Esophagus medicine applying device for patient in digestive system department

Abstract

The invention discloses an esophagus medicine applying device for a patient in the digestive system department, and relates to the field of medical equipment, the esophagus medicine applying device comprises a medicine applying pipe, an air pipe is fixedly mounted at the bottom of the outer surface of the medicine applying pipe, and a protective air bag is fixedly mounted on one side of the medicine applying pipe and one side of the air pipe; a pressure sensor is installed on the edge portion of one side of the outer surface of the extending pipe, a dosing mechanism is arranged on the outer surface of the medicine applying pipe and used for adjusting different types of dosing modes, the dosing mechanism comprises a dosing connecting part, the dosing connecting part is fixedly installed on the position, close to the upper portion of the protective air bag, of the outer surface of the medicine applying pipe, and a fixing groove is formed in the middle of one side of the outer surface of the dosing connecting part; the closed administration area is formed by inflating the protective air bag, and by matching with real-time monitoring of the pressure sensor, medicine is effectively prevented from flowing back to the stomach and entering the airway by mistake, discomfort such as nausea and sour regurgitation of a patient is reduced, lung injury is avoided, and the administration safety is improved compared with the prior art.

Description

Technical Field

[0001] This invention relates to medical device technology, specifically to an esophageal medication administration device for patients in the gastroenterology department. Background Technology

[0002] Esophageal medication administration for gastroenterology patients is a clinical treatment method for local esophageal diseases such as esophagitis, esophageal ulcers, and Barrett's esophagus. The core principle is to deliver medication directly to the lesion site in the esophagus using a specialized tool, achieving local anti-inflammatory effects, mucosal repair, and lesion inhibition, while avoiding the side effects of systemic medication. When using commonly used esophageal medication administration tools, the patient is first placed in a supine or semi-recumbent position with their head slightly tilted back to open the esophageal passage. The medical staff holds the medication administration tool and slowly inserts the catheter or nozzle into the esophagus through the patient's mouth or nose. After locating the lesion using clinical experience or a simple laryngoscope, liquid / gel medication is injected using a syringe, or atomized medication is released by pressing a spray device, completing the local drug delivery.

[0003] In clinical use, existing esophageal medication delivery devices suffer from several drawbacks. Due to the naturally curved shape of the esophagus and the fact that lesions are often located in the lower half of the esophagus, these devices lack precise positioning and anti-reflux structures. After administration, the medication is easily affected by esophageal peristalsis and gravity, sliding down the esophagus into the patient's stomach. This not only irritates the gastric mucosa, causing nausea, acid reflux, and stomach pain, but also prevents the medication from reaching the lesion, significantly wasting its efficacy. Furthermore, the nozzle direction of spray-type medication delivery devices is difficult to control precisely. The atomized drug particles are small and easily enter adjacent airways during administration due to the patient's swallowing movements, coughing reflexes, or nozzle misalignment. This can irritate the airway mucosa, causing coughing and wheezing. In severe cases, drug particles may deposit in the lungs, potentially leading to lung inflammation, infection, and other damage. These problems not only reduce the therapeutic effect of esophageal medication delivery but also cause additional harm to the patient, significantly reducing the overall safety of medication delivery devices in clinical use. Summary of the Invention

[0004] The purpose of this invention is to provide an esophageal medication administration device for patients in the gastroenterology department, in order to solve the problems of existing esophageal medication administration devices for the gastroenterology department, such as easy reflux of drugs into the stomach, easy accidental entry into the airway, and inability to classify and adapt to multiple drugs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an esophageal medication administration device for gastroenterology patients, comprising a medication administration tube, an endotracheal tube fixedly installed at the bottom of the outer surface of the medication administration tube, a protective airbag fixedly installed on one side of the medication administration tube and the endotracheal tube, an extension tube extending from one side of the endotracheal tube into the protective airbag, a pressure sensor installed on one side of the outer surface of the extension tube, and a medication dispensing mechanism provided on the outer surface of the medication administration tube for adjusting different types of medication dispensing methods;

[0006] The drug delivery mechanism includes a drug delivery connection part, which is fixedly installed on the outer surface of the drug delivery tube near the upper part of the protective airbag. A fixing groove is provided in the middle of one side of the outer surface of the drug delivery connection part. Several drug delivery connectors are provided inside the fixing groove. A movable kit is movably fitted on the outer surface of the drug delivery connection part. A drug delivery nozzle is fixedly installed in the middle of one side of the outer surface of the movable kit.

