Ultrasonic device

Abstract

The present invention provides an ultrasonic device, comprising: an operating table; a main unit, the main unit being provided with an input and output interface connected to the operating table; a support assembly, comprising a fixing member, a support arm and a force-applying mechanism; the fixing member being provided on the main unit; the support arm having a first end and a second end, the first end of the support arm being rotatably connected to the fixing member, and the operating table being rotatably connected to the second end; the force-applying mechanism comprising an elastic force-applying member and a locker, the two ends of the elastic force-applying member being respectively connected to the fixing member and the support arm, and forming a triangular support structure for supporting the operating table with the support arm and the fixing member, the elastic force-applying member changing its length as the support arm rotates around its first end to maintain the triangular support structure, and the locker locking the length of the elastic force-applying member when the support arm remains stationary. The support arm of the ultrasonic device of the present invention is smaller in volume than the support arm of the traditional ultrasonic device.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an ultrasonic device. Background Art

[0002] Ultrasonic equipment usually includes a main unit, an operating table and a support arm for supporting the operating table, wherein a human-computer interaction device is installed on the operating table. The size of the support arm will affect the volume of the ultrasonic equipment, especially for desktop ultrasonic equipment, which is larger. In order to achieve the lifting and lowering of the operating table, the traditional support arm integrates the components that realize the lifting and lowering function of the support arm, such as the compression spring component, in the internal space. On the other hand, the inside of the support arm also needs to reserve wiring space for the entire wiring harness of the ultrasonic equipment, which makes the support arm of the current ultrasonic equipment larger. How to reduce the volume of the support arm without reducing the lifting effect of the operating table is a problem to be improved or solved. Utility Model Content

[0003] An embodiment provides an ultrasonic device, comprising:

[0004] Worktop;

[0005] A host computer, wherein the host computer is provided with an input and output interface connected to an operation table, and is used for receiving ultrasonic echoes and processing ultrasonic echo signals into a visualized ultrasonic image;

[0006] A support assembly, including a fixing member, a support arm and a force applying mechanism with a locking function;

[0007] The fixing member is arranged on the host;

[0008] The support arm has a first end and a second end, the first end of the support arm is rotatably connected to the fixing member, and the operating table is rotatably connected to the second end of the support arm;

[0009] The force-applying mechanism comprises an elastic force-applying member and a locker, wherein two ends of the elastic force-applying member are respectively connected to the fixing member and the support arm, and the elastic force-applying member, together with the support arm and the fixing member, form a triangular support structure for supporting the operating table, and the elastic force-applying member changes length as the support arm rotates around its first end, and the locker keeps the length of the elastic force-applying member unchanged in a locked state;

[0010] The support arm comprises a first support rod and a second support rod arranged in parallel;

[0011] The fixing member includes a first connecting member;

[0012] The first end of the first support rod is rotatably connected to the first connecting member through a first rotating pair, the first end of the second support rod is rotatably connected to the first connecting member through a second rotating pair, the second end of the first support rod is rotatably connected to the operating table through a third rotating pair, and the second end of the second support rod is rotatably connected to the operating table through a fourth rotating pair, the rotation axes of the first rotating pair and the second rotating pair are parallel, and the rotation axes of the third rotating pair and the fourth rotating pair are parallel;

[0013] One end of the lock is rotatably connected to the first support rod, and the other end of the lock is rotatably connected to the second support rod. When the self-locking function of the lock is turned on, the distance between the two ends of the lock cannot increase.

[0014] In one embodiment, the fixing member includes a column, one end of which is connected to the host, and the first connecting member is arranged on the other end of the column.

[0015] In one embodiment, the force-applying mechanism is a self-locking gas spring or an oil pressure spring, the two ends of the elastic force-applying member are connected between the column and the support arm, the elastic force-applying member includes a piston and a first guide cylinder constituting a sliding pair, and the locker is a braking mechanism for locking the relative position of the piston and the first guide cylinder. When the braking mechanism is in a released state, the piston and the first guide cylinder produce relative displacement under the action of force to change the length of the piston and the first guide cylinder nested together. When the braking mechanism is in a locked state, the relative position of the piston and the first guide cylinder is locked.

