Support arm device and medical device

Abstract

According to the supporting arm device and the medical device, the supporting arm device comprises a connecting base, an assembling base and a bourdon tube, the bourdon tube comprises a sleeve and an elastic assembly, the sleeve comprises a tube body, a first lug part and a second lug part, and the first lug part and the assembling base are rotationally connected around a first shaft piece and are divided into a first extending section and a second extending section through the first shaft piece. The second lug part is rotationally connected with the connecting seat around the second shaft piece and is divided into a third extension section and a fourth extension section by the second shaft piece; the elastic assembly connects the sleeve and the connecting base, the assembling base is connected with medical equipment, and the elastic assembly is used for providing balance force so that the spring tube can support the weight of the medical equipment. The connecting base and / or the assembling base are / is provided with at least one limiting hole, the limiting hole is used for allowing a cylindrical tool to be inserted, and the limiting hole is exposed when the bourdon tube obliquely and downwards rotates to a preset angle relative to the connecting base. The cylindrical tool is inserted into the limiting hole and abuts against the top side of the second extension section or the bottom side of the fourth extension section so as to limit the spring tube to rotate upwards around the second shaft piece.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a support arm device and a medical device. Background Art

[0002] The support arm device is a common mechanism in the operating room, used to support and suspend medical equipment such as surgical lights, monitors and cameras. Taking the use of the support arm device to support the surgical light as an example, when installing the surgical light with the existing support arm device, at least two installers are required, one of whom pulls the support arm device to the appropriate installation height, and the other installs the surgical light to the support arm device. During this process, the first installer must hold the support arm device all the time, which can easily cause fatigue, and if the support arm device is not held, the support arm device will suddenly bounce up, which may damage the ceiling or the support arm device itself, or even injure the installer, which is very unsafe. Summary of the invention

[0003] In view of this, the present invention provides a support arm device and a medical device.

[0004] The support arm device provided in the first aspect of the present invention is used to support medical equipment, the support arm device comprises a connecting seat, an assembly seat and a spring tube, the spring tube comprises a sleeve and an elastic component, the sleeve comprises a tube body, a first ear portion and a second ear portion;

[0005] The first ear is disposed at one end of the tube body and is rotatably connected to the assembly seat around a first shaft, the first ear is divided into a first extension section and a second extension section by the first shaft, and the first extension section is connected to the tube body;

[0006] The second ear portion is disposed at the other end of the tube body and is rotatably connected to the connecting seat around the second shaft member, the second ear portion is divided into a third extension section and a fourth extension section by the second shaft member, and the third extension section is connected to the tube body;

[0007] The elastic component is connected to the sleeve and the connecting seat, the assembly seat is used to connect the medical device, and the elastic component is used to provide a balancing force so that the spring tube can support the weight of the medical device;

[0008] Wherein, the connecting seat and / or the assembly seat is provided with at least one limiting hole, and the limiting hole is used to insert a cylindrical tool. The limiting hole is exposed when the spring tube is tilted and rotated downward to a preset angle relative to the connecting seat. The cylindrical tool is inserted into the limiting hole and abuts against the top side of the second extension segment or the bottom side of the fourth extension segment to limit the spring tube from rotating upward around the second axis.

[0009] The medical device provided in the second aspect of the present invention comprises:

[0010] Medical devices;

[0011] The support arm device described above;

[0012] Wherein, the medical device is installed on the assembly seat.

[0013] It can be seen from the above technical solution that the support arm device proposed in the first aspect of the present invention is provided with a limiting hole on the assembly seat and / or the connecting seat. When the spring tube is tilted downward relative to the connecting seat to a preset angle and the limiting hole is exposed, the operator can insert the cylindrical tool carried with him into the limiting hole to keep the spring tube tilted downward, so that the operator can install the medical device on the connecting seat or repair or replace the medical device installed on the assembly seat. In this embodiment, a single operator can complete the installation of the medical device on the connecting seat or repair or replace the medical device installed on the assembly seat, saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained like these accompanying drawings without paying any creative work.

[0015] Figure 1 is a structural schematic diagram of a first state of a support arm device provided by an embodiment of the present invention;

[0016] Figure 2 is a schematic cross-sectional view of a partial structure of a support arm device provided in one embodiment of the present invention;

[0017] Figure 3 is a schematic structural diagram of a sleeve provided in one embodiment of the present invention;

[0018] Figure 4 is a structural schematic diagram of a second state of a support arm device provided by an embodiment of the present invention;

[0019] Figure 5 It is a structural schematic diagram of an assembly seat proposed in one embodiment of the present invention;

[0020] Figure 6 is a partial structural schematic diagram of a support arm device provided in one embodiment of the present invention;

[0021] Figure 7 is a schematic diagram of the cooperation between a pull rod connector, a pull rod and a second shaft member provided in one embodiment of the present invention;

[0022] Figure 8is a schematic structural diagram of a second shaft member provided in one embodiment of the present invention;

[0023] Fig. 9 is a schematic diagram of a pull rod connecting member according to an embodiment of the present invention moving to the highest point;

[0024] Fig.10 is a schematic diagram of a pull rod connecting member according to an embodiment of the present invention moving to the lowest point;

[0025] Fig.11 is a schematic structural diagram of a second shaft member provided in another embodiment of the present invention;

[0026] Fig.12 is a schematic structural diagram of a second shaft member provided in one embodiment of the present invention;

[0027] Fig.13 is a schematic cross-sectional view of a partial structure of a support arm device provided in another embodiment of the present invention;

[0028] Fig.14 is a schematic cross-sectional view of a partial structure of a support arm device provided in another embodiment of the present invention;

