Test setup for steam ablation equipment

Abstract

The present invention relates to the technical field of steam ablation, and provides a test device for a steam ablation device, comprising: a main body, a pressure regulating component, and a temperature measuring component. A containing cavity is formed inside the main body, and a vent and an opening are provided on the main body. Both the vent and the opening are connected to the containing cavity, and the vent is suitable for conveying steam to the containing cavity; the pressure regulating component is provided at the opening, and the pressure regulating component is provided with an air vent. When the gas pressure in the containing cavity is not less than the set value of the pressure regulating component, the air vent is connected to the opening; the temperature measuring component is used to obtain the temperature of the containing cavity. The test device for the steam ablation device of the present invention can simulate the process of effectively releasing steam after the steam of the steam ablation device breaks through the pressure of human tissue, and the user can judge whether suitable steam is obtained according to the pressure setting value of the pressure regulating component and the temperature obtained by the temperature measuring component.

Description

Technical Field

[0001] The invention relates to the technical field of steam ablation, and in particular to a testing device for steam ablation equipment. Background Art

[0002] Prostatic hyperplasia is one of the most common urinary diseases in men. Existing minimally invasive treatment technologies for benign prostatic hyperplasia include radiofrequency ablation, microwave ablation, electroporation ablation, water jet ablation, and thermal steam ablation. Among them, thermal steam ablation treatment technology is to send a steam catheter into the target position and release high-temperature water vapor to achieve the purpose of destroying and ablating the diseased tissue. The latent heat released during the condensation of high-temperature water vapor can cause the cell membrane protein of the diseased tissue to coagulate and denature, thereby causing cell death in the lesion site. The damaged tissue will be absorbed by the surrounding tissue in the following days or weeks, and finally achieve the treatment purpose. However, the inherent characteristics of human tissue will hinder the release of steam from the steam delivery components (such as puncture needles) involved in it. Steam can only be effectively released after breaking through the pressure of human tissue. If the steam pressure is less than the target pressure, the steam cannot be delivered to the target position. If the steam pressure reaches the target pressure but the steam temperature is less than the target temperature, it will not only fail to achieve the ablation effect but also cause harm to the patient. If the temperature exceeds the target temperature, it will also cause unnecessary harm to the patient. How to obtain suitable steam is an existing industry problem. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. To this end, the present invention proposes a test device for steam ablation equipment, which solves the difficulty of obtaining suitable steam in the prior art by simulating the process of steam breaking through the pressure of human tissue.

[0004] A testing device for a steam ablation device according to an embodiment of the present invention includes:

[0005] A main body, an accommodating cavity is formed inside, the main body is provided with a vent hole and an opening, the vent hole and the opening are both connected to the accommodating cavity, and the vent hole is suitable for conveying steam to the accommodating cavity;

[0006] A pressure regulating assembly is arranged at the opening, and the pressure regulating assembly is provided with an air leakage port. When the gas pressure in the accommodating chamber is not less than a set value of the pressure regulating assembly, the air leakage port is connected to the opening;

[0007] The temperature measuring component is used to obtain the temperature of the accommodating cavity.

[0008] The testing device for the steam ablation device of the present invention can simulate the process of effectively releasing steam after the steam of the steam ablation device breaks through the pressure of human tissue. The user can judge whether appropriate steam is obtained according to the pressure setting value of the pressure regulating component and the temperature obtained by the temperature measuring component.

[0009] According to one embodiment of the present invention, the pressure regulating assembly includes a valve body, a fixing member, a valve core and an elastic member, the valve body is arranged at the opening, the valve body and the fixing member are detachably connected, and there is a regulating chamber between the valve body and the fixing member, the valve core is at least partially installed in the regulating chamber, the side wall of the regulating chamber is provided with the air leakage port, and the valve core moves along the regulating chamber to open and close the air leakage port and make the elastic member expand and contract.

[0010] According to one embodiment of the present invention, the first end of the valve core is disposed in the regulating cavity, the second end of the valve core extends out of the regulating cavity, and a manual pull ring is disposed at the second end of the valve core.

[0011] According to one embodiment of the present invention, a limiting boss is provided at the first end of the valve core, a mounting cavity is formed on the side of the fixing member facing the valve body, the first end of the elastic member is located in the mounting cavity, and the second end of the elastic member abuts against the limiting boss.