[0016] In one embodiment, the elastic force applying member includes a second guide cylinder, a guide rod and an elastic member;

[0017] One end of the elastic member elastically abuts against the second guide cylinder, and the other end of the elastic member elastically abuts against the guide rod;

[0018] One end of the second guide cylinder is provided with a receiving cavity, one end of the guide rod cooperates with and is received in the receiving cavity, and one end of the guide rod can move in the receiving cavity along the axial direction of the receiving cavity;

[0019] One of the other end of the second guide cylinder and the other end of the guide rod is rotatably connected to the column, and the other end is rotatably connected to the support arm.

[0020] In one embodiment, the first support rod and the second support rod are arranged vertically, and the elastic force-applying member passes through the second support rod and is connected between the first support rod and the column.

[0021] In one embodiment, the second support rod is provided with a through slot parallel to the second support rod, one end of the elastic force member is rotatably connected to the column, the other end of the elastic force member passes through the through slot and is rotatably connected to the first support rod, and when the second end of the support arm rotates, the elastic force member slides in the through slot.

[0022] In one embodiment, the elastic force member is a torsion spring or a coil spring, and the elastic force member is arranged on the fixing member. One end of the elastic force member elastically abuts against the fixing member, and the other end of the elastic force member elastically abuts against the support arm.

[0023] In one embodiment, one end of the elastic force applying member elastically abuts against the first connecting member; or

[0024] One end of the elastic force applying member elastically abuts against the column.

[0025] In one embodiment, a second connecting member is connected between the operating table and the second end of the support arm, the second end of the first support rod is rotatably connected to the second connecting member through a third rotating pair, the second end of the second support rod is rotatably connected to the second connecting member through a fourth rotating pair, and the second connecting member is rotatably connected to the operating table through a fifth rotating pair;

[0026] The rotation axis of the third rotational pair and the rotation axis of the fifth rotational pair are perpendicular to each other.

[0027] In one embodiment, one end of the elastic force-applying member connected to the fixing member is close to the host, and one end of the elastic force-applying member connected to the support arm is close to the fixing member.

[0028] In the above-mentioned ultrasonic equipment, the elastic force-applying member of the force-applying mechanism is arranged between the support arm and the fixing member fixed on the main unit. On the one hand, the elastic force-applying member forms a triangular support structure with the support arm and the fixing member, and on the other hand, it can also apply a force to rotate the support arm, so as to cooperate with the support arm to realize the lifting function of the operating table.

[0029] From the perspective of the structure of the support arm, a part of the components used to realize the lifting function are omitted inside the support arm, so the support arm of the above embodiment can be smaller in size than the traditional support arm.

[0030] From the perspective of supporting the work surface, the triangle support has a better effect because of its stability.

[0031] From the perspective of the ultrasonic equipment as a whole, the existing empty space between the support arm and the main unit in traditional ultrasonic equipment is fully utilized, and the space utilization rate is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of an ultrasonic device according to an embodiment;

[0033] Figure 2 A schematic structural diagram of an ultrasonic device according to another embodiment from another perspective;

[0034] Figure 3 is a schematic diagram of the exploded structure of a support assembly of an embodiment;

[0035] Figure 4 is a longitudinal cross-sectional schematic diagram of a support assembly of an embodiment;

[0036] Figure 5 is a longitudinal cross-sectional schematic diagram of a support assembly of another embodiment;

[0037] Figure 6 A longitudinal cross-sectional schematic diagram of a support assembly of yet another embodiment;

[0038] 100. Support assembly;

[0039] 10. Fixing parts;

[0040] 11. column; 12. first connecting member; 13. fixed shaft;

[0041] 20. Support arm;

[0042] 21. first support rod; 22. second support rod; 221. through slot;

[0043] 30. A second connecting member;

[0044] 40. Force applying mechanism;

[0045] 41. Elastic force-applying member;

[0046] 411, first guide cylinder; 412, piston; 413, second guide cylinder; 414, receiving chamber; 415, guide rod; 416, elastic member;

[0047] 42. Locking device;

[0048] 200, host;

[0049] 300. Work surface. DETAILED DESCRIPTION

[0050] 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 intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order 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 based on the description in the specification and the general technical knowledge in the art.

[0051] 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.

[0052] The serial numbers assigned to the components herein, 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).

[0053] In the present invention, opening the locking function refers to the conversion from unlocking to locking, and correspondingly, closing the locking function refers to the conversion from locking to unlocking.

