Post-operative prone position device for ophthalmic surgery

Abstract

This utility model relates to the field of medical device technology, specifically a postoperative prone device for ophthalmic surgery. It includes a mattress and a head support assembly. The mattress comprises a main body and three detachably mounted first, second, and third pads. Each of the main, first, second, and third pads has an inflation / deflation assembly on its side. The head support assembly includes an adjustable bracket and a prone pillow. The adjustable bracket is placed at the head of the main body, and the prone pillow is detachably mounted on the adjustable bracket and is tilted. The prone pillow has a notch facing the main body. This postoperative prone device for ophthalmic surgery maintains the main, first, second, and third pads in a suitable inflation state, and the air volume of the first, second, and third pads can be adjusted as needed. Obese patients can also adjust the angle of the prone pillow themselves, providing support and fixation for their heads.

Description

Technical Field

[0001] This utility model relates to the field of medical machinery technology, specifically to a postoperative lying device for ophthalmic surgery. Background Technology

[0002] Following ophthalmic surgery (such as retinal detachment repair), obese patients often need to maintain a prone position to promote recovery. Existing prone support mats mostly use a universal design, where the body and head air cushions are typically a single, integrated structure. Because obese patients typically have more fat in their chest, abdomen, and legs, the body air cushions in existing prone support mats cannot adjust their air volume to suit the weight distribution in these areas. This uneven pressure distribution can easily lead to excessive pressure on the chest and abdomen, causing breathing difficulties, visceral discomfort, and other problems. This fails to adequately meet the postoperative needs of obese patients who require prolonged prone positioning, ultimately affecting postoperative healing. Furthermore, the head air cushion of the prone support mat cannot be adjusted to the angle of the obese patient's cervical spine curvature. When supporting the head, the patient's head is prone to slipping, causing eye movement and hindering eye recovery. Therefore, there is an urgent need for a postoperative prone support device for ophthalmic surgery to address these issues. Utility Model Content

[0003] To address the technical problems of existing prone sleeping pads, such as the inability to adjust the air volume according to the weight distribution of the chest, abdomen, and legs of obese patients, leading to uneven pressure distribution, and the inability of the head air cushion to adjust its angle according to the curvature of the cervical spine, causing the head to easily slip off when supporting the head, this invention provides a prone sleeping device for post-ophthalmic surgery. The main pad, first pad, second pad, and third pad maintain a suitable inflation state, and the air volume of the first, second, and third pads can be adjusted as needed. Obese patients can adjust the angle of the prone sleeping pad themselves, which supports and fixes the head to prevent slippage. The head of the obese patient can maintain a natural and comfortable posture while prone, distributing head pressure and reducing the burden on the cervical spine.

[0004] This utility model provides a prone position device after ophthalmic surgery, including a mattress and a head support assembly. The head support assembly is placed at the head of the mattress. The mattress includes a main body and a first, second, and third pad that are detachably mounted on the main body. Inflation and deflation assemblies are provided on the sides of the main body, the first pad, the second pad, and the third pad. The head support assembly includes an adjustable bracket and a prone sleeping pillow. The adjustable bracket is placed at the head of the main body. The prone sleeping pillow is detachably mounted on the adjustable bracket and is tilted. The prone sleeping pillow has a notch facing the main body.

[0005] Furthermore, the main pad has a first groove, a second groove, and a third groove. The first pad is inserted into the first groove, the second pad into the second groove, and the third pad into the third groove. A connecting cloth is fixedly disposed between one side of each of the first, second, and third pads. The size of the first groove matches the size of the first pad, the size of the second groove matches the size of the second pad, and the size of the third groove matches the size of the third pad. The first, second, and third pads are assembled from the main pad. The connecting cloth connects the first, second, and third pads together.

