Fat filtering collector

By designing a fat filtration collector that includes a filtration component, a waste liquid collection component, and a sterilization component, the problems of sterility and low efficiency in existing fat filtration technologies have been solved, achieving sterile filtration and storage of fat and improving the effectiveness and efficiency of fat transplantation.

CN223831890UActive Publication Date: 2026-01-27THE FIRST AFFILIATED HOSPITAL OF ANHUI MEDICAL UNIV +1
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Patent Information

Application Number
CN202520376838.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-01-27
Estimated Expiration
2035-03-05

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  • Figure CN223831890U_ABST
    Figure CN223831890U_ABST
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Abstract

The utility model discloses a fat filtering collector, and particularly relates to the technical field of fat filtering, the fat filtering collector sequentially comprises a filtering assembly, a waste liquid collecting assembly and a sterilizing assembly from top to bottom, the fat filtering collector is used for aseptically filtering fat, an auxiliary assembly used for improving the filtering efficiency is arranged on the outer side of the filtering assembly, and the filtering assembly comprises a filtering cylinder. A first bottom plate is fixed to the bottom of the inner wall of the filter cylinder, a filter screen for filtering fat is fixed to the inner wall of the filter cylinder, the waste liquid collecting assembly comprises a waste liquid cylinder, a top plate is fixed to the top end of the inner wall of the waste liquid cylinder, and a second bottom plate is fixed to the bottom of the inner wall of the waste liquid cylinder; and the sterilization assembly comprises a sterilization cylinder and an ultraviolet sterilization lamp fixed at the bottom end in the sterilization cylinder. The interior of the collector can be sterilized at any time in the whole fat filtering process, whole-process sterile filtering and storage of fat are achieved, the fat purity is improved, and therefore the survival rate and the effect after fat transplantation are improved.
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Description

Technical Field

[0001] This utility model relates to the field of fat filtration technology, specifically to a fat filtration collector. Background Technology

[0002] Cosmetic fat grafting involves extracting fat from one part of the body (such as the abdomen or thigh), processing it, and then injecting it into areas that require augmentation (such as the face) to improve the appearance and contour of those areas. This procedure is commonly used for facial rejuvenation, deformity correction, and scar improvement. The extracted fat needs to be filtered to remove waste fluids such as oil and blood, increasing its purity and thus improving the survival rate and effectiveness of the transplanted fat. It also reduces complications such as infection, local necrosis, and embolism.

[0003] Current methods for fat filtration include:

[0004] 1. Centrifugation: A centrifuge is used to separate fat cells from other waste liquids to obtain pure fat particles; however, because the fat is in the environment for a long time, sterility cannot be guaranteed, resulting in a low survival rate and effect after fat transplantation.

[0005] 2. Static method: The aspirated fat is left to stand for a period of time to allow the fat cells to settle naturally, removing the upper layer of oil and the lower layer of blood and other waste fluids; however, the static time required is relatively long and the filtration efficiency is low, thus affecting the efficiency of the surgery. Utility Model Content

[0006] The purpose of this invention is to provide a fat filtration and collection device that enables sterile filtration and storage of fat throughout the entire process, thereby improving fat purity and thus increasing the survival rate and effectiveness of fat transplantation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fat filter collector, which includes, from top to bottom, a filter component, a waste liquid collection component, and a sterilization component for aseptic filtering of fat. An auxiliary component is provided on the outside of the filter component to improve the filtration efficiency.

[0008] The filtration assembly includes a filter cylinder, a base plate is fixed to the bottom of the inner wall of the filter cylinder, and a filter screen for filtering fat is fixed to the inner wall of the filter cylinder.

[0009] The waste liquid collection assembly includes a waste liquid cylinder, with a top plate fixed to the top of the inner wall of the waste liquid cylinder and a bottom plate fixed to the bottom of the inner wall of the waste liquid cylinder.

[0010] The sterilization component includes a sterilization cylinder and an ultraviolet germicidal lamp fixed to the bottom of the inside of the sterilization cylinder. The ultraviolet germicidal lamp can sterilize the inside of the collector.

[0011] Preferably, the filter screen divides the interior of the filter cylinder into a fat cavity and a waste liquid cavity distributed vertically. The fat is located in the fat cavity, and the waste liquid is filtered by the filter screen and falls into the waste liquid cavity.

[0012] Preferably, the top of the filter cylinder is threadedly connected to a top cover, and an inlet pipe is fixed to the top of the top cover. The inlet pipe communicates with the inside of the filter cylinder to facilitate the extraction of fat into the collector.

