Patient head fixator for interventional operation

Abstract

The utility model discloses a patient head fixator for an interventional operation, and relates to the technical field of operations. The device comprises a base, a longitudinal adjusting mechanism and a workbench, supporting legs are evenly distributed on the lower side face of the base, and limiting mechanisms are arranged at the left end and the right end of the upper side face of the base. The longitudinal adjusting mechanism is arranged at the upper end of the base, the longitudinal adjusting mechanism and the limiting mechanism are installed in a matched mode, and the workbench is rotationally connected to the upper end of the longitudinal adjusting mechanism through a bearing. And then a worker observes the height of the head of the patient at the moment and specifically controls the longitudinal adjusting mechanism to adjust the height of the head of the patient, so that the head of the patient is adjusted to the height suitable for the operation, the height of the head of the patient can be changed when the patient lies flat, and the comfort of the patient is improved to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of surgery, and in particular relates to a patient head fixator for interventional surgery. Background Art

[0002] Head surgery is a surgical treatment for head diseases or injuries. Common types of head surgery include: 1. Brain tumor resection: used to remove benign or malignant tumors in the brain. The purpose of the surgery is to remove the tumor tissue as completely as possible while protecting the surrounding normal brain tissue and nerve function to the greatest extent; 2. Cerebrovascular surgery: including intracranial aneurysm clipping, cerebral vascular malformation resection, etc. These surgeries are mainly to prevent cerebral blood vessels from rupturing and bleeding, and to protect the blood supply to the brain. When performing head surgery on patients, it is usually necessary to fix the patient's head to ensure stability during the operation.

[0003] During the preparations before the operation, after the staff guides the patient to lie on the operating table, the height of the patient's head needs to be adjusted to facilitate the operation. The traditional method requires the staff to observe the height of the patient's head after lying on the operating table. When fixing the head, the staff will take a fixator of appropriate height, then let the patient sit up, place the fixator on the position of the patient's head when lying flat, and then let the patient lie down. When the patient's head is on the fixator, the staff will operate the head fixator to fix the patient's head.

[0004] In the above scheme, during the preparation work before the operation on the patient's head, when fixing the patient's head, in order to match the patient's head condition, the patient needs to lie down and sit up frequently, which greatly reduces the patient's comfort and affects the patient's mood.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0006] In response to the problems in the related art, the present invention proposes a patient head fixator for interventional surgery to overcome the above-mentioned technical problems existing in the existing related art.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is a patient head fixator for interventional surgery, comprising a base, a longitudinal adjustment mechanism and a workbench. The lower side of the base is provided with evenly distributed supporting feet, and the left and right ends of the upper side of the base are provided with limiting mechanisms.

[0009] The longitudinal adjustment mechanism is arranged at the upper end of the base, and the longitudinal adjustment mechanism is installed in coordination with the limiting mechanism.

[0010] The workbench is rotatably connected to the upper end of the longitudinal adjustment mechanism through a bearing. A headrest is provided in the middle of the upper side surface of the workbench. Adjustment grooves are provided at both left and right ends of the upper side surface of the headrest. A rotating shaft is rotatably connected between the front and rear inner walls of the adjustment groove, and a head clamp is fixedly connected to the middle of the outer arc surface of the rotating shaft.

[0011] Furthermore, the longitudinal adjustment mechanism includes a lifting platform, a screw rod and a lifting block. An adjustment groove is opened in the middle of the upper side surface of the base, and the bottom wall of the adjustment groove is rotatably connected to the screw rod. A lifting groove is opened in the middle of the lower side surface of the lifting platform, and a lifting block is fixedly connected between the rising grooves. The lifting block is threadedly connected to the screw rod. A bearing groove is opened on the upper side surface of the lifting platform, and the inner wall of the bearing groove is fixedly connected to the outer ring of the bearing. The inner ring of the bearing is fixedly connected to the outer arc surface of the lower end of the workbench.

