Elastic fat filling and shaping system

Abstract

The invention relates to the technical field of medical cosmetology, and discloses an elastic fat filling and shaping system which comprises a fat pretreatment module, an elastic supporting module, a dynamic injection module, a biological fixation module, a degradation regulation and control module and a postoperative shaping module. The fat pretreatment module comprises a multi-stage centrifugal separation unit, a cell activation unit and a viscoelasticity adjusting unit, the multi-stage centrifugal separation unit adopts a gradient centrifugal device and an fat cell screening membrane, and the cell activation unit is integrated with a low-temperature mixing cavity of fat cells and platelet-rich plasma (PRP); the viscoelasticity adjusting unit preloads temperature-sensitive sodium alginate gel through an injector, and the fat pretreatment module, the elastic supporting module, the dynamic injection module, the biological fixation module, the degradation regulation and control module and the postoperative shaping module are integrated, so that the elastic fat filling and shaping system is simpler and more convenient to operate and can better adapt to individual differences, and the stability of the elastic fat filling and shaping system is improved. The survival rate and the shaping effect of fat transplantation are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical cosmetic technology, and in particular to an elastic fat filling and shaping system. Background Art

[0002] With rapid economic development and improved living standards, more and more people are seeking rejuvenation through medical aesthetics. Medical aesthetics devices are essential tools for this practice. Medical aesthetics refers to the use of surgery, medications, medical devices, and other invasive or traumatic medical techniques to repair and reshape the appearance and shape of various body parts. Medical aesthetics requires the use of various medical devices, medications, and procedures that meet national standards. These procedures must be performed in licensed medical institutions. Radiofrequency medical devices use a specific frequency of current to directly flow through human tissue, generating a thermal effect that heats and contracts the skin and subcutaneous tissue to promote collagen regeneration. These devices are used for wrinkle treatment and skin tightening and contouring, and are suitable for patients with sagging facial skin, prominent wrinkles, and obesity. Medical device regulations primarily regulate radiofrequency therapeutic devices, radiofrequency skin therapeutic devices, radiofrequency / red light / negative pressure therapeutic devices, and radiofrequency / ultrasound therapeutic devices.

[0003] The traditional elastic fat filling and shaping system has the problem of fat displacement. After injection, fat is easily affected by muscle movement or external force, resulting in uneven filling and lack of elastic support. Static filling cannot adapt to dynamic changes in tissues and may form nodules or depressions. In addition, traditional methods rely on the doctor's experience, making it difficult to accurately control fat distribution and blood circulation reconstruction, and the survival rate is unstable.

[0004] To this end, we propose an elastic fat filling and shaping system. Summary of the Invention

[0005] The present invention mainly aims to solve the technical problems existing in the above-mentioned prior art and provide an elastic fat filling and shaping system.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions: an elastic fat filling and shaping system, comprising a fat pretreatment module, an elastic support module, a dynamic injection module, a biological fixation module, a degradation regulation module and a postoperative shaping module; the fat pretreatment module comprises a multi-stage centrifugal separation unit, a cell activation unit and a viscoelasticity adjustment unit; the multi-stage centrifugal separation unit adopts a gradient centrifugation device and a fat cell screening membrane to separate highly active fat cells with a particle size greater than 100 μm; the cell activation unit integrates a low-temperature mixing chamber of fat cells and platelet-rich plasma PRP to activate cell metabolic activity; the viscoelasticity adjustment unit preloads a temperature-sensitive sodium alginate gel through a syringe to adjust the rheological properties of adipose tissue with a viscosity range of 50-200 Pa·s.

[0007] Preferably, the elastic support module includes a shape memory core layer unit, an elastic fiber woven layer unit and a surface micro-groove structure unit. The shape memory core layer unit is made of polycaprolactone and polyurethane copolymer, deforms in response to body temperature, has a deformation rate of ≥80%, and has a preset curvature matching the target area. The elastic fiber woven layer unit adopts a polyester fiber three-dimensional woven mesh wrapped with polydimethylsiloxane PDMS with a pore size of 200-400μm. The surface micro-groove structure unit adopts laser-engraved directional grooves with a depth of 50-150μm to guide the orderly arrangement of fat cells.

