Joint support on operating table
By designing a joint support that includes a base, boss, adjustment components, and locking elements, the problem of loosening of existing support sleeves has been solved, achieving stability of the patient's leg height and improving the outcome of joint surgery.
Patent Information
- Application Number
- CN202422921097.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing hip joint surgery stents cannot effectively lock the sleeve position after the lower and upper leadscrews move away from or move closer together when the internal threaded sleeve is rotated. This causes the sleeve to loosen easily, affecting the patient's leg height and reducing the effectiveness of joint surgery.
A joint support was designed, comprising a base, a boss, an adjustment component, a screw, a sleeve, a connecting frame, a turntable, a locking component, and a lateral adjustment unit. By rotating the screw and the sleeve, the locking component fixes the position of the sleeve, and the limiting ring and positioning rod prevent the sleeve from slipping out, thereby achieving stable fixation of the patient's leg position.
The cannula was effectively locked in place to prevent loosening, ensuring the patient's leg height was stable and improving the outcome of joint surgery.
Smart Images

Figure CN223529665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a joint support on an operating table. Background Technology
[0002] In surgical procedures, especially joint surgeries, certain medical assistive devices are required. Joint braces are essential assistive devices in joint surgery, which can support and fix the patient's joint position, improving the surgical outcome. However, existing joint braces have limited functions and cannot be adjusted in height according to usage needs.
[0003] Currently, existing technology (CN221712618U) discloses a support for hip joint surgery, including a hip joint longitudinal angle adjustment support mounted on the surface of the operating table, and a hip joint lateral angle adjustment support movably mounted at the top of the hip joint longitudinal angle adjustment support. The hip joint longitudinal angle adjustment support includes a base, and a lower lead screw and an upper lead screw arranged symmetrically. An internal threaded sleeve controls the gap between the upper and lower lead screws. By raising or lowering the lead screws, the angle between the two legs is increased or decreased, thereby changing the longitudinal angle of the hip joint. In addition, when the support moves along the arched slide rail, the moved leg will make lateral angle adjustment with the stationary leg as the base point, thereby changing the angle posture of the hip joint in the lateral plane. Moreover, the support is divided into upper and lower parts, which are connected by the interlocking relationship between the groove and the ball. The movable ball serves as a base point so that the angle change of the hip joint is not hindered.
[0004] However, using the above method, after rotating the internal threaded sleeve to move the lower and upper threads away from or closer to each other, the position of the internal threaded sleeve cannot be locked. This makes the internal threaded sleeve prone to loosening on the upper or lower threads, which in turn affects the height of the patient's leg and reduces the effectiveness of joint surgery. Utility Model Content
[0005] The purpose of this invention is to provide a joint support on the operating table, which aims to solve the problem that when the rotating internal threaded sleeve of the existing hip joint surgery support causes the lower and upper threads to move away from or towards each other, the position of the internal threaded sleeve cannot be locked, making it easy for the internal threaded sleeve to loosen on the upper or lower threads, thereby affecting the height of the patient's leg and reducing the effectiveness of the joint surgery.
[0006] To achieve the above objectives, this utility model provides a joint support on an operating table, including a base, a boss, and an adjustment assembly. The boss is fixedly connected to the base and is located on top of the base. The adjustment assembly includes a screw, a sleeve, a connecting frame, a turntable, a ring, a locking element, and a lateral adjustment unit.
[0007] The screw is rotatably connected to the base and passes through the boss. The sleeve is threadedly connected to the screw and is located on one side of the screw. The connecting frame is fixedly connected to the sleeve and is located on one side of the sleeve. The turntable is fixedly connected to the screw and is located at the bottom of the screw. The ring is fixedly connected to the boss and rotatably connected to the screw and is located on one side of the boss. The locking member is threadedly connected to the ring and passes through the ring. The lateral adjustment unit is located on one side of the connecting frame.
