Femtosecond laser auxiliary operation head position fixing device

Abstract

The invention relates to the field of medical instruments, in particular to a femtosecond laser assisted operation head position fixing device which comprises a base, a head supporting unit arranged on the base, a fixing unit arranged on the head supporting unit and a fixing assisting unit arranged on the base. The fixing unit comprises a first fixing assembly and a second fixing assembly which are arranged on the head supporting unit, and the first fixing assembly and the second fixing assembly are the same in structure; the first fixing assembly comprises a first connecting belt arranged on the head supporting unit, a second connecting belt arranged on the head supporting unit and an adjusting piece arranged on the first connecting belt and the second connecting belt, and the head supporting unit is matched with the first fixing assembly and the second fixing assembly, so that the comfort of a patient is guaranteed, and meanwhile, the adjusting piece is arranged on the first connecting belt and the second connecting belt. The head of a patient can be effectively fixed, an operation is facilitated, the lengths of the first connecting band and the second connecting band are adjusted through the adjusting piece, and the device can adapt to patients with different head shapes.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, in particular to a femtosecond laser-assisted surgical head position fixing device. Background Art

[0002] Femtosecond laser surgery is a minimally invasive surgery using femtosecond laser technology and is widely used in the field of ophthalmology, especially for the correction of myopia, hyperopia and astigmatism.

[0003] A femtosecond laser surgery takes five to ten minutes. The precision of the surgery has a crucial impact on the outcome of the surgery, which requires the patient to keep his head still during the surgery. Due to the short surgery time, most existing head fixation methods rely on the patient's cooperation. When the surgical instrument approaches the patient's eyes, the patient instinctively tends to tremble slightly and cannot remain absolutely stable, which will affect the accuracy of the surgery. Summary of the invention

[0004] In view of the problem in the above or prior art that when the surgical instrument is close to the patient's eyes, the patient is prone to slight tremors out of instinct and cannot maintain absolute stability, which will affect the accuracy of the surgery, the present invention is proposed.

[0005] Therefore, an object of the present invention is to provide a device for fixing the head position in femtosecond laser-assisted surgery.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: As a preferred solution of the head position fixing device for femtosecond laser-assisted surgery of the present invention, it includes: a base, a head support unit arranged on the base, a fixing unit arranged on the head support unit, and a fixing auxiliary unit arranged on the base; the fixing unit includes a first fixing component and a second fixing component arranged on the head support unit, and the first fixing component and the second fixing component have the same structure; the first fixing component includes a first connecting belt arranged on the head support unit, a second connecting belt arranged on the head support unit, and an adjusting piece arranged on the first connecting belt and the second connecting belt.

[0007] As a preferred solution of the head position fixing device for femtosecond laser-assisted surgery of the present invention, the head support unit includes a pillow arranged on the base, an adjusting screw arranged on the base, a movable block arranged on the adjusting screw, and a movable rod arranged on the movable block; the base is provided with an movable cavity cooperating with the movable block.

[0008] As a preferred solution of the head position fixing device for femtosecond laser-assisted surgery of the present invention, wherein: a connecting groove is provided on the backrest, and one end of the movable rod is rotatably provided on the connecting groove; The movable block is provided with a screw hole matched with the adjusting screw rod; the movable block is provided with a supporting sliding block, and the movable cavity is provided with a supporting sliding groove matched with the supporting sliding block.

[0009] As a preferred solution of the device for fixing the head position for femtosecond laser-assisted surgery of the present invention, the first connecting belt is provided with a protrusion, and the second connecting belt is provided with a groove matching the protrusion.

[0010] As a preferred solution of the head fixing device for femtosecond laser-assisted surgery of the present invention, the middle parts of the first connecting belt and the second connecting belt are both hollow in design, a first tooth groove is arranged on the inner wall of the first connecting belt, and a second tooth groove is arranged on the inner wall of the second connecting belt, and the directions of the first tooth groove and the second tooth groove are opposite.

[0011] As a preferred solution of the device for fixing the head position of femtosecond laser-assisted surgery of the present invention, the adjusting member includes a connecting shell arranged on the first connecting belt and the second connecting belt, a rotating shaft arranged on the connecting shell, a first gear arranged on the rotating shaft to cooperate with the first tooth groove, and a second gear arranged on the rotating shaft to cooperate with the second tooth groove.

[0012] As a preferred solution of the head position fixing device for femtosecond laser-assisted surgery of the present invention, the fixing auxiliary unit includes a shoulder massager rotatably arranged on the base, a connecting block arranged on the shoulder massager, a positioning shaft arranged on the connecting block, a limiting shaft arranged on the connecting block, and a spring arranged on the connecting block.

