Slurry cavity effusion filtering device

Abstract

The utility model relates to the technical field of medical instruments, in particular to a serous cavity effusion filtering device, which comprises a base, an outer cylinder fixedly mounted on the base, a detachable mounting cover mounted on the outer cylinder, an inner cylinder rotatably mounted in the outer cylinder, detachable filtering structures equidistantly arranged along the circumferential direction of the inner cylinder, and the detachable filtering structures are arranged on the inner cylinder when the inner cylinder rotates. The detachable filtering structure is used for filtering serous membrane cavity accumulated liquid; the pressurizing assembly comprises a driving structure and a lifting structure, and the lifting structure is arranged on the mounting cover and comprises a lifting part which is elastically arranged on the mounting cover in a sliding mode; the driving structure is mounted on a mounting plate fixedly arranged on the base and connected with the inner cylinder, and when the inner cylinder rotates, the driving structure can drive the lifting structure to act so as to drive the lifting part to ascend and descend relative to the outer cylinder; by arranging the pressurizing assembly, the filtering speed of serous membrane cavity effusion can be increased, and therefore the time needed by overall inspection is shortened.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a filtration device for serous cavity effusion. Background Technology

[0002] The thoracic cavity, abdominal cavity, and pericardial cavity in the human body are called serous cavities. Under normal circumstances, they contain a small amount of lubricating fluid. In pathological conditions, effusion can occur, which is classified into transudate and exudate based on its nature. Transudate is a non-inflammatory effusion caused by changes in osmotic pressure; exudate is an inflammatory effusion, commonly caused by bacterial infection. The purpose of serous cavity effusion detection is to differentiate the nature of the effusion for disease diagnosis and treatment.

[0003] Currently, when examining serous cavity effusions, it is usually necessary to filter the collected serous cavity effusion to remove solid substances and impurities, and retain the liquid substance for qualitative or quantitative protein experiments. However, traditional filtration methods require transferring the collected serous cavity effusion to centrifuge tubes for centrifugation. This process requires medical staff to pour the serous cavity effusion from the drainage bag into empty centrifuge tubes one by one. When the drainage volume is large, the preparation work is time-consuming and laborious, which will increase the overall testing time. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device for slurry cavity fluid to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A filtration device for serous cavity effusion includes a base, an outer cylinder fixedly mounted on the base, a detachable mounting cover mounted on the outer cylinder, and an inner cylinder rotatably mounted inside the outer cylinder. The inner cylinder has detachable filter structures equidistantly arranged along its circumference. When the inner cylinder rotates, the detachable filter structures are used to filter the serous cavity effusion.

[0007] The pressurization assembly includes a drive structure and a lifting structure. The lifting structure is disposed on the mounting cover and includes a lifting component that is elastically slidably disposed on the mounting cover. The drive structure is mounted on a mounting plate fixedly disposed on the base and is connected to the inner cylinder. When the inner cylinder rotates, the drive structure drives the lifting structure to move, thereby causing the lifting component to move up and down relative to the outer cylinder.

[0008] As a further embodiment of this utility model: the detachable filter structure includes multiple sets of detachable filter plates equidistantly arranged along the circumference of the inner cylinder, each detachable filter plate being provided with an elastic retaining plate, the elastic retaining plate cooperating with a retaining rod fixedly arranged on the inner cylinder.

[0009] As a further embodiment of this utility model: the lifting component includes a piston rod that is slidably connected to the mounting cover, with a lifting plate fixedly provided at one end of the piston rod and a piston disc fixedly provided at the other end.

[0010] As a further embodiment of this utility model: the lifting component structure further includes a fixing column disposed on the mounting cover, and multiple sets of fixing columns are provided. The lifting plate is slidably connected to the fixing columns, and a spring is slidably disposed on each set of fixing columns. One end of the spring abuts against the mounting cover, and the other end abuts against the lifting plate.

[0011] As a further embodiment of this utility model: the driving structure includes a cam rotatably mounted on the mounting plate, the cam cooperating with a pulley rotatably mounted on the lifting plate, and the cam being connected to the inner cylinder through a linkage structure.

