Stent and medical equipment

Abstract

The support comprises a first rotating joint (10), a supporting arm (20) and a second rotating joint (30). The first rotating joint comprises a first joint body (11) and a second joint body (12) which are rotationally connected. A first joint channel (15) is arranged in the first rotating joint. One end of the supporting arm is rotatably connected with the second joint body. An arm channel (25) is arranged in the supporting arm. The second rotating joint comprises a third joint body (31) and a fourth joint body (32) which are rotationally connected. The third joint body is rotatably connected with the other end of the supporting arm. And a second joint channel (35) is formed in the second rotating joint. The first joint channel, the arm channel and the second joint channel are sequentially communicated end to end to form a communication channel. The bracket is favorable for improving the safety performance. In addition, the invention further provides medical equipment comprising the stent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical equipment, in particular to a bracket and a medical equipment comprising the same. BACKGROUND

[0002] A display for monitoring detection results is often configured on a mobile C-arm X-ray imaging equipment. The display is connected to the equipment main body through a bracket. The position and angle of the display can be changed by adjusting the bracket. The cable connecting the display is arranged outside the bracket. The exposed cable is prone to friction with other components, which poses a safety hazard. SUMMARY

[0003] The purpose of the present application is to provide a bracket which is beneficial to reduce the friction between the transmission pipeline and other components.

[0004] Another purpose of the present application is to provide a medical equipment which is beneficial to reduce the friction between the transmission pipeline and other components.

[0005] The present application provides a bracket comprising a first rotary joint, a support arm and a second rotary joint. The first rotary joint comprises a first joint body and a second joint body which are rotatably connected. The first joint body is used to connect an object to be supported. The first rotary joint has a first joint channel inside which penetrates the first joint body and the second joint body. One end of the support arm is rotatably connected to the second joint body. The support arm has an arm channel inside which penetrates both ends of the support arm. The second rotary joint comprises a third joint body and a fourth joint body which are rotatably connected. The third joint body is rotatably connected to the other end of the support arm. The second rotary joint has a second joint channel inside which penetrates the third joint body and the fourth joint body. The first joint channel, the arm channel and the second joint channel are sequentially and continuously connected to form a continuous channel.

[0006] In use, the position and angle of the object to be supported can be changed by adjusting the relative rotation position of each rotary connection. The bracket is provided with a continuous channel inside, which can hide the transmission pipeline inside, so that the transmission pipeline is not prone to friction with other components, thereby improving the safety performance.

[0007] In another illustrative embodiment of the bracket, the bracket further comprises a connecting assembly. The connecting assembly comprises a connecting plate and a rotary support. The connecting plate is used to connect the object to be supported and has an opening which penetrates along the thickness direction thereof. The rotary support is connected to the connecting plate. The first joint body is rotatably connected to the rotary support about an axis perpendicular to the thickness direction. The opening of the first joint channel is opposite to the channel opening of the first joint body. The connecting assembly can increase the adjustment dimension, and the connecting plate is beneficial to improve the stability of the connection with the object to be supported, especially when the object to be supported is also substantially plate-shaped (such as a display).

[0008] In another illustrative embodiment of the bracket, the rotation axes of the second joint body relative to the support arm and the third joint body relative to the support arm are both parallel to the first direction. The bracket also includes a positioning arm and a positioning element. The positioning arm is disposed in the arm channel. The two ends of the positioning arm are rotatably connected to the second joint body and the third joint body, respectively, and their rotation axes are both parallel to the first direction. The support arm, positioning arm, second joint body, and third joint body constitute a parallel four-bar structure. The positioning element is disposed in the arm channel and connects the support arm and the positioning arm. The positioning element can switch between a locked state that fixes the relative position of the support arm and the positioning arm and a released state that allows relative movement between the support arm and the positioning arm. In this way, during the deformation of the parallel four-bar structure, the relative angle between the second joint body and the third joint body can remain unchanged, while only their relative positions change, thereby facilitating operation.

