CN117490906A - Test device of steam ablation equipment - Google Patents
Test device of steam ablation equipment Download PDFInfo
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- CN117490906A CN117490906A CN202311440562.3A CN202311440562A CN117490906A CN 117490906 A CN117490906 A CN 117490906A CN 202311440562 A CN202311440562 A CN 202311440562A CN 117490906 A CN117490906 A CN 117490906A
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- 238000002679 ablation Methods 0.000 title claims abstract description 47
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 24
- 230000000670 limiting effect Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 210000002307 prostate Anatomy 0.000 description 4
- 206010004446 Benign prostatic hyperplasia Diseases 0.000 description 3
- 208000004403 Prostatic Hyperplasia Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011298 ablation treatment Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 108010052285 Membrane Proteins Proteins 0.000 description 1
- 102000018697 Membrane Proteins Human genes 0.000 description 1
- 238000010317 ablation therapy Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000030833 cell death Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- LVYZJEPLMYTTGH-UHFFFAOYSA-H dialuminum chloride pentahydroxide dihydrate Chemical compound [Cl-].[Al+3].[OH-].[OH-].[Al+3].[OH-].[OH-].[OH-].O.O LVYZJEPLMYTTGH-UHFFFAOYSA-H 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000007674 radiofrequency ablation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 208000014001 urinary system disease Diseases 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B2018/044—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid
- A61B2018/048—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating the surgical action being effected by a circulating hot fluid in gaseous form
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Plasma & Fusion (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of steam ablation, and provides a testing device of steam ablation equipment, which comprises: the device comprises a main body, a pressure adjusting assembly and a temperature measuring piece. The main body is internally provided with a containing cavity, the main body is provided with a vent hole and an opening, the vent hole and the opening are communicated with the containing cavity, and the vent hole is suitable for conveying steam to the containing cavity; the pressure regulating assembly is arranged at the opening and is provided with a gas leakage port, and when the gas pressure of the accommodating cavity is not smaller than the set value of the pressure regulating assembly, the gas leakage port is communicated with the opening; the temperature measuring piece is used for acquiring the temperature of the accommodating cavity. The testing device of the steam ablation equipment can simulate the process of effectively releasing steam after the steam of the steam ablation equipment breaks through the pressure of human tissues, and a user can judge whether to obtain proper steam according to the pressure set value of the pressure adjusting component and the temperature obtained by the temperature measuring piece.
Description
Technical Field
The invention relates to the technical field of steam ablation, in particular to a testing device of steam ablation equipment.
Background
Prostatic hyperplasia is one of the most common urinary system diseases in men. Existing minimally invasive treatment technologies for benign prostatic hyperplasia diseases include radio frequency ablation, microwave ablation, electroporation ablation, water jet ablation, thermal steam ablation and the like. The thermal steam ablation treatment technology is to send a steam conduit into a target position, and the purpose of destroying and ablating pathological tissues is achieved by releasing high-temperature steam. The latent heat released during condensation of the high-temperature vapor can coagulate and denature cell membrane proteins of the lesion tissue, thereby causing cell death of the lesion. The damaged tissue will be absorbed by surrounding tissue within days or weeks thereafter, ultimately reaching the therapeutic goal. However, the inherent characteristics of human tissue can prevent the steam delivery assembly (such as a puncture needle) inserted therein from releasing steam, and the steam can be effectively released only after the pressure of the human tissue is broken through. If the pressure of the steam is smaller than the target pressure, the steam cannot be conveyed to the target position, if the pressure of the steam reaches the target pressure but the temperature of the steam is smaller than the target temperature, the steam not only does not have an ablation effect, but also can cause damage to a patient, if the temperature exceeds the target temperature, the patient can be unnecessarily damaged, and how to obtain proper steam is an existing industrial problem.
Disclosure of Invention
The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the invention provides a testing device of steam ablation equipment, which solves the difficulty that the prior art is difficult to obtain proper steam by simulating the process that steam breaks through the pressure of human tissues.
