Sterilized thermostatic water bath for surgery

Abstract

This invention relates to the field of medical devices and discloses a sterile constant temperature water bath for surgery, comprising a water storage tank, a water bath body, a communication and conversion mechanism, a heating mechanism, a cooling mechanism, and a sterile water storage tank. The water bath body is fixedly installed on the upper surface of the water storage tank, and the communication and conversion mechanism is provided inside the water storage tank. The heating mechanism and the cooling mechanism are fixedly installed on both sides of the upper surface of the water storage tank located on the water bath body, respectively. This invention uses a sterile water storage tank to store sterile water for rinsing. Air pressure is injected into the sterile water storage tank using an inflatable airbag and an inflation tube, squeezing the sterile water out from the inside of the suction pipe. The water is then connected to an external rinsing device through the suction pipe, achieving the effect of water pumping and cleaning. The water storage tank stores water for heating, and air pressure is continuously injected into the water storage tank using an air pump.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more specifically to a sterile constant temperature water bath for surgical use. Background Technology

[0002] Constant temperature water baths are widely used for drying, concentration, distillation, and impregnation of chemical reagents, pharmaceuticals, and biological agents. They can also be used for constant temperature heating in water baths and other temperature tests. They are an essential tool for biological, genetic, virological, aquatic, environmental, medical, health, biochemical, and analytical laboratories, as well as for educational and research purposes.

[0003] In the operating room environment, during highly sophisticated surgeries involving thoracic and abdominal organs, it is necessary to continuously or intermittently spray sterile water onto the surface of the surgical site to maintain a clear field of vision. Furthermore, before closing the thoracic and abdominal cavities, thorough flushing is required. During this flushing process, the water needs to be preheated to prevent a drop in the patient's body temperature, necessitating a water bath. However, current water baths in operating rooms require an additional sterile protective cover, which is inconvenient and increases costs. Moreover, the thin-film protective cover is easily damaged and difficult to detect during use. Contamination of the sterile flushing solution poses a significant risk of infection to the patient. Therefore, we propose a sterile, constant-temperature water bath for surgical use. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a sterile constant temperature water bath for surgery, which can solve the problem that the current water baths used in the operating room need to be covered with a sterile protective cover, which is inconvenient and increases costs. In addition, the sterile protective cover is made of thin film material, and damage during use is not easily detected. Once the sterile irrigation fluid is contaminated, it will bring a significant risk of infection to the patient.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, more specifically, a surgical sterile constant temperature water bath includes a water storage tank, a water bath body, a communication and conversion mechanism, a heating mechanism, a cooling mechanism, and a sterile water storage tank. The water bath body is fixedly installed on the upper surface of the water storage tank. The communication and conversion mechanism is provided inside the water storage tank. The heating mechanism and the cooling mechanism are fixedly installed on both sides of the upper surface of the water storage tank located on the water bath body, respectively. The sterile water storage tank is engaged with the inner side of the water bath body. An air pump is fixedly installed on the left side of the water storage tank. The output end of the air pump is connected to the interior of the water storage tank. The water bath body is a hollow cuboid structure with an open upper surface. The sterile water storage tank is also a hollow cuboid structure with an open upper surface. The heating mechanism and the cooling mechanism are connected to the communication and conversion mechanism and the water bath body. A drain pipe is fixedly connected to the bottom of the water bath body. The bottom of the drain pipe extends into the interior of the water storage tank and is fixedly fitted with a solenoid valve.

[0006] Furthermore, casters are fixedly connected to the four corners of the lower surface of the water tank.