[0006] Furthermore, each of the inflation / deflation components includes an air pump and a solenoid valve. The four air pumps are respectively placed on the sides of the main pad, the first pad, the second pad, and the third pad. Each solenoid valve is provided with an air inlet, an air outlet, and an air exhaust outlet. The air inlet of each solenoid valve is fixedly connected to the air pump. Inflation / deflation pipes are fixedly provided on the main pad, the first pad, the second pad, and the third pad. The air outlet of each solenoid valve is fixedly connected to the inflation / deflation pipe.

[0007] Furthermore, each of the four air pumps is covered with a housing, and each housing contains an electrically connected circuit board and battery box. Each air pump and solenoid valve is electrically connected to the circuit board and battery box. A two-position switch is fixedly installed on the outside of the housing located on the side of the main pad, and the two-position switch is electrically connected to one of the circuit boards. Three-position switches are fixedly installed on the outside of the remaining three housings, and the three three-position switches are electrically connected to the remaining three circuit boards respectively. Pressure sensors are fixedly installed at the bottom of the first pad, the second pad, and the third pad, and the three pressure sensors are electrically connected to the three circuit boards and battery boxes near the first pad, the second pad, and the third pad respectively.

[0008] Furthermore, the adjustable bracket includes a base, a rotating plate, and a support plate. The base is placed at the head of the main cushion. The prone sleeping pillow is detachably mounted on the rotating plate. The rotating plate is rotatably mounted at one end of the base. One end of the support plate is rotatably connected to the middle of the rotating plate. The other end of the support plate is rotatably mounted with two pulleys, and the two pulleys are slidably mounted at the other end of the base. Each pulley is equipped with a locking structure.

[0009] Furthermore, each locking structure includes a ratchet and a pawl. A stand is provided at the lower part of the support plate, and a rotating shaft is rotatably mounted on the stand. The rotating shaft passes through the pulley and the ratchet and is fixedly connected to them. One end of the pawl is rotatably mounted at the lower part of the support plate and is fixedly connected to a wrench. The other end of the pawl is engaged in the ratchet teeth of the ratchet. A spring is fixedly connected between the other end of the pawl and the lower part of the support plate.

[0010] Furthermore, the other end of the base is provided with two sliding grooves, and the two pulleys are slidably disposed in the two sliding grooves respectively. The other end of the base is also provided with two limiting grooves communicating with the two sliding grooves respectively. Limiting heads are fixedly provided at the ends of the two rotating shafts, and each limiting head is located in a limiting groove and can slide. The limiting heads prevent the base and support plate from separating. After the pulleys rotate, they slide back and forth in the sliding grooves. Simultaneously, the limiting heads rotate with the rotating shafts, thus sliding back and forth in the limiting grooves. The limiting heads restrict the sliding range of the pulleys, thereby restricting the adjustment range of the rotating plate angle.

[0011] Furthermore, the mattress also includes a memory foam pad, which is placed on the upper surface of the main body, the first body, the second body, and the third body. The upper surface of the memory foam pad is provided with a gel layer. Memory foam has the advantage of slow rebound, and the memory foam pad increases the comfort of obese patients.

[0012] Furthermore, the interior of the main pad, the first pad, the second pad, and the third pad are each provided with several equally spaced spatial filament fabrics.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This novel post-operative prone sleeping device for ophthalmic patients maintains appropriate inflation of the main, first, second, and third pads based on individual needs and the thickness of the patient's torso, chest, abdomen, and legs. The air volume of the first, second, and third pads can be adjusted as needed to prevent excessive pressure on the chest and abdomen, which could lead to breathing difficulties or visceral discomfort. Obese patients can easily adjust the angle of the prone sleeping pillow, which provides convenient support and fixation for the head, preventing slippage. The head is positioned naturally and comfortably while prone, distributing pressure and reducing cervical spine strain, thus preventing neck muscle strain and pain caused by poor posture. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a postoperative prone device for ophthalmic surgery according to this utility model;

[0016] Figure 2 This is a side view of the main pad, the first pad, the second pad, and the third pad of this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the main pad, the first pad, the second pad, and the third pad of this utility model;