According to an embodiment of the invention, a test device of a steam ablation apparatus includes:
a main body, wherein a containing cavity is formed in the main body, the main body is provided with a vent hole and an opening, the vent hole and the opening are communicated with the containing cavity, and the vent hole is suitable for conveying steam to the containing cavity;
the pressure adjusting assembly is arranged at the opening and is provided with a gas leakage port, and when the gas pressure of the accommodating cavity is not smaller than the set value of the pressure adjusting assembly, the gas leakage port is communicated with the opening;
and the temperature measuring piece is used for acquiring the temperature of the accommodating cavity.
The testing device of the steam ablation equipment can simulate the process of effectively releasing steam after the steam of the steam ablation equipment breaks through the pressure of human tissues, and a user can judge whether to obtain proper steam according to the pressure set value of the pressure adjusting component and the temperature obtained by the temperature measuring piece.
According to one embodiment of the invention, the pressure regulating assembly comprises a valve body, a fixing piece, a valve core and an elastic piece, wherein the valve body is arranged at the opening, the valve body is detachably connected with the fixing piece, a regulating cavity is arranged between the valve body and the fixing piece, the valve core is at least partially arranged in the regulating cavity, the side wall of the regulating cavity is provided with the air leakage opening, and the valve core moves along the regulating cavity to open and close the air leakage opening and enable the elastic piece to stretch and retract.
According to one embodiment of the invention, the first end of the valve core is arranged in the adjusting cavity, the second end of the valve core extends out of the adjusting cavity, and the second end of the valve core is provided with a manual pull ring.
According to one embodiment of the invention, the first end of the valve core is provided with a limiting boss, a mounting cavity is formed on one side, facing the valve body, of the fixing piece, the first end of the elastic piece is located in the mounting cavity, and the second end of the elastic piece abuts against the limiting boss.
According to one embodiment of the invention, a fluid channel is formed in the valve body, the fluid channel is communicated with the opening, a step surface is arranged at the end part of the fluid channel, and a valve core sealing element is arranged between the limit boss and the step surface; when the limiting boss is abutted against the step surface, the fluid channel is disconnected with the air leakage port; when the limiting boss leaves the step surface, the fluid channel is communicated with the air leakage port.
According to one embodiment of the 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 part, the first end of the valve body is opposite to the second end of the valve body, and the fixing part is connected to the connecting part in a threaded manner.
According to one embodiment of the invention, the outer surface of the fixing piece is provided with a plurality of scales, and the closer the fixing piece is away from the end part of the connecting part and the distance between the connecting parts is, the larger the corresponding air pressure value marked by the scales is.
According to one embodiment of the invention, the threaded connection between the valve body and the body, and/or,
a first sealing ring is arranged between the valve body and the main body.
According to one embodiment of the invention, the body includes a first end cap, a second end cap, and a mounting tube; the accommodating cavity is formed in the mounting tube; the first end cover set up in the first end of installation pipe, the second end cover set up in the second end of installation pipe, the air vent set up in the first end cover, the pressure regulating subassembly set up in the second end cover.
According to one embodiment of the invention, the end face of the first end cover, which faces the accommodating cavity, is provided with an accommodating groove, the temperature measuring piece is arranged on the first end cover, and the probe of the temperature measuring piece is positioned in the accommodating groove.
According to one embodiment of the invention, the steam delivery device comprises a sealing snap ring, wherein the sealing snap ring penetrates through the vent hole and is at least partially positioned in the accommodating groove, a limiting part is arranged on one side of the sealing snap ring, which is positioned in the accommodating groove, and is abutted to the first end cover, and the sealing snap ring is provided with a mounting hole for mounting the steam delivery assembly.
According to one embodiment of the invention, the mounting tube is a transparent pressure tube.
