Wound care bandage and auxiliary equipment thereof

Abstract

The invention relates to the technical field of medical equipment, in particular to a wound nursing bandage and auxiliary equipment thereof.The wound nursing bandage comprises a bandage body, mounting bags, air bags, a bidirectional air guiding mechanism, a pressurizing mechanism and a linkage mechanism, the multiple mounting bags are arranged on one side of the bandage body side by side, and the air bags are placed in the mounting bags; the two-way air guiding mechanism is arranged on one side of the air bag, the pressurizing mechanism is connected to the two-way air guiding mechanism, and the linkage mechanism is arranged in the fixing base and connected with the pressurizing mechanism. The multiple installation bags are arranged on one side of the bandage body, the air bag is arranged in the installation bags, and the tedious filling material laying step is simplified into installation and positioning of the air bag; medical staff only need to place the corresponding air bag in the mounting bag of the target pressurization area, local pressurization preparation work can be rapidly completed, the operation time is greatly shortened, the secondary stimulation risk caused by complex operation is reduced, and the system is particularly suitable for emergency treatment, community nursing and other scenes with high efficiency requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular to a wound care bandage and an auxiliary device thereof. BACKGROUND

[0002] In the clinical scenarios of trauma hemostasis, chronic wound healing, postoperative swelling management, etc., precise pressure is a key means to promote wound recovery - reasonable local pressure can improve microcirculation of the wound, reduce tissue edema, reduce exudate volume, and at the same time avoid excessive pressure on non-target areas, which can block blood circulation. At present, the wound care bandages widely used in clinical practice mainly include elastic bandages and inelastic bandages, and the core application logic of both is "direct wrapping pressure". That is, through the tension or wrapping layers of the bandage, a whole wrapping pressure is formed on the limbs, trunk and other parts where the wound is located. The operation process is simple, the cost is relatively low, and it is suitable for large-area wound care scenarios that do not require differential pressure.

[0003] However, with the increasing demand for wound care refinement, complex wounds in clinical practice require "differential pressure" on specific local areas. At this time, the technical limitations of existing direct wrapping bandages are fully exposed.

[0004] In related technologies, the existing scheme cannot realize local pressure differentiation through the bandage itself, and medical staff need to additionally use the "filling auxiliary pressure" mode: first, lay a cotton pad, gauze or sponge filling material in the target pressure area, form a local pressure gradient through the thickness difference of the filling material, and then wrap the bandage. This process requires repeated adjustment of the size, thickness and laying position of the filling material to ensure its accurate fit to the target area, and the wrapping bandage needs to be controlled simultaneously to avoid displacement or deformation of the filling material. The operation takes a long time, and the filling material needs to be re-laid when the bandage is replaced, further increasing the complexity of the nursing process and easily causing secondary irritation to the wound. The core defect of the filling cotton pad auxiliary pressure is that the pressure is uncontrollable and cannot meet the standardization requirements of clinical pressure accuracy. Due to the low and inconsistent elastic modulus of cotton pads, gauze and other materials, the deformation degree of different batches and different materials of the filling material under pressure is different. Even if the same thickness of the filling material is laid, the actual pressure formed also has significant fluctuations. In actual clinical practice, most filling auxiliary pressure operations do not meet the pressure standard - either the minimum pressure required for treatment is insufficient to improve venous return, or the local tissue is at risk of ischemia and necrosis due to pressure exceeding the safety threshold, directly affecting wound healing efficiency and even exacerbating the condition. SUMMARY

[0005] In order to solve the problem that the wound care bandage is currently directly wound, in the local precise pressure scene, needs to rely on the filling material auxiliary, there are problems such as complicated operation, unstable filling material, and no standard for manual winding tension, which leads to insufficient pressure control precision, affects the nursing efficiency and treatment effect, and is difficult to meet the needs of clinical wound care refinement, standardization and high efficiency, the present application provides a wound care bandage and its auxiliary equipment.

