A medical fat collection device with separation and purification functions

Abstract

This invention discloses a medical fat collection device with separation and purification functions, relating to the field of fat extraction and collection technology. It includes an absorption gun and a collection component, with a connecting tube between the absorption gun and the collection component. A negative pressure pump connects the absorption gun and the collection component. When the negative pressure pump is activated, autologous fat is drawn in through the absorption gun. The fat mixture undergoes preliminary separation within the absorption gun, separating the fat from most of the blood. The pre-separated fat is then transported from the absorption gun to the collection component through the connecting tube. Once in the collection component, the fat undergoes further separation, purifying it further while separating any remaining blood. This achieves the separation and extraction of fat. By aspirating and processing the fat, it can be transplanted to other areas, avoiding rejection problems associated with fat transplantation and improving the quality of plastic surgery and trauma repair procedures.

Description

Technical Field

[0001] This invention relates to the field of fat extraction and collection technology, specifically a medical fat collection device with separation and purification functions. Background Technology

[0002] Plastic and surgical procedures and wound repair surgery are important components of biomedical engineering. A common technique in plastic and surgical procedures and wound repair surgery is fat grafting, which involves extracting and storing autologous fat, and then transplanting the stored autologous fat to other parts of the body. Autologous fat has many advantages, such as abundant sources, convenient sourcing, no rejection, simple operation, good filling shape, no disease transmission, and no scarring after surgery. It has been widely used in clinical practice and has become a common method for tissue filling and wound repair in plastic surgery.

[0003] Existing fat collection devices typically transport and store fat directly into storage tanks after extraction. The extracted fat is generally large, which can lead to fat cell necrosis due to the large size of the fat particles, thus affecting fat viability and preventing the fat from being transplanted to other parts of the body. This, in turn, affects the quality of plastic surgery and trauma repair surgery. Summary of the Invention

[0004] The purpose of this invention is to provide a medical fat collection device with separation and purification functions to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A medical fat collection device with separation and purification functions includes an absorption gun and a collection component. A connecting pipe is provided between the absorption gun and the collection component, and the two ends of the connecting pipe are respectively connected to the absorption gun and the collection component. The absorption gun and the collection component are respectively connected to a negative pressure pump through a pipe. The absorption gun is used to perform preliminary treatment on the fat mixture, and the collection component extracts and stores the fat again.

[0007] The negative pressure pump is activated, allowing the autologous fat to be drawn in through the absorption gun. The fat mixture undergoes initial separation within the absorption gun, separating the fat from most of the blood and water. The initially separated fat is then transported from the absorption gun to the collection assembly via a connecting tube. Once in the collection assembly, the fat undergoes further separation, purifying it further while separating and isolating any residual blood and water. This achieves the desired fat separation and extraction effect, ensuring that no residual blood and water are discharged with the extracted fat, thus preventing rejection.

[0008] Preferably, the absorption gun consists of a barrel and a handle. The barrel is located at the end of the handle away from the connecting tube. The handle has an inner tube and an outer tube. The inner tube extends from the side wall of the handle, and the outer tube communicates with the connecting tube.

[0009] The fat mixture is drawn into the absorption gun through the barrel. When the fat mixture is transported to the junction of the inner tube, outer tube and the barrel, the blood and fat in the fat mixture are separated. The blood is transported to the inner tube, while the fat and a part of the blood are transported through the outer tube, thus achieving the effect of preliminary separation.

[0010] Preferably, a rotating ring is provided on the side of the inner tube near the gun barrel. The rotating ring is rotatably connected to the inner tube. The rotating ring has a plurality of rotating blades inside. A plurality of slices are provided on the side of the rotating ring away from the rotating blades. The plurality of slices are arranged around the axis of the rotating ring.

[0011] Because the negative pressure pump generates negative pressure, the barrel continuously draws gas or fat mixture from outside the gun, which increases the flow rate of the fluid inside the barrel. Furthermore, the inner tube is placed inside the outer tube, making the diameter of the inner tube smaller than that of the outer tube, thus the flow rate of the fluid inside the inner tube is greater than that inside the outer tube.

