CN221905201U - Bite-block for fixing tracheal catheter in general anesthesia operation - Google Patents

Abstract

The utility model provides a bite block for fixing an endotracheal tube in general anesthesia operation, comprising: the inner seat body is provided with an inner column body, an outer column body and a first protecting wing, the inner column body and the outer column body are longitudinally distributed and fixedly connected together, the first protecting wing is connected to the outer wall of the inner column body, and the inner seat body is also provided with a first channel penetrating through the inner column body and the outer column body; the outer seat body is provided with a cover body and second protective wings, the second protective wings are connected to the outer wall of the cover body, and the inner seat body is also provided with a second channel penetrating through the cover body; the lid can cup joint outside the outer cylinder and link together through rigid coupling structure to make first passageway and second passageway be linked together with the air supply pipe extend to the mouth through second passageway and first passageway, and be provided with the interval between first flap and the second flap, solved when carrying out partial maxillofacial surgery under general anesthesia, after accomplishing tracheal cannula operation, be difficult to carry out the technical problem of reliably fixing to tracheal pipe.

Description

Bite-block for fixing tracheal catheter in general anesthesia operation

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a bite block for fixing an endotracheal tube in general anesthesia operation.

Background

When the general anesthesia is used for surgery, the spontaneous respiratory function of a patient (such as muscle relaxant, opioid and the like) is temporarily lost after the anesthesia medicament is used, an artificial airway is required to be established to assist the patient in mechanical ventilation, and the tracheal intubation is the most widely used ventilation tool at present, so that the general anesthesia ventilation device has the advantages of definite ventilation effect, convenience in respiratory management, reduction of the risk of backflow aspiration and the like. In general, after the tracheal intubation is completed, the tracheal catheter needs to be fixed, so that the position of the tracheal catheter is prevented from being changed (i.e. going deep or going out), and the maintenance of the position of the tracheal catheter is an important link for anesthesia management in operation; the tracheal tube is pulled out, so that the patient cannot perform mechanical ventilation, further serious hypoxia and even death of the patient are caused, and meanwhile, if the tracheal tube is pulled out of the glottis in the inflated state of the cuff, the patient can be caused to have serious complications such as arytenoid cartilage dislocation and the like. On the contrary, if the tracheal catheter goes deep in the operation, the front end of the tracheal catheter enters the bronchus of the patient, and at this time, single-lung ventilation can occur, so that the ventilation effect in the operation cannot be ensured, complications such as post-operation lung tension and the like can be caused, and the prognosis of the patient is seriously influenced.

Therefore, the tracheal catheter needs to be fixed by using the bite block, so that the position of the tracheal catheter is kept unchanged; meanwhile, another main function of the bite block is to prevent the patient from stopping the anesthetic during the operation, particularly at the end of the operation, and the patient is about to wake up, and the patient's incisors are hard to bite due to pain or incomplete wake up, so that the lumen of the tracheal catheter is closed, ventilation cannot be performed, and negative pressure pulmonary edema can be caused by forced inhalation of the patient. Therefore, after general anesthesia trachea cannula, the use of the dental pad to fix the trachea cannula has important clinical significance, and the main current trachea cannula fixing modes mainly comprise the following two modes:

(1) The adhesive tape is fixed by a splayed method, two longer adhesive tapes are used, one of the two longer adhesive tapes is firstly fixed on one cheek of a patient, and then the other cheek of the two longer adhesive tapes is fixed on the other cheek after the tracheal catheter is wound for a plurality of turns; the other adhesive tape is the same.

The adhesive tape fixing method is simple and economical to use; there are a number of drawbacks: firstly, the fixing effect is not firm, because the adhesive tape has limited pasting effect; along with the extension of operation time, or the outflow of patient's oral endocrine in prone position operation, and after the disinfection iodophor contact adhesive tape of oral and maxillofacial operation, will weaken its fixed effect, the position change of tracheal catheter will very take place very easily this moment, the extra burden that brings for the management of the intraoperative air flue of anesthesiologist.

