Parking device for surgical cart

Abstract

The utility model discloses a parking device for a surgical trolley. The parking device comprises a trolley support and a parking device, the moving mechanism is installed on the trolley support and comprises a plurality of moving assemblies arranged in the circumferential direction of the trolley support at intervals, and each moving assembly comprises a trundle and a driving part driving the trundle to move up and down; the displacement monitoring mechanism is used for monitoring whether the lifting distances of the moving assemblies are consistent or not and comprises a plurality of displacement sensors and a control unit, the displacement sensors correspond to the moving assemblies, the displacement sensors and the driving component are in signal connection with the control unit, and when the lifting distances of the moving assemblies are inconsistent, the displacement sensors are in signal connection with the control unit. And the control unit sends an instruction for stopping working to the driving component. According to the parking device for the surgical cart, the stability of the surgical cart can be improved, and toppling in the lifting process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a parking device for an operating trolley. Background Art

[0002] In recent years, with the initiative of precision medicine, minimally invasive surgeries have become more and more common. Among them, using surgical robots for minimally invasive surgeries, orthopedic surgeries, interventional surgeries, etc. is becoming an important means for doctors, which brings less bleeding, less intraoperative injury, and shorter postoperative recovery to patients.

[0003] With the continuous development of precision medicine, as an important auxiliary means for doctors, medical surgical robots require more precise positioning and puncture during surgeries. Therefore, strict precision requirements are imposed on the operation of surgical robots. And as the support structure of surgical robots, medical trolleys have higher requirements for reliability and stability. At the same time, medical robots generally need to be transported back and forth between different imaging rooms (such as CT, MRI, and even ultrasound) or storage rooms, so better walking passability is also required. Therefore, a trolley with ergonomics and higher reliability is needed to provide stable and reliable parking during the transportation and surgery of medical robots.

[0004] Chinese Patent CN219110039U discloses a braking structure for a medical trolley, which is characterized in that multiple groups of electric push rods are arranged on the trolley base. The electric push rods are connected to a guiding structure and a lifting platform, and the lifting platform is connected with casters and a structure for braking the casters. When the electric push rods extend, the lifting platform descends, the casters touch the ground, and the caster brakes are opened, and the trolley moves; when the electric push rods contract, the lifting platform rises, the casters leave the ground, and the fixed feet touch the ground to achieve parking. Its parking structure is relatively complex and costly. At the same time, the casters may have an out-of-tolerance electric push rod stroke when crossing thresholds or the like during walking, resulting in inconsistent heights when the casters are retracted and then touch the ground, leading to the tilt of the trolley, and even the trolley may tip over, which is quite dangerous. At the same time, when parking, the contact area between the three fixed feet and the ground is limited. If it is used in the field of surgical robots, during the surgery process, the moment of inertia brought by the movement of the robotic arm requires a very high stability for the parking of the trolley, and it is necessary to ensure that the trolley does not move at all during the surgery process. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a parking device for an operating trolley, which can prevent the trolley from tilting during walking or tipping during lifting, and improve safety.

[0006] Based on the above problems, the technical solution provided by the utility model is as follows:

[0007] A parking device for an operating trolley, comprising:

[0008] A trolley support;

[0009] A moving mechanism, which is installed on the trolley support and includes a plurality of moving components arranged at intervals in the circumferential direction of the trolley support. The moving components include casters and driving components for driving the casters to move up and down.

[0010] A displacement monitoring mechanism for monitoring whether the lifting distances of the plurality of moving components are consistent, including a plurality of displacement sensors and a control unit corresponding to the plurality of moving components. The plurality of displacement sensors and driving components are respectively connected to the control unit in a signal connection. When the lifting distances of the plurality of moving components are inconsistent, the control unit issues an instruction to stop working to the driving components.

[0011] In some embodiments, a control switch is further included, and the control switch is connected to the control unit in a signal connection.

[0012] In some embodiments, the trolley support includes a trolley frame and a base provided at the lower end of the trolley frame, and the moving mechanism is installed on the trolley frame.

[0013] In some embodiments, a fixing plate is provided on the trolley frame, and the control unit is installed on the fixing plate.

[0014] In some embodiments, the base includes a bottom plate and a plurality of columns connecting the bottom plate and the trolley frame.

[0015] In some embodiments, the moving component further includes a first fixed seat provided at the upper part of the trolley frame, a second fixed seat provided at the lower part of the trolley frame, and a guide rod connecting the driving component and the caster. The main body part of the driving component is rotationally pinned to the first fixed seat, and the power output part is rotationally pinned to the guide rod. The guide rod passes through the second fixed seat and is connected to the caster.

[0016] In some embodiments, a linear bearing for the guide rod to pass through is provided on the second fixed seat.

[0017] In some embodiments, the main body part of the driving component is rotationally pinned to the first fixed seat through a first pin shaft, and the power output part of the driving component is rotationally pinned to the guide rod through a second pin shaft.

[0018] In some embodiments, mounting plates corresponding to each displacement sensor are provided on the trolley frame, the displacement sensors are installed on the mounting plates, and the detection ends of the displacement sensors are connected to the second pin shaft.

