Femtosecond laser surgery patient supporting system

Abstract

The invention discloses a femtosecond laser operation patient supporting system, and belongs to the technical field of ophthalmologic operation treatment. The system comprises a femtosecond operation therapeutic instrument, the femtosecond operation therapeutic instrument comprises a scanning lens, a supporting system comprises an operation fixed bed arranged relative to the femtosecond operation therapeutic instrument, the operation fixed bed comprises a bed body capable of moving in a multi-axis mode and a binding helmet used for binding the head of a patient, and the binding helmet is fixedly connected with the bed body; side restraint units and a bottom fine adjustment unit are arranged in the restraint helmet, and the side restraint units are arranged on the two sides of the interior of the restraint helmet so as to restrain the two sides of the head of a patient; the bottom fine adjustment unit is arranged at the bottom of the binding helmet to finely adjust the distance and pressure of the head of the patient relative to the scanning lens. The head of a patient can be fixed, the distance between eyeballs in the head and the femtosecond operation therapeutic apparatus is adjusted, and the pressure between the eyeballs and the femtosecond operation therapeutic apparatus is adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic surgical treatment, and in particular to a femtosecond laser surgery patient support system. Background Art

[0002] Lasers were invented in the 1960s. With its strong directivity, high brightness, and good monochromaticity, lasers have developed rapidly in the fields of industry, agriculture, medicine, national defense, and scientific research. In the 1990s, a new type of ultrashort and ultrafast laser, femtosecond laser, began to appear and was applied in various fields. Its pulse width is compressed to the femtosecond level, 1 femtosecond is equal to one quadrillionth of a second (1×10-1 5 seconds). Such fast pulsed lasers have the advantages of higher peak power density, extremely small heat-affected zone, and accurate ablation threshold in the fields of micro-processing in industry and medicine, which has led to its faster development.

[0003] In recent years, femtosecond laser technology has been introduced into the field of medical ophthalmology. Its application principle is to utilize its extremely short pulse width and smaller light pulse energy to obtain extremely high peak power and extremely strong focusing ability, which can complete precise cutting in biological tissues.

[0004] During femtosecond surgery, the scanning lens needs to be pressed against the eyeball to perform surgery. The position and pressure of the scanning lens relative to the human eyeball not only depends on the scanning lens, but is also directly affected by the patient's head. However, patients often lie on the operating table, which has great uncertainty in movement and can easily interfere with the quality of the surgery. Summary of the invention

[0005] In view of this, it is necessary to provide a femtosecond laser surgery patient support system to solve the problem that the uncertain movement of the patient's head interferes with the quality of the surgery.

[0006] The present invention provides a femtosecond laser surgery patient support system, which is used in conjunction with a femtosecond surgical therapeutic instrument. The femtosecond surgical therapeutic instrument includes a scanning lens, and the support system includes a surgical fixation bed arranged relative to the femtosecond surgical therapeutic instrument. The surgical fixation bed includes a bed body that can move in multiple axes and a restraining helmet for restraining the patient's head, and the restraining helmet is fixedly connected to the bed body; a side restraining unit and a bottom fine-tuning unit are arranged inside the restraining helmet, and the side restraining units are arranged on both sides of the inside of the restraining helmet for restraining both sides of the patient's head; the bottom fine-tuning unit is arranged at the bottom of the restraining helmet for fine-tuning the distance and pressure of the patient's head relative to the scanning lens.

[0007] Furthermore, the fine-tuning unit includes a plurality of water bags, which are fixedly connected to the restraint helmet and protrude from the restraint helmet. The plurality of water bags are arranged in an array along the inner wall of the restraint helmet. The plurality of water bags are interconnected. The plurality of water bags can abut the occipital part of the patient's head and adjust the distance and pressure of the patient's eyes relative to the femtosecond surgical treatment device.

[0008] Furthermore, the fine-tuning unit includes a micro-adjustment module, which includes a first infusion pipeline and a micro-pump. Both ends of the first infusion pipeline are respectively connected to the water bag and the micro-pump. The micro-pump can pump liquid into the water bag to achieve volume adjustment of the water bag.

[0009] Furthermore, the fine-tuning unit also includes a pumping module, which is connected to the water bag and can quickly fill and discharge the water bag.

[0010] Furthermore, the side restraint unit includes an inflatable first airbag, and two first airbags are arranged on both sides of the restraint helmet, and the first airbags can abut against the temples of the patient's head.

