Auxiliary intubation device for surgical nursing catheter

Abstract

According to the technical scheme, the surgical nursing catheter auxiliary intubation device comprises a nursing bed, a containing groove is formed in a backrest, a supporting block is contained in the backrest through the containing groove, telescopic rods are connected to the two sides of the supporting block, the telescopic rods are provided with sleeves, the sleeves are provided with insertion barrels and cotton barrels, and paraffin oil bags are arranged on the insertion barrels; a pair of third air bags is fixed on the inner side of the supporting groove of the supporting block; a communicated second connecting pipe is mounted between the third air bags and the fourth air bags; by starting a first electric push rod, a supporting block extends out of a storage groove, the head of a patient can be put into a supporting groove, the first electric push rod continues to extend, the patient is pushed to lower the head, the posture of the patient can be conveniently adjusted, a telescopic rod is repeatedly pulled, a third air bag is expanded, the head of the patient is prevented from being lifted, a pressing column is pressed, and a paraffin oil bag is broken; and the stomach tube passes through the cotton cylinder and is adhered with the paraffin oil, so that the discomfort is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of surgical nursing, and in particular to a surgical nursing catheter auxiliary intubation device. Background Art

[0002] A gastric tube is a curved and soft tubular device that is usually inserted into the esophagus through the mouth or nose by a doctor or nurse and then enters the stomach through the esophagus. It plays an important role in the medical field and can be used to help patients take in nutrition and empty gastric juice. It can also be used for operations such as drug administration and gastric juice sample collection. There are still some problems in the process of inserting a gastric tube:

[0003] 1. During the insertion of the gastric tube, in order to reduce friction and resistance, the gastric tube usually needs to be lubricated. However, when paraffin oil is directly applied to the gastric tube, if the patient does not cooperate, the gastric tube insertion operation will be more complicated and time-consuming. The gastric tube coated with paraffin oil will be exposed to the air for a period of time. During this period, dust in the air may come into contact with the paraffin oil and firmly adhere to the surface of the gastric tube, which can easily become a potential source of infection and increase the risk of nosocomial infection in patients.

[0004] 2. For patients in a coma, since they are unable to actively cooperate or keep their heads stable, it is usually necessary to manually hold up the patient's head to assist in the insertion of a gastric tube. However, this step is not only laborious, but also often requires the cooperation of multiple medical staff to complete, which increases the complexity and difficulty of the operation. In addition, the physical state of a comatose patient may be unstable, further increasing the challenge of gastric tube insertion;

[0005] 3. When faced with a patient who resists gastric tube insertion, medical staff usually use fixation devices such as restraints to limit the movement of the patient's head. However, this fixation method may cause strong discomfort to the patient and may even cause physical injuries such as strangulation. In addition, even if a restraint is used, the patient's head may still have a certain range of rotation, which will make the operation of gastric tube insertion more difficult and increase the risk and difficulty of the operation. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a surgical nursing catheter auxiliary intubation device which has comfortable head fixation, is easy to lubricate and has low operating difficulty.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A surgical care catheter auxiliary intubation device comprises a nursing bed, one end of the nursing bed is rotatably connected to a backrest, a rotatable second electric push rod is installed on the nursing bed, the telescopic end of the second electric push rod is rotatably connected to the backrest, the backrest is connected with a posture adjustment mechanism, the posture adjustment mechanism comprises a storage slot, the backrest is provided with a storage slot, the backrest is received by a support block through the storage slot, the support block is provided with a support slot, the bottom end of the backrest located inside the storage slot is provided with a first sliding frame and a sleeve frame, the first sliding frame is fixedly connected to the backrest, the sleeve frame is rotatably connected to the backrest, the sleeve frame is slidably buckled with a second sliding frame, a pair of control columns are installed on the support block, the pair of control columns are slidably connected to the first sliding frame and the second sliding frame respectively, the second sliding frame is away from the nursing bed, the bottom end of the backrest located inside the storage slot is provided with a rotatable first electric push rod, the telescopic end of the first electric push rod is rotatably connected to the support block;

[0009] The support block is connected with an auxiliary support mechanism, which includes a telescopic rod, both sides of the support block are connected with telescopic rods, and a support rod is installed on the telescopic end of the telescopic rod, a sleeve is rotatably connected between a pair of support rods, an inserting sleeve is inserted on the sleeve, a cotton cylinder is installed inside the inserting sleeve, a paraffin oil bag is provided on the inserting sleeve, and slots are provided on the sleeve, the inserting sleeve and the cotton cylinder;

