Support arm device and medical device

Abstract

The invention discloses a supporting arm device and a medical device, the supporting arm device comprises a connecting seat and a bourdon tube, and the bourdon tube is connected with the connecting seat and is used for providing balance force to support the weight of medical equipment. The connecting base comprises a first base body, a pull rod connecting piece and a first adjusting piece, the pull rod connecting piece and the first adjusting piece are installed on the first base body, the pull rod connecting piece is connected with the spring tube, the first adjusting piece is in threaded fit with the pull rod connecting piece, and the pull rod connecting piece can be driven to move linearly by rotating and adjusting the first adjusting piece so as to adjust the balance force of the spring tube. The connecting base further comprises a first rotation stopping part and a second rotation stopping part, the first rotation stopping part is arranged on the first adjusting piece, the second rotation stopping part is arranged on the first base body, and the second rotation stopping part is matched with the first rotation stopping part in a locking mode so as to limit the first adjusting piece to rotate relative to the first base body. And the tool unlocks the matching between the first rotation stopping part and the second rotation stopping part at the same time.

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, including a connecting seat, a spring tube and an assembly seat. The connecting seat is used to be installed on the ceiling of the operating room, the assembly seat is used to connect medical equipment such as surgical lights, monitors and cameras, and the spring tube is connected between the support seat and the assembly seat. The spring tube is used to provide a balancing force to support the weight of the medical equipment. Since surgical lights, monitors and cameras are different products with different weights, or the same product has different designs and different weights, in order to support medical equipment of different weights, the current method adopted in the industry is to set a rotatable adjustment part on the connecting seat, and adjust the balancing force of the spring tube by rotating the adjustment part. In this way, a support arm device can be used to support a variety of medical equipment of different weights. However, this implementation has certain safety hazards. During the use of the support arm device, under the condition that the adjustment part is not manually adjusted, the adjustment part may rotate autonomously, causing the balancing force of the spring tube to change. The support arm device cannot support the weight of the medical equipment and swings down to injure patients or medical staff. 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, and the support arm device includes a connecting seat and a spring tube, wherein the spring tube is connected to the connecting seat and is used to provide a balancing force to support the weight of the medical equipment;

[0005] The connecting seat comprises a first seat body, and a tie rod connecting piece and a first adjusting piece installed on the first seat body, wherein the tie rod connecting piece is connected to the spring tube, and the first adjusting piece is threadedly matched with the tie rod connecting piece, and the tie rod connecting piece can be driven to move linearly by rotating and adjusting the first adjusting piece to adjust the balancing force of the spring tube;

[0006] In which, the connecting seat also includes a first stop portion and a second stop portion, the first stop portion is arranged on the first adjusting member, and the second stop portion is arranged on the first seat body, and the second stop portion is used to lock and cooperate with the first stop portion to limit the first adjusting member from rotating relative to the first seat body, and when a tool is inserted into the first adjusting member to adjust the first adjusting member, the tool simultaneously unlocks the cooperation between the first stop portion and the second stop portion.

[0007] The medical device provided in the second aspect of the present invention comprises:

[0008] Medical devices;

[0009] The support arm device described above;

[0010] Wherein, the medical device is installed on the spring tube.

[0011] It can be seen from the above technical solutions that the support arm device proposed in the first aspect of the present invention, firstly, by providing a first anti-rotation portion on the first adjusting member and a second anti-rotation portion on the first seat body, the second anti-rotation portion can be locked and matched with the first anti-rotation portion to limit the first adjusting member from rotating relative to the first seat body. With this embodiment, it is possible to avoid the first adjusting member from rotating autonomously under non-manual adjustment conditions, resulting in abnormal bearing function of the support arm device, and reduce the risk of medical accidents. Secondly, when a tool is used to insert the first adjusting member to adjust the first adjusting member, the tool simultaneously unlocks the cooperation between the first anti-rotation portion and the second anti-rotation portion, that is, adjustment and unlocking are achieved in one step, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 is a schematic structural diagram of a first state of a support arm device provided in an embodiment of the present invention;

[0014] 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;

