Fat filtering system

Abstract

The invention discloses a fat filtering system. The fat filtering system comprises a needle cylinder; the male connector is arranged at one end of the needle cylinder; the filter cartridge is arranged in the needle cylinder, a filter space is defined by the filter cartridge, and the male connector is communicated with the filter space; the piston is movably arranged on the filter cartridge; the push rod is connected with the piston; the plurality of pieces of absorbent cotton are arranged between the filter cartridge and the inner wall of the needle cylinder at intervals; the multiple pieces of oil absorption cotton are arranged between the filter cylinder and the inner wall of the needle cylinder at intervals, and the absorbent cotton and the oil absorption cotton are arranged in a staggered mode. Fat to be filtered is sucked into the filtering space from the male connector and is filtered by the filter cartridge, and the water absorption cotton and the oil absorption cotton absorb filtered liquid. The steps of the whole filtering process are simple, liquid such as swelling liquid, tissue liquid and free oil drops in the fat to be filtered can be effectively removed, and the purification rate of the fat to be filtered is increased. And the filtering process is performed in the needle cylinder, so that closed filtering is formed, and fat pollution can be effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of fat filtration, and in particular to a fat filtration system. Background Art

[0002] Fat is the main form of energy storage in the human body. When the energy intake exceeds the body's immediate needs, the excess energy will be converted into fat and stored for use when energy is insufficient. Human fat can be used for fat filling, stem cell extraction, etc., but fat cannot be used directly after being extracted from the human body. For fat filling, it is necessary to separate the oil, water and other liquids in the fat.

[0003] In the relevant technology, the basic methods of fat filtration mainly include four categories: standing, centrifugation, filtration, and washing. The Coleman centrifugation method is currently the most widely accepted fat filtration treatment method in clinical practice. The fat after centrifugation is divided into four layers from top to bottom: free oil droplets, low-density fat, high-density fat, and liquid layer. The centrifugation method uses a density gradient to perform stratified screening of fat particles in liposuction. The equipment required for the Coleman centrifugation method is expensive and complicated to operate. There are a large number of free oil droplets in the fat particles after centrifugation. Oil droplets have always been considered to be related to inflammation after fat transplantation and highly affect the survival of fat cells.

[0004] Based on this, it is necessary to propose a fat filtration system to simplify the fat filtration steps and reduce the oil droplet content in the fat particles after filtration, which has become an important technical problem that needs to be solved urgently. Summary of the invention

[0005] The present application provides a fat filtering system, aiming to solve the problems in the prior art that the steps of fat filtering are complicated and there are many oil droplets in the fat particles after filtering.

[0006] To achieve the above-mentioned purpose, the present application proposes a fat filtration system, comprising: a syringe; a male interface, which is arranged at one end of the syringe; a filter cartridge, which is arranged in the syringe, the filter cartridge encloses a filtration space, and the male interface is connected to the filtration space; a piston, which is movably arranged in the filter cartridge; a push rod, which is connected to the piston; a plurality of absorbent cottons, which are arranged at intervals between the filter cartridge and the inner wall of the syringe; a plurality of oil-absorbing cottons, which are arranged at intervals between the filter cartridge and the inner wall of the syringe, and the water-absorbing cottons and the oil-absorbing cottons are staggered.

[0007] In some embodiments, it also includes: A main flow channel, the main flow channel is connected to a male interface; At least two spiral branch channels are provided, one end of the spiral branch channel is connected to the main channel, and the other end of the spiral branch channel is connected to the filter space. The spiral branch channel allows fat to flow into the filter space in a direction toward the inner wall of the filter cartridge.

[0008] In some embodiments, it also includes: The filter cartridge fixing cylinder is arranged between the syringe and the filter cartridge, the inner wall surface of the filter cartridge fixing cylinder fits the filter cartridge, and the outer wall surface of the filter cartridge fixing cylinder fits the inner wall surface of the syringe; A plurality of mounting grooves are arranged at intervals along the circumferential direction on the filter cartridge fixing cylinder, and the water-absorbing cotton and the oil-absorbing cotton are arranged at intervals in the mounting grooves.

[0009] In some embodiments, it also includes: An end cap is arranged at the other end of the syringe, and the push rod partially extends out of the end cap; A channel, the channel is arranged in the push rod; The outlet is arranged on the push rod adjacent to the piston, and the outlet is connected to the channel.

