Patient warm-keeping device for operating room

Abstract

The invention relates to the technical field of operating room warm keeping, in particular to a patient warm keeping device for an operating room. Comprising an operating table, a water tank is fixedly connected to the lower surface of the operating table, a heating pipe is arranged in the water tank, a water pump is fixedly connected to the outer wall of the water tank, a water pipe is fixedly connected to the output end of the water pump, and the outer wall of the water pipe is fixedly connected to the interior of the operating table; the upper surface of the operating table is fixedly connected with a fixing frame, the lower surface of the operating table is fixedly connected with a temperature sensor, and the bottom end of the operating table is provided with a supporting assembly. According to the patient warm-keeping device for the operating room, heated water in the water tank can be driven to enter the water pipe by starting the water pump, the water pipe is wound in the operating table, heating and heat preservation can be conducted on the operating table through water circulation, and effective warm keeping can be conducted on a patient during an operation in cooperation with the heat preservation blanket.

Description

Technical Field

[0001] This invention relates to the field of operating room heating technology, and more particularly to a patient heating device for operating rooms. Background Technology

[0002] To inhibit bacterial growth, operating rooms are usually kept at a relatively cold temperature, which is far below the body's comfort temperature. Low body temperature can cause vasoconstriction, making wounds more susceptible to infection and even leading to coagulation disorders. Using professional operating room warming devices is the most effective and scientific means of preventing perioperative hypothermia and its complications.

[0003] Patent document CN214962839U discloses a patient warming device for operating rooms, comprising a front garment and a back garment. A front sleeve and a back sleeve are fixedly connected to the top of one side of each of the front and back garments, respectively. Insulating components are fixedly connected to opposite sides of both the front and back garments. The two insulating components have identical structures and each includes an insulating body. The beneficial effect of this patient warming device for operating rooms is that, through the combined action of the front garment, back garment, front sleeve, and back sleeve, the surgical site can be easily unfolded during surgery. The first and second ties can secure the front garment, back garment, front sleeve, and back sleeve, allowing the garment to be worn on the patient. The combined action of the insulating body, air inlet, cavity, and through-hole ensures that the front and back garments evenly warm the patient's body.

[0004] When using the above technology, the following technical problems were found in the existing technology: only covering the patient's body for warmth without active heating may result in poor warmth retention. Therefore, a patient warming device for operating rooms is designed to provide another technical solution to the above technical problems. Summary of the Invention

[0005] Therefore, it is necessary to provide a patient warming device for operating rooms to address the above-mentioned technical problems, which may result in poor warming effect if the device only covers the patient's body without active heating.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A patient warming device for operating rooms includes an operating table. A water tank is fixedly connected to the lower surface of the operating table, and a heating pipe is installed inside the water tank. A water pump is fixedly connected to the outer wall of the water tank, and a water pipe is fixedly connected to the output end of the water pump. The outer wall of the water pipe is fixedly connected to the inside of the operating table. A vent is provided inside the operating table. A pad is provided on the upper surface of the operating table, and the outer wall of the pad is placed inside the vent. A fixed frame is fixedly connected to the upper surface of the operating table, and a warming blanket is fixedly connected to the outer wall of the fixed frame. A limiting frame is fixedly connected to the outer wall of the operating table, and the inside of the limiting frame passes through the surface of the warming blanket. A support column is fixedly connected to the lower surface of the operating table, and a fixed plate is fixedly connected to the lower surface of the support column. A second spring is sleeved on the outer wall of the support column, and the top end of the second spring is fixedly connected to the lower surface of the operating table. A sliding frame is fixedly connected to the bottom end of the second spring, and a limiting plate is fixedly connected to the lower surface of the sliding frame. A temperature sensor is fixedly connected to the lower surface of the operating table, and a support assembly is provided at the bottom of the operating table.

