CN113209494A - Light-resistant device for photodynamic therapy of facial and neck lentigo rubra - Google Patents

Abstract

The invention relates to a light-shading device for photodynamic therapy of nevus flammeus at face and neck, which is provided with a transverse frame and two groups of frame plates matched with the transverse frame to form a basic facial contour, the two groups of frame plates are transversely adjusted by a transverse driving device to further adapt to the face of a patient, shading is realized by rotating shading cloth on a covering structure, a flexible iron wire can be adaptively bent according to the facial contour of the patient, the shading plate in the iron wire adopts a double-layer shading cloth structure to facilitate the shading size adjustment work, the light-shading structure can be opened at any time under any condition, so that the opening is more convenient, medical personnel can not repeatedly stick the shading cloth on the face of the patient to cause serious discomfort, and the covering structure of the facial frame structure can not only adapt to patients without the facial contour size, adopt the clad can structure to press on patient's face, conveniently adjust the size in the region of shining the facula, the practicality is strong, is fit for promoting.

Description

Light-resistant device for photodynamic therapy of facial and neck lentigo rubra

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a light-shading device for photodynamic treatment of nevus flammeus on face and neck.

Background

Port-wine stain (PWS), also known as Port-wine stain, is a congenital capillary malformation, which is better to develop in face, neck and scalp, the morbidity rate in people is about 3-5 per mill, the disease usually can not be self-healed, can progress with age without treatment or insufficient treatment, even can develop poor prognosis such as nodule, pyogenic granuloma, spontaneous hemorrhage or hemorrhage after trauma, and the like, and meanwhile, skin damage often occurs in the exposed parts of the bodies such as the head, the face and the neck, which seriously affects the beauty of patients, leads to increase of mental pressure and decrease of life quality of the patients, and has serious adverse effects on the physiology, psychology and life quality of the patients, the traditional methods for clinically treating Port-wine stain have isotope application, refrigeration, microwave, laser, and the like, but the non-selective treatment methods have limited curative effects, the incidence of complications such as scar, depigmentation, pigmentation, even cachexia, etc. is high, and the complications are gradually eliminated in clinical treatment. Therefore, there is a clinical need for a new therapy that overcomes the limitations of conventional therapies, that is not only effective in removing abnormally proliferating blood vessels, but also has minimal damage to normal cells in adjacent tissues and a low recurrence rate after treatment.

At present, the best method for treating port wine stain angioma at home and abroad is a photodynamic treatment technology. Photodynamic Therapy (PDT) is a Therapy for destroying diseased tissues by photochemical reaction caused by radiation of a specific sensitization light source with the help of a photosensitizer and the participation of oxygen molecules so as to achieve the treatment purpose, is a new targeted treatment technology capable of selectively removing wine stain hemangioma without damaging normal tissues, has important breakthroughs in the aspects of selectivity to the diseased region, accuracy of the acting region, protection to normal tissues, treatment effect and the like, is a first-choice method for treating nevus flammeus, has acquired the invention prize of the country and has the world leading level. The PDT has the characteristic advantages of treating port wine stain angioma: precisely and selectively damaging capillary vessel network with dermal superficial expansion deformity. ② the scar-free treatment, and does not damage the epidermis layer and the deep dermis layer. Low toxicity, safety and repeated treatment. Fourthly, the treatment time is short and the treatment is convenient. The curative effect is stable and reliable, once the capillary network of the dilated malformation of the wine spot hemangioma is destroyed after PDT treatment, the repair and regeneration are difficult, and the possibility of relapse is very low.

In recent years, photodynamic therapy has the advantages of small side effect, low risk, less bleeding, capability of meeting the expected beauty requirements of patients and the like, and is more and more widely applied to the clinical treatment of the nevus flammeus.

The treatment of nevus flammeus in our hospital is mainly photodynamic treatment, and a PDP photodynamic treatment instrument is adopted, the scheme is mainly that a mode of injecting a Helmhofen injection (photosensitizer) through a vein pump is adopted, so that the nevus flammeus is quickly absorbed by vascular endothelial cells, the photosensitizer generates concentration difference in the vascular endothelial cells and epidermal cells of a body, and then the photodynamic treatment instrument is irradiated, so that the photosensitizer forms singlet oxygen and other factors to achieve the purpose of specifically damaging a malformed capillary network at a focus. However, in order to achieve a better treatment effect, the photodynamic treatment light beam needs to be precisely irradiated on the affected part of the patient, and for the skin of the normal area part around the affected part of the patient, the skin needs to be shielded and protected, so that the skin is prevented from being affected in the process of photodynamic treatment, so that the skin is usually shielded by using black cloth in clinic, and the general treatment steps are as follows: (1) placing the patient in the proper position, and sticking adhesive plaster; (2) pasting a circle of adhesive tape along the edge of the port wine; (3) covering skin except erythema by using black cloth, and sticking a circle of adhesive plaster along the edge; (4) the black cloth covers the neck and even the part below the chest; (5) at this point, intravenous pumping of photosensitizer (hmporfin) begins. (6) Adjusting the probe of the instrument to be aligned with the erythema to start irradiation; (7) and after the irradiation is finished, taking down the black cloth and tearing off the adhesive plaster. In the whole treatment process, the normal skin must be completely shielded, the damage of the light beam irradiation to the normal skin around the pathological changes is avoided, the adhesive tape is tightly attached to the skin without leaving a gap, in the process of carrying out the photodynamic treatment, the adhering condition of the adhesive tape needs to be repeatedly confirmed for many times, the workload is invisibly increased for medical staff, for patients in different age stages, for adults with self-control capability, the above process is carried out after the adults with the self-control capability are placed, but for children or minors with poor self-control capability, under the condition that the children or minors are easy to move due to the light pain and the like caused by the irradiation in the whole treatment process, at the moment, related personnel are required to fix the head and the body part of the children or minors, the dry part of the children or the minors with poor self-control capability is ensured to be completely exposed to the light source of the photodynamic treatment instrument, therefore, the influence on the treatment effect is avoided, meanwhile, the shielding mode of the black cloth is single, the irradiation area is limited at each time, the general light spot irradiation time for the single-area erythema is about twenty minutes, when large-area multi-area irradiation needs to be performed in sequence, the irradiated area needs to be well adhered in advance, then the black cloth is adhered to the skin around pathological changes needing to be irradiated at each time, the adhering mode is very troublesome in the operation process, the process is complex, and the treatment time is wasted, so that people need to wait for a light shielding device which is convenient and simple for adults and children to use and is used for solving the problems and simultaneously ensuring a good light shielding effect.

Disclosure of Invention

Aiming at the problems, the invention provides a light shading device for photodynamic therapy of nevus flammeus on face and neck, which solves the problems that the light shading device in the prior art is complex to operate, shading cloth needs to be continuously pressed in the shading process for children, the pasting process of the shading cloth is complicated for adults and children, the shading cloth cannot be opened randomly, and the light cannot be irradiated in different regions in different times.

