CN209933741U - Negative pressure adsorption type tooth pad for fixing tracheal catheter - Google Patents

Abstract

A negative pressure adsorption tooth pad comprises a baffle plate and a groove. The lower half of the tooth pad is arc-shaped according to the shape of the tracheal tube in the oral cavity. There is a one-way exhaust hole on the groove, and there is a large gap between the groove and the tracheal tube. When the gas is discharged with force, the gap is obviously reduced, and the interior is negative pressure, so that the tracheal tube is adsorbed on the tooth pad. Then use a syringe to pump air to increase the negative pressure to enhance the fixation. The unique negative pressure adsorption design of the utility model, the greater the negative pressure, the firmer the fixation, and the negative pressure can slightly enlarge the cavity for ventilation of the tracheal tube. The general fixation method uses positive pressure, which may squeeze the catheter and cause the lumen to become smaller. The unique negative pressure adsorption design allows the tooth pad to be directly adsorbed with the tracheal tube, occupying a small volume of the oral cavity, which not only relieves the pain of the patient and facilitates oral care, but also requires only one person to perform it, saving manpower. The device has the characteristics of simple and reasonable structure, low cost, firm fixation and powerful functions.

Description

Negative pressure adsorption tooth pad for tracheal tube fixation

technical field

The invention relates to the technical field of medical instruments, in particular to a negative pressure adsorption type, anti-bite and gum-protecting tooth pad used for tracheal intubation fixation.

Background technique

Clinically, for critically ill patients and patients with general anesthesia, endotracheal intubation is required to help patients breathe. Tracheal intubation refers to the technique of inserting a special tracheal tube into the trachea through the glottis, which is called tracheal intubation.

The traditional tracheal intubation fixation method has always been to fix the dental pad and the tracheal intubation with adhesive tape, and then directly stick the adhesive tape to the patient's cheeks on both sides. This method has many defects: 1. The adhesive tape is easily affected by the sweat glands and oily secretions of the skin, making the adhesive tape not stick to the skin firmly, and the tracheal intubation still has a great degree of mobility, especially when the patient is restless or changes positions When the catheter is removed, it is more likely to cause catheter displacement and detachment, which may endanger the life of the patient; 2. The skin may also be stretched too tightly, which may easily make the patient feel uncomfortable, and even stimulate the skin to cause inflammation or epidermal ulceration, resulting in subsequent 3. The operation is complicated and often requires the cooperation of two people to complete; 4. Oral secretions are easily trapped on the tape to form a bacterial culture medium, which puts the patient at risk of infection.

In recent years, various types of special endotracheal intubation fixators have appeared, which are specially placed in the patient's mouth, which can be used to insert the trachea or sputum suction tube. However, most of them are complicated in design, expensive and expensive, with many corners and gaps, and oral secretions, sputum, etc. are easily retained, forming a bacterial culture medium, which puts patients at risk of infection.

And whether it is the traditional tape fixation method or the special endotracheal tube fixer, most of them have the following defects: 1. In order to better fix the endotracheal tube and prevent the tube from falling off, a large pressure is required, but the higher the pressure, the easier it is to squeeze 2. The oral cavity is sealed by tape or endotracheal intubation fixator, the tooth pad or catheter fixation device is too large, occupying a large area of the oral cavity, and the patient’s comfort is low, and It is inconvenient to clean up oral secretions, and two people are required to cooperate in oral care, which is a waste of manpower; 3. The tongue movement will disturb the catheter, and the catheter will be disturbed, which will cause the clamping part to loosen, resulting in the loosening of the tracheal intubation; 4. The occlusal part is made of hard materials, so although the problem of occlusion is avoided, it is easy to cause damage to the patient's teeth, gums, and oral mucosa, which needs to be improved.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a negative pressure adsorption tooth pad, which has a stable and reliable fixing method, occupies a small oral area, and has high patient comfort. , suitable for a wide range of clinical applications.

The present invention solves these technical problems by adopting a unique negative pressure adsorption tooth pad.

1. As shown in Figure 1, the groove (14) in the middle of the tooth pad is made of elastic material, there is a one-way exhaust hole (113) on the groove, and the groove matches the corresponding type of tracheal tube. As shown in Figure 2, there is a large gap (115) between the groove of the tooth pad (1) and the tracheal tube (2). The gap (116) between the groove of the shown tooth pad (1) and the tracheal tube (2) is significantly reduced, and the inside thereof is under negative pressure, so that the tracheal tube is adsorbed on the tooth pad. Then, a syringe can be used to pump air through the one-way air vent to further increase the internal negative pressure of the gap between the tooth pad and the tracheal tube, so that the tracheal tube can be more firmly adsorbed on the tooth pad.

