Applying device

Abstract

The utility model relates to the field of medical temperature treatment instruments, in particular to an application device which comprises a deformable wearing mechanism, a cold source for refrigerating after being electrified, a heat source for heating after being electrified and a control mechanism with a timer function. The cold source and the heat source are arranged on the wearing mechanism and electrically connected with the control mechanism, and the control mechanism is at least used for controlling one of the cold source and the heat source to be powered on; the cold source and the heat source form intervals with the forearm of the human body through the wearing mechanism, and one part of the wearing mechanism serves as a heat transfer structure of the cold source and the heat source relative to the human body. The cold source is used for replacing an ice bag, the timer function of the control mechanism is used for replacing medical staff to monitor the working time of the cold source, the control mechanism can interrupt the work of the cold source, and the heat source is used for replacing a heated 50% magnesium sulfate sterile solution in the prior art, so that the working time of the medical staff for preparing the heat source is shortened, and the working efficiency is improved. And the working efficiency of medical staff is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical temperature treatment equipment, in particular to a patch application device. Background Art

[0002] Arteriovenous fistula is the main vascular access for hemodialysis treatment. During hemodialysis treatment, the patient's forearm puncture site is prone to fistula hematoma. The puncture site is located on the patient's forearm, such as at the wrist or other locations on the forearm. Fistula hematoma is a phenomenon in which blood flows out of the blood vessel and accumulates in the soft tissue due to rupture of the blood vessel wall due to various reasons, causing local swelling.

[0003] The traditional clinical method is to apply cold compresses around the hematoma within 24 hours after the occurrence of fistula hematoma to reduce bleeding and relieve swelling and pain. Medical staff may use intermittent cold compresses or cold compress objects, such as ice bags or cold compress patches, etc., which may not be suitable for all patients, especially for patients who need long-term cold compresses. It may cause excessive cold stimulation and discomfort. Medical staff need to observe the blood circulation and sensation of the skin at all times to avoid frostbite caused by prolonged use. The ice pack should be at least 3 cm away from the puncture site and should not exceed 30 minutes at a time. It should also be noted that the ice pack cannot directly contact the patient's skin and needs to be padded with a layer of gauze, a treatment towel or a towel or other items. Apply ice until the swelling subsides, and then apply hot compress. The traditional method is to pour an appropriate amount of 50% sterile magnesium sulfate solution into a clean container, and then place the container in another larger container filled with 60°C hot water to heat it in water. Add sterile gauze and soak it in 50% magnesium sulfate solution, then wring out the excess water so that the gauze does not drip. Apply wet compress to the subcutaneous hematoma and swelling of the arteriovenous fistula, with a range larger than 1 cm of the hematoma and swelling. Do this three times a day for half an hour each time, until the subcutaneous hematoma of the arteriovenous fistula disappears completely.

[0004] It can be learned from the above-mentioned traditional methods for treating fistula hematoma that in the traditional process of treating fistula hematoma, the operation time of medical staff is long and the efficiency is low; the specific reason is that the operation process of the ice bag as a cold source is relatively simple, but it takes a long time to observe and avoid side effects, so the work efficiency of medical staff is low; the 50% magnesium sulfate sterile solution as a heat source needs to be heated, and the heating source needs to control the temperature well, and the operation process is complicated, resulting in a long operation time and low work efficiency of medical staff.

[0005] Therefore, how to provide a patch therapy device to improve the work efficiency of medical staff in the process of treating internal fistula hematoma has become a technical problem to be solved. Utility Model Content

[0006] In order to solve the technical problem in the prior art of how to provide a patch treatment device to improve the work efficiency of medical staff in the process of treating internal fistula hematoma, the utility model provides a patch treatment device.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] According to one aspect of the utility model, there is provided a patch device for treating arteriovenous fistula hematoma, comprising a deformable wearing mechanism, a cold source for cooling after being powered on, a heat source for heating after being powered on, and a control mechanism with a timer function;

[0009] The wearing mechanism is used to wrap around and fit on the forearm of a human body;

[0010] The cold source and the heat source are respectively arranged on the wearing mechanism, and the cold source and the heat source are respectively electrically connected to the control mechanism, wherein the control mechanism is used to control at least one of the cold source and the heat source to be energized;

[0011] The cold source and the heat source are respectively spaced apart from the forearm of the human body through the wearing mechanism, and a part of the wearing mechanism serves as a heat transfer structure of the cold source and the heat source relative to the human body.

[0012] Furthermore, the wearing mechanism comprises a plurality of application blocks, and the plurality of application blocks are sequentially arranged in a long strip shape, wherein a hinge structure is formed between any two adjacent application blocks;

[0013] Each of the application blocks has a working surface for application, a through hole for setting the heat source, and a mounting surface for setting the heat source, wherein the working surface and the mounting surface are opposite to each other, and the through hole is located between the working surface and the mounting surface;

[0014] Any of the application blocks is made of metal material.

