Head position holding device and its use in head surgery

Abstract

The application relates to the technical field of medical devices, in particular to a head position keeping device and application thereof in head surgery, which can be detachably installed on an operating table and comprises a connecting frame, a first adjusting structure and a second adjusting structure are arranged on the connecting frame, a plurality of groups of insertion grooves and first locking pieces are arranged on the first adjusting structure and the second adjusting structure; a keeping assembly, the keeping assembly has two position states which are switched by being pulled, and a guide shaft is arranged on the keeping assembly; a plurality of groups of insertion rods are arranged on one side of the elastic telescopic assembly which faces the first adjusting structure and the second adjusting structure, the insertion rods can be inserted into corresponding insertion grooves when the keeping assembly is switched between the two groups of position states; and a locking structure, when the keeping assembly acts to make the first adjusting structure or the second adjusting structure act, the locking structure can lock the second adjusting structure or the first adjusting structure, so that the difficulty of slightly adjusting the position of the head of a patient is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a head positioning device and its application in head surgery. Background Technology

[0002] A craniocerebral surgical head frame is an instrument specifically designed for craniocerebral surgery. Its importance lies in its ability to stabilize the patient's head, providing a stable and accurate operating environment. During the surgical procedure, the craniocerebral surgical head frame plays a crucial role.

[0003] During the surgery, firstly, the craniocerebral surgical head frame can effectively fix the patient's head and keep the surgical area stable; secondly, the use of the craniocerebral surgical head frame can greatly improve the safety and accuracy of the surgery.

[0004] The most common type of head frame used in craniocerebral surgery is the adjustable cranial frame, which employs a three-screw fixation system. The three screws apply pressure to the head simultaneously to achieve a stable fixation effect. The adjustable cranial frame is usually connected to the operating table via an adjustment frame. By adjusting the adjustable cranial frame and the adjustment frame, fine adjustments can be made when there are certain deviations in the patient's head position to meet the surgical requirements. However, in actual operation, it has been found that in order to ensure the optimal position of the patient's head, multiple angle adjustments are required, and each angle adjustment needs to be controlled individually, resulting in poor convenience and long adjustment time. Summary of the Invention

[0005] The purpose of this invention is to provide a head positioning device and its application in head surgery to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A head positioning device, detachably mounted on the operating table, includes:

[0008] A connecting frame is connected to the operating table. The connecting frame is provided with a first adjustment structure and a second adjustment structure for adjusting the position of the patient's head. Both the first adjustment structure and the second adjustment structure are provided with multiple sets of insertion slots and a first locking element.

[0009] A retaining component is connected to the connecting frame. The retaining component has two position states that can be switched by being pulled, and a guide shaft is provided on the retaining component.

[0010] An elastic telescopic component is slidably disposed on the guide shaft. The elastic telescopic component is provided with multiple sets of insertion rods on the side facing the first adjustment structure and the second adjustment structure. When the holding component switches between two sets of position states, the insertion rods can be inserted into the corresponding insertion slots, thereby driving the first adjustment or the second adjustment structure to move.

[0011] A locking structure is connected to the elastic telescopic component. When the retaining component is activated, causing the first adjustment action or the second adjustment structure to be activated, the locking structure can lock the second adjustment structure or the first adjustment action.

[0012] As a further aspect of the present invention: the first adjustment structure includes a spiral groove disposed on the connecting frame and a sleeve tube that rotatably engages with the connecting frame, wherein the sleeve tube has a transverse groove along its length.

[0013] The first adjustment structure further includes a collar slidably sleeved on the sleeve tube, and an engagement shaft is formed on the inner wall of the collar, which penetrates the transverse groove and extends into the spiral groove.

[0014] The insertion groove is provided on the outer wall of the collar.

