Light irradiation device and photo-thermal therapeutic apparatus

Abstract

The light irradiation device comprises a lamp tube and a lampshade, the lampshade comprises an inner tube arranged outside the lamp tube in a sleeving mode and an outer tube arranged outside the inner tube in a sleeving mode, the inner tube and the outer tube are spaced from each other and form a flow channel, and the lamp tube and the inner tube are arranged in a spaced mode. According to the invention, the lamp tube is used as a radiation source, and the radiation source is filtered through the liquid in the flow channel, so that required radiation is formed. Compared with a direct light source, the light source of the liquid has the advantages that the wavelength is more concentrated, the generated heat radiation is better controlled, the core temperature of a human body is increased, the injury to the human body is reduced, and the liquid can cool the lamp tube to a certain extent. Due to the fact that the double-layer tube is adopted, liquid circulates in the flow channel between the inner tube and the outer tube and does not make direct contact with the lamp tube, on one hand, safety can be guaranteed, on the other hand, the problem that radiation energy cannot be achieved due to the fact that a large amount of heat is taken away due to direct contact of the liquid and the lamp tube can be solved, and the treatment effect can be guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a light irradiation device and a photothermal therapy apparatus. Background Art

[0002] High temperature can cause cell death. When the temperature rises to a certain temperature, the heat energy begins to damage the cells. The degree of damage to cells by heat energy depends on the temperature and the time of exposure to heat energy. This phenomenon is particularly obvious for tumor cells. Modern thermal therapy equipment uses ultrasound, microwaves, radio frequency and other methods to increase the temperature of a certain part or organ of the human body to achieve a treatment method of killing local tumors. Existing infrared thermal therapy devices mostly use infrared lamps without treatment and directly irradiate the human body, but this method has a great defect, that is, the non-specificity of heat transfer, which can easily cause damage to normal tissues and organs around the tumor. Therefore, the temperature of thermal therapy in actual application cannot be too high, which also restricts the therapeutic effect of thermal therapy.

[0003] In order to solve the above problems, some related technologies have proposed placing the lamp tube in water so that the emitted light can be partially absorbed when passing through the water to obtain the required radiation. Compared with direct light sources, the thermal radiation generated is relatively better controlled and can also reduce damage to normal tissues and organs.

[0004] However, the above solution brings some new problems. For example, since the lamp tube contacts water, on the one hand, the equipment is not safe to use. On the other hand, a large amount of heat generated by the lamp tube will be taken away, resulting in failure to achieve radiation energy, thereby reducing the treatment effect. Summary of the invention

[0005] The embodiments of the present application provide a light irradiation device and a photothermal therapy apparatus to solve the problem in the related art that the lamp tube is placed in water, which is unsafe and the heat generated by the lamp tube will be taken away in large quantities, resulting in insufficient radiation energy and reduced treatment effect.

[0006] In a first aspect, a light irradiation device is provided, comprising:

[0007] Light tubes;

[0008] A lampshade, comprising an inner tube sleeved outside the lamp tube and an outer tube sleeved outside the inner tube, wherein the inner tube and the outer tube are spaced apart from each other to form a flow channel;

[0009] The lamp tube and the inner tube are spaced apart from each other.

[0010] Furthermore, the light irradiation device further comprises a sealing structure, the sealing structure comprises a sealing seat, the sealing seat is provided with a cavity penetrating the outer end surface and the inner end surface of the sealing seat, and the outer end surface and the inner end surface are respectively provided with a first sealing member and a second sealing member;

[0011] The inner tube passes through the inner end surface, and the inner tube end surface of the inner tube is located at a side of the first seal away from the second seal, and the outer tube end surface of the outer tube is located in the cavity between the first seal and the second seal.

[0012] Furthermore, the sealing seat comprises a water inlet and outlet communicated with the cavity, and the water inlet and outlet are located between the first sealing component and the second sealing component.