[0007] A drug injection tube is fixedly installed on the other side of the drug supply tube. A drug injection piston rod is movably installed on one side of the drug injection tube. A drug storage device is installed below the drug injection tube. An air pump is fixedly installed on one side of the drug storage device. A No. 1 connector is installed at the output end of the upper surface of the air pump. A No. 1 connecting hose is fixedly installed on the other side of the air tube. One side of the No. 1 connecting hose extends to the outer surface of the No. 1 connector.

[0008] The drug storage device is also equipped with a drug sorting and delivery component, which is used to sort and deliver drugs according to different drug requirements.

[0009] Furthermore, the sorting and delivery component includes several drug storage cavities, which are arranged side by side inside the drug storage device. A drug delivery pump is installed at the top of the inner wall of each drug storage cavity extending to the upper surface of the drug storage device. A second connector is installed on the upper surface of the drug delivery pump. A third connector is installed on one side of the injection tube near the junction with the drug delivery tube. A second connecting hose is installed between the third connector and a single second connector.

[0010] Furthermore, a drug filling port is provided at the bottom of the front face of the drug storage device, corresponding to the position of the drug storage cavity. An on / off switch is installed on the front face of the drug storage device near the drug filling port, and the on / off switch is used to control the opening and closing of the drug delivery pump.

[0011] Furthermore, a support is fixedly installed on the outer surface of the drug delivery tube and the trachea near the drug delivery connection. A miniature camera is installed at the bottom of one end of the support. A display screen is installed on the top of the front face of the drug storage device. The display screen is used in conjunction with the miniature camera to observe the condition of the esophageal wound.

[0012] Furthermore, a hollow bronchus is movably installed on the outer surface of the medication tube and the trachea, and an elastic occlusal pad is fitted on one side of the outer surface of the hollow bronchus, the elastic occlusal pad being located at the patient's mouth.

[0013] Furthermore, a first through hole is formed in the middle of one side of the elastic bite pad, one side of the outer surface of the hollow branch tube is located in the first through hole, a second through hole is formed in the middle of one side of the hollow branch tube, and the medicine delivery tube and the air tube are located in the second through hole.

[0014] Furthermore, positioning grooves are provided at both the upper and lower ends of the inner wall of the movable kit, and protrusions are fixedly installed at both the upper and lower ends of the outer surface of the drug delivery connection. The positioning grooves are located on the outer surface of the protrusions, and the drug delivery connection and the movable kit are interlocked.

[0015] Furthermore, the number of drug delivery connectors is three, and each drug delivery connector is connected to the inside of the upper drug tube. The drug delivery nozzle is connected to a single drug delivery connector, and the remaining drug delivery connectors are sealed against the inner wall of the movable kit.

[0016] Compared with the prior art, the esophageal medication administration device for gastroenterology patients provided by the present invention has the following beneficial effects:

[0017] 1. This invention forms a closed drug delivery area by inflating a protective airbag, and with real-time monitoring by a pressure sensor, it effectively prevents drugs from flowing back into the stomach and entering the airway, reduces patient discomfort such as nausea and acid reflux, avoids lung damage, and improves the safety of drug delivery compared with existing technologies.

[0018] 2. This invention allows for the switching of different drug delivery connectors through the movable kit of the drug delivery mechanism, and the multi-cabin design of the classified drug delivery component can accommodate various dosage forms such as liquids, gels, and sprays, eliminating the need for frequent device replacements. Compared with existing technologies, this invention improves the adaptability and drug delivery efficiency of the device.

[0019] 3. This invention, through the visual combination of a miniature camera and a display screen, allows medical staff to accurately locate the lesion, ensuring that the drug is applied precisely to the lesion and avoiding drug waste. Compared with existing technologies, it improves the accuracy of drug application.

