Surgical support device

Abstract

The utility model provides an operation support device, including base, link subassembly, linear motion subassembly and at least two locking mechanism, the linear motion subassembly includes transmission piece and with the slide block of base sliding connection, the slide block can drive the transmission piece to move, and the locking mechanism is connected with the transmission piece. One end of the connecting rod assembly is rotationally connected to the base, the other end of the connecting rod assembly is rotationally connected to the sliding block, and the at least two locking mechanisms are used for locking the transmission part. According to the operation supporting device provided by the utility model, the at least two locking mechanisms are used for locking the transmission piece of the linear moving assembly, so that the connecting rod assembly is at least doubly locked when being unfolded, and even if one locking mechanism fails, the connecting rod assembly can still be kept in an unfolded state; therefore, normal use of the operation supporting device in the operation process can be guaranteed, and reliability of the operation supporting device is improved.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and more specifically, relates to a surgical support device. Background Art

[0002] In some medical surgeries on the head, a surgical support device is needed to support the head and related parts, so that the head and related parts remain in a relatively stable state, which is convenient for doctors to perform the surgery. After the surgery is completed, the surgical support device can be folded and stored to avoid taking up too much storage space.

[0003] However, due to the foldable feature, this foldable surgical support device may change from a use state to a folded state during surgery, resulting in the inability to support the head and related parts, and thus having low reliability. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a surgical support device to solve the technical problem of low reliability of surgical support devices in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a surgical support device, including a base, a connecting rod assembly, a linear motion assembly and at least two locking mechanisms, the linear motion assembly includes a transmission member and a slider slidably connected to the base, the slider can drive the transmission member to move, one end of the connecting rod assembly is rotatably connected to the base, and the other end of the connecting rod assembly is rotatably connected to the slider, and at least two of the locking mechanisms are used to lock the transmission member.

[0006] In the above scheme, the surgical support device includes a base, a connecting rod assembly, a linear motion assembly and at least two locking mechanisms. The slider of the linear motion assembly can slide relative to the base. One end of the connecting rod assembly is rotatably connected to the base, and the other end is rotatably connected to the slider. The connecting rod assembly can be unfolded and folded by sliding the slider on the base. At least two locking mechanisms are used to lock the transmission member of the linear motion assembly, so that the connecting rod assembly is at least doubly locked when unfolded. Even if one of the locking mechanisms fails, the connecting rod assembly can still be kept in the unfolded state, thereby ensuring the normal use of the surgical support device during surgery and improving its reliability.

[0007] Optionally, the locking mechanism includes a brake, and the brake is used to clamp and brake the transmission member.

[0008] In the above scheme, the transmission member is controlled by the setting of the brake. The brake principle and brake structure of the brake are relatively simple, widely used, have high starting torque and good braking performance, and have high braking reliability. In particular, when the transmission member is a shaft structure, the brake is more suitable for holding and braking the transmission member.

[0009] Optionally, the locking mechanism includes a ratchet, a movable part, an electromagnet and an elastic part, the ratchet is fixedly connected to the transmission part, the movable part has a pawl for braking the ratchet, and a magnetic part is provided on the movable part. The movable part can move in a first direction under the magnetic force of the magnetic part and the electromagnet, and the movable part can move in a second direction under the elastic force of the elastic part, so that the pawl and the ratchet are locked or unlocked with each other, and the first direction and the second direction are opposite.

[0010] In the above scheme, the position of the movable part is controlled by the magnetic attraction between the electromagnet and the magnetic part and the elastic force of the elastic part, so as to achieve locking and unlocking of the ratchet. The locking mechanism is an electric control mechanism, which is convenient for automatic control and has a relatively simple structure.

[0011] Optionally, the movable member is rotatably connected to the base.

[0012] In the above scheme, when the movable part is rotatably connected to the base, the connection structure is relatively simple and there is no need to design a rotating guide part.

[0013] Optionally, when the electromagnet is energized, the magnetic force between the electromagnet and the magnetic member causes the pawl and the ratchet to unlock each other.

