Multifunctional auxiliary device capable of repeatedly pasting dressing on wound in wound oxygen therapy

Abstract

The invention belongs to the technical field of medical instruments, and discloses a lower limb wound multifunctional auxiliary device capable of repeatedly pasting dressing, which comprises a universal base, a double-cavity air bag, an overturning cover, medical auxiliary materials and a filter screen. The universal base is of an oval annular structure and comprises a base body and an annular boss. The double-cavity air bag is of an oval annular structure and comprises a lower-layer air bag body and an upper-layer air bag body which are symmetrically arranged up and down. The overturning cover comprises an oval cover plate body and a storage top cover, a filter screen is detachably installed in an inner cavity of the storage top cover, and the top of the storage top cover is connected with a negative pressure pipeline and an oxygen supply pipeline. The medical dressing is compact in structure, novel in design and capable of being suitable for oxygenation treatment of wounds of different sizes of four limbs, the mode that the fixing bandage and the double-cavity air bag are matched is adopted, the fixing effect of the medical dressing is enhanced, the infection risk of the wounds is reduced, and the wound healing effect is promoted; a large amount of repeated work of nurses is relieved, and the comfort level of patients is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices and relates to a wound adhesive dressing, and in particular to a multifunctional auxiliary device for wound oxygen therapy with a reusable wound adhesive dressing. Background Art

[0002] Medical dressings are medical materials used to cover sores, wounds or other damages in clinical treatment. The super absorbent composite layer set inside the dressing absorbs the liquid flowing out of the affected area into the dressing. After the patient is injured, the wound on the skin is prone to infection or breeding bacteria, and medical dressings need to be applied to the wound. At present, the medical dressings commonly used in surgical wound dressing are mostly disposable. The operation of attaching the wound is troublesome, and after contacting the wound surface, the blood, body fluids and other slurries are absorbed by the dressing and become dry, which is easy to harden. The hardened dressing not only reduces the air permeability; but also irritates the wound and increases the pain of the patient. Some dressings are lifted after hardening, resulting in loose wound dressing, making the wound susceptible to external infection, affecting the treatment effect, and causing great pain to the patient. Furthermore, the existing medical absorbent dressings need to be cut into different sizes according to the size of the wound surface of the wound when used, and then the cut medical dressings are fixed on the skin surface of the affected area with the help of bandages, medical tapes, etc., which is extremely inconvenient for clinical use, easy to separate from the wound, and not conducive to the healing of the patient's wound.

[0003] In addition, in order to improve the healing effect of patients' wounds, local oxygen therapy has been developed in the prior art. Its main solution is to continuously deliver pure oxygen to the wound to meet the growth needs of cells in the wound to accelerate the healing of the wound. For example, the patent CN105073077A discloses a dressing for wound treatment, which includes: a sealing layer; a spacer material; a first layer, wherein the spacer material is located between the sealing layer and the first layer; and a first conduit in fluid communication with the spacer material, wherein the conduit includes a plurality of holes and may also include a plurality of distribution channels. Pure oxygen is delivered to the spacer material through the distribution channel to perform oxygenation treatment on the patient's wound.

[0004] However, the medical dressing disclosed in the patent CN105073077A has an integrated structure design of the sealing layer, the spacer material, the first layer, the catheter, the multiple distribution channels and the absorption layer. After the absorption layer absorbs a certain amount of wound exudate, it needs to be replaced as a whole, and cannot be reused, which has a high cost. In addition, the size of the medical dressing is fixed, and it cannot be fully applied to different patient wounds according to actual needs, which has certain limitations. At the same time, the medical dressing is fixed to the patient's skin surface with an adhesive at the bottom, which also has the problem of easy falling off and unreliable fixation. Summary of the invention

[0005] In order to solve the above technical problems existing in the existing medical dressings, the present invention provides a multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing which is flexible in use, has a wide range of applications and can be reused.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A multifunctional auxiliary device for wound oxygen therapy with a re-adhesive dressing, comprising a universal base, a double-chamber airbag, a flip cover, a medical auxiliary material detachably arranged in the double-chamber airbag, and a filter net detachably arranged in the flip cover, wherein:

