A combined intraoral soft tissue ultrasound probe

Abstract

The present invention provides a combined oral soft tissue ultrasound probe, comprising a probe, a capsule containing a coupling agent is connected to the outer sleeve of the detection end of the probe, a detachable capsule fixing part is connected to the outer sleeve of the capsule, the capsule fixing part is hollow, one end of the capsule fixing part is provided with a first opening for inserting the probe with the capsule connected thereto, and the bottom of the capsule fixing part is provided with a second opening for exposing the capsule. The combined oral soft tissue ultrasound probe provided by the present invention can be close to oral soft tissues such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the lip mucosa, so as to facilitate the examination of the pathological conditions of the oral soft tissues, and there is no need to frequently wipe and disinfect the probe, so as to avoid the wear of the probe and reduce the risk of cross infection to the patient. An artificial sound-transmitting window with a fixed thickness is manufactured to avoid multiple manual adjustments of the thickness of the sound window during the examination process, thereby increasing the clarity of the ultrasound image and improving the accuracy of the examination of the oral soft tissues.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments and relates to a combined intraoral soft tissue ultrasonic probe. Background Art

[0002] The oral cavity is the starting part of the digestive tract, containing organs such as teeth and tongue, as well as tissues such as lips and cheeks. The lip mucosa, buccal mucosa, and tongue are prone to various types of tumors or lesions, including some malignant tumors and precancerous lesions, so they must be subjected to necessary examinations. Ultrasound equipment is a commonly used medical device in clinical examinations. It can be used to examine oral soft tissues, such as deep tissues such as the tongue, cheeks, and lips, and superficial tissues such as the oral mucosa. However, the tongue, cheeks, etc. are located in the narrow space of the oral cavity, and the soft tissues in the oral cavity have a relatively special shape. The mucosal surface presents a physiological curvature, and the depth of the lesions varies. This places higher requirements on the contact between the probe of the ultrasound instrument and the soft tissue in the oral cavity and the observation of lesions of different depths in the tissue.

[0003] At the same time, since the ultrasound probe needs to contact different patients during examination, it needs to be disinfected frequently to keep the probe clean and prevent infection. However, the ultrasound probe is a very delicate medical device. Frequent wiping and disinfection of the probe will cause serious wear and tear of the probe and accelerate damage. Moreover, wiping and disinfection cannot reach the ideal disinfection standard, thus causing the risk of cross infection to patients.

[0004] In addition, according to the existing domestic ultrasonic sound wave emission frequency probes, the probe frequencies that can be used in the oral cavity are all lower than 13MHz, and the effect of focusing the sound waves on superficial parts is poor. There are still deficiencies for superficial tissues such as oral mucosa. The best solution is to artificially create a sound-transmitting window of fixed thickness between the ultrasonic probe and the examination site to focus the sound waves on the superficial part, thereby improving the imaging effect.

[0005] In addition, when using an ultrasonic probe, a coupling agent needs to be added. The coupling agent is wrapped in the capsule, and the ultrasonic probe is inserted into the capsule. Since the coupling agent is in liquid form, in routine use, the probe is placed in the capsule containing the coupling agent. When contacting the inspection site, due to local extrusion, the coupling agent between the probe surface and the plane of the inspection site flows to the periphery and the volume gradually decreases. During a long scanning process, the thickness of the artificially created sound-transmitting window continues to thin, resulting in inconsistent observation effects and low repeatability. After the capsule is wrapped with the coupling agent, the contact surface with the inspection site is prone to local severe wrinkles, which will hinder the emission and transmission of sound waves and interfere with ultrasonic imaging. For example, if the capsule refracts sound waves, unclear echo strips are formed at the contact surface with the tissue, which will increase the inaccuracy of the superficial soft tissue inspection in the oral cavity. Therefore, it is necessary to improve the existing ultrasonic probe to improve the accuracy of the ultrasonic probe in the inspection of the oral soft tissue. Summary of the invention

[0006] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a combined oral soft tissue ultrasound probe to solve the problem in the prior art that there is a lack of an oral soft tissue ultrasound probe that can fit the shape of the oral soft tissue, avoid contamination and wear of the ultrasound probe, effectively fix the coupling agent and the isolation capsule, and artificially manufacture a fixed thickness sound-transmitting window to improve detection accuracy.

