Rope transmission device, ultrasonic probe and ultrasonic equipment

Abstract

The present application relates to the technical field of medical devices. The embodiments of the present application provide a rope transmission device, an ultrasonic probe, and an ultrasonic device. In the rope transmission device, ultrasonic probe, and ultrasonic device, the rope transmission device includes at least a driving wheel, a driven wheel, a rope, and at least one elastic member. By disposing an elastic member in the corresponding wheel body, at least one end of the rope in the rope transmission device is connected to the corresponding wheel body via the elastic member. Furthermore, by disposing an extension channel corresponding to the receiving cavity, the rope extends into the receiving cavity through the extension channel and connects with the elastic member. Thus, during use, the elastic member can provide an elastic force acting on the rope. The presence of the extension channel can improve the stress on the elastic member and prevent the elastic member from bending, thereby allowing the rope to be transmitted in a tensioned state, avoiding the impact of rope wear and elastic member bending on transmission accuracy, thereby improving transmission accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a rope transmission device, an ultrasonic probe, and an ultrasonic device. Background Art

[0002] In the related art, a rope transmission device is used in an ultrasonic probe to control the posture of the ultrasonic head. However, when the rope transmission device transmits power, there is a problem that the transmission accuracy is difficult to control. Summary of the Invention

[0003] Based on this, it is necessary to provide a rope transmission device, an ultrasonic probe and an ultrasonic device to improve transmission accuracy.

[0004] According to one aspect of the present application, an embodiment of the present application provides a rope transmission device for an ultrasonic probe, the rope transmission device comprising:

[0005] A driving wheel, a driven wheel and a rope, wherein the driving wheel is connected to the driven wheel by means of the rope; and

[0006] at least one elastic member, wherein at least one end of the rope is elastically connected to a corresponding wheel body of the driving wheel and the driven wheel by means of the elastic member;

[0007] Wherein, the wheel body elastically connected to the rope is provided with a receiving cavity corresponding to the elastic member one-to-one, and an extension channel corresponding to the receiving cavity one-to-one;

[0008] The elastic member is accommodated in the accommodating cavity; one end of the rope elastically connected to the wheel body extends into the accommodating cavity through the extension channel and is connected to the corresponding elastic member.

[0009] In one embodiment, the elastic force direction of the elastic member and the extension direction of the extension channel are collinear with each other.

[0010] In one embodiment, the axis of the elastic member and the axis of the extension channel are collinear with each other.

[0011] In one embodiment, the extension channel includes a straight line segment;

[0012] A ratio of the length of the straight section to the diameter of the rope passing through the straight section is greater than 1.5.

[0013] In one embodiment, there are two elastic members.

[0014] In one embodiment, the two elastic members are both disposed in the driving wheel.

[0015] In one embodiment, the two elastic members are arranged on both sides of the radial reference surface of the driving wheel;

[0016] The radial reference plane is a plane passing through the central axis of the driving wheel.

[0017] In one embodiment, the two elastic members are symmetrically arranged on both sides of the radial reference plane.

[0018] In one embodiment, the extension directions of the extension channels corresponding to the two elastic members are arranged at an angle.

[0019] In one embodiment, the extension channel has a first end connected to the corresponding receiving cavity and a second end away from the corresponding receiving cavity;

[0020] The first ends of the two extension channels extend obliquely away from each other, and the second ends of the two extension channels are arranged to face each other.

[0021] In one embodiment, the second ends of the two extension channels are arranged to face each other and communicate with each other.

[0022] In one embodiment, a partition is defined between the two extension channels;

[0023] The end of the partition portion includes a first arc transition section.

[0024] In one embodiment, a second arc transition section is formed between the second end of the extension channel and the corresponding periphery of the wheel body.

[0025] In one embodiment, the two second arc transition segments are symmetrically arranged on both sides of the radial reference plane.

[0026] In one embodiment, the rope transmission device further includes a guide member disposed in the receiving cavity;

[0027] The guide member is used to guide the posture of the elastic member along the direction of the elastic force on the elastic member.

[0028] In one embodiment, the elastic member is sleeved outside the guide member;

[0029] The guide piece is sleeved outside the corresponding end of the rope extending into the receiving cavity, and can limit the corresponding end of the rope to be located in the receiving cavity.

[0030] In one embodiment, the rope is provided with two;

[0031] Each of the ropes is connected between the driving wheel and the driven wheel.

[0032] According to another aspect of the present application, an embodiment of the present application provides an ultrasonic probe, comprising:

[0033] A rope transmission as described above; and

[0034] The acoustic head is used to transmit and receive ultrasonic signals; the acoustic head is connected to the driven wheel.

[0035] In one embodiment, the ultrasonic probe further comprises:

[0036] a housing, one end of which is provided with the acoustic head, and the interior of which is provided with the rope transmission device; and

[0037] The driving device is arranged in the housing; the driving device is connected to the driving wheel in a transmission manner.

[0038] In one embodiment, the driving device includes a driving member fixed in the housing, and a gear set in transmission connection with the driving member;

[0039] The output end of the gear set is transmission-connected to the driving wheel.

[0040] In one embodiment, the gear set includes a first bevel gear drivingly connected to the driving member, and a second bevel gear meshing with the first bevel gear;

[0041] The second bevel gear is connected to the driving wheel via a transmission shaft to drive the driving wheel to rotate around the axis of the transmission shaft.

[0042] In one embodiment, the housing has a gripping section and an extending section sequentially connected along the longitudinal direction of the housing;

[0043] The driving device is arranged at the junction of the holding section and the extending section, the acoustic head is arranged at one end of the extending section away from the holding section, and the rope transmission device is arranged in the extending section.

[0044] In one embodiment, along the longitudinal direction, the cross-sectional area of ​​the extending section is smaller than the cross-sectional area of ​​the gripping section.

[0045] In one embodiment, a limiting structure is provided in the housing;

[0046] The limiting structure is used to gather the rope between the driving wheel and the driven wheel.

[0047] According to another aspect of the present application, an embodiment of the present application provides an ultrasonic device, including:

[0048] The ultrasonic probe as described above; and

[0049] An ultrasonic device body electrically connected to the ultrasonic probe.

