Multifunctional hand bracket

Abstract

The utility model provides a multifunctional hand supporting frame, and relates to the field of medical instruments. One end of the hand supporting plate is movably connected with the horizontal base, and a groove body or a notch is formed in the hand supporting plate; and the screen frame rod is movably connected with the other end of the hand supporting plate and can rotate into the groove body or the notch. According to different position relations among the horizontal base, the hand supporting plate and the screen frame rod, the hand supporting frame is used as the hand supporting frame in a linear horizontal state, and the anesthesia screen frame is used as the anesthesia screen frame in an inverted L-shaped vertical state, so that the integrated design of the hand supporting frame and the anesthesia screen frame is realized, the working intensity of itinerant nurses is reduced, and the working efficiency of the itinerant nurses is improved. And the working efficiency in the operation preparation stage is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a multifunctional hand support. Background Art

[0002] In chest surgeries such as cardiac surgeries, the patient's arms are usually placed above the armrests hanging on the metal side panels of the operating table, and arteriovenous puncture and other treatment operations are performed on the patient's hands; after the puncture, before the operation officially begins, the armrests need to be removed, and the patient's hands need to be placed on both sides of the body. At the same time, it is necessary to find fixed sliders to fix the anesthesia screen frame at the patient's head and neck position, and then place sterile surgical towels to strictly separate the sterile surgical area and the anesthesia management area. The surgical preparation stage before going on stage is the busiest period of an operation, and the circulating nurses need to do a lot of work. At the same time, in the process of disassembling the armrest and then installing the anesthesia screen frame, it is very easy for the patient's limbs to fall off under anesthesia, causing harm to the patient. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a multifunctional hand support frame, which solves the problems of complicated preparation work and surgical risks caused by separate use of the hand support frame and the anesthesia screen frame.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] In one aspect, the present invention provides a multifunctional hand support, comprising:

[0008] A horizontal base; a hand support plate movably connected to the horizontal base at one end, a slot body is arranged in the hand support plate; a screen frame rod movably connected to the other end of the hand support plate, the screen frame rod can be rotated into the slot body.

[0009] In some embodiments, a first stopper is provided at the hinged position between the hand support plate and the screen frame rod.

[0010] In some embodiments, the first stopper is disposed on the hand support plate, and the distance from the hinged end is equal to the thickness of the screen frame rod; or the first stopper is disposed on the screen frame rod, and the distance from the hinged end is equal to the thickness of the hand support plate.

[0011] In some embodiments, the first stopper is a hinged rod, which is detachably disposed on the hand support plate and spans the slot body;

[0012] Alternatively, the first stopper is a movable component arranged on the screen frame rod. When the first stopper is extended, it is coupled with the hand support plate to resist the screen frame rod and prevent it from falling.

[0013] The first stopper is arranged near the hinged position of the hand support plate and the screen frame rod, which can ensure that when the multifunctional hand support is used as an anesthesia screen frame, the screen frame rod is stopped by the first stopper and does not fall, thereby improving the stability of the multifunctional hand support and ensuring the safety of the operation.

[0014] In some embodiments, the groove body is a groove or a through groove. When the groove body is a through groove, a second stopper is provided on the bottom surface of the hand support plate.

[0015] In some embodiments, when the slot body is a through slot, the first stopper is a fixed rod / plate, which is fixedly disposed on the hand support plate and spans the through slot; when the second stopper is a hinged rod, the hinged rod spans the through slot.

[0016] In some embodiments, the horizontal base is slidably connected to the operating table track via a slider, the horizontal base is rotatably connected to the slider, and the slider is detachably connected to the operating table track.

[0017] In some embodiments, a first limiting member is disposed on the sliding block, and the first limiting member enables the hand support plate to be locked when it forms different angles with the horizontal base.

[0018] In some embodiments, the slider is divided into a first slider and a second slider, the first slider is connected to the operating table track, the second slider is connected to the horizontal base, the first slider and the second slider are hinged, a first support member is arranged between the first slider and the second slider, the first support member is rotatably connected under the second slider, and the length / radius of the first support member is greater than the shortest distance from its rotation axis to the edge of the first slider.

