Ultrasound probe

Abstract

An ultrasonic probe has a separately arranged reset device, which includes a reset member and a reset power input member, which is in transmission connection with the reset member to drive the reset member to move. The reset member is arranged corresponding to the follower of the transmission mechanism to drive the follower to move to the side where the traction line is located, so that the traction line is reset. After the traction line is reset, the inclination section is also reset, and the sound head assembly of the ultrasonic probe returns to a normal position. In addition, the reset device also includes a stroke control assembly, which prompts and / or controls the reset member to stop moving or retract when the reset member moves to the reset position. When the user operates the reset device, there is no need to pay attention to the reset state at all times. When the reset member moves to the reset position, it can automatically stop or retract, or prompt the user to stop the reset operation.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to the structure of an ultrasound probe. Background Art

[0002] The ultrasonic probe is an important component of ultrasonic equipment (such as ultrasonic diagnostic imaging equipment). Its working principle is to use the piezoelectric effect to convert the excitation electrical pulse signal of the ultrasonic machine into an ultrasonic signal that enters the patient's body, and then converts the ultrasonic echo signal reflected by the tissue into an electrical signal, thereby realizing the detection of the tissue.

[0003] Among them, the transesophageal ultrasound probe (TEE) is a device that can be inserted into the human body cavity for ultrasonic detection, which can increase the heart scanning area. The acoustic head assembly of the probe is usually installed on an insertion tube assembly, and the insertion tube assembly has an inclination segment, which is bent in 2 or 4 directions to adjust the acoustic head detection area. Among them, a bending angle control part is provided at the handle end of the transesophageal ultrasound probe, and the user controls the bending angle and direction of the inclination segment through the control part. For example, in a transesophageal ultrasound probe with manually controlled bending angle, the control part is a manually rotatable knob to control the bending of the inclination segment.

[0004] In clinical applications, doctors need to reset the inclination section after using the transesophageal ultrasound probe. For example, in the above-mentioned transesophageal ultrasound probe with manually controlled bending angle, the way to reset the inclination is that the user manually rotates the knob in the opposite direction to align it with the position mark on the handle to achieve reset. Users (such as doctors) will stare at the host interface most of the time during the diagnosis stage. After the diagnosis is completed, the user will shift their attention to the handle end and operate the control knob to reset it, thereby resetting the inclination of the working end. This method has cumbersome operating steps and is easy to distract the user's attention. Especially in dim conditions, it is more difficult to judge whether it is reset. Pulling out the insertion tube without resetting may cause discomfort or minimally invasive to the patient. Summary of the invention

[0005] The present application provides an ultrasonic probe, which is used to provide a new structure capable of resetting the ultrasonic probe.

[0006] According to one aspect of the present application, an ultrasonic probe is provided in one embodiment, comprising:

[0007] An acoustic head assembly, the acoustic head assembly is used to generate and receive ultrasonic signals;

[0008] At least two pulling wires connected to the acoustic head assembly, the pulling wires are used to drive the acoustic head assembly to move in a specified direction;

[0009] A transmission mechanism, comprising an active member capable of forward and reverse rotational motion and a driven member capable of outputting reciprocating linear motion, wherein the active member and the driven member are in transmission connection, converting the rotational motion of the active member into the reciprocating linear motion of the driven member, and the driven member is connected to a traction line to drive the traction line to move;

[0010] A rotary power input member connected to the active member, for transmitting the rotary motion to the active member;

[0011] And a reset device, the reset device includes a reset member, a reset power input member and a stroke control component, the reset member and the follower are correspondingly arranged to drive the follower to move to the side where the traction line is located to reset the traction line, the reset power input member is transmission-connected with the reset member to drive the reset member to move; the stroke control component prompts and / or controls the reset member to stop moving or retreat when the reset member moves to the reset position.

[0012] In one embodiment, the travel control assembly includes a control unit, the reset power input member includes a motor, the motor drives the reset member to move toward or away from the driven member, and the control unit controls the start and stop of the motor.

[0013] In one embodiment, the reset device includes a screw-nut mechanism, the motor drives the nut in the screw-nut mechanism to rotate, and the reset member is installed on the screw in the screw-nut mechanism and reciprocates with the screw.

