Operating bed

Abstract

An operating bed comprises: a table top; the stand column is used for supporting the table top; the stand column driving device is used for driving the stand column to perform lifting action so as to adjust the height of the table board; the base is arranged at the bottom of the stand column; the stand columns are sleeved with the at least two stand column protective covers, and the cross sectional areas of the at least two stand column protective covers are sequentially reduced from top to bottom; a distance sensor is arranged on at least one stand column protective cover and used for measuring the distance in the lifting direction of the stand column. The controller is connected with the stand column driving device and the distance sensor and used for controlling the stand column driving device to drive the stand column to execute the lifting action and recognizing obstacles around the stand column protective cover according to the distance measuring result of the distance sensor. The operating bed can prevent the stand column shield from being damaged due to shielding of obstacles in the descending process of the table top.

Description

Technical Field

[0001] The present invention relates to the medical field, and more particularly to an operating table. Background Art

[0002] The column shield (also known as the column sleeve, etc.) belongs to the main appearance component of the operating table. It can stretch with the lifting of the column and provide protection and shielding for the column. During the operation, many hospitals often place accessories (modular components that cooperate with the operating table to achieve corresponding operating postures) or other items on the base. And since the sterile sheet needs to completely cover the operating table to create a sterile environment, it is impossible to observe whether there are items placed on the base. Therefore, when the column is lifted or lowered during the operation, the column shield often squeezes against these obstacles, resulting in serious deformation or detachment of the column shield. Summary of the Invention

[0003] The present invention provides an operating table to prevent the column shield from squeezing against obstacles. Embodiments of the present invention provide an operating table, including:

[0004] A tabletop;

[0005] A column for supporting the tabletop;

[0006] A column driving device, which is used to drive the column to perform lifting actions to adjust the height of the tabletop;

[0007] A base, provided at the bottom of the column;

[0008] At least two column shields, sleeved outside the column, and the cross-sectional areas of the at least two column shields decrease sequentially from top to bottom. The column shield at least includes a top-layer column shield adjacent to the tabletop and a bottom-layer column shield adjacent to the base; at least one of the column shields is provided with a distance sensor, and the distance sensor is used to measure the distance along the lifting direction of the column;

[0009] A controller, connected to the column driving device and the distance sensor, for controlling the column driving device to drive the column to perform the lifting action, and for identifying obstacles around the column shield according to the ranging result of the distance sensor.

[0010] In one embodiment, the distance sensor includes at least one first distance sensor for measuring the distance downward to obtain a first ranging result;

[0011] The identifying the obstacles around the column shield according to the ranging result of the distance sensor includes: identifying the obstacles around the column shield according to the first ranging result.

[0012] In one embodiment, the first distance sensor is disposed on the top column shield.

[0013] In one embodiment, identifying an obstacle around the column shield according to the first distance measurement result includes at least one of the following:

[0014] When the column does not perform a lifting action, if the first distance measurement result decreases, it is determined that there is an obstacle around the column shield;

[0015] During the process of the column performing a descending action, if the decreasing rate of the first distance measurement result is greater than a preset rate, it is determined that there is an obstacle around the column shield;

[0016] During the process of the column performing a descending action, if the first distance measurement result does not decrease to a first preset threshold and then stops decreasing, it is determined that there is an obstacle around the column shield;

[0017] During the process of the column performing a descending action, if the first distance measurement result fluctuates outside a preset range, it is determined that there is an obstacle around the column shield.

[0018] In one embodiment, the number of the first distance sensors is multiple, and identifying an obstacle around the column shield according to the first distance measurement result includes:

[0019] If the first distance measurement result obtained by at least one of the first distance sensors is less than the first distance measurement results obtained by other first distance sensors, it is determined that there is an obstacle around the column shield.

[0020] In one embodiment, the distance sensor includes at least one second distance sensor for performing distance measurement upward to obtain a second distance measurement result;

[0021] Identifying an obstacle around the column shield according to the distance measurement result of the distance sensor includes: identifying an obstacle around the column shield according to the second distance measurement result.

[0022] In one embodiment, the second distance sensor is disposed on the bottom column shield.

