CN117442295A - Pulse focus crushing device - Google Patents
Pulse focus crushing device Download PDFInfo
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- CN117442295A CN117442295A CN202311310514.2A CN202311310514A CN117442295A CN 117442295 A CN117442295 A CN 117442295A CN 202311310514 A CN202311310514 A CN 202311310514A CN 117442295 A CN117442295 A CN 117442295A
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22084—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance stone- or thrombus-dissolving
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
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- Mechanical Engineering (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention provides a pulse focus crushing device, which comprises a body part and an operation part which are detachably connected; the operation part comprises an elastic diaphragm, a coupling part, a liquid path pipe and a balloon, wherein one end of the coupling part is connected with the elastic diaphragm, and the other end of the coupling part is connected with the balloon through the liquid path pipe; the coupling part, the liquid path pipe and the balloon are communicated to form a liquid accommodating space for accommodating liquid, and the liquid accommodating space is sealed by the elastic diaphragm; the body part comprises an electromagnetic valve with an air inlet and an air outlet, a linear air flow channel is formed between the air outlet of the electromagnetic valve and the elastic diaphragm, and the air flow channel can exhaust through the air outlet; when high-pressure gas enters the air inlet, the electromagnetic valve is matched with the air outlet to control the generation of periodic high-pressure pulse gas. The pulse focus crushing device provided by the invention has the advantages of good safety, high working efficiency and the like.
Description
Technical Field
The invention relates to the field of medical appliances, in particular to a pulse focus crushing device.
Background
Intravascular calcified plaque is a plug created by the deposition of calcium ions and fat in the blood vessel on the inner wall of the blood vessel, which reduces or even blocks the flow of blood, thereby causing a series of ischemic diseases.
In the prior art, in order to solve a series of diseases caused by calcified plaque in blood vessel, medicines are generally adopted for treatment, such as medicines for stabilizing plaque and softening blood vessel commonly used in clinic, mainly lipid regulating medicines, platelet aggregation inhibiting medicines and traditional Chinese patent medicines for improving microcirculation and activating blood circulation to remove blood stasis are adopted, but most of the medicines only can inhibit the calcified plaque from further generating, and the problems are difficult to fundamentally solve. For this reason, in recent years, some new solutions have been proposed in the industry: the breaking device is used for extending into the focus to knock the calcified plaque, so that the calcified plaque is broken, and the dredging of the blocking position of the calcified plaque is further realized. If the ultrasonic electrode is conveyed to a treatment position, the high-voltage electrode is adopted to emit ultrasonic waves to impact and crush calcified plaque, but in the mode, if the voltage is too high, electric breakdown is easy to occur, so that personal safety is caused; if the voltage is low, the impact efficiency is too low.
Disclosure of Invention
Based on the above-mentioned current situation, the main object of the present invention is to provide a pulse type focus breaking device with safe use and high working efficiency.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a pulsed lesion shattering device comprising a body portion and an operating portion, the body portion being detachably connected with the operating portion;
the operation part comprises an elastic diaphragm, a coupling part, a liquid path pipe and a balloon, wherein one end of the coupling part is connected with the elastic diaphragm, and the other end of the coupling part is connected with the balloon through the liquid path pipe; the coupling part, the liquid path pipe and the balloon are communicated to form a liquid accommodating space for accommodating liquid, and the liquid accommodating space is sealed by the elastic diaphragm;
the body part comprises an electromagnetic valve with an air inlet and an air outlet, a linear air flow channel is formed between the air outlet of the electromagnetic valve and the elastic diaphragm, and the air flow channel can exhaust through the air outlet; when high-pressure gas enters the air inlet, the electromagnetic valve is matched with the air outlet to control the generation of periodic high-pressure pulse gas;
the single generation cycle of the high-pressure pulse gas includes a first period in which the solenoid valve is turned on, the exhaust port is closed, and the high-pressure gas advances along the gas flow passage and impacts the elastic diaphragm to deform the elastic diaphragm; in the second period, the electromagnetic valve is closed, the exhaust port is opened for exhausting, and the elastic diaphragm is reset.
Preferably, when the high-pressure pulse gas impinges on the elastic diaphragm, the maximum gas pressure in the gas flow channel is P, and P is more than or equal to 6atm and less than or equal to 30atm;
a maximum value of a volume change of the liquid containing space in a single generation cycle of the high-pressure pulse gas is 0.01ml;
the frequency of the high-pressure pulse gas is 5-20Hz.
Preferably, the radial dimension of the air flow channel is 8-15mm;
the coupling part is basically in a conical structure, the conical structure comprises a first end and a second end which are opposite and positioned on the extension line of the airflow channel, the first end is larger than the second end in size, the radial size of the first end is larger than 15mm, and the inclination angle of the inner wall of the first end is 20-50 degrees;
the radial dimension of the liquid path pipe is 0.6-1.2mm.
Preferably, in the first period, the flow rate of the high-pressure pulse gas in the gas flow passage is greater than 5m/s;
the maximum deformation amplitude of the elastic diaphragm in the axial direction of the airflow channel is 0.1-0.2mm, and the time period from deformation to resetting of the elastic diaphragm is less than 0.1s.
Preferably, the elastic diaphragm is a silica gel film, a PTFE film, a TPU film, a PET film or a PU film, and the thickness of the elastic diaphragm is 0.7-3mm.
Preferably, the opening and closing of the exhaust port are controlled according to the duration of a preset first period and second period; or controlling the opening and closing of the exhaust port according to the air pressure of the air flow channel.
Preferably, the body portion includes a first docking portion provided at an outer periphery of the airflow passage; the operating part comprises a second butting part matched with the first butting part; when the body part is connected with the operation part, the first butt joint part and the second butt joint part are in concave-convex tight fit to realize detachable connection;
the second butt joint part is provided with a through hole and a first thread structure, the through hole is used for the air flow channel to pass through, and the through hole is positioned in an area surrounded by the first thread structure when seen in the axial direction of the through hole;
the coupling part is characterized in that a second thread structure matched with the first thread structure is arranged on the outer surface of the coupling part, and when the first thread structure and the second thread structure are screwed, the edge part of the elastic diaphragm is clamped between the coupling part and the second butt joint part.
