A portable low-voltage electrospinning device for wound dressings

Abstract

The application provides a portable low-voltage electrostatic spinning device for a wound dressing and belongs to the technical field of medical electrostatic spinning devices. The device comprises a shell assembly, a pressurizing assembly, an injection head component, a turnover rod assembly, a parallel orientation receiving assembly and a drying component. A transversely movable lead screw slide is arranged above the shell assembly, and the injection head component is integrally installed on the lead screw front seat through a pressing sleeve. The parallel orientation receiving assembly is rotatably connected to the front side of the shell assembly through a turnover rod, so that the parallel orientation receiving assembly can form two states of portable recovery and unfolded use. After the solid fiber membrane is made and the receiving cylinder enters the recovery state, the outer gear ring is just matched with the lead screw gear to form transmission, so that after the lead screw slide is recovered and separated from the pressurizing piston rod, the air power generated by the rotation of the fan plate can quickly dry the solid fiber membrane by blowing hot air on the solid fiber membrane attached to the outside of the receiving cylinder.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a portable low-voltage electrospinning device for wound dressings. Background Technology

[0002] Electrospinning is a unique spinning technology in which a solution or melt of charged polymer overcomes its own surface tension and viscoelastic force under the action of an electrostatic field, stretches and deforms, and as the solvent evaporates or the melt cools and solidifies, ultrafine fibers with diameters ranging from a few nanometers to a few micrometers are obtained at the collection device.

[0003] Because the fiber materials prepared by electrospinning have good mechanical strength, this technology is widely used in the preparation of medical dressings. Traditional electrospinning requires a high-voltage power supply to establish an electric field, and the components required are also relatively large. Therefore, it can only be operated in a fixed location with power supply, making it inconvenient to move to the actual field and resulting in poor portability. Summary of the Invention

[0004] The purpose of this invention is to provide a portable low-voltage electrospinning device for wound dressings. By mounting the parallel orientation receiving component for receiving solid fiber membranes as a whole on a flipping rod, the parallel orientation receiving component can be retracted for easy carrying and can also be quickly deployed for real-time on-site operation.

[0005] The objective of this invention is achieved through the following technical solution: a portable low-voltage electrospinning device for wound dressings, comprising a housing assembly, a pressurizing assembly, an injection head assembly, a flipping rod assembly, a parallel orientation receiving assembly, and a drying assembly. The pressurizing assembly includes a lead screw slider and a lead screw gear, the injection head assembly includes a piston rod, the flipping rod assembly includes a flipping rod, and the drying assembly includes an outer gear ring and a fan plate.

[0006] A rotatable pressure screw is provided at the top center of the housing assembly. The large gear of the screw is inserted into one end of the pressure screw. The screw slider slides on the top of the housing assembly and is connected in the pressure screw. A syringe is installed on the other side of the top of the housing assembly. The head of the piston rod is inserted into the syringe. The end of the piston rod can contact and connect with the screw slider. A nozzle is installed at the head of the syringe.

[0007] The middle part of the flip rod is screwed to the front end of the housing assembly, and a rotatable receiving tube is installed at one end of the flip rod.

[0008] One end of the flipping rod is also fixedly connected to a corner seat. The inner surface of the corner seat is screwed with a follower inner ring. The fan plate is connected to the outside of the follower inner ring. The outer end of the fan plate is connected to an outer gear ring. After the flipping rod rotates to the retraction position, the outer gear ring just meshes with the lead screw large gear.

[0009] The process of using the technical solution of the present invention is as follows:

[0010] This invention can be configured in both a portable state and a working state;

[0011] The receiving tube can be retrieved by a rotatable flipping rod, allowing it to be retrieved directly above the housing assembly, thus creating a convenient retrieval state for easy carrying.

[0012] When needed, the receiving tube is extended to the front of the nozzle by flipping the lever;

[0013] With the lead screw slider positioned close to the large lead screw gear, remove the syringe and inject a certain amount of polymer solution into the syringe cavity by moving the piston rod.