[0007] Furthermore, the communication conversion mechanism includes a connecting pipe, partitions, sealing plates, shaft one, bevel gear one, shaft two, bevel gear two, transmission gear, pressure box, air pump two, piston, rack, and water inlet. The connecting pipe has an integrally formed cylindrical cavity. Two partitions are integrally formed inside the cylindrical cavity. Limit blocks are integrally formed on the inner sidewall of the cylindrical cavity near the opposite positions of the two partitions. Sealing plates are provided on the inner sidewall of the cylindrical cavity near the opposite positions of the two partitions. Arc-shaped grooves are formed on the outer sidewalls of the sealing plates. The top of the limit blocks extends to the inner side of the arc-shaped grooves and is slidably connected to them. Shaft one is fixedly connected to the opposite sides of the two sealing plates. Bevel gear one is fixedly connected to the opposite ends of the two shafts one. Two shafts two are symmetrically rotatably connected to the inner upper surface of the cylindrical cavity via a rotating shaft. The bottom ends of the shafts two are fixedly connected to... The first bevel gear is fixedly connected to the second bevel gear, which meshes with the second bevel gear. The top of the second shaft extends above the connecting pipe and is fixedly connected to the transmission gear. The upper surface of the connecting pipe is fixedly connected to the pressure box at the opposite ends of the two transmission gears. The upper surface of the connecting pipe is fixedly installed between the two transmission gears. The two ends of the second air pump are fixedly connected to the opposite sides of the two pressure boxes. The piston is slidably connected inside the pressure box. The rack is fixedly connected to the opposite sides of the two pistons and meshes with the transmission gear. The lower surface of the connecting pipe is fixedly connected to the water inlet. A through-hole is provided on the upper left side of the partition on the left side of the water inlet and on the lower left side of the partition on the right side of the water inlet. A through-hole is provided on the upper left side of the sealing plate.

[0008] Furthermore, the heating mechanism includes a mounting box, a heating device, and a corrugated circulation pipe. The heating device is fixedly mounted on the upper surface of the mounting box. The corrugated circulation pipe is located on the inner side of the mounting box, outside the heating device. The top end of the corrugated circulation pipe extends into the interior of the water bath and is located above the sterile water storage tank. The bottom end of the corrugated circulation pipe is fixedly connected to the outer wall of the connecting pipe.

[0009] Furthermore, the refrigeration mechanism includes a second mounting box, a refrigeration device, and a second corrugated circulation pipe. The refrigeration device is fixedly mounted on the upper surface of the second mounting box. The second corrugated circulation pipe is located on the inner side of the second mounting box, outside the refrigeration device. The top end of the second corrugated circulation pipe extends into the interior of the water bath and is located above the sterile water storage tank. The bottom end of the second corrugated circulation pipe is fixedly connected to the outer wall of the connecting pipe.

[0010] Furthermore, a temperature sensor is fixedly installed on the lower inner surface of the water storage tank.

[0011] Furthermore, the outer wall of the sterile water storage tank is integrally formed with a water collection and insulation box, the inside of the water collection and insulation box is provided with a water collection trough, the inside of the water collection trough is integrally formed with multiple diversion plates, the bottom of the water collection trough is integrally formed with a water outlet cavity, and a flow limiting valve is fixedly installed on the inner side wall of the water outlet cavity.

[0012] Furthermore, a filter screen is fixedly installed at the input end of the air pump.

[0013] The beneficial effects of the surgical sterile constant temperature water bath of the present invention are as follows:

[0014] This invention features a sterile water storage tank for storing sterile water used for rinsing. The tank is opened by pulling a handle, allowing the sterile water to be retrieved using external tools. A pull groove on the handle facilitates manual operation. The tank contains water for heating. An air pump pressurizes the tank, allowing the water to be heated by a heating mechanism or cooled by a cooling mechanism before entering a water bath. A solenoid valve and drain pipe flush the water back into the tank, creating a water circulation effect and preventing water waste. A switching mechanism controls the flow of heated or cooled water into the water bath, allowing for temperature adjustment as needed.

[0015] In this invention, the connecting pipe, partition, sealing plate, shaft one, bevel gear one, shaft two, bevel gear two, transmission gear, pressure box, air pump two, piston, rack, and water inlet that make up the connecting conversion mechanism are configured with cylindrical cavity, limiting block, arc groove, circular hole one and circular hole two. When the air pump two is started, it will drive one pressure box to fill with air and the other pressure box to evacuate air, thereby driving the two racks to move together, which in turn drives the two transmission gears to rotate. This causes the bevel gear two at the bottom of shaft two to rotate, which in turn drives the bevel gear one that meshes with it to rotate. This causes the two sealing plates at opposite ends of the two shafts one to rotate together, so that the circular hole two on one of the sealing plates aligns with the corresponding circular hole one. This controls the connection between the connecting conversion mechanism and the heating or cooling mechanism. When the air pump one fills the water tank with air pressure, the water inside the water tank will be heated or cooled by one of the heating or cooling mechanisms and then enter the water bath, thereby achieving a better control of the water temperature.

