CN117138188A - Bite-block device for tracheal cannula - Google Patents

Abstract

The bite-block device for tracheal cannula provided by the embodiment of the application comprises a bite-block body, wherein the bite-block body comprises: a bite block straight section comprising a bite section configured for penetration into a patient's mouth, at least an outer surface of the bite section being a soft surface; and an abutment portion connected to an outer side of the bite block straight cylinder portion and extending in a lateral direction of the bite block straight cylinder portion, the abutment portion being configured for abutting contact with an outer surface of a patient's tooth. The bite-block device for the tracheal cannula can effectively reduce the risk of tooth abrasion and falling off when a patient uses the bite-block device.

Description

Bite-block device for tracheal cannula

Technical Field

The application relates to the technical field of medical equipment, in particular to a bite-block device for a tracheal cannula.

Background

The tracheal intubation is a technology for placing a special endotracheal tube into the trachea through the glottis, and usually after the success of the intubation is confirmed, a bite block is placed between the upper and lower incisors of a patient so as to prevent the abrasion and even the blocking of the endotracheal tube caused by the unconscious occlusion of the patient, and the patient cannot exchange gas to induce life threat.

In the related art, in the operation of a patient, a bite block is fixed by an adhesive tape for a bite block and a tracheal catheter, and then fixed to the face of the patient, thereby supporting the patient. When the teeth of a patient are loose and rare, the operation needs to be stimulated by the exercise induced potential to cause the unconscious occlusion action of the patient, and the teeth of the patient are easy to become loose, fall off, bleed and other complications under the action of abrasion and collision.

Disclosure of Invention

In view of the above problems, the present application has been made to solve the above problems or to at least partially solve the above problems with a bite block device for an endotracheal tube.

The embodiment of the application provides a bite-block device for an tracheal cannula, which comprises a bite-block body, wherein the bite-block body comprises: a bite block body, the bite block body comprising:

a bite block straight section comprising a bite section configured for penetration into a patient's mouth, at least an outer surface of the bite section being a soft surface;

and an abutment portion connected to an outer side of the bite block straight cylinder portion and extending in a lateral direction of the bite block straight cylinder portion, the abutment portion being configured for abutting contact with an outer surface of a patient's tooth.

In some embodiments, the abutment divides the bite block straight barrel into the bite section and an extension section configured for extension out of a patient's mouth.

In some embodiments, the dental pad further comprises an elastic bandage, wherein two ends of the elastic bandage are respectively connected with two sides of the dental pad body.

In some embodiments, the propping part is in an arc shape protruding along the direction away from the occlusion section, and two ends of the elastic bandage are respectively connected with the left side and the right side of the propping part.

In some embodiments, the left and right sides of the propping part are provided with connecting through holes, and two ends of the elastic bandage are respectively connected with the propping part by bypassing the connecting through holes.

In some embodiments, the bite section includes an inner hard layer and an outer soft layer that wraps around the hard layer, the outer soft layer configured for occlusal contact with the patient's teeth.

In some embodiments, the abutment includes a first surface facing the bite section and a second surface disposed opposite the first surface, the first surface of the abutment being a soft surface.

In some embodiments, the abutment portion comprises a hard layer and a soft layer, one side of the soft layer being connected to the hard layer, the other side surface of the soft layer forming the first surface;

or, the abutting part comprises a hard layer and a soft layer, the soft layer is coated on the outer side of the inner hard layer, and the soft layer forms the first surface towards one side surface of the engagement section.

In some embodiments, the outer sidewall of the bite-block straight barrel portion includes an arcuate groove extending along a length direction of the bite-block straight barrel portion, and the arcuate groove is recessed inward along a lateral direction of the bite-block straight barrel portion, a groove wall of the arcuate groove being for conforming contact with an endotracheal tube.

In some embodiments, a relief hole is formed in the abutment portion and near the arc-shaped groove of the bite-block straight barrel portion, and the relief hole is communicated with the arc-shaped groove to form an insertion space for insertion of the air supply pipe conduit.

