is fixedly mounted in the housing of the central control device and is configured to supply power to electrical components in the central control device;

[0014] A central control processor, wherein the central control processor reads the air pressure value of the pressure gauge;

[0015] A carbon dioxide content detection element, which detects the carbon dioxide content in the gastric tube;

[0016] The carbon dioxide content detection element is connected to the central control processor, and the carbon dioxide content detection element transmits the read carbon dioxide data to the central control processor;

[0017] A Wifi Bluetooth transmission module, which transmits data from the central control processor to the remote control;

[0018] As a further preferred embodiment of the technical solution: the central control device further comprises an air pump motor, the input end of the air pump motor is connected to an air inlet pipe, and the output end of the air pump motor is connected to an air outlet pipe;

[0019] As a further preferred embodiment of the technical solution: an airbag inflation tube is provided on the annular cylindrical airbag, and the airbag inflation tube is connected to the air outlet pipe;

[0020] As a further preferred embodiment of the present technical solution: the two ends of the detection tube act on the inside of the stomach tube and the pressure gauge respectively;

[0021] As a further preferred embodiment of the technical solution: the middle part of the annular columnar airbag is a hollow structure, and one end of the detection tube passes through the hollow structure through the annular columnar airbag and extends into the stomach tube;

[0022] As a further preferred embodiment of the present technical solution: the remote controller is provided with a display screen for displaying the received data

[0023] As a further preferred embodiment of the present technical solution: the remote controller receives data transmitted by the central control device through wireless communication, and displays the pressure and carbon dioxide content information in the gastric tube on the display screen;

[0024] As a further preferred embodiment of the present technical solution: the air pump motor is used to control the inflation and deflation of the annular cylindrical airbag, the annular cylindrical airbag should be elastic, and the annular cylindrical airbag should be sealed and fit with the inner wall of the gastric tube when inflated.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention detects the pressure in the gastric tube and utilizes the positive pressure characteristics in the lungs and the characteristics of positive and negative changes in the pressure in the lungs. If negative pressure is detected, it may prove that the gastric tube has been mistakenly inserted into the airway, and the insertion position of the gastric tube can be accurately determined, thereby reducing errors in gastric tube insertion. At the same time, the characteristic that the airway content is usually high is utilized to assist in determining whether the gastric tube has been mistakenly inserted into the airway, thereby solving the problem of gastric tube position determination in clinical practice and reducing adverse events and harm to patients.

[0027] 2. After the annular cylindrical airbag is inflated, it fits tightly with the inner wall of the gastric tube to form a relatively closed space, stabilize the internal pressure, prevent gas leakage, reduce external interference, and improve detection accuracy. One end of the detection tube is inserted into the gastric tube to obtain accurate pressure information, and the other end is connected to the pressure gauge to transmit information to ensure accurate pressure detection;

[0028] 3. In addition, the central control device can process air pressure and carbon dioxide content signals, convert analog signals into digital signals, and transmit data to the remote control in real time through wireless communication connection, so that medical staff can realize remote monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of a stomach tube connection portion of a pressure measuring and detecting device for stomach tube placement according to the present invention;

[0030] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0031] Figure 3 Schematic diagram of the internal structure of the central control device Figure 1 ;

[0032] Figure 4 Schematic diagram of the internal structure of the central control device Figure 2 ;

[0033] Figure 5 A schematic diagram of the structure of the remote control.

[0034] In the figure: 1. Gastric tube; 2. Pressure gauge; 3. Detection tube; 4. Ring-shaped cylindrical airbag; 5. Airbag inflation tube; 6. Power supply; 7. Central control processor; 8. Carbon dioxide content detection element; 9. Wifi Bluetooth transmission module; 10. Air pump motor; 11. Inlet pipe; 12. Outlet pipe; 13. Central control device; 14. Remote control. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0036] Example

[0037] See also Figure 1-Figure 4 As shown, the present invention provides a technical solution: a pressure measurement and detection device for gastric tube placement, comprising a gastric tube 1, a detection device, a central control device 13, a detection tube 3 and a remote controller 14;

[0038] The detection device comprises:

[0039] A pressure gauge 2, which is used to directly reflect the pressure in the stomach tube 1;

[0040] A detection tube 3, which is used to connect the stomach tube 1 and the pressure gauge 2, and transmit the pressure in the stomach tube 1 to the pressure gauge 2;

[0041] An annular cylindrical airbag 4, which can fit the inner wall of the stomach tube 1 after being inflated;

[0042] The material of the annular columnar airbag 4 has good elasticity and sealing properties. When inflated, the airbag can expand evenly and fit tightly against the inner wall of the gastric tube 1 to form a relatively closed space, which is conducive to stabilizing the internal pressure, preventing gas leakage, and ensuring the accuracy of the detection; at the same time, this fitting method can also reduce the interference of external factors on the detection results, prevent the liquid or gas around the gastric tube from entering the detection area, and improve the reliability of the detection.

