Ultrasonic equipment, intracavity ultrasonic probe and middle base of intracavity ultrasonic probe

Abstract

According to the ultrasonic equipment, the intracavity ultrasonic probe and the middle base, the weight of the whole intracavity ultrasonic probe is reduced by improving the structure of the middle base. The middle base comprises a first side part and a second side part which are deviated from each other; the first side part is used for enclosing a first cavity with the probe shell, and the second side part is used for enclosing a second cavity with the handle shell. At least one of the first side portion and the second side portion is provided with a weight reduction sinking groove, and part of materials of the middle base are dug out through the weight reduction sinking groove, so that the purpose of weight reduction is achieved.

Description

Technical Field

[0001] The present application relates to medical devices, and particularly to a structure of an intermediate base of an intracavitary ultrasound probe. Background Art

[0002] Intracavitary ultrasound probes are mainly used for ultrasonic detection within the body cavity of an object. This type of intracavitary ultrasound probe generally includes a housing, and components such as a sound head, a rotating shaft, and a motor are provided inside the housing. Due to material reasons, and with numerous internal components and a complex structure, the entire intracavitary ultrasound probe is relatively heavy, which causes doctors to feel fatigued during long-term use. Utility Model Content

[0003] The present application provides an ultrasonic device, an intracavitary ultrasound probe, and an intermediate base thereof to reduce the weight of the intracavitary ultrasound probe.

[0004] Based on one of the above purposes, an embodiment of the present application provides an intracavitary ultrasound probe, including:

[0005] A sound head for emitting and receiving ultrasonic signals;

[0006] A probe housing;

[0007] An intermediate base having a first side portion and a second side portion facing away from each other; the intermediate base is connected to the probe housing, the first side portion and the probe housing enclose a first cavity, and the sound head is disposed in the first cavity;

[0008] A handle housing connected to the intermediate base, the second side portion and the handle housing enclose a second cavity, the first cavity and the second cavity are sealed and separated by the intermediate base, and at least one of the first side portion and the second side portion has a weight-reducing sink;

[0009] A driving component for providing a driving force to drive the sound head to rotate, and the driving component is disposed in the second cavity;

[0010] And a transmission member in transmission connection with the driving component, and the transmission member passes through the intermediate base from the second cavity and extends into the first cavity, and is hermetically connected between the transmission member and the intermediate base; the sound head is connected to the transmission member to rotate under the drive of the transmission member.

[0011] In one embodiment, a position detection module is further included. The position detection module includes a trigger member and a detection component. The trigger member is in transmission connection with the transmission member and moves along with the transmission member. At least one of the weight reduction grooves is a detection component installation groove located on the second side portion. The detection component is embedded in the detection component installation groove. The detection component is located on the movement track of the trigger member so that the detection component can be triggered when the trigger member moves to the detection area of the detection component.

[0012] In one embodiment, the detection component installation groove includes a main body area and a cable bending area that communicate with each other. The detection component is embedded in the main body area. The cable of the detection component extends from the main body area into the cable bending area and extends out from the cable bending area.

[0013] In one embodiment, a speed reduction gear set is further included. The transmission member is a rotating shaft. The speed reduction gear set includes a small gear and a large gear that mesh with each other. The small gear is coaxially fixed with the transmission member. The large gear is located on one side of the transmission member. The trigger member is arranged on the large gear and rotates together with the large gear.

[0014] In one embodiment, at least one of the weight reduction grooves is a sealing groove located on the first side portion. The sealing groove is arranged around the axis of the intermediate base. The probe housing has a sealing insertion portion. The sealing insertion portion is inserted into the sealing groove and is in sealed connection with the sealing groove.

[0015] In one embodiment, the first side portion has a first convex wall and a second convex wall that protrude towards the first cavity. Both the first convex wall and the second convex wall are arranged around the axis of the intermediate base. And the first convex wall is arranged around the circumference of the second convex wall. A sealing groove is formed between the first convex wall and the second convex wall. The outer side surface of the first convex wall is a sealing surface. The probe housing has a sealing wall. The sealing wall is located outside the convex wall and is in sealed connection with the sealing surface.

[0016] The sealing groove is an annular sealing groove arranged around the axis of the intermediate base.