[0012] As a further embodiment of this utility model: the linkage structure includes a transmission wheel fixedly connected to the cam on the same axis, the transmission wheel being connected to a second linkage rod rotatably mounted on the mounting plate via a belt, the second linkage rod being connected to a first linkage rod rotatably mounted on the base via a bevel gear set, and the first linkage rod being connected to the rotating shaft of the inner cylinder via a belt.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Compared with traditional methods, it can centrifuge and filter a large amount of drainage fluid at once, without having to pour it into centrifuge tubes one by one, thus shortening the time required for the entire test.

[0015] By setting up a detachable filter structure and utilizing the cooperation between the elastic clamping plate and the clamping rod, the filter plate can be freely disassembled, which brings convenience to the subsequent cleaning and replacement process.

[0016] Meanwhile, by setting up a pressurization component, during the continuous rotation of the inner cylinder in the same direction, the piston disc can be driven to pressurize the inner cylinder through the cooperation between the drive structure and the lifting structure, thereby further accelerating the filtration speed of the slurry cavity and shortening the time required for overall inspection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a fluid filtration device for a slurry cavity.

[0018] Figure 2 This is a schematic diagram of the structure inside the outer cylinder of a slurry cavity filtration device.

[0019] Figure 3 This is a schematic diagram of the pressurization component in a slurry cavity filtration device.

[0020] Figure 4 This is a schematic diagram of the connection between the inner cylinder and the disassembled filter plate in a slurry cavity filtration device.

[0021] Figure 5 This is a schematic diagram of the connection between the lifting component and the mounting cover in a slurry cavity filtration device.

[0022] In the diagram: 1. Base; 2. Outer cylinder; 201. Liquid outlet; 202. External thread; 3. Mounting plate; 4. Bevel gear set; 5. Fixed column; 6. Mounting cover; 601. Air inlet valve; 7. Cam; 8. Lifting plate; 9. Transmission wheel; 10. Pulley; 11. Inner cylinder; 1101. Filter hole; 1102. Insertion slot; 12. First linkage rod; 1201. Second linkage rod; 13. Filter plate removal; 1301. Elastic retaining plate; 1302. Lifting ring; 14. Piston disc; 1401. Piston rod; 15. Clamping rod; 16. Spring. Detailed Implementation

[0023] 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.

[0024] Furthermore, the elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] When examining serous cavity effusions, it is usually necessary to filter the collected effusion to remove solid matter and impurities, and retain the liquid substance for qualitative or quantitative protein tests. However, traditional filtration methods require transferring the collected effusion to centrifuge tubes for centrifugation. This process requires medical staff to pour the effusion from the drainage bag into empty centrifuge tubes one by one. When the volume of drainage to be tested is large, the preparation work is time-consuming and laborious, which will increase the overall testing time.

[0026] To address this issue, in medical applications, a detachable filter structure is incorporated. The interlocking action of a flexible clamping plate and a locking rod allows for easy removal of the filter plate, facilitating subsequent cleaning and replacement. Thus, after use, the serous cavity effusion filtration device described in this application can be removed, disinfected, and cleaned for future use. This design enables the filter device to be reused and can filter serous cavity effusions from different patients. The specific disinfection process can utilize commonly used methods in the medical field and is not limited in this application.

[0027] Please see Figures 1-5 In this embodiment of the utility model, the filtration device for serous cavity effusion includes a base 1, an outer cylinder 2 fixedly installed on the base 1, a detachable mounting cover 6 installed on the outer cylinder 2, and an inner cylinder 11 rotatably installed inside the outer cylinder 2. The inner cylinder 11 is provided with detachable filter structures at equal intervals along its circumference. When the inner cylinder 11 rotates, the detachable filter structures are used to filter the serous cavity effusion.

[0028] For details, please refer to Figure 1 , Figure 2 , Figure 3 The outer cylinder 2 is provided with an external thread 202 on the upper outer side. The external thread 202 engages with the internal thread formed on the inner wall of the mounting cover 6, which can achieve a sealed connection between the mounting cover 6 and the outer cylinder 2, so as to continue filtering the slurry in the membrane cavity. The mounting cover 6 is provided with an air inlet valve 601, which can only allow external air to enter the inner cylinder 11.

[0029] The detachable filter structure includes multiple sets of detachable filter plates 13 equidistantly arranged along the circumference of the inner cylinder 11. Each detachable filter plate 13 is provided with an elastic clamping plate 1301, which cooperates with a clamping rod 15 fixedly arranged on the inner cylinder 11.

