Fire needle heating device for thermal therapy

Abstract

The invention relates to the technical field of medical instruments, and discloses a fire needle heating device for thermal therapy, which comprises a gun-type shell, a fire needle pushing mechanism and a ceramic heating element, a rack is mounted on the gun-type shell, a non-magnetic sleeve is mounted on the rack, an electromagnetic heating unit is mounted in the non-magnetic sleeve, and the ceramic heating element is mounted in the non-magnetic sleeve. A stainless steel sleeve containing heat conduction oil is further installed in the non-magnetic sleeve, an annular disc frame is arranged on one side of the non-magnetic sleeve, a plurality of limiting type sleeves are installed on the annular disc frame, limiting type shaft bodies are installed on the limiting type sleeves, positioning sleeves are installed at one ends of the limiting type shaft bodies, and needle bodies are installed in the positioning sleeves. According to the fire needle heating device for thermal therapy, the stainless steel sleeve and heat conduction oil in the stainless steel sleeve are heated through the electromagnetic heating unit, the needle tip end of the needle body is preheated through the stainless steel sleeve and a heat conduction coating on the stainless steel sleeve, the needle body is heated through the ceramic heating element, and therefore in the needle retaining process, the needle tip end of the needle body is heated; and the heating time can be effectively shortened by preheating the plurality of needle bodies.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a fire needle heating device for thermotherapy. Background Art

[0002] Fire needle therapy is an important component of traditional Chinese medicine. It involves rapidly inserting a red-hot needle tip into an acupuncture point to treat illness. The warm stimulation of the fire needle can promote local blood circulation, relieve muscle spasms, and dissipate blood stasis, achieving the purpose of warming the meridians, dispelling cold and dampness. The mechanical stimulation generated by the rapid insertion of the fire needle into the body surface can stimulate the meridian qi, regulate the function of the internal organs, and achieve the effect of treating the disease. During traditional fire needle therapy, the doctor heats the special needle over the flame of an alcohol lamp until it is red, and then quickly inserts it into the acupuncture points and lesions of the human body. The high temperature carried by the needle warms the meridians, dispels cold pathogens, and promotes qi and blood circulation. In order to improve the efficiency of therapeutic treatment, electric fire needle therapy has gradually replaced traditional fire needle therapy. Traditional fire needle therapy relies on alcohol lamp heating, which has unstable temperature (about 400-800℃). The "white" and "red" states need to be judged by the naked eye. Electric fire needle therapy uses ceramic heating elements and accurately controls the temperature to 650℃± (for example, high temperature is needed to soften tissues for tumor treatment). This can avoid the difference in therapeutic effect or burns caused by insufficient or excessive temperature. Therefore, electric fire needle therapy has gradually replaced traditional fire needle therapy. During the specific use of electric fire needle therapy, the temperature is first selected according to the therapeutic lesion. For example, for superficial lesions, the needle needs to be heated to 400-500℃ (the needle tip is slightly red), while for deep pain, the needle needs to be heated to 600-650℃ (the needle tip is white and bright). Then, the electromagnetic propulsion mechanism inside the electric fire needle is used to push the heated needle into the target lesion. The needle insertion method varies according to different lesions. For example, single-point puncture is used for tender points and acupuncture points (such as Ashi points); intensive puncture is used for herpes zoster, joint swelling, etc. In the actual fire needle therapy process, some surface tumors (such as lipomas, tendon sheath cysts, breast hyperplasia nodules, subcutaneous fibromas and other substantial tumors), deep sputum nodules and other lesions will be treated with retained needles. However, during the retained needle therapy process, a single treatment usually requires multiple retained needles (such as treating tumors in different areas), and then medical staff have to frequently insert the needle body into the electric fire needle, and the inserted needle body needs to be reheated, which wastes a lot of time on the reheating of the needle body, affecting the efficiency of fire needle therapy. For this reason, we propose a fire needle heating device for heat therapy. Summary of the Invention

