CN113633347B - Targeted shock wave treatment catheter and treatment system - Google Patents
Targeted shock wave treatment catheter and treatment system Download PDFInfo
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- CN113633347B CN113633347B CN202111110077.0A CN202111110077A CN113633347B CN 113633347 B CN113633347 B CN 113633347B CN 202111110077 A CN202111110077 A CN 202111110077A CN 113633347 B CN113633347 B CN 113633347B
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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
-
- 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
-
- 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
Abstract
The invention belongs to the technical field of medical instruments, particularly relates to the field of A61B17/22, and particularly relates to a targeted shock wave treatment catheter and a treatment system. Comprises an inner tube, the distal part of the inner tube is provided with a radiographic detectable developing ring; an outer tube, a distal portion of which is provided with a balloon; the inner tube and the outer tube are coaxially sleeved, the inner tube is arranged in the cavity of the outer tube, and the developing ring is arranged in the range covered by the balloon; the device also comprises a sleeve; the sleeve is sleeved between the inner pipe and the outer pipe, and has a sliding freedom degree in the axial direction and a rotating freedom degree in the axial direction relative to the inner pipe and the outer pipe. Through the axial movement or the rotation of sleeve pipe, the release position and the direction of accurate regulation shock wave carry out accurate processing to the pathological change position in the blood vessel, avoid causing the influence to normal position.
Description
Technical Field
The invention belongs to the technical field of medical instruments, particularly relates to the field of A61B17/22, and particularly relates to a targeted shock wave treatment catheter and a treatment system.
Background
Vascular calcification is primarily a stenosis and sclerosis of the vessel caused by plaque accumulation. The so-called plaque consists of fibrous tissue, fat and calcium. The accumulated calcified plaque impedes the normal flow of blood, resulting in an inadequate supply of oxygen and nutrients to the body. Seriously affecting the physical health of the patient. In recent years, minimally invasive treatment methods are generally adopted for treating calcified lesions in blood vessels, and the main methods include high-pressure balloons, cutting balloons, spinous process balloons and atherectomy/rotational atherectomy, but these devices can only treat superficial calcification of the intima of blood vessels, and are "untenable" for medial calcification, calcified nodules or severe calcification. Moreover, the clinical prognosis of calcified lesions of the cardiovascular system is poor, because calcified plaques are usually difficult to dilate by a common balloon, and various complications are easy to appear even after dilation, often resulting in an increase in mortality.
Based on this, a new technique has recently emerged, which applies a shock wave lithotripsy to a blood vessel by inserting a catheter having a balloon at a distal end thereof into the blood vessel, the balloon is inflated and expanded at a lesion, and electrodes installed in the balloon are operated to perform arc discharge, releasing a high voltage pulse, causing rapid inflation and rupture of bubbles, thereby generating a shock wave. The shock wave is transmitted through the liquid medium and impacts the calcified area inside the blood vessel through the saccule wall to crush the calcified matter, restore the elasticity and blood vessel of the blood vessel and remold the diseased blood vessel, and avoid the damage to the inner wall and inner membrane of the blood vessel.
The american SHOCKWAVE MEDICAL company (SHOCKWAVE MEDICAL) provides various implementations of the principle of removing calcified substances by using SHOCKWAVEs, such as US publications US8728091B2, US 8888788B 2, US8956371B2, US8956374B2, etc., and domestic companies apply for related patents. However, in the prior art, the method of generating shock waves in the human body is adopted to treat the calcified plaque in the blood vessel, which needs to generate higher high-voltage pulses in the human body, and the generated high-voltage pulses enable the liquid in the balloon to generate bubbles, and the energy generated when the bubbles are broken acts on the balloon wall and further acts on the calcified lesion. Then, on the circumference of the same blood vessel, the blood vessel is intact within a certain angle, the blood vessel within the certain angle is calcified lesion, the thickness of the calcified lesion is different, and if the size of the shock wave generated by the high-voltage pulse is not properly controlled, the blood vessel is damaged to a certain extent. In order to solve the above problems, it is necessary to develop a shock wave targeted therapy apparatus and a catheter.