[0012] According to one embodiment of the present invention, a fluid channel is formed in the valve body, the fluid channel is connected to the opening, a step surface is provided at the end of the fluid channel, and a valve core seal is provided between the limiting boss and the step surface; when the limiting boss abuts against the step surface, the fluid channel and the air vent are disconnected; when the limiting boss leaves the step surface, the fluid channel and the air vent are connected.

[0013] According to one embodiment of the present invention, the first end of the valve body is connected to the main body, the second end of the valve body is provided with a connecting component, the first end of the valve body and the second end of the valve body are opposite to each other, and the fixing member is threadedly connected to the connecting component.

[0014] According to an embodiment of the present invention, a plurality of scales are provided on the outer surface of the fixing member, and the closer the distance between the end of the fixing member away from the connecting member and the connecting member is, the greater the air pressure value indicated by the corresponding scale.

[0015] According to one embodiment of the present invention, the valve body and the main body are threadedly connected, and / or,

[0016] A first sealing ring is arranged between the valve body and the main body.

[0017] According to one embodiment of the present invention, the main body includes a first end cover, a second end cover and a mounting tube; the mounting tube is provided with the accommodating cavity inside; the first end cover is arranged at the first end of the mounting tube, the second end cover is arranged at the second end of the mounting tube, the vent hole is arranged at the first end cover, and the pressure regulating assembly is arranged at the second end cover.

[0018] According to an embodiment of the present invention, a receiving groove is provided on the end surface of the first end cover facing the receiving cavity, the temperature measuring component is provided on the first end cover, and the probe of the temperature measuring component is located in the receiving groove.

[0019] According to one embodiment of the present invention, it includes a sealing buckle, which is passed through the vent hole and at least partially located in the receiving groove. A limiting portion is provided on one side of the receiving groove of the sealing buckle, and the limiting portion abuts against the first end cover. The sealing buckle is provided with a mounting hole, and the mounting hole is used to install a steam delivery component.

[0020] According to one embodiment of the present invention, the installation tube is a transparent pressure tube.

[0021] According to one embodiment of the present invention, the temperature measuring element and the main body are threadedly connected, and / or,

[0022] A second sealing ring is arranged between the temperature measuring element and the main body.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 is a schematic structural diagram of a testing device for a steam ablation device provided in an embodiment of the present invention;

[0026] Figure 2 It is a schematic cross-sectional structural diagram of a testing device for a steam ablation device with a vent and an opening disconnected, provided in an embodiment of the present invention;

[0027] Figure 3 It is a schematic cross-sectional structural diagram of a testing device in which a vent and an opening of a steam ablation device are connected, provided in an embodiment of the present invention;

[0028] Reference numerals:

[0029] 100, main body; 101, receiving chamber; 102, vent hole; 103, opening; 110, first end cover; 111, receiving groove; 120, mounting tube; 130, second end cover;

[0030] 200, pressure regulating assembly; 201, air vent; 210, valve body; 211, fluid channel; 212, step surface; 213, connecting component; 220, fixing member; 221, mounting cavity; 230, valve core; 231, limiting boss; 240, elastic member; 250, manual pull ring; 260, valve core sealing member; 270, first sealing ring;

[0031] 300, temperature measuring element; 310, second sealing ring;

[0032] 400, sealing buckle; 410, mounting hole; 420, limiting part;

[0033] 500. Steam delivery components. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, wherein the fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0037] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] According to the test device of the steam ablation device provided by the present invention (hereinafter referred to as the test device), please refer to Figures 1 to 3 The test device includes a main body 100, a pressure regulating assembly 200 and a temperature measuring component 300. A receiving chamber 101 is formed inside the main body 100, and a vent hole 102 and an opening 103 are provided in the main body 100. The vent hole 102 and the opening 103 are both connected to the receiving chamber 101, and the vent hole 102 is suitable for conveying steam to the receiving chamber 101; the pressure regulating assembly 200 is provided at the opening 103, and the pressure regulating assembly 200 is provided with an air leakage port 201. When the gas pressure of the receiving chamber 101 is not less than the set value of the pressure regulating assembly 200, the air leakage port 201 of the pressure regulating assembly 200 is connected to the opening 103; the temperature measuring component 300 is used to obtain the temperature of the receiving chamber 101.