[0010] In some embodiments, it also includes: A plurality of mounting rods are installed in the mounting groove at intervals, and one side of the mounting rods abuts against the oil-absorbing cotton or the water-absorbing cotton; Reflux holes, water-absorbing cotton and oil-absorbing cotton are provided with reflux holes near the top.

[0011] In some embodiments, it also includes: A first sealing member, the first sealing member is disposed between the end cover and the push rod; The second sealing member is arranged between the end cover and the syringe.

[0012] In some embodiments, it also includes: The third sealing member is disposed between the filter cartridge fixing cylinder and the syringe, and the third sealing member is arranged on the syringe adjacent to the bottom of the filter cartridge fixing cylinder.

[0013] In some embodiments, it also includes: Female interface, female interface is used to connect to male interface.

[0014] In some embodiments, the female interface comprises: A first connection end, the first connection end is used to connect to the male interface; A limiting portion, wherein the first connecting end is arranged at one end of the limiting portion; The second connecting end is arranged at the other end of the limiting part.

[0015] In some embodiments, an end of the push rod away from the piston is provided with an inclined end surface.

[0016] The technical solution of the present application proposes a fat filtration system, including: a syringe, a male interface, a filter cartridge, a piston, water-absorbing cotton and oil-absorbing cotton. The male interface is arranged at one end of the syringe; the filter cartridge is arranged in the syringe, the filter cartridge is enclosed to form a filtration space, and the male interface is connected to the filtration space; the piston is movably arranged in the filter cartridge; the push rod connects the piston; a plurality of water-absorbing cottons are arranged between the filter cartridge and the inner wall of the syringe; a plurality of oil-absorbing cottons are arranged between the filter cartridge and the inner wall of the syringe, and the water-absorbing cotton and the oil-absorbing cotton are arranged in a staggered manner. The fat to be filtered is sucked into the filtration space from the male interface. After being sucked, the swelling fluid, tissue fluid, free oil droplets and other liquids in the fat to be filtered can pass through the filter cartridge and be absorbed by the water-absorbing cotton and the oil-absorbing cotton between the filter cartridge and the syringe. After the filtration is completed, the piston is pushed to move by the push rod, so that the fat particles remaining in the filter cartridge are discharged through the male interface for subsequent use. The entire filtration process is simple and can effectively remove the swelling fluid, tissue fluid, free oil droplets and other liquids in the fat to be filtered, thereby improving the purification rate of the fat to be filtered. In addition, the entire filtration process is carried out in the cavity of the syringe, forming a closed filtration, which can effectively avoid contamination of the fat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 This is a schematic structural diagram of a fat filtration system according to an embodiment of the present application; Figure 2 This is a cross-sectional view of a fat filtering system according to an embodiment of the present application; Figure 3 for Figure 2 A partial enlarged view of the middle A part; Figure 4 for Figure 2 A partial enlarged view of part B in the middle; Figure 5 This is a schematic structural diagram of a filter cartridge fixing cartridge according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0019] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0021] In addition, the descriptions of "first", "second", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0022] See also Figure 1 , Figure 2 and Figure 3 As shown, the present application proposes a fat filtration system, comprising: a syringe 1; a male interface 3, the male interface 3 is arranged at one end of the syringe 1; a filter cartridge 10, the filter cartridge 10 is arranged in the syringe 1, the filter cartridge 10 encloses a filtration space 11, and the male interface 3 is connected to the filtration space 11; a piston 6, the piston 6 is movably arranged in the filter cartridge 10; a push rod 2, the push rod 2 is connected to the piston 6; a plurality of absorbent cottons 12, the plurality of absorbent cottons 12 are arranged at intervals between the filter cartridge 10 and the inner wall of the syringe 1; a plurality of oil-absorbing cottons 17, the plurality of oil-absorbing cottons 17 are arranged at intervals between the filter cartridge 10 and the inner wall of the syringe 1, and the absorbent cottons 12 and the oil-absorbing cottons 17 are staggered.