[0008] The universal base is an elliptical annular structure, which includes a base body and an annular boss arranged at the lower end of the outer peripheral wall of the base body, the inner cavity of the base body is provided with the double-cavity airbag, and two groups of asymmetrically arranged arc-shaped sliding rods are arranged on the annular boss, and the first strap and the second strap are slidably arranged on the two arc-shaped sliding rods respectively;

[0009] The dual-chamber airbag is an elliptical annular structure, which includes a lower airbag and an upper airbag arranged symmetrically in the upper and lower directions, the lower airbag and the upper airbag are connected on the left and right sides by a first connecting belt, and the front and rear ends are connected between the vertices of the short semi-axis by a second connecting belt, and the front and rear second connecting belts are detachably mounted on the limit blocks with cutouts on the front and rear inner side walls of the base body; and

[0010] The flip cover includes an elliptical cover body and a storage top cover arranged at the center position of the top of the cover body; the cover body is an elliptical structure, and its flip buckle is arranged on the top of the base body, and its bottom is sealed and connected to the upper airbag; the filter net is detachably installed in the inner cavity of the storage top cover, and the negative pressure pipeline and the oxygen supply pipeline are connected to the top.

[0011] Preferably, the base body and the annular boss at the lower end of the outer peripheral wall are an integrally formed structure, which is made of deformable silicone material.

[0012] Preferably, both ends of the two groups of asymmetrically arranged arc-shaped sliding rods are detachably mounted on the fixing column at the top of the annular boss by means of screw clamps, wherein:

[0013] The two arc-shaped sliding rods are both made of non-deformable stainless steel or aluminum alloy. The sliding sleeve on one of the arc-shaped sliding rods is provided with the first binding strap, and the sliding sleeve on the other arc-shaped sliding rod is provided with the second binding strap.

[0014] Preferably, a first hinge block is provided at the vertex position of the short semi-axis of the rear end outer wall of the base body, and a first clamping block is provided at the vertex position of the short semi-axis of the front end outer wall; and

[0015] The inner side walls on the left and right sides of the base body are provided with arc-shaped grooves along their circumference for accommodating the shaping control strip, and the arc-shaped grooves are provided with a plurality of slots for snap-connecting the end clamps of the shaping control strip at equal intervals along their length direction.

[0016] Preferably, the lower airbag, the upper airbag, the first connecting belt and the second connecting belt are an integrally formed structure, which is made of rubber material;

[0017] The first connecting belt is gap-connected with the second connecting belts on both sides, and the total arc length of the left and right second connecting belts accounts for 7 / 10-9 / 10 of the circumference of the dual-chamber airbag.

[0018] Preferably, when the dual-chamber airbag is inflated, the lower airbag at the bottom thereof is sealed against the patient's skin surface, and the upper airbag at the top is sealed against the lower surface of the cover plate body;

[0019] Wherein, an inflation connector is arranged on the outer side wall of the first connecting belt at the rear end, the inflation connector passes through the through hole on the rear side wall of the base body and extends to the outside, and an inflation valve is arranged on the outer end of the inflation connector.

[0020] Preferably, the cover body and the storage top cover are an integrally formed structure, which is made of plastic material;

[0021] Wherein, a second hinge block hingedly connected to the first hinge block is provided at the short semi-axis vertex position of the rear end outer wall of the cover body, and a second clamping block buckledly connected to the first clamping block is provided at the short semi-axis vertex position of the front end outer wall;

[0022] The storage top cover is a circular cylindrical structure with an opening at the bottom, a transparent observation window is arranged at the top, and a plurality of hooks for limiting the installation of the filter screen are arranged at intervals on the inner periphery of the bottom.

[0023] Preferably, the proximal end of the negative pressure pipeline is detachably mounted on the storage top cover, and an adjustable negative pressure control valve is provided on the proximal end, and the distal end is externally connected to a vacuum pump; and

[0024] The proximal end of the oxygen supply pipeline is detachably mounted on the storage top cover, and an adjustable oxygen supply control valve is arranged on the proximal end, and the distal end is externally connected to an oxygen tank.

[0025] Preferably, the filter screen is made of a highly breathable non-woven fabric material, and a humidity indicator strip is provided on the top of the filter screen at a position corresponding to the transparent observation window on the storage top cover.

