Trachea cannula with air inlet protection structure

Abstract

The trachea cannula with the air inlet protection structure comprises a first hard tube, a second hard tube, a hose and an air tube, a handheld plate is rotatably installed on the side wall of the air tube, a limiting plate is fixedly installed on the side wall of the handheld plate, a circular ring block is rotatably connected to the side wall of the first hard tube in a limiting mode, and the circular ring block and the limiting plate are slidably connected in a penetrating mode; a transverse hole is formed in the side wall of the circular ring block, a transverse plate is slidably connected to the inner wall of the transverse hole, an inclined hole is formed in the side wall of the transverse plate, a vertical groove communicated with the transverse hole is formed in the inner wall of the circular ring block, an insertion plate is elastically connected to the inner wall of the vertical groove through a first spring, and a synchronous shaft is fixedly connected to the side wall of the insertion plate. By arranging the limiting plate, the external thread, the thread groove and other structures, when the air pipe and the first hard pipe are connected, a user holds the handheld plate by hand, the air pipe is inserted into the first hard pipe, then the air pipe is rotated, and the first hard pipe can move in the axial direction of the air pipe for installation and combination.

Description

Technical Field

[0001] The invention relates to the technical field of endotracheal cannula, and in particular to an endotracheal cannula with an air inlet protection structure. Background Art

[0002] Endotracheal intubation refers to the technique of inserting a special endotracheal tube into the trachea through the glottis, which can provide the best conditions for airway patency, ventilation and oxygen supply, respiratory suction and prevention of aspiration. The front end of the endotracheal tube is usually connected to the trachea of ​​the ventilator.

[0003] The existing endotracheal tube generally includes a soft tube. In order to prevent the patient from biting the soft tube, a hard tube is also provided at the patient's biting position. However, the existing hard tube is usually fixed to the soft tube by adhesive tape. This not only makes the connection not firm enough and is prone to slippage, but also causes the teeth to act on the hard tube for a long time, which is prone to cause toothache. In addition, in the operation of endotracheal tube, whether the endotracheal tube is firmly fixed is crucial. At present, the outer surface of the commonly used endotracheal tube is smooth. The methods currently used in clinical practice to fix the endotracheal tube generally include fixing it with adhesive tape or twill sandpaper tape or fixing it with a fixer clip. Regardless of the fixing method used, especially when the patient is agitated, pulled or pulled out with force, the endotracheal tube is easy to slip off, resulting in a serious incident of the endotracheal tube falling out of the trachea, and even causing the death of the patient.

[0004] To this end, we propose an endotracheal tube with an air inlet protection structure. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a tracheal cannula with an air inlet protection structure.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The tracheal cannula with an air inlet protection structure comprises a first hard tube, a second hard tube, a hose and an trachea, wherein a hand grip plate is rotatably mounted on a side wall of the trachea, a limit plate is fixedly mounted on a side wall of the hand grip plate, a circular ring block is limitedly rotatably connected to the side wall of the first hard tube, the circular ring block and the limit plate are slidably connected through the side wall of the circular ring block, a transverse hole is provided on the side wall of the circular ring block, a transverse plate is slidably connected to the inner wall of the transverse hole, an inclined hole is provided on the side wall of the transverse plate, a vertical groove connected to the horizontal hole is provided on the inner wall of the circular ring block, the inner wall of the vertical groove is elastically connected to a plug plate through a first spring, the side wall of the plug plate is fixedly connected to a synchronization shaft, a slot is provided on the side wall of the first hard tube, the side wall of the circular ring block is fixedly connected to a box body through a support rod, the inner wall of the box body is elastically connected to a piston through a second spring, the piston is sealingly slidably connected to the inside of the box body, and a second one-way tube is fixedly connected to the inner wall of the box body;

[0008] The first hard tube is provided with a driving mechanism for switching the state of the plug plate.