[0015] Furthermore, the heat source is specifically a heating wire;

[0016] The heating wire is serpentine and penetrates through the through holes on any one of the application blocks.

[0017] Furthermore, the cold source is specifically a semiconductor refrigeration sheet;

[0018] The semiconductor refrigeration sheet has a cooling surface and a heating surface, and the cooling surface is adhered to the mounting surface.

[0019] Furthermore, a heat sink is attached to the heating surface, and the heat sink is made of metal material.

[0020] Furthermore, the wearing mechanism also includes Velcro and / or elastic band;

[0021] The two ends of the Velcro and / or the elastic band are respectively connected to the multiple application blocks, and the connection points between the Velcro and / or the elastic band and the multiple application blocks are located at the two ends of the long strips of the multiple application blocks.

[0022] The wearing mechanism has a first state of being detached from a person's forearm and a second state of being fastened to a person's forearm, and the Velcro and / or the elastic band are used to control the wearing mechanism to switch between the first state and the second state.

[0023] Further, the control mechanism includes a controller, a first drive circuit and a second drive circuit;

[0024] The controller is electrically connected to the first drive circuit and the second drive circuit respectively;

[0025] The first drive circuit is electrically connected to the cold source, and the second drive circuit is electrically connected to the heat source. In the same time period, the controller is used to control one of the first drive circuit and the second drive circuit to be powered on.

[0026] Furthermore, the control mechanism also includes a temperature sensor;

[0027] The temperature sensor is arranged on the wearing mechanism, and the temperature sensor is used to detect the temperature of the cold source and the temperature of the heat source;

[0028] The temperature sensor is electrically connected to the controller.

[0029] Furthermore, the control mechanism also includes a power module and a plug;

[0030] The plug is used to obtain electrical energy, and the plug is electrically connected to the power module;

[0031] The power module is electrically connected to the controller, the first drive circuit and the second drive circuit respectively.

[0032] Further, the controller also includes a first control switch, a second control switch and a third control switch;

[0033] The first control switch, the second control switch and the third control switch are respectively connected in series in the circuit between the power module and the controller, wherein the first control switch is electrically connected to the power supply pin of the controller, and the second control switch and the third control switch are respectively electrically connected to one of the control pins of the controller.

[0034] The above technical solution has the following advantages or beneficial effects:

[0035] In the compress device provided by the utility model, a cold source is used to replace an ice bag, and a timer function of a control mechanism is used to replace the monitoring of the working time of the cold source by medical staff. When the actual time of the timer function meets the target working time, the control mechanism can interrupt the work of the cold source, thereby avoiding the situation where the medical staff fails to return to the patient's position in time and causes frostbite on the patient's skin or tissue, thereby improving the work efficiency of the medical staff; a heat source is used to replace the heated 50% magnesium sulfate sterile solution in the prior art, thereby reducing the working time of the medical staff in preparing the heat source and improving the work efficiency of the medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of the application device provided in Example 1 of the utility model;

[0037] Figure 2 A schematic diagram of the structure of the application device provided in Example 1 of the utility model;

[0038] Figure 3 A schematic diagram of the structure of the application block, semiconductor cooling sheet and heat sink provided in Example 1 of the utility model;

[0039] Figure 4 A schematic diagram of the structure of the application block provided in Example 1 of the utility model;

[0040] Figure 5 This is an electrical connection diagram of the application device provided in Example 1 of the utility model. DETAILED DESCRIPTION

[0041] Embodiment 1:

[0042] In this embodiment, a patch compress device is provided. A cold source and a heat source are provided on the wearing mechanism. The cold source and the heat source are selectively powered on by a control mechanism to work, thereby solving the problem of how to provide a patch compress treatment device to improve the work efficiency of medical staff in the process of treating internal fistula hematoma.

[0043] For details, see Figure 1 The patch device of this embodiment is used to treat arteriovenous fistula hematoma, and includes a deformable wearing mechanism 2, a cold source 1 for cooling after power is turned on, a heat source 3 for heating after power is turned on, and a control mechanism 4 with a timer function;

[0044] The wearing mechanism 2 is used to wrap around and fit on the forearm of a human body;

[0045] The cold source 1 and the heat source 3 are respectively arranged on the wearing mechanism 2, and the cold source 1 and the heat source 3 are respectively electrically connected to the control mechanism 4, wherein the control mechanism 4 is used to control at least one of the cold source 1 and the heat source 3 to be energized;

[0046] The cold source 1 and the heat source 3 are spaced apart from the forearm of the human body through the wearing mechanism 2, and a part of the wearing mechanism 2 serves as a heat transfer structure for the cold source 1 and the heat source 3 relative to the human body.

