Anus drainage device

Abstract

The utility model discloses an anus drainage device, which relates to the technical field of medical equipment, and comprises a guide tube, the end part of the guide tube is connected with an observation tube, and the observation tube is communicated with the inner cavity of the guide tube; the negative pressure pipe is arranged on the side wall of the observation pipe, an inner cavity of the observation pipe is communicated with an inner cavity of the negative pressure pipe, and the negative pressure pipe is used for being connected with a negative pressure suction device; the expansion assembly comprises an expansion plate and a push rod, the expansion plate is connected with the outer wall of the end, away from the observation tube, of the guide tube, the push rod is slidably arranged on the outer wall of the guide tube, a transmission rod is connected between the side wall of the push rod and the end face of the expansion plate, and the transmission rod can swing relative to the expansion plate and the push rod. The technical problems that an existing anus drainage device is not provided with a detection device, medical workers are difficult to diagnose the disease condition of the anus and the intestinal tract of a patient, and targeted treatment cannot be conducted are solved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to an anal drainage device. Background Technology

[0002] In proctology and geriatrics departments, we frequently receive patients with hardened feces who are unable to defecate independently. Therefore, it is necessary to implant an anal drainage device in these patients' anuses to assist with defecation through negative pressure. However, during treatment, patients may also have other conditions, such as those who have undergone rectal anastomosis, anal reconstruction, anal sphincter reconstruction, or gastrointestinal bleeding. These patients may experience significant pain during the anal drainage device implantation process. Furthermore, during implantation, medical staff may find it difficult to examine the specific condition inside the anus and make a targeted diagnosis. Blindly implanting anal drainage devices could lead to unnecessary risks.

[0003] In conclusion, developing an anal drainage device capable of observing the specific conditions inside the anus is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an anal drainage device that solves the technical problem that existing anal drainage devices only have the function of draining feces and lack an observation device for the internal condition of the anus, thus making it impossible to provide targeted treatment for patients.

[0005] To achieve the above objectives, this utility model provides an anal drainage device, comprising:

[0006] A guide tube, with an observation tube connected to its end, the observation tube communicating with the inner cavity of the guide tube;

[0007] The negative pressure tube is located on the side wall of the observation tube, and the inner cavity of the observation tube is connected to the inner cavity of the negative pressure tube. The negative pressure tube is used to connect the negative pressure suction device.

[0008] The expansion assembly includes an expansion plate and a push rod. The expansion plate is connected to the outer wall of the end of the guide tube opposite to the observation tube. The push rod is slidably disposed on the outer wall of the guide tube. A transmission rod is connected between the side wall of the push rod and the end face of the expansion plate. The transmission rod can swing relative to the expansion plate and the push rod.

[0009] Preferably, the outer wall of the observation tube is connected to a sealing cap by a bending plate. The sealing cap and the negative pressure tube are located on opposite sides of the observation tube. The sealing cap is connected to the port of the observation tube opposite to the guide tube to seal the observation tube.

[0010] Preferably, a tension ring is provided on the outer periphery of the port of the observation tube, the diameter of which is larger than the inner diameter of the sealing cap. A limiting ring is also provided on the outer wall of the observation tube. The limiting ring and the tension ring are distributed sequentially along the direction away from the expansion assembly. The limiting ring is used to limit the depth of the observation tube extending into the sealing cap.

[0011] Preferably, the negative pressure tube and the observation tube are set at a certain angle, so that the negative pressure tube is tilted to the side away from the expansion component.

[0012] Preferably, the end face of the expansion plate is provided with a plurality of folded textures in a radial pattern, each folded texture being used to guide the expansion plate to close.

[0013] Preferably, the end of the observation tube away from the tensioning ring is provided with a docking part, the diameter of the docking part is smaller than the inner diameter of the observation tube, the inner diameter of the observation tube gradually shrinks towards the side closer to the docking part, and the guide tube is interference-fitted with the docking part.

[0014] Preferably, the bending plate and the sealing cap are made of silicone.

[0015] Preferably, the end of the negative pressure tube away from the sealing cap has a tapered structure, and the tapering direction is away from the end of the observation tube.

