A human body treatment dressing device with automatic liquid replacement

Abstract

The present invention provides a human body treatment dressing device with automatic liquid exchange, which relates to the technical field of dressing devices, including a dressing patch, a dressing change mechanism for changing dressings, a discharge mechanism for discharging materials, a dressing change mechanism including a dressing sponge, an air injection tube, a diverter, an air pump, and a timer, and a discharge mechanism including a waste liquid pipe and a liquid storage tube. An exhaust valve is provided through the side end of the dressing patch, the dressing sponge is fixedly mounted on the inner side wall of the exhaust valve, and the diverter is fixedly mounted on the inner side wall of the airbag. This device is provided with a dressing patch and a dressing sponge for changing dressings, and discharges waste liquid by inflating the airbag and adding new medicine, thereby avoiding the mechanical stimulation of the skin around the wound caused by repeated tearing and peeling of the dressing in traditional dressing changes. For chronic wounds or fragile skin, it can reduce the risk of epidermal exfoliation, thereby improving the patient's comfort during wound treatment without the need for repeated tearing.

Description

Technical Field

[0001] The present invention belongs to the technical field of dressing equipment, and more specifically, relates to a human body therapeutic dressing equipment with automatic liquid replacement. Background Art

[0002] Medical dressings are functional medical materials that cover the surface of wounds. Their core function is to construct a dynamic microenvironment conducive to tissue regeneration through physical isolation and biochemical regulation, isolate the invasion of external pathogens and mechanical damage at the mechanical level, manage the balance of exudate at the physiological level, and carry and deliver active ingredients such as antibacterial agents and growth factors at the therapeutic level to inhibit infection and accelerate repair.

[0003] Chinese Patent Publication No. CN105407932A discloses an improved wound dressing comprising a bridging portion connecting two or more portions of an absorbent layer, which facilitates trimming the wound dressing to a suitable size. Some embodiments provide for trimming the dressing in gaps between the two or more portions of the absorbent layer when the dressing is applied to skin surrounding a wound, and sealing the exposed portion of the dressing after trimming.

[0004] Existing dressings have the following disadvantages when used:

[0005] 1. Traditional dressings need to be completely torn off and removed when changing. The shear force generated during this process can easily cause epidermal exfoliation or even secondary lacerations in the fragile skin around the wound. Repeated tearing not only causes pain to the patient, but also destroys the bridging of new epithelial cells, prolongs the inflammatory response cycle, causes discomfort to the patient, and affects wound healing.

[0006] 2. When draining fluid, some dressing change structures often use negative pressure suction dressing devices (such as NPWT systems), which generate local high-intensity adsorption vortices when draining exudate. When this unidirectional stress acts on the newly formed granulation tissue on the wound surface, it may cause the surrounding skin and newly formed granulation tissue to be involved, resulting in traction and strain on the wound surface, causing discomfort to the patient. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides a human body therapeutic dressing device with automatic liquid replacement to solve the above problems.

[0008] A human body treatment dressing device with automatic liquid exchange comprises a dressing patch, the dressing patch is provided with a dressing change mechanism for changing dressings, the dressing patch is provided with a discharge mechanism for discharging material, the dressing change mechanism comprises a dressing sponge, an air injection tube, a diverter, an air pump and a timer, the discharge mechanism comprises a waste liquid pipe and a liquid storage pipe, an exhaust valve is penetrated by the side end of the dressing patch, the dressing sponge is fixedly mounted on the inner side wall of the exhaust valve, the diverter is fixedly mounted on the inner side wall of the airbag, the waste liquid pipe is located at the lower end of the dressing patch, the air injection tube is penetrated and fixedly mounted on the circumferential end of the airbag, the liquid storage pipe is fixed to the upper end of the air pump, a flexible sealing pad is fixedly mounted on the side end of the dressing patch, and a mounting hole is penetrated by the inner side wall of the airbag. An exhaust valve is provided at the circumferential end of the airbag, a plurality of arrays of honeycomb holes are provided on the dressing sponge, the diverter is located at the upper end of the dressing sponge, a guide tube is fixedly installed on the upper end of the diverter, a plurality of one-way valves are provided at the lower end of the diverter, the waste liquid pipe is fixedly installed on the inner wall of the mounting hole, a one-way liquid valve is fixedly installed on the inner wall of the waste liquid pipe, a waste liquid collection bag is fixedly installed on the lower end of the waste liquid pipe, a first sealing valve is fixedly installed on the side end of the air pump, a second sealing valve is fixedly installed on the side end of the liquid storage pipe, a micro pump is provided on the inner wall of the liquid storage pipe, the guide tube is fixedly installed on the inner wall of the second sealing valve, and the end of the guide tube is fixedly connected to the micro pump in the liquid storage pipe.