[0011] Furthermore, the side restraint unit also includes an inflatable second airbag, which is embedded in the first airbag. The expansion coefficient of the second airbag is smaller than that of the first airbag. The second airbag can abut against the temples of the patient's head to fine-tune the position of the patient's head.

[0012] Furthermore, the side restraint unit also includes an inflatable third airbag, which is arranged on both sides of the interior of the restraint helmet, and the third airbag can abut against the cheeks of the patient's head.

[0013] Furthermore, the side restraint unit also includes an inflatable fourth airbag, which is connected to the restraint helmet and is arranged between the two first airbags. The fourth airbag can abut against the top of the patient's head.

[0014] Furthermore, the side restraint unit also includes a gas distributor and a gas source, the gas inlet of the gas distributor is connected to the gas source through a pipeline, and the multiple gas outlets of the gas distributor are connected to different airbags through pipelines.

[0015] Furthermore, the surgical fixation bed also includes a multi-axis transmission unit, which is connected to the bed body and can adjust the height and position angle of the bed body.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) A femtosecond laser surgery patient support system of the present invention is provided with a surgical fixed bed, including a bed body that can move in multiple axes and a restraint helmet for restraining the patient's head. The bed body can drive the patient to move in multiple axes relative to the femtosecond surgical therapeutic instrument to achieve a rough adjustment of the positions of the two, ensuring that the scanning lens of the femtosecond surgical therapeutic instrument can be set relative to the patient's eyes. The restraint helmet is fixedly connected to the bed body to form a relatively stable support structure, which can ensure that the connection between the restraint helmet and the bed body is stable.

[0018] (2) A femtosecond laser surgery patient support system of the present invention has a side restraint unit and a bottom fine-tuning unit inside the restraint helmet. The side restraint units are arranged on both sides inside the restraint helmet. The side restraint units can position and restrain the sides of the patient's head, hindering the horizontal movement of the patient's head. The bottom fine-tuning unit is arranged at the bottom of the restraint helmet. The occipital part of the patient's head can abut against the bottom fine-tuning unit. The bottom fine-tuning unit can fine-tune the distance between the patient's eyeball and the scanning lens. The elastic eyeball will slightly deform when the distance changes, thereby changing the pressure of the eyeball relative to the scanning lens, thereby avoiding excessive pressure on the eyeball by the scanning lens, and getting closer to the ideal environment of zero gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present invention and constitute a part of this application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the restraint helmet in the present invention. Figure 1 ;

[0022] Figure 3 This is a schematic diagram of the structure of the restraint helmet in the present invention. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the structure of the restraint helmet in the present invention. Figure 1 ;

[0024] Figure 5 It is a structural schematic diagram of the bottom fine-tuning unit in the present invention;

[0025] Figure 6 The schematic diagram of the connection structure between the side restraint unit and the bottom fine-tuning unit in the present invention is Figure 1 ;

[0026] Figure 7 The schematic diagram of the connection structure between the side restraint unit and the bottom fine-tuning unit in the present invention is Figure 2 ;

[0027] Figure 8 It is a schematic diagram of the structure of the gas distributor in the present invention.

[0028] In the figure, 100, a femtosecond surgical treatment device; 110, a scanning lens;

[0029] 200, surgical fixation bed; 210, bed body; 220, restraint helmet; 221, side restraint unit; 221a, first airbag; 221b, second airbag; 221c, third airbag; 221d, fourth airbag; 221e, gas distributor; 222, bottom fine-tuning unit; 222a, water bag; 222b, micro-adjustment module; 222c, extraction module; 230, multi-axis transmission unit. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0031] The femtosecond laser surgery patient support system in this embodiment relates to the field of ophthalmic surgery treatment technology. The airbag in the side restraint unit 221 is used to position and fix the patient's head in the horizontal direction to prevent the patient's head from shifting during femtosecond surgery. The water bag 222a in the bottom fine-tuning unit 222 supports the patient's headrest and can slightly adjust the distance between the patient's eyeball and the femtosecond surgery treatment device 100, thereby adjusting the pressure of the laser scanning lens relative to the human eye.