[0013] Preferably, when the waste liquid cylinder is installed at the bottom of the filter cylinder, the outer wall of the top of the waste liquid cylinder is connected to the inner wall of the bottom of the filter cylinder by a thread. The top plate is located at the bottom of the bottom plate, and the bottom plate and the top plate are provided with a through hole, so that the filter cylinder and the waste liquid cylinder are connected. The top of the bottom plate is fixed with a sealing member for sealing or opening the through hole connecting the filter cylinder and the waste liquid cylinder, and the sealing member is located in the waste liquid cavity.

[0014] Preferably, the sealing component includes a sleeve fixed to the top of a base plate, and the sleeve communicates with a through hole on the base plate. A sealing plate is provided on the top of the sleeve, and the two sides of the bottom end of the sealing plate are connected to the top of the base plate by springs. A sealing gasket is embedded in the center of the bottom end of the sealing plate. When the sealing plate is at the top of the sleeve, the sealing gasket seals the sleeve under the elastic force of the spring.

[0015] Preferably, a short pipe is fixedly connected to the top of the top plate, and at least one round hole is opened on the outer wall of the short pipe; when the waste liquid cylinder is installed at the bottom of the filter cylinder, the short pipe extends through the sleeve into the waste liquid chamber, and the short pipe lifts the sealing plate. At this time, the short pipe is connected to the waste liquid chamber through the round hole, so that the waste liquid in the waste liquid chamber can flow into the waste liquid cylinder.

[0016] Preferably, when the sterilization cylinder is located at the bottom of the waste liquid cylinder, the inner wall of the top of the sterilization cylinder is connected to the outer wall of the bottom of the waste liquid cylinder by a thread, which facilitates the assembly and disassembly of the sterilization cylinder and the waste liquid cylinder.

[0017] Preferably, the top of the outer wall of the waste liquid cylinder is fixed with an outlet pipe that communicates with the inside of the waste liquid cylinder, so as to facilitate the extraction of air from the waste liquid cylinder and improve the filtration efficiency.

[0018] Preferably, the auxiliary component includes a miniature vacuum pump fixed to the outer wall of the filter cartridge. The inlet of the miniature vacuum pump is connected to an inlet pipe, and the end of the inlet pipe away from the miniature vacuum pump is connected to an outlet pipe. The outlet of the miniature vacuum pump is connected to an outlet pipe, and the end of the outlet pipe away from the miniature vacuum pump passes through the top of the outer wall of the filter cartridge and communicates with the inside of the filter cartridge.

[0019] Preferably, the inlet pipe, the air inlet pipe, and the outlet pipe are all fixed with a switch valve, and the bottom plate one, the top plate, and the bottom plate two are all made of materials that can transmit ultraviolet light, so that ultraviolet light can pass through the bottom plate one, the top plate, and the bottom plate two to sterilize the inside of the collector.

[0020] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0021] 1. This utility model can sterilize the inside of the collector at any time during the fat filtration process, realizing the sterile filtration of blood, oil and other waste liquids throughout the fat process. After filtration, the filtered fat can be sterilely stored for subsequent use, which improves the purity of the fat and thus improves the survival rate and effect of fat transplantation.

[0022] 2. During the filtration process, a miniature vacuum pump extracts air from the waste liquid cylinder and discharges it into the filter cylinder, making the pressure inside the filter cylinder greater than the pressure inside the waste liquid cylinder, thereby accelerating the fall of the waste liquid and improving filtration efficiency.

[0023] 3. After filtration, the waste liquid container can be sealed to prevent the odor of the waste liquid in the container from spreading into the environment and causing discomfort to people. Attached Figure Description

[0024] Figure 1 This is an overall structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram showing the structure of this utility model separated from the rest;

[0026] Figure 3 This is an overall sectional view of the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0028] Figure 5 This is a schematic diagram of the sterilization component of this utility model installed on top of the waste liquid collection component;

[0029] Figure 6 This is a schematic diagram of the filter assembly after the waste liquid collection assembly and the filter assembly of this utility model are separated.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Filter assembly, 11. Filter cartridge, 12. Base plate 1, 13. Filter screen, 14. Fat chamber, 15. Waste liquid chamber, 16. Sealing component, 17. Top cover, 18. Inlet pipe;

[0032] 161 Sleeve, 162 Sealing plate, 163 Spring, 164 Sealing gasket;