[0047] In this embodiment, the wearing mechanism 2 can be adjusted to a ring shape as a whole, and the wearing mechanism 2 can be wrapped around and fitted on the forearm of a human body; more specifically, the wearing mechanism 2 can be wrapped around and fitted on the location of the internal fistula hematoma on the forearm of a human body;

[0048] In the process of cold compress for internal fistula hematoma, the control mechanism 4 controls the cold source 1 to work, and at the same time, the control mechanism 4 prohibits the heat source 3 from working; after the cold source 1 works, the temperature of the cold source 1 is lower than the temperature of the human body, so that the cold source 1 and the human body generate heat exchange, and from the perspective of the human body, the cold source 1 produces a cold compress effect;

[0049] It should be understood that the control mechanism 4 controls the operation of the cold source 1, which can be achieved according to the control principle of the cold source 1 and through the corresponding control circuit. In the following content, a specific solution for the cold source 1 and a control circuit for the cold source 1 are proposed, which will not be mentioned here for the time being.

[0050] In the process of applying hot compress to the internal fistula hematoma, the control mechanism 4 controls the heat source 3 to work, and at the same time, the control mechanism 4 prohibits the cold source 1 from working; after the heat source 3 works, the temperature of the heat source 3 is higher than the temperature of the human body, so that the heat source 3 and the human body generate heat exchange, and from the perspective of the human body, the heat source 3 produces the effect of hot compress;

[0051] It should be understood that the control mechanism 4 controls the operation of the heat source 3 according to the control principle of the heat source 3 and through the corresponding control circuit. In the following content, a specific solution for the heat source 3 and a control circuit for the heat source 3 are proposed, which will not be mentioned here for the time being.

[0052] The control mechanism 4 has a timer function, which is essentially a timer module included in the controller of the control mechanism 4 (see Figure 5 ); Medical staff can set a corresponding target time length on the timer module according to the cold or hot compress treatment time for the patient, such as 20 minutes or 30 minutes. When the actual time length of the timer module meets the target time length, the timer module can send an interrupt message to the controller, and the controller stops the operation of the cold source 1 or the heat source 3 according to the interrupt message.

[0053] It should be understood that the specific selection of the controller can adopt a variety of controllers in the prior art, such as a single-chip microcomputer; the timer module can be a physical module or a virtual module. When the timer module is a physical module, the timer module should be set on the same circuit board as the controller, and the timer module is electrically connected to the controller. Conversely, when the timer module is a virtual module, the timer module is actually a timing function formed by the microprocessor circuit inside the controller executing the timing program.

[0054] In the present embodiment, in order to prevent the cold source 1 from causing frostbite to the human skin or tissue at the fistula hematoma, a method of forming a distance between the cold source 1 and the human skin is adopted. At the same time, a part of the wearing mechanism 2 is used as a heat transfer structure of the cold source 1 relative to the human body. In other words, one part of the wearing mechanism 2 has two functions. The first function is to form a distance between the cold source 1 and the human skin, and the second function is to play a role in heat transfer between the cold source 1 and the human skin.

[0055] Similarly, in order to prevent the heat source 3 from causing burns to the human skin at the fistula hematoma, a method of forming a distance between the heat source 3 and the human skin is adopted. At the same time, a part of the wearing mechanism 2 is used as a heat transfer structure of the heat source 3 relative to the human body; from another perspective, one part of the wearing mechanism 2 has two functions. The third function is to form a distance between the cold source 1 and the human skin, and the fourth function is to play a role in heat transfer between the heat source 3 and the human skin.

[0056] When the patch device of this embodiment is actually used, the medical staff operates the wearing mechanism 2 to be mounted on the patient's forearm, so that the heat transfer structure of the wearing mechanism 2 is aligned with the position of the fistula hematoma on the forearm; then, the medical staff locks the wearing mechanism 2, so that the heat transfer structure of the wearing mechanism 2 is in close contact with the position of the fistula hematoma; then, the medical staff powers on the control mechanism 4, and operates the control mechanism 4 to control the cold source 1 or the heat source 3 to work; wherein, at the moment when the medical staff operates the cold source 1 or the heat source 3 to start working, the timer function of the controller is triggered, and after the actual time length of the timer function meets the target time length, the control mechanism 4 interrupts the current cold source 1 or the heat source 3 from working.

[0057] In the traditional cold compress treatment for fistula hematoma, after the medical staff places the ice pack on the patient's forearm, they need to monitor the cold compress time by themselves through the clock or alarm function;

[0058] If the medical staff leaves the patient first, and returns to the patient to remove the ice pack after the cold compress has been applied for a predetermined time, the work efficiency of the medical staff will be low. This phenomenon of low work efficiency is particularly prominent when one medical staff monitors multiple patients.

[0059] If the medical staff leaves the patient and does not return to the patient when the cold compress reaches the predetermined time, the cold compress will last too long, increasing the probability of frostbite in the patient; especially when one medical staff monitors multiple patients, the negative phenomenon of frostbite is particularly prominent.

