Steam heat detection device of steam ablation equipment

Abstract

The utility model relates to the technical field of steam ablation, in particular to a steam heat detection device of steam ablation equipment, which comprises a condensation tank, a steam conveying component and a detection component, the condensation tank is suitable for accommodating liquid media, the steam conveying component is inserted into the condensation tank, and an air outlet of the steam conveying component is positioned in the liquid media. The detection part is located in the condensation tank and suitable for detecting the temperature of the liquid medium. According to the utility model, an oxygen bomb is not needed, the heat during steam release can be accurately measured, the steam conveying part can convey steam into the condensation tank according to actual requirements, the released steam quantity and release frequency are controllable, and the purpose of short-time continuous test can be realized. The defects that a traditional calorimeter cannot test gas condensation released heat and cannot continuously test are overcome, and the steam released heat of the steam ablation equipment can be quantitatively tested.

Description

Technical Field

[0001] The utility model relates to the technical field of steam ablation, in particular to a steam heat detection device for steam ablation equipment. Background Art

[0002] Thermal steam therapy is an emerging ablative heat method that releases a certain amount of high-temperature water vapor to the lesion area of ​​prostate tissue, transfers the heat energy stored in the water vapor to the tissue area to deform the cell membrane and cause cell death, thus achieving treatment. Therefore, measuring the heat released by thermal steam therapy is an important research direction.

[0003] As a thermal analysis instrument, calorimeter is currently widely used to measure the heat generated by the reaction of substances. The working principle of the calorimeter is to ignite the substance in an oxygen bomb to make the substance burn completely. The water in the sealed inner cylinder absorbs the heat released by the combustion of the substance and the temperature rises. Then the heat released by the combustion of the substance is calculated from the known heat capacity of the system.

[0004] Thermal steam therapy releases water vapor through the steam delivery needle in the steam ablation catheter, but traditional calorimeters can only test the reaction heat of solids or liquids and cannot test the heat released by gas condensation. In addition, the oxygen bomb needs to be removed and cleaned after each test, making continuous testing impossible and the operating procedures complicated. Utility Model Content

[0005] The utility model provides a steam heat detection device and method for steam ablation equipment to solve one of the defects in the prior art. It does not need to use an oxygen bomb, and can accurately measure the heat when steam is released. The steam delivery component can deliver steam to the condensation tank according to actual needs. The amount of steam released and the release frequency are controllable, and the purpose of short-term continuous testing can be achieved. It overcomes the defects of traditional calorimeters that cannot test the heat released by gas condensation and cannot be tested continuously, and can quantitatively test the heat released by steam ablation equipment.

[0006] The utility model provides a steam heat detection device for steam ablation equipment, comprising a condensation tank, a steam delivery component and a detection component. The condensation tank is suitable for accommodating a liquid medium, the steam delivery component is inserted in the condensation tank, and the air outlet of the steam delivery component is located in the liquid medium. The detection component is located in the condensation tank and is suitable for detecting the temperature of the liquid medium.

[0007] According to a steam heat detection device of a steam ablation device provided by the utility model, the detection component includes at least one thermocouple, the thermocouple is inserted in the condensation tank, and the thermocouple and the steam delivery component extend in the same direction in the condensation tank, and the outer wall of the thermocouple is coated with protective glue.

[0008] According to a steam heat detection device for a steam ablation device provided by the utility model, a plurality of the thermocouples are evenly distributed and arranged around the outside of the steam delivery component; and the detection points of the plurality of the thermocouples are sequentially arranged in the liquid medium along the extension direction of the steam delivery component.

[0009] According to the steam heat detection device of the steam ablation equipment provided by the utility model, the steam delivery component includes a delivery needle, and the gas outlet of the delivery needle is located in the middle position of the liquid medium.

[0010] According to a steam heat detection device of a steam ablation device provided by the utility model, the condensation tank includes a tank body and a cover assembly, the tank body includes an inner cylinder and an outer cylinder, the inner cylinder is arranged on the inner side of the outer cylinder, the liquid medium is accommodated inside the inner cylinder, a heat-insulating cavity is formed between the outer cylinder and the inner cylinder, the cover assembly is covered on the opening of the tank body, and the steam delivery component and the detection component are both penetrated through the cover assembly.

[0011] According to a steam heat detection device for a steam ablation device provided by the utility model, the cover assembly includes a sealing cover, and the sealing cover includes a cover body and a flange, the flange is arranged around the outer side of the cover body, and a groove is formed between the inner wall of the flange and the outer wall of the cover body, the opening of the tank body is located in the groove, and the opening of the tank body is threadedly connected to the sealing cover.

[0012] According to a steam heat detection device of a steam ablation device provided by the utility model, the cover body is provided with a first through hole, the steam delivery component and the detection component are both penetrated through the first through hole, and a first sealing member is provided between the cover body and the steam delivery component and the detection component.

[0013] According to a steam heat detection device for a steam ablation device provided by the utility model, the cover assembly also includes a tube body, the tube body is located in the tank body and inserted into the first through hole, the tube body is sleeved on the outside of the detection component, and a second seal is provided between the cover body and the tube body.

[0014] According to a steam heat detection device for a steam ablation device provided by the utility model, the cover assembly also includes a fixing ring and a fixing plate, the fixing ring is surrounded and pressed against the outer wall of the flange, the fixing plate is pressed against the top surface of the sealing cover and the fixing ring, the fixing plate is provided with a second through hole corresponding to the first through hole, and the detection component and the steam delivery component are passed through the second through hole.

