Roller locking structure of medical equipment and ultrasonic diagnostic instrument

Abstract

A roller locking structure (5) of medical equipment and an ultrasonic diagnostic instrument using the structure (5), wherein the roller locking structure (5) provides a manual control mechanism and a roller locking device (52), the manual control mechanism is connected to the roller locking device (52), and a user can control the roller locking device (52) to lock and / or unlock the roller through the manual control mechanism. This manual operation is more in line with the user's usage habits and is convenient for the user to control.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a roller locking structure of medical equipment and an ultrasonic diagnostic instrument. Background Art

[0002] When medical staff use medical equipment with mobile functions (such as cart-mounted ultrasound equipment, cart-mounted anesthesia machines, mobile beds, etc.), they often need the medical equipment to be able to stop steadily (wheels locked) at the required position based on the needs of operation, diagnosis and treatment; at the same time, they require the medical equipment to be able to easily turn and be controllable during transportation (especially on curves) to prevent uncontrollable collisions such as turning and skidding of the medical equipment.

[0003] At present, the central control brake system is a commonly used brake control system for mobile medical equipment. It uses a control mechanism to simultaneously control the braking and releasing actions of two or more casters. This central brake control system mainly has a double-pedal type and a single-pedal type. Whether it is a double-pedal or single-pedal structure, the braking and releasing of the brake are controlled by foot, which is very inconvenient. In particular, the single-pedal central brake system controls the braking and releasing actions of the central brake by stepping and hooking respectively. It is very difficult to operate with the instep hook action, and if the operator's instep is not well protected, it may cause pain or even scratches on the operator's instep. At the same time, this foot-operated control is difficult to operate during the operation of the machine, resulting in the inability to control the speed of the equipment when turning. Once the equipment turns too fast, it is very easy to cause a rollover accident. SUMMARY OF THE INVENTION

[0005] Technical issues

[0006] The present application provides a roller locking structure of a medical device and an ultrasonic diagnostic instrument using the structure, which is used for a user to manually control the roller, thereby facilitating the user's operation.

[0007] Solution to the problem

[0008] Technical Solutions

[0009] In one embodiment, a roller locking structure of a medical device is provided, comprising:

[0010] A roller that enables the medical device to be mobile;

[0011] A roller locking device, the roller locking device has an unlocked state, a semi-locked state and a fully locked state. In the unlocked state, the roller locking device releases the roller so that the roller can roll freely; in the semi-locked state, the roller locking device applies a force to the roller that can slow down the rolling of the roller; in the fully locked state, the roller locking device applies a force to the roller that can prevent the roller from rolling;

[0012] And a manual control mechanism, which is connected to the roller locking device and is used to control the state switching of the roller locking device through the manual control mechanism.

[0013] In one embodiment, the manual control mechanism includes a manual control component and an actuator. The manual control component is connected to the actuator via a mechanical structure or an electrical signal. The actuator is used to trigger the state switching of the roller locking device under the control of the manual control component.

[0014] In one embodiment, the roller locking device has a movable brake member, and the manual control mechanism controls the moving position of the brake member to cause the brake member to half-lock, fully lock or unlock the roller.

[0015] In one embodiment, the brake member semi-locks and / or fully locks the movement of the roller by applying a friction force to the roller.

[0016] In one embodiment, the brake member is made of rubber.

[0017] In one embodiment, the brake component has an unlocking position, a semi-locking position and a fully-locking position on its moving trajectory. When the brake component moves to the unlocking position, the brake component releases the roller, and the roller can roll freely. When the brake component moves to the semi-locking position, the brake component applies a force to the roller that can slow down the rolling of the roller. When the brake component moves to the fully-locking position, the brake component applies a force to the roller that can prevent the roller from rolling.

[0018] In one embodiment, the brake member has an inverted step-like structure, which is arranged facing the roller. When the brake member is respectively located in the semi-locked position and the fully locked position, the outer wall of the step-like structure contacts the roller, and the contact area of ​​the step-like structure with the roller in the semi-locked position is a first contact area, and the contact area of ​​the step-like structure with the roller in the fully locked position is a second contact area, and the area of ​​the second contact area is greater than that of the first contact area.

[0019] In one embodiment, the brake component has a first brake portion and a second brake portion, the first brake portion is arranged facing the roller, the second brake portion is located behind the first brake portion, and the outermost side of the second brake portion protrudes from the outermost side of the first brake portion to form an inverted step-like structure, when the brake component moves to a semi-locked position, the first brake portion contacts the roller, and when the brake component moves to a fully locked position, the first brake portion and the second brake portion contact the roller at the same time.

[0020] In one embodiment, the roller locking device includes a first elastic return member, and the actuator includes a second elastic return member. The first elastic return member is used to provide an elastic return force to the brake member to cause the brake member to unlock the roller, and the second elastic return member is used to provide an elastic return force to cause the brake member to lock the roller. The elastic return force of the second elastic return member is greater than the elastic return force applied to the brake member by the first elastic return member, so that the second elastic return member can drive the brake member to lock the roller, and the manual control member controls the force of the second elastic return member on the brake member.

