Device for separating and purifying fat gum

Abstract

The utility model relates to a device for separating and purifying fat gum. The device for separating and purifying the fat gum comprises a barrel body, a top cover for sealing the upper end of the barrel body, a filtering assembly which is arranged in the barrel body and is formed by stacking a plurality of horizontally arranged filtering layers, and a static pressure assembly for providing fixed downward pressure for the fat gum above the filtering assembly, the static pressure assembly comprises a circular pressing plate located in the can body and matched with the inner wall of the can body, a handle located above the can body and a connecting rod inserted into the center opening of the top cover, and the two ends of the connecting rod are connected with the handle and the circular pressing plate respectively. The circular pressing plate is located above the filtering assembly and can move up and down along the inner wall of the barrel body and abut against the filtering assembly. The device for separating and purifying the fat gum is simple in structure and convenient to use, does not need to be driven by a driving mechanism such as a motor, can effectively separate and purify the fat gum, and can filter large fat particles, fat with fiber tissues and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of cell separation and purification, in particular to a device for separation and purification of fat gel. Background Art

[0002] Adipose-derived stem cell matrix gel, referred to as fat gel, is a gel-like fat filling material obtained by pure physical methods of autologous fat tissue, including static, centrifugal purification, cutting and crushing, and then centrifugal purification. Fat gel can play a filling role and can effectively relieve the symptoms of facial depression or forehead wrinkles.

[0003] When doing facial fillers, larger fat particles will clog the needle hole, and after entering a part of the human body, they will increase the chance of calcified nodules. Secondly, after fat with fibrous tissue enters the human body, it will attach to other fat cells, causing the fat cells to be unable to absorb nutrients, affecting the survival rate of fat. Therefore, it is necessary to further separate and purify the fat gel before filling to filter out larger fat particles, fat with fibrous tissue, etc. Utility Model Content

[0004] In view of the above problems, the present utility model is proposed to provide a device for separating and purifying fat gel, which overcomes the above problems or at least partially solves the above problems.

[0005] The device for separating and purifying fat gel comprises a barrel body, a top cover for closing the upper end of the barrel body, a filter assembly installed in the barrel body and composed of a plurality of horizontally arranged filter layers stacked on top of each other, and a static pressure assembly for providing a fixed downward pressure to the fat gel above the filter assembly; a liquid inlet pipe is arranged on the upper part of the barrel body, through which the fat gel can enter the interior of the barrel body; a liquid discharge pipe is arranged on the bottom of the barrel body, through which the fat gel filtered by the filter assembly can be discharged from the interior of the barrel body; valves are arranged on both the liquid inlet pipe and the liquid discharge pipe; the filter layer can enter and exit the barrel body through a horizontal and arc-shaped filter layer inlet formed in the middle part of the barrel body, a door body for closing the filter layer inlet is arranged in the middle part of the barrel body, and a portion of the door body covering the opening The inner wall is in an arc shape, and the radius of the inner wall is the same as the radius of the inner wall of the barrel body; an outer frame is arranged on the outer periphery of the filter layer, the surface layer of the outer frame is an elastic layer, and the outer diameter of the outer frame is larger than the inner diameter of the barrel body in a natural state; a raised annular horizontal support platform is formed on the inner wall of the barrel body, the horizontal support platform is adjacent to the lower edge of the filter layer inlet, and the outer frame of the filter layer located at the bottom is overlapped on the annular support platform; the static pressure assembly includes a circular pressure plate which is in the barrel body and cooperates with the inner wall of the barrel body, a handle located above the barrel body, and a connecting rod which is inserted into the central opening of the top cover and has the handle and the circular pressure plate connected at both ends respectively; the connecting rod is arranged vertically; the circular pressure plate is located above the filter assembly, and it can move up and down along the inner wall of the barrel body and abut against the filter assembly.

[0006] In one embodiment, the surface layer of the peripheral wall of the circular pressure plate is a compressed elastic layer.

[0007] In one embodiment, the connecting rod is formed with a locking hole, and when the circular pressing plate abuts against the top cover, the circular pressing plate can be locked at a position abutting against the top cover by a locking piece extending into the locking hole.

[0008] In one embodiment, the bottom surface of the barrel body is arranged inclined, and the inlet of the drainage pipe is adjacent to the lowest point of the bottom surface of the barrel body.