Preferably, one end of the coupling part, which is far away from the liquid path pipe, is provided with a concave structure, and the elastic diaphragm is stuck in the concave structure;
The second butt joint portion is provided with towards bellied bellying of coupling portion, first screw thread structure sets up the bellying periphery, first screw thread structure with when second screw thread structure accomplishes the screw thread and twists, the bellying will the elastic diaphragm butt in on the coupling portion.
Preferably, the operating part includes a housing fixedly provided at the periphery of the coupling part; at least one annular surface is arranged on the periphery of the first thread structure of the second butt joint part; the side wall of the shell is contacted with the at least one annular surface to form at least one sealing structure.
Preferably, the first butt joint part and the second butt joint part are provided with a first electric connection part and a second electric connection part which are matched with each other on the butt joint surface; when the first butt joint part and the second butt joint part are in butt joint, the first electric connection part and the second electric connection part are in contact to realize electric connection;
the body part comprises a control circuit board electrically connected with the first electric connection part, the operation part is provided with an operation handle fixedly connected with the liquid path pipe and a wire, one end of the wire is connected with the operation handle, and the other end of the wire penetrates through the space between the shell and the coupling part and penetrates through the second butt joint part to be connected with the second electric connection part;
The liquid path pipe and the lead wire which are positioned between the operating handle and the coupling part are coated together through an insulating layer;
the length of the liquid path pipe between the operating handle and the coupling part is 0.8-1.4m.
Preferably, the pulsed focus crushing device further comprises a control circuit board, an electric proportional valve, a pressure sensor, a manual ball valve and a ball valve state detector, wherein the electric proportional valve, the pressure sensor and the electromagnetic valve are all connected with the control circuit board, and the manual ball valve is arranged on the airflow channel and is connected with the control circuit board through the ball valve state detector; the electric proportional valve is connected with the electromagnetic valve and can provide the high-pressure gas with set air pressure; the pressure sensor may detect air pressure on the air flow passage between the solenoid valve and the manual ball valve; the ball valve state detector is used for detecting the working state of the manual ball valve and generating working state information to be fed back to the control circuit board;
the pulse type focus crushing device comprises a first working mode and a second working mode;
in the first working mode, the manual ball valve is closed, the ball valve state detector feeds back the working state information to the control circuit board, the control circuit board at least controls the electric proportional valve and the electromagnetic valve to enter a self-checking working mode, and whether one or more of the electric proportional valve, the electromagnetic valve, the manual ball valve and the air path channel is abnormal is judged through the air pressure detected by the pressure sensor;
In the second working mode, the manual ball valve is conducted, the ball valve state detector feeds back the working state information to the control circuit board, and the control circuit board at least controls the electric proportional valve and the electromagnetic valve to generate the periodical high-pressure pulse gas.
The pulse type focus crushing device provided by the invention generates periodic high-pressure pulse gas, the high-pressure pulse gas impacts the elastic diaphragm through the linear airflow channel, the energy loss is small, a larger acting force can be provided for the elastic diaphragm, the elastic diaphragm suddenly deforms, the liquid in the liquid accommodating space is compressed, namely, the high-pressure pulse gas is coupled with the liquid in the liquid accommodating space, the pulse energy of the high-pressure pulse gas is transmitted to the balloon through the liquid, and the pulse energy is directly transmitted to calcified plaque contacted with the balloon through the balloon, so that a certain impact force is provided for the calcified plaque. Because of a large number of air holes and fat tissues in the calcified plaque, the mechanical properties of the calcified plaque are seriously inconsistent, serious stress concentration occurs under the action of pulse energy, microcracks appear at the defect position in the calcified plaque due to the stress concentration, the microcracks gradually expand and are communicated with each other along with the increase of the impact times, and finally fatigue fracture of the calcified plaque occurs, and the calcified plaque is propped up by the balloon, so that the dredging of the calcified plaque blocking position is realized. The whole process is safe and reliable, the peripheral tissues are not damaged, and the success rate and quality of the subsequent balloon expansion or stent implantation operation can be improved.
The pulse focus crushing device comprises a body part and an operation part which are detachably connected, so that the operation of medical staff is facilitated. The body part can be used in a reciprocating manner, and the operation part comprising the elastic diaphragm is used as a disposable device, so that the stability of high-pressure pulse gas generation is ensured, and the working efficiency of the device is also ensured.
Other advantages of the present invention will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.
Drawings
Hereinafter, a preferred embodiment of a pulse type lesion crushing device according to the present invention will be described with reference to the accompanying drawings. In the figure:
fig. 1 is a schematic perspective view of a pulse type focus breaking device according to the present invention.
Fig. 2 and 3 are schematic perspective views of a body portion of a pulse type lesion crushing device according to the present invention at different angles.
Fig. 4 is a schematic partial perspective view of a pulse type lesion breaking device according to the present invention after removing a casing.
Fig. 5 is a schematic view showing a partial sectional structure of a pulse type lesion crushing device according to the present invention.
Fig. 6 is a schematic circuit diagram of a pulse type lesion breaking device according to the present invention.
Fig. 7 and 8 are schematic perspective views of an operation part of a pulse type lesion crushing device according to the present invention at different angles.
Fig. 9 is a schematic partial sectional view of an operation part included in the pulse type lesion crushing device according to the present invention.
Fig. 10 is a schematic plan view of an elastic diaphragm of an operation portion included in a pulse type lesion crushing device according to the present invention.
Detailed Description
The present invention is described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in order to avoid obscuring the present invention, and in order to avoid obscuring the present invention, well-known methods, procedures, flows, and components are not presented in detail.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, "distal" and "proximal" are with respect to the operator of the apparatus/device/means, proximal referring to the end proximal to the operator, and distal referring to the end distal from the operator, i.e. the end extending into the patient is the distal end and the end located outside the body proximal to the operator if it extends only partially into the patient is the proximal end for the same component.
The present invention provides a pulsed lesion shattering device suitable for use on a variety of lesions requiring shattering procedures, including but not limited to intravascular calcified plaque. The present invention is described with respect to intravascular calcified plaque as an example, and it should be understood that this is not a limitation of the application of the pulse type lesion shattering device.
The invention provides a pulse type focus crushing device, which comprises a body part and an operation part, wherein the body part is detachably connected with the operation part.