[0006] The wound care bandage and its auxiliary equipment provided by the present application adopt the following technical scheme: The wound care bandage and its auxiliary equipment comprise: The bandage body is provided with a plurality of installation bags on one side, and the installation bags are placed with air bags; The bidirectional air guide mechanism is used for inflating and deflating the air bag, and is arranged on one side of the air bag, comprising an air flow guide pipe, a first flow guide cylinder, a second flow guide cylinder, a third flow guide cylinder and a sealing ball, the air flow guide pipe is arranged on one side of the air bag, and one end is located inside the air bag and the other end is located outside the air bag, the first flow guide cylinder is arranged inside the air flow guide pipe and located at one end outside the air bag, the second flow guide cylinder is slidably connected in the air flow guide pipe, and one end abuts against one end inside the air flow guide pipe, the third flow guide cylinder and the sealing ball are both slidably connected in the second flow guide cylinder, and the sealing ball is located between the other end of the second flow guide cylinder and the third flow guide cylinder; The pressure mechanism is used for pressurizing the air bag, and is connected to the bidirectional air guide mechanism, comprising a fixed seat, a supporting cylinder and an air guide pipe, the supporting cylinder is installed in the fixed seat, one end of the air guide pipe is connected to the supporting cylinder, and the other end is connected to the air flow guide pipe; The linkage mechanism is arranged in the fixed seat and connected with the pressure mechanism.

[0007] By adopting the above technical scheme, the cumbersome material laying step is simplified to installation and positioning of the air bag by arranging multiple installation bags on one side of the bandage body and internally arranging the air bag, medical staff only needs to place the corresponding air bag in the installation bag of the target pressurization area, and then the local pressurization preparation work can be quickly completed, the operation time is greatly shortened, the secondary irritation risk caused by complex operation is reduced, and the device is especially suitable for scenes with high efficiency requirements such as emergency and community nursing. By the precise cooperation of the airflow guide pipe, the first guide cylinder, the second guide cylinder, the third guide cylinder and the sealing ball, the air bag can be precisely inflated and deflated, pressure fluctuations caused by manual operation are avoided, and the fixed seat, the supporting cylinder and the air guide pipe in the pressurization mechanism work cooperatively with the linkage mechanism, so that stable and accurate pressure can be applied to the air bag according to clinical requirements, the pressure is controlled within the required threshold value, the pressure requirement around the wound surface can be accurately realized, the treatment effect is significantly improved, and the bandage body is combined with the air bag through multiple installation bags. According to the shape, size and pressurization requirement of the wound surface, the installation position and quantity of the air bag can be flexibly adjusted to realize differential pressurization. Whether it is overall pressurization of a large-area wound surface or local accurate pressurization of a complex wound surface, the device can effectively cope with it, greatly expands the clinical application range of the device, and meets the diversified nursing requirements of different patients and different wound types.

[0008] Optionally, the bidirectional air guide mechanism further comprises a first reset spring and a second reset spring, the first reset spring is arranged in the airflow guide pipe and abuts between the first guide cylinder and the second guide cylinder, and the second reset spring is arranged in the second guide cylinder and abuts between one end of the second guide cylinder and the second guide cylinder.

[0009] By adopting the above technical scheme, the elastic force of the first reset spring and the second reset spring enables the air bag to be quickly reset by its own elastic restoring force after inflation and deflation, ensures that the airflow channel is closed in time, prevents the air bag from leaking, thereby maintaining the stability of the pressure, and also reduces the risk of failure caused by displacement of parts, thereby improving the durability of the device.

[0010] Optionally, the pressurization mechanism further comprises a first sealing plug, a second sealing plug and a one-way valve pipe, the first sealing plug and the second sealing plug are both sealingly and slidably connected in the supporting cylinder and are symmetrically arranged, and the one-way valve pipe is fixed at one end of the supporting cylinder and communicates with the internal cavity of the supporting cylinder and is located between the first sealing plug and the second sealing plug.

[0011] By adopting the technical scheme, the one-way stable transmission of the gas in the supporting cylinder is realized by the design of the first sealing plug, the second sealing plug and the one-way valve pipe, the sealing plugs symmetrically arranged cooperate with the one-way valve pipe, which can not only ensure the accurate flow direction of the gas to the air bag during the pressurization process and avoid the backflow of the gas, but also can enhance the sealing performance of the mechanism to prevent the leakage of the gas, thereby ensuring the stable and accurate pressure output to the air bag.

[0012] Optionally, the linkage mechanism comprises a first driven rod and a second driven rod, one end of the first driven rod is coaxially fixed to the first sealing plug, and a through hole is arranged at the axial center of the first sealing plug and the first driven rod, one end of the first driven rod is coaxially fixed to the second sealing plug, the other end of the first driven rod slides through the through hole, and the length of the second driven rod is greater than that of the first driven rod.