[0003] The object of the present invention is to provide a fire needle heating device for thermotherapy to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: a fire needle heating device for hyperthermia, comprising a gun-type housing, a fire needle pushing mechanism mounted at one end of the gun-type housing, and a ceramic heating element mounted at the other end of the gun-type housing; a frame mounted on the gun-type housing and fixed to the gun-type housing by screws; a non-magnetic sleeve fixedly mounted on the frame; an electromagnetic heating unit mounted within the non-magnetic sleeve; a stainless steel sleeve located within the electromagnetic heating unit further mounted within the non-magnetic sleeve; wherein the stainless steel sleeve contains heat transfer oil; An annular disc rack is also provided on one side of the non-magnetic sleeve, and a plurality of limiting sleeves are fixedly installed on the annular disc rack, and a connecting unit is provided between the annular disc rack and the non-magnetic sleeve, each limiting sleeve is installed with a limiting shaft body which is slidably connected to its inner wall, and a positioning sleeve is also fixedly installed on one end of the limiting shaft body, a needle body is installed inside each positioning sleeve, and the needle tip of the needle body is in contact with the surface of the stainless steel sleeve, and the electromagnetic heating unit is energized to rapidly heat up the stainless steel sleeve and the heat transfer oil inside it, so that the needle tip of the needle body is in a preheating state, and the end of each limiting shaft body away from the positioning sleeve is located on the motion trajectory of the output end of the fire needle pushing mechanism, and a rotating unit for driving the annular disc rack to directional rotate is also provided on the annular disc rack.

[0005] Preferably, each needle body is installed with an annular iron sheet, and a steel slider is provided below the positioning sleeve, and a spring is connected between the steel slider and the positioning sleeve. A disc magnet is also embedded in the steel slider, and the disc magnet produces an attractive force on the annular iron sheet, and the disc magnet and the annular iron sheet are in contact. A through hole is also provided on the non-magnetic sleeve, and the axis of the through hole coincides with the center line of the ceramic heating element.

[0006] Preferably, the connecting unit includes a non-magnetic shaft body fixedly mounted on a non-magnetic sleeve, and an inlaid sleeve rotatably connected to its inner wall is mounted on one end of the non-magnetic shaft body, and a fixed shaft body is mounted on the annular disk frame, wherein the fixed shaft body and the inlaid sleeve are fixedly connected by screws, and a non-magnetic plate frame is also fixedly mounted on the non-magnetic shaft body, and the non-magnetic plate frame is close to the through hole.

[0007] Preferably, a cylindrical magnet is fixedly mounted on the end of the non-magnetic plate frame, and a bar iron block is fixedly mounted on each steel slider. When the center line of the steel slider coincides with the axis of the through hole, the bar iron block on the steel slider is located directly below the cylindrical magnet, and the cylindrical magnet generates a repulsive force on the bar iron block located directly below it, so that the steel slider drives the needle body to move into the interior of the ceramic heating element through the disc magnet, and the needle tip of the needle body is heated inside the ceramic heating element.

[0008] Preferably, a baffle is fixedly mounted on the non-magnetic plate frame, and the baffle is located on one side of the non-magnetic sleeve and on the movement trajectory of the bar iron block, wherein a second spring is connected between the limiting shaft and the limiting sleeve.

[0009] Preferably, the rotating unit includes a sliding shaft, and the sliding shaft is slidingly connected to the annular disk frame and the inner wall of the fixed shaft, wherein a cavity is opened inside the non-magnetic shaft, wherein one end of the sliding shaft is located in the cavity, and the other end is located on one side of the annular disk frame, and a spring three is arranged between the sliding shaft and the annular disk frame, and the spring three is set on the sliding shaft, and a telescopic shaft is also symmetrically installed on the end of the sliding shaft located in the cavity, and a ball is embedded in the end of the telescopic shaft.

[0010] Preferably, the inner wall of the cavity is provided with a plurality of slots, each of which is connected by an arc-shaped slot body, the end of the telescopic shaft body slides within the slot and the arc-shaped slot body, a guide plate frame is fixedly installed at one of the connection points between the arc-shaped slot body and the slot, and one side of the guide plate frame is an inclined surface and the other side is a right-angle surface.

[0011] Preferably, an action panel is fixedly installed on the output end of the fire needle pushing mechanism, and a force-applying shaft is also fixedly installed on the action panel. When the center line of the limiting shaft coincides with the axis of the through hole, the end of the limiting shaft is located on the motion trajectory of the action panel, and one end of the sliding shaft is located on the motion trajectory of the force-applying shaft.

[0012] Preferably, multiple areas on the surface of the stainless steel sleeve are coated with a thermal conductive coating, and the needle tip of the needle body is preheated at the thermal conductive coating.

