Plasma biomaterial surface treatment apparatus and method

Abstract

The application discloses a kind of plasma biomaterial surface treatment equipment, it is related to the technical field of biomaterial processing, it includes: vacuum box, the vacuum box is fixedly installed with plasma generator, surround air injection component and gas feeding component, in addition, the outside of vacuum box is also equipped with modified material supplement component;The inside of plasma generator is provided with bottom disc, and the clamping device for biomaterial is arranged on the bottom disc;Surround air injection component includes a group of planetary gear sets and air induction groove installed below planetary gear set, a plurality of air induction fans are also installed in the inside of air induction groove, to facilitate the airflow of plasma and air to be sprayed to the surface of biomaterial;The air induction groove is installed by the cooperation of planetary gear set in the application, can drive multiple air induction grooves to rotate around the center point, and air induction groove is installed with the airflow of plasma and air mixture flow, to facilitate the plasma to be sprayed to the surface of biomaterial, and modified treatment is carried out.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biomaterial processing, and more particularly to a plasma biomaterial surface treatment device and method thereof. BACKGROUND

[0002] Biomaterials are a special class of materials that are used in contact with biological tissues for the purpose of treating, enhancing or replacing biological tissues. They have a wide range of applications in the fields of medical devices, drug delivery, tissue engineering, etc. Biomaterials are generally required to have biocompatibility, mechanical properties, degradation properties, and possibly biological activity. The treatment of plasma can change the chemical composition of the surface of the biomaterial, introducing new functional groups such as hydroxyl, carboxyl, etc., thereby improving the biocompatibility of the material. This modification can enhance the interaction between the material and the biological tissue.

[0003] In practical applications, plasma is usually mixed with air, and biomaterials are directly placed in the mixture of plasma and air. Although the motion of molecules can cause high-energy particles in the plasma to collide with the surface of the biomaterial, the process is relatively slow and requires long-term contact, resulting in low processing efficiency. Based on the above problems, we provide a plasma biomaterial surface treatment device and method thereof. SUMMARY

[0004] To solve the problems raised in the background art, the present application provides a plasma biomaterial surface treatment device.

[0005] The plasma biomaterial surface treatment device provided by the present application adopts the following technical scheme:

[0006] A plasma biomaterial surface treatment device comprises a vacuum box, wherein an plasma generator, a surrounding air injection component and an air feeding component are fixedly installed in the vacuum box, and a modified material supplementing component is additionally assembled on the outside of the vacuum box.

[0007] The inside of the plasma generator is provided with a chassis, and a clamping device for biomaterials is arranged on the chassis;

[0008] The surrounding air injection component comprises a set of planetary gear sets and an air induction groove installed below the planetary gear sets, the air induction groove is provided with a converging air outlet structure on the side surface facing the center at the front and rear, and a plurality of air induction fans are additionally installed in the air induction groove to facilitate the air flow of plasma and air to be sprayed towards the surface of the biomaterials;

[0009] The modified material supplementing component comprises a filler box and a spiral spray pipe installed on the filler box, the spiral spray pipe is arranged in the plasma generator, and a plurality of spray holes are formed in the side surface facing the center of the spiral spray pipe to facilitate the supplement of modified materials into the vacuum box and to enhance the performance of the biomaterials.

[0010] The air supply component comprises two air supply boxes, air inlets of the air supply boxes face the center of the plasma generator, facilitating air supply to the inside of the plasma generator;

[0011] The clamping device comprises a vertical shaft, a sleeve, and a pressing plate mounted on the sleeve, a gear disc is further mounted at the bottom of the vertical shaft, the gear disc is rotatably mounted at the center of the bottom plate, a pressing head is further sleeved on the end of the pressing plate through a bearing, a pad is installed in the center of the gear disc, and the pad is fixedly connected to the bottom plate, a vertical screw is further connected to the top of the vertical shaft, a butterfly nut is threadedly sleeved on the vertical screw, a transmission gear is further arranged on the side surface of the gear, and a driving motor is mounted on the transmission gear.

[0012] Preferably, the planetary gear set comprises a central gear and three ring gears meshing with the central gear, the ring gear further comprises a positioning ring, the central gear is arranged at the center of the positioning ring, an annular rack is further arranged on the inner wall of the positioning ring, the three ring gears are arranged to roll on the annular rack, the central shafts of the three ring gears are connected to the same tripod, the center of the tripod is sleeved on the central shaft of the central gear, a strip-shaped frame is further sleeved on the central shaft of the central gear, both ends of the strip-shaped frame are fixed to the positioning ring, and a working motor is further mounted on the top end of the central shaft of the central gear.

