Multifunctional pressure sore cover

Abstract

The invention relates to the technical field of medical equipment, and discloses a multifunctional pressure sore cover which comprises a mounting box, a deformation pad is fixedly mounted at the lower end of the mounting box, a buffer pad used for increasing the comfort of a patient is fixedly mounted at the upper end of the mounting box, and the mounting box, the deformation pad and the buffer pad are all annular; the spraying mechanism comprises two liquid medicine boxes fixedly installed on the two sides of the interior of the installation box, and piston plates used for changing the pressure intensity of the interior of the liquid medicine boxes are installed on the inner walls of the liquid medicine boxes in a sliding mode; through the arrangement of the grading mechanism, even if the periphery of a patient is not accompanied by any person, the patient can spray liquid medicine in the liquid medicine box to a pressure sore area in batches through the grading mechanism in an equal amount through the spraying mechanism, it is guaranteed that the liquid medicine can act on the pressure sore part on time, and normal healing of the pressure sore part is guaranteed; dryness of the pressure sore area of the patient is guaranteed, and generation of bacteria at the pressure sore part caused by a humid environment is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a multifunctional pressure ulcer cover. Background Art

[0002] For bedridden elderly people with lower limb paralysis, due to lying in bed for a long time, local tissues of their bodies are continuously compressed, blood circulation is obstructed, resulting in local skin ischemia, hypoxia, and nutritional deficiency, causing the skin to lose its normal function and tissue damage and necrosis, resulting in pressure ulcers. Since the recovery period of pressure ulcers lasts for several weeks or even months, in order to prevent the pressure ulcer area from being continuously compressed and coming into contact with the mattress during the recovery period, which affects the normal recovery of pressure ulcers, the pressure ulcer area is generally suspended.

[0003] Currently, there are generally two methods. One is to let the elderly lie on their sides. The core purpose of a pressure ulcer patient lying on their side is to relieve local pressure, improve blood circulation, and prevent the formation of new pressure ulcers by scientifically adjusting the body position. The patient needs to alternate positions every two hours to avoid the appearance of new pressure ulcers. However, this method, especially when lying on the side for a long time, causes greater compression of local tissues. Even if the position is frequently changed to avoid pressure ulcers, it will still cause discomfort in the locally compressed tissues. Moreover, for bedridden elderly people, each body position change requires the help of others, and additional manpower is needed for assistance. The other method is to use a pressure ulcer cover, also known as a decompression cover or decompression pad. After the elderly lie down, first adjust the lying position of the elderly to keep them lying on their side. At this time, the pressure ulcer is completely exposed. Cover the skin of the pressure ulcer area with the pressure ulcer cover, and align the hole in the center of the pressure ulcer cover with the wound. Then, push the elderly back to the flat position. The pressure ulcer cover covers the pressure ulcer area. By fitting the pressure ulcer cover with the normal skin outside the pressure ulcer, it is possible to prevent the patient from dragging or compressing the pressure ulcer area when lying flat or turning over, causing secondary injuries.

[0004] Since the recovery period of pressure ulcers lasts for several weeks or even months, it is necessary to regularly spray medicine every day to control the infection. Using a pressure ulcer cover can avoid secondary injuries to the pressure ulcer position of the elderly. However, this also means that every time medicine is applied, the elderly need to be pushed to the side-lying position first to expose the pressure ulcer, and then the spraying treatment can be carried out. After the spraying is completed, the elderly are returned to the flat position. To ensure the recovery effect, the pressure ulcer needs to be medicated multiple times a day. Whether in the hospital or at home for treatment, this requires the presence of family members or nursing workers beside the elderly. Especially in the hospital, since family members need to work during the day, generally only nursing workers can be hired for assistance. However, the price of one-on-one nursing workers is high, and for one-to-many nursing workers, due to the large number of patients requiring services, it is difficult to ensure regular and fixed assistance with medicine application, and the patient cannot apply medicine to themselves, thus affecting the recovery of pressure ulcers. Summary of the Invention

[0005] In view of the problem in the prior art that patients need human accompanying and nursing during the recovery period of pressure sores and patients cannot apply medicine by themselves, a multifunctional pressure sore cover is proposed.

