Auxiliary device for respiratory recovery of critical patient

Abstract

The invention relates to the technical field of medical instruments, and discloses an auxiliary device for respiratory recovery of critical patients, which comprises a cabinet body, a mounting plate is fixedly connected in the cabinet body, the auxiliary device further comprises an air bag assembly, the air bag assembly comprises an arc-shaped plate, an air bag is arranged on the lower surface of the arc-shaped plate, and a communicating pipe is fixedly connected to the top of the air bag. The outer surface of the communicating pipe is in threaded connection with a rotary knob, four rectangular through holes are formed in the two sides of the arc-shaped plate in a penetrating mode, and bandages are fixedly connected into the two rectangular through holes. The sputum excretion assisting device can effectively assist a critical patient in sputum excretion, the air bag is driven by the air suction and exhaust assembly to repeatedly inflate and deflate, high-frequency air vibration is generated to act on the thoracic cavity of the patient, the thoracic cavity is repeatedly pressed to promote sputum in the respiratory tract to rapidly fall off, the problem that the sputum of the critical patient is difficult to excrete is solved, and the respiratory tract is kept unobstructed; the risks of unsmooth breathing and the like caused by sputum blockage are reduced, and the positive significance is achieved for improving the breathing condition of a patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an auxiliary device for respiratory recovery of critically ill patients. Background Art

[0002] In emergency medicine, some critically ill patients need machines to help them resume breathing. The breathing assistance device inputs oxygen into the patient's mouth and nose to promote the patient's passive breathing, thereby preventing critically ill patients from having difficulty breathing independently and affecting their vital signs.

[0003] When the respiratory assistance device assists the patient in breathing, the input oxygen passes through the patient's respiratory tract, and some patients may have phlegm inside the respiratory tract. However, due to the serious damage to the body functions of critically ill patients, their own cough reflex and expectoration ability are significantly weakened or even lost. The retention of sputum in the airway will block the airway, narrow the airway diameter, increase airflow resistance, cause the patient's ventilation dysfunction, insufficient oxygen intake and obstructed carbon dioxide discharge, and then cause hypoxemia and hypercapnia, threatening the patient's life safety. To this end, the present invention solves the above-mentioned problems by proposing an auxiliary device for respiratory recovery in critically ill patients. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an auxiliary device for respiratory recovery of critically ill patients, which can utilize an air bag to quickly and repeatedly inflate and deflate, thereby generating high-frequency air vibrations to act on the patient's chest cavity, thereby repeatedly compressing the chest cavity and promoting the rapid shedding of sputum in the respiratory tract, thereby facilitating sputum discharge and achieving the purpose of assisting critically ill patients in breathing, thereby solving the above-mentioned technical problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary device for respiratory recovery of critically ill patients, comprising a cabinet, a mounting plate fixedly connected to the interior of the cabinet, and an airbag assembly, wherein the airbag assembly comprises an arc-shaped plate, an airbag bag is arranged on the lower surface of the arc-shaped plate, a connecting pipe is fixedly connected to the top of the airbag bag, a knob is threadedly connected to the outer surface of the connecting pipe, four rectangular through holes are penetrated and opened on both sides of the arc-shaped plate, and straps are fixedly connected to the interior of two of the rectangular through holes; An air intake and exhaust assembly, the air intake and exhaust assembly includes two support plates one connected to the upper surface of the mounting plate by screws, a column is rotatably connected between the two support plates one, a cam groove is provided on the outer surface of the column, a sliding block is slidably connected inside the cam groove, a V-shaped plate is rotatably connected to the end surface of the sliding block by a pin shaft, one end of the V-shaped plate is rotatably connected to a connecting rod by a pin shaft, and the outer surface of the V-shaped plate is connected to a side plate by a rotating shaft, the bottom end of the connecting rod is rotatably connected to a shaft rod, the two ends of the shaft rod are rotatably connected to a plunger head, the outer surface of the plunger head is sleeved with an air cylinder, and the bottom end of the air cylinder is fixedly connected to an air pipe; A speed regulating assembly, wherein the speed regulating assembly is fixedly connected to the upper surface of the mounting plate; The driving device comprises a supporting plate 2 fixedly connected to the upper surface of the mounting plate, and a driving motor is installed on the outer surface of the supporting plate 2.

