A photodynamic therapy postoperative nursing bed with a light shield

Abstract

The application relates to the technical field of nursing, in particular to a nursing bed with a light shield for photodynamic postoperation, which comprises a bed body, mounting blocks are symmetrically fixed on the front and rear sidewalls of the bed body, a mounting frame is fixed on the top of the two mounting blocks at the same end of the bed body, a closed space is formed above the bed body through cooperation of a first light shield cloth, a second light shield cloth, a first light shield plate and a second light shield plate, so that a dim space is created, the patient can rest and recover without affecting other patients, a nursing mechanism is arranged, medical staff can nurse the patient under the condition that the first light shield cloth and the second light shield cloth are closed, sunlight is reduced, the patient's recovery is facilitated, the light transmission area for observation of the nursing mechanism can filter ultraviolet rays and infrared rays, and the radiation influence of light on the patient's head is weakened.

Description

Technical Field

[0001] This invention relates to the field of nursing, and more particularly to a nursing bed with a light shield for use after photodynamic therapy. Background Technology

[0002] Photodynamic therapy, also known as ALA photodynamic therapy, involves applying ALA photosensitizer to the affected skin area, typically extending 1 cm beyond the lesion. Then, a light source is directly irradiated onto the area where the photosensitizer has been applied. The main purpose is to kill specific diseased cells through light irradiation, thereby producing a certain therapeutic effect. Patients should not be exposed to light after using the medication.

[0003] Existing technology discloses some invention patents for light-shielding care. Chinese patent application number 201820177487.4 discloses a medical nursing bed with light-shielding function, including a base plate, a first support leg and a second support leg. One end of the first support leg is fixedly connected to a first bed board. Slide rails are provided on both sides of the first bed board. An armrest is rotatably connected to the first support leg in the middle of the base plate. A bottom box is fixedly connected to the bottom end of the first bed board. A drawer is slidably connected in the bottom box. Light-shielding covers are rotatably connected to both sides of the second bed board. A cylinder is installed on a support plate connected to one end of the second support leg. A pneumatic rod is provided at one end of the cylinder. One end of the pneumatic rod is connected to the second bed board through a ball joint.

[0004] Because the overactive sebaceous glands are reversibly damaged after photodynamic therapy, sebum secretion decreases, causing local skin dryness. At this time, medical moisturizers are needed for wet compresses and cold sprays. When applying wet compresses and cold sprays to the patient's head, in order to reduce sunlight exposure to the affected area, the patient is usually shielded from sunlight. However, during the recovery process, medical staff also need to temporarily care for the patient's head. During the care process, it is necessary to remove the shield, as it is inconvenient to continuously shield the head. Therefore, a nursing bed with a light shield is needed to continue to shield the head during care and filter the transmitted light radiation, reducing the impact of ultraviolet rays on the patient's head. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where it is necessary to remove the shield during the nursing process, making it inconvenient to continuously shield and protect the head. Therefore, this invention proposes a nursing bed with a light shield for use after photodynamic therapy.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a nursing bed with a light shield for photodynamic therapy surgery, comprising a bed body, mounting blocks symmetrically fixed on the front and rear side walls of the bed body, a mounting frame fixed on the top of the two mounting blocks located at the same end of the bed body, a first light shield fixed between the tops of the two mounting frames, a second light shield fixed on the inner side of the two mounting frames, a first light shield cloth symmetrically fixed on the two vertical rods of the mounting frame on the left side, and a second light shield cloth symmetrically fixed on the two vertical rods of the mounting frame on the right side, the first light shield cloth and the second light shield cloth on the same side being connected by a zipper;

[0007] A drive mechanism is symmetrically installed between the two mounting brackets, and the two drive mechanisms respectively drive the first light-blocking cloth and the second light-blocking cloth on both sides to move;

[0008] Both of the second light-blocking sheets have a nursing mechanism installed inside, and both nursing mechanisms are used to provide care to the patient when the first light-blocking sheet and the second light-blocking sheet are closed.

[0009] Preferably, the driving mechanism includes a motor, a first hollow rod, and a limiting plate. The motor is fixed to the left side of the left mounting bracket via a connecting frame. The output shaft of the motor passes through the left mounting bracket and is fixed to a rotating rod. The right end of the rotating rod is rotatably connected to the right mounting bracket. The outer ring of the rotating rod is provided with a first thread and a second thread. The first thread and the second thread are in opposite directions. The outer ring of the first thread is threaded with a plurality of first thread sleeves. All the first thread sleeves are fixedly connected to the first light-shielding cloth on the same side. The outer ring of the second thread is threaded with a second thread sleeve. The bottom outer wall of the second thread sleeve is provided with a slot.

[0010] The first hollow rod is fixedly connected to the top of the second light-blocking cloth. The top of the first hollow rod is inserted into the inside of the slot. A first spring is fixed on the outer wall of the top of the first hollow rod. The end of the first spring away from the first hollow rod is fixedly connected to the inner wall of the slot.

[0011] The limiting plate is fixed to the side wall of the first light shield. A limiting groove is formed at the bottom of the limiting plate. Limiting pins are fixed on the outer walls of all the first and second threaded sleeves. All the limiting pins are slidably connected to the limiting groove.

[0012] The outer ring of the rotating rod is equipped with an elastic component, which is used to provide elastic support to the side of the second threaded sleeve.

[0013] Preferably, the elastic component includes a first stop and a second stop. The first stop is rotatably connected to the outer ring of the rotating rod. The first stop is fixedly connected to the limiting plate via a connecting rod. A second hollow rod is fixed to the outer wall of the first stop. The second hollow rod is fixedly and through-connected to the second light-blocking cloth. A second spring is fixed to the left side of the first stop. A first ring is fixed to the left end of the second spring. The first ring is slidably connected to the outer wall of the rotating rod.