[0040] The test device for the steam ablation device of the present invention can simulate the process of effectively releasing steam after the steam of the steam ablation device breaks through the pressure of human tissue, and the user can judge whether appropriate steam is obtained according to the pressure setting value of the pressure regulating component 200 and the temperature obtained by the temperature measuring component 300. Among them, appropriate steam can be understood as the pressure value that the steam reaches to break through human tissue, and the temperature value that the steam reaches to perform ablation treatment.

[0041] It is understandable that the vent 102 is used to connect the steam delivery component 500 of the steam ablation device, so that the steam output by the steam ablation device can enter the accommodating cavity 101 of the main body 100. In order to ensure the airtightness of the accommodating cavity 101, a sealing buckle 400 (described later) can be provided at the vent 102. The sealing effect of the sealing buckle 400 between the steam delivery component 500 and the vent 102 can ensure that the steam in the accommodating cavity 101 does not leak out, thereby ensuring the accuracy of the measured steam pressure.

[0042] It can be understood that the opening 103 is used to connect the pressure regulating component 200, and the pressure regulating component 200 can adjust the set value of the pressure. Only when the pressure of the steam in the accommodating chamber 101 is not less than the set value, the air vent 201 of the pressure regulating component 200 is connected to the opening 103. When the pressure of the steam is less than the set value, the air vent 201 of the pressure regulating component 200 and the opening 103 are not connected.

[0043] It can be understood that the temperature measuring component 300 includes a temperature sensor, wherein the temperature sensor can be one of a temperature measuring thermocouple, an infrared sensor, and a thermal resistance sensor.

[0044] In one embodiment, the temperature measuring element 300 includes a display module, which can be used to display the measured temperature value. The display module can be a digital display screen or a pointer instrument.

[0045] The temperature measuring element 300 is disposed in the accommodating cavity 101 , and may also be disposed on the main body 100 .

[0046] It should be noted that the pressure of different parts of human tissue is different, and the pressure setting value of the pressure regulating component 200 can be 0.8psi-1.2psi. The user can adjust the pressure setting value of the pressure regulating component 200 as needed.

[0047] Taking the test of the steam ablation device for treating prostate hyperplasia as an example, during the test, the steam delivery component of the steam ablation device is inserted into the test device, and after confirming that the air tightness of the test device is good, the steam ablation device is started, and the steam ablation device generates steam, and releases the steam into the receiving cavity 101 through the steam delivery component. As the steam is released, when the steam pressure generated in the receiving cavity 101 is greater than or equal to the human tissue pressure of the prostate (1 psi), the vent 201 of the pressure regulating component 200 is connected to the receiving cavity 101, and the steam in the receiving cavity 101 flows out through the vent 201 to release the steam.

[0048] If the steam is released through the vent 201 and the temperature of the steam measured by the temperature measuring element 300 is about 103°C, it proves that the steam generated by the device is sufficient to break through the pressure of the prostate tissue, and the steam can be effectively released after being inserted into the prostate tissue. In addition, the steam temperature meets the requirements of ablation, and effective ablation treatment can be performed.

[0049] If the steam is released through the vent 201 and the steam temperature measured by the temperature measuring element 300 cannot reach 103° C., it means that the steam generated by the steam ablation device cannot break through the tissue pressure to release steam in the prostate, and the steam ablation device still needs to be debugged.

[0050] It should be noted that the steam temperature of about 103° C. during the effective steam release process under a pressure of 1 psi is only used as an example and is not a specific limitation of the present invention. The test device can adjust different pressures and different temperatures as needed.

[0051] It should be noted that the shorter the time it takes for steam to break through the pressure of human tissue, the less harm it causes to the human body. According to the time it takes for the steam delivery component 500 to release steam to the opening 103 connected to the vent 201 of the pressure regulating component 200, the user can adjust the steam generation speed of the steam ablation device, shorten the time it takes for steam to break through the pressure, and reduce the harm of steam to the human body.

[0052] In one embodiment, the testing device is provided with a timer, which is used to calculate the time for the steam delivery assembly 500 to release steam to the air release port 201 of the pressure regulating assembly 200 and communicate with the opening 103. The user can adjust the steam ablation device according to the intuitive test of the timer, which is convenient for the user to operate.

