Bite block
By designing a bite pad with an inflatable air bladder and a retractable mechanism, the problems of unstable bite pad fixation and skin pressure injury have been solved, achieving stable fixation of endotracheal tubes and convenient oral care, thus improving patient comfort and safety.
Patent Information
- Application Number
- CN202422867815.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing dental splints can easily cause pressure injuries to the patient's skin when fixing endotracheal tubes, and the endotracheal tubes are prone to movement, increasing the risk of dislodgement or displacement. They also affect oral care and can easily lead to halitosis and fungal infections.
A dental pad was designed with an inflatable air bladder and a retractable mechanism. The air bladder secures the endotracheal tube, preventing it from protruding. The pad also features a nozzle and injection connector for easy oral care. The retractable mechanism is used to secure the pad to the head with a strap, reducing pressure damage to the skin.
It achieves stable fixation of the endotracheal tube, reduces skin damage, improves comfort, facilitates oral care, and reduces the risk of halitosis and fungal infection.
Smart Images

Figure CN223831554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a dental pad. Background Technology
[0002] With advancements in medical science, bite blocks for endotracheal intubation have become an important auxiliary tool to ensure patient safety and comfort during the intubation process. Postoperatively, to reduce the risk of complications such as endotracheal tube displacement and collapse, hospitals routinely use bite blocks to secure the endotracheal tube and protect the patient's oral tissues.
[0003] Currently, mouthguards are fixed in clinical use with straps, but the straps have protruding parts at the knots, which can cause pressure damage to the patient's skin and cause discomfort. In addition, the endotracheal tube can easily move within the mouthguard, which can lead to dislodgement or displacement of the endotracheal tube, increasing the risk of mechanical injury to the patient. Furthermore, the use of endotracheal tubes and mouthguards affects effective oral care and can easily cause a large accumulation of bacteria in the oropharynx, leading to halitosis and fungal infections. Utility Model Content
[0004] The purpose of this invention is to provide a dental pad that can prevent protrusions when fixing a dental pad, effectively fix endotracheal tubes, prevent their movement, and facilitate oral care for patients.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows.
[0006] A dental pad includes a tube with multiple grooves on its inner wall, each groove containing an inflatable air bladder. An annular block is attached to one end of the tube, and the annular block has a first inner cavity. Multiple connecting tubes are connected to the outer surface of the annular block, with the ends of the connecting tubes connected to the inflatable air bladders. An inflation connector with a one-way valve is mounted on the outer surface of the annular block. A strap is attached to one side of the outer surface of the tube, and a winding mechanism is located on the other side of the outer surface of the tube, capable of winding up the strap.
[0007] Therefore, by passing the endotracheal tube through the tube body and then inflating it into the first inner cavity through the inflation connector, the inflatable cuff expands and adheres tightly to the outer surface of the endotracheal tube, achieving the purpose of fixation. This can prevent the endotracheal tube from dislodging or shifting, and the inflatable cuff has a strong fit, so it will not damage the endotracheal tube. The winding mechanism can be used to wind up the strap and fix it to the patient's head. The part of the strap that contacts the skin is smooth and flat without any protrusions, thereby reducing pressure damage to the patient's skin and improving comfort.
[0008] Furthermore, the winding mechanism includes a housing mounted on the outer surface of the tube body, a winding shaft rotatably mounted inside the housing, and the end of the strap wrapped around the winding shaft. The end of the winding shaft extends through to the outside of the housing and is fitted with a knob. Multiple screw holes are coaxially arrayed around the winding shaft on the upper surface of the housing, and screws matching the screw holes are installed on the knob.
[0009] Furthermore, a second inner cavity is provided inside the tube, spray holes are uniformly provided on the outer surface of the tube, and an injection connector is installed on the outer surface of the tube.
[0010] Furthermore, side grooves are provided on the inner walls of both the tube body and the annular block.
[0011] Furthermore, a retaining ring is provided on the outer surface of the tube.
[0012] Furthermore, the outer surface of the knob is provided with a rubber pad, and the outer surface of the rubber pad is provided with anti-slip texture.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows.
[0014] 1. This utility model passes the endotracheal tube through the tube body and then inflates the first inner cavity through the inflation connector, thereby causing the inflatable bladder to expand and adhere tightly to the outer surface of the endotracheal tube, achieving the purpose of fixation. This can prevent the endotracheal tube from dislodging or shifting, and the inflatable bladder has a strong fit and will not damage the endotracheal tube.
[0015] 2. This utility model, through the setting of the winding mechanism, can wind up the strap and fix it on the patient's head. The part of the strap that contacts the skin is smooth and flat without any protruding parts, thereby reducing pressure damage to the patient's skin and improving comfort. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the structure of the tube body in this utility model;
[0018] Figure 3 This is a schematic cross-sectional view of the tube body of this utility model;
[0019] Figure 4 for Figure 2 Enlarged diagram of A in the middle;
[0020] Figure 5 This is a schematic diagram of the regional structure of the shell in this utility model.
[0021] In the diagram: 100, tube body; 101, groove; 102, inflatable air bladder; 103, annular block; 104, connecting tube; 105, first inner cavity; 106, inflation connector; 107, strap; 200, winding mechanism; 201, housing; 202, winding shaft; 203, knob; 204, screw hole; 205, screw; 300, second inner cavity; 301, spray hole; 302, injection connector; 400, side groove; 500, retaining ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0024] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.
