Anti-adhesion burn dressing equipment

Abstract

The present invention relates to the technical field of auxiliary medicine application equipment for burn patients, specifically to an anti-adhesion burn dressing change device, comprising a chassis, an automatic gauze winding unit fixed on the chassis, and an anti-adhesion unit, wherein a through circular hole is provided in the middle of the chassis; the automatic gauze winding unit comprises a shaft sleeve fixed in the chassis, a bearing fixed on the outer circle of the shaft sleeve, a gear ring fixed on the outer ring of the bearing, and a core shaft threadedly connected to the end face of the gear ring, gauze is wound on the core shaft, and the core shaft can rotate coaxially around the circular hole; the anti-adhesion unit comprises a container box fixed on the surface of the chassis and a medicine dispensing mechanism arranged in the container box, the container box is located directly above the central axis of the circular hole, the lower end of the container box is provided with a conical medicine dispensing hole, and the medicine dispensing mechanism is used to block or open the medicine dispensing hole. The present invention can assist medical staff in completing gauze bandaging and performing anti-adhesion treatment on the wound during the dressing change process for hand burn wound care, thereby reducing the workload of medical staff and promoting wound recovery.

Description

Technical Field

[0001] The present invention relates to the technical field of devices for assisting in applying medicine to burn patients, in particular to an anti-adhesion burn dressing changing device. Background Art

[0002] Burn dressing change is a key step in the burn treatment process. It mainly involves cleaning, disinfecting, and changing dressings on burn wounds to promote wound healing, prevent and control infection, alleviate patient pain, and create favorable conditions for wound healing.

[0003] In burn accidents, hands are most susceptible to burns because they are often exposed to the outside world and easily come into contact with external objects. The dressing change care process after hand burns usually involves cleaning the wound first, making it as clean as possible without over-irritating the wound. The wound is then covered with a dressing and secured with gauze. During the next dressing change, medical staff will first carefully remove the gauze and the original dressing, then clean the wound again, replace it with a new dressing and gauze, and secure it. During the removal of the old gauze, the dressing or ointment will adhere the wound skin to the gauze because it is between the wound surface and the gauze. When the adhered gauze is removed, it will pull and tear the wound and the surrounding new tissue, causing the patient to feel severe pain. Forcibly separating the adhered gauze may damage the healing wound tissue, causing the wound to bleed again and delaying the healing process.

[0004] To address this phenomenon, the prior art "Anti-adhesion bandage for burn care" (Announcement No. CN211356234U) discloses an anti-adhesion bandage. The bandage is fixed to the periphery of the burn site and provided with a window-like design for exposing the wound surface. A cloth is covered on the window to isolate the wound surface. The covering cloth and the bandage are detachably fixed with Velcro. When the dressing needs to be changed, the cloth can be uncovered. After the dressing change is completed, the cloth is covered to re-isolate the wound. The cloth and the wound do not come into contact, thereby achieving the purpose of preventing adhesion. However, this prior art has the following technical problems:

[0005] 1. The operation process is cumbersome and inconvenient. When using the bandage of the existing technology, it is necessary to put the bandage on the burned part of the patient's arm, and then insert the lock of the bandage through the hole to tie the bandage. Due to the different body shapes of different patients, medical staff need to spend a lot of time trying different hole positions to adjust the tightness of the bandage. At the same time, medical staff also need to clean the wound and apply medicine. The operation is very cumbersome, which increases the workload of medical staff. The through holes on the bandage are arranged at multiple intervals. Therefore, it is difficult to accurately select the appropriate through holes to achieve the best binding effect when binding. The bandage may be too loose and cannot be effectively fixed, affecting its protection and isolation effect on the burn part; or the bandage may be too tight, causing discomfort to the patient, and may even hinder local blood circulation, which has an adverse effect on the recovery of the burn part.

[0006] 2. Increased difficulty in infection prevention and control: The cable tie has a window design. While this facilitates wound observation and dressing changes, the window is covered with Velcro, leaving a gap between the wound and the outside world. External bacteria can easily enter the wound area through the gap between the Velcro and the fabric, thereby infecting the wound. Furthermore, the Velcro may snag surrounding hair or clothing fibers during repeated application, causing discomfort or even skin damage to the patient. Furthermore, the Velcro's adhesion effect decreases with repeated use, and there is a risk that the fabric will not be firmly fixed, thus affecting the wound's isolation effect.