According to one embodiment of the invention, the temperature sensing member is threadedly coupled to the body, and/or,
and a second sealing ring is arranged between the temperature measuring piece and the main body.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural view of a test device of a steam ablation apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a test device with a vent and an opening of a steam ablation apparatus disconnected, according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a test device for communication between a vent and an opening of a steam ablation apparatus according to an embodiment of the present invention;
reference numerals:
100. a main body; 101. a receiving chamber; 102. a vent hole; 103. an opening; 110. a first end cap; 111. a receiving groove; 120. installing a pipe; 130. a second end cap;
200. a pressure regulating assembly; 201. an air vent; 210. a valve body; 211. a fluid channel; 212. a step surface; 213. a connecting member; 220. a fixing member; 221. a mounting cavity; 230. a valve core; 231. a limit boss; 240. an elastic member; 250. a manual pull ring; 260. a spool seal; 270. a first seal ring;
300. a temperature measuring member; 310. a second seal ring;
400. a sealing clasp; 410. a mounting hole; 420. a limit part;
500. a vapor delivery assembly.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and may be, for example, fixed or removable, wherein the fixed connection may include an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Referring to fig. 1 to 3, a test device (hereinafter referred to simply as a test device) of a steam ablation apparatus according to the present invention includes a main body 100, a pressure adjusting assembly 200, and a temperature measuring member 300. The main body 100 is internally provided with a containing cavity 101, the main body 100 is provided with a vent hole 102 and an opening 103, the vent hole 102 and the opening 103 are communicated with the containing cavity 101, and the vent hole 102 is suitable for conveying steam to the containing cavity 101; the pressure regulating assembly 200 is arranged at the opening 103, the pressure regulating assembly 200 is provided with a gas leakage port 201, and when the gas pressure of the accommodating cavity 101 is not smaller than the set value of the pressure regulating assembly 200, the gas leakage port 201 of the pressure regulating assembly 200 is communicated with the opening 103; the temperature measuring member 300 is used for acquiring the temperature of the accommodating chamber 101.
The test device of the steam ablation device can simulate the process of effectively releasing steam after the steam of the steam ablation device breaks through the pressure of human tissues, and a user can judge whether to obtain proper steam according to the pressure set value of the pressure regulating assembly 200 and the temperature obtained by the temperature measuring piece 300. Suitable steam is understood to mean, among other things, that the steam reaches a pressure value that breaks through the body tissue and that the steam reaches a temperature value at which ablation therapy is carried out.
It will be appreciated that the vent 102 is used to connect the steam delivery assembly 500 of the steam ablation device so that steam output by the steam ablation device can enter the receiving cavity 101 of the body 100. In order to ensure the air tightness of the accommodating chamber 101, a sealing snap ring 400 (described later) may be disposed at the vent hole 102, and the sealing effect of the sealing snap ring 400 between the steam delivery assembly 500 and the vent hole 102 may ensure that the steam in the accommodating chamber 101 does not leak, thereby ensuring the accuracy of the measured steam pressure.
It will be appreciated that the opening 103 is used to connect the pressure regulating assembly 200, and that the pressure regulating assembly 200 can regulate the set point of the pressure, and that the vent 201 of the pressure regulating assembly 200 is in communication with the opening 103 only when the pressure of the steam in the receiving chamber 101 is not less than the set point, and that the vent 201 of the pressure regulating assembly 200 is not in communication with the opening 103 when the pressure of the steam is less than the set point.
It is understood that the temperature measuring member 300 includes a temperature sensor, wherein the temperature sensor may be one of a thermocouple, an infrared sensor, and a thermal resistance sensor.
In one embodiment, the temperature measurement member 300 includes a display module that can be used to display the measured temperature value. The display module can be a digital display screen or a pointer instrument.
The temperature measuring member 300 is disposed in the accommodating chamber 101, or may be disposed on the main body 100.
It should be noted that the pressure of the human tissue at different locations is different, and the pressure setting value of the pressure adjusting assembly 200 may be 0.8psi-1.2psi. The user may adjust the pressure set point of the pressure regulating assembly 200 as desired.
Taking the detection of the steam ablation device for treating the prostatic hyperplasia as an example, during the test, the steam delivery component of the steam ablation device is inserted into the test device, the steam ablation device is started after the air tightness of the test device is confirmed to be good, the steam ablation device generates steam, and the steam is released to the accommodating cavity 101 through the steam delivery component. With the steam released, when the pressure of the steam generated in the accommodating chamber 101 reaches a pressure of not less than the human tissue pressure of the prostate (1 psi), the air release port 201 of the pressure regulating assembly 200 communicates with the accommodating chamber 101, and the steam in the accommodating chamber 101 flows out through the air release port 201 to release the steam.