[0012] This causes most of the blood in the fat mixture absorbed inside the barrel to flow into the inner tube. As the blood or gas flows into the inner tube, it passes through a rotating ring. Because the inner wall of the rotating ring has several rotating blades, the blood and gas push the rotating ring to rotate as it flows through the ring. After the rotating ring rotates, it drives the slices on the outer wall of the rotating ring to rotate. When the slices rotate, they cut the fat, breaking large pieces of fat into smaller pieces.

[0013] Preferably, the outer tube has a plurality of flow grooves on the side near the gun barrel, and the flow grooves have a plurality of notches. The distance between the end of the flow groove near the gun barrel and the end of the rotating ring near the gun barrel is less than the distance between the end of the flow groove near the connecting pipe and the end of the rotating ring near the connecting pipe.

[0014] After separation, large fat clumps flow towards the side closer to the flow channel under negative pressure. When the large fat clumps enter the outer tube, they first encounter the slices, which cut the large fat clumps into several smaller fat clumps. Then, the smaller fat clumps flow through the flow channel to the outer tube. Because the distance between the end of the flow channel near the gun barrel and the end of the rotating ring near the gun barrel is smaller than the distance between the end of the flow channel near the connecting tube and the end of the rotating ring near the connecting tube, the flow velocity of the fat in the flow channel is accelerated, avoiding being crushed by the slices and thus ensuring the integrity of the fat cells. The fat entering the outer tube is transported from the outer tube to the connecting tube and finally to the collection assembly.

[0015] Preferably, the barrel has an expansion tube on the side near the handle, the rotating ring has a reduction tube on the side near the expansion tube, and the inner tube has several filter tubes on the side away from the rotating ring.

[0016] When the fat mixture flows through the gun barrel into the inner tube, it passes through the expansion tube, which reduces the flow velocity of the fat mixture in the expansion tube. In addition, a reduction tube is set on the side of the rotating ring near the expansion tube, which prevents large pieces of fat from entering the inner tube. As the reduction tube rotates with the rotating ring, the fat is thrown between the reduction tube and the expansion tube and finally flows into the flow channel.

[0017] The cut fat flows from the channel to the outer tube. During the flow, the flow velocity in the inner tube is greater than that in the outer tube, resulting in a lower pressure in the inner tube than in the outer tube. Consequently, the blood mixed with fat in the outer tube flows into the filter tube and then from the outer tube to the inner tube, further separating the blood and fat.

[0018] Preferably, the collecting component includes a separating chamber and a collecting chamber, the separating chamber being located above the collecting chamber, a plurality of connection ports being provided between the separating chamber and the collecting chamber, the connection ports respectively connecting the separating chamber and the collecting chamber, an output port being provided at the bottom of the collecting chamber, and the collecting chamber being annular in shape.

[0019] Preferably, a conical filter ring is provided inside the separation chamber, which divides the separation chamber into two parts, and the side of the conical filter ring near the connecting pipe is provided with a number of filter holes.

[0020] When the slide bar rotates, it drives the fat on the side of the conical filter ring closest to the collection chamber to rotate, so that the fat rotates around the axis of the separation chamber under the action of centrifugal force of the slide bar. During the rotation, the blood mixed in the fat can be filtered and separated through several filter holes under the action of centrifugal force, and the filtered fat is then transported downward through the connection port to the collection chamber.

[0021] Preferably, a cooling chamber is provided outside the collecting chamber, an expansion ring is provided on the side of the cooling chamber near the collecting chamber, a water inlet is provided at the top of the cooling chamber, and a water outlet is provided on the side wall of the cooling chamber.

[0022] A cold water chamber is provided outside the cooling chamber, and a water pump is provided in the cold water chamber. The water pump is connected to the inlet through a pipe, and the outlet is connected to the cold water chamber through a pipe.

