Portable negative pressure drainage and hyperthermia therapy device

Abstract

The present invention relates to the fields of negative pressure drainage and electromagnetic wave therapy, and specifically to a portable negative pressure drainage and thermotherapy device, comprising a plurality of light panels hinged together end to end, with support plates hinged to the light panels on both sides. A TDP lamp is disposed within the light panel, and the TDP lamp is electrically connected to a battery mounted within the support plate. A mounting plate is fixed to the outside of the support plate, and a placement cavity for a drainage bag is defined within the mounting plate. A micro-negative pressure pump is mounted on the mounting plate, and a negative pressure tube is fixed to the mounting plate. One end of the negative pressure tube is connected to the micro-negative pressure pump, and the other end of the negative pressure tube is connected to the drainage bag. The present invention cleverly integrates the thermotherapy function of the TDP lamp with the negative pressure drainage function into the same device, providing dual assistance for wound treatment. The device also employs a deformable structure that can be unfolded into a plate-like shape for easy portability when not in use, resolving the problem of prior art devices being inconvenient to use during transport.

Description

Technical Field

[0001] The present invention relates to the fields of negative pressure drainage and electromagnetic wave therapy, and in particular to a portable negative pressure drainage and thermotherapy device. Background Art

[0002] In the field of clinical wound treatment, negative pressure drainage and TDP therapy lamp irradiation are two common and effective treatment methods. Negative pressure drainage can promptly remove wound exudate, maintain a negative pressure environment within the wound, and create favorable conditions for the growth of granulation tissue. Negative pressure wound drainage generally involves: after wound cleaning and disinfection, the drainage tube is placed in the wound, covered with negative pressure sealing material, and finally secured with a transparent medical film. TDP therapy lamps, by emitting specific electromagnetic waves, accelerate local blood circulation and also significantly promote the growth of granulation tissue.

[0003] For deep wounds affecting the subcutaneous tissue, tendons and other parts, negative pressure drainage is usually required for 5-7 days to ensure that the exudate is drained out in time, while maintaining a negative pressure environment to continuously promote the healthy growth of granulation tissue. During the negative pressure drainage period, patients may need to be transferred between different areas such as examination rooms and treatment rooms. However, most of the negative pressure aspirators currently used in clinical practice are independent devices. Such devices are highly dependent on the hospital's central negative pressure system when in use. During the patient transfer process, the negative pressure drainage treatment has to be interrupted because it cannot be disconnected from the central negative pressure connection. For patients who are in the critical period of continuous treatment, this may affect the wound healing process and increase the risk of infection. At the same time, the TDP treatment lamp needs to be connected to a power source to work. During the transfer process, it is unable to provide continuous treatment to the patient due to power limitations, making it difficult to ensure the continuity of treatment.

[0004] The prior art discloses a wound care device (publication number CN103566460A), which combines negative pressure drainage with laser irradiation therapy. However, after in-depth research, it was found that the device still has obvious defects when used during transportation. On the one hand, it is composed of multiple independent components such as a drainage bag, a suction cup main unit, a drainage tube, etc. During the transportation process, medical staff need to carry multiple scattered components at the same time, which is extremely inconvenient and increases the difficulty of operation and the probability of error. On the other hand, the independent drainage bag is easy to be lost due to negligence during transportation, and is prone to shaking during movement, which may cause the drainage tube to fall off, leak, and other problems, seriously affecting the treatment effect and safety. Summary of the Invention

[0005] The present invention is intended to provide a portable negative pressure drainage and thermotherapy device to solve the problem that the prior art is inconvenient to use during transportation.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A portable negative pressure drainage and thermotherapy device includes multiple light panels hinged together at the ends, and the light panels on both sides are hinged with support plates. TDP lamps are arranged in the light panels, and the TDP lamps are electrically connected to batteries, which are installed in the support plates. A mounting plate is fixed to the outside of the support plates, and a placement cavity for a drainage bag is provided in the mounting plate. A micro negative pressure pump is installed on the mounting plate, and a negative pressure tube is fixed on the mounting plate. One end of the negative pressure tube is connected to the micro negative pressure pump, and the other end of the negative pressure tube is used to connect to the drainage bag.

