Sputum scab removing device of tracheostomy tube

Abstract

The invention belongs to the field of medical instruments, and relates to a sputum scab removing device of a tracheostomy tube. The sputum scab removing device at least comprises a sputum removing part, a sputum collecting part, a breathing tube and a guiding device. Wherein the sputum removal part is arranged on the periphery of the sputum collection part in a closed mode after being unfolded, and the sputum removal part can be folded; the sputum collecting part is used for collecting sputum scab and can prevent the sputum scab from falling to the lower respiratory tract to cause cough and choking; the breathing tube can provide a normal breathing channel when sputum scab is removed; the guiding device limits the sputum scab removing device to move along the center line of the sleeve all the time when the sputum scab removing device stretches into the invisible area of the sleeve, and the sputum scab removing device is prevented from touching the inner wall of the sleeve.

Description

Technical Field

[0001] The invention belongs to the field of medical devices and relates to a sputum crust removing device, in particular to a sputum crust removing device for a tracheotomy tube. Background Art

[0002] During the postoperative recovery of patients with tracheotomy and intubation, in order to prevent the tracheotomy and intubation device from being blocked by sputum crust and affecting the patient's breathing, nursing staff are required to regularly clean and care for the inner tube and sleeve of the tracheotomy and intubation device. Currently, the most common type is the pre-buried metal sleeve, which is a 75° arc tube. The bending radius of the center line of the sleeve is usually set to 10 times the sleeve diameter. During the rehabilitation period, the sleeve is fixed and pre-buried in the throat and cannot be removed from the body; sputum crust usually accumulates in the lower area of ​​the sleeve. Due to the limited operating space and poor vision, when the sleeve is cleaned and cared for, there is a possibility that the sputum crust will fall off and enter the lower respiratory tract, thereby causing coughing and choking.

[0003] The inventors have found in long-term practice that the sputum scab removal devices in the prior art have defects such as sputum scabs easily entering the lower respiratory tract and inducing choking and coughing, insufficient brush cleaning ability, and difficulty in using negative pressure suction devices for different groups of people (see below for detailed analysis). In addition, most sputum scab removers are used to clean the patient's respiratory tract, and there are few devices that clean the cannula of the endotracheal intubation device.

[0004] Prior art 1 (authorization announcement number: CN204411452U) shows a sputum scab remover for respiratory department. When using the sputum scab remover, the oxygen supply connector is connected to the ventilator, the suction connector is connected to the suction machine, and the catheter is inserted into the patient's trachea together with the annular sponge under the guidance of the guide head. The air outlet and the oxygen channel form a breathing channel to prevent the patient from suffocating; at the same time, the scab removal claw at the front end of the catheter can scrape off the sputum scab adhered to the respiratory tract and sweep the sputum scab into the sputum storage cavity. Under the suction of the suction channel, the sputum scab in the sputum storage cavity is sucked into the annular suction cavity through the sputum suction hole, and is sucked out of the patient's body by the suction machine through the suction channel. The thicker sputum on the respiratory tract is discharged from the body by the scab removal claw and the annular sponge.

[0005] During use of the technical solution in prior art 1: the catheter is inserted into the patient's trachea together with the annular sponge under the guidance of the guide head. However, the annular sponge cannot change its size. During the insertion process, the annular sponge will squeeze off the sputum crust adhered to the tracheal wall, and then the sputum crust will fall into the lower respiratory tract, causing the patient to cough and choke.