[0013] Preferably, a horizontal rail is further mounted on the bottom end of the central shaft of the ring gear, a transmission screw is parallelly mounted in the horizontal rail, an adjusting motor is mounted on the end of the transmission screw, the adjusting motor is mounted on the horizontal rail through a motor frame, an adjusting sliding block is threadedly sleeved on the transmission screw, the adjusting sliding block is slidingly mounted in the horizontal rail, and the air guiding groove is fixedly mounted on the bottom of the adjusting sliding block.

[0014] Preferably, a power shaft is further rotatably mounted in the filler box, a helical blade is helically upward sleeved on the power shaft, the top end of the helical blade extends to the position of the inlet of the helical nozzle, and an electromagnetic valve is further mounted at the position of the inlet of the helical nozzle.

[0015] Preferably, the top of the power shaft extends to above the filler box, a belt pulley is sleeved on the top of the power shaft and the top end of the central shaft of the central gear, the same belt is drivingly mounted on the two belt pulleys, a protective shell extending to above the filler box is further mounted on the side of the vacuum box, and the belt pulley and the belt are arranged in the protective shell.

[0016] Preferably, the plasma generator comprises two arc-shaped electrode plates, the two arc-shaped electrode plates are respectively connected to the positive and negative poles of the built-in power supply in the vacuum box, the end portions of the two arc-shaped electrode plates are provided with air slots, and the two air supply boxes are respectively mounted in the air slots.

[0017] Preferably, the air inlet of the air supply box is provided with a filter screen, and the side away from the filter screen in the air supply box is provided with a bevel abutting on the edge of the filter screen, and the back of the air supply box is further provided with a back plate, the back plate is provided with a plurality of air outlets, and the back of the back plate is connected with an air supply pipe, and the end of the air supply pipe extends out of the vacuum box and is further connected with a blower.

[0018] A kind of plasma biomaterial surface treatment equipment to the method for biomaterial surface treatment, comprising the following steps:

[0019] S1: open the vacuum box, loosen the butterfly nut, push the pressing plate to move upwards, then place the biomaterial between the pressure head and the pad, tighten the butterfly nut to press the pressing plate, then close the vacuum box to keep sealed state;

[0020] S2: start the adjusting motor, the adjusting motor cooperates with the transmission screw rod to push the adjusting slider to slide, change the position of the air guide groove, and start the internal air guide fan, and start the working motor at the same time, the working motor drives the planetary gear set to run, which will drive the air guide groove to move around the biomaterial, and the mixture of plasma and air in the vacuum box is sprayed to the surface of the biomaterial for modification treatment;

[0021] S3: at the same time, the blower needs to be started, which will transport air into the air supply box, and the air will be inclined and sent into the vacuum box and spiral rotating under the guidance of the bevel in the air supply box, facilitating the formation of flowing air flow, and the rapid mixing of air and plasma.

[0022] S4: at the same time, open the electromagnetic valve on the spiral spray pipe, the modified material in the filler box will enter the vacuum box through the spiral spray pipe, and can be mixed again with the air flow of the plasma and air mixture under the cooperation of the air guide groove and sprayed to the surface of the biomaterial for modification treatment, and different modified materials can be selected to be loaded into the filler box according to the different required properties.

[0023] In summary, the present application has the following beneficial technical effects:

[0024] 1、The present application installs the air guide groove by cooperating with the planetary gear set, which can drive multiple air guide grooves to rotate around the center point, and the air guide groove is provided with an air flow for driving the mixture of plasma and air to flow, which facilitates the spraying of plasma to the surface of the biomaterial for modification treatment.

[0025] 2、The present application is provided with modified materials in the filler box, which can select different modified materials according to the required properties, and can release the modified materials into the vacuum box under the cooperation of the spiral spray pipe, and after further mixing with the plasma and air mixture, can be sprayed to the surface of the biomaterial, thereby enhancing the specific performance of the biomaterial and being more convenient to use.

[0026] 3、The inclined edge for guiding the inclined flow of air is arranged in the air feeding tank, air can rotate spirally after entering the vacuum tank, can push the plasma to form air flow with air, accelerate the mixing degree, conveniently ensure that the plasma and air are mixed uniformly and then sprayed to the surface of the biological material to carry out modification treatment.