[0013] Furthermore, the sealing structure further comprises a first pressing plate mounted on the outer end surface of the sealing seat and a second pressing plate mounted on the inner end surface;

[0014] The first pressing plate and the outer end surface together form a first sealing groove for accommodating a first sealing member;

[0015] The second pressing plate and the inner end surface together form a second sealing groove for accommodating the second sealing member.

[0016] Further, the sealing seat also includes a plug installed on the first pressing plate;

[0017] The plug includes a cylindrical portion extending into the cavity, a first gap is defined between the cylindrical portion and the first pressure plate and the first sealing groove, the inner tube extends into the first gap, and the first sealing member is sealingly sleeved on the outer surface of the inner tube.

[0018] Further, a part of the magnetic head at the end of the lamp tube passes through the cylindrical part and extends out of the plug;

[0019] The magnetic head at the end of the lamp tube is clamped on the bracket;

[0020] A heat-conducting column is arranged at the bottom of the bracket, and the bracket and the heat-conducting column are fixed to the reflecting surface of the reflecting cavity through fasteners.

[0021] Furthermore, a step structure extending toward the outer end surface is provided on one side of the inner end surface, so that the size of the cavity gradually decreases from the inner end surface toward the outer end surface at the step structure;

[0022] A plurality of support plates extending toward the inner end surface are provided at the bottom of the step structure, and the end of the outer tube is sleeved and supported outside the plurality of support plates.

[0023] Furthermore, the plurality of support sheets define a circular ring, and the inner diameter of the circular ring is greater than the outer diameter of the inner tube;

[0024] The plurality of support sheets are spaced apart from each other to form a circular ring segment gap, and the circular ring segment gap is connected to the cavity, and further connected to the water inlet and outlet.

[0025] Furthermore, a first mounting groove for mounting a temperature control switch is provided on the outer end surface of the sealing seat;

[0026] And / or, the sealing seat is integrally arranged.

[0027] In a second aspect, a photothermal therapy apparatus is provided, which comprises a light irradiation device as described above.

[0028] The beneficial effects of the technical solution provided by this application include:

[0029] The present application uses the lamp tube as the radiation source, and filters the radiation source through the liquid in the flow channel to form the required radiation. In this way, the wavelength of the light source passing through the liquid is more concentrated than that of the direct light source, and the heat radiation generated is relatively better controlled, which can increase the core temperature of the body while reducing damage to the human body. At the same time, the liquid can also cool the lamp tube to a certain extent.

[0030] Since a double-layer tube is used, the liquid flows in the flow channel between the inner tube and the outer tube and does not directly contact the lamp tube. On the one hand, this can ensure safety. On the other hand, it can also avoid the problem of a large amount of heat being taken away due to direct contact between the liquid and the lamp tube, resulting in the radiation energy not being achieved. Therefore, this application can ensure the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 An exploded diagram of the photothermal therapy device provided in an embodiment of the present application;

[0033] Figure 2 A cross-sectional view of a photothermal therapy device provided in an embodiment of the present application from one viewing angle;

[0034] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0035] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0036] Figure 5 A cross-sectional view of a sealing seat provided in an embodiment of the present application;

[0037] Figure 6 A schematic diagram of a sealing seat provided in an embodiment of the present application from one viewing angle;

[0038] Figure 7 A schematic diagram of a sealing seat provided in another perspective of an embodiment of the present application;

[0039] Figure 8 A schematic diagram of a plug provided in an embodiment of the present application;

[0040] Fig. 9 A schematic diagram of a bracket provided in an embodiment of the present application;

[0041] Fig.10 A cross-sectional view from another perspective of the photothermal therapy device provided in an embodiment of the present application.