[0006] In view of the technical problems existing in the prior art 1, in order to prevent sputum scabs from entering the lower respiratory tract, the prior art 2 (authorization announcement number: CN204745271U) discloses a respiratory sputum scab removal device. Before use, the scab removal claw is matched with the scab removal claw groove, that is, the scab removal claw is in a closed state. When in use, the oxygen pipeline is connected to the ventilator, the suction channel is connected to the suction machine, and then the sputum scab removal body is inserted into the patient's trachea. When reaching the patient's site, the retraction switch of the micro-electric telescopic rod is turned on, and the retraction of the micro-electric telescopic rod drives the scab removal claw to open. The scab removal claw can scrape off the sputum scabs adhered to the respiratory tract, and the sputum scabs will be sucked out of the patient's body through the suction pipeline by the suction machine. When the sputum scab removal body is pulled out of the trachea, the extension switch of the micro-electric telescopic rod is turned on to close the scab removal claw, and finally the sputum scab removal body is pulled out of the trachea.

[0007] During use, the technical solution in prior art 2 is in a retracted state when the scab removal claws penetrate deep into the trachea, which can reduce the possibility of pushing sputum crusts into the lower respiratory tract during the insertion process. However, during the scab removal process, there are gaps between the scab removal claws, and some sputum crusts will fall from the gaps between the scab removal claws and enter the lower respiratory tract, causing the patient to cough and choke.

[0008] The above two existing technologies both use negative pressure devices or suction devices to remove sputum crusts. Since the size of sputum crusts varies, the required air pressure is different, and different patients have different tolerance to air pressure. If it is not appropriate, it will easily cause the patient to choke and increase the patient's discomfort. Therefore, high requirements are placed on the precise control of the air pressure. If the pressure is too small, the sputum crust cannot be sucked out, and if the pressure is too high, the patient cannot accept it, resulting in difficulty in operation and poor suction effect.

[0009] At the same time, in the prior art, most sputum crust removal devices adopt a straight-line entry method. When cleaning the arc-shaped cannula, the straight-line entry is not only difficult to reach the bottom of the cannula smoothly, but also touches the inner wall of the cannula when extending to the middle and lower part of the cannula, greatly increasing the possibility of the sputum crust being pushed out of the cannula and falling into the lower respiratory tract.

[0010] In summary, in front-line practice, there is an urgent need for a sputum crust removal device that can prevent sputum crust from entering the lower respiratory tract during the insertion process, has sufficient cleaning ability, and is easy to operate, so this case is proposed. Summary of the invention

[0011] The purpose of the present invention is to solve the problem that during the current sputum crust removal process of a tracheotomy tube, the existing device may cause sputum and sputum crust to fall into the lower respiratory tract, thereby causing coughing and choking. The present invention proposes a sputum crust removal device for a tracheotomy tube.

[0012] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions: A sputum crust removal device for a tracheotomy tube comprises at least a sputum removal part, a sputum collection part, and a breathing tube; wherein the sputum removal part is sealed and arranged on the sputum collection part, and the sputum removal part is foldable; after the sputum removal part is unfolded, the outer diameter of the sputum removal part is the same as the inner diameter of the sleeve of the tracheotomy tube device; the sputum collection part comprises at least a sputum collection cavity and a breathing hole, the sputum collection cavity is isolated from the breathing hole, and the breathing tube is conductively connected to the breathing hole; the breathing tube is an arc-shaped tube, and the curvature radius of the center line of the breathing tube is the same as the curvature radius of the center line of the sleeve.

[0013] Furthermore, the sputum removal part includes a scraper blade 1 and a scraper blade 2, and the scraper blade 1 and the scraper blade 2 are alternately arranged on the top positioning surface of the sputum collecting part, and the top positioning surface of the sputum collecting part includes an outer positioning surface and an inner positioning surface; wherein, the scraper blade 1 is arranged on the inner positioning surface of the sputum collecting part, and a sputum discharge hole is arranged on the scraper blade 1; the scraper blade 2 is arranged on the outer positioning surface of the sputum collecting part.

[0014] Furthermore, the sputum scab removal device also includes a control tube, which is an arc-shaped tube and is sleeved on the breathing tube; a transmission rod is arranged between the bottom end of the control tube and the sputum removal part, one end of the transmission rod is connected to the scraper interface arranged on the sputum removal part, and the other end of the transmission rod is connected to the tube interface arranged on the control tube; the tube interface and the scraper interface can both rotate around their central axes.