[0060] In the compress device of the present embodiment, the cold source 1 is used to replace the ice bag, and the timer function of the control mechanism 4 replaces the monitoring of the working time of the cold source 1 by the medical staff, and when the actual time of the timer function meets the target working time, the control mechanism 4 can interrupt the operation of the cold source 1, avoiding the situation where the medical staff fails to return to the patient's position in time and causes frostbite on the patient's skin or tissue, thereby improving the work efficiency of the medical staff.

[0061] In the traditional hot compress treatment for fistula hematoma, medical staff need to prepare a proper amount of 50% magnesium sulfate sterile solution and pour it into a clean container, and then put the container into another larger container filled with 60°C hot water for water heating; this method increases the working time of medical staff and causes low work efficiency;

[0062] The patch device of this embodiment adopts a heat source 3 to replace the heated 50% magnesium sulfate sterile solution in the prior art, thereby reducing the working time of medical staff in preparing the heat source 3 and improving the work efficiency of the medical staff; in addition, the working time of the heat source 3 is monitored by a control mechanism 4 with a timing function, and when the actual time of the timer function meets the target working time, the control mechanism 4 can interrupt the operation of the heat source 3, thereby avoiding the heat source 3 from forming heat transfer with the human skin for a long time and causing burns.

[0063] Therefore, the patch application device of this embodiment solves the problem of how to provide a patch application treatment device to improve the work efficiency of medical staff during the treatment of internal fistula hematoma.

[0064] For further information, see Figures 2 to 4 In the present embodiment, the wearing mechanism 2 of the patch device includes a plurality of patch blocks 201, and the plurality of patch blocks 201 are sequentially configured into a long strip shape, wherein a hinge structure 202 is formed between any two adjacent patch blocks 201;

[0065] Each of the application blocks 201 has a working surface A for application, a through hole B for setting a heat source 3, and a mounting surface C for setting a cold source 1, wherein the working surface A and the mounting surface C are opposite to each other, and the through hole B is located between the working surface A and the mounting surface C;

[0066] Each application block 201 is made of metal material.

[0067] The application block 201 is in the shape of a long strip as a whole, and the smallest end face of the application block 201 can be manufactured into a variety of shapes, such as a rectangle, a trapezoid, a circle, a regular polygon, etc. Correspondingly, the application block 201 is in the shape of a rectangular block, a trapezoidal block, a cylinder, a regular polygon, etc.

[0068] There are multiple application blocks 201, and a hinge structure 202 is provided between any two application blocks 201. The hinge structure 202 can be in the form of a hinge with an articulation axis and an articulation sleeve, or in the form of an articulation groove and an articulation ball head. In this embodiment, no specific limitation is imposed on the hinge structure 202.

[0069] It should be understood that in other embodiments, a deformable connecting component may be used instead of the hinge structure 202, and the deformable connecting component may be made of, for example, rubber, silicone, soft plastic or cloth.

[0070] The plurality of application blocks 201 and the corresponding hinge structures 202 form a long strip-shaped structure as a whole. In the long strip-shaped structure, the two ends are one of the application blocks 201, and the application blocks 201 at the two ends are used to connect with the Velcro 220 and / or elastic band described later.

[0071] When the multiple application blocks 201 are laid flat on a plane, the multiple application blocks 201 are in a rectangular long strip structure as a whole, or the multiple application blocks 201 are in a fan-shaped long strip structure as a whole;

[0072] When the multiple patch blocks 201 are wrapped around the forearm of a person, the multiple patch blocks 201 have an arc-shaped long strip structure as a whole.

[0073] By using multiple application blocks 201 and corresponding hinge structures 202, the multiple application blocks 201 can be adjusted to a shape that fits the curve of the human forearm, thereby increasing the contact area between the multiple application blocks 201 and the human forearm.

[0074] The application block 201 is made of metal material, and the metal material should be selected as a metal material suitable for medical safety, such as aluminum, iron, copper and other materials, or the metal material should be selected as an alloy material suitable for medical safety, such as aluminum alloy or stainless steel; the purpose of using metal material is to improve the heat transfer efficiency of the cold source 1 or the heat source 3 relative to the human body through the application block 201.

[0075] The application block 201 is provided with a through hole B, so that the heat source 3 can be arranged in the through hole B. In other words, when the heat source 3 is arranged in the through hole B of the application block 201, the heat source 3 is isolated from the human skin by a part of the application block 201, thereby forming a distance between the heat source 3 and the human skin;

[0076] Similarly, a mounting surface C is provided on the application block 201, so that the cold source 1 can be set on the mounting surface C. In other words, when the cold source 1 is set on the mounting surface C of the application block 201, the cold source 1 is isolated from the human skin by the application block 201, thereby forming a distance between the cold source 1 and the human skin, and at the same time, a distance between the cold source 1 and the heat source 3 is also formed.

