CN112674838B - High-pressure shock wave generation system for cardiovascular stenosis - Google Patents
High-pressure shock wave generation system for cardiovascular stenosis Download PDFInfo
- Publication number
- CN112674838B CN112674838B CN202110013207.2A CN202110013207A CN112674838B CN 112674838 B CN112674838 B CN 112674838B CN 202110013207 A CN202110013207 A CN 202110013207A CN 112674838 B CN112674838 B CN 112674838B
- Authority
- CN
- China
- Prior art keywords
- voltage
- pulse
- switch
- capacitor
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electrotherapy Devices (AREA)
Abstract
The invention relates to a high-voltage shock wave generation system for cardiovascular stenosis, which comprises an energy generator, wherein the energy generator comprises an energy storage device and an energy release control device, and the energy release control device comprises a high-voltage pulse circuit, an electrode selection circuit and a release state detection circuit; the high-voltage pulse circuit is of a topological structure and comprises a positive electrode, a negative electrode, a capacitor, a diode and a switch. The invention can carry out voltage transformation of the pulse circuit by designing the transformer, the capacitor and the switch, thereby realizing continuous adjustment of pulse voltage and independently and continuously releasing multiple pulses for a certain area; the release current and the pulse width can be detected through the release state detection circuit, the overcurrent signal is detected through the detection circuit, the energy release is cut off in time, safety and high efficiency are achieved, and the effect of the system on lesion treatment is better.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to a high-pressure shock wave generation system for cardiovascular stenosis.
Background
The blood vessel stenosis refers to the condition that lipid in blood is deposited on an original smooth blood vessel intima due to abnormal lipid metabolism of human artery and vein blood vessels, wrapped coronary vessels, peripheries, intracranial blood vessels and the like, lipid plaques of atheroma are gradually accumulated, and the plaques are increased or even calcified to cause the stenosis in the blood vessel cavity along with the lapse of time, so that the blood flow is blocked, the blood vessels and the human body at the downstream are ischemic, and the corresponding clinical manifestations are generated. If the stenosis occurs in coronary artery, palpitation, chest pain, dyspnea and angina can be caused, and serious patients can cause insufficient blood supply to cardiac muscle or cardiac muscle necrosis; if it occurs peripherally, a decrease in skin epidermal temperature, muscle atrophy, intermittent claudication and even necrosis or amputation of the distal limb may occur. If it occurs in the cranium, dizziness, syncope, and even brain tissue damage and brain dysfunction can occur.
With the development of cardiovascular intervention technology, the technology aiming at angiostenosis changes day by day; for the lesion with higher stenosis degree and serious calcification, the existing technology is to firstly pass through a lesion blood vessel by a guide wire, then place a high-pressure balloon at the stenosis position for pre-expansion, and finally implant a vascular stent at the target stenosis position by exchanging a stent delivery system. The technology also has many problems at present, 10-15 atmospheres are sometimes needed for pre-expanding the blood vessel for the pathological changes with serious calcification, and 30 atmospheres are sometimes needed, and the result brought by the high pressure inevitably causes the calcified plaque to transfer stress to the inner wall of the blood vessel to cause blood vessel damage, and serious patients cause blood vessel interlayer or perforation. In addition, clinical studies have shown that the long-term restenosis rate of the lesions after the stent has been successfully implanted is high, because the stent is a foreign substance, and the continuous stimulation of the vascular intima can cause intimal hyperplasia, and further restenosis of the blood vessel occurs.
Chinese patent CN111568500A discloses a blood vessel recanalization system for cardiovascular stenosis, including sacculus, energy generation controller, pipe, the pipe includes the main part pipe, pipe one end with energy generation controller connects, and the main part pipe of the pipe other end with the one end of sacculus is connected, the sacculus includes sacculus main part, inner tube, electrode pair, affiliated energy generation controller can send and regulate and control the vibration signal of specific frequency and make the electrode pair vibrate, can solve current cardiovascular intervention technique through the vascular injury that simple high pressure sacculus pre-dilatation caused, and the invention has the medicine carrying function, and this medicine can restrain the increase of blood vessel recanalization membrane after the recanalization, avoids causing the restenosis condition after the recanalization to appear. However, the pulse parameter setting in the energy generation controller used in the invention is single, the pulse release energy cannot be detected and controlled, the pulse voltage cannot be continuously adjusted, multiple pulses are independently and continuously released for a serious area, the functions are fewer, the effect of the system on lesion treatment is weakened, the requirement on the voltage withstanding degree of the components is higher when the system realizes the pulses, and the cost is higher.