In some embodiments, the bite block chimney has a through hole extending along the bite block chimney.

In some embodiments, a plurality of elastic fixing portions are circumferentially spaced on an inner sidewall of the escape hole, and the plurality of elastic fixing portions can be expanded outward or contracted inward in a radial direction of the escape hole.

In some embodiments, the elastic fixing part is an elastic buckle obliquely arranged inwards along the radial direction from the inner side wall of the avoidance hole, and a plurality of elastic buckles form conical claws;

and/or the elastic fixing part comprises an elastic air bag or an elastic rubber block;

and/or, the elastic fixing part comprises a spring pin.

In some embodiments, a pressure sensing module is disposed on the inner side of the soft surface of the engagement section, and is electrically connected with an alarm module, and the pressure sensing module is configured to trigger the alarm module to send out a preset alarm signal when the applied pressure reaches a preset value.

According to the bite block device for the tracheal cannula, provided by the embodiment of the application, the bite section of the bite block body of the bite block device is set to be the soft surface, and the soft surface of the bite section is in biting contact with teeth of a patient, so that the risk of falling and damaging caused by collision and abrasion of the bite block and the teeth of the patient can be effectively reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a bite block body according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a bite block device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a bite block device according to an embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of a straight barrel portion of a bite block according to an embodiment of the present application;

fig. 5 is a schematic view illustrating a state in which the bite block device according to the embodiment of the present application is engaged with an endotracheal tube when in use;

FIG. 6 is a schematic view showing a bite block device according to another embodiment of the present application engaged with an endotracheal tube during use;

fig. 7 is an electrical schematic diagram of a bite-block device according to an embodiment of the present application.

Reference numerals:

100-bite-block body; 10-tooth pad straight barrel part; 20-abutting part;

11-bite segment; 12-an extension; 13-arc-shaped grooves;

21-connecting through holes; 22-avoiding holes; 20 a-a first surface;

20 b-a second surface; 201-a first abutment portion; 202-a second abutment portion;

30-an elastic bandage; 111-an inner hard layer; 112-an outer soft layer;

an O-penetration hole; 40-elastic fixing part; 200-tracheal tube;

300-a pressure sensing module; 400-alarm module.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

Furthermore, the term "coupled" as used herein includes any direct or indirect connection. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices. The description hereinafter sets forth a preferred embodiment for practicing the application, but is not intended to limit the scope of the application, as the description is given for the purpose of illustrating the general principles of the application. The scope of the application is defined by the appended claims.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 1 is a schematic structural diagram of a bite block body according to an embodiment of the present application; fig. 4 is a schematic cross-sectional view of a bite-block straight barrel portion of a bite-block body according to an embodiment of the present application. Referring to fig. 1 and 4, a bite block device for an endotracheal tube according to an embodiment of the present application includes a bite block body 100, the bite block body 100 including: a bite block straight section 10 and a butt section 20.

The bite block straight cylinder portion 10 has a straight cylinder shape for extending into the oral cavity of a patient and for biting the teeth of the patient so as to increase the interval between the upper teeth and the lower teeth of the patient and avoid the patient from unintentionally biting the catheter extending into the trachea from the oral cavity.

The abutment 20 is connected to the outside of the bite block straight cylinder 10, and the abutment 20 extends in the lateral direction of the bite block straight cylinder 10, the abutment 20 being configured for abutting contact with the outer surface of a patient's tooth. As shown in fig. 1, the abutment portion 20 may be substantially perpendicular to the bite block straight cylinder portion 10, and since the abutment portion 20 is used to make abutment contact with the outer surfaces of the teeth of the patient, the bite block body 100 may be prevented from falling into the oral cavity of the patient, and the reliability of the bite block body 100 in maintaining the upper teeth and the lower teeth at the preset interval is improved.