If the steam flows out through the air leakage port 201 to release the steam, and the steam temperature measured by the temperature measuring piece 300 is about 103 ℃, the steam generated by the device is enough to break through the pressure of the prostate tissue, the steam can be effectively released after the steam is inserted into the prostate tissue, the steam temperature meets the ablation requirement, and the effective ablation treatment can be performed.
If the steam flows out through the air leakage port 201 to release the steam, and the temperature of the steam measured by the temperature measuring piece 300 cannot reach 103 ℃, it is indicated that the steam generated by the steam ablation device cannot break through the tissue pressure to release the steam in the prostate, and the steam ablation device still needs to be debugged.
It should be noted that the steam temperature of about 103 ℃ during the effective steam release at a pressure of 1psi is only an example, and not a specific limitation of the present invention, and the testing device may be adapted to different pressures and different temperatures as desired.
It should be noted that the shorter the time for steam to break through the pressure of human tissue, the less damage is caused to the human body. According to the time for the steam delivery assembly 500 to release steam to the vent 201 of the pressure regulating assembly 200 and to communicate with the opening 103, a user can adjust the steam generating speed of the steam ablation apparatus, shorten the time for the steam to break through the pressure, and reduce the damage of the steam to the human body.
In one embodiment, the testing device is provided with a timer for counting the time that the vapor delivery assembly 500 releases vapor to the vent 201 of the pressure regulating assembly 200 to communicate with the opening 103. The user can adjust the steam ablation apparatus according to the timer visual test. Is convenient for the user to operate.
Referring to fig. 2, according to an embodiment of the present invention, the pressure adjusting assembly 200 includes a valve body 210, a fixing member 220, a valve core 230 and an elastic member 240, wherein the valve body 210 is disposed at the opening 103, the valve body 210 and the fixing member 220 are detachably connected, an adjusting cavity is disposed between the valve body 210 and the fixing member 220, the valve core 230 is at least partially installed in the adjusting cavity, a vent 201 is disposed on a sidewall of the adjusting cavity, and the valve core 230 moves along the adjusting cavity to open and close the vent 201 and expand and contract the elastic member 240.
It will be appreciated that the valve body 210 forms part of the body 100 of the pressure regulating assembly 200, and that the valve body 210 primarily serves to house and secure. The valve body 210 may be fixedly connected to the opening 103, and the fixed connection may include an integral connection manner or may be detachably connected to the opening 103. The fixing member 220 is mainly installed on the valve body 210 and can fix the valve core 230, so that stability and reliability of the valve core 230 are guaranteed, and meanwhile, necessary space is provided for 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 is movable along the adjustment chamber, and can control the opening and closing of the gas leakage port 201. The elastic member 240 is a functional part that works by using elasticity, and is telescopic, and mainly functions to provide a repulsive force, help the valve core 230 to return, and keep the pressure in the regulating chamber 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 may be disposed at any fixed position in the pressure adjusting assembly 200, and the valve core 230 may be displaced relative to the fixed position so as to allow the elastic member 240 to expand and contract. The elastic member 240 may be a spring or a flexible material having elasticity.
According to one embodiment of the present invention, a first end of the spool 230 is disposed in the adjustment chamber, a second end of the spool 230 protrudes from the adjustment chamber, and a second end of the spool 230 is provided with a manual pull ring 250. It will be appreciated that the steam in the receiving chamber 101 will condense into condensed water after use, which can cause the handling of the condensed water in the receiving chamber 101 to be cumbersome if the user is required to remove the main body 100 or remove the pressure regulating assembly 200, the manual pull ring 250 can allow the operator to conveniently pull the valve core 230, the valve core 230 can put the vent 201 in communication with the opening 103, and the condensed water can leave the testing device through the vent 201.