[0006] The present application provides a multifunctional pressure sore cover, the purpose of which is to: liberate manpower and eliminate the need for family members to accompany or hire a nurse for care; before going to work every day, the patient's family members place the pressure sore cover on the patient's pressure sore area, aim the universal nozzle at the pressure sore area, replenish the medicine solution, and charge the battery, and the patient can then spray the medicine on the pressure sore area by himself and provide regular care.

[0007] The technical solution of the present invention is: a multifunctional pressure sore cover, comprising; An installation box, a deformable pad is fixedly installed at the lower end of the installation box, and a buffer pad for increasing patient comfort is fixedly installed at the upper end of the installation box, wherein the installation box, the deformable pad and the buffer pad are all annular; A spraying mechanism, the spraying mechanism is arranged on the installation box, and comprises two liquid medicine boxes fixedly installed on both sides of the installation box, and a piston plate for changing the internal pressure of the liquid medicine box is slidably installed on the inner wall of the liquid medicine box; A dividing mechanism, the dividing mechanism is arranged inside the installation box, the dividing mechanism is used to divide the liquid medicine in the liquid medicine box into multiple times and spray it out through the spraying mechanism, the dividing mechanism includes a stepped member fixedly installed at the lower end of the piston plate, and the dividing mechanism also includes a limit assembly and a driving assembly fixedly installed between the installation box and the deformation pad; A limit assembly, wherein the limit assembly cooperates with the stepped member to realize spraying the liquid medicine in batches, and the limit assembly comprises a three-level plate fixedly mounted on the inner wall of the mounting box, a second-level slide plate slidably mounted inside the three-level plate, and a first-level slide plate slidably mounted inside the second-level slide plate; The driving assembly is used to control the horizontal sliding of the primary slide plate and the secondary slide plate, contact the step parts in sequence, and control the spraying mechanism to spray medicine.

[0008] Furthermore, the spraying mechanism also includes two supplementary pipes fixedly installed on the side walls of the two medicine liquid tanks, respectively. Transmission pipes are fixedly installed on the upper ends of the two medicine liquid tanks, respectively. Two support rods are installed on the inner wall of the installation box, and a universal nozzle is slidably installed between the two support rods. Both of the two transmission pipes are connected to the universal nozzle, and the supplementary pipe is a one-way pipe.

[0009] Furthermore, the step part includes a stop column fixedly installed at the lower end of the piston plate, and the side wall of the stop column is sequentially installed with a first matching plate, a second matching plate and a third matching plate from top to bottom, and the lengths of the three increase sequentially from top to bottom, and a connecting plate is fixedly installed between the second matching plate and the first matching plate and the third matching plate respectively.

[0010] Further, the limiting component further includes limiting rods respectively and fixedly installed on the upper and lower ends of the first-level slide plate and the second-level slide plate. Limiting grooves are provided on the upper and lower inner walls of the second-level slide plate and the third-level plate, and multiple limiting rods are all slidably installed in the corresponding limiting grooves.

[0011] Further, the driving component includes a sliding groove provided on the inner wall of the installation box. A first synchronous plate is fixedly installed between the two first-level slide plates, and a second synchronous plate is fixedly installed between the two second-level slide plates. Pull rods are fixedly installed on the side walls of the first synchronous plate and the second synchronous plate, and a reset element is fixedly installed at one end of each of the two pull rods.

[0012] Further, the reset element includes two reset plates respectively and fixedly installed at one end of the two pull rods, two spring rods respectively and fixedly installed between the two reset plates and the inner wall of the installation box, and two pull buttons respectively and fixedly installed on the side walls of the two reset plates.