[0025] like Figure 1-5As shown, a dental pad includes a tube 100. Multiple grooves 101 are formed on the inner wall of the tube 100. An inflatable air bladder 102 is disposed inside each groove 101. An annular block 103 is installed at one end of the tube 100. A first inner cavity 105 is formed inside the annular block 103. Multiple connecting pipes 104 are connected to the outer surface of the annular block 103. The ends of the connecting pipes 104 are connected to the inflatable air bladder 102. An inflation connector 106 is installed on the outer surface of the annular block 103, and a one-way valve is disposed inside the inflation connector 106. A strap 107 is connected to one side of the outer surface of the tube 100, and a winding mechanism 200 is provided on the other side of the outer surface of the tube 100. The winding mechanism 200 can wind up the strap 107.
[0026] In use, the endotracheal tube is first passed through the tube body 100, then inserted into the patient's mouth, with the tube body 100 supporting the patient's teeth and protecting the endotracheal tube. The syringe is then connected to the inflation connector 106 and inflated. The gas enters the first inner cavity 105 and then flows through the connecting tube 104 into multiple inflatable bladders 102, causing the multiple inflatable bladders 102 to inflate simultaneously and adhere tightly to the outer surface of the endotracheal tube for fixation. Because the inflation connector 106 has a one-way valve, air leakage is prevented. Next, the strap 107 is wrapped around the back of the patient's head and wound up using the winding mechanism 200, securing the strap 107 to the patient's head. The area of the strap 107 in contact with the skin is smooth and flat, without protrusions, thus reducing pressure damage to the patient's skin and improving comfort.
[0027] Specifically, the winding mechanism 200 includes a housing 201 mounted on the outer surface of the tube 100. A winding shaft 202 is rotatably mounted inside the housing 201, and the end of the strap 107 is wound around the winding shaft 202. The end of the winding shaft 202 extends through to the outside of the housing 201 and is fitted with a knob 203. A plurality of screw holes 204 are coaxially arrayed around the winding shaft 202 on the upper surface of the housing 201. Screws 2 that match the screw holes 204 are mounted on the knob 203. 05. When winding up the bandage 107, first unscrew the screw 205 from the screw hole 204 to release the fixation of the knob 203. Then, turn the knob 203 to drive the winding shaft 202 to rotate, so that the winding shaft 202 winds the bandage 107 onto its outer surface, thereby shortening the length of the bandage 107 and making it tied to the patient's head. When the length of the bandage 107 is appropriate, screw the screw 205 back into the screw hole 204 to fix the winding shaft 202.
[0028] Specifically, the tube body 100 has a second inner cavity 300 inside, and spray holes 301 are evenly distributed on the outer surface of the tube body 100. An injection connector 302 is installed on the outer surface of the tube body 100. When oral care is required for the patient, a syringe can be used to inject oral freshener and saline from the injection connector 302 into the second inner cavity 300, and then spray it outward through the evenly distributed spray holes 301, thereby achieving the purpose of oral care and avoiding the accumulation of a large number of bacteria in the oropharynx, which can lead to halitosis and fungal infection.
[0029] Specifically, the inner walls of the tube body 100 and the annular block 103 are provided with side grooves 400, and an air bag is provided on the outer side of the endotracheal tube. An air bag tube is connected to the air bag for inflating the air bag. The side grooves 400 provide a protective position for the air bag tube to prevent it from being bitten off, thus affecting the normal use of the endotracheal tube.
[0030] Specifically, a retaining ring 500 is provided on the outer surface of the tube 100. When the patient bites the tube 100, the retaining ring 500 rests against the outside of the teeth, thereby restricting the position of the tube 100 and improving its positional stability.
[0031] Specifically, the outer surface of the knob 203 is provided with a rubber pad, and the outer surface of the rubber pad is provided with anti-slip texture. By setting the rubber pad and anti-slip texture, the friction between the knob 203 and the hand can be increased, which can reduce the slippage of the hand when turning the knob 203.
[0032] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.
Claims
1. A dental pad, comprising a tube (100), characterized in that: The inner wall of the tube (100) is provided with a plurality of grooves (101), and an inflatable airbag (102) is provided inside the grooves (101). An annular block (103) is installed at the end of the tube (100). A first inner cavity (105) is provided inside the annular block (103). A plurality of connecting pipes (104) are connected to the outer surface of the annular block (103). The end of the connecting pipe (104) is connected to the inflatable airbag (102). An inflation connector (106) is installed on the outer surface of the annular block (103). A one-way valve is provided inside the inflation connector (106). A strap (107) is connected to one side of the outer surface of the tube (100), and a winding mechanism (200) is provided on the other side of the outer surface of the tube (100). The winding mechanism (200) can wind up the strap (107).
2. The dental pad according to claim 1, characterized in that: The winding mechanism (200) includes a housing (201) mounted on the outer surface of the tube (100). A winding shaft (202) is rotatably mounted inside the housing (201), and the end of the strap (107) is wound around the winding shaft (202). The end of the winding shaft (202) extends through to the outside of the housing (201) and is fitted with a knob (203). A plurality of screw holes (204) are coaxially arrayed around the winding shaft (202) on the upper surface of the housing (201), and screws (205) that match the screw holes (204) are mounted on the knob (203).
3. A dental pad according to claim 1, characterized in that: The tube body (100) has a second inner cavity (300) inside, and spray holes (301) are uniformly opened on the outer surface of the tube body (100). An injection connector (302) is installed on the outer surface of the tube body (100).
4. A dental pad according to claim 1, characterized in that: The inner walls of both the tube (100) and the annular block (103) are provided with side grooves (400).
5. A dental pad according to claim 1, characterized in that: A retaining ring (500) is provided on the outer surface of the tube body (100).
6. A dental pad according to claim 2, characterized in that: The outer surface of the knob (203) is provided with a rubber pad, and the outer surface of the rubber pad is provided with anti-slip texture.