[0015] As a further embodiment of the present invention: the second adjustment structure includes an arc-shaped member connected to the sleeve tube via a connecting plate, a clamping part slidably mounted on the arc-shaped member, the clamping part penetrating the arc-shaped member and connected to a first grooved wheel;

[0016] The second adjustment structure also includes a guide rod connecting the connecting plate, and the guide rod is slidably mounted with a first transverse member. The first transverse member is provided with a vertical groove, and the first grooved wheel can roll in the vertical groove.

[0017] The first transverse component is provided with the insertion groove.

[0018] As a further embodiment of the present invention: the retaining assembly includes a groove disposed on the connecting plate, a slider is slidably mounted in the groove, the slider is fixedly connected to the guide shaft, two sets of sliding sleeves are slidably mounted on the guide shaft, and two sets of second cylindrical springs are sleeved on the guide shaft, one end of the second cylindrical spring is connected to the sliding sleeve, and the other end is connected to the slider;

[0019] The retaining assembly also includes a detachable side plate mounted on the connecting plate, the side plate having a "V" groove, and a convex shaft rotatably mounted on the sliding sleeve can roll within the "V" groove.

[0020] As a further embodiment of the present invention: the elastic telescopic component includes a second transverse member slidably mounted on the guide shaft, the second transverse member having a plurality of sets of follower sleeves symmetrically arranged thereon, a connecting rod slidably mounted inside the follower sleeve, and a first columnar spring being provided inside the follower sleeve, the two ends of the first columnar spring being respectively connected to the inner wall of the follower sleeve and the end of the connecting rod.

[0021] The insertion rod is provided at the end of the connecting rod away from the second lateral member.

[0022] As a further embodiment of the present invention: a screw adjusting device is provided on the connecting plate, and a sliding connection portion is formed on the screw adjusting device;

[0023] The second transverse member has a connecting seat on its side, which can slide within the sliding connection portion.

[0024] As a further embodiment of the present invention: the locking structure includes a lifting frame that is slidably connected to the side plate, and multiple sets of second locking members are equidistantly arranged at both ends of the lifting frame in the horizontal direction. The second locking members are respectively adapted to the first locking members arranged on the collar and the first transverse member.

[0025] The locking structure also includes a reverse drive assembly connecting the second transverse member and the lifting frame. The reverse drive assembly can cause the lifting frame to move in the opposite direction when the second transverse member performs a lifting action.

[0026] As a further embodiment of the present invention: the reverse drive kit includes two sets of guide portions disposed on both sides of the side plate, one set of the guide portions being slidably connected to the lifting frame, and the other set of guide portions having a lifting plate slidably mounted on it, the lifting plate being able to slide within a hysteresis groove disposed on the side of the second transverse member;

[0027] The reverse drive kit also includes a horizontal groove provided on the side plate, a second groove wheel provided in the horizontal groove, and drive shafts extending outward on both sides of the second groove wheel. One drive shaft can roll in a first inclined groove opened on the lifting plate, and the other drive shaft can roll in a second inclined groove opened on the lifting frame.

[0028] The application of the head positioning device described above in head surgery.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] By setting up retaining components and elastic telescopic components, firstly, the position of the elastic telescopic components can be made more stable, thereby maintaining a stable fit with the first transverse component and the collar. Secondly, by pulling the slider, the position of the elastic telescopic components can be changed, so that when the screw adjustment device is activated, it can drive the first adjustment structure and the second adjustment structure to move respectively, achieving the purpose of switching step adjustment. This avoids the influence between the first adjustment structure or the second adjustment structure when they move, improving the portability and stability of adjusting the patient's head position. At the same time, the two sets of insertion rods have a process of alternating engagement and disengagement with the insertion grooves on the first transverse component and the collar, so as to ensure that the engagement of the insertion rods and the insertion grooves can be seamlessly connected during the position switching of the second transverse component, thereby improving the stability of the switching engagement process and ensuring that after the switching, the second transverse component can drive the corresponding first adjustment structure and the second adjustment structure to move.