[0008] The principles of this solution are:

[0009] When not in use, the device can be unfolded into a plate-like structure with a small size and regular shape. It is extremely convenient whether it is placed in the hospital equipment storage area or in the portable medical bag of medical staff, greatly saving space and being easy to carry. When it is needed, medical staff can rotate multiple light panels around the hinge according to the location and shape of the wound, so that the entire device is transformed into an arched bracket and stably erected above the wound. Next, the drainage tube is properly fixed to the wound and then connected to the drainage bag. The drainage bag is then placed in the placement cavity of the mounting plate and ensured to be connected to the micro-negative pressure pump. After completing the above operations, turn on the micro-negative pressure pump to effectively drain the wound exudate, and at the same time turn on the TDP lamp to use the specific electromagnetic spectrum it emits to irradiate the wound for treatment.

[0010] The beneficial effects of this program are:

[0011] 1. The TDP lamp's thermotherapy function and negative pressure drainage function are cleverly integrated into the same device, providing dual assistance for wound treatment and accelerating the wound healing process. Previously, patients had to use separate devices for these two treatments, which was cumbersome and took up a lot of space. This device effectively solves this problem.

[0012] 2. The overall design of the device is compact and can be unfolded into a plate shape for easy storage and carrying. During transportation, medical staff can easily carry it or place it on a small medical cart, which greatly improves the convenience of transportation.

[0013] 3. The drainage bag is integrated into the mounting plate on the support plate, eliminating the problems of traditional independent drainage bags being easily lost or shaken during transportation. The placement cavity of the mounting plate provides a stable placement space for the drainage bag, making it less likely to shake during transportation, reducing the risk of drainage tube falling off and leakage.

[0014] Preferably, as an improvement, a step is provided at the top of the placement cavity, a negative pressure connector is vertically provided at the bottom of the step, and the top of the negative pressure connector passes through the surface of the step; the drainage bag includes a bag body and a hanging head fixed on the top of the bag body, a drainage tube is provided on the top of the hanging head, the drainage tube is connected to the bag body, a connecting tube is provided in the hanging head, one end of the connecting tube is connected to the bag body, and the other end of the connecting tube is connected to a hard connecting head, which is provided at the bottom of the hanging head, and the drainage bag is fixed in the placement cavity by hanging the hanging head on the step, and the connecting head can be inserted into the negative pressure connector when the hanging head is hung on the step.

[0015] Beneficial Effects: This design enables quick and automatic connection between the drainage bag and the negative pressure pump. During transport, medical staff simply hang the drainage bag on the steps, and the connector can be precisely inserted into the negative pressure connector to quickly establish a negative pressure drainage channel, eliminating the need for tedious manual connection operations and greatly improving work efficiency.

[0016] Preferably, as an improvement, the diameter of the free end of the connector is smaller than the diameter of the remaining portion, and a rubber sealing sleeve is fixed on the outer wall of the large diameter section of the connector.

[0017] Benefits: The smaller diameter of the free end facilitates insertion into the negative pressure connector, improving connection convenience. Once the connector is inserted into the negative pressure connector, the rubber sealing sleeve fits snugly against the connector's inner wall, creating a strong seal that effectively prevents air leaks, ensures stable negative pressure drainage, and enhances drainage effectiveness. Even if the device shakes during transport, the sealing sleeve maintains a seal, preventing air leaks from impacting treatment.

[0018] Preferably, as an improvement, the inlet of the negative pressure joint is sealed with a rubber sealing sheet, and a cross cut is opened on the rubber sealing sheet.

[0019] Beneficial Effects: When the connector is not inserted, the rubber seal effectively prevents outside air from entering the negative pressure connector, maintaining the tightness of the negative pressure system. When the connector is inserted, the cross cutout is stretched open, allowing the connector to enter smoothly. After the connector is inserted, the rubber seal tightly wraps around the connector, further enhancing the sealing effect, preventing negative pressure leakage, and ensuring the normal operation of the negative pressure drainage system. Especially during transportation, it can effectively cope with various complex environments and ensure that treatment is not affected.