[0030] Preferably, please refer to Figure 2 , Figure 4 The outer wall of the inner cylinder 11 is provided with five sets of insertion slots 1102 along its circumference. Each insertion slot 1102 is fixedly provided with a snap-fit ​​rod 15, and each insertion slot 1102 is provided with a filter hole 1101. In particular, each of the above-mentioned disassembled filter plates 13 is fixedly installed with a filter membrane. The filter membrane can filter the slurry in the membrane cavity placed in the inner cylinder 11 to achieve solid-liquid separation. The separated liquid will flow into the outer cylinder 2 and then flow out from the liquid outlet 201 on the outer cylinder 2 for medical personnel to collect for further examination and testing.

[0031] Please refer to the following for further explanation: Figure 4The aforementioned disassembled filter plate 13 is also fixedly provided with an elastic clamping plate 1301, and the upper end of the disassembled filter plate 13 is also fixedly provided with a lifting ring 1302. In use, hold the lifting ring 1302 and insert the disassembled filter plate 13 into the insertion slot 1102 until the elastic clamping plate 1301 contacts the locking rod 15. Continue to insert it downwards. At this time, the elastic clamping plate 1301 undergoes elastic deformation and finally engages with the locking rod 15, so that the disassembled filter plate 13 and the inner cylinder 11 are fixedly connected. By utilizing the cooperation between the elastic clamping plate 1301 and the locking rod 15, the disassembled filter plate 13 can be freely disassembled, which brings convenience to the subsequent cleaning and replacement process.

[0032] For further details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 The slurry cavity filtration device also includes a pressurizing assembly, which includes a driving structure and a lifting structure. The lifting structure is disposed on the mounting cover 6 and includes a lifting component that is elastically slidably disposed on the mounting cover 6. The driving structure is mounted on a mounting plate 3 that is fixedly disposed on the base 1 and is connected to the inner cylinder 11. When the inner cylinder 11 rotates, the driving structure will drive the lifting structure to move, thereby driving the lifting component to move up and down relative to the outer cylinder 2.

[0033] The lifting component includes a piston rod 1401 that is slidably connected to the mounting cover 6. One end of the piston rod 1401 is fixedly provided with a lifting plate 8, and the other end is fixedly provided with a piston disc 14.

[0034] The lifting component structure also includes a fixing column 5 disposed on the mounting cover 6. Multiple sets of fixing columns 5 are provided. The lifting plate 8 is slidably connected to the fixing column 5, and a spring 16 is slidably disposed on each set of fixing columns 5. One end of the spring 16 abuts against the mounting cover 6, and the other end abuts against the lifting plate 8.

[0035] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 The aforementioned fixed column 5 is provided with four sets (e.g., Figure 3As shown), four sets of fixed columns 5 are symmetrically distributed on both sides of the piston rod 1401. In the initial state, the spring 16 is in a compressed state. At this time, the compressed spring 16 will push the lifting plate 8 away from the mounting cover 6. At this time, the piston disc 14 is in contact with the inner cover surface of the mounting cover 6. After the mounting cover 6 is stably connected to the outer cylinder 2, the filtration speed of the slurry in the slurry cavity can be increased by pressurizing the slurry in the inner cylinder 11. In detail, in this embodiment, when the inner cylinder 11 rotates continuously in the same direction, the drive structure will drive the lifting plate 8 to move up and down along the axial direction of the outer cylinder 2. When the lifting plate 8 descends, the piston disc 14 will squeeze the slurry in the slurry cavity in the inner cylinder 11 downward to increase the pressure in the inner cylinder 11, so that the liquid can quickly enter the outer cylinder 2 through the disassembled filter plate 13 and then flow out from the outlet 201. When the lifting plate 8 rises, the air inlet valve 601 will introduce air inward to pressurize the next descent of the lifting plate 8.

[0036] For further details, please refer to the figure. Figure 1 , Figure 2 , Figure 3 , Figure 5 The drive structure includes a cam 7 rotatably mounted on the mounting plate 3, the cam 7 cooperating with a pulley 10 rotatably mounted on the lifting plate 8, and the cam 7 being connected to the inner cylinder 11 through a linkage structure;

[0037] The linkage structure includes a transmission wheel 9 that is fixedly connected to the cam 7 on the same axis. The transmission wheel 9 is connected to a second linkage rod 1201 that is rotatably mounted on the mounting plate 3 via a belt. The second linkage rod 1201 is connected to a first linkage rod 12 that is rotatably mounted on the base 1 via a bevel gear set 4. The first linkage rod 12 is connected to the rotating shaft of the inner cylinder 11 via a belt.

