CN209933741U

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

Info

Publication number: CN209933741U
Application number: CN201920068803.9U
Authority: CN
Inventors: 黄加庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-01-14
Anticipated expiration: 2029-01-16

Abstract

A negative pressure adsorption type bite block comprises a baffle plate and a groove. The lower half part of the bite block is arc-shaped according to the shape of the tracheal catheter in the oral cavity. The groove is provided with a one-way exhaust hole, a larger gap is formed between the groove and the tracheal catheter, and the tracheal catheter is exhausted by pressing gas with force, so that the gap is obviously reduced, and the interior of the tracheal catheter is in negative pressure, thereby adsorbing the tracheal catheter on the dental pad. Then the negative pressure is increased by pumping air by using an injector to strengthen the fixation. The utility model discloses unique negative pressure adsorption type design, the negative pressure is big more, and is fixed more firm, and the negative pressure can make the slight grow in chamber way that endotracheal tube ventilated moreover. However, the normal fixation method adopts positive pressure, which may collapse the catheter and cause the lumen to become smaller. The unique negative pressure adsorption type design makes the bite-block directly adsorb with endotracheal tube, occupies that oral cavity portion is small, can not only alleviate patient's misery, conveniently carries out oral care, only needs alone to go on moreover, practices thrift the manpower. The device has the characteristics of simple and reasonable structure, low cost, firmness in fixation and strong functions.

Description

Negative pressure adsorption type tooth pad for fixing tracheal catheter

Technical Field

The invention relates to the technical field of medical instruments, in particular to a negative pressure adsorption type bite-preventing gum-protecting bite-block for fixing a tracheal cannula.

Background

In clinical treatment, critical patients and general anesthesia patients need to be intubated with trachea to help the patients breathe. The technology of placing a special tracheal catheter into the trachea through the glottis is called tracheal intubation, and the technology can provide optimal conditions for smooth air passage, ventilation and oxygen supply, respiratory tract suction, prevention of aspiration and the like.

The traditional tracheal intubation fixing method is that firstly a bite block and a tracheal intubation are fixed by an adhesive tape and then the adhesive tape is directly pasted on two cheeks of a patient. This approach has a number of drawbacks: 1. the adhesive plaster is easily affected by sweat glands and oily secretion of the skin, so that the adhesive plaster is not firmly adhered to the skin, the tracheal cannula still has great mobility after being fixed, and particularly, when a patient is restless or changes the body position, the phenomena of catheter displacement, catheter falling and the like are more easily generated to endanger the life safety of the patient; 2. the phenomenon of over-tight skin traction can also occur, which is easy to cause discomfort of patients and even stimulates the skin to cause inflammation or epidermal ulceration, thus leading to secondary hair dyeing; 3. the operation is complex and can be completed by the cooperation of two persons; 4. the oral secretion is easy to be retained on the adhesive plaster to form a bacterial culture medium, so that the patient is in danger of infection.

In recent years, various types of special tracheal cannula holders have appeared, which are placed exclusively in the mouth of a patient, and can be used for inserting a trachea or a sputum suction tube. However, most of the oral cavity bacteria culture medium has complex design, high price, high cost, more corners and gaps, and easy detention of oral secretion, sputum and the like to form a bacteria culture medium, which causes the risk of infection of patients.

And whether the traditional rubberizing method or the special tracheal cannula fixer is adopted, most of the defects exist: 1. in order to fix the tracheal catheter better and prevent the trachea from falling off, larger pressure is needed, but the larger the pressure is, the easier the pressure is to squeeze the catheter, so that the ventilation cavity of the tracheal cannula becomes smaller; 2. the oral cavity is sealed by an adhesive tape or a tracheal cannula fixer, and a bite block or a catheter fixing device is larger, so that the occupied area of the oral cavity is too large, the comfort level of a patient is low, the secretion in the oral cavity is inconvenient to clean, two persons are required to cooperate to carry out oral cavity nursing, and manpower is wasted; 3. the motion of the tongue can disturb the catheter, and the clamped part can be loosened after the catheter is disturbed, so that the tracheal cannula is loosened; 4. the occlusion part is made of hard material, so that the occlusion problem is avoided, but the injury to the teeth, the gum and the oral mucosa of a patient is easy to cause, and needs to be improved.