[0031] By setting a locking structure, the second adjustment structure / first adjustment structure can perform adjustment actions, while the first adjustment structure / second adjustment structure is in a locked state. This avoids the first adjustment structure / second adjustment structure from moving when the second adjustment structure / first adjustment structure moves, causing a corresponding change in the patient's head position and affecting the accuracy of the adjustment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of one embodiment of a head positioning device.

[0033] Figure 2 This is a schematic diagram of the structure of the head positioning device after the operating table has been removed in one embodiment.

[0034] Figure 3 This is a schematic diagram of the first and second adjustment structures in one embodiment of the head position holding device.

[0035] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle.

[0036] Figure 5 This is a schematic diagram of the first adjustment structure in one embodiment of the head position holding device.

[0037] Figure 6 This is a schematic diagram of the collar structure in one embodiment of the head positioning device.

[0038] Figure 7 An exploded view of the second adjustment structure in one embodiment of the head positioning device.

[0039] Figure 8This is a schematic diagram of the structure of the holding component, the elastic telescopic component, and the locking structure in one embodiment of the head position holding device.

[0040] Figure 9 This is a schematic diagram of the structure of the holding component, the elastic telescopic component, and the locking structure from another angle in one embodiment of the head position holding device.

[0041] Figure 10 This is a schematic diagram of the structure of an elastic telescopic component in one embodiment of a head positioning device.

[0042] Figure 11 This is a schematic diagram of the locking structure in one embodiment of the head position holding device.

[0043] In the diagram: 1. Operating table; 2. Connecting frame; 201. Spiral groove; 3. Sleeve; 301. Horizontal groove; 4. Collar; 401. Fitting shaft; 5. Insertion groove; 6. First locking element; 7. Arc-shaped element; 8. Clamping part; 9. First grooved wheel; 10. Guide shaft; 11. First transverse moving element; 1101. Vertical groove; 12. Screw adjustment device; 1201. Sliding connection part; 13. Slide groove; 14. Slider; 15. Guide shaft; 16. Second transverse moving element; 160 1. Connecting seat; 1602. Hysteresis groove; 17. Follower sleeve; 18. Connecting rod; 1801. Insertion rod; 19. First cylindrical spring; 20. Sliding sleeve; 21. Convex shaft; 22. Second cylindrical spring; 23. Side plate; 2301. "V" groove; 2302. Guide part; 2303. Horizontal groove; 24. Second grooved wheel; 25. Lifting plate; 2501. First inclined groove; 26. Lifting frame; 2601. Second inclined groove; 27. Second locking element. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0046] Please see Figures 1 to 11In this embodiment of the invention, the head position holding device is detachably installed on the operating table 1 and includes: a connecting frame 2, a holding component, an elastic telescopic component, and a locking structure.

[0047] The connecting frame 2 is connected to the operating table 1. The connecting frame 2 is equipped with a first adjustment structure and a second adjustment structure for adjusting the position of the patient's head. Both the first and second adjustment structures are provided with multiple sets of insertion slots 5 and a first locking element 6. Specifically:

[0048] The first adjustment structure includes a spiral groove 201 disposed on the connecting frame 2 and a sleeve tube 3 that rotatably engages with the connecting frame 2. The sleeve tube 3 has a transverse groove 301 along its length.

[0049] The first adjustment structure also includes a collar 4 that is slidably sleeved on the sleeve tube 3, and an interlocking shaft 401 that penetrates the transverse groove 301 and extends into the spiral groove 201 is formed on the inner wall of the collar 4.

[0050] During use, the patient's head is fixed by the second adjustment component. When it is necessary to make a fine adjustment to the position of the patient's head, the control collar 4 moves along the length of the sleeve tube 3, so that the fitting shaft 401 can move along the length of the transverse groove 301. The fitting shaft 401 extends into the spiral groove 201, so that when the collar 4 moves, it can drive the sleeve tube 3 to rotate relative to the connecting frame 2. During this process, the second adjustment component can drive the patient's head to move along his neck (the neck will be bent to a certain extent), thereby adjusting the pitch angle of the patient's head. This allows the optimal pitch angle to be obtained during surgery, ensuring that the surgical part of the patient can be fully exposed.