[0013] Further, balance plates are fixedly installed at the lower ends of the two stop columns, multiple buffer springs are fixedly installed at the lower ends of the two balance plates, and bottom plates are fixedly installed at the lower ends of the corresponding two buffer springs.

[0014] Further, a placement plate is fixedly installed on the inner wall of the installation box. Two circular grooves are provided on the placement plate, and hot air fans for drying are installed inside the two circular grooves.

[0015] Further, both the deformation pad and the buffer pad are made of silicone material, and the inside of the buffer pad is filled with sponge.

[0016] Advantages of the present invention: 1. By providing a grading mechanism and a spraying mechanism, the patient can spray the liquid medicine in the medicine box on the pressure ulcer site in equal amounts multiple times every day by himself / herself for treating the pressure ulcer site, without the need for additional turning over, effectively reducing the workload of the accompanying personnel, liberating manpower. At the same time, even when the accompanying personnel cannot accompany the patient every day, the patient can also spray the medicine quantitatively on the pressure ulcer site regularly every day.

[0017] 2. By fixedly installing a buffer pad at the upper end of the installation box and a deformation pad at the lower end of the installation box, the pressure between the pressure ulcer cover and the patient's skin is effectively reduced, preventing the patient from generating new pressure ulcers. At the same time, the buffer pad is set to be annular, so that the pressure ulcer site of the patient is in a suspended state, ensuring the air flow below the pressure ulcer site, reducing pressure and accelerating the healing of the pressure ulcer site.

[0018] 3. By installing a hot air fan on the inner wall of the installation box, the hot air fan can always keep the pressure ulcer area dry, prevent bacteria from growing or inflammation from occurring in the pressure ulcer area in a humid environment, and effectively accelerate the healing speed of the pressure ulcer area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a first - perspective three - dimensional structure schematic diagram of the present invention; Figure 2 is a schematic diagram of the internal structure of the installation box of the present invention; Figure 3 of the present invention Figure 2 is a top - view planar structure schematic diagram; Figure 4 of the present invention Figure 1 is a partial cross - sectional structure schematic diagram; Figure 5 is a schematic diagram of the grading mechanism structure of the present invention; Figure 6 is a schematic diagram of the stepped part structure of the present invention; Figure 7 is a schematic diagram of the driving component structure of the present invention; Figure 8 is a schematic diagram of the limiting component structure of the present invention; Figure 9 is a schematic diagram of the balance plate installation structure of the present invention.

[0020] In the figure: 1. Installation box; 2. Deformable pad; 3. Buffer pad; 4. Liquid medicine tank; 5. Piston plate; 6. Three - level plate; 7. Second - level sliding plate; 8. First - level sliding plate; 9. Supplementary pipe; 10. Transmission pipe; 11. Support rod; 12. Universal nozzle; 13. Stopping column; 14. First mating plate; 15. Second mating plate; 16. Third mating plate; 17. Connecting plate; 18. Limiting rod; 19. Limiting groove; 20. Sliding groove; 21. Synchronization plate one; 22. Synchronization plate two; 23. Pull rod; 24. Reset plate; 25. Spring rod; 26. Pull button; 27. Balance plate; 28. Buffer spring; 29. Bottom plate; 30. Placing plate; 31. Circular groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0022] Refer to Figures 1-3, a multifunctional pressure ulcer cover is provided, which includes an installation box 1. A deformation pad 2 is fixedly installed at the lower end of the installation box 1, and a buffer pad 3 for increasing the comfort of the patient is fixedly installed at the upper end of the installation box 1. The installation box 1, the deformation pad 2, and the buffer pad 3 are all annular. Both the deformation pad 2 and the buffer pad 3 are made of silicone material, and the inside of the buffer pad 3 is filled with sponge.