Disclosure of Invention
In view of the above problems, the present invention provides a targeted shockwave therapy catheter comprising
An inner tube having a distal portion provided with a radiolucent visualization ring;
an outer tube, a distal portion of which is provided with a balloon;
the inner tube and the outer tube are coaxially sleeved, the inner tube is arranged in the cavity of the outer tube, and the developing ring is arranged in the range covered by the balloon;
the device also comprises a sleeve; the sleeve is sleeved between the inner pipe and the outer pipe, and has a sliding freedom degree in the axial direction and a rotating freedom degree in the axial direction relative to the inner pipe and the outer pipe.
As a preferred technical solution, the joint further comprises a first connecting seat, the first connecting seat is arranged at the proximal end of the outer tube, and the first connecting seat is connected with the proximal end of the outer tube through a section of outer corrugated tube; the inner pipe is arranged at the near end of the inner pipe, and the second connecting seat is connected with the near end of the inner pipe through a section of inner corrugated pipe.
As a preferred technical scheme, the medical device further comprises a third connecting seat, wherein the third connecting seat is arranged at the proximal end of the sleeve and is fixedly connected with the proximal end of the sleeve; the third connecting seat is arranged between the first connecting seat and the second connecting seat.
As a preferred technical scheme, the connector further comprises a first adjusting nut, wherein the first adjusting nut is arranged on the third connecting seat and is rotatably and fixedly connected with the third connecting seat; the second adjusting nut is arranged on the second connecting seat and is rotatably and fixedly connected with the second connecting seat; the far end of the first adjusting nut is provided with internal threads, and the near end of the first connecting seat is provided with external threads matched with the first connecting seat; the distal end of the second adjusting nut is provided with internal threads, and the proximal end of the third connecting seat is provided with external threads matched with the third connecting seat.
As a preferred technical scheme, an inner and outer conical head matching structure is arranged at the joint of the third connecting seat and the second connecting seat; and the first connecting seat, the third connecting seat and the connecting part are provided with an inner cone and outer cone matching structure.
The invention also provides a treatment system based on any one of the above, further comprising a plurality of groups of shock wave generating elements, wherein the shock wave generating elements are arranged in the coverage range of the balloon;
as a preferable technical solution, the shock wave generating elements are arranged at the distal end of the inner tube, the sleeve is provided with shock wave releasing ports at the distal end, the number of the shock wave releasing ports is the same as that of the shock wave generating elements, and the shock wave releasing ports are staggered at the distal end of the sleeve.
As a preferable technical solution, the shock wave generating element includes a first electrode and a second electrode coaxially arranged, and a non-conductive gap; the first electrode and the second electrode are coaxially arranged, and a non-conductive gap is arranged in a gap between the first electrode and the second electrode.
As a preferable technical scheme, the number of the shock wave generating element groups is more than or equal to 1, and the number of the shock wave releasing openings on the sleeve is the same as that of the shock wave generating element groups on the inner pipe and is arranged in a staggered mode.
Preferably, the shock wave generating element is disposed at the distal end of the cannula.
As a preferable technical solution, the shock wave generating element includes a first electrode and a second electrode coaxially arranged, and a non-conductive gap; the first electrode and the second electrode are coaxially arranged, and a non-conductive gap is arranged in a gap between the first electrode and the second electrode.
As a preferable technical scheme, the balloon is a drug balloon, the drug coating on the surface of the drug balloon can be composed of active drugs and strong excipients, the active drugs are one or more of rapamycin, paclitaxel, sirolimus, everolimus, tacrolimus and the like, and the strong excipients are used for fixing the drugs on the surface of the balloon and preventing the drugs from being lost due to blood washing in the delivery process. When the targeted therapy is carried out, the targeted position drug coating falls off under the action of the shock wave and is absorbed, so that the drug is utilized to the maximum extent, and the damage to non-pathological blood vessels is reduced.
