Medical limb warmer

Abstract

This invention discloses a medical limb warmer, relating to the field of medical limb warming. It includes an installation box containing a warming cylinder with multiple inclined heating holes. Multiple electric heating wires are fixedly connected inside the installation box, and a support frame and an airflow mechanism are fixedly connected inside the warming cylinder. The airflow mechanism agitates the heated air. This medical limb warmer, through the cooperation of the electric heating wires and the airflow mechanism, allows heated air to enter the warming cylinder at an initial velocity through the inclined heating holes, forming a circular flow. This improves the warming effect on the patient's limb. Simultaneously, the reciprocating motion of the extrusion plate compresses the air, causing the heated air inside the warming cylinder to circulate, mimicking blood flow and achieving fluidized warming. This further promotes blood circulation in the limb, significantly improving the warming effect while effectively preventing excessive heat and the risk of burns to the patient.

Description

Technical Field

[0001] This invention relates to medical limb warming technology, specifically to a medical limb warmer. Background Technology

[0002] Soft tissue defects often result in exposed bone and joints, making wound repair difficult. Skin flap transfer is a good option for repair. Finger replantation surgery has become increasingly sophisticated in the field of trauma surgery in my country, serving as an effective measure to save severed fingers and restore finger function.

[0003] According to the applicant, the replanted / transplanted tissue is denervated and has lost its temperature regulation function, making it highly susceptible to external temperature fluctuations. Without proper postoperative care, the replanted / transplanted tissue is unlikely to survive. Currently, in clinical practice, to maintain a constant temperature in the replanted blood vessels after finger replantation, a 60W light bulb is used to continuously irradiate the replanted limb for 7-10 days post-surgery at a distance of 30-45cm.

[0004] Application No. 201720261006.3 discloses a medical limb warmer, belonging to the technical field of heating devices for human treatment. This medical limb warmer includes a support frame and a constant temperature chamber containing heat-conducting oil. The lower end of the support frame is fixed to the constant temperature chamber, which contains a heating tube. The upper end of the support frame is fixed to a temperature control cover, which has an opening facing the patient's limb tissue. The temperature control cover includes an outer layer made of thermal insulation material, a perforated inner layer made of insulation material, and a heat dissipation oil pipe located between the inner and outer layers. An oil outlet and return pipe connecting the constant temperature chamber and the heat dissipation oil pipe are fixed to the support frame. This medical limb warmer can ensure that the patient's treatment area maintains the set optimal temperature to avoid interference from external temperatures. However, there are still some shortcomings in its implementation. During the heating process, the patent uses a heating tube on a constant temperature chamber to locally heat the bottom of the patient's limb, which cannot heat the limb comprehensively. At the same time, the heating process is only simple heat conduction heating, and cannot heat the limb through the flow of heat, resulting in poor heating effect. In addition, when observing the limb surface, the temperature control cover needs to be opened, which causes the heat to be lost. It is impossible to observe the limb while maintaining the temperature, resulting in poor limb warming effect. Summary of the Invention

[0005] The purpose of this invention is to provide a medical limb warmer to address the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a medical limb warmer, comprising an installation box, an insulation cylinder fixedly connected inside the installation box, a plurality of inclined heating holes being provided on the insulation cylinder, a plurality of electric heating wires fixedly connected inside the installation box, a support frame fixedly connected inside the insulation cylinder, and a temperature sensor and a temperature control device for the electric heating wires being provided on the outer surface of the insulation cylinder.

[0007] An airflow surging mechanism is mounted on a mounting box and is used to surge the air heated by the electric heating wire.

[0008] An observation device is installed inside an insulated container and is used to observe the surface of a patient's limb.