[0013] Preferably, the positioning sleeve, the steel slider and the inner wall of the disc magnet do not contact the outer wall of the needle body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes an electromagnetic heating unit to heat the stainless steel sleeve and the heat-conducting oil therein, utilizes the stainless steel sleeve and the heat-conducting coating thereon to preheat the needle tip of the needle body, and then uses a ceramic heating element to supplement the temperature of the needle body. Thus, during the needle retention process, the preheating of multiple needle bodies can effectively shorten the heating time. Under the action of the annular disc rack and the limiting sleeve, the limiting shaft can drive the needle body to adjust its angle through the positioning sleeve, so that during the needle retention treatment process, medical staff do not need to frequently insert the needle body, thereby improving work efficiency. The present invention can effectively switch between puncture treatment and retained needle treatment through the movement distance of the needle body, and the disc magnet can be separated from the annular iron sheet by the baffle, and the sliding shaft can be limited in movement within the annular disc frame and the fixed shaft by utilizing the force-applying shaft. The telescopic shaft on the sliding shaft can rotate the annular disc frame under the action of the slot, the arc-shaped slot and the guide plate frame, and the limiting sleeve can drive the limiting shaft and the positioning sleeve to rotate synchronously, thereby enabling the needle body to be automatically switched, so that medical staff can perform retained needle treatment on the patient's target lesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the gun-type housing of the present invention; Figure 3 This is a schematic diagram of the separation of the gun-type housing, end cover, rear cover and grip structure of the present invention; Figure 4 This is a schematic diagram of the frame structure of the present invention; Figure 5 This is a schematic diagram of the needle body, positioning sleeve and steel slider structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the non-magnetic sleeve of the present invention; Figure 7 This is a schematic diagram of the structure of the electromagnetic heating unit and the stainless steel sleeve of the present invention; Figure 8 This is a schematic diagram of the connecting unit structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the non-magnetic shaft body of the present invention; Figure 10 This is a schematic diagram of the slot and arc-shaped slot structure of the present invention; Figure 11 This is a schematic diagram of the annular disc rack and the sliding shaft structure of the present invention; Figure 12 It is a schematic diagram of the structure of the action panel, the force-applying shaft, the limiting shaft and the sliding shaft of the present invention.

[0016] In the figure: 1. Gun-type housing; 11. End cover; 12. Back cover; 2. Fire needle pushing mechanism; 21. Action panel; 22. Force-applying shaft; 3. Ceramic heating element; 4. Rack; 41. Non-magnetic sleeve; 42. Electromagnetic heating unit; 43. Stainless steel sleeve; 431. Thermal conductive coating; 44. Through hole; 45. Sealing ball; 451. Spring member; 5. Annular disc rack; 51. Limiting sleeve; 52. Limiting shaft; 53. Positioning sleeve; 54. Steel slider; 541. Disc magnet Iron; 542, iron bar; 55, spring one; 56, spring two; 6, connecting unit; 61, non-magnetic shaft; 611, cavity; 612, slot; 613, arc-shaped slot; 614, guide plate frame; 62, inlaid sleeve; 63, fixed shaft; 64, non-magnetic plate frame; 65, cylindrical magnet; 66, baffle; 7, needle body; 71, annular iron sheet; 8, rotating unit; 81, sliding shaft; 82, spring three; 83, telescopic shaft; 9, handle; 91, button. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-12 The present invention provides a technical solution: a fire needle heating device for hyperthermia. The present invention makes corresponding improvements to the technical problems in the background technology, and combines the attached Figure 1 and attached Figure 2 As shown, it includes a gun-type housing 1, a back cover 12 connected to one end of the gun-type housing 1 by a thread, and a fire needle pushing mechanism 2 is installed inside the back cover 12, that is, the fire needle pushing mechanism 2 is installed inside the gun-type housing 1, and an end cover 11 is threadedly connected to the other end of the gun-type housing 1, and a ceramic heating element 3 is installed inside the end cover 11, that is, the ceramic heating element 3 is installed inside the gun-type housing 1, and a handle 9 is installed on the gun-type housing 1, and a button 91 is installed on the handle 9, which is used to control the fire needle pushing mechanism 2 to work. In the prior art, the ceramic heating element 3 heats the fire needle (that is, the needle body 7 described below). After heating to the specified temperature, the button 91 is pressed, and the fire needle pushing mechanism 2 is used to push the fire needle into the target lesion. Since electric fire needle therapy is a prior art, the existing elements involved are not described in detail in this invention.