[0029] Fig.15 is a schematic structural diagram of a connecting socket from a first perspective according to an embodiment of the present invention;

[0030] Fig.16 It is a structural schematic diagram of a connecting socket from a second viewing angle according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 5As shown, an embodiment of the present invention provides a support arm device 100 for supporting medical equipment. The support arm device 100 includes a connecting seat 10, an assembly seat 20 and a spring tube 30. The spring tube 30 includes a sleeve 31 and an elastic component 32. The sleeve 31 includes a tube body 311, a first ear 312 and a second ear 313. The first ear 312 is provided at one end of the tube body 311 and is rotatably connected to the assembly seat 20 around the first shaft 40. The first ear 312 is divided into a first extension section 3121 and a second extension section 3122 by the first shaft 40. The first extension section 3121 is connected to the tube body 311. The second ear 313 is provided at the other end of the tube body 311 and is rotatably connected to the connecting seat 10 around the second shaft 50. The second ear 313 is divided into a third extension section 3131 and a fourth extension section 3132 by the second shaft 50. The third extension section 3131 is connected to the tube body 311. The elastic component 32 connects the sleeve 31 and the connecting seat 10. The assembly seat 20 is used to connect the medical device. The elastic component 32 is used to provide a balancing force so that the spring tube 30 can support the weight of the medical device. The assembly seat 20 is provided with at least one limiting hole E, and the limiting hole E is used to insert the cylindrical tool 200. When the spring tube 30 is tilted downward relative to the connecting seat 10 and rotated to a preset angle, the limiting hole E is exposed. The cylindrical tool 200 is inserted into the limiting hole E and abuts against the top side of the second extension section 3122 to limit the spring tube 30 from rotating upward around the second shaft 50. The "tilted downward", "top side" and "upward rotation" mentioned above are all for the orientation of the support arm device 100 in normal use.

[0033] It should be noted that the limiting hole E is not limited to being set in the assembly seat 20. For example, in another embodiment, the connection seat 10 is provided with at least one limiting hole E, and the limiting hole E is used to insert the cylindrical tool 200. When the spring tube 30 is tilted downward relative to the connection seat 10 and rotated to a preset angle, the limiting hole E is exposed. The cylindrical tool 200 is inserted into the limiting hole E and abuts against the bottom side of the fourth extension section 3132 to limit the spring tube 30 from rotating upward around the second shaft 50. Among them, the "tilted downward", "bottom side" and "upward rotation" are all for the orientation of the support arm device 100 in normal use.

[0034] Taking the application of the support arm device 100 in an operating room as an example, in one usage scenario, the support arm device 100 is directly or indirectly connected to the ceiling of the operating room through the connecting seat 10, and the assembly seat 20 is used to connect medical equipment such as surgical lights, displays, control boxes and cameras. When it is necessary to install medical equipment on the connecting seat 10 or the medical equipment installed on the assembly seat 20 fails and needs to be repaired or replaced, the operator can pull the spring tube 30 so that the spring tube 30 is tilted downward relative to the connecting seat 10 to a preset angle and expose the limit hole E. At this time, the operator can insert a portable cylindrical tool 200, such as a screwdriver or an Allen wrench, into the limit hole E. The sleeve 31 cannot rotate upward under the restriction of the cylindrical tool 200, so that the spring tube 30 remains tilted downward, thereby facilitating the operator to install medical equipment on the connecting seat 10 or repair or replace the medical equipment installed on the assembly seat 20.

[0035] The support arm device 100 proposed in this embodiment is provided with a limiting hole E on the assembly seat 20 and / or the connection seat 10. When the spring tube 30 is tilted downward relative to the connection seat 10 and rotated to a preset angle to expose the limiting hole E, the operator can insert the cylindrical tool 200 carried with him into the limiting hole E, so that the spring tube 30 remains tilted downward, so that the operator can install the medical device on the connection seat 10 or repair or replace the medical device installed on the assembly seat 20. In this embodiment, a single operator can complete the installation of the medical device on the connection seat 10 or repair or replace the medical device installed on the assembly seat 20, saving manpower and material resources.

[0036] like Figure 4 and Figure 5 As shown, in one embodiment, the assembly seat 20 includes a first seat body 21 and a stopper 22, the first ear portion 312 is rotatably connected to the first seat body 21, the stopper 22 is arranged on the top side of the first ear portion 312, and is adjustably mounted on the first seat body 21 on the rotation path of the second extension section 3122, the stopper 22 is used to limit the second extension section 3122 from rotating upward around the first shaft 40, and the stopper hole E is located below the stopper 22. The stopper 22 is used to limit the rotation of the spring tube 30 when the support arm device 100 is in normal use. It should be noted that the "top side", "upward rotation" and "below" are all for the orientation of the support arm device 100 in normal use.

[0037] like Figure 5As shown, in one embodiment, the first seat body 21 includes two first side plates 211 spaced apart, and the stopper 22 is adjustably mounted on the two first side plates 211. The assembly seat 20 also includes an adjustment rod 23 and a first adjustment bolt 24. The adjustment rod 23 is rotatably mounted between the two first side plates 211. The adjustment rod 23 is provided with a first screw hole or a hole in a radial direction, and the stopper 22 is provided with a second screw hole. The first adjustment bolt 24 is threadedly matched with the first screw hole or the hole and the second screw hole. By rotating the first adjustment bolt 24, the stopper 22 can be driven to adjust on the rotation path of the second extension section 3122.

