A hot compress device for hemodialysis

Abstract

The invention discloses a hot compress device for hemodialysis, which relates to the technical field of medical devices. A device shell is arranged above a base, and installation cavities are symmetrically provided on both sides of the device shell, and a clamping assembly is arranged in the installation cavity; a movement cavity is provided in the middle position of the device shell, a fan is provided in the middle of the top of the movement cavity, and the fan is vertically downwardly arranged in the movement cavity, a film is provided below the fan, and the film is sealed at the bottom of the movement cavity, both ends of the film are fixedly connected to the movement cavity, and a fixing rod is provided in the movement cavity; a mounting block is provided on the fixing rod, and mounting holes are provided on the mounting block, and the number of the mounting holes is the same as that of the fixing rod, and the mounting block is slidably installed with the fixing rod through the mounting holes, and a dressing assembly is provided below the mounting block. The device solves the problem that when hot compress is applied to a wound site after dialysis, the hot compress cannot be evenly fitted to the wound site, resulting in uneven hot compress, thereby increasing the risk of infection at the wound site.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically to a hot compress device for hemodialysis. Background Art

[0002] Hemodialysis is a medical treatment method that is usually used to treat severe renal failure, especially when the kidneys effectively filter waste and excess water from the blood. The blood is drawn out of the body through an extracorporeal circulation device with a dialyzer to remove harmful substances and water from the blood. The temporary dialysis tube is removed and takes up to a week to heal. After the temporary tube is removed, the blood vessels at the venous puncture site are prone to hardening, which affects the effect of the next venous puncture. Therefore, hot compresses are required at the puncture site to help local recovery after the venous puncture and relieve the patient's discomfort.

[0003] In the prior art, hot compresses are mainly applied manually by patients and hot compress devices to the wound after dialysis. Patients manually apply hot compresses to the wound after dialysis by soaking a towel or cloth, wringing it out and putting it in warm water. The water temperature is kept between 38°C and 40°C. The wet towel is applied to the area around the wound after dialysis for 15 to 20 minutes. It can be repeated multiple times according to the patient's physical needs, but a certain time interval is required between each hot compress to avoid overheating the skin. However, since the wet towel will keep the local skin in a humid environment for a long time, this environment provides conditions for bacteria or fungi, especially in the case of unclean dressings or water sources, which may cause skin infection and cause secondary injuries to the patient. To prevent harm, a hot compress method is proposed. A heating patch is attached to the skin around the wound after dialysis, and an appropriate temperature is set. The hot compress time is maintained for about 20 minutes to ensure that the temperature is appropriate to avoid burns. After the end, the hot compress device is removed in time. Since the heating patch is in direct contact with the skin, it may accelerate blood circulation around the wound site, causing local tissue edema, thereby delaying wound healing. At the same time, due to the internal material of the heating patch, the wound site and the hot compress device cannot fit tightly, which affects the uniform heating of the wound site after dialysis, resulting in excessively high local temperature in the wound site, which in turn triggers a local inflammatory response. Especially when the wound has not yet healed, overheating may cause local bacteria to multiply and increase the risk of infection.

[0004] In view of the above situation, the present invention designs a hot compress device for hemodialysis to solve the above technical problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a hot compress device for hemodialysis, which solves the problem that when applying hot compress to the wound after dialysis, the hot compress material cannot fit the wound evenly, resulting in uneven hot compress on the wound after dialysis, thereby increasing the risk of infection in the wound.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hot compress device for hemodialysis, used for hot compressing the wound area of ​​a patient after hemodialysis, comprising a base, a device shell is arranged above the base, the device shell is an annular structure, and installation cavities are symmetrically opened on both sides of the device shell, a through hole is opened between the installation cavities on both sides, and the installation cavities on both sides are connected through the through hole, and a clamping assembly for fixing the entire device is arranged in the installation cavity; a movement cavity is opened in the middle position of the device shell, the movement cavity is arranged in the middle of the installation cavities on both sides, and the movement cavity is symmetrically arranged with the base, a fan is arranged in the middle of the top of the movement cavity, and the fan is arranged vertically downward on the movement cavity. In the cavity, a film is arranged below the fan, and the film is sealed at the bottom end of the motion cavity, both ends of the film are fixedly connected to the motion cavity, and a fixing rod is arranged in the motion cavity; a mounting block is arranged on the fixing rod, and mounting holes are opened on the mounting block, and the number of the mounting holes is consistent with that of the fixing rod, and the mounting block is slidably installed with the fixing rod through the mounting holes, and a dressing assembly is arranged below the mounting block, and the fan rotates to push the film toward the wound site, and after the film fits the wound site, the mounting block moves on the fixing rod, and the mounting block drives the dressing assembly to move, and when the dressing assembly contacts the wound site, the dressing assembly fixes the hot compress fitting the film to the wound site after dialysis.