[0007] In a preferred embodiment of the operating room patient warming device provided by the present invention, the support assembly includes a support frame, which is slidably connected to the bottom of the operating table. A push plate is slidably connected to the inside of the operating table. Sliding columns are fixedly connected to both sides of the lower surface of the push plate. A spring is sleeved on the outer wall of the sliding column. The top end of the spring is fixedly connected to the inside of the operating table. A slider is fixedly connected to the bottom end of the spring. A rotating shaft is fixedly connected to the inside of the slider. A rotating plate is rotatably connected to the outer wall of the rotating shaft. A connecting shaft is rotatably connected to the inside of the rotating plate. A locking pin is fixedly connected to the outer wall of the connecting shaft. The outer wall of the locking pin is locked inside the support frame.

[0008] In a preferred embodiment of the operating room patient warming device provided by the present invention, the interior of the warming blanket is provided with a plurality of connecting frames, the outer wall of the connecting frames is fixedly connected with a warming cover, and the inner wall of the warming cover is fixedly connected with a locking block.

[0009] In a preferred embodiment of the operating room patient warming device provided by the present invention, a buckle is fixedly connected to the upper surface of the connecting frame, the outer wall of the buckle is engaged with the inside of the buckle block, and a retaining ring is provided inside the buckle block, the outer wall of the retaining ring being engaged with the outer wall of the buckle.

[0010] In a preferred embodiment of the operating room patient warming device provided by the present invention, a protective shell is fixedly connected to the outer wall of the water tank, a rotating column is rotatably connected inside the protective shell, a knob is fixedly connected to the outer wall of the rotating column, and an eccentric wheel is fixedly connected to the outer wall of the rotating column.

[0011] In a preferred embodiment of the operating room patient warming device provided by the present invention, a ratchet is fixedly connected to the outer wall of the rotating column, a pawl is engaged with the tooth end of the ratchet, a support shaft is rotatably connected inside the pawl, and the outer wall of the support shaft is fixedly connected to the inside of the protective shell.

[0012] In a preferred embodiment of the operating room patient warming device provided by the present invention, a fixed shaft is fixedly connected inside the pawl, a connecting block is rotatably connected to the outer wall of the fixed shaft, a pull rod is fixedly connected to the outer wall of the connecting block, and the outer wall of the pull rod is slidably connected to the inside of the protective shell.

[0013] In a preferred embodiment of the operating room patient warming device provided by the present invention, a connecting piece is fixedly connected to the outer wall of the pull rod, and a spring three is sleeved on the outer wall of the pull rod. One end of the spring three is fixedly connected to the inside of the protective shell, and the other end of the spring three is fixedly connected to the outer wall of the connecting piece.

[0014] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0015] Meanwhile, through the above technical solutions, the present invention has at least the following beneficial effects: The present invention provides a patient warming device for operating rooms. Starting the water pump can drive the heated water in the water tank into the water pipe. The water pipe is coiled inside the operating table. Through water circulation, the operating table can be heated and kept warm. When used with a warming blanket, it can effectively keep the patient warm during surgery.

[0016] In this invention, the thermal blanket is passed through the limiting frame. Through the cooperation of the support column, fixing plate, spring 2, sliding frame, limiting plate, rotating column, knob, eccentric wheel, ratchet, pawl, support shaft, pull rod, connecting piece, spring 3, connecting block and fixing shaft, the thermal blanket of different thicknesses can be limited and fixed at any position, thereby adapting to patients of different body types and improving the warmth retention effect.

[0017] In this invention, the insulation blanket has multiple sets of insulation covers in the middle. Each set of insulation covers is made of soft material and can come into direct contact with the patient's skin. Each insulation cover can be opened individually or in multiple sets, so that when surgery is performed on a part of the patient's limb, other parts of the body can still be kept warm. At the same time, when the temperature is too high, some insulation covers can be selectively opened to dissipate heat. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the fixing frame of the present invention; Figure 3 This is a schematic diagram of the internal structure of the mobile phone station of the present invention; Figure 4 This is a schematic diagram of the internal structure of the water pipe of the present invention; Figure 5 This is a schematic diagram of the internal structure of the water tank of the present invention; Figure 6 This is a schematic diagram of the internal structure of the sliding frame of the present invention; Figure 7 This is a schematic diagram of the internal structure of the water pump of the present invention; Figure 8 for Figure 7 Enlarged view of point A; Figure 9 This is a schematic diagram of the internal structure of the protective shell of the present invention; Figure 10 This is a schematic diagram of the internal structure of the pawl of the present invention; Figure 11 This is a schematic diagram of the internal structure of the ratchet of the present invention; Figure 12 This is a schematic diagram of the internal structure of the support frame of the present invention; Figure 13 for Figure 12 Enlarged view of point B; Figure 14 This is a schematic diagram of the internal structure of the heat-insulating cover of the present invention; Figure 15 This is a schematic diagram of the internal structure of the buckle of the present invention.