[0027] 4、The vertical screw and the butterfly nut can extrude the pressing plate downward, the extrusion effect of the pressing head on the pressing plate can conveniently fix the biological material, and the biological material is also convenient to take and place. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the structure schematic diagram of the whole application;

[0029] Figure 2 It is the sectional structure schematic diagram of the vacuum tank;

[0030] Figure 3 It is the schematic diagram of the internal structure of the vacuum tank;

[0031] Figure 4 It is the schematic diagram of the wrapped part structure of the electrode plate;

[0032] Figure 5 It is the sectional structure schematic diagram of the filler tank;

[0033] Figure 6 It is the top view schematic diagram of the surrounding air injection component;

[0034] Figure 7 It is the bottom view schematic diagram of the surrounding air injection component;

[0035] Figure 8 It is the structure schematic diagram of the clamping device;

[0036] Figure 9 It is the split schematic diagram of the air feeding tank structure.

[0037] Explanation of reference numerals: 1, vacuum box; 2, plasma generator; 201, base plate; 202, gear plate; 203, vertical shaft; 204, sleeve; 205, pressing plate; 206, pressing head; 207, vertical screw; 208, butterfly nut; 209, transmission gear; 210, driving motor; 3, surrounding air injection component; 301, positioning ring; 302, central gear; 303, surrounding gear; 304, annular rack; 305, air guide groove; 3051, air guide fan; 3052, cross rail; 3053, adjusting slider; 3054, transmission screw; 3055, adjusting motor; 306, working motor; 4, modified material supplement component; 401, filler box; 4011, power shaft; 4012, spiral blade; 402, spiral nozzle; 4021, injection hole; 4022, electromagnetic valve; 5, air feeding component; 501, air feeding box; 502, air filter net; 503, back plate; 504, air feeding pipe; 505, air blower. DETAILED DESCRIPTION

[0038] The application will be further described below with reference to the accompanying drawings. Figures 1 to 9 The application will be further described below with reference to the accompanying drawings.

[0039] It should be noted that the drawings are schematic and not drawn to scale. The relative dimensions and proportions of the parts shown in the drawings have been exaggerated or reduced in size for the sake of clarity and convenience in the drawings, and any dimensions are merely exemplary and not limiting. In addition, the same reference numerals are used for the same structures, elements or parts appearing in two or more drawings to represent similar features.

[0040] Example 1

[0041] The application discloses a kind of plasma biological material surface treatment equipment. Refer to Figure 1 、 2The utility model provides a kind of plasma biomaterial surface treatment equipment shown in 4,8, including vacuum box 1, vacuum box 1 is fixedly installed with plasma generator 2, and plasma generator 2 is made of two arc electrode plates, two arc electrode plates are connected with the positive and negative poles of vacuum box 1 built-in power supply respectively, and the end portion of the butt joint of two arc electrode plates is provided with a hollow groove, the inside of plasma generator 2 is provided with bottom disc 201, clamping device to biological material is arranged on bottom disc 201, clamping device has vertical shaft 203, sleeve pipe 204, pressing plate 205 installed on sleeve pipe 204, the bottom of vertical shaft 203 is further provided with gear disc 202, gear disc 202 is rotatably installed at the center of bottom disc 201, the end portion of pressing plate 205 is further provided with pressure head 206 by bearing, pad disc is installed in the center of gear disc 202 and is excavated, pad disc is fixedly connected on bottom disc 201, vertical screw rod 207 is further connected on the top of vertical shaft 203, and butterfly nut 208 is threadedly sleeved on vertical screw rod 207, transmission gear 209 is further meshed and arranged on the side of gear disc 202, and driving motor 210 is installed on transmission gear 209, when needed, butterfly nut 208 can be loosened first, pressing plate 205 is pushed to move upwards, at this time, biological material can be placed between pad disc and pressure head 206, then butterfly nut 208 is tightened again, pressing plate 205 and pressure head 206 can be pushed to extrude and fix biological material, and the area of contact point is small, so that plasma modified material can be fully covered on the surface of biological material;

