Special anesthesia bed for ear-nose-throat operation

Abstract

The invention discloses a special anesthesia bed for ear-nose-throat surgery, which comprises a bed frame, a first bed plate and a second bed plate which are arranged in the bed frame, and a head fixing device arranged between the first bed plate and the second bed plate, the head fixing device comprises a cross rod, lifting plates which are symmetrically arranged relative to the cross rod, and a sliding sleeve which sleeves the cross rod, a plurality of groups of vertical rods penetrate through the lifting plate, a fixing box is welded and fixed to the top end of each group of vertical rods, the vertical rods are sleeved with elastic springs, the two ends of each elastic spring are welded and fixed to the corresponding fixing box and the lifting plate, a rubber strip used for bearing the head is arranged in each fixing box, and a supporting plate used for bearing the neck is arranged on each sliding sleeve. A driving mechanism for driving the lifting plate to vertically move is arranged on the bed frame. A plurality of rubber strips are arranged, the head can be better fixed, the head is prevented from shaking, meanwhile, the device can be used for patients of different ages and patients of different body types, and the application range is wide.

Description

Technical Field

[0001] The present invention relates to the technical field of ear, nose and throat surgery, and in particular to an anesthesia bed dedicated to ear, nose and throat surgery. Background Art

[0002] During ENT surgery, the patient's head and neck need to maintain a specific posture to ensure that the doctor can operate accurately. This surgery has very high requirements for the patient's head fixation. Not only does it require the head to remain stable throughout the operation, but it also requires the head to be able to be flexibly adjusted according to the needs of the operation. However, the common ENT surgery equipment on the market currently has many shortcomings in terms of head fixation and adjustment.

[0003] In the prior art, the head fixation function of the ENT surgical bed or surgical head frame is relatively simple, and usually only relies on a simple mechanical structure to adjust the left and right angles of the patient's head. For example, the ENT surgical head frame with announcement number CN214511796U adjusts the head posture by a motor-driven gear system. Although this type of equipment can adjust the patient's head to a certain extent, the adjustment range is relatively limited, and it is difficult to meet the needs of flexible adjustment at multiple angles during surgery. At the same time, the prior art has poor adaptability when fixing the heads of patients of different body shapes and age groups, and the fixation effect is not good, making it difficult to ensure stability during surgery. Especially for special populations such as children and the elderly, existing fixation equipment often lacks flexibility and adaptability.

[0004] In addition, when the head is fixed on the existing operating table, the patient is in a fixed position for a long time, which may cause discomfort due to improper support, and even cause complications such as pressure sores during long operations. Therefore, how to provide patients with more comfortable support during surgery while ensuring that the head position can be flexibly adjusted has become an urgent problem to be solved. Summary of the invention

[0005] The present invention aims to provide an anesthesia bed specifically for ENT surgery that can better fix the patient's head, adapt to differences in body shape and age of different patients, flexibly adjust the head posture, and improve comfort, so as to improve the safety and operation accuracy of the surgery.

[0006] To achieve the above-mentioned object, the present invention provides an anesthesia bed for ear, nose and throat surgery, comprising a bed frame, a first bed board and a second bed board arranged in the bed frame, and a head fixing device arranged between the first bed board and the second bed board.

[0007] The head fixing device comprises a cross bar, a lifting plate symmetrically arranged with respect to the cross bar, and a sliding sleeve sleeved on the cross bar. The lifting plate passes through a plurality of vertical bars, and a fixing box is welded and fixed to the top of each vertical bar. An elastic spring is sleeved on the vertical bar, and both ends of the elastic spring are welded and fixed to the fixing box and the lifting plate.

[0008] The fixing box is provided with a rubber strip for supporting the head, the bottom inner wall of the fixing box is fixedly bonded with a first air bag, the expansion end of the first air bag is in contact with the bottom surface of the rubber strip, and the first air bag is connected with a first air guide pipe.

[0009] The sliding sleeve is provided with a support plate for supporting the neck, the top of the sliding sleeve is provided with an open groove, a second air bag is provided in the open groove, the top expansion end of the second air bag is in contact with the bottom surface of the support plate, and the second air bag is connected with a second air guide pipe.

[0010] The bed frame is provided with a driving mechanism for driving the lifting plate to move vertically.