In order to achieve the purpose, the invention provides the following technical scheme that the light-shading device for photodynamic therapy of the nevus flammeus on the face and neck comprises a cross frame, two groups of frame plates which are symmetrically matched are respectively and transversely connected on the cross frame in a sliding manner, a transverse distance adjusting device is connected between the two groups of frames and the cross frame to adjust the distance between the two groups of frame plates, the frame plates respectively comprise an arc transition plate structure and a vertical plate structure which are in sliding fit with the cross frame, the lower end of the vertical plate is vertically and slidably connected with a lower arc plate, the lower arc plate is locked in the vertical position through a locking device connected on the vertical plate, the cross frame, the frame plates and the lower arc plate form a face frame structure matched with the face of a patient, connecting columns are respectively connected on the cross frame and the lower arc plate, a cladding structure is connected on the connecting columns, a plurality of detachable connecting columns are vertically arranged on the vertical plate at intervals, the spliced pole on be connected with the cladding structure, the spliced pole of connecting on the realization riser can be dismantled on the riser, the rotation of cladding structure can realize sheltering from the face of disease, the shading work to the disease is realized to the cooperation of multiunit cladding structure. (ii) a

The hangers are arranged between the two groups of frame plates to bind the device, so that the whole body is hung and bound on the head of a patient.

Preferably, the transverse distance adjusting device comprises a T-shaped sliding groove formed in the lower end of the cross frame, and further comprises a T-shaped sliding block which is in transverse sliding fit with the sliding groove and is installed at the upper end of the transition plate, a bidirectional screw rod in threaded fit with the two sets of T-shaped sliding blocks is rotatably connected in the T-shaped sliding groove, and a driving knob is installed at the end of the bidirectional screw rod.

Preferably, the riser lower extreme open the guide slot that has the T shape of vertical setting, lower arc board upper end be connected with the guide slot complex guide rail of T shape, locking device including opening the spacing hole of multiunit on the guide rail, the riser on threaded connection have one with the spacing hole complex spacer pin of multiunit.

Preferably, the riser on vertical division have multiunit and spliced pole complex round hole, the round hole inside wall on open and to have two sets of slots that set up along radial equipartition, the upper end opening of slot, it has the holding tank to open in the direction of ninety degrees at slot interval on the round hole inside wall, the upper end of holding tank seal, the holding tank of slot lateral wall and one side between be connected one and cross the aqueduct, cross the aqueduct and arrange the initiating terminal of slot part in and be higher than crossing the aqueduct and arrange the initiating terminal of holding tank part in, with riser complex spliced pole on all have two sets of vertical settings and upper end open-ended drum along the circumference equipartition, the drum in vertical sliding fit with cross aqueduct and holding tank complex bayonet lock, bayonet lock and drum in be connected with reset spring between the bottom surface to constitute detachable spliced pole structure.

Preferably, the cladding device comprises a U-shaped frame arranged on a connecting column, a rectangular block is rotatably connected in the U-shaped frame, a cylindrical barrel is vertically arranged on the rectangular block, a flexible iron wire is connected between two ends of the cylindrical barrel, a black cloth structure with a changeable shape is arranged in an area enclosed by the iron wire and the cylindrical barrel, and an angle adjusting and locking device is arranged between the rectangular block and the U-shaped frame and used for adjusting and locking the angle of the rectangular block;

the angle adjustment locking device comprises a disc coaxially installed on the rotating shaft of the rectangular block, a plurality of groups of clamping grooves are formed in the disc along the circumferential direction, the angle adjustment locking device further comprises an extension plate installed on one side of the U-shaped frame, the extension plate is connected with a driving rod in a longitudinal sliding mode, limiting plates are respectively arranged at the front end and the rear end of the driving rod, a first spring sleeved outside the driving rod is arranged between the limiting plate at the front end and the extension plate, and a cylindrical pin matched with the clamping grooves is connected to the limiting plate at the front end.

Preferably, be provided with the black cloth structure of vertical distance adjustable between the iron wire and the cylinder section of thick bamboo with cylinder section of thick bamboo parallel arrangement, be provided with horizontal interval adjustable black cloth structure between two sets of horizontal parallel arrangement's iron wire, intermittent type adjustable black cloth structure is including hanging respectively and establishing on two sets of parallel arrangement's iron wire, the iron wire rather than the shackle on the cylinder section of thick bamboo of parallel arrangement, connect a foldaway black cloth between the shackle on two sets of parallel arrangement's iron wire, connect a foldaway black cloth between the iron wire rather than the shackle on the parallel arrangement's cylinder section of thick bamboo, two sets of black cloth crisscross the laying.

Preferably, the two covering structures at the lower jaw position are detachably provided with lower jaw shielding devices, each lower jaw shielding device comprises two groups of hanging buckles, each hanging buckle comprises a connecting block, each connecting block is connected with an arc-shaped and unsealed arc-shaped rod, each connecting block is elastically connected with a swinging rod which is matched with the arc-shaped rod to form a circular closed area, the end part of each swinging rod is connected with a spring arranged in the corresponding connecting block, so that the detachable hanging buckle structure is formed, an iron wire is connected between the two groups of connecting blocks, elastic lower jaw shielding cloth which can be folded along the iron wire direction is hung on the iron wire, a binding rope is sleeved at the lower end of the lower jaw shielding cloth, the two groups of shielding plates are bound to the lower jaw position of a patient in a matching mode, and the front side and the back side of the shielding cloth are respectively provided with a primary-secondary paste;

the detachable is installed the xiphoid process and is sheltered from the device in the structural facing of lower floor, xiphoid process shelter from the device and include that two sets of hanging establish the knot, hang and establish the knot including the connecting block, connect an arc and the arc pole that does not seal on the connecting block, elastic connection one forms the swinging arms in circular closed region with the arc pole cooperation on the connecting block, swinging arms end connection has the spring of arranging in the connecting block to constitute detachable hanging and establish the knot structure, be connected with the iron wire between two sets of connecting blocks, the iron wire on tie up and tie up the xiphoid process portion that is trapezoidal setting and shelter from cloth, xiphoid process portion shelter from and be provided with the primary and secondary subsides on the cloth.

Preferably, the hangers tie up and tie up the device including installing the otic placode on two sets of risers respectively, the otic placode on the vertical setting of threaded connection revolve twist the round pin, the lower extreme of revolving twist the round pin rotate and connect a connecting plate, connecting plate upper end be connected with the gag lever post that two sets of symmetries set up, the otic placode on open have with gag lever post complex mating holes, cooperation between them realizes that the connecting plate can only carry out the ascending displacement of vertical direction for the otic placode, the lower extreme of connecting plate be connected with two sets of elastic plates towards two otic placodes center direction slopes respectively, the inboard of elastic plate install the buffering cotton, the elastic plate lower extreme be connected with the stay cord.

Preferably, the bed body is matched and connected with an adjusting and locking device between the two groups of ear plates, so that the frame structure with the ear plates is locked on the bed body;

the adjusting and locking device comprises sliding holes which are symmetrically arranged on a bed body, a translation plate is connected in the sliding holes in a sliding mode along the width direction of the bed body, a double-headed lead screw is connected on the bed body in a rotating mode along the width direction, the double-headed lead screw is respectively in threaded fit with the translation plate, the rotating directions of threads matched with the two groups of double-headed lead screws and the translation plate are opposite, one side of the translation plate is connected with a swing rod in a rotating mode towards one side of a frame plate, the swing rod is locked in a vertical position through a rotating and locking device, the upper end of the swing rod is connected with a ratchet, the adjusting and locking device further comprises a transition block connected to a corresponding lug plate, a vertical through rectangular hole is formed in the transition block, an accommodating cavity is formed in the side wall of the rectangular hole, two groups of movable plates are connected in the accommodating cavity in a vertical sliding mode, a fixed shaft is connected between the two groups of movable plates, and a pawl matched with the ratchet is sleeved outside the fixed shaft, a second spring is connected between the lower end of the moving plate and the inner bottom surface of the accommodating cavity, a third spring is connected between the side walls of the accommodating cavity at the end part of the pawl, the end part of the pawl is connected with an unlocking rope which penetrates through the side walls of the accommodating cavity and extends out of the transition block, and the end part of the unlocking rope is connected with a pull ring;

the swing rod is in threaded connection with a screw rod, and one side of the screw rod, which faces the frame plate, is rotatably connected with a supporting cotton stick for supporting the head of a patient.