[0009] In one embodiment, the filter assembly includes a first filter layer with a pore size of 0.2 to 5 microns, a second filter layer with a pore size of 10 to 100 microns, and a third filter layer with a pore size of 100 to 500 microns. The first filter layer, the second filter layer, and the third filter layer are stacked in sequence from bottom to top.

[0010] In one embodiment, the first filter layer, the second filter layer, and the third filter layer are all microporous membranes.

[0011] The device for separating and purifying fat gel of the utility model has a simple structure, is easy to use, and does not require a motor or other driving mechanism to drive. It can effectively separate and purify fat gel obtained from autologous fat tissue after standing, centrifugal purification, cutting and crushing, and then centrifugal purification, and filter larger fat particles, fat with fibrous tissue, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1 This is a schematic structural diagram of an exemplary embodiment of a device for separation and purification of fat gel according to the utility model;

[0014] Figure 2 for Figure 1 A cross-sectional view of a device for separation and purification of fat gel;

[0015] Figure 3 for Figure 2 A schematic structural diagram of another state of the device for separation and purification of fat gel;

[0016] Figure 4 for Figure 2A schematic structural diagram of another state of the device for separating and purifying fat gel.

[0017] Explanation of the accompanying drawings: 1. barrel body; 2. top cover; 3. filter assembly; 4. static pressure assembly; 5. top plate; 6. annular lower edge; 7. liquid inlet pipe; 8. liquid discharge pipe; 9. door body; 10. outer frame; 11. horizontal support platform; 12. first filter layer; 13. second filter layer; 14. third filter layer; 15. circular pressure plate; 16. handle; 17. connecting rod; 18. locking hole; 19. locking piece. DETAILED DESCRIPTION

[0018] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, but cannot be understood as limiting the utility model. Ordinary technicians in this field can make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the utility model. The scope of the utility model is defined by the claims and their equivalents.

[0019] The terms "center", "longitudinal", "lateral", "length", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like mentioned or may be mentioned in the description of the present invention indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In addition, the terms "include", "comprises" and any variations thereof are intended to cover non-exclusive inclusions.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] A device for separating and purifying fat gel according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

[0023] See also Figure 1 and Figure 2 According to an embodiment of the utility model, a device for separating and purifying fat gel comprises a barrel body 1, a top cover 2 for sealing the upper end of the barrel body 1, a filter assembly 3 composed of a plurality of horizontally arranged filter layers stacked and installed in the barrel body 1, and a static pressure assembly 4 for providing a fixed downward pressure to the fat gel above the filter assembly 3.

[0024] The barrel body 1 and the top cover 2 can be made of stainless steel and / or other suitable materials. The top cover 2 can be installed on the upper end of the barrel body 1 in a detachable manner. For example, the top cover 2 can include a circular top plate 5 and an annular lower edge 6 formed by extending downward from the edge of the top plate 5. The inner wall surface of the annular lower edge 6 is formed with a first thread, and the outer wall surface of the top of the barrel body 1 is formed with a second thread that matches the first thread. The top cover 2 and the barrel body 1 are both connected by threads. Of course, the top cover 2 and the barrel body 1 can also be connected in other detachable ways. The top cover 2 and the barrel body 1 are connected in a detachable manner, which is convenient for cleaning the inside of the barrel body 1 and the inside of the top cover 2.

[0025] The upper part of the barrel body 1 is provided with a liquid inlet pipe 7, through which the fat gel can enter the barrel body 1. For example, the fat gel obtained after the autologous fat tissue is left to stand, centrifuged, purified, cut and crushed, and then centrifuged, purified, etc., is injected into the barrel body 1 through the liquid inlet pipe 7 by a syringe. The liquid inlet pipe 7 can be made of the same material as the barrel body 1, and the inlet end of the liquid inlet pipe 7 can be covered with a rubber sleeve to prevent leakage between the syringe and the inlet end of the liquid inlet pipe 7 during the process of injecting the fat gel into the barrel body 1 through the syringe.

[0026] The liquid inlet pipe 7 is provided with a valve (not shown), which needs to be opened before injecting the fat glue into the barrel 1. After the injection is completed, the valve is closed.

[0027] The bottom of the barrel body 1 is provided with a drainage pipe 8, through which the fat gel filtered by the filter assembly 3 can be discharged from the barrel body 1. Specifically, the filtered fat gel can be sucked out of the barrel body 1 by a syringe. The drainage pipe 8 can be made of the same material as the barrel body 1, and a rubber sleeve can be provided at the outlet end of the drainage pipe 8 to prevent leakage between the syringe and the outlet end of the drainage pipe 8 during the process of sucking out the fat gel in the barrel body 1 by the syringe.

