A gastric tube with anti-extrusion and pressure monitoring functions
Patent Information
- Application Number
- CN202520939704.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-05-13
AI Technical Summary
然而,胃管意外脱出是常见的并发症,可能导致误吸、肺炎、液体电解质紊乱甚至死亡,给患者带来痛苦,增加护理负担和医疗成本
[0019] The embodiments of this utility model use an airbag with two inflatable chambers to fix the gastric tube, thereby ensuring that the gastric tube cannot be immediately dislodged in the event of displacement, compression, insufficient inflation, or leakage. At the same time, two pressure sensors are used to monitor the air pressure in the two inflatable chambers to ensure that medical staff can handle the situation in a timely manner.
Smart Images

Figure CN224723456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gastric tubes, specifically to a gastric tube with anti-dislodgement and pressure monitoring functions. Background Technology
[0002] Gastric tubes are widely used in clinical practice for nutritional support, drug infusion, and gastrointestinal decompression. However, accidental dislodgement of the gastric tube is a common complication, which can lead to aspiration, pneumonia, electrolyte imbalance, and even death, causing suffering for patients and increasing the burden of care and medical costs. Currently, clinical practice mainly relies on observing external markings of the gastric tube, monitoring the characteristics of drainage, and imaging examinations such as X-rays to determine the position of the gastric tube. These methods have drawbacks such as lag, subjectivity, and the inability to continuously monitor. Utility Model Content
[0003] The purpose of this invention is to provide a gastric tube with anti-dislodgement and pressure monitoring functions, which aims to improve the safety of gastric tube placement, provide timely warning of dislodgement risk, and provide buffer time in case of accidental balloon failure.
[0004] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:
[0005] A gastric tube with anti-dislodgement and pressure monitoring functions includes:
[0006] The tube body has a first inflation chamber, a second inflation chamber, and a main functional chamber arranged longitudinally inside the tube body;
[0007] A dual-chamber airbag is located near the distal end of the tube body. The interior of the dual-chamber airbag is divided into a first chamber and a second chamber by a diaphragm. The distal opening of the first inflation chamber is located inside the first chamber, and the distal opening of the second inflation chamber is located inside the second chamber. The proximal end of the first inflation chamber forms a first inflation port, and the proximal end of the second inflation chamber forms a second inflation port.
[0008] The T-shaped tee has a first end connected to the first inflation port and the second inflation port, a second end for connecting to an external air source or liquid source, and a third end on the same straight line as the first end.
[0009] A pressure monitoring component is connected to the third end and can slide from the third end to the first end to block the first inflation port and the second inflation port, and monitor the air pressure of the first inflation port and the second inflation port.
[0010] Furthermore, the pressure monitoring component includes:
[0011] A first tube plug, the first tube plug being adapted to be inserted into and seal the interior of the first inflation port;
[0012] A second tube plug, the second tube plug being adapted to be inserted into the interior of the second inflation port and to seal it;
[0013] A first pressure sensor, embedded in the first tube plug, is used to detect the air pressure inside the sealed space formed by the first chamber and the first inflation channel when the first tube plug closes the first inflation port.
[0014] A second pressure sensor, embedded in the second tube plug, is used to detect the air pressure inside the sealed space formed by the second chamber and the second inflation channel when the second tube plug closes the second inflation port.
[0015] Furthermore, the first pressure sensor and the second pressure sensor are connected to an external monitoring and alarm unit via wires or wireless means.
[0016] Furthermore, the proximal end of the main functional cavity is connected to an opening with a closing cap.
[0017] Furthermore, the farthest end of the main functional cavity is closed, and one or more side holes communicating with the main functional cavity are provided on the side wall at the location between the farthest end of the tube and the dual-cavity airbag.
[0018] Compared with the prior art, this application has the following advantages:
[0019] The embodiments of this utility model use an airbag with two inflatable chambers to fix the gastric tube, thereby ensuring that the gastric tube cannot be immediately dislodged in the event of displacement, compression, insufficient inflation, or leakage. At the same time, two pressure sensors are used to monitor the air pressure in the two inflatable chambers to ensure that medical staff can handle the situation in a timely manner. Attached Figure Description
[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.
