Ultrasonic probe and ultrasonic imaging apparatus

Abstract

The application relates to an ultrasonic probe and an ultrasonic imaging device. The ultrasonic probe comprises a shell assembly, an acoustic assembly accommodated in the shell assembly, a driving assembly accommodated in the shell assembly and connected with the acoustic assembly and reciprocally movable relative to the shell assembly to drive the acoustic assembly to reciprocally swing, and a transmission assembly accommodated in the shell assembly and comprising a first transmission mechanism configured to be rotatable relative to the shell assembly and a second transmission mechanism in transmission connection with the first transmission mechanism and rotatable under the driving of the first transmission mechanism, and part of the second transmission mechanism is fixedly connected with the driving assembly; when the first transmission mechanism is driven to rotate, the first transmission mechanism drives the second transmission mechanism to rotate, and in turn drives the driving assembly to reciprocally move, so as to drive the acoustic assembly to reciprocally swing. The structure is novel, and the driving motor of the ultrasonic probe does not need to have higher performance requirements, and the detection function of the ultrasonic probe can be realized.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an ultrasound probe and an ultrasound imaging device. Background Technology

[0002] Ultrasonic probes are typically powered by stepper motors. The forward and reverse motion of the stepper motor drives a transmission mechanism that in turn drives a one-dimensional array transducer to oscillate back and forth. During this oscillation, the transducer emits and receives ultrasonic waves, transmitting the acquired two-dimensional image data from different planes to the ultrasonic host for processing, ultimately producing a three-dimensional image. When using stepper motors for driving, there is usually only one stage of transmission, resulting in a small transmission ratio and high performance requirements for the stepper motor, leading to higher production costs. Summary of the Invention

[0003] The main technical problem addressed by this application is to provide an ultrasonic probe and an ultrasonic imaging device having such an ultrasonic probe.

[0004] To address the aforementioned technical problems, this application provides an ultrasonic probe, comprising: a housing assembly; an acoustic component housed within the housing assembly; a drive assembly housed within the housing assembly and connected to the acoustic component, and capable of reciprocating relative to the housing assembly to drive the acoustic component to oscillate reciprocally; and a transmission assembly housed within the housing assembly, comprising: a first transmission mechanism configured to rotatably relative to the housing assembly; and a second transmission mechanism drivenly connected to the first transmission mechanism and rotatable under the drive of the first transmission mechanism, with a portion of the second transmission mechanism fixedly connected to the drive assembly; when the first transmission mechanism is driven to rotate, the first transmission mechanism drives the second transmission mechanism to rotate, thereby driving the drive assembly to reciprocate, thus driving the acoustic component to oscillate reciprocally.

[0005] In another aspect, this application also provides an ultrasound imaging device, comprising: an ultrasound host; and the aforementioned ultrasound probe, the ultrasound probe being connected to the ultrasound host.

[0006] The ultrasonic probe in this application employs a first transmission mechanism and a second transmission mechanism to form a two-stage transmission assembly. The first transmission mechanism drives the second transmission mechanism to rotate, which in turn drives the drive assembly of the ultrasonic probe to reciprocate, thereby causing the acoustic assembly to oscillate back and forth. The ultrasonic probe in this application has a novel structure and achieves its detection function without requiring the drive motor of the ultrasonic probe to have higher performance requirements. Attached Figure Description

[0007] This application will describe the embodiments in conjunction with the accompanying drawings. The drawings are for illustrative purposes only and are used to describe the embodiments. Without departing from the principles of this application, those skilled in the art can easily make other embodiments based on the steps described below.

[0008] Figure 1 This is a three-dimensional structural schematic diagram of the ultrasonic probe provided in the embodiments of this application;

[0009] Figure 2 This application Figure 1 The schematic diagram of the acoustic sensor in the embodiment shown is as follows;

[0010] Figure 3 This application Figure 1 A partial structural diagram of the embodiment shown with the first shell removed;

[0011] Figure 4 This is an exploded perspective view of the transmission assembly provided in the embodiments of this application;

[0012] Figure 5 This application Figure 4 A cross-sectional view of the transmission assembly housed within the first and second housings;

[0013] Figure 6 yes Figure 5 A schematic diagram of the assembly of the central sealing cover and the sound head base;

[0014] Figure 7 This is a schematic diagram of the structure of the ultrasound imaging device provided in the embodiments of this application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0016] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0017] It is understood that the terms "first housing" and "second housing" can be interchanged in some embodiments. For example, in one embodiment, the "first housing" in other embodiments can be called the "second housing," and correspondingly, the "second housing" in other embodiments can be called the "first housing."

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This application provides an ultrasonic probe, comprising: a housing assembly; an acoustic component housed within the housing assembly; a drive assembly housed within the housing assembly and connected to the acoustic component, and capable of reciprocating relative to the housing assembly to drive the acoustic component to oscillate reciprocally; and a transmission assembly housed within the housing assembly, comprising: a first transmission mechanism configured to rotatably relative to the housing assembly; and a second transmission mechanism drivenly connected to the first transmission mechanism and rotatable under the drive of the first transmission mechanism, with a portion of the second transmission mechanism fixedly connected to the drive assembly; when the first transmission mechanism is driven to rotate, the first transmission mechanism drives the second transmission mechanism to rotate, thereby driving the drive assembly to reciprocate, thus driving the acoustic component to oscillate reciprocally.

[0020] In some embodiments, the second transmission mechanism includes: a first rack disposed on the drive assembly; a second rack disposed on the drive assembly and disposed opposite to the first rack; and a gear embedded between the first rack and the second rack, the gear meshing with the first rack and the second rack respectively, and the gear is also connected to the first transmission mechanism and rotates synchronously with the rotation of the first transmission mechanism; when the gear rotates, the gear drives the first rack and the second rack to reciprocate in opposite directions relative to each other, so that the drive assembly drives the acoustic component to oscillate back and forth.