[0009] Preferably, the driving mechanism includes a plurality of annular teeth fixedly connected to the side wall of the first hard tube, the side wall of the limit plate is rotatably connected to a rotating rod, the side wall of the rotating rod is fixedly connected to a gear, one end of the rotating rod is fixedly connected to a circular plate, the side wall of the circular plate is fixedly connected to an eccentric rod, the side wall of the eccentric rod is rotatably connected to a push rod, the side wall of the limit plate is fixedly connected to a driving box, a slide is sealed and slidably connected inside the driving box, and one end of the push rod away from the eccentric rod is rotatably connected to the side wall of the slide.

[0010] Preferably, the side wall of the first hard tube is fixedly connected to an annular box, the inner wall of the drive box is penetrated and fixedly connected to a first one-way tube, one end of the first one-way tube away from the drive box is fixedly connected to the inner wall of the annular box, and one end of the second one-way tube away from the box body is fixedly connected to the inner wall of the drive box.

[0011] Preferably, a one-way discharge pipe is fixedly connected through the inner wall of the box body, a control valve is installed on the inner wall of the one-way discharge pipe, a circular box is slidably connected through the side wall of the second hard tube, a plurality of atomizing nozzles are embedded and installed on the inner wall of the circular box, and the other end of the one-way discharge pipe is fixedly connected to the plurality of atomizing nozzles.

[0012] Preferably, a cleaning cotton cloth is bonded and fixed to the inner wall of the circular box, and a heating resistance wire is embedded and installed on the inner wall of the circular box.

[0013] Preferably, the synchronization shaft is slidably connected inside the inclined hole, the transverse plate and the plug plate are staggered, and the plug plate is inserted inside the slot.

[0014] Preferably, the plurality of annular teeth are meshed and connected with the gear after moving a certain distance, an annular rubber airbag is fixedly connected to the side wall of one end of the second hard tube, and a plurality of return springs are fixedly installed on the inner wall of the annular rubber airbag.

[0015] Preferably, the first hard tube is fixedly connected to one end of the soft tube, and the other end of the soft tube is fixedly connected to the second hard tube.

[0016] Preferably, the eccentric rod is eccentrically fixedly connected to the side wall of the circular plate.

[0017] Preferably, an external thread is provided on a side wall at one end of the air pipe, a thread groove is provided on an inner side wall of the first hard tube, and the external thread and the thread groove are threadedly connected.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. By setting structures such as a limit plate, an external thread and a thread groove, when connecting the trachea and the first rigid tube, the user holds the hand grip plate, inserts the trachea into the first rigid tube, and then rotates the trachea, and the first rigid tube will move along the axial direction of the trachea for installation and assembly;

[0020] 2. When the first hard tube moves to the right for a certain distance, the plug plate and the slot are disengaged by setting structures such as annular teeth, eccentric rods and pistons. When the user continues to rotate the air tube, the air tube will no longer continue to spirally rotate with the first hard tube, but the air tube drives the first hard tube to rotate synchronously. At this time, the installation of the first hard tube and the air tube is completed, and the spiral rotation distance of the first hard tube and the air tube is just right. The tube body will not be cracked due to excessive spiral rotation, nor will it be easily detached due to insufficient spiral rotation.

[0021] 3. The user places the annular rubber airbag in the mouth and bites it with the teeth. Since the annular rubber airbag is made of elastic material, the user can provide good buffer protection for the bite of the teeth by biting the annular rubber airbag, and will not bite the tube body. Turn on the external ventilator and start using the tracheal intubation;

[0022] 4. After the use of the endotracheal tube is completed, the round box is pushed to slide on the second hard tube toward the direction close to the annular rubber airbag, and then the control valve on the one-way discharge pipe is opened, and multiple atomizing nozzles will spray mist alcohol, which adheres to the approaching annular rubber airbag to disinfect and clean the saliva and other impurities on the annular rubber airbag. When the round box moves to the side of the annular rubber airbag, the user rotates the round box, and the cleaning cotton cloth bonded and fixed inside the round box will clean and wipe the impurities on the side wall of the annular airbag, which is convenient for the user to use next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the appearance structure of an endotracheal tube with an air inlet protection structure proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the transverse hole in the endotracheal tube and the internal structure of the box body with an air inlet protection structure proposed by the present invention;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A;

[0026] Figure 4 This is a schematic diagram of the internal structure of a circular box and annular rubber airbag in an endotracheal tube with an air inlet protection structure proposed by the present invention;

[0027] Figure 5This is a schematic diagram of the internal structure of a drive box in an endotracheal cannula with an air inlet protection structure proposed by the present invention;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of the structure of part B;

[0029] Figure 7 This is a schematic diagram of the connection relationship between the piston, the box body and the second spring in an endotracheal cannula with an air inlet protection structure proposed by the present invention.