[0023] The controller starts the water pump, which draws ice water from the cold water chamber and delivers it through pipes to the inlet. The ice water then flows into the cooling chamber, filling it and cooling and insulating the collection chamber. This keeps the fat in a suitable storage temperature environment. Because the cooling chamber has an expansion ring on the side near the collection chamber, the wall thickness on that side is thinner, allowing the low temperature of the ice water to penetrate the wall more quickly and reach the collection chamber, thus better storing the fat at low temperatures.

[0024] Because the collection chamber is annular and has an expansion ring, the ice water can transfer low temperature from the periphery to the center and from the center to the periphery, making the transfer of low temperature more efficient and further improving the quality of fat storage. When fat needs to be extracted for use, the fat is discharged out through the outlet.

[0025] Preferably, a sliding sleeve is provided inside the conical filter ring, the sliding sleeve is connected to the conical filter ring through a support frame, a sliding rod is provided in the sliding sleeve, a conical block is provided at the top of the sliding rod, and a blocking plate is provided at the bottom of the sliding rod.

[0026] Preferably, the top of the conical block is provided with a rotating cone, a micro motor is provided inside the conical block, the drive shaft of the micro motor is connected to the rotating cone, a plurality of flexible plates are provided on the outer wall of the conical block, one end of the flexible plate is connected to the outer wall of the rotating cone, the other end of the flexible plate is connected to the conical block, the flexible plate is rotatably connected to the conical block, and a plurality of conveying grooves are provided on the blocking plate.

[0027] When the micro motor drives the rotating cone to rotate clockwise, the rotating cone causes one end of the flexible plate to deflect, so that several flexible plates and cone blocks cooperate with each other to form an impeller in a clockwise direction;

[0028] When the micro motor drives the rotating cone to reverse, the rotating cone causes one end of the flexible plate to deflect in the opposite direction, so that several flexible plates and cone blocks cooperate with each other to form an impeller in a counterclockwise direction.

[0029] When the conical block is a counterclockwise impeller, the fat mixture delivered to the separation chamber by the connecting pipe will impact the conical block and the flexible plate, causing the conical block and the flexible plate to drive the slide bar and the blocking plate to rotate, which generates centrifugal force inside the conical filter ring. The blocking plate divides the conical filter ring into two parts. During the process of generating centrifugal force, the blood water in the fat mixture is separated and discharged through the filter holes.

[0030] After the blood-water separation is completed in the conical filter ring, the fat mixture is no longer introduced into the connecting tube. Instead, gas is continuously supplied. At this time, the conical block is adjusted to a clockwise impeller. The gas then pushes the conical block and the flexible plate. The conical block and the flexible plate drive the slide rod and the blocking plate to rotate in the opposite direction. As the slide rod rotates, it moves along the sliding sleeve towards the side closer to the collection chamber. During the movement, the blocking plate disengages from the conical filter ring. The separated fat is then discharged through the channel between the blocking plate and the conical filter ring. Finally, by opening the solenoid valve in the connecting port, the fat in the separation chamber is transported into the collection chamber.

[0031] When the fat mixture needs to be separated and purified again, the conical block is adjusted to a counterclockwise impeller. Then, under the action of the gas, the conical block rotates in the opposite direction, driving the slide bar and the blocking plate to reset. The blocking plate then separates the conical filter ring again.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] The negative pressure generated by the negative pressure pump not only draws out the fat mixture composed of fat and blood, but also uses the fat mixture or the drawn-out gas to drive the rotating ring, thereby cutting large pieces of fat and separating fat and blood. Subsequently, the negative pressure drives the initially separated fat mixture to move, causing the fat mixture to drive the impeller composed of a cone-shaped block and a flexible plate to rotate. By using the clockwise or counterclockwise deflection of the flexible plate, the cone-shaped block forms impeller shapes in different directions, thereby achieving further separation and transportation of the fat mixture. This avoids the problem of fat cells being compressed and necrotic due to excessive fat particle size, thus improving the storage quality of fat and providing a guarantee for subsequent fat transplantation to other parts of the body. Attached Figure Description