[0032] See also Figures 1 to 8 In this embodiment, a femtosecond laser surgery patient support system is used in conjunction with a femtosecond surgery therapeutic apparatus 100. The scanning lens 110 of the femtosecond surgery therapeutic apparatus 100 can perform laser surgery on the patient's eyeball to complete the surgery on the eyeball. The support system includes a surgical fixation bed 200 arranged relative to the femtosecond surgery therapeutic apparatus 100. The patient can lie on the surgical fixation bed 200, and the femtosecond surgery therapeutic apparatus 100 performs laser surgery on the patient. The surgical fixation bed 200 can fix the patient's head and adjust the distance between the eyeball in the head and the femtosecond surgery therapeutic apparatus 100, so as to adjust the pressure between the eyeball and the femtosecond surgery therapeutic apparatus 100.

[0033] The surgical fixed bed 200 includes a bed body 210 that can move in multiple axes and a restraining helmet 220 for restraining the patient's head. The bed body 210 can drive the patient to move in multiple axes relative to the femtosecond surgical therapeutic apparatus 100, realize the rough adjustment of the positions of the two, and ensure that the scanning lens 110 of the femtosecond surgical therapeutic apparatus 100 can be set relative to the patient's eyes. The restraining helmet 220 is fixedly connected to the bed body 210 to form a relatively stable support structure, which can ensure that the connection between the restraining helmet 220 and the bed body 210 is stable. A space for restraining the patient's head is formed in the restraining helmet 220, and the restraining helmet 220 can effectively restrain the patient's head and hinder the movement of the patient's head. The restraining helmet 220 can also adjust the distance between the patient's eyeball and the scanning lens 110, and realize the adjustment of the pressure between the eyeball and the femtosecond surgical therapeutic apparatus 100.

[0034] The restraint helmet 220 is provided with a side restraint unit 221 and a bottom fine-tuning unit 222. The side restraint unit 221 is arranged on both sides of the restraint helmet 220. The side restraint unit 221 can position and restrain the side of the patient's head, hindering the horizontal movement of the patient's head. The bottom fine-tuning unit 222 is arranged at the bottom of the restraint helmet 220. The occipital part of the patient's head can abut against the bottom fine-tuning unit 222. The bottom fine-tuning unit 222 can fine-tune the distance between the patient's eyeball and the scanning lens 110. The elastic eyeball will slightly deform when the distance changes, thereby changing the pressure of the eyeball relative to the scanning lens 110, thereby avoiding the scanning lens 110 from exerting excessive pressure on the eyeball, and being closer to the ideal environment of zero gravity.

[0035] During use, the patient lies on the surgical fixed bed 200, and the head enters the internal space of the restraint helmet 220. The side of the head abuts against the side restraint unit 221, and the bottom fine-tuning unit 222 abuts against the occipital part of the head. The side restraint unit 221 can position and fix the side of the head, and the bottom fine-tuning unit 222 can abut against the occipital part of the head. The bed 210 is adjusted so that the patient's eyeball is set relative to the scanning lens 110. After the scanning lens 110 generates pressure relative to the eyeball, the head is adjusted to drop slightly to reduce the pressure of the scanning lens 110 relative to the eyeball, so that the pressure is closer to the ideal environment of zero gravity.

[0036] It should be noted that existing surgical beds are generally rigid structures that can only adjust the human body through mechanical structures. The adjustment range is too large, which is not conducive to fine-tuning the pressure between the human eye and the scanning lens, and can easily cause uncertain medical injuries.

[0037] In some embodiments, see Figures 4 to 7The fine-tuning unit includes a plurality of water bags 222a, which are fixedly connected to the restraint helmet 220 and protrude from the restraint helmet 220. The plurality of water bags 222a are arranged in an array along the inner wall of the restraint helmet 220 to form an arc-shaped abutment area, which abuts against the occipital part of the patient's head to support the occipital part of the patient's head.

[0038] The multiple water bags 222a are interconnected. When the multiple water bags 222a are squeezed at the same time, the liquid in the water bags 222a will be automatically distributed to each water bag 222a. Each water bag 222a can adapt to the curve of the pillow to form different degrees of deformation, so that it can better cooperate with the pillow. The flexible support provided by the water bag 222a can reduce the direct pressure of the restraint helmet 220 on the patient's head and avoid the discomfort that may be caused by excessive rigid restraint.

