Bronchoscope oral intubation guiding device for thoracic surgery nursing

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a bronchoscope oral intubation guiding device for thoracic surgery nursing, which comprises a lower supporting plate and an upper top plate, and two electric telescopic rods are symmetrically and fixedly connected between the lower supporting plate and the upper top plate; the device further comprises a pressure sensor, an active tongue pressing mechanism, an opening pressure feedback mechanism, a stop buffer triggering mechanism, an opening action synchronous transmission mechanism, an opening degree feedback mechanism and a tongue pressing action control mechanism. The oral cavity of a patient can be actively opened and kept fixed, the opening degree of the mouth can be automatically adjusted and controlled based on the bearing capacity of the oral cavities of different patients, intermittent buffering work for opening the oral cavity of the patient can be actively conducted, and the problems that the patient is too uncomfortable and excessively injured are solved; the tongue pressing stroke can be automatically adjusted and controlled based on the opening degree of a patient, and the larger the opening degree of the patient is, the smaller the tongue pressing stroke is.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical equipment, and particularly relates to a bronchoscope oral intubation guiding device for thoracic surgery nursing. Background Art

[0002] Bronchoscopy is a common thoracic surgery nursing operation for observing and diagnosing respiratory diseases. During bronchoscopy, oral intubation is one of the commonly used methods.

[0003] When performing oral intubation treatment and examination, the patient is often required to open the mouth voluntarily, and another tool is used to press the root of the patient's tongue to expose the glottis. Then, an endotracheal tube is inserted, and a tracheal cannula is introduced through the endotracheal tube to complete tracheal intubation. Currently, only relying on the patient's voluntary long-term control of mouth opening and the medical staff manually using tools to press the root of the patient's tongue will make the whole process very unstable, which greatly affects the stable progress of oral intubation work. Therefore, related devices have emerged, such as a bronchoscope oral intubation guiding device for thoracic surgery nursing proposed in the patent with the patent announcement number CN2217518721U.

[0004] During bronchoscopy, when complex disease diagnoses occur, the patient needs to keep the mouth open for a long time to ensure sufficient operation time of the bronchoscope in the airway. For patients with difficult airways, such as obesity, short and thick necks, abnormal pharyngeal and laryngeal structures, etc., it will be more difficult to insert the bronchoscope, and it will take longer to find the correct airway path and adjust the angle and position of the bronchoscope, resulting in the patient's mouth also needing to be kept open for a long time. Prolonged mouth opening of the patient will cause the chewing muscles, muscles around the temporomandibular joint, etc. to be in a continuous stretched state, easily causing muscle fatigue and soreness, and symptoms such as difficulty in opening the mouth and weakness in chewing are likely to occur after the examination. Summary of the Invention

[0005] The purpose of the present invention is to address the above problems and provide a bronchoscope oral intubation guiding device for thoracic surgery nursing.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A bronchoscope oral intubation guiding device for thoracic surgery nursing includes a lower support plate and an upper top plate. Two electric telescopic rods are symmetrically and fixedly connected between the lower support plate and the upper top plate. The device further includes:

[0007] A pressure sensor is embedded in the upper end of the upper top plate. A layer of anti-slip rubber pads is fixedly connected to both the lower end of the lower support plate and the upper end of the upper top plate.

[0008] A main tongue pressing mechanism is fixedly installed at the upper end of the lower support plate.

[0009] The mouth-opening pressure feedback mechanism is installed inside the lower support plate;

[0010] The stop buffer trigger mechanism is installed inside the mouth-opening pressure feedback mechanism and is electrically controlled and connected to the electric telescopic rod;

[0011] The mouth-opening action synchronous transmission mechanism is installed between the lower support plate and the upper top plate;

[0012] The mouth-opening degree feedback mechanism is installed inside the lower support plate and is in transmission connection with the mouth-opening action synchronous transmission mechanism;

[0013] The tongue-depressing action control mechanism is installed inside the mouth-opening degree feedback mechanism and is electrically controlled and connected to the active tongue-depressing mechanism.