Disclosure of Invention

In order to solve the problems, the invention provides a negative pressure adsorption type tooth pad which is stable and reliable in fixing mode, small in occupied oral cavity area, high in patient comfort level, not easy to damage teeth, gums and oral mucosa of a patient, convenient to clean oral secretions and suitable for wide clinical application.

The present invention solves these problems with a unique negative pressure suction bite block.

1. As shown in figure 1, the groove (14) in the middle of the bite block is made of elastic material, a one-way exhaust hole (113) is arranged on the groove, and the groove is matched with the tracheal catheter with the corresponding model. As shown in figure 2, a larger gap (115) is arranged between the groove of the bite block (1) and the tracheal catheter (2), and after being squeezed forcibly, air is exhausted through the one-way exhaust hole and the periphery of the bite block, so that the gap (116) between the groove of the bite block (1) and the tracheal catheter (2) as shown in figure 3 is obviously reduced, and the interior of the gap is in negative pressure, and the tracheal catheter is adsorbed on the bite block. Then the syringe can be used for further increasing the internal negative pressure in the gap between the bite block and the tracheal catheter by exhausting air through the one-way exhaust hole, so that the tracheal catheter is more firmly adsorbed on the bite block.

2. As shown in figure 1, the bite block is designed according to the shape of the intubated tracheal catheter in the oral cavity, and the lower half part of the bite block is arc-shaped, so that the tracheal catheter can be better adsorbed on the bite block.

3. As shown in figure 4, the two ends of the groove shown by the longitudinal section of the bite block are slightly higher, and the exhaust hole of the bite block is provided with a one-way valve (114) so as to be beneficial to better sealing the gap after exhausting gas, preventing gas from entering and keeping the negative pressure of the gap. 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.

4. The tying holes (121) are provided with tying belts which can be used for tying the bite block and the tracheal catheter together so as to improve the firmness and the safety. Then the patient can be directly tied on the neck of the neck by a lace, thereby achieving the effective fixing function.

5. The middle of the bite block is made of hard non-toxic materials (111) such as PC and the like which are prevented from biting, the periphery of the bite block is provided with soft non-toxic materials (112) such as elastic TPE and silica gel, and the bite block is hard inside and soft outside after being compounded. The design of hard inside and soft outside can prevent the tube from biting and closing, and protect the mucosa of the oral cavity, teeth and gum.

6. The baffle (12) of the bite block is arranged outside the oral cavity of the patient and is propped against the outer surface of the lips or teeth of the patient, so that the tracheal catheter can be prevented from sliding into the deep part of the airway to cause ventilation of the unilateral lung.

The invention has the beneficial effects that: 1. the unique negative pressure adsorption type design, the larger the adsorbed negative pressure is, the firmer the fixation is, and the negative pressure can slightly enlarge the cavity of the tracheal cannula. The common tracheal cannula fixer needs larger positive pressure for better fixing the tracheal cannula and preventing the tracheal cannula from falling off, but the larger the pressure is, the firmer the tracheal cannula is fixed, and the more easily the tracheal cannula is squeezed, so that the ventilation cavity of the tracheal cannula is reduced; 2. unique negative pressure adsorbs the formula design, combines to be in the same place bite-block and endotracheal tube system with the frenulum, makes endotracheal tube and fixed one side of bite-block adsorb for the negative pressure, and one side is fixed for the malleation, and is more firm like this. If necessary, the tracheal catheter can be fixed by using the left and right dental cushions as shown in figure 5, so that the tracheal catheter is firmer, but has the side effect of increasing the volume of the oral cavity; 3. the unique negative pressure adsorption type design enables the bite block to be directly adsorbed with the tracheal catheter, and the user feels like only one tracheal catheter. The occupied oral cavity part has small volume, thereby not only relieving the pain of a patient, but also being convenient for cleaning the secretion in the oral cavity, and only one person is needed for oral nursing, thereby saving the manpower; the occupied oral cavity part is small in volume, and the soft material is wrapped outside, so that the tooth, the gum and the oral mucosa of a patient are protected; 4. the tying hole is provided with a tying belt which can be directly tied on the neck of the patient to play an effective fixing role. The defects of easy looseness, allergy and the like of the traditional adhesive tape fixation are avoided, meanwhile, the pain of a patient is relieved, and the complicated operation of medical staff is reduced; meanwhile, the oral cavity is in an open state, which is beneficial to nursing work such as sputum suction, oral secretion clearing and the like, and one person can operate the oral cavity without tearing the adhesive plaster or removing the tracheal cannula fixer and other complex steps.