[0019] The gun-type housing 1 is provided with a frame 4 fixed to the gun-type housing 1 by screws, a non-magnetic sleeve 41 is fixedly installed on the frame 4, and an electromagnetic heating unit 42 is installed inside the non-magnetic sleeve 41, and a stainless steel sleeve 43 located inside the electromagnetic heating unit 42 is also installed inside the non-magnetic sleeve 41, wherein the stainless steel sleeve 43 is filled with heat transfer oil. It should be noted that the electromagnetic heating unit 42 is an energy conversion technology based on the principle of electromagnetic induction, which induces eddy currents in the conductor through an alternating magnetic field, and then uses the resistance characteristics of the material to convert electrical energy into thermal energy. When high-frequency alternating current passes through the induction coil, a high-speed changing alternating magnetic field is generated around the coil, and then the stainless steel sleeve 43 inside it will induce a closed circular current (i.e. eddy current) due to the change in magnetic flux. When the eddy current flows inside the stainless steel sleeve 43, Joule heat is generated due to the resistance characteristics of the stainless steel sleeve 43 itself. Combined with the attached Figure 8 As shown, a plurality of sealing balls 45 are also installed on the stainless steel sleeve 43, and a spring member 451 is connected between the sealing ball 45 and the inner wall of the stainless steel sleeve 43. When the stainless steel sleeve 43 and the heat-conducting oil therein are heated, the temperature of the heat-conducting oil in the stainless steel sleeve 43 rises, and the sealing ball 45 serves to relieve pressure. A through hole 44 is also provided on the non-magnetic sleeve 41, and the axis of the through hole 44 coincides with the center line of the ceramic heating element 3. An annular disc rack 5 is also provided on one side of the non-magnetic sleeve 41, and a plurality of limiting sleeves 51 are fixedly installed on the annular disc rack 5, and a connecting unit 6 is provided between the annular disc rack 5 and the non-magnetic sleeve 41.

[0020] Furthermore, the connecting unit 6 includes a non-magnetic shaft body 61 fixedly mounted on the non-magnetic sleeve 41, and an inlaid sleeve 62 rotatably connected to its inner wall is mounted on one end of the non-magnetic shaft body 61, and a fixed shaft body 63 is mounted on the annular disk frame 5, wherein the fixed shaft body 63 and the inlaid sleeve 62 are fixedly connected by screws, and a non-magnetic plate frame 64 is also fixedly mounted on the non-magnetic shaft body 61, and the non-magnetic plate frame 64 is close to the through hole 44.

[0021] Each limiting sleeve 51 is equipped with a limiting shaft 52 that is slidably connected to its inner wall, and a positioning sleeve 53 is fixedly installed at one end of the limiting shaft 52, and a steel slider 54 is provided below the positioning sleeve 53, and a guide shaft is connected between the steel slider 54 and the positioning sleeve 53, and a spring 55 is connected between the steel slider 54 and the positioning sleeve 53, wherein a disc magnet 541 is embedded on the steel slider 54, and a needle body 7 is installed inside each positioning sleeve 53, and an annular iron sheet 71 is installed on the needle body 7, and the disc magnet 541 generates an attractive force on the annular iron sheet 71, and the disc magnet 541 is in contact with the annular iron sheet 71, and the needle tip of the needle body 7 is in contact with the surface of the stainless steel sleeve 43, wherein multiple areas on the surface of the stainless steel sleeve 43 are coated with a thermal conductive coating 431, and the needle tip of the needle body 7 is preheated at the thermal conductive coating 431. The electromagnetic heating unit 42 is energized to cause the stainless steel sleeve 43 and the thermal oil inside it to heat up rapidly, so that the needle tip of the needle body 7 is in a preheated state, and the end of each limiting shaft 52 away from the positioning sleeve 53 is located on the motion trajectory of the output end of the fire needle pushing mechanism 2, and a rotating unit 8 for driving the annular disc rack 5 to directional rotate is also provided on the annular disc rack 5.