[0020] Preferably, as an improvement, the TDP lamp includes a TDP radiation plate and a heater, and a heat insulation plate is provided between the TDP radiation plate and the heater.

[0021] Beneficial Effects: The thermal shield effectively prevents excessive heat generated by the heater from being transferred to the upper portion of the TDP coating, concentrating the heat radiation toward the wound. This improves the thermal efficiency of the TDP lamp and enhances its therapeutic effectiveness. Furthermore, the shield prevents heat from affecting other components of the device, extending its lifespan. During transport, the TDP lamp maintains stable operation, providing continuous, effective thermal therapy for wounds.

[0022] Preferably, as an improvement, a sensor for detecting the liquid level in the drainage bag is provided on the inner wall of the placement cavity, the sensor is electrically connected to the controller, and the controller is electrically connected to the alarm.

[0023] Beneficial Effects: The sensor monitors the fluid level in the drainage bag in real time. When the level reaches a set threshold, the sensor transmits a signal to the controller, which then triggers an alarm. During transport, medical staff no longer need to frequently check the drainage bag level. The alarm provides immediate notification and allows for timely bag replacement, preventing leakage caused by overflowing drainage bags, which could compromise treatment outcomes and environmental hygiene.

[0024] Preferably, as an improvement, a visual window is provided on the side wall of the placement cavity.

[0025] Beneficial Effects: Medical staff can observe the color, volume, and properties of the drainage fluid in the drainage bag at any time through the viewing window, without having to open the placement chamber to remove the drainage bag, which is convenient and quick. During transportation, abnormalities in the drainage fluid, such as abnormal color or odor, can be detected in a timely manner, providing a reference for subsequent treatment and ensuring the safety and effectiveness of wound treatment.

[0026] Preferably, as an improvement, scale lines are provided on the drainage bag.

[0027] Beneficial Effects: The scale allows medical staff to intuitively and accurately read the amount of drainage fluid and understand wound exudation. During transport, the scale can be used to record changes in drainage fluid, providing data support for doctors to judge wound healing status and help formulate more reasonable treatment plans.

[0028] Preferably, as an improvement, an annular negative pressure channel is provided in the step, a plurality of negative pressure holes are opened on the surface of the step, the negative pressure holes are connected to the negative pressure channel, and the negative pressure channel is connected to the negative pressure tube.

[0029] Beneficial effects: When the micro negative pressure pump is working, it not only generates negative pressure in the drainage bag for negative pressure drainage, but also generates negative pressure in the negative pressure channel, using the negative pressure to adsorb the hanging table and improve the placement stability of the drainage bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the expanded structure of Example 1 of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure when used in Example 1 of the present invention.

[0032] Figure 3 This is a schematic structural diagram of the light board in Example 1 of the present invention.

[0033] Figure 4 This is a schematic structural diagram of the drainage bag in Example 1 of the present invention.

[0034] Figure 5 This is a schematic structural diagram of the mounting plate in Example 1 of the present invention.

[0035] Figure 6 This is a schematic diagram of the inlet of the negative pressure joint in Example 2 of the present invention.

[0036] Figure 7 This is a schematic structural diagram of the mounting plate in Example 3 of the present invention.

[0037] Figure 8 This is a schematic structural diagram of the mounting plate in Example 4 of the present invention.

[0038] Figure 9 This is a schematic structural diagram of the mounting plate in Example 6 of the present invention. DETAILED DESCRIPTION

[0039] The following is further described in detail through specific implementation methods:

[0040] The figure marks in the drawings of the specification include: support plate 1, lamp board 2, heater 21, insulation board 22, TDP radiation board 23, mounting plate 3, placement cavity 31, step 32, negative pressure joint 33, rubber sealing sheet 34, cross cut 35, sensor 36, visual window 37, negative pressure hole 38, micro negative pressure pump 4, drainage bag 5, bag body 51, hanging head 52, drainage tube 53, connecting head 54.