[0039] By increasing or decreasing the volume of liquid in the water bag 222a and changing the expanded volume of the water bag 222a, a slight adjustment of the distance of the patient's head relative to the femtosecond surgical treatment device 100 can be achieved. The elastic eyeball will deform slightly when the distance changes, thereby changing the pressure of the eyeball relative to the scanning lens 110, thereby avoiding excessive pressure on the eyeball by the scanning lens 110 and getting closer to the ideal environment of zero gravity.

[0040] The water bag 222a can expand or contract as needed to form a flexible support force, and the contact area and pressure distribution of the water bag 222a on the occipital part can be adjusted to achieve fine adjustment of the patient's head. By adjusting the expansion degree of the water bag 222a, the doctor can accurately control the pressure on the patient's eyes to avoid excessive pressure from damaging the eyeball or affecting the accuracy of laser cutting.

[0041] It should be noted that the multiple water bags 222a are connected to form a whole through pipes, and the liquid in the water bags 222a can flow between different water bags 222a to adjust the degree of deformation according to actual needs. The water bags 222a can be filled with warm water or liquids such as oil. Liquids are incompressible, and compared with gases, their expansion and contraction performance is more stable and more conducive to fine control.

[0042] In some embodiments, the fine-tuning unit includes a micro-adjusting module 222b, which includes a first infusion pipeline and a micro-pump. The two ends of the first infusion pipeline are respectively connected to the water bag 222a and the micro-pump. The micro-pump can accurately pump liquid into or out of the water bag 222a to accurately control the expansion or contraction of the water bag 222a. Since the volume change of the water bag 222a directly affects the distance of the patient's head relative to the laser therapy device and the pressure applied to the eyeball, the micro-pump can accurately adjust the expansion degree of the water bag 222a by controlling the amount of liquid injected, thereby fine-tuning the patient's head posture. In this way, precise control at the micron level can be achieved, which is particularly important for surgeries such as femtosecond lasers that require extremely high precision.

[0043] In the specific implementation process, the micro pump can pump liquid into or out of the water bag 222a that has been filled with liquid, so as to promote the expansion or contraction of the water bag 222a, thereby achieving the purpose of adjusting the distance and pressure.

[0044] In some embodiments, the fine-tuning unit further includes a pumping module 222c, which is connected to the water bag 222a and can quickly fill or discharge the water bag 222a. The pumping module 222c can quickly inject or discharge liquid into the water bag 222a, thereby quickly adjusting the volume and internal pressure of the water bag 222a.

[0045] In the specific implementation process, the pumping module 222c includes a pumping pump and a second infusion pipeline. The two ends of the second infusion pipeline are respectively connected to the water bag 222a and the pumping pump. The size of the second infusion pipeline is much larger than that of the first infusion pipeline. The power of the pumping pump is much larger than that of the micro pump. The pumping pump can quickly fill or empty multiple water bags 222a.

[0046] During use, the pumping module 222c can quickly replenish the water bag 222a with liquid before the human body lies on the surgical fixed bed 200, so that the water bag 222a expands to the initial extent. The pumping module 222c can quickly empty the liquid in the water bag 222a after the femtosecond surgical treatment device 100 fails, so that the eyeball quickly separates from the scanning lens 110.

[0047] In some embodiments, see Figure 4 , Figure 6 and Figure 7 The side restraint unit 221 includes an inflatable first airbag 221a, and two first airbags 221a are arranged on both sides of the restraint helmet 220 to provide stable support for both sides of the restraint helmet 220. When the airbags are inflated, the first airbags 221a can closely abut the temples of the patient to form an effective lateral support force, which helps to stabilize the patient's head and reduce the shaking or deviation of the head.

[0048] The expansion and softness of the first airbag 221a can evenly distribute pressure, reduce local pressure points, improve comfort, relieve pressure on the head, and avoid the feeling of oppression that may be caused by traditional fixing devices.

[0049] At the same time, the first airbag 221a can accurately adapt to the temples of the head, ensuring that the head is in an ideal position in the restraint helmet 220. The positioning of the head by the first airbag 221a can ensure that the patient's eyeballs are in a predetermined area, improve the accuracy during treatment or examination, and avoid problems caused by head instability or deviation.

[0050] In some embodiments, the side restraint unit 221 also includes an inflatable second airbag 221b, which is embedded in the first airbag 221a. The second airbag 221b can assist the first airbag 221a in positioning the patient's head so that the patient's eyeballs are in a predetermined area, thereby improving the accuracy during treatment or examination.