[0022] Furthermore, the inner walls of the positioning sleeve 53, the steel slider 54 and the disc magnet 541 do not contact the outer wall of the needle body 7. During the specific installation process, the needle body 7 is inserted into the positioning sleeve 53, and the annular iron sheet 71 on the needle body 7 will contact the disc magnet 541 on the steel slider 54. At this time, the disc magnet 541 generates an attractive force on the annular iron sheet 71, wherein the center line of the output end of the fire needle pushing mechanism 2 coincides with the axis of the through hole 44, and a cylindrical magnet 65 is also fixedly installed at the end of the non-magnetic plate frame 64. A bar iron block 542 is fixedly installed on each steel slider 54. When the center line of the steel slider 54 coincides with the axis of the through hole 44, a cylindrical magnet 65 is fixedly installed at the end of the non-magnetic plate frame 64. When the axes of the through holes 44 coincide, the bar iron block 542 on the steel slider 54 is located directly below the cylindrical magnet 65, and the cylindrical magnet 65 produces a repulsive force on the bar iron block 542 located directly below it, so that the steel slider 54 drives the needle body 7 to move toward the inside of the ceramic heating element 3 through the disc magnet 541, and the needle tip of the needle body 7 is heated in the ceramic heating element 3. A baffle 66 is also fixedly installed on the non-magnetic plate frame 64, and the baffle 66 is located on one side of the non-magnetic sleeve 41 and on the movement trajectory of the bar iron block 542, wherein a spring 2 56 is connected between the limiting shaft 52 and the limiting sleeve 51.

[0023] Furthermore, the rotating unit 8 includes a sliding shaft 81, and the sliding shaft 81 is slidably connected to the inner wall of the annular disc frame 5 and the fixed shaft 63, wherein a cavity 611 is opened inside the non-magnetic shaft 61, wherein one end of the sliding shaft 81 is located in the cavity 611, and the other end is located on one side of the annular disc frame 5, and a spring 82 is connected between the sliding shaft 81 and the annular disc frame 5, and a telescopic shaft 83 is symmetrically installed at one end of the sliding shaft 81 located in the cavity 611, and a ball is embedded in the end of the telescopic shaft 83, and the output end of the fire needle pushing mechanism 2 is fixedly installed with an action panel 21, and a fixedly installed on the action panel 21 There is a force-applying shaft 22. When the center line of the limiting shaft 52 coincides with the axis of the through hole 44, the end of the limiting shaft 52 is located on the motion trajectory of the action panel 21, and one end of the sliding shaft 81 is located on the motion trajectory of the force-applying shaft 22. The inner wall of the cavity 611 is provided with a plurality of slots 612, and each slot 612 is connected by an arc-shaped slot 613. The end of the telescopic shaft 83 slides in the slot 612 and the arc-shaped slot 613. A guide plate frame 614 is fixedly installed at one of the connection points between the arc-shaped slot 613 and the slot 612, and one side of the guide plate frame 614 is an inclined surface and the other side is a right-angle surface.

[0024] In actual application, medical staff need to select a physical therapy method according to the patient's lesion. If the patient's target lesion is suitable for puncture treatment, that is, the needle body 7 is heated to a high temperature and inserted and withdrawn quickly, then the medical staff only needs to install a single needle body 7. When retaining the needle is required, multiple needle bodies 7 need to be installed. When installing the needle body 7, the medical staff can remove the screws used to fix the frame 4 and the gun-type housing 1 before physical therapy, remove the frame 4 from the gun-type housing 1, and then remove the screws between the embedded sleeve 62 and the fixed shaft 63. At this time, the fixed shaft 63 can drive the annular disc frame 5 and The non-magnetic shaft 61 is separated, and then the medical staff inserts the non-needle tip of the needle body 7 into the positioning sleeve 53. At this time, the annular iron sheet 71 on the needle body 7 will contact the disc magnet 541. Under the action of the disc magnet 541, the annular iron sheet 71 is adsorbed. The number of needle bodies 7 to be installed is selected according to the treatment method. When the patient's target lesion is treated by puncture, one needle body 7 is installed. When the needle needs to be retained, multiple needle bodies 7 are installed. After the installation is completed, the fixed shaft 63 is connected to the embedded sleeve 62 with screws, and then the frame 4 is placed into the gun-type housing 1 and fixed with screws.

