CN114469518B

CN114469518B - Dressing for negative-voltage electric field coupling strong-oxygen therapy

Info

Publication number: CN114469518B
Application number: CN202210102509.1A
Authority: CN
Inventors: 罗文典; 史丙华; 莫林涛
Original assignee: Changsha Hairun Biological Technology Co ltd
Current assignee: Changsha Hairun Biological Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2023-02-21
Anticipated expiration: 2042-01-27
Also published as: CN114469518A

Abstract

The invention discloses a dressing for negative-pressure electric field coupling strong oxygen therapy, which comprises a first film layer covering a wound surface and a wound edge, wherein the first film layer is communicated with a negative-pressure device and a strong oxygen device; the edge of the first film layer is provided with a flexible first closed ring obtained by folding towards the center of the first film layer, and the suspension edge of the first closed ring is attached to the wound edge under high pressure and forms a sealed area together with the wound surface and the first film layer; the wound surface electric field device comprises a wound edge, a wound surface and a power supply, and is characterized by further comprising an electric field device for applying an electric field to the wound surface, wherein the electric field device comprises an anode arranged at the wound edge, a cathode arranged at the center of the wound surface and a power supply for supplying power to the anode and the cathode. The dressing for negative-pressure electric field coupling strong oxygen therapy has the advantages of simple structure, reasonable combination of negative pressure, electric field and strong oxygen, reduction of therapy time and the like.

Description

Dressing for negative-voltage electric field coupling strong-oxygen therapy

Technical Field

The invention relates to the technical field of dressing structures, in particular to a dressing for negative-pressure electric field coupling strong oxygen therapy.

Background

The negative pressure dressing is a common dressing for wound treatment, and has the main functions of pumping tissue fluid generated by the wound and providing a closed environment isolated from the outside for the wound, so that the infection of foreign bacteria is prevented, and the wound is better and faster healed. Clinical medicine shows that oxygen has a good promoting effect on wound healing, and damaged tissues can accelerate healing under the action of oxygen. The stimulation of the electric field also has the effect of rapid healing of the wound surface. However, when the negative pressure is combined with strong oxygen, air pressure conflict can occur, the dressing is attached to the wound surface during the negative pressure, but the dressing can reversely move to be separated from the wound surface during the high pressure, the negative pressure and the strong oxygen are difficult to combine, most of the existing dressing equipment only has one treatment function, and patients can only respectively carry out various treatment schemes through different equipment during treatment, so that the operation is complex, and the treatment time is prolonged.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a dressing for negative-pressure electric field coupling strong oxygen therapy, which has a simple structure, reasonably combines negative pressure, an electric field and high-pressure oxygen and reduces the treatment time.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a dressing for negative-pressure electric field coupling strong oxygen therapy comprises a first film layer covering a wound surface and a wound edge, wherein the first film layer is communicated with negative-pressure equipment and strong oxygen equipment; the edge of the first film layer is provided with a flexible first closed ring obtained by folding towards the center of the first film layer, and the suspended edge of the first closed ring is attached to the wound edge under high pressure and forms a sealed area together with the wound surface and the first film layer; the wound surface electric field device comprises an anode arranged at a wound edge, a cathode arranged at the center of the wound surface and a power supply for supplying power to the anode and the cathode.

As a further improvement of the technical scheme:

the dressing for negative-pressure electric field coupling strong oxygen therapy further comprises a controller, the controller is in communication connection with the electric field device, the negative-pressure equipment and the strong oxygen equipment, the controller acquires current signals obtained by conducting wound surface seepage after the electric field device applies an electric field, and controls starting and stopping of the negative-pressure equipment and the strong oxygen equipment according to the acquired current signals.