[0050] In the aforementioned rope transmission device, ultrasonic probe, and ultrasonic equipment, the rope transmission device includes at least a driving pulley, a driven pulley, a rope, and at least one elastic member. The elastic member is disposed within the corresponding pulley body, elastically connecting at least one end of the rope to the corresponding pulley body via the elastic member. Furthermore, an extension channel is provided corresponding to the receiving cavity, allowing the rope to extend into the receiving cavity through the extension channel and connect with the elastic member. Thus, during use, the elastic member can provide an elastic force acting on the rope, and the presence of the extension channel can improve the stress applied to the elastic member and prevent bending of the elastic member, thereby allowing the rope to be transmitted in a tensioned state, avoiding the impact of rope wear and bending of the elastic member on transmission accuracy, thereby improving transmission accuracy.

[0051] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the accompanying drawings to represent the same components.

[0053] In the attached figure:

[0054] Figure 1 Schematic diagram of the structure of a rope transmission device in one embodiment of the present application;

[0055] Figure 2 This is a schematic diagram of the structure of the driving wheel and the rope in one embodiment of the present application;

[0056] Figure 3 This is a schematic structural diagram of a driving wheel in a cross-sectional state cooperating with a rope in one embodiment of the present application;

[0057] Figure 4 This is a schematic cross-sectional view of a driving wheel in one embodiment of the present application;

[0058] Figure 5 Schematic diagram of the structure of an ultrasonic probe in one embodiment of the present application;

[0059] Figure 6 This is a schematic diagram of a partial structure of an ultrasonic probe at one viewing angle in one embodiment of the present application;

[0060] Figure 7This is a schematic diagram of a portion of the structure of an ultrasonic probe from another perspective in one embodiment of the present application;

[0061] Figure 8 This is a schematic structural diagram of the cooperation between the transducer and the driven wheel at one viewing angle in one embodiment of the present application;

[0062] Figure 9 This is a schematic structural diagram of the cooperation between the transducer and the driven wheel from another perspective in one embodiment of the present application;

[0063] Figure 10 This is a schematic structural diagram of the cooperation between the rope transmission device and the driving device at one viewing angle in one embodiment of the present application;

[0064] Figure 11 This is a structural diagram of the cooperation between the rope transmission device and the driving device from another perspective in one embodiment of the present application.

[0065] The accompanying drawings in the specific implementation manner are as follows:

[0066] Ultrasonic probe 10;

[0067] Rope transmission device 100, driving pulley 110, driven pulley 120, rope 130, second limiting portion 131, receiving chamber Q, extension channel P, first end P1, second end P2, straight segment S, partition G, elastic member 140, guide member 150, first limiting portion 151;

[0068] Acoustic head 200, housing 210, first base 220, transducer 230, and stopper 240;

[0069] Housing 300, limiting structure 310, gripping section 301, extending section 302, second base 320;

[0070] Driving device 400, driving member 410, gear set 420, first bevel gear 421, second bevel gear 422, coupling 430;

[0071] Connecting cable 500;

[0072] Radial reference plane M, central axis L, angle α, first axis L1, second axis L2;

[0073] Length h, diameter d;

[0074] A first arc transition section R1, a second arc transition section R2;

[0075] A first direction F1, a first extending direction Y1, and a second extending direction Y2. DETAILED DESCRIPTION

[0076] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the embodiments of the present application. It should be understood that the specific embodiments described herein are merely used to explain the present application and are not intended to limit the present application. The embodiments of the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the embodiments of the present application are not limited by the specific embodiments disclosed below.

[0077] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various professional terms, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. However, unless otherwise specified, these professional terms are not limited by these terms. These terms are only used to distinguish one professional term from another professional term. For example, without departing from the scope of this application, the first end and the second end are different ends. In the description of the embodiments of the present application, the meaning of "multiple" and "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0078] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two elements or an interaction relationship between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0079] In the description of the embodiments of the present application, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0080] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0081] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0082] An ultrasonic probe is a device that transmits and receives ultrasonic waves during ultrasonic testing. The ultrasonic probe's acoustic head typically houses a transducer unit that transmits and receives signals. Driven by a drive mechanism, the transducer unit can oscillate within a specific angle. When imaging human tissue, the ultrasonic probe uses the oscillating transducer unit to capture the desired angle, producing a three-dimensional or four-dimensional image of the tissue.

[0083] Ultrasonic probes include those for use on the body surface and those for use in cavities. For intracavitary ultrasonic probes, a rope transmission is usually used to transmit long-distance rotational motion, making it easier to insert the ultrasonic probe into the cavity for use.

[0084] The inventors of this application noticed that, on the one hand, since the rope is always in a stretched state, when the drive device starts running, it will impact the acoustic head end and affect the reliability of the device; on the other hand, after a period of use, the rope will wear and become loose, thereby affecting the transmission accuracy.

[0085] In order to alleviate the problem of transmission accuracy and reliability being affected by the uncontrollable state of the rope, the inventors of the present application have discovered through research that transmission accuracy and reliability can be improved by configuring the rope to connect to the corresponding wheel body with the help of elastic members.

[0086] The inventors of this application further noted that if the elastic member is placed outside the wheel, it would require sufficient installation space to avoid interference with the ultrasonic probe housing, limiting the use of the ultrasonic probe within the cavity. Furthermore, during transmission, the elastic member could potentially bend longitudinally or transversely. This bending can generate higher stress locally, which can lead to breakage in severe cases, compromising transmission accuracy and reliability.

[0087] Based on the above considerations, in order to avoid the transmission accuracy and reliability being affected by rope wear, the inventors of this application have conducted in-depth research and designed a rope transmission device for an ultrasonic probe, in which at least one end of the rope in the rope transmission device is elastically connected to the corresponding wheel body, and an extension channel corresponding to the storage cavity containing the elastic member is provided, so that during the transmission process of the rope, the rope can be transmitted in a tensioned state, and the provided extension channel can improve the stress condition of the elastic member, thereby improving the transmission accuracy and reliability.

[0088] The rope transmission device provided in the embodiment of the present application is described below with reference to the relevant drawings.

[0089] Figure 1 A schematic structural diagram of a rope transmission device 100 according to an embodiment of the present application is shown; Figure 2 A schematic diagram of the structure of the driving wheel 110 and the rope 130 in cooperation with each other in one embodiment of the present application is shown; Figure 3 A schematic structural diagram of the driving wheel 110 in a cross-sectional state cooperating with the rope 130 in one embodiment of the present application is shown;

[0090] Figure 4 A schematic cross-sectional view of the driving wheel 110 in an embodiment of the present application is shown; for ease of explanation, only the portion related to the embodiment of the present application is shown.