[0019] In some embodiments, a second support member is provided on the horizontal base and / or the hand support plate, and the second support member is:

[0020] A plate extending away from the operating table; or

[0021] Foldable legs on the hand support board; or

[0022] The rod at the bottom of the hand support board and the matching piece at the bottom of the horizontal base.

[0023] In some embodiments, a second limiter is provided on the horizontal base and / or the hand support plate, and the second limiter is:

[0024] Insert the pin through the slider, horizontal base, and into the hand support board; or

[0025] A stay cable between the horizontal base and the pallet; or

[0026] A hinged structure with interference fit between the hand support plate and the horizontal base; or

[0027] A damping shaft between the hand support plate and the horizontal base.

[0028] In some embodiments, a retractable extension rod is also provided on the screen rack rod.

[0029] In some embodiments, one end of the screen rack rod or the extension rod away from the hand support board is rotatably connected to the support rod.

[0030] In some embodiments, a soft cushion is provided on the armrest.

[0031] (III) Beneficial effects

[0032] The utility model provides a multifunctional hand support frame, which has the following beneficial effects compared with the prior art:

[0033] The utility model utilizes different positional relationships among a horizontal base, a hand support plate and a screen frame rod, and can use the multifunctional hand support frame as a hand support frame by forming an "I"-shaped horizontal state, and can use the multifunctional hand support frame as an anesthesia screen frame by forming a "Γ"-shaped vertical state, thereby realizing an integrated design of the hand support frame and the anesthesia screen frame, reducing the workload of circulating nurses and improving work efficiency and safety in the surgical preparation stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 is a schematic structural diagram of the first embodiment of the present application at a viewing angle when used in a horizontal posture;

[0036] Figure 2 is a schematic structural diagram of the first embodiment of the present application when used in a horizontal posture at another viewing angle;

[0037] Figure 3 is a schematic diagram of the structure of the first embodiment of the present application at a viewing angle when stored in a horizontal posture;

[0038] Figure 4 is a schematic structural diagram of the first embodiment of the present application at a viewing angle when used in a vertical posture;

[0039] Figure 5 It is a schematic diagram of the structure of the second embodiment of the present application at a viewing angle when used in a vertical posture.

[0040] Description of reference numerals:

[0041] 1- horizontal base, 2- hand support board, 3- screen rack rod, 4- operating table, 5- slide block;

[0042] 11-second position limiting member, 12-second fastening bolt, 21-slot body, 22-first stopper, 23-second stopper, 31-extension rod, 41-track, 51-first fastening bolt, 52-rotating shaft, 53-notch, 54-first slider, 55-second slider, 56-first support member;

[0043] 221 - first hinged rod, 222 - first support ear, 223 - second support ear, 231 - second hinged rod, 232 - third support ear, 233 - fourth support ear. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] The embodiment of the present application provides a multifunctional hand support, which solves the problems of complicated preparation work and surgical risks caused by the separate use of the hand support and the anesthesia screen, and realizes the integrated design of the hand support and the anesthesia screen, thereby making the pre-operative preparation work more efficient and more orderly, and further improving the safety of the operation.

[0046] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0047] The inventor found in his daily work that an arm support needs to be installed in the surgical preparation stage before performing a chest surgery to place the patient's arm for puncture. After the puncture, the arm support needs to be removed and the patient's hands need to be placed on both sides of the body. At the same time, a fixed slider is needed to fix the anesthesia screen frame before the sterile towel can be spread out to create a sterile area for surgery. This process is very cumbersome, and the circulating nurses also have other preparations (such as assisting doctors with disinfection, wearing sterile clothes, etc.). The repeated installation of multiple instruments not only consumes part of the nurses' physical strength, but also affects the efficiency of going on stage. Moreover, when the arm support is removed from the side of the operating table, it is very easy to cause the patient's limbs to slip under anesthesia, causing secondary injuries to the patient.