[0038] like Figure 5 As shown, in one embodiment, the two first side plates 211 are provided with adjustment slots 2111, and the two ends of the limiter 22 are respectively inserted into the adjustment slots 2111 of the two first side plates 211 and can be adjusted along the adjustment slots 2111. When the position of the limiter 22 needs to be adjusted, the operator rotates the first adjustment bolt 24, and the first adjustment bolt 24 drives the limiter 22 to move along the adjustment slot 2111.

[0039] In one embodiment, a groove is provided at one end of the first adjusting bolt 24, and the groove can be but is not limited to a slotted groove, a cross groove, or a hexagonal groove. In this way, when the first adjusting bolt 24 needs to be rotated, the operator can insert a slotted screwdriver, a cross screwdriver, or a hexagonal wrench into the groove and rotate it to drive the first adjusting bolt 24 to rotate.

[0040] like Figure 5 As shown, in one embodiment, the adjustment slot 2111 includes a first end A1 and a second end A2, the first end A1 is higher than the second end A2, and the height of the limiting hole E is lower than the second end A2. It should be noted that the "lower than" mentioned above refers to the position of the support arm device 100 in normal use.

[0041] like Figure 5 As shown, in one embodiment, the adjustment slot 2111 is in an arc shape with the first shaft 40 as the center. Of course, the adjustment slot 2111 is not limited to an arc shape, and can also be a straight line or other shapes, which can be determined according to actual design requirements.

[0042] like Figure 6 As shown, in one embodiment, the stopper 22 includes a first position 22a closest to the stopper hole E. When the stopper 22 is at the first position 22a, the spring tube 30 remains horizontal under the restriction of the stopper 22. Of course, the spring tube 30 does not necessarily remain horizontal under the restriction of the stopper 22, and may also be at a certain angle relative to the horizontal plane, which may be determined according to actual design requirements. It should be noted that the "horizontal" mentioned above refers to the orientation of the support arm device 100 in normal use.

[0043] like Figure 1 As shown, in one embodiment, the support arm device 100 further includes a rod 60, the rod 60 includes a first end and a second end, the first end of the rod 60 is rotatably connected to the connecting seat 10 around the third shaft 101, the second end of the rod 60 is rotatably connected to the assembly seat 20 around the fourth shaft 102, and the sleeve 31, the rod 60, the connecting seat 10 and the assembly seat 20 are combined to form a parallelogram four-bar linkage. Specifically, on a plane perpendicular to the second shaft 50, the sleeve 31, the rod 60, the connecting line of the first shaft 40 and the fourth shaft 102, and the connecting line of the second shaft 50 and the third shaft 101 are combined to form a parallelogram four-bar linkage. In this embodiment, a parallelogram four-bar linkage is formed by combining the sleeve 31, the rod 60, the connecting seat 10 and the assembly seat 20. According to the principle that the two opposite sides of the parallelogram always remain parallel, the assembly seat 20 only translates but does not rotate relative to the connecting seat 10 during the process of rising or falling, so that the medical equipment installed on the assembly seat 20 will not rotate relative to the horizontal axis during the process of adjusting the height direction.

[0044] In one embodiment, the rod 60 is provided with a cable management groove. The cable management groove is used to accommodate cables. In this embodiment, the components can be reasonably utilized without adding a cable management structure, so that the structure of the support arm device 100 is relatively compact. Moreover, by providing a cable management groove to organize and store the cables, the cables can be avoided from being cluttered.

[0045] like Figure 2 and Figure 7 As shown, in one embodiment, the connection seat 10 includes a second seat body 11 and a pull rod connector 12, the second shaft member 50 is mounted on the second seat body 11, and the pull rod connector 12 is adjustably mounted on the second seat body 11 and can move toward and away from the second shaft member 50 within a first moving range along a first direction X during adjustment. The elastic component 32 includes a pull rod 321 and a spring rod component 322, the pull rod 321 includes a first end and a second end, the first end of the pull rod 321 is rotatably connected to the pull rod connector 12 around the fifth shaft member 70, the pull rod 321 can rotate toward and away from the second shaft member 50 within a first rotating range along a second direction Y, the second end of the pull rod 321 is rotatably connected to the spring rod component 322, the spring rod component 322 is mounted in the sleeve 31, and the spring rod component is used to provide a balancing force so that the spring tube 30 can support the weight of the medical device. In this embodiment, the pull rod connector 12 is arranged to be movable toward or away from the second axis member 50 within a first moving range through adjustment, and the position of the pull rod connector 12 relative to the second axis member 50 is adjusted, so that the support arm device 100 has balancing forces of different sizes and can balance and support medical equipment of different weights.

[0046] like Figure 2As shown, in one embodiment, a limiting portion 314 is provided in the sleeve 31, and the spring rod assembly 322 includes a spring 3221, a first slider 3222 and a spring rod 3223. The spring 3221 includes a first end and a second end. The first end of the spring 3221 faces the connecting seat 10 and abuts against the limiting portion 314. The spring rod 3223 is passed through the spring 3221. The pull rod 321 is rotatably connected to the spring rod 3223. The first slider 3222 is connected to the spring rod 3223 and abuts against the second end of the spring 3221. It should be noted that the first slider 3222 is connected to the spring rod 3223. The first slider 3222 can be directly connected to the spring rod 3223, or the first slider 3222 can be movably mounted on the spring rod 3223. A pre-tightening bolt is arranged on the side of the first slider 3222 facing away from the spring 3221. The pre-tightening bolt is threadably matched with the spring rod 3223. The pre-tightening bolt presses against the first slider 3222. The first slider 3222 remains relatively motionless relative to the spring rod 3223 under the clamping of the pre-tightening bolt and the spring 3221. The specific arrangement can be determined according to actual design requirements.