[0016] This invention utilizes a water collection and insulation box, a water collection trough, a diversion plate, a water outlet chamber, and a limiting valve located on the outer wall of a sterile water storage tank. This design ensures that when heating water enters the water bath from corrugated circulation pipe one or two, it flows along the outer wall of the sterile water storage tank into the water collection trough at the top of the water collection and insulation box. After being divided into multiple parts by the diversion plates, the water for temperature control can better contact the outer wall of the sterile water storage tank, thus improving heating. The limiting valve ensures that the water flowing in from above fills the water collection trough, providing a heat preservation effect. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall structure of a surgical sterilization constant temperature water bath box according to the present invention;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a surgical sterilization constant temperature water bath box according to the present invention;

[0020] Figure 3 This is a cross-sectional schematic diagram of the communication and conversion mechanism of a surgical sterile constant temperature water bath according to the present invention.

[0021] Figure 4 This is a schematic diagram of the sealing plate of a surgical sterilization constant temperature water bath box according to the present invention;

[0022] Figure 5 This is a schematic diagram of the sterile water storage tank of a surgical sterile constant temperature water bath box according to the present invention.

[0023] Figure 6 This invention relates to a sterile constant temperature water bath for surgical use. Figure 2 A magnified structural diagram at point A;

[0024] Figure 7 This invention relates to a sterile constant temperature water bath for surgical use. Figure 3 A magnified structural diagram at point B.

[0025] In the diagram: 1. Water storage tank; 2. Water bath body; 3. Connecting and switching mechanism; 4. Heating mechanism; 5. Refrigeration mechanism; 6. Sterile water storage tank; 7. Air pump one; 8. Water collection and insulation box; 9. Water collection trough; 10. Drain pipe; 11. Solenoid valve; 12. Casters; 13. Cylindrical cavity; 14. Limiting block; 15. Arc groove; 16. Circular hole one; 17. Circular hole two; 18. Temperature sensor; 19. Water outlet chamber; 20. Diverter plate; 21. Filter screen; 22. Flow limiting valve; 3 01. Connecting pipe; 302. Partition plate; 303. Sealing plate; 304. Shaft 1; 305. Bevel gear 1; 306. Shaft 2; 307. Bevel gear 2; 308. Transmission gear; 309. Pressure box; 310. Air pump 2; 311. Piston; 312. Rack; 313. Water inlet; 401. Mounting box 1; 402. Heating device; 403. Corrugated circulation pipe 1; 501. Mounting box 2; 502. Refrigeration device; 503. Corrugated circulation pipe 2. Detailed Implementation

[0026] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0027] According to one aspect of the invention, such as Figure 1-7 As shown, a surgical sterile constant temperature water bath is provided, including a water tank 1, a water bath body 2, a connecting and switching mechanism 3, a heating mechanism 4, a cooling mechanism 5, and a sterile water storage tank 6. The water bath body 2 is fixedly installed on the upper surface of the water tank 1. The connecting and switching mechanism 3 is provided inside the water tank 1. The heating mechanism 4 and the cooling mechanism 5 are fixedly installed on both sides of the upper surface of the water tank 1, respectively. The sterile water storage tank is engaged and installed inside the water bath body 2. 6. An air pump 7 is fixedly installed on the left side of the water storage tank 1. The output end of the air pump 7 is connected to the interior of the water storage tank 1. The water bath tank 2 is a hollow cuboid structure with an open upper surface. The sterile water storage tank 6 is a hollow cuboid structure with an open upper surface. The heating mechanism 4 and the cooling mechanism 5 are connected to the communication conversion mechanism 3 and the water bath tank 2. A drain pipe 10 is fixedly connected to the bottom of the water bath tank 2. The bottom of the drain pipe 10 extends into the interior of the water storage tank 1 and is fixedly installed with a solenoid valve 11.

[0028] In this embodiment, casters 12 are fixedly connected to the four corners of the lower surface of the water tank 1 to facilitate the overall movement of the device.

