Dressing change bandaging auxiliary device

Abstract

The invention relates to a dressing change and bandaging auxiliary device, which belongs to the technical field of clinical medical instruments and comprises a connecting frame, a spraying pipe horizontally arranged at the bottom of the connecting frame, a plurality of first through holes formed in one side of the spraying pipe at equal intervals in the center line direction of the spraying pipe, a conveying element arranged on a liquid storage tank, and a suction pipe horizontally arranged at the bottom of the connecting frame. A plurality of second through holes are formed in the suction pipe at equal intervals in the direction of the center line of the suction pipe, the two ends of the suction pipe are closed, and the interior of the suction pipe communicates with the negative pressure element through a pipeline. The disinfectant fluid is uniformly dispersed to soften the old dressings, so that the old dressings can be completely softened and effectively separated from tissue fibers or scabs on wounds, pain of patients caused when the old dressings are removed is avoided, meanwhile, a large amount of disinfectant fluid does not need to be used, and wound infection of the patients is prevented.

Description

Technical Field

[0001] The present invention belongs to the technical field of clinical medical devices, and in particular relates to a dressing change and bandaging auxiliary device. Background Art

[0002] Dressing changes are common clinical nursing procedures, primarily used to treat and care for wounds to promote healing, prevent infection, and alleviate patient discomfort. The dressing change nursing process includes preparation, removal of the old dressing, wound observation, periwound skin disinfection, wound disinfection, and re-bandaging and fixation. Regularly changing and fixing wounds can reduce wound infection and recurrence, helping to accelerate wound healing. Infection is one of the main obstacles to wound healing. Removing the old dressing, disinfecting the periwound skin, and wound disinfection during dressing changes can provide a suitable environment for the wound to prevent infection, reducing infection rates by 40% to 50%. Reducing infection significantly improves wound healing rates. The new dressing, applied to the wound, covers and protects the wound and absorbs wound secretions, promoting tissue repair and alleviating pain. According to Younge & Hinkley (2011), regular wound dressing changes can increase wound healing rates by 20% to 40%.

[0003] During the dressing change process, the wound is exposed to external stimuli again, which can cause pain to the patient. This is especially true when the nurse uses tweezers to slowly remove the old dressing. Since the healed tissue fibers or scabs on the wound surface are easily adhered to the old dressing, the nerve endings at the edge of the wound are often more sensitive. When the old dressing is removed, these tissue fibers or scabs are involved, which will stimulate the nerve endings and cause pain. In severe cases, the healed tissue fibers may be torn again, causing bleeding and severe pain.

[0004] In order to reduce the pain of patients during dressing changes, when changing the dressing of the patient's wound, cold compresses or ice compresses are usually used to pre-treat the wound if the wound is small, so that the nerve conduction speed around the wound is slowed down and the blood vessels are constricted, thereby reducing pain when the old dressing is removed. When the wound is large, local anesthesia is often used to avoid causing severe pain to the patient when removing the old dressing.

[0005] However, while the aforementioned cold compresses or ice compresses and local anesthesia can alleviate pain when removing old dressings, they not only hinder local blood circulation around the wound, affecting wound healing, but also produce condensed water that can contaminate the wound and cause infection. Local anesthesia can effectively relieve pain during dressing changes, but after the anesthetic wears off, the patient still experiences pain, and local anesthesia can have side effects and be addictive. Therefore, the aforementioned pain relief methods for dressing changes and removing old dressings all have drawbacks.

[0006] At present, when removing the old dressing during dressing change and bandaging, the nursing staff will first spray disinfectant water on the old dressing, and use the disinfectant water to penetrate and soften the old dressing, so that the old dressing is separated from the tissue fibers or scabs on the wound, thus avoiding causing pain to the patient when removing the old dressing. The method of softening the dressing with disinfectant water avoids physical stimulation to the wound and does not involve any drug or external force intervention, so there are no drawbacks such as side effects. However, it is found during the clinical nursing dressing change and bandaging operation that when the disinfectant water is sprayed on the old dressing and allowed to penetrate and soften it for a period of time, and then the old dressing is slowly removed with forceps, there is still a situation where the old dressing pulls the tissue fibers or scabs of the wound, causing pain to the patient.

