CN108310572B

CN108310572B - Multifunctional tracheal catheter

Info

Publication number: CN108310572B
Application number: CN201810169152.2A
Authority: CN
Inventors: 王广; 张兵钱; 罗超; 彭形; 蒋光明
Original assignee: Chongqing Traditional Chinese Medicine Hospital
Current assignee: Chongqing Traditional Chinese Medicine Hospital
Priority date: 2018-02-28
Filing date: 2018-02-28
Publication date: 2020-07-14
Anticipated expiration: 2038-02-28
Also published as: CN108310572A

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a multifunctional tracheal catheter which comprises a catheter body, wherein the end part of the catheter body is hermetically connected with a sealing cover, and the end part of the sealing cover is provided with a first connector for communicating the catheter body with a breathing machine; the catheter body is also communicated with a sputum suction tube and a humidifying tube; a floating ball is arranged in the sputum suction pipe, an elastic reset piece is connected between the floating ball and the sputum suction pipe, and a first upward moving rack is fixedly connected to the floating ball; the humidifying pipe is provided with a second interface used for accessing atomized humidifying liquid, a first communication port is arranged between the humidifying pipe and the catheter body, a piston used for closing the first communication port is connected in the humidifying pipe in a sliding mode, and a downward moving rack is fixedly connected to the piston; a rotating gear which is rotationally connected with the outer wall of the catheter body is meshed between the upper moving rack and the lower moving rack. The scheme can avoid repeatedly opening the joint of the tracheal catheter and the breathing machine and maintaining the continuous humidity in the catheter, and avoids dust from entering the body of a patient and cross infection.

Description

Multifunctional tracheal catheter

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a multifunctional tracheal catheter.

Background

When a critical patient is rescued, a tracheal catheter is often inserted into the patient to keep the respiratory tract unobstructed and assist respiratory therapy due to medical needs, the common tracheal catheter is bent, and one end of the tracheal catheter is connected with a breathing machine during use, so that oxygen is injected into the patient. When using existing endotracheal tubes, the following problems often arise: (1) the joint of the tracheal catheter and the respirator needs to be opened repeatedly, and humidification liquid is injected, so that the air flue tightness is damaged, particularly, under the condition that a patient needs to live with the tracheal catheter for a long time, the air flue tightness cannot be mentioned, and oxygen introduced by the respirator is humidified discontinuously by the humidification liquid but is still dry. (2) The tracheal catheter and the breathing machine are required to be opened intermittently to be linked to suck out sputum in the respiratory tract, and then the sputum is subjected to sample preparation to detect bacteria in the sputum of a patient (a common detection item is gram negative positive judgment), and the method is time-consuming and labor-consuming. Meanwhile, the operation of discontinuously opening the connecting part of the tracheal catheter and the breathing machine can increase the probability of pulmonary infection and nosocomial cross infection in the clinical treatment process, often cause the increase of medical expenses of patients and even death of patients due to the fact that the patients cannot effectively correct the pulmonary infection and the nosocomial cross infection, become a difficult problem which cannot be effectively solved for a long time in medical and nursing work, bring huge economic burden and social burden to the society and families, and become a difficult problem which influences the cure rate of severe patients and improves the prognosis of patients and the life quality of the patients.

Disclosure of Invention

The invention aims to provide a multifunctional tracheal catheter, which can maintain the respiratory tract humidity and reduce the probability of pulmonary infection and nosocomial cross infection without repeatedly opening the joint of the tracheal catheter and a breathing machine and keeping the airtightness of the tracheal catheter.

In order to achieve the purpose, the invention provides the following technical scheme: the multifunctional tracheal catheter comprises a catheter body, wherein the end part of the catheter body is hermetically connected with a sealing cover, and the end part of the sealing cover is provided with a first connector for communicating the catheter body with a breathing machine; the catheter body is also communicated with a sputum suction tube and a humidifying tube; a floating ball is arranged in the sputum suction pipe, an elastic reset piece is connected between the floating ball and the sputum suction pipe, and a first upward moving rack is fixedly connected to the floating ball; the humidifying pipe is provided with a second interface used for accessing atomized humidifying liquid, a first communication port is arranged between the humidifying pipe and the catheter body, a piston used for closing the first communication port is connected in the humidifying pipe in a sliding mode, and a downward moving rack is fixedly connected to the piston; a rotating gear which is rotationally connected with the outer wall of the catheter body is meshed between the upper moving rack and the lower moving rack.