[0014] The syringe can then be reinstalled on top of the housing assembly, and the pressure screw is rotated by the large lead screw gear, causing the lead screw slider to move towards the end of the piston rod until it is in contact with the piston rod.

[0015] Synchronously put the receiver tube into a rotating state, ground the receiver tube, supply power to the nozzle, and provide an electric field;

[0016] Driven by the lead screw and slider, the polymer solution in the syringe is sprayed out evenly, and under the action of the electric field, the jet sprayed out through the nozzle becomes thinner, the oscillation and instability increase, and the thinner jet is collected and solidified as solid fibers outside the rotating receiving cylinder.

[0017] As a certain amount of polymer solution is injected into the inner cavity of the syringe and completely ejected, solid fibers gradually form a membrane on the outside of the receiving tube.

[0018] Driven by the flipping rod, the receiving cylinder can be retracted to the position where the outer gear ring meshes with the large gear of the lead screw. The large gear of the lead screw rotates in the opposite direction, which on the one hand drives the lead screw slider to retract and disengage from the end of the piston rod, and on the other hand drives the fan plate to rotate, forming a positive pressure blowing on the receiving cylinder. Combined with the rotation of the receiving cylinder itself, it can achieve the effect of drying the fiber membrane. The fiber membrane can then be removed and used as a wound dressing.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention is based on the housing assembly and has a rotatable flip rod on the front side of the main body of the housing assembly. By rotating the rotatable receiving tube to one end of the flip rod, the receiving tube can enter a convenient carrying and recycling state with the flip rod when not in operation, and can be used in an unfolded state with the flip rod when in operation. Thus, the purpose of convenient storage and carrying and easy unfolding for work can be achieved through the rotation function of the flip rod.

[0021] (2) Furthermore, the present invention creatively provides a drying component on one side of the receiving tube. By rotating the flipping rod, the outer gear ring can mesh with the lead screw large gear when the receiving tube moves to the recycling position with the flipping rod. The purpose of this arrangement is that after the outer gear ring meshes with the lead screw large gear, the lead screw large gear drives the lead screw slider to move backward, and after the pressure on the piston rod is removed, the fan plate can be rotated synchronously. Thus, during the process of the lead screw slider moving backward for recycling, the fan plate can generate air power synchronously and blow it to the outside of the receiving tube, forming a rapid drying effect on the finished fiber film. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of a portable low-voltage electrospinning device for wound dressings in the recovery state provided by the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention in its usage state;

[0025] Figure 3 This is a first-view structural schematic diagram of the housing assembly of the present invention;

[0026] Figure 4 This is a structural schematic diagram of the housing assembly of the present invention from a second perspective;

[0027] Figure 5 This is a schematic diagram of the pressurization component of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the injection head component of the present invention;

[0029] Figure 7 This is a schematic diagram of the flip arm assembly of the present invention;

[0030] Figure 8This is a schematic diagram of the parallel orientation receiving component of the present invention;

[0031] Figure 9 This is a schematic diagram of the first state of the drying component of the present invention;

[0032] Figure 10 This is a schematic diagram of the second state of the drying component of the present invention;

[0033] Figure 11 This is a schematic diagram of the specific structure of the drying component of the present invention.