[0014] In the above scheme, when the locking mechanism is in the locked state, the electromagnet is powered off, and when the locking mechanism is in the unlocked state, the electromagnet is powered on. The surgical support device needs to keep the locking mechanism in the locked state when it is in the deployed state and the stored state. The surgical support device only needs to keep the locking mechanism in the unlocked state when the state is switched. Therefore, the locking mechanism is in the locked state for a longer time. The locked state corresponds to the electromagnet being powered off, and the electromagnet needs to be powered on for a shorter time to avoid excessive heating and failure of the electromagnet.

[0015] Optionally, the transmission member includes a rotatable screw rod, the slider is threadedly connected to the screw rod, and the locking mechanism is used to lock and brake the screw rod.

[0016] In the above scheme, the transmission connection between the screw rod and the slider has high transmission accuracy and the screw rod rotates by itself to keep its position unchanged, which is convenient for braking.

[0017] Optionally, there are two locking mechanisms, and the two locking mechanisms are respectively used to lock and brake both ends of the screw rod.

[0018] In the above scheme, the two locking mechanisms are respectively used to lock the two ends of the brake screw rod. Such a layout will not affect the sliding of the slider on the screw rod, so as to avoid interference with the slider.

[0019] Optionally, the surgical support device further includes a switch control key, a controller, and a driving circuit module for driving the locking mechanism, and the switch control key controls the driving circuit module through the controller to achieve locking and unlocking of the locking mechanism.

[0020] In the above scheme, when the surgical support device needs to be used, the switch control key is triggered, the controller receives the trigger signal, and sends an unlocking signal to the drive circuit module, driving the locking mechanism to unlock, and then pulls the connecting rod assembly to unfold the surgical support device. After unfolding in place, the controller sends a signal to the drive circuit module to drive the locking mechanism to lock. After the surgical support device is used, the switch control key is triggered, the controller receives the trigger signal, and sends an unlocking signal to the drive circuit module, driving the locking mechanism to unlock, and then pulls the connecting rod assembly to fold and store the surgical support device. After folding in place, the controller sends a signal to the drive circuit module to drive the locking mechanism to lock.

[0021] Optionally, the slider has a first limit position and a second limit position, at least one of the first limit position and the second limit position is provided with a limit switch, and the surgical support device further includes a detection circuit module, and the limit switch feeds back the position information of the slider to the controller through the detection circuit module.

[0022] In the above scheme, when the slider touches the limit switch, the limit switch sends a signal to the controller through the detection circuit module, and the controller sends a corresponding execution signal to the drive circuit module according to the corresponding signal. Among them, the limit switch is electrically connected to the detection circuit module, and the detection circuit module is electrically connected to the controller.

[0023] Optionally, the connecting rod assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the base, the other end of the first connecting rod is rotatably connected to the second connecting rod, and one end of the second connecting rod away from the first connecting rod is rotatably connected to the slider.

[0024] In the above scheme, the crank slider mechanism formed by the connecting rod assembly, the slider and the base. When the connecting rod assembly is unfolded, a triangular support structure is formed between the first connecting rod, the second connecting rod and the base, so that the structure is relatively stable and the support effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A three-dimensional structural diagram of a surgical support device provided by an embodiment of the utility model (in an unfolded state);

[0027] Figure 2 A cross-sectional view of a surgical support device provided by an embodiment of the utility model (in an expanded state);

[0028] Figure 3 A front view of the locking mechanism provided by an embodiment of the utility model;

[0029] Figure 4 A three-dimensional structural diagram of a locking mechanism provided in an embodiment of the utility model;

[0030] Figure 5 A control circuit block diagram of a surgical support device provided by an embodiment of the utility model;

[0031] Figure 6 A control flow chart of the surgical support device provided by an embodiment of the utility model when it is deployed;

[0032] Figure 7 This is a control flow chart of the folding of the surgical support device provided in an embodiment of the utility model.

