CN112190808B

CN112190808B - Tracheotomy tube with clear liquid function

Info

Publication number: CN112190808B
Application number: CN202011233893.6A
Authority: CN
Inventors: 周菁; 刘钰; 许飞; 张兴容
Original assignee: First Affiliated Hospital of Nanchang University
Current assignee: First Affiliated Hospital of Nanchang University
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-06
Anticipated expiration: 2040-11-06
Also published as: CN112190808A

Abstract

The invention discloses a tracheotomy tube with a clear liquid function, which comprises a tube body, wherein the outer end of the tube body is provided with a connecting port, the connecting port is connected with a breathing machine, the inner end of the tube body is provided with an air bag, the outer end of the tube body is also provided with an inflating needle for inflating and deflating the air bag, the outer end of the tube body is connected with a clear liquid tube, the clear liquid tube comprises a liquid inlet tube for infusing liquid medicine and a liquid outlet tube for sucking sputum, the inner pipe diameters of the liquid inlet tube and the liquid outlet tube are the same, a connecting channel is arranged between the liquid inlet tube and the liquid outlet tube, one end of the connecting channel close to the liquid inlet tube is provided with a first piston, one end of the connecting channel close to the liquid outlet tube is provided with a second piston, a sealed air cavity is formed between the first piston and the second piston, a movable sheet is arranged in the air cavity, a first spring is, the first spring and the second spring are identical.

Description

Tracheotomy tube with clear liquid function

Technical Field

The invention relates to the field of tracheotomy tubes.

Background

The tracheotomy tube is used for adult patients needing anesthesia, artificial ventilation or other assisted respiration, and mainly comprises an outer cannula, a fixed wing, an inner cannula (which can be repeatedly used or disposable), an introducer and a fixed belt.

The patent with publication number CN 204485002U discloses a double-air-bag tracheotomy tube, belongs to a medical instrument, and solves the problem that the existing tracheotomy tube is easy to block a pipeline due to phlegm adhesion, phlegm stagnation and phlegm scab or phlegm embolism. The liquid inlet and outlet device can feed liquid and suck liquid, and the liquid inlet and outlet amount is difficult to control in such a way, so that the liquid inlet speed and the liquid outlet speed are ideally the same, otherwise, useful mucus in the human body is excessively sucked out, or excessive liquid medicine is accumulated above the air bag.

Disclosure of Invention

The invention provides a tracheotomy tube with a liquid cleaning function, which aims at the problems in the prior art and comprises a tube body, wherein the distal end of the tube body is provided with a connecting port which is connected with a breathing machine, the proximal end of the tube body is provided with an air bag, the distal end is also provided with an inflating needle which inflates and deflates the air bag, the tracheotomy tube is characterized in that the distal end of the tube body is connected with a liquid cleaning tube, the liquid cleaning tube comprises a liquid inlet tube for infusing liquid medicine and a liquid outlet tube for aspirating sputum, the inner pipe diameters of the liquid inlet tube and the liquid outlet tube are the same, a connecting channel is arranged between the liquid inlet tube and the liquid outlet tube, one end of the connecting channel, which is close to the liquid inlet tube, is provided with a first piston, one end of the connecting channel, which is close to the liquid outlet tube, is provided with a second piston, a sealed air cavity is formed between the first piston and the second piston, a movable sheet is, the first spring and the second spring are the same, a light source is arranged at the tail end of the movable sheet, a positioning column is further arranged on the first piston, the positioning column can penetrate through the movable sheet, the movable sheet can move along the positioning column to be capable of translating between the first piston and the second piston, a position sensor is arranged in the direction opposite to the light source, the position sensor can sense the position of the light source to detect the translation position of the movable sheet, and a pressure sensor is further arranged in the air cavity to obtain air pressure in the air cavity; the liquid inlet pipe is also provided with a liquid inlet pump for controlling liquid inlet of the liquid inlet pipe, the liquid outlet pipe is provided with a liquid pump for controlling liquid outlet of the liquid outlet pipe, the air pressure sensor and the position sensor are both connected with the controller, the controller is connected with the liquid inlet pump and the liquid pump, and the controller controls the liquid inlet pump and the liquid outlet pump according to data obtained by the air pressure sensor and the position sensor;