[0051] The second adjustment structure includes an arc-shaped component 7 connected to the sleeve tube 3 via a connecting plate. A clamping part 8 is slidably mounted on the arc-shaped component 7. The clamping part 8 passes through the arc-shaped component 7 and is connected to a first grooved wheel 9. The clamping part 8 can fix the patient's head so that the patient's head can be more stable during the operation, thereby facilitating the smooth and safe operation.

[0052] The second adjustment structure also includes a guide rod 10 connecting the connecting plate. The guide rod 10 is also slidably mounted with a first transverse member 11. The first transverse member 11 is provided with a vertical groove 1101, and the first groove wheel 9 can roll in the vertical groove 1101.

[0053] The insertion groove 5 is provided on the outer wall of the collar 4 and the first transverse member 11.

[0054] When the first lateral moving member 11 moves along the length of the guide rod 10, the vertical groove 1101 will also move accordingly, and the first groove wheel 9 rolls in the vertical groove 1101, so that when the vertical groove 1101 moves with the first lateral moving member 11, the first groove wheel 9 can "laterally move". This "lateral movement" can be based on the guidance of the arc member 7 to the clamping part 8, so that the first groove wheel 9 can make a circular motion. At this time, the first groove wheel 9 can move in the length of the vertical groove 1101 and drive the clamping part 8 to make a circular motion, so as to drive the patient's head to turn in the axial direction of its neck, so that the patient's head can swing left and right relative to the limbs, thereby achieving the adjustment effect of another position state.

[0055] The above-mentioned settings allow for adjustment of the patient's head tilt angle under the action of the first adjustment structure, enabling the patient's head to rise or fall. Under the action of the second adjustment structure, the direction of head tilt can be adjusted, allowing the patient's head to tilt to the left or right relative to the limbs. The combination of the two allows for multi-directional adjustment of the patient's head, enabling the patient's head to achieve the optimal position during surgery, facilitating lesion exposure while improving surgical safety.

[0056] Please see Figures 8-11 The retaining component is connected to the connecting frame 2. The retaining component has two position states that can be switched by being pulled, and the retaining component is provided with a guide shaft 15.

[0057] The retaining assembly includes a groove 13 disposed on the connecting plate, a slider 14 slidably mounted in the groove 13, the slider 14 being fixedly connected to the guide shaft 15, two sets of sliding sleeves 20 being slidably mounted on the guide shaft 15, and two sets of second cylindrical springs 22 being sleeved on the guide shaft 15, one end of the second cylindrical spring 22 being connected to the sliding sleeve 20, and the other end being connected to the slider 14;

[0058] The retaining assembly also includes a detachable side plate 23 mounted on the connecting plate. The side plate 23 has a "V" groove 2301. The convex shaft 21, which is rotatably mounted on the sliding sleeve 20, can roll within the "V" groove 2301. It should be noted that the guide shaft 15 has a limit groove along its length, and the sliding sleeve 20 has a limit block inside. The cooperation between the limit groove and the limit block can achieve axial locking between the sliding sleeve 20 and the guide shaft 15, ensuring that the convex shaft 21 will not slip out of the "V" groove 2301.

[0059] The connecting plate is provided with a screw adjusting device 12, and a sliding connection portion 1201 is formed on the screw adjusting device 12. The elastic telescopic component is provided with a connecting seat 1601, and the connecting seat 1601 can slide within the sliding connection portion 1201. Thus, after the position of the elastic telescopic component is changed by the guide shaft 15, the connecting seat 1601 can slide within the sliding connection portion 1201, so that when the screw adjusting device 12 is controlled to move, the connecting seat 1601 can be stably driven to move, thereby driving the first transverse member 11 or the collar 4 to move.