Has the advantages that: the invention provides a shock wave targeted therapy catheter for vascular calcification, which is used for treating calcified blood vessels in a mode of releasing shock waves and crushing calcified parts in the blood vessels, so that the injury of a minimally invasive surgery on the inner wall or intima of the blood vessels is avoided, meanwhile, a sleeve is arranged between an inner tube and an outer tube of the catheter, the release position and direction of the shock waves are accurately adjusted through the axial movement or rotation of the sleeve, the diseased parts in the blood vessels are accurately treated, and the influence on normal parts is avoided.
According to the invention, the sleeve is used for adjusting the position and the angle of the shock wave release to ensure the accuracy of the shock wave release, the action of the sleeve is adjusted by using the three connecting seats, the sleeve is controlled to rotate through the third connecting seat to enable the shock wave release port to be in the most appropriate position, and the axial position of the sleeve is adjusted in the elastic adjustment space of the two corrugated pipes by moving the first connecting seat and the second connecting seat to ensure the accurate release of the shock wave.
Drawings
FIG. 1 is a schematic structural diagram of a shock wave targeted therapy catheter for vascular calcification according to the present invention;
FIG. 2 is a schematic view of a balloon construction;
fig. 3 is a schematic structural diagram of the first connecting seat, the second connecting seat and the third connecting seat;
FIG. 4 is a schematic view of the shock wave generating element in position in the casing;
FIG. 5 is a schematic view of the shock wave generating element in a position within the inner tube;
FIG. 6 is a schematic view of the shock wave generating element in a position within the inner tube;
FIG. 7 is a schematic structural view of a shock wave generating element;
FIG. 8 is a schematic structural view of a shock wave generating element;
the device comprises an inner tube 1, a developing ring 2, a balloon 3, a shock wave generating element 4, a first electrode 41, a second electrode 42, a non-conductive gap 43, a sleeve 5, an outer tube 6, an outer corrugated tube 7, an inner corrugated tube 8, a first connecting seat 9, a first adjusting nut 10, a third connecting seat 11, a second adjusting nut 12 and a second connecting seat 13.
Detailed Description
A targeted shockwave therapy catheter comprises
An inner tube 1, a distal portion of said inner tube 1 being provided with a radiolucent imaging ring 2;
an outer tube 6, a distal end portion of the outer tube 6 being provided with a balloon 3;
the inner tube 1 and the outer tube 6 are coaxially sleeved, the inner tube 1 is arranged in the cavity of the outer tube 6, and the developing ring 2 is arranged in the range covered by the balloon 3;
also comprises a sleeve 5; the sleeve 5 is inserted between the inner tube 1 and the outer tube 6, and the sleeve 5 has a degree of freedom of sliding in the axial direction and a degree of freedom of rotation in the axial direction with respect to the inner tube 1 and the outer tube 6.
In some preferred embodiments, the device further comprises a first connection seat 9, wherein the first connection seat 9 is arranged at the proximal end of the outer tube 6, and the first connection seat 9 is connected with the proximal end of the outer tube 6 through a section of outer corrugated tube 7; the inner pipe connecting structure further comprises a second connecting seat 13, the second connecting seat 13 is arranged at the near end of the inner pipe 1, and the second connecting seat 13 is connected with the near end of the inner pipe 1 through a section of inner corrugated pipe 8.
In some preferred embodiments, the device further comprises a third connecting seat 11, wherein the third connecting seat 11 is arranged at the proximal end of the sleeve 5 and is fixedly connected with the proximal end of the sleeve 5; the third connecting seat 11 is disposed between the first connecting seat 9 and the second connecting seat 13.
In some preferred embodiments, the device further comprises a first adjusting nut 10, wherein the first adjusting nut 10 is arranged on the third connecting seat 11 and is in rotatable fixed connection with the third connecting seat 11; the device further comprises a second adjusting nut 12, wherein the second adjusting nut 12 is arranged on the second connecting seat 13 and is rotatably and fixedly connected with the second connecting seat 13; the far end of the first adjusting nut 10 is provided with internal threads, and the near end of the first connecting seat 9 is provided with external threads matched with the first connecting seat; the far end of the second adjusting nut 12 is provided with an internal thread, and the near end of the third connecting seat 11 is provided with an external thread matched with the internal thread.
In some preferred embodiments, the joint of the third connecting seat 11 and the second connecting seat 13 is provided with an inner and outer conical head matching structure; and the first connecting seat 9, the third connecting seat 11 and the connecting part are provided with an inner cone and an outer cone matching structure.
A treatment system according to any one of the preceding claims, further comprising several groups of shock wave generating elements 4, said shock wave generating elements 4 being arranged within the coverage of said balloon 3;
in some preferred embodiments, the shockwave generating elements 4 are arranged at the distal end of the inner tube 1, and the sleeve 5 is provided with shockwave releasing openings at the distal end, the number of shockwave releasing openings being the same as the number of shockwave generating elements 4, and the shockwave releasing openings being staggered at the distal end of the sleeve 5.
In some preferred embodiments, the shockwave generating element 4 is disposed at the distal end of the cannula 5.
In some preferred embodiments, the shockwave generating element 4 comprises a first electrode 41 and a second electrode 42, which are coaxially arranged, and a non-conductive gap 43; the first electrode 41 and the second electrode 42 are coaxially arranged, and a non-conductive gap 43 is arranged in the axial gap between the first electrode 41 and the second electrode 42.
In some preferred embodiments, the shockwave generating element 4 comprises a first electrode 41 and a second electrode 42, which are coaxially arranged, and a non-conductive gap 43; the first electrode 41 and the second electrode 42 are arranged coaxially in the radial direction, a substrate is clamped between the first electrode 41 and the second electrode 42, and a non-conductive gap 43 is filled in the middle of the first electrode 41.
In some preferred embodiments, the balloon is a drug balloon, and the drug coating on the surface of the drug balloon may be composed of one or more of rapamycin, paclitaxel, sirolimus, everolimus, tacrolimus, etc., and a strong excipient for fixing the drug on the surface of the balloon and preventing the drug from being lost due to blood washing during the delivery process. When the targeted therapy is carried out, under the action of shock waves, the drug coating at the targeted position falls off and is absorbed, so that the drug is utilized to the maximum, and the damage to non-pathological blood vessels is reduced.
The working principle is as follows: the invention provides a shock wave targeted therapy catheter aiming at vascular calcification; the implementation of angioplasty is mainly to infuse liquid (physiological saline or contrast agent) through the channel between the inner tube 01 and the outer tube 05, pressurize to inflate the balloon 03, and reach a certain pressure, the balloon is attached to the calcified substance, the high voltage generator 17 is connected, under the control of the circuit board 15, the electrode in the balloon 03 will generate shock wave, the liquid in the balloon is transmitted to the surface of the balloon, the energy is transmitted to the calcified substance, and the calcified substance is crushed. The targeted treatment location can be adjusted by moving the 04 cannula axially or rotating it radially. The high voltage generator is a voltage input terminal and is transmitted to the circuit board 15 through a lead 16, and the circuit board 15 outputs voltage to the shock wave generating element through a lead 14.
The targeted therapy has two schemes, one is that the shock wave generating device is positioned on the cannula body, and the cannula can be moved or rotated to perform targeted therapy; the second scheme is that the shock wave generator is located on the inner tube body, and when the targeted therapy is performed, the targeted therapy is performed by moving or rotating the sleeve, and round hole holes or long slits are distributed on the sleeve in a staggered mode and used as a shock wave discharge channel.
As shown in fig. 5 and 6, the shock wave generating element is mounted on the inner tube, the shock wave generating element is disposed in the balloon, the inner tube is formed with two electrodes and a nonconductive gap, and the inner tube may include one or more sets of shock wave generating elements. The inner pipe is provided with a sleeve, round holes and/or slits (a plurality of round holes can be arranged according to the number of the shock wave generating elements) are distributed on the sleeve in a staggered manner, the total number of the round holes and/or slits is the same as the number of the shock wave generating elements, and the round holes and/or slits are distributed in a staggered manner with the non-conductive gaps (namely, when the sleeve is rotated along the circumferential direction, only one round hole or slit can be connected with the non-conductive gap on the shock wave generating element at the same time), and the structure can be realized by rotating the sleeve, so that the local concentrated arc discharge can be selectively realized.
In order to generate a shock wave that can crush calcified materials, an arc discharge of cavitation bubbles must be generated. The voltage required to generate the arc depends on the gap between the electrodes. The duration will also depend on the surface area of the electrode and needs to be sufficient to generate a bubble at the surface of the electrode such that the plasma arc of current skips each bubble and forms a rapidly expanding and collapsing bubble each time it occurs, which forms a shock wave. The shock wave intensity can be realized by controlling the output voltage by the circuit board.
One of the most outstanding and practical characteristics of the invention is that the targeted therapy can be carried out, the shock wave therapy device can be used for purposefully and flexibly treating targeted pathological changes without damaging non-pathological blood vessels, the complications are reduced, and the success rate of the operation is improved.
Claims (7)
1. A targeted shock wave therapy catheter is characterized by comprising
An inner tube (1), a distal portion of said inner tube (1) being provided with a radiographically detectable ring (2);
an outer tube (6), a distal end portion of the outer tube (6) being provided with a balloon (3);
the inner tube (1) and the outer tube (6) are coaxially sleeved, the inner tube (1) is arranged in a cavity of the outer tube (6), and the developing ring (2) is arranged in a range covered by the balloon (3);
also comprises a sleeve (5); the sleeve (5) is sleeved between the inner pipe (1) and the outer pipe (6), and the sleeve (5) has a sliding freedom degree in the axial direction and a rotating freedom degree in the axial direction relative to the inner pipe (1) and the outer pipe (6);
the targeted shock wave treatment catheter further comprises a first connecting seat (9), the first connecting seat (9) is arranged at the near end of the outer tube (6), and the first connecting seat (9) is connected with the near end of the outer tube (6) through a section of outer corrugated tube (7); the connecting device further comprises a second connecting seat (13), the second connecting seat (13) is arranged at the near end of the inner pipe (1), the second connecting seat (13) is connected with the near end of the inner pipe (1) through a section of inner corrugated pipe (8), and the connecting device further comprises a third connecting seat (11), the third connecting seat (11) is arranged at the near end of the sleeve (5) and fixedly connected with the near end of the sleeve (5); the third connecting seat (11) is arranged between the first connecting seat (9) and the second connecting seat (13);
the targeted shock wave treatment catheter further comprises a first adjusting nut (10), and the first adjusting nut (10) is arranged on the third connecting seat (11) and is rotatably and fixedly connected with the third connecting seat (11); the device is characterized by further comprising a second adjusting nut (12), wherein the second adjusting nut (12) is arranged on the second connecting seat (13) and is rotatably and fixedly connected with the second connecting seat (13); the far end of the first adjusting nut (10) is provided with internal threads, and the near end of the first connecting seat (9) is provided with external threads matched with the first connecting seat; the far end of the second adjusting nut (12) is provided with internal threads, and the near end of the third connecting seat (11) is provided with external threads matched with the third connecting seat;
an inner conical head and outer conical head matching structure is arranged at the joint of the third connecting seat (11) and the second connecting seat (13); and the first connecting seat (9), the third connecting seat (11) and the connecting part are provided with an inner cone and an outer cone matching structure.
2. The targeted shockwave therapy catheter according to claim 1, wherein said balloon (3) is a drug balloon, and the drug coating on the surface of said balloon (3) is composed of active drug and strong excipient, said active drug is one or more of rapamycin, paclitaxel, sirolimus, everolimus, tacrolimus, etc.
3. A targeted shockwave therapy system, characterized in that it comprises a targeted shockwave therapy catheter according to claim 1 or 2, and further comprises several sets of shockwave generating elements (4), said shockwave generating elements (4) being arranged within the coverage of said balloon (3).
4. The targeted shockwave therapy system of claim 3, wherein said shockwave generating elements (4) are arranged at the distal end of said inner tube (1), said sleeve (5) being provided with shockwave releasing openings at the distal end, said number of shockwave releasing openings being the same as the number of shockwave generating elements (4), said shockwave releasing openings being staggered at the distal end of said sleeve (5).
5. The targeted shockwave therapy system of claim 3, wherein said shockwave generating element (4) is disposed at the distal end of said cannula (5).
6. The targeted shockwave therapy system of claim 5, wherein said shockwave generating element (4) comprises a first electrode (41) and a second electrode (42) coaxially arranged, and a non-conductive gap (43); the first electrode (41) and the second electrode (42) are coaxially arranged, and a non-conductive gap (43) is arranged in an axial gap between the first electrode (41) and the second electrode (42).
7. The targeted shockwave therapy system of claim 5, wherein said shockwave generating element (4) comprises a first electrode (41) and a second electrode (42) coaxially arranged, and a non-conductive gap (43); the first electrode (41) and the second electrode (42) are arranged coaxially in the radial direction, a substrate is clamped between the first electrode (41) and the second electrode (42), and a non-conductive gap (43) is filled in the middle of the first electrode (41).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111110077.0A CN113633347B (en) | 2021-09-23 | 2021-09-23 | Targeted shock wave treatment catheter and treatment system |
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| CN202111110077.0A CN113633347B (en) | 2021-09-23 | 2021-09-23 | Targeted shock wave treatment catheter and treatment system |
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| CN113633347A CN113633347A (en) | 2021-11-12 |
| CN113633347B true CN113633347B (en) | 2022-08-30 |
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| CN115192872B (en) * | 2022-07-18 | 2023-09-26 | 深圳市赛禾医疗技术有限公司 | Balloon catheter and shock wave device |
| CN117503265A (en) * | 2022-07-26 | 2024-02-06 | 苏州生科智能科技有限公司 | Shock wave sacculus catheter device |
| CN115245373B (en) * | 2022-09-26 | 2023-06-23 | 上海百心安生物技术股份有限公司 | Pulse saccule dilating catheter capable of being crushed uniformly |
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| CN111184553A (en) * | 2019-04-29 | 2020-05-22 | 谱创医疗科技(上海)有限公司 | High coverage low profile electrode assembly for angioplasty shock waveguides |
| CN110811761A (en) * | 2019-05-17 | 2020-02-21 | 谱创医疗科技(上海)有限公司 | Shock wave generation system applied to angioplasty |
| CN211584835U (en) * | 2019-10-11 | 2020-09-29 | 科塞尔医疗科技（苏州）有限公司 | Medicine balloon catheter |
| CN113117220A (en) * | 2021-04-14 | 2021-07-16 | 深圳市赛禾医疗技术有限公司 | Medicine balloon catheter, medicine balloon catheter system and control method thereof |
| CN113289212A (en) * | 2021-06-04 | 2021-08-24 | 乐普（北京）医疗器械股份有限公司 | Shock wave auxiliary medicine perfusion balloon catheter and medical equipment |
| CN113367767A (en) * | 2021-06-11 | 2021-09-10 | 南京欣科医疗器械有限公司 | Micropore induced shock wave sacculus pipe and system |
| CN113349882A (en) * | 2021-06-23 | 2021-09-07 | 苏州中荟医疗科技有限公司 | Shock wave generating system |
| CN113332570A (en) * | 2021-07-02 | 2021-09-03 | 苏州中荟医疗科技有限公司 | Balloon catheter and shock wave generation system |
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