a liquid inlet channel is arranged in the tube body and is communicated with the liquid inlet tube, a plurality of liquid outlets are arranged at the near end of the liquid inlet channel, and the liquid medicine flows out of the liquid outlets; a liquid outlet channel is also arranged in the tube body and is communicated with the liquid outlet tube, and a liquid suction port is arranged at the near end of the liquid outlet channel so as to suck the mixed liquid of the sputum liquid medicine above the air bag into the liquid outlet channel.

The air bag comprises an inner bag and an outer bag, the outer bag covers the outer portion of the inner bag, the inner bag can be inflated and inhaled, a buffer solution is arranged between the inner bag and the outer bag, and the amount of the buffer solution can be adjusted. The inner bag is communicated with the inflation needle, and the inflation needle can inflate and deflate the inner bag. The far end of the tube body is also provided with a liquid filling needle which can fill buffer liquid and release buffer liquid into the space between the inner sac and the outer sac. The buffer solution is one of deionized water, normal saline and alcohol.

The tracheotomy tube can accurately control the liquid inlet amount and the liquid outlet amount of liquid medicine, so that the liquid medicine and the liquid medicine are balanced, and the influence on a patient is prevented.

Drawings

FIG. 1 is a schematic view of a tracheotomy tube

FIG. 2 is a schematic view of a cleaning tube;

FIG. 3 is a schematic diagram of a flow rate control unit;

FIG. 4 is a schematic view of a liquid outlet channel;

FIG. 5 is a controller work flow diagram;

FIG. 6 is a schematic view of an oxygen connector tube;

FIG. 7 is a schematic view of an air outlet fitting;

FIG. 8 is a schematic view of a seal assembly;

FIG. 9 is a schematic diagram of a control unit;

FIG. 10 is a schematic view of a chute;

FIG. 11 is a schematic view of a seal channel;

FIG. 12 is a first partial schematic view;

FIG. 13 is a schematic view of a barrier sheet;

the labels in the figure are: 100-tube body, 110-liquid inlet channel, 111-liquid outlet, 120-liquid outlet channel, 121-liquid suction port, 200-air bag, 210-inner bag, 220-outer bag, 300-connecting port, 410-inflating needle, 420-inflating needle, 500-clear liquid tube, 510-liquid inlet tube, 520-liquid outlet tube, 530-flow rate control unit, 531-connecting channel, 532-first piston, 533-second piston, 534-movable plate, 5341-light source, 535-first spring, 536-second spring, 537-positioning column, 538-position sensor and 539-air pressure sensor.

Detailed Description

As shown in fig. 1, the invention discloses a tracheotomy tube with a serum function, comprising a tube body 100, wherein the distal end of the tube body 100 is provided with a connecting port 300, the connecting port is connected with a respirator to supply oxygen to a human body through the tube body, the proximal end of the tube body 100 is provided with a balloon 200, the distal end is further provided with an inflation needle 410 for inflating and deflating the balloon, and in some other embodiments, the inflation needle can be provided by other devices capable of providing gas.