[0006] Preferably, the outer surface of the strap is sewn with Velcro, a circular hole is opened on the top of the arc plate, the circular hole is used to insert a connecting tube from the bottom, and the upper surface of the airbag bag contacts the lower surface of the arc plate.

[0007] Preferably, a connecting pipe is inserted between the connecting pipe and the air pipe, and one end of the air pipe away from the air cylinder is connected to the side of the cabinet.

[0008] Preferably, the side plate is fixedly connected between two support plates, and the top of the air cylinder is connected to the lower surface of the mounting plate by bolts.

[0009] Preferably, a circular through hole is formed through the upper surface of the mounting plate, and the circular through hole is connected to the air cylinder.

[0010] Preferably, the speed regulation assembly includes a gantry, the gantry is fixedly connected to the upper surface of the mounting plate, and the upper surface of the gantry is fixedly connected to two support plates three, two support plates four and two support plates five, a No. 1 conical cylinder is rotatably connected between the two support plates three, a No. 2 conical cylinder is rotatably connected between the two support plates four, an adjusting rod is rotatably connected between the two support plates five, a sleeve is threadedly connected to the outer surface of the adjusting rod, two ear blocks are fixedly connected to the outer surface of the sleeve, a sleeve is fixedly connected between the two ear blocks, and a friction wheel is rotatably connected to the outer surface of the sleeve.

[0011] Preferably, one end of the No. 2 tapered cylinder is connected to the end shaft of the column through a coupling, and one end of the No. 1 tapered cylinder is connected to the output shaft of the driving motor through a coupling.

[0012] Preferably, one end of the adjusting rod is connected to the output shaft of the micro motor, the outer surface of the friction wheel contacts the conical surfaces of the No. 1 conical cylinder and the No. 2 conical cylinder, and the bearing is embedded inside the friction wheel, the inner ring of the bearing is sleeved on the outer surface of the sleeve, and the interior of the sleeve is slidably connected to a limit rod.

[0013] Preferably, a lining plate is fixedly connected to the inner wall of the cabinet, a suction pump is installed on the upper surface of the lining plate, the suction end of the suction pump is connected to a slender tube, one end of the slender tube is connected to a mask, the interior of the mask is connected to an insertion tube, the insertion tube is connected to the slender tube, and the top of the mask is connected to a breathing tube.

[0014] Preferably, the output end of the sputum suction pump is connected to a sputum discharge bag, a cabinet door is hinged on the front of the cabinet, and a control panel is installed on the top of the cabinet.

[0015] Compared with the prior art, the present invention provides a bronchoscopic lavage sampling anti-pollution device, which has the following beneficial effects: The present invention can effectively assist critically ill patients in expectorating. It drives the airbag bag to repeatedly inflate and deflate through the suction and exhaust components, generating high-frequency air vibrations to act on the patient's chest cavity. Repeated compression of the chest cavity causes respiratory tract sputum to fall off quickly, solving the problem of critically ill patients having difficulty in expectorating sputum. It helps to keep the respiratory tract unobstructed, reduce the risks of breathing difficulties caused by sputum blockage, and has a positive significance for improving the patient's respiratory condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A perspective view of the present invention; Figure 2 This is a front view diagram of the present invention after removing the cabinet door; Figure 3 It is a three-dimensional cross-sectional view of the air intake and exhaust assembly and the speed regulating assembly in the present invention; Figure 4 A three-dimensional diagram of the air intake and exhaust assembly of the present invention; Figure 5 It is a top view schematic diagram of the speed regulating assembly in the present invention; Figure 6 It is a stereoscopic diagram after removing the first cone cylinder and the second cone cylinder from the speed regulating assembly of the present invention; Figure 7 For the present invention Figure 6 A partial enlarged view of middle A; Figure 8 It is a schematic diagram of the connection of the mask, the elongated tube, the insertion tube and the breathing tube in the present invention; Fig. 9 is a three-dimensional diagram of the airbag assembly of the present invention; Fig.10 It is a front schematic diagram of the airbag assembly in the present invention.