[0015] Figure 3 It is a schematic diagram of the matching of the sleeve connector, the pull rod connector, the first adjusting member and the pull rod provided in one embodiment of the present invention;

[0016] Figure 4 is a schematic structural diagram of a first adjusting member provided in an embodiment of the present invention;

[0017] Figure 5 It is a schematic structural diagram of a spring pin proposed in one embodiment of the present invention;

[0018] Figure 6 is a schematic cross-sectional view of a partial structure of a support arm device provided in one embodiment of the present invention;

[0019] Figure 7 yes Figure 4 A schematic diagram of the structure shown along the G direction;

[0020] Figure 8 is a schematic structural diagram of a sleeve provided in one embodiment of the present invention;

[0021] Fig. 9 is a schematic diagram of the second state structure of the support arm device proposed in one embodiment of the present invention;

[0022] Fig.10 is a schematic structural diagram of a connecting socket from a first perspective according to an embodiment of the present invention;

[0023] Fig.11 is a structural schematic diagram of a connecting socket provided in an embodiment of the present invention from a second viewing angle;

[0024] Fig.12 It is a structural schematic diagram of an assembly seat proposed in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 5 As shown, an embodiment of the present invention provides a support arm device 100 for supporting medical equipment. The support arm device 100 includes a connection seat 10 and a spring tube 20. The spring tube 20 is connected to the connection seat 10 and is used to provide a balancing force to support the weight of the medical equipment. The connection seat 10 includes a first seat body 11, and a pull rod connector 13 and a first adjusting member 14 installed on the first seat body 11. The pull rod connector 13 is connected to the spring tube 20. The first adjusting member 14 is threadedly matched with the pull rod connector 13. By rotating the first adjusting member 14, the pull rod connector 13 can be driven to move linearly along the first direction X to adjust the balancing force of the spring tube 20. The first adjusting member 14 can be, but is not limited to, a bolt.

[0027] Among them, the connecting seat 10 also includes a first stop portion 15 and a second stop portion 16. The first stop portion 15 is arranged on the first adjusting member 14, and the second stop portion 16 is arranged on the first seat body 11. The second stop portion 16 is used to lock and cooperate with the first stop portion 15 to limit the first adjusting member 14 from rotating relative to the first seat body 11. When a tool is inserted into the first adjusting member 14 to adjust the first adjusting member 14, the tool simultaneously unlocks the cooperation between the first stop portion 15 and the second stop portion 16.

[0028] The support arm device 100 proposed in the embodiment of the present invention, firstly, by providing a first anti-rotation portion 15 on the first adjustment member 14 and a second anti-rotation portion 16 on the first seat body 11, the second anti-rotation portion 16 can be locked with the first anti-rotation portion 15 to limit the rotation of the first adjustment member 14 relative to the first seat body 11. With this embodiment, it is possible to avoid the situation where the first adjustment member 14 rotates autonomously under non-manual adjustment conditions, resulting in abnormal bearing function of the support arm device 100, and the risk of medical accidents can be reduced. Secondly, when a tool is used to insert the first adjustment member 14 to adjust the first adjustment member 14, the tool simultaneously unlocks the cooperation between the first anti-rotation portion 15 and the second anti-rotation portion 16, that is, adjustment and unlocking are achieved in one step, which improves the convenience of operation.

[0029] like Figures 1 to 3 As shown, in one embodiment, the connection seat 10 further includes a sleeve connector 12 mounted on the first seat body 11, and the first adjusting member 14 can be rotated to drive the rod connector 13 to move linearly toward or away from the sleeve connector 12 in the first moving range along the first direction X. The spring tube 20 includes a sleeve 21 and an elastic component 22, the sleeve 21 includes a first end and a second end, and the first end of the sleeve 21 is rotatably connected to the sleeve connector 12 around the first axis L1. The elastic component 22 includes a pull rod 221 and a spring rod component 222, the pull rod 221 includes a first end and a second end, the first end of the pull rod 221 is rotatably connected to the first adjusting member 14 around the second axis L2, the pull rod 221 can rotate toward and away from the sleeve connector 12 in the first rotating range along the second direction Y, and the second end of the pull rod 221 is rotatably connected to the spring rod component 222, the spring rod component 222 is installed in the sleeve 21, and the spring rod component 222 is used to provide a balancing force so that the support arm device 100 can support the weight of the medical device. In this embodiment, by adjusting the position of the pull rod connector 13 relative to the sleeve connector 12, the support arm device 100 has different sizes of balancing forces, which can balance and support medical devices of different weights. Users do not need to purchase different support arm devices 100 for medical devices of different weights, thereby saving costs for customers.