[0034] Figure 1 This is a perspective view of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of the absorption gun;

[0036] Figure 3 This is an internal front view of the absorption gun;

[0037] Figure 4 for Figure 4 Enlarged view of point A in the middle;

[0038] Figure 5 A schematic diagram of the internal structure of the collection components;

[0039] Figure 6 To collect the internal front view of the component;

[0040] Figure 7This is a structural diagram of the slide bar, conical block, and blocking plate;

[0041] In the diagram: 1. Absorption gun; 11. Barrel; 111. Expander tube; 12. Handle; 13. Inner tube; 14. Outer tube; 15. Rotating ring; 151. Rotating blade; 152. Slice; 153. Reducing tube; 16. Flow channel; 17. Filter tube;

[0042] 2. Collection component; 21. Separation chamber; 22. Collection chamber; 221. Output port; 23. Connection port; 24. Conical filter ring; 25. Cooling chamber; 251. Expansion ring; 26. Sliding sleeve; 27. Sliding rod; 28. Conical block; 281. Rotating cone; 282. Flexible plate; 29. ​​Blocking plate; 291. Conveying trough;

[0043] 3. Connecting pipe. Detailed Implementation

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example: Figures 1-7 As shown, the present invention provides a technical solution for a medical fat collection device with separation and purification functions, including an absorption gun 1 and a collection component 2. A connecting pipe 3 is provided between the absorption gun 1 and the collection component 2. The two ends of the connecting pipe 3 are respectively connected to the absorption gun 1 and the collection component 2. The absorption gun 1 and the collection component 2 are respectively connected to a negative pressure pump through a pipe. The absorption gun 1 is used to perform preliminary treatment on the fat mixture, and the collection component 2 extracts and stores the fat again.

[0046] As a specific embodiment of the present invention, the absorption gun 1 is composed of a barrel 11 and a handle 12. The barrel 11 is located at the end of the handle 12 away from the connecting pipe 3. An inner tube 13 and an outer tube 14 are provided inside the handle 12. The inner tube 13 extends from the side wall of the handle 12, and the outer tube 14 is connected to the connecting pipe 3. An expansion tube 111 is provided on the side of the barrel 11 near the handle 12.

[0047] In one specific embodiment of the present invention, a rotating ring 15 is provided on the side of the inner tube 13 near the gun barrel 11. The rotating ring 15 is rotatably connected to the inner tube 13. A plurality of rotating blades 151 are provided inside the rotating ring 15. A plurality of slices 152 are provided on the side of the rotating ring 15 away from the rotating blades 151. The plurality of slices 152 are arranged around the axis of the rotating ring 15.

[0048] In one specific embodiment of the present invention, a reducing pipe 153 is provided on the side of the rotating ring 15 near the expanding pipe 111, and a plurality of filter pipes 17 are provided on the side of the inner pipe 13 away from the rotating ring 15.

[0049] In one specific embodiment of the present invention, a plurality of flow grooves 16 are provided on the side of the outer tube 14 near the gun barrel 11. A plurality of notches are provided on the flow grooves 16. The distance between the end of the flow groove 16 near the gun barrel 11 and the end of the rotating ring 15 near the gun barrel 11 is less than the distance between the end of the flow groove 16 near the connecting pipe 3 and the end of the rotating ring 15 near the connecting pipe 3.

[0050] In one specific embodiment of the present invention, the collection component 2 includes a separation cavity 21 and a collection cavity 22. The separation cavity 21 is located above the collection cavity 22. A plurality of connection ports 23 are provided between the separation cavity 21 and the collection cavity 22. The connection ports 23 are respectively connected to the separation cavity 21 and the collection cavity 22. An output port 221 is provided at the bottom of the collection cavity 22. The collection cavity 22 is annular.