[0033] Among them, the reference numerals in the figure are:

[0034] 1-base; 2-connecting rod assembly; 21-first connecting rod; 22-second connecting rod; 23-handle; 3-linear moving assembly; 31-slider; 32-transmission member; 4-locking mechanism; 41-ratchet; 42-movable member; 421-pawl; 43-magnetic member; 44-electromagnet; 45-elastic member; 46-base plate; 5-limit switch. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] During surgical treatment, the affected area needs to be kept in a relatively stable state to ensure the position accuracy of the surgical area. Especially when performing head medical surgery, since the head can rotate relative to the body, the stability of the head needs to be ensured in order to perform high-precision surgery. The surgical support device can provide stable support for the head and related parts, so that the head and related parts remain in a relatively stable state, which is convenient for doctors to perform surgery and improves surgical accuracy. After the operation is completed, the surgical support device can be folded and stored to avoid taking up too much storage space.

[0040] This foldable and storable surgical support device has a folded state (storage state) and an unfolded state (use state). When the surgical support device needs to be used, it can be changed from the folded state to the unfolded state and kept in the unfolded state for use. However, due to the foldable feature, during the surgical use, the surgical support device may change from the use state to the folded state, resulting in the inability to support the head and related parts, and the reliability is low. In order to overcome the above technical problems, the utility model proposes a new surgical support device.

[0041] The surgical support device provided by the embodiment of the utility model is now described.

[0042] Please also read Figure 1 and Figure 2The surgical support device includes a base 1, a connecting rod assembly 2, a linear motion assembly 3 and at least two locking mechanisms 4.

[0043] The base 1 is the main installation structure of the surgical support device. The base 1 can be used directly for head support, or the base 1 can be installed on an external structure such as a headrest, and the head can be supported on the headrest.

[0044] The linear moving assembly 3 includes a transmission member 32 and a slider 31. The slider 31 is slidably connected to the base 1, and the slider 31 can drive the transmission member 32 to move. Specifically, when the connecting rod assembly 2 moves, the slider 31 can slide relative to the base 1. During the sliding process of the slider 31, the transmission member 32 can be driven to move, so that the surgical support device can be switched between the folded state and the unfolded state. It should be noted that when the transmission member 32 is locked, the slider 31 is also locked accordingly, so that the surgical support device can maintain the posture unchanged in the use state, and achieve stable support for the head.

[0045] The connecting rod assembly 2 has a folded state and an unfolded state, which correspond to the folded state and the unfolded state of the surgical support device. That is, when the connecting rod assembly 2 is in the folded state, the surgical support device is in the folded state, and when the connecting rod assembly 2 is in the unfolded state, the surgical support device is in the unfolded state. One end of the connecting rod assembly 2 is rotatably connected to the base 1, and the other end of the connecting rod assembly 2 is rotatably connected to the slider 31. The movement of the slider 31 relative to the base 1 enables the connecting rod assembly 2 to switch between the folded state and the unfolded state.

[0046] The number of locking mechanisms 4 is at least two, and each locking mechanism 4 is used to lock the transmission member 32. When the transmission member 32 is locked, the slider 31 is also locked, so that the connecting rod assembly 2 can be kept in a folded state or an unfolded state, and the original state is kept unchanged, preventing the surgical support device from switching from the unfolded state to the folded state during the operation. Among them, the locking mechanism 4 has a locked state and an unlocked state. When the locking mechanism 4 is in the locked state, it can lock and brake the transmission member 32. When the locking mechanism 4 is in the unlocked state, the transmission member 32 can move freely. Since at least two locking mechanisms 4 are provided, even if one of the locking mechanisms 4 fails, the other locking mechanisms 4 can also lock the transmission member 32 to prevent the surgical support device from switching its state. In this way, the locking of the transmission member 32 has multiple guarantees, so that the possibility of state switching of the surgical support device during use is small, thereby ensuring the accuracy and safety of the operation.