[0015] Furthermore, the transmission rod comprises a long rod and a short rod; the length of the long rod is greater than the length of the short rod; the long rod is connected to the second scraper blade, and the short rod is connected to the first scraper blade.

[0016] Furthermore, the sputum scab removal device also includes a limit stopper, which is arranged on the control tube and is used to control the insertion depth of the sputum scab removal device into the sleeve; when the bottom of the control tube extends out of the bottom of the sleeve, the limit stopper abuts against the top of the sleeve.

[0017] Furthermore, the sputum scab removal device also includes a guiding device, and the guiding device is arranged on the control tube along the bending radius direction of the control tube; the guiding device includes a primary guiding device and a secondary guiding device; the primary guiding device includes a guide frame and a guide wheel, and the guide wheels are arranged on both sides of the guide frame, and the surface arc radius of the guide wheels matches the inner diameter of the casing; the secondary guiding device has the same structure as the primary guiding device; taking the distance between the bottom of the control tube and the limit block as the reference L, the primary guiding device is arranged at a position of L / 3 to L / 2 from the bottom of the control tube, and the secondary guiding device is arranged at a position of L / 2 to 2L / 3 from the bottom of the control tube.

[0018] Furthermore, the sputum scab removal device also includes a hand-held part, which includes a grip rod and a push rod; the grip rod is arranged on the control tube, and the push rod is arranged on the breathing tube; a groove wheel is sleeved on the push rod, and an arc-shaped gap groove is arranged on the control tube, and the groove wheel cooperates with the arc-shaped gap groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. The sputum crust scraped off during use of the present invention is collected through the sputum collecting cavity, which can prevent the sputum crust from falling into the lower respiratory tract and causing coughing when the sputum crust is removed. At the same time, the step of suctioning sputum is also omitted, which improves the efficiency of sputum crust removal. In the present invention, sputum crust removal can be completed without setting up an air suction device, and there is no requirement for precise control of the size of the negative pressure, which reduces the difficulty of using the device; at the same time, during the operation, the operation of the nursing staff does not need to be restricted by the external air source, and the sputum crust cleaning action can be more flexible.

[0020] 2. The folding function of the expectorant part makes the contact surface between the sputum scab removal device and the sputum scab smaller when entering the sleeve, reducing the possibility of the sputum scab being pushed down into the patient's lower respiratory tract. After the expectorant part is unfolded, it is a fully enclosed structure, which reduces the possibility of the sputum scab falling off and entering the lower respiratory tract during the expectoration process. At the same time, in the prior art, many technical solutions use an airbag with a flexible structure as the expectorant part for expectoration. Since the airbag is a flexible structure, there is a problem of low cleaning force. The present invention uses a foldable structure to achieve diameter change. When removing sputum scab, there is rigid scraping between the expectorant part and the sleeve, and the cleaning force is higher.

[0021] 3. The setting of the limit stop can quickly determine whether the sputum scab removal device is extended to the specified position; through the cooperation of the primary guide device and the secondary guide device, the center line angle of the control tube can be limited to coincide with the center line of the sleeve, thereby smoothly controlling the sputum removal part to move forward along the center line of the sleeve to avoid touching the inner wall of the sleeve.

[0022] 4. The setting of the handheld part makes it very easy and simple to fold and unfold the sputum removal part, thereby reducing the workload of nursing staff and improving operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the sputum crust removal device; Figure 2 It is a cross-sectional schematic diagram of the expectorant part and the expectorant part; Figure 3 It is an enlarged schematic diagram of the annular section of the local structure of the front end of the sputum crust removal device; Figure 4 It is an enlarged schematic diagram of the local structure of the expectorant part in the folded state; Figure 5It is an enlarged schematic diagram of the position relationship structure of the scraper blade 1 and the scraper blade 2 when the phlegm removal part is folded; Figure 6 It is an enlarged schematic diagram of the cross-section of the local structure of the handheld part; Figure 7 It is a schematic diagram of the structure of the operation steps when the sputum crust removal device is inserted into the sleeve.

