Anti-clogging lumbar cistern drainage device

Abstract

The application discloses an anti-blocking lumbar cistern drainage device, which comprises a drainage bag, wherein an upper drainage tube, a lower drainage tube and a hanging belt are arranged on the drainage bag, an adjustable flow valve and a dredging device are sleeved on the drainage tube, the dredging device comprises a shell and a rolling wheel, a plurality of racks are arranged on the outer ring surface of the rolling wheel, the racks are in strip shapes, the middle sections of the racks are in concave arc shapes, and the side wall of the rolling wheel is provided with a pulley; the shell is through-penetrated at both ends, a through hole, which can expose the rolling wheel, is formed in the upper side of the shell, and a sliding groove, which is matched with the pulley, is formed in the inner wall of each side of the shell; and a channel, which can pass through the drainage tube, is formed between the bottom of the sliding groove and the bottom plate of the shell. The application can reciprocatingly and gently roll and press the blood clots or tissue fragments through the dredging device, the middle sections of the racks of the rolling wheel are in concave arc shapes, which can provide a cutting point and a pressing point for the gentle rolling and pressing, the left section and the right section can more firmly grasp the blood clots, the adjustable flow valve can relieve the pressure risk, and the use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary equipment technology, and more specifically, to a lumbar sac drainage device for preventing blockage. Background Technology

[0002] During routine lumbar cistern drainage, the cerebrospinal fluid (CSF) is usually clear and does not clog the drainage tube. However, in certain pathological conditions, the CSF may contain blood clots or tissue debris. For example, after traumatic brain injury, post-stroke, or subarachnoid hemorrhage, blood clots may be present in the CSF. Intracranial infections can lead to purulent discharge, inflammatory necrotic tissue, or fibrin deposition in the CSF. Brain tumors invading the ventricular system may shed tumor cells or necrotic tissue fragments. Long-term obstruction of CSF circulation can significantly increase the protein content of the CSF, forming a gel-like substance. These abnormal components not only affect normal CSF drainage but may also increase the risk of drainage tube blockage.

[0003] Blockage of the drainage tube can lead to interruption of cerebrospinal fluid drainage, which may cause fatal complications such as headache, vomiting, altered consciousness, or even brain herniation. At the same time, the stagnant abnormal cerebrospinal fluid may aggravate infection or inflammatory response.

[0004] Current technologies primarily address blockages through the following methods: manual flushing: flushing the catheter with saline solution, but improper operation may introduce infection or increase intracranial pressure; catheter replacement: requiring re-puncture, increasing patient trauma and procedural risks; pharmacological prophylaxis: such as using anticoagulants to reduce clot formation, but potentially causing bleeding side effects. Heparin-coated catheters: reduce fibrin deposition, but are ineffective against existing clots. These methods rely excessively on the experience and manual operation of healthcare personnel, making it difficult to meet the dual clinical demands for safety and timeliness. Summary of the Invention

[0005] The technical problem to be solved by this application is to provide a lumbar sac drainage device that prevents blockage, which addresses the shortcomings of the prior art. The device has a simple structure and reasonable design. It gently crushes blood clots or tissue fragments by reciprocating the drain. The middle section of the toothed rack of the crushing wheel is concave arc-shaped, providing an entry point and pressing point for gentle crushing. This allows the left and right sections to more firmly grasp the blood clots. The adjustable flow valve can alleviate pressure risks and has good performance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted in this application is: a lumbar sac drainage device for preventing blockage, including a drainage bag, an upper drainage pipe, a lower drainage pipe and a suspension belt on the drainage bag, characterized in that: an adjustable flow valve and a unclogger are sleeved on the drainage pipe; the unclogger includes a shell and a rolling wheel, the outer ring surface of the rolling wheel is provided with multiple racks, the racks are long and the middle section of the racks is concave arc-shaped, and the side wall of the rolling wheel is provided with pulleys; the two ends of the shell are open, the upper side of the shell is provided with a through hole that exposes the rolling wheel, and the inner walls of both sides of the shell are provided with grooves adapted to the pulleys, the bottom of the groove and the bottom plate of the shell form a channel through which the drainage pipe can pass.

[0007] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the length d of the concave arc is less than the width of the drainage tube.