The beneficial effects of the above technical scheme are that:

1. through the sealing cover, the humidifying pipe and the sputum suction pipe, the continuous humidity in the catheter can be kept, the respiratory tract humidity can be maintained, the operation of repeatedly opening the joint of the tracheal catheter and a respirator in the prior art is avoided, the airtightness of the tracheal catheter is kept, and the probability of cross infection is effectively reduced; meanwhile, the sputum in the respiratory tract of a patient can be effectively reduced and the probability of lung infection is reduced through the double functions of introducing the humidifying liquid and the sputum suction tube.

2. Through the floater, move up rack one, rolling gear and move down the rack, can realize injecting into the size of atomizing humidifying liquid in to the trachea according to the size control of sputum viscosity how much, and when sputum viscosity is great, it is more to inject into the humidifying liquid, and when viscosity is less, it is less to inject into the humidifying liquid, avoids judging the subjective influence of humidifying liquid injection volume through artificial discernment sputum colour depth among the prior art.

The first preferred scheme is that as the preferred scheme of the basic scheme, a detection tube communicated with the sputum suction tube is fixedly connected to the catheter body, a third interface used for accessing a potassium hydroxide solution is arranged on the detection tube, and an inoculating ring is rotationally connected to the detection tube. Through injecting into potassium hydroxide solution in to the detecting tube, combine transfering loop again, can distinguish gram bacteria's negative and positive in the sputum, avoid the operation that extra sampling leads to among the prior art to waste time and energy the problem.

And in the second preferred scheme, as the first preferred scheme, the floating ball is fixedly connected with a second upward moving rack, the second upward moving rack is meshed with a straight gear, the straight gear is coaxially connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is connected with the inoculating ring, and the straight gear, the first bevel gear and the second bevel gear are rotationally connected with the catheter body. Through the second upward moving rack, the straight gear, the first bevel gear and the second bevel gear, the potassium hydroxide solution and the sputum can be automatically mixed according to the moving process of the floating ball, and the operation is more convenient.

And a third preferred scheme, as a second preferred scheme, the second bevel gear is fixedly connected with a square shaft, a square groove is arranged in the connecting ring, and the square shaft is in sliding connection with the square groove. The square shaft can be used for driving the connecting ring to rotate, the connecting ring can slide, and the operation is more convenient.

And the preferable scheme is a fourth scheme, as a preferable scheme of the third scheme or the basic scheme, a chute is arranged on the pipe wall of the sputum suction pipe, a telescopic plate used for sealing the chute is connected in the chute in a sliding manner, one end of the telescopic plate is fixedly connected with the upper moving rack, and the other end of the telescopic plate is fixedly connected with the sputum suction pipe. The sliding groove is sealed through the telescopic plate, so that the sputum is prevented from overflowing from the sputum suction pipe after entering the sputum suction pipe.

Preferably, in a fifth aspect, as a preferred aspect of the fourth aspect, an air primary filter layer and an ultrafiltration membrane are sequentially disposed at an end portion of the sealing cover close to the first interface. Impurities in the air are primarily filtered through the air primary filtering layer, the ultrafiltration membrane selectively separates macromolecules, bacteria and the like in the air from oxygen by utilizing the pore size of the ultrafiltration membrane, a purified breathing air source is obtained, and infection of a patient is prevented.

Drawings

FIG. 1 is a schematic view of the multifunctional endotracheal tube of the present invention;

FIG. 2 is a schematic view of the structure at A in FIG. 1;

FIG. 3 is a top view of the expansion plate of FIG. 2;

figure 4 is a cross-sectional view of the closure of figure 1.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a disk 1, a guide pipe 10, a sealing cover 2, a first interface 20, an air primary filtering layer 21, an ultrafiltration membrane 22, a sputum suction pipe 3, a floating ball 30, a tension spring 31, a support ring 4, a first upward moving rack 40, a chute 5, a hollow plate 50, a solid plate 51, a humidification pipe 6, a second interface 60, a first communication port 61, a piston 62, a downward moving rack 63, a rotating gear 64, a detection pipe 7, a third interface 70, a connecting ring 71, a second upward moving rack 8, a straight gear 80, a first bevel gear 81, a second bevel gear 82, a rotating ring 83, a rotating shaft 84, a square shaft 9, a square groove 90 and a communication pipe 100.