[0015] According to the utility model, a steam heat detection device for a steam ablation device also includes a weighing component and a controller. The weighing component is arranged below the condensation tank, suitable for obtaining the weight of the condensation tank and sending the weight signal to the controller. The controller is also suitable for receiving the temperature signal sent by the detection component. The controller obtains the steam heat based on the weight signal and the temperature signal.

[0016] The utility model provides a steam heat detection device for a steam ablation device, a condensation tank as a sealed and heat-insulating container filled with a liquid medium, a conduit of the steam ablation device is connected to the air inlet of a steam conveying component, and an air outlet of the steam conveying component is inserted into the liquid medium of the condensation tank. The steam generated by the steam ablation device enters the steam conveying component through the conduit, then enters the condensation tank through the steam conveying component, and is released into the liquid medium of the condensation tank. The detection component can detect the temperature of the liquid medium in real time, and then detect the temperature change of the liquid medium caused by the condensation of steam in the liquid medium to release heat, thereby combining parameters such as the amount of water in the liquid medium and the amount of steam released, to obtain the heat released by the steam.

[0017] The device of the utility model has a simple structure and is easy to operate. It does not require an oxygen bomb and can accurately measure the heat released by steam. The steam delivery component can deliver steam to the condensation tank according to actual needs. The amount of steam released and the release frequency are controllable, and the purpose of short-term continuous testing can be achieved. The defects of traditional calorimeters that cannot test the heat released by gas condensation and cannot be tested continuously are overcome, and the heat released by steam ablation equipment can be quantitatively tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is one of the structural schematic diagrams of the steam heat detection device of the steam ablation equipment provided in the embodiment of the present invention.

[0020] Figure 2 This is the second structural schematic diagram of the steam heat detection device of the steam ablation equipment provided in the embodiment of the present invention.

[0021] Figure 3 It is a structural schematic diagram of a cover assembly of a steam heat detection device of a steam ablation device provided in an embodiment of the present invention.

[0022] Figure 4This is one of the structural schematic diagrams of the computer component of the steam heat detection device of the steam ablation equipment provided by the embodiment of the present invention.

[0023] Figure 5 This is the second structural schematic diagram of the computer component of the steam heat detection device of the steam ablation equipment provided in the embodiment of the present invention.

[0024] Figure 6 This is one of the flow charts of the steam heat detection method of the steam ablation device provided in an embodiment of the present invention.

[0025] Figure 7 This is the second flow chart of the steam heat detection method of the steam ablation device provided in the embodiment of the present invention.

[0026] Figure 8 This is the third flow chart of the steam heat detection method of the steam ablation device provided in the embodiment of the present invention.

[0027] Fig. 9 This is a temperature change curve of the steam heat detection method of the steam ablation device provided in an embodiment of the present invention.

[0028] Reference numerals:

[0029] 100, condenser; 110, tank body; 111, inner cylinder; 112, outer cylinder; 113, heat insulation cavity; 114, opening; 120, cover assembly; 121, sealing cover; 1211, cover body; 1212, flange; 1213, groove; 1214, first sealing member; 1215, notch; 1216, second sealing member; 122, tube body; 123, fixing ring; 1231, protrusion; 124, fixing plate;

[0030] 200, steam delivery component; 210, delivery needle; 211, air outlet; 212, air inlet;

[0031] 300, detection component; 310, thermocouple; 311, first thermocouple; 312, second thermocouple; 313, third thermocouple;

[0032] 400, liquid medium; 500, weighing component; 600, catheter;

[0033] 710, host; 720, switch; 730, display screen. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1 and Figure 2 As shown, the steam heat detection device of the steam ablation equipment of the embodiment of the utility model includes a condensation tank 100, a steam delivery component 200 and a detection component 300. The condensation tank 100 is suitable for accommodating a liquid medium 400. The steam delivery component 200 is inserted in the condensation tank 100, and the air outlet 211 of the steam delivery component 200 is located in the liquid medium 400. The detection component 300 is suitable for detecting the temperature of the liquid medium 400.

[0036] In the steam heat detection device of the steam ablation device of the embodiment of the utility model, the condensation tank 100 is used as a sealed and insulated container to load the liquid medium 400, the conduit 600 of the steam ablation device is connected with the air inlet 212 of the steam delivery component 200, and the air outlet 211 of the steam delivery component 200 is inserted into the liquid medium 400 of the condensation tank 100. The steam generated by the steam ablation device enters the steam delivery component 200 through the conduit 600, and then enters the condensation tank 100 through the steam delivery component 200 and is released into the liquid medium 400 of the condensation tank 100. The detection component 300 can detect the temperature of the liquid medium 400 in real time, and then detect the temperature change of the liquid medium 400 caused by the condensation of the steam in the liquid medium 400 to release heat, thereby combining the parameters such as the water amount of the liquid medium 400 and the amount of steam released, and the heat released by the steam can be obtained.

[0037] The device of the utility model has a simple structure and is easy to operate. It does not require an oxygen bomb and can accurately measure the heat released by steam. The steam delivery component 200 can deliver steam to the condensation tank 100 according to actual needs. The amount of steam released and the release frequency are controllable, and the purpose of short-term continuous testing can be achieved. The defects of traditional calorimeters that they cannot test the heat released by gas condensation and cannot be tested continuously are overcome, and the heat released by steam in steam ablation equipment can be quantitatively tested.