[0023] Among them, the syringe 1 is the structural basis of the entire filtering system. A cavity is set in the syringe 1. The filter cartridge 10, the absorbent cotton 12 and the oil absorbent cotton 17 and other structures are all set in the cavity, and the entire filtering process is also carried out in the cavity. The filter cartridge 10 is the core component of the fat filtering system, which is used to separate and extract fat particles. The swelling fluid, tissue fluid, free oil droplets and other liquids in the fat can pass through the filter screen and be absorbed by the absorbent cotton 12 or the oil absorbent cotton 17, while the fat particles are left in the filter cartridge 10, realizing the filtration and purification of fat. The piston 6 is used to discharge the fat particles. The piston 6 is connected to the push rod 2 by an internal buckle or interference fit. The filtered fat particles remain in the interior of the filter cartridge 10, and the fat particles can be pushed out by the piston 6. The water-absorbent cotton 12 and the oil-absorbent cotton 17 are staggered, and the circumferential extension length of the water-absorbent cotton 12 or the oil-absorbent cotton 17 and the interval between them are very small. There are 10 or more water-absorbent cotton 12 and oil-absorbent cotton 17 so that swelling fluid, tissue fluid, free oil droplets and other liquids can be fully absorbed.

[0024] Specifically, the fat to be filtered is sucked into the filtering space 11 from the male port 3. After suction, the tumescent fluid, tissue fluid, free oil droplets and other liquids in the fat to be filtered can pass through the filter cartridge 10 and be absorbed by the absorbent cotton 12 and the oil absorbent cotton 17 located between the filter cartridge 10 and the syringe 1. After the filtration is completed, the piston 6 is pushed to move by the push rod 2, so that the fat particles remaining in the filter cartridge 10 are discharged through the male port 3 for subsequent use. The steps of the entire filtration process are simple, and the tumescent fluid, tissue fluid, free oil droplets and other liquids in the fat to be filtered can be effectively removed, thereby improving the purification rate of the fat to be filtered. In addition, the entire filtration process is carried out in the cavity of the syringe 1, forming a closed filtration, which can effectively avoid contamination of the fat.

[0025] The filter cartridge 10 is made of polyethylene terephthalate (PET) material, which is fixed to the inner wall of the syringe 1 by ultrasonic welding technology. The PET material has excellent physical and mechanical properties in a wide temperature range. During the filtering process, when the fat to be filtered squeezes it, the filter cartridge 10 will not deform to maintain its filtering effect. In addition, the polyethylene terephthalate (PET) material has good corrosion resistance and wear resistance, which is conducive to adapting to various environmental conditions.

[0026] Among them, the piston 6 is made of silicone or rubber material, both of which have good elasticity and sealing properties, avoiding leakage of fat particles when pushing the fat particles. The syringe 1, push rod 2 and other structures are made of polypropylene or polypropylene butene. Both materials have high hardness and rigidity, excellent mechanical properties, and high melting points, which can ensure the orderly advancement of the filtration process.

[0027] Among them, the absorbent cotton 12 is made of medical non-woven fabric wrapped with polymer absorbent resin particles. The main chemical components of the polymer absorbent resin are 88% low-crosslinked sodium polyacrylate, 8% to 10% water, and 0.5% to 1.0% crosslinking agent. It has the following characteristics: high water absorption: it can absorb hundreds or thousands of times its own weight of deionized water; high water absorption rate: each gram of super absorbent resin can absorb hundreds of grams of deionized water within 30 seconds; high water retention: the water is not easy to separate from the polymer resin after absorbing water under external pressure.

[0028] Among them, the oil-absorbing cotton 17 is made of melt-blown polypropylene fiber absorption cotton wrapped with non-woven fabric. Since the fiber performs well in various indicators such as density, water absorption rate and moisture regain, it has good hydrophobicity and lipophilicity, and can maintain a stable state for a long time in a complex acid-base environment without any chemical reaction. At the same time, it can lock oil droplets and prevent reverse osmosis.

[0029] See also Figure 2 and Figure 4 As shown, in some embodiments, it also includes: a main flow channel 16, the main flow channel 16 is connected to the male interface 3; at least two spiral branch channels 15, one end of the spiral branch channel 15 is connected to the main flow channel 16, the inner wall of the main flow channel 16 is smooth and the connection between it and the spiral branch channel 15 is smoothly transitioned to avoid fat damage during the flow process, the other end of the spiral branch channel 15 is connected to the filter space 11, the spiral branch channel 15 allows fat to flow into the filter space 11 in the direction toward the inner wall surface of the filter cartridge 10, the fat to be filtered flows from the male interface 3 into the main flow channel 16, and is diverted at the connection between the main flow channel 16 and the spiral branch channel 15 to avoid a large amount of fat accumulating at one point, resulting in the inability of the liquid accumulated inside the fat to be effectively discharged along the filter cartridge 10. The spiral branch channel 15 is used to change the flow direction of the fat, so that the fat flows to the inner wall surface of the filter cartridge 10, so that the liquid in the fat has a tendency to flow out of the filter cartridge 10.