[0008] The above-mentioned anti-clogging waist pool drainage device is characterized in that: the rack is a long, trapezoidal rack.

[0009] The above-mentioned anti-clogging waist pool drainage device is characterized in that: the chute is inclined relative to the bottom plate of the shell; the chute is smoothly connected in sequence by a rolling section, a transition connecting section and a smooth section; when the rolling wheel is located in the rolling section, the minimum distance between the rolling wheel and the bottom of the shell is not greater than 5 times the thickness of the drainage pipe; when the rolling wheel is located in the smooth section, the maximum distance between the rolling wheel and the bottom of the shell is not less than 0.8 times the diameter of the drainage pipe.

[0010] The above-mentioned anti-clogging waist pool drainage device is characterized in that: a corrugated anti-slip pad is provided on the bottom plate of the shell.

[0011] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the adjustable flow valve includes a clamp and an inlet cavity, a flow cavity and a semi-flow cavity that are opened through the clamp, and the inlet cavity, the flow cavity and the semi-flow cavity are connected through each other.

[0012] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the minimum width of the inlet cavity is not less than twice the thickness of the drainage tube; the diameter of the flow cavity is not less than the diameter of the drainage tube; and the width of the semi-flow cavity is equal to half the diameter of the drainage tube.

[0013] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the inner wall of the semi-flow cavity is provided with anti-slip particles.

[0014] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the rolling wheel is made of silicone, medical polyurethane or soft rubber.

[0015] The above-mentioned anti-clogging lumbar sac drainage device is characterized in that: the corrugated anti-slip pad is made of silicone, medical polyurethane or soft rubber.

[0016] This application has the following advantages compared with the prior art:

[0017] 1. This application has a simple structure, reasonable design, and is easy to implement and use.

[0018] 2. This application incorporates a drain cleaner, which gently and repeatedly crushes blood clots or tissue fragments into small pieces, reducing the professional requirements for the operator, minimizing the risk of human error, and improving the timeliness of clinical procedures.

[0019] 3. The drain cleaner of this application has a grinding wheel. The middle section of the rack of the grinding wheel is concave arc-shaped, which provides an entry point and pressing point for gentle grinding. This allows the left and right sections to grip the blood clots more firmly, preventing displacement during the grinding and crushing process due to the smooth surface of the blood clots. This effectively improves the crushing efficiency and enhances the drainage tube unblocking effect.

[0020] 4. This application is equipped with an adjustable flow valve. When the drain cleaner is dealing with blockages, by keeping the drainage tube in a semi-flowing state, it can prevent blood clots from slipping away and blocking other locations due to slipperiness, and also alleviate pressure risks, thus ensuring the safety and efficiency of the drain cleaning process.

[0021] In summary, this application utilizes a reciprocating, gentle crushing device to remove blood clots or tissue fragments. The middle section of the toothed rack of the crushing wheel has an inwardly concave arc shape, providing an entry and pressure point for gentle crushing. This allows the left and right sections to more firmly grasp the blood clots. The adjustable flow valve alleviates pressure risks, reduces the professional requirements for the operator, and improves the timeliness of clinical operations, resulting in good efficacy.

[0022] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the installation structure of the drainage pipe, adjustable flow valve and drain cleaner of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the drain cleaner of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the rolling wheel of this utility model.

[0027] Figure 5 This is a schematic diagram of the rack structure of this utility model.

[0028] Figure 6 This is a schematic diagram of the adjustable flow valve of this utility model.

[0029] In the diagram: 1. Drainage bag; 11. Suspension belt; 12. Lower drainage pipe; 2. Drainage pipe; 3. Adjustable flow valve; 31. Inlet cavity; 32. Flow cavity; 33. Semi-flow cavity; 4. Unblocker; 41. Shell; 42. Slide groove; 43. Roller; 431. Pulley; 432. Rack. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments thereof.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] like Figures 1 to 6 As shown, a lumbar sac drainage device for preventing blockage in this application includes a drainage bag 1, an upper drainage pipe 2, a lower drainage pipe 12 and a suspension belt 11 provided on the drainage bag 1, and an adjustable flow valve 3 and a drain cleaner 4 sleeved on the drainage pipe 2.