[0030] like Figure 2As shown, in one embodiment, a limiting portion 211 is provided in the sleeve 21, and the spring rod assembly 222 includes a spring 2221, a first slider 2222 and a spring rod 2223. The spring 2221 includes a first end and a second end. The first end of the spring 2221 faces the connecting seat 10 and abuts against the limiting portion 211. The spring rod 2223 is penetrated by the spring 2221. The pull rod 221 is rotatably connected to the spring rod 2223. The first slider 2222 is connected to the spring rod 2223 and abuts against the second end of the spring 2221. It should be noted that the first slider 2222 is connected to the spring rod 2223. The first slider 2222 can be directly connected to the spring rod 2223, or the first slider 2222 can be movably mounted on the spring rod 2223. A pre-tightening bolt is arranged on the side of the first slider 2222 facing away from the spring 2221. The pre-tightening bolt is threadably matched with the spring rod 2223. The pre-tightening bolt presses against the first slider 2222. The first slider 2222 remains relatively motionless relative to the spring rod 2223 under the clamping of the pre-tightening bolt and the spring 2221. The specific arrangement can be determined according to actual design requirements.

[0031] After the support arm device 100 leaves the factory, the first slider 2222 is set to have a certain amount of pre-compression on the spring 2221. The reaction force generated by the compression of the spring 2221 causes the pull rod 221 to apply a pulling force to the pull rod connector 13. The component of the pulling force in the vertical direction acts on the sleeve 21 to support the weight of the medical device. When the user needs to install a heavier medical device, the user adjusts the pull rod connector 13 away from the sleeve connector 12, and the pull rod 221 pulls the spring rod 2223 to move toward the connecting seat 10. The spring rod 2223 drives the first slider 2222 to move toward the connecting seat 10. The moving first slider 2222 further compresses the spring 2221. The reaction force provided by the spring 2221 increases the pulling force of the pull rod 221 toward the pull rod connector 13. 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 connection member 13 to move toward the sleeve connection member 12, the weight of the medical device that can be supported by the support arm device 100 becomes smaller.

[0032] like Figure 2 As shown, in one embodiment, the first slider 2222 can slide in the sleeve 21 and abut against the inner side wall of the sleeve 21. In this embodiment, by setting the first slider 2222 to abut against the inner side wall of the sleeve 21, the first slider 2222 can play a role in positioning the spring rod 2223. It should be noted that the first slider 2222 can be set not to abut against the inner side wall of the sleeve 21, as long as the first slider 2222 can abut against the spring 2221, which can be determined according to actual design needs.

[0033] like Figure 2As shown, in one embodiment, the spring rod assembly 222 further includes a second slider 2224, which is located between the second end of the pull rod 221 and the limiting portion 211 and connected to the spring rod 2223. The second slider 2224 can slide in the sleeve 21 and abut against the inner side wall of the sleeve 21. Similarly, by setting the second slider 2224 to abut against the inner side wall of the sleeve 21, the second slider 2224 can play a role in positioning the spring rod 2223. It should be noted that the first slider 2222 cooperates with the second slider 2224 to position the spring rod 2223 at the central axis of the sleeve 21, that is, the spring rod 2223 can only move forward and backward along the central axis of the sleeve 21.