[0014] In one embodiment, a driving wheel is installed at the output end of the motor, and the driving wheel is connected to the nut through a synchronous belt to transmit the rotational motion output by the motor to the nut.

[0015] In one embodiment, the resetting device includes a bracket, the motor is fixedly mounted on the bracket, and the resetting member is movably mounted on the bracket.

[0016] In one embodiment, the reset power input member includes a manual input member for a user to manually input a reset motion, and the manual input member is connected to the reset member to drive the reset member to move in a direction approaching and away from the driven member.

[0017] In one embodiment, the manual input member includes a reset knob, and the reset knob is connected to the reset member through a reset transmission mechanism, and the reset transmission mechanism can convert rotational motion into reciprocating linear motion.

[0018] In one embodiment, the stroke control assembly includes a reset limiter, which is disposed on a moving track of the reset member to prevent the reset member from continuing to move when the reset member moves to a reset position.

[0019] In one embodiment, the travel control component includes a control unit and a reset detection unit. When the reset detection unit detects that the reset member moves to the reset position, the control unit sends a first prompt signal and / or controls the reset member to stop moving or retract.

[0020] In one embodiment, the reset detection unit includes a reset detection end, the reset member is provided with a reset sensing member, the reset sensing member moves together with the reset member, and the reset detection end is arranged on the movement trajectory of the reset sensing member. When the reset sensing member moves to the inspection area of ​​the reset detection end, the reset detection end sends a signal to the control unit indicating that the reset member has reached the reset position.

[0021] In one embodiment, the stroke control assembly further includes a zero position detection unit. When the zero position detection unit detects that the reset member has retreated to the starting position, the control unit sends a second prompt signal and / or controls the reset member to stop moving.

[0022] In one embodiment, the zero position detection unit includes a zero position detection end, the reset member is provided with a zero position sensing member, the zero position sensing member moves together with the reset member, and the zero position detection end is arranged on the movement trajectory of the zero position sensing member. When the zero position sensing member retreats to the inspection area of ​​the zero position detection end, the zero position detection end sends a signal to the control unit indicating that the reset member has reached the zero position.

[0023] In one embodiment, at least one of the reset detection unit and the zero position detection unit uses a photoelectric detection sensor.

[0024] In one embodiment, the reset member has an abutment portion capable of abutting against all the follower members so as to push the follower members to move.

[0025] In one embodiment, the rotational power input member is a manual knob, and the manual knob is connected to the active member so that a user can manually drive the active member to rotate.

[0026] In one embodiment, there are four traction lines, the manual knob includes a left and right bending knob and an up and down bending knob, and the transmission mechanism is divided into a left and right bending transmission mechanism and an up and down bending transmission mechanism; the left and right bending knobs are transmission-connected with the active parts of the left and right bending transmission mechanism, and there are two driven parts of the left and right bending transmission mechanism, which are respectively arranged on both sides of the corresponding active parts, and each driven part is respectively connected to a traction line to drive the sound head assembly to bend in the left and right directions; the up and down bending knobs are transmission-connected with the active parts of the up and down bending transmission mechanism, and there are two driven parts of the up and down bending transmission mechanism, which are respectively arranged on both sides of the corresponding active parts, and each driven part is respectively connected to a traction line to drive the sound head assembly to bend in the up and down directions.

[0027] In one embodiment, the rotational power input member includes a second motor, and the second motor drives the active member to rotate.

[0028] According to the ultrasonic probe of the above embodiment, it has a separately arranged reset device, which includes a reset member and a reset power input member, and the reset power input member is connected to the reset member in a transmission manner to drive the reset member to move. The reset member is arranged corresponding to the driven member of the transmission mechanism to drive the driven member to move to the side where the traction line is located, so that the traction line is reset. After the traction line is reset, the inclination section is also reset, and the sound head assembly of the ultrasonic probe is restored to a normal position. Moreover, the reset device also includes a stroke control component, which prompts and / or controls the reset member to stop moving or retract when the reset member moves to the reset position. When the user operates the reset device, there is no need to pay attention to the reset state at all times. When the reset member moves to the reset position, it can automatically stop or retract, or prompt the user to stop the reset operation. This simplifies the operation of the user (such as a doctor), and at the same time relies on the stroke control component to replace the doctor's visual judgment to achieve reset, reducing the doctor's misjudgment, thereby reducing the clinical patient's discomfort and the probability of minimally invasive. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of an ultrasound probe in an embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of an embodiment of the present application in which the inclined angle section bends in the upward and downward directions;

