CN216702662U - Bite block for assisting ultrasonic imaging of esophagus and ultrasonic imaging system of esophagus - Google Patents

Abstract

The utility model relates to the technical field of medical supports, and provides a bite block for assisting ultrasonic imaging of an esophagus and an ultrasonic imaging system of the esophagus. The bite-block of this application embodiment adopts the fixed stomach gas suction pipe of mounting to last the mode of inhaling the intraductal gas of esophagus, when utilizing ultrasonic probe formation of image, stomach gas suction pipe can last to absorb the discharge to the gas that the esophagus was kept somewhere to make ultrasonic probe and heart laminating inseparabler, improve the imaging quality, avoided setting up multiple auxiliary structure on the ultrasonic probe and probably caused the problem of patient's esophagus damage.

Description

Bite block for assisting ultrasonic imaging of esophagus and ultrasonic imaging system of esophagus

Technical Field

The utility model relates to the technical field of medical stents, and particularly provides a bite block for assisting ultrasonic imaging of an esophagus and an ultrasonic imaging system of the esophagus.

Background

In most cardiovascular surgery, physicians often use transesophageal echocardiography (TEE). Transesophageal echocardiography can evaluate the function of each ventricle and valve during surgery, detect other structural and functional abnormalities of the heart, check for air residuals, etc., and provide very valuable information for surgeons and anesthesiologists. In clinical practice, the quality of ultrasonic imaging of the esophagus is obviously affected by the presence of gas in the stomach and the esophagus, and firstly, gas imaging interference is directly generated on an image; secondly, the joint of the probe and the front wall of the esophagus causes imaging blurring, and patients with the imaging blurring can be obviously improved after thoracotomy and even opening of the pericardium. The method is particularly important for non-thoracotomy minimally invasive surgeries such as percutaneous mitral valve repair/clamping surgery under non-extracorporeal circulation, transthoracic tricuspid valve replacement or other right heart system minimally invasive surgeries, and the surgeries have great dependence on the guidance of transesophageal echocardiography, so that the surgery can be accurately guided only by improving the quality of continuous 3D transesophageal echocardiography real-time imaging, and the patient can benefit from the clinic to the maximum extent.

The currently adopted method for improving the ultrasonic imaging of the esophagus mainly comprises the steps of arranging auxiliary structures such as a supporting element and a sucker on the ultrasonic probe of the esophagus to extrude a rotary crystal of the ultrasonic probe of the esophagus to contact with the stomach wall, and plugging the esophagus of a patient by using a plugging element so as to improve the definition of images and improve the ultrasonic imaging quality. However, the movement of the ultrasonic probe is limited by the method, and the probe cannot be freely and completely adjusted front, back, left and right, so that the use of the ultrasonic probe is influenced; meanwhile, the insertion and long-term retention of the auxiliary structure can cause great damage to the esophagus of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bite block for assisting esophagus ultrasonic imaging and an esophagus ultrasonic imaging system, aiming at improving the quality of ultrasonic imaging of transesophageal echocardiography on the premise of not damaging the esophagus of a patient.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

first aspect, this application embodiment provides a bite-block for assisting esophagus ultrasonic imaging for the setting is in patient's oral cavity and supplementary stretches into ultrasonic probe and stomach gas suction tube, and the bite-block includes the bite-block main part, offers the passageway that supplies ultrasonic probe to wear to establish in the bite-block main part, still is provided with the mounting that is used for fixed stomach gas suction tube in the bite-block main part.

The beneficial effects of the embodiment of the application are as follows: according to the bite block for assisting ultrasonic imaging of the esophagus, a patient can hold the bite block main body in the oral cavity, and the ultrasonic probe extends into the esophagus of the patient from the outside through the channel on the bite block main body; meanwhile, the stomach gas suction tube is fixed on the bite block main body through the fixing piece, so that when the ultrasonic probe is used for imaging, the stomach gas suction tube can continuously suck and discharge gas reserved in the esophagus, the ultrasonic probe is tightly attached to the heart, and the imaging quality is improved; because the stomach air suction tube is fixed on the bite-block main body through the fixing piece, when the position of the ultrasonic probe is adjusted, the stomach air suction tube does not affect the continuous work. The bite-block of this application embodiment adopts the fixed stomach gas suction tube of mounting to last the mode of inhaling the intraductal gas of esophagus, has avoided setting up multiple auxiliary structure on the ultrasonic probe and probably causes the problem of patient's esophagus damage.