[0023] Specifically, the present invention is used for patients who are paralyzed in the body but have normal arms and need to stay in bed for a long time. The installation box 1 is used to provide overall support. The buffer pad 3 is in direct contact with the patient's skin. The buffer pad 3 is made of silicone material and is filled with sponge inside, which is used to avoid the direct contact between the patient's skin and the installation box 1, and at the same time reduce the pressure of the contact between the buffer pad 3 and the patient's skin, preventing the patient from developing new pressure ulcers due to the relatively large pressure of contact with the buffer pad 3. Among them, the sizes of the deformation pad 2 and the buffer pad 3 are the same as those of the existing pressure ulcer pads, which are used to support the peripheral area where the patient has pressure ulcers, so that the area under the patient's pressure ulcer is in a suspended state. Since pressure ulcers are prone to occur in the pressure-bearing bony prominences such as the coccyx and buttocks. When the patient has pressure ulcers in the buttocks or coccyx due to long-term bed rest, the caregiver can directly place the pressure ulcer cover of the present invention under the patient's buttocks or coccyx, so that the peripheral area of the pressure ulcer is supported by the pressure ulcer cover and is in a suspended state, while the pressure ulcer area is in a suspended state to avoid direct contact with the bed body, resulting in the deterioration of the pressure ulcer. At the same time, a soft pad is placed under the patient's back for support, so that the patient's buttocks and back are horizontal, preventing the patient from feeling uncomfortable when lying flat.

[0024] Refer to Figures 2-5 , a spraying mechanism. The spraying mechanism is installed on the installation box 1. The spraying mechanism includes two liquid medicine boxes 4 fixedly installed on both sides inside the installation box 1. A piston plate 5 for changing the internal pressure of the liquid medicine box 4 is slidably installed on the inner wall of the liquid medicine box 4; the spraying mechanism also includes two supplementary pipes 9 respectively fixedly installed on the side walls of the two liquid medicine boxes 4. Two transmission pipes 10 are respectively fixedly installed at the upper ends of the two liquid medicine boxes 4. Two support rods 11 are installed on the inner wall of the installation box 1. A universal nozzle 12 is slidably installed between the two support rods 11. Both transmission pipes 10 are communicated with the universal nozzle 12. The supplementary pipe 9 is a one-way pipe. A concave area is formed between the installation box 1 and the buffer pad 3, and the universal nozzle 12 is located in the concave area.

[0025] Specifically, the spraying mechanism is used to spray the liquid medicine on the pressure ulcer area of the patient's buttocks. Its working principle is as follows: due to the patient's own gravity, the piston plate 5 and the liquid medicine tank 4 undergo relative displacement. As a result, the pressure generated by the displacement of the piston plate 5 presses the liquid medicine inside the liquid medicine tank 4 into the universal nozzle 12 through the transmission pipe 10, and the universal nozzle 12 sprays the liquid medicine dispersedly on the pressure ulcer area of the patient to complete the spraying of the liquid medicine on the patient's pressure ulcer area. The supplementary pipe 9 is used for the accompanying personnel to supplement the liquid medicine in the liquid medicine tank 4. The internal capacity of the liquid medicine tank 4 is the volume of the liquid medicine that the patient needs to spray in one day. The accompanying personnel need to supplement the liquid medicine inside the patient's liquid medicine tank 4 every morning to meet the patient's daily treatment dosage. The supplementary pipe 9 is a one-way pipe, enabling the accompanying personnel to complete the liquid medicine supplement by pressing with a syringe. At the same time, the liquid medicine inside the liquid medicine tank 4 cannot flow out through the supplementary pipe 9.

[0026] Refer to Figures 5-6 , the dosing mechanism. The dosing mechanism is installed inside the installation box 1. The dosing mechanism is used to divide the liquid medicine in the liquid medicine tank 4 into multiple times and spray it out through the spraying mechanism. The dosing mechanism includes a stepped part fixedly installed at the lower end of the piston plate 5. The stepped part includes a stop column 13 fixedly installed at the lower end of the piston plate 5. A first fitting plate 14, a second fitting plate 15, and a third fitting plate 16 are sequentially installed on the side wall of the stop column 13 from top to bottom, and the lengths of the three increase sequentially from top to bottom. Connecting plates 17 are fixedly installed between the second fitting plate 15 and the first fitting plate 14 and the third fitting plate 16 respectively.