[0077] When the cold source 1 is working, the control mechanism 4 prohibits the heat source 3 from working, so that the compress block 201 only serves as a structure for heat transfer between the cold source 1 and the human skin. Since the temperature generated by the cold source 1 is lower than the temperature of the human body, the cold source 1 and the compress block 201 produce a cold compress effect relative to the human skin.

[0078] Similarly, when the heat source 3 is working, the control mechanism 4 prohibits the cold source 1 from working, so that the application block 201 only serves as a structure for heat transfer between the heat source 3 and the human skin. Since the temperature generated by the heat source 3 is higher than the temperature of the human body, the heat source 3 and the application block 201 produce a hot compress effect relative to the human skin.

[0079] Furthermore, in the application device of this embodiment, the heat source 3 is specifically a heating wire;

[0080] The heating wire is snake-shaped and penetrates through the through hole B on any application block 201.

[0081] The specific structure of the heating wire is common knowledge known to those skilled in the art. For example, the heating wire in an electric blanket can be used as the heat source 3 in this embodiment.

[0082] The heating wire passes through the through holes B on any application block 201 one by one according to the arrangement order of the multiple application blocks 201; the heating wire will bend between two adjacent application blocks 201, so that after the heating wire is arranged as a whole in the through holes B of the multiple application blocks 201, the heating wire as a whole presents a snake shape.

[0083] The principle of the heating wire is to generate heat after being energized. An insulating layer is provided on the outer surface of the heating wire. Therefore, the electrical energy of the heating wire when working cannot be transferred to the aforementioned multiple application blocks 201, ensuring the safe use of the application device of this embodiment.

[0084] Furthermore, in the application device of this embodiment, the cold source 1 is specifically a semiconductor cooling sheet;

[0085] The semiconductor cooling sheet has a cooling surface and a heating surface, and the cooling surface is adhered to the mounting surface C.

[0086] The specific structure of the semiconductor cooling plate is common knowledge known to those skilled in the art and will not be described in detail here.

[0087] The two surfaces of the semiconductor refrigeration sheet are a cooling surface and a heating surface, which is common knowledge known to those skilled in the art; wherein the cooling surface is pasted on the application block 201, so that the semiconductor refrigeration sheet acts as a cold source 1 and forms heat transfer relative to the human skin through the application block 201.

[0088] It should be understood that in order to match the shape and size of the semiconductor cooling sheet, the mounting surface C of the aforementioned application block 201 should match the shape of the semiconductor cooling sheet; specifically, if the shape of the semiconductor cooling sheet is square, then when the application block 201 is configured as a long strip block structure, the width of its mounting surface C should be equal to or slightly larger than the width of the semiconductor cooling sheet, so that when the semiconductor cooling sheet is pasted on the mounting surface C of the application block 201, the semiconductor cooling sheet can be completely covered by the mounting surface C of the application block 201.

[0089] It should be understood that in order to improve the temperature uniformity during the cold compress process, at least one semiconductor refrigeration sheet should be arranged on the mounting surface C of any compress block 201, so that any compress block 201 can serve as a heat transfer structure between at least one semiconductor refrigeration sheet and the skin of the human body.

[0090] It should be understood that in a possible usage scenario, after the medical staff uses the patch device of this embodiment to apply cold compress to the location of the patient's internal fistula hematoma, they may immediately need to apply hot compress to the location of the patient's internal fistula hematoma; in this case, the medical staff can directly turn off the cold source 1 (interrupt the power supply to the semiconductor refrigeration plate), and then directly turn on the heat source 3, and use the heat source 3 to heat the patch block 201 without affecting the hot compress process.

[0091] It should be understood that in a possible usage scenario, after the medical staff uses the patch device of this embodiment to apply hot compress to the location of the patient's internal fistula hematoma, it may be necessary to apply cold compress to the location of the patient's internal fistula hematoma again; in this case, it is preferred to cut off the power of the patch device of this embodiment to allow the patch block 201 to naturally return to room temperature, and then the medical staff can power on the patch device again; in an emergency, the medical staff can also directly turn on the cold source 1 after interrupting the power supply of the heat source 3, and use the cold source 1 to reduce the temperature of the patch block 201.

[0092] It should be understood that when the semiconductor refrigeration sheet is in operation, the cooling surface produces a relatively low temperature, while the heating surface produces a relatively high temperature. When the application device of this embodiment is wrapped around and attached to the forearm of the human body, the position of the heating surface is relatively close to the skin of the forearm of the human body. If the patient accidentally moves his arm, the heating surface may scald the skin of other parts of the patient's body.