[0011] A second cavity is provided inside the second bed board, a first cavity is provided inside the lifting board, a lifting board wall at the top of the first cavity is connected to the first air duct, the lifting board wall at the top of the first cavity is connected to the second bed board wall at the top of the second cavity through a connecting hose, and the second bed board wall at the bottom of the second cavity is connected to the first branch pipe.

[0012] One end of the second air guide pipe is connected to the second branch pipe, the first branch pipe and the second branch pipe are connected to the connecting pipe through a tee, and the connecting pipe is connected to the air pump.

[0013] As the preferred technical solution:

[0014] As described above, in an anesthesia bed specially used for ENT surgery, the first bed board and the second bed board have recesses at opposite ends, the recesses on the first bed board and the second bed board are combined into a rectangular through groove, the head fixing device is located in the through groove, and the two ends of the cross bar are welded and fixed to the recesses of the first bed board and the second bed board.

[0015] Through the above technical solution, the setting of the through groove can provide space for the vertical movement of the lifting plate and the horizontal movement of the sliding sleeve. Then, the head fixing device can better fix the head through adjustment, which is beneficial to the operation.

[0016] As described above, in an anesthesia bed specially used for ENT surgery, a group of guide strips are welded and fixed to the outer walls of both sides of the lifting plate, and sliding grooves adapted to the guide strips are provided at the recess of the second bed board and on both sides of the cross bar, and the guide strips are inserted into the sliding grooves.

[0017] Through the above technical solution, the guide bar is vertically arranged, and the guide bar can slide vertically in the sliding groove, so that the lifting plate can be moved vertically for adjustment, and the structure is reasonable.

[0018] As described above, in an anesthesia bed specially used for ENT surgery, the first air duct is sealed and bonded to the lifting plate, both ends of the connecting hose are sealed and bonded to the second bed board and the lifting plate, the first branch pipe is sealed and bonded to the second bed board, and the first airbag and the first air duct as well as the second airbag and the second air duct are all integrally formed.

[0019] Through the above technical solution, the overall air tightness can be improved by setting the sealing and bonding, so that the patient's head posture can be better adjusted by air pressure to ensure the posture adjustment effect. At the same time, the first airway tube, the second airway tube and the connecting hose are made of flexible materials, so they will not break or break when the lifting plate moves multiple times.

[0020] In the above-mentioned special anesthesia bed for ear, nose and throat surgery, the rubber strip is in the shape of a long strip as a whole, the bottom surface of the rubber strip is inclined, and the top surface of the rubber strip extends out from the fixing box.

[0021] A rotating shaft fixedly bonded to the rubber strip passes through one side of the rubber strip, and two ends of the rotating shaft are connected to the fixed box bearings.

[0022] Through the above technical solution, the rubber strip is made of hard rubber, so when supporting the patient's head, it will not deform too much, avoiding the patient's head from colliding with the fixing box. At the same time, when the fixing box rotates, the rubber strip can drive the patient's head to lift up.

[0023] In the above-mentioned anesthesia bed dedicated to ENT surgery, two adjacent fixing boxes are parallel to and fit each other, the top surface of the fixing box is open, and the side of the fixing box close to the rotating axis is open.

[0024] Through the above technical solution, the top and side surfaces of the fixing box are open-shaped, so that the rubber strip will not be hindered by the fixing box when rotating, ensuring that the rubber strip can rotate smoothly.

[0025] The above-mentioned anesthesia bed for ear, nose and throat surgery, wherein the driving mechanism comprises two angle plates welded and fixed to the bottom surface of the bed frame, two worms arranged on the angle plates, and a worm wheel meshing with the worms;

[0026] The worm gear is fixed on the transmission rod, a gear is fixed on the transmission rod with a pin, the gear is meshed with a rack, and the top of the rack is vertically welded and fixed to the bottom of the lifting plate.

[0027] The two ends of the worm are connected to the bed frame and the bottom end of the angle plate by bearings, and the two ends of the transmission rod are connected to the vertical end bearings of the angle plate.

[0028] Through the above technical solution, the worm wheel and worm are used as mechanical transmission. Since the worm wheel and worm are self-locking, the adjusted lifting plate will not reset itself and can maintain a fixed state. At the same time, the worm is located at the bottom of the bed frame, so that accidental touch will not occur after adjustment.