[0007] To achieve the above-mentioned purpose and other related purposes, the present invention provides a combined oral soft tissue ultrasound probe, including a probe, a detection end of the probe is externally connected to a capsule containing a coupling agent, a detachable capsule fixing part is externally connected to the capsule, the capsule fixing part is hollow, one end of the capsule fixing part is provided with a first opening for inserting the probe with the capsule, and the bottom of the capsule fixing part is provided with a second opening for exposing the capsule.

[0008] Preferably, the capsule fixing piece is provided with an inclined portion and a horizontal portion in sequence along the probe insertion direction, the horizontal portion is used to fix the detection end of the probe sleeved with the capsule, and the inclined portion is used to fix the hand-held portion of the probe sleeved with the capsule.

[0009] More preferably, the angle between the horizontal portion and the inclined portion is 130-140°. Most preferably, the angle between the horizontal portion and the inclined portion is 135°.

[0010] Preferably, the first opening is provided at an inlet end of the inclined portion.

[0011] Preferably, the second opening includes a first section and a second section, the first section is located at the bottom of the inclined part, the second section is located at the bottom of the horizontal part, the first section is provided with at least one inwardly protruding fixing block, and the capsule protrudes from the second section to fit with the soft tissue in the oral cavity.

[0012] More preferably, the area of ​​the fixing block is 30-50% of the area of ​​the first section.

[0013] More preferably, the fixing blocks are respectively arranged on both sides of the first section, and respectively protrude inwardly from both sides of the first section.

[0014] Further preferably, the fixing blocks are symmetrically distributed on both sides of the first section.

[0015] Further preferably, the inwardly protruding shape of the fixing block is semi-elliptical.

[0016] More preferably, the oral soft tissue is selected from one of the arcuate mucosal planes of the tongue dorsum, tongue margin, buccal mucosa, and labial mucosa.

[0017] More preferably, the thickness of the envelope exposed outside the second section is 0.4-0.6 cm. Further preferably, the thickness of the envelope exposed outside the second section is 0.5 cm.

[0018] More preferably, the width of the second section is 0.4-0.6 cm. Further preferably, the width of the second section is 0.5 cm.

[0019] Preferably, the closed end of the envelope fixing element is rounded and has no edges or corners.

[0020] Preferably, the left and right surfaces of the hollow cavity of the envelope fixing member are arc-shaped surfaces convex outward.

[0021] Preferably, the hollow cavity of the envelope fixing piece is interference fit with the probe.

[0022] Preferably, the opening end of the envelope extends out of the envelope fixing piece, and a fixing ring is provided outside the opening end of the envelope, and the fixing ring constrains and closes the envelope to the handheld part of the probe.

[0023] More preferably, the fixing ring is a rubber band.

[0024] As described above, the combined oral soft tissue ultrasound probe provided by the present invention has the following beneficial effects:

[0025] (1) The present invention provides a combined oral soft tissue ultrasound probe, in which a capsule containing a coupling agent is fixed by the second section of the second opening of an external capsule fixing member, and the portion protruding from the second section fits with the curved mucosal plane of oral soft tissues such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the lip mucosa, so that the soft tissues in the oral cavity, such as mucosal lesions or benign and malignant tumors, can be accurately examined.

[0026] (2) The combined oral soft tissue ultrasound probe provided by the present invention has a detachable capsule fixing part. It only needs to replace the disposable plastic capsule and clean the capsule fixing part. There is no need to wipe and disinfect the probe frequently, thereby avoiding wear of the probe and reducing the risk of cross infection to the patient.

[0027] (3) The present invention provides a combined intraoral soft tissue ultrasound probe, which exposes a capsule containing a coupling agent of a fixed thickness in the second section of the second opening of the capsule fixing member. When the probe sound wave emission frequency is limited, an acoustic window of a certain thickness is artificially created between the ultrasound probe and the examination site, so that the sound waves are focused on the superficial site, the imaging of the superficial site is clearer and more visible, and the imaging effect is better.

[0028] (4) The combined oral soft tissue ultrasound probe provided by the present invention exposes and fixes the capsule containing the coupling agent in the second section of the second opening of the capsule fixing part, and sets a sound-transmitting window, so as to prevent the coupling agent from overflowing, avoid manual adjustment of the coupling agent acoustic window thickness multiple times during the inspection process, speed up the inspection, increase the clarity of the ultrasound image, and avoid the problem of uneven thickness of the coupling agent acoustic window and inaccurate observation indicators.