[0013] As a preferred solution of the head position fixing device for femtosecond laser-assisted surgery of the present invention, wherein: the shoulder massager is provided with a positioning slot that cooperates with the positioning axis; the positioning axis includes a bevel gear arranged on the connecting block, and a sliding shaft arranged on the bevel gear.

[0014] As a preferred solution of the head fixing device for femtosecond laser-assisted surgery of the present invention, the sliding shaft is cylindrical, the axis of rotation of the shoulder massager is coaxial with the axis of the sliding shaft; the cross-sectional area of ​​the bevel gear gradually increases toward the outside.

[0015] As a preferred solution of the head fixing device for femtosecond laser-assisted surgery of the present invention, the base is provided with a limiting sliding groove matching the limiting axis, and the base is provided with a telescopic groove matching the spring.

[0016] The beneficial effects of the femtosecond laser-assisted surgical head position fixation device of the present invention: the present invention uses a head support unit in conjunction with a first fixing component and a second fixing component to effectively fix the patient's head while ensuring the patient's comfort, thereby facilitating the operation. The lengths of the first connecting belt and the second connecting belt are adjusted by adjusting the adjustment piece so that the device can adapt to patients with different head shapes. The patient's shoulders are then pressed by a shoulder massager to further fix the patient's upper body, thereby strengthening the fixation effect on the head. At the same time, the patient's shoulders are massaged by the shoulder massager, which has a certain soothing effect on the patient during the operation and further reduces the probability of the patient's head moving due to tremors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the head fixation device for femtosecond laser-assisted surgery.

[0019] Figure 2 This is a side view structural diagram of the head position fixation device for femtosecond laser-assisted surgery.

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a headrest for a femtosecond laser-assisted surgery head position fixation device.

[0021] Figure 4 This is a schematic diagram of the structure of the movable block of the head position fixation device for femtosecond laser-assisted surgery.

[0022] Figure 5 This is a schematic diagram of the structure of the base of the head fixation device for femtosecond laser-assisted surgery.

[0023] Figure 6 This is a schematic structural diagram of the first connecting belt of a head position fixation device for femtosecond laser-assisted surgery.

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the connecting shell of the head fixation device for femtosecond laser-assisted surgery.

[0025] Figure 8 This is a schematic diagram of the structure of the second connecting belt of the head position fixation device for femtosecond laser-assisted surgery.

[0026] Fig. 9 A schematic diagram of the side structure of a shoulder massager that is a head position fixation device for femtosecond laser-assisted surgery.

[0027] Fig.10 This is a schematic diagram of the structure of the positioning axis of the head fixation device for femtosecond laser-assisted surgery.

[0028] Fig.11 This is a schematic diagram of the structure of the positioning slot of the head fixation device for femtosecond laser-assisted surgery.

[0029] In the figure: 1, base; 11, movable cavity; 12, supporting slide; 13, limiting slide; 14, telescopic slot; 2, head support unit; 21, pillow; 211, connecting slot; 22, adjusting screw; 23, movable block; 231, screw hole; 232, supporting slider; 24, movable rod; 3, fixing unit; 31, first fixing component; 311, first connecting belt; 3111, protrusion; 3112, first tooth groove; 312, first Two connecting belts; 3121, groove; 3122, second tooth groove; 313, adjusting member; 3131, connecting shell; 3132, rotating shaft; 3133, first gear; 3134, second gear; 32, second fixing assembly; 4, fixing auxiliary unit; 41, shoulder massager; 411, positioning slot; 42, connecting block; 43, positioning shaft; 431, bevel gear; 432, sliding shaft; 44, limiting shaft; 45, spring. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] Example 1, reference Figure 1-Figure 2 , which is the first embodiment of the present invention, and provides a femtosecond laser-assisted surgical head position fixing device, comprising a base 1, which is used to be installed on an operating table to play a supporting role, a head support unit 2 arranged on the base 1, which is used for the position of the patient's head to rest, a fixing unit 3 arranged on the head support unit 2, which is used to cooperate with the head support unit 2 to fix the patient's head, and a fixing auxiliary unit 4 arranged on the base 1, which is used to press the patient's shoulders to improve the head fixing effect; The fixing unit 3 includes a first fixing component 31 and a second fixing component 32 which are rotatably arranged on the head supporting unit 2. The first fixing component 31 is used to fix the forehead of the patient, and the second fixing component 32 is used to fix the chin of the patient. The head of the patient is fixed by the cooperation between the first fixing component 31 and the second fixing component 32 and the head supporting unit 2. The first fixing component 31 and the second fixing component 32 have the same structure. The first fixing component 31 includes a first connecting belt 311 rotatably arranged on the head supporting unit 2, a second connecting belt 312 rotatably arranged on the head supporting unit 2, and an adjusting member 313 arranged on the first connecting belt 311 and the second connecting belt 312. The adjusting member 313 is used to adjust the tension of the first connecting belt 311 and the second connecting belt 312 to ensure the patient's comfort while achieving a better fixing effect.