In one embodiment, the fixing part comprises a buckle structure and a limiting structure, the limiting structure is arranged on the bite block main body, one end of the buckle structure is arranged on the bite block main body, and the other end of the buckle structure is clamped on the limiting structure; the buckle structure is wound to form a fixing space for fixing the gastric gas suction tube; or the buckle structure is enclosed in the limiting structure and forms a fixing space for fixing the gastric gas suction tube.

Through adopting foretell technical scheme, it installs the stomach gas suction pipe to coil through buckle structure and form fixed space for the stomach gas suction pipe wears to locate fixed space and realizes fixed mounting.

In one embodiment, the buckle structure is provided with a non-return part, the limiting structure is provided with an abutting part matched with the non-return part, and the non-return part abuts against the abutting part when the buckle structure is wound to form a ring-shaped structure for fixing the gastric gas suction tube.

Through adopting foretell technical scheme, buckle structure fixes the stomach gas suction tube through convoluteing, and the non return portion butt of joint structure holds on limit structure's the portion of holding to make buckle structure keep the state of convoluteing.

In one embodiment, the number of the check portions is plural, and each check portion is disposed in a direction away from the bite block main body.

Through adopting foretell technical scheme, through setting up a plurality of non return portions along the direction of keeping away from the bite-block main part, buckle structure can form the not annular structure of equidimension according to the stomach gas suction tube coiling of different models to will correspond a non return portion butt in support hold the portion can, realized that buckle structure's coiling size is adjustable, be applicable to the stomach gas suction tube of multiple model.

In one embodiment, the limiting structure is provided with a clamping groove matched with the buckle structure, the buckle structure is clamped in the clamping groove, and the limiting structure is enclosed to form a fixed space.

Through adopting foretell technical scheme, through buckling deformation and the card with buckle structure and establishing into the joint inslot, buckle structure and limit structure enclose to close and form fixed space.

In one embodiment, the fixing piece comprises a buckling structure, one end of the buckling structure, which is far away from the bite block main body, is wound towards the other end to form a ring structure for fixing the gastric aspiration tube, and the buckling structure has elasticity.

By adopting the technical scheme, the stomach gas suction tube is installed by utilizing the annular structure formed by winding the buckle structure per se, and during installation, the stomach gas suction tube is only required to be broken off according to the elasticity of the buckle structure so as to be put in, and then the elastic structure is loosened so as to be restored according to the elasticity of the elastic structure per se.

In one embodiment, the fixing member includes a first receiving structure and a second receiving structure, the first receiving structure and the second receiving structure enclose to form a receiving space for fixing the gastric gas suction tube, one end of the first receiving structure and one end of the second receiving structure are both disposed on the bite block body, and the other end of the first receiving structure and the other end of the second receiving structure abut against each other and have elasticity.

Through adopting foretell technical scheme, utilize first holding structure and second holding structure to enclose mutually and close and form the accommodation space, during the installation, only need with buckle structure along insert the accommodation space between first holding structure and the second holding structure can, buckle structure sets up in the accommodation space and realizes spacing fixed to the stomach gas suction tube.

In one embodiment, the fixing member is provided with an installation groove for accommodating the gastric gas suction tube, and the fixing member is also detachably provided with an installation bracket for covering the installation groove.

Through adopting foretell technical scheme, stomach gas suction tube can directly set up in the mounting groove, then directly cover through the installation and locate the mounting groove in order to fix stomach gas suction tube can.

In one embodiment, the bite block body includes a first end portion, a second end portion, and an intermediate connection portion formed between the first end portion and the second end portion, the passage sequentially penetrates the first end portion, the intermediate connection portion, and the second end portion and communicates with the outside, and the fixing member is disposed on a surface of the intermediate connection portion.

Through adopting foretell technical scheme, the bite-block main part is arranged in placing patient's oral cavity, and first end and second end are towards the outside in oral cavity and towards the esophagus direction respectively, and the surface of intermediate junction portion is located to the mounting to make stomach gas suction tube install on the mid portion of bite-block main part.

In a second aspect, the present application further provides an esophageal ultrasound imaging system, which includes an ultrasound probe and a gastric aspiration tube, the esophageal ultrasound imaging system further includes a bite block for assisting esophageal ultrasound imaging as described above, the ultrasound probe is inserted into the bite block, and the gastric aspiration tube is disposed on the bite block.