[0036] In actual use, the adjustable flow valve 3 is located behind the drain cleaner 4. Cerebrospinal fluid first flows through the drain cleaner 4 and then through the adjustable flow valve 3. When blood clots or tissue fragments in the cerebrospinal fluid block the upper drainage tube 2, the adjustable flow valve 3 and the drain cleaner 4 are moved to the blockage position. The adjustable flow valve 3 is used to clamp the drainage tube 2, keeping it in a semi-flowing state to prevent blood clots from slipping out of the drain cleaner 4 due to slipperiness and blocking other locations. Then, the drain cleaner 4 is used to gently crush the blood clots or tissue fragments back and forth, breaking them into fragments with a diameter smaller than the inner diameter of the drainage tube 2. This reduces the professional requirements of the operator, reduces the risk of human error, and improves the timeliness of clinical operations.

[0037] Gently roll back and forth for 15 seconds, then open the adjustable flow valve 2 to ensure the drainage tube 2 is unobstructed. If blockage persists, wait 1 minute and repeat the gentle rolling motion to avoid pressure risks. Once the tactile resistance is significantly reduced or the blood clot or tissue fragments are visibly broken, remove the draining device 4 from the blocked section and simultaneously open the adjustable flow valve 3. Record the time of blockage occurrence, treatment steps, and postoperative drainage volume changes.

[0038] Specifically, the drain cleaner 4 includes a housing 41 and a rolling wheel 43. The outer ring surface of the rolling wheel 43 is provided with multiple racks 432. The racks 432 are elongated and the middle section of the racks 432 is concave arc-shaped. The side wall of the rolling wheel 43 is provided with pulleys 431. The two ends of the housing 41 are open. The upper side of the housing 41 is provided with a through hole that exposes the rolling wheel 43. The inner walls on both sides of the housing 41 are provided with grooves 42 that are adapted to the pulleys 431. The bottom of the grooves 42 and the bottom plate of the housing 41 form a channel through which the drain pipe 2 can pass.

[0039] The rack 432 has a middle section and left and right sections on either side of the middle section. The left and right sections are straight racks, while the middle section is a concave arc-shaped rack. The highest points of the straight racks and the concave arc-shaped racks are flush. Compared to the entire rack 432 being a straight rack, the concave arc-shaped rack in the middle section enhances the biting force during crushing. Specifically, the connection points between the left and middle sections, and between the right and middle sections, provide entry and pressing points for gentle crushing. This effectively counteracts the smooth and slippery surface of the blood clot, allowing the left and right sections to grip the blood clot more firmly. This prevents the blood clot from shifting or slipping out of the crushing area due to its smooth surface, effectively improving crushing efficiency and drainage tube unblocking effect.

[0040] In this embodiment, the length d of the concave arc is less than the width of the drainage tube 2. It should be noted that the width of the drainage tube 2 refers to its width after being compressed and flattened. In actual use, the length d of the concave arc is between one-third and one-half of the width of the drainage tube 2 after compression and flattening. In one possible embodiment, the length d of the concave arc is one-third of the width of the drainage tube 2 after compression and flattening, ensuring sufficient contact between the rack and the blood clot or tissue fragments. The blood clot or tissue fragments are divided into three parts, and the crushed debris passes more easily through the drainage tube 2, while also reducing the possibility of secondary blockage and ensuring smooth drainage.

[0041] In this embodiment, the rack 432 is a long, trapezoidal rack. The rack 432 has a middle section and left and right sections on either side of the middle section. The middle section is a concave arc-shaped rack, and the left and right sections are long, trapezoidal racks. The length of the upper base of the long, trapezoidal rack is less than the length of the lower base; the upper base of the long, trapezoidal rack is flush with the highest point of the concave arc-shaped rack. This trapezoidal structure ensures even distribution of the crushing force, reducing damage to the drainage tube 2 wall caused by localized stress concentration. Furthermore, the crushing force is evenly transmitted from the lower base to the upper base. The upper base of the long, trapezoidal rack indirectly contacts the blood clot or tissue fragments. Because the area of ​​the upper base is smaller than the lower base, the force distribution is increased, improving the drainage tube's lifespan while enhancing its unblocking effect.

