Anus sealing device for enteroscopy

Abstract

The invention discloses an anus sealing device for enteroscopy, which relates to the technical field of medical instruments, and adopts the technical scheme that the anus sealing device comprises a first inflating cavity, a first connecting pipe is fixedly connected in the first inflating cavity, a first air bag pipe is fixedly connected to the rear end of the first connecting pipe, and a second connecting pipe is arranged at the front end of the first connecting pipe; according to the device, air inflation is conducted through the first air bag pipe, air conveyed from the first air bag pipe can enter the first air inflation cavity through the four exhaust grooves, so that the first air inflation cavity is driven to be inflated and expanded to be attached to the anus of a patient, then the blocking mechanism is started, and the first air inflation cavity is inflated and expanded to be attached to the anus of the patient; the blocking mechanism drives the movable baffles on the two sides to be closed inwards, so that air supply of the exhaust grooves is blocked, at the moment, all air conveyed in the first air bag pipe enters the second air bag pipe through the fixing ring and is conveyed into the second inflation cavity through the second air bag pipe, and the second inflation cavity expands after being inflated with air.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an anal sealing device for colonoscopy. Background Technology

[0002] The background technology of anal sealing devices for colonoscopy stems from concerns about anal sealing and patient comfort during colonoscopy. During colonoscopy, to reduce patient discomfort, especially for patients with anal diseases such as hemorrhoids, a device is needed to effectively reduce friction between the colonoscope and the rectal mucosa. Simultaneously, this device must ensure that gas within the intestinal tract is not released due to relaxation of the anal sphincter during the examination, thus affecting the results. Furthermore, considering the convenience of the procedure and patient comfort, the design of the sealing device must balance ease of operation and sealing effectiveness. Therefore, various anal sealing devices for colonoscopy have been developed to improve the efficiency and safety of the procedure, reduce patient discomfort, and ensure the accuracy of the examination.

[0003] A search revealed Chinese patent CN215820881U, which discloses a sealing device for colonoscopy insertion, comprising an insertion tube, a balloon sleeve, and an air guide tube. The insertion tube has an internal sealing portion for the colonoscopy tube to pass through and for sealing the tube. The balloon sleeve is nested outside the insertion tube, sealing and securing the insertion tube to the anal wall. The air guide tube passes through the balloon sleeve and is used to introduce or release gas into the rectum. Its advantages are: when inserted into the anus, it facilitates inflating the rectum while simultaneously sealing the colonoscopy during insertion and examination, preventing internal air leakage, reducing patient discomfort, and improving medical efficiency. Compared to existing technologies, this Chinese patent CN215820881U addresses the problem that during rectal examinations, the anus must be constantly pinched to prevent air leakage, which can lead to insufficient rectal inflation and affect the colonoscopy. This cumbersome operation, coupled with the inward-curving anus and difficulty in pinching, increases patient discomfort.

[0004] However, in actual use, the device prevents air leakage by inflating the air bladder to enlarge it and press it against the anus. But for some patients with loose anus, the air bladder cannot seal the anus securely after enlarging, and air leakage still occurs. Therefore, an anal sealing device for colonoscopy is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where devices prevent air leakage by inflating an airbag to block the anus. However, for some patients with loose anus, the inflated airbag still cannot securely seal the anus, resulting in air leakage. Therefore, this invention proposes an anal sealing device for colonoscopy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anal sealing device for colonoscopy includes a first inflation chamber, a first connecting tube fixedly connected inside the first inflation chamber, a first balloon tube fixedly connected to the rear end of the first connecting tube, a second connecting tube provided at the front end of the first connecting tube, a fixing ring fixedly connected to the side of the second connecting tube near the first connecting tube, the fixing ring being fixedly connected to the inner wall of the first connecting tube, four venting grooves being opened at the front end of the fixing ring, a second balloon tube fixedly connected to the front end of the second connecting tube, the side of the second balloon tube away from the second connecting tube being inserted into the second inflation chamber, and a blocking mechanism fixedly connected to the upper part of the first connecting tube.

[0008] The blocking mechanism includes a control housing fixedly connected to the upper part of the first connecting tube. A servo motor is provided on one side of the control housing, and a first gear is provided at the output end of the servo motor. The first gear is meshed with a second gear. Threaded rods are fixedly connected to both sides of the second gear. The threaded rods are rotatably connected to the control housing. A transmission rod is threadedly connected to the threaded rod, and a movable baffle is fixedly connected to the bottom of the transmission rod. During the examination, the first inflation chamber is inserted into the patient's anus, and air is supplied into the first airbag tube. The air enters the first inflation chamber through the exhaust groove, causing the first inflation chamber to expand and fit against the patient's anus. Then, the servo motor is started, which drives the threaded rod to rotate. The rotation of the threaded rod causes the threaded transmission rod to move, which in turn causes the movable baffle fixedly connected to the transmission rod to close inward. The closed movable baffle blocks the air supply from the exhaust groove, and all the air supplied in the first airbag tube is sent into the second inflation chamber through the second airbag tube, causing the second inflation chamber to expand. The expanded second inflation chamber prevents air leakage inside the patient's anus.