[0042] In the figure: 1, lamp tube; 10, magnetic head; 2, sealing structure; 20, sealing seat; 200, cavity; 201, buffer cavity; 202, support plate; 203, first mounting groove; 204, temperature control switch; 205, second sealing groove; 209, first sealing groove; 210, first pressure plate; 211, first sealing member; 220, second pressure plate; 221, second sealing member; 23, water inlet and outlet; 24, faucet; 25, heat insulation pad; 26, outer end surface; 27, inner end surface; 3, lampshade; 30, inner tube; 301, inner tube End face; 31, outer tube; 311, outer tube end face; 4, flow channel; 5, plug; 50, avoidance groove; 51; opening; 52, first abutting flange; 53, second abutting flange; 54, cylindrical part; 6, reflection cavity; 60, bracket; 600, elastic arm; 6000, first arm section; 6001, second arm section; 6002, third arm section; 6003, fourth arm section; 6004, fifth arm section; 601, bottom plate; 61, thermal conductive column; 62, fastener; 620, screw; 621, nut; 63, arc surface. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0044] See also Figure 1 and Figure 2 As shown, an embodiment of the present application provides a light irradiation device, which includes a lamp tube 1 and a lampshade 3; the lampshade 3 includes an inner tube 30 sleeved on the outside of the lamp tube 1 and an outer tube 31 sleeved on the outside of the inner tube 30, and the inner tube 30 and the outer tube 31 are radially spaced from each other and form a flow channel 4.

[0045] The present application uses the lamp tube 1 as a radiation source, and filters the radiation source through the liquid in the flow channel 4 to form the required radiation. In this way, the wavelength of the light source passing through the liquid is more concentrated than that of the direct light source, and the thermal radiation generated is relatively better controlled, which can increase the core temperature of the body while reducing damage to the human body. At the same time, the liquid can also cool the lamp tube to a certain extent.

[0046] Since a double-layer tube is used, the liquid flows in the flow channel between the inner tube and the outer tube and does not directly contact the lamp tube. On the one hand, this can ensure safety. On the other hand, it can also avoid the problem of a large amount of heat being taken away due to direct contact between the liquid and the lamp tube, resulting in the radiation energy not being achieved. Therefore, this application can ensure the treatment effect.

[0047] In this embodiment, the lamp tube 1, the inner tube 30 and the outer tube 31 are coaxially arranged, and the shortest distances from any two points on the inner wall of the outer tube 31 to the surface of the inner tube 30 are equal, so that the thickness of the flow channel 4 is the same at all locations.

[0048] In this embodiment, the outer tube and the inner tube may be made of quartz tubes or tubes made of other transparent materials.

[0049] In this embodiment, the axial cross-section of the inner tube 30 and the outer tube 31 is circular, the wall thickness of the inner tube 30 and the outer tube 31 is uniform, and the flow channel 4 is of equal thickness, so that the light emitted from different positions of the lamp tube 1 can pass through the liquid layer of the same thickness, so that the liquid has consistent processing of light.

[0050] The absorption of light by a solution is related to the color of the solution, the thickness of the liquid layer, the concentration, and the intensity of the incident light. Based on cost and ease of material selection, the liquid is preferably water.

[0051] The lamp tube 1 is assembled in the inner tube 30 so that the two are spaced apart from each other in the radial direction. This has the advantage of preventing the inner tube 30 from being broken due to the heat and deformation of the lamp tube 1 when the two are fitted together.

[0052] See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the light irradiation device further includes a sealing structure 2, which includes a sealing seat 20, the sealing seat 20 is provided with a cavity 200 that passes through the outer end surface 26 and the inner end surface 27 of the sealing seat 20, and the outer end surface 26 and the inner end surface 27 are respectively provided with a first sealing member 211 and a second sealing member 221, and the first sealing member 211 and the second sealing member 221 can be a sealing ring or other commonly used sealing parts; the inner tube 30 passes through the inner end surface 27, and the inner tube end surface 301 of the inner tube 30 is located on the side of the first sealing member 211 away from the second sealing member 221, and the outer tube end surface 311 of the outer tube 31 is located in the cavity 200 between the first sealing member 211 and the second sealing member 221. The sealing seat 20 includes a water inlet and outlet 23 that communicates with the cavity 200, and the water inlet and outlet 23 is located between the first sealing member 211 and the second sealing member 221.