[0007] Preferably, the clamping assembly includes a support rod, a telescopic part, a connecting rod, a movable ring, a fixed ring and a connecting block, the support rod is arranged through a through hole, and both ends of the support rod are respectively fixedly connected to the device housing, the telescopic parts are symmetrically arranged at both ends of the support rod, the telescopic part is connected to the movable ring at one end away from the device housing, and the telescopic part is fixedly connected to the movable ring, the movable ring is provided with a fixed ring on the side away from the telescopic part, and connecting rods are arranged on the circumferential surfaces of the movable ring and the fixed ring, two of the connecting rods form a group, one end of one of the connecting rods is connected to the movable ring, and the other end of one of the connecting rods is installed with a connecting block, one end of the other connecting rod is connected to the fixed ring, and the other end of the other connecting rod is installed with a connecting block, and the two connecting rods are cross-arranged, and the connecting rods are arranged in multiple groups.

[0008] Preferably, the connecting rod, movable ring, fixed block and connecting block are symmetrically arranged at both ends of the support rod, and multiple groups of connecting rods are wound into a regular hexagon. The telescopic part drives the movable ring to move on the support rod, and the movement of the movable ring drives the multiple groups of connecting rods to expand or contract.

[0009] Preferably, an electromagnet No. 1 is provided at one end of the motion cavity, and the electromagnet No. 1 is fixedly arranged on a fixed rod, and an electromagnet No. 2 is installed on one side of the mounting block, and the electromagnet No. 1 corresponds to the electromagnet No. 2, and when current in the same direction is passed through the two electromagnets, the electromagnet No. 2 drives the mounting platform to move toward the electromagnet No. 1, and when current in opposite directions is passed through the two electromagnets, the electromagnet No. 2 drives the mounting platform to move away from the electromagnet No. 1.

[0010] Preferably, the fixing rods are arranged in the movement cavity, and the fixing rods are symmetrically arranged in the movement cavity, and two groups of the fixing rods are arranged through the mounting block, and the mounting block and the fixing rods are slidably installed.

[0011] Preferably, a sensor is provided under the fan, and the sensor is used to detect the distance between the fan and the film. When the distance between the fan and the film exceeds a set value, the sensor controls the first electromagnet and the second electromagnet to be energized.

[0012] Preferably, the dressing assembly includes a control spring, a support plate and a fixed plate, a control spring is arranged under the mounting block, a linear array of the control springs is arranged under the mounting platform, and one end of the control spring away from the mounting block is connected to the support plate, the control springs and the support plates are arranged in a one-to-one correspondence, a fixed plate is arranged on one side of the mounting block, and the height of the fixed plate is greater than the height of the support plate in the initial state.

[0013] Preferably, a connecting spring is arranged at one end of the mounting block away from the fixing plate, the connecting spring is symmetrically arranged below the mounting block, and one end of the connecting spring away from the mounting block is connected to a contact block.

[0014] Preferably, the contact block is stepped, and an arc surface is provided on the stepped contact block. When the mounting block moves to the wound site of the patient, the arc surface of the contact block passes over the wound site of the patient after dialysis.

[0015] Preferably, in the initial state, the control spring and the connecting spring are in an uncompressed state, the contact block and the support plate are in the same horizontal position, and the contact block fits one side of the support plate.