[0021] In one embodiment, the actuator further includes a pressing member, the second elastic return member acts on the pressing member, the pressing member is separately arranged from the brake member, and can push the brake member toward the roller under the action of the second elastic return member.

[0022] In one embodiment, the actuator further includes a cable, there are more than two rollers, each of the rollers is provided with a roller locking device and a pressing member, and all the pressing members are connected to a manual control member through the cable.

[0023] In one embodiment, the actuator also includes at least one pressure rod, there are more than two rollers, each roller is provided with a corresponding roller locking device, one pressure rod simultaneously controls at least two roller locking devices to cooperate, the pressure piece and the pressure rod are fixedly connected to drive the pressure rod to move.

[0024] In one embodiment, the roller locking device and the roller are installed on a bracket, a mounting plate is provided above the bracket, the pressure member passes through the mounting plate from above, one end of the second elastic return member abuts the mounting plate, and the other end is arranged at the part where the pressure member passes through the mounting plate, and the elastic restoring force of the second elastic return member prompts the pressure member to press the brake member toward the roller.

[0025] In one embodiment, the roller locking device includes a third elastic return member, which is used to provide an elastic restoring force to the brake member to cause the brake member to lock the roller, and the manual control member controls the force of the third elastic return member on the brake member.

[0026] In one embodiment, the actuator includes a cable, one end of which is connected to the manual control member, and the other end of which is fixedly connected to the brake member for pulling the brake member away from the roller.

[0027] In one embodiment, the roller locking device further includes a trigger lock core, the brake member is fixedly connected to the trigger lock core, and the first elastic reset member is mounted on the trigger lock core.

[0028] In one embodiment, the roller locking structure uses a fully lockable caster, and the fully lockable caster includes the roller and the roller locking device.

[0029] In one embodiment, the actuator uses at least one of a push-pull electromagnet, a motor, a hydraulic power component and a pneumatic power component as a power output structure, the manual control component is electrically connected to the actuator, and the actuator drives the brake component to move closer to and / or away from the roller.

[0030] In one embodiment, when a motor is used as a power output structure, the actuator includes a drive motor, a rotating screw, a nut and a guide member. The rotating screw is fixed to the output end of the drive motor, the nut is threadedly connected to the rotating screw, and the nut is installed on the guide member. When the drive motor outputs rotational motion, the nut is limited by the guide member to approach and / or move away from the roller locking device, so as to drive the brake member to approach and / or move away from the roller.

[0031] In one embodiment, the output end of the actuator is fixedly connected to the brake member and moves integrally therewith.

[0032] In one embodiment, the manual control element is a control handle and / or a circuit button.

[0033] In one embodiment, a roller locking structure of a medical device is provided, comprising:

[0034] A roller that enables the medical device to be mobile;

[0035] Roller locking device, used to lock and unlock the roller;

[0036] And a manual control mechanism, which is connected to the roller locking device, and a user can control the roller locking device to lock and / or unlock the roller through the manual control mechanism.

[0037] An ultrasonic diagnostic instrument is provided in one embodiment, including a main unit, a control panel and a display device, and is characterized in that it also includes the roller locking structure as described in any one of the above items, wherein the manual control component is provided in at least one of the control panel, the main unit and the display device.

[0038] An ultrasonic diagnostic instrument is provided in one embodiment, including a mainframe, a control panel and a display device, and is characterized in that it also includes the roller locking structure as described above.

[0039] Advantageous Effects of the Invention

[0040] Beneficial Effects

[0041] According to the roller locking structure of the above embodiment, a manual control mechanism and a roller locking device are provided. The manual control mechanism is connected to the roller locking device. The user can control the roller locking device through the manual control mechanism, thereby controlling the state of the roller. This manual operation is closer to the user's usage habits and is convenient for the user to control. At the same time, based on the manual control method, the roller locking device can have an unlocked state, a semi-locked state and a fully locked state. In the unlocked state, the roller locking device releases the roller so that the roller can roll freely; in the semi-locked state, the roller locking device applies a force to the roller that can slow down the roller's rolling; in the fully locked state, the roller locking device applies a force to the roller that can prevent the roller from rolling. The user can conveniently manually control the speed of the roller, especially when pushing the medical device through a corner, the roller speed can be slowed down to a controllable degree, avoiding the medical device from turning and swinging or rolling due to excessive speed, thereby improving the safety of use.