[0042] Referring to Figure 3 、 4, 6, 7, the vacuum box 1 is also installed around the jet component 3, the jet component 3 includes a set of planetary gear set and the air slot 305 installed below the planetary gear set, the air slot 305 is through from front to back and is provided with the contraction air port structure on the side surface facing the center, a plurality of air flow fans 3051 are also installed in the air slot 305, which facilitates the plasma and air flow to be sprayed to the biological material surface, the planetary gear set includes a center gear 302 and three surrounding gears 303 meshing and rolling on the center gear 302, the jet component 3 also includes a positioning ring 301, the center gear 302 is arranged at the center of the positioning ring 301, and the inner wall of the positioning ring 301 is also provided with an annular rack 304, the three surrounding gears 303 are all meshed and rolled on the annular rack 304, and the center shafts of the three surrounding gears 303 are connected to the same tripod, the center of the tripod is sleeved on the center shaft of the center gear 302, the center shaft of the center gear 302 is also sleeved with a strip-shaped frame, both ends of the strip-shaped frame are fixed on the positioning ring 301, a working motor 306 is also installed on the top end of the center shaft of the center gear 302, a cross rail 3052 is also installed on the bottom end of the center shaft of the surrounding gear 303, a transmission screw 3054 is parallelly installed in the cross rail 3052, an adjusting motor 3055 is installed on the end of the transmission screw 3054, the adjusting motor 3055 is installed on the cross rail 3052 through a motor frame, an adjusting sliding block 3053 is threadedly sleeved on the transmission screw 3054, the adjusting sliding block 3053 is slidingly installed in the cross rail 3052, and the air slot 305 is fixedly installed at the bottom of the adjusting sliding block 3053, during work, under the cooperation of the working motor 306, the center gear 302 can be driven to rotate, and due to the cooperation of the surrounding gear 303, the center gear 302 and the annular rack 304, the surrounding gear 303 can keep rolling around the center gear 302, at this time, the air slot 305 arranged below can also rotate around the center point, the air flow fans 3051 in the air slot 305 can blow air to the biological material surface when started, which facilitates the modification treatment of the biological material surface, in addition, the distance between the air slot 305 and the biological material can be adaptively changed according to the volume of the biological material, which facilitates the plasma to uniformly cover the biological material surface;

[0043] Example two

[0044] Reference Figure 2 、 3, 4, 5, the outer side of the vacuum box 1 is also equipped with a modified material supplement component 4, the modified material supplement component 4 includes a filler box 401 and a spiral nozzle 402 installed on the filler box 401, the spiral nozzle 402 is arranged in the plasma generator 2, and a plurality of spray holes 4021 are formed on the side surface of the spiral nozzle 402 facing the center, which facilitates the supplement of modified materials into the vacuum box 1 and enhances the performance of biological materials, and a power shaft 4011 is rotatably installed in the filler box 401, a spiral blade 4012 is spirally upwardly sleeved on the power shaft 4011, the top end of the spiral blade 4012 extends to the position of the inlet of the spiral nozzle 402, and an electromagnetic valve 4022 is installed at the inlet position of the spiral nozzle 402, the top of the power shaft 4011 extends through to above the filler box 401, and a belt pulley is sleeved on the top end of the center shaft of the center gear 302 and the power shaft 4011, the same belt is drivingly installed on the two belt pulleys, a protective shell extending above the filler box 401 is installed on the side surface of the vacuum box 1, and the belt pulley and the belt are arranged inside the protective shell. In addition, different modified materials can be selected and loaded in the filler box 401 according to different characteristics, such as filling oxygen and nitrogen, which can increase the hydrophilicity of the biological material surface or be used for protein fixation, filling organosilicon compounds, which can be mixed with the gas in the plasma to introduce silicon-based functional groups on the surface of the biological material to enhance the bonding force with silicon-based materials, etc.

[0045] Example three

[0046] Referring to Figure 2 , 3 , 9, the vacuum box 1 is also provided with a gas feeding component 5, the gas feeding component 5 includes two gas feeding boxes 501, the air inlets of the gas feeding boxes 501 face the center of the plasma generator 2, which facilitates the supplement of air into the interior thereof, the two gas feeding boxes 501 are respectively installed in the two empty grooves at the ends of the arc-shaped electrode plates, a filter screen 502 is installed in the air inlet of the gas feeding box 501, and an inclined edge is arranged on the side of the gas feeding box 501 away from the filter screen 502 and abuts against the edge of the filter screen 502, a back plate 503 is also installed on the back of the gas feeding box 501, the back plate 503 is provided with a plurality of air outlets, and a blower pipe 504 is connected to the back of the back plate 503, the end of the blower pipe 504 extends to the outside of the vacuum box 1 and is also provided with a blower 505. In addition, in order to facilitate the rapid mixing of the plasma generated in the plasma generator 2 with air to form an air flow, an inclined edge for guiding the oblique blowing of air is arranged on the inner wall of the gas feeding box 501. After the obliquely blown air enters the plasma generator 2, it can rotate spirally, so as to rapidly mix with the plasma generated in the interior thereof, thereby facilitating the uniform mixing of the plasma with air and then spraying the mixed air onto the surface of the biological material for modification treatment.