[0053] According to an embodiment of the present invention, please refer to Figure 2 The pressure regulating assembly 200 includes a valve body 210, a fixing member 220, a valve core 230 and an elastic member 240. The valve body 210 is arranged at the opening 103. The valve body 210 and the fixing member 220 are detachably connected, and there is a regulating cavity between the valve body 210 and the fixing member 220. The valve core 230 is at least partially installed in the regulating cavity. The side wall of the regulating cavity is provided with an air leakage port 201. The valve core 230 moves along the regulating cavity to open and close the air leakage port 201 and make the elastic member 240 expand and contract.

[0054] It can be understood that the valve body 210 constitutes the main body 100 of the pressure regulating assembly 200, and the valve body 210 mainly plays the role of containing and fixing. The valve body 210 can be fixedly connected to the opening 103, and the fixed connection can include an integral connection, or it can be detachably connected to the opening 103. The main function of the fixing member 220 is to be installed on the valve body 210 and can fix the valve core 230, ensuring the stability and reliability of the valve core 230, and also providing the necessary space for the movement of the valve core 230. The valve body 210 and the fixing member 220 are detachably connected, wherein the detachable connection can be a threaded connection, a snap connection, a hinge connection, etc. The valve core 230 can move along the regulating cavity and can control the opening and closing of the air release port 201. The elastic member 240 is a functional part that works by elasticity. It can be retracted and its main function is to provide a rebound force to help the valve core 230 reset and keep the pressure in the regulating cavity stable. It should be noted that the first end of the elastic member 240 is connected to the valve core 230, and the first end of the elastic member 240 can be set at any fixed position in the pressure regulating assembly 200, and the valve core 230 can be displaced relative to the position to make the elastic member 240 expand and contract. The elastic member 240 can be a spring or a flexible material with elasticity.

[0055] According to one embodiment of the present invention, the first end of the valve core 230 is disposed in the regulating chamber, the second end of the valve core 230 extends out of the regulating chamber, and a manual pull ring 250 is disposed at the second end of the valve core 230. It is understandable that the steam in the accommodating chamber 101 will condense into condensed water after use. If the user needs to remove the main body 100 or the pressure regulating assembly 200, it will be very troublesome to handle the condensed water in the accommodating chamber 101. The manual pull ring 250 allows the operator to easily pull the valve core 230, and pulling the valve core 230 can connect the air vent 201 to the opening 103, and the condensed water can leave the test device through the air vent 201.

[0056] Of course, the manual pull ring 250 here is only used as an example rather than a specific limitation of the present invention. In addition to setting the manual pull ring 250 at the second end of the valve core 230, a connecting piece may also be set at the second end of the valve core 230, as long as the connecting piece can facilitate the user to pull the valve core 230 for operation.

[0057] In one embodiment, the side wall of the valve body 210 is provided with a plurality of air leakage holes 201, and the air leakage holes 201 are distributed along the axial direction of the valve body 210. It can be understood that a plurality of air leakage holes can improve the efficiency of drainage, and condensed water can leave the valve body 210 from the plurality of air leakage holes when the user pulls the valve core 230.

[0058] In one embodiment, the valve body 210 is provided with a water guide surface inclined toward the air discharge port 201, so as to facilitate rapid discharge of water from the connecting channel.

[0059] According to one embodiment of the present invention, the elastic member 240 is disposed in the regulating chamber, the first end of the elastic member 240 abuts against the valve core 230, and the second end of the elastic member 240 abuts against the fixing member 220. It is understood that the length of the elastic member 240 can be changed by adjusting the position of the valve core 230, thereby adjusting the set value of the pressure.

[0060] According to an embodiment of the present invention, please refer to Figure 2 and Figure 3 , a limiting boss 231 is provided at the first end of the valve core 230, a mounting cavity 221 is formed on the side of the fixing member 220 facing the valve body 210, a first end of the elastic member 240 is located in the mounting cavity 221, and a second end of the elastic member 240 abuts against the limiting boss 231. It can be understood that the mounting cavity 221 is formed on the side of the fixing member 220 facing the valve body 210, which can facilitate the installation of the elastic member 240, and the mounting cavity 221 has a limiting effect on the elastic member 240, thereby improving the stability of the elastic member 240. A limiting boss 231 is provided at the second end of the valve core 230, which can form a limiting cooperation with the fixing member 220 or other components to the elastic member 240, thereby ensuring the stability of the movement trajectory of the elastic member 240 in the regulating cavity and improving the reliability of the pressure regulating assembly 200.