[0031] Figure 3 This is a schematic diagram of an embodiment of the present application in which the inclination section is bent in the left and right directions;

[0032] Figure 4 This is a schematic diagram of the coordination structure between the transmission mechanism and the traction line in one embodiment of the present application;

[0033] Figure 5 This is a schematic diagram of the matching structure of the reset device and the driven member in one embodiment of the present application;

[0034] Figure 6 This is a schematic diagram of the structure of a reset device in an embodiment of the present application;

[0035] Figure 7 This is a schematic diagram of a reset detection unit and a zero position detection unit in a reset device in an embodiment of the present application;

[0036] Figure 8 This is a schematic diagram of a reset button in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0039] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0040] This embodiment provides an ultrasound probe, which can be applied to various ultrasound devices (such as ultrasound diagnostic imaging devices), especially a transesophageal ultrasound probe (TEE).

[0041] Please refer to Figures 1 to 5 In one embodiment, the ultrasonic probe generally includes a handle assembly 100, an insertion tube assembly 200, and a sound head assembly 300. The insertion tube assembly 200 may include a main tube section 210, an angle section 220, and a traction line 230 disposed in the main tube section 210 and the angle section 220. There are at least two traction lines 230. The handle assembly 100 may have a rotational power input member 110 and a transmission mechanism 120. At the same time, it also includes a reset device 130, which may be installed in the handle assembly 100 or at other locations.

[0042] The acoustic head assembly 300 is used to generate and receive ultrasonic signals. The acoustic head assembly 300 has an acoustic head, and may also have, but is not limited to, components such as a backing, a matching layer, and a housing. The acoustic head assembly 300 can use the piezoelectric effect to convert the excitation electrical pulse signal of the ultrasonic machine into an ultrasonic signal that enters the patient's body, and then convert the ultrasonic echo signal reflected by the tissue into an electrical signal, thereby realizing the detection of the tissue.

[0043] The traction line 230 is used to drive the sound head assembly 300 to move in a specified direction. For example, it can be achieved by using a linear body with a certain strength such as a wire rope. Usually, the inclination section 220 can have a serpentine tube, a hose or a similar structure that can be bent in a certain direction. The traction line 230 is set on the serpentine tube, the hose or the similar structure (for example, welded to the tube wall) to control the bending state of the serpentine tube or the similar structure. The inclination section 220 is connected to the sound head assembly 300, so the bending of the inclination section 220 can drive the sound head assembly 300 to move in a specified direction, thereby achieving the desired movement effect. Please refer to Figure 2 and 3 The bending of the angled section 220 can be divided into bending in the up-down direction and bending in the left-right direction. In some embodiments, the bending in the up-down direction and the bending in the left-right direction can be selected, that is, only the bending function in the up-down direction or the left-right direction may be required. Of course, it is better to have the bending function in the four directions at the same time.

[0044] Please refer to Figure 4 , the bending in the four directions can be achieved by pulling the traction line 230. As shown in the figure, the first traction line 231 and the second traction line 232 are a group. For example, if the first traction line 231 is pulled in the direction of arrow A, and the second traction line 232 is moved in the direction of arrow B, or vice versa, the angled section 220 is bent in the left and right direction (or the up and down direction through the layout design of the traction line 230). Similarly, the third traction line 233 and the fourth traction line 234 are a group. For example, if the third traction line 233 is pulled in the direction of arrow A, and the fourth traction line 234 is moved in the direction of arrow B, or vice versa, the angled section 220 is bent in the up and down direction (or the left and right direction through the layout design of the traction line 230). As for how the traction line 230 is connected to the snake tube of the angled section 220 and the specific bending principle, you can refer to the above description for understanding, and will not repeat it here.