[0009] Preferably, the end of the gas injection pipe is fixedly mounted on the inner wall of the first sealing valve.

[0010] Preferably, the timer is fixedly mounted on a side end portion of the air pump.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the present invention, a dressing patch and a dressing sponge that can be used for dressing changes are provided, and the air bag is inflated to discharge waste liquid and add new medicine, thereby avoiding the mechanical stimulation of the skin around the wound caused by repeated tearing of the dressing in traditional dressing changes. For chronic wounds or fragile skin, the risk of epidermal exfoliation can be reduced, thereby improving the patient's comfort during wound treatment without the need for repeated tearing.

[0013] In the present invention, an air bag, an air injection tube and an air pump are coordinated to squeeze out the waste liquid during dressing changes. The air bag extrusion drainage uses uniform positive pressure to push the waste liquid in the dressing sponge out. Compared with the local vortex and adsorption force generated by negative pressure suction, it can avoid shear damage to the new granulation tissue, and thus avoid secondary damage to the patient's wound during dressing changes, and the comfort is better.

[0014] In the present invention, a timer is provided so that timing operations can be performed on the timer when changing dressings, thereby avoiding the hysteresis and delay that may exist in manual dressing changes, or the disadvantages of forgetting to change dressings. The timer can automatically trigger the dressing change process according to the preset course of treatment, and prompt the medical staff through sound, eliminating the need for medical staff to constantly watch over the patient, thereby reducing the workload of the medical staff.

[0015] In the present invention, a dressing patch and a flexible sealing pad are provided to form a double composite barrier. The medical gel on the dressing patch provides a basis for epidermal adhesion, while the flexible sealing pad compensates for the dynamic deformation of the skin, ensuring the sealing of the liquid medicine during wound treatment, while avoiding the possible overflow of waste liquid discharge, and ensuring the progress of the dressing change process while adhering to the skin.

[0016] In the present invention, a diverter is provided in conjunction with a dressing sponge, and the diverter is attached to the edge of the dressing sponge in an arc shape. When changing the dressing, the medicine liquid can penetrate into the dressing sponge more evenly, thereby ensuring the therapeutic effect of the medicine liquid on the wound when the dressing sponge contacts the wound, promoting the penetration and coverage of the medicine liquid in the entire wound area, and improving the efficiency of drug utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the dressing of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the air pump of the present invention;

[0019] Figure 3 Schematic diagram of the structure of the gas injection pipe of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the flexible sealing gasket of the present invention;

[0021] Figure 5 This is a schematic diagram of the front structure of the dressing of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the dressing sponge of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the waste liquid pipe of the present invention;

[0024] Figure 8 It is a schematic diagram of the side structure of the dressing sponge of the present invention.

[0025] In the figure, the correspondence between the component names and the drawing numbers is: 1. Dressing patch; 11. Air bag; 12. Exhaust valve; 13. Flexible sealing pad; 14. Mounting hole; 2. Dressing sponge; 21. Honeycomb hole; 3. Diverter; 31. Guide tube; 4. Waste liquid pipe; 41. One-way liquid valve; 42. Waste liquid collection bag; 5. Air injection pipe; 6. Air pump; 61. First sealing valve; 7. Liquid storage tube; 71. Second sealing valve; 8. Timer. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0027] See also Figures 1-8 The present invention provides a human body treatment dressing device with automatic liquid change, comprising a dressing patch 1, a dressing change mechanism for changing dressings provided on the dressing patch 1, a discharge mechanism for discharging materials provided on the dressing patch 1, the dressing change mechanism comprising a dressing sponge 2, an air injection tube 5, a diverter 3, an air pump 6 and a timer 8, and the discharge mechanism comprising a waste liquid tube 4 and a liquid storage tube 7. When the integrity of the skin or mucous membrane is damaged due to trauma, chronic ulcers, surgical incisions, exudative dermatitis or infectious wounds, the medical dressing promotes wound healing and reduces complications through multiple mechanisms such as physical isolation of pathogens, active drug treatment and reduction of mechanical stimulation. When the patient undergoes dressing treatment, the user can align the dressing patch 1 with the position of the wound surface so that the dressing sponge 2 covers the wound surface and attach the dressing patch 1 to the skin. The dressing sponge 2 is provided with honeycomb holes 21, which can store the liquid medicine and be attached to the patient's wound surface for drug delivery treatment.