[0051] In one specific embodiment of the present invention, a conical filter ring 24 is provided in the separation chamber 21, which divides the separation chamber 21 into two parts. The conical filter ring 24 has a number of filter holes on the side near the connecting pipe 3.

[0052] In one specific embodiment of the present invention, a cooling chamber 25 is provided outside the collecting chamber 22, an expansion ring 251 is provided on the side of the cooling chamber 25 near the collecting chamber 22, a water inlet is provided on the top of the cooling chamber 25, and a water outlet is provided on the side wall of the cooling chamber 25.

[0053] In one specific embodiment of the present invention, a sliding sleeve 26 is provided inside the conical filter ring 24. The sliding sleeve 26 is connected to the conical filter ring 24 through a support frame. A sliding rod 27 is provided in the sliding sleeve 26. A conical block 28 is provided at the top of the sliding rod 27, and a blocking plate 29 is provided at the bottom of the sliding rod 27.

[0054] In one specific embodiment of the present invention, a rotating cone 281 is provided on the top of the conical block 28, a micro motor is provided inside the conical block 28, the drive shaft of the micro motor is connected to the rotating cone 281, a plurality of flexible plates 282 are provided on the outer wall of the conical block 28, one end of the flexible plate 282 is connected to the outer wall of the rotating cone 281, and the other end of the flexible plate 282 is connected to the conical block 28, the flexible plate 282 and the conical block 28 are rotatably connected, and a plurality of conveying grooves 291 are provided on the blocking plate 29.

[0055] Working principle of the invention:

[0056] When the negative pressure pump is started, the fat mixture is drawn into the absorption gun 1 through the gun barrel 11. When the fat mixture is transported to the junction of the inner tube 13, the outer tube 14 and the gun barrel 11, the blood and fat in the fat mixture are separated. The blood is transported to the inner tube 13, while the fat and a part of the blood are transported through the outer tube 14.

[0057] Because the negative pressure pump generates negative pressure, the barrel 11 continuously draws gas or fat mixture from outside the absorption gun 1, which increases the flow rate of the fluid inside the barrel 11. Furthermore, the inner tube 13 is placed inside the outer tube 14, so that the diameter of the inner tube 13 is smaller than that of the outer tube 14, and thus the flow rate of the fluid inside the inner tube 13 is greater than that inside the outer tube 14.

[0058] This causes most of the blood in the fat mixture absorbed in the barrel 11 to flow into the inner tube 13. As the blood or gas flows into the inner tube 13, it passes through the rotating ring 15. Since there are several rotating blades 151 in the inner wall of the rotating ring 15, the blood and gas will push the rotating ring 15 to rotate as it flows through the rotating ring 15. After the rotating ring 15 rotates, it will drive the slice 152 on the outer wall of the rotating ring 15 to rotate. When the slice 152 rotates, it cuts the fat, cutting large pieces of fat into smaller pieces.

[0059] After separation, large pieces of fat flow towards the side closer to the flow channel 16 under negative pressure. When the large pieces of fat enter the outer tube 14, they first encounter the slices 152, which cut them into several smaller pieces. These smaller pieces then flow through the flow channel 16 to the outer tube 14. Because the distance between the end of the flow channel 16 near the gun barrel 11 and the end of the rotating ring 15 near the gun barrel 11 is less than the distance between the end of the flow channel 16 near the connecting tube 3 and the end of the rotating ring 15 near the connecting tube 3, the flow rate of the fat in the flow channel 16 is accelerated, preventing it from being crushed by the slices 152 and thus ensuring the integrity of the fat cells. The fat entering the outer tube 14 is then transported from the outer tube 14 to the connecting tube 3 and finally to the collection assembly 2.

[0060] When the fat mixture flows from the gun barrel 11 to the inner tube 13, it will pass through the expansion tube 111, which reduces the flow rate of the fat mixture in the expansion tube 111. In addition, the rotating ring 15 is provided with a narrowing tube 153 on the side near the expansion tube 111, which prevents large pieces of fat from entering the inner tube 13. When the narrowing tube 153 rotates with the rotating ring 15, the fat will be thrown between the narrowing tube 153 and the expansion tube 111, and finally flow into the flow channel 16.