[0060] In this embodiment, initially, the second cylindrical spring 22 is in a compressed state. At this time, the sliding sleeve 20 is subjected to a pulling force towards the slider 14 provided by the second cylindrical spring 22, so that the convex shaft 21 can be stably held at the end of the "V" groove 2301 (including the upper end and the lower end). Specifically, when the convex shaft 21 is at the upper end of the "V" groove 2301, since the convex shaft 21 moves synchronously with the sliding sleeve 20, the convex shaft 21 also has a force moving towards the slider 14, so that the convex shaft 21 can act on the side wall of the "V" groove 2301. Considering that when the convex shaft 21 moves towards the "V" groove 2301... When the middle part of 1 moves, the second columnar spring 22 will be further compressed, so that the convex shaft 21 can be stably positioned at the upper end of the "V" groove 2301 without external force. At this time, the guide shaft 15 drives the elastic telescopic component to be at the upper end of the stroke, so that the elastic telescopic component can cooperate with the first transverse member 11. When the screw adjustment device 12 is activated, it drives the second adjustment structure to perform adjustment action. That is, with the cooperation of the second columnar spring 22, the convex shaft 21, and the "V" groove 2301, the position of the elastic telescopic component can be made more stable, so as to maintain a stable cooperation with the first transverse member 11 and the collar 4.

[0061] When the first adjustment structure needs to perform an adjustment action, the operator pulls down the slider 14. At this time, the guide shaft 15 moves downward with the slider 14, allowing the convex shaft 21 to move towards the middle of the "V" groove 2301. This allows the second cylindrical spring 22 to be further compressed. After the convex shaft 21 moves past the middle of the "V" groove 2301, the second cylindrical spring 22 will actively release its elastic potential energy. This allows the guide shaft 15 to drive the elastic telescopic component to switch from the upper end of the stroke to the lower end of the stroke. This allows the elastic telescopic component to switch from the state of cooperating with the first transverse component 11 to the state of switching with the collar 4. When the screw adjustment device 12 is activated, it can drive the first adjustment structure to perform an adjustment action. That is, by pulling the slider 14, the position of the elastic telescopic component can be changed. Thus, when the screw adjustment device 12 is activated, it can drive the first adjustment structure and the second adjustment structure to act respectively, achieving the purpose of switching step-by-step adjustment. This avoids the influence between the first adjustment structure and the second adjustment action, improving the portability and stability of adjusting the patient's head position.

[0062] With the above settings, firstly, the position of the elastic telescopic component can be made more stable, thereby maintaining a stable fit with the first transverse component 11 and the collar 4. Secondly, by pulling the slider 14, the position of the elastic telescopic component can be changed, so that when the screw adjustment device 12 is activated, it can drive the first adjustment structure and the second adjustment structure to move respectively, achieving the purpose of switching step adjustment, avoiding the influence between the first adjustment structure or the second adjustment when they move, and improving the portability and stability of adjusting the patient's head position.

[0063] Please see Figures 8-10 The elastic telescopic component is slidably disposed on the guide shaft 15. The elastic telescopic component is provided with multiple sets of insertion rods 1801 on the side facing the first adjustment structure and the second adjustment structure. When the holding component switches between the two sets of position states, the insertion rods 1801 can be inserted into the corresponding insertion slots 5, thereby driving the first adjustment or the second adjustment structure to move.

[0064] The elastic telescopic assembly includes a second transverse member 16 slidably mounted on the guide shaft 15 and connected to the connecting seat 1601. The second transverse member 16 also has a limit block inside, and multiple sets of follower sleeves 17 are symmetrically arranged on the second transverse member 16. A connecting rod 18 is slidably mounted inside the follower sleeve 17, and a first columnar spring 19 is provided inside the follower sleeve 17. The two ends of the first columnar spring 19 are respectively connected to the inner wall of the follower sleeve 17 and the end of the connecting rod 18. It should also be noted that a through groove is provided on the side of the follower sleeve 17, and a protrusion is provided on the end of the connecting rod 18 away from the insertion rod 1801. The protrusion can slide in the through groove, which can limit the connecting rod 18. In the initial state, the protrusion can abut against the side of the through groove, so that although the first columnar spring 19 is in a compressed state, the connecting rod 18 will not continue to extend outward toward the follower sleeve 17.