[0028] The drainage pipe 8 is provided with a valve (not shown), which is closed during the fat gel filtration process. After the injection is completed, the valve is opened again to suck out the fat gel in the barrel using a syringe. The drainage pipe 8 can also discharge waste liquid during the cleaning process of the barrel body 1.

[0029] Preferably, the bottom surface of the barrel body 1 is arranged at an angle, and the inlet of the drainage pipe 8 is adjacent to the lowest point of the bottom surface of the barrel body 1. The inclined bottom surface can promote the separated and purified (filtered) fat gel to converge to the inlet of the drainage pipe 8, which is beneficial to the subsequent suction of the fat gel in the barrel body 1.

[0030] The filter layer can enter and exit the barrel body 1 through the horizontal and arc-shaped filter layer inlet formed in the middle of the barrel body 1. A door body 9 for closing the filter layer inlet is provided in the middle of the barrel body 1. The inner wall of the portion of the door body 9 covering the filter layer inlet is in an arc shape, and the radius of the inner wall is the same as the radius of the inner wall of the barrel body 1. A sealing ring can be provided between the door body 9 and the barrel body 1 to prevent leakage. Preferably, the arc of the virtual arc corresponding to the filter layer inlet is π.

[0031] An outer frame 10 is provided on the periphery of the filter layer to improve the stability of the filter layer shape and structure. The surface layer of the outer frame 10 is an elastic layer, and the outer diameter of the outer frame 10 is slightly larger than the inner diameter of the barrel body 1 in a natural state. The filter layer enters the barrel body 1 through the filter layer inlet and is arranged horizontally. After the door body 9 is closed, the surface layer of the outer frame 10 is compressed and slightly deformed to prevent the fat gel from passing between the filter layer and the inner wall of the barrel body 1, or between the filter layer and the inner wall of the door body 9 during the filtering process.

[0032] The inner wall of the barrel 1 is formed with a raised annular horizontal support platform 11, which is adjacent to the lower edge of the filter layer inlet, and the outer frame 10 of the filter layer at the bottom is overlapped on the annular support platform. In this embodiment, the filter assembly 3 is composed of three horizontally arranged filter layers stacked together, and the pore size of each filter layer is different. For example, the filter assembly 3 can be composed of a first filter layer 12 with a pore size of 0.2 to 5 microns, a second filter layer 13 with a pore size of 10 to 100 microns, and a third filter layer 14 with a pore size of 100 to 500 microns stacked from bottom to top. The third filter layer 14 at the top can remove larger tissue fragments, blood clots, etc. The second filter layer 13 in the middle can remove smaller particles, cell fragments and possible microbial contamination. The first filter layer 12 at the bottom can remove extremely fine particles, bacteria and other microorganisms. It should be understood that the filter assembly 3 can also be composed of other suitable number of filter layers according to the needs of different surgical scenarios, and the pore size of each filter layer can also adopt other suitable diameters.

[0033] Preferably, the first filter layer 12, the second filter layer 13, and the third filter layer 14 are all microporous membranes.

[0034] The static pressure assembly 4 includes a circular pressing plate 15 located in the barrel body 1 and matched with the inner wall of the barrel body 1, a handle 16 located above the barrel body 1, and a connecting rod 17 inserted into the central opening of the top cover 2 and connected to the handle 16 and the circular pressing plate 15 at both ends. The circular pressing plate 15, the handle 16, and the connecting rod 17 are preferably made of metal materials, for example, stainless steel. The connecting rod 17 is arranged vertically, and the center of gravity of the circular pressing plate 15, the center of gravity of the handle 16, and the center of gravity of the connecting rod 17 are all on the same virtual vertical line. The static pressure assembly 4 provides a fixed downward pressure to the fat glue located above the filter assembly 3 by its own gravity. Specifically, the circular pressing plate 15 is located above the filter assembly 3, and pulling the handle 16 upward can drive the circular pressing plate 15 to move upward along the inner wall of the barrel body 1, and releasing the handle 16 drives the circular pressing plate 15 to move downward along the inner wall of the barrel body 1 under the action of the static pressure assembly 4's own gravity until it reaches the filter assembly 3. For example, in this embodiment, under the action of the gravity of the filter assembly 3 itself, the circular pressing plate 15 is driven to move downward along the inner wall of the barrel body 1 until it reaches the third filter layer 14 .