[0017] In one embodiment, at least one of the weight reduction grooves is a coupling liquid accommodation groove located on the first side portion. The coupling liquid accommodation groove and the first cavity communicate to form the same sealed cavity.

[0018] In one embodiment, the bottom wall of the coupling liquid accommodation groove has a liquid adding hole that penetrates through the intermediate base. A detachable sealing member is arranged on the liquid adding hole. On the radial surface of the intermediate base, the area of the coupling liquid accommodation groove is larger than the area of the liquid adding hole.

[0019] In one embodiment, it further includes a coupling liquid compensator installed in the coupling liquid accommodating groove to reduce the volume of the coupling liquid in the coupling liquid accommodating groove.

[0020] Wherein, the outer shape of the coupling liquid compensator fits the groove wall of the coupling liquid accommodating groove; and / or

[0021] The coupling liquid compensator includes an insertion pipe and an enlarged portion. On the radial surface of the intermediate base, the area of the enlarged portion is larger than that of the insertion pipe; the bottom wall of the coupling liquid accommodating groove has a compensator installation hole penetrating the intermediate base, the insertion pipe is inserted into the compensator installation hole, and the enlarged portion extends radially along the intermediate base into the coupling liquid accommodating groove.

[0022] For one of the above purposes, an intermediate base of an intracavitary ultrasound probe is provided in an embodiment of the present application, including a first side portion and a second side portion facing away from each other; the first side portion is used to enclose a first cavity with the probe housing, and the first cavity is used to accommodate the acoustic head; the second side portion is used to enclose a second cavity with the handle housing, and the second cavity is used to accommodate a driving assembly for driving the acoustic head to rotate; at least one of the first side portion and the second side portion has a weight-reducing sink.

[0023] In one embodiment, at least one of the weight-reducing sinks is a detection component installation sink located on the second side portion, and the detection component installation sink is used to accommodate the detection components of the position detection module.

[0024] In one embodiment, the detection component installation sink includes a main body area and a cable bending area communicating with each other. The main body area is used to accommodate the detection components, and the cable bending area is used as a bending space for the cables of the detection components.

[0025] In one embodiment, at least one of the weight-reducing sinks is a sealing groove located on the first side portion. The sealing groove is arranged around the axis of the intermediate base and is used for sealing connection with the probe housing.

[0026] In one embodiment, the first side portion has a first convex wall and a second convex wall protruding toward the probe housing side. Both the first convex wall and the second convex wall are arranged around the axis of the intermediate base, and the first convex wall is arranged circumferentially around the second convex wall. A sealing groove is formed between the first convex wall and the second convex wall; the outer side surface of the first convex wall is a sealing surface for sealing connection with the probe housing;

[0027] The sealing groove is an annular sealing groove arranged around the axis of the intermediate base.

[0028] In one embodiment, at least one of the weight-reducing grooves is a coupling liquid accommodating groove located on the first side portion, and the coupling liquid accommodating groove is used to accommodate coupling liquid.

[0029] Based on one of the above purposes, in one embodiment of the present application, an ultrasonic device is provided, including:

[0030] A main unit, the main unit having a main control unit;

[0031] And an intracavitary ultrasonic probe as described in any one of the above, the intracavitary ultrasonic probe is communicatively connected to the main control unit to control the operation of the intracavitary ultrasonic probe.

[0032] According to the ultrasonic device, intracavitary ultrasonic probe and intermediate base of the above embodiments, in these embodiments, by improving the structure of the intermediate base, the weight reduction of the entire intracavitary ultrasonic probe is achieved. The intermediate base includes a first side portion and a second side portion facing away from each other; the first side portion is used to enclose a first cavity with the probe housing, and the second side portion is used to enclose a second cavity with the handle housing. At least one of the first side portion and the second side portion has a weight-reducing groove, and part of the material of the intermediate base is removed through the weight-reducing groove, thereby achieving the purpose of weight reduction. Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the external structure of an intracavitary ultrasonic probe according to an embodiment of the present application;

[0034] Figure 2 It is a schematic cross-sectional view of an intracavitary ultrasonic probe passing through its axis according to an embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the structure on the side where the first side portion of the intermediate base is located according to an embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the structure on the side where the second side portion of the intermediate base is located according to an embodiment of the present application;

[0037] Figure 5 It is a schematic diagram of the structure of the intermediate base after installing the detection component of the position detection module according to an embodiment of the present application;