[0012] Furthermore, the longitudinal adjustment mechanism also includes a sliding rod, and guide grooves are opened at the left and right ends of the lower side of the rising platform. The sliding rods are respectively fixedly connected to the left and right ends of the upper side of the base, and the sliding rods are slidably connected to the longitudinally adjacent guide grooves.

[0013] Furthermore, a control switch is provided on the front side of the base, and an input end of the control switch is electrically connected to an external power supply.

[0014] Furthermore, a motor is mounted on the lower side of the base via bolts, the output shaft of the motor is fixedly connected to the lower end of the screw rod, and the input end of the motor is electrically connected to the output end of the control switch.

[0015] Furthermore, the limiting mechanism includes a limiting slide, a limiting plate, a gear and a mounting plate. Mounting plates are provided at both ends of the upper side surface of the base. The rear side surfaces of the mounting plates are rotatably connected to gears through rotating shafts. The middle parts of the rear side surfaces of the gears are fixedly connected to limiting plates. Limiting slides are provided at both ends of the upper side surface of the workbench. C-shaped grooves are provided on the relative inner sides of the two limiting plates. The limiting slides are slidably connected to the laterally adjacent C-shaped grooves.

[0016] Furthermore, the limiting mechanism also includes a rack plate, and the rear side surfaces of the mounting plates are slidably connected to the rack plates, and the rack plates are meshed with the laterally adjacent gears.

[0017] The utility model has the following beneficial effects:

[0018] During the preparation work before surgery on the patient's head, the utility model allows the patient to lie flat on the operating table. After the patient's head is fixed, the staff observes the height of the patient's head at this time and specifically operates the longitudinal adjustment mechanism to adjust the height of the patient's head. Thus, the height of the patient's head can be changed when the patient is lying flat, which increases the patient's comfort to a certain extent.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model in a rear side cross-section;

[0023] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0024] Figure 4 It is a schematic structural diagram of the front side section of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Base; 2. Longitudinal adjustment mechanism; 21. Lifting platform; 22. Screw rod; 23. Lifting block; 24. Slide rod; 3. Limiting mechanism; 31. Limiting slide column; 32. Limiting plate; 33. Gear; 34. Rack plate; 35. Mounting plate; 4. Workbench; 5. Headrest; 51. Adjustment slot; 6. Head clamp; 7. Control switch; 8. Rotating shaft; 9. Motor; 10. Bearing. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.

[0028] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0029] See also Figure 1-Figure 4 As shown, the utility model is a patient head fixator for interventional surgery, comprising a base 1, a longitudinal adjustment mechanism 2 and a workbench 4. The lower side of the base 1 is provided with evenly distributed supporting feet, and the left and right ends of the upper side of the base 1 are provided with limiting mechanisms 3.

[0030] The longitudinal adjustment mechanism 2 is provided at the upper end of the base 1, and the longitudinal adjustment mechanism 2 is installed in conjunction with the limiting mechanism 3. The workbench 4 is rotatably connected to the upper end of the longitudinal adjustment mechanism 2 through a bearing 10. A headrest 5 is provided in the middle of the upper side surface of the workbench 4. Adjustment slots 51 are provided at both left and right ends of the upper side surface of the headrest 5. A rotating shaft 8 is rotatably connected between the front and rear inner walls of the adjusting slot 51, and a head clamp 6 is fixedly connected to the middle of the outer arc surface of the rotating shaft 8.

[0031] The surface of the rotating shaft 8 is fixedly connected to a worm gear, and a worm is rotated inside the headrest 5. The spiral teeth at both ends of the worm are arranged in opposite directions, and the worm gear is respectively engaged with the teeth at both ends of the worm. A knob is provided at one end of the worm, and the knob is located on the outside of the headrest 5.

