CN214550584U - Intubation assembly - Google Patents

Abstract

The utility model relates to an intubation assembly, including putting into inside pipe and the fixed arch of trachea, fixed arch sets up outside the trachea and is fixed in patient's trachea with intubation assembly through the block pipe inside, and wherein, fixed arch connects both ends according to the mode that can absorb the secretion and sets up respectively in inside and outside suction tube of trachea. The utility model discloses can be better be fixed in the tracheal passage in the patient throat with trachea cannula to have tracheal effect of better airtight patient and suction laryngopharynx portion function than traditional larynx portion opening intubate.

Description

Intubation assembly

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an intubate subassembly.

Background

The common tracheal intubation is a method of placing a special endotracheal tube into a trachea or a bronchus through an oral cavity or a nasal cavity and a glottis, provides optimal conditions for unobstructed respiratory tract, ventilation and oxygen supply, respiratory tract suction and the like, and is one of important measures for rescuing patients with respiratory dysfunction. However, in the actual use of the tracheal cannula, the long-time placement of the tracheal cannula in the mouth and nose can cause the respiratory machine-related pneumonia, which is related to factors such as poor patient self condition, chronic lung disease, long-term bed rest and difficult expectoration of phlegm, and the like, so that the patient who needs the tracheal cannula operation for a long time can be treated by the laryngeal opening tracheal cannula as soon as possible. But treatment with laryngeal opening endotracheal tubes still produces laryngeal secretions and there is a potential that endotracheal tubes using conventional cuffs are not easily secured within the patient's airway.

Chinese patent publication No. CN102631737A discloses a sputum aspirating and drug injecting type trachea cannula, a trachea cannula assembly and a manufacturing method thereof, the device comprises a trachea cannula including an arc-shaped cannula main body, an air bag, two drug injecting bags and a sputum aspirating tube, a drug injecting channel is formed in the wall of the cannula main body, a containing groove is formed in the wall of the cannula main body, and a developing line and a sputum aspirating tube are arranged in the containing groove. The intubation component comprises the trachea intubation, a sputum collecting component, an air bag inflating component and a medicine injection component. The sputum suction tube and the straight tube with the inflation channel and the drug injection channel in the tube wall are provided, the tube wall of the straight tube is provided with a containing groove and the inlet and outlet of each channel, and then the straight tube is bent to obtain the intubation main body; and forming the air bag and the bag bodies of the two medicine injection bags, combining the air bag and the bag bodies with the cannula main body, and processing the small medicine injection holes. The forming air bag of the device is still an air bag sleeve which is similar to the traditional trachea cannula and is coaxially sleeved with the air duct. Because of when carrying out the trachea cannula operation at the throat opening, trachea cannula need insert the laryngopharynx perpendicularly, if insert the throat between the trachea cannula of adopting the device, can lead to this trachea cannula angle of buckling too big and this shaping gasbag be difficult for laminating completely around patient's throat air flue wall for it is not firm to connect, and the radian that the shaping gasbag produced also can produce the possibility of stress concentration to certain one side of patient's throat trachea wall, lets the patient produce the discomfort. Chinese patent publication No. CN209378241U relates to a multi-balloon endotracheal tube and a multi-balloon endotracheal tube assembly. Many gasbags trachea cannula includes trachea cannula, first gasbag subassembly, second gasbag subassembly, the first piece of aerifing and the second piece of aerifing of second gasbag subassembly are aerifyd to first gasbag subassembly, second gasbag subassembly, first piece and the second piece of aerifing all are connected with trachea cannula, first gasbag subassembly and second gasbag subassembly cross arrangement, first piece and the intercommunication of first gasbag subassembly of aerifing, the second piece of aerifing and the intercommunication of second gasbag subassembly. The method of fixing the intubation tube by the device is still to sleeve the inflatable air sac, however, the uncontrollable expansion of the air sac and the discharge of blocking tracheal secretion cause the risk of detachment of the intubation tube and suffocation of the patient during the use process of the device.

Thus, there is a need for a laryngeal opening endotracheal tube that is more securely attached, better sealed, and facilitates the aspiration of laryngeal secretions from a patient.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor studied a lot of documents and patents when making the present invention, but the space limit did not list all details and contents in detail, however, this is by no means the present invention does not possess these prior art features, on the contrary the present invention has possessed all features of the prior art, and the applicant reserves the right to increase the related prior art in the background art.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides an intubation assembly, including putting into inside pipe of trachea and fixed protrusion, fixed protrusion sets up outside the trachea and is fixed in patient's trachea with intubation assembly through the block pipe inside, and wherein, fixed protrusion connects both ends according to the mode that can absorb the secretion and sets up respectively in inside and outside suction tube of trachea.