[0051] In a specific implementation process, an open area is opened in the middle of the first airbag 221a relative to the outside, and the second airbag 221b is embedded in the open area. The second airbag 221b can be used in conjunction with the first airbag 221a.

[0052] The expansion coefficient of the second airbag 221b is smaller than that of the first airbag 221a. By fine-tuning the expansion amount of the second airbag 221b, the position of the patient's head in the restraint helmet 220 can be accurately adjusted, so that the head can be more accurately positioned in the ideal position. The second airbag 221b is used in combination with the first airbag 221a to provide a multi-level, gradually increasing support force. The first airbag 221a provides greater support initially, and can be further fine-tuned by the second airbag 221b to ensure the optimal position and stability of the head in the restraint system.

[0053] In some embodiments, the side restraint unit 221 further includes an inflatable third airbag 221c, which is disposed on both sides of the interior of the restraint helmet 220. The expansion of the third airbag 221c can enhance the stability of the patient's head by providing additional support. After the third airbag 221c is inflated, it can fit tightly to the cheek area of ​​the patient's head, ensuring that the head does not deviate or become unstable in the restraint helmet 220, especially during treatment, to avoid affecting the accuracy of treatment due to shaking or displacement of the patient's head.

[0054] The third airbag 221c is used in conjunction with the first airbag 221a and the second airbag 221b to provide a more precise adjustment capability. The third airbag 221c can precisely adjust the overall position and posture of the patient's head by fine-tuning the cheeks of the face, ensuring that the head is in an ideal fixed state. This not only helps to ensure the accuracy of treatment, but also helps to improve the comfort of the patient.

[0055] The third airbag 221c is relatively inflated, and can evenly distribute the pressure applied to the patient's cheeks. The flexible design of the airbag can better adapt to the shape of the patient's head and reduce the discomfort or tenderness caused by local pressure concentration.

[0056] In some embodiments, the side restraint unit 221 also includes an inflatable fourth airbag 221d, which is connected to the restraint helmet 220 and is disposed between the two first airbags 221a. The fourth airbag 221d can abut against the top of the patient's head. The fourth airbag 221d can provide additional top support force to further enhance the stability of the head. The stability of the head not only depends on the support on both sides, but also requires support on the top to prevent any deviation or displacement of the head. The expansion of the fourth airbag 221d at the top can ensure that the entire restraint system forms an all-round fixation, thereby enhancing the positioning accuracy of the head.

[0057] The fourth airbag 221d can evenly distribute the pressure applied to the top of the head by expanding and contacting the top of the head. Compared with the traditional rigid fixing device, the flexibility and adjustability of the airbag enable it to expand adaptively according to the shape of the head, thereby providing a more uniform pressure distribution on the top of the head and reducing the possible pressure or discomfort.

[0058] In some embodiments, see Figure 8 The side restraint unit 221 also includes a gas distributor 221e and a gas source. The gas inlet of the gas distributor 221e is connected to the gas source through a pipeline, and the multiple gas outlets of the gas distributor 221e are respectively connected to different air bags through pipelines. The gas source is an air compressor. The gas distributor 221e has an air inlet connected to the air compressor and multiple gas outlets that can be controlled to be on and off. Each gas outlet is respectively connected to an air bag, which can control the expansion and contraction of the air bag, thereby controlling the positioning and fixation of the patient's head by the side restraint unit 221.

[0059] As a centralized gas management system, the gas distributor 221e can distribute the gas from the gas source to multiple airbags evenly and orderly. Through the connection of multiple gas outlets with different airbags, the gas distributor 221e can control the expansion amount of each airbag, thereby achieving precise adjustment of each airbag.

[0060] The gas distributor 221e is connected to the computer through a connector, and the computer can cooperate with the automatic control system for dynamic adjustment. During the treatment process, the gas distributor 221e can automatically adjust the gas flow rate and the pressure of the airbag in real time according to the real-time feedback data (such as the balloon inflation situation, head posture, etc.). Through automatic control, it can quickly respond to changes in different treatment stages or patient needs, ensuring the maximum comfort and treatment effect of the patient during the treatment process.