[0026] Preferably, the multifunctional auxiliary device for wound oxygen therapy with re-adhesive dressing also includes a shaping control strip movably arranged between the left and right sides of the double-chamber airbag and the left and right inner side walls of the universal base;

[0027] The plastic control strip can be stored in the arc-shaped grooves of the left and right inner side walls of the base body, and is made of plastic low-carbon steel, copper, aluminum or plastic material;

[0028] The two ends of the shaping control strip are respectively provided with clamping heads which can be detachably connected with a plurality of clamping slots in the arc-shaped groove, and a plurality of square holes arranged at intervals are opened on the strip along the length direction.

[0029] The present invention adopts the above technical solution, which has the following technical effects compared with the prior art:

[0030] (1) The multifunctional dressing auxiliary device provided by the present invention has a double-chamber airbag arranged in the universal base, and uses the inflated double-chamber airbag and the flip cover on the top to form a closed oxygenated space in the universal base. On the one hand, the dressing can be better fitted to the wound, and on the other hand, the sealed space can be used to achieve oxygenation therapy and negative pressure suction of wound exudate. The medical dressing can be flexibly replaced according to needs, and the use is flexible and convenient;

[0031] (2) The universal base adopts an elliptical ring structure design. By installing an asymmetrically arranged arc-shaped sliding rod on its outer periphery, the movable first strap and the second strap can slide left and right on the arc-shaped sliding rod respectively and be bound to the patient's limbs to adjust the universal base in all directions, so that the universal base can cover wounds of different directions and sizes to the greatest extent, greatly improving the application range of the auxiliary device;

[0032] (3) The double-chamber airbag adopts a lower airbag and an upper airbag structure design that are connected up and down, which can achieve simultaneous inflation and deflation. When the lower airbag is inflated to make it fit tightly against the patient's skin surface, the upper airbag can be inflated and fit tightly against the lower surface of the flip cover at the same time, thereby forming a closed oxygenated space inside the double-chamber airbag, which is convenient for oxygenation treatment and suction and discharge of wound exudate;

[0033] (4) A shaping control strip is provided between the dual-chamber airbag and the universal bases on the left and right sides. The shaping control strip is hidden in the arc-shaped groove on the inner wall of the universal base when not in use. When in use, the two ends of the shaping control strip are buckled and fixed in the corresponding slots as needed, so as to shape the dual-chamber airbag from both sides to control the shape and size of the inner cavity oxygenation space, thereby being suitable for oxygenation treatment of wounds of smaller sizes, further improving the scope of application;

[0034] (5) The wound oxygen therapy re-adhesive dressing multifunctional auxiliary device has a compact structure and novel design. It can be used for oxygenation treatment of wounds of different sizes on the limbs. It adopts a fixed strap and a double-chamber air bag to enhance the fixation effect of the medical dressing, reduce the risk of infection of the wound, and promote the wound healing effect. It also reduces a lot of repetitive work for nurses and improves the comfort of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The three-dimensional structure of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 2 The three-dimensional structure of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing according to the present invention;

[0038] Figure 4 It is a longitudinal cross-sectional structural schematic diagram of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing according to the present invention;

[0039] Figure 5 The exploded structure of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 6 The exploded structure of a multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown in FIG. Figure 1 ;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of a multifunctional auxiliary device for wound oxygen therapy with a reusable wound dressing according to the present invention, with the flip cover in an open state Figure 1 ;

[0042] Figure 8 A schematic diagram of the three-dimensional structure of a multifunctional auxiliary device for wound oxygen therapy with a reusable wound dressing according to the present invention, with the flip cover in an open state Figure 2 ;

[0043] Fig. 9 The three-dimensional structure of the universal base in the multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing of the present invention is shown in FIG. Figure 1 ;

[0044] Fig.10The three-dimensional structure of the universal base in the multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing of the present invention is shown in FIG. Figure 2 ;

[0045] Fig.11 It is a schematic diagram of the side structure of a universal base in a multifunctional auxiliary device for re-adhesive wound dressing for oxygen therapy of wounds according to the present invention;

[0046] Fig.12 It is a schematic diagram of the top view of the structure of a universal base in a multifunctional auxiliary device for re-adhesive wound dressing for oxygen therapy of wounds according to the present invention;

[0047] Fig.13 It is a schematic diagram of the transverse cross-sectional structure of a universal base in a multifunctional auxiliary device for re-adhesive wound dressing for oxygen therapy of wound surface according to the present invention;

