CN108310572A - Multifunctional trachea catheter - Google Patents

Abstract

The invention belongs to the technical field of medical devices, and in particular relates to a multifunctional trachea catheter, which includes a catheter body. The end of the catheter body is sealed and connected with a sealing cover, and the end of the sealing cover is provided with an interface for connecting the catheter body and a ventilator; The catheter body is also connected with a sputum suction tube and a humidification tube; a floating ball is arranged in the sputum suction tube, and an elastic reset member is connected between the floating ball and the sputum suction tube, and the floating ball is fixedly connected with an upward moving rack one; There is an interface 2 on the humidification tube for accessing the atomized humidification liquid. There is a communication port 1 between the humidification tube and the catheter body. A piston for closing the communication port 1 is slidably connected to the humidification tube. The piston is fixedly connected to a The lower rack; the upper rack and the lower rack are meshed with a rotating gear that is rotationally connected to the outer wall of the catheter body. This solution can eliminate the need to repeatedly open the connection between the endotracheal tube and the ventilator and maintain continuous humidity in the tube to prevent dust from entering the patient's body and cross-infection.

Description

multifunctional endotracheal tube

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a multifunctional trachea tube.

Background technique

When rescuing critically ill patients, due to medical needs, an endotracheal tube is often inserted for the patient to keep the airway unobstructed and assist breathing therapy. The common endotracheal tube is curved. When in use, one end of the endotracheal tube is connected to a ventilator to inject oxygen into the patient. When using the existing endotracheal tube, the following problems often occur: (1) It is necessary to repeatedly open the connection between the endotracheal tube and the ventilator, and inject humidification fluid, which not only destroys the airway seal, especially when the patient needs to live with the endotracheal tube for a long time In this state, the airway tightness is impossible to talk about, and although the oxygen introduced by the ventilator is humidified intermittently by the humidifying fluid, it is still dry. (2) It is necessary to intermittently open the connection between the endotracheal tube and the ventilator to suck out the sputum in the respiratory tract, and then prepare the sputum sample to detect the bacteria in the patient's sputum (the common test item is Gram-negative and positive Judgment), time-consuming and labor-intensive. At the same time, the intermittent operation of opening the link between the tracheal tube and the ventilator will lead to an increase in the probability of lung infection and nosocomial cross-infection during clinical treatment, often resulting in patients’ medical expenses due to the inability to effectively correct lung infection and nosocomial cross-infection Increase or even lead to the death of patients has become a long-term problem that cannot be effectively solved in medical and nursing work, and it has brought huge economic and social burdens to society and families, and has become a problem that affects the cure rate of critically ill patients and improves the prognosis of patients and improves the quality of life of patients.

Contents of the invention

The purpose of the present invention is to provide a multi-functional endotracheal tube, which can keep the airtightness of the endotracheal tube without repeatedly opening the connection between the endotracheal tube and the ventilator, maintain the humidity of the respiratory tract, and reduce the probability of lung infection and nosocomial cross-infection.

In order to achieve the above object, the present invention provides the following technical solutions: a multifunctional tracheal catheter, including a catheter body, the end of the catheter body is sealed with a sealing cover, and the end of the sealing cover is provided with an interface for communicating with the catheter body and the ventilator; The catheter body is also connected with a sputum suction tube and a humidification tube; a floating ball is arranged in the sputum suction tube, and an elastic reset member is connected between the floating ball and the sputum suction tube, and the floating ball is fixedly connected with an upward moving rack one; There is an interface 2 on the humidification tube for accessing the atomized humidification liquid. There is a communication port 1 between the humidification tube and the catheter body. A piston for closing the communication port 1 is slidably connected to the humidification tube. The piston is fixedly connected to a The downward moving rack; the rotating gear which is rotatably connected with the outer wall of the catheter body is meshed between the upward moving rack and the downward moving rack.