The beneficial effects of the embodiment of the application are as follows: the utility model provides an esophagus ultrasonic imaging system, through adopting foretell bite-block, ultrasonic probe can wear to locate the through-hole of bite-block main part and stretch into the esophagus, and stomach air suction tube can fixed mounting on the bite-block main part when stretching into the esophagus simultaneously, has improved ultrasonic imaging quality effectively and has not hurt patient's esophagus.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an esophageal ultrasound imaging system according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a bite block according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic side view of a second fixing element according to an embodiment of the present invention;

FIG. 5 is a front view of a second fastener assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a third fastener provided in accordance with an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a fourth fixing element according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10. a bite block; 11. a bite block body; 111. a channel; 112. a first end portion; 113. a second end portion; 114. An intermediate connecting portion; 12. a fixing member; 121. a buckle structure; 1211. a non-return portion; 122. a limiting structure; 1221. a holding portion; 1222. a clamping groove; 123. a fixed space; 124. a first accommodating structure; 125. a second accommodating structure; 126. an accommodating space; 127. mounting grooves; 13. mounting a bracket; 20. an ultrasonic probe; 30. A gastric gas aspiration tube; 100. an esophageal ultrasound imaging system.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1 to 3, in a first aspect, the present application provides a bite block 10 for assisting esophageal ultrasound imaging, which is used for being disposed in a mouth of a patient and assisting in extending an ultrasound probe 20 and a gastric aspiration tube 30. The bite block 10 comprises a bite block main body 11, a channel 111 for the ultrasonic probe 20 to penetrate through is formed on the bite block main body 11, and the ultrasonic probe 20 extends into the esophagus of a patient from the outside through the channel 111; the bite block main body 11 is further provided with a fixing part 12 for fixing the gastric aspiration tube 30, and the gastric aspiration tube 30 extends into the esophagus of the patient and is fixed on the bite block main body 11, so that gas in the esophagus can be continuously aspirated and the adjustment searchlighting of the ultrasonic probe 20 is not affected.

When ultrasonic imaging of transesophageal echocardiography is performed, firstly, the auxiliary guide wire is put into the gastric aspiration tube 30 under the general anesthesia state of a patient, and then the ultrasonic probe 20 sleeved with the bite block 10 is extended into the esophagus of the patient, so that the bite block 10 is kept in the oral cavity of the patient. The fixing part 12 on the bite-block main body 11 is used for connecting the gastric-qi suction tube 30, and the part of the gastric-qi suction tube 30 which is left in the oral cavity is connected with the fixing part 12, so that the purpose of connecting the gastric-qi suction tube 30 with the bite-block main body 11 is realized. The stomach air suction tube 30 is externally connected with a negative pressure suction device, so that the gas remained in the test tube can be continuously sucked away, the ultrasonic probe 20 is more tightly attached to the heart, and the imaging quality is improved. During the probing process of the ultrasonic probe 20, since the fixing member 12 fixes the position of the gastric gas suction tube 30, the position adjustment of the ultrasonic probe 20 does not affect the continuous suction of the gas in the esophagus by the gastric gas suction tube 30. Wherein, the stomach gas suction tube 30 is put without the assistance of a laryngoscope, and the stomach gas suction tube 30 can be a stomach tube, a sputum suction tube or a tracheal catheter and the like. The bite block 10 of the present application is suitable for cardiac surgery requiring minimally invasive intervention with transesophageal echocardiography two-dimensional and three-dimensional guidance, especially surgery requiring high quality of imaging.

According to the bite block 10 for assisting ultrasonic imaging of the esophagus, provided by the embodiment of the application, a patient can hold the bite block body 11 in the oral cavity, and the ultrasonic probe 20 is extended into the esophagus of the patient from the outside through the channel 111 on the bite block body 11; meanwhile, the stomach gas suction tube 30 is fixed on the bite block main body 11 through the fixing piece 12, so that when the ultrasonic probe 20 is used for imaging, the stomach gas suction tube 30 can continuously suck and discharge gas remained in the esophagus, the ultrasonic probe 20 is attached to the heart more tightly, and the imaging quality is improved; since the gastric gas suction tube 30 is fixed to the bite block body 11 by the fixing member 12, the continuous operation of the gastric gas suction tube 30 is not affected when the position of the ultrasonic probe 20 is adjusted. The bite-block 10 of the embodiment of the present application adopts the fixing member 12 to fix the gastric gas suction tube 30 to continuously suck the gas in the esophagus, thereby avoiding the problem of esophagus injury of the patient caused by the arrangement of various auxiliary structures on the ultrasonic probe 20. In the cardiac surgery, the bite block 10 adopting the embodiment of the application is simple and easy to implement, has high cost benefit, and does not increase the risk of additional surgery; and the fixing member 12 does not cause injury to the patient.