[0038] Figure 6 It is a schematic diagram of the connection structure between the trigger and the transmission member of the position detection module according to an embodiment of the present application;

[0039] Figure 7 It is a front view of the first side portion of the intermediate base according to an embodiment of the present application;

[0040] Figure 8 It is an exploded view of the intermediate base and the coupling liquid compensating member according to an embodiment of the present application. Detailed Implementation Modes

[0041] The present utility model will be further described in detail below in conjunction with the accompanying drawings through specific implementation modes. Similar elements in different implementation modes adopt related similar element numbers. In the following implementation modes, many detailed descriptions are provided to enable a better understanding of this application. However, those skilled in the art can easily recognize that some of these features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to this application are not shown or described in the specification to avoid overwhelming the core part of this application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the field.

[0042] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation modes. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean that they are the necessary sequences, unless it is stated otherwise that a certain sequence must be followed.

[0043] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connections (couplings).

[0044] In order to reduce the weight of the entire intracavitary ultrasound probe, considering that the intermediate base of the existing intracavitary ultrasound probe is usually made of metal materials, this application starts from the intermediate base and reduces the weight of the intermediate base through improvements in structure and materials, thereby reducing the weight of the entire intracavitary ultrasound probe.

[0045] Some embodiments of this application provide an intracavitary ultrasound probe.

[0046] Please refer to Figure 1-4 , in some embodiments, the intracavitary ultrasound probe includes a sound head (not shown in the figure), a probe housing 100, an intermediate base 200, a handle housing 300, a drive assembly (not shown in the figure), and a transmission member 400. Of course, in some embodiments, the intracavitary ultrasound probe may also have other components according to requirements. Reference can be made to the prior art and will not be elaborated here.

[0047] Please refer to Figure 3 and 4The intermediate base 200 has a first side portion 210 and a second side portion 220 that are separated from each other. Figure 1 and 2 The intermediate base 200 is connected to the probe housing 100, and the first side portion 210 and the probe housing 100 enclose a first cavity 510. The handle housing 300 is also connected to the intermediate base 200, and the second side portion 220 and the handle housing 300 enclose a second cavity 520. Figure 2 In the illustrated embodiment, the probe housing 100 can be directly connected to the handle housing 300, with the intermediate base 200 installed in the cavity formed by the two. Of course, in other embodiments, the probe housing 100 and the handle housing 300 can also be connected to the intermediate base 200 separately, with the intermediate base 200 serving as a transition structure between the probe housing 100 and the handle housing 300. In all of these connection methods, it can be considered that the probe housing 100 is connected to the intermediate base 200, and the handle housing 300 is also connected to the intermediate base 200.

[0048] The driving assembly is used to provide a driving force to drive the acoustic head to rotate, so as to drive the transmission member 400 to move, thereby driving the acoustic head to move. The driving assembly can adopt a motor or other forms of driving structure. The driving assembly can be arranged in the second cavity 520. The transmission member 400 is connected to the driving assembly in a transmission manner, and the transmission member 400 passes through the intermediate base 200 from the second cavity 520 and extends into the first cavity 510. The transmission member 400 and the intermediate base 200 are sealed. Figure 2 In the illustrated embodiment, the transmission member 400 may be a rotating shaft. Of course, in other embodiments, the transmission member 400 may also be a pull rope, a synchronous pulley, or other forms of transmission structure. The specific structure of these transmission members 400 can refer to the structure of existing ultrasound probes. The acoustic head is connected to the transmission member 400 so as to rotate under the drive of the transmission member 400. The acoustic head can be placed in the first cavity 510 and can move within the first cavity 510, for example, rotating around the axial direction of the transmission member 400 within the first cavity 510 under the drive of the transmission member 400, or moving back and forth along the axial direction of the transmission member 400. The acoustic head is used to emit and receive ultrasonic signals, and it can adopt various acoustic head structures that can be applied to intracavitary ultrasound probes.