[0027] The dosing mechanism further includes a limit component and a driving component fixedly installed between the installation box 1 and the deformation pad 2. The limit component, the limit component cooperates with the stepped part to achieve the divided spraying of the liquid medicine. The limit component includes a three-stage plate 6 fixedly installed on the inner wall of the installation box 1, a two-stage sliding plate 7 slidably installed inside the three-stage plate 6, and a one-stage sliding plate 8 slidably installed inside the two-stage sliding plate 7. The limit component further includes limit rods 18 fixedly installed at the upper and lower ends of the one-stage sliding plate 8 and the two-stage sliding plate 7 respectively. Limiting grooves 19 are opened on the upper and lower inner walls of the two-stage sliding plate 7 and the three-stage plate 6, and multiple limit rods 18 are slidably installed in the corresponding limiting grooves 19.

[0028] After the accompanying family member finishes cleaning the patient's pressure ulcer area every morning, the liquid medicine to be sprayed is filled into the liquid medicine tank 4 through the transmission pipe 10. During the patient's lying flat, the overall installation box 1 will be driven to move downward. At the same time, relative movement occurs between the installation box 1 and the piston plate 5. When it moves to the point where the one-stage sliding plate 8 contacts the first fitting plate 14 and stops (the one-stage sliding plate 8 limits the downward movement of the installation box 1 through the first fitting plate 14, and the installation box 1 cannot move downward), at this time, the relative movement distance of the installation box 1 is L1 (refer to Figure 6), the installation box 1 drives the liquid medicine box 4 to move downward relative to the piston plate 5 synchronously. At this time, the piston plate 5 presses a part of the liquid medicine inside the liquid medicine box 4 into the universal nozzle 12 through the transmission pipe 10, and then directly sprays it on the pressure sore part of the patient. That is, when the cleaning of the pressure sore part of the patient is completed and the patient lies flat, the piston plate 5 in the liquid medicine box 4 moves relatively in the liquid medicine box 4 by L1, and presses the liquid medicine in the liquid medicine box 4 into the universal nozzle 12 to complete the first spraying of the pressure sore part.

[0029] Refer to Figures 7-8 , the driving assembly. The driving assembly is used to control the horizontal sliding of the first-stage slide plate 8 and the second-stage slide plate 7, contact with the stepped part in sequence, and control the spraying mechanism to spray medicine. The driving assembly includes a sliding groove 20 opened on the inner wall of the installation box 1. A first synchronous plate 21 is fixedly installed between the two first-stage slide plates 8. A second synchronous plate 22 is fixedly installed between the two second-stage slide plates 7. Pulling rods 23 are fixedly installed on the side walls of the first synchronous plate 21 and the second synchronous plate 22. One ends of the two pulling rods 23 are fixedly installed with reset elements.

[0030] The first synchronous plate 21 is used to connect the two first-stage slide plates 8, so that when the first synchronous plate 21 moves along the horizontal direction, the two first-stage slide plates 8 can move synchronously. Similarly, the second synchronous plate 22 is used to connect the two second-stage slide plates 7. The second synchronous plate 22 is composed of two square plates, and there is a distance between the two square plates, so that the first synchronous plate 21 can slide normally in the horizontal direction without affecting each other. When the patient needs a second spraying, the lower pull button 26 can be pulled, so that the pull button 26 can drive the two first-stage slide plates 8 to slide through the pulling rod 23 and the first synchronous plate 21. When the two first-stage slide plates 8 slide to a certain position, the first-stage slide plate 8 no longer contacts the first mating plate 14, and thus no longer limits the first mating plate 14. At this time, the gravity of the patient drives the liquid medicine box 4 to continue to move downward. When the second-stage slide plate 7 contacts the second mating plate 15 during the movement of the liquid medicine box 4, the second mating plate 15 limits the installation box 1 again through the second-stage slide plate 7. At this time, a secondary relative displacement occurs between the installation box 1 and the liquid medicine box 4 and the piston plate 5. At this time, the displacement between the installation box 1 and the liquid medicine box 4 is L2 (refer to Figure 6 ), when the relative displacement between the liquid medicine box 4 and the piston plate 5 is L2, the piston plate 5 generates pressure on the liquid medicine in the liquid medicine box 4 again, and presses the liquid medicine into the universal nozzle 12 through the pressure to spray the patient for the second time.