According to a preferred embodiment, the suction tube extends from the outside of the trachea into the recess in the axial direction of the catheter.

According to a preferred embodiment, the groove discharges secretions inside the trachea through the suction tube to the fixing projection provided with the suction pad.

According to a preferred embodiment, the fixing lug is formed by several convex flanks and a central ring connecting the convex flanks, the fixing lug engaging the catheter by means of the central ring.

According to a preferred embodiment, the catheter is connected to the balloon in the form of a loop, the balloon being provided with a proximal end of the balloon near the fixation protrusion and a distal end of the balloon remote from the fixation protrusion, the distal end of the catheter extending through a non-geometric center of a plane in which the proximal end of the balloon lies and a geometric center of a plane in which the distal end of the balloon lies.

According to a preferred embodiment, the distance from the intersection point of the catheter and the plane of the proximal end of the balloon to the geometric center of the plane of the proximal end of the balloon is not less than the length of the radius of the catheter.

According to a preferred embodiment, the intubation assembly further comprises at least one inflation/deflation tube arranged along the axial direction of the catheter, the inflation/deflation tube being connected to the cuff in such a manner as to enable the cuff to achieve inflation or deflation efficacy.

According to a preferred embodiment, the groove arranged in the axial direction of the catheter encloses the inflation/deflation tube or the suction tube in a semi-closed manner in an engagement.

According to a preferred embodiment, one end of the suction tube is provided with a number of through holes facilitating suction of secretions.

According to a preferred embodiment, the position of the intersection point obtained after the intersection of the conduit axis of the cannula with the plane in which the distal end of the cuff lies must not exceed the position in a circular plane with the geometric centre of the plane in which the distal end of the cuff lies as the origin and the radius value of the length of the radius of the cannula.

The utility model has the advantages of:

firstly, the device provided by the utility model can be better fixed in the tracheal passage in the throat of a patient;

secondly, compared with the traditional trachea cannula with an opening at the trachea throat, the device provided by the utility model has better effect of sealing the trachea of the patient;

third, the device provided by the utility model is equipped with the suction tube that the tip contains porous hole, is stopped up by patient's throat polyp when avoiding sucking.

Drawings

FIG. 1 is a sectional view of the overall structure of the utility model in operation at the laryngo pharynx of a patient;

FIG. 2 is a right side view of the cuff and catheter connection section of the present invention;

FIG. 3 is a left side view of the cuff and catheter connection section of the present invention;

fig. 4 is a schematic view of the structure of the adsorption pad of the present invention.

List of reference numerals

100: the catheter 200: bag cover

300: fixing the projection 400: trachea

110: the catheter hub 120: proximal section

130: distal end 140: bending zone

220: cuff distal end 210: proximal end of the cuff

123: inflation and deflation pipe 124: suction tube

125: through hole 126: groove

310: the adsorption pad 410: inner part

420: an outer part 500: the first part

600: the second part

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

To the deficiency of the prior art, the utility model provides an intubation component. In traditional trachea cannula, the gasbag portion that trachea cannula one side end set up is laminated or integrative is set up in trachea cannula outside surface side with the mode of evenly arranging along intubate pipe diameter axial direction, the gasbag that arranges with such regular mode is unfavorable for trachea cannula's gasbag portion to laminate completely in patient's pharynx portion, and external trachea cannula receives the influence of stirring or patient's removal all can make the gasbag of placing the trachea cannula of patient's laryngopharynx portion in and move in its laryngopharynx department, finally causes patient's pharynx portion inflammation suppuration.

Preferably, as shown in fig. 1, the device provided by the present invention is a device having an elongated overall external shape and a cuff 200 provided at the balloon portion. Comprises a catheter 100 inserted into the trachea interior 410, an inflatable bag 200 surrounding the catheter 100 and a fixing protrusion 300 arranged on the trachea exterior 420 and fixing the intubation tube assembly on the trachea interior 410 by clamping the catheter 100, wherein the fixing protrusion 300 is connected with a suction tube 124 with two ends respectively arranged on the trachea interior 410 and the trachea exterior 420 according to a mode capable of absorbing secretions. The cuff 200, in addition to having the ability to be inflated and expanded on the tube 100 as in the prior art cuff 200, also has the ability to conform better to the laryngo pharynx mouth than prior art endotracheal intubation devices, and specifically, the inflatable cuff 200 of the present device is molded in a manner that is more suitable to conform to the human larynx in its axial direction after being inflated with gas. For example, the surface of the cuff 200 that contacts the laryngo pharynx of the patient is provided with an arcuate surface that better conforms to the airway passage of the patient.

