CN219782677U - Shock wave balloon catheter based on tip discharge - Google Patents
Shock wave balloon catheter based on tip discharge Download PDFInfo
- Publication number
- CN219782677U CN219782677U CN202321233334.4U CN202321233334U CN219782677U CN 219782677 U CN219782677 U CN 219782677U CN 202321233334 U CN202321233334 U CN 202321233334U CN 219782677 U CN219782677 U CN 219782677U
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- inner tube
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- balloon catheter
- tip
- electrode
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- 230000035939 shock Effects 0.000 title claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 210000005077 saccule Anatomy 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 210000004204 blood vessel Anatomy 0.000 description 12
- 238000005452 bending Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- 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
- A61B2017/22061—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 for spreading elements apart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
- A61B2017/22091—Explosive
Abstract
The utility model relates to the technical field of medical equipment, in particular to a shock wave balloon catheter based on tip discharge, which comprises the following components: an inner tube, the outside of which is provided with a balloon; a shock wave generating unit provided on the inner tube; an inner tube protection part arranged between the inner tube and the shock wave generation part; one side of the inner tube penetrates through the saccule, and the penetrating part is subjected to sealing treatment. By improving the structure of the shock wave balloon catheter, the number of shock wave sources, the emission intensity and the emission direction of shock waves can be accurately controlled, the emission efficiency of the shock waves is improved, and the safety and the effectiveness of medical instruments are improved; the assembly process is simple, the technical defects of complex structure and high assembly difficulty of the shock wave balloon catheter in the prior art are overcome, the manufacturing and assembly process of the shock wave balloon catheter is simplified, the safety and stability of the product quality and the continuous production efficiency are improved, and the manufacturing cost of the shock wave balloon catheter is reduced.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a shock wave balloon catheter based on tip discharge.
Background
Intravascular shock wave lithotripsy (ISL) has begun to be applied clinically abroad as an emerging technique in recent years. When the shock wave balloon is used, the shock wave balloon is firstly delivered to the calcified lesion part of the blood vessel, then the shock wave balloon is subjected to low-pressure expansion, and finally a high-voltage pulse power supply is started to release high-voltage pulses to the shock wave balloon, so that intermittent shock waves are generated, calcified plaques on the superficial and deep layers of the blood vessel cavity are broken, the lumen of the blood vessel is fully expanded, and the aim of remarkably improving the compliance of the blood vessel is achieved.
Currently, three layers of annular structures are adopted for electrode pairs in the shock wave saccule in the market, namely, an outer layer is a metal layer with an annular structure, and a pair of through holes are formed in the metal layer; the middle layer is an annular insulating layer, a pair of through holes are also formed in the insulating layer, and the outer layer and the through holes of the middle layer are concentrically arranged; the inner layer is a metal layer, is placed at the through holes of the outer layer and the inner layer, is provided with an electrode, and is connected with the high-voltage pulse module through a wire. When the shock wave balloon is used, conductive liquid in the balloon is filled into the through holes of the middle layer and the outer layer, high-voltage pulse is conducted to the inner layer structure through the conducting wire, the high-voltage pulse breaks through the conductive liquid at the through holes, and shock waves are generated at the through holes. However, this structure has three disadvantages:
1. the electrode has a complex structure, is mostly manufactured by adopting a manual bonding process, has high assembly difficulty, low product yield and poor bonding force between the electrode and the inner cavity tube, and is easy to fall off in the shock wave treatment process, so that the defect is caused.
2. When the shock wave is generated, the conductive liquid in the saccule is easy to generate foreign matters under the action of high-voltage pulse, and the situation of blocking the through holes often occurs, so that the shock wave is unevenly emitted, and the time is strong and weak, thereby influencing the treatment effect.
3. The shock wave emission direction is the same with the through hole orientation, generally only 2 emission directions, and shock wave emission efficiency is low, and treatment effect is relatively poor.
4. The inner tube of the shock wave balloon is easy to break down by high pressure generated by a shock wave and/or high pressure generated by a shock wave prevention and removal performance test, and the safety is poor.
Therefore, the prior art has great defects, and designing a shock wave balloon catheter which has simple assembly process, good shock stability, safety and reliability and can precisely control the shock wave intensity and the emission direction is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
Therefore, the utility model aims to overcome the technical problems required in the prior art, and provides the tip discharge shock wave balloon catheter which is simple in assembly process, good in shock stability, safe and reliable and can precisely control the strength and the emission direction of shock waves.