[0018] Figure 4 This is a schematic diagram of the main pad of this utility model;

[0019] Figure 5 This is a schematic diagram of the adjustable bracket of this utility model;

[0020] Figure 6 This is a cross-sectional view of the locking structure of this utility model;

[0021] The numbers in the attached diagram are:

[0022] 1. Main pad; 11. First groove; 12. Second groove; 13. Third groove; 14. Memory foam pad; 15. Gel layer; 2. First pad; 3. Second pad; 4. Third pad; 5. Adjustable bracket; 51. Base; 511. Slide groove; 512. Limiting groove; 52. Rotating plate; 53. Support plate; 54. Stand; 541. Rotating shaft; 5411. Limiting head; 55. Pulley; 56. Ratchet; 57. Pawl; 58. Wrench; 59. Spring; 6. Prone sleeping pillow; 7. Air pump; 8. Solenoid valve; 81. Inflation / depression tube; 9. Housing; 91. Circuit board; 92. Battery box; 93. Two-position switch; 94. Three-position switch; 95. Pressure sensor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-6 As shown, a postoperative prone device for ophthalmic surgery includes a mattress and a head support assembly, with the head support assembly placed at the head of the mattress. The mattress includes a main body 1 and three detachable pads 2, 3, and 4 mounted on the main body 1. Each of the main body 1, first pad 2, second pad 3, and third pad 4 has an inflation / deflation assembly on its side. The head support assembly includes an adjustable bracket 5 and a prone pillow 6. The adjustable bracket 5 is placed at the head of the main body 1, and the prone pillow 6 is detachably mounted on the adjustable bracket 5 and is tilted. The prone pillow 6 has a notch facing the main body 1. The main body 1 comprises four parts, corresponding to the collarbone, hip, knee, and instep of an obese patient. Obese patients typically have more fat in their chest, abdomen, and legs. The first pad 2, second pad 3, and third pad 4 correspond to the chest, abdomen, and legs of obese patients, respectively. Among them, the main pad 1, the first pad 2, the second pad 3 and the third pad 4 are all made of airtight, brushed TPU material.

[0025] Preferably, a pad can be placed at the head of the mattress, and the head support component is then placed on the pad. The pad raises the height of the head support component, ensuring that more obese patients can use the head support component.

[0026] In the postoperative prone sleeping device for ophthalmic patients, the first pad 2, the second pad 3, and the third pad 4 are assembled onto the main pad 1. Based on the individual needs of obese patients and the thickness of their torso, chest, abdomen, and legs (including fat thickness), four inflation / deflation components inflate the main pad 1, the first pad 2, the second pad 3, and the third pad 4 respectively. These pads are maintained at a suitable inflation level. Later, obese patients can adjust the air volume of the first pad 2, the second pad 3, and the third pad 4 according to the thickness of their chest, abdomen, and legs to avoid excessive pressure on the chest and abdomen, which could lead to breathing difficulties, visceral discomfort, and other problems. Simultaneously, the adjustable support 5 can be angled according to the curvature of the cervical spine and the facial contour, thereby adjusting the angle of the prone sleeping pillow 6. The prone sleeping pillow 6 features forehead support and cheek contouring design, allowing obese patients to maintain a natural and comfortable head posture when lying prone. This distributes pressure on the head, reduces the burden on the cervical spine, prevents the obese patient's head from slipping, and avoids problems such as neck muscle strain and soreness caused by poor posture.

[0027] When an obese patient lies prone on the main cushion 1, first cushion 2, second cushion 3, and third cushion 4, their head is placed on the prone sleeping pillow 6 and supported and secured. Their face is directly facing the opening, allowing for normal breathing and distributing pressure on the head. After use, the four inflation / deflation components deflate the main cushion 1, first cushion 2, second cushion 3, and third cushion 4 respectively. First cushion 2, second cushion 3, and third cushion 4 can be detached from the main cushion 1 for easy folding and storage.