[0061] According to one embodiment of the present invention, a fluid channel 211 is formed in the valve body 210, the fluid channel 211 is connected to the opening 103, a step surface 212 is provided at the end of the fluid channel 211, and a valve core 230 seal is provided between the limiting boss 231 and the step surface 212; when the limiting boss 231 abuts against the step surface 212, the fluid channel 211 and the air vent 201 are disconnected; when the limiting boss 231 leaves the step surface 212, the fluid channel 211 and the air vent 201 are connected.

[0062] It is understandable that the fluid channel 211 is connected to the opening 103, and the steam in the accommodating chamber 101 can apply pressure to the valve core 230 through the fluid channel 211. The step surface 212 cooperates with the limiting boss 231. When the limiting boss 231 abuts against the step surface 212, the fluid channel 211 is closed, and the fluid (including steam and condensed water) cannot flow; when the limiting boss 231 leaves the step surface 212, the fluid channel 211 opens, and the fluid can leave the test device. The valve core 230 seal is arranged between the limiting boss 231 and the step surface 212 to ensure the sealing performance. It can prevent the fluid from leaking during the adjustment process, and improve the accuracy and reliability of the adjustment.

[0063] In one embodiment, when the gas pressure of the accommodating chamber 101 is less than the set value of the pressure regulating assembly 200, the valve core 230 and the fluid channel 211 of the valve body 210 are in contact, and the air leakage port 201 is connected to the installation chamber 221. The installation chamber 221 is provided with a guide slope, and the guide slope is inclined toward the air leakage port 201. It can be understood that when the user pulls up the valve core 230, some condensed water may enter the installation chamber 221. Through the guide slope, when the pressure regulating assembly 200 has no external force, the condensed water can spontaneously flow to the air leakage port 201 to prevent water from accumulating in the installation chamber 221.

[0064] According to an embodiment of the present invention, please refer to Figure 2 and Figure 3 , the first end of the valve body 210 is connected to the main body 100, the second end of the valve body 210 is provided with a connecting part 213, the first end of the valve body 210 and the second end of the valve body 210 are opposite, and the fixing member 220 is threadedly connected to the connecting part 213. It can be understood that the fixing member 220 is threadedly connected to the connecting part 213, so that a stable connection is formed between the valve body 210 and the main body 100 and the fixing member 220, thereby improving the overall stability and reliability of the equipment. The fixing member 220 can be easily installed and disassembled, reducing the difficulty of maintenance and replacement, and improving work efficiency. At the same time, the threaded connection facilitates the adjustment of the distance between the fixing member 220 and the valve body 210, thereby adjusting the pressure setting value of the pressure regulating assembly 200.

[0065] In one embodiment, the outer surface of the fixing member 220 is provided with a plurality of scales (not marked in the figure), and the closer the distance between the end of the fixing member 220 away from the connecting member 213 and the connecting member 213 is, the greater the air pressure value indicated by the corresponding scale. It can be understood that by providing a plurality of scales on the outer surface of the fixing member 220, the size of the air pressure value can be intuitively displayed, so that the operator can conveniently and quickly understand the pressure situation in the regulating chamber, thereby improving the accuracy and reliability of the regulation. Through the marking of the scale, it is possible to avoid excessive or low pressure due to misoperation or improper adjustment, thereby reducing potential safety hazards.

[0066] In one embodiment, the accommodating chamber 101 is provided with a pressure sensor. It is understandable that the pressure sensor can more accurately measure the pressure in the accommodating chamber 101. The user can determine the pressure setting value of the pressure regulating assembly 200 according to the scale, and can also install a pressure sensor in the accommodating chamber 101 as an auxiliary detection, achieving double protection and ensuring accuracy.

[0067] According to an embodiment of the present invention, please refer to Figure 2 and Figure 3The fixing member 220 is provided with an external thread (not marked in the figure), and the connecting member 213 is provided with an internal thread (not marked in the figure) matching the external thread. It can be understood that by matching the external thread of the fixing member 220 with the internal thread of the connecting member 213, a stable connection can be achieved. In addition, with such a setting, the outer diameter of the fixing member 220 is smaller than that of the connecting member 213, and the size of the fixing member 220 is more suitable for users to adjust by twisting.