[0045] In the present embodiment, the transmission mechanism 120 includes an active member 121 capable of performing forward and reverse rotational motion and a driven member 122 capable of outputting reciprocating linear motion. The active member 121 and the driven member 122 are in transmission connection, and the rotational motion of the active member 121 is converted into the reciprocating linear motion of the driven member 122. The driven member 122 is connected to the traction line 230 to drive the traction line 230 to move. The rotational power input member 110 is used to transmit the rotational motion to the active member 121, and drive the active member 121 to rotate. The rotational motion can be manually input by the user to the rotational power input member 110. For example, the rotational power input member 110 is a knob or other manual member. At the same time, the rotational motion can also be input by a driving member such as a motor.

[0046] Please refer to Figure 4 and 5 In one embodiment, the transmission mechanism 120 may adopt a gear rack structure, wherein the gear is the active member 121 and the rack is the driven member 122. The traction line 230 is mounted on the rack. The gear receives the rotational motion input by the rotational power input member 110, and drives the rack to reciprocate linear motion through the meshing relationship with the rack, thereby driving the traction line 230 to move in the directions indicated by arrows A and B.

[0047] Please continue to refer to Figure 4 and 5 In one embodiment, the rotational power input member 110 is a manual knob, and the manual knob is connected to the active member 121 so that the user can manually drive the active member 121 to rotate. Take the example that the inclination section 220 can be bent in four directions, up, down, left and right, wherein there are four traction lines 230, and the manual knob includes a left and right bending knob 111 and an up and down bending knob 112. The transmission mechanism 120 is divided into a left and right bending transmission mechanism and an up and down bending transmission mechanism. The left and right bending knobs 111 are transmission-connected to the active member 1211 of the left and right bending transmission mechanism, and there are two driven members 1221 of the left and right bending transmission mechanism, which are respectively arranged on both sides of the corresponding active member 1211, and each driven member 1221 is respectively connected to a traction line 231, 232 to drive the sound head assembly 300 to bend in the left and right directions. The up and down bending knob 112 is connected to the active member 1212 of the up and down bending transmission mechanism. There are two driven members 1222 of the up and down bending transmission mechanism, which are respectively arranged on both sides of the corresponding active member 1212. Each driven member 1222 is connected to a traction line 233, 234 to drive the sound head assembly 300 to bend in the up and down directions.

[0048] Please refer to Figure 5 and 6The reset device 130 includes a reset member 131, a reset power input member (a motor 132 is shown in the figure) and a stroke control assembly. The reset member 131 is arranged corresponding to the follower 122 to drive the follower 122 to move to the side where the traction line 230 is located, so that the traction line 230 is reset. The reset power input member is transmission-connected to the reset member 131 to drive the reset member 131 to move. When the reset member 131 moves to the reset position, the stroke control assembly prompts and / or controls the reset member 131 to stop moving or retreat. The prompt can be embodied in the form of sound, light, etc. For example, a prompt can be given by a prompt light, a display screen and / or a speaker arranged on the handle assembly 100.

[0049] The reset in this embodiment refers to restoring the snake tube to a normal state (not bent). At this time, all the followers 122 are in the same position and in a reset state, and all the traction lines 230 are also reset to the same position (such as Figure 4 and 5 The tilt section 220 does not bend upward, downward, leftward, or rightward, and the ultrasonic probe head assembly 300 returns to a normal position. The reset position of the reset member 131 refers to the position of the reset member 131 when the follower 122 and the traction line 230 are in the reset state.

[0050] exist Figure 5 In the structure shown, the reset member 131 performs reciprocating linear motion, so it can push the follower 122 from one side to move all the follower 122 to the reset position. Of course, the reset member 131 may also adopt other motion trajectories, such as moving along an arc trajectory, as long as it can drive the follower 122 to the reset position. The reset power input member can manually input the reset motion through the user, or input the corresponding reset motion through a driving member such as a motor or a cylinder. Among them, the reset motion may be a rotational motion, or it may be a linear motion or other types of motion.

[0051] The stroke control component can detect or control the stroke of the reset member 131, so that when the reset member 131 moves to the reset position, it can promptly remind the user to stop the reset operation or directly control the reset member 131 to stop moving or retract. When the user operates the reset device 130, there is no need to pay attention to the reset state at all times. When the reset member 131 moves to the reset position, it can automatically stop or retract, or prompt the user to stop the reset operation. This simplifies the operation of the user (such as a doctor), and at the same time relies on the stroke control component to replace the doctor's visual judgment to achieve reset, reducing the doctor's misjudgment, thereby reducing clinical patient discomfort and the probability of minimally invasive surgery.

