CN110584579A - Oral cavity mouth gag and medical equipment - Google Patents

Abstract

Embodiments of the present invention provide an oral mouth gag and medical equipment, which relate to the technical field of medical equipment. The mouth opener includes a body and first and second abutting portions arranged on opposite sides of the body. The main body is provided with a tunnel through, and the two ends of the tunnel respectively form an inlet and an outlet. The first abutting portion has a first abutting surface, and the second abutting portion has a second abutting surface, the first abutting surface is used to abut against the outer side or upper lip of the upper row of teeth, and the second abutting surface is used to abut against the outer side or lower lip of the lower row of teeth For the lips, along the penetration direction from the entrance to the exit, the first resisting surface is closer to the exit than the second resisting surface, so that the upper jaw and the lower jaw are dislocated. By misaligning the upper and lower jaws, the patient's pharyngeal tissue can keep the patient's upper airway unobstructed under the action of the first and second resistance surfaces during the entire process of endoscopic examination.

Description

Mouth gags and medical equipment

technical field

The invention relates to the technical field of medical devices, in particular to an oral cavity mouthpiece and medical equipment.

Background technique

Oral gags, also known as bite pads, digestive endoscope mouth pads, etc.

When the doctor is performing an endoscopic examination, the patient will have such symptoms: When the clinical patient is subjected to a systemic intravenous sedation endoscopic examination (ie, painless endoscopy), the patient is in an unconscious state due to anesthesia. At this time, the patient It is necessary to lie on one side or lie down and wear a mouth pad to help the patient maintain the mouth shape, so that the medical staff can smoothly insert the endoscope into the patient's mouth for inspection. Generally, 90% of patients are first anesthetized and then anesthetized; 10% of patients are anesthetized before inserting the mouth pad. When the mouth pad is inserted, the patient's esophagus becomes narrowed, and in patients with tongue ptosis, the esophagus becomes blocked.

Due to anesthesia, patients often have tongue backwards and upper airway obstruction, and in severe cases, hypoxia may occur. If the anesthetic drug administered to the patient is a respiratory depressant, it may also lead to respiratory-related risks such as hypoventilation, oxygen desaturation, and apnea.

Therefore, how to design a device that can avoid the risk of hypoxia caused by physiological phenomena such as airway obstruction caused by anesthesia is an urgent problem to be solved at present.

Contents of the invention

Objects of the present invention include, for example, providing an oral mouth gag capable of keeping the patient's upper airway open and solving the problem of narrowing of the esophageal entrance caused by tongue drooping.

The purpose of the present invention is also to provide a medical device, which can keep the patient's upper airway unobstructed and solve the problem of narrowing of the entrance of the esophagus caused by drooping tongue.

Embodiments of the present invention can be realized like this:

An embodiment of the present invention provides an oral mouth opener, which includes a body and first and second abutting portions disposed on opposite sides of the body;

A channel is provided through the body, and the two ends of the channel respectively form an inlet and an outlet;

The first resisting portion has a first resisting surface, the second resisting portion has a second resisting surface, the first resisting surface is used to resist the outer side of the upper row of teeth or the upper lip, and the second resisting surface is used for Against the outer side or lower lip of the lower row of teeth, along the penetration direction from the inlet to the outlet, the first abutment surface is closer to the outlet relative to the second abutment surface, so that the upper and lower jaws are dislocated.

Optionally, the mouth opener further includes a soft pad, which is arranged on the side of the body away from the hole, and is used for being used by the upper row of teeth and/or the lower row of teeth. teeth bite.

Optionally, the soft pad is ring-shaped, the soft pad is sleeved on the body, and the soft pad is used to be bitten by the upper row of teeth and the lower row of teeth at the same time.

Optionally, a side edge of the body close to the outlet is provided with a first limiting portion, the first limiting portion extends in a direction away from the hole, the first limiting portion, the body And a first limiting groove for limiting the cushion is formed between the first resisting parts.

Optionally, the cushion includes a first cushion and a second cushion, the first cushion is used to be bitten by the upper row of teeth, and the second cushion is used to be bitten by the lower row of teeth ;

The first soft pad includes a first pad, a second pad and a third pad that are connected in sequence, and a space between the first pad, the second pad and the third pad is formed for placing the upper row of teeth. The first placement slot, the second pad is attached to the body and fixed, the first pad is attached to the first resisting surface, and the first pad is close to the side of the first placement slot a surface for abutting the outer side or upper lip of said upper row of teeth;

The second soft pad includes a fourth pad, a fifth pad, and a sixth pad connected in sequence, and the fourth pad, the fifth pad, and the sixth pad are formed between the fourth pad, the fifth pad, and the sixth pad for placing the lower teeth. The second placement slot, the fifth pad is fitted and fixed to the body, the fourth pad is attached to the second resisting surface, and the fourth pad is close to the side of the second placement slot The surface is used to bear against the outer side of the lower row of teeth or the lower lip.

Optionally, a side edge of the body close to the outlet is provided with a second limiting portion, and the second limiting portion extends in a direction away from the hole.

Optionally, the second resisting portion is located on a side edge of the body close to the inlet, and the second resisting portion extends in a direction away from the hole.

Optionally, along the penetrating direction from the inlet to the outlet, the distance between the first resisting surface and the second resisting surface is d, 3mm≤d≤30mm, and the mouth gag is used to cause the jaw Protrusion to move the soft palate and tongue forward, thereby increasing the opening of the pharynx.

Optionally, the body, the first resisting portion and the second resisting portion are integrally formed.