Of course, the manual pull ring 250 is merely used as an example, and is not a specific limitation of the present invention, and instead of providing the manual pull ring 250 at the second end of the spool 230, a connecting member may be provided at the second end of the spool 230, so long as the connecting member can facilitate the pulling operation of the spool 230 by the user.
In one embodiment, the sidewall of the valve body 210 is provided with a plurality of bleed ports 201, the bleed ports 201 being distributed along the axial direction of the valve body 210. It will be appreciated that the plurality of bleed holes may increase the efficiency of the drain, and that condensed water may exit the valve body 210 from the plurality of bleed holes when the user pulls the valve spool 230.
In one embodiment, the valve body 210 is provided with a water guiding surface inclined toward the gas leakage port 201, so that water of the connection passage can be rapidly discharged.
According to an embodiment of the present invention, the elastic member 240 is disposed in the adjusting cavity, 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 will be appreciated that the length of the resilient member 240 may be varied by adjusting the position of the spool 230, thereby adjusting the pressure setting.
Referring to fig. 2 and 3, a first end of the valve core 230 is provided with a limiting boss 231, 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. It can be appreciated that the mounting cavity 221 is formed on the side of the fixing member 220 facing the valve body 210, so that the elastic member 240 can be conveniently mounted, and the mounting cavity 221 has a limiting effect on the elastic member 240, so that the stability of the elastic member 240 is improved. The second end of the valve core 230 is provided with a limiting boss 231, which can form a limiting fit with the fixing piece 220 or other components to the elastic piece 240, so that the stability of the movement track of the elastic piece 240 in the adjusting cavity is ensured, and the reliability of the pressure adjusting assembly 200 is improved.
According to one embodiment of the invention, a fluid channel 211 is formed in the valve body 210, the fluid channel 211 is communicated with the opening 103, a step surface 212 is arranged at the end part of the fluid channel 211, and a valve core 230 sealing element is arranged between the limit boss 231 and the step surface 212; when the limit boss 231 abuts against the step surface 212, the fluid passage 211 and the air leakage port 201 are disconnected; when the limit boss 231 leaves the step surface 212, the fluid passage 211 communicates with the air release port 201.
It will be appreciated that the fluid passage 211 communicates with the opening 103 and that steam from the receiving chamber 101 may exert pressure on the spool 230 through the fluid passage 211. The step surface 212 is matched with the limit boss 231, when the limit boss 231 abuts against the step surface 212, the fluid channel 211 is closed, and fluid (including steam and condensed water) cannot circulate; when the limit boss 231 leaves the step surface 212, the fluid channel 211 is opened and fluid can leave the test device. The spool 230 seals between the limit boss 231 and the land 212 for securing sealing performance. The device can prevent fluid from leaking in the adjusting process, and improves the accuracy and reliability of adjustment.
In one embodiment, when the gas pressure in the accommodating chamber 101 is smaller than the set value of the pressure regulating assembly 200, the valve core 230 abuts against the fluid passage 211 of the valve body 210, the air leakage port 201 communicates with the mounting chamber 221, and the mounting chamber 221 is provided with a guide slope that is inclined toward the air leakage port 201. It will be appreciated that when a user pulls up the valve core 230, some condensed water may enter the installation cavity 221, and the condensed water may spontaneously flow through the air escape opening 201 without external force of the pressure regulating assembly 200 through the guide slope, preventing water from accumulating in the installation cavity 221.
Referring to fig. 2 and 3, according to an embodiment of the present invention, a first end of a valve body 210 is connected to a main body 100, a second end of the valve body 210 is provided with a connection part 213, the first end of the valve body 210 is opposite to the second end of the valve body 210, and a fixing member 220 is screw-coupled to the connection part 213. It can be appreciated that the fixing member 220 is screw-coupled to the coupling member 213, so that a stable coupling 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 apparatus. The fixing member 220 can be conveniently installed and disassembled, so that the difficulty of maintenance and replacement is reduced, and the working efficiency is improved. Meanwhile, the threaded connection facilitates adjusting the distance of the fixing member 220 with respect to the valve body 210, thereby adjusting the pressure set point of the pressure adjusting assembly 200.