[0042] Brief description of the accompanying drawings BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of an ultrasonic diagnostic instrument in an embodiment of the present application;

[0044] Figure 2 It is a cross-sectional schematic diagram of a roller and a roller locking device in a fully locked state in one embodiment of the present application;

[0045] Figure 3 It is a cross-sectional schematic diagram of a roller and a roller locking device in an unlocked state in one embodiment of the present application;

[0046] Figure 4 This is a structural schematic diagram of an ultrasonic diagnostic instrument in another embodiment of the present application;

[0047] Figure 5 It is a cross-sectional schematic diagram of a roller and a roller locking device in a semi-locked state in one embodiment of the present application;

[0048] Figure 6 This is a schematic diagram of the movement of an ultrasonic device in one embodiment of the present application;

[0049] Figure 7 This is a schematic diagram of the cooperation between the manual control mechanism and the roller locking device in one embodiment of the present application;

[0050] Figure 8 for Figure 7 A schematic cross-sectional view of the manual control mechanism and the roller locking device in the fully locked state in the illustrated embodiment;

[0051] Fig. 9 for Figure 7 A schematic cross-sectional view of the manual control mechanism and the roller locking device in the unlocked state in the illustrated embodiment;

[0052] Fig.10 This is a schematic diagram of the cooperation between the manual control mechanism and the roller locking device in another embodiment of the present application;

[0053] Fig.11 for Fig.10 A schematic cross-sectional view of the manual control mechanism and the roller locking device in the fully locked state in the illustrated embodiment;

[0054] Fig.12 for Fig.10 A schematic cross-sectional view of the manual control mechanism and the roller locking device in the unlocked state in the illustrated embodiment;

[0055] Fig.13 A schematic diagram of a roller locking device in another embodiment of the present application;

[0056] Fig.14 for Fig.13 A schematic cross-sectional view of the roller locking device in the illustrated embodiment;

[0057] Fig.15 It is a cross-sectional schematic diagram of a roller locking device in another embodiment of the present application.

[0058] Embodiments of the invention

[0059] Embodiments of the present invention DETAILED DESCRIPTION

[0060] 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.

[0061] 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.

[0062] 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).

[0063] An embodiment of the present application provides an ultrasonic diagnostic instrument, which may be a desktop ultrasonic diagnostic instrument or other ultrasonic diagnostic instruments.

[0064] Please refer to Figure 1 The ultrasonic diagnostic apparatus comprises a display device 1, a control panel 3 and a host 4. The control panel 3 is mounted on the host 4. The control panel 3 is generally provided with buttons, knobs, etc., and the user can operate the ultrasonic diagnostic apparatus through the control panel 3. The display device 1 is used to display information of the processing process, the result of the processing or other information. The display device 1 is mounted on the host 4 or the control panel 3 through a support arm 2, for example, Figure 1 In the structure shown, the support arm 2 is installed on the host 4.

[0065] For further information, please refer to Figure 1-3 The ultrasonic diagnosis also includes a roller locking structure 5. The roller locking structure 5 includes a roller 51, a roller locking device 52 and a manual control mechanism.

[0066] The roller 51 is usually installed at the bottom of the entire ultrasonic diagnostic instrument, so that the ultrasonic diagnostic instrument (or other medical equipment) has a mobile function. The roller locking device 52 has an unlocked state, a semi-locked state, and a fully locked state. In the fully locked state, the roller locking device 52 applies a force to the roller 51 that prevents the roller 51 from rolling. For example, Figure 2 As shown in FIG. 1 , at this time, the roller locking device 52 locks the roller 51, and the roller 51 cannot roll. In the unlocked state, the roller locking device 52 releases the roller 51, so that the roller 51 can roll freely, as shown in FIG. Figure 3 As shown, at this moment, the roller locking device 52 unlocks the roller 51, and the roller 51 can roll freely. In the semi-locked state, the roller locking device 52 applies a force to the roller 51 that can slow down the rolling of the roller 51.

[0067] The manual control mechanism is connected to the roller locking device 52, and the user can control the switching of the state of the roller locking device 52 through the manual control mechanism. This manual operation is closer to the user's usage habits and is convenient for the user to control. Based on this manual control method, the user can conveniently manually switch the state of the roller locking device 52 to control the speed of the roller 51. Especially when pushing the medical device through a corner, the speed of the roller 51 can be slowed down to a controllable level to avoid the medical device from turning or tipping over due to excessive speed, thereby improving the safety of use.

[0068] The manual control mechanism can be used to control only the roller locking device 52 to half-lock or fully lock the roller 51. For example, the roller locking device 52 is designed to not lock the roller 51 in a normal state, and then when the roller 51 needs to be half-locked or fully locked, the user can achieve this through the manual control mechanism. The manual control mechanism can also be used to control only the roller locking device 52 to half-lock or unlock the roller 51. For example, the roller locking device 52 is designed to always fully lock the roller 51 in a normal state, and then when the roller 51 needs to be unlocked or adjusted to half-locked, the user can achieve this through the manual control mechanism. Or the manual control mechanism can also be used to control the roller locking device 52 to switch between the unlocked state, the half-locked state and the fully locked state, so that the user can switch the locking state of the roller 51 according to actual needs.

[0069] Furthermore, the manual control mechanism includes a manual control member 531 and an actuator. The manual control member 531 is connected to the actuator through a mechanical structure or an electrical signal. The actuator is used to trigger the state switching of the roller locking device 52 under the control of the manual control member 531. The manual control member 531 can be provided on at least one of the display device 1, the control panel 3 and the host 4. These areas are convenient for users to perform manual control, especially the manual control member 531 is provided on the control panel 3, which is more convenient for users to operate.