In view of this, how to overcome the limitations of the prior art, the design of the energy generator controller is changed to control and detect pulse parameters, so as to achieve continuous and adjustable pulse voltage, and make the system have better effect on lesion treatment, which is a problem that those skilled in the art need to solve.
Disclosure of Invention
In view of this, an object of the present application is to provide a high-voltage shock wave generation system for cardiovascular stenosis, which can control and detect pulse parameters, and achieve continuous adjustment of pulse voltage, so as to achieve the purposes of maintaining long-term patency of blood vessels and treating vascular stenosis.
In order to achieve the above object, the present application provides the following technical solutions.
A high voltage shock wave generating system for cardiovascular stenosis, the system comprising an energy generator comprising an energy storage device and an energy release control device, the energy release control device comprising a high voltage pulse circuit, an electrode selection circuit, and a release state detection circuit; the high-voltage pulse circuit is of a topological structure and comprises a positive electrode, a negative electrode, a capacitor, a diode and a switch.
Preferably, the high-voltage pulse circuit comprises n loops, wherein n is a natural number greater than 1, and the loops comprise capacitors, diodes and switches.
Preferably, the capacitor comprises a single-stage capacitor or a multi-stage capacitor, and the multi-stage capacitor comprises one or a combination of a plurality of capacitors connected in series, a plurality of capacitors connected in parallel, a plurality of capacitors connected in series and then connected in parallel as a group.
Preferably, the switch comprises a single-stage switch or a multi-stage switch, and the multi-stage switch comprises one of a plurality of parallel connections, a plurality of series-to-parallel connections, or a combination thereof.
Preferably, the switch comprises one of a relay, a thyristor, a MOS transistor, a LGBT or a combination thereof.
Preferably, the high-voltage pulse circuit comprises a single transformer or a plurality of transformers connected in series, and the transformation ratio of the transformers is 1: 2-1000.
Preferably, the pulse voltage of the energy generator is 300-20000V, and the pulse width of the energy generator is 10-108ns。
Preferably, the energy storage device is one of an inductor, a capacitor, or a combination thereof.
Preferably, the release state detection circuit includes a current detection circuit and a pulse voltage detection circuit, and the electrode selection circuit includes an electrode pair.
Preferably, the energy generator comprises a switch, an interface and a display screen; the balloon catheter is characterized in that a connecting wire is connected to the interface, a connector is arranged on the connecting wire and connected with an operating handle, a catheter is connected to the operating handle, and the catheter is connected with the balloon.
The use method of the high-pressure shock wave generation system for cardiovascular stenosis lesion comprises the following steps:
s1, connecting an energy generator, an operating handle and a balloon;
s2, delivering the balloon to the target stenosis position;
s3, injecting a liquid medium into the balloon;
s4, controlling energy release by operating a handle;
s5, applying pressure to the sacculus after the oscillation is finished;
s6, adjusting the balloon pressure by adjusting the amount of the liquid medium through a liquid supplier;
s7, reading information in the saccule or the operating handle by the energy generator, setting pulse parameters through a display screen according to different catheters, outputting high voltage by the high-voltage pulse circuit, selecting an electrode pair for releasing pulses by the electrode selection circuit, and generating shock waves by discharging;
s8, repeating the steps 1-7 until the pressure value in the saccule is small, and adjusting the treatment parameters.
The invention has the following beneficial technical effects:
1) the vessel recanalization shock wave diagnosis and treatment instrument is simple in structure, small in size and convenient to store, and achieves vessel recanalization shock wave diagnosis and treatment operation.