[0014] The second stop is rotatably connected to the outer ring of the rotating rod and located between the first thread and the second thread. The second stop is fixedly connected to the limiting plate. A third spring is fixed to the right side of the second stop. A second ring is fixed to the right end of the third spring. The second ring is slidably connected to the outer wall of the rotating rod.

[0015] Preferably, the nursing mechanism includes two electric telescopic rods, a cavity, two first openings, a second opening, and two connecting ports. The two electric telescopic rods are respectively fixed inside the first hollow rod and the second hollow rod, and the telescopic ends of the two electric telescopic rods are each fixed with a round rod.

[0016] The cavity is formed inside the second light-shielding cloth, and the two connecting ports are respectively formed on the sides of the first hollow rod and the second hollow rod. The two sides of the cavity are respectively connected to the first hollow rod and the second hollow rod through the connecting ports at corresponding positions.

[0017] Two first openings are symmetrically opened through one side of the second light-shielding cloth, and both first openings are connected to the cavity. The second opening is opened through the front side of the second light-shielding cloth and is connected to the cavity. The first interlayer cloth and the second interlayer cloth are fixed together between the two round rods from bottom to top.

[0018] A circular rubber sheet is fixedly connected to the edge of the first opening. The surface of the circular rubber sheet has multiple dividing slits arranged in a circular array, so that multiple triangular blocking pieces are formed in the middle of the circular rubber sheet. A solar film is fixedly connected to the edge of the second opening.

[0019] Preferably, both of the two round rods have grooves at their tops. Vertical plates are fixed inside both the first hollow rod and the second hollow rod. The bottom ends of the two vertical plates are inserted into the corresponding grooves. Track grooves are formed on the front sides of both vertical plates. Each track groove includes a vertical groove, a first guide groove, a second guide groove, and a third guide groove. The top of the first guide groove communicates with the vertical groove, the bottom of the first guide groove communicates with the top of the second guide groove, the bottom of the second guide groove communicates with the top of the third guide groove, and the bottom of the third guide groove communicates with the vertical groove. A first one-way limiting component is installed at the top opening of the first guide groove, and a second one-way limiting component is installed at the bottom opening of the third guide groove. Both the first and second one-way limiting components are used to limit the movement trajectory of the pin during its downward movement.

[0020] A bracket is fixed to the outer wall of the round rod, and a U-shaped frame is slidably connected inside the bracket. One end of the U-shaped frame passes through the side wall of the round rod and extends into the interior of the groove. A pin is fixed to the side of the U-shaped frame inside the groove facing the track groove. The pin is slidably connected to the vertical groove. Two rotating shafts are fixed together between the two legs of the U-shaped frame. An inclined plate is sleeved on the outside of each of the two rotating shafts. Two limiting rods are fixed to the side wall of the bracket, and the two limiting rods are slidably connected to the two inclined plates respectively.

[0021] Preferably, the first unidirectional limiting component includes a first rotating shaft, a first baffle is fixed to the outer wall of the first rotating shaft, a first magnet is fixed to the end of the first baffle away from the first rotating shaft, and a second magnet is fixedly embedded in the inner top surface of the communication opening between the vertical groove and the first guide groove, and the first magnet and the second magnet repel each other.

[0022] Preferably, the second unidirectional limiting component includes a second rotating shaft, a second baffle is fixed to the outer wall of the second rotating shaft, a third magnet is fixed to the end of the second baffle away from the second rotating shaft, and a fourth magnet is fixedly embedded in the inner bottom surface of the communication opening between the vertical groove and the third guide groove, and the third magnet and the fourth magnet attract each other.

[0023] Preferably, the second threaded sleeve has an installation groove on its left side, the second ring is slidably connected to the installation groove, and a limiting crossbar is fixedly connected to the surface of the second ring, the end of the limiting crossbar being in contact with the end face of the first threaded sleeve at the corresponding position;

[0024] A third hollow rod is fixedly inserted through the top of the second light-shielding cloth. The third hollow rod is located to the left of the first hollow rod. The top of the third hollow rod penetrates the outer wall of the second threaded sleeve. The third hollow rod communicates with the mounting groove. A push rod is vertically slidably connected inside the third hollow rod. The top of the push rod extends into the interior of the mounting groove and has an inclined surface. The bottom of the push rod extends below the third hollow rod. A fourth spring is fixed to the outer wall of the push rod through a protrusion. The bottom of the fourth spring is fixedly connected to the inner wall of the third hollow rod.

[0025] A fixing rod is fixed to the side wall of the bed. A V-shaped plate is rotatably connected to the outside of the fixing rod. The left side plate of the V-shaped plate abuts against the bottom of the push rod. A protrusion is fixed to the bottom of the first hollow rod. The right side plate of the V-shaped plate cooperates with the protrusion. A reset component is installed at the bottom of the right side plate of the V-shaped plate. The reset component is used to restore the V-shaped plate to its original position.

[0026] Preferably, the reset assembly includes a counterweight and an L-shaped rod. The counterweight is fixed to the bottom of the right side plate of the V-shaped plate, and the L-shaped rod is fixed to the outer wall of the fixing rod. The L-shaped rod cooperates with the bottom of the right side plate of the V-shaped plate.

[0027] Preferably, a light is installed at the bottom of the first light-shielding plate, and a control switch is fixed on the outer wall of the mounting bracket on the right side.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Medical staff use zippers to close the first and second blackout curtains. Through the cooperation of the first and second blackout curtains and the first and second blackout panels, a closed space is formed above the bed, which helps to create a dim space so that the patient can rest and recover without disturbing other patients. The nursing facility can help medical staff care for the patient with the first and second blackout curtains closed, thereby reducing the entry of sunlight and promoting the patient's recovery. The light-transmitting area for staff to observe can be filtered to block ultraviolet and infrared rays, reducing the radiation impact on the patient's head.