[0008] Preferably, the dynamic injection module includes a coaxial dual-channel needle tube unit, a pressure feedback unit and a multi-directional diversion head unit. The coaxial dual-channel needle tube unit is used to deliver fat tissue with an inner diameter of 1.2mm and an outer diameter of 2.0mm to release degradable microspheres with a particle size of 50-200μm. The pressure feedback unit is based on a micro piezoelectric sensor with an accuracy of ±0.1N, which monitors the injection resistance in real time to prevent overfilling. The multi-directional diversion head unit is used for a rotatable injection head with a bifurcation angle of 15°-60° to achieve radial uniform distribution.

[0009] Preferably, the biological fixation module includes a photocrosslinking anchoring unit, a magnetic response positioning unit and a microneedle array unit. The photocrosslinking anchoring unit adopts a photocurable coating of methacrylated gelatin GelMA, and a 405nm light source triggers in situ gelation. The magnetic response positioning unit is used to embed ferroferric oxide nanoparticles in the stent, and an external magnetic field guides precise positioning. The microneedle array unit uses bioabsorbable microneedles with a length of 0.5-1.2mm to penetrate the surrounding tissue to provide initial mechanical fixation.

[0010] Preferably, the degradation regulation module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit and an enzyme cleavage response unit. The pH-sensitive sustained-release layer unit integrates a lipase inhibitor wrapped in polylactic acid-glycolic acid copolymer PLGA, which is released in response to the inflammatory environment. The pore gradient structure unit is used to adjust the porosity gradient of the scaffold from the core to the surface from 50% to 85%, controlling the degradation rate to match tissue regeneration. The enzyme cleavage response unit is used for the scaffold connection bond modified with collagen-specific enzyme cleavage sites to achieve targeted degradation.

[0011] Preferably, the postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit and a deformation monitoring scale unit. The extracorporeal elastic band unit is used for a silicone-based adjustable pressure band with a pressure range of 5-20kPa to assist in maintaining the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of <1V, releasing low-frequency pulses to promote fat cell metabolism. The deformation monitoring scale unit is used for a three-dimensional grid patch marked with a biocompatible dye to visually evaluate the degree of deformation with an accuracy of ±1mm.

[0012] The present invention provides an elastic fat filling and body shaping system. It has the following beneficial effects:

[0013] 1. This elastic fat filling and shaping system integrates a fat pretreatment module, an elastic support module, a dynamic injection module, a biological fixation module, a degradation regulation module and a postoperative shaping module, making the operation of the elastic fat filling and shaping system easier, and can better adapt to individual differences, thereby improving the survival rate and shaping effect of fat transplantation.

[0014] 2. This elastic fat filling and shaping system is equipped with a fat pretreatment module. The multi-stage centrifugal separation unit in the fat pretreatment module can effectively screen out highly active fat cells, providing high-quality fat tissue for subsequent steps. The cell activation unit activates cell metabolic activity through a low-temperature mixing chamber, further improving the survival rate of fat cells. The viscoelasticity adjustment unit pre-loads temperature-sensitive sodium alginate gel through the syringe to adjust the rheological properties of fat tissue, making it more suitable for injection and shaping needs.

[0015] 3. This elastic fat filling and shaping system is equipped with an elastic support module. The shape memory core layer unit of the elastic support module can deform in response to body temperature, and the preset curvature matches the target area, providing stable support for fat transplantation. The elastic fiber woven layer unit adopts a three-dimensional woven mesh structure to improve the elasticity and toughness of the support module. The surface micro-groove structure unit can guide the orderly arrangement of fat cells, further improving the shaping effect.

[0016] 4. This elastic fat filling and shaping system can simultaneously deliver fat tissue and degradable microspheres through a coaxial dual-channel needle unit equipped with a dynamic injection module, achieving uniform distribution of fat tissue. The pressure feedback unit can monitor the injection resistance in real time to prevent overfilling, ensuring the safety and effectiveness of the injection process. The multi-directional diversion head unit can achieve radial uniform distribution, further improving the shaping effect.