(2) The bite-block fixing method, that is, the traditional bite-block used at present is used for fixing the tracheal catheter, and the fixing mode has the advantage of relatively definite fixing effect. However, when the conventional bite block is used for fixation, only the wing portions protruding on one side (opposite to the inner and outer sides of the incisors) cannot prevent the bi-directional displacement of the endotracheal tube. Meanwhile, as the dental pad and the tracheal catheter still need to be combined and fixed by using the adhesive tape, the problem of the adhesive tape fixing method still exists, namely that the tracheal catheter cannot be exactly prevented from being displaced in the maxillofacial surgery or the lateral/prone position surgery, and meanwhile, the disinfection and the operation of partial maxillofacial/plastic surgery are affected.

In summary, when a partial maxillofacial surgery is performed under general anesthesia, it is difficult to secure reliable fixation of an endotracheal tube after the completion of an endotracheal tube operation.

Disclosure of utility model

The utility model aims to provide a bite block for fixing an endotracheal tube in general anesthesia operation, which aims to solve the technical problem that the endotracheal tube is difficult to reliably fix after the operation of trachea cannula is finished when partial maxillofacial surgery is performed under general anesthesia.

The above object of the present utility model can be achieved by the following technical solutions:

The utility model provides a bite block for fixing an endotracheal tube in general anesthesia operation, comprising:

An inner seat body, an outer seat body and a fixedly connecting structure,

The inner seat body is provided with an inner column body, an outer column body and a first protection wing, wherein the inner column body and the outer column body are longitudinally distributed and fixedly connected together, the first protection wing is connected to the outer wall of the inner column body, and the inner seat body is also provided with a first channel penetrating through the inner column body and the outer column body;

The outer seat body is provided with a cover body and second protection wings, the second protection wings are connected to the outer wall of the cover body, and the inner seat body is also provided with a second channel penetrating through the cover body;

The cover body can be sleeved outside the outer cylinder and connected together through the fixedly connecting structure, the first channel and the second channel are communicated with each other so that the air supply pipe extends into the mouth through the second channel and the first channel, and a space is arranged between the first protecting wing and the second protecting wing.

In a preferred embodiment, the fixing structure includes a first groove provided on a side wall of the outer cylinder and a first protrusion provided on an inner wall of the cover.

In a preferred embodiment, the first groove extends in a circumferential direction of the outer cylinder, and the first protrusion is rotatable in the circumferential direction in the first groove.

In a preferred embodiment, the bite block for securing an endotracheal tube during general anesthesia procedures includes a clamping mechanism for clamping the endotracheal tube through the first passageway.

In a preferred embodiment, the clamping mechanism comprises a movable arm arranged on the outer cylinder, a jacking structure is arranged on the inner wall of the cover body, and when the movable arm is in butt joint with the jacking structure, the jacking structure applies inward thrust to the movable arm so that the movable arm clamps the tracheal catheter in the first channel.

In a preferred embodiment, the movable arm is provided with a second protruding portion on the outer side, and the jacking structure comprises a second groove, and the second protruding portion can be clamped in the second groove.

In a preferred embodiment, the jacking structure comprises a plurality of second grooves which are circumferentially distributed, and the bottoms of the second grooves are different in distance from the central axis of the cover body.

In a preferred embodiment, the movable arm is provided with a compression pad on the inside.

In a preferred embodiment, the first wing extends outwardly from the outer wall of the outer cylinder and the second wing extends outwardly from the outer wall of the cover.

In a preferred embodiment, the first and second wings are covered with a silicone material or a soft skin-friendly material.

The utility model has the characteristics and advantages that:

When in use, the inner seat body is firstly placed in the oral cavity, the inner seat body, the inner column body and the first protective wings are positioned at the inner sides of teeth, and the outer column body extends to the outer sides of the teeth; then, the outer seat body is sleeved outside the outer cylinder body and connected together through the fixedly connected structure, the second protecting wings are positioned on the outer sides of the teeth, and the tracheal catheter can extend from the outside of the mouth to the inside of the mouth through the second channel and the first channel. Teeth are located in the space between the first protective wing and the second protective wing, so that the two directions of inward and outward are limited, the tooth pad for fixing the tracheal catheter in general anesthesia operation is enabled to achieve bidirectional limiting, the position change of the tracheal catheter is prevented, the interference of facial disinfection and operation of maxillofacial surgery is reduced, and the technical problem that the tracheal catheter is difficult to fix reliably after the tracheal intubation operation is completed when partial maxillofacial surgery is performed under general anesthesia is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a sectional view showing a separated state of a bite block for fixing an endotracheal tube in general anesthesia surgery according to the present utility model;

FIG. 2 is a cross-sectional view taken along the direction A-A of FIG. 1;

Fig. 3 is a sectional view taken along the direction B-B of fig. 1.