[0032] The staff guides the patient undergoing head surgery to lie flat on the operating bed, and then gently places the patient's head on the headrest 5. After that, the staff rotates the worm by turning the knob. Under the meshing cooperation of the worm and the worm gear, the two worm gears drive the rotating shaft 8 and the head clamp 6 to rotate inward at the same time until they contact the patient's head. In addition, during the preparation process before the operation, the staff can adjust the height according to the position of the patient's head when lying on the headrest 5, so that the patient's head is at a height convenient for surgery. When adjusting the specific height, the staff operates the longitudinal adjustment mechanism 2, and the operation of the longitudinal adjustment mechanism 2 drives the workbench 4 to start changing the height. At this time, the workbench 4 drives the headrest 5 to move synchronously. This step realizes the adjustment of the patient's head height. During the height adjustment of the head fixator, the limiting mechanism 3 always limits the workbench 4 in the longitudinal direction to ensure the stability of the patient's head during the height adjustment.

[0033] In the preparation work before the operation on the patient's head, the utility model allows the patient to lie flat on the operating table. After the patient's head is fixed, the staff can observe the height of the patient's head at this time and specifically operate the longitudinal adjustment mechanism 2 to adjust the height of the patient's head so that the patient's head is adjusted to a height suitable for the operation. In this way, the height of the patient's head can be changed while the patient is lying flat, which improves the patient's comfort to a certain extent.

[0034] During the height adjustment of the head holder, the head holder is restricted by the limiting mechanism 3 so as to remain stable during the longitudinal movement, thereby avoiding rotation and causing harm to the patient.

[0035] In one embodiment, for the above-mentioned longitudinal adjustment mechanism 2, the longitudinal adjustment mechanism 2 includes a rising platform 21, a screw rod 22 and a rising block 23. An adjustment groove is opened in the middle of the upper side surface of the base 1, and the bottom wall of the adjustment groove is rotatably connected to the screw rod 22. A rising groove is opened in the middle of the lower side surface of the rising platform 21, and a rising block 23 is fixedly connected between the rising grooves. The rising block 23 is threadedly connected to the screw rod 22. A bearing groove is opened on the upper side surface of the rising platform 21, and the inner wall of the bearing groove is fixedly connected to the outer ring of the bearing 10. The inner ring of the bearing 10 is fixedly connected to the outer arc surface of the lower end of the workbench 4.

[0036] The longitudinal adjustment mechanism 2 further includes a slide rod 24. Guide grooves are provided on both the left and right ends of the lower side of the raising platform 21. The slide rods 24 are respectively fixedly connected to the left and right ends of the upper side of the base 1. The slide rods 24 are slidably connected to the longitudinally adjacent guide grooves.

[0037] When the height of the workbench 4 is adjusted, the screw rod 22 is driven to rotate. Since the screw rod 22 is threadedly connected to the rising block 23, the rising block 23 is fixedly connected to the rising platform 21, and cooperates with the guide slide groove on the rising platform 21 and the slide rod 24 to limit the freedom of the rising platform 21. When the screw rod 22 rotates, the rising platform 21 is driven to move upward through the rising block 23, so that the rising platform 21 drives the workbench 4 and the headrest 5 installed on its upper surface to rotate around the central axis to achieve longitudinal movement along the central axis direction, so as to achieve the adjustment of the longitudinal height of the headrest 5, thereby realizing the adjustment of the height of the patient's head fixed on the headrest 5 during the preparation work before the operation.

[0038] In one embodiment, for the base 1, the input end of the control switch 7 is electrically connected to an external power source;

[0039] A motor 9 is mounted on the lower side of the base 1 by bolts, the output shaft of the motor 9 is fixedly connected to the lower end of the screw rod 22, and the input end of the motor 9 is electrically connected to the output end of the control switch 7;

[0040] When the head holder needs to have its longitudinal position adjusted, the staff operates the control switch 7. Under the control of the control switch 7, the motor 9 starts to drive, and then the output shaft of the motor 9 drives the screw rod 22 to rotate, thereby causing the screw rod 22 to rotate, thereby driving the longitudinal adjustment mechanism 2.