[0017] 5. This elastic fat filling and shaping system is equipped with a biological fixation module and a degradation regulation module. The photocross-linking anchoring unit, magnetic response positioning unit and microneedle array unit in the biological fixation module can fix the fat tissue from different angles, thereby improving the stability and survival rate of fat transplantation. The degradation regulation module regulates the degradation rate of fat transplantation through the pH-sensitive sustained-release layer unit, pore gradient structure unit and enzyme cleavage response unit, so that it better matches the tissue regeneration process and improves the durability of the shaping effect. In addition, through the postoperative shaping module, the in vitro elastic band unit, microcurrent stimulation unit and deformation monitoring scale unit in the postoperative shaping module can assist in maintaining the filling shape from different angles, promote fat cell metabolism, and evaluate the degree of deformation, providing strong support for postoperative recovery and effect evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a system module diagram of the present invention. DETAILED DESCRIPTION

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "inner," "outer," and "side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention according to specific circumstances.

[0024] 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.

[0025] Example 1: An elastic fat filling and shaping system, such as Figure 1As shown, it includes a fat pretreatment module, an elastic support module, a dynamic injection module, a biological fixation module, a degradation regulation module and a postoperative shaping module. The fat pretreatment module includes a multi-stage centrifugal separation unit, a cell activation unit and a viscoelasticity adjustment unit. The multi-stage centrifugal separation unit adopts a gradient centrifugation device and a fat cell screening membrane to separate highly active fat cells with a particle size of >100μm. The cell activation unit integrates a low-temperature mixing chamber of fat cells and platelet-rich plasma PRP to activate cell metabolic activity. The viscoelasticity adjustment unit preloads temperature-sensitive sodium alginate gel through a syringe to adjust the rheological properties of adipose tissue with a viscosity range of 50-200Pa·s. The elastic support module comprises a shape-memory core unit, an elastic fiber braid unit, and a surface microgroove structure unit. The shape-memory core unit is made of polycaprolactone and polyurethane copolymer and deforms in response to body temperature, with a deformation rate of ≥80% and a preset curvature to match the target area. The elastic fiber braid unit utilizes a three-dimensional woven polyester mesh wrapped in polydimethylsiloxane (PDMS) with a pore size of 200-400μm. The surface microgroove structure unit features laser-engraved directional grooves with a depth of 50-150μm, guiding the orderly arrangement of fat cells. The dynamic injection module comprises a coaxial dual-channel needle unit, a pressure feedback unit, and a multi-directional diverter unit. The coaxial dual-channel needle unit delivers fat tissue with an inner layer of 1.2mm diameter and releases biodegradable microspheres with a diameter of 50-200μm with an outer layer of 2.0mm diameter. The pressure feedback unit uses a micro-piezoelectric sensor with an accuracy of ±0.1N to monitor injection resistance in real time to prevent overfilling. The multi-directional diverter unit features a rotatable injection head with a bifurcation angle of 15°-60°, achieving radial and uniform distribution. The biological fixation module includes a photocross-linking anchoring unit, a magnetic response positioning unit and a microneedle array unit. The photocross-linking anchoring unit uses a photocurable coating of methacrylated gelatin GelMA, and a 405nm light source triggers in situ gelation. The magnetic response positioning unit is used to embed ferroferric oxide nanoparticles in the stent, and an external magnetic field guides precise positioning. The microneedle array unit uses bioabsorbable microneedles with a length of 0.5-1.2mm to penetrate the surrounding tissue to provide initial mechanical fixation. The degradation regulation module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit and an enzyme cleavage response unit. The pH-sensitive sustained-release layer unit integrates a lipase inhibitor wrapped in polylactic acid-glycolic acid copolymer PLGA, which is released in response to the inflammatory environment. The pore gradient structure unit is used to adjust the porosity gradient of the stent from the core to the surface from 50% to 85%, controlling the degradation rate to match tissue regeneration. The enzyme cleavage response unit is used to modify the stent connection bond with collagen-specific enzyme cleavage sites to achieve targeted degradation.The postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit, and a deformation monitoring scale unit. The extracorporeal elastic band unit is a silicone-based adjustable pressure band with a pressure range of 5-20kPa, which helps maintain the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of less than 1V, releasing low-frequency pulses to promote fat cell metabolism. The deformation monitoring scale unit is used for three-dimensional mesh patches labeled with biocompatible dyes, and the degree of deformation is visually assessed with an accuracy of ±1mm. By integrating the fat pretreatment module, elastic support module, dynamic injection module, biological fixation module, degradation regulation module, and postoperative body shaping module, the elastic fat filling and body shaping system is easier to operate and can better adapt to individual differences, improving the survival rate and body shaping effect of fat transplantation.