[0029] In the above-mentioned special anesthesia bed for ear, nose and throat surgery, the support plate is an arc-shaped structure as a whole, and a group of guide rods are welded and fixed to the bottom surface of the support plate, and the bottom ends of the guide rods pass through the sliding sleeves.

[0030] Through the above technical solution, sponge pads are bonded to the surfaces of the support plate and the rubber strip, so that when supporting the neck and head, the comfort can be improved and discomfort to the patient can be avoided.

[0031] In the above-mentioned anesthesia bed specially used for ear, nose and throat surgery, the expansion end of the bottom end of the second airbag does not contact the surface of the crossbar, and the side surface of the second airbag is fixedly bonded to the groove wall of the opening groove.

[0032] Through the above technical solution, before gas is filled, the sliding sleeve can slide freely on the cross bar. After gas is filled into the second airbag, the top and bottom surfaces of the second airbag expand. At this time, the bottom surface of the second airbag will fit with the surface of the cross bar after expansion, and friction can be generated through extrusion, thereby achieving the limitation of the sliding sleeve.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] (1) A head fixation system that adapts to patients of different body shapes and ages: This invention provides a flexible head fixation solution by designing multiple rubber strips and lifting plates. Specifically, the rubber strips are combined to form a plane. When the patient's head is placed on the plane, the rubber strips affected by the gravity of the head will move downward, while the rubber strips not affected by gravity will remain in place. This changes the overall shape of the rubber strip from a plane to an arc, which can better fit the shape of the patient's head. This design not only prevents the patient's head from shaking during surgery, but also can automatically adjust according to the patient's head shape and weight. It is suitable for patients of different ages and body shapes, from children to adults. This greatly expands the scope of application of the anesthesia bed and is suitable for a wide range of clinical application scenarios.

[0035] (2) Flexible and efficient neck support device: The support plate in the present invention moves laterally through the sliding sleeve, allowing horizontal adjustment on the crossbar. At the same time, the support plate can also move vertically in the sliding sleeve through the guide rod, thereby achieving high flexibility. This design greatly improves the support capacity for the patient's neck, allowing the doctor to better fix the patient's neck during anesthesia to avoid affecting the surgical operation due to unstable neck posture. In addition, sponge pads are bonded to the surface of the support plate and rubber strip, which increases the patient's comfort, especially during long-term surgery, reducing the discomfort caused by improper support.

[0036] (3) Multi-directional head posture adjustment to meet complex surgical requirements: The present invention realizes multi-directional posture adjustment of the patient's head during surgery through the design of two sets of lifting plates. First, by lifting and lowering the lifting plate, the doctor can adjust the head left and right, providing a wider operating angle for the surgery. At the same time, the rubber strip is combined with the airbag. By inflating or deflating the airbag, the rubber strip can drive the patient's head up and down, thereby achieving the up and down lifting or falling of the head. The air pressure system allows the doctor to make detailed adjustments to the patient's head according to the needs of the surgery, ensuring that the patient always maintains the most appropriate posture during the operation. This precise adjustment method controlled by air pressure avoids the errors and inconveniences that may occur during manual adjustment. At the same time, the rubber strip is made of sturdy materials to ensure that it will not be excessively deformed when supporting the patient's head, avoiding unnecessary collisions between the patient and the fixing device. Furthermore, this flexible adjustment method enables the doctor to quickly and accurately adjust the patient's head posture according to the different needs of the surgery, greatly improving the convenience and accuracy of the surgical operation, and is particularly suitable for surgical scenes that require precise operations such as ENT.