[0023] In one embodiment, the column shield further includes at least one intermediate layer column shield disposed between the top column shield and the bottom column shield;

[0024] At least one of the intermediate layer column shields is provided with a shielding member above the second distance sensor, and the second distance measurement result represents the distance between the second distance sensor and the shielding member.

[0025] In one embodiment, the shielding member is disposed at least inside the intermediate layer column shield of the uppermost layer.

[0026] In one embodiment, identifying the obstacles around the column shield according to the second ranging result includes:

[0027] During the process of the column performing a descending action, if the second ranging result does not decrease to a second preset threshold and no longer decreases, it is determined that there are obstacles around the column shield.

[0028] In one embodiment, the distance sensor further includes at least one first distance sensor for ranging downward to obtain a first ranging result;

[0029] Identifying the obstacles around the column shield according to the ranging result of the distance sensor includes:

[0030] During the process of the column performing a descending action, if the first ranging result continuously decreases and the second ranging result does not decrease to a second preset threshold and no longer decreases, it is determined that there are obstacles around the column shield.

[0031] In one embodiment, the number of the second distance sensors is multiple, and identifying the obstacles around the column shield according to the second ranging result includes:

[0032] If the second ranging results measured by different second distance sensors are different, it is determined that there are obstacles around the column shield.

[0033] In one embodiment, the controller is further configured to control the column driving device to stop driving the column to perform a descending action when the obstacle is identified, and generate a prompt message about the obstacle.

[0034] The operating bed according to the embodiment of the present invention is provided with a distance sensor on the column shield, and identifies the obstacles around the column shield according to the ranging result of the distance sensor, which can avoid damaging the column shield due to obstacle occlusion during the descent of the tabletop.

[0035] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description section. The Summary of the Invention section of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other objects, features, and advantages of the present invention will become more apparent by describing the embodiments of the present invention in more detail with reference to the accompanying drawings. The drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0037] Figure 1 Schematic diagram showing an obstacle preventing the column shield from descending;

[0038] Figure 2A Schematic structural diagram of an operating table according to an embodiment of the present invention;

[0039] Figure 2B Schematic structural diagram of an operating table according to another embodiment of the present invention. Detailed implementation manners

[0040] In order to make the objects, technical solutions, and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention. It should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative efforts should fall within the protection scope of the present invention.

[0041] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0042] It should be understood that the present invention can be implemented in different forms and should not be construed as limited to the embodiments presented here. On the contrary, providing these embodiments will make the disclosure thorough and complete and will fully convey the scope of the present invention to those skilled in the art.

[0043] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present invention. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. As used herein, the term "and / or" includes any and all combinations of the related listed items.

[0044] As Figure 1 shown, when the lifting column is lifted or lowered during the operation, the column shield 110 often squeezes against the obstacles 120 placed around the column, resulting in serious deformation or detachment of the column shield 110. For this reason, an embodiment of the present invention provides an operating table to prevent obstacles from hindering the descent of the column shield.

[0045] To fully understand the present invention, detailed structures will be presented in the following description to illustrate the technical solutions proposed by the present invention. The optional embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other embodiments.

[0046] Next, reference will be made to Figure 2A and Figure 2B to describe an operating table according to an embodiment of the present invention. As Figure 2A , Figure 2B shown, the operating table according to the embodiment of the present invention includes: a tabletop 210; columns supporting the tabletop 210; a column driving device for driving the columns to perform lifting actions to adjust the height of the tabletop; a base 220 provided at the bottom of the columns; at least two column shields 230 sleeved outside the columns, and the cross-sectional areas of at least two column shields 230 decrease sequentially from top to bottom. The column shield at least includes a top-layer column shield adjacent to the tabletop 210 and a bottom-layer column shield adjacent to the base 220; a distance sensor 240 is provided on at least one column shield 230, and the distance sensor 240 is used to measure the distance along the lifting direction of the column; a controller is connected to the columns and the distance sensor, and is used to control the column driving device to drive the columns to perform lifting actions, and to identify obstacles around the column shield 230 according to the ranging result of the distance sensor 240.