[0025] The insertion depth of the needle body 7 using the retained needle treatment method is greater than the insertion depth of the puncture treatment method. If the patient is treated with puncture, there is no need to energize the electromagnetic heating unit 42. At this time, the axis of the needle body 7 coincides with the center line of the through hole 44, and the bar iron block 542 on the steel slider 54 is located directly below the cylindrical magnet 65, and the cylindrical magnet 65 produces a repulsive force on the bar iron block 542 located directly below it, so that the steel slider 54 drives the needle body 7 to move into the ceramic heating element 3 through the disc magnet 541, and the needle tip of the needle body 7 is heated in the ceramic heating element 3. Then the medical staff presses the button 91, so that the output end of the fire needle pushing mechanism 2 is used to limit the position through the action panel 21. The shaft 52 applies a force, and the limiting shaft 52 drives the steel slider 54 and the needle body 7 to move rapidly through the positioning sleeve 53, so that the needle body 7 heated to a high temperature can quickly penetrate into the patient's target lesion. Since the insertion depth of the puncture treatment is less than the insertion depth of the retained needle treatment, when the needle body 7 is inserted into the target lesion, the bar iron block 542 on the steel slider 54 does not move to the baffle 66, that is, when the puncture treatment is performed, the annular iron sheet 71 and the disc magnet 541 are always in contact. When the fire needle pushing mechanism 2 is quickly reset, under the action of the disc magnet 541, the needle body 7 can quickly leave the patient's body through the annular iron sheet 71, thereby performing physical therapy on the patient.

