CN210020751U - Improved conjoined double-cuff double-inner-diameter tracheal catheter - Google Patents

Abstract

The utility model provides a pair of conjuncted two cuff two internal diameter endotracheal tubes of improvement, include: a catheter body comprising first and second catheter tubes connected together, a first cuff and a second cuff, the second catheter tube having an inner diameter greater than the inner diameter of the first catheter tube; the first sleeve bag is arranged on the catheter body and close to the operation end, and a first connecting pipe for inflating and deflating the first sleeve bag is arranged on the catheter body in a clinging manner; the second sleeve bag is tightly attached to one side, far away from the operation end, of the first sleeve bag, and a second connecting pipe used for inflating and deflating the second sleeve bag is tightly attached to the catheter body. The beneficial effects of the above technical scheme are: the pipe body has adopted two segmentation designs, and the second trachea internal diameter that is located above the glottis is great, can reduce the resistance of breathing and ventilating, also is favorable to attracting the sputum, in addition, can reduce pressure in turn in order to avoid the trachea mucosa to lack blood near first cover bag and second cover bag together, can also avoid the sputum siltation.

Description

Improved conjoined double-cuff double-inner-diameter tracheal catheter

Technical Field

The utility model relates to a clinical medicine technical field, concretely relates to conjuncted two cuff two internal diameter endotracheal tubes of improvement.

Background

In the clinical anesthesia and critical area, there is a need for an endotracheal tube, and there is a single cuff endotracheal tube in the prior art, as shown in fig. 1, which solves some problems, but still has the following disadvantages: 1. when the respirator is used for ventilation for a long time, the cuff is kept in an inflated state for too long time, so that the tracheal mucosa is easy to press and lose blood, and necrotic perforation can be caused seriously. Once the air is deflated or the cuff pressure is reduced, serious consequences such as air leakage of a breathing circuit, leakage of inhaled anesthetic and the like are easily caused; 2. aiming at patients such as small adults, children and the like, when the catheter with smaller inner diameter is used, the respiratory ventilation resistance is easily increased, secretion is difficult to attract, and the risks of airway blockage and the like are easily caused.

Double-cuff endotracheal tubes have also been developed to address the above drawbacks, as shown in figure 2, which improve the lack of non-depressurisation or deflation of the cuffs, but have certain drawbacks: 1. the two cuffs which are independently arranged at intervals obviously enlarge the whole length of the cuffs, so that the vocal cords are easy to ride and crush; 2. when the upper cuff pressure is released, the area between the two cuffs is easy to accumulate sputum, and when the cuff pressure is released, the sputum flows to the air passage or even the lung, so that the possibility of air passage blockage or lung infection and the like can occur.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a conjuncted two cuff two internal diameter endotracheal tubes of improvement can also avoid taking place the glottis when avoiding the trachea mucosa to lack blood and ride and stride the wound, can also reduce the resistance to draught in addition, is convenient for attract the secretion.

The utility model provides a pair of conjuncted two cuff two internal diameter endotracheal tubes of improvement, include:

the device comprises a catheter body, a first catheter and a second catheter, wherein the two ends of the catheter body are respectively an operation end inserted into a trachea and a connecting end located outside the body and used for connecting equipment, the catheter body comprises a first catheter and a second catheter which are connected together, the first catheter corresponds to the position from the operation end to the glottis of a human body, the second catheter corresponds to the position from the glottis of the human body to the connecting end, and the inner diameter of the second catheter is larger than that of the first catheter;

the first cuff is arranged on the catheter body close to the operation end, a first connecting pipe used for inflating and deflating the first cuff is arranged on the catheter body in a clinging manner, and the first connecting pipe is communicated with the first cuff;

the second cuff is tightly attached to one side, far away from the operation end, of the first cuff, a second connecting pipe used for inflating and deflating the second cuff is tightly attached to the catheter body, and the second connecting pipe is communicated with the second cuff.