[0007] After a large number of investigations, it is found that after the disinfectant water is sprayed on the old dressing, the disinfectant water will preferentially penetrate to the lower side of the old dressing, which is likely to cause some of the old dressing not to be softened, so that the old dressing is still adhered to some tissue fibers or scabs, resulting in pain to the patient when removing the old dressing. When the amount of disinfectant water sprayed is too much, the skin around the wound will become soft, white or macerated, and then the skin barrier is damaged, increasing the risk of wound infection for the patient. Summary of the Invention

[0008] In view of this, the present invention provides an auxiliary device for dressing change and bandaging to solve the deficiencies in the prior art. The present invention can achieve complete softening of the old dressing, so as to effectively separate it from the tissue fibers or scabs on the wound, and avoid causing pain to the patient when removing the old dressing.

[0009] The technical solution of the present invention is: an auxiliary device for dressing change and bandaging, including a connecting frame. A spraying pipe is horizontally arranged at the bottom of the connecting frame, and the spraying pipe is fixedly connected to the connecting frame. A plurality of first through holes are equidistantly arranged on one side of the spraying pipe along its center line direction, and the first through holes are inclined downward. Both ends of the spraying pipe are closed and its interior is communicated with a liquid storage tank through a pipeline. A conveying element is arranged on the liquid storage tank for conveying the disinfectant water in the liquid storage tank to the spraying pipe. The nursing staff holds the connecting frame, makes the spraying pipe abut against the old dressing on the patient's wound and moves it, and the disinfectant water is sprayed from the first through holes onto the old dressing. A suction pipe is horizontally arranged at the bottom of the connecting frame and is located on the side of the spraying pipe where the first through holes are arranged. The suction pipe is parallel to the center line of the spraying pipe, and the suction pipe is fixedly connected to the connecting frame. A plurality of second through holes are equidistantly arranged on the suction pipe along its center line direction and are located on the side of the suction pipe close to the spraying pipe, and the second through holes are inclined downward. Both ends of the suction pipe are closed and its interior is communicated with a negative pressure element to drive the movement and penetration of the disinfectant water on the old dressing to soften it.

[0010] Preferably, a plurality of support rings are equidistantly sleeved on the spraying pipe and the suction pipe respectively, and the support rings are rotationally connected to the spraying pipe or the suction pipe respectively along their circumferences.

[0011] Preferably, a U-shaped support rod is vertically arranged between the spraying pipe and the suction pipe. The two vertical ends of the U-shaped support rod are respectively connected to the connecting frame, and a roller body is sleeved on the horizontal section of the U-shaped support rod. The roller body is rotationally connected to the U-shaped support rod along its circumference.

[0012] Preferably, sunken holes are vertically formed in the two vertical ends of the U-shaped support rod respectively. A sliding rod is arranged in the sunken hole, and the sliding rod is slidably connected to the sunken hole vertically. The end of the sliding rod far away from the U-shaped support rod is fixedly connected to the connecting frame. An elastic member is arranged between the sliding rod and the U-shaped support rod to drive the roller body to move to the side far away from the connecting frame.

[0013] Preferably, a connecting rod is vertically arranged between the roller body and the connecting frame. One end of the connecting rod is fixedly connected to the connecting frame, and a driving mechanism is arranged at the other end. The output end of the driving mechanism abuts against the roller body to drive the roller body to move back and forth vertically.

[0014] Preferably, the driving mechanism includes: a plum blossom-shaped cam, a roller and a mounting seat. The plum blossom-shaped cam is sleeved and fixed on the roller body and is coaxial with it. The mounting seat is fixedly arranged at the end of the connecting rod far away from the connecting frame. The roller is arranged on the mounting seat and is rotationally connected to it. The roller abuts against the plum blossom-shaped cam.

[0015] Preferably, an annular groove is formed in the roller body, and the plum blossom-shaped cam is arranged in the annular groove.

[0016] Preferably, the length of the roller body is greater than the lengths of the spraying pipe and the suction pipe.

[0017] Preferably, nozzles are respectively arranged on the first through hole and the second through hole, and the nozzles are detachably and fixedly connected to the spraying pipe or the suction pipe.