[0093] It should be understood that the above-mentioned 'the position of the heating surface is relatively close to the skin at the human forearm' refers to the distance between the entire semiconductor refrigeration plate and the skin at the human forearm, for example, it may be a distance generally the thickness of a bracelet; therefore, those skilled in the art cannot understand the above-mentioned 'the position of the heating surface is relatively close to the skin at the human forearm' as meaning that the distance between the heating surface and the skin at the human forearm is greater than the distance between the cooling surface and the skin at the human forearm.

[0094] In order to prevent the heating surface from scalding other parts of the patient's skin, in this embodiment, a heat sink 5 is attached to the heating surface of the semiconductor refrigeration plate, and the heat sink 5 is made of metal material.

[0095] See also Figure 1 or Figure 3 , a heat sink 5 is arranged on the heating surface of the semiconductor refrigeration plate, which can increase the heat dissipation area of ​​the heating surface relative to the atmosphere and improve the heat dissipation efficiency. In addition, due to the existence of the radiator, the radiator actually becomes a barrier between the human skin and the heating surface; based on the above content, the heat sink 5 reduces or avoids the situation where the heating surface of the semiconductor refrigeration plate burns the human skin.

[0096] Further, the application device of this embodiment, see Figure 1 , the wearing mechanism 2 also includes Velcro 220 and / or elastic band;

[0097] Both ends of the Velcro 220 and / or the elastic band are respectively connected to the multiple application blocks 201 , and the connection points between the Velcro 220 and / or the elastic band and the multiple application blocks 201 are located at both ends of the long strips of the multiple application blocks 201 .

[0098] The wearing mechanism 2 has a first state of being detached from the forearm of a person and a second state of being fastened to the forearm of a person, and the Velcro 220 and / or the elastic band are used to control the wearing mechanism 2 to switch between the first state and the second state.

[0099] Among them, the above technical solutions are specifically the following three specific technical solutions:

[0100] The first type is that the wearing mechanism 2 only includes the Velcro 220;

[0101] The second type is that the wearing mechanism 2 only includes an elastic band (not shown in the figure);

[0102] The third type is that the wearing mechanism 2 includes both Velcro 220 and elastic band.

[0103] When the first scheme mentioned above is adopted, the Velcro 220 has a snap component and an adhesive component, which are respectively arranged on one of the application blocks 201 at both ends of the multiple application blocks 201, and the application block 201 can be connected to the snap component and the adhesive component by using the connection method of the existing technology. For example, screws can be used to penetrate the snap component and the adhesive component and connect to the threaded hole of the application block 201, or, by using a positioning pin and a pressing block, the snap component and the adhesive component are penetrated by the positioning pin, and the two ends of the positioning pin are respectively inserted into the positioning hole of the pressing block and the positioning hole of the application block 201, and then the pressing block and the application block 201 are connected by screws. Alternatively, an adhesive suitable for metal and chemical limiting materials can be directly used to stick the snap component and the adhesive component to the corresponding application block 201 respectively.

[0104] When adopting the aforementioned second scheme, the elastic band should be set on the application block 201 in a fixed or detachable manner; among them, if the elastic band is set on the application block 201 in a fixed manner, the elastic band should be configured as a strip-shaped whole, and the two ends of the elastic band can be respectively connected by the aforementioned 'connection method between Velcro 220 and the application block 201'; and, if the elastic band is set on the application block 201 in a detachable manner, the elastic band is configured as a strip-shaped whole, and a connecting mechanism should be provided; the connecting structure can be a clasp and a hook, and clasps are respectively provided at both ends of the elastic band, and hooks are respectively provided on the application blocks 201 at both ends of multiple application blocks 201.

[0105] When adopting the aforementioned third scheme, the elastic band can be configured into one section or two sections, wherein, when the elastic band is configured into one section, one of the snapping part and the adhesive part of the Velcro 220 is connected to one of the application blocks 201 through the elastic band of this section, and the remaining snapping part or adhesive part is directly connected to the other application block 201; when the elastic band is configured into two sections, the snapping part is connected to one of the application blocks 201 through the elastic band of one section, and the adhesive part is connected to the other application block 201 through the elastic band of the other section.

[0106] It should be understood that the connection method between the elastic band and the buckle component and the adhesive component is common knowledge known to those skilled in the art, such as sewing connection or rivet connection.

[0107] Further, based on all the above, see Figure 5 In the application device of this embodiment, the control mechanism 4 includes a controller 401, a first drive circuit 402 and a second drive circuit 403;

[0108] The controller 401 is electrically connected to the first driving circuit 402 and the second driving circuit 403 respectively;

[0109] The first driving circuit 402 is electrically connected to the cold source 1 , and the second driving circuit 403 is electrically connected to the hot source 3 . In the same time period, the controller 401 is used to control one of the first driving circuit 402 and the second driving circuit 403 to be powered on.

[0110] It should be understood that if the aforementioned timer function is formed by a physical timer module 404, then the physical timer module 404 should be set on the circuit board together with the controller 401, and the two should be electrically connected; if the aforementioned timer function is formed by a virtual timer module 404, then a controller 401 with a timer function should be selected.