[0009] Furthermore, the airflow surging mechanism includes multiple extrusion plates slidably connected within the mounting box. The inner surfaces of the multiple extrusion plates are slidably connected to the outer surface of the insulation cylinder. Multiple transmission columns slidably connected to the extrusion plates are slidably connected within the mounting box. One end of each transmission column is fixedly connected to a first electric telescopic rod fixedly connected to the mounting box via a connecting block. A first transmission rack is fixedly connected to the outer surface of the transmission column. A first transmission gear is meshed with one side of the first transmission rack. A first transmission shaft rotatably connected to the mounting 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. A second transmission rack fixedly connected to the extrusion plates is meshed with the outer surface of the second transmission gear.

[0010] Furthermore, the observation mechanism includes a threaded rod rotatably connected to the mounting box, a transmission block slidably connected to the mounting box is threadedly connected to the outer surface of the threaded rod, a mounting ring is fixedly connected to one side of the transmission block, a functional cavity is opened on the mounting 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 connected to a transmission mechanism that is connected to the functional cavity. The transmission mechanism is used to drive the transmission ring to rotate. The outer surface of the threaded rod is connected to a drive mechanism that is connected to the mounting box. The drive mechanism is used to drive the threaded rod to rotate.

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

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

[0014] Furthermore, the transmission mechanism includes a transmission motor fixedly connected to the mounting ring, and the output end of the transmission motor is fixedly connected to a second transmission shaft rotatably connected to the mounting ring via a coupling. A third transmission gear is fixedly sleeved on the outer surface of the second transmission shaft, and a transmission gear ring fixedly sleeved on the outer surface of the third transmission gear is engaged with the transmission ring.

[0015] Furthermore, a sponge insulation layer is fixedly connected to the outer surface of the mounting box, and a sponge pad is fixedly connected to the top of the support frame.

[0016] Furthermore, an insulating cloth is fixedly connected to one side of the insulating cylinder, and a through hole is provided on the insulating cloth. An elastic rubber ring is sewn onto the inner surface of the through hole.

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

[0018] (1) By combining the electric heating wire with the airflow surging mechanism, heated air enters the heat preservation cylinder at an initial velocity through the inclined heating hole, forming a circular flow, which improves the heat preservation effect on the patient's limb. At the same time, the reciprocating motion of the extrusion plate compresses the air, causing the heated air in the heat preservation cylinder to circulate, making the heated air simulate blood flow, realizing flow-type heat preservation and heating, further promoting blood circulation in the limb, significantly improving the heat preservation effect on the limb. At the same time, by combining the temperature sensor and the temperature control device, the heating temperature of the electric heating wire is controlled, effectively preventing the patient from being burned due to excessive temperature.

[0019] (2) The threaded rod is driven to rotate by the drive mechanism, the threaded rod drives the mounting ring to move, the mounting 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, so that the camera can take a 360° comprehensive picture and observation of the patient's limbs, thereby achieving a comprehensive observation of the patient's limb surface while maintaining the temperature of the limbs, further improving the observation effect of the temperature-maintained limbs.

[0020] (3) The heat insulation cloth with through holes and elastic rubber ring design can tightly wrap the limbs and reduce heat loss. The sponge insulation layer and sponge pad further enhance the heat insulation and greatly improve the heat insulation effect on the patient's limbs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a first perspective view of the external structure of the present invention;

[0023] Figure 2 This is a first perspective view of the internal structure of the present invention;

[0024] Figure 3 This is a second perspective view of the internal structure of the present invention;

[0025] Figure 4 This is a front view of the internal structure of the mounting ring of the present invention;

[0026] Figure 5 For the present invention Figure 2 Enlarged view of A in the middle;

[0027] Figure 6 For the present invention Figure 5 A magnified view of B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Mounting box; 2. Insulation cylinder; 3. Inclined heating hole; 4. Electric heating wire; 5. Support frame; 6. Sponge insulation 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. Mounting ring; 24. Functional cavity; 25. Transmission ring; 26. Camera; 27. LED light strip; 31. Drive motor; 32. Drive shaft; 33. First drive gear; 34. Second drive gear; 41. Transmission motor; 42. Second transmission shaft; 43. Third transmission gear; 44. Transmission gear ring. Detailed Implementation