As shown in fig. 1, the multifunctional tracheal catheter comprises a catheter body, wherein the catheter body comprises a disc 1 and a catheter 10, the upper end of the catheter 10 is fixed on the disc 1, the upper end of the catheter 10 is hermetically connected with a sealing cover 2, and as shown in fig. 4, the upper end of the sealing cover 2 is a first connector 20 for communicating the catheter 10 with a breathing machine; the end part, close to the first connector 20, of the sealing cover 2 is sequentially provided with an air primary filtering layer 21 and an ultrafiltration membrane 22, namely the ultrafiltration membrane 22 is located below the air primary filtering layer 21, the air primary filtering layer 21 is preferably a sponge membrane or a cotton membrane and is used for primarily filtering impurities in air, and the ultrafiltration membrane 22 selectively separates macromolecules, bacteria and the like in the air from oxygen by utilizing the pore size of the ultrafiltration membrane 22 to obtain a purified breathing gas source.

The catheter 10 is also communicated with a sputum suction tube 3 and a humidifying tube 6.

As shown in fig. 2, the cross-sectional area of the lower end of the sputum aspirator 3 is larger than that of the upper end; the lower end of the sputum suction pipe 3 is communicated with the catheter 10, a floating ball 30 is arranged in the sputum suction pipe 3, and a tension spring 31 is connected between the bottom of the floating ball 30 and the sputum suction pipe 3; as shown in fig. 3, the top of the floating ball 30 is fixedly connected with a support ring 4 through a support bar, and the left side of the support ring 4 is fixedly connected with a first upward moving rack 40; inhale and be equipped with spout 5 on the upper end pipe wall of phlegm pipe 3, sliding connection has the expansion plate that is used for sealed spout 5 in the spout 5, the expansion plate includes hollow core plate 50 and the solid slab 51 of sliding connection in hollow core plate 50, thereby the upper end of solid slab 51 through with 4 fixed connection of support ring with shift up a 40 fixed connection of rack, the lower extreme of expansion plate with inhale phlegm pipe 3 fixed connection, help letting floater 30 at the ascending in-process, it is sealed with spout 5 through the expansion plate, thereby prevent that the sputum from getting into to inhale and overflowing from inhaling phlegm pipe 3 after phlegm pipe 3.

A second interface 60 for accessing atomized humidification liquid is arranged on the humidification tube 6, a first communication port 61 is arranged between the humidification tube 6 and the catheter 10, a piston 62 for closing the first communication port 61 is connected in the humidification tube 6 in a sliding mode, and a downward moving rack 63 is fixedly connected to the piston 62; a rotating gear 64 which is rotatably connected with the outer wall of the catheter 10 is meshed between the first upper moving rack 40 and the lower moving rack 63.

The catheter 10 is also fixedly connected with a detection tube 7 which is communicated with the sputum suction tube 3 through a communicating tube 100, the detection tube 7 is provided with a third interface 70 for accessing potassium hydroxide solution, and the detection tube 7 is rotationally connected with an inoculating ring 71. The right side of the floating ball 30 is fixedly connected with a second upward moving rack 8, the second upward moving rack 8 is meshed with a straight gear 80, the straight gear 80 is coaxially connected with a first bevel gear 81, the first bevel gear 81 is meshed with a second bevel gear 82, the second bevel gear 82 is connected with the inoculating ring 71, the straight gear 80, the first bevel gear 81 and the second bevel gear 82 are rotatably connected with the guide pipe 10 in a manner that a rotating ring 83 is fixedly connected onto the guide pipe 10, a rotating shaft 84 is rotatably connected into the rotating ring 83, and then the rotating shaft 84 is fixedly connected with the bevel gear. The second bevel gear 82 is fixedly connected with a square shaft 9, a square groove 90 is formed in the connecting ring 71, the square shaft 9 is connected with the square groove 90 in a sliding mode, the square shaft 9 can drive the connecting ring 71 to rotate, and the connecting ring 71 can slide.