2. As shown in Figure 1, the tooth pad is designed according to the shape of the tracheal tube after intubation in the oral cavity, and the lower half is arc-shaped to better adsorb the tracheal tube on the tooth pad.

3. As shown in Figure 4, the two ends of the groove shown in the longitudinal section of the tooth pad are slightly higher, and the exhaust hole of the tooth pad has a one-way valve (114), which is conducive to better closing the gap after exhausting gas, preventing air intake, and maintaining Gap negative pressure. The lower half of the tooth pad is gradually retracted, which reduces the volume of the tooth pad in the oral cavity, improves the comfort of the patient, and is conducive to better adsorption with the tracheal tube.

4. There is a tie on the tie hole (121), which can be used to tie the dental pad and the tracheal tube together to improve firmness and increase safety. Then, it can be tied directly to the patient's neck with a tether to effectively fix it.

5. The middle of the tooth pad is made of hard non-toxic materials (111) such as PC to prevent occlusion, and the outer periphery of the tooth pad is made of elastic TPE, silica gel and other soft non-toxic materials (112), which are hard on the inside and soft on the outside. The inner hard outer soft design prevents the bite caused by the bite tube, and also has a protective effect on the oral mucosa, teeth and gums.

6. The baffle plate (12) of the dental pad is placed outside the patient's mouth and against the patient's lips or the outer surface of the teeth, thereby preventing the tracheal tube from sliding deep into the airway and causing unilateral lung ventilation.

The beneficial effects of the present invention are: 1. Unique negative pressure adsorption design, the greater the negative pressure of adsorption, the firmer the fixation, and the negative pressure can slightly enlarge the cavity for tracheal intubation ventilation. In general, in order to better fix the tracheal tube and prevent the tracheal tube from falling off, a large positive pressure is required, but the higher the pressure, the firmer the fixation, and the easier it is to squeeze the tube, resulting in a cavity for tracheal intubation ventilation. 2. Unique negative pressure adsorption design, combined with a tie to tie the tooth pad and the tracheal tube together, so that one side of the tracheal tube and the tooth pad is fixed by negative pressure adsorption, and the other side is fixed by positive pressure, so that more solid. If necessary, as shown in Figure 5, the tracheal tube can be fixed at the same time with 2 tooth pads on the left and right, which will be more firm, but at the same time has the side effect of increasing the volume of the oral cavity; 3. The unique negative pressure adsorption design makes the tooth pad directly connect to the trachea The catheter sticks to one piece, and it feels like there is only one endotracheal tube. The small size of the oral cavity can not only reduce the pain of patients, but also facilitate the cleaning of oral secretions. Only one person can perform oral care, which saves manpower. , The oral mucosa has a protective effect; 4. There is a tie on the tie hole, which can be directly tied to the patient's neck with a tie to effectively fix it. It avoids the shortcomings of the traditional tape fixation, such as easy loosening and allergies, and also reduces the pain of the patient and the tedious operation of the medical staff. Complicated steps such as tearing off the tape or removing the endotracheal tube retainer can be performed by one person.

The device can quickly and reliably fix critically ill patients after orotracheal intubation in pre-hospital first aid, in-hospital treatment, and emergency medical rescue events; the device has a simple and reasonable structure, low cost, easy to carry and use, firm fixation and powerful functions. It provides a reliable way for the fixation of critically ill patients after orotracheal intubation.

Description of drawings

Figure 1 is a schematic diagram of the structure of the tooth pad;

Figure 2 is a schematic view of the cross-section of the tooth pad and the tracheal tube in Figure 1 parallel to the baffle before adsorption;

Figure 3 is a schematic view of the cross-section of the tooth pad and the tracheal tube in Figure 1 parallel to the baffle after adsorption;

Fig. 4 is a schematic diagram of the structure of the tooth pad of Fig. 1 before the adsorption of the longitudinal section perpendicular to the baffle;

Figure 5 is a schematic structural diagram of the cross-section of the left and right tooth pads and the tracheal tube parallel to the baffle in Figure 1 after adsorption;

In the figure 1. The tooth pad, 11. The upper part of the tooth pad, 111. The hard material in the middle of the tooth pad to prevent occlusion, 112. The soft material for the outer periphery of the tooth pad to prevent damage, 113 The one-way air vent of the tooth pad, 114 . One-way valve of the air vent of the tooth pad, 115. The gap between the cross section of the tooth pad and the tracheal tube before adsorption, 116. The gap between the cross section of the tooth pad and the tracheal tube after adsorption, 12. The baffle of the tooth pad, 121. The tie hole of the dental pad, 13. The lower part of the dental pad includes the bite part and the extension part, 14. The groove of the dental pad.