[0020] In the diagram: 1. Operating table; 2. Water tank; 3. Heating element; 4. Water pump; 5. Water pipe; 6. Vent; 7. Pad; 8. Fixing frame; 9. Insulation blanket; 10. Support assembly; 1001. Support frame; 1002. Press plate; 1003. Sliding column; 1004. Sliding block; 1005. Spring 1; 1006. Rotating shaft; 1007. Rotating plate; 1008. Connecting shaft; 1009. Locking post; 11. Limiting frame; 12. Support column ; 13. Fixing plate; 14. Spring 2; 15. Sliding frame; 16. Limiting plate; 17. Temperature sensor; 18. Connecting frame; 19. Insulation cover; 20. Buckle; 21. Locking block; 22. Snap ring; 23. Protective shell; 24. Rotating column; 25. Knob; 26. Eccentric wheel; 27. Ratchet; 28. Pawl; 29. ​​Support shaft; 30. Pull rod; 31. Connecting piece; 32. Spring 3; 33. Connecting block; 34. Fixing shaft. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Reference Figures 1-15A patient warming device for operating rooms includes an operating table 1. A water tank 2 is fixedly connected to the lower surface of the operating table 1. A heating pipe 3 is installed inside the water tank 2. A water pump 4 is fixedly connected to the outer wall of the water tank 2. A water pipe 5 is fixedly connected to the output end of the water pump 4. The outer wall of the water pipe 5 is fixedly connected to the inside of the operating table 1. A vent 6 is provided inside the operating table 1. A pad 7 is provided on the upper surface of the operating table 1. The outer wall of the pad 7 is placed inside the vent 6. A fixing frame 8 is fixedly connected to the upper surface of the operating table 1. A warming blanket 9 is fixedly connected to the outer wall of the fixing frame 8. A limiting frame 11 is fixedly connected to the outer wall of the operating table 1. The inside of the limiting frame 11 passes through the surface of the heat preservation blanket 9. A support column 12 is fixedly connected to the lower surface of the operating table 1. A fixing plate 13 is fixedly connected to the lower surface of the support column 12. A spring 14 is sleeved on the outer wall of the support column 12. The top end of the spring 14 is fixedly connected to the lower surface of the operating table 1. A sliding frame 15 is fixedly connected to the bottom end of the spring 14. A limiting plate 16 is fixedly connected to the lower surface of the sliding frame 15. A temperature sensor 17 is fixedly connected to the lower surface of the operating table 1. A support assembly 10 is provided at the bottom end of the operating table 1.

[0026] The operating room patient warming device provided by this invention operates as follows: When a patient lies on the operating table 1, the operating table 1 can be heated to keep the patient warm. A water tank 2 is installed on the lower surface of the operating table 1, and a heating pipe 3 is installed inside the water tank 2. The heating pipe 3 can heat the water inside the water tank 2. At this time, by starting the water pump 4, the heated water can be driven from the water tank 2 into the water pipe 5. The water pipe 5 can heat and keep the operating table 1 warm by reciprocating inside the operating table 1. At the same time, a temperature sensor 17 is installed on the lower surface of the operating table 1. The temperature sensor 17 can detect the temperature of the operating table 1 and adjust the heating pipe 3 according to the temperature of the operating table 1 in order to control the water temperature in the water tank 2 and keep the operating table 1 at a constant temperature.