In particular, bite block straight barrel 10 may include a bite block 11, bite block 11 configured for penetration into a patient's mouth, at least an outer surface of bite block 11 being a soft surface. The inventor has found through creative work that, during use of the bite block device, because the bite block 11 is in contact with the teeth of the patient, the teeth of the patient may repeatedly abrade the bite block 11 in the case of blurred consciousness, and if the bite block 11 is hard, the bite block 11 may in turn abrade the teeth of the patient, even drop the teeth of the patient. In particular, for elderly people whose teeth themselves are more remarkably loosened, the risk of their teeth being damaged is higher. The application thus creatively designs at least the outer surface of the bite section 11 as a soft surface, which on the one hand can increase the comfort of the patient's bite and on the other hand can reduce the risk of tooth fall or wear.

In some embodiments, as shown in fig. 4, the bite section 11 may include an inner hard layer 111 and an outer soft layer 112, the outer soft layer 112 coating the outer surface of the inner hard layer 111, the outer soft layer 112 being configured for occlusal contact with the patient's teeth. The outer soft layer 112 may be made of silica gel or rubber, and even in some embodiments, the outer soft layer 112 may be made of soft gauze or sponge, and the embodiments of the present application are not limited in particular. The whole inner hard layer 111 can be formed into a hard layer by hard plastic or hard steel wires/steel plates and the like so as not to influence the supporting function of the whole biting section 11, and the risk of biting deformation of the tracheal catheter is not easy to occur when a patient bites.

In some embodiments, the abutment 20 can include a first surface 20a facing the bite section 11 and a second surface 20b facing away from the first surface 20a, the first surface 20a of the abutment 20 being a soft surface. In other embodiments, the abutment 20 comprises a hard layer (not shown) and a soft layer (not shown), one side of the soft layer being connected to the hard layer, the other side surface of the soft layer forming the first surface 20a; alternatively, the abutment 20 includes a hard layer and a soft layer, the soft layer is coated on the outer side of the hard layer, and the soft layer forms the first surface 20a towards one side surface of the engagement section 11.

In other embodiments, the shape of the abutment 20 is not limited to that shown in the drawings, for example, the abutment 20 may be in a form of a dental mouthpiece, which can be more firmly attached to the teeth of the patient, and the whole portion of the abutment 20 contacting the teeth of the patient may be made of flexible materials, so that the comfort and reliability of wearing by the patient can be further improved. Those skilled in the art may specifically devise the embodiments of the present application and are not limited.

The bite block device for the tracheal cannula provided by the embodiment of the application comprises a bite block body 100, wherein the bite block body 100 comprises a bite block straight cylinder part 10 and a propping part 20, the bite block straight cylinder part 10 comprises a biting section 11, the biting section 11 is configured to extend into the oral cavity of a patient, and at least the outer surface of the biting section 11 is a soft surface; the abutment 20 is connected to the outside of the bite block straight cylinder 10, and the abutment 20 extends in the lateral direction of the bite block straight cylinder 10, the abutment 20 being configured for abutting contact with the outer surface of a patient's tooth. By setting the bite block 11 of the bite block body 100 of the bite block device to be a soft surface, the risk of falling off damage caused by collision and abrasion of the bite block and the teeth of the patient can be effectively reduced by the bite contact between the soft surface of the bite block 11 and the teeth of the patient.

As shown in fig. 1, the abutment portion 20 may divide the bite block barrel portion 10 into the bite block 11 and extension block 12 described above, the extension block 12 being configured for extension out of the patient's mouth. Thus, the abutment portion 20 can be brought to abut against the outside of the patient's teeth, and the extension 12 can be easily grasped by the operator to place the bite block cartridge 10 in the patient's mouth. Also, the extension 12 may be manipulated by an operator to secure the endotracheal tube 200 to the extension 12 by adhesive tape or the like, or the endotracheal tube 200 to the extension 12 by other securing structures.