[0047] Specifically, when the surgical support device needs to be used, the locking mechanism 4 is switched to the unlocked state, the connecting rod assembly 2 is pulled, the slider 31 slides relative to the base 1, and the transmission member 32 moves accordingly. When the surgical support device is unfolded to the unfolded state, the locking mechanism 4 is switched to the locked state, the surgical support device is locked, and the connecting rod assembly 2, the transmission member 32, and the slider 31 are all locked, so that the surgical support device remains in the unfolded state. After the surgical support device is used, the locking mechanism 4 is switched to the unlocked state, the connecting rod assembly 2 is pulled, the slider 31 slides relative to the base 1, and the transmission member 32 moves accordingly, the surgical support device moves to the folded state, and then the locking mechanism 4 is switched to the locked state, and the surgical support device is locked in the storage state, which is convenient for storage and next use.

[0048] The surgical support device in the above embodiment includes a base 1, a connecting rod assembly 2, a linear motion assembly 3 and at least two locking mechanisms 4. The slider 31 of the linear motion assembly 3 can slide relative to the base 1. One end of the connecting rod assembly 2 is rotatably connected to the base 1, and the other end is rotatably connected to the slider 31. The expansion and folding of the connecting rod assembly 2 are achieved by sliding the slider 31 on the base 1. At least two locking mechanisms 4 are used to lock the transmission member 32 of the linear motion assembly 3, so that the connecting rod assembly 2 is at least doubly locked when it is expanded. Even if one of the locking mechanisms 4 fails, the connecting rod assembly 2 can still be maintained in the expanded state, thereby ensuring the normal use of the surgical support device during surgery and improving its reliability.

[0049] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 The locking mechanism 4 includes a brake, which is used to hold the moving end of the brake transmission member 32, so as to brake the transmission member 32. The brake has a locking state and an unlocking state. When the brake is in the locking state, the transmission member 32 is held tightly, and the transmission member 32 is braked. When the brake is in the unlocking state, it is separated from the transmission member 32, and the transmission member 32 can move freely. Among them, the locking mechanism 4 in this embodiment can be called a first locking mechanism.

[0050] In the above embodiment, the transmission member 32 is controlled by the setting of the holding brake. The braking principle and braking structure of the holding brake are relatively simple, and the application is relatively wide. It has a high starting torque and good braking performance, and the braking reliability is relatively high. In particular, when the transmission member 32 is a shaft-shaped structure, the holding brake is more suitable for holding and braking the transmission member 32.

[0051] In some embodiments, the brake device includes a dynamic friction plate, a static friction plate, a dynamic iron core, a static iron core and a brake spring. One end of the brake spring is fixedly arranged and the other end is fixedly connected to the dynamic friction plate. The static iron core is fixedly arranged. The dynamic iron core is fixedly connected to the dynamic friction plate. One of the static iron core and the dynamic iron core is provided with an excitation coil. When the power is on, the dynamic iron core can move toward the static iron core, so that the dynamic friction plate is away from the static friction plate, and the brake device is in an unlocked state. When the power is off, the dynamic iron core is away from the static iron core under the action of the brake spring, and the dynamic friction plate and the static friction plate abut against each other, and the brake device is in a locked state. The transmission member 32 is located between the dynamic friction plate and the static friction plate. When the dynamic friction plate and the static friction plate are close to each other and abut against each other, the transmission member 32 brakes. The brake device in this embodiment is a power-off braking type electromagnetic clutch brake device, and can also be a power-on braking type electromagnetic clutch brake device. The brake device in this embodiment is only a structural description of one type of brake device, and other types of brake devices can also be used.

[0052] In some embodiments of the present invention, please refer to Figure 3 Figure 4 The locking mechanism 4 includes a ratchet 41, a movable part 42, an electromagnet 44 and an elastic part 45. The ratchet 41 is fixedly connected to the moving end of the transmission part 32. When the ratchet 41 is braked, the transmission part 32 is braked accordingly. A pawl 421 is provided on the movable part 42, and the pawl 421 cooperates with the ratchet 41 to brake the ratchet 41. A magnetic part 43 is also fixed on the movable part 42. The movable part 42 can move in a first direction under the magnetic force of the magnetic part 43 and the electromagnet 44, and the movable part 42 can move in a second direction under the elastic force of the elastic part 45, and the first direction and the second direction are opposite. When the electromagnet 44 is energized, a magnetic force will be generated between the magnetic part 43 and the electromagnet 44, so that the movable part 42 moves in the first direction, thereby causing the pawl 421 to brake or unlock the ratchet 41. When the electromagnet 44 is powered off, the magnetic force between the magnetic member 43 and the electromagnet 44 disappears, and the movable member 42 moves in the second direction under the elastic force of the elastic member 45, so that the pawl 421 brakes or unlocks the ratchet 41. The locking mechanism 4 in this embodiment can be called a second locking mechanism.