[0038] It is understandable that the liquid medium 400 can be an aqueous solution, such as purified water. The condensation tank 100 is filled with purified water, and the water vapor transported by the catheter 600 is condensed. Since the specific heat capacity of water is large, it can obviously reflect the heat change in the steam condensation process. Therefore, the detection device of the present invention can be used for water vapor heat detection of steam ablation equipment. For steam of other types of components and corresponding liquid condensation media, the temperature change is greater due to the influence of specific heat capacity and the properties of steam of different components. When the temperature difference between the liquid medium in the condensation tank 100 and the external environment is large, the heat insulation effect of the condensation tank 100 is required to be higher, and it is not feasible.

[0039] According to an embodiment provided by the utility model, the detection component 300 includes at least one thermocouple 310, the thermocouple 310 is inserted in the condensation tank 100, and the thermocouple 310 and the steam delivery component 200 extend in the same direction in the condensation tank 100. In this embodiment, the detection component 300 uses a thermocouple 310, the thermocouple 310 and the steam delivery component 200 are inserted into the condensation tank 100 from the outside, and the detection point of the thermocouple 310 is immersed in the liquid medium 400. When the steam delivery component 200 releases steam into the liquid medium 400, the thermocouple 310 can directly and timely sense the temperature of the liquid medium 400.

[0040] In this embodiment, the detection component 300 uses a T-type thermocouple 310, which has the advantage of fast response speed. It can effectively reduce heat loss when applied to scenarios where the steam condensation test time is short, and solves the problems in the prior art that steam condensation generates little heat and has a short stabilization time, and the traditional calorimeter has a large heat capacity, a long test time, and a large test error.

[0041] In this embodiment, the surface of the thermocouple 310 may be coated with protective glue to prevent oxidation and protect components. In other embodiments, the detection component 300 may also use other waterproof and anti-corrosion temperature sensors.

[0042] According to an embodiment provided by the utility model, a plurality of thermocouples 310 are arranged around the outside of the steam delivery component 200, and the detection points of the plurality of thermocouples 310 are sequentially arranged in the liquid medium 400 along the extension direction of the steam delivery component 200. In this embodiment, the detection component 300 is a plurality of thermocouples 310, and the plurality of thermocouples 310 are arranged around the circumference of the steam delivery component 200, and the extension direction of each thermocouple 310 is the same as the extension direction of the steam delivery component 200. The thermocouples 310 arranged around the steam delivery component 200 can detect the temperature of the liquid medium 400 at different positions around the steam release position, thereby obtaining the heat of multiple positions within the steam release range, and comprehensively obtaining the steam release heat, so that the detection is more reasonable and the detection result is more accurate.

[0043] The direction of the liquid medium 400 from the water surface to the bottom of the water is the vertical direction, and the detection points of multiple thermocouples 310 are arranged in sequence from top to bottom along the vertical direction, that is, the thermocouple 310 can also detect the temperature of the liquid medium 400 in different height directions, thereby ensuring that the detection range of the detection component 300 can not only meet the requirements of various directions in the horizontal direction, but also various heights in the vertical direction, thereby further improving the accuracy of the detection results.

[0044] In this embodiment, the detection component 300 uses a first thermocouple 311, a second thermocouple 312 and a third thermocouple 313, and the first thermocouple 311, the second thermocouple 312 and the third thermocouple 313 are evenly distributed in the circumferential direction of the steam delivery component 200, and the detection points from top to bottom are the first thermocouple 311, the second thermocouple 312 and the third thermocouple 313, respectively, and the gas outlet 211 of the steam delivery component 200 is located between the detection point of the second thermocouple 312 and the detection point of the third thermocouple 313, which not only ensures that the temperature above the steam release position can be detected, but also ensures that the temperature below the steam release position can be detected. In other embodiments, the number of thermocouples 310 can be selected according to actual needs.

[0045] According to an embodiment provided by the utility model, the steam delivery component 200 includes a delivery needle 210, and the air outlet 211 of the delivery needle 210 is located in the middle of the liquid medium 400. In this embodiment, the steam delivery component 200 uses the delivery needle 210, and the thermocouple 310 is surrounded by the outside of the delivery needle 210 and inserted into the condensation tank 100 together with the delivery needle 210, and the insertion position of the delivery needle 210 is fixed, that is, the air outlet 211 of the delivery needle 210 needs to ensure that it is in the middle of the liquid medium 400, neither close to the water surface nor close to the bottom of the water, and ensure that the distance between the air outlet 211 and the inner wall of the condensation tank 100 is uniform and equal within the circumferential range, thereby avoiding the uneven distribution of the liquid medium 400 around the air outlet 211, and the detection component 300 cannot reflect the actual situation of heat when detecting the temperature change of the liquid medium 400, which has an adverse effect on the detection of steam release heat.

[0046] Moreover, the detection device has its own delivery needle 210 combined with the sealing cover 121, so there is no need to insert the delivery needle 210 of the steam ablation device into the condensation tank 100, which can ensure that the detection device itself has no structural disassembly when detection is required, and will not affect the sealing of the condensation tank 100. This solves the problem in the prior art that the delivery needle 210 in the steam ablation catheter 600 needs to be inserted into the calorimeter to release steam, and the oxygen bomb cannot ensure sealing.

[0047] The device for delivering steam to the affected area in the steam ablation equipment is a steam delivery needle. To ensure the test effect, the structure in which the steam delivery component extends into the liquid medium 400 is set as a delivery needle 210 to simulate the gas outlet state of the steam delivery needle, so that the test result is closer to the actual heat release of the steam delivery needle.