[0026] Example 2: Based on Example 1, Figure 1As shown, the elastic support module comprises a shape-memory core layer unit, an elastic fiber braided layer unit, and a surface microgroove structure unit. The shape-memory core layer unit is made of polycaprolactone and polyurethane copolymer and deforms in response to body temperature, with a deformation rate of ≥80% and a preset curvature matching the target area. The elastic fiber braided layer unit utilizes a three-dimensional woven polyester mesh wrapped in polydimethylsiloxane (PDMS) with a pore size of 200-400μm. The surface microgroove structure unit features laser-engraved directional grooves with a depth of 50-150μm, guiding the orderly arrangement of fat cells. The dynamic injection module comprises a coaxial dual-channel needle unit, a pressure feedback unit, and a multi-directional diverter unit. The coaxial dual-channel needle unit is used to deliver fat tissue with an inner layer of 1.2mm diameter and release biodegradable microspheres with a diameter of 50-200μm with an outer layer of 2.0mm diameter. The pressure feedback unit uses a micro-piezoelectric sensor with an accuracy of ±0.1N to monitor injection resistance in real time to prevent overfilling. The multi-directional diverter unit features a rotatable injection head with a bifurcation angle of 15°-60°, achieving radial and uniform distribution. The biological fixation module includes a photocross-linking anchoring unit, a magnetic response positioning unit and a microneedle array unit. The photocross-linking anchoring unit uses a photocurable coating of methacrylated gelatin GelMA, and a 405nm light source triggers in situ gelation. The magnetic response positioning unit is used to embed ferroferric oxide nanoparticles in the stent, and an external magnetic field guides precise positioning. The microneedle array unit uses bioabsorbable microneedles with a length of 0.5-1.2mm to penetrate the surrounding tissue to provide initial mechanical fixation. The degradation regulation module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit and an enzyme cleavage response unit. The pH-sensitive sustained-release layer unit integrates a lipase inhibitor wrapped in polylactic acid-glycolic acid copolymer PLGA, which is released in response to the inflammatory environment. The pore gradient structure unit is used to adjust the porosity gradient of the stent from the core to the surface from 50% to 85%, controlling the degradation rate to match tissue regeneration. The enzyme cleavage response unit is used to modify the stent connection bond with collagen-specific enzyme cleavage sites to achieve targeted degradation. The postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit, and a deformation monitoring scale unit. The extracorporeal elastic band unit is a silicone-based adjustable pressure band with a pressure range of 5-20kPa, which helps maintain the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of <1V, releasing low-frequency pulses to promote fat cell metabolism. The deformation monitoring scale unit is used for three-dimensional mesh patches labeled with biocompatible dyes to visually assess the degree of deformation with an accuracy of ±1mm. By setting up a fat pretreatment module, the multi-stage centrifugal separation unit in the fat pretreatment module can effectively screen out highly active fat cells, providing high-quality fat tissue for subsequent steps. The cell activation unit activates cell metabolic activity through a low-temperature mixing chamber, further improving the survival rate of fat cells. The viscoelasticity adjustment unit preloads a syringe with temperature-sensitive sodium alginate gel to adjust the rheological properties of the fat tissue, making it more suitable for injection and body shaping needs.