[0034] like Figure 1 As shown, in one embodiment, the support arm device 100 further includes a rod 40, the rod 40 includes a first end and a second end, the first end of the rod 40 is rotatably connected to the connecting seat 10 around the fourth axis L4, the second end of the rod 40 is rotatably connected to the assembly seat 30 around the fifth axis L5, and the sleeve 21, the rod 40, the connecting seat 10 and the assembly seat 30 are combined to form a parallelogram four-bar linkage. Specifically, on a plane perpendicular to the first axis L1, the sleeve 21, the rod 40, the line connecting the first axis L1 and the fourth axis L4, and the line connecting the third axis L3 and the fifth axis L5 are combined to form a parallelogram four-bar linkage. In this embodiment, a parallelogram four-bar linkage is formed by combining the sleeve 21, the rod 40, the connecting seat 10 and the assembly seat 30. According to the principle that the two opposite sides of the parallelogram always remain parallel, the assembly seat 30 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 30 will not rotate relative to the horizontal axis during the process of adjusting the height direction.

[0035] In one embodiment, the rod 40 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 the need to add 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.

[0036] like Figure 4 and Figure 5As shown, in one embodiment, the first anti-rotation part 15 includes a slot 151, and the second anti-rotation part 16 includes an anti-rotation part 161 that is elastically retractable along the radial direction of the first adjusting member 14. When the first adjusting member 14 is rotated to make the anti-rotation part 161 opposite to the slot 151, the anti-rotation part 161 is partially embedded in the slot 151 to limit the first adjusting member 14 from rotating relative to the first seat body 11. In a specific application scenario, when the position of the pull rod connector 13 needs to be adjusted, the first adjusting member 14 can be directly driven to rotate, and the reaction force applied by the first adjusting member 14 to the anti-rotation part 161 overcomes the elastic force applied to the anti-rotation part 161, and the anti-rotation part 161 withdraws from the slot 151. When the first adjusting member 14 completes the adjustment, the first adjusting member 14 is rotated until the slot 151 is opposite to the anti-rotation part 161, and the anti-rotation part 161 is partially embedded in the slot 151 under the action of the elastic force to limit the first adjusting member 14 from rotating relative to the first seat body 11.

[0037] like Figure 5 As shown, in one embodiment, the second anti-rotation part 16 is an elastic plunger. Specifically, the elastic plunger includes a shell 162, an elastic member 163 and the anti-rotation member 161, the shell 162 has an inner cavity 1621 and an opening 1622 connected to the inner cavity 1621, the anti-rotation member 161 includes a first end and a second end, the first end of the anti-rotation member 161 is movably arranged in the inner cavity 1621, the size of the first end of the anti-rotation member 161 is larger than the size of the opening 1622, so that the first end of the anti-rotation member 161 cannot escape from the opening 1622, the second end of the anti-rotation member 161 passes through the opening 1622 and is exposed outside the shell 162, and the elastic member is arranged between the bottom wall of the inner cavity 1621 and the anti-rotation member 161. The elastic member 163 can be but is not limited to a compression spring, a torsion spring, a spiral spring, a spring sheet, an elastic arm, and any other component that can undergo elastic deformation under force and can elastically recover when the external force is removed. The present application is not limited thereto. In other embodiments of the present application, the anti-rotation member 161 may be partially embedded in the slot 151 manually to limit the first adjustment member 14 from rotating relative to the first seat body 11 .

[0038] It should be noted that the second stopper 16 is not limited to being set as an elastic plunger. For example, in another embodiment, the second stopper 16 only includes a stopper 161 and an elastic member 163. The first seat body 11 is provided with the inner cavity 1621 and the opening 1622. One end of the stopper 161 is restricted in the inner cavity 1621 and is movable in the inner cavity 1621. The other end of the stopper 161 passes through the opening 1622 to expose the outside of the shell 162. The elastic member is arranged between the bottom wall of the inner cavity 1621 and the stopper 161.

[0039] In one embodiment, the number of the slots 151 is at least two, and the at least two slots 151 are evenly spaced along the circumference of the first adjusting member 14. It can be understood that when the number of the slots 151 is greater, the first adjusting member 14 only needs to rotate a smaller angle to achieve the locking member 161 being inserted into the slots 151, that is, the distance that the pull rod connector 13 moves in the axial direction of the first adjusting member 14 is smaller, so that the support capacity of the support arm device 100 is less affected.