[0029] (5) The combined oral soft tissue ultrasound probe provided by the present invention has a simple structure, is easy to use, low cost, and has an ingenious design, and is very worthy of promotion and application.

[0030] (6) The present invention provides a combined oral soft tissue ultrasound probe, in which the end of the capsule containing the coupling agent is tightened by a fixing ring at the hand-held part of the probe, so that the coupling agent in the capsule does not overflow from the capsule under the pressure of the capsule fixing part, so that the amount of coupling agent in the capsule is constant, further ensuring that the thickness of the artificial sound-transmitting window in front of the probe remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Shown is a front view of the combined structure of a combined intraoral soft tissue ultrasound probe of the present invention.

[0032] Figure 2 Shown is a side view of the combined structure of a combined intraoral soft tissue ultrasound probe of the present invention.

[0033] Figure 3 Shown is a schematic diagram of the bottom structure of the envelope fixing member in the present invention.

[0034] Figure 4 It is a schematic diagram of the side structure of the membrane fixing member in the present invention.

[0035] Figure 5 It is a schematic diagram of the cross-sectional structure of the second section of the envelope fixing member in the present invention.

[0036] Figure 6 Shown is an ultrasound picture taken with an existing ultrasound probe.

[0037] Figure 7 Shown is an ultrasound photograph of an examination of soft tissue in the oral cavity by a combined ultrasound probe according to the present invention.

[0038] Reference numerals

[0039] 1 Probe

[0040] 11 Handheld

[0041] 2 Encapsulation

[0042] 3 Envelope fixing

[0043] 31 First Opening

[0044] 32 Second Opening

[0045] 321 First Segment

[0046] 322 Second Section

[0047] 323 fixed block

[0048] 33 Slanted section

[0049] 34 Horizontal section

[0050] 35 Hollow Cavity

[0051] 36 Left and right surfaces

[0052] 4 Fixing ring

[0053] A The thickness of the envelope exposed outside the second section

[0054] B The width of the second segment

[0055] α Angle between the horizontal part and the inclined part DETAILED DESCRIPTION

[0056] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0057] See also Figures 1 to 7 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0058] like Figure 1-5As shown, the present invention provides a combined oral soft tissue ultrasound probe, including a probe 1, a detection end of the probe 1 is connected to a capsule 2 containing a coupling agent, a detachable capsule fixing part 3 is connected to the capsule 2, the capsule fixing part 3 is hollow, one end of the capsule fixing part 3 is provided with a first opening 31 for inserting the probe 1 with the capsule 2 connected, and the bottom of the capsule fixing part 3 is provided with a second opening 32 for exposing the capsule 2.

[0059] In a preferred embodiment, Figure 1-2 As shown, the probe 1 is a conventional ultrasonic probe that can be purchased on the market. Specifically, the probe 1 is an IOE323 intraoperative ultrasonic probe produced by Esaote. At present, the maximum adjustable frequency of a single probe 1 is 13 MHz, which makes it difficult to observe superficial lesions, and the plane of the probe 1 has a poor fit with the oral tissue being examined.

[0060] In a preferred embodiment, Figure 1-2 As shown, the envelope 2 is a plastic film. The envelope 2 is selected from one of plastic, latex or epoxy resin. The envelope 2 is selected from a polymer composite material with high sound permeability.

[0061] In a preferred embodiment, the coupling agent is a commonly used coupling agent, which can be purchased from the market. Specifically, the coupling agent is an aqueous polymer gel. The aqueous polymer gel is a mixture of acrylic resin, glycerin and purified water.

[0062] In a preferred embodiment, Figure 1 , 2 As shown in , 3, 4, and 5, the material of the membrane fixing member 3 is selected from one of hardened resin and hard plastic. Specifically, the material of the membrane fixing member 3 is a high-strength material with plasticity. The hardened resin is a thermosetting resin, and the hard plastic is a thermosetting plastic. This material can effectively fix the membrane 2.

