Plasma biological material surface treatment equipment and method thereof

Abstract

The invention discloses plasma biological material surface treatment equipment, and relates to the technical field of biological material treatment.The plasma biological material surface treatment equipment comprises a vacuum box, a plasma generator, a surrounding air injection component and an air supply component are fixedly installed in the vacuum box, and in addition, a modified material supplementing component is assembled on the outer side of the vacuum box; a base plate is arranged in the plasma generator, and a clamping device for a biological material is arranged on the base plate; the surrounding air injection part comprises a planetary gear set and an air entraining groove formed below the planetary gear set, a plurality of drainage fans are further installed in the air entraining groove, and airflow of plasma and air is conveniently pushed to be injected to the surface of the biological material; the air entraining grooves are installed through cooperation of the planetary gear sets, the multiple air entraining grooves can be pushed to rotate around the center point, the air flow pushing the plasma and air mixture to flow is installed in the air entraining grooves, and the plasma can be conveniently sprayed to the surface of the biological material for modification treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of biological material treatment, and more particularly to a plasma biological material surface treatment device and a method thereof. Background Art

[0002] Biomaterials refer to a special type of material that is used to contact biological tissues and is used to treat, enhance or replace biological tissues. They are widely used in medical devices, drug delivery, tissue engineering and other fields. Biomaterials usually need to have biocompatibility, mechanical properties, degradation properties and possible biological activity. Plasma treatment can change the chemical composition of the biomaterial surface and introduce new functional groups, such as hydroxyl and carboxyl groups, thereby improving the biocompatibility of the material. This modification can enhance the interaction between the material and biological tissues.

[0003] In practical applications, plasma is usually mixed with air, and biomaterials are directly placed in the mixture of plasma and air. Although the movement between molecules will cause high-energy particles in the plasma to collide and adhere to 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. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a plasma biological material surface treatment device.

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

[0006] A plasma biomaterial surface treatment device comprises: a vacuum box, in which a plasma generator, a surrounding jet component and a gas delivery component are fixedly installed; in addition, a modified material supplement component is also installed on the outside of the vacuum box:

[0007] A chassis is arranged inside the plasma generator, and a clamping device for the biological material is arranged on the chassis;

[0008] The surrounding jetting component includes a set of planetary gear sets and an air inlet groove installed below the planetary gear set. The air inlet groove runs through the front and back and a contraction air outlet structure is arranged on the side facing the center. A plurality of air inlet fans are also installed inside the air inlet groove to facilitate the airflow of plasma and air to spray toward the surface of the biological material.

[0009] The modified material replenishing component includes a stuffing box and a spiral nozzle installed on the stuffing box. The spiral nozzle is arranged in the plasma generator, and a plurality of nozzle holes are opened on the side of the spiral nozzle facing the center, so as to facilitate the replenishment of modified materials into the vacuum box and enhance the performance of the biomaterial.

[0010] The air supply component includes two air supply boxes, the air outlets of which face the center of the plasma generator to facilitate the replenishment of air into the interior;

[0011] Among them, the clamping device consists of a vertical shaft, a sleeve, and a pressure plate installed on the sleeve. A gear plate is also installed at the bottom of the vertical shaft, and the gear plate is rotatably installed at the center of the chassis. A pressure head is also installed on the end of the pressure plate through a bearing sleeve. A pad is installed in a hole at the center of the gear plate, and the pad is fixedly connected to the chassis. A vertical screw is also connected to the top of the vertical shaft, and a butterfly nut is threaded on the vertical screw. A transmission gear is also meshed on the side of the gear, and a drive motor is installed on the transmission gear.

[0012] Preferably, the planetary gear set includes a central gear and three surrounding gears meshing and rolling on the central gear, the surrounding jet component also includes a positioning ring, the central gear is arranged at the center of the positioning ring, and an annular rack is also arranged on the inner wall of the positioning ring, the three surrounding gears are all meshed and roll on the annular rack, and the central axes of the three surrounding gears are connected to the same tripod, the center of the tripod is mounted on the central axis of the central gear, and a strip frame is also mounted on the central axis of the central gear, and both ends of the strip frame are fixed on the positioning ring, and a working motor is also installed on the top of the central axis of the central gear.