[0018] Preferably, the range of the inclination angle F of the first through hole and the second through hole is 35°-50°.

[0019] Compared with the prior art, a dressing change and bandaging auxiliary device provided by the present invention is used in cooperation with a conveying element through a spraying pipe on a connecting frame. A caregiver holds the connecting frame so that the spraying pipe abuts against the old dressing on the patient's wound and moves, realizing that the disinfectant water is continuously sprayed from the first through hole on the spraying pipe onto the dressing. Then, it is used in cooperation with a negative pressure element through a suction pipe, and the disinfectant water on the dressing is driven by air flow to move horizontally and penetrate, so that the disinfectant water is evenly dispersed to soften the old dressing, and the old dressing can be completely softened, so as to be effectively separated from the tissue fibers or scabs on the wound, avoiding causing pain to the patient when removing the old dressing, improving the comfort of clinical nursing dressing change and bandaging, and at the same time, without using a large amount of disinfectant water, preventing the patient's wound from being infected. Brief Description of the Drawings

[0020] Figure 1 is the front view of the dressing change and bandaging device of the present invention;

[0021] Figure 2 is the top view of the dressing change and bandaging device of the present invention;

[0022] Figure 3 is the side view of the dressing change and bandaging device of the present invention;

[0023] Figure 4 is the present invention Figure 1 Cross-sectional view taken along line A-A in;

[0024] Figure 5 is the present invention Figure 2 Cross-sectional view taken along line B-B in;

[0025] Figure 6 is the present invention Figure 3 Cross-sectional view taken along line C-C in;

[0026] Figure 7 is the present invention Figure 3 Cross-sectional view taken along line D-D in;

[0027] Figure 8 is the present invention Figure 5 Enlarged schematic view at position E in. Detailed Description of the Preferred Embodiment

[0028] The present invention provides an auxiliary device for dressing change and bandaging. The present invention will be described below with reference to Figures 1 to 8 the schematic structural diagram of.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0030] Dressing changes are common clinical nursing procedures, primarily used to treat and care for wounds to promote healing, prevent infection, and alleviate patient discomfort. The dressing change nursing process includes preparation, removal of the old dressing, wound observation, periwound skin disinfection, wound disinfection, and re-bandaging and fixation. Regularly changing and fixing wounds can reduce wound infection and recurrence, helping to accelerate wound healing. Infection is one of the main obstacles to wound healing. Removing the old dressing, disinfecting the periwound skin, and wound disinfection during dressing changes can provide a suitable environment for the wound to prevent infection, reducing infection rates by 40% to 50%. Reducing infection significantly improves wound healing rates. The new dressing, applied to the wound, covers and protects the wound and absorbs wound secretions, promoting tissue repair and alleviating pain. According to Younge & Hinkley (2011), regular wound dressing changes can increase wound healing rates by 20% to 40%.

[0031] During the dressing change process, the wound is exposed to external stimuli again, which can cause pain to the patient. This is especially true when the nurse uses tweezers to slowly remove the old dressing. Since the healed tissue fibers or scabs on the wound surface are easily adhered to the old dressing, the nerve endings at the edge of the wound are often more sensitive. When the old dressing is removed, these tissue fibers or scabs are involved, which will stimulate the nerve endings and cause pain. In severe cases, the healed tissue fibers may be torn again, causing bleeding and severe pain.

[0032] In order to reduce the pain of patients during dressing changes, when changing the dressing of the patient's wound, cold compresses or ice compresses are usually used to pre-treat the wound if the wound is small, so that the nerve conduction speed around the wound is slowed down and the blood vessels are constricted, thereby reducing pain when the old dressing is removed. When the wound is large, local anesthesia is often used to avoid causing severe pain to the patient when removing the old dressing.

[0033] However, while the aforementioned cold compresses or ice compresses and local anesthesia can alleviate pain when removing old dressings, they not only hinder local blood circulation around the wound, affecting wound healing, but also produce condensed water that can contaminate the wound and cause infection. Local anesthesia can effectively relieve pain during dressing changes, but after the anesthetic wears off, the patient still experiences pain, and local anesthesia can have side effects and be addictive. Therefore, the aforementioned pain relief methods for dressing changes and removing old dressings all have drawbacks.