[0009] The above technical solution further includes:

[0010] A rubber gasket is fixedly connected to the movable baffle near the second connecting pipe. When the movable baffle is closed, the gap between it and the front end of the first connecting pipe is small, and the rubber gasket fits tightly with the second connecting pipe, preventing air leakage.

[0011] A limit rod is fixedly connected to the front end of the control housing, and transmission rods are slidably connected to both sides of the limit rod.

[0012] The first inflation chamber has a catheter opening through the middle, and the endoscope is slidably inserted into the catheter opening.

[0013] The first airbag tube is threaded with a sealing cap on the side away from the first connecting tube, and the sealing cap is tightly connected to the first airbag tube to prevent air leakage.

[0014] A fixing sticker is fixedly connected to the rear end of the first inflation chamber, and the fixing sticker has several air holes on its upper part.

[0015] A second inflation chamber is fixedly connected to the front of the first inflation chamber.

[0016] An inflation tube is provided through one side of the first inflation chamber, and the inflation tube is fixedly connected to the first inflation chamber.

[0017] The rear end of the inflation tube is threaded with a sealing cap, which is tightly connected to the inflation tube and will not leak air.

[0018] The present invention has the following beneficial effects:

[0019] 1. In this invention, when the device is used, the first inflation chamber and the second inflation chamber are first inserted into the patient's anus. Then, the first balloon tube is inflated. The gas delivered from the first balloon tube enters the first inflation chamber through the four exhaust grooves, thereby causing the first inflation chamber to inflate and fit the patient's anus. Then, the blocking mechanism is activated, which drives the movable baffles on both sides to close inward, thereby blocking the gas from being delivered through the exhaust grooves. At this time, all the gas delivered from the first balloon tube enters the second balloon tube through the fixing ring and is delivered into the second inflation chamber through the second balloon tube. After the gas is introduced into the second inflation chamber, it expands. For some patients with loose anus, the expanded first inflation chamber is difficult to effectively prevent air leakage. At this time, the second inflation chamber located inside the anus expands and seals inside the anus, effectively preventing air leakage and restricting the movement of the colonoscope.

[0020] 2. In this invention, a fixing patch is provided at the rear end of the first inflation chamber. The fixing patch can fix the device to the patient's anus, ensuring that the catheter opening will not move or deviate when the colonoscope is inserted. In addition, several ventilation holes are provided on the surface of the fixing patch, which can ensure that the patient's skin can breathe when the fixing patch is attached to the patient's skin, thus improving the comfort when the device is fixed. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an anal sealing device for colonoscopy proposed in this invention;

[0022] Figure 2 This is a schematic diagram of the connection relationship of the first inflation chamber in this invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the first air-filling chamber in this invention;

[0024] Figure 4 This is a schematic diagram of the connection relationship of the first connecting pipe in this invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the blocking mechanism in this invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the control housing in this invention.

[0027] In the diagram: 1. First inflation chamber; 2. Fixing adhesive; 3. Vent hole; 4. Catheter opening; 5. Colonoscope; 6. Inflation tube; 7. Sealing cap; 8. Second inflation chamber; 9. First balloon tube; 10. First connecting tube; 11. Second connecting tube; 12. Second balloon tube; 13. Fixing ring; 14. Exhaust groove; 15. Control housing; 16. Servo motor; 17. Movable baffle; 18. Rubber gasket; 19. Transmission rod; 20. Threaded rod; 21. First gear; 22. Second gear; 23. Limiting rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figures 1-6 As shown, it includes a first inflation chamber 1, a first connecting tube 10 fixedly connected inside the first inflation chamber 1, a first airbag tube 9 fixedly connected to the rear end of the first connecting tube 10, a second connecting tube 11 provided at the front end of the first connecting tube 10, a fixing ring 13 fixedly connected to the side of the second connecting tube 11 near the first connecting tube 10, the fixing ring 13 fixedly connected to the inner wall of the first connecting tube 10, four exhaust grooves 14 opened at the front end of the fixing ring 13, a second airbag tube 12 fixedly connected to the front end of the second connecting tube 11, the side of the second airbag tube 12 away from the second connecting tube 11 inserted into the second inflation chamber 8, and a blocking mechanism fixedly connected to the upper part of the first connecting tube 10.