Referring to fig. 1 to 3, in an embodiment, the fixing member 12 includes a fastening structure 121 and a limiting structure 122, the limiting structure 122 is disposed on the bite block main body 11, one end of the fastening structure 121 is disposed on the bite block main body 11, the other end of the fastening structure 121 is fastened to the limiting structure 122, and one end of the fastening structure 121 is fastened to the limiting structure 122 to limit and fix the gastric aspiration tube 30, so as to achieve the purpose of mounting the gastric aspiration tube 30 on the bite block main body 11. In one embodiment of this embodiment, the portion of the gastric gas-suction tube 30 located in the oral cavity is close to the fixing member 12, the snap structure 121 is wound on the gastric gas-suction tube 30 to form a fixing space, so that the gastric gas-suction tube 30 is fixed on the bite block body 11, and the limiting structure 122 is used for limiting the winding state of the snap structure 121 to maintain the fixing state of the snap structure 121 on the gastric gas-suction tube 30. In another embodiment of this embodiment, the portion of the gastric gas suction tube 30 located in the mouth is close to the fixing member 12, and the buckle structure 121 is disposed around the gastric gas suction tube 30 and connected to the position-limiting structure 122, and the buckle structure 121 surrounds the position-limiting structure 122 and forms a fixing space, so as to fix the gastric gas suction tube 30 on the bite block body 11. The buckle structure 121 may be a plate-shaped structure, a rod-shaped structure, a band-shaped structure, etc., and the stomach gas suction tube 30 is bent and wound to surround the buckle structure 121 to realize limiting and fixing.

Referring to fig. 1 to fig. 3, in an embodiment, the buckle structure 121 has a check portion 1211, the limit structure 122 has a holding portion 1221 matching with the check portion 1211, and when the buckle structure 121 is wound around the gastric gas suction tube 30 to limit and fix the gastric gas suction tube 30 on the bite block main body 11, the check portion 1211 of the buckle structure 121 abuts against the holding portion 1221 of the limit structure 122, so that the buckle structure 121 maintains the wound state to continuously fix the gastric gas suction tube 30. After the ultrasonic imaging is completed, the limiting structure 122 can be pulled, so that the abutting part 1221 of the limiting structure 122 leaves the non-return part 1211 of the buckle structure 121, and the buckle structure 121 can be released from the winding state after the non-return part 1211 loses the supporting force, so as to release the gastric gas suction tube 30; when the latch structure 121 has elasticity, the latch structure 121 can be restored to its original shape by the elasticity after the check portion 1211 loses the supporting force, and the gastric aspiration tube 30 is detached from the bite block body 11. The check portion 1211 may be a protrusion structure such as a tooth structure disposed on the buckle structure 121, the limiting portion may be another tooth structure or another protrusion structure engaged with the check portion 1211, and the limiting portion is inserted behind the check portion 1211 of the buckle structure 121 in the winding state to limit the recovery of the check portion 1211, so that the buckle structure 121 is maintained in the current state.

Referring to fig. 1 to 3, in one embodiment, the number of the check portions 1211 is plural, and each check portion 1211 is disposed in a direction away from the bite block body 11. By arranging the plurality of check portions 1211 in the direction away from the bite block body 11, the buckle structure 121 can be wound to form annular structures of different sizes according to different types of the gastric aspiration tubes 30, and one check portion 1211 corresponding to the buckle structure can be abutted against the abutting portion 1221, so that the buckle structure 121 can be wound in an adjustable size and is suitable for various types of the gastric aspiration tubes 30. For example, when the gastric gas suction tube 30 with a larger tube diameter is adopted, the buckle structure 121 is wound around the gastric gas suction tube 30 to form a ring shape with a larger diameter, that is, the winding degree of the buckle structure 121 is smaller, and at this time, the one non-return portion 1211 farther from the bite block main body 11 abuts against the abutting portion 1221; when the gastric-air suction tube 30 with a smaller tube diameter is used, the buckle structure 121 winds around the gastric-air suction tube 30 to form a ring shape with a smaller diameter, that is, the winding degree of the buckle structure 121 is larger, and at this time, the one non-return portion 1211 closer to the bite block main body 11 abuts against the abutting portion 1221.