The operation part comprises an elastic diaphragm, a coupling part, a liquid path pipe and a balloon, wherein one end of the coupling part is connected with the elastic diaphragm, and the other end of the coupling part is connected with the balloon through the liquid path pipe; the coupling part, the liquid path pipe and the balloon are communicated inside to form a liquid accommodating space for accommodating liquid, and the liquid accommodating space is sealed by the elastic diaphragm.
The body part comprises an electromagnetic valve with an air inlet and an air outlet, a linear air flow channel is formed between the air outlet of the electromagnetic valve and the elastic diaphragm, and the air flow channel can exhaust through the air outlet; when high-pressure gas enters the air inlet, the electromagnetic valve is matched with the air outlet to control the generation of periodic high-pressure pulse gas.
The single generation cycle of the high-pressure pulse gas includes a first period in which the solenoid valve is turned on, the exhaust port is closed, and the high-pressure gas advances along the gas flow passage and impacts the elastic diaphragm to deform the elastic diaphragm; in the second period, the electromagnetic valve is closed, the exhaust port is opened for exhausting, and the elastic diaphragm is reset.
The pulse type focus crushing device provided by the invention generates periodic high-pressure pulse gas, the high-pressure pulse gas impacts the elastic diaphragm through the linear airflow channel, the energy loss is small, a larger acting force can be provided for the elastic diaphragm, the elastic diaphragm suddenly deforms, the liquid in the liquid accommodating space is compressed, namely, the high-pressure pulse gas is coupled with the liquid in the liquid accommodating space, the pulse energy of the high-pressure pulse gas is transmitted to the balloon through the liquid, and the pulse energy is directly transmitted to calcified plaque contacted with the balloon through the balloon, so that a certain impact force is provided for the calcified plaque. Because of a large number of air holes and fat tissues in the calcified plaque, the mechanical properties of the calcified plaque are seriously inconsistent, serious stress concentration occurs under the action of pulse energy, microcracks appear at the defect position in the calcified plaque due to the stress concentration, the microcracks gradually expand and are communicated with each other along with the increase of the impact times, and finally fatigue fracture of the calcified plaque occurs, and the calcified plaque is propped up by the balloon, so that the dredging of the calcified plaque blocking position is realized. The whole process is safe and reliable, the peripheral tissues are not damaged, and the success rate and quality of the subsequent balloon expansion or stent implantation operation can be improved.
The pulse focus crushing device comprises a body part and an operation part which are detachably connected, so that the operation of medical staff is facilitated. The body part can be used in a reciprocating manner, and the operation part comprising the elastic diaphragm is used as a disposable device, so that the stability of high-pressure pulse gas generation is ensured, and the working efficiency of the device is also ensured.
Referring to fig. 1, an embodiment of the present invention provides a pulse type lesion crushing device 1, where the pulse type lesion crushing device 1 includes a body portion 10 and an operation portion 20, and the body portion 10 and the operation portion 20 are detachably connected. In some application scenarios, the body operating portion 20 may be used back and forth multiple times, the operating portion 20 belonging to a single-use apparatus. Before use, the operating portion 20 is subjected to a sterilization operation, such as sterilization with ethylene oxide.
Referring to fig. 2 to 4, as an embodiment, the body portion 10 includes a housing 18, an electric proportional valve 11, a solenoid valve 12, an exhaust port (not numbered), a gas path pipe, a manual ball valve 14, and a pressure sensor 16, and the electric proportional valve 11, the solenoid valve 12, the exhaust port, the gas path pipe, the manual ball valve 14, and the pressure sensor 16 are completely or partially accommodated in the housing 18, that is, each component is at least partially accommodated in the housing 18.
The air path pipes include a first air path pipe 171, a second air path pipe 172 and a third air path pipe 173, the electric proportional valve 11, the electromagnetic valve 12 and the manual ball valve 14 all include an air inlet and an outlet air (it is understood that in the orientation of fig. 4, the air inlet is located at the left of the air outlet), the air outlet of the electric proportional valve 11 is connected with the air inlet of the electromagnetic valve 12 through the first air path pipe 171, the air outlet of the electromagnetic valve 12 is connected with the air inlet of the manual ball valve 14 through the second air path pipe 172, and the air outlet of the manual ball valve 14 is connected with the third air path pipe 173. The pressure sensor 16 may sense the air pressure in the second air channel 172 (including the space communicated with the second air channel 172), and as an embodiment, a fourth air channel 174 is provided, one end of the fourth air channel 174 is connected to the second air channel 172, and the other end is connected to the pressure sensor 16, and the fourth air channel 174 is communicated with the second air channel 172, so that the pressure sensor 16 may sense the air pressure in the second air channel 172. The exhaust port communicates with the gas flow passage from the gas outlet of the solenoid valve 12 to the operation portion 20, and the gas in the gas flow passage can be exhausted to reduce the internal gas pressure thereof. The high-pressure gas source is input from the gas inlet of the electric proportional valve 11, the electric proportional valve 11 outputs high-pressure gas with set gas pressure after processing the high-pressure gas source, the high-pressure gas is conveyed to the electromagnetic valve 12 through the first gas pipeline 171, the electromagnetic valve 12 and the manual ball valve 14 are in a conducting state and a cutting-off state, the electromagnetic valve 12 is opened, the gas outlet is closed in a cutting-off state of the manual ball valve 14, the high-pressure gas is conveyed to the position of the manual ball valve 14, and the pressure sensor 16 can detect the gas pressure to determine whether the device leaks or not. In the on state of the manual ball valve 14, the solenoid valve 12 is switched in both on and off states to generate a high-pressure pulse gas. Wherein, in the conduction state of the electromagnetic valve 12, the exhaust port is closed, and the high-pressure gas passes through the second gas path pipe 172 and the manual ball valve 14 and is discharged from the third gas path pipe 173; in the closed state of the solenoid valve 12, the exhaust port is opened, and the high-pressure gas in the second gas path tube 172 is discharged.
In the present invention, the air inlet and the air outlet of the solenoid valve 12, the second air passage 172, the air inlet and the air outlet of the manual ball valve 14, and the third air passage 173 are positioned on the same straight line, so that the path of the air is linear, and energy loss during the air transmission process is avoided. More preferably, the air inlet and the air outlet of the electric proportional valve 11, the first air passage 171, the air inlet and the air outlet of the electromagnetic valve 12, the second air passage 172, the air inlet and the air outlet of the manual ball valve 14 and the third air passage 173 are all positioned on the same straight line, and the high-pressure air pressure basically has no energy loss in the transmission process.