The beneficial effects of the above technical scheme are: the pipe body has adopted two segmentation designs to the position that corresponds human glottis is the boundary line, has two kinds of different internal diameters, and the internal diameter that is located the inside first pipe of trachea below the glottis is less, is convenient for insert, and it is great to be located the second trachea internal diameter above the glottis, can reduce the resistance of breathing and ventilating, also is favorable to attracting the sputum, in addition, can reduce pressure in turn in order to avoid the trachea mucosa to lack blood near first cover bag and second cover bag together, can also avoid the sputum siltation.

Furthermore, the position of the first connecting pipe close to the connecting end is separated from the catheter body to form a first movable end, and the first movable end is provided with a first port connected with inflation and deflation equipment. Fill gassing equipment through connecting, can be full of gas or the evacuation gas with first set of bag, the first expansion end of formation can conveniently be operated first connecting pipe, avoids influencing the pipe body when filling the gassing.

Furthermore, the position of the second connecting pipe, which is close to the connecting end, is separated from the catheter body to form a second movable end, and the second movable end is provided with a second port connected with the inflation and deflation equipment. Fill gassing equipment through connecting, can be full of gas or the evacuation gas with the second cuff, the second expansion end of formation can conveniently be operated the second connecting pipe, avoids influencing the pipe body when filling the gassing.

Further, the first connecting pipe and the second connecting pipe are respectively arranged on two sides of the catheter body. When the first cuff and the second cuff are inflated and deflated, the staggered first connecting pipe and the second connecting pipe can be separately and independently connected with the inflation and deflation equipment, so that interference is avoided.

Further, the inner diameter of the second conduit is 0.5-2mm larger than the inner diameter of the first conduit.

Further, the second cuff and the side of the first cuff that is in close contact are fixed together. Avoiding the generation of gaps.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a prior art single cuff endotracheal tube;

FIG. 2 is a schematic view of a prior art dual cuff endotracheal tube;

fig. 3 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals: a first catheter tube 100, a second catheter tube 200, a first cuff 110, a second cuff 120, a first connecting tube 300, a second connecting tube 400, a first free end 310, a second free end 410, a first port 311, a second port 411.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship as shown in the drawings for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media.

As shown in fig. 3, the present embodiment provides an improved conjoined double-cuff double-inner-diameter endotracheal tube, which includes a tube body, a first cuff 110 and a second cuff 120, where two ends of the tube body are respectively an operation end inserted into an trachea and a connection end located outside the body and used for connecting equipment, the tube body includes a first tube 100 and a second tube 200 connected together, the first tube 100 corresponds to a position from the operation end to a glottis of a human body, the second tube 200 corresponds to a position from the glottis of the human body to the connection end, and an inner diameter of the second tube 200 is greater than an inner diameter of the first tube 100; the first cuff 110 is arranged on the catheter body close to the operation end, a first connecting pipe 300 for inflating and deflating the first cuff 110 is arranged on the catheter body in a clinging manner, and the first connecting pipe 300 is communicated with the first cuff 110; the second cuff 120 is tightly attached to the first cuff 110 at a side away from the operation end, a second connection tube 400 for inflating and deflating the second cuff 120 is tightly attached to the catheter body, and the second connection tube 400 is communicated with the second cuff 120. During manufacturing, the first guide pipe 100 and the second guide pipe 200 can be integrally formed, and a cone transition is adopted at the joint of the first guide pipe 100 and the second guide pipe 200; in addition, the joint may be manufactured by first manufacturing a reducing joint, and both ends of the reducing joint are respectively connected to the first conduit 100 and the second conduit 200, so as to connect the first conduit 100 and the second conduit 200 together.

The pipe body has adopted two segmentation designs to the position that corresponds human glottis is the boundary line, has two kinds of different internal diameters, and the internal diameter that is located tracheal inside below the glottis is less for the internal diameter, is convenient for insert, and it is great to be located the second trachea internal diameter above the glottis, can reduce the resistance of breathing and ventilating, also is favorable to attracting the sputum, in addition, can reduce pressure in turn in order to avoid the trachea mucosa to be ischemic near first cover bag 110 and second cover bag 120 together, can also avoid the sputum siltation. In order to eliminate the gap between the first cuff 110 and the second cuff 120, a piece of material may be used to separate the first cuff 110 from the second cuff 120 at the interface where the two cuffs meet, i.e., to form a concave seam inward at the separation point, during manufacture.