The controller comprises a comparison module, and the comparison module compares the received current signal with a current preset value preset in the controller; when the current is larger than a first current preset value, the comparison module sends a starting instruction to the negative pressure equipment and sends a stopping instruction to the strong oxygen equipment, the negative pressure equipment outputs negative pressure after receiving the starting instruction, and the strong oxygen equipment stops outputting high-pressure oxygen after receiving the stopping instruction; when the current is smaller than a second current preset value, the comparison module sends a starting instruction to the strong oxygen equipment and sends a stopping instruction to the negative pressure equipment, the strong oxygen equipment outputs high-pressure oxygen after receiving the starting instruction, and the negative pressure equipment stops outputting negative pressure after receiving the stopping instruction; the first current preset value is not less than the second current preset value.

And a power supply, a controller, negative pressure equipment and strong oxygen equipment of the electric field device are integrated into an integrated control terminal.

The junction of the first closed ring and the first film layer forms an acute included angle.

The cross section of the first closed ring is of an arc-shaped structure protruding towards one side far away from the wound surface.

The edge of the first film layer is also provided with a flexible second closed ring which is obtained by folding outwards, the suspension edge of the second closed ring is attached to the wound edge under the negative pressure in the first film layer, and the suspension edge, the wound surface and the first film layer jointly enclose a sealed area.

The anode of the electric field device is arranged in an annular area covered by the first closed ring and the second closed ring.

The junction of the second closed ring and the first film layer forms an obtuse included angle.

The cross section of the second closed ring is of an arc-shaped structure protruding towards one side far away from the wound surface.

The dressing for negative-voltage electric field coupling strong oxygen therapy also comprises a second film layer, wherein the second film layer completely covers the first film layer, and the edge of the second film layer is connected to the skin on the periphery of the wound surface.

The second film layer is provided with a negative pressure port, a strong oxygen port and a lead hole, the first film layer is provided with a through hole at the position corresponding to the negative pressure port, the strong oxygen port and the lead hole, and a negative pressure pipe of the negative pressure equipment and a strong oxygen pipe of the strong oxygen equipment are respectively communicated to the through hole of the first film layer through the negative pressure port and the strong oxygen port; the power supply lead of the electric field device is connected with the anode and the cathode through the lead hole and the through hole of the first film layer, and the sealing block is arranged at the position, corresponding to the through hole, of the lead hole of the first film layer.

And the negative pressure pipe of the negative pressure equipment and the strong oxygen pipe of the strong oxygen equipment are both provided with one-way valves.

Compared with the prior art, the invention has the advantages that:

the dressing for negative-pressure electric field coupling strong oxygen therapy comprises a first film layer covering a wound surface and a wound edge, wherein the first film layer provides a closed environment for the wound surface and prevents external bacterial infection. The wound healing electric field generator is characterized by further comprising an electric field device for applying an electric field to a wound, wherein the electric field device comprises an anode arranged at a wound edge, a cathode arranged at the center of the wound and a power supply for supplying power to the anode and the cathode, and the power supply can apply the electric field to the wound after supplying power to the anode and the cathode, so that the wound healing is stimulated, and the treatment speed of the wound is accelerated.

The first film layer is communicated with the negative pressure device and the strong oxygen device, so that the negative pressure treatment, the high pressure oxygen treatment and the electric field treatment can be carried out in a closed environment. In order to avoid repeated bulging and final falling of the dressing due to pressure conflict between negative pressure and strong oxygen, a flexible first sealing ring which is folded towards the center of a first film layer is arranged on the edge of the first film layer, when negative pressure treatment is carried out, redundant seepage is absorbed by a negative pressure device, and the dressing is attached to a wound surface under the negative pressure; when the high-pressure oxygen therapy is carried out, the high-pressure oxygen introduced into the dressing by the high-oxygen equipment can increase the internal pressure of the dressing, the flexible first sealing ring can be attached to a wound edge under the action of the pressure, the greater the pressure is, the tighter the attachment degree is, so that the dressing cannot be separated from the wound surface, and a sealed area is formed in the range covered by the first film layer. The structure eliminates repeated dragging of the dressing joint when negative pressure and high-pressure oxygen are recycled, and the dressing can be tightly jointed with a human body under two states, so that negative pressure equipment, strong oxygen equipment and an electric field device can supply the same dressing, a patient can use multiple treatment schemes simultaneously or respectively under the condition of not replacing the dressing, and the treatment cost and the treatment time are saved.

