CN115624367B - Auxiliary device for treating vascular calcification - Google Patents
Auxiliary device for treating vascular calcification Download PDFInfo
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- CN115624367B CN115624367B CN202211443101.7A CN202211443101A CN115624367B CN 115624367 B CN115624367 B CN 115624367B CN 202211443101 A CN202211443101 A CN 202211443101A CN 115624367 B CN115624367 B CN 115624367B
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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
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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
- 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
- A61B2017/22025—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 applying a shock wave
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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
- A61B2017/22051—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 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22062—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 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation to be filled with liquid
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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
- A61B2017/22051—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 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22069—Immobilising; Stabilising
Abstract
The invention provides an auxiliary device for treating vascular calcification, which belongs to the technical field of medical instruments and comprises a device body and a generator, wherein the generator is electrically connected with the device body through an interface; by arranging the exposed positive electrode and the exposed negative electrode which can switch the electrode leads, high-voltage breakdown can be generated between the electrode leads to generate energy release during working, so that liquid in the isolation cavity is vaporized to form shock wave impact calcified lesion; compared with the impact waveguide tube in the prior art, the technical scheme has the advantages that the front end of the impact waveguide tube is better in flexibility and can be more easily guided into a diseased part, and the risk of liquid leakage caused by breakdown can be reduced due to the fact that the distance between a discharge part and an expansion tube wall is increased; by exchanging the positive and negative electrodes of the electrode lead during working and selecting the working electrode lead pair, the corrosion of the electrode lead can be reduced, and the service life is prolonged. Meanwhile, the electrode leads at different positions are controlled to work, so that the eccentric lesion patient can be better treated.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an auxiliary device for treating vascular calcification.
Background
With the improvement of science and technology, the living standard of people is effectively improved, and meanwhile, people who are obese, do not exercise, stay up all night and the like are more and more, so that the incidence of vascular calcification is increased.
The clinical treatment method aiming at the vascular calcification generally adopts a physical treatment method of stent or balloon dilatation in combination with drug assistance for treatment, and due to the limitations of the existing auxiliary device and drug treatment, the expected treatment effect can be achieved only on mild calcification lesions, and the method has great difficulty for moderate and severe calcification lesions. Related companies at home and abroad disclose related technologies of pulse catheters for severe calcified lesions, namely, electrodes are arranged in the catheters, shock waves are generated in the catheters through high-voltage pulses, and then the shock waves are guided to calcified lesions to crack calcified layers, so that blood flow in blood vessels is improved. However, in this technique, the electrode ring is used for discharging, and the ring electrode has the advantage of strong corrosion resistance, but causes the rigidity of the front end of the catheter to be enhanced, which increases the difficulty for an operator during the introduction of the blood vessel, and in addition, the electrode ring increases the diameter of the inner tube, so that the inner tube is closer to the wall of the air sac, and the air sac is easy to rupture during the use to cause the problem of liquid leakage.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an auxiliary device for treating vascular calcification, which is used for improving a vascular channel for a patient suffering from severe vascular calcification.
In order to solve the above technical problem, the present invention provides an auxiliary device for treating vascular calcification, comprising: the device comprises a device body and a generator, wherein the generator is electrically connected with the device body through a joint, the device body is provided with a tube core and an expansion tube wall at an operation section of the device body, the expansion tube wall is sleeved on the periphery of the tube core, and the device body at two ends of the expansion tube wall is respectively provided with a developing ring; at least two electrode leads are uniformly distributed in the tube core along the circumference, and all the electrode leads can switch the positive and negative electrodes through a discharge control device and are electrically connected with the generator; at least one pipe wall gap is arranged on the outer wall of the pipe core corresponding to the expansion pipe wall, and the electrode lead is directly communicated with the isolation cavity between the pipe core and the expansion pipe wall through the pipe wall gap.
According to the technical scheme, the center of the tube core is also provided with a supporting wire guide cavity, and all the electrode leads are uniformly distributed by taking the supporting wire guide cavity as the center.
According to the technical scheme, the number of the electrode leads is 3-4; all the pipe wall gaps are positioned between the two developing rings.
According to further optimization of the technical scheme, the front end of the device body is also provided with a liquid injection port, and the liquid injection port is communicated with the isolation cavity through a pipeline.
According to the further optimization of the technical scheme, the liquid cavity is further arranged in the tube core and is communicated with a liquid injection port arranged at the front end of the device body through a pipeline.