[0014] In the above-mentioned bronchoscope oral intubation guiding device for thoracic surgery nursing, the active tongue-depressing mechanism includes two side plates symmetrically and fixedly installed at the upper end of the lower support plate. A tongue-depressing plate is rotatably connected between the two side plates. A reduction motor for driving the rotation of the tongue-depressing plate is fixedly installed on the outer wall of one of the side plates.

[0015] In the above-mentioned bronchoscope oral intubation guiding device for thoracic surgery nursing, the mouth-opening pressure feedback mechanism includes a pressure feedback shell. A plurality of guide slide rods arranged side by side are fixedly connected to the inner wall of the pressure feedback shell. The same sliding plate is slidably sleeved outside the plurality of guide slide rods. A plurality of return springs sleeved outside the guide slide rods are fixedly connected to the opposite sides of the sliding plate and the pressure feedback shell. A thrust permanent magnet plate is fixedly installed on the upper side wall of the sliding plate. A thrust electromagnetic plate arranged opposite to the thrust permanent magnet plate is fixedly installed on the inner wall of the pressure feedback shell. A pressure in-place switch arranged opposite to the sliding plate is also fixedly installed on the upper side of the inner wall of the pressure feedback shell.

[0016] In the above-mentioned bronchoscope oral intubation guiding device for thoracic surgery nursing, the stop buffer trigger mechanism includes a reciprocating lead screw rotatably connected to the lower side of the inner wall of the pressure feedback shell. A positive and negative motor for driving the self-rotation of the reciprocating lead screw is fixedly installed on the outer wall of the pressure feedback shell. A trigger plate is threadedly sleeved on the rod wall of the reciprocating lead screw. A trigger switch arranged opposite to the trigger plate is fixedly installed on the lower side wall of the sliding plate.

[0017] In the above-mentioned bronchoscope oral intubation guiding device for thoracic surgery nursing, the mouth-opening action synchronous transmission mechanism includes two fixing plates symmetrically and fixedly installed inside the lower support plate. A winding and unwinding cylinder is rotatably connected between the two fixing plates through a transmission shaft. A torsion spring sleeved outside the transmission shaft is fixedly connected to the opposite sides of the winding and unwinding cylinder and the fixing plate. A pulling rope is wound around the winding and unwinding cylinder. The upper end of the pulling rope penetrates through the upper end of the lower support plate and is fixedly connected to the lower end of the upper top plate.

[0018] In the above-mentioned bronchoscope oral intubation guide device for thoracic surgery nursing, the mouth opening and closing degree feedback mechanism includes an opening and closing degree feedback shell, the inner wall of the opening and closing degree feedback shell is rotatably connected with a transmission screw, and the outer wall of the opening and closing degree feedback shell is also fixedly installed with a reduction gear box, one end of the transmission screw is fixedly connected to the output end of the reduction gear box, one end of the transmission shaft is fixedly connected to the input end of the reduction gear box, the rod wall of the transmission screw is threadedly sleeved with a transmission plate, and the lower side of the inner wall of the opening and closing degree feedback shell is fixedly installed with an opening and closing position switch arranged opposite to the transmission plate.

[0019] In the above-mentioned bronchoscope oral intubation guide device for thoracic surgery nursing, the tongue pressing action control mechanism includes a synchronous screw rotatably connected to the inner wall of the opening and closing degree feedback shell, and the outer wall of the opening and closing degree feedback shell is fixedly provided with a synchronous motor for driving the synchronous screw to rotate, and the rod wall of the synchronous screw is threadedly sleeved with a synchronous plate, and the upper end side wall of the transmission plate is fixedly provided with a synchronous stop switch arranged opposite to the synchronous plate.