[0008] The adjustment assembly further includes a limiting ring and a positioning rod. The limiting ring is fixedly connected to the screw and located at the top of the screw. The positioning rod is fixedly connected to the boss and slidably connected to the connecting frame and located on one side of the connecting frame.
[0009] The lateral adjustment unit includes a slide rail, a fixed rod, and a placement frame. The slide rail is fixedly connected to the connecting frame and is located on one side of the connecting frame. The fixed rod is slidably connected to the slide rail and is located on top of the slide rail. The placement frame is fixedly connected to the fixed rod and is located on top of the fixed rod.
[0010] The lateral adjustment unit further includes a connecting rod and a knob. The connecting rod is fixedly connected to the fixed rod and passes through the slide rail. The knob is threadedly connected to the connecting rod and slidably connected to the slide rail, and is located at the bottom of the slide rail.
[0011] The lateral adjustment unit further includes a protective plate and a connector. The protective plate is fixedly connected to the placement frame and located on one side of the placement frame. The connector is fixedly connected to the protective plate and located on the side of the protective plate.
[0012] This utility model discloses a joint support on an operating table. During joint surgery, the patient's surgical position needs to be fixed first. The base is then fixedly installed on the operating table. Based on the patient's surgical position, the medical staff holds the turntable and drives the screw to rotate, pushing the sleeve axially along the screw, thereby moving the lateral adjustment unit. After moving to the appropriate position, the medical staff can turn the locking member clockwise. The locking member passes through the ring and locks onto the screw, stopping the rotation of the locking rod. The position of the sleeve is thus fixed, and the position of the lateral adjustment unit on the connecting frame is also fixed. This allows the medical staff to place the patient's joint on the lateral adjustment unit, facilitating subsequent surgical treatment. This solves the problem of existing hip joint surgery supports where rotating the internal threaded sleeve causes the lower and upper threads to move away or closer together, making it impossible to lock the position of the internal threaded sleeve. This leads to the internal threaded sleeve easily loosening on the upper or lower threads, affecting the height of the patient's leg and reducing the effectiveness of the joint surgery. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the overall structure of a joint support on an operating table according to the present invention.
[0015] Figure 2 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle.
[0016] Figure 3 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle.
[0017] Figure 4 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle.
[0018] 101-Base, 102-Boss, 103-Adjusting component, 104-Screw, 105-Sleeve, 106-Connecting frame, 107-Turntable, 108-Ring, 109-Locking component, 110-Horizontal adjustment unit, 111-Limit ring, 112-Positioning rod, 113-Slide rail, 114-Fixing rod, 115-Placement frame, 116-Connecting rod, 117-Knob, 118-Protective plate, 119-Connector. Detailed Implementation
[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0020] Please see Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of a joint support on an operating table according to the present invention. Figure 2 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle. Figure 3 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle. Figure 4 This is a schematic diagram of the overall structure of a joint support on an operating table according to this utility model from another angle.
[0021] This utility model discloses a joint support on an operating table, comprising a base 101, a boss 102, and an adjustment component 103. The adjustment component 103 includes a screw 104, a sleeve 105, a connecting frame 106, a turntable 107, a ring 108, a locking element 109, a lateral adjustment unit 110, a limiting ring 111, and a positioning rod 112. The lateral adjustment unit 110 includes a slide rail 113, a fixing rod 114, a placement frame 115, a connecting rod 116, a knob 117, a protective plate 118, and a connector 119. The aforementioned solution solves the problem in existing hip joint surgery supports where rotating the internal threaded sleeve 105 causes the lower and upper threads to move away from or towards each other, making it impossible to lock the position of the internal threaded sleeve 105. This results in the internal threaded sleeve 105 easily loosening on the upper or lower threads, thus affecting the height of the patient's leg and reducing the effectiveness of the joint surgery.
[0022] In this specific embodiment, the boss 102 is fixedly connected to the base 101 and is located on top of the base 101. The base 101 fixes the position of the joint bracket at the designated position on the operating table to prevent it from shifting during use.
