CN212395567U - Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system - Google Patents

Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system Download PDF

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Publication number
CN212395567U
CN212395567U CN202021874534.4U CN202021874534U CN212395567U CN 212395567 U CN212395567 U CN 212395567U CN 202021874534 U CN202021874534 U CN 202021874534U CN 212395567 U CN212395567 U CN 212395567U
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China
Prior art keywords
laryngeal mask
cuff
mask device
cover body
endotracheal tube
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CN202021874534.4U
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Chinese (zh)
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何欢
邵云
刘月华
韩方凯
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SHANGHAI STOMATOLOGICAL DISEASE CENTER
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SHANGHAI STOMATOLOGICAL DISEASE CENTER
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Abstract

The utility model provides a cooperation endotracheal tube intranasal intubate's laryngeal mask device and supplementary ventilation system, this laryngeal mask device includes: the inflatable air bag comprises a cover body and an inflatable tube, wherein the cover body is provided with an annular air bag, a second cover body part and a third cover body part; the annular bladder has a gas outlet side for facing the patient's trachea and a back side facing away from the gas outlet side; the side wall of the annular air bag is communicated with a cylindrical inflation connector, the inflation connector is matched and connected with one end of an inflation tube, and the other end of the inflation tube is used for connecting an inflating device; the second part of the cover body is in a horn cylinder shape, the large-caliber end of the second part of the cover body is connected to the back side of the annular air bag, and the small-caliber end of the second part of the cover body is connected with the third part of the cover body; the third part of the mask body is provided with a clamping section, a cuff clamping cavity is formed inside the clamping section and is used for being matched, clamped and fixed with a cuff after the tracheal catheter is inflated. The laryngeal mask device can be matched with a tracheal catheter to insert the trachea through the nose, and the laryngeal mask device and the tracheal catheter are firmly fixed and easily separated when disconnected.

Description

Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system
Technical Field
The utility model relates to the technical field of medical equipment, in particular to cooperation endotracheal tube intranasal intubate's laryngeal mask device and supplementary ventilation system.
Background
The adoption of laryngeal mask ventilation is one of the important methods for controlling the ventilation of a patient in the general anesthesia operation process, belongs to supraglottic ventilation, and has the advantages of small wound and quick tube drawing, so that the mode is preferably adopted in many operation projects.
Most of the conventional medical laryngeal masks can only be inserted through the mouth, as shown in figure 1, a common laryngeal mask device inserted through the mouth comprises a mask body part 1 and an airway tube part 2, wherein the two parts are arranged into two separable parts made of two different soft materials by some laryngeal mask devices, and the two parts are arranged into a whole made of soft materials by some laryngeal mask devices, no matter which form is adopted, when the laryngeal mask which can only be inserted through the mouth is used, the airway tube part is positioned in the mouth, and gas is sent into the trachea of a patient as shown by arrows in the figure. However, the operation range of oral surgery is in the mouth, and the intraoral airway causes inconvenience for the operation of doctors, so that the application of the laryngeal mask in the special operation fields of oral and maxillofacial surgery, otorhinolaryngology and the like is limited due to the inherent limitation.
In view of the above circumstances, there are companies that have developed a naso-intubation laryngeal mask, for example, Genesis company has developed a naso-intubation laryngeal mask, wherein the adopted interface is a socket interface, and the socket interface must be made of hard material to ensure that the two-section interface is firmly connected, but on one hand, the hard socket interface is hard due to its hard texture and easily damages nasal mucosa when being inserted through the nose; on the other hand, the disadvantage is that it is difficult to balance the firmness of the interface during use and the convenience of disconnecting the interface during tube drawing during operation. Thus, such nasoenterable laryngeal masks still present significant limitations in clinical practice.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a laryngeal mask device and an auxiliary ventilation system for a transnasal intubation tube of a fitting endotracheal tube, which can be inserted into the transnasal intubation tube, is fixed firmly, and can be separated easily.