[0038] The bevel gear set 4 includes a first bevel gear and a second bevel gear. The first bevel gear is coaxially and fixedly connected to the first linkage rod 12, and the second bevel gear is coaxially and fixedly connected to the second linkage rod 1201. The second linkage rod 1201 is fixedly connected to the motor output shaft fixedly mounted on the mounting plate 3. It should be noted that the radius of the transmission wheel 9 is several times the radius of the second linkage rod 1201, so that after the second linkage rod 1201 rotates multiple times, the transmission wheel 9 can only drive the cam 7 to rotate one revolution.

[0039] When in use, the motor is started, and the output shaft of the motor drives the second linkage rod 1201 to rotate continuously in the same direction. Then, under the connection of the bevel gear set 4, the inner cylinder 11 is driven to rotate continuously in the same direction, thereby accelerating the filtration of the slurry in the membrane cavity. When the inner cylinder 11 rotates, the transmission wheel 9 connected to the second linkage rod 1201 will drive the cam 7 to rotate one revolution. At this time, the pulley 10 cooperating with the cam 7 will drive the lifting plate 8 to rise and fall along the axial direction of the outer cylinder 2 under the push of the cam 7 and the action of the spring 16, thereby driving the piston disc 14 to pressurize the inner cylinder 11, thereby further accelerating the filtration speed of the slurry in the membrane cavity and shortening the time required for overall inspection.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fluid filtration device for a slurry cavity, characterized in that, include: A base (1) is provided, on which an outer cylinder (2) is fixedly installed. A detachable mounting cover (6) is installed on the outer cylinder (2), and an inner cylinder (11) is rotatably installed inside the outer cylinder (2). A detachable filter structure is provided at equal intervals along the circumference of the inner cylinder (11). When the inner cylinder (11) rotates, the detachable filter structure is used to filter the effusion in the serous membrane cavity. The pressurization assembly includes a drive structure and a lifting structure. The lifting structure is disposed on the mounting cover (6) and includes a lifting member that is elastically slidably disposed on the mounting cover (6). The drive structure is mounted on the mounting plate (3) fixed on the base (1) and connected to the inner cylinder (11). When the inner cylinder (11) rotates, the drive structure will drive the lifting structure to move, thereby driving the lifting component to move up and down relative to the outer cylinder (2).

2. The slurry cavity filtration device according to claim 1, characterized in that, The detachable filter structure includes multiple sets of detachable filter plates (13) equidistantly arranged along the circumference of the inner cylinder (11). Each detachable filter plate (13) is provided with an elastic clamping plate (1301), which cooperates with a clamping rod (15) fixedly arranged on the inner cylinder (11).

3. The slurry cavity filtration device according to claim 2, characterized in that, The lifting component includes a piston rod (1401) that is slidably connected to the mounting cover (6). One end of the piston rod (1401) is fixedly provided with a lifting plate (8), and the other end is fixedly provided with a piston disc (14).

4. The slurry cavity filtration device according to claim 3, characterized in that, The lifting component structure also includes a fixing column (5) disposed on the mounting cover (6). Multiple sets of fixing columns (5) are provided. The lifting plate (8) is slidably connected to the fixing column (5). A spring (16) is slidably disposed on each set of fixing columns (5). One end of the spring (16) abuts against the mounting cover (6), and the other end abuts against the lifting plate (8).

5. The slurry cavity filtration device according to claim 3, characterized in that, The drive structure includes a cam (7) rotatably mounted on the mounting plate (3), the cam (7) cooperating with a pulley (10) rotatably mounted on the lifting plate (8), and the cam (7) being connected to the inner cylinder (11) through a linkage structure.

6. The slurry cavity filtration device according to claim 5, characterized in that, The linkage structure includes a transmission wheel (9) coaxially fixedly connected to the cam (7). The transmission wheel (9) is connected to a second linkage rod (1201) rotatably mounted on the mounting plate (3) via a belt. The second linkage rod (1201) is connected to a first linkage rod (12) rotatably mounted on the base (1) via a bevel gear set (4). The first linkage rod (12) is connected to the rotating shaft of the inner cylinder (11) via a belt.

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