[0026] When the patient needs to undergo retained needle treatment, multiple needle bodies 7 need to be installed. It should be noted that the initial installation positions of the multiple needle bodies 7 correspond to the thermal conductive coating 431 on the surface of the stainless steel sleeve 43, that is, the needle tip of the needle body 7 contacts the thermal conductive coating 431, and the electromagnetic heating unit 42 is energized to quickly heat the stainless steel sleeve 43 and the thermal conductive oil inside it. After heating to the preheating temperature, it should be noted that the heating temperature required for treating different lesions is different. In the present invention, taking preheating to 200°C as an example, when the electromagnetic heating unit 42 heats the stainless steel sleeve 43 After the heat-conducting oil inside it is heated to 200°C, the power is turned off, and the stainless steel sleeve 43 and the heat-conducting coating 431 thereon are used to preheat the needle tip of the needle body 7. The heat-conducting oil can ensure that the temperature of the surface of the stainless steel sleeve 43 will not drop quickly. Continuing from the above, when the axis of one of the needle bodies 7 coincides with the center line of the through hole 44, the medical staff presses the button 91, so that the output end of the fire needle pushing mechanism 2 applies a force to the limiting shaft 52 through the action panel 21, and the limiting shaft 52 will drive the steel slider 54 and the needle body 7 through the positioning sleeve 53. The needle 7 heated to a high temperature moves rapidly, so that the needle body 7 quickly penetrates into the patient's target lesion. Since the insertion depth of the retained needle treatment is greater than the insertion depth of the puncture treatment, the bar iron block 542 on the steel slider 54 will contact the baffle 66 during this process. Under the action of the baffle 66, the movement of the bar iron block 542 is hindered. It should be noted that a buffer pad is installed at the bottom of the bar iron block 542 (i.e., the contact point with the baffle 66); thereby, the movement of the bar iron block 542 is hindered, and the disc magnet 541 is separated from the annular iron piece 71. When the needle pushing mechanism 2 is quickly reset, the positioning sleeve 53 drives the needle body 7 to continue to move, thereby inserting the needle body 7 into the patient's body. When the fire needle pushing mechanism 2 is quickly reset, the positioning sleeve 53, the steel slider 54 and the inner wall of the disc magnet 541 are not in contact with the outer wall of the needle body 7, and the disc magnet 541 is separated from the annular iron sheet 71 at this time, so that the needle body 7 will remain at the target lesion of the patient. During the rapid reset process of the fire needle pushing mechanism 2, the limiting shaft 52 will be reset under the action of the second spring 56, and the steel slider 54 will be reset under the action of the first spring 55. Continuing from the above, during the needle retention treatment, when the bar iron block 542 on the steel slider 54 contacts the baffle 66, the force-applying shaft 22 on the output end of the fire needle pushing mechanism 2 will apply a force to the sliding shaft 81, thereby causing the sliding shaft 81 to perform a directional movement and squeeze the spring three 82. During the limited sliding of the sliding shaft 81 on the inner wall of the annular disc frame 5 and the fixed shaft 63, the telescopic shaft 83 thereon will move along the trajectory of the slot 612 and eventually pass through the inclined surface of the guide plate frame 614. When the output end of the fire needle pushing mechanism 2 is quickly reset, the sliding shaft 81 will be reset under the action of the spring three 82. During the resetting process of the sliding shaft 81, the telescopic shaft 83 thereon will perform a resetting movement. The end of the telescopic shaft 83 passes through the right-angled surface of the guide plate frame 614 during the resetting process. Under the action of the right-angled surface of the guide plate frame 614, the telescopic shaft 83 moves along the trajectory of the arc-shaped groove 613, thereby causing the sliding shaft 81 to rotate, and the angle of each rotation is constant. During the rotation process, the sliding shaft 81 will drive the annular disc frame 5 and the fixed shaft 63 to rotate synchronously. Since the fixed shaft 63 is fixedly connected to the embedded sleeve 62 by screws, the embedded sleeve 62 will rotate in the non-magnetic shaft 61. During the rotation of the annular disc rack 5, the needle body 7 originally inserted into the patient's target lesion and its corresponding limiting sleeve 51 will leave the original position, and the limiting sleeve 51 corresponding to the needle body 7 will rotate to coincide with the axis of the through hole 44. When the limiting sleeve 51 with the needle body 7 rotates to coincide with the axis of the through hole 44, the steel slider 54 corresponding to the lower part of the limiting sleeve 51 will be located directly below the cylindrical magnet 65, that is, the bar iron block 542 on the steel slider 54 is located directly below the cylindrical magnet 65, and the cylindrical magnet 65 generates a repulsive force on the bar iron block 542 located directly below it, causing the steel slider 54 to The needle body 7 is driven to move toward the inside of the ceramic heating element 3 by the disc magnet 541, so that the needle tip of the needle body 7 is quickly heated in the ceramic heating element 3, thereby shortening the heating time of the needle body 7. When the target temperature is reached, the fire needle pushing mechanism 2 is started, so that the needle body 7 is inserted into the target lesion of the patient under the action of the action panel 21. When the needle body 7 remains in the target lesion of the patient, the fire needle pushing mechanism 2 is reset to repeat the above operation, that is, during the resetting process of the fire needle pushing mechanism 2, the preheated needle body 7 is switched and heated at the ceramic heating element 3. Therefore, the structural design of the present invention can effectively improve the working efficiency of the retained needle treatment.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fire needle heating device for hyperthermia, comprising a gun-type housing (1), a fire needle pushing mechanism (2) mounted at one end of the gun-type housing (1), and a ceramic heating element (3) mounted at the other end of the gun-type housing (1), characterized in that: The gun-type housing (1) is provided with a frame (4) fixed to the gun-type housing (1) by screws, a non-magnetic sleeve (41) is fixedly installed on the frame (4), an electromagnetic heating unit (42) is installed inside the non-magnetic sleeve (41), and a stainless steel sleeve (43) located inside the electromagnetic heating unit (42) is also installed inside the non-magnetic sleeve (41), wherein the stainless steel sleeve (43) contains heat transfer oil; An annular disc rack (5) is further provided on one side of the non-magnetic sleeve (41), and a plurality of limiting sleeves (51) are fixedly mounted on the annular disc rack (5), and a connecting unit (6) is provided between the annular disc rack (5) and the non-magnetic sleeve (41), each limiting sleeve (51) is provided with a limiting shaft body (52) slidably connected to its inner wall, and a positioning sleeve (53) is further fixedly mounted on one end of the limiting shaft body (52), and a needle body (7) is installed inside each positioning sleeve (53). The needle tip of the needle body (7) contacts the surface of the stainless steel sleeve (43), and the electromagnetic heating unit (42) is energized to rapidly heat the stainless steel sleeve (43) and the heat-conducting oil therein, so that the needle tip of the needle body (7) is in a preheated state. The end of each limiting shaft (52) away from the positioning sleeve (53) is located on the motion trajectory of the output end of the fire needle pushing mechanism (2), and a rotating unit (8) for driving the annular disc rack (5) to rotate in a directional manner is also provided on the annular disc rack (5).