[0048] According to an embodiment provided by the utility model, the condensation tank 100 includes a tank body 110 and a cover assembly 120, the tank body 110 includes an inner cylinder 111 and an outer cylinder 112, the inner cylinder 111 is arranged on the inner side of the outer cylinder 112, the interior of the inner cylinder 111 accommodates a liquid medium 400, and a heat-insulating cavity 113 is formed between the outer cylinder 112 and the inner cylinder 111, the cover assembly 120 covers the opening 114 of the tank body 110, and the steam conveying component 200 and the detection component 300 are both penetrated by the cover assembly 120.

[0049] In this embodiment, the condensation tank 100 is composed of a tank body 110 and a cover assembly 120 covering the opening 114 of the tank body 110. The tank body 110 is a heat-insulating container. Pure water is filled into the tank body 110. When the cover assembly 120 seals the opening 114 of the tank body 110, the tank body 110 becomes a sealed heat-insulating container. The inner cylinder 111 is arranged inside the outer cylinder 112. The opening of the inner cylinder 111 is sealed and connected with the opening of the outer cylinder 112 to form the opening 114 of the tank body 110, so that a heat-insulating cavity 113 is enclosed between the inner cylinder 111 and the outer cylinder 112, thereby achieving a heat-insulating effect of the tank body 110. The thermocouple 310 and the delivery needle 210 both pass through the cover assembly 120 and enter the interior of the tank body 110.

[0050] In this embodiment, the heat-insulating cavity 113 is a vacuum cavity, which reduces the heat exchange between the inner cylinder 111 and the environment to play a heat-insulating role. The inner wall of the inner cylinder 111 can also be silver-plated or copper-plated to reduce heat radiation. In other embodiments, the heat-insulating cavity 113 can also be formed by filling the cavity with heat-insulating materials.

[0051] like Figure 3As shown, according to an embodiment provided by the utility model, the cover assembly 120 includes a sealing cover 121, and the sealing cover 121 includes a cover body 1211 and a flange 1212. The flange 1212 is arranged around the outer side of the cover body 1211, and a groove 1213 is formed between the inner wall of the flange 1212 and the outer wall of the cover body 1211. The opening portion 114 of the tank body 110 is located in the groove 1213, and the opening portion 114 of the tank body 110 is threadedly connected to the sealing cover 121. In this embodiment, the sealing cover 121 is composed of a cover body 1211 and a flange 1212 connected around the cover body 1211, and the flange 1212 is located at one end of the cover body 1211. During the installation of the sealing cover 121 and the tank body 110, the bottom end of the cover body 1211 is inserted into the opening 114 of the tank body 110, and then the opening 114 of the tank body 110 enters the groove 1213 surrounded by the top of the cover body 1211 and the flange 1212. By rotating the sealing cover 121, the opening 114 of the tank body 110 can be threadedly connected with the sealing cover 121 within the range of the groove 1213, thereby achieving a sealing effect.

[0052] The thread of the groove 1213 can be set on the outer wall of the cover 1211, or on the inner wall of the flange 1212. The opening 114 of the corresponding tank 110 cooperates with the groove 1213, and the thread can be set on the inner wall of the inner cylinder 111, or on the outer wall of the outer cylinder 112 to ensure the threaded sealing connection. The cover 1211 can be made of silicone, and most of the cover 1211 is inserted into the opening 114. The outer wall of the cover 1211 contacts the inner wall of the inner cylinder 111 to reduce steam loss and heat exchange.

[0053] According to an embodiment provided by the utility model, the cover 1211 is provided with a first through hole, the steam delivery component 200 and the detection component 300 are both penetrated through the first through hole, and a first seal 1214 is provided between the cover 1211 and the steam delivery component 200 and the detection component 300. In this embodiment, the cover 1211 is provided with a first through hole, the extension direction of the first through hole is the vertical direction, and it is located in the middle of the cover 1211, corresponding to the installation position of the delivery needle 210 and the thermocouple 310. That is, the thermocouple 310 and the delivery needle 210 extend into the condensation tank 100 from the outside of the condensation tank 100 through the first through hole, and the first through hole is provided with a first seal 1214 at the contact position with the thermocouple 310 and the delivery needle 210, which, on the one hand, has the function of ensuring the sealing effect of the sealing cover 121, and on the other hand, plays a fixing function of preventing the thermocouple 310 and the delivery needle 210 from moving and shifting on the sealing cover 121.

[0054] In this embodiment, the first sealing member 1214 is a hot silicone sealing ring, which is arranged at one end of the first through hole located outside the tank body 110, that is, at the outer end of the first through hole to achieve sealing and fixation.

[0055] According to an embodiment provided by the utility model, the cover assembly 120 also includes a tube body 122, which is located in the tank body 110 and inserted into the first through hole. The tube body 122 is sleeved on the outside of the detection component 300, and a second sealing member 1216 is provided between the cover body 1211 and the tube body 122. In this embodiment, a tube body 122 is provided at one end of the cover body 1211 located inside the tank body 110, and the tank body 110 is inserted into the first through hole and fixed, so that the combination of the thermocouple 310 and the delivery needle 210 enters the first through hole from the outside, penetrates the tube body 122, and then extends into the tank body 110 by the tube body 122, that is, the tube body 122 wraps the thermocouple 310 and the delivery needle 210 as a whole, plays a surrounding and fixing role, maintains the vertical extension structure of the delivery needle 210 and the thermocouple 310, and avoids deformation and dislocation of the delivery needle 210 and the thermocouple 310. The tube body 122 can also guide the extension direction of the delivery needle 210 and the thermocouple 310.

[0056] A second sealing member 1216 is provided at the contact position between the first through hole and the tube body 122 , which can ensure the sealing effect of the sealing cover 121 on the one hand, and prevent the tube body 122 from moving on the sealing cover 121 on the other hand.