[0040] like Figure 4 As shown, in one embodiment, the number of the slots 151 is three, and the three slots 151 are evenly spaced along the circumference of the first adjusting member 14. Of course, the number of the slots 151 is not limited to three, and may be two, four, or more than four, depending on actual design requirements.

[0041] In one embodiment, the number of the elastic plungers is three, and the three elastic plungers are evenly spaced along the circumference of the first adjusting member 14. Of course, the number of the elastic plungers is not limited to three, and may be one, two, four, or more than four, as long as the elastic plungers can be partially embedded in the slots 151 to limit the first adjusting member 14 from rotating relative to the first seat body 11, and the specific number may be determined according to actual design requirements.

[0042] like Figure 4 and Figure 6 As shown, in one embodiment, one end of the first adjusting member 14 is provided with an adjusting hole 141 extending in the axial direction, and the adjusting hole 141 is used to insert a cylindrical tool 200 that drives the first adjusting member 14 to rotate, and the clamping groove 151 is connected to the adjusting hole 141. When the stopper 161 is embedded in the clamping groove 151, the stopper 161 partially extends into the adjusting hole 141, and the cylindrical tool 200 can be driven to exit the adjusting hole 141 when it is inserted into the adjusting hole 141. In this embodiment, when the cylindrical tool 200 is inserted into the adjusting hole 141, the stopper 161 can be driven to exit the adjusting hole 141. In this way, when the cylindrical tool 200 is inserted into the adjusting hole 141 to adjust the first adjusting member 14, the unlocking of the first adjusting member 14 can be achieved at the same time, that is, the adjustment and unlocking are achieved in one step, so that it is more labor-saving when driving the first adjusting member 14 to rotate. It should be noted that the stopper 161 partially extends into the adjusting hole 141, which has a good limiting effect when limiting the rotation of the first adjusting member 14. Of course, in some other embodiments, the stop member 161 may also be configured not to extend into the adjustment hole 141 . For example, in one embodiment, the slot 151 is a recessed portion of the outer wall of the first adjustment member 14 , and the slot 151 is not connected to the adjustment hole 141 .

[0043] like Figure 4 and Figure 5As shown, in one embodiment, the stopper 161 includes a shaft section 1611 and a ball head 1612 connected to the end of the shaft section 1611. When the stopper 161 is inserted into the slot 151, the ball head 1612 and a portion of the shaft section 1611 extend into the adjustment hole 141. In this embodiment, the stopper 161 extends a larger portion of the adjustment hole 141, and the stopper 161 has a greater resistance to the rotation of the first adjustment member 14, and has a better limiting effect when limiting the rotation of the first adjustment member 14.

[0044] It should be noted that the present invention is not limited to the above-mentioned implementation mode. For example, in another embodiment, when the anti-rotation member 161 is inserted into the slot 151 , only the ball head 1612 extends into the adjustment hole 141 .

[0045] like Figure 4 and Figure 6 As shown, in one embodiment, the adjustment hole 141 is a hexagonal hole, and the cylindrical tool 200 is a hexagonal wrench. Of course, the adjustment hole 141 is not limited to a hexagonal hole, and can also be a hole in a triangular, rectangular, elliptical or other shapes. Correspondingly, the cylindrical tool 200 can be a cylindrical tool 200 with a triangular cross section, a cylindrical tool 200 with a rectangular cross section, a cylindrical tool 200 with an elliptical cross section, or a cylindrical tool 200 with a cross section of any other shape, as long as the cross section of the cylindrical tool 200 is compatible with the shape of the adjustment hole 141.

[0046] like Figure 4 As shown, in one embodiment, the first adjusting member 14 includes a first matching segment 142 and a second matching segment 143 connected to the first matching segment 142, the diameter of the second matching segment 143 is smaller than the diameter of the first matching segment 142, the adjusting hole 141 passes through the second matching segment 143 and part of the first matching segment 142, the first matching segment 142 is provided with an external thread, and the clamping groove 151 is provided in the second matching segment 143. Of course, it is not limited to the above-mentioned embodiments, for example, in some other embodiments, the first adjusting member 14 only includes the first matching segment 142, and the clamping groove 151 is also provided in the first matching segment 142.