[0048] Fig.14 It is a schematic diagram of the three-dimensional structure of a double-chamber airbag in a multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing according to the present invention;

[0049] Fig.15 It is a schematic diagram of the transverse cross-sectional structure of a double-chamber airbag in a multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing according to the present invention;

[0050] Fig.16 The three-dimensional structure of the flip cover in the multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown. Figure 1 ;

[0051] Fig.17 The three-dimensional structure of the flip cover in the multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention is shown. Figure 2 ;

[0052] Fig.18 It is a schematic diagram of the structure of the flip cover in a multifunctional auxiliary device for re-adhesive wound dressing for oxygen therapy of wound surface according to the present invention;

[0053] Fig.19 It is a schematic diagram of the transverse cross-sectional structure of a flip cover in a multifunctional auxiliary device for wound oxygen therapy and re-adhesive dressing of the present invention;

[0054] Fig. 20 The present invention is a schematic diagram of the three-dimensional structure of a shaping control strip in a multifunctional auxiliary device for a re-adhesive wound dressing for oxygen therapy of a wound. DETAILED DESCRIPTION

[0055] The present invention is described in detail and specifically by specific examples below to provide a better understanding of the present invention, but the following examples do not limit the scope of the present invention.

[0056] In some embodiments, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing is provided, which mainly includes a universal base 100, a dual-chamber airbag 200, a flip cover 300, a medical auxiliary material 400 and a filter 500. The medical auxiliary material 400 is detachably arranged in the dual-chamber airbag 200, the dual-chamber airbag 200 is installed in the universal base 100, and the filter 500 is detachably arranged in the flip cover 300.

[0057] Specifically, Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, in order to cover wounds of different directions and sizes to the greatest extent and improve the application range of the auxiliary device, the universal base 100 adopts an elliptical ring structure design, which mainly includes a base body 101 and an annular boss 102 arranged at the lower end of the outer peripheral wall of the base body 101, forming an L-shaped cross-sectional structure. The base body 101 is a load-bearing frame body, mainly used to install the dual-chamber airbag 200 and the flip cover 300, and the dual-chamber airbag 200 is arranged in the inner cavity of the base body 101.

[0058] In order to cooperate with the bandage to realize the universal adjustment of the auxiliary device and to meet the complete coverage of different wound directions, two groups of asymmetrically arranged arc-shaped sliding rods 103 are provided on the annular boss 102, and the two ends of the arc-shaped sliding rods 103 are respectively fixedly mounted on the fixed column 104. The first bandage 105 and the second bandage 106 are respectively slidably provided on the two arc-shaped sliding rods 103, and the first bandage 105 and the second bandage 106 are conventional medical bandages, such as buckle bandages or Velcro bandages. When in use, the first bandage 105 and the second bandage 106 are manually wrapped around the patient's limbs, and connected and fixed to fix the auxiliary device as a whole to the patient's wound. The patient's limbs include either upper limbs, lower limbs or torso parts, and bandages of different lengths can be provided as needed.

[0059] like Fig.13 and Fig.14As shown, like the universal base 100, the dual-chamber airbag 200 also adopts an elliptical ring structure design. In order to achieve a sufficient seal with the patient's skin and the flip cover 300. The dual-chamber airbag 200 mainly includes a lower airbag 201 and an upper airbag 202 arranged symmetrically in the upper and lower layers, and the left and right sides of the lower airbag 201 and the upper airbag 202 are connected and communicated by a first connecting belt 203. The first connecting belt 203 has a certain length, which can still maintain the sealing between its periphery and the base body 101 when it is folded.

[0060] The front and rear ends of the lower airbag 201 and the upper airbag 202 are connected and communicated through the second connecting belt 204 between the vertices of the minor semi-axis, and the front and rear second connecting belts 204 are detachably mounted on the limit blocks 107 with cutouts 108 on the front and rear inner side walls of the base body 101. When assembling the auxiliary device, the dual-chamber airbag 200 is manually inserted into the base body 101, and the second connecting belt 204 is manually inserted into the square hole on the limit block 107 through the cutout 108 to achieve the limit fixation of the dual-chamber airbag 200 and prevent the dual-chamber airbag 200 from displacement and falling off after inflation.