The utility model provides a cooperation endotracheal tube intranasal intubate's laryngeal mask device, a serial communication port, include: the inflatable air bag comprises a cover body and an inflatable tube, wherein the cover body is provided with an annular air bag, a second cover body part and a third cover body part; the annular bladder has a gas outlet side for facing the patient's trachea and a back side facing away from the gas outlet side; the side wall of the annular air bag is communicated with a cylindrical inflation connector, the inflation connector is matched and connected with one end of an inflation tube, and the other end of the inflation tube is used for connecting an inflating device; the second part of the cover body is in a horn cylinder shape, the large-caliber end of the second part of the cover body is connected to the back side of the annular air bag, and the small-caliber end of the second part of the cover body is connected with the third part of the cover body; the third part of the mask body is provided with a clamping section, a cuff clamping cavity is formed inside the clamping section and is used for being matched, clamped and fixed with a cuff after the tracheal catheter is inflated.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: the third part of the cover body is also provided with a port section, the port section is cylindrical, and the inner diameter of the port section is less than or equal to 75% of the diameter of the maximum radial section of the clamping cavity of the cuff.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein, the axial length of the clamping cavity of the cuff is 12mm to 20 mm; the maximum radial cross-section of the cuff engaging cavity has a diameter dimension of 15mm to 25 mm.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein the third part of the shield has an overall axial length of 14mm to 22 mm.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein the wall thickness of the annular bladder is less than the wall thickness of the second portion of the housing; the wall thickness of the third part of the cover is smaller than the wall thickness of the second part of the cover.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein, the outer diameter of the inflation tube is 2.5mm to 3 mm; the length of the inflation tube is 150mm to 220 m.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein, the cover body is medical silica gel or medical rubber.
The utility model provides an among the cooperation endotracheal tube nasotracheal intubation's laryngeal mask device, still have such characteristic: wherein, the terminal surface of port section is the arc surface.
The utility model also provides an auxiliary ventilation system, a serial communication port, include: the laryngeal mask device is matched with the tracheal catheter for the nasal intubation, the tracheal catheter, the inflating device and the breathing device, wherein the inflating pipe of the laryngeal mask device is connected with the inflating device; the cuff of the tracheal catheter is inflated and then is matched and arranged in the cuff clamping cavity of the laryngeal mask device, so that the ventilation pipeline of the tracheal catheter is communicated with the air outlet side of the mask body; the ventilation pipeline of the tracheal catheter is connected with a breathing device.
In the utility model provides an in the auxiliary ventilation system, still have such characteristic: wherein the breathing device is a respirator or a respirator.
The utility model discloses an effect and effect:
the utility model discloses a cooperation endotracheal tube intranasal intubate's laryngeal mask device's cover body third part has the block section, and the inside of block section is formed with cover bag block chamber, and this laryngeal mask device can realize with endotracheal tube's separation and be connected to can realize the purpose that endotracheal tube intranasal used. In addition, the third part of the mask body is also provided with a port section, and the caliber of the port section is moderate, so that the tracheal catheter which is not inflated/deflated can be easily inserted/pulled out; the cuff of the tracheal catheter can be firmly connected with the cuff clamping cavity under the inflation state without slipping, and the unification of the fixation stability and the tube drawing convenience is realized.
Drawings
FIG. 1 is a schematic view of a prior art use of a conventional transorally inserted medical laryngeal mask device;
fig. 2 is a schematic structural view (side view) of a laryngeal mask device fitted with a transnasal intubation of an endotracheal tube according to example 1 of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 at A;
fig. 4 is a schematic structural view (back side view) of a laryngeal mask device fitted with a transnasal intubation of an endotracheal tube according to example 1 of the present invention;
fig. 5 is a schematic structural view (side view of the air outlet) of a laryngeal mask device fitted with a transnasal intubation of an endotracheal tube according to example 1 of the present invention;
FIG. 6 is a schematic diagram of the cuff inflation of the endotracheal tube wherein (a) is the state before the cuff is inflated and (b) is the state after the cuff is inflated;
fig. 7 is a schematic side view of the laryngeal mask device fitted with a transnasal intubation of an endotracheal tube in accordance with example 1 of the present invention fitted with an endotracheal tube;
fig. 8 is a schematic view (side view of the air outlet) of the laryngeal mask device matched with the transnasal intubation of the endotracheal tube in the embodiment 1 of the present invention in matching and inserting with the endotracheal tube;
fig. 9 is a schematic view of the use of the assisted ventilation system of example 1 of the present invention;
fig. 10 is a schematic structural view (side view) of a laryngeal mask device fitted with a transnasal intubation of an endotracheal tube according to example 2 of the present invention;
fig. 11 is a schematic view showing the state in which the laryngeal mask device fitted with the transnasal intubation of the endotracheal tube according to embodiment 2 of the present invention is fitted and inserted into the endotracheal tube (side view of the air outlet).
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically illustrated with reference to the accompanying drawings. The proportion and the size that the drawing adopted and real proportional dimension, actual dimension data are based on following written description, and the drawing only plays the schematic effect, for clearer expression the technical scheme of the utility model.
