Nutrition tube position detection device

Abstract

The invention discloses a nutrient canal position detection device, and relates to the technical field of medical instruments, and the technical scheme is characterized in that the nutrient canal position detection device comprises a detector and a detection tube, and the top of the detection tube is connected with the bottom of the detector; the detector comprises a detection head, a rotary connecting piece, an air pressure detection film and an annular buckle plate, clamping columns are arranged at the top of the detection head at intervals, the air pressure detection film is provided with penetrating holes matched with the clamping columns so that the clamping columns can be sleeved with the air pressure detection film, clamping grooves matched with the clamping columns are formed in the bottom of the annular buckle plate, and the annular buckle plate is detachably connected with the detection head; a limiting ring is arranged in the middle of the outer side face of the detection head, the rotary connecting piece is sleeved on the detection head and located above the limiting ring, and threads are arranged on the inner side of the rotary connecting piece to be connected with the detection pipe. According to the nutrient canal position detection device, the position of the nutrient canal is judged according to the change of the gas detection film on the top of the detector, the change of the gas pressure and the pH value, and the device is visual, convenient and easy to judge and use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and more particularly to a device for detecting the position of a feeding tube. Background Art

[0002] Insertion of a feeding tube is one of the most common technical operations in basic clinical nursing, but the position judgment after insertion has always been a difficult issue of concern to clinical nursing staff. Through the infusion of liquid food, water and medicine through the feeding tube, nutritional support can be provided for patients who cannot eat orally in clinical practice. However, during the insertion and retention of the feeding tube, improper placement or displacement, or even misplacement into the airway, may cause a series of complications, such as choking, respiratory tract infection, and even suffocation and death. Therefore, the position of the feeding tube must be judged when the feeding tube is first placed, before feeding food or medicine, and during continuous feeding.

[0003] Traditional methods for determining the position of a feeding tube include the following three: ① aspirating gastric contents with a syringe; ② injecting 10 ml of air into the tube and listening to the sound of air passing through water in the upper left abdomen with a stethoscope; ③ placing the end of the nasogastric feeding tube in a bowl of water to observe whether there are bubbles overflowing. However, in recent years, many guidelines have pointed out that these traditional methods of determination are not accurate. In addition to traditional methods of determination, other detection methods recommended by the guidelines currently mainly include X-ray, carbon dioxide concentration detection, magnetic tracking system, gastric content biochemical detection, ultrasound, spring pressure measurement instrument and pH detection method, but these tests have shown certain limitations. At present, the pH detection method is a method with a high level of evidence and strong clinical promotion in the guidelines. However, in actual clinical operation, it is often encountered that the amount of gastric fluid is small and cannot be extracted, which is not convenient for observation and position determination. When the feeding tube is mistakenly inserted into the airway, because the pH value of the secretory fluid in the airway is similar to the pH value of the secretory fluid in the esophagus, it is not possible to detect and determine whether the feeding tube has mistakenly entered the airway.

[0004] Therefore, the object of the present invention is to provide a detection device that can quickly and timely determine the position of a feeding tube. Summary of the invention

[0005] The purpose of the present invention is to provide a feeding tube position detection device, which can determine whether the feeding tube enters the airway during the insertion process by detecting the changes in the air pressure detection membrane on the detection device and the magnitude of the change in the air pressure value, and can determine whether the end of the feeding tube enters the stomach by detecting the pH value.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a nutrition tube position detection device, comprising a detector and a detection tube, the top of the detection tube is connected to the bottom of the detector; the detector comprises a detection head, a rotating connecting piece, an air pressure detection membrane and an annular buckle plate, the top of the detection head is provided with a clamping column at intervals, the air pressure detection membrane is provided with a perforation matching the clamping column so that the air pressure detection membrane is sleeved on the clamping column, the bottom of the annular buckle plate is provided with a clamping groove matching the clamping column, and the annular buckle plate is detachably connected to the detection head; a limit ring is provided in the middle of the outer side surface of the detection head, the rotating connecting piece is sleeved on the detection head and is located above the limit ring, and the inner side of the rotating connecting piece is provided with a thread connected to the detection tube.

[0007] The present invention is further configured as follows: a fixedly connected connecting ring is sleeved on the top of the detection head, and a display and control device is provided on the side of the connecting ring; a miniature air pressure sensor is provided on the inner wall of the detection head near the top, and the miniature air pressure sensor is connected to the display and control device.

[0008] The present invention is further configured as follows: the detection tube comprises a hose, a second annular connector is provided on the top of the hose; and a thread matching the rotating connector is provided on the side of the second annular connector.