[0016] Beneficial effects of the present invention:

[0017] 1. A hot compress device for hemodialysis provided by the present invention pushes a film toward a wound site after dialysis by a fan in a motion chamber, so that the film fits the wound site after dialysis. After the film fits, a sensor is used to detect the distance between the fan and the wound site. When the distance reaches a set value, the sensor controls the No. 1 electromagnet and the No. 2 electromagnet on the fixed rod and the mounting block to be energized, and the No. 1 electromagnet is pushed to move by the No. 2 electromagnet, so that the mounting block moves on the fixed rod. During the movement of the mounting block, the hot compress is fixed to the wound site after dialysis by the dressing assembly in conjunction with the film, and the hot compress can fit the film to perform uniform hot compress on the wound site, thereby preventing the local temperature of the wound site from being too high, causing local bacterial reproduction, and increasing the risk of infection.

[0018] 2. The present invention provides a hot compress device for hemodialysis, which utilizes a clamping assembly to clamp both ends of the inner shell of the device. When the patient places his arm inside the device shell, the clamping assembly drives the movable ring to move through the telescopic member. During the movement of the movable ring, multiple groups of connecting rods are driven to shrink in the installation cavity. The shrinkage of multiple connecting rods makes the inner shell of the device fit the patient's arm, and the device shell fits tightly on the patient's arm to prevent the device shell from falling off, thereby preventing the patient from shaking his arm during hot compress, causing the device shell to shift, causing the hot compress material to shift inside the device shell, and thus better performing uniform hot compress on the patient's wound after dialysis.

[0019] 3. A hot compress device for hemodialysis provided by the present invention comprises a hot compress assembly and a film. During hot compress, the film is first pushed to fit the wound site by a fan, and then the No. 2 electromagnet is pushed to move by the No. 1 electromagnet. At this time, the mounting block drives the hot compress assembly to move. When the contact block moves to the wound site, the arc surface on the contact block will pass over the wound site. When the wound site contacts the hot compress material, the wound site will push the hot compress material upward. Since the hot compress material is fixedly connected to the support plate, the upward movement of the hot compress drives the support plate to squeeze the control spring, so that the hot compress material fits the wound site, and then the wound site is evenly hot-compressed. When the fixing plate contacts the protrusion of the wound site, since the height of the fixing plate is higher than the height of the support plate in the initial state, the fixing plate enables the mounting block to move continuously, so that the hot compress material can be fixed to the wound site for hot compress, thereby avoiding uneven heating of the wound site, which may lead to overheating and infection of the wound site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional schematic diagram of the overall structure of the present invention;

[0021] Figure 2 A half-section view of the housing of the device of the present invention cooperating with the clamping assembly;

[0022] Figure 3 It is a schematic diagram of the overall structure of the clamping assembly of the present invention;

[0023] Figure 4 A half-section view of the overall structure of the present invention;

[0024] Figure 5 It is a cross-sectional view of the overall structure of the clamping assembly and the dressing assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of the mounting block of the present invention;

[0026] Figure 7 For the present invention Figure 1 A partial enlarged view of the middle A;

[0027] Figure 8 For the present invention Figure 6 A partial enlarged view of point B in the middle.

[0028] Reference numerals:

[0029] 1. Base; 2. Device housing; 21. Installation cavity; 22. Movement cavity; 221. Film; 23. Through hole; 3. Clamping assembly; 31. Support rod; 32. Telescopic member; 33. Connecting rod; 34. Moving ring; 35. Fixed ring; 36. Connecting block; 4. Fan; 41. Sensor; 5. Fixed rod; 51. Electromagnet No. 1; 6. Installation block; 61. Electromagnet No. 2; 62. Installation hole; 7. Dressing assembly; 71. Control spring; 72. Support plate; 73. Fixed plate; 74. Connecting spring; 75. Contact block; 751. Stepped; 752. Arc surface. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0031] refer to Figures 1 to 8As shown, a hot compress device for hemodialysis is used for hot compressing the wound area of ​​the patient after hemodialysis, including a base 1, a device shell 2 is arranged above the base 1, the device shell 2 is an annular structure, and installation cavities 21 are symmetrically opened on both sides of the device shell 2, a through hole 23 is opened between the installation cavities 21 on both sides, and the installation cavities 21 on both sides are connected through the through hole 23, and a clamping assembly 3 for fixing the overall device is arranged in the installation cavity 21; a movement cavity 22 is opened in the middle position of the device shell 2, the movement cavity 22 is arranged in the middle of the installation cavities 21 on both sides, and the movement cavity 22 is symmetrically arranged with the base 1, a fan 4 is arranged in the middle of the top of the movement cavity 22, and the fan 4 is arranged vertically downward in the movement cavity 22, and a film 2 is arranged below the fan 4. 21, and the film 221 is sealed at the bottom of the movement cavity 22, and the two ends of the film 221 are fixedly connected to the movement cavity 22, and a fixing rod 5 is arranged in the movement cavity 22; the fixing rod 5 is provided with a mounting block 6, and the mounting block 6 is provided with mounting holes 62, and the number of the mounting holes 62 is the same as that of the fixing rod 5, and the mounting block 6 is slidably installed with the fixing rod 5 through the mounting holes 62, and a dressing assembly 7 is arranged below the mounting block 6, and the fan 4 rotates to push the film 221 toward the wound site, and after the film 221 is attached to the wound site, the mounting block 6 moves on the fixing rod 5, and the mounting block 6 drives the dressing assembly 7 to move, and when the dressing assembly 7 contacts the wound site, the dressing assembly 7 fixes the hot compress to the film 221 on the wound site after dialysis.