[0027] In addition, a heat preservation blanket 9 is provided on the upper surface of the operating table 1. The heat preservation blanket 9 can wrap the patient to keep warm. The heat preservation blanket 9 can be fixed on the fixing frame 8. The cooperation between the heat preservation blanket 9 and the heated operating table 1 can effectively keep the patient warm. A ventilation port 6 is provided on one side of the operating table 1, so that the patient can lie on the operating table 1 without affecting breathing when performing back surgery. A pad 7 can also be provided above the ventilation port 6, so that the patient's head can be rested on the pad 7. Meanwhile, one side of the heat insulation blanket 9 is fixed to the fixing frame 8, and the other side of the heat insulation blanket 9 first passes through the limiting frame 11, and then passes through the sliding frame 15 and the operating table 1. At this time, the heat insulation blanket 9 is driven to pass through the upper part of the limiting plate 16 and the lower part of the fixing plate 13 again. The spring 14 plays a rebound role, which can drive the sliding frame 15 to slide downward inside the fixing plate 13. In a natural state, enough space is maintained for the heat insulation blanket 9 to pass through. By adjusting the position of the limiting plate 16 and the sliding frame 15, the heat insulation blanket 9 can be limited, thereby flexibly controlling the coverage area of ​​the heat insulation blanket 9, fitting and keeping warm patients of different body types, and improving the adaptability of the heat insulation blanket 9.

[0028] Reference Figure 12 and Figure 13 The support assembly 10 includes a support frame 1001, which is slidably connected to the bottom of the operating table 1. A push plate 1002 is slidably connected to the inside of the operating table 1. Sliding columns 1003 are fixedly connected to both sides of the lower surface of the push plate 1002. A spring 1005 is sleeved on the outer wall of the sliding column 1003. The top of the spring 1005 is fixedly connected to the inside of the operating table 1. A slider 1004 is fixedly connected to the bottom of the spring 1005. A rotating shaft 1006 is fixedly connected to the inside of the slider 1004. A rotating plate 1007 is rotatably connected to the outer wall of the rotating shaft 1006. A connecting shaft 1008 is rotatably connected to the inside of the rotating plate 1007. A locking post 1009 is fixedly connected to the outer wall of the connecting shaft 1008. The outer wall of the locking post 1009 is locked inside the support frame 1001.

[0029] The operating room patient warming device provided by this invention is used as follows: A support assembly 10 is provided at the bottom of the operating table 1. The support assembly 10 can support the operating table 1 and adjust the height of the operating table 1. When the height of the operating table 1 needs to be adjusted, first, the operating table 1 is lifted by holding the pressing plate 1002. Pressing the pressing plate 1002 can cause the pressing plate 1002 to slide inside the operating table 1, which in turn can cause the sliding column 1003 to slide in the operating table 1, and at the same time, can drive the slider 100... 4. Sliding causes the spring 1005 to be compressed, which in turn causes the rotating plate 1007 to rotate on the outer wall of the rotating shaft 1006 and the connecting shaft 1008. At this time, the locking pin 1009 can slide out of the support frame 1001, and the bottom end of the operating table 1 can slide inside the support frame 1001. When the operating table 1 moves to a suitable height, the rebound of the spring 1005 can cause the locking pin 1009 to slide back into the limiting groove opened inside the support frame 1001, thus achieving the effect of flexibly adjusting the height of the operating table 1.

[0030] Reference Figure 14 and Figure 15The heat insulation blanket 9 has multiple connecting frames 18 inside. The outer wall of the connecting frame 18 is fixedly connected to the heat insulation cover 19, and the inner wall of the heat insulation cover 19 is fixedly connected to the locking block 21. The upper surface of the connecting frame 18 is fixedly connected to the buckle 20, and the outer wall of the buckle 20 is locked inside the locking block 21. The locking block 21 has a locking ring 22 inside, and the outer wall of the locking ring 22 is locked inside the outer wall of the buckle 20.