[0031] Similarly, when the patient reaches the third medicine spraying time, the patient pulls the upper pull button 26, causing the pull button 26 to drive the second synchronous plate 22 and the two-stage slide plates 7 at both ends to move synchronously through the pull rod 23, so that the two-stage slide plates 7 no longer contact the second mating plate 15. As a result, the third relative displacement occurs between the installation box 1 and the liquid medicine tank 4, and the relative displacement of L3 occurs between the liquid medicine tank 4 and the piston plate 5. At this time, when the piston plate 5 is at the L3 section, the remaining liquid medicine in the liquid medicine tank 4 is sprayed on the patient's pressure ulcer part for the third time, completing the third liquid spraying on the patient. Thus, the patient can achieve multiple timed medicine sprayings on the pressure ulcer part by himself. The components in the sub-dose mechanism vary in number according to the number of times the medicine needs to be sprayed as required by the medicine used by the patient.

[0032] Refer to Figure 7 , the reset components include two reset plates 24 respectively fixedly installed at one end of the two pull rods 23, two spring rods 25 respectively fixedly installed between the two reset plates 24 and the inner wall of the installation box 1, and two pull buttons 26 respectively fixedly installed on the side walls of the two reset plates 24.

[0033] The spring rods 25 in the reset components reset the two first-stage slide plates 8 and the two-stage slide plates 7 respectively through the corresponding two pull rods 23. When the patient turns over the next day, due to the medicine spraying on the first day, at this time, the third-stage plate 6 contacts the third mating plate 16. When turning over, the pressure of the patient on the installation box 1 disappears. At this time, the first-stage slide plates 8 and the two-stage slide plates 7 are reset under the elastic force of the spring rods 25. During the reset process, the piston plate 5 will be driven to reset synchronously through the connecting plate 17. At this time, the caregiver can refill the liquid medicine into the liquid medicine tank 4 again and use it again.

[0034] Refer to Figure 9 , balance plates 27 are fixedly installed at the lower ends of the two stop columns 13, a plurality of buffer springs 28 are fixedly installed at the lower ends of the two balance plates 27, and bottom plates 29 are fixedly installed at the lower ends of the corresponding two buffer springs 28.

[0035] Specifically, the balance plates 27 are used to balance and support the stop columns 13 to prevent the installation box 1 and the stop columns 13 from tilting when the patient presses on the pressure ulcer cover, which affects the overall function of the pressure ulcer cover.

[0036] Refer to Figures 1-2 , a placement plate 30 is fixedly installed on the inner wall of the installation box 1. Two circular grooves 31 are provided on the placement plate 30. Hot air fans for drying (not shown in the figure) are installed inside the two circular grooves 31. A rechargeable battery (not marked in the figure) is fixedly installed at the upper end of the placement plate 30.

[0037] The hot air fan is used to provide hot air for the pressure ulcer part of the patient, so that while maintaining the air flow under the pressure ulcer part of the patient, it ensures the dryness of the pressure ulcer part, prevents bacteria from growing in the pressure ulcer part of the patient in a humid environment, resulting in patient infection and inflammation, and affecting the patient's recovery efficiency. The rechargeable battery is used to provide electrical energy for the hot air fan, and at the same time, before daily use, the user can charge the rechargeable battery through a charger.