[0031] The blocking mechanism includes a control housing 15 fixedly connected to the upper part of the first connecting pipe 10. A servo motor 16 is provided on one side of the control housing 15. A first gear 21 is provided at the output end of the servo motor 16. The first gear 21 is meshed with a second gear 22. Threaded rods 20 are fixedly connected to both sides of the second gear 22. The threaded rods 20 are rotatably connected to the control housing 15. A transmission rod 19 is threadedly connected to the threaded rod 20. A movable baffle 17 is fixedly connected to the bottom of the transmission rod 19. During the examination, the first inflation chamber 1 is inserted into the patient's anus, and air is supplied into the first balloon tube 9 to drive the air through the exhaust. The groove 14 enters the first inflation chamber 1, causing the first inflation chamber 1 to expand and fit against the patient's anus. Then, the servo motor 16 is started, which drives the threaded rod 20 to rotate. The rotation of the threaded rod 20 drives the threaded transmission rod 19 to move, which in turn drives the movable baffle 17, which is fixedly connected to the transmission rod 19, to close inward. The closed movable baffle 17 blocks the air from being delivered by the exhaust groove 14. All the gas delivered in the first airbag tube 9 is sent into the second inflation chamber 8 through the second airbag tube 12, causing the second inflation chamber 8 to expand. The expanded second inflation chamber 8 prevents air leakage inside the patient's anus.

[0032] A rubber gasket 18 is fixedly connected to the movable baffle 17 near the second connecting pipe 11. When the movable baffle 17 is closed, the gap between it and the front end of the first connecting pipe 10 is small, and the rubber gasket 18 fits tightly with the second connecting pipe 11, preventing air leakage. A limit rod 23 is fixedly connected to the front end of the control housing 15, and transmission rods 19 are slidably connected to both sides of the limit rod 23.

[0033] In this embodiment, when using the device, the first inflation chamber 1 and the second inflation chamber 8 are first inserted into the patient's anus. Then, the device is inflated through the first airbag tube 9. The gas delivered from the first airbag tube 9 enters the first inflation chamber 1 through the four exhaust slots 14, thereby causing the first inflation chamber 1 to inflate and expand, thus fitting the patient's anus. After the first inflation chamber 1 is inflated and fits the anus, the servo motor 16 is activated. The servo motor 16 drives the first gear 21 to rotate, which in turn drives the meshing second gear 22 to rotate. The rotation of the second gear 22 drives the threaded rods 20 fixedly connected on both sides to rotate. The rotation of the threaded rods 20 drives the threaded transmission rod 19 to move. During the movement of the transmission rod 19, the limiting rod 23 can limit the movement of the transmission rod 19, thereby ensuring the stability of the transmission rod 19. The transmission rod 19 can drive the movable baffle 17 fixedly connected at the bottom to close inward, thereby clamping and fitting the second connecting tube 11 while blocking the exhaust slots 14 from venting. Furthermore, the rubber pad 18 on one side of the movable baffle 17 ensures clamping stability while preventing air leakage. At this time, all the gas delivered in the first balloon tube 9 can enter the second balloon tube 12 through the fixing ring 13, and then be delivered into the second inflation chamber 8 through the second balloon tube 12. After gas is introduced into the second inflation chamber 8, it expands. For some patients with anal laxity, the expanded first inflation chamber 1 is difficult to effectively prevent air leakage. At this time, the second inflation chamber 8 located inside the anus expands and seals inside the anus, effectively preventing air leakage and restricting the movement of the colonoscope 5, thus improving the stability of the colonoscope 5 during insertion.

[0034] Example 2

[0035] like Figures 1-6 As shown, a catheter port 4 is provided through the middle of the first inflation chamber 1, and the endoscope 5 is slidably inserted into the inside of the catheter port 4. A sealing cap 7 is threadedly connected to the side of the first balloon tube 9 away from the first connecting tube 10. The sealing cap 7 is tightly connected to the first balloon tube 9 to prevent air leakage. A fixing sticker 2 is fixedly connected to the rear end of the first inflation chamber 1, and several ventilation holes 3 are provided on the upper part of the fixing sticker 2.

[0036] A second inflation chamber 8 is fixedly connected to the front of the first inflation chamber 1. An inflation tube 6 is provided through one side of the first inflation chamber 1, and the inflation tube 6 is fixedly connected to the first inflation chamber 1. A sealing cap 7 is threadedly connected to the rear end of the inflation tube 6, and the sealing cap 7 is tightly connected to the inflation tube 6 to prevent air leakage.