[0032] Specifically, an electromagnet No. 1 51 is provided at one end of the motion cavity 22, and the electromagnet No. 1 51 is fixedly arranged on the fixing rod 5, and an electromagnet No. 2 61 is installed on one side of the mounting block 6, and the electromagnet No. 1 51 corresponds to the electromagnet No. 2 61. When the two electromagnets are connected to current in the same direction, the electromagnet No. 2 61 drives the mounting platform to move toward the electromagnet No. 1 51. When the two electromagnets are connected to current in opposite directions, the electromagnet No. 2 61 drives the mounting platform to move away from the electromagnet No. 1 51.

[0033] During the working process, the patient first places his arm inside the device shell 2. Since the base 1 and the movement cavity 22 are parallel to each other, when the base 1 is placed on a horizontal plane, the movement cavity 22 is above the base 1. After the base 1 is placed on a horizontal plane, the patient places his arm horizontally upward into the device shell 2 after dialysis is completed. After the patient's arm is placed, the device shell 2 is fixed at both ends of the device shell 2 by the clamping assembly 3. The device shell 2 and the patient's arm are fixed by the clamping assembly 3 to prevent the patient's arm from shaking during the hot compress process, resulting in a positional deviation between the wound site after dialysis and the hot compress, thereby reducing the risk of infection for the patient. After the device shell 2 is fixed to the patient's arm, the fan 4 is started, and the wind force generated by the fan 4 is used to fit the film 221 connecting the movement cavities 22 to the wound site. Since the patient needs to be fixed after dialysis is completed, After applying the medicine to the wound, hot compress is applied to promote the absorption of the medicine. The medicine applied to the wound of the patient is sticky. When the film 221 moves toward the wound, the film 221 closely adheres to the wound by virtue of the stickiness of the medicine. After the film 221 is adhered, currents in opposite directions are passed through the first electromagnet 51 and the second electromagnet 61. By virtue of the principle of like charges repelling each other, the first electromagnet 51 pushes the second electromagnet 61 to move. Since the second electromagnet 61 is fixedly connected to the mounting block 6, the second electromagnet 61 drives the mounting block 6 to move on the fixed rod 5 during its movement. When the mounting block 6 moves to the wound of the patient after dialysis, the dressing assembly 7 provided under the mounting block 6 is used to fix the hot compress adhered to the film 221 on the wound after dialysis, thereby being able to apply uniform hot compress to the wound, thereby avoiding excessive local temperature in the wound and increasing the risk of infection in the patient's wound.

[0034] Specifically, the clamping assembly 3 includes a support rod 31, a telescopic member 32, a connecting rod 33, a movable ring 34, a fixed ring 35 and a connecting block 36. The support rod 31 is arranged to pass through the through hole 23, and both ends of the support rod 31 are fixedly connected to the device housing 2 respectively. The telescopic members 32 are symmetrically arranged at both ends of the support rod 31, and the end of the telescopic member 32 away from the device housing 2 is connected to the movable ring 34, and the telescopic member 32 is fixedly connected to the movable ring 34, and the side of the movable ring 34 away from the telescopic member 32 is provided with a fixed ring 35, and connecting rods 33 are arranged on the circumferential surfaces of the movable ring 34 and the fixed ring 35. Two connecting rods 33 form a group, one end of which is connected to the movable ring 34, and the other end of which is installed with a connecting block 36, and one end of the other connecting rod 33 is connected to the fixed ring 35, and the other end of the other connecting rod 33 is installed with a connecting block 36, and the two connecting rods 33 are cross-arranged, and the connecting rods 33 are provided in multiple groups.