[0030] In the figure: 1. first hard tube; 2. air tube; 3. external thread; 4. thread groove; 5. limit plate; 6. circular ring block; 7. horizontal hole; 8. horizontal plate; 9. oblique hole; 10. vertical groove; 11. first spring; 12. plug plate; 13. synchronous shaft; 14. slot; 15. rotating rod; 16. gear; 17. circular plate; 18. eccentric rod; 19. push rod; 20. drive box; 21. slide plate; 22. first one-way tube; 23. second one-way tube; 24. annular box; 25. support rod; 26. box body; 27. piston; 28. second spring; 29. ​​one-way discharge pipe; 30. hose; 31. circular box; 32. atomizing nozzle; 33. cleaning cotton cloth; 34. annular rubber airbag; 35. second hard tube; 36. reset spring; 37. heating resistor wire; 38. annular teeth; 39. hand grip plate. DETAILED DESCRIPTION

[0031] 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.

[0032] Reference Figure 1 - Figure 7A tracheal intubation tube with an air inlet protection structure comprises a first hard tube 1, a second hard tube 35, a hose 30 and a trachea 2. A hand grip plate 39 is rotatably mounted on the side wall of the trachea 2. The hand grip plate 39 can only rotate with the side wall of the trachea 2 without displacement. A limit plate 5 is fixedly connected to the side wall of the hand grip plate 39. A circular ring block 6 is rotatably connected to the side wall of the first hard tube 1. The circular ring block 6 can rotate relative to the first hard tube 1 without displacement. The circular ring block 6 and the limit plate 5 are slidably connected. The limit plate 5 limits the circular ring block 6. A transverse hole 7 is provided on the side wall of the circular ring block 6. A transverse plate 8 is slidably connected to the inner wall of the transverse hole 7. An inclined Hole 9, the inclined hole 9 is inclinedly arranged on the side wall of the horizontal plate 8, and the two ends of the inclined hole 9 have a height difference, the inner wall of the circular ring block 6 is provided with a vertical groove 10 connected to the horizontal hole 7, the horizontal hole 7 and the vertical groove 10 are a cross-shaped structure when viewed from the front, the inner wall of the vertical groove 10 is fixedly connected with a first spring 11, the other end of the first spring 11 is fixedly connected with a plug plate 12, the plug plate 12 is slidably connected inside the vertical groove 10, the side wall of the plug plate 12 is fixedly connected with a synchronization shaft 13, the side wall of the first hard tube 1 is provided with a slot 14, the side wall of the circular ring block 6 is fixedly connected with a support rod 25, the support rod 25 is fixedly connected with a box body 26, and the inner wall of the box body 26 is fixedly connected with a second spring 28 (such as Figure 7 As shown), the other end of the second spring 28 is fixedly connected to a piston 27, and the piston 27 is sealingly and slidably connected to the inside of the box body 26. The inner wall of the box body 26 is penetrated and fixedly connected to a second one-way tube 23, and the first hard tube 1 is provided with a driving mechanism for switching the state of the plug plate 12.

[0033] The driving mechanism includes a plurality of annular teeth 38 fixedly connected to the side wall of the first hard tube 1, a rotating rod 15 is rotatably connected to the side wall of the limiting plate 5, a gear 16 is fixedly connected to the side wall of the rotating rod 15, a circular plate 17 is fixedly connected to one end of the rotating rod 15, an eccentric rod 18 is fixedly connected to the side wall of the circular plate 17, a push rod 19 is rotatably connected to the side wall of the eccentric rod 18, a driving box 20 is fixedly connected to the side wall of the limiting plate 5, a slide plate 21 is sealed and slidably connected inside the driving box 20, and one end of the push rod 19 away from the eccentric rod 18 is rotatably connected to the side wall of the slide plate 21. When the plurality of annular teeth 38 are meshed with the gear 16, since the annular teeth 38 move with the first hard tube 1, the plurality of annular teeth 38 will drive the gear 16 meshed with it to rotate continuously for a certain number of circles.