[0028] The postoperative prone device for ophthalmic patients in this embodiment maintains appropriate inflation of the main pad 1, first pad 2, second pad 3, and third pad 4, based on the individual needs of obese patients and the thickness of their torso, chest, abdomen, and legs. The air volume of the first pad 2, second pad 3, and third pad 4 can be adjusted as needed to avoid excessive pressure on the chest and abdomen, which could lead to breathing difficulties or visceral discomfort. Obese patients can easily adjust the angle of the prone sleeping pillow 6, which provides convenient support and fixation for the patient's head, preventing it from slipping. This allows the patient's head to be in a natural and comfortable position while prone, distributing pressure on the head, reducing cervical spine burden, and preventing neck muscle strain and pain caused by poor posture.

[0029] In one possible implementation, the main pad 1 has a first groove 11, a second groove 12, and a third groove 13. The first pad 2 is inserted into the first groove 11, the second pad 3 is inserted into the second groove 12, and the third pad 4 is inserted into the third groove 13. A connecting cloth is fixedly disposed between one side of each of the first pad 2, the second pad 3, and the third pad 4. The size of the first groove 11 matches the size of the first pad 2, the size of the second groove 12 matches the size of the second pad 3, and the size of the third groove 13 matches the size of the third pad 4. The first pad 2, the second pad 3, and the third pad 4 are assembled from the main pad 1. The connecting cloth connects the first pad 2, the second pad 3, and the third pad 4 together.

[0030] In one possible implementation, each of the inflation / deflation components includes an air pump 7 and a solenoid valve 8. The four air pumps 7 are respectively placed on the sides of the main pad 1, the first pad 2, the second pad 3, and the third pad 4. Each solenoid valve 8 is provided with an air inlet, an air outlet, and an air outlet. The air inlet of each solenoid valve 8 is fixedly connected to an air pump 7. Inflation / deflation pipes 81 are fixedly installed on the main pad 1, the first pad 2, the second pad 3, and the third pad 4. The air outlet of each solenoid valve 8 is fixedly connected to the inflation / deflation pipe 81. The solenoid valve 8 is a two-position three-way valve. The structure and operation of the air pumps 7 and the solenoid valves 8 are existing technologies and will not be described in detail here.

[0031] When solenoid valve 8 switches to the inflation position, the valve core of solenoid valve 8 connects the air inlet and outlet. Air pump 7 starts, drawing away atmospheric gas and outputting it. The output gas enters through air pump 7 and the air inlet of solenoid valve 8, and is delivered to the inflation / deflation pipe 81 of the main pad 1 through the outlet of solenoid valve 8, thus completing the inflation process of the main pad 1. Similarly, the inflation processes of the first pad 2, the second pad 3, and the third pad 4 can be understood.

[0032] When solenoid valve 8 switches to the exhaust position, the valve core of solenoid valve 8 connects the outlet and the exhaust port. The gas inside the main pad 1 flows back into solenoid valve 8 through the inflation / deflation pipe 81 and is finally discharged from the exhaust port of solenoid valve 8. The exhaust process does not require the participation of air pump 7 and is completed automatically by relying on the air pressure difference. Similarly, the exhaust process of the first pad 2, the second pad 3, and the third pad 4 can be understood.

[0033] In one possible implementation, each of the four air pumps 7 is covered with a housing 9. Each housing 9 contains an electrically connected circuit board 91 and a battery box 92. Each air pump 7 and solenoid valve 8 are electrically connected to the circuit board 91 and the battery box 92. A two-position switch 93 is fixedly installed on the outside of the housing 9 located on the side of the main pad 1. The two-position switch 93 is electrically connected to one of the circuit boards 91. Three-position switches 94 are fixedly installed on the outside of the remaining three housings 9. The three three-position switches 94 are electrically connected to the remaining three circuit boards 91 respectively. Pressure sensors 95 are fixedly installed at the bottom of the first pad 2, the second pad 3, and the third pad 4. The three pressure sensors 95 are electrically connected to the three circuit boards 91 and the battery box 92 near the first pad 2, the second pad 3, and the third pad 4 respectively. That is, the first pressure sensor 95 is electrically connected to the circuit board 91 and battery box 92 near the first pad 2; the second pressure sensor 95 is electrically connected to the circuit board 91 and battery box 92 near the second pad 3; and the third pressure sensor 95 is electrically connected to the circuit board 91 and battery box 92 near the third pad 4.