[0041] Example 1:

[0042] like Figure 1 As shown, the portable negative pressure drainage and thermotherapy device comprises a plurality of light panels 2 hinged together at the head and tail, and the light panels 2 on both sides are hinged with support plates 1. The entire device can be unfolded when not in use. Figure 1 The flat plate shape shown is convenient for carrying and storage. When in use, the two sides are supported vertically by two support plates 1, and the middle light board 2 rotates around its various hinge points, so that the entire structure is deformed into Figure 2The arch shown can be placed above the wound. The hinge between the lamp panels 2 and the lamp panels 2, as well as the hinge between the lamp panel 2 and the support panel 1 refer to the hinge of the keyboard and screen in the laptop computer in the prior art, and adopt a precise mechanical structure design, such as a multi-link hinge or a torsion hinge, so that the lamp panel 2 can obtain better stability at all angles when forming the arch, and prevent the lamp panels 2 from shaking or changing angles at will. On this basis, damping materials such as damping grease, rubber pads, etc. can also be used at the hinge of the lamp panel 2. The damping material can fill the gap at the hinge, so that the lamp panel 2 is subjected to uniform resistance when rotating, making the lamp panel 2 more stable in the process of forming the arch, and after reaching the desired arch angle, it can rely on the effect of the damping material to better keep it fixed. This is the prior art and will not be further elaborated.

[0043] Each lamp panel 2 is equipped with a TDP lamp. Figure 3 As shown, the TDP lamp includes a TDP radiation plate 23, a heater 21 and a heat insulation plate 22. The TDP radiation plate 23 is glued and fixed to the bottom of the lamp board 2, the heat insulation plate 22 is fixed above the TDP radiation plate 23, and the heater 21 is fixed above the heat insulation plate 22. The heat insulation plate 22 adopts a mica heat insulation plate 22, and the heater 21 adopts a micro ceramic heating plate. The micro ceramic heating plate in each lamp board 2 is connected to the main line through an electric wire, and then connected to the battery through the main line. The battery adopts a rechargeable lithium battery. A battery installation cavity (not shown in the figure) is opened in the support plate 1 on the left side. The battery is installed in the installation cavity. A wiring groove is provided in the lamp board 2, and the wires are routed along the wiring groove.

[0044] Combine Figure 5 As shown, a mounting plate 3 is fixed to the outside of the right support plate 1, and a hole is opened inside the mounting plate 3 for placing Figure 4 The drainage bag 5 is shown with a placement cavity 31. A circle of steps 32 are connected to the top of the cavity 31. A negative pressure connector 33 is vertically embedded at the bottom of the steps 32, with the top of the connector 33 extending through the surface of the steps 32. A micro-negative pressure pump 4 is mounted on the mounting plate 3. The negative pressure connector 33 is connected to the negative pressure port of the micro-negative pressure pump 4 via a negative pressure tube. The micro-negative pressure pump 4 uses a micro-diaphragm pump, and the negative pressure tube is hidden within the mounting plate 3.

[0045] Combine Figure 4As shown, the drainage bag 5 includes a bag body 51 and a hard hanging head 52 glued and fixed to the top of the bag body 51. A drainage tube 53 is installed on the top of the hanging head 52. The drainage tube 53 adopts the drainage tube 53 used clinically in the prior art, and the drainage tube 53 is connected to the bag body 51. A connecting tube is provided in the hanging head 52, one end of the connecting tube is connected to the bag body 51, and the other end of the connecting tube is connected to a hard connector 54, which is fixed to the bottom of the hanging head 52. The diameter of the free end of the connector 54 is smaller than the diameter of the rest of the part. Except for the free end, a rubber sealing sleeve (not shown in the figure) is fixed on the outer wall of the rest of the connector 54 (i.e., the large diameter section). The drainage bag 5 is placed in the placement cavity 31 by hanging the hanging head 52 on the step 32. When the hanging head 52 is hung on the step 32, the connector 54 can be inserted into the negative pressure connector 33.