[0068] In one embodiment, the valve body 210 is threadedly connected to the main body 100. It is understandable that the threaded connection can realize convenient assembly and disassembly and a stable connection between the valve body 210 and the main body 100.

[0069] In one embodiment, a first sealing ring 270 is disposed between the valve body 210 and the main body 100. It is understood that the first sealing ring 270 can ensure the sealing between the valve body 210 and the main body 100.

[0070] According to one embodiment of the present invention, the main body 100 includes a first end cap 110, a second end cap 130 and a mounting tube 120; a receiving cavity 101 is formed inside the mounting tube 120; the first end cap 110 is arranged at the first end of the mounting tube 120, the second end cap 130 is arranged at the second end of the mounting tube 120, the vent hole 102 is arranged at the first end cap 110, and the pressure regulating assembly 200 is arranged at the second end cap 130. It can be understood that the vent hole 102 and the pressure regulating assembly 200 are respectively arranged at the first end cap 110 and the second end cap 130 which are arranged opposite to each other, so that the structure is more reasonable, the installation and use of the equipment are convenient, and the utilization rate of the space is also improved.

[0071] It should be noted that the vent 201 of the pressure regulating assembly 200 will release steam at a relatively high temperature. The vent 102 and the pressure regulating assembly 200 are respectively arranged on the first end cover 110 and the second end cover 130 which are relatively arranged to ensure the safety of the test device and reduce the possibility of users being scalded.

[0072] According to an embodiment of the present invention, a receiving groove 111 is provided on the end surface of the first end cover 110 facing the receiving cavity 101 , the temperature measuring element 300 is provided on the first end cover 110 , and a probe of the temperature measuring element 300 is located in the receiving groove 111 .

[0073] It can be understood that the receiving groove 111 can protect the probe of the temperature measuring element 300 , provide a stable measurement environment for the probe of the temperature measuring element 300 , and improve the reliability and service life of the temperature measuring element 300 .

[0074] According to one embodiment of the present invention, a sealing buckle ring 400 is included, the sealing buckle ring 400 is passed through the vent hole 102, and the sealing buckle ring 400 is at least partially located in the receiving groove 111, and a limiting portion 420 is provided on one side of the sealing buckle ring 400 located in the receiving groove 111, and the limiting portion 420 abuts against the first end cover 110, and the sealing buckle ring 400 is provided with a mounting hole 410, and the mounting hole 410 is used to install the steam delivery component 500.

[0075] It is understandable that the limiting portion 420 can limit the position of the sealing buckle ring 400 in the receiving groove 111 to ensure its stability, and can also prevent the sealing buckle ring 400 from falling off or moving, thereby improving the reliability and safety of the equipment.

[0076] According to one embodiment of the present invention, the installation tube 120 is a transparent pressure tube. It is understandable that the transparent pressure tube is convenient for the user to intuitively observe the state of the steam breaking through the pressure. When the steam has not yet broken through the pressure of the pressure regulating component 200, the accommodating cavity 101 will form white mist-like steam. When the steam breaks through the pressure of the regulating component, the white mist disappears quickly. At this time, the steam temperature obtained by the temperature measuring component 300 can be regarded as the temperature of the steam breaking through the pressure of the human tissue and entering the target position.

[0077] Of course, the installation tube 120 is not limited to being a transparent pressure tube as a whole. The installation tube 120 may also be provided with a transparent observation window as long as it is convenient for the user to visually observe the internal conditions of the accommodating cavity.

[0078] According to one embodiment of the present invention, the temperature measuring element 300 is threadedly connected to the main body 100. It is understandable that the threaded connection can realize convenient assembly and disassembly and stable connection between the temperature measuring element 300 and the main body 100.