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

[0031] Example 1

[0032] Please see Figures 1-6As shown, a medical limb warmer includes a mounting box 1, an insulation cylinder 2 fixedly connected inside the mounting box 1, multiple inclined heating holes 3 on the insulation cylinder 2, multiple electric heating wires 4 fixedly connected inside the mounting box 1, a support frame 5 fixedly connected inside the insulation cylinder 2, and a temperature sensor and a temperature control device for the electric heating wires 4 disposed on the outer surface of the insulation cylinder 2. The temperature control device is existing technology, mainly controlling the heating power of the electric heating wires 4 through the temperature feedback from the temperature sensor, and therefore will not be described in detail here. It mainly controls the heating power of the electric heating wires 4. When the temperature sensor detects that the internal temperature of the insulation cylinder 2 exceeds a set threshold, the heating wires 4 are heated. The temperature control device controls the electric heating wire 4 in a timely manner, reducing the power of the electric heating wire 4 to prevent the temperature from being too high and causing burns to the patient. An airflow surging mechanism is set inside the installation box 1 to surge the air heated by the electric heating wire 4. An observation mechanism connected to the installation box 1 is set inside the insulation cylinder 2 to observe the surface of the patient's limb inside the insulation cylinder 2. A sponge insulation 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, and an insulation cloth is fixedly connected to one side of the insulation cylinder 2. The insulation cloth has through holes, and an elastic rubber ring is sewn to the inner surface of the through holes.

[0033] The patient's limb is inserted through a hole in the insulating cloth and placed onto a support frame 5 inside the insulating cylinder 2. It is then secured with an elastic rubber ring through the hole to prevent heat loss. An electric heating wire 4 heats the air, which, in conjunction with an airflow mechanism within the mounting box 1, is propelled through an inclined heating hole 3 into the insulating cylinder 2. This initial velocity of the heated air entering the cylinder 2 via the inclined heating hole 3 creates a circular flow of heated air within the insulating cylinder 2, enhancing the heat preservation effect on the patient's limb. The airflow mechanism further amplifies this effect by simulating blood flow within the limb, thus improving the overall heat preservation. Simultaneously, an observation mechanism allows for comprehensive observation of the limb within the insulating cylinder 2, enabling medical personnel to maintain the limb's temperature while ensuring proper insulation.

[0034] Example 2

[0035] Based on Example 1, please refer to Figure 2 , Figure 5 and Figure 6As shown, the airflow surging mechanism includes multiple extrusion plates 11 slidably connected within the mounting box 1. The inner surfaces of the multiple extrusion plates 11 are slidably connected to the outer surface of the insulation cylinder 2. Multiple transmission columns 12 slidably connected to the extrusion plates 11 are slidably connected within the mounting box 1. One end of each transmission column 12 is fixedly connected to a first electric telescopic rod 13 fixedly connected to the mounting box 1 via 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 with one side of the first transmission rack 14. A first transmission shaft 16 rotatably connected to the mounting 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 extrusion plates 11 is meshed with the outer surface of the second transmission gear 17.

[0036] The first electric telescopic rod 13 drives the transmission column 12 to reciprocate, which in turn drives multiple first transmission racks 14 to reciprocate. Each first transmission rack 14 drives a first transmission gear 15 to reciprocate, which in turn drives a first transmission shaft 16 to rotate. The first transmission shaft 16 then drives two second transmission gears 17 to rotate. Each second transmission gear 17 drives two upper and lower second transmission racks 18 to move, causing the racks to reciprocate by approaching and moving away from each other. During the approaching process, the racks 18 also drive two extrusion plates 11 to approach each other, at which point the extrusion plates 11 begin to compress the air between them. The heated air gains an initial velocity and then passes through the middle... The inclined heating holes 3 and electric heating wires 4 heat the air blown into the insulation cylinder 2. Due to the design of the inclined heating holes 3, the heated air is heated in a ring shape on the limb. At the same time, during the squeezing process towards the center, the squeezing plate 11 draws out the air in the insulation cylinder 2 through the inclined heating holes 3 on both sides, thereby realizing the airflow in a ring shape in the insulation cylinder 2. When the two squeezing plates 11 are driven to move away from each other, the squeezing plates 11 squeeze the air on both sides. The squeezing is repeated in sequence, which makes the hot air in the insulation cylinder 2 flow. At the same time, when the flowing air passes through the inclined heating holes 3, the electric heating wires 4 fully heat the air. The flowing hot air is heated on the surface of the limb in a flowing heat preservation manner, simulating the flow of blood in the limb, and further promoting the heat preservation effect of the limb.