[0021] Figure 1 This is a top view of an embodiment of the present utility model;
[0022] Figure 2 for Figure 1 A cross-sectional view along the AA direction;
[0023] Figure 3 This is a front view of an embodiment of the present utility model;
[0024] Figure 4 for Figure 3 A cross-sectional view along the BB direction;
[0025] Figure 5 This is a three-dimensional assembly drawing of an embodiment of the present utility model;
[0026] The labels in the diagram represent the following:
[0027] 1-Tube body; 11-First inflation chamber; 12-Second inflation chamber; 13-Main functional chamber; 14-Closing cap; 15-Side hole; 2-Dual-chamber airbag; 21-Diaphragm; 22-First chamber; 23-Second chamber; 3-T-shaped tee; 31-First end; 32-Second end; 33-Third end; 4-Pressure monitoring assembly; 41-First tube plug; 42-Second tube plug; 43-First pressure sensor; 44-Second pressure sensor. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] This embodiment provides a gastric tube with anti-dislodgement and pressure monitoring functions, which aims to improve the safety of gastric tube placement, provide timely warning of dislodgement risk, and provide buffer time in case of accidental balloon failure.
[0030] The distal end, as mentioned below, refers to the insertion end of the gastric tube, that is, the end furthest from the doctor. The proximal end, as mentioned below, refers to the operating end of the gastric tube, that is, the end closest to the doctor.
[0031] Combination Figures 1 to 5 The gastric tube includes: tube body 1, double-lumen balloon 2, and T-type three-way valve 3.
[0032] The tube body 1 has at least three independent internal cavities arranged longitudinally inside: a first inflation cavity 11, a second inflation cavity 12, and a main functional cavity 13.
[0033] The proximal end of the main functional cavity 13 is connected to an opening with a closing cap 14 for connecting a nutrition infusion device, a drug infusion device, or a negative pressure suction device. The distal end of the main functional cavity 13 is closed. One or more side holes 15 are provided on the side wall at the location between the distal end of the tube body 1 and the double-lumen balloon 2. The side holes 15 communicate with the main functional cavity 13 for drainage of gastric contents, infusion of nutrient solution, or drug.
[0034] The dual-chamber airbag 2 is located near the distal end of the tube 1. The interior of the dual-chamber airbag 2 is divided into two independent, non-communicating inflatable chambers by a diaphragm 21, namely the first chamber 22 and the second chamber 23.
[0035] The distal opening of the first inflation channel 11 is located inside the first chamber 22, and the distal opening of the second inflation channel 12 is located inside the second chamber 23. The proximal end of the first inflation channel 11 forms a first inflation port, and the proximal end of the second inflation channel 12 forms a second inflation port. The first inflation port and the second inflation port are used to connect to an external air source or liquid source, thereby inflating the first chamber 22 and the second chamber 23 with air or liquid, causing the dual-chamber airbag 2 to inflate.
[0036] The first end 31 of the T-shaped tee 3 is connected to the first inflation port and the second inflation port. The second end 32 is used to connect to an external air source or liquid source. The third end 33 is connected to a pressure monitoring component 4. The third end 33 and the first end 31 are on the same straight line, so that the pressure monitoring component 4 can slide from the third end 33 to the first end 31, blocking the first inflation port and the second inflation port, and monitoring the air pressure of the first inflation port and the second inflation port.
[0037] The pressure monitoring component 4 includes: a first plug 41, a second plug 42, a first pressure sensor 43, and a second pressure sensor 44.
[0038] The first pressure sensor 43 is embedded in the first tube plug 41 and is used to detect the air pressure inside the sealed space composed of the first chamber 22 and the first inflation channel 11 when the first tube plug 41 is inserted into the first inflation port and the first inflation port is closed.
[0039] The second pressure sensor 44 is embedded in the second tube plug 42 and is used to detect the air pressure inside the sealed space composed of the second chamber 23 and the second inflation channel 12 when the second tube plug 42 is inserted into the interior of the second inflation port and the second inflation port is closed.