2) The invention realizes high-voltage pulse, reduces the requirements of voltage resistance and conduction current of the assembly, reduces unnecessary heat release, and has low equipment cost and higher efficiency.
3) The invention can realize continuous adjustment of pulse voltage by carrying out voltage transformation of the pulse circuit through the design of the transformer, the capacitor and the switch, and can independently and continuously release multiple pulses for a certain area, so that the system has better effect on treating pathological changes.
4) The invention can detect the release current through the release state detection circuit, control the pulse width according to the current and finally realize the release energy control; the release state detection circuit detects the overcurrent signal, timely cuts off energy release, and is safe and efficient.
5) The invention can be matched with a balloon catheter to carry out a conventional interventional operation mode, and a generator of a control recanalization system applies vibration waves to vibrate and expand a narrow blood vessel attached to the periphery of the balloon to a certain recanalization rate, so that the aim of keeping the long-term normal blood vessel is fulfilled, and the aim of treating cardiovascular stenosis is finally fulfilled.
6) The invention can automatically or manually set the electrode pulse mode through the display screen to control the times of continuous pulses.
The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be more clearly understood and the present application can be implemented according to the content of the description, and in order to make the above and other objects, features and advantages of the present application more clearly understood, the following detailed description is made with reference to the preferred embodiments of the present application and the accompanying drawings.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic view of the assembly and operation of a vascular recanalization system according to the present invention;
FIG. 2 is a schematic diagram of a circuit topology structure of embodiment 3 for implementing high voltage pulse;
FIG. 3 is a schematic diagram of a circuit topology for implementing high voltage pulse in embodiment 4;
FIG. 4 is a schematic diagram of a circuit topology according to embodiment 5 for implementing high voltage pulse;
FIG. 5 is a schematic diagram of a circuit topology according to embodiment 7 for realizing high voltage pulse;
FIG. 6 is a schematic diagram of a circuit topology according to embodiment 8 for implementing high voltage pulses;
fig. 7 is a schematic diagram of a circuit topology for implementing high voltage pulse in embodiment 9.
Wherein: 1. an energy generator; 2. pressing a key; 3. an interface; 4. a display screen; 5. a connecting wire; 6. a connector; 7. an operating handle; 8. a conduit; 9. a balloon.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
Example 1
A high voltage shockwave generating system for cardiovascular stenosis, said system comprising an energy generator 1, said energy generator 1 comprising an energy storage device and an energy release control device, said energy release control device comprising a high voltage pulsing circuit, an electrode selection circuit and a release status detection circuit; the high-voltage pulse circuit is of a topological structure and comprises a positive electrode, a negative electrode, a capacitor, a diode and a switch.
Furthermore, the high-voltage pulse circuit comprises n loops, wherein n is 2-100, and each loop comprises a capacitor, a diode and a switch.
Further, the capacitor comprises a single-stage capacitor or a multi-stage capacitor, and the multi-stage capacitor comprises one or a combination of a plurality of capacitors connected in series, a plurality of capacitors connected in parallel, a plurality of capacitors connected in series, and a group of capacitors connected in parallel.
The switch comprises a single-stage switch or a multi-stage switch, and the multi-stage switch comprises one of single, multiple parallel, multiple series-parallel or combination thereof.
Further, the switch comprises one or a combination of a relay, a thyristor, a MOS transistor, and an LGBT.
Furthermore, the high-voltage pulse circuit comprises a single transformer or a plurality of transformers connected in series, and the transformation ratio of the transformers is 1: 2-1000.
Further, the energy storage device is one of an inductor, a capacitor, or a combination thereof.
Further, the energy release control device comprises a high-voltage pulse circuit and a release state detection circuit, wherein the release state detection circuit comprises a current detection circuit, an electrode selection circuit and a pulse voltage detection circuit; the current detection circuit detects the released current by adopting a current sampling resistor or a current transformer, controls the pulse width according to the current and finally realizes the control of the released energy; the current detection circuit is used for overcurrent protection, and when an overcurrent signal is detected, energy release is cut off in time.
Furthermore, the pulse voltage detection circuit adopts a voltage division sampling resistance mode or a voltage sensor for detection, and the release voltage is detected according to the voltage.