[0057] In this embodiment, the second sealing member 1216 is a hot silicone sealing ring, which is arranged at one end of the first through hole located inside the tank body 110, that is, at the inner end of the first through hole to achieve sealing and fixation.

[0058] According to an embodiment provided by the utility model, the cover assembly 120 also includes a fixing ring 123 and a fixing plate 124. The fixing ring 123 is arranged around and pressed against the outer wall of the flange 1212. The fixing plate 124 is pressed against the top surface of the sealing cover 121 and the fixing ring 123. The fixing plate 124 is provided with a second through hole corresponding to the first through hole. The detection component 300 and the steam delivery component 200 are passed through the second through hole.

[0059] In this embodiment, the fixing ring 123 is fastened to the outside of the flange 1212, that is, the flange 1212 is located between the fixing ring 123 and the opening of the tank body 110. After the sealing cover 121 is threadedly connected to the opening of the tank body 110, the fixing ring 123 is sleeved and pressed on the outside of the flange 1212. The fixing plate 124 is set on the top surface of the sealing cover 121 and the top surface of the fixing ring 123. The sealing cover 121 is surrounded and protected by the cooperation of the fixing plate 124 and the fixing ring 123. The fixing ring 123 further fastens the connection of the sealing cover 121 at the opening of the tank body 110 to improve the sealing effect. The delivery needle 210 and the thermocouple 310 first pass through the second through hole of the fixing plate 124, then pass through the first through hole of the sealing cover 121 and the tube body 122, and finally enter the liquid medium 400.

[0060] In this embodiment, a protrusion 1231 is provided on the inner side of the bottom of the fixing ring 123, and a notch 1215 matching with the protrusion 1231 is provided on the bottom of the flange 1212. When the fixing ring 123 is sleeved on the outside of the flange 1212, the protrusion 1231 is embedded in the notch 1215, and the protrusion 1231 and the notch 1215 restrict and position each other to prevent the fixing ring 123 from rotating and falling off. The fixing plate 124 presses the fixing ring 123 and the sealing cover 121 as a whole to limit the fixing plate 124 and the sealing cover 121 in the vertical direction.

[0061] Furthermore, the combination of the fixing ring 123 and the fixing plate 124 can be connected and fixed to an external bracket, thereby positioning the combination of the sealing cover 121 and the tank body 110 , and ensuring that the position of the tank body 110 is fixed and supported.

[0062] like Figure 4 As shown, according to an embodiment provided by the utility model, the steam heat detection device of the steam ablation equipment also includes a weighing component 500 and a controller. The weighing component 500 is arranged below the condensation tank 100, and is suitable for obtaining the weight of the condensation tank 100 and sending the weight signal to the controller. The controller is also suitable for receiving the temperature signal sent by the detection component 300, and the controller obtains the steam heat based on the weight signal and the temperature signal.

[0063] In this embodiment, the weighing component 500 includes a weighing sensor and a weighing tray. The weighing sensor is located under the weighing tray. The weighing tray supports the condensing tank 100, so that the weight of the condensing tank 100 can be weighed in real time, and then used to accurately measure the weight change of the liquid medium 400. When the amount of steam released into the liquid medium 400 is unknown, the weight of the liquid medium 400 in the condensing tank 100 can be obtained through the weighing component 500.

[0064] like Figure 4 and Figure 5 As shown, in one embodiment, the steam heat detection device of the steam ablation device also includes a computer component, which includes a host 710, a display screen 730, a status indicator light, a foot control switch 720 or a button. The control panel CPU in the host 710 is equipped with multiple interfaces, which can be connected to the display screen 730, a weighing sensor, and a thermocouple 310, and a thermocouple 310 temperature reading circuit is set to obtain the real-time temperature. The detection component 300 is connected to the thermocouple 310 interface of the control panel CPU. During heat detection, the display screen 730 can display the temperature value in real time. After the steam ablation catheter 600 is connected to the delivery needle 210 fixed in the condensation tank 100, the steam is released. After the temperature change of the liquid medium 400 is recorded by the thermocouple 310, the software calculates and automatically outputs the heat value.

[0065] When the steam heat detection is performed, the status indicator light turns blue, indicating that the heat test is in progress. After the detection is completed, the status indicator light turns red, indicating that the heat test has been completed. The foot control switch 720 or the button is connected to the control board CPU through an aviation plug. When the catheter 600 of the steam ablation device and the steam delivery component 200 are assembled, the program is executed after stepping on the foot control switch 720 or pressing the button, and the built-in program of the control board CPU executes the steam heat detection method of the steam ablation device.

[0066] The steam heat detection method of the steam ablation device provided by the utility model is described below. The steam heat detection method of the steam ablation device described below and the steam heat detection device of the steam ablation device described above can correspond to each other.

[0067] The present utility model also provides a method for detecting the heat of steam in a steam ablation device, which is applied to a steam heat detection device of a steam ablation device as in the above embodiment, and includes:

[0068] Get detection mode signal;

[0069] Based on the detection mode signal, the water volume parameter and heat parameter of the liquid medium 400 in the condensing tank 100 before the current steam release are obtained; wherein the heat parameter is a parameter based on the heat absorbed by the condensing tank 100 and the set heat, the set heat is the heat generated when the temperature of the steam drops to the final temperature after the steam is released after liquefaction, and the water volume parameter of the liquid medium 400 is obtained based on the mapping relationship formed by the detection mode signal and the water volume parameter;

[0070] Obtaining the temperature parameter of the liquid medium 400 in the condensation tank 100; wherein the temperature parameter of the liquid medium 400 is obtained based on the final temperature of the liquid medium 400 after the current steam release and the initial temperature of the liquid medium 400 before the current steam release;

[0071] Based on the water quantity parameter and the heat parameter of the liquid medium 400 and the temperature parameter of the liquid medium 400, the current steam heat is obtained.