[0016] Compared to the aforementioned background technology, the anal drainage device provided by this utility model includes: a guide tube, with an observation tube and an expansion assembly respectively provided at both ends of the guide tube. The expansion assembly, guide tube, and observation tube are all coaxially arranged. The observation tube communicates with the inner cavity of the guide tube and is used to place an endoscope. A negative pressure tube is connected to the side wall of the observation tube, and the inner cavity of the negative pressure tube communicates with the inner cavity of the observation tube. The expansion assembly is used to extend into the patient's anus and expand inside the anus. The expansion assembly includes an expansion plate fixedly connected to the outer wall of the end of the guide tube. A push rod is sleeved on the outer periphery of the end of the guide tube. The push rod can slide along the axis of the guide rod. A transmission rod is connected between the side walls of the plate. The transmission rod can swing relative to the expansion plate and the push rod. When implanting the anal drainage device provided in this application into the patient, the expansion plate is first retracted and inserted into the patient's anus. Medical staff push the push rod to the side away from the observation tube. The push rod drives the transmission rod to swing, and the transmission rod opens the expansion plate. The expansion plate opens a certain space inside the anus. After the medical staff inserts the endoscope into the observation tube, they can easily observe the condition inside the patient's anus and carry out corresponding treatment measures. Then, the negative pressure tube is connected to the negative pressure suction device to form negative pressure in the guide tube to assist the patient in defecation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the anal drainage device provided in an embodiment of the present utility model;

[0019] Figure 2 This is a structural diagram of the expansion component in the open state provided in an embodiment of the present invention.

[0020] Among them, 1-guide tube; 2-observation tube; 21-connection part; 3-negative pressure tube; 4-expansion component; 41-expansion plate; 42-push rod; 43-transmission rod; 5-bending plate; 6-sealing cover; 7-limiting ring; 8-tensioning ring. Detailed Implementation

[0021] 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.

[0022] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] This utility model provides an anal drainage device; please refer to the appendix to the instruction manual. Figure 1The anal drainage device includes a guide tube 1, with an observation tube 2 and a dilation assembly 4 connected to its two ends respectively. The inner cavity of the observation tube 2 communicates with the inner cavity of the guide tube 1. A negative pressure tube 3 is provided on the side wall of the observation tube 2, which also communicates with the inner cavity of the observation tube 2. It should be noted that the dilation assembly 4 includes a dilation plate 41, which is connected to the outer periphery of the end of the guide tube 1 opposite to the observation tube 2. The dilation plate 41 is connected to a push rod 42 via a transmission rod 43. The push rod 42 is slidably disposed on the outer periphery of the guide tube 1, and the transmission rod 43 can expand relative to it. Plate 41 and push rod 42 swing. When expansion assembly 4 opens, push rod 42 pushes towards the end away from observation tube 2. Since the inner side of expansion plate 41 is fixedly connected to guide tube 1, during the movement of push rod 42, transmission rod 43 swings away from the axis of guide tube 1, opening expansion plate 41. Correspondingly, when expansion assembly 4 closes, transmission rod 43 swings towards the axis of guide tube 1, closing expansion plate 41. In addition, negative pressure tube 3 is connected to the side wall of observation tube 2. The inner cavity of negative pressure tube 3 is connected to the inner cavity of observation tube 2. Negative pressure tube 3 is used for... The negative pressure suction device is connected to the negative pressure tube 3, which creates negative pressure in the guide tube 1 to suction out the feces that the patient cannot expel. When the anal drainage device provided in this application is inserted into the patient's anus, the dilation component 4 is pre-contracted, and the diameter of the dilation component 4 gradually increases. The dilation component 4 is conical, making it easier to insert into the patient's anus. After the dilation component 4 is fully inserted into the patient's anus, the push rod 42 is pushed towards the end away from the observation tube 2. The end of the transmission rod 43 connected to the push rod 42 moves accordingly. At this time, the transmission rod 43 moves along with the push rod. The connection point 42 rotates around the center, and the other side of the transmission rod 43 gradually moves away from the axis of the guide rod. The expansion plate 41 connected to it opens up, creating a certain space inside the patient's anus. Medical staff place an endoscope in the observation tube 2. The endoscope can easily diagnose the patient's rectum within the opened space, determine the appropriate treatment method, and observe the state of the stool produced in the patient's anus. A certain amount of medicine or diluent is injected into the anus through the observation tube 2, and then a negative pressure suction device is connected through the negative pressure tube 3 to assist the patient in defecation.