[0047] like Figure 4 and 7As shown, in one embodiment, the slot 151 includes a first side wall 1511 and a second side wall 1512 opposite to the first side wall 1511 in the circumferential direction of the first adjusting member 14, and the distance between the first side wall 1511 and the second side wall 1512 gradually increases from the inner side wall of the adjusting hole 141 toward the outer side wall of the first adjusting member 14. In this embodiment, the first side wall 1511 and / or the second side wall 1512 are inclined surfaces. In the process of the cylindrical tool 200 driving the first adjusting member 14 to rotate, the force applied by the first side wall 1511 and / or the second side wall 1512 on the stopper 161 has a component force radially outward along the first adjusting member 14, so that the stopper 161 is easier to withdraw from the first adjusting member 14, so that the resistance encountered by the first adjusting member 14 when rotating is smaller, and the rotation of the first adjusting member 14 is more labor-saving. Optionally, the first side wall 1511 and the second side wall 1512 are both inclined surfaces set at an angle to the radial direction of the first adjusting member 14.

[0048] like Figure 6 As shown, in one embodiment, the tie rod connector 13 is provided with a guide hole 132, and the connecting seat 10 further includes a guide column 17, which is mounted on the first seat body 11 and penetrates the guide hole 132 to guide the movement of the tie rod connector 13. In this embodiment, the tie rod connector 13 is guided by providing the guide column 17, so that the tie rod connector 13 can move smoothly during the adjustment process.

[0049] like Figure 6 As shown, in one embodiment, the first adjusting member 14 is located between the guide column 17 and the pull rod 221. It can be understood that the spring tube 20 has a tendency to pull the pull rod connector 13 to rotate downward around the first axis L1 due to its own weight plus the weight of the medical device, so that the inner wall of the guide hole 132 will press the guide column 17, or the inner wall of the threaded hole 131 will press the first adjusting member 14. When the inner wall of the threaded hole 131 presses the first adjusting member 14, the operator needs a large operating force in the process of rotating the first adjusting member 14, and the adjustment is inconvenient. In this embodiment, by arranging the first adjusting member 14 between the guide column 17 and the pull rod 221, the outer wall of the guide column 17 shares more pressure, and the outer wall of the first adjusting member 14 shares less pressure, so that the operator is more labor-saving in the process of rotating the first adjusting member 14. Of course, it is also possible for the guide column 17 to be arranged between the first adjusting member 14 and the pull rod 221, which can be determined according to actual design needs.

[0050] like Figure 1 , Figure 8 and Fig. 9As shown, in one embodiment, the support arm device 100 further includes an assembly seat 30, and the sleeve 21 includes a tube body 212, a first ear portion 213, and a second ear portion 214. The first ear portion 213 is provided at one end of the tube body 212 and is rotatably connected to the assembly seat 30 around the third axis L3. The first ear portion 213 is divided by the third axis L3 into a first extension segment 2131 and a second extension segment 2132, and the first extension segment 2131 is connected to the tube body 212. The second ear portion 214 is provided at the other end of the tube body 212 and is rotatably connected to the connection seat 10 around the first axis L1. The second ear portion 214 is divided by the first axis L1 into a third extension segment 2141 and a fourth extension segment 2142, and the third extension segment 2141 is connected to the tube body 212.

[0051] like Fig.10 and Fig.11 As shown, in one embodiment, the first seat body 11 includes a first side plate 111 and a second side plate 112 arranged opposite to the first side plate 111, the first side plate 111 is provided with a first assembly hole 1111, the second side plate 112 is provided with a second assembly hole 1121, the sleeve connector 12 includes a first assembly end 121 and a second assembly end 122, the first assembly end 121 is passed through the first assembly hole 1111, and the second assembly end 122 is passed through the second assembly hole 1121. The number of the second ear portions 214 is two, one of the second ear portions 214 is provided on a side of the first side plate 111 facing away from the second side plate 112 and is rotatably connected to the first assembly end 121, and the other second ear portion 214 is provided on a side of the second side plate 112 facing away from the first side plate 111 and is rotatably connected to the second assembly end 122.

