Medical limb warmer

Abstract

The invention discloses a medical limb heat preservation device, and relates to the field of medical limb heat preservation, the medical limb heat preservation device comprises a mounting box, a heat preservation cylinder is fixedly connected in the mounting box, a plurality of inclined heating holes are formed in the heat preservation cylinder, a plurality of electric heating wires are fixedly connected in the mounting box, and a supporting frame and an airflow surging mechanism are fixedly connected in the heat preservation cylinder. According to the medical limb heat preservation device, through cooperation of the electric heating wire and the airflow surging mechanism, the heated air enters the heat preservation barrel at the initial speed through the inclined heating holes, annular flowing is formed, the heat preservation effect on the limbs of a patient is improved, meanwhile, the air is extruded through reciprocating motion of an extrusion plate, and therefore the heat preservation effect on the limbs of the patient is improved. The heating air in the heat preservation cylinder circularly flows, the heated air simulates blood flowing, flowing type heat preservation heating is achieved, blood circulation of limbs is further promoted, the heat preservation effect of the limbs is remarkably improved, and meanwhile the risk that the temperature is too high, and a patient is scalded is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical limb warming, and particularly to a medical limb warmer. Background Art

[0002] Soft tissue defects are likely to cause exposure of bones and joints, making wound repair difficult, while flap transfer repair is a good option. Finger replantation surgery has become increasingly perfect in the field of trauma in our country and has become an effective measure to save severed fingers and restore finger functions.

[0003] According to the applicant's understanding, replanted / transplanted tissues are denervated tissues and have lost their temperature regulation function, and are extremely vulnerable to external temperatures. If postoperative care is not emphasized, the replanted / transplanted tissues are still not easily viable. Currently, in the clinical situation, after finger replantation, to maintain a constant temperature of the replanted blood vessels, a 60w light bulb is used to continuously irradiate the replanted limb within 7 - 10 days after the operation, and the irradiation distance is 30 - 45 cm.

[0004] Application No. 201720261006.3 discloses a medical limb warmer, belonging to the technical field of heating appliances for human treatment. The medical limb warmer includes a bracket and a constant temperature box filled with heat-conducting oil. The lower end of the bracket is fixed on the constant temperature box. The constant temperature box is internally provided with a heating tube. The upper end of the bracket is fixed with a temperature control cover. The temperature control cover has an opening facing the patient's limb tissue. The temperature control cover includes an outer layer made of heat-insulating and insulating material, a hollow inner layer made of insulating material, and heat dissipation oil pipes located between the inner and outer layers. The bracket is fixed with an oil inlet pipe and an oil return pipe connecting the constant temperature box and the heat dissipation oil pipes. This medical limb warmer can ensure that the treatment part of the patient maintains the set optimal temperature to avoid interference from the external temperature. However, there are still some deficiencies in the implementation of this patent. During the heating process of the limb, the heating tube on the constant temperature box is used to locally heat the bottom of the patient's limb, and it is impossible to comprehensively heat the patient's limb. At the same time, during the heating process, only simple heat conduction heating is carried out, and it is impossible to heat the limb with a flowing temperature, resulting in a poor heating effect on the patient's limb. At the same time, when observing the surface of the limb, the temperature control cover needs to be opened, resulting in heat loss of the maintained temperature, and it is impossible to observe the limb while maintaining the insulation temperature, causing a poor effect on limb insulation. Summary of the Invention

[0005] The purpose of the present invention is to provide a medical limb warmer to solve the above-mentioned deficiencies in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solution: A medical limb warmer, comprising an installation box, wherein a heat preservation cylinder is fixedly connected inside the installation box, a plurality of inclined heating holes are opened on the heat preservation cylinder, a plurality of electric heating wires are fixedly connected inside the installation box, a support frame is fixedly connected inside the heat preservation cylinder, and a temperature sensor and a temperature control device for the electric heating wires are arranged on the outer surface of the heat preservation cylinder;

[0007] An air flow surging mechanism, which is arranged on the installation box and is used for surging the air heated by the electric heating wires;

[0008] An observation mechanism, which is arranged inside the heat preservation cylinder and is used for observing the surface of the patient's limb.