[0034] At present, when changing dressings and removing the old dressing, the nursing staff will first spray disinfectant water on the old dressing and use the disinfectant water to penetrate and soften the old dressing, so that the old dressing is separated from the tissue fibers or scabs on the wound, thus avoiding causing pain to the patient when removing the old dressing. The treatment method of softening the dressing with disinfectant water avoids physical stimulation to the wound and does not involve any drug or external force intervention, so there are no disadvantages such as side effects. However, it is found in clinical nursing dressing change operations that when the disinfectant water is sprayed on the old dressing and allowed to penetrate and soften it for a period of time, and then the old dressing is slowly removed with forceps, there is still a situation where the old dressing pulls the tissue fibers or scabs of the wound, causing pain to the patient.

[0035] After a large number of investigations, it is found that after the disinfectant water is sprayed on the old dressing, the disinfectant water will preferentially penetrate to the lower side of the old dressing, which is likely to cause some of the old dressing not to be softened, so that the old dressing is still adhered to some tissue fibers or scabs, resulting in pain to the patient when removing the old dressing. When the amount of disinfectant water sprayed is too much, the skin around the wound will become soft, white or maceration occurs, which will damage the skin barrier and increase the risk of wound infection for the patient.

[0036] Based on the above problems, a dressing change and bandaging auxiliary device provided by an embodiment of the present invention is used in cooperation with a spraying pipe on a connecting frame and a conveying element. The nursing staff holds the connecting frame so that the spraying pipe abuts against the old dressing on the patient's wound and moves, realizing that the disinfectant water is continuously sprayed from the first through hole on the spraying pipe onto the dressing. Then, it is used in cooperation with a suction pipe and a negative pressure element, and the disinfectant water on the dressing is driven to move horizontally and penetrate by the airflow, so that the disinfectant water is evenly dispersed to soften the old dressing, and the old dressing can be completely softened, thereby effectively separating from the tissue fibers or scabs on the wound, avoiding causing pain to the patient when removing the old dressing, improving the comfort of clinical nursing dressing change and bandaging. At the same time, a large amount of disinfectant water does not need to be used, preventing wound infection of the patient. The dressing change and bandaging device of the present invention has good effects, is convenient to use and has strong practicability, and is worthy of promotion.

[0037] Refer to Figure 1 and Figure 3 , Figure 1 is the front view of the dressing change and bandaging device of this embodiment, Figure 3 is the side view of the dressing change and bandaging device of this embodiment, as Figure 1 and Figure 3As shown in the figure, a dressing-changing and bandaging assistance device includes a connecting frame 1. A spraying pipe 2 is horizontally arranged at the bottom of the connecting frame 1. The spraying pipe 2 is fixedly connected to the connecting frame 1. A plurality of first through holes 21 are equidistantly arranged on one side of the spraying pipe 2 along its center line direction. The first through holes 21 are arranged obliquely downward. Both ends of the spraying pipe 2 are closed and its interior is communicated with a liquid storage tank through a pipeline. A conveying element is arranged on the liquid storage tank for conveying the disinfectant water in the liquid storage tank to the spraying pipe 2. A nursing staff holds the connecting frame 1, makes the spraying pipe 2 abut against the old dressing on the patient's wound and moves it. The disinfectant water is sprayed from the first through holes 21 onto the old dressing. A suction pipe 3 is horizontally arranged at the bottom of the connecting frame 1 and is located on the side of the spraying pipe 2 where the first through holes 21 are arranged. The suction pipe 3 is parallel to the center line of the spraying pipe 2. The suction pipe 3 is fixedly connected to the connecting frame 1. A plurality of second through holes 31 are equidistantly arranged on the suction pipe 3 along its center line direction and are located on the side of the suction pipe 3 close to the spraying pipe 2. The second through holes 31 are arranged obliquely downward. Both ends of the suction pipe 3 are closed and its interior is communicated with a negative pressure element to drive the disinfectant water on the old dressing to move and penetrate to soften it.