[0010] The support block is connected to a fixing mechanism, and the fixing mechanism includes a slide slot, and slide slots are provided on both sides of the support block. The bottom end of the telescopic rod is slidably connected to the support block through the slide slot, and a first rack is slidably connected inside the support block, and a second rack is movably connected inside the support block. The bottom end of the telescopic rod is rotatably connected to the second rack, and a driving locking assembly for transmission is connected between the second rack and the first rack. A fourth airbag is provided inside the support block, and two ends of the fourth airbag are respectively fixed to the support block and the first rack, and a pair of third airbags are fixed to the support block on the inner side of the bracket, and a second connecting pipe connected to the third airbag and the fourth airbag is installed between the third airbag and the fourth airbag.

[0011] Preferably, the drive locking assembly includes a ratchet, which is rotatably connected to the support block, one end of the ratchet is meshed with the second rack, a coaxial gear is installed on the ratchet, and the gear is meshed with the first rack, a fixed block is installed on the support block, a pawl is slidably connected to the fixed block, a first spring is installed between the pawl and the fixed block, and the pawl is meshed with the ratchet through the first spring.

[0012] Preferably, a third spring is installed between the support block and the second rack, and the second rack is meshed with the ratchet through the third spring.

[0013] Preferably, a toggle rod is mounted on the pawl, the toggle rod is slidably connected to the support block, and the toggle rod extends out of the outer wall of the support block.

[0014] Preferably, a second spring is installed inside the fourth airbag, and two ends of the second spring are respectively in contact with the support block and the first rack through the fourth airbag.

[0015] Preferably, the bracket has a funnel-shaped structure, and the funnel-shaped tip of the bracket faces the nursing bed.

[0016] Preferably, a filling assembly is connected to the support block, and the filling assembly includes a first airbag. The support block is provided with the first airbag at the bottom end thereof located inside the bracket, and a second airbag is provided inside the storage groove. A first connecting tube is installed between the second airbag and the first airbag, and the two ends of the second airbag are fixedly connected to the support block and the backrest, respectively.

[0017] Preferably, a pressing column is slidably connected to the insert tube, and one end of the pressing column is in contact with the paraffin oil bag.

[0018] Preferably, the slots on the sleeve, the inserting tube and the cotton tube overlap with each other, and the slots are inclined.

[0019] Preferably, a pair of LED lamps are installed on the bracket block, and the pair of LED lamps are respectively arranged on both sides of the bracket.

[0020] Compared with the prior art, the present invention provides a surgical care catheter auxiliary intubation device, which has the following beneficial effects:

[0021] 1. The surgical nursing catheter auxiliary intubation device starts the first electric push rod, the support block extends out of the storage slot, and the patient's head can be placed inside the support slot. During the process of inserting the gastric tube, when the gastric tube reaches the throat, the patient needs to lower his head to promote the gastric tube to enter the esophagus. At this time, the first electric push rod can continue to extend to continue to push the support block to move upward. Since the length of the first sliding frame is fixed, the second sliding frame can slide on the sleeve frame, and the sleeve frame can rotate, thereby pushing the support block to rotate around the top of the first sliding frame through the control column, thereby pushing the patient to lower his head, which is convenient for adjusting the patient's posture.

[0022] 2. When the patient's head needs to be fixed during the gastric tube insertion process, the telescopic rod is repeatedly pulled downward, and the second rack drives the first rack to move through the ratchet and the gear, and the first rack pushes the fourth airbag to compress, and the second spring is compressed. The gas inside the fourth airbag enters the third airbag through the second connecting tube, and the third airbag expands. The third airbag conflicts with the patient's temple position, thereby limiting the patient's head from being lifted, thereby playing an auxiliary supporting role for the head.