[0054] The revolving pair referred to in the present invention refers to a structure formed by two components rotating relative to each other around a common axis. For example, a rotating shaft is provided on one component, and a through hole matching the rotating shaft is provided on the other component, and the two components form a revolving pair.

[0055] Figure 1-2In the embodiment shown, an ultrasonic device is provided, including a support assembly 100, a host 200 and an operation table 300, on which a human-machine interaction device is installed, for example, a keyboard, a mouse, a roller, a trackball and a display with a touch screen, etc., or a combination of multiple thereof. The host 200 is provided with an input and output interface connected to the human-machine interaction device, which can receive a command signal input through the human-machine interaction device through the input and output interface, and can send data information to the human-machine interaction device through the input and output interface. The connection between the input and output interface on the host 200 and the human-machine interaction device can be realized based on USB, bus protocols such as CAN, and / or wired network protocols, so there will be a certain number of wire harnesses connected between the host 200 and the human-machine interaction device. The host 200 is also used to process the ultrasonic echo signal into a visualized ultrasonic image, and output the visualized ultrasonic image to the display for display.

[0056] The support assembly 100 includes a fixing member 10 , a support arm 20 and a force applying mechanism 40 having a locking function.

[0057] The fixing member 10 includes a hollow column 11, and the bottom of the column 11 is fixedly mounted on the host 200. In other embodiments, the fixing member 10 may also be in other shapes.

[0058] The support arm 20 has a first end and a second end. The first end of the support arm 20 is rotatably connected to the fixing member 10. The operating table 300 is rotatably connected to the support arm 20. Figure 1-2 In the embodiment of the present invention, the first end of the support arm 20 faces the fixing member 10 , and the second end of the support arm 20 faces the operating table 300 .

[0059] The force-applying mechanism 40 includes an elastic force-applying member 41 and a locker 42. The two ends of the elastic force-applying member 41 are respectively connected between the fixing member 10 and the support arm 20, and the elastic force-applying member 41, the support arm 20 and the fixing member 10 form a triangular support structure for supporting the operating table 300. The length of the elastic force-applying member 41 changes as the support arm 20 rotates around its first end, and the locker 42 keeps the length of the elastic force-applying member 41 unchanged in the locked state. In the triangular support structure, the elastic force-applying member 41 plays a supporting role, and the elastic force-applying member 41 can make the support arm 20 rotate around its first end by changing the length of the two ends acting on the fixing member 10 and the support arm 20.

[0060] In some embodiments, the end of the elastic force member 41 connected to the fixed member 10 is close to the host 200, and the end of the elastic force member 41 connected to the support arm 20 is close to the fixed member 10. From the characteristics of the triangular support structure, it can be inferred that the elastic force member 41 can more easily push the support arm 20 to rotate when extended to the same length.

[0061] like Figure 3-4 In the illustrated embodiment, the force applying mechanism 40 is a self-locking gas spring, and the parts realizing the locking function are integrated inside the gas spring. For example, the elastic force applying member 41 includes a piston 412 and a first guide cylinder 411 of a sliding pair, one end of the piston 412 is rotatably connected to the column 11, and one end of the first guide cylinder 411 is rotatably connected to the support arm 20. In other embodiments, one end of the piston 412 can also be rotatably connected to the support arm 20, and one end of the first guide cylinder 411 can be rotatably connected to the column 11. The locker 42 is a brake mechanism for locking the relative position of the piston 412 and the first guide cylinder 411. When the brake mechanism is in a released state, the piston 412 and the first guide cylinder 411 produce relative displacement under the action of force to change the length of the piston 412 and the first guide cylinder 411 being nested together. When the brake mechanism is in a locked state, the relative position of the piston 412 and the first guide cylinder 411 is locked. In other embodiments, the force applying mechanism 40 may also be a self-locking oil pressure spring. Both gas springs and oil pressure springs are existing mature technologies and will not be described in detail here.

[0062] By using the gas spring, the rotation of the support arm 20 can be conveniently adjusted on the basis of reducing the volume of the support arm 20.