[0023] The screw 104 is rotatably connected to the base 101 and passes through the boss 102. The sleeve 105 is threadedly connected to the screw 104 and is located on one side of the screw 104. The connecting frame 106 is fixedly connected to the sleeve 105 and is located on one side of the sleeve 105. The turntable 107 is fixedly connected to the screw 104 and is located at the bottom of the screw 104. The ring 108 is fixedly connected to the boss 102 and rotatably connected to the screw 104 and is located on one side of the boss 102. The locking member 109 is threadedly connected to the ring 108 and passes through the ring 108. The lateral adjustment unit 110 is located on one side of the connecting frame 106. When performing joint surgery on a patient, the patient's surgical position needs to be fixed first. The base 101 is fixedly installed on the operating table, and according to the patient's surgical position, the medical staff holds the turntable 107 and drives it. The rotation of the screw 104 pushes the sleeve 105 to move axially on the screw 104, thereby driving the lateral adjustment unit 110 to move. After moving to a suitable position, the medical staff can turn the locking member 109 clockwise. The locking member 109 passes through the ring 108 and locks on the screw 104, so that the locking rod stops rotating, the position of the sleeve 105 is fixed, and the position of the lateral adjustment unit 110 on the connecting frame 106 is fixed. This makes it convenient for the medical staff to place the patient's joint position on the lateral adjustment unit 110, thereby facilitating subsequent surgical treatment. This solves the problem that in existing hip joint surgery brackets, when the rotating internal threaded sleeve 105 drives the lower and upper threads to move away from or closer to each other, the position of the internal threaded sleeve 105 cannot be locked, making it easy for the internal threaded sleeve 105 to loosen on the upper or lower threads, thus affecting the height of the patient's leg and reducing the effectiveness of joint surgery.
[0024] Secondly, the limiting ring 111 is fixedly connected to the screw 104 and located at the top of the screw 104. The positioning rod 112 is fixedly connected to the boss 102 and slidably connected to the connecting frame 106 and located on one side of the connecting frame 106. The limiting ring 111 located at the top of the screw 104 can prevent the sleeve 105 from sliding off the screw 104. The connecting frame 106 moves on the positioning rod 112 while following the movement of the sleeve 105, which can prevent the connecting frame 106 from deviating in direction when following the movement of the sleeve 105.
[0025] Furthermore, the slide rail 113 is fixedly connected to the connecting frame 106 and is located on one side of the connecting frame 106. The fixing rod 114 is slidably connected to the slide rail 113 and is located at the top of the slide rail 113. The placement frame 115 is fixedly connected to the fixing rod 114 and is located at the top of the fixing rod 114. Medical personnel can place the patient's surgical site on the placement frame 115 and move the placement frame 115 by sliding the fixing rod 114 within the slide rail 113, thereby adjusting the position of the patient's surgical site.
[0026] In addition, the connecting rod 116 is fixedly connected to the fixing rod 114 and passes through the slide rail 113. The knob 117 is threadedly connected to the connecting rod 116 and slidably connected to the slide rail 113, and is located at the bottom of the slide rail 113. When the medical staff slides the fixing rod 114, the connecting rod 116 slides accordingly. After the fixing rod 114 moves the placement frame 115 to a suitable position, the knob 117 can be turned clockwise. The knob 117 can abut against the slide rail 113 on the connecting rod 116, thereby fixing the position of the connecting rod 116, and thus fixing the position of the fixing rod 114. The placement frame 115 is then fixed at the designated position.
[0027] Meanwhile, the protective sheet 118 is fixedly connected to the placement frame 115 and located on one side of the placement frame 115. The connector 119 is fixedly connected to the protective sheet 118 and located on the side of the protective sheet 118. Before using the placement frame 115, the protective sheet 118 can be attached to the placement frame 115 to improve the patient's comfort during surgery. After the surgery is completed, the medical staff can hold the connector 119 and peel the protective sheet 118 off the placement frame 115 to avoid surgical residue remaining on the protective sheet 118, which may affect subsequent patients' surgeries.