[0047] By providing a distance sensor on the column shield 230 of the operating table according to the embodiment of the present invention and identifying obstacles around the column shield 230 according to the ranging result of the distance sensor, it is possible to avoid damaging the column shield 230 due to obstacle occlusion during the descent of the tabletop 210.

[0048] Specifically, the tabletop 210 is a component for supporting the patient's body during the operation. The tabletop 210 can be composed of multiple support plates that respectively support different body parts of the patient. Exemplarily, the tabletop includes a backboard, a seat board, and a leg board. The leg board and the backboard are located at opposite ends of the seat board, and the seat board is supported above the column. In some embodiments, the tabletop 210 may further include a lumbar bridge board, which is disposed between the seat board and the backboard.

[0049] A column is provided below the tabletop 210, and the column is used to drive the tabletop 210 to lift and lower. The column can be directly connected to the tabletop 210 or indirectly connected to the tabletop 210 through structures such as an axle bracket, and no limitation is made here. When the column lifts and lowers, it drives the tabletop 210 to lift and lower synchronously to adjust the height of the tabletop. Exemplarily, the column includes a fixed column and a lifting column, and the column driving device includes a lifting oil cylinder. The bottom end of the fixed column is fixedly connected to the base 220, and the lifting oil cylinder drives the lifting column to move up and down relative to the fixed column.

[0050] A column shield 230 is sleeved outside the column, which plays a protective role for the column and is also convenient for shielding electrical components, wires, etc. During the lifting and lowering process of the column, the column shield 230 will also follow and expand and contract to adapt to the height change of the column.

[0051] Exemplarily, as Figure 2A shown, the column shield at least includes a top-layer column shield 2301 adjacent to the tabletop 210. Exemplarily, the top-layer column shield 2301 is fixedly connected to the tabletop 210, that is, during the process of the column driving the tabletop 210 to lift and lower, there is no relative movement between the top-layer column shield 2301 and the tabletop 210. The top-layer column shield 2301 is the outermost column shield, and when the column is at any height, the top-layer column shield 2301 is always exposed outside.

[0052] Further, the column shield 230 includes a bottom-layer column shield 2302 adjacent to the base. Relative movement can occur between the bottom-layer column shield 2302 and the top-layer column shield 2301. Exemplarily, the bottom-layer column shield 2302 is fixedly connected to the base 220, that is, during the process of the column driving the tabletop 210 to lift and lower, there is no relative movement between the bottom-layer column shield 2302 and the base 220. The bottom-layer column shield 2302 is the innermost column shield, and when the column descends to the limit position, at least a part of the bottom-layer column shield 2302 is received in the top-layer column shield 2302.

[0053] In some embodiments, the column shield 230 further includes at least one intermediate layer column shield 2303 disposed between the top layer column shield 2301 and the bottom layer column shield 2302. Relative movement can occur between the intermediate layer column shield 2303 and the top layer column shield 2301 and the bottom layer column shield 2302. The bottom layer column shield 2302 and each intermediate layer column shield 2302 can be nested in sequence and received within the top layer column shield 2301.

[0054] When the column rises to the highest position, the tabletop 210 is at the highest height, the column shield 230 extends to the longest, and the top layer column shield 2301, the bottom layer column shield 2302, and the intermediate layer column shield 2303 are all exposed to the external view. When the column descends to the lowest position, the tabletop 210 is at the lowest height, the column shield 230 shrinks to the shortest, and the bottom layer column shield 2302 and the intermediate layer column shield 2303 are nested in sequence and received within the top layer column shield 2301. At this time, basically only the top layer column shield 2301 is exposed outside.

[0055] Since the widths of the column shields 230 of each layer gradually decrease from top to bottom, if there is an obstacle placed near the bottom layer column shield 2302, during the process of the column driving the tabletop 210 to descend, the obstacle will block the top layer column shield 2301 or the intermediate layer column shield 2303 that descends accordingly. If the tabletop is continuously driven to descend, the obstacle will cause damage or detachment of the column shield. For this reason, in the embodiments of the present invention, a distance sensor 240 is provided on at least one column shield. The ranging direction of the distance sensor 240 is along the lifting direction of the column. The controller determines whether there is an obstacle around the column shield 230 according to the ranging result of the distance sensor 240. When an obstacle is recognized around the column shield 230, the controller controls the column driving device to stop driving the column to perform the descending action, timely avoiding damage to the column shield 230; and generates a prompt message about the obstacle to prompt the user to remove the obstacle. The prompt message includes voice prompts, display prompts, etc.