[0013] By adopting the technical scheme, a stable force transmission path is constructed, and the movement of the power source is accurately converted into the linear reciprocating movement of the first sealing plug and the second sealing plug by the first driven rod and the second driven rod, so as to realize the stable and continuous pressurization operation of the air bag and ensure the continuity of the pressure supply.

[0014] Optionally, the linkage mechanism further comprises a linkage gear, a crankshaft, a first push-pull rod and a second push-pull rod, the linkage gear is rotationally connected in the fixed seat and is symmetrically arranged with two linkage gears, the two linkage gears are meshed with each other, one end of the crankshaft is rotationally connected in the fixed seat, and the other end of the crankshaft is coaxially fixed with the linkage gear, one end of the first push-pull rod and one end of the second push-pull rod are rotationally connected on the crankshaft in a staggered manner, the other end of the first push-pull rod is rotationally connected on the first driven rod, and the other end of the second push-pull rod is rotationally connected on the second driven rod.

[0015] By adopting the technical scheme, the rotational movement is efficiently converted into linear movement by gear meshing transmission and eccentric rotation of the crankshaft, which not only can flexibly control the movement stroke and speed of the first sealing plug and the second sealing plug, but also can realize fine adjustment of the pressurization frequency and intensity of the air bag, so as to meet the pressure demand in different wound care scenarios.

[0016] Optionally, the linkage mechanism further comprises a driving gear, the driving gear is rotationally connected in the fixed seat and is meshed with one of the linkage gears, and a transmission rod is coaxially fixed on the driving gear, one end of the transmission rod protrudes from the top of the fixed seat.

[0017] By adopting the above technical scheme, the meshing of the driving gear and the linkage gear and the setting of the transmission rod provide an external power input interface for the equipment, the whole linkage mechanism can be conveniently driven to operate by rotating the transmission rod, the manual control pressurization process is realized, the operation is intuitive and flexible, and the equipment is especially suitable for use in the case of no power supply or temporary rapid pressure adjustment, and the emergency adaptability of the equipment is improved.

[0018] Optionally, a micro servo motor is fixed at the top of the fixed seat, and an output shaft of the micro servo motor is coaxially fixed with one of the linkage gears.

[0019] By adopting the above technical scheme, the micro servo motor at the top of the fixed seat is coaxially fixed with the linkage gear, automatic pressurization control is realized, the servo motor can accurately adjust the rotating speed and torque according to a preset program or an external instruction, so that the pressure size and pressurization rate of the air bag are accurately controlled, the pressure control precision is higher than that of manual operation, the working strength of medical staff is reduced, and the nursing efficiency is improved.

[0020] Optionally, a rotating groove is arranged at the top end axis of the transmission rod, a rotating rod is inserted into the rotating groove, the rotating rod is connected to one end of a crank handle, a clamping groove is arranged at the top of the fixed seat, and the crank handle is clamped in the clamping groove.

[0021] By adopting the above technical scheme, the rotating groove at the top end of the transmission rod, the cooperation of the rotating rod and the crank handle, and the design of the clamping groove enable medical staff to stably rotate the transmission rod with less effort in the manual pressurization mode, the crank handle is convenient to hold and apply force, and the crank handle can be stored in the clamping groove when not in use, so that no extra space is occupied, a reliable auxiliary means is provided for manual operation, and the equipment can still be normally used when the automatic system fails.

[0022] Optionally, the bandage body is internally filled with a sponge pad layer.

[0023] By adopting the above technical scheme, the sponge pad layer filled in the bandage body can effectively buffer the pressure between the bandage and the skin of a patient, improve the comfort of the patient when wearing the bandage, and reduce problems such as pressure marks and friction damage caused by direct contact of the bandage with the skin, and meanwhile, the sponge pad layer has a certain moisture absorption property, can absorb wound exudate, keeps the wound dry, and creates a good environment for wound healing.

[0024] Optionally, threads are arranged on the outer wall of the first flow guide cylinder and the inner wall of the airflow guide pipe, and the first flow guide cylinder and the airflow guide pipe are connected in a position-adjustable manner through the threads.