According to the technical scheme, the discharge control device comprises a positive electrode and negative electrode exchange unit, a single chip microcomputer and selection switches, wherein the positive electrode and negative electrode exchange unit, the single chip microcomputer and the selection switches are electrically connected with one another, the number of the selection switches is the same as that of the electrode leads, the single chip microcomputer is used for controlling the positive electrode and negative electrode exchange unit and the selection switches to work, and the positive electrode and negative electrode exchange unit exchanges the discharge direction by switching the positive electrode and the negative electrode of the electrode leads.
According to the technical scheme, the anode and cathode exchanging unit comprises an anode exchanging unit and a cathode exchanging unit, and each exchanging unit comprises two switching tubes which are connected in series.
According to the further optimization of the technical scheme, the switch tube is any one of mosfet, igbt and a relay.
According to the technical scheme of the invention, the diameter of the electrode lead is 0.1-0.2mm.
The technical scheme of the invention has the following advantages:
1. according to the auxiliary device for treating the calcification of the blood vessel, after the expanded vessel wall is attached to the vessel wall, the pulse sound wave generating source emits the shock wave to impact the calcified lesion, so that the calcified lesion is broken, then the isolation cavity is continuously pressurized, the outer diameter of the expanded vessel wall is increased, the calcified lesion is further expanded, and the purpose of treating the calcified lesion is achieved. The device body comprises a tube core, wherein at least two electrode leads are arranged in the tube core, a tube wall gap is formed in the tube core, the electrode leads are directly exposed to form a pulse generating source, after the electrode leads are respectively and alternately connected with a positive electrode and a negative electrode in work, high-voltage breakdown conductors are generated between the exposed conductors, and liquid is vaporized to form shock wave shock calcification lesions.
2. According to the auxiliary device for treating vascular calcification, the electrode leads are designed in the tube core, and the positive electrode and the negative electrode of the leads during discharging are switched through the discharging control device, so that the energy with the same frequency can be released, the ablation frequency of a single conductor is reduced, the excessive ablation of the conductor is avoided, and the service life of the electrode leads is prolonged; meanwhile, the accuracy of the release of the shock wave is enhanced by controlling the discharge breakdown among different electrode wires.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic overall structural diagram of an auxiliary device for treating vascular calcification according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a tube core in the auxiliary device for treating calcification of blood vessel according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of a tube core in the auxiliary device for treating calcification of blood vessel according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a discharge control device in the auxiliary device for treating vascular calcification, provided by the semi-embodiment of the invention;
fig. 5 is a schematic structural diagram of a discharge control device in the auxiliary device for treating vascular calcification according to the embodiment of the present invention.
Description of the reference numerals:
1. a joint; 2. a liquid injection port; 3. a device body; 31. expanding the tube wall; 32. a die; 33-a liquid chamber; 34. a supporting guidewire lumen; 35. an electrode lead; 4. an isolation chamber; 5. a pipe wall gap; 6. and a developing ring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to fig. 1-4, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment provides an auxiliary device for treating vascular calcification as shown in fig. 1, which comprises a device body 3, a joint 1 and an injection port 2, wherein an operation section is arranged at the front end of the device body 3, a tube core 32 and an expansion tube wall 31 are arranged at the operation section, the injection port 2 and the joint 1 are arranged at the outer end of the guide device body 3, the operation section is arranged at the far end of the device body 3, the far end of the device body 3 extends into a human blood vessel, and an operator controls the operation section to perform operation treatment at the near end of the device body 3 through a generator. An electrode lead 35 is arranged in a tube core 32 on an operation section of the device body 3, a tube wall gap 5 is formed in the side wall of the tube core 32 at the operation section, specifically, an annular gap or a square local gap is formed on the circumference of the tube core, the electrode lead 35 arranged inside is exposed, an insulating coating on the surface of the exposed electrode is removed, a pulse sound wave generating source is formed, an expansion tube wall 31 is arranged on the operation section, and liquid is injected into an isolation cavity 4 between the tube core 32 and the expansion tube wall 31; when the device works, high voltage is input through the generator, so that the electrode lead 35 generates breakdown at the pipe wall gap 5 of the pipe core 32 on the operation section, a large amount of energy is released, liquid is vaporized instantly, shock waves are generated, calcified blood vessels at the pathological change part are crushed, then liquid is injected into the isolation cavity 4, the expansion pipe wall 31 continues to expand, and the circulation of blood of the blood vessels is recovered.