[0033] 2 Waste liquid collection assembly, 21 Waste liquid cylinder, 22 Top plate, 23 Bottom plate II, 24 Short pipe, 25 Round hole, 26 Outlet pipe;

[0034] 3. Sterilization components, 31. Sterilization cylinder, 32. Ultraviolet germicidal lamp;

[0035] 4 Auxiliary components, 41 Miniature vacuum pump, 42 Inlet pipe, 43 Outlet pipe. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0037] This utility model provides, for example Figure 1-4 The fat filtration collector shown includes, from top to bottom, a filtration component 1, a waste liquid collection component 2, and a sterilization component 3. Specifically:

[0038] The filter assembly 1 includes a filter cylinder 11, a base plate 12 fixed to the bottom of the inner wall of the filter cylinder 11, and a filter screen 13 for filtering fat fixed to the inner wall of the filter cylinder 11. The filter screen 13 divides the interior of the filter cylinder 11 into a fat chamber 14 and a waste liquid chamber 15 distributed vertically. The fat is located in the fat chamber 14, and the waste liquid is filtered by the filter screen 13 and falls into the waste liquid chamber 15. A top cover 17 is threaded to the top of the filter cylinder 11, and an inlet pipe 18 is fixed to the top of the top cover 17. The inlet pipe 18 communicates with the interior of the filter cylinder 11, and a switch valve is fixed on the inlet pipe 18.

[0039] The waste liquid collection assembly 2 includes a waste liquid cylinder 21. A top plate 22 is fixed to the top of the inner wall of the waste liquid cylinder 21, and a bottom plate 23 is fixed to the bottom of the inner wall of the waste liquid cylinder 21. A short pipe 24 is fixedly connected to the top of the top plate 22. At least one round hole 25 is opened on the outer wall of the short pipe 24. An outlet pipe 26 communicating with the inside of the waste liquid cylinder 21 is fixed to the top of the outer wall of the waste liquid cylinder 21, and a switch valve is fixed on the outlet pipe 26.

[0040] The waste liquid cylinder 21 can be threadedly installed at the bottom end of the filter cylinder 11. At this time, the top plate 22 is located at the bottom end of the bottom plate 12. The bottom plate 12 and the top plate 22 are provided with communicating through holes, so that the filter cylinder 11 and the waste liquid cylinder 21 are connected. A sealing member 16 for sealing or opening the through hole connecting the filter cylinder 11 and the waste liquid cylinder 21 is fixed at the top of the bottom plate 12. The sealing member 16 is located in the waste liquid chamber 15.

[0041] The sealing component 16 includes a sleeve 161 fixed to the top of the base plate 12, and the sleeve 161 communicates with the through hole on the base plate 12. The top of the sleeve 161 is provided with a sealing plate 162. The two sides of the bottom end of the sealing plate 162 are connected to the top of the base plate 12 by springs 163, and a sealing gasket 164 is embedded in the center of the bottom end of the sealing plate 162.

[0042] The sterilization component 3 includes a sterilization cylinder 31 and an ultraviolet germicidal lamp 32 fixed inside the bottom of the sterilization cylinder 31. The sterilization cylinder 31 is located at the bottom of the waste liquid cylinder 21, and the inner wall of the top of the sterilization cylinder 31 is connected to the outer wall of the bottom of the waste liquid cylinder 21 by a thread. The ultraviolet germicidal lamp 32 can be powered by installing a battery in the sterilization cylinder 31 or by connecting a power cord to a socket. The Philips ultraviolet disinfection and sterilization lamp TUV30W is selected. It is a medical ultraviolet germicidal lamp. Its ultraviolet radiation wavelength between 200nm and 300nm has a strong killing effect on microorganisms. 90% of its radiation energy is concentrated at 253.7nm, which is very close to the peak wavelength (265nm) of the sterilization efficiency curve. Therefore, when the 253.7nm radiation reaches a certain value, it can kill bacteria in a short time.