[0029] In this embodiment, the communication conversion mechanism 3 includes a communication pipe 301, partitions 302, sealing plates 303, a first shaft 304, a first bevel gear 305, a second shaft 306, a second bevel gear 307, a transmission gear 308, a pressure box 309, a second air pump 310, a piston 311, a rack 312, and a water inlet 313. The communication pipe 301 has an integrally formed cylindrical cavity 13. The cylindrical cavity 13 has two integrally formed partitions 302. Limiting blocks 14 are integrally formed on the inner sidewall of the cylindrical cavity 13 near the opposite positions of the two partitions 302. Sealing plates 303 are provided on the inner sidewall of the cylindrical cavity 13 near the opposite positions of the two partitions 302. Arc-shaped grooves 15 are formed on the outer sidewall of the sealing plates 303. The limiting blocks 14... The top extends to the inner side of the arc-shaped groove 15 and is slidably connected to the arc-shaped groove 15. A shaft 304 is fixedly connected to the opposite sides of each of the two sealing plates 303. A bevel gear 305 is fixedly connected to the opposite ends of each of the two shafts 304. Two shafts 306 are symmetrically connected to the upper surface of the cylindrical cavity 13 via a rotating shaft. A bevel gear 307 is fixedly connected to the bottom end of shaft 306. Bevel gear 305 meshes with bevel gear 307. The top of shaft 306 extends above the connecting pipe 301 and is fixedly connected to a transmission gear 308. A pressure box 309 is fixedly connected to the upper surface of the connecting pipe 301 at the opposite ends of the two transmission gears 308. A second air pump 310 is fixedly installed between gears 308. Both ends of the second air pump 310 are fixedly connected to the opposite sides of two pressure boxes 309. A piston 311 is slidably connected inside the pressure box 309. A rack 312 is fixedly connected to the opposite sides of each piston 311. The rack 312 meshes with the transmission gear 308. A water inlet 313 is fixedly connected to the lower surface of the connecting pipe 301. A through-hole 16 is provided on the upper left side of the partition 302 on the left side of the water inlet 313 and on the lower left side of the partition 302 on the right side of the water inlet 313. A through-hole 27 is provided on the upper left side of the sealing plate 303. In this invention, the connecting pipe 301, partition 302, and sealing plate 303 constitute the connecting conversion mechanism 3. The system comprises shaft 304, bevel gear 305, shaft 306, bevel gear 307, transmission gear 308, pressure box 309, air pump 310, piston 311, rack 312, and inlet 313. Through the cylindrical cavity 13, limiting block 14, arc groove 15, circular hole 16, and circular hole 17, the air pump 310 is activated, causing one pressure box 309 to fill with air while the other pressure box 309 is de-aired. This causes the two racks 312 to move together, which in turn drives the two transmission gears 308 to rotate. This causes the bevel gear 307 at the bottom of shaft 306 to rotate, which in turn drives the bevel gear 305 meshing with it to rotate. This causes the two sealing plates 303 at the opposite ends of the two shafts 304 to rotate together.This aligns the second hole 17 on one of the sealing plates 303 with the corresponding first hole 16, thereby controlling the connection between the communication switching mechanism 3 and the heating mechanism 4 or the cooling mechanism 5. When the air pump 7 pressurizes the water tank 1, the water inside the tank 1 is heated or cooled by one of the heating mechanism 4 or the cooling mechanism 5 before entering the water bath 2, thus achieving better water temperature control.

[0030] In this embodiment, the heating mechanism 4 includes a mounting box 401, a heating device 402, and a corrugated circulation pipe 403. The heating device 402 is fixedly mounted on the upper surface of the mounting box 401. The corrugated circulation pipe 403 is arranged on the inner side of the mounting box 401, outside the heating device 402. The top end of the corrugated circulation pipe 403 extends into the interior of the water bath 2 and is located above the sterile water storage tank 6. The bottom end of the corrugated circulation pipe 403 is fixedly connected to the outer wall of the connecting pipe 301. Through the mounting box 401, the heating device 402, and the corrugated circulation pipe 403, the heating mechanism 4 can better heat the pumped water.