[0020] 4. The present invention can fix the position of the catheter by means of an elastic bite pad, reducing the impact of patient head movement on drug delivery. At the same time, the flexible material improves patient comfort, and improves the stability of use and patient experience compared with the prior art. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a medicine storage device provided in an embodiment of the present invention;

[0024] Figure 3This is a schematic diagram of the cross-sectional structure of the medicine delivery tube and trachea provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the elastic occlusal pad structure provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the active kit structure provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the pressure sensor structure provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Medication tube; 2. Trachea; 3. Protective airbag; 4. Extension tube; 5. Pressure sensor; 6. Drug delivery connection; 7. Fixing groove; 8. Drug delivery connector; 9. Movable kit; 10. Positioning groove; 11. Drug delivery nozzle; 12. Support; 13. Miniature camera; 14. Injection tube; 15. Drug delivery piston rod; 16. Drug storage device; 17. Air pump; 18. Connector No. 1; 19. Connecting hose No. 1; 20. Drug storage cavity; 21. Drug delivery pump; 22. Connector No. 2; 23. Connector No. 3; 24. Connecting hose No. 2; 25. Drug filling port; 26. On / off switch; 27. Display screen; 28. Hollow branch tube; 29. ​​Elastic bite pad. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] As attached Figure 1 To be continued Figure 6 As shown:

[0032] Example 1:

[0033] This invention provides an esophageal medication administration device for patients in the gastroenterology department, including a medication administration tube 1, an endotracheal tube 2 fixedly installed at the bottom of the outer surface of the medication administration tube 1, a protective airbag 3 fixedly installed on one side of the medication administration tube 1 and the endotracheal tube 2, an extension tube 4 extending from one side of the endotracheal tube 2 into the protective airbag 3, a pressure sensor 5 installed on one side of the outer surface of the extension tube 4, and a medication administration mechanism provided on the outer surface of the medication administration tube 1 for adjusting different types of medication administration methods;

[0034] The dosing mechanism includes a dosing connection part 6, which is fixedly installed on the outer surface of the upper drug tube 1 near the upper part of the protective air bag 3. A fixing groove 7 is provided in the middle of one side of the outer surface of the dosing connection part 6. Several dosing connectors 8 are provided inside the fixing groove 7. A movable kit 9 ​​is movably fitted on the outer surface of the dosing connection part 6. A dosing nozzle 11 is fixedly installed in the middle of one side of the outer surface of the movable kit 9.

[0035] The upper and lower ends of the inner wall of the active kit 9 ​​are provided with positioning grooves 10. The upper and lower ends of the outer surface of the drug delivery connection part 6 are fixedly installed with protrusions. The positioning grooves 10 are located on the outer surface of the protrusions. The drug delivery connection part 6 and the active kit 9 ​​fit together.

[0036] There are three drug delivery connectors 8, and each drug delivery connector 8 is connected to the inside of the upper drug tube 1. The drug delivery nozzle 11 is connected to a single drug delivery connector 8, and the remaining drug delivery connectors 8 are sealed against the inner wall of the movable kit 9.

[0037] A drug injection tube 14 is fixedly installed on the other side of the drug supply tube 1. A drug injection piston rod 15 is movably installed on one side of the drug injection tube 14. A drug storage device 16 is installed below the drug injection tube 14. An air pump 17 is fixedly installed on one side of the drug storage device 16. A connector 18 is installed at the output end of the upper surface of the air pump 17. A connecting hose 19 is fixedly installed on the other side of the air tube 2. One side of the connecting hose 19 extends to the outer surface of the connector 18.

[0038] The medicine storage device 16 is also equipped with a classification and delivery component for classifying and delivering medicines according to different drug requirements.

[0039] Working principle: First, medical staff assist the patient to lie supine with the head tilted back to open the esophageal passage. The elastic bite pad 29 is placed on the outer surface of the hollow bronchus tube 28, and the patient bites gently. The initial position of the medication tube 1 and the trachea 2 is fixed through the second through hole of the hollow bronchus tube 28 to prevent the tube from shifting.

[0040] Next, the medical staff hold the ends of the medication tube 1 and the trachea 2 and slowly insert them into the esophagus through the patient's mouth, while observing the display screen 27 of the medication storage device 16 to make a preliminary judgment on the insertion depth of the catheter. When the protective airbag 3 reaches the preset position below the lesion, the insertion is stopped, and the air pump 17 is started. The air pump 17 inflates the protective airbag 3 through the first connector 18, the first connecting hose 19 and the trachea 2. The pressure sensor 5 on the extension tube 4 transmits the pressure data inside the airbag to the display screen 27 in real time. The medical staff controls the inflation amount according to the pressure value until the protective airbag 3 expands and fits tightly against the inner wall of the esophagus to form a closed drug delivery area to prevent drug reflux or accidental entry into the airway. Then the air pump 17 is turned off.