[0035] Specifically, the connecting rod 33, the movable ring 34, the fixed block and the connecting block 36 are symmetrically arranged at both ends of the support rod 31, and the multiple groups of connecting rods 33 are wound into a regular hexagon. The telescopic member 32 drives the movable ring 34 to move on the support rod 31, and the movement of the movable ring 34 drives the multiple groups of connecting rods 33 to expand or contract.

[0036] During operation, when the device housing 2 needs to be fastened to the patient's arm through the clamping assembly 3, the mobile ring 34 is pushed to move on the support rod 31 through the telescopic member 32, and the movement of the mobile ring 34 drives the connecting rod 33 rotatably installed on the mobile ring 34 to swing. In the initial state, the multiple groups of connecting rods 33 are in the expanded state. When fastening, the telescopic member 32 pulls the mobile ring 34 to move toward one end of the support rod 31 on the support rod 31. At this time, the connecting rod 33 installed on the mobile ring 34 moves toward one end of the support rod 31. Since the fixed ring 35 is fixedly connected to the support rod 31 and the connecting rod installed on the fixed ring 35 The connection 33 is cross-set with the connection installed on the movable ring 34, and the movable ring 34 drives one end of the connecting rod 33 to move toward the support rod 31, and the other end of the connecting rod 33 moves toward the support rod 31 at the same time, thereby realizing the contraction of a group of connecting rods 33, and the contraction of a group of connecting rods 33 drives the remaining connecting rods 33 to contract, and the contraction of the connecting rods 33 drives the device housing 2 to fit the arm, thereby completing the fixation of the device housing 2, and if the connecting rods 33 need to be unfolded, the movable ring 34 can be pushed by the telescopic member 32 to move toward the fixed ring 35, thereby canceling the fixation of the device housing 2 to the patient's arm.

[0037] Specifically, the fixed rod 5 is arranged in the motion cavity 22, and the fixed rod 5 is symmetrically arranged in the motion cavity 22. There are two groups of fixed rods 5, and the two groups of fixed rods 5 are arranged through the mounting block 6, and the mounting block 6 and the fixed rod 5 are slidably installed. Through such an arrangement, when the mounting block 6 moves on the two groups of fixed rods 5, it can move smoothly on the fixed rod 5, avoiding the phenomenon that the mounting block 6 rotates on a single fixed rod 5, thereby improving the stability of the operation of the overall device.

[0038] Specifically, a sensor 41 is provided under the fan 4, and the sensor 41 is used to detect the distance between the fan 4 and the film 221. When the distance between the fan 4 and the film 221 exceeds the set value, the sensor 41 controls the No. 1 electromagnet 51 and the No. 2 electromagnet 61 to be energized. Through such a setting, human intervention and operating errors can be reduced, thereby improving the reliability of the operation of the No. 1 electromagnet 51 and the No. 2 electromagnet 61. At the same time, the start and stop of the No. 1 electromagnet 51 and the No. 2 electromagnet can be accurately controlled, and frequent switching of the No. 1 electromagnet 51 and the No. 2 electromagnet 61 can be avoided, thereby reducing mechanical wear and improving the service life of the overall device.

[0039] Specifically, the dressing assembly 7 includes a control spring 71, a support plate 72 and a fixed plate 73. The control spring 71 is arranged under the mounting block 6. The control spring 71 is arranged in a linear array under the mounting platform, and the end of the control spring 71 away from the mounting block 6 is connected to the support plate 72. The control spring 71 and the support plate 72 are arranged in a one-to-one correspondence. A fixed plate 73 is arranged on one side of the mounting block 6, and the height of the fixed plate 73 is greater than the height of the support plate 72 in the initial state.

[0040] Specifically, a connecting spring 74 is disposed at one end of the mounting block 6 away from the fixing plate 73 . The connecting spring 74 is symmetrically disposed below the mounting block 6 , and one end of the connecting spring 74 away from the mounting block 6 is connected to a contact block 75 .