[0037] (4) Self-locking function ensures fixation effect and improves surgical safety: The present invention adopts a mechanical transmission design of worm gear and worm, which has a self-locking function and can prevent the lifting plate from resetting itself after adjustment. This design is particularly important during surgery, ensuring that after the head is fixed, the patient's head posture can be maintained stably and will not be accidentally moved due to mechanical looseness or misoperation, thereby improving the safety and stability of the surgery. This design is particularly suitable for patients who require long-term surgery and reduces the risks during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which

[0039] Figure 1 A top view of the present invention;

[0040] Figure 2 It is a side view of the second bed board and the lifting board of the present invention;

[0041] Figure 3 It is a three-dimensional diagram of the second bed board and the lifting board of the present invention;

[0042] Figure 4 A bottom view of the present invention;

[0043] Figure 5 It is a three-dimensional diagram of the fixing box and the rubber strip of the present invention;

[0044] Figure 6 It is a cross-sectional view of the fixing box and the rubber strip of the present invention;

[0045] Figure 7 It is a cross-sectional view of the cross bar and the sliding sleeve of the present invention;

[0046] Figure 8 It is a top cross-sectional view of the second bed board and the lifting board of the present invention.

[0047] In the figure: 1. bed frame; 2. first bed board; 3. second bed board; 4. lifting board; 5. cross bar; 6. vertical bar; 7. fixing box; 8. rubber strip; 9. rotating shaft; 10. elastic spring; 11. first air bag; 12. first air duct; 13. angle plate; 14. worm; 15. worm wheel; 16. transmission rod; 17. gear; 18. rack; 19. guide strip; 20. sliding groove; 21. sliding sleeve; 22. guide rod; 23. support plate; 24. second air bag; 25. second air duct; 26. first cavity; 27. second cavity; 28. connecting hose; 29. ​​first branch pipe; 30. second branch pipe; 31. connecting pipe; 32. through groove. DETAILED DESCRIPTION

[0048] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0050] like Figure 1 , Figure 2 and Figure 7 As shown, the embodiment of the present invention discloses an anesthesia bed dedicated to ear, nose and throat surgery, comprising a bed frame 1, a first bed board 2 and a second bed board 3 arranged in the bed frame 1, and a head fixing device arranged between the first bed board 2 and the second bed board 3.

[0051] The first bed board 2 and the second bed board 3 are both provided with a notch at the opposite ends. The notches on the first bed board 2 and the second bed board 3 are combined into a rectangular through groove 32. The head fixing device is located in the through groove 32. The two ends of the cross bar 5 are welded and fixed to the notches of the first bed board 2 and the second bed board 3.

[0052] The head fixing device comprises a cross bar 5, a lifting plate 4 symmetrically arranged about the cross bar 5, and a sliding sleeve 21 sleeved on the cross bar 5. The lifting plate 4 passes through a plurality of vertical bars 6. A fixing box 7 is welded and fixed to the top of each vertical bar 6. A rubber strip 8 for supporting the head is arranged in the fixing box 7. A supporting plate 23 for supporting the neck is arranged on the sliding sleeve 21. An elastic spring 10 is sleeved on the vertical bar 6. Both ends of the elastic spring 10 are welded and fixed to the fixing box 7 and the lifting plate 4.

[0053] During anesthesia, the patient can lie flat on the first bed board 2, and the sliding sleeve 21 can be moved on the crossbar 5 according to the patient's body shape to adjust the position of the support plate 23. When adjusted to a suitable position, the patient's neck is supported by the support plate 23;

[0054] The vertical rod 6 props up the fixing box 7, and the fixing box 7 can move vertically on the lifting plate 4 through the vertical rod 6. When the elastic spring 10 is at a natural length, the rubber strips 8 on the multiple fixing boxes 7 can form a plane to ensure that the patient's head can be covered. When the back of the patient's head is placed on the multiple rubber strips 8, the rubber strips 8 under the weight of the patient's head will drive the fixing box 7 downward. After the fixing box 7 moves downward, it will compress the elastic spring 10, and the elastic potential energy generated by the elastic spring 10 will support and fix the patient's head. At this time, the multiple rubber strips 8 are changed from a plane shape to an arc shape, which can wrap the patient's head, so that the patient's head can be better fixed to avoid shaking.

[0055] The bed frame 1 is provided with a variety of medical equipment interfaces, including but not limited to anesthesia machine interface, suction device interface, monitor interface, etc., to facilitate the quick connection and operation of various equipment during surgery;

[0056] At the same time, a threaded column is arranged on the bed frame 1, and a fixing plate is arranged on the top of the threaded column. The height of the fixing plate can be adjusted by the threaded column. Two U-shaped grooves are arranged on the fixing plate, so that the threaded catheter of the ventilator can be fixed to prevent the threaded catheter of the ventilator from sagging and deformation, so as to reduce the pressure of the threaded catheter of the ventilator on the patient's oral cavity, nasal cavity and throat, and at the same time ensure the normal operation of the ventilator.