[0063] In a preferred embodiment, Figure 1 , 4 As shown, the capsule fixing member 3 is provided with an inclined portion 33 and a horizontal portion 34 in sequence along the insertion direction of the probe 1, the horizontal portion 34 is used to fix the detection end of the probe 1 with the capsule 2 sleeved thereon, and the inclined portion 33 is used to fix the hand-held portion 11 of the probe 1 with the capsule 2 sleeved thereon. The inclined portion 33 can effectively fix the hand-held portion 11 of the probe, so that the detection end of the probe 1 is fixed in the capsule fixing member 3 and is not easy to fall off. The horizontal portion 34 can effectively fix the capsule 2 containing the coupling agent, which is in a shape that fits the curved mucosal plane of the soft tissues in the oral cavity, such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the labial mucosa.

[0064] In a possible implementation, if Figure 4 As shown, the angle α between the horizontal portion 34 and the inclined portion 33 is 130-140°, preferably 135°, so that the envelope fixing member 3 matches the detection end and the hand-held portion 11 of the probe 1 .

[0065] In a preferred embodiment, Figure 3 As shown, the first opening 31 is provided at the entrance end of the inclined portion 33 .

[0066] In a preferred embodiment, Figure 3 As shown, the second opening 32 includes a first section 321 and a second section 322. The first section 321 is located at the bottom of the inclined portion 33, and the second section 322 is located at the bottom of the horizontal portion 34. The first section 321 is provided with at least one fixing block 323 protruding inwardly, and the capsule 2 protrudes from the second section 322 to fit with the soft tissue in the oral cavity. The fixing block 323 on the first section 321 of the second opening 32 is convenient for fixing the handheld portion 11 of the probe 1. The second section 322 of the second opening 32 exposes a certain thickness of the capsule 2 containing coupling agent, artificially creating a certain thickness of the sound-transmitting window, so that the sound waves are focused on the superficial part, and the imaging of the superficial part is clearer and more visible, and the imaging effect is better; at the same time, it is avoided to manually adjust the thickness of the coupling agent acoustic window multiple times during the inspection process, speed up the inspection speed, increase the clarity of the ultrasonic image, and avoid the problem of uneven thickness of the coupling agent acoustic window and inaccurate observation indicators.

[0067] In practical implementation, Figure 3 As shown, the area of ​​the fixing block 323 is 30-50% of the area of ​​the first section 321 , thereby effectively fixing the probe 1 .

[0068] In practical implementation, Figure 3 As shown, the fixing blocks 323 are respectively arranged on both sides of the first section 321, and protrude inwardly from both sides of the first section 321. Preferably, the fixing blocks 323 are symmetrically distributed on both sides of the first section 321. The inwardly protruding shape of the fixing blocks 323 is semi-elliptical, which is convenient for fixing the handheld part 11 of the probe 1.

[0069] The oral soft tissue in the present invention is selected from one of the arcuate mucosal planes of the tongue dorsum, tongue margin, buccal mucosa and labial mucosa.

[0070] In a specific embodiment, Figure 3 , 5As shown, the thickness A of the envelope 2 exposed outside the second section 322 is 0.4-0.6 cm, preferably 0.5 cm. This size facilitates the envelope fixing member 3 to form a rectangular parallelepiped with a certain thickness of the sound-transmitting window, so that when the probe 1 transmits ultrasound, the image of the superficial part is more clearly visible.

[0071] In a specific embodiment, the width B of the second section 322 is 0.4-0.6 cm, preferably 0.5 cm, so as to facilitate the extrusion of the envelope 2 from the second section 322 to a certain thickness.

[0072] In a preferred embodiment, Figure 1 , 3 As shown in Figures 4 and 5, the closed end of the capsule fixing member 3 is rounded and has no edges or corners, so as to prevent the capsule fixing member 3 from irritating the patient's throat, causing pharyngeal reflex, and leading to nausea and retching.

[0073] In a preferred embodiment, Figure 5 As shown, the left and right surfaces 36 of the hollow cavity 35 of the membrane fixing member 3 are arc-shaped surfaces convex outward. The hollow cavity 35 of the membrane fixing member 3 is interference-fitted with the probe 1, so as to facilitate the insertion of the probe 1 having an equilateral quadrangular prism shape.