Optionally, the first resisting portion is located on a side edge of the body close to the inlet, and the first resisting portion extends in a direction away from the hole.

Optionally, the side edge of the first resisting portion away from the hole is provided with a concave surface that is concave toward the hole, and the concave surface is used to avoid the upper lip frenulum.

Optionally, the concave surface includes a first arc surface, a connecting arc surface and a second arc surface arranged in sequence, the first arc surface and the second arc surface are connected by the connecting arc surface, and the connection The arc surface is closer to the tunnel than the first arc surface and the second arc surface.

Optionally, the mouth opener further includes a spatula, and one end of the spatula is connected to the body.

Optionally, the mouth opener further includes a strap and two U-shaped support frames, a fixing portion is provided in the middle of the support frame, both ends of the support frame are connected to the body, and the straps Both ends of the belt are respectively connected to the fixing parts of the two supporting frames.

An embodiment of the present invention also provides a medical device, which includes an endoscope and the above-mentioned oral mouth gag; the endoscope is used to enter the hole through the inlet, and then pass through The mouth enters the oropharyngeal region.

The beneficial effects of the oral mouth opener and medical equipment of the embodiments of the present invention include, for example:

The outer side of the upper teeth or the upper lip of the patient is pushed back by the first resistance, and the second resistance is limited by the outer side or lower lip of the lower teeth, so that the upper and lower jaws are misaligned and prevent the patient's lower teeth from returning to normal Location. During endoscopic examination, the doctor can enter the distal end of the endoscope through the entrance, extend out through the exit and enter the patient's mouth, and then enter the esophagus and other digestive tract lumens along the esophageal entrance. During the whole process of the examination, the patient's pharyngeal tissue was pulled under the action of the first and second resisting surfaces, which can significantly expand the patient's oral cavity and esophageal entrance, while keeping the tongue forward , so as to solve the problem of the patient's tongue drooping. Finally, the patient's upper airway can be kept open, reducing the risk of suffocation of the patient.

In addition, when the patient is unconscious, the second resisting surface can help the doctor avoid the loosening of the main body when the upper and lower jaws of the patient are dislocated, so that the endoscopic examination will not be affected after the main body enters the patient's mouth. At the same time, the patient can freely occlude the upper and lower sides of the body while the upper and lower jaws are misaligned, making the patient feel more comfortable overall while the upper and lower jaws are misaligned. The first resisting surface can effectively limit the upper jaw of the patient by effectively resisting the outer side of the patient's upper row of teeth or the upper lip, thereby improving the efficiency of dislocation of the upper and lower jaws.

The medical device includes the oral mouth opener, which has all the functions of the oral mouth opener.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of the first oral mouth gag provided by this embodiment at a first viewing angle;

Fig. 2 is a schematic structural view of the first oral mouth gag provided by this embodiment under a second viewing angle;

Fig. 3 is the sectional view of A-A direction in Fig. 2;

Fig. 4 is a schematic diagram of the mouth gag in Fig. 3 in use;

Fig. 5 is a schematic structural view of the second oral mouth gag provided by this embodiment at a first viewing angle;

Fig. 6 is a schematic structural view of the second oral mouth gag provided by this embodiment at a second viewing angle;

FIG. 7 is a schematic structural diagram of the strap provided in this embodiment;

Fig. 8 is a schematic diagram of a normal patient using an existing mouth gag;

Fig. 9 is a schematic diagram of a normal patient using the mouth gag in this embodiment;

Fig. 10 is a schematic diagram of using an existing mouth gag for patients with ptosis;

Fig. 11 is a schematic diagram of using the mouth gag in this embodiment by a patient with ptosis;

Fig. 12 is a schematic structural view of the third oral mouth gag provided by this embodiment at a first viewing angle;

Fig. 13 is a schematic structural view of the third type of oral mouth gag provided by this embodiment under a second viewing angle;

Fig. 14 is a schematic diagram of a patient not using an oral mouth gag;

Fig. 15 is a schematic diagram of a patient using an oral mouth gag and an endoscope;

Fig. 16 is a schematic diagram of another patient using an oral mouth gag and an endoscope.

Icons: 100-mouth opener; 101-preset straight line; 10-body; 11-hole; 12-through direction; 13-entrance; 14-exit; 15-first limiting part; 16-first limiting groove ; 17-second limiting part; 18-second limiting groove; 20-first resisting part; 21-first resisting surface; 22-recessed surface; 221-first arc surface; - second arc surface; 30 - second resisting part; 31 - second resisting surface; 40 - cushion; 41 - first cushion; 410 - first placement groove; 411 - first pad; 412 - second pad ;413-the third pad; 42-the second soft pad; 420-the second placement slot; 421-the fourth pad; 422-the fifth pad; 423-the sixth pad; 61-fixation part; 70-bandage; 71-first free end; 72-second free end; 200-upper row of teeth; 300-lower row of teeth; 400-upper lip frenulum; 500-oral cavity; 600-upper lip ; 700 - lower lip; 800 - tongue; 900 - esophageal entrance; 1001 - jaw; 1002 - soft palate; 1003 - tongue; 1004 - pharynx; 1005 - endoscope;

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present invention, it should be noted that if the orientation or positional relationship indicated by the terms "upper", "lower", "inner" and "outer" appear, it is based on the orientation or positional relationship shown in the drawings, or It is the orientation or positional relationship that the invention product is usually placed in use, and it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention.

In addition, terms such as "first" and "second" are used only for distinguishing descriptions, and should not be understood as indicating or implying relative importance.

It should be noted that, in the case of no conflict, the features in the embodiments of the present invention may be combined with each other.