[0020] In the above-mentioned bronchoscope oral intubation guiding device for thoracic surgery nursing, a limit slider is fixedly mounted on the outer wall of the transmission plate, and a limit slot matching and slidingly connected with the limit slider is opened on the inner wall of the opening and closing degree feedback shell.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Through the lower support plate, upper top plate, electric telescopic rod, pressure sensor, mouth opening pressure feedback mechanism, and mouth opening synchronous transmission mechanism, the patient's mouth can be actively opened and kept fixed, providing a more stable operating space for bronchoscopy, and the mouth opening degree and mouth opening pressure of the patient's mouth can be monitored in real time. When either the mouth opening degree or the mouth opening pressure reaches the monitoring threshold, the electric telescopic rod is controlled to stop working. When the mouth opening degree reaches the threshold, it means that the patient's mouth has reached the optimal opening degree and there is no need to continue the mouth opening action. When the mouth opening pressure reaches the threshold, it means that the patient's oral cavity has been subjected to excessive mouth opening pressure. Continuing the mouth opening action will cause excessive damage to the patient's oral cavity, temporomandibular joint and muscles. The mouth opening degree is automatically adjusted based on the tolerance of the oral cavity of different patients, making the active assisted mouth opening action more accurate and safe.

[0023] 2. By means of the set mouth-opening pressure feedback mechanism, the stop buffer trigger mechanism, and the electric telescopic rod, when the bronchoscope examination work lasts for a long time due to the patient's condition or their own factors, it will actively carry out the stop buffer work for the patient's mouth opening, avoiding the problems of the patient being overly uncomfortable and suffering excessive damage, and being able to automatically adjust the trigger frequency of the stop buffer based on the size of the mouth-opening pressure. The greater the mouth-opening pressure, the higher the trigger frequency of the stop buffer.

[0024] 3. By means of the set mouth-opening degree feedback mechanism, the tongue-depressing action control mechanism, and the active tongue-depressing mechanism, it can assist in pressing down the root of the patient's tongue, providing a better space for bronchoscope examination, and automatically regulating the stroke of tongue depression based on the size of the patient's mouth-opening degree. The greater the patient's mouth-opening degree, the smaller the stroke of tongue depression, reducing the pressure on the root of the patient's tongue and alleviating the patient's discomfort. Because a larger mouth-opening degree can expose the oral cavity and pharynx more fully, the main purpose of tongue depression is to prevent the tongue from blocking the line of sight, and there is no need for too much pressure to further expand the field of view. On the contrary, when the patient's mouth-opening degree is small, in order to obtain sufficient operating space and a clear field of view, it is necessary to appropriately increase the stroke and pressure of tongue depression to obtain sufficient examination operating space. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 is a front cross-sectional structural schematic diagram of the present invention;

[0027] Figure 3 is a structural schematic diagram of the active tongue-depressing mechanism of the present invention;

[0028] Figure 4 is a cross-sectional structural schematic diagram of the mouth-opening pressure feedback mechanism and the stop buffer trigger mechanism of the present invention;

[0029] Figure 5 is Figure 4 a partial enlarged view in

[0030] Figure 6 is Figure 2 a partial enlarged view in

[0031] Figure 7 is a cross-sectional structural schematic diagram of the mouth-opening movement synchronous transmission mechanism of the present invention;

[0032] Figure 8 is a cross-sectional structural schematic diagram of the mouth-opening degree feedback mechanism and the tongue-depressing action control mechanism of the present invention.

[0033] In the figure: 1 lower support plate, 2 active tongue depressing mechanism, 21 side plate, 22 tongue depressing plate, 23 reduction motor, 3 mouth opening pressure feedback mechanism, 31 pressure feedback shell, 32 guide slide bar, 33 sliding plate, 34 return spring, 35 thrust permanent magnet plate, 36 thrust electromagnetic plate, 37 pressure in place switch, 4 pause buffer trigger mechanism, 41 reciprocating screw rod, 42 forward and reverse motor, 43 trigger plate, 44 trigger switch, 5 mouth opening action synchronous transmission mechanism, 51 fixed plate, 52 transmission shaft, 53 retracting cylinder, 54 torsion spring, 55 pulling rope, 6 mouth opening and closing degree feedback mechanism, 61 opening and closing degree feedback shell, 62 transmission screw, 63 reduction gear box, 64 transmission plate, 65 opening and closing in place switch, 7 tongue depressing action control mechanism, 71 synchronous screw, 72 synchronous motor, 73 synchronous plate, 74 synchronous stop switch, 8 upper top plate, 9 electric telescopic rod, 10 pressure sensor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] like Figures 1 - 8 As shown, a bronchoscope oral intubation guide device for thoracic surgery nursing includes a lower support plate 1 and an upper top plate 8, two electric telescopic rods 9 are symmetrically fixedly connected between the lower support plate 1 and the upper top plate 8, and also includes:

[0036] The pressure sensor 10 is embedded in the upper end of the upper top plate 8, and the lower end of the lower support plate 1 and the upper end of the upper top plate 8 are fixedly connected with a layer of anti-slip rubber pad;

[0037] The active tongue depressing mechanism 2 is fixedly mounted on the upper end of the lower support plate 1. The active tongue depressing mechanism 2 includes two side plates 21 symmetrically fixedly mounted on the upper end of the lower support plate 1. A tongue depressor 22 is rotatably connected between the two side plates 21. A reduction motor 23 for driving the tongue depressor 22 to rotate is fixedly mounted on the outer wall of one of the side plates 21.

[0038] The opening pressure feedback mechanism 3 is installed inside the lower support plate 1, and the opening pressure feedback mechanism 3 includes a pressure feedback shell 31. The inner wall of the pressure feedback shell 31 is fixedly connected to multiple guide slide bars 32 arranged side by side. The multiple guide slide bars 32 are slidably sleeved with the same sliding plate 33. The sliding plate 33 and the pressure feedback shell 31 have a plurality of return springs 34 sleeved outside the guide slide bars 32 fixedly connected on the opposite side. The upper end side wall of the sliding plate 33 is fixedly installed with a thrust permanent magnet plate 35. The inner wall of the pressure feedback shell 31 is fixedly installed with a thrust electromagnetic plate 36 arranged opposite to the thrust permanent magnet plate 35. The upper side of the inner wall of the pressure feedback shell 31 is also fixedly installed with a pressure in place switch 37 arranged opposite to the sliding plate 33.

[0039] The rest buffer trigger mechanism 4 is installed inside the mouth-opening pressure feedback mechanism 3 and is electrically controlled and connected to the electric telescopic rod 9. The rest buffer trigger mechanism 4 includes a reciprocating lead screw 41 rotatably connected to the lower side of the inner wall of the pressure feedback housing 31. A positive and negative motor 42 for driving the reciprocating lead screw 41 to rotate self is fixedly installed on the outer wall of the pressure feedback housing 31. A trigger plate 43 is threadedly sleeved on the rod wall of the reciprocating lead screw 41. A trigger switch 44 disposed opposite to the trigger plate 43 is fixedly installed on the lower side wall of the sliding plate 33.

[0040] The mouth-opening action synchronous transmission mechanism 5 is installed between the lower support plate 1 and the upper top plate 8. The mouth-opening action synchronous transmission mechanism 5 includes two fixing plates 51 symmetrically and fixedly installed inside the lower support plate 1. A winding and unwinding cylinder 53 is rotatably connected between the two fixing plates 51 through a transmission shaft 52. A torsion spring 54 sleeved on the transmission shaft 52 is fixedly connected to the opposite sides of the winding and unwinding cylinder 53 and the fixing plate 51. A pulling rope 55 is wound around the winding and unwinding cylinder 53. The upper end of the pulling rope 55 penetrates through the upper end of the lower support plate 1 and is fixedly connected to the lower end of the upper top plate 8.

[0041] The mouth-opening degree feedback mechanism 6 is installed inside the lower support plate 1 and is in transmission connection with the mouth-opening action synchronous transmission mechanism 5. The mouth-opening degree feedback mechanism 6 includes an opening and closing degree feedback housing 61. A transmission screw 62 is rotatably connected to the inner wall of the opening and closing degree feedback housing 61. A reduction gearbox 63 is also fixedly installed on the outer wall of the opening and closing degree feedback housing 61. One end of the transmission screw 62 is fixedly connected to the output end of the reduction gearbox 63. One end of the transmission shaft 52 is fixedly connected to the input end of the reduction gearbox 63. A transmission plate 64 is threadedly sleeved on the rod wall of the transmission screw 62. An opening and closing in-place switch 65 disposed opposite to the transmission plate 64 is fixedly installed on the lower side of the inner wall of the opening and closing degree feedback housing 61. A limiting slider is fixedly installed on the outer wall of the transmission plate 64. A limiting chute matched with the limiting slider is opened on the inner wall of the opening and closing degree feedback housing 61.