< example 1>
As shown in fig. 2, a laryngeal mask device 100 for fitting a transnasal intubation of an endotracheal tube comprises a mask body 10 and an inflation tube 20.
The cover 10 has an annular airbag 11, a cover second part 12 and a cover third part. The mask body 10 is an integrated structure made of medical silica gel material or medical rubber material, and is soft in texture.
The annular cuff 11 has a side for facing the patient's trachea outlet and a back side facing away from the outlet side. The side wall of the annular airbag 11 is connected with a cylindrical inflation connector 111, the inflation connector 111 is connected with one end of an inflation tube 20 in a matching manner, and the other end of the inflation tube 20 is used for being connected with an inflating device.
The other end of the inflation tube 20 is connected with an adapter 21 used for being connected with an external inflation device in the embodiment, the inflation device connected externally through the adapter 21 inflates the inflation tube 20, so that the annular air bag 11 is inflated, when the inflatable annular air bag is used, the inflated annular air bag 11 is located at the throat of a patient, and the annular air bag can be limited at the throat under the action of the pressure of the throat of the patient and cannot move freely. In this embodiment, the external pump may be a conventional pump such as an inflator or a syringe.
The inflation tube 20 is made of medical plastic. Medical PVC plastic is preferably used. The outer diameter of the air tube 20 is 2.5mm to 3mm, and the length of the air tube 20 is 150mm to 220 mm. In the use condition, as shown in fig. 9, the air tube 20 extends from the oral cavity to the outside, and the air tube 20 is small, so that the oral area of the patient is not shielded, and the oral operation or the maxillofacial operation of the doctor is not affected.
The second cover part 12 forms a horn-shaped connecting cavity, the large-caliber end of the second cover part 12 is connected to the back side of the annular airbag 11, and the small-caliber end of the second cover part 12 is connected with the third cover part.
The third part of the housing comprises a snap section 131 and a port section 132. The total axial length of the third part of the shield (d as shown in figure 2) is from 14mm to 22 mm. In the use condition shown in fig. 9, the entire mask body will be located in the patient's throat and will not extend into the patient's mouth, and thus will not be obstructed in the patient's oral region.
As shown in FIG. 2, the snap segment 131 is coupled to the second cover portion 12. The inside of block section 131 is formed with the cuff block chamber, and cuff block chamber is used for the match block of the cuff after with endotracheal tube inflation and fixes. When viewed from the side, the transition of the joint of the cuff clamping cavity and the second part 12 of the mask body is gentle as shown in figure 2, and the lower end of the cuff clamping cavity is connected at a position close to the annular balloon 11; seen from the back side, the cuff clamping cavity is shown as being bulged at the left side and the right side in figure 4, the connection stability of the tracheal catheter cuff and the cuff clamping cavity can be ensured by the shape arrangement of the cuff clamping cavity, and unnecessary rotation and displacement in the oral cavity during use are avoided.
The axial length (c shown in figure 2) of the clamping cavity of the cuff is 12mm to 20 mm; the maximum radial cross-sectional diameter dimension of the cuff engaging cavity (b as shown in figure 4) is 15mm to 25 mm. During actual production and manufacturing, according to the specification of the matched tracheal catheter cuff, the specific size of the axial length and the diameter of the cuff clamping cavity is selected from the range, the volume of the cuff clamping cavity can be set to be slightly smaller than that of the fully inflated tracheal catheter cuff (the inflation degree is 100%), and the cuff of the tracheal catheter is extruded with the outer wall of the cuff clamping cavity after being fully inflated and can be firmly clamped in the cuff clamping cavity.
The port segment 132 is cylindrical and the inner diameter dimension (a shown in FIG. 4) of the port segment 132 is set to be less than or equal to 75% of the diameter dimension (b shown in FIG. 4) of the maximum radial cross-section of the cuff-engaging cavity. In this embodiment, a is set to 75% b, the cover body is made of soft material and has integral elasticity, and the port section 132 and the clamping section 131 are set to have such a size difference, so that on one hand, the cuff of the inflated endotracheal tube cannot enter or exit the port section 132 with such a size, and the cuff of the inflated endotracheal tube cannot easily slip off; on the other hand, the deflated cuff of the endotracheal tube can easily pass through the port segment 132 of such a size, ensuring that the cuff of the endotracheal tube can be easily removed or inserted in the deflated state.
As shown in fig. 3, the end face of the port section 132 is configured as an arc surface (shown as position B in fig. 3), the smooth arc surface can reduce the stress effect on the patient during the cover placing and taking process of the cover body, avoid damaging the mucous membrane, and the smooth port is favorable for smooth intubation of the endotracheal tube.