Please refer to FIGS. 1-4 , the first type of mouth mouth opener 100 provided in this embodiment includes a body 10 and a first abutting portion 20 and a second abutting portion 30 disposed on opposite sides of the body 10 . The main body 10 is penetrated with a tunnel 11 , and two ends of the tunnel 11 respectively form an inlet 13 and an outlet 14 .

Referring to FIG. 1 and FIG. 2 , the body 10 is roughly a tubular structure. Specifically, the hole 11 is located at the center of the body 10 . Referring to the relative position in FIG. 2 , the opposite upper side wall and lower side wall of the tunnel 11 are planes, and the distance between them is a. The opposite left side wall and right side wall of the hole 11 are both arc surfaces, and the maximum distance between them is b.

In this embodiment, 14mm≤a≤25mm, specifically, a may be 14mm, 16mm, 18mm, 20mm, 21.5mm, 23.3mm, 23.5mm, 23.8mm, 25mm and so on. 14mm≤b≤26mm. Specifically, the b may be 14mm, 16mm, 18mm, 25mm, 25.3mm, 25.5mm, 25.7mm, 26mm and so on.

In this embodiment, the main body 10 , the first resisting portion 20 and the second resisting portion 30 are integrally formed. Referring to the relative positions in FIGS. 1-4 , the first resisting portion 20 is located on the upper side of the main body 10 , and the second resisting portion 30 is located on the lower side of the main body 10 . The integral molding can make the overall structure more stable. The body 10 , the first resisting portion 20 and the second resisting portion 30 are made of the same material, and are all made of plastic.

Referring to FIG. 4 , when performing an endoscopic examination, the doctor usually asks the patient to bite the body 10 to keep the patient's mouth open. At this time, the patient is under anesthesia. The doctor can enter the distal end of the endoscope 1005 (shown in FIG. 15 ) through the inlet 13, extend through the outlet 14 and enter the patient's oral cavity 500, and then enter the digestive tract and other lumens. That is, the endoscope enters from the front of the main body 10 and protrudes from the rear, where "front" and "rear" correspond to the left and right directions in FIG. 4 .

3 and 4, the first resisting portion 20 has a first resisting surface 21, the second resisting portion 30 has a second resisting surface 31, the first resisting surface 21 is used to resist the outer side or upper lip of the upper row of teeth 200, the second resisting portion Two resisting surfaces 31 are used to resist the outer side or lower lip of the lower row of teeth 300. Along the penetration direction 12 from the inlet 13 to the outlet 14, the first resisting surface 21 is closer to the outlet 14 relative to the second resisting surface 31, so that the upper and lower jaws are displaced. . Referring to the relative positions in FIG. 4 , when the patient’s teeth bite on the body 10 , the upper row of teeth 200 bites on the upper side of the body 10 , and the lower row of teeth 300 bites on the lower side of the body 10 . It can be understood that in this embodiment, when in use, the outlet 14 is relatively close to the oral cavity 500 , the inlet 13 is relatively far away from the oral cavity 500 , the first resisting surface 21 is relatively close to the oral cavity 500 , and the second resisting surface 31 is relatively far away from the oral cavity 500 .

In FIG. 4 , the first resisting surface 21 is used to resist the outer side of the upper row of teeth 200 , and the second resisting surface 31 is used to resist the lower lip 700 . This is equivalent to the fact that the first resisting surface 21 plays a role of pushing back on the upper row of teeth 200 , and the second resisting surface 31 plays a role of limiting the lower lip 700 . As a result, the patient's lower jaw is protruded forward and forms a misaligned bite with the upper jaw, which prevents the patient's lower row of teeth 300 from returning to the normal position, thereby also causing the upper and lower rows of teeth to form a misalignment, and then expands the patient's upper airway, so that the patient's upper airway can be maintained during the examination. unobstructed. This can alleviate the narrowing of the upper airway due to muscle relaxation caused by anesthesia, resulting in hypoxia.

It should be noted that the dislocation of the upper and lower jaws can also be understood as the dislocation of the upper and lower lips, the dislocation of the upper and lower rows of teeth, and the forward movement of the jaw. Through the misalignment, the pharyngeal tissue is pulled under the action of the first resisting surface 21 and the second resisting surface 31 to keep the tongue forward, thereby solving the problems of esophageal stenosis and tongue drooping in patients under anesthesia.

Specifically, referring to FIG. 4 , this embodiment is introduced by taking the first abutting surface 21 abutting the outer side of the upper row of teeth 200 and the second abutting surface 31 abutting the outer side of the lower lip 700 as an example.

Of course, in specific use, it may also be that the first abutting surface 21 (in this case, the right side of the first abutting portion 20 in FIG. 4 ) abuts against the outer side of the upper lip 600 . Alternatively, the first abutting surface 21 (in this case, the left side of the first abutting portion 20 in FIG. 4 ) abuts against the inner side of the upper lip 600 .

In specific use, it may also be that the second resisting surface 31 (in this case, the right side of the second resisting portion 30 in FIG. 4 ) resists the outer side of the lower row of teeth 300 . Alternatively, the second abutting surface 31 (in this case, the left side of the second abutting portion 30 in FIG. 4 ) abuts the inner side of the lower lip 700 .

It should be noted that the above-mentioned "outside" and "inside" correspond to the left-right direction in FIG. 4 .