[0013] Preferably, a cross rail is also installed on the bottom end of the center axis of the surrounding gear, a transmission screw is installed parallel to the inside of the cross rail, and an adjustment motor is installed on the end of the transmission screw, the adjustment motor is installed on the cross rail through the motor frame, and an adjustment slider is also threadedly mounted on the transmission screw, the adjustment slider is slidably installed in the cross rail, and the air guide groove is fixedly installed at the bottom of the adjustment slider.

[0014] Preferably, a power shaft is rotatably installed in the stuffing box, a spiral blade is spirally mounted on the power shaft, the top of the spiral blade extends to the inlet of the spiral nozzle, and a solenoid valve is also installed at the inlet of the spiral nozzle.

[0015] Preferably, the top of the power shaft extends through and extends to the top of the stuffing box, and pulleys are installed on the top of the power shaft and the center shaft of the center gear. The same belt is installed on the two pulleys for transmission. A protective shell extending to the top of the stuffing box is also installed on the side of the vacuum box, and the pulleys and belts are both arranged inside the protective shell.

[0016] Preferably, the plasma generator is composed of two arc-shaped electrode plates, which are respectively connected to the positive and negative poles of the built-in power supply of the vacuum box, and empty grooves are left at the butt ends of the two arc-shaped electrode plates, and the two air supply boxes are respectively installed in the two empty grooves.

[0017] Preferably, an air filter is installed in the air outlet of the air supply box, and a bevel is provided on the side of the air supply box away from the air filter, and the bevel is docked on the edge of the air filter. A back panel is also installed on the back of the air supply box, and a plurality of air outlets are provided on the back panel. An air supply pipe is connected to the back of the back panel, and the end of the air supply pipe extends to the outside of the vacuum box and is docked with a blower.

[0018] A method for treating the surface of a biomaterial using a plasma biomaterial surface treatment device comprises the following steps:

[0019] S1: Open the vacuum box, loosen the butterfly nut, push the pressing plate upward, then place the biomaterial between the pressing head and the pad, tighten the butterfly nut to squeeze the pressing plate to fix it, and then close the vacuum box to keep it sealed;

[0020] S2: Start the regulating motor, which cooperates with the transmission screw to push the regulating slider to slide, change the position of the air inlet groove, and start the internal air inlet fan, and start the working motor at the same time. When the working motor drives the planetary gear set to operate, it will push the air inlet groove to move around the biomaterial, and spray the mixture of plasma and air in the vacuum box to the surface of the biomaterial for modification;

[0021] S3: At the same time, the blower needs to be started. The blower will deliver air into the air delivery box. After being guided by the bevel inside the air delivery box, the air will be tilted into the vacuum box and rotate spirally, so as to form a flowing airflow and quickly mix the air and plasma.

[0022] S4: At the same time, the solenoid valve on the spiral nozzle is opened, and the modified material in the stuffing box will enter the vacuum box along the spiral nozzle, and with the cooperation of the air duct, it can be mixed with the airflow of the plasma and air mixture again and sprayed onto the surface of the biomaterial to modify the biomaterial. According to the different required performances, suitable modified materials can be selected and loaded into the stuffing box.

[0023] In summary, the present invention includes the following beneficial technical effects:

[0024] 1. The present application installs the air induction grooves through the cooperation of the planetary gear set, which can drive multiple air induction grooves to rotate around the center point, and an air flow is installed in the air induction groove to drive the flow of the plasma and air mixture, so as to facilitate the plasma to be sprayed onto the surface of the biomaterial for modification.

[0025] 2. The present application also provides modified materials in the stuffing box, and different modified materials can be selected according to the required characteristics. With the cooperation of the spiral nozzle, the modified materials can be released into the vacuum box. After further mixing with the plasma-air mixture, they can be sprayed onto the surface of the biomaterial, thereby enhancing the specific properties of the biomaterial and making it more convenient to use.

[0026] 3. The present application provides an inclined edge in the air delivery box to guide the oblique flow of air. After the air enters the vacuum box, it can spirally rotate, which can promote the plasma and air to form an airflow flow, accelerate the mixing degree, and facilitate ensuring that the plasma and air are evenly mixed before being sprayed onto the surface of the biomaterial for modification.