[0070] Please refer to Figure 1 In one embodiment, the manual control component 531 is arranged on the control panel 3. Since the control panel 3 is usually provided with various operation buttons or knobs, etc., which are the areas where users often operate manually, and the control panel 3 is usually located at the most comfortable operating height for users, the manual control component 531 is arranged on the control panel 3, which is more in line with the user's operating habits and makes it more convenient for users to operate the manual control component 531.

[0071] The user controls the roller 51 through the manual control member 531. The manual control member 531 can be a manual control mechanism or an electrical signal control actuator, thereby transmitting the user's instructions and intentions to the roller locking device 52. In one embodiment, the manual control member 531 can be a control handle and / or a circuit button or other triggering device.

[0072] Please refer to Figure 1 ,exist Figure 1 In the illustrated embodiment, the manual control member 531 is a control handle, and the user can control the roller locking device by turning the control handle. Figure 4 ,exist Figure 4 In the illustrated embodiment, the manual control member 531 is a circuit button, and the user can control the roller locking device by pressing the control button.

[0073] Of course, the manual control element 531 may also be other types of control elements, which are all manually triggered by the user.

[0074] Furthermore, the roller locking device 52 can achieve full locking or half locking of the roller 51 in various ways, such as locking the roller 51 by applying friction force, engaging a gear that rotates integrally with the roller 51 by a ratchet, etc. The roller locking device 52 can lock or half lock the roller 51 by acting directly on the roller 51 and acting on other components fixedly connected to the roller 51.

[0075] Please refer to Figure 2 and 3 In one embodiment, the roller locking device 52 has a movable brake member 521. The manual control mechanism controls the moving position of the brake member 521 to half-lock, fully lock or unlock the roller 51.

[0076] Furthermore, in one embodiment, there are an unlocking position, a semi-locking position, and a fully locked position on the moving track of the brake member 521. When the brake member 521 moves to the unlocking position, the roller locking device 52 is in an unlocking state, the brake member 521 releases the roller 51, and the roller 51 can roll freely; when the brake member 521 moves to the semi-locking position, the roller locking device 52 is in a semi-locking state, the brake member 521 contacts the roller 51, and the brake member 521 applies a force to the roller 51 that can slow down the rolling of the roller 51. When the brake member 521 moves to the fully locked position, the roller locking device 52 is in a fully locked state, the brake member 521 contacts the roller 51, and the brake member 521 applies a force to the roller 51 that can prevent the roller 51 from rolling.

[0077] As mentioned above, the brake member 521 can half-lock and / or fully lock the movement of the roller 51 by applying friction to the roller 51. When the brake member 521 locks the roller 51 by applying friction, the brake member 521 can be made of rubber.

[0078] The advantage of using friction to lock the roller 51 is that the roller 51 can be fully locked or partially locked by adjusting the friction applied by the brake member 521 to the roller 51. Figure 2 As shown, at this time, the brake member 521 is in the fully locked position, and has a sufficient contact surface with the roller 51, thereby providing a sufficient force to lock the roller 51, so that the roller 51 is in the fully locked state. Figure 5As shown, at this time, the brake member 521 is in a semi-locked position, and has a certain size of contact surface with the roller 51. The friction force of the brake member 521 on the roller 51 is not enough to completely lock the roller 51, but the friction force it exerts can slow down the roller 51, making the roller 51 in a semi-locked state. With this structure, when the equipment is transported through a bend, the function of manual braking can be realized to control the running speed of the equipment and make it easy to turn. Compared with the traditional brake locking method, this brake structure can control the pushing speed of the equipment when turning through a manual control mechanism.

[0079] In one embodiment, the brake member 521 has an inverted step-like structure, which is arranged facing the roller 51. When the brake member 521 is respectively in the semi-locked position and the fully locked position, the outer wall of the step-like structure contacts the roller 51, and the contact area between the step-like structure and the roller 51 in the semi-locked position is the first contact area, and the contact area between the step-like structure and the roller 51 in the fully locked position is the second contact area, and the area of ​​the second contact area is larger than the area of ​​the first contact area. The area of ​​the second contact area is large enough to ensure that the step-like structure completely locks the roller 51, while the area of ​​the first contact area cannot completely lock the roller 51, but can slow down the roller 51.

[0080] Please refer to Figure 2 , 3 In one embodiment, the brake member 521 has a first brake portion 5211 and a second brake portion 5212. The first brake portion 5211 is disposed facing the roller 51, and the second brake portion 5212 is located behind the first brake portion 5211, and the outermost side of the second brake portion 5212 protrudes outward from the outermost side of the first brake portion 5211, so that the first brake portion 5211 and the second brake portion 5212 can form an inverted step-like structure. When the brake member 521 moves to a semi-locked position, the first brake portion 5211 contacts the roller 51. When the brake member 521 moves to a fully locked position, the first brake portion 5211 and the second brake portion 5212 contact the roller 51 at the same time.