[0021] In some embodiments, the drive assembly includes: a drive belt that crosses and is connected to the acoustic assembly; two elastic members, one end of each elastic member being connected to one of the two ends of the drive belt; a first movable shaft connected to one of the two elastic members; and a second movable shaft parallel to the first movable shaft and connected to the other of the two elastic members; a first rack is disposed on the first movable shaft, a second rack is disposed on the second movable shaft, and the first and second movable shafts are reciprocating within the housing assembly under the drive of a second transmission mechanism to drive the drive belt to reciprocate, thereby driving the acoustic assembly to oscillate back and forth.

[0022] In some embodiments, there are two drive belts, and the acoustic component is provided with protrusions; each drive belt is connected to the acoustic component through the protrusions provided on the acoustic component.

[0023] In some embodiments, the first movable shaft includes: a first body connected to one of two elastic members; and a first transmission part extending along the first body in a direction away from the elastic member, with a first rack disposed on the first transmission part; and a second movable shaft parallel to the first movable shaft, including: a second body parallel to the first body and connected to the other of the two elastic members; and a second transmission part extending along the second body in a direction away from the elastic member, with a second rack disposed on the second transmission part.

[0024] In some embodiments, the first rack is fixed to the end face of the first transmission part facing the second transmission part, and the second rack is fixed to the end face of the second transmission part facing the first transmission part.

[0025] In some embodiments, the first transmission mechanism includes: a first transmission shaft configured to be rotatable relative to the housing assembly; a first bevel gear sleeved on and connected to the first transmission shaft; a second bevel gear meshing with the first bevel gear; and a second transmission shaft, wherein the second bevel gear is sleeved on the second transmission shaft, the second transmission shaft is connected to the second bevel gear, and is connected to the second transmission mechanism in a transmission manner; when the first transmission shaft rotates relative to the housing assembly, the first transmission shaft drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, so that the second transmission shaft rotates synchronously with the rotation of the second bevel gear, thereby driving the second transmission mechanism to rotate.

[0026] In some embodiments, the ultrasonic probe further includes a drive motor connected to a first transmission mechanism to provide power to the first transmission mechanism, and the output shaft of the drive motor is connected to the first transmission shaft via a coupling.

[0027] In some embodiments, the first transmission mechanism further includes a first bearing and a second bearing, and the first bearing and the second bearing are sequentially connected to one end of the first transmission shaft.

[0028] In some embodiments, the second transmission mechanism further includes: a bearing bracket; and two third bearings connected to the second transmission shaft and mounted on the bearing bracket; wherein the two third bearings are sequentially connected to the end of the second transmission shaft away from the first bevel gear.

[0029] In some embodiments, the first drive shaft and the first bevel gear are separately configured, the second drive shaft and the second bevel gear are separately configured, the first bevel gear is fixedly connected to the first drive shaft, and the second bevel gear is fixedly connected to the second drive shaft; or the first drive shaft and the first bevel gear are integrally configured, and the second drive shaft and the second bevel gear are integrally configured.

[0030] In some embodiments, the ultrasound probe further includes a drive motor connected to the first transmission mechanism, and the drive motor has a motor output shaft; the first transmission mechanism includes: a first bevel gear sleeved on the motor output shaft; a second bevel gear drivingly connected to the first bevel gear; and a transmission shaft, the second bevel gear sleeved on the transmission shaft, the transmission shaft connected to the second bevel gear, and drivingly connected to the second transmission mechanism; when the motor drive shaft rotates, it drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, so that the transmission shaft rotates synchronously with the rotation of the second bevel gear, thereby driving the second transmission mechanism to rotate.

[0031] In some embodiments, the housing assembly includes a sound window, a first housing, and a second housing connected in sequence; an acoustic component is housed within the sound window; a drive component is partially housed within the first housing and partially housed within the second housing; and a transmission component is housed within the second housing.

[0032] In some embodiments, the ultrasonic probe further includes: a head base disposed on the side of the second housing away from the acoustic window; a drive assembly including: two drive belts, one end of each drive belt connected to the acoustic assembly; two elastic members, one end of each elastic member connected to the other end of the corresponding drive belt; a first movable shaft extending out of the head base and connected to one of the two elastic members; and a second movable shaft parallel to the first movable shaft, extending out of the head base and connected to the other of the two elastic members; the first and second movable shafts are fixedly connected to a second transmission mechanism and reciprocate relative to each other in opposite directions under the drive of the second transmission mechanism.

[0033] In some embodiments, the headstock base has two through holes, which penetrate the headstock base along its thickness direction and are spaced apart from each other. The first movable shaft includes: a first main body, which passes through the corresponding through hole on the headstock base and is reciprocating within the through hole, and is connected to one of the two elastic members; and a first transmission part, which extends along the first main body in a direction away from the elastic member and is located on the side of the headstock base away from the sound window. The second movable shaft includes: a second main body, which is parallel to the first main body, passes through the corresponding through hole on the headstock base and is reciprocating within the through hole, and is connected to the other of the two elastic members; and a second transmission part, which extends along the second main body in a direction away from the elastic member and is located on the side of the headstock base away from the sound window.

[0034] In some embodiments, each through hole is provided with a mounting groove spaced apart along the axis of the through hole, and a sealing ring is disposed in the mounting groove.

[0035] Please refer to the following: Figure 1 , Figure 1 A three-dimensional structural schematic diagram of an ultrasonic probe in one embodiment of this application is disclosed. For example... Figure 1As shown, the ultrasonic probe 100 may include an acoustic window 10, an acoustic head sensor 11 housed within the acoustic window 10, a first housing 20, a second housing 30, a tail sleeve 40, and a transmission assembly 50 (such as...) housed within the first housing 20 and the second housing 30. Figure 4 and 5 (As shown). The acoustic window 10, first housing 20, second housing 30, and tail sleeve 40 are connected sequentially. In some embodiments, the sequentially connected acoustic window 10, first housing 20, and second housing 30 can also be referred to as the housing assembly of the ultrasonic probe 100.

[0036] In some embodiments, the ultrasonic probe 100 in this application may be an intracavitary probe, also known as an intracavitary volume probe. In specific applications, the ultrasonic probe 100 in this application may be connected to an ultrasonic host (not shown in the figure). The acoustic head sensor 11, housed in the acoustic window 10, is connected to the output end of the transmission assembly 50 of the ultrasonic probe 100 and can perform reciprocating oscillating motion. During the reciprocating oscillation, the acoustic head sensor 11 can emit and receive ultrasonic waves, thereby acquiring two-dimensional image data. The ultrasonic host is electrically connected to the acoustic head sensor 11 (not shown in the figure). The ultrasonic host is used to perform calculations and processing on the two-dimensional image data received from the acoustic head sensor 11 to finally obtain a stereoscopic image.