[0043] During liposuction, the waste liquid cylinder 21 is first threaded onto the bottom of the filter cylinder 11, and the sterilization cylinder 31 is threaded onto the bottom of the waste liquid cylinder 21. At this time, the short tube 24 extends through the sleeve 161 into the waste liquid chamber 15, and the short tube 24 lifts the sealing plate 162. The sealing plate 162 stretches the spring 163. At this time, the short tube 24 is connected to the waste liquid chamber 15 through the round hole 25. Then, the ultraviolet sterilization lamp 32 is turned on. The ultraviolet light emitted passes through the bottom plate 12, the top plate 22 and the bottom plate 23 to sterilize the waste liquid cylinder 21 and the filter cylinder 11 for a period of time and then is turned off to keep the inside of the collector sterile. The ultraviolet sterilization lamp 32 can also be turned on at any time during or after filtration to sterilize the inside of the collector. Therefore, the bottom plate 12, top plate 22 and bottom plate 23 need to be made of materials that can transmit ultraviolet rays, such as quartz glass and acrylic sheets, while the filter cartridge 11, top cover 17, waste liquid cartridge 21 and sterilization cartridge 31 are made of materials that cannot transmit ultraviolet rays, so as to prevent ultraviolet rays from irradiating the human body and causing harm.

[0044] Then, the fat and waste liquid (the waste liquid is blood, oil, etc. during the liposuction process) are discharged into the filter cylinder 11 through the inlet pipe 18. Under the filtration of the filter screen 13, the fat is in the fat cavity 14, and the waste liquid falls into the waste liquid cavity 15. Then the waste liquid flows into the waste liquid cylinder 21 through the round hole 25 and the short pipe 24. The sterile environment in the collector realizes the sterile filtration of fat.

[0045] After filtration, the waste liquid cartridge 21 is removed from the bottom of the filter cartridge 11, and the short tube 24 is withdrawn from the filter cartridge 11. At this time, under the elastic force of the spring 163, the sealing plate 162 is at the top of the sleeve 161 and the sleeve 161 is sealed by the sealing gasket 164. Figure 6 As shown, the filtered fat in the filter cartridge 11 can be stored aseptically for later use.

[0046] Then, the sterilization cartridge 31 can be detached from the bottom of the waste liquid cartridge 21 and threaded onto the top of the waste liquid cartridge 21, as follows: Figure 5As shown, at this time, the sterilization cylinder 31 seals the short pipe 24, and the switch valve on the outlet pipe 26 is closed to prevent the odor of the waste liquid in the waste liquid cylinder 21 from spreading into the environment and causing discomfort to personnel.

[0047] To improve fat filtration efficiency, such as Figure 1-3 As shown, an auxiliary component 4 is provided on the outside of the filter component 1. The auxiliary component 4 includes a miniature vacuum pump 41 fixed to the outer wall of the filter cartridge 11. The air inlet of the miniature vacuum pump 41 is connected to an air inlet pipe 42, and the end of the air inlet pipe 42 away from the miniature vacuum pump 41 is connected to the outlet pipe 26. A switch valve is fixed on the air inlet pipe 42. When the miniature vacuum pump 41 needs to be used, the air inlet pipe 42 and the outlet pipe 26 are quickly connected through a pipe joint. When the fat is stored aseptically, the switch valve of the air inlet pipe 42 is closed.

[0048] The outlet of the micro vacuum pump 41 is connected to an outlet pipe 43. The end of the outlet pipe 43 away from the micro vacuum pump 41 passes through the top of the outer wall of the filter cartridge 11 and communicates with the inside of the filter cartridge 11. The micro vacuum pump 41 can be a PYP520-XZ DC micro vacuum pump. The micro vacuum pump 41 can be powered by installing a battery or connecting a power cord to a socket.

[0049] When filtering, the micro vacuum pump 41 is activated. The micro vacuum pump 41 works to extract the air in the waste liquid cylinder 21 and discharge the air into the filter cylinder 11, so that the pressure in the filter cylinder 11 is greater than the pressure in the waste liquid cylinder 21. This causes the air in the filter cylinder 11 to flow into the waste liquid cylinder 21, thereby accelerating the speed at which the waste liquid falls, which is beneficial to improving the filtration efficiency.

[0050] It should be noted that this utility model needs to maintain the seal inside the collector during filtration and storage. Therefore, sealing rings need to be installed between the filter cylinder 11 and the waste liquid cylinder 21, between the filter cylinder 11 and the top cover 17, and between the waste liquid cylinder 21 and the sterilization cylinder 31. A sealing ring is also fixed on the inner wall of the sleeve 161 to seal the sleeve 161 and the short pipe 24 when the short pipe 24 passes through the sleeve 161. Other parts can also be designed with sealing structures as required.