[0009] The present invention is further configured as follows: the inner side wall of the hose is provided with a wire tube made integrally of the same material as the hose, a sealing member is provided at the bottom of the wire tube, and a pH detection end is provided in the middle of the sealing member; a display and control device is provided on the side of the detection head, a wire passage is provided inside the tube wall of the detection head, a data line is provided at the pH detection end, and the data line is connected to the display and control device after passing through the wire tube and the wire passage.

[0010] The present invention is further configured as follows: an annular clamping piece is provided on the top of the annular connecting piece 2, the clamping piece is provided with an integrally made protrusion, the top of the protrusion is provided with a data connection groove, a data connector is provided in the data connection groove, and the data line of the pH detection end is connected to the data connector; a connecting groove matching the clamping piece and the protrusion is provided at the bottom of the detection head, a data connection column matching the data connection groove is provided in the connection groove, the data connection column is provided with a data plug connected to the data connector, and the data plug is connected to the display and control device by setting a data line passage.

[0011] The present invention is further configured as follows: the display and control device includes a display and a number of functional control buttons, a circuit board and a power supply are provided inside the display and control device, and the display can display the change value and the magnitude of the change in the air pressure inside the detection head monitored by the micro air pressure sensor, and display the pH value detected by the pH detection end.

[0012] The present invention is further configured as follows: a trumpet-shaped protective ring is provided at the bottom of the annular connecting member 2, and the protective ring is made of silicone.

[0013] The present invention is further configured as follows: a fixedly connected annular connecting piece 1 is sleeved on the outer bottom of the detection head, and a thread matching the rotating connecting piece is provided on the side surface of the annular connecting piece 1.

[0014] In summary, the present invention has the following beneficial effects: 1. The nutrition tube position detection device of the present invention can determine whether the nutrition tube is mistakenly inserted into the airway through the changes in the gas detection membrane on the top of the detector, and it is intuitive, convenient and easy to use for judgment. 2. The changes in the air pressure in the detection head are monitored by a micro air pressure sensor, and the monitored value and change amplitude of the air pressure are displayed by the display and control device, which is convenient and intuitive to judge whether the nutrition tube is inserted into the airway. 3. The pH value of gastric acid detected by the pH detection end can be displayed by the display and control device, and the position of the end of the nutrition tube can be judged by reading the pH value to determine whether it has entered the stomach. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of a nutrition tube position detection device in an embodiment of the present invention;

[0016] Figure 2 is a schematic diagram of a detection tube in an embodiment of the present invention;

[0017] Figure 3 is a bottom view schematic diagram of a detection tube in an embodiment of the present invention;

[0018] Figure 4 is a schematic diagram of a detection head in an embodiment of the present invention;

[0019] Figure 5 is a schematic diagram of a detection head viewed from above in an embodiment of the present invention;

[0020] Figure 6 2 is a schematic diagram of the split structure of the detection head in an embodiment of the present invention;

[0021] Figure 7 Schematic diagram of the structure of the detection head in the embodiment of the present invention.

[0022] In the figure: 1. detection tube; 2. detection head; 3. display and control device; 4. annular buckle plate; 5. air pressure detection membrane; 6. rotating connector; 7. annular connector one; 8. data connection column; 101. hose; 102. annular connector two; 103. clamping part; 104. bump; 105. data connection groove; 106. wire tube; 107. sealing part; 108. pH detection end; 109. guard ring; 201. limit ring; 202. connecting ring; 203. clamping column; 204. wire passage; 205. data line; 301. display; 302. control button; 401. card slot; 501. perforation. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-7 The present invention is described in further detail.

[0024] Embodiment: A feeding tube position detection device, such as Figure 1-Figure 7 As shown, it includes a detector and a detection tube 1, the middle of the detector is hollow and ventilated, and the top of the detection tube 1 is connected to the bottom of the detector and installed at the bottom of the detector. The detector includes a detection head 2, a rotating connector 6, an air pressure detection membrane 5 and an annular buckle plate 4. A plurality of fixedly connected clamping columns 203 are arranged at intervals on the top of the detection head 2. The air pressure detection membrane 5 is provided with a perforation 501 matching the clamping column 203 so that the air pressure detection membrane 5 is sleeved on the clamping column 203, and the position of the air pressure detection membrane 5 is fixed and restricted by the clamping column 203. The bottom of the annular buckle plate 4 is provided with a clamping groove 401 matching the clamping column 203. The annular buckle plate 4 is detachably connected to the detection head 2. After the air pressure detection membrane 5 is fixed in position by the clamping column 203, the annular buckle plate 4 is buckled on the top of the detection head 2 so that the clamping column 203 is clamped in the clamping groove 401, and the air pressure detection membrane 5 is fixed and restricted to prevent the air pressure detection membrane 5 from being blown off due to air pressure during detection. A limiting ring 201 is provided in the middle of the outer side surface of the detection head 2, and the rotating connecting member 6 is sleeved on the detection head 2 and located above the limiting ring 201. The limiting ring 201 can effectively prevent the rotating connecting member 6 from slipping from the bottom of the detection head 2. A thread is provided on the inner side of the rotating connecting member 6 to connect with the detection tube 1, so that the detection tube 1 and the detection head 2 can be disassembled and connected.