[0037] Please see Figure 2 , Figure 2 This application discloses Figure 1 A schematic diagram of the acoustic sensor in the illustrated embodiment. Figure 2 As shown, the acoustic sensor 11 is housed within the acoustic window 10 for emitting and receiving ultrasonic waves. It is understood that the acoustic window 10 in this application can be made of other existing materials, and this application does not impose any limitations. Similarly, the specific structure of the acoustic sensor 11 in this application can be other existing structures, and this application does not impose any limitations. Furthermore, a mounting bracket 12 and a rotating support 13 located at the bottom of the mounting bracket 12 and installed within the first housing 20 are also installed within the acoustic window 10. The acoustic sensor 11 can be mounted on the top of the mounting bracket 12. Wherein, as... Figure 1-2 As shown, the top of the mounting bracket 12 refers to the side away from the first housing 20, while the bottom refers to the side adjacent to the first housing 20.

[0038] Specifically, such as Figure 2As shown, the mounting bracket 12 may include a mounting body 120, two positioning members 121 disposed on both sides of the mounting body 120, and a first mounting groove 122 disposed on the top of the mounting body 120. The two positioning members 121 can be mounted on a rotating bracket 13. In some embodiments, the outer contour of the acoustic sensor 11 is generally arc-shaped. It is mounted on the mounting body 120 and spans or crosses the first mounting groove 122. Both ends of the acoustic sensor 11 are respectively mounted on the rotating bracket 13 via the two positioning members 121, thereby mounting the acoustic sensor 11 on the rotating bracket 13. In some embodiments, the acoustic sensor 11 can be attached to the mounting body 120 by means of, for example, glue. In other embodiments, the acoustic sensor 11 can also abut against the mounting body 120. In some embodiments, the first mounting groove 122 is recessed from the top surface of the mounting body 120 in a direction close to the first housing 20. Furthermore, the first mounting groove 122 is generally arc-shaped, and the extending direction of the first mounting groove 122 is generally perpendicular to the extending direction of the acoustic sensor 11. For example... Figure 2 As shown, the first mounting groove 122 is approximately located at the middle of the top of the mounting body 120, but this is not mandatory. The first mounting groove 122 can also be located at other positions on the mounting body 120, depending on the specific application requirements. In some embodiments, the length of the first mounting groove 122 along its extension direction can be greater than the width of the sensor, that is, during installation, the acoustic sensor 11 cannot completely cover the first mounting groove 122, meaning that part of the first mounting groove 122 is exposed from the acoustic sensor 11.

[0039] Please continue reading. Figure 2 The rotating bracket 13 has two positioning grooves 131 at one end facing the mounting bracket 12, which are adapted to the two positioning members 121, so that the two positioning members 121 of the mounting bracket 12 can be installed on the two positioning grooves 131 of the rotating bracket 13 respectively, thereby installing the mounting bracket 12 together with the sound sensor 11 on the rotating bracket 13.

[0040] In some embodiments, the positioning element 121 can be a pin, screw, etc., while the positioning groove 131 is a pin groove, screw hole, etc., adapted to the positioning element 121. This application does not limit the specific implementation of the positioning element 121 and the positioning groove 131.

[0041] Furthermore, the acoustic window 10 also houses two drive belts 14, one part of which is located on the mounting bracket 12 and the other part is housed within the first housing 20 (e.g., Figure 2 and 3 (As shown). One end of each of the two drive belts 14 is connected to the first mounting groove 122 of the mounting bracket 12, and the other end is installed in the first housing 20, so that the two drive belts 14 pull each other to drive the sound sensor 11 to perform reciprocating oscillating motion.

[0042] In some embodiments, a protrusion 141 is provided in the first mounting groove 122. The end of each transmission belt 14 can be fixedly connected to the mounting frame 12 through the corresponding protrusion 141, so that the two transmission belts 14 mounted on the mounting frame 12 can drive the sound sensor 11 to reciprocate oscillating motion by pulling them alternately.

[0043] In some embodiments, a single drive belt 14 can be used instead of the two drive belts 14 in the above embodiments. Specifically, the drive belt 14 can cross the first mounting groove 122 of the mounting bracket 12 and be connected to the mounting bracket 12. Further, both ends of the drive belt 14 are housed within the first housing 20. That is, a section of the drive belt 14 between one end and the mounting bracket 12 constitutes one drive belt, and a section of the pull wire between the other end of the drive belt 14 and the mounting bracket 12 constitutes another drive belt. In other words, a single drive belt 14 can be divided into two sections by the mounting bracket 12, and these two sections are respectively connected to the mounting bracket 12. It is understood that a single drive belt 14 can also be fixedly connected to the mounting bracket 12 by a protrusion 141.

[0044] Alternatively, the transmission belt 14 in this application can be any other existing structure, for example, it can be a metal wire made of multiple strands of metal wire twisted together.

[0045] In some embodiments, the acoustic sensor 11, the mounting bracket 12, and the rotating support 13 may also constitute the acoustic assembly of the ultrasonic probe 100. It is understood that in some embodiments, the acoustic assembly may also be referred to as the transducer assembly.

[0046] Please see Figure 3 , Figure 3 This application discloses Figure 1 A schematic diagram of a partial structure after removing the first shell in the illustrated embodiment. Figure 3 As shown, the first housing 20 has a first receiving cavity 201. Optionally, the first housing 20 can be made of the same material as the acoustic window 10. In this case, the first housing 20 can be integrally connected to the acoustic window 10 (i.e., integrally molded) and can extend to at least cover the end of the second housing 30. Of course, the first housing 20 can also be made of other materials, such as rubber, silicone, TPE (thermoplastic elastomer), PU (polyurethane), etc.

[0047] Please continue reading. Figure 2 and Figure 3 One section of each drive belt 14 is mounted on the mounting bracket 12 of the sound window 10, while the other section is housed in the first receiving cavity 201 of the first housing 20.