[0025] By adopting the technical scheme, the threaded connection of the first flow guide cylinder and the airflow guide pipe enables flexible adjustment of the position of the first flow guide cylinder, and medical personnel can adjust the depth of the first flow guide cylinder in the airflow guide pipe according to actual use requirements, thereby changing the compression amount of the first return spring, and realizing individualized control of the inflation and deflation speed and pressure of the air bag, and enhancing the adaptability and flexibility of the equipment.

[0026] To sum up, the present application includes at least one of the following beneficial technical effects: By providing multiple installation bags on one side of the bandage body and built-in air bags, the complicated material laying step is simplified to air bag installation and positioning. Medical personnel only need to place the corresponding air bag in the installation bag of the target compression area to quickly complete the local compression preparation work, greatly shortening the operation time and reducing the risk of secondary irritation caused by complex operation, especially suitable for scenes with high efficiency requirements such as emergency and community nursing. By precise cooperation of the airflow guide pipe, the first flow guide cylinder, the second flow guide cylinder, the third flow guide cylinder and the sealing ball, precise inflation and deflation of the air bag is realized, and pressure fluctuations caused by manual operation are avoided. By the cooperation of the fixed seat, the supporting cylinder and the air guide pipe in the pressure mechanism and the linkage mechanism, stable and accurate pressure can be applied to the air bag according to clinical needs, ensuring that the pressure is controlled within the required threshold for treatment, and the pressure requirement around the wound can be accurately realized, significantly improving the treatment effect. The combination of the bandage body and the air bag through multiple installation bags can flexibly adjust the installation position and quantity of the air bag according to the shape, size and compression requirement of the wound, realize differentiated compression, effectively cope with both overall compression of large-area wounds and local precise compression of complex wounds, greatly expand the clinical application range of the equipment, and meet the diversified nursing needs of different patients and different wound types. The linkage mechanism establishes a stable force transmission path, the first driven rod and the second driven rod accurately convert the movement of the power source into linear reciprocating motion of the first sealing plug and the second sealing plug, realize stable and continuous compression operation of the air bag, ensure the continuity of pressure supply, and use gear meshing transmission and eccentric rotation of the crankshaft to efficiently convert rotary motion into linear motion. Not only can the movement stroke and speed of the first sealing plug and the second sealing plug be flexibly controlled, but also the air bag compression frequency and intensity can be finely adjusted to meet the pressure requirements in different wound care scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is the external structure schematic diagram of the wound care bandage and its auxiliary equipment in the embodiment.

[0028] Figure 2 is the local enlarged structure schematic diagram of the bandage body in the embodiment.

[0029] Figure 3 is a schematic view of a profile structure of a bidirectional air guide mechanism in the embodiment.

[0030] Figure 4 is a schematic view of a fixed seat and its overall connection structure in the embodiment.

[0031] Figure 5 is a schematic view of a pressurizing mechanism structure in the embodiment.

[0032] Figure 6 is a schematic view of a linkage mechanism structure in the embodiment.

[0033] 1, bandage body; 2, mounting bag; 3, air bag; 4, bidirectional air guide mechanism; 41, air flow guide pipe; 42, first flow guide cylinder; 43, second flow guide cylinder; 44, third flow guide cylinder; 45, sealing ball; 46, first return spring; 47, second return spring; 5, pressurizing mechanism; 51, fixed seat; 52, supporting cylinder; 53, air guide pipe; 54, first sealing plug; 55, second sealing plug; 56, one-way valve pipe; 6, linkage mechanism; 61, first driven rod; 62, second driven rod; 63, linkage gear; 64, crankshaft; 65, first push-pull rod; 66, second push-pull rod; 67, driving gear; 7, micro servo motor; 8, transmission rod; 9, rotating groove; 10, handle; 11, rotating rod; 12, clamping groove. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The application is described in further detail.

[0035] The application discloses a wound care bandage and an auxiliary device thereof.