[0019] In some of these embodiments, the end of the second pin shaft is provided with a connecting portion that cooperates with the displacement sensor, and the mounting plate is provided with a through slot for the connecting portion to pass through.

[0020] Compared with the prior art, the advantages of the present utility model are as follows:

[0021] 1. A displacement monitoring mechanism is provided to monitor whether the lifting distances of multiple moving components are consistent. During the lifting process of the casters, if the displacements monitored by the displacement sensor are inconsistent, the control unit will send an instruction to the driving component to stop working, preventing the trolley from tipping over during the lifting process and ensuring the trolley remains stable during walking, thereby improving safety performance.

[0022] 2. The base includes a bottom plate and multiple struts connecting the bottom plate to the trolley frame. When the trolley is parked, the trolley is supported on the ground through the bottom plate, ensuring the stability of the trolley, preventing the trolley from displacing during the operation, and improving the accuracy and safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. The drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 One of the structural schematic diagrams of the embodiment of the parking device for the surgical trolley of the present utility model

[0025] Figure 2 The second structural schematic diagram of the embodiment of the present utility model

[0026] Figure 3 The structural schematic diagram of the moving component in the embodiment of the present utility model;

[0027] Wherein:

[0028] 1. Trolley support; 1-1. Trolley frame; 1-2. Base; 1-2a. Bottom plate; 1-2b. Strut; 1-3. Mounting plate; 1-3a. Through slot; 1-4. Fixed plate;

[0029] 2. Moving component; 2-1. Driving component; 2-2. Caster; 2-3. First fixed seat; 2-4. Second fixed seat; 2-5. Guide rod; 2-6. Linear bearing; 2-7. First pin shaft; 2-8. Second pin shaft;

[0030] 3. Displacement sensor;

[0031] 4. Control unit;

[0032] 5. Control switch. Detailed implementation mode

[0033] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present utility model and not for limiting the scope of the present utility model. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0034] As Figure 1 and Figure 2 shown, it is a schematic structural diagram of an embodiment of the present utility model, providing a parking device for a surgical trolley, including a trolley support 1, a moving mechanism and a displacement monitoring mechanism.

[0035] The trolley support 1 is a bracket for a medical surgical robot, including a trolley frame 1-1 and a base 1-2 provided at the lower end of the trolley frame 1-1. The base includes a bottom plate 1-2a and a plurality of struts 1-2b connecting the bottom plate 1-2a and the trolley frame 1-1. When the surgical trolley is parked, it contacts the ground through the bottom plate 1-2a, which can ensure the stability of the surgical trolley and prevent it from displacing.

[0036] The moving mechanism is installed on the trolley frame 1-1 and includes a plurality of moving components 2. As Figure 3 shown, each moving component 2 includes a caster 2-2 and a driving component 2-1 for driving the caster 2-2 to move up and down. Preferably, the driving component 2-1 can adopt an electric cylinder. In this example, the moving mechanism includes four moving components 2 arranged symmetrically, which are respectively arranged at the four top corners of the trolley frame 1-1. It should be understood that in other implementation modes, other numbers of moving components 2 can be set according to needs, and the present utility model will not be elaborated further.

[0037] For the convenience of installing the moving mechanism, the moving component 2 further includes a first fixing seat 2-3 provided at the upper part of the trolley frame 1-1, a second fixing seat 2-4 provided at the lower part of the trolley frame 1-1, and a guide rod 2-5 connecting the driving component 2-1 and the caster 2-2. The main body part of the driving component 2-1 is rotatably pin-connected to the first fixing seat 2-3, and the power output part is rotatably pin-connected to the guide rod 2-5. The guide rod 2-5 passes through the second fixing seat 2-4 and is connected to the caster 2-2. Among them, the upper part of the guide rod 2-5 is provided with a hinge seat and the lower part is provided with a threaded part. The power output part of the driving component 2-1 is rotatably connected to the hinge seat, and the threaded part is threadedly connected to the caster 2-2.

[0038] Specifically, the main body part of the driving component 2-1 is rotatably pin-connected to the first fixing seat 2-3 through a first pin shaft 2-7, and the power output part of the driving component 2-1 is rotatably pin-connected to the hinge seat of the guide rod 2-5 through a second pin shaft 2-8.

[0039] To further optimize the implementation effect of the present utility model, a linear bearing 2-6 through which a guide rod 2-5 passes is provided on the second fixed seat 2-4.

[0040] A displacement monitoring mechanism for monitoring whether the lifting distances of a plurality of moving components 2 are consistent, including a plurality of displacement sensors 3 corresponding to the plurality of moving components 2 and a control unit 4. The plurality of displacement sensors 3 and the plurality of driving components 2-1 are respectively connected to the control unit 4 in a signal manner. The plurality of displacement sensors 3 transmit the lifting distance signals of the plurality of moving components 2 to the control unit 3. The control unit 3 determines whether the lifting distances of the plurality of moving components 2 are consistent. If not, an instruction to stop working is sent to the driving component 2-1.