[0053] The position of the movable member 42 is controlled by the magnetic attraction between the electromagnet 44 and the magnetic member 43 and the elastic force of the elastic member 45, thereby locking and unlocking the ratchet 41. The locking mechanism 4 is an electric control mechanism, which is convenient for automatic control and has a relatively simple structure.

[0054] In some embodiments, when the electromagnet 44 is energized, the magnetic force between the electromagnet 44 and the magnetic member 43 causes the pawl 421 to be separated from the ratchet 41. In this way, when the locking mechanism 4 is in the locked state, the electromagnet 44 is de-energized, and when the locking mechanism 4 is in the unlocked state, the electromagnet 44 is energized. When the surgical support device is in the deployed state and the stored state, the locking mechanism 4 needs to be kept in the locked state. The surgical support device only needs the locking mechanism 4 to be kept in the unlocked state when the state is switched. Therefore, the locking mechanism 4 is in the locked state for a longer time. The locked state corresponds to the electromagnet 44 being de-energized, and the electromagnet 44 needs to be energized for a shorter time to avoid the electromagnet 44 from overheating and failing.

[0055] Optionally, the first direction is a direction away from the ratchet 41, and the second direction is a direction close to the ratchet 41. When the electromagnet 44 is powered on, a magnetic attraction is generated between the magnetic member 43 and the electromagnet 44, so that the movable member 42 moves away from the ratchet 41 and toward the electromagnet 44, and the pawl 421 on the movable member 42 is disengaged from the ratchet 41, so that the ratchet 41 is in an unlocked state. When the electromagnet 44 is powered off, the magnetic force between the magnetic member 43 and the electromagnet 44 disappears, and the elastic member 45 pushes the movable member 42 to move toward the ratchet 41, and the pawl 421 on the movable member 42 is inserted between two adjacent ratchet teeth of the ratchet 41, and the ratchet 41 is in a locked state. In this embodiment, the ratchet 41 and the electromagnet 44 are respectively arranged on opposite sides of the movable member 42, that is, when the movable member 42 approaches the electromagnet 44, it moves away from the ratchet 41 synchronously; when the movable member 42 moves away from the electromagnet 44, it moves close to the ratchet 41 synchronously.

[0056] In some embodiments, when the electromagnet 44 is powered on, the magnetic force between the electromagnet 44 and the magnetic member 43 causes the pawl 421 to be locked with the ratchet 41. Thus, when the locking mechanism 4 is in the locked state, the electromagnet 44 is powered on, and when the locking mechanism 4 is in the unlocked state, the electromagnet 44 is powered off. When the surgical support device is in the deployed state and the stored state, the locking mechanism 4 needs to be kept in the locked state, and the surgical support device only needs the locking mechanism 4 to be kept in the unlocked state when the state is switched.

[0057] Optionally, the first direction is a direction approaching the ratchet 41, and the second direction is a direction away from the ratchet 41. When the electromagnet 44 is powered on, a magnetic attraction is generated between the magnetic member 43 and the electromagnet 44, so that the movable member 42 approaches the ratchet 41 and moves toward the electromagnet 44, and the pawl 421 on the movable member 42 is inserted between two adjacent ratchet teeth of the ratchet 41, so that the ratchet 41 is in a locked state. When the electromagnet 44 is powered off, the magnetic force between the magnetic member 43 and the electromagnet 44 disappears, the elastic member 45 pushes the movable member 42 to move away from the ratchet 41, the pawl 421 on the movable member 42 is disengaged from the ratchet 41, and the ratchet 41 is in an unlocked state. In this embodiment, the ratchet 41 and the electromagnet 44 are arranged on the same side of the movable member 42, that is, when the movable member 42 approaches the electromagnet 44, it approaches the ratchet 41 synchronously; when the movable member 42 moves away from the electromagnet 44, it moves away from the ratchet 41 synchronously.