[0042] In this embodiment, the chute 42 is inclined relative to the bottom plate of the housing 41; the chute 42 is smoothly connected in sequence by a rolling section, a transition connecting section and a smooth section. When the rolling wheel 43 is located in the rolling section, the minimum distance between the rolling wheel 43 and the bottom of the housing 41 is not greater than 5 times the thickness of the drainage pipe 2; when the rolling wheel 43 is located in the smooth section, the maximum distance between the rolling wheel 43 and the bottom of the housing 41 is not less than 0.8 times the diameter of the drainage pipe 2.

[0043] In actual use, the chute 42 is a straight chute. When the crushing wheel 43 is in the crushing section, the minimum distance between the crushing wheel 43 and the bottom of the housing 41 transitions from twice the thickness of the drainage tube 2 to five times the thickness of the drainage tube 2. The length of the crushing section is not less than 2 cm. The crushing section provides sufficient height space for blood clots or tissue fragments to enter the rack 432, while also ensuring that the rack 432 can crush and break down the blood clots and tissue fragments. The transition section connects the crushing section and the unobstructed section, softening the gradual change in distance. After crushing and breaking down the tissue fragments, the crushing wheel 43 retracts to the unobstructed section. The unobstructed section ensures the elastic recovery of the drainage tube 2, allowing debris to be discharged smoothly and reducing the risk of secondary blockage. The length of the unobstructed section is not less than the width of the crushing wheel 43.

[0044] In this embodiment, a corrugated anti-slip pad is provided on the bottom plate of the housing 41. The corrugated anti-slip pad is used to enhance the friction between the drainage tube 2 and the bottom plate. When the crushing wheel 43 is working, it can firmly fix the position of the drainage tube 2, further increase the biting force of the crushing wheel 43, and prevent it from sliding or shifting laterally due to force, ensuring that the crushing wheel 43 accurately acts on the blockage. At the same time, the corrugated anti-slip pad provides a first bending surface for the drainage tube 2 through the corrugated concave-convex structure, and the crushing wheel 43 provides a second bending surface for the drainage tube 2 through the rack 432. The upper and lower contact surfaces of the drainage tube 2 are subjected to force in concert, so that the blockage such as blood clots is sheared and crushed in a relatively fixed space, avoiding the blockage from sliding with the pipe or insufficient crushing due to unilateral force, and improving the crushing and crushing effect.

[0045] In this embodiment, the adjustable flow valve 3 includes a clamp and an inlet cavity 31, a flow cavity 32, and a semi-flow cavity 33 that are formed through the clamp. The inlet cavity 31, the flow cavity 32, and the semi-flow cavity 33 are connected in a continuous manner. The minimum width of the inlet cavity 31 is not less than twice the thickness of the drainage tube 2; the diameter of the flow cavity 32 is not less than the diameter of the drainage tube 2; and the width of the semi-flow cavity 33 is equal to half the diameter of the drainage tube 2.

[0046] The width design of the inlet cavity 31 provides ample space for the drainage tube 2 to enter, ensuring that the drainage tube 2 can slide smoothly into the inlet cavity 31 and reduce operating resistance. After crushing and pulverizing, the drainage tube 2 returns to the flow cavity 32, which allows the drainage tube 2 to remain in a naturally relaxed state, and the lumen of the drainage tube 2 is fully open. The width of the semi-flow cavity 33 is equal to half the diameter of the drainage tube 2, which precisely squeezes the drainage tube 2 to make it flat. At this time, the lumen of the drainage tube 2 is not completely closed, but forms a narrow flow channel to maintain a semi-flow state.

[0047] In this embodiment, the inner wall of the semi-flow cavity 33 is provided with anti-slip particles to prevent the drainage tube 2 from falling out of the semi-flow cavity 33.

[0048] In this embodiment, the rolling wheel 43 is made of silicone, medical-grade polyurethane, or soft rubber. The corrugated anti-slip mat is made of silicone, medical-grade polyurethane, or soft rubber.

[0049] In actual use, the housing 41 is made of plastic, while the rolling wheel 43 and the corrugated anti-slip pad are made of silicone with a hardness of 50-70A. The soft properties can reduce the probability of damage to the drainage tube 2 during rolling.