[0030] In this embodiment, the spiral branch channel 15 is a curved channel, one end of which is connected to the main channel 16, and the other end is connected to the filter space 11, and the opening of the spiral branch channel 15 toward the filter space 11 is inclined relative to the horizontal plane, that is, the fat has a tendency to flow upward in addition to flowing out of the filter cartridge 10, which is used to increase the contact area between the fat and the filter cartridge 10. Preferably, the opening of the spiral branch channel 15 toward the filter space 11 is tangent to the filter cartridge 10 in the horizontal direction, so that the fat to be filtered has a tendency to rotate after entering the filter space 11, so that the tumescent fluid, tissue fluid, free oil droplets and other liquids in the fat to be filtered can be effectively absorbed by the water absorbent cotton 12 and the oil absorbent cotton 17.

[0031] See also Figure 3As shown, in some embodiments, it also includes: a filter cartridge fixing cylinder 8, the filter cartridge fixing cylinder 8 is arranged between the syringe 1 and the filter cartridge 10, the inner wall surface of the filter cartridge fixing cylinder 8 fits the filter cartridge 10, and the outer wall surface of the filter cartridge fixing cylinder 8 fits the inner wall surface of the syringe 1; during the filtering process, it is necessary to ensure that the filter cartridge 10 will not be deformed, and it is necessary to ensure that the connection between the filter cartridge 10 and the syringe 1 is not damaged, the filter cartridge fixing cylinder 8 can effectively support the filter cartridge 10, ensure that the filter cartridge 10 will not be deformed and will not shift, and improve the stability of the filtering process, multiple installation grooves, multiple installation grooves are arranged in the filter cartridge fixing cylinder 8 at intervals along the circumferential direction, and the water-absorbing cotton 12 and the oil-absorbing cotton 17 are arranged in the installation grooves one by one. The installation groove is used to accommodate the water-absorbing cotton 12 or the oil-absorbing cotton 17, and the bottom of the installation groove is preferably flush with the opening of the spiral diversion channel 15 toward the filtering space 11, ensuring that the liquid filtered from the fat can be effectively absorbed by the water-absorbing cotton 12 or the oil-absorbing cotton 17.

[0032] See also Figure 1 , Figure 2 As shown, in some embodiments, it also includes: an end cap 5, which is arranged at the other end of the syringe 1, and the push rod 2 partially extends out of the end cap 5; a channel 22, which is arranged in the push rod 2; an outlet 23, which is arranged on the push rod 2 near the piston 6, and the outlet 23 is connected to the channel 22. The end cap 5 can make the cavity inside the syringe 1 form a completely closed cavity, and provide a space for the push rod 2 to extend, and the channel 22 can be connected to the compressor. The channel 22 is connected to the filter space 11 through the outlet 23. The compressor sucks the air in the filter space 11, and the micro-negative pressure state in the filter space 11 can be maintained to suck in fat.

[0033] In this embodiment, the channel 22 is used to suck the air in the filter space 11 to press in the fat. The push rod 2 is set at the outlet 23, and the outlet 23 is preferably two or more at one end of the push rod 2 close to the end cover 5 to ensure that the slight negative pressure state in the filter space 11 can be stably maintained. Since the piston 6 is arranged in the filter cartridge 10, the piston 6 cannot provide negative pressure for the filter space 11. Only through the channel 22 and the external compressor can the negative pressure of the entire cavity in the syringe 1 be maintained to suck in fat.

[0034] See also Figure 5As shown, in some embodiments, it also includes: a plurality of mounting rods 81, which are installed in the mounting groove at intervals, and one side of the mounting rod 81 abuts against the oil-absorbing cotton 17 or the water-absorbing cotton 12; and a reflux hole 13, which is provided near the top of the water-absorbing cotton 12 and the oil-absorbing cotton 17. The installation of the mounting rod 81 allows a flow channel to be formed between the filter cartridge 10 and the oil-absorbing cotton 17 or the water-absorbing cotton 12, that is, the liquid can flow from the oil-absorbing cotton 17 or the water-absorbing cotton 12 to the filter cartridge 10, and the liquid flows from the reflux hole 13 to the other side of the mounting rod 81 and flows through the oil-absorbing cotton 17 or the water-absorbing cotton 12, and is cleaned by the liquid flowing through the oil-absorbing cotton 17 or the water-absorbing cotton 12, and the cleaned liquid can finally be discharged from the male interface 3.