[0025] When in use, the feeding tube is sleeved on the outside of the detection tube 1. When the feeding tube is mistakenly inserted into the airway during the insertion process, the air pressure in the airway changes with the breathing of the lungs, thereby causing the air pressure in the detection tube 1 to change accordingly, causing the air pressure detection membrane 5 on the detection head 2 to inflate and collapse as the air pressure changes. Medical staff can further determine whether the feeding tube is mistakenly inserted into the airway by observing the changes in the air pressure detection membrane 5.

[0026] The top of the detection head 2 is sleeved with a connecting ring 202 that is integrally manufactured and fixedly connected, and the side of the connecting ring 202 is provided with a display and control device 3. A micro air pressure sensor is provided near the top of the inner side wall of the detection head 2, and the micro air pressure sensor is connected to the display and control device 3. The detection tube 1 includes a hose 101, and a ring connector 102 is provided on the top of the hose 101; the side of the ring connector 102 is provided with a thread matching the rotating connector 6. When in use, the hose 101 is passed through the nutrition tube so that the nutrition tube is sleeved on the outside of the hose 101. When the nutrition tube is inserted, the nutrition tube is mistakenly inserted into the airway. Due to the change of the air pressure in the airway, the air pressure inside the hose 101 changes with the airway. The change of the air pressure in the detection head 2 is monitored by the micro air pressure sensor, and the monitoring value and the change amplitude of the air pressure are displayed by the display and control device 3, which is convenient for intuitively judging whether the nutrition tube is inserted into the airway. The rotating connector 6 is connected to the hose 101 through a threaded connection, so that the hose 101 and the detection head 2 can be disassembled, which is convenient for cleaning the hose 101.

[0027] The inner wall of the hose 101 is provided with a wire tube 106 made of the same material as the hose 101, and a seal 107 is provided at the bottom of the wire tube 106, and a pH detection end 108 is provided in the middle of the seal 107. A display and control device 3 is provided on the side of the detection head 2, and a wire passage 204 is provided inside the tube wall of the detection head 2. The pH detection end 108 is provided with a data line 205, and the data line 205 passes through the wire tube 106 and the wire passage 204 and is connected to the display and control device 3. The pH value of gastric acid detected by the pH detection end 108 can be displayed by the display and control device 3, and the position of the end of the nutrition tube can be determined by reading the pH value, and whether it has entered the stomach. The top of the annular connector 102 is provided with an annular clamp 103, and the clamp 103 is provided with an integrally made convex block 104, and the top of the convex block 104 is provided with a data connection groove 105, and a data connector is provided in the data connection groove 105, and the data line 205 of the pH detection end 108 is connected to the data connector. The bottom of the detection head 2 is provided with a connection groove matching the card 103 and the protrusion 104, and a data connection column 8 matching the data connection groove 105 is provided in the connection groove. The data connection column 8 is provided with a data plug connected to the data connector, and the data plug is connected to the display control device 3 through the line path 204 by setting a data line 205. When connecting, the protrusion 104 is placed in the connection groove for tight connection, and the data connection column 8 is inserted into the data connection groove 105, so that the data plug and the data connector are docked to complete the data transmission.

[0028] The display control device 3 includes a display 301 and a plurality of functional control buttons 302. A circuit board and a power supply are arranged inside the display control device 3. The display 301 can display the change value and the magnitude of the change of the air pressure inside the detection head 2 monitored by the micro air pressure sensor, and display the pH value detected by the pH detection end 108. By observing the change of the air pressure value and the magnitude of the change on the display 301 on the display control device 3, it can be judged whether the nutrition tube is inserted into the airway, and by observing the pH value, it can be judged whether the nutrition tube has entered the stomach.

[0029] A trumpet-shaped protective ring 109 is provided at the bottom of the annular connector 102, and the protective ring 109 is made of silicone. After the nutrition tube is sleeved on the hose 101, its top comes into contact with the silicone protective ring 109, which can effectively prevent the nutrition tube from damaging the surface of the detector and is convenient for use. A fixedly connected annular connector 7 is sleeved on the bottom of the outer side of the detection head 2, and a thread matching the rotating connector 6 is provided on the side of the annular connector 7. The rotating connector 6 is fixed by the threaded connection ring 202-shaped connector 7 to avoid and reduce the sliding of the rotating connector 6 on the detection head 2.