[0023] 3. The surgical nursing catheter auxiliary intubation device often needs to lubricate the gastric tube during the process of inserting the gastric tube. Take out the disposable insertion tube in advance, insert it into the sleeve, press the pressing column, the paraffin oil bag ruptures, so that the paraffin oil soaks the cotton tube, and the gastric tube is inserted from one end of the cotton tube, so that the slot is downward, the support rod is pushed to extend the telescopic rod, the sleeve is close to the mouth, and the gastric tube is pushed to be inserted from the nostril. The gastric tube passes through the cotton tube, so that the paraffin oil adheres to the gastric tube, which increases lubrication and reduces discomfort. After the gastric tube is inserted, it can be pulled out from the slot, and the telescopic rod is pushed to rotate so that it is stored on one side of the support block, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A stereoscopic view of a surgical care catheter auxiliary intubation device proposed by the present invention;

[0025] Figure 2 A view of a backrest connection structure of the present invention;

[0026] Figure 3 A view of the telescopic rod connection structure of the present invention;

[0027] Figure 4 A view of a bracket connection structure of the present invention;

[0028] Figure 5 A view of a first rack connection structure of the present invention;

[0029] Figure 6 A view of a fixing block connection structure of the present invention;

[0030] Figure 7 A view of a sleeve connection structure of the present invention;

[0031] Figure 8 A view of a cotton tube connection structure of the present invention;

[0032] Fig. 9 It is a view of a second airbag connecting structure of the present invention.

[0033] In the figure: 1. nursing bed; 2. backrest; 3. posture adjustment mechanism; 31. support block; 32. bracket; 33. filling assembly; 331. first airbag; 332. second airbag; 333. first connecting pipe; 34. storage slot; 35. first slide frame; 36. first electric push rod; 37. second slide frame; 38. sleeve frame; 39. control column; 4. auxiliary support mechanism; 41. telescopic rod; 42. support rod; 43. sleeve; 44. pressing column; 45. inserting tube; 46 , cotton tube; 47, slot; 48, paraffin oil bag; 5, second electric push rod; 6, fixing mechanism; 61, slide groove; 62, third air bag; 63, first rack; 64, second connecting pipe; 65, drive locking assembly; 651, ratchet; 652, fixing block; 653, gear; 654, pawl; 655, first spring; 656, toggle rod; 66, second rack; 67, second spring; 68, fourth air bag; 69, third spring; 7, LED light. 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] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Embodiment 1:

[0037] Reference Figure 1 , Figure 2 , Figure 4 and Fig. 9A surgical nursing catheter auxiliary intubation device comprises a nursing bed 1, one end of the nursing bed 1 is rotatably connected to a backrest 2, a rotatable second electric push rod 5 is installed on the nursing bed 1, the telescopic end of the second electric push rod 5 is rotatably connected to the backrest 2, a posture adjustment mechanism 3 is connected to the backrest 2, the posture adjustment mechanism 3 comprises a storage groove 34, the backrest 2 is provided with a storage groove 34, the backrest 2 receives a support block 31 through the storage groove 34, the support block 31 is provided with a bracket 32, the bottom end of the backrest 2 located inside the storage groove 34 is provided with a first slide frame 35 and a sleeve frame 38, the first slide frame 35 is provided with a first slide frame 36, and the first slide frame 37 is provided with a first slide frame 38. 5 is fixedly connected to the backrest 2, the sleeve frame 38 is rotatably connected to the backrest 2, the sleeve frame 38 is slidably buckled with the second slide frame 37, a pair of control columns 39 are installed on the support block 31, the pair of control columns 39 are slidably connected to the first slide frame 35 and the second slide frame 37 respectively, the second slide frame 37 is away from the nursing bed 1, and the bottom end of the backrest 2 located inside the storage groove 34 is installed with a rotatable first electric push rod 36, the telescopic end of the first electric push rod 36 is rotatably connected to the support block 31, so that it is convenient to lift the head through the support block 31, which is convenient for the patient to lower his head and assist the gastric tube to be inserted into the esophagus.

[0038] In the present invention, the bracket 32 ​​is in a funnel-shaped structure, and the funnel-shaped tip of the bracket 32 ​​faces the nursing bed 1, so that the patient's head can be placed inside the bracket 32, which can prevent the patient from shaking his head.

[0039] In the present invention, a filling assembly 33 is connected to the support block 31, and the filling assembly 33 includes a first airbag 331. The support block 31 is located at the bottom end of the inner part of the bracket 32 ​​and the first airbag 331 is installed. A second airbag 332 is provided inside the storage groove 34. A first connecting pipe 333 is installed between the second airbag 332 and the first airbag 331. The two ends of the second airbag 332 are fixedly connected to the support block 31 and the backrest 2 respectively, so that the bracket 32 ​​can be filled when not in use to avoid depression.

[0040] In the present invention, a pair of LED lights 7 are installed on the bracket block 31 , and the pair of LED lights 7 are respectively arranged on both sides of the bracket slot 32 , so as to facilitate the quick finding of the position of the bracket block 31 and facilitate the insertion of the head into the bracket slot 32 .