[0024] The meanings of the symbols in the figure are as follows: 1. Expectorant part; 11. Scraper 1; 111. Expectorant hole; 12. Scraper 2; 13. Long rod; 14. Short rod; 15. Tube interface; 16. Scraper interface; 2. Expectorant collecting part; 21. Expectorant collecting cavity; 22. Breathing hole; 23. External positioning surface; 24. Internal positioning surface; 3. Breathing tube; 4. Hand-held part; 41. Grip; 42. Push rod; 43. Groove wheel; 5. Primary guide device; 51. Guide frame; 52. Guide wheel; 6. Limit stopper; 7. Control tube; 71. Arc gap groove; 8. Secondary guide device; 10. Casing. DETAILED DESCRIPTION

[0025] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0026] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. 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.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] As attached Figure 1 -Attached Figure 3 , Attachment Figure 7 As shown, this embodiment is a sputum crust removal device for a tracheotomy tube, which at least comprises a sputum removal part 1, a sputum collection part 2, and a breathing tube 3. The sputum removal part 1 is arranged on the sputum collection part 2, and the sputum removal part 1 is foldable. After the sputum removal part 1 is unfolded, the outer diameter of the sputum removal part 1 is the same as the inner diameter of the sleeve 10 of the tracheotomy tube device; the sputum collection part 2 at least comprises a sputum collection cavity 21 and a breathing hole 22, and the sputum collection cavity 21 is isolated from the breathing hole 22; the breathing tube 3 is conductively connected to the breathing hole 22; the breathing tube 3 is an arc tube, and the curvature radius of the center line of the breathing tube 3 is the same as the curvature radius of the center line of the sleeve 10.

[0031] When in use, the expectorant part 1 is folded up, and the sputum scab removal device is inserted into the sleeve 10 of the tracheotomy tube until the expectorant part 1 extends out of the bottom of the sleeve 10; then, the expectorant part 1 is opened, and the sputum scab removal device is pulled outward, and the expectorant part 1 scrapes off the sputum scab on the inner wall of the sleeve, and the scraped sputum scab is collected by the sputum collecting cavity 21 of the sputum collecting part 2 to prevent it from falling into the lower respiratory tract and causing coughing. At the same time, the setting of the sputum collecting cavity 21 eliminates the step of suctioning sputum and improves the efficiency of sputum scab removal. The conducting connection between the breathing hole 22 and the breathing tube 3 provides an independent breathing channel for the patient during the removal of sputum scabs, reducing the patient's discomfort.

[0032] Since the sputum scab cleaning device needs to be inserted into the intubation sleeve arranged on the trachea, its size is usually small. In order to set up the suction device in the prior art, the internal design of the sputum scab cleaning device is often complicated, which makes the cost high. In addition, since the volume of sputum scabs is different, the required pressure is different, and different patients have different tolerance to negative pressure. A slight inappropriateness can easily cause the patient's choking and coughing, affecting the patient's compliance. Therefore, high requirements are put forward for the precise control of the size of the negative pressure. If the pressure is too small, the sputum scab cannot be sucked out, and if the pressure is too large, the patient cannot accept it, resulting in difficulty in operation and poor sputum suction effect. In the present invention, the sputum scab can be removed without setting up a suction device, which reduces the cost. After the sputum removal part 1 is unfolded, the outer diameter of the sputum removal part 1 is the same as the inner diameter of the sleeve 10 of the tracheal intubation device, which can prevent the sputum scab from falling into the lower respiratory tract during the sputum scab removal process; at the same time, during the operation, the operation of the nursing staff does not need to be restricted by the external air source, and the sputum scab cleaning action can be more flexible.