The position of the first connecting tube 300 close to the connecting end is separated from the catheter body to form a first movable end 310, and the first movable end 310 is provided with a first port 311 for connecting an inflation and deflation device. Through connecting the inflation and deflation equipment, the first cuff 110 can be filled with gas or emptied gas, and the formed first movable end 310 can be conveniently operated on the first connecting pipe 300, so that the influence on the catheter body during inflation and deflation is avoided.

The position of the second connecting pipe 400 near the connecting end is separated from the catheter body to form a second movable end 410, and the second movable end 410 is provided with a second port 411 for connecting an inflation and deflation device. Through connecting to fill gassing equipment, can be full of gas or the atmospheric gas with second cuff 120, the second expansion end 410 of formation can conveniently be operated second connecting pipe 400, avoids influencing the pipe body when filling the gassing.

The first and second connection pipes 300 and 400 are provided to both sides of the catheter body, respectively. When the first and second cuffs 110 and 120 are inflated and deflated, the first and second connection tubes 300 and 400 can be separately and independently connected to an inflation and deflation device, so that interference can be avoided.

The first and second connection tubes 300 and 400 are both disposed inside the catheter body, which is provided with connection holes at positions opposite to the first and second cuffs 110 and 120, the first connection tube 300 is protruded from the connection holes and communicates with the first cuff 110, and the second connection tube 400 is protruded from the connection holes and communicates with the second cuff 120.

The inner diameter of the second guide duct 200 is 0.5 to 2mm, preferably 1mm, larger than the inner diameter of the first guide duct 100. The first conduit 100 and the second conduit 200 have the same wall thickness, i.e. the outer diameter of the second conduit 200 is also 1mm larger than the outer diameter of the first conduit 100.

In addition to separating the first cuff into two during manufacture, the second cuff and the abutting sides of the first cuff can be secured together. Avoiding the generation of gaps.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (6)

1. An improved conjoined double-cuff double-inner-diameter tracheal catheter, which is characterized by comprising:

the tracheal catheter comprises a catheter body, wherein two ends of the catheter body are respectively an operation end inserted into a trachea and a connecting end positioned outside the body and used for connecting equipment, the catheter body comprises a first catheter (100) and a second catheter (200) which are connected together, the first catheter (100) corresponds to the position from the operation end to the glottis of a human body, the second catheter (200) corresponds to the position from the glottis of the human body to the connecting end, and the inner diameter of the second catheter (200) is larger than that of the first catheter (100);

the first cuff (110) is arranged on the catheter body close to the operation end, a first connecting pipe (300) used for inflating and deflating the first cuff (110) is arranged on the catheter body in a clinging mode, and the first connecting pipe (300) is communicated with the first cuff (110);

the second cuff (120), the second cuff (120) is clung to the side of the first cuff (110) far away from the operation end, a second connecting pipe (400) used for inflating and deflating the second cuff (120) is clung to the catheter body, and the second connecting pipe (400) is communicated with the second cuff (120).

2. An improved conjoined double cuff double inner diameter endotracheal tube according to claim 1, characterized in that the position of the first connecting tube (300) near the connecting end is separated from the tube body to form a first movable end (310), and the first movable end (310) is provided with a first port (311) for connecting an inflation and deflation device.

3. An improved conjoined double-cuff double-inner-diameter endotracheal tube according to claim 1, characterized in that the position of the second connecting tube (400) near the connecting end is separated from the tube body to form a second movable end (410), and the second movable end (410) is provided with a second port (411) for connecting an inflation and deflation device.

4. An improved conjoined double cuff double inner diameter endotracheal tube according to any one of claims 1 to 3, characterized in that the first connecting tube (300) and the second connecting tube (400) are separately provided to both sides of the tube body.

5. An improved conjoined double cuff double inner diameter endotracheal tube according to any one of claims 1 to 3, characterized in that the inner diameter of the second tube (200) is 0.5-2mm larger than the inner diameter of the first tube (100).

6. The improved conjoined double-cuff double-inner-diameter endotracheal tube according to claim 1, characterized in that the side surfaces of the second cuff (120) and the first cuff (110) which are tightly attached are fixed together.

Images