[0053] In this way, the inner tube 30 is bounded by the position of the first seal 211, with the side close to the outer end face 26 being a dry area and the side close to the inner end face 27 being a wet area, so that water from the water inlet and outlet 23 can enter and exit the flow channel 4 between the outer tube 31 and the inner tube 30. The first seal 211 and the second seal 221 seal the flow channel 4 to prevent water leakage.

[0054] See also Figure 5 As shown, it can be seen that a buffer cavity 201 connected with the water inlet and outlet 23 and the cavity 200 is also provided in the sealing seat 20 , and the inner diameter of the buffer cavity 201 is greater than the inner diameter of the cavity 200 .

[0055] When the liquid is injected, the liquid first enters the buffer chamber 201 to be buffered, thereby reducing the impact force on the lampshade 3 , thereby protecting the lampshade 3 , and then enters the flow channel 4 .

[0056] In order to prevent the first sealing member 211 and the second sealing member 221 from moving in the axial direction, see Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the sealing structure 2 also includes a first pressure plate 210 installed on the outer end surface 26 of the sealing seat 20 and a second pressure plate 220 installed on the inner end surface 27. The first pressure plate 210 and the second pressure plate 220 can be fixed to the sealing seat 20 by using common parts such as screws; the first pressure plate 210 and the outer end surface 26 together form a first sealing groove 209 for accommodating the first sealing member 211; the second pressure plate 220 and the inner end surface 27 together form a second sealing groove 205 for accommodating the second sealing member 221.

[0057] See also Figure 1 , Figure 2 and Figure 8As shown, the sealing seat 20 also includes a plug 5 installed on the first pressure plate 210, and the plug 5 includes a cylindrical portion 54 extending into the cavity 200. There is a first gap between the cylindrical portion 54 and the first pressure plate 210 and the first sealing groove 209. The inner tube 30 extends into the first gap, and the first sealing member 211 is sealingly sleeved on the outer surface of the inner tube 30.

[0058] A portion of the magnetic head 10 at the end of the lamp tube 1 passes through the cylindrical portion 54 and extends out of the plug 5, so that the magnetic head 10 at the end of the lamp tube 1 can be snapped onto the bracket 60; a heat-conducting column 61 is provided at the bottom of the bracket 60, and the bracket 60 and the heat-conducting column 61 are fixed to the reflective surface of the reflective cavity 6 by fasteners 62.

[0059] The plug 5 is provided with an avoidance groove 50 matched with the magnetic head 10 of the lamp tube 1 . The magnetic head 10 of the lamp tube 1 is located in the avoidance groove 50 , and one end of the plug 5 is inserted into the inner tube 30 .

[0060] See also Figure 2 As shown, the plug 5 is inserted into the inner tube 30 along the magnetic head 10 .

[0061] As a specific example, see Figure 2 and Figure 8 As shown, the wall surface of the plug 5 in the circumferential direction is provided with an opening 51 for the magnetic head 10 to enter the avoidance groove 50 along the radial direction of the plug 5. In order to prevent the plug 5 from being naturally separated later, the width of the opening 51 is smaller than the width of the avoidance groove 50. When in use, the opening 51 can be properly opened to deform it, so that the plug 5 can enter the avoidance groove 50 through the opening 51. After that, the opening 51 is released and it is restored. The shape of the plug 5 can be adapted to the avoidance groove 50, for example, both are square; see Figure 4 and Figure 8 As shown, a first abutting flange 52 for abutting against the end surface of the inner tube 30 is protruded on one end of the plug 5; a second abutting flange 53 for abutting against the magnetic head 10 is provided on the inner wall of one end of the avoidance groove 50 away from the first abutting flange 52.

[0062] After the plug 5 enters the avoidance groove 50 through the opening 51, the plug 5 is inserted into the inner tube 30 along the magnetic head 10. After being loosened, the first abutting flange 52 of the plug 5 will abut against the end face of the inner tube 30, and the second abutting flange 53 will abut against the magnetic head 10, so that the axial position of the plug 5 and the inner tube 30 in the lamp tube is fixed.