[0048] Therefore, the inventor proposed an inventive concept - integrating the hand support and the anesthesia screen frame into an integrated design: during arteriovenous puncture, the multifunctional hand support frame is set to a horizontal position and can be used as a hand support frame; when the hand support frame is not needed but the anesthesia screen frame is needed, the multifunctional hand support frame is folded into a vertical position, and the folded parts inside the hand support frame are opened, and the multifunctional hand support frame can be used as an anesthesia screen frame. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings in the specification and the specific implementation methods.

[0049] Embodiment 1:

[0050] See also Figure 1 and 2 A multifunctional hand support frame proposed in an embodiment of the present application includes a horizontal base 1, a hand support board 2 hinged to the horizontal base 1 at one end, and a screen frame rod 3 hinged to the other end of the hand support board 2.

[0051] The horizontal base 1, the hand support board 2 and the screen frame rod 3 can be rotated to form a "I"-shaped horizontal posture or a "Γ"-shaped vertical posture. In the horizontal posture, the multifunctional hand support frame is used as a hand support frame, and in the vertical posture, the multifunctional hand support frame is used as an anesthesia screen frame.

[0052] The specific structural form of the multifunctional hand support frame of this embodiment used as a hand support frame after being adjusted to a horizontal posture is described below in conjunction with the accompanying drawings.

[0053] See also Figure 1 There is a groove 21 in the middle of the arm support board 2, and the shape is adapted to the screen frame rod 3, so that when the screen frame rod 3 is rotated into the groove 21, it can be just accommodated in the groove 21. In this embodiment, the groove 21 is a groove, and the screen frame rod 3 is rotated into the groove to form a flat board surface, which is then in a horizontal posture with the hinged horizontal base 1 for placing the arm.

[0054] It should be emphasized that, in specific implementation, the method of accommodating the screen rack rod 3 is not limited to adopting a structural form of setting a groove in the middle of the hand support board 2, and the setting position is also not restricted, as long as the screen rack rod 3 and the hand support board 2 form a flat board surface. For example, a groove 21 can be set on the side of the hand support board 2; a notch that is compatible with the screen rack rod 3 can also be set on the side of the hand support board 2, etc.

[0055] The specific structural form of the multifunctional armrest in this embodiment used as an anesthesia screen after being adjusted to a vertical posture is described below in conjunction with the accompanying drawings.

[0056] See also Figure 2A first stopper 22 is provided near the hinged position of the hand support board 2 and the screen frame rod 3. The hand support board 2 and the screen frame rod 3 are rotated to form a vertical posture. At this time, the screen frame rod 3 is above the operating table 4, and the first stopper 22 prevents the screen frame rod 3 from rotating and falling due to gravity. Since the screen frame rod 3 makes the center of gravity of the multifunctional hand support frame above the operating table 4, and the contact surface of the hand support board 2 and the horizontal base 1 is flat, the hand support board 2 can be stably in a vertical posture.

[0057] In this embodiment, in consideration of allowing the screen frame rod 3 to pass through the position of the first stopper 22 and then be received in the groove body 21, the first stopper 22 includes a first hinged rod 221 arranged on the hand support plate 2, one end of the first hinged rod 221 is hinged to a first ear 222 protruding from one side of the groove body 21, and the other end is hinged to a second ear 223 protruding from the other side of the groove through a latch to achieve disassembly and installation. In a vertical posture, the first hinged rod 221 spans the groove body 21 to prevent the screen frame rod 3 from falling, thereby making the screen frame rod 3 horizontal.

[0058] Attached Figure 1 and 2 The first hinge rod 221 provided on the hand support plate shown in the figure is only one embodiment of the first stopper 22. Other limiting structures are also possible. For example, a through hole can be opened on the screen frame rod 3 to insert a pin larger than the width of the slot body 21, or a slider can be extended from the screen frame rod 3. As long as a stable component spanning the slot body 21 can be formed, the component can be coupled with the hand support plate 2 or the screen frame rod 3, so that the screen frame rod 3 is blocked by the hand support plate 2 and cannot fall, and the component does not affect the storage of the screen frame rod 3. It should be noted that since the screen frame rod 3 is horizontal when it functions normally, the position of the component coupled with the hand support plate 2 or the screen frame rod 3 is determined. When the first stopper 22 is located on the hand support plate 2, the distance from the hinge end is equal to the thickness of the screen frame rod; when the first stopper 22 is located on the screen frame rod 3, the distance from the hinge end is equal to the thickness of the hand support plate 2.