The beneficial effects of the above-mentioned technical scheme are:

1. Through the sealing cover, humidification tube and sputum suction tube, it can not only maintain the continuous humidity in the catheter, maintain the humidity of the respiratory tract, avoid the operation of repeatedly opening the connection between the tracheal tube and the ventilator in the prior art, and keep the airtightness of the tracheal tube It can effectively reduce the chance of cross-infection; at the same time, by introducing the dual functions of humidifying fluid and suction tube, it can effectively reduce the sputum in the patient's respiratory tract and reduce the chance of lung infection.

2. By floating the ball, moving up the rack 1, rotating the gear and moving down the rack, it is possible to control the amount of atomized humidification liquid injected into the trachea according to the viscosity of the sputum, and when the viscosity of the sputum is high, inject When there is more humidifying fluid and the viscosity is lower, less humidifying fluid is injected, which avoids the subjective influence of judging the amount of humidifying fluid injected by artificially identifying the color of sputum in the prior art.

Preferred option 1, as the preferred option of the basic solution, the catheter body is fixedly connected with a detection tube connected with the sputum suction tube, the detection tube is provided with an interface 3 for accessing potassium hydroxide solution, and the detection tube is rotatably connected with an inoculation loop. By injecting potassium hydroxide solution into the detection tube, combined with the inoculation loop, the positive and negative Gram bacteria in the sputum can be identified, avoiding the time-consuming and labor-intensive operation caused by additional sampling in the prior art.

The preferred option two, as the preferred option of the preferred option one, the floating ball is also fixedly connected with the second upward moving rack, the second upward moving rack is meshed with a spur gear, the spur gear is coaxially connected with a bevel gear one, and the bevel gear one is meshed with a Bevel gear 2, the bevel gear is connected with the inoculation ring, and the spur gear, bevel gear 1 and bevel gear 2 are all rotatably connected with the catheter body. By moving up the second rack, the spur 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.

The third preferred option is the preferred option of the second preferred option, the second bevel gear is fixedly connected with a square shaft, the inoculation ring is provided with a square groove, and the square shaft is slidably connected with the square groove. Not only can the rotation of the inoculation loop be driven by the square shaft, but also the inoculation loop can be slid, so the operation is more convenient.

Preferred option 4, as the basic option or the preferred option of preferred option 3, a chute is provided on the tube wall of the sputum suction tube, and a telescopic plate for sealing the chute is slidably connected in the chute, and one end of the telescopic plate is connected to the upper tooth. One of the strips is fixedly connected, and the other end of the telescopic plate is fixedly connected with the sputum suction tube. The chute is sealed by the telescoping plate, which helps to prevent sputum from overflowing after entering the suction tube.

Preferred option 5, as a preferred option of preferred option 4, the end of the sealing cover close to interface 1 is provided with an air primary filter layer and an ultrafiltration membrane in sequence. The impurities in the air are preliminarily filtered through the air primary filter layer, and the ultrafiltration membrane uses its own pore size to selectively separate macromolecules and bacteria in the air from oxygen, so as to obtain a purified breathing air source and prevent patient infection.

Description of drawings

Fig. 1 is the structural representation of multifunctional endotracheal tube of the present invention;

Fig. 2 is the structural schematic diagram of place A in Fig. 1;

Fig. 3 is a top view of the telescopic plate in Fig. 2;

Fig. 4 is a cross-sectional view of the sealing cover in Fig. 1 .

Detailed ways

Further detailed explanation through specific implementation mode below:

The reference signs in the drawings of the description include: disk 1, catheter 10, sealing cover 2, interface 1 20, air primary filter layer 21, ultrafiltration membrane 22, suction tube 3, floating ball 30, extension spring 31, support Ring 4, upward moving rack 1 40, chute 5, hollow plate 50, solid plate 51, humidification pipe 6, interface 2 60, communication port 1 61, piston 62, downward moving rack 63, rotating gear 64, detection Pipe 7, interface 3 70, inoculation ring 71, upward moving rack 2 8, spur gear 80, bevel gear 1 81, bevel gear 2 82, rotating ring 83, rotating shaft 84, square shaft 9, square groove 90, connecting pipe 100 .