[0035] In this embodiment, the flow channel can not only connect the compressor, but also connect the cleaning liquid source, clean water source, high-temperature steam source and high-temperature air source. After the fat filtration is completed and the fat is discharged, the piston 6 needs to be lifted to the uppermost end. At this time, the cleaning liquid flows out from the outlet 23 and flows from the reflux hole 13 to the other side of the mounting rod 81, and flows to the filter cartridge 10 through the oil-absorbing cotton 17 or the water-absorbing cotton 12 to clean the oil-absorbing cotton 17 or the water-absorbing cotton 12. The cleaning liquid contains ingredients such as oil cleaning agent to effectively remove oil droplets in the oil-absorbing cotton 17. After the cleaning liquid flows into the filter space 11, it can also clean the filter space 11 and the filter cartridge 10 to discharge the residual fat particles and tissue fragments in the filter space 11. After cleaning with the cleaning liquid for a period of time, clean water is introduced through the channel 22 to remove the cleaning liquid remaining in the oil-absorbing cotton 17, the water-absorbing cotton 12 and the filter space 11. The same clean water is continued until the cleaning liquid is completely removed. It can be ensured that the cleaning liquid is completely removed by detecting whether the liquid discharged from the male interface 3 contains cleaning liquid. After the cleaning liquid is completely removed, high-temperature steam is introduced through the channel 22 to sterilize the various structures in the syringe 1. After the sterilization process is completed, high-temperature air is immediately introduced to quickly dry the various structures in the syringe 1. Similarly, the humidity of the gas discharged from the male port 3 can be detected to determine whether it is completely dried. Through the above steps, repeated filtration of fat can be achieved, which improves the utilization rate of the equipment.

[0036] Among them, the steam temperature of high-temperature disinfection is not higher than 120°C, and the disinfection time is 20 minutes. Since the filter cartridge 10, piston 6, push rod 2, syringe 1, water-absorbing cotton 12 and oil-absorbing cotton 17 in this embodiment are all made of high-temperature resistant materials, the above structures will not be affected during the high-temperature disinfection process, and the above-mentioned high-temperature disinfection steps can effectively avoid fat contamination caused by repeated use of the syringe 1.

[0037] See also Figure 2 , Figure 3As shown, in some embodiments, it further includes: a first seal 7, which is disposed between the end cover 5 and the push rod 2; and a second seal 9, which is disposed between the end cover 5 and the syringe 1. The first seal 7 and the second seal 9 are both used to maintain the sealing of the cavity, ensure the normal conduct of the negative pressure suction process and prevent fat from being contaminated. Preferably, the first seal 7 and the second seal 9 are O-rings, and the end cover 5 is provided with a ring groove for accommodating the first seal 7, and the syringe 1 is provided with a ring groove for accommodating the second seal 9.

[0038] See also Figure 2 , Figure 4 As shown, in some embodiments, it further includes: a third seal 14, which is disposed between the filter cartridge fixing cylinder 8 and the syringe 1, and is arranged on the syringe 1 adjacent to the bottom of the filter cartridge fixing cylinder 8. The third seal 14 is used to maintain the sealing of the cavity, ensure the normal conduct of the negative pressure suction process and prevent fat from being contaminated. Preferably, the third seal 14 is an O-ring syringe 1, and the syringe 1 is provided with a ring groove for accommodating the third seal, and a sealant is provided between the ring groove and the O-ring.

[0039] See also Figure 1 , Figure 2 , Figure 3 As shown, in some embodiments, it further includes: a female interface 4, which is used to connect the male interface 3. The female interface 4 serves as an intermediate connection piece, and the female interface 4 can be taken out during the negative pressure suction process. During the cleaning process, the detection piece can be connected through the female interface 4 to detect the composition of the liquid or gas discharged from the male interface 3.

[0040] In some embodiments, the female interface 4 includes: a first connection end 41, the first connection end 41 is used to connect to the male interface 3; a limit portion 42, the first connection end 41 is arranged at one end of the limit portion 42; and a second connection end 43, the second connection end 43 is arranged at the other end of the limit portion 42. The second connection end 43 is used to connect to an external component, and is used to detect the composition of the liquid or gas discharged from the male interface 3. By providing the female interface 4, the leakage of residual fat particles or human tissue fluid can be effectively avoided, medical pollution can be avoided, and the safety of fat filtration can be improved.