[0030] Working principle: When the feeding tube position detection device of the present invention is used, the hose 101 of the detection tube 1 is passed through the feeding tube, and then the feeding tube and the hose 101 are inserted into the stomach through the esophagus. During the insertion process, if the feeding tube is mistakenly inserted into the airway, the air pressure in the airway changes with the breathing of the lungs, thereby causing the air pressure in the detection tube 1 to change accordingly, causing the air pressure detection membrane 5 on the detection head 2 to bulge and collapse with the change of air pressure. At the same time, by observing the monitoring value of the air pressure and the change amplitude of the air pressure value of the display 301 on the display control device 3, the medical staff can further judge whether the feeding tube is mistakenly inserted into the airway by combining the changes of the air pressure detection membrane 5. After the feeding tube is inserted, the pH value of the environment is detected by the pH detection end 108 at the bottom of the hose 101, and the detected pH value is displayed through the display 301 to judge whether the feeding tube is in and out of the stomach.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A nutrition tube position detection device, characterized in that: The invention comprises a detector and a detection tube (1), wherein the top of the detection tube (1) is connected to the bottom of the detector; the detector comprises a detection head (2), a rotating connection member (6), an air pressure detection membrane (5) and an annular buckle plate (4); a clamping column (203) is arranged at intervals on the top of the detection head (2); the air pressure detection membrane (5) is provided with a perforation (501) matching the clamping column (203) so that the air pressure detection membrane (5) is sleeved on the clamping column (203); a clamping groove (401) matching the clamping column (203) is arranged at the bottom of the annular buckle plate (4); the annular buckle plate (4) is detachably connected to the detection head (2); a limiting ring (201) is arranged in the middle of the outer side surface of the detection head (2); the rotating connection member (6) is sleeved on the detection head (2) and is located above the limiting ring (201); and a thread is arranged on the inner side of the rotating connection member (6) so as to be connected to the detection tube (1).

2. A feeding tube position detection device according to claim 1, characterized in that: The top of the detection head (2) is sleeved with a fixedly connected connecting ring (202), and the side of the connecting ring (202) is provided with a display and control device (3); the inner side wall of the detection head (2) is provided with a micro air pressure sensor near the top, and the micro air pressure sensor is connected to the display and control device (3).

3. A feeding tube position detection device according to claim 1, characterized in that: The detection tube (1) comprises a hose (101), the top of which is provided with a second annular connector (102); the side of the second annular connector (102) is provided with a thread matching the rotating connector (6).

4. A feeding tube position detection device according to claim 3, characterized in that: The inner wall of the hose (101) is provided with a wire tube (106) made of the same material as the hose (101), the bottom of the wire tube (106) is provided with a sealing member (107), and the middle of the sealing member (107) is provided with a pH detection end (108); the side of the detection head (2) is provided with a display and control device (3), the interior of the tube wall of the detection head (2) is provided with a wire passage (204), the pH detection end (108) is provided with a data line (205), and the data line (205) is connected to the display and control device (3) after passing through the wire tube (106) and the wire passage (204).

5. A feeding tube position detection device according to claim 4, characterized in that: The top of the annular connecting member (102) is provided with an annular clamping member (103), the clamping member (103) is provided with an integrally manufactured convex block (104), the top of the convex block (104) is provided with a data connection groove (105), a data connector is provided in the data connection groove (105), and a data line (205) of the pH detection end (108) is connected to the data connector; the bottom of the detection head (2) is provided with a connection groove matching the clamping member (103) and the convex block (104), a data connection column (8) matching the data connection groove (105) is provided in the connection groove, the data connection column (8) is provided with a data plug connected to the data connector, and the data plug is connected to the display control device (3) through the line path (204) by setting a data line (205).

6. A feeding tube position detection device according to claims 2-5, characterized in that: The display and control device (3) comprises a display (301) and a plurality of functional control buttons (302). A circuit board and a power supply are provided inside the display and control device (3). The display (301) is capable of displaying the value of the change in the air pressure inside the detection head (2) monitored by the micro air pressure sensor and the magnitude of the change in the value, and displaying the pH value detected by the pH detection end (108).

7. A feeding tube position detection device according to claim 3, characterized in that: A trumpet-shaped protective ring (109) is provided at the bottom of the annular connecting member 2 (102), and the protective ring (109) is made of silicone material.

8. A feeding tube position detection device according to claim 1, characterized in that: The outer bottom of the detection head (2) is sleeved with a fixedly connected annular connecting piece (7), and the side surface of the annular connecting piece (7) is provided with a thread matching the rotating connecting piece (6).

Images