[0061] The cut fat flows from the flow channel 16 to the outer tube 14. During the flow, the flow velocity in the inner tube 13 is greater than that in the outer tube 14, which makes the pressure in the inner tube 13 less than that in the outer tube 14. As a result, the blood mixed with fat in the outer tube 14 flows to the filter tube 17 and flows from the outer tube 14 to the inner tube 13 through the filter tube 17, further realizing the separation of blood and fat.

[0062] When the slide bar 27 rotates, it drives the fat on the side of the conical filter ring 24 close to the collection chamber 22 to rotate, so that the fat rotates around the axis of the separation chamber 21 under the action of centrifugal force of the slide bar 27. During the rotation, the blood mixed in the fat can be filtered and separated through several filter holes under the action of centrifugal force, and the filtered fat is transported downward through the connection port 23 to the collection chamber 22.

[0063] When the micro motor drives the rotating cone 281 to rotate clockwise, the rotating cone 281 drives one end of the flexible plate 282 to deflect, so that several flexible plates 282 and cone blocks 28 cooperate with each other to form an impeller in a clockwise direction.

[0064] When the micro motor drives the rotating cone 281 to reverse, the rotating cone 281 drives one end of the flexible plate 282 to deflect in the opposite direction, so that several flexible plates 282 and cone blocks 28 cooperate with each other to form an impeller in the counterclockwise direction.

[0065] When the conical block 28 is a counterclockwise impeller, the fat mixture delivered to the separation chamber 21 by the connecting pipe 3 will impact the conical block 28 and the flexible plate 282, causing the conical block 28 and the flexible plate 282 to drive the slide bar 27 and the blocking plate 29 to rotate, which will generate centrifugal force inside the conical filter ring 24, and the blocking plate 29 will divide the conical filter ring 24 into two parts. During the process of generating centrifugal force, the blood water in the fat mixture will be separated and discharged through the filter holes.

[0066] After the blood-water separation in the conical filter ring 24 is completed, the fat mixture is no longer introduced into the connecting pipe 3. Instead, gas is continuously supplied. At this time, the conical block 28 is adjusted to be a clockwise impeller. The gas then pushes the conical block 28 and the flexible plate 282. The conical block 28 and the flexible plate 282 drive the slide rod 27 and the blocking plate 29 to rotate in the opposite direction. As the slide rod 27 rotates, it moves along the sliding sleeve 26 towards the side closer to the collection chamber 22. During the movement, the blocking plate 29 disengages from the conical filter ring 24. The separated fat is then discharged through the channel between the blocking plate 29 and the conical filter ring 24. Finally, by opening the solenoid valve in the connecting port 23, the fat in the separation chamber 21 is transported into the collection chamber 22.

[0067] When the fat mixture needs to be separated and purified again, the cone block 28 is adjusted to be an impeller in the counterclockwise direction. Then, under the action of the gas, the cone block 28 rotates in the opposite direction, driving the slide bar 27 and the blocking plate 29 to reset. Then, the blocking plate 29 separates the cone filter ring 24 again.

[0068] The controller starts the water pump, which draws ice water from the cold water chamber and delivers it through a pipe to the inlet. The ice water then flows into the cooling chamber 25, filling it and cooling and insulating the collection chamber 22. This keeps the fat in a suitable storage temperature environment. Because the cooling chamber 25 has an expansion ring 251 on the side near the collection chamber 22, the wall thickness on that side is thinner, allowing the low temperature of the ice water to penetrate the wall and reach the collection chamber 22 more quickly, thus better storing the fat at low temperatures.