[0056] Exemplarily, the distance sensor 240 includes an ultrasonic distance sensor, an infrared distance sensor, a laser distance sensor, etc. Among them, the ultrasonic distance sensor can obtain the ranging result by sending and receiving ultrasonic waves and using the time difference between transmission and reception and the propagation speed of ultrasonic waves in the air. The laser distance sensor emits a laser pulse by a laser diode. After the laser pulse is reflected by an obstacle, part of the reflected light returns to the receiver. According to the time difference from when the light pulse is emitted to when it is received, the ranging result is obtained. The infrared distance sensor detects the distance of the obstacle by using the principle that the intensity of the infrared signal reflected by the obstacle is different at different distances. The distance sensor 240 is communicatively connected to the controller by a wired or wireless method and sends the ranging result to the controller. Exemplarily, the controller can be disposed in the column.

[0057] In one embodiment, the distance sensor 240 includes at least one first distance sensor 2401 for performing ranging downward to obtain a first ranging result, that is, the first distance sensor 2401 is used for performing ranging in the direction of the tabletop 210 descending. The first ranging result is the distance between the first distance sensor 2401 and the base 220 or the distance between the first distance sensor 2401 and an obstacle. Therefore, the controller can identify obstacles around the column guard according to the first ranging result.

[0058] As Figure 2A shown, for the convenience of wiring, the first distance sensor 2401 can be disposed on the top-layer column guard 2301, and its position includes but is not limited to the bottom of the top-layer column guard 2301. The first distance sensor 2401 disposed on the top-layer column guard 2301 can be used to determine whether there is an obstacle below the top-layer column guard 2301, so as to avoid the obstacle from hindering the descent of the top-layer column guard 2301. Optionally, the first distance sensor 2401 can also be disposed on the middle-layer column guard 2303, for example, at the bottom of the middle-layer column guard 2303, so as to be used to determine whether there is an obstacle below the middle-layer column guard 2303, and avoid the obstacle from hindering the descent of the middle-layer column guard 2303. Exemplarily, a plurality of first distance sensors 2401 can be disposed around the top-layer column guard 2301 or the middle-layer column guard 2303 for one week to identify obstacles in all directions around the column guard 230.

[0059] Exemplarily, the logic for identifying an obstacle according to the first ranging result may include: when the column does not perform a lifting or lowering action, if the first ranging result decreases, it is determined that there is an obstacle around the column guard. As Figure 2A shown, when the column does not perform a lifting or lowering action, the first ranging result should remain unchanged at H1 (that is, the distance between the bottom of the top-layer column guard 2301 and the base 220). At this time, if the first ranging result is less than H1, it means that the first ranging result is the distance between the first distance sensor 2401 and an obstacle. Therefore, it can be determined that there is an obstacle around the column guard.

[0060] Exemplarily, during the process of the column performing a lowering action, if the decreasing rate of the first ranging result is greater than a preset rate, it can also be determined that there is an obstacle around the column guard 230. During the process of the column performing a lowering action, under normal conditions, the first ranging result decreases synchronously at the rate of the column descending. At this time, if the first ranging result decreases in a sudden manner, it can also be considered that an obstacle appears around the column guard 230 during the process of the column performing a lowering action.

[0061] Exemplarily, during the process of the column performing a descending action, if the first ranging result does not decrease to the first preset threshold and no longer decreases, it is determined that there is an obstacle around the column shield 230. Specifically, if the column performs a descending action, the first distance sensor 2401 provided on the top-layer column shield 2301 or the middle-layer column shield 2303 should descend synchronously until the top-layer column shield 2301 or the middle-layer column shield 2303 descends to the bottom. At this time, the first ranging result decreases to the first preset threshold (for example, decreases to 0); if the top-layer column shield 2301 or the middle-layer column shield 2303 is blocked by an obstacle and cannot descend normally, the first distance sensor 2401 will also be unable to descend, and at this time, the first ranging result basically remains unchanged. Therefore, when the first ranging result fails to decrease to the first preset threshold normally, it can be determined that there is an obstacle around the column shield 230 and the column shield 230 has been blocked.