[0048] In some embodiments, the ultrasonic probe 100 further includes two elastic elements 15, two movable shafts 16, and a probe base 17. See also... Figure 2-3 Both elastic elements 15 are housed within the first accommodating cavity 201. One end of each elastic element 15 is connected to the end of the corresponding transmission belt 14, and the other end is connected to the corresponding movable shaft 16. One end of each movable shaft 16 is housed within the first accommodating cavity 201 and connected to the elastic element 15, while the other end extends out of the headstock base 17. Each movable shaft 16 can reciprocate within the first accommodating cavity 201 under the drive of the transmission assembly 50.

[0049] In other embodiments, the drive belt 14, together with two elastic elements 15 and two movable shafts 16, can form the drive assembly of the ultrasonic probe 100.

[0050] Therefore, in some embodiments of this application, the movable shaft 16 drives the elastic element 15 and the transmission belt 14 (together with the mounting bracket 12 and the acoustic sensor 11 mounted on the mounting bracket 12) to reciprocate, and the elastic element 15 can further tighten the two transmission belts 14 so that the two transmission belts 14 are always in a taut state. Thus, the transmission belts 14 can reduce the probability of the acoustic sensor 11 generating a reverse gap during the reciprocating motion.

[0051] Optionally, the two elastic elements 15 can be tension springs, or other elastic elements that tighten the two transmission belts 14 and keep them in a taut state, as long as they can achieve the above functions. This application does not impose any restrictions. The following section of this application describes the elastic element 15 as a tension spring.

[0052] In some embodiments, see Figure 3 The two movable shafts 16 generally include a first movable shaft 16a and a second movable shaft 16b arranged parallel to each other. The first movable shaft 16a includes a first body 161 and a first transmission portion 163 extending along the first body 161 in a direction away from the elastic member 15. The second movable shaft 16b includes a second body 162 and a second transmission portion 164 extending along the second body 162 in a direction away from the two elastic members 15.

[0053] In some embodiments, the first main body 161 and the second main body 162 are arranged in parallel. The first main body 161 and the second main body 162 are respectively connected to corresponding elastic members 15 and are both housed within the first receiving cavity 201. Optionally, in some embodiments, the first main body 161 and the second main body 162 may be generally smooth cylindrical. Of course, this is not mandatory; in other embodiments, the first main body 161 and the second main body 162 may also have, for example, a cuboid or other hexahedral structure. This application does not limit the specific structure of the first main body 161 and the second main body 162.

[0054] The first transmission part 163 and the second transmission part 164 are disposed on the side of the sound head base 17 away from the sound window 10 and are connected to the transmission assembly 50. Driven by the transmission assembly 50, the first transmission part 163 and the second transmission part 164 move in opposite directions, thereby driving the first main body 161 and the second main body 162 to move in opposite directions, which in turn drives the two transmission belts 14 to pull in opposite directions, thereby driving the sound head sensor 11 to perform reciprocating oscillating motion.

[0055] Furthermore, a first rack 163a is provided on the end face of the first transmission part 163 facing the second transmission part 164, and a second rack 164a is provided on the end face of the second transmission part 164 facing the first transmission part 163. The first rack 163a and the second rack 164a can be connected to the transmission assembly 50 for transmission, so that they can move in opposite directions under the drive of the transmission assembly 50.

[0056] See further Figure 3 The first transmission part 163 is further provided with a first groove 163b, and the second transmission part 164 is provided with a second groove 164b. Optionally, as follows... Figure 3 As shown, the first groove 163b and the second groove 164b can be generally rectangular slots. In some embodiments, a fastener 18, such as a limiting screw, can be installed in the first groove 163b and the second groove 164b and fixed to the head base 17. When the first rack 163a and the second rack 164a reciprocate in opposite directions, the fastener 18 can slide relative to the first groove 163b and the second groove 164b within the first groove 163b and the second groove 164b, thereby restricting the up-and-down movement of the two movable shafts 16 in a predetermined direction (e.g., Figure 4 (As shown).

[0057] In some embodiments, the acoustic head base 17 may be filled with potting fluid, which serves to fill the gap between the acoustic head sensor 11 and the acoustic window 10 to conduct ultrasonic waves. Please continue reading. Figure 3The sound head base 17 is located on the side of the first housing 20 away from the sound window 10, and two movable shafts 16 extend through both sides of the sound head base 17. Specifically, the sound head base 17 is approximately located at the connection between the first housing 20 and the second housing 30 (e.g., Figure 5 As shown in the figure, that is, part of the sound head base 17 is housed in the first accommodating cavity 201 and the other part is housed in the second housing 30.

[0058] like Figure 3 As shown, the headstock base 17 has two through holes 17a that extend through the headstock base 17 along its thickness direction (parallel to the axis of the movable shaft 16) and are spaced apart from each other. Each movable shaft 16 (specifically, the main body of the movable shaft 16, such as the first main body 161 and the second main body 162) passes through the corresponding through hole 17a into the headstock base 17, and the two movable shafts 16 (specifically, the main bodies of the movable shafts 16, such as the first main body 161 and the second main body 162) can reciprocate within the corresponding through hole 17a. In some embodiments, the through hole 17a can be a cylindrical through hole adapted to the first main body 161 and the second main body 162. It is understood that the two through holes 17a can also be through holes of other shapes, as long as the shape can satisfy the requirement that the first main body 161 and the second main body 162 of the two movable shafts 16 can reciprocate within the two through holes 17a.

[0059] See further Figure 4 Each through hole 17a also has two second mounting grooves 17b spaced apart along the axis of the through hole 17a. To reduce or even avoid the risk of leakage of potting fluid from the sound head base 17 during the reciprocating motion of the movable shaft 16 along the direction of the through hole 17a on the sound head base 17, in some embodiments, two first sealing rings 17c can be fitted in each second mounting groove 17b. In some embodiments of this application, each first sealing ring 17c can be an O-ring. Of course, in other embodiments, each first sealing ring 17c can also adopt other suitable implementation structures, as long as it can reduce or even avoid potting fluid leakage. Moreover, other numbers of second mounting grooves 17b can be formed in each through hole 17a, for example, one, three, or more than three second mounting grooves 17b. This application does not impose a specific limitation on the number of mounting grooves 17b.