[0047] A method for treating the surface of biological materials by using a plasma biological material surface treatment equipment, comprising the following steps:

[0048] S1: open the vacuum box 1, unscrew the nut 208, push the pressing plate 205 upwards, then place the biological material between the pressing head 206 and the pad, tighten the nut 208 to press the pressing plate 205, then close the vacuum box 1 and keep it sealed;

[0049] S2: start the adjusting motor 3055, adjust the motor 3055 to cooperate with the transmission screw rod 3054 to push the adjusting sliding block 3053 to slide, change the position of the air guiding groove 305, and start the internal air guiding fan 3051, and start the working motor 306, the working motor 306 drives the planetary gear set to rotate, which drives the air guiding groove 305 to move around the biological material, and sprays the mixture of plasma and air in the vacuum box 1 to the surface of the biological material for modification treatment;

[0050] S3: at the same time, the air blower 505 needs to be started, which will convey air into the air conveying box 501, and the air will be inclined into the vacuum box 1 and rotate spirally under the guidance of the inclined edge in the air conveying box 501, so as to form a flowing air current and quickly mix air and plasma;

[0051] S4: at the same time, open the electromagnetic valve 4022 on the spiral spray pipe 402, the modified material in the filler box 401 will enter the vacuum box 1 through the spiral spray pipe 402, and can be mixed again with the air and plasma mixture under the cooperation of the air guiding groove 305 and sprayed to the surface of the biological material for modification treatment, and different modified materials can be selected to be loaded into the filler box 401 according to different required properties.

[0052] The standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0053] The above shows and describes the basic principles, main features and advantages of the application. It should be understood by those skilled in the art that the application is not limited to the above examples, and the above examples and descriptions in the specification are only preferred examples of the application and do not limit the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the claimed application. The scope of protection of the application is defined by the appended claims and their equivalents.