In one embodiment, the outer surface of the fixing member 220 is provided with a plurality of graduations (not shown), and the closer the end of the fixing member 220 away from the connecting member 213 is to the connecting member 213, the greater the air pressure value indicated by the corresponding graduation. It can be appreciated that, by providing a plurality of scales on the outer surface of the fixing member 220, the magnitude of the air pressure value can be intuitively displayed, so that an operator can conveniently and rapidly know the pressure condition in the adjusting cavity, and the adjusting precision and reliability are improved. Through the marking of the scales, the excessive high pressure or the excessive low pressure caused by misoperation or improper adjustment can be avoided, and potential safety hazards are reduced.
In one embodiment, the receiving chamber 101 is provided with a pressure sensor. It will be appreciated that the pressure sensor may more accurately measure the pressure within the receiving chamber 101. The user can judge the pressure set point of the pressure regulating assembly 200 according to the scales, and can also carry a pressure sensor in the accommodating cavity 101 as auxiliary detection, so that double guarantees are realized, and the accuracy is ensured.
Referring to fig. 2 and 3, the fixing member 220 is provided with external threads (not shown) and the connection member 213 is provided with internal threads (not shown) matching the external threads according to an embodiment of the present invention. It will be appreciated that a secure connection may be achieved by the mating of the external threads of the mount 220 with the internal threads of the connecting member 213. In addition, in such an arrangement, the outer diameter of the fixing member 220 is smaller than the connecting member 213, and the size of the fixing member 220 is more suitable for the user to twist and adjust.
In one embodiment, the valve body 210 is threadably coupled to the body 100. It will be appreciated that a convenient disassembly and secure connection between the valve body 210 and the body 100 may be achieved by a threaded connection.
In one embodiment, a first seal 270 is disposed between the valve body 210 and the body 100. It will be appreciated that the first seal 270 may ensure tightness between the valve body 210 and the main body 100.
According to one embodiment of the present invention, the body 100 includes a first end cap 110, a second end cap 130, and a mounting tube 120; the installation tube 120 is internally formed with a receiving chamber 101; the first end cap 110 is disposed at a first end of the mounting tube 120, the second end cap 130 is disposed at a second end of the mounting tube 120, the vent 102 is disposed at the first end cap 110, and the pressure regulating assembly 200 is disposed at the second end cap 130. It can be appreciated that the vent 102 and the pressure regulating assembly 200 are disposed on the first end cap 110 and the second end cap 130, respectively, which are disposed opposite to each other, so that the structure is more reasonable, the installation and use of the apparatus are facilitated, and the space utilization is improved.
It should be noted that, the air leakage port 201 of the pressure adjusting assembly 200 may release steam with a higher temperature, and the air vent 102 and the pressure adjusting assembly 200 are respectively disposed on the first end cover 110 and the second end cover 130 that are disposed opposite to each other, so that the safety of the testing device can be ensured, and the possibility of scalding the user is reduced.
According to one embodiment of the present invention, the end surface of the first end cover 110 facing the accommodating cavity 101 is provided with an accommodating groove 111, the temperature measuring member 300 is disposed on the first end cover 110, and the probe of the temperature measuring member 300 is located in the accommodating groove 111.
It can be appreciated that the accommodating groove 111 can protect the probe of the temperature measuring member 300, provide a stable measuring environment for the probe of the temperature measuring member 300, and improve the reliability and service life of the temperature measuring member 300.
According to one embodiment of the invention, the steam delivery assembly comprises a sealing snap ring 400, the sealing snap ring 400 penetrates through the vent hole 102, the sealing snap ring 400 is at least partially positioned in the accommodating groove 111, a limiting part 420 is arranged on one side of the sealing snap ring 400 positioned in the accommodating groove 111, the limiting part 420 is abutted against the first end cover 110, the sealing snap ring 400 is provided with a mounting hole 410, and the mounting hole 410 is used for mounting the steam delivery assembly 500.
