CN219847718U

CN219847718U - Disposable trachea cannula

Info

Publication number: CN219847718U
Application number: CN202321000485.5U
Authority: CN
Inventors: 段书霞; 师月; 刘振; 邹勇; 张宽; 王东岳; 佘开江; 郝洪安; 翟梦洁; 王闪闪; 冯志粉; 祝彦丽
Original assignee: China Resources Medical Products Henan Co ltd
Current assignee: China Resources Medical Products Henan Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-10-20
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of medical equipment, in particular to a disposable trachea cannula which comprises a catheter, an air bag, an air pipe, a single-joint ball and a pressure limiter. The guide pipe is internally embedded with a spiral guide wire, the outer wall of the guide pipe is provided with a depth mark, the front end of the guide pipe is provided with a breathing machine butting part, the front end of the guide pipe is provided with a fixer in a tightly sliding manner, the tail end of the guide pipe is provided with an air vent, the outer wall of the tail end of the guide pipe is provided with an air bag, the guide pipe is fixedly connected with a gas pipe and a liquid suction pipe, the air bag is communicated with the tail end of the gas pipe, the front end of the gas pipe is respectively connected with a gas inlet pipe and a gas outlet pipe, the gas inlet pipe is connected with a single joint ball, and the gas outlet pipe is connected with a pressure limiter. The single-linked ball is adopted to inflate the air bag, so that the inflation is more convenient, the control of the pressure in the air bag is realized through the pressure limiter, the postoperative discomfort of a patient caused by the fact that the pressure in the air bag presses the air pipe greatly is avoided, and the inflatable air bag is convenient to use in an operation.

Description

Disposable trachea cannula

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a disposable trachea cannula.

Background

The human throat has epiglottis cartilage on the trachea, closes the trachea when swallowing, avoids food and water to enter the trachea, opens the trachea when breathing, realizes respiratory function, and in general anesthesia operation, muscle relaxant lets the epiglottis cartilage no longer function, in order to guarantee patient's normal breathing, needs to intubate in the trachea, lets the breathing machine replace patient's spontaneous breathing, guarantees the normal oxygen demand of organism.

During intubation, the anesthetic laryngoscope picks up epiglottis cartilage, the glottis is exposed, the tracheal intubation passes through the glottis and enters the trachea, and after the intubation is fixed by the adhesive tape, the breathing machine can be connected to take over the breathing of a patient.

After the trachea is inserted into the catheter, a certain amount of air is input through the injector to inflate the air bag at the front end of the catheter, the respiration amount is monitored, the phenomenon of backflow and aspiration is avoided, but because the inner diameter of the trachea of a human body is different, the air transmission amount cannot be accurately controlled, the condition that the air transmission amount is too large or too small often occurs, the air bag presses the trachea, so that a patient can feel strong discomfort in throat after operation, when the air transmission amount is too small, a gap exists between the air bag and the inner wall of the trachea, the respiration amount cannot be effectively monitored, and meanwhile, the phenomenon of backflow and aspiration is easy to occur, so that the pressure in the air bag can be controlled, the air bag is attached to the inner wall of the trachea, and meanwhile, the trachea is pressed by the disposable trachea cannula, so that the problem to be solved is currently needed.

Disclosure of Invention

The utility model aims at overcoming the defects of the prior art, and provides a disposable trachea cannula so as to achieve the purposes of controlling the pressure in an air sac and avoiding the excessive pressure in the air sac from pressing the trachea of a patient to cause strong discomfort in the throat of the patient after operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a disposable trachea cannula, includes the pipe, the pipe front end be provided with breathing machine butt joint portion, the end of pipe is provided with the air vent, fixedly connected with gas transmission on the pipe outer wall, is provided with the gasbag on the outer wall of pipe end department, the gasbag is connected with the end of gas-supply pipe, the front end of gas-supply pipe is connected with intake pipe and outlet duct respectively, the intake pipe is connected with the single-joint ball, the outlet duct is connected with the pressure limiter.

Further, the pressure limiter in be provided with the installation cavity, the outlet duct is linked together with the bottom of installation cavity, the top fixed mounting of installation cavity has the spring, the spring free end is connected with the dop, the dop cooperatees with the outlet duct, be provided with the venthole on the installation cavity lateral wall, the venthole is linked together with external atmosphere.

Further, a spiral guide wire is embedded in the catheter.

Further, a depth mark is arranged on the outer side wall of the catheter.