Claims

1. A plasma biomaterial surface treatment apparatus, characterized by: Including vacuum box (1), the plasma generator (2) is fixedly installed in the vacuum box (1), and the air injection component (3) and the air supply component (5) are surrounded, in addition, the outside of vacuum box (1) is also equipped with modified material supplement component (4); The inside of plasma generator (2) is provided with a base plate (201), and the base plate (201) is provided with a clamping device for biological materials; The air injection component (3) includes a set of planetary gear sets and an air guide groove (305) installed below the planetary gear sets, the air guide groove (305) is through from front to back and is provided with a contracted air port structure on the side surface facing the center, and a plurality of air guide fans (3051) are installed in the air guide groove (305), which facilitates the air flow of plasma and air to be sprayed to the surface of biological materials; The planetary gear set includes a central gear (302) and three surrounding gears (303) meshing and rolling on the central gear (302), the air injection component (3) further includes a positioning ring (301), the central gear (302) is arranged at the center of the positioning ring (301), the inner wall of the positioning ring (301) is further provided with an annular rack (304), the three surrounding gears (303) are all meshed and rolled on the annular rack (304), and the central shafts of the three surrounding gears (303) are connected to the same tripod, the center of the tripod is sleeved on the central shaft of the central gear (302), a strip-shaped frame is further sleeved on the central shaft of the central gear (302), both ends of the strip-shaped frame are fixed on the positioning ring (301), and a working motor (306) is further installed on the top end of the central shaft of the central gear (302); A cross rail (3052) is further installed on the bottom end of the central shaft of the surrounding gear (303), a transmission screw rod (3054) is parallelly installed in the cross rail (3052), an adjusting motor (3055) is installed on the end of the transmission screw rod (3054), the adjusting motor (3055) is installed on the cross rail (3052) through a motor frame, an adjusting sliding block (3053) is threadedly sleeved on the transmission screw rod (3054), the adjusting sliding block (3053) is slidingly installed in the cross rail (3052), and the air guide groove (305) is fixedly installed at the bottom of the adjusting sliding block (3053); The modified material supplement component (4) includes a filler box (401) and a spiral jet pipe (402) installed on the filler box (401), the spiral jet pipe (402) is arranged in the plasma generator (2), a plurality of injection holes (4021) are formed in the side surface facing the center of the spiral jet pipe (402), which facilitates the supplement of modified materials in the vacuum box (1) and enhances the performance of biological materials; The air supply component (5) includes two air supply boxes (501), and the air ports of the air supply boxes (501) face the center of the plasma generator (2), which facilitates the supplement of air into the inside thereof; The plasma generator (2) is composed of two arc-shaped electrode plates, which are connected with the positive and negative poles of the built-in power supply in the vacuum box (1) respectively, and the end portions of the two arc-shaped electrode plates are provided with air slots, and two air supply boxes (501) are installed in the air slots respectively; The air supply box (501) is provided with a filter screen (502) in the air inlet, and the side of the air supply box (501) away from the filter screen (502) is provided with a bevel which is abutted on the edge of the filter screen (502), and the back of the air supply box (501) is further provided with a back plate (503), the back plate (503) is provided with a plurality of air outlets, and the back of the back plate (503) is connected with a air supply pipe (504), and the end of the air supply pipe (504) extends to the outside of the vacuum box (1) and is further abutted with a air blower (505); The clamping device comprises a vertical shaft (203), a sleeve (204) and a pressing plate (205) mounted on the sleeve (204), the bottom of the vertical shaft (203) is further provided with a gear disc (202), the gear disc (202) is rotatably mounted at the center of the base plate (201), the end of the pressing plate (205) is further provided with a pressure head (206) through a bearing, a pad is installed at the center of the gear disc (202), and the pad is fixedly connected to the base plate (201), the top of the vertical shaft (203) is further provided with a vertical screw (207), the vertical screw (207) is further provided with a butterfly nut (208), the side of the gear disc (202) is further provided with a transmission gear (209), and the transmission gear (209) is further provided with a driving motor (210); The power shaft (4011) is further provided with a spiral blade (4012) which is spirally sleeved on the power shaft (4011), the top end of the spiral blade (4012) extends to the position of the inlet of the spiral jet pipe (402), and the electromagnetic valve (4022) is further installed at the inlet position of the spiral jet pipe (402).

2. The apparatus according to claim 1, wherein: The top of the power shaft (4011) extends to the upper side of the filler box (401), and the top of the power shaft (4011) and the center shaft of the center gear (302) are both provided with a belt pulley, and the same belt is drivingly installed on the two belt pulleys, and a protective shell extending to the upper side of the filler box (401) is further installed on the side of the vacuum box (1), and the belt pulley and the belt are both arranged in the protective shell.

3. A method of surface treatment of a biomaterial with a plasma biomaterial surface treatment apparatus according to any one of claims 1 to 2, characterized in that: The method comprises the following steps: S1: open the vacuum box (1), loosen the butterfly nut (208), push the pressing plate (205) to move upward, then place the biological material between the pressure head (206) and the pad, tighten the butterfly nut (208) to press the pressing plate (205), and then close the vacuum box (1) to keep it in a sealed state; S2: start the adjusting motor (3055), the adjusting motor (3055) matches the transmission screw rod (3054) to push the adjusting sliding block (3053) to slide, changes the position of the air guiding groove (305), and starts the internal air guiding fan (3051), and simultaneously starts the working motor (306), when the working motor (306) pushes the planetary gear set to rotate, the air guiding groove (305) is pushed to move around the biological material, and the mixture of plasma and air in the vacuum box (1) is sprayed to the surface of the biological material to perform modification treatment; S3: simultaneously, the air blower (505) also needs to be started, the air blower (505) will convey air into the air conveying box (501), under the guiding action of the inclined edge in the air conveying box (501), the air will be obliquely sent into the vacuum box (1) and rotate spirally, so that the flowing air flow is formed, and the air and plasma are quickly mixed; S4: simultaneously, the electromagnetic valve (4022) on the spiral spray pipe (402) is opened, the modified material in the stuffing box (401) will enter the vacuum box (1) along with the spiral spray pipe (402), and under the cooperation of the air guiding groove (305), the air flow of the plasma and air mixture can be mixed again and sprayed to the surface of the biological material, so that the biological material is modified.

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