[0052] like Fig.12 As shown, in one embodiment, the assembly seat 30 includes a second seat body 31 and a limit member 32, the first ear 213 is rotatably connected to the second seat body 31, the limit member 32 is arranged on the top side of the first ear 213, and is adjustably installed on the second seat body 31 on the rotation path of the second mating section 143, and the limit member 32 is used to limit the second mating section 143 from rotating upward around the third axis L3.

[0053] like Fig.12As shown, in one embodiment, the second seat body 31 includes a third side plate 311 and a fourth side plate 312 arranged opposite to the third side plate 311, and the stopper 32 is adjustably mounted on the third side plate 311 and the fourth side plate 312. The assembly seat 30 also includes an adjustment rod 33 and a second adjustment member 34. The adjustment rod 33 is rotatably mounted between the third side plate 311 and the fourth side plate 312. The adjustment rod 33 is provided with a first screw hole or a first hole in the radial direction, and the stopper 32 is provided with a second screw hole. After the second adjustment member 34 passes through the first screw hole or the first hole, it is threadedly engaged with the second screw hole 321. By rotating the second adjustment member 34, the stopper 32 can be driven to adjust on the rotation path of the second mating section 143. The second adjustment member 34 can be, but is not limited to, a bolt.

[0054] like Fig.12 As shown, in one embodiment, the third side plate 311 and the fourth side plate 312 are provided with an adjustment slot 3111, and both ends of the position-limiting member 32 are respectively inserted into the adjustment slots 3111 of the third side plate 311 and the fourth side plate 312 and can be adjusted along the adjustment slots 3111. When the position of the position-limiting member 32 needs to be adjusted, the operator rotates the second adjustment member 34, and the second adjustment member 34 drives the position-limiting member 32 to move along the adjustment slot 3111.

[0055] In one embodiment, a groove is provided at one end of the second adjusting member 34, 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 member 34 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 member 34 to rotate.

[0056] like Fig.12 As shown, in one embodiment, the adjustment slot 3111 is in an arc shape with the third axis L3 as the center. Of course, the adjustment slot 3111 is not limited to an arc shape, but can also be a straight line or other shapes, which can be determined according to actual design requirements.

[0057] The embodiment of the present invention further provides a medical device, which includes a medical device and the above-mentioned support arm device 100, wherein the medical device is installed on the spring tube 20. Optionally, the medical device is at least one of a surgical lamp, a display, a control box and a camera.

[0058] 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 includes a connecting seat and a spring tube, wherein the spring tube is connected to the connecting seat and is used to provide a balancing force to support the weight of the medical device; The connecting seat comprises a first seat body, and a tie rod connecting piece and a first adjusting piece installed on the first seat body, the tie rod connecting piece is connected to the spring tube, the first adjusting piece is threadedly matched with the tie rod connecting piece, and the tie rod connecting piece can be driven to move linearly by rotating and adjusting the first adjusting piece to adjust the balancing force of the spring tube; In which, the connecting seat also includes a first stop portion and a second stop portion, the first stop portion is arranged on the first adjusting member, and the second stop portion is arranged on the first seat body, and the second stop portion is used to lock and cooperate with the first stop portion to limit the first adjusting member from rotating relative to the first seat body, and when a tool is inserted into the first adjusting member to adjust the first adjusting member, the tool simultaneously unlocks the cooperation between the first stop portion and the second stop portion.

2. The support arm device according to claim 1, characterized in that: The first anti-rotation portion includes a slot, and the second anti-rotation portion includes a anti-rotation member that can elastically expand and contract along the radial direction of the first adjusting member. When the first adjusting member is rotated until the anti-rotation member is opposite to the slot, the anti-rotation member is partially embedded in the slot to limit the first adjusting member from rotating relative to the first seat body.

3. The support arm device according to claim 2, characterized in that: The second stopper is an elastic plunger, comprising a shell, an elastic member and the stopper, the shell having an inner cavity and an opening connected to the inner cavity, the stopper comprising a first end and a second end, the first end of the stopper being movably disposed in the inner cavity, the size of the first end of the stopper being larger than the size of the opening, the second end of the stopper passing through the opening to expose the outside of the shell, and the elastic member being disposed between the bottom wall of the inner cavity and the stopper.