[0027] 4. The present application can press the pressing plate downwards through the cooperation of the vertical screw and the butterfly nut. The squeezing effect of the pressing head on the pressing plate can facilitate the fixation of the biomaterial and the taking and placing is also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic cross-sectional structure diagram of the vacuum box of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the vacuum box of the present invention;

[0031] Figure 4 is a schematic diagram of the electrode plate wrapping part structure of the present invention;

[0032] Figure 5 It is a schematic cross-sectional structural diagram of a stuffing box of the present invention;

[0033] Figure 6 is a top view schematic diagram of the surrounding jet injection component of the present invention;

[0034] Figure 7 is a bottom view schematic diagram of the surrounding jet injection component of the present invention;

[0035] Figure 8 It is a schematic structural diagram of the clamping device of the present invention;

[0036] Fig. 9 It is a schematic diagram of the disassembly of the air supply box structure of the present invention.

[0037] Description of reference numerals: 1. vacuum box; 2. plasma generator; 201. chassis; 202. gear plate; 203. vertical shaft; 204. sleeve; 205. pressure plate; 206. pressure head; 207. vertical screw; 208. butterfly nut; 209. transmission gear; 210. drive motor; 3. surrounding jet component; 301. positioning ring; 302. central gear; 303. surrounding gear; 304. annular rack; 305. air duct; 3051. drainage Fan; 3052, cross rail; 3053, adjustment slider; 3054, transmission screw; 3055, adjustment motor; 306, working motor; 4, modified material replenishment components; 401, stuffing box; 4011, power shaft; 4012, spiral blade; 402, spiral nozzle; 4021, spray hole; 4022, solenoid valve; 5, air supply components; 501, air supply box; 502, air filter; 503, back plate; 504, air supply pipe; 505, blower. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1 to 9 The present invention is described in further detail.

[0039] It should be noted that the drawings are schematic and not to scale. For the sake of clarity and convenience, the relative sizes and proportions of the parts shown in the drawings are exaggerated or reduced in size, and any size is only illustrative and not restrictive. In addition, the same reference symbol is used for the same structure, element or accessory appearing in more than two figures to reflect similar features.

[0040] Embodiment 1

[0041] The present invention discloses a plasma biomaterial surface treatment device. Figure 1 , 2As shown in , 4 and 8, a plasma biomaterial surface treatment device comprises a vacuum box 1, in which a plasma generator 2 is fixedly installed, and the plasma generator 2 is composed of two arc-shaped electrode plates, which are respectively connected to the positive and negative poles of the built-in power supply of the vacuum box 1, and an empty groove is left at the butt-jointed ends of the two arc-shaped electrode plates, a chassis 201 is arranged inside the plasma generator 2, and a clamping device for the biomaterial is arranged on the chassis 201, and the clamping device comprises a vertical shaft 203, a sleeve 204, and a pressing plate 205 installed on the sleeve 204, a gear plate 202 is also installed at the bottom of the vertical shaft 203, and the gear plate 202 is rotatably installed at the center of the chassis 201, and a pressure head is also arranged on the end of the pressing plate 205 through a bearing sleeve. 206, a pad is installed in a hole at the center of the gear plate 202, and the pad is fixedly connected to the chassis 201. A vertical screw 207 is also connected to the top of the vertical shaft 203, and a butterfly nut 208 is threadedly sleeved on the vertical screw 207. A transmission gear 209 is also meshedly arranged on the side of the gear plate 202, and a driving motor 210 is installed on the transmission gear 209. When necessary, the butterfly nut 208 can be loosened first to push the pressing plate 205 to move upward. At this time, the biomaterial can be placed between the pad and the pressure head 206, and then the butterfly nut 208 can be re-tightened to push the pressing plate 205 and the pressure head 206 to squeeze and fix the biomaterial, and the contact point area is small, which can ensure that the plasma-modified material can fully cover the surface of the biomaterial.