[0009] In another illustrative embodiment of the bracket, the positioning element is a lockable gas spring. One of the piston rod and cylinder of the lockable gas spring is rotatably connected to the support arm, and the other is rotatably connected to the positioning arm, with both axes of rotation parallel to the first direction. The relative positions of the first and second rotating joints can be easily adjusted using the lockable gas spring.

[0010] In another illustrative embodiment of the bracket, the bracket further includes a connector and an adjusting shaft. The connector is rotatably connected to the support arm about an axis parallel to a first direction. The end of the piston rod of the lockable gas spring is inserted into and fixed to the connector. The adjusting shaft is rotatably inserted through the connector, and its axis of rotation coincides with the axis of rotation of the connector relative to the support arm. A groove is recessed in the circumferential surface of the adjusting shaft. The valve core of the lockable gas spring is inserted into the groove. The shape of the groove is configured such that the rotating adjusting shaft can push against the valve core through the groove wall, thereby switching the lockable gas spring from one state to another—a locked state and a released state. This structure facilitates switching the state of the lockable gas spring.

[0011] In another illustrative embodiment of the bracket, the positioning arm includes two side plates and a spacer plate. The two side plates are perpendicular to a first direction and spaced apart along that direction. The spacer plate is parallel to the first direction and connects the two side plates to form a cable routing groove extending along the length of the support arm. A positioning element is disposed on the side of the spacer plate opposite to the cable routing groove. This isolates the transmission lines from the positioning element, thus protecting the transmission lines.

[0012] In another illustrative embodiment of the support, the rotatably connected ends of the first and second joint bodies are both tubular and interlocked, and / or the rotatably connected ends of the third and fourth joint bodies are both tubular and interlocked. This creates a channel in the center of the interlocked portions, allowing the transmission line to pass through.

[0013] In another illustrative embodiment of the bracket, the bracket is provided with an operating port on the first rotating joint, the support arm, and / or the second rotating joint. The operating port connects to the communication channel. The bracket also includes a cover. The cover is detachably installed on the operating port. During the process of inserting the transmission line into the communication channel, the installer can guide the direction of the transmission line by, for example, by reaching through the operating port with their hand or a tool, thereby facilitating the smooth passage of the transmission line.

[0014] In another illustrative embodiment of the support, the support further includes a first cover and / or a second cover. The first cover is rotatably connected to the second joint body, and its rotation axis coincides with the rotation axis of the second joint body relative to the support arm. The first cover can cover the gap leading to the communication channel between the second joint body and the support arm during the rotation of the second joint body relative to the support arm. The second cover is rotatably connected to a third joint body, and its rotation axis coincides with the rotation axis of the third joint body relative to the support arm. The second cover can cover the gap leading to the communication channel between the third joint body and the support arm during the rotation of the third joint body relative to the support arm. This prevents foreign objects from entering the gap and affecting the normal operation of the support.

[0015] The present invention also provides a medical device comprising the aforementioned support. A first joint body connects to the object to be supported by the medical device. In use, the position and angle of the object to be supported can be changed by adjusting the relative rotational positions of the various rotating connections. The support has a communicating channel within it, which can conceal the transmission lines internally, making it less likely for the transmission lines to rub against other components, thus improving safety.

[0016] In another illustrative embodiment of the medical device, the medical device is a C-arm X-ray imaging device, and the support is a display. The fourth joint is connected to the base of the C-arm X-ray imaging device. Attached Figure Description

[0017] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0018] Figure 1 This is a schematic diagram illustrating one embodiment of the support structure.

[0019] Figure 2 For explanation Figure 1 The illustration shows a schematic use case for the bracket.

[0020] Figure 3 for Figure 1 A partial sectional view of the bracket shown.

[0021] Figure 4 for Figure 3A magnified view of a portion of the image.

[0022] Figure 5 Used to display the positioning arm and positioning element.

[0023] Figure 6 for Figure 3 Another enlarged view of a portion of the image.

[0024] Figure 7 For explanation Figure 1 The distribution of the operating ports and cover of the bracket is shown.