[0017] Among them: 1. Cabinet; 2. Mounting plate; 3. Airbag assembly; 301. Arc plate; 302. Airbag bag; 303. Connecting pipe; 304. Knob; 305. Rectangular through hole; 306. Strap; 4. Intake and exhaust assembly; 401. Support plate 1; 402. Column; 403. Cam groove; 404. Sliding block; 405. V-shaped plate; 406. Connecting rod; 407. Side plate; 408. Shaft; 409. Plunger head; 410. Air cylinder; 411. Air pipe; 5. Speed ​​control assembly; 501. Gantry; 502. Support Support plate three; 503, support plate four; 504, support plate five; 505, cone tube No. 1; 506, cone tube No. 2; 507, adjustment rod; 508, sleeve; 509, ear block; 510, sleeve; 511, friction wheel; 512, micro motor; 513, limit rod; 6, driving device; 601, support plate two; 602, driving motor; 7, lining plate; 8, suction pump; 9, slender tube; 10, mask; 11, insertion tube; 12, breathing tube; 13, sputum bag; 14, cabinet door; 15, control panel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 10 The present invention provides an auxiliary device for respiratory recovery of critically ill patients, comprising a cabinet 1, a mounting plate 2 is fixedly connected to the interior of the cabinet 1, and an airbag assembly 3 is also included. The airbag assembly 3 includes an arc plate 301, an airbag bag 302 is arranged on the lower surface of the arc plate 301, a connecting pipe 303 is fixedly connected to the top of the airbag bag 302, a knob 304 is threadedly connected to the outer surface of the connecting pipe 303, and four rectangular through holes 305 are opened on both sides of the arc plate 301, wherein two rectangular through holes 305 are fixedly connected to the inside of straps 306; The air intake and exhaust assembly 4 includes two support plates 401 connected to the upper surface of the mounting plate 2 by screws, a column 402 is rotatably connected between the two support plates 401, a cam groove 403 is provided on the outer surface of the column 402, a sliding block 404 is slidably connected inside the cam groove 403, a V-shaped plate 405 is rotatably connected to the end surface of the sliding block 404 through a pin shaft, one end of the V-shaped plate 405 is rotatably connected to a connecting rod 406 through a pin shaft, and the outer surface of the V-shaped plate 405 is connected to a side plate 407 through a rotating shaft, the bottom end of the connecting rod 406 is rotatably connected to a shaft 408, both ends of the shaft 408 are rotatably connected to a plunger head 409, the outer surface of the plunger head 409 is sleeved with an air cylinder 410, and the bottom end of the air cylinder 410 is fixedly connected to an air pipe 411; A speed regulating assembly 5, the speed regulating assembly 5 is fixedly connected to the upper surface of the mounting plate 2; The driving device 6 includes a second supporting plate 601 fixedly connected to the upper surface of the mounting plate 2 , and a driving motor 602 is installed on the outer surface of the second supporting plate 601 .

[0020] For further details on the specific structure of the airbag assembly 3 in this application, please refer to Figure 9-10 As shown, the outer surface of the strap 306 is sewn and connected with Velcro, a circular hole is opened on the top of the arc plate 301, and the circular hole is used to insert the connecting pipe 303 from its bottom, the upper surface of the airbag bag 302 contacts the lower surface of the arc plate 301, and a connecting pipe is inserted between the connecting pipe 303 and the air pipe 411, and the end of the air pipe 411 away from the air cylinder 410 is connected to the side of the cabinet 1.

[0021] By placing the arc plate 301 on the chest of a critically ill patient, the airbag bag 302 can fit on the chest underwear of the critically ill patient. At this time, the front ends of the two straps 306 are passed through the other two rectangular through holes 305 respectively, and then the straps 306 are slightly tightened and glued together with the Velcro on the straps 306. In this way, the arc plate 301 can be fixed on the chest of the critically ill patient, so as to make preliminary preparations for the subsequent expectoration.

[0022] Further, regarding the specific structure of the air intake and exhaust assembly 4 in this application, please refer to Figure 3-Figure 4 As shown, the side plate 407 is fixedly connected between the two support plates 401, the top of the air cylinder 410 is connected to the lower surface of the mounting plate 2 by bolts, and a circular through hole is opened through the upper surface of the mounting plate 2, and the circular through hole is connected to the air cylinder 410.