Preferably, the rotary locking device comprises a pin hole formed in one end, far away from the ratchet, of the swing rod and a cross pin connected to the lower end of the translation plate in a sliding mode in the width direction of the bed body, the cross pin is matched with the pin hole to achieve rotary locking work of the swing rod, and the cross pin is in damping sliding fit with the translation plate;

the bed body is provided with a rectangular through hole for the swing rod to pass through.

The invention has the beneficial effects that: the invention is provided with a transverse frame and two groups of frame plates which are matched with each other to form a basic outline of a face, the transverse driving device is used for transversely adjusting the two groups of frame plates to enable the two groups of frame plates to be adaptive to the width of the face of a patient, the lower arc plate is vertically moved to further adapt to the face of the patient, the transition plate and the lower arc plate are respectively provided with a covering structure, the vertical plate is provided with a plurality of groups of covering structures with adjustable vertical positions, the position between the left, right, upper and lower adjacent covering structures is adjusted to form a structure of a shielding part with adjustable size, shielding is realized by rotating shielding cloth on the covering structure, a flexible iron wire can be adaptively bent according to the outline of the face of the patient, the shielding plates in the iron wire adopt a double-layer shielding cloth structure to facilitate the adjustment of the shielding size, and the shading structure can be opened at any time, thereby being more convenient to open, avoiding serious discomfort caused by repeatedly sticking the shading cloth on the face of the patient by medical care personnel, if sweat exists on the face of the patient, the fixing is more difficult, the covering structure of the face frame structure not only can adapt to the patients without the sizes of the faces, meanwhile, the mask structure is adopted to press the face of the patient without fixing, so that the mask is convenient to open and adjust the size of the area of the irradiation light spot, meanwhile, the locking adjusting device is adopted, so that the head of the frame plate can be worn for adults, good locking and limiting effects on children of the young can be realized through the matching of the pawl and the ratchet, the situation that the children are randomly disturbed in the treatment process is avoided, the workload of medical staff is reduced, the practicability is strong, the operation is simple, and the medical staff is suitable for popularization and use.

Drawings

Fig. 1 is a perspective view of the first stereoscopic structural diagram of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a perspective view three of the three-dimensional structure of the present invention.

Fig. 4 is a front view of the present invention.

Fig. 5 is a perspective view of the present invention.

Fig. 6 is a perspective view of the lower arc plate and its connection part according to the present invention.

Fig. 7 is a perspective view showing a structure of a frame plate and a connection portion thereof according to the present invention.

Fig. 8 is a perspective view of a circular hole and a connection portion thereof on a part of a riser in the present invention.

Fig. 9 is an exploded view of a circular hole in a portion of the riser and its attachment portion of the present invention.

Fig. 10 is a perspective view of the riser of the present invention with a portion of the riser removed.

Fig. 11 is a perspective view of the detachable connecting column structure of the present invention.

Fig. 12 is a partial perspective view of the cover structure of the present invention.

FIG. 13 is a layout diagram of the regions of the present invention.

Fig. 14 is a front view of another embodiment of the present invention.

Fig. 15 is a perspective view of another embodiment of the present invention.

Fig. 16 is a perspective view of the mandibular occlusion device of the present invention.

FIG. 17 is an enlarged view of the portion A of FIG. 16 according to the present invention.

Fig. 18 is a perspective view of the xiphoid process shielding device according to the present invention.

FIG. 19 is an enlarged view of the portion B of FIG. 18 according to the present invention.

Fig. 20 is a perspective view of another embodiment of the present invention.

Fig. 21 is a perspective view showing the structure of the ear binding apparatus of the present invention.

Figure 22 is a partial perspective view of the ear attachment device of the present invention.

Fig. 23 is a perspective view showing a pawl and a connecting portion thereof according to the present invention.

Figure 24 is a partial perspective view of the ear attachment device of the present invention.

Figure 25 is a side view of a partial structure of the lug binding device of the present invention.

FIG. 26 is a perspective view of two sets of swing rods and their connection parts in the present invention.