Drawings

FIG. 1 is a schematic diagram of the structure of a dressing for negative-voltage electric-field coupling strong-oxygen therapy in example 1;

fig. 2 is a schematic structural diagram of the dressing for negative-voltage electric field coupling strong oxygen therapy in example 2.

Illustration of the drawings: 1. a first membrane layer; 11. a first closed ring; 12. a second closed loop; 2. a closed area; 3. an electric field device; 31. a positive electrode; 32. a negative electrode; 4. a second film layer; 41. a negative pressure port; 42. strong oxygen mouth.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

Example 1:

as shown in fig. 1, the dressing for negative-voltage electric field coupling strong-oxygen therapy of the present embodiment includes a first film layer 1 covering a wound surface and a wound edge, and the first film layer 1 provides a closed environment for the wound surface to prevent external bacterial infection. The wound dressing also comprises an electric field device 3 for applying an electric field to a wound surface, wherein the electric field device 3 comprises a positive electrode 31 arranged at the wound edge, a negative electrode 32 arranged at the center of the wound surface and a power supply for supplying power to the positive electrode 31 and the negative electrode 32. After the power supply supplies power to the positive electrode 31 and the negative electrode 32, an electric field can be applied to the wound surface, so that the wound surface is stimulated to heal, and the treatment speed of the wound surface is accelerated.

The first film layer 1 is communicated with a negative pressure device and a strong oxygen device, so that negative pressure treatment, high pressure oxygen treatment and electric field treatment can be carried out in a closed environment. In order to avoid repeated bulging and final falling of the dressing due to pressure conflict between negative pressure and strong oxygen, a flexible first sealing ring 11 which is folded towards the center of the first film layer 1 is arranged on the edge of the first film layer 1, when negative pressure treatment is carried out, redundant seepage is absorbed by a negative pressure device, and the dressing is attached to the wound surface under the negative pressure; when the hyperbaric oxygen treatment is carried out, hyperbaric oxygen introduced into the dressing by the hyperbaric oxygen equipment can increase the internal pressure of the dressing, the flexible first sealing ring 11 can be attached to a wound edge under the action of the pressure, and the attaching degree is tighter as the pressure is higher, so that the dressing cannot be separated from the wound surface, and the coverage of the first film layer 1 forms the sealed area 2. The structure eliminates repeated dragging of the dressing joint when negative pressure and high-pressure oxygen are recycled, and the dressing can be tightly jointed with a human body under two states, so that the negative pressure equipment, the strong oxygen equipment and the electric field device 3 can supply the same dressing, a patient can use multiple treatment schemes simultaneously or respectively under the condition of not replacing the dressing, and the treatment cost and the treatment time are saved. In the present embodiment, the positive electrode 31 is disposed inside the first closed ring 11.

In this embodiment, the dressing further includes a controller, the controller is in communication connection with the electric field device 3, the negative pressure device and the strong oxygen device, the controller obtains a current signal obtained by conducting wound exudate after the electric field device 3 applies an electric field, and controls starting and stopping of the negative pressure device and the strong oxygen device according to the obtained current signal.

The wound surface generates seepage in the healing process, the seepage is conducted when an electric field is applied to the wound surface, and when the wound surface has more seepage, the impedance is reduced, the current is increased, and when the wound surface has less seepage, the impedance is increased, and the current is reduced. Therefore, the electric field therapy, the negative pressure therapy and the strong oxygen therapy are reasonably combined based on the principle, the quantity of the seepage is grasped in real time by acquiring the current signal conducted by the seepage, and the starting and stopping of the negative pressure device and the strong oxygen device are correspondingly controlled according to the current signal. Starting negative pressure equipment under the condition that the current is increased due to excessive seepage, closing strong oxygen equipment, absorbing redundant seepage, and reducing seepage so as to reduce a current signal; and stopping negative pressure output under the condition of current reduction caused by less seepage, starting the strong oxygen equipment to enable the wound surface to be in a high-pressure oxygen environment, and ensuring that the seepage of the wound surface is maintained in a reasonable state. The setting mode enables the synergistic effect of the negative pressure treatment, the strong oxygen treatment and the electric field treatment, and has the advantages of the three, and the three are not the combination of forced hardness, but can be automatically adjusted according to the state of the wound surface in real time through reasonable setting, the wound surface is automatically kept in the most suitable healing state, and the manual operation is not needed, so that the operation experience of an operator is not relied on completely.