[0028] An exhaust valve 12 is provided at the side end of the dressing patch 1, the dressing sponge 2 is fixedly mounted on the inner side wall of the exhaust valve 12, the diverter 3 is fixedly mounted on the inner side wall of the air bag 11, the waste liquid pipe 4 is located at the lower end of the dressing patch 1, the air injection pipe 5 is fixedly mounted on the circumferential end of the air bag 11, the liquid storage pipe 7 is fixed to the upper end of the air pump 6, and a flexible sealing pad 13 is fixedly mounted on the side end of the dressing patch 1. In the initial stage of treatment, the dressing sponge 2 has already stored medicine at the initial stage, and the side of the dressing patch 1 is coated with medical gel. The user can directly attach the dressing patch 1 to the patient's skin so that the dressing sponge 2 covers the patient's wound. A flexible sealing pad 13 is also provided at the side end of the dressing patch 1. The flexible sealing pad 13 can fit the outer surface of the skin well and play a good sealing role in conjunction with the attachment of the dressing patch 1.

[0029] The inner wall of the airbag 11 is provided with a mounting hole 14, and the circumferential end of the airbag 11 is provided with an exhaust valve 12. The dressing sponge 2 is provided with a plurality of arrays of honeycomb holes 21. The diverter 3 is located at the upper end of the dressing sponge 2, and the upper end of the diverter 3 is fixedly installed with a flow guide tube 31. The lower end of the diverter 3 is provided with a plurality of one-way valves. The waste liquid pipe 4 is fixedly installed on the inner wall of the mounting hole 14, and the inner wall of the waste liquid pipe 4 is fixedly installed with a one-way liquid valve 41. The lower end of the waste liquid pipe 4 is fixedly installed with a waste liquid collection bag 42. The side end of the air pump 6 is fixedly installed with a first sealing valve 61. The user can operate the timing on the timer 8. When the set dressing change time is reached, the timer 8 will sound a reminder to change the dressing, and at this time the air pump 6 will be started first. The air pump 6 will inflate the interior of the airbag 11 through the air injection pipe 5, and the airbag 11 will gradually be filled with gas and deform and expand;

[0030] A second sealing valve 71 is fixedly installed on the side end of the liquid storage tube 7, a micro pump is provided on the inner side wall of the liquid storage tube 7, the guide tube 31 passes through and is fixedly installed on the inner side wall of the second sealing valve 71, the end of the guide tube 31 is fixedly connected to the micro pump in the liquid storage tube 7, the end of the air injection tube 5 is fixedly installed on the inner side wall of the first sealing valve 61, the timer 8 is fixedly installed on the side end of the air pump 6, the deformed air bag 11 will gradually and evenly squeeze the dressing sponge 2, after the dressing sponge 2 is squeezed, the waste liquid on the dressing sponge 2 will flow out from the honeycomb hole 21 and enter the one-way liquid valve 41 The waste liquid will enter the waste liquid pipe 4 through the one-way liquid valve 41 and finally enter the waste liquid collection bag 42. After the drainage is completed, the user can open the exhaust valve 12 to discharge the gas in the airbag 11. At this time, the timer 8 will open the liquid storage tube 7 again, and the micro pump in the liquid storage tube 7 will pump the medicine into the guide tube 31. The guide tube 31 will transfer the medicine into the diverter 3. The diverter 3 is distributed in an arc shape at the circumferential end of the dressing sponge 2, and then the dressing sponge 2 is evenly injected with medicine. After the dressing sponge 2 is filled with new medicine, a new round of treatment can be started.