[0063] The self-locking gas spring or hydraulic spring has a wide range of applications and can be matched with various types of support arms. Among the various types of support arms, there is also a support arm with a relatively special structure. This type of support arm has the function of horizontally lifting the operating table 300 during rotation. The structure of this type of support arm can be referred to Figure 3-6 . In Figure 3-6In the illustrated embodiment, the fixing member 10 further includes a first connecting member 12 mounted on the top of the fixing member 10, the operating table 300 further includes a second connecting member 30 disposed at the bottom of the fixing member 10, and the supporting arm 20 includes a first supporting rod 21 and a second supporting rod 22 which are parallel or substantially parallel to each other, and the first supporting rod 21 is located vertically above the second supporting rod 22. The first end of the first supporting rod 21 is rotatably connected to the first connecting member 12 via a first rotating pair, and the first end of the second supporting rod 22 is rotatably connected to the first connecting member 12 via a second rotating pair. The second end of the first support rod 21 is rotatably connected to the second connecting member 30 through a third rotating pair, the second end of the second support rod 22 is rotatably connected to the second connecting member 30 through a fourth rotating pair, and the second connecting member 30 is rotatably connected to the bottom of the operating table 300 through a fifth rotating pair, and the rotation axes of the first rotating pair and the second rotating pair are parallel, and the rotation axes of the third rotating pair and the fourth rotating pair are parallel, so the first connecting member 12, the first support rod 21, the second connecting member 30 and the second support rod 22 form a parallel four-bar linkage structure, and the support arm 20 can rotate in a clockwise or counterclockwise direction in a vertical plane, so that the operating table 300 connected to the second connecting member 30 can be kept in a horizontal state and rise or fall. In some embodiments, the rotation axis of the third rotating pair is perpendicular to the rotation axis of the fifth rotating pair, for example Figure 3 In the embodiment shown, the rotation axis of the third rotation pair is along the horizontal direction, and the rotation axis of the fifth rotation pair ( Figure 3 The operating table 300 can rotate clockwise or counterclockwise around the second connecting member 30 in the horizontal plane ( Figure 3 The dotted arrow in the middle indicates the angle of the operation table 300 facing the user.

[0064] In some embodiments, the first support rod 21 and the second support rod 22 are both cylinders with a substantially U-shaped longitudinal cross section, and the opening of the first support rod 21 and the opening of the second support rod 22 are arranged opposite to each other, and the first support rod 21 and the second support rod 22 can be enclosed to form a substantially sealed cavity, and the wiring harness between the host 200 and the human-computer interaction device can be arranged in the cavity. The first support rod 21 and the second support rod 22 of the above structure play a good role in protecting and hiding the wiring harness.

[0065] When the support arm 20 is a parallel four-link structure, in addition to the gas spring, the utility model also provides two other embodiments, which are described in detail below.

[0066] like Figure 5In the illustrated embodiment, the support arm 20 is the above-mentioned parallel four-bar linkage structure, one end of the lock 42 is rotatably connected to the first support rod 21, and the other end of the lock 42 is rotatably connected to the second support rod 22. When the lock 42 turns on the self-locking function, the distance between the two ends of the lock 42 cannot increase, which is equivalent to the first support rod 21 "pulling" the second support rod 22 through the lock 42, so that the second support rod 22 cannot rotate around its first end, and the second support rod 22 "pulling" the second support rod 22 through the lock 42, so that the first support rod 21 cannot rotate around its first end. In this embodiment, the lock 42 can use or slightly improve the structure of the existing lock in the field. For example, the structure of the lock disclosed in the prior application with application number CN201210294550.X, the applicant being Shenzhen Mindray Bio-Medical Electronics Co., Ltd., and titled A lock and its support arm and ultrasonic imaging system can be used. Those skilled in the art can easily transform the lock 42 with one end set on the first connecting socket in the prior application into a lock 42 with one end set on the second support rod 22.

[0067] The elastic force-applying member 41 comprises a second guide cylinder 413, a guide rod 415 and an elastic member 416, one end of the elastic member 416 elastically abuts against the second guide cylinder 413, and the other end of the elastic member 416 elastically abuts against the guide rod 415; one end of the second guide cylinder 413 is provided with a receiving chamber 414, one end of the guide rod 415 cooperates with and is received in the receiving chamber 414, and can move in the receiving chamber 414 along the axial direction of the receiving chamber 414, that is, the receiving chamber 414 actually plays the role of a slide groove, one end of the guide rod 415 is equivalent to a slider, and the second guide cylinder 413 and the guide rod 415 form a retractable structure, which can be extended under the elastic force of the elastic member 416. The other end of the second guide cylinder 413 is rotatably connected to the support arm 20, and the other end of the guide rod 415 is rotatably connected to the column 11. In other embodiments, the other end of the second guide cylinder 413 may be rotatably connected to the column 11, and the other end of the guide rod 415 may be rotatably connected to the support arm 20. In this example, the elastic member 416 may be a spring such as a compression spring or a disc spring.