[0034] The air pump 7 has an air inlet connected to a first pipe, which extends to the outside of the housing 9. When activated, the air pump 7 draws in air from the atmosphere. The housing 9 protects the air pump 7. Preferably, the housing 9 has ventilation holes to facilitate heat dissipation from the air pump 7.

[0035] The battery box 92 supplies power to the circuit board 91, air pump 7, solenoid valve 8, and pressure sensor 95. The structure and communication principle of the circuit board 91 are existing technologies and will not be described in detail here. The circuit board 91 controls the operation of the solenoid valve 8 and air pump 7. The two-position switch 93 and three three-position switches 94 are used to control the opening and closing of the four solenoid valves 8 and air pump 7, respectively.

[0036] Pressure sensor 95 can sense the pressure on the corresponding body parts of obese patients, and then adjust the air volume of the first pad 2, the second pad 3 and the third pad 4.

[0037] The dual-position switch 93 is used for inflating and deflating the main pad 1. The dual-position switch 93 has two modes: the default position is at the bottom; adjusting it upwards to the "plus" position activates the inflation mode, allowing air to be drawn in; when stopping operation, adjusting it downwards to the "minus" position activates the deflation mode, releasing air. The dual-position switch 93 is also a timer switch; it sets the operating time according to the volume of the main pad 1, ensuring sufficient air volume provides support and allowing all air to be expelled after use.

[0038] Three three-position switches 94 are used for inflating and deflating the first pad 2, the second pad 3, and the third pad 4, respectively. Each three-position switch 94 has three modes: the default position is at the bottom; adjusting it upwards to the "middle position" is the inflation mode; adjusting it further upwards to the "plus" position is the adjustment mode; and adjusting it downwards to the "minus" position releases the air when stopping operation. The three-position switches 94 also function as timers, setting the operating time according to the volume of each pad 2, pad 3, and pad 4 to ensure adequate airflow for support and to completely release air after use. Furthermore, based on the pressure signals from the three pressure sensors 95, the airflow, or firmness, of each pad 2, pad 3, and pad 4 is adjusted accordingly.

[0039] When obese patients use the device for the first time, the dual-position switch 93 and the three three-position switches 94 are in their default positions. First, adjust the dual-position switch 93 near the main pad 1 upwards to the "plus" position, and adjust the three three-position switches 94 to the "middle position." The main pad 1, first pad 2, second pad 3, and third pad 4 will then enter inflation mode. The dual-position switches 93 and three-position switches 94 control the working time of each air pump 7 according to the countdown timer designed for the volume. After the timer expires, the air pump 7 will automatically stop inflating. Once the main pad 1, first pad 2, second pad 3, and third pad 4 are fully inflated, they can effectively provide support.

[0040] At this point, the obese patient lies prone on the mattress, adjusting their posture. Depending on the thickness of fat in the patient's chest, abdomen, and legs, one or more three-position switches 94 are selectively adjusted. As the three-position switch 94 is moved upwards to the "plus" position, the pressure sensor 95 converts the pressure signal into an electrical signal, thereby outputting different magnitudes of current. Pressure and current are positively correlated. The magnitude of the current determines the operating time of the air pump 7, which in turn determines the amount of gas output by the air pump 7. For example, if the obese patient has higher abdominal pressure, a larger pressure is applied to the pressure sensor 95 under the second pad 3. The electrical signal output by the pressure sensor 95 is converted into a larger current, resulting in a longer operating time and a larger volume of gas output from the air pump 7. This makes the second pad 3 softer, effectively dispersing the pressure.