[0034] Reference numerals: 1. Housing assembly; 2. Pressurizing assembly; 3. Injection head assembly; 4. Flip rod assembly; 5. Parallel orientation receiving assembly; 6. Drying assembly; 101. Upper housing; 102. Middle housing; 103. Self-closing fan; 104. Lower housing; 105. Top cover; 106. Main control board; 107. Low-voltage power supply; 108. Boost converter; 109. Bottom cover; 201. Lead screw rear seat; 202. Lead screw front seat; 203. Pressurizing lead screw; 204. Lead screw slider; 205. Guide hole; 206. Guide column; 207. Stand; 208. Lead screw large gear; 209. Drive motor; 210 301. Drive pinion; 302. Syringe; 303. Pressure sleeve; 304. Piston rod; 305. Nozzle; 406. Wire; 407. Side base; 408. Tilting rod; 409. Tilting shaft; 4000. Tilting drive shaft; 4001. Tilting base; 501. Cylinder rotating seat; 502. Cylinder rotating shaft; 503. Receiver tube; 504. Rotating pulley; 505. Pulley motor; 506. Drive pulley; 507. Connecting belt; 608. Corner seat; 609. Heating wire; 6000. External gear ring; 6001. Follower shaft; 6002. Follower inner ring; 6003. Fan plate. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] like Figures 1-11 The portable low-voltage electrospinning device for wound dressing shown has a rotatable pressure screw 203 at the top center of the housing assembly 1. A large screw gear 208 is inserted into one end of the pressure screw 203. A screw slider 204 is slidably connected to the top of the housing assembly 1 and is fitted into the pressure screw 203. A syringe 301 is installed on the other side of the top of the housing assembly 1. The head end of the piston rod 303 is inserted into the syringe 301. The end of the piston rod 303 can contact and connect with the screw slider 204. Thus, the movement of the screw slider 204 can push the piston rod 303 to achieve the purpose of injection. A nozzle 304 is inserted into the head end of the syringe 301.

[0038] The middle part of the flip rod 402 is screwed to the front end of the housing assembly 1. A rotatable receiving tube 503 is installed at one end of the flip rod 402, and the rotation direction of the receiving tube 503 is spatially perpendicular to the setting direction of the nozzle 304.

[0039] One end of the flipping rod 402 is also fixedly connected to a corner seat 601. A follower inner ring 605 is screwed onto the inner surface of the corner seat 601. An array of fan plates 606 is connected to the outside of the follower inner ring 605. The outer ends of the array of fan plates 606 are connected to an outer gear ring 603. After the flipping rod 402 rotates to the retraction position, the outer gear ring 603 just meshes with the lead screw large gear 208. As the pressure lead screw 203 drives the lead screw slider 204 to move backward, the lead screw large gear 208 can drive the rotation of the outer gear ring 603 to form a positive pressure blowing on the receiving tube 503.

[0040] This invention can be made into a portable form;

[0041] The receiving tube 503 can be retrieved by rotating the flipping rod 402, so that the receiving tube 503 can be retrieved to the top of the housing assembly 1, thus forming a convenient retrieval state.

[0042] The present invention can also be deployed for use. When needed, the receiving tube 503 is deployed to the front of the nozzle 304 by the flipping rod 402.

[0043] With the lead screw slider 204 positioned close to the lead screw large gear 208, the syringe 301 is removed, and a certain amount of polymer solution is injected into the inner cavity of the syringe 301 by moving the piston rod 303.

[0044] The syringe 301 can then be reinstalled on the top of the housing assembly 1, and the pressure screw 203 is rotated by the lead screw gear 208, so that the lead screw slider 204 moves toward the end of the piston rod 303 until it is in contact with the piston rod 303.

[0045] Synchronously, the receiver tube 503 is put into a rotating state, grounded, and power is supplied to the nozzle 304 to provide an electric field.

[0046] Driven by the lead screw and slider 204, the polymer solution in the syringe 301 is sprayed out evenly, and under the action of the electric field, the jet sprayed out through the nozzle 304 becomes thinner, the oscillation instability increases, and the thinner jet is collected and solidified as solid fibers outside the rotating receiving cylinder 503.

[0047] As a certain amount of polymer solution is injected into the inner cavity of the syringe 301 and completely ejected, the solid fibers gradually form a membrane on the outside of the receiving tube 503.

[0048] Driven by the flipping rod 402, the receiving cylinder 503 can be retracted to the position where the outer gear ring 603 meshes with the lead screw large gear 208. The lead screw large gear 208 rotates in the opposite direction, which on the one hand drives the lead screw slider 204 to retract and disengage from the end of the piston rod 303, and on the other hand drives the fan plate 606 to rotate, forming a positive pressure blowing on the receiving cylinder 503. Combined with the rotation of the receiving cylinder 503 itself, it can achieve the effect of drying the fiber membrane. The fiber membrane can then be removed and used as a wound dressing.