[0047] Generally, after the support arm device 100 leaves the factory, the first slider 3222 is configured to pre-compress the spring 3221 to a certain extent. The reaction force generated by the compression of the spring 3221 causes the pull rod 321 to apply a pulling force to the pull rod connector 12. The component of the pulling force in the vertical direction is used to support the medical device installed at the second end of the sleeve 31. When the user needs to install a heavier medical device at the second end of the sleeve 31, the user adjusts the pull rod connector 12 away from the second shaft 50, and the pull rod 321 pulls the spring rod 3223 to move toward the connecting seat 10. The spring rod 3223 drives the first slider 3222 to move toward the connecting seat 10. The moving first slider 3222 further compresses the spring 3221. The reaction force provided by the spring 3221 increases the pulling force of the pull rod 321 toward the pull rod connector 12. The increased pulling force increases the component of the force in the vertical direction, thereby supporting a heavier medical device. On the contrary, when the user adjusts the pull rod connecting member 12 to move toward the second shaft member 50, the weight of the medical device that can be supported by the support arm device 100 becomes smaller.

[0048] like Figure 2 As shown, in one embodiment, the first slider 3222 can slide in the sleeve 31 and abut against the inner side wall of the sleeve 31. In this embodiment, by setting the first slider 3222 to abut against the inner side wall of the sleeve 31, the first slider 3222 can play a role in positioning the spring rod 3223. It should be noted that the first slider 3222 can be set not to abut against the inner side wall of the sleeve 31, as long as the first slider 3222 can abut against the spring 3221, which can be determined according to actual design needs.

[0049] like Figure 2As shown, in one embodiment, the spring rod assembly 322 further includes a second slider 3224, which is located between the second end of the pull rod 321 and the limiting portion 314 and connected to the spring rod 3223. The second slider 3224 can slide in the sleeve 31 and abut against the inner side wall of the sleeve 31. Similarly, by setting the second slider 3224 to abut against the inner side wall of the sleeve 31, the second slider 3224 can play a role in positioning the spring rod 3223. It should be noted that the first slider 3222 cooperates with the second slider 3224 to position the spring rod 3223 at the central axis of the sleeve 31, that is, the spring rod 3223 can only move forward and backward along the central axis of the sleeve 31.

[0050] like Figure 7 and Figure 8 As shown, in one embodiment, the second shaft member 50 is provided with an avoidance structure F. When the pull rod connector 12 moves to the extreme position of the first movement range toward the second shaft member 50, the avoidance structure F can avoid at least a portion of the pull rod connector 12 to expand the movement range of the pull rod connector 12 toward the second shaft member 50.

[0051] In one embodiment, taking the application of the support arm device 100 in an operating room as an example, in a usage scenario, the support arm device 100 is directly or indirectly connected to the ceiling of the operating room through its connection seat 10, and the second end of the support arm device 100 is connected to medical devices such as surgical lights, displays, control boxes, and cameras through its assembly seat 20. The weights of medical devices such as surgical lights, displays, control boxes, and cameras are different. The user can adjust the position of the pull rod connector 12 relative to the second shaft member 50 according to the weight of the medical device to be installed so that the spring tube 30 has a supporting force that matches the medical device, and then install the medical device on the assembly seat 20. Of course, the medical device can also be installed on the assembly seat 20 first, and then the position of the pull rod connector 12 relative to the second shaft member 50 is adjusted according to the weight of the medical device so that the spring tube 30 has a supporting force that matches the medical device.

[0052] It should be noted that the closer the center line of the second shaft member 50 is to the center line of the fifth shaft member 70, the smaller the balancing force that the spring rod assembly 322 can form, and the support arm device 100 can support medical equipment with lighter weight. In the above embodiment, by providing an avoidance structure F on the second shaft member 50, the pull rod connector 12 can be further moved toward the second shaft member 50, so that the center line of the second shaft member 50 and the center line of the fifth shaft member 70 can be closer, so that the support arm device 100 can support medical equipment with lighter weight.

[0053] It should also be noted that the avoidance structure F is not limited to being used to avoid the pull rod connector 12. For example, in another embodiment, when the pull rod 321 rotates to the extreme position of the first rotation range toward the second shaft 50, the avoidance structure F can avoid at least part of the pull rod 321 to expand the rotation range of the pull rod 321 toward the second shaft 50. In this embodiment, the pull rod 321 has a larger rotation angle toward the second shaft 50, that is, the spring tube 30 has a larger rotation depression angle, which can facilitate the user to adjust, install and disassemble the medical device. In another embodiment, the avoidance structure F is not only used to avoid the pull rod connector 12 to expand the movement range of the pull rod connector 12 toward the second shaft 50, but also used to avoid the pull rod 321 to expand the rotation range of the pull rod 321 toward the second shaft 50.

[0054] In this embodiment, firstly, by setting the pull rod connector 12 to be movable toward or away from the second shaft member 50 along the first direction X, by adjusting the position of the pull rod connector 12 relative to the second shaft member 50, the support arm device 100 has different balancing forces, and can balance and support medical devices of different weights. Secondly, by setting the avoidance structure F on the second shaft member 50, the avoidance structure F can avoid at least part of the pull rod connector 12 and / or at least part of the pull rod 321. When the avoidance structure F is used to avoid at least part of the pull rod connector 12, the avoidance structure F allows the pull rod connector 12 to have a larger adjustment space in the direction toward the second shaft member 50, so that the support arm device 100 can be used to balance and support medical devices with smaller weights. That is, the support arm device 100 proposed in this embodiment is not only suitable for supporting medical devices of different weights, but also expands the load support range of the support arm device 100 as a whole. Users do not need to purchase different support arm devices 100 for medical devices of different weights, which saves costs for customers. When the avoidance structure F is used to avoid at least part of the pull rod 321, the avoidance structure F allows the pull rod 321 to have a larger rotation angle toward the second shaft 50, that is, the spring tube 30 has a larger rotation depression angle, which can facilitate users to adjust, install and disassemble the medical device.