Referring to FIG. 4 , the direction indicated by the arrow below the body 10 in FIG. 4 is the direction in which the patient's lower jaw protrudes forward when the patient bites the body 10 . The lower row of teeth 300 shown in dotted line in Fig. 4 is in the position when it is not misaligned, and it is roughly flush with the upper row of teeth 200, and the lower row of teeth 300 shown in solid line in Fig. 200 misaligned teeth. After dislocation, the patient's oral cavity 500 and esophageal entrance 900 become significantly larger, which is also convenient for doctors to perform endoscopic operations.

Combining Fig. 8 and Fig. 9, Fig. 8 is a schematic diagram of a normal patient using the existing oral mouth gag, and Fig. 9 is a schematic diagram of a normal patient using the oral mouth gag 100 in this embodiment. It can be seen that the use of the oral mouth gag in this embodiment The gag 100 can significantly enlarge the patient's oral cavity 500 , and at the same time can lift the pharyngeal tissue, thereby expanding the esophageal entrance 900 .

Combining Fig. 10 and Fig. 11, Fig. 10 is a schematic diagram of using an existing oral mouth gag for a patient with ptosis, and Fig. 11 is a schematic diagram of using the oral gag 100 in this embodiment for a patient with ptosis. It can be seen that when the patient develops a tongue When the 800 is drooping, by using the mouth gag 100 in this embodiment, the patient's oral cavity 500 can also be significantly enlarged, and at the same time, the pharyngeal tissue can be lifted, thereby enlarging the esophageal entrance 900 .

Referring to FIG. 3 , along the penetration direction 12 from the inlet 13 to the outlet 14 , the distance between the first abutting surface 21 and the second abutting surface 31 is d, 3mm≤d≤30mm. Specifically, the d may be 3mm, 10mm, 19mm, 25mm, 30mm and so on. The mouth gag 100 is used to cause the lower jaw 1001 (shown in FIG. 14 ) to protrude so that the soft palate 1002 (shown in FIG. 14 ) and the tongue 1003 (shown in FIG. 14 ) move forward, thereby increasing the pharynx 1004 (shown in FIG. 14 ). Shown) the degree of opening.

Generally, d here is related to the above-mentioned a. For example, when a is selected with a larger size (23.5mm), d is selected with a smaller size (19mm), which can also have a better effect. When a chooses a smaller size (18mm, 20mm, etc.), if d still chooses a small size (19mm), the effect may not be obvious. Therefore, during specific manufacturing, the corresponding d value can be designed according to different models (with different a values).

In conjunction with FIG. 4 , with such size settings, when the patient bites the body 10 and the outer side of the upper row of teeth 200 abuts against the first abutment surface 21, and the outer side of the lower lip 700 abuts against the second abutment surface 31, the upper row of teeth The distance between the outside of 200 and the outside of lower lip 700 is d.

It should be noted that, based on the relative position in FIG. 4 , the left part of the upper row of teeth 200 is its outer side, and the left part of the lower lip 700 is its outer side. It can also be understood that the outside here is relative to the oral cavity 500, the outer side of the upper row of teeth 200 is farther away from the oral cavity 500 than the inner side of the upper row of teeth 200, and the outer side of the lower lip 700 is farther away from the oral cavity 500 than the inner side of the lower lip 700. .

1-4, the mouth mouth opener 100 also includes a soft pad 40, which is arranged on the side of the body 10 away from the hole 11, and the soft pad 40 is used to be occluded by the upper row of teeth 200 and/or the lower row of teeth 300 .

The soft pad 40 can be made of TPU material (a type of polymer material between rubber and plastic, named thermoplastic polyurethane elastomer rubber). In this way, after the patient bites on the main body 10, the upper and lower rows of teeth directly act on the cushion 40. The cushion 40 can reduce the damage to the patient and relieve the anxiety of the patient.

The cushion 40 can only be arranged on the area where the upper row of teeth 200 occlude, so that it can only be occluded by the upper row of teeth 200 . Alternatively, the soft pad 40 can only be arranged in the area where the lower teeth 300 occlude, so that only the lower teeth 300 can occlude. Alternatively, the area where the upper teeth 200 and the lower teeth 300 occlude are provided with soft pads 40 , so that the upper teeth 200 and the lower teeth 300 can be engaged simultaneously.

Referring to FIG. 1 , the soft pad 40 is ring-shaped, and the soft pad 40 is sheathed on the body 10 , and the soft pad 40 is used to be engaged by the upper row of teeth 200 and the lower row of teeth 300 at the same time.

The soft pad 40 can be relatively fixed to the main body 10 by nesting. Of course, the soft pad 40 can also be fixed on the main body 10 by bonding.

The cushion 40 is ring-shaped, and after it is sleeved on the body 10, the area of the cushion 40 corresponding to the occlusion of the upper row of teeth 200 is occluded by the upper row of teeth 200, and the area of the cushion 40 corresponding to the occlusion of the lower row of teeth 300 is occluded by the lower row of teeth 300. bite. In this way, the cushion 40 can be bitten by the upper row of teeth 200 and the lower row of teeth 300 at the same time.

It should be noted that, in other embodiments, the soft pad 40 may not be ring-shaped, but two independent soft pads 40, and one of the independent soft pads 40 is bonded to the area corresponding to the occlusion of the upper row of teeth 200 on the body 10. Pad 40 for being occluded by upper teeth 200 only. The area of the body 10 corresponding to the occlusion of the lower row of teeth 300 is bonded with an independent cushion 40 for being only occlused by the lower row of teeth 300 .

Referring to FIG. 3 , in this embodiment, the side edge of the main body 10 close to the outlet 14 is provided with a first limiting portion 15 , and the first limiting portion 15 extends in a direction away from the tunnel 11 . The first limiting portion 15 and the main body 10 And a first limiting slot 16 for limiting the cushion 40 is formed between the first resisting portions 20 .