[0032] In summary, first fix the device on one side of the patient's headrest on the femtosecond operating table. At this time, the first fixing component 31 and the second fixing component 32 are both pushed to the front of the head support unit 2, so that the upper part of the head support unit 2 is completely empty. At this time, guide the patient to lie flat on the operating table so that the patient's head is resting on the head support unit 2. At this time, adjust the inclination of the head support unit 2 to keep the patient in a comfortable posture. At this time, adjust the fixing auxiliary unit 4 so that the fixing auxiliary unit 4 is pressed on the patient's shoulders. While fixing the patient's upper body, massage the patient's shoulders to relieve the patient's tension. At this time, adjust the first fixing component 31 and the second fixing component 32, and adjust the length of the first connecting belt 311 and the second connecting belt 312 through the adjusting member 313, so that the bottom of the adjusting member 313 fits the patient's forehead and chin, so that the patient's head is firmly fixed on the head support unit 2 to prevent the patient's head from moving or shaking during the operation, thereby ensuring the accuracy of the operation.

[0033] Example 2, reference Figure 1-Figure 8 , which is the second embodiment of the present invention, and is different from the previous embodiment in that: the patient's head is fixed. Compared with embodiment 1, further, the head support unit 2 includes: a pillow 21 rotatably arranged on the base 1, which is used for the patient's head to rest on during femtosecond surgery, the surface of the pillow 21 is designed to be a curved surface that conforms to the contour of the human head and neck, which is used to improve the patient's comfort, relax the patient's body, and prevent the patient from subconsciously moving due to uncomfortable posture; an adjustment screw 22 arranged on the base 1, which is used for manual adjustment and rotation; a movable block 23 arranged on the adjustment screw 22, which is used to cooperate with the rotation of the adjustment screw 22 and move forward and backward on the adjustment screw 22; and a movable rod 24 rotatably arranged on the movable block 23, which is used to cooperate with the forward and backward movement of the movable block 23 to deflect, and lift the pillow 21 to achieve a tilt angle that makes the patient feel comfortable; The base 1 is provided with an active cavity 11 for cooperating with the active block 23 .

[0034] The pillow 21 is provided with a connecting groove 211, and one end of the movable rod 24 is rotatably arranged on the connecting groove 211, so as to lift the pillow 21 when the movable block 23 moves forward and backward to drive the movable rod 24 to deflect, thereby adjusting the tilt angle of the pillow 21; The movable block 23 is provided with a screw hole 231 for matching the adjusting screw 22, and is used to match the rotation of the movable block 23 to drive the movable block 23 to move back and forth on the adjusting screw 22; A supporting slider 232 is provided on the movable block 23, and a supporting groove 12 cooperating with the supporting slider 232 is provided on the movable cavity 11. The supporting slider 232 cooperates with the supporting groove 12 to ensure that the movable block 23 can slide back and forth on the adjusting screw 22, while also being able to bear the reaction force generated when the movable rod 24 lifts the pillow 21, thereby avoiding direct pressure on the adjusting screw 22, causing the adjusting screw 22 to bend and causing the device to malfunction, making the device more durable and reducing the failure rate.

[0035] Among them, a protrusion 3111 is provided on the first connecting belt 311, and a groove 3121 matching the protrusion 3111 is provided on the second connecting belt 312. The protrusion 3111 and the groove 3121 are used to cooperate to keep the first connecting belt 311 and the second connecting belt 312 accurately superimposed up and down, play a limiting role, and facilitate tension adjustment.

[0036] Among them, the middle parts of the first connecting belt 311 and the second connecting belt 312 are both hollow in design, and a first tooth groove 3112 is provided on the inner wall of the first connecting belt 311, and a second tooth groove 3122 is provided on the inner wall of the second connecting belt 312. The directions of the first tooth groove 3112 and the second tooth groove 3122 are opposite. The first tooth groove 3112 and the second tooth groove 3122 are used to cooperate with the adjusting part 313 to drive the first connecting belt 311 and the second connecting belt 312 to move relative to each other, so as to achieve the effect of loosening or tightening, so as to adapt to different patients, so that the adjusting part 313 is close to the patient's head to ensure the fixing effect.