The utility model provides a shock wave balloon catheter based on tip discharge, which comprises the following components: an inner tube, the outside of which is provided with a balloon; a shock wave generating unit provided on the inner tube; an inner tube protection part arranged between the inner tube and the shock wave generation part; the balloon is penetrated by one side of the inner tube, sealing treatment is carried out at the penetrated part, conductive liquid is arranged between the inner tube and the balloon, and the shock wave generating part is suitable for generating intermittent shock waves.
Further, the shock wave generating unit includes: at least one group of electrode pairs are arranged on the inner tube; the high-voltage pulse module is electrically connected with each group of electrode pairs through wires; the electrode is positioned in the balloon, the high-voltage pulse module is positioned outside the balloon, and the high-voltage pulse module is suitable for generating high-voltage pulses.
Further, the electrode pair includes: the first electrode ring is provided with at least one first notch, and the two ends of the first notch form a first tip; the second electrode ring is provided with at least one second notch, and second tips are formed at two ends of the second notch; the first electrode ring and the second electrode ring are respectively and electrically connected with two poles of the high-voltage pulse module, and one side of the first electrode ring with a first tip is opposite to one side of the second electrode ring with a second tip and is provided with a gap.
Further, the inner tube protecting portion includes: the insulating layer is arranged between the electrode pair and the inner tube and sleeved on the inner tube.
Further, the insulating layer at the first electrode ring is integrated with the insulating layer at the second electrode ring.
Further, a space is reserved between the insulating layer at the first electrode ring and the insulating layer at the second electrode ring.
Further, the shock wave balloon catheter further comprises a developing portion adapted to observe whether the electrode pair is located in the working position.
Further, the developing portion includes: the developing rings are arranged on the inner tube, and the number of the developing rings is two and are respectively positioned at two sides of the area where the electrode pairs are positioned.
Further, the shock wave balloon catheter further comprises a pressure detection portion adapted to detect a pressure within the balloon.
Further, the pressure detecting section includes: the pressure sensor is arranged on the inner tube and positioned at one side of the area where the electrode pair is positioned, and the pressure sensor is connected with a power supply of the high-voltage pulse module through a wire.
The technical scheme of the utility model has the following advantages:
1. according to the shock wave balloon catheter based on the tip discharge, the number of shock wave sources and the emission intensity and direction of shock waves can be accurately controlled by improving the structure of the shock wave balloon catheter, so that the emission efficiency of the shock waves is improved, and the safety and the effectiveness of medical instruments are improved; the assembly process is simple, the technical defects of complex structure and high assembly difficulty of the shock wave balloon catheter in the prior art are overcome, the manufacturing and assembly process of the shock wave balloon catheter is simplified, the stability and continuous production efficiency of the product quality are improved, and the manufacturing cost of the shock wave balloon catheter is reduced.
2. According to the shock wave balloon catheter based on the tip discharge, through the arrangement of the insulating layer, the possibility of high-voltage breakdown of the inner tube generated by the first tip and/or the second tip can be reduced, and the possibility of high-voltage breakdown of the inner tube generated by the defibrillator can also be reduced; the service life of the inner tube is prolonged, and the requirements of the shock wave balloon catheter on the preventing and eliminating fibrillation performance are met.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of an insulating layer structure with spacers according to the present utility model;
fig. 3 is a schematic view of an integrated insulation layer structure according to the present utility model.
Reference numerals illustrate;
10. an inner tube; 11. a balloon; 20. a shock wave generating section; 21. an electrode pair; 211. a first electrode ring; 212. a first notch; 213. a first tip; 214. a second electrode ring; 215. a second notch; 216. a second tip; 22. a high voltage pulse module; 30. an inner tube protection part; 31. an insulating layer; 40. a developing ring; 50. a pressure sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, 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 utility model 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 utility model. 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 utility model, 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 utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
Examples
A tip discharge-based shock wave balloon catheter embodiment as shown in fig. 1 to 3, comprising, as shown in fig. 1: an inner tube 10, a shock wave generating portion 20, and an inner tube protecting portion 30, wherein a balloon 11 is provided outside the inner tube 10, and the balloon 11 may be a double-layered balloon 11; the shock wave generating portion 20 is provided on the inner tube 10; the inner tube protecting portion 30 is provided between the inner tube 10 and the shock wave generating portion 20; the inner tube 10 has one side penetrating the balloon 11 and sealing the penetration, and conductive liquid is provided between the inner tube 10 and the balloon 11, the shock wave generating part 20 is adapted to generate intermittent shock waves, and the inner tube protecting part 30 is adapted to protect the inner tube 10 when the shock waves occur and also to protect the inner tube 10 when the defibrillator is in operation. Among these, the conductive liquid is preferably physiological saline, a contrast agent, a mixed solution of physiological saline and a contrast agent, or the like.