[0091] In some embodiments, please refer to Figures 1 to 4 , an embodiment of the present application provides a rope transmission device 100 for an ultrasonic probe. The rope transmission device 100 includes a driving wheel 110, a driven wheel 120, a rope 130 and at least one elastic member 140. The driving wheel 110 is transmission-connected to the driven wheel 120 by means of the rope 130. At least one end of the rope 130 is elastically connected to the corresponding wheel body of the driving wheel 110 and the driven wheel 120 by means of an elastic member 140. Among them, a receiving cavity Q corresponding to the elastic member 140 and an extension channel P corresponding to the receiving cavity Q are provided in the wheel body elastically connected to the rope 130. The elastic member 140 is accommodated in the receiving cavity Q. One end of the rope 130 elastically connected to the wheel body extends into the receiving cavity Q through the extension channel P and connects with the corresponding elastic member 140.

[0092] The rope transmission device 100 is used to transmit the driving force of other components in the ultrasonic probe (such as the driving device 400 shown later) to the acoustic head 200 to realize the rotation of the transducer 230 in the acoustic head 200. The driving force is transmitted to the driven wheel 120 via the driving wheel 110 and the rope 130. The rope 130 transmission has good flexibility, making the transmission process smoother and avoiding noise, vibration and impact. As for the acoustic head 200, it can be flexibly bent to avoid damage to the acoustic head 200 during use. Figure 1 For example, the driven wheel 120 is shown as being connected to the acoustic head 200 in a transmission manner. Of course, other power transmission devices may be provided between the driven wheel 120 and the acoustic head 200 according to usage requirements, and this embodiment of the present application does not impose any specific limitation on this.

[0093] The phrase "the driving wheel 110 is transmission-connected to the driven wheel 120 via a rope 130" can include one or two ropes 130. The ropes 130 can be connected to the driving wheel 110 and the driven wheel 120 directly or via an elastic member 140. For example, if there is only one rope 130, the rope 130 can be wrapped around the driven wheel 120, with anchor points provided on the driven wheel 120 to prevent relative slippage between the ropes 130 and the driven wheel 120. Both ends of the rope 130 are connected to the driving wheel 110. In this case, at least one end of the rope 130 is elastically connected to the driving wheel 110 via the elastic member 140. For another example, if there are two ropes 130, each rope 130 is connected between the driving wheel 110 and the driven wheel 120. That is, one end of each rope 130 is connected to the driving wheel 110, and the other end of each rope 130 is connected to the driven wheel 120. When the driving wheel 110 is driven, the rope 130 connected to the driving wheel 110 can be driven to move, and then the driven wheel 120 connected to the rope 130 can be driven to move, thereby realizing the transmission connection between the driving wheel 110 and the driven wheel 120.

[0094] It is understood that the number and arrangement of the fixing points during direct fixing can be determined by the number of ropes 130 and the specific installation method. In addition, the number of ropes 130 can be determined based on the required transmission accuracy and the structure and arrangement of the driving wheel 110 and the driven wheel 120, and this embodiment of the present application does not impose any specific limitations on this.

[0095] by Figure 1For example, a situation in which two ropes 130 are provided is illustrated, and one end of the two ropes 130 is fixedly connected to the driven wheel 120. The two fixed points on the driven wheel 120 are located on both sides of the plane passing through the rotation axis of the driving wheel 110 and the rotation axis of the driven wheel 120. Of course, the two fixed points can also coincide with one point, and can be set according to the specific usage. Whether it is one rope 130 or two ropes 130, as long as the portion of the rope 130 located between the driving wheel 110 and the driven wheel 120 can be located on both sides of the plane passing through the rotation axis of the driving wheel 110 and the rotation axis of the driven wheel 120, so as to avoid the rope 130 located between the driving wheel 110 and the driven wheel 120 from being entangled, the embodiment of the present application is not specifically limited. When the rope 130 can be prevented from being entangled when the driving wheel 110 and the driven wheel 120 are rotating, it is also possible to avoid causing nonlinear changes in rotation, thereby avoiding affecting the transmission accuracy.

[0096] It should be noted that when two ropes 130 are provided, correspondingly, at least one end of at least one of the two ropes 130 is connected to the driving wheel 110 or the driven wheel 120 by means of an elastic member 140, that is, according to the setting position of the elastic member 140, the connection method of the two ropes 130 and the driving wheel 110 and the driven wheel 120 includes but is not limited to the following situations: (1) one end of one of the two ropes 130 is connected to the driving wheel 110 by means of an elastic member 140; (2) one end of one of the two ropes 130 is connected to the driven wheel 120 by means of an elastic member 140; (3) one of the two ropes 130 130 is connected to the driven wheel 120 by means of an elastic member 140; 0 is connected to the driving wheel 110 by means of an elastic member 140, and one end of the other of the two ropes 130 is connected to the driving wheel 110 by means of an elastic member 140; (4) one end of one of the two ropes 130 is connected to the driven wheel 120 by means of an elastic member 140, and one end of the other of the two ropes 130 is connected to the driven wheel 120 by means of an elastic member 140; (5) one end of one of the two ropes 130 is connected to the driving wheel 110 by means of an elastic member 140, and one end of the other of the two ropes 130 is connected to the driven wheel 120 by means of an elastic member 140. Figure 2 For example, the embodiment of the present invention illustrates a situation where one end of two ropes 130 are connected to the driving wheel 110 by means of an elastic member 140. The configuration can be made according to actual use, and the embodiment of the present application does not impose any specific limitation on this.

[0097] The wheel body refers to the driving wheel 110 or the driven wheel 120 connected to the rope 130 via the elastic member 140. That is, when the rope 130 is connected to the driving wheel 110 via the elastic member 140, the driving wheel 110 is referred to as the wheel body; when the rope 130 is connected to the driven wheel 120 via the elastic member 140, the driven wheel 120 is referred to as the wheel body; when the rope 130 is connected to the driving wheel 110 and the driven wheel 120 respectively via the elastic member 140, both the driving wheel 110 and the driven wheel 120 are referred to as the wheel body.

[0098] The receiving chamber Q is used to accommodate the elastic member 140 and one end of the rope 130. The receiving chamber Q can be opened as follows Figure 2 The end surface of the driving wheel 110 shown in the figure can also be opened inside the driving wheel 110. The receiving cavity Q can be opened as shown in the figure. Figure 2 The rectangular groove on the end surface of the driving wheel 110 is shown. The specific position and structural form of the receiving cavity Q can be set according to actual use requirements, as long as the required accommodation function can be achieved, and the embodiment of the application does not impose specific restrictions on this.