4. The support arm device according to claim 2, characterized in that: The number of the clamping slots is at least two, and the at least two clamping slots are distributed at equal intervals along the circumference of the first adjusting member.

5. The support arm device according to claim 2, characterized in that: An adjusting hole extending in the axial direction is provided at one end of the first adjusting member, the adjusting hole is used to insert the cylindrical tool driving the first adjusting member to rotate, and the clamping groove is communicated with the adjusting hole; When the anti-rotation member is embedded in the slot, the anti-rotation member partially extends into the adjusting hole, and when the cylindrical tool is inserted into the adjusting hole, the anti-rotation member can be driven to exit the adjusting hole.

6. The support arm device according to claim 5, characterized in that: The anti-rotation member includes a shaft segment and a ball head connected to the end of the shaft segment. When the anti-rotation member is embedded in the slot, the ball head extends into the adjustment hole, or the ball head and part of the shaft segment extend into the adjustment hole.

7. The support arm device according to claim 5, characterized in that: The first adjusting member includes a first fitting section and a second fitting section connected to the first fitting section, the diameter of the second fitting section is smaller than the diameter of the first fitting section, the adjusting hole passes through the second fitting section and part of the first fitting section, the first fitting section is provided with an external thread, and the slot is provided on the second fitting section.

8. The support arm device according to claim 2, characterized in that: The slot includes a first side wall and a second side wall opposite to the first side wall in the circumferential direction of the first adjusting member, and the distance between the first side wall and the second side wall gradually increases from the inner side wall of the adjusting hole toward the outer side wall of the first adjusting member.

9. The support arm device according to claim 1, 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 first seat body and penetrates the guide hole to guide the movement of the pull rod connector.

10. The support arm device according to claim 9, characterized in that: The first adjusting member is located between the guide column and the pull rod.

11. The support arm device according to claim 1, characterized in that: The connecting seat further comprises a sleeve connecting piece installed on the first seat body, and the pull rod connecting piece can be driven to move linearly towards or away from the sleeve connecting piece within a first moving range by rotating and adjusting the first adjusting piece; The spring tube comprises: A sleeve, comprising a first end and a second end, wherein the first end of the sleeve is rotatably connected to the sleeve connector around a first axis; An 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 first adjusting member around a second axis, the pull rod can be rotated toward and away from the sleeve connector 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 support arm device can support the weight of the medical device.

12. The support arm device according to claim 11, characterized in that: The support arm device also includes a mounting seat, and the sleeve includes 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 third axis. The first ear is divided into a first extension section and a second extension section by the third axis. The first extension section is connected to the tube body. The second ear is disposed at the other end of the tube body and is rotatably connected to the connecting seat around the first axis. The second ear is divided into a third extension section and a fourth extension section by the first axis, and the third extension section is connected to the tube body.

13. The support arm device according to claim 12, characterized in that: The assembly seat comprises: a second seat body, wherein the first ear portion is rotatably connected to the second seat body; A limiter is disposed on the top side of the first ear portion and is adjustably mounted on the second seat body on the rotation path of the second extension section, and the limiter is used to limit the second extension section from rotating upward around the third axis.

14. The support arm device according to claim 12, 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 fourth axis, and the second end of the rod is rotatably connected to the assembly seat around a fifth axis. The sleeve, the rod, the connecting seat and the assembly seat are combined to form a parallelogram four-bar linkage.

15. The support arm device according to claim 14, characterized in that: The rod is provided with a wire management groove.

16. The support arm device according to claim 11, 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.

17. The support arm device according to claim 16, characterized in that: The first sliding block can slide in the sleeve and abut against the inner wall of the sleeve.

18. The support arm device according to claim 17, 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.

19. A medical device, characterized in that: include: Medical devices; The support arm device according to any one of claims 1 to 18; Wherein, the medical device is installed on the spring tube.

20. The medical device according to claim 19, wherein The medical device is at least one of an operating light, a display, a control box and a camera.

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