[0068] Compared with the solution using a gas spring, this embodiment has lower cost. In other embodiments, the elastic force applying member 41 of this embodiment may also be used, but a locker 42 of other structures may be used, so that the support arm 20 may not be limited to a four-bar linkage structure.

[0069] exist Figure 3-5In the illustrated embodiment, the elastic force member 41 can be connected between the first support rod 21 and the column 11. For example, the second support rod 22 is provided with a through slot 221 parallel to the second support rod 22. One end of the elastic force member 41 can be rotatably connected to the column 11; the other end of the elastic force member 41 passes through the through slot 221 and is rotatably connected to the first support rod 21. When the second end of the support arm 20 rotates, the elastic force member 41 slides in the through slot 221. In other words, the gas spring can pass through the through slot 221 on the second support rod 22 and be directly connected to the bottom of the first support rod 21. The other end of the second guide cylinder 413 can also pass through the through slot 221 on the second support rod 22 and be directly connected to the bottom of the first support rod 21. The advantage of such a setting is that, on the one hand, a part of the elastic force member 41 can be hidden. On the other hand, it can be known from a simple mechanical analysis that the force required to rotate the support arm 20 by the same angle and directly connect to the first support rod 21 is small.

[0070] like Figure 6 The embodiment shown is another implementation of the force-applying mechanism 40 when the support arm 20 is the above-mentioned parallel four-bar linkage structure. One end of the lock 42 is rotatably connected to the first support rod 21, and the other end of the lock 42 is rotatably connected to the second support rod 22. When the lock 42 turns on the self-locking function, the distance between the two ends of the lock 42 cannot increase, which is equivalent to the first support rod 21 "pulling" the second support rod 22 through the lock 42, so that the second support rod 22 cannot rotate around its first end, and the second support rod 22 "pulling" the second support rod 22 through the lock 42, so that the first support rod 21 cannot rotate around its first end. In this embodiment, the lock can use or slightly improve the structure of the existing lock in the field. For example, the structure of the lock disclosed in the prior application with application number CN201210294550.X, the applicant being Shenzhen Mindray Bio-Medical Electronics Co., Ltd., and titled A lock and its support arm and ultrasonic imaging system can be used. Those skilled in the art can easily transform the lock 42 with one end set on the first connecting socket in the prior application into a lock 42 with one end set on the second support rod 22.

[0071] The elastic force-applying member 41 is a torsion spring, which is arranged on the fixing member 10. For example, a fixed shaft 13 is arranged in the first connecting member 12, and the torsion spring is sleeved on the fixed shaft 13. In some embodiments, the rotation axis of the first rotating pair on the first support rod 21 is also the fixed shaft 13. One end of the torsion spring elastically abuts on the fixing member 10, for example, one end of the torsion spring elastically abuts on the inner wall of the first connecting member 12, and the other end of the torsion spring elastically abuts on the support arm 20, for example, abuts on the bottom wall of the first support rod 21. In other embodiments, the elastic force-applying member 41 may also be a coil spring or other types of springs. In some embodiments, one end of the torsion spring may also elastically abut on the column 11, and the other end elastically abuts on the support arm 20.

[0072] This embodiment uses a torsion spring as the elastic force member 41, which occupies a smaller volume and can be completely hidden in the first connecting member 12. In other embodiments, the elastic force member 41 of this embodiment can also be used, but a locker 42 of other structures is adopted, so that the support arm 20 is not limited to a four-bar structure.

[0073] The support arm in the above-mentioned ultrasonic equipment can be smaller in size than the traditional support arm, and the effect of supporting the operating table is also better. At the same time, the space utilization rate of each free space of the ultrasonic equipment is better.