[0041] Embodiment 2:

[0042] Based on Example 1, Figure 3 , Figure 7 and Figure 8A surgical care catheter auxiliary intubation device, an auxiliary support mechanism 4 is connected to a support block 31, the auxiliary support mechanism 4 includes a telescopic rod 41, both sides of the support block 31 are connected to the telescopic rod 41, a support rod 42 is installed on the telescopic end of the telescopic rod 41, a sleeve 43 is rotatably connected between a pair of support rods 42, an insert tube 45 is inserted into the sleeve 43, a cotton tube 46 is installed inside the insert tube 45, a paraffin oil bag 48 is provided on the insert tube 45, and a slot 47 is provided on the sleeve 43, the insert tube 45 and the cotton tube 46, so as to facilitate the support of the gastric tube and facilitate lubrication by paraffin oil.

[0043] In the present invention, a pressing column 44 is slidably connected to the insert tube 45 , and one end of the pressing column 44 abuts against the paraffin oil bag 48 , thereby puncturing the paraffin oil bag 48 .

[0044] In the present invention, the slots 47 on the sleeve 43, the inserting tube 45 and the cotton tube 46 overlap with each other, and the slots 47 are inclined, so that it is convenient to pull out the esophagus.

[0045] Embodiment 3:

[0046] Based on Example 2, Figure 5 and Figure 6 , a surgical care catheter auxiliary intubation device, a fixing mechanism 6 is connected to the support block 31, the fixing mechanism 6 includes a slide groove 61, and slide grooves 61 are provided on both sides of the support block 31. The bottom end of the telescopic rod 41 is slidably connected to the support block 31 through the slide groove 61, and a first rack 63 is slidably connected inside the support block 31, and a second rack 66 is movably connected inside the support block 31. The bottom end of the telescopic rod 41 is rotatably connected to the second rack 66, and a driving locking assembly 65 for transmission is connected between the second rack 66 and the first rack 63. A fourth airbag 68 is provided inside the support block 31, and the two ends of the fourth airbag 68 are respectively fixed on the support block 31 and the first rack 63. A pair of third airbags 62 are fixed on the inner side of the support block 31 located in the bracket 32, and a second connecting pipe 64 is installed between the third airbag 62 and the fourth airbag 68, so as to facilitate the fixing of the head, limit the lifting of the head, avoid the patient's resistance, and avoid causing harm.

[0047] In the present invention, the driving locking assembly 65 includes a ratchet 651, which is rotatably connected to the support block 31, one end of the ratchet 651 is meshed with the second rack 66, a coaxial gear 653 is installed on the ratchet 651, the gear 653 is meshed with the first rack 63, a fixed block 652 is installed on the support block 31, a pawl 654 is slidably connected to the fixed block 652, a first spring 655 is installed between the pawl 654 and the fixed block 652, the pawl 654 is meshed with the ratchet 651 through the first spring 655, so that the first rack 63 has a larger thrust, thereby increasing the resistance force when the third airbag 62 is expanded, and facilitating continuous pressurization.

[0048] In the present invention, a third spring 69 is installed between the support block 31 and the second rack 66 , and the second rack 66 is meshed with the ratchet 651 through the third spring 69 , thereby preventing the second rack 66 from being disengaged from the ratchet 651 .

[0049] In the present invention, a toggle rod 656 is installed on the pawl 654, and the toggle rod 656 is slidably connected to the support block 31. The toggle rod 656 extends out of the outer wall of the support block 31, so as to facilitate pushing the pawl 654 to release the limit.

[0050] In the present invention, a second spring 67 is installed inside the fourth airbag 68 , and two ends of the second spring 67 respectively contact the support block 31 and the first rack 63 through the fourth airbag 68 , thereby facilitating the first rack 63 to be reset.