[0038] In the dressing-changing and bandaging assistance device in this embodiment, it can process the old dressing to be removed on the patient's wound during dressing change and bandaging. First, the nursing staff connects the spraying pipe 2 to the liquid storage tank through a pipeline. The liquid storage tank is filled with a disinfectant solution (normal saline or sterile water). Then, the suction pipe 3 is connected to the negative pressure element through a pipeline. After preparing the items and instruments (sterile gloves, sterile dressings, disinfectant solution, sterile forceps and scissors, bandages and tapes, sterile cotton balls or cotton swabs, etc.) for dressing change and bandaging, the nursing staff holds the top of the connecting frame 1, aligns the spraying pipe 2 with one side edge of the old dressing, and simultaneously starts the conveying element and the negative pressure element. The nursing operator slowly moves the connecting piece 1 along the longest side direction of the old dressing. The conveying element conveys the disinfectant solution in the liquid storage tank to the spraying pipe 2. The disinfectant solution is sprayed from the first through holes 21 of the spraying pipe 2 onto the old dressing. The negative pressure element sucks the gas in the suction pipe 3. The negative pressure airflow attracts the disinfectant solution sprayed onto the old dressing through the second through holes 31 on the suction pipe 3, driving the disinfectant solution that infiltrates the old dressing to move in the reverse direction of the connecting frame 1, thereby realizing the horizontal movement of the disinfectant solution in the old dressing, making the disinfectant water evenly dispersed to soften the old dressing. When the suction pipe 3 moves to the outside of the other end of the old dressing, adjust the position of the connecting frame 1 according to the position that the spraying pipe 2 did not pass through last time, so as to spray the disinfectant solution on all positions of the old dressing, and then move this device away from the patient's wound. After waiting for 5 - 10 minutes, the disinfectant solution can completely soften the old dressing. The nursing staff slowly removes the old dressing with forceps, and then observes the wound and disinfects the skin around the wound, disinfects the wound, re-bands and fixes, etc., so as to carry out dressing change and bandaging care for the patient's wound.

[0039] In this embodiment, when spraying disinfectant on the old dressing using the spray pipe 2, the suction pipe 3 drives the disinfectant on the old dressing to move horizontally and penetrate by means of negative pressure airflow. And during the process of adjusting the moving direction of the connecting frame 1 and repeating the operation, the suction pipe 3 can also suck away the excess disinfectant during the moving process. Therefore, in this embodiment, a collection bottle is provided on the pipeline between the suction pipe 3 and the negative pressure element to collect the sucked-away disinfectant.

[0040] The conveying element in this embodiment uses a liquid pump, and the negative pressure element uses a negative pressure pump. The dressing-changing and bandaging device is also provided with a controller, and the controller is electrically connected to the liquid pump and the negative pressure element respectively, so as to adjust the output power of the liquid pump and the negative pressure element during the operation process.

[0041] Refer to Figure 2 , Figure 2 is the top view of the dressing-changing and bandaging device in this embodiment. As shown in Figure 2 , as a further optimization scheme, in this embodiment, a plurality of support rings 4 are respectively sleeved on the spray pipe 2 and the suction pipe 3 at equal intervals, and the support rings 4 are respectively rotationally connected to the spray pipe 2 or the suction pipe 3 around their circumferences.

[0042] In this embodiment, by providing the support rings 4 on the spray pipe 2 and the suction pipe 3, a certain distance is maintained between the spray pipe 2, the suction pipe 3 and the old dressing. When the spray pipe 2 sprays disinfectant on the old dressing, splashing of the disinfectant is avoided, so that the disinfectant first penetrates into the old dressing. At the same time, when the negative pressure airflow on the suction pipe 3 sucks the disinfectant on the old dressing, the excessive attraction force on the disinfectant is avoided, and the disinfectant that has penetrated into the old dressing is sucked out, thereby improving the effect of the disinfectant penetrating and infiltrating the old dressing.

[0043] During the operation of the dressing-changing and bandaging device in this embodiment, the support rings 4 are used to abut against the old dressing, so as to avoid the spray pipe 2 and the suction pipe 3 blocking the view of the nursing staff observing the old dressing, thereby improving the convenience of the operation.