After the lower end of the catheter body is inserted into the trachea of a patient, air is accessed through the first interface 20, and the air is filtered through the air primary filtering layer 21 and the ultrafiltration membrane 22, so that the infection of germs of the patient is prevented. When sputum suction is needed, atomized humidification liquid is introduced into the humidification tube 6 through the second interface 60; the top of the expansion plate is communicated with a negative pressure source through the support ring 4, so that negative pressure is generated in the sputum suction pipe 3, sputum of a patient is sucked into the sputum suction pipe 3, and the floating ball 30 is supported to move upwards. The first upward moving rack 40 moves upwards along with the first upward moving rack, the rotating gear 64 rotates, the downward moving rack 63 moves downwards, and the piston 62 moves downwards until the first communication port 61 is closed; in the case of applying negative pressure of the same magnitude, the more viscous the sputum, the slower the floating ball 30 ascends (the slower the flow rate of the sputum, the smaller the fluidity because the viscosity of the fluid, i.e., the sputum, is larger, the smaller the amount of sputum sucked in the same time, the slower the floating ball 30 ascends), the slower the lower rack 63 moves downward, thus, the slower the first communication port 61 is closed, the more humidification fluid is injected into the trachea, conversely, the thinner the sputum is, the faster the floating ball 30 rises, the faster the first communication port 61 is closed, the less humidification fluid is injected into the trachea, and according to the viscous condition of the sputum of the patient, automatically controlling the amount of the injected humidification fluid, avoiding the subjective influence of judging the injection amount of the humidification fluid by artificially identifying the color depth of the sputum in the prior art, meanwhile, the sealing effect of the sealing cover 2 is combined, the humidifying environment in the trachea can be always guaranteed, and the problems that the humidifying effect is poor and cross infection is caused by repeatedly opening the joint of the breathing machine and the trachea in the prior art are solved.

Injecting a potassium hydroxide solution into the detection tube 7 through the third interface 70; when floater 30 rose, a small part of sputum got into detecting tube 7 through communicating pipe 100, moved up rack two 8 and also upwards moved, spur gear 80 rotated, and bevel gear 81, bevel gear two 82 rotated, and through square shaft 9, transfering loop 71 also followed and rotated to stir the sputum in detecting tube 7, after transfering loop 71 stall, people can upwards slide transfering loop 71, whether the observation can pull out the viscose silk. If the sticky thread can be pulled out, gram bacteria in the sputum are negative, otherwise the sticky thread is positive, and the sticky thread does not need to be additionally sampled for detection as in the prior art, so that the operation is more convenient.

The above are merely examples of the present invention, and common general knowledge of known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Multifunctional endotracheal tube, including the pipe body, its characterized in that: the end part of the catheter body is hermetically connected with a sealing cover, and the end part of the sealing cover is provided with a first connector for communicating the catheter body with a breathing machine; the catheter body is also communicated with a sputum suction tube and a humidifying tube; a floating ball is arranged in the sputum suction pipe, an elastic reset piece is connected between the floating ball and the sputum suction pipe, and a first upward moving rack is fixedly connected to the floating ball; the humidifying pipe is provided with a second interface used for accessing atomized humidifying liquid, a first communication port is arranged between the humidifying pipe and the catheter body, a piston used for closing the first communication port is connected in the humidifying pipe in a sliding mode, and a downward moving rack is fixedly connected to the piston; a rotating gear which is rotatably connected with the outer wall of the catheter body is meshed between the upper moving rack and the lower moving rack.

2. The multifunctional endotracheal tube according to claim 1, characterized in that: the catheter body is fixedly connected with a detection tube communicated with the sputum suction tube, the detection tube is provided with a third interface for accessing a potassium hydroxide solution, and the detection tube is rotatably connected with an inoculating ring.

3. The multifunctional endotracheal tube according to claim 2, characterized in that: it shifts up rack two still fixedly connected with on the floater, it has the straight-teeth gear to shift up rack two meshing, straight-teeth gear coaxial coupling has bevel gear one, bevel gear one meshing has bevel gear two, bevel gear two with the transfering loop is connected, and straight-teeth gear, bevel gear one and bevel gear two all with the pipe body rotates to be connected.

4. The multifunctional endotracheal tube according to claim 3, characterized in that: the second bevel gear is fixedly connected with a square shaft, a square groove is formed in the inoculating ring, and the square shaft is connected with the square groove in a sliding mode.

5. The multifunctional endotracheal tube according to claim 1 or 4, characterized in that: the sputum suction tube is characterized in that a sliding groove is formed in the tube wall of the sputum suction tube, a telescopic plate used for sealing the sliding groove is connected in the sliding groove in a sliding mode, one end of the telescopic plate is fixedly connected with the upward moving rack I, and the other end of the telescopic plate is fixedly connected with the sputum suction tube.

6. The multifunctional endotracheal tube according to claim 5, characterized in that: the end part, close to the first connector, of the sealing cover is sequentially provided with an air primary filtering layer and an ultrafiltration membrane, and the ultrafiltration membrane is located below the air primary filtering layer.