[0030] 2. By setting up a circular rubber sheet, as the medical staff's arm passes through the circular rubber sheet, the triangular blocking piece of the circular rubber sheet will adhere to the medical staff's arm under the action of its own rubber elasticity, reducing the entry of light;

[0031] By installing a solar film, light can pass through, facilitating observation by medical staff. On the other hand, it can filter ultraviolet and infrared rays passing through, reducing the entry of ultraviolet rays and thus reducing the radiation to the head.

[0032] 3. After the second light-blocking cloth is fully stretched out, the second ring extends into the mounting groove and presses against the second threaded sleeve. The second ring first contacts the inclined surface at the top of the push rod, pressing the push rod downward. The bottom of the push rod contacts the V-shaped block. When the push rod moves downward, it pushes the V-shaped block to flip. The right side plate of the V-shaped block flips and contacts the protrusion, thereby providing a push force to the left to straighten the second light-blocking cloth. This helps to prevent the second interlayer cloth from getting stuck when it moves downward. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the bed structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the lighting structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the rotating rod of the present invention;

[0037] Figure 5 This is a cross-sectional view of the structure of the second light-shielding cloth of the present invention;

[0038] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle;

[0039] Figure 7 This is a cross-sectional view of the structure of the first hollow rod of the present invention;

[0040] Figure 8 For the present invention Figure 7 Enlarged view of the structure at point B;

[0041] Figure 9 For the present invention Figure 7 Enlarged view of the structure at point C;

[0042] Figure 10 For the present invention Figure 9 Enlarged view of the structure at point F;

[0043] Figure 11 This is a partial exploded view of the U-shaped frame of the present invention;

[0044] Figure 12 For the present invention Figure 7 Enlarged view of the structure at point D;

[0045] Figure 13 For the present invention Figure 7 Enlarged view of the structure at point E in the middle;

[0046] Figure 14 This is a partial structural cross-sectional view of the third hollow rod of the present invention;

[0047] Figure 15 This is a schematic diagram of the V-shaped plate of the present invention;

[0048] Figure 16 This is a schematic diagram of the vertical plate of the present invention;

[0049] Figure 17 For the present invention Figure 16 Enlarged view of the structure at point H;

[0050] Figure 18 For the present invention Figure 16 Enlarged view of the structure at point G.

[0051] In the diagram: 1. Bed frame; 2. Connecting port; 3. Mounting block; 4. Mounting frame; 5. First light-shielding plate; 6. Second light-shielding plate; 7. First light-shielding cloth; 8. Second light-shielding cloth; 9. Zipper; 10. Motor; 11. First hollow rod; 12. Limiting plate; 13. Rotating rod; 14. First thread; 15. Second thread; 16. First threaded sleeve; 17. Second threaded sleeve; 18. Slot; 19. First spring; 20. Limiting groove; 21. Limiting pin; 22. First stop block; 23. Second stop block; 24. Second hollow rod; 25. Second spring; 26. First ring; 27. Third spring; 28. Second ring; 29. ​​Electric telescopic rod; 30. Cavity; 31. First opening; 32. Second opening; 33. 34. Round rod; 35. First interlayer fabric; 36. Second interlayer fabric; 37. Groove; 38. Vertical plate; 39. Track groove; 30. Vertical groove; 31. First guide groove; 32. Second guide groove; 33. Third guide groove; 44. Bracket; 45. U-shaped frame; 46. Pin; 47. Rotating shaft; 48. Inclined plate; 49. Limiting rod; 40. First rotating shaft; 51. First baffle; 52. Second magnet; 53. Second rotating shaft; 54. Third magnet; 55. Fourth magnet; 56. Mounting groove; 57. Third hollow rod; 58. Push rod; 59. Fourth spring; 60. V-shaped plate; 51. Protrusion; 52. Counterweight; 63. L-shaped rod; 61. Lighting lamp; 62. Control switch; 63. Limit bar; 64. Circular rubber sheet; 65. Solar film. Implementation

[0052] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0053] like Figures 1 to 18 The nursing bed with a light shield for photodynamic therapy after surgery shown includes a bed body 1. Mounting blocks 3 are symmetrically fixed on the front and rear side walls of the bed body 1. The tops of the two mounting blocks 3 located at the same end of the bed body 1 are jointly fixed with a mounting frame 4. A first light shield 5 is jointly fixed between the tops of the two mounting frames 4. A second light shield 6 is fixed on the inner side of the two mounting frames 4. A first light shield 7 is symmetrically fixed on the two vertical rods of the left mounting frame 4. A second light shield 8 is symmetrically fixed on the two vertical rods of the right mounting frame 4. The first light shield 7 and the second light shield 8 on the same side are connected by a zipper 9.

[0054] A drive mechanism is symmetrically installed between the two mounting brackets 4. The two drive mechanisms respectively drive the first light-blocking cloth 7 and the second light-blocking cloth 8 on both sides to move.