Compared with the pulse sound wave generating source formed by the electrode lead 35 and the annular electrode in the prior art, the pulse sound wave generating source on the die 32 is designed to have better flexibility; in addition, because the tube core 32 is designed in a subtraction mode in the technical scheme, the distance between the electrode lead 35 and the expansion tube wall 31 in the operation section is farther relative to the annular electrode, so that the probability of breakdown of the expansion tube wall 31 in operation is greatly reduced, and the risk of leakage of the expansion tube wall 31 is reduced. In the prior art, in order to solve the problem that the expansion pipe wall 31 is easily broken down, the thickness of the expansion pipe wall 31 is generally increased, but the increased thickness further reduces the flexibility of the working section, and increases the difficulty of guiding in use.
In an embodiment of the technical scheme of the method, the number of the pulse acoustic wave generating sources in the operation section is determined according to the length of the isolation cavity 4 (or the span of the expansion pipe wall 31 in the length direction), preferably, 1 to 6 pipe wall notches 5 can be formed in the pipe core 32 at the operation section, that is, 1 to 6 pulse acoustic wave generating sources can be formed, the developing rings 6 at the operation section on the device body 3 are taken as boundaries, and all the pulse acoustic wave generating sources are uniformly distributed between the two developing rings 6. When one electrode lead is exposed, another pipe wall gap is required to be arranged nearby to expose the other electrode lead, and thus the two pipe wall gaps form a pulse sound wave generating source; when the two electrode leads are exposed from the pipe wall gap, the two electrode leads are fixed by the plastic material of the pipe core to prevent the displacement of the pipe wall caused by the impact force during discharging, and thus the two electrode leads of the pipe wall gap form a pulse sound wave generating source. For example, when the length of the working section is 10mm-30mm, 1-3 pulse sound wave generating sources can be arranged; when the length of the working segment is 40mm-60mm, 4-6 pulse sound wave generating sources can be arranged. As shown in figure 2, the length of the operation section of the auxiliary device for treating vascular calcification is 50mm, and 4 pulse sound wave generating sources are arranged. That is, 4 tube wall notches 5 are formed in the tube core 32, so that the electrode lead 35 is exposed, the depth of the tube wall notch 5 is preferably 1/2 of the depth of the electrode lead 35, the tube wall notch 5 in fig. 2 only needs to be formed in the surface of the tube core, so that the exposed electrode lead 35 is exposed, the insulating material in the central part of the tube core is also cut off in order to better display all the electrode leads in the figure, and the display mode is also adopted in the same way as in fig. 3.
In the technical scheme of the invention, a plurality of electrode leads 35 in the tube core 32 are provided, the plurality of electrode leads 35 are uniformly distributed on the annular circumference of the tube core 32 by taking the supporting wire guide cavity 34 arranged at the central part of the tube core 32 as a center, the plurality of electrode leads 35 can be connected with the positive electrode or the negative electrode as required, during operation, only the positive electrode and the negative electrode are simultaneously arranged in the conductor connected with the electrode through the discharge control device, positive and negative alternate discharge can be realized between all the paired electrode leads 35 under the control of the discharge control device, and the alternate discharge breakdown among different conductors is controlled according to the position of calcified lesion to release sound wave energy, so that the impact treatment of different side focuses can be carried out in the peripheral side of the blood vessel, and the electrode breakdown direction is adjustable relative to the prior art, thereby being more beneficial to the treatment of eccentric calcification of the blood vessel. Meanwhile, in the prior art, the burning resistance of the electrode is increased through the electrode ring, because the thickness and the volume of the electrode ring are large, the technical scheme of the application is that a plurality of electrode conductors are uniformly distributed on the annular circumference of the tube core 32. The alternate discharge is carried out by different positive and negative electrode pairs, and the positive and negative electrodes are also alternately discharged by the discharge control device, so under the condition of releasing the same energy, if 4 electrode leads 35 are adopted for discharging, the ablation frequency of a single electrode lead 35 is reduced by 2/3 or 1/2, the service time of the electrode lead 35 is prolonged, the excessive ablation of a conductor is avoided, and the service life of the catheter is prolonged.
The number of the electrode leads is 3-4; all the tube wall gaps 5 are located between the developing rings 6 at two ends of the expansion tube wall 31, the number of the tube wall gaps 5 which are arranged on the circumferential side and the transverse side of the side wall of the tube core can be specifically selected according to the length of the vascular lesion, the number of the tube wall gaps corresponds to the number of pulses, and the range of the shock wave treatment is further controlled.