[0031] Working principle: In the first step, when the integrity of the skin or mucous membrane is destroyed due to trauma, chronic ulcers, surgical incisions, exudative dermatitis or infectious wounds, the medical dressing promotes wound healing and reduces complications through multiple mechanisms such as physical isolation of pathogens, active drug treatment and reduction of mechanical stimulation. When the patient undergoes dressing treatment, the user can align the dressing patch 1 with the position of the wound so that the dressing sponge 2 covers the wound, and attach the dressing patch 1 to the skin. The dressing sponge 2 is provided with honeycomb holes 21, which can store the liquid medicine and be attached to the patient's wound for drug delivery treatment.

[0032] The second step is that in the initial treatment stage, the dressing sponge 2 has been filled with medicine in the initial stage, and the side of the dressing patch 1 is coated with medical gel. The user can directly attach the dressing patch 1 to the patient's skin so that the dressing sponge 2 covers the patient's wound. A flexible sealing pad 13 is also provided at the side end of the dressing patch 1. The flexible sealing pad 13 can fit the outer surface of the skin well and play a good sealing role in conjunction with the attachment of the dressing patch 1. When the dressing sponge 2 is attached to the wound for treatment, as the wound repair process advances, the medicine on the dressing sponge 2 is continuously absorbed. There are different types of patient wounds. Ordinary types of wounds can be uncovered without changing the dressing after the dressing is applied. However, for the treatment of some explosive infection wounds, high-flow corrosive exudate wounds, and large-area burn wounds in the acute exudation period, frequent dressing changes are required in a short period of time. The user can flexibly change the dressing on the patient's wound according to the patient's wound condition.

[0033] In the third step, the user can operate the timer 8. When the set dressing change time is reached, the timer 8 will sound a reminder to change the dressing, and at this time the air pump 6 will be started first. The air pump 6 will inject air into the air bag 11 through the air injection pipe 5. The air bag 11 will gradually be filled with gas and deformed and expanded. The deformed air bag 11 will gradually and evenly squeeze the dressing sponge 2. After the dressing sponge 2 is squeezed, the waste liquid on the dressing sponge 2 will flow out from the honeycomb hole 21 and enter the one-way liquid valve 41. The waste liquid will pass through the one-way liquid valve 41. The valve 41 enters the waste liquid pipe 4 and finally enters the waste liquid collection bag 42. After the drainage is completed, the user can open the exhaust valve 12 to discharge the gas in the airbag 11. At this time, the timer 8 will open the liquid storage tube 7 again. The micro pump in the liquid storage tube 7 will pump the liquid medicine into the guide tube 31. The guide tube 31 will transfer the liquid medicine into the diverter 3. The diverter 3 is distributed in an arc shape at the circumferential end of the dressing sponge 2, thereby evenly injecting the medicine into the dressing sponge 2. After the dressing sponge 2 is filled with new medicine, a new round of treatment can be started.

[0034] This device is equipped with a dressing patch 1 and a dressing sponge 2 for dressing change. By inflating the airbag 11 to discharge waste liquid and add new medicine, it avoids the mechanical stimulation of the skin around the wound caused by repeated tearing of the dressing during traditional dressing change. It can reduce the risk of epidermal exfoliation for chronic wounds or fragile skin, thereby improving the patient's comfort during wound treatment without repeated tearing;

[0035] The device is provided with an air bag 11, an air injection tube 5 and an air pump 6. When the waste liquid is squeezed out during the dressing change, the air bag 11 uses a uniform positive pressure to push the waste liquid out of the dressing sponge 2. Compared with the local vortex and adsorption force generated by negative pressure suction, it can avoid shear damage to the new granulation tissue, thereby avoiding secondary damage to the patient's wound surface during the dressing change, and its comfort is better.

[0036] The device is provided with a timer 8, which can be used to perform timing operations when changing dressings, thereby avoiding the hysteresis and delay that may exist in manual dressing changes, or the disadvantages of forgetting to change dressings. The timer 8 can automatically trigger the dressing change process according to the preset course of treatment and remind the medical staff through sound, eliminating the need for medical staff to constantly monitor and reducing the workload of medical staff.