The thickness of the cover wall of the whole cover body 10 at different positions is set to be different. The wall thickness of the annular balloon 11 is set smaller than the wall thickness of the second cover part 12: the second part 12 of the cover body is designed to have larger thickness, so that the structural deformation performance is weaker and the structure is relatively stable; the annular air bag 11 has a small wall thickness, so that the inflation deformation performance is good and the inflation effect is good. The wall thickness of the third part of the mask body is set to be smaller than that of the second part 12 of the mask body, so that the deformation performance of the third part of the mask body is good, extrusion force can be better formed with the cuff of the inflated tracheal catheter, and the clamping is firm. Preferably, the wall thickness of the annular balloon 11 is between 0.2mm and 0.3 mm; the width of the edge of the annular balloon 11 (e shown in fig. 4) is 6mm to 15mm in size; the wall thickness of the second part 12 of the mask is 2mm to 2.4 mm; the wall thickness of the clamping section 131 is 1.8mm to 2.2 mm; the wall thickness of the port section 132 is 1.8mm to 2.2 mm.
In actual production manufacturing, the utility model discloses a with the cooperation endotracheal tube through nose laryngeal mask device 100 of intubate in the cover body 10 should set up to a series of different dimensions, according to the difference of physiological structure characteristics such as height weight of different age groups patient according to the size of a dimension setting series of specifications, the cover body of different specifications is in order to be applicable to different patients.
The laryngeal mask device 100 of the present embodiment, which is used in conjunction with a transnasal endotracheal tube, can assist the patient in the operation to breathe as an important component of an assisted ventilation system in conjunction with the transnasal endotracheal tube.
The auxiliary ventilation system comprises a laryngeal mask device 100 matched with a nasal intubation of an endotracheal tube, the endotracheal tube 200, an inflating device (not shown) and a breathing device (not shown).
The endotracheal tube 200 is a commercially available disposable tracheal tube with cuff, which may be a conventional tracheal tube, a reinforced steel wire tracheal tube or a special tracheal tube. This embodiment is illustrated using a conventional endotracheal tube with a cuff and an inflation bulb, as shown in fig. 6, the endotracheal tube 200 having a cuff 201 and an inflation bulb 204. Fig. 6 illustrates the cuff inflation of the endotracheal tube, in which (a) is the state before the cuff 201 is inflated, and (b) is the state after the cuff 201 is inflated.
The mating of the endotracheal tube 200 with the nasotracheal tube fitting laryngeal mask device 100 is shown in figures 7 and 8. The cuff 201 of the endotracheal tube 200 is fitted into the cuff engaging cavity of the mask body 10 after being inflated, so that the ventilation tube 202 of the endotracheal tube 200 communicates with the air outlet side of the mask body. The connector 21 at the tail end of the inflation tube of the laryngeal mask device 100 matched with the nasal intubation of the tracheal tube is connected with an inflation device. The end of the airway tube of endotracheal tube 200 is connected to a respiratory device (not shown) via a dedicated interface 203. The breathing apparatus is a ventilator or a respirator.
Fig. 9 is a schematic view of the use of the assisted ventilation system according to embodiment 1 of the present invention.
The operation of the assisted ventilation system of this embodiment is as follows:
first, a proper laryngeal mask device 100 is selected to fit the transnasal intubation of the endotracheal tube according to the height and weight of the patient. During operation, the cuff 201 of the endotracheal tube 200 is inserted into the cuff clamping cavity of the laryngeal mask device 100 and the cuff 201 of the endotracheal tube 200 is inflated, so that the cuff 201 of the endotracheal tube 200 is firmly clamped in the cuff clamping cavity, that is, the endotracheal tube 200 is tightly connected with the mask body 10. The connected endotracheal tube 200 and laryngeal mask device 100 are then placed through the patient's mouth so that the mask body 10 is positioned in the patient's pharyngeal cavity, and after the proper position is determined, the annular bladder 11 of the laryngeal mask device 100 is inflated so that the mask body 10 is secured in the patient's pharyngeal cavity (in the position shown in figure 9), with the outlet side of the mask body 10 corresponding to the patient's trachea. The cuff 201 of the endotracheal tube 200 is then deflated so that the laryngeal mask device 100 remains in the patient's pharyngeal cavity and the endotracheal tube 200 is withdrawn. Then, insert uninflated endotracheal tube 200 through patient's nasal cavity under direct vision, use the laryngoscope to aim at the most advanced of endotracheal tube 100 cuff block chamber for endotracheal tube 200's cuff 201 gets into cuff block intracavity, inflates endotracheal tube 200's cuff 201 again, makes cuff 201 firmly block in cuff block intracavity, reaches fixed and airtight effect. The breathing apparatus is then connected via the airway tube 202 of the endotracheal tube to control/assist breathing via the interface 203. Then, a corresponding surgical procedure may be performed within the patient's mouth.