Referring to the relative position in FIG. 3 , the right side of the first abutting portion 20 (the first abutting surface 21 ), the left side of the first limiting portion 15 and the upper side of the main body 10 respectively form the first limiting groove 16 The two opposite groove walls and the groove bottom. The cushion 40 on the upper side of the main body 10 is accommodated in the first limiting groove 16 and is limited by the first limiting groove 16 to prevent the soft cushion 40 on the upper side of the main body 10 from falling off.

The upper end surface of the cushion 40 is flush with the upper end surface of the first limiting portion 15 . In other embodiments, the upper end surface of the cushion 40 may also be higher or lower than the upper end surface of the first limiting portion 15 . Alternatively, the first limiting portion 15 may not be provided, and the cushion 40 is fixed on the main body 10 by gluing.

Referring to FIG. 3 , in this embodiment, the body 10 is provided with a second limiting portion 17 on a side edge close to the outlet 14 , and the second limiting portion 17 extends away from the hole 11 .

It should be noted that the second limiting portion 17 can also limit the inner side of the lower row of teeth 300, and because the second limiting portion 17 resists the inner side of the lower row of teeth 300, the lower row of teeth 300 can be prevented from moving backwards. Sliding can also further prevent the main body 10 from detaching from the patient's oral cavity 500 .

Meanwhile, a second limiting slot 18 for limiting the cushion 40 is formed between the second limiting portion 17 , the main body 10 and the second resisting portion 30 . Referring to the relative position in FIG. 3 , the right side of the second resisting portion 30 (the second resisting surface 31 ), the left side of the second limiting portion 17 and the lower side of the main body 10 respectively form the second limiting groove 18 The two opposite groove walls and the groove bottom. The cushion 40 on the lower side of the main body 10 is accommodated in the second limiting groove 18 and is limited by the second limiting groove 18 to prevent the soft cushion 40 on the lower side of the main body 10 from falling off.

Referring to FIG. 3 , the second resisting portion 30 is located on an edge of the body 10 near the inlet 13 , and the second resisting portion 30 extends away from the hole 11 .

In FIG. 3 , the cushion 40 located on the lower side of the body 10 is completely contained in the second limiting groove 18 .

4, it should be noted that when the patient is in use, the side of the second limiting part 17 close to the second limiting groove 18 (ie, the left side of the second limiting part 17) can also be against the patient's Lower row of teeth 300 inside.

Referring to FIG. 3 , the connecting line between the connection position of the first resisting surface 21 and the body 10 and the connection position of the second resisting surface 31 and the body 10 is a preset straight line 101 (dotted line in FIG. 3 ), and the preset straight line 101 and the penetrating direction 12 There is an included angle h between them, and h<90°.

Specifically, it can also be understood that the connection position between the right side of the first resisting portion 20 (the first resisting surface 21 ) and the groove bottom of the first limiting groove 16 is the same as the right side of the second resisting portion 30 (the second resisting surface 21 ). 31) and the connection position of the groove bottom of the second limiting groove 18 is the dotted line shown in FIG. 3 . The dotted line has an included angle h with the through direction 12 . Specifically, the h is an acute angle.

It can be understood that h is an acute angle, so that along the penetration direction 12 from the inlet 13 to the outlet 14, the first abutting surface 21 is closer to the outlet 14 than the second abutting surface 31, in other words, the first abutting surface 21 is behind , the second resisting surface 31 is in front. Referring to FIG. 4 , such an arrangement enables the outer side of the upper row of teeth 200 of the patient to abut against the first abutment surface 21 after the patient bites the body 10 , and the outer side of the lower lip 700 abuts against the second abutment surface 31 , thereby misaligning the upper and lower jaws. .

It should be noted that when h is a right angle, that is, the first resisting surface 21 and the second resisting surface 31 are parallel in the penetrating direction 12 .

Referring to FIG. 3 and FIG. 4 , in this embodiment, the first resisting portion 20 is located on a side edge of the body 10 close to the inlet 13 , and the first resisting portion 20 extends away from the hole 11 .

The length of the cushion 40 distributed on the upper side of the main body 10 along the penetrating direction 12 is the same as the groove width of the first limiting groove 16, and the length of the cushion 40 distributed on the lower side of the main body 10 along the penetrating direction 12 is the same as that of the second limiting groove 18. The groove width is the same.

The cushion 40 is set on the body 10, and the cushion 40 distributed on the upper side of the body 10 is accommodated in the first limiting groove 16, where the cushion 40 and the two groove walls opposite to the first limiting groove 16 closely fit . The cushion 40 distributed on the lower side of the main body 10 is accommodated in the second limiting groove 18 , where the cushion 40 is in close contact with the two opposite groove walls of the second limiting groove 18 .

Please refer to Figure 5 and Figure 6 in combination with Figure 4. Fig. 5 and Fig. 6 show the second type of mouth mouth opener 100 provided in this embodiment, which is mostly the same in structure as the first type of mouth mouth opener 100 shown in Fig. 1-Fig. 4, except that: In the second type of mouth opener 100 , the edge of the first resisting portion 20 away from the hole 11 is provided with a concave surface 22 that is concave toward the hole 11 , and the concave surface 22 is used to avoid the upper lip frenulum 400 .

The upper lip frenulum 400 is located between the upper row of teeth 200 and the upper lip 600 . When the outer side of the upper row of teeth 200 of the patient is against the first abutment surface 21, and the first abutment portion 20 is located between the upper lip 600 and the upper row of teeth 200, the concave surface 22 can effectively avoid the upper lip frenulum 400, so that It is not easy to cause adverse feelings to patients, and the patient experience is better.