[0072] The steam heat detection method of the steam ablation device of the embodiment of the utility model selects the corresponding detection mode according to different detection conditions, obtains the detection mode signal, and then obtains the water volume parameter and heat parameter of the liquid medium 400 in the condensation tank 100 before the current steam release based on the detection mode signal, wherein the heat parameter is the difference between the heat absorbed by the condensation tank 100 and the set heat, and the set heat is the heat generated when the temperature drops to the final temperature after the quantitative steam is liquefied. The water volume parameter of the liquid medium 400 is obtained by the mapping relationship formed by the detection mode signal and the water volume parameter. Then, the temperature parameter of the liquid medium 400 in the condensation tank 100 is obtained, wherein the temperature parameter of the liquid medium 400 is the difference between the final temperature of the liquid medium 400 after the current steam release and the initial temperature of the liquid medium 400 before the current steam release. Finally, the current steam heat is obtained based on the product of the water volume parameter of the liquid medium 400 and the temperature parameter of the liquid medium 400 and the sum of the heat parameters.

[0073] In this embodiment, the heat q is set 水 The heat generated by condensing water at 100℃ to 20-45℃, the heat absorbed by the condensation tank 100 罐 When the ambient temperature is stable (room temperature 20-25°C), the main influencing factors are the contact area between the water and the inner wall of the tank body 110 and the temperature difference with the environment. The heat absorbed by the condensation tank 100 is q 罐 After determining the initial water volume m0 of the liquid medium 400 in the condensation tank 100, the water volume m0 can be obtained by testing the temperature drop of 45°C water within 1 hour and taking the average value. The weight parameter involved in the water volume parameter of the liquid medium 400 is obtained by weighing the condensation tank 100 by the weighing component 500, and the temperature parameter involved in the temperature parameter of the liquid medium 400 is obtained by detecting the temperature of the liquid medium 400 by the detection component 200.

[0074] According to an embodiment provided by the present utility model, obtaining the temperature parameter of the liquid medium 400 in the condensation tank 100 includes:

[0075] Obtaining the initial temperature of the liquid medium 400 before the current steam release;

[0076] The actual temperature of the liquid medium 400 after the current steam release is obtained every set time, until the number of acquisitions reaches the set number, and the temperature difference between two adjacent actual temperatures of the liquid medium 400 is calculated;

[0077] Determine that the temperature difference of the actual temperature of each liquid medium 400 in the set number of times is less than the set temperature difference, and the temperature difference between the actual temperature of the liquid medium 400 obtained for the first time and the actual temperature of the liquid medium 400 obtained for the last time in the set number of times is less than the set temperature difference, and obtain the actual temperature of the liquid medium 400 obtained for the last time as the final temperature of the liquid medium 400 after the current steam release.

[0078] In this embodiment, after obtaining the initial temperature of the liquid medium 400 before the current steam release, the current steam release is performed, and the actual temperature of the current liquid medium 400 is recorded through the thermocouple 310. The temperature is recorded once every set time interval t and the temperature change is calculated. After the cumulative number of records reaches the set number k, it is determined whether the temperature difference of the actual temperature of each liquid medium 400 in the set number of times is less than the set temperature difference, and whether the temperature difference between the actual temperature of the liquid medium 400 obtained for the first time in the set number of times and the actual temperature of the liquid medium 400 obtained for the last time is less than the set temperature difference. When the temperature change fluctuates within the kt time (the cumulative time of k records) and the temperature difference does not exceed the set temperature difference of 0.1°C, the actual temperature of the liquid medium 400 obtained for the last time is recorded as the final temperature of the liquid medium 400 after the current steam release.

[0079] According to an embodiment provided by the present invention, the steam heat detection method of the steam ablation device further includes:

[0080] Determine that the temperature difference of the actual temperature of each liquid medium 400 in the set number of times is greater than or equal to the set temperature difference, or that the temperature difference between the actual temperature of the liquid medium 400 obtained for the first time and the actual temperature of the liquid medium 400 obtained for the last time in the set number of times is greater than or equal to the set temperature difference;

[0081] The actual temperature of the liquid medium after the current steam release is obtained every set time period until the number of acquisitions reaches the set number, and the temperature difference between two adjacent actual temperatures of the liquid medium 400 is calculated.

[0082] In this embodiment, after obtaining the initial temperature of the liquid medium 400 before the current steam release, the current steam release is performed, and the actual temperature of the current liquid medium 400 is recorded through the thermocouple 310. The temperature is recorded once at every set time interval t and the temperature change is calculated. After the cumulative number of recordings reaches the set number of times k, it is determined whether the temperature difference of the actual temperature of each liquid medium 400 in the set number of times is less than the set temperature difference, and whether the temperature difference between the actual temperature of the liquid medium 400 obtained for the first time in the set number of times and the actual temperature of the liquid medium 400 obtained for the last time is less than the set temperature difference. If the temperature difference of the actual temperature of each liquid medium 400 in the set number of times is greater than or equal to the set temperature difference, or the temperature difference between the actual temperature of the liquid medium 400 obtained for the first time in the set number of times and the actual temperature of the liquid medium 400 obtained for the last time is greater than or equal to the set temperature difference, then return to continue to obtain the actual temperature of the liquid medium after the current steam release.