[0041] Then, the medical staff slide the movable kit 9 ​​according to the drug dosage form, and use the positioning groove 10 on the inner wall of the movable kit 9 ​​to interlock with the protrusion on the outer surface of the drug delivery connection part 6 to ensure that the movable kit 9 ​​slides in a directional manner, so that the drug delivery nozzle 11 is connected to the corresponding type of drug delivery connector 8. The remaining two drug delivery connectors 8 are sealed by the inner wall of the movable kit 9 ​​to prevent drug leakage.

[0042] If manual administration is used, medical staff inject the drug into the injection tube 14 and push the drug delivery piston rod 15. The drug enters the upper drug tube 1 through the injection tube 14 and is precisely applied to the lesion through the through-through drug delivery connector 8 and drug delivery nozzle 11. During the drug administration process, the sealed protective airbag 3 prevents the drug from sliding down into the stomach, and the pressure sensor 5 continuously monitors the airbag pressure to ensure stable pressure and avoid compressing the esophageal mucosa.

[0043] After the medication is administered, the air pump 17 is started to slowly deflate. After the protective airbag 3 is fully contracted, the medical staff slowly pulls out the medication tube 1 and the trachea 2, and asks the patient to loosen the elastic bite pad 29 to complete the medication administration process.

[0044] Example 2:

[0045] This embodiment is basically the same as the previous embodiment, except that the classification and delivery component includes several drug storage cavities 20, which are arranged in parallel inside the drug storage device 16. A drug delivery pump 21 is provided at the top of the inner wall of the drug storage cavity 20 extending to the upper surface of the drug storage device 16. A second connector 22 is provided on the upper surface of the drug delivery pump 21. A third connector 23 is installed on one side of the injection tube 14 near the junction with the drug delivery tube 1. A second connecting hose 24 is installed between the third connector 23 and the single second connector 22.

[0046] A drug filling port 25 is provided at the bottom of the front face of the drug storage device 16, corresponding to the position of the drug storage cavity 20. An on / off switch 26 is installed on the front face of the drug storage device 16 above the drug filling port 25. The on / off switch 26 is used to control the opening and closing of the drug delivery pump 21.

[0047] Working principle: First, according to the patient's treatment plan, medical staff inject liquid anti-inflammatory drugs, gel mucosal protectants, spray hemostatic agents, and other corresponding dosage forms of drugs into different drug storage chambers 20 through the drug filling port 25 on the drug storage device 16. After the injection is completed, the sealing cap of the drug filling port 25 is tightened to ensure that the drug storage is sealed.

[0048] Next, following the steps in Example 1, the patient's position is fixed, the catheter is inserted, and the protective airbag 3 is inflated and sealed. According to the medication to be used, one end of the corresponding No. 2 connecting hose 24 is connected to the No. 2 connector 22 of the drug storage cavity 20, and the other end is connected to the No. 3 connector 23 of the injection tube 14 to realize the docking of the drug delivery channel.

[0049] Then, the medical staff slide the movable kit 9 ​​to make the drug delivery nozzle 11 connect with the drug delivery connector 8 that is compatible with the drug dosage form, press the on / off switch 26 corresponding to the front end of the drug storage device 16, start the drug delivery pump 21, extract the drug in the corresponding drug storage cavity 20, deliver it to the injection tube 14 through the second connecting hose 24, and then enter the drug supply tube 1, and act evenly on the lesion through the drug delivery connector 8 and the drug delivery nozzle 11.

[0050] To switch medications, turn off the current on / off switch 26, disconnect the corresponding second connecting tubing 24, connect the second connector 22 to the drug storage cavity 20 where the target medication is located, slide the movable kit 9 ​​to switch the appropriate drug delivery connector 8, and press the corresponding on / off switch 26 to achieve quick medication change without disassembling the catheter or replacing the device, thus improving drug delivery efficiency.

[0051] Example 3:

[0052] This embodiment is basically the same as the previous embodiment, except that a support part 12 is fixedly installed on the outer surface of the drug delivery tube 1 and the trachea 2 near the drug delivery connection part 6. A miniature camera 13 is provided at the bottom of one end of the support part 12, and a display screen 27 is provided on the top of the front end of the drug storage device 16. The display screen 27 is used to observe the condition of the esophageal wound in conjunction with the miniature camera 13.