[0081] Please continue to refer to Figure 2 , 3 5, the distance between the first brake part 5211 and the corresponding position of the roller 51 in the unlocked state is defined as L1, and the distance between the second brake part 5212 and the corresponding position of the roller 51 in the unlocked state is defined as L2. Among them, the position corresponding to the first brake part 5211 and the second brake part 5212 of the roller 51 refers to the position where the roller 51 will contact the first brake part 5211 and the second brake part 5212 (the figure shows the approximate position). When the roller 51 is in the unlocked state, that is, the free state, as Figure 3 As shown, L2>L1>0. When the roller 51 is in a semi-locked state, as shown in FIG. Figure 5As shown, L1 = 0, and L2 > 0. In this state, the ultrasonic diagnostic instrument that is running too fast or turning can be decelerated, thereby enhancing the controllability of the ultrasonic diagnostic instrument. Figure 2 As shown, L2=0, at which time the roller 51 cannot roll and the ultrasonic diagnostic apparatus stops moving.

[0082] Please refer to Figure 6 When the doctor pushes the ultrasound diagnostic instrument to go around a bend, it can be roughly divided into three states: deceleration state before going around a bend (a) to (b), the speed of the bend is reduced to the minimum or braked (b), and the normal speed is restored after going around a bend (b to (c). In this process, the manual control member 531 is needed to control the speed of the roller 51 so as to smoothly transport the ultrasound diagnostic instrument. At this time, the advantage of manual control over foot control can be reflected. The foot control brake cannot accurately and timely control the speed of the ultrasound diagnostic instrument.

[0083] Please continue to refer to Figure 2 , 3 In one embodiment, the roller locking device 52 includes a trigger lock core 522 (which may be omitted) and a first elastic reset member 523. The brake member 521 is fixedly connected to the trigger lock core 522. The first elastic reset member 523 provides an elastic restoring force to the brake member 521 to cause the brake member 521 to unlock the roller 51 without being subjected to an external force applied by a manual control mechanism. The roller locking device 52 and the roller 51 may be mounted on a bracket. The first elastic reset member 523 may be a spring, which abuts against the brake member 521 or the trigger lock core 522 to keep the trigger lock core 522 and the brake member 521 away from the surface of the roller 51.

[0084] The trigger lock cylinder 522 is movable, and the manual control member 531 controls the movement of the brake member 521 by controlling the movement of the trigger lock cylinder 522 or the brake member 521, which includes directly controlling the movement of the trigger lock cylinder 522 or the brake member 521, for example, the manual control mechanism is directly connected to the trigger lock cylinder 522 or the brake member 521 to control its movement. Of course, it can also include indirectly controlling the movement of the trigger lock cylinder 522 or the brake member 521, for example, the manual control mechanism is not directly connected to the trigger lock cylinder 522 or the brake member 521, but controls its movement by changing the force state of the trigger lock cylinder 522 or the brake member 521, for example, please refer to Figure 7-9In one embodiment, the actuator includes a second elastic reset member 534, which is used to provide an elastic restoring force to cause the brake member 521 to lock the roller 51 when not subjected to an external force applied by the manual control member 531. The elastic restoring force is greater than the force applied by the first elastic reset member 523 to the trigger lock cylinder 522 or the brake member 521, thereby driving the brake member 521 to lock the roller 51. The manual control member 531 controls the force of the second elastic reset member 534 on the trigger lock cylinder 522 or the brake member 521 to eliminate or weaken the control of the second elastic reset member 534 on the trigger lock cylinder 522 or the brake member 521, so that the brake member 521 releases the roller 51 under the action of the first elastic reset member 523, so that the roller 51 is switched to a semi-locked or fully locked state.

[0085] In order to be able to press and trigger the lock cylinder 522 or the brake member 521, and at the same time enable the manual control member 531 to unlock the roller 51, please continue to refer to Figure 7-9 In one embodiment, the actuator further includes a pressing member 533, which is movably arranged. The second elastic reset member 534 acts on the pressing member 533 to drive the pressing member 533 to press the brake member 521 toward the roller 51. The manual control member 531 is connected to the pressing member 533, and the position of the pressing member 533 is changed by the manual control member 531 to release the trigger lock cylinder 522 or the brake member 521. The pressing member 533 can be separated from the trigger lock cylinder 522 or the brake member 521, but can press the trigger lock cylinder 522 or the brake member 521 under the action of the second elastic reset member 534. When the pressing member 533 is separated from the trigger lock cylinder 522 or the brake member 521, the trigger lock cylinder 522 or the brake member 521 moves in a direction away from the roller 51 under the action of the first elastic reset member 523.

[0086] Please continue to refer to Figure 7-9 In one embodiment, the actuator further comprises a cable 532. One end of the cable 532 is fixedly connected to the manual control member 531, and the other end is fixedly connected to the pressing member 533. The second elastic restoring member 534 is used to provide an elastic restoring force to the pressing member 533 to cause the brake member 521 to lock the roller 51, for example, to cause the pressing member 533 to press the brake member 521.