[0057] like Figure 2 , Figure 3 and Figure 4As shown, in this embodiment, a driving mechanism for driving the lifting plate 4 to move vertically is provided on the bed frame 1, and the driving mechanism includes two angle plates 13 welded and fixed to the bottom surface of the bed frame 1, and two worms 14 arranged on the angle plates 13, and a worm wheel 15 meshing with the worm 14, the worm wheel 15 is sleeved and fixed on a transmission rod 16, a gear 17 is fixed on the transmission rod 16 by a bayonet, and the gear 17 is meshed and connected with a rack 18, the top of the rack 18 is vertically welded and fixed to the bottom surface of the lifting plate 4, both ends of the worm 14 are connected to the bed frame 1 and the bottom end of the angle plate 13 by bearings, and both ends of the transmission rod 16 are connected to the vertical end bearings of the angle plate 13.

[0058] A group of guide bars 19 are welded and fixed to the outer walls of both sides of the lifting plate 4 , and sliding grooves 20 adapted to the guide bars 19 are provided at the recess of the second bed board 3 and on both sides of the cross bar 5 , and the guide bars 19 are inserted into the sliding grooves 20 .

[0059] The two worms 14 are located on the same angle plate 13, so that the two worms 14 can be turned on one side of the bed frame 1 for quick adjustment. When the worm 14 is turned clockwise, the worm 14 can drive the worm wheel 15 to rotate, and then the worm wheel 15 can drive the transmission rod 16 to rotate axially.

[0060] The gear 17 rotates synchronously with the transmission rod 16, and can drive the lifting plate 4 to move by meshing with the rack 18. Since the guide bar 19 can only slide vertically in the sliding groove 20, the lifting plate 4 can only move vertically upward. By rotating one worm gear 15 clockwise and another worm gear 15 counterclockwise, one lifting plate 4 moves up and down and the other lifting plate 4 moves downward, and the head will rotate toward the side of the descending lifting plate 4, thereby realizing the rotation of the head. By making the two lifting plates 4 move up and down one by one, the posture adjustment of the head can be completed.

[0061] like Figure 5 and Figure 6 As shown, in this embodiment, a first airbag 11 is fixedly bonded to the inner wall of the bottom end of the fixed box 7, the expansion end of the first airbag 11 is in contact with the bottom surface of the rubber strip 8, the first airbag 11 is connected to the first air guide tube 12, the rubber strip 8 is in the shape of a long strip as a whole, the bottom surface of the rubber strip 8 is inclined, the top surface of the rubber strip 8 extends out from the fixed box 7, a rotating shaft 9 fixedly bonded to the rubber strip 8 passes through one side of the rubber strip 8, both ends of the rotating shaft 9 are connected to the bearings of the fixed box 7, two adjacent fixed boxes 7 are parallel to each other and in contact with each other, the top surface of the fixed box 7 is open, and the side of the fixed box 7 close to the rotating shaft 9 is open.

[0062] Before normal use, a certain amount of gas needs to be filled into the first airway 12, so that the first airbag 11 will expand upward toward the top surface. The first airbag 11 can push the rubber strip 8 to rotate around the rotation axis 9 through deformation, and make the rubber strip 8 horizontal, so that the patient's head can be stably supported;

[0063] When a certain amount of gas is continuously filled into the first airway 12, the first airbag 11 continues to expand. The first airbag 11 increases in volume and continues to push the rubber strip 8 to rotate around the rotation axis 9. In this way, the side of the rubber strip 8 away from the rotation axis 9 tilts upward, thereby lifting the patient's head upward.

[0064] When the gas of the first airbag 11 is released through the first air duct 12, the first airbag 11 is contracted and cannot support the rubber strip 8. Then, the rubber strip 8 will tilt downward around the rotation axis 9 under the weight of the head, and the patient's head will fall downward.

[0065] In this way, during surgery, the patient's head can be turned left and right, or up and down, with a large adjustment range, which can better meet the doctor's surgical needs.