[0053] Working principle: First, medical staff complete the patient's body position fixation and elastic occlusal pad 29 installation according to the steps of Example 1, and start the miniature camera 13. The camera's built-in LED supplement light illuminates the inside of the esophagus and transmits the real-time image to the display screen 27 of the drug storage device 16. Medical staff can accurately identify the location, size and shape of the lesion through the clear image.

[0054] Next, based on the image displayed on the screen 27, the insertion depth of the medication tube 1 is finely adjusted so that the medication nozzle 11 is aligned with the center of the lesion and the protective airbag 3 is positioned appropriately below the lesion. The air pump 17 is started to inflate the protective airbag 3, and the pressure sensor 5 displays the real-time pressure data synchronously on the screen 27. Medical staff control the inflation volume to ensure that the protective airbag 3 fits against the inner wall of the esophagus without damaging the mucosa, forming a closed area.

[0055] Then, medical staff slide the active kit 9 ​​to switch the appropriate drug delivery connector 8, and choose to administer the drug manually or through the classified drug delivery component as needed. During the drug administration process, medical staff can observe the coverage of the lesion with the drug in real time through the display screen 27. If the drug coverage is not complete, the effect can be optimized by fine-tuning the catheter position or increasing the dosage. At the same time, the pressure value of the pressure sensor 5 is monitored to avoid discomfort caused by abnormal airbag pressure.

[0056] After the medication is administered, the display screen 27 confirms that the medication has been fully applied to the lesion. The air pump 17 is then activated to release the air. After the protective airbag 3 contracts, the catheter is slowly withdrawn, and the miniature camera 13 is turned off to complete the medication administration.

[0057] Example 4:

[0058] This embodiment is basically the same as the previous embodiment, except that a hollow branch tube 28 is movably installed on the outer surface of the medication tube 1 and the trachea 2, and an elastic biting pad 29 is sleeved on one side of the outer surface of the hollow branch tube 28, and the elastic biting pad 29 is located at the patient's mouth.

[0059] A first through hole is opened in the middle of one side of the elastic bite pad 29. One side of the outer surface of the hollow branch tube 28 is located in the first through hole. A second through hole is opened in the middle of one side of the hollow branch tube 28. The medicine tube 1 and the air tube 2 are located in the second through hole.

[0060] Working principle: First, medical staff align the No. 2 through hole of the hollow bronchus tube 28 with the medication tube 1 and the trachea 2, so that the medication tube 1 and the trachea 2 pass through the No. 2 through hole. Then, the elastic occlusal pad 29 is fitted onto the outer surface of the hollow bronchus tube 28 through the No. 1 through hole. The position of the elastic occlusal pad 29 is adjusted to ensure that the patient is comfortable when biting and that the catheter can be fixed.

[0061] Next, the patient gently bites the elastic bite pad 29. The bite pad, made of medical silicone, not only improves the patient's comfort but also restricts the radial movement of the medication tube 1 and trachea 2, preventing the catheter from shifting due to the patient swallowing, coughing, or head movement during the administration process, and ensuring that the medication nozzle 11 is always aligned with the lesion area.

[0062] Then, following the steps of Example 3, the miniature camera 13 is activated, the lesion is located through the display screen 27, the air pump 17 is activated to inflate the protective airbag 3 to form a closed area, the sliding movable kit 9 ​​switches the drug delivery connector 8, and the drug is delivered through the injection tube 14 or the classified drug delivery assembly. The fixing effect of the elastic bite pad 29 keeps the catheter stable and avoids drug delivery deviation or airbag seal failure due to catheter shaking.

[0063] During the administration process, the patient maintains a biting position, and the elastic biting pad 29 cushions the friction between the patient's mouth and the catheter, reducing oral discomfort. After the administration is completed, the patient is asked to loosen their bite, the elastic biting pad 29 and the hollow bronchus 28 are removed, the air pump 17 is started to release air, and the medication tube 1 and the trachea 2 are slowly pulled out to complete the entire operation.