[0007] 3. Not conducive to wound recovery: In order to prevent gauze from adhering to the wound, the existing technology has designed a window-type structure, which uses cloth to cover the window to isolate the wound. In this way, the cloth will not come into contact with the wound skin. However, the burn wound will secrete a certain amount of exudate, which will cover the wound and is not conducive to wound healing and recovery. Therefore, medical staff need to frequently uncover the cloth to deal with the exudate, further increasing the burden on medical staff. At the same time, the cloth is also provided with a multi-layer structure, which is relatively thick and has poor air permeability. For burn patients, long-term use may cause the patient's skin to become stuffy and humid, affecting wound recovery. Summary of the Invention

[0008] The present invention provides an anti-adhesion burn dressing changing device, which can solve the problem that the bandage in the prior art is not only cumbersome to operate but also not conducive to the recovery of the burn wound when changing the dressing for hand burn care.

[0009] The present application provides the following technical solution: an anti-adhesion burn dressing changing device, comprising a chassis, an automatic gauze winding unit fixed to the chassis, and an anti-adhesion unit, wherein a through circular hole is provided in the middle of the chassis;

[0010] The gauze automatic winding unit includes a sleeve fixed in the chassis, a bearing fixed on the outer circle of the sleeve, a gear ring fixed on the outer ring of the bearing, and a core shaft threadedly connected to the end face of the gear ring. Gauze is wound on the core shaft and the core shaft can rotate coaxially around the circular hole.

[0011] The anti-adhesion unit includes a container box fixed on the surface of the chassis and a medicine discharging mechanism arranged in the container box. The container box is located directly above the central axis of the circular hole. A conical medicine discharging hole is provided at the lower end of the container box. The medicine discharging mechanism is used to block or open the medicine discharging hole.

[0012] Beneficial effects:

[0013] 1. Easy to operate and reduces the workload of medical staff. The device of the present invention can assist in dressing changes for burn care on the arm. When performing dressing changes, the medical staff cleans the wound and only needs to pass the patient's arm through the circular hole in the middle of the chassis, and then start the device. The core shaft in the automatic gauze winding unit can rotate coaxially around the circular hole, so that the gauze on the core shaft gradually wraps around the patient's burn part, assisting the medical staff to complete the gauze bandage treatment of the arm wound, thereby greatly reducing the operating steps in the medical staff's nursing work, saving operation time, reducing labor intensity, and reducing the workload of medical staff.

[0014] 2. Automatically discharge medicine, prevent gauze from sticking, and promote wound recovery: The patient's arm is inserted into the round hole so that the burned area is under the container box. The container box can be filled with medicine to prevent the gauze from sticking to the wound skin, such as Vaseline. The device is provided with a corresponding button. Medical staff can easily operate the medicine dispensing mechanism to open the medicine dispensing hole. The medicine will automatically flow out from the conical medicine dispensing hole and drip onto the burn area of ​​the wound, thereby keeping the wound moist and preventing the gauze from sticking to the wound skin. On the one hand, the medical staff's operating steps are omitted and the dressing change process is simplified. At the same time, after the gauze is wrapped around the wound, it can absorb the exudate of the wound, which is more conducive to wound healing and recovery than the existing technology.

[0015] Furthermore, the gauze automatic winding unit further comprises a driving motor fixed in the chassis and a driving gear fixed on the main shaft of the driving motor, wherein the driving gear is meshed with the ring gear.

[0016] Beneficial Effects: The combination of a drive motor and drive gear automates the gauze winding process. Medical personnel simply pass the patient's burned arm through the circular hole in the center of the chassis and start the drive motor, and the device automatically completes the gauze winding process. This eliminates the need to manually rotate the gauze roll for bandaging, significantly reducing steps and workload and intensity for medical personnel.

[0017] Furthermore, the medicine dispensing mechanism includes a micro stepping motor horizontally fixed in the container box, a driving gear fixed on the main shaft of the micro stepping motor, and a valve stem vertically arranged in the container box. A rack is fixed to the top of the valve stem, and the rack is engaged with the driving gear. A plug is fixed to the bottom end of the valve stem, and the plug is used to seal the medicine dispensing hole.