[0087] In this embodiment, the second elastic restoring member 534 provides an elastic restoring force to the brake member 521 or triggers the lock core 522 to cause the brake member 521 to lock the roller 51. Figure 2 As shown, the roller 51 is in a fully locked state in a normal state. The manual control member 531 (for example, a control handle) is used to change the position of the pressing member 533, so that the trigger lock cylinder 522 and the brake member 521 change their positions relative to the roller 51, for example, the pressing member 533 overcomes the elastic restoring force of the second elastic reset member 534 and moves upward, as shown in FIG. Figure 3and 5 As shown, the trigger lock core 522 and the brake member 521 move away from the roller 51 under the action of the first elastic return member 523, and the roller 51 is placed in a semi-locked or unlocked state according to the distance of the upward movement.

[0088] like Figure 8 As shown, the second elastic reset member 534 can be a spring. Under normal conditions, the pressing member 533 presses the trigger lock core 522 (or directly contacts the brake member 521) under the action of the second elastic reset member 534, so that the brake member 521 locks the roller 51. Fig. 9 As shown, the manual control member 531 can overcome the elastic restoring force of the second elastic reset member 534 and pull the pressing member 533 upward, thereby releasing the trigger lock cylinder 522 and the brake member 521. The brake member 521 is reset under the action of the first elastic reset member 523 to release the roller 51.

[0089] In another embodiment, the roller locking device 52 includes a third elastic reset member, and the third elastic reset member is used to provide an elastic restoring force to the brake member 521 to cause the brake member 521 to lock the roller 51. The manual control mechanism is used to control the action of the third elastic reset member on the brake member. The third elastic reset member can be a spring, for example, it can be similar to the structure of the first elastic reset member mentioned above, but the direction of elastic deformation is opposite, that is, the third elastic reset member is used to make the brake member press the roller. At this time, the actuator may include a cable or other structure. One end of the cable is connected to the manual control member, and the other end is fixedly connected to the brake member or other components fixed to the brake member, so as to pull the brake member away from the roller.

[0090] Further, in Figure 7-9 In the illustrated embodiment, there are more than two rollers 51, and each roller 51 is provided with a roller locking device 52 and a pressing member 533. All the pressing members 533 and the rollers 51 are connected to a manual control member 531 through a cable 532, and are controlled by the manual control member 531, so that all the rollers 51 are controlled by the manual control member 531.

[0091] For further information, please refer to Figure 10-12In one embodiment, the actuator further includes at least one pressure rod 537. There are more than two rollers 51, and a roller locking device 52 is correspondingly provided for each roller 51. One pressure rod 537 controls at least two roller locking devices 52 simultaneously. A pressing member 533 and a pressure rod 537 are fixedly connected, and all the pressing members 533 are connected to a manual control member 531 through a cable 532. When the cable 532 pulls the pressing member 533, it also drives the pressure rod 537 to move. Both ends of the pressure rod 537 can be mounted on a bracket 539 through a connecting block 5310. The pressure rod 537 may have a downwardly protruding protrusion 5371, and the protrusion 5371 is used to press the trigger lock core 522 or the brake member 521 of the roller locking device 52.

[0092] Please continue to refer to Figure 10-12 In one embodiment, the roller locking device 52 and the roller 51 are mounted on a bracket 539. A mounting plate 538 is provided above the bracket 539, and the pressing member 533 passes through the mounting plate 538 from above. One end of the second elastic reset member 534 abuts against the mounting plate 538, and the other end is arranged at the portion where the pressing member 533 passes through the mounting plate 538. The elastic restoring force thereof causes the pressing member 533 and the pressure rod 537 to move downward, pushing the trigger lock core 522 and the brake member 521 to move downward, and locking the roller 51.

[0093] Under normal conditions, the pressing member 533 and the pressure rod 537 press the trigger lock core 522 under the action of the second elastic reset member 534, so that the brake member 521 locks the roller 51. The manual control member 531 (for example, a control handle) is connected to the pressing member 533 to control its stroke. When the manual control member 531 (for example, a control handle) is adjusted (such as pressed), the pressing member 533 moves upward by a certain stroke, thereby driving the pressure rod 537 to move upward by a certain stroke. The distance between the pressure rod 537 and the trigger lock core 522 can be represented by H, thereby achieving unlocking of the roller 51. Of course, by controlling the upward movement distance of the pressure rod 537, the roller 51 can also be semi-locked.

[0094] Furthermore, in one embodiment, the manual control element 531 is connected to the actuator through an electrical signal. The manual control element 531 can be any type of electrical signal triggering device.

[0095] Specifically, the actuator uses at least one of a motor, a hydraulic power unit and a pneumatic power unit as a power output structure. The manual control unit is electrically connected to the actuator to achieve electrical control. The actuator drives the brake unit 521 to move closer to and / or away from the roller 51.

[0096] Please refer to Fig.13 and 14In one embodiment, the actuator 536 includes a driving motor 5311, a rotating screw 5312, a nut 5313 and a guide member 5314. The rotating screw 5312 is fixed to the output end of the driving motor 5311, the nut 5313 is threadedly connected to the rotating screw 5312, and the nut 5313 is installed on the guide member 5314. When the driving motor 5311 outputs a rotational motion, the nut 5313 is limited by the guide member 5314 to approach and / or move away from the roller locking device 52, so as to drive the brake member 521 to approach and / or move away from the roller 51.