[0041] After the obese patient finishes the prone recovery and leaves the mattress, they adjust the dual-position switch 93 and the three three-position switches 94 downwards to the default position. The gas in the main pad 1, the first pad 2, the second pad 3 and the third pad 4 flows in reverse through the inflation / deflation pipe 81 into the four solenoid valves 8, and finally exits from the exhaust port of the solenoid valve 8.

[0042] In one possible implementation, the adjustable bracket 5 includes a base 51, a rotating plate 52, and a support plate 53. The base 51 is placed at the head of the main cushion 1. The prone sleeping pillow 6 is detachably mounted on the rotating plate 52. The rotating plate 52 is rotatably mounted at one end of the base 51. The rotating plate 52 and one end of the base 51 are rotatably connected by a first pin. One end of the support plate 53 is rotatably connected to the middle of the rotating plate 52. The one end of the support plate 53 and the middle of the rotating plate 52 are rotatably connected by a second pin. The other end of the support plate 53 is rotatably provided with two pulleys 55, and the two pulleys 55 are slidably mounted at the other end of the base 51. Each pulley 55 is provided with a locking structure.

[0043] The angle of the prone sleeping pillow 6 can be adjusted according to the individual needs of obese patients.

[0044] When the locking mechanism is opened, the pulley 55 slides back and forth at the other end of the base 51, causing the rotating plate 52 and the support plate 53 to rotate. The angle of the rotating plate 52 is adjusted, thereby adjusting the angle of the prone sleeping pillow 6. Specifically, when the locking mechanism is opened, the pulley 55 can slide forward (the area in front of the patient's head is the front side), at which point the rotating plate 52 rotates forward (the angle of inclination decreases); or the pulley 55 can slide backward (the area behind the patient's head is the back side), at which point the rotating plate 52 rotates backward (the angle of inclination increases).

[0045] When the locking mechanism is closed, pulley 55 is locked. At this time, rotating plate 52, support plate 53 and prone sleeping pillow 6 remain fixed, and the obese patient's head is placed on prone sleeping pillow 6 and supported and fixed.

[0046] Preferably, the prone sleeping pillow 6 is provided with a first Velcro closure, and the rotating plate 52 is provided with a second Velcro closure. The first and second Velcro closures are attached together to make the prone sleeping pillow 6 detachable. The prone sleeping pillow 6 can also be detached and used separately. When the prone sleeping pillow 6 is placed on a table, obese patients can perform prone recovery in a sitting position. At this time, the face is directly facing the notch of the prone sleeping pillow 6, which allows for normal breathing and distributes head pressure.

[0047] In one possible implementation, the locking structure includes a ratchet 56 and a pawl 57. A base 54 is fixedly mounted on the lower part of the support plate 53. A rotating shaft 541 is rotatably mounted on the base 54, passing through and fixedly connected to the pulley 55 and the ratchet 56. One end of the pawl 57 is rotatably mounted on the lower part of the support plate 53 and fixedly connected to a wrench 58. One end of the pawl 57 is rotatably connected to the lower part of the support plate 53 via a third pin. The other end of the pawl 57 engages with the ratchet teeth of the ratchet 56. A spring 59 is fixedly connected between the other end of the pawl 57 and the lower part of the support plate 53. Two bearings are mounted on the base 54, and both ends of the rotating shaft 541 are rotatably connected to the two bearings to achieve rotation.

[0048] The person turns the wrench 58 clockwise as needed. The wrench 58 causes the pawl 57 to rotate clockwise, lifting the other end of the pawl 57 upwards and disengaging it from the ratchet teeth of the ratchet wheel 56. The spring 59 is then compressed. At this point, the pawl 57 can rotate, allowing the pulley 55 and the rotating shaft 541 to rotate as well. The pulley 55 slides back and forth as needed to adjust the rotating plate 52 to a suitable angle.

