Portable negative pressure drainage and thermotherapy device

Abstract

The invention relates to the field of negative pressure drainage and electromagnetic wave treatment, in particular to a portable negative pressure drainage and thermotherapy device which comprises a plurality of lamp panels hinged together in an end-to-end mode, supporting plates are hinged to the lamp panels on the two sides, TDP lamps are arranged in the lamp panels and electrically connected with batteries, the batteries are installed in the supporting plates, and installation plates are fixed to the outer sides of the supporting plates. A containing cavity used for containing a drainage bag is formed in the installation plate, a miniature negative pressure pump is installed on the installation plate, a negative pressure pipe is fixed to the installation plate, one end of the negative pressure pipe is communicated with the miniature negative pressure pump, and the other end of the negative pressure pipe is used for being communicated with the drainage bag. The thermotherapy function and the negative pressure drainage function of the TDP lamp are ingeniously integrated into the same device, and dual assistance is provided for wound treatment; and a deformable structure is adopted, and can be unfolded into a plate shape to be convenient to carry when not in use, so that the problem of inconvenience in use in the transfer process in the prior art is solved.

Description

Technical Field

[0001] The invention relates to the field of negative pressure drainage and electromagnetic wave therapy, and in particular to a portable negative pressure drainage and thermal therapy 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 the negative pressure environment of the wound, and create favorable conditions for the growth of granulation tissue. The general operation method of wound negative pressure drainage is: after the wound is cleaned and disinfected, the drainage tube is placed on the wound, covered with negative pressure sealing material, and finally fixed with a medical transparent film. TDP therapy lamp accelerates local blood circulation by emitting a specific electromagnetic spectrum, which also has a significant promoting effect on the growth of granulation tissue.

[0003] For deep wounds that injure 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 negative pressure drainage, 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's transfer, 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, because the TDP treatment lamp needs to be connected to a power source to work, it cannot continue to provide treatment to patients during the transfer process 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 in use during transportation. On the one hand, it is composed of multiple independent components such as drainage bags, suction cup mainframes, drainage tubes, 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, independent drainage bags are easy to be lost due to negligence during transportation, and are 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 thermal therapy 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 scheme:

[0007] A portable negative pressure drainage and thermotherapy device comprises a plurality of light panels hinged together end to end, the light panels on both sides are hinged with support panels, a TDP lamp is arranged in the light panel, the TDP lamp is electrically connected with a battery, the battery is installed in the support panel, a mounting plate is fixed on the outside of the support panel, a placement cavity for placing a drainage bag is opened in the mounting panel, a micro negative pressure pump is installed on the mounting panel, a negative pressure tube is fixed on the mounting panel, one end of the negative pressure tube is connected with the micro negative pressure pump, and the other end of the negative pressure tube is used to connect with 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 loaded into the portable medical bag of medical staff, which greatly saves space and is 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 deformed into an arched bracket and stably erected above the wound. Then, the drainage tube is properly fixed to the wound and then connected to the drainage bag. Then put the drainage bag into the placement cavity of the mounting plate and ensure that it is 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 turn on the TDP lamp at the same time 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 thermotherapy function of the TDP lamp and the negative pressure drainage function are cleverly integrated into the same device, providing dual assistance for wound treatment and accelerating the wound healing process. In the past, patients had to use different devices to receive these two treatments, which was cumbersome to operate 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 the transportation process, 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, which avoids the problem 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 the drainage tube falling off and leaking.

[0014] Preferably, as an improvement, a step is provided at the top of the placement cavity, a negative pressure joint is vertically provided 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 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 with the bag body, a connecting tube is provided in the hanging head, one end of the connecting tube is connected with the bag body, and the other end of the connecting tube is connected with 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 joint when the hanging head is hung on the step.

[0015] Beneficial effects: This design realizes the rapid and automatic connection between the drainage bag and the negative pressure pump. During the transportation process, medical staff only need to hang the drainage bag on the steps, and the connector can be accurately inserted into the negative pressure connector to quickly establish a negative pressure drainage channel without the need for cumbersome manual connection operations, 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] Beneficial effects: The free end with a smaller diameter is easy to insert into the negative pressure connector, which improves the convenience of connection. After the connector is inserted into the negative pressure connector, the rubber sealing sleeve can fit tightly against the inner wall of the connector to form a good sealing effect, effectively prevent air leakage, ensure the pressure stability of negative pressure drainage, and improve the drainage effect. During transportation, even if the device shakes, the sealing sleeve can maintain a sealed state to avoid affecting treatment due to air leakage.