[0059] Some preferred implementation structures of the multifunctional hand support in a horizontal posture are further described below in conjunction with the accompanying drawings.

[0060] See also Figure 3 In order to adapt to the track 41 for fixing the accessories of the operating table set on the side of the conventional operating table 4, and considering the different installation and use positions of the hand support and the anesthesia screen, in this embodiment, the horizontal base 1 is slidably connected to the operating table 4 through a slider 5, and the slider 5 is provided with a first fastener, which is perpendicular to the extension direction of the track 41 when installed. In this embodiment, the first fastener is a first fastening bolt 51, and the multifunctional hand support can be slidably adjusted / fixed at a specific position on the track 41 by loosening / tightening the first fastening bolt 51.

[0061] Attached Figure 3The first fastening bolt 51 for fixing the slider 5 is only one implementation of the first fastener. Other implementations such as setting a spring clamp etc. are also possible, as long as the friction between the slider 5 and the track 41 can be increased to fix the slider 5 on the track 41.

[0062] See also Figure 3 Considering that the multifunctional arm support faces different patients, performs different surgical operations, and places the operating room instruments in different positions when in use, the angle at which the patient's arm is placed is not fixed. Therefore, the angle between the multifunctional arm support and the operating table 4 is adjustable. In this embodiment, the horizontal base 1 is rotatably connected to the slider 5. The slider 5 is a plate-like structure extending outward from the operating table 4 and has a hole in the center. A rotating shaft 52 is provided under the matching horizontal base 1 to pass through the hole, so that the multifunctional arm support can rotate freely on the slider 5.

[0063] Furthermore, in order to consider the safety of the operation and prevent the multifunctional hand support frame in a horizontal posture from being accidentally touched and causing it to swing, a first stopper is provided on the slider 5. In this embodiment, the first stopper is an arc-shaped notch 53 provided on the slider 5, and the center of the arc midline of the notch 53 is the position where the center of the rotating shaft 52 is located; a second fastening bolt 12 is provided at the bottom of the horizontal base 1, and the second fastening bolt 12 passes through the notch 53. When in use, after the multifunctional hand support frame is rotated to a specified angle, the second fastening bolt 12 in the notch 53 can be tightened to fix the multifunctional hand support frame.

[0064] Attached Figure 2 The cooperation between the second fastening bolt 12 and the slot 53 shown in the figure is only one implementation method of the first limit member. Other methods such as setting a spur gear at the position of the rotating shaft 52 and setting a spring pin at the bottom of the hand support plate 2 to cooperate with the spur gear tooth groove are also possible, as long as the hand support plate 2 can be locked when it forms different angles with the horizontal base 1.

[0065] See also Figure 3In some surgeries, the multifunctional hand support is not needed. Considering its storage and hiding, the slider 5 is divided into a first slider 54 and a second slider 55, wherein the first slider 54 is used to connect the track 41 on the operating table 4, and the second slider 55 is used to be rotatably connected to the horizontal base 1. The first slider 54 and the second slider 55 are hinged, and a first support member 56 is arranged between the first slider 54 and the second slider 55. In this embodiment, the first support member 56 is a fan-shaped paddle, which is rotatably connected to the second slider 55. The radius of the fan-shaped paddle is greater than the closest distance from its rotation axis to the edge of the first slider 54, so that the fan-shaped paddle can extend to the bottom of the first slider 54 and couple with it when in a specific position, blocking the second slider 55 from rotating downward. When the multifunctional hand support is not needed, the multifunctional hand support is rotated to 90° with the horizontal direction of the slider 5, that is, the multifunctional hand support is parallel to the direction of the operating table 4, and the multifunctional hand support is fixed on the slider 5. At this time, the second slider 55 is folded toward the ground, so that the multifunctional hand support can be hidden and stored at the side of the operating table. When the multifunctional arm support is needed, the second slider 55 is folded upwards. When the second slider 55 is horizontal, the first support member 56 is moved to extend under the first slider 54 to prevent the second slider 55 from rotating downwards. At this time, the multifunctional arm support can be used normally.