[0031] The operating room patient warming device provided by this invention is used as follows: Multiple sets of connecting frames 18 are set at the center of the warming blanket 9. Each set of connecting frames 18 is tightly connected to each other. Each connecting frame 18 is connected to a warming cover 19. One side of the warming cover 19 is tightly connected to the connecting frame 18 by sewing, and the other side is connected by a buckle 20. The buckle 20 on the upper side of the connecting frame 18 is snapped into the inside of the locking block 21. The locking block 21 is provided with a locking ring 22 to connect the buckle 20. When surgery is required for the patient, one or more sets of warming covers 19 can be opened locally on the warming blanket 9 to keep other parts of the patient's body warm without affecting the surgical site. At the same time, the warming covers 19 can be selectively opened when the temperature is too high to allow local heat dissipation for the patient.

[0032] Reference Figures 9-11 A protective shell 23 is fixedly connected to the outer wall of the water tank 2. A rotating column 24 is rotatably connected inside the protective shell 23. A knob 25 is fixedly connected to the outer wall of the rotating column 24. An eccentric wheel 26 is fixedly connected to the outer wall of the rotating column 24. A ratchet 27 is fixedly connected to the outer wall of the rotating column 24. A pawl 28 is meshed with the teeth of the ratchet 27. A support shaft 29 is rotatably connected inside the pawl 28. The outer wall of the support shaft 29 is fixedly connected to the inside of the protective shell 23. A fixed shaft 34 is fixedly connected inside the pawl 28. A connecting block 33 is rotatably connected to the outer wall of the fixed shaft 34. A pull rod 30 is fixedly connected to the outer wall of the connecting block 33. The outer wall of the pull rod 30 is slidably connected to the inside of the protective shell 23. A connecting piece 31 is fixedly connected to the outer wall of the pull rod 30. A spring 32 is sleeved on the outer wall of the pull rod 30. One end of the spring 32 is fixedly connected to the inside of the protective shell 23, and the other end of the spring 32 is fixedly connected to the outer wall of the connecting piece 31.

[0033] The operating room patient warming device provided by this invention operates as follows: When limiting the position of the warming blanket 9, the limiting plate 16 and the sliding frame 15 need to be adjusted. When the limiting plate 16 needs adjustment, the rotating column 24 is rotated inside the protective shell 23 by manually rotating the knob 25. When the rotating column 24 rotates, it can drive the eccentric wheel 26 to rotate. While rotating, the eccentric wheel 26 can press the lower surface of the limiting plate 16, and at the same time drive the limiting plate 16 to move, thereby driving the sliding frame 15 to slide inside the fixed plate 13, achieving the effect of height adjustment of the sliding frame 15, and thus enabling the warming blanket 9 to be compressed and limited, so that... The insulation blankets 9 of different thicknesses are fixed to avoid affecting the surgical effect and the warmth retention effect. In addition, when the rotating column 24 rotates, it can also drive the ratchet 27 to rotate. Due to the meshing between the ratchet 27 and the pawl 28, the rotating column 24 can be self-locked when it rotates, and thus the eccentric wheel 26 can be self-locked when it rotates. When it is necessary to rotate the rotating column 24 in the opposite direction, the connecting piece 31 can be pushed by pulling the pull rod 30 to compress the spring 32. At the same time, the connecting block 33 can be driven to rotate on the outer wall of the fixed shaft 34, and then the pawl 28 can be driven to rotate on the outer wall of the support shaft 29. At this time, the self-locking of the rotating column 24 can be canceled, and the effect of reverse rotation can be achieved.