[0052] Please refer to Figure 5 and 6In one embodiment, the reset power input member includes a motor 132, and the motor 132 drives the reset member 131 to move in a direction close to or away from the driven member 122. The motor 132 can be connected to the reset member 131 through various transmission mechanisms, thereby driving the reset member 131 to move. The motor 132 can adopt a forward and reverse motor, which can drive the reset member 131 forward and backward. The stroke control component may include a control unit (not shown in the figure), which is connected to the motor 132 to control the start and stop of the motor 132. For example, when it is detected that the reset member 131 moves to the reset position, the control unit controls the motor 132 to stop working, stop the movement of the reset member 131, or control the motor 132 to reverse, so as to drive the reset member 131 to retreat.

[0053] Of course, in some embodiments, the reset member 131 may be directly driven forward or backward by means of a cylinder, an electromagnet, or the like.

[0054] Please refer to Figure 7 In one embodiment, the reset device 130 includes a screw nut mechanism, a motor 132 drives a nut 133 in the screw nut mechanism to rotate, and a reset member 131 is installed on a screw 134 in the screw nut mechanism and reciprocates with the screw 134. The rotation of the nut 133 drives the screw 134 to reciprocate. The reciprocating motion of the reset member can also be achieved by other structural methods, such as a gear-linked motion method, or a turbine-linked motion method, etc., which are not listed here. It can be driven by a motor, a cylinder, an electromagnet, or it can be driven manually, which is not limited here.

[0055] Please refer to Figure 6 In one embodiment, the resetting device 130 further includes a bracket 135, which can be fixedly mounted on other components of the ultrasound probe, such as in the handle assembly 100. The motor 132 is fixedly mounted on the bracket 135, and the lead screw 134 is movably disposed on the bracket 135.

[0056] Please refer to Figure 7 In one embodiment, the output end of the motor 132 is provided with a driving wheel 1310, and the driving wheel 1310 is connected to the nut 133 through a synchronous belt, so as to transmit the rotational motion output by the motor 132 to the nut 133. The driving wheel 1310, the nut 133 and the synchronous belt constitute a synchronous belt transmission mechanism.

[0057] In other embodiments, the output end of the motor 132 can also drive the nut 133 through a gear transmission, a synchronous chain transmission mechanism, etc.

[0058] When the motor 132 is used as the power supply device for the reset power input member, a switch for starting the reset operation may be provided, such as a key switch or a touch switch. Figure 8In one embodiment, the switch 140 is disposed on the handle assembly 100, such as a side portion of the handle housing, for user operation.

[0059] In conjunction with the detection and control functions of the stroke control component, especially when the reset member 131 reaches the reset position, the stroke control component can automatically control the reset member 131 to stop or retract, and the entire reset process can form a closed-loop control system, and the user can achieve one-touch reset through the switch 140.

[0060] In this way, users can achieve automatic resetting with one button instead of manually controlling the knob, reducing the operation steps of the ultrasound physician; at the same time, the system accurately controls the resetting instead of the physician's visual judgment to achieve resetting, reducing the physician's misjudgment, thereby reducing clinical patient discomfort and the probability of minimally invasive surgery.

[0061] In addition, the reset power input member can also be reset manually. For example, in one embodiment, the reset power input member includes a manual input member that allows a user to manually input a reset motion, and the manual input member is connected to the reset member 131 to drive the reset member 131 to move toward and away from the driven member 122.

[0062] The manual input part includes a reset knob, which is connected to the reset part 131 through a reset transmission mechanism, and the reset transmission mechanism can convert the rotational motion into reciprocating linear motion. The user inputs the rotational motion through the reset knob, and then transmits it to the reset part 131 through the transmission mechanism (such as the above-mentioned synchronous belt transmission mechanism, lead screw nut transmission mechanism, etc.), driving the reset part 131 to push the follower 122 to reset.