As shown in Figure 1, the multifunctional endotracheal catheter includes a catheter body, the catheter body is composed of a disc 1 and a catheter 10, the upper end of the catheter 10 is fixed on the disc 1, and the upper end of the catheter 10 is sealed with a sealing cover 2, such as As shown in Figure 4, the upper end of the sealing cover 2 is an interface 20 for communicating with the catheter 10 and the ventilator; The filter membrane 22 is positioned at the below of the primary filter layer 21 of the air. The preferred sponge film or cotton film of the primary filter layer 21 of the air is used for preliminary filtering of impurities in the air. The ultrafiltration membrane 22 utilizes the aperture size of itself to selectively filter Macromolecules and bacteria are separated from oxygen to obtain a purified breathing air source.

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

As shown in Figure 2, the cross-sectional area of the lower end of the sputum suction tube 3 is greater than the cross-sectional area of the upper end; Sputum tube 3 is connected with extension spring 31; As shown in Figure 3, the top of floating ball 30 is fixedly connected with support ring 4 by support bar, and the left side of support ring 4 is fixedly connected with moving up rack-40; The upper end of the pipe 3 is provided with a chute 5 on the wall of the upper end of the pipe 3. A telescopic plate for sealing the chute 5 is slidably connected in the chute 5. The telescopic plate includes a hollow plate 50 and a solid plate 51 slidably connected in the hollow plate 50. The solid plate The upper end of the 51 is fixedly connected with the support ring 4 so as to be fixedly connected with the upward moving rack-40, and the lower end of the expansion plate is fixedly connected with the sputum suction tube 3, which helps to allow the floating ball 30 to slide through the expansion plate during the ascent process. Groove 5 is sealed, thus prevents sputum from overflowing from sputum suction tube 3 after entering sputum suction tube 3.

The humidification pipe 6 is provided with an interface 2 60 for accessing the atomized humidification liquid, a communication port 1 61 is provided between the humidification pipe 6 and the conduit 10, and a connection port 1 61 for closing the communication port 61 is slidingly connected in the humidification pipe 6 The piston 62 is fixedly connected to the piston 62 with a downward moving rack 63; between the upward moving rack 1 40 and the downward moving rack 63 is engaged with a rotating gear 64 that is rotationally connected with the outer wall of the catheter 10.

The catheter 10 is also fixedly connected with a detection tube 7 communicating with the sputum suction tube 3 through the connecting tube 100. The detection tube 7 is provided with an interface 3 70 for accessing potassium hydroxide solution, and the detection tube 7 is rotatably connected with an inoculation loop 71. . The right side of the floating ball 30 is fixedly connected with an upward moving rack 2 8, and the upward moving rack 2 8 is meshed with a spur gear 80, and the spur gear 80 is coaxially connected with a bevel gear 1 81, and the bevel gear 1 81 is meshed with a bevel gear 2 82 , the bevel gear is connected with the inoculation ring 71, and the spur gear 80, the bevel gear one 81 and the bevel gear two 82 are all rotatably connected with the catheter 10, and the connection mode is to fix a rotating ring 83 on the catheter 10, and the rotating ring 83 is connected in rotation A rotating shaft 84, and then allow the rotating shaft 84 to be fixedly connected with the bevel gear. The bevel gear 2 82 is fixedly connected with a square shaft 9, and the inoculation ring 71 is provided with a square groove 90, and the square shaft 9 is slidably connected with the square groove 90, so that the square shaft 9 can drive the inoculation ring 71 to rotate, and the inoculation ring 71 can be slid .