[0055] Both second light-blocking sheets 8 have nursing mechanisms installed inside. Both mechanisms are used to care for the patient when the first light-blocking sheet 7 and the second light-blocking sheet 8 are closed. During operation, due to reversible damage to the overactive sebaceous glands after photodynamic therapy, sebum secretion decreases, causing local skin dryness. At this time, medical moisturizers are needed for wet compresses and cold sprays. When applying wet compresses and cold sprays to the patient's head, to reduce sunlight exposure to the affected area, a light shield is usually used to protect the patient from light. However, during the recovery process, medical staff need to temporarily care for the patient's head. During this care, the light shield needs to be removed, making continuous head protection inconvenient. Therefore, a nursing bed with a light-blocking cover is needed to maintain head protection during care and to filter transmitted light radiation, reducing the impact of ultraviolet rays on the patient's head. This embodiment of the invention can... To address the above issues, the specific implementation method is as follows: First, after the patient receives photodynamic therapy, the staff activates the drive mechanism. The drive mechanism moves the first light-blocking cloth 7 and the second light-blocking cloth 8 on both sides of the bed 1 towards each other. After the first light-blocking cloth 7 and the second light-blocking cloth 8 move to their final positions, the medical staff uses the zipper 9 to close the first light-blocking cloth 7 and the second light-blocking cloth 8. Through the cooperation of the first light-blocking cloth 7, the second light-blocking cloth 8, the first light-blocking plate 5, and the second light-blocking plate 6, a closed space is formed above the bed 1, which helps to create a dim space, allowing the patient to rest and recover without affecting other patients. The provided nursing facility can help medical staff care for the patient while the first light-blocking cloth 7 and the second light-blocking cloth 8 are closed, thereby reducing the entry of sunlight and promoting the patient's recovery. The light-transmitting area of ​​the nursing facility for staff to observe can filter ultraviolet and infrared rays, reducing the radiation impact on the patient's head.

[0056] In one embodiment of the present invention, the driving mechanism includes a motor 10, a first hollow rod 11 and a limiting plate 12. The motor 10 is fixed to the left side of the left mounting bracket 4 through a connecting frame. The output shaft of the motor 10 passes through the left mounting bracket 4 and is fixed to a rotating rod 13. The right end of the rotating rod 13 is rotatably connected to the right mounting bracket 4. The outer ring of the rotating rod 13 is provided with a first thread 14 and a second thread 15. The first thread 14 and the second thread 15 are in opposite directions. The outer ring of the first thread 14 is threaded with a plurality of first thread sleeves 16. All the first thread sleeves 16 are fixedly connected to the first light-shielding cloth 7 on the same side. The outer ring of the second thread 15 is threaded with a second thread sleeve 17. The bottom outer wall of the second thread sleeve 17 is provided with a slot 18.

[0057] The first hollow rod 11 is fixedly connected to the top of the second light-blocking cloth 8. The top of the first hollow rod 11 is inserted into the inside of the slot 18. A first spring 19 is fixed on the outer wall of the top of the first hollow rod 11. The end of the first spring 19 away from the first hollow rod 11 is fixedly connected to the inner wall of the slot 18.

[0058] The limiting plate 12 is fixed to the side wall of the first light shield 5. A limiting groove 20 is opened at the bottom of the limiting plate 12. Limiting pins 21 are fixed on the outer wall of all the first screw sleeves 16 and the outer wall of the second screw sleeve 17. All the limiting pins 21 are slidably connected to the limiting groove 20.

[0059] An elastic component is installed on the outer ring of the rotating rod 13. The elastic component is used to provide elastic support for the side of the second threaded sleeve 17. During operation, the first threaded sleeve 16 is initially located on the smooth rod of the rotating rod 13, and the rightmost first threaded sleeve 16 is located on the first thread 14. The motor 10 drives the rotating rod 13 to rotate, and the rotation of the rotating rod 13 drives the first thread 14 to rotate. It is slidably connected to the limiting groove 20 through the limiting pin 21. The first thread 14 drives the first threaded sleeve 16 to move laterally. The first threaded sleeve 16 drives the first light-blocking cloth 7 to move to the right, and drives the adjacent first threaded sleeve 16 to engage with the first thread 14, thereby pulling the first light-blocking cloth 7 open. Since the second thread 15 is opposite to the direction of the first thread 14, the rotation of the rotating rod 13 drives the second threaded sleeve 17 to move to the left. Since the length of the second thread 15 is shorter than that of the first thread 14, the second thread sleeve 17 moves to the middle light rod and pulls the second light-blocking cloth 8 open, disengaging from the second thread 15. The second thread sleeve 17 drives the first hollow rod 11 to move. The first hollow rod 11 passes through the top of the second light-blocking cloth 8, and the outer wall of the first hollow rod 11 is fixedly connected to the second light-blocking cloth 8, thereby driving the second light-blocking cloth 8 to move. When the first light-blocking cloth 7 and the second light-blocking cloth 8 are retracted, the motor 10 reverses, and the first thread sleeve 16 moves in the opposite direction to the light rod at the left end of the rotating rod 13. The second thread sleeve 17 engages with the second thread 15 under the action of the elastic component. Then, the second thread 15 drives the second thread sleeve 17 to move to the light rod at the right end of the rotating rod 13, thereby retracting the first light-blocking cloth 7 and the second light-blocking cloth 8.

[0060] In one embodiment of the present invention, the elastic component includes a first stop 22 and a second stop 23. The first stop 22 is rotatably connected to the outer ring of the rotating rod 13. The first stop 22 is fixedly connected to the limiting plate 12 through a connecting rod. A second hollow rod 24 is fixed to the outer wall of the first stop 22. The second hollow rod 24 is fixedly and through-connected to the second light-blocking cloth 8. A second spring 25 is fixed to the left side of the first stop 22. A first ring 26 is fixed to the left end of the second spring 25. The first ring 26 is slidably connected to the outer wall of the rotating rod 13.