In some embodiments, the structural composition of the protruding section 12 may also be the same as that of the engaging section 11, and preferably, the material of the entire bite-block straight barrel portion 10 may be the same, that is, the protruding section 12 may also include an inner hard layer and an outer soft layer, so as to facilitate rapid integral formation of the entire bite-block body 100, reduce processing costs, and also ensure integrity and aesthetic appearance.

Of course, more preferably, the structural compositions of the whole dental pad straight barrel portion 10 and the abutment portion 20 can be the same, and in the forming process, the dental pad straight barrel portion and the abutment portion can be directly formed by a set of injection mold, so that the forming cost is further reduced, the forming process is simplified, and further the forming efficiency is also improved.

In addition, in some alternative embodiments, the whole occlusal segment 11 may be made of a soft material, which may have a certain supporting capability, and the softness of the soft material may be slightly harder than that of the common endotracheal tube 200, so those skilled in the art may choose the soft material according to the actual situation, and the embodiment of the present application is not limited in particular.

In the related art, the conventional operation manner when fixing the entire bite block body 100 to the face of a patient is: the teeth are fixed together with the tracheal catheter by using adhesive tape, and then are adhered and fixed on the face of a patient by using binding tape and adhesive tape, so as to play a supporting role. However, in this manner, particularly when the patient is in prone position, side position, etc. in the operation, the fixing position of the bite block body 100 is easily dislocated, even the whole bite block body 100 is dropped off, and thus there is a risk in the operation.

Thus, to solve or improve the above technical problems, the cushion body 100 according to some embodiments of the present application may further be connected with an elastic bandage 30. Fig. 2 is a schematic structural diagram of a bite block device according to an embodiment of the present application; FIG. 3 is a schematic diagram of a bite block device according to an embodiment of the present application; as shown in fig. 2 and 3, both ends of the elastic bandage 30 are connected to both sides of the bite block body 100, respectively. The elastic bandage 30 is a band which can stretch along the length direction of the band, so that after the bite-block body 100 is plugged into the oral cavity of a patient in the use process of the patient, the elastic bandage 30 is directly sleeved on the head of the patient, and the operation is convenient and quick. In addition, since the elastic bandage 30 has elasticity, the cushion body 100 can be reliably maintained at the preset supporting position by means of the elasticity, and the risk of falling off the cushion can be effectively reduced.

The abutment 20 may be curved to project away from the engagement section 11, and the two ends of the elastic bandage 30 are connected to the left and right sides of the abutment 20, respectively. The curvature of the abutment 20 can be determined by the curvature of the gums of a large portion of the patient so that the abutment 20 fits as closely as possible to the gums of a large portion of the patient, thereby further enabling the bite block body 100 to be more firmly secured to the patient's mouth, further reducing intraoperative risks.

As shown in fig. 1, the direction in which the entire bite block device extends into the oral cavity of the patient is the "extending direction" shown in the drawing, and the left and right sides, the upper and lower sides, of the abutment portion 20 are defined in the state of extending into the oral cavity of the patient.

The shape of the abutment 20 is not limited to that shown in the drawings, and may be any shape that can abut against the outer surface of the teeth of the patient. The abutment 20 is symmetrical with respect to the bite-block straight cylinder 10, and the abutment 20 comprises a first abutment 201 and a second abutment 202 disposed opposite to each other, the first abutment 201 being adapted to be in abutment contact with the outer surface of the patient's upper teeth, and the second abutment 202 being adapted to be in abutment contact with the outer surface of the patient's lower teeth. The first abutment portion 201 and the second abutment portion 202 may have the same structure and shape, so as to ensure the balance of forces on the upper and lower teeth of the patient as much as possible, and reduce the processing difficulty.

It should be noted that the placement position of the elastic bandage 30 is not limited to the illustrated position, and in other embodiments, the elastic bandage 30 may be connected to other positions of the dental pad body 100, so long as the elastic bandage can function to connect to the dental pad body 100, and embodiments of the present application are not limited.