The device can be used for quickly and reliably fixing critical patients after oral tracheal intubation in pre-hospital first aid, hospital rescue and emergency medical rescue events; the device has the characteristics of simple and reasonable structure, low cost, convenient carrying and use, firm fixation and powerful functions, and provides a reliable way for the fixation of critically ill patients after the oral tracheal intubation.

Drawings

FIG. 1 is a schematic view of the bite block;

FIG. 2 is a schematic structural view of the bite block and endotracheal tube of FIG. 1 taken parallel to the transverse plane of the baffle before suction;

FIG. 3 is a schematic view of the bite block and endotracheal tube of FIG. 1 after being absorbed along a cross-section parallel to the baffle;

FIG. 4 is a schematic structural view of the bite block of FIG. 1 taken perpendicular to a longitudinal section of the baffle before adsorption;

FIG. 5 is a schematic view of the left and right 2 tooth pads and endotracheal tube of FIG. 1 after being adsorbed on a cross section parallel to the baffle;

in the figure 1, a bite block, 11, the upper part of the bite block, 111, a hard material for preventing bite closure in the middle of the bite block, 112, a soft material for preventing injury on the periphery of the bite block, 113, a one-way exhaust hole of the bite block, 114, a one-way valve of the bite block exhaust hole, 115, a gap before adsorption of the cross sections of the bite block and an endotracheal tube, 116, a gap after adsorption of the cross sections of the bite block and the endotracheal tube, 12 baffle plates of the bite block, 121, a tying hole of the bite block, 13, the lower part of the bite block comprises a bite part and an extension part, and 14, a groove of the bite block.

Detailed Description

When in use, the bite block is placed into the corresponding bite block according to different types of tracheal catheters, and the bite block is distinguished by left side adsorption and right side adsorption. The bite block and the tracheal catheter of the corresponding type are generally put together or packed for convenient use.

1. The bite block groove is wetted with water prior to use to better fit the endotracheal tube (absence of this step in an emergency generally does not affect use).

2. After the tracheal catheter is inserted, the bite block is put in the mouth of a patient, the position of the bite block is adjusted, and forced air is exhausted through the one-way exhaust hole and the periphery of the bite block to form negative pressure inside the bite block, so that the tracheal catheter is adsorbed on the bite block.

3. The bite block and the tracheal tube are tied together with a tie to improve firmness and safety. The patient can be directly tied on the neck by the tying belt to play an effective fixing role, the adhesive plaster is not needed to be pasted under the general condition, and the adhesive plaster can be pasted to improve the safety under the special condition such as obvious restlessness of the patient.

4. The negative pressure in the tooth pad is further reduced by using the injector to exhaust air through the one-way exhaust hole, so that the tracheal catheter is more firmly adsorbed on the tooth pad.

5. In special cases, if the patient is obviously restless and bites the trachea obviously, the left and right cushions can be placed to fix the tracheal catheter as shown in figure 5 if necessary, so that the tracheal catheter is firmer, but has the side effect of increasing the volume of the oral cavity.

6. If the bite block needs to be taken down, an air needle similar to that used for basketball shooting can be inserted into the one-way exhaust hole to enable air to enter, and the negative pressure disappears. The air can also be injected into the gap between the endotracheal tube and the bite block by a syringe through the soft material of the bite block groove, but the syringe method can cause the sealing performance of the bite block to be reduced if the original bite block is continuously used.

The invention is not limited to the specific embodiments described above, but extends to various modifications that nevertheless fall within the scope of the appended claims. In fact, the original designed bite block is not provided with the one-way vent hole. Discover extrusion bite-block and endotracheal tube in the model is tried, it is also possible that gas leaks through the bite-block periphery, and the cost of bite-block is further reduced to the simpler of bite-block structure moreover, but inside negative pressure is lower relatively, reduces the fastness. For example, the one-way vent holes of the bite block can be arranged on the side edge of the bite block instead of the upper edge. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made without departing from the spirit and scope of the present invention, which is to be covered by the appended claims.

Claims

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.