[0083] According to an embodiment provided by the utility model, when the detection mode signal is the first detection mode signal, the water volume parameter of the liquid medium 400 is obtained based on the water volume of the liquid medium 400 in the condensing tank 100 in the initial state and the steam water volume released the current time. In this embodiment, when normal detection is generally performed, the detection mode is the general mode, and the first detection mode signal is sent by input or key triggering. The water volume parameter of the liquid medium 400 corresponding to the first detection mode signal is the product of the difference between the current steam release times and 1 and the steam water volume released the current time, and then the sum of the water volume of the liquid medium 400 in the condensing tank 100 in the initial state.

[0084] In this embodiment, in the first detection mode, the steam heat Q n =[m0+(n-1)m a ](T n -T n-1 )+q 罐 -q 水 n is the current number of steam releases, m0 is the amount of water in the liquid medium 400 in the condenser 100 in the initial state, m a is the amount of steam water released this time, T n is the final temperature of the liquid medium 400 after the current steam release, T n-1 is the initial temperature of the liquid medium 400 before the current steam release, q 罐 is the heat absorbed by the condensation tank 100, q 水 To set the heat.

[0085] According to an embodiment provided by the present invention, when the detection mode signal is the second detection mode signal, the water volume parameter of the liquid medium 400 is obtained based on the water volume of the liquid medium 400 in the condenser 100 before the current steam release. In this embodiment, if the steam water volume m released at the current time isa If it cannot be confirmed, the condensation tank 100 can be weighed by weighing the weighing component 500 to obtain the water volume of the liquid medium 400 in the condensation tank 100 before the current steam release. In this case, the detection mode is the second detection mode, and the second detection mode signal is sent out by input or button triggering. The water volume parameter of the liquid medium 400 corresponding to the second detection mode signal is the water volume of the liquid medium 400 in the condensation tank 100 before the current steam release.

[0086] In this embodiment, in the second detection mode, the steam heat Q n =m n (T n -T n-1 )+q 罐 -q 水 . m n is the amount of water in the liquid medium 400 in the condenser 100 before the current steam release, T n is the final temperature of the liquid medium 400 after the current steam release, T n-1 is the initial temperature of the liquid medium 400 before the current steam release, q 罐 is the heat absorbed by the condensation tank 100, q 水 To set the heat.

[0087] According to an embodiment provided by the present invention, when the detection mode signal is the third detection mode signal, the water volume parameter of the liquid medium 400 is obtained based on the water volume of the liquid medium 400 in the condensation tank 100 in the initial state. In this embodiment, if the water volume m0 of the liquid medium 400 in the condensation tank 100 in the initial state is much larger than the steam water volume m released at the current time, a When the amount of steam released each time is negligible, the detection mode is the third detection mode, and the third detection mode signal is sent by input or button triggering. The water volume parameter of the liquid medium 400 corresponding to the third detection mode signal is the water volume of the liquid medium 400 in the condensation tank 100 in the initial state.

[0088] In this embodiment, in the third detection mode, the steam heat Q n =m0(T n -T n-1 )+q 罐 -q 水 m0 is the amount of water in the liquid medium 400 in the condensation tank 100 in the initial state, T n is the final temperature of the liquid medium 400 after the current steam release, T n-1 is the initial temperature of the liquid medium 400 before the current steam release, q 罐 is the heat absorbed by the condensation tank 100, q 水 To set the heat.

[0089] According to an embodiment provided by the present utility model, based on the water volume parameter, heat parameter and temperature parameter of the liquid medium 400, obtaining the current steam heat also includes:

[0090] When a continuous detection signal is obtained, the number of times the current steam is released is recorded plus 1;

[0091] Turning to the step of acquiring the temperature parameter of the liquid medium 400 in the condensation tank 100 .

[0092] In one embodiment, m0, q 水 is a known constant, m0 is generally selected as 100 or 200g, m a 0.42g, q 罐 The empirical value is 1.1 cal, q 水 According to the calorie calculation formula m a *(100-T n )get.

[0093] The specific implementation process is as follows:

[0094] like Figure 6 As shown, if the steam quality is known, there is no need for the weighing component 500 to weigh in real time.

[0095] After the above known parameters are set in the system, the first detection mode is entered.

[0096] 1) Add 100 g or 200 g of liquid medium 400 close to room temperature (25°C) into the condensation tank 100;

[0097] 2) After the steam ablation device completes pre-treatment outside the detection device, the catheter 600 of the steam ablation device to be tested is sealedly connected to the delivery needle 210;

[0098] 3) Click the "Start" button on the display screen 730 or step on the foot control switch 720 to record the initial temperature T0;

[0099] 4) Execute the hot steam release action and record the actual temperature of the liquid medium 400 after the current steam release every 0.5 seconds;

[0100] 5) Wait for the temperature to stabilize (temperature change within 15 seconds does not exceed 0.1°C) and record the end temperature T n ;

[0101] 6) According to formula (1) Q n =[m0+(n-1)m a ](T n -T n-1 )+q 罐 -q 水 Calculate the calorific value.

[0102] And so on, you can repeat steps 3) to 6) to perform multiple tests.

[0103] like Figure 7 As shown, if the steam quality is unknown, it can be tested by real-time weighing with the weighing component 500, and "weighing" can be checked in the software to enter the second detection mode.

[0104] Start after setting known parameters in the system.

