Anti-adhesion burn dressing change equipment

Abstract

The invention relates to the technical field of auxiliary medicine applying instruments for burn patients, in particular to anti-adhesion burn medicine changing equipment which comprises a case, an automatic gauze winding unit and an anti-adhesion unit, the automatic gauze winding unit and the anti-adhesion unit are fixed to the case, and a through round hole is formed in the middle of the case; the automatic gauze winding unit comprises a shaft sleeve fixed in the case, 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 in threaded connection with the end face of the gear ring, gauze is wound on the core shaft, and the core shaft can coaxially rotate around a round hole; the anti-adhesion unit comprises a container box fixed to the surface of the machine box and a medicine discharging mechanism arranged in the container box, the container box is located over the central axis of the round hole, a conical medicine discharging hole is formed in the lower end of the container box, and the medicine discharging mechanism is used for blocking or opening the medicine discharging hole. The device can assist medical staff in completing gauze binding treatment and performing anti-adhesion treatment on wounds in the nursing and dressing changing process of hand burn wounds, the workload of the medical staff is relieved, and wound recovery is promoted.

Description

Technical Field

[0001] The 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 link in the burn treatment process. It mainly involves cleaning, disinfecting, and changing dressings on burn wounds to promote wound healing, prevent and control infection, relieve patient pain, and create favorable conditions for wound healing.

[0003] In burn accidents, hands are most likely to be burned because they are often exposed to the outside and easily come into contact with external objects. As for the dressing change care process after hand burns, the wound surface is usually cleaned first, and it is cleaned as much as possible without over-stimulating the wound surface; then the wound is covered with a dressing and fixed with gauze; when changing the dressing next time, the medical staff will first carefully remove the gauze and remove the original dressing, and then clean the wound again, replace it with a new dressing and a new gauze bandage. In the process of removing the old gauze, since the dressing or ointment is located between the wound surface and the gauze, the medicine will adhere the wound skin to the gauze. When the adhered gauze is removed, it will cause traction and tearing of the wound and the surrounding new tissue, causing the patient to feel severe pain. If the adhered gauze is forcibly separated, it may damage the healing wound tissue, causing the wound to bleed again and delay the healing process of the wound.

[0004] In view of this phenomenon, the prior art "Anti-adhesion bandage for burn care" (Announcement No. CN211356234U) discloses an anti-adhesion bandage, which is fixed to the periphery of the burn site and provided with a window-like design for exposing the wound surface, and a cloth is covered on the window to isolate the wound surface, and the covering cloth and the bandage are detachably fixed with Velcro. When the dressing needs to be changed, the cloth can be uncovered, and after the dressing is changed, the cloth is covered to isolate the wound again, and the cloth does not contact the wound, so as to achieve the purpose of anti-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 prior art, it is necessary to wear the bandage to the patient's arm burn part, and then pass the lock of the bandage through the hole to bind 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 intervals, so 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 is 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, which is convenient for observing the wound and changing the dressing. However, since the fabric on the window is covered with Velcro, there is 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. In addition, the Velcro may hook the surrounding hair or clothing fibers during repeated pasting, causing discomfort to the patient or even skin damage. Moreover, the Velcro's pasting effect will decrease with the increase in the number of uses, and there is a risk that the fabric is not firmly fixed, thus affecting the isolation effect of the wound.

[0007] 3. Not conducive to wound recovery: In order to prevent gauze from adhering to the wound, the prior art designs a window-type structure, which uses cloth to cover the window to isolate the wound, so that the cloth will not contact the wound skin. However, the burn wound will secrete a certain amount of exudate, and the exudate will cover the wound, which is not conducive to the healing and recovery of the wound. Therefore, medical staff are required 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 arranged in a multi-layer structure, the thickness is relatively thick, and the air permeability is poor. For burn patients, long-term use may cause the patient's skin to be 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, a gauze automatic winding unit fixed on 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 comprises 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 mandrel threadedly connected to the end surface of the gear ring, gauze is wound on the mandrel, and the mandrel 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 in the arm area. When performing nursing and dressing changes, after the medical staff cleans the wound, they only need to pass the patient's arm through the circular hole in the middle of the chassis, and then start the device. The mandrel in the automatic gauze winding unit can rotate coaxially around the circular hole, so that the gauze on the mandrel gradually wraps around the patient's burn area, assisting the medical staff to complete the gauze bandaging of the arm wound, thereby greatly reducing the operating steps in the medical staff's nursing work, saving operating time, reducing labor intensity, and reducing the workload of medical staff.

[0014] 2. Automatic medicine dispensing, preventing gauze from sticking, and promoting 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 conveniently 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 burnt area of ​​the wound, thereby keeping the wound moist and preventing the gauze from sticking to the wound skin. On the one hand, the operation steps of medical staff are omitted and the dressing change process is simplified. At the same time, after the gauze is wrapped around the wound, the exudate of the wound can be absorbed, which is more conducive to the healing and recovery of the wound than the existing technology.

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

[0016] Beneficial effects: The combination of the drive motor and the drive gear makes the gauze winding process automatic. Medical staff only need to put the patient's burned arm through the round hole in the middle of the chassis and start the drive motor, and the equipment can automatically complete the gauze winding work. There is no need to manually turn the gauze roll for bandaging like the traditional method, which greatly saves operation steps and reduces the workload and labor intensity of medical staff.

[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 end of the valve stem, the rack is meshed with the driving gear, and 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-stepping 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 meshes with the active gear, so that the rotational motion of the motor main shaft is converted into the linear motion of the valve stem, so that the plug at the bottom of the valve stem can seal and open the medicine outlet hole, thereby realizing the medicine outlet and stop operation, which significantly simplifies the dressing change process, reduces the operating steps, and greatly reduces the workload of medical staff; in addition, the micro-stepping 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 block 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 be more assured when operating the micro stepper motor to control the medicine discharge, without worrying about medicine leakage or unstable medicine discharge, reducing additional operations and adjustment steps, further improving the efficiency of dressing changes, and reducing 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 with the cavity wall of the medicine adding chamber.