[0049] The specific structures of housing assembly 1 and pressurization assembly 2 are as follows: Figure 3 , Figure 4 and Figure 5 As shown, the bottom end of the upper shell 101 is fixedly connected to the middle shell 102, and the bottom end of the middle shell 102 is fixedly connected to the lower shell 104.

[0050] A main control board 106 is installed and fixed on one side of the inner cavity of the upper housing 101, and the upper cover 105 is fixedly installed at the opening at the top of the upper housing 101.

[0051] A low-voltage power supply 107 and a booster 108 are respectively installed and fixed on both sides of the inner cavity of the lower housing 104, and the bottom cover 109 is fixedly connected to the opening at the bottom of the lower housing 104.

[0052] Furthermore, both the boost converter 108 and the low-voltage power supply 107 are electrically connected to the main control board 106;

[0053] The rear seat 201 and the front seat 202 of the lead screw are fixedly connected to the two sides of the top of the upper cover 105, respectively, and the two ends of the pressure lead screw 203 are rotatably connected to the rear seat 201 and the front seat 202 of the lead screw, respectively.

[0054] The bottom of the lead screw slider 204 has symmetrical guide holes 205 at both ends. The guide column 206 is fixedly connected to the top surface of the upper cover 105 through the uprights 207 at both ends. The lead screw slider 204 is slidably connected to the guide column 206 through the guide holes 205.

[0055] The drive motor 209 is mounted and fixed on the other side of the inner cavity of the upper housing 101 and is electrically connected to the main control board 106;

[0056] The drive motor 209 passes through the side wall of the upper housing 101 and is fixedly connected to the drive pinion 210. The drive pinion 210 meshes with the lead screw large gear 208. Through the cooperation formed by the pressure lead screw 203 and the lead screw slider 204, the lead screw slider 204 can be driven to move laterally precisely.

[0057] The specific structure of injection head component 3 is as follows: Figure 6 As shown, the syringe 301 is fixedly connected to the top of the lead screw front seat 202 via the pressure sleeve 302. The nozzle 304 is electrically connected to the booster 108 via the wire 305. The pressure sleeve 302 is detachable, so that the syringe 301 and related components can be removed and stored when not in use, making it convenient to carry.

[0058] The specific structures of the flip arm assembly 4 and the parallel orientation receiving assembly 5 are as follows: Figure 7 and Figure 8 As shown, the side support 401 is fixedly connected to the front side of the middle housing 102, and the flip rod 402 is fixedly connected to the middle part of the flip shaft 403. The flip rod 402 is rotatably connected to the side support 401 through the flip shaft 403.

[0059] A flipping base 405 is fixedly connected to the front side of the top cover 105. The top of the main body of the flipping electric cylinder 406 is rotatably connected to the flipping base 405. The other end of the flipping rod 402 is fixedly connected to the flipping drive shaft 404. The telescopic rod of the flipping electric cylinder 406 is rotatably connected to the flipping drive shaft 404. The flipping electric cylinder 406 is electrically connected to the main control board 106.

[0060] In the carrying state, the parallel orientation receiving component 5 is retracted along with the flip arm component 4 and is positioned directly above the housing component 1;

[0061] When needed, the tilting electric cylinder 406 can be started through the main control board 106. The telescopic rod of the tilting electric cylinder 406 moves and forms a screw connection with the tilting drive shaft 404, thereby driving the tilting rod 402 to rotate around the tilting shaft 403 as a reference, so that the tilting rod 402 itself enters the unfolded state.

[0062] Then, the component connected to the syringe 301 is removed, and after a certain amount of polymer solution is added into the inner cavity of the syringe 301, the syringe 301 is fixedly connected to the top of the lead screw front seat 202 through the pressure sleeve 302.

[0063] The main control board 106 can make the electrical energy of the low-voltage power supply 107 become high voltage through the booster 108, and provide an electric field to the nozzle 304 through the wire 305;

[0064] The cylinder seat 501 is connected to one end of the flipping rod 402, the cylinder shaft 502 is rotatably connected in the cylinder seat 501, the receiving cylinder 503 is inserted and fixed to one end of the cylinder shaft 502, and the other end of the cylinder shaft 502 is inserted and fixed to a rotating pulley 504.

