CN211611193U - Trachea cannula - Google Patents

Abstract

The utility model discloses a trachea cannula, including outer tube and inner tube, the inner tube is pegged graft in the inside of outer tube, be provided with the scale mark on the outer wall of outer tube, cup jointed high-volume low pressure cuff on the outer wall of outer tube one end, and the outside of outer tube has cup jointed low-volume high pressure cuff, high-volume low pressure cuff and low-volume high pressure cuff all include contact layer, fixed bed and inner spacer, evenly open on the outer wall of contact layer has a medicine hole, inner spacer and contact layer have the exocoel around being formed with, and inner spacer and fixed bed center on being formed with the inner chamber, the one end of inner tube is opened there is the port, and opens on the inner tube is close to one side outer wall of port and has the china ink phenanthrene hole. The utility model discloses can reduce the damage of contact point to the air flue, two cover sacs can better airtight air flue moreover, avoid the mistake to inhale effectively, can exhaust to cover sacs more accurately simultaneously, reduced the harm that probably leads to the fact the patient by a wide margin.

Description

Trachea cannula

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a trachea cannula.

Background

The technology of placing a special endotracheal tube into the trachea through the glottis is called trachea intubation, and the technology can provide optimal conditions for smooth air passage, ventilation and oxygen supply, respiratory tract suction, prevention of aspiration and the like.

However, the current trachea cannula is fixed by a single cuff, and if only the high-volume low-pressure cuff is used, although the damage of the cuff to the airway wall of a patient can be reduced, the trachea cannula cannot be effectively fixed and prevent air leakage and aspiration; if only the low-volume high-pressure cuff is adopted, although the trachea cannula can be firmly fixed, the trachea cannula is very easy to be pressed and damaged; meanwhile, if the existing tracheal cannula is excessively inflated, the air release of the cuff cannot be finely controlled, so that the operation time of the tracheal cannula is prolonged, and the optimal treatment time of a patient is seriously missed.

Therefore, there is a need to design an endotracheal tube to solve the above problems.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, adapt to the practical needs and provide a fixed and firm trachea cannula with novel structural design.

The utility model provides an endotracheal tube, includes outer tube and inner tube, the inner tube is pegged graft in the inside of outer tube, be provided with the scale mark on the outer wall of outer tube, cup jointed high-volume low pressure cuff on the outer wall of outer tube one end, and the outside of outer tube has cup jointed low-volume high pressure cuff, high-volume low pressure cuff and low-volume high pressure cuff all include contact layer, fixed bed and interior interlayer, evenly open on the outer wall of contact layer has a medicine hole, interior interlayer and contact layer are around being formed with the exocoel, and interior interlayer and fixed bed are around being formed with the inner chamber, the one end of inner tube is opened there is the port, and opens on the outer wall of one side that the inner tube is close to the port and has the china ink phenanthrene hole, the one end grafting that the.

Furthermore, an inflation connecting pipe is inserted in an interlayer between the inner pipe and the outer pipe, one end of the inflation connecting pipe is communicated with the inner cavity, and the other end of the inflation connecting pipe is sleeved with an indicating balloon.

Furthermore, the inside of instructing the sacculus has preset and has aerifyd the cavity, the top fixedly connected with flange of instructing the sacculus, and the top of instructing the sacculus is pegged graft and is had the plunger, the plunger extends to the inside of aerifing the cavity, and the inside of plunger is opened there is the connection chamber, it has the venthole that becomes the equidistance and distribute to open on the inner wall in connection chamber, and the venthole link up the plunger, the inside of aerifing the cavity is provided with the spring, the top of spring and the bottom surface joint of plunger, and the bottom of spring and the bottom surface joint of aerifing the cavity, it has the air inlet to open on the outer wall of one side.

Furthermore, an anesthetic injection tube is inserted in an interlayer between the inner tube and the outer tube, one end of the anesthetic injection tube is communicated with the outer cavity, and the other end of the anesthetic injection tube is sleeved with an anesthetic head.

Furthermore, a medicine injection connecting pipe is inserted in a position, close to the joint, in the interlayer of the inner pipe and the outer pipe, and one end of the medicine injection connecting pipe is sleeved with a medicine injection head.

The utility model has the advantages that:

1. through the high-pressure low-pressure cuff and the low-pressure cuff that hold that set up, enable trachea cannula and fix on the air flue inner wall more firmly, it is fixed mainly to rely on high-pressure low-pressure cuff, high-pressure low-pressure cuff has the advantage of the big resting capacity of high compliance, can reduce the damage of contact point to the air flue, low-pressure cuff is supplementary fixed, make trachea cannula keep in the middle of the trachea, prevent that the pipe is most advanced to damage the air flue, two cuffs can better airtight air flue simultaneously, avoid inhaling by mistake effectively.

2. Through setting up the medicine hole on the contact layer, enable anesthetic through anesthesia head and anesthetic injection tube accurately inject into on the outer wall that cuff and air flue contacted, can realize the accurate anesthesia of fixed point, when reducing anesthetic and using, can reduce the harm of anesthetic to patient's health, can also guarantee to have better anesthesia effect.