With continued reference to fig. 2 to 5, as an embodiment, the electric proportional valve 11 includes an air pressure adjusting knob 111, the air pressure adjusting knob 111 penetrates through the housing 18 and is located outside the housing 18, and a user can adjust the air pressure of the high-pressure air output by the air outlet of the electric proportional valve 11 through the air pressure adjusting knob 111, so as to meet the requirements of the device for different air pressures. The housing 18 is provided with a first through hole 181 corresponding to the position of the air inlet of the electro proportional valve 11, and the air inlet of the electro proportional valve 11 is exposed to the external space at the position of the first through hole 181 so as to be convenient for accessing a high-pressure gas source.
As an example, the electro proportional valve 11 outputs a high pressure gas at a pressure of P,6 atm.ltoreq.p.ltoreq.30 atm (normal atmospheric pressure), and further, in the case of lowering the pressure and securing the acquisition of a high pressure pulse gas, preferably 12 atm.ltoreq.p.ltoreq.20 atm; further, 12 atm.ltoreq.P < 15atm, or 16 atm.ltoreq.P < 18atm, and still further, the gas pressure of the high-pressure gas may be specifically 12atm, 13atm, 14atm, 16atm, 17atm, 18atm or 19atm.
As an embodiment, the air pressure of the high-pressure air output by the electric proportional valve 11 comprises multiple steps, and a user can select a proper air pressure step, for example, the electric proportional valve 11 outputs the high-pressure air comprising two steps, one step is 13.8atm, and the other step is 17.8atm, it is understood that the specific air pressure value corresponding to the steps can be adjusted, preferably, the air pressure difference between different steps is greater than 2.5atm, and more preferably, the air pressure difference between different steps is greater than 3.5atm.
As an example, the solenoid valve 12 is specifically a high-frequency solenoid valve, and it is understood that the type of the solenoid valve 12 is not limited as long as the switching on and off of the gas can be achieved under the control of an electric signal.
As an example, a vent is integrated into the solenoid valve 12, which vents gas at the vent of the solenoid valve 12. As another example, the vent is not integrated with the solenoid valve 12, and the vent may be a separate structure from the solenoid valve 12.
As an embodiment, the opening and closing of the exhaust port is controlled according to a preset duration of the first period and the second period. If the duration of the first period and the duration of the second period are set, in a single period, the exhaust port is opened when the duration of the first period is reached, and the exhaust port is closed when the duration of the second period is reached.
As one embodiment, the opening and closing of the exhaust port is controlled according to the air pressure of the air flow passage. For example, the pressure sensor 16 detects the air pressure in the air flow channel, and when the detected air pressure value is smaller than the preset air pressure value, the electromagnetic valve 12 is turned on, and the air outlet is closed, namely, the first period of the single high-pressure pulse gas generation cycle is completed; when the detected air pressure value is larger than the preset air pressure value, the electromagnetic valve 12 is closed, and the air outlet is opened, so that the second period of the single high-pressure pulse gas generation period is completed; the preset air pressure value is the P. Therefore, the device can still ensure the impact effect on calcified plaque under different use environments.
As one example, the manual ball valve 14 includes a ball valve body 141 and a manual portion 142, the manual portion 142 being connected to the ball valve body 141, and the manual portion 142 being operable by a user to adjust the manual ball valve 14 to be turned on or off. The manual portion 142 is exposed outside the housing 18 through the housing 18 for convenience of user operation. The manual ball valve 14 is also connected with a ball valve state detector 15 (reference numeral see fig. 7), and the ball valve state detector 15 can detect the conducting state of the manual ball valve 14 and generate working state information, wherein the working state information is used for indicating the manual ball valve 14 to be opened or closed, and it can be understood that in the invention, the conducting and opening meanings of the ball valve or the electromagnetic valve are consistent, and the closing and opening meanings are consistent.
It can be understood that the manual ball valve 14 is a mechanical ball valve, so that a user can perform self-inspection on the device at any time according to requirements, and the safety and reliability of each part of the device are ensured. As a variant, the manual ball valve 14 may be replaced by another non-mechanical ball valve, for example, by self-checking by a programmed control device.
As an embodiment, the first air duct 171 may be formed by a single-section pipe or may be formed by splicing a plurality of sections of pipes. The second air channel pipe 172 may be formed by a single-section pipe or may be formed by splicing a plurality of sections of pipes. The third air channel 173 may be formed by a single-section pipe or may be formed by splicing multiple sections of pipes.
As an embodiment, the pipe diameters of the first air pipe 171, the second air pipe 172 and the third air pipe 173 may be the same or different. The pipe diameters of the first air pipe 171, the second air pipe 172, and the third air pipe 173 may be constant or variable, respectively.
In the embodiment that the pipe diameters of the first air pipe 171, the second air pipe 172 and the third air pipe 173 are constant and the pipe diameters are consistent, the pipe diameters may be 8-15mm, and may be 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm. Further, the pipe diameter is 8-12mm. Under the pipe diameter parameters, the high-pressure gas is smoothly transmitted, the energy is concentrated, and the pulse energy can be better provided.
In the embodiment in which the diameters of the first air channel pipe 171, the second air channel pipe 172 and the third air channel pipe 173 are changed, that is, in the embodiment in which the diameters of the first air channel pipe 171, the second air channel pipe 172 and the third air channel pipe 173 at least comprise two pipe diameters, the pipe diameters may be 8-15mm. As an embodiment, the third air channel 173 includes at least two portions with different pipe diameters: the first tubing segment 1731 and the second tubing segment 1732 preferably have a radial dimension difference between the portion of the first tubing segment 1731 and the second tubing segment 1732 of 1-3mm, further 1.2-2mm. As a specific example, the radial dimension of the first tube segment 1731 is 10-15mm, or 10-12mm, or 12-14mm, specifically, the radial dimension of the first tube segment 1731 is 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm. The radial dimension of the second tube segment 1732 is 8-12mm, or 8-10mm, or 10-12mm. In particular, the radial dimension of the second pipe segment 1732 is 8mm, 9mm, 10mm, 11mm or 12mm. The interaction of the first tubing segment 1731 with the second tubing segment 1732 facilitates the provision of high pressure pulsed gas with concentrated energy.