[0063] In addition to manually inputting such a rotational motion, a linear reciprocating motion may also be directly input, thereby directly driving the reset member 131 to reset.

[0064] In response to this manual control reset method, in one embodiment, the stroke control assembly includes a reset limiter, which is arranged on the moving trajectory of the reset member 131, and is used to prevent the reset member 131 from continuing to move when the reset member 131 moves to the reset position. When the reset member 131 is manually controlled to move, when the reset member 131 is against the reset limiter and can no longer move, it indicates that the reset member 131 has reached the reset position. The user does not need to watch the relevant instructions, but can directly operate the manual input member until the reset member 131 can no longer be controlled to move and stops. This method can also rely on structural design to accurately control the reset, thereby replacing the doctor's visual judgment to achieve reset, reducing the doctor's misjudgment, and thus reducing clinical patient discomfort and the probability of minimally invasive surgery.

[0065] Of course, the travel control assembly with such a reset limiter can also be used in an automatic reset mode. When the reset member 131 touches the reset limiter, a relevant signal can be generated to the control unit, and the control unit controls the reset member 131 to stop or retract.

[0066] In some embodiments, the stroke control assembly further includes a zero position stopper, which is disposed on the moving track of the reset member 131 when it retracts, and is used to stop the reset member 131 from continuing to move when the reset member 131 moves to the starting position. When the reset member 131 is manually controlled to move, when the reset member 131 abuts against the zero position stopper and cannot continue to retract, this position is regarded as the starting position when the reset member 131 moves to the reset position, indicating that the reset member 131 has reached the starting position.

[0067] Furthermore, in one embodiment, the travel control assembly includes a control unit and a reset detection unit. When the reset detection unit detects that the reset member 131 moves to the reset position, the control unit sends a first prompt signal and / or controls the reset member 131 to stop moving or retract. The reset detection unit can be combined with the above-mentioned manual drive mode and the automatic drive mode such as the motor 132. For example, in the manual drive mode, when the reset detection unit detects the reset member 131, it can prompt the user that the reset position has been reached, or prevent the reset member 131 from continuing to move by setting an obstacle; in the automatic drive mode, when the reset detection unit detects the reset member 131, it can directly control the motor 132 and other driving members to stop working or reverse rotation, prevent the reset member 131 from continuing to move or control the reset member 131 to retract.

[0068] For example, see Figure 6 and 7 In one embodiment, the reset detection unit includes a reset detection end 136, the reset member 131 is provided with a reset sensing member 137, the reset sensing member 137 moves together with the reset member 131, and the reset detection end 136 is arranged on the movement trajectory of the reset sensing member 137. When the reset sensing member 137 moves to the inspection area of ​​the reset detection end 136, the reset detection end 136 sends a signal to the control unit indicating that the reset member 131 has reached the reset position.

[0069] The reset sensing member 137 may be directly fixedly connected to the reset member 131 , or may be indirectly fixedly connected to the reset member 131 through other components, so as to move together with the reset member 131 .

[0070] Please refer to Figure 6In one embodiment, the reset sensing member 137 is fixedly mounted on the lead screw 134 and is located at the end of the lead screw 134. When the lead screw 134 and the reset member 131 move toward the follower 122, the reset sensing member 137 also moves accordingly. The corresponding reset detection end 136 is mounted on the upper end of the bracket 135. When the reset member 131 reaches the reset position, the reset sensing member 137 just enters the detection area of ​​the reset detection end 136, thereby triggering the reset detection end 136.

[0071] The reset detection terminal 136 may be a reset sensor that can collect changes in related signals, thereby sending different signals to the control unit to indicate that the reset member 131 has reached the reset position. For example, a photoelectric detection sensor may be used as the reset detection terminal 136. The reset sensing member 137 is designed to be a structure that can trigger the reset detection terminal 136. For example, when a photoelectric detection sensor is used as the reset detection terminal 136, the reset sensing member 137 may be a structure that can block light signals, such as a sheet.

[0072] Furthermore, the stroke control assembly further includes a zero position detection unit. When the zero position detection unit detects that the reset member 131 has retreated to the starting position, the control unit sends a second prompt signal and / or controls the reset member 131 to stop moving. The zero position detection unit is mainly used to control the stroke of the reset member 131 when retreating.