[0025] Label Explanation

[0026] 10 First Rotational Joint

[0027] 11 First joint body

[0028] 12 Second joint body

[0029] 15 First Joint Channel

[0030] 20 support arms

[0031] 25-arm access

[0032] 30 Second Rotational Joint

[0033] 31 Third joint body

[0034] 32 Fourth joint body

[0035] 35 Second joint channel

[0036] 40 connection components

[0037] 41 Connecting plate

[0038] 411 opening

[0039] 42 Rotating support

[0040] 50 positioning arm

[0041] 51 side panels

[0042] 52 partition plates

[0043] 53 Cable Tray

[0044] 60 positioning parts

[0045] 61 Piston Rod

[0046] 62 cylinders

[0047] 63 valve core

[0048] 71 Connector

[0049] 72 Adjustment Shaft

[0050] 721 Groove

[0051] 73 handle

[0052] 81 First Covering

[0053] 82 Second Covering

[0054] 91 Damping Ring

[0055] 92 fasteners

[0056] 93 bearing

[0057] 94 Adjusting Screw

[0058] C-cover

[0059] P operation port

[0060] 100 brackets

[0061] 200 objects to be supported

[0062] 300 base

[0063] 400 transmission line

[0064] D1 First Direction

[0065] D2 Second Direction

[0066] H-connector plate thickness direction

[0067] L-shaped support arm in length direction Detailed Implementation

[0068] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0069] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0070] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.

[0071] To keep the drawings simple, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product.

[0072] Figure 1This is a schematic structural diagram illustrating one embodiment of a stent. The stent, for example, is part of a medical device used to support the object to be supported by the medical device, such as a C-arm X-ray imaging device, for example, a mobile C-arm X-ray imaging device or a digital subtraction angiography (DSA) machine, but not limited thereto. The object to be supported by the medical device is, for example, a display used to display test results, but not limited thereto. Figure 2 For explanation Figure 1 The bracket shown is for use with mobile C-arm X-ray imaging equipment. Figure 2 As shown, the object to be supported 200 is ultimately connected to the base 300 through the bracket 100 and other structures.

[0073] Figure 3 for Figure 1 A partial sectional view of the bracket shown. (As shown) Figure 1 and Figure 3 As shown, the bracket 100 includes a first rotating joint 10, a support arm 20, and a second rotating joint 30.

[0074] The first rotary joint 10 includes a first joint body 11 and a second joint body 12 that are rotatably connected, and the axis of rotation is axis L1. The first joint body 11 is used to connect to the object to be supported. Figure 3 As shown, the first rotating joint 10 has a first joint channel 15 that passes through the first joint body 11 and the second joint body 12.

[0075] One end of the support arm 20 (i.e. Figure 1 and Figure 3 The left end of the joint is rotatably connected to the second joint body 12, and the axis of rotation is L2. For example... Figure 3 As shown, the support arm 20 has an arm channel 25 that runs through both ends of it.

[0076] The second rotating joint 30 includes a third joint body 31 and a fourth joint body 32 rotatably connected, and the axis of rotation is axis L4. The third joint body 31 is rotatably connected to the other end of the support arm 20 (i.e., Figure 1 and Figure 3 (at the right end of the middle), and the axis of rotation is axis L3. For example... Figure 3 As shown, the second rotating joint 30 has a second joint channel 35 that runs through the third joint body 31 and the fourth joint body 32. The first joint channel 15, the arm channel 25, and the second joint channel 35 are sequentially connected end-to-end to form a connecting channel for accommodating a transmission line 400 (one transmission line 400 is used as an example in the figure). One end of the transmission line 400 is used, for example, to connect to the object to be supported. The transmission line 400 is, for example, a cable, pipe, or flexible hose.

[0077] During use, the position and angle of the object to be supported can be changed by adjusting the relative rotational positions of the various rotating connections. The bracket has internal connecting channels that conceal the transmission lines, reducing the risk of friction between the lines and other components and improving safety.