[0055] like Figure 8 As shown, in one embodiment, the avoidance structure F includes a first groove 51 arranged on the second shaft member 50, and when the pull rod connector 12 moves to the extreme position of the first movement range toward the second shaft member 50, the first groove 51 can accommodate at least a portion of the pull rod connector 12, and / or, when the pull rod 321 rotates to the extreme position of the first rotation range toward the second shaft member 50, the first groove 51 can accommodate at least a portion of the pull rod 321.

[0056] like Figure 8As shown, in an embodiment, the first groove 51 includes a first groove bottom wall 511 and two first groove side walls 512 respectively arranged at both ends of the first groove bottom wall 511, the first groove bottom wall 511 is parallel to the extension direction of the second shaft member 50, the two first groove side walls 512 are spaced apart along the extension direction of the second shaft member 50, and the spacing between the two first groove side walls 512 is not less than the width of the corresponding part of the pull rod connector 12, when the pull rod connector 12 moves to the extreme position of the first moving range toward the second shaft member 50, at least part of the pull rod connector 12 can enter the space defined by the first groove bottom wall 511 and the two first groove side walls 512.

[0057] like Figure 8 As shown, in an embodiment, the avoidance structure F also includes a second groove 52 arranged on the second shaft member 50, the second groove 52 includes a second groove bottom wall 521 and two second groove side walls 522 respectively arranged at both ends of the second groove bottom wall 521, the second groove bottom wall 522 is parallel to the extension direction of the second shaft member 50, the second groove bottom wall 522 and the first groove bottom wall 512 are intersected and formed with an obtuse angle, the two second groove side walls 522 are spaced apart along the extension direction of the second shaft member 50, the spacing between the two second groove side walls 522 is not less than the width of the corresponding part of the pull rod 321, and when the pull rod 321 rotates to the extreme position of the first rotation range toward the second shaft member 50, at least part of the pull rod 321 can enter the space defined by the second groove bottom wall 521 and the two second groove side walls 522.

[0058] like Figure 7 and Figure 8 As shown, in one embodiment, the tie rod connector 12 moves toward and away from the second shaft member 50 along the first direction X during adjustment, and the first direction X is perpendicular to the first groove bottom wall 511. It should be noted that the first groove bottom wall 511 is not limited to being set perpendicular to the first direction X. In some other embodiments, the first groove bottom wall 511 can also be set at an acute angle or an obtuse angle with the first direction X, as long as the highest point of the first groove bottom wall 511 in the first direction X is lower than the highest point of the cylinder where the second shaft member 50 is located, so that the second shaft member 50 can avoid the tie rod connector 12.

[0059] In the above embodiment, the avoidance structure F includes both the first groove 51 and the second groove 52. The first groove 51 is used to avoid the pull rod connector 12, and the second groove 52 is used to avoid the pull rod 321, so that the pull rod connector 12 has a larger adjustment space in the direction toward the second shaft 50. The support arm device 100 can be used to balance and support medical equipment with a smaller weight, and the pull rod 321 has a larger rotation angle toward the second shaft 50, that is, the spring tube 30 has a larger rotation depression angle, which can facilitate users to adjust, install and disassemble the medical equipment. Specifically, as Fig. 9 and Fig.10 As shown, by providing the first groove 51 and the second groove 52, the pull rod connector 12 can be partially embedded in the first groove 51 when it moves toward the second shaft member 50 to the limit position, thereby achieving a larger movement range. Fig.10 It can be seen that the second groove 52 allows the pull rod 321 to tilt further downward, so that the spring tube 30 has a larger rotation depression angle.

[0060] It should be noted that, although the first groove 51 and the second groove 52 are provided at the same time in the embodiment of the present application, only the first groove 51 may be provided. Fig.11 As shown, or only the second groove 52 is provided, as Fig.12 It should be noted that when the highest point of the second groove 52 in the first direction X is lower than the highest point of the cylinder where the assembly end is located, the pull rod 321 and the pull rod connector 12 can be avoided.

[0061] like Fig.13 As shown, in one embodiment, a recessed portion 3211 is provided on one side of the pull rod 321 facing the second shaft member 50. When the pull rod 321 rotates to the limit position of the first rotation range toward the second shaft member 50, the recessed portion 3211 can avoid at least a portion of the second shaft member 50, so as to further expand the rotation range of the pull rod 321 toward the second shaft member 50. In this embodiment, the pull rod 321 has a larger rotation angle toward the second shaft member 50, that is, the spring arm 30 has a larger rotation depression angle, which can facilitate the user to adjust the medical device.

[0062] like Fig.13 As shown, in one embodiment, the pull rod 321 includes a matching section 3212, and the matching section 3212 is curved away from the second shaft member 50 to form a recessed portion 3211. It should be noted that the recessed portion 3211 is not limited to being formed in the above manner. For example, in another embodiment, the matching section 3212 is a straight section, and a recess is provided on one side of the matching end facing the second shaft member 50 to form the recessed portion 3211.