[0034] An annular box 24 is fixedly connected to the side wall of the first hard tube 1, and a first one-way tube 22 is fixedly connected to the inner wall of the drive box 20 through the inner wall thereof. An end of the first one-way tube 22 away from the drive box 20 is fixedly connected to the inner wall of the annular box 24, and an end of the second one-way tube 23 away from the box body 26 is fixedly connected to the inner wall of the drive box 20. The interior of the annular box 24 is filled with liquid alcohol. The first one-way tube 22 only allows the liquid alcohol inside the annular box 24 to be drawn into the interior of the drive box 20, and the second one-way tube 23 only allows the liquid alcohol inside the drive box 20 to be squeezed into the interior of the box body 26.

[0035] A one-way discharge pipe 29 is fixedly connected to the inner wall of the box body 26, and a control valve is installed on the inner wall of the one-way discharge pipe 29. A circular box 31 is slidably connected to the side wall of the second hard tube 35, and a plurality of atomizing nozzles 32 are embedded and installed on the inner wall of the circular box 31. The other end of the one-way discharge pipe 29 is fixedly connected to the plurality of atomizing nozzles 32. The one-way discharge pipe 29 only allows the liquid alcohol inside the box body 26 to be sprayed out from the plurality of atomizing nozzles 32. One end of the one-way discharge pipe 29 is a single-pipe body, and the other end of the one-way discharge pipe 29 is a multi-pipe body.

[0036] The sliding of the circular box 31 on the second hard tube 35 is affected by damping and requires external force to move. A cleaning cotton cloth 33 is bonded and fixed to the inner wall of the circular box 31. The cleaning cotton cloth 33 can be fixed to the inner wall of the circular box 31 by Velcro. The cleaning cotton cloth 33 is a disposable item and can be quickly installed and removed. A heating resistor wire 37 is embedded in the inner wall of the circular box 31.

[0037] The synchronous shaft 13 is slidably connected inside the inclined hole 9, the cross plate 8 and the plug plate 12 are staggered, and the plug plate 12 is inserted into the slot 14. When the plug plate 12 is inserted into the slot 14, the annular block 6 and the first hard tube 1 are regarded as a whole that can move synchronously.

[0038] After moving a certain distance, multiple annular teeth 38 mesh with the gear 16. An annular rubber airbag 34 is fixedly connected to the side wall of one end of the second hard tube 35. Multiple return springs 36 are fixedly installed on the inner wall of the annular rubber airbag 34. After turning on the heating resistance wire 37, the annular rubber airbag 34 can be heated, dried and disinfected.

[0039] The first hard tube 1 is fixedly connected to one end of the soft tube 30 , and the other end of the soft tube 30 is fixedly connected to the second hard tube 35 . The first hard tube 1 , the soft tube 30 and the second hard tube 35 constitute the endotracheal tube.

[0040] An external thread 3 is provided on the side wall of one end of the air pipe 2, and a thread groove 4 is provided on the inner wall of the first rigid tube 1. The external thread 3 and the thread groove 4 are threadedly connected. The first rigid tube 1 and the air pipe 2 can be screwed in and installed through the thread groove 4 and the external thread 3. The eccentric rod 18 is eccentrically fixed to the side wall of the circular plate 17.