[0038] The working principle of the present invention is as follows: Preparation work: The caregiver regularly cleans the pressure ulcer part of the patient every morning, and injects the medicine liquid to be sprayed that day into the medicine liquid tank 4 in advance through a syringe via the replenishing tube 9 to complete the preparation work of the medicine liquid. The first spraying after cleaning: First, push the patient to make them lie on their side, then attach one side of the pressure ulcer cover to the skin at the coccyx on the side of the patient close to the mattress. At this time, an angle is formed between the pressure ulcer cover and the patient's coccyx. Press the pressure ulcer cover against the pressure ulcer area to ensure that the pressure ulcer cover is in the central area of the buttocks. Then deflect the pressure ulcer cover downward. At this time, the positions of the pressure ulcer and the universal nozzle 12 can be seen. Adjust the angle of the universal nozzle 12 on the pressure ulcer cover to ensure that the universal nozzle 12 is aligned with the pressure ulcer position (manual visual prediction can be carried out). Then press the pressure ulcer cover firmly against the buttocks skin. Subsequently, turn the patient and the pressure ulcer cover as a whole towards the bed so that the patient lies flat on the bed, with the pressure ulcer area resting on the pressure ulcer cover and the patient's body pressing on the pressure ulcer cover, generating a downward pressure on the installation box 1. Under the action of the pressure, the installation box 1 moves downward, and the installation box 1 drives the internal medicine liquid tank 4 to move synchronously until the first-stage slide plate 8 in the installation box 1 contacts the first mating plate 14, and then the installation box 1 and the internal medicine liquid tank 4 stop moving. At this time, the medicine liquid tank 4 moves downward by a distance of L1 relative to the piston plate 5, and during the movement, the piston plate 5 presses part of the medicine liquid in the medicine liquid tank 4 into the universal nozzle 12 and sprays it on the pressure ulcer part of the patient to complete the first spraying that needs to be carried out immediately after the patient is cleaned.

[0039] Second spraying and third spraying: When it is time for the patient to receive the second spraying, the patient pulls the lower pull button 26, causing the pull button 26 to drive the first-stage sliding plates 8 at both ends of the synchronization plate one 21 to slide horizontally through the pull rod 23. When sliding a certain distance, the first-stage sliding plates 8 no longer contact and are limited by the first mating plate 14. At this time, the installation box 1 and the liquid medicine box 4 undergo a second displacement under the pressure of the patient. The second displacement distance between the liquid medicine box 4 and the piston plate 5 is L2. During the second displacement, the piston plate 5 presses the liquid medicine in the liquid medicine box 4 into the universal nozzle 12 again and sprays it onto the pressure ulcer part of the patient, completing the second spraying. Similarly, when it reaches the time for the third spraying, the patient pulls the upper pull button 26, causing the pull button 26 to drive the second mating plate 15 to move horizontally through the pull rod 23. During the movement, the second-stage sliding plates 7 no longer limit the second mating plate 15. At this time, the liquid medicine box 4 undergoes a third relative displacement, and the displacement distance is L3. When the piston plate 5 undergoes the third relative displacement of the liquid medicine box 4, it sprays the remaining liquid medicine in the liquid medicine box 4 onto the pressure ulcer part of the patient, completing the third spraying.