[0037] The adjusting member 313 includes a connecting shell 3131 disposed on the first connecting belt 311 and the second connecting belt 312, which is used to connect the first connecting belt 311 and the second connecting belt 312; the top of the adjusting member 313 is set as an arc surface, which is used to fit the head contour of the patient; a through hole is set in the middle of the connecting shell 3131, and the shape of the through hole just accommodates the first connecting belt 311 and the second connecting belt 312 stacked up and down to slide back and forth; a rotating shaft 3132 disposed on the connecting shell 3131 is used for manually adjusting the rotation; a first gear 3133 disposed on the rotating shaft 3132 to cooperate with the first tooth groove 3112; and The second gear 3134 is arranged on the rotating shaft 3132 to cooperate with the second tooth groove 3122. The first gear 3133 and the second gear 3134 are used to rotate in cooperation with the rotation of the rotating shaft 3132. The first tooth groove 3112 and the second tooth groove 3122 drive the first connecting belt 311 and the second connecting belt 312 to move. Since the first tooth groove 3112 and the second tooth groove 3122 are arranged in opposite directions, when the rotating shaft 3132 drives the first gear 3133 and the second gear 3134 to rotate, the moving directions of the first connecting belt 311 and the second connecting belt 312 are opposite, thereby achieving the effect of adjusting the tension.

[0038] The rest of the structure is the same as that of Example 1.

[0039] In summary, when the patient lies flat on the operating table with his head resting on the pillow 21, the adjusting screw 22 is rotated to drive the movable block 23 to move, and the movable rod 24 is driven to deflect, so that the pillow 21 is lifted to a suitable angle. At this time, the patient's shoulders are pressed by the fixing auxiliary unit 4, and the second fixing component 32 is pushed downward, and the first fixing component 31 is pushed above the patient's forehead. At this time, the rotating shaft 3132 is rotated, and the first gear 3133 and the second gear 3134 are rotated. The first tooth groove 3112 and the second tooth groove 3122 drive the first connecting belt 311 and the second connecting belt 312 to form a binding belt to tighten, so that the connecting shell 3131 is tightly attached to the patient's forehead. The same steps are used to make the second fixing component 32 tightly attached to the patient's chin, forming a triangle fixation with the pillow 21, ensuring the comfort of the patient's head while making the patient's head well fixed. When the operation is over, the fixing auxiliary unit 4 is adjusted to make it leave the patient's shoulder, and the rotating shaft 3132 is rotated to loosen the straps formed by the first tooth groove 3112 and the second tooth groove 3122, so that the connecting shell 3131 and the second fixing component 32 leave the patient's head, and the first fixing component 31 and the second fixing component 32 are moved as a whole to the front of the pillow 21. At this time, the patient can cooperate with the medical staff to leave the operating table.

[0040] Example 3, reference Figure 1-Figure 11, which is the second embodiment of the present invention, and is different from the previous embodiment in that: pressing the patient's shoulder, further strengthening the fixation effect, and soothing the patient's emotions. Compared with Example 2, further, the fixation auxiliary unit 4 includes a shoulder massager 41 rotatably arranged on the base 1, which is used to press the patient's shoulder and massage the patient's shoulder during surgery to relax the patient's body, a connecting block 42 arranged on the shoulder massager 41, which plays a connecting role, a positioning shaft 43 arranged on the connecting block 42, which is used to lock the rotation of the shoulder massager 41, a limiting shaft 44 arranged on the connecting block 42, which is used to limit the rotation of the connecting block 42, thereby limiting the rotation of the positioning shaft 43, and a spring 45 arranged on the connecting block 42, which is used to drive the moving connecting block 42 to return to its original position.

[0041] The shoulder massager 41 is provided with a positioning slot 411 that matches the positioning shaft 43, and is used to match the back and forth sliding of the positioning shaft 43, so as to adjust and lock the position of the shoulder massager 41; The positioning shaft 43 includes a bevel gear 431 disposed on the connecting block 42 for engaging with the positioning slot 411 to lock the current position of the shoulder massager 41, and a sliding shaft 432 disposed on the bevel gear 431 for making the movement of the bevel gear 431 more stable.

[0042] The sliding shaft 432 is cylindrical, and the axis of rotation of the shoulder massager 41 is coaxial with the axis of the sliding shaft 432; The cross-sectional area of ​​the bevel gear 431 gradually increases toward the outside, so that through the meshing of the bevel gear 431 and the positioning slot 411 in the inclined direction, while ensuring a larger meshing area, the bevel gear 431 only needs to move horizontally a small distance to disengage from the positioning slot 411, thereby simplifying the rotation adjustment method of the shoulder massager 41.