The shock wave balloon catheter is mainly used in a blood vessel to treat a position where the blood vessel is blocked, a lead wire is provided in the inner tube 10, and the inside of the inner tube 10 is communicated with blood, and when a shock wave is generated by high pressure, the high pressure released from the shock wave generating unit 20 acts on a calcified lesion position at the position where the blood vessel is blocked, and when the inner tube 10 is broken down, the conductive liquid in the balloon 11 flows into the inner tube 10, and a medical accident is caused.
Further, as shown in fig. 1 to 3, the shock wave generating unit 20 includes: at least one electrode pair 21, which is provided on the inner tube 10; the high-voltage pulse module 22, each group of electrode pairs 21 is electrically connected with the high-voltage pulse module 22 through a wire; the electrode pair 21 is located inside the balloon 11, the high voltage pulse module 22 is located outside the balloon 11, and the high voltage pulse module 22 is adapted to generate high voltage pulses. The number of the electrode pairs 21 should be designed according to the medical requirement, but the number of the electrode pairs 21 in the embodiment is not limited to two. The electrode pair 21 may be made of a metal material such as stainless steel, platinum iridium alloy, or tungsten molybdenum alloy.
It should be noted that, the voltage range of the high voltage pulse module 22 is 500V-5000V, the pulse width is 1-100 μs, and the voltage and pulse width of the high voltage pulse module 22 can be adjusted according to the requirement of the shock wave. After the high-voltage pulse module 22 loads high voltage on the electrode pair 21, the conductive liquid between the electrode pair 21 is ionized to discharge, so that shock waves are generated, the shock waves are conducted to calcified tissues attached to the outer surface of the balloon 11 through the conductive liquid, the shock waves act on the calcified tissues, and the calcified tissues in blood vessels are crushed.
Further, as shown in fig. 1 to 3, the electrode pair 21 includes: the first electrode ring 211 is provided with at least one first notch 212, and two ends of the first notch 212 form a first tip 213; a second electrode ring 214 provided with at least one second notch 215, and second tips 216 are formed at both ends of the second notch 215; the first electrode ring 211 and the second electrode ring 214 are electrically connected to two poles of the high voltage pulse module 22, respectively, and a side of the first electrode ring 211 having a first tip 213 is disposed opposite to a side of the second electrode ring 214 having a second tip 216 with a gap; the high voltage pulse module 22 is adapted to provide high voltage pulses to the first electrode ring 211 and the second electrode ring 214, respectively, through wires, and the conductive liquid between the first tip 213 and the second tip 216 generates a shock wave through ionization discharge, and the shock wave is transmitted to the outer surface of the balloon 11 through the conductive liquid. The first notch 212 and the second notch 215 may be one or more of an arc notch, a polygonal notch, or a polygonal notch. The requirements of the present embodiment are satisfied as long as the tip structure can be formed. The number of the first tips 213 and the second tips 216 can be adaptively adjusted according to medical image results and different calcification lesions, and the number and the emitting direction of the shock waves can be precisely controlled by changing the structural shapes, the arrangement modes and the like of the first tips 213 and the second tips 216, so that the treatment effect of the shock waves is further improved.
The gap between the first electrode ring 211 and the second electrode ring 214 is 0.5 to 3mm, and the first electrode ring 211 and the second electrode ring 214 may be fixed to the inner tube 10 by swaging, heat sealing, bonding, or the like. The first tip 213 and the second tip 216 may be disposed opposite to each other, or may be disposed alternately, so that a relative rotation angle is formed between the first tip 213 and the second tip 216. After the high-voltage pulse module 22 loads high voltage on the electrode pair 21, the surface curvatures of the first tip 213 and the second tip 216 are large, the equipotential surfaces are dense, the electric field strength is increased rapidly, so that the conductive liquid near the first tip 213 and the second tip 216 is easier to ionize to generate discharge, the strength of the shock wave can be controlled by controlling the voltage loaded by the high-voltage pulse module 22, and besides, the strength of the shock wave can also be controlled by adjusting the gap between the first electrode ring 211 and the second electrode ring 214. The relative position, number of the first tips 213 and the second tips 216, and the positions of the first electrode ring 211 and the second electrode ring 214, respectively, on the inner tube 10 may influence the position where the shock wave occurs, and thus the direction of the shock wave may be controlled.