[0063] like Fig.14 As shown, in one embodiment, the tie rod connector 12 is provided with a third screw hole 121, and the connecting seat 10 also includes a second adjusting bolt 13 with an external thread, and the second adjusting bolt 13 is threadedly matched with the tie rod connector 12. By rotating the second adjusting bolt 13, the tie rod connector 12 can be driven to move toward or away from the second shaft 50 within the first moving range.

[0064] In one embodiment, a groove is provided at one end of the second adjusting bolt 13, and the groove can be but is not limited to a slotted groove, a cross groove, or a hexagonal groove. In this way, when the second adjusting bolt 13 needs to be rotated, the operator can insert a slotted screwdriver, a cross screwdriver, or a hexagonal wrench into the groove and rotate it to drive the second adjusting bolt 13 to rotate.

[0065] like Fig.14 As shown, in one embodiment, the tie rod connector 12 is provided with a guide hole 122, and the connecting seat 10 further includes a guide column 14, which is mounted on the second seat body 11 and penetrates the guide hole 122, so that the tie rod connector 12 can only move toward or away from the second shaft member 50. In this embodiment, the tie rod connector 12 is guided by providing the guide column 14, so that the tie rod connector 12 can move smoothly during the adjustment process.

[0066] like Fig.14 As shown, in one embodiment, the second adjusting bolt 13 is located between the guide column 14 and the pull rod 321. It can be understood that the spring arm 30 has a tendency to pull the pull rod connector 12 to rotate downward around the second shaft 50 due to its own weight plus the weight of the medical device, so that the inner side wall of the guide hole 122 will press the guide column 14, or the inner side wall of the third screw hole 121 will press the second adjusting bolt 13. When the inner side wall of the third screw hole 121 presses the second adjusting bolt 13, the operator needs a large operating force in the process of rotating the second adjusting bolt 13, and the adjustment is inconvenient. In this embodiment, by arranging the second adjusting bolt 13 between the guide column 14 and the pull rod 321, the outer side wall of the guide column 14 shares more pressure, and the outer side wall of the second adjusting bolt 13 shares less pressure, so that the operator is more labor-saving in the process of rotating the second adjusting bolt 13. Of course, it is also possible for the guide column 14 to be arranged between the second adjusting bolt 13 and the pull rod 321, which can be determined according to actual design needs.

[0067] The second shaft member 50 is non-rotatably mounted on the second base body 11 .

[0068] like Fig.15 and Fig.16As shown, in one embodiment, the second seat body 11 includes a second side plate 111 and a third side plate 112 arranged opposite to the second side plate 111, the second side plate 111 is provided with a first assembly hole 1111, the third side plate 112 is provided with a second assembly hole 1121, the second shaft member 50 includes a first assembly end 53 and a second assembly end 54, the first assembly end 53 is passed through the first assembly hole 1111, the second assembly end 54 is passed through the second assembly hole 1121, the cross-sectional shape of the first assembly end 53 is non-circular, the shape of the first assembly hole 1111 is adapted to the cross-sectional shape of the first assembly end 53, and the second side plate 111 limits the rotation of the first assembly end 53, so that the second shaft member 50 cannot rotate relative to the second seat body 11. In this embodiment, when limiting the rotation of the second shaft member 50 relative to the second seat body 11, it can be achieved through structural design on the components, without the need to add other components, which has the effect of simplifying the mechanism and facilitating assembly.

[0069] It should be noted that the second shaft member 50 is not limited to the above-mentioned embodiment to limit the rotation of the second shaft member 50 relative to the second seat body 11. For example, in another embodiment, the cross-sectional shape of the second assembly end 54 is non-circular, the shape of the second assembly hole 1121 is matched with the cross-sectional shape of the second assembly end 54, and the third side plate 112 limits the rotation of the second assembly end 54, so that the second shaft member 50 cannot rotate relative to the second seat body 11. That is, in this embodiment, the cross-sectional shape of the second assembly end 54 is set to be non-circular, and the shape of the second assembly hole 1121 is matched with the cross-sectional shape of the second assembly end 54, so as to limit the rotation of the second shaft member 50 relative to the second seat body 11.

[0070] In another embodiment, the cross-sectional shape of the first assembly end 53 and the cross-sectional shape of the second assembly end 54 may both be non-circular, so as to limit the rotation of the second shaft member 50 relative to the second seat body 11 .

[0071] like Fig.15 As shown, in one embodiment, the cross-sectional shape of the first assembly end 53 is D-shaped, and the cross-sectional shape of the second assembly end 54 is circular. It should be noted that the D-shape includes a plane segment and an arc segment, and the first assembly end 53 is non-rotationally matched with the second side plate 111 through the straight plane segment, and is rotationally matched with the second ear portion 313 through the arc segment. Of course, the cross-sectional shape of the first assembly end 53 is not limited to being set as a D-shape, and can be an ellipse, a triangle with rounded corners, a rectangle with rounded corners, or other shapes, as long as the first assembly end 53 and the first assembly hole 1111 cooperate to limit the second shaft member 50 from rotating relative to the second seat body 11.

[0072] In addition, as mentioned above, the cross-sectional shape of the second assembly end 54 can be set to be non-circular, and the shape of the second assembly hole 1121 can be adapted to the cross-sectional shape of the second assembly end 54 to limit the rotation of the second shaft member 50 relative to the first seat body 21. Therefore, in another embodiment, the cross-sectional shape of the first assembly end 53 and the cross-sectional shape of the second assembly end 54 can be swapped, that is, the cross-sectional shape of the first assembly end 53 is circular, and the cross-sectional shape of the second assembly end 54 is D-shaped.