[0079] According to one embodiment of the present invention, a second sealing ring 310 is provided between the temperature measuring element 300 and the main body 100. It is understood that the second sealing ring 310 can ensure the sealing between the temperature measuring element 300 and the main body 100.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A testing device for a steam ablation device, characterized in that: include: A main body (100) having a receiving cavity (101) formed therein, the main body (100) being provided with a vent hole (102) and an opening (103), the vent hole (102) and the opening (103) both being in communication with the receiving cavity (101), the vent hole (102) being suitable for conveying steam to the receiving cavity (101); A pressure regulating component (200) is arranged at the opening (103), the pressure regulating component (200) being provided with an air leakage port (201), and when the gas pressure in the accommodating chamber (101) is not less than a set value of the pressure regulating component (200), the air leakage port (201) is connected to the opening (103); The pressure regulating assembly (200) comprises a valve body (210), a fixing member (220), a valve core (230) and an elastic member (240); the valve body (210) is arranged at the opening (103); a first end of the valve body (210) is connected to the main body (100); a connecting member (213) is arranged at the second end of the valve body (210); the first end of the valve body (210) and the second end of the valve body (210) are opposite to each other; the fixing member (220) is threadedly connected to the connecting member (213); an regulating cavity is arranged between the valve body (210) and the fixing member (220); the valve core (230) is at least partially installed in the regulating cavity; a side wall of the regulating cavity is provided with the air leakage port (201); the valve core (230) moves along the regulating cavity to open and close the air leakage port (201) and to cause the elastic member (240) to expand and contract; A limiting boss (231) is provided at the first end of the valve core (230); a mounting cavity (221) is formed on a side of the fixing member (220) facing the valve body (210); a first end of the elastic member (240) is located in the mounting cavity (221); and a second end of the elastic member (240) abuts against the limiting boss (231); A temperature measuring element (300) for obtaining the temperature of the accommodating cavity (101); The main body (100) comprises a first end cover (110), a second end cover (130) and a mounting tube (120); the mounting tube (120) is provided with the accommodating cavity (101); the first end cover (110) is arranged at the first end of the mounting tube (120), the second end cover (130) is arranged at the second end of the mounting tube (120), the vent hole (102) is arranged at the first end cover (110), and the pressure regulating assembly (200) is arranged at the second end cover (130); the mounting tube (120) is a transparent pressure tube; the end surface of the first end cover (110) facing the accommodating cavity (101) is provided with an accommodating groove (111); A sealing buckle (400), wherein the sealing buckle (400) is inserted into the vent hole (102), and the sealing buckle (400) is at least partially located in the receiving groove (111), and the sealing buckle (400) is provided with a mounting hole (410), and the mounting hole (410) is used to install a steam delivery component (500) of a steam ablation device.

2. The testing device for the steam ablation device according to claim 1, characterized in that: The first end of the valve core (230) is arranged in the regulating chamber, the second end of the valve core (230) extends out of the regulating chamber, and the second end of the valve core (230) is provided with a manual pull ring (250).

3. The testing device for the steam ablation device according to claim 1, characterized in that: A fluid channel (211) is formed in the valve body (210), the fluid channel (211) being connected to the opening (103), a step surface (212) being provided at the end of the fluid channel (211), and a valve core (230) seal being provided between the limiting boss (231) and the step surface (212); when the limiting boss (231) abuts against the step surface (212), the fluid channel (211) and the air vent (201) are disconnected; when the limiting boss (231) leaves the step surface (212), the fluid channel (211) and the air vent (201) are connected.

4. The testing device for the steam ablation device according to claim 1, characterized in that: The outer surface of the fixing member (220) is provided with a plurality of scales, and the closer the distance between the end of the fixing member (220) away from the connecting member (213) and the connecting member (213) is, the greater the air pressure value indicated by the corresponding scale.

5. The testing device for the steam ablation device according to claim 1, characterized in that: The valve body (210) and the main body (100) are threadedly connected, and / or, A first sealing ring (270) is provided between the valve body (210) and the main body (100).

6. The testing device of the steam ablation device according to any one of claims 1 to 5, characterized in that: The temperature measuring component (300) is arranged on the first end cover (110), and a probe of the temperature measuring component (300) is located in the containing groove (111).

7. The testing device for the steam ablation device according to claim 6, characterized in that: The sealing buckle ring (400) is provided with a limiting portion (420) on one side of the containing groove (111), and the limiting portion (420) abuts against the first end cover (110).

8. The testing device of the steam ablation device according to any one of claims 1 to 5, characterized in that: The temperature measuring element (300) and the main body (100) are threadedly connected, and / or, A second sealing ring (310) is provided between the temperature measuring element (300) and the main body (100).

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