[0099] It is understandable that, since the receiving cavity Q is provided on the wheel body, that is, the elastic member 140 is provided inside the driving wheel 110 or the driven wheel 120. Thus, the internal space of the driving wheel 110 or the driven wheel 120 can be further effectively utilized.

[0100] The location and number of the receiving cavities Q correspond to the elastic members 140, and the location and number of the extension channels P correspond to the location and number of the receiving cavities Q. For example, if two elastic members 140 are provided within the wheel body, whether one or two ropes 130 are provided, both ends of the ropes 130 are elastically connected to the wheel body. That is, when one rope 130 is provided, as in the embodiments illustrated above, both ends of the rope 130 connected to the driving wheel 110 are elastically connected to the driving wheel 110. When two ropes 130 are provided, and one end of each rope 130 is elastically connected to the wheel body, the wheel body is provided with two receiving cavities Q and two extension channels P. Each receiving cavity Q is provided with an elastic member 140, and each receiving cavity Q is connected to an extension channel P. The end of the rope 130 elastically connected to the wheel body extends into the receiving cavity Q through the extension channel P and connects to the corresponding wheel body via the elastic member 140 within the receiving cavity Q. This will not be described in detail later when an example of the elastic member 140 is illustrated.

[0101] The elastic member 140 is used to provide an elastic force acting on the corresponding end of the corresponding rope 130, which can cause the corresponding end of the corresponding rope 130 to have a tendency to move away from the extension channel P. In other words, due to the presence of this elastic force, the rope 130, in a tensioned state, extends from the receiving cavity Q to the extension channel P, and then extends out of the extension channel P. In some embodiments, the elastic member 140 can be configured as a spring.

[0102] It should be noted that the elastic force provided by the elastic member 140 can be a tensile force generated by the elastic member 140, or it can be a compressive force generated by the elastic member 140. For example, when one end of the elastic member 140 is connected to the inner wall of the receiving chamber Q and the other end is connected to the corresponding end of the corresponding rope 130, when the rope 130 is in a tensioned state, the elastic force provided by the elastic member 140 is a tensile force generated by the elastic member 140. Regarding the situation where the elastic force provided by the elastic member 140 is a compressive force generated by the elastic member 140, please refer to the content of some embodiments below and will not be repeated here. Therefore, the structural form of the elastic member 140 and the corresponding end of the corresponding rope 130 can be set according to actual use requirements, and this embodiment of the application does not impose specific limitations on this.

[0103] The elastic member 140 is housed within the receiving chamber Q. That is, the elastic member 140 is confined within the receiving chamber Q and does not extend into the extension channel P. When the rope 130 extends from the receiving chamber Q and passes through the extension channel P, the presence of the extension channel P improves the stress on the elastic member 140 and prevents bending of the elastic member 140, thereby allowing the rope 130 to transmit power while in a tensioned state.

[0104] Therefore, by arranging the elastic member 140 in the corresponding wheel body, as well as the accommodating cavity Q adapted to the elastic member 140 and the extending channel P adapted to the accommodating cavity Q, the elastic member 140 can provide elastic force acting on the rope 130, and can improve the stress condition of the elastic member 140, avoid bending of the elastic member 140, and thus enable the rope 130 to be transmitted in a tensioned state, avoiding the transmission accuracy affected by the wear of the rope 130 and the bending of the elastic member, thereby improving the transmission accuracy.

[0105] In some embodiments, please refer to Figure 2 and Figure 3 The elastic force direction of the elastic member 140 is collinear with the extension direction of the extension channel P. In this way, the problem of the elastic member 140 bending under stress can be further alleviated, thereby improving the transmission accuracy of the rope transmission device 100.

[0106] For more details about some embodiments, please refer to Figure 3The axis of the elastic member 140 is the first axis L1, and the axis of the extension channel P is the second axis L2. The first axis L1 and the second axis L2 are collinear. In other words, the elastic force generated by the elastic member 140 is generated along the axis of the extension channel P. This can effectively reduce the bending of the elastic member 140, thereby further improving the transmission accuracy and reliability.

[0107] In some embodiments, please refer to Figure 2 and Figure 3 The extension channel P includes a straight segment S. The ratio of the length h of the straight segment S to the diameter d of the rope 130 passing through the straight segment S is greater than 1.5. Thus, by configuring the extension channel P with the straight segment S, the direction of the elastic force of the elastic member 140 can be aligned as closely as possible with the direction of extension of the rope 130 within the extension channel P. In other words, the direction of the elastic force of the elastic member 140 can be aligned as closely as possible with the axial direction of the elastic member 140, thereby preventing and improving the problem of bending deformation of the elastic member 140.

[0108] In order to further improve the transmission accuracy, in some embodiments, please continue to refer to Figure 2 and Figure 3 , and combined with reference Figure 1 Two elastic members 140 are provided. Both elastic members 140 can be located in the driving wheel 110 or in the driven wheel 120. Of course, one of the two elastic members 140 can be located in the driving wheel 110, and the other elastic member 140 can be located in the driven wheel 120. The selection and arrangement can be flexibly made according to actual usage, and this embodiment of the application does not impose any specific restrictions on this. Figures 1 to 3 The diagram shows a situation where both elastic members 140 can be disposed in the driving wheel 110 , which can further effectively improve space utilization.

[0109] To further improve the stability during transmission, please continue to refer to Figure 2 , and combined with reference Figure 3 In some embodiments, two elastic members 140 are arranged on either side of a radial reference plane M of the driving wheel 110 , where the radial reference plane M is the central axis L passing through the driving wheel 110 . More specifically, the two elastic members 140 are symmetrically arranged on either side of the radial reference plane M, further improving transmission stability and accuracy through the symmetrical structure. Of course, the two elastic members 140 may also be arranged asymmetrically on either side of the radial reference plane M. This can be selected based on the application and is not specifically limited in this embodiment of the present application.

[0110] In order to further improve the transmission accuracy, in some embodiments, please refer to Figure 4 , and combined with reference Figure 3, the extension directions of the extension channels P corresponding to the two elastic members 140 are set at an angle. Figure 4 As shown, the two extension channels P extend in a first extension direction Y1 and a second extension direction Y2, respectively, and form an angle α between the first extension direction Y1 and the second extension direction Y2. The angle α is an acute angle and can be 20°, 30°, 40°, 50°, 60°, etc., and can be arranged according to actual usage and the space used. This embodiment of the present application does not impose any specific limitations on this.