In this embodiment, the controller may be a common control device on the market, and may be configured with independent work control in addition to the above-described joint control manner, so that the above-described three treatment protocols may act independently.

In this embodiment, the controller includes a comparison module, which compares the received current signal with a preset current value preset in the controller; when the current is larger than a first current preset value, the comparison module sends a starting instruction to the negative pressure equipment and sends a stopping instruction to the strong oxygen equipment, the negative pressure equipment outputs negative pressure after receiving the starting instruction, and the strong oxygen equipment stops outputting high-pressure oxygen after receiving the stopping instruction; when the current is smaller than a second current preset value, the comparison module sends a starting instruction to the strong oxygen equipment and sends a stopping instruction to the negative pressure equipment, the strong oxygen equipment outputs high-pressure oxygen after receiving the starting instruction, and the negative pressure equipment stops outputting negative pressure after receiving the stopping instruction; the first current preset value is not less than the second current preset value.

In the initial working state, the wound surface is dry, and the strong oxygen equipment and the electric field device 3 apply treatment to the wound surface together. Along with time, when the surface of a wound sepage becomes more, the impedance diminishes, the current increases, and when the current increased to first current default, the controller obtained this numerical value, opened negative pressure equipment through control, stopped strong oxygen equipment to reach the purpose of absorbing the sepage. As the exudate absorbs, the impedance increases and the current decreases. When the current is reduced to a second current preset value, the controller acquires the value and stops the negative pressure output through control, so that the strong oxygen therapy is applied to the dry wound.

In this embodiment, the power supply, the controller, the negative pressure device and the strong oxygen device of the electric field device 3 are integrated into an integrated control terminal, which is convenient for an operator to move and regulate.

In this embodiment, the intersection between the first sealing ring 11 and the first film layer 1 forms an acute included angle. When the high-pressure oxygen enters the first film layer 1, the surface of the first closed ring 11 facing the inside of the first film layer 1, i.e. the compression surface, is limited by the connection interface, and can be always attached to the skin, but cannot be turned to the outside of the first film layer 1 under the compression condition, so that the dressing is separated.

In this embodiment, the cross-section of first closed ring 11 is to keeping away from the bellied arc structure in surface of a wound one side, makes the suspension edge of first closed ring 11 slightly buckle to skin one side inside, and this structure can form the actuation effect of similar annular sucking disc when receiving pressure laminating skin, firmly catches the skin of wound reason towards the indent district of skin one side, and because the marginal inside buckle, so can not lead to the absorption failure because the edge upwarps, guarantee the leakproofness of dressing.

In this embodiment, the edge of the first film layer 1 is further provided with a flexible second closed ring 12 which is folded outwards, and the suspended edge of the second closed ring 12 is attached to the wound edge under the negative pressure inside the first film layer 1 and forms a sealed area 2 together with the wound surface and the first film layer 1. Similar to the principle of the first sealing ring 11, when negative pressure treatment is performed, redundant seepage is absorbed by negative pressure equipment, the internal pressure of the dressing is reduced, the dressing is attached to the wound surface under the negative pressure, meanwhile, the flexible second sealing ring 12 is attached to the wound edge under the action of the pressure outside the dressing, the greater the internal negative pressure is, the tighter the attachment degree is, so that the dressing is prevented from being separated from the wound surface, and the range covered by the first film layer 1 forms the sealed area 2.