[0069] Because the collecting chamber 22 is annular and is equipped with an expansion ring 251, the ice water can transfer low temperature from the periphery to the center and from the center to the periphery, which makes the transfer of low temperature more efficient and further improves the quality of fat storage. When fat needs to be extracted for use, the fat is discharged out through the outlet 221.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A medical fat collection device with separation and purification functions, characterized in that: It includes an absorption gun (1) and a collection component (2). A connecting pipe (3) is provided between the absorption gun (1) and the collection component (2). The two ends of the connecting pipe (3) are respectively connected to the absorption gun (1) and the collection component (2). The absorption gun (1) and the collection component (2) are respectively connected to a negative pressure pump through a pipe. The absorption gun (1) is used for preliminary treatment of fat mixture, and the collection component (2) is used for further extraction and storage of fat. The absorption gun (1) consists of a barrel (11) and a handle (12). The barrel (11) is located at the end of the handle (12) away from the connecting tube (3). The handle (12) is provided with an inner tube (13) and an outer tube (14). The inner tube (13) extends from the side wall of the handle (12), and the outer tube (14) is connected to the connecting tube (3). A rotating ring (15) is provided on the side of the inner tube (13) near the gun barrel (11). The rotating ring (15) is rotatably connected to the inner tube (13). A plurality of rotating blades (151) are provided inside the rotating ring (15). A plurality of slices (152) are provided on the side of the rotating ring (15) away from the rotating blades (151). The plurality of slices (152) are arranged around the axis of the rotating ring (15). The outer tube (14) has several flow grooves (16) on the side near the gun barrel (11). Several notches are provided on the flow grooves (16). The distance between the end of the flow groove (16) near the gun barrel (11) and the end of the rotating ring (15) near the gun barrel (11) is less than the distance between the end of the flow groove (16) near the connecting pipe (3) and the end of the rotating ring (15) near the connecting pipe (3). The barrel (11) is provided with an expansion tube (111) on the side near the handle (12), the rotating ring (15) is provided with a reduction tube (153) on the side near the expansion tube (111), and the inner tube (13) is provided with a plurality of filter tubes (17) on the side away from the rotating ring (15).

2. The medical fat collection device with separation and purification function according to claim 1, characterized in that: The collecting component (2) includes a separation chamber (21) and a collecting chamber (22). The separation chamber (21) is located above the collecting chamber (22). A plurality of connection ports (23) are provided between the separation chamber (21) and the collecting chamber (22). The connection ports (23) are respectively connected to the separation chamber (21) and the collecting chamber (22). An output port (221) is provided at the bottom of the collecting chamber (22). The collecting chamber (22) is annular.

3. A medical fat collection device with separation and purification function according to claim 2, characterized in that: The separation chamber (21) is provided with a conical filter ring (24), which divides the separation chamber (21) into two parts. The conical filter ring (24) has several filter holes on the side near the connecting pipe (3).

4. A medical fat collection device with separation and purification function according to claim 2, characterized in that: A cooling chamber (25) is provided outside the collection chamber (22). An expansion ring (251) is provided on the side of the cooling chamber (25) near the collection chamber (22). A water inlet is provided on the top of the cooling chamber (25), and a water outlet is provided on the side wall of the cooling chamber (25).

5. A medical fat collection device with separation and purification function according to claim 3, characterized in that: A sliding sleeve (26) is provided inside the conical filter ring (24). The sliding sleeve (26) is connected to the conical filter ring (24) through a support frame. A sliding rod (27) is provided in the sliding sleeve (26). A conical block (28) is provided at the top of the sliding rod (27), and a blocking plate (29) is provided at the bottom of the sliding rod (27).

6. A medical fat collection device with separation and purification function according to claim 5, characterized in that: The top of the conical block (28) is provided with a rotating cone (281), and a micro motor is provided inside the conical block (28). The drive shaft of the micro motor is connected to the rotating cone (281). Several flexible plates (282) are provided on the outer wall of the conical block (28). One end of the flexible plate (282) is connected to the outer wall of the rotating cone (281), and the other end of the flexible plate (282) is connected to the conical block (28). The flexible plate (282) is rotatably connected to the conical block (28). Several conveying grooves (291) are provided on the blocking plate (29).

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