[0009] Further, the air flow surging mechanism includes a plurality of pressing plates slidably connected inside the installation box, the inner surfaces of the plurality of pressing plates are slidably connected with the outer surface of the heat preservation cylinder, a plurality of transmission columns slidably connected with the pressing plates are slidably connected inside the installation box, one end of the transmission column is fixedly connected with a first electric telescopic rod fixedly connected with the installation box through a connecting block, a first transmission rack is fixedly connected to the outer surface of the transmission column, a first transmission gear is meshed and connected to one side of the first transmission rack, a first transmission shaft rotatably connected with the installation box is fixedly sleeved in the middle of the first transmission gear, two second transmission gears are fixedly sleeved on the outer surface of the first transmission shaft, and a second transmission rack fixedly connected with the pressing plate is meshed and connected to the outer surface of the second transmission gear.

[0010] Further, the observation mechanism includes a threaded rod rotatably connected with the installation box, a transmission block slidably connected with the installation box is in threaded fit with the outer surface of the threaded rod, an installation ring is fixedly connected to one side of the transmission block, a functional cavity is opened on the installation ring, a transmission ring is rotatably connected inside the functional cavity, and a camera is fixedly connected to the inner surface of the transmission ring;

[0011] The outer surface of the transmission ring is in transmission connection with a transmission mechanism connected to the functional cavity, and the transmission mechanism is used for driving the transmission ring to rotate. The outer surface of the threaded rod is in transmission connection with a driving mechanism connected to the installation box, and the driving mechanism is used for driving the threaded rod to rotate.

[0012] Further, an LED light strip is fixedly connected to the inner surface of the transmission ring.

[0013] Further, the driving mechanism includes a driving motor fixedly connected with the heat preservation cylinder, the output end of the driving motor is fixedly connected with a driving shaft through a coupling, a first driving gear is fixedly sleeved on the outer surface of the driving shaft, and a second driving gear fixedly sleeved on the threaded rod is meshed and connected to the outer surface of the first driving gear.

[0014] Further, the transmission mechanism includes a transmission motor fixedly connected to the installation ring. The output end of the transmission motor is fixedly connected with a second transmission shaft rotatably connected to the installation ring through a coupling. A third transmission gear is fixedly sleeved on the outer surface of the second transmission shaft, and the outer surface of the third transmission gear is meshed with a transmission gear ring fixedly sleeved on the transmission ring.

[0015] Further, a sponge heat-insulating layer is fixedly connected to the outer surface of the installation box, and a sponge pad is fixedly connected to the top of the support frame.

[0016] Further, a heat-insulating cloth is fixedly connected to one side of the heat-insulating cylinder. Through holes are formed in the heat-insulating cloth, and elastic rubber rings are stitched to the inner surfaces of the through holes.

[0017] Compared with the prior art, a medical limb warmer provided by the present invention has the following beneficial effects:

[0018] (1) Through the cooperation of the electric heating wire and the air flow surging mechanism, the heated air enters the heat-insulating cylinder at an initial velocity through the inclined heating holes and forms a circular flow, improving the heat preservation effect on the patient's limb. At the same time, the reciprocating movement of the extrusion plate extrudes the air, causing the heated air in the heat-insulating cylinder to circulate, making the heated air simulate blood flow, realizing flow-type heat preservation heating, further promoting the blood circulation of the limb, significantly enhancing the limb heat preservation effect, and at the same time, through the cooperation of the temperature sensor and the temperature control device, controlling the heating temperature of the electric heating wire, effectively preventing the patient from being scalded due to excessive temperature.

[0019] (2) The driving mechanism drives the threaded rod to rotate, the threaded rod drives the installation ring to move, the installation ring drives the transmission ring and the camera to move, and at the same time, the transmission mechanism drives the transmission ring and the camera to rotate, enabling the camera to take a 360° comprehensive photograph of the patient's limb, so as to realize a comprehensive observation of the patient's limb surface while maintaining the heat preservation of the patient's limb, further improving the observation effect on the heat-preserved limb.