[0063] Recombination Figure 1It can be understood that in the present application, the magnetic head 10, inner tube 30, outer tube 31, sealing seat 20 and plug 5 of the lamp tube 1 are all axially connected, and the inner tube 30, outer tube 31, sealing seat 20 are axially constrained by the assembly action of the plug 5 and the magnetic head 10 of the lamp tube 1, thereby avoiding the risk of axial force on the seal caused by the threaded connection scheme of the sealing seat 20.

[0064] See also Figure 5 , Figure 6 and Figure 7 As shown, one side of the inner end surface 27 is provided with a step structure extending toward the outer end surface 26, so that the size of the cavity 200 gradually decreases from the inner end surface 27 to the outer end surface 26 at the step structure; the bottom of the step structure is provided with a plurality of support sheets 202 extending toward the inner end surface 27, and the end of the outer tube 31 is sleeved and supported outside the plurality of support sheets 202.

[0065] The support sheet 202, in addition to supporting the outer tube 31, has the following benefits: since the support sheet 202 is located in the flow channel 4, the cross-sectional area of ​​the flow channel 4 at its location is smaller than that of other places, and the flow velocity of the water flowing in or out of the water inlet and outlet 23 will be greater, so the bubbles in the flow channel 4 can be effectively brought out, and at the same time, since the flow velocity is accelerated, the heat exchange rate can also be increased.

[0066] The plurality of support sheets 202 define a circular ring, the inner diameter of which is larger than the outer diameter of the inner tube 30; and the plurality of support sheets 202 are spaced apart from each other to form a circular ring segment gap, which is connected to the cavity 200 and further connected to the water inlet and outlet 23. Such a design is intended to ensure that water can flow from the water inlet and outlet 23 into the flow channel 4, or to ensure that water in the flow channel 4 can flow out from the water inlet and outlet 23.

[0067] In some related technologies, the temperature control switch 204 is installed at the bottom of the sealing seat. Since it is installed at the bottom, the temperature control switch 204 is too close to the diffuse reflective tile, and a false alarm occurs due to the increase in the temperature of the diffuse reflective tile. To solve this problem, see Figure 1 and Figure 6 As shown, a first mounting groove 203 for mounting a temperature control switch 204 is provided on the outer end surface 26 of the sealing seat 20 , and further, a heat insulation pad 25 is provided at the bottom of the sealing seat 20 .

[0068] Since the first mounting groove 203 is on the side of the sealing seat 20, the temperature control switch 204 is located on the side of the sealing seat 20 instead of the bottom, and a heat insulation pad 25 is provided to prevent the temperature control switch 204 from being too close to the diffuse reflective tile, thereby preventing false alarms from occurring due to the increase in temperature of the diffuse reflective tile; and the temperature control switch is closer to the liquid in the tube, so the water temperature can be tested more accurately.

[0069] The temperature control switch 204 can monitor the temperature of the sealing seat 20 in real time through the external device of the aviation plug. The sealing seat 20 can be made of steel, which has good thermal conductivity. By measuring its temperature, the water layer temperature can be approximately obtained. The heat insulation pad 25 can be set to reduce or avoid the influence of the reflection of the diffuse reflective tile on the sealing seat 20.

[0070] The water inlet and outlet 23 may be provided with a water nozzle 24 to facilitate the delivery of liquid. The water nozzle 24 may be detachable by threaded connection, snap connection or the like. Figure 1 As shown, the water nozzle 24 passes through the thermal insulation pad 25 and is fixed on the water inlet and outlet 23 .

[0071] The sealing seat 20 in the embodiment of the present application can be configured in a split manner or in an integrated manner.

[0072] For example, as an example, the sealing seat 20 is divided into two parts, and includes an upper base and a lower base, and the upper base and the lower base are arranged up and down and connected.

[0073] For example, see Figure 1 As shown, the sealing seat 20 is an integrated arrangement. Compared with the split type, the integrated type has the advantage that there is no need to add radial sealing gaskets, and the risk of leakage caused by pressing the sealing gaskets up and down and the inconvenience of installing special-shaped gaskets can be avoided.