[0066] like Figure 7 As shown, in this embodiment, the support plate 23 is an arc-shaped structure as a whole, and a group of guide rods 22 are welded and fixed to the bottom surface of the support plate 23. The bottom ends of the guide rods 22 pass through the sliding sleeve 21. The top of the sliding sleeve 21 is provided with an open groove, and a second air bag 24 is arranged in the open groove. The top expansion end of the second air bag 24 is in contact with the bottom surface of the support plate 23, and the second air bag 24 is connected to the second air guide pipe 25. The bottom expansion end of the second air bag 24 does not contact the surface of the cross bar 5, and the side of the second air bag 24 is fixedly bonded to the groove wall of the open groove.

[0067] After the position of the support plate 23 is adjusted by the sliding sleeve 21, gas can be filled into the second airbag 24, and the second airbag 24 will expand toward the top and bottom surfaces. The top surface of the second airbag 24 will push the support plate 23 to move, and the support plate 23 can move vertically upward through the guide rod 22 until the support plate 23 fits against the patient's neck, and the bottom surface of the second airbag 24 will be squeezed against the cross bar 5. The friction force generated by the squeezing can limit the sliding sleeve 21 to prevent the support plate 23 from being displaced during the operation.

[0068] like Figure 1 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, in the present embodiment, a second cavity 27 is provided inside the second bed board 3, a first cavity 26 is provided inside the lifting board 4, a wall of the lifting board 4 at the top of the first cavity 26 is connected with the first air duct 12, a wall of the lifting board 4 at the top of the first cavity 26 is connected with a wall of the second bed board 3 at the top of the second cavity 27 through a connecting hose 28, a wall of the second bed board 3 at the bottom of the second cavity 27 is connected with a first branch pipe 29, one end of the second air duct 25 is connected with a second branch pipe 30, the first branch pipe 29 and the second branch pipe 30 are connected with a connecting pipe 31 through a tee, the connecting pipe 31 is connected with the air pump, the first air duct 12 is sealed and bonded to the lifting board 4, both ends of the connecting hose 28 are sealed and bonded to the second bed board 3 and the lifting board 4, the first branch pipe 29 is sealed and bonded to the second bed board 3, the first airbag 11 and the first air duct 12 as well as the second airbag 24 and the second air duct 25 are integrally formed.

[0069] Valves are provided on the first branch pipe 29 and the second branch pipe 30. When the valve on the first branch pipe 29 is closed, the air pump injects gas into the second branch pipe 30 through the connecting pipe 31, and the gas is injected into the second airbag 24 through the second air guide pipe 25, so as to achieve the height adjustment of the support plate 23. After the adjustment is completed, the valve on the second branch pipe 30 can be closed.

[0070] Then, the valve on the first branch pipe 29 is opened, and the air pump injects gas into the first branch pipe 29 through the connecting pipe 31. The gas will enter the second cavity 27, and then enter the two first cavities 26 through the connecting hose 28, and finally enter the first airbag 11 through the first air duct 12. In this way, the first airbag 11 can lift one side of the rubber strip 8 upward by expansion.

[0071] When the valve on the first branch pipe 29 is opened, the pressure relief valve of the air pump can be opened, so that the gas in the first airbag 11 can be released. After the first airbag 11 shrinks and becomes smaller in volume, one side of the rubber strip 8 will rotate downward.

[0072] Furthermore, by injecting gas into or releasing gas from the first branch tube 29, the patient's head can be lifted or lowered.