[0037] In this embodiment, a fixing patch 2 is provided at the rear end of the first inflation chamber 1. The fixing patch 2 can fix the device to the patient's anus, ensuring that the catheter port 4 will not move or shift when the colonoscope 5 is inserted. Furthermore, several ventilation holes 3 are provided on the surface of the fixing patch 2, allowing the patient's skin to breathe when the fixing patch 2 is attached, improving comfort during device fixation. Additionally, an inflation tube 6 is provided through one side of the first inflation chamber 1, allowing air to be inflated into the patient's anus, ensuring clear visualization of the intestinal cavity through the colonoscope 5, thus improving the device's effectiveness.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anal sealing device for colonoscopy, comprising a first air-filled chamber (1), characterized in that, A first connecting tube (10) is fixedly connected inside the first inflation chamber (1). A first airbag tube (9) is fixedly connected to the rear end of the first connecting tube (10). A second connecting tube (11) is provided at the front end of the first connecting tube (10). A fixing ring (13) is fixedly connected to the side of the second connecting tube (11) near the first connecting tube (10). The fixing ring (13) is fixedly connected to the inner wall of the first connecting tube (10). Four exhaust grooves (14) are opened at the front end of the fixing ring (13). A second airbag tube (12) is fixedly connected to the front end of the second connecting tube (11). The side of the second airbag tube (12) away from the second connecting tube (11) is inserted into the second inflation chamber (8). A blocking mechanism is fixedly connected to the upper part of the first connecting tube (10). The blocking mechanism includes a control housing (15) fixedly connected to the upper part of the first connecting pipe (10). A servo motor (16) is provided on one side of the control housing (15). A first gear (21) is provided at the output end of the servo motor (16). The first gear (21) is meshed with a second gear (22). Threaded rods (20) are fixedly connected to both sides of the second gear (22). The threaded rods (20) are rotatably connected to the control housing (15). A transmission rod (19) is threadedly connected to the threaded rods (20). A movable baffle (17) is fixedly connected to the bottom of the transmission rod (19). During the examination, the first inflation chamber (1) is inserted into the patient's anus to deliver air into the first balloon tube (9). Driven by the gas, the gas enters the first inflation chamber (1) through the exhaust groove (14), causing the first inflation chamber (1) to expand and fit against the patient's anus. Then, the servo motor (16) is started, and the servo motor (16) drives the threaded rod (20) to rotate. The rotation of the threaded rod (20) drives the threaded transmission rod (19) to move, which in turn drives the movable baffle (17) fixedly connected to the transmission rod (19) to close inward. The closed movable baffle (17) blocks the gas from being delivered by the exhaust groove (14). All the gas delivered in the first airbag tube (9) is sent into the second inflation chamber (8) through the second airbag tube (12), causing the second inflation chamber (8) to expand. The expanded second inflation chamber (8) blocks the leakage of air inside the patient's anus.

2. The anal sealing device for colonoscopy according to claim 1, characterized in that, A rubber gasket (18) is fixedly connected to the movable baffle (17) on the side near the second connecting pipe (11).

3. The anal sealing device for colonoscopy according to claim 1, characterized in that, The front end of the control housing (15) is fixedly connected to a limit rod (23), and transmission rods (19) are slidably connected to both sides of the limit rod (23).

4. The anal sealing device for colonoscopy according to claim 1, characterized in that, The first air-filled cavity (1) has a catheter port (4) through the middle, and the endoscope (5) is slidably inserted into the inside of the catheter port (4).

5. The anal sealing device for colonoscopy according to claim 1, characterized in that, The first air-filled cavity (1) has a catheter port (4) through the middle, and the endoscope (5) is slidably inserted into the inside of the catheter port (4).

6. The anal sealing device for colonoscopy according to claim 1, characterized in that, The first inflation chamber (1) is fixedly connected to a fixing sticker (2) at its rear end, and the fixing sticker (2) has several ventilation holes (3) on its upper part.

7. The anal sealing device for colonoscopy according to claim 1, characterized in that, A second inflation chamber (8) is fixedly connected to the front of the first inflation chamber (1).

8. The anal sealing device for colonoscopy according to claim 1, characterized in that, An inflation tube (6) is provided through one side of the first inflation chamber (1), and the inflation tube (6) is fixedly connected to the first inflation chamber (1).

9. The anal sealing device for colonoscopy according to claim 8, characterized in that, The rear end of the inflation tube (6) is threaded with a sealing cap (7).

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