[0027] Example 3: Based on Example 1 and Example 2, Figure 1 As shown, the dynamic injection module includes a coaxial dual-channel needle tube unit, a pressure feedback unit and a multi-directional diversion head unit. The coaxial dual-channel needle tube unit is used to deliver fat tissue with an inner diameter of 1.2mm and release degradable microspheres with an outer diameter of 2.0mm with a particle size of 50-200μm. The pressure feedback unit is based on a micro piezoelectric sensor with an accuracy of ±0.1N, which monitors the injection resistance in real time to prevent overfilling. The multi-directional diversion head unit is used for a rotatable injection head with a bifurcation angle of 15°-60° to achieve radial uniform distribution. The biological fixation module includes a photocross-linking anchoring unit, a magnetic response positioning unit and a microneedle array unit. The photocross-linking anchoring unit uses a photocurable coating of methacrylated gelatin GelMA, and a 405nm light source triggers in situ gelation. The magnetic response positioning unit is used to embed ferroferric oxide nanoparticles in the stent, and an external magnetic field guides precise positioning. The microneedle array unit uses bioabsorbable microneedles with a length of 0.5-1.2mm to penetrate the surrounding tissue to provide initial mechanical fixation. The degradation regulation module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit and an enzyme cleavage response unit. The pH-sensitive sustained-release layer unit integrates a lipase inhibitor wrapped in polylactic acid-glycolic acid copolymer PLGA, which is released in response to the inflammatory environment. The pore gradient structure unit is used to adjust the porosity gradient of the stent from the core to the surface from 50% to 85%, controlling the degradation rate to match tissue regeneration. The enzyme cleavage response unit is used to modify the stent connection bond with collagen-specific enzyme cleavage sites to achieve targeted degradation. The postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit, and a deformation monitoring scale unit. The extracorporeal elastic band unit is used for a silicone-based adjustable pressure band with a pressure range of 5-20kPa to assist in maintaining the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of <1V, releasing low-frequency pulses to promote fat cell metabolism. The deformation monitoring scale unit is used for a three-dimensional mesh patch labeled with a biocompatible dye, and the degree of deformation is visually assessed with an accuracy of ±1mm. By setting up an elastic support module, the shape memory core layer unit of the elastic support module can deform in response to body temperature, with a preset curvature matching the target area, providing stable support for fat transplantation. The elastic fiber woven layer unit adopts a three-dimensional woven mesh structure to improve the elasticity and toughness of the support module. The surface microgroove structure unit can guide the orderly arrangement of fat cells, further improving the shaping effect.

[0028] Example 4: Based on Example 1, Example 2 and Example 3, Figure 1As shown, the biofixation module includes a photocrosslinking anchoring unit, a magnetically responsive positioning unit, and a microneedle array unit. The photocrosslinking anchoring unit utilizes a photocurable coating of methacrylated gelatin (GelMA), which triggers in situ gelation with a 405nm light source. The magnetically responsive positioning unit embeds ferroferric oxide nanoparticles within the stent, guided by an external magnetic field for precise positioning. The microneedle array unit uses bioresorbable microneedles 0.5-1.2mm in length to penetrate the surrounding tissue and provide initial mechanical fixation. The degradation control module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit, and an enzyme-responsive unit. The pH-sensitive sustained-release layer integrates a lipase inhibitor coated with poly(lactic-co-glycolic acid) copolymer (PLGA) for release in response to inflammatory conditions. The pore gradient structure unit creates a porosity gradient from the core to the surface of the stent, from 50% to 85%, controlling degradation rate to match tissue regeneration. The enzyme-responsive unit utilizes a stent connector modified with collagen-specific enzyme cleavage sites to achieve targeted degradation. The postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit, and a deformation monitoring scale unit. The extracorporeal elastic band unit is used for a silicone-based adjustable pressure band with a pressure range of 5-20kPa to assist in maintaining the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of less than 1V, releasing low-frequency pulses to promote fat cell metabolism. The deformation monitoring scale unit is used for a three-dimensional mesh patch labeled with a biocompatible dye, and the degree of deformation is visually assessed with an accuracy of ±1mm. The coaxial dual-channel needle unit equipped with a dynamic injection module can simultaneously deliver adipose tissue and degradable microspheres, achieving uniform distribution of adipose tissue. The pressure feedback unit can monitor the injection resistance in real time to prevent overfilling, ensuring the safety and effectiveness of the injection process. The multi-directional diversion head unit can achieve radial uniform distribution, further improving the shaping effect.