[0018] Beneficial effects: Medical staff can control the operation of the micro stepper motor through the device button. The motor main shaft drives the active gear to rotate, and the rack at the top of the valve stem engages with the active gear, so that the rotational motion of the motor main shaft is converted into linear motion of the valve stem, so that the plug at the bottom end of the valve stem can seal and open the medicine outlet hole, thereby realizing the medicine discharge and stop operation, significantly simplifying the dressing change process, reducing the operating steps, and greatly reducing the workload of medical staff; in addition, the micro stepper motor has precise angle control characteristics, which can accurately control the rotation angle of the active gear, and then accurately control the rise and fall distance of the valve stem, so that medical staff can accurately control the outflow of medicine according to the specific size of the patient's burn wound and actual needs, avoiding waste or insufficient use of medicine.

[0019] Furthermore, the plug at the bottom end of the valve stem is conical, the outer peripheral surface of the plug fits with the conical surface in the medicine outlet hole, and the plug is made of rubber.

[0020] Beneficial effects: The plug is made of rubber material with high elasticity, and the conical surface fits the medicine outlet hole, which can effectively seal the medicine outlet hole and prevent medicine leakage. The chemical stability of the rubber material reduces the possibility of damage due to corrosion, reduces the maintenance frequency and maintenance cost of the equipment, and medical staff can feel more at ease when operating the micro stepping motor to control the medicine discharge. There is no need to worry about medicine leakage or unstable medicine discharge, which reduces additional operations and adjustment steps, further improves the efficiency of dressing change, and reduces the workload.

[0021] Furthermore, a medicine adding chamber is provided in the container box, the medicine outlet is communicated with the medicine adding chamber, and the stem portion of the valve stem is slidably connected to the cavity wall of the medicine adding chamber.

[0022] Beneficial Effects: The sliding connection between the valve stem and the dosing chamber wall ensures stable and smooth movement. Medical staff can add a large amount of anti-adhesion agent to the dosing chamber at once, reducing the need for frequent dosing. They only need to replenish the dosing chamber when it's running low, significantly reducing operational steps.

[0023] Furthermore, a soft cushion is provided in the circular hole.

[0024] Beneficial effect: A soft pad is set in the round hole. When the patient passes the arm through the round hole for dressing change, the soft pad can support the bottom of the arm, making the patient feel more comfortable during the dressing change process, reducing the resistance caused by discomfort, and facilitating the smooth progress of the dressing change operation.

[0025] Furthermore, the chassis includes a backplate, an outer cover fixed on the edge of the backplate, a cylinder fixed in the middle of the backplate and a panel fixed on the end of the cylinder. There is an annular gap between the panel and the outer cover, and the rod of the core shaft is located in the annular gap.

[0026] Beneficial effect: After the back panel and the outer cover are fixed, the outer shell of the chassis is formed, which is convenient for the installation and fixation of various parts. There is a circular gap between the panel and the outer cover, so that when the core shaft is rotated by the driving motor, the circular gap can avoid the rotation trajectory of the core shaft to prevent interference.

[0027] Furthermore, a controller is provided in the chassis, and the controller is electrically connected to the drive motor and the micro stepping motor.

[0028] Beneficial effects: The controller can control the start and stop of the drive motor and the micro stepping motor, thereby realizing the gauze automatic winding unit to complete the gauze bandaging process, and controlling the medicine dispensing mechanism to open or close the medicine dispensing hole to complete the medicine dripping process, thereby realizing automatic control and improving the efficiency of dressing change. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the structural front view of the present invention.

[0030] Figure 2 for Figure 1 Left view of .

[0031] Figure 3 for Figure 1 Magnified view of the middle gauze area.

[0032] Figure 4 for Figure 1 Magnified view of the anti-adhesion unit in the middle. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The marks in the drawings of the specification include: back plate 1, drive motor 2, outer cover 3, drive gear 4, gear ring 5, anti-adhesion unit 6, gauze 7, physiological prosthesis 8, panel 9, bearing 10, cushion 11, circular hole 12, cylinder 13, medicine outlet hole 14, annular gap 15, core shaft 16, shoulder 17, locking cap 18, medicine adding chamber 19, plug cap 20, container box 21, driving gear 22, micro stepping motor 23, rack 24, seal 25, valve stem 26, plug 27.

[0035] Example 1

[0036] like Figures 1 to 4 As shown, the anti-adhesion burn dressing changing equipment includes a chassis, a gauze 7 automatic winding unit fixed on the chassis and an anti-adhesion unit 6. The chassis includes a backboard 1, an outer cover 3 fixed on the edge of the backboard 1, a cylinder 13 fixed in the middle of the backboard 1 and a panel 9 fixed on the end of the cylinder 13. A through circular hole 12 is provided in the center of the cylinder 13, and a soft pad 11 is provided in the circular hole 12.