Further, the electrode selection circuit comprises a controllable switch and a driving circuit; the drive circuit includes a switch and an electrode pair.
Further, the driving switch and the switch comprise one or a combination of a relay, a thyristor, a MOS transistor and an IGBT; the switches are connected in parallel or in series or in parallel after being connected in series.
Further, the number of the electrode pairs is 1-100 pairs; the electrode pulse mode is set automatically or manually; one mode is that the electrodes release pulses one by one in a certain sequence, and the number of the continuous pulses can be 1-100; the other mode is that 2 or more electrode pairs are connected in parallel to continuously release pulses, and the number of the continuous pulses can be 1-100; another way is that one or several electrode pairs release pulses continuously, and the continuous pulse number is set, and the continuous pulse number can be 1-100.
Further, as shown in fig. 1, the energy generator 1 includes a key 2, an interface 3, a display screen 4, an energy storage device and an energy release control device, the interface 3 is connected with a connection line 5, the connection line 5 is provided with a connector 6, the connector 6 is connected with an operation handle 7, the operation handle 7 is connected with a catheter 8, and the catheter 8 is connected with a balloon 9.
Example 2
This embodiment is performed based on embodiment 1, and the same parts as those in the above embodiment are not repeated.
This embodiment mainly introduces a circuit topology to implement high voltage pulse.
The pulse circuit comprises an anode, a cathode and n loops, wherein n is a natural number greater than 1, each loop comprises a capacitor C, a diode D and a switch SW, and each loop is provided with three nodes.
Further, the release voltage range of the pulse circuit is 300V-20000V.
Furthermore, the voltage is boosted through the energy storage of the capacitor and then discharged in series, the divided voltage on the m switches is one m of the total voltage, and m is a natural number greater than 1, so that the voltage withstanding requirement on each switch can be reduced, the switches with low withstanding voltage and high switching speed can be used for realizing fast switching, the switching speed can be controlled within 1us, and the single discharge energy is controlled within 0.1J-1J. The quick switch can reduce unnecessary heat release and reduce the influence on tissues.
Furthermore, by connecting n groups of current in parallel, the current on each switch is one n times of the total current, so that the requirement on the conduction current of each switch can be reduced, and the output of large current of 50A-500A can be realized.
Further, the switch comprises a single-stage switch or a multi-stage switch, and the multi-stage switch comprises one or any combination of a plurality of parallel or a plurality of series-connected and then-parallel multi-group switches.
The capacitor comprises a single-stage capacitor or a multi-stage capacitor, and the multi-stage capacitor comprises one or a combination of a plurality of capacitors connected in series, a plurality of capacitors connected in parallel, a plurality of capacitors connected in series and then connected in parallel.
Example 3
This embodiment is performed on the basis of the above embodiment 2, and the same parts as the above embodiment will not be described again.
As shown in fig. 2, the pulse circuit includes 5 loops, each of which includes a capacitor C, a diode D, and a switch SW.
Further, the switch is a single-stage switch.
Further, the capacitor is a single-stage capacitor.
Further, the voltage is boosted through the energy storage of the capacitor and then discharged in series, and the divided voltage on the 3 switches is 3 times of the total voltage.
Further, the current is then split by 5 groups of parallel connections, each switch being split up by one fifth of the total current.
Example 4
This embodiment is performed based on embodiment 2, and the same parts as those in the above embodiment are not described again.
As shown in fig. 3, in this embodiment, on the basis of embodiment 2, a transformer is added between the loop and the electrode, and the voltage is boosted by the transformer, so that the ratio of the transformer to the electrode is M, and thus the withstand voltage of a single switch group is M times of the total voltage, which can reduce the withstand voltage requirement for each switch.
Further, M is 1: 2-1000.
Example 5
This embodiment is performed on the basis of the above embodiment 4, and the same parts as the above embodiment will not be described again.
As shown in fig. 4, in this embodiment, a plurality of transformers are added to the circuit in series based on embodiment 4, and the number of the loops connected to the plurality of transformers is the same or different, so as to meet the requirement of lower voltage resistance of the switch.