[0111] The first driving circuit 402 is used to drive the cold source 1. Specifically, the first driving circuit 402 is used to drive the aforementioned semiconductor refrigeration plate. The working principle and control principle of the semiconductor refrigeration plate are common knowledge known to those skilled in the art and will not be repeated here. Correspondingly, the structure and control principle of the first driving circuit 402 for controlling the semiconductor refrigeration plate are also common knowledge known to those skilled in the art and will not be repeated here.

[0112] The second driving circuit 403 is used to drive the heat source 3. Specifically, the second driving circuit 403 is used to drive the aforementioned heating wire. The working principle and control principle of the heating wire are common knowledge known to those skilled in the art and will not be described in detail here. Correspondingly, the structure and control principle of the second driving circuit 403 for controlling the heating wire are also common knowledge known to those skilled in the art and will not be described in detail here.

[0113] For further information, see Figure 5 , the application device of this embodiment, the control mechanism 4 also includes a temperature sensor 405;

[0114] The temperature sensor 405 is arranged on the wearing mechanism 2, and the temperature sensor 405 is used to detect the temperature of the cold source 1 and the temperature of the heat source 3;

[0115] The temperature sensor 405 is electrically connected to the controller 401 .

[0116] The temperature sensor 405 can be specifically disposed in a mounting groove of one of the application blocks 201. The temperature sensor 405 can be a thermocouple or a thermal resistor, and the thermocouple or the thermal resistor can be welded in the mounting groove.

[0117] In this embodiment, the direct function of the temperature sensor 405 is to obtain the temperatures of the cold source 1 and the heat source 3; specifically, when the cold source 1 is working, the temperature of the application block 201 is obtained through the temperature sensor 405, thereby obtaining the temperature of the cold source 1, and, when the heat source 3 is working, the temperature of the application block 201 is obtained through the temperature sensor 405, thereby obtaining the temperature of the heat source 3.

[0118] The temperature sensor 405 can be designed as a part of the control system in the overall control concept of the control mechanism 4, or can be set as a part of the information path for displaying the temperature to the staff or the patient;

[0119] Specifically, the temperature sensor 405, the first drive circuit 402, the cold source 1 and the controller 401 form a first closed-loop control system, and the temperature sensor 405, the second drive circuit 403 and the controller 401 form a second closed-loop control system;

[0120] In the first closed-loop control system, the controller 401 first controls the first drive circuit 402 to obtain electric energy, so that the first drive circuit 402 transmits electric energy to the cold source 1, and the cooling surface of the cold source 1 starts to cool. The temperature of the application block 201 after cooling is obtained through the temperature sensor 405. The temperature sensor 405 converts the temperature of the application block 201 into an electric signal and sends it to the controller 401. Thus, the controller 401 uses the electric signal of the temperature as a control parameter. When the temperature exceeds the upper limit temperature value executed by the controller 401, the controller 401 interrupts the first drive circuit 402 from obtaining electric energy, so that the cold source 1 loses electric energy.

[0121] The control principle of the second closed-loop control system is the same as or similar to the principle of the first closed-loop control system described above, and will not be described in detail here.

[0122] When the control mechanism 4 is provided with a liquid crystal display, the temperature sensor 405, the controller 401 and the liquid crystal display constitute an information path for displaying the temperature; wherein, after the temperature sensor 405 obtains the temperature of the application block 201, the temperature sensor 405 converts the temperature into an electrical signal and sends it to the controller 401. After the controller 401 compiles the electrical signal of the temperature, it forms temperature information that can be recognized by humans, such as 40 degrees. The controller 401 can display the temperature information externally through the liquid crystal display.

[0123] For further information, see Figure 1 or Figure 5 , the application device of this embodiment, the control mechanism 4 also includes a power module 406 and a plug 410;

[0124] The plug 410 is used to obtain electrical energy, and the plug 410 is electrically connected to the power module 406;

[0125] The power module 406 is electrically connected to the controller 401 , the first driving circuit 402 , and the second driving circuit 403 , respectively.

[0126] The plug 410 is connected to the power module 406 through a wire. When the plug 410 is plugged into a socket in the ward, the plug 410 obtains electrical energy and transmits the electrical energy to the power module 406.

[0127] The power module 406 is actually used to convert direct current into alternating current. The electric energy obtained through the plug 410 is city power, which is alternating current. The aforementioned controller 401, semiconductor cooling plate and other electrical components are powered by direct current. Therefore, the power module 406 can only supply power to the controller 401 and the semiconductor cooling plate after converting the alternating current into direct current.

[0128] It should be understood that the specific structure and working principle of the power module 406 are common knowledge known to those skilled in the art and will not be described in detail here.