As shown in fig. 4, the discharge control device is provided with a positive electrode and negative electrode exchanging unit, a single chip microcomputer and a selection switch, which are electrically connected to each other, wherein the number of the selection switches is the same as the number of the electrode wires and corresponds to the number of the electrode wires one by one, the single chip microcomputer is used for controlling the positive electrode and negative electrode exchanging unit and the selection switch to operate, and the positive electrode and negative electrode exchanging unit exchanges the discharge direction by switching the positive electrode and the negative electrode of the electrode wires 35. The positive and negative pole exchanging unit comprises a positive pole exchanging unit and a negative pole exchanging unit, and each group of exchanging units comprises two switch tubes which are connected in series. The design is that firstly, the breakdown among different wires can be controlled, and the direction of the shock wave is controlled; and secondly, the anode and the cathode of the electrode can be switched, the corrosivity of a single electrode during discharging is reduced, the service life of the discharging electrode in the catheter is prolonged, and the total available pulse frequency of the disposable catheter is increased. As it is determined that AC electrode breakdown in fig. 4 is required, energy is released: firstly, an electrode lead 35A \\Cis respectively connected with H1-and H2-through a K1 and K3 control switch; then, when QH1 and QH4 are turned on simultaneously, it is considered as a forward discharge; after 0.5 second interval, QH1 and QH4 are disconnected; when QH2 and QH3 are simultaneously conducted, negative discharge is considered, and after 0.5 second interval, QH2 and QH3 are disconnected; a positive and negative going periodic discharge is formed. Preferably, the switch tube is any one of a mosfet, an igbt and a relay.
Through the control of the electrodes and the alternate discharge of the positive electrode and the negative electrode, and the matching of the staggered design of the electrode leads 35 between the adjacent pulse points, when the electrodes are broken down, the generated shock waves can cover a plurality of directions of the circumference at the same time, and compared with the prior art, the auxiliary device has better treatment effect on the eccentric calcification patients of blood vessels.
According to further optimization of the technical scheme, the front end of the device body 3 is also provided with a liquid injection port 2, the liquid injection port 2 is communicated with the isolation cavity 4 through a pipeline, the expansion pipe wall 31 is a secondary expansion pipe wall 31, the pressure borne by the secondary expansion pipe wall 31 in an initial state is 2-4atm, and the pressure borne by the secondary expansion pipe wall in an expanded state is 6-10atm. When the calcified blood vessel dilator is used, liquid can be injected into the isolated cavity 4, so that the internal pressure of the expanded vessel wall 31 is 2-4atm, the expanded vessel wall is in contact with the inner wall of the blood vessel, pulse therapy is carried out, after the calcified lesion is ruptured, the liquid is injected again through the liquid injection port 2, so that the internal pressure of the expanded vessel wall 31 is 6-10atm, the outer diameter is increased, the calcified blood vessel is expanded and supported, and a better therapeutic effect is achieved.
In a particular embodiment, four electrode wires 35 are disposed within the die 32 and are evenly distributed around the annular circumference of the die 32. The four electrode wires 35 are connected with the anode as long as one of A or B is connected with the anode, the rest of C or D is connected with the cathode, and the discharge breakdown between the anode connecting conductor (A or B) and the cathode linking conductor (C or D) is realized. The plurality of electrode leads 35 are uniformly distributed on the annular circumference of the tube core 32, because the electrode leads 35 are ablated by the discharge process and the energy is released for the same time, the ablation time of a single electrode lead 35 is reduced, the service life is prolonged, and the phenomenon that the expansion tube wall is cracked in the expected service life caused by continuous discharge of the electrode leads 35 is reduced.
As an alternative embodiment, a fluid chamber 33 structure may also be provided within the core 32, with a support guidewire chamber 34, electrode lead 35, and fluid chamber 33 being provided directly within the core 32. Further integrating the catheter. The catheter has higher integration level, reduces the number of conductors, reduces the outline outer diameter of the catheter structure, and is not easy to cause balloon ablation.
In the embodiment of the technical scheme of the application, the electrode lead 35 with the insulating layer is embedded in the tube core 32 during the initial production, redundant material and the insulating layer of the tube core 32 on the surface are removed at the tube wall gap 5 in a laser ablation, physical cutting and other modes, so that part of the electrode lead 35 inside is exposed to form a pulse generating source, under the action of pulse high voltage, discharge breakdown is carried out between adjacent electrodes (such as the layout mode of the electrode lead in the tube core in fig. 5) of the electrode lead 35, huge energy is released instantaneously, and liquid is rapidly vaporized and expanded, and shock waves are released to act on surrounding media, namely calcified lesions.
The auxiliary device for treating vascular calcification, which is adopted by the technical scheme of the invention, impacts calcified lesions through pulse sound waves, after discharge, liquid in the isolation cavity 4 or the liquid cavity 33 generates instant physical change to generate pressure waves, when the pressure waves meet tissues with wave impedance difference or acoustic mismatching, local field effect can be generated, solid substances on a conduction interface are shattered by squeezing, crushing, shearing and other forces on the calcified lesions, and the shattered calcified lesion tissues are still kept in situ, so that the integrity of intima of blood vessels is not influenced, calcification is loosened, and the compliance of blood vessels can be restored through vascular remodeling. The penetration force of the sound pressure waves to calcified tissues is weak, most wave energy is consumed at calcified lesion positions, and calcified tissues are cracked; the soft tissue penetrating power is strong, the soft tissue can be continuously transmitted in liquid or soft tissue similar to the liquid and gradually attenuated, and the soft tissue is not damaged.
The application method of the auxiliary device for treating vascular calcification disclosed by the invention comprises the following steps: the device body 3 is led into a blood vessel, so that the operation section of the device body 3 reaches the calcified lesion position of the blood vessel of a patient, liquid is injected into the isolation cavity 4 through the liquid injection port 2, the expansion tube wall 31 is expanded for the first time and is tightly attached to the blood vessel wall, high-voltage discharge is carried out under the control of the discharge control device, and a doctor controls the discharge time and frequency according to the condition of the patient; when the calcified lesion on the peripheral side of the blood vessel is broken or smashed, liquid is injected into the isolation cavity 4 again through the liquid injection port 2, so that the expansion tube wall 31 is expanded for the second time, the diseased blood vessel is expanded, and a better treatment effect is achieved.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (7)
1. An aid for treating vascular calcification, comprising: the device comprises a device body and a generator, wherein the generator is electrically connected with the device body through a joint; at least two electrode leads are uniformly distributed in the tube core along the circumference, and all the electrode leads are electrically connected with the generator through the replaceable electrodes of the discharge control device; the discharge control device comprises a positive and negative electrode exchange unit, a singlechip and selection switches which are electrically connected with each other, the number of the selection switches is the same as that of the electrode leads and corresponds to the number of the electrode leads one by one, the singlechip is used for controlling the positive and negative electrode exchange unit and the selection switches to work, and the positive and negative electrode exchange unit exchanges the discharge direction by switching the positive and negative electrodes of the electrode leads; the positive and negative pole exchanging unit comprises a positive pole exchanging unit and a negative pole exchanging unit, and each group of exchanging units comprises two switch tubes which are connected in series.
2. An aid for treating vascular calcification as recited in claim 1, wherein a support guidewire lumen is further provided in the center of said tubular core, and all of said electrode wires are uniformly distributed about said support guidewire lumen.
3. An aid device for the treatment of vascular calcification as recited in claim 2, wherein the number of said electrode leads is 3-4; all the pipe wall gaps are positioned between the two developing rings.
4. An auxiliary device for treating vascular calcification as recited in claim 1, wherein a liquid injection port is further provided at the front end of the device body, and the liquid injection port is communicated with the separation chamber through a pipeline.
5. The assistant device for treating vascular calcification as recited in claim 1, wherein a liquid chamber is further disposed in the tube, and the liquid chamber is communicated with a liquid injection port disposed at the front end of the device body through a pipeline.
6. The auxiliary device for treating vascular calcification as defined in claim 1, wherein the switch tube is any one of a mosfet, an igbt and a relay.
7. An aid device for the treatment of vascular calcification as recited in claim 1, wherein said electrode lead has a diameter of 0.1-0.2mm.
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| CN202211443101.7A CN115624367B (en) | 2022-11-18 | 2022-11-18 | Auxiliary device for treating vascular calcification |
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| CN202211443101.7A CN115624367B (en) | 2022-11-18 | 2022-11-18 | Auxiliary device for treating vascular calcification |
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| CN113194855A (en) * | 2019-08-06 | 2021-07-30 | 沛嘉医疗科技(苏州)有限公司 | Device and method for treating calcification of heart valves or blood vessels |
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