Drainage tube extrusion dredger and dredging method

The design of the roller structure at the thumb and forefinger of the drain tube squeezer solves the problem of drain tube blockage, achieving efficient unblocking and crushing of blockages, reducing the risk of drain tube damage, and improving unblocking efficiency and safety.

CN121102601APending Publication Date: 2025-12-12PLASTIC SURGERY HOSPITAL CHINESE ACADEMY OF MEDICAL SCIENCES
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Patent Information

Application Number
CN202511532415.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-24
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

The existing drainage tube blockage problem is difficult to clear effectively, leading to prolonged postoperative recovery period, infection and bleeding risks. Existing devices are inefficient to operate and are prone to damage to the drainage tube.

Method used

A drainage tube squeezing and unblocking device is designed, which adopts a roller structure with the thumb and index finger connected by an elastic element to fix and roll the drainage tube, thereby increasing the impact force and crushing the blockage.

Benefits of technology

It improves the efficiency of drainage tube unblocking, reduces the force required by hands, lowers the risk of drainage tube damage, and avoids nursing risks caused by improper operation, making it practical and convenient.

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Abstract

The invention discloses a drainage tube extrusion dredger and a dredging method, and relates to the field of medical auxiliary instruments, the drainage tube extrusion dredger comprises a clamping main body, a thumb pressing plate and a rolling part, the clamping main body is divided into a thumb part and an index finger part which are connected through an elastic piece, and the index finger part is provided with an index finger sleeve; the thumb pressing plate is rotatably connected to the thumb part through the rotating hole; the rolling part comprises two rollers which are installed on the opposite sides of the two main bodies through assembling and positioning structures. When the device is used, after fingers are matched with the device, the rollers clamp the drainage tube under the action of the elastic pieces, the device is pulled to crush blockages through rolling of the rollers, and multi-angle dredging can be achieved by rotating the thumb pressing plate. The device disclosed by the invention is simple in structure, convenient to operate and capable of reducing hand burden, improving dredging efficiency and safety and reducing pipeline replacement requirements.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical auxiliary devices, in particular to a drainage tube extrusion dredging device and a dredging method. BACKGROUND

[0002] In surgical clinical diagnosis and treatment, postoperative drainage is a key auxiliary treatment method throughout the recovery period of patients. Surgeons can accurately judge the core indicators of postoperative recovery such as wound healing progress, infection or bleeding risk by observing the color, nature, consistency and flow volume changes of the drainage. However, the problem of postoperative drainage tube blockage is always a prominent pain point in clinical nursing. According to clinical practice feedback, the incidence of poor drainage or pipeline blockage is high. Such blockage not only directly weakens the effective discharge efficiency of the body fluid in the operation area, leading to the accumulation of effusion and causing local pressure rise, but also can cause a series of chain risks, such as prolonging the wound healing period, and inducing serious complications such as incision infection, bleeding and tissue necrosis.

[0003] In-depth analysis of the causes of blockage mainly focuses on three core factors: first, the mismatch between the drainage tube selection and the actual demand of the operation area, such as too small tube diameter and unreasonable side hole design, which easily leads to the retention of viscous exudate or blood clots; second, the timeliness and standardization of nursing operation are insufficient, and a normalized pipeline maintenance mechanism has not been established; third, the pipeline blockage is not removed in time, and the blood clots and cellulose-like exudates formed on the postoperative wound easily adhere to the pipe wall and gradually accumulate, eventually causing pipe cavity stenosis or even complete blockage.

[0004] To address the above problems, patients or nursing staff in clinical practice often use manual extrusion and kneading of the drainage tube to dredge. Although this method can temporarily maintain the smoothness of drainage to a certain extent, the operation effect is highly dependent on individual experience and hand strength, and has obvious limitations. Although the existing drainage extrusion device attempts to improve the pressure effect through mechanical structure, it still has not broken through the key technical bottleneck: first, the limited contact area and insufficient impact force make it difficult to effectively crush stubborn blockages; second, the device relies on the continuous force of the hand, and long-time operation can easily cause hand fatigue of the nursing staff, resulting in low efficiency; third, there is generally a lack of stable clamping positioning mechanism, and the stress imbalance during the extrusion process not only affects the dredging effect, but also may cause damage to the drainage tube due to excessive local pressure, or cause accidental falling of the pipeline due to uncontrolled pulling force, thereby causing new nursing risks. SUMMARY

[0005] In view of the deficiencies in the prior art, the present application provides a drainage tube extrusion dredging device and a dredging method.