In this embodiment, the intersection between the second closed ring 12 and the first film layer 1 forms an obtuse included angle, so as to ensure that the stressed surface of the second closed ring 12 is not sucked to the inner side of the first film layer 1 due to the internal negative pressure under the limitation of the included angle.

In this embodiment, the cross-section of second closed ring 12 is to keeping away from the bellied arc structure of surface of a wound one side, makes the suspension edge of second closed ring 12 slightly buckle to skin one side inside, and this structure can form the actuation effect of similar annular sucking disc when receiving pressure laminating skin, and the indent district towards skin one side firmly catches the skin of wound reason, and because the marginal inside buckle, so can not lead to the absorption failure because the edge upwarps, guarantee the leakproofness of dressing.

In this embodiment, the dressing still includes second rete 4, and second rete 4 covers first rete 1 completely, and the edge is connected to on the skin of wound surface periphery, and second rete 4 has played global fixed effect, and what messenger's whole piece dressing can be laminated is compacter, avoids oxygenating too much in the strong oxygen treatment process simultaneously to lead to the dressing thoroughly to warp.

In this embodiment, the second film layer 4 is provided with a negative pressure port 41, a strong oxygen port 42 and a wire hole, the first film layer 1 is provided with a through hole at a position corresponding to the negative pressure port 41, the strong oxygen port 42 and the wire hole, and a negative pressure tube of the negative pressure equipment and a strong oxygen tube of the strong oxygen equipment are respectively communicated to the through hole of the first film layer 1 through the negative pressure port 41 and the strong oxygen port 42; the power supply lead of the electric field device 3 is connected with the anode 31 and the cathode 32 through the lead hole and the through hole of the first film layer 1, and the first film layer 1 is provided with a sealing block at the position of the lead hole corresponding to the through hole. The sealing block can be obtained by sealing various materials with sealing effect after being melted and then cooling and fixing the materials at the through hole, and can also be a sealing ring structure allowing a lead to pass through.

In this embodiment, the negative pressure pipe of the negative pressure device and the oxygen enhancing pipe of the oxygen enhancing device are both provided with a check valve. The one-way valve of the negative pressure pipe points to the negative pressure equipment, and the one-way valve of the strong oxygen pipe points to the first film layer 1, so that pollution caused by reverse flow is avoided. And a valve body of an independent switch can be additionally arranged on each tube, so that the tubes cannot be communicated in the treatment process.

Example 2:

this embodiment is substantially the same as embodiment 1, except that in this embodiment, as shown in fig. 2, the positive electrode 31 of the electric field device 3 is disposed in the annular region covered by the first closed ring 11 and the second closed ring 12, and the first closed ring 11 and the second closed ring 12 may be made of a flexible material such as rubber. This kind of structure of setting up has been equivalent to having set up the shutoff in the inboard of anodal 31, avoids the more anodal 31 and the direct conduction through the sepage that leads to of sepage, ensures that the electric field of anodal 31 and negative pole 32 can apply on the surface of a wound.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. It should be apparent to those skilled in the art that modifications and variations can be made without departing from the technical spirit of the present invention.