[0041] In the present invention, when connecting the trachea 2 and the first rigid tube 1, the user holds the hand grip plate 39, inserts the trachea 2 into the first rigid tube 1, and then rotates the trachea 2. Since the side wall of the trachea 2 is provided with an external thread 3 and the inner wall of the first rigid tube 1 is provided with a thread groove 4, when the trachea 2 drives the external thread 3 to rotate, and under the action of the limit plate 5, the first rigid tube 1 will move along the axial direction of the trachea 2. When the first rigid tube 1 moves to the right for a distance (such as Figure 1As shown in the figure, the plurality of annular teeth 38 provided on the first hard tube 1 will mesh with the gear 16 rotatably connected to the limit plate 5 and drive the gear 16 to rotate, and the gear 16 drives the rotating rod 15 fixedly connected thereto to rotate, and the rotating rod 15 drives the push rod 19 to move through the circular plate 17 and the eccentric rod 18, and then the push rod 19 drives the slide plate 21 to slide back and forth in a sealed manner inside the drive box 20, then the slide plate 21 will draw the liquid alcohol inside the annular box 24 into the drive box 20 through the first one-way tube 22, and then squeeze this part of the liquid alcohol into Inside the box body 26, after the liquid alcohol enters the box body 26, it will push the piston 27 to slide sealed inside the box body 26 and stretch the second spring 28 until the side wall of the piston 27 and one end of the cross plate 8 are in contact, and then the sliding piston 27 will push the cross plate 8 to slide rightward for a distance inside the cross hole 7 until the inclined hole 9 opened on the cross plate 8 drives the synchronous shaft 13 to move upward for a distance, then the synchronous shaft 13 will drive the plug plate 12 fixedly connected thereto to move upward, so that the plug plate 12 and the slot 14 are out of the plug-in state.

[0042] At this time, since the plug plate 12 and the slot 14 are disengaged, when the user continues to rotate the trachea 2, the trachea 2 will no longer continue to spirally rotate with the first rigid tube 1, but the trachea 2 drives the first rigid tube 1 to rotate synchronously. At this time, the installation of the first rigid tube 1 and the trachea 2 is completed, and the spiral rotation distance of the first rigid tube 1 and the trachea 2 is just right. The tube body will not be cracked due to excessive spiral rotation, nor will it be easily detached due to insufficient spiral rotation. Then the trachea 2 is fixedly connected to the external ventilator.

[0043] Then the user places the annular rubber airbag 34 in the mouth and bites it with the teeth. Since the annular rubber airbag 34 is made of elastic material, the user can provide good buffer protection for the bite of the teeth by biting the annular rubber airbag 34 without biting the tube body. The user turns on the external ventilator and starts to use the tracheal intubation.

[0044] After the use of the endotracheal tube is finished, the user takes the annular rubber balloon 34 out of the mouth. At this time, the saliva on the annular rubber balloon 34 needs to be cleaned. Then, the user pushes the circular box 31 to slide a distance on the second hard tube 35 in the direction close to the annular rubber balloon 34, and then opens the control valve on the one-way discharge pipe 29. At this time, under the pulling force of the second spring 28, the piston 27 will slide in the reverse sealing inside the box body 26, and then squeeze the liquid alcohol stored in the box body 26 through the one-way discharge pipe 29 to the multiple atomizing nozzles 32 to spray out to form mist alcohol. The mist alcohol adheres to the approaching annular rubber balloon 34, and disinfects and cleans the saliva and other impurities on the annular rubber balloon 34. When the circular box 31 moves to the side of the annular rubber balloon 34, the user rotates the circular box 31, and the cleaning cotton cloth 33 bonded and fixed inside the circular box 31 will clean and wipe the impurities on the side wall of the annular rubber balloon 34, which is convenient for the user to use next time.

[0045] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 tracheal cannula with an air inlet protection structure, comprising a first hard tube (1), a second hard tube (35), a soft tube (30) and a trachea (2), characterized in that: A hand grip plate (39) is rotatably mounted on the side wall of the air pipe (2), and a limit plate (5) is fixedly connected to the side wall of the hand grip plate (39). A circular ring block (6) is rotatably connected to the side wall of the first hard tube (1). The circular ring block (6) and the limit plate (5) are slidably connected. A transverse hole (7) is provided on the side wall of the circular ring block (6). A transverse plate (8) is slidably connected to the inner wall of the transverse hole (7). An inclined hole (9) is provided on the side wall of the transverse plate (8). A vertical groove (10) communicating with the transverse hole (7) is provided on the inner wall of the circular ring block (6). The vertical groove (10) is connected to the inner wall of the circular ring block (6). 0) The inner wall is elastically connected to a plug plate (12) through a first spring (11), the side wall of the plug plate (12) is fixedly connected to a synchronization shaft (13), the side wall of the first hard tube (1) is provided with a slot (14), the side wall of the annular block (6) is fixedly connected to a box body (26) through a support rod (25), the inner wall of the box body (26) is elastically connected to a piston (27) through a second spring (28), the piston (27) is sealingly slidably connected to the inside of the box body (26), and the inner wall of the box body (26) is penetrated and fixedly connected to a second one-way tube (23); The first rigid tube (1) is provided with a driving mechanism for switching the state of the plug plate (12).