The left and right sides of the abutment 20 may be provided with connection through holes 21, and both ends of the elastic bandage 30 are connected with the abutment 20 by bypassing the connection through holes 21, respectively. For example, the elastic bandage 30 may be flat, and the flat elastic bandage 30 has better comfort for the patient after wearing, and better fit with the head and face of the patient, which is beneficial to improving the stability of the bandage after wearing. Correspondingly, the connecting through hole 21 may be elongated to provide enough space for the elastic bandage 30 to pass through, and the width of the connecting through hole 21 may be smaller, so that the elastic bandage 30 is not easy to move or be out of position in the connecting through hole 21 while the elastic bandage 30 can pass through. Of course, in other embodiments, the shape of the elastic bandage 30 may be other shapes, for example, the cross section of the elastic bandage 30 is circular, and the shape of the corresponding connecting hole 21 may be circular.

Further, in order to enable the elastic bandage 30 to adapt to the head circumference of different patients (especially, adapt to the head circumference of children and adults), the elastic bandage 30 may be detachably connected with the dental pad body 100, and medical staff may install and connect the elastic bandages 30 with different lengths according to the head circumference of the patients so as to better fit the head circumference of the patients.

In other embodiments, the elastic bandage 30 may include a first strap portion and a second strap portion, which may be removably connected and may have different connection apertures, thereby allowing the length of the entire elastic bandage 30 to be adjusted. Alternatively, the elastic bandage 30 may be detachably connected to the abutment 20 and may have different connecting hole sites, whereby different length adjustments of the elastic bandage 30 may also be achieved. Thereby, the cost of the entire bite block device can be advantageously saved.

Referring to fig. 1 to 2, the outer sidewall of the bite-block straight barrel 10 may include an arc-shaped groove 13, the arc-shaped groove 13 may extend along the length direction of the bite-block straight barrel 10 and may extend along the length direction of the entire bite-block straight barrel 10, the arc-shaped groove 13 is recessed inward along the transverse direction of the bite-block straight barrel 10, and the groove wall of the arc-shaped groove 13 is used for contacting with the tracheal catheter 200. The inward recess means a recess toward the central axis of the bite block straight tube portion 10. Because the tracheal catheter 200 is basically a circular tube, and the outer surface of the tracheal catheter 200 is arc-shaped, in order that the tracheal catheter 200 can be well attached to and fixed on the bite block body 100, the outer surface of the bite block straight barrel 10 is designed to be arc-shaped, and the curvature of the arc-shaped groove 13 can be close to the curvature of the outer side wall of the tracheal catheter 200 as much as possible, so that the outer surface of the tracheal catheter 200 can be in contact with the bite block straight barrel 10 as much as possible, the contact area of the tracheal catheter 200 and the bite block body 100 is enlarged, and the stability of the tracheal catheter 200 after being fixed on the bite block body 100 is further improved.

Fig. 5 is a schematic view illustrating a state in which the bite block device according to the embodiment of the present application is engaged with an endotracheal tube when in use; as shown in fig. 5, a relief hole 22 may be provided on the abutment portion 20 near the arc-shaped groove 13 of the bite block straight cylinder portion 10, and the relief hole 22 may communicate with the arc-shaped groove 13 to form an insertion space into which the gas supply pipe guide 200 is inserted.

In the exemplary embodiment shown in fig. 5, the shape of the avoidance hole 22 may be approximately circular, and the aperture of the avoidance hole 22 may be at least slightly larger than the outer diameter of the endotracheal tube, so that the endotracheal tube 200 can be smoothly inserted into the avoidance hole 22, and is not easy to shake in the avoidance hole 22, which is beneficial to further improving the stability of the endotracheal tube 200 after being fixed. In other embodiments, the shape of the relief hole 22 is not limited to a circular shape, and may be any shape such as a rectangle, a trapezoid, a parallelogram, a hexagon, etc., as long as a relief space through which the gas supply pipe conduit passes can be provided. In addition, the aperture of the avoidance hole 22 may be as large as possible, so that the avoidance hole 22 may be used for passing through tracheal tubes with different diameters and sizes, so as to improve the versatility of the bite block device.