Claims

1. The utility model provides a dressing of strong oxygen treatment of negative voltage electric field coupling which characterized in that: the wound protection device comprises a first film layer (1) covering a wound surface and a wound edge, wherein the first film layer (1) is communicated with negative pressure equipment and strong oxygen equipment; the edge of the first film layer (1) is provided with a flexible first closed ring (11) which is folded towards the center of the first film layer (1), the suspension edge of the first closed ring (11) is attached to the wound edge under high pressure, and the suspension edge, the wound surface and the first film layer (1) jointly enclose a closed area (2); the wound healing device comprises an electric field device (3) used for applying an electric field to a wound surface, the electric field device (3) comprises an anode (31) arranged at a wound edge, a cathode (32) arranged at the center of the wound surface, a power supply used for supplying power to the anode (31) and the cathode (32), and a controller, the controller is in communication connection with the electric field device (3), negative pressure equipment and strong oxygen equipment, the controller obtains a current signal obtained by conducting wound surface seepage after the electric field device (3) applies the electric field, and controls the start and stop of the negative pressure equipment and the strong oxygen equipment according to the obtained current signal, the controller comprises a comparison module, and the comparison module compares the received current signal with a current preset value preset in the controller; when the current is larger than a first current preset value, the comparison module sends a starting instruction to the negative pressure equipment and sends a stopping instruction to the strong oxygen equipment, the negative pressure equipment outputs negative pressure after receiving the starting instruction, and the strong oxygen equipment stops outputting high-pressure oxygen after receiving the stopping instruction; when the current is smaller than a second current preset value, the comparison module sends a starting instruction to the strong oxygen equipment and sends a stopping instruction to the negative pressure equipment, the strong oxygen equipment outputs high-pressure oxygen after receiving the starting instruction, and the negative pressure equipment stops outputting negative pressure after receiving the stopping instruction; the first current preset value is not less than the second current preset value.

2. The dressing of claim 1, wherein the negative-voltage electric field coupling strong oxygen therapy dressing comprises: and a power supply, a controller, negative pressure equipment and strong oxygen equipment of the electric field device (3) are integrated into an integrated control terminal.

3. The dressing for negative-voltage electric field coupling hyperoxia treatment according to claim 1, wherein: the junction of the first closed ring (11) and the first film layer (1) forms an acute included angle.

4. The dressing for negative-voltage electric field coupling hyperoxia treatment according to claim 1, wherein: the cross section of the first closed ring (11) is of an arc-shaped structure protruding towards one side far away from the wound surface.

5. The dressing of claim 1, wherein the negative-voltage electric field coupling strong oxygen therapy dressing comprises: the edge of first rete (1) still is equipped with flexible second closed ring (12) that outside book obtained, the suspension edge of second closed ring (12) is in the laminating wound edge under first rete (1) inside negative pressure to enclose synthetic airtight district (2) jointly with the surface of a wound and first rete (1).

6. The dressing of claim 5, wherein the negative-voltage electric field coupling strong oxygen therapy is as follows: the anode (31) of the electric field device (3) is arranged in an annular area covered by the first closed ring (11) and the second closed ring (12).

7. The dressing for negative-voltage electric field coupling hyperoxia treatment according to claim 5, wherein: the junction of the second closed ring (12) and the first film layer (1) forms an obtuse included angle.

8. The dressing for negative-voltage electric field coupling hyperoxia treatment according to claim 5, wherein: the section of the second closed ring (12) is of an arc structure protruding towards one side far away from the wound surface.

9. The negative-voltage electric-field-coupled hyperoxia therapeutic dressing according to any one of claims 1 to 8, wherein: the wound dressing further comprises a second film layer (4), wherein the second film layer (4) completely covers the first film layer (1), and the edge of the second film layer is connected to the skin on the periphery of the wound surface.

10. The negative-pressure electric field coupling strong oxygen therapy dressing of claim 9, wherein: the second film layer (4) is provided with a negative pressure port (41), a strong oxygen port (42) and a lead hole, the first film layer (1) is provided with through holes at positions corresponding to the negative pressure port (41), the strong oxygen port (42) and the lead hole, and a negative pressure pipe of negative pressure equipment and a strong oxygen pipe of strong oxygen equipment are respectively communicated to the through holes of the first film layer (1) through the negative pressure port (41) and the strong oxygen port (42); the power supply lead of the electric field device (3) is connected with the anode (31) and the cathode (32) through the lead hole and the through hole of the first film layer (1), and the first film layer (1) is provided with a sealing block at the position of the lead hole corresponding to the through hole.

11. The dressing for negative-voltage electric field coupling hyperoxia treatment according to claim 10, wherein: and the negative pressure pipe of the negative pressure equipment and the strong oxygen pipe of the strong oxygen equipment are both provided with one-way valves.