[0061] In some embodiments, see Figure 1 The surgical bed 200 also includes a multi-axis transmission unit 230, which is connected to the bed 210. The multi-axis transmission unit 230 can accurately adjust the height and angle of the surgical bed through multiple adjustable axial drives. Compared with the traditional single axial adjustment, this multi-axis adjustment enables the bed 210 to be finely adjusted in multiple directions, ensuring that the bed 210 can be accurately adjusted in multiple directions according to the surgical needs and the patient's position. The doctor can flexibly adjust the height and angle of the bed 210 according to the actual needs during the operation to achieve the best operating angle and comfort.

[0062] Workflow: First, start the pumping module 222c to expand the water bag 222a to a predetermined degree. Then, let the patient lie on the surgical fixation bed 200 with his head in the internal space of the restraint helmet 220. Next, open the multiple air outlets on the gas distributor 221e in sequence to inflate the multiple air bags to complete the positioning and fixation of the patient's head. Then, adjust the multi-axis transmission unit 230 so that the patient's eyeball is set relative to the femtosecond surgical therapeutic device 100. While starting the femtosecond surgical therapeutic device 100, adjust the micro-adjustment module 222b to improve the pressure state between the eyeball and the scanning lens 110 by adjusting the expansion degree of the water bag 222a.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered by the present invention.

Claims

1. A femtosecond laser surgery patient support system, used in conjunction with a femtosecond surgical therapeutic apparatus, the femtosecond surgical therapeutic apparatus comprising a scanning lens, characterized in that: The support system includes a surgical fixation bed arranged relative to the femtosecond surgical treatment instrument, the surgical fixation bed includes a bed body that can move in multiple axes and a restraint helmet for restraining the patient's head, and the restraint helmet is fixedly connected to the bed body; the restraint helmet is provided with a side restraint unit and a bottom fine-adjustment unit inside, the side restraint units are arranged on both sides of the inside of the restraint helmet for restraining both sides of the patient's head; the bottom fine-adjustment unit is arranged at the bottom of the restraint helmet for fine-tuning the distance and pressure of the patient's head relative to the scanning lens.

2. A femtosecond laser surgery patient support system according to claim 1, characterized in that: The fine-tuning unit includes a plurality of water bags, which are fixedly connected to the restraint helmet and protrude from the restraint helmet. The plurality of water bags are arranged in an array along the inner wall of the restraint helmet and are interconnected. The plurality of water bags can abut the occipital part of the patient's head and adjust the distance and pressure of the patient's eyes relative to the femtosecond surgical treatment device.

3. A femtosecond laser surgery patient support system according to claim 2, characterized in that: The fine-tuning unit includes a micro-adjusting module, which includes a first infusion pipeline and a micro-pump. The two ends of the first infusion pipeline are respectively connected to the water bag and the micro-pump. The micro-pump can pump liquid into the water bag to adjust the volume of the water bag.

4. A femtosecond laser surgery patient support system according to claim 2 or 3, characterized in that: The fine-tuning unit also includes a pumping module, which is connected to the water bag and can quickly fill and discharge liquid from the water bag.

5. The femtosecond laser surgery patient support system according to claim 2, characterized in that: The side restraint unit includes an inflatable first airbag, and the first airbags are arranged on both sides of the restraint helmet. The first airbags can abut against the temples of the patient's head.

6. A femtosecond laser surgery patient support system according to claim 5, characterized in that: The side restraint unit also includes an inflatable second airbag, which is embedded in the first airbag. The expansion coefficient of the second airbag is smaller than that of the first airbag. The second airbag can abut against the temples of the patient's head to fine-tune the position of the patient's head.

7. The femtosecond laser surgery patient support system according to claim 5, characterized in that: The side restraint unit further comprises an inflatable third airbag, which is arranged on both sides of the interior of the restraint helmet and can abut against the cheeks of the patient's head.

8. The femtosecond laser surgery patient support system according to claim 5, characterized in that: The side restraint unit further includes an inflatable fourth airbag, which is connected to the restraint helmet and disposed between the two first airbags. The fourth airbag can abut against the top of the patient's head.

9. A femtosecond laser surgery patient support system according to any one of claims 5 to 8, characterized in that: The side restraint unit also includes a gas distributor and a gas source. The gas inlet of the gas distributor is connected to the gas source through a pipeline, and the multiple gas outlets of the gas distributor are connected to different airbags through pipelines.

10. The femtosecond laser surgery patient support system according to claim 1, characterized in that: The surgical fixation bed also includes a multi-axis transmission unit, which is connected to the bed body and can adjust the height and position angle of the bed body.

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