It should be further noted that, when the electrode pairs 21 are plural, each of the electrode pairs 21 may be connected in parallel, but is not limited thereto. The relative positions and numbers of the first tip 213 and the second tip 216 and the positions of the first electrode ring 211 and the second electrode ring 214 on the inner tube 10 are determined according to the design based on the actual requirement, and the relative positions of the first tip 213 and the second tip 216 and the positions of the first electrode ring 211 and the second electrode ring 214 on the inner tube 10 are fixed after the manufacturing of the shock wave balloon catheter is completed.
Further, as shown in fig. 1 to 3, the inner tube protecting portion 30 includes: an insulating layer 31 provided between the electrode pair 21 and the inner tube 10 and fitted over the inner tube 10; the insulating layer 31 is adapted to protect the inner tube 10 from breakdown during the occurrence of shock waves and/or during operation of the defibrillator.
It should be noted that, the inner tube 10 is provided with a wire, and ideally, the high-voltage pulse module 22 applies a voltage to the first tip 213 and the second tip 216, so that the conductive liquid between the first tip 213 and the second tip 216 is ionized to generate a shock wave, but there is a case that the first tip 213 and/or the second tip 216 is directly connected with the wire in the inner tube 10, at this time, the inner tube 10 may be broken down, so that a crack or a through hole is generated on the inner tube 10, and a medical accident may be caused when the conductive liquid in the balloon 11 enters the inner tube 10. The insulating layer 31 not only can reduce the possibility of the first tip 213 and/or the second tip 216 breaking through the inner tube 10, but also can reduce the possibility of the high voltage of the defibrillator working to break through the inner tube 10, thereby prolonging the service life of the inner tube 10 and meeting the requirements of the shock wave balloon catheter on the prevention and elimination of the fibrillation performance.
Further, as shown in fig. 3, the insulating layer 31 at the first electrode ring 211 is integrated with the insulating layer 31 at the second electrode ring 214.
The insulating layer 31 of the first electrode ring 211 and the insulating layer 31 of the second electrode ring 214 are integrated, and thus, the present utility model can be used in a case where the bending of the blood vessel is relatively small.
Further, as shown in fig. 2, there is a space between the insulating layer 31 at the first electrode ring 211 and the insulating layer 31 at the second electrode ring 214.
The insulating layer 31 at the first electrode ring 211 and the insulating layer 31 at the second electrode ring 214 have a gap therebetween, so that when the bending of the blood vessel is relatively large, the insulating layer 31 is generally made of a relatively hard material, and when the blood vessel is relatively bent, the use is inconvenient. After the gap is arranged, when the blood vessel with relatively large bending is encountered, the gap can facilitate the bending of the inner tube 10 and the balloon 11, and the use is convenient.
Further, as shown in fig. 1, the shock wave balloon catheter further includes a developing portion adapted to observe whether the electrode pair 21 is located at the working position.
Further, the developing unit includes: the developing rings 40 are provided on the inner tube 10, and the developing rings 40 are provided in two and are located on both sides of the region where the electrode pair 21 is located.
The developing ring 40 is an X-ray opaque developing ring 40.
Further, as shown in fig. 1, the shock wave balloon catheter further includes a pressure detecting portion adapted to detect a pressure in the balloon 11.
Further, the pressure detecting unit includes: and a pressure sensor 50, wherein the pressure sensor 50 is arranged on the inner tube 10 and is positioned at one side of the region where the electrode pair 21 is positioned, and the pressure sensor 50 is connected with the power supply of the high-voltage pulse module 22 through a wire.
The pressure sensor 50 captures a pressure signal generated when the electrode pair 21 is discharged by monitoring the pressure change inside the balloon 11 in real time, and changes the discharge parameter in time. Meanwhile, the pressure sensor 50 can judge whether the balloon 11 is broken or not in real time according to the sealing condition of the balloon 11, so that the safety of the medical instrument is improved.