[0073] In one embodiment, the cross-sectional shape of at least one of the first assembly end 53 and the second assembly end 54 is non-circular, and includes an arc segment that rotatably cooperates with the second ear portion 313. For example, the cross-sectional profile of the first assembly end 53 includes an arc segment that is larger than half of an arc, or includes two arc segments that are arranged opposite to each other, or includes a plurality of arc segments that are arranged at intervals, so that the first assembly end 53 and the first assembly hole 1111 cooperate to limit the second shaft member 50 from rotating relative to the second seat body 11, and the first assembly end 53 and the second ear portion 313 form a rotational fit.

[0074] The embodiment of the present invention further provides a medical device, which includes a medical device and the above-mentioned support arm device 100, and the medical device is installed on the assembly seat 20. Optionally, the medical device is at least one of a surgical lamp, a display, a control box and a camera.

[0075] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A support arm device for supporting medical equipment, characterized in that: The support arm device comprises a connecting seat, an assembly seat and a spring tube, wherein the spring tube comprises a sleeve and an elastic component, and the sleeve comprises a tube body, a first ear portion and a second ear portion; The first ear is disposed at one end of the tube body and is rotatably connected to the assembly seat around a first shaft, the first ear is divided into a first extension section and a second extension section by the first shaft, and the first extension section is connected to the tube body; The second ear portion is disposed at the other end of the tube body and is rotatably connected to the connecting seat around the second shaft member, the second ear portion is divided into a third extension section and a fourth extension section by the second shaft member, and the third extension section is connected to the tube body; The elastic component is connected to the sleeve and the connecting seat, the assembly seat is used to connect the medical device, and the elastic component is used to provide a balancing force so that the spring tube can support the weight of the medical device; Wherein, the connecting seat and / or the assembly seat is provided with at least one limiting hole, and the limiting hole is used to insert a cylindrical tool. The limiting hole is exposed when the spring tube is tilted and rotated downward to a preset angle relative to the connecting seat. The cylindrical tool is inserted into the limiting hole and abuts against the top side of the second extension segment or the bottom side of the fourth extension segment to limit the spring tube from rotating upward around the second axis.

2. The support arm device according to claim 1, characterized in that: The assembly seat comprises: a first seat body, wherein the first ear portion is rotatably connected to the first seat body; A limit member is arranged on the top side of the first ear portion and is adjustably mounted on the first seat body on the rotation path of the second extension section. The limit member is used to limit the second extension section from rotating upward around the first axis, and the limit hole is located below the limit member.

3. The support arm device according to claim 2, characterized in that: The limiting member includes a first position closest to the limiting hole. When the limiting member is located at the first position, the spring tube remains horizontal under the restriction of the limiting member.

4. The support arm device according to claim 2, characterized in that: The first seat body comprises two first side plates which are spaced apart from each other, and the limiting member is adjustably mounted on the two first side plates; The assembly seat also includes an adjusting rod and a first adjusting bolt. The adjusting rod can be rotatably installed between the two first side plates. The adjusting rod is provided with a first screw hole or a hole in the radial direction. The limiting member is provided with a second screw hole. The first adjusting bolt cooperates with the first screw hole or the hole and the second screw hole. By rotating the first adjusting bolt, the limiting member can be driven to adjust on the rotation path of the second extension section.

5. The support arm device according to claim 4, characterized in that: The two first side plates are provided with adjustment grooves, and the two ends of the limiter are respectively passed through the adjustment grooves of the two first side plates and can be adjusted along the adjustment grooves.

6. The support arm device according to claim 5, characterized in that: The adjusting slot comprises a first end and a second end, the first end is higher than the second end, and the height of the limiting hole is lower than the second end.

7. The support arm device according to claim 5, characterized in that: The adjustment groove is in an arc shape with the first shaft member as the center.

8. The support arm device according to claim 1, characterized in that: The support arm device also includes a rod, which includes a first end and a second end. The first end of the rod is rotatably connected to the connecting seat around a third axis, and the second end of the rod is rotatably connected to the assembly seat around a fourth axis. The sleeve, the rod, the connecting seat and the assembly seat are combined to form a parallelogram four-bar linkage.

9. The support arm device according to claim 8, characterized in that: The rod is provided with a wire management groove.

10. The support arm device according to claim 1, characterized in that: The connecting seat comprises a second seat body and a pull rod connecting member, the second shaft member is mounted on the second seat body, and the pull rod connecting member is adjustably mounted on the second seat body and can move toward and away from the second shaft member within a first moving range when adjusted; The elastic force component includes a pull rod and a spring rod assembly, the pull rod includes a first end and a second end, the first end of the pull rod is rotatably connected to the pull rod connecting member around a fifth axis, the pull rod can be rotated toward and away from the second axis within a first rotation range, the second end of the pull rod is rotatably connected to the spring rod assembly, the spring rod assembly is installed in the sleeve, and the spring rod assembly is used to provide a balancing force so that the spring tube can support the weight of the medical device.

11. The support arm device according to claim 10, characterized in that: The second shaft member is provided with an avoidance structure, and when the pull rod connecting member moves to the limit position of the first movement range toward the second shaft member, the avoidance structure can avoid at least part of the pull rod connecting member to expand the movement range of the pull rod connecting member toward the second shaft member; And / or, when the pull rod rotates to the limit position of the first rotation range toward the second shaft, the avoidance structure can avoid at least a portion of the pull rod to expand the rotation range of the pull rod toward the second shaft.