[0036] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] Reference Figure 1 and Figure 2The utility model provides a kind of wound care bandage and its auxiliary equipment, including bandage body 1, installation bag 2, air bag 3, two-way air guide mechanism 4, pressurizing mechanism 5 and linkage mechanism 6, bandage body 1 side parallelly arranged multiple installation bag 2, air bag 3 is placed in installation bag 2;Two-way air guide mechanism 4, for air bag 3 is filled, and two-way air guide mechanism 4 is arranged in air bag 3 side, including airflow guide pipe 41, first guide cylinder 42, second guide cylinder 43, third guide cylinder 44 and sealing ball 45, pressurizing mechanism 5 is connected on two-way air guide mechanism 4, including fixed seat 51, support cylinder 52 and air pipe 53, linkage mechanism 6 is arranged in fixed seat 51, and is connected with pressurizing mechanism 5, utilize in bandage body 1 side multiple installation bag 2, and built-in air bag 3, the complicated filling material laying step is simplified as air bag installation and positioning, medical staff only needs to place corresponding air bag 3 in the installation bag 2 of target pressurizing area, can quickly complete local pressurizing preparation work, greatly shorten operating time, reduce the secondary irritation risk caused by complex operation, especially suitable for emergency, community nursing etc. The scene of high efficiency requirement, utilize the precise cooperation of airflow guide pipe 41, first guide cylinder 42, second guide cylinder 43, third guide cylinder 44 and sealing ball 45, realize the accurate inflation of air bag 3, avoid the pressure fluctuation generated by manual operation, simultaneously, fixed seat 51 in pressurizing mechanism 5, support cylinder 52 and air pipe 53 and linkage mechanism 6 work cooperatively, can exert stable, accurate pressure to air bag 3 according to clinical needs, ensure that pressure control is in the threshold value required by treatment, can accurately realize the pressure requirement around wound surface, significantly improve treatment effect, and bandage body 1 is combined with air bag 3 through multiple installation bag 2, can flexibly adjust the installation position and quantity of air bag 3 according to wound shape, size and pressurizing demand, realizes differentiation pressurizing, whether it is the overall pressurizing of large-area wound surface or the local accurate pressurizing of complex wound surface, can effectively cope, greatly expand the clinical application range of equipment, satisfy the diversified nursing needs of different patients, different wound types.

[0038] Specifically, airflow guide pipe 41 is arranged on one side of air bag 3, and one end is located inside air bag 3, and the other end is located outside air bag 3, first guide cylinder 42 is arranged inside airflow guide pipe 41 and located at one end outside air bag 3, second guide cylinder 43 is slidably connected inside airflow guide pipe 41, and one end abuts one end inside air bag 3 in airflow guide pipe 41, third guide cylinder 44 and sealing ball 45 are both slidably connected inside second guide cylinder 43, and sealing ball 45 is located between the other end of second guide cylinder 43 and third guide cylinder 44; Support cylinder 52 is installed in fixed seat 51, one end of air pipe 53 is connected to support cylinder 52, and the other end is connected to airflow guide pipe 41.

[0039] Refer to Figure 3 And Figure 4In the embodiment of the present application, the bidirectional air guide mechanism 4 further comprises a first return spring 46 and a second return spring 47. The elastic force of the first return spring 46 and the second return spring 47 enables the air bag 3 to be quickly reset by its own elastic restoring force after the inflation and deflation are completed, ensuring that the air flow channel is closed in time to prevent the air bag 3 from leaking, thereby maintaining the stability of the pressure, and at the same time reducing the risk of failure caused by the displacement of components and improving the durability of the equipment.

[0040] The first return spring 46 is arranged in the air flow guide pipe 41 and abuts between the first flow guide cylinder 42 and the second flow guide cylinder 43. The second return spring 47 is arranged in the second flow guide cylinder 43 and abuts between one end of the second flow guide cylinder 43 and the second flow guide cylinder 43.

[0041] In the embodiment of the present application, the pressurizing mechanism 5 further comprises a first sealing plug 54, a second sealing plug 55, and a one-way valve pipe 56. The first sealing plug 54 and the second sealing plug 55 are both sealingly connected inside the supporting cylinder 52 and are symmetrically arranged. The one-way valve pipe 56 is fixed at one end of the supporting cylinder 52 and communicates with the internal cavity of the supporting cylinder 52, and is located between the first sealing plug 54 and the second sealing plug 55. By using the design of the first sealing plug 54, the second sealing plug 55, and the one-way valve pipe 56, the one-way stable transmission of the gas in the supporting cylinder 52 is realized. The symmetrically arranged sealing plugs cooperate with the one-way valve pipe 56 to not only ensure the accurate flow direction of the gas to the air bag 3 during the pressurizing process and prevent backflow of the gas, but also enhance the sealing performance of the mechanism to prevent gas leakage, thereby ensuring stable and accurate pressure output to the air bag 3.