Detailed ways

When using, note that the tooth pads should be placed in the corresponding tooth pads according to different types of tracheal tubes, and the tooth pads have left-side adsorption and right-side adsorption. Generally, the dental pad and the corresponding type of endotracheal tube are put together or packaged for convenience.

1. Moisten the groove of the tooth pad with water to better fit the tracheal tube (without this step in an emergency, it generally does not affect the use).

2. After the tracheal tube is inserted, put the tooth pad into the patient's mouth, adjust the position, and force the gas to discharge through the one-way exhaust hole and the periphery of the tooth pad, and the inside is negative pressure, so that the tracheal tube is adsorbed on the tooth pad. .

3. Tie the dental pad and the tracheal tube together with a tie to improve firmness and increase safety. Then, it can be directly tied to the patient's neck with a tie to effectively fix it. Under normal circumstances, no tape is needed. In special cases, if the patient is obviously restless, it can be added with tape to improve safety.

4. Use a syringe to pump air through the one-way exhaust hole to further reduce the negative pressure inside the tooth pad, so that the tracheal tube is more firmly attached to the tooth pad.

5. Under special circumstances, if the patient is obviously restless and biting the tube, if necessary, two tooth pads on the left and right can be placed to fix the tracheal tube as shown in Figure 5, which will be more firm, but at the same time, it has the side effect of increasing the volume of the oral cavity.

6. If you need to remove the tooth pad, you can use a gas needle similar to playing basketball to insert the one-way exhaust hole to allow the gas to enter, and the negative pressure can disappear. It is also possible to use a syringe to insert air through the soft material in the groove of the tooth pad into the air pipe and the gap between the tooth pad, but it should be noted that if the original tooth pad is continued to be used by the syringe method, the sealing performance of the tooth pad may be reduced.

The present invention is not limited to the specific embodiments described above, but extends to various modifications within the scope of the appended claims. In fact, the original design of the tooth pads does not have one-way air vents. In the trial of the model, it was found that by squeezing the tooth pad and the tracheal tube, it is also possible for the gas to leak through the periphery of the tooth pad, and the structure of the tooth pad is simpler, which further reduces the cost of the tooth pad, but the internal negative pressure is relatively low, which reduces the firmness. Another example is that the one-way air vent of the tooth pad can be placed on the side of the tooth pad instead of the top. It should be understood by those skilled in the art that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims (6)

1. The utility model provides a negative pressure adsorbs formula bite-block, characterized by: the groove in the middle of the tooth pad is made of soft materials, a gap is formed between the groove and the corresponding tracheal catheter, the gap is reduced after gas is discharged, and the interior of the groove is negative pressure, so that the tracheal catheter is adsorbed on the tooth pad.

2. The bite block of claim 1, wherein: two ends of the groove are slightly higher, and the groove is provided with a one-way exhaust hole, so that the gap can be better sealed after gas is exhausted, air is prevented from entering, and the negative pressure of the gap is kept; the lower half section of the bite-block is gradually retracted, the volume of the bite-block in the oral cavity is reduced, the comfort level of a patient is improved, and meanwhile, the suction of the bite-block with a tracheal catheter is facilitated.

3. The bite block of claim 1, wherein: the bite-block is according to the design of walking the shape of endotracheal tube after the intubate in the oral cavity, and the lower half is the arc to better adsorb endotracheal tube on the bite-block.

4. The bite block of claim 1, wherein: the upper lacing hole of the tooth pad is provided with a lacing for fixing the tracheal catheter on the tooth pad and then tying the tracheal catheter on the neck of the patient, thereby playing an effective fixing role.

5. The bite block of claim 1, wherein: the bite block is provided with a baffle plate to prevent the tracheal catheter from slipping.

6. The bite block of claim 1, wherein: the middle of the bite block is made of hard non-toxic materials such as PC and the like which are prevented from biting and closing, the periphery of the bite block is made of soft non-toxic materials such as elastic TPE (thermoplastic elastomer) and silica gel, and the bite block is hard inside and soft outside after being compounded.

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