As shown in fig. 1, a clear liquid tube 500 is connected to the distal end of the tube body, as shown in fig. 2, an enlarged view of the clear liquid tube is shown, as shown in fig. 2, a liquid inlet tube 510 for inputting liquid medicine, a liquid outlet tube 520 for sucking sputum and a flow rate control unit 530 are included in the clear liquid tube, the flow rate control unit 530 controls the flow rate of liquid in the liquid outlet tube 520 and the liquid inlet tube 510, the inner diameters of the liquid inlet tube 510 and the liquid outlet tube 520 are the same, as shown in fig. 3, the flow rate control unit 530 is an enlarged view of the flow rate control unit 530, the flow rate control unit includes a connecting channel 531 between the liquid inlet tube and the liquid outlet tube, a first piston 532 is disposed at one end of the connecting channel close to the liquid inlet tube 510, a second piston 533 is disposed at one end of the connecting channel close to the liquid outlet tube 520, a sealed air cavity is formed between the first piston and the second piston, a second spring 536 is arranged between the movable plate and the second piston, the first spring and the second spring are the same, a light source 5341 is arranged at the tail end of the movable plate, a positioning column 537 is further arranged on the first piston 532, the positioning column can penetrate through the movable plate 534, the movable plate can move along the positioning column so as to be capable of translating between the first piston and the second piston, a position sensor 538 is arranged in the direction opposite to the light source, the position sensor can sense the position of the light source so as to detect the translation position of the movable plate, and an air pressure sensor 539 is further arranged in the air cavity so as to acquire air pressure in the air cavity; the liquid inlet pipe 510 is also provided with a liquid inlet pump for controlling liquid inlet of the liquid inlet pipe, the liquid outlet pipe is provided with a liquid pump for controlling liquid outlet of the liquid outlet pipe, the air pressure sensor and the position sensor are both connected with the controller, the controller is connected with the liquid inlet pump and the liquid pump, and the controller controls the liquid inlet pump and the liquid outlet pump according to data obtained by the air pressure sensor and the position sensor.

The flow velocity of the liquid medicine in the liquid inlet pipe and the liquid outlet pipe influences the hydraulic pressure of the first piston and the second piston. When the flow rate of liquid inlet pipe 510 is greater than the flow rate of liquid outlet pipe 520, the hydraulic pressure that first piston received is less than the hydraulic pressure that second piston received at this time, and first piston has the trend towards the liquid inlet pipe motion, and movable plate 534 will move along with this time, and then makes light source 5341 position change, is detected by position inductor 538, and the controller controls liquid inlet pump or drawing liquid pump according to the data control liquid inlet pump that position inductor detected and adjusts the flow rate in liquid inlet pipe or the liquid outlet pipe, makes both the same.

When the velocity of flow in feed liquor pipe and the drain pipe all increased, two pistons can keep away from the motion each other, and atmospheric pressure between two pistons in this time can reduce, is detected by baroceptor, and the controller is according to data control feed liquor pump and the drain pump that baroceptor detected for the velocity of flow of feed liquor pipe and drain pipe all reduces. On the contrary, when the flow rate is reduced, the air pressure is increased, and the controller controls the liquid inlet pump and the liquid outlet pump to increase the flow rate. Therefore, the air pressure data detected by the air pressure sensor is related to the absolute flow rates of the liquid inlet pipe and the liquid outlet pipe. The position data of the light source is related to the difference between the liquid inlet flow rate and the liquid outlet flow rate, and the controller adjusts the liquid inlet flow rate and the liquid outlet flow rate to be set values according to the difference so as to ensure that clear liquid can be carried out safely in time.

A liquid inlet channel 110 is arranged in the tube body 100 and is communicated with a liquid inlet tube 510, a plurality of liquid outlets 111 are arranged at the near end of the liquid inlet channel, and liquid medicine flows out of the liquid outlets; the tube body is also provided with a liquid outlet channel 120 which is communicated with the liquid outlet tube 520, and the near end of the liquid outlet channel is provided with a liquid suction port 121 to suck the mixed liquid of the sputum liquid medicine above the air bag into the liquid outlet channel 120. The air bag 200 comprises an inner bag 210 and an outer bag 220, wherein the outer bag covers the outer part of the inner bag, the inner bag can be inflated and inhaled, a buffer solution is arranged between the inner bag and the outer bag, and the amount of the buffer solution can be adjusted. The inner bladder is in communication with an inflation needle 410 that is capable of inflating and deflating the inner bladder. The far end of the tube body is also provided with a liquid filling needle 420 which can fill buffer liquid and release buffer liquid into the space between the inner sac and the outer sac. The buffer solution is one of deionized water, normal saline and alcohol. The buffer solution can change the profile of the air bag according to the profile of the throat part to adapt to the shape of the throat, so that the contact area of the air bag and the throat is increased, and the extrusion of the air bag to the throat is reduced.