[0078] like Figure 1 and Figure 3 As shown, in the illustrative embodiment, the support 100 further includes a connecting assembly 40. The first joint body 11 is connected to the object to be supported via the connecting assembly 40. The connecting assembly 40 includes a connecting plate 41 and two rotating supports 42. The connecting plate 41 is used to connect the object to be supported and has an opening 411 extending through it in the thickness direction H. The rotating supports 42 are connected to the connecting plate 41. The connecting plate 41 and the rotating supports 42 are, for example, cut and bent from a single sheet of material, which facilitates processing, but is not limited thereto. The first joint body 11 is rotatably connected to the rotating supports 42 about an axis L5 perpendicular to the thickness direction H. The opening of the first joint channel 15 in the first joint body 11 is opposite to the opening 411. The transmission line 400, for example, passes through the opening 411 first, and then enters the first rotating joint 10 from the opening of the first joint channel 15 in the first joint body 11. The connection component 40 can increase the adjustment dimension, and the connection plate 41 helps to improve the stability of the connection with the object to be supported, especially when the object to be supported is also roughly plate-shaped (e.g., a display).

[0079] like Figure 3 As shown, in the schematic embodiment, the rotation axis of the second joint body 12 relative to the support arm 20 and the rotation axis of the third joint body 31 relative to the support arm 20 are both parallel to the first direction D1. The bracket 100 also includes a positioning arm 50 and a positioning element 60. Both the positioning arm 50 and the positioning element 60 are disposed in the arm channel 25. The two ends of the positioning arm 50 are rotatably connected to the second joint body 12 and the third joint body 31, respectively, and their rotation axes are both parallel to the first direction D1. Figure 3 As shown, the rotation axis of the positioning arm 50 relative to the second joint body 12 is axis L6, and the rotation axis of the positioning arm 50 relative to the third joint body 31 is axis L7. The support arm 20, positioning arm 50, second joint body 12, and third joint body 31 constitute a parallel four-bar linkage structure. Therefore, during the deformation of this parallel four-bar linkage structure, the relative angle between the second joint body 12 and the third joint body 31 can remain unchanged, while only their relative positions change, thereby facilitating operation.

[0080] Positioning element 60 connects support arm 20 and positioning arm 50. Positioning element 60 can switch between a locked state, fixing the relative position of support arm 20 and positioning arm 50, and a released state, allowing relative movement between support arm 20 and positioning arm 50. Specifically, as... Figure 3As shown, in the illustrative embodiment, the positioning element 60 is, for example, a lockable gas spring. The lockable gas spring is, for example, the lockable gas spring described in GB / T39433-2020 Gas Spring Design Calculation. The lockable gas spring is, for example, an elastic lockable gas spring, but is not limited to this. The piston rod 61 of the lockable gas spring is rotatably connected to the support arm 20, and the cylinder 62 is rotatably connected to the positioning arm 50, with both rotation axes parallel to the first direction D1. In use, when it is necessary to adjust the relative position of the first rotating joint 10 and the second rotating joint 30, the valve core 63 of the lockable gas spring is first pressed down to release the lockable gas spring. Then, adjustment is performed through the deformation of this parallel four-bar linkage. After reaching the target position, the valve core 63 is released to lock the lockable gas spring. The relative position of the first rotating joint 10 and the second rotating joint 30 can be easily adjusted using the lockable gas spring.

[0081] like Figure 3 As shown in the schematic embodiment, the bracket 100 also includes a connector 71 and an adjusting shaft 72. The lockable gas spring is rotatably connected to the support arm 20 via the connector 71. Figure 4 for Figure 3 See the enlarged view of the part. Figure 4 The connecting member 71 is rotatably connected to the support arm 20 about an axis L8 parallel to the first direction D1. In this illustrative embodiment, the connecting member 71 is composed of multiple components, but is not limited thereto. The end of the piston rod 61 of the lockable gas spring is inserted into and fixed to the connecting member 71. The adjusting shaft 72 is rotatably inserted through the connecting member 71, and its rotation axis coincides with the rotation axis of the connecting member 71 relative to the support arm 20. A groove 721 is recessed in the circumferential surface of the adjusting shaft 72. The valve core 63 of the lockable gas spring is inserted into the groove 721. The shape of the groove 721 is set so that the rotating adjusting shaft 72 can push against the valve core 63 through the groove wall of the groove 721, thereby switching the lockable gas spring from the locked state to the released state. That is, the adjusting shaft 72 and the valve core 63 form a cam structure, and the rotation of the adjusting shaft 72 is converted into the linear motion of the valve core 63. In the illustrative embodiment, the shape of the groove 721 can be configured as needed so that the lockable gas spring can be switched between a locked state and a released state by rotating the adjusting shaft 72. This structure facilitates switching the state of the lockable gas spring.