As an example, a display 19 is fixed to the housing 18 for the user to observe the operating parameters of the device. The display screen can be a touch display screen, and a user can execute a set function through the touch operation indicating device.
As one example, one or more buttons 101 are secured to the housing 18 for operation by a user. The button 101 may be a power switch button 101 or the like.
As an embodiment, a support structure 184 is further disposed inside the housing 18, and the support structure 184 is configured to support one or more of the first air channel 171, the second air channel 172, and the third air channel 173.
Referring to fig. 6, a control circuit board 100 is disposed inside a housing 18, an electric proportional valve 11, an electromagnetic valve 12, a pressure sensor 16, and a button 101 are all connected to the control circuit board 100, and a manual ball valve 14 is connected to the control circuit board 100 through a ball valve state detector 15. The electro proportional valve 11 has a pressure detecting function, and can return the pressure value of the processed high-pressure gas to the control circuit board 100.
As an embodiment, the pulsed lesion crushing device 1 comprises a first operation mode and a second operation mode. The pulse type focus breaking device 1 enters the second working mode after executing the first working mode, as a variant, the second working mode may also be directly entered in some cases, the first working mode may not be executed, or the first working mode may be executed according to a set time, for example, the first working mode is executed once a week, and the user may also determine whether to execute the first working mode according to the use condition.
The external power supply provides electric energy for the device, the high-pressure gas source is connected to the air inlet of the electric proportional valve 11, and after the external power supply is connected through the power switch button 101, the pulse focus breaking device 1 can enter a first working mode or a second working mode.
In the first operation mode, the user operates the manual portion 142 of the manual ball valve 14 to close the manual ball valve 14, the ball valve state detector 15 sends the operation state information generated by detection to the control circuit board 100, and the control circuit board 100 determines that the manual ball valve 14 is closed according to the operation state information, so that the control body 10 enters a self-checking operation mode, and the self-checking operation mode mainly detects whether the electric proportional valve 11, the electromagnetic valve 12, the exhaust port, the air flow channel and the like are abnormal, if the air leakage exists, the air cannot be exhausted and the like. As an embodiment, in the self-checking operation mode, the electro-proportional valve 11 provides high-pressure gas with a set air pressure during a preset period, the electromagnetic valve 12 is turned on, the air outlet is closed, the pressure sensor 16 detects the air pressure and returns the air pressure parameter to the control circuit board 100, and the control circuit board 100 can determine whether one or more of the electromagnetic valve 12, the air outlet, the electro-proportional valve 11, the manual ball valve 14 and the air flow channel is abnormal according to the air pressure parameter returned by the pressure sensor 16. As another example, the control circuit board 100 may determine whether one or more of the solenoid valve 12, the exhaust port, the electro proportional valve 11, the manual ball valve 14, and the air flow passage is abnormal according to the air pressure parameter of the high pressure air supplied from the electro proportional valve 11 and the air pressure parameter returned from the pressure sensor 16. After the foregoing steps are performed, the control circuit board 100 further opens the exhaust port, and determines whether the exhaust port is properly exhausted according to the air pressure parameter returned from the pressure sensor 16.
In the second operation mode, the user operates the manual part 142 of the manual ball valve 14 to open the manual ball valve 14, the ball valve state detector 15 sends the operation state information generated by detection to the control circuit board 100, and the control circuit board 100 determines that the manual ball valve 14 is opened according to the operation state information, so that at least the electric proportional valve 11, the electromagnetic valve 12 and the exhaust port are controlled to cooperate with each other to generate periodic high-pressure pulse gas. Specifically, the single high-pressure pulse gas generation cycle includes a first period in which the solenoid valve 12 is on and the exhaust port is closed, and a second period; in the second period, the solenoid valve 12 is closed, and the exhaust port is opened to exhaust.
As an example, in the case where a high-pressure gas of a set gas pressure can be supplied from the outside, the electro proportional valve 11 may be omitted.
As an example, the manual ball valve 14 and the ball valve state detector 15 may be omitted, and in this example, the second air passage 172 and the third air passage 173 are communicated.
With continued reference to fig. 2, as an embodiment, the body portion 10 includes a first docking portion 182 disposed at the periphery of the airflow channel, and the first docking portion 182 is configured to dock with the operating portion 20 to achieve a connection between the two portions.
Referring to fig. 7 to 9, the operation portion 20 includes an elastic diaphragm 21, a coupling portion 22, a liquid path tube 23 and a balloon 24, one end of the coupling portion 22 is connected to the elastic diaphragm 21, the other end is connected to the balloon 24 through the liquid path tube 23, the coupling portion 22, the liquid path tube 23 and the balloon 24 are hollow structures, the interiors of the coupling portion 22, the liquid path tube 23 and the balloon 24 are communicated to form a liquid accommodating space a accommodating liquid, the liquid accommodating space a is closed by the elastic diaphragm 21 at one end of the coupling portion 22 away from the liquid path tube 23, and it is understood that the liquid accommodating space a can be communicated with an external space at one end of the coupling portion 22 away from the liquid path tube 23 when the elastic diaphragm 21 is not fixed on the coupling portion 22. When the operation portion 20 is connected with the body portion 10, the elastic diaphragm 21 is disposed at an end of the third air passage tube 173 remote from the manual ball valve 14, a linear air flow passage is formed between the elastic diaphragm 21 and the air outlet of the solenoid valve 12, and thus the solenoid valve 12 is matched with the air outlet, the control of generating periodic high-pressure pulse gas can impinge on the elastic diaphragm 21, specifically, in a first period of a single high-pressure pulse gas generation cycle, the high-pressure gas advances along the air flow passage and impinges on the elastic diaphragm 21 to deform the elastic diaphragm 21. During the second period of the single generation cycle of the high-pressure pulse gas, the exhaust port is exhausted and the elastic diaphragm 21 is reset. During the deformation and resetting process of the elastic diaphragm 21, the liquid in the liquid accommodating space a is compressed, the high-pressure pulse gas is coupled with the liquid in the liquid accommodating space a, the pulse energy of the high-pressure pulse gas is transmitted to the balloon 24 through the liquid, and the pulse energy is directly transmitted to the calcified plaque contacted with the balloon 24 through the balloon, so that a certain impact force is given to the calcified plaque. The periodic high pressure pulse of gas provides a periodic impact force to progressively break up calcified plaque.