Reference numerals: 1. a cross frame; 2. a frame plate; 3. a transition plate; 4. a vertical plate; 5. a lower arc plate; 6. connecting columns; 7. a cladding structure; 8. a T-shaped chute; 9. a T-shaped slider; 10. a bidirectional lead screw; 11. a drive knob; 12. a guide groove; 13. a guide rail; 14. a limiting hole; 15. a spacing pin; 16. a circular hole; 17. a slot; 18. accommodating grooves; 19. a transition groove; 20. a cylinder; 21. a bayonet lock; 22. a return spring; 23. a U-shaped frame; 24. a rectangular block; 25. a cylindrical barrel; 26. iron wires; 27. a disc; 28. a card slot; 29. an extension plate; 30. a drive rod; 31. a limiting plate; 32. a first spring; 33. a cylindrical pin; 34. a shackle; 35. folding black cloth; 36. hanging a buckle; 37. connecting blocks; 38. an arcuate bar; 39. a swing lever; 40. binding a rope; 41. a lower jaw blocking cloth; 42. primary and secondary pastes; 43. a xiphoid process shielding cloth; 44. an ear plate; 45. screwing the pin; 46. a connecting plate; 47. a limiting rod; 48. a mating hole; 49. an elastic plate; 50. buffering cotton; 51. pulling a rope; 52. a bed body; 53. a slide hole; 54. a translation plate; 55. a double-ended lead screw; 56. swing link; 57. a ratchet; 58. a transition block; 59. a rectangular hole; 60. an accommodating chamber; 61. moving the plate; 62. a pawl; 63. a second spring; 64. a third spring; 65. unlocking the rope; 67. a screw; 68. supporting the cotton swab; 69. a pin hole; 70. a cross pin; 71. through the aperture.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 26 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiment one, a light-resistant device for photodynamic therapy of nevus flammeus on face and neck comprises a transverse frame 1, wherein two groups of symmetrical and matched frame plates 2 are respectively and transversely connected on the transverse frame 1 in a sliding manner, the transverse frame 1 and the frame plates 2 form a frame structure matched with the face shape of a patient, a transverse spacing adjusting device is connected between the two groups of frames and the transverse frame 1 to adjust the spacing between the two groups of frame plates 2, the frame plates 2 respectively comprise an arc transition plate 3 structure and a vertical plate 4 structure which are in sliding fit with the transverse frame 1, a hanging lug binding device is arranged between the two groups of frame plates to realize the integral hanging and binding on the head of the patient, so that the face frame structure formed by the two groups of vertical plates 4, the transverse frame 1 and the two groups of lower arc plates 5 can be hung on the head of the patient, and after the transverse spacing adjustment is carried out, a user can reliably hang and fix the face frame structure on the ear of the patient, the hanging lug device can adopt a hook type structure to be reliably hung and fixed behind the ear of a patient and is convenient to take, the transverse distance adjusting device comprises a T-shaped sliding groove 8 arranged at the lower end of the transverse frame 1 and a T-shaped sliding block 9 which is in transverse sliding fit with the sliding groove and is arranged at the upper end of the transition plate 3, a two-way lead screw 10 in threaded fit with the two groups of T-shaped sliding blocks 9 is connected in the T-shaped sliding groove 8 in a rotating way, a driving knob 11 is arranged at the end part of the two-way lead screw 10, external threads with opposite thread turning directions are arranged on the two-way lead screw 10, the two groups of T-shaped sliding blocks 9 are respectively in threaded fit with the two groups of external threads on the two-way lead screw 10, and due to the sliding fit effect of the T-shaped sliding blocks 9 and the T-shaped sliding groove 8, the two groups of T-shaped sliding blocks 9 move towards the center or move towards the two sides under the rotation of the two-way lead screw 10, the screw pitches of two groups of external threads on the bidirectional screw rod 10 are kept consistent, so that the moving distances of two groups of frame plates 2 in the moving process can be kept consistent, the adjustment of the size in the transverse direction can be conveniently carried out according to the difference of the size of the face of a user, the lower end of a vertical plate 4 is vertically and slidably connected with a lower arc plate 5, the lower arc plate 5 is locked at the vertical position through a locking device connected to the vertical plate 4, the lower end of the vertical plate 4 is provided with a T-shaped guide groove 12 which is vertically arranged, the upper end of the lower arc plate 5 is connected with a guide rail 13 matched with the T-shaped guide groove 12, so that the lower arc plate 5 can only move along the vertical direction, the adjustment is carried out according to the size of the face of the patient, the lower arc plate is matched with the face of the patient, the locking device comprises a plurality of groups of limit holes 14 arranged on the guide rail 13, the vertical plate 4 is in threaded connection with a limit pin 15 matched with the plurality of groups of limit holes 14, the adjusting device is characterized in that the size of a vertical face is adjusted by vertically moving the lower arc plate 5, after the position is adjusted, the limiting pin 15 is screwed into the limiting hole 14 to limit the vertical relative movement between the lower arc plate 5 and the vertical plate 4, so that the limiting adjusting effect is achieved, the cross frame 1, the frame plate 2 and the lower arc plate 5 form a face frame structure matched with the face of a patient, the cross frame 1, the frame plate 2 and the lower arc plate 5 are adjusted to adapt to the size of the face of the patient by adjusting the positions between the cross frame 1 and the frame plate 2 as well as between the lower arc plate 5, the adjustment is also convenient, the universal applicability is improved, the transition plate 3 and the lower arc plate 5 are respectively connected with a connecting column 6, the connecting columns 6 on the transition plate 3 and the lower arc plate 5 are fixedly installed on the transition plate 3 and the lower arc plate 5, a plurality of groups of detachable connecting columns 6 are vertically arranged on the vertical plate 4 at intervals, the connecting mode of the connecting post 6 on the vertical plate 4 is a detachable structure, the position of the connecting post 6 on the vertical plate 4 can be adjusted in the vertical direction, so that the position in the vertical direction is changed, the adjustment of the face shielding part can be flexibly performed in the using process, the connecting post 6 is connected with the covering structure 7, the connecting post 6 connected on the vertical plate 4 can be detached on the vertical plate 4, the face of a patient can be shielded by the rotation of the covering structure 7, the shading work of the patient can be realized by the matching of a plurality of groups of covering structures 7, in the design process, the forehead part and the position below the neck are shielded, and then the adjustment of the vertical distance is performed, at the moment, the connecting post 6 is fixed on the lower arc plate 5 and the transition plate 3, the mask device can only rotate and adjust in the direction relative to the transition plate 3 and the lower arc plate 5, the connecting post 6 on the vertical plate 4 and the mask device on the connecting post move in the vertical direction to connect the face in the vertical direction, meanwhile, when the face is divided into areas, the detachable connecting post 6 and the mask structure are adopted to be more beneficial to dividing the mask area of the face, the mask can be flexibly attached to the face of a patient through the rotation of the mask device, so that patients, particularly children, can open the face at any time to communicate when feeling any discomfort during the mask, even can open the face mask device under emergency at intervals, and complex mask and face pasting work is not needed any more, and in the using process of the mask device, the positions of the two groups of frame plates 2 are firstly adjusted by screwing the two-way screw rod 10, the frame structure can be better hung on the face of a patient, then the position of the lower arc plate 5 is adjusted according to the size of the face of the patient in the vertical direction, the lower arc plate is attached to the position of the neck of the patient, after the frame structure is adjusted to an appointed position, the frame structure is inserted into a limit hole 14 for limiting and locking by screwing a limit pin 15, at the moment, the covering surface on the lower arc plate 5 and the covering structure 7 on the transition plate 3 can be rotated to the face of the patient to shield the face of the patient as required, and the part between the two parts can be adjusted in a detachable mode due to the vertical position of the connecting column 6, so that the frame structure can be adjusted in an adaptive mode according to the position of the affected part of the patient, the position of the connecting column 6 on the vertical plate 4 is selected to be installed at which position, and then the covering structure 7 on the frame structure rotates, so as to realize the covering effect, which area needs to be irradiated can rotate the covering structure 7 of which area to be irradiated, so as to move the photodynamic to the right above the area for irradiation, the covering structure 7 can rotate correspondingly to cover the corresponding position of the face of the patient, the covering structure 7 not only is convenient to rotate away, but also can be divided into eight different areas on the face of the patient, wherein the forehead part of the face at the position of the transition plate 3 is respectively one area and two areas, the four areas at the position of the vertical plate 4 are respectively two areas of the three and four cheekbones at the upper layer, the five and six areas of the lip and the lower jaw at the lower layer, and the seven and eight areas below the lowest neck part, when the transverse width adjustment is carried out, two sides can be completely covered to the position of the hair of the patient, and the adjacent areas of the covering face can not have gaps, therefore, the positions of the transverse direction and the vertical direction are adjusted, so that the shading effect of the iron wire in the vertical direction is guaranteed, in order to ensure that the adjacent regions cannot generate intermittence, a double-sided adhesive tape is pasted outside the iron wire, then a medical adhesive tape is pasted on the iron wire in an alternating mode, the pasting effect is generated between the medical adhesive tape and the face of a patient, so that the intermittence is avoided, the medical adhesive tape in the pasting mode can be disposable, and different patients can replace new medical adhesive tapes to paste the iron wire;

it can only to need to rotate the clad can device on the spliced pole 6 to open at needs, the clad can device of other positions department continues to keep the effect of clad, can all carry out opening of shading structure at any time under any circumstance, thereby more conveniently open, be unlikely to making medical personnel to repeat and paste shading cloth at patient's face, cause serious discomfort, if patient's face has the sweat, then be difficult to fix more, this facial frame construction's clad can not only adapt to the disease without face size, need not fix simultaneously, adopt clad can structure 7 to press down at patient's face, conveniently open and adjust the regional size of shining the facula, therefore, the clothes hanger is strong in practicability, and is suitable for popularization.