Referring to fig. 1, fig. 4 to fig. 5, in an embodiment, a clamping groove 1222 adapted to the fastening structure 121 is formed on the position-limiting structure 122, and the fastening structure 121 is fastened in the clamping groove 1222, and encloses the position-limiting structure 122 to form a fixing space 123. Through buckling deformation and the card of buckle structure 121 and establishing into joint groove 1222, buckle structure 121 and limit structure 122 enclose to close and form fixed space 123. The part of the gastric gas suction tube 30 in the oral cavity is close to the fixing piece 12, the buckle structure 121 is bent around the gastric gas suction tube 30 and clamped into the clamping groove 1222, and the gastric gas suction tube 30 is locked into a fixing space 123 formed by the buckle structure 121 and the limiting structure 122 in a surrounding mode. Wherein, buckle structure 121 can be the long strip-shaped lamellar body that has elasticity, buckle structure 121 so that its both sides end inserts in the cell body of joint groove 1222 for buckle structure 121 card is located on joint groove 1222, thereby buckle structure 121 encloses to close in limit structure 122 and with the spacing fixed of stomach gas suction tube 30. When the gastric aspiration tube 30 needs to be unlocked, the buckle structure 121 is bent to move the two side ends out of the buckle groove 1222, so as to unlock the connection with the limiting structure 122.

In one embodiment, the fixing member 12 includes a snap structure, and the snap structure is wound away from one end of the bite block body 11 toward the other end to form a ring structure for fixing the gastric air suction tube 30, and the snap structure has elasticity. The stomach air suction tube 30 is installed by using an annular structure formed by winding the buckle structure per se, and during installation, the stomach air suction tube 30 is placed by only breaking the buckle structure off according to the elasticity of the buckle structure and then releasing the elastic structure to restore the elastic structure according to the elasticity of the buckle structure. Similarly, when the gastric gas suction tube 30 needs to be taken down, the snap structure is broken to take out the gastric gas suction tube.

Referring to fig. 1 and fig. 6, in an embodiment, the fixing member 12 includes a first receiving structure 124 and a second receiving structure 125, the first receiving structure 124 and the second receiving structure 125 enclose to form a receiving space 126 for fixing the gastric gas suction tube 30, one end of the first receiving structure 124 and one end of the second receiving structure 125 are both disposed on the bite block body 11, and the other end of the first receiving structure 124 and the other end of the second receiving structure 125 are both abutted and have elasticity. The first accommodating structure 124 and the second accommodating structure 125 are enclosed to form an accommodating space 126, during installation, the buckle structure 121 is only required to be inserted into the accommodating space 126 along the space between the first accommodating structure 124 and the second accommodating structure 125, and the buckle structure 121 is arranged in the accommodating space 126 and realizes limiting and fixing on the gastric gas suction tube 30.

Referring to fig. 1 and 7, in one embodiment, the fixing member 12 is provided with a mounting groove 127 for receiving the gastric gas suction tube 30, and the fixing member 12 is also detachably provided with a mounting bracket 13 for covering the mounting groove 127. The gastric gas suction tube 30 can be directly disposed in the mounting groove 127, and then directly covered in the mounting groove 127 through the mounting bracket 13 to fix the gastric gas suction tube 30. Wherein, one end of the mounting bracket 13 is hinged to the fixing member 12, thereby realizing that the mounting bracket 13 rotates on the fixing member 12, the mounting bracket 13 rotates to cover the mounting groove 127 to fix the gastric gas suction tube 30, and the mounting bracket 13 rotates to leave the mounting groove 127 to release or mount the gastric gas suction tube 30.

Referring to fig. 1 and 2, in one embodiment, the bite block main body 11 includes a first end portion 112, a second end portion 113 and an intermediate connecting portion 114 formed between the first end portion 112 and the second end portion 113, the channel 111 sequentially penetrates the first end portion 112, the intermediate connecting portion 114 and the second end portion 113 and communicates with the outside, and the fixing member 12 is disposed on a surface of the intermediate connecting portion 114. The bite block body 11 is adapted to be placed in the mouth of a patient with the first and second ends facing the outside of the mouth and towards the esophagus, respectively, and the fixing member 12 is provided on the surface of the intermediate coupling portion 114 such that the gastric suction tube 30 is mounted on the intermediate portion of the bite block body 11.