[0022] Beneficial effects: The sliding connection between the valve stem and the wall of the dosing chamber ensures the stability and smoothness of the valve stem movement. Medical staff can add more anti-adhesion agents to the dosing chamber at one time, reducing the operation of frequently adding agents. It is only necessary to replenish the dosing chamber when the agent is insufficient, which greatly saves the operation steps.

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

[0024] Beneficial effect: A soft pad is arranged in the round hole. When the patient passes the arm through the round hole for dressing change operation, the soft pad can support the bottom part 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 back plate, an outer cover fixed on the edge of the back plate, a cylinder fixed in the middle of the back plate 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 portion of the core shaft is located in the annular gap.

[0026] Beneficial effect: after the back plate 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 also 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, so that the gauze automatic winding unit can complete the gauze bandaging process, and the medicine dispensing mechanism can be controlled 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 site.

[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, round hole 12, cylinder 13, medicine outlet hole 14, annular gap 15, core shaft 16, shoulder 17, locking cap 18, medicine adding chamber 19, plugging cap 20, container box 21, driving gear 22, micro stepping motor 23, rack 24, seal 25, valve stem 26, plug 27.

[0035] Embodiment 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 back plate 1, an outer cover 3 fixed on the edge of the back plate 1, a cylinder 13 fixed in the middle of the back plate 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 cushion 11 is provided in the circular hole 12.

[0037] The automatic winding unit for gauze 7 is located inside the chassis formed after the back plate 1 and the outer cover 3 are fixed. The automatic winding unit for gauze 7 includes a driving motor 2 fixed on the back plate 1, a driving gear 4 fixed on the main shaft of the driving motor 2, a sleeve fixed on the cylinder 13, a bearing 10 fixed on the outer circle of the sleeve, a gear ring 5 fixed on the outer ring of the bearing 10, and a core shaft 16 threadedly connected to the end face of the gear ring 5, and 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 the horizontal direction; as shown in FIG. Figure 3 As shown, the gauze 7 is wound on one end of the mandrel 16 extending outward from the chassis, and a shoulder 17 is provided on the mandrel 16 for limiting the rolled gauze 7. The end of the mandrel 16 is threadedly connected with a locking cap 18 to prevent the gauze 7 from falling off the mandrel 16. When the driving motor 2 drives the driving gear 4 to rotate, the gear ring 5 rotates accordingly, so that the mandrel 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 shaft 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 medicine adding chamber 19 is also provided in the container box 21, and the medicine outlet 14 is connected to the medicine adding chamber 19. A sealing member 25 is provided on the cavity wall of the medicine adding chamber 19, and the stem of the valve stem 26 is slidably connected to the sealing member 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 meshed with the driving gear 22, so that the rotational motion of the motor main 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 blocking and opening of the medicine outlet 14.

[0039] A PLC controller is also provided in the chassis, and a control switch is provided on the surface of the chassis, and 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, and a dressing or a gel drug is applied to the wound surface. Then, the corresponding control switch on the device is started 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 such as vaseline in the medicine adding cavity 19 flows out of the medicine outlet 14 and drips on the wound surface. The dripping amount of the anti-adhesion agent can be adjusted according to the area of ​​the burn wound, and 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 gear ring 5 to rotate, so that the core shaft 16 rotates circumferentially along the annular gap 15, and the gauze 7 will gradually wrap around and bandage the burn wound surface during the rotation. After the gauze 7 is wrapped around once, the gauze 7 can no longer be pressed, and the gauze 7 can be automatically wrapped and wrapped by the equipment. The medical staff can prepare tape and scissors at this time, and turn off the corresponding control switch after the gauze 7 is wrapped to the appropriate number of circles, so that the core shaft 16 stops, and the gauze 7 is cut with scissors and fixed with tape, thereby completing the bandaging of the gauze 7. The device of the present invention can assist in dressing changes for burn care in the arm area, 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, the exudate of the wound can be absorbed, 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 field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and 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 equipment, characterized by: It includes 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 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; 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, and the medicine discharging mechanism is used to block or open the medicine discharging hole.

2. The anti-adhesion burn dressing changing device according to claim 1 is characterized in that: The gauze automatic winding unit also includes a driving motor fixed in the chassis and a driving gear fixed on the main shaft of the driving motor, and the driving gear is meshed with the gear ring.

3. The anti-adhesion burn dressing changing device according to claim 2 is characterized in that: The medicine discharging 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 meshed 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 discharging hole.

4. The anti-adhesion burn dressing changing device according to claim 3 is characterized in that: The plug at the bottom end of the valve stem is conical, the outer peripheral surface of the plug is matched with the conical surface in the medicine outlet hole, and the plug is made of rubber.

5. The anti-adhesion burn dressing changing device according to claim 4 is characterized in that: A medicine adding cavity is arranged 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 with the cavity wall of the medicine adding cavity.

6. The anti-adhesion burn dressing changing device according to claim 5, characterized in that: A soft cushion is also arranged in the circular hole.

7. The anti-adhesion burn dressing changing device according to claim 6, characterized in that: The chassis comprises a back plate, an outer cover fixed on the edge of the back plate, a cylinder fixed on the middle of the back plate 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 portion of the core shaft is located in the annular gap.

8. The anti-adhesion burn dressing changing device according to claim 7, characterized in that: A controller is also arranged in the chassis, and the controller is electrically connected to the driving motor and the micro-stepping motor.

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