[0049] The first cavity 510 and the second cavity 520 are sealed and separated by the intermediate base 200. Generally, the intermediate base 200 has a certain thickness. Except for the various through holes formed to install the corresponding components, the rest of the intermediate base 200 is a solid structure, resulting in a thicker thickness and heavier weight of the intermediate base 200. Figure 3 and 4, in some embodiments of the present application, at least one of the first side portion 210 and the second side portion 220 has a weight-reducing sink 230. The weight-reducing sink 230 refers to a structure whose bottom does not penetrate, which can not only reduce the thickness of the intermediate base 200 in the axial direction (i.e., the length direction of the intracavitary ultrasound probe), but also ensure the function of the intermediate base 200 to seal and separate the first cavity 510 and the second cavity 520.

[0050] In some embodiments, the weight-reducing sink 230 can avoid some through holes on the intermediate base 200, such as the transmission member mounting holes 241 mentioned later. In the axial direction of the intermediate base 200, setting the weight-reducing sink 230 in these non-functional solid parts can reduce the axial thickness of these solid parts, thereby reducing their weight, and ultimately achieving the purpose of reducing the weight of the entire intermediate base 200.

[0051] Furthermore, in some embodiments, the weight-reducing sink 230 can be only used for the purpose of simple weight reduction. However, in order to improve the compactness of the entire structure, in some other embodiments, at least part of the weight-reducing sink 230 can also be given other functions.

[0052] Please refer to Figure 5 and 6 , in some embodiments, the intracavitary ultrasound probe further includes a position detection module 600, and the position detection module 600 can be used for detecting the movement position of the sound head, for example, for detecting the zero position of the sound head. The position detection module 600 includes a trigger member 610 and a detection component 620, and the trigger member 610 is in transmission connection with the transmission member 400 and moves along with the transmission member 400.

[0053] Please refer to Figure 4 and 5 , in some embodiments, at least one weight-reducing sink 230 is a detection component mounting sink 231 located on the second side portion 220 (in the label, 230(231) indicates that this feature can be called the weight-reducing sink 230 or the detection component mounting sink 231). The detection component 620 is embedded in the detection component mounting sink 231. The detection component 620 is located on the movement trajectory of the trigger member 610 so that the detection component 620 can be triggered when the trigger member 610 moves to the detection area of the detection component 620. In this embodiment, when reducing the weight of the intermediate base 200, the detection component mounting sink 231 also serves as the installation of the detection component 620. And embedding the detection component 620 in the detection component mounting sink 231 can save the internal space of the probe, thereby making the entire internal structure more compact, which is beneficial to reducing the volume of the intracavitary ultrasound probe.

[0054] Furthermore, please refer to Figure 4 and 5, in some embodiments, the detection component installation sink 231 includes a main body area 2311 and a cable bending area 2312 that communicate with each other. The detection component 620 is embedded in the main body area 2311, and the cable 630 of the detection component 620 extends from the main body area 2311 into the cable bending area 2312 and extends out from the cable bending area 2312. After reserving the cable bending area 2312, it is more convenient for the cable 630 of the detection component 620 to route, avoiding occupying more space outside the middle base 200 due to the bending of the cable 630, which can further contribute to the structural compactness.

[0055] The position detection module 600 can be but is not limited to an optoelectronic detection module or a Hall detection module, etc. Please refer to Figure 5 and 6 , in some embodiments, the position detection module 600 is an optoelectronic detection module, the triggering member 610 can be a stop block, and the detection component 620 can include a detection light emitting unit and a detection light receiving unit. When the stop block moves to the propagation path of the detection light, the detection component 620 can be triggered to emit a corresponding detection signal.

[0056] The triggering member 610 can be directly fixed on the transmission member 400 or connected to the transmission member 400 through a transmission mechanism. Please refer to Figure 6 , in some embodiments, the intracavitary ultrasonic probe further includes a reduction gear set 700. At this time, the transmission member 400 is a rotating shaft. The reduction gear set 700 includes a small gear 710 and a large gear 720 that mesh with each other. The small gear 710 is coaxially fixed with the transmission member 400, the large gear 720 is located on one side of the transmission member 400, and the triggering member 610 is provided on the large gear 720 and rotates with the large gear 720. During the movement of the triggering member 610, when it moves to the detection area of the detection component 620, the detection component 620 can be triggered to emit a corresponding detection signal.