It should be further noted that, the wires connected to the electrode pair 21 and the pressure sensor 50 and the high-voltage pulse module 22 are all disposed outside the inner tube 10, and the wires may be fixed by a fixing ring, or a groove for fixing the wires may be disposed on the outer surface of the inner tube 10, and the wires are different from the wires disposed inside the inner tube 10.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.
Claims (10)
1. A shock wave balloon catheter based on tip discharge, comprising:
an inner tube (10) provided with a balloon (11) at the outside;
a shock wave generating unit (20) provided on the inner tube (10);
an inner tube protection unit (30) provided between the inner tube (10) and the shock wave generation unit (20);
one side of the inner tube (10) penetrates through the balloon (11), sealing treatment is carried out at the penetrating position, conductive liquid is arranged between the inner tube (10) and the balloon (11), and the shock wave generating part (20) is suitable for generating intermittent shock waves.
2. The tip discharge-based shockwave balloon catheter according to claim 1, wherein the shockwave generating portion (20) comprises:
a high voltage pulse module (22), the high voltage pulse module (22) being adapted to generate a high voltage pulse;
at least one group of electrode pairs (21) is arranged on the inner tube (10), and each group of electrode pairs (21) is electrically connected with the high-voltage pulse module (22) through a wire;
the electrode pair (21) is positioned in the balloon (11), and the high-voltage pulse module (22) is positioned outside the balloon (11).
3. The tip discharge based shock wave balloon catheter according to claim 2, wherein the inner tube protection (30) comprises:
an insulating layer (31) which is provided between the electrode pair (21) and the inner tube (10) and is fitted over the inner tube (10).
4. A shock wave balloon catheter based on tip discharge according to claim 3, wherein the electrode pair (21) comprises:
a first electrode ring (211) provided with at least one first notch (212), both ends of the first notch (212) forming a first tip (213);
a second electrode ring (214) provided with at least one second notch (215), both ends of the second notch (215) forming a second tip (216);
the first electrode ring (211) and the second electrode ring (214) are respectively and electrically connected with two poles of the high-voltage pulse module (22), and one side of the first electrode ring (211) with a first tip (213) is opposite to one side of the second electrode ring (214) with a second tip (216) and is provided with a gap.
5. The tip discharge based shockwave balloon catheter according to claim 4, wherein the insulating layer (31) at the first electrode ring (211) is integral with the insulating layer (31) at the second electrode ring (214).
6. The tip discharge based shockwave balloon catheter according to claim 4, wherein there is a space between an insulating layer (31) at the first electrode ring (211) and an insulating layer (31) at the second electrode ring (214).
7. The tip discharge based shockwave balloon catheter according to claim 2, further comprising a developing portion adapted to observe whether the electrode pair (21) is in the working position.
8. The tip discharge-based shock wave balloon catheter according to claim 7, wherein the developing portion comprises:
the development rings (40) are arranged on the inner tube (10), and the development rings (40) are two and are respectively positioned at two sides of the area where the electrode pair (21) is positioned.
9. The tip discharge based shockwave balloon catheter according to claim 2, further comprising a pressure detection portion adapted to detect the pressure within the balloon (11).
10. The tip discharge-based shock wave balloon catheter according to claim 9, wherein the pressure detecting portion comprises:
the pressure sensor (50) is arranged on the inner tube (10) and is positioned on one side of the area where the electrode pair (21) is positioned, and the pressure sensor (50) is connected with a power supply of the high-voltage pulse module (22) through a wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210586137.4A CN114886503A (en) | 2022-05-27 | 2022-05-27 | Shock wave sacculus pipe based on point discharge |
| CN2022105861374 | 2022-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219782677U true CN219782677U (en) | 2023-10-03 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210586137.4A Pending CN114886503A (en) | 2022-05-27 | 2022-05-27 | Shock wave sacculus pipe based on point discharge |
| CN202321233334.4U Active CN219782677U (en) | 2022-05-27 | 2023-05-19 | Shock wave balloon catheter based on tip discharge |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210586137.4A Pending CN114886503A (en) | 2022-05-27 | 2022-05-27 | Shock wave sacculus pipe based on point discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114886503A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117281580A (en) * | 2023-11-27 | 2023-12-26 | 沛嘉医疗科技(苏州)有限公司 | Electrode device for treating tissue calcification and shock wave device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN117281580A (en) * | 2023-11-27 | 2023-12-26 | 沛嘉医疗科技(苏州)有限公司 | Electrode device for treating tissue calcification and shock wave 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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