[0041] In one embodiment, for the above-mentioned limiting mechanism 3, the limiting mechanism 3 includes a limiting slide 31, a limiting plate 32, a gear 33 and a mounting plate 35. The left and right ends of the upper side surface of the base 1 are provided with mounting plates 35. The rear side surfaces of the mounting plates 35 are rotatably connected to the gear 33 through a rotating shaft. The middle part of the rear side surface of the gear 33 is fixedly connected to the limiting plate 32. The left and right ends of the upper side surface of the workbench 4 are provided with limiting slides 31. The opposite inner sides of the two limiting plates 32 are provided with C-shaped slide grooves, and the limiting slides 31 are slidably connected to the laterally adjacent C-shaped slide grooves.

[0042] The limiting mechanism 3 further includes a rack plate 34 , and the rear side surfaces of the mounting plates 35 are slidably connected to the rack plates 34 , and the rack plates 34 are meshed with the laterally adjacent gears 33 ;

[0043] In the process of the longitudinal adjustment mechanism 2 driving the workbench 4 to move the longitudinal position, the two limit slides 31 set on the upper side of the workbench 4 always slide inside the C-shaped slide grooves of the adjacent limit plates 32, so that the C-shaped slide grooves limit the freedom of the limit slide 31, so that it always maintains longitudinal movement. In the preparation work before the operation, when the staff needs to adjust the circumferential angle of the head fixator, the staff can push the two rack plates 34 upward. At this time, under the action of meshing, the rack plates 34 drive the adjacent gears 33 to rotate, and then the gear 33 starts to rotate, thereby driving the two limit plates 32 to rotate synchronously. At this time, the C-shaped slide grooves of the two limit plates 32 gradually move away from the adjacent limit slides 31 and contact the restrictions on them. The staff can rotate the workbench 4, thereby driving the headrest 5 to rotate circumferentially. In the process of the rotation of the workbench 4, it is convenient to adjust the circumference of the head fixator as needed during the preparation work before the operation.

[0044] In summary, with the help of the above-mentioned technical solution of the present invention, the staff guides the patient undergoing head surgery to lie flat on the operating bed, and then the patient's head is gently placed on the headrest 5. Thereafter, the staff rotates the worm by turning the knob. Under the meshing cooperation of the worm and the worm gear, the two worm gears drive the rotating shaft 8 and the head clamp 6 to rotate inward at the same time until they contact the patient's head. In addition, during the preparation process before the operation, the staff can adjust the height according to the position of the patient's head when lying on the headrest 5, so that the patient's head is at a height convenient for surgery. When adjusting the specific height, the staff operates the control switch 7. Under the control of the control switch 7, the motor 9 starts to drive, and then the output shaft of the motor 9 drives the screw rod 22 to rotate. When the screw rod 22 rotates, since the screw rod 22 is threadedly connected to the rising block 23, the rising block 23 is fixedly connected to the rising platform 21, and cooperates with the guide slide groove and the slide rod 24 on the rising platform 21 to limit the degree of freedom of the rising platform 21, so that when the screw rod 22 rotates, the rising platform 21 is driven to move upward through the rising block 23. The lifting platform 21 drives the workbench 4 and the headrest 5 installed on its upper surface to rotate around the central axis to achieve longitudinal movement along the central axis to adjust the longitudinal height of the headrest 5. The two limiting slides 31 set on the upper side of the workbench 4 always slide inside the C-shaped slide grooves of the adjacent limiting plates 32, so that the C-shaped slide grooves limit the freedom of the limiting slide 31, so that it always maintains longitudinal movement. In the preparation work before the operation, when the staff needs to adjust the circumferential angle of the head fixator, the staff can push the two rack plates 34 upward. At this time, under the action of meshing, the rack plates 34 drive the adjacent gears 33 to rotate, and then the gears 33 start to rotate, thereby driving the two limiting plates 32 to rotate synchronously. At this time, the C-shaped slide grooves of the two limiting plates 32 gradually move away from the adjacent limiting slides 31 and contact the restrictions on them. The staff can rotate the workbench 4, thereby driving the headrest 5 to rotate circumferentially. During the rotation of the workbench 4, it is convenient to adjust the circumference of the head fixator as needed during the preparation work before the operation.