[0042] Referring to Figure 5 and Figure 6 , specifically, in the embodiment of the present application, the linkage mechanism 6 comprises a first driven rod 61, a second driven rod 62, a linkage gear 63, a crankshaft 64, a first push-pull rod 65, and a second push-pull rod 66. The gear meshing transmission and the eccentric rotation of the crankshaft 64 efficiently convert the rotary motion into linear motion, which not only flexibly controls the movement stroke and speed of the first sealing plug 54 and the second sealing plug 55, but also realizes fine adjustment of the pressurizing frequency and intensity of the air bag 3 to meet the pressure requirements in different wound care scenarios. The first driven rod 61 and the second driven rod 62 accurately convert the movement of the power source into linear reciprocating motion of the first sealing plug 54 and the second sealing plug 55, realizing stable and continuous pressurizing operation of the air bag 3 and ensuring the continuity of pressure supply.

[0043] In the embodiment of the application, the first driven rod 61 is coaxially fixed at one end of the first sealing plug 54, and a through hole is provided at the axial center of the first sealing plug 54 and the first driven rod 61, one end of the first driven rod 61 is coaxially fixed on the second sealing plug 55, and the other end is slidably arranged through the through hole, the length of the second driven rod 62 is greater than that of the first driven rod 61, the linkage gear 63 is rotationally connected in the fixed seat 51, and two linkage gears 63 are symmetrically arranged and meshed with each other, one end of the crankshaft 64 is rotationally connected in the fixed seat 51, and the other end is coaxially fixed with the linkage gear 63, one end of the first push-pull rod 65 and the second push-pull rod 66 is rotationally connected on the crankshaft 64, the other end of the first push-pull rod 65 is rotationally connected on the first driven rod 61, and the other end of the second push-pull rod 66 is rotationally connected on the second driven rod 62.

[0044] Specifically, the linkage mechanism 6 further comprises a driving gear 67, the driving gear 67 is rotationally connected in the fixed seat 51 and meshes with one of the linkage gears 63, and a transmission rod 8 is coaxially fixed on the driving gear 67, one end of the transmission rod 8 protrudes from the top of the fixed seat 51, the meshing of the driving gear 67 and the linkage gear 63 and the arrangement of the transmission rod 8 provide an external power input interface for the device, and the whole linkage mechanism 6 can be conveniently driven to operate by rotating the transmission rod 8, so as to realize manual control of the pressurization process, the operation is intuitive and flexible, and the device is especially suitable for use in the case of no power supply or temporary rapid pressure adjustment, thereby improving the emergency adaptability of the device.

[0045] A micro servo motor 7 is fixed on the top of the fixed seat 51, and an output shaft of the micro servo motor 7 is coaxially fixed with one of the linkage gears 63, the micro servo motor 7 on the top of the fixed seat 51 is directly coaxially fixed with the linkage gear 63, thereby realizing automatic pressurization control, the servo motor can accurately adjust the rotating speed and torque according to a preset program or an external instruction, so as to accurately control the pressure and pressurization rate of the air bag 3, the pressure control precision is higher than that of manual operation, the working intensity of medical staff is reduced, and the nursing efficiency is improved.

[0046] A rotating groove 9 is arranged at the axial center of the top end of the transmission rod 8, a rotating rod 11 is inserted into the rotating groove 9, the rotating rod 11 is connected to one end of a crank 10, and a clamping groove 12 is arranged on the top of the fixed seat 51, the crank 10 is clamped in the clamping groove 12, the rotating groove 9 at the top end of the transmission rod 8, the rotating rod 11 and the crank 10 are matched, and the clamping groove 12 is designed, so that the medical staff can more labor-savingly and stably rotate the transmission rod 8 in the manual pressurization mode, the crank 10 is convenient to hold and apply force, and can be stored in the clamping groove 12 when not in use, without occupying extra space, and a reliable auxiliary means is provided for manual operation, so that the device can still be normally used when the automatic system fails.