[0042] Reference Figure 3 , 4, 6, and 7, a surrounding jet component 3 is also installed in the vacuum box 1. The surrounding jet component 3 includes a set of planetary gear sets and an air inlet groove 305 installed below the planetary gear set. The air inlet groove 305 runs through the front and back and is provided with a contracted air outlet structure on the side facing the center. A plurality of air inlet fans 3051 are also installed inside the air inlet groove 305 to facilitate the propulsion of the plasma and air flow toward the surface of the biological material. The planetary gear set includes a central gear 302 and three surrounding gears 303 meshing and rolling on the central gear 302. The surrounding jet component 3 also includes a positioning ring 301, the central gear 302 is arranged at the center of the positioning ring 301, and an annular rack 304 is also arranged on the inner wall of the positioning ring 301, and the three surrounding gears 303 are all meshed and rolled on the annular rack 304, and the central axes of the three surrounding gears 303 are connected to the same tripod, and the center of the tripod is mounted on the central axis of the central gear 302, and a strip frame is also mounted on the central axis of the central gear 302, and both ends of the strip frame are fixed on the positioning ring 301, and a working motor 306 is also installed on the top of the central axis of the central gear 302, and the surrounding gears 303 are connected to the same tripod. A cross rail 3052 is also installed on the bottom end of the central axis, a transmission screw 3054 is installed in parallel inside the cross rail 3052, and an adjustment motor 3055 is installed on the end of the transmission screw 3054. The adjustment motor 3055 is installed on the cross rail 3052 through a motor frame, and an adjustment slider 3053 is also threadedly sleeved on the transmission screw 3054. The adjustment slider 3053 is slidably installed in the cross rail 3052, and the air guide groove 305 is fixedly installed at the bottom of the adjustment slider 3053. When working, with the cooperation of the working motor 306, the central gear 302 can be pushed to rotate, and due to The coordination of the surrounding gear 303, the central gear 302 and the annular rack 304 can keep the surrounding gear 303 rolling around the central gear 302. At this time, the air induction groove 305 arranged below it will rotate around the center point together. When the air induction fan 3051 inside the air induction groove 305 is started, it can push the air flow to the surface of the biomaterial, so as to facilitate the modification of the surface of the biomaterial. In addition, the distance between the air induction groove 305 and the biomaterial can be adaptively changed according to the volume of the biomaterial, so as to facilitate the plasma to evenly cover the surface of the biomaterial.

[0043] Embodiment 2

[0044] Reference Figure 2 , 3As shown in Figures 4 and 5, a modified material replenishing component 4 is also installed on the outside of the vacuum box 1. The modified material replenishing component 4 includes a stuffing box 401 and a spiral nozzle 402 installed on the stuffing box 401. The spiral nozzle 402 is arranged in the plasma generator 2, and a plurality of spray holes 4021 are opened on the side of the spiral nozzle 402 facing the center, so as to facilitate the replenishment of modified materials into the vacuum box 1 and enhance the performance of the biomaterial. A power shaft 4011 is also rotatably installed in the stuffing box 401, and a spiral piece 4012 is spirally mounted on the power shaft 4011. The top of the spiral piece 4012 extends to the position of the entrance of the spiral nozzle 402, and a solenoid valve 4022 is also installed at the entrance of the spiral nozzle 402. The top of the power shaft 4011 extends through to the top of the stuffing box 401, and the tops of the power shaft 4011 and the center shaft of the center gear 302 are both equipped with pulleys, and the same belt is installed on the two pulleys for transmission. A protective shell extending to the top of the stuffing box 401 is also installed on the side of the vacuum box 1, and the pulley and the belt are both arranged inside the protective shell. In addition, different modified materials can be loaded in the stuffing box 401 according to different characteristics required, such as oxygen and nitrogen, which can increase the hydrophilicity of the surface of the biomaterial or be used for protein fixation, and organic silicon compounds can be loaded, which can be mixed with the gas in the plasma to introduce silicon-based functional groups on the surface of the biomaterial and enhance the binding force with the silicon-based material, etc.;

[0045] Embodiment 3

[0046] Reference Figure 2 , 3 As shown in , 9, the vacuum box 1 is also equipped with an air supply component 5, which includes two air supply boxes 501. The air outlet of the air supply box 501 faces the center of the plasma generator 2, which is convenient for replenishing air therein. The two air supply boxes 501 are respectively installed in two empty slots at the ends of the arc-shaped electrode plates. An air filter 502 is installed in the air outlet of the air supply box 501, and a bevel is provided on the side of the air supply box 501 away from the air filter 502, and the bevel is docked on the edge of the air filter 502. A back plate 503 is also installed on the back of the air supply box 501, and a plurality of air outlets are provided on the back plate 503 , and an air supply pipe 504 is connected to the back side of the back plate 503, and the end of the air supply pipe 504 extends to the outside of the vacuum box 1 and is also connected to a blower 505. In addition, in order to facilitate the rapid mixing of the plasma generated inside the plasma generator 2 and the air to form an airflow, a beveled edge for guiding the oblique blowing of air is provided on the inner wall of the air supply box 501. After the obliquely blown air enters the plasma generator 2, it can spirally rotate, thereby quickly mixing with the plasma generated inside, so as to ensure that the plasma and air are evenly mixed and then sprayed onto the surface of the biomaterial for modification.