[0058] In some embodiments, the magnetic force between the electromagnet 44 and the magnetic member 43 is a magnetic attraction force or a magnetic repulsion force.

[0059] In some embodiments, the magnetic member 43 is an iron core or a permanent magnet.

[0060] In some embodiments, one end of the elastic member 45 is fixed to the electromagnet 44, and the other end is used to abut against the magnetic member 43. Alternatively, one end of the elastic member 45 is fixed to the magnetic member 43, and the other end abuts against the electromagnet 44.

[0061] In some embodiments of the present invention, please refer to Figure 3 and Figure 4 The movable member 42 is rotatably connected to the base 1. The movable member 42 can be directly rotatably connected to the base 1 or indirectly rotatably connected to the base 1. When the movable member 42 is rotatably connected to the base 1, the connection structure is relatively simple, and no rotating guide member needs to be designed. In other embodiments, the movable member 42 can also be slidably connected to the base 1.

[0062] In some embodiments, the locking mechanism 4 further includes a base plate 46, the base plate 46 is fixed on the base 1, the movable member 42 is rotatably connected to the base plate 46, and the electromagnet 44 can also be fixed on the base plate 46. The provision of the base plate 46 facilitates the installation and assembly of the locking mechanism 4.

[0063] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 The number of the locking mechanisms 4 is two, one of which is a first locking mechanism 4 , and the other is a second locking mechanism 4 .

[0064] In some embodiments of the present invention, there are two locking mechanisms 4 , and both locking mechanisms 4 are first locking mechanisms, or both locking mechanisms 4 are second locking mechanisms.

[0065] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 The transmission member 32 includes a rotatable screw rod, the slider 31 is threadedly connected to the screw rod, and the locking mechanism 4 is used to lock and brake the screw rod. When the slider 31 slides, it can drive the screw rod to rotate, and by braking the screw rod, the surgical support device can be locked. The transmission connection between the screw rod and the slider 31 (with internal threads) has high transmission accuracy and the screw rod rotates by itself, keeping its position unchanged, which is convenient for braking.

[0066] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 The number of the locking mechanisms 4 is two, and the two locking mechanisms 4 are used to lock the two ends of the brake screw rod. Such a layout will not affect the sliding of the slider 31 on the screw rod, so as to avoid interference with the slider 31.

[0067] In some embodiments of the present invention, please refer to Figure 5 The surgical support device also includes a switch control key, a controller, and a drive circuit module for driving the locking mechanism 4. The switch control key controls the drive circuit module through the controller to achieve the locking and unlocking of the locking mechanism 4. In other words, the switch control key is used to control the locking and unlocking of the locking mechanism 4, so that the surgical support device can be kept in a locked state and a free movable state respectively (the connecting rod assembly 2 can drive the slider 31 and the transmission member 32 to move). The controller is used to receive signals from the switch control key and other mechanisms, and send signals to control the drive circuit module. Among them, the switch control key is electrically connected to the controller, and the drive circuit module is electrically connected to the locking mechanism 4 and the controller.

[0068] In some embodiments, the switch control key may be a mechanical key, such as a button, a knob, a toggle key, etc. The switch control element may also be a virtual key, such as a capacitive touch key, a click key on an operating system, etc.