[0043] The central control device 13 is used to process the air pressure signal and carbon dioxide content in the gastric tube 1, and the central control device 13 is wirelessly connected to the remote controller 14;

[0044] The central control device 13, as the core processing unit of the entire system, can process the air pressure signal and the carbon dioxide content signal from the detection device, convert the analog signal into a digital signal, and transmit the processed data to the remote control 14 in real time through a wireless communication connection to realize remote monitoring.

[0045] In this embodiment, specifically: the 13 includes:

[0046] The central control device 13 comprises:

[0047] A power supply 6, which is fixedly mounted in the housing of the central control device 13 and configured to supply power to electrical components in the central control device 13;

[0048] A central control processor 7, wherein the central control processor 7 reads the air pressure value of the pressure gauge 2;

[0049] A carbon dioxide content detection element 8, wherein the carbon dioxide content detection element 8 detects the carbon dioxide content in the gastric tube 1;

[0050] The carbon dioxide content detection element 8 is connected to the central control processor 7, and the carbon dioxide content detection element 8 transmits the read carbon dioxide data to the central control processor 7;

[0051] The Wifi Bluetooth transmission module 9 transmits the data of the central control processor 7 to the remote controller 14 .

[0052] In this embodiment, specifically: the central control device 13 further includes an air pump motor 10, the input end of the air pump motor 10 is connected to an air inlet pipe 11, and the output end of the air pump motor 10 is connected to an air outlet pipe 12;

[0053] The air pump motor 10 inhales air through the air inlet pipe 11, and then delivers the gas to the annular cylindrical air bag 4 through the air outlet pipe 12 after compression, thereby realizing the inflation function of the air bag and ensuring that the air bag can fit tightly against the inner wall of the gastric tube 1.

[0054] In this embodiment, specifically: an airbag inflation tube 5 is provided on the annular columnar airbag 4 , and the airbag inflation tube 5 is connected to the air outlet tube 12 .

[0055] In this embodiment, specifically: the two ends of the detection tube 3 act on the inside of the stomach tube 1 and the pressure gauge 2 respectively;

[0056] One end of the detection tube 3 is inserted into the stomach tube 1 so as to directly contact the gas in the stomach tube 1 to obtain accurate pressure information, and the other end is connected to the pressure gauge 2 to transmit the pressure information to the pressure gauge 2.

[0057] In this embodiment, specifically: the middle part of the annular columnar airbag 4 is a hollow structure, and one end of the detection tube 3 passes through the annular columnar airbag 4 through the hollow structure and extends into the stomach tube 1;

[0058] The design of this hollow structure not only facilitates the installation and arrangement of the detection tube 3, but also does not affect the inflation and sealing performance of the airbag; the detection tube 3 passes through the airbag through the hollow structure, and can directly obtain the pressure information in the gastric tube 1. At the same time, the airbag can still fit tightly against the inner wall of the gastric tube 1 after inflation, thereby ensuring the sealing and stability of the detection area and improving the accuracy of the detection.

[0059] In this embodiment, specifically: the remote controller 14 is provided with a display screen for displaying received data.

[0060] In this embodiment, specifically: the remote controller 14 receives data transmitted by the central control device 13 via wireless communication, and displays the pressure and carbon dioxide content information in the gastric tube 1 on a display screen.

[0061] In this embodiment, specifically: the air pump motor 10 is used to control the inflation and deflation of the annular cylindrical airbag 4. The annular cylindrical airbag 4 should be elastic and seal fit with the inner wall of the gastric tube 1 when inflated.