[0074] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. An ultrasonic device, characterized in that include: Worktop; Host; A support assembly, including a fixing member, a support arm and a force applying mechanism with a locking function; The fixing member is arranged on the host; The support arm has a first end and a second end, the first end of the support arm is rotatably connected to the fixing member, and the operating table is rotatably connected to the second end of the support arm; The force-applying mechanism comprises an elastic force-applying member and a locker, wherein two ends of the elastic force-applying member are respectively connected to the fixing member and the support arm, and the elastic force-applying member, together with the support arm and the fixing member, form a triangular support structure for supporting the operating table, and the elastic force-applying member changes length as the support arm rotates around its first end, and the locker keeps the length of the elastic force-applying member unchanged in a locked state; The support arm comprises a first support rod and a second support rod arranged in parallel; The fixing member includes a first connecting member; The first end of the first support rod is rotatably connected to the first connecting member through a first rotating pair, the first end of the second support rod is rotatably connected to the first connecting member through a second rotating pair, the second end of the first support rod is rotatably connected to the operating table through a third rotating pair, and the second end of the second support rod is rotatably connected to the operating table through a fourth rotating pair, the rotation axes of the first rotating pair and the second rotating pair are parallel, and the rotation axes of the third rotating pair and the fourth rotating pair are parallel; One end of the lock is rotatably connected to the first support rod, and the other end of the lock is rotatably connected to the second support rod. When the self-locking function of the lock is turned on, the distance between the two ends of the lock cannot increase.

2. The ultrasonic device according to claim 1, characterized in that The fixing member comprises a column, one end of which is connected to the host, and the first connecting member is arranged on the other end of the column.

3. The ultrasonic device according to claim 2, characterized in that The force-applying mechanism is a self-locking gas spring or an oil pressure spring, the two ends of the elastic force-applying member are connected between the column and the support arm, the elastic force-applying member includes a piston and a first guide cylinder constituting a sliding pair, the locker is a braking mechanism for locking the relative position of the piston and the first guide cylinder, when the braking mechanism is in a released state, the piston and the first guide cylinder produce relative displacement under the action of force to change the length of the piston and the first guide cylinder nested together, when the braking mechanism is in a locked state, the relative position of the piston and the first guide cylinder is locked.

4. The ultrasonic device according to claim 2, characterized in that The elastic force applying member comprises a second guide cylinder, a guide rod and an elastic member; One end of the elastic member elastically abuts against the second guide cylinder, and the other end of the elastic member elastically abuts against the guide rod; One end of the second guide cylinder is provided with a receiving cavity, one end of the guide rod cooperates with and is received in the receiving cavity, and one end of the guide rod can move in the receiving cavity along the axial direction of the receiving cavity; One of the other end of the second guide cylinder and the other end of the guide rod is rotatably connected to the column, and the other end is rotatably connected to the support arm.

5. The ultrasonic device according to claim 3 or 4, characterized in that: The first support rod and the second support rod are arranged vertically, and the elastic force-applying member passes through the second support rod and is connected between the first support rod and the column.

6. The ultrasonic device according to claim 5, characterized in that The second support rod is provided with a through slot parallel to the second support rod, one end of the elastic force member is rotatably connected to the column, the other end of the elastic force member passes through the through slot and is rotatably connected to the first support rod, when the second end of the support arm rotates, the elastic force member slides in the through slot.

7. The ultrasonic device according to claim 2, characterized in that The elastic force applying member is a torsion spring or a coil spring, and is arranged on the fixing member. One end of the elastic force applying member elastically abuts against the fixing member, and the other end of the elastic force applying member elastically abuts against the support arm.

8. The ultrasonic device according to claim 7, characterized in that One end of the elastic force applying member elastically abuts against the first connecting member; or One end of the elastic force applying member elastically abuts against the column.

9. The ultrasonic device according to claim 2, characterized in that A second connecting member is connected between the operating table and the second end of the support arm, the second end of the first support rod is rotatably connected to the second connecting member through a third rotating pair, the second end of the second support rod is rotatably connected to the second connecting member through a fourth rotating pair, and the second connecting member is rotatably connected to the operating table through a fifth rotating pair; The rotation axis of the third rotational pair and the rotation axis of the fifth rotational pair are perpendicular to each other.

10. The ultrasonic device according to claim 1, characterized in that One end of the elastic force applying member connected to the fixing member is close to the host, and one end of the elastic force applying member connected to the support arm is close to the fixing member.

Images