[0082] like Figure 1 As shown, in the illustrative embodiment, the bracket 100 also includes a handle 73, which is fixedly connected to the adjustment shaft 72 and is at least partially located on the outside of the support arm 20. This facilitates operation.

[0083] Figure 5 The positioning arm 50 and the positioning element 60 are shown. (Example) Figure 5As shown, in the schematic embodiment, the positioning arm 50 includes two side plates 51 and a spacer plate 52. Both side plates 51 are perpendicular to the first direction D1 and spaced apart along the first direction D1. The spacer plate 52 is parallel to the first direction D1 and connects the two side plates 51 to form a wiring groove 53 extending along the length direction L of the support arm 20. A positioning member 60 is disposed on the side of the spacer plate 52 opposite to the wiring groove 53. Figure 3 As shown, the space on one side of the arm channel 25 opposite the cable tray 53 on the partition plate 52 is used to accommodate the transmission line, thereby isolating the transmission line from the positioning member 60 and protecting the transmission line.

[0084] like Figure 3 As shown in the schematic embodiment, the rotatably connected ends of the first joint body 11 and the second joint body 12 are both tubular and interlocked. The rotatably connected ends of the third joint body 31 and the fourth joint body 32 are both tubular and interlocked. In this way, a channel is formed in the center of the interlocked portions to facilitate the passage of the transmission line.

[0085] Figure 6 for Figure 3 Another enlarged view of a portion. For example... Figure 6 As shown, the bracket 100 also includes a damping ring 91. One damping ring 91 is radially disposed between the interlocking ends of the first joint body 11 and the second joint body 12 to increase the rotational resistance between the first joint body 11 and the second joint body 12. Similarly, another damping ring 91 is radially disposed between the interlocking ends of the third joint body 31 and the fourth joint body 32 to increase the rotational resistance between the third joint body 31 and the fourth joint body 32. In actual operation, the rotational resistance must be overcome to achieve relative rotation. This avoids changes in rotational position caused by accidental minor collisions. Furthermore, as... Figure 6 As shown, in the illustrative embodiment, an adjusting screw 94 may also be provided. One adjusting screw 94 passes through and is threaded into the second joint body 12, and abuts against the damping ring 91 between the first joint body 11 and the second joint body 12. Turning this adjusting screw 94 adjusts the rotational resistance of the first joint body 11 relative to the second joint body 12. Similarly, another adjusting screw 94 passes through and is threaded into the fourth joint body 32, and abuts against the damping ring 91 between the third joint body 31 and the fourth joint body 32. Turning this adjusting screw 94 adjusts the rotational resistance of the third joint body 31 relative to the fourth joint body 32.

[0086] like Figure 6As shown, the bracket 100 also includes a fixing member 92. One fixing member 92 is detachably fixed to the end of one of the interlocking ends of the first joint body 11 and the second joint body 12 (in this illustrative embodiment, the first joint body 11) that serves as a shaft, to fix the relative position of the first joint body 11 and the second joint body 12 along the rotational axis. Similarly, another fixing member 92 is detachably fixed to the end of one of the interlocking ends of the third joint body 31 and the fourth joint body 32 (in this illustrative embodiment, the third joint body 31) that serves as a shaft, to fix the relative position of the third joint body 31 and the fourth joint body 32 along the rotational axis. In other illustrative embodiments, the fixing member 92 may be replaced by a retaining spring to achieve the same limiting function.

[0087] like Figure 6 As shown, the support 100 also includes a bearing 93. The bearing 93 is disposed between the first joint body 11 and the second joint body 12 to support their rotation. The bearing 93 is also disposed between the third joint body 31 and the fourth joint body 32 to support their rotation. This improves the stability of rotation.