[0064] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An esophageal medicine applying device for a digestive internal medicine patient, comprising a medicine applying tube (1), characterized in that, The outer surface of the medicine feeding pipe (1) is fixedly installed with a trachea (2) at the bottom, the medicine feeding pipe (1) and the trachea (2) are fixedly installed with a protective air bag (3) on one side, an extension pipe (4) is arranged in the protective air bag (3) on one side of the trachea (2), a pressure sensor (5) is installed on the outer surface of the extension pipe (4) on one side, and a medicine feeding mechanism is arranged on the outer surface of the medicine feeding pipe (1) for adjusting different types of medicine feeding modes; The medicine feeding mechanism comprises a medicine feeding connecting part (6), the medicine feeding connecting part (6) is fixedly installed on the outer surface of the medicine feeding pipe (1) near the protective air bag (3) above, a fixed groove (7) is formed in the outer surface of the medicine feeding connecting part (6) on one side, a plurality of medicine feeding joints (8) are arranged in the fixed groove (7), and a movable sleeve (9) is movably arranged on the outer surface of the medicine feeding connecting part (6); a medicine feeding nozzle (11) is fixedly installed on the outer surface of the movable sleeve (9) on one side. The other side of the medicine feeding pipe (1) is fixedly installed with a medicine injection pipe (14), the medicine injection pipe (14) is movably provided with a medicine injection piston rod (15) on one side, the medicine injection pipe (14) is provided with a medicine storage device (16) below, the medicine storage device (16) is fixedly installed with an air pump (17) on one side, the air pump (17) is installed with a first connecting head (18) on the output end of the upper surface, the other side of the trachea (2) is fixedly installed with a first connecting hose (19), and the first connecting hose (19) extends to the outer surface of the first connecting head (18) on one side. The medicine storage device (16) is further provided with a classified medicine feeding assembly for classified medicine feeding according to different medicine requirements.

2. The device according to claim 1, wherein The classified medicine feeding assembly comprises a plurality of medicine storage cavities (20), the medicine storage cavities (20) are arranged in parallel in the medicine storage device (16), a medicine feeding pump (21) is arranged on the inner wall top of the medicine storage cavity (20) and extends to the upper surface of the medicine storage device (16), a second connecting head (22) is arranged on the upper surface of the medicine feeding pump (21), a third connecting head (23) is arranged on the medicine injection pipe (14) on one side and near the joint position of the medicine feeding pipe (1), and a second connecting hose (24) is arranged between the third connecting head (23) and the single second connecting head (22).

3. The device according to claim 1, wherein A medicine adding pipe (25) is arranged on the front end face of the medicine storage device (16) and corresponds to the medicine storage cavity (20), an on-off switch (26) is arranged on the front end face of the medicine storage device (16) and near the medicine adding pipe (25) above, and the on-off switch (26) is used for controlling the on-off of the medicine feeding pump (21).

4. The device for applying medication on esophagus for digestive system patient according to claim 1, characterized in that, The outer surface of the medicine feeding pipe (1) and the trachea (2) is fixedly installed with a support part (12) near the medicine feeding connecting part (6) above, a miniature camera (13) is arranged on one end of the bottom of the support part (12), a display screen (27) is arranged on the front end face of the medicine storage device (16) and near the top, and the display screen (27) is used for observing the condition of the esophagus wound together with the miniature camera (13).

5. The device for applying medication on esophagus for digestive system patient according to claim 1, characterized in that, The hollow branch pipe (28) is movably installed on the outer surface of the medicine feeding pipe (1) and the trachea (2), one side of the outer surface of the hollow branch pipe (28) is sleeved with an elastic bite pad (29), and the elastic bite pad (29) is located at the mouth of the patient.

6. The device for applying medication on esophagus for digestive system patient according to claim 5, characterized in that, A first through hole is formed in the middle of one side of the elastic bite pad (29), one side of the outer surface of the hollow branch pipe (28) is located in the first through hole, a second through hole is formed in the middle of one side of the hollow branch pipe (28), and the medicine feeding pipe (1) and the trachea (2) are located in the second through hole.

7. The device for applying medication on esophagus for digestive system patient according to claim 1, characterized in that, Positioning grooves (10) are formed in the upper and lower end portions of the inner wall of the movable sleeve (9), protrusions are fixedly installed on the outer surface of the medicine feeding connecting portion (6), the positioning grooves (10) are located on the outer surface of the protrusions, and the medicine feeding connecting portion (6) and the movable sleeve (9) are mutually embedded.

8. The device for applying medication on esophagus for digestive system patient according to claim 1, characterized in that, The number of the medicine feeding connectors (8) is three, the medicine feeding connectors (8) are all in through connection with the inside of the medicine feeding pipe (1), the medicine feeding nozzle (11) is in through connection with a single medicine feeding connector (8), and the remaining medicine feeding connectors (8) are sealingly abutted on the inner wall of the movable sleeve (9).

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