[0061] The second stop 23 is rotatably connected to the outer ring of the rotating rod 13 and located between the first thread 14 and the second thread 15. The second stop 23 is fixedly connected to the limiting plate 12. A third spring 27 is fixed to the right side of the second stop 23, and a second ring 28 is fixed to the right end of the third spring 27. The second ring 28 is slidably connected to the outer wall of the rotating rod 13. During operation, when the first light-blocking cloth 7 and the second light-blocking cloth 8 are pulled open or retracted, the time and distance of movement of the first light-blocking cloth 7 are greater than the time and distance of movement of the second light-blocking cloth 8. A spring 19 and a spring 25 support the first ring 26 when the second light-blocking cloth 8 is pulled open, thereby maintaining the second threaded sleeve 17 and the end of the second thread 15 in contact. When the second thread 15 rotates, it drives the second threaded sleeve 17 to move, thereby driving the second light-blocking cloth 8 to be pulled open. When the second light-blocking cloth 8 is retracted, a third spring 27 supports the second ring 28, thereby maintaining the second threaded sleeve 17 and the end of the second thread 15 in contact. When the second thread 15 rotates, it drives the second threaded sleeve 17 to move, thereby driving the second light-blocking cloth 8 to be retracted.

[0062] As one embodiment of the present invention, the nursing mechanism includes two electric telescopic rods 29, a cavity 30, two first openings 31, a second opening 32 and two connecting ports 2. The two electric telescopic rods 29 are respectively fixed inside the first hollow rod 11 and the second hollow rod 24, and the telescopic ends of the two electric telescopic rods 29 are each fixed with a round rod 33.

[0063] The cavity 30 is opened inside the second light-shielding cloth 8, and the two connecting ports 2 are respectively opened on the sides of the first hollow rod 11 and the second hollow rod 24. The two sides of the cavity 30 are connected to the first hollow rod 11 and the second hollow rod 24 through the corresponding connecting ports 2.

[0064] Two first openings 31 are symmetrically opened through one side of the second light-shielding cloth 8, and both first openings 31 are connected to the cavity 30. The second opening 32 is opened through the front side of the second light-shielding cloth 8 and is connected to the cavity 30. The first interlayer cloth 34 and the second interlayer cloth 35 are fixed together between the two round rods 33 from bottom to top.

[0065] A circular rubber sheet 64 is fixedly connected to the edge of the first opening 31. The surface of the circular rubber sheet 64 has multiple dividing slits arranged in a circular array, forming multiple triangular shielding pieces in the middle of the circular rubber sheet 64. A solar film 65 is fixedly connected to the edge of the second opening 32. During operation, when medical staff need to use medical moisturizer to apply a wet compress or cold spray to the patient, the electric telescopic rod 29 is activated. The two electric telescopic rods 29 push the two circular rods 33 upward, thereby the two circular rods 33 together drive the first interlayer cloth 34 and the second interlayer cloth 35 upward, releasing the shielding of the two first openings 31 and the second opening 32. At this time, the medical staff can pass their hands through the two first openings 31 to care for the patient. The second opening 32 facilitates the medical staff to observe the patient. Through the two first openings 31 and the second opening 32, on the one hand, the medical staff can care for the patient when the first light-blocking cloth 7 and the second light-blocking cloth 8 are closed, and on the other hand, it can reduce the entry of light, thereby reducing the stimulation of sunlight on the patient.

[0066] It should be noted that by setting up a circular rubber sheet 64, as the medical staff's arm passes through the circular rubber sheet 64, the triangular blocking piece of the circular rubber sheet 64 will stick to the medical staff's arm under the action of its own rubber elasticity, reducing the entry of light.

[0067] By setting up a solar film 65, light can pass through, making it easier for medical staff to observe. On the other hand, it can filter ultraviolet and infrared rays from the passing light, reducing the entry of ultraviolet rays and thus reducing the radiation to the head.

[0068] In one embodiment of the present invention, the tops of both round rods 33 are provided with grooves 36, and vertical plates 37 are fixed inside the first hollow rod 11 and the second hollow rod 24. The bottom ends of the two vertical plates 37 are respectively inserted into the corresponding grooves 36. The front sides of the two vertical plates 37 are provided with track grooves 38, which include a vertical groove 3801, a first guide groove 3802, a second guide groove 3803, and a third guide groove 3804. The top of the first guide groove 3802 communicates with the vertical groove 3801. The bottom of the first guide groove 3802 is connected to the top of the second guide groove 3803, the bottom of the second guide groove 3803 is connected to the top of the third guide groove 3804, and the bottom of the third guide groove 3804 is connected to the vertical groove 3801. A first one-way limiting component is installed at the top opening of the first guide groove 3802, and a second one-way limiting component is installed at the bottom opening of the third guide groove 3804. Both the first one-way limiting component and the second one-way limiting component are used to limit the movement trajectory of the pin 41 during its downward movement.

[0069] A bracket 39 is fixed to the outer wall of the round rod 33. A U-shaped frame 40 is slidably connected inside the bracket 39. One end of the U-shaped frame 40 passes through the side wall of the round rod 33 and extends into the interior of the groove 36. A pin 41 is fixed to the side of the U-shaped frame 40 inside the groove 36 facing the track groove 38. The pin 41 is slidably connected to the vertical groove 3801. Two rotating shafts 42 are fixed together between the two legs of the U-shaped frame 40. An inclined plate 43 is sleeved on the outside of each of the two rotating shafts 42. Two limiting rods 44 are fixed to the side wall of the bracket 39. The two limiting rods 44 are slidably connected to the two inclined plates 43 respectively. During operation, when the two first openings 31 and the second opening 32 are sealed after the nursing is completed, the two electric telescopic rods 29 are reset, driving the two round rods 33 to move downward. The downward movement causes the bracket 39 to move downward, which in turn causes the U-shaped frame 40 to move downward. The downward movement of the U-shaped frame 40 causes the pin 41 to move downward. Under the action of the first one-way limiting component, the pin 41 moves from the vertical groove 3801 to the first guide groove 3802, causing the U-shaped frame 40 to move laterally. The U-shaped frame 40 causes the two rotating shafts 42 to move laterally, and the two rotating shafts 42 cause the inclined plate 43 to move laterally. Since the inclined plate 43 is slidably connected to the limiting rod 44, when the rotating shaft 42 moves in the direction of the limiting rod 44, the two inclined plates 43 flip outward to form a "figure-eight" shape, thereby opening up the interlayer at the second opening 32. This facilitates the smooth entry of the second interlayer fabric 35 into the cavity 30 and reduces the possibility of the bottom of the second interlayer fabric 35 colliding with the edge of the second opening 32.