[0061] The multifunctional dressing auxiliary device arranges a double-chamber airbag 200 in a universal base 100, and utilizes the inflated double-chamber airbag 200 in conjunction with the flip cover 300 on the top to form a closed oxygenated space in the universal base 100. On the one hand, the dressing can be better fitted to the wound, and on the other hand, the sealed space can be used to achieve oxygenation therapy and negative pressure suction of wound exudate, and the medical auxiliary material 400 can be flexibly replaced as needed, so the use is flexible and convenient.

[0062] like Fig.15 , Fig.16 , Fig.17 , Fig.18 and Fig.19 As shown, in order to facilitate the installation and replacement of the medical auxiliary material 400 and the filter 500, the flip cover 300 is installed on the universal base 100 in a flip structure. The flip cover 300 mainly includes an elliptical cover body 301 and a storage top cover 302 arranged at the top center of the cover body 301.

[0063] In order to achieve a sealed fit with the universal base 100, the cover body 301 is flat and also adopts an elliptical structural design. It can be flipped and buckled to be installed on the top of the base body 101, and its bottom is sealed and connected to the upper airbag 202. The filter 500 is detachably installed in the inner cavity of the storage top cover 302, and the negative pressure pipeline 303 and the oxygen supply pipeline 305 are connected to the top.

[0064] In some of the embodiments, Fig. 9 and Fig.10As shown, the base body 101 and the annular boss 102 at the lower end of the outer peripheral wall are an integrally formed structure, which is made of a deformable silicone material and can be deformed under the pulling action of the first strap 105 and the second strap 106 and tightly attached to the patient's skin surface.

[0065] Both ends of the two asymmetrically arranged arc-shaped slide rods 103 are detachably mounted on the fixing column 104 on the top of the annular boss 102 by screw clamps. The first binding band 105 is slidably sleeved on one of the arc-shaped slide rods 103, and the second binding band 106 is slidably sleeved on the other arc-shaped slide rod 103.

[0066] The two arc-shaped sliding rods 103 are both made of non-deformable stainless steel or aluminum alloy, have a certain structural strength, and will not be deformed due to the pulling of the first strap 105 and the second strap 106. The structure is stable, and the relative positions of the first strap 105 and the second strap 106 on the arc-shaped sliding rod 103 can be flexibly adjusted as needed, thereby adjusting the covering position of the base body 101 and the dual-chamber airbag 200.

[0067] By adopting an elliptical ring structure design for the universal base 100 and installing an asymmetrically arranged arc-shaped sliding rod 103 on its outer periphery, the movable first strap 105 and the second strap 106 can slide left and right on the arc-shaped sliding rod 103 respectively and be bound to the patient's limbs to perform universal adjustment on the universal base 100, so that the universal base 100 can cover wounds of different directions and sizes to the greatest extent, thereby greatly improving the scope of application of the auxiliary device.

[0068] In some of the embodiments, Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, in order to realize the flip connection between the flip cover 300 and the universal base 100, a first hinge block 109 is provided at the short semi-axis vertex position of the rear end outer wall of the base body 101, and a first clamping block 110 is provided at the short semi-axis vertex position of the front end outer wall. The first hinge block 109 is hingedly connected to the rear end of the flip cover 300, and the first clamping block 110 is detachably connected to the front end of the first clamping block 110.

[0069] In addition, to facilitate the installation and flexible adjustment of the shaping control strip 600, an arc-shaped groove 111 for accommodating the shaping control strip 600 is opened along its circumference on the inner side walls on the left and right sides of the base body 101, and a number of card slots 112 for snap-connecting the end clamp 601 of the shaping control strip 600 are opened on the arc-shaped groove 111 at equal intervals along its length direction.

[0070] In some of the embodiments, Fig.14 and Fig.15 As shown, the lower airbag 201, the upper airbag 202, the first connecting belt 203 and the second connecting belt 204 are an integrally formed structure made of rubber material. The lower airbag 201 and the upper airbag 202 are directly connected through the first connecting belt 203 and the second connecting belt 204, and can be inflated and deflated synchronously.

[0071] It is worth noting that the first connecting belt 203 is connected with the second connecting belts 204 on both sides with a gap, and the total arc length of the left and right second connecting belts 204 accounts for 7 / 10-9 / 10 of the circumference of the double-chamber airbag 200. When the second connecting belt 204 is folded and contracted with the layer airbags 201 and the upper layer airbag 202 on both sides under the limiting action of the shaping control strip 600, its two ends can maintain a close fit with the inner wall of the base body 101, while achieving oxygenation treatment suitable for smaller wounds, avoiding the occurrence of air leakage.