[0051] Working principle: the patient can lie on the nursing bed 1, and the elevation angle of the backrest 2 can be controlled by controlling the second electric push rod 5, so as to facilitate the adjustment of the patient's posture. When inserting a gastric tube into the patient, the LED light 7 is started, and the LED light 7 is on, so that it is convenient to observe the position of the support block 31 through the bed sheet, so that the patient's head is resting on the top of the bracket 32. When the bracket 31 is inside the storage groove 34, the second air bag 332 will be compressed, and the air inside the second air bag 332 enters the inside of the first air bag 331 through the first connecting pipe 333, so that the first air bag 331 is expanded. Therefore, during normal rest, the bracket 32 ​​is filled with the expanded first air bag 331, so that the bed sheet will not be concave, and the head can be supported. When inserting a gastric tube into the patient, the first electric push rod 36 is started, and the first electric push rod 36 is extended, so as to push the bracket 31 to move forward. 1 slides upward, the support block 31 slides smoothly along the first slide frame 35 and the second slide frame 37 through a pair of control columns 39, and the support block 31 extends out of the storage slot 34. At the same time, the compressed second air bag 332 will be stretched, and the air inside the first air bag 331 enters the second air bag 332, the bracket 32 ​​is exposed, and the head can be put into the bracket 32. During the insertion of the gastric tube, it is necessary to make the patient lower his head when the gastric tube reaches the throat to promote the gastric tube to enter the esophagus. At this time, the first electric push rod 36 can continue to extend to continue to push the support block 31 to move upward. Since the length of the first slide frame 35 is fixed, the second slide frame 37 can slide on the sleeve frame 38, and the sleeve frame 38 can rotate, thereby pushing the support block 31 to rotate around the top of the first slide frame 35 through the control column 39, thereby pushing the patient to lower his head, which is convenient for adjusting the patient's posture;

[0052] During the process of inserting the gastric tube, when it is necessary to fix the patient's head, the telescopic rod 41 is rotated outward and repeatedly pulled downward, thereby driving the second rack 66 to slide downward. Under the action of the third spring 69, the second rack 66 and the ratchet 651 are meshed, thereby driving the ratchet 651 to rotate, driving the gear 653 to rotate, and the gear 653 is smaller, so it has a greater force to push the first rack 63 to move, and the first rack 63 pushes the fourth airbag 68 to compress, and the second spring 67 is compressed. The internal gas of the fourth airbag 68 enters the interior of the third airbag 62 through the second connecting tube 64, and the third airbag 62 expands. The third airbag 62 is connected to the temple of the patient's head. The position of the ratchet 651 is in conflict with the position of the ratchet 651, thereby limiting the lifting of the patient's head, thereby playing an auxiliary supporting role for the head. The pawl 654 unidirectionally controls the rotation of the ratchet 651, thereby limiting the extension of the second spring 67. When the second rack 66 is pushed upward, the ratchet 651 cannot rotate, so that the second rack 66 and the ratchet 651 are staggered, and the third spring 69 is compressed, so that it is easy to pull the second rack 66 again, thereby compressing the fourth airbag 68 again, so that the third airbag 62 has a larger pressure, thereby preventing the patient's head from being lifted. When it is not needed, the toggle rod 656 is pushed, the first spring 655 is compressed, and the pawl 654 and the ratchet 651 are disengaged, so that it is easy to reset the first rack 63;

[0053] During the process of inserting a gastric tube, it is often necessary to lubricate the gastric tube. Take out the disposable insert tube 45 in advance and insert it into the sleeve 43. Press the pressing column 44 to rupture the paraffin oil capsule 48, so that the paraffin oil soaks the cotton tube 46. Insert the gastric tube from one end of the cotton tube 46, so that the slot 47 is downward, push the support rod 42, and make the telescopic rod 41 telescope. Put the sleeve 43 close to the mouth, push the gastric tube, and insert it from the nostril. The gastric tube passes through the cotton tube 46, so that the paraffin oil adheres to the gastric tube, which increases lubrication and reduces discomfort. After the gastric tube is inserted, it can be pulled out from the slot 47, so as to push the telescopic rod 41 to rotate and be stored on one side of the support block 31, which is convenient to use.