[0046] How to use the portable negative pressure drainage and hyperthermia therapy device:

[0047] This embodiment uses a burn wound as an example. After the wound is debrided, a drainage tube 53 is placed on the wound surface and covered with a negative pressure sealing material. The negative pressure sealing material and the drainage tube 53 are then tightly adhered to the patient's skin using a medical transparent film to secure the drainage tube 53. (Other wounds are secured using clinically appropriate methods. The dressing and securing material should be made of materials with good air permeability and transparency that will not shield electromagnetic waves.) The negative pressure sealing material is a polyurethane foam dressing, which has low absorption and blocking properties for specific electromagnetic waves and will not shield them. The medical transparent film has good transparency and will not shield specific electromagnetic waves.

[0048] After the drainage tube 53 is secured, the two support plates 1 are rotated vertically. Depending on the size of the wound, the light panel 2 between the two support plates 1 is rotated into an arched shape that covers the wound area, transforming the entire device into an arched support and resting above the wound. Next, the drainage bag 5 is placed into the placement cavity 31 on the mounting plate 3. When placing the drainage bag 5, ensure that the connector 54 on the drainage bag 5 is aligned with the negative pressure connector 33 on the step 32. Once the drainage bag 5 is placed into the placement cavity 31, the connector 54 is directly inserted into the negative pressure connector 33, thereby completing the quick and automatic connection between the drainage bag 5 and the micro negative pressure pump 4.

[0049] After the connection is completed, the micro-negative pressure pump 4 is started to continuously drain the wound under negative pressure through the drainage tube 53. If there is exudate, it is directly drained out under negative pressure. At the same time, the negative pressure environment at the wound is continuously maintained to promote the growth of granulation tissue. At the same time, the power of the TDP lamp is turned on, and the TDP lamp works to irradiate the wound. The TDP radiation plate 23 releases a specific electromagnetic spectrum with a wavelength range of 2-25μm through heating. These specific electromagnetic spectra can penetrate human skin, causing the molecules of the skin and subcutaneous tissue to vibrate, generating a thermal effect. This thermal effect can cause local blood vessels to dilate and blood flow to accelerate, thereby improving blood circulation in local tissues, bringing more oxygen and nutrients to tissue cells, promoting metabolism, and contributing to tissue repair and regeneration.

[0050] This embodiment integrates the TDP treatment lamp and negative pressure drainage, and configures the device to be able to unfold into a plate shape and deform into an arch shape. When not in use, it can be unfolded into a plate shape for easy storage and carrying, and bent into an arch shape when in use. Compared with traditional structures, it is easier to carry and convenient to use during transportation.

[0051] Example 2:

[0052] Combine Figure 6 As shown, the difference between this embodiment and embodiment 1 is that a circular rubber sealing sheet 34 is sealed at the entrance of the negative pressure joint 33, the edge of the rubber sealing sheet 34 is glued and fixed to the edge of the negative pressure joint 33, and a cross cut 35 is opened on the rubber sealing sheet 34. When not subject to external force, the cross cut 35 of the rubber sealing sheet 34 does not separate, and the rubber sealing sheet 34 can maintain a complete seal of the negative pressure joint 33, which can prevent some large particles of impurities from entering the negative pressure joint 33 and causing blockage. When the drainage bag 5 is placed in the placement cavity 31, the connector 54 is inserted into the negative pressure joint 33, forcing the rubber sealing sheet 34 to open into the negative pressure joint 33 from the cross cut 35. After opening, the rubber sealing sheet 34 tightly wraps the connector 54, further improving the sealing performance of the connection.

[0053] Example 3:

[0054] Combine Figure 7 As shown, this embodiment differs from Example 1 in that a sensor 36 for detecting the liquid level in the drainage bag 5 is mounted on the inner wall of the placement chamber 31. This sensor 36 is an infrared photoelectric sensor 36 , which is electrically connected to a controller, which is a PLC, and to an alarm, which is an audible and visual alarm. Sensor 36 monitors the liquid level in the drainage bag 5 in real time. When the liquid level in the drainage bag 5 reaches a set limit, sensor 36 sends a signal to the controller, which in turn activates the alarm, alerting medical personnel to replace the drainage bag 5.