[0049] The person then manually turns the wrench 58 in the opposite direction (the wrench 58 rotates counterclockwise). The wrench 58 drives the pawl 57 to rotate counterclockwise. The other end of the pawl 57 descends and re-engages into the ratchet teeth of the ratchet wheel 56. The spring 59 is in an extended state. The pressure of the spring 59 prevents the pawl 57 from rotating. The pulley 55 and the rotating shaft 541 remain fixed. Finally, the rotating plate 52, the support plate 53, and the prone sleeping pillow 6 remain fixed. The rotating plate 52, the support plate 53, and the prone sleeping pillow 6 then support and fix the head of the obese patient.

[0050] In one possible implementation, the other end of the base 51 is provided with two sliding grooves 511, and the two pulleys 55 are slidably disposed in the two sliding grooves 511 respectively. The other end of the base 51 is also provided with two limiting grooves 512 communicating with the two sliding grooves 511 respectively. The ends of the two rotating shafts 541 are each fixedly provided with limiting heads 5411, and each limiting head 5411 is located in the limiting groove 512 and can slide. The limiting heads 5411 prevent the base 51 and the support plate 53 from separating. After the pulleys 55 rotate, the pulleys 55 slide back and forth in the sliding grooves 511. At the same time, the limiting heads 5411 rotate with the rotating shafts 541 and thus slide back and forth in the limiting grooves 512. The limiting heads 5411 limit the sliding range of the pulleys 55, thereby limiting the adjustment range of the angle of the rotating plate 52.

[0051] In one possible implementation, the mattress further includes a memory foam pad 14, which is placed on the upper surface of the main pad 1, the first pad 2, the second pad 3, and the third pad 4. A gel layer 15 is disposed on the upper surface of the memory foam pad 14. Memory foam has the advantage of slow rebound, and the memory foam pad 14 increases the comfort of obese patients. The gel layer 15 is honeycomb-shaped and can be adhered to the upper surface of the memory foam pad 14. The gel layer 15 is adhered according to specific needs. When obese patients directly contact the gel layer 15, the gel layer 15 increases the cooling sensation.

[0052] As one possible implementation, the main pad 1, first pad 2, second pad 3, and third pad 4 are each internally provided with several equally spaced space-grade fabric panels (not shown in the figure). These space-grade fabric panels are made of PVC material. Because the space-grade fabric panels are flexible, after inflation, the panels stand upright and provide some support, preventing severe collapse of the mattress when an obese patient lies prone on it. After deflation, the space-grade fabric panels flatten out of the main pad 1, first pad 2, second pad 3, and third pad 4.

[0053] The above-described embodiments are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A postoperative prone device for ophthalmic surgery, characterized in that, The device includes a mattress and a head support assembly, the head support assembly being placed at the head of the mattress; the mattress includes a main body (1) and a first body (2), a second body (3) and a third body (4) detachably mounted on the main body (1), the sides of the main body (1), the first body (2), the second body (3) and the third body (4) are provided with inflation / deflation assemblies, the head support assembly includes an adjustable bracket (5) and a prone sleeping pillow (6), the adjustable bracket (5) being placed at the head of the main body (1), the prone sleeping pillow (6) being detachably mounted on the adjustable bracket (5) and the prone sleeping pillow (6) being inclined, the prone sleeping pillow (6) having a notch facing the main body (1).

2. The postoperative prone device for ophthalmic surgery according to claim 1, characterized in that, The main pad (1) has a first groove (11), a second groove (12) and a third groove (13). The first pad (2) is inserted into the first groove (11), the second pad (3) is inserted into the second groove (12), and the third pad (4) is inserted into the third groove (13). A connecting cloth is fixedly provided between one side of the first pad (2), the second pad (3) and the third pad (4).