[0065] The pulley motor 505 is mounted and fixed on the outer side of the flipping rod 402. The drive pulley 506 is inserted and fixed in the rotating shaft of the pulley motor 505. A connecting belt 507 is sleeved between the rotating pulley 504 and the drive pulley 506. The pulley motor 505 is electrically connected to the main control board 106.

[0066] The main control board 106 starts the pulley motor 505, which drives the drive pulley 506 to rotate. The drive pulley 506 can drive the rotating pulley 504 to rotate through the connecting belt 507, thereby driving the receiving tube 503 to rotate at a constant speed.

[0067] The specific structure of drying component 6 is as follows: Figure 9 , Figure 10 and Figure 11 As shown, the follower shaft 604 is fixedly connected to the inner side of the corner seat 601 at a position opposite to the receiving tube 503, and the follower inner ring 605 is rotatably connected in the follower shaft 604;

[0068] Heating wires 602 are installed at the upper and lower ends of the corner seat 601, and the heating wires 602 are electrically connected to the main control board 106. The specific position of the heating wires 602 is directly opposite the fan plate 606, so that it can provide heat to the fan plate 606 when the outer gear ring 603 drives the fan plate 606, thereby improving the drying efficiency.

[0069] After the polymer solution in syringe 301 is used up and a solid fiber membrane is formed on the outside of receiver 503, the flipping rod 402 can be retracted to the position where the outer gear ring 603 meshes with the lead screw large gear 208 by activating the flipping electric cylinder 406.

[0070] The heating wire 602 is activated by the main control board 106, which generates heat. After the lead screw large gear 208 drives the outer gear ring 603 to rotate, hot air is blown to the outside of the receiving cylinder 503 to quickly dry the solid fiber film.

[0071] Preferably, the rear side of the middle housing 102 is hinged with a self-closing fan 103 that can be used to place the injection head component 3 when not in use or being carried. This allows the components formed by the syringe 301, piston rod 303, nozzle 304 and wire 305 to be removed and placed inside the middle housing 102 via a detachable pressure sleeve 302 when being carried, further improving the portability of the present invention.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable low-voltage electrospinning device for wound dressings, comprising a housing assembly (1), characterized in that: It also includes a pressurization assembly (2), an injection head assembly (3), a flip-bar assembly (4), a parallel orientation receiving assembly (5), and a drying assembly (6); The pressurizing assembly (2) includes a lead screw slider (204) and a lead screw gear (208), the injection head assembly (3) includes a piston rod (303), the flip rod assembly (4) includes a flip rod (402), and the drying assembly (6) includes an outer gear ring (603) and a fan plate (606). A rotatable pressure screw (203) is provided at the top center of the housing assembly (1). A large gear (208) of the screw is inserted into one end of the pressure screw (203). A slider (204) of the screw slides on the top of the housing assembly (1) and is connected to the pressure screw (203). A syringe (301) is installed on the right side of the top of the housing assembly (1). The head end of the piston rod (303) is inserted into the syringe (301), and the end of the piston rod (303) is in contact with the slider (204). A nozzle (304) is installed at the head end of the syringe (301). The middle part of the rotating rod (402) is screwed to the front end of the housing assembly (1). A rotatable receiving tube (503) is installed on the upper end of the rotating rod (402). The upper end of the rotating rod (402) is also fixedly connected to a corner seat (601). A follower inner ring (605) is screwed to the inner surface of the corner seat (601). A fan plate (606) is connected to the outside of the follower inner ring (605). An outer gear ring (603) is connected to the outer end of the fan plate (606). After the rotating rod (402) rotates to the retraction position, the outer gear ring (603) just meshes with the lead screw large gear (208). The housing assembly (1) includes an upper housing (101), a self-closing fan (103), an upper cover (105), and a bottom cover (109). The bottom end of the upper housing (101) is fixedly connected to a middle housing (102), and the bottom end of the middle housing (102) is fixedly connected to a lower housing (104). A main control board (106) is installed and fixed on one side of the inner cavity of the upper housing (101). The upper cover (105) is fixedly installed on the top of the upper housing (101). A low-voltage power supply (107) and a booster (108) are respectively installed and fixed on both sides of the inner cavity of the lower housing (104). The bottom cover (109) is fixedly connected to the bottom end of the lower housing (104), and the booster (108) and the low-voltage power supply (107) are both electrically connected to the main control board (106). A self-closing fan (103) is hinged to the rear side of the middle shell (102). The flip rod assembly (4) also includes a side base (401) and a flipping electric cylinder (406). The side base (401) is fixedly connected to the front side of the middle housing (102). A flipping shaft (403) is fixedly connected to the middle part of the flip rod (402). The flipping shaft (403) is rotatably connected to the side base (401). A flipping base (405) is fixedly connected to the front side of the top cover (105). The top of the main body of the flipping electric cylinder (406) is rotatably connected to the flipping base (405). A flipping drive shaft (404) is fixedly connected to the lower end of the flip rod (402). The telescopic rod of the flipping electric cylinder (406) is rotatably connected to the flipping drive shaft (404). The flipping electric cylinder (406) is electrically connected to the main control board (106). The drying component (6) also includes a follower shaft (604), which is fixedly connected to the inner side of the corner seat (601), and the follower inner ring (605) is rotatably connected in the follower shaft (604).