Of course, it will be appreciated that in other embodiments, the bite block straight barrel portion 10 may not be configured with the arcuate recess 13, but the evacuation aperture 22 may be provided only at the abutment portion 30, and the entire endotracheal tube 200 may be inserted directly into the evacuation aperture 22, in which case the exterior side wall of the endotracheal tube 200 is in line contact with the exterior side wall (planar surface) of the bite block straight barrel portion 10. However, in this state, the reliability of contact between the endotracheal tube 200 and the bite block straight tube portion 10 is slightly low.

Still further, the relief holes 22 and the arc-shaped grooves 13 may include two, and the two relief holes 22 and/or the two arc-shaped grooves 13 may be symmetrically disposed with respect to the bite block straight portion 10, and an operator may selectively fix the endotracheal tube 200 to either side of the bite block straight portion 10 as desired.

In the bite block device provided in the embodiment of the present application, further, the bite block straight cylinder portion 10 may have a through hole O extending along the bite block straight cylinder portion 10. Through designing the through hole O, can appear bleeding or under the more circumstances of sputum in patient's oral cavity, medical personnel can stretch into in the through hole O with suction means (sputum suction tube), then absorb out with blood and the sputum in the patient's oral cavity through suction means, be favorable to improving the cleanliness in the patient's oral cavity, and then also improve patient's comfort level, even, can reduce patient's risk that chokes the trachea because of the excessive sputum in the art.

As shown in fig. 1 to 4, the shape of the through hole O is not limited to the circular shape shown in the drawings, and in other embodiments, the shape of the through hole O may be any shape such as square, hexagonal, or elliptical, as long as the suction device can be inserted into the through hole O to suck away the sputum in the oral cavity of the patient, and the embodiment of the present application is not limited.

In the related art, in order to fix the endotracheal tube 200 to the bite block body 100, the endotracheal tube 200 is usually bound to the bite block body 100 by an adhesive tape or a binding tape, and in order to achieve the reliability of the binding, the operation method of the medical staff is required to be high, for example, the endotracheal tube 200 needs to be bound to the straight tube portion 10 of the bite block body 100 by using the binding tape in a cross-shaped binding manner according to a certain operation method, and the operation is very complicated.

In order to solve the above-mentioned specific technical problems, another embodiment of the present application further provides a fixing method of the tracheal catheter 200.

Fig. 6 is a schematic view illustrating a bite block device according to another embodiment of the present application in use mated with an endotracheal tube. Referring to fig. 6, a plurality of elastic fixing portions 221 are circumferentially spaced on an inner sidewall of the escape hole 22, and the plurality of elastic fixing portions 221 can be contracted inward or expanded outward in a radial direction of the escape hole 22. Specifically, the elastic fixing portion 221 may be contracted inward in the radial direction of the escape hole 22 or expanded outward in the radial direction by an external force.

In the embodiment shown in fig. 6, the elastic fixing portion 221 may include an elastic balloon or an elastic rubber block. The elastic fixing portion 221 may have a substantially semi-elliptical shape, and the elliptical elastic fixing portion 221 is easily deformed, and thus, may be compressed to retract in a radially outward direction when the elastic fixing portion 221 is subjected to a radially outward external force.

In other exemplary embodiments, the elastic fixing portion 221 may include elastic snaps (not shown) disposed obliquely inward in a radial direction from an inner sidewall of the escape hole 22, and a plurality of the elastic snaps may enclose the jaws forming a cone shape. The elastic buckle can be made of an elastic plastic piece, and the elastic plastic piece can be propped against and expanded after the tracheal catheter 200 is inserted due to the property that the elastic plastic piece is easy to deform by plastic, and can be adapted to tracheal catheters 200 with different outer diameters. Of course, in other embodiments, the elastic buckle may be made of spring steel, and the present application is not limited in particular.