[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 sealing sheet can effectively prevent outside air from entering the negative pressure connector and maintain the sealing of the negative pressure system. When the connector is inserted, the cross cut can be opened to allow the connector to enter smoothly, and after the connector is inserted, the rubber sealing sheet can tightly wrap the connector to further enhance the sealing effect, prevent negative pressure leakage, and ensure the normal operation of negative pressure drainage, 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 comprises a TDP radiation plate and a heater, and a heat insulation plate is arranged between the TDP radiation plate and the heater.

[0021] Beneficial effects: The heat shield can effectively prevent the excessive heat generated by the heater from being transferred to the top of the TDP coating plate, so that the heat is mainly concentrated and radiated toward the wound, improving the thermal efficiency of the TDP lamp and enhancing the treatment effect. At the same time, the heat shield can prevent the heat from affecting other parts of the device, extend the service life of the device, and ensure the stable operation of the TDP lamp during transportation, providing continuous and effective warm treatment for the wound.

[0022] Preferably, as an improvement, 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 the controller, and the controller is electrically connected to the alarm.

[0023] Beneficial effects: The sensor can monitor the changes in the liquid level in the drainage bag in real time. When the liquid level reaches the set threshold, the sensor transmits a signal to the controller, which then triggers the alarm. During the transportation process, medical staff do not need to check the liquid level of the drainage bag frequently. They can know the liquid level in time through the alarm and replace the drainage bag in time to avoid leakage caused by overflowing drainage bags, which affects the treatment effect 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, amount and properties of the drainage fluid in the drainage bag at any time through the visual window, without opening the placement cavity to remove the drainage bag, which is convenient and quick. During the transportation process, abnormal conditions of the drainage fluid, such as abnormal color and odor, can be discovered in time, 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 line allows medical staff to intuitively and accurately read the amount of drainage fluid and understand the wound exudation. During the transportation process, the changes in drainage fluid can be recorded according to the scale line, providing data support for doctors to judge the wound healing status, which helps to formulate a more reasonable treatment plan.

[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 It is a schematic diagram of the structure after the embodiment 1 of the present invention is expanded.

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

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

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

[0034] Figure 5 This is a schematic diagram of the structure 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 diagram of the structure of the mounting plate in Example 3 of the present invention.

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

[0038] Fig. 9 This is a schematic diagram of the structure 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] Embodiment 1:

[0042] like Figure 1 As shown, the portable negative pressure drainage and thermal therapy device comprises a plurality of light panels 2 hinged together end to end, 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 good stability at all angles of the arch, and prevent the lamp panel 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, so that the lamp panel 2 is 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 set in the lamp board 2, and the wires are routed along the wiring groove.

[0044] Combination 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 placement cavity 31 of the drainage bag 5 shown in the figure has a circle of steps 32 connected to the top of the placement cavity 31, and a negative pressure connector 33 is vertically buried at the bottom of the step 32, and the top of the negative pressure connector 33 passes through the surface of the step 32. A micro negative pressure pump 4 is installed on the mounting plate 3, and the negative pressure connector 33 is connected to the negative pressure interface of the micro negative pressure pump 4 through a negative pressure tube. The micro negative pressure pump 4 adopts a micro diaphragm pump, and the negative pressure tube is hidden in the mounting plate 3.

[0045] Combination Figure 4As shown, the drainage bag 5 includes a bag body 51 and a hard hanging head 52 glued and fixed on the top of the bag body 51, and 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 arranged 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, and the connector 54 is fixed at the bottom of the hanging head 52. The diameter of the free end of the connector 54 is smaller than the diameter of the remaining part. Except for the free end, a rubber sealing sleeve (not shown in the figure) is fixed on the outer wall of the remaining part 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 joint 33.

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

[0047] This embodiment takes a burn wound as an example. After the wound is cleaned, the drainage tube 53 is placed on the wound surface, and the drainage tube 53 is covered with a negative pressure sealing material. Then, the negative pressure sealing material and the drainage tube 53 are tightly attached to the patient's skin as a whole with a medical transparent film to complete the fixation of the drainage tube 53 (other wounds use clinical corresponding methods to fix the drainage tube 53, and the dressing and fixing materials are selected from materials with good air permeability and good permeability, and will not shield electromagnetic waves). The negative pressure sealing material uses a polyurethane foam dressing, which has less absorption and blocking of specific electromagnetic waves and will not shield specific electromagnetic waves. The medical transparent film has good permeability and will not shield specific electromagnetic waves.