[0037] This device is equipped with a dressing patch 1 and a flexible sealing pad 13, which form a double composite barrier. The medical gel on the dressing patch 1 provides a basis for epidermal adhesion, while the flexible sealing pad 13 compensates for dynamic deformation of the skin, ensuring the sealing of the liquid medicine during wound treatment and preventing the possible overflow of waste liquid discharge. It adheres to the skin and ensures the smooth progress of the dressing change process.

[0038] This device is equipped with a diverter 3 and a dressing sponge 2. The diverter 3 is attached to the edge of the dressing sponge 2 in an arc shape. When changing the dressing, it is convenient for the medicine to penetrate into the dressing sponge 2 more evenly, thereby ensuring the therapeutic effect of the medicine on the wound when the dressing sponge 2 contacts the wound, promoting the penetration and coverage of the medicine in the entire wound, and improving the efficiency of drug utilization.

[0039] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A human body treatment dressing device with automatic liquid exchange, comprising a dressing patch (1), characterized in that: The dressing patch (1) is provided with a dressing changing mechanism for changing the dressing, and the dressing patch (1) is provided with a material discharging mechanism for discharging the material; The dressing changing mechanism comprises a dressing sponge (2), an air injection tube (5), a diverter (3), an air pump (6) and a timer (8); the discharge mechanism comprises a waste liquid tube (4) and a liquid storage tube (7); an exhaust valve (12) is provided through the side end of the dressing patch (1); the dressing sponge (2) is fixedly mounted on the inner side wall of the exhaust valve (12); the diverter (3) is fixedly mounted on the inner side wall of the air bag (11); the waste liquid tube (4) is located at the lower end of the dressing patch (1); the air injection tube (5) is fixedly mounted on the circumferential end of the air bag (11); and the liquid storage tube (7) is fixed to the upper end of the air pump (6).

2. The human body treatment dressing device with automatic liquid replacement as claimed in claim 1, characterized in that: A flexible sealing pad (13) is fixedly mounted on the side end of the dressing patch (1), a mounting hole (14) is provided through the inner side wall of the airbag (11), and an exhaust valve (12) is provided at the circumferential end of the airbag (11).

3. The human body treatment dressing device with automatic liquid replacement as claimed in claim 2, characterized in that: The dressing sponge (2) is provided with a plurality of arrays of honeycomb holes (21), and the diverter (3) is located at the upper end of the dressing sponge (2).

4. The human body treatment dressing device with automatic liquid replacement as claimed in claim 3, characterized in that: A flow guide tube (31) is fixedly mounted on the upper end of the flow diverter (3), and a plurality of one-way valves are provided on the lower end of the flow diverter (3).

5. The human body treatment dressing device with automatic liquid replacement as claimed in claim 4, characterized in that: The waste liquid pipe (4) passes through and is fixedly mounted on the inner side wall of the mounting hole (14); a one-way liquid valve (41) is fixedly mounted on the inner side wall of the waste liquid pipe (4).

6. The human body treatment dressing device with automatic liquid replacement as claimed in claim 5, characterized in that: A waste liquid collection bag (42) is fixedly mounted on the lower end of the waste liquid pipe (4), and a first sealing valve (61) is fixedly mounted on the side end of the air pump (6).

7. The human body treatment dressing device with automatic liquid replacement as claimed in claim 6, characterized in that: A second sealing valve (71) is fixedly mounted on the side end of the liquid storage tube (7), and a micro pump is provided on the inner side wall of the liquid storage tube (7).

8. The human body treatment dressing device with automatic liquid replacement as claimed in claim 7, characterized in that: The guide tube (31) passes through and is fixedly mounted on the inner wall of the second sealing valve (71), and the end of the guide tube (31) is fixedly connected to the micro pump in the liquid storage tube (7).

9. The human body treatment dressing device with automatic liquid replacement as claimed in claim 8, characterized in that: The end of the gas injection pipe (5) is fixedly mounted on the inner side wall of the first sealing valve (61).

10. The human body treatment dressing device with automatic liquid replacement according to claim 9, characterized in that: The timer (8) is fixedly mounted on the side end of the air pump (6).

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