[0069] In some embodiments, when the surgical support device needs to be used, the switch control key is triggered, the controller receives the trigger signal, and sends an unlock signal to the drive circuit module, drives the locking mechanism 4 to unlock, and then pulls the connecting rod assembly 2 to unfold the surgical support device. After the surgical support device is unfolded, the controller sends a signal to the drive circuit module to drive the locking mechanism 4 to lock. After the surgical support device is used, the switch control key is triggered, the controller receives the trigger signal, and sends an unlock signal to the drive circuit module, drives the locking mechanism 4 to unlock, and then pulls the connecting rod assembly 2 to fold and store the surgical support device. After folding, the controller sends a signal to the drive circuit module to drive the locking mechanism 4 to lock.

[0070] In some embodiments of the present invention, please refer to Figure 5 The slider 31 has a first limit position and a second limit position. When the slider 31 is in the first limit position, the surgical support device is in an unfolded state, and when the slider 31 is in the second limit position, the surgical support device is in a folded state. At least one of the first limit position and the second limit position is provided with a limit switch 5, and the surgical support device further includes a detection circuit module, and the limit switch 5 feeds back the position information of the block to the controller through the detection circuit module. Specifically, when the slider 31 touches the limit switch 5, the limit switch 5 sends a signal to the controller through the detection circuit module, and the controller sends a corresponding execution signal to the drive circuit module according to the corresponding signal. Among them, the limit switch 5 is electrically connected to the detection circuit module, and the detection circuit module is electrically connected to the controller.

[0071] See also Figure 6 When using the surgical support device, it is necessary to stretch the surgical support device from the folded state to the unfolded state. First, trigger the switch control key, and the locking mechanism 4 switches to the unlocked state. At the same time, s1 = 0s, the operator pulls the connecting rod assembly 2 to expand it. If the slider 31 moves to trigger the limit switch 5 at the first extreme position, the locking mechanism 4 switches to the locking state. If the limit switch 5 at the first extreme position is not triggered, the timing continues until t s1 = T1 and no re-trigger signal of the switch control key is received during the timing process, the locking mechanism 4 switches to the locked state. In this way, the locking mechanism 4 can be prevented from being kept in the unlocked state for a long time, thereby preventing the locking mechanism 4 from overheating and causing its performance to deteriorate or even fail. Among them, T1 can be 10s, 20s, 30s, etc., which can be configured according to the application scenario. Generally speaking, T1 is greater than the time required for the surgical support device to be stretched from the folded state to the unfolded state under normal circumstances.

[0072] See also Figure 7 After the surgical support device is used, it is necessary to retract the surgical support device from the unfolded state to the folded state. First, trigger the switch control key, and the locking mechanism 4 switches to the unlocked state. At the same time, s2 = 0s, the operator pulls the connecting rod assembly 2 to fold it. If the slider 31 moves to the limit switch 5 that triggers the second limit position, then from t s3 =Start timing at 0s. If it continues until t s3 = T3, if no re-triggering signal from the switch control key is received, the locking mechanism 4 switches to the locking state. If the limit switch 5 at the second extreme position is not triggered, the timing continues until t s2= T2, and then the locking mechanism 4 switches to the locked state. In this way, the locking mechanism 4 can be prevented from remaining in the unlocked state for a long time, thereby preventing the locking mechanism 4 from overheating and causing its performance to deteriorate or even fail. Among them, T2 can be 10s, 20s, 30s, etc., which can be configured according to the application scenario. Generally speaking, T2 is greater than the time required for the surgical support device to stretch from the unfolded state to the folded state under normal circumstances. T3 can be 1s, 2s, 3s, etc., which can be configured according to the application scenario.

[0073] When the surgical support device is close to being in a fully folded state, the movement of the slider 31 is relatively fast. It is possible that after the slider 31 triggers the limit switch 5 at the second extreme position, the surgical support device has not been completely folded. Therefore, after the controller receives the signal of the limit switch 5 at the second extreme position, the controller starts from t s2 =0s starts timing to timing t s3 =T3, and then switch the locking mechanism 4 to the locking state, giving the operator T3 time to adjust the surgical support device, so that the surgical support device is completely folded, and then switch the locking mechanism 4 to the locking state.