[0037] Example 3

[0038] Based on Example 1, please refer to Figure 2 , Figure 3 and Figure 4As shown, the observation mechanism includes a threaded rod 21 rotatably connected to the mounting box 1. The outer surface of the threaded rod 21 is threadedly connected to a transmission block 22 slidably connected to the mounting box 1. A mounting ring 23 is fixedly connected to one side of the transmission block 22. A functional cavity 24 is opened on the mounting ring 23. A transmission ring 25 is rotatably connected inside the functional cavity 24. A camera 26 is fixedly connected to the inner surface of the transmission ring 25. An LED light strip 27 is fixedly connected to the inner surface of the transmission ring 25.

[0039] The outer surface of the threaded rod 21 is connected to a drive mechanism that is connected to the mounting box 1. The drive mechanism includes a drive motor 31 that is fixedly connected to the insulation cylinder 2. The drive motor 31 is controlled by a PLC programming program, which can control the forward and reverse rotation and the rotation angle of the drive motor 31. The output end of the drive motor 31 is fixedly connected to a drive shaft 32 through a coupling. A first drive gear 33 is fixedly sleeved on the outer surface of the drive shaft 32. A second drive gear 34 that is fixedly sleeved on the outer surface of the first drive gear 33 is meshed with the threaded rod 21. The drive motor 31 drives the drive shaft 32 to rotate, and the drive shaft 32 drives the threaded rod 21 to rotate through the first drive gear 33 and the second drive gear 34.

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

[0041] The threaded rod 21 is moved by the drive mechanism, which in turn moves the transmission block 22 and the mounting ring 23. At the same time, the surface of the limb is illuminated by the LED light strip 27 on the inner surface of the mounting ring 23. Then, the patient's limb is photographed and observed by the camera 26 on the transmission ring 25 of the mounting ring 23. During the observation, the transmission ring 25 is rotated by the transmission mechanism, which in turn rotates the camera 26. The camera 26 performs a 360° comprehensive photographic observation of the patient's limb, thereby achieving a comprehensive observation of the patient's limb surface while maintaining its temperature, further improving the observation effect of the insulated limb.

[0042] Working principle: The first electric telescopic rod 13 drives the transmission column 12 to reciprocate. The transmission column 12 drives multiple first transmission racks 14 to reciprocate. The first transmission racks 14 drive the first transmission gear 15 to reciprocate. 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 drive the upper and lower second transmission racks 18 to move, causing the two second transmission racks 18 to reciprocate by approaching and moving away from each other. During the approaching process, the second transmission racks 18 drive the two extrusion plates 11 to approach each other. At this time, the two extrusion plates 11 begin to compress the air between them. The heated air gains a certain initial velocity and then passes through... The heated air is blown into the insulation cylinder 2 through the inclined heating hole 3 and the electric heating wire 4. Due to the design of the inclined heating hole 3, the heated air is heated in a ring shape on the limb. At the same time, during the squeezing process towards the center, the squeezing plate 11 draws out the air in the insulation cylinder 2 through the inclined heating holes 3 on both sides, thereby realizing the airflow in a ring shape in the insulation cylinder 2. When the two squeezing plates 11 are driven to move away from each other, the squeezing plates 11 squeeze the air on both sides. The squeezing is repeated in sequence, which makes the hot air in the insulation cylinder 2 flow. At the same time, when the flowing air passes through the inclined heating hole 3, it is fully heated by the electric heating wire 4. The flowing hot air is heated on the surface of the limb in a flowing heat preservation manner, simulating the flow of blood in the limb, and further promoting the heat preservation effect of the limb.