[0044] As a further optimization scheme, in this embodiment, a U-shaped support rod 6 is vertically arranged between the spray pipe 2 and the suction pipe 3. The two vertical ends of the U-shaped support rod 6 are respectively connected to the connecting frame 1, and a roller body 7 is sleeved on the horizontal section of the U-shaped support rod 6, and the roller body 7 is rotationally connected to the U-shaped support rod 6 around its circumference.

[0045] In this embodiment, the U-shaped support rod 6 and the roller 7 are used in cooperation to block between the spraying pipe 2 and the suction pipe 3 when the spraying pipe 2 and the suction pipe 3 are working, so as to prevent the disinfectant sprayed out from the first through hole from being sucked into the suction pipe 3. And after the disinfectant is sprayed onto the old dressing, the disinfectant will first move towards the inside of the old dressing (the side close to the wound). When the roller 7 moves, it presses the old dressing, squeezes out the disinfectant that has just penetrated into the old dressing and diffuses it outward, and then drives the disinfectant to penetrate and infiltrate horizontally and soften through the negative pressure air flow.

[0046] In this embodiment, when there is too much disinfectant sprayed onto the old dressing, when the roller 7 squeezes the old dressing, it can squeeze out the excessive disinfectant and adhere it to the roller 7. And after the roller 7 adheres to the disinfectant, it rotates towards the suction pipe 3 (as Figure 3 shown, the roller 7 rotates clockwise). The disinfectant adhered to the roller 7 is sucked into the suction pipe 3 by the negative pressure air flow, so as to prevent the excessive disinfectant from softening, whitening the skin around the wound or causing skin maceration, and preventing the risk of increasing the patient's wound infection.

[0047] Refer to Figure 5 , Figure 5 is the B-B cross-sectional view of the dressing-changing and bandaging device of this embodiment. As shown in Figure 5 , as a further optimization scheme, in this embodiment, counterbores 61 are vertically opened on the two vertical ends of the U-shaped support rod 6. A sliding rod 62 is arranged in the counterbore 61. The sliding rod 62 is slidably connected to the counterbore 61 vertically. One end of the sliding rod 62 away from the U-shaped support rod 6 is fixedly connected to the connecting frame 1. An elastic member 63 is arranged between the sliding rod 62 and the U-shaped support rod 6 to drive the roller 7 to move towards the side away from the connecting frame 1.

[0048] In this embodiment, by using the counterbore 61 on the vertical end of the U-shaped support rod 6 in cooperation with the sliding rod 62 and the elastic member 63, the U-shaped support rod 6 and the roller 7 can have a certain elastic activity range. When there are curved surfaces and other positions at the patient's wound, the roller 7 can keep pressing the old dressing, thus ensuring the stability of the dressing-changing and bandaging device.

[0049] As a further optimization scheme, in this embodiment, a connecting rod 65 is vertically arranged between the roller 7 and the connecting frame 1. One end of the connecting rod 65 is fixedly connected to the connecting frame 1, and a driving mechanism is arranged at the other end. The output end of the driving mechanism abuts against the roller 7 to drive the roller 7 to move back and forth vertically.

[0050] In this embodiment, the connecting rod 65 is used in conjunction with the driving mechanism. When treating the old dressing on the patient's wound, it can actively drive the roller body 7 to move back and forth vertically, so that the squeezing force of the roller body 7 on the old dressing changes, thereby enhancing the effect of the disinfectant in the old dressing to diffuse to the surrounding area, thereby accelerating the speed and effect of the disinfectant infiltrating the old dressing.

[0051] Reference Figure 4 and Figure 8 , Figure 4 This is the AA cross-sectional view of the dressing change and bandaging device of this embodiment. Figure 8 This is an enlarged schematic diagram of the dressing change and bandaging device at E in this embodiment. Figure 4 and Figure 8 As shown, in this embodiment, a specific structure of a driving mechanism is provided, which includes: a plum blossom cam 66, a roller 67 and a mounting seat 68. The plum blossom cam 66 is fixed on the roller body 7 and is coaxial therewith. The mounting seat 68 is fixed on the end of the connecting rod 65 away from the connecting frame 1. The roller 67 is arranged on the mounting seat 68 and is rotatably connected thereto. The roller 67 abuts against the plum blossom cam 66.