[0047] A method for treating the surface of a biomaterial using a plasma biomaterial surface treatment device comprises the following steps:

[0048] S1: Open the vacuum box 1, loosen the butterfly nut 208, push the pressing plate 205 upward, then place the biological material between the pressing head 206 and the pad, tighten the butterfly nut 208 to squeeze the pressing plate 205 to fix it, and then close the vacuum box 1 to keep it sealed;

[0049] S2: Start the adjustment motor 3055. The adjustment motor 3055 cooperates with the transmission screw 3054 to push the adjustment slider 3053 to slide, change the position of the air guide groove 305, and start the air guide fan 3051 inside it. At the same time, start the working motor 306. When the working motor 306 drives the planetary gear set to operate, it will push the air guide groove 305 to move around the biomaterial, and spray the mixture of plasma and air in the vacuum box 1 onto the surface of the biomaterial for modification.

[0050] S3: At the same time, the blower 505 needs to be started, and the blower 505 will convey air into the air delivery box 501. After being guided by the bevel inside the air delivery box 501, the air will be obliquely conveyed into the vacuum box 1 and rotate spirally, so as to form a flowing airflow and quickly mix the air with the plasma.

[0051] S4: At the same time, the solenoid valve 4022 on the spiral nozzle 402 is opened, and the modified material in the stuffing box 401 will enter the vacuum box 1 along the spiral nozzle 402, and with the cooperation of the air inlet groove 305, it can be mixed with the airflow of the plasma and air mixture again and sprayed onto the surface of the biomaterial to modify the biomaterial. According to the different required performances, suitable modified materials can be selected and loaded into the stuffing box 401.

[0052] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method 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 present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A plasma biomaterial surface treatment device, characterized in that: The invention comprises a vacuum box (1), wherein a plasma generator (2), a surrounding jetting component (3) and a gas supply component (5) are fixedly installed in the vacuum box (1); in addition, a modified material replenishing component (4) is also installed on the outer side of the vacuum box (1): A base plate (201) is arranged inside the plasma generator (2), and a clamping device for biological materials is arranged on the base plate (201); The surrounding jetting component (3) comprises a set of planetary gear sets and an air inlet groove (305) installed below the planetary gear sets. The air inlet groove (305) runs through the front and back and is provided with a contracted air outlet structure on the side facing the center. A plurality of air inlet fans (3051) are also installed inside the air inlet groove (305) to facilitate the propulsion of the plasma and air flow toward the surface of the biological material. The modified material replenishing component (4) comprises a stuffing box (401) and a spiral nozzle (402) installed on the stuffing box (401); the spiral nozzle (402) is arranged in the plasma generator (2), and a plurality of nozzle holes (4021) are opened on the side of the spiral nozzle (402) facing the center, so as to facilitate replenishing the modified material into the vacuum box (1) and enhance the performance of the biomaterial; The air supply component (5) comprises two air supply boxes (501), and the air outlets of the air supply boxes (501) face the center of the plasma generator (2), so as to facilitate the replenishment of air into the interior thereof; The clamping device comprises a vertical shaft (203), a sleeve (204), and a pressure plate (205) installed on the sleeve (204); a gear plate (202) is installed at the bottom of the vertical shaft (203); the gear plate (202) is rotatably installed at the center of the chassis (201); a pressure head (206) is installed at the end of the pressure plate (205) through a bearing sleeve; a pad is installed in a hole at the center of the gear plate (202); the pad is fixedly connected to the chassis (201); a vertical screw rod (207) is connected to the top of the vertical shaft (203); a butterfly nut (208) is threadedly sleeved on the vertical screw rod (207); a transmission gear (209) is meshedly arranged on the side of the gear plate (202); and a driving motor (210) is installed on the transmission gear (209).