Even further, in other embodiments, the elastic fixing portion 221 may include a spring pin, where the spring pin is a component formed by a sleeve, a spring and a propping head, the sleeve may be fixed in the bite block straight barrel portion 10, the spring extends into the sleeve, one end of the spring is connected to the sleeve, the other end of the spring is fixedly connected to the propping head, and the propping head is exposed from the inner side wall of the avoidance hole 22 and may retract into the sleeve under the action of an external force. The shape of the abutment head can be any shape such as column, sphere, block and the like, and the embodiment of the application is not limited.

It should be noted that, in order to make the spring pin capable of fixing the endotracheal tube 200 relatively stably, the stiffness of the spring pin may be slightly larger, so that the pushing force of the spring pin against the sidewall of the endotracheal tube 200 may be larger, so as to improve the stability of the endotracheal tube 200 after being fixed.

From the above, in the practical application process, the endotracheal tube 200 is inserted into the space surrounded by the plurality of elastic fixing portions 221, it can be understood that the endotracheal tubes 200 with different diameters are inserted with different pushing forces to the elastic fixing portions 221, and the elastic fixing portions 221 can be deformed continuously, so that the endotracheal tubes 200 with different outer diameters can be adaptively contracted and deformed, and can be pushed against the outer side walls of the endotracheal tubes 200.

In a specific design, the aperture surrounded by the plurality of elastic fixing portions 221 in the natural state (when the endotracheal tube 200 is not inserted) may be smaller, preferably smaller than the outer diameter of the smallest endotracheal tube 200, whereby the elastic fixing portions 221 can be compressed outward even when the smallest endotracheal tube 200 is inserted into the avoidance hole 22, so that the elastic fixing portions 221 can be in turn abutted against the endotracheal tube 200, so that the endotracheal tube 200 can be firmly fixed.

From the above, by providing the elastic fixing portion 221 at the side wall of the avoiding hole 22, not only can the insertion of the endotracheal tube 200 with different outer diameter sizes be matched, but also the fixing stability of the endotracheal tube 200 can be improved. In addition, during specific operation, an operator can only directly insert the tracheal catheter 200 into the insertion space surrounded by the elastic fixing parts 221, and the tracheal catheter 200 is not required to be bound on the bite-block straight barrel part 10 by adopting a binding band like the prior art, so that the operation convenience is greatly improved, and the operation requirement on medical staff is reduced.

It should be noted that, the plurality of elastic fixing portions 221 may be uniformly arranged along the circumferential direction of the avoiding hole 22 as much as possible, and the structural form of the plurality of elastic fixing portions 221 is also the same as much as possible, so that the force applied to each portion on the outer peripheral wall is as uniform as possible when the tracheal catheter 200 is fixed, thereby indirectly improving the stability of fixing the tracheal catheter 200 to the bite block body 100.

When a patient bites uncontrollably due to pain after waking up after wearing the bite-block device, medical staff is required to find in time in order to avoid danger.

Fig. 7 is an electrical schematic diagram of a bite-block device according to an embodiment of the present application. As shown in fig. 7, a pressure sensing module 300 is disposed on the inner side of the soft surface of the bite section 11 of the bite-block device according to the embodiment of the present application, the pressure sensing module 300 is electrically connected to an alarm module 400, and the pressure sensing module 300 is configured to trigger the alarm module 400 to emit a preset alarm signal when the pressure applied to the bite-block device reaches a preset value. When the force of the patient's bite reaches a preset value, the pressure sensing module 300 may be triggered, and the pressure sensing module 300 transmits the pressure signal to the alarm module 400, so that the alarm module 400 sends out a preset alarm signal, where the preset alarm signal may include, but is not limited to: beeping sounds, voice broadcast sounds, and the like. Therefore, medical staff can find the biting action of the patient in time conveniently to remind the patient, and the use risk can be reduced to a certain extent.