[0020] (3) The design of the through holes in the heat-insulating cloth with elastic rubber rings can tightly wrap the limb, reducing heat loss. The sponge heat-insulating layer and the sponge pad further enhance the heat preservation performance, greatly improving the heat preservation effect on the patient's limb. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0022] Figure 1 The first three-dimensional view of the external structure of the present invention;

[0023] Figure 2 The first three-dimensional view of the internal structure of the present invention;

[0024] Figure 3 The second three-dimensional view of the internal structure of the present invention;

[0025] Figure 4 The front view of the internal structure of the installation ring of the present invention;

[0026] Figure 5 For the present invention Figure 2 The enlarged view of A in;

[0027] Figure 6 For the present invention Figure 5 The enlarged view of B in.

[0028] Explanation of reference numerals in the drawings:

[0029] 1. Installation box; 2. Heat preservation cylinder; 3. Inclined heating hole; 4. Electric heating wire; 5. Support frame; 6. Sponge heat preservation layer; 11. Extrusion plate; 12. Transmission column; 13. First electric telescopic rod; 14. First transmission rack; 15. First transmission gear; 16. First transmission shaft; 17. Second transmission gear; 18. Second transmission rack; 21. Threaded rod; 22. Transmission block; 23. Installation ring; 24. Function cavity; 25. Transmission ring; 26. Camera; 27. LED light strip; 31. Driving motor; 32. Driving shaft; 33. First driving gear; 34. Second driving gear; 41. Transmission motor; 42. Second transmission shaft; 43. Third transmission gear; 44. Transmission gear ring. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] Please refer to Figures 1 - 6As shown in the figure, a medical limb warmer includes an installation box 1. Inside the installation box 1, a heat preservation cylinder 2 is fixedly connected. A plurality of inclined heating holes 3 are opened on the heat preservation cylinder 2. A plurality of electric heating wires 4 are fixedly connected inside the installation box 1. A support frame 5 is fixedly connected inside the heat preservation cylinder 2. A temperature sensor and a temperature control device for the electric heating wire 4 are arranged on the outer surface of the heat preservation cylinder 2. The temperature control device is a prior art, mainly controlling the heating power of the electric heating wire 4 through the temperature feedback by the temperature sensor. Therefore, no more details will be described here. It mainly controls the heating power of the electric heating wire 4. When the temperature sensor monitors that the internal temperature of the heat preservation cylinder 2 exceeds the set threshold, at this time, the electric heating wire 4 is timely controlled through the temperature control device to reduce the power of the electric heating wire 4 and prevent scalding the patient due to excessive temperature. An air flow surging mechanism is arranged inside the installation box 1, and the air flow surging mechanism is used to surge the air heated by the electric heating wire 4. An observation mechanism connected to the installation box 1 is arranged inside the heat preservation cylinder 2, and the observation mechanism is used to observe the surface of the patient's limb inside the heat preservation cylinder 2. A sponge heat preservation layer 6 is fixedly connected to the outer surface of the installation box 1. A sponge pad is fixedly connected to the top of the support frame 5. A heat preservation cloth is fixedly connected to one side of the heat preservation cylinder 2. Through holes are opened on the heat preservation cloth, and an elastic rubber ring is sewn on the inner surface of the through holes.

[0033] The patient's limb is passed through the through hole on the heat preservation cloth and placed on the support frame 5 inside the heat preservation cylinder 2. Then, it is tightened through the elastic rubber ring on the through hole to prevent heat loss. Subsequently, the electric heating wire 4 is used to heat the air. Then, in cooperation with the air flow surging mechanism inside the installation box 1, the heated air is driven to enter the heat preservation cylinder 2 through the inclined heating holes 3, so that the heated air has a certain initial velocity to enter the heat preservation cylinder 2 through the inclined heating holes 3. During the entry process, through the design of the inclined heating holes 3, the entering heated air flows along the inclined direction of the inclined heating holes 3, so as to realize the circular flow of the heated air inside the heat preservation cylinder 2 and improve the heat preservation and heating effect on the patient's limb. Through the surging of the air by the air flow surging mechanism, the air is promoted to flow inside the heat preservation cylinder 2, and the flowing hot air simulates the heat preservation of the blood flow of the human limb, thereby further improving the heat preservation effect on the patient's limb. At the same time, the limb inside the heat preservation cylinder 2 is observed comprehensively through the observation mechanism, which is convenient for medical staff to observe the patient's limb comprehensively while maintaining heat preservation.