[0074] Based on the above-mentioned light irradiation device, an embodiment of the present application also provides a photothermal therapy device, which includes a reflection cavity 6 and a light irradiation device, wherein the inner wall of the reflection cavity 6 is a reflection surface for reflecting light; the light irradiation device is located in the reflection cavity 6.

[0075] To improve the efficiency of heat transfer, see Figure 1 , Figure 2 and Fig. 9 As shown, the magnetic head 10 of the lamp tube 1 is arranged on a bracket 60 ; a heat-conducting column 61 is arranged between the bracket 60 and the reflecting surface, and the bracket 60 and the heat-conducting column 61 are fixed to the reflecting surface through a fastener 62 .

[0076] Specifically, see Figure 1 and Figure 4 As shown, the fastener 62 includes a screw 620 and a nut 621 . The screw 620 passes through the bracket 60 , the heat-conducting column 61 and the reflective surface, and is then threaded onto the nut 621 .

[0077] The heat generated by the lamp tube 1 can be conducted to the reflective surface through the magnetic head 10 , the bracket 60 and the heat-conducting column 61 .

[0078] The bracket 60 and the heat-conducting column 61 can both be made of metal.

[0079] In order to realize the installation of the magnetic head 10, see Fig. 9 As shown, the bracket 60 includes a base plate 601 and two elastic arms 600 arranged at both ends of the base plate 601, and the elastic arm 600 includes a first arm segment 6000, a second arm segment 6001 and a third arm segment 6002 connected in sequence from bottom to top; the distance between the third arm segments 6002 of the two elastic arms 600 is greater than the distance between the first arm segments 6000, so that the second arm segment 6001 is arranged tilted to form a receiving table; when installing the magnetic head 10, insert it downward from the top opening of the two third arm segments 6002 between the two third arm segments 6002 until the magnetic head 10 is supported on the second arm segment 6001.

[0080] In order to prevent the magnetic head 10 from moving upward and being separated, for example, from moving upward and being separated from the bracket 60 due to bumps during transportation, see Fig. 9 As shown, the elastic arm 600 further includes a fourth arm segment 6003 disposed on the top of the third arm segment 6002; the distance between the tops of the fourth arm segments 6003 of the two elastic arms 600 is smaller than the distance between the bottoms.

[0081] Since the distance between the tops of the fourth arm segments 6003 of the two elastic arms 600 is smaller than the distance between the bottoms, the bracket 60 has a restraining opening. When the magnetic head 10 is installed, the fourth arm segment 6003 is pried open to deform the restraining opening. After entering between the two third arm segments 6002, the fourth arm segment 6003 is released to reset it. At this time, the size of the magnetic head 10 is smaller than the size of the restraining opening, thereby preventing the magnetic head 10 from moving upward and detaching.

[0082] To improve the convenience of installation, see Fig. 9 As shown, the elastic arm 600 also includes a fifth arm segment 6004 arranged on the top of the fourth arm segment 6003; the distance between the tops of the fifth arm segments 6004 of the two elastic arms 600 is greater than the distance between the bottoms, so that a trumpet-shaped guide opening is formed on the top of the bracket 60. The magnetic head 10 is installed and directly inserted into the guide opening. Under the guiding action of the fifth arm segment 6004, the fourth arm segment 6003 can be easily opened and enter between the two third arm segments 6002.

[0083] The lamp tube 1 is usually installed in a semicircular reflective cavity, which has the disadvantage that the light reflected from the position directly below the lamp tube 1 will be blocked by the lamp tube 1. In order to solve this problem, see Fig.10 As shown, the reflecting surface includes two connected arc surfaces 63, and the connection between the two arc surfaces 63 forms a boundary line, and the lamp tube 1 is parallel to the boundary line and is located directly above the boundary line. In this embodiment, the reflecting surface is formed by connecting two arc surfaces 63, and the lamp tube 1 is parallel to the boundary line and is located directly above the boundary line, so that the problem that the light directly below the lamp tube 1 cannot be reflected can be solved.