2. The endotracheal tube with an air inlet protection structure according to claim 1, characterized in that: The driving mechanism comprises a plurality of annular teeth (38) fixedly connected to the side wall of the first hard tube (1); the side wall of the limit plate (5) is rotatably connected to a rotating rod (15); the side wall of the rotating rod (15) is fixedly connected to a gear (16); one end of the rotating rod (15) is fixedly connected to a circular plate (17); the side wall of the circular plate (17) is fixedly connected to an eccentric rod (18); the side wall of the eccentric rod (18) is rotatably connected to a push rod (19); the side wall of the limit plate (5) is fixedly connected to a driving box (20); the driving box (20) is internally sealed and slidably connected to a slide plate (21); and one end of the push rod (19) away from the eccentric rod (18) is rotatably connected to the side wall of the slide plate (21).

3. The endotracheal tube with an air inlet protection structure according to claim 2, characterized in that: The side wall of the first hard tube (1) is fixedly connected to an annular box (24); the inner wall of the drive box (20) is penetrated and fixedly connected to a first one-way tube (22); an end of the first one-way tube (22) away from the drive box (20) is fixedly connected to the inner wall of the annular box (24); and an end of the second one-way tube (23) away from the box body (26) is fixedly connected to the inner wall of the drive box (20).

4. The endotracheal tube with an air inlet protection structure according to claim 3, characterized in that: A one-way discharge pipe (29) is fixedly connected to the inner wall of the box body (26), and a control valve is installed on the inner wall of the one-way discharge pipe (29). A circular box (31) is slidably connected to the side wall of the second hard tube (35), and a plurality of atomizing nozzles (32) are embedded and installed on the inner wall of the circular box (31). The other end of the one-way discharge pipe (29) is fixedly connected to the plurality of atomizing nozzles (32).

5. The endotracheal tube with an air inlet protection structure according to claim 4, characterized in that: A cleaning cotton cloth (33) is bonded and fixed to the inner wall of the circular box (31), and a heating resistance wire (37) is embedded and installed on the inner wall of the circular box (31).

6. The endotracheal tube with an air inlet protection structure according to claim 1, characterized in that: The synchronization shaft (13) is slidably connected inside the inclined hole (9), the transverse plate (8) and the plug plate (12) are staggered, and the plug plate (12) is inserted into the slot (14).

7. The endotracheal tube with an air inlet protection structure according to claim 2, characterized in that: The plurality of annular teeth (38) mesh with the gear (16) after moving a certain distance, and an annular rubber airbag (34) is fixedly connected to the side wall of one end of the second hard tube (35), and a plurality of return springs (36) are fixedly installed on the inner wall of the annular rubber airbag (34).

8. The endotracheal tube with an air inlet protection structure according to claim 1, characterized in that: The first hard tube (1) is fixedly connected to one end of the hose (30), and the other end of the hose (30) is fixedly connected to the second hard tube (35).

9. The endotracheal tube with an air inlet protection structure according to claim 1, characterized in that: An external thread (3) is provided on the side wall of one end of the air pipe (2), a thread groove (4) is provided on the inner side wall of the first hard pipe (1), and the external thread (3) and the thread groove (4) are threadedly connected.

10. The endotracheal tube with an air inlet protection structure according to claim 2, characterized in that: The eccentric rod (18) is eccentrically fixedly connected to the side wall of the circular plate (17).

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