[0074] In some embodiments of the present invention, please refer to Figure 1 and Figure 2 The connecting rod assembly 2 includes a first connecting rod 21 and a second connecting rod 22. One end of the first connecting rod 21 is rotatably connected to the base 1, the other end of the first connecting rod 21 is rotatably connected to the second connecting rod 22, and one end of the second connecting rod 22 away from the first connecting rod 21 is rotatably connected to the slider 31. Since the slider 31 is slidably connected to the base 1, the mechanism formed by the connecting rod assembly 2, the slider 31 and the base 1 is a crank slider mechanism. When the connecting rod assembly 2 is unfolded, a triangular support structure is formed between the first connecting rod 21, the second connecting rod 22 and the base 1, so that the structure is relatively stable and the support effect is better.

[0075] In some embodiments, the rotational connection between the first connecting rod 21 and the second connecting rod 22 is called a hinge. The first connecting rod 21 extends along its length direction to exceed the hinge, forming a handle 23 that is convenient for the operator to pull. Alternatively, the second connecting rod 22 extends along its length direction to exceed the hinge, forming a handle 23 that is convenient for the operator to pull.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A surgical support device, characterized in that: The invention comprises a base (1), a connecting rod assembly (2), a linear motion assembly (3) and at least two locking mechanisms (4); the linear motion assembly (3) comprises a transmission member (32) and a slider (31) slidably connected to the base (1); the slider (31) can drive the transmission member (32) to move; one end of the connecting rod assembly (2) is rotatably connected to the base (1); the other end of the connecting rod assembly (2) is rotatably connected to the slider (31); and at least two of the locking mechanisms (4) are used to lock the transmission member (32).

2. The surgical support device according to claim 1, characterized in that: The locking mechanism (4) comprises a brake, and the brake is used to clamp and brake the transmission member (32).

3. The surgical support device according to claim 1, characterized in that: The locking mechanism (4) comprises a ratchet (41), a movable part (42), an electromagnet (44) and an elastic part (45); the ratchet (41) is fixedly connected to the transmission part (32); the movable part (42) has a pawl (421) for braking the ratchet (41); a magnetic part (43) is arranged on the movable part (42); the movable part (42) can move in a first direction under the magnetic force of the magnetic part (43) and the electromagnet (44); the movable part (42) can move in a second direction under the elastic force of the elastic part (45), so that the pawl (421) and the ratchet (41) are mutually locked or unlocked, and the first direction and the second direction are opposite.

4. The surgical support device according to claim 3, characterized in that: The movable member (42) is rotatably connected to the base (1).

5. The surgical support device according to claim 3, characterized in that: When the electromagnet (44) is energized, the magnetic force between the electromagnet (44) and the magnetic member (43) causes the pawl (421) and the ratchet wheel (41) to unlock each other.

6. The surgical support device according to claim 1, characterized in that: The transmission member (32) comprises a rotatable screw rod, the slider (31) is threadedly connected to the screw rod, and the locking mechanism (4) is used to lock and brake the screw rod.

7. The surgical support device according to claim 6, characterized in that: The number of the locking mechanisms (4) is two, and the two locking mechanisms (4) are respectively used to lock and brake the two ends of the screw rod.

8. The surgical support device according to claim 1, characterized in that: The surgical support device further comprises a switch control key, a controller and a drive circuit module for driving the locking mechanism (4); the switch control key controls the drive circuit module via the controller to achieve locking and unlocking of the locking mechanism (4).

9. The surgical support device according to claim 8, characterized in that: The slider (31) has a first limit position and a second limit position, at least one of the first limit position and the second limit position is provided with a limit switch, and the surgical support device further comprises a detection circuit module, and the limit switch feeds back the position information of the slider (31) to the controller via the detection circuit module.

10. The surgical support device according to any one of claims 1 to 9, characterized in that: The connecting rod assembly (2) comprises a first connecting rod (21) and a second connecting rod (22), one end of the first connecting rod (21) is rotatably connected to the base (1), the other end of the first connecting rod (21) is rotatably connected to the second connecting rod (22), and one end of the second connecting rod (22) away from the first connecting rod (21) is rotatably connected to the slider (31).

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