3. Through the instruction sacculus that sets up, can inflate the cuff and make it fixed, indicate the atmospheric pressure that the sacculus can judge in the cuff through observing, avoid causing the damage of patient's trachea wall because of overinflation, the venthole simultaneously, connect the chamber, the flange, the exhaust mechanism that plunger and spring formed can be more convenient and accurately to the cuff exhaust, reduce the pressure that the cuff contact layer led to the fact the air flue wall, make pressure keep in suitable ground within range more easily, when having guaranteed the normal work of cuff, the harm that probably leads to the fact the patient has been reduced to the greatest extent.

Drawings

Fig. 1 is a schematic structural view of a trachea cannula according to the present invention;

fig. 2 is a sectional view of a trachea cannula according to the present invention;

fig. 3 is a sectional view of an indicating balloon structure of a trachea cannula according to the present invention;

fig. 4 is a sectional view of the high-volume low-pressure cuff and the low-volume high-pressure cuff of the endotracheal intubation provided by the present invention.

In the figure: 1 outer tube, 2 inner tubes, 3 high-volume low-pressure cuff, 4 low-volume high-pressure cuff, 5 ports, 6 Murphy's eye, 7 joints, 8 indication saccule, 9 inflation connecting tube, 10 injection connecting tube, 11 injection head, 12 anesthesia head, 13 anesthesia injection tube, 14 flange, 15 air outlet hole, 16 plunger, 17 connecting cavity, 18 air inlet, 19 spring, 20 scale mark, 21 medicine outlet hole, 22 inner interlayer, 23 contact layer, 24 inner cavity, 25 fixed layer, 26 outer cavity, 27 inflation cavity

Detailed Description

The invention will be further described with reference to the following figures and examples:

referring to fig. 1-4, a trachea cannula, including outer tube 1 and inner tube 2, the inner tube 2 is inserted in the outer tube 1, the outer wall of the outer tube 1 is equipped with scale mark 20, enable the doctor to observe the inserting depth of the trachea cannula more clearly, the outer wall of one end of the outer tube 1 is sleeved with a high-capacity low-pressure cuff 3, which has the advantages of high compliance and large resting capacity, and can reduce the damage of the contact point to the airway, and the outer part of the outer tube 1 is sleeved with a low-capacity high-pressure cuff 4, which can assist in fixing, so that the trachea cannula is kept in the middle of the trachea, and the tip of the catheter can prevent the airway from being damaged, the high-capacity low-pressure cuff 3 and the low-capacity high-pressure cuff 4 both include a contact layer 23, a fixed layer 25 and an inner spacer layer 22, the outer wall of the contact layer 23 is evenly provided with drug outlet holes 21, so that the anesthetic can be accurately injected into the, can realize the accurate anesthesia of fixed point, interior interlayer 22 and contact layer 23 are around being formed with exocoel 26, and interior interlayer 22 and fixed bed 25 are around being formed with inner chamber 24, and open the one end of inner tube 2 has port 5, and open on the inner tube 2 is close to one side outer wall of port 5 has china ink and phoenix hole 6, if trachea cannula is not hard up or the port is unexpected to be blockked up, can assist to ventilate and prevent to threaten patient's life because of the intubate blocks up, and the one end that port 5 was kept away from to inner tube 2 is pegged graft and.

Furthermore, an inflation connecting pipe 9 is inserted in an interlayer between the inner pipe 2 and the outer pipe 1, one end of the inflation connecting pipe 9 is communicated with the inner cavity 24, the other end of the inflation connecting pipe 9 is sleeved with an indication balloon 8, the air pressure in the cuff can be judged by observing the indication balloon, and the damage to the tracheal wall of a patient caused by over inflation is avoided.

Furthermore, an inflation cavity 27 is preset in the indicating balloon 8, a flange 14 is fixedly connected with the top of the indicating balloon 8, and the top end of the indicating balloon 8 is inserted with a plunger 16, the plunger 16 extends to the interior of the inflation cavity 27, and the inside of the plunger 16 is provided with a connecting cavity 17, the inner wall of the connecting cavity 17 is provided with air outlets 15 which are distributed at equal intervals, and the air outlet hole 15 penetrates through the plunger 16, so that the cuff can be exhausted more conveniently and accurately, the pressure of the contact layer of the cuff on the airway wall is reduced, the pressure is kept in a proper range more easily, the spring 19 is arranged in the inflating cavity 27, the top end of the spring 19 is clamped with the bottom surface of the plunger 16, and the bottom end of the spring 19 is clamped with the bottom surface of the inflation cavity 27, so that the plunger 16 can automatically reset, and the outer wall of one side of the indication balloon 8 is provided with an air inlet 18 which can fill air into the cuff.

Furthermore, an anesthetic injection tube 13 is inserted into the interlayer between the inner tube 2 and the outer tube 1, one end of the anesthetic injection tube 13 is communicated with the outer cavity 26, and the other end of the anesthetic injection tube 13 is sleeved with an anesthetic head 12.