[0041] During operation, when the mounting block 6 moves toward the wound site of the patient, the contact block 75 provided at the front end of the mounting block 6 first contacts the wound site. Since the venous puncture site will bulge when the patient undergoes dialysis, the wound site will push the contact block 75 upward, and the contact block 75 squeezes the connecting spring 74 to move upward. At this time, the mounting block 6 continues to move, and the hot compress provided on the supporting plate 72 contacts the wound site. At this time, the wound site pushes the supporting plate 72 upward to squeeze the control spring 71, and the hot compress will be tightly attached to the film 221 and fixed to the wound site. When the mounting block 6 continues to move, the fixing plate 73 bulges with the wound site. The mounting block 6 stops moving as a whole, and the No. 1 electromagnet 51 and the No. 2 electromagnet 61 are no longer energized. When the mounting block 6 stops moving, the control spring 71 pushes the support plate 72 toward the wound site due to its own elastic potential energy. The support plate 72 is pushed by a plurality of control springs 71 to make the hot compress fit the wound site, thereby making the hot compress evenly fit the wound site for hot compress, thereby making the wound site evenly heated, and avoiding infection in the wound site caused by excessive local temperature.

[0042] Specifically, the contact block 75 is in a stepped shape 751, and a circular arc surface 752 is provided on the contact block 75 of the stepped shape 751. When the mounting block 6 moves to the wound site of the patient, the circular arc surface 752 of the contact block 75 passes over the wound site of the patient after dialysis. With such a configuration, when the circular arc surface 752 contacts the wound site, the patient's discomfort reaction can be reduced, and at the same time, the contact block 75 can better pass over the wound site of the patient, avoiding the stuck phenomenon of the contact block 75, thereby improving the stability of the operation of the overall device.

[0043] Specifically, in the initial state, the control spring 71 and the connecting spring 74 are in an uncompressed state, the contact block 75 and the support plate 72 are in the same horizontal position, and the contact block 75 is in contact with one side of the support plate 72. Through such a setting, when the contact block 75 passes over the patient's wound area, the support plate 72 can fit the hot compress tightly to the wound area to avoid a large gap between the wound area and the hot compress. At the same time, the contact block 75 is in contact with one side of the support plate 72 to avoid the gap between the contact block 75 and the support plate 72 to cause secondary damage to the patient's wound area, resulting in damage and infection to the patient's wound area.

[0044] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A hot compress device for hemodialysis, used for hot compressing wounds of patients after hemodialysis, characterized in that: The device comprises a base (1), a device housing (2) is arranged above the base (1), the device housing (2) is an annular structure, and mounting cavities (21) are symmetrically provided on both sides of the device housing (2), a through hole (23) is provided between the mounting cavities (21) on both sides, and the mounting cavities (21) on both sides are connected via the through hole (23), and a clamping assembly (3) for fastening the device housing (2) to the patient's arm is provided in the mounting cavity (21); A movement cavity (22) is provided in the middle of the device housing (2), the movement cavity (22) is arranged in the middle of the mounting cavities (21) on both sides, and the movement cavity (22) is symmetrically arranged with the base (1), a fan (4) is provided in the middle of the top of the movement cavity (22), and the fan (4) is vertically downwardly arranged in the movement cavity (22), a film (221) is provided below the fan (4), and the film (221) is sealed at the bottom of the movement cavity (22), both ends of the film (221) are fixedly connected to the movement cavity (22), and a fixing rod (5) is provided in the movement cavity (22); The fixing rod (5) is provided with a mounting block (6), the mounting block (6) is provided with mounting holes (62), the number of the mounting holes (62) being the same as the number of the fixing rod (5), the mounting block (6) is slidably mounted on the fixing rod (5) through the mounting holes (62), a dressing assembly (7) is arranged below the mounting block (6), the fan (4) rotates to generate wind force to push the film (221) toward the wound site, after the film (221) is attached to the wound site, the mounting block (6) moves on the fixing rod (5), the mounting block (6) drives the dressing assembly (7) to move horizontally, and when the dressing assembly (7) contacts the wound site, the dressing assembly (7) fixes the hot compress attached to the film (221) on the wound site after dialysis; The dressing assembly (7) comprises a control spring (71), a support plate (72) and a fixing plate (73); a control spring (71) is arranged under the mounting block (6); a linear array of the control springs (71) is arranged under the mounting platform, and one end of the control spring (71) away from the mounting block (6) is connected to the support plate (72); the control spring (71) and the support plate (72) are arranged in a one-to-one correspondence; a fixing plate (73) is arranged on one side of the mounting block (6), and the height of the fixing plate (73) is greater than the height of the support plate (72) in the initial state.