2. The fire needle heating device for hyperthermia according to claim 1, characterized in that: An annular iron sheet (71) is mounted on each needle body (7), and a steel slider (54) is provided below the positioning sleeve (53), and a spring (55) is connected between the steel slider (54) and the positioning sleeve (53). A disc magnet (541) is also embedded in the steel slider (54), and the disc magnet (541) generates an attractive force on the annular iron sheet (71), and the disc magnet (541) and the annular iron sheet (71) are in contact. A through hole (44) is also provided on the non-magnetic sleeve (41), and the axis of the through hole (44) coincides with the center line of the ceramic heating element (3).

3. The fire needle heating device for hyperthermia according to claim 2, characterized in that: The connecting unit (6) includes a non-magnetic shaft body (61) fixedly mounted on the non-magnetic sleeve (41), and an inlaid sleeve (62) rotatably connected to the inner wall of the non-magnetic shaft body (61) is mounted on one end thereof, and a fixed shaft body (63) is mounted on the annular disk frame (5), wherein the fixed shaft body (63) and the inlaid sleeve (62) are fixedly connected by screws, wherein a non-magnetic plate frame (64) is also fixedly mounted on the non-magnetic shaft body (61), and the non-magnetic plate frame (64) is close to the through hole (44).

4. The fire needle heating device for hyperthermia according to claim 3, characterized in that: A cylindrical magnet (65) is fixedly mounted on the end of the non-magnetic plate frame (64), and a bar iron block (542) is fixedly mounted on each steel slider (54). When the center line of the steel slider (54) coincides with the axis of the through hole (44), the bar iron block (542) on the steel slider (54) is located directly below the cylindrical magnet (65), and the cylindrical magnet (65) generates a repulsive force on the bar iron block (542) located directly below it, so that the steel slider (54) drives the needle body (7) to move into the interior of the ceramic heating element (3) through the disc magnet (541), and the needle tip of the needle body (7) is heated in the ceramic heating element (3).

5. The fire needle heating device for hyperthermia according to claim 4, characterized in that: A baffle (66) is also fixedly mounted on the non-magnetic plate frame (64), and the baffle (66) is located on one side of the non-magnetic sleeve (41) and on the motion trajectory of the bar iron block (542), wherein a spring 2 (56) is connected between the limiting shaft (52) and the limiting sleeve (51).

6. The fire needle heating device for hyperthermia according to claim 3, characterized in that: The rotating unit (8) includes a sliding shaft (81), and the sliding shaft (81) is slidably connected to the inner wall of the annular disc frame (5) and the fixed shaft (63), wherein a cavity (611) is opened inside the non-magnetic shaft (61), wherein one end of the sliding shaft (81) is located in the cavity (611), and the other end is located on one side of the annular disc frame (5), and a spring three (82) is provided between the sliding shaft (81) and the annular disc frame (5), and the spring three (82) is sleeved on the sliding shaft (81), and a telescopic shaft (83) is symmetrically installed on one end of the sliding shaft (81) located in the cavity (611), and a ball is embedded in the end of the telescopic shaft (83).

7. The fire needle heating device for hyperthermia according to claim 6, characterized in that: The inner wall of the cavity (611) is provided with a plurality of slots (612), each of the slots (612) is connected through an arc-shaped slot body (613), the end of the telescopic shaft (83) is limitedly slidable in the slot (612) and the arc-shaped slot body (613), and a guide plate frame (614) is fixedly installed at one of the connecting points between the arc-shaped slot body (613) and the slot (612), and one side of the guide plate frame (614) is an inclined surface and the other side is a right-angled surface.

8. The fire needle heating device for hyperthermia according to claim 7, characterized in that: An action panel (21) is fixedly mounted on the output end of the fire needle pushing mechanism (2), and a force-applying shaft (22) is also fixedly mounted on the action panel (21). When the center line of the position-limiting shaft (52) coincides with the axis of the through hole (44), the end of the position-limiting shaft (52) is located on the motion trajectory of the action panel (21), and one end of the sliding shaft (81) is located on the motion trajectory of the force-applying shaft (22).

9. The fire needle heating device for hyperthermia according to claim 1, characterized in that: Multiple areas on the surface of the stainless steel sleeve (43) are coated with a heat-conducting coating (431), and the needle tip of the needle body (7) is preheated at the heat-conducting coating (431).

10. The fire needle heating device for hyperthermia according to claim 2, characterized in that: The inner walls of the positioning sleeve (53), the steel slider (54) and the disc magnet (541) do not contact the outer wall of the needle body (7).

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