[0029] Example 5: Based on Example 1, Example 2, Example 3 and Example 4, Figure 1As shown, the degradation control module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit, and an enzyme cleavage response unit. The pH-sensitive sustained-release layer unit integrates a lipase inhibitor encapsulated in poly(lactic-co-glycolic acid) copolymer (PLGA) and releases it in response to the inflammatory environment. The pore gradient structure unit is used to adjust the porosity gradient from the core to the surface of the scaffold from 50% to 85%, controlling the degradation rate to match tissue regeneration. The enzyme cleavage response unit is used to modify the scaffold connector with collagen-specific enzyme cleavage sites to achieve targeted degradation. The postoperative shaping module includes an in vitro elastic band unit, a microcurrent stimulation unit, and a deformation monitoring scale unit. The in vitro elastic band unit is used to provide a silicone-based adjustable pressure band with a pressure range of 5-20kPa to help maintain the filling shape. The microcurrent stimulation unit uses an implantable flexible electrode with an operating voltage of less than 1V to release low-frequency pulses to promote adipocyte metabolism. The deformation monitoring scale unit uses a three-dimensional mesh patch labeled with a biocompatible dye to visually assess the degree of deformation with an accuracy of ±1mm. By setting up a biological fixation module and a degradation regulation module, the photocross-linking anchoring unit, magnetic response positioning unit and microneedle array unit in the biological fixation module can achieve the fixation of fat tissue from different angles, thereby improving the stability and survival rate of fat transplantation. The degradation regulation module realizes the regulation of the degradation rate after fat transplantation through the pH-sensitive sustained-release layer unit, pore gradient structure unit and enzyme cleavage response unit, so that it better matches the tissue regeneration process and improves the durability of the shaping effect. In addition, through the postoperative shaping module, the in vitro elastic band unit, microcurrent stimulation unit and deformation monitoring scale unit in the postoperative shaping module can assist in maintaining the filling morphology from different angles, promote fat cell metabolism, and evaluate the degree of deformation, providing strong support for postoperative recovery and effect evaluation.

[0030] The system's working principle is as follows: First, the system uses a fat pretreatment module to perform multi-stage centrifugation, cell activation, and viscoelasticity regulation on adipose tissue to obtain highly active adipocytes and adjust their rheological properties. Subsequently, the elastic support module provides a temperature-responsive support structure that adapts to the preset curvature of the target area. A braided elastic fiber layer and surface microgrooves guide the orderly alignment of adipocytes. The dynamic injection module utilizes a coaxial dual-channel needle unit to deliver adipose tissue and release biodegradable microspheres, while simultaneously monitoring injection resistance in real time to prevent overfilling. A multidirectional diversion head unit achieves radially uniform distribution. The biofixation module utilizes photo-crosslinking anchoring, magnetically responsive positioning, and a microneedle array to provide initial mechanical fixation. The degradation control module utilizes a pH-sensitive sustained-release layer, a pore gradient structure, and an enzymatic cleavage-responsive unit to control degradation rates and optimize tissue regeneration. Finally, the postoperative body shaping module utilizes an in vitro elastic band, microcurrent stimulation, and a deformation monitoring scale to assist in maintaining the implanted morphology, promote adipocyte metabolism, and assess the degree of deformation. These modules work together to achieve precise control and optimized results for elastic fat grafting and body shaping.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An elastic fat filling and shaping system, including a fat pretreatment module, an elastic support module, a dynamic injection module, a biological fixation module, a degradation regulation module and a postoperative shaping module. The fat pretreatment module includes a multi-stage centrifugal separation unit, a cell activation unit and a viscoelasticity regulation unit.

2. The elastic fat filling and body shaping system according to claim 1, characterized in that: The elastic support module includes a shape memory core layer unit, an elastic fiber braided layer unit and a surface micro-groove structure unit.

3. The elastic fat filling and body shaping system according to claim 1, characterized in that: The dynamic injection module includes a coaxial double-channel needle tube unit, a pressure feedback unit and a multi-directional diversion head unit.

4. The elastic fat filling and body shaping system according to claim 1, characterized in that: The biological fixation module includes a photo-crosslinking anchoring unit, a magnetic response positioning unit and a microneedle array unit.

5. The elastic fat filling and body shaping system according to claim 1, characterized in that: The degradation regulation module includes a pH-sensitive sustained-release layer unit, a pore gradient structure unit and an enzyme cleavage response unit.

6. The elastic fat filling and body shaping system according to claim 1, characterized in that: The postoperative body shaping module includes an extracorporeal elastic band unit, a microcurrent stimulation unit and a deformation monitoring scale unit.

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