Further, fixedly connected with drawing liquid pipe on the pipe outer wall, the inlet of drawing liquid pipe is located the top of gasbag, the drawing liquid end of drawing liquid pipe is provided with syringe butt joint portion, installs the leather buckle closure on the syringe butt joint portion.

Further, the front end of the catheter is provided with a fixer, the fixer is positioned at the rear of the butt joint part of the breathing machine, a connecting hole is formed in the fixer, the connecting hole is in tight sliding connection with the catheter, a hand-held part and an occluding part are arranged in the fixer, and the hand-held part is positioned at the outer side of the occluding part.

The utility model has the beneficial effects that:

1. the catheter has good flexibility and bending resistance, effectively prevents the catheter from kinking, and can realize the grasping of the insertion depth of the catheter;

2. the single-connection ball is adopted to inflate the air bag, so that the inflation is more convenient, the control of the pressure in the air bag is realized through the pressure limiter, and the postoperative discomfort of a patient caused by the fact that the pressure in the air bag greatly presses the air pipe is avoided;

3. can realize the evacuation to patient tracheal hydrops, effectively guarantee patient's life safety, adopt the fixer to fix simultaneously, avoid traditional sticky tape to fix, when convenient to use, also can avoid the discomfort after the sticky tape adhesion.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 in accordance with the present utility model;

fig. 3 is a schematic view of the structure of the voltage limiter of the present utility model.

Name corresponding to each label in the figure:

1. a conduit; 10. a ventilator docking portion; 11. a holder; 111. a hand-held part; 112. a bite portion; 113. a connection hole; 12. a liquid suction pipe; 121. a syringe docking portion; 1211. pi Kougai; 122. a liquid inlet; 13. a gas pipe; 131. an air inlet pipe; 132. an air outlet pipe; 14. a single-joint ball; 141. a one-way air outlet valve; 142. a one-way air inlet valve; 15. a pressure limiter; 151. a mounting cavity; 152. a spring; 153. a chuck; 154. an air outlet hole; 16. an air bag; 17. a spiral guide wire; 18. depth identification; 19. and a vent.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Embodiments of the utility model:

as shown in fig. 1 to 3, in the present embodiment, a flexible catheter 1 is provided, a ventilator interface 10 is provided at the front end of the catheter 1, a vent 19 is provided at the distal end of the catheter 1, a spiral guide wire 17 is embedded in the catheter 1, and a depth marker 18 is provided on the catheter 1.

One side of the conduit 1 is fixedly connected with a gas pipe 13, the surface of the tail end of the conduit 1 is provided with a gas bag 16, the gas bag 16 is communicated with the tail end of the gas pipe 13, the front end of the gas pipe 13 is respectively connected with a gas inlet pipe 131 and a gas outlet pipe 132, the gas inlet pipe 131 is connected with a single-connection ball 14, a one-way gas outlet valve 141 is arranged at the contact position of the single-connection ball 14 and the gas inlet pipe 131, and the other side of the single-connection ball 14 is provided with a one-way gas inlet valve 142; the outlet pipe 132 is connected with the pressure limiter 15, is provided with the installation cavity 151 in the pressure limiter 15, and the outlet pipe 132 is linked together with the bottom of installation cavity 151, and the spring is installed at the top of installation cavity 151, 152, and the spring 152 other end is connected with the dop 153, and the dop 153 cooperatees with the outlet pipe 132 to be provided with venthole 154 in one side of installation cavity 151.

The other side of the catheter 1 is fixedly connected with a liquid suction pipe 12, the inlet end of the liquid suction pipe 12 is positioned above the air bag 16, the air suction end of the liquid suction pipe 12 is provided with a syringe butt joint part 121, the syringe butt joint part 121 is provided with a leather buckle cover 1211, the front end of the catheter 1 is provided with a fixer 11, the fixer 11 is provided with a connecting hole 113, the connecting hole 113 is in tight sliding connection with the catheter 1, the fixer 11 is provided with a hand-held part 111, and the hand-held part 111 is connected with a meshing part 112.

The principle of the utility model is as follows:

when the utility model is used, after general anesthesia is carried out on a patient, the patient's epiglottis is lifted by the laryngoscope, at the moment, the catheter 1 can be inserted into the trachea of the patient by penetrating through the glottis, the spiral guide wire 17 is embedded in the catheter 1, the flexibility and the bending property are further realized, the kink of the catheter 1 is effectively prevented, the laryngoscope can play the roles of illumination and imaging in the use process, and specific working operation steps are existing and are not repeated here.