In the embodiment, an oxygen connecting tube for tracheotomy tube is used for connecting the intubation tube disclosed in the present invention and an oxygen machine, as shown in fig. 6, the oxygen connecting tube 600 includes a connecting tube body 630 and air outlet connectors 610 located at two ends of the connecting tube body 630, the air outlet connectors are connected with the oxygen machine, and the air outlet connectors are connected with a connecting port 300 of the tracheotomy tube.

As shown in fig. 7, the outlet connector 610 includes an insertion portion 611, a connector portion 614, a first portion 615 and a second portion 617, the insertion portion is connected to the connector portion (the lower end of fig. 7), the connector portion is connected to the first portion, the first portion is connected to the second portion, the second portion 617 is connected to the connecting pipe body 630, and a sealing member 612 is disposed on a sidewall of the insertion portion and capable of sealing a space between the insertion portion and the connecting port 300.

As shown in fig. 7 and 8, the sealing assembly includes a sealing air cavity 6121 in the insertion portion, a sealing passage 6122 extending from the sealing air cavity to the outside, and an elastic membrane 6123 at the distal end of the sealing passage, the sealing air cavity extending to the side wall of the joint portion, the air pressure in the sealing air cavity can be changed to expand the elastic membrane to the outside to further seal between the insertion portion and the connection port and contract the elastic membrane from the outside, as shown in fig. 8, which is a state when the elastic membrane is contracted, as shown in fig. 11.

As shown in fig. 7, a ventilation channel is formed in the joint portion 614, as shown in fig. 10, a schematic view of observing the joint portion from the outside is shown, a sliding slot 6141 is formed on the outer side of the joint portion, a fixing slot 6142 is formed in the side surface of the sliding slot, a control unit 613 is arranged on the side wall of the joint portion, the control unit controls the air pressure in the sealed air cavity, the control unit includes a collision member 6131 and an extrusion piston 6133 which are located in the sealed air pressure 6121, the collision member is fixed in the sealed air pressure, a spring 6132 is arranged between the extrusion piston and the collision member, the extrusion piston can move in the sealed air pressure to extrude the spring and change the air pressure of the sealed air pressure, a rod member 6134 is arranged on the extrusion piston, the rod member can rotate relative to the extrusion piston, a connecting rod 6135, the sliding groove is communicated with sealed air pressure 6121, and the sliding block can be rotated into the fixing groove to fix the position of the sliding block and further fix the position of the extrusion piston.

When the connection tube and the insertion tube need to be sealed, the sliding block 6136 slides downwards to the bottom and then slides into the fixing groove 6142, the corresponding rod and the extrusion piston 6133 move downwards, then the spring is extruded, the air pressure of the sealing air cavity 6121 is increased, the elastic membrane 6123 is exaggerated, and the state as shown in fig. 11 is achieved for sealing. When the sealing is not needed, the sliding block is taken out of the fixing groove 6142 and slides to the uppermost end of the sliding groove 6141 under the reset extrusion of the spring, the sealing air pressure is reduced, the elastic membrane contracts, and the state as shown in fig. 8 is achieved. The invention can conveniently seal the connecting pipe and the insertion pipe, has good sealing effect, is not easy to leak gas, can increase the tightness between the connecting pipe and the insertion pipe while being easy to seal, and ensures that the connecting pipe and the insertion pipe are not easy to fall off.

As shown in fig. 7, a small vent passage 616 is arranged in the middle of the first part 615, a large vent passage is arranged in the middle of the second part, the large vent passage is communicated with the small vent passage, the sectional area of the small vent passage is smaller than that of the large vent passage, so that larger air flow exists in the small vent passage, a negative pressure passage 6151 is arranged on the side surface of the small vent passage, the negative pressure passage extends from the small vent passage to the large vent passage, a driving piston (618) is arranged in the negative pressure passage, the driving piston is connected with a blocking piece 619, the blocking piece is in an oval shape and the like, the air pressure change in the negative pressure passage drives the driving piston to move, and further drives the blocking piece 619 to move, and. The blocking piece 619 includes a vent port 6191, and the movement of the blocking piece changes the size of the vent port in the large channel to change the oxygen flow rate. An annular groove 6171 is arranged in the second part, the edge of the blocking piece is clamped in the annular groove 6171, and the blocking piece can move along the annular groove in at least one direction. The driving piston is connected with the barrier through a connecting column 6110.