Furthermore, a medicine injection connecting pipe 10 is inserted in a position close to the joint 7 in the interlayer of the inner pipe 2 and the outer pipe 1, and one end of the medicine injection connecting pipe 10 is sleeved with a medicine injection head 11.

The working principle is as follows: when in use, a doctor connects the air inlet 18 to the inflating device, fills air into the inner cavities 24 of the high-volume low-pressure cuff 3 and the low-volume high-pressure cuff 4 through the inflating connecting pipe 9, observes whether the two cuffs have air leakage phenomenon, if the two cuffs can work normally, the doctor takes up the indicating balloon 8 through the flange 14 and presses the plunger 16, the air outlet hole 15 at the lower end of the plunger 16 is communicated with the inner cavity of the indicating balloon 8, the air in the inflating cavity 27 of the indicating balloon 8 and the two cuff inner cavities 24 is discharged through the air outlet hole 15 at the lower end of the plunger 16 and the air outlet holes 15 at the upper ends of the connecting cavity 17 and the plunger 16, and the spring 19 at the bottom end of the plunger 16 jacks up and; the doctor inserts the end of the inner tube 2 and the end of the outer tube 1 with the port 5 and the Murphy's eye 6 downwards into the airway through the mouth of the patient, the inserting depth is observed through the scale marks 20, when the proper position is reached, the gas is filled into the two cuffs to fix the tracheal cannula on the inner wall of the airway of the patient, the air pressure in the two cuffs is adjusted by the indicating balloon 8, so that the inner cavity 24 reaches the proper air pressure, anesthetic drug is injected into the two-cuff outer chamber 26 through the anesthetic injection tube 13 by the anesthetic head 12, because of the extrusion of the air pressure of the inner cavity 24, the anesthetic is sprayed out to the airway wall of the patient through the drug outlet hole 21 for local anesthesia, then the joint 7 is inserted into the exposed end of the inner tube 2, the other end of the joint 7 is connected to a breathing machine, if the drug is required to be injected into the patient, a syringe may be attached to the administration tip 11 and the medicine is passed through the inner tube along the administration connection tube 10 to the affected part.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims (5)

1. The trachea cannula comprises an outer tube (1) and an inner tube (2), and is characterized in that the inner tube (2) is inserted in the outer tube (1), scale marks (20) are arranged on the outer wall of the outer tube (1), a high-volume low-pressure cuff (3) is sleeved on the outer wall of one end of the outer tube (1), a low-volume high-pressure cuff (4) is sleeved outside the outer tube (1), the high-volume low-pressure cuff (3) and the low-volume high-pressure cuff (4) both comprise a contact layer (23), a fixed layer (25) and an inner partition layer (22), medicine outlet holes (21) are uniformly formed in the outer wall of the contact layer (23), the inner partition layer (22) and the contact layer (23) surround and form an outer cavity (26), the inner partition layer (22) and the fixed layer (25) surround and form an inner cavity (24), one end of the inner tube (2) is provided with a port (5), and the outer wall of one side, close to the port (5), of the inner tube (2) is provided with Murphy holes, and a joint (7) is inserted into one end of the inner pipe (2) far away from the port (5).

2. The trachea cannula according to claim 1, wherein an inflation connecting pipe (9) is inserted into the interlayer of the inner pipe (2) and the outer pipe (1), one end of the inflation connecting pipe (9) is communicated with the inner cavity (24), and the other end of the inflation connecting pipe (9) is sleeved with an indicating balloon (8).

3. An endotracheal tube according to claim 2, characterized in that an inflation cavity (27) is foreseen inside the indicator balloon (8), a flange (14) being fixedly connected to the top of the indicator balloon (8), and the top end of the indicating saccule (8) is inserted with a plunger (16), the plunger (16) extends to the interior of the inflating cavity (27), and the inside of the plunger (16) is provided with a connecting cavity (17), the inner wall of the connecting cavity (17) is provided with air outlets (15) which are distributed at equal intervals, the air outlet hole (15) penetrates through the plunger (16), a spring (19) is arranged inside the inflation cavity (27), the top end of the spring (19) is clamped with the bottom surface of the plunger (16), and the bottom end of the spring (19) is clamped with the bottom surface of the inflation cavity (27), and an air inlet (18) is formed in the outer wall of one side of the indication balloon (8).

4. The trachea cannula according to claim 1, wherein an anesthetic injection tube (13) is inserted into the interlayer of the inner tube (2) and the outer tube (1), one end of the anesthetic injection tube (13) is communicated with the outer cavity (26), and the other end of the anesthetic injection tube (13) is sleeved with an anesthetic head (12).

5. The trachea cannula according to claim 4, wherein a medicine injection connecting pipe (10) is inserted in a position close to the joint (7) in the interlayer of the inner pipe (2) and the outer pipe (1), and a medicine injection head (11) is sleeved at one end of the medicine injection connecting pipe (10).

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