[0111] For details about some embodiments, please refer to Figure 4 The extension channel P has a first end P1 communicating with the corresponding receiving cavity Q and a second end P2 distal to the corresponding receiving cavity Q. The first ends P1 of the two extension channels P extend at an angle away from each other, while the second ends P2 of the two extension channels P face each other. This allows the portions of the two ropes 130 extending from the driving pulley 110 to be closer together, achieving a greater transmission ratio and further improving transmission accuracy.

[0112] In order to further effectively utilize the space within the driving wheel 110, in some embodiments, please continue to refer to Figure 4 The second ends P2 of the two extension channels P are disposed toward each other and are interconnected. In this way, the portions of the two ropes 130 extending from the driving wheel 110 can be brought closer together, further increasing the transmission ratio.

[0113] In some embodiments, please refer to Figure 4 The two extension channels P define a partition G. The end of the partition G includes a first arc transition section R1. Thus, by providing the first arc transition section R1 on the partition G, the two ropes 130 can be separated, thereby preventing friction between the two ropes 130 during transmission.

[0114] In other embodiments, please refer to Figure 4 A second arc transition section R2 is formed between the second end P2 of the extension channel P and the periphery of the corresponding wheel body. Figure 4 The wheel body shown in the figure is the driving wheel 110 as an example, and the second arc transition section R2 is formed between the second end P2 of the two extension channels P and the periphery of the driving wheel 110. For specific embodiments, please continue to refer to Figures 2 to 4 The two second arc transition sections R2 are symmetrically arranged on both sides of the radial reference plane M. In this way, the wear between the two ropes 130 and the driving wheel 110 can be reduced during the transmission process.

[0115] Furthermore, the surface of the second arc transition section R2 can be processed to obtain a smoother surface, so as to further reduce the friction generated between the rope 130 and the driving wheel 110 during the transmission process to a certain extent.

[0116] In some embodiments, please refer to Figure 3 The rope transmission device 100 further includes a guide member 150 disposed in the receiving chamber Q. The guide member 150 is used to guide the posture of the elastic member 140 along the direction of the elastic force on the elastic member 140. Therefore, by providing the guide member 150, the problem of bending deformation of the elastic member 140 can be further improved.

[0117] Specifically, in some embodiments, the elastic member 140 is sleeved outside the guide member 150, and the guide member 150 is sleeved outside the corresponding end of the corresponding rope 130 extending into the receiving cavity Q, and can restrain the corresponding end of the rope 130 within the receiving cavity Q. In this way, the rope 130 passes through the hole in the middle of the guide member 150 and is fixed, and the guide member 150 can prevent the elastic member 140 from bending vertically or horizontally.

[0118] For further information, please refer to Figures 2 to 4 The receiving cavity Q can be configured as a rectangular groove on the end surface of the driving wheel 110. The width of the rectangular groove can be set to be slightly larger than the width of the elastic member 140, and the direction of extension of the rectangular groove is the same as the direction of extension of the corresponding extension channel P. In this way, by configuring the structure of the receiving cavity Q, the problem of longitudinal or lateral bending of the elastic member 140 can be further improved.

[0119] As an implementation method, please continue to refer to Figures 2 to 4 A first limiting portion 151 can be provided at one end of the guide member 150, and a second limiting portion 131 can be provided at the end of the rope 130 that extends into the receiving cavity Q. The guide member 150 can abut against the elastic member 140 by means of the first limiting portion 151, and the rope 130 can be limited outside the guide member 150 by means of the second limiting portion 131. In other words, the rope 130 passes through the middle of the center hole of the guide member 150 and is limited by the second limiting portion 131, so that the rope 130 cannot completely pass through the center hole of the guide member 150. The guide member 150 passes through the center of the elastic member 140 and is placed together with the rope 130 in the receiving cavity Q of the driving wheel 110. The rope 130 passes through the receiving cavity Q into the extension channel P, then extends from the extension channel P and is wrapped around the circumference of the driving wheel 110. One end of the elastic member 140 close to the extension channel P is limited by the accommodating chamber Q, and the other end generates pressure on the elastic member 140 due to the pre-tightening force when the rope 130 is assembled, causing the elastic member 140 to be compressed, and generating an opposite tension on the rope 130, so that the rope 130 is in a taut state, ensuring the tension of the rope transmission.

[0120] In this way, the rope 130 can be more effectively fixed to prevent it from falling off during transmission. Of course, other structures can also be used to limit one end of the rope 130 to the receiving cavity Q, and the guide member 150 can guide the elastic member 140. This embodiment of the present application does not impose specific limitations on this.

[0121] It is understandable that the length of the guide member 150 is not greater than the length of the elastic member 140 , so that the elastic force generated by the elastic member 140 can be effectively utilized.

[0122] Specifically in other embodiments, when one end of the elastic member 140 is connected to the inner wall of the accommodating cavity Q and the other end is connected to the corresponding end of the corresponding rope 130, the elastic member 140 can also be sleeved on the outside of the guide member 150 or the guide member 150 can be sleeved on the outside of the elastic member 140 to guide the elastic member 140.

[0123] In this way, the guide member 150 can be flexibly set according to the arrangement between the elastic member 140 and the corresponding end of the corresponding rope 130, as well as the usage requirements. As long as the guide member 150 can guide the elastic member 140, the embodiment of the present application does not make any specific restrictions on this.

[0124] Based on the same inventive concept, an embodiment of the present application also provides an ultrasonic probe comprising the rope transmission device 100 described in the above embodiment and an acoustic head. The acoustic head is configured to transmit and receive ultrasonic signals. The acoustic head is connected to a driven pulley 120. The ultrasonic probe also achieves the technical effects achieved by the rope transmission device 100 described above and will not be further described here.

[0125] It is understandable that the ultrasonic probe provided in the embodiment of the present application can be used not only in the cavity, but also in medical scenarios such as the body surface. The selection can be made according to the actual use situation, and the embodiment of the present application does not impose specific restrictions on this.

[0126] The ultrasonic probe provided in the embodiment of the present application is described below by taking an ultrasonic probe used in a cavity as an example with reference to relevant drawings.

[0127] Figure 5 FIG2 shows a schematic structural diagram of an ultrasonic probe 10 in an embodiment of the present application; Figure 6 A schematic diagram of a partial structure of an ultrasonic probe 10 at one viewing angle in one embodiment of the present application is shown; Figure 7 A partial structural schematic diagram of the ultrasonic probe 10 in another viewing angle in an embodiment of the present application is shown; for ease of explanation, only the portion related to the embodiment of the present application is shown.