Reference numerals illustrate:

10. an inner housing; 11. an inner cylinder; 12. an outer cylinder; 13. a first wing; 14. a first channel;

20. an outer housing; 21. a cover body; 22. a second wing; 23. a second channel;

30. a fixedly connected structure; 31. a first groove; 32. a first boss;

40. A clamping mechanism;

50. A movable arm; 51. a second protruding portion; 52. a compression pad;

60. A jacking structure; 61. and a second groove.

Detailed Description

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

The present utility model provides a bite block for securing an endotracheal tube in general anesthesia procedures, as shown in fig. 1-3, the bite block comprising: the inner seat body 10, the outer seat body 20 and the fixedly connecting structure 30, wherein the inner seat body 10 is provided with an inner column body 11, an outer column body 12 and a first protecting wing 13, the inner column body 11 and the outer column body 12 are longitudinally distributed and fixedly connected together, the first protecting wing 13 is connected to the outer wall of the inner column body 11, and the inner seat body 10 is also provided with a first channel 14 penetrating through the inner column body 11 and the outer column body 12; the outer seat body 20 is provided with a cover body 21 and second protection wings 22, the second protection wings 22 are connected to the outer wall of the cover body 21, and the inner seat body 10 is also provided with a second channel 23 penetrating through the cover body 21; the cover 21 can be sleeved outside the outer cylinder 12 and connected together by a fastening structure 30, and the first channel 14 and the second channel 23 are connected so that the gas supply pipe conduit extends into the mouth through the second channel 23 and the first channel 14, and a space is provided between the first protecting wing 13 and the second protecting wing 22.

When the bite-block for fixing the tracheal catheter in general anesthesia operation is used, the inner seat body 10 is firstly placed in the oral cavity, the inner column body 11 and the first protective wings 13 of the inner seat body 10 are positioned at the inner sides of teeth, and the outer column body 12 extends to the outer sides of the teeth; the outer housing 20 is then sleeved over the outer cylinder 12 and connected together by the securing structure 30, with the second wings 22 located outside of the teeth, and the endotracheal tube can extend from outside the mouth to inside the mouth through the second channel 23 and the first channel 14. Teeth are located in the space between the first protecting wing 13 and the second protecting wing 22, so that the inward and outward directions are limited, the tooth pad for fixing the tracheal catheter in general anesthesia operation is enabled to realize bidirectional limiting, the position change of the tracheal catheter is prevented, the interference of facial disinfection and operation of maxillofacial surgery is reduced, and the technical problem that the tracheal catheter is difficult to reliably fix after the tracheal intubation operation is completed when partial maxillofacial surgery is performed under general anesthesia is solved.

In the bite block for fixing an endotracheal tube in general anesthesia operation provided by the utility model, the inner seat body 10 and the outer seat body 20 are of split structures, and are connected together through the fixedly connecting structure 30 during operation, and the space between the first protecting wing 13 and the second protecting wing 22 can clamp the patient incisors, so that the bite block has the function of bidirectionally fixing the endotracheal tube and is convenient to operate. In one embodiment, as shown in fig. 1, the fastening structure 30 includes a first groove 31 provided on a side wall of the outer cylinder 12 and a first protrusion 32 provided on an inner wall of the cover 21, and after the cover 21 is sleeved on the outer cylinder 12, the first protrusion 32 may be snapped into the first groove 31 to prevent the cover 21 from being separated from the outer cylinder 12, so as to connect the inner and outer seats 10 and 20 together.