[0073] Please refer to Figure 6 and 7 In one embodiment, the zero position detection unit includes a zero position detection end 138, and the reset member 131 is provided with a zero position sensing member 139, and the zero position sensing member 139 moves together with the reset member 131. The zero position detection end 138 is arranged on the movement track of the zero position sensing member 139, and when the zero position sensing member 139 retreats to the inspection area of ​​the zero position detection end 138, the zero position detection end 138 sends a signal to the control unit indicating that the reset member 131 has reached the zero position.

[0074] The zero position sensing element 139 may be directly fixedly connected to the reset element 131 , or may be indirectly fixedly connected to the reset element 131 through other components, so as to move together with the reset element 131 .

[0075] Please refer to Figure 6 In one embodiment, the zero position sensing member 139 is fixedly mounted on the upper end of the reset member 131. When the reset member 131 moves back, the zero position sensing member 139 also moves accordingly. The corresponding zero position detection terminal 138 is mounted on the upper end of the bracket 135. When the reset member 131 reaches the zero position (starting position), the zero position sensing member 139 just enters the detection area of ​​the zero position detection terminal 138, thereby triggering the zero position detection terminal 138.

[0076] The zero position detection end 138 may be a zero position sensor, which can collect changes in relevant signals, thereby sending different signals to the control unit to indicate that the reset member 131 has reached the starting position. For example, a photoelectric detection sensor may be used as the zero position detection end 138. The zero position sensing member 139 is designed to be a structure capable of triggering the zero position detection end 138. For example, when a photoelectric detection sensor is used as the zero position detection end 138, the zero position sensing member 139 may be a structure capable of shielding light signals, such as a sheet.

[0077] Taking the example of the motor 132 driving the reset member 131 to move, when the switch 140 is not touched, the reset member 131 is at the zero position (starting position); when the switch 140 is touched, the motor 132 drives the reset member 131 to the reset position, thereby pushing the follower 122 to reset the inclination section 220, that is, the working end inclination is reset, and then the control unit controls the reset member 131 to return to the zero position. In addition, the signals of the reset detection terminal 136 and the zero position detection terminal 138 can be transmitted to the control unit, and the relevant signals can be converted into warning signals of the host interface to increase the reset recognition.

[0078] The reset member 131 is used to drive the follower 122 to move. Figure 5 and 6 In one embodiment, the reset member 131 has a contact portion capable of contacting all the follower members 122 so as to push the follower members 122 to move. Figure 5 and 6 In the structure shown, the follower 122 is a push plate, and when resetting, the reset member 131 can reset four follower members 122 (such as four racks) at the same time. In other embodiments, the reset member 131 may also be other structures.

[0079] In addition to manual control, the rotational power input member 110 shown in this embodiment may also include a second motor, and the second motor drives the active member 121 to rotate.

[0080] The above specific examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art, according to the concept of the present invention, some simple deductions, modifications or substitutions can be made.

Claims

1. An ultrasonic probe, characterized in that: include: An acoustic head assembly, the acoustic head assembly is used to generate and receive ultrasonic signals; At least two pulling wires connected to the acoustic head assembly, the pulling wires are used to drive the acoustic head assembly to bend in a specified direction; A transmission mechanism, comprising an active member capable of forward and reverse rotational motion and a driven member capable of outputting reciprocating linear motion, wherein the active member and the driven member are in transmission connection to convert the rotational motion of the active member into the reciprocating linear motion of the driven member, and the driven member is connected to the traction line to drive the traction line to move; A rotary power input member connected to the active member, for transmitting the rotary motion to the active member; and a reset device, the reset device comprising a reset member, a reset power input member and a stroke control assembly, the reset power input member being in transmission connection with the reset member to drive the reset member to move; the reset member and the follower are correspondingly arranged to drive the follower to move toward the side where the traction line is located to reset the traction line; When the reset member moves to the reset position, the stroke control component prompts and / or controls the reset member to stop moving or retreat.

2. The ultrasonic probe according to claim 1, characterized in that: The stroke control component includes a control unit, the reset power input member includes a motor, the motor drives the reset member to move toward or away from the driven member, and the control unit controls the start and stop of the motor.