[0128] It should be noted that, for the ultrasonic probe 10, Figure 6 One perspective is Figure 5Center-left stereoscopic perspective, Figure 7 Another perspective is Figure 5 Center right stereoscopic view. Figure 6 and Figure 7 In the embodiment, part of the structure of the housing 300 is removed.

[0129] In some embodiments, please refer to Figures 5 to 7 The ultrasonic probe 10 includes a housing 300 and a drive device 400. The acoustic head 200 is disposed at one end of the housing 300 in the longitudinal direction (and the first direction F1 shown in the figure). The cable transmission device 100 is disposed within the housing 300. The drive device 400 is disposed within the housing 300 and is connected to the driving pulley 110. The driven pulley 120 is connected to the acoustic head 200.

[0130] The shell 300 is a component for accommodating the rope transmission device 100, the driving device 400 and the cable connecting the sound head 200 in the ultrasonic probe 10. As a whole, the shell 300 extends longitudinally along the first direction F1 and is roughly a longitudinal member. Along the first direction F1, the shell 300 has a gripping section 301 and an insertion section 302 connected in sequence. The gripping section 301 is for the operator to hold, and the insertion section 302 is used to insert into the part to be tested in the human body. The gripping section 301 and the insertion section 302 can be an integrated structure or a split structure. When the gripping section 301 and the insertion section 302 are a split structure, the gripping section 301 and the insertion section 302 can be connected and fixed by bonding, which is more convenient for manufacturing and installation.

[0131] The acoustic head 200 is located at the end of the insertion section 302 away from the grip section 301. One end of the connecting cable 500 extends from the end of the grip section 301 away from the insertion section 302 into the housing 300 and connects to the acoustic head 200. The other end of the connecting cable 500 is electrically connected to the main body of the ultrasonic device. Ultrasonic signals transmitted and received by the acoustic head 200 are transmitted to the main body of the ultrasonic device via the connecting cable 500 to obtain a three-dimensional or four-dimensional image of human tissue. The acoustic head 200 can also be attached to the end of the insertion section 302 away from the grip section 301 by bonding.

[0132] The rope transmission device 100 is used to transmit the driving force from the drive device 400 to the acoustic head 200, thereby rotating the transducer 230 within the acoustic head 200. The drive device 400 provides the driving force that drives the rope transmission device 100. The driving force is transmitted to the driven pulley 120 via the driving pulley 110 and the rope 130. The rope 130 offers excellent flexibility, ensuring a smooth transmission process and preventing noise, vibration, and shock. The acoustic head 200 is also flexible, preventing damage during use.

[0133] Since the driven wheel 120 and the acoustic head 200 are located on the same side, that is, near the end of the insertion section 302 away from the gripping section 301, and the insertion section 302 needs to be inserted into the cavity, the size of the insertion section 302 is bound to be limited due to space constraints. Therefore, in order to further utilize the space, the elastic member 140 can be set inside the driving wheel 110 as in some of the aforementioned embodiments. Since the driving wheel 110 is located in the gripping section 301, and the gripping section 301 is located outside the cavity, there is more usable space, which is conducive to improving the transmission ratio of the rope transmission device 100. Accordingly, as shown later Figure 8 and Figure 9 As shown, the other ends of the two ropes 130 can be fixed on opposite sides of the driven wheel 120 by means of connecting members such as screws to achieve connection and fixation.

[0134] In some embodiments, please refer to Figure 6 and Figure 7 The housing 300 is provided with a limiting structure 310. The limiting structure 310 is used to collect the rope 130 between the driving wheel 110 and the driven wheel 120. Figure 10 and Figure 11 , the two ropes 130 located between the driving wheel 110 and the driven wheel 120 can be gathered together, reducing the space occupied by the rope transmission device 100 in the housing 300.

[0135] by Figure 6 and Figure 7 For example, a limiting structure 310 is provided within the housing 300 near both the driving pulley 110 and the driven pulley 120. A limiting channel is formed within the limiting structure 310, and the two ropes 130 are brought closer to each other and restrained within the limiting channel. The limiting structure 310 can be integral with the housing 300 or separate from the housing 300, as long as the retraction effect can be achieved. This embodiment of the present application does not impose any specific limitations on this. Of course, the limiting structure 310 can also be provided within the housing 300 near the driven pulley 120.

[0136] It should be noted that Figure 6 and Figure 7 The limiting structure 310 shown in the figure can be formed on the corresponding bases in the housing 300 for mounting the acoustic head 200 and the driving device 400. Of course, the limiting structure 310 can also be set at other positions in the housing 300 as long as the retraction effect can be achieved. This embodiment of the application does not impose specific limitations on this.

[0137] Figure 8 A schematic diagram of the structure of the transducer 230 and the driven wheel 120 in cooperation with each other at one viewing angle in one embodiment of the present application is shown; Figure 9A schematic structural diagram of the transducer 230 and the driven wheel 120 in cooperation with each other from another perspective in an embodiment of the present application is shown; for ease of explanation, only the content related to the embodiment of the present application is shown.

[0138] It should be noted that Figure 8 and Figure 9 The housing 210 of the acoustic head 200 is omitted. Figure 8 One perspective is Figure 5 Center-right stereoscopic perspective, Figure 9 Another perspective is Figure 5 Center-left stereoscopic perspective.

[0139] Take the limiting structure 310 near the driven wheel 120 as an example. Figures 6 to 9 As shown, the acoustic head 200 includes a shell 210, a first base 220 provided in the shell 210, and a transducer 230 provided on the first base 220. The first base 220 is fixedly connected to one end of the extension section 302 of the shell 300, and can also be an integrated structure. The transducer 230 is fixed on the first base 220, and then the whole is fixed on the limiting structure 310 through a rotating shaft, and can swing relative to the limiting structure 310. The acoustic head 200 is fixedly connected to the shell 100 with the shape of the limiting structure 310, and the shell 210 is connected to the limiting structure 310, and is sealed by means of a sealing structure. The first base 220 and the driven wheel 120 can be as follows Figure 8 and Figure 9 The one-piece structure shown in the figure can also be a split structure. Figure 1 , the first base 220 and the driven wheel 120 are also shown as an integrated structure. In this embodiment, the limiting structure 310 is similar to the seat body provided on the housing 300 for mounting the acoustic head 200.

[0140] Optionally, a rolling bearing may be provided in the limiting structure 310 to convert the sliding friction between the rope 130 and the limiting structure 310 into rolling friction, thereby reducing friction and preventing wear of the rope 130 .