Embodiment two, on the basis of embodiment one, the riser 4 on vertically open have the multiunit with spliced pole 6 complex round hole 16, spliced pole 6 can insert smoothly in the round hole 16, the round hole 16 is provided with the multiunit, conveniently carries out spliced pole 6 of different positions and carries out detachable position control, changes the position of spliced pole 6, can change the vertical position of cladding device on it to carry out the regulation of sheltering from regional position, the regulation here is mainly used for the regulation of the sheltering from device of three, four, five, six regions, open two sets of slots 17 that radially equipartition set up on the round hole 16 inside wall, the upper end opening of slot 17, open holding tank 18 on the inside wall of round hole 16 and the direction that slot 17 spaced ninety degrees, the upper end of holding tank 18 seal, connect a transition groove 19 between the holding tank 18 of one side and the side of slot 17 lateral wall, the starting end of the transition groove 19 arranged in the slot 17 is higher than the starting end of the transition groove 19 arranged in the holding groove 18, the transition groove 19 between the slot 17 and the holding groove 18 is in smooth transition, the transition groove 19 is in a ninety-degree radian, two groups of vertically arranged cylinders 20 with openings at the upper ends are uniformly distributed on the connecting column 6 matched with the vertical plate 4 along the circumference, the cylinders 20 are internally vertically and slidably matched with the clamping pins 21 matched with the transition groove 19 and the holding groove 18, the reset springs 22 are connected between the clamping pins 21 and the inner bottom surfaces of the cylinders 20, so that a detachable connecting column 6 structure is formed, after the connecting column 6 is inserted into the circular hole 16, the cylinder 20 structure on the connecting column 6 can be smoothly inserted into the slot 17 through the slot 17, at the moment, when the reset springs 22 in the cylinders 20 are in a natural extension state, the uppermost ends of the clamping pins are slightly lower than the uppermost ends of the transition groove 19, along with the rotation of spliced pole 6, the up end of bayonet lock 21 and the up end smooth transition of transition groove 19, because the up end smooth transition in the transition groove 19, bayonet lock 21 compresses reset spring 22, and when bayonet lock 21 moved to holding tank 18 in, bayonet lock 21 pushed up the top in holding tank 18, realized the effect of chucking, when dismantling simultaneously, only need the reversal to rotate spliced pole 6 can realize breaking away from.

Third embodiment, on the basis of the first embodiment, the cladding device includes a U-shaped frame 23 installed on a connecting column 6, a rectangular block 24 is rotatably connected in the U-shaped frame 23, a cylindrical tube 25 is vertically installed on the rectangular block 24, a flexible iron wire 26 is connected between two ends of the cylindrical tube 25, the iron wire 26 is wound around two ends of the cylindrical tube 25 and is arranged in a frame-shaped structure, the flexible iron wire 26 can change the shape of the cladding surface to be substantially rectangular, the rectangular shape can be set according to the condition of a user, so as to adjust the size of the cladding surface, a black cloth structure with a changeable shape is arranged in an area surrounded by the iron wire 26 and the cylindrical tube 25, the black cloth structure can adjust the size according to the size of the iron wire 26, so as to adjust the shielding area, an angle adjusting and locking device is arranged between the rectangular block 24 and the U-shaped frame 23, the angle adjusting and locking device is used for adjusting and locking the angle of the rectangular block 24, and the angle is locked after the iron wire 26 in the corresponding area drives the black cloth structure to cover the face of the patient, so that the rectangular block is reliably locked at the current position;

the angle adjusting and locking device comprises a disc 27 coaxially mounted on a rotating shaft of a rectangular block 24, a plurality of groups of clamping grooves 28 are uniformly distributed on the disc 27 along the circumferential direction, the angle adjusting and locking device further comprises an extension plate 29 mounted on one side of a U-shaped frame 23, a driving rod 30 is longitudinally and slidably connected to the extension plate 29, the section of the driving rod 30 is rectangular, so that the driving rod can only move along the vertical direction of the extension plate 29, limiting plates 31 are respectively arranged at the front end and the rear end of the driving rod 30, a first spring 32 sleeved outside the driving rod 30 is arranged between the limiting plate 31 at the front end and the extension plate 29, a cylindrical pin 33 matched with the clamping grooves 28 is connected to the limiting plate 31 at the front end, a user can pull the cylindrical pin 33, the first spring 32 is compressed, the cylindrical pin 33 is pulled out from the clamping grooves 28, the rectangular block 24 can freely rotate relative to the U-shaped plate, and once the angle adjusting and locking device reaches a specified position, the cylindrical pin 33 is loosened, and under the action of the first spring 32, the cylindrical pin 33 is inserted into the clamping groove 28, so that the locking effect is realized;

a black cloth structure with adjustable vertical distance is arranged between the iron wire 26 arranged in parallel with the cylindrical tube 25 and the cylindrical tube 25, a black cloth structure with adjustable horizontal distance is arranged between the two groups of iron wires 26 arranged in parallel, the black cloth structure with adjustable interval comprises hook rings 34 hung on the two groups of iron wires 26 arranged in parallel, the iron wire 26 and the cylindrical tube 25 arranged in parallel, a folding black cloth 35 is connected between the hook rings 34 on the two groups of iron wires 26 arranged in parallel, the folding black cloth 35 is connected between the iron wire 26 and the hook rings 34 on the cylindrical tube 25 arranged in parallel, the two groups of black cloths are arranged in a staggered mode, the folding black cloth structure is arranged in the transverse direction and the vertical direction of the rectangular structure formed by the cylindrical tube 25 and the iron wires 26, the structure is similar to a curtain, the folding black cloth structure cannot be too much, and the adjustment range is not large after all.

In the fourth embodiment, on the basis of the third embodiment, the two covering structures 7 at the lower jaw position are detachably provided with lower jaw shielding devices for shielding the lower jaw position of a patient, each lower jaw shielding device comprises two sets of hanging buckles 36, each hanging buckle 36 comprises a connecting block 37, an arc-shaped and unsealed arc-shaped rod 38 is connected to the connecting block 37, a swinging rod 39 matched with the arc-shaped rod 38 to form a circular closed area is elastically connected to the connecting block 37, the end of the swinging rod 39 is connected with a spring arranged in the connecting block 37, so that a detachable hanging buckle 36 structure is formed, the detachable hanging buckle 36 structure is similar to a key buckle structure required to be hung at the waist, the swinging rod can be hung at the corresponding position of the iron wire 26 on the covering structure 7 for shielding, the iron wire 26 is connected between the two sets of connecting blocks 37, the iron wire 26 can be bent in any direction, the lower jaw shielding cloth 41 is hung on the iron wire 26 and can be folded along the iron wire 26, the lower jaw shielding cloth 41 adopts a folding structure similar to a curtain, the material is elastic, a binding rope 40 is sleeved at the lower end of the lower jaw shielding cloth 41, one end of the binding rope 40 is fixed at one end of the shielding cloth, the other end of the binding rope penetrates out of a channel at the lower end of the shielding cloth, the two groups of binding ropes 40 are matched to bind the two groups of shielding plates at the lower jaw position of a patient, the front and back surfaces of the shielding cloth are respectively provided with a primary and secondary paste 42, after the two groups of covering structures 7 of the lower jaw are adjusted, the hanging buckle 36 is hung below the corresponding covering structure 7, then the two groups of lower jaw shielding parts are bonded together through the primary and secondary paste 42, then the shielding cloth is bound at the position of the neck of the patient through the binding rope 40, the specific position of the shielding is adjusted through adjusting the folding shielding cloth, so that the whole covering work is carried out;

the detachable sword process shielding device is detachably arranged on the lowest layer of the covering structure 7 and comprises two groups of hanging buckles 36, each hanging buckle 36 comprises a connecting block 37, an arc-shaped and unsealed arc-shaped rod 38 is connected onto the connecting block 37, a swinging rod 39 matched with the arc-shaped rod 38 to form a circular closed area is elastically connected onto the connecting block 37, the end of the swinging rod 39 is connected with a spring arranged in the connecting block 37, so that the detachable hanging buckle 36 structure is formed, the detachable sword process shielding device and the detachable structure adopt the same detaching structure, an iron wire 26 is connected between the two groups of connecting blocks 37, a sword process shielding cloth 43 in a trapezoidal arrangement is bound on the iron wire 26, a primary and secondary paste 42 is arranged on the sword process shielding cloth 43, and when the neck of a patient and the part of the sword process part are required to be shielded, the hanging buckle 36 is hung on the iron wire 26 of the lowest cladding structure 7 of the patient and then pasted through the snap paste 42.