[0060] It is understood that the specific structure of the sound head base 17 in this application can be other structures, and this application does not impose any restrictions.

[0061] Please refer to the following: Figures 2 to 5 , Figure 4 An exploded perspective view of the transmission assembly provided in an embodiment of this application is disclosed. Figure 5 This application discloses Figure 4A cross-sectional view of the transmission assembly housed within the first and second housings.

[0062] like Figure 5 As shown, similar to the first housing 20, the second housing 30 also has a second receiving cavity 301, and the transmission assembly 50 can be accommodated in the second receiving cavity 301.

[0063] like Figure 4 and 5 As shown, the transmission assembly 50 generally includes a drive motor 51, a coupling 52 connected to the drive motor 51, a first transmission mechanism 53 connected to the coupling 52, and a second transmission mechanism 54 that is drively connected to the first transmission mechanism 53. The second transmission mechanism 54 is also drively connected to the first rack 163a of the first transmission section 163 and the second rack 164a of the second transmission section 164 of the two movable shafts 16.

[0064] The drive motor 51 can provide pivoting power to the first transmission mechanism 53 through the coupling 52. Then, the first transmission mechanism 53 transmits the provided pivoting power to the second transmission mechanism 54, which is connected to the first transmission mechanism 53. This allows the two movable shafts 16 connected to the second transmission mechanism 54 to reciprocate along the two through holes 17a on the head base 17.

[0065] In some embodiments, the drive motor 51 may be mounted on a motor mounting bracket 51a. Optionally, the drive motor 51 may be a stepper motor.

[0066] The drive motor 51 may include a motor output shaft 511. The motor output shaft 511 can be inserted into and rotatably connected to the coupling 52. Figure 5 As shown, in some embodiments of this application, the coupling 52 has a through hole 521 extending through it. The motor output shaft 511 and the first transmission mechanism 53 are both at least partially inserted into the through hole 521 of the coupling 52. Therefore, the drive motor 51 can drive the first transmission mechanism 53 to rotate via the motor output shaft 511 and the coupling 52. It is understood that the specific structure of the drive motor 51 and coupling 52 in this application can be other existing structures, and this application does not impose any limitations.

[0067] Please continue reading. Figure 4 and Figure 5 The first transmission mechanism 53 includes a first transmission shaft 53c, a first bevel gear 53a sleeved on and connected to the first transmission shaft 53c, a second bevel gear 53b transmissionally connected to the first bevel gear 53a, and a second transmission shaft 53d passing through the second bevel gear 53b. Optionally, the first bevel gear 53a and the second bevel gear 53b mesh and transmit power.

[0068] In some embodiments, a first bevel gear 53a is sleeved on a first drive shaft 53c and fixedly connected to the first drive shaft 53c. The first drive shaft 53c has a first end facing the coupling 52 and a second end disposed away from the coupling 52 and opposite to the first end. Figure 5 In the illustrated embodiment, the first end and the second end of the first drive shaft 53c are located on opposite sides of the first bevel gear 53a. The first end of the first drive shaft 53c can pass through the through hole 521 on the coupling 52, thereby achieving a transmission connection with the motor output shaft 511 of the drive motor 51. Therefore, the drive motor 51 can drive the first drive shaft 53c to rotate via the coupling 52, and drive the first bevel gear 53a fixed on the first drive shaft 53c to rotate, thereby driving the second bevel gear 53b meshing with the first bevel gear 53a to rotate.

[0069] In some embodiments, the first bevel gear 53a and the first drive shaft 53c can be separately disposed and fixedly connected to each other by, for example, an interference fit. Of course, in other embodiments, the first bevel gear 53a and the first drive shaft 53c can also be integrally formed from the same material.

[0070] In the above embodiment, a first drive shaft 53c is provided, and a first bevel gear 53a is sleeved on the first drive shaft 53c. The first drive shaft 53c and the motor output shaft 511 are connected by a coupling 52. Of course, in other embodiments, the first bevel gear 53a can also be directly mounted on the motor output shaft 511. In this case, the motor output shaft 511 is the first drive shaft 53c. Therefore, the coupling 52 and the first drive shaft 53c can be omitted.

[0071] In some embodiments, the transmission assembly 50 may further include a first bearing 55 and a second bearing 56 connected to the second end of the first transmission shaft 53c, so that the first bevel gear 53a rotates smoothly and stably. Specifically, the first bearing 55 and the second bearing 56 are sequentially connected to the other end (i.e., the second end) of the first transmission shaft 53c away from the coupling 52, and the second bearing 56 is mounted on the side of the headstock base 17 facing the second receiving cavity 301, so that the first transmission shaft 53c is connected to the headstock base 17 through the first bearing 55 and the second bearing 56. In some embodiments, when the first bevel gear 53a is directly mounted on the motor output shaft 511, the first bearing 55 and the second bearing 56 may also be sequentially connected to one end of the motor output shaft 511. Figure 4 and 5As shown, the first bearing 55 and the second bearing 56 are disposed on one side of the two transmission parts of the two movable shafts 16. In some embodiments, the first bearing 55 is a flange bearing and the second bearing 56 is a deep groove ball bearing. Of course, in other embodiments, the first bearing 55 and the second bearing 56 can also be implemented using other types of bearings.

[0072] In some embodiments, the second bevel gear 53b is sleeved on the second drive shaft 53d and fixedly connected to the second drive shaft 53d. Therefore, when the second bevel gear 53b is driven to rotate, the second drive shaft 53d can rotate synchronously with the rotation of the second bevel gear 53b. In some embodiments, the second bevel gear 53b is sleeved on the end of the second drive shaft 53d adjacent to the first bevel gear 53a. In some embodiments, the second bevel gear 53b and the second drive shaft 53d can be separately disposed and fixedly connected to each other by, for example, an interference fit. Of course, in other embodiments, the second bevel gear 53b and the second drive shaft 53d can also be integrally formed from the same material.