[0048] After the drainage tube 53 is fixed, the two support plates 1 are rotated to a vertical state. According to the size of the wound, the light board 2 between the two support plates 1 is rotated to an arch that can cover the wound area, so that the entire device is deformed into an arched bracket and placed above the wound. Then, the drainage bag 5 is placed in the placement cavity 31 on the mounting plate 3. When placing, pay attention to aligning the connector 54 on the drainage bag 5 with the negative pressure connector 33 on the step 32. When the drainage bag 5 is placed in the placement cavity 31, the connector 54 is directly inserted into the negative pressure connector 33, thereby completing the rapid 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, and the wound is continuously drained under negative pressure through the drainage tube 53. If there is exudate, it is directly drained out under negative pressure, and 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 and produce a thermal effect. This thermal effect can dilate local blood vessels and accelerate blood flow, thereby improving blood circulation in local tissues, bringing more oxygen and nutrients to tissue cells, promoting metabolism, and helping to repair and regenerate tissues.

[0050] This embodiment integrates the TDP treatment lamp and the negative pressure drainage, and configures the device to be a structure that can be unfolded into a plate shape and deformed 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] Embodiment 2:

[0052] Combination 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, and the rubber sealing sheet 34 is forced to open into the negative pressure joint 33 from the cross cut 35. The opened rubber sealing sheet 34 tightly wraps the connector 54, further improving the sealing performance of the connection.

[0053] Embodiment 3:

[0054] Combination Figure 7 As shown, the difference between this embodiment and embodiment 1 is that a sensor 36 for detecting the liquid level in the drainage bag 5 is installed on the inner wall of the placement cavity 31. The sensor 36 adopts an infrared photoelectric sensor 36. The sensor 36 is electrically connected to a controller. The controller adopts a plc. The controller is electrically connected to an alarm. The alarm adopts an audible and visual alarm. The sensor 36 can monitor the liquid level of the drainage bag 5 in real time. When the liquid level of the drainage bag 5 reaches the set limit position, the sensor 36 sends a signal to the controller, and the controller controls the alarm to sound an alarm, reminding the medical staff to replace the drainage bag 5.

[0055] Embodiment 4:

[0056] Combination 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] Embodiment 5:

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

[0059] Embodiment 6:

[0060] Combination Fig. 9 As shown, the difference between this embodiment and embodiment 1 is that an annular negative pressure channel is provided in the step 32, a plurality of negative pressure holes 38 are opened on the surface of the step 32, the negative pressure holes 38 are connected to the negative pressure channel, and the negative pressure channel is connected to the negative pressure tube. When the micro negative pressure pump 4 is working, it not only generates negative pressure in the drainage bag 5 for negative pressure drainage, but also generates negative pressure in the negative pressure channel, and uses the negative pressure to adsorb the hanging table, thereby improving the placement stability of the drainage bag 5.

[0061] Embodiment 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 inflow 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 known specific technical solutions and / or characteristics in the solution is 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 modifications and improvements can be made, which should also be regarded as the protection scope 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 specification can be used to interpret the content of the claims.

Claims

1. Portable negative pressure drainage and thermal therapy device, characterized in that: It includes multiple light panels hinged together end to end, the light panels on both sides are hinged with support plates, TDP lamps are arranged in the light panels, the TDP lamps are electrically connected to batteries, the batteries are installed in the support plates, a mounting plate is fixed to the outside of the support plates, 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.

2. The portable negative pressure drainage and thermal therapy device according to claim 1, characterized in that: A step is provided at the top of the placement cavity, a negative pressure joint is vertically provided 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 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 with the bag body, a connecting tube is provided in the hanging head, one end of the connecting tube is connected with the bag body, and the other end of the connecting tube is connected with 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 joint when the hanging head is hung on the step.

3. The portable negative pressure drainage and thermal therapy device according to claim 2, 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.

4. The portable negative pressure drainage and thermal therapy device according to claim 1, characterized in that: The entrance of the negative pressure joint is sealed with a rubber sealing sheet, on which a cross cut is opened.

5. The portable negative pressure drainage and thermal therapy device according to any one of claims 1 to 4, characterized in that: The TDP lamp comprises a TDP radiation plate and a heater, and a heat insulation plate is arranged between the TDP radiation plate and the heater.

6. The portable negative pressure drainage and thermal therapy 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 the controller, and the controller is electrically connected to the alarm.

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

8. The portable negative pressure drainage and thermal therapy device according to claim 1, characterized in that: The drainage bag is provided with graduation lines.

9. The portable negative pressure drainage and thermal therapy device according to claim 2, characterized in that: An annular negative pressure channel is arranged in the step, a plurality of negative pressure holes are opened on the surface of the step, the negative pressure holes are communicated with the negative pressure channel, and the negative pressure channel is connected with the negative pressure pipe.

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