2. The portable low-voltage electrospinning device for wound dressings according to claim 1, characterized in that: The pressurizing assembly (2) also includes a lead screw rear seat (201), a lead screw front seat (202), a guide column (206), a stand (207), a drive motor (209), and a drive pinion (210). The lead screw rear seat (201) and the lead screw front seat (202) are respectively fixedly connected to the two sides of the top of the upper cover (105). The two ends of the pressurizing lead screw (203) are respectively rotatably connected to the lead screw rear seat (201) and the lead screw front seat (202). Guide holes (205) are opened at both ends of the bottom of the lead screw slider (204). The guide column (206) 06) The screw slider (204) is fixedly connected to the top surface of the cover (105) through the support (207) at both ends. The screw slider (204) is slidably connected to the guide column (206) through the guide hole (205). The drive motor (209) is installed and fixed on the left side of the inner cavity of the upper housing (101) and electrically connected to the main control board (106). The rotation of the drive motor (209) passes through the side wall of the upper housing (101) and is fixedly connected to the drive pinion (210). The drive pinion (210) meshes with the screw gear (208).

3. A portable low-voltage electrospinning device for wound dressings according to claim 2, characterized in that: The injection head component (3) also includes a pressure sleeve (302) and a wire (305). The outside of the syringe (301) is fixedly connected to the top of the lead screw front seat (202) through the pressure sleeve (302). The nozzle (304) is electrically connected to the booster (108) through the wire (305).

4. A portable low-voltage electrospinning device for wound dressings according to claim 1, 2, or 3, characterized in that: The parallel orientation receiving assembly (5) also includes a cylinder seat (501), a cylinder shaft (502), a pulley motor (505), and a drive pulley (506). The cylinder seat (501) is connected to the upper end of the flipping rod (402). The cylinder shaft (502) is rotatably connected in the cylinder seat (501). The receiving cylinder (503) is inserted and fixed at one end of the cylinder shaft (502). The other end of the cylinder shaft (502) is inserted and fixed with a rotating pulley (504). The pulley motor (505) is mounted and fixed on the outer side of the flipping rod (402). The drive pulley (506) is inserted and fixed in the rotating shaft of the pulley motor (505). A connecting belt (507) is sleeved between the rotating pulley (504) and the drive pulley (506). The pulley motor (505) is electrically connected to the main control board (106).

5. A portable low-voltage electrospinning device for wound dressings according to claim 1, 2, or 3, characterized in that: Heating wires (602) are installed at both the upper and lower ends of the corner bracket (601), and the heating wires (602) are electrically connected to the main control board (106).

6. A portable low-voltage electrospinning device for wound dressings according to claim 4, characterized in that: Heating wires (602) are installed at both the upper and lower ends of the corner bracket (601), and the heating wires (602) are electrically connected to the main control board (106).

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