[0073] In some embodiments, the transmission assembly 50 may further include a bearing bracket 57 mounted on the headstock base 17 and two third bearings 58 connected to the second transmission shaft 53d. The two third bearings 58 are sequentially connected to the end of the second transmission shaft 53d away from the first bevel gear 53a and mounted on the bearing bracket 57, thereby ensuring smooth rotation of the second bevel gear 53b. Specifically, the bearing bracket 57 mounted on the headstock base 17 is located on the opposite side of the two transmission parts of the two movable shafts 16 away from their respective main bodies. That is, the first bearing 55 and the second bearing 56, the two transmission parts of the two movable shafts 16, and the bearing bracket 57 are located on the same side of the headstock base 17 facing the second accommodating cavity 301. Optionally, the bearing bracket 57 is a flange bearing bracket, and fasteners 19, such as pan head screws, can be used to fix the bearing bracket 57 to the headstock base 17.

[0074] In some embodiments of this application, the third bearing 58 may adopt the same structure as the first bearing 55, that is, the third bearing 58 may be a flange bearing. Of course, in other embodiments, the third bearing 58 may also adopt other bearing structures. This application does not limit the specific implementation of the third bearing.

[0075] Continue reading Figure 4 and Figure 5 The second transmission mechanism 54 may include a gear 54a connected to the first transmission mechanism 53 and two racks (i.e., a first rack 163a and a second rack 164a) that are drively connected to the gear 54a. Optionally, the gear 54a meshes with the first rack 163a and the second rack 164a respectively.

[0076] Specifically, gear 54a is mounted on the end of the second drive shaft 53d of the first transmission mechanism 53 away from the first bevel gear 53a, and gear 54a can, for example, be interference-fitted with the second drive shaft 53d, thereby allowing gear 54a to rotate synchronously with the rotation of the second drive shaft 53d. Optionally, such as Figure 5 As shown, gear 54a is located between two third bearings 58, thereby strengthening the connection between gear 54a and second bevel gear 53b, ensuring that gear 54a can rotate together with second bevel gear 53b when the second bevel gear 53b is driven to rotate.

[0077] Furthermore, such as Figure 5 As shown, gear 54a is embedded between the first rack 163a and the second rack 164a, and the first rack 163a and the second rack 164a are also located between the two first bearings 55 of the second bevel gear 53b. Furthermore, both the first rack 163a and the second rack 164a mesh with gear 54a for transmission, and the first rack 163a and the second rack 164a are arranged opposite to each other. Thus, when gear 54a rotates together with the second bevel gear 53b, gear 54a drives the first rack 163a and the second rack 164a to reciprocate in opposite directions, thereby driving the two movable shafts 16 to reciprocate along the two through holes 17a of the sound head base 17. Since the two transmission belts 14 are connected to the two movable shafts 16 through two elastic elements 15, they then drive the two transmission belts 14 to drive the sound head sensor 11 to oscillate back and forth.

[0078] In some embodiments, such as Figure 4 and 5 As shown, the gear 54a in the second transmission mechanism 54 meshes with the first rack 163a and the second rack 164a for transmission. When the second bevel gear 53b drives the gear 54a to rotate, one movable shaft 16 moves along the first direction, and the other movable shaft 16 moves along the second direction opposite to the first direction. The two movable shafts 16 move equal distances, thereby ensuring that the sound sensor 11 rotates smoothly on the mounting bracket 12.

[0079] In some embodiments, the gear ratio between the first bevel gear 53a and the second bevel gear 53b in the first transmission mechanism 53 can be adjusted. Simultaneously, the size of gear 54a in the second transmission mechanism 54 can also be adjusted, thereby changing the mechanical transmission ratio from the drive motor 51 to the acoustic sensor 11, and consequently changing the driving force between the drive motor 51 and the acoustic sensor 11.

[0080] Please participate as well. Figures 4 to 6 , Figure 6 Revealed Figure 5 A schematic diagram of the assembly of the central sealing cover and the sound head base. (See diagram below.) Figure 5As shown, in some embodiments, the ultrasonic probe 100 may further include a sealing cover 61 connected to the head base 17. The sealing cover 61 may cover the head base 17 and form a third accommodating cavity 601 with one end face of the head base 17. At least a portion of the first transmission shaft 53c of the first transmission mechanism 53, the first bevel gear 53a, the second bevel gear 53b, the second transmission shaft 53d, and the gears 54a and the first rack 163a and the second rack 164a of the second transmission mechanism 54, the first bearing 55, the second bearing 56, the third bearing 58, and the bearing support 57 may all be accommodated within the third accommodating cavity 601. In practical applications, to ensure smooth transmission between the gears and racks, lubricant or grease is usually placed between the bevel gears, gears, and rack support. Therefore, in some embodiments, such as... Figure 6 As shown, a second sealing ring 62 is provided at the mating position between the sealing cover 61 and the first bevel gear 53a, and the connection between the sealing cover 61 and the probe base 17 is sealed with glue to prevent the aforementioned lubricant or grease from flowing out of the sealing cover 61 and leaking into other locations inside the probe. In some embodiments, the second sealing ring 62 can be an O-ring.

[0081] In some embodiments, see Figure 5 The ultrasonic probe 100 may further include a light-shielding plate 63 located between the sealing cover 61 and the coupling 52, and a photoelectric sensor 64 disposed on one side of the light-shielding plate 63. The light-shielding plate 63 is fixedly mounted on the photoelectric sensor 64. Optionally, the light-shielding plate 63 may have an elongated groove to allow the photoelectric sensor 64 to detect the rotational position of the drive motor 51.

[0082] In specific work processes, the working principle of the ultrasonic probe 100 in this application is as follows.