[0062] Working principle or structural principle: when the gastric tube 1 is inserted into the patient's body, the detection device starts to work, the annular cylindrical airbag 4 is inflated under the action of the air pump motor 10, and fits tightly against the inner wall of the gastric tube 1 to form a relatively closed detection space, and the gas pressure in the gastric tube 1 is transmitted to the pressure gauge 2 through the detection tube 3, and the pressure gauge 2 converts the pressure value into an electrical signal and transmits it to the central control device 13, and the central control processor 7 reads the pressure value and determines whether the pressure in the gastric tube 1 is within the normal range (generally, the intragastric pressure is positive pressure, and the intrapulmonary pressure will form positive and negative pressure changes through the patient's exhalation and inhalation), thereby determining whether the gastric tube is in the correct position. If negative pressure is monitored, it may prove that the gastric tube has mistakenly entered the airway;

[0063] At the same time, the carbon dioxide content detection element 8 detects the carbon dioxide content in the gastric tube 1. Based on its working principle, after the carbon dioxide content data is detected, the data is transmitted to the central control processor 7. Medical staff can assist in judging whether the gastric tube has been mistakenly inserted into the airway according to the carbon dioxide content, because the carbon dioxide content in the airway is usually high;

[0064] The pressure and carbon dioxide content data processed by the central control device 13 are wirelessly transmitted to the remote control 14 through the Wifi Bluetooth transmission module 9. After the wireless receiving module inside the remote control 14 receives the data, the pressure and carbon dioxide content information in the gastric tube 1 is displayed on the display screen. Medical staff can intuitively view the test results and make judgments and decisions.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure measuring device for gastric tube placement, characterized in that: It comprises a stomach tube (1), a detection device, a central control device (13), a detection tube (3) and a remote controller (14); The detection device comprises: A pressure gauge (2), the pressure gauge (2) is used to directly reflect the pressure in the stomach tube (1); A detection tube (3), the detection tube (3) being used to connect the stomach tube (1) and the pressure gauge (2) and transmit the pressure in the stomach tube (1) to the pressure gauge (2); an annular cylindrical air bag (4), wherein the annular cylindrical air bag (4) is capable of fitting with the inner wall of the gastric tube (1) after being inflated; The central control device (13) is used to process the air pressure signal and the carbon dioxide content in the gastric tube (1), and the central control device (13) is connected to the remote controller (14) by wireless communication.

2. A pressure measuring and detecting device for gastric tube placement according to claim 1, characterized in that: The 13 include: The central control device (13) comprises: A power supply (6), the power supply (6) being fixedly mounted in a housing of the central control device (13) and configured to supply power to electrical components in the central control device (13); A central control processor (7), wherein the central control processor (7) reads the air pressure value of the pressure gauge (2); a carbon dioxide content detection element (8), wherein the carbon dioxide content detection element (8) detects the carbon dioxide content in the gastric tube (1); The carbon dioxide content detection element (8) is connected to the central control processor (7), and the carbon dioxide content detection element (8) transmits the read carbon dioxide data to the central control processor (7); A Wifi Bluetooth transmission module (9), wherein the Wifi Bluetooth transmission module (9) transmits data from the central control processor (7) to the remote controller (14).

3. A pressure measuring and detecting device for gastric tube placement according to claim 2, characterized in that: The central control device (13) further comprises an air pump motor (10), wherein the input end of the air pump motor (10) is connected to an air inlet pipe (11), and the output end of the air pump motor (10) is connected to an air outlet pipe (12).

4. A pressure measuring and detecting device for gastric tube placement according to claim 3, characterized in that: The annular columnar airbag (4) is provided with an airbag inflation tube (5), and the airbag inflation tube (5) is connected to an air outlet tube (12).

5. A pressure measuring and detecting device for gastric tube placement according to claim 4, characterized in that: The two ends of the detection tube (3) act on the inside of the stomach tube (1) and the pressure gauge (2) respectively.

6. A pressure measuring and detecting device for gastric tube placement according to claim 5, characterized in that: The middle part of the annular columnar airbag (4) is a hollow structure, and one end of the detection tube (3) passes through the hollow structure, penetrates the annular columnar airbag (4) and extends into the interior of the gastric tube (1).

7. A pressure measuring and detecting device for gastric tube placement according to claim 6, characterized in that: The remote controller (14) is provided with a display screen for displaying received data.

8. A pressure measuring and detecting device for gastric tube placement according to claim 7, characterized in that: The remote controller (14) receives data transmitted by the central control device (13) via wireless communication, and displays the pressure and carbon dioxide content information in the gastric tube (1) on a display screen.

9. A pressure measuring and detecting device for gastric tube placement according to claim 8, characterized in that: The air pump motor (10) is used to control the inflation and deflation of the annular cylindrical airbag (4). The annular cylindrical airbag (4) should be elastic and seal against the inner wall of the gastric tube (1) when inflated.

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