[0141] Therefore, according to the situations illustrated in some of the above embodiments, the limiting structure 310, the sound head 200 and the related structures in the shell 300 for installing various components can be set more flexibly, as long as the space usage requirements can be met. The embodiments of the present application do not impose specific restrictions on this.

[0142] Figure 10 A schematic structural diagram of the cooperation between the rope transmission device 100 and the driving device 400 in one embodiment of the present application is shown from one viewing angle; Figure 11A schematic structural diagram of the cooperation between the rope transmission device 100 and the driving device 400 from another perspective in an embodiment of the present application is shown; for ease of explanation, only the content related to the embodiment of the present application is shown.

[0143] It should be noted that, for the ultrasonic probe 10, Figure 10 One perspective is Figure 5 Center-left stereoscopic perspective, Figure 11 Another perspective is Figure 5 Center-right stereoscopic perspective.

[0144] In some embodiments, please refer to Figure 10 and Figure 11 , and combined with reference Figure 6 and Figure 7 The drive device 400 includes a drive member 410 fixed in the housing 300, and a gear set 420 drivingly connected to the drive member 410. The output end of the gear set 420 is drivingly connected to the driving wheel 110. In this way, by setting the drive member 410 and the gear set 420, the rope transmission device 100 can be driven.

[0145] For more details about some embodiments, please refer to Figure 10 and Figure 11 Gear set 420 includes a first bevel gear 421 in transmission connection with driver 410, and a second bevel gear 422 meshing with first bevel gear 421. Second bevel gear 422 is connected to driving pulley 110 via a transmission shaft, driving driving pulley 110 to rotate about the axis of the transmission shaft. A coupling 430 is provided for transmission connection between driver 410 and first bevel gear 421. As driver 410 rotates, driving first bevel gear 421, coupling 430 corrects eccentricity between the output shaft of driver 410 and the gear shaft of first bevel gear 421.

[0146] By providing the first bevel gear 421 and the second bevel gear 422 , not occupying too much volume, the structure can be made more compact and power transmission can be achieved more smoothly.

[0147] In some embodiments, the connecting ends of the rotating shaft of the second bevel gear 422 and the rotating shaft of the driving wheel 110 can be respectively configured as a square shaft and a square hole, and locked by screws. When the second bevel gear 422 rotates, it drives the driving wheel 110 to rotate synchronously.

[0148] The matching of the square shaft and the square hole makes the transmission process between the second bevel gear 422 and the driving wheel 110 more stable.

[0149] In some embodiments, the drive member 410 is a drive motor. Thus, by rotating the drive motor forward and reverse, the acoustic head 200 can be swung. Of course, the drive member 410 can also be another device capable of generating a driving force, such as a rotary cylinder. This can be configured based on the actual space available and is not specifically limited in this embodiment of the present application.

[0150] The inventors of this application have further discovered that if the output shaft of the driver 410 is too long, it can easily deform. When the transducer 230 in the acoustic head 200 reaches its maximum rotational position, the gear assembly 420 lacks overload protection. If the driver 410 does not stop, this can cause deformation and damage to weak parts of the transmission structure. If the driver 410 uses a drive motor, starting, stopping, or reversing the drive can also easily cause structural impact and noise.

[0151] In some embodiments, please refer to Figure 6 and Figure 7 , the driving device 400 is arranged at the junction of the gripping section 301 and the insertion section 302. That is, it is possible to avoid using an overly long output shaft in the driving device 400. Optionally, a second base 320 can be provided in the gripping section 301 and the insertion section 302, and the second base 320 is connected to the inner wall of the shell 300. The driving device 400 can be mounted on the second base 320. Specifically in some embodiments, the second bevel gear 422 and the driving wheel 110 can be fixed in the second base 320 by means of rolling bearings. In this way, it is possible to avoid affecting the arrangement of the driving device 400 due to the limited space of the insertion section 302, and it is also possible to make full use of the space of the gripping section 301.

[0152] Optionally, in combination with the situations illustrated in some of the aforementioned embodiments, a limiting structure 110 may be provided on the second base 320 to retract the rope 130 near the driving wheel 110 .

[0153] For ease of use, in some embodiments, please continue to refer to Figures 5 to 7 Along the longitudinal direction, the cross-sectional area of ​​the insertion section 302 is smaller than the cross-sectional area of ​​the grip section 301. Thus, the grip section 301 is larger, making it easier for the operator to hold, while the insertion section 302 is smaller, making it easier to insert into the cavity to achieve scanning imaging of the acoustic head 200.

[0154] In some embodiments, the switch button of the drive device 400 can be located on the grip section 301 for ease of use. For example, the switch button can be configured to enable both forward and reverse rotation of the drive motor. The switch button can be configured based on actual usage requirements and is not specifically limited in this embodiment of the present application.

[0155] During use, the doctor grasps the grip section 301 of the housing 300, extends the insertion section 302 into the desired testing area, and controls the movement of the transducer 230 inside the acoustic head 200 through the button on the grip section 301, thereby achieving scanning and imaging of the probe. Specifically, the transmission process is as follows: when the driving member 410 rotates, it drives the first bevel gear 421 to rotate, which in turn drives the second bevel gear 422 meshing with the first bevel gear 421. When the second bevel gear 422 rotates, it drives the driving wheel 110 to rotate synchronously. The driving wheel 110 drives the driven wheel 120 to rotate via the rope 130, which in turn drives the transducer 230 to rotate.

[0156] Based on the same inventive concept, an embodiment of the present application provides an ultrasonic device, comprising the ultrasonic probe 10 of the above embodiment and an ultrasonic device body electrically connected to the ultrasonic probe 10. The technical effects achieved by the above ultrasonic probe 10 can also be achieved by the ultrasonic device, and will not be described in detail here.

[0157] In summary, in the embodiment of the present application, by placing the drive device 400 at the junction between the insertion section 302 and the handheld section and incorporating the rope transmission device 100 to drive the acoustic head 200, not only does this ensure smoother and more reliable transmission, but the flexible bending of the acoustic head 200 also prevents damage to the acoustic head 200. Furthermore, the use of a gear transmission within the drive device 400 in the primary transmission ensures smooth and accurate transmission, a compact structure, and minimal space consumption. The rope transmission device 100, which is used in the secondary transmission, offers excellent flexibility and smooth transmission, preventing noise, vibration, and shock. Furthermore, the provision of the elastic member 140 ensures the tension of the rope 130 while reducing shock during starting and stopping, ensuring a smoother transmission process. By placing the elastic member 140 within the wheel body, it eliminates the need for additional internal space, further enhancing the compactness and reliability of the structure. The use of the guide member 150 in conjunction with the elastic member 140 prevents bending of the elastic member 140, improving transmission accuracy and reliability. Therefore, overall, the ultrasonic probe 10 provided in the embodiment of the present application makes the structure of the entire device compact and can improve transmission accuracy and reliability through the arrangement of various components and the improvement of the rope transmission device 100.