[0105] 1) Add 100 g or 200 g of liquid medium 400 close to room temperature (25°C) into the condensation tank 100;

[0106] 2) After the steam ablation device completes pre-treatment outside the detection device, the catheter 600 of the steam ablation device to be tested is sealedly connected to the delivery needle 210;

[0107] 3) Place the condensation tank 100 on the weighing component 500, click the "Start" button on the display screen 730 or step on the foot control switch 720 to record the initial temperature T n-1 and mass m n ;

[0108] 4) Execute the hot steam release action and record the actual temperature of the liquid medium 400 after the current steam release every 0.5 seconds;

[0109] 5) Wait for the temperature to stabilize (temperature change within 15 seconds does not exceed 0.1°C) and record the end temperature T n and the amount of steam water released this time (weight change of weighing component) m a ;

[0110] 6) According to formula (2) Q n =m n (T n -T n-1 )+q 罐 -q 水 Calculate the calorific value.

[0111] Steps 3) to 6) can be repeated for multiple tests.

[0112] like Fig. 9 As shown, it is the temperature change curve of this embodiment. When the hot steam release action is executed, the temperature of the steam position in the condensing tank 100 rises rapidly. After 9 seconds of steam release, the system is waited to stabilize to obtain the final temperature when the temperature is stable. The software automatically calculates and outputs the steam calorific value result according to the formula.

[0113] like Figure 8 As shown, if the water volume m0 of the liquid medium 400 in the condensation tank 100 in the initial state is much larger than the steam water volume m released at the current time, a, the weighing component 500 can be used for real-time weighing for testing, and "initial weighing" can be checked in the software to enter the third detection mode.

[0114] Start after setting known parameters in the system.

[0115] 1) Add 100 g or 200 g of liquid medium 400 close to room temperature (25°C) into the condensation tank 100;

[0116] 2) After the steam ablation device completes pre-treatment outside the detection device, the catheter 600 of the steam ablation device to be tested is sealedly connected to the delivery needle 210;

[0117] 3) Place the condensation tank 100 on the weighing component 500, click the "Start" button on the display screen 730 or step on the foot control switch 720 to record the initial temperature T n-1 and mass m0;

[0118] 4) Execute the hot steam release action and record the actual temperature of the liquid medium 400 after the current steam release every 0.5 seconds;

[0119] 5) Wait for the temperature to stabilize (temperature change within 15 seconds does not exceed 0.1°C) and record the end temperature T n ;

[0120] 6) According to formula (3) Q n =m0(T n -T n-1 )+q 罐 -q 水 Calculate the calorific value.

[0121] Steps 3) to 6) can be repeated for multiple tests.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A steam heat detection device for a steam ablation device, characterized in that: It includes a condensing tank, a steam conveying component and a detecting component. The condensing tank is suitable for accommodating a liquid medium. The steam conveying component is inserted in the condensing tank, and the air outlet of the steam conveying component is located in the liquid medium. The detecting component is located in the condensing tank and is suitable for detecting the temperature of the liquid medium.

2. The steam heat detection device of the steam ablation device according to claim 1, characterized in that: The detection component includes at least one thermocouple, which is inserted in the condensation tank, and the thermocouple and the steam conveying component extend in the same direction in the condensation tank, and the outer wall of the thermocouple is coated with protective glue.

3. The steam heat detection device of the steam ablation device according to claim 2, characterized in that: The plurality of thermocouples are evenly distributed around the outside of the steam delivery component; the detection points of the plurality of thermocouples are sequentially arranged in the liquid medium along the extension direction of the steam delivery component.

4. The steam heat detection device of the steam ablation device according to claim 1, characterized in that: The steam delivery component comprises a delivery needle, and the gas outlet of the delivery needle is located in the middle of the liquid medium.

5. The steam heat detection device of the steam ablation device according to claim 1, characterized in that: The condensation tank includes a tank body and a cover assembly, the tank body includes an inner cylinder and an outer cylinder, the inner cylinder is arranged on the inner side of the outer cylinder, the liquid medium is accommodated inside the inner cylinder, a heat-insulating cavity is formed between the outer cylinder and the inner cylinder, the cover assembly is covered on the opening of the tank body, and the steam conveying component and the detection component are both penetrated through the cover assembly.

6. The steam heat detection device of the steam ablation device according to claim 5, characterized in that: The cover assembly includes a sealing cover, which includes a cover body and a flange. The flange is arranged around the outer side of the cover body, and a groove is formed between the inner wall of the flange and the outer wall of the cover body. The opening of the tank body is located in the groove, and the opening of the tank body is threadedly connected to the sealing cover.

7. The steam heat detection device of the steam ablation device according to claim 6, characterized in that: The cover body is provided with a first through hole, the steam conveying component and the detection component are both penetrated through the first through hole, and a first sealing member is provided between the cover body and the steam conveying component and the detection component.

8. The steam heat detection device of the steam ablation device according to claim 7, characterized in that: The cover assembly further includes a tube body, which is located in the tank body and inserted into the first through hole. The tube body is sleeved on the outside of the detection component, and a second sealing member is provided between the cover body and the tube body.

9. The steam heat detection device of the steam ablation device according to claim 7, characterized in that: The cover assembly also includes a fixing ring and a fixing plate, the fixing ring is surrounded and pressed against the outer wall of the flange, the fixing plate is pressed against the top surface of the sealing cover and the fixing ring, the fixing plate is provided with a second through hole corresponding to the first through hole, and the detection component and the steam delivery component are passed through the second through hole.

10. The steam heat detection device of the steam ablation device according to any one of claims 1 to 9, characterized in that: It also includes a weighing component and a controller. The weighing component is arranged below the condensing tank and is suitable for obtaining the weight of the condensing tank and sending a weight signal to the controller. The controller is also suitable for receiving the temperature signal sent by the detection component. The controller obtains the steam heat based on the weight signal and the temperature signal.

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