[0074] In a preferred embodiment, Figure 1 , 2 As shown, the opening end of the envelope 2 extends out of the envelope fixing member 3, and a fixing ring 4 is provided outside the opening end of the envelope 2, and the fixing ring 4 constrains and seals the envelope 2 to the handheld part 11 of the probe 1 to prevent the coupling agent from overflowing from the envelope 2.

[0075] In an actual implementation, the fixing ring 4 is a rubber band, which can effectively tighten the envelope 2 .

[0076] Example 1

[0077] The user obtains a combined oral soft tissue ultrasound probe, inserts the probe 1 into the capsule 2 containing the coupling agent, the coupling agent fills the disposable set capsule 2, the capsule 2 extends to the handheld part 11 of the probe 1, and is tightened with a fixing ring 4 on the outside of the open end of the capsule 2 to prevent the coupling agent from overflowing. Take the capsule fixing part 3, and insert the detection end of the probe 1 with the capsule 2 containing the coupling agent on the outer cover into the capsule fixing part 3 through the first opening 31. The handheld part 11 of the probe 1 is fixed by the inclined part 33, and the detection end of the probe 1 is fixed by the horizontal part 34, so that the capsule fixing part 3 can be firmly sleeved on the detection end of the probe 1 and is not easy to fall off. Then, the detection end of the probe 1 sleeved with the capsule fixing part 3 is extended into the patient's oral cavity and placed on the curved mucosal plane of the oral soft tissue such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the lip mucosa. Since the closed end of the capsule fixing part 3 is rounded and has no edges and corners, it will not stimulate the patient's throat, cause the pharyngeal reflex, and cause nausea and retching. Since the width B of the second section 322 of the second opening 32 is 0.4-0.6 cm, preferably 0.5 cm, a certain thickness of the coating 2 containing the coupling agent can be squeezed out, which can fit with the soft tissue in the oral cavity and facilitate contact with the mucosa. At the same time, the thickness A of the coating 2 exposed outside the second section 322 is 0.4-0.6 cm, preferably 0.5 cm, so as to artificially create a sound-transmitting window of fixed thickness. Turn on the ultrasonic probe, and check the curved mucosal plane of the soft tissue in the oral cavity, such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the lip mucosa. Through the effect of the sound-transmitting window, the superficial part of the soft tissue in the oral cavity is more clearly visible, and the ultrasonic wave will not produce uneven echoes, so that the inspection result is accurate. The structure of the second section 322 in the capsule fixing member 3 effectively fixes the capsule 2 containing the coupling agent at the second section 322 of the second opening 32, thereby avoiding multiple manual adjustments of the coupling agent acoustic window thickness during the inspection process, speeding up the inspection, increasing the clarity of the ultrasonic image, and avoiding the problems of uneven thickness of the coupling agent acoustic window and inaccurate observation indicators.

[0078] Comparative Example 1

[0079] An existing ultrasonic probe is selected, and the detection end of the probe 1 is inserted into the capsule 2 containing the coupling agent, and the outer side of the opening end of the capsule 2 is tightened with a fixing ring 4, and then the detection end of the probe 1 is extended into the patient's oral cavity and placed on the arc-shaped mucosal plane of the oral soft tissue such as the back of the tongue, the edge of the tongue, the buccal mucosa, the lip mucosa, etc. for inspection.

[0080] The inspection results of the combined oral soft tissue ultrasonic probe in Example 1 were compared with those of the existing ultrasonic probe in Comparative Example 1. Figure 6 , 7 .

[0081] Depend on Figure 6It can be seen that the existing ultrasound probe does not use a capsule fixing part. During the examination, the capsule wrinkles many times, blocking the transmission of sound waves, resulting in unclear display of the rear image. The doctor needs to adjust it many times to keep the capsule flat, which prolongs the examination time. In addition, the superficial oral mucosa and submucosal layer (the uppermost layer of tissue in the picture) have the probe's sound wave emitting part, capsule, coupling agent, several layers of oral mucosa and other layers tightly attached, making it difficult to clearly distinguish the tissue layers. The ultrasound machine has a focus function (see two white triangle symbols on the right vertical axis of the image), which can increase the clarity of the tissue to be observed, but this focus function can only correspond to 1 / 3 of the image and cannot focus on the upper 1 / 3 of the image, that is, it cannot focus on the mucosal layer and submucosal layer.