[0043] The base 1 is provided with a limiting sliding groove 13 matching the limiting shaft 44 , and the base 1 is provided with a telescopic groove 14 matching the spring 45 .

[0044] The rest of the structure is the same as that of Example 2.

[0045] In summary, when the patient lies flat with his head resting on the pillow 21, the connecting block 42 is pulled outward, and the sliding shaft 432 moves outward in the positioning slot 411. The spring 45 is stretched, generating an inward pulling force. Under the action of the limiting shaft 44, the positioning shaft 43 cannot rotate as a whole. When the bevel gear 431 moves outward a short distance, the bevel gear 431 is disengaged from the positioning slot 411. The rotation of the shoulder massager 41 can be manually adjusted to make the shoulder massager 41 press on the patient's shoulder. The connecting block 42 is released, and under the action of the spring 45, the positioning shaft 43 is driven to return to its original position as a whole until the bevel gear 431 is engaged with the positioning slot 411. At this time, the shoulder massager 41 cannot rotate. When the operation is completed, the above steps are performed again to drive the shoulder massager 41 away from the patient's shoulder.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A femtosecond laser-assisted surgical head position fixation device, characterized in that: It comprises a base (1), a head support unit (2) arranged on the base (1), a fixing unit (3) arranged on the head support unit (2), and a fixing auxiliary unit (4) arranged on the base (1); The fixing unit (3) comprises a first fixing component (31) and a second fixing component (32) which are arranged on the head support unit (2), and the first fixing component (31) and the second fixing component (32) have the same structure; The first fixing assembly (31) comprises a first connecting belt (311) provided on the head supporting unit (2), a second connecting belt (312) provided on the head supporting unit (2), and an adjusting member (313) provided on the first connecting belt (311) and the second connecting belt (312).

2. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 1, characterized in that: The head support unit (2) comprises a headrest (21) arranged on the base (1), an adjusting screw (22) arranged on the base (1), a movable block (23) arranged on the adjusting screw (22), and a movable rod (24) arranged on the movable block (23); The base (1) is provided with an active cavity (11) that cooperates with the active block (23).

3. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 2, characterized in that: The backrest (21) is provided with a connecting groove (211), and one end of the movable rod (24) is rotatably disposed on the connecting groove (211); The movable block (23) is provided with a screw hole (231) that matches the adjusting screw rod (22); The movable block (23) is provided with a supporting sliding block (232), and the movable cavity (11) is provided with a supporting sliding groove (12) that matches the supporting sliding block (232).

4. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 3, characterized in that: The first connecting belt (311) is provided with a protrusion (3111), and the second connecting belt (312) is provided with a groove (3121) matching the protrusion (3111).

5. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 4, characterized in that: The middle parts of the first connecting belt (311) and the second connecting belt (312) are both hollow in design; a first tooth groove (3112) is provided on the inner wall of the first connecting belt (311); a second tooth groove (3122) is provided on the inner wall of the second connecting belt (312); the first tooth groove (3112) and the second tooth groove (3122) are in opposite directions.

6. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 5, characterized in that: The adjusting member (313) comprises a connecting shell (3131) arranged on the first connecting belt (311) and the second connecting belt (312), a rotating shaft (3132) arranged on the connecting shell (3131), a first gear (3133) arranged on the rotating shaft (3132) and matched with the first tooth groove (3112), and a second gear (3134) arranged on the rotating shaft (3132) and matched with the second tooth groove (3122).

7. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 6, characterized in that: The fixing auxiliary unit (4) comprises a shoulder massager (41) rotatably arranged on the base (1), a connecting block (42) arranged on the shoulder massager (41), a positioning shaft (43) arranged on the connecting block (42), a limiting shaft (44) arranged on the connecting block (42), and a spring (45) arranged on the connecting block (42).

8. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 7, characterized in that: The shoulder massager (41) is provided with a positioning slot (411) that matches the positioning shaft (43); The positioning shaft (43) comprises a bevel gear (431) arranged on the connecting block (42), and a sliding shaft (432) arranged on the bevel gear (431).

9. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 8, characterized in that: The sliding shaft (432) is cylindrical, and the axis of rotation of the shoulder massager (41) is coaxial with the axis of the sliding shaft (432); The cross-sectional area of ​​the helical gear (431) gradually increases toward the outside.

10. The head fixation device for femtosecond laser-assisted surgery as claimed in claim 9, characterized in that: The base (1) is provided with a limiting sliding groove (13) that cooperates with the limiting shaft (44), and the base (1) is provided with a telescopic groove (14) that cooperates with the spring (45).

Images