[0073] In the description of this specification, "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anesthesia bed for ear, nose and throat surgery, comprising a bed frame (1), a first bed board (2) and a second bed board (3) arranged in the bed frame (1), and a head fixing device arranged between the first bed board (2) and the second bed board (3), characterized in that: The head fixing device comprises a cross bar (5), a lifting plate (4) symmetrically arranged with respect to the cross bar (5), and a sliding sleeve (21) sleeved on the cross bar (5); the lifting plate (4) penetrates a plurality of groups of vertical bars (6); a fixing box (7) is welded and fixed at the top end of each group of vertical bars (6); an elastic spring (10) is sleeved on the vertical bar (6); both ends of the elastic spring (10) are welded and fixed to the fixing box (7) and the lifting plate (4); A rubber strip (8) for supporting the head is arranged in the fixing box (7), a first air bag (11) is fixedly bonded to the inner wall of the bottom end of the fixing box (7), an expansion end of the first air bag (11) is in contact with the bottom surface of the rubber strip (8), and the first air bag (11) is connected to a first air guide tube (12). The sliding sleeve (21) is provided with a support plate (23) for supporting the neck, the top of the sliding sleeve (21) is provided with an open groove, a second air bag (24) is provided in the open groove, the top expansion end of the second air bag (24) is in contact with the bottom surface of the support plate (23), and the second air bag (24) is connected with a second air guide pipe (25). The bed frame (1) is provided with a driving mechanism for driving the lifting plate (4) to move vertically. A second cavity (27) is provided inside the second bed board (3), a first cavity (26) is provided inside the lifting board (4), the lifting board (4) wall at the top of the first cavity (26) is connected to the first air guide pipe (12), the lifting board (4) wall at the top of the first cavity (26) is connected to the second bed board (3) wall at the top of the second cavity (27) via a connecting hose (28), and the second bed board (3) wall at the bottom of the second cavity (27) is connected to the first branch pipe (29). One end of the second air guide pipe (25) is connected to the second branch pipe (30), the first branch pipe (29) and the second branch pipe (30) are connected to a connecting pipe (31) via a tee, and the connecting pipe (31) is connected to the air pump.

2. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The first bed board (2) and the second bed board (3) are each provided with a notch at one end opposite to the other. The notches on the first bed board (2) and the second bed board (3) are combined into a rectangular through groove (32). The head fixing device is located in the through groove (32). The two ends of the cross bar (5) are welded and fixed to the notches of the first bed board (2) and the second bed board (3).

3. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: A group of guide bars (19) are welded and fixed to the outer walls of both sides of the lifting plate (4), and sliding grooves (20) adapted to the guide bars (19) are provided at the notch of the second bed plate (3) and on both sides of the cross bar (5), and the guide bars (19) are inserted into the sliding grooves (20).

4. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The first air guide tube (12) is sealed and bonded to the lifting plate (4), both ends of the connecting hose (28) are sealed and bonded to the second bed board (3) and the lifting plate (4), the first branch tube (29) is sealed and bonded to the second bed board (3), and the first air bag (11) and the first air guide tube (12) as well as the second air bag (24) and the second air guide tube (25) are all integrally formed.

5. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The rubber strip (8) is in the shape of a long strip as a whole, the bottom surface of the rubber strip (8) is inclined, and the top surface of the rubber strip (8) extends out from the fixing box (7). A rotating shaft (9) fixedly bonded to the rubber strip (8) passes through one side of the rubber strip (8), and both ends of the rotating shaft (9) are connected to the bearings of the fixed box (7).

6. The anesthesia bed for ear, nose and throat surgery according to claim 5, characterized in that: Two adjacent fixing boxes (7) are parallel to each other and fit together. The top surface of the fixing box (7) is open, and the side of the fixing box (7) close to the rotating shaft (9) is also open.

7. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The driving mechanism comprises two angle plates (13) welded and fixed to the bottom surface of the bed frame (1), two worms (14) arranged on the angle plates (13), and a worm wheel (15) meshing with the worms (14); The worm wheel (15) is sleeved and fixed on a transmission rod (16); a gear (17) is fixed on the transmission rod (16) by a bayonet; the gear (17) is meshedly connected with a rack (18); the top end of the rack (18) is vertically welded and fixed to the bottom surface of the lifting plate (4).

8. The anesthesia bed for ear, nose and throat surgery according to claim 7, characterized in that: Both ends of the worm (14) are connected to the bed frame (1) and the bottom end of the angle plate (13) by bearings, and both ends of the transmission rod (16) are connected to the vertical end bearings of the angle plate (13).

9. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The support plate (23) is an arc-shaped structure as a whole. A group of guide rods (22) are welded and fixed to the bottom surface of the support plate (23). The bottom ends of the guide rods (22) pass through the sliding sleeves (21).

10. The anesthesia bed for ear, nose and throat surgery according to claim 1, characterized in that: The expanded end at the bottom end of the second airbag (24) does not contact the surface of the crossbar (5), and the side surface of the second airbag (24) is fixedly bonded to the groove wall of the open groove.

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