[0042] The tongue pressing action control mechanism 7 is installed inside the mouth-opening degree feedback mechanism 6 and is electrically controlled and connected to the active tongue pressing mechanism 2. The tongue pressing action control mechanism 7 includes a synchronous screw 71 rotatably connected to the inner wall of the opening and closing degree feedback housing 61. A synchronous motor 72 for driving the synchronous screw 71 to rotate self is fixedly installed on the outer wall of the opening and closing degree feedback housing 61. A synchronous plate 73 is threadedly sleeved on the rod wall of the synchronous screw 71. A synchronous stop switch 74 disposed opposite to the synchronous plate 73 is fixedly installed on the upper side wall of the transmission plate 64.

[0043] The PLC controller is installed inside the lower support plate 1 and is electrically controlled and connected to the active tongue pressing mechanism 2, the mouth-opening pressure feedback mechanism 3, the rest buffer trigger mechanism 4, the mouth-opening action synchronous transmission mechanism 5, the mouth-opening degree feedback mechanism 6 and the tongue pressing action control mechanism 7 respectively.

[0044] The operating principle of the present invention is described as follows: Place the lower support plate 1 on the lower teeth of the patient, and place the upper top plate 8 under the upper teeth of the patient. Control the electric telescopic rod 9 to push the upper top plate 8 through the PLC controller, so that the upper top plate 8 moves away from the lower support plate 1, thereby actively opening the patient's oral cavity. A layer of anti-slip rubber pad coated on the surfaces of the lower support plate 1 and the upper top plate 8 can generate frictional resistance with the patient's tooth part, so that the whole device remains relatively fixed with the patient's tooth part without sliding, thereby enabling the patient to expose the throat part. Then, insert a tracheal catheter deep into the trachea and insert an inspection cannula;

[0045] The pressure sensor 10 embedded at the upper end of the upper top plate 8 monitors the extrusion pressure value of the patient's upper teeth in real time. The PLC controller controls the power supply device to supply power to the thrust electromagnetic plate 36 based on the signal fed back by the pressure sensor 10. The thrust electromagnetic plate 36 is energized to generate the same magnetic force as the thrust permanent magnet plate 35, thereby generating a thrust on the sliding plate 33, so that the sliding plate 33 slides along the guide slide rod 32 against the elastic force of the return spring 34;

[0046] During the process of the upper top plate 8 moving away from the lower support plate 1, it will drive the upper end of the pulling rope 55 to move synchronously. The release of the pulling rope 55 drives the winding and unwinding cylinder 53 to rotate against the elastic force of the torsion spring 54, thereby driving the transmission shaft 52 to rotate synchronously. The transmission shaft 52 cooperates with the reduction gearbox 63 to drive the transmission screw 62 to rotate self-rotationally. Through the threaded socket connection between the transmission screw 62 and the transmission plate 64, the transmission plate 64 moves within the opening degree feedback housing 61;

[0047] When the opening pressure reaches the threshold value, the supply current of the thrust electromagnetic plate 36 reaches the maximum at this time. At this time, the sliding plate 33 will press on the pressure in-place switch 37. When the opening degree reaches the threshold value, the transmission plate 64 will press on the opening in-place switch 65 at this time. When either the pressure in-place switch 37 or the opening in-place switch 65 is pressed and triggered, the PLC controller will receive the signal and control the electric telescopic rod 9 to stop operating, completing the active opening work of the patient's oral cavity;