It should be noted that, without contradiction, a person skilled in the art can combine and combine the features of the different embodiments or examples and the different embodiments or examples described in the present specification.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (11)

1. A bite-block device for tracheal cannula, comprising a bite-block body comprising:

a bite block straight section comprising a bite section configured for penetration into a patient's mouth, at least an outer surface of the bite section being a soft surface;

and an abutment portion connected to an outer side of the bite block straight cylinder portion and extending in a lateral direction of the bite block straight cylinder portion, the abutment portion being configured for abutting contact with an outer surface of a patient's tooth.

2. The bite block device for tracheal cannula of claim 1, further comprising an elastic bandage having two ends connected to two sides of the bite block body, respectively.

3. The bite block device for tracheal cannula of claim 2, wherein said abutment portion is arcuate in shape projecting away from said bite block, and wherein said elastic bandage has two ends connected to left and right sides of said abutment portion, respectively.

4. A bite block device for a tracheal cannula according to claim 3, wherein the left and right sides of said abutment portion are provided with connection through holes, and both ends of said elastic bandage are connected to said abutment portion by bypassing said connection through holes, respectively.

5. The bite block device for tracheal cannula of claim 1, wherein said abutment portion comprises a first surface facing said bite block and a second surface disposed opposite said first surface, said first surface of said abutment portion being a soft surface.

6. The bite block device for tracheal cannula of claim 5, wherein said abutment portion comprises a hard layer and a soft layer, one side of said soft layer being connected to said hard layer, the other side surface of said soft layer forming said first surface;

or, the abutting part comprises a hard layer and a soft layer, the soft layer is coated on the outer side of the hard layer, and the soft layer forms the first surface towards one side surface of the occlusion section.

7. The bite block device for an endotracheal tube according to claim 1, wherein the outer side wall of the bite block straight tube portion comprises an arc-shaped groove extending in a length direction of the bite block straight tube portion, and the arc-shaped groove is recessed inward in a lateral direction of the bite block straight tube portion, and a groove wall of the arc-shaped groove is for fitting contact with an endotracheal tube.

8. The bite block device for tracheal cannula of claim 7, wherein a relief hole is provided in said abutment portion at an arcuate recess adjacent to said bite block straight section, said relief hole communicating with said arcuate recess to form an insertion space for insertion of a gas supply tube catheter.

9. The bite block device for tracheal cannula of claim 8,

a plurality of elastic fixing parts are arranged on the inner side wall of the avoidance hole at intervals along the circumferential direction, and the elastic fixing parts can expand outwards or contract inwards along the radial direction of the avoidance hole.

10. The bite block device for tracheal cannula of claim 9, wherein said elastic fixation portion is an elastic clasp disposed obliquely radially inward from an inside wall of said escape aperture, a plurality of said elastic clasps forming tapered jaws;

and/or the elastic fixing part comprises an elastic air bag or an elastic rubber block;

and/or, the elastic fixing part comprises a spring pin.

11. The bite block device for tracheal cannula of claim 1, wherein the abutment portion separates the bite block straight section into the bite section and an extension section configured for extension out of a patient's mouth; and/or the number of the groups of groups,

the bite section includes an inner hard layer and an outer soft layer, the outer soft layer coating the inner hard layer outer surface, the outer soft layer configured for occlusal contact with a patient's teeth; and/or the number of the groups of groups,

the bite block straight cylinder part is provided with a through hole extending along the bite block straight cylinder part; and/or the number of the groups of groups,

the inner side of the soft surface of the occlusion section is provided with a pressure sensing module, the pressure sensing module is electrically connected with an alarm module, and the pressure sensing module is configured to trigger the alarm module to send out a preset alarm signal when the applied pressure reaches a preset value.