Example 6
This embodiment is performed based on embodiment 1, and the same parts as those in the above embodiment are not repeated.
This embodiment mainly introduces a circuit topology to implement high voltage pulse.
The pulse circuit comprises an anode, a cathode and n loops, wherein n is a natural number greater than 1, each loop comprises a capacitor C, a diode D and a switch SW, each loop is provided with two nodes, and the nodes are arranged at two ends of the diode D.
Further, the release voltage range of the pulse circuit is 300V-20000V.
Furthermore, the voltage is boosted through the energy storage of the capacitor and then discharged in series, the divided voltage on the m switches is one m of the total voltage, and m is a natural number greater than 1, so that the voltage withstanding requirement on each switch can be reduced, the switches with low voltage withstanding and high switching speed can be used for realizing rapid switching, the switching speed can be controlled within 1us, and the single discharge energy is controlled within 0.1J-1J. The quick switch can reduce unnecessary heat release and reduce the influence on tissues.
Furthermore, by connecting n groups of current in parallel, the current on each switch is one n times of the total current, so that the requirement on the conduction current of each switch can be reduced, and the output of large current of 50A-500A can be realized.
Further, the switch includes a single-stage switch or a multi-stage switch, and the multi-stage switch includes one or any combination of a plurality of parallel switches or a plurality of series switches and then a plurality of parallel switches.
The capacitor comprises a single-stage capacitor or a multi-stage capacitor, and the multi-stage capacitor comprises one or a combination of a plurality of capacitors connected in series, a plurality of capacitors connected in parallel, a plurality of capacitors connected in series and then connected in parallel.
Example 7
This embodiment is performed based on embodiment 6, and the same parts as those in the above embodiment are not repeated.
As shown in fig. 5, the pulse circuit includes 3 loops, each of which includes a capacitor C, a diode D, and a switch SW.
Further, the switch is a single-stage switch.
Further, the capacitor is a single-stage capacitor.
Further, the voltage is boosted through the energy storage of the capacitor and then discharged in series, and the divided voltage on the 3 switches is 3 times of the total voltage.
Further, by connecting 3 groups of currents in parallel, the current is divided up by one third of the total current on each switch.
Example 8
As shown in fig. 6, in this embodiment, a pulse transformer is added on the basis of embodiment 6, and the voltage is boosted by the pulse transformer, and the ratio of the pulse transformer is M, so that the withstand voltage of a single switch group is M times of the total voltage, and the withstand voltage requirement of each switch can be reduced.
Further, M is 1: 2-1000.
Example 9
This embodiment is performed based on embodiment 8, and the same parts as those in the above embodiment are not repeated.
As shown in fig. 7, in this embodiment, a plurality of pulse transformers are serially connected into a circuit on the basis of embodiment 8, the number of loops connected by the plurality of transformers is the same or different, and the requirement for lower withstand voltage of the switch is met.
Example 10
A method of using a high pressure shock wave generation system for cardiovascular stenosis with the system of any of the above embodiments 1-9, comprising the steps of:
s1, connecting the energy generator 1, the operating handle 7 and the balloon 9;
s2, delivering the balloon 9 to the target stenosis position;
s3, injecting a liquid medium into the balloon;
s4, controlling energy release through the operating handle 7;
s5, applying pressure to the balloon 9 after the oscillation is finished;
s6, adjusting the pressure of the balloon 9 by adjusting the amount of the liquid medium through a liquid supplier;
s7, the energy generator 1 reads information in the saccule 9 or the operation handle 7, pulse parameters are set through the display screen 4 according to different catheters, the high-voltage pulse circuit outputs high voltage, the electrode selection circuit selects the electrode pair releasing the pulse, and the shock wave is generated by discharging;
and S8, repeating the steps 1-7 until the pressure value in the saccule changes a little, and adjusting the treatment parameters.
The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and various modifications and changes may be made by those skilled in the art. Variations, modifications, substitutions, integrations and parameter changes of the embodiments may be made by the conventional substitutes or the same functions may be performed within the spirit and principle of the invention without departing from the principle and spirit of the invention.