[0088] like Figure 1 As shown, in the illustrative embodiment, the rotation axis of the first joint body 11 relative to the second joint body 12 and the rotation axis of the third joint body 31 relative to the fourth joint body 32 are, for example, parallel to the second direction D2, wherein the second direction D2 is perpendicular to the first direction D1, but are not limited thereto.

[0089] Figure 7 for Figure 3 An exploded view of the support structure is shown. Figure 7 As shown in the illustrative embodiment, the bracket 100 is provided with operating ports P at the first rotating joint 10, the support arm 20, and the second rotating joint 30. Operating ports P connect to a connecting channel. During the process of inserting the transmission line into the connecting channel, the installer can guide the direction of the transmission line by, for example, by reaching through the operating port P with their hand or a tool, thereby facilitating the smooth passage of the transmission line. The bracket 100 also includes a cover C. The cover C is detachably installed over the operating port P. In other illustrative embodiments, the position and number of operating ports P can be adjusted as needed.

[0090] like Figure 1 and Figure 3As shown in the schematic embodiment, the support 100 further includes a first cover 81 and a second cover 82. The first cover 81 is rotatably connected to the second joint body 12, and its rotation axis coincides with the rotation axis of the second joint body 12 relative to the support arm 20. The first cover 81 can cover the gap leading to the communication channel between the second joint body 12 and the support arm 20 during the rotation of the second joint body 12 relative to the support arm 20. The second cover 82 is rotatably connected to the third joint body 31, and its rotation axis coincides with the rotation axis of the third joint body 31 relative to the support arm 20. The second cover 82 can cover the gap leading to the communication channel between the third joint body 31 and the support arm 20 during the rotation of the third joint body 31 relative to the support arm 20. This prevents foreign objects from entering the gap and affecting the normal operation of the support.

[0091] The present invention also provides a medical device, such as a C-arm X-ray imaging device, for example, a mobile C-arm X-ray imaging device or a digital subtraction angiography (DSA) machine, but not limited thereto. The support 200 of the medical device is, for example, a display, used for displaying test results, but not limited thereto. Figure 2 Taking a mobile C-arm X-ray imaging device as an example, such as Figure 2 As shown, the medical equipment includes Figure 1 The support 100 is shown. The object to be supported 200 is ultimately connected to the base 300 via the support 100 and other structures. The first joint 11 of the support 100 is connected to the object to be supported 200 via a connecting assembly 40. The fourth joint 32 is used to connect to the base 300. The transmission line connecting the object to be supported 200 passes through the connecting channel of the support 100 and ultimately reaches the base 300.

[0092] In use, the position and angle of the object to be supported can be changed by adjusting the relative rotational positions of the various rotating connections. The bracket has internal connecting channels that conceal the transmission lines, reducing the risk of friction between the lines and other components and improving safety.

[0093] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0094] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. A support, characterized in that, include: A first rotating joint (10) includes a first joint body (11) and a second joint body (12) rotatably connected. The first joint body (11) is used to connect the object to be supported. The first rotating joint (10) has a first joint channel (15) that passes through the first joint body (11) and the second joint body (12). A support arm (20), one end of which is rotatably connected to the second joint body (12), the support arm (20) having an arm channel (25) extending through both ends thereof; and A second rotating joint (30) includes a third joint body (31) and a fourth joint body (32) rotatably connected, the third joint body (31) being rotatably connected to the other end of the support arm (20), and the second rotating joint (30) having a second joint channel (35) passing through the third joint body (31) and the fourth joint body (32); The first joint channel (15), the arm channel (25), and the second joint channel (35) are connected end to end in sequence to form a connecting channel.

2. The bracket as described in claim 1, characterized in that, The bracket further includes a connecting assembly (40), which includes a connecting plate (41) and a rotating support (42). The connecting plate (41) is used to connect the object to be supported and has an opening (411) extending along its thickness direction (H). The rotating support (42) is connected to the connecting plate (41). The first joint body (11) is rotatably connected to the rotating support (42) about an axis perpendicular to the thickness direction (H). The opening of the first joint channel (15) in the first joint body (11) is opposite to the opening (411).