[0034] Embodiment Two

[0035] On the basis of Embodiment One, please refer to Figure 2 、 Figure 5 and Figure 6As shown in the figure, the air flow surging mechanism includes a plurality of pressing plates 11 slidably connected in the installation box 1. The inner surfaces of the plurality of pressing plates 11 are slidably connected to the outer surface of the heat preservation cylinder 2. A plurality of transmission columns 12 slidably connected to the pressing plates 11 are slidably connected in the installation box 1. One end of the transmission column 12 is fixedly connected to a first electric telescopic rod 13 fixedly connected to the installation box 1 through a connecting block. A first transmission rack 14 is fixedly connected to the outer surface of the transmission column 12. A first transmission gear 15 is meshed and connected to one side of the first transmission rack 14. A first transmission shaft 16 rotatably connected to the installation box 1 is fixedly sleeved in the middle of the first transmission gear 15. Two second transmission gears 17 are fixedly sleeved on the outer surface of the first transmission shaft 16. A second transmission rack 18 fixedly connected to the pressing plate 11 is meshed and connected to the outer surface of the second transmission gear 17.

[0036] The first electric telescopic rod 13 drives the transmission column 12 to move reciprocally. The transmission column 12 drives a plurality of first transmission racks 14 to move reciprocally. The first transmission rack 14 drives the first transmission gear 15 to rotate reciprocally. The first transmission gear 15 drives the first transmission shaft 16 to rotate. The first transmission shaft 16 drives two second transmission gears 17 to rotate. The two second transmission gears 17 respectively drive the upper and lower second transmission racks 18 to move, so that the two second transmission racks 18 reciprocally approach and move away from each other. During the process of approaching each other, the second transmission rack 18 drives the two pressing plates 11 to approach each other. At this time, the two pressing plates 11 start to squeeze the air between the two pressing plates 11. At this time, the heated air obtains a certain initial velocity. Subsequently, the heated air is blown into the heat preservation cylinder 2 through the middle inclined heating holes 3 and the electric heating wire 4. Due to the design of the inclined heating holes 3, the heated air circularly heats the limb. At the same time, during the squeezing process towards the middle, the pressing plates 11 suck out the air in the heat preservation cylinder 2 through the inclined heating holes 3 on both sides, so as to realize the circular flow of the air flow in the heat preservation cylinder 2. When driving the two pressing plates 11 to move away from each other, at this time, the pressing plates 11 squeeze the air on both sides, and the reciprocating squeezing makes the hot air in the heat preservation cylinder 2 flow. At the same time, when the flowing air passes through the inclined heating holes 3, the electric heating wire 4 fully heats the air. At the same time, the flowing hot air conducts flow-type heat preservation heating on the surface temperature of the limb, simulating the flow of limb blood and further promoting the heat preservation effect of the limb.

[0037] Embodiment III

[0038] On the basis of Embodiment I, please refer to Figure 2 、 Figure 3 and Figure 4As shown in the figure, the observation mechanism includes a threaded rod 21 rotatably connected to the installation box 1. A transmission block 22 slidably connected to the installation box 1 is threadedly engaged with the outer surface of the threaded rod 21. One side of the transmission block 22 is fixedly connected with an installation ring 23. A functional cavity 24 is formed in the installation ring 23. A transmission ring 25 is rotatably connected in the functional cavity 24. A camera 26 is fixedly connected to the inner surface of the transmission ring 25. An LED light bar 27 is fixedly connected to the inner surface of the transmission ring 25;

[0039] The outer surface of the threaded rod 21 is drivingly connected with a driving mechanism connected to the installation box 1. The driving mechanism includes a driving motor 31 fixedly connected to the heat preservation cylinder 2. The driving motor 31 is controlled by a PLC programming program, and the forward and reverse rotation and rotation angle of the driving motor 31 can be controlled. The output end of the driving motor 31 is fixedly connected with a driving shaft 32 through a coupling. A first driving gear 33 is fixedly sleeved on the outer surface of the driving shaft 32. The outer surface of the first driving gear 33 is meshed with a second driving gear 34 fixedly sleeved on the threaded rod 21. By driving the driving shaft 32 to rotate by the driving motor 31, the threaded rod 21 is driven to rotate by the driving shaft 32 through the first driving gear 33 and the second driving gear 34;