[0052] In this embodiment, the roller 67 is installed on the connecting rod 65 through the mounting seat 68. When the device is in treatment, when the roller body 7 abuts and moves against the old dressing on the patient's wound, the roller body 7 rotates at the same time, so that the plum blossom cam 66 and the roller 67 cooperate to drive the roller body 7 to move back and forth vertically, and at the same time, the rotation of the roller body 7 and the extrusion by moving back and forth vertically are carried out synchronously, thereby further improving the infiltration and softening treatment effect of the old dressing.

[0053] In this embodiment, a cross bar 64 is horizontally provided between the two sliding rods 62. The two ends of the cross bar 64 are fixedly connected to the sliding rods 62 respectively. The cross bar 64 can effectively shorten the length of the connecting rod 65, thereby preventing the roller body 7 from affecting the connecting rod 65 and causing shaking during rotation.

[0054] Reference Figure 7 , Figure 7 DD is a cross-sectional view of the dressing change and dressing device of this embodiment, as shown in FIG. Figure 7 As shown, as a further optimization solution, in this embodiment, an annular groove 71 is opened on the roller body 7, and the plum blossom-shaped cam 66 is arranged in the annular groove 71.

[0055] In this embodiment, an annular groove 71 is provided on the roller body 7, and the plum blossom cam 66 is provided in the annular groove 71 to avoid excessive squeezing of the wound by the plum blossom cam 66 when processing the old dressing, causing pain to the patient. At the same time, the roller 67 extends into the annular groove 71 and abuts against the annular groove 71 to restrict the roller 67, thereby further reducing the shaking of the roller 67 and the connecting rod 65 (along the axial direction of the roller 67).

[0056] As a further optimization solution, in this embodiment, the length of the roller body 7 is greater than the lengths of the spraying pipe 2 and the suction pipe 3 .

[0057] In this embodiment, the length of the roller body 7 is greater than the length of the spraying tube 2 and the suction tube 3, so that the disinfectant on the old dressing and the disinfectant just sprayed out of the spraying tube 2 can be effectively blocked as much as possible. At the same time, the range of squeezing and diffusing the disinfectant can be increased, thereby improving the effect and speed of softening the old dressing.

[0058] Reference Figure 6 , Figure 6 FIG. 2 is a cross-sectional view of the dressing changing and dressing device of this embodiment, as shown in FIG. Figure 6 As shown, as a further optimization solution, in this embodiment, a nozzle 5 is respectively provided on the first through hole 21 and the second through hole 31 , and the nozzle 5 is detachably fixedly connected to the spraying pipe 2 or the suction pipe 3 .

[0059] In this embodiment, by arranging the nozzle 5 on the first through hole 21 and the second through hole 31, the stability of spraying the disinfectant and the negative pressure airflow onto the old dressing can be enhanced, the disinfectant can be stably sprayed on the old dressing, and the disinfectant can be stably driven to move laterally and penetrate.

[0060] As a further optimization solution, in this embodiment, the inclination angle F of the first through hole 21 and the second through hole 31 ranges from 35° to 50°.

[0061] In this embodiment, the range of the inclination angle F of the first through hole 21 and the second through hole 31 is limited, and a dressing device with different inclination angles of the first through hole 21 and the second through hole 31 can be flexibly selected according to the different tissues of the patient's wound.

[0062] In this embodiment, when the inclination angle F of the first through hole 21 and the second through hole 31 is 35°, it is suitable for a wound that is inclined toward a raised position on the patient's body.

[0063] In this embodiment, when the inclination angle F of the first through hole 21 and the second through hole 31 is 45°, it is suitable for a wound that is inclined toward a flat position on the patient's body.

[0064] In this embodiment, when the inclination angle F of the first through hole 21 and the second through hole 31 is 50°, it is suitable for a wound that is inclined toward a concave position on the patient's body.