[0043] The threaded rod 21 is moved by the drive mechanism, which in turn moves the transmission block 22 and the mounting ring 23. At the same time, the surface of the limb is illuminated by the LED light strip 27 on the inner surface of the mounting ring 23. Then, the patient's limb is photographed and observed by the camera 26 on the transmission ring 25 of the mounting ring 23. During the observation, the transmission ring 25 is rotated by the transmission mechanism, which in turn rotates the camera 26. The camera 26 performs a 360° comprehensive photographic observation of the patient's limb, thereby achieving a comprehensive observation of the patient's limb surface while maintaining its temperature, further improving the observation effect of the insulated limb.

[0044] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A medical limb warmer, characterized in that: include: The installation box (1) has a heat insulation cylinder (2) fixedly connected inside it. The heat insulation cylinder (2) has multiple inclined heating holes (3) on it. The installation box (1) has multiple electric heating wires (4) fixedly connected inside it. The heat insulation cylinder (2) has a support frame (5) fixedly connected inside it. The outer surface of the heat insulation cylinder (2) is provided with a temperature sensor and a temperature control device for the electric heating wires (4). An airflow surging mechanism is provided on the mounting box (1) and is used to surge the air heated by the electric heating wire (4); An observation device is set inside an insulated container (2) and is used to observe the surface of the patient's limbs. The airflow surging mechanism includes multiple extrusion plates (11) slidably connected inside the mounting box (1). The inner surfaces of the multiple extrusion plates (11) are slidably connected to the outer surface of the insulation cylinder (2). Multiple transmission columns (12) slidably connected to the extrusion plates (11) are slidably connected inside the mounting box (1). One end of the transmission column (12) is fixedly connected to a first electric telescopic rod (13) fixedly connected to the mounting box (1) via 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 on one side of the first transmission rack (14). A first transmission shaft (16) rotatably connected to the mounting 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 extrusion plate (11) is meshed on the outer surface of the second transmission gear (17).

2. A medical limb warmer according to claim 1, characterized in that, The observation mechanism includes a threaded rod (21) rotatably connected to the mounting box (1). The outer surface of the threaded rod (21) is threadedly connected to a transmission block (22) slidably connected to the mounting box (1). A mounting ring (23) is fixedly connected to one side of the transmission block (22). A functional cavity (24) is opened on the mounting ring (23). A transmission ring (25) is rotatably connected inside the functional cavity (24). A camera (26) is fixedly connected to the inner surface of the transmission ring (25). The outer surface of the transmission ring (25) is connected to a transmission mechanism that is connected to the functional cavity (24). The transmission mechanism is used to drive the transmission ring (25) to rotate. The outer surface of the threaded rod (21) is connected to a drive mechanism that is connected to the mounting box (1). The drive mechanism is used to drive the threaded rod (21) to rotate.

3. A medical limb warmer according to claim 2, characterized in that, An LED light strip (27) is fixedly connected to the inner surface of the transmission ring (25).

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

5. A medical limb warmer according to claim 2, 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 to a second transmission shaft (42) rotatably connected to the mounting ring (23) via a coupling. A third transmission gear (43) is fixedly sleeved on the outer surface of the second transmission shaft (42). A transmission gear ring (44) fixedly sleeved on the outer surface of the third transmission gear (43) is meshed with a transmission gear ring (44) fixedly sleeved on the transmission ring (25).

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

7. A medical limb warmer according to claim 1, characterized in that, The insulation cylinder (2) is fixedly connected to one side with an insulation cloth, and the insulation cloth has a through hole, and an elastic rubber ring is sewn to the inner surface of the through hole.

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