[0024] Please continue to refer to the instruction manual appendix. Figure 1A bending plate 5 is provided on the side wall of the observation tube 2, and a sealing cap 6 is connected to the end of the bending plate 5. The port of the sealing cap 6 faces the same direction as the port of the observation tube 2. After the medical staff completes the endoscopic examination, after injecting the medicine or diluent into the anus through the observation tube 2, a negative pressure is formed in the guide tube 1 and the negative pressure tube 3 by the negative pressure suction device. It is necessary to form a closed structure of the anal drainage device. At this time, the bending plate 5 is bent so that the sealing cap 6 is connected to the port of the observation tube 2. The sealing cap 6 closes the port of the observation tube 2. Preferably, the inner diameter of the sealing cap 6 is slightly smaller than the outer diameter of the observation tube 2, so that the sealing cap 6 and the observation tube 2 are interference fit. Furthermore, a tensioning ring 8 is provided on the outer periphery of the port of the observation tube 2. When the sealing cap 6 is connected to the port of the observation tube 2, the inner wall of the sealing cap 6 further abuts against the tensioning ring 8, which enhances the fit between the sealing cap 6 and the observation tube 2 and improves the sealing performance between them. Preferably, the sealing cap 6 Both the bending plate 5 and the bending plate 6 are made of silicone, giving the bending plate 5 sufficient flexibility. While firmly connecting the sealing cap 6, the bending plate 5 can easily reverse the sealing cap 6 to the port of the observation tube 2. When the sealing cap 6 and the observation tube 2 are connected, the port of the observation tube 2 opens the sealing cap 6. The elasticity generated by the deformation of the sealing cap 6 causes its inner wall to fit tightly against the outer wall of the observation tube 2. Furthermore, the outer wall of the observation tube 2 is also provided with a limiting ring 7. The limiting ring 7 and the tensioning ring 8 are arranged in sequence along the direction close to the expansion component 4. Preferably, the distance from the limiting ring 7 to the port of the observation tube 2 is equal to the depth of the sealing cap 6. When the sealing cap 6 and the observation tube 2 are fully connected, the port of the sealing cap 6 abuts against the limiting ring 7 to limit the depth of the observation tube 2 into the sealing cap 6, preventing the observation tube 2 from extending too far into the sealing cap 6, causing the bottom surface of the sealing cap 6 to exceed its own yield strength, resulting in damage to the bottom surface of the sealing cap 6 and affecting the sealing performance of the sealing cap 6.

[0025] Furthermore, the negative pressure tube 3 and the sealing cap 6 are located on both sides of the observation tube 2. When medical staff install the sealing cap 6, there are no other obstructing structures on the movement path of the bending plate 5, making the docking process of the sealing cap 6 simpler. Preferably, the negative pressure tube 3 and the observation tube 2 are set at a certain angle, so that the negative pressure tube 3 is tilted to the side away from the expansion component 4, and the port of the negative pressure tube 3 and the port of the observation tube 2 are located on the same side of the anal drainage device. After the medical staff examines the patient's anal condition through the observation tube 2, the negative pressure tube 3 can be directly connected to the negative pressure suction device, making the treatment process simpler.

[0026] Preferably, the end face of the expansion plate 41 is provided with a plurality of folded textures, each folded texture is arranged radially on the end face of the expansion plate 41, and the folded textures all point to the axis of the guide tube 1. The folded textures are pre-set on the expansion plate 41. When the transmission rod 43 pushes the expansion plate 41 or retracts, the expansion plate 41 expands or folds along the pre-set folded textures, so that the shape of the expansion component 4 after expansion and retraction is more regular, and the space opened by the expansion plate 41 is more regular and convenient for medical staff to observe. When the expansion plate 41 is retracted, it is in a standard cone shape, which makes it convenient for medical staff to implant the expansion component 4 into the patient's anus.

[0027] Please continue to refer to the instruction manual appendix. Figure 1 A docking part 21 is provided at one end of the observation tube 2 near the expansion component 4. The inner diameter of the docking part 21 is slightly smaller than the diameter of the guide tube 1. The guide tube 1 extends into the docking part 21 and is press-fitted with the docking part 21. Furthermore, the inner diameter of the observation tube 2 gradually narrows towards the end near the expansion component 4, and the narrowed end corresponds to the inner cavity of the docking part 21. After the endoscope is inserted into the anal drainage device through the port of the observation tube 2, it abuts against the narrowed inner wall of the observation tube 2. The narrowed inner wall is used to guide the endoscope into the guide tube 1, so that the endoscope extends out from the end of the guide tube 1 where the expansion component 4 is provided, so that the endoscope can be inserted into the space opened by the expansion component 4 to observe the condition inside the patient's anus.