[0066] See also Figure 3 In order to make the multifunctional hand support stand able to be placed horizontally, a second support member (not marked in the figure) is provided on the multifunctional hand support stand. In this embodiment, the second support member is a plate-like structure extending from the slider 5 away from the operating table, and the plate-like structure exceeds the horizontal base 1, so that the hand support board 2 can be placed horizontally on the plate-like structure. A preferred embodiment is that the second support member is integrated with the second slider 55.

[0067] It should be emphasized that, in the specific implementation, in order to enable the multifunctional arm support to be placed horizontally better, it is not limited to the structural form of extending the slider 5, as long as the arm support board 2 can be placed horizontally better. For example, a foldable leg can be set at the bottom of the end of the arm support board 2 away from the operating table 4, or a longer movable rod can be installed at the bottom of the arm support board 2 to cooperate with the fixing part set at the bottom of the horizontal base 1, and so on.

[0068] In order to further improve the patient's comfort, a cushion is provided on the multifunctional arm support. When in a horizontal posture, the cushion is placed on the multifunctional arm support. It is easy to imagine that the cushion can be placed directly on the multifunctional arm support, can be detachably installed on the multifunctional arm support by means of Velcro or the like, or can be arranged on the multifunctional arm support in other ways, as long as it can meet the requirements of not affecting the unfolding of the screen rack rod 3 when in a vertical posture.

[0069] Some preferred implementation structures of the multifunctional hand support in a vertical posture are further described below in conjunction with the accompanying drawings.

[0070] See also Figure 3 In order to consider the safety of the operation and prevent the hand support board 2 in the vertical posture from being accidentally knocked down, a second stopper 11 is provided between the hand support board 2 and the horizontal base 1. In this embodiment, the second stopper 11 is a pin that passes through the bottom through hole of the slider 5, passes through the through hole of the horizontal base 1 (not shown in the figure), and is inserted into the opening (not shown in the figure) on the contact surface between the hand support board 2 and the horizontal base 3 in the vertical posture.

[0071] It should be emphasized that, in specific implementation, the second limit member 11 is not limited to the structural form of a pin, and it is only necessary to achieve a stable positional relationship between the hand support plate 2 and the horizontal base 1. For example, an elastic inclined cable may be provided between the hand support plate 2 and the horizontal base 1, the hinged structure of the hand support plate 2 and the horizontal base 1 may be interference fit, a damping shaft 52 may be provided, and the like.

[0072] In order to further increase the adaptability of the embodiment of the present application to the width of the operating table 4, a retractable extension rod 31 is further provided on the screen frame rod 3. The extension rod 31 is retracted into the inside of the screen frame rod 3 when the multifunctional arm support is in a horizontal position, and can be extended from the screen frame rod 3 when the multifunctional arm support is in a vertical position.

[0073] Considering the stability of the screen frame rod 3 in a vertical posture, the end of the screen frame rod 3 or the extension rod 31 away from the hand support board 2 is rotatably connected with a rod body. The above-mentioned rod body is rotated and vertically overlapped on the other side of the operating table to support the screen frame rod 3 or the extension rod 31. At this time, the multifunctional hand support frame is in a "Π" shape.

[0074] Embodiment 2:

[0075] like Figure 4 As shown, the first stopper 22 is a limit rod / plate fixed on the hand support plate 2, and the groove body 21 opened in the middle of the hand support plate 2 is a through groove. At this time, the screen frame rod 3 cannot be unfolded toward the first stopper 22, and the screen frame rod 3 is unfolded from the groove body 21 from one side of the bottom surface of the hand support plate 2.