[0006] The present application discloses a drainage tube extrusion dredging device, comprising:

[0007] The clamping body comprises a thumb part and an index finger part, the thumb part and the index finger part are elastically connected by an elastic member, the elastic member is used for providing elastic force that the thumb part and the index finger part have mutual approaching tendency, and the index finger part is provided with an index finger sleeve for positioning an index finger;

[0008] The thumb press plate is rotatably connected to the thumb part, is used for abutting by a thumb, and changes the force direction by adjusting the rotation angle;

[0009] The rolling part comprises two rollers rotatably installed on opposite sides of the thumb part and the index finger part respectively, under the action of the elastic force of the elastic member, the two rollers form a clamping structure for the drainage tube, and the two rollers can realize extrusion and dredging of the drainage tube by rolling.

[0010] As a further improvement of the application, the thumb part is provided with a thumb press plate rotation hole, the back of the thumb press plate is provided with a semispherical convex part, and the thumb press plate is rotatably installed in the thumb press plate rotation hole through the semispherical convex part;

[0011] The thumb can rotate the angle of the thumb press plate through the semispherical convex part, and extrude and dredge the drainage tube at multiple angles.

[0012] As a further improvement of the application, the thumb press plate has a concave arc for abutting by a thumb, and the thumb surface of the thumb press plate is a threaded anti-skid surface.

[0013] As a further improvement of the application, opposite sides of the thumb part and the index finger part are respectively provided with roller assembly positioning structures corresponding to the rollers;

[0014] The roller assembly positioning structure comprises a roller groove and roller clamping grooves located at both ends of the roller groove, the middle section of the roller is embedded in the roller groove, and both ends of the roller are rotatably arranged in the roller clamping grooves.

[0015] As a further improvement of the application, the roller has a structure of wide middle and narrow ends, the large-diameter end of the roller is embedded in the roller groove, and the small-diameter ends of both ends of the roller are rotatably arranged in the roller clamping grooves.

[0016] As a further improvement of the application, the long axis of the roller is perpendicular to the longitudinal axis of the clamped drainage tube; and the long axis of the roller is perpendicular to the rotation axis of the thumb press plate.

[0017] As a further improvement of the application, the elastic member is an arc-shaped elastic connecting arm, both ends of the elastic connecting arm are integrally formed or fixedly connected with the thumb part and the index finger part respectively, and the elastic force that the thumb part and the index finger part have mutual approaching tendency is provided by the elastic deformation of the arc-shaped structure of the elastic connecting arm.

[0018] As a further improvement of the present application, when the external force applied to the thumb pad is removed, the elastic connecting arm drives the thumb part and the index finger part to return to the initial state by the self elastic restoring force.

[0019] The application further discloses a dredging method of the drainage tube extrusion dredging device.

[0020] The index finger is inserted into the index finger sleeve of the drainage tube extrusion dredging device, and the thumb is pressed on the threaded anti-skid surface of the thumb pad, so that the hand is matched with the device.

[0021] The drainage tube to be dredged is arranged between the rollers of the thumb part and the index finger part of the clamping main body, so that the drainage tube is attached to the rollers.

[0022] Through mutual extrusion of the thumb and the index finger, the bilateral rollers are clamped to the drainage tube by the force generated by the deformation of the elastic element of the clamping main body, so that the device is positioned relative to the drainage tube and the drainage tube is closed.

[0023] The device is pulled downward, so that the bilateral rollers roll along the longitudinal axis of the drainage tube, the drainage tube is clamped and closed by the extrusion of the rollers, the clogging object in the drainage tube is broken and impacted, and the clogging object is removed and the drainage tube is dredged.

[0024] As a further improvement of the present application, when the angle of the thumb pad is adjusted by rotation, the long axis of the roller is kept perpendicular to the longitudinal axis of the drainage tube, and the extrusion force is accurately applied to the clogging point.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] The present application has the advantages of simple structure, convenient operation, mutual attachment of the rollers of the thumb part and the index finger part, fixed drainage tube, effectively enlarged contact area, enhanced impact force, ideal negative pressure and impact effect, efficient extrusion and crushing of the clogging object in the drainage tube, reduced hand force during operation, solution to the clogging problem of the drainage tube at different positions, saved time and physical strength, improved dredging efficiency, practicality and convenience.

[0027] The present application extrudes the drainage tube, adjusts the angle of the extrusion dredging drainage tube by rotating the thumb pad when the drainage tube is clogged, loosens the clogging position, reduces the probability of the drainage tube being clogged, avoids replacement of the whole drainage tube, and reduces the interference to normal drainage. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The present application discloses a drainage tube extrusion dredging device.