[0037] The automatic winding unit for gauze 7 is located inside the chassis formed by fixing the back plate 1 and the outer cover 3. The automatic winding unit for gauze 7 includes a driving motor 2 fixed to the back plate 1, a driving gear 4 fixed to the main shaft of the driving motor 2, a sleeve fixed to the cylinder 13, a bearing 10 fixed to the outer circle of the sleeve, a gear ring 5 fixed to the outer ring of the bearing 10, and a core shaft 16 threadedly connected to the end face of the gear ring 5. The driving gear 4 is meshed with the gear ring 5. The rear end of the sleeve is fixed to the back plate 1 by screws. The inner ring of the bearing 10 is interference fit at the front end of the sleeve, and the gear ring 5 is interference fit on the outer ring of the bearing 10. The core shaft 16 is threadedly connected to the end face of the gear ring 5 in a horizontal direction. Figure 3 As shown, the gauze 7 is wound on one end of the core shaft 16 extending outward from the chassis, and a shoulder 17 is provided on the core shaft 16 for limiting the rolled gauze 7. The end of the core shaft 16 is threadedly connected with a locking cap 18 to prevent the gauze 7 from falling off the core shaft 16. When the driving motor 2 drives the driving gear 4 to rotate, the ring gear 5 rotates accordingly, so that the core shaft 16 can rotate coaxially around the circular hole 12, as shown in FIG. Figure 2 As shown, there is an annular gap 15 between the panel 9 and the outer cover 3 , and the rod portion of the core shaft 16 is located in the annular gap 15 .

[0038] like Figure 1 and Figure 4As shown, the anti-adhesion unit 6 includes a container box 21 fixed on the surface of the outer cover 3 and a medicine discharging mechanism arranged in the container box 21. The container box 21 is located directly above the central axis of the circular hole 12, and a conical medicine discharging hole 14 is provided at the lower end of the container box 21. The medicine discharging mechanism includes a micro-stepping motor 23 fixed horizontally in the container box 21, a driving gear 22 fixed on the main shaft of the micro-stepping motor 23, and a valve stem 26 vertically arranged in the container box 21. A rack 24 is fixed to the top of the valve stem 26, and the rack 24 is meshed with the driving gear 22. A plug 27 is fixed to the bottom end of the valve stem 26. The plug 27 is conical, and the outer peripheral surface of the plug 27 fits with the conical surface in the medicine discharging hole 14. The plug 27 is made of rubber. A dosing chamber 19 is also provided in the container box 21, and the drug outlet 14 is connected to the dosing chamber 19. A seal 25 is provided on the cavity wall of the dosing chamber 19, and the rod portion of the valve stem 26 is slidably connected to the seal 25. The driving gear 22 is driven to rotate by the micro stepping motor 23, and the rack 24 at the top of the valve stem 26 is engaged with the driving gear 22, so that the rotational motion of the motor shaft is converted into the linear motion of the valve stem 26, so that the plug 27 at the bottom end of the valve stem 26 can realize the sealing and opening of the drug outlet 14.

[0039] A PLC controller is also provided in the chassis, and a control switch is provided on the chassis surface. The PLC controller is electrically connected to the control switch, the drive motor 2, and the micro-stepping motor 23. The start and stop of the drive motor 2 and the micro-stepping motor 23 can be controlled by the control switch in combination with the controller.

[0040] The method of use of the present invention is as follows:

[0041] First, the patient's arm is inserted into the circular hole 12 ( Figure 1In order to demonstrate, a physiological prosthesis 8 is used as an example), and the burn wound is located directly below the medicine outlet 14. The burn wound on the patient's arm is disinfected and cleaned with a disinfectant such as iodine tincture, and a dressing or gel medicine is applied to the wound surface. Then, the corresponding control switch on the device is activated to start the micro-stepping camera, driving the valve stem 26 to move upward, and the plug 27 no longer blocks the medicine outlet 14. The anti-adhesion agent in the medicine adding chamber 19, such as vaseline, flows out of the medicine outlet 14 and drips onto the wound surface. The dripping amount of the anti-adhesion agent can be adjusted according to the area of ​​the burn wound. Then, the corresponding control switch is adjusted to make the micro-stepping motor 23 rotate again, and the plug 27 re-blocks the medicine outlet 14. Then use a cotton swab to evenly apply the anti-adhesion agent, pull out a piece of gauze 7, press one end of the gauze 7 on the appropriate part of the patient's arm, do not touch the burned part, start the corresponding control switch, drive the motor 2 to drive the drive gear 4 and the ring gear 5 to rotate, so that the core shaft 16 rotates circumferentially along the annular gap 15. During the rotation, the gauze 7 will gradually wrap around and bandage the burn wound surface. After the gauze 7 is wrapped around once, it can no longer be pressed, and the gauze 7 can be automatically bandaged and wrapped by the equipment. The medical staff can prepare tape and scissors at this time. After the gauze 7 is wrapped to the appropriate number of circles, the corresponding control switch is turned off to stop the core shaft 16, and the gauze 7 is cut with scissors and fixed with tape to complete the bandaging of the gauze 7. The device of the present invention can assist in dressing changes for burn care on the arm, and assist medical staff in completing the bandaging of the arm wound with gauze 7, thereby greatly reducing the operating steps in the medical staff's nursing work, saving operation time, reducing labor intensity, and alleviating the workload of medical staff; at the same time, the container box 21 can be filled with medicine to prevent the gauze 7 from adhering to the wound skin, and the medical staff can conveniently operate the control switch to control the anti-adhesion agent to flow out from the medicine outlet 14 and drip onto the burn site of the wound to keep the wound moist and prevent the gauze 7 from adhering to the wound skin, further simplifying the dressing change process, and at the same time, after the gauze 7 is wrapped around the wound, it can absorb the exudate of the wound, which is more conducive to the healing and recovery of the wound.

[0042] The above are only embodiments of the present invention. The invention is not limited to the fields involved in this implementation case. Common knowledge such as the specific structure and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Anti-adhesion burn dressing changing equipment, characterized by: The invention comprises a chassis, an automatic gauze winding unit fixed on the chassis, and an anti-adhesion unit, wherein a through circular hole is provided in the middle of the chassis; the automatic gauze winding unit comprises a shaft sleeve fixed in the chassis, a bearing fixed on the outer circle of the shaft sleeve, a gear ring fixed on the outer ring of the bearing, and a core shaft threadedly connected to the end face of the gear ring, gauze is wound on the core shaft, and the core shaft can rotate coaxially around the circular hole; the anti-adhesion unit comprises a container box fixed on the surface of the chassis and a medicine discharging mechanism arranged in the container box, the container box is located directly above the central axis of the circular hole, a conical medicine discharging hole is provided at the lower end of the container box, and the medicine discharging mechanism is used to block or open the medicine discharging hole; The gauze automatic winding unit further comprises a driving motor fixed in the chassis and a driving gear fixed on the main shaft of the driving motor, wherein the driving gear is meshed with the ring gear; The medicine dispensing mechanism includes a micro-stepping motor horizontally fixed in the container box, a driving gear fixed to the main shaft of the micro-stepping motor, and a valve stem vertically arranged in the container box. A rack is fixed to the top end of the valve stem, and the rack is meshed with the driving gear. A plug is fixed to the bottom end of the valve stem, and the plug is used to block the medicine dispensing hole. The chassis includes a backboard, an outer cover fixed on the edge of the backboard, a cylinder fixed in the middle of the backboard and a panel fixed on the end of the cylinder. There is an annular gap between the panel and the outer cover, and the rod of the core shaft is located in the annular gap.

2. The anti-adhesion burn dressing changing device according to claim 1, characterized in that: The plug at the bottom end of the valve stem is conical, and the outer peripheral surface of the plug fits with the conical surface in the medicine outlet hole. The plug is made of rubber.

3. The anti-adhesion burn dressing changing device according to claim 2, characterized in that: A medicine adding cavity is provided in the container box, the medicine outlet is communicated with the medicine adding cavity, and the stem portion of the valve stem is slidably connected to the cavity wall of the medicine adding cavity.

4. The anti-adhesion burn dressing changing device according to claim 3, characterized in that: A soft pad is also provided in the circular hole.

5. The anti-adhesion burn dressing changing device according to claim 1, characterized in that: A controller is also provided in the chassis, and the controller is electrically connected to the drive motor and the micro stepping motor.

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