2. The plasma biomaterial surface treatment device according to claim 1, characterized in that: The planetary gear set comprises a central gear (302) and three surrounding gears (303) meshing and rolling on the central gear (302); the surrounding jet component (3) further comprises a positioning ring (301); the central gear (302) is arranged at the center of the positioning ring (301); an annular rack (304) is also arranged on the inner wall of the positioning ring (301); the three surrounding gears (303) are all meshed and rolling on the annular rack (304); and the central axes of the three surrounding gears (303) are respectively connected to the same tripod; the center of the tripod is mounted on the central axis of the central gear (302); a strip frame is also mounted on the central axis of the central gear (302); both ends of the strip frame are fixed on the positioning ring (301); and a working motor (306) is also mounted on the top of the central axis of the central gear (302).

3. The plasma biomaterial surface treatment device according to claim 2, characterized in that: A cross rail (3052) is also installed on the bottom end of the central axis of the surrounding gear (303), a transmission screw (3054) is installed in parallel inside the cross rail (3052), and an adjustment motor (3055) is installed on the end of the transmission screw (3054), and the adjustment motor (3055) is installed on the cross rail (3052) through a motor frame. An adjustment slider (3053) is also threadedly mounted on the transmission screw (3054), and the adjustment slider (3053) is slidably installed in the cross rail (3052), and the air guide groove (305) is fixedly installed at the bottom of the adjustment slider (3053).

4. The plasma biomaterial surface treatment device according to claim 1, characterized in that: A power shaft (4011) is rotatably mounted in the stuffing box (401), and a spiral blade (4012) is spirally mounted 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 a solenoid valve (4022) is also installed at the inlet of the spiral nozzle (402).

5. The plasma biomaterial surface treatment device according to claim 4, characterized in that: The top of the power shaft (4011) extends through and to the top of the stuffing box (401), and pulleys are mounted on the top of the power shaft (4011) and the top of the center shaft of the center gear (302), and the same belt is installed on the two pulleys for transmission. A protective shell extending to the top of the stuffing box (401) is also installed on the side of the vacuum box (1), and the pulleys and belts are both arranged inside the protective shell.

6. The plasma biomaterial surface treatment device according to claim 1, characterized in that: The plasma generator (2) is composed of two arc-shaped electrode plates, which are respectively connected to the positive and negative electrodes of the built-in power supply of the vacuum box (1), and empty grooves are left at the ends of the two arc-shaped electrode plates where they are connected, and the two air supply boxes (501) are respectively installed in the two empty grooves.

7. The plasma biomaterial surface treatment device according to claim 6, characterized in that: An air filter (502) is installed in the air outlet of the air supply box (501), and a bevel is provided on the side of the air supply box (501) away from the air filter (502), and the bevel is butted against the edge of the air filter (502). A back plate (503) is also installed on the back of the air supply box (501), and a plurality of air outlets are provided on the back plate (503). An air supply pipe (504) is connected to the back of the back plate (503), and an end of the air supply pipe (504) extends to the outside of the vacuum box (1) and is butt-connected with a blower (505).

8. A method for treating the surface of a biomaterial using a plasma biomaterial surface treatment device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Open the vacuum box (1), loosen the butterfly nut 208, push the pressing plate 205 upward, then place the biological material between the pressing head 206 and the pad, tighten the butterfly nut 208 to squeeze the pressing plate 205 to fix it, and then close the vacuum box (1) to keep it sealed; S2: Start the adjustment motor 3055. The adjustment motor 3055 cooperates with the transmission screw 3054 to push the adjustment slider 3053 to slide, change the position of the air guide groove 305, and start the air guide fan 3051 inside it. At the same time, start the working motor 306. When the working motor 306 drives the planetary gear set to operate, it will push the air guide groove 305 to move around the biomaterial, and spray the mixture of plasma and air in the vacuum box (1) onto the surface of the biomaterial for modification; S3: At the same time, the blower 505 needs to be started, and the blower 505 will convey air into the air delivery box 501. After being guided by the bevel inside the air delivery box 501, the air will be obliquely conveyed into the vacuum box 1 and rotate spirally, so as to form a flowing airflow and quickly mix the air with the plasma. S4: At the same time, the solenoid valve 4022 on the spiral nozzle 402 is opened, and the modified material in the stuffing box 401 will enter the vacuum box 1 along the spiral nozzle 402, and with the cooperation of the air inlet groove 305, it can be mixed with the airflow of the plasma and air mixture again and sprayed onto the surface of the biomaterial to modify the biomaterial. According to the different required performances, suitable modified materials can be selected and loaded into the stuffing box 401.

Images