[0033] In order to prevent the expectorant 1 from touching the tube wall when extending into the sleeve, a variable diameter structure is required. In the prior art, air bags are mostly used to achieve variable diameter. The air bag is a flexible structure, and the mixture of sputum and sputum scab is relatively slippery. In this case, when the sputum scab is removed by the air bag, there will be a problem of low cleaning force. The present invention uses a foldable structure to achieve variable diameter. When removing sputum scab, there is a rigid scraping between the expectorant 1 and the sleeve 10, and the cleaning force is higher.

[0034] Preferably, as attached Figure 2 -Attached Figure 4 As shown, the phlegm removing part 1 includes a scraper blade 11 and a scraper blade 12, and both the scraper blade 11 and the scraper blade 12 are fan-shaped structures. The fan-shaped structure refers to: a shape formed by changing the lower base of an isosceles trapezoid into an arc; the scraper blade 11 and the scraper blade 12 are alternately arranged on the top positioning surface of the phlegm collecting part 2, and the top positioning surface of the phlegm collecting part 2 includes an outer positioning surface 23 and an inner positioning surface 24; wherein, the scraper blade 11 is arranged on the inner positioning surface 24 of the phlegm collecting part 2, and a phlegm discharge hole 111 is arranged on the scraper blade 11; the scraper blade 2 12 is arranged on the outer positioning surface 23 of the phlegm collecting part 2.

[0035] In the present invention, the expectorant part 1 is a closed structure after being unfolded, and the outer diameter of the expectorant part is the same as the inner diameter of the sleeve of the endotracheal intubation device, which can effectively prevent the possibility of sputum crust falling off and entering the lower respiratory tract during the expectoration process. The meaning of the closed structure is that, unlike the gap between the scab removal claws in the prior art, there is no gap between the scraper blade 11 and the scraper blade 2 12 after the expectorant part 1 is unfolded in the present invention.

[0036] Preferably, as attached Figure 1 , Attachment Figure 3 -Attached Figure 5As shown, the sputum crust removal device also includes a control tube 7, which is an arc-shaped tube and is sleeved on the breathing tube 3. In order to reduce the resistance of the breathing tube 3 when sliding in the control tube 7, the front end of the control tube 7 is transitionally matched with the breathing tube 3, and the other parts of the control tube 7 are clearance-matched with the breathing tube 3; the control tube is provided with a transmission rod between the bottom end of the control tube 7 and the sputum removal part 1. One end of the transmission rod is connected to the scraper interface 16 arranged on the sputum removal part 1, and the other end of the transmission rod is connected to the pipe interface 15 arranged on the control tube 7; the pipe interface 15 and the scraper interface 16 can both rotate around their central axis. The transmission rod includes a long rod 13 and a short rod 14, and the length of the long rod 13 is greater than the length of the short rod 14; the long rod 13 is connected to the scraper blade 2 12 arranged on the outside, and the short rod 14 is connected to the scraper blade 1 11 arranged on the inside.

[0037] When in use, the control tube 7 controls the movement of the expectorant part 1 through the transmission rod, so that the expectorant part 1 can be unfolded into a circle matching the inner diameter of the sleeve 10, or the expectorant part 1 can be folded and gathered into a folded structure. The scraper blade 11 arranged on the inner side can be folded faster when the expectorant part 1 is folded because the transmission rod connected to it is shorter, thereby avoiding the interference between the scraper blade 11 and the scraper blade 2 12 when they are folded. The folding function of the expectorant part 1 makes the contact surface between the sputum scab removal device and the sputum scab in the sleeve 10 smaller, reducing the possibility that the sputum scab will be pushed down to the lower respiratory tract of the patient during the downward movement of the sputum scab removal device.

[0038] Preferably, the sputum scab removal device further comprises a limit stopper 6, which is arranged on the control tube 7 and is used to control the insertion depth of the sputum scab removal device into the sleeve 10. When the bottom of the control tube 7 extends out of the bottom of the sleeve 10, the limit stopper 6 just abuts against the top of the sleeve 10 to form a block, thereby preventing the sputum scab removal device from going too deep into the respiratory tract and causing discomfort to the patient.