After inserting the lower end of the catheter body into the patient's trachea, the air is inserted through the interface one 20, and the air is filtered through the air primary filter layer 21 and the ultrafiltration membrane 22, which helps to prevent the patient from being infected with germs. When it is necessary to suck sputum, connect the atomized humidification liquid into the humidification tube 6 through the interface 260; connect the top of the telescopic plate to the negative pressure source through the support ring 4, so that negative pressure is generated in the suction tube 3, The patient's sputum is sucked into the sputum suction tube 3 and supports the floating ball 30 to move upward. Move up the rack 40 and then move up, the rotating gear 64 rotates, the down rack 63 moves down, and the piston 62 moves down until the communication port 61 is closed; The more viscous the liquid, the slower the floating ball 30 rises (because the fluid, that is, the greater the viscosity of the sputum, the smaller the fluidity, so the slower the flow rate of the sputum, the less the amount of sputum sucked in the same time, the floating ball 30 rises The slower the speed), the slower the downward movement of the rack 63. In this way, the slower the connecting port 61 is closed, the more humidification fluid is injected into the trachea. On the contrary, the thinner the sputum, the faster the floating ball 30 rises. The faster the connecting port 61 is closed, the less humidification fluid is injected into the trachea, and the amount of humidification fluid injected can be automatically controlled according to the viscosity of the patient's sputum, avoiding the judgment by artificially identifying the color of sputum in the prior art The subjective influence of the amount of humidification liquid injected, combined with the sealing effect of the sealing cap 2, can always ensure the humidification environment in the trachea, avoiding the poor humidification effect and crossover caused by repeatedly opening the connection between the ventilator and the trachea in the prior art. infection etc.

Potassium hydroxide solution is injected into the detection tube 7 through the interface three 70; while the floating ball 30 rises, a small part of sputum enters the detection tube 7 through the communication tube 100, and the rack two 8 also moves upward, and the spur gear 80 rotates , the first bevel gear 81 and the second bevel gear 82 rotate, and the inoculation ring 71 also rotates through the square shaft 9, thereby stirring the sputum in the detection tube 7. When the inoculation ring 71 stops rotating, people can slide the inoculation ring upwards 71. Observe whether the sticky wire can be pulled out. If the sticky filament can be pulled out, the gram bacteria in the sputum is negative, otherwise it is positive, and there is no need for additional sampling for detection as in the prior art, and the operation is more convenient.

The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the schemes are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (6)

1. multifunctional trachea catheter, including catheter body, it is characterised in that：The end part seal of the catheter body is connected with sealing Lid, the end of the sealing cover are equipped with the interface one for connecting tube ontology and lung ventilator；It is also connected in the catheter body There are sputum aspirator tube and humidifying pipe；It is equipped with floating ball in the sputum aspirator tube, dynamic clamping head and quiet clamping head, and floating ball are connected between floating ball and sputum aspirator tube On be fixedly connected with and move up rack one；The humidifying pipe be equipped with for access be atomized humidification fluid interface two, humidifying pipe with lead It is equipped with communication port one between tube body, is slidably connected in humidifying pipe and is useful for closing the piston of the communication port one, the piston On be fixedly connected with and move down rack；It is described move up rack and move down to be engaged between rack be rotatablely connected with catheter body outer wall Rotate gear.

2. multifunctional trachea catheter according to claim 1, it is characterised in that：Be fixedly connected in the catheter body with The detection pipe of sputum aspirator tube connection, the detection pipe are equipped with the interface three for accessing potassium hydroxide solution, in detection pipe It is rotatably connected to oese.

3. multifunctional trachea catheter according to claim 2, it is characterised in that：It is also fixedly connected with and moves up on the floating ball Rack two, the rack two that moves up are engaged with spur gear, and the spur gear is coaxially connected with bevel gear one, and the bevel gear one nibbles Conjunction has bevel gear two, the bevel gear to be connect with the oese, and spur gear, bevel gear one and bevel gear two are led with described Tube body is rotatablely connected.

4. multifunctional trachea catheter according to claim 3, it is characterised in that：Two side of being fixedly connected with of the bevel gear Axis, the oese is interior to be equipped with square groove, and the square shaft is slidably connected with square groove.

5. multifunctional trachea catheter according to claim 1 or 4, it is characterised in that：The tube wall of the sputum aspirator tube is equipped with Sliding slot, and be slidably connected in sliding slot and be useful for sealing the expansion plate of the sliding slot, one end of the expansion plate and the up-shifting tooth Item one is fixedly connected, and the other end of expansion plate is fixedly connected with the sputum aspirator tube.

6. multifunctional trachea catheter according to claim 5, it is characterised in that：The sealing cover is close to the end of interface one It is equipped with air prefiltration layer and ultrafiltration membrane successively.