[0040] The outer surface of the transmission ring 25 is drivingly connected with a transmission mechanism connected to the functional cavity 24. The transmission mechanism includes a transmission motor 41 fixedly connected to the installation ring 23. The transmission motor 41 is controlled by a PLC programming program, and the forward and reverse rotation and rotation angle of the transmission motor 41 can be controlled. The output end of the transmission motor 41 is fixedly connected with a second transmission shaft 42 rotatably connected to the installation ring 23 through a coupling. A third transmission gear 43 is fixedly sleeved on the outer surface of the second transmission shaft 42. The outer surface of the third transmission gear 43 is meshed with a transmission gear ring 44 fixedly sleeved on the transmission ring 25. By driving the second transmission shaft 42 to rotate by the transmission motor 41, the transmission gear ring 44 is driven to rotate by the second transmission shaft 42 through the third transmission gear 43, and the transmission gear ring 44 drives the transmission ring 25 to rotate;

[0041] The driving mechanism drives the threaded rod 21 to move. The threaded rod 21 drives the transmission block 22 and the installation ring 23 to move. At the same time, the surface of the limb is irradiated by the LED light bar 27 on the inner surface of the installation ring 23. Then, the camera 26 on the transmission ring 25 of the installation ring 23 is used to photograph and observe the patient's limb. While observing, the transmission mechanism drives the transmission ring 25 to rotate. The transmission ring 25 drives the camera 26 to rotate. The camera 26 conducts a 360° comprehensive photographing and observation of the patient's limb, so as to realize a comprehensive observation of the patient's limb surface while maintaining the heat preservation of the patient's limb, and further improve the observation effect of the heat-preserved limb.

[0042] Working principle: The first electric telescopic rod 13 drives the transmission column 12 to move reciprocally. The transmission column 12 drives multiple first transmission racks 14 to move reciprocally. The first transmission rack 14 drives the first transmission gear 15 to rotate reciprocally. The first transmission gear 15 drives the first transmission shaft 16 to rotate. The first transmission shaft 16 drives two second transmission gears 17 to rotate. The two second transmission gears 17 respectively drive the upper and lower second transmission racks 18 to move, causing the two second transmission racks 18 to reciprocally approach and move away from each other. During the process of approaching each other, the second transmission rack 18 drives the two pressing plates 11 to approach each other. At this time, the two pressing plates 11 start to squeeze the air between the two pressing plates 11. At this time, the heated air obtains a certain initial velocity. Subsequently, the heated air is blown into the heat preservation cylinder 2 through the middle inclined heating holes 3 and the electric heating wire 4. Due to the design of the inclined heating holes 3, the heated air heats the limb in a circular manner. At the same time, during the squeezing process towards the middle, the pressing plates 11 suck out the air in the heat preservation cylinder 2 through the inclined heating holes 3 on both sides, thereby realizing the circular flow of the air flow in the heat preservation cylinder 2. When driving the two pressing plates 11 to move away from each other, at this time, the pressing plates 11 squeeze the air on both sides. By squeezing in this reciprocating manner, the hot air in the heat preservation cylinder 2 flows. At the same time, when the flowing air passes through the inclined heating holes 3, the electric heating wire 4 fully heats the air. At the same time, the flowing hot air conducts flowing heat preservation heating on the surface temperature of the limb, simulating the blood flow of the limb, and further promoting the heat preservation effect of the limb.

[0043] The driving mechanism drives the threaded rod 21 to move. The threaded rod 21 drives the transmission block 22 and the mounting ring 23 to move. At the same time, the LED light strip 27 on the inner surface of the mounting ring 23 irradiates the surface of the limb. Subsequently, the camera 26 on the transmission ring 25 of the mounting ring 23 takes pictures and observes the patient's limb. While observing, the transmission mechanism drives the transmission ring 25 to rotate. The transmission ring 25 drives the camera 26 to rotate. The camera 26 takes 360° comprehensive pictures and observations of the patient's limb, thereby realizing a comprehensive observation of the surface of the patient's limb while maintaining heat preservation for the patient's limb, and further improving the observation effect of the heat-preserved limb.