[0062] Exemplarily, when the middle-layer column shield 2303 is blocked by an obstacle, it will shake, causing the first distance sensor 2401 to shake accordingly, and further causing the first ranging result to have a distance fluctuation. Therefore, when the fluctuation amplitude of the first ranging result exceeds the preset range, it can also be determined that there is an obstacle around the column shield 230.

[0063] In addition, when there are multiple first distance sensors 2401 provided on the top-layer column shield 2301 or the middle-layer column shield 2303, if the top-layer column shield 2301 or the middle-layer column shield 2303 does not tilt, the first ranging results obtained by the multiple first distance sensors 2401 are the same. Therefore, if the first ranging result obtained by at least one first distance sensor 2401 provided on the same column shield is less than the first ranging results obtained by other first distance sensors 2401, it is determined that there is an obstacle around the column shield 230, and the obstacle is located below the first distance sensor 2401 that obtains the smaller first ranging result.

[0064] See Figure 2B , in some embodiments, the distance sensor includes at least one second distance sensor 2402. The second distance sensor 2402 is used to perform ranging upward to obtain a second ranging result, that is, the second distance sensor 2402 is used to perform ranging in the direction of the tabletop 210 rising. The second ranging result is the distance between the second distance sensor 2402 and the obstacle above it. The controller can identify the obstacle around the column shield 230 solely based on the second ranging result, or can also identify the obstacle around the column shield 230 by combining the first ranging result and the second ranging result.

[0065] Among them, for the convenience of wiring, the second distance sensor 2402 can be arranged on the relatively fixed bottom column shield 2302, and specifically can be arranged at the top of the bottom column shield 2302. The second distance sensor 2402 can measure the distance between the bottom column shield 2302 and the top column shield 2301 or the middle layer column shield 2303. Since the bottom column shield 2302 is relatively fixed to the base 220, the second ranging result can reflect whether the top column shield 2301 or the middle layer column shield 2303 descends normally as the column descends.

[0066] As Figure 2B shown, since the width of the middle layer column shield 2303 is greater than the width of the bottom column shield 2302, therefore, a shielding component 250 can be arranged inside at least one middle layer column shield 2303, and the shielding component 250 is located above the second distance sensor 2402 and can reflect the ranging signal emitted by the second distance sensor 2402; the second ranging result represents the distance between the second distance sensor 2402 and the shielding component 250, and can also reflect the distance between the second distance sensor 2402 and the middle layer column shield 2303. The shielding component can be a baffle fixed inside the middle layer column shield 2303, or can also be a bent edge at the top of the middle layer column shield 2303.

[0067] Exemplarily, the shielding component 250 is arranged at least inside the uppermost middle layer column shield 2303. Taking a four-layer column shield as an example, the column shields include a top column shield, a first middle layer column shield, a second middle layer column shield, and a bottom column shield from top to bottom in sequence; if the shielding component is only arranged on the second middle layer column shield to represent the distance between the second distance sensor 2402 and the second middle layer column shield, then the second ranging result can be used to judge whether the second middle layer column shield descends normally; but when the second middle layer column shield descends to the bottom, the first middle layer column shield may still be blocked by an obstacle and unable to descend normally. Since the first middle layer shield cannot affect the second middle layer shield that has descended to the bottom, that is, it cannot affect the second ranging result, therefore, if there is no shielding component on the first middle layer column shield, this fault cannot be identified.

[0068] Conversely, if the shielding member 250 is provided on the first intermediate layer column shield, it can be detected according to the second ranging result that the first intermediate layer shield is blocked by an obstacle and cannot descend normally; in addition, if the second intermediate layer shield is blocked by an obstacle and cannot descend normally, then due to the connection between the intermediate layer shields, in the suspended state, the abnormality of the second intermediate layer shield will also affect the first intermediate layer shield, thus affecting the second ranging result. Therefore, through the second ranging result, not only the abnormal state of the first intermediate layer shield can be identified, but also the abnormal state of the second intermediate layer shield can be identified.