Fifth embodiment, on the basis of the first embodiment, the ear binding device includes two ear plates 44 respectively mounted on two sets of vertical plates 4, the ear plates 44 are screwed with a vertically disposed screw pin 45, the lower end of the screw pin 45 is rotatably connected with a connecting plate 46, the upper end of the connecting plate 46 is connected with two sets of symmetrically disposed limiting rods 47, the ear plates 44 are provided with matching holes 48 matched with the limiting rods 47, the matching of the two sets of limiting rods 47 and the matching holes 48 realizes that the connecting plate 46 can only perform vertical displacement relative to the ear plates 44, the limiting rods 47 and the matching holes 48 are used for limiting the rotation of the connecting plate 46, so that when the screw pin 45 rotates, the connecting plate 46 can be driven to perform adjustment of the vertical displacement, thereby adjusting the distance between the whole frame and the face of a patient, the lower end of the connecting plate 46 is respectively connected with two sets of elastic plates 49 inclined toward the center direction of the two ear plates 44, the elastic plate 49 can be made of plastic materials, and can be used for adjusting the longitudinal distance through the movement of the frame plate 2, so that the elastic plate is clamped at the two ends of the head of a patient, the buffer cotton 50 is arranged on the inner side of the elastic plate 49, the lower end of the elastic plate 49 is connected with the pull ropes 51, and the two groups of pull ropes 51 play a role in secondary fixation after being bound, so that the frame plate 2 is prevented from being separated due to accidents, and the mask type wearing method can be adopted when an adult cannot easily move in the treatment process;

if the head of the patient frequently shakes or is not matched with the bed 52 during treatment, the frame structure with the ear plates 44 can be locked on the bed 52 by arranging an adjusting and locking device matched with the bed 52, the adjusting and locking device comprises sliding holes 53 which are symmetrically arranged and are formed in the bed 52, a translation plate 54 is connected in the sliding holes 53 in a sliding mode along the width direction of the bed 52, and the effect that the translation plate 54 only moves along the width direction of the bed 52 can be achieved only by arranging groove bodies on two sides of the sliding holes 53 and enabling the translation plate 54 to be matched in the sliding holes in a sliding mode,

the bed body 52 is rotatably connected with a double-threaded lead screw 55 along the width direction, the double-threaded lead screw 55 is respectively in threaded fit with the translation plate 54, the rotating directions of the threads matched with the two groups of double-threaded lead screws 55 and the translation plate 54 are opposite, so that the double-threaded lead screw drives the two groups of translation plates 54 to move towards the directions close to or away from each other in the rotating process to adapt to the size of the face of a user, one side of the translation plate 54 facing one side of the frame plate 2 is rotatably connected with a swing rod 56, the swing rod 56 is locked at the vertical position by a rotary locking device,

the rotary locking device comprises a pin hole 69 formed in one end of the swing rod 56 far away from the ratchet 57, and further comprises a cross pin 70 connected to the lower end of the translation plate 54 in a sliding manner in the width direction of the bed 52, the cross pin 70 is matched with the pin hole 69 to realize rotary locking work on the swing rod 56, the cross pin 70 is in damping sliding fit with the translation plate 54, the swing rod 56 can rotate around a rotation center, a pin hole 69 in the rotary locking device is formed in the other end of the swing rod 56, when the swing rod 56 swings to a vertically upward position, the cross pin 70 can be inserted into the pin hole 69 to limit the swing rod 56 to enable the swing rod 56 to be in the vertically upward position, a rectangular through hole 71 for passing through the swing rod 56 is formed in the bed 52, the arrangement of the through hole 71 can enable a device on the swing rod 39 to swing to be below the bed 52 through the through hole 71 after the cross pin 70 is disengaged from the pin hole 69, thereby not affecting the normal use of the bed body 52;

the upper end of the swing rod 56 is connected with a ratchet 57, the swing rod further comprises a transition block 58 connected to the corresponding ear plate 44, a vertical through rectangular hole 59 is formed in the transition block 58, a containing cavity 60 is formed in the side wall of the rectangular hole 59, two groups of moving plates 61 are vertically connected in the containing cavity 60 in a sliding mode, a fixed shaft is connected between the two groups of moving plates 61, a pawl 62 matched with the ratchet 57 is sleeved outside the fixed shaft, a second spring 63 is connected between the lower end of the moving plate 61 and the inner bottom surface of the containing cavity 60, a third spring 64 is connected between the side walls of the containing cavity 60 at the end part of the pawl 62, an unlocking rope 65 penetrating through the side wall of the containing cavity 60 and extending out of the transition block 58 is connected at the end part of the pawl 62, a pull ring 66 is connected at the end part of the unlocking rope 65, when locking is carried out, the rectangular hole 59 is aligned with the swing rod 56, and then under the matching of the ratchet 57 and the pawl 62, the frame structure can be smoothly placed on the positions of the two groups of swing rods 56 and then smoothly moves downwards relative to the bed body 52, but the frame structure cannot be separated upwards due to the action of the pawl 62, meanwhile, the second spring 63 below the moving plate 61 is used for providing a certain movement allowance for a patient, so that the frame structure is covered on the head of the patient, the frame structure cannot be locked too fast, the patient cannot move, the matching of the pawl 62 and the ratchet 57 cannot be influenced, and when the frame structure needs to be unlocked, the pawl 62 and the ratchet 57 are unlocked only by pulling the pull ring 66, so that the frame structure can be separated from the swing rods 56 smoothly;

the pendulum rod 56 on threaded connection a screw rod 67, screw rod 67 rotate towards one side of frame board 2 and connect a support cotton stick 68 that is used for supporting patient's head, make support cotton stick 68 adjusting position make it support and fix patient's head through revolving screw rod 67 for fixed effect is better, still can not lock too dead simultaneously.