[0055] Example 4:

[0056] Combine Figure 8 As shown, the difference between this embodiment and embodiment 1 is that a visual window 37 is installed on the side wall of the placement cavity 31, and the visual window 37 is provided to facilitate observation of the amount and properties of the drainage fluid in the drainage bag 5.

[0057] Example 5:

[0058] The difference between this embodiment and embodiment 1 is that scale lines are provided on the drainage bag 5, and the scale lines can intuitively know the amount of drainage fluid.

[0059] Example 6:

[0060] Combine Figure 9 As shown, this embodiment differs from Example 1 in that an annular negative pressure channel is provided within step 32. Several negative pressure holes 38 are formed on the surface of step 32, communicating with the negative pressure channel, which in turn is connected to a negative pressure tube. When the micro-negative pressure pump 4 is in operation, it not only generates negative pressure within the drainage bag 5 for negative pressure drainage, but also generates negative pressure within the negative pressure channel, utilizing this negative pressure to absorb the hanging platform and improve the placement stability of the drainage bag 5.

[0061] Example 7:

[0062] The difference between this embodiment and embodiment 6 is that a circle of negative pressure holes is also opened on the inner wall of the placement cavity 31, and the negative pressure holes are also connected to the negative pressure channel. When the micro negative pressure pump 4 is working, the negative pressure holes on the inner wall of the placement cavity 31 generate negative pressure to adsorb the side walls of the bag body 51 of the drainage bag 5 on the inner wall of the placement cavity 31, thereby expanding the drainage bag 5 to facilitate the flow of drainage fluid and further increase the stability of the drainage bag 5.

[0063] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. Portable negative pressure drainage and thermotherapy device, characterized by: The utility model comprises a plurality of light panels hinged together end to end, the light panels on both sides are hinged with support plates, a TDP lamp is arranged in the light panel, the TDP lamp is electrically connected to a battery, the battery is installed in the support plate, a mounting plate is fixed to the outside of the support plate, a placement cavity for placing a drainage bag is opened in the mounting plate, a micro negative pressure pump is installed on the mounting plate, a negative pressure tube is fixed on the mounting plate, one end of the negative pressure tube is connected to the micro negative pressure pump, and the other end of the negative pressure tube is used to connect to the drainage bag; a step is arranged on the top of the placement cavity, a negative pressure joint is vertically arranged at the bottom of the step, and the top of the negative pressure joint passes through the surface of the step; the drainage bag comprises a bag body and a hanging hook fixed on the top of the bag body The head is provided with a drainage tube on the top of the hanging head, which is connected to the bag body; a connecting tube is provided in the hanging head, one end of the connecting tube is connected to the bag body, and the other end of the connecting tube is connected to a hard connecting head, which is provided at the bottom of the hanging head; the drainage bag is fixed in the placement cavity by hanging the hanging head on the step, and the connecting head can be inserted into the negative pressure joint when the hanging head is hung on the step; the TDP lamp includes a TDP radiation plate and a heater, and an insulation board is provided between the TDP radiation plate and the heater; an annular negative pressure channel is provided in the step, and a plurality of negative pressure holes are opened on the surface of the step, the negative pressure holes are connected to the negative pressure channel, and the negative pressure channel is connected to the negative pressure tube.

2. The portable negative pressure drainage and thermotherapy device according to claim 1, characterized in that: The diameter of the free end of the connector is smaller than the diameter of the remaining part, and a rubber sealing sleeve is fixed on the outer wall of the large-diameter section of the connector.

3. The portable negative pressure drainage and thermotherapy device according to claim 1, characterized in that: The inlet of the negative pressure joint is sealed with a rubber sealing piece, and a cross cut is opened on the rubber sealing piece.

4. The portable negative pressure drainage and thermotherapy device according to claim 1, characterized in that: A sensor for detecting the liquid level in the drainage bag is arranged on the inner wall of the placement cavity. The sensor is electrically connected to a controller, and the controller is electrically connected to an alarm.

5. The portable negative pressure drainage and thermotherapy device according to claim 1, characterized in that: A visual window is provided on the side wall of the placement cavity.

6. The portable negative pressure drainage and thermotherapy device according to claim 1, characterized in that: There are scale lines on the drainage bag.

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