[0069] In one embodiment, identifying an obstacle around the column shield 230 according to the second ranging result includes: during the process of the column executing a descending action, if the second ranging result does not decrease to the second preset threshold and no longer decreases, it is determined that there is an obstacle around the column shield 230. As Figure 2B shown, during the descent of the intermediate layer column shield 2303, the second ranging result H2 gradually decreases from the maximum value to the minimum value. The maximum value is the maximum distance between the second distance sensor 2402 and the shielding member 250, and the minimum value is the minimum distance (for example, 0) between the second distance sensor 2402 and the shielding member 250. If the intermediate layer column shield 2303 is blocked by an obstacle and cannot descend to the bottom, the second ranging result cannot continue to decrease before decreasing to the second preset threshold. Therefore, it is possible to determine whether there is an obstacle around the intermediate layer column shield 2303 according to this change characteristic of the second ranging result.

[0070] Exemplarily, since the obstacle will cause the inclination of the intermediate layer column shield 2303, when the number of second distance sensors is multiple, if the second ranging results measured by different second distance sensors are different, it can also be determined that there is an obstacle around the column shield and it has blocked the normal descent of the intermediate layer column shield 2303.

[0071] If the first distance measurement result and the second distance measurement result are combined to identify an obstacle, the following judgment basis can be adopted: during the process of the column executing the descending action, if the first distance measurement result H1 continuously decreases, and the second distance measurement result H2 does not decrease before reaching the second preset threshold and then stops decreasing, it is determined that there is an obstacle around the column shield, and the normal descent of the middle-layer column shield 2303 is blocked. During the descent of the column, the middle-layer column shield 2303 descends to the bottom before the top-layer column shield 2301, and when the middle-layer column shield 2303 descends to the bottom, the second distance measurement result H2 will decrease to the second preset threshold (for example, 0); the continuous decrease of the first distance measurement result H1 indicates that the top-layer column shield 2301 is still in the process of descending. At this time, if the second distance measurement result H2 does not decrease to the second preset threshold and then stops decreasing, it means that the middle-layer column shield 2303 is blocked by an obstacle and cannot descend to the bottom. Therefore, it is possible to judge whether there is an obstacle around the middle-layer column shield 2303 according to the above change characteristics of the first distance measurement result and the second distance measurement result. In summary, the operating table according to the embodiment of the present invention is provided with a distance sensor on the column shield, and the obstacle around the column shield is identified according to the distance measurement result of the distance sensor, which can avoid damaging the column shield due to obstacle occlusion during the descent of the tabletop.

[0072] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present invention thereto. Those of ordinary skill in the art can make various changes and modifications therein without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as claimed in the appended claims.

[0073] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0074] In several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed.

[0075] In the description provided herein, numerous specific details are set forth. It will be understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

[0076] Similarly, it should be understood that in order to streamline the present invention and aid in understanding one or more of the various inventive aspects, in the description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, the methods of the present invention should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the corresponding claims, the inventive point lies in that a technical problem can be solved with fewer features than all the features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate embodiment of the present invention.

[0077] Those skilled in the art will appreciate that, except where features are mutually exclusive, any combination can be used for all the features disclosed in this specification (including the accompanying claims, abstract and drawings), as well as for all the processes or units of any method or apparatus so disclosed. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose.

[0078] In addition, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments but not others, combinations of features of different embodiments are meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0079] Embodiments of various components of the present invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art should understand that in practice, a microprocessor or a digital signal processor (DSP) can be used to implement some or all of the functions of some of the modules according to embodiments of the present invention. The present invention can also be implemented as a device program (such as a computer program and a computer program product) for performing part or all of the methods described herein. Such a program for implementing the present invention can be stored on a computer-readable medium, or can be in the form of one or more signals. Such signals can be downloaded from an Internet website, or provided on a carrier signal, or in any other form.