[0129] For further information, see Figure 1 In the application device of this embodiment, the controller 401 further includes a first control switch 411, a second control switch 412 and a third control switch 413;

[0130] The first control switch 411, the second control switch 412 and the third control switch 413 are respectively connected in series in the circuit between the power module 406 and the controller 401, wherein the first control switch 411 is electrically connected to the power supply pin of the controller 401, and the second control switch 412 and the third control switch 413 are respectively electrically connected to one of the control pins of the controller 401.

[0131] The first control switch 411 is used to control the power on and off of the controller 401, and the second control switch 412 and the third control switch 413 are used to issue control instructions to the controller 401 respectively;

[0132] When the controller 401 receives the instruction sent by the second control switch 412, the controller 401 controls the first drive circuit 402 to be powered, and prohibits the second drive circuit 403 from being powered;

[0133] Similarly, when the controller 401 receives the instruction from the third control switch 413, the controller 401 controls the second drive circuit 403 to be powered, and prohibits the first drive circuit 402 from being powered;

[0134] Furthermore, if the controller 401 receives instructions from the second control switch 412 and the third control switch 413 at the same time, the controller 401 triggers the interlocking function, that is, the controller 401 can only control one of the drive circuits to be powered according to one of the instructions; the interlocking function of the controller 401 can be implemented through programming or through two additional relays, which is common knowledge known to those skilled in the art.

[0135] In addition to the foregoing, a main switch may be provided between the plug 410 and the power module 406, and the main switch is used to control whether the power module 406 is powered on or off.

[0136] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An application device for treating arteriovenous fistula hematoma, characterized in that: It includes a deformable wearable mechanism, a cold source for cooling after being powered on, a heat source for heating after being powered on, and a control mechanism with a timer function; The wearing mechanism is used to wrap around and fit on the forearm of a human body; The cold source and the heat source are respectively arranged on the wearing mechanism, and the cold source and the heat source are respectively electrically connected to the control mechanism, wherein the control mechanism is used to control at least one of the cold source and the heat source to be energized; The cold source and the heat source are respectively spaced apart from the forearm of the human body through the wearing mechanism, and a part of the wearing mechanism serves as a heat transfer structure of the cold source and the heat source relative to the human body.

2. The application device according to claim 1, characterized in that The wearing mechanism comprises a plurality of application blocks, wherein the plurality of application blocks are sequentially arranged in a long strip shape, wherein a hinge structure is formed between any two adjacent application blocks; Each of the application blocks has a working surface for application, a through hole for setting the heat source, and a mounting surface for setting the heat source, wherein the working surface and the mounting surface are opposite to each other, and the through hole is located between the working surface and the mounting surface; Any of the application blocks is made of metal material.

3. The application device according to claim 2, characterized in that: The heat source is specifically a heating wire; The heating wire is serpentine and penetrates through the through holes on any one of the application blocks.

4. The application device according to claim 2, characterized in that: The cold source is specifically a semiconductor refrigeration sheet; The semiconductor refrigeration sheet has a cooling surface and a heating surface, and the cooling surface is adhered to the mounting surface.

5. The application device according to claim 4, characterized in that: The heating surface is pasted with a heat sink, which is made of metal material.

6. The application device according to claim 2, characterized in that: The wearing mechanism also includes Velcro and / or elastic band; The two ends of the Velcro and / or the elastic band are respectively connected to the plurality of application blocks, and the connection points between the Velcro and / or the elastic band and the plurality of application blocks are located at the two ends of the long strips of the plurality of application blocks; The wearing mechanism has a first state of being detached from a person's forearm and a second state of being fastened to a person's forearm, and the Velcro and / or the elastic band are used to control the wearing mechanism to switch between the first state and the second state.

7. The application device according to any one of claims 1 to 6, characterized in that: The control mechanism includes a controller, a first drive circuit and a second drive circuit; The controller is electrically connected to the first drive circuit and the second drive circuit respectively; The first drive circuit is electrically connected to the cold source, and the second drive circuit is electrically connected to the heat source. In the same time period, the controller is used to control one of the first drive circuit and the second drive circuit to be powered on.

8. The application device according to claim 7, characterized in that: The control mechanism also includes a temperature sensor; The temperature sensor is arranged on the wearing mechanism, and the temperature sensor is used to detect the temperature of the cold source and the temperature of the heat source; The temperature sensor is electrically connected to the controller.

9. The application device according to claim 7, characterized in that: The control mechanism also includes a power module and a plug; The plug is used to obtain electrical energy, and the plug is electrically connected to the power module; The power module is electrically connected to the controller, the first drive circuit and the second drive circuit respectively.

10. The application device according to claim 9, characterized in that: The controller further includes a first control switch, a second control switch and a third control switch; The first control switch, the second control switch and the third control switch are respectively connected in series in the circuit between the power module and the controller, wherein the first control switch is electrically connected to the power supply pin of the controller, and the second control switch and the third control switch are respectively electrically connected to one of the control pins of the controller.

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