Preferably, as shown in fig. 1, when the endotracheal intubation structure of the present device is required to perform an air intake operation to the laryngo pharynx of a patient, air is introduced into the tube interface 110 of the tube 100 of the present device through a ventilator or other mechanical air supply device. The outer end of the catheter 100 is provided with at least one fixing protrusion 300 capable of fixing the device on the skin surface of the larynx, preferably, the fixing protrusion 300 can fix the device on the head or the neck of the patient in a sticking and/or overall surrounding clamping mode, and the disadvantage that the sac cover 200 arranged in the laryngeal opening of the larynx of the patient is rubbed with the laryngo pharynx to cause suppuration due to the touch of external components of the device is favorably prevented.

Preferably, as shown in fig. 1, the cuff 200 located on the guide tube 100 and far away from the fixing protrusion 300 is designed as a balloon cuff having more stable fixing performance in the laryngo pharynx than that of the related art endotracheal tube, while not completely sealing the laryngo pharynx of the patient, which is advantageous for performing a suction operation of suppuration in the laryngo pharynx of the patient while intubating. Wherein the catheter 100 has the same hollow structure as the prior art catheter device, the tubular catheter 100 comprises a proximal portion 120, a distal portion 130 and a curved region 140 intermediate these portions, the catheter 100 being arranged in the tracheal path of a patient in such a way as to be inserted in the throat during use of the device. As shown in FIG. 1, the cuff 200 at the distal end portion 130 of the device is capable of entering the patient's larynx in the direction of the patient's laryngo pharynx when the device is moved vertically downward into the patient's laryngo pharynx.

Preferably, when the device is passed vertically down into the patient's larynx, as shown in fig. 1, the distal portion 130 of the tube 100 is bent away from the patient's head in a horizontal orientation and into a predetermined position in the patient's laryngo pharynx behind the epiglottis, in order to position the tube 100 of the device, including the cuff 200, in the patient's trachea and to perform the function of securing the tube 100 in the trachea 400. The freely expandable and collapsible balloon 200 of the present device comprises a balloon distal end 220 and a balloon proximal end 210. The distal portion 130 of the catheter 100 is embedded in a central location of the plane of the balloon distal end 220 in a manner that extends through the plane of the balloon distal end 220; the catheter 100 is embedded in a non-central position in the plane of the cuff proximal end 210 in a manner that extends through the plane of the cuff proximal end 210. That is, the geometric axis of the catheter 100 and the long axis of the balloon 200 nest the balloon 200 outside the catheter 100 in a bifurcated manner, and preferably, at the position where the catheter 100 penetrates into the plane of the proximal end 210 of the balloon, the distance from the intersection point of the axis of the catheter 100 and the plane to the geometric center of the plane is at least the length of a radius of one catheter 100.

Preferably, when the operator places the catheter 100 including the cuff 200 in the present device into the laryngo pharynx of the patient in the orientation as shown in fig. 1, the cuff 200 is inflated as a whole by applying air pressure to the cuff 200 by an external device and is present in such a manner as to seal the trachea below the laryngo pharynx but not above the laryngo pharynx. Such an arrangement is beneficial for guiding mucus produced after suppuration of the laryngo pharynx out of the laryngeal surface from the laryngeal opening. An absorbent pad 310 for absorbing liquid flowing out from the laryngeal wound is disposed below the fixing protrusion 300. The groove 126 disposed in the axial direction of the catheter 100 is wrapped around the inflation/deflation pipe 123 or the suction pipe 124 in a semi-closed manner in an engagement manner. As shown in fig. 4, the groove 126 discharges secretions inside the trachea through the suction tube to the fixing protrusion provided with the suction pad 310. The absorption pad 310 is detachably connected to the lower surface of the fixing protrusion 300, and the lower surface is located between the throat skin of the patient and the fixing protrusion 300 when the patient is operated by the device. Preferably, an adhesive surface is disposed on one side of the absorption pad 310 for attaching the absorption pad 310 to the lower surface of the fixing protrusion 300. The fixing protrusion 300 is composed of a plurality of convex side wings and a center ring connecting the convex side wings, and the fixing protrusion 300 is sleeved on the catheter through the center ring.

Preferably, in the right side view of the connection section of the cuff 200 and the catheter 100 as shown in fig. 2, the location of the intersection point obtained after the intersection of the axis of the catheter 100 with the plane of the cuff distal end 220 should not exceed the circular plane with the origin at the geometric center of the plane of the cuff distal end 220 and the radius value at the radius length of the catheter 100.