[0050] The overall working principle is as follows: Before use, the drainage tube 2 passes through the flow chamber 32 of the adjustable flow valve 3, and then through the unblocker 4, with the rolling wheel 43 located in the unobstructed section of the unblocker 4; when a blockage occurs, the adjustable flow valve 3 and the unblocker 4 are moved to the blocked area, and the drainage tube 2 enters the semi-flow chamber 33 from the flow chamber 32 of the adjustable flow valve 3, while the rolling wheel 43 enters the rolling section from the unobstructed section of the groove 42, gently and repeatedly rolling the blood clot or tissue fragments into debris; after the tactile resistance is significantly reduced or the blood clot or tissue fragments are clearly broken by visual inspection, the rolling wheel 43 returns to the unobstructed section, and the drainage tube 2 returns to the flow chamber 32.

[0051] The above description is merely an embodiment of this application and does not constitute any limitation on this application. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of this application shall still fall within the protection scope of the technical solution of this application.

Claims

1. A clog-resistant lumbar sac drainage device, comprising a drainage bag (1), wherein the drainage bag (1) is provided with an upper drainage pipe (2), a lower drainage pipe (12) and a suspension strap (11), characterized in that: An adjustable flow valve (3) and a drain cleaner (4) are fitted onto the drainage pipe (2); The drain cleaner (4) includes a housing (41) and a rolling wheel (43). The outer ring surface of the rolling wheel (43) is provided with multiple racks (432). The racks (432) are long and the middle section of the racks (432) is concave arc-shaped. The side wall of the rolling wheel (43) is provided with pulleys (431). The two ends of the housing (41) are open, and the upper side of the housing (41) is provided with a through hole that exposes the rolling wheel (43). The inner walls on both sides of the housing (41) are provided with sliding grooves (42) that are adapted to the pulley (431). The bottom of the sliding groove (42) and the bottom plate of the housing (41) form a channel through which the drainage pipe (2) can pass.

2. The anti-clogging lumbar sac drainage device according to claim 1, characterized in that: The length d of the concave arc is less than the width of the drainage tube (2).

3. A lumbar sac drainage device for preventing blockage according to claim 1 or 2, characterized in that: The rack (432) is a long, trapezoidal rack.

4. A lumbar sac drainage device for preventing blockage according to claim 1, characterized in that: The chute (42) is inclined relative to the bottom plate of the shell (41); the chute (42) is smoothly connected in sequence by the rolling section, the transition section and the unobstructed section. When the rolling wheel (43) is located in the rolling section, the minimum distance between the rolling wheel (43) and the bottom of the shell (41) is not greater than 5 times the thickness of the drainage pipe (2); when the rolling wheel (43) is located in the unobstructed section, the maximum distance between the rolling wheel (43) and the bottom of the shell (41) is not less than 0.8 times the diameter of the drainage pipe (2).

5. A lumbar sac drainage device for preventing blockage according to claim 1, characterized in that: A corrugated anti-slip pad is provided on the bottom plate of the housing (41).

6. A lumbar sac drainage device for preventing blockage according to claim 1, characterized in that: The adjustable flow valve (3) includes a clamp and an inlet cavity (31), a flow cavity (32) and a semi-flow cavity (33) that are opened through the clamp, and the inlet cavity (31), the flow cavity (32) and the semi-flow cavity (33) are connected through each other.

7. A lumbar sac drainage device for preventing blockage according to claim 1, characterized in that: The minimum width of the inlet cavity (31) is not less than twice the thickness of the drainage tube (2); the diameter of the flow cavity (32) is not less than the diameter of the drainage tube (2); the width of the semi-flow cavity (33) is equal to half the diameter of the drainage tube (2).

8. A lumbar sac drainage device for preventing blockage according to claim 7, characterized in that: The inner wall of the semi-flow cavity (33) is provided with anti-slip particles.

9. A lumbar sac drainage device for preventing blockage according to claim 1, characterized in that: The rolling wheel (43) is made of silicone, medical polyurethane or soft rubber.

10. A lumbar sac drainage device for preventing blockage according to claim 5, characterized in that: The corrugated anti-slip mat is made of silicone, medical-grade polyurethane, or soft rubber.

Images