[0035] The connecting rod 17 is formed with a locking hole 18. When the circular pressing plate 15 abuts against the top cover 2, the circular pressing plate 15 can be locked at a position abutting against the top cover 2 by a locking member 19 extending into the locking hole 18. Figure 2 As shown. The locking member 19 can be a stainless steel rod with a pull ring. After the fat glue is injected into the barrel body 1 through the liquid inlet pipe 7, the locking member 19 is pulled out, and the circular pressing plate 15 is controlled to slowly fall by the handle 16 until the circular pressing plate 15 presses on the fat glue, and then the handle 16 is released, and the circular pressing plate 15 is driven to slowly move downward under the action of the static pressure component 4's own gravity until it reaches the filter component 3, as shown in FIG. Figure 4 As shown. In the process of the static pressure component 4 driving the circular pressing plate 15 to move slowly downward under the action of its own gravity, the static pressure component 4 provides a fixed downward pressure to the fat gel above the filter component 3, prompting the fat gel to slowly pass through each filter layer, thereby achieving separation and purification of the fat gel. The device for separation and purification of fat gel has a simple structure, is easy to use, and does not require a driving mechanism such as a motor for driving.

[0036] Preferably, the surface layer of the peripheral wall of the circular pressing plate 15 is a compressed elastic layer, such as a compressed rubber layer, to avoid leakage between the circular pressing plate 15 and the inner wall of the barrel body 1.

Claims

1. A device for separation and purification of fat gel, characterized in that: It comprises a barrel body, a top cover closing the upper end of the barrel body, a filter assembly formed by stacking a plurality of horizontally arranged filter layers installed in the barrel body, and a static pressure assembly for providing a fixed downward pressure to the fat gel above the filter assembly; a liquid inlet pipe is arranged on the upper part of the barrel body, through which the fat gel can enter the interior of the barrel body; a liquid discharge pipe is arranged on the bottom of the barrel body, through which the fat gel can be discharged from the interior of the barrel body; both the liquid inlet pipe and the liquid discharge pipe are provided with valves; the filter layer can enter and exit the barrel body through a horizontal and arc-shaped filter layer inlet formed in the middle part of the barrel body, and a door body for closing the filter layer inlet is arranged in the middle part of the barrel body, and the inner wall of the part of the door body covering the filter layer inlet is round The filter layer is arc-shaped, and the radius of the inner wall is the same as the radius of the inner wall of the barrel body; an outer frame is arranged on the outer periphery of the filter layer, the surface layer of the outer frame is an elastic layer, and the outer diameter of the outer frame is larger than the inner diameter of the barrel body in a natural state; a raised annular horizontal support platform is formed on the inner wall of the barrel body, the horizontal support platform is adjacent to the lower edge of the filter layer inlet, and the outer frame of the filter layer at the bottom is overlapped on the annular support platform; the static pressure assembly includes a circular pressure plate in the barrel body and matched with the inner wall of the barrel body, a handle located above the barrel body, and a connecting rod inserted into the central opening of the top cover and connected to the handle and the circular pressure plate at both ends; the connecting rod is arranged vertically; the circular pressure plate is located above the filter assembly, and it can move up and down along the inner wall of the barrel body and abut against the filter assembly.

2. The device for separation and purification of fat gel according to claim 1, characterized in that: The surface layer of the peripheral wall of the circular pressing plate is a compressed elastic layer.

3. The device for separation and purification of fat gel according to claim 2, characterized in that: The connecting rod is formed with a locking hole. When the circular pressing plate abuts against the top cover, the circular pressing plate can be locked at a position abutting against the top cover by a locking piece extending into the locking hole.

4. The device for separation and purification of fat gel according to claim 3, characterized in that: The bottom surface of the barrel body is arranged obliquely, and the inlet of the drainage pipe is adjacent to the lowest point of the bottom surface of the barrel body.

5. The device for separation and purification of fat gel according to claim 4, characterized in that: The filter assembly includes a first filter layer with a pore size of 0.2 to 5 microns, a second filter layer with a pore size of 10 to 100 microns, and a third filter layer with a pore size of 100 to 500 microns. The first filter layer, the second filter layer, and the third filter layer are stacked in sequence from bottom to top.

6. The device for separation and purification of fat gel according to claim 5, characterized in that: The first filter layer, the second filter layer and the third filter layer are all microporous membranes.

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