[0041] See also Figure 1 , Figure 2 As shown, in some embodiments, the push rod 2 is provided with an inclined end surface at one end away from the piston 6. The inclined end surface is conducive to the insertion and use of pipelines such as trachea, and improves convenience. Preferably, the push rod 2 is provided with a locking bolt near the inclined end surface, which is used to lock the position of pipelines such as trachea to prevent the pipelines such as trachea from falling off the push rod 2. More preferably, the push rod 2 is provided with a gripping portion 21, and the provision of the gripping portion 21 facilitates the staff to move the push rod.

[0042] The above description is only a partial or preferred embodiment of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A fat filtration system, characterized in that: include: Syringe (1); A male interface (3), the male interface (3) being arranged at one end of the syringe (1); A filter cartridge (10), the filter cartridge (10) being arranged in the syringe (1), the filter cartridge (10) enclosing a filter space (11), the male port (3) being connected to the filter space (11); A piston (6), the piston (6) being movably disposed on the filter cartridge (10); A push rod (2), the push rod (2) being connected to the piston (6); A plurality of absorbent cottons (12), wherein the plurality of absorbent cottons (12) are arranged at intervals between the filter cartridge (10) and the inner wall of the syringe (1); A plurality of pieces of oil-absorbing cotton (17), wherein the plurality of pieces of the oil-absorbing cotton (17) are arranged at intervals between the filter cylinder (10) and the inner wall of the syringe (1), and the water-absorbing cotton (12) and the oil-absorbing cotton (17) are arranged in a staggered manner.

2. The fat filtration system according to claim 1, characterized in that: Also includes: A main flow channel (16), the main flow channel (16) being connected to the male interface (3); At least two spiral branch channels (15), one end of each spiral branch channel (15) being connected to the main channel (16), and the other end of each spiral branch channel (15) being connected to the filter space (11), wherein the spiral branch channels (15) allow fat to flow into the filter space (11) in a direction toward the inner wall surface of the filter cartridge (10).

3. The fat filtration system according to claim 1, characterized in that: Also includes: a filter cartridge fixing cylinder (8), the filter cartridge fixing cylinder (8) being arranged between the syringe (1) and the filter cartridge (10), the inner wall surface of the filter cartridge fixing cylinder (8) being in contact with the filter cartridge (10), and the outer wall surface of the filter cartridge fixing cylinder (8) being in contact with the inner wall surface of the syringe (1); A plurality of mounting grooves are provided at intervals along the circumferential direction on the filter cartridge fixing cylinder (8), and the water-absorbing cotton (12) and the oil-absorbing cotton (17) are arranged at intervals one by one in the mounting grooves.

4. The fat filtration system according to claim 3, characterized in that: Also includes: An end cover (5), the end cover (5) being arranged at the other end of the syringe (1), and the push rod (2) partially extending out of the end cover (5); A channel (22), wherein the channel (22) is arranged in the push rod (2); An outlet (23), the outlet (23) being arranged on the push rod (2) adjacent to the piston (6), and the outlet (23) being connected to the channel (22).

5. The fat filtration system according to claim 4, characterized in that: Also includes: A plurality of mounting rods (81), wherein the plurality of mounting rods (81) are installed in the mounting groove at intervals, and one side of the mounting rod (81) abuts against the oil-absorbing cotton (17) or the water-absorbing cotton (12); A reflux hole (13) is provided near the top of the water-absorbing cotton (12) and the oil-absorbing cotton (17).

6. The fat filtration system according to claim 4, characterized in that: Also includes: a first sealing member (7), the first sealing member (7) being arranged between the end cover (5) and the push rod (2); A second sealing member (9), wherein the second sealing member (9) is arranged between the end cover (5) and the syringe (1).

7. The fat filtration system according to claim 3, characterized in that: Also includes: A third sealing member (14), the third sealing member (14) being disposed between the filter cartridge fixing cylinder (8) and the syringe (1), and the third sealing member (14) being arranged on the syringe (1) adjacent to the bottom of the filter cartridge fixing cylinder (8).

8. The fat filtration system according to claim 1, characterized in that: Also includes: A female interface (4), the female interface (4) being used to connect to the male interface (3).

9. The fat filtration system according to claim 8, characterized in that: The female interface (4) comprises: A first connection end (41), the first connection end (41) being used for connecting to the male interface (3); A limiting portion (42), wherein the first connecting end (41) is arranged at one end of the limiting portion (42); A second connecting end (43), wherein the second connecting end (43) is arranged at the other end of the limiting portion (42).

10. The fat filtration system according to claim 4, characterized in that: An inclined end surface is provided at one end of the push rod (2) away from the piston (6).

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