[0083] The drive motor 51 starts and transmits pivoting power to the first drive shaft 53c of the first transmission mechanism 53 via the coupling 52, driving the first drive shaft 53c and the first bevel gear 53a on it to rotate. The first bevel gear 53a drives the second bevel gear 53b, which meshes with the first bevel gear 53a, to rotate. This, in turn, drives the second drive shaft 53d, which is fixedly connected to the second bevel gear 53b, and the gear 54a fixed on the second drive shaft 53d to rotate together. Then, the gear 54a drives the first rack 163a and the second rack 164a on the two movable shafts 16 to move in opposite directions relative to each other. Furthermore, the relative movement between the first rack 163a and the second rack 164a drives the two movable shafts 16 to reciprocate along the direction of the two through holes 17a of the sound head base 17, thereby driving the two transmission belts 14, which are connected to the two movable shafts 16 by two elastic elements 15, to drive the sound head sensor 11 to swing back and forth. Thus, the reciprocating rotation of the drive motor 51 is converted into the up-and-down movement of the two movable shafts 16 through the first transmission mechanism 53 and the second transmission mechanism 54 in the transmission assembly 50, and further converted into the reciprocating oscillation of the sound head sensor 11.

[0084] The transmission assembly 50 in the ultrasonic probe 100 of this application uses a first bevel gear 53a and a second bevel gear 53b as a primary transmission mechanism, and a gear 54a and a first rack 163a and a second rack 164a of the two movable shafts 16 as a secondary transmission mechanism. This converts the reciprocating rotational motion of the drive motor 51 into linear reciprocating motion of the two movable shafts 16 via the first transmission mechanism 53 and the second transmission mechanism 54 in the transmission assembly 50, which in turn converts it into reciprocating oscillation of the acoustic sensor 11. Furthermore, the transmission assembly 50 changes the mechanical transmission ratio from the drive motor 51 to the acoustic sensor 11 by altering the tooth ratio of the first bevel gear 53a to the second bevel gear 53b and the size of the gear 54a.

[0085] In addition, such as Figure 5As shown, the first transmission mechanism 53 and the second transmission mechanism 54, as well as bearings and other components in the transmission assembly 50, are all located on the outside of the acoustic head base 17, that is, on the side facing the second accommodating cavity 301. For example, the first bevel gear 53a, the second bevel gear 53b, the first bearing 55, the second bearing 56, and the bearing bracket 57 are all located on the outside of the acoustic head base 17. This structural design can prevent the transmission assembly 50 from being immersed in the potting fluid, ensuring that dust from long-term friction between the first bevel gear 53a, the second bevel gear 53b, bearings, and other components does not mix into the potting fluid, thus guaranteeing the purity of the potting fluid and ensuring that the ultrasonic probe 100 still has good detection performance after long-term operation. Furthermore, in this application, some of the first bevel gear 53a, the second bevel gear 53b, the first bearing 55, and the bearing bracket 57 are enclosed in the third accommodating cavity 601 of the sealing cover 61, thereby effectively ensuring the smooth movement of the gears and guide wheels in the transmission assembly 50, while also preventing lubricating oil or grease from leaking into other parts of the ultrasonic probe 100.

[0086] Therefore, the ultrasonic probe 100 in this application uses a two-stage transmission to convert the reciprocating rotation of the drive motor 51 into the reciprocating motion of two movable shafts 16, which is then converted into the reciprocating oscillation of the head sensor 11. Its structure is novel, and it does not require the drive motor 51, such as a stepper motor, to have higher performance requirements in order to realize the detection function of the ultrasonic probe 100. At the same time, the structural design of the ultrasonic probe 100 in this application also avoids the transmission belt, gears, guide wheels, bearings and other components from being immersed in the potting fluid in the head base 17, effectively ensuring the purity of the potting fluid, and also ensuring that the ultrasonic probe 100 still has good detection effect after long-term operation.

[0087] This application also provides an ultrasound imaging device 300 in some embodiments. Please refer to... Figure 7 , Figure 7 A schematic diagram of the ultrasonic imaging device in an embodiment of this application is shown. Figure 7 As shown, the ultrasound imaging device 300 disclosed in this application includes: an ultrasound host 200 and an ultrasound probe 100 connected to the ultrasound host 200. The ultrasound probe 100 can be any of the ultrasound probes 100 described in the above embodiments. The ultrasound imaging device 300 of this embodiment has the same beneficial effects as the ultrasound probe 100 provided in this embodiment, and will not be described again here.

[0088] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An ultrasonic probe, characterized in that, include: Housing assembly; Acoustic components are housed within the housing assembly; A drive component is housed within the housing assembly and connected to the acoustic component, and is reciprocating relative to the housing assembly to drive the acoustic component to oscillate back and forth. as well as The transmission assembly, housed within the housing assembly, includes: A first transmission mechanism is configured to be rotatable relative to the housing assembly; and The second transmission mechanism is connected to the first transmission mechanism and can rotate under the drive of the first transmission mechanism, and a part of the second transmission mechanism is fixedly connected to the drive assembly; When the first transmission mechanism is driven to rotate, the first transmission mechanism drives the second transmission mechanism to rotate, thereby driving the drive component to reciprocate, which in turn drives the acoustic component to oscillate back and forth. The driving component includes: A drive belt that crosses over and is connected to the acoustic component; Two elastic elements, one end of each of the elastic elements being connected to one of the two ends of the transmission belt; A first movable shaft is connected to one of the two elastic elements; and The second movable axis is parallel to the first movable axis and is connected to the other of the two elastic elements; The first and second movable shafts can reciprocate within the housing assembly under the drive of the second transmission mechanism, thereby driving the transmission belt to reciprocate and in turn driving the acoustic component to oscillate back and forth. The two elastic elements, the first movable shaft, the second movable shaft, and the transmission belt located between the acoustic component and the elastic elements are all arranged in a straight line.

2. The ultrasonic probe according to claim 1, characterized in that, The second transmission mechanism includes: A first rack is disposed on the drive assembly; A second rack is disposed on the drive assembly and is positioned opposite to the first rack; and A gear is fitted between the first rack and the second rack, the gear meshes with the first rack and the second rack respectively, and the gear is also connected to the first transmission mechanism and rotates synchronously with the rotation of the first transmission mechanism; When the gear rotates, it drives the first rack and the second rack to reciprocate in opposite directions relative to each other, so that the drive assembly drives the acoustic assembly to oscillate back and forth.

3. The ultrasonic probe according to claim 2, characterized in that, The first rack is mounted on the first movable shaft, and the second rack is mounted on the second movable shaft.