[0076] In order to prevent the screen frame rod 3 from falling down from the through slot in a horizontal posture, a second stopper 23 is provided on the bottom surface of the hand support board 2. In this embodiment, the second stopper 23 includes a second hinged rod 231 provided on the bottom surface of the hand support board 2 across the slot body 21, one end of the second hinged rod 231 is hinged to a third support ear 232 protruding from one side of the slot body 21, and the other end is disassembled and installed with a fourth support ear 233 protruding from the other side of the slot body 21 through a latch. When both ends of the second hinged rod 231 are installed on the support ears, the screen frame rod 3 is blocked and cannot fall, and forms a whole with the hand support board 2 to achieve a horizontal posture.

[0077] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0078] 1. The utility model utilizes the different positional relationships among the horizontal base, the hand support board and the screen frame rod to form a "I"-shaped horizontal state for use as a hand support frame, and a "Γ"-shaped vertical state for use as an anesthesia screen frame, thereby realizing an integrated design of the hand support frame and the anesthesia screen frame, reducing the workload of circulating nurses and improving the work efficiency in the surgical preparation stage.

[0079] 2. The utility model multifunctional hand support has a stopper near the hinged position of the hand support plate and the screen frame rod. When the multifunctional hand support is used as an anesthesia screen frame, the bearing capacity of the screen frame rod is improved, the stability of the screen frame rod is enhanced, and the safety of the operation is further ensured.

[0080] 3. The multifunctional hand support of the utility model is slidably connected to the operating table track via a slider and can be adjusted / fixed at any position of the track; further, through the rotational connection between the horizontal base and the slider, the multifunctional hand support can be better adapted to different surgeries and different patients, thereby improving the adaptability of the multifunctional hand support.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0082] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional hand support, characterized in that: include: Horizontal base; A hand support plate with one end movably connected to the horizontal base, wherein a groove or a notch is provided in the hand support plate; A screen frame rod movably connected to the other end of the hand support plate, and the screen frame rod can be rotated into the groove body or the notch; A first stopper is provided at the hinged position between the hand support plate and the screen rack rod; The first stopper is a hinged rod, which is detachably arranged on the hand support plate and spans the slot body; Or the first stopper is a movable part arranged on the screen frame rod, and when the first stopper is extended, it is coupled with the hand support plate to resist the screen frame rod and prevent it from falling; The horizontal base is slidably connected to the operating table track via a slider, the horizontal base is rotatably connected to the slider, and the slider is detachably connected to the operating table track; The slider is divided into a first slider and a second slider, the first slider is connected to the operating table track, the second slider is connected to the horizontal base, the first slider and the second slider are hinged, a first support member is arranged between the first slider and the second slider, the first support member is rotatably connected under the second slider, and the length / radius of the first support member is greater than the shortest distance from its rotation axis to the edge of the first slider.

2. The multifunctional armrest according to claim 1, characterized in that: The groove body is a groove or a through groove. When the groove body is a through groove, a second stopper is arranged on the bottom surface of the hand support plate.

3. The multifunctional armrest according to claim 2, characterized in that: When the slot body is a through slot, the first stopper is a fixed rod / plate, which is fixedly arranged on the hand support plate and spans across the through slot; when the second stopper is a hinged rod, the hinged rod spans across the through slot.

4. The multifunctional hand support according to claim 1, characterized in that: The slide block is provided with a first limiting member, and the first limiting member enables the hand support plate to be locked when forming different angles with the horizontal base.

5. The multifunctional hand support according to claim 1, characterized in that: A second support member is provided on the horizontal base and / or the hand support plate, and the second support member is: The slide block is a plate extending away from the operating table; or Foldable legs on the hand support board; or The rod at the bottom of the hand support board and the matching piece at the bottom of the horizontal base.

6. The multifunctional hand support according to any one of claims 1 to 5, characterized in that: A second limiting member is provided on the horizontal base and / or the hand support plate, and the second limiting member is: Insert the pin through the slider, horizontal base, and into the hand support board; or The inclined cable between the horizontal base and the hand support board; or An interference fit hinge structure between the hand support plate and the horizontal base; or a damping shaft between the hand support plate and the horizontal base.

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