3. The postoperative prone device for ophthalmic surgery according to claim 2, characterized in that, Each of the inflation / deflation components includes an air pump (7) and a solenoid valve (8). The four air pumps (7) are respectively placed on the sides of the main pad (1), the first pad (2), the second pad (3), and the third pad (4). Each solenoid valve (8) is provided with an air inlet, an air outlet, and an air outlet. The air inlet of each solenoid valve (8) is fixedly connected to the air pump (7). The main pad (1), the first pad (2), the second pad (3), and the third pad (4) are all fixedly provided with inflation / deflation pipes (81). The air outlet of each solenoid valve (8) is fixedly connected to the inflation / deflation pipes (81).

4. The postoperative prone device for ophthalmic surgery according to claim 3, characterized in that, Each of the four air pumps (7) is covered with a housing (9). Each housing (9) has an electrically connected circuit board (91) and battery box (92) fixedly installed inside. Each air pump (7) and solenoid valve (8) are electrically connected to the circuit board (91) and battery box (92). A two-position switch (93) is fixedly installed on the outside of the housing (9) located on the side of the main pad (1). The two-position switch (93) is electrically connected to one of the circuit boards (91). A three-position switch (94) is fixedly installed on the outside of the remaining three housings (9). The three three-position switches (94) are electrically connected to the remaining three circuit boards (91) respectively. A pressure sensor (95) is fixedly installed at the bottom of the first pad (2), the second pad (3), and the third pad (4). The three pressure sensors (95) are electrically connected to the three circuit boards (91) and battery box (92) near the first pad (2), the second pad (3), and the third pad (4) respectively.

5. The postoperative prone device for ophthalmic surgery according to claim 1, characterized in that, The adjustable bracket (5) includes a base (51), a rotating plate (52), and a support plate (53). The base (51) is placed at the head of the main cushion (1). The prone sleeping pillow (6) is detachably mounted on the rotating plate (52). The rotating plate (52) is rotatably mounted at one end of the base (51). One end of the support plate (53) is rotatably connected to the middle of the rotating plate (52). The other end of the support plate (53) is rotatably mounted with two pulleys (55), and the two pulleys (55) are slidably mounted at the other end of the base (51). Each pulley (55) is provided with a locking structure.

6. The postoperative prone device for ophthalmic surgery according to claim 5, characterized in that, The locking structure includes a ratchet (56) and a pawl (57). A stand (54) is fixedly installed on the lower part of the support plate (53). A rotating shaft (541) is rotatably installed on the stand (54). The rotating shaft (541) passes through the pulley (55) and the ratchet (56) and is fixedly connected to them. One end of the pawl (57) is rotatably installed on the lower part of the support plate (53) and is fixedly connected to the wrench (58). The other end of the pawl (57) is engaged in the ratchet teeth of the ratchet (56). A spring (59) is fixedly connected between the other end of the pawl (57) and the lower part of the support plate (53).

7. The postoperative prone device for ophthalmic surgery according to claim 6, characterized in that, The other end of the base (51) is provided with two sliding grooves (511), and the two pulleys (55) are respectively slidably disposed in the two sliding grooves (511). The other end of the base (51) is also provided with two limiting grooves (512) respectively communicating with the two sliding grooves (511). The ends of the two rotating shafts (541) are fixedly provided with limiting heads (5411), and each limiting head (5411) is located in the limiting groove (512) and can slide.

8. The postoperative prone device for ophthalmic surgery according to claim 1, characterized in that, The mattress also includes a memory foam pad (14), which is placed on the upper surface of the main body (1), the first body (2), the second body (3) and the third body (4), and the upper surface of the memory foam pad (14) is provided with a gel layer (15).

9. The postoperative prone device for ophthalmic surgery according to claim 1, characterized in that, The main pad (1), the first pad (2), the second pad (3) and the third pad (4) are each provided with several spaced wire cloths that are evenly distributed inside.

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