3. The bracket as described in claim 1, characterized in that, The rotation axis of the second joint body (12) relative to the support arm (20) and the rotation axis of the third joint body (31) relative to the support arm (20) are both parallel to the first direction (D1). The bracket further includes: A positioning arm (50) is disposed in the arm channel (25). The two ends of the positioning arm (50) are rotatably connected to the second joint body (12) and the third joint body (31), respectively, and their rotation axes are parallel to the first direction (D1). The support arm (20), the positioning arm (50), the second joint body (12), and the third joint body (31) constitute a parallel four-bar linkage structure. A positioning element (60) is disposed in the arm channel (25) and connects the support arm (20) and the positioning arm (50). The positioning element (60) is switchable between a locked state that fixes the relative position of the support arm (20) and the positioning arm (50) and a released state that allows the support arm (20) and the positioning arm (50) to move relative to each other.

4. The bracket as described in claim 3, characterized in that, The positioning element (60) is a lockable gas spring. One of the piston rod (61) and cylinder (62) of the lockable gas spring is rotatably connected to the support arm (20), and the other is rotatably connected to the positioning arm (50), and the rotation axis is parallel to the first direction (D1).

5. The bracket as described in claim 4, characterized in that, The support also includes: A connector (71) rotatably connects the support arm (20) about an axis parallel to the first direction (D1), the end of the piston rod (61) of the lockable gas spring being inserted into and fixed to the connector (71); and An adjusting shaft (72) is rotatably inserted through the connector (71), and the axis of rotation coincides with the axis of rotation of the connector (71) relative to the support arm (20). A groove (721) is recessed on the circumferential surface of the adjusting shaft (72), and the valve core (63) of the lockable gas spring is inserted into the groove (721). The shape of the groove (721) is configured such that the rotating adjusting shaft (72) can push against the valve core (63) through the groove wall of the groove (721), thereby switching the lockable gas spring from one state of the locked state and the released state to the other state.

6. The bracket as described in claim 3, characterized in that, The positioning arm (50) includes: Two side plates (51), both side plates (51) being perpendicular to the first direction (D1) and spaced apart along the first direction (D1); and A partition plate (52) is parallel to the first direction (D1) and connects the two side plates (51) to form a wiring groove (53) extending along the length direction (L) of the support arm (20), and the positioning member (60) is disposed on the side of the partition plate (52) opposite to the wiring groove (53).

7. The bracket as described in claim 1, characterized in that, The ends of the first joint body (11) and the second joint body (12) that are rotatably connected to each other are tubular and sleeved together, and / or the ends of the third joint body (31) and the fourth joint body (32) that are rotatably connected to each other are tubular and sleeved together.

8. The bracket as described in claim 1, characterized in that, The bracket is provided with an operating port (P) at the first rotating joint (10), the support arm (20) and / or the second rotating joint (30), the operating port (P) is connected to the connecting channel, and the bracket also includes a cover (C), the cover (C) being detachably installed on the operating port (P).

9. The bracket as described in claim 1, characterized in that, The support also includes: A first cover (81) rotatably connected to the second joint body (12), with its axis of rotation coinciding with the axis of rotation of the second joint body (12) relative to the support arm (20), the first cover (81) being capable of covering the gap between the second joint body (12) and the support arm (20) leading to the communicating channel during rotation of the second joint body (12) relative to the support arm (20); and / or A second cover (82) is rotatably connected to the third joint body (31) and the axis of rotation coincides with the axis of rotation of the third joint body (31) relative to the support arm (20). The second cover (82) is capable of covering the gap between the third joint body (31) and the support arm (20) leading to the communicating channel during the rotation of the third joint body (31) relative to the support arm (20).

10. A medical device, characterized in that, Includes a support as described in any one of claims 1 to 9, wherein the first joint body (11) is connected to the support (200) of the medical device.

11. The medical device as described in claim 10, characterized in that, The medical device is a C-arm X-ray imaging device, the support (200) is a display, and the fourth joint (32) is connected to the base (300) of the C-arm X-ray imaging device.

Images