When the outer base 20 is sleeved outside the outer cylinder 12, the outer base 20 and/or the outer cylinder 12 can be elastically deformed due to extrusion, so that the first protruding portion 32 is clamped into the first groove 31. Further, as shown in fig. 3, the first groove 31 extends in the circumferential direction of the outer cylinder 12, and the first protrusion 32 can rotate in the circumferential direction in the first groove 31, so that the outer cylinder 20 can also rotate relative to the inner cylinder 10 after the first protrusion 32 is caught in the first groove 31.

The manner in which the endotracheal tube extends through first passageway 14 and second passageway 23 for effecting the prevention of movement of the endotracheal tube relative to inner housing 10 or outer housing 20 is not limited to one type, for example: in one embodiment, a large frictional force can be generated between the inner wall of the first channel 14 or the second channel 23 and the outer wall of the endotracheal tube, which can prevent the endotracheal tube from moving when the external force is small.

In one embodiment, the bite block for securing an endotracheal tube during general anesthesia procedures includes a clamping mechanism 40, the clamping mechanism 40 being configured to clamp the endotracheal tube through the first passageway 14 to further stabilize the position of the endotracheal tube relative to the inner housing 10.

Further, as shown in fig. 1-3, the clamping mechanism 40 includes a movable arm 50 disposed on the outer cylinder 12, and a pushing structure 60 is disposed on the inner wall of the cover 21, and when the movable arm 50 abuts against the pushing structure 60, the pushing structure 60 applies an inward pushing force to the movable arm 50 so that the movable arm 50 clamps the tracheal catheter in the first channel 14.

In an embodiment, the second protruding portion 51 is disposed on the outer side of the movable arm 50, the jacking structure 60 includes a second groove 61, and the second protruding portion 51 can be clamped in the second groove 61, so that the position of the second protruding portion 51 in the second groove 61 is kept stable, and the movable arm 50 is ensured to clamp the tracheal catheter.

Further, the jacking structure 60 includes a plurality of second grooves 61 circumferentially distributed, and the bottoms of the second grooves 61 are not at the same distance from the central axis of the cover 21. The outer housing 20 can rotate relative to the inner housing 10, so that the second protruding portion 51 is clamped into a different second groove 61, and the inward extending position of the clamping arm is adjusted, so that the clamping arm can be matched with tracheal catheters with different outer diameters. As shown in fig. 2, the distances between the bottoms of the 3 second grooves 61 and the central axis of the cover 21 are gradually reduced in the clockwise direction, and when the inner housing 10 rotates in the clockwise direction, the second protrusions 51 of the movable arms 50 can be adjusted to be respectively clamped into the second grooves 61, and the movable arms 50 can be extended to the inner positions, so that the tracheal catheter with smaller outer diameter can be matched.

Preferably, as shown in fig. 2 and 3, the front end of the second groove 61 smoothly transitions with the inner wall of the outer housing 20 in a clockwise direction, and a step is formed between the rear end of the second groove 61 and the inner wall of the cover, so that after the second boss is caught in one second groove 61, the outer cylinder 12 can be rotated clockwise with respect to the outer housing 20 within the outer housing 20 to adjust the position of the movable arm 50 to be caught in the next second groove 61, but the counterclockwise rotation of the outer cylinder 12 with respect to the outer housing 20 is prevented.

In one embodiment, as shown in fig. 3, the inner side of the movable arm 50 is provided with a compression pad 52, the compression pad 52 being adapted to engage the outer wall of the endotracheal tube to facilitate clamping of the endotracheal tube. Preferably, the compression pad 52 has elasticity.

In one embodiment, the first wing 13 extends outwardly from the outer wall of the outer cylinder 12, the second wing 22 extends outwardly from the outer wall of the cover 21, the first wing 13 is positioned inside the teeth, the second wing 22 is positioned outside the teeth, and the first wing 13 and the second wing 22 clamp the teeth to prevent movement of the bite block. Preferably, the first and second wings 13 and 22 may have a circular or oval shape, or may be designed in other shapes. Further, the first and second wings 13 and 22 are covered with a silicone material or a soft skin-friendly material to avoid injuring the incisor gums.