[0028] Preferably, the diameter of the end of the negative pressure tube 3 connected to the negative pressure suction device gradually tapers towards the end away from the observation tube 2. The tapered surface formed by the tapering makes the docking process between the negative pressure tube 3 and the negative pressure suction device easier. In one embodiment of this application, medical personnel close the anal drainage device, insert the cone-shaped dilator 4 into the patient's anus, and then push the push rod 42. The transmission rod 43 expands the dilator plate 41, creating a certain space inside the patient's anus with the dilator 4. Then, the medical personnel insert the endoscope into the observation tube 2, so that the observation end of the endoscope extends from the end of the guide tube 1 near the dilator 4 to observe the patient's anus. Internally, after determining the patient's specific condition, medical staff remove observation tube 2 and inject medication or fecal thinner into the patient's anus through observation tube 2. Then, the port of observation tube 2 is sealed with sealing cap 6, and the port of negative pressure tube 3 is connected to negative pressure suction device. The negative pressure suction device is activated to suction out the medication or diluted feces from inside the patient's anus, completing the patient's treatment. Afterward, guide tube 1 is pushed forward, and guide tube 1 pushes the inner side of expansion plate 41 to move, causing expansion component 4 to close. The anal drainage device remains inside the patient's anus, and medical staff can periodically check the condition inside the patient's anus through the anal drainage device.

[0029] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0030] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An anal drainage device, characterized in that, include: A guide tube (1) is provided, and an observation tube (2) is connected to the end of the guide tube (1). The observation tube (2) is in communication with the inner cavity of the guide tube (1). Negative pressure tube (3), the negative pressure tube (3) is located on the side wall of the observation tube (2), the inner cavity of the observation tube (2) is connected to the inner cavity of the negative pressure tube (3), and the negative pressure tube (3) is used to connect to the negative pressure suction device; An expansion assembly (4) includes an expansion plate (41) and a push rod (42). The expansion plate (41) is connected to the outer wall of the end of the guide tube (1) away from the observation tube (2). The push rod (42) is slidably disposed on the outer wall of the guide tube (1). A transmission rod (43) is connected between the side wall of the push rod (42) and the end face of the expansion plate (41). The transmission rod (43) can swing relative to the expansion plate (41) and the push rod (42).

2. The anal drainage device according to claim 1, characterized in that, The outer wall of the observation tube (2) is connected to a sealing cap (6) by a bending plate (5). The sealing cap (6) and the negative pressure tube (3) are located on opposite sides of the observation tube (2). The sealing cap (6) is connected to the port of the observation tube (2) on the side away from the guide tube (1) to seal the observation tube (2).

3. The anal drainage device according to claim 2, characterized in that, The observation tube (2) has a tension ring (8) on its outer periphery. The diameter of the tension ring (8) is larger than the inner diameter of the sealing cover (6). The outer wall of the observation tube (2) is also provided with a limiting ring (7). The limiting ring (7) and the tension ring (8) are distributed sequentially along the direction away from the expansion component (4). The limiting ring (7) is used to limit the depth of the observation tube (2) into the sealing cover (6).

4. The anal drainage device according to claim 3, characterized in that, The negative pressure tube (3) is set at a certain angle to the observation tube (2), so that the negative pressure tube (3) is tilted to the side away from the expansion component (4).

5. The anal drainage device according to claim 4, characterized in that, The expansion plate (41) has a plurality of radial folding textures on its end face, and each of the folding textures is used to guide the expansion plate (41) to close.

6. The anal drainage device according to claim 5, characterized in that, The observation tube (2) has a docking part (21) at one end away from the tensioning ring (8). The diameter of the docking part (21) is smaller than the inner diameter of the observation tube (2). The inner diameter of the observation tube (2) gradually shrinks towards the docking part (21). The guide tube (1) is interference-fitted with the docking part (21).

7. The anal drainage device according to claim 3, characterized in that, The bending plate (5) and the sealing cap (6) are specifically made of silicone.

8. The anal drainage device according to claim 4, characterized in that, The negative pressure tube (3) has a tapered structure at the end away from the sealing cover (6), and the tapering direction is away from the end of the observation tube (2).

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