[0070] In one embodiment of the present invention, the first unidirectional limiting component includes a first rotating shaft 45, a first baffle 46 fixed to the outer wall of the first rotating shaft 45, a first magnet 47 fixed to the end of the first baffle 46 away from the first rotating shaft 45, and a second magnet 48 fixedly embedded in the inner top surface of the communication opening between the vertical groove 3801 and the first guide groove 3802. The first magnet 47 and the second magnet 48 repel each other. During operation, due to the repulsive property of the first magnet 47 and the second magnet 48, the first baffle 46 is located inside the vertical groove 3801. When the pin 41 moves from bottom to top, the pin 41 can push open the first baffle 46 and continue to move. Under the action of the repulsive force, the first baffle 46 flips back into the vertical groove 3801. When the pin 41 moves from top to bottom, the pin 41 abuts against the top of the first baffle 46 and can only enter the first guide groove 3802.

[0071] In one embodiment of the present invention, the second unidirectional limiting component includes a second rotating shaft 49, a second baffle 50 fixed to the outer wall of the second rotating shaft 49, a third magnet 51 fixed to the end of the second baffle 50 away from the second rotating shaft 49, and a fourth magnet 52 fixedly embedded in the inner bottom surface of the communication opening between the vertical groove 3801 and the third guide groove 3804. The third magnet 51 and the fourth magnet 52 attract each other. During operation, due to the mutual attraction between the first magnet 47 and the second magnet 48, the pin 41 can push open the second baffle 50 during the process of moving from the third guide groove 3804 to the vertical groove 3801. Subsequently, the second baffle 50 becomes vertical under the action of gravity and sticks tightly under the action of attraction, so that the pin 41 will not enter the third guide groove 3804 during the process of moving from bottom to top.

[0072] In one embodiment of the present invention, a mounting groove 53 is provided on the left side of the second threaded sleeve 17, the second ring 28 is slidably connected to the mounting groove 53, and a limiting crossbar 63 is fixedly connected to the surface of the second ring 28, the end of the limiting crossbar 63 is in contact with the end face of the first threaded sleeve 16 at the corresponding position.

[0073] The top of the second light-blocking cloth 8 is fixedly connected to the third hollow rod 54. The third hollow rod 54 is located to the left of the first hollow rod 11. The top of the third hollow rod 54 passes through the outer wall of the second threaded sleeve 17. The third hollow rod 54 is connected to the mounting groove 53. The push rod 55 is vertically slidably connected inside the third hollow rod 54. The top of the push rod 55 extends into the interior of the mounting groove 53 and has an inclined surface. The bottom of the push rod 55 extends to the bottom of the third hollow rod 54. The outer wall of the push rod 55 is fixedly connected to the fourth spring 56 by a protrusion. The bottom of the fourth spring 56 is fixedly connected to the inner wall of the third hollow rod 54.

[0074] A fixing rod is fixed to the side wall of the bed body 1. A V-shaped plate 57 is rotatably connected to the outside of the fixing rod. The left side plate of the V-shaped plate 57 abuts against the bottom of the push rod 55. A protrusion 58 is fixed to the bottom of the first hollow rod 11. The right side plate of the V-shaped plate 57 cooperates with the protrusion 58. A reset assembly is installed at the bottom of the right side plate of the V-shaped plate 57. The reset assembly is used to restore the V-shaped plate 57 to its original position. During operation, after the second light-blocking cloth 8 is fully opened, the second ring 28 extends into the mounting groove 5. 3. The second threaded sleeve 17 is squeezed and the second ring 28 extends into the mounting groove 53 and first contacts the inclined surface of the top of the push rod 55, pressing the push rod 55 downward. The bottom of the push rod 55 contacts the V-shaped block. When the push rod 55 moves downward, it pushes the V-shaped block to flip. The right side plate of the V-shaped block flips and contacts the protrusion 58, thereby providing a push force to the left to the protrusion 58, so that the second light-blocking cloth 8 is straightened, which helps to avoid the situation where the second interlayer cloth 35 is stuck when it moves downward.

[0075] In one embodiment of the present invention, the reset assembly includes a counterweight 59 and an L-shaped rod 60. The counterweight 59 is fixed to the bottom of the right side plate of the V-shaped plate 57, and the L-shaped rod 60 is fixed to the outer wall of the fixing rod. The L-shaped rod 60 cooperates with the bottom of the right side plate of the V-shaped plate 57. During operation, when the second light-shielding cloth 8 is retracted, the right side plate of the V-shaped plate 57 abuts against the top of the L-shaped rod 60 under the action of the counterweight 59, in preparation for the next opening of the second light-shielding cloth 8.

[0076] As one embodiment of the present invention, a lighting lamp 61 is installed at the bottom of the first light shield 5, and a control switch 62 is fixed on the outer wall of the mounting bracket 4 on the right side; the lighting lamp 61 can provide light when medical staff are caring for patients, which is conducive to medical staff performing quick and accurate wet compresses and cold sprays on patients. At the same time, the lighting lamp 61 is a 15-watt lamp, which provides convenience for medical staff without affecting patients.