[0044] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A medical limb warmer, characterized in that: Comprising: An installation box (1), fixedly connected with a heat preservation cylinder (2) inside the installation box (1), multiple inclined heating holes (3) are opened on the heat preservation cylinder (2), multiple electric heating wires (4) are fixedly connected inside the installation box (1), a support frame (5) is fixedly connected inside the heat preservation cylinder (2), and a temperature sensor and a temperature control device of the electric heating wire (4) are arranged on the outer surface of the heat preservation cylinder (2); An air flow surging mechanism, which is arranged on the installation box (1) and is used for surging the air heated by the electric heating wire (4); An observation mechanism, which is arranged inside the heat preservation cylinder (2) and is used for observing the surface of the patient's limb.

2. The medical limb warmer according to claim 1, wherein, The air flow surging mechanism includes multiple pressing plates (11) slidably connected inside the installation box (1), the inner surfaces of the multiple pressing plates (11) are slidably connected with the outer surface of the heat preservation cylinder (2), multiple transmission columns (12) slidably connected with the pressing plates (11) are slidably connected inside the installation box (1), one end of the transmission column (12) is fixedly connected with a first electric telescopic rod (13) fixedly connected with the installation box (1) through a connecting block, a first transmission rack (14) is fixedly connected to the outer surface of the transmission column (12), a first transmission gear (15) is meshed and connected to one side of the first transmission rack (14), a first transmission shaft (16) rotatably connected with the installation box (1) is fixedly sleeved in the middle of the first transmission gear (15), two second transmission gears (17) are fixedly sleeved on the outer surface of the first transmission shaft (16), and a second transmission rack (18) fixedly connected with the pressing plate (11) is meshed and connected to the outer surface of the second transmission gear (17).

3. The medical limb warmer according to claim 1, characterized in that, The observation mechanism includes a threaded rod (21) rotatably connected with the installation box (1), a transmission block (22) slidably connected with the installation box (1) is in threaded fit with the outer surface of the threaded rod (21), an installation ring (23) is fixedly connected to one side of the transmission block (22), a functional cavity (24) is opened on the installation ring (23), a transmission ring (25) is rotatably connected inside the functional cavity (24), and a camera (26) is fixedly connected to the inner surface of the transmission ring (25); The outer surface of the transmission ring (25) is in transmission connection with a transmission mechanism connected with the functional cavity (24), and the transmission mechanism is used for driving the transmission ring (25) to rotate. The outer surface of the threaded rod (21) is in transmission connection with a driving mechanism connected with the installation box (1), and the driving mechanism is used for driving the threaded rod (21) to rotate.

4. The medical limb warmer according to claim 3, wherein, An LED light strip (27) is fixedly connected to the inner surface of the transmission ring (25).

5. The medical limb warmer according to claim 4, characterized in that, The driving mechanism includes a driving motor (31) fixedly connected with the heat preservation cylinder (2), the output end of the driving motor (31) is fixedly connected with a driving shaft (32) through a coupling, a first driving gear (33) is fixedly sleeved on the outer surface of the driving shaft (32), and a second driving gear (34) fixedly sleeved on the threaded rod (21) is meshed and connected to the outer surface of the first driving gear (33).

6. The medical limb warmer according to claim 4, characterized in that, The transmission mechanism includes a transmission motor (41) fixedly connected to the mounting ring (23). The output end of the transmission motor (41) is fixedly connected by a coupling to a second transmission shaft (42) rotatably connected to the mounting ring (23). A third transmission gear (43) is fixedly sleeved on the outer surface of the second transmission shaft (42), and the outer surface of the third transmission gear (43) is meshed with a transmission gear ring (44) fixedly sleeved on the transmission ring (25).

7. The medical limb warmer according to claim 1, characterized in that, A sponge heat-insulating layer (6) is fixedly connected to the outer surface of the mounting box (1), and a sponge pad is fixedly connected to the top of the support frame (5).

8. The medical limb warmer according to claim 1, characterized in that, A heat-insulating cloth is fixedly connected to one side of the heat-insulating cylinder (2). Through holes are formed in the heat-insulating cloth, and elastic rubber rings are sewn on the inner surfaces of the through holes.

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