[0031] In this embodiment, the refrigeration mechanism 5 includes a second mounting box 501, a refrigeration device 502, and a second corrugated circulation pipe 503. The refrigeration device 502 is fixedly mounted on the upper surface of the second mounting box 501. The second corrugated circulation pipe 503 is arranged on the inner side of the second mounting box 501, outside the refrigeration device 502. The top end of the second corrugated circulation pipe 503 extends into the interior of the water bath 2 and is located above the sterile water storage tank 6. The bottom end of the second corrugated circulation pipe 503 is fixedly connected to the outer wall of the connecting pipe 301. Through the second mounting box 501, the refrigeration device 502, and the second corrugated circulation pipe 503, the refrigeration mechanism 5 can better cool the pumped water.

[0032] In this embodiment, a temperature sensor 18 is fixedly installed on the lower inner surface of the water storage tank 1 to facilitate sensing of the internal temperature, thereby controlling cooling or heating through an external controller.

[0033] In this embodiment, a water collection and insulation box 8 is integrally formed on the outer wall of the sterile water storage tank 6. A water collection trough 9 is provided inside the water collection trough 9, and multiple diversion plates 20 are integrally formed inside the water collection trough 9. A water outlet cavity 21 is integrally formed at the bottom of the water collection trough 9, and a flow-limiting valve 22 is fixedly installed on the inner wall of the water outlet cavity 21. This invention, through the water collection and insulation box 8, water collection trough 9, diversion plates 20, water outlet cavity 21, and flow-limiting valve 22 arranged on the outer wall of the sterile water storage tank 6, enables the heating water... When water enters the water bath 2 from the corrugated circulation pipe 403 or the corrugated circulation pipe 503, it will flow along the outer wall of the sterile water storage tank 6 into the water collection tank 9 opened at the top of the water collection and insulation tank 8. After being diverted by multiple diversion plates 20, it is divided into multiple parts, so that the temperature-controlled water can better contact the outer wall of the sterile water storage tank 6, thereby better heating the sterile water storage tank 6. The flow limiting valve 22 ensures that the water flowing in from above fills the water collection tank 9 with accumulated liquid, which achieves the heat preservation effect.

[0034] In this embodiment, a filter screen 21 is fixedly installed at the input end of the air pump 7 to filter the air drawn in by the air pump 7.

[0035] The working principle of this device is as follows: The present invention uses a sterile water storage tank 6 to store sterile water for rinsing. The water storage tank 1 stores water for heating. Air pump 7 pressurizes the water storage tank 1, so that the water in the water storage tank 1 can be heated by the heating mechanism 4 or cooled by the cooling mechanism 5 before entering the water bath 2, thereby heating the sterile water in the sterile water storage tank 6. The solenoid valve 11 and the drain pipe 10 flush the water after the water bath back into the water storage tank 1 for storage, achieving a water circulation effect and avoiding water waste. The connecting conversion mechanism 3 is used to control the water in the water storage tank 1 to enter the water bath 2 after heating or cooling, so as to adjust the water bath temperature as needed. Moreover, the device uses the combination of cooling and heating to better control the water bath temperature.

[0036] All electrical components mentioned in this article are real-world electrical components.