As an example, the maximum value of the volume change of the liquid containing space a is 0.01ml, i.e., the volume change in the liquid containing space is 0.01ml or less in a single generation cycle of the high-pressure pulse gas. It is understood that the volume change of the liquid containing space a is the largest when the elastic diaphragm 21 is moved to the maximum position, and the maximum value of the volume change may be 0.008 to 0.01ml, and may be 0.008 to 0.009ml.
As an example, the high pressure pulse gas is generated at a frequency of 5-20Hz. Under the conditions of considering the crushing effect, the equipment requirement and the safety, the preferable frequency is 10-20Hz, and further can be 12-20Hz, 16-19Hz and 16-18Hz.
As an example, the liquid contained in the liquid containing space a is physiological saline and/or a developer.
As an example, the elastic membrane 21 may be elastically deformed under stress, and when the force is removed, the deformation disappears and the elastic membrane is restored. The elastic membrane 21 may be a silicone film, a PTFE film (polytetrafluoroethylene), a TPU film (thermoplastic polyurethane), a PET film (polyethylene terephthalate), or a PU film (polyurethane), in particular.
As an example, the elastic membrane 21 has a thickness of 0.7-3mm.
As an example, the maximum deformation amplitude of the elastic diaphragm 21 in the axial direction of the air flow passage is 0.1-0.2mm, and the length of time from deformation to restoration of the elastic diaphragm 21 is less than 0.1s.
As one example, the coupling portion 22 is substantially in a tapered configuration that includes first and second opposite ends that lie on an elongated line of the airflow path, the first end being sized larger than the second end. The design of the conical structure is beneficial to gathering pulse energy and reducing the loss of the pulse energy in the propagation process.
As an example, the radial dimension of the first end of the coupling portion 22 is greater than 15mm, and the radial dimension of the second end of the coupling portion 22 substantially coincides with the radial dimension of the liquid path tube 23 by 0.6-1.2mm. The inner wall of the coupling portion 22 has an inclination angle of 20-50 deg., it being understood that the radial dimension of the first end of the coupling portion 22, i.e. the end dimension of the liquid receiving space; the inclination angle of the inner wall refers to the angle between the inner wall of the coupling portion 22 in contact with the liquid and the axis of the coupling portion 22. Under the parameters, the propagation loss of pulse energy is small, and the generation of echo is avoided.
As an example, the first end of the coupling portion 22 preferably has a radial dimension of 15-20mm, but may also be 15-18mm, or 16-18mm, or 18-20mm, and may be 15mm, 16mm, 17mm, or 18mm, in particular. The radial dimension of the second end may also be 1.2-1.6mm,1-1.5mm, or 1.4-1.8mm, and may specifically be 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm.
As an example, the inclination angle of the inner wall of the coupling portion 22 may be 20 ° -45 °, or 30 ° -45 °, and specifically may be 20 °, 25 °, 30 °, 35 °, 40 °, or 45 °.
As an example, the radial dimension ratio of the pipe diameter of the second pipe segment 1732 to the first end of the coupling 22 is 1: (2-6), and further may be 1 (4-6). At this ratio, the coupling effect between the high-pressure pulse gas and the liquid is good.
As an example, the pipe diameter of the second pipe section 1732 is 8-10mm, the radial dimension of the first end of the coupling portion 22 is 15-18mm, when the inclination angle of the inner wall of the coupling portion 22 is 30 ° -45 °, the coupling effect between the high-pressure pulse gas and the liquid is good, and the propagation loss of the pulse energy is very small, and almost no echo is generated.
As an example, in the first period, the flow rate of the high-pressure pulse gas in the gas flow passage is greater than 5m/s, so that the elastic diaphragm 21 can be suddenly deformed when the high-pressure pulse gas impinges on the elastic diaphragm 21.
As an example, the radial dimension of the liquid path tube 23 is constant, 0.6-1.2mm. Further, the radial dimension thereof may be 0.6 to 1mm, or 0.6 to 0.8mm, and may be specifically 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm.
As an example, the balloon 24 is non-telescoping, so that the force applied to the calcified plaque via the balloon 24 is pulsed after coupling the high pressure pulsed gas of lower pressure at the elastic membrane 21, which can form an effective impact on the calcified plaque. It will be appreciated that the balloon 24 may have different gauge sizes, alternatively the balloon 24 is larger than the size of the calcified plaque.
As an example, the operation portion 20 includes a second docking portion 25 that mates with the first docking portion 182, and when the body portion 10 and the operation portion 20 are connected, the first docking portion 182 and the second docking portion 25 are concavely and convexively fitted to achieve detachable connection. Specifically, the first abutting portion 182 and the second abutting portion 25 are annular structures with different radial dimensions, the outer diameter dimension of the first abutting portion 182 is equal to the inner diameter dimension of the second abutting portion 25, and tight fit can be achieved by inserting the first abutting portion 182 into the second abutting portion 25. The structures of the first butt joint 182 and the second butt joint 25 are exchangeable with each other.
It will be appreciated that the specific structure of the first docking portion 182 and the second docking portion 25 is not limited, so long as the first docking portion and the second docking portion cooperate to achieve detachable connection.
As an example, the second docking portion 25 is provided with a second through hole 252 through which the air flow passage (the third air passage pipe 173) passes, and it is considered that the third air passage pipe 173 and the second through hole 252 are part of the first docking portion 182 and the second docking portion 25, respectively. The second abutting portion 25 is provided with a second thread structure 222 at an end thereof remote from the first abutting portion 182, and the second through hole 252 is located in an area surrounded by the second thread structure 222 as seen in an axial direction of the second through hole 252. The coupling portion 22 is provided on an outer surface thereof with a second screw structure 222 matched with the first screw structure 251, and the coupling portion 22 and the second butt joint portion 25 are fixedly connected through the first screw structure 251 and the second screw structure 222. When the first screw structure 251 and the second screw structure 222 complete the screw-threaded connection, the edge portion of the elastic diaphragm 21 is clamped between the coupling portion 22 and the second abutting portion 25.
As an example, the second docking portion 25 and the coupling portion 22 may be integrally formed.