2. A hot compress device for hemodialysis according to claim 1, characterized in that: The clamping assembly (3) comprises a support rod (31), a telescopic member (32), a connecting rod (33), a movable ring (34), a fixed ring (35) and a connecting block (36); the support rod (31) is arranged to pass through the through hole (23), and both ends of the support rod (31) are respectively fixedly connected to the device housing (2); the telescopic members (32) are symmetrically arranged at both ends of the support rod (31); the end of the telescopic member (32) close to the movement cavity (22) is connected to the movable ring (34), and the telescopic member (32) is fixedly connected to the movable ring (34); and the side of the movable ring (34) away from the telescopic member (32) is provided with a fixed A fixed ring (35), the fixed ring (35) being fixedly connected to the support rod (31), connecting rods (33) being arranged on the circumferential surfaces of the movable ring (34) and the fixed ring (35), two connecting rods (33) forming a group, one end of one connecting rod (33) being connected to the movable ring (34), the other end of one connecting rod (33) being installed with a connecting block (36), one end of another connecting rod (33) being connected to the fixed ring (35), the other end of the other connecting rod (33) being installed with a connecting block (36), and the two connecting rods (33) being arranged crosswise, and the connecting rods (33) being arranged in a plurality of groups; The connecting rods (33), the moving ring (34), the fixed block and the connecting block (36) are all symmetrically arranged at both ends of the support rod (31), and the multiple groups of connecting rods (33) are wound into a regular hexagon. The telescopic member (32) drives the moving ring (34) to move on the support rod (31), and the movement of the moving ring (34) drives the connecting rods (33) rotatably mounted on the moving ring (34) to swing, so that the multiple groups of connecting rods (33) are expanded or contracted.

3. A hot compress device for hemodialysis according to claim 1, characterized in that: A first electromagnet (51) is disposed at one end of the movement chamber (22), and the first electromagnet (51) is fixedly disposed on the fixing rod (5). A second electromagnet (61) is mounted on one side of the mounting block (6), and the first electromagnet (51) corresponds to the second electromagnet (61). When current in the same direction flows through the two electromagnets, the second electromagnet (61) drives the mounting platform to move toward the first electromagnet (51). When current in opposite directions flows through the two electromagnets, the second electromagnet (61) drives the mounting platform to move away from the first electromagnet (51).

4. A hot compress device for hemodialysis according to claim 3, characterized in that: The fixing rods (5) are arranged in the movement cavity (22), and the fixing rods (5) are symmetrically arranged in the movement cavity (22). Two groups of the fixing rods (5) are arranged, and the two groups of the fixing rods (5) penetrate the mounting block (6), and the mounting block (6) and the fixing rods (5) are slidably mounted.

5. A hot compress device for hemodialysis according to claim 1, characterized in that: A sensor (41) is provided below the fan (4), and the sensor (41) is used to detect the distance between the fan (4) and the film (221). When the distance between the fan (4) and the film (221) exceeds a set value, the sensor (41) controls the first electromagnet (51) and the second electromagnet (61) to be energized.

6. A hot compress device for hemodialysis according to claim 4, characterized in that: A connecting spring (74) is provided at one end of the mounting block (6) away from the fixing plate (73); the connecting spring (74) is symmetrically arranged below the mounting block (6); and the end of the connecting spring (74) away from the mounting block (6) is connected to a contact block (75).

7. A hot compress device for hemodialysis according to claim 6, characterized in that: The contact block (75) is in a stepped shape (751), and a circular arc surface (752) is provided on the stepped (751) contact block (75); when the mounting block (6) moves to the wound site of the patient, the circular arc surface (752) of the contact block (75) passes over the wound site of the patient after dialysis.

8. A hot compress device for hemodialysis according to claim 7, characterized in that: In the initial state, the control spring (71) and the connection spring (74) are in an uncompressed state, the contact block (75) and the support plate (72) are in the same horizontal position, and the contact block (75) is in contact with one side of the support plate (72).

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