[0040] Reset: When the caregiver turns the patient over to clean the pressure ulcer part the next day, the patient no longer presses on the pressure ulcer cover, causing the spring rod 25 to reset the corresponding first-stage sliding plates 8 and second-stage sliding plates 7 under the action of elastic force. During the reset process, the first-stage sliding plates 8 and the second-stage sliding plates 7 drive the piston plate 5 to reset through the connecting plate 17, facilitating subsequent use.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A multifunctional pressure sore cover, characterized in that: include; An installation box, a deformable pad is fixedly installed at the lower end of the installation box, and a buffer pad for increasing patient comfort is fixedly installed at the upper end of the installation box, wherein the installation box, the deformable pad and the buffer pad are all annular; A spraying mechanism, the spraying mechanism is arranged on the installation box, the spraying mechanism comprises two liquid medicine boxes fixedly installed on both sides of the installation box, and a piston plate for changing the internal pressure of the liquid medicine box is slidably installed on the inner wall of the liquid medicine box; A dividing mechanism, the dividing mechanism is arranged inside the installation box, the dividing mechanism is used to divide the liquid medicine in the liquid medicine box into multiple times and spray it out through the spraying mechanism, the dividing mechanism includes a stepped member fixedly installed at the lower end of the piston plate, and the dividing mechanism also includes a limit assembly and a driving assembly fixedly installed between the installation box and the deformation pad; A limit assembly, wherein the limit assembly cooperates with the stepped member to realize spraying the liquid medicine in batches, and the limit assembly comprises a three-level plate fixedly mounted on the inner wall of the mounting box, a second-level slide plate slidably mounted inside the three-level plate, and a first-level slide plate slidably mounted inside the second-level slide plate; The driving assembly is used to control the horizontal sliding of the primary slide plate and the secondary slide plate, contact the step parts in sequence, and control the spraying mechanism to spray medicine.

2. A multifunctional pressure sore cover according to claim 1, characterized in that: The spraying mechanism also includes two supplementary pipes fixedly installed on the side walls of the two medicine liquid tanks, respectively. Transmission pipes are fixedly installed on the upper ends of the two medicine liquid tanks, respectively. Two support rods are installed on the inner wall of the installation box, and a universal nozzle is slidably installed between the two support rods. Both of the two transmission pipes are connected to the universal nozzle, and the supplementary pipe is a one-way pipe.

3. The multifunctional pressure sore cover according to claim 1, characterized in that: The stepped part includes a stop column fixedly installed at the lower end of the piston plate, and the first matching plate, the second matching plate and the third matching plate are installed on the side wall from top to bottom in sequence, and the lengths of the three increase in sequence from top to bottom. The second matching plate is fixedly installed with a connecting plate between the first matching plate and the third matching plate.

4. The multifunctional pressure sore cover according to claim 3, characterized in that: The limit assembly also includes limit rods fixedly installed on the upper and lower ends of the first slide and the second slide respectively. Limit grooves are provided on the upper and lower inner walls of the second slide and the third slide, and multiple limit rods are slidably installed in the corresponding limit grooves.

5. The multifunctional pressure sore cover according to claim 4, characterized in that: The driving assembly includes a sliding groove opened on the inner wall of the installation box, a synchronization plate 1 is fixedly installed between the two first-level slides, and a synchronization plate 2 is fixedly installed between the two second-level slides. Pull rods are fixedly installed on the side walls of the synchronization plate 1 and the synchronization plate 2, and a reset element is fixedly installed on one end of the two pull rods.

6. The multifunctional pressure sore cover according to claim 5, characterized in that: The reset element comprises two reset plates respectively fixedly mounted on one end of two pull rods, two spring rods respectively fixedly mounted between the two reset plates and the inner wall of the installation box, and two pull knobs respectively fixedly mounted on the side walls of the two reset plates.

7. The multifunctional pressure sore cover according to claim 3, characterized in that: A balance plate is fixedly mounted on the lower ends of the two stop columns, a plurality of buffer springs are fixedly mounted on the lower ends of the two balance plates, and a bottom plate is fixedly mounted on the lower ends of the corresponding two buffer springs.

8. The multifunctional pressure sore cover according to claim 1, characterized in that: A placement plate is fixedly mounted on the inner wall of the installation box, and two circular grooves are arranged on the placement plate. Hot air fans for drying are installed inside the two circular grooves.

9. The multifunctional pressure sore cover according to claim 1, characterized in that: The deformable pad and the buffer pad are both made of silicone material, and the interior of the buffer pad is filled with sponge.

Images