Referring to fig. 1, in a second aspect, the present application further provides an esophageal ultrasound imaging system 100, which includes an ultrasound probe 20 and a gastric aspiration tube 30, the esophageal ultrasound imaging system 100 further includes a bite block 10 for assisting esophageal ultrasound imaging, the ultrasound probe 20 is disposed through the bite block 10, and the gastric aspiration tube 30 is disposed on the bite block 10. The esophagus ultrasonic imaging system 100 that this application embodiment provided, through adopting foretell bite-block 10, ultrasonic probe 20 can wear to locate the through-hole of bite-block main part 11 and stretch into the esophagus, and stomach air suction tube 30 can fixed mounting on bite-block main part 11 when stretching into the esophagus simultaneously, has improved ultrasonic imaging quality effectively and has not hurt patient's esophagus.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A bite block for assisting ultrasonic imaging of an esophagus, characterized in that: the dental pad comprises a dental pad main body, a channel for the ultrasonic probe to penetrate is formed in the dental pad main body, and a fixing piece for fixing the stomach gas suction tube is further arranged on the dental pad main body.

2. The bite block for assisting ultrasonic imaging of the esophagus of claim 1, wherein: the fixing piece comprises a buckle structure and a limiting structure, the limiting structure is arranged on the bite block main body, one end of the buckle structure is arranged on the bite block main body, and the other end of the buckle structure is clamped on the limiting structure; the buckle structure is wound to form a fixing space for fixing the gastric gas suction tube; or the buckle structure is enclosed in the limiting structure and forms a fixing space for fixing the gastric gas suction tube.

3. The bite block for assisting ultrasonic imaging of the esophagus according to claim 2, wherein: the buckle structure is provided with a non-return part, the limiting structure is provided with a supporting part matched with the non-return part, and the non-return part is abutted against the supporting part when the buckle structure is wound to form an annular structure for fixing the gastric gas suction tube.

4. The bite block for assisting ultrasonic imaging of the esophagus of claim 3, wherein: the quantity of non return portion is a plurality of, and each non return portion sets up along keeping away from the direction of bite-block main part.

5. The bite block for assisting ultrasonic imaging of the esophagus according to claim 2, wherein: the limiting structure is provided with a clamping groove matched with the buckle structure, the buckle structure is clamped in the clamping groove and surrounds the limiting structure to form the fixed space.

6. The bite block for assisting ultrasonic imaging of the esophagus of claim 1, wherein: the fixing piece comprises a buckle structure, one end of the bite block main body, far away from the buckle structure, is coiled towards the other end to form an annular structure used for fixing the stomach air suction tube, and the buckle structure has elasticity.

7. The bite block for assisting ultrasonic imaging of the esophagus of claim 1, wherein: the fixing piece comprises a first accommodating structure and a second accommodating structure, the first accommodating structure and the second accommodating structure are enclosed to form an accommodating space for fixing the stomach air suction tube, one end of the first accommodating structure and one end of the second accommodating structure are both arranged on the bite block main body, and the other end of the first accommodating structure and the other end of the second accommodating structure are in butt joint and have elasticity.

8. The bite block for assisting ultrasonic imaging of the esophagus of claim 1, wherein: the fixing piece is provided with a mounting groove for accommodating the gastric gas suction tube, and the fixing piece is also detachably provided with a mounting bracket for covering the mounting groove.

9. The bite block for assisting ultrasonic imaging of the esophagus of claim 1, wherein: the bite-block main part includes first end portion, second end portion and is formed at intermediate junction portion between first end portion and the second end portion, the passageway runs through in proper order first end portion intermediate junction portion and second end portion and intercommunication are outside, the mounting set up in intermediate junction portion's surface.

10. An esophagus ultrasonic imaging system comprises an ultrasonic probe and a stomach air suction tube, and is characterized in that: the esophageal ultrasound imaging system further comprises the bite block for assisting esophageal ultrasound imaging according to any one of claims 1 to 9, wherein the ultrasound probe is arranged through the bite block, and the gastric gas suction tube is arranged on the bite block.

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