[0051] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fat filtration collector, characterized in that: From top to bottom, it includes a filter assembly (1), a waste liquid collection assembly (2) and a sterilization assembly (3) for sterile filtration of fat. The filter assembly (1) is provided with an auxiliary assembly (4) on the outside to improve the filtration efficiency. The filter assembly (1) includes a filter cylinder (11), a bottom plate (12) is fixed to the bottom of the inner wall of the filter cylinder (11), and a filter screen (13) for filtering fat is fixed to the inner wall of the filter cylinder (11). The waste liquid collection assembly (2) includes a waste liquid cylinder (21), a top plate (22) is fixed to the top of the inner wall of the waste liquid cylinder (21), and a bottom plate (23) is fixed to the bottom of the inner wall of the waste liquid cylinder (21). The sterilization component (3) includes a sterilization cylinder (31) and an ultraviolet germicidal lamp (32) fixed inside the bottom of the sterilization cylinder (31).

2. The fat filter collector according to claim 1, characterized in that: The filter screen (13) divides the interior of the filter cylinder (11) into a fat cavity (14) and a waste liquid cavity (15) distributed vertically. The fat is in the fat cavity (14), and the waste liquid is filtered by the filter screen (13) and falls into the waste liquid cavity (15).

3. A fat filter collector according to claim 1, characterized in that: The filter cylinder (11) is threadedly connected to a top cover (17), and an inlet pipe (18) is fixed to the top of the top cover (17). The inlet pipe (18) communicates with the inside of the filter cylinder (11).

4. A fat filter collector according to claim 2, characterized in that: When the waste liquid cylinder (21) is installed at the bottom of the filter cylinder (11), the outer wall of the top of the waste liquid cylinder (21) is connected to the inner wall of the bottom of the filter cylinder (11) by a thread. The top plate (22) is located at the bottom of the bottom plate (12). The bottom plate (12) and the top plate (22) are provided with through holes that communicate with each other, so that the filter cylinder (11) and the waste liquid cylinder (21) are connected. The bottom plate (12) is fixed with a sealing element (16) for sealing or opening the through hole that connects the filter cylinder (11) and the waste liquid cylinder (21). The sealing element (16) is located in the waste liquid chamber (15).

5. A fat filtration collector according to claim 4, characterized in that: The sealing component (16) includes a sleeve (161) fixed to the top of the base plate (12), and the sleeve (161) communicates with the through hole on the base plate (12). The top of the sleeve (161) is provided with a sealing plate (162). The bottom two sides of the sealing plate (162) are connected to the top of the base plate (12) by springs (163), and a sealing gasket (164) is embedded in the center of the bottom end of the sealing plate (162). When the sealing plate (162) is on top of the sleeve (161), the sealing gasket (164) seals the sleeve (161) under the elastic force of the spring (163).

6. A fat filtration collector according to claim 4, characterized in that: The top plate (22) is fixedly connected to a short pipe (24), and the outer wall of the short pipe (24) has at least one round hole (25). When the waste liquid cylinder (21) is installed at the bottom of the filter cylinder (11), the short pipe (24) extends through the sleeve (161) into the waste liquid chamber (15), and the short pipe (24) lifts the sealing plate (162). At this time, the short pipe (24) communicates with the waste liquid chamber (15) through the round hole (25), so that the waste liquid in the waste liquid chamber (15) can flow into the waste liquid cylinder (21).

7. A fat filter collector according to claim 1, characterized in that: When the sterilization cylinder (31) is located at the bottom of the waste liquid cylinder (21), the inner wall of the top of the sterilization cylinder (31) is connected to the outer wall of the bottom of the waste liquid cylinder (21) by a thread.

8. A fat filtration collector according to claim 3, characterized in that: The top of the outer wall of the waste liquid cylinder (21) is fixed with an outlet pipe (26) that communicates with the inside of the waste liquid cylinder (21).

9. A fat filter collector according to claim 8, characterized in that: The auxiliary component (4) includes a miniature vacuum pump (41) fixed to the outer wall of the filter cartridge (11). The inlet of the miniature vacuum pump (41) is connected to an inlet pipe (42), and the end of the inlet pipe (42) away from the miniature vacuum pump (41) is connected to an outlet pipe (26). The outlet of the miniature vacuum pump (41) is connected to an outlet pipe (43), and the end of the outlet pipe (43) away from the miniature vacuum pump (41) passes through the top of the outer wall of the filter cartridge (11) and communicates with the inside of the filter cartridge (11).

10. A fat filter collector according to claim 9, characterized in that: Switch valves are fixed on the inlet pipe (18), the air inlet pipe (42) and the outlet pipe (26). The bottom plate one (12), the top plate (22) and the bottom plate two (23) are all made of materials that can transmit ultraviolet light.