[0039] Since the sleeve is an arc-shaped tube, when the sputum scab removal device is inserted into the sleeve, only the insertion depth of the sputum scab removal device at the front end of the sleeve can be seen by naked eye, and the insertion depth of the rear end of the sleeve cannot be judged by naked eye. The setting of the limit stop can quickly judge whether the sputum scab removal device is extended to the specified position.

[0040] Preferably, in order to prevent the phlegm removal part 1 from touching the inner wall of the sleeve 10 during the process of extending into the sleeve 10, the phlegm scab removal device further includes a guide device, which is arranged on the control tube 7 along the bending radius direction of the control tube 7; the guide device includes a primary guide device 5 and a secondary guide device 8. The primary guide device 5 includes a guide frame 51 and a guide wheel 52, and the guide wheel 52 is arranged on both sides of the guide frame 51, and the guide wheel 52 contacts the inner wall of the sleeve 10. The secondary guide device 8 has the same structure as the primary guide device 5, and the distance between the bottom of the control tube 7 and the limit stopper 6 is L. The primary guide device 5 is arranged at a position of L / 3 to L / 2 from the bottom of the control tube 7, and the secondary guide device 8 is arranged at a position of L / 2 to 2L / 3 from the bottom of the control tube 7.

[0041] Since the sputum crust is mainly concentrated at a position 1 / 3 of the distance from the outlet below the sleeve 10, and the sleeve 10 is an arc-shaped structure, when the sputum removal part 1 is extended into the front end of the sleeve 10, it is a visual operation inside the sleeve 10. The sputum removal part 1 can be smoothly extended by observation through this distance. Due to the setting of the primary guide device 5, the sputum removal part 1 can smoothly enter the invisible area of ​​the sleeve; before the sputum removal part 1 enters the area where the sputum crust may exist, the primary guide device 5 and the secondary guide device 8 cooperate to limit the centerline angle of the control tube 7 to make it coincide with the centerline of the sleeve 10, thereby smoothly controlling the sputum removal part 1 to move along the centerline of the sleeve 10 to avoid touching the inner wall of the sleeve.

[0042] Preferably, as attached Figure 1 , Attachment Figure 6 -Attached Figure 7 As shown, the sputum scab removal device also includes a handheld part 4, which includes a grip 41 and a push rod 42, wherein the grip 41 is arranged on the control tube 7, and the push rod 42 is arranged on the breathing tube; a groove wheel 43 is sleeved on the push rod 42, and an arc-shaped gap groove 71 is arranged on the control tube 7, and the groove wheel 43 cooperates with the arc-shaped gap groove 71, that is, the groove of the groove wheel 43 contacts the upper surface and the lower surface of the arc-shaped gap groove 71.

[0043] When in use, the push rod 42 is pushed forward to make the push rod 42 away from the grip rod 41, and the control tube 7 slides upward relative to the breathing tube 3, so that the control tube 7 pulls up and retracts the sputum removal part 1 through the transmission rod; at this time, the sputum scab removal device is extended into the sleeve 10, and before the sputum removal part 1 enters the invisible area, the primary guide device 5 enters the sleeve to limit and guide the sputum removal part 1; before the sputum removal part 1 enters the sleeve at a position 1 / 3 of the distance from the outlet, the secondary guide device 8 enters the sleeve; through the cooperation of the primary guide device 5 and the secondary guide device 8, the center line angle of the control tube 7 can be limited to coincide with the center line of the sleeve 10, thereby controlling the sputum removal part 1 to move along the center line of the sleeve 10 to avoid touching the inner wall of the sleeve. When the limit stopper 6 abuts against the top of the sleeve 10, the sputum removal part 1 has completely extended out of the sleeve 10; at this time, the push rod 42 and the grip rod 41 move toward each other, and the control tube 7 slides downward compared to the breathing tube 3 to unfold the sputum removal part 1, and then the sputum scab removal device is pulled outward to complete the cleaning of the sputum scab. The setting of the handheld part 4 makes it very easy and simple to fold and unfold the sputum removal part 1, which reduces the workload of the nursing staff and improves the operation efficiency.