[0057] In some other embodiments, the weight reduction sink 230 can also be given other functions. Please refer to Figure 2 and 3 , in some embodiments, at least one weight reduction sink 230 is a sealing groove 232 located on the first side portion 210. The sealing groove 232 is arranged around the axis of the middle base 200. The probe housing 100 has a sealing insertion portion 110, and the sealing insertion portion 110 is inserted into the sealing groove 232 and is hermetically connected to the sealing groove 232. The sealing groove 232 can be used to realize the sealed docking of the middle base 200 and the probe housing 100100, thereby omitting other sealing structures, which can not only play a role in weight reduction but also simplify the structure.

[0058] More specifically, please refer to Figure 2 and 3, in some embodiments, the first side portion 210 has a first convex wall 210 and a second convex wall 220 protruding towards the first cavity 510. Both the first convex wall 210 and the second convex wall 220 are arranged around the axis of the intermediate base 200, and the first convex wall 210 is arranged circumferentially around the second convex wall 220. A sealing groove 232 is formed between the first convex wall 210 and the second convex wall 220. Among them, as Figure 3 shown in the illustrated embodiment, the sealing groove 232 is an annular sealing groove arranged around the axis of the intermediate base 200. In other embodiments, the sealing groove 232 can also be of other shapes.

[0059] In addition, to enhance the sealing effect, please refer to Figure 2 and 3 , in some embodiments, without changing the structure of the intermediate base 200, the outer side surface of the first convex wall 210 can also be a sealing surface 211. The probe housing 100 has a sealing wall 120, and the sealing wall 120 is located outside the convex wall and is sealingly connected to the sealing surface 211. In this embodiment, the sealing can be achieved through an inner and outer double-layer sealing structure to ensure the sealing effect.

[0060] In addition, please refer to Figure 3 and 7 , in some other embodiments, at least one weight-reducing sink 230 is a coupling liquid accommodating groove 233 located in the first side portion 210. The coupling liquid accommodating groove 233 is communicated with the first cavity 510 to form the same sealed cavity, and coupling liquid can be accommodated in this sealed cavity. Compared with a solid metal structure, although the coupling liquid accommodating groove 233 will be filled with coupling liquid, the density of the coupling liquid is lower than that of the metal material, so it can still reduce the weight of the intermediate base 200 to a certain extent.

[0061] The coupling liquid accommodating groove 233 can be set in any shape, and the larger the space it occupies, the better the weight reduction. Please refer to Figure 7 , in some embodiments, the intermediate base 200 has a transmission member mounting hole 241, and the transmission member 400 is sealingly mounted in the transmission member mounting hole 241. In order to expand the space of the coupling liquid accommodating groove 233, in the Figure 7 shown embodiment, on the radial plane of the intermediate base 200, that is, the plane perpendicular to the axial direction of the intermediate base 200, the coupling liquid accommodating groove 233 can be in a semi-surrounding structure relative to the transmission member mounting hole 241, so as to better enable the coupling liquid accommodating groove 233 to extend around the transmission member mounting hole 241.

[0062] Specifically, please refer to Figure 7 , in some embodiments, the coupling liquid accommodating groove 233 is in a Y shape to expand the space of the coupling liquid accommodating groove 233 as much as possible. Of course, in other embodiments, the coupling liquid accommodating groove 233 can also be in a V, U shape or other shapes.

[0063] Further, in some embodiments, please refer to Figure 2 and 7 , the bottom wall of the coupling liquid accommodating groove 233 has a liquid adding hole 242 penetrating through the intermediate base 200, and a detachable sealing member is provided on the liquid adding hole 242 to seal the liquid adding hole 242. On the radial surface of the intermediate base 200, the area of the coupling liquid accommodating groove 233 is larger than the area of the liquid adding hole 242 to expand the cavity of the coupling liquid accommodating groove 233, and further reduce the weight of the intermediate base 200.

[0064] Further, in some embodiments, please refer to Figure 2 and 8 , the intracavitary ultrasonic probe further includes a coupling liquid compensating member 700. When the ambient temperature around the intracavitary ultrasonic probe changes, the volume of the coupling liquid in the first cavity 510 will change. In order not to affect the stable operation of the intracavitary ultrasonic probe, by providing the coupling liquid compensating member 700, the compensation of the volume of the coupling liquid in the first cavity 510 is realized. The coupling liquid compensating member 700 is usually made of a material with deformable volume, and its interior can be set as a cavity structure. The specific structure of the coupling liquid compensating member 700 can refer to the prior art. The coupling liquid compensating member 700 is installed in the coupling liquid accommodating groove 233. Due to the presence of the coupling liquid compensating member 700, it can occupy the space in the first cavity 510, thereby making the volume of the coupling liquid in the first cavity 510 smaller. And the coupling liquid compensating member 700 is usually a cavity structure, and the density of air is much smaller than the density of the coupling liquid, so that the weight of the whole intracavitary ultrasonic probe can be further reduced.