[0034] In this embodiment, each structure has its own service life. In actual manufacturing and application, the corresponding structure made of different materials can be replaced according to the needs of use.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A patient warming device for an operating room, comprising an operating table (1), characterized in that, The lower surface of the operating table (1) is fixedly connected with a water tank (2), the inside of the water tank (2) is provided with a heating pipe (3), the outer wall of the water tank (2) is fixedly connected with a water pump (4), the output end of the water pump (4) is fixedly connected with a water pipe (5), the outer wall of the water pipe (5) is fixedly connected in the inside of the operating table (1), the inside of the operating table (1) is provided with a vent (6), the upper surface of the operating table (1) is provided with a pad (7), the outer wall of the pad (7) is placed in the inside of the vent (6), the upper surface of the operating table (1) is fixedly connected with a fixing frame (8), the outer wall of the fixing frame (8) is fixedly connected with a thermal blanket (9), the outer wall of the operating table (1) is fixedly connected with a limiting frame (11), the inside of the limiting frame (11) penetrates the surface of the thermal blanket (9), the lower surface of the operating table (1) is fixedly connected with a support column (12), the lower surface of the support column (12) is fixedly connected with a fixed plate (13), the outer wall of the support column (12) is sleeved with a spring two (14), the top end of the spring two (14) is fixedly connected with the lower surface of the operating table (1), the bottom end of the spring two (14) is fixedly connected with a sliding frame (15), the lower surface of the sliding frame (15) is fixedly connected with a limiting plate (16), the lower surface of the operating table (1) is fixedly connected with a temperature sensor (17), and the bottom end of the operating table (1) is provided with a supporting assembly (10).

2. A patient warming device for use in an operating room according to claim 1, wherein The supporting assembly (10) comprises a supporting frame (1001), the inside of the supporting frame (1001) is slidably connected with the bottom end of the operating table (1), the inside of the operating table (1) is slidably connected with a pressing plate (1002), the lower surface of the pressing plate (1002) is fixedly connected with a slide column (1003) on both sides, the outer wall of the slide column (1003) is sleeved with a spring one (1005), the top end of the spring one (1005) is fixedly connected with the inside of the operating table (1), the bottom end of the spring one (1005) is fixedly connected with a sliding block (1004), the inside of the sliding block (1004) is fixedly connected with a rotating shaft (1006), the outer wall of the rotating shaft (1006) is rotatably connected with a rotating plate (1007), the inside of the rotating plate (1007) is rotatably connected with a connecting shaft (1008), the outer wall of the connecting shaft (1008) is fixedly connected with a clamping column (1009), and the outer wall of the clamping column (1009) is clamped in the inside of the supporting frame (1001).

3. The patient warming device of claim 1, wherein, The inside of the thermal blanket (9) is provided with a plurality of connecting frames (18), the outer wall of the connecting frame (18) is fixedly connected with a thermal cover (19), and the inner wall of the thermal cover (19) is fixedly connected with a clamping block (21).

4. The patient warming device of claim 1, wherein, The upper surface of the connecting frame (18) is fixedly connected with a buckle (20), the outer wall of the buckle (20) is clamped in the inside of the clamping block (21), the inside of the clamping block (21) is provided with a clamping ring (22), and the outer wall of the clamping ring (22) is clamped on the outer wall of the buckle (20).

5. The patient warming device of claim 1, wherein, The outer wall of the water tank (2) is fixedly connected with a protective shell (23), the inner part of the protective shell (23) is rotatably connected with a rotating column (24), the outer wall of the rotating column (24) is fixedly connected with a rotating knob (25), and the outer wall of the rotating column (24) is fixedly connected with an eccentric wheel (26).

6. A patient warming device for use in an operating room according to claim 5, wherein, The outer wall of the rotating column (24) is fixedly connected with a ratchet wheel (27), the tooth end of the ratchet wheel (27) is meshedly connected with a ratchet pawl (28), the inner part of the ratchet pawl (28) is rotatably connected with a supporting shaft (29), and the outer wall of the supporting shaft (29) is fixedly connected in the inner part of the protective shell (23).

7. A patient warming device for use in an operating room according to claim 6, wherein The inner part of the ratchet pawl (28) is fixedly connected with a fixed shaft (34), the outer wall of the fixed shaft (34) is rotatably connected with a connecting block (33), the outer wall of the connecting block (33) is fixedly connected with a pull rod (30), and the outer wall of the pull rod (30) is slidably connected in the inner part of the protective shell (23).

8. A patient warming device for use in an operating room according to claim 7, wherein, The outer wall of the pull rod (30) is fixedly connected with a connecting sheet (31), the outer wall of the pull rod (30) is sleeved with a spring three (32), one end of the spring three (32) is fixedly connected in the inner part of the protective shell (23), and the other end of the spring three (32) is fixedly connected to the outer wall of the connecting sheet (31).

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