Preferably, in the left side view of the connection section of the cuff 200 and the catheter 100 as shown in fig. 3, the distance from the intersection point obtained after the axis of the catheter 100 intersects the plane in which the proximal end 210 of the cuff is located to the geometric center of the plane in which the proximal end 210 of the cuff is located is equal to or greater than the length of the radius of the catheter 100. Specifically, the distance from the intersection point obtained after the axis of the catheter 100 intersects the plane of the balloon cover proximal end 210 to the geometric center of the plane of the balloon cover proximal end 210 is greater than or equal to 8mm, but the intersecting surface of the catheter 100 and the balloon cover 200 does not exceed the plane of the balloon cover proximal end 210. The catheter 100 is movable on a vertical axis that is centered along the geometry of the plane in which the cuff proximal end 210 lies.

Preferably, FIG. 1 is a full sectional view of the device positioned behind the laryngo pharynx of a patient, showing the configuration and orientation in which the cuff 200 is divided into two first portions 500 of the cuff 200 of different sizes and a second portion 600 of the cuff 200, the first portion 500 conforming to the upper surface of the laryngo pharynx of the patient based on the sealing of the trachea of the patient; the second portion 600 conforms to the lower surface of the laryngo pharynx of the patient based on the form of a seal to the trachea of the patient. The thickness of the bag cover 200 is gradually reduced from the position where the first part 500 is contacted with the upper surface of the laryngo pharynx of the patient to the position where the second part 600 is contacted with the lower surface of the laryngo pharynx of the patient, and the thickness arrangement mode can ensure that the shape change of the bag cover 200 is smaller when the bag cover 200 is inserted into the trachea of the patient, so that the position of the catheter 100 in the bag cover 200 is not easy to deviate, and the requirement that the device is easy to discharge the laryngeal secretion of the patient out of the patient through the laryngeal incision is ensured. Preferably, the wall thickness of the first portion 500 of the cuff 200 is 15-30 μm; the wall thickness of the second portion 600 of the cuff 200 is 5-15 μm.

Preferably, when the endotracheal intubation patient lies flat and undergoes an endotracheal intubation procedure, the thinner region of the second portion 600 is in contact with the lower surface of the patient's laryngo pharynx, where, due to the force of gravity, patient secretions may be trapped and expelled through the laryngeal incision into the liquid absorbent pad 310 disposed below the fixation protrusion 300 to absorb liquid flowing from the laryngeal opening. The second portion 600 of the cuff 200 is thinner relative to the first portion 500, so that the outer wall of the second portion 600 of the cuff 200 is more elastically tensioned, facilitating the discharge of secretions from the point where the second portion 600 contacts the laryngo pharynx of the patient when the patient stands or sits.

Preferably, the material of the cuff 200 member may be a thermoplastic polyurethane polymer, a thermoplastic polyolefin elastomer, a thermoplastic polyolefin block copolymer, an S600S diblock elastomer, an SE600S triblock elastomer, polyvinyl chloride (PVC), polyethylene terephthalate (PET), and blends and mixtures thereof. Preferably, the pouch 200, which is made of polyurethane, has a greater affinity for the human body than the pouch 200, which is made of other materials. The thermoplastic and elastic properties of the polyurethane meet the performance requirements of the cuff 200 during use.

Preferably, the device further comprises an inflation and deflation tube 123 for inflating and deflating the cuff 200 and an aspiration tube 124 capable of aspirating secretions from the patient. At least one inflation/deflation pipe 123 is arranged along the axial direction of the catheter 100, and the inflation/deflation pipe 123 is connected with the balloon cover 200 in a manner that the balloon cover 200 can realize the effects of inflation or deflation. Since the first portion 500 of the cuff 200 and the second portion 600 of the cuff 200 are integrally communicated with each other, the second portion 600 performs the inflation and deflation function when the first portion 500 of the cuff 200 connected to the inflation and deflation pipe 123 through the inflation and deflation pipe 123 is inflated and deflated after the inflation and deflation pipe 123 is communicated with the first portion 500 of the cuff 200. These means for inflating and deflating the cuff 200 may be flexible tubing and related fittings as used in the prior art.