[0084] The reflective surface is affixed with a heat-resistant corrugated aluminum foil, which can diffusely reflect light and will not be damaged due to excessive temperature.

[0085] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0086] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0087] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A light irradiation device, characterized in that: It includes: Light tube (1); A lampshade (3) comprising an inner tube (30) sleeved outside the lamp tube (1) and an outer tube (31) sleeved outside the inner tube (30), wherein the inner tube (30) and the outer tube (31) are spaced apart from each other and form a flow channel (4); The lamp tube (1) and the inner tube (30) are arranged at a distance from each other.

2. The light irradiation device according to claim 1, characterized in that: The light irradiation device further comprises a sealing structure (2), the sealing structure (2) comprising a sealing seat (20), the sealing seat (20) being provided with a cavity (200) penetrating an outer end surface (26) and an inner end surface (27) of the sealing seat (20), and a first sealing member (211) and a second sealing member (221) being provided on the outer end surface (26) and the inner end surface (27), respectively; The inner tube (30) passes through the inner end surface (27), and the inner tube end surface (301) of the inner tube (30) is located on a side of the first sealing member (211) away from the second sealing member (221), and the outer tube end surface (311) of the outer tube (31) is located in the cavity (200) between the first sealing member (211) and the second sealing member (221).

3. The light irradiation device according to claim 2, wherein: The sealing seat (20) comprises a water inlet and outlet (23) in communication with the cavity (200), and the water inlet and outlet (23) are located between the first sealing component (211) and the second sealing component (221).

4. The light irradiation device according to claim 2, wherein: The sealing structure (2) further comprises a first pressing plate (210) mounted on the outer end surface (26) of the sealing seat (20) and a second pressing plate (220) mounted on the inner end surface (27); The first pressing plate (210) and the outer end surface (26) together form a first sealing groove (209) for accommodating a first sealing member (211); The second pressing plate (220) and the inner end surface (27) together form a second sealing groove (205) for accommodating the second sealing member (221).

5. The light irradiation device according to claim 4, wherein: The sealing seat (20) further comprises a plug (5) mounted on the first pressing plate (210); The plug (5) includes a cylindrical portion (54) extending into the cavity (200), a first gap is defined between the cylindrical portion (54) and the first pressure plate (210) and the first sealing groove (209), the inner tube (30) extends into the first gap, and the first sealing member (211) is sealingly sleeved on the outer surface of the inner tube (30).

6. The light irradiation device according to claim 5, characterized in that: A portion of the magnetic head (10) at the end of the lamp tube (1) passes through the cylindrical portion (54) and extends out of the plug (5); The magnetic head (10) at the end of the lamp tube (1) is clamped on the bracket (60); A heat-conducting column (61) is provided at the bottom of the bracket (60), and the bracket (60) and the heat-conducting column (61) are fixed to the reflective surface of the reflective cavity (6) via a fastener (62).

7. The light irradiation device according to claim 3, characterized in that: A step structure extending toward the outer end surface (26) is provided on one side of the inner end surface (27), so that the size of the cavity (200) gradually decreases from the inner end surface (27) toward the outer end surface (26) at the step structure; A plurality of support sheets (202) extending toward the inner end surface (27) are provided at the bottom of the step structure, and the end of the outer tube (31) is sleeved and supported outside the plurality of support sheets (202).

8. The light irradiation device according to claim 7, wherein: The plurality of support sheets (202) define a circular ring, wherein the inner diameter of the circular ring is greater than the outer diameter of the inner tube (30); The plurality of support sheets (202) are spaced apart from each other to form a circular ring segment gap, and the circular ring segment gap is connected to the cavity (200), and further connected to the water inlet and outlet (23).

9. The light irradiation device according to claim 2, wherein: A first mounting groove (203) for mounting a temperature control switch (204) is provided on the outer end surface (26) of the sealing seat (20); And / or, the sealing seat (20) is integrally arranged.

10. A photothermal therapy device, characterized in that: It comprises the light irradiation device as claimed in any one of claims 1 to 9.

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