[0047] In the embodiment of the present application, the inside of the bandage body 1 is filled with a sponge pad layer. The sponge pad layer filled in the inside of the bandage body 1 can effectively buffer the pressure between the bandage and the skin of the patient, improve the comfort of the patient when wearing, and reduce problems such as pressure marks and friction damage caused by direct contact of the bandage with the skin. In addition, the sponge pad layer has certain moisture absorption, can absorb wound exudate, keeps the wound dry, and creates a good environment for wound healing.

[0048] Specifically, the outer wall of the first flow guide cylinder 42 and the inner wall of the airflow guide pipe 41 are provided with threads, and the first flow guide cylinder 42 is connected with the airflow guide pipe 41 in a position-adjustable manner through the threads. The first flow guide cylinder 42 is connected with the airflow guide pipe 41 through threads, so that the position of the first flow guide cylinder 42 can be flexibly adjusted. Medical staff can adjust the depth of the first flow guide cylinder 42 in the airflow guide pipe 41 according to actual use requirements, and then change the compression amount of the first return spring 46, so as to realize personalized control of the inflation and deflation speed and pressure of the air bag 3, and enhance the adaptability and flexibility of the equipment.

[0049] The implementation principle of the wound care bandage and the auxiliary equipment thereof in the embodiment of the present application is as follows: 1. Preparation stage: Medical staff places the air bag 3 in the installation bag 2 at the corresponding position of the bandage body 1 according to the position, size and pressure requirement of the wound of the patient. Since the inside of the bandage body 1 is filled with a sponge pad layer, a comfortable wearing experience can be provided for the patient in advance. In addition, the sponge pad layer can also absorb wound exudate. Furthermore, by adjusting the threaded connection position of the first flow guide cylinder 42 and the airflow guide pipe 41, the gas flow path and flow rate are preliminarily set to adapt to the subsequent pressure operation.

[0050] 2. Pressure operation stage: Manual pressure: insert the crank 10 into the rotating groove 9 at the top end of the transmission rod 8, rotate the transmission rod 8 by using the crank 10, rotate the transmission rod 8, drive the driving gear 67 to rotate, the driving gear 67 is engaged with the linkage gear 63, so that the linkage gear 63 rotates, the linkage gear 63 converts the rotary motion into linear motion through the crankshaft 64, drives the first push-pull rod 65 and the second push-pull rod 66 to act, and then drives the first driven rod 61 and the second driven rod 62, so that the first sealing plug 54 and the second sealing plug 55 make linear reciprocating motion in the supporting cylinder 52. Under the action of the one-way valve pipe 56, the gas is transmitted to the airflow guide pipe 41 in one direction, and the air bag 3 is pressurized.

[0051] Automatic pressure: start the micro servo motor 7 at the top of the fixed seat 51, the output shaft of the micro servo motor 7 drives the linkage gear 63 to rotate, and the subsequent transmission process is the same as that of manual pressure. The micro servo motor 7 can accurately control the rotation speed and torque according to the preset program or external instruction, so as to accurately adjust the pressure and pressure rate of the air bag 3.

[0052] 3. Pressure maintaining and adjusting stage: in the process of pressurization, the first reset spring 46 and the second reset spring 47 in the bidirectional air guide mechanism 4 are on standby in real time, when the charging and discharging ends, the spring pushes the first flow guide cylinder 42, the second flow guide cylinder 43 and the sealing ball 45 to reset quickly by virtue of the elastic restoring force, closes the air flow channel in time, prevents the air bag 3 from leaking, maintains the pressure stable, and the like.

[0053] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A wound care bandage and its auxiliary equipment, characterized in that, include: The bandage body (1) has multiple installation bags (2) arranged side by side on one side, and an airbag (3) is placed inside the installation bag (2). A two-way air guide mechanism (4) is used to inflate and deflate the airbag (3). The two-way air guide mechanism (4) is located on one side of the airbag (3) and includes an airflow duct (41), a first guide tube (42), a second guide tube (43), a third guide tube (44), and a sealing ball (45). The airflow duct (41) is located on one side of the airbag (3), with one end inside the airbag (3) and the other end outside the airbag (3). The first guide tube (42) is located on the other side of the airbag (3). The airflow duct (41) is located at one end outside the airbag (3). The second guide tube (43) is slidably connected inside the airflow duct (41), and one end of the second guide tube (43) abuts against the end of the airflow duct (41) located inside the airbag (3). The third guide tube (44) and the sealing ball (45) are both slidably connected inside the second guide tube (43), and the sealing ball (45) is located between the other end of the second guide tube (43) and the third guide tube (44). A pressurizing mechanism (5) is used to pressurize the airbag (3), and the pressurizing mechanism (5) is connected to the bidirectional air guide mechanism (4), including a fixed seat (51), a support cylinder (52) and an air guide tube (53). The support cylinder (52) is installed in the fixed seat (51), and one end of the air guide tube (53) is connected to the support cylinder (52), and the other end is connected to the airflow duct (41). Linkage mechanism (6) is located inside the fixed base (51) and connected to the pressurizing mechanism (5).