[0065] The above disclosure is only a preferred specific embodiment of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A dressing change and bandaging assistance device, characterized in that, Comprising: A connecting frame (1); A spraying pipe (2), horizontally arranged at the bottom of the connecting frame (1), the spraying pipe (2) is fixedly connected to the connecting frame (1), a plurality of first through holes (21) are equidistantly arranged on one side of the spraying pipe (2) along its center line direction, the first through holes (21) are arranged obliquely downward, both ends of the spraying pipe (2) are closed and its interior is communicated with a liquid storage tank through a pipeline; A conveying element, arranged on the liquid storage tank, for conveying the disinfectant water in the liquid storage tank to the spraying pipe (2), the caregiver holds the connecting frame (1), so that the spraying pipe (2) abuts against the old dressing on the patient's wound and moves, and the disinfectant water is sprayed from the first through holes (21) onto the old dressing; A suction pipe (3), horizontally arranged at the bottom of the connecting frame (1), and located on the side where the spraying pipe (2) is provided with the first through holes (21), the suction pipe (3) is parallel to the center line of the spraying pipe (2), the suction pipe (3) is fixedly connected to the connecting frame (1), a plurality of second through holes (31) are equidistantly arranged on the suction pipe (3) along its center line direction, and are located on the side of the suction pipe (3) close to the spraying pipe (2), the second through holes (31) are arranged obliquely downward, both ends of the suction pipe (3) are closed and its interior is communicated with a negative pressure element to drive the disinfectant water on the old dressing to move and penetrate to soften it.

2. The dressing change and bandaging assistance device according to claim 1, wherein A plurality of support rings (4) are respectively equidistantly sleeved on the spraying pipe (2) and the suction pipe (3), and the support rings (4) are respectively rotatably connected to the spraying pipe (2) or the suction pipe (3) around their circumferences.

3. The dressing change and bandaging assistance device according to claim 1, characterized in that A U-shaped support rod (6) is vertically arranged between the spraying pipe (2) and the suction pipe (3), two vertical ends of the U-shaped support rod (6) are respectively connected to the connecting frame (1), a roller body (7) is sleeved on the horizontal section of the U-shaped support rod (6), and the roller body (7) is rotatably connected to the U-shaped support rod (6) around its circumference.

4. The dressing change and bandaging assistance device according to claim 3, characterized in that, Sink holes (61) are respectively vertically opened on two vertical ends of the U-shaped support rod (6), sliding rods (62) are arranged in the sink holes (61), the sliding rods (62) are slidably connected to the sink holes (61) vertically, one end of the sliding rod (62) far from the U-shaped support rod (6) is fixedly connected to the connecting frame (1), and an elastic member (63) is arranged between the sliding rod (62) and the U-shaped support rod (6) to drive the roller body (7) to move towards the side far from the connecting frame (1).

5. The dressing change and bandaging assistance device according to claim 4, wherein, A connecting rod (65) is vertically arranged between the roller body (7) and the connecting frame (1), one end of the connecting rod (65) is fixedly connected to the connecting frame (1), and a driving mechanism is arranged at the other end, and the output end of the driving mechanism abuts against the roller body (7) to drive the roller body (7) to move back and forth vertically.

6. The dressing-changing and bandaging assistance device according to claim 5, characterized in that, The driving mechanism includes: a plum blossom-shaped cam (66), a roller (67) and a mounting seat (68), the plum blossom-shaped cam (66) is sleeved and fixed on the roller body (7) and is coaxial with it, the mounting seat (68) is fixedly arranged at the end of the connecting rod (65) far from the connecting frame (1), the roller (67) is arranged on the mounting seat (68) and is rotatably connected to it, and the roller (67) abuts against the plum blossom-shaped cam (66).

7. The dressing change and bandaging assistance device according to claim 6, characterized in that, An annular groove (71) is formed on the roller body (7), and the plum blossom-shaped cam (66) is arranged in the annular groove (71).

8. The dressing change and bandaging assistance device according to claim 3, characterized in that, The length of the roller body (7) is greater than the lengths of the spray pipe (2) and the suction pipe (3).

9. The dressing change and bandaging assistance device according to claim 1, characterized in that, Nozzles (5) are respectively arranged on the first through hole (21) and the second through hole (31), and the nozzles (5) are detachably and fixedly connected to the spray pipe (2) or the suction pipe (3).

10. The dressing change and bandaging assistance device according to claim 1, wherein, The range of the inclination angle F of the first through hole (21) and the second through hole (31) is 35° - 50°.

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