[0048] The PLC controller further controls the synchronous motor 72 to actuate. The synchronous motor 72 drives the synchronous screw 71 to rotate self - sufficiently. Through the threaded socket connection between the synchronous screw 71 and the synchronous plate 73, the synchronous plate 73 moves within the opening - degree feedback housing 61 until the synchronous plate 73 presses on the synchronous stop switch 74. Then the PLC controller controls the synchronous motor 72 to stop acting. When the synchronous motor 72 is working, the PLC controller controls the reduction motor 23 to actuate synchronously. The reduction motor 23 provides a deflecting force to the tongue - pressing plate 22, causing the tongue - pressing plate 22 to squeeze the root of the patient's tongue, so that the patient's glottis is exposed for convenient examination. Similarly, after the synchronous stop switch 74 is pressed and triggered, the PLC controller controls the reduction motor 23 to stop acting. Specifically, when the patient's oral cavity is opened due to the relative movement of the upper top plate 8 and the lower support plate 1, the greater the opening - degree of the patient's oral cavity, the greater the moving distance of the transmission plate 64. As a result, the spacing distance between the synchronous stop switch 74 connected to the side wall of the transmission plate 64 and the synchronous plate 73 becomes smaller, and then the downward pressing stroke of the tongue - pressing plate 22 becomes smaller. Because a larger opening - degree of the mouth can expose the oral cavity and pharynx more fully, the main purpose of pressing the tongue is to prevent the tongue from blocking the line of sight, and not too much pressure is needed to further expand the field of view. On the contrary, when the opening - degree of the patient's mouth is small, in order to obtain sufficient operating space and a clear field of view, it is necessary to appropriately increase the tongue - pressing stroke and pressure to obtain sufficient examination operating space;

[0049] After the active opening of the patient's oral cavity and the pressing of the patient's tongue root are completed, the PLC controller controls the forward - reverse motor 42 to actuate. The forward - reverse motor 42 drives the reciprocating screw 41 to rotate self - sufficiently. Through the threaded socket connection between the reciprocating screw 41 and the trigger plate 43, the trigger plate 43 moves within the pressure - feedback housing 31 until the trigger plate 43 presses on the trigger switch 44 on the side wall of the sliding plate 33. At this time, the PLC controller controls the external alarm to sound, reminding the medical staff that the patient's mouth - opening time is too long and needs to rest and buffer. And the PLC controller controls the electric telescopic rod 9 to retract, reducing the opening - degree of the patient's oral cavity and relaxing the pressure on the patient's oral cavity. This process lasts for 60 s. After the relaxation work is completed, due to the trigger switch 44 being pressed and triggered, the PLC controller controls the forward - reverse motor 42 to switch to the reverse - power - supply circuit, so that the reciprocating screw 41 rotates in reverse, waiting for the next time the trigger plate 43 presses on the trigger switch 44 for another rest - and - buffer action. Specifically, when the greater the opening pressure of the patient's mouth, the greater the sliding distance of the sliding plate 33. The sliding plate 33 drives the trigger switch 44 to move a greater distance, making the spacing distance between the trigger switch 44 and the trigger plate 43 smaller. As a result, the trigger plate 43 only needs to move a shorter stroke to press the trigger switch 44, making the rest - and - buffer frequency at the patient's oral cavity higher, and better avoiding the problem that an overly large - pressure mouth - opening is more likely to cause damage to the patient's oral cavity.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A bronchoscope oral intubation guiding device for thoracic surgical care, comprising a lower support plate (1) and an upper top plate (8), and two electric telescopic rods (9) are symmetrically and fixedly connected between the lower support plate (1) and the upper top plate (8), characterized in that, It also includes: A pressure sensor (10) is embedded at the upper end of the upper top plate (8). Anti-slip rubber pads are fixedly connected to the lower end of the lower support plate (1) and the upper end of the upper top plate (8). A main tongue pressing mechanism (2) is fixedly installed at the upper end of the lower support plate (1). An opening pressure feedback mechanism (3) is installed inside the lower support plate (1). A pause buffer trigger mechanism (4) is installed inside the opening pressure feedback mechanism (3) and is electrically controlled and connected to the electric telescopic rod (9). An opening action synchronous transmission mechanism (5) is installed between the lower support plate (1) and the upper top plate (8). An opening degree feedback mechanism (6) is installed inside the lower support plate (1) and is in transmission connection with the opening action synchronous transmission mechanism (5). A tongue pressing action control mechanism (7) is installed inside the opening degree feedback mechanism (6) and is electrically controlled and connected to the main tongue pressing mechanism (2).

2. The bronchoscope oral intubation guiding device for thoracic surgical care according to claim 1, characterized in that, The main tongue pressing mechanism (2) includes two side plates (21) symmetrically and fixedly installed at the upper end of the lower support plate (1). A tongue pressing plate (22) is rotatably connected between the two side plates (21). A reduction motor (23) for driving the tongue pressing plate (22) to rotate is fixedly installed on the outer wall of one of the side plates (21).