3. The ultrasonic probe according to claim 2, characterized in that: The reset device comprises a screw-nut mechanism, the motor drives the nut in the screw-nut mechanism to rotate, and the reset member is installed on the screw in the screw-nut mechanism and reciprocates with the screw.

4. The ultrasonic probe according to claim 3, characterized in that: A driving wheel is mounted at the output end of the motor, and the driving wheel is connected to the nut via a synchronous belt to transmit the rotational motion output by the motor to the nut.

5. The ultrasonic probe according to claim 2, characterized in that: The resetting device comprises a bracket, the motor is fixedly mounted on the bracket, and the resetting member is movably mounted on the bracket.

6. The ultrasonic probe according to claim 1, characterized in that: The reset power input member includes a manual input member for a user to manually input a reset motion, and the manual input member is connected to the reset member to drive the reset member to move in a direction close to and away from the driven member.

7. The ultrasonic probe according to claim 6, characterized in that: The manual input member comprises a reset knob, and the reset knob is connected to the reset member via a reset transmission mechanism, and the reset transmission mechanism can convert the rotational motion into a reciprocating linear motion.

8. The ultrasonic probe according to claim 6, characterized in that: The stroke control assembly includes a reset limiter, which is arranged on the moving track of the reset member and is used to stop the reset member from continuing to move when the reset member moves to the reset position.

9. The ultrasonic probe according to claim 1, characterized in that: The stroke control assembly includes a control unit and a reset detection unit. When the reset detection unit detects that the reset member moves to the reset position, the control unit sends a first prompt signal and / or controls the reset member to stop moving or retreat.

10. The ultrasonic probe according to claim 9, characterized in that: The reset detection unit includes a reset detection end, the reset member is provided with a reset sensing member, the reset sensing member moves together with the reset member, and the reset detection end is arranged on the movement trajectory of the reset sensing member. When the reset sensing member moves to the inspection area of ​​the reset detection end, the reset detection end sends a signal to the control unit indicating that the reset member has reached the reset position.

11. The ultrasonic probe according to claim 9, characterized in that: The stroke control assembly further comprises a zero position detection unit. When the zero position detection unit detects that the reset member has retreated to the starting position, the control unit sends a second prompt signal and / or controls the reset member to stop moving.

12. The ultrasonic probe according to claim 11, characterized in that: The zero position detection unit includes a zero position detection end, the reset member is provided with a zero position sensing member, the zero position sensing member moves together with the reset member, the zero position detection end is arranged on the movement trajectory of the zero position sensing member, when the zero position sensing member retreats to the inspection area of ​​the zero position detection end, the zero position detection end sends a signal to the control unit indicating that the reset member has reached the zero position.

13. The ultrasonic probe according to claim 11, characterized in that: At least one of the reset detection unit and the zero position detection unit adopts a photoelectric detection sensor.

14. The ultrasonic probe according to any one of claims 1 to 13, characterized in that: The reset member has an abutting portion capable of abutting against all the follower members so as to push the follower members to move.

15. The ultrasonic probe according to any one of claims 1 to 13, characterized in that: The rotational power input member is a manual knob, and the manual knob is connected to the active member so that a user can manually drive the active member to rotate.

16. The ultrasonic probe according to claim 15, characterized in that: There are four traction lines, and the manual knob includes left and right bending knobs and up and down bending knobs. The transmission mechanism is divided into left and right bending transmission mechanism and up and down bending transmission mechanism; the left and right bending knobs are transmission-connected with the active parts of the left and right bending transmission mechanism, and there are two driven parts of the left and right bending transmission mechanism, which are respectively arranged on both sides of the corresponding active parts, and each driven part is respectively connected to a traction line to drive the sound head assembly to bend in the left and right directions; the up and down bending knobs are transmission-connected with the active parts of the up and down bending transmission mechanism, and there are two driven parts of the up and down bending transmission mechanism, which are respectively arranged on both sides of the corresponding active parts, and each driven part is respectively connected to a traction line to drive the sound head assembly to bend in the up and down directions.

17. The ultrasonic probe according to any one of claims 1 to 13, characterized in that: The rotational power input member includes a second motor, and the second motor drives the active member to rotate.

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