It can be appreciated that the limiting portion 420 can limit the position of the sealing ring 400 in the accommodating groove 111, ensure the stability thereof, and prevent the sealing ring 400 from falling off or moving, thereby improving the reliability and safety of the apparatus.
According to one embodiment of the present invention, the mounting tube 120 is a transparent pressure tube. It can be appreciated that the transparent pressure tube is convenient for the user to intuitively observe the state of the vapor breakthrough pressure, when the vapor does not breakthrough the pressure of the pressure regulating assembly 200, the containing cavity 101 forms a white fog vapor, when the vapor breaks through the pressure of the pressure regulating assembly, the white fog rapidly disappears, and the vapor temperature obtained by the temperature measuring member 300 can be regarded as the temperature of the vapor at the target position when the vapor breaks through the pressure of the human tissue.
Of course, the installation tube 120 is not limited to the case that the installation tube 120 is a transparent pressure tube as a whole, and the installation tube 120 may be provided with a transparent observation window, so long as a user can intuitively observe the internal condition of the accommodating cavity conveniently.
According to one embodiment of the present invention, the temperature sensing member 300 is threadedly coupled to the main body 100. It will be appreciated that the convenient disassembly and secure connection between the temperature sensing member 300 and the main body 100 can be achieved by a threaded connection.
According to an embodiment of the present invention, a second sealing ring 310 is provided between the temperature measuring member 300 and the main body 100. It is understood that the second sealing ring 310 can ensure tightness between the temperature measuring member 300 and the main body 100.
Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the invention, and not limiting. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and it is intended to be covered by the scope of the claims of the present invention.
Claims (13)
1. A test apparatus for a steam ablation device, comprising:
-a body (100) inside which a containment chamber (101) is formed, said body (100) being provided with a vent hole (102) and an opening (103), said vent hole (102) and said opening (103) being both in communication with said containment chamber (101), said vent hole (102) being adapted to deliver steam to said containment chamber (101);
the pressure adjusting assembly (200) is arranged on the opening (103), the pressure adjusting assembly (200) is provided with a gas leakage port (201), and when the gas pressure of the accommodating cavity (101) is not smaller than the set value of the pressure adjusting assembly (200), the gas leakage port (201) is communicated with the opening (103);
and the temperature measuring piece (300) is used for acquiring the temperature of the accommodating cavity (101).
2. The test device of a steam ablation apparatus according to claim 1, wherein 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 disposed in the opening (103), the valve body (210) and the fixing member (220) are detachably connected, and an adjusting cavity is provided between the valve body (210) and the fixing member (220), the valve core (230) is at least partially installed in the adjusting cavity, the side wall of the adjusting cavity is provided with the air leakage opening (201), and the valve core (230) moves along the adjusting cavity to open and close the air leakage opening (201) and enable the elastic member (240) to stretch.
3. The test device of a steam ablation apparatus according to claim 2, wherein a first end of the spool (230) is provided in an adjustment cavity, a second end of the spool (230) protrudes from the adjustment cavity, and a second end of the spool (230) is provided with a manual pull ring (250).
4. A test device of a steam ablation apparatus according to claim 3, wherein a first end of the valve core (230) is provided with a limit boss (231), 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 limit boss (231).
5. The test device of a steam ablation apparatus according to claim 4, wherein a fluid channel (211) is formed in the valve body (210), the fluid channel (211) is communicated with the opening (103), a step surface (212) is arranged at the end of the fluid channel (211), and a valve core (230) sealing element is arranged between the limit boss (231) and the step surface (212); when the limit boss (231) is abutted against the step surface (212), the fluid channel (211) is disconnected from the air leakage port (201); when the limit boss (231) leaves the step surface (212), the fluid channel (211) is communicated with the air leakage port (201).
6. The test device of a steam ablation apparatus according to claim 2, wherein a first end of the valve body (210) is connected to the main body (100), a second end of the valve body (210) is provided with a connecting member (213), the first end of the valve body (210) is opposite to the second end of the valve body (210), and the fixture (220) is screw-connected to the connecting member (213).