When the invention is used, firstly, the positions of two groups of frame plates 2 are adjusted by screwing the bidirectional screw rod 10 to be matched with the width of the face of a patient, so that the frame structure can be better hung on the face of the patient, then the position of the lower arc plate 5 is adjusted according to the size of the face of the patient in the vertical direction to be attached to the position of the neck of the patient, after the frame structure is adjusted to a specified position, the frame structure is inserted into the limit hole 14 for limiting and locking by screwing the limit pin 15, at the moment, the covering surface on the lower arc plate 5 and the covering structure 7 on the transition plate 3 can be rotated to the face of the patient to be shielded as required, and the vertical position of the connecting column 6 can be adjusted in a detachable way, so that the position of the connecting column 6 on the vertical plate 4 can be adjusted adaptively according to the position of the affected part of the patient, then the covering structure 7 on the upper part rotates again, so as to realize the covering effect, which area needs to be irradiated rotates the covering structure 7 of which area to be irradiated, so as to move the photodynamic to the right above the area to be irradiated, the covering structure 7 can correspondingly rotate to cover the corresponding position of the face of the patient, the covering structure 7 is not only convenient to rotate, but also can be divided into eight different areas on the face of the patient, wherein the forehead part of the face at the position of the transition plate 3 is respectively provided with one area and two areas, the forehead part at the position of the vertical plate 4 is respectively provided with four areas, namely two areas of three and four cheeks at the upper layer, two areas of five and six areas of lips and mandible at the lower layer, and seven areas and eight areas below the lowest neck part, when the adjustment of the transverse width is carried out, the two sides can be completely covered on the position of the hair of the patient, the adjacent area of the covering surface can not have a gap, so the position of the covering surface in the transverse direction and the vertical direction needs to be adjusted, the shading effect of the covering surface in the vertical direction is ensured, the covering device on the connecting column 6 only needs to be rotated when the covering surface needs to be opened, the covering device at other positions continuously keeps the covering surface effect, the size of the covering surface device can be adjusted by bending the iron wire 26 to be in a required rectangular shape, then the hook on the rectangular shape is adjusted, the shielding cloth can smoothly shield the area, the shielding cloth connected in the iron wire 26 is arranged in a double-layer structure shielding cloth structure, the transverse and vertical position adjustment is convenient, then the rotating position of the covering surface structure 7 is locked through the angle adjusting and locking device, the shading structure can be opened at any time under any condition, so the opening is more convenient, the medical staff can not repeatedly stick the shading cloth on the face of the patient, so that serious discomfort is caused, if sweat exists on the face of the patient, the facial mask is more difficult to fix, the covering structure 7 of the facial frame structure can adapt to patients without the size of the face, meanwhile, the fixing is not needed, the covering structure 7 is adopted to press on the face of the patient, the size of an area irradiating light spots is convenient to open and adjust, the practicability is high, and the popularization is suitable;

when the lower jaw and the xiphoid of a patient need to be shielded, the hanging buckle 36 can be hung below the covering structure 7 of the corresponding lower jaw, then the two groups of lower jaw shielding parts are adhered together through the primary-secondary paster 42, then the shielding cloth is bound at the position of the neck of the patient through the binding rope 40, the specific position of the shielding is adjusted through adjusting the folding shielding cloth, so that the comprehensive covering work is carried out, when the neck of the patient and the part of the xiphoid are required to be shielded, the hanging buckle 36 is hung on the iron wire 26 of the lowermost covering structure 7 of the patient, and then the hanging buckle 42 is adhered;

in the process of hanging the frame structure on the head of a patient, the frame structure can be hung on the position of the ears of the head of the patient through the elastic rods, then the frame structure is further locked through the tying ropes 40, the distance between the frame plate 2 and the connecting plate 46 can be adjusted through screwing the screwing and screwing pin 45, so that the distance between the frame structure and the face of the patient becomes adjustable, in the case of the patient which is not controlled and frequently moves around in the treatment process, the swinging rods 56 can be rotated out of the through holes 71 through the rotating and screwing device and then locked on the vertical position, then the distance between the two sets of translation plates 54 is changed through adjusting the double-headed lead screw 55, so that the two sets of rectangular holes 59 are adapted to the positions of the two sets of rectangular holes 59, the two sets of rectangular holes 59 on the frame plate 2 are aligned with the swinging rods 56 to be inserted, at the moment, the frame plate 2 can be smoothly put down, but the frame plate 2 cannot move in the direction due to the action of the pawl 62, can only inject in the current position, realize the effect of locking, can pass through pulling pull ring 66, realize the unblock of pawl 62, can play fine supporting effect to the head of disease through the position of adjusting support cotton stick 68 at the in-process of locking, this structure not only can be to the head wearing work of adult frame plate 2, can also realize the effect to the fine locking of underage children and restriction through the cooperation of pawl 62-ratchet 57, avoid its condition of random disorder to appear at the in-process of treatment, the work load of medical staff has been alleviateed, therefore, the clothes hanger is strong in practicability, the operation is simple, and the clothes hanger is suitable for being popularized and used.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A light-shading device for photodynamic therapy of facial and cervical lentigo comprises a transverse frame (1), wherein two groups of symmetrical and matched frame plates (2) are respectively and transversely connected on the transverse frame (1) in a sliding manner, a transverse distance adjusting device is connected between the two groups of frames and the transverse frame (1) to realize the adjustment of the distance between the two groups of frame plates (2), the frame plates (2) respectively comprise an arc transition plate (3) structure and a vertical plate (4) structure which are in sliding fit with the transverse frame (1), the lower end of the vertical plate (4) is vertically and slidably connected with a lower arc plate (5), the lower arc plate (5) is locked at the vertical position through a locking device connected on the vertical plate (4), the transverse frame (1), the frame plates (2) and the lower arc plate (5) form a facial frame structure matched with a face of a patient, and connecting columns (6) are respectively connected on the transition plate (3) and the lower arc plate (5), the connecting column (6) is connected with a covering structure (7), a plurality of groups of detachable connecting columns (6) are vertically arranged on the vertical plate (4) at intervals, the connecting column (6) is connected with the covering structure (7), the connecting column (6) connected on the vertical plate (4) can be detached on the vertical plate (4), the face of a patient can be shielded by the rotation of the covering structure (7), and the shading work of the patient is realized by the matching of the plurality of groups of covering structures (7);

a hanger binding device is arranged between the two groups of frame plates (2), so that the whole body is hung and bound on the head of a patient.

2. The light-shading device for photodynamic therapy of nevus flammeus on the neck of a face according to claim 1, wherein the lateral distance adjusting device comprises a T-shaped sliding groove (8) formed at the lower end of the cross frame (1), and further comprises a T-shaped sliding block (9) which is in lateral sliding fit with the sliding groove and is arranged at the upper end of the transition plate (3), the T-shaped sliding groove (8) is rotatably connected with a two-way lead screw (10) which is in threaded fit with the two sets of T-shaped sliding blocks (9), and a driving knob (11) is arranged at the end of the two-way lead screw (10).

3. The light-shielding device for photodynamic therapy of nevus flammeus on face and neck according to claim 1, wherein the lower end of the vertical plate (4) is provided with a T-shaped guide groove (12) which is vertically arranged, the upper end of the lower arc plate (5) is connected with a guide rail (13) which is matched with the T-shaped guide groove (12), the locking device comprises a plurality of groups of limiting holes (14) which are formed in the guide rail (13), and the vertical plate (4) is in threaded connection with a limiting pin (15) which is matched with the plurality of groups of limiting holes (14).

4. The light-shading device for photodynamic therapy of nevus flammeus on the neck according to claim 1, wherein the vertical plate (4) is vertically provided with a plurality of groups of round holes (16) matched with the connecting column (6), the inner side wall of each round hole (16) is provided with two groups of slots (17) uniformly distributed along the radial direction, the upper ends of the slots (17) are open, the inner side wall of each round hole (16) is provided with accommodating slots (18) at intervals of ninety degrees with the slots (17), the upper ends of the accommodating slots (18) are closed, a transition slot (19) is connected between the side wall of each slot (17) and the accommodating slot (18) on one side, the starting end of the slot (17) part in which the transition slot (19) is arranged is higher than the starting end of the accommodating slot (18) part in which the transition slot (19) is arranged, and two groups of cylinders (20) with openings at the upper ends are uniformly distributed along the circumference on the connecting column (6) matched with the vertical plate (4), the cylinder (20) in the bayonet lock (21) of vertical sliding fit and transition groove (19) and holding tank (18) complex, bayonet lock (21) and cylinder (20) in be connected with reset spring (22) between the bottom surface to constitute detachable spliced pole (6) structure.