[0097] The manual control part 531 (such as a trigger button) is installed in the control panel and is connected to the power supply and the motor 5311 through wires. The actuator is installed on the bracket 539 and can directly act on the roller locking device 52 through the hole on the bracket 539. The motor 5311 is connected to the guide member 5314 through the sliding bushing 5315, the rotating screw 5312, and the sliding bushing 5316. The relative positions of the motor 5311, the sliding bushing 5315, the rotating screw 5312, the sliding bushing 5316 and the guide member 5314 are fixed. When the motor shaft rotates, it will drive the rotating screw 5312 to rotate relative to the sliding bushing 5315, the sliding bushing 5316 and the guide member 5314. The rotating screw 5312 is connected to the nut 5313 through a thread, and the nut 5313 cannot rotate relative to the guide member 5314 due to structural limitation. Therefore, when the rotating screw 5312 rotates, the nut 5313 can only move vertically relative to the guide member 5314.

[0098] Taking the first elastic reset member (the structure can refer to the above 523) as an example, the first elastic reset member is used to provide the brake member 521 with an elastic restoring force to cause the brake member 521 to unlock the roller 51. Under normal conditions, the nut 5313 is in a low position, pressing the trigger lock core 522, and the roller 51 is in a fully locked state. When the operator operates the manual control member 531 (such as a trigger button), when the motor 5311 is turned on for rotation, the rotating screw 5312 will rotate, the nut 5313 will rise vertically, and the trigger lock core 522 moves in the same direction as the nut 5313 under the action of the built-in first elastic reset member, thereby unlocking or half-locking the roller 51. When the operator reversely operates the trigger button 32, the motor 5311 is turned on for reverse rotation, the rotating screw 5312 rotates in the reverse direction, and the nut 5313 will drop vertically, acting on the trigger lock core 522, thereby locking the roller 51.

[0099] In addition, please refer to Fig.15 In one embodiment, the actuator is a push-pull electromagnet 5317, which drives the brake member 521 to move closer to and / or away from the roller 51.

[0100] Taking the first elastic reset member (the structure can refer to the above 523) as an example, the first elastic reset member is used to provide the brake member 521 with an elastic restoring force to cause the brake member 521 to unlock the roller 51. Under normal conditions, the lock cylinder with reset function in the push-pull electromagnet 5317 is located at a low position, pressing the trigger lock cylinder 522, and the roller 51 is in a fully locked state. When the operator operates the manual control member 531 (such as a trigger button), after the push-pull electromagnet 5317 is turned on, the lock cylinder with reset function 5318 rises vertically, and the trigger lock cylinder 522 moves in the same direction as the lock cylinder with reset function 5318 under the action of the built-in first elastic reset member, so as to achieve the unlocking or half locking of the roller 51. When the operator stops operating the manual control member 531 (such as a trigger button), the push-pull electromagnet 5317 is powered off, and the lock cylinder with reset function 5318 drops vertically, acting on the trigger lock cylinder 522, so as to achieve the locking of the roller 51.

[0101] In addition to driving the brake member 521 by triggering the lock core 522, in one embodiment, the output end of the actuator is fixedly connected to the brake member 521 and moves integrally. For example, the nut 5313 or the lock core 5318 is directly fixedly connected to the brake member 521 to directly drive the brake member 521 to lock and unlock the roller 51.

[0102] Of course, the above are just a few examples. The manual control member 321 can also control the actuator to trigger the roller locking device 52 in other ways. Based on the above examples, other variations are easy for those skilled in the art to think of.

[0103] Furthermore, in one embodiment, the roller locking structure uses a fully lockable caster. This fully lockable caster itself includes a roller 51 and a roller locking device 52. Of course, in addition to this existing fully lockable caster, in other embodiments, the roller 51 and the roller locking device 52 can also be designed separately to achieve the above purpose.

[0104] The ultrasonic diagnostic instrument adopts this roller locking structure, so that the ultrasonic diagnostic instrument can manually control the movement state of the roller 51. Of course, the roller locking structure is not only applicable to the ultrasonic diagnostic instrument, but also can be applied to other medical devices that need to lock and unlock the roller 51.

[0105] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not used to limit the present invention. For those skilled in the art, according to the concept of the present invention, the above specific implementation methods can be changed.