[0029] Figure 2 This is a schematic diagram of the drainage tube squeezing and unblocking device disclosed in one embodiment of the present invention from another angle;

[0030] Figure 3 This is a schematic diagram of the clamping body of the drainage tube squeezing and unblocking device disclosed in one embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the thumb press plate of a drainage tube squeezing unclogging device disclosed in one embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the thumb press plate of the drainage tube squeezing unblocking device disclosed in one embodiment of the present invention from another angle;

[0033] Figure 6 This is a schematic diagram of the roller structure of the thumb press plate of a drainage tube squeezing unclogging device disclosed in one embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram showing the usage state of the thumb press plate of the drainage tube squeezing unblocking device disclosed in one embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram showing the thumb press plate of the drainage tube squeezing unblocking device disclosed in one embodiment of the present invention from another angle.

[0036] Figure 9 This is a schematic diagram showing the thumb press of the drainage tube squeezing and unblocking device disclosed in one embodiment of the present invention at another angle.

[0037] In the picture:

[0038] 1. Clamping body; 11. Thumb part; 111. Thumb press plate rotation hole; 12. Index finger part; 121. Index finger sleeve; 13. Elastic element; 2. Thumb press plate; 21. Hemispherical protrusion; 3. Roller; 4. Roller groove; 5. Roller slot; 6. Drainage tube. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The present invention will now be described in further detail with reference to the accompanying drawings:

[0043] like Figures 1-2 As shown, a drainage tube squeezing and unblocking device according to the present invention includes: a clamping body 1, a thumb pressing plate 2, and a rolling part. The clamping body 1 includes a thumb part 11 and an index finger part 12, which are elastically connected by an elastic member 13. The elastic member 13 is used to provide an elastic force that causes the thumb part 11 and the index finger part 12 to tend to approach each other. The index finger part 12 is provided with an index finger sleeve 121 for the index finger to pass through and be positioned. The thumb pressing plate 2 is rotatably connected to the thumb part 11 and is used for the thumb to abut against it and the direction of force can be changed by adjusting its rotation angle. The rolling part includes two rollers 3 that are rotatably installed on opposite sides of the thumb part 11 and the index finger part 12. Under the elastic force of the elastic member 13, the two rollers 3 form a clamping structure for the drainage tube 6, and the two rollers 3 can squeeze and unblock the drainage tube 6 by rolling.

[0044] Specifically:

[0045] like Figures 3-5 As shown, in the above embodiment, preferably, the thumb part 11 is provided with a thumb pressing plate rotation hole 111, and the back of the thumb pressing plate 2 is provided with a hemispherical protrusion 21. The thumb pressing plate 2 is rotatably installed in the thumb pressing plate rotation hole 111 through the hemispherical protrusion 21. The thumb can rotate the angle of the thumb pressing plate 2 through the hemispherical protrusion 21 to squeeze and unclog the drainage tube from multiple angles.

[0046] In the above embodiments, preferably, roller assembly and positioning structures are respectively provided on the opposite sides of the thumb portion 11 and the index finger portion 12 corresponding to the rollers 3. In this embodiment, the roller assembly and positioning structure includes a roller groove 4 and roller slots 5 located at both ends of the roller groove 4. The middle section of the roller 3 is embedded in the roller groove 4, and the two ends of the roller 3 are rotatably disposed in the roller slots 5. In this embodiment, the roller groove 4 is an elongated groove formed by recesses at corresponding positions on the upper surface of the index finger portion 12 and the lower surface of the thumb portion 11; the roller slots 5 are U-shaped slots that protrude upward and downward on the upper surface of the index finger portion 12 and the lower surface of the thumb portion 11 corresponding to the two ends of the roller groove 4; the two ends of the roller 3 are rotatably engaged in the U-shaped slots on the corresponding sides.

[0047] In the above embodiments, preferably, the rollers 3 on both sides, while ensuring the squeezing effect, effectively reduce friction and reduce the pulling force on the drainage tube 6, which can effectively avoid adverse nursing events such as accidental dislodgement of the drainage tube 6, and improve the stability and safety of the operation.