As an embodiment, an end of the coupling portion 22 away from the liquid path tube 23 is provided with a concave structure 221, the elastic diaphragm 21 is adhered in the concave structure 221, the second abutting portion 25 is provided with a convex portion 253 protruding toward the coupling portion 22, the second thread structure 222 is arranged on the periphery of the convex portion 253, and when the first thread structure 251 and the second thread structure 222 are screwed, the convex portion 253 abuts the elastic diaphragm 21 on the coupling portion 22. It will be appreciated that abutment of the boss 253 with the resilient diaphragm 21 forms a seal. The screwing-in of the first screw structure 251 and the second screw structure 222 forms another sealing structure preventing the leakage of the high-pressure pulse gas.
Referring to fig. 10, the elastic diaphragm 21 includes a fixing portion 211 and a deformation portion 212, the fixing portion 211 is located at the periphery of the deformation portion 212, and a distance between the elastic diaphragm 21 and a component of the deformation portion 212 on a side facing away from the liquid path tube 23 is 2-3mm. As an example, the dimension of the space corresponding to the distance in the radial direction is equal to the dimension of the first end of the coupling portion 22.
As an example, the third air passage 173 penetrates the second through hole 252 and protrudes toward the end of the coupling portion 22 with respect to the second through hole 252, and the distance between the end of the third air passage 173 remote from the solenoid valve 12 and the elastic diaphragm 21 is 2-3mm. When the elastic diaphragm 21 is restored, the released compressed liquid will exert a force on the elastic diaphragm 21, so that the elastic diaphragm 21 moves towards the third air passage 173, and if the third air passage 173 contacts with the elastic diaphragm 21 in a natural state, the elastic diaphragm 21 will strike the end of the third air passage 173 when restored, and damage to the elastic diaphragm 21 is easily caused. The distance between the third air passage 173 and the elastic diaphragm 21 is set, so that the elastic diaphragm 21 can be prevented from striking the third air passage 173, the bulge 253 is convenient to set while the elastic diaphragm 21 is protected, and in addition, the micro-spacing under the parameters is also beneficial to coupling of high-pressure pulse gas with liquid at the elastic diaphragm 21.
As an example, the exhaust speed of the exhaust port in the second period is varied, which includes a first exhaust speed and a second exhaust speed, the first exhaust speed being greater than the second exhaust speed, the exhaust port being exhausted at the first exhaust speed and then exhausted at the second exhaust speed, so that the diaphragm 21 can be prevented from striking the third air path tube 173.
It will be appreciated that, when the third air passage 173 does not completely penetrate the second through hole 252, the part of the deforming portion 212 facing away from the liquid passage 23 is the surface S of the second abutting portion 25, and the distance is set to avoid the diaphragm 21 from striking the surface S of the second abutting portion 25.
As an embodiment, the third air channel 173 may be in communication with the second through hole 252, for example, the third air channel 173 may extend only to an end of the second through hole 252 near the manual ball valve 14, and a portion of the air flow channel is formed by the second through hole 252. The third air channel 173 may also extend into a portion of the second through hole 252 or extend through the second through hole 252 and be flush with the end of the second through hole 252 near the coupling portion 22. As an example, the end of the third air passage 173 may also be in contact with the elastic diaphragm 21.
As an example, the operation portion 20 further includes a housing 26 fixedly provided at the periphery of the coupling portion 22, and an end of the housing 26 remote from the body portion 10 is hermetically connected to the liquid path pipe. At least one annular surface 254 is disposed on the periphery of the second thread structure 222 of the second abutting portion 25; the sidewall of the housing 26 contacts the at least one annular surface 254 to form at least one seal. It will be appreciated that the annular surface 254 may be formed on the outer surface of the second abutting portion 25, or an annular groove may be formed on the second abutting portion 25, where the annular groove includes two annular surfaces 254 with opposite radial diameter dimensions, and when the housing 18 is inserted into the annular groove, the inner wall and the outer wall of the housing 18 form a double seal structure with the two annular surfaces 254, respectively.
As an embodiment, the first docking portion 182 and the second docking portion 25 are provided with first and second electrical connection portions 183 and 255 that are matched with each other on the docking surfaces thereof; when the first docking portion 182 and the second docking portion 25 complete the docking, the first electrical connection portion 183 and the second electrical connection portion 255 contact to achieve electrical connection.
It is understood that the first electrical connection 183 and the second electrical connection 255 may be a plug and/or magnetically attractive connection.
As an example, the operating portion 20 is provided with an operating handle 27 fixedly connected to the liquid passage pipe 23 and a wire (not shown) having one end connected to the operating handle 27 and the other end passing through a space P between the housing 26 and the coupling portion 22 and connected to the second electrical connection portion 255 through the second butting portion 25. Because the handle part is arranged on the liquid path pipe 23, the operation of medical staff is very convenient.
As an embodiment, the liquid path tube 23 and the conducting wire between the operating handle 27 and the coupling part 22 are covered by the insulating layer 231, so that the appearance of the product is more concise.
As an example, the length of the liquid path tube 23 between the operation handle 27 and the coupling part 22 is 0.8-1.4m, which is convenient for the medical staff. Further, the length of the liquid path tube 23 between the operation handle 27 and the coupling portion 22 is 0.8-1.2mm
As an embodiment, the liquid pipe 23 near the operating handle 27 is provided with a liquid injection port 28 for injecting the liquid, and the liquid injection port 28 is arranged at the operating handle 27, so that the concentration of the components is avoided, and the manufacturing difficulty is increased.
As an example, the operation portion 20 is also provided with a hydraulic pressure detector that may be provided on the liquid path pipe 23 and that communicates with the internal space of the liquid path pipe 23.