Referring to Fig. 5, specifically, the concave surface 22 includes a first arc surface 221, a connecting arc surface 222 and a second arc surface 223 arranged in sequence, the first arc surface 221 and the second arc surface 223 are connected through the connecting arc surface 222, and the connection The arc surface 222 is closer to the tunnel 11 than the first arc surface 221 and the second arc surface 223 .

It can be understood that the concave surface 22 is roughly V-shaped, with an arc transition at the tip of the V-shape. This shape is more suitable for the upper lip tie 400 . It should be noted that, in other embodiments, the concave surface 22 may also be U-shaped.

Referring to FIG. 5 and FIG. 6 , in this embodiment, the mouth mouth opener 100 further includes a spatula 50 , and one end of the spatula 50 is connected to the body 10 .

In this embodiment, the spatula 50 is an arc-shaped structure, the upper surface of the spatula 50 is an arc surface, the lower side wall of the hole 11 is a plane, and the connection between the spatula 50 and the body 10, the arc surface and the The plane is tangent, which can also be understood as a smooth transition between the body 10 and the tongue depressor 50 . Specifically, the tongue depressor 50 is integrally formed with the body 10 .

It should be noted that patients often have tongue backwards due to anesthesia, which may obstruct the upper airway and lead to hypoxia. By providing the spatula 50, when the patient uses it, the lower surface of the spatula 50 presses the upper surface of the patient's tongue, thereby fixing the patient's tongue. It can prevent the patient's tongue from curling and loosening during the examination, which will cause inconvenience to the doctor's operation of the endoscope, and at the same time, it can avoid the occurrence of hypoxia.

Referring to Fig. 1, Fig. 2, Fig. 5 and Fig. 7, in this embodiment, the oral mouth opener 100 also includes a strap 70 and two U-shaped support frames 60, the middle part of the support frame 60 is provided with a fixing part 61, and the support frame Both ends of the strap 60 are connected to the body 10 , and both ends of the strap 70 are respectively connected to the fixing portions 61 of the two supporting frames 60 .

Specifically, the first free end 71 of the strap 70 is connected and fixed to the fixing portion 61 of one of the supporting frames 60 , and the second free end 72 of the strap 70 is connected and fixed to the fixing portion 61 of the other supporting frame 60 . The fixing part 61 is T-shaped, which is convenient for the installation of the strap 70. It can be understood that a hollow area is formed between the U-shaped support frame 60 and the body 10, which can expose the patient's lips, and can also play a role in reducing the risk of injury. heavy role.

It should be noted that, specifically, both ends of the U-shaped support frame 60 are respectively connected to the first resisting portion 20 and the second resisting portion 30 . In this embodiment, the supporting frame 60 , the fixing portion 61 , the first resisting portion 20 and the second resisting portion 30 are integrally formed. The strap can choose Velcro strap.

The support frame 60 has a roughly arc-shaped structure. After connecting the strap 70, the strap 70 can be placed on the patient's head or neck during use. The strap 70 can firmly fix the main body 10 in the patient's mouth, which is not easy to loosen and can avoid The mouth gag 100 falls off. At the same time, it allows doctors to perform endoscopic operations for a longer period of time.

Please refer to Figure 12 and Figure 13 in combination with Figure 4. Fig. 12 and Fig. 13 show the third type of oral mouth opener 100 provided in this embodiment, which has mostly the same structure as the first type of oral mouth opener 100 shown in Fig. 1-Fig. 4, except that: In the third type of mouth opener 100, the soft pad 40 includes a first soft pad 41 and a second soft pad 42, the first soft pad 41 is used to be bitten by the upper row of teeth 200, and the second soft pad 42 is used to be bitten by the lower row of teeth 300 bites.

It should be noted that the number of cushions 40 shown in Figures 12 and 13 is two, respectively the first cushion 41 and the second cushion 42, the first cushion 41 is arranged on the upper side of the body 10, the second Two cushions 42 are disposed on the lower side of the main body 10 , and the two cushions are independently engaged by the upper row of teeth 200 and the lower row of teeth 300 .

Specifically, the first soft pad 41 includes a first pad 411, a second pad 412, and a third pad 413 connected in sequence, and the first pad 411, the second pad 412, and the third pad 413 are formed between the first pad 411, the second pad 412, and the third pad 413 for placing the upper teeth. 200, the first placement slot 410, the second pad 412 is attached to the body 10, the first pad 411 is attached to the first resisting surface 21, and the side surface of the first pad 411 close to the first placement slot 410 is used to resist Outer side of the upper row of teeth 200 or the upper lip 600 . The first soft pad 41 is roughly a U-shaped structure, the first pad 411, the second pad 412 and the third pad 413 are integrally formed, the second pad 412 is glued and fixed on the upper side of the body 10, and the first pad 411 can also be glued and fixed on the on the first resisting surface 21 . In use, in one mode, the upper row of teeth 200 is accommodated in the first placement groove 410 and engaged with the second pad 412 , and the outer side of the upper row of teeth 200 is against one side surface of the first pad 411 . That is, the upper row of teeth 200 is resisted by the first resisting surface 21 by abutting against the first pad 411 . The existence of the third pad 413 can prevent the main body 10 from falling off relative to the upper row of teeth 200 during use. The materials of the first pad 411 and the second pad 412 are both elastic, and the patients are more comfortable to use.