[0080] It should be noted that the above embodiments are illustrative of the present invention rather than restrictive of the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0081] As described above, it is only the specific implementation manner of the present invention or the description of the specific implementation manner. The protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An operating table, characterized in that: The operating table comprises: mesa; A column supporting the table top; A column driving device, the column driving device is used to drive the column to perform a lifting action to adjust the height of the table top; A base, arranged at the bottom of the column; At least two column guards are sleeved on the outside of the column, and the cross-sectional areas of the at least two column guards decrease from top to bottom, and the column guards at least include a top column guard adjacent to the table and a bottom column guard adjacent to the base; at least one of the column guards is provided with a distance sensor, and the distance sensor is used to measure the distance along the lifting direction of the column; A controller is connected to the column driving device and the distance sensor, and is used to control the column driving device to drive the column to perform the lifting action, and to identify obstacles around the column shield according to the distance measurement result of the distance sensor.

2. The operating table according to claim 1, characterized in that: The distance sensor includes at least one first distance sensor, which is used to measure the distance downward to obtain a first distance measurement result; The identifying obstacles around the pillar guard cover according to the distance measurement result of the distance sensor includes: identifying the obstacles around the pillar guard cover according to the first distance measurement result.

3. The operating table according to claim 2, characterized in that: The first distance sensor is arranged on the top column shield.

4. The operating table according to claim 2, characterized in that: The step of identifying obstacles around the column guard according to the first ranging result includes at least one of the following: When the column does not perform a lifting action, if the first distance measurement result decreases, it is determined that there is an obstacle around the column shield; During the process of the column performing the descending action, if the decreasing rate of the first distance measurement result is greater than a preset rate, it is determined that there are obstacles around the column shield; During the process of the column performing the descending action, if the first distance measurement result does not decrease to the first preset threshold value, that is, does not decrease any more, it is determined that there is an obstacle around the column guard cover; During the process of the column performing a descending action, if the first distance measurement result fluctuates outside a preset range, it is determined that there are obstacles around the column guard cover.

5. The operating table according to claim 2, characterized in that: There are multiple first distance sensors, and identifying obstacles around the column guard according to the first distance measurement result includes: If the first distance measurement result obtained by at least one of the first distance sensors is smaller than the first distance measurement results obtained by other first distance sensors, it is determined that there are obstacles around the pillar guard cover.

6. The operating table according to claim 1, characterized in that: The distance sensor includes at least one second distance sensor, which is used to measure the distance upward to obtain a second distance measurement result; The identifying obstacles around the pillar guard cover according to the distance measurement result of the distance sensor includes: identifying obstacles around the pillar guard cover according to the second distance measurement result.

7. The operating table according to claim 6, characterized in that: The second distance sensor is arranged on the bottom column shield.

8. The operating table according to claim 7, characterized in that: The column guard also includes at least one intermediate column guard disposed between the top column guard and the bottom column guard; A shielding component located above the second distance sensor is arranged on the inner side of at least one of the intermediate layer column shields, and the second distance measurement result represents the distance between the second distance sensor and the shielding component.

9. The operating table according to claim 8, characterized in that: The shielding component is at least arranged on the inner side of the uppermost intermediate column shield.

10. The operating table according to claim 6, characterized in that: The step of identifying obstacles around the column guard cover according to the second ranging result includes: During the process of the column performing the descending action, if the second distance measurement result does not decrease to the second preset threshold value, that is, does not decrease any more, it is determined that there are obstacles around the column guard cover.

11. The operating table according to claim 6, characterized in that: The distance sensor further includes at least one first distance sensor, which is used to measure the distance downward to obtain a first distance measurement result; The step of identifying obstacles around the column guard cover according to the distance measurement result of the distance sensor comprises: During the process of the column performing the descending action, if the first distance measurement result continues to decrease, and the second distance measurement result does not decrease to the second preset threshold value, that is, does not decrease any more, it is determined that there are obstacles around the column guard cover.

12. The operating table according to claim 6, characterized in that: There are multiple second distance sensors, and identifying obstacles around the column guard according to the second distance measurement result includes: If the second distance measurement results measured by different second distance sensors are different, it is determined that there are obstacles around the column guard cover.

13. The operating table according to claim 1, characterized in that: The controller is also used to control the column driving device to stop driving the column to perform a descending action when the obstacle is identified, and generate prompt information about the obstacle.

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