[0065] The insertion rod 1801 is provided at the end of the connecting rod 18 away from the second transverse member 16.

[0066] In detail, firstly, the stiffness of the second cylindrical spring 22 is much greater than that of the first cylindrical spring 19. Secondly, both the upper and lower parts of the second transverse member 16 are provided with follower sleeves 17, and the first cylindrical springs 19 inside the follower sleeves 17 are in a compressed state. When the guide shaft 15 is at the upper end of its stroke, the insertion rod 1801 connected to the connecting rod 18 on the upper part of the second transverse member 16 is inserted into the insertion groove 5 on the first transverse member 11. At this time, the first cylindrical spring 19 connected to the connecting rod 18 is further compressed, and the protrusion on the connecting rod 18... The insertion rod 1801 is separated from the side wall of the through groove, so that under the elastic force released by the first columnar spring 19, the insertion rod 1801 can be stably inserted into the insertion groove 5. This allows the second adjustment structure to perform adjustment when the screw adjustment device 12 drives the second transverse member 16 to move. In this state, the insertion rod 1801 on the connecting rod 18 at the lower part of the second transverse member 16 is separated from the insertion groove 5 on the collar 4, thus ensuring that the first adjustment structure is not pulled when the second adjustment structure moves, thereby achieving the purpose of the first adjustment structure and the second adjustment structure moving in separate steps.

[0067] When the first adjustment structure needs to be controlled, the guide shaft 15 is pulled downwards. During this process, the first cylindrical spring 19 located on the upper part of the second transverse member 16 releases its elastic potential energy, keeping the insertion rod 1801 on the upper part of the second transverse member 16 inserted in the insertion groove 5. The first cylindrical spring 19 located on the lower part of the second transverse member 16 remains in its initial state, and the lower insertion rod 1801 moves toward the insertion groove 5 provided on the collar 4, until the convex shaft... After the cam 21 moves to the middle of the "V" groove 2301, the insertion rods 1801 located at the upper and lower parts of the second transverse member 16 are inserted into the corresponding insertion grooves 5. Then, the cam 21 drives the guide shaft 15 to move downward, so that the first columnar spring 19 at the lower part of the second transverse member 16 is compressed, and the insertion rods 1801 at the upper part of the second transverse member 16 can be separated from the insertion grooves 5 on the first transverse member 11, so as to realize the staggered engagement and separation of the two sets of insertion rods 1801 with the corresponding insertion grooves 5.

[0068] Through the above settings, the two sets of insertion rods 1801 have an alternating engagement and disengagement process with the insertion grooves 5 on the first transverse member 11 and the collar 4, so as to ensure that the engagement of the insertion rods 1801 and the insertion grooves 5 can be seamlessly connected during the position switching process of the second transverse member 16, thereby improving the stability during the switching engagement process and ensuring that after the switching, the second transverse member 16 can drive the corresponding first adjustment structure and the second adjustment structure to move.

[0069] Please see Figure 8 , Figure 11 The locking structure is connected to the second transverse member 16. When the holding component is activated, causing the first adjustment action or the second adjustment structure to be activated, the locking structure can lock the second adjustment structure or the first adjustment action.

[0070] The locking structure includes a lifting frame 26 that is slidably connected to the side plate 23. Multiple sets of second locking members 27 are equidistantly arranged at both ends of the lifting frame 26 in the horizontal direction. The second locking members 27 are respectively adapted to the first locking members 6 arranged on the collar 4 and the first transverse member 11.

[0071] The locking structure also includes a reverse drive assembly connecting the second transverse member 16 and the lifting frame 26. The reverse drive assembly can cause the lifting frame 26 to move in the opposite direction when the second transverse member 16 performs a lifting action. The reverse drive assembly includes two sets of guide portions 2302 disposed on both sides of the side plate 23. One set of guide portions 2302 is slidably connected to the lifting frame 26, and a lifting plate 25 is slidably mounted on the other set of guide portions 2302. The lifting plate 25 can slide within the accommodating groove 1602 disposed on the side of the second transverse member 16.