The second soft pad 42 includes a fourth pad 421, a fifth pad 422 and a sixth pad 423 connected in sequence, and the fourth pad 421, the fifth pad 422 and the sixth pad 423 form the first pad for placing the lower row of teeth 300. Two placement slots 420, the fifth pad 422 fits and fixes with the body 10, the fourth pad 421 fits with the second resisting surface 31, and the side surface of the fourth pad 421 close to the second placement slot 420 is used to resist the lower row of teeth 300 for the outside or 700 for the lower lip. The second soft pad 42 is roughly a U-shaped structure, the fourth pad 421, the fifth pad 422 and the sixth pad 423 are integrally formed, the fifth pad 422 is glued and fixed on the lower side of the body 10, and the fourth pad 421 can also be glued and fixed on the on the second resisting surface 31 . In use, in one way, the lower row of teeth 300 is accommodated in the second placement groove 420 and engaged on the fifth pad 422 , and the outer side of the lower row of teeth 300 is against one side surface of the fourth pad 421 . That is, the lower row of teeth 300 can be resisted by the second resisting surface 31 by resisting against the fourth pad 421 . The existence of the sixth pad 423 can prevent the main body 10 from coming off relative to the lower row of teeth 300 during use. The materials of the fourth pad 421 and the fifth pad 422 are both elastic, and the patients are more comfortable to use.

It should be noted that the above-mentioned main body 10, the first limiting part 15, the second limiting part 17, the first resisting part 20, the second resisting part 30, the tongue depressor 50, the support frame 60 and the fixing part 61 are integrated forming. The integrated molding here can be understood as the molding of the same material through a mold or 3D printing technology, so that the structure is an integrally formed part, the structure is more stable, and the overall service life is longer.

It should be noted that the above-mentioned first limiting portion 15, second limiting portion 17, first resisting portion 20 and second resisting portion 30 all extend in a direction away from the tunnel 11. In this embodiment, vertical The direction extends, ie the direction of extension is perpendicular to the through direction 12 . In this embodiment, the first limiting portion 15 , the second limiting portion 17 , the first resisting portion 20 and the second resisting portion 30 are all located on the outside of the body 10 , where the outside refers to a side of the body 10 away from the hole 11 . side. Of course, in other embodiments, the extending direction is allowed to be inclined at a certain angle to the penetrating direction 12 .

According to an oral mouth opener 100 provided in this embodiment, the working principle of the oral mouth opener 100 is as follows:

When working, first put the main body 10 into the mouth of an anesthetized patient, and make sure that the outer side of the upper row of teeth 200 of the patient is against the first abutment surface 21, the outer side of the lower lip 700 is against the second abutment surface 31, and the lower surface of the tongue depressor 50 is Make full contact with the upper surface of the patient's tongue and press the tongue, then fix it around the patient's head with a bandage 70 .

During endoscopic examination, the patient's pharyngeal muscles will be in a relaxed state due to anesthesia, causing tissue to block the upper airway, and there is a certain risk. The upper row of teeth 200 is pushed back by the first abutment surface 21 , and the second abutment surface 31 limits the position of the lower lip 700 , so that the upper and lower jaws are dislocated, and prevent the patient's lower row of teeth 300 from returning to a normal position. In this way, the patient's pharyngeal tissue will be pulled by force, so that the patient's upper airway can be kept unobstructed, and the risk of suffocation of the patient can be reduced.

When the patient undergoes clinical endoscopy, the patient's upper airway can be expanded through the main body 10 to prevent the danger of upper airway blockage, and the patient's tongue can be fixed by the tongue depressor 50. The main body 10 can be firmly fixed in the patient's mouth and is not easy to slip off , greatly reducing the clinical risk of patients, making it more convenient for doctors to operate, and effectively improving the efficiency of endoscopic examination and treatment.

It should be noted that when a patient suffers from obstructive sleep apnea (OSAS for short), doctors generally encourage the patient to lose weight and recommend continuous positive airway pressure (CPAP) as a For those who have adverse reactions to CPAP treatment, the above-mentioned mouth gag 100 can also be used to assist the patient to maintain the shape of the mouth.

In this way, the mouth gag 100 can not only provide the patient with an open mouth shape during the examination, provide an oxygen delivery/carbon dioxide exhaust channel, but also prevent the tongue from falling back and oppressing the upper airway, and the mouth gag 100 is more stable in the patient's mouth . Therefore, the use of the mouth mouth opener 100 can effectively reduce the possible risks of the patient when being examined.

Please refer to FIGS. 14-16 , this embodiment also provides a medical device, which includes an endoscope 1005 and the above-mentioned oral mouth gag 100; After protruding, it passes through the oral cavity 500 and enters the oropharyngeal region 1006 .

The patient in Fig. 14 is not using the mouth gag 100, but once the mouth gag 100 is used, the mouth gag 100 will cause the lower jaw 1001 to protrude so that the soft palate 1002 and tongue 1003 move forward, thereby increasing the pharynx 1004 the opening degree. "Front" here refers to the left direction in Fig. 14 .

In summary, the embodiment of the present invention provides an oral mouth gag 100 and a medical device. The outer side of the upper row of teeth 200 or the upper lip 600 of the patient is pushed back by the first abutment surface 21, and the second abutment surface 31 is opposite to the upper lip 600. The outer side of the lower row of teeth 300 or the lower lip 700 restricts the position of the upper and lower jaws and prevents the patient's lower row of teeth 300 from returning to a normal position. During endoscopic examination, the doctor can enter the distal end of the endoscope through the entrance 13 , extend through the exit 14 and enter the patient's oral cavity 500 , and then enter the esophagus and other digestive tract lumens along the esophageal entrance 900 . During the whole inspection process, the patient's pharyngeal tissue is always pulled by force under the action of the first resisting surface 21 and the second resisting surface 31, which can significantly expand the patient's oral cavity and esophagus entrance, and at the same time Keep the tongue forward so that the patient's tongue drooping problem can be solved. Finally, the upper airway of the patient is kept unobstructed, and the risk of suffocation of the patient is reduced.