[0023] After starting the driving motor 602, the speed regulating assembly 5 is driven to operate, and the speed regulating assembly 5 drives the column 402 to rotate, and the column 402 drives the cam groove 403 opened on its outer surface to rotate. Since the sliding block 404 slides in contact with the cam groove 403, and since the sliding block 404 is rotatably connected to the V-shaped plate 405, and the V-shaped plate 405 is rotatably connected to the side plate 407 through the rotating shaft, when the cam groove 403 rotates around the column 402, it can force the sliding block 404 to swing back and forth around the rotating shaft connecting the V-shaped plate 405 and the side plate 407, so that the V-shaped plate 405 drives the connecting rod 406 to reciprocate up and down, and the connecting rod 40 6 drives the plunger head 409 to move up and down continuously, so that the plunger head 409 repeatedly moves up and down in the air cylinder 410, and when the plunger head 409 moves upward, air is taken in to the air cylinder 410, and when the plunger head 409 moves downward, air is exhausted from the air cylinder 410, thus achieving repeated air intake and exhaust. Since the trachea 411 and the connecting pipe 303 are connected by a connecting pipe, the airbag bag 302 can be repeatedly inflated and deflated, thereby generating high-frequency air vibrations acting on the chest cavity of critically ill patients, thereby repeatedly compressing the chest cavity and promoting the rapid shedding of sputum on the respiratory tract, which is beneficial to accelerate sputum discharge and achieves the purpose of assisting critically ill patients in breathing.

[0024] Further, for the specific structure of the speed regulating component 5 in this application, please refer to Figure 3 , Figure 5-Figure 7 As shown, the speed regulating assembly 5 includes a gantry 501, which is fixedly connected to the upper surface of the mounting plate 2, and the upper surface of the gantry 501 is fixedly connected to two support plates 3 502, two support plates 4 503 and two support plates 5 504, a first conical cylinder 505 is rotatably connected between the two support plates 3 502, a second conical cylinder 506 is rotatably connected between the two support plates 4 503, and an adjusting rod 507 is rotatably connected between the two support plates 504, the outer surface of the adjusting rod 507 is threadedly connected to a sleeve 508, and the outer surface of the sleeve 508 is fixedly connected to two ear blocks 509, and the two ear blocks A sleeve 510 is fixedly connected between 509, and a friction wheel 511 is rotatably connected to the outer surface of the sleeve 510. One end of the second conical cylinder 506 is connected to the end shaft of the column 402 through a coupling, one end of the first conical cylinder 505 is connected to the output shaft of the drive motor 602 through a coupling, and one end of the adjusting rod 507 is connected to the output shaft of the micro motor 512. The outer surface of the friction wheel 511 contacts the conical surfaces of the first conical cylinder 505 and the second conical cylinder 506, and the friction wheel 511 is embedded with a bearing, the inner ring of the bearing is sleeved on the outer surface of the sleeve 510, and the inner sliding connection of the sleeve 510 is connected to a limit rod 513.

[0025] By starting the micro motor 512, the adjusting rod 507 can be driven to rotate. Under the action of the limiting rod 513, the adjusting rod 507 can drive the sleeve 508 to move, and the sleeve 508 drives the two ear blocks 509. The two ear blocks 509 drive the sleeve 510 to slide on the outer surface of the limiting rod 513. In this way, the sleeve 510 drives the friction wheel 511 to move. Since the friction wheel 511 frictionally contacts the No. 1 conical cylinder 505 and the No. 2 conical cylinder 506, when the driving motor 602 is started, the No. 1 conical cylinder 505 can be driven to rotate, and the No. 1 conical cylinder 505 drives the friction wheel 511 to rotate, and the friction wheel 511 drives the No. 2 conical cylinder 506 to rotate, and the No. 2 conical cylinder 506 can be driven to rotate. The first conical cylinder 506 drives the column 402 to rotate through the coupling. Since the position of the friction wheel 511 is adjustable, when the friction wheel 511 moves in the direction of the micro motor 512, the rotation speed of the second conical cylinder 506 decreases. On the contrary, when the friction wheel 511 moves in the opposite direction of the micro motor 512, the rotation speed of the second conical cylinder 506 increases. In this way, the rotation speed of the second conical cylinder 506 can be changed, and then the rotation speed of the column 402 can be changed. In this way, the swing frequency of the V-shaped plate 405 can be adjusted to achieve the rate of the up and down reciprocating motion of the plunger head 409, and then the speed of inflation and deflation of the airbag bag 302 can be adjusted to achieve the frequency of adjusting the chest compression.