[0054] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surgical nursing catheter auxiliary intubation device, comprising a nursing bed (1), one end of the nursing bed (1) is rotatably connected to a backrest (2), a rotatable second electric push rod (5) is installed on the nursing bed (1), and the telescopic end of the second electric push rod (5) is rotatably connected to the backrest (2), characterized in that: The backrest (2) is connected to a posture adjustment mechanism (3), the posture adjustment mechanism (3) comprises a storage groove (34), the backrest (2) is provided with a storage groove (34), the backrest (2) receives a support block (31) through the storage groove (34), the support block (31) is provided with a bracket (32), the bottom end of the backrest (2) located inside the storage groove (34) is provided with a first sliding frame (35) and a sleeve frame (38), the first sliding frame (35) and the backrest (2) are fixedly connected, the sleeve frame (38) and the backrest are fixedly connected. (2) a rotational connection, wherein a second sliding frame (37) is slidably buckled on the sleeve frame (38), a pair of control columns (39) are installed on the support block (31), and the pair of control columns (39) are slidably connected to the first sliding frame (35) and the second sliding frame (37) respectively, the second sliding frame (37) is away from the nursing bed (1), and a first rotatable electric push rod (36) is installed at the bottom end of the backrest (2) located inside the storage groove (34), and the telescopic end of the first electric push rod (36) is rotatably connected to the support block (31); The support block (31) is connected to an auxiliary support mechanism (4), the auxiliary support mechanism (4) comprising a telescopic rod (41), both sides of the support block (31) are connected to the telescopic rod (41), a support rod (42) is installed on the telescopic end of the telescopic rod (41), a sleeve (43) is rotatably connected between a pair of the support rods (42), an inserting sleeve (45) is inserted into the sleeve (43), a cotton cylinder (46) is installed inside the inserting sleeve (45), a paraffin oil bag (48) is provided on the inserting sleeve (45), and a slot (47) is provided on the sleeve (43), the inserting sleeve (45) and the cotton cylinder (46); The support block (31) is connected to a fixing mechanism (6), the fixing mechanism (6) comprises a slide groove (61), both sides of the support block (31) are provided with a slide groove (61), the bottom end of the telescopic rod (41) is slidably connected to the support block (31) through the slide groove (61), the support block (31) is internally slidably connected to a first rack (63), the support block (31) is internally movably connected to a second rack (66), the bottom end of the telescopic rod (41) is rotatably connected to the second rack (66), A driving locking assembly (65) for transmission is connected between the second rack (66) and the first rack (63); a fourth airbag (68) is provided inside the support block (31); two ends of the fourth airbag (68) are respectively fixed to the support block (31) and the first rack (63); a pair of third airbags (62) are fixed on the inner side of the support block (31) located in the bracket (32); and a second connecting pipe (64) is installed between the third airbag (62) and the fourth airbag (68).

2. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: The driving locking assembly (65) comprises a ratchet (651), the support block (31) is rotatably connected with the ratchet (651), one end of the ratchet (651) is meshed with the second rack (66), a coaxial gear (653) is mounted on the ratchet (651), the gear (653) is meshed with the first rack (63), a fixed block (652) is mounted on the support block (31), a pawl (654) is slidably connected to the fixed block (652), a first spring (655) is mounted between the pawl (654) and the fixed block (652), and the pawl (654) is meshed with the ratchet (651) via the first spring (655).

3. A surgical care catheter auxiliary intubation device according to claim 2, characterized in that: A third spring (69) is installed between the support block (31) and the second rack (66), and the second rack (66) is meshed with the ratchet (651) through the third spring (69).

4. A surgical care catheter auxiliary intubation device according to claim 2, characterized in that: The ratchet pawl (654) is provided with a toggle rod (656), the toggle rod (656) is slidably connected to the support block (31), and the toggle rod (656) extends out of the outer wall of the support block (31).

5. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: A second spring (67) is installed inside the fourth airbag (68), and two ends of the second spring (67) are respectively in contact with the support block (31) and the first rack (63) through the fourth airbag (68).

6. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: The bracket (32) has a funnel-shaped structure, and the funnel-shaped tip of the bracket (32) faces the nursing bed (1).

7. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: The support block (31) is connected to a filling assembly (33), the filling assembly (33) comprising a first airbag (331), the support block (31) being installed with the first airbag (331) at the bottom end inside the support groove (32), a second airbag (332) being arranged inside the storage groove (34), a first connecting pipe (333) being installed between the second airbag (332) and the first airbag (331), and two ends of the second airbag (332) being fixedly connected to the support block (31) and the backrest (2), respectively.

8. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: The inserting tube (45) is slidably connected with a pressing column (44), and one end of the pressing column (44) is in contact with the paraffin oil bag (48).

9. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: The slots (47) on the sleeve (43), the inserting tube (45) and the cotton tube (46) overlap with each other, and the slots (47) are inclined.

10. A surgical care catheter auxiliary intubation device according to claim 1, characterized in that: A pair of LED lamps (7) are mounted on the bracket block (31), and the pair of LED lamps (7) are respectively arranged on both sides of the bracket groove (32).

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