[0158] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0159] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art could make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A rope transmission device (100) for an ultrasonic probe (10), characterized in that: The rope transmission device (100) comprises: A driving wheel (110), a driven wheel (120) and a rope (130), wherein the driving wheel (110) is connected to the driven wheel (120) by means of the rope (130); and at least one elastic member (140), wherein at least one end of the rope (130) is elastically connected to corresponding wheel bodies of the driving wheel (110) and the driven wheel (120) by means of the elastic member (140); The wheel body elastically connected to the rope (130) is provided with a receiving cavity (Q) corresponding one-to-one to the elastic member (140), and an extension channel (P) corresponding one-to-one to the receiving cavity (Q); The elastic member (140) is accommodated in the accommodation cavity (Q); one end of the rope (130) elastically connected to the wheel body extends into the accommodation cavity (Q) through the extension channel (P) and connects with the corresponding elastic member (140); There are two elastic members (140), and both of the elastic members (140) are arranged inside the driving wheel (110); The extension directions of the extension channels (P) corresponding to the two elastic members (140) are arranged at an angle; The extension channel (P) has a first end (P1) connected to the corresponding receiving cavity (Q) and a second end (P2) away from the corresponding receiving cavity (Q); The first ends (P1) of the two extension channels (P) extend obliquely away from each other, and the second ends (P2) of the two extension channels (P) are arranged to face each other.

2. The rope transmission device (100) according to claim 1, characterized in that The elastic force direction of the elastic member (140) and the extension direction of the extension channel (P) are collinear with each other.

3. The rope transmission device (100) according to claim 2, characterized in that The axis of the elastic member (140) and the axis of the extension channel (P) are collinear with each other.

4. The rope transmission device (100) according to claim 1, characterized in that The extension channel (P) includes a straight segment (S); The ratio of the length (h) of the straight section (S) to the diameter (d) of the rope (130) passing through the straight section (S) is greater than 1.

5.

5. The rope transmission device (100) according to claim 1, characterized in that The two elastic members (140) are arranged on both sides of the radial reference surface (M) of the driving wheel (110); The radial reference plane (M) is a plane passing through the central axis (L) of the driving wheel (110).

6. The rope transmission device (100) according to claim 5, characterized in that The two elastic members (140) are symmetrically arranged on both sides of the radial reference plane (M).

7. The rope transmission device (100) according to claim 1, characterized in that The second ends (P2) of the two extension channels (P) are arranged facing each other and communicated with each other.

8. The rope transmission device (100) according to claim 7, characterized in that A partition (G) is defined between the two extension channels (P); The end of the partition (G) includes a first arc transition section (R1).

9. The rope transmission device (100) according to claim 1, characterized in that A second arc transition section (R2) is formed between the second end (P2) of the extension channel (P) and the corresponding periphery of the wheel body.

10. The rope transmission device (100) according to claim 9, characterized in that The two second arc transition sections (R2) are symmetrically arranged on both sides of the radial reference plane (M).

11. The rope transmission device (100) according to any one of claims 1 to 4, characterized in that: The rope transmission device (100) further includes a guide member (150) disposed in the receiving cavity (Q); The guide member (150) is used to guide the posture of the elastic member (140) along the direction of the elastic force on the elastic member (140).

12. The rope transmission device (100) according to claim 11, characterized in that The elastic member (140) is sleeved outside the guide member (150); The guide member (150) is sleeved outside the corresponding end of the rope (130) extending into the receiving cavity (Q), and can limit the corresponding end of the rope (130) to be located within the receiving cavity (Q).

13. The rope transmission device (100) according to any one of claims 1 to 4, characterized in that: The ropes (130) are provided with two; Each of the ropes (130) is connected between the driving wheel (110) and the driven wheel (120).

14. An ultrasonic probe (10), characterized in that include: A rope transmission device (100) according to any one of claims 1 to 13; and The acoustic head (200) is used for transmitting and receiving ultrasonic signals; the acoustic head (200) is connected to the driven wheel (120).

15. The ultrasonic probe (10) according to claim 14, characterized in that The ultrasonic probe (10) further comprises: A housing (300), wherein the acoustic head (200) is provided at one end of the housing (300), and the rope transmission device (100) is provided inside the housing (300); and A driving device (400) is disposed in the housing (300); the driving device (400) is transmission-connected to the driving wheel (110).

16. The ultrasonic probe (10) according to claim 15, characterized in that The driving device (400) includes a driving member (410) fixed in the housing (300), and a gear set (420) transmission-connected to the driving member (410); The output end of the gear set (420) is drivingly connected to the driving wheel (110).

17. The ultrasonic probe (10) according to claim 16, characterized in that The gear set (420) includes a first bevel gear (421) transmission-connected to the driving member (410), and a second bevel gear (422) meshing with the first bevel gear (421); The second bevel gear (422) is connected to the driving wheel (110) via a transmission shaft to drive the driving wheel (110) to rotate around the axis of the transmission shaft.

18. The ultrasonic probe (10) according to any one of claims 15 to 17, characterized in that: The housing (300) comprises a gripping section (301) and an extending section (302) connected in sequence along the longitudinal direction of the housing (300); The driving device (400) is arranged at the junction of the holding section (301) and the insertion section (302), the acoustic head (200) is arranged at one end of the insertion section (302) away from the holding section (301), and the rope transmission device (100) is arranged in the insertion section (302).

19. The ultrasonic probe (10) according to claim 18, characterized in that Along the longitudinal direction, the cross-sectional area of ​​the extending section (302) is smaller than the cross-sectional area of ​​the gripping section (301).

20. The ultrasonic probe (10) according to any one of claims 15 to 17, characterized in that: A limiting structure (310) is provided in the housing (300); The limiting structure (310) is used to gather the rope (130) between the driving wheel (110) and the driven wheel (120).

21. An ultrasonic device, characterized in that include: The ultrasonic probe (10) according to any one of claims 14 to 20; and An ultrasonic device body electrically connected to the ultrasonic probe (10).

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