4. The ultrasonic probe according to claim 3, characterized in that, The first active axis includes: The first part is connected to one of the two elastic elements; and A first transmission part is provided extending along the first main part in a direction away from the elastic member, and the first rack is provided on the first transmission part; and The second movable axis is parallel to the first movable axis and includes: The second main body is arranged parallel to the first main body and connected to the other of the two elastic members; and The second transmission part extends along the second main part in a direction away from the elastic member, and the second rack is disposed on the second transmission part.

5. The ultrasonic probe according to claim 4, characterized in that, The first rack is fixed on the end face of the first transmission part facing the second transmission part, and the second rack is fixed on the end face of the second transmission part facing the first transmission part.

6. The ultrasonic probe according to claim 1, characterized in that, The first transmission mechanism includes: A first drive shaft is configured to rotate relative to the housing assembly; The first bevel gear is sleeved on the first drive shaft and connected to the first drive shaft; The second bevel gear meshes with the first bevel gear for transmission; and The second drive shaft, the second bevel gear is sleeved on the second drive shaft, the second drive shaft is connected to the second bevel gear, and is connected to the second transmission mechanism in a transmission connection; When the first drive shaft rotates relative to the housing assembly, the first drive shaft drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, so that the second drive shaft rotates synchronously with the rotation of the second bevel gear, thereby driving the second transmission mechanism to rotate.

7. The ultrasonic probe according to claim 6, characterized in that, Also includes: A drive motor is connected to the first transmission mechanism to provide power to the first transmission mechanism, and the output shaft of the drive motor is connected to the first transmission shaft via a coupling.

8. The ultrasonic probe according to claim 6, characterized in that, The first transmission mechanism further includes a first bearing and a second bearing, and the first bearing and the second bearing are sequentially connected to one end of the first transmission shaft.

9. The ultrasonic probe according to claim 6, characterized in that, The second transmission mechanism also includes: Bearing bracket; and Two third bearings are connected to the second drive shaft and mounted on the bearing bracket; The two third bearings are connected sequentially to the end of the second drive shaft away from the first bevel gear.

10. The ultrasonic probe according to claim 6, characterized in that, The first drive shaft and the first bevel gear are separately configured, and the second drive shaft and the second bevel gear are separately configured. The first bevel gear is fixedly connected to the first drive shaft, and the second bevel gear is fixedly connected to the second drive shaft; or The first drive shaft and the first bevel gear are integrally formed, and the second drive shaft and the second bevel gear are integrally formed.

11. The ultrasonic probe according to claim 1, characterized in that, It also includes a drive motor connected to the first transmission mechanism, and the drive motor has a motor output shaft; The first transmission mechanism includes: The first bevel gear is sleeved on the output shaft of the motor; The second bevel gear is connected to the first bevel gear in a transmission manner; and A drive shaft, the second bevel gear is sleeved on the drive shaft, the drive shaft is connected to the second bevel gear, and is also connected to the second transmission mechanism in a transmission connection; When the motor drive shaft rotates, it drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, so that the transmission shaft rotates synchronously with the rotation of the second bevel gear, thereby driving the second transmission mechanism to rotate.

12. An ultrasonic probe, characterized in that, include: Housing assembly; Acoustic components are housed within the housing assembly; A drive component is housed within the housing assembly and connected to the acoustic component, and is reciprocating relative to the housing assembly to drive the acoustic component to oscillate back and forth. as well as The transmission assembly, housed within the housing assembly, includes: A first transmission mechanism, configured to be rotatable relative to the housing assembly; and The second transmission mechanism is connected to the first transmission mechanism and can rotate under the drive of the first transmission mechanism, and a part of the second transmission mechanism is fixedly connected to the drive assembly; When the first transmission mechanism is driven to rotate, the first transmission mechanism drives the second transmission mechanism to rotate, thereby driving the drive component to reciprocate, which in turn drives the acoustic component to oscillate back and forth. The housing assembly includes a sound window, a first housing, and a second housing connected in sequence; Also includes: The sound head base is located on the side of the second housing away from the sound window; The driving component includes: Two drive belts, one end of each drive belt being connected to the acoustic component; Two elastic elements, one end of each elastic element being connected to the other end of the corresponding transmission belt; A first movable shaft extends out of the sound head base and connects to one of the two elastic elements; and The second movable shaft, parallel to the first movable shaft, extends out of the sound head base and is connected to the other of the two elastic elements. The first movable shaft and the second movable shaft are fixedly connected to the second transmission mechanism, and reciprocate relative to each other in opposite directions under the drive of the second transmission mechanism; The two elastic elements, the first movable shaft, the second movable shaft, and the transmission belt located between the acoustic component and the elastic elements are all arranged in a straight line.

13. The ultrasonic probe according to claim 12, characterized in that, The acoustic component is provided with protrusions; each of the transmission belts is connected to the acoustic component through the protrusions provided on the acoustic component.

14. The ultrasonic probe according to claim 12, characterized in that, The acoustic components are housed within the acoustic window; The drive assembly is partially housed within the first housing and partially housed within the second housing; and The transmission assembly is housed within the second housing.

15. The ultrasonic probe according to claim 12, characterized in that, The sound head base is provided with two through holes, which penetrate the sound head base along the thickness direction and are spaced apart from each other; The first movable axis includes: The first part is inserted into a corresponding through hole on the sound head base, and can reciprocate within the through hole, and is connected to one of the two elastic elements; and The first transmission part extends along the first main part in a direction away from the elastic member and is located on the side of the sound head base away from the sound window; The second movable axis includes: The second part, arranged parallel to the first part, passes through a corresponding through hole on the sound head base and can reciprocate within the through hole, and is connected to the other of the two elastic elements; and The second transmission unit extends along the second main body in a direction away from the elastic member and is located on the side of the sound head base away from the sound window.

16. The ultrasonic probe according to claim 15, characterized in that, Each of the through holes is provided with a mounting groove spaced apart along the axis of the through hole, and a sealing ring is disposed in the mounting groove.

17. An ultrasonic imaging device, characterized in that, include: Ultrasound main unit; and The ultrasonic probe according to any one of claims 1-11, or the ultrasonic probe according to any one of claims 12-16, wherein the ultrasonic probe is connected to the ultrasonic host.

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