Claims (5)
1. A high voltage shock wave generation system for cardiovascular stenosis, characterized in that the system comprises an energy generator (1), the energy generator (1) comprising an energy storage device and an energy release control device, the energy release control device comprising a high voltage pulse circuit, an electrode selection circuit and a release state detection circuit;
the energy generator (1) comprises a key (2), an interface (3) and a display screen (4), the interface (3) is connected with a connecting wire (5), a connector (6) is arranged on the connecting wire (5), the connector (6) is connected with an operating handle (7), the operating handle (7) is connected with a catheter (8), and the catheter (8) is connected with a balloon (9); the energy generator (1) reads information in the saccule or the operating handle (7), pulse parameters are set through the display screen (4) according to different catheters, and the high-voltage pulse circuit outputs high voltage;
the energy storage device is one or a combination of an inductor and a capacitor;
the high-voltage pulse circuit is of a topological structure and comprises a positive electrode, a negative electrode, a capacitor, a diode and a switch; the high-voltage pulse circuit comprises n loops, wherein n is a natural number greater than 1, and each loop comprises a capacitor, a diode and a switch; by connecting n groups of branches in parallel, the upper branch of each switch is one n times of the total current;
the voltage is boosted through the energy storage of the capacitor, and then the capacitor is serially connected for discharging, the partial voltage on the m switches is one m of the total voltage, and m is a natural number greater than 1, so that the voltage-resistant requirement on each switch can be reduced, the switches with low voltage resistance and high switching speed are used for realizing the fast switching, the switching speed is controlled within 1us, and the single discharging energy is controlled within 0.1J-1J;
the capacitor comprises a single-stage capacitor or a multi-stage capacitor, and the multi-stage capacitor comprises one or a combination of a plurality of capacitors connected in series, a plurality of capacitors connected in parallel, a plurality of capacitors connected in series and then connected in parallel;
the electrode selection circuit selects the electrode pair releasing the pulse, and the discharge generates shock waves;
the release state detection circuit comprises a current detection circuit, an electrode selection circuit and a pulse voltage detection circuit, wherein the current detection circuit detects release current by adopting a current sampling resistor or a current transformer, and controls pulse width according to the current to finally realize release energy control; the electrode selection circuit includes a pair of electrodes.
2. The system of claim 1, wherein the switch comprises a single-stage switch or a multi-stage switch, and the multi-stage switch comprises one of a plurality of parallel switches, a plurality of series-parallel switches, or a combination thereof.
3. The system of claim 2, wherein the switch comprises one or a combination of a relay, a thyristor, a MOS transistor, and a LGBT.
4. The system for generating high-voltage shock waves for cardiovascular stenosis according to claim 1, wherein the high-voltage pulse circuit comprises a transformer, the transformer is connected in series or in series, and the transformation ratio of the transformer is 1: 2-1000.