As an embodiment, the pulse type focus breaking device 1 provided by the invention is basically consistent with the pressure parameters of the pressure detector 16 in operation, and the difference is less than 5%.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (11)
1. A pulsed focal shredding device, characterized by: the pulse type focus crushing device comprises a body part and an operation part, wherein the body part is detachably connected with the operation part;
The operation part comprises an elastic diaphragm, a coupling part, a liquid path pipe and a balloon, wherein one end of the coupling part is connected with the elastic diaphragm, and the other end of the coupling part is connected with the balloon through the liquid path pipe; the coupling part, the liquid path pipe and the balloon are communicated to form a liquid accommodating space for accommodating liquid, and the liquid accommodating space is sealed by the elastic diaphragm;
the body part comprises an electromagnetic valve with an air inlet and an air outlet, a linear air flow channel is formed between the air outlet of the electromagnetic valve and the elastic diaphragm, and the air flow channel can exhaust through the air outlet; when high-pressure gas enters the air inlet, the electromagnetic valve is matched with the air outlet to control the generation of periodic high-pressure pulse gas;
the single generation cycle of the high-pressure pulse gas includes a first period in which the solenoid valve is turned on, the exhaust port is closed, and the high-pressure gas advances along the gas flow passage and impacts the elastic diaphragm to deform the elastic diaphragm; in the second period, the electromagnetic valve is closed, the exhaust port is opened for exhausting, and the elastic diaphragm is reset.
2. The pulsed lesion shattering device according to claim 1, wherein: when the high-pressure pulse gas impacts the elastic diaphragm, the maximum air pressure in the air flow channel is P, and P is more than or equal to 6atm and less than or equal to 30atm;
a maximum value of a volume change of the liquid containing space in a single generation cycle of the high-pressure pulse gas is 0.01ml;
the frequency of the high-pressure pulse gas is 5-20Hz.
3. The pulsed lesion shattering device according to claim 1, wherein: the radial dimension of the airflow channel is 8-15mm;
the coupling part is basically in a conical structure, the conical structure comprises a first end and a second end which are opposite and positioned on the extension line of the airflow channel, the first end is larger than the second end in size, the radial size of the first end is larger than 15mm, and the inclination angle of the inner wall of the first end is 20-50 degrees;
the radial dimension of the liquid path pipe is 0.6-1.2mm.
4. The pulsed lesion shattering device according to claim 1, wherein: in the first period, the flow rate of the high-pressure pulse gas in the gas flow channel is greater than 5m/s;
the maximum deformation amplitude of the elastic diaphragm in the axial direction of the airflow channel is 0.1-0.2mm, and the time period from deformation to resetting of the elastic diaphragm is less than 0.1s.
5. The pulsed focal morcellating device of any one of claims 1-4, wherein: the elastic diaphragm is a silica gel film, a PTFE film, a TPU film, a PET film or a PU film, and the thickness of the elastic diaphragm is 0.7-3mm.
6. The pulsed focal morcellating device of any one of claims 1-4, wherein: controlling the opening and closing of the exhaust port according to the duration of a preset first period and a preset second period; or controlling the opening and closing of the exhaust port according to the air pressure of the air flow channel.
7. The pulsed lesion shattering device according to claim 1, wherein: the body part comprises a first butt joint part arranged at the periphery of the airflow channel; the operating part comprises a second butting part matched with the first butting part; when the body part is connected with the operation part, the first butt joint part and the second butt joint part are in concave-convex tight fit to realize detachable connection;
the second butt joint part is provided with a through hole and a first thread structure, the through hole is used for the air flow channel to pass through, and the through hole is positioned in an area surrounded by the first thread structure when seen in the axial direction of the through hole;
the coupling part is characterized in that a second thread structure matched with the first thread structure is arranged on the outer surface of the coupling part, and when the first thread structure and the second thread structure are screwed, the edge part of the elastic diaphragm is clamped between the coupling part and the second butt joint part.
8. The pulsed lesion shattering device according to claim 7, wherein: one end of the coupling part, which is far away from the liquid path pipe, is provided with a concave structure, and the elastic diaphragm is stuck in the concave structure;
the second butt joint portion is provided with towards bellied bellying of coupling portion, first screw thread structure sets up the bellying periphery, first screw thread structure with when second screw thread structure accomplishes the screw thread and twists, the bellying will the elastic diaphragm butt in on the coupling portion.
9. The pulsed lesion shattering device according to claim 7, wherein: the operation part comprises a shell fixedly arranged at the periphery of the coupling part; at least one annular surface is arranged on the periphery of the first thread structure of the second butt joint part; the side wall of the shell is contacted with the at least one annular surface to form at least one sealing structure.
10. The pulsed lesion shattering device according to claim 9, wherein: the butt joint surfaces of the first butt joint part and the second butt joint part are provided with a first electric connection part and a second electric connection part which are matched with each other; when the first butt joint part and the second butt joint part are in butt joint, the first electric connection part and the second electric connection part are in contact to realize electric connection;
The body part comprises a control circuit board electrically connected with the first electric connection part, the operation part is provided with an operation handle fixedly connected with the liquid path pipe and a wire, one end of the wire is connected with the operation handle, and the other end of the wire penetrates through the space between the shell and the coupling part and penetrates through the second butt joint part to be connected with the second electric connection part;
the liquid path pipe and the lead wire which are positioned between the operating handle and the coupling part are coated together through an insulating layer;
the length of the liquid path pipe between the operating handle and the coupling part is 0.8-1.4m.
11. The pulsed lesion shattering device according to claim 1, wherein: the pulse type focus crushing device further comprises a control circuit board, an electric proportional valve, a pressure sensor, a manual ball valve and a ball valve state detector, wherein the electric proportional valve, the pressure sensor and the electromagnetic valve are all connected with the control circuit board, and the manual ball valve is arranged on the airflow channel and is connected with the control circuit board through the ball valve state detector; the electric proportional valve is connected with the electromagnetic valve and can provide the high-pressure gas with set air pressure; the pressure sensor may detect air pressure on the air flow passage between the solenoid valve and the manual ball valve; the ball valve state detector is used for detecting the working state of the manual ball valve and generating working state information to be fed back to the control circuit board;
The pulse type focus crushing device comprises a first working mode and a second working mode;
in the first working mode, the manual ball valve is closed, the ball valve state detector feeds back the working state information to the control circuit board, the control circuit board at least controls the electric proportional valve and the electromagnetic valve to enter a self-checking working mode, and whether one or more of the electric proportional valve, the electromagnetic valve, the manual ball valve and the air path channel is abnormal is judged through the air pressure detected by the pressure sensor;
in the second working mode, the manual ball valve is conducted, the ball valve state detector feeds back the working state information to the control circuit board, and the control circuit board at least controls the electric proportional valve and the electromagnetic valve to generate the periodical high-pressure pulse gas.
Priority Applications (1)
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