Before the catheter 1 is inserted into the trachea, the air bag 16 is not inflated, otherwise, the catheter 1 cannot be inserted into the trachea, after the catheter 1 is inserted into place (judged by the depth mark 18), the air bag 16 is inflated through the single-linked ball 14, and the air bag 16 is inflated to block the trachea, so that on one hand, the air inlet and outlet of the human body exhale can only pass through the catheter 1, and on the other hand, the respiration can be monitored and controlled, and on the other hand, the backflow aspiration phenomenon (such as that gastric contents flow back to the oropharynx and enter the respiratory tract again to cause clinical manifestations of respiratory symptoms or complications) in the anesthesia process is avoided, so that the life safety of a patient is ensured.

The single-connection ball 16 adopts the cooperation of the one-way air inlet valve 142 and the one-way air outlet valve 141 to realize the inflation of the air bag 16, the single-connection ball 16 is existing, the working principle is simpler, the description is omitted here, the pressure limiter 15 can realize the control of the pressure in the air bag 16 in the inflation process, the pressure in the air bag 16 is not too large, the air pipe is not pressed too much by the volume of the air bag 16, the condition of postoperative throat discomfort is caused, when the pressure in the air bag 16 is large, the air in the air outlet pipe 132 can press the clamping head 153 to move outwards, and the pressure in the air bag 16 is adjusted, but the attention is paid to the fact that the elastic coefficient of the spring 152 is not too large, and the phenomenon that the pressure limiter 15 is insensitive in adjustment is avoided.

At this time, the cannula is basically placed, and then the fixer 11 is pushed, so that the teeth of the patient are occluded on the occluding portion 113, the fixer 11 can move and fix by means of the friction force between the connecting hole 113 and the catheter 1, the fixing requirement on the catheter 1 can be met, and at this time, the breathing machine docking portion 10 is docked with the breathing machine, so that the spontaneous breathing of the patient can be taken over.

When the patient has symptoms of reflux aspiration, excessive phlegm and the like in the operation process, the accumulated liquid above the air bag 16 can be extracted through the liquid extracting pipe 12, the leather buckle cover 1211 is opened, the injector is connected with the injector butt joint part 121, the accumulated liquid in the trachea of the patient can be extracted, the gas pipe 13 is sheared after the operation is finished, the catheter 1 is extracted after the air bag 16 is retracted, and the steps are similar to those of the placement and are not repeated.

Claims

1. A disposable tracheal cannula comprising a catheter (1), characterized in that: the front end of the conduit (1) is provided with a breathing machine butt joint part (10), the tail end of the conduit (1) is provided with a vent (19), the outer wall of the conduit (1) is fixedly connected with a gas pipe (13), the outer wall of the tail end of the conduit (1) is provided with an air bag (16), the air bag (16) is connected with the tail end of the gas pipe (13), the front end of the gas pipe (13) is respectively connected with an air inlet pipe (131) and an air outlet pipe (132), the air inlet pipe (131) is connected with a single-connection ball (14), and the air outlet pipe (132) is connected with a pressure limiter (15).

2. A single-use tracheal tube as in claim 1, wherein: the pressure limiter (15) in be provided with installation cavity (151), outlet duct (132) are linked together with the bottom of installation cavity (151), the top fixed mounting of installation cavity (151) has spring (152), spring (152) free end is connected with chuck (153), chuck (153) cooperate with outlet duct (132), be provided with venthole (154) on installation cavity (151) lateral wall, venthole (154) are linked together with external atmosphere.

3. A single-use tracheal tube as in claim 1, wherein: the guide tube (1) is internally embedded with a spiral guide wire (17).

4. A single-use tracheal tube as in claim 1, wherein: the depth mark (18) is arranged on the outer side wall of the catheter (1).

5. A single-use tracheal tube as in claim 1, wherein: the catheter is characterized in that a liquid suction pipe (12) is fixedly connected to the outer wall of the catheter (1), a liquid inlet (122) of the liquid suction pipe (12) is located above the air bag (16), a syringe butt joint part (121) is arranged at the liquid suction end of the liquid suction pipe (12), and a leather buckle cover (1211) is arranged on the syringe butt joint part (121).

6. A single-use tracheal tube as in claim 1, wherein: the front end of the catheter (1) is provided with a fixer (11), the fixer (11) is positioned at the rear of the ventilator butt joint part (10), the fixer (11) is provided with a connecting hole (113), the connecting hole (113) is tightly connected with the catheter (1) in a sliding way, the fixer (11) is provided with a hand-held part (111) and a meshing part (112), and the hand-held part (111) is positioned at the outer side of the meshing part (112).