[0072] The reverse drive kit also includes a horizontal groove 2303 provided on the side plate 23. A second groove wheel 24 is provided in the horizontal groove 2303. The second groove wheel 24 has outwardly extending drive shafts on both sides. One drive shaft can roll in a first inclined groove 2501 opened on the lifting plate 25, and the other drive shaft can roll in a second inclined groove 2601 opened on the lifting frame 26.

[0073] In this embodiment, the second transverse member 16 has two position states that can be switched by the guide shaft 15. When the second transverse member 16 moves downward, it can drive the lifting plate 25 slidably connected to it to move. At this time, since the second grooved wheel 24 rolls in the horizontal groove 2303, and the drive shaft on one side rolls in the first inclined groove 2501, the second grooved wheel 24 can move along the horizontal groove 2303 when the lifting plate 25 moves downward. With the cooperation of the drive shaft on the other side and the second inclined groove 2601, the lifting frame 26 can move upward, so that the second locking member 27 changes height. Specifically:

[0074] When the second lateral movement member 16 is at the upper end of its stroke, the first lateral movement member 11 is connected to the second lateral movement member 16 through the insertion groove 5 and the insertion rod 1801. At this time, the second locking member 27 at the lower part of the lifting frame 26 is engaged with the first locking member 6 on the collar 4. In this state, the second adjustment structure can perform the adjustment action, while the first adjustment structure is locked. This avoids the first adjustment structure from moving when the second adjustment structure moves, causing the patient's head position to change in the corresponding direction, thus affecting the accuracy of the adjustment.

[0075] During the switching process, when the convex shaft 21 moves to the middle of the "V" groove 2301, the second locking member 27 on the lifting frame 26 separates from the first locking member 6. This allows the second locking member 27 to be inserted into the corresponding first locking member 6 when the insertion rod 1801 separates from the insertion groove 5. This ensures that the corresponding first adjustment structure and second adjustment structure can be locked synchronously during the switching of the position of the second transverse member 16. This also ensures the stability of the corresponding first adjustment structure or second adjustment structure when the insertion rod 1801 separates from the insertion groove 5, further avoiding the influence of the first adjustment structure or second adjustment on each other during the action of the first adjustment structure or the second adjustment, and improving the portability and stability of the patient's head position adjustment.

[0076] As an embodiment of the present invention, the application of the head position holding device as described herein in head surgery is also proposed.

[0077] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0078] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A head positioning device, detachably mounted on an operating table (1), characterized in that, include: A connecting frame (2) is connected to the operating table (1). The connecting frame (2) is provided with a first adjustment structure and a second adjustment structure for adjusting the position of the patient's head. Both the first adjustment structure and the second adjustment structure are provided with multiple sets of insertion slots (5) and a first locking member (6). A retaining component is connected to the connecting frame (2). The retaining component has two position states that can be switched by being pulled, and a guide shaft (15) is provided on the retaining component. The elastic telescopic component is slidably disposed on the guide shaft (15). The elastic telescopic component is provided with multiple sets of insertion rods (1801) on the side facing the first adjustment structure and the second adjustment structure. When the holding component switches between the two position states, the insertion rod (1801) can be inserted into the corresponding insertion slot (5) to drive the first adjustment or the second adjustment structure to move. A locking structure is connected to the elastic telescopic component. When the retaining component is activated, causing the first adjustment action or the second adjustment structure to be activated, the locking structure can lock the second adjustment structure or the first adjustment action.