When the air flow in the small channel 616 becomes larger, the air pressure in the negative pressure channel is reduced at this time, so that the driving piston 618 moves towards the left direction as shown in fig. 12, and further the blocking piece moves towards the left side, thereby reducing the exposed area of the vent in the large channel, and further reducing the air flow rate in the large channel.

Claims

1. A tracheotomy tube with a clear liquid function comprises a tube body (100), wherein a far end of the tube body (100) is provided with a connecting port (300) which is connected with a breathing machine, a near end of the tube body (100) is provided with an air bag (200), and a far end is also provided with an inflating needle (410) which inflates and deflates the air bag, the tracheotomy tube is characterized in that the far end of the tube body is connected with a clear liquid tube (500), the clear liquid tube comprises a liquid inlet tube (510) used for infusing liquid medicine and a liquid outlet tube (520) used for sucking phlegm, the inner pipe diameters of the liquid inlet tube (510) and the liquid outlet tube (520) are the same, a connecting channel (531) is arranged between the liquid inlet tube and the liquid outlet tube, one end of the connecting channel, which is close to the liquid inlet tube (510), is provided with a first piston (532), one end of the connecting channel, which is close to the liquid, a movable plate (534) is arranged in the air cavity, a first spring (535) is arranged between the movable plate and the first piston, a second spring (536) is arranged between the movable plate and the second piston, the first spring and the second spring are the same, a light source (5341) is arranged at the tail end of the movable plate, a positioning column (537) is further arranged on the first piston (532), the positioning column can penetrate through the movable plate (534), the movable plate can move along the positioning column to be capable of translating between the first piston and the second piston, a position sensor (538) is arranged in the direction opposite to the light source, the position sensor can sense the position of the light source to detect the translation position of the movable plate, and an air pressure sensor (539) is further arranged in the air cavity to acquire air pressure in the air cavity; the liquid inlet pipe (510) is also provided with a liquid inlet pump for controlling liquid inlet of the liquid inlet pipe, the liquid outlet pipe is provided with a liquid pump for controlling liquid outlet of the liquid outlet pipe, the air pressure sensor and the position sensor are both connected with the controller, the controller is connected with the liquid inlet pump and the liquid pump, and the controller controls the liquid inlet pump and the liquid outlet pump according to data obtained by the air pressure sensor and the position sensor;

a liquid inlet channel (110) is arranged in the tube body (100), the liquid inlet channel is communicated with the liquid inlet tube (510), a plurality of liquid outlets (111) are arranged at the near end of the liquid inlet channel, and liquid medicine flows out of the liquid outlets; the tube body is also internally provided with a liquid outlet channel (120), the liquid outlet channel is communicated with the liquid outlet pipe (520), and the near end of the liquid outlet channel is provided with a liquid suction port (121) for sucking the mixed liquid of the sputum liquid medicine above the air bag into the liquid outlet channel (120).

2. The clear functional tracheostomy tube according to claim 1, characterized in that said balloon (200) comprises an inner balloon (210) and an outer balloon (220), the outer balloon covering the outside of the inner balloon, the inner balloon being capable of being inflated and aspirated, a buffer being provided between the inner and outer balloons, the amount of buffer being adjustable.

3. The clear functional tracheostomy tube of claim 2 wherein said inner cuff is in communication with an inflation needle (410) which is capable of inflating and deflating the inner cuff.

4. The clear tracheostomy tube of claim 3 wherein said distal end of said tube body is further provided with a fluid filling needle (420) capable of filling and relieving fluid into the space between the inner and outer balloons.