[0077] Working principle of this invention:

[0078] Because the overactive sebaceous glands suffer reversible damage after photodynamic therapy, resulting in decreased sebum secretion and local skin dryness, medical moisturizers are needed for wet compresses and cold sprays. When applying wet compresses and cold sprays to the patient's head, to reduce sunlight exposure to the affected area, a shading method is usually used to protect the patient from light. However, during the recovery process, medical staff need to temporarily care for the patient's head, requiring the removal of the shading during this process, making continuous head protection inconvenient. Therefore, a nursing bed with a light-shielding cover is needed to maintain head protection during care and to filter transmitted light radiation, reducing the impact of ultraviolet rays on the patient's head. This embodiment of the invention solves the above problems. The specific implementation method is as follows: First, after the patient receives photodynamic therapy... Staff activate the drive mechanism, which moves the first and second light-blocking cloths 7 and 8 on both sides of the bed 1 towards each other. After the first and second light-blocking cloths 7 and 8 move to their final positions, medical staff use zippers 9 to close the first and second light-blocking cloths 7 and 8. Through the cooperation of the first and second light-blocking cloths 7 and 8, the first and second light-blocking panels 5 and 6, a closed space is formed above the bed 1, which helps to create a dim space, allowing patients to rest and recover without disturbing other patients. The nursing facility allows medical staff to care for patients with the first and second light-blocking cloths 7 and 8 closed, thereby reducing the entry of sunlight and promoting patient recovery. The light-transmitting area of ​​the nursing facility for staff to observe can filter ultraviolet and infrared rays, reducing the radiation impact on the patient's head.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A nursing bed with a light-shielding cover for use after photodynamic therapy, comprising a bed frame (1), characterized in that, Mounting blocks (3) are symmetrically fixed on the front and rear side walls of the bed (1). Mounting brackets (4) are fixed together on the top of the two mounting blocks (3) located at the same end of the bed (1). A first light-shielding plate (5) is fixed together between the tops of the two mounting brackets (4). A second light-shielding plate (6) is fixed on the inner side of the two mounting brackets (4). A first light-shielding cloth (7) is fixed on the two vertical rods of the mounting bracket (4) on the left side. A second light-shielding cloth (8) is symmetrically fixed on the two vertical rods of the mounting bracket (4) on the right side. The first light-shielding cloth (7) and the second light-shielding cloth (8) on the same side are connected by a zipper (9). A drive mechanism is symmetrically installed between the two mounting brackets (4), and the two drive mechanisms respectively drive the first light-blocking cloth (7) and the second light-blocking cloth (8) on both sides to move; Both of the second light-blocking sheets (8) are equipped with nursing mechanisms inside, and both nursing mechanisms are used to care for the patient when the first light-blocking sheet (7) and the second light-blocking sheet (8) are closed; The driving mechanism includes a motor (10), a first hollow rod (11), and a limiting plate (12). The motor (10) is fixed to the left side of the mounting frame (4) on the left side by a connecting bracket. The output shaft of the motor (10) passes through the mounting frame (4) on the left side and is fixed with a rotating rod (13). The right end of the rotating rod (13) is rotatably connected to the mounting frame (4) on the right side. The outer ring of the rotating rod (13) is provided with a first thread (14) and a second thread (15). The first thread (14) and the second thread (15) are in opposite directions. The outer ring of the first thread (14) is threaded with a plurality of first thread sleeves (16). All the first thread sleeves (16) are fixedly connected to the first light-blocking cloth (7) on the same side. The outer ring of the second thread (15) is threaded with a second thread sleeve (17). The bottom outer wall of the second thread sleeve (17) is provided with a slot (18). The first hollow rod (11) is fixedly connected to the top of the second light-blocking cloth (8). The top of the first hollow rod (11) is inserted into the inside of the slot (18). A first spring (19) is fixed on the top outer wall of the first hollow rod (11). The end of the first spring (19) away from the first hollow rod (11) is fixedly connected to the inner wall of the slot (18). The limiting plate (12) is fixed on the side wall of the first light shield (5). A limiting groove (20) is provided at the bottom of the limiting plate (12). Limiting pins (21) are fixed on the outer wall of all the first threaded sleeves (16) and the outer wall of the second threaded sleeves (17). All the limiting pins (21) are slidably connected to the limiting groove (20). The outer ring of the rotating rod (13) is equipped with an elastic component, which is used to provide elastic support for the side of the second threaded sleeve (17).

2. The nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 1, characterized in that, The elastic component includes a first stop (22) and a second stop (23). The first stop (22) is rotatably connected to the outer ring of the rotating rod (13). The first stop (22) is fixedly connected to the limiting plate (12) through a connecting rod. A second hollow rod (24) is fixed to the outer wall of the first stop (22). The second hollow rod (24) is fixedly connected to the second light-blocking cloth (8). A second spring (25) is fixed to the left side of the first stop (22). A first ring (26) is fixed to the left end of the second spring (25). The first ring (26) is slidably connected to the outer wall of the rotating rod (13). The second stop (23) is rotatably connected to the outer ring of the rotating rod (13) and located between the first thread (14) and the second thread (15). The second stop (23) is fixedly connected to the limiting plate (12). A third spring (27) is fixed on the right side of the second stop (23). A second ring (28) is fixed on the right end of the third spring (27). The second ring (28) is slidably connected to the outer wall of the rotating rod (13).

3. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 2, characterized in that, The nursing facility includes two electric telescopic rods (29), a cavity (30), two first openings (31), a second opening (32), and two connecting ports (2). The two electric telescopic rods (29) are respectively fixed inside the first hollow rod (11) and the second hollow rod (24). The telescopic ends of the two electric telescopic rods (29) are each fixed with a round rod (33). The cavity (30) is opened inside the second light-shielding cloth (8), and the two connecting ports (2) are respectively opened on the sides of the first hollow rod (11) and the second hollow rod (24). The two sides of the cavity (30) are respectively connected to the first hollow rod (11) and the second hollow rod (24) through the connecting ports (2) at corresponding positions. Two first openings (31) are symmetrically opened through one side of the second light-shielding cloth (8), and both first openings (31) are connected to the cavity (30). The second opening (32) is opened through the front side of the second light-shielding cloth (8), and the second opening (32) is connected to the cavity (30). The first interlayer cloth (34) and the second interlayer cloth (35) are fixed together between the two round rods (33) from bottom to top. A circular rubber sheet (64) is fixedly connected to the edge of the first opening (31). The surface of the circular rubber sheet (64) is provided with multiple dividing slits in a circular array, so that multiple triangular shielding sheets are formed in the middle of the circular rubber sheet (64). A solar film (65) is fixedly connected to the edge of the second opening (32).

4. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 3, characterized in that, Both of the two round rods (33) have grooves (36) at their tops. Vertical plates (37) are fixed inside the first hollow rod (11) and the second hollow rod (24). The bottom ends of the two vertical plates (37) are inserted into the corresponding grooves (36). Track grooves (38) are provided on the front sides of the two vertical plates (37). The track grooves (38) include a vertical groove (3801), a first guide groove (3802), a second guide groove (3803), and a third guide groove (3804). The top of the first guide groove (3802) communicates with the vertical groove (3801). The bottom of the first guide groove (3802) is connected to the top of the second guide groove (3803), the bottom of the second guide groove (3803) is connected to the top of the third guide groove (3804), the bottom of the third guide groove (3804) is connected to the vertical groove (3801), a first one-way limiting component is installed at the top opening of the first guide groove (3802), and a second one-way limiting component is installed at the bottom opening of the third guide groove (3804). Both the first one-way limiting component and the second one-way limiting component are used to limit the movement trajectory of the pin (41) during its downward movement. A bracket (39) is fixed on the outer wall of the round rod (33). A U-shaped frame (40) is slidably connected inside the bracket (39). One end of the U-shaped frame (40) extends through the side wall of the round rod (33) and into the interior of the groove (36). A pin (41) is fixed on the side of the U-shaped frame (40) inside the groove (36) facing the track groove (38). The pin (41) is slidably connected to the vertical groove (3801). Two rotating shafts (42) are fixed together between the two legs of the U-shaped frame (40). An inclined plate (43) is sleeved on the outside of the two rotating shafts (42). Two limiting rods (44) are fixed on the side wall of the bracket (39). The two limiting rods (44) are slidably connected through the two inclined plates (43) respectively.

5. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 4, characterized in that, The first unidirectional limiting component includes a first rotating shaft (45), a first baffle (46) is fixed on the outer wall of the first rotating shaft (45), a first magnet (47) is fixed on the end of the first baffle (46) away from the first rotating shaft (45), and a second magnet (48) is fixedly embedded in the inner top surface of the communication opening between the vertical groove (3801) and the first guide groove (3802). The first magnet (47) and the second magnet (48) repel each other.

6. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 4, characterized in that, The second unidirectional limiting component includes a second rotating shaft (49), a second baffle (50) is fixed on the outer wall of the second rotating shaft (49), a third magnet (51) is fixed at one end of the second baffle (50) away from the second rotating shaft (49), and a fourth magnet (52) is fixedly embedded in the inner bottom surface of the communication opening between the vertical groove (3801) and the third guide groove (3804), and the third magnet (51) and the fourth magnet (52) attract each other.

7. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 2, characterized in that, The second threaded sleeve (17) has an installation groove (53) on its left side. The second ring (28) is slidably connected to the installation groove (53). A limiting crossbar (63) is fixedly connected to the surface of the second ring (28). The end of the limiting crossbar (63) is in contact with the end face of the first threaded sleeve (16) at the corresponding position. The top of the second light-blocking cloth (8) is fixedly connected to a third hollow rod (54). The third hollow rod (54) is located to the left of the first hollow rod (11). The top of the third hollow rod (54) passes through the outer wall of the second threaded sleeve (17). The third hollow rod (54) is connected to the mounting groove (53). A push rod (55) is vertically slidably connected inside the third hollow rod (54). The top of the push rod (55) extends into the interior of the mounting groove (53) and has an inclined surface. The bottom of the push rod (55) extends below the third hollow rod (54). A fourth spring (56) is fixed to the outer wall of the push rod (55) by a protrusion. The bottom of the fourth spring (56) is fixedly connected to the inner wall of the third hollow rod (54). A fixing rod is fixed to the side wall of the bed (1), and a V-shaped plate (57) is rotatably connected to the outside of the fixing rod. The left side plate of the V-shaped plate (57) abuts against the bottom of the push rod (55). A protrusion (58) is fixed to the bottom of the first hollow rod (11). The right side plate of the V-shaped plate (57) cooperates with the protrusion (58). A reset component is installed at the bottom of the right side plate of the V-shaped plate (57). The reset component is used to restore the V-shaped plate (57) to its original position.

8. A nursing bed with a light-shielding cover for post-photodynamic therapy according to claim 7, characterized in that, The reset assembly includes a counterweight (59) and an L-shaped rod (60). The counterweight (59) is fixed to the bottom of the right side plate of the V-shaped plate (57), and the L-shaped rod (60) is fixed to the outer wall of the fixing rod. The L-shaped rod (60) cooperates with the bottom of the right side plate of the V-shaped plate (57).

9. A nursing bed with a light-shielding cover for use after photodynamic therapy according to claim 1, characterized in that, A light (61) is installed at the bottom of the first light shield (5), and a control switch (62) is fixed on the outer wall of the mounting bracket (4) on the right side.

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