[0044] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A sputum crust removal device for a tracheotomy tube, characterized in that: The device at least comprises a sputum removal part, a sputum collection part and a breathing tube; wherein the sputum removal part is sealed and arranged on the sputum collection part, and the sputum removal part is foldable; after the sputum removal part is unfolded, the outer diameter of the sputum removal part is the same as the inner diameter of the sleeve of the tracheotomy intubation device; the sputum collection part at least comprises a sputum collection cavity and a breathing hole, the sputum collection cavity is separated from the breathing hole, and the breathing tube is conductively connected to the breathing hole; the breathing tube is an arc-shaped tube, and the curvature radius of the center line of the breathing tube is the same as the curvature radius of the center line of the sleeve.

2. The sputum crust removal device for tracheotomy tube according to claim 1, characterized in that: The phlegm removing part comprises a first scraper and a second scraper, wherein the first scraper and the second scraper are alternately arranged on the top positioning surface of the phlegm collecting part, and the top positioning surface of the phlegm collecting part comprises an outer positioning surface and an inner positioning surface; wherein the first scraper is arranged on the inner positioning surface of the phlegm collecting part, and a phlegm discharge hole is arranged on the first scraper; and the second scraper is arranged on the outer positioning surface of the phlegm collecting part.

3. The sputum crust removal device for tracheotomy tube according to claim 2, characterized in that: The sputum scab removal device also includes a control tube, which is an arc-shaped tube and is sleeved on the breathing tube; a transmission rod is arranged between the bottom end of the control tube and the sputum removal part, one end of the transmission rod is connected to the scraper interface arranged on the sputum removal part, and the other end of the transmission rod is connected to the tube interface arranged on the control tube; the tube interface and the scraper interface can both rotate around their central axes.

4. The sputum crust removal device for tracheotomy tube according to claim 3, characterized in that: The transmission rod comprises a long rod and a short rod; the length of the long rod is greater than that of the short rod; the long rod is connected to the second scraper blade, and the short rod is connected to the first scraper blade.

5. The sputum crust removal device for tracheotomy tube according to claim 4, characterized in that: The sputum scab removal device also includes a limit block, which is arranged on the control tube and is used to control the insertion depth of the sputum scab removal device into the sleeve; when the bottom of the control tube extends out of the bottom of the sleeve, the limit block abuts against the top of the sleeve.

6. The sputum crust removal device for tracheotomy tube according to claim 5, characterized in that: The sputum scab removal device also includes a guiding device, which is arranged on the control tube along the bending radius direction of the control tube; the guiding device includes a primary guiding device and a secondary guiding device; the primary guiding device includes a guide frame and a guide wheel, and the guide wheels are arranged on both sides of the guide frame, and the surface arc radius of the guide wheels matches the inner diameter of the sleeve; the secondary guiding device has the same structure as the primary guiding device; taking the distance between the bottom of the control tube and the limit block as a reference L, the primary guiding device is arranged at a distance of L / 3 to L / 2 from the bottom of the control tube, and the secondary guiding device is arranged at a distance of L / 2 to 2L / 3 from the bottom of the control tube.

7. The sputum crust removal device for tracheotomy tube according to claim 6, characterized in that: The sputum scab removal device also includes a handheld portion, which includes a grip and a push rod; the grip is arranged on the control tube, and the push rod is arranged on the breathing tube; a groove wheel is sleeved on the push rod, and an arc-shaped gap groove is arranged on the control tube, and the groove wheel cooperates with the arc-shaped gap groove.

Images