[0045] Through the above technical solution, the present invention allows the patient to lie flat on the operating table during the preparation work before surgery on the patient's head. After the patient's head is fixed, the staff then observes the height of the patient's head at this time and specifically operates the longitudinal adjustment mechanism 2 to adjust the height of the patient's head so that the patient's head is adjusted to a height suitable for surgery. This allows the patient to change the height of the patient's head while lying flat, thereby increasing the patient's comfort to a certain extent.

[0046] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The preferred embodiments do not describe all details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. This specification selects and describes these embodiments in detail to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A patient head fixator for interventional surgery, comprising a base (1), a longitudinal adjustment mechanism (2) and a workbench (4), characterized in that: The lower side of the base (1) is provided with evenly distributed supporting feet, and the left and right ends of the upper side of the base (1) are both provided with limiting mechanisms (3); The longitudinal adjustment mechanism (2) is arranged at the upper end of the base (1), and the longitudinal adjustment mechanism (2) is installed in conjunction with the limiting mechanism (3). The workbench (4) is rotatably connected to the upper end of the longitudinal adjustment mechanism (2) through a bearing (10). A headrest (5) is provided in the middle of the upper side surface of the workbench (4). Adjustment grooves (51) are provided at both left and right ends of the upper side surface of the headrest (5). A rotating shaft (8) is rotatably connected between the front and rear inner walls of the adjusting groove (51), and a head clamp (6) is fixedly connected to the middle of the outer arc surface of the rotating shaft (8).

2. A patient head fixator for interventional surgery according to claim 1, characterized in that: The longitudinal adjustment mechanism (2) includes a rising platform (21), a screw rod (22) and a rising block (23); an adjustment groove is provided in the middle of the upper side surface of the base (1); the bottom wall of the adjustment groove is rotatably connected to the screw rod (22); a rising groove is provided in the middle of the lower side surface of the rising platform (21); a rising block (23) is fixedly connected between the rising grooves; the rising block (23) is threadedly connected to the screw rod (22); a bearing groove is provided on the upper side surface of the rising platform (21); the inner wall of the bearing groove is fixedly connected to the outer ring of the bearing (10); the inner ring of the bearing (10) is fixedly connected to the outer arc surface of the lower end of the workbench (4).

3. The patient head fixator for interventional surgery according to claim 2, characterized in that: The longitudinal adjustment mechanism (2) further includes a slide rod (24), and guide slots are provided at both left and right ends of the lower side surface of the raising platform (21). The slide rod (24) is respectively fixedly connected to the left and right ends of the upper side surface of the base (1), and the slide rod (24) is slidably connected to the longitudinally adjacent guide slots.

4. The patient head fixator for interventional surgery according to claim 2, characterized in that: A control switch (7) is provided on the front side of the base (1), and an input end of the control switch (7) is electrically connected to an external power supply.

5. The patient head fixator for interventional surgery according to claim 4, characterized in that: A motor (9) is mounted on the lower side of the base (1) via bolts, the output shaft of the motor (9) is fixedly connected to the lower end of the screw rod (22), and the input end of the motor (9) is electrically connected to the output end of the control switch (7).

6. The patient head fixator for interventional surgery according to claim 1, characterized in that: The limiting mechanism (3) comprises a limiting slide (31), a limiting plate (32), a gear (33) and a mounting plate (35). The left and right ends of the upper side surface of the base (1) are both provided with mounting plates (35). The rear side surfaces of the mounting plates (35) are both rotatably connected to the gears (33) via a rotating shaft. The middle portion of the rear side surface of the gear (33) is fixedly connected to the limiting plate (32). The left and right ends of the upper side surface of the workbench (4) are both provided with limiting slides (31). The opposite inner sides of the two limiting plates (32) are both provided with C-shaped sliding grooves. The limiting slides (31) are both slidably connected to the C-shaped sliding grooves adjacent to each other in the transverse direction.

7. The patient head fixator for interventional surgery according to claim 6, characterized in that: The limiting mechanism (3) further comprises a rack plate (34), the rear side surfaces of the mounting plates (35) are slidably connected to the rack plates (34), and the rack plates (34) are meshedly connected to the laterally adjacent gears (33).

Images