12. The support arm device according to claim 11, characterized in that: The avoidance structure includes a first groove arranged on the second shaft member, and when the pull rod connecting member moves to the extreme position of the first movement range toward the second shaft member, the first groove can accommodate at least a portion of the pull rod connecting member, and / or when the pull rod rotates to the extreme position of the first rotation range toward the second shaft member, the first groove can accommodate at least a portion of the pull rod.

13. The support arm device according to claim 12, characterized in that: The first groove includes a first groove bottom wall and two first groove side walls respectively arranged at both ends of the first groove bottom wall, the first groove bottom wall is parallel to the extension direction of the second shaft member, the two first groove side walls are spaced apart along the extension direction of the second shaft member, the spacing between the two first groove side walls is not less than the width of the corresponding part of the pull rod connecting member, when the pull rod connecting member moves to the extreme position of the first moving range toward the second shaft member, at least part of the pull rod connecting member can enter the space defined by the first groove bottom wall and the two first groove side walls.

14. The support arm device according to claim 13, characterized in that: The avoidance structure also includes a second groove arranged on the second shaft member, the second groove includes a second groove bottom wall and two second groove side walls respectively arranged at both ends of the second groove bottom wall, the second groove bottom wall is parallel to the extension direction of the second shaft member, the second groove bottom wall and the first groove bottom wall are intersected and formed with an obtuse angle, the two second groove side walls are spaced apart along the extension direction of the second shaft member, the spacing between the two second groove side walls is not less than the width of the corresponding part of the pull rod, and when the pull rod is rotated to the extreme position of the first rotation range toward the second shaft member, at least part of the pull rod can enter the space defined by the second groove bottom wall and the two second groove side walls.

15. The support arm device according to claim 13 or 14, characterized in that: The tie rod connector moves toward and away from the second shaft member along a first direction during adjustment, and the first direction is perpendicular to the bottom wall of the first slot.

16. The support arm device according to claim 11 or 14, characterized in that: A recessed portion is provided on one side of the pull rod toward the second shaft member. When the pull rod rotates to the limit position of the first rotation range toward the second shaft member, the recessed portion can avoid at least a portion of the second shaft member to further expand the rotation range of the pull rod toward the second shaft member.

17. The support arm device according to claim 16, characterized in that: The pull rod comprises a matching section, and the matching section is curved away from the second shaft member to form the recessed portion.

18. The support arm device according to claim 10, characterized in that: The tie rod connector is provided with a third screw hole, and the connecting seat also includes a second adjusting bolt, which is threadedly engaged with the tie rod connector. By rotating the second adjusting bolt, the tie rod connector can be driven to move toward or away from the second shaft within the first moving range.

19. The support arm device according to claim 18, characterized in that: The pull rod connector is provided with a guide hole, and the connecting seat further comprises a guide column, which is mounted on the second seat body and penetrates the guide hole, so that the pull rod connector can only move toward or away from the second shaft.

20. The support arm device according to claim 19, characterized in that: The second adjusting bolt is located between the guide column and the pull rod.

21. The support arm device according to claim 1, characterized in that: The second shaft is non-rotatably mounted on the second seat.

22. The support arm device according to claim 21, characterized in that The second seat body includes a second side plate and a third side plate arranged opposite to the second side plate, the second side plate is provided with a first assembly hole, the third side plate is provided with a second assembly hole, the second shaft member includes a first assembly end and a second assembly end, the first assembly end is passed through the first assembly hole, the second assembly end is passed through the second assembly hole, the cross-sectional shape of the first assembly end is non-circular, the shape of the first assembly hole is adapted to the cross-sectional shape of the first assembly end, and the second side plate limits the rotation of the first assembly end so that the second shaft member cannot rotate relative to the second seat body; and / or, The seat body includes a second side plate and a third side plate arranged opposite to the second side plate, the second side plate is provided with a first assembly hole, the third side plate is provided with a second assembly hole, the second shaft member includes a first assembly end and a second assembly end, the first assembly end is passed through the first assembly hole, the second assembly end is passed through the second assembly hole, the cross-sectional shape of the second assembly end is non-circular, the shape of the second assembly hole is adapted to the cross-sectional shape of the second assembly end, and the third side plate limits the rotation of the second assembly end so that the second shaft member cannot rotate relative to the second seat body.

23. The support arm device according to claim 22, characterized in that: A cross-sectional shape of one of the first assembly end and the second assembly end is D-shaped, and a cross-sectional shape of the other of the first assembly end and the second assembly end is circular.

24. The support arm device according to claim 22, characterized in that: The cross-sectional shape of at least one of the first assembly end and the second assembly end is non-circular, and includes an arc segment that is rotationally matched with the second ear portion.

25. The support arm device according to claim 10, characterized in that: A limiting portion is provided in the sleeve, and the spring rod assembly includes a spring, a first slider and a spring rod. The spring includes a first end and a second end. The first end of the spring faces the connecting seat and abuts the limiting portion. The spring rod is passed through the spring. The pull rod is rotatably connected to the spring rod. The first slider is connected to the spring rod and abuts the second end of the spring.

26. The support arm device according to claim 25, characterized in that: The first sliding block can slide in the sleeve and abut against the inner wall of the sleeve.

27. The support arm device according to claim 26, characterized in that The spring rod assembly also includes a second slider, which is located between the second end of the pull rod and the limiting portion and connected to the spring rod. The second slider can slide in the sleeve and abut against the inner wall of the sleeve.

28. A medical device, characterized in that: include: Medical devices; The support arm device according to any one of claims 1 to 27; Wherein, the medical device is installed on the assembly seat.

29. The medical device according to claim 28, characterized in that The medical device is at least one of an operating light, a display, a control box and a camera.

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