2. The wound care bandage and its auxiliary equipment according to claim 1, characterized in that, The bidirectional airflow mechanism (4) further includes a first reset spring (46) and a second reset spring (47). The first reset spring (46) is disposed inside the airflow duct (41) and abuts between the first guide tube (42) and the second guide tube (43). The second reset spring (47) is disposed inside the second guide tube (43) and abuts between one end of the second guide tube (43) and the second guide tube (43).

3. The wound care bandage and its auxiliary equipment according to claim 1, characterized in that, The pressurizing mechanism (5) further includes a first sealing plug (54), a second sealing plug (55), and a one-way valve tube (56). The first sealing plug (54) and the second sealing plug (55) are both slidably connected inside the support cylinder (52) and are symmetrically arranged. One end of the one-way valve tube (56) is fixed on the support cylinder (52) and communicates with the internal cavity of the support cylinder (52), and is located between the first sealing plug (54) and the second sealing plug (55).

4. The wound care bandage and its auxiliary equipment according to claim 3, characterized in that, The linkage mechanism (6) includes a first driven rod (61) and a second driven rod (62). The first driven rod (61) is coaxially fixed to one end of the first sealing plug (54), and a through hole is provided through the axis of the first sealing plug (54) and the first driven rod (61). One end of the first driven rod (61) is coaxially fixed to the second sealing plug (55), and the other end slides through the through hole. The length of the second driven rod (62) is greater than that of the first driven rod (61).

5. The wound care bandage and its auxiliary equipment according to claim 4, characterized in that, The linkage mechanism (6) further includes a linkage gear (63), a crankshaft (64), a first push-pull rod (65), and a second push-pull rod (66). The linkage gear (63) is rotatably connected in the fixed seat (51), and two are symmetrically arranged, and the two linkage gears (63) mesh with each other. One end of the crankshaft (64) is rotatably connected in the fixed seat (51), and the other end is coaxially fixed with the linkage gear (63). One end of the first push-pull rod (65) and the second push-pull rod (66) are respectively rotatably connected to the crankshaft (64) with a offset. The other end of the first push-pull rod (65) is rotatably connected to the first driven rod (61), and the other end of the second push-pull rod (66) is rotatably connected to the second driven rod (62).

6. The wound care bandage and its auxiliary equipment according to claim 5, characterized in that, The linkage mechanism (6) also includes a drive gear (67), which is rotatably connected to the fixed base (51) and meshes with one of the linkage gears (63). A transmission rod (8) is coaxially fixed on the drive gear (67), and one end of the transmission rod (8) protrudes from the top of the fixed base (51).

7. The wound care bandage and its auxiliary equipment according to claim 5, characterized in that, A micro servo motor (7) is fixed to the top of the mounting base (51), and the output shaft of the micro servo motor (7) is coaxially fixed with one of the linkage gears (63).

8. The wound care bandage and auxiliary equipment according to claim 6, characterized in that, A rotating groove (9) is provided at the top center of the transmission rod (8), and a rotating rod (11) is inserted into the rotating groove (9). The rotating rod (11) is connected to one end of the crank handle (10), and a locking groove (12) is provided at the top of the fixed seat (51). The crank handle (10) is locked in the locking groove (12).

9. The wound care bandage and its auxiliary equipment according to claim 1, characterized in that, The inside of the bandage body (1) is filled with a sponge pad layer.

10. The wound care bandage and its auxiliary equipment according to claim 1, characterized in that, The outer wall of the first guide tube (42) and the inner wall of the airflow duct (41) are both provided with threads, and the first guide tube (42) and the airflow duct (41) are connected in an adjustable position by the threads.

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