[0028] This utility model discloses a joint support on an operating table. During joint surgery, the patient's surgical position needs to be fixed first. The base 101 is fixedly installed on the operating table. Based on the patient's surgical position, the medical staff holds the turntable 107 to rotate the screw 104, pushing the sleeve 105 axially along the screw 104. The connecting frame 106 follows the movement, and simultaneously, the positioning rod 112 on the connecting frame 106 moves, preventing directional deviation when the connecting frame 106 moves with the sleeve 105. This, in turn, moves the lateral adjustment unit 110. After moving to the appropriate position, the medical staff can turn the locking member 109 clockwise. The locking member 109 passes through the ring 108 and locks onto the screw 104, stopping the rotation of the locking rod. The position of the sleeve 105 is thus fixed, and the position of the lateral adjustment unit 110 on the connecting frame 106 is also fixed. At this point, the medical staff... The surgeon can place the patient's surgical site on the placement frame 115 and move the placement frame 115 by sliding the fixing rod 114 within the slide rail 113, thereby adjusting the position of the patient's surgical site. After the fixing rod 114 moves the placement frame 115 to the appropriate position, the knob 117 can be turned clockwise. The knob 117 can press against the slide rail 113 on the connecting rod 116, fixing the position of the connecting rod 116, which in turn fixes the position of the fixing rod 114. The placement frame 115 is then fixed in the designated position, facilitating subsequent surgical treatment. This solves the problem in existing hip joint surgery where the rotating internal threaded sleeve 105 causes the lower and upper threads to move away from or towards each other, making it impossible to lock the position of the internal threaded sleeve 105. This can lead to the internal threaded sleeve 105 easily loosening on the upper or lower threads, affecting the height of the patient's leg and reducing the effectiveness of joint surgery.
[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A joint support for an operating table, comprising a base and a boss, the boss being fixedly connected to the base and located on top of the base, characterized in that, It also includes adjustment components; The adjustment assembly includes a screw, a sleeve, a connecting frame, a turntable, a ring, a locking element, and a lateral adjustment unit; The screw is rotatably connected to the base and passes through the boss. The sleeve is threadedly connected to the screw and is located on one side of the screw. The connecting frame is fixedly connected to the sleeve and is located on one side of the sleeve. The turntable is fixedly connected to the screw and is located at the bottom of the screw. The ring is fixedly connected to the boss and rotatably connected to the screw and is located on one side of the boss. The locking member is threadedly connected to the ring and passes through the ring. The lateral adjustment unit is located on one side of the connecting frame.
2. The joint support on the operating table as described in claim 1, characterized in that, The adjustment assembly further includes a limiting ring and a positioning rod. The limiting ring is fixedly connected to the screw and located at the top of the screw. The positioning rod is fixedly connected to the boss and slidably connected to the connecting frame and located on one side of the connecting frame.
3. A joint support on an operating table as described in claim 2, characterized in that, The lateral adjustment unit includes a slide rail, a fixed rod, and a placement frame. The slide rail is fixedly connected to the connecting frame and is located on one side of the connecting frame. The fixed rod is slidably connected to the slide rail and is located on top of the slide rail. The placement frame is fixedly connected to the fixed rod and is located on top of the fixed rod.
4. A joint support on an operating table as described in claim 3, characterized in that, The lateral adjustment unit also includes a connecting rod and a knob. The connecting rod is fixedly connected to the fixed rod and passes through the slide rail. The knob is threadedly connected to the connecting rod and slidably connected to the slide rail, and is located at the bottom of the slide rail.
5. A joint support on an operating table as described in claim 4, characterized in that, The lateral adjustment unit also includes a protective plate and a connector. The protective plate is fixedly connected to the placement rack and is located on one side of the placement rack. The connector is fixedly connected to the protective plate and is located on the side of the protective plate.
Citation Information
Patent Citations
Support for hip joint surgery
CN221712618U