7. The test device of a steam ablation apparatus according to claim 7, wherein the outer surface of the fixture (220) is provided with a plurality of graduations, and the closer the end of the fixture (220) remote from the connecting member (213) is to the distance between the connecting member (213), the greater the corresponding air pressure value marked by the graduation.
8. Test device of a steam ablation apparatus according to claim 2, characterized in that the valve body (210) is screwed with the main body (100) and/or,
a first sealing ring (270) is arranged between the valve body (210) and the main body (100).
9. The test device of a steam ablation apparatus according to any of claims 1 to 8, wherein the body (100) comprises a first end cap (110), a second end cap (130) and a mounting tube (120); the accommodating cavity (101) is formed in the mounting tube (120); 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).
10. The test device of a steam ablation apparatus according to claim 9, wherein an end face of the first end cap (110) facing the accommodating cavity (101) is provided with an accommodating groove (111), the temperature measuring member (300) is provided to the first end cap (110), and a probe of the temperature measuring member (300) is located in the accommodating groove (111).
11. The test device of a steam ablation apparatus according to claim 10, comprising a sealing grommet (400), the sealing grommet (400) being arranged through the vent hole (102), and the sealing grommet (400) being at least partially located in the receiving groove (111), the sealing grommet (400) being provided with a limiting portion (420) on a side of the receiving groove (111), the limiting portion (420) being abutted to the first end cap (110), the sealing grommet (400) being provided with a mounting hole (410), the mounting hole (410) being used for mounting the steam delivery assembly (500).
12. A test arrangement for a steam ablation apparatus according to claim 9, wherein the mounting tube (120) is a transparent pressure tube.
13. Test device of a steam ablation apparatus according to claim 9, characterized in that the temperature measuring member (300) is screwed with the main body (100) and/or,
a second sealing ring (310) is arranged between the temperature measuring piece (300) and the main body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311440562.3A CN117490906A (en) | 2023-10-31 | 2023-10-31 | Test device of steam ablation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311440562.3A CN117490906A (en) | 2023-10-31 | 2023-10-31 | Test device of steam ablation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN117490906A true CN117490906A (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311440562.3A Pending CN117490906A (en) | 2023-10-31 | 2023-10-31 | Test device of steam ablation equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766765A (en) * | 1986-11-13 | 1988-08-30 | Westinghouse Electric Corp. | Multiphase valve testing |
| DE3927938A1 (en) * | 1989-08-24 | 1991-02-28 | Hubert Renner Labor Und Pruefg | Testing discharge pressure or container closures - by puncturing container in one chamber, and raising pressure until top blows in sealed chamber |
| US5172586A (en) * | 1990-10-26 | 1992-12-22 | Atlantic Richfield Company | System and method for determining vapor pressure of liquid compositions |
| US20040129054A1 (en) * | 2002-12-16 | 2004-07-08 | Columbus Equipment Co. | Apparatus and method for testing hydraulic pressure relief valves |
| CN1690487A (en) * | 2004-04-20 | 2005-11-02 | 瑞士卡瓦尼亚集团股份有限公司 | Flow regulating valve with flow state indicating unit especially adaptable for gas container |
-
2023
- 2023-10-31 CN CN202311440562.3A patent/CN117490906A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766765A (en) * | 1986-11-13 | 1988-08-30 | Westinghouse Electric Corp. | Multiphase valve testing |
| DE3927938A1 (en) * | 1989-08-24 | 1991-02-28 | Hubert Renner Labor Und Pruefg | Testing discharge pressure or container closures - by puncturing container in one chamber, and raising pressure until top blows in sealed chamber |
| US5172586A (en) * | 1990-10-26 | 1992-12-22 | Atlantic Richfield Company | System and method for determining vapor pressure of liquid compositions |
| US20040129054A1 (en) * | 2002-12-16 | 2004-07-08 | Columbus Equipment Co. | Apparatus and method for testing hydraulic pressure relief valves |
| CN1690487A (en) * | 2004-04-20 | 2005-11-02 | 瑞士卡瓦尼亚集团股份有限公司 | Flow regulating valve with flow state indicating unit especially adaptable for gas container |
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