[0037] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A sterile constant temperature water bath for surgical use, comprising a water storage tank (1), a water bath body (2), a connecting and switching mechanism (3), a heating mechanism (4), a cooling mechanism (5), and a sterile water storage tank (6), characterized in that: The water bath tank (2) is fixedly installed on the upper surface of the water storage tank (1). The water storage tank (1) is equipped with the communication conversion mechanism (3). The heating mechanism (4) and the cooling mechanism (5) are fixedly installed on both sides of the water bath tank (2) on the upper surface of the water storage tank (1). The sterile water storage tank (6) is fitted inside the water bath tank (2). The air pump (7) is fixedly installed on the left side of the water storage tank (1). The output end of the air pump (7) is connected to the... The interior of the water storage tank (1) is connected. The water bath tank (2) is a hollow cuboid structure with an open upper surface. The sterile water storage tank (6) is a hollow cuboid structure with an open upper surface. The heating mechanism (4) and the cooling mechanism (5) are connected to the communication conversion mechanism (3) and the water bath tank (2). The bottom of the water bath tank (2) is fixedly connected to a drain pipe (10). The bottom of the drain pipe (10) extends into the interior of the water storage tank (1) and is fixedly installed with a solenoid valve (11). The communication conversion mechanism (3) includes a communication pipe (301), a partition (302), a sealing plate (303), a shaft one (304), a bevel gear one (305), a shaft two (306), a bevel gear two (307), a transmission gear (308), a pressure box (309), an air pump two (310), a piston (311), a rack (312), and a water inlet (313). The communication pipe (301) has an integrally formed cylindrical cavity (13). The cylindrical cavity (13) has two integrally formed partitions (302). The inner sidewall of the cylindrical cavity (13) near the opposite positions of the two partitions (302) has integrally formed limit blocks. 14), the inner wall of the cylindrical cavity (13) is provided with sealing pieces (303) near the opposite positions of the two partitions (302). The outer wall of the sealing piece (303) is provided with an arc groove (15). The top of the limiting block (14) extends to the inner side of the arc groove (15) and is slidably connected to the arc groove (15). The opposite sides of the two sealing pieces (303) are fixedly connected with the shaft one (304). The opposite ends of the two shaft one (304) are fixedly connected with the bevel gear one (305). The inner upper surface of the cylindrical cavity (13) is symmetrically connected to two shaft two (306) through a rotating axis. The bottom end of the second (306) is fixedly connected to the second bevel gear (307), the first bevel gear (305) meshes with the second bevel gear (307), the top of the second shaft (306) extends above the connecting pipe (301) and is fixedly connected to the transmission gear (308), the upper surface of the connecting pipe (301) is fixedly connected to the pressure box (309) at the opposite ends of the two transmission gears (308), the upper surface of the connecting pipe (301) is fixedly installed between the two transmission gears (308), and the two ends of the second air pump (310) are respectively connected to the two pressure boxes (309). 9) The opposite sides are fixedly connected. The piston (311) is slidably connected inside the pressure box (309). The rack (312) is fixedly connected to the opposite sides of the two pistons (311). The rack (312) meshes with the transmission gear (308). The lower surface of the connecting pipe (301) is fixedly connected to the water inlet (313). A through-hole (16) is opened on the upper left side of the partition (302) on the left side of the water inlet (313) and on the lower left side of the partition (302) on the right side of the water inlet (313). A through-hole (17) is opened on the upper left side of the sealing plate (303).

2. The surgical sterilization constant temperature water bath according to claim 1, characterized in that: The water storage tank (1) is fixedly connected to four corners of its lower surface with casters (12).

3. The surgical sterilization constant temperature water bath according to claim 1, characterized in that: The heating mechanism (4) includes a mounting box (401), a heating device (402), and a corrugated circulation pipe (403). The heating device (402) is fixedly installed on the upper surface of the mounting box (401). The corrugated circulation pipe (403) is provided on the inner side of the mounting box (401) outside the heating device (402). The top end of the corrugated circulation pipe (403) extends into the interior of the water bath (2) and is located above the sterile water storage tank (6). The bottom end of the corrugated circulation pipe (403) is fixedly connected to the outer wall of the connecting pipe (301).

4. The surgical sterile constant temperature water bath according to claim 1, characterized in that: The refrigeration mechanism (5) includes a second mounting box (501), a refrigeration device (502), and a second corrugated circulation pipe (503). The refrigeration device (502) is fixedly installed on the upper surface of the second mounting box (501). The second corrugated circulation pipe (503) is provided on the inner side of the second mounting box (501) outside the refrigeration device (502). The top end of the second corrugated circulation pipe (503) extends into the interior of the water bath (2) and is located above the sterile water storage tank (6). The bottom end of the second corrugated circulation pipe (503) is fixedly connected to the outer wall of the connecting pipe (301).

5. A sterile constant temperature water bath for surgical use according to claim 1, characterized in that: A temperature sensor (18) is fixedly installed on the lower inner surface of the water storage tank (1).

6. A sterile constant temperature water bath for surgical use according to claim 1, characterized in that: The outer wall of the sterile water storage tank (6) is integrally formed with a water collection and heat preservation tank (8). The water collection and heat preservation tank (8) has a water collection trough (9) inside. The water collection trough (9) has multiple diversion plates (20) integrally formed inside. The bottom of the water collection trough (9) has an outlet cavity (19) integrally formed. The inner wall of the outlet cavity (19) is fixedly installed with a flow limiting valve (22).

7. A sterile constant temperature water bath for surgical use according to claim 1, characterized in that: A filter screen (21) is fixedly installed at the input end of the air pump (7).

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