[0065] In order to make full use of the space in the coupling liquid accommodating groove 233, in some embodiments, the outer shape of the coupling liquid compensating member 700 fits the groove wall of the coupling liquid accommodating groove 233.

[0066] Of course, in some other embodiments, considering the manufacturing difficulty, it is difficult for the outer shape of the coupling liquid compensating member 700 to completely fit the groove wall of the coupling liquid accommodating groove 233. At this time, the outer shape of the coupling liquid compensating member 700 can also be extended as much as possible towards the coupling liquid accommodating groove 233. For example, please refer to Figure 2 and 8 , in some embodiments, the coupling liquid compensating member 700 includes a plugging pipeline 710 and an expanding portion 720. On the radial surface of the intermediate base 200, the area of the expanding portion 720 is larger than the area of the plugging pipeline 710; the bottom wall of the coupling liquid accommodating groove 233 has a compensating member installation hole 243 penetrating through the intermediate base 200, and the plugging pipeline 710 is inserted into the compensating member installation hole 243, and the expanding portion 720 extends radially along the intermediate base 200 into the coupling liquid accommodating groove 233.

[0067] On the other hand, in addition to reducing the weight of the intermediate base 200 through the above structural improvements, in some other embodiments, the intermediate base 200 can also be made of a polymer material with less sealing instead of a metal material.

[0068] In addition, the present application also provides an ultrasonic device, which includes a main unit and an intracavitary ultrasonic probe as shown in any of the above embodiments. The main unit has a main control unit, and the intracavitary ultrasonic probe is communicatively connected to the main control unit to control the operation of the intracavitary ultrasonic probe. For example, it controls the acoustic head to emit ultrasonic signals and controls the driving assembly to drive the acoustic head to move, etc.

[0069] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. An intravascular ultrasound probe, characterized in that, Comprising: An acoustic head for emitting and receiving ultrasonic signals; A probe housing; An intermediate base having a first side and a second side facing away from each other; The intermediate base is connected to the probe housing. The first side and the probe housing enclose a first cavity, and the acoustic head is disposed in the first cavity; A handle housing connected to the intermediate base. The second side and the handle housing enclose a second cavity. The first cavity and the second cavity are sealed and separated by the intermediate base. At least one of the first side and the second side has a weight-reducing sunk groove; A driving assembly for providing a driving force to drive the acoustic head to rotate. The driving assembly is disposed in the second cavity; And a transmission member. The transmission member is in transmission connection with the driving assembly, and the transmission member passes through the intermediate base from the second cavity and extends into the first cavity. The transmission member is in sealed connection with the intermediate base; the acoustic head is connected to the transmission member to rotate under the drive of the transmission member.

2. The intracavitary ultrasound probe according to claim 1, characterized in that, It further includes a position detection module. The position detection module includes a trigger member and a detection component. The trigger member is in transmission connection with the transmission member and moves with the transmission member; at least one of the weight-reducing sunk grooves is a detection component mounting sunk groove located on the second side. The detection component is embedded in the detection component mounting sunk groove; the detection component is located on the movement track of the trigger member so that the trigger member can trigger the detection component when it moves to the detection area of the detection component.

3. The intracavitary ultrasound probe according to claim 2, wherein The detection component mounting sunk groove includes a main body area and a cable bending area that communicate with each other. The detection component is embedded in the main body area. The cable of the detection component extends from the main body area into the cable bending area and extends out from the cable bending area.

4. The intracavitary ultrasound probe according to claim 2 or 3, characterized in that, It further includes a reduction gear set. The transmission member is a rotating shaft. The reduction gear set includes a small gear and a large gear that mesh with each other. The small gear is fixedly coaxially with the transmission member. The large gear is located on one side of the transmission member. The trigger member is disposed on the large gear and rotates together with the large gear.