[0072] When in use, the dual-chamber airbag 200 is in an inflated state, with the lower airbag 201 at the bottom thereof sealingly attached to the patient's skin surface, and the upper airbag 202 at the top thereof sealingly attached to the lower surface of the cover body 301 .

[0073] In addition, an air charging connector 205 is provided on the outer side wall of the first connecting belt 203 at the rear end, and the air charging connector 205 extends to the outside through the through hole on the rear side wall of the base body 101, and an air charging valve 206 is provided on the outer end of the air charging connector 205. The air charging connector 205 is connected to an air pump through a hose, and the opening and closing of the air charging is controlled by the air charging valve 206.

[0074] The double-chamber airbag 200 adopts a structural design of a lower airbag 201 and an upper airbag 202 that are connected up and down, and can achieve simultaneous inflation and exhaust and contraction. When the lower airbag 201 is inflated to make it fit tightly against the patient's skin surface, the upper airbag 202 can simultaneously expand and fit tightly against the lower surface of the flip cover 300, thereby forming a closed oxygenated space inside the double-chamber airbag 200, which is convenient for oxygenation therapy and suction and discharge of wound exudate.

[0075] In some of the embodiments, Fig.16 , Fig.17 , Fig.18 and Fig.19As shown, the cover body 301 and the storage top cover 302 are an integrally formed structure, which is made of plastic material by integral injection molding. A second hinge block 308 hingedly connected to the first hinge block 109 is provided at the vertex position of the short semi-axis of the rear end outer wall of the cover body 301, and a second clamping block 309 snap-connected to the first clamping block 110 is provided at the vertex position of the short semi-axis of the front end outer wall. The second hinge block 308 and the second clamping block 309 are hingedly connected and snap-connected to the base body 101 to achieve the flip installation of the flip cover 300.

[0076] The storage cover 302 is a circular cylindrical structure with an opening at the bottom, a transparent observation window 307 is provided at the top, and a plurality of hooks 310 are provided at intervals on the inner periphery of the bottom for limiting the installation of the filter 500. The filter 500 is installed in the storage cover 302 by buckles and is fixed by the plurality of hooks 310 to prevent the filter 500 from falling off, and also facilitates the installation, replacement and maintenance of the filter 500.

[0077] In some of the embodiments, Fig.16 and Fig.17 As shown, the proximal end of the negative pressure pipeline 303 is detachably mounted on the storage top cover 302, and an adjustable negative pressure control valve 304 is provided on the proximal end thereof, and a vacuum pump is externally connected to the distal end thereof. The proximal end of the oxygen supply pipeline 305 is detachably mounted on the storage top cover 302, and an adjustable oxygen supply control valve 306 is provided on the proximal end thereof, and an oxygen tank is externally connected to the distal end thereof.

[0078] According to the needs, in order to adapt to a variety of equipment and be compatible with a variety of oxygen equipment and pipeline specifications, the negative pressure pipeline 303 and the oxygen supply pipeline 305 use standard interfaces or adapters at both ends to meet the needs of different users. The adjustable negative pressure control valve 304 and the adjustable oxygen supply control valve 306 can use a rotary control valve or a hose flow regulating pipe clamp, allowing medical staff or patients to adjust the oxygen flow and adsorption negative pressure according to the actual situation of the wound.

[0079] In some of the embodiments, Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the medical dressing 400 can be a conventional commercially available dressing. For example, the medical dressing 400 is composed of an upper layer and a bottom layer arranged in an upper and lower manner. The upper layer is made of highly absorbent foam material, which can absorb wound exudate and maintain a moist environment to promote healing. The bottom layer has a surface of a hydrogel adhesive, which is suitable for direct contact with the skin to reduce irritation to the wound.

[0080] In actual use, the medical dressing 400 is cut to a suitable size according to the wound size and the size of the oxygenated space inside the double-chamber airbag 200 after adjustment. The medical dressing 400 installed in the double-chamber airbag 200 is easy to disassemble, which is convenient for the user to re-seal after adding medicine. And as needed, a color indicator can be added to the medical dressing 400 to indicate whether the medicine has been added or released.