5. The light-shading device for photodynamic therapy of nevus flammeus on face and neck according to claim 1, wherein the light-shading device comprises a U-shaped frame (23) arranged on the connecting column (6), a rectangular block (24) is rotatably connected in the U-shaped frame (23), a cylindrical tube (25) is vertically arranged on the rectangular block (24), a flexible iron wire (26) is connected between two ends of the cylindrical tube (25), a black cloth structure with a changeable shape is arranged in an area enclosed by the iron wire (26) and the cylindrical tube (25), and an angle adjusting and locking device is arranged between the rectangular block (24) and the U-shaped frame (23) and used for adjusting and locking the angle of the rectangular block (24);

angle modulation locking device include coaxial arrangement and rotate epaxial disc (27) at rectangular block (24), disc (27) go up and open along circumference equipartition and have multiunit draw-in groove (28), still including installing extension board (29) in U-shaped frame (23) one side, extension board (29) on longitudinal sliding connection actuating lever (30), actuating lever (30) around both ends be provided with limiting plate (31) respectively, be provided with between limiting plate (31) of front end and extension board (29) and establish first spring (32) outside actuating lever (30) at the cover, be connected with on limiting plate (31) of front end with draw-in groove (28) complex cylindric lock (33).

6. The light shading device for photodynamic therapy of nevus flammeus on face and neck according to claim 5, wherein a black cloth structure with adjustable vertical distance is arranged between the iron wire (26) parallel to the cylindrical tube (25) and the cylindrical tube (25), a black cloth structure with adjustable horizontal distance is arranged between the two groups of iron wires (26) parallel to each other, the black cloth structure with adjustable intermittent distance comprises a folded black cloth (35) hung on the two groups of iron wires (26) parallel to each other, hook rings (34) on the iron wires (26) and the cylindrical tube (25) parallel to each other, the folded black cloth (35) is connected between the hook rings (34) on the two groups of iron wires (26) parallel to each other, the folded black cloth (35) is connected between the iron wires (26) and the hook rings (34) on the cylindrical tube (25) parallel to each other, and the two groups of black cloth are arranged in a staggered manner.

7. The light shielding device for photodynamic therapy of nevus flammeus on face and neck according to claim 6, wherein two sets of covering structures (7) at the position of the lower jaw are detachably provided with lower jaw shielding devices, each lower jaw shielding device comprises two sets of hanging buckles (36), each hanging buckle (36) comprises a connecting block (37), each connecting block (37) is connected with an arc-shaped rod (38) which is not sealed, each connecting block (37) is elastically connected with a swinging rod (39) which is matched with the arc-shaped rod (38) to form a circular closed area, the end of each swinging rod (39) is connected with a spring arranged in the corresponding connecting block (37) so as to form a detachable hanging buckle (36) structure, an iron wire (26) is connected between the two sets of connecting blocks (37), and an elastic lower jaw shielding cloth (41) which can be folded along the direction of the iron wire (26) is hung on the iron wire (26), the lower end of the lower jaw shielding cloth (41) is sleeved with a binding rope (40), the two groups of binding ropes (40) are matched to bind the two groups of shielding plates on the lower jaw of a patient, and the front and back surfaces of the shielding cloth are respectively provided with a primary and secondary plaster (42);

detachable installs the xiphoid process and shelters from the device on clad surface structure (7) of lower floor, xiphoid process shelter from the device and include that two sets of hanging establishes knot (36), hang and establish knot (36) including connecting block (37), connect arc and unsealed arc pole (38) on connecting block (37), elastic connection one goes up swing lever (39) that elastic connection and arc pole (38) cooperation formed circular closed area in connecting block (37), swing lever (39) end connection has the spring of arranging in connecting block (37) to constitute detachable hanging and establish knot (36) structure, be connected with iron wire (26) between two sets of connecting block (37), iron wire (26) go up to tie up and to be trapezoidal setting's the xiphoid process and shelter from cloth (43), xiphoid process shelter from cloth (43) on be provided with primary and secondary subsides (42).

8. The light shielding device for photodynamic therapy of nevus flammeus on face and neck according to claim 1, wherein the hanging lug binding device comprises ear plates (44) respectively mounted on two sets of vertical plates (4), the ear plates (44) are in threaded connection with a vertically arranged screwing pin (45), the lower ends of the screwing pins (45) are rotatably connected with a connecting plate (46), the upper end of the connecting plate (46) is connected with two sets of symmetrically arranged limiting rods (47), the ear plates (44) are provided with matching holes (48) matched with the limiting rods (47), the matching of the two sets of limiting rods and the screwing pin realizes that the connecting plate (46) can only move in the vertical direction relative to the ear plates (44), the lower ends of the connecting plate (46) are respectively connected with two sets of elastic plates (49) inclined towards the central direction of the two ear plates (44), and the inner sides of the elastic plates (49) are provided with buffer cotton (50), the lower end of the elastic plate (49) is connected with a pull rope (51).

9. The light-shielding device for photodynamic therapy of nevus flammeus on the face and neck according to claim 8, further comprising a bed body (52), wherein an adjusting and locking device is cooperatively connected between the bed body (52) and the two sets of ear plates (44) to lock the frame structure with the ear plates (44) on the bed body (52);

the adjusting and locking device comprises sliding holes (53) which are symmetrically arranged on a bed body (52), a translation plate (54) is connected in the sliding holes (53) in a sliding manner along the width direction of the bed body (52), the bed body (52) is connected with a double-threaded lead screw (55) in a rotating manner along the width direction, the double-threaded lead screw (55) is respectively in threaded fit with the translation plate (54), the rotating directions of the threads matched with the two groups of double-threaded lead screws (55) and the translation plate (54) are opposite, one side of the translation plate (54) towards one side of a frame plate (2) is connected with a swing rod (56) in a rotating manner, the swing rod (56) is locked in a vertical position in a rotating and locking device, the upper end of the swing rod (56) is connected with a transition block (58) connected to a corresponding ratchet plate (44), and a vertical through rectangular hole (59) is formed in the transition block (58), the side wall of the rectangular hole (59) is provided with a containing cavity (60), two groups of moving plates (61) are vertically and slidably connected in the containing cavity (60), a fixed shaft is connected between the two groups of moving plates (61), a pawl (62) matched with the ratchet (57) is sleeved outside the fixed shaft, a second spring (63) is connected between the lower end of each moving plate (61) and the inner bottom surface of the containing cavity (60), a third spring (64) is connected between the side walls of the containing cavity (60) at the end part of the pawl (62), the end part of the pawl (62) is connected with an unlocking rope (65) which penetrates through the side wall of the containing cavity (60) and extends out of the transition block (58), and the end part of the unlocking rope (65) is connected with a pull ring (66);

the swing rod (56) is in threaded connection with a screw rod (67), and the screw rod (67) is rotationally connected with a supporting cotton stick (68) for supporting the head of a patient towards one side of the frame plate (2).

10. The light shielding device for photodynamic therapy of nevus flammeus on the neck of a face according to claim 9, wherein the rotation locking device comprises a pin hole (69) formed at one end of the swing rod (56) far away from the ratchet (57), and further comprises a cross pin (70) connected to the lower end of the translation plate (54) in a sliding manner along the width direction of the bed body (52), the cross pin (70) is matched with the pin hole (69) to realize the rotation locking work of the swing rod (56), and the cross pin (70) is in damping sliding fit with the translation plate (54);

the bed body (52) is provided with a rectangular through hole (71) for the swing rod (56) to pass through.

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