[0040] Two pressure sensors are connected to an external monitoring and alarm unit (not shown) via wires or wirelessly. This unit can display the pressure values of the two chambers in real time and has preset pressure thresholds. When the pressure in either chamber is lower than the preset safety threshold, the unit can issue an audible and visual alarm signal to prompt medical staff to check or handle the situation.
[0041] The working principle of this utility model:
[0042] Intubation and inflation: After the gastric tube is inserted into the predetermined position, the two inflation chambers are inflated with an appropriate amount of gas through the second end 32 of the T-type three-way valve 3. The double-chamber balloon 2 inflates to fix the tube in place. Then, the pressure monitoring component 4 is moved to close the first inflation port and the second inflation port.
[0043] Real-time monitoring: The first pressure sensor 43 and the second pressure sensor 44 continuously monitor the pressure of the two inflation chambers and transmit the data to the monitoring and alarm unit.
[0044] Risk warning: If the gastric tube is displaced, compressed, underinflated, or leaks, resulting in abnormal pressure (too high or too low) in any of the inflation chambers, the monitoring unit will sound an alarm. The other inflation chamber will still maintain some fixation to prevent the gastric tube from immediately and completely dislodging.
[0045] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered as falling within the scope of protection of this utility model.
Claims
1. A gastric tube with anti-dislodgement and pressure monitoring functions, characterized in that, include: The tube body (1) has a first inflation chamber (11), a second inflation chamber (12) and a main functional chamber (13) arranged longitudinally inside the tube body (1); A dual-chamber airbag (2) is located near the distal end of the tube (1). The interior of the dual-chamber airbag (2) is divided into a first chamber (22) and a second chamber (23) by a diaphragm (21). The distal opening of the first inflation channel (11) is located inside the first chamber (22), and the distal opening of the second inflation channel (12) is located inside the second chamber (23). The proximal end of the first inflation channel (11) forms a first inflation port, and the proximal end of the second inflation channel (12) forms a second inflation port. T-shaped tee (3), the first end (31) of the T-shaped tee (3) is connected to the first inflation port and the second inflation port, the second end (32) of the T-shaped tee (3) is used to connect to an external air source or liquid source, and the third end (33) of the T-shaped tee (3) is on the same straight line as the first end (31); The pressure monitoring component (4) is connected to the third end (33) and can slide from the third end (33) to the first end (31) to block the first inflation port and the second inflation port, and monitor the air pressure of the first inflation port and the second inflation port.
2. A gastric tube with anti-dislodgement and pressure monitoring functions according to claim 1, characterized in that, The pressure monitoring component (4) includes: A first tube plug (41) is adapted to be inserted into and seal the interior of the first inflation port; The second tube plug (42) is adapted to be inserted into the interior of the second inflation port and to close it; A first pressure sensor (43) is embedded in the first tube plug (41) and is used to detect the air pressure inside the sealed space composed of the first chamber (22) and the first inflation channel (11) when the first tube plug (41) closes the first inflation port. The second pressure sensor (44) is embedded in the second tube plug (42) and is used to detect the air pressure inside the sealed space composed of the second chamber (23) and the second inflation channel (12) when the second tube plug (42) closes the second inflation port.
3. A gastric tube with anti-dislodgement and pressure monitoring functions according to claim 2, characterized in that, The first pressure sensor (43) and the second pressure sensor (44) are connected to an external monitoring and alarm unit via wires or wireless means.
4. A gastric tube with anti-dislodgement and pressure monitoring functions according to claim 1, characterized in that, The proximal end of the main functional cavity (13) is connected to an opening with a closing cap (14).
5. A gastric tube with anti-dislodgement and pressure monitoring functions according to claim 1, characterized in that, The farthest end of the main functional cavity (13) is closed. On the side wall at the location between the farthest end of the tube (1) and the double-lumen airbag (2), one or more side holes (15) communicating with the main functional cavity (13) are provided.