5. The high-voltage shock wave generation system for angiostenosis according to any one of claims 1 to 4, wherein the pulse voltage of the energy generator (1) is 300 to 20000V, and the pulse width of the energy generator (1) is 10 to 108 ns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110013207.2A CN112674838B (en) | 2021-01-06 | 2021-01-06 | High-pressure shock wave generation system for cardiovascular stenosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110013207.2A CN112674838B (en) | 2021-01-06 | 2021-01-06 | High-pressure shock wave generation system for cardiovascular stenosis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112674838A CN112674838A (en) | 2021-04-20 |
| CN112674838B true CN112674838B (en) | 2022-06-21 |
Family
ID=75455933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110013207.2A Active CN112674838B (en) | 2021-01-06 | 2021-01-06 | High-pressure shock wave generation system for cardiovascular stenosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112674838B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932609A (en) * | 2021-01-06 | 2021-06-11 | 苏州中荟医疗科技有限公司 | Shock wave generation system for cardiovascular stenosis |
| CN113520521B (en) * | 2021-08-30 | 2023-11-03 | 江苏朴芃医疗科技有限公司 | Current peak detection device, high-voltage generator and vascular calcification treatment equipment |
| CN114098897A (en) * | 2021-11-04 | 2022-03-01 | 杭州天路医疗器械有限公司 | Balloon type shock wave generation system capable of controlling energy and control method thereof |
| CN115804628B (en) * | 2022-07-26 | 2024-02-13 | 鑫易舟(上海)医疗器械有限公司 | Medical device, control method thereof, IVL system and energy adjustment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202682564U (en) * | 2012-05-30 | 2013-01-23 | 张涛 | Full-time high-voltage steep pulse cancer therapeutic apparatus |
| CN109256977A (en) * | 2018-10-25 | 2019-01-22 | 杭州电子科技大学 | A kind of more waveform high-voltage pulse formation circuits of more level |
| CN109999340A (en) * | 2019-04-29 | 2019-07-12 | 杭州睿笛生物科技有限公司 | A kind of loaded self-adaptive nanosecond pulse generation device |
| CN111568500A (en) * | 2020-05-26 | 2020-08-25 | 王志玉 | Blood vessel recanalization system for cardiovascular stenosis lesion |
-
2021
- 2021-01-06 CN CN202110013207.2A patent/CN112674838B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202682564U (en) * | 2012-05-30 | 2013-01-23 | 张涛 | Full-time high-voltage steep pulse cancer therapeutic apparatus |
| CN109256977A (en) * | 2018-10-25 | 2019-01-22 | 杭州电子科技大学 | A kind of more waveform high-voltage pulse formation circuits of more level |
| CN109999340A (en) * | 2019-04-29 | 2019-07-12 | 杭州睿笛生物科技有限公司 | A kind of loaded self-adaptive nanosecond pulse generation device |
| CN111568500A (en) * | 2020-05-26 | 2020-08-25 | 王志玉 | Blood vessel recanalization system for cardiovascular stenosis lesion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112674838A (en) | 2021-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112674838B (en) | High-pressure shock wave generation system for cardiovascular stenosis | |
| US11950794B2 (en) | Electrically enhanced retrieval of material from vessel lumens | |
| US20230248412A1 (en) | Generating irreversible electroporation and radiofrequency-abaltion (ire/rfa) waveforms | |
| US11395668B2 (en) | Electrically enhanced retrieval of material from vessel lumens | |
| US11612430B2 (en) | Electrically enhanced retrieval of material from vessel lumens | |
| CN113648048A (en) | Shock wave balloon catheter system with controllable discharge | |
| US20010044596A1 (en) | Apparatus and method for treatment of vascular restenosis by electroporation | |
| US11974752B2 (en) | Electrically enhanced retrieval of material from vessel lumens | |
| CN215899865U (en) | Shock wave balloon catheter system with controllable discharge | |
| CN115429418A (en) | Medical treatment system | |
| EP4140418A1 (en) | Electrical signals for retrieval of material from vessel lumens | |
| CN114098897A (en) | Balloon type shock wave generation system capable of controlling energy and control method thereof | |
| CN215458589U (en) | Multiple cage-like structure multi-electrode ablation catheter and device thereof | |
| EP4072445B1 (en) | Electrically enhanced retrieval of material from vessel lumens | |
| CN216855513U (en) | Energy release device for cardiovascular stenosis | |
| CN113288404A (en) | Ablation catheter with multiple cage-shaped structures and multiple electrodes and equipment thereof | |
| CN216854776U (en) | Energy generator for cardiovascular stenosis | |
| CN117562621A (en) | Shock wave energy control system | |
| CN112932609A (en) | Shock wave generation system for cardiovascular stenosis | |
| CN216855512U (en) | Electrode selection device for cardiovascular stenosis | |
| US11918242B2 (en) | Retrieval of material from vessel lumens | |
| CN221671847U (en) | Catheter assembly of shock wave balloon catheter system and shock wave generation system | |
| US20240260982A1 (en) | Intravascular lithotripsy catheter with movable emitters | |
| CN117100360A (en) | Catheter assembly of shock wave balloon catheter system and shock wave generation system | |
| CN117338375A (en) | Shock wave energy control system and shock wave generation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |