CN113633346B - Electrode device and shock wave generation system - Google Patents
Electrode device and shock wave generation system Download PDFInfo
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- CN113633346B CN113633346B CN202111014462.5A CN202111014462A CN113633346B CN 113633346 B CN113633346 B CN 113633346B CN 202111014462 A CN202111014462 A CN 202111014462A CN 113633346 B CN113633346 B CN 113633346B
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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
- 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
- A61B17/22022—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 using electric discharge
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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
-
- 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
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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
- A61B2017/22094—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 for crossing total occlusions, i.e. piercing
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention provides an electrode device and a shock wave generating system, wherein the device comprises a conduit and an electrode unit, the electrode unit comprises a plurality of electrodes and an annular member which is circumferentially arranged outside the conduit around the conduit, the plurality of electrodes are circumferentially distributed along the conduit, each electrode is respectively penetrated in the annular member or between the annular member and the conduit, and part of circumferential surfaces are exposed, one or more conducting spaces are formed on the annular member and are used for communicating the exposed surfaces of two adjacent electrodes with the space outside the electrode device, so that when conducting spaces are filled with conductive liquid and the electrode device is connected with electricity, shock waves are formed in the conducting spaces and released outwards from openings of the conducting spaces. The invention realizes the best vibration wave effect by arranging the electrode unit and the insulating sleeve and matching with and adjusting the conducting space on the insulating sleeve to control the position, the direction and the size of the generated shock wave.
Description
Technical Field
The invention belongs to the technical field of medical equipment, and particularly relates to an electrode device and a shock wave generation system.
Background
Cardiovascular stenosis refers to arterial and venous blood vessels of a human body, which are wrapped by coronary, peripheral, intracranial and other blood vessels, due to abnormal lipid metabolism, lipids in blood deposit on an originally smooth blood vessel intima and gradually accumulate into atheromatous lipid plaques, and as time goes by, the plaques increase and even calcification to cause the stenosis of blood vessel cavities, so that blood flow is blocked, and the downstream blood vessels and the organism are ischemic, so that corresponding clinical manifestations are generated. If the stenosis occurs in the coronary artery, palpitation, chest pain, dyspnea and angina can occur, and serious cases can lead to myocardial ischemia or myocardial necrosis; if it occurs peripherally, it can cause a decrease in skin epidermis temperature, muscular atrophy, intermittent lameness and even necrosis or amputation of the distal limb; if it occurs intracranially, dizziness, syncope and even brain tissue damage and brain dysfunction can occur.
Referring to chinese patent CN111568500a, a vascular recanalization system for treating vascular calcification lesions is disclosed, which comprises a balloon, an energy generation controller and a catheter, wherein the catheter comprises a main body tube, one end of the catheter is connected with the energy generation controller, the main body tube at the other end of the catheter is connected with one end of the balloon, the balloon mainly comprises a balloon main body, an inner tube and an electrode pair, the inner tube is arranged inside the balloon main body, and the energy generation controller can send and regulate a vibration signal with specific frequency to enable the electrode pair to generate a shock wave.
However, the electrodes of the electrode pairs in the balloon are annular, the whole electrodes are conductive and correspond to countless points which are parallel, the area on the electrodes where the oscillating wave is generated cannot be controlled, in addition, the electrode pairs in the balloon are required to be connected with the energy generation controller through wires, on one hand, the wires are complex, on the other hand, the wires are arranged inside the catheter, and the electrodes of each electrode pair are required to be connected with the wires generally, so that the outer diameter of the catheter is overlarge due to the overlarge number of the wires, and when the catheter is used for lesion sites with smaller blood vessels, the catheter with overlarge outer diameter cannot smoothly reach the lesion sites, so that the effect of the system on lesion treatment is weakened.
Disclosure of Invention
The invention aims to provide an electrode device for treating vascular calcification lesions and a shock wave generation system, which are used for solving the problem that the area and the direction of the generated shock wave cannot be controlled.
In order to achieve the above purpose, the invention adopts a technical scheme that:
an electrode device comprises a catheter and an electrode unit, wherein the electrode unit comprises a plurality of electrodes, the electrode device further comprises an annular member circumferentially arranged outside the catheter around the catheter, the plurality of electrodes are distributed along the circumference of the catheter, each electrode is respectively penetrated in the annular member or between the annular member and the catheter, and part of the circumferential surface is exposed, one or more conducting spaces are formed on the annular member and used for communicating the exposed surfaces of two adjacent electrodes with the space outside the electrode device, so that when the electrode device is connected with electricity, shock waves are formed inside the conducting spaces and released outwards from the opening of the conducting spaces, and the annular member is an insulator.
Preferably, the electrode unit includes a positive electrode for connecting the positive electrode, a negative electrode for connecting the negative electrode, and one or more intermediate electrodes, the positive electrode and the negative electrode being disposed adjacent to and insulated from each other, the conducting space being provided between the positive electrode and the intermediate electrode, and between the negative electrode and the intermediate electrode, respectively, and when there are a plurality of the intermediate electrodes, the conducting space is also formed between adjacent two intermediate electrodes.
Preferably, in each electrode unit, the positive electrode and the negative electrode are respectively one, the number of the intermediate electrodes is 1,2,3, 4, 5, 6 or more, and further preferably, the total number of the positive electrode, the negative electrode and the intermediate electrode is 3-10.
Preferably, one or more conducting spaces between two adjacent electrodes are provided, and when a plurality of conducting spaces are provided, a plurality of conducting spaces are provided along the length direction of the annular member, and the conducting spaces are independent of each other.
Preferably, a plurality of said through spaces are distributed along the circumference of the catheter, seen in a cross section of said electrode device; and the plurality of conducting spaces are positioned at the same position or at different length positions in the length direction of the electrode device or are positioned at the same position in the length direction of the electrode device and at different length positions in the longitudinal section of the electrode device.
Preferably, when the electrode device works, the conducting space is filled with liquid, and the current sequentially passes through the positive electrode, one or more middle electrodes and the negative electrode to form a current path.
Preferably, the proportion of the exposed surface of each electrode to the surface area of the electrode is greater than 0 and less than 100%.
Preferably, the annular member includes an insulating sleeve having a connection hole in a middle portion for sleeving the catheter, a plurality of through holes extending in a length direction thereof are further provided in the insulating sleeve, the plurality of through holes are distributed around the connection hole, the plurality of electrodes respectively pass through the plurality of through holes, an outwardly opened groove is formed in at least one side of the through holes, and the groove is opened with the through holes, so that at least a part of surfaces of the electrodes in the through holes are exposed, and an inner space of the groove forms the conducting space.
Preferably, the aperture of the perforation is smaller than the wall thickness of the insulating sleeve, and the depth of the groove is smaller than or equal to the wall thickness of the insulating sleeve.
The insulating sleeve comprises a sleeve body made of a non-conductive material; or the insulating sleeve comprises a sleeve body made of conductive material or non-conductive material and an insulating coating arranged on the surface of the sleeve body.
Preferably, the annular member is an integral molding.
Preferably, the annular member comprises an annular sleeve body and a filling body, the sleeve body is sleeved outside the catheter, the filling body is filled between the sleeve body and the catheter, an opening-outward groove is formed in the same part of the sleeve body and the filling body, at least part of the surface of the electrode is exposed at the opening, and the inner space of the groove forms the conducting space.
Preferably, the conduit has two relatively distant ends, the annular member being disposed proximate one of the two ends.
Preferably, the annular member is provided with one or more, and when the annular member is provided in plurality, a plurality of the annular members are distributed along the axial direction of the catheter; the electrodes are elongated, and each electrode is respectively arranged in the annular member or between the annular member and the catheter in a penetrating manner along the length direction of the electrode, and further preferably, the electrodes are parallel to the catheter.
Preferably, the plurality of electrodes are uniformly distributed around the catheter.
Preferably, the section of the catheter is circular or polygonal, or a groove for placing the electrode is arranged outside the catheter along the axial direction of the catheter.
The invention adopts another technical scheme that:
A shock wave generating system comprises an electrode device and a balloon, wherein the insulating sleeve is positioned in the balloon.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
According to the invention, the annular member and the electrode unit are arranged, the conducting space is formed on the annular member, specific directional shock waves can be generated in the conducting space, and the position, the direction and the size of the generated shock waves can be controlled by adjusting the position, the shape, the number and the size of the conducting space on the annular member, so that the best shock wave effect is achieved; the annular member can limit the movement of the electrode unit, so that the conducting space position, the conducting direction and the conducting shape are stable, the integral installation is more stable, and the discharge is more stable and safer when the catheter is used; and the structure is simple and easy to realize.
Drawings
Fig. 1 is a schematic structural view of an electrode device according to a first embodiment;
fig. 2 is a schematic view of another structure of an electrode device according to the first embodiment;
Fig. 3 is a schematic structural view of an electrode device according to a second embodiment;
fig. 4 is a schematic structural view of an electrode device according to the third embodiment;
fig. 5 is a schematic view of another structure of an electrode device according to the third embodiment;
fig. 6 is a schematic view of another structure of an electrode device according to the third embodiment;
fig. 7 is a perspective view showing an electrode device according to a third embodiment;
Fig. 8 is a schematic structural diagram of a third embodiment in which two conducting spaces are formed along the axial direction of the annular member;
fig. 9 is a schematic structural view of an electrode device according to a fourth embodiment;
fig. 10 is a schematic structural view of an electrode device according to a fifth embodiment;
FIG. 11 is a schematic view of a configuration of the conductive space on the annular member;
FIG. 12 is a schematic view of a catheter;
FIG. 13 is a schematic diagram of a shock wave generating system;
Fig. 14 is an enlarged view of a portion a in fig. 13.
In the above figures:
1. The catheter, 11, groove, 2, annular component, 21, conduction space, 22, insulation structure, 23, perforation, 24, connecting hole, 25, sleeve body, 26, filler, 3, positive electrode, 4, negative electrode, 5, intermediate electrode, 6-energy generating unit, 7-balloon, 8-handle, 9-marker ring.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The electrode device as shown in fig. 1 to 12, comprising a catheter 1, an electrode unit and an annular member 2, the annular member 2 being an insulator, wherein: the annular member 2 surrounds the circumference of the catheter 1 and is arranged outside the catheter 1, a plurality of electrodes are distributed along the circumference of the catheter 1, each electrode penetrates through the annular member 2 or between the annular member 2 and the catheter 1, part of the circumferential surface is exposed, one or more conducting spaces 21 distributed along the circumference or the axial direction of the annular member are formed on the annular member 2, the conducting spaces 21 are used for communicating the exposed surfaces of two adjacent electrodes with the space outside the electrode device, so that when the conducting spaces are filled with conductive liquid and the electrode device is connected with electricity, shock waves are formed inside the conducting spaces 21 and released outwards from the openings of the conducting spaces 21. The conductive liquid may be a mixed solution of contrast medium and physiological saline.
The catheter has two relatively distant ends, the annular member being disposed adjacent one of the ends, one of which is adjacent the lesion site, and in use the annular member 2 is disposed adjacent the lesion site, such as where the annular member 2 is disposed at or adjacent one end of the catheter 1.
The exposed surface of the electrode means that the conductive portion of the electrode is exposed at the opening of the conducting space, and the exposed surface of the electrode can be contacted with the conductive solution when the conducting space is filled with the conductive liquid, and the area of each exposed surface of the electrode is set according to the required shock wave intensity and the lesion position, for example, the proportion of each exposed surface of the electrode to the surface area of the electrode is more than 0 and less than 100%, and the range can be 1% -70%, such as 10%, 20%, 30%, 40%, 50%, 60% or 70%, etc.
Seen in cross section of the electrode device (as in the direction of fig. 1), a plurality of through spaces are distributed along the circumferential direction of the catheter, each through space being in the shape of a sector, square, circle or any other shape, see fig. 8 and 11; the plurality of conducting spaces are positioned at the same position or at different length positions in the length direction of the electrode device or part of the conducting spaces are positioned at the same position in the length direction of the electrode device and part of the conducting spaces are positioned at different length positions when seen from the longitudinal section of the electrode device (along the length direction of the catheter). That is, the conduction space 21 may be located in one interface or in a staggered position.
When the conducting spaces are arranged in plurality, the conducting spaces are arranged along the length direction of the annular component, and the conducting spaces are mutually independent and communicated, and the mutually independent refers to a gap between the two adjacent conducting spaces, as shown in fig. 8.
When the conduction space between two adjacent electrodes is provided with one: the number of the conducting spaces 21 is 1 less than the total number of the electrodes, for example, when the number of the electrodes is three, the number of the conducting spaces 21 is two; when the number of the electrodes is four, the number of the conducting spaces 21 is three. According to the lesion to be treated, a corresponding number of electrodes are provided, so that the largest number of conducting spaces 21 can be provided according to the number of electrodes, and the number of conducting spaces 21 can be 2 or more smaller than the total number of electrodes.
When the conduction space between two adjacent electrodes is provided in plural: the electrodes have a certain length, and the number of the conducting spaces 21 may be greater than or equal to the total number of the electrodes, for example, when the number of the electrodes is two, the conducting spaces 21 are provided in two or more, and a plurality of the conducting spaces 21 are provided along the axial direction of the annular member 2 (i.e., the extending direction of the electrodes), referring to fig. 8, and a gap is maintained between every two adjacent conducting spaces 21. When the number of electrodes is three, the conductive space 21 may be provided as three or more. When the number of electrodes is three or more, the conducting space 21 may be set to three or more.
The conducting space 21 provided on the annular member 2 can generate shock waves in a specific direction to treat a specific lesion position. The conducting space 21 is distributed along the axial direction and/or the circumferential direction of the annular member 2 to form a plurality of areas for generating shock waves, so that the periphery (whole circle) of the catheter 1 can generate shock waves in a specific direction, and a plurality of specific lesion positions can be treated to act on calcified lesion blood vessels of blood vessels with larger areas, thereby the calcified plaque is disintegrated, and the treatment effect is improved. The conducting space 21 may be circular, oval, square, trapezoid or other realizable shapes, for example, the conducting space 21 gradually increases from inside to outside, the inner finger approaches the center of the catheter 1, the outer finger approaches the direction of the catheter 1, that is, the opening of the hole near the outside of the catheter 1 is larger than the opening of the hole near the catheter 1, so that the conducting space 21 forms an oscillation wave gradually spreading outwards, the area of calcified impact of the oscillation wave is larger, and calcified lesions with larger area are crushed.
The position, shape and size of the conducting space 21 may be varied to control the position, direction and/or size of the shock wave generation.
The annular member 2 is an insulating member, and its specific structure is as follows:
when the annular member 2 includes an insulating sleeve having a connecting hole 24 at the middle for sleeving the catheter 1, a plurality of through holes 23 extending along the length direction thereof (each electrode is respectively penetrated in the annular member 2 along the length direction thereof and is positioned in the corresponding through hole 23, one electrode is positioned in one through hole 23), the plurality of through holes 23 are distributed around the connecting hole 24, the plurality of electrodes respectively penetrate through the plurality of through holes 23, the insulating sleeve is formed with a groove opening outwards at least one side of the through hole 23, and the groove is opened with the through hole 23, so that at least part of the surface of the electrode positioned in the through hole 23 is exposed, and the inner space of the groove forms a conducting space 21. The aperture of the perforation 23 is smaller than the wall thickness of the insulating sleeve, the depth of the groove is smaller than or equal to the wall thickness of the insulating sleeve, the bottom of the groove extends to the perforation 23, and the depth of the groove is smaller than the wall thickness of the insulating sleeve; or the bottom of the groove may extend to the outer wall of the conduit 1, where the depth of the groove is equal to the wall thickness of the insulating sleeve.
In this case, the ring member 2 is of a solid structure except for the position of the through space 21 to the connection hole 24, and when assembled: the annular member 2 is first placed over the catheter 1 at the desired location and the electrode is then inserted into the upper bore 23. Or when assembled: the electrode is inserted into the through hole 23 on the annular member 2, and then the annular member 2 is sleeved outside the catheter 1. When the electrode is in the perforation 23 (if the perforation 23 is internally provided with the positive electrode 3 and the negative electrode 4, two ends of the perforation 23 with the electrode are placed along the length direction, one end is sealed by glue injection, the other end is sealed by glue injection after the electrode in the perforation is connected with an external lead, or the electrode extends out of the other end to be connected with wires), the diameter of the electrode is slightly smaller than that of the perforation 23, and the electrode cannot shake in the perforation 23 and has fixed position. Or the electrode penetrates into the perforation 23 and is filled with insulating glue for bonding, and when the electrode is used, the glue on the electrode exposed at the conducting space 21 is removed, so that the electrode can be electrified for use.
Or the ring-shaped member 2 is made of an insulating jelly, and when the electrode is assembled, the electrode is fixedly placed outside the catheter 1 (such as adhesion), then the insulating jelly is coated outside the electrode to form a sleeve body, for example, the electrode with a preset length is coated, so that the electrode cannot be exposed, after the insulating jelly is solidified, a groove is formed in the insulating jelly (the material is removed), so that at least part of the surface of the electrode is exposed at the opening of the groove, and the inner space of the groove forms a conducting space 21.
The insulating sleeve comprises a sleeve body made of non-conductive materials, wherein the sleeve body is an integrally formed part, such as a structural part formed by injection molding or other forming modes, or a shape structural part made of jelly such as epoxy glue or ultraviolet curing glue through a mold with corresponding appearance, or a coating body formed by coating the electrode.
Or the insulating sleeve comprises a sleeve body made of conductive materials or non-conductive materials and an insulating coating arranged on the surface of the sleeve body, and the sleeve body can be provided with perforations and grooves, so that the structure has higher strength and strong impact resistance. The non-conductive material is polyimide, epoxy glue or ultraviolet curing glue, and the conductive material is metal. When the sleeve body is made of conductive materials, the inner walls of the conducting space 21 and the inner walls of the through holes 23 are coated with insulating coatings.
Or the annular member 2 comprises an annular sleeve body 25 and a filling body 26, the annular sleeve body 25 and the filling body 26 are made of non-conductive materials, the sleeve body 25 is sleeved outside the catheter 1, the filling body 26 is filled between the sleeve body 25 and the catheter 1, the same part of the sleeve body 25 and the filling body 26 is provided with a groove with an outward opening, at least part of the surface of the electrode is exposed at the opening of the groove, and the inner space of the groove forms a conducting space 21. In this case, the sleeve body 25 is in a hollow ring shape, that is, the outer wall of the sleeve body 25 is thin and has a connecting hole 24 for the catheter 1 to pass through, when the electrode is fixedly placed outside the catheter 1 (such as bonding) during assembly, the sleeve body 25 is sleeved outside the catheter 1, at this time, the inner wall of the sleeve body 25 is not contacted with the electrode, a filling body 26 (such as insulating gel forming filling body 26) is filled between the sleeve body 25 and the electrode after positioning, so that the electrode in the sleeve body 25 is covered by insulating material, then the same part of the sleeve body 25 and the filling body 26 is grooved (the material of the same part is removed), at least part of the surface of the electrode is exposed at the opening, and the inner space of the groove forms a conducting space 21.
The annular member 2 is in a closed ring shape, such as a circular ring, a polygonal ring (such as a square ring and a triangular ring), an elliptical ring or any other shape; or the annular member 2 is closed in a non-annular shape, such as a C-shape, and has a ring shape with a notch.
The annular member 2 may have a uniform thickness or a non-uniform thickness except for the position of the through space 21, and is not affected in use. The annular member 2 can limit the movement of the electrode, ensure the position and the shape of the conduction space 21 to be stable, and ensure that the whole installation is stable, and the discharge is stable and safe when the catheter 1 is used.
The section of the conduit 1 is circular or polygonal, for example, the conduit 1 can be extruded into a circular tube conventionally, or a plurality of grooves 11 (recessed in the center direction of the conduit 1) for placing electrodes are arranged outside the conduit 1 along the axial direction of the conduit, i.e. one electrode is placed in each groove 11, so that wiring is facilitated, and the conducting space 21 on the corresponding annular member 2 is convenient. For example, the conduit 1 is a grooved angular tube, such as a pentagonal, hexagonal, six-grooved tube, or the like.
The electrode is made of metal, conductive adhesive or graphene, wherein the metal is selected from gold, silver, copper, tantalum, stainless steel, tungsten alloy or platinum iridium alloy, and preferably stainless steel.
The electrode is many shapes such as strip, spheroid, like platykurtic or circular, when the electrode is rectangular, a plurality of electrodes are distributed along the circumference of pipe, and each electrode wears to locate among the annular component or between annular component and the pipe respectively, and electrode and the preferential all parallel of pipe 1, simple structure, easy to assemble makes things convenient for annular component 2 to set up behind pipe 1 on it turn through space 21 aim at corresponding electrode, convenient design and control turn through space 21. When the electrode is in a long strip shape, the electrode is a metal wire, a metal rod, a metal spring strip, a metal tube or a metal spring tube, and the electrode can be made of the same material or different materials. If the electrode is insulated wire, the sheath is removed to expose the internal core wire (copper wire), the internal core wire is exposed in the opening of the conducting space, and the electrode gauge is preferably AWG10-AWG46. The catheter 1 is made of polyurethane, preferably Pebax, and may be FEP, nylon, polyimide or PTFE.
The diameter of the electrode ranges from 0.05 mm to 1.0mm, the thickness of the annular member 2 is slightly larger than the diameter of the electrode, the overall diameter of the annular member 2, the electrode and the catheter 1 is within 1mm to 3mm, the overall outer diameter is not excessively increased, and the applicability of the electrode device at any lesion position is not affected.
The surface of the electrode is directly disposed outside the guide tube 1 without an insulating layer, and when the annular member 2 is disposed outside the guide tube 1, the exposed surface of the electrode is exposed at the opening of the conduction space 21.
Or the surface of the electrode is provided with an insulating layer, when the annular member 2 is arranged outside the catheter 1, the insulating layer of the electrode is provided with a hole (namely, a part of the insulating layer is removed) corresponding to the conducting space 21, so that the exposed surface of the electrode is exposed (namely, the exposed electrode part is free of the insulating layer). The insulating layer is an insulating coating or insulating pipes respectively sleeved outside the electrodes, namely, one insulating pipe can be sleeved on one electrode.
The working principle of the conducting space 21 for generating a shock wave is as follows: the electrodes are conductors, conductive solution is filled in the conductive space 21 during operation, the exposed surfaces of two adjacent electrodes can be immersed in a conductive fluid medium, positive and negative voltages are respectively applied to the two electrodes during operation, when the voltages reach a certain value, the conductive solution in the conductive space 21 is broken down to generate cavitation effect, current sequentially passes through one electrode and the other electrode to form a current path to generate vibration waves, and plaque breakage at a narrow position is realized to treat a calcified lesion position of a blood vessel.
The electrode unit includes a positive electrode 3 for connecting a positive electrode and a negative electrode 4 for connecting a negative electrode, the positive electrode 3 and the negative electrode 4 are adjacently disposed (not in contact) and are disposed to be insulated from each other, and a conducting space 21 is provided between the positive electrode 3 and the negative electrode 4, see fig. 1 and 2.
Or the electrode unit comprises a positive electrode 3 for connecting a positive electrode, a negative electrode 4 for connecting a negative electrode, and one or more intermediate electrodes 5. The positive electrode 3, the negative electrode 4 are disposed adjacent (not in contact) and insulated from each other, such as by being isolated from each other by the insulating structure 22 of the annular member 2. And conducting spaces are respectively arranged between the positive electrode and the middle electrode, and between the negative electrode and the middle electrode, and when a plurality of middle electrodes are arranged, conducting spaces are also formed between two adjacent middle electrodes, so that the middle electrode 5 does not need to be connected with an external energy generating unit.
In each electrode unit, the positive electrode 3 and the negative electrode 4 are respectively one, and the number of the intermediate electrodes 5 is 1,2, 3, 4, 5, 6 or more.
When only one positive electrode 3, one negative electrode 4 and one intermediate electrode 5 are arranged, a conducting space 21 is formed between the positive electrode 3 and the intermediate electrode 5, and a conducting space 21 is formed between the negative electrode 4 and the intermediate electrode 5.
When only one positive electrode 3 and only one negative electrode 4 are provided, a plurality of intermediate electrodes 5 are provided, and a conduction space 21 is also formed between two adjacent intermediate electrodes 5. In practical application, the total number of the positive electrode 3, the negative electrode 4 and the intermediate electrode 5 can be 3-10.
When the electrode unit comprises a positive electrode 3 for connecting a positive electrode, a negative electrode 4 for connecting a negative electrode, and one or more intermediate electrodes 5, the working principle of generating a shock wave in the conducting space 21 is as follows: when the electrode device works, conductive liquid is filled in the conducting space 21, the exposed surfaces of the two adjacent electrodes can be immersed in a conductive fluid medium, positive and negative voltages are respectively applied to the positive electrode 3 and the negative electrode 4, when the voltages reach a certain value, the conductive solution in the conducting space 21 is broken down to generate cavitation effect, current sequentially passes through the positive electrode 3, one or more middle electrodes 5 and the negative electrode 4 to form a current path, shock waves are formed in the conducting space and released outwards from the opening of the conducting space, and plaque breakage at a narrow position is realized so as to treat vascular calcification lesion positions.
The length of the intermediate electrode 5 is less than or equal to the axial length of the annular member 2, and the intermediate electrode 5 is placed in the corresponding perforation 23 without wiring. Or the positive electrode 3, the negative electrode 4 have a length smaller or larger than the axial length of the annular member 2. When connected, the positive electrode 3 and the negative electrode 4 can extend out of the annular member 2 to be connected with the positive electrode and the negative electrode of the energy generating unit 6 respectively, or the positive electrode 3 and the negative electrode 4 extend out of the annular member 2 to be connected with the positive electrode and the negative electrode of the energy generating unit 6 respectively in the annular member 2.
A plurality of electrode units are disposed along the axial direction of the annular member 2, and a large number of conduction spaces 21 are formed in the axial direction to act on a large-area vascular calcified lesion blood vessel, thereby breaking up calcified plaque and improving the therapeutic effect. In one electrode unit, a plurality of electrodes are preferably uniformly distributed around the catheter 1, so that the formed conduction space 21 is uniformly distributed around the catheter 1, and the generated shock waves can act on the calcified vascular lesion position more uniformly.
A plurality of annular members 2 are arranged along the axial direction of the catheter 1, a plurality of electrodes are arranged in each annular member 2 in a penetrating way or a plurality of electrodes are arranged between each annular member 2 and the catheter 1, gaps or contact can be kept between two adjacent annular members 2, a plurality of conducting spaces 21 can be formed on the plurality of annular members 2 in the axial direction of the catheter 1 so as to generate a large range of shock waves, in use, the vascular calcified lesion blood vessel with a large area can be treated once or a small number of times when the vascular calcified lesion blood vessel stretches into a lesion part, namely, the catheter 1 does not need to be sent to the lesion part inside a plurality of times, and the operation time can be greatly reduced.
A shock wave generating system, see fig. 13 and 14, comprises an electrode device, an energy generating unit 6 and a balloon 7, wherein the annular member 2 is positioned in the balloon 7, the balloon 7 can be filled with conductive fluid medium, and a conducting space 21 on the annular member 2 can be filled with the conductive fluid medium. The two electrodes are respectively connected with the positive electrode and the negative electrode of the energy generating unit, for example, the positive electrode 3 and the negative electrode 4 are respectively connected with the positive electrode and the negative electrode of the energy generating unit 6. The system further comprises a handle 8, the handle 8 is arranged on the catheter 1, the handle 8 is connected with the energy generating unit 6 for controlling the operation of the energy generating unit 6, and a plurality of marking rings 9 for indicating the length are sleeved outside the catheter 1 positioned in the balloon 7.
The following examples one to four specifically show the case where 0 to 4 intermediate electrodes are provided.
Example 1
In the present embodiment, referring to fig. 1 and 2, the electrode unit includes a positive electrode 3 for connecting the positive electrode and a negative electrode 4 for connecting the negative electrode, the positive electrode 3, the negative electrode 4 being disposed adjacently (without contact) and being disposed insulated from each other, a conduction space 21 being provided between the positive electrode 3 and the negative electrode 4, in fig. 1, the positive electrode 3, the negative electrode 4, the intermediate electrode 5 being spaced apart by 90 degrees in the circumferential direction; in fig. 2, the positive electrode 3, the negative electrode 4, and the intermediate electrode 5 are 180 degrees apart in the circumferential direction.
Example two
In the present embodiment, referring to fig. 3, the annular member 2 is an insulating sleeve, and only one of the positive electrode 3, the negative electrode 4, and the intermediate electrode 5 is provided, and the positive electrode 3, the negative electrode 4 are provided adjacent to each other and insulated from each other, and the positive electrode 3, the negative electrode 4, and the intermediate electrode 5 are spaced apart from each other by 120 degrees in the circumferential direction.
Conduction spaces 21 are formed between the positive electrode 3 and the adjacent intermediate electrode 5, and between the negative electrode 4 and the adjacent intermediate electrode 5, that is, two conduction spaces 21 are formed on the annular member 2, so that shock waves (energy release) can be generated in the two conduction spaces 21.
When the annular member 2 is provided with only one conducting space 21, if only one conducting space 21 is formed between the negative electrode 4 and the middle electrode 5 and no conducting space 21 is formed between the positive electrode 3 and the middle electrode 5, the positive electrode 3 and the middle electrode 5 are connected through a wire, and when the electrode device works, the negative electrode 4 is connected with the negative electrode, and the positive electrode 3 or the middle electrode 5 or the positive electrode 3 and the middle electrode 5 are connected with the positive electrode.
When the annular member 2 is provided with only one conducting space 21, if only one conducting space 21 is formed between the positive electrode 3 and the middle electrode 5 and no conducting space 21 is formed between the negative electrode 4 and the middle electrode 5, the negative electrode 4 and the middle electrode 5 are connected through a wire, and the electrode device works, the negative electrode 4 is connected with the negative electrode, the positive electrode 3 is connected with the positive electrode, or the middle electrode 5 is connected with the positive electrode, or a wiring between the positive electrode 3 and the middle electrode 5 is connected with the positive electrode.
Example III
The present embodiment is basically the same as the second embodiment, except that:
In the present embodiment, referring to fig. 4 to 8, only one positive electrode 3, only one negative electrode 4 are provided, two intermediate electrodes are provided, the positive electrode 3, the negative electrode 4 are provided adjacently and are provided insulated from each other, and the positive electrode 3, the negative electrode 4, and the two intermediate electrodes (51, 52) are separated by 90 degrees in the circumferential direction.
In fig. 4 and 6, the guide pipe 1 is a circular pipe, and the annular member 2 is an insulating sleeve; in fig. 5, four grooves 11 are formed in the guide pipe 1, and the annular member 2 is an insulating sleeve; in fig. 4, the catheter 1 is a circular tube, and the annular member 2 comprises a sleeve main body 25 and a filling body 26; in fig. 8, two independent conduction spaces 21 are formed between the positive electrode 3 and the intermediate electrode 51, two independent conduction spaces 21 are formed between the negative electrode 4 and the intermediate electrode 52, and two independent conduction spaces 21 are formed between the intermediate electrode 51 and the intermediate electrode 52.
When the annular member 2 is provided with three conducting spaces 21, conducting spaces 21 are formed between the positive electrode 3 and the adjacent intermediate electrode 51, between the negative electrode 4 and the adjacent intermediate electrode 52, and between the adjacent two intermediate electrodes (51, 52), and the total of three conducting spaces 21 are used for generating shock waves, and the three conducting spaces 21 are used for generating shock waves.
When the annular member 2 is provided with only two conducting spaces 21, if the conducting spaces 21 are formed between the negative electrode 4 and the adjacent intermediate electrode 52 and between the adjacent two intermediate electrodes (51, 52), and the positive electrode 3 and the adjacent intermediate electrode 51 are connected by a wire (when the electrode device works, the negative electrode 4 is connected with the negative electrode, the positive electrode 3 is connected with the positive electrode, or the intermediate electrode 51 is connected with the positive electrode, or the wiring between the positive electrode 3 and the intermediate electrode 51 is connected with the positive electrode); or if the conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51 and between the adjacent two intermediate electrodes (51, 52), the negative electrode 4 and the adjacent intermediate electrode 52 are connected by a lead; or if the conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51 and between the negative electrode 4 and the adjacent intermediate electrode 52, the adjacent two intermediate electrodes (51, 52) are connected by a wire.
When only one conducting space 21 is formed on the annular member 2, if one conducting space 21 is formed between two adjacent intermediate electrodes (51, 52), the positive electrode 3 and the adjacent intermediate electrode 51, and the negative electrode 4 and the adjacent intermediate electrode 52 are respectively connected through leads; or if a conducting space 21 is formed between the negative electrode 4 and the adjacent intermediate electrode 52, the positive electrode 3 and the adjacent intermediate electrode 51 and the adjacent two intermediate electrodes (51, 52) are respectively connected by leads; or if a conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51, the negative electrode 4 and the adjacent intermediate electrode 52 and the adjacent two intermediate electrodes (51, 52) are connected by leads respectively.
Example IV
The present embodiment is basically the same as the second embodiment, except that:
in this embodiment, referring to fig. 9, the annular member 2 is an insulating sleeve, only one positive electrode 3 and only one negative electrode 4 are provided, three intermediate electrodes are provided, the positive electrode 3, the negative electrode 4 and the three intermediate electrodes (51, 52 and 53) are circumferentially separated by 72 degrees, and the catheter 1 is a circular tube.
When the annular member 2 is provided with four conducting spaces 21, conducting spaces 21 are formed between the positive electrode 3 and the adjacent intermediate electrode 51, between the negative electrode 4 and the adjacent intermediate electrode 53, and between the adjacent two intermediate electrodes (i.e., the intermediate electrode 51 and the intermediate electrode 52, and the intermediate electrode 52 and the intermediate electrode 53), and the four conducting spaces 21 are used for generating shock waves.
When only three conducting spaces 21 are formed on the annular member 2, if conducting spaces 21 are formed between the negative electrode 4 and the adjacent intermediate electrode 53 and between the adjacent two intermediate electrodes (intermediate electrode 51 and intermediate electrode 52, intermediate electrode 52 and intermediate electrode 53), the positive electrode 3 is connected with the adjacent intermediate electrode 51 through a wire; or if the conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51 and between the adjacent two intermediate electrodes, and three conducting spaces 21 are formed, the negative electrode 4 and the adjacent intermediate electrode 53 are connected through a wire; or if the conduction space 21 is formed between the positive electrode 3 and the intermediate electrode 51 adjacent thereto, between the negative electrode 4 and the intermediate electrode 53 adjacent thereto, and between the other two adjacent intermediate electrodes (intermediate electrode 52 and intermediate electrode 53), one adjacent two intermediate electrodes (intermediate electrode 51 and intermediate electrode 52) are connected by a wire.
When only two conducting spaces 21 are formed on the annular member 2, if two conducting spaces 21 are formed between two adjacent intermediate electrodes respectively, the positive electrode 3 and the adjacent intermediate electrode 51, and the negative electrode 4 and the adjacent intermediate electrode 53 are connected by leads; or if the conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode, and between the other adjacent two intermediate electrodes (intermediate electrode 52 and intermediate electrode 53), the negative electrode 4 and the adjacent intermediate electrode 53, and between the one adjacent two intermediate electrodes (intermediate electrode 51 and intermediate electrode 52) are connected by a wire; or if the conduction space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51, and between the negative electrode 4 and the adjacent intermediate electrode 53, then the two adjacent intermediate electrodes are connected by a wire.
When only one conducting space 21 is formed on the annular member 2, if one conducting space 21 is formed between two adjacent intermediate electrodes (intermediate electrodes 52 and 53), the positive electrode 3 and the adjacent intermediate electrode 51, the negative electrode 4 and the adjacent intermediate electrode 53, and the other two adjacent intermediate electrodes (intermediate electrodes 51 and 52) are respectively connected through wires; or if a conducting space 21 is formed between the negative electrode 4 and the adjacent intermediate electrode 53, the positive electrode 3 and the adjacent intermediate electrode 51 and the two adjacent two intermediate electrodes are respectively connected by leads; or a conducting space 21 is formed between the positive electrode 3 and the adjacent intermediate electrode 51, and the negative electrode 4 and the adjacent intermediate electrode 53 and the two adjacent intermediate electrodes are respectively connected by leads.
Example five
The present embodiment is basically the same as the second embodiment, except that:
In this embodiment, referring to fig. 10, the annular member 2 is an insulating sleeve, only one positive electrode 3 and only one negative electrode 4 are provided, four intermediate electrodes are provided, the positive electrode 3, the negative electrode 4 and the four intermediate electrodes (51, 52, 53, 54) are circumferentially spaced 60 degrees apart, and the catheter 1 is a circular tube.
When five conducting spaces 21 are formed in the annular member 2, the conducting spaces 21 are formed between the positive electrode 3 and the adjacent intermediate electrode 51, between the negative electrode 4 and the adjacent intermediate electrode 54, and between three adjacent two intermediate electrodes (intermediate electrode 51 and intermediate electrode 52, intermediate electrode 52 and intermediate electrode 53, and intermediate electrode 53 and intermediate electrode 54), and the five conducting spaces 21 are used for generating shock waves.
When four, three, two or one conducting space 21 is formed on the annular member 2, referring to the third embodiment, correspondingly, the positive electrode 3 and the adjacent intermediate electrode 51, and/or the negative electrode 4 and the adjacent intermediate electrode 54, and/or the two adjacent intermediate electrodes (between the intermediate electrode 51 and the intermediate electrode 52, between the intermediate electrode 52 and the intermediate electrode 53, and between the intermediate electrode 53 and the intermediate electrode 54) are connected by wires, a corresponding number of conducting spaces 21 can be formed, thereby realizing the position and number control of the conducting spaces 21.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (13)
1. An electrode device comprising a catheter, an electrode unit comprising a plurality of electrodes, characterized in that: the electrode device further comprises an annular member which surrounds the circumference of the catheter and is arranged outside the catheter, the plurality of electrodes are distributed along the circumference of the catheter, each electrode is respectively penetrated in the annular member or between the annular member and the catheter, and part of the circumferential surface is exposed, one or more conducting spaces are formed on the annular member and are used for communicating the exposed surfaces of two adjacent electrodes with the space outside the electrode device, so that when the conducting spaces are filled with conductive liquid and the electrode device is electrically connected, shock waves are formed in the conducting spaces and released outwards from the openings of the conducting spaces, and the annular member is an insulator;
The electrode unit comprises a positive electrode for connecting a positive electrode, a negative electrode for connecting a negative electrode and one or more middle electrodes, wherein the positive electrode and the negative electrode are adjacent and are arranged in an insulating way, the conducting space is respectively arranged between the positive electrode and the middle electrode, and the conducting space is also formed between two adjacent middle electrodes when a plurality of middle electrodes are arranged;
When the electrode device works, current sequentially passes through the positive electrode, one or more middle electrodes and the negative electrode to form a current path;
The annular member is provided in plurality, and when the annular member is provided in plurality, the plurality of annular members are distributed along the axial direction of the catheter.
2. The electrode device of claim 1, wherein: in each of the electrode units, the positive electrode and the negative electrode are respectively one, and the number of the intermediate electrodes is 1,2,3, 4, 5, 6 or more.
3. The electrode device of claim 1, wherein: one or more conducting spaces are arranged between two adjacent electrodes, and when a plurality of conducting spaces are arranged, a plurality of conducting spaces are arranged along the length direction of the annular component and are mutually independent.
4. The electrode device of claim 1, wherein: viewed in cross section of the electrode device, a plurality of the conduction spaces are distributed along the circumferential direction of the catheter; and the plurality of conducting spaces are positioned at the same position or at different length positions in the length direction of the electrode device or are positioned at the same position in the length direction of the electrode device and at different length positions in the longitudinal section of the electrode device.
5. The electrode device of claim 1, wherein: the proportion of the exposed surface of each electrode is more than 0 and less than 100 percent of the surface area of the electrode.
6. The electrode device of claim 1, wherein: the annular member comprises an insulating sleeve, the insulating sleeve is provided with a connecting hole which is positioned in the middle and is used for sleeving the catheter, a plurality of perforations which extend along the length direction of the connecting hole are further arranged on the insulating sleeve, the plurality of perforations are distributed around the connecting hole, a plurality of electrodes respectively and correspondingly penetrate through the plurality of perforations, an outward opening groove is formed on at least one side of the perforation, the groove is communicated with the perforation, so that at least part of the surface of the electrode positioned in the perforation is exposed, and the inner space of the groove forms the conducting space.
7. The electrode assembly of claim 6 wherein: the aperture of the perforation is smaller than the wall thickness of the insulating sleeve, and the depth of the groove is smaller than or equal to the wall thickness of the insulating sleeve.
8. The electrode assembly of claim 6 wherein: the insulating sleeve comprises a sleeve body made of a non-conductive material; or the insulating sleeve comprises a sleeve body made of conductive materials or non-conductive materials and an insulating coating arranged on the surface of the sleeve body.
9. The electrode device of claim 1, wherein: the annular member comprises an annular sleeve body and a filling body, the sleeve body is sleeved outside the catheter, the filling body is filled between the sleeve body and the catheter, an outward opening groove is formed in the same part of the sleeve body and the filling body, at least part of the surface of the electrode is exposed at the opening, and the inner space of the groove forms the conducting space.
10. The electrode device of claim 1, wherein: the conduit has two relatively distant ends, and the annular member is disposed proximate one of the two ends.
11. The electrode device of claim 1, wherein: the electrodes are in a strip shape, and each electrode is respectively penetrated into the annular member or between the annular member and the catheter along the length direction of the electrode.
12. The electrode device of claim 1, wherein: the section of the catheter is circular or polygonal, or a groove for placing the electrode is arranged outside the catheter along the axial direction of the catheter.
13. A shock wave generating system, comprising an electrode device and a balloon, characterized in that: the electrode device is as claimed in any one of claims 1 to 12, the annular member being located within the balloon.
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| CN202111014462.5A CN113633346B (en) | 2021-08-31 | 2021-08-31 | Electrode device and shock wave generation system |
| PCT/CN2021/127395 WO2023029191A1 (en) | 2021-08-31 | 2021-10-29 | Electrode device and shock wave generation system |
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| CN202111014462.5A CN113633346B (en) | 2021-08-31 | 2021-08-31 | Electrode device and shock wave generation system |
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| CN114504361B (en) * | 2021-12-31 | 2023-09-15 | 深圳市赛禾医疗技术有限公司 | Shock wave device and balloon catheter |
| CN114569194A (en) * | 2022-03-09 | 2022-06-03 | 江苏朴芃医疗科技有限公司 | Shock wave electrode device and shock wave waveguide system |
| CN116999118A (en) * | 2022-09-20 | 2023-11-07 | 苏州润迈德智能科技发展有限公司 | Shock wave sacculus catheter device |
| WO2024091181A1 (en) * | 2022-10-25 | 2024-05-02 | Spectrumedics Medical Technology (Shanghai) Co., Ltd. | Electrode assemblies for shockwave generating catheters |
| CN116328190B (en) * | 2023-03-16 | 2024-02-06 | 河南翔宇医疗设备股份有限公司 | Short wave treatment head device |
| CN117281580B (en) * | 2023-11-27 | 2024-03-15 | 沛嘉医疗科技(苏州)有限公司 | Electrode device for treating tissue calcification and shock wave device |
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| CN113633346A (en) | 2021-11-12 |
| WO2023029191A1 (en) | 2023-03-09 |
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