3. The bronchoscope oral intubation guiding device for thoracic surgical care according to claim 1, wherein, The opening pressure feedback mechanism (3) includes a pressure feedback shell (31). A plurality of guide slide rods (32) arranged side by side are fixedly connected to the inner wall of the pressure feedback shell (31). The same sliding plate (33) is slidably sleeved on the outer walls of the plurality of guide slide rods (32). A plurality of return springs (34) sleeved on the guide slide rods (32) are fixedly connected between the sliding plate (33) and the opposite side of the pressure feedback shell (31). A thrust permanent magnet plate (35) is fixedly installed on the upper side wall of the sliding plate (33). A thrust electromagnetic plate (36) opposite to the thrust permanent magnet plate (35) is fixedly installed on the inner wall of the pressure feedback shell (31). A pressure in-place switch (37) opposite to the sliding plate (33) is also fixedly installed on the upper side of the inner wall of the pressure feedback shell (31).

4. The bronchoscope oral intubation guiding device for thoracic surgical care according to claim 3, wherein, The pause buffer trigger mechanism (4) includes a reciprocating lead screw (41) rotatably connected to the lower side of the inner wall of the pressure feedback shell (31). A positive and negative motor (42) for driving the reciprocating lead screw (41) to rotate is fixedly installed on the outer wall of the pressure feedback shell (31). A trigger plate (43) is threadedly sleeved on the rod wall of the reciprocating lead screw (41). A trigger switch (44) opposite to the trigger plate (43) is fixedly installed on the lower side wall of the sliding plate (33).

5. A bronchoscope oral intubation guiding device for thoracic surgical care according to claim 1, characterized in that, The mouth-opening motion synchronous transmission mechanism (5) includes two symmetrically fixed and installed fixing plates (51) inside the lower support plate (1). A winding cylinder (53) is rotatably connected between the two fixing plates (51) through a transmission shaft (52). A torsion spring (54) sleeved on the transmission shaft (52) is fixedly connected to the opposite side of the winding cylinder (53) and the fixing plate (51). A pulling rope (55) is wound around the winding cylinder (53). The upper end of the pulling rope (55) penetrates through the upper end of the lower support plate (1) and is fixedly connected to the lower end of the upper top plate (8).

6. The bronchoscope oral intubation guiding device for thoracic surgical nursing according to claim 5, characterized in that, The mouth-opening degree feedback mechanism (6) includes a degree-of-opening feedback housing (61). A transmission screw rod (62) is rotatably connected to the inner wall of the degree-of-opening feedback housing (61). A reduction gearbox (63) is also fixedly installed on the outer wall of the degree-of-opening feedback housing (61). One end of the transmission screw rod (62) is fixedly connected to the output end of the reduction gearbox (63). One end of the transmission shaft (52) is fixedly connected to the input end of the reduction gearbox (63). A transmission plate (64) is threadedly sleeved on the rod wall of the transmission screw rod (62). A degree-of-opening in-place switch (65) opposite to the transmission plate (64) is fixedly installed on the lower side of the inner wall of the degree-of-opening feedback housing (61).

7. The bronchoscope oral intubation guiding device for thoracic surgical nursing according to claim 6, characterized in that, The tongue-pressing motion control mechanism (7) includes a synchronous screw rod (71) rotatably connected to the inner wall of the degree-of-opening feedback housing (61). A synchronous motor (72) for driving the synchronous screw rod (71) to rotate self is fixedly installed on the outer wall of the degree-of-opening feedback housing (61). A synchronous plate (73) is threadedly sleeved on the rod wall of the synchronous screw rod (71). A synchronous stop switch (74) opposite to the synchronous plate (73) is fixedly installed on the upper side wall of the transmission plate (64).

8. A bronchoscope oral intubation guiding device for thoracic surgery nursing according to claim 6, characterized in that, A limiting slider is fixedly installed on the outer wall of the transmission plate (64). A limiting sliding groove matched with the limiting slider is opened on the inner wall of the degree-of-opening feedback housing (61).

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