< example 2>
In the present embodiment, the same structures as those of embodiment 1 are denoted by the same reference numerals in the drawings, and corresponding description thereof is omitted.
As shown in fig. 10 and 11, the present embodiment is different from embodiment 1 in that: in the laryngeal mask device 100' of the present embodiment, which is adapted to be inserted into an endotracheal tube via the nose, the inflation tube 20 is provided at the end of the other end thereof with the inflation balloon 22, so that an external inflation device is not required. In the present embodiment, the inflating device of the laryngeal mask device 100' for fitting the transnasal intubation of the endotracheal tube is the inflating ball 22, rather than an external inflating device, and the inflating ball is convenient to operate.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube, comprising: a cover body and an air charging pipe,
wherein the housing comprises an annular bladder, a housing second portion, and a housing third portion;
the annular cuff has a gas outlet side for facing a patient's trachea and a back side facing away from the gas outlet side; the side wall of the annular air bag is communicated with a cylindrical inflation connector, the inflation connector is matched and connected with one end of the inflation tube, and the other end of the inflation tube is used for being connected with an inflation device;
the second part of the cover body is in a horn-shaped cylinder shape, the large-caliber end of the second part of the cover body is connected to the back side of the annular air bag, and the small-caliber end of the second part of the cover body is connected with the third part of the cover body;
the third part of the mask body is provided with a clamping section, a cuff clamping cavity is formed inside the clamping section and is used for being matched, clamped and fixed with a cuff after the tracheal catheter is inflated.
2. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube as claimed in claim 1, wherein:
wherein the third part of the cover body is also provided with a port section which is cylindrical,
the inner diameter dimension of the port section is less than or equal to 75% of the diameter dimension of the largest radial cross-section of the cuff engaging cavity.
3. A laryngeal mask device according to claim 1 or 2 fitted with a transnasal intubation of an endotracheal tube, wherein:
wherein the axial length of the clamping cavity of the cuff is 12mm to 20 mm;
the diameter of the largest radial section of the cuff clamping cavity is 15mm to 25mm in size.
4. A laryngeal mask device according to claim 3 fitted with a transnasal intubation of an endotracheal tube, wherein:
wherein the third part of the housing has an overall axial length of from 14mm to 22 mm.
5. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube as claimed in claim 2, wherein:
wherein the wall thickness of the annular bladder is less than the wall thickness of the second portion of the housing;
the wall thickness of the third part of the cover is smaller than the wall thickness of the second part of the cover.
6. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube as claimed in claim 1, wherein:
wherein the outer diameter of the inflation tube is 2.5mm to 3 mm;
the length of the inflation tube is 150mm to 220 m.
7. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube as claimed in claim 1, wherein:
wherein, the cover body is medical silica gel or medical rubber.
8. A laryngeal mask device for fitting a transnasal intubation of an endotracheal tube as claimed in claim 1, wherein:
the end face of the port section is a circular arc face.
9. An assisted ventilation system, comprising: a laryngeal mask device, a tracheal tube, an inflation device and a breathing device,
wherein the laryngeal mask device is the laryngeal mask device matched with the transnasal intubation of the tracheal catheter, disclosed by the claim 1-8;
the inflation tube of the laryngeal mask device is connected with the inflation device;
the cuff of the tracheal catheter is inflated and then is installed in a cuff clamping cavity of the laryngeal mask device in a matching mode, so that the ventilation pipeline of the tracheal catheter is communicated with the air outlet side of the mask body;
the ventilation pipeline of the tracheal catheter is connected with the breathing device.
10. An assisted-ventilation system as claimed in claim 9, wherein:
wherein the breathing apparatus is a ventilator or a respirator.
CN202021874534.4U 2020-09-01 2020-09-01 Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system Active CN212395567U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021874534.4U CN212395567U (en) 2020-09-01 2020-09-01 Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021874534.4U CN212395567U (en) 2020-09-01 2020-09-01 Laryngeal mask device matched with endotracheal tube for transnasal intubation and auxiliary ventilation system

Publications (1)

Publication Number Publication Date
CN212395567U true CN212395567U (en) 2021-01-26

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