[0048] In the above embodiments, preferably, the elastic element 13 is an arc-shaped elastic connecting arm, with its two ends integrally formed or fixedly connected to the thumb portion 11 and the index finger portion 12, respectively. The elastic deformation of its own arc-shaped structure provides an elastic force that pulls the thumb portion 11 and the index finger portion 12 closer together. In this embodiment, the elastic element 13 is an elastic connecting arm with a C-shaped arc portion. When the external force applied to the thumb press plate 2 is released, the elastic connecting arm, with its own elastic restoring force, drives the thumb portion 11 and the index finger portion 12 back to their initial state.

[0049] In the above embodiment, preferably, the first end of the elastic connecting arm extends perpendicularly to the axial direction of the index finger sleeve 121 and is tangent to the upper surface of the index finger sleeve 121 to be integrally formed with the index finger portion 12; the second end of the elastic connecting arm is connected to the first end of the elastic connecting arm through a C-shaped arc portion, and is set at a certain angle with the first end of the elastic connecting arm under the action of the C-shaped arc portion, and is integrally connected with the thumb portion 11.

[0050] In the above embodiment, preferably, the index finger portion 12 and the thumb portion 11 are respectively connected to the two ends of the elastic connecting arm with a rounded transition, so as to form a clearance portion at the end of the index finger portion 12 and the thumb portion 11 near the elastic connecting arm. This clearance portion is used for the drainage tube 6 to pass through, so that the drainage tube 6 can be clamped between the two rollers 3. In this embodiment, the clearance portion is formed on one side of the C-shaped arc portion.

[0051] like Figures 4-5As shown, in the above embodiment, preferably, the thumb press plate 2 has a concave arc for the thumb to abut against, and the thumb surface of the thumb press plate 2 is a threaded anti-slip surface. In this embodiment, the thumb press plate 2 is an approximately rectangular plate structure with a slightly downward-curved concave arc that can match the curvature formed by thumb pressing.

[0052] like Figure 6 As shown, in the above embodiment, preferably, the roller 3 has a structure that is wide in the middle and narrow at both ends. The large diameter end of the roller 3 is embedded in the roller groove 4, and the small diameter ends of the roller 3 are rotatably set in the roller slot 5.

[0053] In the above embodiments, preferably, the long axis of the roller 3 is perpendicular to the longitudinal axis of the drainage tube 6 held; the long axis of the roller 3 is perpendicular to the rotation axis of the thumb press plate 2.

[0054] like Figures 7-9 As shown, the unblocking method of the drainage tube squeezing drain cleaner provided by the present invention, which is applied to the above-mentioned drainage tube squeezing drain cleaner, specifically includes:

[0055] Insert your index finger through the drainage tube and squeeze the index finger sleeve 121 of the drain cleaner, and press your thumb on the threaded anti-slip surface of the thumb plate 2 to complete the adaptation of your hand to the device;

[0056] Place the drainage tube 6 to be unblocked between the roller 3 of the thumb part 11 and the index finger part 12 of the clamping body 1, so that the drainage tube 6 and the roller 3 are in contact.

[0057] By squeezing the thumb and forefinger together, the elastic element 13 of the clamping body 1 is deformed and the force generated is used to clamp the drainage tube 6 with the double rollers 3, thereby achieving the relative positioning of the device and the drainage tube 6 and sealing the drainage tube 6.

[0058] Pulling the device downwards causes the rollers 3 on both sides to roll along the longitudinal axis of the drainage tube 6. The rollers 3 squeeze and flatten the drainage tube 6, breaking and impacting the blockage inside the tube, thereby clearing the blockage and unblocking the pipe. In the above embodiment, preferably, when the blockage in the drainage tube 6 is in a place that is not visible to the operator, the drainage tube 6 is placed between the rollers 3 on the thumb 11 and the index finger 12. After the drainage tube 6 is in place, the impact force and negative pressure generated by the mutual squeezing of the drainage tube 6 by the thumb and index finger will impact and clear the blockage in the drainage tube 6 inside the body, thereby achieving the purpose of clearing the blockage and unblocking the drainage tube 6.

[0059] In the above embodiments, preferably, when adjusting the angle of the thumb press plate 2 by rotation, the long axis of the roller 3 is kept perpendicular to the longitudinal axis of the drainage tube 6 to ensure that the squeezing force is accurately applied to the blockage point.

[0060] This invention features a simple structure and convenient operation. It employs a design where the rollers 3 (thumb portion 11 and index finger portion 12) fit together to secure the drainage tube 6, effectively increasing the contact area, enhancing impact force, and generating ideal negative pressure and impact effects. Relying on the tight fit between the rollers 3, the device can efficiently squeeze and crush blockages inside the tube, significantly reducing hand force during operation. This helps resolve blockages at different locations in the drainage tube 6, saving time and effort, improving unblocking efficiency, and demonstrating practicality and convenience.