In addition, when the patient is unconscious, the second resisting surface 31 can help the doctor prevent the main body 10 from loosening when the upper and lower jaws of the patient are misaligned, so that the main body 10 will not affect the endoscopic examination after entering the patient's oral cavity 500 . At the same time, the patient can freely occlude the upper and lower sides of the main body 10 while the upper and lower jaws are misaligned, which makes the patient feel more comfortable as a whole while the upper and lower jaws are misaligned. The first resisting surface 21 can effectively limit the position of the patient's upper jaw by effectively resisting the outside of the patient's upper row of teeth 200 or the upper lip 600 , improving the efficiency of dislocation of the upper and lower jaws.

The medical device includes the oral mouth opener 100 , which has all the functions of the oral mouth opener 100 .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1. An oral cavity mouth gag is characterized by comprising a body, a first resisting part and a second resisting part, wherein the first resisting part and the second resisting part are arranged on two opposite sides of the body;

the body is provided with a pore passage in a penetrating way, and an inlet and an outlet are formed at two ends of the pore passage respectively;

the first resisting part is provided with a first resisting surface, the second resisting part is provided with a second resisting surface, the first resisting surface is used for resisting the outer side or the upper lip of the upper row of teeth, the second resisting surface is used for resisting the outer side or the lower lip of the lower row of teeth, and the first resisting surface is close to the outlet relative to the second resisting surface along the penetrating direction from the inlet to the outlet so as to enable the upper jaw and the lower jaw to be staggered.

2. The oral opener of claim 1, further comprising a cushion disposed on a side of the body distal from the tunnel, the cushion for engagement by the upper row of teeth and/or the lower row of teeth.

3. The oral cavity opener of claim 2, wherein the cushion is ring-shaped, the cushion fitting over the body, the cushion for simultaneous occlusion by the upper and lower rows of teeth.

4. The oral cavity opener according to claim 3, wherein a side edge of the body near the outlet is provided with a first limiting portion extending in a direction away from the duct, and a first limiting groove for limiting the cushion is formed among the first limiting portion, the body and the first resisting portion.

5. The oral cavity opener of claim 2, wherein the cushion comprises a first cushion for being engaged by the upper row of teeth and a second cushion for being engaged by the lower row of teeth;

the first soft pad comprises a first pad, a second pad and a third pad which are sequentially connected, a first placing groove for placing the upper row of teeth is formed among the first pad, the second pad and the third pad, the second pad is fixedly attached to the body, the first pad is attached to the first blocking surface, and one side surface, close to the first placing groove, of the first pad is used for blocking the outer side or the upper lip of the upper row of teeth;

the second cushion comprises a fourth cushion, a fifth cushion and a sixth cushion which are sequentially connected, the fourth cushion is used for placing the second placing groove for the lower row of teeth formed between the fifth cushion and the sixth cushion, the fifth cushion is fixedly attached to the body, the fourth cushion is attached to the second blocking face, and one side surface of the fourth cushion, which is close to the second placing groove, is used for blocking the outer side or the lower lip of the lower row of teeth.

6. The oral cavity opener of claim 1, wherein a side edge of the body adjacent the outlet is provided with a second stop portion extending in a direction away from the aperture.

7. The oral cavity opener according to any one of claims 1 to 6, wherein the second abutment is located at a side edge of the body adjacent to the inlet, and the second abutment extends in a direction away from the aperture.

8. The oral cavity opener according to any one of claims 1 to 6, wherein the distance between the first and second abutment surfaces in the direction of penetration of the inlet to the outlet is d, 3mm ≦ d ≦ 30mm, the oral cavity opener being adapted to cause the mandible to be extended forward to move the soft palate and tongue forward to increase the opening of the pharynx.

9. The oral cavity opener of any one of claims 1-6, wherein the body, the first abutment, and the second abutment are integrally formed.

10. The oral cavity opener according to any one of claims 1 to 6, wherein the first abutment is located at a side edge of the body adjacent to the inlet, and the first abutment extends in a direction away from the aperture.

11. The oral cavity opener according to claim 10, wherein a side edge of the first resisting portion away from the duct is provided with a concave surface concave toward the duct, and the concave surface is used for avoiding upper labial frenulum.

12. The oral cavity opener of claim 11, wherein the recessed surface comprises a first arc surface, a connecting arc surface, and a second arc surface in sequence, the first arc surface and the second arc surface being connected by the connecting arc surface, the connecting arc surface being proximate to the orifice relative to the first arc surface and the second arc surface.

13. The oral opener of any one of claims 1-6, further comprising a tongue depressor, one end of which is connected to the body.

14. The oral cavity opener according to any one of claims 1 to 6, further comprising a strap and two U-shaped supports, wherein the middle of the supports is provided with a fixing portion, both ends of the supports are connected to the body, and both ends of the strap are connected to the fixing portions of the two supports, respectively.

15. A medical device comprising an endoscope and an oral opener of any one of claims 1-14; the endoscope is adapted to enter the tunnel through the entrance and exit the exit port and then to enter the oropharyngeal region through the oral cavity.