5. The intracavitary ultrasound probe according to claim 1, wherein, At least one of the weight-reducing sunk grooves is a sealing groove located on the first side. The sealing groove is arranged around the axis of the intermediate base. The probe housing has a sealing insertion portion that is inserted into the sealing groove and is in sealed connection with the sealing groove.

6. The intracavitary ultrasound probe according to claim 5, wherein, The first side has a first convex wall and a second convex wall protruding towards the first cavity. Both the first convex wall and the second convex wall are arranged around the axis of the intermediate base, and the first convex wall is arranged circumferentially around the second convex wall. A sealing groove is formed between the first convex wall and the second convex wall; the outer side surface of the first convex wall is a sealing surface. The probe housing has a sealing wall located outside the convex wall and is in sealed connection with the sealing surface; The sealing groove is an annular sealing groove arranged around the axis of the intermediate base.

7. The intracavitary ultrasound probe according to claim 1, characterized in that, At least one of the weight-reducing sunk grooves is a coupling liquid accommodating groove located on the first side. The coupling liquid accommodating groove communicates with the first cavity to form the same sealed cavity.

8. The intracavitary ultrasound probe according to claim 7, wherein, The bottom wall of the coupling liquid accommodating groove has a liquid adding hole penetrating through the intermediate base, and a detachable sealing member is provided on the liquid adding hole; on the radial surface of the intermediate base, the area of the coupling liquid accommodating groove is larger than the area of the liquid adding hole; the intracavitary ultrasonic probe further includes a coupling liquid compensating member, and the coupling liquid compensating member is installed in the coupling liquid accommodating groove for reducing the volume of the coupling liquid in the coupling liquid accommodating groove; wherein, the outer shape of the coupling liquid compensating member fits the groove wall of the coupling liquid accommodating groove.

9. The intracavitary ultrasonic probe according to claim 8, wherein the coupling liquid compensating member includes a plugging pipe and an enlarging portion, and on the radial surface of the intermediate base, the area of the enlarging portion is larger than the area of the plugging pipe; the bottom wall of the coupling liquid accommodating groove has a compensating member installation hole penetrating through the intermediate base, the plugging pipe is inserted into the compensating member installation hole, and the enlarging portion extends radially along the intermediate base into the coupling liquid accommodating groove.

10. An intermediate base of an intracavitary ultrasound probe, characterized in that, It includes a first side portion and a second side portion facing away from each other; the first side portion is used to enclose a first cavity with the probe housing, and the first cavity is used to accommodate the acoustic head; the second side portion is used to enclose a second cavity with the handle housing, and the second cavity is used to accommodate a driving assembly for driving the acoustic head to rotate; at least one of the first side portion and the second side portion has a weight-reducing sinking groove.

11. The intermediate base according to claim 10, characterized in that, At least one of the weight-reducing sinking grooves is a detection component installation sinking groove located on the second side portion, and the detection component installation sinking groove is used to accommodate the detection component of the position detection module.

12. The intermediate base according to claim 11, characterized in that, The detection component installation sinking groove includes a main body area and a cable bending area communicating with each other, the main body area is used to accommodate the detection component, and the cable bending area is used as a bending space for the cable of the detection component.

13. The intermediate base according to claim 10, wherein At least one of the weight-reducing sinking grooves is a sealing groove located on the first side portion, the sealing groove is arranged around the axis of the intermediate base, and the sealing groove is used for sealing connection with the probe housing.

14. The intermediate base according to claim 13, characterized in that, The first side portion has a first convex wall and a second convex wall protruding towards the probe housing side, both the first convex wall and the second convex wall are arranged around the axis of the intermediate base, and the first convex wall is arranged circumferentially around the second convex wall, and a sealing groove is formed between the first convex wall and the second convex wall; the outer side surface of the first convex wall is a sealing surface, and the sealing surface is used for sealing connection with the probe housing; The sealing groove is an annular sealing groove arranged around the axis of the intermediate base.

15. The intermediate base according to claim 10, characterized in that, At least one of the weight-reducing sinking grooves is a coupling liquid accommodating groove located on the first side portion, and the coupling liquid accommodating groove is used to accommodate coupling liquid.

16. An ultrasonic device, characterized in that, It includes: A main machine, the main machine has a main control unit; And the intracavitary ultrasonic probe according to any one of claims 1-9, the intracavitary ultrasonic probe is communicatively connected to the main control unit to control the intracavitary ultrasonic probe to work.

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