[0061] This invention utilizes the squeezing of the drainage tube 6. When the drainage tube 6 becomes blocked, the angle of squeezing and unblocking the drainage tube 6 can be adjusted by rotating the thumb press plate, which loosens the blockage and reduces the probability of the drainage tube 6 becoming completely blocked. This avoids the need to replace the entire drainage tube 6 and reduces interference with normal drainage.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A drain tube squeezing and unclogging device, characterized in that, include: The clamping body includes a thumb portion and an index finger portion, the thumb portion and the index finger portion being elastically connected by an elastic element, the elastic element being used to provide an elastic force that causes the thumb portion and the index finger portion to tend to move closer to each other, and the index finger portion being provided with an index finger sleeve for the index finger to pass through and be positioned. A thumb rest, which is rotatably connected to the thumb portion, is used for the thumb to press against and the direction of force can be changed by adjusting its rotation angle; The rolling part includes two rollers that are rotatably mounted on opposite sides of the thumb and index finger. Under the elastic force of the elastic member, the two rollers form a clamping structure for the drainage tube, and the two rollers can squeeze and unclog the drainage tube by rolling.

2. The drainage tube squeezing and unblocking device according to claim 1, characterized in that, The thumb portion is provided with a thumb pressing plate rotation hole, and the back of the thumb pressing plate is provided with a hemispherical protrusion. The thumb pressing plate is rotatably installed in the thumb pressing plate rotation hole through the hemispherical protrusion. The thumb can rotate the angle of the thumb press plate through the hemispherical protrusion to squeeze and unclog the drainage tube from multiple angles.

3. The drainage tube squeezing and unblocking device according to claim 1, characterized in that, The thumb press plate has a concave arc for the thumb to abut against, and the thumb surface of the thumb press plate is a threaded anti-slip surface.

4. The drainage tube squeezing and unblocking device according to claim 1, characterized in that, The thumb portion and the index finger portion are respectively provided with roller assembly and positioning structures on the opposite sides of the roller; The roller assembly and positioning structure includes a roller groove and roller slots located at both ends of the roller groove. The middle section of the roller is embedded in the roller groove, and the two ends of the roller are rotatably disposed in the roller slots.

5. The drainage tube squeezing and unblocking device according to claim 4, characterized in that, The roller has a structure that is wide in the middle and narrow at both ends. The large-diameter end of the roller is embedded in the roller groove, and the small-diameter ends of the roller are rotatably set in the roller slot.

6. The drainage tube squeezing and unblocking device according to claim 1, characterized in that, The long axis of the roller is perpendicular to the longitudinal axis of the drainage tube it holds; the long axis of the roller is perpendicular to the rotation axis of the thumb press plate.

7. The drainage tube squeezing and unblocking device according to claim 1, characterized in that, The elastic element is an arc-shaped elastic connecting arm. The two ends of the elastic connecting arm are integrally formed or fixedly connected to the thumb and the index finger, respectively. The elastic deformation of its own arc structure provides an elastic force that tends to bring the thumb and the index finger closer to each other.

8. The drainage tube squeezing and unblocking device according to claim 7, characterized in that, When the external force applied to the thumb press plate is released, the elastic connecting arm uses its own elastic restoring force to drive the thumb and index finger to return to their initial state.

9. A method for unblocking a drainage tube squeezer, applied to the drainage tube squeezer as described in any one of claims 1 to 8, characterized in that, include: Insert your index finger through the drainage tube and squeeze the index finger sleeve of the drain cleaner, then press your thumb on the threaded anti-slip surface of the thumb plate to complete the fit between your hand and the device. Place the drainage tube to be unblocked between the rollers of the thumb and index finger of the clamping body, so that the drainage tube fits against the rollers; By squeezing the thumb and forefinger together, the force generated by the deformation of the elastic element of the clamping body is used to clamp the drainage tube with the rollers on both sides, thereby achieving relative positioning of the device and the drainage tube and sealing the drainage tube. Pull the device down to make the rollers on both sides roll along the longitudinal axis of the drainage tube. The rollers squeeze and flatten the drainage tube and break and impact the blockage inside the tube, thus clearing the blockage and unblocking the pipe.

10. The unblocking method according to claim 9, characterized in that, When adjusting the angle of the thumb press by rotating it, keep the long axis of the roller perpendicular to the longitudinal axis of the drainage tube to ensure that the squeezing force is accurately applied to the blockage point.