After the tracheal intubation is completed, the inner seat 10 is placed in the oral cavity of a patient, the first protecting wings 13 are placed behind the incisors of the patient, the outer seat 20 and the inner seat 10 are combined and fixed, and the tracheal catheter penetrates into the oral cavity through the first channel 14 and the second channel 23. When the bite block for fixing the tracheal catheter in general anesthesia operation is used, the first protective wing 13 and the second protective wing 22 clamp the patient incisors to prevent the tracheal catheter from being displaced, so that the bite block has the function of bidirectionally fixing the tracheal catheter, provides a reliable fixing effect for the tracheal catheter in operation, prevents adverse effects caused by the position change of the tracheal catheter, is convenient for the operation of maxillofacial operation, and can also prevent the tracheal catheter from being displaced in various lateral position and prone position operations.

The bite-block for fixing the tracheal catheter in the general anesthesia operation provided by the utility model can be made of medical thermoplastic elastomer, and the soft material can prevent the incisors of patients from being damaged.

The dental pad for fixing the tracheal catheter in the general anesthesia operation is suitable for general anesthesia tracheal cannula operation (especially maxillofacial plastic operation, such as augmentation nose and facial fat filling, and the like), and in general anesthesia operation, the tracheal catheter is used for carrying out mechanical ventilation in operation, so that the dental pad can prevent a patient from occluding the tracheal catheter (closing a lumen) to cause incapacity of ventilation, and simultaneously has the function of fixing the position of the tracheal catheter.

The foregoing is merely a few embodiments of the present utility model and those skilled in the art may make various modifications or alterations to the embodiments of the present utility model in light of the disclosure herein without departing from the spirit and scope of the utility model.

Claims (10)

1. A bite block for securing an endotracheal tube during general anesthesia procedures, comprising:

An inner seat body, an outer seat body and a fixedly connecting structure,

The inner seat body is provided with an inner column body, an outer column body and a first protection wing, wherein the inner column body and the outer column body are longitudinally distributed and fixedly connected together, the first protection wing is connected to the outer wall of the inner column body, and the inner seat body is also provided with a first channel penetrating through the inner column body and the outer column body;

The outer seat body is provided with a cover body and second protection wings, the second protection wings are connected to the outer wall of the cover body, and the inner seat body is also provided with a second channel penetrating through the cover body;

The cover body can be sleeved outside the outer cylinder and connected together through the fixedly connecting structure, the first channel and the second channel are communicated with each other so that the air supply pipe extends into the mouth through the second channel and the first channel, and a space is arranged between the first protecting wing and the second protecting wing.

2. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 1, wherein,

The fixedly connected structure comprises a first groove arranged on the side wall of the outer column body and a first protruding portion arranged on the inner wall of the cover body.

3. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 2, wherein,

The first groove extends along the circumferential direction of the outer cylinder, and the first protruding portion can rotate in the circumferential direction in the first groove.

4. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 2, wherein,

The bite block for securing an endotracheal tube in a general anesthesia procedure includes a clamping mechanism for clamping the endotracheal tube extending through the first passage.

5. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 4, wherein,

The clamping mechanism comprises a movable arm arranged on the outer cylinder, a jacking structure is arranged on the inner wall of the cover body, and when the movable arm is in butt joint with the jacking structure, the jacking structure applies inward thrust to the movable arm so that the movable arm clamps the tracheal catheter in the first channel.

6. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 5, wherein,

The outside of the movable arm is provided with a second protruding portion, the jacking structure comprises a second groove, and the second protruding portion can be clamped in the second groove.

7. The bite-block for securing an endotracheal tube in a general anesthesia procedure as recited in claim 6, wherein,

The jacking structure comprises a plurality of second grooves which are circumferentially distributed, and the distances between the bottoms of the second grooves and the central shaft of the cover body are different.

8. The bite-block for securing an endotracheal tube in a general anesthesia procedure as recited in claim 7, wherein,

The inner side of the movable arm is provided with a pressing pad.

9. A dental pad for securing an endotracheal tube in a general anesthesia procedure as claimed in claim 1, wherein,

The first wings extend outwards from the outer wall of the outer column body, and the second wings extend outwards from the outer wall of the cover body.

10. The bite block for securing an endotracheal tube in a general anesthesia procedure as recited in claim 9, wherein,

The first protective wing and the second protective wing are covered by a silica gel material or a soft skin-friendly material.