[0082] And by Figure 7 It can be seen that the combined oral soft tissue ultrasound probe of the present invention uses a capsule fixing part. During the inspection process, a certain thickness of the sound-transmitting window is artificially made on the top to increase the display clarity of the rear tissue, isolate the probe from the observed mucosal layer, and facilitate the observation and measurement of the thickness of each layer of the mucosa. Because the coupling agent layer occupies a certain thickness (the upper 1 / 3 in the image), the main target mucosa and submucosal layer are displayed in the 1 / 3 part of the image, and the ultrasound machine has its own focus function to display the tissue more clearly. In addition, Figure 7 In the process, after the capsule fixing device is applied, due to the presence of the capsule fixing device and the fixing ring, a large amount of coupling agent in the capsule is pushed to the front of the sound-emitting plane of the probe, forming a large tension, fully filling the capsule, making the capsule less likely to wrinkle or deform, and the phenomenon is better.

[0083] Depend on Figure 6 , 7 It can be seen from the comparison that the inspection result of the combined intraoral soft tissue ultrasonic probe of the present invention is obviously better than the inspection result of the existing ultrasonic probe.

[0084] In summary, the combined oral soft tissue ultrasound probe provided by the present invention can be close to the oral soft tissue such as the back of the tongue, the edge of the tongue, the buccal mucosa, and the lip mucosa, so as to facilitate the examination of the pathological conditions of the oral soft tissue. There is no need to frequently wipe and disinfect the probe, so as to avoid the wear of the probe and reduce the risk of cross infection to the patient. The acoustic window with a fixed thickness is artificially manufactured to avoid multiple manual adjustments of the acoustic window thickness during the examination process, increase the clarity of the ultrasonic image, and improve the accuracy of the examination of the oral soft tissue. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0085] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A combined oral soft tissue ultrasound probe, comprising a probe (1), characterized in that: The detection end of the probe (1) is externally connected to a membrane (2) containing a coupling agent, and the membrane (2) is externally connected to a detachable membrane fixing piece (3), the membrane fixing piece (3) is hollow, one end of the membrane fixing piece (3) is provided with a first opening (31) for inserting the probe (1) with the membrane (2) connected thereto, and the bottom of the membrane fixing piece (3) is provided with a second opening (32) for exposing the membrane (2); The capsule fixing member (3) is provided with an inclined portion (33) and a horizontal portion (34) in sequence along the insertion direction of the probe (1), the horizontal portion (34) being used to fix the detection end of the probe (1) sleeved with the capsule (2), and the inclined portion (33) being used to fix the hand-held portion (11) of the probe (1) sleeved with the capsule (2); The second opening (32) comprises a first section (321) and a second section (322), the first section (321) being located at the bottom of the horizontal portion (34), the second section (322) being located at the bottom of the inclined portion (33), the first section (321) being provided with at least one fixing block (323) protruding inwardly, and the envelope (2) protruding from the second section (322) to fit with the soft tissue in the oral cavity; The fixing blocks (323) are respectively arranged on both sides of the first section (321), and respectively protrude inwardly from both sides of the first section (321); The inwardly protruding shape of the fixing block (323) is semi-elliptical.

2. The combined intraoral soft tissue ultrasound probe according to claim 1, characterized in that: The angle (α) between the horizontal portion (34) and the inclined portion (33) is 130-140°.

3. The combined intraoral soft tissue ultrasound probe according to claim 1, characterized in that: The first opening (31) is provided at an inlet end of the inclined portion (33).

4. The combined oral soft tissue ultrasound probe according to claim 1, characterized in that: The area of ​​the fixing block (323) is 30-50% of the area of ​​the first section (321).

5. The combined intraoral soft tissue ultrasound probe according to claim 1, characterized in that: The thickness (A) of the envelope (2) exposed outside the second section (322) is 0.4-0.6 cm.

6. The combined oral soft tissue ultrasound probe according to claim 1, characterized in that: The width (B) of the second section (322) is 0.4-0.6 cm.

7. The combined intraoral soft tissue ultrasound probe according to claim 1, characterized in that: The open end of the envelope (2) extends out of the envelope fixing member (3), and a fixing ring (4) is provided outside the open end of the envelope (2), and the fixing ring (4) constrains and seals the envelope (2) to the handheld portion (11) of the probe (1).

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