Preferably, as shown in fig. 1, the catheter 100 device further includes a flexible suction tube 124 along the catheter 100 and cuff 200, the suction tube 124 extending from the tracheal exterior 420 into the groove 126 in the axial direction of the catheter 100. So that secretions that eventually accumulate near the tracheal wall end of the second portion 600 of the cuff 200 can be removed. The suction opening of the suction tube 124 can be disposed on either side of the outer wall of the cuff 200. Preferably, a plurality of suction pipes 124 which can be used for suction function are arranged at the arc-shaped crack of the bag cover 200, namely the opening 125, where the bag cover 200 is contacted with the laryngo pharynx pipe wall of the patient, in order to ensure that the suction pipes 124 absorb laryngeal polyps to the nozzle of the suction pipe 124 after generating negative pressure and block the suction pipe 124, a plurality of through holes 125 are arranged at a single suction nozzle, which is beneficial to improving the suction effect. To ensure that aspiration tube 124 does not scratch the throat opening, a groove 126 is provided in conduit 100 at the point of contact with the throat opening to accommodate aspiration tube 124, groove 126 being a U-shaped arc groove in the axial direction of conduit 100. The diameter of the tube 100 at the patient's laryngeal opening is minimized while maintaining the ventilation requirement of the tube 100 to the trachea 400, so that the patient's laryngeal opening is also reduced, reducing the risk of the operation.

The utility model discloses a theory of operation:

firstly, after the unvented device is disinfected and cleaned, the catheter 100 is placed into the trachea 400 along the incision of the patient's throat, the fixing protrusion 300 is fixed by the medical adhesive tape after the strip-shaped protrusion contacts the patient's throat, and then the air is filled into the bag sleeve 200 through the air filling and discharging pipe 123, so that the bag sleeve 200 is expanded and attached to the wall surface of the patient's trachea until the catheter 100 is fixed in the trachea 400 channel.

Second, during surgery or during prolonged use of the device, flexible suction tube 124 is aspirated through the syringe such that suction tube 124 creates a negative pressure and draws patient laryngo pharyngeal secretions away.

Finally, through the gap still existing in the long-strip-shaped groove arranged in the axial direction of the catheter 100 for fixing the suction tube 124 or the inflation and deflation tube 123, under the condition that the patient stands or sits, the secretion on the surface of the bag cover 200 close to one end of the head of the patient can flow out to the absorption pad 310 on the lower surface of the fixing bulge 300 along the gap of the groove 126, and the effect of conveniently discharging the laryngopharynx secretion is realized.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. An intubation assembly, comprising a tube (100) to be placed inside a trachea (410) and a fixation protrusion (300), characterized in that,

the fixing protrusion (300) is arranged on the outer portion (420) of the trachea and fixes the intubation tube assembly on the inner portion (410) of the trachea of the patient through the clamping guide tube (100), wherein the fixing protrusion (300) is connected with suction tubes (124) with two ends respectively arranged on the inner portion (410) and the outer portion (420) of the trachea in a mode of absorbing secretion.

2. The intubation assembly according to claim 1, wherein said suction tube (124) extends from an endotracheal tube exterior (420) into a groove (126) in an axial direction of said catheter tube (100).

3. The intubation assembly according to claim 2, characterized in that said groove (126) expels secretions from the endotracheal tube (410) through said suction tube (124) to said fixation protrusion (300) provided with a suction pad (310).

4. The cannula assembly according to claim 3, characterized in that the fixing lug (300) is formed by a plurality of convex flanks and a central ring connecting the convex flanks, the fixing lug (300) being fitted over the catheter (100) by means of the central ring.

5. The cannula assembly according to claim 4, wherein the catheter tube (100) is connected to the cuff (200) in a loop-like manner, the cuff (200) being provided with a proximal cuff end (210) proximal to the fixation protrusion (300) and a distal cuff end (220) distal to the fixation protrusion (300), the distal end portion (130) of the catheter tube (100) extending through a non-geometric center of a plane in which the proximal cuff end (210) lies and a geometric center of a plane in which the distal cuff end (220) lies.

6. The cannula assembly of claim 5, wherein the distance from the intersection point of the catheter tube (100) with the plane of the cuff proximal end (210) to the geometric center of the plane of the cuff proximal end (210) is no less than the radial length of the catheter tube (100).

7. The intubation assembly according to claim 6, further comprising at least one inflation/deflation tube (123) arranged along an axial direction of said guide tube (100), said inflation/deflation tube (123) being connected to said cuff (200) in such a way as to enable an inflation or deflation efficacy of said cuff (200).

8. An intubation assembly according to claim 7, characterized in that said groove (126) arranged in the axial direction of said catheter tube (100) is semi-hermetically wrapped in an engagement around said inflation/deflation tube (123) and/or said suction tube (124).

9. A cannula assembly according to claim 8, characterized in that one end of the suction tube (124) is provided with a number of through holes (125) facilitating suction of secretions.

10. The cannula assembly of claim 9, wherein the intersection point obtained after the conduit axis of the catheter (100) intersects the plane of the cuff distal end (220) is located within a circular plane having an origin at the geometric center of the plane of the cuff distal end (220) and a radius value at the radius length of the catheter (100).

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