2. The head position holding device according to claim 1, characterized in that, The first adjustment structure includes a spiral groove (201) provided on the connecting frame (2) and a sleeve tube (3) that rotates and fits with the connecting frame (2). The sleeve tube (3) has a transverse groove (301) along its length. The first adjustment structure also includes a collar (4) slidably sleeved on the sleeve tube (3), and a fitting shaft (401) is formed on the inner wall of the collar (4) that penetrates the transverse groove (301) and extends into the spiral groove (201); The insertion groove (5) is provided on the outer wall of the collar (4).

3. The head position holding device according to claim 2, characterized in that, The second adjustment structure includes an arc-shaped part (7) connected to the sleeve tube (3) via a connecting plate. A clamping part (8) is slidably mounted on the arc-shaped part (7). The clamping part (8) passes through the arc-shaped part (7) and is connected to a first grooved wheel (9). The second adjustment structure also includes a guide rod (10) connecting the connecting plate. The guide rod (10) is also slidably mounted with a first transverse member (11). The first transverse member (11) is provided with a vertical groove (1101). The first grooved wheel (9) can roll in the vertical groove (1101). The first transverse member (11) is provided with the insertion groove (5).

4. The head position holding device according to claim 3, characterized in that, The retaining assembly includes a groove (13) disposed on the connecting plate, a slider (14) is slidably installed in the groove (13), the slider (14) is fixedly connected to the guide shaft (15), two sets of sliding sleeves (20) are slidably installed on the guide shaft (15), and two sets of second cylindrical springs (22) are sleeved on the guide shaft (15), one end of the second cylindrical spring (22) is connected to the sliding sleeve (20), and the other end is connected to the slider (14); The retaining assembly also includes a detachable side plate (23) mounted on the connecting plate, the side plate (23) having a "V" groove (2301), and a convex shaft (21) rotatably mounted on the sliding sleeve (20) being able to roll within the "V" groove (2301).

5. The head position holding device according to claim 4, characterized in that, The elastic telescopic assembly includes a second transverse member (16) slidably mounted on the guide shaft (15). Multiple sets of follower sleeves (17) are symmetrically arranged on the second transverse member (16). A connecting rod (18) is slidably mounted inside the follower sleeve (17), and a first columnar spring (19) is provided inside the follower sleeve (17). The two ends of the first columnar spring (19) are respectively connected to the inner wall of the follower sleeve (17) and the end of the connecting rod (18). The insertion rod (1801) is provided at the end of the connecting rod (18) away from the second transverse member (16).

6. The head position holding device according to claim 5, characterized in that, The connecting plate is provided with a screw adjusting device (12), and a sliding connection part (1201) is formed on the screw adjusting device (12); The second transverse member (16) is provided with a connecting seat (1601) on its side, and the connecting seat (1601) can slide within the sliding connecting part (1201).

7. The head position holding device according to claim 5, characterized in that, The locking structure includes a lifting frame (26) that is slidably connected to the side plate (23). Multiple sets of second locking members (27) are equidistantly arranged at both ends of the lifting frame (26) in the horizontal direction. The second locking members (27) are respectively adapted to the first locking members (6) arranged on the collar (4) and the first transverse member (11). The locking structure also includes a reverse drive assembly connecting the second transverse member (16) and the lifting frame (26), which can cause the lifting frame (26) to move in the opposite direction when the second transverse member (16) performs a lifting action.

8. The head position holding device according to claim 7, characterized in that, The reverse drive kit includes two sets of guide portions (2302) disposed on both sides of the side plate (23), one set of guide portions (2302) being slidably connected to the lifting frame (26), and the other set of guide portions (2302) being slidably mounted with a lifting plate (25), the lifting plate (25) being able to slide within a hysteresis groove (1602) disposed on the side of the second transverse member (16); The reverse drive kit also includes a horizontal groove (2303) provided on the side plate (23), in which a second groove wheel (24) is provided. On both sides of the second groove wheel (24) are outwardly extending drive shafts, one of which can roll in a first inclined groove (2501) opened on the lifting plate (25), and the other drive shaft can roll in a second inclined groove (2601) opened on the lifting frame (26).

9. The application of the head positioning device as described in any one of claims 1 to 8 in head surgery.

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