[0081] In some embodiments, the filter 500 is made of a highly breathable non-woven fabric, and a humidity indicator strip 501 is provided on the top thereof corresponding to the transparent observation window 307 on the storage top cover 302. The purpose of providing the filter 500 is to filter the waste gas and wound secretions generated by oil oxygen supply and discharge them through negative pressure. By designing the humidity indicator strip 501 on the filter 500 as a humidity indicator, the replacement time of the medical dressing 400 can be displayed according to the change of wound exudate.

[0082] In some of the embodiments, Figure 3 , Figure 5 , Figure 6 and Fig. 20 As shown, the multifunctional auxiliary device further includes a molding control strip 600 movably disposed between the left and right sides of the dual-chamber airbag 200 and the left and right inner side walls of the universal base 100 .

[0083] The shaping control strip 600 can be received in the arc-shaped grooves 111 on the left and right inner walls of the base body 101, and is made of low-carbon steel, copper, aluminum or plastic. The two ends of the shaping control strip 600 are respectively provided with a clamping head 601 that can be detachably connected to a plurality of clamping slots 112 in the arc-shaped groove 111, and a plurality of square holes 602 arranged at intervals are opened on it along the length direction.

[0084] When in use, the double-chamber airbag 200 is in an uninflated state, the shaping control strip 600 is straightened, and its two ends are fixed and buckled in the corresponding slots 112. During this process, the left and right sides of the double-chamber airbag 200 are squeezed to bend or fold inward, and the oxygenated space surrounded by the double-chamber airbag 200 is further compressed by the left and right shaping control strips 600 to meet the oxygenation treatment needs of smaller wounds.

[0085] By setting a shaping control strip 600 between the double-chamber airbag 200 and the inner side of the universal base 100 on the left and right sides, the shaping control strip 600 is hidden in the arc-shaped groove 111 of the inner wall of the universal base 100 when not in use. When in use, the two ends of the shaping control strip 600 are snap-fastened in the corresponding card slots 112 as needed, so that the double-chamber airbag 200 can be shaped from both sides to control the shape and size of its inner cavity oxygenation space, thereby being suitable for oxygenation treatment of smaller wounds, further improving the scope of application.

[0086] In summary, the multifunctional auxiliary device for wound oxygen therapy and re-adhesive wound dressing has a compact structure and novel design, and can be used for oxygenation treatment of wounds of different sizes on the limbs. It adopts a fixed strap and a double-chamber airbag to enhance the fixation effect of the medical dressing 400, reduce the risk of infection of the wound, and promote wound healing. It also reduces a lot of repetitive work for nurses and improves the comfort of patients.

[0087] The specific embodiments of the present invention are described in detail above, but they are only examples, and the present invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions made to the present invention are also within the scope of the present invention. Therefore, the equalization changes and modifications made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims

1. A multifunctional auxiliary device for wound oxygen therapy with reusable dressing, characterized in that: The invention comprises a universal base (100), a double-chamber airbag (200), a flip cover (300), a medical auxiliary material (400) detachably arranged in the double-chamber airbag (200), and a filter net (500) detachably arranged in the flip cover (300), wherein: The universal base (100) is an elliptical annular structure, comprising a base body (101) and an annular boss (102) arranged at the lower end of the outer peripheral wall of the base body (101); the inner cavity of the base body (101) is provided with the double-chamber airbag (200); two groups of asymmetrically arranged arc-shaped sliding rods (103) are arranged on the annular boss (102); a first binding strap (105) and a second binding strap (106) are respectively slidably arranged on the two arc-shaped sliding rods (103); The dual-chamber airbag (200) is an elliptical annular structure, comprising a lower airbag (201) and an upper airbag (202) symmetrically arranged in an upper and lower direction, the lower airbag (201) and the upper airbag (202) are connected at left and right sides by a first connecting belt (203), and the front and rear ends are connected at the vertices of the short semi-axis by a second connecting belt (204), and the front and rear second connecting belts (204) are respectively detachably mounted on the limit blocks (107) having the cutouts (108) on the front and rear inner side walls of the base body (101); and The flip cover (300) comprises an elliptical cover body (301) and a storage top cover (302) arranged at the top center position of the cover body (301); the cover body (301) is an elliptical structure, and its flip buckle is arranged on the top of the base body (101), and its bottom is sealed and connected to the upper air bag (202); the filter screen (500) is detachably installed in the inner cavity of the storage top cover (302), and its top is connected to the negative pressure pipeline (303) and the oxygen supply pipeline (305).

2. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: The base body (101) and the annular boss (102) at the lower end of its outer peripheral wall are an integrally formed structure, and are made of a deformable silicone material.

3. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: Both ends of the two groups of asymmetrically arranged arc-shaped sliding rods (103) are detachably mounted on the fixing column (104) on the top of the annular boss (102) by means of screw clamps, wherein: The two arc-shaped sliding rods (103) are both made of non-deformable stainless steel or aluminum alloy. The sliding sleeve on one of the arc-shaped sliding rods (103) is provided with the first binding strap (105), and the sliding sleeve on the other arc-shaped sliding rod (103) is provided with the second binding strap (106).

4. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: A first hinge block (109) is provided at the apex position of the short semi-axis of the rear end outer wall of the base body (101), and a first clamping block (110) is provided at the apex position of the short semi-axis of the front end outer wall; and The inner side walls on the left and right sides of the base body (101) are provided with arc-shaped grooves (111) along their circumference for accommodating the shaping control strip (600), and the arc-shaped groove (111) is provided with a plurality of slots (112) for snap-connecting the end clamps (601) of the shaping control strip (600) at equal intervals along its length direction.

5. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: The lower airbag (201), the upper airbag (202), the first connecting belt (203) and the second connecting belt (204) are an integrally formed structure and are made of rubber material; The first connecting belt (203) is gap-connected with the second connecting belts (204) on both sides, and the total arc length of the left and right second connecting belts (204) accounts for 7 / 10-9 / 10 of the circumference of the dual-chamber airbag (200).

6. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: When the double-chamber airbag (200) is in an inflated state, the lower airbag (201) at the bottom thereof is sealed against the patient's skin surface, and the upper airbag (202) at the top thereof is sealed against the lower surface of the cover plate body (301); The outer side wall of the first connecting belt (203) at the rear end is provided with an inflation joint (205), the inflation joint (205) passes through the through hole on the rear side wall of the base body (101) and extends to the outside, and an inflation valve (206) is provided on the outer end of the inflation joint (205).

7. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: The cover plate body (301) and the storage top cover (302) are an integrally formed structure and are made of plastic material; Wherein, a second hinge block (308) hingedly connected to the first hinge block (109) is provided at the apex position of the short semi-axis of the rear end outer wall of the cover plate body (301), and a second clamping block (309) snap-fitted to the first clamping block (110) is provided at the apex position of the short semi-axis of the front end outer wall; The storage top cover (302) is a circular cylindrical structure with an opening at the bottom, a transparent observation window (307) is arranged at the top, and a plurality of hooks (310) for limiting the installation of the filter screen (500) are arranged at intervals on the inner periphery of the bottom.

8. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 7, characterized in that: The proximal end of the negative pressure pipeline (303) is detachably mounted on the storage top cover (302), and an adjustable negative pressure control valve (304) is provided on the proximal end, and the distal end is externally connected to a vacuum pump; and The proximal end of the oxygen supply pipeline (305) is detachably mounted on the storage top cover (302), and an adjustable oxygen supply control valve (306) is arranged on the proximal end, and the distal end is externally connected to an oxygen tank.

9. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: The filter screen (500) is made of a highly breathable non-woven fabric material, and a humidity indicator strip (501) is provided on the top of the filter screen corresponding to the position of the transparent observation window (307) on the storage top cover (302).

10. The multifunctional auxiliary device for wound oxygen therapy re-adhesive dressing according to claim 1, characterized in that: It also includes a molding control strip (600) movably disposed between the left and right sides of the dual-chamber airbag (200) and the left and right inner side walls of the universal base (100); The shaping control strip (600) can be received in the arc-shaped grooves (111) of the left and right inner side walls of the base body (101), and is made of a shaped low-carbon steel, copper, aluminum or plastic material; The two ends of the shaping control strip (600) are respectively provided with clamping heads (601) which can be detachably connected to a plurality of clamping slots (112) in the arc-shaped groove (111), and a plurality of square holes (602) arranged at intervals are opened on the strip along the length direction.

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