[0026] For further information, see Figure 2 and Figure 8 As shown, a lining plate 7 is fixedly connected to the inner wall of the cabinet 1, a sputum suction pump 8 is installed on the upper surface of the lining plate 7, the suction end of the sputum suction pump 8 is connected to a slender tube 9, one end of the slender tube 9 is connected to a mask 10, an insertion tube 11 is connected to the inside of the mask 10, the insertion tube 11 is connected to the slender tube 9, a breathing tube 12 is connected to the top of the mask 10, a sputum bag 13 is connected to the output end of the sputum suction pump 8, a cabinet door 14 is hinged on the front of the cabinet 1, and a control panel 15 is installed on the top of the cabinet 1.

[0027] The entire device can be operated through the control panel 15. The mask 10 is worn on the patient's mouth and nose, and the insertion tube 11 is inserted into the mouth of the critically ill patient. The high-frequency air vibration can accelerate the shedding of sputum in the airway of the critically ill patient. When the suction pump 8 is started, negative pressure will be generated in the slender tube 9, and then negative pressure will be generated in the insertion tube 11, so that the shedding sputum can be sucked into the insertion tube 11. After the conduction of the slender tube 9, the sputum will eventually be discharged into the sputum bag 13. The sputum bag 13 can be replaced by opening the cabinet door 14. At the same time, a breathing tube 12 is provided on the top of the mask 10 to connect to a ventilator. In this way, oxygen can be provided to the critically ill patient while sputum is discharged. After sputum discharge, it is beneficial for the critically ill patient to inhale oxygen and maintain vital signs.

[0028] When in use, first use the airbag assembly 3, place the arc plate 301 on the chest of the critically ill patient, so that the airbag bag 302 fits the chest underwear of the critically ill patient, then pass the front ends of the two straps 306 through the other two rectangular through holes 305 respectively, tighten the straps 306 slightly, and use the Velcro on the outer surface of the straps 306 to adhere them, so as to fix the arc plate 301 on the chest of the critically ill patient, and then start the driving motor 602 in the driving device 6, the driving motor 602 drives the speed regulating assembly 5 to operate, and the speed regulating assembly 5 then drives the column 402 in the suction and exhaust assembly 4 to rotate, and the cam groove 403 on the outer surface of the column 402 rotates, so that the sliding block 404 swings back and forth around the rotating shaft connecting the V-shaped plate 405 and the side plate 407, and then the V-shaped plate 405 drives the connecting rod 406 to reciprocate up and down, and the connecting rod 406 drives the plunger head 409 to move up and down repeatedly in the air cylinder 410. When the air cylinder 410 moves, air is taken in, and when the air cylinder 410 moves downward, the connecting pipe 303 and the trachea 411 are connected through a connecting pipe, so that the airbag bag 302 can be repeatedly inflated and deflated, and high-frequency air vibration is generated to act on the chest cavity of critically ill patients, thereby promoting the rapid shedding of respiratory sputum; at the same time, the mask 10 is worn on the patient's mouth and nose, and the insertion tube 11 is inserted into the mouth of the critically ill patient, and the high-frequency air vibration is used to accelerate the shedding of sputum in the airway of the critically ill patient. The medical staff starts the sputum suction pump 8, and the sputum suction pump 8 generates negative pressure in the slender tube 9, and then generates negative pressure in the insertion tube 11, sucking the shedding sputum into the insertion tube 11, and conducting it through the slender tube 9, and finally discharging the sputum into the sputum bag 13. The sputum bag 13 can be replaced by opening the cabinet door 14, and the breathing tube 12 at the top of the mask 10 is used to connect the ventilator, so as to provide oxygen to the critically ill patient after sputum discharge to maintain vital signs.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for respiratory recovery of critically ill patients, comprising a cabinet (1), wherein a mounting plate (2) is fixedly connected to the interior of the cabinet (1), characterized in that: Also includes, An airbag assembly (3), the airbag assembly (3) comprising an arc-shaped plate (301), an airbag bag (302) being arranged on the lower surface of the arc-shaped plate (301), a connecting pipe (303) being fixedly connected to the top of the airbag bag (302), a knob (304) being threadedly connected to the outer surface of the connecting pipe (303), four rectangular through holes (305) being penetrated through both sides of the arc-shaped plate (301), wherein two of the rectangular through holes (305) are fixedly connected to the inside of binding straps (306); An air intake and exhaust assembly (4), the air intake and exhaust assembly (4) comprising two support plates (401) connected to the upper surface of the mounting plate (2) by screws, a column (402) rotatably connected between the two support plates (401), a cam groove (403) being provided on the outer surface of the column (402), a sliding block (404) being slidably connected inside the cam groove (403), and a V-shaped plate (405) being rotatably connected to the end surface of the sliding block (404) by a pin shaft. One end of the V-shaped plate (405) is rotatably connected to a connecting rod (406) via a pin shaft, and the outer surface of the V-shaped plate (405) is connected to a side plate (407) via a rotating shaft, the bottom end of the connecting rod (406) is rotatably connected to a shaft (408), both ends of the shaft (408) are rotatably connected to a plunger head (409), the outer surface of the plunger head (409) is sleeved with an air cylinder (410), and the bottom end of the air cylinder (410) is fixedly connected to an air pipe (411); A speed regulating assembly (5), wherein the speed regulating assembly (5) is fixedly connected to the upper surface of the mounting plate (2); A driving device (6), the driving device (6) comprising a second supporting plate (601) fixedly connected to the upper surface of the mounting plate (2), a driving motor (602) being mounted on the outer surface of the second supporting plate (601).

2. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: The outer surface of the binding strap (306) is sewn with Velcro, a circular hole is provided on the top of the arc-shaped plate (301), and the circular hole is used to insert the connecting tube (303) from the bottom thereof, and the upper surface of the airbag bag (302) contacts the lower surface of the arc-shaped plate (301).

3. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: A connecting pipe is inserted between the connecting pipe (303) and the air pipe (411), and one end of the air pipe (411) away from the air cylinder (410) is connected to the side of the cabinet (1).

4. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: The side plate (407) is fixedly connected between the two support plates (401), and the top of the air cylinder (410) is connected to the lower surface of the mounting plate (2) by means of bolts.

5. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: A circular through hole is formed through the upper surface of the mounting plate (2), and the circular through hole is connected to the air cylinder (410).

6. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: The speed regulating assembly (5) comprises a gantry (501), the gantry (501) being fixedly connected to the upper surface of the mounting plate (2), and the upper surface of the gantry (501) being fixedly connected to two support plates three (502), two support plates four (503) and two support plates five (504), a first conical cylinder (505) being rotatably connected between the two support plates three (502), a second conical cylinder (506) being rotatably connected between the two support plates four (503), an adjusting rod (507) being rotatably connected between the two support plates five (504), a sleeve (508) being threadedly connected to the outer surface of the adjusting rod (507), two ear blocks (509) being fixedly connected to the outer surface of the sleeve (508), a sleeve (510) being fixedly connected between the two ear blocks (509), and a friction wheel (511) being rotatably connected to the outer surface of the sleeve (510).

7. The auxiliary device for respiratory recovery of critically ill patients according to claim 6, characterized in that: One end of the second tapered cylinder (506) is connected to the end shaft of the column (402) via a coupling, and one end of the first tapered cylinder (505) is connected to the output shaft of the driving motor (602) via a coupling.

8. The auxiliary device for respiratory recovery of critically ill patients according to claim 6, characterized in that: One end of the adjustment rod (507) is connected to the output shaft of the micro motor (512), the outer surface of the friction wheel (511) contacts the conical surfaces of the first conical cylinder (505) and the second conical cylinder (506), and a bearing is embedded in the friction wheel (511), the inner ring of the bearing is sleeved on the outer surface of the sleeve (510), and the interior of the sleeve (510) is slidably connected to the limit rod (513).

9. The auxiliary device for respiratory recovery of critically ill patients according to claim 1, characterized in that: A lining plate (7) is fixedly connected to the inner wall of the cabinet (1), a sputum suction pump (8) is installed on the upper surface of the lining plate (7), the suction end of the sputum suction pump (8) is connected to a slender tube (9), one end of the slender tube (9) is connected to a mask (10), the interior of the mask (10) is connected to an insertion tube (11), the insertion tube (11) is connected to the slender tube (9), and the top end of the mask (10) is connected to a breathing tube (12).

10. The auxiliary device for respiratory recovery of critically ill patients according to claim 9, characterized in that: The output end of the sputum suction pump (8) is connected to a sputum discharge bag (13), a cabinet door (14) is hingedly connected to the front of the cabinet (1), and a control panel (15) is installed on the top of the cabinet (1).

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