[0041] To facilitate sending a working instruction to the driving component 2-1, a control switch 5 is further provided. The control switch 5 is connected to the control unit 4 in a signal manner. The lifting instruction is sent through the control switch 5, and then the control unit 4 sends a working instruction to the driving component 2-1.

[0042] To facilitate the installation of the control unit 4, a fixing plate 1-4 is provided on the trolley frame 1-1. The control unit 4 is installed on the fixing plate 1-4. The fixing plate 1-4 is fixed to the trolley frame 1-1 and extends in the vertical direction.

[0043] To facilitate the installation of the displacement sensor 3, a mounting plate 1-3 corresponding to each displacement sensor 3 is provided on the trolley frame 1-1. The upper end of the mounting plate 1-3 is bent to form a mounting portion extending in the horizontal direction. The displacement sensor 3 is installed on the mounting portion. The detection end of the displacement sensor 3 is connected to the second pin 2-8. The telescopic distance of the power output portion of the driving component 2-1 is monitored by the displacement sensor 3 to monitor the lifting distance of the caster 2-2.

[0044] To facilitate the connection between the displacement sensor 3 and the second pin 2-8, a connection portion cooperating with the displacement sensor is provided at the end of the second pin 2-8, and a through groove 1-3a through which the connection portion passes is provided on the mounting plate 1-3.

[0045] The working principle of the present utility model is as follows:

[0046] Before the operation, the operation trolley needs to be parked. The staff sends an ascending signal through the control switch 5. The control unit 4 sends an ascending instruction to the driving component 2-1. Each driving component 2-1 drives the corresponding caster 2-2 to ascend. The displacement sensor 3 monitors the ascending distance of the corresponding caster 2-2. If the ascending displacement difference of the plurality of casters 2-2 is large, the control unit 4 sends an instruction to the driving component 2-1 to stop working, and the parking is stopped;

[0047] After the operation is completed, the casters 2-2 need to be lowered for driving. The staff sends a lowering signal through the control switch 5, and the control unit 4 sends a lowering instruction to the driving component 2-1. Each driving component 2-1 drives the corresponding caster 2-2 to lower. The displacement sensor 3 monitors the lowering distance of the corresponding caster 2-2. If the lowering displacement difference of multiple casters 2-2 is large, the control unit 4 sends an instruction to the driving component 2-1 to stop working.

[0048] In summary, the parking device can ensure the stability of the operating table during parking, avoid tipping over during the lifting process, and improve the safety performance.

[0049] The above examples are only for explaining the technical concept and characteristics of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A parking device for an operating table, characterized in that, Comprising: Trolley support; A moving mechanism, which is installed on the trolley support and includes a plurality of moving components arranged at intervals along the circumferential direction of the trolley support. The moving components include casters and driving components for driving the casters to move up and down; A displacement monitoring mechanism for monitoring whether the lifting distances of the plurality of moving components are consistent, including a plurality of displacement sensors and a control unit corresponding to the plurality of moving components. The plurality of displacement sensors and driving components are respectively signal-connected to the control unit. When the lifting distances of the plurality of moving components are inconsistent, the control unit issues an instruction to stop working to the driving components.

2. The parking device for an operating table according to claim 1, characterized in that: It further includes a control switch, and the control switch is signal-connected to the control unit.

3. The parking device for an operating table according to claim 1, characterized in that: The trolley support includes a trolley frame and a base provided at the lower end of the trolley frame, and the moving mechanism is installed on the trolley frame.

4. The parking device for an operating table according to claim 3, characterized in that: A fixing plate is provided on the trolley frame, and the control unit is installed on the fixing plate.

5. The parking device for an operating table according to claim 3, characterized in that: The base includes a bottom plate and a plurality of struts connecting the bottom plate and the trolley frame.

6. The parking device for the operating table according to claim 3, characterized in that: The moving component further includes a first fixing seat provided at the upper part of the trolley frame, a second fixing seat provided at the lower part of the trolley frame, and a guide rod connecting the driving component and the caster. The main body part of the driving component is rotatably pin-connected to the first fixing seat, and the power output part is rotatably pin-connected to the guide rod. The guide rod passes through the second fixing seat and is connected to the caster.

7. The parking device for an operating table according to claim 6, characterized in that: A linear bearing for the guide rod to pass through is provided on the second fixing seat.

8. The parking device for an operating table according to claim 6, characterized in that: The main body part of the driving component is rotatably pin-connected to the first fixing seat through a first pin shaft, and the power output part of the driving component is rotatably pin-connected to the guide rod through a second pin shaft.

9. The parking device for an operating table according to claim 8, wherein: Mounting plates corresponding to each displacement sensor are provided on the trolley frame, and the displacement sensors are installed on the mounting plates. The detection end of the displacement sensor is connected to the second pin shaft.

10. The parking device for an operating table according to claim 9, characterized in that: A connecting part for cooperating with the displacement sensor is provided at the end of the second pin shaft, and a through groove for the connecting part to pass through is provided on the mounting plate.

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