Claims

1. An ultrasonic diagnostic instrument, comprising a mainframe, a control panel for a user to operate the ultrasonic diagnostic instrument, and a display device for displaying information of a processing process, a result of a processing completion, or other information, characterized in that: It also includes a roller locking structure, wherein: The roller locking structure comprises: A roller, which enables the medical device to have a mobile function; A roller locking device, wherein the roller locking device has a movable brake member; and a manual control mechanism, the manual control mechanism being connected to the brake member and used for controlling the moving position of the brake member so that the brake member half-locks, fully locks or unlocks the roller; The brake member has an unlocking position, a half-locking position and a fully locked position on its moving track. The brake member has a first brake portion and a second brake portion. The first brake portion is arranged facing the roller, and the second brake portion is located behind the first brake portion. The outermost side of the second brake portion protrudes from the outermost side of the first brake portion to form an inverted step-like structure. When the brake member moves to the unlocking position, the brake member releases the roller, and the roller can roll freely; when the brake member moves to the semi-locking position, the first brake portion contacts the roller, and the contact area of ​​the step-shaped structure with the roller in the semi-locking position is the first contact area; when the brake member moves to the full-locking position, the first brake portion and the second brake portion contact the roller at the same time, and the contact area of ​​the step-shaped structure with the roller in the full-locking position is the second contact area; the area of ​​the second contact area is greater than that of the first contact area; The manual control mechanism is arranged on the control panel; the manual control mechanism includes an actuator, and the actuator also includes at least one pressure rod. There are more than two rollers, and each roller is correspondingly provided with a roller locking device. One pressure rod controls at least two roller locking devices simultaneously.

2. The ultrasonic diagnostic apparatus according to claim 1, characterized in that: The manual control mechanism comprises a manual control member, which is connected to an actuator via a mechanical structure or an electrical signal, and the actuator is used to trigger the state switching of the roller locking device under the control of the manual control member.

3. The ultrasonic diagnostic apparatus according to claim 1, characterized in that: The brake component is made of rubber.

4. The ultrasonic diagnostic apparatus according to claim 2, characterized in that: The roller locking device includes a first elastic return member, and the actuator includes a second elastic return member. The first elastic return member is used to provide an elastic return force to the brake member to cause the brake member to unlock the roller, and the second elastic return member is used to provide an elastic return force to cause the brake member to lock the roller. The elastic return force of the second elastic return member is greater than the elastic return force applied to the brake member by the first elastic return member, so that the second elastic return member can drive the brake member to lock the roller, and the manual control member controls the force of the second elastic return member on the brake member.

5. The ultrasonic diagnostic apparatus according to claim 4, characterized in that: The actuator also includes a pressing member, the second elastic return member acts on the pressing member, the pressing member is separately arranged from the brake member, and can push the brake member to press toward the roller under the action of the second elastic return member.

6. The ultrasonic diagnostic apparatus according to claim 5, characterized in that: The actuator also includes a cable. There are more than two rollers. Each roller is correspondingly provided with a roller locking device and a pressing member. All the pressing members are connected to a manual control member through the cable.

7. The ultrasonic diagnostic apparatus according to claim 5, characterized in that: The pressing piece is fixedly connected to the pressing rod to drive the pressing rod to move.

8. The ultrasonic diagnostic apparatus according to claim 5, characterized in that: The roller locking device and the roller are installed on a bracket, a mounting plate is provided above the bracket, the pressure member passes through the mounting plate from above, one end of the second elastic return member abuts the mounting plate, and the other end is arranged at the part where the pressure member passes through the mounting plate, the elastic restoring force of the second elastic return member prompts the pressure member to press the brake member toward the roller.

9. The ultrasonic diagnostic apparatus according to claim 1, wherein: The roller locking device comprises a third elastic reset member, which is used to provide an elastic restoring force to the brake member to cause the brake member to lock the roller, and the manual control member controls the force of the third elastic reset member on the brake member.

10. The ultrasonic diagnostic apparatus according to claim 2, characterized in that: The actuator comprises a cable, one end of which is connected to the manual control member, and the other end of which is fixedly connected to the brake member, so as to pull the brake member away from the roller.

11. The ultrasonic diagnostic apparatus according to claim 4, characterized in that: The roller locking device also includes a trigger lock core, the brake member is fixedly connected to the trigger lock core, and the first elastic reset member is installed on the trigger lock core.

12. The ultrasonic diagnostic apparatus according to claim 1, characterized in that: The roller locking structure uses a fully lockable caster, and the fully lockable caster includes the roller and the roller locking device.

13. The ultrasonic diagnostic apparatus according to claim 2, characterized in that: The actuator adopts at least one of a push-pull electromagnet, a motor, a hydraulic power component and a pneumatic power component as a power output structure, the manual control component is electrically connected to the actuator, and the actuator drives the brake component to approach and / or move away from the roller.

14. The ultrasonic diagnostic apparatus according to claim 13, wherein: When a motor is used as a power output structure, the actuator includes a driving motor, a rotating screw, a nut and a guide member. The rotating screw is fixed to the output end of the driving motor, the nut is threadedly connected to the rotating screw, and the nut is installed on the guide member. When the driving motor outputs rotational motion, the nut is limited by the guide member to approach and / or move away from the roller locking device, so as to drive the brake member to approach and / or move away from the roller.

15. The ultrasonic diagnostic apparatus according to claim 13, wherein: The output end of the actuator is fixedly connected to the brake member and moves integrally therewith.

16. The ultrasonic diagnostic apparatus according to claim 2, characterized in that: The manual control element is a control handle and / or a circuit button.

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